From 79f91266accc76b66a439613be04676d9eb11803 Mon Sep 17 00:00:00 2001
From: Katelyn Mann <picklesrus@users.noreply.github.com>
Date: Tue, 12 Apr 2016 14:59:58 -0700
Subject: [PATCH 01/12] Take into account height of the hat for hat blocks.
 Also, position hat blocks correctly in the flyout/toolbox. This fixes #330.

---
 core/block_render_svg.js | 15 +++++++++++++--
 core/flyout.js           |  8 ++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/core/block_render_svg.js b/core/block_render_svg.js
index 92ba5270f..362821264 100644
--- a/core/block_render_svg.js
+++ b/core/block_render_svg.js
@@ -76,11 +76,18 @@ Blockly.BlockSvg.CORNER_RADIUS = 8;
  * @const
  */
 Blockly.BlockSvg.START_HAT = false;
+/**
+ * Height of the top hat.
+ * @const
+ */
+Blockly.BlockSvg.START_HAT_HEIGHT = 15;
 /**
  * Path of the top hat's curve.
  * @const
  */
-Blockly.BlockSvg.START_HAT_PATH = 'c 30,-15 70,-15 100,0';
+Blockly.BlockSvg.START_HAT_PATH = 'c 30,-' +
+  Blockly.BlockSvg.START_HAT_HEIGHT +' 70,-' +
+  Blockly.BlockSvg.START_HAT_HEIGHT +' 100,0';
 /**
  * Path of the top hat's curve's highlight in LTR.
  * @const
@@ -480,6 +487,9 @@ Blockly.BlockSvg.prototype.renderCompute_ = function(iconWidth) {
  */
 Blockly.BlockSvg.prototype.renderDraw_ = function(iconWidth, inputRows) {
   this.startHat_ = false;
+  // Reset the height to zero and let the rendering process add in
+  // portions of the block height as it goes. (e.g. hats, inputs, etc.)
+  this.height = 0;
   // Should the top and bottom left corners be rounded or square?
   if (this.outputConnection) {
     this.squareTopLeftCorner_ = true;
@@ -497,6 +507,7 @@ Blockly.BlockSvg.prototype.renderDraw_ = function(iconWidth, inputRows) {
       // No output or previous connection.
       this.squareTopLeftCorner_ = true;
       this.startHat_ = true;
+      this.height += Blockly.BlockSvg.START_HAT_HEIGHT;
       inputRows.rightEdge = Math.max(inputRows.rightEdge, 100);
     }
     var nextBlock = this.getNextBlock();
@@ -860,7 +871,7 @@ Blockly.BlockSvg.prototype.renderDrawRight_ = function(steps, highlightSteps,
  */
 Blockly.BlockSvg.prototype.renderDrawBottom_ =
     function(steps, highlightSteps, connectionsXY, cursorY) {
-  this.height = cursorY + 1;  // Add one for the shadow.
+  this.height += cursorY + 1;  // Add one for the shadow.
   if (this.nextConnection) {
     steps.push('H', (Blockly.BlockSvg.NOTCH_WIDTH + (this.RTL ? 0.5 : - 0.5)) +
         ' ' + Blockly.BlockSvg.NOTCH_PATH_RIGHT);
diff --git a/core/flyout.js b/core/flyout.js
index 84bcbb810..5258feec8 100644
--- a/core/flyout.js
+++ b/core/flyout.js
@@ -510,6 +510,14 @@ Blockly.Flyout.prototype.reflow = function() {
         var blockXY = block.getRelativeToSurfaceXY();
         block.flyoutRect_.setAttribute('x',
             this.RTL ? blockXY.x - blockHW.width + tab : blockXY.x - tab);
+        // For hat blocks we want to shift them down by the hat height
+        // since the y coordinate is the corner, not the top of the
+        // hat.
+        var hatOffset =
+          block.startHat_ ? Blockly.BlockSvg.START_HAT_HEIGHT : 0;
+        if (hatOffset != 0) {
+          block.moveBy(0, hatOffset);
+        }
         block.flyoutRect_.setAttribute('y', blockXY.y);
       }
     }

From b69ab459bd78ae36625de7fd7552535cfb6aa169 Mon Sep 17 00:00:00 2001
From: Katelyn Mann <picklesrus@users.noreply.github.com>
Date: Mon, 18 Apr 2016 16:53:32 -0700
Subject: [PATCH 02/12] Fix bad merge. Commit 
 36e0764e577397d451c2270861c3ecbff36891a6 and
 e39a0b70692f89c83493371f141e82010f7c6e7c collided on their use/removal of the
 event param to one of the zoom functions.

---
 core/workspace_svg.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/core/workspace_svg.js b/core/workspace_svg.js
index 0194925c9..3aeb66915 100644
--- a/core/workspace_svg.js
+++ b/core/workspace_svg.js
@@ -1061,6 +1061,7 @@ Blockly.WorkspaceSvg.prototype.zoomReset = function(e) {
   this.scrollCenter_();
   // This event has been handled.  Don't start a workspace drag.
   e.stopPropagation();
+  e.preventDefault();
 };
 
 /**
@@ -1105,9 +1106,6 @@ Blockly.WorkspaceSvg.prototype.setScale = function(newScale) {
     // No toolbox, resize flyout.
     this.flyout_.reflow();
   }
-  // This event has been handled.  Don't start a workspace drag.
-  e.stopPropagation();
-  e.preventDefault();
 };
 
 /**

From 6d58f7959f2aef0a3a6b43bf8cbc2832ad299872 Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Tue, 19 Apr 2016 20:50:26 -0700
Subject: [PATCH 03/12] Don't fire click when editing a field.  Issue #336 part
 1.

---
 core/block_svg.js |  8 +++++++-
 core/blockly.js   | 15 ++++++---------
 2 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/core/block_svg.js b/core/block_svg.js
index efcacab5c..e5d191b1a 100644
--- a/core/block_svg.js
+++ b/core/block_svg.js
@@ -127,6 +127,11 @@ Blockly.BlockSvg.prototype.initSvg = function() {
  * Select this block.  Highlight it visually.
  */
 Blockly.BlockSvg.prototype.select = function() {
+  if (this.isShadow() && this.getParent()) {
+    // Shadow blocks should not be selected.
+    this.getParent().select();
+    return;
+  }
   if (Blockly.selected == this) {
     return;
   }
@@ -563,7 +568,8 @@ Blockly.BlockSvg.prototype.onMouseDown_ = function(e) {
  * @private
  */
 Blockly.BlockSvg.prototype.onMouseUp_ = function(e) {
-  if (Blockly.dragMode_ != Blockly.DRAG_FREE) {
+  if (Blockly.dragMode_ != Blockly.DRAG_FREE &&
+      !Blockly.WidgetDiv.isVisible()) {
     Blockly.Events.fire(
         new Blockly.Events.Ui(this, 'click', undefined, undefined));
   }
diff --git a/core/blockly.js b/core/blockly.js
index 365255099..aee1a20ca 100644
--- a/core/blockly.js
+++ b/core/blockly.js
@@ -233,15 +233,12 @@ Blockly.onKeyDown_ = function(e) {
     Blockly.hideChaff();
   } else if (e.keyCode == 8 || e.keyCode == 46) {
     // Delete or backspace.
-    try {
-      if (Blockly.selected && Blockly.selected.isDeletable()) {
-        deleteBlock = true;
-      }
-    } finally {
-      // Stop the browser from going back to the previous page.
-      // Use a finally so that any error in delete code above doesn't disappear
-      // from the console when the page rolls back.
-      e.preventDefault();
+    // Stop the browser from going back to the previous page.
+    // Do this first to prevent an error in the delete code from resulting in
+    // data loss.
+    e.preventDefault();
+    if (Blockly.selected && Blockly.selected.isDeletable()) {
+      deleteBlock = true;
     }
   } else if (e.altKey || e.ctrlKey || e.metaKey) {
     if (Blockly.selected &&

From 7e96a60da79e218802d4b3533e60aecdbe90e312 Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Tue, 19 Apr 2016 21:14:23 -0700
Subject: [PATCH 04/12] Use goog.math.Coordinate instead of separate X and Y
 properties.

---
 core/block_svg.js |  4 ++--
 core/bubble.js    | 57 +++++++++++++++++++++--------------------------
 core/comment.js   |  5 ++---
 core/icon.js      | 35 +++++++++++++----------------
 core/mutator.js   |  6 ++---
 core/warning.js   |  5 ++---
 6 files changed, 49 insertions(+), 63 deletions(-)

diff --git a/core/block_svg.js b/core/block_svg.js
index e5d191b1a..b2fab52cb 100644
--- a/core/block_svg.js
+++ b/core/block_svg.js
@@ -853,8 +853,8 @@ Blockly.BlockSvg.prototype.onMouseMove_ = function(e) {
     // Drag all the nested bubbles.
     for (var i = 0; i < this.draggedBubbles_.length; i++) {
       var commentData = this.draggedBubbles_[i];
-      commentData.bubble.setIconLocation(commentData.x + dx,
-          commentData.y + dy);
+      commentData.bubble.setIconLocation(
+          new goog.math.Coordinate(commentData.x + dx, commentData.y + dy));
     }
 
     // Check to see if any of this block's connections are within range of
diff --git a/core/bubble.js b/core/bubble.js
index 144ff05a2..b5a99f40b 100644
--- a/core/bubble.js
+++ b/core/bubble.js
@@ -34,18 +34,17 @@ goog.require('goog.userAgent');
 
 /**
  * Class for UI bubble.
- * @param {!Blockly.Workspace} workspace The workspace on which to draw the
+ * @param {!Blockly.WorkspaceSvg} workspace The workspace on which to draw the
  *     bubble.
  * @param {!Element} content SVG content for the bubble.
  * @param {Element} shape SVG element to avoid eclipsing.
- * @param {number} anchorX Absolute horizontal position of bubbles anchor point.
- * @param {number} anchorY Absolute vertical position of bubbles anchor point.
+ * @param {!goog.math.Coodinate} anchorXY Absolute position of bubble's anchor
+ *     point.
  * @param {?number} bubbleWidth Width of bubble, or null if not resizable.
  * @param {?number} bubbleHeight Height of bubble, or null if not resizable.
  * @constructor
  */
-Blockly.Bubble = function(workspace, content, shape,
-                          anchorX, anchorY,
+Blockly.Bubble = function(workspace, content, shape, anchorXY,
                           bubbleWidth, bubbleHeight) {
   this.workspace_ = workspace;
   this.content_ = content;
@@ -60,7 +59,7 @@ Blockly.Bubble = function(workspace, content, shape,
   var canvas = workspace.getBubbleCanvas();
   canvas.appendChild(this.createDom_(content, !!(bubbleWidth && bubbleHeight)));
 
-  this.setAnchorLocation(anchorX, anchorY);
+  this.setAnchorLocation(anchorXY);
   if (!bubbleWidth || !bubbleHeight) {
     var bBox = /** @type {SVGLocatable} */ (this.content_).getBBox();
     bubbleWidth = bBox.width + 2 * Blockly.Bubble.BORDER_WIDTH;
@@ -145,16 +144,11 @@ Blockly.Bubble.unbindDragEvents_ = function() {
 Blockly.Bubble.prototype.rendered_ = false;
 
 /**
- * Absolute X coordinate of anchor point.
+ * Absolute coordinate of anchor point.
+ * @type {goog.math.Coordinate}
  * @private
  */
-Blockly.Bubble.prototype.anchorX_ = 0;
-
-/**
- * Absolute Y coordinate of anchor point.
- * @private
- */
-Blockly.Bubble.prototype.anchorY_ = 0;
+Blockly.Bubble.prototype.anchorXY_ = null;
 
 /**
  * Relative X coordinate of bubble with respect to the anchor's centre.
@@ -360,12 +354,10 @@ Blockly.Bubble.prototype.promote_ = function() {
 /**
  * Notification that the anchor has moved.
  * Update the arrow and bubble accordingly.
- * @param {number} x Absolute horizontal location.
- * @param {number} y Absolute vertical location.
+ * @param {!goog.math.Coordinate} xy Absolute location.
  */
-Blockly.Bubble.prototype.setAnchorLocation = function(x, y) {
-  this.anchorX_ = x;
-  this.anchorY_ = y;
+Blockly.Bubble.prototype.setAnchorLocation = function(xy) {
+  this.anchorXY_ = xy;
   if (this.rendered_) {
     this.positionBubble_();
   }
@@ -383,31 +375,32 @@ Blockly.Bubble.prototype.layoutBubble_ = function() {
   var metrics = this.workspace_.getMetrics();
   metrics.viewWidth /= this.workspace_.scale;
   metrics.viewLeft /= this.workspace_.scale;
+  var anchorX = this.anchorXY_.x;
   if (this.workspace_.RTL) {
-    if (this.anchorX_ - metrics.viewLeft - relativeLeft - this.width_ <
+    if (anchorX - metrics.viewLeft - relativeLeft - this.width_ <
         Blockly.Scrollbar.scrollbarThickness) {
       // Slide the bubble right until it is onscreen.
-      relativeLeft = this.anchorX_ - metrics.viewLeft - this.width_ -
+      relativeLeft = anchorX - metrics.viewLeft - this.width_ -
         Blockly.Scrollbar.scrollbarThickness;
-    } else if (this.anchorX_ - metrics.viewLeft - relativeLeft >
+    } else if (anchorX - metrics.viewLeft - relativeLeft >
                metrics.viewWidth) {
       // Slide the bubble left until it is onscreen.
-      relativeLeft = this.anchorX_ - metrics.viewLeft - metrics.viewWidth;
+      relativeLeft = anchorX - metrics.viewLeft - metrics.viewWidth;
     }
   } else {
-    if (this.anchorX_ + relativeLeft < metrics.viewLeft) {
+    if (anchorX + relativeLeft < metrics.viewLeft) {
       // Slide the bubble right until it is onscreen.
-      relativeLeft = metrics.viewLeft - this.anchorX_;
+      relativeLeft = metrics.viewLeft - anchorX;
     } else if (metrics.viewLeft + metrics.viewWidth <
-        this.anchorX_ + relativeLeft + this.width_ +
+        anchorX + relativeLeft + this.width_ +
         Blockly.BlockSvg.SEP_SPACE_X +
         Blockly.Scrollbar.scrollbarThickness) {
       // Slide the bubble left until it is onscreen.
-      relativeLeft = metrics.viewLeft + metrics.viewWidth - this.anchorX_ -
+      relativeLeft = metrics.viewLeft + metrics.viewWidth - anchorX -
           this.width_ - Blockly.Scrollbar.scrollbarThickness;
     }
   }
-  if (this.anchorY_ + relativeTop < metrics.viewTop) {
+  if (this.anchorXY_.y + relativeTop < metrics.viewTop) {
     // Slide the bubble below the block.
     var bBox = /** @type {SVGLocatable} */ (this.shape_).getBBox();
     relativeTop = bBox.height;
@@ -421,13 +414,13 @@ Blockly.Bubble.prototype.layoutBubble_ = function() {
  * @private
  */
 Blockly.Bubble.prototype.positionBubble_ = function() {
-  var left;
+  var left = this.anchorXY_.x;
   if (this.workspace_.RTL) {
-    left = this.anchorX_ - this.relativeLeft_ - this.width_;
+    left -= this.relativeLeft_ + this.width_;
   } else {
-    left = this.anchorX_ + this.relativeLeft_;
+    left += this.relativeLeft_;
   }
-  var top = this.relativeTop_ + this.anchorY_;
+  var top = this.relativeTop_ + this.anchorXY_.y;
   this.bubbleGroup_.setAttribute('transform',
       'translate(' + left + ',' + top + ')');
 };
diff --git a/core/comment.js b/core/comment.js
index 06c9bae77..d1e4363bf 100644
--- a/core/comment.js
+++ b/core/comment.js
@@ -180,10 +180,9 @@ Blockly.Comment.prototype.setVisible = function(visible) {
   if (visible) {
     // Create the bubble.
     this.bubble_ = new Blockly.Bubble(
-        /** @type {!Blockly.Workspace} */ (this.block_.workspace),
+        /** @type {!Blockly.WorkspaceSvg} */ (this.block_.workspace),
         this.createEditor_(), this.block_.svgPath_,
-        this.iconX_, this.iconY_,
-        this.width_, this.height_);
+        this.iconXY_, this.width_, this.height_);
     this.bubble_.registerResizeEvent(this, this.resizeBubble_);
     this.updateColour();
   } else {
diff --git a/core/icon.js b/core/icon.js
index 5793a5b7a..9d2cbeaad 100644
--- a/core/icon.js
+++ b/core/icon.js
@@ -27,6 +27,7 @@
 goog.provide('Blockly.Icon');
 
 goog.require('goog.dom');
+goog.require('goog.math.Coordinate');
 
 
 /**
@@ -56,16 +57,11 @@ Blockly.Icon.prototype.SIZE = 17;
 Blockly.Icon.prototype.bubble_ = null;
 
 /**
- * Absolute X coordinate of icon's center.
+ * Absolute coordinate of icon's center.
+ * @type {goog.math.Coordinate}
  * @private
  */
-Blockly.Icon.prototype.iconX_ = 0;
-
-/**
- * Absolute Y coordinate of icon's centre.
- * @private
- */
-Blockly.Icon.prototype.iconY_ = 0;
+Blockly.Icon.prototype.iconXY_ = null;
 
 /**
  * Create the icon on the block.
@@ -176,14 +172,12 @@ Blockly.Icon.prototype.renderIcon = function(cursorX) {
 
 /**
  * Notification that the icon has moved.  Update the arrow accordingly.
- * @param {number} x Absolute horizontal location.
- * @param {number} y Absolute vertical location.
+ * @param {!goog.math.Coordinate} xy Absolute location.
  */
-Blockly.Icon.prototype.setIconLocation = function(x, y) {
-  this.iconX_ = x;
-  this.iconY_ = y;
+Blockly.Icon.prototype.setIconLocation = function(xy) {
+  this.iconXY_ = xy;
   if (this.isVisible()) {
-    this.bubble_.setAnchorLocation(x, y);
+    this.bubble_.setAnchorLocation(xy);
   }
 };
 
@@ -195,17 +189,18 @@ Blockly.Icon.prototype.computeIconLocation = function() {
   // Find coordinates for the centre of the icon and update the arrow.
   var blockXY = this.block_.getRelativeToSurfaceXY();
   var iconXY = Blockly.getRelativeXY_(this.iconGroup_);
-  var newX = blockXY.x + iconXY.x + this.SIZE / 2;
-  var newY = blockXY.y + iconXY.y + this.SIZE / 2;
-  if (newX !== this.iconX_ || newY !== this.iconY_) {
-    this.setIconLocation(newX, newY);
+  var newXY = new goog.math.Coordinate(
+      blockXY.x + iconXY.x + this.SIZE / 2,
+      blockXY.y + iconXY.y + this.SIZE / 2);
+  if (!goog.math.Coordinate.equals(this.getIconLocation(), newXY)) {
+    this.setIconLocation(newXY);
   }
 };
 
 /**
  * Returns the center of the block's icon relative to the surface.
- * @return {!Object} Object with x and y properties.
+ * @return {!goog.math.Coordinate} Object with x and y properties.
  */
 Blockly.Icon.prototype.getIconLocation = function() {
-  return {x: this.iconX_, y: this.iconY_};
+  return this.iconXY_;
 };
diff --git a/core/mutator.js b/core/mutator.js
index ba7c5c27a..a53babfd9 100644
--- a/core/mutator.js
+++ b/core/mutator.js
@@ -202,9 +202,9 @@ Blockly.Mutator.prototype.setVisible = function(visible) {
       new Blockly.Events.Ui(this.block_, 'mutatorOpen', !visible, visible));
   if (visible) {
     // Create the bubble.
-    this.bubble_ = new Blockly.Bubble(this.block_.workspace,
-        this.createEditor_(), this.block_.svgPath_,
-        this.iconX_, this.iconY_, null, null);
+    this.bubble_ = new Blockly.Bubble(
+        /** @type {!Blockly.WorkspaceSvg} */ (this.block_.workspace),
+        this.createEditor_(), this.block_.svgPath_, this.iconXY_, null, null);
     var tree = this.workspace_.options.languageTree;
     if (tree) {
       this.workspace_.flyout_.init(this.workspace_);
diff --git a/core/warning.js b/core/warning.js
index 4ec8bf771..bffbf06df 100644
--- a/core/warning.js
+++ b/core/warning.js
@@ -111,9 +111,8 @@ Blockly.Warning.prototype.setVisible = function(visible) {
     // Create the bubble to display all warnings.
     var paragraph = Blockly.Warning.textToDom_(this.getText());
     this.bubble_ = new Blockly.Bubble(
-        /** @type {!Blockly.Workspace} */ (this.block_.workspace),
-        paragraph, this.block_.svgPath_,
-        this.iconX_, this.iconY_, null, null);
+        /** @type {!Blockly.WorkspaceSvg} */ (this.block_.workspace),
+        paragraph, this.block_.svgPath_, this.iconXY_, null, null);
     if (this.block_.RTL) {
       // Right-align the paragraph.
       // This cannot be done until the bubble is rendered on screen.

From c785cabe4057559cdb2abc5159fcd3a1691469d1 Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Tue, 19 Apr 2016 23:24:42 -0700
Subject: [PATCH 05/12] Use more coordinates.

---
 core/block_svg.js     |  9 ++++-----
 core/bubble.js        |  9 +++++----
 core/connection.js    |  8 +++-----
 core/connection_db.js | 12 +++++-------
 core/events.js        |  2 ++
 core/workspace_svg.js | 29 +++++++++--------------------
 6 files changed, 28 insertions(+), 41 deletions(-)

diff --git a/core/block_svg.js b/core/block_svg.js
index b2fab52cb..c58eade11 100644
--- a/core/block_svg.js
+++ b/core/block_svg.js
@@ -537,7 +537,7 @@ Blockly.BlockSvg.prototype.onMouseDown_ = function(e) {
     Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);
 
     this.dragStartXY_ = this.getRelativeToSurfaceXY();
-    this.workspace.startDrag(e, this.dragStartXY_.x, this.dragStartXY_.y);
+    this.workspace.startDrag(e, this.dragStartXY_);
 
     Blockly.dragMode_ = Blockly.DRAG_STICKY;
     Blockly.BlockSvg.onMouseUpWrapper_ = Blockly.bindEvent_(document,
@@ -845,8 +845,7 @@ Blockly.BlockSvg.prototype.onMouseMove_ = function(e) {
   }
   if (Blockly.dragMode_ == Blockly.DRAG_FREE) {
     // Unrestricted dragging.
-    var dx = oldXY.x - this.dragStartXY_.x;
-    var dy = oldXY.y - this.dragStartXY_.y;
+    var dxy = goog.math.Coordinate.difference(oldXY, this.dragStartXY_);
     var group = this.getSvgRoot();
     group.translate_ = 'translate(' + newXY.x + ',' + newXY.y + ')';
     group.setAttribute('transform', group.translate_ + group.skew_);
@@ -854,7 +853,7 @@ Blockly.BlockSvg.prototype.onMouseMove_ = function(e) {
     for (var i = 0; i < this.draggedBubbles_.length; i++) {
       var commentData = this.draggedBubbles_[i];
       commentData.bubble.setIconLocation(
-          new goog.math.Coordinate(commentData.x + dx, commentData.y + dy));
+          goog.math.Coordinate.sum(commentData, dxy));
     }
 
     // Check to see if any of this block's connections are within range of
@@ -865,7 +864,7 @@ Blockly.BlockSvg.prototype.onMouseMove_ = function(e) {
     var radiusConnection = Blockly.SNAP_RADIUS;
     for (var i = 0; i < myConnections.length; i++) {
       var myConnection = myConnections[i];
-      var neighbour = myConnection.closest(radiusConnection, dx, dy);
+      var neighbour = myConnection.closest(radiusConnection, dxy);
       if (neighbour.connection) {
         closestConnection = neighbour.connection;
         localConnection = myConnection;
diff --git a/core/bubble.js b/core/bubble.js
index b5a99f40b..379b9b1b1 100644
--- a/core/bubble.js
+++ b/core/bubble.js
@@ -29,6 +29,7 @@ goog.provide('Blockly.Bubble');
 goog.require('Blockly.Workspace');
 goog.require('goog.dom');
 goog.require('goog.math');
+goog.require('goog.math.Coordinate');
 goog.require('goog.userAgent');
 
 
@@ -263,9 +264,9 @@ Blockly.Bubble.prototype.bubbleMouseDown_ = function(e) {
   // Left-click (or middle click)
   Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);
 
-  this.workspace_.startDrag(e,
+  this.workspace_.startDrag(e, new goog.math.Coordinate(
       this.workspace_.RTL ? -this.relativeLeft_ : this.relativeLeft_,
-      this.relativeTop_);
+      this.relativeTop_));
 
   Blockly.Bubble.onMouseUpWrapper_ = Blockly.bindEvent_(document,
       'mouseup', this, Blockly.Bubble.unbindDragEvents_);
@@ -306,8 +307,8 @@ Blockly.Bubble.prototype.resizeMouseDown_ = function(e) {
   // Left-click (or middle click)
   Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);
 
-  this.workspace_.startDrag(e,
-      this.workspace_.RTL ? -this.width_ : this.width_, this.height_);
+  this.workspace_.startDrag(e, new goog.math.Coordinate(
+      this.workspace_.RTL ? -this.width_ : this.width_, this.height_));
 
   Blockly.Bubble.onMouseUpWrapper_ = Blockly.bindEvent_(document,
       'mouseup', this, Blockly.Bubble.unbindDragEvents_);
diff --git a/core/connection.js b/core/connection.js
index 8f32d746b..25adcf49d 100644
--- a/core/connection.js
+++ b/core/connection.js
@@ -664,16 +664,14 @@ Blockly.Connection.prototype.tighten_ = function() {
 /**
  * Find the closest compatible connection to this connection.
  * @param {number} maxLimit The maximum radius to another connection.
- * @param {number} dx Horizontal offset between this connection's location
- *     in the database and the current location (as a result of dragging).
- * @param {number} dy Vertical offset between this connection's location
+ * @param {!goog.math.Coordinate} dxy Offset between this connection's location
  *     in the database and the current location (as a result of dragging).
  * @return {!{connection: ?Blockly.Connection, radius: number}} Contains two
  *     properties:' connection' which is either another connection or null,
  *     and 'radius' which is the distance.
  */
-Blockly.Connection.prototype.closest = function(maxLimit, dx, dy) {
-  return this.dbOpposite_.searchForClosest(this, maxLimit, dx, dy);
+Blockly.Connection.prototype.closest = function(maxLimit, dxy) {
+  return this.dbOpposite_.searchForClosest(this, maxLimit, dxy);
 };
 
 /**
diff --git a/core/connection_db.js b/core/connection_db.js
index 580ae353d..f0b69f7f5 100644
--- a/core/connection_db.js
+++ b/core/connection_db.js
@@ -226,16 +226,14 @@ Blockly.ConnectionDB.prototype.isInYRange_ = function(index, baseY, maxRadius) {
  * @param {!Blockly.Connection} conn The connection searching for a compatible
  *     mate.
  * @param {number} maxRadius The maximum radius to another connection.
- * @param {number} dx Horizontal offset between this connection's location
- *     in the database and the current location (as a result of dragging).
- * @param {number} dy Vertical offset between this connection's location
+ * @param {!goog.math.Coordinate} dxy Offset between this connection's location
  *     in the database and the current location (as a result of dragging).
  * @return {!{connection: ?Blockly.Connection, radius: number}} Contains two
  *     properties:' connection' which is either another connection or null,
  *     and 'radius' which is the distance.
  */
-Blockly.ConnectionDB.prototype.searchForClosest = function(conn, maxRadius, dx,
-    dy) {
+Blockly.ConnectionDB.prototype.searchForClosest = function(conn, maxRadius,
+    dxy) {
   // Don't bother.
   if (!this.length) {
     return {connection: null, radius: maxRadius};
@@ -245,8 +243,8 @@ Blockly.ConnectionDB.prototype.searchForClosest = function(conn, maxRadius, dx,
   var baseY = conn.y_;
   var baseX = conn.x_;
 
-  conn.x_ = baseX + dx;
-  conn.y_ = baseY + dy;
+  conn.x_ = baseX + dxy.x;
+  conn.y_ = baseY + dxy.y;
 
   // findPositionForConnection finds an index for insertion, which is always
   // after any block with the same y index.  We want to search both forward
diff --git a/core/events.js b/core/events.js
index ee401c99e..3de8bc5c3 100644
--- a/core/events.js
+++ b/core/events.js
@@ -26,6 +26,8 @@
 
 goog.provide('Blockly.Events');
 
+goog.require('goog.math.Coordinate');
+
 
 /**
  * Group ID for new events.  Grouped events are indivisible.
diff --git a/core/workspace_svg.js b/core/workspace_svg.js
index 3aeb66915..4b9570ce3 100644
--- a/core/workspace_svg.js
+++ b/core/workspace_svg.js
@@ -107,18 +107,11 @@ Blockly.WorkspaceSvg.prototype.startScrollX = 0;
 Blockly.WorkspaceSvg.prototype.startScrollY = 0;
 
 /**
- * Horizontal distance from mouse to object being dragged.
- * @type {number}
+ * Distance from mouse to object being dragged.
+ * @type {goog.math.Coordinate}
  * @private
  */
-Blockly.WorkspaceSvg.prototype.dragDeltaX_ = 0;
-
-/**
- * Vertical distance from mouse to object being dragged.
- * @type {number}
- * @private
- */
-Blockly.WorkspaceSvg.prototype.dragDeltaY_ = 0;
+Blockly.WorkspaceSvg.prototype.dragDeltaXY_ = null;
 
 /**
  * Current scale.
@@ -494,8 +487,8 @@ Blockly.WorkspaceSvg.prototype.paste = function(xmlBlock) {
         // Check for blocks in snap range to any of its connections.
         var connections = block.getConnections_(false);
         for (var i = 0, connection; connection = connections[i]; i++) {
-          var neighbour =
-              connection.closest(Blockly.SNAP_RADIUS, blockX, blockY);
+          var neighbour = connection.closest(Blockly.SNAP_RADIUS,
+              new goog.math.Coordinate(blockX, blockY));
           if (neighbour.connection) {
             collide = true;
             break;
@@ -620,17 +613,15 @@ Blockly.WorkspaceSvg.prototype.onMouseDown_ = function(e) {
 /**
  * Start tracking a drag of an object on this workspace.
  * @param {!Event} e Mouse down event.
- * @param {number} x Starting horizontal location of object.
- * @param {number} y Starting vertical location of object.
+ * @param {!goog.math.Coordinate} xy Starting location of object.
  */
-Blockly.WorkspaceSvg.prototype.startDrag = function(e, x, y) {
+Blockly.WorkspaceSvg.prototype.startDrag = function(e, xy) {
   // Record the starting offset between the bubble's location and the mouse.
   var point = Blockly.mouseToSvg(e, this.getParentSvg());
   // Fix scale of mouse event.
   point.x /= this.scale;
   point.y /= this.scale;
-  this.dragDeltaX_ = x - point.x;
-  this.dragDeltaY_ = y - point.y;
+  this.dragDeltaXY_ = goog.math.Coordinate.difference(xy, point);
 };
 
 /**
@@ -643,9 +634,7 @@ Blockly.WorkspaceSvg.prototype.moveDrag = function(e) {
   // Fix scale of mouse event.
   point.x /= this.scale;
   point.y /= this.scale;
-  var x = this.dragDeltaX_ + point.x;
-  var y = this.dragDeltaY_ + point.y;
-  return new goog.math.Coordinate(x, y);
+  return goog.math.Coordinate.sum(this.dragDeltaXY_, point);
 };
 
 /**

From 52eb6adcc23d1ad376cd87cc9c1c27886087fcf4 Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Wed, 20 Apr 2016 05:03:05 -0700
Subject: [PATCH 06/12] Add click events to non-closing flyout blocks. Issue
 #337.

---
 core/flyout.js | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/core/flyout.js b/core/flyout.js
index f960bafba..d4930be8b 100644
--- a/core/flyout.js
+++ b/core/flyout.js
@@ -28,6 +28,7 @@ goog.provide('Blockly.Flyout');
 
 goog.require('Blockly.Block');
 goog.require('Blockly.Comment');
+goog.require('Blockly.Events.Ui');
 goog.require('Blockly.WorkspaceSvg');
 goog.require('goog.dom');
 goog.require('goog.events');
@@ -436,16 +437,18 @@ Blockly.Flyout.prototype.show = function(xmlList) {
     if (this.autoClose) {
       this.listeners_.push(Blockly.bindEvent_(root, 'mousedown', null,
           this.createBlockFunc_(block)));
+      this.listeners_.push(Blockly.bindEvent_(rect, 'mousedown', null,
+          this.createBlockFunc_(block)));
     } else {
       this.listeners_.push(Blockly.bindEvent_(root, 'mousedown', null,
           this.blockMouseDown_(block)));
+      this.listeners_.push(Blockly.bindEvent_(rect, 'mousedown', null,
+          this.blockMouseDown_(block)));
     }
     this.listeners_.push(Blockly.bindEvent_(root, 'mouseover', block,
         block.addSelect));
     this.listeners_.push(Blockly.bindEvent_(root, 'mouseout', block,
         block.removeSelect));
-    this.listeners_.push(Blockly.bindEvent_(rect, 'mousedown', null,
-        this.createBlockFunc_(block)));
     this.listeners_.push(Blockly.bindEvent_(rect, 'mouseover', block,
         block.addSelect));
     this.listeners_.push(Blockly.bindEvent_(rect, 'mouseout', block,
@@ -544,7 +547,7 @@ Blockly.Flyout.prototype.blockMouseDown_ = function(block) {
       Blockly.Flyout.startBlock_ = block;
       Blockly.Flyout.startFlyout_ = flyout;
       Blockly.Flyout.onMouseUpWrapper_ = Blockly.bindEvent_(document,
-          'mouseup', this, Blockly.terminateDrag_);
+          'mouseup', this, flyout.onMouseUp_);
       Blockly.Flyout.onMouseMoveBlockWrapper_ = Blockly.bindEvent_(document,
           'mousemove', this, flyout.onMouseMoveBlock_);
     }
@@ -574,6 +577,23 @@ Blockly.Flyout.prototype.onMouseDown_ = function(e) {
   e.stopPropagation();
 };
 
+/**
+ * Handle a mouse-up anywhere in the SVG pane.  Is only registered when a
+ * block is clicked.  We can't use mouseUp on the block since a fast-moving
+ * cursor can briefly escape the block before it catches up.
+ * @param {!Event} e Mouse up event.
+ * @private
+ */
+Blockly.Flyout.prototype.onMouseUp_ = function(e) {
+  if (Blockly.dragMode_ != Blockly.DRAG_FREE &&
+      !Blockly.WidgetDiv.isVisible()) {
+    Blockly.Events.fire(
+        new Blockly.Events.Ui(Blockly.Flyout.startBlock_, 'click',
+                              undefined, undefined));
+  }
+  Blockly.terminateDrag_();
+};
+
 /**
  * Handle a mouse-move to vertically drag the flyout.
  * @param {!Event} e Mouse move event.

From 4bc24fe3e14bff661458b5b6d3781a36856fdccb Mon Sep 17 00:00:00 2001
From: rachel-fenichel <fenichel@google.com>
Date: Wed, 20 Apr 2016 11:26:01 -0700
Subject: [PATCH 07/12] Constrain scrollbar value in set() and decompose
 resize() into horizontal and vertical modes.

---
 core/scrollbar.js | 139 +++++++++++++++++++++++++++-------------------
 1 file changed, 81 insertions(+), 58 deletions(-)

diff --git a/core/scrollbar.js b/core/scrollbar.js
index 42d053cc0..6c2a4ff31 100644
--- a/core/scrollbar.js
+++ b/core/scrollbar.js
@@ -270,69 +270,91 @@ Blockly.Scrollbar.prototype.resize = function(opt_metrics) {
    * .absoluteLeft: Left-edge of view.
    */
   if (this.horizontal_) {
-    var outerLength = hostMetrics.viewWidth - 1;
-    if (this.pair_) {
-      // Shorten the scrollbar to make room for the corner square.
-      outerLength -= Blockly.Scrollbar.scrollbarThickness;
-    } else {
-      // Only show the scrollbar if needed.
-      // Ideally this would also apply to scrollbar pairs, but that's a bigger
-      // headache (due to interactions with the corner square).
-      this.setVisible(outerLength < hostMetrics.contentWidth);
-    }
-    this.ratio_ = outerLength / hostMetrics.contentWidth;
-    if (this.ratio_ === -Infinity || this.ratio_ === Infinity ||
-        isNaN(this.ratio_)) {
-      this.ratio_ = 0;
-    }
-    var innerLength = hostMetrics.viewWidth * this.ratio_;
-    var innerOffset = (hostMetrics.viewLeft - hostMetrics.contentLeft) *
-        this.ratio_;
-    this.svgKnob_.setAttribute('width', Math.max(0, innerLength));
-    this.xCoordinate = hostMetrics.absoluteLeft + 0.5;
-    if (this.pair_ && this.workspace_.RTL) {
-      this.xCoordinate += hostMetrics.absoluteLeft +
-          Blockly.Scrollbar.scrollbarThickness;
-    }
-    this.yCoordinate = hostMetrics.absoluteTop + hostMetrics.viewHeight -
-        Blockly.Scrollbar.scrollbarThickness - 0.5;
-    this.svgGroup_.setAttribute('transform',
-        'translate(' + this.xCoordinate + ',' + this.yCoordinate + ')');
-    this.svgBackground_.setAttribute('width', Math.max(0, outerLength));
-    this.svgKnob_.setAttribute('x', this.constrainKnob_(innerOffset));
+    this.resizeHorizontal_(hostMetrics);
   } else {
-    var outerLength = hostMetrics.viewHeight - 1;
-    if (this.pair_) {
-      // Shorten the scrollbar to make room for the corner square.
-      outerLength -= Blockly.Scrollbar.scrollbarThickness;
-    } else {
-      // Only show the scrollbar if needed.
-      this.setVisible(outerLength < hostMetrics.contentHeight);
-    }
-    this.ratio_ = outerLength / hostMetrics.contentHeight;
-    if (this.ratio_ === -Infinity || this.ratio_ === Infinity ||
-        isNaN(this.ratio_)) {
-      this.ratio_ = 0;
-    }
-    var innerLength = hostMetrics.viewHeight * this.ratio_;
-    var innerOffset = (hostMetrics.viewTop - hostMetrics.contentTop) *
-        this.ratio_;
-    this.svgKnob_.setAttribute('height', Math.max(0, innerLength));
-    this.xCoordinate = hostMetrics.absoluteLeft + 0.5;
-    if (!this.workspace_.RTL) {
-      this.xCoordinate += hostMetrics.viewWidth -
-          Blockly.Scrollbar.scrollbarThickness - 1;
-    }
-    this.yCoordinate = hostMetrics.absoluteTop + 0.5;
-    this.svgGroup_.setAttribute('transform',
-        'translate(' + this.xCoordinate + ',' + this.yCoordinate + ')');
-    this.svgBackground_.setAttribute('height', Math.max(0, outerLength));
-    this.svgKnob_.setAttribute('y', this.constrainKnob_(innerOffset));
+    this.resizeVertical_(hostMetrics);
   }
   // Resizing may have caused some scrolling.
   this.onScroll_();
 };
 
+/**
+ * Recalculate a horizontal scrollbar's location and length.
+ * @param {!Object} hostMetrics A data structure describing all the
+ * required dimensions, possibly fetched from the host
+ * object.
+ * @private
+ */
+Blockly.Scrollbar.prototype.resizeHorizontal_ = function(hostMetrics) {
+  var outerLength = hostMetrics.viewWidth - 1;
+  if (this.pair_) {
+    // Shorten the scrollbar to make room for the corner square.
+    outerLength -= Blockly.Scrollbar.scrollbarThickness;
+  } else {
+    // Only show the scrollbar if needed.
+    // Ideally this would also apply to scrollbar pairs, but that's a bigger
+    // headache (due to interactions with the corner square).
+    this.setVisible(outerLength < hostMetrics.contentWidth);
+  }
+  this.ratio_ = outerLength / hostMetrics.contentWidth;
+  if (this.ratio_ === -Infinity || this.ratio_ === Infinity ||
+      isNaN(this.ratio_)) {
+    this.ratio_ = 0;
+  }
+  var innerLength = hostMetrics.viewWidth * this.ratio_;
+  var innerOffset = (hostMetrics.viewLeft - hostMetrics.contentLeft) *
+      this.ratio_;
+  this.svgKnob_.setAttribute('width', Math.max(0, innerLength));
+  this.xCoordinate = hostMetrics.absoluteLeft + 0.5;
+  if (this.pair_ && this.workspace_.RTL) {
+    this.xCoordinate += hostMetrics.absoluteLeft +
+        Blockly.Scrollbar.scrollbarThickness;
+  }
+  this.yCoordinate = hostMetrics.absoluteTop + hostMetrics.viewHeight -
+      Blockly.Scrollbar.scrollbarThickness - 0.5;
+  this.svgGroup_.setAttribute('transform',
+      'translate(' + this.xCoordinate + ',' + this.yCoordinate + ')');
+  this.svgBackground_.setAttribute('width', Math.max(0, outerLength));
+  this.svgKnob_.setAttribute('x', this.constrainKnob_(innerOffset));
+};
+
+/**
+ * Recalculate a vertical scrollbar's location and length.
+ * @param {!Object} hostMetrics A data structure describing all the
+ * required dimensions, possibly fetched from the host
+ * object.
+ * @private
+ */
+Blockly.Scrollbar.prototype.resizeVertical_ = function(hostMetrics) {
+  var outerLength = hostMetrics.viewHeight - 1;
+  if (this.pair_) {
+    // Shorten the scrollbar to make room for the corner square.
+    outerLength -= Blockly.Scrollbar.scrollbarThickness;
+  } else {
+    // Only show the scrollbar if needed.
+    this.setVisible(outerLength < hostMetrics.contentHeight);
+  }
+  this.ratio_ = outerLength / hostMetrics.contentHeight;
+  if (this.ratio_ === -Infinity || this.ratio_ === Infinity ||
+      isNaN(this.ratio_)) {
+    this.ratio_ = 0;
+  }
+  var innerLength = hostMetrics.viewHeight * this.ratio_;
+  var innerOffset = (hostMetrics.viewTop - hostMetrics.contentTop) *
+      this.ratio_;
+  this.svgKnob_.setAttribute('height', Math.max(0, innerLength));
+  this.xCoordinate = hostMetrics.absoluteLeft + 0.5;
+  if (!this.workspace_.RTL) {
+    this.xCoordinate += hostMetrics.viewWidth -
+        Blockly.Scrollbar.scrollbarThickness - 1;
+  }
+  this.yCoordinate = hostMetrics.absoluteTop + 0.5;
+  this.svgGroup_.setAttribute('transform',
+      'translate(' + this.xCoordinate + ',' + this.yCoordinate + ')');
+  this.svgBackground_.setAttribute('height', Math.max(0, outerLength));
+  this.svgKnob_.setAttribute('y', this.constrainKnob_(innerOffset));
+};
+
 /**
  * Create all the DOM elements required for a scrollbar.
  * The resulting widget is not sized.
@@ -533,8 +555,9 @@ Blockly.Scrollbar.prototype.onScroll_ = function() {
  * @param {number} value The distance from the top/left end of the bar.
  */
 Blockly.Scrollbar.prototype.set = function(value) {
+  var constrainedValue = this.constrainKnob_(value * this.ratio_);
   // Move the scrollbar slider.
-  this.svgKnob_.setAttribute(this.horizontal_ ? 'x' : 'y', value * this.ratio_);
+  this.svgKnob_.setAttribute(this.horizontal_ ? 'x' : 'y', constrainedValue);
   this.onScroll_();
 };
 

From c8f98a7dedec6bfb5ec7d95c06e7f0b106619a13 Mon Sep 17 00:00:00 2001
From: rachel-fenichel <fenichel@google.com>
Date: Wed, 20 Apr 2016 14:14:53 -0700
Subject: [PATCH 08/12] Decompose functions in flyout.  Does not change
 behaviour.

---
 core/flyout.js | 250 ++++++++++++++++++++++++++++++-------------------
 1 file changed, 156 insertions(+), 94 deletions(-)

diff --git a/core/flyout.js b/core/flyout.js
index d4930be8b..47d7a8bdb 100644
--- a/core/flyout.js
+++ b/core/flyout.js
@@ -264,20 +264,8 @@ Blockly.Flyout.prototype.position = function() {
   if (this.RTL) {
     edgeWidth *= -1;
   }
-  var path = ['M ' + (this.RTL ? this.width_ : 0) + ',0'];
-  path.push('h', edgeWidth);
-  path.push('a', this.CORNER_RADIUS, this.CORNER_RADIUS, 0, 0,
-      this.RTL ? 0 : 1,
-      this.RTL ? -this.CORNER_RADIUS : this.CORNER_RADIUS,
-      this.CORNER_RADIUS);
-  path.push('v', Math.max(0, metrics.viewHeight - this.CORNER_RADIUS * 2));
-  path.push('a', this.CORNER_RADIUS, this.CORNER_RADIUS, 0, 0,
-      this.RTL ? 0 : 1,
-      this.RTL ? this.CORNER_RADIUS : -this.CORNER_RADIUS,
-      this.CORNER_RADIUS);
-  path.push('h', -edgeWidth);
-  path.push('z');
-  this.svgBackground_.setAttribute('d', path.join(' '));
+
+  this.setBackgroundPath_(edgeWidth, metrics.viewHeight);
 
   var x = metrics.absoluteLeft;
   if (this.RTL) {
@@ -296,6 +284,37 @@ Blockly.Flyout.prototype.position = function() {
   }
 };
 
+/**
+ * Create and set the path for the visible boundaries of the flyout.
+ * @param {number} width The width of the flyout, not including the
+ *     rounded corners.
+ * @param {number} height The height of the flyout, not including
+ *     rounded corners.
+ * @private
+ */
+Blockly.Flyout.prototype.setBackgroundPath_ = function(width, height) {
+  var path = ['M ' + (this.RTL ? this.width_ : 0) + ',0'];
+  // Top.
+  path.push('h', width);
+  // Rounded corner.
+  path.push('a', this.CORNER_RADIUS, this.CORNER_RADIUS, 0, 0,
+      this.RTL ? 0 : 1,
+      this.RTL ? -this.CORNER_RADIUS : this.CORNER_RADIUS,
+      this.CORNER_RADIUS);
+  // Side closest to the workspace.
+  path.push('v', Math.max(0, height - this.CORNER_RADIUS * 2));
+  // Rounded corner.
+  path.push('a', this.CORNER_RADIUS, this.CORNER_RADIUS, 0, 0,
+      this.RTL ? 0 : 1,
+      this.RTL ? this.CORNER_RADIUS : -this.CORNER_RADIUS,
+      this.CORNER_RADIUS);
+  // Bottom.
+  path.push('h', -width);
+  // Side away from the workspace.
+  path.push('z');
+  this.svgBackground_.setAttribute('d', path.join(' '));
+};
+
 /**
  * Scroll the flyout to the top.
  */
@@ -363,18 +382,7 @@ Blockly.Flyout.prototype.hide = function() {
  */
 Blockly.Flyout.prototype.show = function(xmlList) {
   this.hide();
-  // Delete any blocks from a previous showing.
-  var blocks = this.workspace_.getTopBlocks(false);
-  for (var i = 0, block; block = blocks[i]; i++) {
-    if (block.workspace == this.workspace_) {
-      block.dispose(false, false);
-    }
-  }
-  // Delete any background buttons from a previous showing.
-  for (var i = 0, rect; rect = this.buttons_[i]; i++) {
-    goog.dom.removeNode(rect);
-  }
-  this.buttons_.length = 0;
+  this.clearOldBlocks_();
 
   if (xmlList == Blockly.Variables.NAME_TYPE) {
     // Special category for variables.
@@ -406,6 +414,38 @@ Blockly.Flyout.prototype.show = function(xmlList) {
     }
   }
 
+  this.layoutBlocks_(blocks, gaps, margin);
+
+  // IE 11 is an incompetant browser that fails to fire mouseout events.
+  // When the mouse is over the background, deselect all blocks.
+  var deselectAll = function(e) {
+    var blocks = this.workspace_.getTopBlocks(false);
+    for (var i = 0, block; block = blocks[i]; i++) {
+      block.removeSelect();
+    }
+  };
+  this.listeners_.push(Blockly.bindEvent_(this.svgBackground_, 'mouseover',
+      this, deselectAll));
+
+  this.width_ = 0;
+  this.reflow();
+
+  this.filterForCapacity_();
+
+  // Fire a resize event to update the flyout's scrollbar.
+  Blockly.fireUiEventNow(window, 'resize');
+  this.reflowWrapper_ = this.reflow.bind(this);
+  this.workspace_.addChangeListener(this.reflowWrapper_);
+};
+
+/**
+ * Lay out the blocks in the flyout.
+ * @param {!Array<Blockly.BlockSvg>} blocks The blocks to lay out.
+ * @param {!Array<number>} gaps The visible gaps between blocks.
+ * @param {number} margin The margin around the edges of the flyout.
+ * @private
+ */
+Blockly.Flyout.prototype.layoutBlocks_ = function(blocks, gaps, margin) {
   // Lay out the blocks vertically.
   var cursorY = margin;
   for (var i = 0, block; block = blocks[i]; i++) {
@@ -434,47 +474,57 @@ Blockly.Flyout.prototype.show = function(xmlList) {
     block.flyoutRect_ = rect;
     this.buttons_[i] = rect;
 
-    if (this.autoClose) {
-      this.listeners_.push(Blockly.bindEvent_(root, 'mousedown', null,
-          this.createBlockFunc_(block)));
-      this.listeners_.push(Blockly.bindEvent_(rect, 'mousedown', null,
-          this.createBlockFunc_(block)));
-    } else {
-      this.listeners_.push(Blockly.bindEvent_(root, 'mousedown', null,
-          this.blockMouseDown_(block)));
-      this.listeners_.push(Blockly.bindEvent_(rect, 'mousedown', null,
-          this.blockMouseDown_(block)));
-    }
-    this.listeners_.push(Blockly.bindEvent_(root, 'mouseover', block,
-        block.addSelect));
-    this.listeners_.push(Blockly.bindEvent_(root, 'mouseout', block,
-        block.removeSelect));
-    this.listeners_.push(Blockly.bindEvent_(rect, 'mouseover', block,
-        block.addSelect));
-    this.listeners_.push(Blockly.bindEvent_(rect, 'mouseout', block,
-        block.removeSelect));
+    this.addBlockListeners_(root, block, rect);
   }
+};
 
-  // IE 11 is an incompetant browser that fails to fire mouseout events.
-  // When the mouse is over the background, deselect all blocks.
-  var deselectAll = function(e) {
-    var blocks = this.workspace_.getTopBlocks(false);
-    for (var i = 0, block; block = blocks[i]; i++) {
-      block.removeSelect();
+/**
+ * Delete blocks and background buttons from a previous showing of the flyout.
+ * @private
+ */
+Blockly.Flyout.prototype.clearOldBlocks_ = function() {
+  // Delete any blocks from a previous showing.
+  var blocks = this.workspace_.getTopBlocks(false);
+  for (var i = 0, block; block = blocks[i]; i++) {
+    if (block.workspace == this.workspace_) {
+      block.dispose(false, false);
     }
-  };
-  this.listeners_.push(Blockly.bindEvent_(this.svgBackground_, 'mouseover',
-      this, deselectAll));
+  }
+  // Delete any background buttons from a previous showing.
+  for (var j = 0, rect; rect = this.buttons_[j]; j++) {
+    goog.dom.removeNode(rect);
+  }
+  this.buttons_.length = 0;
+};
 
-  this.width_ = 0;
-  this.reflow();
-
-  this.filterForCapacity_();
-
-  // Fire a resize event to update the flyout's scrollbar.
-  Blockly.fireUiEventNow(window, 'resize');
-  this.reflowWrapper_ = this.reflow.bind(this);
-  this.workspace_.addChangeListener(this.reflowWrapper_);
+/**
+ * Add listeners to a block that has been added to the flyout.
+ * @param {!Element} root The root node of the SVG group the block is in.
+ * @param {!Blockly.Block} block The block to add listeners for.
+ * @param {!Element} rect The invisible rectangle under the block that acts as
+ *     a button for that block.
+ * @private
+ */
+Blockly.Flyout.prototype.addBlockListeners_ = function(root, block, rect) {
+  if (this.autoClose) {
+    this.listeners_.push(Blockly.bindEvent_(root, 'mousedown', null,
+        this.createBlockFunc_(block)));
+    this.listeners_.push(Blockly.bindEvent_(rect, 'mousedown', null,
+        this.createBlockFunc_(block)));
+  } else {
+    this.listeners_.push(Blockly.bindEvent_(root, 'mousedown', null,
+        this.blockMouseDown_(block)));
+    this.listeners_.push(Blockly.bindEvent_(rect, 'mousedown', null,
+        this.blockMouseDown_(block)));
+  }
+  this.listeners_.push(Blockly.bindEvent_(root, 'mouseover', block,
+      block.addSelect));
+  this.listeners_.push(Blockly.bindEvent_(root, 'mouseout', block,
+      block.removeSelect));
+  this.listeners_.push(Blockly.bindEvent_(rect, 'mouseover', block,
+      block.addSelect));
+  this.listeners_.push(Blockly.bindEvent_(rect, 'mouseout', block,
+      block.removeSelect));
 };
 
 /**
@@ -656,37 +706,7 @@ Blockly.Flyout.prototype.createBlockFunc_ = function(originBlock) {
       return;
     }
     Blockly.Events.disable();
-    // Create the new block by cloning the block in the flyout (via XML).
-    var xml = Blockly.Xml.blockToDom(originBlock);
-    var block = Blockly.Xml.domToBlock(xml, workspace);
-    // Place it in the same spot as the flyout copy.
-    var svgRootOld = originBlock.getSvgRoot();
-    if (!svgRootOld) {
-      throw 'originBlock is not rendered.';
-    }
-    var xyOld = Blockly.getSvgXY_(svgRootOld, workspace);
-    // Scale the scroll (getSvgXY_ did not do this).
-    if (flyout.RTL) {
-      var width = workspace.getMetrics().viewWidth - flyout.width_;
-      xyOld.x += width / workspace.scale - width;
-    } else {
-      xyOld.x += flyout.workspace_.scrollX / flyout.workspace_.scale -
-          flyout.workspace_.scrollX;
-    }
-    xyOld.y += flyout.workspace_.scrollY / flyout.workspace_.scale -
-        flyout.workspace_.scrollY;
-    var svgRootNew = block.getSvgRoot();
-    if (!svgRootNew) {
-      throw 'block is not rendered.';
-    }
-    var xyNew = Blockly.getSvgXY_(svgRootNew, workspace);
-    // Scale the scroll (getSvgXY_ did not do this).
-    xyNew.x += workspace.scrollX / workspace.scale - workspace.scrollX;
-    xyNew.y += workspace.scrollY / workspace.scale - workspace.scrollY;
-    if (workspace.toolbox_ && !workspace.scrollbar) {
-      xyNew.x += workspace.toolbox_.width / workspace.scale;
-    }
-    block.moveBy(xyOld.x - xyNew.x, xyOld.y - xyNew.y);
+    var block = flyout.placeNewBlock_(originBlock, workspace);
     Blockly.Events.enable();
     if (Blockly.Events.isEnabled()) {
       Blockly.Events.setGroup(true);
@@ -704,6 +724,48 @@ Blockly.Flyout.prototype.createBlockFunc_ = function(originBlock) {
   };
 };
 
+/**
+ * Copy a block from the flyout to the workspace and position it correctly.
+ * @param {!Blockly.Block} originBlock The flyout block to copy.
+ * @param {!Blockly.Workspace} workspace The main workspace.
+ * @return {!Blockly.Block} The new block in the main workspace.
+ * @private
+ */
+Blockly.Flyout.prototype.placeNewBlock_ = function(originBlock, workspace) {
+  // Create the new block by cloning the block in the flyout (via XML).
+  var xml = Blockly.Xml.blockToDom(originBlock);
+  var block = Blockly.Xml.domToBlock(xml, workspace);
+  // Place it in the same spot as the flyout copy.
+  var svgRootOld = originBlock.getSvgRoot();
+  if (!svgRootOld) {
+    throw 'originBlock is not rendered.';
+  }
+  var xyOld = Blockly.getSvgXY_(svgRootOld, workspace);
+  // Scale the scroll (getSvgXY_ did not do this).
+  if (this.RTL) {
+    var width = workspace.getMetrics().viewWidth - this.width_;
+    xyOld.x += width / workspace.scale - width;
+  } else {
+    xyOld.x += this.workspace_.scrollX / this.workspace_.scale -
+        this.workspace_.scrollX;
+  }
+  xyOld.y += this.workspace_.scrollY / this.workspace_.scale -
+      this.workspace_.scrollY;
+  var svgRootNew = block.getSvgRoot();
+  if (!svgRootNew) {
+    throw 'block is not rendered.';
+  }
+  var xyNew = Blockly.getSvgXY_(svgRootNew, workspace);
+  // Scale the scroll (getSvgXY_ did not do this).
+  xyNew.x += workspace.scrollX / workspace.scale - workspace.scrollX;
+  xyNew.y += workspace.scrollY / workspace.scale - workspace.scrollY;
+  if (workspace.toolbox_ && !workspace.scrollbar) {
+    xyNew.x += workspace.toolbox_.width / workspace.scale;
+  }
+  block.moveBy(xyOld.x - xyNew.x, xyOld.y - xyNew.y);
+  return block;
+};
+
 /**
  * Filter the blocks on the flyout to disable the ones that are above the
  * capacity limit.

From 703ac981dab8020aa4d0410566616d28d349ac56 Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Wed, 20 Apr 2016 16:44:13 -0700
Subject: [PATCH 09/12] Routine recompile.

---
 blockly_compressed.js   | 689 ++++++++++++++++++++--------------------
 blockly_uncompressed.js |   8 +-
 core/flyout.js          |   2 +-
 3 files changed, 349 insertions(+), 350 deletions(-)

diff --git a/blockly_compressed.js b/blockly_compressed.js
index 56202c9fe..9f68ad4c7 100644
--- a/blockly_compressed.js
+++ b/blockly_compressed.js
@@ -8,8 +8,8 @@ goog.VALID_MODULE_RE_=/^[a-zA-Z_$][a-zA-Z0-9._$]*$/;goog.module=function(a){if(!
 goog.module.get=function(a){return goog.module.getInternal_(a)};goog.module.getInternal_=function(a){if(!COMPILED)return goog.isProvided_(a)?a in goog.loadedModules_?goog.loadedModules_[a]:goog.getObjectByName(a):null};goog.moduleLoaderState_=null;goog.isInModuleLoader_=function(){return null!=goog.moduleLoaderState_};
 goog.module.declareLegacyNamespace=function(){if(!COMPILED&&!goog.isInModuleLoader_())throw Error("goog.module.declareLegacyNamespace must be called from within a goog.module");if(!COMPILED&&!goog.moduleLoaderState_.moduleName)throw Error("goog.module must be called prior to goog.module.declareLegacyNamespace.");goog.moduleLoaderState_.declareLegacyNamespace=!0};
 goog.setTestOnly=function(a){if(goog.DISALLOW_TEST_ONLY_CODE)throw a=a||"",Error("Importing test-only code into non-debug environment"+(a?": "+a:"."));};goog.forwardDeclare=function(a){};COMPILED||(goog.isProvided_=function(a){return a in goog.loadedModules_||!goog.implicitNamespaces_[a]&&goog.isDefAndNotNull(goog.getObjectByName(a))},goog.implicitNamespaces_={"goog.module":!0});
-goog.getObjectByName=function(a,b){for(var c=a.split("."),d=b||goog.global,f;f=c.shift();)if(goog.isDefAndNotNull(d[f]))d=d[f];else return null;return d};goog.globalize=function(a,b){var c=b||goog.global,d;for(d in a)c[d]=a[d]};
-goog.addDependency=function(a,b,c,d){if(goog.DEPENDENCIES_ENABLED){var f;a=a.replace(/\\/g,"/");var g=goog.dependencies_;d&&"boolean"!==typeof d||(d=d?{module:"goog"}:{});for(var h=0;f=b[h];h++)g.nameToPath[f]=a,g.pathIsModule[a]="goog"==d.module;for(d=0;b=c[d];d++)a in g.requires||(g.requires[a]={}),g.requires[a][b]=!0}};goog.ENABLE_DEBUG_LOADER=!0;goog.logToConsole_=function(a){goog.global.console&&goog.global.console.error(a)};
+goog.getObjectByName=function(a,b){for(var c=a.split("."),d=b||goog.global,e;e=c.shift();)if(goog.isDefAndNotNull(d[e]))d=d[e];else return null;return d};goog.globalize=function(a,b){var c=b||goog.global,d;for(d in a)c[d]=a[d]};
+goog.addDependency=function(a,b,c,d){if(goog.DEPENDENCIES_ENABLED){var e;a=a.replace(/\\/g,"/");var f=goog.dependencies_;d&&"boolean"!==typeof d||(d=d?{module:"goog"}:{});for(var g=0;e=b[g];g++)f.nameToPath[e]=a,f.pathIsModule[a]="goog"==d.module;for(d=0;b=c[d];d++)a in f.requires||(f.requires[a]={}),f.requires[a][b]=!0}};goog.ENABLE_DEBUG_LOADER=!0;goog.logToConsole_=function(a){goog.global.console&&goog.global.console.error(a)};
 goog.require=function(a){if(!COMPILED){goog.ENABLE_DEBUG_LOADER&&goog.IS_OLD_IE_&&goog.maybeProcessDeferredDep_(a);if(goog.isProvided_(a))return goog.isInModuleLoader_()?goog.module.getInternal_(a):null;if(goog.ENABLE_DEBUG_LOADER){var b=goog.getPathFromDeps_(a);if(b)return goog.writeScripts_(b),null}a="goog.require could not find: "+a;goog.logToConsole_(a);throw Error(a);}};goog.basePath="";goog.nullFunction=function(){};
 goog.abstractMethod=function(){throw Error("unimplemented abstract method");};goog.addSingletonGetter=function(a){a.getInstance=function(){if(a.instance_)return a.instance_;goog.DEBUG&&(goog.instantiatedSingletons_[goog.instantiatedSingletons_.length]=a);return a.instance_=new a}};goog.instantiatedSingletons_=[];goog.LOAD_MODULE_USING_EVAL=!0;goog.SEAL_MODULE_EXPORTS=goog.DEBUG;goog.loadedModules_={};goog.DEPENDENCIES_ENABLED=!COMPILED&&goog.ENABLE_DEBUG_LOADER;
 goog.DEPENDENCIES_ENABLED&&(goog.dependencies_={pathIsModule:{},nameToPath:{},requires:{},visited:{},written:{},deferred:{}},goog.inHtmlDocument_=function(){var a=goog.global.document;return null!=a&&"write"in a},goog.findBasePath_=function(){if(goog.isDef(goog.global.CLOSURE_BASE_PATH))goog.basePath=goog.global.CLOSURE_BASE_PATH;else if(goog.inHtmlDocument_())for(var a=goog.global.document.getElementsByTagName("SCRIPT"),b=a.length-1;0<=b;--b){var c=a[b].src,d=c.lastIndexOf("?"),d=-1==d?c.length:
@@ -19,8 +19,8 @@ goog.maybeProcessDeferredPath_(goog.basePath+a))},goog.isDeferredModule_=functio
 goog.dependencies_.deferred[a];delete goog.dependencies_.deferred[a];goog.globalEval(b)}},goog.loadModuleFromUrl=function(a){goog.retrieveAndExecModule_(a)},goog.loadModule=function(a){var b=goog.moduleLoaderState_;try{goog.moduleLoaderState_={moduleName:void 0,declareLegacyNamespace:!1};var c;if(goog.isFunction(a))c=a.call(goog.global,{});else if(goog.isString(a))c=goog.loadModuleFromSource_.call(goog.global,a);else throw Error("Invalid module definition");var d=goog.moduleLoaderState_.moduleName;
 if(!goog.isString(d)||!d)throw Error('Invalid module name "'+d+'"');goog.moduleLoaderState_.declareLegacyNamespace?goog.constructNamespace_(d,c):goog.SEAL_MODULE_EXPORTS&&Object.seal&&Object.seal(c);goog.loadedModules_[d]=c}finally{goog.moduleLoaderState_=b}},goog.loadModuleFromSource_=function(a){eval(a);return{}},goog.writeScriptSrcNode_=function(a){goog.global.document.write('<script type="text/javascript" src="'+a+'">\x3c/script>')},goog.appendScriptSrcNode_=function(a){var b=goog.global.document,
 c=b.createElement("script");c.type="text/javascript";c.src=a;c.defer=!1;c.async=!1;b.head.appendChild(c)},goog.writeScriptTag_=function(a,b){if(goog.inHtmlDocument_()){var c=goog.global.document;if(!goog.ENABLE_CHROME_APP_SAFE_SCRIPT_LOADING&&"complete"==c.readyState){if(/\bdeps.js$/.test(a))return!1;throw Error('Cannot write "'+a+'" after document load');}var d=goog.IS_OLD_IE_;void 0===b?d?(d=" onreadystatechange='goog.onScriptLoad_(this, "+ ++goog.lastNonModuleScriptIndex_+")' ",c.write('<script type="text/javascript" src="'+
-a+'"'+d+">\x3c/script>")):goog.ENABLE_CHROME_APP_SAFE_SCRIPT_LOADING?goog.appendScriptSrcNode_(a):goog.writeScriptSrcNode_(a):c.write('<script type="text/javascript">'+b+"\x3c/script>");return!0}return!1},goog.lastNonModuleScriptIndex_=0,goog.onScriptLoad_=function(a,b){"complete"==a.readyState&&goog.lastNonModuleScriptIndex_==b&&goog.loadQueuedModules_();return!0},goog.writeScripts_=function(a){function b(a){if(!(a in f.written||a in f.visited)){f.visited[a]=!0;if(a in f.requires)for(var g in f.requires[a])if(!goog.isProvided_(g))if(g in
-f.nameToPath)b(f.nameToPath[g]);else throw Error("Undefined nameToPath for "+g);a in d||(d[a]=!0,c.push(a))}}var c=[],d={},f=goog.dependencies_;b(a);for(a=0;a<c.length;a++){var g=c[a];goog.dependencies_.written[g]=!0}var h=goog.moduleLoaderState_;goog.moduleLoaderState_=null;for(a=0;a<c.length;a++)if(g=c[a])f.pathIsModule[g]?goog.importModule_(goog.basePath+g):goog.importScript_(goog.basePath+g);else throw goog.moduleLoaderState_=h,Error("Undefined script input");goog.moduleLoaderState_=h},goog.getPathFromDeps_=
+a+'"'+d+">\x3c/script>")):goog.ENABLE_CHROME_APP_SAFE_SCRIPT_LOADING?goog.appendScriptSrcNode_(a):goog.writeScriptSrcNode_(a):c.write('<script type="text/javascript">'+b+"\x3c/script>");return!0}return!1},goog.lastNonModuleScriptIndex_=0,goog.onScriptLoad_=function(a,b){"complete"==a.readyState&&goog.lastNonModuleScriptIndex_==b&&goog.loadQueuedModules_();return!0},goog.writeScripts_=function(a){function b(a){if(!(a in e.written||a in e.visited)){e.visited[a]=!0;if(a in e.requires)for(var f in e.requires[a])if(!goog.isProvided_(f))if(f in
+e.nameToPath)b(e.nameToPath[f]);else throw Error("Undefined nameToPath for "+f);a in d||(d[a]=!0,c.push(a))}}var c=[],d={},e=goog.dependencies_;b(a);for(a=0;a<c.length;a++){var f=c[a];goog.dependencies_.written[f]=!0}var g=goog.moduleLoaderState_;goog.moduleLoaderState_=null;for(a=0;a<c.length;a++)if(f=c[a])e.pathIsModule[f]?goog.importModule_(goog.basePath+f):goog.importScript_(goog.basePath+f);else throw goog.moduleLoaderState_=g,Error("Undefined script input");goog.moduleLoaderState_=g},goog.getPathFromDeps_=
 function(a){return a in goog.dependencies_.nameToPath?goog.dependencies_.nameToPath[a]:null},goog.findBasePath_(),goog.global.CLOSURE_NO_DEPS||goog.importScript_(goog.basePath+"deps.js"));goog.normalizePath_=function(a){a=a.split("/");for(var b=0;b<a.length;)"."==a[b]?a.splice(b,1):b&&".."==a[b]&&a[b-1]&&".."!=a[b-1]?a.splice(--b,2):b++;return a.join("/")};
 goog.loadFileSync_=function(a){if(goog.global.CLOSURE_LOAD_FILE_SYNC)return goog.global.CLOSURE_LOAD_FILE_SYNC(a);var b=new goog.global.XMLHttpRequest;b.open("get",a,!1);b.send();return b.responseText};
 goog.retrieveAndExecModule_=function(a){if(!COMPILED){var b=a;a=goog.normalizePath_(a);var c=goog.global.CLOSURE_IMPORT_SCRIPT||goog.writeScriptTag_,d=goog.loadFileSync_(a);if(null!=d)d=goog.wrapModule_(a,d),goog.IS_OLD_IE_?(goog.dependencies_.deferred[b]=d,goog.queuedModules_.push(b)):c(a,d);else throw Error("load of "+a+"failed");}};
@@ -33,39 +33,39 @@ goog.bind=function(a,b,c){Function.prototype.bind&&-1!=Function.prototype.bind.t
 goog.globalEval=function(a){if(goog.global.execScript)goog.global.execScript(a,"JavaScript");else if(goog.global.eval){if(null==goog.evalWorksForGlobals_)if(goog.global.eval("var _evalTest_ = 1;"),"undefined"!=typeof goog.global._evalTest_){try{delete goog.global._evalTest_}catch(d){}goog.evalWorksForGlobals_=!0}else goog.evalWorksForGlobals_=!1;if(goog.evalWorksForGlobals_)goog.global.eval(a);else{var b=goog.global.document,c=b.createElement("SCRIPT");c.type="text/javascript";c.defer=!1;c.appendChild(b.createTextNode(a));
 b.body.appendChild(c);b.body.removeChild(c)}}else throw Error("goog.globalEval not available");};goog.evalWorksForGlobals_=null;goog.getCssName=function(a,b){var c=function(a){return goog.cssNameMapping_[a]||a},d=function(a){a=a.split("-");for(var b=[],d=0;d<a.length;d++)b.push(c(a[d]));return b.join("-")},d=goog.cssNameMapping_?"BY_WHOLE"==goog.cssNameMappingStyle_?c:d:function(a){return a};return b?a+"-"+d(b):d(a)};
 goog.setCssNameMapping=function(a,b){goog.cssNameMapping_=a;goog.cssNameMappingStyle_=b};!COMPILED&&goog.global.CLOSURE_CSS_NAME_MAPPING&&(goog.cssNameMapping_=goog.global.CLOSURE_CSS_NAME_MAPPING);goog.getMsg=function(a,b){b&&(a=a.replace(/\{\$([^}]+)}/g,function(a,d){return null!=b&&d in b?b[d]:a}));return a};goog.getMsgWithFallback=function(a,b){return a};goog.exportSymbol=function(a,b,c){goog.exportPath_(a,b,c)};goog.exportProperty=function(a,b,c){a[b]=c};
-goog.inherits=function(a,b){function c(){}c.prototype=b.prototype;a.superClass_=b.prototype;a.prototype=new c;a.prototype.constructor=a;a.base=function(a,c,g){for(var h=Array(arguments.length-2),k=2;k<arguments.length;k++)h[k-2]=arguments[k];return b.prototype[c].apply(a,h)}};
-goog.base=function(a,b,c){var d=arguments.callee.caller;if(goog.STRICT_MODE_COMPATIBLE||goog.DEBUG&&!d)throw Error("arguments.caller not defined.  goog.base() cannot be used with strict mode code. See http://www.ecma-international.org/ecma-262/5.1/#sec-C");if(d.superClass_){for(var f=Array(arguments.length-1),g=1;g<arguments.length;g++)f[g-1]=arguments[g];return d.superClass_.constructor.apply(a,f)}f=Array(arguments.length-2);for(g=2;g<arguments.length;g++)f[g-2]=arguments[g];for(var g=!1,h=a.constructor;h;h=
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+goog.inherits=function(a,b){function c(){}c.prototype=b.prototype;a.superClass_=b.prototype;a.prototype=new c;a.prototype.constructor=a;a.base=function(a,c,f){for(var g=Array(arguments.length-2),h=2;h<arguments.length;h++)g[h-2]=arguments[h];return b.prototype[c].apply(a,g)}};
+goog.base=function(a,b,c){var d=arguments.callee.caller;if(goog.STRICT_MODE_COMPATIBLE||goog.DEBUG&&!d)throw Error("arguments.caller not defined.  goog.base() cannot be used with strict mode code. See http://www.ecma-international.org/ecma-262/5.1/#sec-C");if(d.superClass_){for(var e=Array(arguments.length-1),f=1;f<arguments.length;f++)e[f-1]=arguments[f];return d.superClass_.constructor.apply(a,e)}e=Array(arguments.length-2);for(f=2;f<arguments.length;f++)e[f-2]=arguments[f];for(var f=!1,g=a.constructor;g;g=
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-goog.string.caseInsensitiveEndsWith=function(a,b){return 0==goog.string.caseInsensitiveCompare(b,a.substr(a.length-b.length,b.length))};goog.string.caseInsensitiveEquals=function(a,b){return a.toLowerCase()==b.toLowerCase()};goog.string.subs=function(a,b){for(var c=a.split("%s"),d="",f=Array.prototype.slice.call(arguments,1);f.length&&1<c.length;)d+=c.shift()+f.shift();return d+c.join("%s")};goog.string.collapseWhitespace=function(a){return a.replace(/[\s\xa0]+/g," ").replace(/^\s+|\s+$/g,"")};
+goog.string.caseInsensitiveEndsWith=function(a,b){return 0==goog.string.caseInsensitiveCompare(b,a.substr(a.length-b.length,b.length))};goog.string.caseInsensitiveEquals=function(a,b){return a.toLowerCase()==b.toLowerCase()};goog.string.subs=function(a,b){for(var c=a.split("%s"),d="",e=Array.prototype.slice.call(arguments,1);e.length&&1<c.length;)d+=c.shift()+e.shift();return d+c.join("%s")};goog.string.collapseWhitespace=function(a){return a.replace(/[\s\xa0]+/g," ").replace(/^\s+|\s+$/g,"")};
 goog.string.isEmptyOrWhitespace=function(a){return/^[\s\xa0]*$/.test(a)};goog.string.isEmptyString=function(a){return 0==a.length};goog.string.isEmpty=goog.string.isEmptyOrWhitespace;goog.string.isEmptyOrWhitespaceSafe=function(a){return goog.string.isEmptyOrWhitespace(goog.string.makeSafe(a))};goog.string.isEmptySafe=goog.string.isEmptyOrWhitespaceSafe;goog.string.isBreakingWhitespace=function(a){return!/[^\t\n\r ]/.test(a)};goog.string.isAlpha=function(a){return!/[^a-zA-Z]/.test(a)};
 goog.string.isNumeric=function(a){return!/[^0-9]/.test(a)};goog.string.isAlphaNumeric=function(a){return!/[^a-zA-Z0-9]/.test(a)};goog.string.isSpace=function(a){return" "==a};goog.string.isUnicodeChar=function(a){return 1==a.length&&" "<=a&&"~">=a||"\u0080"<=a&&"\ufffd">=a};goog.string.stripNewlines=function(a){return a.replace(/(\r\n|\r|\n)+/g," ")};goog.string.canonicalizeNewlines=function(a){return a.replace(/(\r\n|\r|\n)/g,"\n")};
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-goog.string.numberAwareCompare_=function(a,b,c){if(a==b)return 0;if(!a)return-1;if(!b)return 1;for(var d=a.toLowerCase().match(c),f=b.toLowerCase().match(c),g=Math.min(d.length,f.length),h=0;h<g;h++){c=d[h];var k=f[h];if(c!=k)return a=parseInt(c,10),!isNaN(a)&&(b=parseInt(k,10),!isNaN(b)&&a-b)?a-b:c<k?-1:1}return d.length!=f.length?d.length-f.length:a<b?-1:1};goog.string.intAwareCompare=function(a,b){return goog.string.numberAwareCompare_(a,b,/\d+|\D+/g)};
+goog.string.numberAwareCompare_=function(a,b,c){if(a==b)return 0;if(!a)return-1;if(!b)return 1;for(var d=a.toLowerCase().match(c),e=b.toLowerCase().match(c),f=Math.min(d.length,e.length),g=0;g<f;g++){c=d[g];var h=e[g];if(c!=h)return a=parseInt(c,10),!isNaN(a)&&(b=parseInt(h,10),!isNaN(b)&&a-b)?a-b:c<h?-1:1}return d.length!=e.length?d.length-e.length:a<b?-1:1};goog.string.intAwareCompare=function(a,b){return goog.string.numberAwareCompare_(a,b,/\d+|\D+/g)};
 goog.string.floatAwareCompare=function(a,b){return goog.string.numberAwareCompare_(a,b,/\d+|\.\d+|\D+/g)};goog.string.numerateCompare=goog.string.floatAwareCompare;goog.string.urlEncode=function(a){return encodeURIComponent(String(a))};goog.string.urlDecode=function(a){return decodeURIComponent(a.replace(/\+/g," "))};goog.string.newLineToBr=function(a,b){return a.replace(/(\r\n|\r|\n)/g,b?"<br />":"<br>")};
 goog.string.htmlEscape=function(a,b){if(b)a=a.replace(goog.string.AMP_RE_,"&amp;").replace(goog.string.LT_RE_,"&lt;").replace(goog.string.GT_RE_,"&gt;").replace(goog.string.QUOT_RE_,"&quot;").replace(goog.string.SINGLE_QUOTE_RE_,"&#39;").replace(goog.string.NULL_RE_,"&#0;"),goog.string.DETECT_DOUBLE_ESCAPING&&(a=a.replace(goog.string.E_RE_,"&#101;"));else{if(!goog.string.ALL_RE_.test(a))return a;-1!=a.indexOf("&")&&(a=a.replace(goog.string.AMP_RE_,"&amp;"));-1!=a.indexOf("<")&&(a=a.replace(goog.string.LT_RE_,
 "&lt;"));-1!=a.indexOf(">")&&(a=a.replace(goog.string.GT_RE_,"&gt;"));-1!=a.indexOf('"')&&(a=a.replace(goog.string.QUOT_RE_,"&quot;"));-1!=a.indexOf("'")&&(a=a.replace(goog.string.SINGLE_QUOTE_RE_,"&#39;"));-1!=a.indexOf("\x00")&&(a=a.replace(goog.string.NULL_RE_,"&#0;"));goog.string.DETECT_DOUBLE_ESCAPING&&-1!=a.indexOf("e")&&(a=a.replace(goog.string.E_RE_,"&#101;"))}return a};goog.string.AMP_RE_=/&/g;goog.string.LT_RE_=/</g;goog.string.GT_RE_=/>/g;goog.string.QUOT_RE_=/"/g;
 goog.string.SINGLE_QUOTE_RE_=/'/g;goog.string.NULL_RE_=/\x00/g;goog.string.E_RE_=/e/g;goog.string.ALL_RE_=goog.string.DETECT_DOUBLE_ESCAPING?/[\x00&<>"'e]/:/[\x00&<>"']/;goog.string.unescapeEntities=function(a){return goog.string.contains(a,"&")?!goog.string.FORCE_NON_DOM_HTML_UNESCAPING&&"document"in goog.global?goog.string.unescapeEntitiesUsingDom_(a):goog.string.unescapePureXmlEntities_(a):a};
 goog.string.unescapeEntitiesWithDocument=function(a,b){return goog.string.contains(a,"&")?goog.string.unescapeEntitiesUsingDom_(a,b):a};
-goog.string.unescapeEntitiesUsingDom_=function(a,b){var c={"&amp;":"&","&lt;":"<","&gt;":">","&quot;":'"'},d;d=b?b.createElement("div"):goog.global.document.createElement("div");return a.replace(goog.string.HTML_ENTITY_PATTERN_,function(a,b){var h=c[a];if(h)return h;if("#"==b.charAt(0)){var k=Number("0"+b.substr(1));isNaN(k)||(h=String.fromCharCode(k))}h||(d.innerHTML=a+" ",h=d.firstChild.nodeValue.slice(0,-1));return c[a]=h})};
+goog.string.unescapeEntitiesUsingDom_=function(a,b){var c={"&amp;":"&","&lt;":"<","&gt;":">","&quot;":'"'},d;d=b?b.createElement("div"):goog.global.document.createElement("div");return a.replace(goog.string.HTML_ENTITY_PATTERN_,function(a,b){var g=c[a];if(g)return g;if("#"==b.charAt(0)){var h=Number("0"+b.substr(1));isNaN(h)||(g=String.fromCharCode(h))}g||(d.innerHTML=a+" ",g=d.firstChild.nodeValue.slice(0,-1));return c[a]=g})};
 goog.string.unescapePureXmlEntities_=function(a){return a.replace(/&([^;]+);/g,function(a,c){switch(c){case "amp":return"&";case "lt":return"<";case "gt":return">";case "quot":return'"';default:if("#"==c.charAt(0)){var d=Number("0"+c.substr(1));if(!isNaN(d))return String.fromCharCode(d)}return a}})};goog.string.HTML_ENTITY_PATTERN_=/&([^;\s<&]+);?/g;goog.string.whitespaceEscape=function(a,b){return goog.string.newLineToBr(a.replace(/  /g," &#160;"),b)};
-goog.string.preserveSpaces=function(a){return a.replace(/(^|[\n ]) /g,"$1"+goog.string.Unicode.NBSP)};goog.string.stripQuotes=function(a,b){for(var c=b.length,d=0;d<c;d++){var f=1==c?b:b.charAt(d);if(a.charAt(0)==f&&a.charAt(a.length-1)==f)return a.substring(1,a.length-1)}return a};goog.string.truncate=function(a,b,c){c&&(a=goog.string.unescapeEntities(a));a.length>b&&(a=a.substring(0,b-3)+"...");c&&(a=goog.string.htmlEscape(a));return a};
-goog.string.truncateMiddle=function(a,b,c,d){c&&(a=goog.string.unescapeEntities(a));if(d&&a.length>b){d>b&&(d=b);var f=a.length-d;a=a.substring(0,b-d)+"..."+a.substring(f)}else a.length>b&&(d=Math.floor(b/2),f=a.length-d,a=a.substring(0,d+b%2)+"..."+a.substring(f));c&&(a=goog.string.htmlEscape(a));return a};goog.string.specialEscapeChars_={"\x00":"\\0","\b":"\\b","\f":"\\f","\n":"\\n","\r":"\\r","\t":"\\t","\x0B":"\\x0B",'"':'\\"',"\\":"\\\\","<":"<"};goog.string.jsEscapeCache_={"'":"\\'"};
-goog.string.quote=function(a){a=String(a);for(var b=['"'],c=0;c<a.length;c++){var d=a.charAt(c),f=d.charCodeAt(0);b[c+1]=goog.string.specialEscapeChars_[d]||(31<f&&127>f?d:goog.string.escapeChar(d))}b.push('"');return b.join("")};goog.string.escapeString=function(a){for(var b=[],c=0;c<a.length;c++)b[c]=goog.string.escapeChar(a.charAt(c));return b.join("")};
+goog.string.preserveSpaces=function(a){return a.replace(/(^|[\n ]) /g,"$1"+goog.string.Unicode.NBSP)};goog.string.stripQuotes=function(a,b){for(var c=b.length,d=0;d<c;d++){var e=1==c?b:b.charAt(d);if(a.charAt(0)==e&&a.charAt(a.length-1)==e)return a.substring(1,a.length-1)}return a};goog.string.truncate=function(a,b,c){c&&(a=goog.string.unescapeEntities(a));a.length>b&&(a=a.substring(0,b-3)+"...");c&&(a=goog.string.htmlEscape(a));return a};
+goog.string.truncateMiddle=function(a,b,c,d){c&&(a=goog.string.unescapeEntities(a));if(d&&a.length>b){d>b&&(d=b);var e=a.length-d;a=a.substring(0,b-d)+"..."+a.substring(e)}else a.length>b&&(d=Math.floor(b/2),e=a.length-d,a=a.substring(0,d+b%2)+"..."+a.substring(e));c&&(a=goog.string.htmlEscape(a));return a};goog.string.specialEscapeChars_={"\x00":"\\0","\b":"\\b","\f":"\\f","\n":"\\n","\r":"\\r","\t":"\\t","\x0B":"\\x0B",'"':'\\"',"\\":"\\\\","<":"<"};goog.string.jsEscapeCache_={"'":"\\'"};
+goog.string.quote=function(a){a=String(a);for(var b=['"'],c=0;c<a.length;c++){var d=a.charAt(c),e=d.charCodeAt(0);b[c+1]=goog.string.specialEscapeChars_[d]||(31<e&&127>e?d:goog.string.escapeChar(d))}b.push('"');return b.join("")};goog.string.escapeString=function(a){for(var b=[],c=0;c<a.length;c++)b[c]=goog.string.escapeChar(a.charAt(c));return b.join("")};
 goog.string.escapeChar=function(a){if(a in goog.string.jsEscapeCache_)return goog.string.jsEscapeCache_[a];if(a in goog.string.specialEscapeChars_)return goog.string.jsEscapeCache_[a]=goog.string.specialEscapeChars_[a];var b=a,c=a.charCodeAt(0);if(31<c&&127>c)b=a;else{if(256>c){if(b="\\x",16>c||256<c)b+="0"}else b="\\u",4096>c&&(b+="0");b+=c.toString(16).toUpperCase()}return goog.string.jsEscapeCache_[a]=b};goog.string.contains=function(a,b){return-1!=a.indexOf(b)};
 goog.string.caseInsensitiveContains=function(a,b){return goog.string.contains(a.toLowerCase(),b.toLowerCase())};goog.string.countOf=function(a,b){return a&&b?a.split(b).length-1:0};goog.string.removeAt=function(a,b,c){var d=a;0<=b&&b<a.length&&0<c&&(d=a.substr(0,b)+a.substr(b+c,a.length-b-c));return d};goog.string.remove=function(a,b){var c=new RegExp(goog.string.regExpEscape(b),"");return a.replace(c,"")};
 goog.string.removeAll=function(a,b){var c=new RegExp(goog.string.regExpEscape(b),"g");return a.replace(c,"")};goog.string.regExpEscape=function(a){return String(a).replace(/([-()\[\]{}+?*.$\^|,:#<!\\])/g,"\\$1").replace(/\x08/g,"\\x08")};goog.string.repeat=String.prototype.repeat?function(a,b){return a.repeat(b)}:function(a,b){return Array(b+1).join(a)};
 goog.string.padNumber=function(a,b,c){a=goog.isDef(c)?a.toFixed(c):String(a);c=a.indexOf(".");-1==c&&(c=a.length);return goog.string.repeat("0",Math.max(0,b-c))+a};goog.string.makeSafe=function(a){return null==a?"":String(a)};goog.string.buildString=function(a){return Array.prototype.join.call(arguments,"")};goog.string.getRandomString=function(){return Math.floor(2147483648*Math.random()).toString(36)+Math.abs(Math.floor(2147483648*Math.random())^goog.now()).toString(36)};
-goog.string.compareVersions=function(a,b){for(var c=0,d=goog.string.trim(String(a)).split("."),f=goog.string.trim(String(b)).split("."),g=Math.max(d.length,f.length),h=0;0==c&&h<g;h++){var k=d[h]||"",l=f[h]||"",m=RegExp("(\\d*)(\\D*)","g"),r=RegExp("(\\d*)(\\D*)","g");do{var n=m.exec(k)||["","",""],q=r.exec(l)||["","",""];if(0==n[0].length&&0==q[0].length)break;var c=0==n[1].length?0:parseInt(n[1],10),p=0==q[1].length?0:parseInt(q[1],10),c=goog.string.compareElements_(c,p)||goog.string.compareElements_(0==
-n[2].length,0==q[2].length)||goog.string.compareElements_(n[2],q[2])}while(0==c)}return c};goog.string.compareElements_=function(a,b){return a<b?-1:a>b?1:0};goog.string.hashCode=function(a){for(var b=0,c=0;c<a.length;++c)b=31*b+a.charCodeAt(c)>>>0;return b};goog.string.uniqueStringCounter_=2147483648*Math.random()|0;goog.string.createUniqueString=function(){return"goog_"+goog.string.uniqueStringCounter_++};
+goog.string.compareVersions=function(a,b){for(var c=0,d=goog.string.trim(String(a)).split("."),e=goog.string.trim(String(b)).split("."),f=Math.max(d.length,e.length),g=0;0==c&&g<f;g++){var h=d[g]||"",k=e[g]||"",l=RegExp("(\\d*)(\\D*)","g"),q=RegExp("(\\d*)(\\D*)","g");do{var m=l.exec(h)||["","",""],p=q.exec(k)||["","",""];if(0==m[0].length&&0==p[0].length)break;var c=0==m[1].length?0:parseInt(m[1],10),n=0==p[1].length?0:parseInt(p[1],10),c=goog.string.compareElements_(c,n)||goog.string.compareElements_(0==
+m[2].length,0==p[2].length)||goog.string.compareElements_(m[2],p[2])}while(0==c)}return c};goog.string.compareElements_=function(a,b){return a<b?-1:a>b?1:0};goog.string.hashCode=function(a){for(var b=0,c=0;c<a.length;++c)b=31*b+a.charCodeAt(c)>>>0;return b};goog.string.uniqueStringCounter_=2147483648*Math.random()|0;goog.string.createUniqueString=function(){return"goog_"+goog.string.uniqueStringCounter_++};
 goog.string.toNumber=function(a){var b=Number(a);return 0==b&&goog.string.isEmptyOrWhitespace(a)?NaN:b};goog.string.isLowerCamelCase=function(a){return/^[a-z]+([A-Z][a-z]*)*$/.test(a)};goog.string.isUpperCamelCase=function(a){return/^([A-Z][a-z]*)+$/.test(a)};goog.string.toCamelCase=function(a){return String(a).replace(/\-([a-z])/g,function(a,c){return c.toUpperCase()})};goog.string.toSelectorCase=function(a){return String(a).replace(/([A-Z])/g,"-$1").toLowerCase()};
 goog.string.toTitleCase=function(a,b){var c=goog.isString(b)?goog.string.regExpEscape(b):"\\s";return a.replace(new RegExp("(^"+(c?"|["+c+"]+":"")+")([a-z])","g"),function(a,b,c){return b+c.toUpperCase()})};goog.string.capitalize=function(a){return String(a.charAt(0)).toUpperCase()+String(a.substr(1)).toLowerCase()};goog.string.parseInt=function(a){isFinite(a)&&(a=String(a));return goog.isString(a)?/^\s*-?0x/i.test(a)?parseInt(a,16):parseInt(a,10):NaN};
-goog.string.splitLimit=function(a,b,c){a=a.split(b);for(var d=[];0<c&&a.length;)d.push(a.shift()),c--;a.length&&d.push(a.join(b));return d};goog.string.lastComponent=function(a,b){if(b)"string"==typeof b&&(b=[b]);else return a;for(var c=-1,d=0;d<b.length;d++)if(""!=b[d]){var f=a.lastIndexOf(b[d]);f>c&&(c=f)}return-1==c?a:a.slice(c+1)};
-goog.string.editDistance=function(a,b){var c=[],d=[];if(a==b)return 0;if(!a.length||!b.length)return Math.max(a.length,b.length);for(var f=0;f<b.length+1;f++)c[f]=f;for(f=0;f<a.length;f++){d[0]=f+1;for(var g=0;g<b.length;g++)d[g+1]=Math.min(d[g]+1,c[g+1]+1,c[g]+Number(a[f]!=b[g]));for(g=0;g<c.length;g++)c[g]=d[g]}return d[b.length]};goog.asserts={};goog.asserts.ENABLE_ASSERTS=goog.DEBUG;goog.asserts.AssertionError=function(a,b){b.unshift(a);goog.debug.Error.call(this,goog.string.subs.apply(null,b));b.shift();this.messagePattern=a};goog.inherits(goog.asserts.AssertionError,goog.debug.Error);goog.asserts.AssertionError.prototype.name="AssertionError";goog.asserts.DEFAULT_ERROR_HANDLER=function(a){throw a;};goog.asserts.errorHandler_=goog.asserts.DEFAULT_ERROR_HANDLER;
-goog.asserts.doAssertFailure_=function(a,b,c,d){var f="Assertion failed";if(c)var f=f+(": "+c),g=d;else a&&(f+=": "+a,g=b);a=new goog.asserts.AssertionError(""+f,g||[]);goog.asserts.errorHandler_(a)};goog.asserts.setErrorHandler=function(a){goog.asserts.ENABLE_ASSERTS&&(goog.asserts.errorHandler_=a)};goog.asserts.assert=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!a&&goog.asserts.doAssertFailure_("",null,b,Array.prototype.slice.call(arguments,2));return a};
+goog.string.splitLimit=function(a,b,c){a=a.split(b);for(var d=[];0<c&&a.length;)d.push(a.shift()),c--;a.length&&d.push(a.join(b));return d};goog.string.lastComponent=function(a,b){if(b)"string"==typeof b&&(b=[b]);else return a;for(var c=-1,d=0;d<b.length;d++)if(""!=b[d]){var e=a.lastIndexOf(b[d]);e>c&&(c=e)}return-1==c?a:a.slice(c+1)};
+goog.string.editDistance=function(a,b){var c=[],d=[];if(a==b)return 0;if(!a.length||!b.length)return Math.max(a.length,b.length);for(var e=0;e<b.length+1;e++)c[e]=e;for(e=0;e<a.length;e++){d[0]=e+1;for(var f=0;f<b.length;f++)d[f+1]=Math.min(d[f]+1,c[f+1]+1,c[f]+Number(a[e]!=b[f]));for(f=0;f<c.length;f++)c[f]=d[f]}return d[b.length]};goog.asserts={};goog.asserts.ENABLE_ASSERTS=goog.DEBUG;goog.asserts.AssertionError=function(a,b){b.unshift(a);goog.debug.Error.call(this,goog.string.subs.apply(null,b));b.shift();this.messagePattern=a};goog.inherits(goog.asserts.AssertionError,goog.debug.Error);goog.asserts.AssertionError.prototype.name="AssertionError";goog.asserts.DEFAULT_ERROR_HANDLER=function(a){throw a;};goog.asserts.errorHandler_=goog.asserts.DEFAULT_ERROR_HANDLER;
+goog.asserts.doAssertFailure_=function(a,b,c,d){var e="Assertion failed";if(c)var e=e+(": "+c),f=d;else a&&(e+=": "+a,f=b);a=new goog.asserts.AssertionError(""+e,f||[]);goog.asserts.errorHandler_(a)};goog.asserts.setErrorHandler=function(a){goog.asserts.ENABLE_ASSERTS&&(goog.asserts.errorHandler_=a)};goog.asserts.assert=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!a&&goog.asserts.doAssertFailure_("",null,b,Array.prototype.slice.call(arguments,2));return a};
 goog.asserts.fail=function(a,b){goog.asserts.ENABLE_ASSERTS&&goog.asserts.errorHandler_(new goog.asserts.AssertionError("Failure"+(a?": "+a:""),Array.prototype.slice.call(arguments,1)))};goog.asserts.assertNumber=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!goog.isNumber(a)&&goog.asserts.doAssertFailure_("Expected number but got %s: %s.",[goog.typeOf(a),a],b,Array.prototype.slice.call(arguments,2));return a};
 goog.asserts.assertString=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!goog.isString(a)&&goog.asserts.doAssertFailure_("Expected string but got %s: %s.",[goog.typeOf(a),a],b,Array.prototype.slice.call(arguments,2));return a};goog.asserts.assertFunction=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!goog.isFunction(a)&&goog.asserts.doAssertFailure_("Expected function but got %s: %s.",[goog.typeOf(a),a],b,Array.prototype.slice.call(arguments,2));return a};
 goog.asserts.assertObject=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!goog.isObject(a)&&goog.asserts.doAssertFailure_("Expected object but got %s: %s.",[goog.typeOf(a),a],b,Array.prototype.slice.call(arguments,2));return a};goog.asserts.assertArray=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!goog.isArray(a)&&goog.asserts.doAssertFailure_("Expected array but got %s: %s.",[goog.typeOf(a),a],b,Array.prototype.slice.call(arguments,2));return a};
@@ -74,42 +74,42 @@ goog.asserts.assertInstanceof=function(a,b,c,d){!goog.asserts.ENABLE_ASSERTS||a
 goog.asserts.getType_=function(a){return a instanceof Function?a.displayName||a.name||"unknown type name":a instanceof Object?a.constructor.displayName||a.constructor.name||Object.prototype.toString.call(a):null===a?"null":typeof a};goog.array={};goog.NATIVE_ARRAY_PROTOTYPES=goog.TRUSTED_SITE;goog.array.ASSUME_NATIVE_FUNCTIONS=!1;goog.array.peek=function(a){return a[a.length-1]};goog.array.last=goog.array.peek;
 goog.array.indexOf=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.indexOf)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.indexOf.call(a,b,c)}:function(a,b,c){c=null==c?0:0>c?Math.max(0,a.length+c):c;if(goog.isString(a))return goog.isString(b)&&1==b.length?a.indexOf(b,c):-1;for(;c<a.length;c++)if(c in a&&a[c]===b)return c;return-1};
 goog.array.lastIndexOf=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.lastIndexOf)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.lastIndexOf.call(a,b,null==c?a.length-1:c)}:function(a,b,c){c=null==c?a.length-1:c;0>c&&(c=Math.max(0,a.length+c));if(goog.isString(a))return goog.isString(b)&&1==b.length?a.lastIndexOf(b,c):-1;for(;0<=c;c--)if(c in a&&a[c]===b)return c;return-1};
-goog.array.forEach=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.forEach)?function(a,b,c){goog.asserts.assert(null!=a.length);Array.prototype.forEach.call(a,b,c)}:function(a,b,c){for(var d=a.length,f=goog.isString(a)?a.split(""):a,g=0;g<d;g++)g in f&&b.call(c,f[g],g,a)};goog.array.forEachRight=function(a,b,c){for(var d=a.length,f=goog.isString(a)?a.split(""):a,d=d-1;0<=d;--d)d in f&&b.call(c,f[d],d,a)};
-goog.array.filter=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.filter)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.filter.call(a,b,c)}:function(a,b,c){for(var d=a.length,f=[],g=0,h=goog.isString(a)?a.split(""):a,k=0;k<d;k++)if(k in h){var l=h[k];b.call(c,l,k,a)&&(f[g++]=l)}return f};
-goog.array.map=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.map)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.map.call(a,b,c)}:function(a,b,c){for(var d=a.length,f=Array(d),g=goog.isString(a)?a.split(""):a,h=0;h<d;h++)h in g&&(f[h]=b.call(c,g[h],h,a));return f};
-goog.array.reduce=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.reduce)?function(a,b,c,d){goog.asserts.assert(null!=a.length);d&&(b=goog.bind(b,d));return Array.prototype.reduce.call(a,b,c)}:function(a,b,c,d){var f=c;goog.array.forEach(a,function(c,h){f=b.call(d,f,c,h,a)});return f};
-goog.array.reduceRight=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.reduceRight)?function(a,b,c,d){goog.asserts.assert(null!=a.length);goog.asserts.assert(null!=b);d&&(b=goog.bind(b,d));return Array.prototype.reduceRight.call(a,b,c)}:function(a,b,c,d){var f=c;goog.array.forEachRight(a,function(c,h){f=b.call(d,f,c,h,a)});return f};
-goog.array.some=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.some)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.some.call(a,b,c)}:function(a,b,c){for(var d=a.length,f=goog.isString(a)?a.split(""):a,g=0;g<d;g++)if(g in f&&b.call(c,f[g],g,a))return!0;return!1};
-goog.array.every=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.every)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.every.call(a,b,c)}:function(a,b,c){for(var d=a.length,f=goog.isString(a)?a.split(""):a,g=0;g<d;g++)if(g in f&&!b.call(c,f[g],g,a))return!1;return!0};goog.array.count=function(a,b,c){var d=0;goog.array.forEach(a,function(a,g,h){b.call(c,a,g,h)&&++d},c);return d};
-goog.array.find=function(a,b,c){b=goog.array.findIndex(a,b,c);return 0>b?null:goog.isString(a)?a.charAt(b):a[b]};goog.array.findIndex=function(a,b,c){for(var d=a.length,f=goog.isString(a)?a.split(""):a,g=0;g<d;g++)if(g in f&&b.call(c,f[g],g,a))return g;return-1};goog.array.findRight=function(a,b,c){b=goog.array.findIndexRight(a,b,c);return 0>b?null:goog.isString(a)?a.charAt(b):a[b]};
-goog.array.findIndexRight=function(a,b,c){for(var d=a.length,f=goog.isString(a)?a.split(""):a,d=d-1;0<=d;d--)if(d in f&&b.call(c,f[d],d,a))return d;return-1};goog.array.contains=function(a,b){return 0<=goog.array.indexOf(a,b)};goog.array.isEmpty=function(a){return 0==a.length};goog.array.clear=function(a){if(!goog.isArray(a))for(var b=a.length-1;0<=b;b--)delete a[b];a.length=0};goog.array.insert=function(a,b){goog.array.contains(a,b)||a.push(b)};
+goog.array.forEach=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.forEach)?function(a,b,c){goog.asserts.assert(null!=a.length);Array.prototype.forEach.call(a,b,c)}:function(a,b,c){for(var d=a.length,e=goog.isString(a)?a.split(""):a,f=0;f<d;f++)f in e&&b.call(c,e[f],f,a)};goog.array.forEachRight=function(a,b,c){for(var d=a.length,e=goog.isString(a)?a.split(""):a,d=d-1;0<=d;--d)d in e&&b.call(c,e[d],d,a)};
+goog.array.filter=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.filter)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.filter.call(a,b,c)}:function(a,b,c){for(var d=a.length,e=[],f=0,g=goog.isString(a)?a.split(""):a,h=0;h<d;h++)if(h in g){var k=g[h];b.call(c,k,h,a)&&(e[f++]=k)}return e};
+goog.array.map=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.map)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.map.call(a,b,c)}:function(a,b,c){for(var d=a.length,e=Array(d),f=goog.isString(a)?a.split(""):a,g=0;g<d;g++)g in f&&(e[g]=b.call(c,f[g],g,a));return e};
+goog.array.reduce=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.reduce)?function(a,b,c,d){goog.asserts.assert(null!=a.length);d&&(b=goog.bind(b,d));return Array.prototype.reduce.call(a,b,c)}:function(a,b,c,d){var e=c;goog.array.forEach(a,function(c,g){e=b.call(d,e,c,g,a)});return e};
+goog.array.reduceRight=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.reduceRight)?function(a,b,c,d){goog.asserts.assert(null!=a.length);goog.asserts.assert(null!=b);d&&(b=goog.bind(b,d));return Array.prototype.reduceRight.call(a,b,c)}:function(a,b,c,d){var e=c;goog.array.forEachRight(a,function(c,g){e=b.call(d,e,c,g,a)});return e};
+goog.array.some=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.some)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.some.call(a,b,c)}:function(a,b,c){for(var d=a.length,e=goog.isString(a)?a.split(""):a,f=0;f<d;f++)if(f in e&&b.call(c,e[f],f,a))return!0;return!1};
+goog.array.every=goog.NATIVE_ARRAY_PROTOTYPES&&(goog.array.ASSUME_NATIVE_FUNCTIONS||Array.prototype.every)?function(a,b,c){goog.asserts.assert(null!=a.length);return Array.prototype.every.call(a,b,c)}:function(a,b,c){for(var d=a.length,e=goog.isString(a)?a.split(""):a,f=0;f<d;f++)if(f in e&&!b.call(c,e[f],f,a))return!1;return!0};goog.array.count=function(a,b,c){var d=0;goog.array.forEach(a,function(a,f,g){b.call(c,a,f,g)&&++d},c);return d};
+goog.array.find=function(a,b,c){b=goog.array.findIndex(a,b,c);return 0>b?null:goog.isString(a)?a.charAt(b):a[b]};goog.array.findIndex=function(a,b,c){for(var d=a.length,e=goog.isString(a)?a.split(""):a,f=0;f<d;f++)if(f in e&&b.call(c,e[f],f,a))return f;return-1};goog.array.findRight=function(a,b,c){b=goog.array.findIndexRight(a,b,c);return 0>b?null:goog.isString(a)?a.charAt(b):a[b]};
+goog.array.findIndexRight=function(a,b,c){for(var d=a.length,e=goog.isString(a)?a.split(""):a,d=d-1;0<=d;d--)if(d in e&&b.call(c,e[d],d,a))return d;return-1};goog.array.contains=function(a,b){return 0<=goog.array.indexOf(a,b)};goog.array.isEmpty=function(a){return 0==a.length};goog.array.clear=function(a){if(!goog.isArray(a))for(var b=a.length-1;0<=b;b--)delete a[b];a.length=0};goog.array.insert=function(a,b){goog.array.contains(a,b)||a.push(b)};
 goog.array.insertAt=function(a,b,c){goog.array.splice(a,c,0,b)};goog.array.insertArrayAt=function(a,b,c){goog.partial(goog.array.splice,a,c,0).apply(null,b)};goog.array.insertBefore=function(a,b,c){var d;2==arguments.length||0>(d=goog.array.indexOf(a,c))?a.push(b):goog.array.insertAt(a,b,d)};goog.array.remove=function(a,b){var c=goog.array.indexOf(a,b),d;(d=0<=c)&&goog.array.removeAt(a,c);return d};
-goog.array.removeLast=function(a,b){var c=goog.array.lastIndexOf(a,b);return 0<=c?(goog.array.removeAt(a,c),!0):!1};goog.array.removeAt=function(a,b){goog.asserts.assert(null!=a.length);return 1==Array.prototype.splice.call(a,b,1).length};goog.array.removeIf=function(a,b,c){b=goog.array.findIndex(a,b,c);return 0<=b?(goog.array.removeAt(a,b),!0):!1};goog.array.removeAllIf=function(a,b,c){var d=0;goog.array.forEachRight(a,function(f,g){b.call(c,f,g,a)&&goog.array.removeAt(a,g)&&d++});return d};
+goog.array.removeLast=function(a,b){var c=goog.array.lastIndexOf(a,b);return 0<=c?(goog.array.removeAt(a,c),!0):!1};goog.array.removeAt=function(a,b){goog.asserts.assert(null!=a.length);return 1==Array.prototype.splice.call(a,b,1).length};goog.array.removeIf=function(a,b,c){b=goog.array.findIndex(a,b,c);return 0<=b?(goog.array.removeAt(a,b),!0):!1};goog.array.removeAllIf=function(a,b,c){var d=0;goog.array.forEachRight(a,function(e,f){b.call(c,e,f,a)&&goog.array.removeAt(a,f)&&d++});return d};
 goog.array.concat=function(a){return Array.prototype.concat.apply(Array.prototype,arguments)};goog.array.join=function(a){return Array.prototype.concat.apply(Array.prototype,arguments)};goog.array.toArray=function(a){var b=a.length;if(0<b){for(var c=Array(b),d=0;d<b;d++)c[d]=a[d];return c}return[]};goog.array.clone=goog.array.toArray;
-goog.array.extend=function(a,b){for(var c=1;c<arguments.length;c++){var d=arguments[c];if(goog.isArrayLike(d)){var f=a.length||0,g=d.length||0;a.length=f+g;for(var h=0;h<g;h++)a[f+h]=d[h]}else a.push(d)}};goog.array.splice=function(a,b,c,d){goog.asserts.assert(null!=a.length);return Array.prototype.splice.apply(a,goog.array.slice(arguments,1))};
-goog.array.slice=function(a,b,c){goog.asserts.assert(null!=a.length);return 2>=arguments.length?Array.prototype.slice.call(a,b):Array.prototype.slice.call(a,b,c)};goog.array.removeDuplicates=function(a,b,c){b=b||a;var d=function(a){return goog.isObject(a)?"o"+goog.getUid(a):(typeof a).charAt(0)+a};c=c||d;for(var d={},f=0,g=0;g<a.length;){var h=a[g++],k=c(h);Object.prototype.hasOwnProperty.call(d,k)||(d[k]=!0,b[f++]=h)}b.length=f};
-goog.array.binarySearch=function(a,b,c){return goog.array.binarySearch_(a,c||goog.array.defaultCompare,!1,b)};goog.array.binarySelect=function(a,b,c){return goog.array.binarySearch_(a,b,!0,void 0,c)};goog.array.binarySearch_=function(a,b,c,d,f){for(var g=0,h=a.length,k;g<h;){var l=g+h>>1,m;m=c?b.call(f,a[l],l,a):b(d,a[l]);0<m?g=l+1:(h=l,k=!m)}return k?g:~g};goog.array.sort=function(a,b){a.sort(b||goog.array.defaultCompare)};
-goog.array.stableSort=function(a,b){for(var c=Array(a.length),d=0;d<a.length;d++)c[d]={index:d,value:a[d]};var f=b||goog.array.defaultCompare;goog.array.sort(c,function(a,b){return f(a.value,b.value)||a.index-b.index});for(d=0;d<a.length;d++)a[d]=c[d].value};goog.array.sortByKey=function(a,b,c){var d=c||goog.array.defaultCompare;goog.array.sort(a,function(a,c){return d(b(a),b(c))})};goog.array.sortObjectsByKey=function(a,b,c){goog.array.sortByKey(a,function(a){return a[b]},c)};
-goog.array.isSorted=function(a,b,c){b=b||goog.array.defaultCompare;for(var d=1;d<a.length;d++){var f=b(a[d-1],a[d]);if(0<f||0==f&&c)return!1}return!0};goog.array.equals=function(a,b,c){if(!goog.isArrayLike(a)||!goog.isArrayLike(b)||a.length!=b.length)return!1;var d=a.length;c=c||goog.array.defaultCompareEquality;for(var f=0;f<d;f++)if(!c(a[f],b[f]))return!1;return!0};
-goog.array.compare3=function(a,b,c){c=c||goog.array.defaultCompare;for(var d=Math.min(a.length,b.length),f=0;f<d;f++){var g=c(a[f],b[f]);if(0!=g)return g}return goog.array.defaultCompare(a.length,b.length)};goog.array.defaultCompare=function(a,b){return a>b?1:a<b?-1:0};goog.array.inverseDefaultCompare=function(a,b){return-goog.array.defaultCompare(a,b)};goog.array.defaultCompareEquality=function(a,b){return a===b};
-goog.array.binaryInsert=function(a,b,c){c=goog.array.binarySearch(a,b,c);return 0>c?(goog.array.insertAt(a,b,-(c+1)),!0):!1};goog.array.binaryRemove=function(a,b,c){b=goog.array.binarySearch(a,b,c);return 0<=b?goog.array.removeAt(a,b):!1};goog.array.bucket=function(a,b,c){for(var d={},f=0;f<a.length;f++){var g=a[f],h=b.call(c,g,f,a);goog.isDef(h)&&(d[h]||(d[h]=[])).push(g)}return d};goog.array.toObject=function(a,b,c){var d={};goog.array.forEach(a,function(f,g){d[b.call(c,f,g,a)]=f});return d};
-goog.array.range=function(a,b,c){var d=[],f=0,g=a;c=c||1;void 0!==b&&(f=a,g=b);if(0>c*(g-f))return[];if(0<c)for(a=f;a<g;a+=c)d.push(a);else for(a=f;a>g;a+=c)d.push(a);return d};goog.array.repeat=function(a,b){for(var c=[],d=0;d<b;d++)c[d]=a;return c};goog.array.flatten=function(a){for(var b=[],c=0;c<arguments.length;c++){var d=arguments[c];if(goog.isArray(d))for(var f=0;f<d.length;f+=8192)for(var g=goog.array.slice(d,f,f+8192),g=goog.array.flatten.apply(null,g),h=0;h<g.length;h++)b.push(g[h]);else b.push(d)}return b};
+goog.array.extend=function(a,b){for(var c=1;c<arguments.length;c++){var d=arguments[c];if(goog.isArrayLike(d)){var e=a.length||0,f=d.length||0;a.length=e+f;for(var g=0;g<f;g++)a[e+g]=d[g]}else a.push(d)}};goog.array.splice=function(a,b,c,d){goog.asserts.assert(null!=a.length);return Array.prototype.splice.apply(a,goog.array.slice(arguments,1))};
+goog.array.slice=function(a,b,c){goog.asserts.assert(null!=a.length);return 2>=arguments.length?Array.prototype.slice.call(a,b):Array.prototype.slice.call(a,b,c)};goog.array.removeDuplicates=function(a,b,c){b=b||a;var d=function(a){return goog.isObject(a)?"o"+goog.getUid(a):(typeof a).charAt(0)+a};c=c||d;for(var d={},e=0,f=0;f<a.length;){var g=a[f++],h=c(g);Object.prototype.hasOwnProperty.call(d,h)||(d[h]=!0,b[e++]=g)}b.length=e};
+goog.array.binarySearch=function(a,b,c){return goog.array.binarySearch_(a,c||goog.array.defaultCompare,!1,b)};goog.array.binarySelect=function(a,b,c){return goog.array.binarySearch_(a,b,!0,void 0,c)};goog.array.binarySearch_=function(a,b,c,d,e){for(var f=0,g=a.length,h;f<g;){var k=f+g>>1,l;l=c?b.call(e,a[k],k,a):b(d,a[k]);0<l?f=k+1:(g=k,h=!l)}return h?f:~f};goog.array.sort=function(a,b){a.sort(b||goog.array.defaultCompare)};
+goog.array.stableSort=function(a,b){for(var c=Array(a.length),d=0;d<a.length;d++)c[d]={index:d,value:a[d]};var e=b||goog.array.defaultCompare;goog.array.sort(c,function(a,b){return e(a.value,b.value)||a.index-b.index});for(d=0;d<a.length;d++)a[d]=c[d].value};goog.array.sortByKey=function(a,b,c){var d=c||goog.array.defaultCompare;goog.array.sort(a,function(a,c){return d(b(a),b(c))})};goog.array.sortObjectsByKey=function(a,b,c){goog.array.sortByKey(a,function(a){return a[b]},c)};
+goog.array.isSorted=function(a,b,c){b=b||goog.array.defaultCompare;for(var d=1;d<a.length;d++){var e=b(a[d-1],a[d]);if(0<e||0==e&&c)return!1}return!0};goog.array.equals=function(a,b,c){if(!goog.isArrayLike(a)||!goog.isArrayLike(b)||a.length!=b.length)return!1;var d=a.length;c=c||goog.array.defaultCompareEquality;for(var e=0;e<d;e++)if(!c(a[e],b[e]))return!1;return!0};
+goog.array.compare3=function(a,b,c){c=c||goog.array.defaultCompare;for(var d=Math.min(a.length,b.length),e=0;e<d;e++){var f=c(a[e],b[e]);if(0!=f)return f}return goog.array.defaultCompare(a.length,b.length)};goog.array.defaultCompare=function(a,b){return a>b?1:a<b?-1:0};goog.array.inverseDefaultCompare=function(a,b){return-goog.array.defaultCompare(a,b)};goog.array.defaultCompareEquality=function(a,b){return a===b};
+goog.array.binaryInsert=function(a,b,c){c=goog.array.binarySearch(a,b,c);return 0>c?(goog.array.insertAt(a,b,-(c+1)),!0):!1};goog.array.binaryRemove=function(a,b,c){b=goog.array.binarySearch(a,b,c);return 0<=b?goog.array.removeAt(a,b):!1};goog.array.bucket=function(a,b,c){for(var d={},e=0;e<a.length;e++){var f=a[e],g=b.call(c,f,e,a);goog.isDef(g)&&(d[g]||(d[g]=[])).push(f)}return d};goog.array.toObject=function(a,b,c){var d={};goog.array.forEach(a,function(e,f){d[b.call(c,e,f,a)]=e});return d};
+goog.array.range=function(a,b,c){var d=[],e=0,f=a;c=c||1;void 0!==b&&(e=a,f=b);if(0>c*(f-e))return[];if(0<c)for(a=e;a<f;a+=c)d.push(a);else for(a=e;a>f;a+=c)d.push(a);return d};goog.array.repeat=function(a,b){for(var c=[],d=0;d<b;d++)c[d]=a;return c};goog.array.flatten=function(a){for(var b=[],c=0;c<arguments.length;c++){var d=arguments[c];if(goog.isArray(d))for(var e=0;e<d.length;e+=8192)for(var f=goog.array.slice(d,e,e+8192),f=goog.array.flatten.apply(null,f),g=0;g<f.length;g++)b.push(f[g]);else b.push(d)}return b};
 goog.array.rotate=function(a,b){goog.asserts.assert(null!=a.length);a.length&&(b%=a.length,0<b?Array.prototype.unshift.apply(a,a.splice(-b,b)):0>b&&Array.prototype.push.apply(a,a.splice(0,-b)));return a};goog.array.moveItem=function(a,b,c){goog.asserts.assert(0<=b&&b<a.length);goog.asserts.assert(0<=c&&c<a.length);b=Array.prototype.splice.call(a,b,1);Array.prototype.splice.call(a,c,0,b[0])};
-goog.array.zip=function(a){if(!arguments.length)return[];for(var b=[],c=arguments[0].length,d=1;d<arguments.length;d++)arguments[d].length<c&&(c=arguments[d].length);for(d=0;d<c;d++){for(var f=[],g=0;g<arguments.length;g++)f.push(arguments[g][d]);b.push(f)}return b};goog.array.shuffle=function(a,b){for(var c=b||Math.random,d=a.length-1;0<d;d--){var f=Math.floor(c()*(d+1)),g=a[d];a[d]=a[f];a[f]=g}};goog.array.copyByIndex=function(a,b){var c=[];goog.array.forEach(b,function(b){c.push(a[b])});return c};goog.math={};goog.math.randomInt=function(a){return Math.floor(Math.random()*a)};goog.math.uniformRandom=function(a,b){return a+Math.random()*(b-a)};goog.math.clamp=function(a,b,c){return Math.min(Math.max(a,b),c)};goog.math.modulo=function(a,b){var c=a%b;return 0>c*b?c+b:c};goog.math.lerp=function(a,b,c){return a+c*(b-a)};goog.math.nearlyEquals=function(a,b,c){return Math.abs(a-b)<=(c||1E-6)};goog.math.standardAngle=function(a){return goog.math.modulo(a,360)};
+goog.array.zip=function(a){if(!arguments.length)return[];for(var b=[],c=arguments[0].length,d=1;d<arguments.length;d++)arguments[d].length<c&&(c=arguments[d].length);for(d=0;d<c;d++){for(var e=[],f=0;f<arguments.length;f++)e.push(arguments[f][d]);b.push(e)}return b};goog.array.shuffle=function(a,b){for(var c=b||Math.random,d=a.length-1;0<d;d--){var e=Math.floor(c()*(d+1)),f=a[d];a[d]=a[e];a[e]=f}};goog.array.copyByIndex=function(a,b){var c=[];goog.array.forEach(b,function(b){c.push(a[b])});return c};goog.math={};goog.math.randomInt=function(a){return Math.floor(Math.random()*a)};goog.math.uniformRandom=function(a,b){return a+Math.random()*(b-a)};goog.math.clamp=function(a,b,c){return Math.min(Math.max(a,b),c)};goog.math.modulo=function(a,b){var c=a%b;return 0>c*b?c+b:c};goog.math.lerp=function(a,b,c){return a+c*(b-a)};goog.math.nearlyEquals=function(a,b,c){return Math.abs(a-b)<=(c||1E-6)};goog.math.standardAngle=function(a){return goog.math.modulo(a,360)};
 goog.math.standardAngleInRadians=function(a){return goog.math.modulo(a,2*Math.PI)};goog.math.toRadians=function(a){return a*Math.PI/180};goog.math.toDegrees=function(a){return 180*a/Math.PI};goog.math.angleDx=function(a,b){return b*Math.cos(goog.math.toRadians(a))};goog.math.angleDy=function(a,b){return b*Math.sin(goog.math.toRadians(a))};goog.math.angle=function(a,b,c,d){return goog.math.standardAngle(goog.math.toDegrees(Math.atan2(d-b,c-a)))};
 goog.math.angleDifference=function(a,b){var c=goog.math.standardAngle(b)-goog.math.standardAngle(a);180<c?c-=360:-180>=c&&(c=360+c);return c};goog.math.sign=Math.sign||function(a){return 0<a?1:0>a?-1:a};
-goog.math.longestCommonSubsequence=function(a,b,c,d){c=c||function(a,b){return a==b};d=d||function(b,c){return a[b]};for(var f=a.length,g=b.length,h=[],k=0;k<f+1;k++)h[k]=[],h[k][0]=0;for(var l=0;l<g+1;l++)h[0][l]=0;for(k=1;k<=f;k++)for(l=1;l<=g;l++)c(a[k-1],b[l-1])?h[k][l]=h[k-1][l-1]+1:h[k][l]=Math.max(h[k-1][l],h[k][l-1]);for(var m=[],k=f,l=g;0<k&&0<l;)c(a[k-1],b[l-1])?(m.unshift(d(k-1,l-1)),k--,l--):h[k-1][l]>h[k][l-1]?k--:l--;return m};
+goog.math.longestCommonSubsequence=function(a,b,c,d){c=c||function(a,b){return a==b};d=d||function(b,c){return a[b]};for(var e=a.length,f=b.length,g=[],h=0;h<e+1;h++)g[h]=[],g[h][0]=0;for(var k=0;k<f+1;k++)g[0][k]=0;for(h=1;h<=e;h++)for(k=1;k<=f;k++)c(a[h-1],b[k-1])?g[h][k]=g[h-1][k-1]+1:g[h][k]=Math.max(g[h-1][k],g[h][k-1]);for(var l=[],h=e,k=f;0<h&&0<k;)c(a[h-1],b[k-1])?(l.unshift(d(h-1,k-1)),h--,k--):g[h-1][k]>g[h][k-1]?h--:k--;return l};
 goog.math.sum=function(a){return goog.array.reduce(arguments,function(a,c){return a+c},0)};goog.math.average=function(a){return goog.math.sum.apply(null,arguments)/arguments.length};goog.math.sampleVariance=function(a){var b=arguments.length;if(2>b)return 0;var c=goog.math.average.apply(null,arguments);return goog.math.sum.apply(null,goog.array.map(arguments,function(a){return Math.pow(a-c,2)}))/(b-1)};goog.math.standardDeviation=function(a){return Math.sqrt(goog.math.sampleVariance.apply(null,arguments))};
 goog.math.isInt=function(a){return isFinite(a)&&0==a%1};goog.math.isFiniteNumber=function(a){return isFinite(a)&&!isNaN(a)};goog.math.isNegativeZero=function(a){return 0==a&&0>1/a};goog.math.log10Floor=function(a){if(0<a){var b=Math.round(Math.log(a)*Math.LOG10E);return b-(parseFloat("1e"+b)>a?1:0)}return 0==a?-Infinity:NaN};goog.math.safeFloor=function(a,b){goog.asserts.assert(!goog.isDef(b)||0<b);return Math.floor(a+(b||2E-15))};
 goog.math.safeCeil=function(a,b){goog.asserts.assert(!goog.isDef(b)||0<b);return Math.ceil(a-(b||2E-15))};goog.labs={};goog.labs.userAgent={};goog.labs.userAgent.util={};goog.labs.userAgent.util.getNativeUserAgentString_=function(){var a=goog.labs.userAgent.util.getNavigator_();return a&&(a=a.userAgent)?a:""};goog.labs.userAgent.util.getNavigator_=function(){return goog.global.navigator};goog.labs.userAgent.util.userAgent_=goog.labs.userAgent.util.getNativeUserAgentString_();goog.labs.userAgent.util.setUserAgent=function(a){goog.labs.userAgent.util.userAgent_=a||goog.labs.userAgent.util.getNativeUserAgentString_()};
 goog.labs.userAgent.util.getUserAgent=function(){return goog.labs.userAgent.util.userAgent_};goog.labs.userAgent.util.matchUserAgent=function(a){var b=goog.labs.userAgent.util.getUserAgent();return goog.string.contains(b,a)};goog.labs.userAgent.util.matchUserAgentIgnoreCase=function(a){var b=goog.labs.userAgent.util.getUserAgent();return goog.string.caseInsensitiveContains(b,a)};
-goog.labs.userAgent.util.extractVersionTuples=function(a){for(var b=RegExp("(\\w[\\w ]+)/([^\\s]+)\\s*(?:\\((.*?)\\))?","g"),c=[],d;d=b.exec(a);)c.push([d[1],d[2],d[3]||void 0]);return c};goog.object={};goog.object.forEach=function(a,b,c){for(var d in a)b.call(c,a[d],d,a)};goog.object.filter=function(a,b,c){var d={},f;for(f in a)b.call(c,a[f],f,a)&&(d[f]=a[f]);return d};goog.object.map=function(a,b,c){var d={},f;for(f in a)d[f]=b.call(c,a[f],f,a);return d};goog.object.some=function(a,b,c){for(var d in a)if(b.call(c,a[d],d,a))return!0;return!1};goog.object.every=function(a,b,c){for(var d in a)if(!b.call(c,a[d],d,a))return!1;return!0};
+goog.labs.userAgent.util.extractVersionTuples=function(a){for(var b=RegExp("(\\w[\\w ]+)/([^\\s]+)\\s*(?:\\((.*?)\\))?","g"),c=[],d;d=b.exec(a);)c.push([d[1],d[2],d[3]||void 0]);return c};goog.object={};goog.object.forEach=function(a,b,c){for(var d in a)b.call(c,a[d],d,a)};goog.object.filter=function(a,b,c){var d={},e;for(e in a)b.call(c,a[e],e,a)&&(d[e]=a[e]);return d};goog.object.map=function(a,b,c){var d={},e;for(e in a)d[e]=b.call(c,a[e],e,a);return d};goog.object.some=function(a,b,c){for(var d in a)if(b.call(c,a[d],d,a))return!0;return!1};goog.object.every=function(a,b,c){for(var d in a)if(!b.call(c,a[d],d,a))return!1;return!0};
 goog.object.getCount=function(a){var b=0,c;for(c in a)b++;return b};goog.object.getAnyKey=function(a){for(var b in a)return b};goog.object.getAnyValue=function(a){for(var b in a)return a[b]};goog.object.contains=function(a,b){return goog.object.containsValue(a,b)};goog.object.getValues=function(a){var b=[],c=0,d;for(d in a)b[c++]=a[d];return b};goog.object.getKeys=function(a){var b=[],c=0,d;for(d in a)b[c++]=d;return b};
 goog.object.getValueByKeys=function(a,b){for(var c=goog.isArrayLike(b),d=c?b:arguments,c=c?0:1;c<d.length&&(a=a[d[c]],goog.isDef(a));c++);return a};goog.object.containsKey=function(a,b){return null!==a&&b in a};goog.object.containsValue=function(a,b){for(var c in a)if(a[c]==b)return!0;return!1};goog.object.findKey=function(a,b,c){for(var d in a)if(b.call(c,a[d],d,a))return d};goog.object.findValue=function(a,b,c){return(b=goog.object.findKey(a,b,c))&&a[b]};
 goog.object.isEmpty=function(a){for(var b in a)return!1;return!0};goog.object.clear=function(a){for(var b in a)delete a[b]};goog.object.remove=function(a,b){var c;(c=b in a)&&delete a[b];return c};goog.object.add=function(a,b,c){if(null!==a&&b in a)throw Error('The object already contains the key "'+b+'"');goog.object.set(a,b,c)};goog.object.get=function(a,b,c){return null!==a&&b in a?a[b]:c};goog.object.set=function(a,b,c){a[b]=c};
 goog.object.setIfUndefined=function(a,b,c){return b in a?a[b]:a[b]=c};goog.object.setWithReturnValueIfNotSet=function(a,b,c){if(b in a)return a[b];c=c();return a[b]=c};goog.object.equals=function(a,b){for(var c in a)if(!(c in b)||a[c]!==b[c])return!1;for(c in b)if(!(c in a))return!1;return!0};goog.object.clone=function(a){var b={},c;for(c in a)b[c]=a[c];return b};
 goog.object.unsafeClone=function(a){var b=goog.typeOf(a);if("object"==b||"array"==b){if(goog.isFunction(a.clone))return a.clone();var b="array"==b?[]:{},c;for(c in a)b[c]=goog.object.unsafeClone(a[c]);return b}return a};goog.object.transpose=function(a){var b={},c;for(c in a)b[a[c]]=c;return b};goog.object.PROTOTYPE_FIELDS_="constructor hasOwnProperty isPrototypeOf propertyIsEnumerable toLocaleString toString valueOf".split(" ");
-goog.object.extend=function(a,b){for(var c,d,f=1;f<arguments.length;f++){d=arguments[f];for(c in d)a[c]=d[c];for(var g=0;g<goog.object.PROTOTYPE_FIELDS_.length;g++)c=goog.object.PROTOTYPE_FIELDS_[g],Object.prototype.hasOwnProperty.call(d,c)&&(a[c]=d[c])}};
+goog.object.extend=function(a,b){for(var c,d,e=1;e<arguments.length;e++){d=arguments[e];for(c in d)a[c]=d[c];for(var f=0;f<goog.object.PROTOTYPE_FIELDS_.length;f++)c=goog.object.PROTOTYPE_FIELDS_[f],Object.prototype.hasOwnProperty.call(d,c)&&(a[c]=d[c])}};
 goog.object.create=function(a){var b=arguments.length;if(1==b&&goog.isArray(arguments[0]))return goog.object.create.apply(null,arguments[0]);if(b%2)throw Error("Uneven number of arguments");for(var c={},d=0;d<b;d+=2)c[arguments[d]]=arguments[d+1];return c};goog.object.createSet=function(a){var b=arguments.length;if(1==b&&goog.isArray(arguments[0]))return goog.object.createSet.apply(null,arguments[0]);for(var c={},d=0;d<b;d++)c[arguments[d]]=!0;return c};
 goog.object.createImmutableView=function(a){var b=a;Object.isFrozen&&!Object.isFrozen(a)&&(b=Object.create(a),Object.freeze(b));return b};goog.object.isImmutableView=function(a){return!!Object.isFrozen&&Object.isFrozen(a)};goog.labs.userAgent.browser={};goog.labs.userAgent.browser.matchOpera_=function(){return goog.labs.userAgent.util.matchUserAgent("Opera")||goog.labs.userAgent.util.matchUserAgent("OPR")};goog.labs.userAgent.browser.matchIE_=function(){return goog.labs.userAgent.util.matchUserAgent("Trident")||goog.labs.userAgent.util.matchUserAgent("MSIE")};goog.labs.userAgent.browser.matchEdge_=function(){return goog.labs.userAgent.util.matchUserAgent("Edge")};goog.labs.userAgent.browser.matchFirefox_=function(){return goog.labs.userAgent.util.matchUserAgent("Firefox")};
 goog.labs.userAgent.browser.matchSafari_=function(){return goog.labs.userAgent.util.matchUserAgent("Safari")&&!(goog.labs.userAgent.browser.matchChrome_()||goog.labs.userAgent.browser.matchCoast_()||goog.labs.userAgent.browser.matchOpera_()||goog.labs.userAgent.browser.matchEdge_()||goog.labs.userAgent.browser.isSilk()||goog.labs.userAgent.util.matchUserAgent("Android"))};goog.labs.userAgent.browser.matchCoast_=function(){return goog.labs.userAgent.util.matchUserAgent("Coast")};
@@ -148,7 +148,7 @@ goog.html.SafeStyle.checkStyle_=function(a){goog.asserts.assert(!/[<>]/.test(a),
 goog.html.SafeStyle.unwrap=function(a){if(a instanceof goog.html.SafeStyle&&a.constructor===goog.html.SafeStyle&&a.SAFE_STYLE_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_===goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_)return a.privateDoNotAccessOrElseSafeStyleWrappedValue_;goog.asserts.fail("expected object of type SafeStyle, got '"+a+"' of type "+goog.typeOf(a));return"type_error:SafeStyle"};goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse=function(a){return(new goog.html.SafeStyle).initSecurityPrivateDoNotAccessOrElse_(a)};
 goog.html.SafeStyle.prototype.initSecurityPrivateDoNotAccessOrElse_=function(a){this.privateDoNotAccessOrElseSafeStyleWrappedValue_=a;return this};goog.html.SafeStyle.EMPTY=goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse("");goog.html.SafeStyle.INNOCUOUS_STRING="zClosurez";
 goog.html.SafeStyle.create=function(a){var b="",c;for(c in a){if(!/^[-_a-zA-Z0-9]+$/.test(c))throw Error("Name allows only [-_a-zA-Z0-9], got: "+c);var d=a[c];null!=d&&(d instanceof goog.string.Const?(d=goog.string.Const.unwrap(d),goog.asserts.assert(!/[{;}]/.test(d),"Value does not allow [{;}].")):goog.html.SafeStyle.VALUE_RE_.test(d)?goog.html.SafeStyle.hasBalancedQuotes_(d)||(goog.asserts.fail("String value requires balanced quotes, got: "+d),d=goog.html.SafeStyle.INNOCUOUS_STRING):(goog.asserts.fail("String value allows only [-,.\"'%_!# a-zA-Z0-9], rgb() and rgba(), got: "+
-d),d=goog.html.SafeStyle.INNOCUOUS_STRING),b+=c+":"+d+";")}if(!b)return goog.html.SafeStyle.EMPTY;goog.html.SafeStyle.checkStyle_(b);return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(b)};goog.html.SafeStyle.hasBalancedQuotes_=function(a){for(var b=!0,c=!0,d=0;d<a.length;d++){var f=a.charAt(d);"'"==f&&c?b=!b:'"'==f&&b&&(c=!c)}return b&&c};goog.html.SafeStyle.VALUE_RE_=/^([-,."'%_!# a-zA-Z0-9]+|(?:rgb|hsl)a?\([0-9.%, ]+\))$/;
+d),d=goog.html.SafeStyle.INNOCUOUS_STRING),b+=c+":"+d+";")}if(!b)return goog.html.SafeStyle.EMPTY;goog.html.SafeStyle.checkStyle_(b);return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(b)};goog.html.SafeStyle.hasBalancedQuotes_=function(a){for(var b=!0,c=!0,d=0;d<a.length;d++){var e=a.charAt(d);"'"==e&&c?b=!b:'"'==e&&b&&(c=!c)}return b&&c};goog.html.SafeStyle.VALUE_RE_=/^([-,."'%_!# a-zA-Z0-9]+|(?:rgb|hsl)a?\([0-9.%, ]+\))$/;
 goog.html.SafeStyle.concat=function(a){var b="",c=function(a){goog.isArray(a)?goog.array.forEach(a,c):b+=goog.html.SafeStyle.unwrap(a)};goog.array.forEach(arguments,c);return b?goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(b):goog.html.SafeStyle.EMPTY};goog.html.SafeStyleSheet=function(){this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_="";this.SAFE_STYLE_SHEET_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_=goog.html.SafeStyleSheet.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_};goog.html.SafeStyleSheet.prototype.implementsGoogStringTypedString=!0;goog.html.SafeStyleSheet.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_={};
 goog.html.SafeStyleSheet.concat=function(a){var b="",c=function(a){goog.isArray(a)?goog.array.forEach(a,c):b+=goog.html.SafeStyleSheet.unwrap(a)};goog.array.forEach(arguments,c);return goog.html.SafeStyleSheet.createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(b)};
 goog.html.SafeStyleSheet.fromConstant=function(a){a=goog.string.Const.unwrap(a);if(0===a.length)return goog.html.SafeStyleSheet.EMPTY;goog.asserts.assert(!goog.string.contains(a,"<"),"Forbidden '<' character in style sheet string: "+a);return goog.html.SafeStyleSheet.createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(a)};goog.html.SafeStyleSheet.prototype.getTypedStringValue=function(){return this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_};
@@ -169,7 +169,7 @@ goog.i18n.bidi.guardBracketInText=function(a,b){var c=(void 0===b?goog.i18n.bidi
 goog.i18n.bidi.enforceLtrInHtml=function(a){return"<"==a.charAt(0)?a.replace(/<\w+/,"$& dir=ltr"):"\n<span dir=ltr>"+a+"</span>"};goog.i18n.bidi.enforceLtrInText=function(a){return goog.i18n.bidi.Format.LRE+a+goog.i18n.bidi.Format.PDF};goog.i18n.bidi.dimensionsRe_=/:\s*([.\d][.\w]*)\s+([.\d][.\w]*)\s+([.\d][.\w]*)\s+([.\d][.\w]*)/g;goog.i18n.bidi.leftRe_=/left/gi;goog.i18n.bidi.rightRe_=/right/gi;goog.i18n.bidi.tempRe_=/%%%%/g;
 goog.i18n.bidi.mirrorCSS=function(a){return a.replace(goog.i18n.bidi.dimensionsRe_,":$1 $4 $3 $2").replace(goog.i18n.bidi.leftRe_,"%%%%").replace(goog.i18n.bidi.rightRe_,goog.i18n.bidi.LEFT).replace(goog.i18n.bidi.tempRe_,goog.i18n.bidi.RIGHT)};goog.i18n.bidi.doubleQuoteSubstituteRe_=/([\u0591-\u05f2])"/g;goog.i18n.bidi.singleQuoteSubstituteRe_=/([\u0591-\u05f2])'/g;
 goog.i18n.bidi.normalizeHebrewQuote=function(a){return a.replace(goog.i18n.bidi.doubleQuoteSubstituteRe_,"$1\u05f4").replace(goog.i18n.bidi.singleQuoteSubstituteRe_,"$1\u05f3")};goog.i18n.bidi.wordSeparatorRe_=/\s+/;goog.i18n.bidi.hasNumeralsRe_=/[\d\u06f0-\u06f9]/;goog.i18n.bidi.rtlDetectionThreshold_=.4;
-goog.i18n.bidi.estimateDirection=function(a,b){for(var c=0,d=0,f=!1,g=goog.i18n.bidi.stripHtmlIfNeeded_(a,b).split(goog.i18n.bidi.wordSeparatorRe_),h=0;h<g.length;h++){var k=g[h];goog.i18n.bidi.startsWithRtl(k)?(c++,d++):goog.i18n.bidi.isRequiredLtrRe_.test(k)?f=!0:goog.i18n.bidi.hasAnyLtr(k)?d++:goog.i18n.bidi.hasNumeralsRe_.test(k)&&(f=!0)}return 0==d?f?goog.i18n.bidi.Dir.LTR:goog.i18n.bidi.Dir.NEUTRAL:c/d>goog.i18n.bidi.rtlDetectionThreshold_?goog.i18n.bidi.Dir.RTL:goog.i18n.bidi.Dir.LTR};
+goog.i18n.bidi.estimateDirection=function(a,b){for(var c=0,d=0,e=!1,f=goog.i18n.bidi.stripHtmlIfNeeded_(a,b).split(goog.i18n.bidi.wordSeparatorRe_),g=0;g<f.length;g++){var h=f[g];goog.i18n.bidi.startsWithRtl(h)?(c++,d++):goog.i18n.bidi.isRequiredLtrRe_.test(h)?e=!0:goog.i18n.bidi.hasAnyLtr(h)?d++:goog.i18n.bidi.hasNumeralsRe_.test(h)&&(e=!0)}return 0==d?e?goog.i18n.bidi.Dir.LTR:goog.i18n.bidi.Dir.NEUTRAL:c/d>goog.i18n.bidi.rtlDetectionThreshold_?goog.i18n.bidi.Dir.RTL:goog.i18n.bidi.Dir.LTR};
 goog.i18n.bidi.detectRtlDirectionality=function(a,b){return goog.i18n.bidi.estimateDirection(a,b)==goog.i18n.bidi.Dir.RTL};goog.i18n.bidi.setElementDirAndAlign=function(a,b){a&&(b=goog.i18n.bidi.toDir(b))&&(a.style.textAlign=b==goog.i18n.bidi.Dir.RTL?goog.i18n.bidi.RIGHT:goog.i18n.bidi.LEFT,a.dir=b==goog.i18n.bidi.Dir.RTL?"rtl":"ltr")};
 goog.i18n.bidi.setElementDirByTextDirectionality=function(a,b){switch(goog.i18n.bidi.estimateDirection(b)){case goog.i18n.bidi.Dir.LTR:a.dir="ltr";break;case goog.i18n.bidi.Dir.RTL:a.dir="rtl";break;default:a.removeAttribute("dir")}};goog.i18n.bidi.DirectionalString=function(){};goog.html.SafeUrl=function(){this.privateDoNotAccessOrElseSafeHtmlWrappedValue_="";this.SAFE_URL_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_=goog.html.SafeUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_};goog.html.SafeUrl.INNOCUOUS_STRING="about:invalid#zClosurez";goog.html.SafeUrl.prototype.implementsGoogStringTypedString=!0;goog.html.SafeUrl.prototype.getTypedStringValue=function(){return this.privateDoNotAccessOrElseSafeHtmlWrappedValue_};
 goog.html.SafeUrl.prototype.implementsGoogI18nBidiDirectionalString=!0;goog.html.SafeUrl.prototype.getDirection=function(){return goog.i18n.bidi.Dir.LTR};goog.DEBUG&&(goog.html.SafeUrl.prototype.toString=function(){return"SafeUrl{"+this.privateDoNotAccessOrElseSafeHtmlWrappedValue_+"}"});
@@ -189,30 +189,30 @@ goog.html.SafeHtml.htmlEscapePreservingNewlines=function(a){if(a instanceof goog
 goog.html.SafeHtml.htmlEscapePreservingNewlinesAndSpaces=function(a){if(a instanceof goog.html.SafeHtml)return a;a=goog.html.SafeHtml.htmlEscape(a);return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(goog.string.whitespaceEscape(goog.html.SafeHtml.unwrap(a)),a.getDirection())};goog.html.SafeHtml.from=goog.html.SafeHtml.htmlEscape;goog.html.SafeHtml.VALID_NAMES_IN_TAG_=/^[a-zA-Z0-9-]+$/;
 goog.html.SafeHtml.URL_ATTRIBUTES_={action:!0,cite:!0,data:!0,formaction:!0,href:!0,manifest:!0,poster:!0,src:!0};goog.html.SafeHtml.NOT_ALLOWED_TAG_NAMES_=goog.object.createSet(goog.dom.TagName.APPLET,goog.dom.TagName.BASE,goog.dom.TagName.EMBED,goog.dom.TagName.IFRAME,goog.dom.TagName.LINK,goog.dom.TagName.MATH,goog.dom.TagName.META,goog.dom.TagName.OBJECT,goog.dom.TagName.SCRIPT,goog.dom.TagName.STYLE,goog.dom.TagName.SVG,goog.dom.TagName.TEMPLATE);
 goog.html.SafeHtml.create=function(a,b,c){goog.html.SafeHtml.verifyTagName(a);return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(a,b,c)};goog.html.SafeHtml.verifyTagName=function(a){if(!goog.html.SafeHtml.VALID_NAMES_IN_TAG_.test(a))throw Error("Invalid tag name <"+a+">.");if(a.toUpperCase()in goog.html.SafeHtml.NOT_ALLOWED_TAG_NAMES_)throw Error("Tag name <"+a+"> is not allowed for SafeHtml.");};
-goog.html.SafeHtml.createIframe=function(a,b,c,d){a&&goog.html.TrustedResourceUrl.unwrap(a);var f={};f.src=a||null;f.srcdoc=b&&goog.html.SafeHtml.unwrap(b);a=goog.html.SafeHtml.combineAttributes(f,{sandbox:""},c);return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse("iframe",a,d)};
-goog.html.SafeHtml.createSandboxIframe=function(a,b,c,d){if(!goog.html.SafeHtml.canUseSandboxIframe())throw Error("The browser does not support sandboxed iframes.");var f={};f.src=a?goog.html.SafeUrl.unwrap(goog.html.SafeUrl.sanitize(a)):null;f.srcdoc=b||null;f.sandbox="";a=goog.html.SafeHtml.combineAttributes(f,{},c);return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse("iframe",a,d)};
+goog.html.SafeHtml.createIframe=function(a,b,c,d){a&&goog.html.TrustedResourceUrl.unwrap(a);var e={};e.src=a||null;e.srcdoc=b&&goog.html.SafeHtml.unwrap(b);a=goog.html.SafeHtml.combineAttributes(e,{sandbox:""},c);return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse("iframe",a,d)};
+goog.html.SafeHtml.createSandboxIframe=function(a,b,c,d){if(!goog.html.SafeHtml.canUseSandboxIframe())throw Error("The browser does not support sandboxed iframes.");var e={};e.src=a?goog.html.SafeUrl.unwrap(goog.html.SafeUrl.sanitize(a)):null;e.srcdoc=b||null;e.sandbox="";a=goog.html.SafeHtml.combineAttributes(e,{},c);return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse("iframe",a,d)};
 goog.html.SafeHtml.canUseSandboxIframe=function(){return goog.global.HTMLIFrameElement&&"sandbox"in goog.global.HTMLIFrameElement.prototype};goog.html.SafeHtml.createScriptSrc=function(a,b){goog.html.TrustedResourceUrl.unwrap(a);var c=goog.html.SafeHtml.combineAttributes({src:a},{},b);return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse("script",c)};
-goog.html.SafeHtml.createStyle=function(a,b){var c=goog.html.SafeHtml.combineAttributes({type:"text/css"},{},b),d="";a=goog.array.concat(a);for(var f=0;f<a.length;f++)d+=goog.html.SafeStyleSheet.unwrap(a[f]);d=goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(d,goog.i18n.bidi.Dir.NEUTRAL);return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse("style",c,d)};
+goog.html.SafeHtml.createStyle=function(a,b){var c=goog.html.SafeHtml.combineAttributes({type:"text/css"},{},b),d="";a=goog.array.concat(a);for(var e=0;e<a.length;e++)d+=goog.html.SafeStyleSheet.unwrap(a[e]);d=goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(d,goog.i18n.bidi.Dir.NEUTRAL);return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse("style",c,d)};
 goog.html.SafeHtml.createMetaRefresh=function(a,b){var c=goog.html.SafeUrl.unwrap(goog.html.SafeUrl.sanitize(a));(goog.labs.userAgent.browser.isIE()||goog.labs.userAgent.browser.isEdge())&&goog.string.contains(c,";")&&(c="'"+c.replace(/'/g,"%27")+"'");return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse("meta",{"http-equiv":"refresh",content:(b||0)+"; url="+c})};
 goog.html.SafeHtml.getAttrNameAndValue_=function(a,b,c){if(c instanceof goog.string.Const)c=goog.string.Const.unwrap(c);else if("style"==b.toLowerCase())c=goog.html.SafeHtml.getStyleValue_(c);else{if(/^on/i.test(b))throw Error('Attribute "'+b+'" requires goog.string.Const value, "'+c+'" given.');if(b.toLowerCase()in goog.html.SafeHtml.URL_ATTRIBUTES_)if(c instanceof goog.html.TrustedResourceUrl)c=goog.html.TrustedResourceUrl.unwrap(c);else if(c instanceof goog.html.SafeUrl)c=goog.html.SafeUrl.unwrap(c);
 else if(goog.isString(c))c=goog.html.SafeUrl.sanitize(c).getTypedStringValue();else throw Error('Attribute "'+b+'" on tag "'+a+'" requires goog.html.SafeUrl, goog.string.Const, or string, value "'+c+'" given.');}c.implementsGoogStringTypedString&&(c=c.getTypedStringValue());goog.asserts.assert(goog.isString(c)||goog.isNumber(c),"String or number value expected, got "+typeof c+" with value: "+c);return b+'="'+goog.string.htmlEscape(String(c))+'"'};
 goog.html.SafeHtml.getStyleValue_=function(a){if(!goog.isObject(a))throw Error('The "style" attribute requires goog.html.SafeStyle or map of style properties, '+typeof a+" given: "+a);a instanceof goog.html.SafeStyle||(a=goog.html.SafeStyle.create(a));return goog.html.SafeStyle.unwrap(a)};goog.html.SafeHtml.createWithDir=function(a,b,c,d){b=goog.html.SafeHtml.create(b,c,d);b.dir_=a;return b};
 goog.html.SafeHtml.concat=function(a){var b=goog.i18n.bidi.Dir.NEUTRAL,c="",d=function(a){goog.isArray(a)?goog.array.forEach(a,d):(a=goog.html.SafeHtml.htmlEscape(a),c+=goog.html.SafeHtml.unwrap(a),a=a.getDirection(),b==goog.i18n.bidi.Dir.NEUTRAL?b=a:a!=goog.i18n.bidi.Dir.NEUTRAL&&b!=a&&(b=null))};goog.array.forEach(arguments,d);return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(c,b)};
 goog.html.SafeHtml.concatWithDir=function(a,b){var c=goog.html.SafeHtml.concat(goog.array.slice(arguments,1));c.dir_=a;return c};goog.html.SafeHtml.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_={};goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse=function(a,b){return(new goog.html.SafeHtml).initSecurityPrivateDoNotAccessOrElse_(a,b)};goog.html.SafeHtml.prototype.initSecurityPrivateDoNotAccessOrElse_=function(a,b){this.privateDoNotAccessOrElseSafeHtmlWrappedValue_=a;this.dir_=b;return this};
-goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse=function(a,b,c){var d=null,f;f="<"+a+goog.html.SafeHtml.stringifyAttributes(a,b);goog.isDefAndNotNull(c)?goog.isArray(c)||(c=[c]):c=[];goog.dom.tags.isVoidTag(a.toLowerCase())?(goog.asserts.assert(!c.length,"Void tag <"+a+"> does not allow content."),f+=">"):(d=goog.html.SafeHtml.concat(c),f+=">"+goog.html.SafeHtml.unwrap(d)+"</"+a+">",d=d.getDirection());(a=b&&b.dir)&&(d=/^(ltr|rtl|auto)$/i.test(a)?goog.i18n.bidi.Dir.NEUTRAL:null);
-return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(f,d)};goog.html.SafeHtml.stringifyAttributes=function(a,b){var c="";if(b)for(var d in b){if(!goog.html.SafeHtml.VALID_NAMES_IN_TAG_.test(d))throw Error('Invalid attribute name "'+d+'".');var f=b[d];goog.isDefAndNotNull(f)&&(c+=" "+goog.html.SafeHtml.getAttrNameAndValue_(a,d,f))}return c};
-goog.html.SafeHtml.combineAttributes=function(a,b,c){var d={},f;for(f in a)goog.asserts.assert(f.toLowerCase()==f,"Must be lower case"),d[f]=a[f];for(f in b)goog.asserts.assert(f.toLowerCase()==f,"Must be lower case"),d[f]=b[f];for(f in c){var g=f.toLowerCase();if(g in a)throw Error('Cannot override "'+g+'" attribute, got "'+f+'" with value "'+c[f]+'"');g in b&&delete d[g];d[f]=c[f]}return d};
+goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse=function(a,b,c){var d=null,e;e="<"+a+goog.html.SafeHtml.stringifyAttributes(a,b);goog.isDefAndNotNull(c)?goog.isArray(c)||(c=[c]):c=[];goog.dom.tags.isVoidTag(a.toLowerCase())?(goog.asserts.assert(!c.length,"Void tag <"+a+"> does not allow content."),e+=">"):(d=goog.html.SafeHtml.concat(c),e+=">"+goog.html.SafeHtml.unwrap(d)+"</"+a+">",d=d.getDirection());(a=b&&b.dir)&&(d=/^(ltr|rtl|auto)$/i.test(a)?goog.i18n.bidi.Dir.NEUTRAL:null);
+return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(e,d)};goog.html.SafeHtml.stringifyAttributes=function(a,b){var c="";if(b)for(var d in b){if(!goog.html.SafeHtml.VALID_NAMES_IN_TAG_.test(d))throw Error('Invalid attribute name "'+d+'".');var e=b[d];goog.isDefAndNotNull(e)&&(c+=" "+goog.html.SafeHtml.getAttrNameAndValue_(a,d,e))}return c};
+goog.html.SafeHtml.combineAttributes=function(a,b,c){var d={},e;for(e in a)goog.asserts.assert(e.toLowerCase()==e,"Must be lower case"),d[e]=a[e];for(e in b)goog.asserts.assert(e.toLowerCase()==e,"Must be lower case"),d[e]=b[e];for(e in c){var f=e.toLowerCase();if(f in a)throw Error('Cannot override "'+f+'" attribute, got "'+e+'" with value "'+c[e]+'"');f in b&&delete d[f];d[e]=c[e]}return d};
 goog.html.SafeHtml.DOCTYPE_HTML=goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse("<!DOCTYPE html>",goog.i18n.bidi.Dir.NEUTRAL);goog.html.SafeHtml.EMPTY=goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse("",goog.i18n.bidi.Dir.NEUTRAL);goog.html.SafeHtml.BR=goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse("<br>",goog.i18n.bidi.Dir.NEUTRAL);goog.dom.safe={};goog.dom.safe.InsertAdjacentHtmlPosition={AFTERBEGIN:"afterbegin",AFTEREND:"afterend",BEFOREBEGIN:"beforebegin",BEFOREEND:"beforeend"};goog.dom.safe.insertAdjacentHtml=function(a,b,c){a.insertAdjacentHTML(b,goog.html.SafeHtml.unwrap(c))};goog.dom.safe.setInnerHtml=function(a,b){a.innerHTML=goog.html.SafeHtml.unwrap(b)};goog.dom.safe.setOuterHtml=function(a,b){a.outerHTML=goog.html.SafeHtml.unwrap(b)};goog.dom.safe.documentWrite=function(a,b){a.write(goog.html.SafeHtml.unwrap(b))};
 goog.dom.safe.setAnchorHref=function(a,b){var c;c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitize(b);a.href=goog.html.SafeUrl.unwrap(c)};goog.dom.safe.setImageSrc=function(a,b){var c;c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitize(b);a.src=goog.html.SafeUrl.unwrap(c)};goog.dom.safe.setEmbedSrc=function(a,b){a.src=goog.html.TrustedResourceUrl.unwrap(b)};goog.dom.safe.setFrameSrc=function(a,b){a.src=goog.html.TrustedResourceUrl.unwrap(b)};
 goog.dom.safe.setIframeSrc=function(a,b){a.src=goog.html.TrustedResourceUrl.unwrap(b)};
 goog.dom.safe.setLinkHrefAndRel=function(a,b,c){a.rel=c;goog.string.caseInsensitiveContains(c,"stylesheet")?(goog.asserts.assert(b instanceof goog.html.TrustedResourceUrl,'URL must be TrustedResourceUrl because "rel" contains "stylesheet"'),a.href=goog.html.TrustedResourceUrl.unwrap(b)):a.href=b instanceof goog.html.TrustedResourceUrl?goog.html.TrustedResourceUrl.unwrap(b):b instanceof goog.html.SafeUrl?goog.html.SafeUrl.unwrap(b):goog.html.SafeUrl.sanitize(b).getTypedStringValue()};
 goog.dom.safe.setObjectData=function(a,b){a.data=goog.html.TrustedResourceUrl.unwrap(b)};goog.dom.safe.setScriptSrc=function(a,b){a.src=goog.html.TrustedResourceUrl.unwrap(b)};goog.dom.safe.setLocationHref=function(a,b){var c;c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitize(b);a.href=goog.html.SafeUrl.unwrap(c)};
-goog.dom.safe.openInWindow=function(a,b,c,d,f){a=a instanceof goog.html.SafeUrl?a:goog.html.SafeUrl.sanitize(a);return(b||window).open(goog.html.SafeUrl.unwrap(a),c?goog.string.Const.unwrap(c):"",d,f)};goog.html.legacyconversions={};goog.html.legacyconversions.safeHtmlFromString=function(a){goog.html.legacyconversions.reportCallback_();return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(a,null)};goog.html.legacyconversions.safeStyleFromString=function(a){goog.html.legacyconversions.reportCallback_();return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(a)};
+goog.dom.safe.openInWindow=function(a,b,c,d,e){a=a instanceof goog.html.SafeUrl?a:goog.html.SafeUrl.sanitize(a);return(b||window).open(goog.html.SafeUrl.unwrap(a),c?goog.string.Const.unwrap(c):"",d,e)};goog.html.legacyconversions={};goog.html.legacyconversions.safeHtmlFromString=function(a){goog.html.legacyconversions.reportCallback_();return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(a,null)};goog.html.legacyconversions.safeStyleFromString=function(a){goog.html.legacyconversions.reportCallback_();return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(a)};
 goog.html.legacyconversions.safeStyleSheetFromString=function(a){goog.html.legacyconversions.reportCallback_();return goog.html.SafeStyleSheet.createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(a)};goog.html.legacyconversions.safeUrlFromString=function(a){goog.html.legacyconversions.reportCallback_();return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(a)};goog.html.legacyconversions.trustedResourceUrlFromString=function(a){goog.html.legacyconversions.reportCallback_();return goog.html.TrustedResourceUrl.createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(a)};
 goog.html.legacyconversions.reportCallback_=goog.nullFunction;goog.html.legacyconversions.setReportCallback=function(a){goog.html.legacyconversions.reportCallback_=a};goog.math.Coordinate=function(a,b){this.x=goog.isDef(a)?a:0;this.y=goog.isDef(b)?b:0};goog.math.Coordinate.prototype.clone=function(){return new goog.math.Coordinate(this.x,this.y)};goog.DEBUG&&(goog.math.Coordinate.prototype.toString=function(){return"("+this.x+", "+this.y+")"});goog.math.Coordinate.equals=function(a,b){return a==b?!0:a&&b?a.x==b.x&&a.y==b.y:!1};goog.math.Coordinate.distance=function(a,b){var c=a.x-b.x,d=a.y-b.y;return Math.sqrt(c*c+d*d)};
 goog.math.Coordinate.magnitude=function(a){return Math.sqrt(a.x*a.x+a.y*a.y)};goog.math.Coordinate.azimuth=function(a){return goog.math.angle(0,0,a.x,a.y)};goog.math.Coordinate.squaredDistance=function(a,b){var c=a.x-b.x,d=a.y-b.y;return c*c+d*d};goog.math.Coordinate.difference=function(a,b){return new goog.math.Coordinate(a.x-b.x,a.y-b.y)};goog.math.Coordinate.sum=function(a,b){return new goog.math.Coordinate(a.x+b.x,a.y+b.y)};
 goog.math.Coordinate.prototype.ceil=function(){this.x=Math.ceil(this.x);this.y=Math.ceil(this.y);return this};goog.math.Coordinate.prototype.floor=function(){this.x=Math.floor(this.x);this.y=Math.floor(this.y);return this};goog.math.Coordinate.prototype.round=function(){this.x=Math.round(this.x);this.y=Math.round(this.y);return this};
-goog.math.Coordinate.prototype.translate=function(a,b){a instanceof goog.math.Coordinate?(this.x+=a.x,this.y+=a.y):(this.x+=Number(a),goog.isNumber(b)&&(this.y+=b));return this};goog.math.Coordinate.prototype.scale=function(a,b){var c=goog.isNumber(b)?b:a;this.x*=a;this.y*=c;return this};goog.math.Coordinate.prototype.rotateRadians=function(a,b){var c=b||new goog.math.Coordinate(0,0),d=this.x,f=this.y,g=Math.cos(a),h=Math.sin(a);this.x=(d-c.x)*g-(f-c.y)*h+c.x;this.y=(d-c.x)*h+(f-c.y)*g+c.y};
+goog.math.Coordinate.prototype.translate=function(a,b){a instanceof goog.math.Coordinate?(this.x+=a.x,this.y+=a.y):(this.x+=Number(a),goog.isNumber(b)&&(this.y+=b));return this};goog.math.Coordinate.prototype.scale=function(a,b){var c=goog.isNumber(b)?b:a;this.x*=a;this.y*=c;return this};goog.math.Coordinate.prototype.rotateRadians=function(a,b){var c=b||new goog.math.Coordinate(0,0),d=this.x,e=this.y,f=Math.cos(a),g=Math.sin(a);this.x=(d-c.x)*f-(e-c.y)*g+c.x;this.y=(d-c.x)*g+(e-c.y)*f+c.y};
 goog.math.Coordinate.prototype.rotateDegrees=function(a,b){this.rotateRadians(goog.math.toRadians(a),b)};goog.math.Size=function(a,b){this.width=a;this.height=b};goog.math.Size.equals=function(a,b){return a==b?!0:a&&b?a.width==b.width&&a.height==b.height:!1};goog.math.Size.prototype.clone=function(){return new goog.math.Size(this.width,this.height)};goog.DEBUG&&(goog.math.Size.prototype.toString=function(){return"("+this.width+" x "+this.height+")"});goog.math.Size.prototype.getLongest=function(){return Math.max(this.width,this.height)};
 goog.math.Size.prototype.getShortest=function(){return Math.min(this.width,this.height)};goog.math.Size.prototype.area=function(){return this.width*this.height};goog.math.Size.prototype.perimeter=function(){return 2*(this.width+this.height)};goog.math.Size.prototype.aspectRatio=function(){return this.width/this.height};goog.math.Size.prototype.isEmpty=function(){return!this.area()};goog.math.Size.prototype.ceil=function(){this.width=Math.ceil(this.width);this.height=Math.ceil(this.height);return this};
 goog.math.Size.prototype.fitsInside=function(a){return this.width<=a.width&&this.height<=a.height};goog.math.Size.prototype.floor=function(){this.width=Math.floor(this.width);this.height=Math.floor(this.height);return this};goog.math.Size.prototype.round=function(){this.width=Math.round(this.width);this.height=Math.round(this.height);return this};goog.math.Size.prototype.scale=function(a,b){var c=goog.isNumber(b)?b:a;this.width*=a;this.height*=c;return this};
@@ -220,16 +220,16 @@ goog.math.Size.prototype.scaleToCover=function(a){a=this.aspectRatio()<=a.aspect
 goog.dom.getElementHelper_=function(a,b){return goog.isString(b)?a.getElementById(b):b};goog.dom.getRequiredElement=function(a){return goog.dom.getRequiredElementHelper_(document,a)};goog.dom.getRequiredElementHelper_=function(a,b){goog.asserts.assertString(b);var c=goog.dom.getElementHelper_(a,b);return c=goog.asserts.assertElement(c,"No element found with id: "+b)};goog.dom.$=goog.dom.getElement;
 goog.dom.getElementsByTagNameAndClass=function(a,b,c){return goog.dom.getElementsByTagNameAndClass_(document,a,b,c)};goog.dom.getElementsByClass=function(a,b){var c=b||document;return goog.dom.canUseQuerySelector_(c)?c.querySelectorAll("."+a):goog.dom.getElementsByTagNameAndClass_(document,"*",a,b)};
 goog.dom.getElementByClass=function(a,b){var c=b||document,d=null;return(d=c.getElementsByClassName?c.getElementsByClassName(a)[0]:goog.dom.canUseQuerySelector_(c)?c.querySelector("."+a):goog.dom.getElementsByTagNameAndClass_(document,"*",a,b)[0])||null};goog.dom.getRequiredElementByClass=function(a,b){var c=goog.dom.getElementByClass(a,b);return goog.asserts.assert(c,"No element found with className: "+a)};goog.dom.canUseQuerySelector_=function(a){return!(!a.querySelectorAll||!a.querySelector)};
-goog.dom.getElementsByTagNameAndClass_=function(a,b,c,d){a=d||a;b=b&&"*"!=b?b.toUpperCase():"";if(goog.dom.canUseQuerySelector_(a)&&(b||c))return a.querySelectorAll(b+(c?"."+c:""));if(c&&a.getElementsByClassName){a=a.getElementsByClassName(c);if(b){d={};for(var f=0,g=0,h;h=a[g];g++)b==h.nodeName&&(d[f++]=h);d.length=f;return d}return a}a=a.getElementsByTagName(b||"*");if(c){d={};for(g=f=0;h=a[g];g++)b=h.className,"function"==typeof b.split&&goog.array.contains(b.split(/\s+/),c)&&(d[f++]=h);d.length=
-f;return d}return a};goog.dom.$$=goog.dom.getElementsByTagNameAndClass;goog.dom.setProperties=function(a,b){goog.object.forEach(b,function(b,d){"style"==d?a.style.cssText=b:"class"==d?a.className=b:"for"==d?a.htmlFor=b:goog.dom.DIRECT_ATTRIBUTE_MAP_.hasOwnProperty(d)?a.setAttribute(goog.dom.DIRECT_ATTRIBUTE_MAP_[d],b):goog.string.startsWith(d,"aria-")||goog.string.startsWith(d,"data-")?a.setAttribute(d,b):a[d]=b})};
+goog.dom.getElementsByTagNameAndClass_=function(a,b,c,d){a=d||a;b=b&&"*"!=b?b.toUpperCase():"";if(goog.dom.canUseQuerySelector_(a)&&(b||c))return a.querySelectorAll(b+(c?"."+c:""));if(c&&a.getElementsByClassName){a=a.getElementsByClassName(c);if(b){d={};for(var e=0,f=0,g;g=a[f];f++)b==g.nodeName&&(d[e++]=g);d.length=e;return d}return a}a=a.getElementsByTagName(b||"*");if(c){d={};for(f=e=0;g=a[f];f++)b=g.className,"function"==typeof b.split&&goog.array.contains(b.split(/\s+/),c)&&(d[e++]=g);d.length=
+e;return d}return a};goog.dom.$$=goog.dom.getElementsByTagNameAndClass;goog.dom.setProperties=function(a,b){goog.object.forEach(b,function(b,d){"style"==d?a.style.cssText=b:"class"==d?a.className=b:"for"==d?a.htmlFor=b:goog.dom.DIRECT_ATTRIBUTE_MAP_.hasOwnProperty(d)?a.setAttribute(goog.dom.DIRECT_ATTRIBUTE_MAP_[d],b):goog.string.startsWith(d,"aria-")||goog.string.startsWith(d,"data-")?a.setAttribute(d,b):a[d]=b})};
 goog.dom.DIRECT_ATTRIBUTE_MAP_={cellpadding:"cellPadding",cellspacing:"cellSpacing",colspan:"colSpan",frameborder:"frameBorder",height:"height",maxlength:"maxLength",nonce:"nonce",role:"role",rowspan:"rowSpan",type:"type",usemap:"useMap",valign:"vAlign",width:"width"};goog.dom.getViewportSize=function(a){return goog.dom.getViewportSize_(a||window)};goog.dom.getViewportSize_=function(a){a=a.document;a=goog.dom.isCss1CompatMode_(a)?a.documentElement:a.body;return new goog.math.Size(a.clientWidth,a.clientHeight)};
 goog.dom.getDocumentHeight=function(){return goog.dom.getDocumentHeight_(window)};goog.dom.getDocumentHeightForWindow=function(a){return goog.dom.getDocumentHeight_(a)};
-goog.dom.getDocumentHeight_=function(a){var b=a.document,c=0;if(b){var c=b.body,d=b.documentElement;if(!d||!c)return 0;a=goog.dom.getViewportSize_(a).height;if(goog.dom.isCss1CompatMode_(b)&&d.scrollHeight)c=d.scrollHeight!=a?d.scrollHeight:d.offsetHeight;else{var b=d.scrollHeight,f=d.offsetHeight;d.clientHeight!=f&&(b=c.scrollHeight,f=c.offsetHeight);c=b>a?b>f?b:f:b<f?b:f}}return c};goog.dom.getPageScroll=function(a){return goog.dom.getDomHelper((a||goog.global||window).document).getDocumentScroll()};
+goog.dom.getDocumentHeight_=function(a){var b=a.document,c=0;if(b){var c=b.body,d=b.documentElement;if(!d||!c)return 0;a=goog.dom.getViewportSize_(a).height;if(goog.dom.isCss1CompatMode_(b)&&d.scrollHeight)c=d.scrollHeight!=a?d.scrollHeight:d.offsetHeight;else{var b=d.scrollHeight,e=d.offsetHeight;d.clientHeight!=e&&(b=c.scrollHeight,e=c.offsetHeight);c=b>a?b>e?b:e:b<e?b:e}}return c};goog.dom.getPageScroll=function(a){return goog.dom.getDomHelper((a||goog.global||window).document).getDocumentScroll()};
 goog.dom.getDocumentScroll=function(){return goog.dom.getDocumentScroll_(document)};goog.dom.getDocumentScroll_=function(a){var b=goog.dom.getDocumentScrollElement_(a);a=goog.dom.getWindow_(a);return goog.userAgent.IE&&goog.userAgent.isVersionOrHigher("10")&&a.pageYOffset!=b.scrollTop?new goog.math.Coordinate(b.scrollLeft,b.scrollTop):new goog.math.Coordinate(a.pageXOffset||b.scrollLeft,a.pageYOffset||b.scrollTop)};goog.dom.getDocumentScrollElement=function(){return goog.dom.getDocumentScrollElement_(document)};
 goog.dom.getDocumentScrollElement_=function(a){return a.scrollingElement?a.scrollingElement:!goog.userAgent.WEBKIT&&goog.dom.isCss1CompatMode_(a)?a.documentElement:a.body||a.documentElement};goog.dom.getWindow=function(a){return a?goog.dom.getWindow_(a):window};goog.dom.getWindow_=function(a){return a.parentWindow||a.defaultView};goog.dom.createDom=function(a,b,c){return goog.dom.createDom_(document,arguments)};
-goog.dom.createDom_=function(a,b){var c=b[0],d=b[1];if(!goog.dom.BrowserFeature.CAN_ADD_NAME_OR_TYPE_ATTRIBUTES&&d&&(d.name||d.type)){c=["<",c];d.name&&c.push(' name="',goog.string.htmlEscape(d.name),'"');if(d.type){c.push(' type="',goog.string.htmlEscape(d.type),'"');var f={};goog.object.extend(f,d);delete f.type;d=f}c.push(">");c=c.join("")}c=a.createElement(c);d&&(goog.isString(d)?c.className=d:goog.isArray(d)?c.className=d.join(" "):goog.dom.setProperties(c,d));2<b.length&&goog.dom.append_(a,
-c,b,2);return c};goog.dom.append_=function(a,b,c,d){function f(c){c&&b.appendChild(goog.isString(c)?a.createTextNode(c):c)}for(;d<c.length;d++){var g=c[d];goog.isArrayLike(g)&&!goog.dom.isNodeLike(g)?goog.array.forEach(goog.dom.isNodeList(g)?goog.array.toArray(g):g,f):f(g)}};goog.dom.$dom=goog.dom.createDom;goog.dom.createElement=function(a){return document.createElement(a)};goog.dom.createTextNode=function(a){return document.createTextNode(String(a))};
-goog.dom.createTable=function(a,b,c){return goog.dom.createTable_(document,a,b,!!c)};goog.dom.createTable_=function(a,b,c,d){for(var f=a.createElement(goog.dom.TagName.TABLE),g=f.appendChild(a.createElement(goog.dom.TagName.TBODY)),h=0;h<b;h++){for(var k=a.createElement(goog.dom.TagName.TR),l=0;l<c;l++){var m=a.createElement(goog.dom.TagName.TD);d&&goog.dom.setTextContent(m,goog.string.Unicode.NBSP);k.appendChild(m)}g.appendChild(k)}return f};
+goog.dom.createDom_=function(a,b){var c=b[0],d=b[1];if(!goog.dom.BrowserFeature.CAN_ADD_NAME_OR_TYPE_ATTRIBUTES&&d&&(d.name||d.type)){c=["<",c];d.name&&c.push(' name="',goog.string.htmlEscape(d.name),'"');if(d.type){c.push(' type="',goog.string.htmlEscape(d.type),'"');var e={};goog.object.extend(e,d);delete e.type;d=e}c.push(">");c=c.join("")}c=a.createElement(c);d&&(goog.isString(d)?c.className=d:goog.isArray(d)?c.className=d.join(" "):goog.dom.setProperties(c,d));2<b.length&&goog.dom.append_(a,
+c,b,2);return c};goog.dom.append_=function(a,b,c,d){function e(c){c&&b.appendChild(goog.isString(c)?a.createTextNode(c):c)}for(;d<c.length;d++){var f=c[d];goog.isArrayLike(f)&&!goog.dom.isNodeLike(f)?goog.array.forEach(goog.dom.isNodeList(f)?goog.array.toArray(f):f,e):e(f)}};goog.dom.$dom=goog.dom.createDom;goog.dom.createElement=function(a){return document.createElement(a)};goog.dom.createTextNode=function(a){return document.createTextNode(String(a))};
+goog.dom.createTable=function(a,b,c){return goog.dom.createTable_(document,a,b,!!c)};goog.dom.createTable_=function(a,b,c,d){for(var e=a.createElement(goog.dom.TagName.TABLE),f=e.appendChild(a.createElement(goog.dom.TagName.TBODY)),g=0;g<b;g++){for(var h=a.createElement(goog.dom.TagName.TR),k=0;k<c;k++){var l=a.createElement(goog.dom.TagName.TD);d&&goog.dom.setTextContent(l,goog.string.Unicode.NBSP);h.appendChild(l)}f.appendChild(h)}return e};
 goog.dom.safeHtmlToNode=function(a){return goog.dom.safeHtmlToNode_(document,a)};goog.dom.safeHtmlToNode_=function(a,b){var c=a.createElement(goog.dom.TagName.DIV);goog.dom.BrowserFeature.INNER_HTML_NEEDS_SCOPED_ELEMENT?(goog.dom.safe.setInnerHtml(c,goog.html.SafeHtml.concat(goog.html.SafeHtml.BR,b)),c.removeChild(c.firstChild)):goog.dom.safe.setInnerHtml(c,b);return goog.dom.childrenToNode_(a,c)};goog.dom.htmlToDocumentFragment=function(a){return goog.dom.safeHtmlToNode_(document,goog.html.legacyconversions.safeHtmlFromString(a))};
 goog.dom.childrenToNode_=function(a,b){if(1==b.childNodes.length)return b.removeChild(b.firstChild);for(var c=a.createDocumentFragment();b.firstChild;)c.appendChild(b.firstChild);return c};goog.dom.isCss1CompatMode=function(){return goog.dom.isCss1CompatMode_(document)};goog.dom.isCss1CompatMode_=function(a){return goog.dom.COMPAT_MODE_KNOWN_?goog.dom.ASSUME_STANDARDS_MODE:"CSS1Compat"==a.compatMode};goog.dom.canHaveChildren=function(a){if(a.nodeType!=goog.dom.NodeType.ELEMENT)return!1;switch(a.tagName){case goog.dom.TagName.APPLET:case goog.dom.TagName.AREA:case goog.dom.TagName.BASE:case goog.dom.TagName.BR:case goog.dom.TagName.COL:case goog.dom.TagName.COMMAND:case goog.dom.TagName.EMBED:case goog.dom.TagName.FRAME:case goog.dom.TagName.HR:case goog.dom.TagName.IMG:case goog.dom.TagName.INPUT:case goog.dom.TagName.IFRAME:case goog.dom.TagName.ISINDEX:case goog.dom.TagName.KEYGEN:case goog.dom.TagName.LINK:case goog.dom.TagName.NOFRAMES:case goog.dom.TagName.NOSCRIPT:case goog.dom.TagName.META:case goog.dom.TagName.OBJECT:case goog.dom.TagName.PARAM:case goog.dom.TagName.SCRIPT:case goog.dom.TagName.SOURCE:case goog.dom.TagName.STYLE:case goog.dom.TagName.TRACK:case goog.dom.TagName.WBR:return!1}return!0};
 goog.dom.appendChild=function(a,b){a.appendChild(b)};goog.dom.append=function(a,b){goog.dom.append_(goog.dom.getOwnerDocument(a),a,arguments,1)};goog.dom.removeChildren=function(a){for(var b;b=a.firstChild;)a.removeChild(b)};goog.dom.insertSiblingBefore=function(a,b){b.parentNode&&b.parentNode.insertBefore(a,b)};goog.dom.insertSiblingAfter=function(a,b){b.parentNode&&b.parentNode.insertBefore(a,b.nextSibling)};goog.dom.insertChildAt=function(a,b,c){a.insertBefore(b,a.childNodes[c]||null)};
@@ -239,10 +239,10 @@ goog.dom.getNextElementSibling=function(a){return goog.isDef(a.nextElementSiblin
 goog.dom.getNextNode=function(a){if(!a)return null;if(a.firstChild)return a.firstChild;for(;a&&!a.nextSibling;)a=a.parentNode;return a?a.nextSibling:null};goog.dom.getPreviousNode=function(a){if(!a)return null;if(!a.previousSibling)return a.parentNode;for(a=a.previousSibling;a&&a.lastChild;)a=a.lastChild;return a};goog.dom.isNodeLike=function(a){return goog.isObject(a)&&0<a.nodeType};goog.dom.isElement=function(a){return goog.isObject(a)&&a.nodeType==goog.dom.NodeType.ELEMENT};
 goog.dom.isWindow=function(a){return goog.isObject(a)&&a.window==a};goog.dom.getParentElement=function(a){var b;if(goog.dom.BrowserFeature.CAN_USE_PARENT_ELEMENT_PROPERTY&&!(goog.userAgent.IE&&goog.userAgent.isVersionOrHigher("9")&&!goog.userAgent.isVersionOrHigher("10")&&goog.global.SVGElement&&a instanceof goog.global.SVGElement)&&(b=a.parentElement))return b;b=a.parentNode;return goog.dom.isElement(b)?b:null};
 goog.dom.contains=function(a,b){if(!a||!b)return!1;if(a.contains&&b.nodeType==goog.dom.NodeType.ELEMENT)return a==b||a.contains(b);if("undefined"!=typeof a.compareDocumentPosition)return a==b||!!(a.compareDocumentPosition(b)&16);for(;b&&a!=b;)b=b.parentNode;return b==a};
-goog.dom.compareNodeOrder=function(a,b){if(a==b)return 0;if(a.compareDocumentPosition)return a.compareDocumentPosition(b)&2?1:-1;if(goog.userAgent.IE&&!goog.userAgent.isDocumentModeOrHigher(9)){if(a.nodeType==goog.dom.NodeType.DOCUMENT)return-1;if(b.nodeType==goog.dom.NodeType.DOCUMENT)return 1}if("sourceIndex"in a||a.parentNode&&"sourceIndex"in a.parentNode){var c=a.nodeType==goog.dom.NodeType.ELEMENT,d=b.nodeType==goog.dom.NodeType.ELEMENT;if(c&&d)return a.sourceIndex-b.sourceIndex;var f=a.parentNode,
-g=b.parentNode;return f==g?goog.dom.compareSiblingOrder_(a,b):!c&&goog.dom.contains(f,b)?-1*goog.dom.compareParentsDescendantNodeIe_(a,b):!d&&goog.dom.contains(g,a)?goog.dom.compareParentsDescendantNodeIe_(b,a):(c?a.sourceIndex:f.sourceIndex)-(d?b.sourceIndex:g.sourceIndex)}d=goog.dom.getOwnerDocument(a);c=d.createRange();c.selectNode(a);c.collapse(!0);d=d.createRange();d.selectNode(b);d.collapse(!0);return c.compareBoundaryPoints(goog.global.Range.START_TO_END,d)};
+goog.dom.compareNodeOrder=function(a,b){if(a==b)return 0;if(a.compareDocumentPosition)return a.compareDocumentPosition(b)&2?1:-1;if(goog.userAgent.IE&&!goog.userAgent.isDocumentModeOrHigher(9)){if(a.nodeType==goog.dom.NodeType.DOCUMENT)return-1;if(b.nodeType==goog.dom.NodeType.DOCUMENT)return 1}if("sourceIndex"in a||a.parentNode&&"sourceIndex"in a.parentNode){var c=a.nodeType==goog.dom.NodeType.ELEMENT,d=b.nodeType==goog.dom.NodeType.ELEMENT;if(c&&d)return a.sourceIndex-b.sourceIndex;var e=a.parentNode,
+f=b.parentNode;return e==f?goog.dom.compareSiblingOrder_(a,b):!c&&goog.dom.contains(e,b)?-1*goog.dom.compareParentsDescendantNodeIe_(a,b):!d&&goog.dom.contains(f,a)?goog.dom.compareParentsDescendantNodeIe_(b,a):(c?a.sourceIndex:e.sourceIndex)-(d?b.sourceIndex:f.sourceIndex)}d=goog.dom.getOwnerDocument(a);c=d.createRange();c.selectNode(a);c.collapse(!0);d=d.createRange();d.selectNode(b);d.collapse(!0);return c.compareBoundaryPoints(goog.global.Range.START_TO_END,d)};
 goog.dom.compareParentsDescendantNodeIe_=function(a,b){var c=a.parentNode;if(c==b)return-1;for(var d=b;d.parentNode!=c;)d=d.parentNode;return goog.dom.compareSiblingOrder_(d,a)};goog.dom.compareSiblingOrder_=function(a,b){for(var c=b;c=c.previousSibling;)if(c==a)return-1;return 1};
-goog.dom.findCommonAncestor=function(a){var b,c=arguments.length;if(!c)return null;if(1==c)return arguments[0];var d=[],f=Infinity;for(b=0;b<c;b++){for(var g=[],h=arguments[b];h;)g.unshift(h),h=h.parentNode;d.push(g);f=Math.min(f,g.length)}g=null;for(b=0;b<f;b++){for(var h=d[0][b],k=1;k<c;k++)if(h!=d[k][b])return g;g=h}return g};goog.dom.getOwnerDocument=function(a){goog.asserts.assert(a,"Node cannot be null or undefined.");return a.nodeType==goog.dom.NodeType.DOCUMENT?a:a.ownerDocument||a.document};
+goog.dom.findCommonAncestor=function(a){var b,c=arguments.length;if(!c)return null;if(1==c)return arguments[0];var d=[],e=Infinity;for(b=0;b<c;b++){for(var f=[],g=arguments[b];g;)f.unshift(g),g=g.parentNode;d.push(f);e=Math.min(e,f.length)}f=null;for(b=0;b<e;b++){for(var g=d[0][b],h=1;h<c;h++)if(g!=d[h][b])return f;f=g}return f};goog.dom.getOwnerDocument=function(a){goog.asserts.assert(a,"Node cannot be null or undefined.");return a.nodeType==goog.dom.NodeType.DOCUMENT?a:a.ownerDocument||a.document};
 goog.dom.getFrameContentDocument=function(a){return a.contentDocument||a.contentWindow.document};goog.dom.getFrameContentWindow=function(a){try{return a.contentWindow||(a.contentDocument?goog.dom.getWindow(a.contentDocument):null)}catch(b){}return null};
 goog.dom.setTextContent=function(a,b){goog.asserts.assert(null!=a,"goog.dom.setTextContent expects a non-null value for node");if("textContent"in a)a.textContent=b;else if(a.nodeType==goog.dom.NodeType.TEXT)a.data=b;else if(a.firstChild&&a.firstChild.nodeType==goog.dom.NodeType.TEXT){for(;a.lastChild!=a.firstChild;)a.removeChild(a.lastChild);a.firstChild.data=b}else{goog.dom.removeChildren(a);var c=goog.dom.getOwnerDocument(a);a.appendChild(c.createTextNode(String(b)))}};
 goog.dom.getOuterHtml=function(a){goog.asserts.assert(null!==a,"goog.dom.getOuterHtml expects a non-null value for element");if("outerHTML"in a)return a.outerHTML;var b=goog.dom.getOwnerDocument(a).createElement(goog.dom.TagName.DIV);b.appendChild(a.cloneNode(!0));return b.innerHTML};goog.dom.findNode=function(a,b){var c=[];return goog.dom.findNodes_(a,b,c,!0)?c[0]:void 0};goog.dom.findNodes=function(a,b){var c=[];goog.dom.findNodes_(a,b,c,!1);return c};
@@ -251,9 +251,9 @@ goog.dom.isFocusable=function(a){var b;return(b=goog.dom.nativelySupportsFocus_(
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 goog.dom.getTextContent=function(a){if(goog.dom.BrowserFeature.CAN_USE_INNER_TEXT&&null!==a&&"innerText"in a)a=goog.string.canonicalizeNewlines(a.innerText);else{var b=[];goog.dom.getTextContent_(a,b,!0);a=b.join("")}a=a.replace(/ \xAD /g," ").replace(/\xAD/g,"");a=a.replace(/\u200B/g,"");goog.dom.BrowserFeature.CAN_USE_INNER_TEXT||(a=a.replace(/ +/g," "));" "!=a&&(a=a.replace(/^\s*/,""));return a};goog.dom.getRawTextContent=function(a){var b=[];goog.dom.getTextContent_(a,b,!1);return b.join("")};
 goog.dom.getTextContent_=function(a,b,c){if(!(a.nodeName in goog.dom.TAGS_TO_IGNORE_))if(a.nodeType==goog.dom.NodeType.TEXT)c?b.push(String(a.nodeValue).replace(/(\r\n|\r|\n)/g,"")):b.push(a.nodeValue);else if(a.nodeName in goog.dom.PREDEFINED_TAG_VALUES_)b.push(goog.dom.PREDEFINED_TAG_VALUES_[a.nodeName]);else for(a=a.firstChild;a;)goog.dom.getTextContent_(a,b,c),a=a.nextSibling};goog.dom.getNodeTextLength=function(a){return goog.dom.getTextContent(a).length};
-goog.dom.getNodeTextOffset=function(a,b){for(var c=b||goog.dom.getOwnerDocument(a).body,d=[];a&&a!=c;){for(var f=a;f=f.previousSibling;)d.unshift(goog.dom.getTextContent(f));a=a.parentNode}return goog.string.trimLeft(d.join("")).replace(/ +/g," ").length};
-goog.dom.getNodeAtOffset=function(a,b,c){a=[a];for(var d=0,f=null;0<a.length&&d<b;)if(f=a.pop(),!(f.nodeName in goog.dom.TAGS_TO_IGNORE_))if(f.nodeType==goog.dom.NodeType.TEXT)var g=f.nodeValue.replace(/(\r\n|\r|\n)/g,"").replace(/ +/g," "),d=d+g.length;else if(f.nodeName in goog.dom.PREDEFINED_TAG_VALUES_)d+=goog.dom.PREDEFINED_TAG_VALUES_[f.nodeName].length;else for(g=f.childNodes.length-1;0<=g;g--)a.push(f.childNodes[g]);goog.isObject(c)&&(c.remainder=f?f.nodeValue.length+b-d-1:0,c.node=f);return f};
-goog.dom.isNodeList=function(a){if(a&&"number"==typeof a.length){if(goog.isObject(a))return"function"==typeof a.item||"string"==typeof a.item;if(goog.isFunction(a))return"function"==typeof a.item}return!1};goog.dom.getAncestorByTagNameAndClass=function(a,b,c,d){if(!b&&!c)return null;var f=b?b.toUpperCase():null;return goog.dom.getAncestor(a,function(a){return(!f||a.nodeName==f)&&(!c||goog.isString(a.className)&&goog.array.contains(a.className.split(/\s+/),c))},!0,d)};
+goog.dom.getNodeTextOffset=function(a,b){for(var c=b||goog.dom.getOwnerDocument(a).body,d=[];a&&a!=c;){for(var e=a;e=e.previousSibling;)d.unshift(goog.dom.getTextContent(e));a=a.parentNode}return goog.string.trimLeft(d.join("")).replace(/ +/g," ").length};
+goog.dom.getNodeAtOffset=function(a,b,c){a=[a];for(var d=0,e=null;0<a.length&&d<b;)if(e=a.pop(),!(e.nodeName in goog.dom.TAGS_TO_IGNORE_))if(e.nodeType==goog.dom.NodeType.TEXT)var f=e.nodeValue.replace(/(\r\n|\r|\n)/g,"").replace(/ +/g," "),d=d+f.length;else if(e.nodeName in goog.dom.PREDEFINED_TAG_VALUES_)d+=goog.dom.PREDEFINED_TAG_VALUES_[e.nodeName].length;else for(f=e.childNodes.length-1;0<=f;f--)a.push(e.childNodes[f]);goog.isObject(c)&&(c.remainder=e?e.nodeValue.length+b-d-1:0,c.node=e);return e};
+goog.dom.isNodeList=function(a){if(a&&"number"==typeof a.length){if(goog.isObject(a))return"function"==typeof a.item||"string"==typeof a.item;if(goog.isFunction(a))return"function"==typeof a.item}return!1};goog.dom.getAncestorByTagNameAndClass=function(a,b,c,d){if(!b&&!c)return null;var e=b?b.toUpperCase():null;return goog.dom.getAncestor(a,function(a){return(!e||a.nodeName==e)&&(!c||goog.isString(a.className)&&goog.array.contains(a.className.split(/\s+/),c))},!0,d)};
 goog.dom.getAncestorByClass=function(a,b,c){return goog.dom.getAncestorByTagNameAndClass(a,null,b,c)};goog.dom.getAncestor=function(a,b,c,d){c||(a=a.parentNode);for(c=0;a&&(null==d||c<=d);){goog.asserts.assert("parentNode"!=a.name);if(b(a))return a;a=a.parentNode;c++}return null};goog.dom.getActiveElement=function(a){try{return a&&a.activeElement}catch(b){}return null};
 goog.dom.getPixelRatio=function(){var a=goog.dom.getWindow();return goog.isDef(a.devicePixelRatio)?a.devicePixelRatio:a.matchMedia?goog.dom.matchesPixelRatio_(.75)||goog.dom.matchesPixelRatio_(1.5)||goog.dom.matchesPixelRatio_(2)||goog.dom.matchesPixelRatio_(3)||1:1};goog.dom.matchesPixelRatio_=function(a){return goog.dom.getWindow().matchMedia("(-webkit-min-device-pixel-ratio: "+a+"),(min--moz-device-pixel-ratio: "+a+"),(min-resolution: "+a+"dppx)").matches?a:0};
 goog.dom.DomHelper=function(a){this.document_=a||goog.global.document||document};goog.dom.DomHelper.prototype.getDomHelper=goog.dom.getDomHelper;goog.dom.DomHelper.prototype.setDocument=function(a){this.document_=a};goog.dom.DomHelper.prototype.getDocument=function(){return this.document_};goog.dom.DomHelper.prototype.getElement=function(a){return goog.dom.getElementHelper_(this.document_,a)};
@@ -279,8 +279,8 @@ goog.math.Box.prototype.round=function(){this.top=Math.round(this.top);this.righ
 goog.math.Box.prototype.scale=function(a,b){var c=goog.isNumber(b)?b:a;this.left*=a;this.right*=a;this.top*=c;this.bottom*=c;return this};goog.math.Rect=function(a,b,c,d){this.left=a;this.top=b;this.width=c;this.height=d};goog.math.Rect.prototype.clone=function(){return new goog.math.Rect(this.left,this.top,this.width,this.height)};goog.math.Rect.prototype.toBox=function(){return new goog.math.Box(this.top,this.left+this.width,this.top+this.height,this.left)};goog.math.Rect.createFromPositionAndSize=function(a,b){return new goog.math.Rect(a.x,a.y,b.width,b.height)};
 goog.math.Rect.createFromBox=function(a){return new goog.math.Rect(a.left,a.top,a.right-a.left,a.bottom-a.top)};goog.DEBUG&&(goog.math.Rect.prototype.toString=function(){return"("+this.left+", "+this.top+" - "+this.width+"w x "+this.height+"h)"});goog.math.Rect.equals=function(a,b){return a==b?!0:a&&b?a.left==b.left&&a.width==b.width&&a.top==b.top&&a.height==b.height:!1};
 goog.math.Rect.prototype.intersection=function(a){var b=Math.max(this.left,a.left),c=Math.min(this.left+this.width,a.left+a.width);if(b<=c){var d=Math.max(this.top,a.top);a=Math.min(this.top+this.height,a.top+a.height);if(d<=a)return this.left=b,this.top=d,this.width=c-b,this.height=a-d,!0}return!1};
-goog.math.Rect.intersection=function(a,b){var c=Math.max(a.left,b.left),d=Math.min(a.left+a.width,b.left+b.width);if(c<=d){var f=Math.max(a.top,b.top),g=Math.min(a.top+a.height,b.top+b.height);if(f<=g)return new goog.math.Rect(c,f,d-c,g-f)}return null};goog.math.Rect.intersects=function(a,b){return a.left<=b.left+b.width&&b.left<=a.left+a.width&&a.top<=b.top+b.height&&b.top<=a.top+a.height};goog.math.Rect.prototype.intersects=function(a){return goog.math.Rect.intersects(this,a)};
-goog.math.Rect.difference=function(a,b){var c=goog.math.Rect.intersection(a,b);if(!c||!c.height||!c.width)return[a.clone()];var c=[],d=a.top,f=a.height,g=a.left+a.width,h=a.top+a.height,k=b.left+b.width,l=b.top+b.height;b.top>a.top&&(c.push(new goog.math.Rect(a.left,a.top,a.width,b.top-a.top)),d=b.top,f-=b.top-a.top);l<h&&(c.push(new goog.math.Rect(a.left,l,a.width,h-l)),f=l-d);b.left>a.left&&c.push(new goog.math.Rect(a.left,d,b.left-a.left,f));k<g&&c.push(new goog.math.Rect(k,d,g-k,f));return c};
+goog.math.Rect.intersection=function(a,b){var c=Math.max(a.left,b.left),d=Math.min(a.left+a.width,b.left+b.width);if(c<=d){var e=Math.max(a.top,b.top),f=Math.min(a.top+a.height,b.top+b.height);if(e<=f)return new goog.math.Rect(c,e,d-c,f-e)}return null};goog.math.Rect.intersects=function(a,b){return a.left<=b.left+b.width&&b.left<=a.left+a.width&&a.top<=b.top+b.height&&b.top<=a.top+a.height};goog.math.Rect.prototype.intersects=function(a){return goog.math.Rect.intersects(this,a)};
+goog.math.Rect.difference=function(a,b){var c=goog.math.Rect.intersection(a,b);if(!c||!c.height||!c.width)return[a.clone()];var c=[],d=a.top,e=a.height,f=a.left+a.width,g=a.top+a.height,h=b.left+b.width,k=b.top+b.height;b.top>a.top&&(c.push(new goog.math.Rect(a.left,a.top,a.width,b.top-a.top)),d=b.top,e-=b.top-a.top);k<g&&(c.push(new goog.math.Rect(a.left,k,a.width,g-k)),e=k-d);b.left>a.left&&c.push(new goog.math.Rect(a.left,d,b.left-a.left,e));h<f&&c.push(new goog.math.Rect(h,d,f-h,e));return c};
 goog.math.Rect.prototype.difference=function(a){return goog.math.Rect.difference(this,a)};goog.math.Rect.prototype.boundingRect=function(a){var b=Math.max(this.left+this.width,a.left+a.width),c=Math.max(this.top+this.height,a.top+a.height);this.left=Math.min(this.left,a.left);this.top=Math.min(this.top,a.top);this.width=b-this.left;this.height=c-this.top};goog.math.Rect.boundingRect=function(a,b){if(!a||!b)return null;var c=a.clone();c.boundingRect(b);return c};
 goog.math.Rect.prototype.contains=function(a){return a instanceof goog.math.Rect?this.left<=a.left&&this.left+this.width>=a.left+a.width&&this.top<=a.top&&this.top+this.height>=a.top+a.height:a.x>=this.left&&a.x<=this.left+this.width&&a.y>=this.top&&a.y<=this.top+this.height};goog.math.Rect.prototype.squaredDistance=function(a){var b=a.x<this.left?this.left-a.x:Math.max(a.x-(this.left+this.width),0);a=a.y<this.top?this.top-a.y:Math.max(a.y-(this.top+this.height),0);return b*b+a*a};
 goog.math.Rect.prototype.distance=function(a){return Math.sqrt(this.squaredDistance(a))};goog.math.Rect.prototype.getSize=function(){return new goog.math.Size(this.width,this.height)};goog.math.Rect.prototype.getTopLeft=function(){return new goog.math.Coordinate(this.left,this.top)};goog.math.Rect.prototype.getCenter=function(){return new goog.math.Coordinate(this.left+this.width/2,this.top+this.height/2)};
@@ -297,35 +297,35 @@ goog.style.getClientViewportElement=function(a){a=a?goog.dom.getOwnerDocument(a)
 goog.style.getBoundingClientRect_=function(a){var b;try{b=a.getBoundingClientRect()}catch(c){return{left:0,top:0,right:0,bottom:0}}goog.userAgent.IE&&a.ownerDocument.body&&(a=a.ownerDocument,b.left-=a.documentElement.clientLeft+a.body.clientLeft,b.top-=a.documentElement.clientTop+a.body.clientTop);return b};
 goog.style.getOffsetParent=function(a){if(goog.userAgent.IE&&!goog.userAgent.isDocumentModeOrHigher(8))return goog.asserts.assert(a&&"offsetParent"in a),a.offsetParent;var b=goog.dom.getOwnerDocument(a),c=goog.style.getStyle_(a,"position"),d="fixed"==c||"absolute"==c;for(a=a.parentNode;a&&a!=b;a=a.parentNode)if(a.nodeType==goog.dom.NodeType.DOCUMENT_FRAGMENT&&a.host&&(a=a.host),c=goog.style.getStyle_(a,"position"),d=d&&"static"==c&&a!=b.documentElement&&a!=b.body,!d&&(a.scrollWidth>a.clientWidth||
 a.scrollHeight>a.clientHeight||"fixed"==c||"absolute"==c||"relative"==c))return a;return null};
-goog.style.getVisibleRectForElement=function(a){for(var b=new goog.math.Box(0,Infinity,Infinity,0),c=goog.dom.getDomHelper(a),d=c.getDocument().body,f=c.getDocument().documentElement,g=c.getDocumentScrollElement();a=goog.style.getOffsetParent(a);)if(!(goog.userAgent.IE&&0==a.clientWidth||goog.userAgent.WEBKIT&&0==a.clientHeight&&a==d)&&a!=d&&a!=f&&"visible"!=goog.style.getStyle_(a,"overflow")){var h=goog.style.getPageOffset(a),k=goog.style.getClientLeftTop(a);h.x+=k.x;h.y+=k.y;b.top=Math.max(b.top,
-h.y);b.right=Math.min(b.right,h.x+a.clientWidth);b.bottom=Math.min(b.bottom,h.y+a.clientHeight);b.left=Math.max(b.left,h.x)}d=g.scrollLeft;g=g.scrollTop;b.left=Math.max(b.left,d);b.top=Math.max(b.top,g);c=c.getViewportSize();b.right=Math.min(b.right,d+c.width);b.bottom=Math.min(b.bottom,g+c.height);return 0<=b.top&&0<=b.left&&b.bottom>b.top&&b.right>b.left?b:null};
-goog.style.getContainerOffsetToScrollInto=function(a,b,c){var d=b||goog.dom.getDocumentScrollElement(),f=goog.style.getPageOffset(a),g=goog.style.getPageOffset(d),h=goog.style.getBorderBox(d);d==goog.dom.getDocumentScrollElement()?(b=f.x-d.scrollLeft,f=f.y-d.scrollTop,goog.userAgent.IE&&!goog.userAgent.isDocumentModeOrHigher(10)&&(b+=h.left,f+=h.top)):(b=f.x-g.x-h.left,f=f.y-g.y-h.top);h=d.clientWidth-a.offsetWidth;a=d.clientHeight-a.offsetHeight;g=d.scrollLeft;d=d.scrollTop;c?(g+=b-h/2,d+=f-a/2):
-(g+=Math.min(b,Math.max(b-h,0)),d+=Math.min(f,Math.max(f-a,0)));return new goog.math.Coordinate(g,d)};goog.style.scrollIntoContainerView=function(a,b,c){b=b||goog.dom.getDocumentScrollElement();a=goog.style.getContainerOffsetToScrollInto(a,b,c);b.scrollLeft=a.x;b.scrollTop=a.y};goog.style.getClientLeftTop=function(a){return new goog.math.Coordinate(a.clientLeft,a.clientTop)};
+goog.style.getVisibleRectForElement=function(a){for(var b=new goog.math.Box(0,Infinity,Infinity,0),c=goog.dom.getDomHelper(a),d=c.getDocument().body,e=c.getDocument().documentElement,f=c.getDocumentScrollElement();a=goog.style.getOffsetParent(a);)if(!(goog.userAgent.IE&&0==a.clientWidth||goog.userAgent.WEBKIT&&0==a.clientHeight&&a==d)&&a!=d&&a!=e&&"visible"!=goog.style.getStyle_(a,"overflow")){var g=goog.style.getPageOffset(a),h=goog.style.getClientLeftTop(a);g.x+=h.x;g.y+=h.y;b.top=Math.max(b.top,
+g.y);b.right=Math.min(b.right,g.x+a.clientWidth);b.bottom=Math.min(b.bottom,g.y+a.clientHeight);b.left=Math.max(b.left,g.x)}d=f.scrollLeft;f=f.scrollTop;b.left=Math.max(b.left,d);b.top=Math.max(b.top,f);c=c.getViewportSize();b.right=Math.min(b.right,d+c.width);b.bottom=Math.min(b.bottom,f+c.height);return 0<=b.top&&0<=b.left&&b.bottom>b.top&&b.right>b.left?b:null};
+goog.style.getContainerOffsetToScrollInto=function(a,b,c){var d=b||goog.dom.getDocumentScrollElement(),e=goog.style.getPageOffset(a),f=goog.style.getPageOffset(d),g=goog.style.getBorderBox(d);d==goog.dom.getDocumentScrollElement()?(b=e.x-d.scrollLeft,e=e.y-d.scrollTop,goog.userAgent.IE&&!goog.userAgent.isDocumentModeOrHigher(10)&&(b+=g.left,e+=g.top)):(b=e.x-f.x-g.left,e=e.y-f.y-g.top);g=d.clientWidth-a.offsetWidth;a=d.clientHeight-a.offsetHeight;f=d.scrollLeft;d=d.scrollTop;c?(f+=b-g/2,d+=e-a/2):
+(f+=Math.min(b,Math.max(b-g,0)),d+=Math.min(e,Math.max(e-a,0)));return new goog.math.Coordinate(f,d)};goog.style.scrollIntoContainerView=function(a,b,c){b=b||goog.dom.getDocumentScrollElement();a=goog.style.getContainerOffsetToScrollInto(a,b,c);b.scrollLeft=a.x;b.scrollTop=a.y};goog.style.getClientLeftTop=function(a){return new goog.math.Coordinate(a.clientLeft,a.clientTop)};
 goog.style.getPageOffset=function(a){var b=goog.dom.getOwnerDocument(a);goog.asserts.assertObject(a,"Parameter is required");var c=new goog.math.Coordinate(0,0),d=goog.style.getClientViewportElement(b);if(a==d)return c;a=goog.style.getBoundingClientRect_(a);b=goog.dom.getDomHelper(b).getDocumentScroll();c.x=a.left+b.x;c.y=a.top+b.y;return c};goog.style.getPageOffsetLeft=function(a){return goog.style.getPageOffset(a).x};goog.style.getPageOffsetTop=function(a){return goog.style.getPageOffset(a).y};
-goog.style.getFramedPageOffset=function(a,b){var c=new goog.math.Coordinate(0,0),d=goog.dom.getWindow(goog.dom.getOwnerDocument(a));if(!goog.reflect.canAccessProperty(d,"parent"))return c;var f=a;do{var g=d==b?goog.style.getPageOffset(f):goog.style.getClientPositionForElement_(goog.asserts.assert(f));c.x+=g.x;c.y+=g.y}while(d&&d!=b&&d!=d.parent&&(f=d.frameElement)&&(d=d.parent));return c};
+goog.style.getFramedPageOffset=function(a,b){var c=new goog.math.Coordinate(0,0),d=goog.dom.getWindow(goog.dom.getOwnerDocument(a));if(!goog.reflect.canAccessProperty(d,"parent"))return c;var e=a;do{var f=d==b?goog.style.getPageOffset(e):goog.style.getClientPositionForElement_(goog.asserts.assert(e));c.x+=f.x;c.y+=f.y}while(d&&d!=b&&d!=d.parent&&(e=d.frameElement)&&(d=d.parent));return c};
 goog.style.translateRectForAnotherFrame=function(a,b,c){if(b.getDocument()!=c.getDocument()){var d=b.getDocument().body;c=goog.style.getFramedPageOffset(d,c.getWindow());c=goog.math.Coordinate.difference(c,goog.style.getPageOffset(d));!goog.userAgent.IE||goog.userAgent.isDocumentModeOrHigher(9)||b.isCss1CompatMode()||(c=goog.math.Coordinate.difference(c,b.getDocumentScroll()));a.left+=c.x;a.top+=c.y}};
 goog.style.getRelativePosition=function(a,b){var c=goog.style.getClientPosition(a),d=goog.style.getClientPosition(b);return new goog.math.Coordinate(c.x-d.x,c.y-d.y)};goog.style.getClientPositionForElement_=function(a){a=goog.style.getBoundingClientRect_(a);return new goog.math.Coordinate(a.left,a.top)};
 goog.style.getClientPosition=function(a){goog.asserts.assert(a);if(a.nodeType==goog.dom.NodeType.ELEMENT)return goog.style.getClientPositionForElement_(a);a=a.changedTouches?a.changedTouches[0]:a;return new goog.math.Coordinate(a.clientX,a.clientY)};goog.style.setPageOffset=function(a,b,c){var d=goog.style.getPageOffset(a);b instanceof goog.math.Coordinate&&(c=b.y,b=b.x);b=goog.asserts.assertNumber(b)-d.x;goog.style.setPosition(a,a.offsetLeft+b,a.offsetTop+(Number(c)-d.y))};
 goog.style.setSize=function(a,b,c){if(b instanceof goog.math.Size)c=b.height,b=b.width;else if(void 0==c)throw Error("missing height argument");goog.style.setWidth(a,b);goog.style.setHeight(a,c)};goog.style.getPixelStyleValue_=function(a,b){"number"==typeof a&&(a=(b?Math.round(a):a)+"px");return a};goog.style.setHeight=function(a,b){a.style.height=goog.style.getPixelStyleValue_(b,!0)};goog.style.setWidth=function(a,b){a.style.width=goog.style.getPixelStyleValue_(b,!0)};
-goog.style.getSize=function(a){return goog.style.evaluateWithTemporaryDisplay_(goog.style.getSizeWithDisplay_,a)};goog.style.evaluateWithTemporaryDisplay_=function(a,b){if("none"!=goog.style.getStyle_(b,"display"))return a(b);var c=b.style,d=c.display,f=c.visibility,g=c.position;c.visibility="hidden";c.position="absolute";c.display="inline";var h=a(b);c.display=d;c.position=g;c.visibility=f;return h};
+goog.style.getSize=function(a){return goog.style.evaluateWithTemporaryDisplay_(goog.style.getSizeWithDisplay_,a)};goog.style.evaluateWithTemporaryDisplay_=function(a,b){if("none"!=goog.style.getStyle_(b,"display"))return a(b);var c=b.style,d=c.display,e=c.visibility,f=c.position;c.visibility="hidden";c.position="absolute";c.display="inline";var g=a(b);c.display=d;c.position=f;c.visibility=e;return g};
 goog.style.getSizeWithDisplay_=function(a){var b=a.offsetWidth,c=a.offsetHeight,d=goog.userAgent.WEBKIT&&!b&&!c;return goog.isDef(b)&&!d||!a.getBoundingClientRect?new goog.math.Size(b,c):(a=goog.style.getBoundingClientRect_(a),new goog.math.Size(a.right-a.left,a.bottom-a.top))};goog.style.getTransformedSize=function(a){if(!a.getBoundingClientRect)return null;a=goog.style.evaluateWithTemporaryDisplay_(goog.style.getBoundingClientRect_,a);return new goog.math.Size(a.right-a.left,a.bottom-a.top)};
 goog.style.getBounds=function(a){var b=goog.style.getPageOffset(a);a=goog.style.getSize(a);return new goog.math.Rect(b.x,b.y,a.width,a.height)};goog.style.toCamelCase=function(a){return goog.string.toCamelCase(String(a))};goog.style.toSelectorCase=function(a){return goog.string.toSelectorCase(a)};
 goog.style.getOpacity=function(a){goog.asserts.assert(a);var b=a.style;a="";"opacity"in b?a=b.opacity:"MozOpacity"in b?a=b.MozOpacity:"filter"in b&&(b=b.filter.match(/alpha\(opacity=([\d.]+)\)/))&&(a=String(b[1]/100));return""==a?a:Number(a)};goog.style.setOpacity=function(a,b){goog.asserts.assert(a);var c=a.style;"opacity"in c?c.opacity=b:"MozOpacity"in c?c.MozOpacity=b:"filter"in c&&(c.filter=""===b?"":"alpha(opacity="+100*Number(b)+")")};
 goog.style.setTransparentBackgroundImage=function(a,b){var c=a.style;goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("8")?c.filter='progid:DXImageTransform.Microsoft.AlphaImageLoader(src="'+b+'", sizingMethod="crop")':(c.backgroundImage="url("+b+")",c.backgroundPosition="top left",c.backgroundRepeat="no-repeat")};goog.style.clearTransparentBackgroundImage=function(a){a=a.style;"filter"in a?a.filter="":a.backgroundImage="none"};
 goog.style.showElement=function(a,b){goog.style.setElementShown(a,b)};goog.style.setElementShown=function(a,b){a.style.display=b?"":"none"};goog.style.isElementShown=function(a){return"none"!=a.style.display};goog.style.installStyles=function(a,b){return goog.style.installSafeStyleSheet(goog.html.legacyconversions.safeStyleSheetFromString(a),b)};
-goog.style.installSafeStyleSheet=function(a,b){var c=goog.dom.getDomHelper(b),d=null,f=c.getDocument();goog.userAgent.IE&&f.createStyleSheet?(d=f.createStyleSheet(),goog.style.setSafeStyleSheet(d,a)):(f=c.getElementsByTagNameAndClass(goog.dom.TagName.HEAD)[0],f||(d=c.getElementsByTagNameAndClass(goog.dom.TagName.BODY)[0],f=c.createDom(goog.dom.TagName.HEAD),d.parentNode.insertBefore(f,d)),d=c.createDom(goog.dom.TagName.STYLE),goog.style.setSafeStyleSheet(d,a),c.appendChild(f,d));return d};
+goog.style.installSafeStyleSheet=function(a,b){var c=goog.dom.getDomHelper(b),d=null,e=c.getDocument();goog.userAgent.IE&&e.createStyleSheet?(d=e.createStyleSheet(),goog.style.setSafeStyleSheet(d,a)):(e=c.getElementsByTagNameAndClass(goog.dom.TagName.HEAD)[0],e||(d=c.getElementsByTagNameAndClass(goog.dom.TagName.BODY)[0],e=c.createDom(goog.dom.TagName.HEAD),d.parentNode.insertBefore(e,d)),d=c.createDom(goog.dom.TagName.STYLE),goog.style.setSafeStyleSheet(d,a),c.appendChild(e,d));return d};
 goog.style.uninstallStyles=function(a){goog.dom.removeNode(a.ownerNode||a.owningElement||a)};goog.style.setStyles=function(a,b){goog.style.setSafeStyleSheet(a,goog.html.legacyconversions.safeStyleSheetFromString(b))};goog.style.setSafeStyleSheet=function(a,b){var c=goog.html.SafeStyleSheet.unwrap(b);goog.userAgent.IE&&goog.isDef(a.cssText)?a.cssText=c:goog.dom.setTextContent(a,c)};
 goog.style.setPreWrap=function(a){a=a.style;goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("8")?(a.whiteSpace="pre",a.wordWrap="break-word"):a.whiteSpace=goog.userAgent.GECKO?"-moz-pre-wrap":"pre-wrap"};goog.style.setInlineBlock=function(a){a=a.style;a.position="relative";goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("8")?(a.zoom="1",a.display="inline"):a.display="inline-block"};goog.style.isRightToLeft=function(a){return"rtl"==goog.style.getStyle_(a,"direction")};
 goog.style.unselectableStyle_=goog.userAgent.GECKO?"MozUserSelect":goog.userAgent.WEBKIT||goog.userAgent.EDGE?"WebkitUserSelect":null;goog.style.isUnselectable=function(a){return goog.style.unselectableStyle_?"none"==a.style[goog.style.unselectableStyle_].toLowerCase():goog.userAgent.IE||goog.userAgent.OPERA?"on"==a.getAttribute("unselectable"):!1};
-goog.style.setUnselectable=function(a,b,c){c=c?null:a.getElementsByTagName("*");var d=goog.style.unselectableStyle_;if(d){if(b=b?"none":"",a.style&&(a.style[d]=b),c){a=0;for(var f;f=c[a];a++)f.style&&(f.style[d]=b)}}else if(goog.userAgent.IE||goog.userAgent.OPERA)if(b=b?"on":"",a.setAttribute("unselectable",b),c)for(a=0;f=c[a];a++)f.setAttribute("unselectable",b)};goog.style.getBorderBoxSize=function(a){return new goog.math.Size(a.offsetWidth,a.offsetHeight)};
-goog.style.setBorderBoxSize=function(a,b){var c=goog.dom.getOwnerDocument(a),d=goog.dom.getDomHelper(c).isCss1CompatMode();if(!goog.userAgent.IE||goog.userAgent.isVersionOrHigher("10")||d&&goog.userAgent.isVersionOrHigher("8"))goog.style.setBoxSizingSize_(a,b,"border-box");else if(c=a.style,d){var d=goog.style.getPaddingBox(a),f=goog.style.getBorderBox(a);c.pixelWidth=b.width-f.left-d.left-d.right-f.right;c.pixelHeight=b.height-f.top-d.top-d.bottom-f.bottom}else c.pixelWidth=b.width,c.pixelHeight=
+goog.style.setUnselectable=function(a,b,c){c=c?null:a.getElementsByTagName("*");var d=goog.style.unselectableStyle_;if(d){if(b=b?"none":"",a.style&&(a.style[d]=b),c){a=0;for(var e;e=c[a];a++)e.style&&(e.style[d]=b)}}else if(goog.userAgent.IE||goog.userAgent.OPERA)if(b=b?"on":"",a.setAttribute("unselectable",b),c)for(a=0;e=c[a];a++)e.setAttribute("unselectable",b)};goog.style.getBorderBoxSize=function(a){return new goog.math.Size(a.offsetWidth,a.offsetHeight)};
+goog.style.setBorderBoxSize=function(a,b){var c=goog.dom.getOwnerDocument(a),d=goog.dom.getDomHelper(c).isCss1CompatMode();if(!goog.userAgent.IE||goog.userAgent.isVersionOrHigher("10")||d&&goog.userAgent.isVersionOrHigher("8"))goog.style.setBoxSizingSize_(a,b,"border-box");else if(c=a.style,d){var d=goog.style.getPaddingBox(a),e=goog.style.getBorderBox(a);c.pixelWidth=b.width-e.left-d.left-d.right-e.right;c.pixelHeight=b.height-e.top-d.top-d.bottom-e.bottom}else c.pixelWidth=b.width,c.pixelHeight=
 b.height};
 goog.style.getContentBoxSize=function(a){var b=goog.dom.getOwnerDocument(a),c=goog.userAgent.IE&&a.currentStyle;if(c&&goog.dom.getDomHelper(b).isCss1CompatMode()&&"auto"!=c.width&&"auto"!=c.height&&!c.boxSizing)return b=goog.style.getIePixelValue_(a,c.width,"width","pixelWidth"),a=goog.style.getIePixelValue_(a,c.height,"height","pixelHeight"),new goog.math.Size(b,a);c=goog.style.getBorderBoxSize(a);b=goog.style.getPaddingBox(a);a=goog.style.getBorderBox(a);return new goog.math.Size(c.width-a.left-
 b.left-b.right-a.right,c.height-a.top-b.top-b.bottom-a.bottom)};
-goog.style.setContentBoxSize=function(a,b){var c=goog.dom.getOwnerDocument(a),d=goog.dom.getDomHelper(c).isCss1CompatMode();if(!goog.userAgent.IE||goog.userAgent.isVersionOrHigher("10")||d&&goog.userAgent.isVersionOrHigher("8"))goog.style.setBoxSizingSize_(a,b,"content-box");else if(c=a.style,d)c.pixelWidth=b.width,c.pixelHeight=b.height;else{var d=goog.style.getPaddingBox(a),f=goog.style.getBorderBox(a);c.pixelWidth=b.width+f.left+d.left+d.right+f.right;c.pixelHeight=b.height+f.top+d.top+d.bottom+
-f.bottom}};goog.style.setBoxSizingSize_=function(a,b,c){a=a.style;goog.userAgent.GECKO?a.MozBoxSizing=c:goog.userAgent.WEBKIT?a.WebkitBoxSizing=c:a.boxSizing=c;a.width=Math.max(b.width,0)+"px";a.height=Math.max(b.height,0)+"px"};goog.style.getIePixelValue_=function(a,b,c,d){if(/^\d+px?$/.test(b))return parseInt(b,10);var f=a.style[c],g=a.runtimeStyle[c];a.runtimeStyle[c]=a.currentStyle[c];a.style[c]=b;b=a.style[d];a.style[c]=f;a.runtimeStyle[c]=g;return b};
+goog.style.setContentBoxSize=function(a,b){var c=goog.dom.getOwnerDocument(a),d=goog.dom.getDomHelper(c).isCss1CompatMode();if(!goog.userAgent.IE||goog.userAgent.isVersionOrHigher("10")||d&&goog.userAgent.isVersionOrHigher("8"))goog.style.setBoxSizingSize_(a,b,"content-box");else if(c=a.style,d)c.pixelWidth=b.width,c.pixelHeight=b.height;else{var d=goog.style.getPaddingBox(a),e=goog.style.getBorderBox(a);c.pixelWidth=b.width+e.left+d.left+d.right+e.right;c.pixelHeight=b.height+e.top+d.top+d.bottom+
+e.bottom}};goog.style.setBoxSizingSize_=function(a,b,c){a=a.style;goog.userAgent.GECKO?a.MozBoxSizing=c:goog.userAgent.WEBKIT?a.WebkitBoxSizing=c:a.boxSizing=c;a.width=Math.max(b.width,0)+"px";a.height=Math.max(b.height,0)+"px"};goog.style.getIePixelValue_=function(a,b,c,d){if(/^\d+px?$/.test(b))return parseInt(b,10);var e=a.style[c],f=a.runtimeStyle[c];a.runtimeStyle[c]=a.currentStyle[c];a.style[c]=b;b=a.style[d];a.style[c]=e;a.runtimeStyle[c]=f;return b};
 goog.style.getIePixelDistance_=function(a,b){var c=goog.style.getCascadedStyle(a,b);return c?goog.style.getIePixelValue_(a,c,"left","pixelLeft"):0};
-goog.style.getBox_=function(a,b){if(goog.userAgent.IE){var c=goog.style.getIePixelDistance_(a,b+"Left"),d=goog.style.getIePixelDistance_(a,b+"Right"),f=goog.style.getIePixelDistance_(a,b+"Top"),g=goog.style.getIePixelDistance_(a,b+"Bottom");return new goog.math.Box(f,d,g,c)}c=goog.style.getComputedStyle(a,b+"Left");d=goog.style.getComputedStyle(a,b+"Right");f=goog.style.getComputedStyle(a,b+"Top");g=goog.style.getComputedStyle(a,b+"Bottom");return new goog.math.Box(parseFloat(f),parseFloat(d),parseFloat(g),
+goog.style.getBox_=function(a,b){if(goog.userAgent.IE){var c=goog.style.getIePixelDistance_(a,b+"Left"),d=goog.style.getIePixelDistance_(a,b+"Right"),e=goog.style.getIePixelDistance_(a,b+"Top"),f=goog.style.getIePixelDistance_(a,b+"Bottom");return new goog.math.Box(e,d,f,c)}c=goog.style.getComputedStyle(a,b+"Left");d=goog.style.getComputedStyle(a,b+"Right");e=goog.style.getComputedStyle(a,b+"Top");f=goog.style.getComputedStyle(a,b+"Bottom");return new goog.math.Box(parseFloat(e),parseFloat(d),parseFloat(f),
 parseFloat(c))};goog.style.getPaddingBox=function(a){return goog.style.getBox_(a,"padding")};goog.style.getMarginBox=function(a){return goog.style.getBox_(a,"margin")};goog.style.ieBorderWidthKeywords_={thin:2,medium:4,thick:6};
 goog.style.getIePixelBorder_=function(a,b){if("none"==goog.style.getCascadedStyle(a,b+"Style"))return 0;var c=goog.style.getCascadedStyle(a,b+"Width");return c in goog.style.ieBorderWidthKeywords_?goog.style.ieBorderWidthKeywords_[c]:goog.style.getIePixelValue_(a,c,"left","pixelLeft")};
 goog.style.getBorderBox=function(a){if(goog.userAgent.IE&&!goog.userAgent.isDocumentModeOrHigher(9)){var b=goog.style.getIePixelBorder_(a,"borderLeft"),c=goog.style.getIePixelBorder_(a,"borderRight"),d=goog.style.getIePixelBorder_(a,"borderTop");a=goog.style.getIePixelBorder_(a,"borderBottom");return new goog.math.Box(d,c,a,b)}b=goog.style.getComputedStyle(a,"borderLeftWidth");c=goog.style.getComputedStyle(a,"borderRightWidth");d=goog.style.getComputedStyle(a,"borderTopWidth");a=goog.style.getComputedStyle(a,
@@ -352,40 +352,40 @@ MSGOTPOINTERCAPTURE:"MSGotPointerCapture",MSINERTIASTART:"MSInertiaStart",MSLOST
 EXIT:"exit",LOADABORT:"loadabort",LOADCOMMIT:"loadcommit",LOADREDIRECT:"loadredirect",LOADSTART:"loadstart",LOADSTOP:"loadstop",RESPONSIVE:"responsive",SIZECHANGED:"sizechanged",UNRESPONSIVE:"unresponsive",VISIBILITYCHANGE:"visibilitychange",STORAGE:"storage",DOMSUBTREEMODIFIED:"DOMSubtreeModified",DOMNODEINSERTED:"DOMNodeInserted",DOMNODEREMOVED:"DOMNodeRemoved",DOMNODEREMOVEDFROMDOCUMENT:"DOMNodeRemovedFromDocument",DOMNODEINSERTEDINTODOCUMENT:"DOMNodeInsertedIntoDocument",DOMATTRMODIFIED:"DOMAttrModified",
 DOMCHARACTERDATAMODIFIED:"DOMCharacterDataModified",BEFOREPRINT:"beforeprint",AFTERPRINT:"afterprint"};goog.events.BrowserEvent=function(a,b){goog.events.Event.call(this,a?a.type:"");this.relatedTarget=this.currentTarget=this.target=null;this.charCode=this.keyCode=this.button=this.screenY=this.screenX=this.clientY=this.clientX=this.offsetY=this.offsetX=0;this.metaKey=this.shiftKey=this.altKey=this.ctrlKey=!1;this.state=null;this.platformModifierKey=!1;this.event_=null;a&&this.init(a,b)};goog.inherits(goog.events.BrowserEvent,goog.events.Event);
 goog.events.BrowserEvent.MouseButton={LEFT:0,MIDDLE:1,RIGHT:2};goog.events.BrowserEvent.IEButtonMap=[1,4,2];
-goog.events.BrowserEvent.prototype.init=function(a,b){var c=this.type=a.type,d=a.changedTouches?a.changedTouches[0]:null;this.target=a.target||a.srcElement;this.currentTarget=b;var f=a.relatedTarget;f?goog.userAgent.GECKO&&(goog.reflect.canAccessProperty(f,"nodeName")||(f=null)):c==goog.events.EventType.MOUSEOVER?f=a.fromElement:c==goog.events.EventType.MOUSEOUT&&(f=a.toElement);this.relatedTarget=f;goog.isNull(d)?(this.offsetX=goog.userAgent.WEBKIT||void 0!==a.offsetX?a.offsetX:a.layerX,this.offsetY=
+goog.events.BrowserEvent.prototype.init=function(a,b){var c=this.type=a.type,d=a.changedTouches?a.changedTouches[0]:null;this.target=a.target||a.srcElement;this.currentTarget=b;var e=a.relatedTarget;e?goog.userAgent.GECKO&&(goog.reflect.canAccessProperty(e,"nodeName")||(e=null)):c==goog.events.EventType.MOUSEOVER?e=a.fromElement:c==goog.events.EventType.MOUSEOUT&&(e=a.toElement);this.relatedTarget=e;goog.isNull(d)?(this.offsetX=goog.userAgent.WEBKIT||void 0!==a.offsetX?a.offsetX:a.layerX,this.offsetY=
 goog.userAgent.WEBKIT||void 0!==a.offsetY?a.offsetY:a.layerY,this.clientX=void 0!==a.clientX?a.clientX:a.pageX,this.clientY=void 0!==a.clientY?a.clientY:a.pageY,this.screenX=a.screenX||0,this.screenY=a.screenY||0):(this.clientX=void 0!==d.clientX?d.clientX:d.pageX,this.clientY=void 0!==d.clientY?d.clientY:d.pageY,this.screenX=d.screenX||0,this.screenY=d.screenY||0);this.button=a.button;this.keyCode=a.keyCode||0;this.charCode=a.charCode||("keypress"==c?a.keyCode:0);this.ctrlKey=a.ctrlKey;this.altKey=
 a.altKey;this.shiftKey=a.shiftKey;this.metaKey=a.metaKey;this.platformModifierKey=goog.userAgent.MAC?a.metaKey:a.ctrlKey;this.state=a.state;this.event_=a;a.defaultPrevented&&this.preventDefault()};goog.events.BrowserEvent.prototype.isButton=function(a){return goog.events.BrowserFeature.HAS_W3C_BUTTON?this.event_.button==a:"click"==this.type?a==goog.events.BrowserEvent.MouseButton.LEFT:!!(this.event_.button&goog.events.BrowserEvent.IEButtonMap[a])};
 goog.events.BrowserEvent.prototype.isMouseActionButton=function(){return this.isButton(goog.events.BrowserEvent.MouseButton.LEFT)&&!(goog.userAgent.WEBKIT&&goog.userAgent.MAC&&this.ctrlKey)};goog.events.BrowserEvent.prototype.stopPropagation=function(){goog.events.BrowserEvent.superClass_.stopPropagation.call(this);this.event_.stopPropagation?this.event_.stopPropagation():this.event_.cancelBubble=!0};
-goog.events.BrowserEvent.prototype.preventDefault=function(){goog.events.BrowserEvent.superClass_.preventDefault.call(this);var a=this.event_;if(a.preventDefault)a.preventDefault();else if(a.returnValue=!1,goog.events.BrowserFeature.SET_KEY_CODE_TO_PREVENT_DEFAULT)try{if(a.ctrlKey||112<=a.keyCode&&123>=a.keyCode)a.keyCode=-1}catch(b){}};goog.events.BrowserEvent.prototype.getBrowserEvent=function(){return this.event_};goog.events.Listenable=function(){};goog.events.Listenable.IMPLEMENTED_BY_PROP="closure_listenable_"+(1E6*Math.random()|0);goog.events.Listenable.addImplementation=function(a){a.prototype[goog.events.Listenable.IMPLEMENTED_BY_PROP]=!0};goog.events.Listenable.isImplementedBy=function(a){return!(!a||!a[goog.events.Listenable.IMPLEMENTED_BY_PROP])};goog.events.ListenableKey=function(){};goog.events.ListenableKey.counter_=0;goog.events.ListenableKey.reserveKey=function(){return++goog.events.ListenableKey.counter_};goog.events.Listener=function(a,b,c,d,f,g){goog.events.Listener.ENABLE_MONITORING&&(this.creationStack=Error().stack);this.listener=a;this.proxy=b;this.src=c;this.type=d;this.capture=!!f;this.handler=g;this.key=goog.events.ListenableKey.reserveKey();this.removed=this.callOnce=!1};goog.events.Listener.ENABLE_MONITORING=!1;goog.events.Listener.prototype.markAsRemoved=function(){this.removed=!0;this.handler=this.src=this.proxy=this.listener=null};goog.events.ListenerMap=function(a){this.src=a;this.listeners={};this.typeCount_=0};goog.events.ListenerMap.prototype.getTypeCount=function(){return this.typeCount_};goog.events.ListenerMap.prototype.getListenerCount=function(){var a=0,b;for(b in this.listeners)a+=this.listeners[b].length;return a};
-goog.events.ListenerMap.prototype.add=function(a,b,c,d,f){var g=a.toString();a=this.listeners[g];a||(a=this.listeners[g]=[],this.typeCount_++);var h=goog.events.ListenerMap.findListenerIndex_(a,b,d,f);-1<h?(b=a[h],c||(b.callOnce=!1)):(b=new goog.events.Listener(b,null,this.src,g,!!d,f),b.callOnce=c,a.push(b));return b};
-goog.events.ListenerMap.prototype.remove=function(a,b,c,d){a=a.toString();if(!(a in this.listeners))return!1;var f=this.listeners[a];b=goog.events.ListenerMap.findListenerIndex_(f,b,c,d);return-1<b?(f[b].markAsRemoved(),goog.array.removeAt(f,b),0==f.length&&(delete this.listeners[a],this.typeCount_--),!0):!1};
-goog.events.ListenerMap.prototype.removeByKey=function(a){var b=a.type;if(!(b in this.listeners))return!1;var c=goog.array.remove(this.listeners[b],a);c&&(a.markAsRemoved(),0==this.listeners[b].length&&(delete this.listeners[b],this.typeCount_--));return c};goog.events.ListenerMap.prototype.removeAll=function(a){a=a&&a.toString();var b=0,c;for(c in this.listeners)if(!a||c==a){for(var d=this.listeners[c],f=0;f<d.length;f++)++b,d[f].markAsRemoved();delete this.listeners[c];this.typeCount_--}return b};
-goog.events.ListenerMap.prototype.getListeners=function(a,b){var c=this.listeners[a.toString()],d=[];if(c)for(var f=0;f<c.length;++f){var g=c[f];g.capture==b&&d.push(g)}return d};goog.events.ListenerMap.prototype.getListener=function(a,b,c,d){a=this.listeners[a.toString()];var f=-1;a&&(f=goog.events.ListenerMap.findListenerIndex_(a,b,c,d));return-1<f?a[f]:null};
-goog.events.ListenerMap.prototype.hasListener=function(a,b){var c=goog.isDef(a),d=c?a.toString():"",f=goog.isDef(b);return goog.object.some(this.listeners,function(a,h){for(var k=0;k<a.length;++k)if(!(c&&a[k].type!=d||f&&a[k].capture!=b))return!0;return!1})};goog.events.ListenerMap.findListenerIndex_=function(a,b,c,d){for(var f=0;f<a.length;++f){var g=a[f];if(!g.removed&&g.listener==b&&g.capture==!!c&&g.handler==d)return f}return-1};goog.events.LISTENER_MAP_PROP_="closure_lm_"+(1E6*Math.random()|0);goog.events.onString_="on";goog.events.onStringMap_={};goog.events.CaptureSimulationMode={OFF_AND_FAIL:0,OFF_AND_SILENT:1,ON:2};goog.events.CAPTURE_SIMULATION_MODE=2;goog.events.listenerCountEstimate_=0;
-goog.events.listen=function(a,b,c,d,f){if(goog.isArray(b)){for(var g=0;g<b.length;g++)goog.events.listen(a,b[g],c,d,f);return null}c=goog.events.wrapListener(c);return goog.events.Listenable.isImplementedBy(a)?a.listen(b,c,d,f):goog.events.listen_(a,b,c,!1,d,f)};
-goog.events.listen_=function(a,b,c,d,f,g){if(!b)throw Error("Invalid event type");var h=!!f;if(h&&!goog.events.BrowserFeature.HAS_W3C_EVENT_SUPPORT){if(goog.events.CAPTURE_SIMULATION_MODE==goog.events.CaptureSimulationMode.OFF_AND_FAIL)return goog.asserts.fail("Can not register capture listener in IE8-."),null;if(goog.events.CAPTURE_SIMULATION_MODE==goog.events.CaptureSimulationMode.OFF_AND_SILENT)return null}var k=goog.events.getListenerMap_(a);k||(a[goog.events.LISTENER_MAP_PROP_]=k=new goog.events.ListenerMap(a));
-c=k.add(b,c,d,f,g);if(c.proxy)return c;d=goog.events.getProxy();c.proxy=d;d.src=a;d.listener=c;if(a.addEventListener)a.addEventListener(b.toString(),d,h);else if(a.attachEvent)a.attachEvent(goog.events.getOnString_(b.toString()),d);else throw Error("addEventListener and attachEvent are unavailable.");goog.events.listenerCountEstimate_++;return c};
+goog.events.BrowserEvent.prototype.preventDefault=function(){goog.events.BrowserEvent.superClass_.preventDefault.call(this);var a=this.event_;if(a.preventDefault)a.preventDefault();else if(a.returnValue=!1,goog.events.BrowserFeature.SET_KEY_CODE_TO_PREVENT_DEFAULT)try{if(a.ctrlKey||112<=a.keyCode&&123>=a.keyCode)a.keyCode=-1}catch(b){}};goog.events.BrowserEvent.prototype.getBrowserEvent=function(){return this.event_};goog.events.Listenable=function(){};goog.events.Listenable.IMPLEMENTED_BY_PROP="closure_listenable_"+(1E6*Math.random()|0);goog.events.Listenable.addImplementation=function(a){a.prototype[goog.events.Listenable.IMPLEMENTED_BY_PROP]=!0};goog.events.Listenable.isImplementedBy=function(a){return!(!a||!a[goog.events.Listenable.IMPLEMENTED_BY_PROP])};goog.events.ListenableKey=function(){};goog.events.ListenableKey.counter_=0;goog.events.ListenableKey.reserveKey=function(){return++goog.events.ListenableKey.counter_};goog.events.Listener=function(a,b,c,d,e,f){goog.events.Listener.ENABLE_MONITORING&&(this.creationStack=Error().stack);this.listener=a;this.proxy=b;this.src=c;this.type=d;this.capture=!!e;this.handler=f;this.key=goog.events.ListenableKey.reserveKey();this.removed=this.callOnce=!1};goog.events.Listener.ENABLE_MONITORING=!1;goog.events.Listener.prototype.markAsRemoved=function(){this.removed=!0;this.handler=this.src=this.proxy=this.listener=null};goog.events.ListenerMap=function(a){this.src=a;this.listeners={};this.typeCount_=0};goog.events.ListenerMap.prototype.getTypeCount=function(){return this.typeCount_};goog.events.ListenerMap.prototype.getListenerCount=function(){var a=0,b;for(b in this.listeners)a+=this.listeners[b].length;return a};
+goog.events.ListenerMap.prototype.add=function(a,b,c,d,e){var f=a.toString();a=this.listeners[f];a||(a=this.listeners[f]=[],this.typeCount_++);var g=goog.events.ListenerMap.findListenerIndex_(a,b,d,e);-1<g?(b=a[g],c||(b.callOnce=!1)):(b=new goog.events.Listener(b,null,this.src,f,!!d,e),b.callOnce=c,a.push(b));return b};
+goog.events.ListenerMap.prototype.remove=function(a,b,c,d){a=a.toString();if(!(a in this.listeners))return!1;var e=this.listeners[a];b=goog.events.ListenerMap.findListenerIndex_(e,b,c,d);return-1<b?(e[b].markAsRemoved(),goog.array.removeAt(e,b),0==e.length&&(delete this.listeners[a],this.typeCount_--),!0):!1};
+goog.events.ListenerMap.prototype.removeByKey=function(a){var b=a.type;if(!(b in this.listeners))return!1;var c=goog.array.remove(this.listeners[b],a);c&&(a.markAsRemoved(),0==this.listeners[b].length&&(delete this.listeners[b],this.typeCount_--));return c};goog.events.ListenerMap.prototype.removeAll=function(a){a=a&&a.toString();var b=0,c;for(c in this.listeners)if(!a||c==a){for(var d=this.listeners[c],e=0;e<d.length;e++)++b,d[e].markAsRemoved();delete this.listeners[c];this.typeCount_--}return b};
+goog.events.ListenerMap.prototype.getListeners=function(a,b){var c=this.listeners[a.toString()],d=[];if(c)for(var e=0;e<c.length;++e){var f=c[e];f.capture==b&&d.push(f)}return d};goog.events.ListenerMap.prototype.getListener=function(a,b,c,d){a=this.listeners[a.toString()];var e=-1;a&&(e=goog.events.ListenerMap.findListenerIndex_(a,b,c,d));return-1<e?a[e]:null};
+goog.events.ListenerMap.prototype.hasListener=function(a,b){var c=goog.isDef(a),d=c?a.toString():"",e=goog.isDef(b);return goog.object.some(this.listeners,function(a,g){for(var h=0;h<a.length;++h)if(!(c&&a[h].type!=d||e&&a[h].capture!=b))return!0;return!1})};goog.events.ListenerMap.findListenerIndex_=function(a,b,c,d){for(var e=0;e<a.length;++e){var f=a[e];if(!f.removed&&f.listener==b&&f.capture==!!c&&f.handler==d)return e}return-1};goog.events.LISTENER_MAP_PROP_="closure_lm_"+(1E6*Math.random()|0);goog.events.onString_="on";goog.events.onStringMap_={};goog.events.CaptureSimulationMode={OFF_AND_FAIL:0,OFF_AND_SILENT:1,ON:2};goog.events.CAPTURE_SIMULATION_MODE=2;goog.events.listenerCountEstimate_=0;
+goog.events.listen=function(a,b,c,d,e){if(goog.isArray(b)){for(var f=0;f<b.length;f++)goog.events.listen(a,b[f],c,d,e);return null}c=goog.events.wrapListener(c);return goog.events.Listenable.isImplementedBy(a)?a.listen(b,c,d,e):goog.events.listen_(a,b,c,!1,d,e)};
+goog.events.listen_=function(a,b,c,d,e,f){if(!b)throw Error("Invalid event type");var g=!!e;if(g&&!goog.events.BrowserFeature.HAS_W3C_EVENT_SUPPORT){if(goog.events.CAPTURE_SIMULATION_MODE==goog.events.CaptureSimulationMode.OFF_AND_FAIL)return goog.asserts.fail("Can not register capture listener in IE8-."),null;if(goog.events.CAPTURE_SIMULATION_MODE==goog.events.CaptureSimulationMode.OFF_AND_SILENT)return null}var h=goog.events.getListenerMap_(a);h||(a[goog.events.LISTENER_MAP_PROP_]=h=new goog.events.ListenerMap(a));
+c=h.add(b,c,d,e,f);if(c.proxy)return c;d=goog.events.getProxy();c.proxy=d;d.src=a;d.listener=c;if(a.addEventListener)a.addEventListener(b.toString(),d,g);else if(a.attachEvent)a.attachEvent(goog.events.getOnString_(b.toString()),d);else throw Error("addEventListener and attachEvent are unavailable.");goog.events.listenerCountEstimate_++;return c};
 goog.events.getProxy=function(){var a=goog.events.handleBrowserEvent_,b=goog.events.BrowserFeature.HAS_W3C_EVENT_SUPPORT?function(c){return a.call(b.src,b.listener,c)}:function(c){c=a.call(b.src,b.listener,c);if(!c)return c};return b};
-goog.events.listenOnce=function(a,b,c,d,f){if(goog.isArray(b)){for(var g=0;g<b.length;g++)goog.events.listenOnce(a,b[g],c,d,f);return null}c=goog.events.wrapListener(c);return goog.events.Listenable.isImplementedBy(a)?a.listenOnce(b,c,d,f):goog.events.listen_(a,b,c,!0,d,f)};goog.events.listenWithWrapper=function(a,b,c,d,f){b.listen(a,c,d,f)};
-goog.events.unlisten=function(a,b,c,d,f){if(goog.isArray(b)){for(var g=0;g<b.length;g++)goog.events.unlisten(a,b[g],c,d,f);return null}c=goog.events.wrapListener(c);if(goog.events.Listenable.isImplementedBy(a))return a.unlisten(b,c,d,f);if(!a)return!1;d=!!d;if(a=goog.events.getListenerMap_(a))if(b=a.getListener(b,c,d,f))return goog.events.unlistenByKey(b);return!1};
+goog.events.listenOnce=function(a,b,c,d,e){if(goog.isArray(b)){for(var f=0;f<b.length;f++)goog.events.listenOnce(a,b[f],c,d,e);return null}c=goog.events.wrapListener(c);return goog.events.Listenable.isImplementedBy(a)?a.listenOnce(b,c,d,e):goog.events.listen_(a,b,c,!0,d,e)};goog.events.listenWithWrapper=function(a,b,c,d,e){b.listen(a,c,d,e)};
+goog.events.unlisten=function(a,b,c,d,e){if(goog.isArray(b)){for(var f=0;f<b.length;f++)goog.events.unlisten(a,b[f],c,d,e);return null}c=goog.events.wrapListener(c);if(goog.events.Listenable.isImplementedBy(a))return a.unlisten(b,c,d,e);if(!a)return!1;d=!!d;if(a=goog.events.getListenerMap_(a))if(b=a.getListener(b,c,d,e))return goog.events.unlistenByKey(b);return!1};
 goog.events.unlistenByKey=function(a){if(goog.isNumber(a)||!a||a.removed)return!1;var b=a.src;if(goog.events.Listenable.isImplementedBy(b))return b.unlistenByKey(a);var c=a.type,d=a.proxy;b.removeEventListener?b.removeEventListener(c,d,a.capture):b.detachEvent&&b.detachEvent(goog.events.getOnString_(c),d);goog.events.listenerCountEstimate_--;(c=goog.events.getListenerMap_(b))?(c.removeByKey(a),0==c.getTypeCount()&&(c.src=null,b[goog.events.LISTENER_MAP_PROP_]=null)):a.markAsRemoved();return!0};
-goog.events.unlistenWithWrapper=function(a,b,c,d,f){b.unlisten(a,c,d,f)};goog.events.removeAll=function(a,b){if(!a)return 0;if(goog.events.Listenable.isImplementedBy(a))return a.removeAllListeners(b);var c=goog.events.getListenerMap_(a);if(!c)return 0;var d=0,f=b&&b.toString(),g;for(g in c.listeners)if(!f||g==f)for(var h=c.listeners[g].concat(),k=0;k<h.length;++k)goog.events.unlistenByKey(h[k])&&++d;return d};
-goog.events.getListeners=function(a,b,c){return goog.events.Listenable.isImplementedBy(a)?a.getListeners(b,c):a?(a=goog.events.getListenerMap_(a))?a.getListeners(b,c):[]:[]};goog.events.getListener=function(a,b,c,d,f){c=goog.events.wrapListener(c);d=!!d;return goog.events.Listenable.isImplementedBy(a)?a.getListener(b,c,d,f):a?(a=goog.events.getListenerMap_(a))?a.getListener(b,c,d,f):null:null};
+goog.events.unlistenWithWrapper=function(a,b,c,d,e){b.unlisten(a,c,d,e)};goog.events.removeAll=function(a,b){if(!a)return 0;if(goog.events.Listenable.isImplementedBy(a))return a.removeAllListeners(b);var c=goog.events.getListenerMap_(a);if(!c)return 0;var d=0,e=b&&b.toString(),f;for(f in c.listeners)if(!e||f==e)for(var g=c.listeners[f].concat(),h=0;h<g.length;++h)goog.events.unlistenByKey(g[h])&&++d;return d};
+goog.events.getListeners=function(a,b,c){return goog.events.Listenable.isImplementedBy(a)?a.getListeners(b,c):a?(a=goog.events.getListenerMap_(a))?a.getListeners(b,c):[]:[]};goog.events.getListener=function(a,b,c,d,e){c=goog.events.wrapListener(c);d=!!d;return goog.events.Listenable.isImplementedBy(a)?a.getListener(b,c,d,e):a?(a=goog.events.getListenerMap_(a))?a.getListener(b,c,d,e):null:null};
 goog.events.hasListener=function(a,b,c){if(goog.events.Listenable.isImplementedBy(a))return a.hasListener(b,c);a=goog.events.getListenerMap_(a);return!!a&&a.hasListener(b,c)};goog.events.expose=function(a){var b=[],c;for(c in a)a[c]&&a[c].id?b.push(c+" = "+a[c]+" ("+a[c].id+")"):b.push(c+" = "+a[c]);return b.join("\n")};goog.events.getOnString_=function(a){return a in goog.events.onStringMap_?goog.events.onStringMap_[a]:goog.events.onStringMap_[a]=goog.events.onString_+a};
-goog.events.fireListeners=function(a,b,c,d){return goog.events.Listenable.isImplementedBy(a)?a.fireListeners(b,c,d):goog.events.fireListeners_(a,b,c,d)};goog.events.fireListeners_=function(a,b,c,d){var f=!0;if(a=goog.events.getListenerMap_(a))if(b=a.listeners[b.toString()])for(b=b.concat(),a=0;a<b.length;a++){var g=b[a];g&&g.capture==c&&!g.removed&&(g=goog.events.fireListener(g,d),f=f&&!1!==g)}return f};
+goog.events.fireListeners=function(a,b,c,d){return goog.events.Listenable.isImplementedBy(a)?a.fireListeners(b,c,d):goog.events.fireListeners_(a,b,c,d)};goog.events.fireListeners_=function(a,b,c,d){var e=!0;if(a=goog.events.getListenerMap_(a))if(b=a.listeners[b.toString()])for(b=b.concat(),a=0;a<b.length;a++){var f=b[a];f&&f.capture==c&&!f.removed&&(f=goog.events.fireListener(f,d),e=e&&!1!==f)}return e};
 goog.events.fireListener=function(a,b){var c=a.listener,d=a.handler||a.src;a.callOnce&&goog.events.unlistenByKey(a);return c.call(d,b)};goog.events.getTotalListenerCount=function(){return goog.events.listenerCountEstimate_};goog.events.dispatchEvent=function(a,b){goog.asserts.assert(goog.events.Listenable.isImplementedBy(a),"Can not use goog.events.dispatchEvent with non-goog.events.Listenable instance.");return a.dispatchEvent(b)};
 goog.events.protectBrowserEventEntryPoint=function(a){goog.events.handleBrowserEvent_=a.protectEntryPoint(goog.events.handleBrowserEvent_)};
-goog.events.handleBrowserEvent_=function(a,b){if(a.removed)return!0;if(!goog.events.BrowserFeature.HAS_W3C_EVENT_SUPPORT){var c=b||goog.getObjectByName("window.event"),d=new goog.events.BrowserEvent(c,this),f=!0;if(goog.events.CAPTURE_SIMULATION_MODE==goog.events.CaptureSimulationMode.ON){if(!goog.events.isMarkedIeEvent_(c)){goog.events.markIeEvent_(c);for(var c=[],g=d.currentTarget;g;g=g.parentNode)c.push(g);for(var g=a.type,h=c.length-1;!d.propagationStopped_&&0<=h;h--){d.currentTarget=c[h];var k=
-goog.events.fireListeners_(c[h],g,!0,d),f=f&&k}for(h=0;!d.propagationStopped_&&h<c.length;h++)d.currentTarget=c[h],k=goog.events.fireListeners_(c[h],g,!1,d),f=f&&k}}else f=goog.events.fireListener(a,d);return f}return goog.events.fireListener(a,new goog.events.BrowserEvent(b,this))};goog.events.markIeEvent_=function(a){var b=!1;if(0==a.keyCode)try{a.keyCode=-1;return}catch(c){b=!0}if(b||void 0==a.returnValue)a.returnValue=!0};goog.events.isMarkedIeEvent_=function(a){return 0>a.keyCode||void 0!=a.returnValue};
+goog.events.handleBrowserEvent_=function(a,b){if(a.removed)return!0;if(!goog.events.BrowserFeature.HAS_W3C_EVENT_SUPPORT){var c=b||goog.getObjectByName("window.event"),d=new goog.events.BrowserEvent(c,this),e=!0;if(goog.events.CAPTURE_SIMULATION_MODE==goog.events.CaptureSimulationMode.ON){if(!goog.events.isMarkedIeEvent_(c)){goog.events.markIeEvent_(c);for(var c=[],f=d.currentTarget;f;f=f.parentNode)c.push(f);for(var f=a.type,g=c.length-1;!d.propagationStopped_&&0<=g;g--){d.currentTarget=c[g];var h=
+goog.events.fireListeners_(c[g],f,!0,d),e=e&&h}for(g=0;!d.propagationStopped_&&g<c.length;g++)d.currentTarget=c[g],h=goog.events.fireListeners_(c[g],f,!1,d),e=e&&h}}else e=goog.events.fireListener(a,d);return e}return goog.events.fireListener(a,new goog.events.BrowserEvent(b,this))};goog.events.markIeEvent_=function(a){var b=!1;if(0==a.keyCode)try{a.keyCode=-1;return}catch(c){b=!0}if(b||void 0==a.returnValue)a.returnValue=!0};goog.events.isMarkedIeEvent_=function(a){return 0>a.keyCode||void 0!=a.returnValue};
 goog.events.uniqueIdCounter_=0;goog.events.getUniqueId=function(a){return a+"_"+goog.events.uniqueIdCounter_++};goog.events.getListenerMap_=function(a){a=a[goog.events.LISTENER_MAP_PROP_];return a instanceof goog.events.ListenerMap?a:null};goog.events.LISTENER_WRAPPER_PROP_="__closure_events_fn_"+(1E9*Math.random()>>>0);
 goog.events.wrapListener=function(a){goog.asserts.assert(a,"Listener can not be null.");if(goog.isFunction(a))return a;goog.asserts.assert(a.handleEvent,"An object listener must have handleEvent method.");a[goog.events.LISTENER_WRAPPER_PROP_]||(a[goog.events.LISTENER_WRAPPER_PROP_]=function(b){return a.handleEvent(b)});return a[goog.events.LISTENER_WRAPPER_PROP_]};goog.debug.entryPointRegistry.register(function(a){goog.events.handleBrowserEvent_=a(goog.events.handleBrowserEvent_)});goog.Thenable=function(){};goog.Thenable.prototype.then=function(a,b,c){};goog.Thenable.IMPLEMENTED_BY_PROP="$goog_Thenable";goog.Thenable.addImplementation=function(a){goog.exportProperty(a.prototype,"then",a.prototype.then);COMPILED?a.prototype[goog.Thenable.IMPLEMENTED_BY_PROP]=!0:a.prototype.$goog_Thenable=!0};goog.Thenable.isImplementedBy=function(a){if(!a)return!1;try{return COMPILED?!!a[goog.Thenable.IMPLEMENTED_BY_PROP]:!!a.$goog_Thenable}catch(b){return!1}};goog.async={};goog.async.FreeList=function(a,b,c){this.limit_=c;this.create_=a;this.reset_=b;this.occupants_=0;this.head_=null};goog.async.FreeList.prototype.get=function(){var a;0<this.occupants_?(this.occupants_--,a=this.head_,this.head_=a.next,a.next=null):a=this.create_();return a};goog.async.FreeList.prototype.put=function(a){this.reset_(a);this.occupants_<this.limit_&&(this.occupants_++,a.next=this.head_,this.head_=a)};goog.async.FreeList.prototype.occupants=function(){return this.occupants_};goog.async.WorkQueue=function(){this.workTail_=this.workHead_=null};goog.async.WorkQueue.DEFAULT_MAX_UNUSED=100;goog.async.WorkQueue.freelist_=new goog.async.FreeList(function(){return new goog.async.WorkItem},function(a){a.reset()},goog.async.WorkQueue.DEFAULT_MAX_UNUSED);goog.async.WorkQueue.prototype.add=function(a,b){var c=this.getUnusedItem_();c.set(a,b);this.workTail_?this.workTail_.next=c:(goog.asserts.assert(!this.workHead_),this.workHead_=c);this.workTail_=c};
 goog.async.WorkQueue.prototype.remove=function(){var a=null;this.workHead_&&(a=this.workHead_,this.workHead_=this.workHead_.next,this.workHead_||(this.workTail_=null),a.next=null);return a};goog.async.WorkQueue.prototype.returnUnused=function(a){goog.async.WorkQueue.freelist_.put(a)};goog.async.WorkQueue.prototype.getUnusedItem_=function(){return goog.async.WorkQueue.freelist_.get()};goog.async.WorkItem=function(){this.next=this.scope=this.fn=null};
 goog.async.WorkItem.prototype.set=function(a,b){this.fn=a;this.scope=b;this.next=null};goog.async.WorkItem.prototype.reset=function(){this.next=this.scope=this.fn=null};goog.functions={};goog.functions.constant=function(a){return function(){return a}};goog.functions.FALSE=goog.functions.constant(!1);goog.functions.TRUE=goog.functions.constant(!0);goog.functions.NULL=goog.functions.constant(null);goog.functions.identity=function(a,b){return a};goog.functions.error=function(a){return function(){throw Error(a);}};goog.functions.fail=function(a){return function(){throw a;}};
 goog.functions.lock=function(a,b){b=b||0;return function(){return a.apply(this,Array.prototype.slice.call(arguments,0,b))}};goog.functions.nth=function(a){return function(){return arguments[a]}};goog.functions.partialRight=function(a,b){var c=Array.prototype.slice.call(arguments,1);return function(){var b=Array.prototype.slice.call(arguments);b.push.apply(b,c);return a.apply(this,b)}};goog.functions.withReturnValue=function(a,b){return goog.functions.sequence(a,goog.functions.constant(b))};
-goog.functions.equalTo=function(a,b){return function(c){return b?a==c:a===c}};goog.functions.compose=function(a,b){var c=arguments,d=c.length;return function(){var a;d&&(a=c[d-1].apply(this,arguments));for(var b=d-2;0<=b;b--)a=c[b].call(this,a);return a}};goog.functions.sequence=function(a){var b=arguments,c=b.length;return function(){for(var a,f=0;f<c;f++)a=b[f].apply(this,arguments);return a}};
+goog.functions.equalTo=function(a,b){return function(c){return b?a==c:a===c}};goog.functions.compose=function(a,b){var c=arguments,d=c.length;return function(){var a;d&&(a=c[d-1].apply(this,arguments));for(var b=d-2;0<=b;b--)a=c[b].call(this,a);return a}};goog.functions.sequence=function(a){var b=arguments,c=b.length;return function(){for(var a,e=0;e<c;e++)a=b[e].apply(this,arguments);return a}};
 goog.functions.and=function(a){var b=arguments,c=b.length;return function(){for(var a=0;a<c;a++)if(!b[a].apply(this,arguments))return!1;return!0}};goog.functions.or=function(a){var b=arguments,c=b.length;return function(){for(var a=0;a<c;a++)if(b[a].apply(this,arguments))return!0;return!1}};goog.functions.not=function(a){return function(){return!a.apply(this,arguments)}};
 goog.functions.create=function(a,b){var c=function(){};c.prototype=a.prototype;c=new c;a.apply(c,Array.prototype.slice.call(arguments,1));return c};goog.functions.CACHE_RETURN_VALUE=!0;goog.functions.cacheReturnValue=function(a){var b=!1,c;return function(){if(!goog.functions.CACHE_RETURN_VALUE)return a();b||(c=a(),b=!0);return c}};goog.functions.once=function(a){var b=a;return function(){if(b){var a=b;b=null;a()}}};
-goog.functions.debounce=function(a,b,c){c&&(a=goog.bind(a,c));var d=null;return function(c){goog.global.clearTimeout(d);var g=arguments;d=goog.global.setTimeout(function(){a.apply(null,g)},b)}};goog.functions.throttle=function(a,b,c){c&&(a=goog.bind(a,c));var d=null,f=!1,g=[],h=function(){d=null;f&&(f=!1,k())},k=function(){d=goog.global.setTimeout(h,b);a.apply(null,g)};return function(a){g=arguments;d?f=!0:k()}};goog.async.throwException=function(a){goog.global.setTimeout(function(){throw a;},0)};goog.async.nextTick=function(a,b,c){var d=a;b&&(d=goog.bind(a,b));d=goog.async.nextTick.wrapCallback_(d);goog.isFunction(goog.global.setImmediate)&&(c||goog.async.nextTick.useSetImmediate_())?goog.global.setImmediate(d):(goog.async.nextTick.setImmediate_||(goog.async.nextTick.setImmediate_=goog.async.nextTick.getSetImmediateEmulator_()),goog.async.nextTick.setImmediate_(d))};
+goog.functions.debounce=function(a,b,c){c&&(a=goog.bind(a,c));var d=null;return function(c){goog.global.clearTimeout(d);var f=arguments;d=goog.global.setTimeout(function(){a.apply(null,f)},b)}};goog.functions.throttle=function(a,b,c){c&&(a=goog.bind(a,c));var d=null,e=!1,f=[],g=function(){d=null;e&&(e=!1,h())},h=function(){d=goog.global.setTimeout(g,b);a.apply(null,f)};return function(a){f=arguments;d?e=!0:h()}};goog.async.throwException=function(a){goog.global.setTimeout(function(){throw a;},0)};goog.async.nextTick=function(a,b,c){var d=a;b&&(d=goog.bind(a,b));d=goog.async.nextTick.wrapCallback_(d);goog.isFunction(goog.global.setImmediate)&&(c||goog.async.nextTick.useSetImmediate_())?goog.global.setImmediate(d):(goog.async.nextTick.setImmediate_||(goog.async.nextTick.setImmediate_=goog.async.nextTick.getSetImmediateEmulator_()),goog.async.nextTick.setImmediate_(d))};
 goog.async.nextTick.useSetImmediate_=function(){return goog.global.Window&&goog.global.Window.prototype&&!goog.labs.userAgent.browser.isEdge()&&goog.global.Window.prototype.setImmediate==goog.global.setImmediate?!1:!0};
 goog.async.nextTick.getSetImmediateEmulator_=function(){var a=goog.global.MessageChannel;"undefined"===typeof a&&"undefined"!==typeof window&&window.postMessage&&window.addEventListener&&!goog.labs.userAgent.engine.isPresto()&&(a=function(){var a=document.createElement(goog.dom.TagName.IFRAME);a.style.display="none";a.src="";document.documentElement.appendChild(a);var b=a.contentWindow,a=b.document;a.open();a.write("");a.close();var c="callImmediate"+Math.random(),d="file:"==b.location.protocol?"*":
 b.location.protocol+"//"+b.location.host,a=goog.bind(function(a){if(("*"==d||a.origin==d)&&a.data==c)this.port1.onmessage()},this);b.addEventListener("message",a,!1);this.port1={};this.port2={postMessage:function(){b.postMessage(c,d)}}});if("undefined"!==typeof a&&!goog.labs.userAgent.browser.isIE()){var b=new a,c={},d=c;b.port1.onmessage=function(){if(goog.isDef(c.next)){c=c.next;var a=c.cb;c.cb=null;a()}};return function(a){d.next={cb:a};d=d.next;b.port2.postMessage(0)}}return"undefined"!==typeof document&&
@@ -395,20 +395,20 @@ goog.async.run.processWorkQueue=function(){for(var a=null;a=goog.async.run.workQ
 a)},function(a){if(goog.DEBUG&&!(a instanceof goog.Promise.CancellationError))try{if(a instanceof Error)throw a;throw Error("Promise rejected.");}catch(b){}c.resolve_(goog.Promise.State_.REJECTED,a)})}catch(d){this.resolve_(goog.Promise.State_.REJECTED,d)}};goog.Promise.LONG_STACK_TRACES=!1;goog.Promise.UNHANDLED_REJECTION_DELAY=0;goog.Promise.State_={PENDING:0,BLOCKED:1,FULFILLED:2,REJECTED:3};
 goog.Promise.CallbackEntry_=function(){this.next=this.context=this.onRejected=this.onFulfilled=this.child=null;this.always=!1};goog.Promise.CallbackEntry_.prototype.reset=function(){this.context=this.onRejected=this.onFulfilled=this.child=null;this.always=!1};goog.Promise.DEFAULT_MAX_UNUSED=100;goog.Promise.freelist_=new goog.async.FreeList(function(){return new goog.Promise.CallbackEntry_},function(a){a.reset()},goog.Promise.DEFAULT_MAX_UNUSED);
 goog.Promise.getCallbackEntry_=function(a,b,c){var d=goog.Promise.freelist_.get();d.onFulfilled=a;d.onRejected=b;d.context=c;return d};goog.Promise.returnEntry_=function(a){goog.Promise.freelist_.put(a)};goog.Promise.resolve=function(a){if(a instanceof goog.Promise)return a;var b=new goog.Promise(goog.nullFunction);b.resolve_(goog.Promise.State_.FULFILLED,a);return b};goog.Promise.reject=function(a){return new goog.Promise(function(b,c){c(a)})};
-goog.Promise.resolveThen_=function(a,b,c){goog.Promise.maybeThen_(a,b,c,null)||goog.async.run(goog.partial(b,a))};goog.Promise.race=function(a){return new goog.Promise(function(b,c){a.length||b(void 0);for(var d=0,f;d<a.length;d++)f=a[d],goog.Promise.resolveThen_(f,b,c)})};
-goog.Promise.all=function(a){return new goog.Promise(function(b,c){var d=a.length,f=[];if(d)for(var g=function(a,c){d--;f[a]=c;0==d&&b(f)},h=function(a){c(a)},k=0,l;k<a.length;k++)l=a[k],goog.Promise.resolveThen_(l,goog.partial(g,k),h);else b(f)})};
-goog.Promise.allSettled=function(a){return new goog.Promise(function(b,c){var d=a.length,f=[];if(d)for(var g=function(a,c,g){d--;f[a]=c?{fulfilled:!0,value:g}:{fulfilled:!1,reason:g};0==d&&b(f)},h=0,k;h<a.length;h++)k=a[h],goog.Promise.resolveThen_(k,goog.partial(g,h,!0),goog.partial(g,h,!1));else b(f)})};
-goog.Promise.firstFulfilled=function(a){return new goog.Promise(function(b,c){var d=a.length,f=[];if(d)for(var g=function(a){b(a)},h=function(a,b){d--;f[a]=b;0==d&&c(f)},k=0,l;k<a.length;k++)l=a[k],goog.Promise.resolveThen_(l,g,goog.partial(h,k));else b(void 0)})};goog.Promise.withResolver=function(){var a,b,c=new goog.Promise(function(c,f){a=c;b=f});return new goog.Promise.Resolver_(c,a,b)};
+goog.Promise.resolveThen_=function(a,b,c){goog.Promise.maybeThen_(a,b,c,null)||goog.async.run(goog.partial(b,a))};goog.Promise.race=function(a){return new goog.Promise(function(b,c){a.length||b(void 0);for(var d=0,e;d<a.length;d++)e=a[d],goog.Promise.resolveThen_(e,b,c)})};
+goog.Promise.all=function(a){return new goog.Promise(function(b,c){var d=a.length,e=[];if(d)for(var f=function(a,c){d--;e[a]=c;0==d&&b(e)},g=function(a){c(a)},h=0,k;h<a.length;h++)k=a[h],goog.Promise.resolveThen_(k,goog.partial(f,h),g);else b(e)})};
+goog.Promise.allSettled=function(a){return new goog.Promise(function(b,c){var d=a.length,e=[];if(d)for(var f=function(a,c,f){d--;e[a]=c?{fulfilled:!0,value:f}:{fulfilled:!1,reason:f};0==d&&b(e)},g=0,h;g<a.length;g++)h=a[g],goog.Promise.resolveThen_(h,goog.partial(f,g,!0),goog.partial(f,g,!1));else b(e)})};
+goog.Promise.firstFulfilled=function(a){return new goog.Promise(function(b,c){var d=a.length,e=[];if(d)for(var f=function(a){b(a)},g=function(a,b){d--;e[a]=b;0==d&&c(e)},h=0,k;h<a.length;h++)k=a[h],goog.Promise.resolveThen_(k,f,goog.partial(g,h));else b(void 0)})};goog.Promise.withResolver=function(){var a,b,c=new goog.Promise(function(c,e){a=c;b=e});return new goog.Promise.Resolver_(c,a,b)};
 goog.Promise.prototype.then=function(a,b,c){null!=a&&goog.asserts.assertFunction(a,"opt_onFulfilled should be a function.");null!=b&&goog.asserts.assertFunction(b,"opt_onRejected should be a function. Did you pass opt_context as the second argument instead of the third?");goog.Promise.LONG_STACK_TRACES&&this.addStackTrace_(Error("then"));return this.addChildPromise_(goog.isFunction(a)?a:null,goog.isFunction(b)?b:null,c)};goog.Thenable.addImplementation(goog.Promise);
 goog.Promise.prototype.thenVoid=function(a,b,c){null!=a&&goog.asserts.assertFunction(a,"opt_onFulfilled should be a function.");null!=b&&goog.asserts.assertFunction(b,"opt_onRejected should be a function. Did you pass opt_context as the second argument instead of the third?");goog.Promise.LONG_STACK_TRACES&&this.addStackTrace_(Error("then"));this.addCallbackEntry_(goog.Promise.getCallbackEntry_(a||goog.nullFunction,b||null,c))};
 goog.Promise.prototype.thenAlways=function(a,b){goog.Promise.LONG_STACK_TRACES&&this.addStackTrace_(Error("thenAlways"));var c=goog.Promise.getCallbackEntry_(a,a,b);c.always=!0;this.addCallbackEntry_(c);return this};goog.Promise.prototype.thenCatch=function(a,b){goog.Promise.LONG_STACK_TRACES&&this.addStackTrace_(Error("thenCatch"));return this.addChildPromise_(null,a,b)};
 goog.Promise.prototype.cancel=function(a){this.state_==goog.Promise.State_.PENDING&&goog.async.run(function(){var b=new goog.Promise.CancellationError(a);this.cancelInternal_(b)},this)};goog.Promise.prototype.cancelInternal_=function(a){this.state_==goog.Promise.State_.PENDING&&(this.parent_?(this.parent_.cancelChild_(this,a),this.parent_=null):this.resolve_(goog.Promise.State_.REJECTED,a))};
-goog.Promise.prototype.cancelChild_=function(a,b){if(this.callbackEntries_){for(var c=0,d=null,f=null,g=this.callbackEntries_;g&&(g.always||(c++,g.child==a&&(d=g),!(d&&1<c)));g=g.next)d||(f=g);d&&(this.state_==goog.Promise.State_.PENDING&&1==c?this.cancelInternal_(b):(f?this.removeEntryAfter_(f):this.popEntry_(),this.executeCallback_(d,goog.Promise.State_.REJECTED,b)))}};
+goog.Promise.prototype.cancelChild_=function(a,b){if(this.callbackEntries_){for(var c=0,d=null,e=null,f=this.callbackEntries_;f&&(f.always||(c++,f.child==a&&(d=f),!(d&&1<c)));f=f.next)d||(e=f);d&&(this.state_==goog.Promise.State_.PENDING&&1==c?this.cancelInternal_(b):(e?this.removeEntryAfter_(e):this.popEntry_(),this.executeCallback_(d,goog.Promise.State_.REJECTED,b)))}};
 goog.Promise.prototype.addCallbackEntry_=function(a){this.hasEntry_()||this.state_!=goog.Promise.State_.FULFILLED&&this.state_!=goog.Promise.State_.REJECTED||this.scheduleCallbacks_();this.queueEntry_(a)};
-goog.Promise.prototype.addChildPromise_=function(a,b,c){var d=goog.Promise.getCallbackEntry_(null,null,null);d.child=new goog.Promise(function(f,g){d.onFulfilled=a?function(b){try{var d=a.call(c,b);f(d)}catch(l){g(l)}}:f;d.onRejected=b?function(a){try{var d=b.call(c,a);!goog.isDef(d)&&a instanceof goog.Promise.CancellationError?g(a):f(d)}catch(l){g(l)}}:g});d.child.parent_=this;this.addCallbackEntry_(d);return d.child};
+goog.Promise.prototype.addChildPromise_=function(a,b,c){var d=goog.Promise.getCallbackEntry_(null,null,null);d.child=new goog.Promise(function(e,f){d.onFulfilled=a?function(b){try{var d=a.call(c,b);e(d)}catch(k){f(k)}}:e;d.onRejected=b?function(a){try{var d=b.call(c,a);!goog.isDef(d)&&a instanceof goog.Promise.CancellationError?f(a):e(d)}catch(k){f(k)}}:f});d.child.parent_=this;this.addCallbackEntry_(d);return d.child};
 goog.Promise.prototype.unblockAndFulfill_=function(a){goog.asserts.assert(this.state_==goog.Promise.State_.BLOCKED);this.state_=goog.Promise.State_.PENDING;this.resolve_(goog.Promise.State_.FULFILLED,a)};goog.Promise.prototype.unblockAndReject_=function(a){goog.asserts.assert(this.state_==goog.Promise.State_.BLOCKED);this.state_=goog.Promise.State_.PENDING;this.resolve_(goog.Promise.State_.REJECTED,a)};
 goog.Promise.prototype.resolve_=function(a,b){this.state_==goog.Promise.State_.PENDING&&(this==b&&(a=goog.Promise.State_.REJECTED,b=new TypeError("Promise cannot resolve to itself")),this.state_=goog.Promise.State_.BLOCKED,goog.Promise.maybeThen_(b,this.unblockAndFulfill_,this.unblockAndReject_,this)||(this.result_=b,this.state_=a,this.parent_=null,this.scheduleCallbacks_(),a!=goog.Promise.State_.REJECTED||b instanceof goog.Promise.CancellationError||goog.Promise.addUnhandledRejection_(this,b)))};
-goog.Promise.maybeThen_=function(a,b,c,d){if(a instanceof goog.Promise)return a.thenVoid(b,c,d),!0;if(goog.Thenable.isImplementedBy(a))return a.then(b,c,d),!0;if(goog.isObject(a))try{var f=a.then;if(goog.isFunction(f))return goog.Promise.tryThen_(a,f,b,c,d),!0}catch(g){return c.call(d,g),!0}return!1};goog.Promise.tryThen_=function(a,b,c,d,f){var g=!1,h=function(a){g||(g=!0,c.call(f,a))},k=function(a){g||(g=!0,d.call(f,a))};try{b.call(a,h,k)}catch(l){k(l)}};
+goog.Promise.maybeThen_=function(a,b,c,d){if(a instanceof goog.Promise)return a.thenVoid(b,c,d),!0;if(goog.Thenable.isImplementedBy(a))return a.then(b,c,d),!0;if(goog.isObject(a))try{var e=a.then;if(goog.isFunction(e))return goog.Promise.tryThen_(a,e,b,c,d),!0}catch(f){return c.call(d,f),!0}return!1};goog.Promise.tryThen_=function(a,b,c,d,e){var f=!1,g=function(a){f||(f=!0,c.call(e,a))},h=function(a){f||(f=!0,d.call(e,a))};try{b.call(a,g,h)}catch(k){h(k)}};
 goog.Promise.prototype.scheduleCallbacks_=function(){this.executing_||(this.executing_=!0,goog.async.run(this.executeCallbacks_,this))};goog.Promise.prototype.hasEntry_=function(){return!!this.callbackEntries_};goog.Promise.prototype.queueEntry_=function(a){goog.asserts.assert(null!=a.onFulfilled);this.callbackEntriesTail_?this.callbackEntriesTail_.next=a:this.callbackEntries_=a;this.callbackEntriesTail_=a};
 goog.Promise.prototype.popEntry_=function(){var a=null;this.callbackEntries_&&(a=this.callbackEntries_,this.callbackEntries_=a.next,a.next=null);this.callbackEntries_||(this.callbackEntriesTail_=null);null!=a&&goog.asserts.assert(null!=a.onFulfilled);return a};goog.Promise.prototype.removeEntryAfter_=function(a){goog.asserts.assert(this.callbackEntries_);goog.asserts.assert(null!=a);a.next==this.callbackEntriesTail_&&(this.callbackEntriesTail_=a);a.next=a.next.next};
 goog.Promise.prototype.executeCallbacks_=function(){for(var a=null;a=this.popEntry_();)goog.Promise.LONG_STACK_TRACES&&this.currentStep_++,this.executeCallback_(a,this.state_,this.result_);this.executing_=!1};
@@ -422,19 +422,19 @@ goog.events.EventTarget.prototype.setParentEventTarget=function(a){this.parentEv
 goog.events.EventTarget.prototype.dispatchEvent=function(a){this.assertInitialized_();var b,c=this.getParentEventTarget();if(c){b=[];for(var d=1;c;c=c.getParentEventTarget())b.push(c),goog.asserts.assert(++d<goog.events.EventTarget.MAX_ANCESTORS_,"infinite loop")}return goog.events.EventTarget.dispatchEventInternal_(this.actualEventTarget_,a,b)};
 goog.events.EventTarget.prototype.disposeInternal=function(){goog.events.EventTarget.superClass_.disposeInternal.call(this);this.removeAllListeners();this.parentEventTarget_=null};goog.events.EventTarget.prototype.listen=function(a,b,c,d){this.assertInitialized_();return this.eventTargetListeners_.add(String(a),b,!1,c,d)};goog.events.EventTarget.prototype.listenOnce=function(a,b,c,d){return this.eventTargetListeners_.add(String(a),b,!0,c,d)};
 goog.events.EventTarget.prototype.unlisten=function(a,b,c,d){return this.eventTargetListeners_.remove(String(a),b,c,d)};goog.events.EventTarget.prototype.unlistenByKey=function(a){return this.eventTargetListeners_.removeByKey(a)};goog.events.EventTarget.prototype.removeAllListeners=function(a){return this.eventTargetListeners_?this.eventTargetListeners_.removeAll(a):0};
-goog.events.EventTarget.prototype.fireListeners=function(a,b,c){a=this.eventTargetListeners_.listeners[String(a)];if(!a)return!0;a=a.concat();for(var d=!0,f=0;f<a.length;++f){var g=a[f];if(g&&!g.removed&&g.capture==b){var h=g.listener,k=g.handler||g.src;g.callOnce&&this.unlistenByKey(g);d=!1!==h.call(k,c)&&d}}return d&&0!=c.returnValue_};goog.events.EventTarget.prototype.getListeners=function(a,b){return this.eventTargetListeners_.getListeners(String(a),b)};
+goog.events.EventTarget.prototype.fireListeners=function(a,b,c){a=this.eventTargetListeners_.listeners[String(a)];if(!a)return!0;a=a.concat();for(var d=!0,e=0;e<a.length;++e){var f=a[e];if(f&&!f.removed&&f.capture==b){var g=f.listener,h=f.handler||f.src;f.callOnce&&this.unlistenByKey(f);d=!1!==g.call(h,c)&&d}}return d&&0!=c.returnValue_};goog.events.EventTarget.prototype.getListeners=function(a,b){return this.eventTargetListeners_.getListeners(String(a),b)};
 goog.events.EventTarget.prototype.getListener=function(a,b,c,d){return this.eventTargetListeners_.getListener(String(a),b,c,d)};goog.events.EventTarget.prototype.hasListener=function(a,b){var c=goog.isDef(a)?String(a):void 0;return this.eventTargetListeners_.hasListener(c,b)};goog.events.EventTarget.prototype.setTargetForTesting=function(a){this.actualEventTarget_=a};goog.events.EventTarget.prototype.assertInitialized_=function(){goog.asserts.assert(this.eventTargetListeners_,"Event target is not initialized. Did you call the superclass (goog.events.EventTarget) constructor?")};
-goog.events.EventTarget.dispatchEventInternal_=function(a,b,c){var d=b.type||b;if(goog.isString(b))b=new goog.events.Event(b,a);else if(b instanceof goog.events.Event)b.target=b.target||a;else{var f=b;b=new goog.events.Event(d,a);goog.object.extend(b,f)}var f=!0,g;if(c)for(var h=c.length-1;!b.propagationStopped_&&0<=h;h--)g=b.currentTarget=c[h],f=g.fireListeners(d,!0,b)&&f;b.propagationStopped_||(g=b.currentTarget=a,f=g.fireListeners(d,!0,b)&&f,b.propagationStopped_||(f=g.fireListeners(d,!1,b)&&f));
-if(c)for(h=0;!b.propagationStopped_&&h<c.length;h++)g=b.currentTarget=c[h],f=g.fireListeners(d,!1,b)&&f;return f};goog.Timer=function(a,b){goog.events.EventTarget.call(this);this.interval_=a||1;this.timerObject_=b||goog.Timer.defaultTimerObject;this.boundTick_=goog.bind(this.tick_,this);this.last_=goog.now()};goog.inherits(goog.Timer,goog.events.EventTarget);goog.Timer.MAX_TIMEOUT_=2147483647;goog.Timer.INVALID_TIMEOUT_ID_=-1;goog.Timer.prototype.enabled=!1;goog.Timer.defaultTimerObject=goog.global;goog.Timer.intervalScale=.8;goog.Timer.prototype.timer_=null;goog.Timer.prototype.getInterval=function(){return this.interval_};
+goog.events.EventTarget.dispatchEventInternal_=function(a,b,c){var d=b.type||b;if(goog.isString(b))b=new goog.events.Event(b,a);else if(b instanceof goog.events.Event)b.target=b.target||a;else{var e=b;b=new goog.events.Event(d,a);goog.object.extend(b,e)}var e=!0,f;if(c)for(var g=c.length-1;!b.propagationStopped_&&0<=g;g--)f=b.currentTarget=c[g],e=f.fireListeners(d,!0,b)&&e;b.propagationStopped_||(f=b.currentTarget=a,e=f.fireListeners(d,!0,b)&&e,b.propagationStopped_||(e=f.fireListeners(d,!1,b)&&e));
+if(c)for(g=0;!b.propagationStopped_&&g<c.length;g++)f=b.currentTarget=c[g],e=f.fireListeners(d,!1,b)&&e;return e};goog.Timer=function(a,b){goog.events.EventTarget.call(this);this.interval_=a||1;this.timerObject_=b||goog.Timer.defaultTimerObject;this.boundTick_=goog.bind(this.tick_,this);this.last_=goog.now()};goog.inherits(goog.Timer,goog.events.EventTarget);goog.Timer.MAX_TIMEOUT_=2147483647;goog.Timer.INVALID_TIMEOUT_ID_=-1;goog.Timer.prototype.enabled=!1;goog.Timer.defaultTimerObject=goog.global;goog.Timer.intervalScale=.8;goog.Timer.prototype.timer_=null;goog.Timer.prototype.getInterval=function(){return this.interval_};
 goog.Timer.prototype.setInterval=function(a){this.interval_=a;this.timer_&&this.enabled?(this.stop(),this.start()):this.timer_&&this.stop()};
 goog.Timer.prototype.tick_=function(){if(this.enabled){var a=goog.now()-this.last_;0<a&&a<this.interval_*goog.Timer.intervalScale?this.timer_=this.timerObject_.setTimeout(this.boundTick_,this.interval_-a):(this.timer_&&(this.timerObject_.clearTimeout(this.timer_),this.timer_=null),this.dispatchTick(),this.enabled&&(this.timer_=this.timerObject_.setTimeout(this.boundTick_,this.interval_),this.last_=goog.now()))}};goog.Timer.prototype.dispatchTick=function(){this.dispatchEvent(goog.Timer.TICK)};
 goog.Timer.prototype.start=function(){this.enabled=!0;this.timer_||(this.timer_=this.timerObject_.setTimeout(this.boundTick_,this.interval_),this.last_=goog.now())};goog.Timer.prototype.stop=function(){this.enabled=!1;this.timer_&&(this.timerObject_.clearTimeout(this.timer_),this.timer_=null)};goog.Timer.prototype.disposeInternal=function(){goog.Timer.superClass_.disposeInternal.call(this);this.stop();delete this.timerObject_};goog.Timer.TICK="tick";
 goog.Timer.callOnce=function(a,b,c){if(goog.isFunction(a))c&&(a=goog.bind(a,c));else if(a&&"function"==typeof a.handleEvent)a=goog.bind(a.handleEvent,a);else throw Error("Invalid listener argument");return Number(b)>goog.Timer.MAX_TIMEOUT_?goog.Timer.INVALID_TIMEOUT_ID_:goog.Timer.defaultTimerObject.setTimeout(a,b||0)};goog.Timer.clear=function(a){goog.Timer.defaultTimerObject.clearTimeout(a)};
-goog.Timer.promise=function(a,b){var c=null;return(new goog.Promise(function(d,f){c=goog.Timer.callOnce(function(){d(b)},a);c==goog.Timer.INVALID_TIMEOUT_ID_&&f(Error("Failed to schedule timer."))})).thenCatch(function(a){goog.Timer.clear(c);throw a;})};goog.events.EventHandler=function(a){goog.Disposable.call(this);this.handler_=a;this.keys_={}};goog.inherits(goog.events.EventHandler,goog.Disposable);goog.events.EventHandler.typeArray_=[];goog.events.EventHandler.prototype.listen=function(a,b,c,d){return this.listen_(a,b,c,d)};goog.events.EventHandler.prototype.listenWithScope=function(a,b,c,d,f){return this.listen_(a,b,c,d,f)};
-goog.events.EventHandler.prototype.listen_=function(a,b,c,d,f){goog.isArray(b)||(b&&(goog.events.EventHandler.typeArray_[0]=b.toString()),b=goog.events.EventHandler.typeArray_);for(var g=0;g<b.length;g++){var h=goog.events.listen(a,b[g],c||this.handleEvent,d||!1,f||this.handler_||this);if(!h)break;this.keys_[h.key]=h}return this};goog.events.EventHandler.prototype.listenOnce=function(a,b,c,d){return this.listenOnce_(a,b,c,d)};
-goog.events.EventHandler.prototype.listenOnceWithScope=function(a,b,c,d,f){return this.listenOnce_(a,b,c,d,f)};goog.events.EventHandler.prototype.listenOnce_=function(a,b,c,d,f){if(goog.isArray(b))for(var g=0;g<b.length;g++)this.listenOnce_(a,b[g],c,d,f);else{a=goog.events.listenOnce(a,b,c||this.handleEvent,d,f||this.handler_||this);if(!a)return this;this.keys_[a.key]=a}return this};goog.events.EventHandler.prototype.listenWithWrapper=function(a,b,c,d){return this.listenWithWrapper_(a,b,c,d)};
-goog.events.EventHandler.prototype.listenWithWrapperAndScope=function(a,b,c,d,f){return this.listenWithWrapper_(a,b,c,d,f)};goog.events.EventHandler.prototype.listenWithWrapper_=function(a,b,c,d,f){b.listen(a,c,d,f||this.handler_||this,this);return this};goog.events.EventHandler.prototype.getListenerCount=function(){var a=0,b;for(b in this.keys_)Object.prototype.hasOwnProperty.call(this.keys_,b)&&a++;return a};
-goog.events.EventHandler.prototype.unlisten=function(a,b,c,d,f){if(goog.isArray(b))for(var g=0;g<b.length;g++)this.unlisten(a,b[g],c,d,f);else if(a=goog.events.getListener(a,b,c||this.handleEvent,d,f||this.handler_||this))goog.events.unlistenByKey(a),delete this.keys_[a.key];return this};goog.events.EventHandler.prototype.unlistenWithWrapper=function(a,b,c,d,f){b.unlisten(a,c,d,f||this.handler_||this,this);return this};
+goog.Timer.promise=function(a,b){var c=null;return(new goog.Promise(function(d,e){c=goog.Timer.callOnce(function(){d(b)},a);c==goog.Timer.INVALID_TIMEOUT_ID_&&e(Error("Failed to schedule timer."))})).thenCatch(function(a){goog.Timer.clear(c);throw a;})};goog.events.EventHandler=function(a){goog.Disposable.call(this);this.handler_=a;this.keys_={}};goog.inherits(goog.events.EventHandler,goog.Disposable);goog.events.EventHandler.typeArray_=[];goog.events.EventHandler.prototype.listen=function(a,b,c,d){return this.listen_(a,b,c,d)};goog.events.EventHandler.prototype.listenWithScope=function(a,b,c,d,e){return this.listen_(a,b,c,d,e)};
+goog.events.EventHandler.prototype.listen_=function(a,b,c,d,e){goog.isArray(b)||(b&&(goog.events.EventHandler.typeArray_[0]=b.toString()),b=goog.events.EventHandler.typeArray_);for(var f=0;f<b.length;f++){var g=goog.events.listen(a,b[f],c||this.handleEvent,d||!1,e||this.handler_||this);if(!g)break;this.keys_[g.key]=g}return this};goog.events.EventHandler.prototype.listenOnce=function(a,b,c,d){return this.listenOnce_(a,b,c,d)};
+goog.events.EventHandler.prototype.listenOnceWithScope=function(a,b,c,d,e){return this.listenOnce_(a,b,c,d,e)};goog.events.EventHandler.prototype.listenOnce_=function(a,b,c,d,e){if(goog.isArray(b))for(var f=0;f<b.length;f++)this.listenOnce_(a,b[f],c,d,e);else{a=goog.events.listenOnce(a,b,c||this.handleEvent,d,e||this.handler_||this);if(!a)return this;this.keys_[a.key]=a}return this};goog.events.EventHandler.prototype.listenWithWrapper=function(a,b,c,d){return this.listenWithWrapper_(a,b,c,d)};
+goog.events.EventHandler.prototype.listenWithWrapperAndScope=function(a,b,c,d,e){return this.listenWithWrapper_(a,b,c,d,e)};goog.events.EventHandler.prototype.listenWithWrapper_=function(a,b,c,d,e){b.listen(a,c,d,e||this.handler_||this,this);return this};goog.events.EventHandler.prototype.getListenerCount=function(){var a=0,b;for(b in this.keys_)Object.prototype.hasOwnProperty.call(this.keys_,b)&&a++;return a};
+goog.events.EventHandler.prototype.unlisten=function(a,b,c,d,e){if(goog.isArray(b))for(var f=0;f<b.length;f++)this.unlisten(a,b[f],c,d,e);else if(a=goog.events.getListener(a,b,c||this.handleEvent,d,e||this.handler_||this))goog.events.unlistenByKey(a),delete this.keys_[a.key];return this};goog.events.EventHandler.prototype.unlistenWithWrapper=function(a,b,c,d,e){b.unlisten(a,c,d,e||this.handler_||this,this);return this};
 goog.events.EventHandler.prototype.removeAll=function(){goog.object.forEach(this.keys_,function(a,b){this.keys_.hasOwnProperty(b)&&goog.events.unlistenByKey(a)},this);this.keys_={}};goog.events.EventHandler.prototype.disposeInternal=function(){goog.events.EventHandler.superClass_.disposeInternal.call(this);this.removeAll()};goog.events.EventHandler.prototype.handleEvent=function(a){throw Error("EventHandler.handleEvent not implemented");};goog.ui={};goog.ui.IdGenerator=function(){};goog.addSingletonGetter(goog.ui.IdGenerator);goog.ui.IdGenerator.prototype.nextId_=0;goog.ui.IdGenerator.prototype.getNextUniqueId=function(){return":"+(this.nextId_++).toString(36)};goog.ui.Component=function(a){goog.events.EventTarget.call(this);this.dom_=a||goog.dom.getDomHelper();this.rightToLeft_=goog.ui.Component.defaultRightToLeft_;this.id_=null;this.inDocument_=!1;this.element_=null;this.googUiComponentHandler_=void 0;this.childIndex_=this.children_=this.parent_=this.model_=null;this.wasDecorated_=!1};goog.inherits(goog.ui.Component,goog.events.EventTarget);goog.ui.Component.ALLOW_DETACHED_DECORATION=!1;goog.ui.Component.prototype.idGenerator_=goog.ui.IdGenerator.getInstance();
 goog.ui.Component.DEFAULT_BIDI_DIR=0;goog.ui.Component.defaultRightToLeft_=1==goog.ui.Component.DEFAULT_BIDI_DIR?!1:-1==goog.ui.Component.DEFAULT_BIDI_DIR?!0:null;
 goog.ui.Component.EventType={BEFORE_SHOW:"beforeshow",SHOW:"show",HIDE:"hide",DISABLE:"disable",ENABLE:"enable",HIGHLIGHT:"highlight",UNHIGHLIGHT:"unhighlight",ACTIVATE:"activate",DEACTIVATE:"deactivate",SELECT:"select",UNSELECT:"unselect",CHECK:"check",UNCHECK:"uncheck",FOCUS:"focus",BLUR:"blur",OPEN:"open",CLOSE:"close",ENTER:"enter",LEAVE:"leave",ACTION:"action",CHANGE:"change"};
@@ -482,7 +482,7 @@ Q:81,R:82,S:83,T:84,U:85,V:86,W:87,X:88,Y:89,Z:90,META:91,WIN_KEY_RIGHT:92,CONTE
 SLASH:191,APOSTROPHE:192,TILDE:192,SINGLE_QUOTE:222,OPEN_SQUARE_BRACKET:219,BACKSLASH:220,CLOSE_SQUARE_BRACKET:221,WIN_KEY:224,MAC_FF_META:224,MAC_WK_CMD_LEFT:91,MAC_WK_CMD_RIGHT:93,WIN_IME:229,VK_NONAME:252,PHANTOM:255};
 goog.events.KeyCodes.isTextModifyingKeyEvent=function(a){if(a.altKey&&!a.ctrlKey||a.metaKey||a.keyCode>=goog.events.KeyCodes.F1&&a.keyCode<=goog.events.KeyCodes.F12)return!1;switch(a.keyCode){case goog.events.KeyCodes.ALT:case goog.events.KeyCodes.CAPS_LOCK:case goog.events.KeyCodes.CONTEXT_MENU:case goog.events.KeyCodes.CTRL:case goog.events.KeyCodes.DOWN:case goog.events.KeyCodes.END:case goog.events.KeyCodes.ESC:case goog.events.KeyCodes.HOME:case goog.events.KeyCodes.INSERT:case goog.events.KeyCodes.LEFT:case goog.events.KeyCodes.MAC_FF_META:case goog.events.KeyCodes.META:case goog.events.KeyCodes.NUMLOCK:case goog.events.KeyCodes.NUM_CENTER:case goog.events.KeyCodes.PAGE_DOWN:case goog.events.KeyCodes.PAGE_UP:case goog.events.KeyCodes.PAUSE:case goog.events.KeyCodes.PHANTOM:case goog.events.KeyCodes.PRINT_SCREEN:case goog.events.KeyCodes.RIGHT:case goog.events.KeyCodes.SCROLL_LOCK:case goog.events.KeyCodes.SHIFT:case goog.events.KeyCodes.UP:case goog.events.KeyCodes.VK_NONAME:case goog.events.KeyCodes.WIN_KEY:case goog.events.KeyCodes.WIN_KEY_RIGHT:return!1;case goog.events.KeyCodes.WIN_KEY_FF_LINUX:return!goog.userAgent.GECKO;
 default:return a.keyCode<goog.events.KeyCodes.FIRST_MEDIA_KEY||a.keyCode>goog.events.KeyCodes.LAST_MEDIA_KEY}};
-goog.events.KeyCodes.firesKeyPressEvent=function(a,b,c,d,f){if(!(goog.userAgent.IE||goog.userAgent.EDGE||goog.userAgent.WEBKIT&&goog.userAgent.isVersionOrHigher("525")))return!0;if(goog.userAgent.MAC&&f)return goog.events.KeyCodes.isCharacterKey(a);if(f&&!d)return!1;goog.isNumber(b)&&(b=goog.events.KeyCodes.normalizeKeyCode(b));if(!c&&(b==goog.events.KeyCodes.CTRL||b==goog.events.KeyCodes.ALT||goog.userAgent.MAC&&b==goog.events.KeyCodes.META))return!1;if((goog.userAgent.WEBKIT||goog.userAgent.EDGE)&&
+goog.events.KeyCodes.firesKeyPressEvent=function(a,b,c,d,e){if(!(goog.userAgent.IE||goog.userAgent.EDGE||goog.userAgent.WEBKIT&&goog.userAgent.isVersionOrHigher("525")))return!0;if(goog.userAgent.MAC&&e)return goog.events.KeyCodes.isCharacterKey(a);if(e&&!d)return!1;goog.isNumber(b)&&(b=goog.events.KeyCodes.normalizeKeyCode(b));if(!c&&(b==goog.events.KeyCodes.CTRL||b==goog.events.KeyCodes.ALT||goog.userAgent.MAC&&b==goog.events.KeyCodes.META))return!1;if((goog.userAgent.WEBKIT||goog.userAgent.EDGE)&&
 d&&c)switch(a){case goog.events.KeyCodes.BACKSLASH:case goog.events.KeyCodes.OPEN_SQUARE_BRACKET:case goog.events.KeyCodes.CLOSE_SQUARE_BRACKET:case goog.events.KeyCodes.TILDE:case goog.events.KeyCodes.SEMICOLON:case goog.events.KeyCodes.DASH:case goog.events.KeyCodes.EQUALS:case goog.events.KeyCodes.COMMA:case goog.events.KeyCodes.PERIOD:case goog.events.KeyCodes.SLASH:case goog.events.KeyCodes.APOSTROPHE:case goog.events.KeyCodes.SINGLE_QUOTE:return!1}if(goog.userAgent.IE&&d&&b==a)return!1;switch(a){case goog.events.KeyCodes.ENTER:return!0;
 case goog.events.KeyCodes.ESC:return!(goog.userAgent.WEBKIT||goog.userAgent.EDGE)}return goog.events.KeyCodes.isCharacterKey(a)};
 goog.events.KeyCodes.isCharacterKey=function(a){if(a>=goog.events.KeyCodes.ZERO&&a<=goog.events.KeyCodes.NINE||a>=goog.events.KeyCodes.NUM_ZERO&&a<=goog.events.KeyCodes.NUM_MULTIPLY||a>=goog.events.KeyCodes.A&&a<=goog.events.KeyCodes.Z||(goog.userAgent.WEBKIT||goog.userAgent.EDGE)&&0==a)return!0;switch(a){case goog.events.KeyCodes.SPACE:case goog.events.KeyCodes.PLUS_SIGN:case goog.events.KeyCodes.QUESTION_MARK:case goog.events.KeyCodes.AT_SIGN:case goog.events.KeyCodes.NUM_PLUS:case goog.events.KeyCodes.NUM_MINUS:case goog.events.KeyCodes.NUM_PERIOD:case goog.events.KeyCodes.NUM_DIVISION:case goog.events.KeyCodes.SEMICOLON:case goog.events.KeyCodes.FF_SEMICOLON:case goog.events.KeyCodes.DASH:case goog.events.KeyCodes.EQUALS:case goog.events.KeyCodes.FF_EQUALS:case goog.events.KeyCodes.COMMA:case goog.events.KeyCodes.PERIOD:case goog.events.KeyCodes.SLASH:case goog.events.KeyCodes.APOSTROPHE:case goog.events.KeyCodes.SINGLE_QUOTE:case goog.events.KeyCodes.OPEN_SQUARE_BRACKET:case goog.events.KeyCodes.BACKSLASH:case goog.events.KeyCodes.CLOSE_SQUARE_BRACKET:return!0;default:return!1}};
@@ -497,9 +497,9 @@ goog.events.KeyHandler.keyIdentifier_={Up:goog.events.KeyCodes.UP,Down:goog.even
 goog.events.KeyHandler.prototype.handleKeyDown_=function(a){(goog.userAgent.WEBKIT||goog.userAgent.EDGE)&&(this.lastKey_==goog.events.KeyCodes.CTRL&&!a.ctrlKey||this.lastKey_==goog.events.KeyCodes.ALT&&!a.altKey||goog.userAgent.MAC&&this.lastKey_==goog.events.KeyCodes.META&&!a.metaKey)&&this.resetState();-1==this.lastKey_&&(a.ctrlKey&&a.keyCode!=goog.events.KeyCodes.CTRL?this.lastKey_=goog.events.KeyCodes.CTRL:a.altKey&&a.keyCode!=goog.events.KeyCodes.ALT?this.lastKey_=goog.events.KeyCodes.ALT:a.metaKey&&
 a.keyCode!=goog.events.KeyCodes.META&&(this.lastKey_=goog.events.KeyCodes.META));goog.events.KeyHandler.USES_KEYDOWN_&&!goog.events.KeyCodes.firesKeyPressEvent(a.keyCode,this.lastKey_,a.shiftKey,a.ctrlKey,a.altKey)?this.handleEvent(a):(this.keyCode_=goog.events.KeyCodes.normalizeKeyCode(a.keyCode),goog.events.KeyHandler.SAVE_ALT_FOR_KEYPRESS_&&(this.altKey_=a.altKey))};goog.events.KeyHandler.prototype.resetState=function(){this.keyCode_=this.lastKey_=-1};
 goog.events.KeyHandler.prototype.handleKeyup_=function(a){this.resetState();this.altKey_=a.altKey};
-goog.events.KeyHandler.prototype.handleEvent=function(a){var b=a.getBrowserEvent(),c,d,f=b.altKey;goog.userAgent.IE&&a.type==goog.events.EventType.KEYPRESS?(c=this.keyCode_,d=c!=goog.events.KeyCodes.ENTER&&c!=goog.events.KeyCodes.ESC?b.keyCode:0):(goog.userAgent.WEBKIT||goog.userAgent.EDGE)&&a.type==goog.events.EventType.KEYPRESS?(c=this.keyCode_,d=0<=b.charCode&&63232>b.charCode&&goog.events.KeyCodes.isCharacterKey(c)?b.charCode:0):goog.userAgent.OPERA&&!goog.userAgent.WEBKIT?(c=this.keyCode_,d=
-goog.events.KeyCodes.isCharacterKey(c)?b.keyCode:0):(c=b.keyCode||this.keyCode_,d=b.charCode||0,goog.events.KeyHandler.SAVE_ALT_FOR_KEYPRESS_&&(f=this.altKey_),goog.userAgent.MAC&&d==goog.events.KeyCodes.QUESTION_MARK&&c==goog.events.KeyCodes.WIN_KEY&&(c=goog.events.KeyCodes.SLASH));var g=c=goog.events.KeyCodes.normalizeKeyCode(c),h=b.keyIdentifier;c?63232<=c&&c in goog.events.KeyHandler.safariKey_?g=goog.events.KeyHandler.safariKey_[c]:25==c&&a.shiftKey&&(g=9):h&&h in goog.events.KeyHandler.keyIdentifier_&&
-(g=goog.events.KeyHandler.keyIdentifier_[h]);a=g==this.lastKey_;this.lastKey_=g;b=new goog.events.KeyEvent(g,d,a,b);b.altKey=f;this.dispatchEvent(b)};goog.events.KeyHandler.prototype.getElement=function(){return this.element_};
+goog.events.KeyHandler.prototype.handleEvent=function(a){var b=a.getBrowserEvent(),c,d,e=b.altKey;goog.userAgent.IE&&a.type==goog.events.EventType.KEYPRESS?(c=this.keyCode_,d=c!=goog.events.KeyCodes.ENTER&&c!=goog.events.KeyCodes.ESC?b.keyCode:0):(goog.userAgent.WEBKIT||goog.userAgent.EDGE)&&a.type==goog.events.EventType.KEYPRESS?(c=this.keyCode_,d=0<=b.charCode&&63232>b.charCode&&goog.events.KeyCodes.isCharacterKey(c)?b.charCode:0):goog.userAgent.OPERA&&!goog.userAgent.WEBKIT?(c=this.keyCode_,d=
+goog.events.KeyCodes.isCharacterKey(c)?b.keyCode:0):(c=b.keyCode||this.keyCode_,d=b.charCode||0,goog.events.KeyHandler.SAVE_ALT_FOR_KEYPRESS_&&(e=this.altKey_),goog.userAgent.MAC&&d==goog.events.KeyCodes.QUESTION_MARK&&c==goog.events.KeyCodes.WIN_KEY&&(c=goog.events.KeyCodes.SLASH));var f=c=goog.events.KeyCodes.normalizeKeyCode(c),g=b.keyIdentifier;c?63232<=c&&c in goog.events.KeyHandler.safariKey_?f=goog.events.KeyHandler.safariKey_[c]:25==c&&a.shiftKey&&(f=9):g&&g in goog.events.KeyHandler.keyIdentifier_&&
+(f=goog.events.KeyHandler.keyIdentifier_[g]);a=f==this.lastKey_;this.lastKey_=f;b=new goog.events.KeyEvent(f,d,a,b);b.altKey=e;this.dispatchEvent(b)};goog.events.KeyHandler.prototype.getElement=function(){return this.element_};
 goog.events.KeyHandler.prototype.attach=function(a,b){this.keyUpKey_&&this.detach();this.element_=a;this.keyPressKey_=goog.events.listen(this.element_,goog.events.EventType.KEYPRESS,this,b);this.keyDownKey_=goog.events.listen(this.element_,goog.events.EventType.KEYDOWN,this.handleKeyDown_,b,this);this.keyUpKey_=goog.events.listen(this.element_,goog.events.EventType.KEYUP,this.handleKeyup_,b,this)};
 goog.events.KeyHandler.prototype.detach=function(){this.keyPressKey_&&(goog.events.unlistenByKey(this.keyPressKey_),goog.events.unlistenByKey(this.keyDownKey_),goog.events.unlistenByKey(this.keyUpKey_),this.keyUpKey_=this.keyDownKey_=this.keyPressKey_=null);this.element_=null;this.keyCode_=this.lastKey_=-1};goog.events.KeyHandler.prototype.disposeInternal=function(){goog.events.KeyHandler.superClass_.disposeInternal.call(this);this.detach()};
 goog.events.KeyEvent=function(a,b,c,d){goog.events.BrowserEvent.call(this,d);this.type=goog.events.KeyHandler.EventType.KEY;this.keyCode=a;this.charCode=b;this.repeat=c};goog.inherits(goog.events.KeyEvent,goog.events.BrowserEvent);goog.dom.classlist={};goog.dom.classlist.ALWAYS_USE_DOM_TOKEN_LIST=!1;goog.dom.classlist.get=function(a){if(goog.dom.classlist.ALWAYS_USE_DOM_TOKEN_LIST||a.classList)return a.classList;a=a.className;return goog.isString(a)&&a.match(/\S+/g)||[]};goog.dom.classlist.set=function(a,b){a.className=b};goog.dom.classlist.contains=function(a,b){return goog.dom.classlist.ALWAYS_USE_DOM_TOKEN_LIST||a.classList?a.classList.contains(b):goog.array.contains(goog.dom.classlist.get(a),b)};
@@ -512,22 +512,22 @@ goog.ui.registry.setDefaultRenderer=function(a,b){if(!goog.isFunction(a))throw E
 goog.ui.registry.setDecoratorByClassName=function(a,b){if(!a)throw Error("Invalid class name "+a);if(!goog.isFunction(b))throw Error("Invalid decorator function "+b);goog.ui.registry.decoratorFunctions_[a]=b};goog.ui.registry.getDecorator=function(a){goog.asserts.assert(a);for(var b=goog.dom.classlist.get(a),c=0,d=b.length;c<d;c++)if(a=goog.ui.registry.getDecoratorByClassName(b[c]))return a;return null};
 goog.ui.registry.reset=function(){goog.ui.registry.defaultRenderers_={};goog.ui.registry.decoratorFunctions_={}};goog.ui.registry.defaultRenderers_={};goog.ui.registry.decoratorFunctions_={};goog.ui.ContainerRenderer=function(a){this.ariaRole_=a};goog.addSingletonGetter(goog.ui.ContainerRenderer);goog.ui.ContainerRenderer.getCustomRenderer=function(a,b){var c=new a;c.getCssClass=function(){return b};return c};goog.ui.ContainerRenderer.CSS_CLASS="goog-container";goog.ui.ContainerRenderer.prototype.getAriaRole=function(){return this.ariaRole_};goog.ui.ContainerRenderer.prototype.enableTabIndex=function(a,b){a&&(a.tabIndex=b?0:-1)};
 goog.ui.ContainerRenderer.prototype.createDom=function(a){return a.getDomHelper().createDom(goog.dom.TagName.DIV,this.getClassNames(a).join(" "))};goog.ui.ContainerRenderer.prototype.getContentElement=function(a){return a};goog.ui.ContainerRenderer.prototype.canDecorate=function(a){return"DIV"==a.tagName};
-goog.ui.ContainerRenderer.prototype.decorate=function(a,b){b.id&&a.setId(b.id);var c=this.getCssClass(),d=!1,f=goog.dom.classlist.get(b);f&&goog.array.forEach(f,function(b){b==c?d=!0:b&&this.setStateFromClassName(a,b,c)},this);d||goog.dom.classlist.add(b,c);this.decorateChildren(a,this.getContentElement(b));return b};
+goog.ui.ContainerRenderer.prototype.decorate=function(a,b){b.id&&a.setId(b.id);var c=this.getCssClass(),d=!1,e=goog.dom.classlist.get(b);e&&goog.array.forEach(e,function(b){b==c?d=!0:b&&this.setStateFromClassName(a,b,c)},this);d||goog.dom.classlist.add(b,c);this.decorateChildren(a,this.getContentElement(b));return b};
 goog.ui.ContainerRenderer.prototype.setStateFromClassName=function(a,b,c){b==c+"-disabled"?a.setEnabled(!1):b==c+"-horizontal"?a.setOrientation(goog.ui.Container.Orientation.HORIZONTAL):b==c+"-vertical"&&a.setOrientation(goog.ui.Container.Orientation.VERTICAL)};
-goog.ui.ContainerRenderer.prototype.decorateChildren=function(a,b,c){if(b){c=c||b.firstChild;for(var d;c&&c.parentNode==b;){d=c.nextSibling;if(c.nodeType==goog.dom.NodeType.ELEMENT){var f=this.getDecoratorForChild(c);f&&(f.setElementInternal(c),a.isEnabled()||f.setEnabled(!1),a.addChild(f),f.decorate(c))}else c.nodeValue&&""!=goog.string.trim(c.nodeValue)||b.removeChild(c);c=d}}};goog.ui.ContainerRenderer.prototype.getDecoratorForChild=function(a){return goog.ui.registry.getDecorator(a)};
+goog.ui.ContainerRenderer.prototype.decorateChildren=function(a,b,c){if(b){c=c||b.firstChild;for(var d;c&&c.parentNode==b;){d=c.nextSibling;if(c.nodeType==goog.dom.NodeType.ELEMENT){var e=this.getDecoratorForChild(c);e&&(e.setElementInternal(c),a.isEnabled()||e.setEnabled(!1),a.addChild(e),e.decorate(c))}else c.nodeValue&&""!=goog.string.trim(c.nodeValue)||b.removeChild(c);c=d}}};goog.ui.ContainerRenderer.prototype.getDecoratorForChild=function(a){return goog.ui.registry.getDecorator(a)};
 goog.ui.ContainerRenderer.prototype.initializeDom=function(a){a=a.getElement();goog.asserts.assert(a,"The container DOM element cannot be null.");goog.style.setUnselectable(a,!0,goog.userAgent.GECKO);goog.userAgent.IE&&(a.hideFocus=!0);var b=this.getAriaRole();b&&goog.a11y.aria.setRole(a,b)};goog.ui.ContainerRenderer.prototype.getKeyEventTarget=function(a){return a.getElement()};goog.ui.ContainerRenderer.prototype.getCssClass=function(){return goog.ui.ContainerRenderer.CSS_CLASS};
 goog.ui.ContainerRenderer.prototype.getClassNames=function(a){var b=this.getCssClass(),c=a.getOrientation()==goog.ui.Container.Orientation.HORIZONTAL,c=[b,c?b+"-horizontal":b+"-vertical"];a.isEnabled()||c.push(b+"-disabled");return c};goog.ui.ContainerRenderer.prototype.getDefaultOrientation=function(){return goog.ui.Container.Orientation.VERTICAL};goog.ui.ControlRenderer=function(){};goog.addSingletonGetter(goog.ui.ControlRenderer);goog.tagUnsealableClass(goog.ui.ControlRenderer);goog.ui.ControlRenderer.getCustomRenderer=function(a,b){var c=new a;c.getCssClass=function(){return b};return c};goog.ui.ControlRenderer.CSS_CLASS="goog-control";goog.ui.ControlRenderer.IE6_CLASS_COMBINATIONS=[];
 goog.ui.ControlRenderer.TOGGLE_ARIA_STATE_MAP_=goog.object.create(goog.a11y.aria.Role.BUTTON,goog.a11y.aria.State.PRESSED,goog.a11y.aria.Role.CHECKBOX,goog.a11y.aria.State.CHECKED,goog.a11y.aria.Role.MENU_ITEM,goog.a11y.aria.State.SELECTED,goog.a11y.aria.Role.MENU_ITEM_CHECKBOX,goog.a11y.aria.State.CHECKED,goog.a11y.aria.Role.MENU_ITEM_RADIO,goog.a11y.aria.State.CHECKED,goog.a11y.aria.Role.RADIO,goog.a11y.aria.State.CHECKED,goog.a11y.aria.Role.TAB,goog.a11y.aria.State.SELECTED,goog.a11y.aria.Role.TREEITEM,
 goog.a11y.aria.State.SELECTED);goog.ui.ControlRenderer.prototype.getAriaRole=function(){};goog.ui.ControlRenderer.prototype.createDom=function(a){return a.getDomHelper().createDom(goog.dom.TagName.DIV,this.getClassNames(a).join(" "),a.getContent())};goog.ui.ControlRenderer.prototype.getContentElement=function(a){return a};
 goog.ui.ControlRenderer.prototype.enableClassName=function(a,b,c){if(a=a.getElement?a.getElement():a){var d=[b];goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("7")&&(d=this.getAppliedCombinedClassNames_(goog.dom.classlist.get(a),b),d.push(b));goog.dom.classlist.enableAll(a,d,c)}};goog.ui.ControlRenderer.prototype.enableExtraClassName=function(a,b,c){this.enableClassName(a,b,c)};goog.ui.ControlRenderer.prototype.canDecorate=function(a){return!0};
-goog.ui.ControlRenderer.prototype.decorate=function(a,b){b.id&&a.setId(b.id);var c=this.getContentElement(b);c&&c.firstChild?a.setContentInternal(c.firstChild.nextSibling?goog.array.clone(c.childNodes):c.firstChild):a.setContentInternal(null);var d=0,f=this.getCssClass(),g=this.getStructuralCssClass(),h=!1,k=!1,l=!1,m=goog.array.toArray(goog.dom.classlist.get(b));goog.array.forEach(m,function(a){h||a!=f?k||a!=g?d|=this.getStateFromClass(a):k=!0:(h=!0,g==f&&(k=!0));this.getStateFromClass(a)==goog.ui.Component.State.DISABLED&&
-(goog.asserts.assertElement(c),goog.dom.isFocusableTabIndex(c)&&goog.dom.setFocusableTabIndex(c,!1))},this);a.setStateInternal(d);h||(m.push(f),g==f&&(k=!0));k||m.push(g);var r=a.getExtraClassNames();r&&m.push.apply(m,r);if(goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("7")){var n=this.getAppliedCombinedClassNames_(m);0<n.length&&(m.push.apply(m,n),l=!0)}h&&k&&!r&&!l||goog.dom.classlist.set(b,m.join(" "));return b};
+goog.ui.ControlRenderer.prototype.decorate=function(a,b){b.id&&a.setId(b.id);var c=this.getContentElement(b);c&&c.firstChild?a.setContentInternal(c.firstChild.nextSibling?goog.array.clone(c.childNodes):c.firstChild):a.setContentInternal(null);var d=0,e=this.getCssClass(),f=this.getStructuralCssClass(),g=!1,h=!1,k=!1,l=goog.array.toArray(goog.dom.classlist.get(b));goog.array.forEach(l,function(a){g||a!=e?h||a!=f?d|=this.getStateFromClass(a):h=!0:(g=!0,f==e&&(h=!0));this.getStateFromClass(a)==goog.ui.Component.State.DISABLED&&
+(goog.asserts.assertElement(c),goog.dom.isFocusableTabIndex(c)&&goog.dom.setFocusableTabIndex(c,!1))},this);a.setStateInternal(d);g||(l.push(e),f==e&&(h=!0));h||l.push(f);var q=a.getExtraClassNames();q&&l.push.apply(l,q);if(goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("7")){var m=this.getAppliedCombinedClassNames_(l);0<m.length&&(l.push.apply(l,m),k=!0)}g&&h&&!q&&!k||goog.dom.classlist.set(b,l.join(" "));return b};
 goog.ui.ControlRenderer.prototype.initializeDom=function(a){a.isRightToLeft()&&this.setRightToLeft(a.getElement(),!0);a.isEnabled()&&this.setFocusable(a,a.isVisible())};goog.ui.ControlRenderer.prototype.setAriaRole=function(a,b){var c=b||this.getAriaRole();if(c){goog.asserts.assert(a,"The element passed as a first parameter cannot be null.");var d=goog.a11y.aria.getRole(a);c!=d&&goog.a11y.aria.setRole(a,c)}};
 goog.ui.ControlRenderer.prototype.setAriaStates=function(a,b){goog.asserts.assert(a);goog.asserts.assert(b);var c=a.getAriaLabel();goog.isDefAndNotNull(c)&&this.setAriaLabel(b,c);a.isVisible()||goog.a11y.aria.setState(b,goog.a11y.aria.State.HIDDEN,!a.isVisible());a.isEnabled()||this.updateAriaState(b,goog.ui.Component.State.DISABLED,!a.isEnabled());a.isSupportedState(goog.ui.Component.State.SELECTED)&&this.updateAriaState(b,goog.ui.Component.State.SELECTED,a.isSelected());a.isSupportedState(goog.ui.Component.State.CHECKED)&&
 this.updateAriaState(b,goog.ui.Component.State.CHECKED,a.isChecked());a.isSupportedState(goog.ui.Component.State.OPENED)&&this.updateAriaState(b,goog.ui.Component.State.OPENED,a.isOpen())};goog.ui.ControlRenderer.prototype.setAriaLabel=function(a,b){goog.a11y.aria.setLabel(a,b)};goog.ui.ControlRenderer.prototype.setAllowTextSelection=function(a,b){goog.style.setUnselectable(a,!b,!goog.userAgent.IE&&!goog.userAgent.OPERA)};
 goog.ui.ControlRenderer.prototype.setRightToLeft=function(a,b){this.enableClassName(a,this.getStructuralCssClass()+"-rtl",b)};goog.ui.ControlRenderer.prototype.isFocusable=function(a){var b;return a.isSupportedState(goog.ui.Component.State.FOCUSED)&&(b=a.getKeyEventTarget())?goog.dom.isFocusableTabIndex(b):!1};
 goog.ui.ControlRenderer.prototype.setFocusable=function(a,b){var c;if(a.isSupportedState(goog.ui.Component.State.FOCUSED)&&(c=a.getKeyEventTarget())){if(!b&&a.isFocused()){try{c.blur()}catch(d){}a.isFocused()&&a.handleBlur(null)}goog.dom.isFocusableTabIndex(c)!=b&&goog.dom.setFocusableTabIndex(c,b)}};goog.ui.ControlRenderer.prototype.setVisible=function(a,b){goog.style.setElementShown(a,b);a&&goog.a11y.aria.setState(a,goog.a11y.aria.State.HIDDEN,!b)};
-goog.ui.ControlRenderer.prototype.setState=function(a,b,c){var d=a.getElement();if(d){var f=this.getClassForState(b);f&&this.enableClassName(a,f,c);this.updateAriaState(d,b,c)}};
+goog.ui.ControlRenderer.prototype.setState=function(a,b,c){var d=a.getElement();if(d){var e=this.getClassForState(b);e&&this.enableClassName(a,e,c);this.updateAriaState(d,b,c)}};
 goog.ui.ControlRenderer.prototype.updateAriaState=function(a,b,c){goog.ui.ControlRenderer.ariaAttributeMap_||(goog.ui.ControlRenderer.ariaAttributeMap_=goog.object.create(goog.ui.Component.State.DISABLED,goog.a11y.aria.State.DISABLED,goog.ui.Component.State.SELECTED,goog.a11y.aria.State.SELECTED,goog.ui.Component.State.CHECKED,goog.a11y.aria.State.CHECKED,goog.ui.Component.State.OPENED,goog.a11y.aria.State.EXPANDED));goog.asserts.assert(a,"The element passed as a first parameter cannot be null.");
 (b=goog.ui.ControlRenderer.getAriaStateForAriaRole_(a,goog.ui.ControlRenderer.ariaAttributeMap_[b]))&&goog.a11y.aria.setState(a,b,c)};goog.ui.ControlRenderer.getAriaStateForAriaRole_=function(a,b){var c=goog.a11y.aria.getRole(a);if(!c)return b;c=goog.ui.ControlRenderer.TOGGLE_ARIA_STATE_MAP_[c]||b;return goog.ui.ControlRenderer.isAriaState_(b)?c:b};goog.ui.ControlRenderer.isAriaState_=function(a){return a==goog.a11y.aria.State.CHECKED||a==goog.a11y.aria.State.SELECTED};
 goog.ui.ControlRenderer.prototype.setContent=function(a,b){var c=this.getContentElement(a);if(c&&(goog.dom.removeChildren(c),b))if(goog.isString(b))goog.dom.setTextContent(c,b);else{var d=function(a){if(a){var b=goog.dom.getOwnerDocument(c);c.appendChild(goog.isString(a)?b.createTextNode(a):a)}};goog.isArray(b)?goog.array.forEach(b,d):!goog.isArrayLike(b)||"nodeType"in b?d(b):goog.array.forEach(goog.array.clone(b),d)}};goog.ui.ControlRenderer.prototype.getKeyEventTarget=function(a){return a.getElement()};
@@ -570,7 +570,7 @@ goog.ui.Control.prototype.handleKeyEventInternal=function(a){return a.keyCode==g
 goog.ui.Control.IeMouseEventSequenceSimulator_=function(a){goog.Disposable.call(this);this.control_=a;this.clickExpected_=!1;this.handler_=new goog.events.EventHandler(this);this.registerDisposable(this.handler_);a=this.control_.getElementStrict();this.handler_.listen(a,goog.events.EventType.MOUSEDOWN,this.handleMouseDown_).listen(a,goog.events.EventType.MOUSEUP,this.handleMouseUp_).listen(a,goog.events.EventType.CLICK,this.handleClick_)};
 goog.inherits(goog.ui.Control.IeMouseEventSequenceSimulator_,goog.Disposable);goog.ui.Control.IeMouseEventSequenceSimulator_.SYNTHETIC_EVENTS_=!goog.userAgent.IE||goog.userAgent.isDocumentModeOrHigher(9);goog.ui.Control.IeMouseEventSequenceSimulator_.prototype.handleMouseDown_=function(){this.clickExpected_=!1};goog.ui.Control.IeMouseEventSequenceSimulator_.prototype.handleMouseUp_=function(){this.clickExpected_=!0};
 goog.ui.Control.IeMouseEventSequenceSimulator_.makeLeftMouseEvent_=function(a,b){if(!goog.ui.Control.IeMouseEventSequenceSimulator_.SYNTHETIC_EVENTS_)return a.button=goog.events.BrowserEvent.MouseButton.LEFT,a.type=b,a;var c=document.createEvent("MouseEvents");c.initMouseEvent(b,a.bubbles,a.cancelable,a.view||null,a.detail,a.screenX,a.screenY,a.clientX,a.clientY,a.ctrlKey,a.altKey,a.shiftKey,a.metaKey,goog.events.BrowserEvent.MouseButton.LEFT,a.relatedTarget||null);return c};
-goog.ui.Control.IeMouseEventSequenceSimulator_.prototype.handleClick_=function(a){if(this.clickExpected_)this.clickExpected_=!1;else{var b=a.getBrowserEvent(),c=b.button,d=b.type,f=goog.ui.Control.IeMouseEventSequenceSimulator_.makeLeftMouseEvent_(b,goog.events.EventType.MOUSEDOWN);this.control_.handleMouseDown(new goog.events.BrowserEvent(f,a.currentTarget));f=goog.ui.Control.IeMouseEventSequenceSimulator_.makeLeftMouseEvent_(b,goog.events.EventType.MOUSEUP);this.control_.handleMouseUp(new goog.events.BrowserEvent(f,
+goog.ui.Control.IeMouseEventSequenceSimulator_.prototype.handleClick_=function(a){if(this.clickExpected_)this.clickExpected_=!1;else{var b=a.getBrowserEvent(),c=b.button,d=b.type,e=goog.ui.Control.IeMouseEventSequenceSimulator_.makeLeftMouseEvent_(b,goog.events.EventType.MOUSEDOWN);this.control_.handleMouseDown(new goog.events.BrowserEvent(e,a.currentTarget));e=goog.ui.Control.IeMouseEventSequenceSimulator_.makeLeftMouseEvent_(b,goog.events.EventType.MOUSEUP);this.control_.handleMouseUp(new goog.events.BrowserEvent(e,
 a.currentTarget));goog.ui.Control.IeMouseEventSequenceSimulator_.SYNTHETIC_EVENTS_||(b.button=c,b.type=d)}};goog.ui.Control.IeMouseEventSequenceSimulator_.prototype.disposeInternal=function(){this.control_=null;goog.ui.Control.IeMouseEventSequenceSimulator_.superClass_.disposeInternal.call(this)};goog.ui.Container=function(a,b,c){goog.ui.Component.call(this,c);this.renderer_=b||goog.ui.ContainerRenderer.getInstance();this.orientation_=a||this.renderer_.getDefaultOrientation()};goog.inherits(goog.ui.Container,goog.ui.Component);goog.tagUnsealableClass(goog.ui.Container);goog.ui.Container.EventType={AFTER_SHOW:"aftershow",AFTER_HIDE:"afterhide"};goog.ui.Container.Orientation={HORIZONTAL:"horizontal",VERTICAL:"vertical"};goog.ui.Container.prototype.keyEventTarget_=null;
 goog.ui.Container.prototype.keyHandler_=null;goog.ui.Container.prototype.renderer_=null;goog.ui.Container.prototype.orientation_=null;goog.ui.Container.prototype.visible_=!0;goog.ui.Container.prototype.enabled_=!0;goog.ui.Container.prototype.focusable_=!0;goog.ui.Container.prototype.highlightedIndex_=-1;goog.ui.Container.prototype.openItem_=null;goog.ui.Container.prototype.mouseButtonPressed_=!1;goog.ui.Container.prototype.allowFocusableChildren_=!1;
 goog.ui.Container.prototype.openFollowsHighlight_=!0;goog.ui.Container.prototype.childElementIdMap_=null;goog.ui.Container.prototype.getKeyEventTarget=function(){return this.keyEventTarget_||this.renderer_.getKeyEventTarget(this)};
@@ -604,7 +604,7 @@ goog.ui.Container.prototype.isFocusable=function(){return this.focusable_};goog.
 goog.ui.Container.prototype.setFocusableChildrenAllowed=function(a){this.allowFocusableChildren_=a};goog.ui.Container.prototype.isOpenFollowsHighlight=function(){return this.openFollowsHighlight_};goog.ui.Container.prototype.setOpenFollowsHighlight=function(a){this.openFollowsHighlight_=a};goog.ui.Container.prototype.getHighlightedIndex=function(){return this.highlightedIndex_};
 goog.ui.Container.prototype.setHighlightedIndex=function(a){(a=this.getChildAt(a))?a.setHighlighted(!0):-1<this.highlightedIndex_&&this.getHighlighted().setHighlighted(!1)};goog.ui.Container.prototype.setHighlighted=function(a){this.setHighlightedIndex(this.indexOfChild(a))};goog.ui.Container.prototype.getHighlighted=function(){return this.getChildAt(this.highlightedIndex_)};
 goog.ui.Container.prototype.highlightFirst=function(){this.highlightHelper(function(a,b){return(a+1)%b},this.getChildCount()-1)};goog.ui.Container.prototype.highlightLast=function(){this.highlightHelper(function(a,b){a--;return 0>a?b-1:a},0)};goog.ui.Container.prototype.highlightNext=function(){this.highlightHelper(function(a,b){return(a+1)%b},this.highlightedIndex_)};goog.ui.Container.prototype.highlightPrevious=function(){this.highlightHelper(function(a,b){a--;return 0>a?b-1:a},this.highlightedIndex_)};
-goog.ui.Container.prototype.highlightHelper=function(a,b){for(var c=0>b?this.indexOfChild(this.openItem_):b,d=this.getChildCount(),c=a.call(this,c,d),f=0;f<=d;){var g=this.getChildAt(c);if(g&&this.canHighlightItem(g))return this.setHighlightedIndexFromKeyEvent(c),!0;f++;c=a.call(this,c,d)}return!1};goog.ui.Container.prototype.canHighlightItem=function(a){return a.isVisible()&&a.isEnabled()&&a.isSupportedState(goog.ui.Component.State.HOVER)};
+goog.ui.Container.prototype.highlightHelper=function(a,b){for(var c=0>b?this.indexOfChild(this.openItem_):b,d=this.getChildCount(),c=a.call(this,c,d),e=0;e<=d;){var f=this.getChildAt(c);if(f&&this.canHighlightItem(f))return this.setHighlightedIndexFromKeyEvent(c),!0;e++;c=a.call(this,c,d)}return!1};goog.ui.Container.prototype.canHighlightItem=function(a){return a.isVisible()&&a.isEnabled()&&a.isSupportedState(goog.ui.Component.State.HOVER)};
 goog.ui.Container.prototype.setHighlightedIndexFromKeyEvent=function(a){this.setHighlightedIndex(a)};goog.ui.Container.prototype.getOpenItem=function(){return this.openItem_};goog.ui.Container.prototype.isMouseButtonPressed=function(){return this.mouseButtonPressed_};goog.ui.Container.prototype.setMouseButtonPressed=function(a){this.mouseButtonPressed_=a};goog.ui.MenuHeaderRenderer=function(){goog.ui.ControlRenderer.call(this)};goog.inherits(goog.ui.MenuHeaderRenderer,goog.ui.ControlRenderer);goog.addSingletonGetter(goog.ui.MenuHeaderRenderer);goog.ui.MenuHeaderRenderer.CSS_CLASS="goog-menuheader";goog.ui.MenuHeaderRenderer.prototype.getCssClass=function(){return goog.ui.MenuHeaderRenderer.CSS_CLASS};goog.ui.MenuHeader=function(a,b,c){goog.ui.Control.call(this,a,c||goog.ui.MenuHeaderRenderer.getInstance(),b);this.setSupportedState(goog.ui.Component.State.DISABLED,!1);this.setSupportedState(goog.ui.Component.State.HOVER,!1);this.setSupportedState(goog.ui.Component.State.ACTIVE,!1);this.setSupportedState(goog.ui.Component.State.FOCUSED,!1);this.setStateInternal(goog.ui.Component.State.DISABLED)};goog.inherits(goog.ui.MenuHeader,goog.ui.Control);
 goog.ui.registry.setDecoratorByClassName(goog.ui.MenuHeaderRenderer.CSS_CLASS,function(){return new goog.ui.MenuHeader(null)});goog.ui.MenuItemRenderer=function(){goog.ui.ControlRenderer.call(this);this.classNameCache_=[]};goog.inherits(goog.ui.MenuItemRenderer,goog.ui.ControlRenderer);goog.addSingletonGetter(goog.ui.MenuItemRenderer);goog.ui.MenuItemRenderer.CSS_CLASS="goog-menuitem";goog.ui.MenuItemRenderer.CompositeCssClassIndex_={HOVER:0,CHECKBOX:1,CONTENT:2};
 goog.ui.MenuItemRenderer.prototype.getCompositeCssClass_=function(a){var b=this.classNameCache_[a];if(!b){switch(a){case goog.ui.MenuItemRenderer.CompositeCssClassIndex_.HOVER:b=this.getStructuralCssClass()+"-highlight";break;case goog.ui.MenuItemRenderer.CompositeCssClassIndex_.CHECKBOX:b=this.getStructuralCssClass()+"-checkbox";break;case goog.ui.MenuItemRenderer.CompositeCssClassIndex_.CONTENT:b=this.getStructuralCssClass()+"-content"}this.classNameCache_[a]=b}return b};
@@ -631,7 +631,7 @@ goog.ui.Menu.prototype.allowAutoFocus_=!0;goog.ui.Menu.prototype.allowHighlightD
 goog.ui.Menu.prototype.addItemAt=function(a,b){this.addChildAt(a,b,!0)};goog.ui.Menu.prototype.removeItem=function(a){(a=this.removeChild(a,!0))&&a.dispose()};goog.ui.Menu.prototype.removeItemAt=function(a){(a=this.removeChildAt(a,!0))&&a.dispose()};goog.ui.Menu.prototype.getItemAt=function(a){return this.getChildAt(a)};goog.ui.Menu.prototype.getItemCount=function(){return this.getChildCount()};goog.ui.Menu.prototype.getItems=function(){var a=[];this.forEachChild(function(b){a.push(b)});return a};
 goog.ui.Menu.prototype.setPosition=function(a,b){var c=this.isVisible();c||goog.style.setElementShown(this.getElement(),!0);goog.style.setPageOffset(this.getElement(),a,b);c||goog.style.setElementShown(this.getElement(),!1)};goog.ui.Menu.prototype.getPosition=function(){return this.isVisible()?goog.style.getPageOffset(this.getElement()):null};goog.ui.Menu.prototype.setAllowAutoFocus=function(a){(this.allowAutoFocus_=a)&&this.setFocusable(!0)};goog.ui.Menu.prototype.getAllowAutoFocus=function(){return this.allowAutoFocus_};
 goog.ui.Menu.prototype.setAllowHighlightDisabled=function(a){this.allowHighlightDisabled_=a};goog.ui.Menu.prototype.getAllowHighlightDisabled=function(){return this.allowHighlightDisabled_};goog.ui.Menu.prototype.setVisible=function(a,b,c){(b=goog.ui.Menu.superClass_.setVisible.call(this,a,b))&&a&&this.isInDocument()&&this.allowAutoFocus_&&this.getKeyEventTarget().focus();a&&c&&goog.isNumber(c.clientX)?this.openingCoords=new goog.math.Coordinate(c.clientX,c.clientY):this.openingCoords=null;return b};
-goog.ui.Menu.prototype.handleEnterItem=function(a){this.allowAutoFocus_&&this.getKeyEventTarget().focus();return goog.ui.Menu.superClass_.handleEnterItem.call(this,a)};goog.ui.Menu.prototype.highlightNextPrefix=function(a){var b=new RegExp("^"+goog.string.regExpEscape(a),"i");return this.highlightHelper(function(a,d){var f=0>a?0:a,g=!1;do{++a;a==d&&(a=0,g=!0);var h=this.getChildAt(a).getCaption();if(h&&h.match(b))return a}while(!g||a!=f);return this.getHighlightedIndex()},this.getHighlightedIndex())};
+goog.ui.Menu.prototype.handleEnterItem=function(a){this.allowAutoFocus_&&this.getKeyEventTarget().focus();return goog.ui.Menu.superClass_.handleEnterItem.call(this,a)};goog.ui.Menu.prototype.highlightNextPrefix=function(a){var b=new RegExp("^"+goog.string.regExpEscape(a),"i");return this.highlightHelper(function(a,d){var e=0>a?0:a,f=!1;do{++a;a==d&&(a=0,f=!0);var g=this.getChildAt(a).getCaption();if(g&&g.match(b))return a}while(!f||a!=e);return this.getHighlightedIndex()},this.getHighlightedIndex())};
 goog.ui.Menu.prototype.canHighlightItem=function(a){return(this.allowHighlightDisabled_||a.isEnabled())&&a.isVisible()&&a.isSupportedState(goog.ui.Component.State.HOVER)};goog.ui.Menu.prototype.decorateInternal=function(a){this.decorateContent(a);goog.ui.Menu.superClass_.decorateInternal.call(this,a)};
 goog.ui.Menu.prototype.handleKeyEventInternal=function(a){var b=goog.ui.Menu.superClass_.handleKeyEventInternal.call(this,a);b||this.forEachChild(function(c){!b&&c.getMnemonic&&c.getMnemonic()==a.keyCode&&(this.isEnabled()&&this.setHighlighted(c),b=c.handleKeyEvent(a))},this);return b};goog.ui.Menu.prototype.setHighlightedIndex=function(a){goog.ui.Menu.superClass_.setHighlightedIndex.call(this,a);(a=this.getChildAt(a))&&goog.style.scrollIntoContainerView(a.getElement(),this.getElement())};
 goog.ui.Menu.prototype.decorateContent=function(a){var b=this.getRenderer();a=this.getDomHelper().getElementsByTagNameAndClass(goog.dom.TagName.DIV,b.getCssClass()+"-content",a);for(var c=a.length,d=0;d<c;d++)b.decorateChildren(this,a[d])};goog.color={};
@@ -644,36 +644,36 @@ seashell:"#fff5ee",sienna:"#a0522d",silver:"#c0c0c0",skyblue:"#87ceeb",slateblue
 goog.color.isValidColor=function(a){var b=goog.color.prependHashIfNecessaryHelper(a);return!!(goog.color.isValidHexColor_(b)||goog.color.isValidRgbColor_(a).length||goog.color.names&&goog.color.names[a.toLowerCase()])};goog.color.parseRgb=function(a){var b=goog.color.isValidRgbColor_(a);if(!b.length)throw Error(a+" is not a valid RGB color");return b};goog.color.hexToRgbStyle=function(a){return goog.color.rgbStyle_(goog.color.hexToRgb(a))};goog.color.hexTripletRe_=/#(.)(.)(.)/;
 goog.color.normalizeHex=function(a){if(!goog.color.isValidHexColor_(a))throw Error("'"+a+"' is not a valid hex color");4==a.length&&(a=a.replace(goog.color.hexTripletRe_,"#$1$1$2$2$3$3"));return a.toLowerCase()};goog.color.hexToRgb=function(a){a=goog.color.normalizeHex(a);var b=parseInt(a.substr(1,2),16),c=parseInt(a.substr(3,2),16);a=parseInt(a.substr(5,2),16);return[b,c,a]};
 goog.color.rgbToHex=function(a,b,c){a=Number(a);b=Number(b);c=Number(c);if(a!=(a&255)||b!=(b&255)||c!=(c&255))throw Error('"('+a+","+b+","+c+'") is not a valid RGB color');a=goog.color.prependZeroIfNecessaryHelper(a.toString(16));b=goog.color.prependZeroIfNecessaryHelper(b.toString(16));c=goog.color.prependZeroIfNecessaryHelper(c.toString(16));return"#"+a+b+c};goog.color.rgbArrayToHex=function(a){return goog.color.rgbToHex(a[0],a[1],a[2])};
-goog.color.rgbToHsl=function(a,b,c){a/=255;b/=255;c/=255;var d=Math.max(a,b,c),f=Math.min(a,b,c),g=0,h=0,k=.5*(d+f);d!=f&&(d==a?g=60*(b-c)/(d-f):d==b?g=60*(c-a)/(d-f)+120:d==c&&(g=60*(a-b)/(d-f)+240),h=0<k&&.5>=k?(d-f)/(2*k):(d-f)/(2-2*k));return[Math.round(g+360)%360,h,k]};goog.color.rgbArrayToHsl=function(a){return goog.color.rgbToHsl(a[0],a[1],a[2])};goog.color.hueToRgb_=function(a,b,c){0>c?c+=1:1<c&&--c;return 1>6*c?a+6*(b-a)*c:1>2*c?b:2>3*c?a+(b-a)*(2/3-c)*6:a};
-goog.color.hslToRgb=function(a,b,c){var d=0,f=0,g=0;a/=360;if(0==b)d=f=g=255*c;else var h=g=0,h=.5>c?c*(1+b):c+b-b*c,g=2*c-h,d=255*goog.color.hueToRgb_(g,h,a+1/3),f=255*goog.color.hueToRgb_(g,h,a),g=255*goog.color.hueToRgb_(g,h,a-1/3);return[Math.round(d),Math.round(f),Math.round(g)]};goog.color.hslArrayToRgb=function(a){return goog.color.hslToRgb(a[0],a[1],a[2])};goog.color.validHexColorRe_=/^#(?:[0-9a-f]{3}){1,2}$/i;goog.color.isValidHexColor_=function(a){return goog.color.validHexColorRe_.test(a)};
+goog.color.rgbToHsl=function(a,b,c){a/=255;b/=255;c/=255;var d=Math.max(a,b,c),e=Math.min(a,b,c),f=0,g=0,h=.5*(d+e);d!=e&&(d==a?f=60*(b-c)/(d-e):d==b?f=60*(c-a)/(d-e)+120:d==c&&(f=60*(a-b)/(d-e)+240),g=0<h&&.5>=h?(d-e)/(2*h):(d-e)/(2-2*h));return[Math.round(f+360)%360,g,h]};goog.color.rgbArrayToHsl=function(a){return goog.color.rgbToHsl(a[0],a[1],a[2])};goog.color.hueToRgb_=function(a,b,c){0>c?c+=1:1<c&&--c;return 1>6*c?a+6*(b-a)*c:1>2*c?b:2>3*c?a+(b-a)*(2/3-c)*6:a};
+goog.color.hslToRgb=function(a,b,c){var d=0,e=0,f=0;a/=360;if(0==b)d=e=f=255*c;else var g=f=0,g=.5>c?c*(1+b):c+b-b*c,f=2*c-g,d=255*goog.color.hueToRgb_(f,g,a+1/3),e=255*goog.color.hueToRgb_(f,g,a),f=255*goog.color.hueToRgb_(f,g,a-1/3);return[Math.round(d),Math.round(e),Math.round(f)]};goog.color.hslArrayToRgb=function(a){return goog.color.hslToRgb(a[0],a[1],a[2])};goog.color.validHexColorRe_=/^#(?:[0-9a-f]{3}){1,2}$/i;goog.color.isValidHexColor_=function(a){return goog.color.validHexColorRe_.test(a)};
 goog.color.normalizedHexColorRe_=/^#[0-9a-f]{6}$/;goog.color.isNormalizedHexColor_=function(a){return goog.color.normalizedHexColorRe_.test(a)};goog.color.rgbColorRe_=/^(?:rgb)?\((0|[1-9]\d{0,2}),\s?(0|[1-9]\d{0,2}),\s?(0|[1-9]\d{0,2})\)$/i;goog.color.isValidRgbColor_=function(a){var b=a.match(goog.color.rgbColorRe_);if(b){a=Number(b[1]);var c=Number(b[2]),b=Number(b[3]);if(0<=a&&255>=a&&0<=c&&255>=c&&0<=b&&255>=b)return[a,c,b]}return[]};
 goog.color.prependZeroIfNecessaryHelper=function(a){return 1==a.length?"0"+a:a};goog.color.prependHashIfNecessaryHelper=function(a){return"#"==a.charAt(0)?a:"#"+a};goog.color.rgbStyle_=function(a){return"rgb("+a.join(",")+")"};
-goog.color.hsvToRgb=function(a,b,c){var d=0,f=0,g=0;if(0==b)g=f=d=c;else{var h=Math.floor(a/60),k=a/60-h;a=c*(1-b);var l=c*(1-b*k);b=c*(1-b*(1-k));switch(h){case 1:d=l;f=c;g=a;break;case 2:d=a;f=c;g=b;break;case 3:d=a;f=l;g=c;break;case 4:d=b;f=a;g=c;break;case 5:d=c;f=a;g=l;break;case 6:case 0:d=c,f=b,g=a}}return[Math.floor(d),Math.floor(f),Math.floor(g)]};
-goog.color.rgbToHsv=function(a,b,c){var d=Math.max(Math.max(a,b),c),f=Math.min(Math.min(a,b),c);if(f==d)f=a=0;else{var g=d-f,f=g/d;a=60*(a==d?(b-c)/g:b==d?2+(c-a)/g:4+(a-b)/g);0>a&&(a+=360);360<a&&(a-=360)}return[a,f,d]};goog.color.rgbArrayToHsv=function(a){return goog.color.rgbToHsv(a[0],a[1],a[2])};goog.color.hsvArrayToRgb=function(a){return goog.color.hsvToRgb(a[0],a[1],a[2])};goog.color.hexToHsl=function(a){a=goog.color.hexToRgb(a);return goog.color.rgbToHsl(a[0],a[1],a[2])};
+goog.color.hsvToRgb=function(a,b,c){var d=0,e=0,f=0;if(0==b)f=e=d=c;else{var g=Math.floor(a/60),h=a/60-g;a=c*(1-b);var k=c*(1-b*h);b=c*(1-b*(1-h));switch(g){case 1:d=k;e=c;f=a;break;case 2:d=a;e=c;f=b;break;case 3:d=a;e=k;f=c;break;case 4:d=b;e=a;f=c;break;case 5:d=c;e=a;f=k;break;case 6:case 0:d=c,e=b,f=a}}return[Math.floor(d),Math.floor(e),Math.floor(f)]};
+goog.color.rgbToHsv=function(a,b,c){var d=Math.max(Math.max(a,b),c),e=Math.min(Math.min(a,b),c);if(e==d)e=a=0;else{var f=d-e,e=f/d;a=60*(a==d?(b-c)/f:b==d?2+(c-a)/f:4+(a-b)/f);0>a&&(a+=360);360<a&&(a-=360)}return[a,e,d]};goog.color.rgbArrayToHsv=function(a){return goog.color.rgbToHsv(a[0],a[1],a[2])};goog.color.hsvArrayToRgb=function(a){return goog.color.hsvToRgb(a[0],a[1],a[2])};goog.color.hexToHsl=function(a){a=goog.color.hexToRgb(a);return goog.color.rgbToHsl(a[0],a[1],a[2])};
 goog.color.hslToHex=function(a,b,c){return goog.color.rgbArrayToHex(goog.color.hslToRgb(a,b,c))};goog.color.hslArrayToHex=function(a){return goog.color.rgbArrayToHex(goog.color.hslToRgb(a[0],a[1],a[2]))};goog.color.hexToHsv=function(a){return goog.color.rgbArrayToHsv(goog.color.hexToRgb(a))};goog.color.hsvToHex=function(a,b,c){return goog.color.rgbArrayToHex(goog.color.hsvToRgb(a,b,c))};goog.color.hsvArrayToHex=function(a){return goog.color.hsvToHex(a[0],a[1],a[2])};
 goog.color.hslDistance=function(a,b){var c,d;c=.5>=a[2]?a[1]*a[2]:a[1]*(1-a[2]);d=.5>=b[2]?b[1]*b[2]:b[1]*(1-b[2]);return(a[2]-b[2])*(a[2]-b[2])+c*c+d*d-2*c*d*Math.cos(2*(a[0]/360-b[0]/360)*Math.PI)};goog.color.blend=function(a,b,c){c=goog.math.clamp(c,0,1);return[Math.round(c*a[0]+(1-c)*b[0]),Math.round(c*a[1]+(1-c)*b[1]),Math.round(c*a[2]+(1-c)*b[2])]};goog.color.darken=function(a,b){return goog.color.blend([0,0,0],a,b)};goog.color.lighten=function(a,b){return goog.color.blend([255,255,255],a,b)};
 goog.color.highContrast=function(a,b){for(var c=[],d=0;d<b.length;d++)c.push({color:b[d],diff:goog.color.yiqBrightnessDiff_(b[d],a)+goog.color.colorDiff_(b[d],a)});c.sort(function(a,b){return b.diff-a.diff});return c[0].color};goog.color.yiqBrightness_=function(a){return Math.round((299*a[0]+587*a[1]+114*a[2])/1E3)};goog.color.yiqBrightnessDiff_=function(a,b){return Math.abs(goog.color.yiqBrightness_(a)-goog.color.yiqBrightness_(b))};
 goog.color.colorDiff_=function(a,b){return Math.abs(a[0]-b[0])+Math.abs(a[1]-b[1])+Math.abs(a[2]-b[2])};goog.iter={};goog.iter.StopIteration="StopIteration"in goog.global?goog.global.StopIteration:{message:"StopIteration",stack:""};goog.iter.Iterator=function(){};goog.iter.Iterator.prototype.next=function(){throw goog.iter.StopIteration;};goog.iter.Iterator.prototype.__iterator__=function(a){return this};
 goog.iter.toIterator=function(a){if(a instanceof goog.iter.Iterator)return a;if("function"==typeof a.__iterator__)return a.__iterator__(!1);if(goog.isArrayLike(a)){var b=0,c=new goog.iter.Iterator;c.next=function(){for(;;){if(b>=a.length)throw goog.iter.StopIteration;if(b in a)return a[b++];b++}};return c}throw Error("Not implemented");};
 goog.iter.forEach=function(a,b,c){if(goog.isArrayLike(a))try{goog.array.forEach(a,b,c)}catch(d){if(d!==goog.iter.StopIteration)throw d;}else{a=goog.iter.toIterator(a);try{for(;;)b.call(c,a.next(),void 0,a)}catch(d){if(d!==goog.iter.StopIteration)throw d;}}};goog.iter.filter=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;a.next=function(){for(;;){var a=d.next();if(b.call(c,a,void 0,d))return a}};return a};
-goog.iter.filterFalse=function(a,b,c){return goog.iter.filter(a,goog.functions.not(b),c)};goog.iter.range=function(a,b,c){var d=0,f=a,g=c||1;1<arguments.length&&(d=a,f=b);if(0==g)throw Error("Range step argument must not be zero");var h=new goog.iter.Iterator;h.next=function(){if(0<g&&d>=f||0>g&&d<=f)throw goog.iter.StopIteration;var a=d;d+=g;return a};return h};goog.iter.join=function(a,b){return goog.iter.toArray(a).join(b)};
-goog.iter.map=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;a.next=function(){var a=d.next();return b.call(c,a,void 0,d)};return a};goog.iter.reduce=function(a,b,c,d){var f=c;goog.iter.forEach(a,function(a){f=b.call(d,f,a)});return f};goog.iter.some=function(a,b,c){a=goog.iter.toIterator(a);try{for(;;)if(b.call(c,a.next(),void 0,a))return!0}catch(d){if(d!==goog.iter.StopIteration)throw d;}return!1};
+goog.iter.filterFalse=function(a,b,c){return goog.iter.filter(a,goog.functions.not(b),c)};goog.iter.range=function(a,b,c){var d=0,e=a,f=c||1;1<arguments.length&&(d=a,e=b);if(0==f)throw Error("Range step argument must not be zero");var g=new goog.iter.Iterator;g.next=function(){if(0<f&&d>=e||0>f&&d<=e)throw goog.iter.StopIteration;var a=d;d+=f;return a};return g};goog.iter.join=function(a,b){return goog.iter.toArray(a).join(b)};
+goog.iter.map=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;a.next=function(){var a=d.next();return b.call(c,a,void 0,d)};return a};goog.iter.reduce=function(a,b,c,d){var e=c;goog.iter.forEach(a,function(a){e=b.call(d,e,a)});return e};goog.iter.some=function(a,b,c){a=goog.iter.toIterator(a);try{for(;;)if(b.call(c,a.next(),void 0,a))return!0}catch(d){if(d!==goog.iter.StopIteration)throw d;}return!1};
 goog.iter.every=function(a,b,c){a=goog.iter.toIterator(a);try{for(;;)if(!b.call(c,a.next(),void 0,a))return!1}catch(d){if(d!==goog.iter.StopIteration)throw d;}return!0};goog.iter.chain=function(a){return goog.iter.chainFromIterable(arguments)};
-goog.iter.chainFromIterable=function(a){var b=goog.iter.toIterator(a);a=new goog.iter.Iterator;var c=null;a.next=function(){for(;;){if(null==c){var a=b.next();c=goog.iter.toIterator(a)}try{return c.next()}catch(f){if(f!==goog.iter.StopIteration)throw f;c=null}}};return a};goog.iter.dropWhile=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;var f=!0;a.next=function(){for(;;){var a=d.next();if(!f||!b.call(c,a,void 0,d))return f=!1,a}};return a};
+goog.iter.chainFromIterable=function(a){var b=goog.iter.toIterator(a);a=new goog.iter.Iterator;var c=null;a.next=function(){for(;;){if(null==c){var a=b.next();c=goog.iter.toIterator(a)}try{return c.next()}catch(e){if(e!==goog.iter.StopIteration)throw e;c=null}}};return a};goog.iter.dropWhile=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;var e=!0;a.next=function(){for(;;){var a=d.next();if(!e||!b.call(c,a,void 0,d))return e=!1,a}};return a};
 goog.iter.takeWhile=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;a.next=function(){var a=d.next();if(b.call(c,a,void 0,d))return a;throw goog.iter.StopIteration;};return a};goog.iter.toArray=function(a){if(goog.isArrayLike(a))return goog.array.toArray(a);a=goog.iter.toIterator(a);var b=[];goog.iter.forEach(a,function(a){b.push(a)});return b};
 goog.iter.equals=function(a,b,c){a=goog.iter.zipLongest({},a,b);var d=c||goog.array.defaultCompareEquality;return goog.iter.every(a,function(a){return d(a[0],a[1])})};goog.iter.nextOrValue=function(a,b){try{return goog.iter.toIterator(a).next()}catch(c){if(c!=goog.iter.StopIteration)throw c;return b}};
 goog.iter.product=function(a){if(goog.array.some(arguments,function(a){return!a.length})||!arguments.length)return new goog.iter.Iterator;var b=new goog.iter.Iterator,c=arguments,d=goog.array.repeat(0,c.length);b.next=function(){if(d){for(var a=goog.array.map(d,function(a,b){return c[b][a]}),b=d.length-1;0<=b;b--){goog.asserts.assert(d);if(d[b]<c[b].length-1){d[b]++;break}if(0==b){d=null;break}d[b]=0}return a}throw goog.iter.StopIteration;};return b};
-goog.iter.cycle=function(a){var b=goog.iter.toIterator(a),c=[],d=0;a=new goog.iter.Iterator;var f=!1;a.next=function(){var a=null;if(!f)try{return a=b.next(),c.push(a),a}catch(h){if(h!=goog.iter.StopIteration||goog.array.isEmpty(c))throw h;f=!0}a=c[d];d=(d+1)%c.length;return a};return a};goog.iter.count=function(a,b){var c=a||0,d=goog.isDef(b)?b:1,f=new goog.iter.Iterator;f.next=function(){var a=c;c+=d;return a};return f};
+goog.iter.cycle=function(a){var b=goog.iter.toIterator(a),c=[],d=0;a=new goog.iter.Iterator;var e=!1;a.next=function(){var a=null;if(!e)try{return a=b.next(),c.push(a),a}catch(g){if(g!=goog.iter.StopIteration||goog.array.isEmpty(c))throw g;e=!0}a=c[d];d=(d+1)%c.length;return a};return a};goog.iter.count=function(a,b){var c=a||0,d=goog.isDef(b)?b:1,e=new goog.iter.Iterator;e.next=function(){var a=c;c+=d;return a};return e};
 goog.iter.repeat=function(a){var b=new goog.iter.Iterator;b.next=goog.functions.constant(a);return b};goog.iter.accumulate=function(a){var b=goog.iter.toIterator(a),c=0;a=new goog.iter.Iterator;a.next=function(){return c+=b.next()};return a};goog.iter.zip=function(a){var b=arguments,c=new goog.iter.Iterator;if(0<b.length){var d=goog.array.map(b,goog.iter.toIterator);c.next=function(){return goog.array.map(d,function(a){return a.next()})}}return c};
-goog.iter.zipLongest=function(a,b){var c=goog.array.slice(arguments,1),d=new goog.iter.Iterator;if(0<c.length){var f=goog.array.map(c,goog.iter.toIterator);d.next=function(){var b=!1,c=goog.array.map(f,function(c){var d;try{d=c.next(),b=!0}catch(f){if(f!==goog.iter.StopIteration)throw f;d=a}return d});if(!b)throw goog.iter.StopIteration;return c}}return d};goog.iter.compress=function(a,b){var c=goog.iter.toIterator(b);return goog.iter.filter(a,function(){return!!c.next()})};
+goog.iter.zipLongest=function(a,b){var c=goog.array.slice(arguments,1),d=new goog.iter.Iterator;if(0<c.length){var e=goog.array.map(c,goog.iter.toIterator);d.next=function(){var b=!1,c=goog.array.map(e,function(c){var d;try{d=c.next(),b=!0}catch(e){if(e!==goog.iter.StopIteration)throw e;d=a}return d});if(!b)throw goog.iter.StopIteration;return c}}return d};goog.iter.compress=function(a,b){var c=goog.iter.toIterator(b);return goog.iter.filter(a,function(){return!!c.next()})};
 goog.iter.GroupByIterator_=function(a,b){this.iterator=goog.iter.toIterator(a);this.keyFunc=b||goog.functions.identity};goog.inherits(goog.iter.GroupByIterator_,goog.iter.Iterator);goog.iter.GroupByIterator_.prototype.next=function(){for(;this.currentKey==this.targetKey;)this.currentValue=this.iterator.next(),this.currentKey=this.keyFunc(this.currentValue);this.targetKey=this.currentKey;return[this.currentKey,this.groupItems_(this.targetKey)]};
 goog.iter.GroupByIterator_.prototype.groupItems_=function(a){for(var b=[];this.currentKey==a;){b.push(this.currentValue);try{this.currentValue=this.iterator.next()}catch(c){if(c!==goog.iter.StopIteration)throw c;break}this.currentKey=this.keyFunc(this.currentValue)}return b};goog.iter.groupBy=function(a,b){return new goog.iter.GroupByIterator_(a,b)};
 goog.iter.starMap=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;a.next=function(){var a=goog.iter.toArray(d.next());return b.apply(c,goog.array.concat(a,void 0,d))};return a};
-goog.iter.tee=function(a,b){var c=goog.iter.toIterator(a),d=goog.isNumber(b)?b:2,f=goog.array.map(goog.array.range(d),function(){return[]}),g=function(){var a=c.next();goog.array.forEach(f,function(b){b.push(a)})};return goog.array.map(f,function(a){var b=new goog.iter.Iterator;b.next=function(){goog.array.isEmpty(a)&&g();goog.asserts.assert(!goog.array.isEmpty(a));return a.shift()};return b})};goog.iter.enumerate=function(a,b){return goog.iter.zip(goog.iter.count(b),a)};
-goog.iter.limit=function(a,b){goog.asserts.assert(goog.math.isInt(b)&&0<=b);var c=goog.iter.toIterator(a),d=new goog.iter.Iterator,f=b;d.next=function(){if(0<f--)return c.next();throw goog.iter.StopIteration;};return d};goog.iter.consume=function(a,b){goog.asserts.assert(goog.math.isInt(b)&&0<=b);for(var c=goog.iter.toIterator(a);0<b--;)goog.iter.nextOrValue(c,null);return c};
+goog.iter.tee=function(a,b){var c=goog.iter.toIterator(a),d=goog.isNumber(b)?b:2,e=goog.array.map(goog.array.range(d),function(){return[]}),f=function(){var a=c.next();goog.array.forEach(e,function(b){b.push(a)})};return goog.array.map(e,function(a){var b=new goog.iter.Iterator;b.next=function(){goog.array.isEmpty(a)&&f();goog.asserts.assert(!goog.array.isEmpty(a));return a.shift()};return b})};goog.iter.enumerate=function(a,b){return goog.iter.zip(goog.iter.count(b),a)};
+goog.iter.limit=function(a,b){goog.asserts.assert(goog.math.isInt(b)&&0<=b);var c=goog.iter.toIterator(a),d=new goog.iter.Iterator,e=b;d.next=function(){if(0<e--)return c.next();throw goog.iter.StopIteration;};return d};goog.iter.consume=function(a,b){goog.asserts.assert(goog.math.isInt(b)&&0<=b);for(var c=goog.iter.toIterator(a);0<b--;)goog.iter.nextOrValue(c,null);return c};
 goog.iter.slice=function(a,b,c){goog.asserts.assert(goog.math.isInt(b)&&0<=b);a=goog.iter.consume(a,b);goog.isNumber(c)&&(goog.asserts.assert(goog.math.isInt(c)&&c>=b),a=goog.iter.limit(a,c-b));return a};goog.iter.hasDuplicates_=function(a){var b=[];goog.array.removeDuplicates(a,b);return a.length!=b.length};goog.iter.permutations=function(a,b){var c=goog.iter.toArray(a),d=goog.isNumber(b)?b:c.length,c=goog.array.repeat(c,d),c=goog.iter.product.apply(void 0,c);return goog.iter.filter(c,function(a){return!goog.iter.hasDuplicates_(a)})};
-goog.iter.combinations=function(a,b){function c(a){return d[a]}var d=goog.iter.toArray(a),f=goog.iter.range(d.length),f=goog.iter.permutations(f,b),g=goog.iter.filter(f,function(a){return goog.array.isSorted(a)}),f=new goog.iter.Iterator;f.next=function(){return goog.array.map(g.next(),c)};return f};
-goog.iter.combinationsWithReplacement=function(a,b){function c(a){return d[a]}var d=goog.iter.toArray(a),f=goog.array.range(d.length),f=goog.array.repeat(f,b),f=goog.iter.product.apply(void 0,f),g=goog.iter.filter(f,function(a){return goog.array.isSorted(a)}),f=new goog.iter.Iterator;f.next=function(){return goog.array.map(g.next(),c)};return f};goog.dom.TagWalkType={START_TAG:1,OTHER:0,END_TAG:-1};goog.dom.TagIterator=function(a,b,c,d,f){this.reversed=!!b;this.node=null;this.tagType=goog.dom.TagWalkType.OTHER;this.started_=!1;this.constrained=!c;a&&this.setPosition(a,d);this.depth=void 0!=f?f:this.tagType||0;this.reversed&&(this.depth*=-1)};goog.inherits(goog.dom.TagIterator,goog.iter.Iterator);
+goog.iter.combinations=function(a,b){function c(a){return d[a]}var d=goog.iter.toArray(a),e=goog.iter.range(d.length),e=goog.iter.permutations(e,b),f=goog.iter.filter(e,function(a){return goog.array.isSorted(a)}),e=new goog.iter.Iterator;e.next=function(){return goog.array.map(f.next(),c)};return e};
+goog.iter.combinationsWithReplacement=function(a,b){function c(a){return d[a]}var d=goog.iter.toArray(a),e=goog.array.range(d.length),e=goog.array.repeat(e,b),e=goog.iter.product.apply(void 0,e),f=goog.iter.filter(e,function(a){return goog.array.isSorted(a)}),e=new goog.iter.Iterator;e.next=function(){return goog.array.map(f.next(),c)};return e};goog.dom.TagWalkType={START_TAG:1,OTHER:0,END_TAG:-1};goog.dom.TagIterator=function(a,b,c,d,e){this.reversed=!!b;this.node=null;this.tagType=goog.dom.TagWalkType.OTHER;this.started_=!1;this.constrained=!c;a&&this.setPosition(a,d);this.depth=void 0!=e?e:this.tagType||0;this.reversed&&(this.depth*=-1)};goog.inherits(goog.dom.TagIterator,goog.iter.Iterator);
 goog.dom.TagIterator.prototype.setPosition=function(a,b,c){if(this.node=a)goog.isNumber(b)?this.tagType=b:this.tagType=this.node.nodeType!=goog.dom.NodeType.ELEMENT?goog.dom.TagWalkType.OTHER:this.reversed?goog.dom.TagWalkType.END_TAG:goog.dom.TagWalkType.START_TAG;goog.isNumber(c)&&(this.depth=c)};goog.dom.TagIterator.prototype.copyFrom=function(a){this.node=a.node;this.tagType=a.tagType;this.depth=a.depth;this.reversed=a.reversed;this.constrained=a.constrained};
 goog.dom.TagIterator.prototype.clone=function(){return new goog.dom.TagIterator(this.node,this.reversed,!this.constrained,this.tagType,this.depth)};goog.dom.TagIterator.prototype.skipTag=function(){var a=this.reversed?goog.dom.TagWalkType.END_TAG:goog.dom.TagWalkType.START_TAG;this.tagType==a&&(this.tagType=-1*a,this.depth+=this.tagType*(this.reversed?-1:1))};
 goog.dom.TagIterator.prototype.restartTag=function(){var a=this.reversed?goog.dom.TagWalkType.START_TAG:goog.dom.TagWalkType.END_TAG;this.tagType==a&&(this.tagType=-1*a,this.depth+=this.tagType*(this.reversed?-1:1))};
@@ -681,12 +681,12 @@ goog.dom.TagIterator.prototype.next=function(){var a;if(this.started_){if(!this.
 -1:1)}else this.started_=!0;a=this.node;if(!this.node)throw goog.iter.StopIteration;return a};goog.dom.TagIterator.prototype.isStarted=function(){return this.started_};goog.dom.TagIterator.prototype.isStartTag=function(){return this.tagType==goog.dom.TagWalkType.START_TAG};goog.dom.TagIterator.prototype.isEndTag=function(){return this.tagType==goog.dom.TagWalkType.END_TAG};goog.dom.TagIterator.prototype.isNonElement=function(){return this.tagType==goog.dom.TagWalkType.OTHER};
 goog.dom.TagIterator.prototype.equals=function(a){return a.node==this.node&&(!this.node||a.tagType==this.tagType)};goog.dom.TagIterator.prototype.splice=function(a){var b=this.node;this.restartTag();this.reversed=!this.reversed;goog.dom.TagIterator.prototype.next.call(this);this.reversed=!this.reversed;for(var c=goog.isArrayLike(arguments[0])?arguments[0]:arguments,d=c.length-1;0<=d;d--)goog.dom.insertSiblingAfter(c[d],b);goog.dom.removeNode(b)};goog.dom.NodeIterator=function(a,b,c,d){goog.dom.TagIterator.call(this,a,b,c,null,d)};goog.inherits(goog.dom.NodeIterator,goog.dom.TagIterator);goog.dom.NodeIterator.prototype.next=function(){do goog.dom.NodeIterator.superClass_.next.call(this);while(this.isEndTag());return this.node};goog.ui.PaletteRenderer=function(){goog.ui.ControlRenderer.call(this)};goog.inherits(goog.ui.PaletteRenderer,goog.ui.ControlRenderer);goog.addSingletonGetter(goog.ui.PaletteRenderer);goog.ui.PaletteRenderer.cellId_=0;goog.ui.PaletteRenderer.CSS_CLASS="goog-palette";
 goog.ui.PaletteRenderer.prototype.createDom=function(a){var b=this.getClassNames(a);a=a.getDomHelper().createDom(goog.dom.TagName.DIV,b?b.join(" "):null,this.createGrid(a.getContent(),a.getSize(),a.getDomHelper()));goog.a11y.aria.setRole(a,goog.a11y.aria.Role.GRID);return a};
-goog.ui.PaletteRenderer.prototype.createGrid=function(a,b,c){for(var d=[],f=0,g=0;f<b.height;f++){for(var h=[],k=0;k<b.width;k++){var l=a&&a[g++];h.push(this.createCell(l,c))}d.push(this.createRow(h,c))}return this.createTable(d,c)};goog.ui.PaletteRenderer.prototype.createTable=function(a,b){var c=b.createDom(goog.dom.TagName.TABLE,this.getCssClass()+"-table",b.createDom(goog.dom.TagName.TBODY,this.getCssClass()+"-body",a));c.cellSpacing=0;c.cellPadding=0;return c};
+goog.ui.PaletteRenderer.prototype.createGrid=function(a,b,c){for(var d=[],e=0,f=0;e<b.height;e++){for(var g=[],h=0;h<b.width;h++){var k=a&&a[f++];g.push(this.createCell(k,c))}d.push(this.createRow(g,c))}return this.createTable(d,c)};goog.ui.PaletteRenderer.prototype.createTable=function(a,b){var c=b.createDom(goog.dom.TagName.TABLE,this.getCssClass()+"-table",b.createDom(goog.dom.TagName.TBODY,this.getCssClass()+"-body",a));c.cellSpacing=0;c.cellPadding=0;return c};
 goog.ui.PaletteRenderer.prototype.createRow=function(a,b){var c=b.createDom(goog.dom.TagName.TR,this.getCssClass()+"-row",a);goog.a11y.aria.setRole(c,goog.a11y.aria.Role.ROW);return c};
 goog.ui.PaletteRenderer.prototype.createCell=function(a,b){var c=b.createDom(goog.dom.TagName.TD,{"class":this.getCssClass()+"-cell",id:this.getCssClass()+"-cell-"+goog.ui.PaletteRenderer.cellId_++},a);goog.a11y.aria.setRole(c,goog.a11y.aria.Role.GRIDCELL);goog.a11y.aria.setState(c,goog.a11y.aria.State.SELECTED,!1);if(!goog.dom.getTextContent(c)&&!goog.a11y.aria.getLabel(c)){var d=this.findAriaLabelForCell_(c);d&&goog.a11y.aria.setLabel(c,d)}return c};
 goog.ui.PaletteRenderer.prototype.findAriaLabelForCell_=function(a){a=new goog.dom.NodeIterator(a);for(var b="",c;!b&&(c=goog.iter.nextOrValue(a,null));)c.nodeType==goog.dom.NodeType.ELEMENT&&(b=goog.a11y.aria.getLabel(c)||c.title);return b};goog.ui.PaletteRenderer.prototype.canDecorate=function(a){return!1};goog.ui.PaletteRenderer.prototype.decorate=function(a,b){return null};
-goog.ui.PaletteRenderer.prototype.setContent=function(a,b){if(a){var c=goog.dom.getElementsByTagNameAndClass(goog.dom.TagName.TBODY,this.getCssClass()+"-body",a)[0];if(c){var d=0;goog.array.forEach(c.rows,function(a){goog.array.forEach(a.cells,function(a){goog.dom.removeChildren(a);if(b){var c=b[d++];c&&goog.dom.appendChild(a,c)}})});if(d<b.length){for(var f=[],g=goog.dom.getDomHelper(a),h=c.rows[0].cells.length;d<b.length;){var k=b[d++];f.push(this.createCell(k,g));f.length==h&&(k=this.createRow(f,
-g),goog.dom.appendChild(c,k),f.length=0)}if(0<f.length){for(;f.length<h;)f.push(this.createCell("",g));k=this.createRow(f,g);goog.dom.appendChild(c,k)}}}goog.style.setUnselectable(a,!0,goog.userAgent.GECKO)}};goog.ui.PaletteRenderer.prototype.getContainingItem=function(a,b){for(var c=a.getElement();b&&b.nodeType==goog.dom.NodeType.ELEMENT&&b!=c;){if(b.tagName==goog.dom.TagName.TD&&goog.dom.classlist.contains(b,this.getCssClass()+"-cell"))return b.firstChild;b=b.parentNode}return null};
+goog.ui.PaletteRenderer.prototype.setContent=function(a,b){if(a){var c=goog.dom.getElementsByTagNameAndClass(goog.dom.TagName.TBODY,this.getCssClass()+"-body",a)[0];if(c){var d=0;goog.array.forEach(c.rows,function(a){goog.array.forEach(a.cells,function(a){goog.dom.removeChildren(a);if(b){var c=b[d++];c&&goog.dom.appendChild(a,c)}})});if(d<b.length){for(var e=[],f=goog.dom.getDomHelper(a),g=c.rows[0].cells.length;d<b.length;){var h=b[d++];e.push(this.createCell(h,f));e.length==g&&(h=this.createRow(e,
+f),goog.dom.appendChild(c,h),e.length=0)}if(0<e.length){for(;e.length<g;)e.push(this.createCell("",f));h=this.createRow(e,f);goog.dom.appendChild(c,h)}}}goog.style.setUnselectable(a,!0,goog.userAgent.GECKO)}};goog.ui.PaletteRenderer.prototype.getContainingItem=function(a,b){for(var c=a.getElement();b&&b.nodeType==goog.dom.NodeType.ELEMENT&&b!=c;){if(b.tagName==goog.dom.TagName.TD&&goog.dom.classlist.contains(b,this.getCssClass()+"-cell"))return b.firstChild;b=b.parentNode}return null};
 goog.ui.PaletteRenderer.prototype.highlightCell=function(a,b,c){b&&(b=this.getCellForItem(b),goog.asserts.assert(b),goog.dom.classlist.enable(b,this.getCssClass()+"-cell-hover",c),c?goog.a11y.aria.setState(a.getElementStrict(),goog.a11y.aria.State.ACTIVEDESCENDANT,b.id):b.id==goog.a11y.aria.getState(a.getElementStrict(),goog.a11y.aria.State.ACTIVEDESCENDANT)&&goog.a11y.aria.removeState(a.getElementStrict(),goog.a11y.aria.State.ACTIVEDESCENDANT))};
 goog.ui.PaletteRenderer.prototype.getCellForItem=function(a){return a?a.parentNode:null};goog.ui.PaletteRenderer.prototype.selectCell=function(a,b,c){b&&(a=b.parentNode,goog.dom.classlist.enable(a,this.getCssClass()+"-cell-selected",c),goog.a11y.aria.setState(a,goog.a11y.aria.State.SELECTED,c))};goog.ui.PaletteRenderer.prototype.getCssClass=function(){return goog.ui.PaletteRenderer.CSS_CLASS};goog.ui.SelectionModel=function(a){goog.events.EventTarget.call(this);this.items_=[];this.addItems(a)};goog.inherits(goog.ui.SelectionModel,goog.events.EventTarget);goog.tagUnsealableClass(goog.ui.SelectionModel);goog.ui.SelectionModel.prototype.selectedItem_=null;goog.ui.SelectionModel.prototype.selectionHandler_=null;goog.ui.SelectionModel.prototype.getSelectionHandler=function(){return this.selectionHandler_};
 goog.ui.SelectionModel.prototype.setSelectionHandler=function(a){this.selectionHandler_=a};goog.ui.SelectionModel.prototype.getItemCount=function(){return this.items_.length};goog.ui.SelectionModel.prototype.indexOfItem=function(a){return a?goog.array.indexOf(this.items_,a):-1};goog.ui.SelectionModel.prototype.getFirst=function(){return this.items_[0]};goog.ui.SelectionModel.prototype.getLast=function(){return this.items_[this.items_.length-1]};
@@ -728,37 +728,37 @@ goog.html.uncheckedconversions.safeUrlFromStringKnownToSatisfyTypeContract=funct
 goog.html.uncheckedconversions.trustedResourceUrlFromStringKnownToSatisfyTypeContract=function(a,b){goog.asserts.assertString(goog.string.Const.unwrap(a),"must provide justification");goog.asserts.assert(!goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(a)),"must provide non-empty justification");return goog.html.TrustedResourceUrl.createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(b)};goog.structs={};goog.structs.getCount=function(a){return a.getCount&&"function"==typeof a.getCount?a.getCount():goog.isArrayLike(a)||goog.isString(a)?a.length:goog.object.getCount(a)};goog.structs.getValues=function(a){if(a.getValues&&"function"==typeof a.getValues)return a.getValues();if(goog.isString(a))return a.split("");if(goog.isArrayLike(a)){for(var b=[],c=a.length,d=0;d<c;d++)b.push(a[d]);return b}return goog.object.getValues(a)};
 goog.structs.getKeys=function(a){if(a.getKeys&&"function"==typeof a.getKeys)return a.getKeys();if(!a.getValues||"function"!=typeof a.getValues){if(goog.isArrayLike(a)||goog.isString(a)){var b=[];a=a.length;for(var c=0;c<a;c++)b.push(c);return b}return goog.object.getKeys(a)}};
 goog.structs.contains=function(a,b){return a.contains&&"function"==typeof a.contains?a.contains(b):a.containsValue&&"function"==typeof a.containsValue?a.containsValue(b):goog.isArrayLike(a)||goog.isString(a)?goog.array.contains(a,b):goog.object.containsValue(a,b)};goog.structs.isEmpty=function(a){return a.isEmpty&&"function"==typeof a.isEmpty?a.isEmpty():goog.isArrayLike(a)||goog.isString(a)?goog.array.isEmpty(a):goog.object.isEmpty(a)};
-goog.structs.clear=function(a){a.clear&&"function"==typeof a.clear?a.clear():goog.isArrayLike(a)?goog.array.clear(a):goog.object.clear(a)};goog.structs.forEach=function(a,b,c){if(a.forEach&&"function"==typeof a.forEach)a.forEach(b,c);else if(goog.isArrayLike(a)||goog.isString(a))goog.array.forEach(a,b,c);else for(var d=goog.structs.getKeys(a),f=goog.structs.getValues(a),g=f.length,h=0;h<g;h++)b.call(c,f[h],d&&d[h],a)};
-goog.structs.filter=function(a,b,c){if("function"==typeof a.filter)return a.filter(b,c);if(goog.isArrayLike(a)||goog.isString(a))return goog.array.filter(a,b,c);var d,f=goog.structs.getKeys(a),g=goog.structs.getValues(a),h=g.length;if(f){d={};for(var k=0;k<h;k++)b.call(c,g[k],f[k],a)&&(d[f[k]]=g[k])}else for(d=[],k=0;k<h;k++)b.call(c,g[k],void 0,a)&&d.push(g[k]);return d};
-goog.structs.map=function(a,b,c){if("function"==typeof a.map)return a.map(b,c);if(goog.isArrayLike(a)||goog.isString(a))return goog.array.map(a,b,c);var d,f=goog.structs.getKeys(a),g=goog.structs.getValues(a),h=g.length;if(f){d={};for(var k=0;k<h;k++)d[f[k]]=b.call(c,g[k],f[k],a)}else for(d=[],k=0;k<h;k++)d[k]=b.call(c,g[k],void 0,a);return d};
-goog.structs.some=function(a,b,c){if("function"==typeof a.some)return a.some(b,c);if(goog.isArrayLike(a)||goog.isString(a))return goog.array.some(a,b,c);for(var d=goog.structs.getKeys(a),f=goog.structs.getValues(a),g=f.length,h=0;h<g;h++)if(b.call(c,f[h],d&&d[h],a))return!0;return!1};
-goog.structs.every=function(a,b,c){if("function"==typeof a.every)return a.every(b,c);if(goog.isArrayLike(a)||goog.isString(a))return goog.array.every(a,b,c);for(var d=goog.structs.getKeys(a),f=goog.structs.getValues(a),g=f.length,h=0;h<g;h++)if(!b.call(c,f[h],d&&d[h],a))return!1;return!0};goog.structs.Collection=function(){};goog.structs.Map=function(a,b){this.map_={};this.keys_=[];this.version_=this.count_=0;var c=arguments.length;if(1<c){if(c%2)throw Error("Uneven number of arguments");for(var d=0;d<c;d+=2)this.set(arguments[d],arguments[d+1])}else a&&this.addAll(a)};goog.structs.Map.prototype.getCount=function(){return this.count_};goog.structs.Map.prototype.getValues=function(){this.cleanupKeysArray_();for(var a=[],b=0;b<this.keys_.length;b++)a.push(this.map_[this.keys_[b]]);return a};
+goog.structs.clear=function(a){a.clear&&"function"==typeof a.clear?a.clear():goog.isArrayLike(a)?goog.array.clear(a):goog.object.clear(a)};goog.structs.forEach=function(a,b,c){if(a.forEach&&"function"==typeof a.forEach)a.forEach(b,c);else if(goog.isArrayLike(a)||goog.isString(a))goog.array.forEach(a,b,c);else for(var d=goog.structs.getKeys(a),e=goog.structs.getValues(a),f=e.length,g=0;g<f;g++)b.call(c,e[g],d&&d[g],a)};
+goog.structs.filter=function(a,b,c){if("function"==typeof a.filter)return a.filter(b,c);if(goog.isArrayLike(a)||goog.isString(a))return goog.array.filter(a,b,c);var d,e=goog.structs.getKeys(a),f=goog.structs.getValues(a),g=f.length;if(e){d={};for(var h=0;h<g;h++)b.call(c,f[h],e[h],a)&&(d[e[h]]=f[h])}else for(d=[],h=0;h<g;h++)b.call(c,f[h],void 0,a)&&d.push(f[h]);return d};
+goog.structs.map=function(a,b,c){if("function"==typeof a.map)return a.map(b,c);if(goog.isArrayLike(a)||goog.isString(a))return goog.array.map(a,b,c);var d,e=goog.structs.getKeys(a),f=goog.structs.getValues(a),g=f.length;if(e){d={};for(var h=0;h<g;h++)d[e[h]]=b.call(c,f[h],e[h],a)}else for(d=[],h=0;h<g;h++)d[h]=b.call(c,f[h],void 0,a);return d};
+goog.structs.some=function(a,b,c){if("function"==typeof a.some)return a.some(b,c);if(goog.isArrayLike(a)||goog.isString(a))return goog.array.some(a,b,c);for(var d=goog.structs.getKeys(a),e=goog.structs.getValues(a),f=e.length,g=0;g<f;g++)if(b.call(c,e[g],d&&d[g],a))return!0;return!1};
+goog.structs.every=function(a,b,c){if("function"==typeof a.every)return a.every(b,c);if(goog.isArrayLike(a)||goog.isString(a))return goog.array.every(a,b,c);for(var d=goog.structs.getKeys(a),e=goog.structs.getValues(a),f=e.length,g=0;g<f;g++)if(!b.call(c,e[g],d&&d[g],a))return!1;return!0};goog.structs.Collection=function(){};goog.structs.Map=function(a,b){this.map_={};this.keys_=[];this.version_=this.count_=0;var c=arguments.length;if(1<c){if(c%2)throw Error("Uneven number of arguments");for(var d=0;d<c;d+=2)this.set(arguments[d],arguments[d+1])}else a&&this.addAll(a)};goog.structs.Map.prototype.getCount=function(){return this.count_};goog.structs.Map.prototype.getValues=function(){this.cleanupKeysArray_();for(var a=[],b=0;b<this.keys_.length;b++)a.push(this.map_[this.keys_[b]]);return a};
 goog.structs.Map.prototype.getKeys=function(){this.cleanupKeysArray_();return this.keys_.concat()};goog.structs.Map.prototype.containsKey=function(a){return goog.structs.Map.hasKey_(this.map_,a)};goog.structs.Map.prototype.containsValue=function(a){for(var b=0;b<this.keys_.length;b++){var c=this.keys_[b];if(goog.structs.Map.hasKey_(this.map_,c)&&this.map_[c]==a)return!0}return!1};
-goog.structs.Map.prototype.equals=function(a,b){if(this===a)return!0;if(this.count_!=a.getCount())return!1;var c=b||goog.structs.Map.defaultEquals;this.cleanupKeysArray_();for(var d,f=0;d=this.keys_[f];f++)if(!c(this.get(d),a.get(d)))return!1;return!0};goog.structs.Map.defaultEquals=function(a,b){return a===b};goog.structs.Map.prototype.isEmpty=function(){return 0==this.count_};goog.structs.Map.prototype.clear=function(){this.map_={};this.version_=this.count_=this.keys_.length=0};
+goog.structs.Map.prototype.equals=function(a,b){if(this===a)return!0;if(this.count_!=a.getCount())return!1;var c=b||goog.structs.Map.defaultEquals;this.cleanupKeysArray_();for(var d,e=0;d=this.keys_[e];e++)if(!c(this.get(d),a.get(d)))return!1;return!0};goog.structs.Map.defaultEquals=function(a,b){return a===b};goog.structs.Map.prototype.isEmpty=function(){return 0==this.count_};goog.structs.Map.prototype.clear=function(){this.map_={};this.version_=this.count_=this.keys_.length=0};
 goog.structs.Map.prototype.remove=function(a){return goog.structs.Map.hasKey_(this.map_,a)?(delete this.map_[a],this.count_--,this.version_++,this.keys_.length>2*this.count_&&this.cleanupKeysArray_(),!0):!1};
 goog.structs.Map.prototype.cleanupKeysArray_=function(){if(this.count_!=this.keys_.length){for(var a=0,b=0;a<this.keys_.length;){var c=this.keys_[a];goog.structs.Map.hasKey_(this.map_,c)&&(this.keys_[b++]=c);a++}this.keys_.length=b}if(this.count_!=this.keys_.length){for(var d={},b=a=0;a<this.keys_.length;)c=this.keys_[a],goog.structs.Map.hasKey_(d,c)||(this.keys_[b++]=c,d[c]=1),a++;this.keys_.length=b}};
 goog.structs.Map.prototype.get=function(a,b){return goog.structs.Map.hasKey_(this.map_,a)?this.map_[a]:b};goog.structs.Map.prototype.set=function(a,b){goog.structs.Map.hasKey_(this.map_,a)||(this.count_++,this.keys_.push(a),this.version_++);this.map_[a]=b};goog.structs.Map.prototype.addAll=function(a){var b;a instanceof goog.structs.Map?(b=a.getKeys(),a=a.getValues()):(b=goog.object.getKeys(a),a=goog.object.getValues(a));for(var c=0;c<b.length;c++)this.set(b[c],a[c])};
-goog.structs.Map.prototype.forEach=function(a,b){for(var c=this.getKeys(),d=0;d<c.length;d++){var f=c[d],g=this.get(f);a.call(b,g,f,this)}};goog.structs.Map.prototype.clone=function(){return new goog.structs.Map(this)};goog.structs.Map.prototype.transpose=function(){for(var a=new goog.structs.Map,b=0;b<this.keys_.length;b++){var c=this.keys_[b];a.set(this.map_[c],c)}return a};
+goog.structs.Map.prototype.forEach=function(a,b){for(var c=this.getKeys(),d=0;d<c.length;d++){var e=c[d],f=this.get(e);a.call(b,f,e,this)}};goog.structs.Map.prototype.clone=function(){return new goog.structs.Map(this)};goog.structs.Map.prototype.transpose=function(){for(var a=new goog.structs.Map,b=0;b<this.keys_.length;b++){var c=this.keys_[b];a.set(this.map_[c],c)}return a};
 goog.structs.Map.prototype.toObject=function(){this.cleanupKeysArray_();for(var a={},b=0;b<this.keys_.length;b++){var c=this.keys_[b];a[c]=this.map_[c]}return a};goog.structs.Map.prototype.getKeyIterator=function(){return this.__iterator__(!0)};goog.structs.Map.prototype.getValueIterator=function(){return this.__iterator__(!1)};
-goog.structs.Map.prototype.__iterator__=function(a){this.cleanupKeysArray_();var b=0,c=this.version_,d=this,f=new goog.iter.Iterator;f.next=function(){if(c!=d.version_)throw Error("The map has changed since the iterator was created");if(b>=d.keys_.length)throw goog.iter.StopIteration;var f=d.keys_[b++];return a?f:d.map_[f]};return f};goog.structs.Map.hasKey_=function(a,b){return Object.prototype.hasOwnProperty.call(a,b)};goog.structs.Set=function(a){this.map_=new goog.structs.Map;a&&this.addAll(a)};goog.structs.Set.getKey_=function(a){var b=typeof a;return"object"==b&&a||"function"==b?"o"+goog.getUid(a):b.substr(0,1)+a};goog.structs.Set.prototype.getCount=function(){return this.map_.getCount()};goog.structs.Set.prototype.add=function(a){this.map_.set(goog.structs.Set.getKey_(a),a)};goog.structs.Set.prototype.addAll=function(a){a=goog.structs.getValues(a);for(var b=a.length,c=0;c<b;c++)this.add(a[c])};
+goog.structs.Map.prototype.__iterator__=function(a){this.cleanupKeysArray_();var b=0,c=this.version_,d=this,e=new goog.iter.Iterator;e.next=function(){if(c!=d.version_)throw Error("The map has changed since the iterator was created");if(b>=d.keys_.length)throw goog.iter.StopIteration;var e=d.keys_[b++];return a?e:d.map_[e]};return e};goog.structs.Map.hasKey_=function(a,b){return Object.prototype.hasOwnProperty.call(a,b)};goog.structs.Set=function(a){this.map_=new goog.structs.Map;a&&this.addAll(a)};goog.structs.Set.getKey_=function(a){var b=typeof a;return"object"==b&&a||"function"==b?"o"+goog.getUid(a):b.substr(0,1)+a};goog.structs.Set.prototype.getCount=function(){return this.map_.getCount()};goog.structs.Set.prototype.add=function(a){this.map_.set(goog.structs.Set.getKey_(a),a)};goog.structs.Set.prototype.addAll=function(a){a=goog.structs.getValues(a);for(var b=a.length,c=0;c<b;c++)this.add(a[c])};
 goog.structs.Set.prototype.removeAll=function(a){a=goog.structs.getValues(a);for(var b=a.length,c=0;c<b;c++)this.remove(a[c])};goog.structs.Set.prototype.remove=function(a){return this.map_.remove(goog.structs.Set.getKey_(a))};goog.structs.Set.prototype.clear=function(){this.map_.clear()};goog.structs.Set.prototype.isEmpty=function(){return this.map_.isEmpty()};goog.structs.Set.prototype.contains=function(a){return this.map_.containsKey(goog.structs.Set.getKey_(a))};
 goog.structs.Set.prototype.containsAll=function(a){return goog.structs.every(a,this.contains,this)};goog.structs.Set.prototype.intersection=function(a){var b=new goog.structs.Set;a=goog.structs.getValues(a);for(var c=0;c<a.length;c++){var d=a[c];this.contains(d)&&b.add(d)}return b};goog.structs.Set.prototype.difference=function(a){var b=this.clone();b.removeAll(a);return b};goog.structs.Set.prototype.getValues=function(){return this.map_.getValues()};goog.structs.Set.prototype.clone=function(){return new goog.structs.Set(this)};
-goog.structs.Set.prototype.equals=function(a){return this.getCount()==goog.structs.getCount(a)&&this.isSubsetOf(a)};goog.structs.Set.prototype.isSubsetOf=function(a){var b=goog.structs.getCount(a);if(this.getCount()>b)return!1;!(a instanceof goog.structs.Set)&&5<b&&(a=new goog.structs.Set(a));return goog.structs.every(this,function(b){return goog.structs.contains(a,b)})};goog.structs.Set.prototype.__iterator__=function(a){return this.map_.__iterator__(!1)};goog.debug.LOGGING_ENABLED=goog.DEBUG;goog.debug.FORCE_SLOPPY_STACKS=!1;goog.debug.catchErrors=function(a,b,c){c=c||goog.global;var d=c.onerror,f=!!b;goog.userAgent.WEBKIT&&!goog.userAgent.isVersionOrHigher("535.3")&&(f=!f);c.onerror=function(b,c,k,l,m){d&&d(b,c,k,l,m);a({message:b,fileName:c,line:k,col:l,error:m});return f}};
-goog.debug.expose=function(a,b){if("undefined"==typeof a)return"undefined";if(null==a)return"NULL";var c=[],d;for(d in a)if(b||!goog.isFunction(a[d])){var f=d+" = ";try{f+=a[d]}catch(g){f+="*** "+g+" ***"}c.push(f)}return c.join("\n")};
-goog.debug.deepExpose=function(a,b){var c=[],d=function(a,g,h){var k=g+"  ";h=new goog.structs.Set(h);try{if(goog.isDef(a))if(goog.isNull(a))c.push("NULL");else if(goog.isString(a))c.push('"'+a.replace(/\n/g,"\n"+g)+'"');else if(goog.isFunction(a))c.push(String(a).replace(/\n/g,"\n"+g));else if(goog.isObject(a))if(h.contains(a))c.push("*** reference loop detected ***");else{h.add(a);c.push("{");for(var l in a)if(b||!goog.isFunction(a[l]))c.push("\n"),c.push(k),c.push(l+" = "),d(a[l],k,h);c.push("\n"+
-g+"}")}else c.push(a);else c.push("undefined")}catch(m){c.push("*** "+m+" ***")}};d(a,"",new goog.structs.Set);return c.join("")};goog.debug.exposeArray=function(a){for(var b=[],c=0;c<a.length;c++)goog.isArray(a[c])?b.push(goog.debug.exposeArray(a[c])):b.push(a[c]);return"[ "+b.join(", ")+" ]"};goog.debug.exposeException=function(a,b){var c=goog.debug.exposeExceptionAsHtml(a,b);return goog.html.SafeHtml.unwrap(c)};
+goog.structs.Set.prototype.equals=function(a){return this.getCount()==goog.structs.getCount(a)&&this.isSubsetOf(a)};goog.structs.Set.prototype.isSubsetOf=function(a){var b=goog.structs.getCount(a);if(this.getCount()>b)return!1;!(a instanceof goog.structs.Set)&&5<b&&(a=new goog.structs.Set(a));return goog.structs.every(this,function(b){return goog.structs.contains(a,b)})};goog.structs.Set.prototype.__iterator__=function(a){return this.map_.__iterator__(!1)};goog.debug.LOGGING_ENABLED=goog.DEBUG;goog.debug.FORCE_SLOPPY_STACKS=!1;goog.debug.catchErrors=function(a,b,c){c=c||goog.global;var d=c.onerror,e=!!b;goog.userAgent.WEBKIT&&!goog.userAgent.isVersionOrHigher("535.3")&&(e=!e);c.onerror=function(b,c,h,k,l){d&&d(b,c,h,k,l);a({message:b,fileName:c,line:h,col:k,error:l});return e}};
+goog.debug.expose=function(a,b){if("undefined"==typeof a)return"undefined";if(null==a)return"NULL";var c=[],d;for(d in a)if(b||!goog.isFunction(a[d])){var e=d+" = ";try{e+=a[d]}catch(f){e+="*** "+f+" ***"}c.push(e)}return c.join("\n")};
+goog.debug.deepExpose=function(a,b){var c=[],d=function(a,f,g){var h=f+"  ";g=new goog.structs.Set(g);try{if(goog.isDef(a))if(goog.isNull(a))c.push("NULL");else if(goog.isString(a))c.push('"'+a.replace(/\n/g,"\n"+f)+'"');else if(goog.isFunction(a))c.push(String(a).replace(/\n/g,"\n"+f));else if(goog.isObject(a))if(g.contains(a))c.push("*** reference loop detected ***");else{g.add(a);c.push("{");for(var k in a)if(b||!goog.isFunction(a[k]))c.push("\n"),c.push(h),c.push(k+" = "),d(a[k],h,g);c.push("\n"+
+f+"}")}else c.push(a);else c.push("undefined")}catch(l){c.push("*** "+l+" ***")}};d(a,"",new goog.structs.Set);return c.join("")};goog.debug.exposeArray=function(a){for(var b=[],c=0;c<a.length;c++)goog.isArray(a[c])?b.push(goog.debug.exposeArray(a[c])):b.push(a[c]);return"[ "+b.join(", ")+" ]"};goog.debug.exposeException=function(a,b){var c=goog.debug.exposeExceptionAsHtml(a,b);return goog.html.SafeHtml.unwrap(c)};
 goog.debug.exposeExceptionAsHtml=function(a,b){try{var c=goog.debug.normalizeErrorObject(a),d=goog.debug.createViewSourceUrl_(c.fileName);return goog.html.SafeHtml.concat(goog.html.SafeHtml.htmlEscapePreservingNewlinesAndSpaces("Message: "+c.message+"\nUrl: "),goog.html.SafeHtml.create("a",{href:d,target:"_new"},c.fileName),goog.html.SafeHtml.htmlEscapePreservingNewlinesAndSpaces("\nLine: "+c.lineNumber+"\n\nBrowser stack:\n"+c.stack+"-> [end]\n\nJS stack traversal:\n"+goog.debug.getStacktrace(b)+
-"-> "))}catch(f){return goog.html.SafeHtml.htmlEscapePreservingNewlinesAndSpaces("Exception trying to expose exception! You win, we lose. "+f)}};
+"-> "))}catch(e){return goog.html.SafeHtml.htmlEscapePreservingNewlinesAndSpaces("Exception trying to expose exception! You win, we lose. "+e)}};
 goog.debug.createViewSourceUrl_=function(a){goog.isDefAndNotNull(a)||(a="");if(!/^https?:\/\//i.test(a))return goog.html.SafeUrl.fromConstant(goog.string.Const.from("sanitizedviewsrc"));a=goog.html.SafeUrl.sanitize(a);return goog.html.uncheckedconversions.safeUrlFromStringKnownToSatisfyTypeContract(goog.string.Const.from("view-source scheme plus HTTP/HTTPS URL"),"view-source:"+goog.html.SafeUrl.unwrap(a))};
-goog.debug.normalizeErrorObject=function(a){var b=goog.getObjectByName("window.location.href");if(goog.isString(a))return{message:a,name:"Unknown error",lineNumber:"Not available",fileName:b,stack:"Not available"};var c,d,f=!1;try{c=a.lineNumber||a.line||"Not available"}catch(g){c="Not available",f=!0}try{d=a.fileName||a.filename||a.sourceURL||goog.global.$googDebugFname||b}catch(g){d="Not available",f=!0}return!f&&a.lineNumber&&a.fileName&&a.stack&&a.message&&a.name?a:{message:a.message||"Not available",
+goog.debug.normalizeErrorObject=function(a){var b=goog.getObjectByName("window.location.href");if(goog.isString(a))return{message:a,name:"Unknown error",lineNumber:"Not available",fileName:b,stack:"Not available"};var c,d,e=!1;try{c=a.lineNumber||a.line||"Not available"}catch(f){c="Not available",e=!0}try{d=a.fileName||a.filename||a.sourceURL||goog.global.$googDebugFname||b}catch(f){d="Not available",e=!0}return!e&&a.lineNumber&&a.fileName&&a.stack&&a.message&&a.name?a:{message:a.message||"Not available",
 name:a.name||"UnknownError",lineNumber:c,fileName:d,stack:a.stack||"Not available"}};goog.debug.enhanceError=function(a,b){var c;"string"==typeof a?(c=Error(a),Error.captureStackTrace&&Error.captureStackTrace(c,goog.debug.enhanceError)):c=a;c.stack||(c.stack=goog.debug.getStacktrace(goog.debug.enhanceError));if(b){for(var d=0;c["message"+d];)++d;c["message"+d]=String(b)}return c};
-goog.debug.getStacktraceSimple=function(a){if(!goog.debug.FORCE_SLOPPY_STACKS){var b=goog.debug.getNativeStackTrace_(goog.debug.getStacktraceSimple);if(b)return b}for(var b=[],c=arguments.callee.caller,d=0;c&&(!a||d<a);){b.push(goog.debug.getFunctionName(c));b.push("()\n");try{c=c.caller}catch(f){b.push("[exception trying to get caller]\n");break}d++;if(d>=goog.debug.MAX_STACK_DEPTH){b.push("[...long stack...]");break}}a&&d>=a?b.push("[...reached max depth limit...]"):b.push("[end]");return b.join("")};
+goog.debug.getStacktraceSimple=function(a){if(!goog.debug.FORCE_SLOPPY_STACKS){var b=goog.debug.getNativeStackTrace_(goog.debug.getStacktraceSimple);if(b)return b}for(var b=[],c=arguments.callee.caller,d=0;c&&(!a||d<a);){b.push(goog.debug.getFunctionName(c));b.push("()\n");try{c=c.caller}catch(e){b.push("[exception trying to get caller]\n");break}d++;if(d>=goog.debug.MAX_STACK_DEPTH){b.push("[...long stack...]");break}}a&&d>=a?b.push("[...reached max depth limit...]"):b.push("[end]");return b.join("")};
 goog.debug.MAX_STACK_DEPTH=50;goog.debug.getNativeStackTrace_=function(a){var b=Error();if(Error.captureStackTrace)return Error.captureStackTrace(b,a),String(b.stack);try{throw b;}catch(c){b=c}return(a=b.stack)?String(a):null};goog.debug.getStacktrace=function(a){var b;goog.debug.FORCE_SLOPPY_STACKS||(b=goog.debug.getNativeStackTrace_(a||goog.debug.getStacktrace));b||(b=goog.debug.getStacktraceHelper_(a||arguments.callee.caller,[]));return b};
-goog.debug.getStacktraceHelper_=function(a,b){var c=[];if(goog.array.contains(b,a))c.push("[...circular reference...]");else if(a&&b.length<goog.debug.MAX_STACK_DEPTH){c.push(goog.debug.getFunctionName(a)+"(");for(var d=a.arguments,f=0;d&&f<d.length;f++){0<f&&c.push(", ");var g;g=d[f];switch(typeof g){case "object":g=g?"object":"null";break;case "string":break;case "number":g=String(g);break;case "boolean":g=g?"true":"false";break;case "function":g=(g=goog.debug.getFunctionName(g))?g:"[fn]";break;
-default:g=typeof g}40<g.length&&(g=g.substr(0,40)+"...");c.push(g)}b.push(a);c.push(")\n");try{c.push(goog.debug.getStacktraceHelper_(a.caller,b))}catch(h){c.push("[exception trying to get caller]\n")}}else a?c.push("[...long stack...]"):c.push("[end]");return c.join("")};goog.debug.setFunctionResolver=function(a){goog.debug.fnNameResolver_=a};
+goog.debug.getStacktraceHelper_=function(a,b){var c=[];if(goog.array.contains(b,a))c.push("[...circular reference...]");else if(a&&b.length<goog.debug.MAX_STACK_DEPTH){c.push(goog.debug.getFunctionName(a)+"(");for(var d=a.arguments,e=0;d&&e<d.length;e++){0<e&&c.push(", ");var f;f=d[e];switch(typeof f){case "object":f=f?"object":"null";break;case "string":break;case "number":f=String(f);break;case "boolean":f=f?"true":"false";break;case "function":f=(f=goog.debug.getFunctionName(f))?f:"[fn]";break;
+default:f=typeof f}40<f.length&&(f=f.substr(0,40)+"...");c.push(f)}b.push(a);c.push(")\n");try{c.push(goog.debug.getStacktraceHelper_(a.caller,b))}catch(g){c.push("[exception trying to get caller]\n")}}else a?c.push("[...long stack...]"):c.push("[end]");return c.join("")};goog.debug.setFunctionResolver=function(a){goog.debug.fnNameResolver_=a};
 goog.debug.getFunctionName=function(a){if(goog.debug.fnNameCache_[a])return goog.debug.fnNameCache_[a];if(goog.debug.fnNameResolver_){var b=goog.debug.fnNameResolver_(a);if(b)return goog.debug.fnNameCache_[a]=b}a=String(a);goog.debug.fnNameCache_[a]||(b=/function ([^\(]+)/.exec(a),goog.debug.fnNameCache_[a]=b?b[1]:"[Anonymous]");return goog.debug.fnNameCache_[a]};
-goog.debug.makeWhitespaceVisible=function(a){return a.replace(/ /g,"[_]").replace(/\f/g,"[f]").replace(/\n/g,"[n]\n").replace(/\r/g,"[r]").replace(/\t/g,"[t]")};goog.debug.runtimeType=function(a){return a instanceof Function?a.displayName||a.name||"unknown type name":a instanceof Object?a.constructor.displayName||a.constructor.name||Object.prototype.toString.call(a):null===a?"null":typeof a};goog.debug.fnNameCache_={};goog.debug.LogRecord=function(a,b,c,d,f){this.reset(a,b,c,d,f)};goog.debug.LogRecord.prototype.sequenceNumber_=0;goog.debug.LogRecord.prototype.exception_=null;goog.debug.LogRecord.ENABLE_SEQUENCE_NUMBERS=!0;goog.debug.LogRecord.nextSequenceNumber_=0;
-goog.debug.LogRecord.prototype.reset=function(a,b,c,d,f){goog.debug.LogRecord.ENABLE_SEQUENCE_NUMBERS&&(this.sequenceNumber_="number"==typeof f?f:goog.debug.LogRecord.nextSequenceNumber_++);this.time_=d||goog.now();this.level_=a;this.msg_=b;this.loggerName_=c;delete this.exception_};goog.debug.LogRecord.prototype.getLoggerName=function(){return this.loggerName_};goog.debug.LogRecord.prototype.getException=function(){return this.exception_};
+goog.debug.makeWhitespaceVisible=function(a){return a.replace(/ /g,"[_]").replace(/\f/g,"[f]").replace(/\n/g,"[n]\n").replace(/\r/g,"[r]").replace(/\t/g,"[t]")};goog.debug.runtimeType=function(a){return a instanceof Function?a.displayName||a.name||"unknown type name":a instanceof Object?a.constructor.displayName||a.constructor.name||Object.prototype.toString.call(a):null===a?"null":typeof a};goog.debug.fnNameCache_={};goog.debug.LogRecord=function(a,b,c,d,e){this.reset(a,b,c,d,e)};goog.debug.LogRecord.prototype.sequenceNumber_=0;goog.debug.LogRecord.prototype.exception_=null;goog.debug.LogRecord.ENABLE_SEQUENCE_NUMBERS=!0;goog.debug.LogRecord.nextSequenceNumber_=0;
+goog.debug.LogRecord.prototype.reset=function(a,b,c,d,e){goog.debug.LogRecord.ENABLE_SEQUENCE_NUMBERS&&(this.sequenceNumber_="number"==typeof e?e:goog.debug.LogRecord.nextSequenceNumber_++);this.time_=d||goog.now();this.level_=a;this.msg_=b;this.loggerName_=c;delete this.exception_};goog.debug.LogRecord.prototype.getLoggerName=function(){return this.loggerName_};goog.debug.LogRecord.prototype.getException=function(){return this.exception_};
 goog.debug.LogRecord.prototype.setException=function(a){this.exception_=a};goog.debug.LogRecord.prototype.setLoggerName=function(a){this.loggerName_=a};goog.debug.LogRecord.prototype.getLevel=function(){return this.level_};goog.debug.LogRecord.prototype.setLevel=function(a){this.level_=a};goog.debug.LogRecord.prototype.getMessage=function(){return this.msg_};goog.debug.LogRecord.prototype.setMessage=function(a){this.msg_=a};goog.debug.LogRecord.prototype.getMillis=function(){return this.time_};
 goog.debug.LogRecord.prototype.setMillis=function(a){this.time_=a};goog.debug.LogRecord.prototype.getSequenceNumber=function(){return this.sequenceNumber_};goog.debug.LogBuffer=function(){goog.asserts.assert(goog.debug.LogBuffer.isBufferingEnabled(),"Cannot use goog.debug.LogBuffer without defining goog.debug.LogBuffer.CAPACITY.");this.clear()};goog.debug.LogBuffer.getInstance=function(){goog.debug.LogBuffer.instance_||(goog.debug.LogBuffer.instance_=new goog.debug.LogBuffer);return goog.debug.LogBuffer.instance_};goog.debug.LogBuffer.CAPACITY=0;
 goog.debug.LogBuffer.prototype.addRecord=function(a,b,c){var d=(this.curIndex_+1)%goog.debug.LogBuffer.CAPACITY;this.curIndex_=d;if(this.isFull_)return d=this.buffer_[d],d.reset(a,b,c),d;this.isFull_=d==goog.debug.LogBuffer.CAPACITY-1;return this.buffer_[d]=new goog.debug.LogRecord(a,b,c)};goog.debug.LogBuffer.isBufferingEnabled=function(){return 0<goog.debug.LogBuffer.CAPACITY};
@@ -788,16 +788,16 @@ goog.ui.tree.BaseNode.prototype.initAccessibility=function(){var a=this.getEleme
 "presentation");if(a=this.getChildrenElement())if(goog.a11y.aria.setRole(a,"group"),a.hasChildNodes())for(a=this.getChildCount(),b=1;b<=a;b++){var c=this.getChildAt(b-1).getElement();goog.asserts.assert(c,"The child element cannot be null");goog.a11y.aria.setState(c,"setsize",a);goog.a11y.aria.setState(c,"posinset",b)}}};goog.ui.tree.BaseNode.prototype.createDom=function(){var a=this.getDomHelper().safeHtmlToNode(this.toSafeHtml());this.setElementInternal(a)};
 goog.ui.tree.BaseNode.prototype.enterDocument=function(){goog.ui.tree.BaseNode.superClass_.enterDocument.call(this);goog.ui.tree.BaseNode.allNodes[this.getId()]=this;this.initAccessibility()};goog.ui.tree.BaseNode.prototype.exitDocument=function(){goog.ui.tree.BaseNode.superClass_.exitDocument.call(this);delete goog.ui.tree.BaseNode.allNodes[this.getId()]};
 goog.ui.tree.BaseNode.prototype.addChildAt=function(a,b,c){goog.asserts.assert(!a.getParent());goog.asserts.assertInstanceof(a,goog.ui.tree.BaseNode);c=this.getChildAt(b-1);var d=this.getChildAt(b);goog.ui.tree.BaseNode.superClass_.addChildAt.call(this,a,b);a.previousSibling_=c;a.nextSibling_=d;c?c.nextSibling_=a:this.firstChild_=a;d?d.previousSibling_=a:this.lastChild_=a;(b=this.getTree())&&a.setTreeInternal(b);a.setDepth_(this.getDepth()+1);if(this.getElement()&&(this.updateExpandIcon(),this.getExpanded())){b=
-this.getChildrenElement();a.getElement()||a.createDom();var f=a.getElement(),g=d&&d.getElement();b.insertBefore(f,g);this.isInDocument()&&a.enterDocument();d||(c?c.updateExpandIcon():(goog.style.setElementShown(b,!0),this.setExpanded(this.getExpanded())))}};goog.ui.tree.BaseNode.prototype.add=function(a,b){goog.asserts.assert(!b||b.getParent()==this,"Can only add nodes before siblings");a.getParent()&&a.getParent().removeChild(a);this.addChildAt(a,b?this.indexOfChild(b):this.getChildCount());return a};
+this.getChildrenElement();a.getElement()||a.createDom();var e=a.getElement(),f=d&&d.getElement();b.insertBefore(e,f);this.isInDocument()&&a.enterDocument();d||(c?c.updateExpandIcon():(goog.style.setElementShown(b,!0),this.setExpanded(this.getExpanded())))}};goog.ui.tree.BaseNode.prototype.add=function(a,b){goog.asserts.assert(!b||b.getParent()==this,"Can only add nodes before siblings");a.getParent()&&a.getParent().removeChild(a);this.addChildAt(a,b?this.indexOfChild(b):this.getChildCount());return a};
 goog.ui.tree.BaseNode.prototype.removeChild=function(a,b){var c=this.getTree(),d=c?c.getSelectedItem():null;if(d==a||a.contains(d))c.hasFocus()?(this.select(),goog.Timer.callOnce(this.onTimeoutSelect_,10,this)):this.select();goog.ui.tree.BaseNode.superClass_.removeChild.call(this,a);this.lastChild_==a&&(this.lastChild_=a.previousSibling_);this.firstChild_==a&&(this.firstChild_=a.nextSibling_);a.previousSibling_&&(a.previousSibling_.nextSibling_=a.nextSibling_);a.nextSibling_&&(a.nextSibling_.previousSibling_=
-a.previousSibling_);d=a.isLastSibling();a.tree=null;a.depth_=-1;if(c&&(c.removeNode(this),this.isInDocument())){c=this.getChildrenElement();if(a.isInDocument()){var f=a.getElement();c.removeChild(f);a.exitDocument()}d&&(d=this.getLastChild())&&d.updateExpandIcon();this.hasChildren()||(c.style.display="none",this.updateExpandIcon(),this.updateIcon_())}return a};goog.ui.tree.BaseNode.prototype.remove=goog.ui.tree.BaseNode.prototype.removeChild;goog.ui.tree.BaseNode.prototype.onTimeoutSelect_=function(){this.select()};
+a.previousSibling_);d=a.isLastSibling();a.tree=null;a.depth_=-1;if(c&&(c.removeNode(this),this.isInDocument())){c=this.getChildrenElement();if(a.isInDocument()){var e=a.getElement();c.removeChild(e);a.exitDocument()}d&&(d=this.getLastChild())&&d.updateExpandIcon();this.hasChildren()||(c.style.display="none",this.updateExpandIcon(),this.updateIcon_())}return a};goog.ui.tree.BaseNode.prototype.remove=goog.ui.tree.BaseNode.prototype.removeChild;goog.ui.tree.BaseNode.prototype.onTimeoutSelect_=function(){this.select()};
 goog.ui.tree.BaseNode.prototype.getDepth=function(){var a=this.depth_;0>a&&(a=this.computeDepth_(),this.setDepth_(a));return a};goog.ui.tree.BaseNode.prototype.computeDepth_=function(){var a=this.getParent();return a?a.getDepth()+1:0};goog.ui.tree.BaseNode.prototype.setDepth_=function(a){if(a!=this.depth_){this.depth_=a;var b=this.getRowElement();if(b){var c=this.getPixelIndent_()+"px";this.isRightToLeft()?b.style.paddingRight=c:b.style.paddingLeft=c}this.forEachChild(function(b){b.setDepth_(a+1)})}};
 goog.ui.tree.BaseNode.prototype.contains=function(a){for(;a;){if(a==this)return!0;a=a.getParent()}return!1};goog.ui.tree.BaseNode.EMPTY_CHILDREN_=[];goog.ui.tree.BaseNode.prototype.getChildren=function(){var a=[];this.forEachChild(function(b){a.push(b)});return a};goog.ui.tree.BaseNode.prototype.getFirstChild=function(){return this.getChildAt(0)};goog.ui.tree.BaseNode.prototype.getLastChild=function(){return this.getChildAt(this.getChildCount()-1)};
 goog.ui.tree.BaseNode.prototype.getPreviousSibling=function(){return this.previousSibling_};goog.ui.tree.BaseNode.prototype.getNextSibling=function(){return this.nextSibling_};goog.ui.tree.BaseNode.prototype.isLastSibling=function(){return!this.nextSibling_};goog.ui.tree.BaseNode.prototype.isSelected=function(){return this.selected_};goog.ui.tree.BaseNode.prototype.select=function(){var a=this.getTree();a&&a.setSelectedItem(this)};goog.ui.tree.BaseNode.prototype.deselect=goog.nullFunction;
 goog.ui.tree.BaseNode.prototype.setSelectedInternal=function(a){if(this.selected_!=a){this.selected_=a;this.updateRow();var b=this.getElement();b&&(goog.a11y.aria.setState(b,"selected",a),a&&(a=this.getTree().getElement(),goog.asserts.assert(a,"The DOM element for the tree cannot be null"),goog.a11y.aria.setState(a,"activedescendant",this.getId())))}};goog.ui.tree.BaseNode.prototype.getExpanded=function(){return this.expanded_};
 goog.ui.tree.BaseNode.prototype.setExpandedInternal=function(a){this.expanded_=a};
-goog.ui.tree.BaseNode.prototype.setExpanded=function(a){var b=a!=this.expanded_;if(!b||this.dispatchEvent(a?goog.ui.tree.BaseNode.EventType.BEFORE_EXPAND:goog.ui.tree.BaseNode.EventType.BEFORE_COLLAPSE)){var c;this.expanded_=a;c=this.getTree();var d=this.getElement();if(this.hasChildren()){if(!a&&c&&this.contains(c.getSelectedItem())&&this.select(),d){if(c=this.getChildrenElement())if(goog.style.setElementShown(c,a),a&&this.isInDocument()&&!c.hasChildNodes()){var f=[];this.forEachChild(function(a){f.push(a.toSafeHtml())});
-goog.dom.safe.setInnerHtml(c,goog.html.SafeHtml.concat(f));this.forEachChild(function(a){a.enterDocument()})}this.updateExpandIcon()}}else(c=this.getChildrenElement())&&goog.style.setElementShown(c,!1);d&&(this.updateIcon_(),goog.a11y.aria.setState(d,"expanded",a));b&&this.dispatchEvent(a?goog.ui.tree.BaseNode.EventType.EXPAND:goog.ui.tree.BaseNode.EventType.COLLAPSE)}};goog.ui.tree.BaseNode.prototype.toggle=function(){this.setExpanded(!this.getExpanded())};
+goog.ui.tree.BaseNode.prototype.setExpanded=function(a){var b=a!=this.expanded_;if(!b||this.dispatchEvent(a?goog.ui.tree.BaseNode.EventType.BEFORE_EXPAND:goog.ui.tree.BaseNode.EventType.BEFORE_COLLAPSE)){var c;this.expanded_=a;c=this.getTree();var d=this.getElement();if(this.hasChildren()){if(!a&&c&&this.contains(c.getSelectedItem())&&this.select(),d){if(c=this.getChildrenElement())if(goog.style.setElementShown(c,a),a&&this.isInDocument()&&!c.hasChildNodes()){var e=[];this.forEachChild(function(a){e.push(a.toSafeHtml())});
+goog.dom.safe.setInnerHtml(c,goog.html.SafeHtml.concat(e));this.forEachChild(function(a){a.enterDocument()})}this.updateExpandIcon()}}else(c=this.getChildrenElement())&&goog.style.setElementShown(c,!1);d&&(this.updateIcon_(),goog.a11y.aria.setState(d,"expanded",a));b&&this.dispatchEvent(a?goog.ui.tree.BaseNode.EventType.EXPAND:goog.ui.tree.BaseNode.EventType.COLLAPSE)}};goog.ui.tree.BaseNode.prototype.toggle=function(){this.setExpanded(!this.getExpanded())};
 goog.ui.tree.BaseNode.prototype.expand=function(){this.setExpanded(!0)};goog.ui.tree.BaseNode.prototype.collapse=function(){this.setExpanded(!1)};goog.ui.tree.BaseNode.prototype.collapseChildren=function(){this.forEachChild(function(a){a.collapseAll()})};goog.ui.tree.BaseNode.prototype.collapseAll=function(){this.collapseChildren();this.collapse()};goog.ui.tree.BaseNode.prototype.expandChildren=function(){this.forEachChild(function(a){a.expandAll()})};
 goog.ui.tree.BaseNode.prototype.expandAll=function(){this.expandChildren();this.expand()};goog.ui.tree.BaseNode.prototype.reveal=function(){var a=this.getParent();a&&(a.setExpanded(!0),a.reveal())};goog.ui.tree.BaseNode.prototype.setIsUserCollapsible=function(a){(this.isUserCollapsible_=a)||this.expand();this.getElement()&&this.updateExpandIcon()};goog.ui.tree.BaseNode.prototype.isUserCollapsible=function(){return this.isUserCollapsible_};
 goog.ui.tree.BaseNode.prototype.toSafeHtml=function(){var a=this.getTree(),b=!a.getShowLines()||a==this.getParent()&&!a.getShowRootLines()?this.config_.cssChildrenNoLines:this.config_.cssChildren,a=this.getExpanded()&&this.hasChildren(),b={"class":b,style:this.getLineStyle()},c=[];a&&this.forEachChild(function(a){c.push(a.toSafeHtml())});a=goog.html.SafeHtml.create("div",b,c);return goog.html.SafeHtml.create("div",{"class":this.config_.cssItem,id:this.getId()},[this.getRowSafeHtml(),a])};
@@ -805,7 +805,7 @@ goog.ui.tree.BaseNode.prototype.getPixelIndent_=function(){return Math.max(0,(th
 goog.ui.tree.BaseNode.prototype.getRowClassName=function(){var a;a=this.isSelected()?" "+this.config_.cssSelectedRow:"";return this.config_.cssTreeRow+a};goog.ui.tree.BaseNode.prototype.getLabelSafeHtml=function(){var a=goog.html.SafeHtml.create("span",{"class":this.config_.cssItemLabel,title:this.getToolTip()||null},this.getSafeHtml());return goog.html.SafeHtml.concat(a,goog.html.SafeHtml.create("span",{},this.getAfterLabelSafeHtml()))};goog.ui.tree.BaseNode.prototype.getAfterLabelHtml=function(){return goog.html.SafeHtml.unwrap(this.getAfterLabelSafeHtml())};
 goog.ui.tree.BaseNode.prototype.getAfterLabelSafeHtml=function(){return this.afterLabelHtml_};goog.ui.tree.BaseNode.prototype.setAfterLabelSafeHtml=function(a){this.afterLabelHtml_=a;var b=this.getAfterLabelElement();b&&goog.dom.safe.setInnerHtml(b,a)};goog.ui.tree.BaseNode.prototype.getIconSafeHtml=function(){return goog.html.SafeHtml.create("span",{style:{display:"inline-block"},"class":this.getCalculatedIconClass()})};
 goog.ui.tree.BaseNode.prototype.getExpandIconSafeHtml=function(){return goog.html.SafeHtml.create("span",{type:"expand",style:{display:"inline-block"},"class":this.getExpandIconClass()})};
-goog.ui.tree.BaseNode.prototype.getExpandIconClass=function(){var a=this.getTree(),b=!a.getShowLines()||a==this.getParent()&&!a.getShowRootLines(),c=this.config_,d=new goog.string.StringBuffer;d.append(c.cssTreeIcon," ",c.cssExpandTreeIcon," ");if(this.hasChildren()){var f=0;a.getShowExpandIcons()&&this.isUserCollapsible_&&(f=this.getExpanded()?2:1);b||(f=this.isLastSibling()?f+4:f+8);switch(f){case 1:d.append(c.cssExpandTreeIconPlus);break;case 2:d.append(c.cssExpandTreeIconMinus);break;case 4:d.append(c.cssExpandTreeIconL);
+goog.ui.tree.BaseNode.prototype.getExpandIconClass=function(){var a=this.getTree(),b=!a.getShowLines()||a==this.getParent()&&!a.getShowRootLines(),c=this.config_,d=new goog.string.StringBuffer;d.append(c.cssTreeIcon," ",c.cssExpandTreeIcon," ");if(this.hasChildren()){var e=0;a.getShowExpandIcons()&&this.isUserCollapsible_&&(e=this.getExpanded()?2:1);b||(e=this.isLastSibling()?e+4:e+8);switch(e){case 1:d.append(c.cssExpandTreeIconPlus);break;case 2:d.append(c.cssExpandTreeIconMinus);break;case 4:d.append(c.cssExpandTreeIconL);
 break;case 5:d.append(c.cssExpandTreeIconLPlus);break;case 6:d.append(c.cssExpandTreeIconLMinus);break;case 8:d.append(c.cssExpandTreeIconT);break;case 9:d.append(c.cssExpandTreeIconTPlus);break;case 10:d.append(c.cssExpandTreeIconTMinus);break;default:d.append(c.cssExpandTreeIconBlank)}}else b?d.append(c.cssExpandTreeIconBlank):this.isLastSibling()?d.append(c.cssExpandTreeIconL):d.append(c.cssExpandTreeIconT);return d.toString()};
 goog.ui.tree.BaseNode.prototype.getLineStyle=function(){var a=this.getExpanded()&&this.hasChildren();return goog.html.SafeStyle.create({"background-position":this.getBackgroundPosition(),display:a?null:"none"})};goog.ui.tree.BaseNode.prototype.getBackgroundPosition=function(){return(this.isLastSibling()?"-100":(this.getDepth()-1)*this.config_.indentWidth)+"px 0"};
 goog.ui.tree.BaseNode.prototype.getElement=function(){var a=goog.ui.tree.BaseNode.superClass_.getElement.call(this);a||(a=this.getDomHelper().getElement(this.getId()),this.setElementInternal(a));return a};goog.ui.tree.BaseNode.prototype.getRowElement=function(){var a=this.getElement();return a?a.firstChild:null};goog.ui.tree.BaseNode.prototype.getExpandIconElement=function(){var a=this.getRowElement();return a?a.firstChild:null};
@@ -823,18 +823,18 @@ goog.ui.tree.BaseNode.defaultConfig={indentWidth:19,cssRoot:"goog-tree-root goog
 cssExpandTreeIconTMinus:"goog-tree-expand-icon-tminus",cssExpandTreeIconLPlus:"goog-tree-expand-icon-lplus",cssExpandTreeIconLMinus:"goog-tree-expand-icon-lminus",cssExpandTreeIconT:"goog-tree-expand-icon-t",cssExpandTreeIconL:"goog-tree-expand-icon-l",cssExpandTreeIconBlank:"goog-tree-expand-icon-blank",cssExpandedFolderIcon:"goog-tree-expanded-folder-icon",cssCollapsedFolderIcon:"goog-tree-collapsed-folder-icon",cssFileIcon:"goog-tree-file-icon",cssExpandedRootIcon:"goog-tree-expanded-folder-icon",
 cssCollapsedRootIcon:"goog-tree-collapsed-folder-icon",cssSelectedRow:"selected"};goog.ui.tree.TreeNode=function(a,b,c){goog.ui.tree.BaseNode.call(this,a,b,c)};goog.inherits(goog.ui.tree.TreeNode,goog.ui.tree.BaseNode);goog.ui.tree.TreeNode.prototype.getTree=function(){if(this.tree)return this.tree;var a=this.getParent();return a&&(a=a.getTree())?(this.setTreeInternal(a),a):null};
 goog.ui.tree.TreeNode.prototype.getCalculatedIconClass=function(){var a=this.getExpanded(),b=this.getExpandedIconClass();if(a&&b)return b;b=this.getIconClass();if(!a&&b)return b;b=this.getConfig();if(this.hasChildren()){if(a&&b.cssExpandedFolderIcon)return b.cssTreeIcon+" "+b.cssExpandedFolderIcon;if(!a&&b.cssCollapsedFolderIcon)return b.cssTreeIcon+" "+b.cssCollapsedFolderIcon}else if(b.cssFileIcon)return b.cssTreeIcon+" "+b.cssFileIcon;return""};goog.structs.Trie=function(a){this.value_=void 0;this.childNodes_={};a&&this.setAll(a)};goog.structs.Trie.prototype.set=function(a,b){this.setOrAdd_(a,b,!1)};goog.structs.Trie.prototype.add=function(a,b){this.setOrAdd_(a,b,!0)};
-goog.structs.Trie.prototype.setOrAdd_=function(a,b,c){for(var d=this,f=0;f<a.length;f++){var g=a.charAt(f);d.childNodes_[g]||(d.childNodes_[g]=new goog.structs.Trie);d=d.childNodes_[g]}if(c&&void 0!==d.value_)throw Error('The collection already contains the key "'+a+'"');d.value_=b};goog.structs.Trie.prototype.setAll=function(a){var b=goog.structs.getKeys(a);a=goog.structs.getValues(a);for(var c=0;c<b.length;c++)this.set(b[c],a[c])};
-goog.structs.Trie.prototype.getChildNode_=function(a){for(var b=this,c=0;c<a.length;c++){var d=a.charAt(c),b=b.childNodes_[d];if(!b)return}return b};goog.structs.Trie.prototype.get=function(a){return(a=this.getChildNode_(a))?a.value_:void 0};goog.structs.Trie.prototype.getKeyAndPrefixes=function(a,b){var c=this,d={},f=b||0;void 0!==c.value_&&(d[f]=c.value_);for(;f<a.length;f++){var g=a.charAt(f);if(!(g in c.childNodes_))break;c=c.childNodes_[g];void 0!==c.value_&&(d[f]=c.value_)}return d};
-goog.structs.Trie.prototype.getValues=function(){var a=[];this.getValuesInternal_(a);return a};goog.structs.Trie.prototype.getValuesInternal_=function(a){void 0!==this.value_&&a.push(this.value_);for(var b in this.childNodes_)this.childNodes_[b].getValuesInternal_(a)};goog.structs.Trie.prototype.getKeys=function(a){var b=[];if(a){for(var c=this,d=0;d<a.length;d++){var f=a.charAt(d);if(!c.childNodes_[f])return[];c=c.childNodes_[f]}c.getKeysInternal_(a,b)}else this.getKeysInternal_("",b);return b};
+goog.structs.Trie.prototype.setOrAdd_=function(a,b,c){for(var d=this,e=0;e<a.length;e++){var f=a.charAt(e);d.childNodes_[f]||(d.childNodes_[f]=new goog.structs.Trie);d=d.childNodes_[f]}if(c&&void 0!==d.value_)throw Error('The collection already contains the key "'+a+'"');d.value_=b};goog.structs.Trie.prototype.setAll=function(a){var b=goog.structs.getKeys(a);a=goog.structs.getValues(a);for(var c=0;c<b.length;c++)this.set(b[c],a[c])};
+goog.structs.Trie.prototype.getChildNode_=function(a){for(var b=this,c=0;c<a.length;c++){var d=a.charAt(c),b=b.childNodes_[d];if(!b)return}return b};goog.structs.Trie.prototype.get=function(a){return(a=this.getChildNode_(a))?a.value_:void 0};goog.structs.Trie.prototype.getKeyAndPrefixes=function(a,b){var c=this,d={},e=b||0;void 0!==c.value_&&(d[e]=c.value_);for(;e<a.length;e++){var f=a.charAt(e);if(!(f in c.childNodes_))break;c=c.childNodes_[f];void 0!==c.value_&&(d[e]=c.value_)}return d};
+goog.structs.Trie.prototype.getValues=function(){var a=[];this.getValuesInternal_(a);return a};goog.structs.Trie.prototype.getValuesInternal_=function(a){void 0!==this.value_&&a.push(this.value_);for(var b in this.childNodes_)this.childNodes_[b].getValuesInternal_(a)};goog.structs.Trie.prototype.getKeys=function(a){var b=[];if(a){for(var c=this,d=0;d<a.length;d++){var e=a.charAt(d);if(!c.childNodes_[e])return[];c=c.childNodes_[e]}c.getKeysInternal_(a,b)}else this.getKeysInternal_("",b);return b};
 goog.structs.Trie.prototype.getKeysInternal_=function(a,b){void 0!==this.value_&&b.push(a);for(var c in this.childNodes_)this.childNodes_[c].getKeysInternal_(a+c,b)};goog.structs.Trie.prototype.containsKey=function(a){return void 0!==this.get(a)};goog.structs.Trie.prototype.containsPrefix=function(a){return 0==a.length?!this.isEmpty():!!this.getChildNode_(a)};
 goog.structs.Trie.prototype.containsValue=function(a){if(this.value_===a)return!0;for(var b in this.childNodes_)if(this.childNodes_[b].containsValue(a))return!0;return!1};goog.structs.Trie.prototype.clear=function(){this.childNodes_={};this.value_=void 0};
-goog.structs.Trie.prototype.remove=function(a){for(var b=this,c=[],d=0;d<a.length;d++){var f=a.charAt(d);if(!b.childNodes_[f])throw Error('The collection does not have the key "'+a+'"');c.push([b,f]);b=b.childNodes_[f]}a=b.value_;for(delete b.value_;0<c.length;)if(f=c.pop(),b=f[0],f=f[1],b.childNodes_[f].isEmpty())delete b.childNodes_[f];else break;return a};goog.structs.Trie.prototype.clone=function(){return new goog.structs.Trie(this)};goog.structs.Trie.prototype.getCount=function(){return goog.structs.getCount(this.getValues())};
+goog.structs.Trie.prototype.remove=function(a){for(var b=this,c=[],d=0;d<a.length;d++){var e=a.charAt(d);if(!b.childNodes_[e])throw Error('The collection does not have the key "'+a+'"');c.push([b,e]);b=b.childNodes_[e]}a=b.value_;for(delete b.value_;0<c.length;)if(e=c.pop(),b=e[0],e=e[1],b.childNodes_[e].isEmpty())delete b.childNodes_[e];else break;return a};goog.structs.Trie.prototype.clone=function(){return new goog.structs.Trie(this)};goog.structs.Trie.prototype.getCount=function(){return goog.structs.getCount(this.getValues())};
 goog.structs.Trie.prototype.isEmpty=function(){return void 0===this.value_&&goog.object.isEmpty(this.childNodes_)};goog.ui.tree.TypeAhead=function(){this.nodeMap_=new goog.structs.Trie;this.buffer_="";this.matchingNodes_=this.matchingLabels_=null;this.matchingNodeIndex_=this.matchingLabelIndex_=0};goog.ui.tree.TypeAhead.Offset={DOWN:1,UP:-1};
 goog.ui.tree.TypeAhead.prototype.handleNavigation=function(a){var b=!1;switch(a.keyCode){case goog.events.KeyCodes.DOWN:case goog.events.KeyCodes.UP:a.ctrlKey&&(this.jumpTo_(a.keyCode==goog.events.KeyCodes.DOWN?goog.ui.tree.TypeAhead.Offset.DOWN:goog.ui.tree.TypeAhead.Offset.UP),b=!0);break;case goog.events.KeyCodes.BACKSPACE:a=this.buffer_.length-1;b=!0;0<a?(this.buffer_=this.buffer_.substring(0,a),this.jumpToLabel_(this.buffer_)):0==a?this.buffer_="":b=!1;break;case goog.events.KeyCodes.ESC:this.buffer_=
 "",b=!0}return b};goog.ui.tree.TypeAhead.prototype.handleTypeAheadChar=function(a){var b=!1;a.ctrlKey||a.altKey||(a=String.fromCharCode(a.charCode||a.keyCode).toLowerCase(),goog.string.isUnicodeChar(a)&&(" "!=a||this.buffer_)&&(this.buffer_+=a,b=this.jumpToLabel_(this.buffer_)));return b};
 goog.ui.tree.TypeAhead.prototype.setNodeInMap=function(a){var b=a.getText();if(b&&!goog.string.isEmptyOrWhitespace(goog.string.makeSafe(b))){var b=b.toLowerCase(),c=this.nodeMap_.get(b);c?c.push(a):this.nodeMap_.set(b,[a])}};goog.ui.tree.TypeAhead.prototype.removeNodeFromMap=function(a){var b=a.getText();if(b&&!goog.string.isEmptyOrWhitespace(goog.string.makeSafe(b))){var b=b.toLowerCase(),c=this.nodeMap_.get(b);c&&(goog.array.remove(c,a),c.length&&this.nodeMap_.remove(b))}};
 goog.ui.tree.TypeAhead.prototype.jumpToLabel_=function(a){var b=!1;(a=this.nodeMap_.getKeys(a))&&a.length&&(this.matchingLabelIndex_=this.matchingNodeIndex_=0,b=this.nodeMap_.get(a[0]),b=this.selectMatchingNode_(b))&&(this.matchingLabels_=a);return b};
-goog.ui.tree.TypeAhead.prototype.jumpTo_=function(a){var b=!1,c=this.matchingLabels_;if(c){var b=null,d=!1;if(this.matchingNodes_){var f=this.matchingNodeIndex_+a;0<=f&&f<this.matchingNodes_.length?(this.matchingNodeIndex_=f,b=this.matchingNodes_):d=!0}b||(f=this.matchingLabelIndex_+a,0<=f&&f<c.length&&(this.matchingLabelIndex_=f),c.length>this.matchingLabelIndex_&&(b=this.nodeMap_.get(c[this.matchingLabelIndex_])),b&&b.length&&d&&(this.matchingNodeIndex_=a==goog.ui.tree.TypeAhead.Offset.UP?b.length-
+goog.ui.tree.TypeAhead.prototype.jumpTo_=function(a){var b=!1,c=this.matchingLabels_;if(c){var b=null,d=!1;if(this.matchingNodes_){var e=this.matchingNodeIndex_+a;0<=e&&e<this.matchingNodes_.length?(this.matchingNodeIndex_=e,b=this.matchingNodes_):d=!0}b||(e=this.matchingLabelIndex_+a,0<=e&&e<c.length&&(this.matchingLabelIndex_=e),c.length>this.matchingLabelIndex_&&(b=this.nodeMap_.get(c[this.matchingLabelIndex_])),b&&b.length&&d&&(this.matchingNodeIndex_=a==goog.ui.tree.TypeAhead.Offset.UP?b.length-
 1:0));if(b=this.selectMatchingNode_(b))this.matchingLabels_=c}return b};goog.ui.tree.TypeAhead.prototype.selectMatchingNode_=function(a){var b;a&&(this.matchingNodeIndex_<a.length&&(b=a[this.matchingNodeIndex_],this.matchingNodes_=a),b&&(b.reveal(),b.select()));return!!b};goog.ui.tree.TypeAhead.prototype.clear=function(){this.buffer_=""};goog.ui.tree.TreeControl=function(a,b,c){goog.ui.tree.BaseNode.call(this,a,b,c);this.setExpandedInternal(!0);this.setSelectedInternal(!0);this.selectedItem_=this;this.typeAhead_=new goog.ui.tree.TypeAhead;this.focusHandler_=this.keyHandler_=null;this.logger_=goog.log.getLogger("this");this.focused_=!1;this.focusedNode_=null;this.showRootLines_=this.showRootNode_=this.showExpandIcons_=this.showLines_=!0;if(goog.userAgent.IE)try{document.execCommand("BackgroundImageCache",!1,!0)}catch(d){goog.log.warning(this.logger_,
 "Failed to enable background image cache")}};goog.inherits(goog.ui.tree.TreeControl,goog.ui.tree.BaseNode);goog.ui.tree.TreeControl.prototype.getTree=function(){return this};goog.ui.tree.TreeControl.prototype.getDepth=function(){return 0};goog.ui.tree.TreeControl.prototype.reveal=function(){};goog.ui.tree.TreeControl.prototype.handleFocus_=function(a){this.focused_=!0;goog.dom.classlist.add(goog.asserts.assert(this.getElement()),"focused");this.selectedItem_&&this.selectedItem_.select()};
 goog.ui.tree.TreeControl.prototype.handleBlur_=function(a){this.focused_=!1;goog.dom.classlist.remove(goog.asserts.assert(this.getElement()),"focused")};goog.ui.tree.TreeControl.prototype.hasFocus=function(){return this.focused_};goog.ui.tree.TreeControl.prototype.getExpanded=function(){return!this.showRootNode_||goog.ui.tree.TreeControl.superClass_.getExpanded.call(this)};
@@ -843,7 +843,7 @@ goog.ui.tree.TreeControl.prototype.updateExpandIcon=function(){};goog.ui.tree.Tr
 goog.ui.tree.TreeControl.prototype.getCalculatedIconClass=function(){var a=this.getExpanded(),b=this.getExpandedIconClass();if(a&&b)return b;b=this.getIconClass();if(!a&&b)return b;b=this.getConfig();return a&&b.cssExpandedRootIcon?b.cssTreeIcon+" "+b.cssExpandedRootIcon:!a&&b.cssCollapsedRootIcon?b.cssTreeIcon+" "+b.cssCollapsedRootIcon:""};
 goog.ui.tree.TreeControl.prototype.setSelectedItem=function(a){if(this.selectedItem_!=a){var b=!1;this.selectedItem_&&(b=this.selectedItem_==this.focusedNode_,this.selectedItem_.setSelectedInternal(!1));if(this.selectedItem_=a)a.setSelectedInternal(!0),b&&a.select();this.dispatchEvent(goog.events.EventType.CHANGE)}};goog.ui.tree.TreeControl.prototype.getSelectedItem=function(){return this.selectedItem_};
 goog.ui.tree.TreeControl.prototype.setShowLines=function(a){this.showLines_!=a&&(this.showLines_=a,this.isInDocument()&&this.updateLinesAndExpandIcons_())};goog.ui.tree.TreeControl.prototype.getShowLines=function(){return this.showLines_};
-goog.ui.tree.TreeControl.prototype.updateLinesAndExpandIcons_=function(){function a(f){var g=f.getChildrenElement();if(g){var h=!c||b==f.getParent()&&!d?f.getConfig().cssChildrenNoLines:f.getConfig().cssChildren;g.className=h;if(g=f.getExpandIconElement())g.className=f.getExpandIconClass()}f.forEachChild(a)}var b=this,c=b.getShowLines(),d=b.getShowRootLines();a(this)};
+goog.ui.tree.TreeControl.prototype.updateLinesAndExpandIcons_=function(){function a(e){var f=e.getChildrenElement();if(f){var g=!c||b==e.getParent()&&!d?e.getConfig().cssChildrenNoLines:e.getConfig().cssChildren;f.className=g;if(f=e.getExpandIconElement())f.className=e.getExpandIconClass()}e.forEachChild(a)}var b=this,c=b.getShowLines(),d=b.getShowRootLines();a(this)};
 goog.ui.tree.TreeControl.prototype.setShowRootLines=function(a){this.showRootLines_!=a&&(this.showRootLines_=a,this.isInDocument()&&this.updateLinesAndExpandIcons_())};goog.ui.tree.TreeControl.prototype.getShowRootLines=function(){return this.showRootLines_};goog.ui.tree.TreeControl.prototype.setShowExpandIcons=function(a){this.showExpandIcons_!=a&&(this.showExpandIcons_=a,this.isInDocument()&&this.updateLinesAndExpandIcons_())};goog.ui.tree.TreeControl.prototype.getShowExpandIcons=function(){return this.showExpandIcons_};
 goog.ui.tree.TreeControl.prototype.setShowRootNode=function(a){if(this.showRootNode_!=a){this.showRootNode_=a;if(this.isInDocument()){var b=this.getRowElement();b&&(b.className=this.getRowClassName())}!a&&this.getSelectedItem()==this&&this.getFirstChild()&&this.setSelectedItem(this.getFirstChild())}};goog.ui.tree.TreeControl.prototype.getShowRootNode=function(){return this.showRootNode_};
 goog.ui.tree.TreeControl.prototype.initAccessibility=function(){goog.ui.tree.TreeControl.superClass_.initAccessibility.call(this);var a=this.getElement();goog.asserts.assert(a,"The DOM element for the tree cannot be null.");goog.a11y.aria.setRole(a,"tree");goog.a11y.aria.setState(a,"labelledby",this.getLabelElement().id)};
@@ -858,49 +858,48 @@ var Blockly={Blocks:{}};
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.Workspace=function(a){this.id=Blockly.genUid();Blockly.Workspace.WorkspaceDB_[this.id]=this;this.options=a||{};this.RTL=!!this.options.RTL;this.topBlocks_=[];this.listeners_=[];this.undoStack_=[];this.redoStack_=[];this.blockDB_=Object.create(null)};Blockly.Workspace.prototype.rendered=!1;Blockly.Workspace.prototype.MAX_UNDO=1024;Blockly.Workspace.prototype.dispose=function(){this.listeners_.length=0;this.clear();delete Blockly.Workspace.WorkspaceDB_[this.id]};
 Blockly.Workspace.SCAN_ANGLE=3;Blockly.Workspace.prototype.addTopBlock=function(a){this.topBlocks_.push(a)};Blockly.Workspace.prototype.removeTopBlock=function(a){for(var b=!1,c,d=0;c=this.topBlocks_[d];d++)if(c==a){this.topBlocks_.splice(d,1);b=!0;break}if(!b)throw"Block not present in workspace's list of top-most blocks.";};
-Blockly.Workspace.prototype.getTopBlocks=function(a){var b=[].concat(this.topBlocks_);if(a&&1<b.length){var c=Math.sin(goog.math.toRadians(Blockly.Workspace.SCAN_ANGLE));this.RTL&&(c*=-1);b.sort(function(a,b){var g=a.getRelativeToSurfaceXY(),h=b.getRelativeToSurfaceXY();return g.y+c*g.x-(h.y+c*h.x)})}return b};Blockly.Workspace.prototype.getAllBlocks=function(){for(var a=this.getTopBlocks(!1),b=0;b<a.length;b++)a.push.apply(a,a[b].getChildren());return a};
+Blockly.Workspace.prototype.getTopBlocks=function(a){var b=[].concat(this.topBlocks_);if(a&&1<b.length){var c=Math.sin(goog.math.toRadians(Blockly.Workspace.SCAN_ANGLE));this.RTL&&(c*=-1);b.sort(function(a,b){var f=a.getRelativeToSurfaceXY(),g=b.getRelativeToSurfaceXY();return f.y+c*f.x-(g.y+c*g.x)})}return b};Blockly.Workspace.prototype.getAllBlocks=function(){for(var a=this.getTopBlocks(!1),b=0;b<a.length;b++)a.push.apply(a,a[b].getChildren());return a};
 Blockly.Workspace.prototype.clear=function(){var a=Blockly.Events.getGroup();for(a||Blockly.Events.setGroup(!0);this.topBlocks_.length;)this.topBlocks_[0].dispose();a||Blockly.Events.setGroup(!1)};Blockly.Workspace.prototype.getWidth=function(){return 0};Blockly.Workspace.prototype.newBlock=function(a,b){return new Blockly.Block(this,a,b)};Blockly.Workspace.prototype.remainingCapacity=function(){return isNaN(this.options.maxBlocks)?Infinity:this.options.maxBlocks-this.getAllBlocks().length};
-Blockly.Workspace.prototype.undo=function(a){var b=a?this.redoStack_:this.undoStack_,c=a?this.undoStack_:this.redoStack_,d=b.pop();if(d){for(var f=[d];b.length&&d.group&&d.group==b[b.length-1].group;)f.push(b.pop());for(b=0;d=f[b];b++)c.push(d);f=Blockly.Events.filter(f,a);Blockly.Events.recordUndo=!1;for(b=0;d=f[b];b++)d.run(a);Blockly.Events.recordUndo=!0}};Blockly.Workspace.prototype.clearUndo=function(){this.undoStack_.length=0;this.redoStack_.length=0;Blockly.Events.clearPendingUndo()};
+Blockly.Workspace.prototype.undo=function(a){var b=a?this.redoStack_:this.undoStack_,c=a?this.undoStack_:this.redoStack_,d=b.pop();if(d){for(var e=[d];b.length&&d.group&&d.group==b[b.length-1].group;)e.push(b.pop());for(b=0;d=e[b];b++)c.push(d);e=Blockly.Events.filter(e,a);Blockly.Events.recordUndo=!1;for(b=0;d=e[b];b++)d.run(a);Blockly.Events.recordUndo=!0}};Blockly.Workspace.prototype.clearUndo=function(){this.undoStack_.length=0;this.redoStack_.length=0;Blockly.Events.clearPendingUndo()};
 Blockly.Workspace.prototype.addChangeListener=function(a){this.listeners_.push(a);return a};Blockly.Workspace.prototype.removeChangeListener=function(a){a=this.listeners_.indexOf(a);-1!=a&&this.listeners_.splice(a,1)};Blockly.Workspace.prototype.fireChangeListener=function(a){a.recordUndo&&(this.undoStack_.push(a),this.redoStack_.length=0,this.undoStack_.length>this.MAX_UNDO&&this.undoStack_.unshift());for(var b=0,c;c=this.listeners_[b];b++)c(a)};
 Blockly.Workspace.prototype.getBlockById=function(a){return this.blockDB_[a]||null};Blockly.Workspace.WorkspaceDB_=Object.create(null);Blockly.Workspace.getById=function(a){return Blockly.Workspace.WorkspaceDB_[a]||null};Blockly.Workspace.prototype.clear=Blockly.Workspace.prototype.clear;Blockly.Workspace.prototype.clearUndo=Blockly.Workspace.prototype.clearUndo;Blockly.Workspace.prototype.addChangeListener=Blockly.Workspace.prototype.addChangeListener;
-Blockly.Workspace.prototype.removeChangeListener=Blockly.Workspace.prototype.removeChangeListener;Blockly.Bubble=function(a,b,c,d,f,g,h){this.workspace_=a;this.content_=b;this.shape_=c;c=Blockly.Bubble.ARROW_ANGLE;this.workspace_.RTL&&(c=-c);this.arrow_radians_=goog.math.toRadians(c);a.getBubbleCanvas().appendChild(this.createDom_(b,!(!g||!h)));this.setAnchorLocation(d,f);g&&h||(b=this.content_.getBBox(),g=b.width+2*Blockly.Bubble.BORDER_WIDTH,h=b.height+2*Blockly.Bubble.BORDER_WIDTH);this.setBubbleSize(g,h);this.positionBubble_();this.renderArrow_();this.rendered_=!0;a.options.readOnly||(Blockly.bindEvent_(this.bubbleBack_,
+Blockly.Workspace.prototype.removeChangeListener=Blockly.Workspace.prototype.removeChangeListener;Blockly.Bubble=function(a,b,c,d,e,f){this.workspace_=a;this.content_=b;this.shape_=c;c=Blockly.Bubble.ARROW_ANGLE;this.workspace_.RTL&&(c=-c);this.arrow_radians_=goog.math.toRadians(c);a.getBubbleCanvas().appendChild(this.createDom_(b,!(!e||!f)));this.setAnchorLocation(d);e&&f||(b=this.content_.getBBox(),e=b.width+2*Blockly.Bubble.BORDER_WIDTH,f=b.height+2*Blockly.Bubble.BORDER_WIDTH);this.setBubbleSize(e,f);this.positionBubble_();this.renderArrow_();this.rendered_=!0;a.options.readOnly||(Blockly.bindEvent_(this.bubbleBack_,
 "mousedown",this,this.bubbleMouseDown_),this.resizeGroup_&&Blockly.bindEvent_(this.resizeGroup_,"mousedown",this,this.resizeMouseDown_))};Blockly.Bubble.BORDER_WIDTH=6;Blockly.Bubble.ARROW_THICKNESS=10;Blockly.Bubble.ARROW_ANGLE=20;Blockly.Bubble.ARROW_BEND=4;Blockly.Bubble.ANCHOR_RADIUS=8;Blockly.Bubble.onMouseUpWrapper_=null;Blockly.Bubble.onMouseMoveWrapper_=null;
-Blockly.Bubble.unbindDragEvents_=function(){Blockly.Bubble.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Bubble.onMouseUpWrapper_),Blockly.Bubble.onMouseUpWrapper_=null);Blockly.Bubble.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.Bubble.onMouseMoveWrapper_),Blockly.Bubble.onMouseMoveWrapper_=null)};Blockly.Bubble.prototype.rendered_=!1;Blockly.Bubble.prototype.anchorX_=0;Blockly.Bubble.prototype.anchorY_=0;Blockly.Bubble.prototype.relativeLeft_=0;Blockly.Bubble.prototype.relativeTop_=0;
-Blockly.Bubble.prototype.width_=0;Blockly.Bubble.prototype.height_=0;Blockly.Bubble.prototype.autoLayout_=!0;
+Blockly.Bubble.unbindDragEvents_=function(){Blockly.Bubble.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Bubble.onMouseUpWrapper_),Blockly.Bubble.onMouseUpWrapper_=null);Blockly.Bubble.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.Bubble.onMouseMoveWrapper_),Blockly.Bubble.onMouseMoveWrapper_=null)};Blockly.Bubble.prototype.rendered_=!1;Blockly.Bubble.prototype.anchorXY_=null;Blockly.Bubble.prototype.relativeLeft_=0;Blockly.Bubble.prototype.relativeTop_=0;Blockly.Bubble.prototype.width_=0;
+Blockly.Bubble.prototype.height_=0;Blockly.Bubble.prototype.autoLayout_=!0;
 Blockly.Bubble.prototype.createDom_=function(a,b){this.bubbleGroup_=Blockly.createSvgElement("g",{},null);var c={filter:"url(#"+this.workspace_.options.embossFilterId+")"};-1!=goog.userAgent.getUserAgentString().indexOf("JavaFX")&&(c={});c=Blockly.createSvgElement("g",c,this.bubbleGroup_);this.bubbleArrow_=Blockly.createSvgElement("path",{},c);this.bubbleBack_=Blockly.createSvgElement("rect",{"class":"blocklyDraggable",x:0,y:0,rx:Blockly.Bubble.BORDER_WIDTH,ry:Blockly.Bubble.BORDER_WIDTH},c);b?(this.resizeGroup_=
 Blockly.createSvgElement("g",{"class":this.workspace_.RTL?"blocklyResizeSW":"blocklyResizeSE"},this.bubbleGroup_),c=2*Blockly.Bubble.BORDER_WIDTH,Blockly.createSvgElement("polygon",{points:"0,x x,x x,0".replace(/x/g,c.toString())},this.resizeGroup_),Blockly.createSvgElement("line",{"class":"blocklyResizeLine",x1:c/3,y1:c-1,x2:c-1,y2:c/3},this.resizeGroup_),Blockly.createSvgElement("line",{"class":"blocklyResizeLine",x1:2*c/3,y1:c-1,x2:c-1,y2:2*c/3},this.resizeGroup_)):this.resizeGroup_=null;this.bubbleGroup_.appendChild(a);
 return this.bubbleGroup_};
-Blockly.Bubble.prototype.bubbleMouseDown_=function(a){this.promote_();Blockly.Bubble.unbindDragEvents_();Blockly.isRightButton(a)?a.stopPropagation():Blockly.isTargetInput_(a)||(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),this.workspace_.startDrag(a,this.workspace_.RTL?-this.relativeLeft_:this.relativeLeft_,this.relativeTop_),Blockly.Bubble.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Bubble.unbindDragEvents_),Blockly.Bubble.onMouseMoveWrapper_=Blockly.bindEvent_(document,
+Blockly.Bubble.prototype.bubbleMouseDown_=function(a){this.promote_();Blockly.Bubble.unbindDragEvents_();Blockly.isRightButton(a)?a.stopPropagation():Blockly.isTargetInput_(a)||(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),this.workspace_.startDrag(a,new goog.math.Coordinate(this.workspace_.RTL?-this.relativeLeft_:this.relativeLeft_,this.relativeTop_)),Blockly.Bubble.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Bubble.unbindDragEvents_),Blockly.Bubble.onMouseMoveWrapper_=Blockly.bindEvent_(document,
 "mousemove",this,this.bubbleMouseMove_),Blockly.hideChaff(),a.stopPropagation())};Blockly.Bubble.prototype.bubbleMouseMove_=function(a){this.autoLayout_=!1;a=this.workspace_.moveDrag(a);this.relativeLeft_=this.workspace_.RTL?-a.x:a.x;this.relativeTop_=a.y;this.positionBubble_();this.renderArrow_()};
-Blockly.Bubble.prototype.resizeMouseDown_=function(a){this.promote_();Blockly.Bubble.unbindDragEvents_();Blockly.isRightButton(a)||(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),this.workspace_.startDrag(a,this.workspace_.RTL?-this.width_:this.width_,this.height_),Blockly.Bubble.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Bubble.unbindDragEvents_),Blockly.Bubble.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.resizeMouseMove_),Blockly.hideChaff());
-a.stopPropagation()};Blockly.Bubble.prototype.resizeMouseMove_=function(a){this.autoLayout_=!1;a=this.workspace_.moveDrag(a);this.setBubbleSize(this.workspace_.RTL?-a.x:a.x,a.y);this.workspace_.RTL&&this.positionBubble_()};Blockly.Bubble.prototype.registerResizeEvent=function(a,b){Blockly.bindEvent_(this.bubbleGroup_,"resize",a,b)};Blockly.Bubble.prototype.promote_=function(){this.bubbleGroup_.parentNode.appendChild(this.bubbleGroup_)};
-Blockly.Bubble.prototype.setAnchorLocation=function(a,b){this.anchorX_=a;this.anchorY_=b;this.rendered_&&this.positionBubble_()};
-Blockly.Bubble.prototype.layoutBubble_=function(){var a=-this.width_/4,b=-this.height_-Blockly.BlockSvg.MIN_BLOCK_Y,c=this.workspace_.getMetrics();c.viewWidth/=this.workspace_.scale;c.viewLeft/=this.workspace_.scale;this.workspace_.RTL?this.anchorX_-c.viewLeft-a-this.width_<Blockly.Scrollbar.scrollbarThickness?a=this.anchorX_-c.viewLeft-this.width_-Blockly.Scrollbar.scrollbarThickness:this.anchorX_-c.viewLeft-a>c.viewWidth&&(a=this.anchorX_-c.viewLeft-c.viewWidth):this.anchorX_+a<c.viewLeft?a=c.viewLeft-
-this.anchorX_:c.viewLeft+c.viewWidth<this.anchorX_+a+this.width_+Blockly.BlockSvg.SEP_SPACE_X+Blockly.Scrollbar.scrollbarThickness&&(a=c.viewLeft+c.viewWidth-this.anchorX_-this.width_-Blockly.Scrollbar.scrollbarThickness);this.anchorY_+b<c.viewTop&&(b=this.shape_.getBBox().height);this.relativeLeft_=a;this.relativeTop_=b};
-Blockly.Bubble.prototype.positionBubble_=function(){this.bubbleGroup_.setAttribute("transform","translate("+(this.workspace_.RTL?this.anchorX_-this.relativeLeft_-this.width_:this.anchorX_+this.relativeLeft_)+","+(this.relativeTop_+this.anchorY_)+")")};Blockly.Bubble.prototype.getBubbleSize=function(){return{width:this.width_,height:this.height_}};
+Blockly.Bubble.prototype.resizeMouseDown_=function(a){this.promote_();Blockly.Bubble.unbindDragEvents_();Blockly.isRightButton(a)||(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),this.workspace_.startDrag(a,new goog.math.Coordinate(this.workspace_.RTL?-this.width_:this.width_,this.height_)),Blockly.Bubble.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Bubble.unbindDragEvents_),Blockly.Bubble.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.resizeMouseMove_),
+Blockly.hideChaff());a.stopPropagation()};Blockly.Bubble.prototype.resizeMouseMove_=function(a){this.autoLayout_=!1;a=this.workspace_.moveDrag(a);this.setBubbleSize(this.workspace_.RTL?-a.x:a.x,a.y);this.workspace_.RTL&&this.positionBubble_()};Blockly.Bubble.prototype.registerResizeEvent=function(a,b){Blockly.bindEvent_(this.bubbleGroup_,"resize",a,b)};Blockly.Bubble.prototype.promote_=function(){this.bubbleGroup_.parentNode.appendChild(this.bubbleGroup_)};
+Blockly.Bubble.prototype.setAnchorLocation=function(a){this.anchorXY_=a;this.rendered_&&this.positionBubble_()};
+Blockly.Bubble.prototype.layoutBubble_=function(){var a=-this.width_/4,b=-this.height_-Blockly.BlockSvg.MIN_BLOCK_Y,c=this.workspace_.getMetrics();c.viewWidth/=this.workspace_.scale;c.viewLeft/=this.workspace_.scale;var d=this.anchorXY_.x;this.workspace_.RTL?d-c.viewLeft-a-this.width_<Blockly.Scrollbar.scrollbarThickness?a=d-c.viewLeft-this.width_-Blockly.Scrollbar.scrollbarThickness:d-c.viewLeft-a>c.viewWidth&&(a=d-c.viewLeft-c.viewWidth):d+a<c.viewLeft?a=c.viewLeft-d:c.viewLeft+c.viewWidth<d+a+
+this.width_+Blockly.BlockSvg.SEP_SPACE_X+Blockly.Scrollbar.scrollbarThickness&&(a=c.viewLeft+c.viewWidth-d-this.width_-Blockly.Scrollbar.scrollbarThickness);this.anchorXY_.y+b<c.viewTop&&(b=this.shape_.getBBox().height);this.relativeLeft_=a;this.relativeTop_=b};
+Blockly.Bubble.prototype.positionBubble_=function(){var a=this.anchorXY_.x,a=this.workspace_.RTL?a-(this.relativeLeft_+this.width_):a+this.relativeLeft_;this.bubbleGroup_.setAttribute("transform","translate("+a+","+(this.relativeTop_+this.anchorXY_.y)+")")};Blockly.Bubble.prototype.getBubbleSize=function(){return{width:this.width_,height:this.height_}};
 Blockly.Bubble.prototype.setBubbleSize=function(a,b){var c=2*Blockly.Bubble.BORDER_WIDTH;a=Math.max(a,c+45);b=Math.max(b,c+20);this.width_=a;this.height_=b;this.bubbleBack_.setAttribute("width",a);this.bubbleBack_.setAttribute("height",b);this.resizeGroup_&&(this.workspace_.RTL?this.resizeGroup_.setAttribute("transform","translate("+2*Blockly.Bubble.BORDER_WIDTH+","+(b-c)+") scale(-1 1)"):this.resizeGroup_.setAttribute("transform","translate("+(a-c)+","+(b-c)+")"));this.rendered_&&(this.autoLayout_&&
 this.layoutBubble_(),this.positionBubble_(),this.renderArrow_());Blockly.fireUiEvent(this.bubbleGroup_,"resize")};
-Blockly.Bubble.prototype.renderArrow_=function(){var a=[],b=this.width_/2,c=this.height_/2,d=-this.relativeLeft_,f=-this.relativeTop_;if(b==d&&c==f)a.push("M "+b+","+c);else{f-=c;d-=b;this.workspace_.RTL&&(d*=-1);var g=Math.sqrt(f*f+d*d),h=Math.acos(d/g);0>f&&(h=2*Math.PI-h);var k=h+Math.PI/2;k>2*Math.PI&&(k-=2*Math.PI);var l=Math.sin(k),m=Math.cos(k),r=this.getBubbleSize(),k=(r.width+r.height)/Blockly.Bubble.ARROW_THICKNESS,k=Math.min(k,r.width,r.height)/2,r=1-Blockly.Bubble.ANCHOR_RADIUS/g,d=b+
-r*d,f=c+r*f,r=b+k*m,n=c+k*l,b=b-k*m,c=c-k*l,l=h+this.arrow_radians_;l>2*Math.PI&&(l-=2*Math.PI);h=Math.sin(l)*g/Blockly.Bubble.ARROW_BEND;g=Math.cos(l)*g/Blockly.Bubble.ARROW_BEND;a.push("M"+r+","+n);a.push("C"+(r+g)+","+(n+h)+" "+d+","+f+" "+d+","+f);a.push("C"+d+","+f+" "+(b+g)+","+(c+h)+" "+b+","+c)}a.push("z");this.bubbleArrow_.setAttribute("d",a.join(" "))};Blockly.Bubble.prototype.setColour=function(a){this.bubbleBack_.setAttribute("fill",a);this.bubbleArrow_.setAttribute("fill",a)};
-Blockly.Bubble.prototype.dispose=function(){Blockly.Bubble.unbindDragEvents_();goog.dom.removeNode(this.bubbleGroup_);this.shape_=this.content_=this.workspace_=this.resizeGroup_=this.bubbleBack_=this.bubbleArrow_=this.bubbleGroup_=null};Blockly.Icon=function(a){this.block_=a};Blockly.Icon.prototype.collapseHidden=!0;Blockly.Icon.prototype.SIZE=17;Blockly.Icon.prototype.bubble_=null;Blockly.Icon.prototype.iconX_=0;Blockly.Icon.prototype.iconY_=0;
-Blockly.Icon.prototype.createIcon=function(){this.iconGroup_||(this.iconGroup_=Blockly.createSvgElement("g",{"class":"blocklyIconGroup"},null),this.drawIcon_(this.iconGroup_),this.block_.getSvgRoot().appendChild(this.iconGroup_),Blockly.bindEvent_(this.iconGroup_,"mouseup",this,this.iconClick_),this.updateEditable())};Blockly.Icon.prototype.dispose=function(){goog.dom.removeNode(this.iconGroup_);this.iconGroup_=null;this.setVisible(!1);this.block_=null};
-Blockly.Icon.prototype.updateEditable=function(){this.block_.isInFlyout||!this.block_.isEditable()?Blockly.addClass_(this.iconGroup_,"blocklyIconGroupReadonly"):Blockly.removeClass_(this.iconGroup_,"blocklyIconGroupReadonly")};Blockly.Icon.prototype.isVisible=function(){return!!this.bubble_};Blockly.Icon.prototype.iconClick_=function(a){Blockly.dragMode_!=Blockly.DRAG_FREE&&(this.block_.isInFlyout||Blockly.isRightButton(a)||this.setVisible(!this.isVisible()))};
-Blockly.Icon.prototype.updateColour=function(){this.isVisible()&&this.bubble_.setColour(this.block_.getColour())};
+Blockly.Bubble.prototype.renderArrow_=function(){var a=[],b=this.width_/2,c=this.height_/2,d=-this.relativeLeft_,e=-this.relativeTop_;if(b==d&&c==e)a.push("M "+b+","+c);else{e-=c;d-=b;this.workspace_.RTL&&(d*=-1);var f=Math.sqrt(e*e+d*d),g=Math.acos(d/f);0>e&&(g=2*Math.PI-g);var h=g+Math.PI/2;h>2*Math.PI&&(h-=2*Math.PI);var k=Math.sin(h),l=Math.cos(h),q=this.getBubbleSize(),h=(q.width+q.height)/Blockly.Bubble.ARROW_THICKNESS,h=Math.min(h,q.width,q.height)/2,q=1-Blockly.Bubble.ANCHOR_RADIUS/f,d=b+
+q*d,e=c+q*e,q=b+h*l,m=c+h*k,b=b-h*l,c=c-h*k,k=g+this.arrow_radians_;k>2*Math.PI&&(k-=2*Math.PI);g=Math.sin(k)*f/Blockly.Bubble.ARROW_BEND;f=Math.cos(k)*f/Blockly.Bubble.ARROW_BEND;a.push("M"+q+","+m);a.push("C"+(q+f)+","+(m+g)+" "+d+","+e+" "+d+","+e);a.push("C"+d+","+e+" "+(b+f)+","+(c+g)+" "+b+","+c)}a.push("z");this.bubbleArrow_.setAttribute("d",a.join(" "))};Blockly.Bubble.prototype.setColour=function(a){this.bubbleBack_.setAttribute("fill",a);this.bubbleArrow_.setAttribute("fill",a)};
+Blockly.Bubble.prototype.dispose=function(){Blockly.Bubble.unbindDragEvents_();goog.dom.removeNode(this.bubbleGroup_);this.shape_=this.content_=this.workspace_=this.resizeGroup_=this.bubbleBack_=this.bubbleArrow_=this.bubbleGroup_=null};Blockly.Icon=function(a){this.block_=a};Blockly.Icon.prototype.collapseHidden=!0;Blockly.Icon.prototype.SIZE=17;Blockly.Icon.prototype.bubble_=null;Blockly.Icon.prototype.iconXY_=null;Blockly.Icon.prototype.createIcon=function(){this.iconGroup_||(this.iconGroup_=Blockly.createSvgElement("g",{"class":"blocklyIconGroup"},null),this.drawIcon_(this.iconGroup_),this.block_.getSvgRoot().appendChild(this.iconGroup_),Blockly.bindEvent_(this.iconGroup_,"mouseup",this,this.iconClick_),this.updateEditable())};
+Blockly.Icon.prototype.dispose=function(){goog.dom.removeNode(this.iconGroup_);this.iconGroup_=null;this.setVisible(!1);this.block_=null};Blockly.Icon.prototype.updateEditable=function(){this.block_.isInFlyout||!this.block_.isEditable()?Blockly.addClass_(this.iconGroup_,"blocklyIconGroupReadonly"):Blockly.removeClass_(this.iconGroup_,"blocklyIconGroupReadonly")};Blockly.Icon.prototype.isVisible=function(){return!!this.bubble_};
+Blockly.Icon.prototype.iconClick_=function(a){Blockly.dragMode_!=Blockly.DRAG_FREE&&(this.block_.isInFlyout||Blockly.isRightButton(a)||this.setVisible(!this.isVisible()))};Blockly.Icon.prototype.updateColour=function(){this.isVisible()&&this.bubble_.setColour(this.block_.getColour())};
 Blockly.Icon.prototype.renderIcon=function(a){if(this.collapseHidden&&this.block_.isCollapsed())return this.iconGroup_.setAttribute("display","none"),a;this.iconGroup_.setAttribute("display","block");var b=this.SIZE;this.block_.RTL&&(a-=b);this.iconGroup_.setAttribute("transform","translate("+a+",5)");this.computeIconLocation();return a=this.block_.RTL?a-Blockly.BlockSvg.SEP_SPACE_X:a+(b+Blockly.BlockSvg.SEP_SPACE_X)};
-Blockly.Icon.prototype.setIconLocation=function(a,b){this.iconX_=a;this.iconY_=b;this.isVisible()&&this.bubble_.setAnchorLocation(a,b)};Blockly.Icon.prototype.computeIconLocation=function(){var a=this.block_.getRelativeToSurfaceXY(),b=Blockly.getRelativeXY_(this.iconGroup_),c=a.x+b.x+this.SIZE/2,a=a.y+b.y+this.SIZE/2;c===this.iconX_&&a===this.iconY_||this.setIconLocation(c,a)};Blockly.Icon.prototype.getIconLocation=function(){return{x:this.iconX_,y:this.iconY_}};
+Blockly.Icon.prototype.setIconLocation=function(a){this.iconXY_=a;this.isVisible()&&this.bubble_.setAnchorLocation(a)};Blockly.Icon.prototype.computeIconLocation=function(){var a=this.block_.getRelativeToSurfaceXY(),b=Blockly.getRelativeXY_(this.iconGroup_),a=new goog.math.Coordinate(a.x+b.x+this.SIZE/2,a.y+b.y+this.SIZE/2);goog.math.Coordinate.equals(this.getIconLocation(),a)||this.setIconLocation(a)};Blockly.Icon.prototype.getIconLocation=function(){return this.iconXY_};
 // Copyright 2011 Google Inc.  Apache License 2.0
 Blockly.Comment=function(a){Blockly.Comment.superClass_.constructor.call(this,a);this.createIcon()};goog.inherits(Blockly.Comment,Blockly.Icon);Blockly.Comment.prototype.text_="";Blockly.Comment.prototype.width_=160;Blockly.Comment.prototype.height_=80;
 Blockly.Comment.prototype.drawIcon_=function(a){Blockly.createSvgElement("circle",{"class":"blocklyIconShape",r:"8",cx:"8",cy:"8"},a);Blockly.createSvgElement("path",{"class":"blocklyIconSymbol",d:"m6.8,10h2c0.003,-0.617 0.271,-0.962 0.633,-1.266 2.875,-2.405 0.607,-5.534 -3.765,-3.874v1.7c3.12,-1.657 3.698,0.118 2.336,1.25 -1.201,0.998 -1.201,1.528 -1.204,2.19z"},a);Blockly.createSvgElement("rect",{"class":"blocklyIconSymbol",x:"6.8",y:"10.78",height:"2",width:"2"},a)};
 Blockly.Comment.prototype.createEditor_=function(){this.foreignObject_=Blockly.createSvgElement("foreignObject",{x:Blockly.Bubble.BORDER_WIDTH,y:Blockly.Bubble.BORDER_WIDTH},null);var a=document.createElementNS(Blockly.HTML_NS,"body");a.setAttribute("xmlns",Blockly.HTML_NS);a.className="blocklyMinimalBody";this.textarea_=document.createElementNS(Blockly.HTML_NS,"textarea");this.textarea_.className="blocklyCommentTextarea";this.textarea_.setAttribute("dir",this.block_.RTL?"RTL":"LTR");a.appendChild(this.textarea_);
 this.foreignObject_.appendChild(a);Blockly.bindEvent_(this.textarea_,"mouseup",this,this.textareaFocus_);Blockly.bindEvent_(this.textarea_,"wheel",this,function(a){a.stopPropagation()});Blockly.bindEvent_(this.textarea_,"change",this,function(a){this.text_!=this.textarea_.value&&(Blockly.Events.fire(new Blockly.Events.Change(this.block_,"comment",null,this.text_,this.textarea_.value)),this.text_=this.textarea_.value)});return this.foreignObject_};
 Blockly.Comment.prototype.updateEditable=function(){this.isVisible()&&(this.setVisible(!1),this.setVisible(!0));Blockly.Icon.prototype.updateEditable.call(this)};Blockly.Comment.prototype.resizeBubble_=function(){var a=this.bubble_.getBubbleSize(),b=2*Blockly.Bubble.BORDER_WIDTH;this.foreignObject_.setAttribute("width",a.width-b);this.foreignObject_.setAttribute("height",a.height-b);this.textarea_.style.width=a.width-b-4+"px";this.textarea_.style.height=a.height-b-4+"px"};
-Blockly.Comment.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"commentOpen",!a,a)),!this.block_.isEditable()&&!this.textarea_||goog.userAgent.IE)Blockly.Warning.prototype.setVisible.call(this,a);else{var b=this.getText(),c=this.getBubbleSize();a?(this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconX_,this.iconY_,this.width_,this.height_),this.bubble_.registerResizeEvent(this,this.resizeBubble_),
+Blockly.Comment.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"commentOpen",!a,a)),!this.block_.isEditable()&&!this.textarea_||goog.userAgent.IE)Blockly.Warning.prototype.setVisible.call(this,a);else{var b=this.getText(),c=this.getBubbleSize();a?(this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconXY_,this.width_,this.height_),this.bubble_.registerResizeEvent(this,this.resizeBubble_),
 this.updateColour()):(this.bubble_.dispose(),this.foreignObject_=this.textarea_=this.bubble_=null);this.setText(b);this.setBubbleSize(c.width,c.height)}};Blockly.Comment.prototype.textareaFocus_=function(a){this.bubble_.promote_();this.textarea_.focus()};Blockly.Comment.prototype.getBubbleSize=function(){return this.isVisible()?this.bubble_.getBubbleSize():{width:this.width_,height:this.height_}};
 Blockly.Comment.prototype.setBubbleSize=function(a,b){this.textarea_?this.bubble_.setBubbleSize(a,b):(this.width_=a,this.height_=b)};Blockly.Comment.prototype.getText=function(){return this.textarea_?this.textarea_.value:this.text_};Blockly.Comment.prototype.setText=function(a){this.text_!=a&&(Blockly.Events.fire(new Blockly.Events.Change(this.block_,"comment",null,this.text_,a)),this.text_=a);this.textarea_&&(this.textarea_.value=a)};
 Blockly.Comment.prototype.dispose=function(){Blockly.Events.isEnabled()&&this.setText("");this.block_.comment=null;Blockly.Icon.prototype.dispose.call(this)};Blockly.Connection=function(a,b){this.sourceBlock_=a;this.type=b;a.workspace.connectionDBList&&(this.db_=a.workspace.connectionDBList[b],this.dbOpposite_=a.workspace.connectionDBList[Blockly.OPPOSITE_TYPE[b]],this.hidden_=!this.db_)};Blockly.Connection.CAN_CONNECT=0;Blockly.Connection.REASON_SELF_CONNECTION=1;Blockly.Connection.REASON_WRONG_TYPE=2;Blockly.Connection.REASON_TARGET_NULL=3;Blockly.Connection.REASON_CHECKS_FAILED=4;Blockly.Connection.REASON_DIFFERENT_WORKSPACES=5;
-Blockly.Connection.connect_=function(a,b){var c=a.getSourceBlock(),d=b.getSourceBlock();b.isConnected()&&b.disconnect();if(a.isConnected()){var f=a.targetBlock(),g=a.getShadowDom();a.setShadowDom(null);if(f.isShadow())g=Blockly.Xml.blockToDom(f),f.dispose(),f=null;else if(a.type==Blockly.INPUT_VALUE){if(!f.outputConnection)throw"Orphan block does not have an output connection.";var h=Blockly.Connection.lastConnectionInRow_(d,f);h&&(f.outputConnection.connect(h),f=null)}else if(a.type==Blockly.NEXT_STATEMENT){if(!f.previousConnection)throw"Orphan block does not have a previous connection.";
-for(h=d;h.nextConnection;)if(h.nextConnection.isConnected())h=h.getNextBlock();else{f.previousConnection.checkType_(h.nextConnection)&&(h.nextConnection.connect(f.previousConnection),f=null);break}}if(f&&(a.disconnect(),Blockly.Events.recordUndo)){var k=Blockly.Events.getGroup();setTimeout(function(){f.workspace&&!f.getParent()&&(Blockly.Events.setGroup(k),f.outputConnection?f.outputConnection.bumpAwayFrom_(a):f.previousConnection&&f.previousConnection.bumpAwayFrom_(a),Blockly.Events.setGroup(!1))},
-Blockly.BUMP_DELAY)}a.setShadowDom(g)}var l;Blockly.Events.isEnabled()&&(l=new Blockly.Events.Move(d));Blockly.Connection.connectReciprocally_(a,b);d.setParent(c);l&&(l.recordNew(),Blockly.Events.fire(l));c.rendered&&c.updateDisabled();d.rendered&&d.updateDisabled();c.rendered&&d.rendered&&(a.type==Blockly.NEXT_STATEMENT||a.type==Blockly.PREVIOUS_STATEMENT?d.render():c.render())};Blockly.Connection.prototype.targetConnection=null;Blockly.Connection.prototype.check_=null;
+Blockly.Connection.connect_=function(a,b){var c=a.getSourceBlock(),d=b.getSourceBlock();b.isConnected()&&b.disconnect();if(a.isConnected()){var e=a.targetBlock(),f=a.getShadowDom();a.setShadowDom(null);if(e.isShadow())f=Blockly.Xml.blockToDom(e),e.dispose(),e=null;else if(a.type==Blockly.INPUT_VALUE){if(!e.outputConnection)throw"Orphan block does not have an output connection.";var g=Blockly.Connection.lastConnectionInRow_(d,e);g&&(e.outputConnection.connect(g),e=null)}else if(a.type==Blockly.NEXT_STATEMENT){if(!e.previousConnection)throw"Orphan block does not have a previous connection.";
+for(g=d;g.nextConnection;)if(g.nextConnection.isConnected())g=g.getNextBlock();else{e.previousConnection.checkType_(g.nextConnection)&&(g.nextConnection.connect(e.previousConnection),e=null);break}}if(e&&(a.disconnect(),Blockly.Events.recordUndo)){var h=Blockly.Events.getGroup();setTimeout(function(){e.workspace&&!e.getParent()&&(Blockly.Events.setGroup(h),e.outputConnection?e.outputConnection.bumpAwayFrom_(a):e.previousConnection&&e.previousConnection.bumpAwayFrom_(a),Blockly.Events.setGroup(!1))},
+Blockly.BUMP_DELAY)}a.setShadowDom(f)}var k;Blockly.Events.isEnabled()&&(k=new Blockly.Events.Move(d));Blockly.Connection.connectReciprocally_(a,b);d.setParent(c);k&&(k.recordNew(),Blockly.Events.fire(k));c.rendered&&c.updateDisabled();d.rendered&&d.updateDisabled();c.rendered&&d.rendered&&(a.type==Blockly.NEXT_STATEMENT||a.type==Blockly.PREVIOUS_STATEMENT?d.render():c.render())};Blockly.Connection.prototype.targetConnection=null;Blockly.Connection.prototype.check_=null;
 Blockly.Connection.prototype.shadowDom_=null;Blockly.Connection.prototype.x_=0;Blockly.Connection.prototype.y_=0;Blockly.Connection.prototype.inDB_=!1;Blockly.Connection.prototype.db_=null;Blockly.Connection.prototype.dbOpposite_=null;Blockly.Connection.prototype.hidden_=null;
 Blockly.Connection.prototype.dispose=function(){if(this.isConnected())throw"Disconnect connection before disposing of it.";this.inDB_&&this.db_.removeConnection_(this);Blockly.highlightedConnection_==this&&(Blockly.highlightedConnection_=null);Blockly.localConnection_==this&&(Blockly.localConnection_=null);this.dbOpposite_=this.db_=null};Blockly.Connection.prototype.getSourceBlock=function(){return this.sourceBlock_};
 Blockly.Connection.prototype.isSuperior=function(){return this.type==Blockly.INPUT_VALUE||this.type==Blockly.NEXT_STATEMENT};Blockly.Connection.prototype.isConnected=function(){return!!this.targetConnection};Blockly.Connection.prototype.distanceFrom=function(a){var b=this.x_-a.x_;a=this.y_-a.y_;return Math.sqrt(b*b+a*a)};
@@ -910,16 +909,16 @@ Blockly.Connection.prototype.checkConnection_=function(a){switch(this.canConnect
 default:throw"Unknown connection failure: this should never happen!";}};
 Blockly.Connection.prototype.isConnectionAllowed=function(a,b){if(this.distanceFrom(a)>b)return!1;var c=this.canConnectWithReason_(a);if(c!=Blockly.Connection.CAN_CONNECT&&c!=Blockly.Connection.REASON_MUST_DISCONNECT)return!1;if(a.type==Blockly.OUTPUT_VALUE||a.type==Blockly.PREVIOUS_STATEMENT)if(a.isConnected()||this.isConnected())return!1;if(a.type==Blockly.INPUT_VALUE&&a.isConnected()&&!a.targetBlock().isMovable()&&!a.targetBlock().isShadow()||this.type==Blockly.PREVIOUS_STATEMENT&&a.isConnected()&&
 !this.sourceBlock_.nextConnection)return!1;var c=a.getSourceBlock(),d=this.sourceBlock_;if(c&&d){do{if(d==c)return!1;c=c.getParent()}while(c)}return!0};Blockly.Connection.prototype.connect=function(a){this.targetConnection!=a&&(this.checkConnection_(a),this.isSuperior()?Blockly.Connection.connect_(this,a):Blockly.Connection.connect_(a,this))};Blockly.Connection.connectReciprocally_=function(a,b){goog.asserts.assert(a&&b,"Cannot connect null connections.");a.targetConnection=b;b.targetConnection=a};
-Blockly.Connection.singleConnection_=function(a,b){for(var c=!1,d=0;d<a.inputList.length;d++){var f=a.inputList[d].connection;if(f&&f.type==Blockly.INPUT_VALUE&&b.outputConnection.checkType_(f)){if(c)return null;c=f}}return c};Blockly.Connection.lastConnectionInRow_=function(a,b){for(var c=a,d;d=Blockly.Connection.singleConnection_(c,b);)if(c=d.targetBlock(),!c||c.isShadow())return d;return null};
-Blockly.Connection.prototype.disconnect=function(){var a=this.targetConnection;goog.asserts.assert(a,"Source connection not connected.");goog.asserts.assert(a.targetConnection==this,"Target connection not connected to source connection.");var b,c,d;this.isSuperior()?(b=this.sourceBlock_,c=a.getSourceBlock(),d=this):(b=a.getSourceBlock(),c=this.sourceBlock_,d=a);var f;Blockly.Events.isEnabled()&&(f=new Blockly.Events.Move(c));this.targetConnection=a.targetConnection=null;c.setParent(null);f&&(f.recordNew(),
-Blockly.Events.fire(f));a=d.getShadowDom();if(b.workspace&&a&&Blockly.Events.recordUndo){a=Blockly.Xml.domToBlock(a,b.workspace);if(a.outputConnection)d.connect(a.outputConnection);else if(a.previousConnection)d.connect(a.previousConnection);else throw"Child block does not have output or previous statement.";a.initSvg&&a.initSvg();a.render(!1)}b.rendered&&b.render();c.rendered&&(c.updateDisabled(),c.render())};
+Blockly.Connection.singleConnection_=function(a,b){for(var c=!1,d=0;d<a.inputList.length;d++){var e=a.inputList[d].connection;if(e&&e.type==Blockly.INPUT_VALUE&&b.outputConnection.checkType_(e)){if(c)return null;c=e}}return c};Blockly.Connection.lastConnectionInRow_=function(a,b){for(var c=a,d;d=Blockly.Connection.singleConnection_(c,b);)if(c=d.targetBlock(),!c||c.isShadow())return d;return null};
+Blockly.Connection.prototype.disconnect=function(){var a=this.targetConnection;goog.asserts.assert(a,"Source connection not connected.");goog.asserts.assert(a.targetConnection==this,"Target connection not connected to source connection.");var b,c,d;this.isSuperior()?(b=this.sourceBlock_,c=a.getSourceBlock(),d=this):(b=a.getSourceBlock(),c=this.sourceBlock_,d=a);var e;Blockly.Events.isEnabled()&&(e=new Blockly.Events.Move(c));this.targetConnection=a.targetConnection=null;c.setParent(null);e&&(e.recordNew(),
+Blockly.Events.fire(e));a=d.getShadowDom();if(b.workspace&&a&&Blockly.Events.recordUndo){a=Blockly.Xml.domToBlock(a,b.workspace);if(a.outputConnection)d.connect(a.outputConnection);else if(a.previousConnection)d.connect(a.previousConnection);else throw"Child block does not have output or previous statement.";a.initSvg&&a.initSvg();a.render(!1)}b.rendered&&b.render();c.rendered&&(c.updateDisabled(),c.render())};
 Blockly.Connection.prototype.targetBlock=function(){return this.isConnected()?this.targetConnection.getSourceBlock():null};
 Blockly.Connection.prototype.bumpAwayFrom_=function(a){if(Blockly.dragMode_==Blockly.DRAG_NONE){var b=this.sourceBlock_.getRootBlock();if(!b.isInFlyout){var c=!1;if(!b.isMovable()){b=a.getSourceBlock().getRootBlock();if(!b.isMovable())return;a=this;c=!0}b.getSvgRoot().parentNode.appendChild(b.getSvgRoot());var d=a.x_+Blockly.SNAP_RADIUS-this.x_;a=a.y_+Blockly.SNAP_RADIUS-this.y_;c&&(a=-a);b.RTL&&(d=-d);b.moveBy(d,a)}}};
 Blockly.Connection.prototype.moveTo=function(a,b){this.inDB_&&this.db_.removeConnection_(this);this.x_=a;this.y_=b;this.hidden_||this.db_.addConnection(this)};Blockly.Connection.prototype.moveBy=function(a,b){this.moveTo(this.x_+a,this.y_+b)};
-Blockly.Connection.prototype.tighten_=function(){var a=this.targetConnection.x_-this.x_,b=this.targetConnection.y_-this.y_;if(0!=a||0!=b){var c=this.targetBlock(),d=c.getSvgRoot();if(!d)throw"block is not rendered.";d=Blockly.getRelativeXY_(d);c.getSvgRoot().setAttribute("transform","translate("+(d.x-a)+","+(d.y-b)+")");c.moveConnections_(-a,-b)}};Blockly.Connection.prototype.closest=function(a,b,c){return this.dbOpposite_.searchForClosest(this,a,b,c)};
+Blockly.Connection.prototype.tighten_=function(){var a=this.targetConnection.x_-this.x_,b=this.targetConnection.y_-this.y_;if(0!=a||0!=b){var c=this.targetBlock(),d=c.getSvgRoot();if(!d)throw"block is not rendered.";d=Blockly.getRelativeXY_(d);c.getSvgRoot().setAttribute("transform","translate("+(d.x-a)+","+(d.y-b)+")");c.moveConnections_(-a,-b)}};Blockly.Connection.prototype.closest=function(a,b){return this.dbOpposite_.searchForClosest(this,a,b)};
 Blockly.Connection.prototype.checkType_=function(a){if(!this.check_||!a.check_)return!0;for(var b=0;b<this.check_.length;b++)if(-1!=a.check_.indexOf(this.check_[b]))return!0;return!1};Blockly.Connection.prototype.setCheck=function(a){a?(goog.isArray(a)||(a=[a]),this.check_=a,this.isConnected()&&!this.checkType_(this.targetConnection)&&((this.isSuperior()?this.targetBlock():this.sourceBlock_).unplug(),this.sourceBlock_.bumpNeighbours_())):this.check_=null;return this};
 Blockly.Connection.prototype.setShadowDom=function(a){this.shadowDom_=a};Blockly.Connection.prototype.getShadowDom=function(){return this.shadowDom_};Blockly.Connection.prototype.neighbours_=function(a){return this.dbOpposite_.getNeighbours(this,a)};Blockly.Connection.prototype.setHidden=function(a){(this.hidden_=a)&&this.inDB_?this.db_.removeConnection_(this):a||this.inDB_||this.db_.addConnection(this)};
-Blockly.Connection.prototype.hideAll=function(){this.setHidden(!0);if(this.isConnected())for(var a=this.targetBlock().getDescendants(),b=0;b<a.length;b++){for(var c=a[b],d=c.getConnections_(!0),f=0;f<d.length;f++)d[f].setHidden(!0);c=c.getIcons();for(d=0;d<c.length;d++)c[d].setVisible(!1)}};
+Blockly.Connection.prototype.hideAll=function(){this.setHidden(!0);if(this.isConnected())for(var a=this.targetBlock().getDescendants(),b=0;b<a.length;b++){for(var c=a[b],d=c.getConnections_(!0),e=0;e<d.length;e++)d[e].setHidden(!0);c=c.getIcons();for(d=0;d<c.length;d++)c[d].setVisible(!1)}};
 Blockly.Connection.prototype.unhideAll=function(){this.setHidden(!1);var a=[];if(this.type!=Blockly.INPUT_VALUE&&this.type!=Blockly.NEXT_STATEMENT)return a;var b=this.targetBlock();if(b){var c;b.isCollapsed()?(c=[],b.outputConnection&&c.push(b.outputConnection),b.nextConnection&&c.push(b.nextConnection),b.previousConnection&&c.push(b.previousConnection)):c=b.getConnections_(!0);for(var d=0;d<c.length;d++)a.push.apply(a,c[d].unhideAll());a.length||(a[0]=b)}return a};
 Blockly.Connection.prototype.highlight=function(){var a;a=this.type==Blockly.INPUT_VALUE||this.type==Blockly.OUTPUT_VALUE?"m 0,0 "+Blockly.BlockSvg.TAB_PATH_DOWN+" v 5":"m -20,0 h 5 "+Blockly.BlockSvg.NOTCH_PATH_LEFT+" h 5";var b=this.sourceBlock_.getRelativeToSurfaceXY();Blockly.Connection.highlightedPath_=Blockly.createSvgElement("path",{"class":"blocklyHighlightedConnectionPath",d:a,transform:"translate("+(this.x_-b.x)+","+(this.y_-b.y)+")"+(this.sourceBlock_.RTL?" scale(-1 1)":"")},this.sourceBlock_.getSvgRoot())};
 Blockly.Connection.prototype.unhighlight=function(){goog.dom.removeNode(Blockly.Connection.highlightedPath_);delete Blockly.Connection.highlightedPath_};Blockly.Field=function(a,b){this.size_=new goog.math.Size(0,25);this.setValue(a);this.setValidator(b)};Blockly.Field.cacheWidths_=null;Blockly.Field.cacheReference_=0;Blockly.Field.prototype.name=void 0;Blockly.Field.prototype.maxDisplayLength=50;Blockly.Field.prototype.text_="";Blockly.Field.prototype.sourceBlock_=null;Blockly.Field.prototype.visible_=!0;Blockly.Field.prototype.validator_=null;Blockly.Field.NBSP="\u00a0";Blockly.Field.prototype.EDITABLE=!0;
@@ -942,29 +941,29 @@ Blockly.Tooltip.showPid_=setTimeout(Blockly.Tooltip.show_,Blockly.Tooltip.HOVER_
 Blockly.Tooltip.show_=function(){Blockly.Tooltip.poisonedElement_=Blockly.Tooltip.element_;if(Blockly.Tooltip.DIV){goog.dom.removeChildren(Blockly.Tooltip.DIV);for(var a=Blockly.Tooltip.element_.tooltip;goog.isFunction(a);)a=a();for(var a=Blockly.Tooltip.wrap_(a,Blockly.Tooltip.LIMIT),a=a.split("\n"),b=0;b<a.length;b++){var c=document.createElement("div");c.appendChild(document.createTextNode(a[b]));Blockly.Tooltip.DIV.appendChild(c)}a=Blockly.Tooltip.element_.RTL;b=goog.dom.getViewportSize();Blockly.Tooltip.DIV.style.direction=
 a?"rtl":"ltr";Blockly.Tooltip.DIV.style.display="block";Blockly.Tooltip.visible=!0;var c=Blockly.Tooltip.lastX_,c=a?c-(Blockly.Tooltip.OFFSET_X+Blockly.Tooltip.DIV.offsetWidth):c+Blockly.Tooltip.OFFSET_X,d=Blockly.Tooltip.lastY_+Blockly.Tooltip.OFFSET_Y;d+Blockly.Tooltip.DIV.offsetHeight>b.height+window.scrollY&&(d-=Blockly.Tooltip.DIV.offsetHeight+2*Blockly.Tooltip.OFFSET_Y);a?c=Math.max(Blockly.Tooltip.MARGINS-window.scrollX,c):c+Blockly.Tooltip.DIV.offsetWidth>b.width+window.scrollX-2*Blockly.Tooltip.MARGINS&&
 (c=b.width-Blockly.Tooltip.DIV.offsetWidth-2*Blockly.Tooltip.MARGINS);Blockly.Tooltip.DIV.style.top=d+"px";Blockly.Tooltip.DIV.style.left=c+"px"}};
-Blockly.Tooltip.wrap_=function(a,b){if(a.length<=b)return a;for(var c=a.trim().split(/\s+/),d=0;d<c.length;d++)c[d].length>b&&(b=c[d].length);var f,d=-Infinity,g,h=1;do{f=d;g=a;for(var k=[],l=c.length/h,m=1,d=0;d<c.length-1;d++)m<(d+1.5)/l?(m++,k[d]=!0):k[d]=!1;k=Blockly.Tooltip.wrapMutate_(c,k,b);d=Blockly.Tooltip.wrapScore_(c,k,b);a=Blockly.Tooltip.wrapToText_(c,k);h++}while(d>f);return g};
-Blockly.Tooltip.wrapScore_=function(a,b,c){for(var d=[0],f=[],g=0;g<a.length;g++)d[d.length-1]+=a[g].length,!0===b[g]?(d.push(0),f.push(a[g].charAt(a[g].length-1))):!1===b[g]&&d[d.length-1]++;a=Math.max.apply(Math,d);for(g=b=0;g<d.length;g++)b-=2*Math.pow(Math.abs(c-d[g]),1.5),b-=Math.pow(a-d[g],1.5),-1!=".?!".indexOf(f[g])?b+=c/3:-1!=",;)]}".indexOf(f[g])&&(b+=c/4);1<d.length&&d[d.length-1]<=d[d.length-2]&&(b+=.5);return b};
-Blockly.Tooltip.wrapMutate_=function(a,b,c){for(var d=Blockly.Tooltip.wrapScore_(a,b,c),f,g=0;g<b.length-1;g++)if(b[g]!=b[g+1]){var h=[].concat(b);h[g]=!h[g];h[g+1]=!h[g+1];var k=Blockly.Tooltip.wrapScore_(a,h,c);k>d&&(d=k,f=h)}return f?Blockly.Tooltip.wrapMutate_(a,f,c):b};Blockly.Tooltip.wrapToText_=function(a,b){for(var c=[],d=0;d<a.length;d++)c.push(a[d]),void 0!==b[d]&&c.push(b[d]?"\n":" ");return c.join("")};Blockly.FieldLabel=function(a,b){this.size_=new goog.math.Size(0,17.5);this.class_=b;this.setValue(a)};goog.inherits(Blockly.FieldLabel,Blockly.Field);Blockly.FieldLabel.prototype.EDITABLE=!1;
+Blockly.Tooltip.wrap_=function(a,b){if(a.length<=b)return a;for(var c=a.trim().split(/\s+/),d=0;d<c.length;d++)c[d].length>b&&(b=c[d].length);var e,d=-Infinity,f,g=1;do{e=d;f=a;for(var h=[],k=c.length/g,l=1,d=0;d<c.length-1;d++)l<(d+1.5)/k?(l++,h[d]=!0):h[d]=!1;h=Blockly.Tooltip.wrapMutate_(c,h,b);d=Blockly.Tooltip.wrapScore_(c,h,b);a=Blockly.Tooltip.wrapToText_(c,h);g++}while(d>e);return f};
+Blockly.Tooltip.wrapScore_=function(a,b,c){for(var d=[0],e=[],f=0;f<a.length;f++)d[d.length-1]+=a[f].length,!0===b[f]?(d.push(0),e.push(a[f].charAt(a[f].length-1))):!1===b[f]&&d[d.length-1]++;a=Math.max.apply(Math,d);for(f=b=0;f<d.length;f++)b-=2*Math.pow(Math.abs(c-d[f]),1.5),b-=Math.pow(a-d[f],1.5),-1!=".?!".indexOf(e[f])?b+=c/3:-1!=",;)]}".indexOf(e[f])&&(b+=c/4);1<d.length&&d[d.length-1]<=d[d.length-2]&&(b+=.5);return b};
+Blockly.Tooltip.wrapMutate_=function(a,b,c){for(var d=Blockly.Tooltip.wrapScore_(a,b,c),e,f=0;f<b.length-1;f++)if(b[f]!=b[f+1]){var g=[].concat(b);g[f]=!g[f];g[f+1]=!g[f+1];var h=Blockly.Tooltip.wrapScore_(a,g,c);h>d&&(d=h,e=g)}return e?Blockly.Tooltip.wrapMutate_(a,e,c):b};Blockly.Tooltip.wrapToText_=function(a,b){for(var c=[],d=0;d<a.length;d++)c.push(a[d]),void 0!==b[d]&&c.push(b[d]?"\n":" ");return c.join("")};Blockly.FieldLabel=function(a,b){this.size_=new goog.math.Size(0,17.5);this.class_=b;this.setValue(a)};goog.inherits(Blockly.FieldLabel,Blockly.Field);Blockly.FieldLabel.prototype.EDITABLE=!1;
 Blockly.FieldLabel.prototype.init=function(){this.textElement_||(this.textElement_=Blockly.createSvgElement("text",{"class":"blocklyText",y:this.size_.height-5},null),this.class_&&Blockly.addClass_(this.textElement_,this.class_),this.visible_||(this.textElement_.style.display="none"),this.sourceBlock_.getSvgRoot().appendChild(this.textElement_),this.textElement_.tooltip=this.sourceBlock_,Blockly.Tooltip.bindMouseEvents(this.textElement_),this.updateTextNode_())};
 Blockly.FieldLabel.prototype.dispose=function(){goog.dom.removeNode(this.textElement_);this.textElement_=null};Blockly.FieldLabel.prototype.getSvgRoot=function(){return this.textElement_};Blockly.FieldLabel.prototype.setTooltip=function(a){this.textElement_.tooltip=a};Blockly.Input=function(a,b,c,d){this.type=a;this.name=b;this.sourceBlock_=c;this.connection=d;this.fieldRow=[]};Blockly.Input.prototype.align=Blockly.ALIGN_LEFT;Blockly.Input.prototype.visible_=!0;
 Blockly.Input.prototype.appendField=function(a,b){if(!a&&!b)return this;goog.isString(a)&&(a=new Blockly.FieldLabel(a));a.setSourceBlock(this.sourceBlock_);this.sourceBlock_.rendered&&a.init();a.name=b;a.prefixField&&this.appendField(a.prefixField);this.fieldRow.push(a);a.suffixField&&this.appendField(a.suffixField);this.sourceBlock_.rendered&&(this.sourceBlock_.render(),this.sourceBlock_.bumpNeighbours_());return this};
 Blockly.Input.prototype.appendTitle=function(a,b){console.warn("Deprecated call to appendTitle, use appendField instead.");return this.appendField(a,b)};Blockly.Input.prototype.removeField=function(a){for(var b=0,c;c=this.fieldRow[b];b++)if(c.name===a){c.dispose();this.fieldRow.splice(b,1);this.sourceBlock_.rendered&&(this.sourceBlock_.render(),this.sourceBlock_.bumpNeighbours_());return}goog.asserts.fail('Field "%s" not found.',a)};Blockly.Input.prototype.isVisible=function(){return this.visible_};
-Blockly.Input.prototype.setVisible=function(a){var b=[];if(this.visible_==a)return b;for(var c=(this.visible_=a)?"block":"none",d=0,f;f=this.fieldRow[d];d++)f.setVisible(a);this.connection&&(a?b=this.connection.unhideAll():this.connection.hideAll(),d=this.connection.targetBlock())&&(d.getSvgRoot().style.display=c,a||(d.rendered=!1));return b};Blockly.Input.prototype.setCheck=function(a){if(!this.connection)throw"This input does not have a connection.";this.connection.setCheck(a);return this};
+Blockly.Input.prototype.setVisible=function(a){var b=[];if(this.visible_==a)return b;for(var c=(this.visible_=a)?"block":"none",d=0,e;e=this.fieldRow[d];d++)e.setVisible(a);this.connection&&(a?b=this.connection.unhideAll():this.connection.hideAll(),d=this.connection.targetBlock())&&(d.getSvgRoot().style.display=c,a||(d.rendered=!1));return b};Blockly.Input.prototype.setCheck=function(a){if(!this.connection)throw"This input does not have a connection.";this.connection.setCheck(a);return this};
 Blockly.Input.prototype.setAlign=function(a){this.align=a;this.sourceBlock_.rendered&&this.sourceBlock_.render();return this};Blockly.Input.prototype.init=function(){if(this.sourceBlock_.workspace.rendered)for(var a=0;a<this.fieldRow.length;a++)this.fieldRow[a].init(this.sourceBlock_)};Blockly.Input.prototype.dispose=function(){for(var a=0,b;b=this.fieldRow[a];a++)b.dispose();this.connection&&this.connection.dispose();this.sourceBlock_=null};Blockly.ConnectionDB=function(){};Blockly.ConnectionDB.prototype=[];Blockly.ConnectionDB.constructor=Blockly.ConnectionDB;Blockly.ConnectionDB.prototype.addConnection=function(a){if(a.inDB_)throw"Connection already in database.";if(!a.getSourceBlock().isInFlyout){var b=this.findPositionForConnection_(a);this.splice(b,0,a);a.inDB_=!0}};
 Blockly.ConnectionDB.prototype.findConnection=function(a){if(!this.length)return-1;var b=this.findPositionForConnection_(a);if(b>=this.length)return-1;for(var c=a.y_,d=b;0<=d&&this[d].y_==c;){if(this[d]==a)return d;d--}for(;b<this.length&&this[b].y_==c;){if(this[b]==a)return b;b++}return-1};
 Blockly.ConnectionDB.prototype.findPositionForConnection_=function(a){if(!this.length)return 0;for(var b=0,c=this.length;b<c;){var d=Math.floor((b+c)/2);if(this[d].y_<a.y_)b=d+1;else if(this[d].y_>a.y_)c=d;else{b=d;break}}return b};Blockly.ConnectionDB.prototype.removeConnection_=function(a){if(!a.inDB_)throw"Connection not in database.";var b=this.findConnection(a);if(-1==b)throw"Unable to find connection in connectionDB.";a.inDB_=!1;this.splice(b,1)};
-Blockly.ConnectionDB.prototype.getNeighbours=function(a,b){function c(a){var c=f-d[a].x_,h=g-d[a].y_;Math.sqrt(c*c+h*h)<=b&&m.push(d[a]);return h<b}for(var d=this,f=a.x_,g=a.y_,h=0,k=d.length-2,l=k;h<l;)d[l].y_<g?h=l:k=l,l=Math.floor((h+k)/2);var k=h=l,m=[];a.getSourceBlock();if(d.length){for(;0<=h&&c(h);)h--;do k++;while(k<d.length&&c(k))}return m};Blockly.ConnectionDB.prototype.isInYRange_=function(a,b,c){return Math.abs(this[a].y_-b)<=c};
-Blockly.ConnectionDB.prototype.searchForClosest=function(a,b,c,d){if(!this.length)return{connection:null,radius:b};var f=a.y_,g=a.x_;a.x_=g+c;a.y_=f+d;var h=this.findPositionForConnection_(a);c=null;d=b;for(var k,l=h-1;0<=l&&this.isInYRange_(l,a.y_,b);)k=this[l],a.isConnectionAllowed(k,d)&&(c=k,d=k.distanceFrom(a)),l--;for(;h<this.length&&this.isInYRange_(h,a.y_,b);)k=this[h],a.isConnectionAllowed(k,d)&&(c=k,d=k.distanceFrom(a)),h++;a.x_=g;a.y_=f;return{connection:c,radius:d}};
+Blockly.ConnectionDB.prototype.getNeighbours=function(a,b){function c(a){var c=e-d[a].x_,g=f-d[a].y_;Math.sqrt(c*c+g*g)<=b&&l.push(d[a]);return g<b}for(var d=this,e=a.x_,f=a.y_,g=0,h=d.length-2,k=h;g<k;)d[k].y_<f?g=k:h=k,k=Math.floor((g+h)/2);var h=g=k,l=[];a.getSourceBlock();if(d.length){for(;0<=g&&c(g);)g--;do h++;while(h<d.length&&c(h))}return l};Blockly.ConnectionDB.prototype.isInYRange_=function(a,b,c){return Math.abs(this[a].y_-b)<=c};
+Blockly.ConnectionDB.prototype.searchForClosest=function(a,b,c){if(!this.length)return{connection:null,radius:b};var d=a.y_,e=a.x_;a.x_=e+c.x;a.y_=d+c.y;var f=this.findPositionForConnection_(a);c=null;for(var g=b,h,k=f-1;0<=k&&this.isInYRange_(k,a.y_,b);)h=this[k],a.isConnectionAllowed(h,g)&&(c=h,g=h.distanceFrom(a)),k--;for(;f<this.length&&this.isInYRange_(f,a.y_,b);)h=this[f],a.isConnectionAllowed(h,g)&&(c=h,g=h.distanceFrom(a)),f++;a.x_=e;a.y_=d;return{connection:c,radius:g}};
 Blockly.ConnectionDB.init=function(a){var b=[];b[Blockly.INPUT_VALUE]=new Blockly.ConnectionDB;b[Blockly.OUTPUT_VALUE]=new Blockly.ConnectionDB;b[Blockly.NEXT_STATEMENT]=new Blockly.ConnectionDB;b[Blockly.PREVIOUS_STATEMENT]=new Blockly.ConnectionDB;a.connectionDBList=b};
 // Copyright 2016 Google Inc.  Apache License 2.0
-Blockly.Options=function(a){var b=!!a.readOnly;if(b)var c=null,d=!1,f=!1,g=!1,h=!1,k=!1,l=!1;else c=Blockly.Options.parseToolboxTree(a.toolbox),d=!(!c||!c.getElementsByTagName("category").length),f=a.trashcan,void 0===f&&(f=d),g=a.collapse,void 0===g&&(g=d),h=a.comments,void 0===h&&(h=d),k=a.disable,void 0===k&&(k=d),l=a.sounds,void 0===l&&(l=!0);var m=a.scrollbars;void 0===m&&(m=d);var r=a.css;void 0===r&&(r=!0);var n="https://blockly-demo.appspot.com/static/media/";a.media?n=a.media:a.path&&(n=
-a.path+"media/");this.RTL=!!a.rtl;this.collapse=g;this.comments=h;this.disable=k;this.readOnly=b;this.maxBlocks=a.maxBlocks||Infinity;this.pathToMedia=n;this.hasCategories=d;this.hasScrollbars=m;this.hasTrashcan=f;this.hasSounds=l;this.hasCss=r;this.languageTree=c;this.gridOptions=Blockly.Options.parseGridOptions_(a);this.zoomOptions=Blockly.Options.parseZoomOptions_(a)};Blockly.Options.prototype.parentWorkspace=null;Blockly.Options.prototype.setMetrics=function(a){};
+Blockly.Options=function(a){var b=!!a.readOnly;if(b)var c=null,d=!1,e=!1,f=!1,g=!1,h=!1,k=!1;else c=Blockly.Options.parseToolboxTree(a.toolbox),d=!(!c||!c.getElementsByTagName("category").length),e=a.trashcan,void 0===e&&(e=d),f=a.collapse,void 0===f&&(f=d),g=a.comments,void 0===g&&(g=d),h=a.disable,void 0===h&&(h=d),k=a.sounds,void 0===k&&(k=!0);var l=a.scrollbars;void 0===l&&(l=d);var q=a.css;void 0===q&&(q=!0);var m="https://blockly-demo.appspot.com/static/media/";a.media?m=a.media:a.path&&(m=
+a.path+"media/");this.RTL=!!a.rtl;this.collapse=f;this.comments=g;this.disable=h;this.readOnly=b;this.maxBlocks=a.maxBlocks||Infinity;this.pathToMedia=m;this.hasCategories=d;this.hasScrollbars=l;this.hasTrashcan=e;this.hasSounds=k;this.hasCss=q;this.languageTree=c;this.gridOptions=Blockly.Options.parseGridOptions_(a);this.zoomOptions=Blockly.Options.parseZoomOptions_(a)};Blockly.Options.prototype.parentWorkspace=null;Blockly.Options.prototype.setMetrics=function(a){};
 Blockly.Options.prototype.getMetrics=function(){return null};Blockly.Options.parseZoomOptions_=function(a){a=a.zoom||{};var b={};b.controls=void 0===a.controls?!1:!!a.controls;b.wheel=void 0===a.wheel?!1:!!a.wheel;b.startScale=void 0===a.startScale?1:parseFloat(a.startScale);b.maxScale=void 0===a.maxScale?3:parseFloat(a.maxScale);b.minScale=void 0===a.minScale?.3:parseFloat(a.minScale);b.scaleSpeed=void 0===a.scaleSpeed?1.2:parseFloat(a.scaleSpeed);return b};
 Blockly.Options.parseGridOptions_=function(a){a=a.grid||{};var b={};b.spacing=parseFloat(a.spacing)||0;b.colour=a.colour||"#888";b.length=parseFloat(a.length)||1;b.snap=0<b.spacing&&!!a.snap;return b};Blockly.Options.parseToolboxTree=function(a){a?("string"!=typeof a&&("undefined"==typeof XSLTProcessor&&a.outerHTML?a=a.outerHTML:a instanceof Element||(a=null)),"string"==typeof a&&(a=Blockly.Xml.textToDom(a))):a=null;return a};Blockly.ScrollbarPair=function(a){this.workspace_=a;this.hScroll=new Blockly.Scrollbar(a,!0,!0);this.vScroll=new Blockly.Scrollbar(a,!1,!0);this.corner_=Blockly.createSvgElement("rect",{height:Blockly.Scrollbar.scrollbarThickness,width:Blockly.Scrollbar.scrollbarThickness,"class":"blocklyScrollbarBackground"},null);Blockly.Scrollbar.insertAfter_(this.corner_,a.getBubbleCanvas())};Blockly.ScrollbarPair.prototype.oldHostMetrics_=null;
 Blockly.ScrollbarPair.prototype.dispose=function(){goog.dom.removeNode(this.corner_);this.oldHostMetrics_=this.workspace_=this.corner_=null;this.hScroll.dispose();this.hScroll=null;this.vScroll.dispose();this.vScroll=null};
 Blockly.ScrollbarPair.prototype.resize=function(){var a=this.workspace_.getMetrics();if(a){var b=!1,c=!1;this.oldHostMetrics_&&this.oldHostMetrics_.viewWidth==a.viewWidth&&this.oldHostMetrics_.viewHeight==a.viewHeight&&this.oldHostMetrics_.absoluteTop==a.absoluteTop&&this.oldHostMetrics_.absoluteLeft==a.absoluteLeft?(this.oldHostMetrics_&&this.oldHostMetrics_.contentWidth==a.contentWidth&&this.oldHostMetrics_.viewLeft==a.viewLeft&&this.oldHostMetrics_.contentLeft==a.contentLeft||(b=!0),this.oldHostMetrics_&&
 this.oldHostMetrics_.contentHeight==a.contentHeight&&this.oldHostMetrics_.viewTop==a.viewTop&&this.oldHostMetrics_.contentTop==a.contentTop||(c=!0)):c=b=!0;b&&this.hScroll.resize(a);c&&this.vScroll.resize(a);this.oldHostMetrics_&&this.oldHostMetrics_.viewWidth==a.viewWidth&&this.oldHostMetrics_.absoluteLeft==a.absoluteLeft||this.corner_.setAttribute("x",this.vScroll.xCoordinate);this.oldHostMetrics_&&this.oldHostMetrics_.viewHeight==a.viewHeight&&this.oldHostMetrics_.absoluteTop==a.absoluteTop||this.corner_.setAttribute("y",
-this.hScroll.yCoordinate);this.oldHostMetrics_=a}};Blockly.ScrollbarPair.prototype.set=function(a,b){var c={},d=a*this.hScroll.ratio_,f=b*this.vScroll.ratio_,g=parseFloat(this.hScroll.svgBackground_.getAttribute("width")),h=parseFloat(this.vScroll.svgBackground_.getAttribute("height"));c.x=this.getRatio_(d,g);c.y=this.getRatio_(f,h);this.workspace_.setMetrics(c);this.hScroll.svgKnob_.setAttribute("x",d);this.vScroll.svgKnob_.setAttribute("y",f)};
+this.hScroll.yCoordinate);this.oldHostMetrics_=a}};Blockly.ScrollbarPair.prototype.set=function(a,b){var c={},d=a*this.hScroll.ratio_,e=b*this.vScroll.ratio_,f=parseFloat(this.hScroll.svgBackground_.getAttribute("width")),g=parseFloat(this.vScroll.svgBackground_.getAttribute("height"));c.x=this.getRatio_(d,f);c.y=this.getRatio_(e,g);this.workspace_.setMetrics(c);this.hScroll.svgKnob_.setAttribute("x",d);this.vScroll.svgKnob_.setAttribute("y",e)};
 Blockly.ScrollbarPair.prototype.getRatio_=function(a,b){var c=a/b;return isNaN(c)?0:c};
 Blockly.Scrollbar=function(a,b,c){this.workspace_=a;this.pair_=c||!1;this.horizontal_=b;this.createDom_();b?(this.svgBackground_.setAttribute("height",Blockly.Scrollbar.scrollbarThickness),this.svgKnob_.setAttribute("height",Blockly.Scrollbar.scrollbarThickness-5),this.svgKnob_.setAttribute("y",2.5)):(this.svgBackground_.setAttribute("width",Blockly.Scrollbar.scrollbarThickness),this.svgKnob_.setAttribute("width",Blockly.Scrollbar.scrollbarThickness-5),this.svgKnob_.setAttribute("x",2.5));this.onMouseDownBarWrapper_=
 Blockly.bindEvent_(this.svgBackground_,"mousedown",this,this.onMouseDownBar_);this.onMouseDownKnobWrapper_=Blockly.bindEvent_(this.svgKnob_,"mousedown",this,this.onMouseDownKnob_)};Blockly.Scrollbar.scrollbarThickness=15;goog.events.BrowserFeature.TOUCH_ENABLED&&(Blockly.Scrollbar.scrollbarThickness=25);
@@ -975,7 +974,7 @@ b/a.contentHeight;if(-Infinity===this.ratio_||Infinity===this.ratio_||isNaN(this
 Math.max(0,b));this.svgKnob_.setAttribute("y",this.constrainKnob_(d))}this.onScroll_()};
 Blockly.Scrollbar.prototype.createDom_=function(){this.svgGroup_=Blockly.createSvgElement("g",{"class":"blocklyScrollbar"+(this.horizontal_?"Horizontal":"Vertical")},null);this.svgBackground_=Blockly.createSvgElement("rect",{"class":"blocklyScrollbarBackground"},this.svgGroup_);var a=Math.floor((Blockly.Scrollbar.scrollbarThickness-5)/2);this.svgKnob_=Blockly.createSvgElement("rect",{"class":"blocklyScrollbarKnob",rx:a,ry:a},this.svgGroup_);Blockly.Scrollbar.insertAfter_(this.svgGroup_,this.workspace_.getBubbleCanvas())};
 Blockly.Scrollbar.prototype.isVisible=function(){return"none"!=this.svgGroup_.getAttribute("display")};Blockly.Scrollbar.prototype.setVisible=function(a){if(a!=this.isVisible()){if(this.pair_)throw"Unable to toggle visibility of paired scrollbars.";a?this.svgGroup_.setAttribute("display","block"):(this.workspace_.setMetrics({x:0,y:0}),this.svgGroup_.setAttribute("display","none"))}};
-Blockly.Scrollbar.prototype.onMouseDownBar_=function(a){this.onMouseUpKnob_();if(!Blockly.isRightButton(a)){var b=Blockly.mouseToSvg(a,this.workspace_.getParentSvg()),b=this.horizontal_?b.x:b.y,c=Blockly.getSvgXY_(this.svgKnob_,this.workspace_),c=this.horizontal_?c.x:c.y,d=parseFloat(this.svgKnob_.getAttribute(this.horizontal_?"width":"height")),f=parseFloat(this.svgKnob_.getAttribute(this.horizontal_?"x":"y")),g=.95*d;b<=c?f-=g:b>=c+d&&(f+=g);this.svgKnob_.setAttribute(this.horizontal_?"x":"y",this.constrainKnob_(f));
+Blockly.Scrollbar.prototype.onMouseDownBar_=function(a){this.onMouseUpKnob_();if(!Blockly.isRightButton(a)){var b=Blockly.mouseToSvg(a,this.workspace_.getParentSvg()),b=this.horizontal_?b.x:b.y,c=Blockly.getSvgXY_(this.svgKnob_,this.workspace_),c=this.horizontal_?c.x:c.y,d=parseFloat(this.svgKnob_.getAttribute(this.horizontal_?"width":"height")),e=parseFloat(this.svgKnob_.getAttribute(this.horizontal_?"x":"y")),f=.95*d;b<=c?e-=f:b>=c+d&&(e+=f);this.svgKnob_.setAttribute(this.horizontal_?"x":"y",this.constrainKnob_(e));
 this.onScroll_()}a.stopPropagation()};
 Blockly.Scrollbar.prototype.onMouseDownKnob_=function(a){this.onMouseUpKnob_();Blockly.isRightButton(a)||(Blockly.setPageSelectable(!1),this.startDragKnob=parseFloat(this.svgKnob_.getAttribute(this.horizontal_?"x":"y")),this.startDragMouse=this.horizontal_?a.clientX:a.clientY,Blockly.Scrollbar.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,this.onMouseUpKnob_),Blockly.Scrollbar.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.onMouseMoveKnob_));a.stopPropagation()};
 Blockly.Scrollbar.prototype.onMouseMoveKnob_=function(a){this.svgKnob_.setAttribute(this.horizontal_?"x":"y",this.constrainKnob_(this.startDragKnob+((this.horizontal_?a.clientX:a.clientY)-this.startDragMouse)));this.onScroll_()};
@@ -991,33 +990,33 @@ Blockly.Trashcan.prototype.position=function(){var a=this.workspace_.getMetrics(
 Blockly.Trashcan.prototype.getClientRect=function(){var a=this.svgGroup_.getBoundingClientRect();return new goog.math.Rect(a.left-this.MARGIN_HOTSPOT_,a.top-this.MARGIN_HOTSPOT_,a.width+2*this.MARGIN_HOTSPOT_,a.height+2*this.MARGIN_HOTSPOT_)};Blockly.Trashcan.prototype.setOpen_=function(a){this.isOpen!=a&&(goog.Timer.clear(this.lidTask_),this.isOpen=a,this.animateLid_())};
 Blockly.Trashcan.prototype.animateLid_=function(){this.lidOpen_+=this.isOpen?.2:-.2;this.lidOpen_=goog.math.clamp(this.lidOpen_,0,1);var a=45*this.lidOpen_;this.svgLid_.setAttribute("transform","rotate("+(this.workspace_.RTL?-a:a)+","+(this.workspace_.RTL?4:this.WIDTH_-4)+","+(this.LID_HEIGHT_-2)+")");a=goog.math.lerp(.4,.8,this.lidOpen_);this.svgGroup_.style.opacity=a;0<this.lidOpen_&&1>this.lidOpen_&&(this.lidTask_=goog.Timer.callOnce(this.animateLid_,20,this))};
 Blockly.Trashcan.prototype.close=function(){this.setOpen_(!1)};Blockly.Trashcan.prototype.click=function(){var a=this.workspace_.startScrollX-this.workspace_.scrollX,b=this.workspace_.startScrollY-this.workspace_.scrollY;Math.sqrt(a*a+b*b)>Blockly.DRAG_RADIUS||console.log("TODO: Inspect trash.")};Blockly.Xml={};Blockly.Xml.workspaceToDom=function(a){var b=goog.dom.createDom("xml");a=a.getTopBlocks(!0);for(var c=0,d;d=a[c];c++)b.appendChild(Blockly.Xml.blockToDomWithXY(d));return b};Blockly.Xml.blockToDomWithXY=function(a){var b;a.workspace.RTL&&(b=a.workspace.getWidth());var c=Blockly.Xml.blockToDom(a),d=a.getRelativeToSurfaceXY();c.setAttribute("x",Math.round(a.workspace.RTL?b-d.x:d.x));c.setAttribute("y",Math.round(d.y));return c};
-Blockly.Xml.blockToDom=function(a){var b=goog.dom.createDom(a.isShadow()?"shadow":"block");b.setAttribute("type",a.type);b.setAttribute("id",a.id);if(a.mutationToDom){var c=a.mutationToDom();c&&(c.hasChildNodes()||c.hasAttributes())&&b.appendChild(c)}for(var c=0,d;d=a.inputList[c];c++)for(var f=0,g;g=d.fieldRow[f];f++)if(g.name&&g.EDITABLE){var h=goog.dom.createDom("field",null,g.getValue());h.setAttribute("name",g.name);b.appendChild(h)}if(c=a.getCommentText())c=goog.dom.createDom("comment",null,
-c),"object"==typeof a.comment&&(c.setAttribute("pinned",a.comment.isVisible()),d=a.comment.getBubbleSize(),c.setAttribute("h",d.height),c.setAttribute("w",d.width)),b.appendChild(c);a.data&&(c=goog.dom.createDom("data",null,a.data),b.appendChild(c));for(c=0;d=a.inputList[c];c++){var k;g=!0;d.type!=Blockly.DUMMY_INPUT&&(h=d.connection.targetBlock(),d.type==Blockly.INPUT_VALUE?k=goog.dom.createDom("value"):d.type==Blockly.NEXT_STATEMENT&&(k=goog.dom.createDom("statement")),f=d.connection.getShadowDom(),
-!f||h&&h.isShadow()||k.appendChild(Blockly.Xml.cloneShadow_(f)),h&&(k.appendChild(Blockly.Xml.blockToDom(h)),g=!1),k.setAttribute("name",d.name),g||b.appendChild(k))}a.inputsInlineDefault!=a.inputsInline&&b.setAttribute("inline",a.inputsInline);a.isCollapsed()&&b.setAttribute("collapsed",!0);a.disabled&&b.setAttribute("disabled",!0);a.isDeletable()||a.isShadow()||b.setAttribute("deletable",!1);a.isMovable()||a.isShadow()||b.setAttribute("movable",!1);a.isEditable()||b.setAttribute("editable",!1);
-if(c=a.getNextBlock())k=goog.dom.createDom("next",null,Blockly.Xml.blockToDom(c)),b.appendChild(k);f=a.nextConnection&&a.nextConnection.getShadowDom();!f||c&&c.isShadow()||k.appendChild(Blockly.Xml.cloneShadow_(f));return b};
+Blockly.Xml.blockToDom=function(a){var b=goog.dom.createDom(a.isShadow()?"shadow":"block");b.setAttribute("type",a.type);b.setAttribute("id",a.id);if(a.mutationToDom){var c=a.mutationToDom();c&&(c.hasChildNodes()||c.hasAttributes())&&b.appendChild(c)}for(var c=0,d;d=a.inputList[c];c++)for(var e=0,f;f=d.fieldRow[e];e++)if(f.name&&f.EDITABLE){var g=goog.dom.createDom("field",null,f.getValue());g.setAttribute("name",f.name);b.appendChild(g)}if(c=a.getCommentText())c=goog.dom.createDom("comment",null,
+c),"object"==typeof a.comment&&(c.setAttribute("pinned",a.comment.isVisible()),d=a.comment.getBubbleSize(),c.setAttribute("h",d.height),c.setAttribute("w",d.width)),b.appendChild(c);a.data&&(c=goog.dom.createDom("data",null,a.data),b.appendChild(c));for(c=0;d=a.inputList[c];c++){var h;f=!0;d.type!=Blockly.DUMMY_INPUT&&(g=d.connection.targetBlock(),d.type==Blockly.INPUT_VALUE?h=goog.dom.createDom("value"):d.type==Blockly.NEXT_STATEMENT&&(h=goog.dom.createDom("statement")),e=d.connection.getShadowDom(),
+!e||g&&g.isShadow()||h.appendChild(Blockly.Xml.cloneShadow_(e)),g&&(h.appendChild(Blockly.Xml.blockToDom(g)),f=!1),h.setAttribute("name",d.name),f||b.appendChild(h))}a.inputsInlineDefault!=a.inputsInline&&b.setAttribute("inline",a.inputsInline);a.isCollapsed()&&b.setAttribute("collapsed",!0);a.disabled&&b.setAttribute("disabled",!0);a.isDeletable()||a.isShadow()||b.setAttribute("deletable",!1);a.isMovable()||a.isShadow()||b.setAttribute("movable",!1);a.isEditable()||b.setAttribute("editable",!1);
+if(c=a.getNextBlock())h=goog.dom.createDom("next",null,Blockly.Xml.blockToDom(c)),b.appendChild(h);e=a.nextConnection&&a.nextConnection.getShadowDom();!e||c&&c.isShadow()||h.appendChild(Blockly.Xml.cloneShadow_(e));return b};
 Blockly.Xml.cloneShadow_=function(a){for(var b=a=a.cloneNode(!0),c;b;)if(b.firstChild)b=b.firstChild;else{for(;b&&!b.nextSibling;)c=b,b=b.parentNode,3==c.nodeType&&""==c.data.trim()&&b.firstChild!=c&&goog.dom.removeNode(c);b&&(c=b,b=b.nextSibling,3==c.nodeType&&""==c.data.trim()&&goog.dom.removeNode(c))}return a};Blockly.Xml.domToText=function(a){return(new XMLSerializer).serializeToString(a)};
 Blockly.Xml.domToPrettyText=function(a){a=Blockly.Xml.domToText(a).split("<");for(var b="",c=1;c<a.length;c++){var d=a[c];"/"==d[0]&&(b=b.substring(2));a[c]=b+"<"+d;"/"!=d[0]&&"/>"!=d.slice(-2)&&(b+="  ")}a=a.join("\n");a=a.replace(/(<(\w+)\b[^>]*>[^\n]*)\n *<\/\2>/g,"$1</$2>");return a.replace(/^\n/,"")};
 Blockly.Xml.textToDom=function(a){a=(new DOMParser).parseFromString(a,"text/xml");if(!a||!a.firstChild||"xml"!=a.firstChild.nodeName.toLowerCase()||a.firstChild!==a.lastChild)throw"Blockly.Xml.textToDom did not obtain a valid XML tree.";return a.firstChild};
-Blockly.Xml.domToWorkspace=function(a,b){if(a instanceof Blockly.Workspace){var c=a;a=b;b=c;console.warn("Deprecated call to Blockly.Xml.domToWorkspace, swap the arguments.")}var d;b.RTL&&(d=b.getWidth());Blockly.Field.startCache();var c=a.childNodes.length,f=Blockly.Events.getGroup();f||Blockly.Events.setGroup(!0);for(var g=0;g<c;g++){var h=a.childNodes[g],k=h.nodeName.toLowerCase();if("block"==k||"shadow"==k){var k=Blockly.Xml.domToBlock(h,b),l=parseInt(h.getAttribute("x"),10),h=parseInt(h.getAttribute("y"),
-10);isNaN(l)||isNaN(h)||k.moveBy(b.RTL?d-l:l,h)}}f||Blockly.Events.setGroup(!1);Blockly.Field.stopCache()};
-Blockly.Xml.domToBlock=function(a,b){if(a instanceof Blockly.Workspace){var c=a;a=b;b=c;console.warn("Deprecated call to Blockly.Xml.domToBlock, swap the arguments.")}Blockly.Events.disable();var d=Blockly.Xml.domToBlockHeadless_(a,b);if(b.rendered){d.setConnectionsHidden(!0);for(var c=d.getDescendants(),f=c.length-1;0<=f;f--)c[f].initSvg();for(f=c.length-1;0<=f;f--)c[f].render(!1);setTimeout(function(){d.workspace&&d.setConnectionsHidden(!1)},1);d.updateDisabled();Blockly.fireUiEvent(window,"resize")}Blockly.Events.enable();
+Blockly.Xml.domToWorkspace=function(a,b){if(a instanceof Blockly.Workspace){var c=a;a=b;b=c;console.warn("Deprecated call to Blockly.Xml.domToWorkspace, swap the arguments.")}var d;b.RTL&&(d=b.getWidth());Blockly.Field.startCache();var c=a.childNodes.length,e=Blockly.Events.getGroup();e||Blockly.Events.setGroup(!0);for(var f=0;f<c;f++){var g=a.childNodes[f],h=g.nodeName.toLowerCase();if("block"==h||"shadow"==h){var h=Blockly.Xml.domToBlock(g,b),k=parseInt(g.getAttribute("x"),10),g=parseInt(g.getAttribute("y"),
+10);isNaN(k)||isNaN(g)||h.moveBy(b.RTL?d-k:k,g)}}e||Blockly.Events.setGroup(!1);Blockly.Field.stopCache()};
+Blockly.Xml.domToBlock=function(a,b){if(a instanceof Blockly.Workspace){var c=a;a=b;b=c;console.warn("Deprecated call to Blockly.Xml.domToBlock, swap the arguments.")}Blockly.Events.disable();var d=Blockly.Xml.domToBlockHeadless_(a,b);if(b.rendered){d.setConnectionsHidden(!0);for(var c=d.getDescendants(),e=c.length-1;0<=e;e--)c[e].initSvg();for(e=c.length-1;0<=e;e--)c[e].render(!1);setTimeout(function(){d.workspace&&d.setConnectionsHidden(!1)},1);d.updateDisabled();Blockly.fireUiEvent(window,"resize")}Blockly.Events.enable();
 Blockly.Events.isEnabled()&&Blockly.Events.fire(new Blockly.Events.Create(d));return d};
-Blockly.Xml.domToBlockHeadless_=function(a,b){var c=null,d=a.getAttribute("type");if(!d)throw"Block type unspecified: \n"+a.outerHTML;for(var f=a.getAttribute("id"),c=b.newBlock(d,f),g=null,f=0,h;h=a.childNodes[f];f++)if(3!=h.nodeType){for(var k=g=null,l=0,m;m=h.childNodes[l];l++)1==m.nodeType&&("block"==m.nodeName.toLowerCase()?g=m:"shadow"==m.nodeName.toLowerCase()&&(k=m));!g&&k&&(g=k);l=h.getAttribute("name");switch(h.nodeName.toLowerCase()){case "mutation":c.domToMutation&&(c.domToMutation(h),
-c.initSvg&&c.initSvg());break;case "comment":c.setCommentText(h.textContent);var r=h.getAttribute("pinned");r&&!c.isInFlyout&&setTimeout(function(){c.comment&&c.comment.setVisible&&c.comment.setVisible("true"==r)},1);g=parseInt(h.getAttribute("w"),10);h=parseInt(h.getAttribute("h"),10);!isNaN(g)&&!isNaN(h)&&c.comment&&c.comment.setVisible&&c.comment.setBubbleSize(g,h);break;case "data":c.data=h.textContent;break;case "title":case "field":g=c.getField(l);if(!g){console.warn("Ignoring non-existent field "+
-l+" in block "+d);break}g.setValue(h.textContent);break;case "value":case "statement":h=c.getInput(l);if(!h){console.warn("Ignoring non-existent input "+l+" in block "+d);break}k&&h.connection.setShadowDom(k);if(g)if(g=Blockly.Xml.domToBlockHeadless_(g,b),g.outputConnection)h.connection.connect(g.outputConnection);else if(g.previousConnection)h.connection.connect(g.previousConnection);else throw"Child block does not have output or previous statement.";break;case "next":k&&c.nextConnection&&c.nextConnection.setShadowDom(k);
-if(g){if(!c.nextConnection)throw"Next statement does not exist.";if(c.nextConnection.isConnected())throw"Next statement is already connected.";g=Blockly.Xml.domToBlockHeadless_(g,b);if(!g.previousConnection)throw"Next block does not have previous statement.";c.nextConnection.connect(g.previousConnection)}break;default:console.warn("Ignoring unknown tag: "+h.nodeName)}}(d=a.getAttribute("inline"))&&c.setInputsInline("true"==d);(d=a.getAttribute("disabled"))&&c.setDisabled("true"==d);(d=a.getAttribute("deletable"))&&
+Blockly.Xml.domToBlockHeadless_=function(a,b){var c=null,d=a.getAttribute("type");if(!d)throw"Block type unspecified: \n"+a.outerHTML;for(var e=a.getAttribute("id"),c=b.newBlock(d,e),f=null,e=0,g;g=a.childNodes[e];e++)if(3!=g.nodeType){for(var h=f=null,k=0,l;l=g.childNodes[k];k++)1==l.nodeType&&("block"==l.nodeName.toLowerCase()?f=l:"shadow"==l.nodeName.toLowerCase()&&(h=l));!f&&h&&(f=h);k=g.getAttribute("name");switch(g.nodeName.toLowerCase()){case "mutation":c.domToMutation&&(c.domToMutation(g),
+c.initSvg&&c.initSvg());break;case "comment":c.setCommentText(g.textContent);var q=g.getAttribute("pinned");q&&!c.isInFlyout&&setTimeout(function(){c.comment&&c.comment.setVisible&&c.comment.setVisible("true"==q)},1);f=parseInt(g.getAttribute("w"),10);g=parseInt(g.getAttribute("h"),10);!isNaN(f)&&!isNaN(g)&&c.comment&&c.comment.setVisible&&c.comment.setBubbleSize(f,g);break;case "data":c.data=g.textContent;break;case "title":case "field":f=c.getField(k);if(!f){console.warn("Ignoring non-existent field "+
+k+" in block "+d);break}f.setValue(g.textContent);break;case "value":case "statement":g=c.getInput(k);if(!g){console.warn("Ignoring non-existent input "+k+" in block "+d);break}h&&g.connection.setShadowDom(h);if(f)if(f=Blockly.Xml.domToBlockHeadless_(f,b),f.outputConnection)g.connection.connect(f.outputConnection);else if(f.previousConnection)g.connection.connect(f.previousConnection);else throw"Child block does not have output or previous statement.";break;case "next":h&&c.nextConnection&&c.nextConnection.setShadowDom(h);
+if(f){if(!c.nextConnection)throw"Next statement does not exist.";if(c.nextConnection.isConnected())throw"Next statement is already connected.";f=Blockly.Xml.domToBlockHeadless_(f,b);if(!f.previousConnection)throw"Next block does not have previous statement.";c.nextConnection.connect(f.previousConnection)}break;default:console.warn("Ignoring unknown tag: "+g.nodeName)}}(d=a.getAttribute("inline"))&&c.setInputsInline("true"==d);(d=a.getAttribute("disabled"))&&c.setDisabled("true"==d);(d=a.getAttribute("deletable"))&&
 c.setDeletable("true"==d);(d=a.getAttribute("movable"))&&c.setMovable("true"==d);(d=a.getAttribute("editable"))&&c.setEditable("true"==d);(d=a.getAttribute("collapsed"))&&c.setCollapsed("true"==d);"shadow"==a.nodeName.toLowerCase()&&c.setShadow(!0);c.validate&&c.validate();return c};Blockly.Xml.deleteNext=function(a){for(var b=0,c;c=a.childNodes[b];b++)if("next"==c.nodeName.toLowerCase()){a.removeChild(c);break}};goog.global.Blockly||(goog.global.Blockly={});
 goog.global.Blockly.Xml||(goog.global.Blockly.Xml={});goog.global.Blockly.Xml.domToText=Blockly.Xml.domToText;goog.global.Blockly.Xml.domToWorkspace=Blockly.Xml.domToWorkspace;goog.global.Blockly.Xml.textToDom=Blockly.Xml.textToDom;goog.global.Blockly.Xml.workspaceToDom=Blockly.Xml.workspaceToDom;
 // Copyright 2015 Google Inc.  Apache License 2.0
 Blockly.ZoomControls=function(a){this.workspace_=a};Blockly.ZoomControls.prototype.WIDTH_=32;Blockly.ZoomControls.prototype.HEIGHT_=110;Blockly.ZoomControls.prototype.MARGIN_BOTTOM_=20;Blockly.ZoomControls.prototype.MARGIN_SIDE_=20;Blockly.ZoomControls.prototype.svgGroup_=null;Blockly.ZoomControls.prototype.left_=0;Blockly.ZoomControls.prototype.top_=0;
 Blockly.ZoomControls.prototype.createDom=function(){var a=this.workspace_;this.svgGroup_=Blockly.createSvgElement("g",{"class":"blocklyZoom"},null);var b=String(Math.random()).substring(2),c=Blockly.createSvgElement("clipPath",{id:"blocklyZoomoutClipPath"+b},this.svgGroup_);Blockly.createSvgElement("rect",{width:32,height:32,y:77},c);var d=Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,x:-64,y:-15,"clip-path":"url(#blocklyZoomoutClipPath"+b+")"},this.svgGroup_);
-d.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+Blockly.SPRITE.url);c=Blockly.createSvgElement("clipPath",{id:"blocklyZoominClipPath"+b},this.svgGroup_);Blockly.createSvgElement("rect",{width:32,height:32,y:43},c);var f=Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,x:-32,y:-49,"clip-path":"url(#blocklyZoominClipPath"+b+")"},this.svgGroup_);f.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+
-Blockly.SPRITE.url);c=Blockly.createSvgElement("clipPath",{id:"blocklyZoomresetClipPath"+b},this.svgGroup_);Blockly.createSvgElement("rect",{width:32,height:32},c);b=Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,y:-92,"clip-path":"url(#blocklyZoomresetClipPath"+b+")"},this.svgGroup_);b.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEvent_(b,"mousedown",a,a.zoomReset);Blockly.bindEvent_(f,
+d.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+Blockly.SPRITE.url);c=Blockly.createSvgElement("clipPath",{id:"blocklyZoominClipPath"+b},this.svgGroup_);Blockly.createSvgElement("rect",{width:32,height:32,y:43},c);var e=Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,x:-32,y:-49,"clip-path":"url(#blocklyZoominClipPath"+b+")"},this.svgGroup_);e.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+
+Blockly.SPRITE.url);c=Blockly.createSvgElement("clipPath",{id:"blocklyZoomresetClipPath"+b},this.svgGroup_);Blockly.createSvgElement("rect",{width:32,height:32},c);b=Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,y:-92,"clip-path":"url(#blocklyZoomresetClipPath"+b+")"},this.svgGroup_);b.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEvent_(b,"mousedown",a,a.zoomReset);Blockly.bindEvent_(e,
 "mousedown",null,function(b){a.zoomCenter(1);b.stopPropagation();b.preventDefault()});Blockly.bindEvent_(d,"mousedown",null,function(b){a.zoomCenter(-1);b.stopPropagation();b.preventDefault()});return this.svgGroup_};Blockly.ZoomControls.prototype.init=function(a){this.bottom_=this.MARGIN_BOTTOM_+a;return this.bottom_+this.HEIGHT_};Blockly.ZoomControls.prototype.dispose=function(){this.svgGroup_&&(goog.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.workspace_=null};
 Blockly.ZoomControls.prototype.position=function(){var a=this.workspace_.getMetrics();a&&(this.left_=this.workspace_.RTL?this.MARGIN_SIDE_+Blockly.Scrollbar.scrollbarThickness:a.viewWidth+a.absoluteLeft-this.WIDTH_-this.MARGIN_SIDE_-Blockly.Scrollbar.scrollbarThickness,this.top_=a.viewHeight+a.absoluteTop-this.HEIGHT_-this.bottom_,this.svgGroup_.setAttribute("transform","translate("+this.left_+","+this.top_+")"))};
 // Copyright 2014 Google Inc.  Apache License 2.0
 Blockly.WorkspaceSvg=function(a){Blockly.WorkspaceSvg.superClass_.constructor.call(this,a);this.getMetrics=a.getMetrics;this.setMetrics=a.setMetrics;Blockly.ConnectionDB.init(this);this.SOUNDS_=Object.create(null)};goog.inherits(Blockly.WorkspaceSvg,Blockly.Workspace);Blockly.WorkspaceSvg.prototype.rendered=!0;Blockly.WorkspaceSvg.prototype.isFlyout=!1;Blockly.WorkspaceSvg.prototype.isScrolling=!1;Blockly.WorkspaceSvg.prototype.scrollX=0;Blockly.WorkspaceSvg.prototype.scrollY=0;
-Blockly.WorkspaceSvg.prototype.startScrollX=0;Blockly.WorkspaceSvg.prototype.startScrollY=0;Blockly.WorkspaceSvg.prototype.dragDeltaX_=0;Blockly.WorkspaceSvg.prototype.dragDeltaY_=0;Blockly.WorkspaceSvg.prototype.scale=1;Blockly.WorkspaceSvg.prototype.trashcan=null;Blockly.WorkspaceSvg.prototype.scrollbar=null;
+Blockly.WorkspaceSvg.prototype.startScrollX=0;Blockly.WorkspaceSvg.prototype.startScrollY=0;Blockly.WorkspaceSvg.prototype.dragDeltaXY_=null;Blockly.WorkspaceSvg.prototype.scale=1;Blockly.WorkspaceSvg.prototype.trashcan=null;Blockly.WorkspaceSvg.prototype.scrollbar=null;
 Blockly.WorkspaceSvg.prototype.createDom=function(a){this.svgGroup_=Blockly.createSvgElement("g",{"class":"blocklyWorkspace"},null);a&&(this.svgBackground_=Blockly.createSvgElement("rect",{height:"100%",width:"100%","class":a},this.svgGroup_),"blocklyMainBackground"==a&&(this.svgBackground_.style.fill="url(#"+this.options.gridPattern.id+")"));this.svgBlockCanvas_=Blockly.createSvgElement("g",{"class":"blocklyBlockCanvas"},this.svgGroup_,this);this.svgBubbleCanvas_=Blockly.createSvgElement("g",{"class":"blocklyBubbleCanvas"},
 this.svgGroup_,this);a=Blockly.Scrollbar.scrollbarThickness;this.options.hasTrashcan&&(a=this.addTrashcan_(a));this.options.zoomOptions&&this.options.zoomOptions.controls&&(a=this.addZoomControls_(a));Blockly.bindEvent_(this.svgGroup_,"mousedown",this,this.onMouseDown_);var b=this;Blockly.bindEvent_(this.svgGroup_,"touchstart",null,function(a){Blockly.longStart_(a,b)});this.options.zoomOptions&&this.options.zoomOptions.wheel&&Blockly.bindEvent_(this.svgGroup_,"wheel",this,this.onMouseWheel_);this.options.hasCategories?
 this.toolbox_=new Blockly.Toolbox(this):this.options.languageTree&&this.addFlyout_();this.updateGridPattern_();return this.svgGroup_};
@@ -1029,45 +1028,45 @@ Blockly.WorkspaceSvg.prototype.getParentSvg=function(){if(this.cachedParentSvg_)
 Blockly.WorkspaceSvg.prototype.getWidth=function(){var a=this.getMetrics();return a?a.viewWidth/this.scale:0};Blockly.WorkspaceSvg.prototype.setVisible=function(a){this.getParentSvg().style.display=a?"block":"none";this.toolbox_&&(this.toolbox_.HtmlDiv.style.display=a?"block":"none");a?(this.render(),this.toolbox_&&this.toolbox_.position()):Blockly.hideChaff(!0)};Blockly.WorkspaceSvg.prototype.render=function(){for(var a=this.getAllBlocks(),b=a.length-1;0<=b;b--)a[b].render(!1)};
 Blockly.WorkspaceSvg.prototype.traceOn=function(a){this.traceOn_=a;this.traceWrapper_&&(Blockly.unbindEvent_(this.traceWrapper_),this.traceWrapper_=null);a&&(this.traceWrapper_=Blockly.bindEvent_(this.svgBlockCanvas_,"blocklySelectChange",this,function(){this.traceOn_=!1}))};
 Blockly.WorkspaceSvg.prototype.highlightBlock=function(a){this.traceOn_&&Blockly.dragMode_!=Blockly.DRAG_NONE&&this.traceOn(!1);if(this.traceOn_){var b=null;if(a&&(b=this.getBlockById(a),!b))return;this.traceOn(!1);b?b.select():Blockly.selected&&Blockly.selected.unselect();var c=this;setTimeout(function(){c.traceOn(!0)},1)}};
-Blockly.WorkspaceSvg.prototype.paste=function(a){if(this.rendered&&!(a.getElementsByTagName("block").length>=this.remainingCapacity())){Blockly.terminateDrag_();Blockly.Events.disable();var b=Blockly.Xml.domToBlock(a,this),c=parseInt(a.getAttribute("x"),10);a=parseInt(a.getAttribute("y"),10);if(!isNaN(c)&&!isNaN(a)){this.RTL&&(c=-c);do{for(var d=!1,f=this.getAllBlocks(),g=0,h;h=f[g];g++)if(h=h.getRelativeToSurfaceXY(),1>=Math.abs(c-h.x)&&1>=Math.abs(a-h.y)){d=!0;break}if(!d)for(f=b.getConnections_(!1),
-g=0;h=f[g];g++)if(h.closest(Blockly.SNAP_RADIUS,c,a).connection){d=!0;break}d&&(c=this.RTL?c-Blockly.SNAP_RADIUS:c+Blockly.SNAP_RADIUS,a+=2*Blockly.SNAP_RADIUS)}while(d);b.moveBy(c,a)}Blockly.Events.enable();Blockly.Events.isEnabled()&&!b.isShadow()&&Blockly.Events.fire(new Blockly.Events.Create(b));b.select()}};
+Blockly.WorkspaceSvg.prototype.paste=function(a){if(this.rendered&&!(a.getElementsByTagName("block").length>=this.remainingCapacity())){Blockly.terminateDrag_();Blockly.Events.disable();var b=Blockly.Xml.domToBlock(a,this),c=parseInt(a.getAttribute("x"),10);a=parseInt(a.getAttribute("y"),10);if(!isNaN(c)&&!isNaN(a)){this.RTL&&(c=-c);do{for(var d=!1,e=this.getAllBlocks(),f=0,g;g=e[f];f++)if(g=g.getRelativeToSurfaceXY(),1>=Math.abs(c-g.x)&&1>=Math.abs(a-g.y)){d=!0;break}if(!d)for(e=b.getConnections_(!1),
+f=0;g=e[f];f++)if(g.closest(Blockly.SNAP_RADIUS,new goog.math.Coordinate(c,a)).connection){d=!0;break}d&&(c=this.RTL?c-Blockly.SNAP_RADIUS:c+Blockly.SNAP_RADIUS,a+=2*Blockly.SNAP_RADIUS)}while(d);b.moveBy(c,a)}Blockly.Events.enable();Blockly.Events.isEnabled()&&!b.isShadow()&&Blockly.Events.fire(new Blockly.Events.Create(b));b.select()}};
 Blockly.WorkspaceSvg.prototype.recordDeleteAreas=function(){this.deleteAreaTrash_=this.trashcan?this.trashcan.getClientRect():null;this.deleteAreaToolbox_=this.flyout_?this.flyout_.getClientRect():this.toolbox_?this.toolbox_.getClientRect():null};
 Blockly.WorkspaceSvg.prototype.isDeleteArea=function(a){a=new goog.math.Coordinate(a.clientX,a.clientY);if(this.deleteAreaTrash_){if(this.deleteAreaTrash_.contains(a))return this.trashcan.setOpen_(!0),Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE),!0;this.trashcan.setOpen_(!1)}if(this.deleteAreaToolbox_&&this.deleteAreaToolbox_.contains(a))return Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE),!0;Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);return!1};
 Blockly.WorkspaceSvg.prototype.onMouseDown_=function(a){this.markFocused();Blockly.setPageSelectable(!1);Blockly.isTargetInput_(a)||(Blockly.svgResize(this),Blockly.terminateDrag_(),Blockly.hideChaff(),a.target&&a.target.nodeName&&("svg"==a.target.nodeName.toLowerCase()||a.target==this.svgBackground_)&&Blockly.selected&&!this.options.readOnly&&Blockly.selected.unselect(),Blockly.isRightButton(a)?this.showContextMenu_(a):this.scrollbar&&(this.isScrolling=!0,this.startDragMouseX=a.clientX,this.startDragMouseY=
 a.clientY,this.startDragMetrics=this.getMetrics(),this.startScrollX=this.scrollX,this.startScrollY=this.scrollY,"mouseup"in Blockly.bindEvent_.TOUCH_MAP&&(Blockly.onTouchUpWrapper_=Blockly.onTouchUpWrapper_||[],Blockly.onTouchUpWrapper_=Blockly.onTouchUpWrapper_.concat(Blockly.bindEvent_(document,"mouseup",null,Blockly.onMouseUp_))),Blockly.onMouseMoveWrapper_=Blockly.onMouseMoveWrapper_||[],Blockly.onMouseMoveWrapper_=Blockly.onMouseMoveWrapper_.concat(Blockly.bindEvent_(document,"mousemove",null,
-Blockly.onMouseMove_))),a.stopPropagation())};Blockly.WorkspaceSvg.prototype.startDrag=function(a,b,c){a=Blockly.mouseToSvg(a,this.getParentSvg());a.x/=this.scale;a.y/=this.scale;this.dragDeltaX_=b-a.x;this.dragDeltaY_=c-a.y};Blockly.WorkspaceSvg.prototype.moveDrag=function(a){a=Blockly.mouseToSvg(a,this.getParentSvg());a.x/=this.scale;a.y/=this.scale;return new goog.math.Coordinate(this.dragDeltaX_+a.x,this.dragDeltaY_+a.y)};
+Blockly.onMouseMove_))),a.stopPropagation())};Blockly.WorkspaceSvg.prototype.startDrag=function(a,b){var c=Blockly.mouseToSvg(a,this.getParentSvg());c.x/=this.scale;c.y/=this.scale;this.dragDeltaXY_=goog.math.Coordinate.difference(b,c)};Blockly.WorkspaceSvg.prototype.moveDrag=function(a){a=Blockly.mouseToSvg(a,this.getParentSvg());a.x/=this.scale;a.y/=this.scale;return goog.math.Coordinate.sum(this.dragDeltaXY_,a)};
 Blockly.WorkspaceSvg.prototype.onMouseWheel_=function(a){Blockly.terminateDrag_();var b=0<a.deltaY?-1:1,c=Blockly.mouseToSvg(a,this.getParentSvg());this.zoom(c.x,c.y,b);a.preventDefault()};
 Blockly.WorkspaceSvg.prototype.getBlocksBoundingBox=function(){var a=this.getTopBlocks();if(!a.length)return{x:0,y:0,width:0,height:0};for(var b=a[0].getBoundingRectangle(),c=1;c<a.length;c++){var d=a[c].getBoundingRectangle();d.topLeft.x<b.topLeft.x&&(b.topLeft.x=d.topLeft.x);d.bottomRight.x>b.bottomRight.x&&(b.bottomRight.x=d.bottomRight.x);d.topLeft.y<b.topLeft.y&&(b.topLeft.y=d.topLeft.y);d.bottomRight.y>b.bottomRight.y&&(b.bottomRight.y=d.bottomRight.y)}return{x:b.topLeft.x,y:b.topLeft.y,width:b.bottomRight.x-
-b.topLeft.x,height:b.bottomRight.y-b.topLeft.y}};Blockly.WorkspaceSvg.prototype.cleanUp_=function(){Blockly.Events.setGroup(!0);for(var a=this.getTopBlocks(!0),b=0,c=0,d;d=a[c];c++){var f=d.getRelativeToSurfaceXY();d.moveBy(-f.x,b-f.y);d.snapToGrid();b=d.getRelativeToSurfaceXY().y+d.getHeightWidth().height+Blockly.BlockSvg.MIN_BLOCK_Y}Blockly.Events.setGroup(!1);Blockly.fireUiEvent(window,"resize")};
-Blockly.WorkspaceSvg.prototype.showContextMenu_=function(a){function b(a){if(a.isDeletable())n=n.concat(a.getDescendants());else{a=a.getChildren();for(var c=0;c<a.length;c++)b(a[c])}}function c(){Blockly.Events.setGroup(g);var a=n.shift();a&&(a.workspace?(a.dispose(!1,!0),setTimeout(c,10)):c());Blockly.Events.setGroup(!1)}if(!this.options.readOnly&&!this.isFlyout){var d=[],f=this.getTopBlocks(!0),g=Blockly.genUid(),h={};h.text=Blockly.Msg.UNDO;h.enabled=0<this.undoStack_.length;h.callback=this.undo.bind(this,
-!1);d.push(h);h={};h.text=Blockly.Msg.REDO;h.enabled=0<this.redoStack_.length;h.callback=this.undo.bind(this,!0);d.push(h);this.scrollbar&&(h={},h.text=Blockly.Msg.CLEAN_UP,h.enabled=1<f.length,h.callback=this.cleanUp_.bind(this),d.push(h));if(this.options.collapse){for(var k=h=!1,l=0;l<f.length;l++)for(var m=f[l];m;)m.isCollapsed()?h=!0:k=!0,m=m.getNextBlock();var r=function(a){for(var b=0,c=0;c<f.length;c++)for(var d=f[c];d;)setTimeout(d.setCollapsed.bind(d,a),b),d=d.getNextBlock(),b+=10},k={enabled:k};
-k.text=Blockly.Msg.COLLAPSE_ALL;k.callback=function(){r(!0)};d.push(k);h={enabled:h};h.text=Blockly.Msg.EXPAND_ALL;h.callback=function(){r(!1)};d.push(h)}for(var n=[],l=0;l<f.length;l++)b(f[l]);h={text:1==n.length?Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(n.length)),enabled:0<n.length,callback:function(){(2>n.length||window.confirm(Blockly.Msg.DELETE_ALL_BLOCKS.replace("%1",String(n.length))))&&c()}};d.push(h);Blockly.ContextMenu.show(a,d,this.RTL)}};
-Blockly.WorkspaceSvg.prototype.loadAudio_=function(a,b){if(a.length){try{var c=new window.Audio}catch(k){return}for(var d,f=0;f<a.length;f++){var g=a[f],h=g.match(/\.(\w+)$/);if(h&&c.canPlayType("audio/"+h[1])){d=new window.Audio(g);break}}d&&d.play&&(this.SOUNDS_[b]=d)}};Blockly.WorkspaceSvg.prototype.preloadAudio_=function(){for(var a in this.SOUNDS_){var b=this.SOUNDS_[a];b.volume=.01;b.play();b.pause();if(goog.userAgent.IPAD||goog.userAgent.IPHONE)break}};
+b.topLeft.x,height:b.bottomRight.y-b.topLeft.y}};Blockly.WorkspaceSvg.prototype.cleanUp_=function(){Blockly.Events.setGroup(!0);for(var a=this.getTopBlocks(!0),b=0,c=0,d;d=a[c];c++){var e=d.getRelativeToSurfaceXY();d.moveBy(-e.x,b-e.y);d.snapToGrid();b=d.getRelativeToSurfaceXY().y+d.getHeightWidth().height+Blockly.BlockSvg.MIN_BLOCK_Y}Blockly.Events.setGroup(!1);Blockly.fireUiEvent(window,"resize")};
+Blockly.WorkspaceSvg.prototype.showContextMenu_=function(a){function b(a){if(a.isDeletable())m=m.concat(a.getDescendants());else{a=a.getChildren();for(var c=0;c<a.length;c++)b(a[c])}}function c(){Blockly.Events.setGroup(f);var a=m.shift();a&&(a.workspace?(a.dispose(!1,!0),setTimeout(c,10)):c());Blockly.Events.setGroup(!1)}if(!this.options.readOnly&&!this.isFlyout){var d=[],e=this.getTopBlocks(!0),f=Blockly.genUid(),g={};g.text=Blockly.Msg.UNDO;g.enabled=0<this.undoStack_.length;g.callback=this.undo.bind(this,
+!1);d.push(g);g={};g.text=Blockly.Msg.REDO;g.enabled=0<this.redoStack_.length;g.callback=this.undo.bind(this,!0);d.push(g);this.scrollbar&&(g={},g.text=Blockly.Msg.CLEAN_UP,g.enabled=1<e.length,g.callback=this.cleanUp_.bind(this),d.push(g));if(this.options.collapse){for(var h=g=!1,k=0;k<e.length;k++)for(var l=e[k];l;)l.isCollapsed()?g=!0:h=!0,l=l.getNextBlock();var q=function(a){for(var b=0,c=0;c<e.length;c++)for(var d=e[c];d;)setTimeout(d.setCollapsed.bind(d,a),b),d=d.getNextBlock(),b+=10},h={enabled:h};
+h.text=Blockly.Msg.COLLAPSE_ALL;h.callback=function(){q(!0)};d.push(h);g={enabled:g};g.text=Blockly.Msg.EXPAND_ALL;g.callback=function(){q(!1)};d.push(g)}for(var m=[],k=0;k<e.length;k++)b(e[k]);g={text:1==m.length?Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(m.length)),enabled:0<m.length,callback:function(){(2>m.length||window.confirm(Blockly.Msg.DELETE_ALL_BLOCKS.replace("%1",String(m.length))))&&c()}};d.push(g);Blockly.ContextMenu.show(a,d,this.RTL)}};
+Blockly.WorkspaceSvg.prototype.loadAudio_=function(a,b){if(a.length){try{var c=new window.Audio}catch(h){return}for(var d,e=0;e<a.length;e++){var f=a[e],g=f.match(/\.(\w+)$/);if(g&&c.canPlayType("audio/"+g[1])){d=new window.Audio(f);break}}d&&d.play&&(this.SOUNDS_[b]=d)}};Blockly.WorkspaceSvg.prototype.preloadAudio_=function(){for(var a in this.SOUNDS_){var b=this.SOUNDS_[a];b.volume=.01;b.play();b.pause();if(goog.userAgent.IPAD||goog.userAgent.IPHONE)break}};
 Blockly.WorkspaceSvg.prototype.playAudio=function(a,b){var c=this.SOUNDS_[a];c?(c=goog.userAgent.DOCUMENT_MODE&&9===goog.userAgent.DOCUMENT_MODE||goog.userAgent.IPAD||goog.userAgent.ANDROID?c:c.cloneNode(),c.volume=void 0===b?1:b,c.play()):this.options.parentWorkspace&&this.options.parentWorkspace.playAudio(a,b)};
 Blockly.WorkspaceSvg.prototype.updateToolbox=function(a){if(a=Blockly.Options.parseToolboxTree(a)){if(!this.options.languageTree)throw"Existing toolbox is null.  Can't create new toolbox.";if(a.getElementsByTagName("category").length){if(!this.toolbox_)throw"Existing toolbox has no categories.  Can't change mode.";this.options.languageTree=a;this.toolbox_.populate_(a);this.toolbox_.addColour_()}else{if(!this.flyout_)throw"Existing toolbox has categories.  Can't change mode.";this.options.languageTree=
 a;this.flyout_.show(a.childNodes)}}else if(this.options.languageTree)throw"Can't nullify an existing toolbox.";};Blockly.WorkspaceSvg.prototype.markFocused=function(){this.options.parentWorkspace?this.options.parentWorkspace.markFocused():Blockly.mainWorkspace=this};
-Blockly.WorkspaceSvg.prototype.zoom=function(a,b,c){var d=this.options.zoomOptions.scaleSpeed,f=this.getMetrics(),g=this.getParentSvg().createSVGPoint();g.x=a;g.y=b;g=g.matrixTransform(this.getCanvas().getCTM().inverse());a=g.x;b=g.y;g=this.getCanvas();d=1==c?d:1/d;c=this.scale*d;c>this.options.zoomOptions.maxScale?d=this.options.zoomOptions.maxScale/this.scale:c<this.options.zoomOptions.minScale&&(d=this.options.zoomOptions.minScale/this.scale);this.scale!=c&&(this.scrollbar&&(a=g.getCTM().translate(a*
-(1-d),b*(1-d)).scale(d),this.scrollX=a.e-f.absoluteLeft,this.scrollY=a.f-f.absoluteTop),this.setScale(c))};Blockly.WorkspaceSvg.prototype.zoomCenter=function(a){var b=this.getMetrics();this.zoom(b.viewWidth/2,b.viewHeight/2,a)};
-Blockly.WorkspaceSvg.prototype.zoomToFit=function(){var a=this.getMetrics(),b=this.getBlocksBoundingBox(),c=b.width,b=b.height;if(c){var d=a.viewWidth,f=a.viewHeight;this.flyout_&&(d-=this.flyout_.width_);this.scrollbar||(c+=a.contentLeft,b+=a.contentTop);this.setScale(Math.min(d/c,f/b));this.scrollCenter_()}};Blockly.WorkspaceSvg.prototype.zoomReset=function(a){this.setScale(1);this.scrollCenter_();a.stopPropagation()};
+Blockly.WorkspaceSvg.prototype.zoom=function(a,b,c){var d=this.options.zoomOptions.scaleSpeed,e=this.getMetrics(),f=this.getParentSvg().createSVGPoint();f.x=a;f.y=b;f=f.matrixTransform(this.getCanvas().getCTM().inverse());a=f.x;b=f.y;f=this.getCanvas();d=1==c?d:1/d;c=this.scale*d;c>this.options.zoomOptions.maxScale?d=this.options.zoomOptions.maxScale/this.scale:c<this.options.zoomOptions.minScale&&(d=this.options.zoomOptions.minScale/this.scale);this.scale!=c&&(this.scrollbar&&(a=f.getCTM().translate(a*
+(1-d),b*(1-d)).scale(d),this.scrollX=a.e-e.absoluteLeft,this.scrollY=a.f-e.absoluteTop),this.setScale(c))};Blockly.WorkspaceSvg.prototype.zoomCenter=function(a){var b=this.getMetrics();this.zoom(b.viewWidth/2,b.viewHeight/2,a)};
+Blockly.WorkspaceSvg.prototype.zoomToFit=function(){var a=this.getMetrics(),b=this.getBlocksBoundingBox(),c=b.width,b=b.height;if(c){var d=a.viewWidth,e=a.viewHeight;this.flyout_&&(d-=this.flyout_.width_);this.scrollbar||(c+=a.contentLeft,b+=a.contentTop);this.setScale(Math.min(d/c,e/b));this.scrollCenter_()}};Blockly.WorkspaceSvg.prototype.zoomReset=function(a){this.setScale(1);this.scrollCenter_();a.stopPropagation();a.preventDefault()};
 Blockly.WorkspaceSvg.prototype.scrollCenter_=function(){if(this.scrollbar){var a=this.getMetrics(),b=(a.contentWidth-a.viewWidth)/2;this.flyout_&&(b-=this.flyout_.width_/2);this.scrollbar.set(b,(a.contentHeight-a.viewHeight)/2)}};
-Blockly.WorkspaceSvg.prototype.setScale=function(a){this.options.zoomOptions.maxScale&&a>this.options.zoomOptions.maxScale?a=this.options.zoomOptions.maxScale:this.options.zoomOptions.minScale&&a<this.options.zoomOptions.minScale&&(a=this.options.zoomOptions.minScale);this.scale=a;this.updateGridPattern_();this.scrollbar?this.scrollbar.resize():this.translate(this.scrollX,this.scrollY);Blockly.hideChaff(!1);this.flyout_&&this.flyout_.reflow();e.stopPropagation();e.preventDefault()};
-Blockly.WorkspaceSvg.prototype.updateGridPattern_=function(){if(this.options.gridPattern){var a=this.options.gridOptions.spacing*this.scale||100;this.options.gridPattern.setAttribute("width",a);this.options.gridPattern.setAttribute("height",a);var a=Math.floor(this.options.gridOptions.spacing/2)+.5,b=a-this.options.gridOptions.length/2,c=a+this.options.gridOptions.length/2,d=this.options.gridPattern.firstChild,f=d&&d.nextSibling,a=a*this.scale,b=b*this.scale,c=c*this.scale;d&&(d.setAttribute("stroke-width",
-this.scale),d.setAttribute("x1",b),d.setAttribute("y1",a),d.setAttribute("x2",c),d.setAttribute("y2",a));f&&(f.setAttribute("stroke-width",this.scale),f.setAttribute("x1",a),f.setAttribute("y1",b),f.setAttribute("x2",a),f.setAttribute("y2",c))}};Blockly.WorkspaceSvg.prototype.setVisible=Blockly.WorkspaceSvg.prototype.setVisible;Blockly.Mutator=function(a){Blockly.Mutator.superClass_.constructor.call(this,null);this.quarkNames_=a};goog.inherits(Blockly.Mutator,Blockly.Icon);Blockly.Mutator.prototype.workspaceWidth_=0;Blockly.Mutator.prototype.workspaceHeight_=0;
+Blockly.WorkspaceSvg.prototype.setScale=function(a){this.options.zoomOptions.maxScale&&a>this.options.zoomOptions.maxScale?a=this.options.zoomOptions.maxScale:this.options.zoomOptions.minScale&&a<this.options.zoomOptions.minScale&&(a=this.options.zoomOptions.minScale);this.scale=a;this.updateGridPattern_();this.scrollbar?this.scrollbar.resize():this.translate(this.scrollX,this.scrollY);Blockly.hideChaff(!1);this.flyout_&&this.flyout_.reflow()};
+Blockly.WorkspaceSvg.prototype.updateGridPattern_=function(){if(this.options.gridPattern){var a=this.options.gridOptions.spacing*this.scale||100;this.options.gridPattern.setAttribute("width",a);this.options.gridPattern.setAttribute("height",a);var a=Math.floor(this.options.gridOptions.spacing/2)+.5,b=a-this.options.gridOptions.length/2,c=a+this.options.gridOptions.length/2,d=this.options.gridPattern.firstChild,e=d&&d.nextSibling,a=a*this.scale,b=b*this.scale,c=c*this.scale;d&&(d.setAttribute("stroke-width",
+this.scale),d.setAttribute("x1",b),d.setAttribute("y1",a),d.setAttribute("x2",c),d.setAttribute("y2",a));e&&(e.setAttribute("stroke-width",this.scale),e.setAttribute("x1",a),e.setAttribute("y1",b),e.setAttribute("x2",a),e.setAttribute("y2",c))}};Blockly.WorkspaceSvg.prototype.setVisible=Blockly.WorkspaceSvg.prototype.setVisible;Blockly.Mutator=function(a){Blockly.Mutator.superClass_.constructor.call(this,null);this.quarkNames_=a};goog.inherits(Blockly.Mutator,Blockly.Icon);Blockly.Mutator.prototype.workspaceWidth_=0;Blockly.Mutator.prototype.workspaceHeight_=0;
 Blockly.Mutator.prototype.drawIcon_=function(a){Blockly.createSvgElement("rect",{"class":"blocklyIconShape",rx:"4",ry:"4",height:"16",width:"16"},a);Blockly.createSvgElement("path",{"class":"blocklyIconSymbol",d:"m4.203,7.296 0,1.368 -0.92,0.677 -0.11,0.41 0.9,1.559 0.41,0.11 1.043,-0.457 1.187,0.683 0.127,1.134 0.3,0.3 1.8,0 0.3,-0.299 0.127,-1.138 1.185,-0.682 1.046,0.458 0.409,-0.11 0.9,-1.559 -0.11,-0.41 -0.92,-0.677 0,-1.366 0.92,-0.677 0.11,-0.41 -0.9,-1.559 -0.409,-0.109 -1.046,0.458 -1.185,-0.682 -0.127,-1.138 -0.3,-0.299 -1.8,0 -0.3,0.3 -0.126,1.135 -1.187,0.682 -1.043,-0.457 -0.41,0.11 -0.899,1.559 0.108,0.409z"},a);
 Blockly.createSvgElement("circle",{"class":"blocklyIconShape",r:"2.7",cx:"8",cy:"8"},a)};Blockly.Mutator.prototype.iconClick_=function(a){this.block_.isEditable()&&Blockly.Icon.prototype.iconClick_.call(this,a)};
 Blockly.Mutator.prototype.createEditor_=function(){this.svgDialog_=Blockly.createSvgElement("svg",{x:Blockly.Bubble.BORDER_WIDTH,y:Blockly.Bubble.BORDER_WIDTH},null);if(this.quarkNames_.length)for(var a=goog.dom.createDom("xml"),b=0,c;c=this.quarkNames_[b];b++)a.appendChild(goog.dom.createDom("block",{type:c}));else a=null;a={languageTree:a,parentWorkspace:this.block_.workspace,pathToMedia:this.block_.workspace.options.pathToMedia,RTL:this.block_.RTL,getMetrics:this.getFlyoutMetrics_.bind(this),setMetrics:null};
 this.workspace_=new Blockly.WorkspaceSvg(a);this.svgDialog_.appendChild(this.workspace_.createDom("blocklyMutatorBackground"));return this.svgDialog_};Blockly.Mutator.prototype.updateEditable=function(){this.block_.isEditable()?Blockly.Icon.prototype.updateEditable.call(this):(this.setVisible(!1),this.iconGroup_&&Blockly.addClass_(this.iconGroup_,"blocklyIconGroupReadonly"))};
 Blockly.Mutator.prototype.resizeBubble_=function(){var a=2*Blockly.Bubble.BORDER_WIDTH,b=this.workspace_.getCanvas().getBBox(),c;c=this.block_.RTL?-b.x:b.width+b.x;b=b.height+3*a;if(this.workspace_.flyout_)var d=this.workspace_.flyout_.getMetrics_(),b=Math.max(b,d.contentHeight+20);c+=3*a;if(Math.abs(this.workspaceWidth_-c)>a||Math.abs(this.workspaceHeight_-b)>a)this.workspaceWidth_=c,this.workspaceHeight_=b,this.bubble_.setBubbleSize(c+a,b+a),this.svgDialog_.setAttribute("width",this.workspaceWidth_),
 this.svgDialog_.setAttribute("height",this.workspaceHeight_);this.block_.RTL&&(a="translate("+this.workspaceWidth_+",0)",this.workspace_.getCanvas().setAttribute("transform",a));this.workspace_.resize()};
-Blockly.Mutator.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"mutatorOpen",!a,a)),a){this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconX_,this.iconY_,null,null);if(a=this.workspace_.options.languageTree)this.workspace_.flyout_.init(this.workspace_),this.workspace_.flyout_.show(a.childNodes);this.rootBlock_=this.block_.decompose(this.workspace_);a=this.rootBlock_.getDescendants();
-for(var b=0,c;c=a[b];b++)c.render();this.rootBlock_.setMovable(!1);this.rootBlock_.setDeletable(!1);this.workspace_.flyout_?(a=2*this.workspace_.flyout_.CORNER_RADIUS,b=this.workspace_.flyout_.width_+a):b=a=16;this.block_.RTL&&(b=-b);this.rootBlock_.moveBy(b,a);if(this.block_.saveConnections){var d=this;this.block_.saveConnections(this.rootBlock_);this.sourceListener_=function(){d.block_.saveConnections(d.rootBlock_)};this.block_.workspace.addChangeListener(this.sourceListener_)}this.resizeBubble_();
-this.workspace_.addChangeListener(this.workspaceChanged_.bind(this));this.updateColour()}else this.svgDialog_=null,this.workspace_.dispose(),this.rootBlock_=this.workspace_=null,this.bubble_.dispose(),this.bubble_=null,this.workspaceHeight_=this.workspaceWidth_=0,this.sourceListener_&&(this.block_.workspace.removeChangeListener(this.sourceListener_),this.sourceListener_=null)};
-Blockly.Mutator.prototype.workspaceChanged_=function(){if(Blockly.dragMode_==Blockly.DRAG_NONE)for(var a=this.workspace_.getTopBlocks(!1),b=0,c;c=a[b];b++){var d=c.getRelativeToSurfaceXY(),f=c.getHeightWidth();20>d.y+f.height&&c.moveBy(0,20-f.height-d.y)}if(this.rootBlock_.workspace==this.workspace_){Blockly.Events.setGroup(!0);c=this.block_;a=(a=c.mutationToDom())&&Blockly.Xml.domToText(a);b=c.rendered;c.rendered=!1;c.compose(this.rootBlock_);c.rendered=b;c.initSvg();b=(b=c.mutationToDom())&&Blockly.Xml.domToText(b);
-if(a!=b){Blockly.Events.fire(new Blockly.Events.Change(c,"mutation",null,a,b));var g=Blockly.Events.getGroup();setTimeout(function(){Blockly.Events.setGroup(g);c.bumpNeighbours_();Blockly.Events.setGroup(!1)},Blockly.BUMP_DELAY)}c.rendered&&c.render();this.resizeBubble_();Blockly.Events.setGroup(!1)}};Blockly.Mutator.prototype.getFlyoutMetrics_=function(){return{viewHeight:this.workspaceHeight_,viewWidth:this.workspaceWidth_,absoluteTop:0,absoluteLeft:0}};
+Blockly.Mutator.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"mutatorOpen",!a,a)),a){this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconXY_,null,null);if(a=this.workspace_.options.languageTree)this.workspace_.flyout_.init(this.workspace_),this.workspace_.flyout_.show(a.childNodes);this.rootBlock_=this.block_.decompose(this.workspace_);a=this.rootBlock_.getDescendants();for(var b=
+0,c;c=a[b];b++)c.render();this.rootBlock_.setMovable(!1);this.rootBlock_.setDeletable(!1);this.workspace_.flyout_?(a=2*this.workspace_.flyout_.CORNER_RADIUS,b=this.workspace_.flyout_.width_+a):b=a=16;this.block_.RTL&&(b=-b);this.rootBlock_.moveBy(b,a);if(this.block_.saveConnections){var d=this;this.block_.saveConnections(this.rootBlock_);this.sourceListener_=function(){d.block_.saveConnections(d.rootBlock_)};this.block_.workspace.addChangeListener(this.sourceListener_)}this.resizeBubble_();this.workspace_.addChangeListener(this.workspaceChanged_.bind(this));
+this.updateColour()}else this.svgDialog_=null,this.workspace_.dispose(),this.rootBlock_=this.workspace_=null,this.bubble_.dispose(),this.bubble_=null,this.workspaceHeight_=this.workspaceWidth_=0,this.sourceListener_&&(this.block_.workspace.removeChangeListener(this.sourceListener_),this.sourceListener_=null)};
+Blockly.Mutator.prototype.workspaceChanged_=function(){if(Blockly.dragMode_==Blockly.DRAG_NONE)for(var a=this.workspace_.getTopBlocks(!1),b=0,c;c=a[b];b++){var d=c.getRelativeToSurfaceXY(),e=c.getHeightWidth();20>d.y+e.height&&c.moveBy(0,20-e.height-d.y)}if(this.rootBlock_.workspace==this.workspace_){Blockly.Events.setGroup(!0);c=this.block_;a=(a=c.mutationToDom())&&Blockly.Xml.domToText(a);b=c.rendered;c.rendered=!1;c.compose(this.rootBlock_);c.rendered=b;c.initSvg();b=(b=c.mutationToDom())&&Blockly.Xml.domToText(b);
+if(a!=b){Blockly.Events.fire(new Blockly.Events.Change(c,"mutation",null,a,b));var f=Blockly.Events.getGroup();setTimeout(function(){Blockly.Events.setGroup(f);c.bumpNeighbours_();Blockly.Events.setGroup(!1)},Blockly.BUMP_DELAY)}c.rendered&&c.render();this.resizeBubble_();Blockly.Events.setGroup(!1)}};Blockly.Mutator.prototype.getFlyoutMetrics_=function(){return{viewHeight:this.workspaceHeight_,viewWidth:this.workspaceWidth_,absoluteTop:0,absoluteLeft:0}};
 Blockly.Mutator.prototype.dispose=function(){this.block_.mutator=null;Blockly.Icon.prototype.dispose.call(this)};Blockly.Mutator.reconnect=function(a,b,c){if(!a||!a.getSourceBlock().workspace)return!1;c=b.getInput(c).connection;var d=a.targetBlock();return d&&d!=b||c.targetConnection==a?!1:(c.isConnected()&&c.disconnect(),c.connect(a),!0)};goog.global.Blockly||(goog.global.Blockly={});goog.global.Blockly.Mutator||(goog.global.Blockly.Mutator={});goog.global.Blockly.Mutator.reconnect=Blockly.Mutator.reconnect;Blockly.Warning=function(a){Blockly.Warning.superClass_.constructor.call(this,a);this.createIcon();this.text_={}};goog.inherits(Blockly.Warning,Blockly.Icon);Blockly.Warning.prototype.collapseHidden=!1;
 Blockly.Warning.prototype.drawIcon_=function(a){Blockly.createSvgElement("path",{"class":"blocklyIconShape",d:"M2,15Q-1,15 0.5,12L6.5,1.7Q8,-1 9.5,1.7L15.5,12Q17,15 14,15z"},a);Blockly.createSvgElement("path",{"class":"blocklyIconSymbol",d:"m7,4.8v3.16l0.27,2.27h1.46l0.27,-2.27v-3.16z"},a);Blockly.createSvgElement("rect",{"class":"blocklyIconSymbol",x:"7",y:"11",height:"2",width:"2"},a)};
-Blockly.Warning.textToDom_=function(a){var b=Blockly.createSvgElement("text",{"class":"blocklyText blocklyBubbleText",y:Blockly.Bubble.BORDER_WIDTH},null);a=a.split("\n");for(var c=0;c<a.length;c++){var d=Blockly.createSvgElement("tspan",{dy:"1em",x:Blockly.Bubble.BORDER_WIDTH},b),f=document.createTextNode(a[c]);d.appendChild(f)}return b};
-Blockly.Warning.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"warningOpen",!a,a)),a){a=Blockly.Warning.textToDom_(this.getText());this.bubble_=new Blockly.Bubble(this.block_.workspace,a,this.block_.svgPath_,this.iconX_,this.iconY_,null,null);if(this.block_.RTL)for(var b=a.getBBox().width,c=0,d;d=a.childNodes[c];c++)d.setAttribute("text-anchor","end"),d.setAttribute("x",b+Blockly.Bubble.BORDER_WIDTH);this.updateColour();a=this.bubble_.getBubbleSize();
+Blockly.Warning.textToDom_=function(a){var b=Blockly.createSvgElement("text",{"class":"blocklyText blocklyBubbleText",y:Blockly.Bubble.BORDER_WIDTH},null);a=a.split("\n");for(var c=0;c<a.length;c++){var d=Blockly.createSvgElement("tspan",{dy:"1em",x:Blockly.Bubble.BORDER_WIDTH},b),e=document.createTextNode(a[c]);d.appendChild(e)}return b};
+Blockly.Warning.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"warningOpen",!a,a)),a){a=Blockly.Warning.textToDom_(this.getText());this.bubble_=new Blockly.Bubble(this.block_.workspace,a,this.block_.svgPath_,this.iconXY_,null,null);if(this.block_.RTL)for(var b=a.getBBox().width,c=0,d;d=a.childNodes[c];c++)d.setAttribute("text-anchor","end"),d.setAttribute("x",b+Blockly.Bubble.BORDER_WIDTH);this.updateColour();a=this.bubble_.getBubbleSize();
 this.bubble_.setBubbleSize(a.width,a.height)}else this.bubble_.dispose(),this.body_=this.bubble_=null};Blockly.Warning.prototype.bodyFocus_=function(a){this.bubble_.promote_()};Blockly.Warning.prototype.setText=function(a,b){this.text_[b]!=a&&(a?this.text_[b]=a:delete this.text_[b],this.isVisible()&&(this.setVisible(!1),this.setVisible(!0)))};Blockly.Warning.prototype.getText=function(){var a=[],b;for(b in this.text_)a.push(this.text_[b]);return a.join("\n")};
 Blockly.Warning.prototype.dispose=function(){this.block_.warning=null;Blockly.Icon.prototype.dispose.call(this)};Blockly.Block=function(a,b,c){this.id=c&&!a.getBlockById(c)?c:Blockly.genUid();a.blockDB_[this.id]=this;this.previousConnection=this.nextConnection=this.outputConnection=null;this.inputList=[];this.inputsInline=void 0;this.disabled=!1;this.tooltip="";this.contextMenu=!0;this.parentBlock_=null;this.childBlocks_=[];this.editable_=this.movable_=this.deletable_=!0;this.collapsed_=this.isShadow_=!1;this.comment=null;this.xy_=new goog.math.Coordinate(0,0);this.workspace=a;this.isInFlyout=a.isFlyout;this.RTL=
 a.RTL;b&&(this.type=b,c=Blockly.Blocks[b],goog.asserts.assertObject(c,'Error: "%s" is an unknown language block.',b),goog.mixin(this,c));a.addTopBlock(this);goog.isFunction(this.init)&&this.init();this.inputsInlineDefault=this.inputsInline;Blockly.Events.isEnabled()&&Blockly.Events.fire(new Blockly.Events.Create(this));goog.isFunction(this.onchange)&&(this.onchangeWrapper_=this.onchange.bind(this),this.workspace.addChangeListener(this.onchangeWrapper_))};
@@ -1076,7 +1075,7 @@ Blockly.Block.prototype.dispose=function(a){this.onchangeWrapper_&&this.workspac
 0;b=this.getConnections_(!0);for(a=0;a<b.length;a++){var c=b[a];c.isConnected()&&c.disconnect();b[a].dispose()}Blockly.Events.enable()};
 Blockly.Block.prototype.unplug=function(a){if(this.outputConnection)this.outputConnection.isConnected()&&this.outputConnection.disconnect();else if(this.previousConnection){var b=null;this.previousConnection.isConnected()&&(b=this.previousConnection.targetConnection,this.previousConnection.disconnect());var c=this.getNextBlock();a&&c&&(a=this.nextConnection.targetConnection,a.disconnect(),b&&b.checkType_(a)&&b.connect(a))}};
 Blockly.Block.prototype.getConnections_=function(){var a=[];this.outputConnection&&a.push(this.outputConnection);this.previousConnection&&a.push(this.previousConnection);this.nextConnection&&a.push(this.nextConnection);for(var b=0,c;c=this.inputList[b];b++)c.connection&&a.push(c.connection);return a};Blockly.Block.prototype.lastConnectionInStack_=function(){for(var a=this.nextConnection;a;){var b=a.targetBlock();if(!b)return a;a=b.nextConnection}return null};
-Blockly.Block.prototype.bumpNeighbours_=function(){if(this.workspace&&Blockly.dragMode_==Blockly.DRAG_NONE){var a=this.getRootBlock();if(!a.isInFlyout)for(var b=this.getConnections_(!1),c=0,d;d=b[c];c++){d.isConnected()&&d.isSuperior()&&d.targetBlock().bumpNeighbours_();for(var f=d.neighbours_(Blockly.SNAP_RADIUS),g=0,h;h=f[g];g++)d.isConnected()&&h.isConnected()||h.getSourceBlock().getRootBlock()!=a&&(d.isSuperior()?h.bumpAwayFrom_(d):d.bumpAwayFrom_(h))}}};Blockly.Block.prototype.getParent=function(){return this.parentBlock_};
+Blockly.Block.prototype.bumpNeighbours_=function(){if(this.workspace&&Blockly.dragMode_==Blockly.DRAG_NONE){var a=this.getRootBlock();if(!a.isInFlyout)for(var b=this.getConnections_(!1),c=0,d;d=b[c];c++){d.isConnected()&&d.isSuperior()&&d.targetBlock().bumpNeighbours_();for(var e=d.neighbours_(Blockly.SNAP_RADIUS),f=0,g;g=e[f];f++)d.isConnected()&&g.isConnected()||g.getSourceBlock().getRootBlock()!=a&&(d.isSuperior()?g.bumpAwayFrom_(d):d.bumpAwayFrom_(g))}}};Blockly.Block.prototype.getParent=function(){return this.parentBlock_};
 Blockly.Block.prototype.getInputWithBlock=function(a){for(var b=0,c;c=this.inputList[b];b++)if(c.connection&&c.connection.targetBlock()==a)return c;return null};Blockly.Block.prototype.getSurroundParent=function(){var a=this;do{var b=a,a=a.getParent();if(!a)return null}while(a.getNextBlock()==b);return a};Blockly.Block.prototype.getNextBlock=function(){return this.nextConnection&&this.nextConnection.targetBlock()};
 Blockly.Block.prototype.getRootBlock=function(){var a,b=this;do a=b,b=a.parentBlock_;while(b);return a};Blockly.Block.prototype.getChildren=function(){return this.childBlocks_};
 Blockly.Block.prototype.setParent=function(a){if(a!=this.parentBlock_){if(this.parentBlock_){for(var b=this.parentBlock_.childBlocks_,c,d=0;c=b[d];d++)if(c==this){b.splice(d,1);break}if(this.previousConnection&&this.previousConnection.isConnected())throw"Still connected to previous block.";if(this.outputConnection&&this.outputConnection.isConnected())throw"Still connected to parent block.";this.parentBlock_=null}else this.workspace.removeTopBlock(this);(this.parentBlock_=a)?a.childBlocks_.push(this):
@@ -1084,8 +1083,8 @@ this.workspace.addTopBlock(this)}};Blockly.Block.prototype.getDescendants=functi
 Blockly.Block.prototype.setMovable=function(a){this.movable_=a};Blockly.Block.prototype.isShadow=function(){return this.isShadow_};Blockly.Block.prototype.setShadow=function(a){this.isShadow_=a};Blockly.Block.prototype.isEditable=function(){return this.editable_&&!(this.workspace&&this.workspace.options.readOnly)};Blockly.Block.prototype.setEditable=function(a){this.editable_=a;a=0;for(var b;b=this.inputList[a];a++)for(var c=0,d;d=b.fieldRow[c];c++)d.updateEditable()};
 Blockly.Block.prototype.setConnectionsHidden=function(a){if(!a&&this.isCollapsed()){if(this.outputConnection&&this.outputConnection.setHidden(a),this.previousConnection&&this.previousConnection.setHidden(a),this.nextConnection){this.nextConnection.setHidden(a);var b=this.nextConnection.targetBlock();b&&b.setConnectionsHidden(a)}}else for(var c=this.getConnections_(!0),d=0;b=c[d];d++)b.setHidden(a),b.isSuperior()&&(b=b.targetBlock())&&b.setConnectionsHidden(a)};
 Blockly.Block.prototype.setHelpUrl=function(a){this.helpUrl=a};Blockly.Block.prototype.setTooltip=function(a){this.tooltip=a};Blockly.Block.prototype.getColour=function(){return this.colour_};Blockly.Block.prototype.setColour=function(a){var b=parseFloat(a);if(isNaN(b))if(goog.isString(a)&&a.match(/^#[0-9a-fA-F]{6}$/))this.colour_=a;else throw"Invalid colour: "+a;else this.colour_=Blockly.hueToRgb(b)};
-Blockly.Block.prototype.getField=function(a){for(var b=0,c;c=this.inputList[b];b++)for(var d=0,f;f=c.fieldRow[d];d++)if(f.name===a)return f;return null};Blockly.Block.prototype.getVars=function(){for(var a=[],b=0,c;c=this.inputList[b];b++)for(var d=0,f;f=c.fieldRow[d];d++)f instanceof Blockly.FieldVariable&&a.push(f.getValue());return a};
-Blockly.Block.prototype.renameVar=function(a,b){for(var c=0,d;d=this.inputList[c];c++)for(var f=0,g;g=d.fieldRow[f];f++)g instanceof Blockly.FieldVariable&&Blockly.Names.equals(a,g.getValue())&&g.setValue(b)};Blockly.Block.prototype.getFieldValue=function(a){return(a=this.getField(a))?a.getValue():null};Blockly.Block.prototype.getTitleValue=function(a){console.warn("Deprecated call to getTitleValue, use getFieldValue instead.");return this.getFieldValue(a)};
+Blockly.Block.prototype.getField=function(a){for(var b=0,c;c=this.inputList[b];b++)for(var d=0,e;e=c.fieldRow[d];d++)if(e.name===a)return e;return null};Blockly.Block.prototype.getVars=function(){for(var a=[],b=0,c;c=this.inputList[b];b++)for(var d=0,e;e=c.fieldRow[d];d++)e instanceof Blockly.FieldVariable&&a.push(e.getValue());return a};
+Blockly.Block.prototype.renameVar=function(a,b){for(var c=0,d;d=this.inputList[c];c++)for(var e=0,f;f=d.fieldRow[e];e++)f instanceof Blockly.FieldVariable&&Blockly.Names.equals(a,f.getValue())&&f.setValue(b)};Blockly.Block.prototype.getFieldValue=function(a){return(a=this.getField(a))?a.getValue():null};Blockly.Block.prototype.getTitleValue=function(a){console.warn("Deprecated call to getTitleValue, use getFieldValue instead.");return this.getFieldValue(a)};
 Blockly.Block.prototype.setFieldValue=function(a,b){var c=this.getField(b);goog.asserts.assertObject(c,'Field "%s" not found.',b);c.setValue(a)};Blockly.Block.prototype.setTitleValue=function(a,b){console.warn("Deprecated call to setTitleValue, use setFieldValue instead.");this.setFieldValue(a,b)};
 Blockly.Block.prototype.setPreviousStatement=function(a,b){a?(void 0===b&&(b=null),this.previousConnection||(goog.asserts.assert(!this.outputConnection,"Remove output connection prior to adding previous connection."),this.previousConnection=new Blockly.Connection(this,Blockly.PREVIOUS_STATEMENT)),this.previousConnection.setCheck(b)):this.previousConnection&&(goog.asserts.assert(!this.previousConnection.isConnected(),"Must disconnect previous statement before removing connection."),this.previousConnection.dispose(),
 this.previousConnection=null)};Blockly.Block.prototype.setNextStatement=function(a,b){a?(void 0===b&&(b=null),this.nextConnection||(this.nextConnection=new Blockly.Connection(this,Blockly.NEXT_STATEMENT)),this.nextConnection.setCheck(b)):this.nextConnection&&(goog.asserts.assert(!this.nextConnection.isConnected(),"Must disconnect next statement before removing connection."),this.nextConnection.dispose(),this.nextConnection=null)};
@@ -1094,26 +1093,27 @@ null)};Blockly.Block.prototype.setInputsInline=function(a){this.inputsInline!=a&
 Blockly.Block.prototype.getInputsInline=function(){if(void 0!=this.inputsInline)return this.inputsInline;for(var a=1;a<this.inputList.length;a++)if(this.inputList[a-1].type==Blockly.DUMMY_INPUT&&this.inputList[a].type==Blockly.DUMMY_INPUT)return!1;for(a=1;a<this.inputList.length;a++)if(this.inputList[a-1].type==Blockly.INPUT_VALUE&&this.inputList[a].type==Blockly.DUMMY_INPUT)return!0;return!1};
 Blockly.Block.prototype.setDisabled=function(a){this.disabled!=a&&(Blockly.Events.fire(new Blockly.Events.Change(this,"disabled",null,this.disabled,a)),this.disabled=a)};Blockly.Block.prototype.getInheritedDisabled=function(){for(var a=this;;){a=a.getSurroundParent();if(!a)return!1;if(a.disabled)return!0}};Blockly.Block.prototype.isCollapsed=function(){return this.collapsed_};
 Blockly.Block.prototype.setCollapsed=function(a){this.collapsed_!=a&&(Blockly.Events.fire(new Blockly.Events.Change(this,"collapsed",null,this.collapsed_,a)),this.collapsed_=a)};
-Blockly.Block.prototype.toString=function(a){var b=[];if(this.collapsed_)b.push(this.getInput("_TEMP_COLLAPSED_INPUT").fieldRow[0].text_);else for(var c=0,d;d=this.inputList[c];c++){for(var f=0,g;g=d.fieldRow[f];f++)b.push(g.getText());d.connection&&((d=d.connection.targetBlock())?b.push(d.toString()):b.push("?"))}b=goog.string.trim(b.join(" "))||"???";a&&(b=goog.string.truncate(b,a));return b};Blockly.Block.prototype.appendValueInput=function(a){return this.appendInput_(Blockly.INPUT_VALUE,a)};
+Blockly.Block.prototype.toString=function(a){var b=[];if(this.collapsed_)b.push(this.getInput("_TEMP_COLLAPSED_INPUT").fieldRow[0].text_);else for(var c=0,d;d=this.inputList[c];c++){for(var e=0,f;f=d.fieldRow[e];e++)b.push(f.getText());d.connection&&((d=d.connection.targetBlock())?b.push(d.toString()):b.push("?"))}b=goog.string.trim(b.join(" "))||"???";a&&(b=goog.string.truncate(b,a));return b};Blockly.Block.prototype.appendValueInput=function(a){return this.appendInput_(Blockly.INPUT_VALUE,a)};
 Blockly.Block.prototype.appendStatementInput=function(a){return this.appendInput_(Blockly.NEXT_STATEMENT,a)};Blockly.Block.prototype.appendDummyInput=function(a){return this.appendInput_(Blockly.DUMMY_INPUT,a||"")};
 Blockly.Block.prototype.jsonInit=function(a){goog.asserts.assert(void 0==a.output||void 0==a.previousStatement,"Must not have both an output and a previousStatement.");void 0!==a.colour&&this.setColour(a.colour);for(var b=0;void 0!==a["message"+b];)this.interpolate_(a["message"+b],a["args"+b]||[],a["lastDummyAlign"+b]),b++;void 0!==a.inputsInline&&this.setInputsInline(a.inputsInline);void 0!==a.output&&this.setOutput(!0,a.output);void 0!==a.previousStatement&&this.setPreviousStatement(!0,a.previousStatement);
 void 0!==a.nextStatement&&this.setNextStatement(!0,a.nextStatement);void 0!==a.tooltip&&this.setTooltip(a.tooltip);void 0!==a.helpUrl&&this.setHelpUrl(a.helpUrl)};
-Blockly.Block.prototype.interpolate_=function(a,b,c){var d=Blockly.tokenizeInterpolation(a),f=[],g=0;a=[];for(var h=0;h<d.length;h++){var k=d[h];"number"==typeof k?(goog.asserts.assert(0<k&&k<=b.length,'Message index "%s" out of range.',k),goog.asserts.assert(!f[k],'Message index "%s" duplicated.',k),f[k]=!0,g++,a.push(b[k-1])):(k=k.trim())&&a.push(k)}goog.asserts.assert(g==b.length,"Message does not reference all %s arg(s).",b.length);!a.length||"string"!=typeof a[a.length-1]&&0!=a[a.length-1].type.indexOf("field_")||
-(b={type:"input_dummy"},c&&(b.align=c),a.push(b));c={LEFT:Blockly.ALIGN_LEFT,RIGHT:Blockly.ALIGN_RIGHT,CENTRE:Blockly.ALIGN_CENTRE};d=[];for(h=0;h<a.length;h++)if(f=a[h],"string"==typeof f)d.push([f,void 0]);else{b=g=null;do switch(k=!1,f.type){case "input_value":b=this.appendValueInput(f.name);break;case "input_statement":b=this.appendStatementInput(f.name);break;case "input_dummy":b=this.appendDummyInput(f.name);break;case "field_label":g=new Blockly.FieldLabel(f.text,f["class"]);break;case "field_input":g=
-new Blockly.FieldTextInput(f.text);"boolean"==typeof f.spellcheck&&g.setSpellcheck(f.spellcheck);break;case "field_angle":g=new Blockly.FieldAngle(f.angle);break;case "field_checkbox":g=new Blockly.FieldCheckbox(f.checked?"TRUE":"FALSE");break;case "field_colour":g=new Blockly.FieldColour(f.colour);break;case "field_variable":g=new Blockly.FieldVariable(f.variable);break;case "field_dropdown":g=new Blockly.FieldDropdown(f.options);break;case "field_image":g=new Blockly.FieldImage(f.src,f.width,f.height,
-f.alt);break;case "field_date":if(Blockly.FieldDate){g=new Blockly.FieldDate(f.date);break}default:f.alt&&(f=f.alt,k=!0)}while(k);if(g)d.push([g,f.name]);else if(b){f.check&&b.setCheck(f.check);f.align&&b.setAlign(c[f.align]);for(f=0;f<d.length;f++)b.appendField(d[f][0],d[f][1]);d.length=0}}};Blockly.Block.prototype.appendInput_=function(a,b){var c=null;if(a==Blockly.INPUT_VALUE||a==Blockly.NEXT_STATEMENT)c=new Blockly.Connection(this,a);c=new Blockly.Input(a,b,this,c);this.inputList.push(c);return c};
-Blockly.Block.prototype.moveInputBefore=function(a,b){if(a!=b){for(var c=-1,d=b?-1:this.inputList.length,f=0,g;g=this.inputList[f];f++)if(g.name==a){if(c=f,-1!=d)break}else if(b&&g.name==b&&(d=f,-1!=c))break;goog.asserts.assert(-1!=c,'Named input "%s" not found.',a);goog.asserts.assert(-1!=d,'Reference input "%s" not found.',b);this.moveNumberedInputBefore(c,d)}};
+Blockly.Block.prototype.interpolate_=function(a,b,c){var d=Blockly.tokenizeInterpolation(a),e=[],f=0;a=[];for(var g=0;g<d.length;g++){var h=d[g];"number"==typeof h?(goog.asserts.assert(0<h&&h<=b.length,'Message index "%s" out of range.',h),goog.asserts.assert(!e[h],'Message index "%s" duplicated.',h),e[h]=!0,f++,a.push(b[h-1])):(h=h.trim())&&a.push(h)}goog.asserts.assert(f==b.length,"Message does not reference all %s arg(s).",b.length);!a.length||"string"!=typeof a[a.length-1]&&0!=a[a.length-1].type.indexOf("field_")||
+(b={type:"input_dummy"},c&&(b.align=c),a.push(b));c={LEFT:Blockly.ALIGN_LEFT,RIGHT:Blockly.ALIGN_RIGHT,CENTRE:Blockly.ALIGN_CENTRE};d=[];for(g=0;g<a.length;g++)if(e=a[g],"string"==typeof e)d.push([e,void 0]);else{b=f=null;do switch(h=!1,e.type){case "input_value":b=this.appendValueInput(e.name);break;case "input_statement":b=this.appendStatementInput(e.name);break;case "input_dummy":b=this.appendDummyInput(e.name);break;case "field_label":f=new Blockly.FieldLabel(e.text,e["class"]);break;case "field_input":f=
+new Blockly.FieldTextInput(e.text);"boolean"==typeof e.spellcheck&&f.setSpellcheck(e.spellcheck);break;case "field_angle":f=new Blockly.FieldAngle(e.angle);break;case "field_checkbox":f=new Blockly.FieldCheckbox(e.checked?"TRUE":"FALSE");break;case "field_colour":f=new Blockly.FieldColour(e.colour);break;case "field_variable":f=new Blockly.FieldVariable(e.variable);break;case "field_dropdown":f=new Blockly.FieldDropdown(e.options);break;case "field_image":f=new Blockly.FieldImage(e.src,e.width,e.height,
+e.alt);break;case "field_date":if(Blockly.FieldDate){f=new Blockly.FieldDate(e.date);break}default:e.alt&&(e=e.alt,h=!0)}while(h);if(f)d.push([f,e.name]);else if(b){e.check&&b.setCheck(e.check);e.align&&b.setAlign(c[e.align]);for(e=0;e<d.length;e++)b.appendField(d[e][0],d[e][1]);d.length=0}}};Blockly.Block.prototype.appendInput_=function(a,b){var c=null;if(a==Blockly.INPUT_VALUE||a==Blockly.NEXT_STATEMENT)c=new Blockly.Connection(this,a);c=new Blockly.Input(a,b,this,c);this.inputList.push(c);return c};
+Blockly.Block.prototype.moveInputBefore=function(a,b){if(a!=b){for(var c=-1,d=b?-1:this.inputList.length,e=0,f;f=this.inputList[e];e++)if(f.name==a){if(c=e,-1!=d)break}else if(b&&f.name==b&&(d=e,-1!=c))break;goog.asserts.assert(-1!=c,'Named input "%s" not found.',a);goog.asserts.assert(-1!=d,'Reference input "%s" not found.',b);this.moveNumberedInputBefore(c,d)}};
 Blockly.Block.prototype.moveNumberedInputBefore=function(a,b){goog.asserts.assert(a!=b,"Can't move input to itself.");goog.asserts.assert(a<this.inputList.length,"Input index "+a+" out of bounds.");goog.asserts.assert(b<=this.inputList.length,"Reference input "+b+" out of bounds.");var c=this.inputList[a];this.inputList.splice(a,1);a<b&&b--;this.inputList.splice(b,0,c)};
-Blockly.Block.prototype.removeInput=function(a,b){for(var c=0,d;d=this.inputList[c];c++)if(d.name==a){if(d.connection&&d.connection.isConnected()){d.connection.setShadowDom(null);var f=d.connection.targetBlock();f.isShadow()?f.dispose():f.unplug()}d.dispose();this.inputList.splice(c,1);return}b||goog.asserts.fail('Input "%s" not found.',a)};Blockly.Block.prototype.getInput=function(a){for(var b=0,c;c=this.inputList[b];b++)if(c.name==a)return c;return null};
+Blockly.Block.prototype.removeInput=function(a,b){for(var c=0,d;d=this.inputList[c];c++)if(d.name==a){if(d.connection&&d.connection.isConnected()){d.connection.setShadowDom(null);var e=d.connection.targetBlock();e.isShadow()?e.dispose():e.unplug()}d.dispose();this.inputList.splice(c,1);return}b||goog.asserts.fail('Input "%s" not found.',a)};Blockly.Block.prototype.getInput=function(a){for(var b=0,c;c=this.inputList[b];b++)if(c.name==a)return c;return null};
 Blockly.Block.prototype.getInputTargetBlock=function(a){return(a=this.getInput(a))&&a.connection&&a.connection.targetBlock()};Blockly.Block.prototype.getCommentText=function(){return this.comment||""};Blockly.Block.prototype.setCommentText=function(a){this.comment!=a&&(Blockly.Events.fire(new Blockly.Events.Change(this,"comment",null,this.comment,a||"")),this.comment=a)};Blockly.Block.prototype.setWarningText=function(a){};Blockly.Block.prototype.setMutator=function(a){};
 Blockly.Block.prototype.getRelativeToSurfaceXY=function(){return this.xy_};Blockly.Block.prototype.moveBy=function(a,b){goog.asserts.assert(!this.parentBlock_,"Block has parent.");var c=new Blockly.Events.Move(this);this.xy_.translate(a,b);c.recordNew();Blockly.Events.fire(c)};Blockly.ContextMenu={};Blockly.ContextMenu.currentBlock=null;
-Blockly.ContextMenu.show=function(a,b,c){Blockly.WidgetDiv.show(Blockly.ContextMenu,c,null);if(b.length){var d=new goog.ui.Menu;d.setRightToLeft(c);for(var f=0,g;g=b[f];f++){var h=new goog.ui.MenuItem(g.text);h.setRightToLeft(c);d.addChild(h,!0);h.setEnabled(g.enabled);g.enabled&&goog.events.listen(h,goog.ui.Component.EventType.ACTION,g.callback)}goog.events.listen(d,goog.ui.Component.EventType.ACTION,Blockly.ContextMenu.hide);b=goog.dom.getViewportSize();g=goog.style.getViewportPageOffset(document);
-d.render(Blockly.WidgetDiv.DIV);var k=d.getElement();Blockly.addClass_(k,"blocklyContextMenu");var h=goog.style.getSize(k),f=a.clientX+g.x,l=a.clientY+g.y;a.clientY+h.height>=b.height&&(l-=h.height);c?h.width>=a.clientX&&(f+=h.width):a.clientX+h.width>=b.width&&(f-=h.width);Blockly.WidgetDiv.position(f,l,b,g,c);d.setAllowAutoFocus(!0);setTimeout(function(){k.focus()},1);Blockly.ContextMenu.currentBlock=null}else Blockly.ContextMenu.hide()};
+Blockly.ContextMenu.show=function(a,b,c){Blockly.WidgetDiv.show(Blockly.ContextMenu,c,null);if(b.length){var d=new goog.ui.Menu;d.setRightToLeft(c);for(var e=0,f;f=b[e];e++){var g=new goog.ui.MenuItem(f.text);g.setRightToLeft(c);d.addChild(g,!0);g.setEnabled(f.enabled);f.enabled&&goog.events.listen(g,goog.ui.Component.EventType.ACTION,f.callback)}goog.events.listen(d,goog.ui.Component.EventType.ACTION,Blockly.ContextMenu.hide);b=goog.dom.getViewportSize();f=goog.style.getViewportPageOffset(document);
+d.render(Blockly.WidgetDiv.DIV);var h=d.getElement();Blockly.addClass_(h,"blocklyContextMenu");var g=goog.style.getSize(h),e=a.clientX+f.x,k=a.clientY+f.y;a.clientY+g.height>=b.height&&(k-=g.height);c?g.width>=a.clientX&&(e+=g.width):a.clientX+g.width>=b.width&&(e-=g.width);Blockly.WidgetDiv.position(e,k,b,f,c);d.setAllowAutoFocus(!0);setTimeout(function(){h.focus()},1);Blockly.ContextMenu.currentBlock=null}else Blockly.ContextMenu.hide()};
 Blockly.ContextMenu.hide=function(){Blockly.WidgetDiv.hideIfOwner(Blockly.ContextMenu);Blockly.ContextMenu.currentBlock=null};
 Blockly.ContextMenu.callbackFactory=function(a,b){return function(){Blockly.Events.disable();var c=Blockly.Xml.domToBlock(b,a.workspace),d=a.getRelativeToSurfaceXY();d.x=a.RTL?d.x-Blockly.SNAP_RADIUS:d.x+Blockly.SNAP_RADIUS;d.y+=2*Blockly.SNAP_RADIUS;c.moveBy(d.x,d.y);Blockly.Events.enable();Blockly.Events.isEnabled()&&!c.isShadow()&&Blockly.Events.fire(new Blockly.Events.Create(c));c.select()}};Blockly.BlockSvg=function(a,b,c){this.svgGroup_=Blockly.createSvgElement("g",{},null);this.svgPathDark_=Blockly.createSvgElement("path",{"class":"blocklyPathDark",transform:"translate(1,1)"},this.svgGroup_);this.svgPath_=Blockly.createSvgElement("path",{"class":"blocklyPath"},this.svgGroup_);this.svgPathLight_=Blockly.createSvgElement("path",{"class":"blocklyPathLight"},this.svgGroup_);this.svgPath_.tooltip=this;this.rendered=!1;Blockly.Tooltip.bindMouseEvents(this.svgPath_);Blockly.BlockSvg.superClass_.constructor.call(this,
 a,b,c)};goog.inherits(Blockly.BlockSvg,Blockly.Block);Blockly.BlockSvg.prototype.height=0;Blockly.BlockSvg.prototype.width=0;Blockly.BlockSvg.prototype.dragStartXY_=null;Blockly.BlockSvg.INLINE=-1;
 Blockly.BlockSvg.prototype.initSvg=function(){goog.asserts.assert(this.workspace.rendered,"Workspace is headless.");for(var a=0,b;b=this.inputList[a];a++)b.init();b=this.getIcons();for(a=0;a<b.length;a++)b[a].createIcon();this.updateColour();this.updateMovable();if(!this.workspace.options.readOnly&&!this.eventsInit_){Blockly.bindEvent_(this.getSvgRoot(),"mousedown",this,this.onMouseDown_);var c=this;Blockly.bindEvent_(this.getSvgRoot(),"touchstart",null,function(a){Blockly.longStart_(a,c)})}this.eventsInit_=
-!0;this.getSvgRoot().parentNode||this.workspace.getCanvas().appendChild(this.getSvgRoot())};Blockly.BlockSvg.prototype.select=function(){if(Blockly.selected!=this){var a=null;Blockly.selected&&(a=Blockly.selected.id,Blockly.Events.disable(),Blockly.selected.unselect(),Blockly.Events.enable());a=new Blockly.Events.Ui(null,"selected",a,this.id);a.workspaceId=this.workspace.id;Blockly.Events.fire(a);Blockly.selected=this;this.addSelect();Blockly.fireUiEvent(this.workspace.getCanvas(),"blocklySelectChange")}};
+!0;this.getSvgRoot().parentNode||this.workspace.getCanvas().appendChild(this.getSvgRoot())};
+Blockly.BlockSvg.prototype.select=function(){if(this.isShadow()&&this.getParent())this.getParent().select();else if(Blockly.selected!=this){var a=null;Blockly.selected&&(a=Blockly.selected.id,Blockly.Events.disable(),Blockly.selected.unselect(),Blockly.Events.enable());a=new Blockly.Events.Ui(null,"selected",a,this.id);a.workspaceId=this.workspace.id;Blockly.Events.fire(a);Blockly.selected=this;this.addSelect();Blockly.fireUiEvent(this.workspace.getCanvas(),"blocklySelectChange")}};
 Blockly.BlockSvg.prototype.unselect=function(){if(Blockly.selected==this){var a=new Blockly.Events.Ui(null,"selected",this.id,null);a.workspaceId=this.workspace.id;Blockly.Events.fire(a);Blockly.selected=null;this.removeSelect();Blockly.fireUiEvent(this.workspace.getCanvas(),"blocklySelectChange")}};Blockly.BlockSvg.prototype.mutator=null;Blockly.BlockSvg.prototype.comment=null;Blockly.BlockSvg.prototype.warning=null;
 Blockly.BlockSvg.prototype.getIcons=function(){var a=[];this.mutator&&a.push(this.mutator);this.comment&&a.push(this.comment);this.warning&&a.push(this.warning);return a};Blockly.BlockSvg.onMouseUpWrapper_=null;Blockly.BlockSvg.onMouseMoveWrapper_=null;
 Blockly.BlockSvg.terminateDrag_=function(){Blockly.BlockSvg.disconnectUiStop_();Blockly.BlockSvg.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.BlockSvg.onMouseUpWrapper_),Blockly.BlockSvg.onMouseUpWrapper_=null);Blockly.BlockSvg.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.BlockSvg.onMouseMoveWrapper_),Blockly.BlockSvg.onMouseMoveWrapper_=null);var a=Blockly.selected;if(Blockly.dragMode_==Blockly.DRAG_FREE&&a){var b=a.getRelativeToSurfaceXY(),b=goog.math.Coordinate.difference(b,a.dragStartXY_),
@@ -1126,25 +1126,24 @@ Blockly.BlockSvg.prototype.snapToGrid=function(){if(this.workspace&&Blockly.drag
 Blockly.BlockSvg.prototype.getHeightWidth=function(){var a=this.height,b=this.width,c=this.getNextBlock();c?(c=c.getHeightWidth(),a+=c.height-4,b=Math.max(b,c.width)):this.nextConnection||this.outputConnection||(a+=2);return{height:a,width:b}};
 Blockly.BlockSvg.prototype.getBoundingRectangle=function(){var a=this.getRelativeToSurfaceXY(this),b=this.outputConnection?Blockly.BlockSvg.TAB_WIDTH:0,c=this.getHeightWidth(),d;this.RTL?(d=new goog.math.Coordinate(a.x-(c.width-b),a.y),a=new goog.math.Coordinate(a.x+b,a.y+c.height)):(d=new goog.math.Coordinate(a.x-b,a.y),a=new goog.math.Coordinate(a.x+c.width-b,a.y+c.height));return{topLeft:d,bottomRight:a}};
 Blockly.BlockSvg.prototype.setCollapsed=function(a){if(this.collapsed_!=a){for(var b=[],c=0,d;d=this.inputList[c];c++)b.push.apply(b,d.setVisible(!a));if(a){d=this.getIcons();for(c=0;c<d.length;c++)d[c].setVisible(!1);c=this.toString(Blockly.COLLAPSE_CHARS);this.appendDummyInput("_TEMP_COLLAPSED_INPUT").appendField(c).init()}else this.removeInput("_TEMP_COLLAPSED_INPUT"),this.setWarningText(null);Blockly.BlockSvg.superClass_.setCollapsed.call(this,a);b.length||(b[0]=this);if(this.rendered)for(c=0;a=
-b[c];c++)a.render()}};Blockly.BlockSvg.prototype.tab=function(a,b){for(var c=[],d=0,f;f=this.inputList[d];d++){for(var g=0,h;h=f.fieldRow[g];g++)h instanceof Blockly.FieldTextInput&&c.push(h);f.connection&&(f=f.connection.targetBlock())&&c.push(f)}d=c.indexOf(a);-1==d&&(d=b?-1:c.length);(c=c[b?d+1:d-1])?c instanceof Blockly.Field?c.showEditor_():c.tab(null,b):(c=this.getParent())&&c.tab(this,b)};
+b[c];c++)a.render()}};Blockly.BlockSvg.prototype.tab=function(a,b){for(var c=[],d=0,e;e=this.inputList[d];d++){for(var f=0,g;g=e.fieldRow[f];f++)g instanceof Blockly.FieldTextInput&&c.push(g);e.connection&&(e=e.connection.targetBlock())&&c.push(e)}d=c.indexOf(a);-1==d&&(d=b?-1:c.length);(c=c[b?d+1:d-1])?c instanceof Blockly.Field?c.showEditor_():c.tab(null,b):(c=this.getParent())&&c.tab(this,b)};
 Blockly.BlockSvg.prototype.onMouseDown_=function(a){if(!this.workspace.options.readOnly){if(!this.isInFlyout)if(Blockly.setPageSelectable(!1),this.workspace.markFocused(),Blockly.svgResize(this.workspace),Blockly.terminateDrag_(),this.select(),Blockly.hideChaff(),this.workspace.recordDeleteAreas(),Blockly.isRightButton(a))this.showContextMenu_(a);else if(this.isMovable()){Blockly.Events.getGroup()||Blockly.Events.setGroup(!0);Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);this.dragStartXY_=this.getRelativeToSurfaceXY();
-this.workspace.startDrag(a,this.dragStartXY_.x,this.dragStartXY_.y);Blockly.dragMode_=Blockly.DRAG_STICKY;Blockly.BlockSvg.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,this.onMouseUp_);Blockly.BlockSvg.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.onMouseMove_);this.draggedBubbles_=[];for(var b=this.getDescendants(),c=0,d;d=b[c];c++){d=d.getIcons();for(var f=0;f<d.length;f++){var g=d[f].getIconLocation();g.bubble=d[f];this.draggedBubbles_.push(g)}}}else return;
-a.stopPropagation()}};
-Blockly.BlockSvg.prototype.onMouseUp_=function(a){Blockly.dragMode_!=Blockly.DRAG_FREE&&Blockly.Events.fire(new Blockly.Events.Ui(this,"click",void 0,void 0));Blockly.setPageSelectable(!0);Blockly.terminateDrag_();Blockly.selected&&Blockly.highlightedConnection_?(Blockly.localConnection_.connect(Blockly.highlightedConnection_),this.rendered&&(Blockly.localConnection_.isSuperior()?Blockly.highlightedConnection_:Blockly.localConnection_).getSourceBlock().connectionUiEffect(),this.workspace.trashcan&&this.workspace.trashcan.close()):
-!this.getParent()&&Blockly.selected.isDeletable()&&this.workspace.isDeleteArea(a)&&((a=this.workspace.trashcan)&&goog.Timer.callOnce(a.close,100,a),Blockly.selected.dispose(!1,!0),Blockly.fireUiEvent(window,"resize"));Blockly.highlightedConnection_&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null);Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN);Blockly.WidgetDiv.isVisible()||Blockly.Events.setGroup(!1)};
+this.workspace.startDrag(a,this.dragStartXY_);Blockly.dragMode_=Blockly.DRAG_STICKY;Blockly.BlockSvg.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,this.onMouseUp_);Blockly.BlockSvg.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.onMouseMove_);this.draggedBubbles_=[];for(var b=this.getDescendants(),c=0,d;d=b[c];c++){d=d.getIcons();for(var e=0;e<d.length;e++){var f=d[e].getIconLocation();f.bubble=d[e];this.draggedBubbles_.push(f)}}}else return;a.stopPropagation()}};
+Blockly.BlockSvg.prototype.onMouseUp_=function(a){Blockly.dragMode_==Blockly.DRAG_FREE||Blockly.WidgetDiv.isVisible()||Blockly.Events.fire(new Blockly.Events.Ui(this,"click",void 0,void 0));Blockly.setPageSelectable(!0);Blockly.terminateDrag_();Blockly.selected&&Blockly.highlightedConnection_?(Blockly.localConnection_.connect(Blockly.highlightedConnection_),this.rendered&&(Blockly.localConnection_.isSuperior()?Blockly.highlightedConnection_:Blockly.localConnection_).getSourceBlock().connectionUiEffect(),
+this.workspace.trashcan&&this.workspace.trashcan.close()):!this.getParent()&&Blockly.selected.isDeletable()&&this.workspace.isDeleteArea(a)&&((a=this.workspace.trashcan)&&goog.Timer.callOnce(a.close,100,a),Blockly.selected.dispose(!1,!0),Blockly.fireUiEvent(window,"resize"));Blockly.highlightedConnection_&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null);Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN);Blockly.WidgetDiv.isVisible()||Blockly.Events.setGroup(!1)};
 Blockly.BlockSvg.prototype.showHelp_=function(){var a=goog.isFunction(this.helpUrl)?this.helpUrl():this.helpUrl;a&&window.open(a)};
 Blockly.BlockSvg.prototype.showContextMenu_=function(a){if(!this.workspace.options.readOnly&&this.contextMenu){var b=this,c=[];if(this.isDeletable()&&this.isMovable()&&!b.isInFlyout){var d={text:Blockly.Msg.DUPLICATE_BLOCK,enabled:!0,callback:function(){Blockly.duplicate_(b)}};this.getDescendants().length>this.workspace.remainingCapacity()&&(d.enabled=!1);c.push(d);this.isEditable()&&!this.collapsed_&&this.workspace.options.comments&&(d={enabled:!goog.userAgent.IE},this.comment?(d.text=Blockly.Msg.REMOVE_COMMENT,
-d.callback=function(){b.setCommentText(null)}):(d.text=Blockly.Msg.ADD_COMMENT,d.callback=function(){b.setCommentText("")}),c.push(d));if(!this.collapsed_)for(d=1;d<this.inputList.length;d++)if(this.inputList[d-1].type!=Blockly.NEXT_STATEMENT&&this.inputList[d].type!=Blockly.NEXT_STATEMENT){var d={enabled:!0},f=this.getInputsInline();d.text=f?Blockly.Msg.EXTERNAL_INPUTS:Blockly.Msg.INLINE_INPUTS;d.callback=function(){b.setInputsInline(!f)};c.push(d);break}this.workspace.options.collapse&&(this.collapsed_?
-(d={enabled:!0},d.text=Blockly.Msg.EXPAND_BLOCK,d.callback=function(){b.setCollapsed(!1)}):(d={enabled:!0},d.text=Blockly.Msg.COLLAPSE_BLOCK,d.callback=function(){b.setCollapsed(!0)}),c.push(d));this.workspace.options.disable&&(d={text:this.disabled?Blockly.Msg.ENABLE_BLOCK:Blockly.Msg.DISABLE_BLOCK,enabled:!this.getInheritedDisabled(),callback:function(){b.setDisabled(!b.disabled)}},c.push(d));var d=this.getDescendants().length,g=this.getNextBlock();g&&(d-=g.getDescendants().length);d={text:1==d?
+d.callback=function(){b.setCommentText(null)}):(d.text=Blockly.Msg.ADD_COMMENT,d.callback=function(){b.setCommentText("")}),c.push(d));if(!this.collapsed_)for(d=1;d<this.inputList.length;d++)if(this.inputList[d-1].type!=Blockly.NEXT_STATEMENT&&this.inputList[d].type!=Blockly.NEXT_STATEMENT){var d={enabled:!0},e=this.getInputsInline();d.text=e?Blockly.Msg.EXTERNAL_INPUTS:Blockly.Msg.INLINE_INPUTS;d.callback=function(){b.setInputsInline(!e)};c.push(d);break}this.workspace.options.collapse&&(this.collapsed_?
+(d={enabled:!0},d.text=Blockly.Msg.EXPAND_BLOCK,d.callback=function(){b.setCollapsed(!1)}):(d={enabled:!0},d.text=Blockly.Msg.COLLAPSE_BLOCK,d.callback=function(){b.setCollapsed(!0)}),c.push(d));this.workspace.options.disable&&(d={text:this.disabled?Blockly.Msg.ENABLE_BLOCK:Blockly.Msg.DISABLE_BLOCK,enabled:!this.getInheritedDisabled(),callback:function(){b.setDisabled(!b.disabled)}},c.push(d));var d=this.getDescendants().length,f=this.getNextBlock();f&&(d-=f.getDescendants().length);d={text:1==d?
 Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(d)),enabled:!0,callback:function(){Blockly.Events.setGroup(!0);b.dispose(!0,!0);Blockly.Events.setGroup(!1)}};c.push(d)}d={enabled:!(goog.isFunction(this.helpUrl)?!this.helpUrl():!this.helpUrl)};d.text=Blockly.Msg.HELP;d.callback=function(){b.showHelp_()};c.push(d);this.customContextMenu&&!b.isInFlyout&&this.customContextMenu(c);Blockly.ContextMenu.show(a,c,this.RTL);Blockly.ContextMenu.currentBlock=this}};
 Blockly.BlockSvg.prototype.moveConnections_=function(a,b){if(this.rendered){for(var c=this.getConnections_(!1),d=0;d<c.length;d++)c[d].moveBy(a,b);c=this.getIcons();for(d=0;d<c.length;d++)c[d].computeIconLocation();for(d=0;d<this.childBlocks_.length;d++)this.childBlocks_[d].moveConnections_(a,b)}};Blockly.BlockSvg.prototype.setDragging_=function(a){if(a){var b=this.getSvgRoot();b.translate_="";b.skew_="";this.addDragging()}else this.removeDragging();for(b=0;b<this.childBlocks_.length;b++)this.childBlocks_[b].setDragging_(a)};
 Blockly.BlockSvg.prototype.onMouseMove_=function(a){if(!("mousemove"==a.type&&1>=a.clientX&&0==a.clientY&&0==a.button)){var b=this.getRelativeToSurfaceXY(),c=this.workspace.moveDrag(a);if(Blockly.dragMode_==Blockly.DRAG_STICKY&&goog.math.Coordinate.distance(b,c)*this.workspace.scale>Blockly.DRAG_RADIUS){Blockly.dragMode_=Blockly.DRAG_FREE;Blockly.longStop_();if(this.parentBlock_){this.unplug();var d=this.getSvgRoot();d.translate_="translate("+c.x+","+c.y+")";this.disconnectUiEffect()}this.setDragging_(!0)}if(Blockly.dragMode_==
-Blockly.DRAG_FREE){var f=b.x-this.dragStartXY_.x,b=b.y-this.dragStartXY_.y,d=this.getSvgRoot();d.translate_="translate("+c.x+","+c.y+")";d.setAttribute("transform",d.translate_+d.skew_);for(c=0;c<this.draggedBubbles_.length;c++)d=this.draggedBubbles_[c],d.bubble.setIconLocation(d.x+f,d.y+b);for(var d=this.getConnections_(!1),g=null,h=null,k=Blockly.SNAP_RADIUS,c=0;c<d.length;c++){var l=d[c],m=l.closest(k,f,b);m.connection&&(g=m.connection,h=l,k=m.radius)}Blockly.highlightedConnection_&&Blockly.highlightedConnection_!=
-g&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null,Blockly.localConnection_=null);g&&g!=Blockly.highlightedConnection_&&(g.highlight(),Blockly.highlightedConnection_=g,Blockly.localConnection_=h);this.isDeletable()&&this.workspace.isDeleteArea(a)}}a.stopPropagation()};Blockly.BlockSvg.prototype.updateMovable=function(){this.isMovable()?Blockly.addClass_(this.svgGroup_,"blocklyDraggable"):Blockly.removeClass_(this.svgGroup_,"blocklyDraggable")};
+Blockly.DRAG_FREE){b=goog.math.Coordinate.difference(b,this.dragStartXY_);d=this.getSvgRoot();d.translate_="translate("+c.x+","+c.y+")";d.setAttribute("transform",d.translate_+d.skew_);for(c=0;c<this.draggedBubbles_.length;c++)d=this.draggedBubbles_[c],d.bubble.setIconLocation(goog.math.Coordinate.sum(d,b));for(var d=this.getConnections_(!1),e=null,f=null,g=Blockly.SNAP_RADIUS,c=0;c<d.length;c++){var h=d[c],k=h.closest(g,b);k.connection&&(e=k.connection,f=h,g=k.radius)}Blockly.highlightedConnection_&&
+Blockly.highlightedConnection_!=e&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null,Blockly.localConnection_=null);e&&e!=Blockly.highlightedConnection_&&(e.highlight(),Blockly.highlightedConnection_=e,Blockly.localConnection_=f);this.isDeletable()&&this.workspace.isDeleteArea(a)}}a.stopPropagation()};Blockly.BlockSvg.prototype.updateMovable=function(){this.isMovable()?Blockly.addClass_(this.svgGroup_,"blocklyDraggable"):Blockly.removeClass_(this.svgGroup_,"blocklyDraggable")};
 Blockly.BlockSvg.prototype.setMovable=function(a){Blockly.BlockSvg.superClass_.setMovable.call(this,a);this.updateMovable()};Blockly.BlockSvg.prototype.setEditable=function(a){Blockly.BlockSvg.superClass_.setEditable.call(this,a);if(this.rendered){a=this.getIcons();for(var b=0;b<a.length;b++)a[b].updateEditable()}};Blockly.BlockSvg.prototype.setShadow=function(a){Blockly.BlockSvg.superClass_.setShadow.call(this,a);this.updateColour()};Blockly.BlockSvg.prototype.getSvgRoot=function(){return this.svgGroup_};
 Blockly.BlockSvg.prototype.dispose=function(a,b){Blockly.Field.startCache();Blockly.selected==this&&(this.unselect(),Blockly.terminateDrag_());Blockly.ContextMenu.currentBlock==this&&Blockly.ContextMenu.hide();b&&this.rendered&&(this.unplug(a),this.disposeUiEffect());this.rendered=!1;Blockly.Events.disable();for(var c=this.getIcons(),d=0;d<c.length;d++)c[d].dispose();Blockly.Events.enable();Blockly.BlockSvg.superClass_.dispose.call(this,a);goog.dom.removeNode(this.svgGroup_);this.svgPathDark_=this.svgPathLight_=
 this.svgPath_=this.svgGroup_=null;Blockly.Field.stopCache()};Blockly.BlockSvg.prototype.disposeUiEffect=function(){this.workspace.playAudio("delete");var a=Blockly.getSvgXY_(this.svgGroup_,this.workspace),b=this.svgGroup_.cloneNode(!0);b.translateX_=a.x;b.translateY_=a.y;b.setAttribute("transform","translate("+b.translateX_+","+b.translateY_+")");this.workspace.getParentSvg().appendChild(b);b.bBox_=b.getBBox();Blockly.BlockSvg.disposeUiStep_(b,this.RTL,new Date,this.workspace.scale)};
-Blockly.BlockSvg.disposeUiStep_=function(a,b,c,d){var f=(new Date-c)/150;1<f?goog.dom.removeNode(a):(a.setAttribute("transform","translate("+(a.translateX_+(b?-1:1)*a.bBox_.width*d/2*f)+","+(a.translateY_+a.bBox_.height*d*f)+") scale("+(1-f)*d+")"),setTimeout(function(){Blockly.BlockSvg.disposeUiStep_(a,b,c,d)},10))};
+Blockly.BlockSvg.disposeUiStep_=function(a,b,c,d){var e=(new Date-c)/150;1<e?goog.dom.removeNode(a):(a.setAttribute("transform","translate("+(a.translateX_+(b?-1:1)*a.bBox_.width*d/2*e)+","+(a.translateY_+a.bBox_.height*d*e)+") scale("+(1-e)*d+")"),setTimeout(function(){Blockly.BlockSvg.disposeUiStep_(a,b,c,d)},10))};
 Blockly.BlockSvg.prototype.connectionUiEffect=function(){this.workspace.playAudio("click");if(!(1>this.workspace.scale)){var a=Blockly.getSvgXY_(this.svgGroup_,this.workspace);this.outputConnection?(a.x+=(this.RTL?3:-3)*this.workspace.scale,a.y+=13*this.workspace.scale):this.previousConnection&&(a.x+=(this.RTL?-23:23)*this.workspace.scale,a.y+=3*this.workspace.scale);a=Blockly.createSvgElement("circle",{cx:a.x,cy:a.y,r:0,fill:"none",stroke:"#888","stroke-width":10},this.workspace.getParentSvg());
 Blockly.BlockSvg.connectionUiStep_(a,new Date,this.workspace.scale)}};Blockly.BlockSvg.connectionUiStep_=function(a,b,c){var d=(new Date-b)/150;1<d?goog.dom.removeNode(a):(a.setAttribute("r",25*d*c),a.style.opacity=1-d,Blockly.BlockSvg.disconnectUiStop_.pid_=setTimeout(function(){Blockly.BlockSvg.connectionUiStep_(a,b,c)},10))};
 Blockly.BlockSvg.prototype.disconnectUiEffect=function(){this.workspace.playAudio("disconnect");if(!(1>this.workspace.scale)){var a=this.getHeightWidth().height,a=Math.atan(10/a)/Math.PI*180;this.RTL||(a*=-1);Blockly.BlockSvg.disconnectUiStep_(this.svgGroup_,a,new Date)}};
@@ -1154,8 +1153,8 @@ Blockly.BlockSvg.prototype.updateColour=function(){if(!this.disabled){var a=this
 b)}this.svgPath_.setAttribute("fill",a);a=this.getIcons();for(c=0;c<a.length;c++)a[c].updateColour();for(a=0;c=this.inputList[a];a++)for(var b=0,d;d=c.fieldRow[b];b++)d.setText(null)}};
 Blockly.BlockSvg.prototype.updateDisabled=function(){var a=Blockly.hasClass_(this.svgGroup_,"blocklyDisabled");this.disabled||this.getInheritedDisabled()?a||(Blockly.addClass_(this.svgGroup_,"blocklyDisabled"),this.svgPath_.setAttribute("fill","url(#"+this.workspace.options.disabledPatternId+")")):a&&(Blockly.removeClass_(this.svgGroup_,"blocklyDisabled"),this.updateColour());for(var a=this.getChildren(),b=0,c;c=a[b];b++)c.updateDisabled()};
 Blockly.BlockSvg.prototype.getCommentText=function(){return this.comment?this.comment.getText().replace(/\s+$/,"").replace(/ +\n/g,"\n"):""};Blockly.BlockSvg.prototype.setCommentText=function(a){var b=!1;goog.isString(a)?(this.comment||(this.comment=new Blockly.Comment(this),b=!0),this.comment.setText(a)):this.comment&&(this.comment.dispose(),b=!0);b&&this.rendered&&(this.render(),this.bumpNeighbours_())};
-Blockly.BlockSvg.prototype.setWarningText=function(a,b){this.setWarningText.pid_||(this.setWarningText.pid_=Object.create(null));var c=b||"";if(c)this.setWarningText.pid_[c]&&(clearTimeout(this.setWarningText.pid_[c]),delete this.setWarningText.pid_[c]);else for(var d in this.setWarningText.pid_)clearTimeout(this.setWarningText.pid_[d]),delete this.setWarningText.pid_[d];if(Blockly.dragMode_==Blockly.DRAG_FREE){var f=this;this.setWarningText.pid_[c]=setTimeout(function(){f.workspace&&(delete f.setWarningText.pid_[c],
-f.setWarningText(a,c))},100)}else{this.isInFlyout&&(a=null);d=this.getSurroundParent();for(var g=null;d;)d.isCollapsed()&&(g=d),d=d.getSurroundParent();g&&g.setWarningText(a,"collapsed "+this.id+" "+c);d=!1;goog.isString(a)?(this.warning||(this.warning=new Blockly.Warning(this),d=!0),this.warning.setText(a,c)):this.warning&&!c?(this.warning.dispose(),d=!0):this.warning&&(d=this.warning.getText(),this.warning.setText("",c),(g=this.warning.getText())||this.warning.dispose(),d=d==g);d&&this.rendered&&
+Blockly.BlockSvg.prototype.setWarningText=function(a,b){this.setWarningText.pid_||(this.setWarningText.pid_=Object.create(null));var c=b||"";if(c)this.setWarningText.pid_[c]&&(clearTimeout(this.setWarningText.pid_[c]),delete this.setWarningText.pid_[c]);else for(var d in this.setWarningText.pid_)clearTimeout(this.setWarningText.pid_[d]),delete this.setWarningText.pid_[d];if(Blockly.dragMode_==Blockly.DRAG_FREE){var e=this;this.setWarningText.pid_[c]=setTimeout(function(){e.workspace&&(delete e.setWarningText.pid_[c],
+e.setWarningText(a,c))},100)}else{this.isInFlyout&&(a=null);d=this.getSurroundParent();for(var f=null;d;)d.isCollapsed()&&(f=d),d=d.getSurroundParent();f&&f.setWarningText(a,"collapsed "+this.id+" "+c);d=!1;goog.isString(a)?(this.warning||(this.warning=new Blockly.Warning(this),d=!0),this.warning.setText(a,c)):this.warning&&!c?(this.warning.dispose(),d=!0):this.warning&&(d=this.warning.getText(),this.warning.setText("",c),(f=this.warning.getText())||this.warning.dispose(),d=d==f);d&&this.rendered&&
 (this.render(),this.bumpNeighbours_())}};Blockly.BlockSvg.prototype.setMutator=function(a){this.mutator&&this.mutator!==a&&this.mutator.dispose();a&&(a.block_=this,this.mutator=a,a.createIcon())};Blockly.BlockSvg.prototype.setDisabled=function(a){this.disabled!=a&&(Blockly.BlockSvg.superClass_.setDisabled.call(this,a),this.rendered&&this.updateDisabled())};Blockly.BlockSvg.prototype.addSelect=function(){Blockly.addClass_(this.svgGroup_,"blocklySelected");this.svgGroup_.parentNode.appendChild(this.svgGroup_)};
 Blockly.BlockSvg.prototype.removeSelect=function(){Blockly.removeClass_(this.svgGroup_,"blocklySelected")};Blockly.BlockSvg.prototype.addDragging=function(){Blockly.addClass_(this.svgGroup_,"blocklyDragging")};Blockly.BlockSvg.prototype.removeDragging=function(){Blockly.removeClass_(this.svgGroup_,"blocklyDragging")};Blockly.BlockSvg.prototype.setColour=function(a){Blockly.BlockSvg.superClass_.setColour.call(this,a);this.rendered&&this.updateColour()};
 Blockly.BlockSvg.prototype.setPreviousStatement=function(a,b){Blockly.BlockSvg.superClass_.setPreviousStatement.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_())};Blockly.BlockSvg.prototype.setNextStatement=function(a,b){Blockly.BlockSvg.superClass_.setNextStatement.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_())};Blockly.BlockSvg.prototype.setOutput=function(a,b){Blockly.BlockSvg.superClass_.setOutput.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_())};
@@ -1168,34 +1167,34 @@ Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT="A "+(Blockly.BlockSvg.CORNER_RADIUS-
 Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER="a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS;Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL="a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 "+(-Blockly.BlockSvg.DISTANCE_45_OUTSIDE-.5)+","+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE);
 Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL="a "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5);Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR="a "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)+","+(Blockly.BlockSvg.DISTANCE_45_OUTSIDE+.5);
 Blockly.BlockSvg.prototype.render=function(a){Blockly.Field.startCache();this.rendered=!0;var b=Blockly.BlockSvg.SEP_SPACE_X;this.RTL&&(b=-b);for(var c=this.getIcons(),d=0;d<c.length;d++)b=c[d].renderIcon(b);b+=this.RTL?Blockly.BlockSvg.SEP_SPACE_X:-Blockly.BlockSvg.SEP_SPACE_X;c=this.renderCompute_(b);this.renderDraw_(b,c);!1!==a&&((a=this.getParent())?a.render(!0):Blockly.fireUiEvent(window,"resize"));Blockly.Field.stopCache()};
-Blockly.BlockSvg.prototype.renderFields_=function(a,b,c){c+=Blockly.BlockSvg.INLINE_PADDING_Y;this.RTL&&(b=-b);for(var d=0,f;f=a[d];d++){var g=f.getSvgRoot();g&&(this.RTL?(b-=f.renderSep+f.renderWidth,g.setAttribute("transform","translate("+b+","+c+")"),f.renderWidth&&(b-=Blockly.BlockSvg.SEP_SPACE_X)):(g.setAttribute("transform","translate("+(b+f.renderSep)+","+c+")"),f.renderWidth&&(b+=f.renderSep+f.renderWidth+Blockly.BlockSvg.SEP_SPACE_X)))}return this.RTL?-b:b};
-Blockly.BlockSvg.prototype.renderCompute_=function(a){var b=this.inputList,c=[];c.rightEdge=a+2*Blockly.BlockSvg.SEP_SPACE_X;if(this.previousConnection||this.nextConnection)c.rightEdge=Math.max(c.rightEdge,Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.SEP_SPACE_X);for(var d=0,f=0,g=!1,h=!1,k=!1,l=void 0,m=this.getInputsInline()&&!this.isCollapsed(),r=0,n;n=b[r];r++)if(n.isVisible()){var q;m&&l&&l!=Blockly.NEXT_STATEMENT&&n.type!=Blockly.NEXT_STATEMENT?q=c[c.length-1]:(l=n.type,q=[],q.type=m&&n.type!=
-Blockly.NEXT_STATEMENT?Blockly.BlockSvg.INLINE:n.type,q.height=0,c.push(q));q.push(n);n.renderHeight=Blockly.BlockSvg.MIN_BLOCK_Y;n.renderWidth=m&&n.type==Blockly.INPUT_VALUE?Blockly.BlockSvg.TAB_WIDTH+1.25*Blockly.BlockSvg.SEP_SPACE_X:0;if(n.connection&&n.connection.isConnected()){var p=n.connection.targetBlock().getHeightWidth();n.renderHeight=Math.max(n.renderHeight,p.height);n.renderWidth=Math.max(n.renderWidth,p.width)}m||r!=b.length-1?!m&&n.type==Blockly.INPUT_VALUE&&b[r+1]&&b[r+1].type==Blockly.NEXT_STATEMENT&&
-n.renderHeight--:n.renderHeight--;q.height=Math.max(q.height,n.renderHeight);n.fieldWidth=0;1==c.length&&(n.fieldWidth+=this.RTL?-a:a);for(var p=!1,t=0,u;u=n.fieldRow[t];t++){0!=t&&(n.fieldWidth+=Blockly.BlockSvg.SEP_SPACE_X);var v=u.getSize();u.renderWidth=v.width;u.renderSep=p&&u.EDITABLE?Blockly.BlockSvg.SEP_SPACE_X:0;n.fieldWidth+=u.renderWidth+u.renderSep;q.height=Math.max(q.height,v.height);p=u.EDITABLE}q.type!=Blockly.BlockSvg.INLINE&&(q.type==Blockly.NEXT_STATEMENT?(h=!0,f=Math.max(f,n.fieldWidth)):
-(q.type==Blockly.INPUT_VALUE?g=!0:q.type==Blockly.DUMMY_INPUT&&(k=!0),d=Math.max(d,n.fieldWidth)))}for(a=0;q=c[a];a++)if(q.thicker=!1,q.type==Blockly.BlockSvg.INLINE)for(b=0;n=q[b];b++)if(n.type==Blockly.INPUT_VALUE){q.height+=2*Blockly.BlockSvg.INLINE_PADDING_Y;q.thicker=!0;break}c.statementEdge=2*Blockly.BlockSvg.SEP_SPACE_X+f;h&&(c.rightEdge=Math.max(c.rightEdge,c.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH));g?c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X+Blockly.BlockSvg.TAB_WIDTH):
-k&&(c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X));c.hasValue=g;c.hasStatement=h;c.hasDummy=k;return c};
+Blockly.BlockSvg.prototype.renderFields_=function(a,b,c){c+=Blockly.BlockSvg.INLINE_PADDING_Y;this.RTL&&(b=-b);for(var d=0,e;e=a[d];d++){var f=e.getSvgRoot();f&&(this.RTL?(b-=e.renderSep+e.renderWidth,f.setAttribute("transform","translate("+b+","+c+")"),e.renderWidth&&(b-=Blockly.BlockSvg.SEP_SPACE_X)):(f.setAttribute("transform","translate("+(b+e.renderSep)+","+c+")"),e.renderWidth&&(b+=e.renderSep+e.renderWidth+Blockly.BlockSvg.SEP_SPACE_X)))}return this.RTL?-b:b};
+Blockly.BlockSvg.prototype.renderCompute_=function(a){var b=this.inputList,c=[];c.rightEdge=a+2*Blockly.BlockSvg.SEP_SPACE_X;if(this.previousConnection||this.nextConnection)c.rightEdge=Math.max(c.rightEdge,Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.SEP_SPACE_X);for(var d=0,e=0,f=!1,g=!1,h=!1,k=void 0,l=this.getInputsInline()&&!this.isCollapsed(),q=0,m;m=b[q];q++)if(m.isVisible()){var p;l&&k&&k!=Blockly.NEXT_STATEMENT&&m.type!=Blockly.NEXT_STATEMENT?p=c[c.length-1]:(k=m.type,p=[],p.type=l&&m.type!=
+Blockly.NEXT_STATEMENT?Blockly.BlockSvg.INLINE:m.type,p.height=0,c.push(p));p.push(m);m.renderHeight=Blockly.BlockSvg.MIN_BLOCK_Y;m.renderWidth=l&&m.type==Blockly.INPUT_VALUE?Blockly.BlockSvg.TAB_WIDTH+1.25*Blockly.BlockSvg.SEP_SPACE_X:0;if(m.connection&&m.connection.isConnected()){var n=m.connection.targetBlock().getHeightWidth();m.renderHeight=Math.max(m.renderHeight,n.height);m.renderWidth=Math.max(m.renderWidth,n.width)}l||q!=b.length-1?!l&&m.type==Blockly.INPUT_VALUE&&b[q+1]&&b[q+1].type==Blockly.NEXT_STATEMENT&&
+m.renderHeight--:m.renderHeight--;p.height=Math.max(p.height,m.renderHeight);m.fieldWidth=0;1==c.length&&(m.fieldWidth+=this.RTL?-a:a);for(var n=!1,r=0,t;t=m.fieldRow[r];r++){0!=r&&(m.fieldWidth+=Blockly.BlockSvg.SEP_SPACE_X);var u=t.getSize();t.renderWidth=u.width;t.renderSep=n&&t.EDITABLE?Blockly.BlockSvg.SEP_SPACE_X:0;m.fieldWidth+=t.renderWidth+t.renderSep;p.height=Math.max(p.height,u.height);n=t.EDITABLE}p.type!=Blockly.BlockSvg.INLINE&&(p.type==Blockly.NEXT_STATEMENT?(g=!0,e=Math.max(e,m.fieldWidth)):
+(p.type==Blockly.INPUT_VALUE?f=!0:p.type==Blockly.DUMMY_INPUT&&(h=!0),d=Math.max(d,m.fieldWidth)))}for(a=0;p=c[a];a++)if(p.thicker=!1,p.type==Blockly.BlockSvg.INLINE)for(b=0;m=p[b];b++)if(m.type==Blockly.INPUT_VALUE){p.height+=2*Blockly.BlockSvg.INLINE_PADDING_Y;p.thicker=!0;break}c.statementEdge=2*Blockly.BlockSvg.SEP_SPACE_X+e;g&&(c.rightEdge=Math.max(c.rightEdge,c.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH));f?c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X+Blockly.BlockSvg.TAB_WIDTH):
+h&&(c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X));c.hasValue=f;c.hasStatement=g;c.hasDummy=h;return c};
 Blockly.BlockSvg.prototype.renderDraw_=function(a,b){this.startHat_=!1;if(this.outputConnection)this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!0;else{this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!1;if(this.previousConnection){var c=this.previousConnection.targetBlock();c&&c.getNextBlock()==this&&(this.squareTopLeftCorner_=!0)}else Blockly.BlockSvg.START_HAT&&(this.startHat_=this.squareTopLeftCorner_=!0,b.rightEdge=Math.max(b.rightEdge,100));this.getNextBlock()&&(this.squareBottomLeftCorner_=
-!0)}var d=this.getRelativeToSurfaceXY(),f=[],g=[],c=[],h=[];this.renderDrawTop_(f,c,d,b.rightEdge);var k=this.renderDrawRight_(f,c,g,h,d,b,a);this.renderDrawBottom_(f,c,d,k);this.renderDrawLeft_(f,c,d,k);d=f.join(" ")+"\n"+g.join(" ");this.svgPath_.setAttribute("d",d);this.svgPathDark_.setAttribute("d",d);d=c.join(" ")+"\n"+h.join(" ");this.svgPathLight_.setAttribute("d",d);this.RTL&&(this.svgPath_.setAttribute("transform","scale(-1 1)"),this.svgPathLight_.setAttribute("transform","scale(-1 1)"),
+!0)}var d=this.getRelativeToSurfaceXY(),e=[],f=[],c=[],g=[];this.renderDrawTop_(e,c,d,b.rightEdge);var h=this.renderDrawRight_(e,c,f,g,d,b,a);this.renderDrawBottom_(e,c,d,h);this.renderDrawLeft_(e,c,d,h);d=e.join(" ")+"\n"+f.join(" ");this.svgPath_.setAttribute("d",d);this.svgPathDark_.setAttribute("d",d);d=c.join(" ")+"\n"+g.join(" ");this.svgPathLight_.setAttribute("d",d);this.RTL&&(this.svgPath_.setAttribute("transform","scale(-1 1)"),this.svgPathLight_.setAttribute("transform","scale(-1 1)"),
 this.svgPathDark_.setAttribute("transform","translate(1,1) scale(-1 1)"))};
 Blockly.BlockSvg.prototype.renderDrawTop_=function(a,b,c,d){this.squareTopLeftCorner_?(a.push("m 0,0"),b.push("m 0.5,0.5"),this.startHat_&&(a.push(Blockly.BlockSvg.START_HAT_PATH),b.push(this.RTL?Blockly.BlockSvg.START_HAT_HIGHLIGHT_RTL:Blockly.BlockSvg.START_HAT_HIGHLIGHT_LTR))):(a.push(Blockly.BlockSvg.TOP_LEFT_CORNER_START),b.push(this.RTL?Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_RTL:Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_LTR),a.push(Blockly.BlockSvg.TOP_LEFT_CORNER),b.push(Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT));
 this.previousConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH-15),b.push("H",Blockly.BlockSvg.NOTCH_WIDTH-15),a.push(Blockly.BlockSvg.NOTCH_PATH_LEFT),b.push(Blockly.BlockSvg.NOTCH_PATH_LEFT_HIGHLIGHT),this.previousConnection.moveTo(c.x+(this.RTL?-Blockly.BlockSvg.NOTCH_WIDTH:Blockly.BlockSvg.NOTCH_WIDTH),c.y));a.push("H",d);b.push("H",d-.5);this.width=d};
-Blockly.BlockSvg.prototype.renderDrawRight_=function(a,b,c,d,f,g,h){for(var k,l=0,m,r,n=0,q;q=g[n];n++){k=Blockly.BlockSvg.SEP_SPACE_X;0==n&&(k+=this.RTL?-h:h);b.push("M",g.rightEdge-.5+","+(l+.5));if(this.isCollapsed()){var p=q[0];m=l;this.renderFields_(p.fieldRow,k,m);a.push(Blockly.BlockSvg.JAGGED_TEETH);b.push("h 8");p=q.height-Blockly.BlockSvg.JAGGED_TEETH_HEIGHT;a.push("v",p);this.RTL&&(b.push("v 3.9 l 7.2,3.4 m -14.5,8.9 l 7.3,3.5"),b.push("v",p-.7));this.width+=Blockly.BlockSvg.JAGGED_TEETH_WIDTH}else if(q.type==
-Blockly.BlockSvg.INLINE){for(var t=0;p=q[t];t++)m=l,q.thicker&&(m+=Blockly.BlockSvg.INLINE_PADDING_Y),k=this.renderFields_(p.fieldRow,k,m),p.type!=Blockly.DUMMY_INPUT&&(k+=p.renderWidth+Blockly.BlockSvg.SEP_SPACE_X),p.type==Blockly.INPUT_VALUE&&(c.push("M",k-Blockly.BlockSvg.SEP_SPACE_X+","+(l+Blockly.BlockSvg.INLINE_PADDING_Y)),c.push("h",Blockly.BlockSvg.TAB_WIDTH-2-p.renderWidth),c.push(Blockly.BlockSvg.TAB_PATH_DOWN),c.push("v",p.renderHeight+1-Blockly.BlockSvg.TAB_HEIGHT),c.push("h",p.renderWidth+
-2-Blockly.BlockSvg.TAB_WIDTH),c.push("z"),this.RTL?(d.push("M",k-Blockly.BlockSvg.SEP_SPACE_X-2.5+Blockly.BlockSvg.TAB_WIDTH-p.renderWidth+","+(l+Blockly.BlockSvg.INLINE_PADDING_Y+.5)),d.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),d.push("v",p.renderHeight-Blockly.BlockSvg.TAB_HEIGHT+2.5),d.push("h",p.renderWidth-Blockly.BlockSvg.TAB_WIDTH+2)):(d.push("M",k-Blockly.BlockSvg.SEP_SPACE_X+.5+","+(l+Blockly.BlockSvg.INLINE_PADDING_Y+.5)),d.push("v",p.renderHeight+1),d.push("h",Blockly.BlockSvg.TAB_WIDTH-
-2-p.renderWidth),d.push("M",k-p.renderWidth-Blockly.BlockSvg.SEP_SPACE_X+.9+","+(l+Blockly.BlockSvg.INLINE_PADDING_Y+Blockly.BlockSvg.TAB_HEIGHT-.7)),d.push("l",.46*Blockly.BlockSvg.TAB_WIDTH+",-2.1")),m=this.RTL?f.x-k-Blockly.BlockSvg.TAB_WIDTH+Blockly.BlockSvg.SEP_SPACE_X+p.renderWidth+1:f.x+k+Blockly.BlockSvg.TAB_WIDTH-Blockly.BlockSvg.SEP_SPACE_X-p.renderWidth-1,r=f.y+l+Blockly.BlockSvg.INLINE_PADDING_Y+1,p.connection.moveTo(m,r),p.connection.isConnected()&&p.connection.tighten_());k=Math.max(k,
-g.rightEdge);this.width=Math.max(this.width,k);a.push("H",k);b.push("H",k-.5);a.push("v",q.height);this.RTL&&b.push("v",q.height-1)}else q.type==Blockly.INPUT_VALUE?(p=q[0],m=l,p.align!=Blockly.ALIGN_LEFT&&(t=g.rightEdge-p.fieldWidth-Blockly.BlockSvg.TAB_WIDTH-2*Blockly.BlockSvg.SEP_SPACE_X,p.align==Blockly.ALIGN_RIGHT?k+=t:p.align==Blockly.ALIGN_CENTRE&&(k+=t/2)),this.renderFields_(p.fieldRow,k,m),a.push(Blockly.BlockSvg.TAB_PATH_DOWN),t=q.height-Blockly.BlockSvg.TAB_HEIGHT,a.push("v",t),this.RTL?
-(b.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),b.push("v",t+.5)):(b.push("M",g.rightEdge-5+","+(l+Blockly.BlockSvg.TAB_HEIGHT-.7)),b.push("l",.46*Blockly.BlockSvg.TAB_WIDTH+",-2.1")),m=f.x+(this.RTL?-g.rightEdge-1:g.rightEdge+1),r=f.y+l,p.connection.moveTo(m,r),p.connection.isConnected()&&(p.connection.tighten_(),this.width=Math.max(this.width,g.rightEdge+p.connection.targetBlock().getHeightWidth().width-Blockly.BlockSvg.TAB_WIDTH+1))):q.type==Blockly.DUMMY_INPUT?(p=q[0],m=l,p.align!=Blockly.ALIGN_LEFT&&
-(t=g.rightEdge-p.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,g.hasValue&&(t-=Blockly.BlockSvg.TAB_WIDTH),p.align==Blockly.ALIGN_RIGHT?k+=t:p.align==Blockly.ALIGN_CENTRE&&(k+=t/2)),this.renderFields_(p.fieldRow,k,m),a.push("v",q.height),this.RTL&&b.push("v",q.height-1)):q.type==Blockly.NEXT_STATEMENT&&(p=q[0],0==n&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),this.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),l+=Blockly.BlockSvg.SEP_SPACE_Y),m=l,p.align!=Blockly.ALIGN_LEFT&&(t=g.statementEdge-p.fieldWidth-
-2*Blockly.BlockSvg.SEP_SPACE_X,p.align==Blockly.ALIGN_RIGHT?k+=t:p.align==Blockly.ALIGN_CENTRE&&(k+=t/2)),this.renderFields_(p.fieldRow,k,m),k=g.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH,a.push("H",k),a.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER),a.push("v",q.height-2*Blockly.BlockSvg.CORNER_RADIUS),a.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER),a.push("H",g.rightEdge),this.RTL?(b.push("M",k-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(l+Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),
-b.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL),b.push("v",q.height-2*Blockly.BlockSvg.CORNER_RADIUS),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL)):(b.push("M",k-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(l+q.height-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR)),b.push("H",g.rightEdge-.5),m=f.x+(this.RTL?-k:k+1),r=f.y+l+1,p.connection.moveTo(m,r),p.connection.isConnected()&&(p.connection.tighten_(),
-this.width=Math.max(this.width,g.statementEdge+p.connection.targetBlock().getHeightWidth().width)),n==g.length-1||g[n+1].type==Blockly.NEXT_STATEMENT)&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),this.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),l+=Blockly.BlockSvg.SEP_SPACE_Y);l+=q.height}g.length||(l=Blockly.BlockSvg.MIN_BLOCK_Y,a.push("V",l),this.RTL&&b.push("V",l-1));return l};
+Blockly.BlockSvg.prototype.renderDrawRight_=function(a,b,c,d,e,f,g){for(var h,k=0,l,q,m=0,p;p=f[m];m++){h=Blockly.BlockSvg.SEP_SPACE_X;0==m&&(h+=this.RTL?-g:g);b.push("M",f.rightEdge-.5+","+(k+.5));if(this.isCollapsed()){var n=p[0];l=k;this.renderFields_(n.fieldRow,h,l);a.push(Blockly.BlockSvg.JAGGED_TEETH);b.push("h 8");n=p.height-Blockly.BlockSvg.JAGGED_TEETH_HEIGHT;a.push("v",n);this.RTL&&(b.push("v 3.9 l 7.2,3.4 m -14.5,8.9 l 7.3,3.5"),b.push("v",n-.7));this.width+=Blockly.BlockSvg.JAGGED_TEETH_WIDTH}else if(p.type==
+Blockly.BlockSvg.INLINE){for(var r=0;n=p[r];r++)l=k,p.thicker&&(l+=Blockly.BlockSvg.INLINE_PADDING_Y),h=this.renderFields_(n.fieldRow,h,l),n.type!=Blockly.DUMMY_INPUT&&(h+=n.renderWidth+Blockly.BlockSvg.SEP_SPACE_X),n.type==Blockly.INPUT_VALUE&&(c.push("M",h-Blockly.BlockSvg.SEP_SPACE_X+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y)),c.push("h",Blockly.BlockSvg.TAB_WIDTH-2-n.renderWidth),c.push(Blockly.BlockSvg.TAB_PATH_DOWN),c.push("v",n.renderHeight+1-Blockly.BlockSvg.TAB_HEIGHT),c.push("h",n.renderWidth+
+2-Blockly.BlockSvg.TAB_WIDTH),c.push("z"),this.RTL?(d.push("M",h-Blockly.BlockSvg.SEP_SPACE_X-2.5+Blockly.BlockSvg.TAB_WIDTH-n.renderWidth+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y+.5)),d.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),d.push("v",n.renderHeight-Blockly.BlockSvg.TAB_HEIGHT+2.5),d.push("h",n.renderWidth-Blockly.BlockSvg.TAB_WIDTH+2)):(d.push("M",h-Blockly.BlockSvg.SEP_SPACE_X+.5+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y+.5)),d.push("v",n.renderHeight+1),d.push("h",Blockly.BlockSvg.TAB_WIDTH-
+2-n.renderWidth),d.push("M",h-n.renderWidth-Blockly.BlockSvg.SEP_SPACE_X+.9+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y+Blockly.BlockSvg.TAB_HEIGHT-.7)),d.push("l",.46*Blockly.BlockSvg.TAB_WIDTH+",-2.1")),l=this.RTL?e.x-h-Blockly.BlockSvg.TAB_WIDTH+Blockly.BlockSvg.SEP_SPACE_X+n.renderWidth+1:e.x+h+Blockly.BlockSvg.TAB_WIDTH-Blockly.BlockSvg.SEP_SPACE_X-n.renderWidth-1,q=e.y+k+Blockly.BlockSvg.INLINE_PADDING_Y+1,n.connection.moveTo(l,q),n.connection.isConnected()&&n.connection.tighten_());h=Math.max(h,
+f.rightEdge);this.width=Math.max(this.width,h);a.push("H",h);b.push("H",h-.5);a.push("v",p.height);this.RTL&&b.push("v",p.height-1)}else p.type==Blockly.INPUT_VALUE?(n=p[0],l=k,n.align!=Blockly.ALIGN_LEFT&&(r=f.rightEdge-n.fieldWidth-Blockly.BlockSvg.TAB_WIDTH-2*Blockly.BlockSvg.SEP_SPACE_X,n.align==Blockly.ALIGN_RIGHT?h+=r:n.align==Blockly.ALIGN_CENTRE&&(h+=r/2)),this.renderFields_(n.fieldRow,h,l),a.push(Blockly.BlockSvg.TAB_PATH_DOWN),r=p.height-Blockly.BlockSvg.TAB_HEIGHT,a.push("v",r),this.RTL?
+(b.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),b.push("v",r+.5)):(b.push("M",f.rightEdge-5+","+(k+Blockly.BlockSvg.TAB_HEIGHT-.7)),b.push("l",.46*Blockly.BlockSvg.TAB_WIDTH+",-2.1")),l=e.x+(this.RTL?-f.rightEdge-1:f.rightEdge+1),q=e.y+k,n.connection.moveTo(l,q),n.connection.isConnected()&&(n.connection.tighten_(),this.width=Math.max(this.width,f.rightEdge+n.connection.targetBlock().getHeightWidth().width-Blockly.BlockSvg.TAB_WIDTH+1))):p.type==Blockly.DUMMY_INPUT?(n=p[0],l=k,n.align!=Blockly.ALIGN_LEFT&&
+(r=f.rightEdge-n.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,f.hasValue&&(r-=Blockly.BlockSvg.TAB_WIDTH),n.align==Blockly.ALIGN_RIGHT?h+=r:n.align==Blockly.ALIGN_CENTRE&&(h+=r/2)),this.renderFields_(n.fieldRow,h,l),a.push("v",p.height),this.RTL&&b.push("v",p.height-1)):p.type==Blockly.NEXT_STATEMENT&&(n=p[0],0==m&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),this.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),k+=Blockly.BlockSvg.SEP_SPACE_Y),l=k,n.align!=Blockly.ALIGN_LEFT&&(r=f.statementEdge-n.fieldWidth-
+2*Blockly.BlockSvg.SEP_SPACE_X,n.align==Blockly.ALIGN_RIGHT?h+=r:n.align==Blockly.ALIGN_CENTRE&&(h+=r/2)),this.renderFields_(n.fieldRow,h,l),h=f.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH,a.push("H",h),a.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER),a.push("v",p.height-2*Blockly.BlockSvg.CORNER_RADIUS),a.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER),a.push("H",f.rightEdge),this.RTL?(b.push("M",h-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(k+Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),
+b.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL),b.push("v",p.height-2*Blockly.BlockSvg.CORNER_RADIUS),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL)):(b.push("M",h-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(k+p.height-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR)),b.push("H",f.rightEdge-.5),l=e.x+(this.RTL?-h:h+1),q=e.y+k+1,n.connection.moveTo(l,q),n.connection.isConnected()&&(n.connection.tighten_(),
+this.width=Math.max(this.width,f.statementEdge+n.connection.targetBlock().getHeightWidth().width)),m==f.length-1||f[m+1].type==Blockly.NEXT_STATEMENT)&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),this.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),k+=Blockly.BlockSvg.SEP_SPACE_Y);k+=p.height}f.length||(k=Blockly.BlockSvg.MIN_BLOCK_Y,a.push("V",k),this.RTL&&b.push("V",k-1));return k};
 Blockly.BlockSvg.prototype.renderDrawBottom_=function(a,b,c,d){this.height=d+1;this.nextConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH+(this.RTL?.5:-.5)+" "+Blockly.BlockSvg.NOTCH_PATH_RIGHT),this.nextConnection.moveTo(this.RTL?c.x-Blockly.BlockSvg.NOTCH_WIDTH:c.x+Blockly.BlockSvg.NOTCH_WIDTH,c.y+d+1),this.nextConnection.isConnected()&&this.nextConnection.tighten_(),this.height+=4);this.squareBottomLeftCorner_?(a.push("H 0"),this.RTL||b.push("M","0.5,"+(d-.5))):(a.push("H",Blockly.BlockSvg.CORNER_RADIUS),
 a.push("a",Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,1 -"+Blockly.BlockSvg.CORNER_RADIUS+",-"+Blockly.BlockSvg.CORNER_RADIUS),this.RTL||(b.push("M",Blockly.BlockSvg.DISTANCE_45_INSIDE+","+(d-Blockly.BlockSvg.DISTANCE_45_INSIDE)),b.push("A",Blockly.BlockSvg.CORNER_RADIUS-.5+","+(Blockly.BlockSvg.CORNER_RADIUS-.5)+" 0 0,1 0.5,"+(d-Blockly.BlockSvg.CORNER_RADIUS))))};
 Blockly.BlockSvg.prototype.renderDrawLeft_=function(a,b,c,d){this.outputConnection?(this.outputConnection.moveTo(c.x,c.y),a.push("V",Blockly.BlockSvg.TAB_HEIGHT),a.push("c 0,-10 -"+Blockly.BlockSvg.TAB_WIDTH+",8 -"+Blockly.BlockSvg.TAB_WIDTH+",-7.5 s "+Blockly.BlockSvg.TAB_WIDTH+",2.5 "+Blockly.BlockSvg.TAB_WIDTH+",-7.5"),this.RTL?(b.push("M",-.25*Blockly.BlockSvg.TAB_WIDTH+",8.4"),b.push("l",-.45*Blockly.BlockSvg.TAB_WIDTH+",-2.1")):(b.push("V",Blockly.BlockSvg.TAB_HEIGHT-1.5),b.push("m",-.92*Blockly.BlockSvg.TAB_WIDTH+
 ",-0.5 q "+-.19*Blockly.BlockSvg.TAB_WIDTH+",-5.5 0,-11"),b.push("m",.92*Blockly.BlockSvg.TAB_WIDTH+",1 V 0.5 H 1")),this.width+=Blockly.BlockSvg.TAB_WIDTH):this.RTL||(this.squareTopLeftCorner_?b.push("V",.5):b.push("V",Blockly.BlockSvg.CORNER_RADIUS));a.push("z")};Blockly.Events={};Blockly.Events.group_="";Blockly.Events.recordUndo=!0;Blockly.Events.disabled_=0;Blockly.Events.CREATE="create";Blockly.Events.DELETE="delete";Blockly.Events.CHANGE="change";Blockly.Events.MOVE="move";Blockly.Events.UI="ui";Blockly.Events.FIRE_QUEUE_=[];Blockly.Events.fire=function(a){Blockly.Events.isEnabled()&&(Blockly.Events.FIRE_QUEUE_.length||setTimeout(Blockly.Events.fireNow_,0),Blockly.Events.FIRE_QUEUE_.push(a))};
 Blockly.Events.fireNow_=function(){for(var a=Blockly.Events.filter(Blockly.Events.FIRE_QUEUE_,!0),b=Blockly.Events.FIRE_QUEUE_.length=0,c;c=a[b];b++){var d=Blockly.Workspace.getById(c.workspaceId);d&&d.fireChangeListener(c)}};
-Blockly.Events.filter=function(a,b){var c=goog.array.clone(a);b||c.reverse();for(var d=0,f;f=c[d];d++)for(var g=d+1,h;h=c[g];g++)f.type==h.type&&f.blockId==h.blockId&&f.workspaceId==h.workspaceId&&(f.type==Blockly.Events.MOVE?(f.newParentId=h.newParentId,f.newInputName=h.newInputName,f.newCoordinate=h.newCoordinate,c.splice(g,1),g--):f.type==Blockly.Events.CHANGE&&f.element==h.element&&f.name==h.name?(f.newValue=h.newValue,c.splice(g,1),g--):f.type!=Blockly.Events.UI||"click"!=h.element||"commentOpen"!=
-f.element&&"mutatorOpen"!=f.element&&"warningOpen"!=f.element||(f.newValue=h.newValue,c.splice(g,1),g--));for(d=c.length-1;0<=d;d--)c[d].isNull()&&c.splice(d,1);b||c.reverse();for(d=1;f=c[d];d++)f.type==Blockly.Events.CHANGE&&"mutation"==f.element&&c.unshift(c.splice(d,1)[0]);return c};Blockly.Events.clearPendingUndo=function(){for(var a=0,b;b=Blockly.Events.FIRE_QUEUE_[a];a++)b.recordUndo=!1};Blockly.Events.disable=function(){Blockly.Events.disabled_++};Blockly.Events.enable=function(){Blockly.Events.disabled_--};
+Blockly.Events.filter=function(a,b){var c=goog.array.clone(a);b||c.reverse();for(var d=0,e;e=c[d];d++)for(var f=d+1,g;g=c[f];f++)e.type==g.type&&e.blockId==g.blockId&&e.workspaceId==g.workspaceId&&(e.type==Blockly.Events.MOVE?(e.newParentId=g.newParentId,e.newInputName=g.newInputName,e.newCoordinate=g.newCoordinate,c.splice(f,1),f--):e.type==Blockly.Events.CHANGE&&e.element==g.element&&e.name==g.name?(e.newValue=g.newValue,c.splice(f,1),f--):e.type!=Blockly.Events.UI||"click"!=g.element||"commentOpen"!=
+e.element&&"mutatorOpen"!=e.element&&"warningOpen"!=e.element||(e.newValue=g.newValue,c.splice(f,1),f--));for(d=c.length-1;0<=d;d--)c[d].isNull()&&c.splice(d,1);b||c.reverse();for(d=1;e=c[d];d++)e.type==Blockly.Events.CHANGE&&"mutation"==e.element&&c.unshift(c.splice(d,1)[0]);return c};Blockly.Events.clearPendingUndo=function(){for(var a=0,b;b=Blockly.Events.FIRE_QUEUE_[a];a++)b.recordUndo=!1};Blockly.Events.disable=function(){Blockly.Events.disabled_++};Blockly.Events.enable=function(){Blockly.Events.disabled_--};
 Blockly.Events.isEnabled=function(){return 0==Blockly.Events.disabled_};Blockly.Events.getGroup=function(){return Blockly.Events.group_};Blockly.Events.setGroup=function(a){Blockly.Events.group_="boolean"==typeof a?a?Blockly.genUid():"":a};Blockly.Events.getDescendantIds_=function(a){var b=[];a=a.getDescendants();for(var c=0,d;d=a[c];c++)b[c]=d.id;return b};
 Blockly.Events.fromJson=function(a,b){var c;switch(a.type){case Blockly.Events.CREATE:c=new Blockly.Events.Create(null);break;case Blockly.Events.DELETE:c=new Blockly.Events.Delete(null);break;case Blockly.Events.CHANGE:c=new Blockly.Events.Change(null);break;case Blockly.Events.MOVE:c=new Blockly.Events.Move(null);break;case Blockly.Events.UI:c=new Blockly.Events.Ui(null);break;default:throw"Unknown event type.";}c.fromJson(a);c.workspaceId=b.id;return c};
 Blockly.Events.Abstract=function(a){a&&(this.blockId=a.id,this.workspaceId=a.workspace.id);this.group=Blockly.Events.group_;this.recordUndo=Blockly.Events.recordUndo};Blockly.Events.Abstract.prototype.toJson=function(){var a={type:this.type,blockId:this.blockId};this.group&&(a.group=this.group);return a};Blockly.Events.Abstract.prototype.fromJson=function(a){this.blockId=a.blockId;this.group=a.group};Blockly.Events.Abstract.prototype.isNull=function(){return!1};
@@ -1204,7 +1203,7 @@ Blockly.Events.Create.prototype.toJson=function(){var a=Blockly.Events.Create.su
 Blockly.Events.Create.prototype.run=function(a){var b=Blockly.Workspace.getById(this.workspaceId);if(a)a=goog.dom.createDom("xml"),a.appendChild(this.xml),Blockly.Xml.domToWorkspace(a,b);else{a=0;for(var c;c=this.ids[a];a++){var d=b.getBlockById(c);d?d.dispose(!1,!0):c==this.blockId&&console.warn("Can't uncreate non-existant block: "+c)}}};
 Blockly.Events.Delete=function(a){if(a){if(a.getParent())throw"Connected blocks cannot be deleted.";Blockly.Events.Delete.superClass_.constructor.call(this,a);this.oldXml=Blockly.Xml.blockToDomWithXY(a);this.ids=Blockly.Events.getDescendantIds_(a)}};goog.inherits(Blockly.Events.Delete,Blockly.Events.Abstract);Blockly.Events.Delete.prototype.type=Blockly.Events.DELETE;Blockly.Events.Delete.prototype.toJson=function(){var a=Blockly.Events.Delete.superClass_.toJson.call(this);a.ids=this.ids;return a};
 Blockly.Events.Delete.prototype.fromJson=function(a){Blockly.Events.Delete.superClass_.fromJson.call(this,a);this.ids=a.ids};Blockly.Events.Delete.prototype.run=function(a){var b=Blockly.Workspace.getById(this.workspaceId);if(a){a=0;for(var c;c=this.ids[a];a++){var d=b.getBlockById(c);d?d.dispose(!1,!0):c==this.blockId&&console.warn("Can't delete non-existant block: "+c)}}else a=goog.dom.createDom("xml"),a.appendChild(this.oldXml),Blockly.Xml.domToWorkspace(a,b)};
-Blockly.Events.Change=function(a,b,c,d,f){a&&(Blockly.Events.Change.superClass_.constructor.call(this,a),this.element=b,this.name=c,this.oldValue=d,this.newValue=f)};goog.inherits(Blockly.Events.Change,Blockly.Events.Abstract);Blockly.Events.Change.prototype.type=Blockly.Events.CHANGE;Blockly.Events.Change.prototype.toJson=function(){var a=Blockly.Events.Change.superClass_.toJson.call(this);a.element=this.element;this.name&&(a.name=this.name);a.newValue=this.newValue;return a};
+Blockly.Events.Change=function(a,b,c,d,e){a&&(Blockly.Events.Change.superClass_.constructor.call(this,a),this.element=b,this.name=c,this.oldValue=d,this.newValue=e)};goog.inherits(Blockly.Events.Change,Blockly.Events.Abstract);Blockly.Events.Change.prototype.type=Blockly.Events.CHANGE;Blockly.Events.Change.prototype.toJson=function(){var a=Blockly.Events.Change.superClass_.toJson.call(this);a.element=this.element;this.name&&(a.name=this.name);a.newValue=this.newValue;return a};
 Blockly.Events.Change.prototype.fromJson=function(a){Blockly.Events.Change.superClass_.fromJson.call(this,a);this.element=a.element;this.name=a.name;this.newValue=a.newValue};Blockly.Events.Change.prototype.isNull=function(){return this.oldValue==this.newValue};
 Blockly.Events.Change.prototype.run=function(a){var b=Blockly.Workspace.getById(this.workspaceId).getBlockById(this.blockId);if(b)switch(b.mutator&&b.mutator.setVisible(!1),a=a?this.newValue:this.oldValue,this.element){case "field":(b=b.getField(this.name))?b.setValue(a):console.warn("Can't set non-existant field: "+this.name);break;case "comment":b.setCommentText(a||null);break;case "collapsed":b.setCollapsed(a);break;case "disabled":b.setDisabled(a);break;case "inline":b.setInputsInline(a);break;
 case "mutation":var c="";b.mutationToDom&&(c=(c=b.mutationToDom())&&Blockly.Xml.domToText(c));if(b.domToMutation){a=a||"<mutation></mutation>";var d=Blockly.Xml.textToDom("<xml>"+a+"</xml>");b.domToMutation(d.firstChild)}Blockly.Events.fire(new Blockly.Events.Change(b,"mutation",null,c,a));break;default:console.warn("Unknown change type: "+this.element)}else console.warn("Can't change non-existant block: "+this.blockId)};
@@ -1212,8 +1211,8 @@ Blockly.Events.Move=function(a){a&&(Blockly.Events.Move.superClass_.constructor.
 Blockly.Events.Move.prototype.toJson=function(){var a=Blockly.Events.Move.superClass_.toJson.call(this);this.newParentId&&(a.newParentId=this.newParentId);this.newInputName&&(a.newInputName=this.newInputName);this.newCoordinate&&(a.newCoordinate=Math.round(this.newCoordinate.x)+","+Math.round(this.newCoordinate.y));return a};
 Blockly.Events.Move.prototype.fromJson=function(a){Blockly.Events.Move.superClass_.fromJson.call(this,a);this.newParentId=a.newParentId;this.newInputName=a.newInputName;a.newCoordinate&&(a=a.newCoordinate.split(","),this.newCoordinate=new goog.math.Coordinate(parseFloat(a[0]),parseFloat(a[1])))};Blockly.Events.Move.prototype.recordNew=function(){var a=this.currentLocation_();this.newParentId=a.parentId;this.newInputName=a.inputName;this.newCoordinate=a.coordinate};
 Blockly.Events.Move.prototype.currentLocation_=function(){var a=Blockly.Workspace.getById(this.workspaceId).getBlockById(this.blockId),b={},c=a.getParent();if(c){if(b.parentId=c.id,a=c.getInputWithBlock(a))b.inputName=a.name}else b.coordinate=a.getRelativeToSurfaceXY();return b};Blockly.Events.Move.prototype.isNull=function(){return this.oldParentId==this.newParentId&&this.oldInputName==this.newInputName&&goog.math.Coordinate.equals(this.oldCoordinate,this.newCoordinate)};
-Blockly.Events.Move.prototype.run=function(a){var b=Blockly.Workspace.getById(this.workspaceId),c=b.getBlockById(this.blockId);if(c){var d=a?this.newParentId:this.oldParentId,f=a?this.newInputName:this.oldInputName;a=a?this.newCoordinate:this.oldCoordinate;var g=null;if(d&&(g=b.getBlockById(d),!g)){console.warn("Can't connect to non-existant block: "+d);return}c.getParent()&&c.unplug();if(a)f=c.getRelativeToSurfaceXY(),c.moveBy(a.x-f.x,a.y-f.y);else{var c=c.outputConnection||c.previousConnection,
-h;if(f){if(b=g.getInput(f))h=b.connection}else c.type==Blockly.PREVIOUS_STATEMENT&&(h=g.nextConnection);h?c.connect(h):console.warn("Can't connect to non-existant input: "+f)}}else console.warn("Can't move non-existant block: "+this.blockId)};Blockly.Events.Ui=function(a,b,c,d){Blockly.Events.Ui.superClass_.constructor.call(this,a);this.element=b;this.oldValue=c;this.newValue=d;this.recordUndo=!1};goog.inherits(Blockly.Events.Ui,Blockly.Events.Abstract);Blockly.Events.Ui.prototype.type=Blockly.Events.UI;
+Blockly.Events.Move.prototype.run=function(a){var b=Blockly.Workspace.getById(this.workspaceId),c=b.getBlockById(this.blockId);if(c){var d=a?this.newParentId:this.oldParentId,e=a?this.newInputName:this.oldInputName;a=a?this.newCoordinate:this.oldCoordinate;var f=null;if(d&&(f=b.getBlockById(d),!f)){console.warn("Can't connect to non-existant block: "+d);return}c.getParent()&&c.unplug();if(a)e=c.getRelativeToSurfaceXY(),c.moveBy(a.x-e.x,a.y-e.y);else{var c=c.outputConnection||c.previousConnection,
+g;if(e){if(b=f.getInput(e))g=b.connection}else c.type==Blockly.PREVIOUS_STATEMENT&&(g=f.nextConnection);g?c.connect(g):console.warn("Can't connect to non-existant input: "+e)}}else console.warn("Can't move non-existant block: "+this.blockId)};Blockly.Events.Ui=function(a,b,c,d){Blockly.Events.Ui.superClass_.constructor.call(this,a);this.element=b;this.oldValue=c;this.newValue=d;this.recordUndo=!1};goog.inherits(Blockly.Events.Ui,Blockly.Events.Abstract);Blockly.Events.Ui.prototype.type=Blockly.Events.UI;
 Blockly.Events.Ui.prototype.toJson=function(){var a=Blockly.Events.Ui.superClass_.toJson.call(this);a.element=this.element;void 0!==this.newValue&&(a.newValue=this.newValue);return a};Blockly.Events.Ui.prototype.fromJson=function(a){Blockly.Events.Ui.superClass_.fromJson.call(this,a);this.element=a.element;this.newValue=a.newValue};Blockly.Msg={};goog.getMsgOrig=goog.getMsg;goog.getMsg=function(a,b){var c=goog.getMsg.blocklyMsgMap[a];c&&(a=Blockly.Msg[c]);return goog.getMsgOrig(a,b)};goog.getMsg.blocklyMsgMap={Today:"TODAY"};Blockly.FieldTextInput=function(a,b){Blockly.FieldTextInput.superClass_.constructor.call(this,a,b)};goog.inherits(Blockly.FieldTextInput,Blockly.Field);Blockly.FieldTextInput.FONTSIZE=11;Blockly.FieldTextInput.prototype.CURSOR="text";Blockly.FieldTextInput.prototype.spellcheck_=!0;Blockly.FieldTextInput.prototype.dispose=function(){Blockly.WidgetDiv.hideIfOwner(this);Blockly.FieldTextInput.superClass_.dispose.call(this)};
 Blockly.FieldTextInput.prototype.setValue=function(a){if(null!==a){if(this.sourceBlock_&&this.validator_){var b=this.validator_(a);null!==b&&void 0!==b&&(a=b)}Blockly.Field.prototype.setValue.call(this,a)}};Blockly.FieldTextInput.prototype.setSpellcheck=function(a){this.spellcheck_=a};
 Blockly.FieldTextInput.prototype.showEditor_=function(a){this.workspace_=this.sourceBlock_.workspace;a=a||!1;if(!a&&(goog.userAgent.MOBILE||goog.userAgent.ANDROID||goog.userAgent.IPAD)){a=window.prompt(Blockly.Msg.CHANGE_VALUE_TITLE,this.text_);if(this.sourceBlock_&&this.validator_){var b=this.validator_(a);void 0!==b&&(a=b)}this.setValue(a)}else{Blockly.WidgetDiv.show(this,this.sourceBlock_.RTL,this.widgetDispose_());var b=Blockly.WidgetDiv.DIV,c=goog.dom.createDom("input","blocklyHtmlInput");c.setAttribute("spellcheck",
@@ -1231,40 +1230,40 @@ Blockly.FieldAngle.prototype.showEditor_=function(){Blockly.FieldAngle.superClas
 (0==c%45?10:5),y2:Blockly.FieldAngle.HALF,"class":"blocklyAngleMarks",transform:"rotate("+c+","+Blockly.FieldAngle.HALF+","+Blockly.FieldAngle.HALF+")"},a);a.style.marginLeft=15-Blockly.FieldAngle.RADIUS+"px";this.clickWrapper_=Blockly.bindEvent_(a,"click",this,Blockly.WidgetDiv.hide);this.moveWrapper1_=Blockly.bindEvent_(b,"mousemove",this,this.onMouseMove);this.moveWrapper2_=Blockly.bindEvent_(this.gauge_,"mousemove",this,this.onMouseMove);this.updateGraph_()}};
 Blockly.FieldAngle.prototype.onMouseMove=function(a){var b=this.gauge_.ownerSVGElement.getBoundingClientRect(),c=a.clientX-b.left-Blockly.FieldAngle.HALF;a=a.clientY-b.top-Blockly.FieldAngle.HALF;b=Math.atan(-a/c);isNaN(b)||(b=goog.math.toDegrees(b),0>c?b+=180:0<a&&(b+=360),b=Blockly.FieldAngle.CLOCKWISE?Blockly.FieldAngle.OFFSET+360-b:b-Blockly.FieldAngle.OFFSET,Blockly.FieldAngle.ROUND&&(b=Math.round(b/Blockly.FieldAngle.ROUND)*Blockly.FieldAngle.ROUND),b=Blockly.FieldAngle.angleValidator(b),Blockly.FieldTextInput.htmlInput_.value=
 b,this.setValue(b),this.validate_(),this.resizeEditor_())};Blockly.FieldAngle.prototype.setText=function(a){Blockly.FieldAngle.superClass_.setText.call(this,a);this.textElement_&&(this.updateGraph_(),this.sourceBlock_.RTL?this.textElement_.insertBefore(this.symbol_,this.textElement_.firstChild):this.textElement_.appendChild(this.symbol_),this.size_.width=0)};
-Blockly.FieldAngle.prototype.updateGraph_=function(){if(this.gauge_){var a=Number(this.getText())+Blockly.FieldAngle.OFFSET,b=goog.math.toRadians(a),a=["M ",Blockly.FieldAngle.HALF,",",Blockly.FieldAngle.HALF],c=Blockly.FieldAngle.HALF,d=Blockly.FieldAngle.HALF;if(!isNaN(b)){var f=goog.math.toRadians(Blockly.FieldAngle.OFFSET),g=Math.cos(f)*Blockly.FieldAngle.RADIUS,h=Math.sin(f)*-Blockly.FieldAngle.RADIUS;Blockly.FieldAngle.CLOCKWISE&&(b=2*f-b);c+=Math.cos(b)*Blockly.FieldAngle.RADIUS;d-=Math.sin(b)*
-Blockly.FieldAngle.RADIUS;b=Math.abs(Math.floor((b-f)/Math.PI)%2);Blockly.FieldAngle.CLOCKWISE&&(b=1-b);a.push(" l ",g,",",h," A ",Blockly.FieldAngle.RADIUS,",",Blockly.FieldAngle.RADIUS," 0 ",b," ",Number(Blockly.FieldAngle.CLOCKWISE)," ",c,",",d," z")}this.gauge_.setAttribute("d",a.join(""));this.line_.setAttribute("x2",c);this.line_.setAttribute("y2",d)}};
+Blockly.FieldAngle.prototype.updateGraph_=function(){if(this.gauge_){var a=Number(this.getText())+Blockly.FieldAngle.OFFSET,b=goog.math.toRadians(a),a=["M ",Blockly.FieldAngle.HALF,",",Blockly.FieldAngle.HALF],c=Blockly.FieldAngle.HALF,d=Blockly.FieldAngle.HALF;if(!isNaN(b)){var e=goog.math.toRadians(Blockly.FieldAngle.OFFSET),f=Math.cos(e)*Blockly.FieldAngle.RADIUS,g=Math.sin(e)*-Blockly.FieldAngle.RADIUS;Blockly.FieldAngle.CLOCKWISE&&(b=2*e-b);c+=Math.cos(b)*Blockly.FieldAngle.RADIUS;d-=Math.sin(b)*
+Blockly.FieldAngle.RADIUS;b=Math.abs(Math.floor((b-e)/Math.PI)%2);Blockly.FieldAngle.CLOCKWISE&&(b=1-b);a.push(" l ",f,",",g," A ",Blockly.FieldAngle.RADIUS,",",Blockly.FieldAngle.RADIUS," 0 ",b," ",Number(Blockly.FieldAngle.CLOCKWISE)," ",c,",",d," z")}this.gauge_.setAttribute("d",a.join(""));this.line_.setAttribute("x2",c);this.line_.setAttribute("y2",d)}};
 Blockly.FieldAngle.angleValidator=function(a){a=Blockly.FieldTextInput.numberValidator(a);null!==a&&(a%=360,0>a&&(a+=360),a>Blockly.FieldAngle.WRAP&&(a-=360),a=String(a));return a};Blockly.FieldCheckbox=function(a,b){Blockly.FieldCheckbox.superClass_.constructor.call(this,"",b);this.setValue(a)};goog.inherits(Blockly.FieldCheckbox,Blockly.Field);Blockly.FieldCheckbox.CHECK_CHAR="\u2713";Blockly.FieldCheckbox.prototype.CURSOR="default";
 Blockly.FieldCheckbox.prototype.init=function(a){this.fieldGroup_||(Blockly.FieldCheckbox.superClass_.init.call(this,a),this.checkElement_=Blockly.createSvgElement("text",{"class":"blocklyText blocklyCheckbox",x:-3,y:14},this.fieldGroup_),a=document.createTextNode(Blockly.FieldCheckbox.CHECK_CHAR),this.checkElement_.appendChild(a),this.checkElement_.style.display=this.state_?"block":"none")};Blockly.FieldCheckbox.prototype.getValue=function(){return String(this.state_).toUpperCase()};
 Blockly.FieldCheckbox.prototype.setValue=function(a){a="TRUE"==a;this.state_!==a&&(this.sourceBlock_&&Blockly.Events.isEnabled()&&Blockly.Events.fire(new Blockly.Events.Change(this.sourceBlock_,"field",this.name,this.state_,a)),this.state_=a,this.checkElement_&&(this.checkElement_.style.display=a?"block":"none"))};Blockly.FieldCheckbox.prototype.showEditor_=function(){var a=!this.state_;if(this.sourceBlock_&&this.validator_){var b=this.validator_(a);void 0!==b&&(a=b)}null!==a&&this.setValue(String(a).toUpperCase())};Blockly.FieldColour=function(a,b){Blockly.FieldColour.superClass_.constructor.call(this,a,b);this.setText(Blockly.Field.NBSP+Blockly.Field.NBSP+Blockly.Field.NBSP)};goog.inherits(Blockly.FieldColour,Blockly.Field);Blockly.FieldColour.prototype.colours_=null;Blockly.FieldColour.prototype.columns_=0;Blockly.FieldColour.prototype.init=function(a){Blockly.FieldColour.superClass_.init.call(this,a);this.borderRect_.style.fillOpacity=1;this.setValue(this.getValue())};
 Blockly.FieldColour.prototype.CURSOR="default";Blockly.FieldColour.prototype.dispose=function(){Blockly.WidgetDiv.hideIfOwner(this);Blockly.FieldColour.superClass_.dispose.call(this)};Blockly.FieldColour.prototype.getValue=function(){return this.colour_};
 Blockly.FieldColour.prototype.setValue=function(a){this.sourceBlock_&&Blockly.Events.isEnabled()&&this.colour_!=a&&Blockly.Events.fire(new Blockly.Events.Change(this.sourceBlock_,"field",this.name,this.colour_,a));this.colour_=a;this.borderRect_&&(this.borderRect_.style.fill=a)};Blockly.FieldColour.prototype.getText=function(){var a=this.colour_,b=a.match(/^#(.)\1(.)\2(.)\3$/);b&&(a="#"+b[1]+b[2]+b[3]);return a};Blockly.FieldColour.COLOURS=goog.ui.ColorPicker.SIMPLE_GRID_COLORS;
 Blockly.FieldColour.COLUMNS=7;Blockly.FieldColour.prototype.setColours=function(a){this.colours_=a;return this};Blockly.FieldColour.prototype.setColumns=function(a){this.columns_=a;return this};
-Blockly.FieldColour.prototype.showEditor_=function(){Blockly.WidgetDiv.show(this,this.sourceBlock_.RTL,Blockly.FieldColour.widgetDispose_);var a=new goog.ui.ColorPicker;a.setSize(this.columns_||Blockly.FieldColour.COLUMNS);a.setColors(this.colours_||Blockly.FieldColour.COLOURS);var b=goog.dom.getViewportSize(),c=goog.style.getViewportPageOffset(document),d=this.getAbsoluteXY_(),f=this.getScaledBBox_();a.render(Blockly.WidgetDiv.DIV);a.setSelectedColor(this.getValue());var g=goog.style.getSize(a.getElement());
-d.y=d.y+g.height+f.height>=b.height+c.y?d.y-(g.height-1):d.y+(f.height-1);this.sourceBlock_.RTL?(d.x+=f.width,d.x-=g.width,d.x<c.x&&(d.x=c.x)):d.x>b.width+c.x-g.width&&(d.x=b.width+c.x-g.width);Blockly.WidgetDiv.position(d.x,d.y,b,c,this.sourceBlock_.RTL);var h=this;Blockly.FieldColour.changeEventKey_=goog.events.listen(a,goog.ui.ColorPicker.EventType.CHANGE,function(a){a=a.target.getSelectedColor()||"#000000";Blockly.WidgetDiv.hide();if(h.sourceBlock_&&h.validator_){var b=h.validator_(a);void 0!==
-b&&(a=b)}null!==a&&h.setValue(a)})};Blockly.FieldColour.widgetDispose_=function(){Blockly.FieldColour.changeEventKey_&&goog.events.unlistenByKey(Blockly.FieldColour.changeEventKey_)};Blockly.FieldDropdown=function(a,b){this.menuGenerator_=a;this.trimOptions_();var c=this.getOptions_()[0];Blockly.FieldDropdown.superClass_.constructor.call(this,c[1],b)};goog.inherits(Blockly.FieldDropdown,Blockly.Field);Blockly.FieldDropdown.CHECKMARK_OVERHANG=25;Blockly.FieldDropdown.ARROW_CHAR=goog.userAgent.ANDROID?"\u25bc":"\u25be";Blockly.FieldDropdown.prototype.CURSOR="default";
+Blockly.FieldColour.prototype.showEditor_=function(){Blockly.WidgetDiv.show(this,this.sourceBlock_.RTL,Blockly.FieldColour.widgetDispose_);var a=new goog.ui.ColorPicker;a.setSize(this.columns_||Blockly.FieldColour.COLUMNS);a.setColors(this.colours_||Blockly.FieldColour.COLOURS);var b=goog.dom.getViewportSize(),c=goog.style.getViewportPageOffset(document),d=this.getAbsoluteXY_(),e=this.getScaledBBox_();a.render(Blockly.WidgetDiv.DIV);a.setSelectedColor(this.getValue());var f=goog.style.getSize(a.getElement());
+d.y=d.y+f.height+e.height>=b.height+c.y?d.y-(f.height-1):d.y+(e.height-1);this.sourceBlock_.RTL?(d.x+=e.width,d.x-=f.width,d.x<c.x&&(d.x=c.x)):d.x>b.width+c.x-f.width&&(d.x=b.width+c.x-f.width);Blockly.WidgetDiv.position(d.x,d.y,b,c,this.sourceBlock_.RTL);var g=this;Blockly.FieldColour.changeEventKey_=goog.events.listen(a,goog.ui.ColorPicker.EventType.CHANGE,function(a){a=a.target.getSelectedColor()||"#000000";Blockly.WidgetDiv.hide();if(g.sourceBlock_&&g.validator_){var b=g.validator_(a);void 0!==
+b&&(a=b)}null!==a&&g.setValue(a)})};Blockly.FieldColour.widgetDispose_=function(){Blockly.FieldColour.changeEventKey_&&goog.events.unlistenByKey(Blockly.FieldColour.changeEventKey_)};Blockly.FieldDropdown=function(a,b){this.menuGenerator_=a;this.trimOptions_();var c=this.getOptions_()[0];Blockly.FieldDropdown.superClass_.constructor.call(this,c[1],b)};goog.inherits(Blockly.FieldDropdown,Blockly.Field);Blockly.FieldDropdown.CHECKMARK_OVERHANG=25;Blockly.FieldDropdown.ARROW_CHAR=goog.userAgent.ANDROID?"\u25bc":"\u25be";Blockly.FieldDropdown.prototype.CURSOR="default";
 Blockly.FieldDropdown.prototype.init=function(a){this.fieldGroup_||(this.arrow_=Blockly.createSvgElement("tspan",{},null),this.arrow_.appendChild(document.createTextNode(a.RTL?Blockly.FieldDropdown.ARROW_CHAR+" ":" "+Blockly.FieldDropdown.ARROW_CHAR)),Blockly.FieldDropdown.superClass_.init.call(this,a),a=this.text_,this.text_=null,this.setText(a))};
-Blockly.FieldDropdown.prototype.showEditor_=function(){Blockly.WidgetDiv.show(this,this.sourceBlock_.RTL,null);var a=this,b=new goog.ui.Menu;b.setRightToLeft(this.sourceBlock_.RTL);for(var c=this.getOptions_(),d=0;d<c.length;d++){var f=c[d][1],g=new goog.ui.MenuItem(c[d][0]);g.setRightToLeft(this.sourceBlock_.RTL);g.setValue(f);g.setCheckable(!0);b.addChild(g,!0);g.setChecked(f==this.value_)}goog.events.listen(b,goog.ui.Component.EventType.ACTION,function(b){if(b=b.target){b=b.getValue();if(a.sourceBlock_&&
-a.validator_){var c=a.validator_(b);void 0!==c&&(b=c)}null!==b&&a.setValue(b)}Blockly.WidgetDiv.hideIfOwner(a)});b.getHandler().listen(b.getElement(),goog.events.EventType.TOUCHSTART,function(a){this.getOwnerControl(a.target).handleMouseDown(a)});b.getHandler().listen(b.getElement(),goog.events.EventType.TOUCHEND,function(a){this.getOwnerControl(a.target).performActionInternal(a)});c=goog.dom.getViewportSize();d=goog.style.getViewportPageOffset(document);f=this.getAbsoluteXY_();g=this.getScaledBBox_();
-b.render(Blockly.WidgetDiv.DIV);var h=b.getElement();Blockly.addClass_(h,"blocklyDropdownMenu");var k=goog.style.getSize(h);k.height=h.scrollHeight;f.y=f.y+k.height+g.height>=c.height+d.y?f.y-(k.height+2):f.y+g.height;this.sourceBlock_.RTL?(f.x+=g.width,f.x+=Blockly.FieldDropdown.CHECKMARK_OVERHANG,f.x<d.x+k.width&&(f.x=d.x+k.width)):(f.x-=Blockly.FieldDropdown.CHECKMARK_OVERHANG,f.x>c.width+d.x-k.width&&(f.x=c.width+d.x-k.width));Blockly.WidgetDiv.position(f.x,f.y,c,d,this.sourceBlock_.RTL);b.setAllowAutoFocus(!0);
-h.focus()};
-Blockly.FieldDropdown.prototype.trimOptions_=function(){this.suffixField=this.prefixField=null;var a=this.menuGenerator_;if(goog.isArray(a)&&!(2>a.length)){var b=a.map(function(a){return a[0]}),c=Blockly.shortestStringLength(b),d=Blockly.commonWordPrefix(b,c),f=Blockly.commonWordSuffix(b,c);if((d||f)&&!(c<=d+f)){d&&(this.prefixField=b[0].substring(0,d-1));f&&(this.suffixField=b[0].substr(1-f));b=[];for(c=0;c<a.length;c++){var g=a[c][0],h=a[c][1],g=g.substring(d,g.length-f);b[c]=[g,h]}this.menuGenerator_=b}}};
+Blockly.FieldDropdown.prototype.showEditor_=function(){Blockly.WidgetDiv.show(this,this.sourceBlock_.RTL,null);var a=this,b=new goog.ui.Menu;b.setRightToLeft(this.sourceBlock_.RTL);for(var c=this.getOptions_(),d=0;d<c.length;d++){var e=c[d][1],f=new goog.ui.MenuItem(c[d][0]);f.setRightToLeft(this.sourceBlock_.RTL);f.setValue(e);f.setCheckable(!0);b.addChild(f,!0);f.setChecked(e==this.value_)}goog.events.listen(b,goog.ui.Component.EventType.ACTION,function(b){if(b=b.target){b=b.getValue();if(a.sourceBlock_&&
+a.validator_){var c=a.validator_(b);void 0!==c&&(b=c)}null!==b&&a.setValue(b)}Blockly.WidgetDiv.hideIfOwner(a)});b.getHandler().listen(b.getElement(),goog.events.EventType.TOUCHSTART,function(a){this.getOwnerControl(a.target).handleMouseDown(a)});b.getHandler().listen(b.getElement(),goog.events.EventType.TOUCHEND,function(a){this.getOwnerControl(a.target).performActionInternal(a)});c=goog.dom.getViewportSize();d=goog.style.getViewportPageOffset(document);e=this.getAbsoluteXY_();f=this.getScaledBBox_();
+b.render(Blockly.WidgetDiv.DIV);var g=b.getElement();Blockly.addClass_(g,"blocklyDropdownMenu");var h=goog.style.getSize(g);h.height=g.scrollHeight;e.y=e.y+h.height+f.height>=c.height+d.y?e.y-(h.height+2):e.y+f.height;this.sourceBlock_.RTL?(e.x+=f.width,e.x+=Blockly.FieldDropdown.CHECKMARK_OVERHANG,e.x<d.x+h.width&&(e.x=d.x+h.width)):(e.x-=Blockly.FieldDropdown.CHECKMARK_OVERHANG,e.x>c.width+d.x-h.width&&(e.x=c.width+d.x-h.width));Blockly.WidgetDiv.position(e.x,e.y,c,d,this.sourceBlock_.RTL);b.setAllowAutoFocus(!0);
+g.focus()};
+Blockly.FieldDropdown.prototype.trimOptions_=function(){this.suffixField=this.prefixField=null;var a=this.menuGenerator_;if(goog.isArray(a)&&!(2>a.length)){var b=a.map(function(a){return a[0]}),c=Blockly.shortestStringLength(b),d=Blockly.commonWordPrefix(b,c),e=Blockly.commonWordSuffix(b,c);if((d||e)&&!(c<=d+e)){d&&(this.prefixField=b[0].substring(0,d-1));e&&(this.suffixField=b[0].substr(1-e));b=[];for(c=0;c<a.length;c++){var f=a[c][0],g=a[c][1],f=f.substring(d,f.length-e);b[c]=[f,g]}this.menuGenerator_=b}}};
 Blockly.FieldDropdown.prototype.getOptions_=function(){return goog.isFunction(this.menuGenerator_)?this.menuGenerator_.call(this):this.menuGenerator_};Blockly.FieldDropdown.prototype.getValue=function(){return this.value_};
 Blockly.FieldDropdown.prototype.setValue=function(a){if(null!==a&&a!==this.value_){this.sourceBlock_&&Blockly.Events.isEnabled()&&Blockly.Events.fire(new Blockly.Events.Change(this.sourceBlock_,"field",this.name,this.value_,a));this.value_=a;for(var b=this.getOptions_(),c=0;c<b.length;c++)if(b[c][1]==a){this.setText(b[c][0]);return}this.setText(a)}};
 Blockly.FieldDropdown.prototype.setText=function(a){this.sourceBlock_&&this.arrow_&&(this.arrow_.style.fill=this.sourceBlock_.getColour());null!==a&&a!==this.text_&&(this.text_=a,this.updateTextNode_(),this.textElement_&&(this.sourceBlock_.RTL?this.textElement_.insertBefore(this.arrow_,this.textElement_.firstChild):this.textElement_.appendChild(this.arrow_)),this.sourceBlock_&&this.sourceBlock_.rendered&&(this.sourceBlock_.render(),this.sourceBlock_.bumpNeighbours_()))};
 Blockly.FieldDropdown.prototype.dispose=function(){Blockly.WidgetDiv.hideIfOwner(this);Blockly.FieldDropdown.superClass_.dispose.call(this)};Blockly.FieldImage=function(a,b,c,d){this.sourceBlock_=null;this.height_=Number(c);this.width_=Number(b);this.size_=new goog.math.Size(this.width_,this.height_+2*Blockly.BlockSvg.INLINE_PADDING_Y);this.text_=d||"";this.setValue(a)};goog.inherits(Blockly.FieldImage,Blockly.Field);Blockly.FieldImage.prototype.rectElement_=null;Blockly.FieldImage.prototype.EDITABLE=!1;
 Blockly.FieldImage.prototype.init=function(){if(!this.fieldGroup_){this.fieldGroup_=Blockly.createSvgElement("g",{},null);this.visible_||(this.fieldGroup_.style.display="none");this.imageElement_=Blockly.createSvgElement("image",{height:this.height_+"px",width:this.width_+"px"},this.fieldGroup_);this.setValue(this.src_);goog.userAgent.GECKO&&(this.rectElement_=Blockly.createSvgElement("rect",{height:this.height_+"px",width:this.width_+"px","fill-opacity":0},this.fieldGroup_));this.sourceBlock_.getSvgRoot().appendChild(this.fieldGroup_);
 var a=this.rectElement_||this.imageElement_;a.tooltip=this.sourceBlock_;Blockly.Tooltip.bindMouseEvents(a)}};Blockly.FieldImage.prototype.dispose=function(){goog.dom.removeNode(this.fieldGroup_);this.rectElement_=this.imageElement_=this.fieldGroup_=null};Blockly.FieldImage.prototype.setTooltip=function(a){(this.rectElement_||this.imageElement_).tooltip=a};Blockly.FieldImage.prototype.getValue=function(){return this.src_};
-Blockly.FieldImage.prototype.setValue=function(a){null!==a&&(this.src_=a,this.imageElement_&&this.imageElement_.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",goog.isString(a)?a:""))};Blockly.FieldImage.prototype.setText=function(a){null!==a&&(this.text_=a)};Blockly.FieldImage.prototype.render_=function(){};Blockly.Variables={};Blockly.Variables.NAME_TYPE="VARIABLE";Blockly.Variables.allVariables=function(a){var b;if(a.getDescendants)b=a.getDescendants();else if(a.getAllBlocks)b=a.getAllBlocks();else throw"Not Block or Workspace: "+a;a=Object.create(null);for(var c=0;c<b.length;c++)for(var d=b[c].getVars(),f=0;f<d.length;f++){var g=d[f];g&&(a[g.toLowerCase()]=g)}b=[];for(var h in a)b.push(a[h]);return b};
+Blockly.FieldImage.prototype.setValue=function(a){null!==a&&(this.src_=a,this.imageElement_&&this.imageElement_.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",goog.isString(a)?a:""))};Blockly.FieldImage.prototype.setText=function(a){null!==a&&(this.text_=a)};Blockly.FieldImage.prototype.render_=function(){};Blockly.Variables={};Blockly.Variables.NAME_TYPE="VARIABLE";Blockly.Variables.allVariables=function(a){var b;if(a.getDescendants)b=a.getDescendants();else if(a.getAllBlocks)b=a.getAllBlocks();else throw"Not Block or Workspace: "+a;a=Object.create(null);for(var c=0;c<b.length;c++)for(var d=b[c].getVars(),e=0;e<d.length;e++){var f=d[e];f&&(a[f.toLowerCase()]=f)}b=[];for(var g in a)b.push(a[g]);return b};
 Blockly.Variables.renameVariable=function(a,b,c){Blockly.Events.setGroup(!0);c=c.getAllBlocks();for(var d=0;d<c.length;d++)c[d].renameVar(a,b);Blockly.Events.setGroup(!1)};
-Blockly.Variables.flyoutCategory=function(a){a=Blockly.Variables.allVariables(a);a.sort(goog.string.caseInsensitiveCompare);goog.array.remove(a,Blockly.Msg.VARIABLES_DEFAULT_NAME);a.unshift(Blockly.Msg.VARIABLES_DEFAULT_NAME);for(var b=[],c=0;c<a.length;c++){if(Blockly.Blocks.variables_set){var d=goog.dom.createDom("block");d.setAttribute("type","variables_set");Blockly.Blocks.variables_get&&d.setAttribute("gap",8);var f=goog.dom.createDom("field",null,a[c]);f.setAttribute("name","VAR");d.appendChild(f);
-b.push(d)}Blockly.Blocks.variables_get&&(d=goog.dom.createDom("block"),d.setAttribute("type","variables_get"),Blockly.Blocks.variables_set&&d.setAttribute("gap",24),f=goog.dom.createDom("field",null,a[c]),f.setAttribute("name","VAR"),d.appendChild(f),b.push(d))}return b};
-Blockly.Variables.generateUniqueName=function(a){a=Blockly.Variables.allVariables(a);var b="";if(a.length)for(var c=1,d=0,f="ijkmnopqrstuvwxyzabcdefgh".charAt(d);!b;){for(var g=!1,h=0;h<a.length;h++)if(a[h].toLowerCase()==f){g=!0;break}g?(d++,25==d&&(d=0,c++),f="ijkmnopqrstuvwxyzabcdefgh".charAt(d),1<c&&(f+=c)):b=f}else b="i";return b};Blockly.FieldVariable=function(a,b){Blockly.FieldVariable.superClass_.constructor.call(this,Blockly.FieldVariable.dropdownCreate,b);this.setValue(a||"")};goog.inherits(Blockly.FieldVariable,Blockly.FieldDropdown);Blockly.FieldVariable.prototype.setValidator=function(a){Blockly.FieldVariable.superClass_.setValidator.call(this,a?function(b){var c=a.call(this,b);if(null===c)var d=c;else void 0===c&&(c=b),d=Blockly.FieldVariable.dropdownChange.call(this,c),void 0===d&&(d=c);return d===b?void 0:d}:Blockly.FieldVariable.dropdownChange)};
+Blockly.Variables.flyoutCategory=function(a){a=Blockly.Variables.allVariables(a);a.sort(goog.string.caseInsensitiveCompare);goog.array.remove(a,Blockly.Msg.VARIABLES_DEFAULT_NAME);a.unshift(Blockly.Msg.VARIABLES_DEFAULT_NAME);for(var b=[],c=0;c<a.length;c++){if(Blockly.Blocks.variables_set){var d=goog.dom.createDom("block");d.setAttribute("type","variables_set");Blockly.Blocks.variables_get&&d.setAttribute("gap",8);var e=goog.dom.createDom("field",null,a[c]);e.setAttribute("name","VAR");d.appendChild(e);
+b.push(d)}Blockly.Blocks.variables_get&&(d=goog.dom.createDom("block"),d.setAttribute("type","variables_get"),Blockly.Blocks.variables_set&&d.setAttribute("gap",24),e=goog.dom.createDom("field",null,a[c]),e.setAttribute("name","VAR"),d.appendChild(e),b.push(d))}return b};
+Blockly.Variables.generateUniqueName=function(a){a=Blockly.Variables.allVariables(a);var b="";if(a.length)for(var c=1,d=0,e="ijkmnopqrstuvwxyzabcdefgh".charAt(d);!b;){for(var f=!1,g=0;g<a.length;g++)if(a[g].toLowerCase()==e){f=!0;break}f?(d++,25==d&&(d=0,c++),e="ijkmnopqrstuvwxyzabcdefgh".charAt(d),1<c&&(e+=c)):b=e}else b="i";return b};Blockly.FieldVariable=function(a,b){Blockly.FieldVariable.superClass_.constructor.call(this,Blockly.FieldVariable.dropdownCreate,b);this.setValue(a||"")};goog.inherits(Blockly.FieldVariable,Blockly.FieldDropdown);Blockly.FieldVariable.prototype.setValidator=function(a){Blockly.FieldVariable.superClass_.setValidator.call(this,a?function(b){var c=a.call(this,b);if(null===c)var d=c;else void 0===c&&(c=b),d=Blockly.FieldVariable.dropdownChange.call(this,c),void 0===d&&(d=c);return d===b?void 0:d}:Blockly.FieldVariable.dropdownChange)};
 Blockly.FieldVariable.prototype.init=function(a){this.fieldGroup_||(Blockly.FieldVariable.superClass_.init.call(this,a),this.getValue()||this.setValue(Blockly.Variables.generateUniqueName(a.isInFlyout?a.workspace.targetWorkspace:a.workspace)))};Blockly.FieldVariable.prototype.getValue=function(){return this.getText()};
 Blockly.FieldVariable.prototype.setValue=function(a){this.sourceBlock_&&Blockly.Events.isEnabled()&&Blockly.Events.fire(new Blockly.Events.Change(this.sourceBlock_,"field",this.name,this.value_,a));this.value_=a;this.setText(a)};
 Blockly.FieldVariable.dropdownCreate=function(){var a=this.sourceBlock_&&this.sourceBlock_.workspace?Blockly.Variables.allVariables(this.sourceBlock_.workspace):[],b=this.getText();b&&-1==a.indexOf(b)&&a.push(b);a.sort(goog.string.caseInsensitiveCompare);a.push(Blockly.Msg.RENAME_VARIABLE);a.push(Blockly.Msg.NEW_VARIABLE);for(var b=[],c=0;c<a.length;c++)b[c]=[a[c],a[c]];return b};
 Blockly.FieldVariable.dropdownChange=function(a){function b(a,b){Blockly.hideChaff();var c=window.prompt(a,b);c&&(c=c.replace(/[\s\xa0]+/g," ").replace(/^ | $/g,""),c==Blockly.Msg.RENAME_VARIABLE||c==Blockly.Msg.NEW_VARIABLE)&&(c=null);return c}var c=this.sourceBlock_.workspace;if(a==Blockly.Msg.RENAME_VARIABLE){var d=this.getText();(a=b(Blockly.Msg.RENAME_VARIABLE_TITLE.replace("%1",d),d))&&Blockly.Variables.renameVariable(d,a,c);return null}if(a==Blockly.Msg.NEW_VARIABLE)return(a=b(Blockly.Msg.NEW_VARIABLE_TITLE,
 ""))?(Blockly.Variables.renameVariable(a,a,c),a):null};Blockly.Generator=function(a){this.name_=a;this.FUNCTION_NAME_PLACEHOLDER_REGEXP_=new RegExp(this.FUNCTION_NAME_PLACEHOLDER_,"g")};Blockly.Generator.NAME_TYPE="generated_function";Blockly.Generator.prototype.INFINITE_LOOP_TRAP=null;Blockly.Generator.prototype.STATEMENT_PREFIX=null;Blockly.Generator.prototype.INDENT="  ";
-Blockly.Generator.prototype.workspaceToCode=function(a){a||(console.warn("No workspace specified in workspaceToCode call.  Guessing."),a=Blockly.getMainWorkspace());var b=[];this.init(a);a=a.getTopBlocks(!0);for(var c=0,d;d=a[c];c++){var f=this.blockToCode(d);goog.isArray(f)&&(f=f[0]);f&&(d.outputConnection&&this.scrubNakedValue&&(f=this.scrubNakedValue(f)),b.push(f))}b=b.join("\n");b=this.finish(b);b=b.replace(/^\s+\n/,"");b=b.replace(/\n\s+$/,"\n");return b=b.replace(/[ \t]+\n/g,"\n")};
+Blockly.Generator.prototype.workspaceToCode=function(a){a||(console.warn("No workspace specified in workspaceToCode call.  Guessing."),a=Blockly.getMainWorkspace());var b=[];this.init(a);a=a.getTopBlocks(!0);for(var c=0,d;d=a[c];c++){var e=this.blockToCode(d);goog.isArray(e)&&(e=e[0]);e&&(d.outputConnection&&this.scrubNakedValue&&(e=this.scrubNakedValue(e)),b.push(e))}b=b.join("\n");b=this.finish(b);b=b.replace(/^\s+\n/,"");b=b.replace(/\n\s+$/,"\n");return b=b.replace(/[ \t]+\n/g,"\n")};
 Blockly.Generator.prototype.prefixLines=function(a,b){return b+a.replace(/\n(.)/g,"\n"+b+"$1")};Blockly.Generator.prototype.allNestedComments=function(a){var b=[];a=a.getDescendants();for(var c=0;c<a.length;c++){var d=a[c].getCommentText();d&&b.push(d)}b.length&&b.push("");return b.join("\n")};
 Blockly.Generator.prototype.blockToCode=function(a){if(!a)return"";if(a.disabled)return this.blockToCode(a.getNextBlock());var b=this[a.type];goog.asserts.assertFunction(b,'Language "%s" does not know how to generate code for block type "%s".',this.name_,a.type);b=b.call(a,a);if(goog.isArray(b))return goog.asserts.assert(a.outputConnection,'Expecting string from statement block "%s".',a.type),[this.scrub_(a,b[0]),b[1]];if(goog.isString(b))return this.STATEMENT_PREFIX&&(b=this.STATEMENT_PREFIX.replace(/%1/g,
 "'"+a.id+"'")+b),this.scrub_(a,b);if(null===b)return"";goog.asserts.fail("Invalid code generated: %s",b)};
@@ -1272,15 +1271,15 @@ Blockly.Generator.prototype.valueToCode=function(a,b,c){isNaN(c)&&goog.asserts.f
 Blockly.Generator.prototype.statementToCode=function(a,b){var c=a.getInputTargetBlock(b),d=this.blockToCode(c);goog.asserts.assertString(d,'Expecting code from statement block "%s".',c&&c.type);d&&(d=this.prefixLines(d,this.INDENT));return d};Blockly.Generator.prototype.addLoopTrap=function(a,b){this.INFINITE_LOOP_TRAP&&(a=this.INFINITE_LOOP_TRAP.replace(/%1/g,"'"+b+"'")+a);this.STATEMENT_PREFIX&&(a+=this.prefixLines(this.STATEMENT_PREFIX.replace(/%1/g,"'"+b+"'"),this.INDENT));return a};
 Blockly.Generator.prototype.RESERVED_WORDS_="";Blockly.Generator.prototype.addReservedWords=function(a){this.RESERVED_WORDS_+=a+","};Blockly.Generator.prototype.FUNCTION_NAME_PLACEHOLDER_="{leCUI8hutHZI4480Dc}";
 Blockly.Generator.prototype.provideFunction_=function(a,b){if(!this.definitions_[a]){var c=this.variableDB_.getDistinctName(a,this.NAME_TYPE);this.functionNames_[a]=c;for(var c=b.join("\n").replace(this.FUNCTION_NAME_PLACEHOLDER_REGEXP_,c),d;d!=c;)d=c,c=c.replace(/^((  )*)  /gm,"$1"+this.INDENT);this.definitions_[a]=c}return this.functionNames_[a]};Blockly.Names=function(a,b){this.variablePrefix_=b||"";this.reservedDict_=Object.create(null);if(a)for(var c=a.split(","),d=0;d<c.length;d++)this.reservedDict_[c[d]]=!0;this.reset()};Blockly.Names.prototype.reset=function(){this.db_=Object.create(null);this.dbReverse_=Object.create(null)};
-Blockly.Names.prototype.getName=function(a,b){var c=a.toLowerCase()+"_"+b,d=b==Blockly.Variables.NAME_TYPE?this.variablePrefix_:"";if(c in this.db_)return d+this.db_[c];var f=this.getDistinctName(a,b);this.db_[c]=f.substr(d.length);return f};Blockly.Names.prototype.getDistinctName=function(a,b){for(var c=this.safeName_(a),d="";this.dbReverse_[c+d]||c+d in this.reservedDict_;)d=d?d+1:2;c+=d;this.dbReverse_[c]=!0;return(b==Blockly.Variables.NAME_TYPE?this.variablePrefix_:"")+c};
-Blockly.Names.prototype.safeName_=function(a){a?(a=encodeURI(a.replace(/ /g,"_")).replace(/[^\w]/g,"_"),-1!="0123456789".indexOf(a[0])&&(a="my_"+a)):a="unnamed";return a};Blockly.Names.equals=function(a,b){return a.toLowerCase()==b.toLowerCase()};Blockly.Procedures={};Blockly.Procedures.NAME_TYPE="PROCEDURE";Blockly.Procedures.allProcedures=function(a){a=a.getAllBlocks();for(var b=[],c=[],d=0;d<a.length;d++)if(a[d].getProcedureDef){var f=a[d].getProcedureDef();f&&(f[2]?b.push(f):c.push(f))}c.sort(Blockly.Procedures.procTupleComparator_);b.sort(Blockly.Procedures.procTupleComparator_);return[c,b]};Blockly.Procedures.procTupleComparator_=function(a,b){return a[0].toLowerCase().localeCompare(b[0].toLowerCase())};
-Blockly.Procedures.findLegalName=function(a,b){if(b.isInFlyout)return a;for(;!Blockly.Procedures.isLegalName(a,b.workspace,b);){var c=a.match(/^(.*?)(\d+)$/);a=c?c[1]+(parseInt(c[2],10)+1):a+"2"}return a};Blockly.Procedures.isLegalName=function(a,b,c){b=b.getAllBlocks();for(var d=0;d<b.length;d++)if(b[d]!=c&&b[d].getProcedureDef){var f=b[d].getProcedureDef();if(Blockly.Names.equals(f[0],a))return!1}return!0};
+Blockly.Names.prototype.getName=function(a,b){var c=a.toLowerCase()+"_"+b,d=b==Blockly.Variables.NAME_TYPE?this.variablePrefix_:"";if(c in this.db_)return d+this.db_[c];var e=this.getDistinctName(a,b);this.db_[c]=e.substr(d.length);return e};Blockly.Names.prototype.getDistinctName=function(a,b){for(var c=this.safeName_(a),d="";this.dbReverse_[c+d]||c+d in this.reservedDict_;)d=d?d+1:2;c+=d;this.dbReverse_[c]=!0;return(b==Blockly.Variables.NAME_TYPE?this.variablePrefix_:"")+c};
+Blockly.Names.prototype.safeName_=function(a){a?(a=encodeURI(a.replace(/ /g,"_")).replace(/[^\w]/g,"_"),-1!="0123456789".indexOf(a[0])&&(a="my_"+a)):a="unnamed";return a};Blockly.Names.equals=function(a,b){return a.toLowerCase()==b.toLowerCase()};Blockly.Procedures={};Blockly.Procedures.NAME_TYPE="PROCEDURE";Blockly.Procedures.allProcedures=function(a){a=a.getAllBlocks();for(var b=[],c=[],d=0;d<a.length;d++)if(a[d].getProcedureDef){var e=a[d].getProcedureDef();e&&(e[2]?b.push(e):c.push(e))}c.sort(Blockly.Procedures.procTupleComparator_);b.sort(Blockly.Procedures.procTupleComparator_);return[c,b]};Blockly.Procedures.procTupleComparator_=function(a,b){return a[0].toLowerCase().localeCompare(b[0].toLowerCase())};
+Blockly.Procedures.findLegalName=function(a,b){if(b.isInFlyout)return a;for(;!Blockly.Procedures.isLegalName(a,b.workspace,b);){var c=a.match(/^(.*?)(\d+)$/);a=c?c[1]+(parseInt(c[2],10)+1):a+"2"}return a};Blockly.Procedures.isLegalName=function(a,b,c){b=b.getAllBlocks();for(var d=0;d<b.length;d++)if(b[d]!=c&&b[d].getProcedureDef){var e=b[d].getProcedureDef();if(Blockly.Names.equals(e[0],a))return!1}return!0};
 Blockly.Procedures.rename=function(a){a=a.replace(/^[\s\xa0]+|[\s\xa0]+$/g,"");a=Blockly.Procedures.findLegalName(a,this.sourceBlock_);for(var b=this.sourceBlock_.workspace.getAllBlocks(),c=0;c<b.length;c++)b[c].renameProcedure&&b[c].renameProcedure(this.text_,a);return a};
-Blockly.Procedures.flyoutCategory=function(a){function b(a,b){for(var d=0;d<a.length;d++){var k=a[d][0],l=a[d][1],m=goog.dom.createDom("block");m.setAttribute("type",b);m.setAttribute("gap",16);var r=goog.dom.createDom("mutation");r.setAttribute("name",k);m.appendChild(r);for(k=0;k<l.length;k++){var n=goog.dom.createDom("arg");n.setAttribute("name",l[k]);r.appendChild(n)}c.push(m)}}var c=[];if(Blockly.Blocks.procedures_defnoreturn){var d=goog.dom.createDom("block");d.setAttribute("type","procedures_defnoreturn");
+Blockly.Procedures.flyoutCategory=function(a){function b(a,b){for(var d=0;d<a.length;d++){var h=a[d][0],k=a[d][1],l=goog.dom.createDom("block");l.setAttribute("type",b);l.setAttribute("gap",16);var q=goog.dom.createDom("mutation");q.setAttribute("name",h);l.appendChild(q);for(h=0;h<k.length;h++){var m=goog.dom.createDom("arg");m.setAttribute("name",k[h]);q.appendChild(m)}c.push(l)}}var c=[];if(Blockly.Blocks.procedures_defnoreturn){var d=goog.dom.createDom("block");d.setAttribute("type","procedures_defnoreturn");
 d.setAttribute("gap",16);c.push(d)}Blockly.Blocks.procedures_defreturn&&(d=goog.dom.createDom("block"),d.setAttribute("type","procedures_defreturn"),d.setAttribute("gap",16),c.push(d));Blockly.Blocks.procedures_ifreturn&&(d=goog.dom.createDom("block"),d.setAttribute("type","procedures_ifreturn"),d.setAttribute("gap",16),c.push(d));c.length&&c[c.length-1].setAttribute("gap",24);a=Blockly.Procedures.allProcedures(a);b(a[0],"procedures_callnoreturn");b(a[1],"procedures_callreturn");return c};
-Blockly.Procedures.getCallers=function(a,b){for(var c=[],d=b.getAllBlocks(),f=0;f<d.length;f++)if(d[f].getProcedureCall){var g=d[f].getProcedureCall();g&&Blockly.Names.equals(g,a)&&c.push(d[f])}return c};Blockly.Procedures.disposeCallers=function(a,b){for(var c=Blockly.Procedures.getCallers(a,b),d=0;d<c.length;d++)c[d].dispose(!0,!1)};
-Blockly.Procedures.mutateCallers=function(a){var b=Blockly.Events.recordUndo,c=a.getProcedureDef()[0],d=a.mutationToDom(!0);a=Blockly.Procedures.getCallers(c,a.workspace);for(var c=0,f;f=a[c];c++){var g=f.mutationToDom(),g=g&&Blockly.Xml.domToText(g);f.domToMutation(d);var h=f.mutationToDom(),h=h&&Blockly.Xml.domToText(h);g!=h&&(Blockly.Events.recordUndo=!1,Blockly.Events.fire(new Blockly.Events.Change(f,"mutation",null,g,h)),Blockly.Events.recordUndo=b)}};
-Blockly.Procedures.getDefinition=function(a,b){for(var c=b.getAllBlocks(),d=0;d<c.length;d++)if(c[d].getProcedureDef){var f=c[d].getProcedureDef();if(f&&Blockly.Names.equals(f[0],a))return c[d]}return null};Blockly.Flyout=function(a){a.getMetrics=this.getMetrics_.bind(this);a.setMetrics=this.setMetrics_.bind(this);this.workspace_=new Blockly.WorkspaceSvg(a);this.workspace_.isFlyout=!0;this.RTL=!!a.RTL;this.eventWrappers_=[];this.buttons_=[];this.listeners_=[];this.permanentlyDisabled_=[]};Blockly.Flyout.prototype.autoClose=!0;Blockly.Flyout.prototype.CORNER_RADIUS=8;Blockly.Flyout.prototype.SCROLLBAR_PADDING=2;Blockly.Flyout.prototype.width_=0;Blockly.Flyout.prototype.height_=0;
+Blockly.Procedures.getCallers=function(a,b){for(var c=[],d=b.getAllBlocks(),e=0;e<d.length;e++)if(d[e].getProcedureCall){var f=d[e].getProcedureCall();f&&Blockly.Names.equals(f,a)&&c.push(d[e])}return c};Blockly.Procedures.disposeCallers=function(a,b){for(var c=Blockly.Procedures.getCallers(a,b),d=0;d<c.length;d++)c[d].dispose(!0,!1)};
+Blockly.Procedures.mutateCallers=function(a){var b=Blockly.Events.recordUndo,c=a.getProcedureDef()[0],d=a.mutationToDom(!0);a=Blockly.Procedures.getCallers(c,a.workspace);for(var c=0,e;e=a[c];c++){var f=e.mutationToDom(),f=f&&Blockly.Xml.domToText(f);e.domToMutation(d);var g=e.mutationToDom(),g=g&&Blockly.Xml.domToText(g);f!=g&&(Blockly.Events.recordUndo=!1,Blockly.Events.fire(new Blockly.Events.Change(e,"mutation",null,f,g)),Blockly.Events.recordUndo=b)}};
+Blockly.Procedures.getDefinition=function(a,b){for(var c=b.getAllBlocks(),d=0;d<c.length;d++)if(c[d].getProcedureDef){var e=c[d].getProcedureDef();if(e&&Blockly.Names.equals(e[0],a))return c[d]}return null};Blockly.Flyout=function(a){a.getMetrics=this.getMetrics_.bind(this);a.setMetrics=this.setMetrics_.bind(this);this.workspace_=new Blockly.WorkspaceSvg(a);this.workspace_.isFlyout=!0;this.RTL=!!a.RTL;this.eventWrappers_=[];this.buttons_=[];this.listeners_=[];this.permanentlyDisabled_=[]};Blockly.Flyout.prototype.autoClose=!0;Blockly.Flyout.prototype.CORNER_RADIUS=8;Blockly.Flyout.prototype.SCROLLBAR_PADDING=2;Blockly.Flyout.prototype.width_=0;Blockly.Flyout.prototype.height_=0;
 Blockly.Flyout.prototype.createDom=function(){this.svgGroup_=Blockly.createSvgElement("g",{"class":"blocklyFlyout"},null);this.svgBackground_=Blockly.createSvgElement("path",{"class":"blocklyFlyoutBackground"},this.svgGroup_);this.svgGroup_.appendChild(this.workspace_.createDom());return this.svgGroup_};
 Blockly.Flyout.prototype.init=function(a){this.targetWorkspace_=a;this.workspace_.targetWorkspace=a;this.scrollbar_=new Blockly.Scrollbar(this.workspace_,!1,!1);this.hide();Array.prototype.push.apply(this.eventWrappers_,Blockly.bindEvent_(this.svgGroup_,"wheel",this,this.wheel_));this.autoClose||(this.filterWrapper_=this.filterForCapacity_.bind(this),this.targetWorkspace_.addChangeListener(this.filterWrapper_));Array.prototype.push.apply(this.eventWrappers_,Blockly.bindEvent_(this.svgGroup_,"mousedown",
 this,this.onMouseDown_))};
@@ -1291,29 +1290,29 @@ Blockly.Flyout.prototype.position=function(){if(this.isVisible()){var a=this.tar
 -this.CORNER_RADIUS,this.CORNER_RADIUS);c.push("h",-b);c.push("z");this.svgBackground_.setAttribute("d",c.join(" "));b=a.absoluteLeft;this.RTL&&(b+=a.viewWidth,b-=this.width_);this.svgGroup_.setAttribute("transform","translate("+b+","+a.absoluteTop+")");this.height_=a.viewHeight;this.scrollbar_&&this.scrollbar_.resize()}}};Blockly.Flyout.prototype.scrollToStart=function(){this.scrollbar_.set(0)};
 Blockly.Flyout.prototype.wheel_=function(a){var b=a.deltaY;if(b){goog.userAgent.GECKO&&(b*=10);var c=this.getMetrics_(),b=c.viewTop+b,b=Math.min(b,c.contentHeight-c.viewHeight),b=Math.max(b,0);this.scrollbar_.set(b);a.preventDefault();a.stopPropagation()}};Blockly.Flyout.prototype.isVisible=function(){return this.svgGroup_&&"block"==this.svgGroup_.style.display};
 Blockly.Flyout.prototype.hide=function(){if(this.isVisible()){this.svgGroup_.style.display="none";for(var a=0,b;b=this.listeners_[a];a++)Blockly.unbindEvent_(b);this.listeners_.length=0;this.reflowWrapper_&&(this.workspace_.removeChangeListener(this.reflowWrapper_),this.reflowWrapper_=null)}};
-Blockly.Flyout.prototype.show=function(a){this.hide();for(var b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++)d.workspace==this.workspace_&&d.dispose(!1,!1);for(var c=0,f;f=this.buttons_[c];c++)goog.dom.removeNode(f);this.buttons_.length=0;a==Blockly.Variables.NAME_TYPE?a=Blockly.Variables.flyoutCategory(this.workspace_.targetWorkspace):a==Blockly.Procedures.NAME_TYPE&&(a=Blockly.Procedures.flyoutCategory(this.workspace_.targetWorkspace));var g=this.CORNER_RADIUS;this.svgGroup_.style.display=
-"block";for(var b=[],h=[],c=this.permanentlyDisabled_.length=0;f=a[c];c++)f.tagName&&"BLOCK"==f.tagName.toUpperCase()&&(d=Blockly.Xml.domToBlock(f,this.workspace_),d.disabled&&this.permanentlyDisabled_.push(d),b.push(d),d=parseInt(f.getAttribute("gap"),10),h.push(isNaN(d)?3*g:d));a=g;for(c=0;d=b[c];c++){f=d.getDescendants();for(var k=0,l;l=f[k];k++)l.isInFlyout=!0;d.render();k=d.getSvgRoot();f=d.getHeightWidth();d.moveBy(this.RTL?0:g/this.workspace_.scale+Blockly.BlockSvg.TAB_WIDTH,a);a+=f.height+
-h[c];f=Blockly.createSvgElement("rect",{"fill-opacity":0},null);f.tooltip=d;Blockly.Tooltip.bindMouseEvents(f);this.workspace_.getCanvas().insertBefore(f,d.getSvgRoot());d.flyoutRect_=f;this.buttons_[c]=f;this.autoClose?this.listeners_.push(Blockly.bindEvent_(k,"mousedown",null,this.createBlockFunc_(d))):this.listeners_.push(Blockly.bindEvent_(k,"mousedown",null,this.blockMouseDown_(d)));this.listeners_.push(Blockly.bindEvent_(k,"mouseover",d,d.addSelect));this.listeners_.push(Blockly.bindEvent_(k,
-"mouseout",d,d.removeSelect));this.listeners_.push(Blockly.bindEvent_(f,"mousedown",null,this.createBlockFunc_(d)));this.listeners_.push(Blockly.bindEvent_(f,"mouseover",d,d.addSelect));this.listeners_.push(Blockly.bindEvent_(f,"mouseout",d,d.removeSelect))}this.listeners_.push(Blockly.bindEvent_(this.svgBackground_,"mouseover",this,function(a){a=this.workspace_.getTopBlocks(!1);for(var b=0,c;c=a[b];b++)c.removeSelect()}));this.width_=0;this.reflow();this.filterForCapacity_();Blockly.fireUiEventNow(window,
-"resize");this.reflowWrapper_=this.reflow.bind(this);this.workspace_.addChangeListener(this.reflowWrapper_)};
-Blockly.Flyout.prototype.reflow=function(){this.workspace_.scale=this.targetWorkspace_.scale;for(var a=0,b=this.CORNER_RADIUS,c=this.workspace_.getTopBlocks(!1),d=0,f;f=c[d];d++){var g=f.getHeightWidth().width;f.outputConnection&&(g-=Blockly.BlockSvg.TAB_WIDTH);a=Math.max(a,g)}a+=Blockly.BlockSvg.TAB_WIDTH;a*=this.workspace_.scale;a+=1.5*b+Blockly.Scrollbar.scrollbarThickness;if(this.width_!=a){for(d=0;f=c[d];d++){g=f.getHeightWidth();if(this.RTL){var h=f.getRelativeToSurfaceXY().x,k=a-b,k=k/this.workspace_.scale,
-k=k-Blockly.BlockSvg.TAB_WIDTH;f.moveBy(k-h,0)}f.flyoutRect_&&(f.flyoutRect_.setAttribute("width",g.width),f.flyoutRect_.setAttribute("height",g.height),h=f.outputConnection?Blockly.BlockSvg.TAB_WIDTH:0,k=f.getRelativeToSurfaceXY(),f.flyoutRect_.setAttribute("x",this.RTL?k.x-g.width+h:k.x-h),f.flyoutRect_.setAttribute("y",k.y))}this.width_=a;Blockly.fireUiEvent(window,"resize")}};
-Blockly.Flyout.prototype.blockMouseDown_=function(a){var b=this;return function(c){Blockly.terminateDrag_();Blockly.hideChaff();Blockly.isRightButton(c)?a.showContextMenu_(c):(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),Blockly.Flyout.startDownEvent_=c,Blockly.Flyout.startBlock_=a,Blockly.Flyout.startFlyout_=b,Blockly.Flyout.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.terminateDrag_),Blockly.Flyout.onMouseMoveBlockWrapper_=Blockly.bindEvent_(document,"mousemove",this,
-b.onMouseMoveBlock_));c.stopPropagation()}};Blockly.Flyout.prototype.onMouseDown_=function(a){Blockly.isRightButton(a)||(Blockly.hideChaff(!0),Blockly.Flyout.terminateDrag_(),this.startDragMouseY_=a.clientY,Blockly.Flyout.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.onMouseMove_),Blockly.Flyout.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Flyout.terminateDrag_),a.preventDefault(),a.stopPropagation())};
-Blockly.Flyout.prototype.onMouseMove_=function(a){var b=a.clientY-this.startDragMouseY_;this.startDragMouseY_=a.clientY;a=this.getMetrics_();b=a.viewTop-b;b=Math.min(b,a.contentHeight-a.viewHeight);b=Math.max(b,0);this.scrollbar_.set(b)};
+Blockly.Flyout.prototype.show=function(a){this.hide();for(var b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++)d.workspace==this.workspace_&&d.dispose(!1,!1);for(var c=0,e;e=this.buttons_[c];c++)goog.dom.removeNode(e);this.buttons_.length=0;a==Blockly.Variables.NAME_TYPE?a=Blockly.Variables.flyoutCategory(this.workspace_.targetWorkspace):a==Blockly.Procedures.NAME_TYPE&&(a=Blockly.Procedures.flyoutCategory(this.workspace_.targetWorkspace));var f=this.CORNER_RADIUS;this.svgGroup_.style.display=
+"block";for(var b=[],g=[],c=this.permanentlyDisabled_.length=0;e=a[c];c++)e.tagName&&"BLOCK"==e.tagName.toUpperCase()&&(d=Blockly.Xml.domToBlock(e,this.workspace_),d.disabled&&this.permanentlyDisabled_.push(d),b.push(d),d=parseInt(e.getAttribute("gap"),10),g.push(isNaN(d)?3*f:d));a=f;for(c=0;d=b[c];c++){e=d.getDescendants();for(var h=0,k;k=e[h];h++)k.isInFlyout=!0;d.render();h=d.getSvgRoot();e=d.getHeightWidth();d.moveBy(this.RTL?0:f/this.workspace_.scale+Blockly.BlockSvg.TAB_WIDTH,a);a+=e.height+
+g[c];e=Blockly.createSvgElement("rect",{"fill-opacity":0},null);e.tooltip=d;Blockly.Tooltip.bindMouseEvents(e);this.workspace_.getCanvas().insertBefore(e,d.getSvgRoot());d.flyoutRect_=e;this.buttons_[c]=e;this.autoClose?(this.listeners_.push(Blockly.bindEvent_(h,"mousedown",null,this.createBlockFunc_(d))),this.listeners_.push(Blockly.bindEvent_(e,"mousedown",null,this.createBlockFunc_(d)))):(this.listeners_.push(Blockly.bindEvent_(h,"mousedown",null,this.blockMouseDown_(d))),this.listeners_.push(Blockly.bindEvent_(e,
+"mousedown",null,this.blockMouseDown_(d))));this.listeners_.push(Blockly.bindEvent_(h,"mouseover",d,d.addSelect));this.listeners_.push(Blockly.bindEvent_(h,"mouseout",d,d.removeSelect));this.listeners_.push(Blockly.bindEvent_(e,"mouseover",d,d.addSelect));this.listeners_.push(Blockly.bindEvent_(e,"mouseout",d,d.removeSelect))}this.listeners_.push(Blockly.bindEvent_(this.svgBackground_,"mouseover",this,function(a){a=this.workspace_.getTopBlocks(!1);for(var b=0,c;c=a[b];b++)c.removeSelect()}));this.width_=
+0;this.reflow();this.filterForCapacity_();Blockly.fireUiEventNow(window,"resize");this.reflowWrapper_=this.reflow.bind(this);this.workspace_.addChangeListener(this.reflowWrapper_)};
+Blockly.Flyout.prototype.reflow=function(){this.workspace_.scale=this.targetWorkspace_.scale;for(var a=0,b=this.CORNER_RADIUS,c=this.workspace_.getTopBlocks(!1),d=0,e;e=c[d];d++){var f=e.getHeightWidth().width;e.outputConnection&&(f-=Blockly.BlockSvg.TAB_WIDTH);a=Math.max(a,f)}a+=Blockly.BlockSvg.TAB_WIDTH;a*=this.workspace_.scale;a+=1.5*b+Blockly.Scrollbar.scrollbarThickness;if(this.width_!=a){for(d=0;e=c[d];d++){f=e.getHeightWidth();if(this.RTL){var g=e.getRelativeToSurfaceXY().x,h=a-b,h=h/this.workspace_.scale,
+h=h-Blockly.BlockSvg.TAB_WIDTH;e.moveBy(h-g,0)}e.flyoutRect_&&(e.flyoutRect_.setAttribute("width",f.width),e.flyoutRect_.setAttribute("height",f.height),g=e.outputConnection?Blockly.BlockSvg.TAB_WIDTH:0,h=e.getRelativeToSurfaceXY(),e.flyoutRect_.setAttribute("x",this.RTL?h.x-f.width+g:h.x-g),e.flyoutRect_.setAttribute("y",h.y))}this.width_=a;Blockly.fireUiEvent(window,"resize")}};
+Blockly.Flyout.prototype.blockMouseDown_=function(a){var b=this;return function(c){Blockly.terminateDrag_();Blockly.hideChaff();Blockly.isRightButton(c)?a.showContextMenu_(c):(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),Blockly.Flyout.startDownEvent_=c,Blockly.Flyout.startBlock_=a,Blockly.Flyout.startFlyout_=b,Blockly.Flyout.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,b.onMouseUp_),Blockly.Flyout.onMouseMoveBlockWrapper_=Blockly.bindEvent_(document,"mousemove",this,b.onMouseMoveBlock_));
+c.stopPropagation()}};Blockly.Flyout.prototype.onMouseDown_=function(a){Blockly.isRightButton(a)||(Blockly.hideChaff(!0),Blockly.Flyout.terminateDrag_(),this.startDragMouseY_=a.clientY,Blockly.Flyout.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.onMouseMove_),Blockly.Flyout.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Flyout.terminateDrag_),a.preventDefault(),a.stopPropagation())};
+Blockly.Flyout.prototype.onMouseUp_=function(a){Blockly.dragMode_==Blockly.DRAG_FREE||Blockly.WidgetDiv.isVisible()||Blockly.Events.fire(new Blockly.Events.Ui(Blockly.Flyout.startBlock_,"click",void 0,void 0));Blockly.terminateDrag_()};Blockly.Flyout.prototype.onMouseMove_=function(a){var b=a.clientY-this.startDragMouseY_;this.startDragMouseY_=a.clientY;a=this.getMetrics_();b=a.viewTop-b;b=Math.min(b,a.contentHeight-a.viewHeight);b=Math.max(b,0);this.scrollbar_.set(b)};
 Blockly.Flyout.prototype.onMouseMoveBlock_=function(a){if("mousemove"==a.type&&1>=a.clientX&&0==a.clientY&&0==a.button)a.stopPropagation();else{var b=a.clientX-Blockly.Flyout.startDownEvent_.clientX;a=a.clientY-Blockly.Flyout.startDownEvent_.clientY;Math.sqrt(b*b+a*a)>Blockly.DRAG_RADIUS&&Blockly.Flyout.startFlyout_.createBlockFunc_(Blockly.Flyout.startBlock_)(Blockly.Flyout.startDownEvent_)}};
-Blockly.Flyout.prototype.createBlockFunc_=function(a){var b=this,c=this.targetWorkspace_;return function(d){if(!Blockly.isRightButton(d)&&!a.disabled){Blockly.Events.disable();var f=Blockly.Xml.blockToDom(a),f=Blockly.Xml.domToBlock(f,c),g=a.getSvgRoot();if(!g)throw"originBlock is not rendered.";g=Blockly.getSvgXY_(g,c);if(b.RTL){var h=c.getMetrics().viewWidth-b.width_;g.x+=h/c.scale-h}else g.x+=b.workspace_.scrollX/b.workspace_.scale-b.workspace_.scrollX;g.y+=b.workspace_.scrollY/b.workspace_.scale-
-b.workspace_.scrollY;h=f.getSvgRoot();if(!h)throw"block is not rendered.";h=Blockly.getSvgXY_(h,c);h.x+=c.scrollX/c.scale-c.scrollX;h.y+=c.scrollY/c.scale-c.scrollY;c.toolbox_&&!c.scrollbar&&(h.x+=c.toolbox_.width/c.scale);f.moveBy(g.x-h.x,g.y-h.y);Blockly.Events.enable();Blockly.Events.isEnabled()&&(Blockly.Events.setGroup(!0),Blockly.Events.fire(new Blockly.Events.Create(f)));b.autoClose?b.hide():b.filterForCapacity_();f.onMouseDown_(d);Blockly.dragMode_=Blockly.DRAG_FREE;f.setDragging_(!0)}}};
-Blockly.Flyout.prototype.filterForCapacity_=function(){for(var a=this.targetWorkspace_.remainingCapacity(),b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++)if(-1==this.permanentlyDisabled_.indexOf(d)){var f=d.getDescendants();d.setDisabled(f.length>a)}};Blockly.Flyout.prototype.getClientRect=function(){var a=this.svgGroup_.getBoundingClientRect();if(this.RTL){var b=a.left+a.width+1E9;return new goog.math.Rect(a.left,-1E9,b,2E9)}b=1E9+a.width+a.left;return new goog.math.Rect(-1E9,-1E9,b,2E9)};
+Blockly.Flyout.prototype.createBlockFunc_=function(a){var b=this,c=this.targetWorkspace_;return function(d){if(!Blockly.isRightButton(d)&&!a.disabled){Blockly.Events.disable();var e=Blockly.Xml.blockToDom(a),e=Blockly.Xml.domToBlock(e,c),f=a.getSvgRoot();if(!f)throw"originBlock is not rendered.";f=Blockly.getSvgXY_(f,c);if(b.RTL){var g=c.getMetrics().viewWidth-b.width_;f.x+=g/c.scale-g}else f.x+=b.workspace_.scrollX/b.workspace_.scale-b.workspace_.scrollX;f.y+=b.workspace_.scrollY/b.workspace_.scale-
+b.workspace_.scrollY;g=e.getSvgRoot();if(!g)throw"block is not rendered.";g=Blockly.getSvgXY_(g,c);g.x+=c.scrollX/c.scale-c.scrollX;g.y+=c.scrollY/c.scale-c.scrollY;c.toolbox_&&!c.scrollbar&&(g.x+=c.toolbox_.width/c.scale);e.moveBy(f.x-g.x,f.y-g.y);Blockly.Events.enable();Blockly.Events.isEnabled()&&(Blockly.Events.setGroup(!0),Blockly.Events.fire(new Blockly.Events.Create(e)));b.autoClose?b.hide():b.filterForCapacity_();e.onMouseDown_(d);Blockly.dragMode_=Blockly.DRAG_FREE;e.setDragging_(!0)}}};
+Blockly.Flyout.prototype.filterForCapacity_=function(){for(var a=this.targetWorkspace_.remainingCapacity(),b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++)if(-1==this.permanentlyDisabled_.indexOf(d)){var e=d.getDescendants();d.setDisabled(e.length>a)}};Blockly.Flyout.prototype.getClientRect=function(){var a=this.svgGroup_.getBoundingClientRect();if(this.RTL){var b=a.left+a.width+1E9;return new goog.math.Rect(a.left,-1E9,b,2E9)}b=1E9+a.width+a.left;return new goog.math.Rect(-1E9,-1E9,b,2E9)};
 Blockly.Flyout.terminateDrag_=function(){Blockly.Flyout.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Flyout.onMouseUpWrapper_),Blockly.Flyout.onMouseUpWrapper_=null);Blockly.Flyout.onMouseMoveBlockWrapper_&&(Blockly.unbindEvent_(Blockly.Flyout.onMouseMoveBlockWrapper_),Blockly.Flyout.onMouseMoveBlockWrapper_=null);Blockly.Flyout.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.Flyout.onMouseMoveWrapper_),Blockly.Flyout.onMouseMoveWrapper_=null);Blockly.Flyout.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Flyout.onMouseUpWrapper_),
 Blockly.Flyout.onMouseUpWrapper_=null);Blockly.Flyout.startDownEvent_=null;Blockly.Flyout.startBlock_=null;Blockly.Flyout.startFlyout_=null};Blockly.Toolbox=function(a){this.workspace_=a};Blockly.Toolbox.prototype.width=0;Blockly.Toolbox.prototype.selectedOption_=null;Blockly.Toolbox.prototype.lastCategory_=null;Blockly.Toolbox.prototype.CONFIG_={indentWidth:19,cssRoot:"blocklyTreeRoot",cssHideRoot:"blocklyHidden",cssItem:"",cssTreeRow:"blocklyTreeRow",cssItemLabel:"blocklyTreeLabel",cssTreeIcon:"blocklyTreeIcon",cssExpandedFolderIcon:"blocklyTreeIconOpen",cssFileIcon:"blocklyTreeIconNone",cssSelectedRow:"blocklyTreeSelected"};
 Blockly.Toolbox.prototype.init=function(){var a=this.workspace_;this.HtmlDiv=goog.dom.createDom("div","blocklyToolboxDiv");this.HtmlDiv.setAttribute("dir",a.RTL?"RTL":"LTR");document.body.appendChild(this.HtmlDiv);Blockly.bindEvent_(this.HtmlDiv,"mousedown",this,function(a){Blockly.isRightButton(a)||a.target==this.HtmlDiv?Blockly.hideChaff(!1):Blockly.hideChaff(!0)});this.flyout_=new Blockly.Flyout({disabledPatternId:a.options.disabledPatternId,parentWorkspace:a,RTL:a.RTL});goog.dom.insertSiblingAfter(this.flyout_.createDom(),
 a.svgGroup_);this.flyout_.init(a);this.CONFIG_.cleardotPath=a.options.pathToMedia+"1x1.gif";this.CONFIG_.cssCollapsedFolderIcon="blocklyTreeIconClosed"+(a.RTL?"Rtl":"Ltr");var b=new Blockly.Toolbox.TreeControl(this,this.CONFIG_);this.tree_=b;b.setShowRootNode(!1);b.setShowLines(!1);b.setShowExpandIcons(!1);b.setSelectedItem(null);this.populate_(a.options.languageTree);b.render(this.HtmlDiv);this.addColour_();this.position()};
 Blockly.Toolbox.prototype.dispose=function(){this.flyout_.dispose();this.tree_.dispose();goog.dom.removeNode(this.HtmlDiv);this.lastCategory_=this.workspace_=null};
 Blockly.Toolbox.prototype.position=function(){var a=this.HtmlDiv;if(a){var b=this.workspace_.getParentSvg(),c=goog.style.getPageOffset(b),b=Blockly.svgSize(b);a.style.left=this.workspace_.RTL?c.x+b.width-a.offsetWidth+"px":c.x+"px";a.style.height=b.height+"px";a.style.top=c.y+"px";this.width=a.offsetWidth;this.workspace_.RTL||--this.width;this.flyout_.position()}};
-Blockly.Toolbox.prototype.populate_=function(a){function b(a,g){for(var h=null,k=0,l;l=a.childNodes[k];k++)if(l.tagName)switch(l.tagName.toUpperCase()){case "CATEGORY":h=c.createNode(l.getAttribute("name"));h.blocks=[];g.add(h);var m=l.getAttribute("custom");m?h.blocks=m:b(l,h);m=l.getAttribute("colour");goog.isString(m)?(m.match(/^#[0-9a-fA-F]{6}$/)?h.hexColour=m:h.hexColour=Blockly.hueToRgb(m),d=!0):h.hexColour="";"true"==l.getAttribute("expanded")?(h.blocks.length&&c.setSelectedItem(h),h.setExpanded(!0)):
-h.setExpanded(!1);h=l;break;case "SEP":h&&("CATEGORY"==h.tagName.toUpperCase()?g.add(new Blockly.Toolbox.TreeSeparator):(l=parseFloat(l.getAttribute("gap")),isNaN(l)||(m=parseFloat(h.getAttribute("gap")),l=isNaN(m)?l:m+l,h.setAttribute("gap",l))));break;case "BLOCK":case "SHADOW":g.blocks.push(l),h=l}}var c=this.tree_;c.removeChildren();c.blocks=[];var d=!1;b(a,this.tree_);this.hasColours_=d;if(c.blocks.length)throw"Toolbox cannot have both blocks and categories in the root level.";Blockly.fireUiEvent(window,
-"resize")};Blockly.Toolbox.prototype.addColour_=function(a){a=(a||this.tree_).getChildren();for(var b=0,c;c=a[b];b++){var d=c.getRowElement();if(d){var f=this.hasColours_?"8px solid "+(c.hexColour||"#ddd"):"none";this.workspace_.RTL?d.style.borderRight=f:d.style.borderLeft=f}this.addColour_(c)}};Blockly.Toolbox.prototype.clearSelection=function(){this.tree_.setSelectedItem(null)};
+Blockly.Toolbox.prototype.populate_=function(a){function b(a,f){for(var g=null,h=0,k;k=a.childNodes[h];h++)if(k.tagName)switch(k.tagName.toUpperCase()){case "CATEGORY":g=c.createNode(k.getAttribute("name"));g.blocks=[];f.add(g);var l=k.getAttribute("custom");l?g.blocks=l:b(k,g);l=k.getAttribute("colour");goog.isString(l)?(l.match(/^#[0-9a-fA-F]{6}$/)?g.hexColour=l:g.hexColour=Blockly.hueToRgb(l),d=!0):g.hexColour="";"true"==k.getAttribute("expanded")?(g.blocks.length&&c.setSelectedItem(g),g.setExpanded(!0)):
+g.setExpanded(!1);g=k;break;case "SEP":g&&("CATEGORY"==g.tagName.toUpperCase()?f.add(new Blockly.Toolbox.TreeSeparator):(k=parseFloat(k.getAttribute("gap")),isNaN(k)||(l=parseFloat(g.getAttribute("gap")),k=isNaN(l)?k:l+k,g.setAttribute("gap",k))));break;case "BLOCK":case "SHADOW":f.blocks.push(k),g=k}}var c=this.tree_;c.removeChildren();c.blocks=[];var d=!1;b(a,this.tree_);this.hasColours_=d;if(c.blocks.length)throw"Toolbox cannot have both blocks and categories in the root level.";Blockly.fireUiEvent(window,
+"resize")};Blockly.Toolbox.prototype.addColour_=function(a){a=(a||this.tree_).getChildren();for(var b=0,c;c=a[b];b++){var d=c.getRowElement();if(d){var e=this.hasColours_?"8px solid "+(c.hexColour||"#ddd"):"none";this.workspace_.RTL?d.style.borderRight=e:d.style.borderLeft=e}this.addColour_(c)}};Blockly.Toolbox.prototype.clearSelection=function(){this.tree_.setSelectedItem(null)};
 Blockly.Toolbox.prototype.getClientRect=function(){var a=this.HtmlDiv.getBoundingClientRect();if(this.workspace_.RTL){var b=a.left+a.width+1E7;return new goog.math.Rect(a.left,-1E7,b,2E7)}b=1E7+a.width+a.left;return new goog.math.Rect(-1E7,-1E7,b,2E7)};Blockly.Toolbox.TreeControl=function(a,b){this.toolbox_=a;goog.ui.tree.TreeControl.call(this,goog.html.SafeHtml.EMPTY,b)};goog.inherits(Blockly.Toolbox.TreeControl,goog.ui.tree.TreeControl);
 Blockly.Toolbox.TreeControl.prototype.enterDocument=function(){Blockly.Toolbox.TreeControl.superClass_.enterDocument.call(this);if(goog.events.BrowserFeature.TOUCH_ENABLED){var a=this.getElement();Blockly.bindEvent_(a,goog.events.EventType.TOUCHSTART,this,this.handleTouchEvent_)}};Blockly.Toolbox.TreeControl.prototype.handleTouchEvent_=function(a){a.preventDefault();var b=this.getNodeFromEvent_(a);b&&a.type===goog.events.EventType.TOUCHSTART&&setTimeout(function(){b.onMouseDown(a)},1)};
 Blockly.Toolbox.TreeControl.prototype.createNode=function(a){return new Blockly.Toolbox.TreeNode(this.toolbox_,a?goog.html.SafeHtml.htmlEscape(a):goog.html.SafeHtml.EMPTY,this.getConfig(),this.getDomHelper())};
@@ -1322,7 +1321,7 @@ a&&c!=this&&(c=new Blockly.Events.Ui(null,"category",c&&c.getHtml(),a&&a.getHtml
 Blockly.Toolbox.TreeNode.prototype.getExpandIconSafeHtml=function(){return goog.html.SafeHtml.create("span")};Blockly.Toolbox.TreeNode.prototype.onMouseDown=function(a){this.hasChildren()&&this.isUserCollapsible_?(this.toggle(),this.select()):this.isSelected()?this.getTree().setSelectedItem(null):this.select();this.updateRow()};Blockly.Toolbox.TreeNode.prototype.onDoubleClick_=function(a){};Blockly.Toolbox.TreeSeparator=function(){Blockly.Toolbox.TreeNode.call(this,null,"",Blockly.Toolbox.TreeSeparator.CONFIG_)};
 goog.inherits(Blockly.Toolbox.TreeSeparator,Blockly.Toolbox.TreeNode);Blockly.Toolbox.TreeSeparator.CONFIG_={cssTreeRow:"blocklyTreeSeparator"};Blockly.Css={};Blockly.Css.Cursor={OPEN:"handopen",CLOSED:"handclosed",DELETE:"handdelete"};Blockly.Css.currentCursor_="";Blockly.Css.styleSheet_=null;Blockly.Css.mediaPath_="";
 Blockly.Css.inject=function(a,b){if(!Blockly.Css.styleSheet_){var c=".blocklyDraggable {}\n";a&&(c+=Blockly.Css.CONTENT.join("\n"),Blockly.FieldDate&&(c+=Blockly.FieldDate.CSS.join("\n")));Blockly.Css.mediaPath_=b.replace(/[\\\/]$/,"");var c=c.replace(/<<<PATH>>>/g,Blockly.Css.mediaPath_),d=document.createElement("style");document.head.appendChild(d);c=document.createTextNode(c);d.appendChild(c);Blockly.Css.styleSheet_=d.sheet;Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN)}};
-Blockly.Css.setCursor=function(a){if(Blockly.Css.currentCursor_!=a){Blockly.Css.currentCursor_=a;var b="url("+Blockly.Css.mediaPath_+"/"+a+".cur), auto",c=".blocklyDraggable {\n  cursor: "+b+";\n}\n";Blockly.Css.styleSheet_.deleteRule(0);Blockly.Css.styleSheet_.insertRule(c,0);for(var c=document.getElementsByClassName("blocklyToolboxDiv"),d=0,f;f=c[d];d++)f.style.cursor=a==Blockly.Css.Cursor.DELETE?b:"";document.body.parentNode.style.cursor=a==Blockly.Css.Cursor.OPEN?"":b}};
+Blockly.Css.setCursor=function(a){if(Blockly.Css.currentCursor_!=a){Blockly.Css.currentCursor_=a;var b="url("+Blockly.Css.mediaPath_+"/"+a+".cur), auto",c=".blocklyDraggable {\n  cursor: "+b+";\n}\n";Blockly.Css.styleSheet_.deleteRule(0);Blockly.Css.styleSheet_.insertRule(c,0);for(var c=document.getElementsByClassName("blocklyToolboxDiv"),d=0,e;e=c[d];d++)e.style.cursor=a==Blockly.Css.Cursor.DELETE?b:"";document.body.parentNode.style.cursor=a==Blockly.Css.Cursor.OPEN?"":b}};
 Blockly.Css.CONTENT=[".blocklySvg {","background-color: #fff;","outline: none;","overflow: hidden;","}",".blocklyWidgetDiv {","display: none;","position: absolute;","z-index: 999;","}",".blocklyNonSelectable {","user-select: none;","-moz-user-select: none;","-webkit-user-select: none;","-ms-user-select: none;","}",".blocklyTooltipDiv {","background-color: #ffffc7;","border: 1px solid #ddc;","box-shadow: 4px 4px 20px 1px rgba(0,0,0,.15);","color: #000;","display: none;","font-family: sans-serif;",
 "font-size: 9pt;","opacity: 0.9;","padding: 2px;","position: absolute;","z-index: 1000;","}",".blocklyResizeSE {","cursor: se-resize;","fill: #aaa;","}",".blocklyResizeSW {","cursor: sw-resize;","fill: #aaa;","}",".blocklyResizeLine {","stroke: #888;","stroke-width: 1;","}",".blocklyHighlightedConnectionPath {","fill: none;","stroke: #fc3;","stroke-width: 4px;","}",".blocklyPathLight {","fill: none;","stroke-linecap: round;","stroke-width: 1;","}",".blocklySelected>.blocklyPath {","stroke: #fc3;",
 "stroke-width: 3px;","}",".blocklySelected>.blocklyPathLight {","display: none;","}",".blocklyDragging>.blocklyPath,",".blocklyDragging>.blocklyPathLight {","fill-opacity: .8;","stroke-opacity: .8;","}",".blocklyDragging>.blocklyPathDark {","display: none;","}",".blocklyDisabled>.blocklyPath {","fill-opacity: .5;","stroke-opacity: .5;","}",".blocklyDisabled>.blocklyPathLight,",".blocklyDisabled>.blocklyPathDark {","display: none;","}",".blocklyText {","cursor: default;","fill: #fff;","font-family: sans-serif;",
@@ -1343,42 +1342,42 @@ Blockly.Css.CONTENT=[".blocklySvg {","background-color: #fff;","outline: none;",
 "}",".blocklyWidgetDiv .goog-menuitem-mnemonic-separator {","color: #999;","font-size: 12px;","padding-left: 4px;","}",".blocklyWidgetDiv .goog-menuseparator {","border-top: 1px solid #ccc;","margin: 4px 0;","padding: 0;","}",""];Blockly.WidgetDiv={};Blockly.WidgetDiv.DIV=null;Blockly.WidgetDiv.owner_=null;Blockly.WidgetDiv.dispose_=null;Blockly.WidgetDiv.createDom=function(){Blockly.WidgetDiv.DIV||(Blockly.WidgetDiv.DIV=goog.dom.createDom("div","blocklyWidgetDiv"),document.body.appendChild(Blockly.WidgetDiv.DIV))};
 Blockly.WidgetDiv.show=function(a,b,c){Blockly.WidgetDiv.hide();Blockly.WidgetDiv.owner_=a;Blockly.WidgetDiv.dispose_=c;a=goog.style.getViewportPageOffset(document);Blockly.WidgetDiv.DIV.style.top=a.y+"px";Blockly.WidgetDiv.DIV.style.direction=b?"rtl":"ltr";Blockly.WidgetDiv.DIV.style.display="block"};
 Blockly.WidgetDiv.hide=function(){Blockly.WidgetDiv.owner_&&(Blockly.WidgetDiv.owner_=null,Blockly.WidgetDiv.DIV.style.display="none",Blockly.WidgetDiv.DIV.style.left="",Blockly.WidgetDiv.DIV.style.top="",Blockly.WidgetDiv.DIV.style.height="",Blockly.WidgetDiv.dispose_&&Blockly.WidgetDiv.dispose_(),Blockly.WidgetDiv.dispose_=null,goog.dom.removeChildren(Blockly.WidgetDiv.DIV))};Blockly.WidgetDiv.isVisible=function(){return!!Blockly.WidgetDiv.owner_};
-Blockly.WidgetDiv.hideIfOwner=function(a){Blockly.WidgetDiv.owner_==a&&Blockly.WidgetDiv.hide()};Blockly.WidgetDiv.position=function(a,b,c,d,f){b<d.y&&(b=d.y);f?a>c.width+d.x&&(a=c.width+d.x):a<d.x&&(a=d.x);Blockly.WidgetDiv.DIV.style.left=a+"px";Blockly.WidgetDiv.DIV.style.top=b+"px";Blockly.WidgetDiv.DIV.style.height=c.height-b+d.y+"px"};Blockly.constants={};Blockly.DRAG_RADIUS=5;Blockly.SNAP_RADIUS=20;Blockly.BUMP_DELAY=250;Blockly.COLLAPSE_CHARS=30;Blockly.LONGPRESS=750;Blockly.HSV_SATURATION=.45;Blockly.HSV_VALUE=.65;Blockly.SPRITE={width:96,height:124,url:"sprites.png"};Blockly.SVG_NS="http://www.w3.org/2000/svg";Blockly.HTML_NS="http://www.w3.org/1999/xhtml";Blockly.INPUT_VALUE=1;Blockly.OUTPUT_VALUE=2;Blockly.NEXT_STATEMENT=3;Blockly.PREVIOUS_STATEMENT=4;Blockly.DUMMY_INPUT=5;Blockly.ALIGN_LEFT=-1;Blockly.ALIGN_CENTRE=0;
+Blockly.WidgetDiv.hideIfOwner=function(a){Blockly.WidgetDiv.owner_==a&&Blockly.WidgetDiv.hide()};Blockly.WidgetDiv.position=function(a,b,c,d,e){b<d.y&&(b=d.y);e?a>c.width+d.x&&(a=c.width+d.x):a<d.x&&(a=d.x);Blockly.WidgetDiv.DIV.style.left=a+"px";Blockly.WidgetDiv.DIV.style.top=b+"px";Blockly.WidgetDiv.DIV.style.height=c.height-b+d.y+"px"};Blockly.constants={};Blockly.DRAG_RADIUS=5;Blockly.SNAP_RADIUS=20;Blockly.BUMP_DELAY=250;Blockly.COLLAPSE_CHARS=30;Blockly.LONGPRESS=750;Blockly.HSV_SATURATION=.45;Blockly.HSV_VALUE=.65;Blockly.SPRITE={width:96,height:124,url:"sprites.png"};Blockly.SVG_NS="http://www.w3.org/2000/svg";Blockly.HTML_NS="http://www.w3.org/1999/xhtml";Blockly.INPUT_VALUE=1;Blockly.OUTPUT_VALUE=2;Blockly.NEXT_STATEMENT=3;Blockly.PREVIOUS_STATEMENT=4;Blockly.DUMMY_INPUT=5;Blockly.ALIGN_LEFT=-1;Blockly.ALIGN_CENTRE=0;
 Blockly.ALIGN_RIGHT=1;Blockly.DRAG_NONE=0;Blockly.DRAG_STICKY=1;Blockly.DRAG_FREE=2;Blockly.OPPOSITE_TYPE=[];Blockly.OPPOSITE_TYPE[Blockly.INPUT_VALUE]=Blockly.OUTPUT_VALUE;Blockly.OPPOSITE_TYPE[Blockly.OUTPUT_VALUE]=Blockly.INPUT_VALUE;Blockly.OPPOSITE_TYPE[Blockly.NEXT_STATEMENT]=Blockly.PREVIOUS_STATEMENT;Blockly.OPPOSITE_TYPE[Blockly.PREVIOUS_STATEMENT]=Blockly.NEXT_STATEMENT;Blockly.inject=function(a,b){goog.isString(a)&&(a=document.getElementById(a)||document.querySelector(a));if(!goog.dom.contains(document,a))throw"Error: container is not in current document.";var c=new Blockly.Options(b||{}),d=Blockly.createDom_(a,c),c=Blockly.createMainWorkspace_(d,c);Blockly.init_(c);c.markFocused();Blockly.bindEvent_(d,"focus",c,c.markFocused);return c};
-Blockly.createDom_=function(a,b){a.setAttribute("dir","LTR");goog.ui.Component.setDefaultRightToLeft(b.RTL);Blockly.Css.inject(b.hasCss,b.pathToMedia);var c=Blockly.createSvgElement("svg",{xmlns:"http://www.w3.org/2000/svg","xmlns:html":"http://www.w3.org/1999/xhtml","xmlns:xlink":"http://www.w3.org/1999/xlink",version:"1.1","class":"blocklySvg"},a),d=Blockly.createSvgElement("defs",{},c),f=String(Math.random()).substring(2),g=Blockly.createSvgElement("filter",{id:"blocklyEmbossFilter"+f},d);Blockly.createSvgElement("feGaussianBlur",
-{"in":"SourceAlpha",stdDeviation:1,result:"blur"},g);var h=Blockly.createSvgElement("feSpecularLighting",{"in":"blur",surfaceScale:1,specularConstant:.5,specularExponent:10,"lighting-color":"white",result:"specOut"},g);Blockly.createSvgElement("fePointLight",{x:-5E3,y:-1E4,z:2E4},h);Blockly.createSvgElement("feComposite",{"in":"specOut",in2:"SourceAlpha",operator:"in",result:"specOut"},g);Blockly.createSvgElement("feComposite",{"in":"SourceGraphic",in2:"specOut",operator:"arithmetic",k1:0,k2:1,k3:1,
-k4:0},g);b.embossFilterId=g.id;g=Blockly.createSvgElement("pattern",{id:"blocklyDisabledPattern"+f,patternUnits:"userSpaceOnUse",width:10,height:10},d);Blockly.createSvgElement("rect",{width:10,height:10,fill:"#aaa"},g);Blockly.createSvgElement("path",{d:"M 0 0 L 10 10 M 10 0 L 0 10",stroke:"#cc0"},g);b.disabledPatternId=g.id;d=Blockly.createSvgElement("pattern",{id:"blocklyGridPattern"+f,patternUnits:"userSpaceOnUse"},d);0<b.gridOptions.length&&0<b.gridOptions.spacing&&(Blockly.createSvgElement("line",
+Blockly.createDom_=function(a,b){a.setAttribute("dir","LTR");goog.ui.Component.setDefaultRightToLeft(b.RTL);Blockly.Css.inject(b.hasCss,b.pathToMedia);var c=Blockly.createSvgElement("svg",{xmlns:"http://www.w3.org/2000/svg","xmlns:html":"http://www.w3.org/1999/xhtml","xmlns:xlink":"http://www.w3.org/1999/xlink",version:"1.1","class":"blocklySvg"},a),d=Blockly.createSvgElement("defs",{},c),e=String(Math.random()).substring(2),f=Blockly.createSvgElement("filter",{id:"blocklyEmbossFilter"+e},d);Blockly.createSvgElement("feGaussianBlur",
+{"in":"SourceAlpha",stdDeviation:1,result:"blur"},f);var g=Blockly.createSvgElement("feSpecularLighting",{"in":"blur",surfaceScale:1,specularConstant:.5,specularExponent:10,"lighting-color":"white",result:"specOut"},f);Blockly.createSvgElement("fePointLight",{x:-5E3,y:-1E4,z:2E4},g);Blockly.createSvgElement("feComposite",{"in":"specOut",in2:"SourceAlpha",operator:"in",result:"specOut"},f);Blockly.createSvgElement("feComposite",{"in":"SourceGraphic",in2:"specOut",operator:"arithmetic",k1:0,k2:1,k3:1,
+k4:0},f);b.embossFilterId=f.id;f=Blockly.createSvgElement("pattern",{id:"blocklyDisabledPattern"+e,patternUnits:"userSpaceOnUse",width:10,height:10},d);Blockly.createSvgElement("rect",{width:10,height:10,fill:"#aaa"},f);Blockly.createSvgElement("path",{d:"M 0 0 L 10 10 M 10 0 L 0 10",stroke:"#cc0"},f);b.disabledPatternId=f.id;d=Blockly.createSvgElement("pattern",{id:"blocklyGridPattern"+e,patternUnits:"userSpaceOnUse"},d);0<b.gridOptions.length&&0<b.gridOptions.spacing&&(Blockly.createSvgElement("line",
 {stroke:b.gridOptions.colour},d),1<b.gridOptions.length&&Blockly.createSvgElement("line",{stroke:b.gridOptions.colour},d));b.gridPattern=d;return c};
-Blockly.createMainWorkspace_=function(a,b){b.parentWorkspace=null;b.getMetrics=Blockly.getMainWorkspaceMetrics_;b.setMetrics=Blockly.setMainWorkspaceMetrics_;var c=new Blockly.WorkspaceSvg(b);c.scale=b.zoomOptions.startScale;a.appendChild(c.createDom("blocklyMainBackground"));c.translate(0,0);c.markFocused();b.readOnly||b.hasScrollbars||c.addChangeListener(function(){if(Blockly.dragMode_==Blockly.DRAG_NONE){var a=c.getMetrics(),f=a.viewLeft+a.absoluteLeft,g=a.viewTop+a.absoluteTop;if(a.contentTop<
-g||a.contentTop+a.contentHeight>a.viewHeight+g||a.contentLeft<(b.RTL?a.viewLeft:f)||a.contentLeft+a.contentWidth>(b.RTL?a.viewWidth:a.viewWidth+f))for(var h=c.getTopBlocks(!1),k=0,l;l=h[k];k++){var m=l.getRelativeToSurfaceXY(),r=l.getHeightWidth(),n=g+25-r.height-m.y;0<n&&l.moveBy(0,n);n=g+a.viewHeight-25-m.y;0>n&&l.moveBy(0,n);n=25+f-m.x-(b.RTL?0:r.width);0<n&&l.moveBy(n,0);n=f+a.viewWidth-25-m.x+(b.RTL?r.width:0);0>n&&l.moveBy(n,0)}}});Blockly.svgResize(c);Blockly.WidgetDiv.createDom();Blockly.Tooltip.createDom();
+Blockly.createMainWorkspace_=function(a,b){b.parentWorkspace=null;b.getMetrics=Blockly.getMainWorkspaceMetrics_;b.setMetrics=Blockly.setMainWorkspaceMetrics_;var c=new Blockly.WorkspaceSvg(b);c.scale=b.zoomOptions.startScale;a.appendChild(c.createDom("blocklyMainBackground"));c.translate(0,0);c.markFocused();b.readOnly||b.hasScrollbars||c.addChangeListener(function(){if(Blockly.dragMode_==Blockly.DRAG_NONE){var a=c.getMetrics(),e=a.viewLeft+a.absoluteLeft,f=a.viewTop+a.absoluteTop;if(a.contentTop<
+f||a.contentTop+a.contentHeight>a.viewHeight+f||a.contentLeft<(b.RTL?a.viewLeft:e)||a.contentLeft+a.contentWidth>(b.RTL?a.viewWidth:a.viewWidth+e))for(var g=c.getTopBlocks(!1),h=0,k;k=g[h];h++){var l=k.getRelativeToSurfaceXY(),q=k.getHeightWidth(),m=f+25-q.height-l.y;0<m&&k.moveBy(0,m);m=f+a.viewHeight-25-l.y;0>m&&k.moveBy(0,m);m=25+e-l.x-(b.RTL?0:q.width);0<m&&k.moveBy(m,0);m=e+a.viewWidth-25-l.x+(b.RTL?q.width:0);0>m&&k.moveBy(m,0)}}});Blockly.svgResize(c);Blockly.WidgetDiv.createDom();Blockly.Tooltip.createDom();
 return c};
 Blockly.init_=function(a){var b=a.options,c=a.getParentSvg();Blockly.bindEvent_(c,"contextmenu",null,function(a){Blockly.isTargetInput_(a)||a.preventDefault()});Blockly.bindEvent_(window,"resize",null,function(){Blockly.svgResize(a)});Blockly.inject.bindDocumentEvents_();b.languageTree&&(a.toolbox_?a.toolbox_.init(a):a.flyout_&&(a.flyout_.init(a),a.flyout_.show(b.languageTree.childNodes),a.scrollX=a.flyout_.width_,b.RTL&&(a.scrollX*=-1),a.translate(a.scrollX,0)));b.hasScrollbars&&(a.scrollbar=new Blockly.ScrollbarPair(a),
 a.scrollbar.resize());b.hasSounds&&Blockly.inject.loadSounds_(b.pathToMedia,a)};
 Blockly.inject.bindDocumentEvents_=function(){Blockly.documentEventsBound_||(Blockly.bindEvent_(document,"keydown",null,Blockly.onKeyDown_),Blockly.bindEvent_(document,"touchend",null,Blockly.longStop_),Blockly.bindEvent_(document,"touchcancel",null,Blockly.longStop_),document.addEventListener("mouseup",Blockly.onMouseUp_,!1),goog.userAgent.IPAD&&Blockly.bindEvent_(window,"orientationchange",document,function(){Blockly.fireUiEvent(window,"resize")}));Blockly.documentEventsBound_=!0};
 Blockly.inject.loadSounds_=function(a,b){b.loadAudio_([a+"click.mp3",a+"click.wav",a+"click.ogg"],"click");b.loadAudio_([a+"disconnect.wav",a+"disconnect.mp3",a+"disconnect.ogg"],"disconnect");b.loadAudio_([a+"delete.mp3",a+"delete.ogg",a+"delete.wav"],"delete");var c=[],d=function(){for(;c.length;)Blockly.unbindEvent_(c.pop());b.preloadAudio_()};c.push(Blockly.bindEvent_(document,"mousemove",null,d));c.push(Blockly.bindEvent_(document,"touchstart",null,d))};
 Blockly.updateToolbox=function(a){console.warn("Deprecated call to Blockly.updateToolbox, use workspace.updateToolbox instead.");Blockly.getMainWorkspace().updateToolbox(a)};Blockly.utils={};Blockly.addClass_=function(a,b){var c=a.getAttribute("class")||"";-1==(" "+c+" ").indexOf(" "+b+" ")&&(c&&(c+=" "),a.setAttribute("class",c+b))};Blockly.removeClass_=function(a,b){var c=a.getAttribute("class");if(-1!=(" "+c+" ").indexOf(" "+b+" ")){for(var c=c.split(/\s+/),d=0;d<c.length;d++)c[d]&&c[d]!=b||(c.splice(d,1),d--);c.length?a.setAttribute("class",c.join(" ")):a.removeAttribute("class")}};
-Blockly.hasClass_=function(a,b){return-1!=(" "+a.getAttribute("class")+" ").indexOf(" "+b+" ")};Blockly.bindEvent_=function(a,b,c,d){var f=c?function(a){d.call(c,a)}:d;a.addEventListener(b,f,!1);var g=[[a,b,f]];if(b in Blockly.bindEvent_.TOUCH_MAP)for(var f=function(a){if(1==a.changedTouches.length){var b=a.changedTouches[0];a.clientX=b.clientX;a.clientY=b.clientY}d.call(c,a);a.preventDefault()},h=0,k;k=Blockly.bindEvent_.TOUCH_MAP[b][h];h++)a.addEventListener(k,f,!1),g.push([a,k,f]);return g};
+Blockly.hasClass_=function(a,b){return-1!=(" "+a.getAttribute("class")+" ").indexOf(" "+b+" ")};Blockly.bindEvent_=function(a,b,c,d){var e=c?function(a){d.call(c,a)}:d;a.addEventListener(b,e,!1);var f=[[a,b,e]];if(b in Blockly.bindEvent_.TOUCH_MAP)for(var e=function(a){if(1==a.changedTouches.length){var b=a.changedTouches[0];a.clientX=b.clientX;a.clientY=b.clientY}d.call(c,a);a.preventDefault()},g=0,h;h=Blockly.bindEvent_.TOUCH_MAP[b][g];g++)a.addEventListener(h,e,!1),f.push([a,h,e]);return f};
 Blockly.bindEvent_.TOUCH_MAP={};goog.events.BrowserFeature.TOUCH_ENABLED&&(Blockly.bindEvent_.TOUCH_MAP={mousedown:["touchstart"],mousemove:["touchmove"],mouseup:["touchend","touchcancel"]});Blockly.unbindEvent_=function(a){for(;a.length;){var b=a.pop(),c=b[2];b[0].removeEventListener(b[1],c,!1)}return c};
 Blockly.fireUiEventNow=function(a,b){var c=Blockly.fireUiEvent.DB_[b];if(c){var d=c.indexOf(a);-1!=d&&c.splice(d,1)}"function"==typeof UIEvent?c=new UIEvent(b,{}):(c=document.createEvent("UIEvent"),c.initUIEvent(b,!1,!1,window,0));a.dispatchEvent(c)};Blockly.fireUiEvent=function(a,b){var c=Blockly.fireUiEvent.DB_[b];if(c){if(-1!=c.indexOf(a))return;c.push(a)}else Blockly.fireUiEvent.DB_[b]=[a];setTimeout(function(){Blockly.fireUiEventNow(a,b)},0)};Blockly.fireUiEvent.DB_={};
 Blockly.noEvent=function(a){a.preventDefault();a.stopPropagation()};Blockly.isTargetInput_=function(a){return"textarea"==a.target.type||"text"==a.target.type||"number"==a.target.type||"email"==a.target.type||"password"==a.target.type||"search"==a.target.type||"tel"==a.target.type||"url"==a.target.type||a.target.isContentEditable};
 Blockly.getRelativeXY_=function(a){var b=new goog.math.Coordinate(0,0),c=a.getAttribute("x");c&&(b.x=parseInt(c,10));if(c=a.getAttribute("y"))b.y=parseInt(c,10);if(a=(a=a.getAttribute("transform"))&&a.match(Blockly.getRelativeXY_.XY_REGEXP_))b.x+=parseFloat(a[1]),a[3]&&(b.y+=parseFloat(a[3]));return b};Blockly.getRelativeXY_.XY_REGEXP_=/translate\(\s*([-+\d.e]+)([ ,]\s*([-+\d.e]+)\s*\))?/;
-Blockly.getSvgXY_=function(a,b){var c=0,d=0,f=1;if(goog.dom.contains(b.getCanvas(),a)||goog.dom.contains(b.getBubbleCanvas(),a))f=b.scale;do{var g=Blockly.getRelativeXY_(a);if(a==b.getCanvas()||a==b.getBubbleCanvas())f=1;c+=g.x*f;d+=g.y*f;a=a.parentNode}while(a&&a!=b.getParentSvg());return new goog.math.Coordinate(c,d)};
-Blockly.createSvgElement=function(a,b,c,d){a=document.createElementNS(Blockly.SVG_NS,a);for(var f in b)a.setAttribute(f,b[f]);document.body.runtimeStyle&&(a.runtimeStyle=a.currentStyle=a.style);c&&c.appendChild(a);return a};Blockly.setPageSelectable=function(a){a?Blockly.removeClass_(document.body,"blocklyNonSelectable"):Blockly.addClass_(document.body,"blocklyNonSelectable")};Blockly.isRightButton=function(a){return a.ctrlKey&&goog.userAgent.MAC?!0:2==a.button};
+Blockly.getSvgXY_=function(a,b){var c=0,d=0,e=1;if(goog.dom.contains(b.getCanvas(),a)||goog.dom.contains(b.getBubbleCanvas(),a))e=b.scale;do{var f=Blockly.getRelativeXY_(a);if(a==b.getCanvas()||a==b.getBubbleCanvas())e=1;c+=f.x*e;d+=f.y*e;a=a.parentNode}while(a&&a!=b.getParentSvg());return new goog.math.Coordinate(c,d)};
+Blockly.createSvgElement=function(a,b,c,d){a=document.createElementNS(Blockly.SVG_NS,a);for(var e in b)a.setAttribute(e,b[e]);document.body.runtimeStyle&&(a.runtimeStyle=a.currentStyle=a.style);c&&c.appendChild(a);return a};Blockly.setPageSelectable=function(a){a?Blockly.removeClass_(document.body,"blocklyNonSelectable"):Blockly.addClass_(document.body,"blocklyNonSelectable")};Blockly.isRightButton=function(a){return a.ctrlKey&&goog.userAgent.MAC?!0:2==a.button};
 Blockly.mouseToSvg=function(a,b){var c=b.createSVGPoint();c.x=a.clientX;c.y=a.clientY;var d=b.getScreenCTM(),d=d.inverse();return c.matrixTransform(d)};Blockly.shortestStringLength=function(a){if(!a.length)return 0;for(var b=a[0].length,c=1;c<a.length;c++)b=Math.min(b,a[c].length);return b};
-Blockly.commonWordPrefix=function(a,b){if(!a.length)return 0;if(1==a.length)return a[0].length;for(var c=0,d=b||Blockly.shortestStringLength(a),f=0;f<d;f++){for(var g=a[0][f],h=1;h<a.length;h++)if(g!=a[h][f])return c;" "==g&&(c=f+1)}for(h=1;h<a.length;h++)if((g=a[h][f])&&" "!=g)return c;return d};
-Blockly.commonWordSuffix=function(a,b){if(!a.length)return 0;if(1==a.length)return a[0].length;for(var c=0,d=b||Blockly.shortestStringLength(a),f=0;f<d;f++){for(var g=a[0].substr(-f-1,1),h=1;h<a.length;h++)if(g!=a[h].substr(-f-1,1))return c;" "==g&&(c=f+1)}for(h=1;h<a.length;h++)if((g=a[h].charAt(a[h].length-f-1))&&" "!=g)return c;return d};Blockly.isNumber=function(a){return!!a.match(/^\s*-?\d+(\.\d+)?\s*$/)};
-Blockly.tokenizeInterpolation=function(a){var b=[];a=a.split("");a.push("");for(var c=0,d=[],f=null,g=0;g<a.length;g++){var h=a[g];0==c?"%"==h?c=1:d.push(h):1==c?"%"==h?(d.push(h),c=0):"0"<=h&&"9">=h?(c=2,f=h,(h=d.join(""))&&b.push(h),d.length=0):(d.push("%",h),c=0):2==c&&("0"<=h&&"9">=h?f+=h:(b.push(parseInt(f,10)),g--,c=0))}(h=d.join(""))&&b.push(h);return b};Blockly.genUid=function(){for(var a=Blockly.genUid.soup_.length,b=[],c=0;20>c;c++)b[c]=Blockly.genUid.soup_.charAt(Math.random()*a);return b.join("")};
+Blockly.commonWordPrefix=function(a,b){if(!a.length)return 0;if(1==a.length)return a[0].length;for(var c=0,d=b||Blockly.shortestStringLength(a),e=0;e<d;e++){for(var f=a[0][e],g=1;g<a.length;g++)if(f!=a[g][e])return c;" "==f&&(c=e+1)}for(g=1;g<a.length;g++)if((f=a[g][e])&&" "!=f)return c;return d};
+Blockly.commonWordSuffix=function(a,b){if(!a.length)return 0;if(1==a.length)return a[0].length;for(var c=0,d=b||Blockly.shortestStringLength(a),e=0;e<d;e++){for(var f=a[0].substr(-e-1,1),g=1;g<a.length;g++)if(f!=a[g].substr(-e-1,1))return c;" "==f&&(c=e+1)}for(g=1;g<a.length;g++)if((f=a[g].charAt(a[g].length-e-1))&&" "!=f)return c;return d};Blockly.isNumber=function(a){return!!a.match(/^\s*-?\d+(\.\d+)?\s*$/)};
+Blockly.tokenizeInterpolation=function(a){var b=[];a=a.split("");a.push("");for(var c=0,d=[],e=null,f=0;f<a.length;f++){var g=a[f];0==c?"%"==g?c=1:d.push(g):1==c?"%"==g?(d.push(g),c=0):"0"<=g&&"9">=g?(c=2,e=g,(g=d.join(""))&&b.push(g),d.length=0):(d.push("%",g),c=0):2==c&&("0"<=g&&"9">=g?e+=g:(b.push(parseInt(e,10)),f--,c=0))}(g=d.join(""))&&b.push(g);return b};Blockly.genUid=function(){for(var a=Blockly.genUid.soup_.length,b=[],c=0;20>c;c++)b[c]=Blockly.genUid.soup_.charAt(Math.random()*a);return b.join("")};
 Blockly.genUid.soup_="!#%()*+,-./:;=?@[]^_`{|}~ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";var CLOSURE_DEFINES={"goog.DEBUG":!1};Blockly.mainWorkspace=null;Blockly.selected=null;Blockly.highlightedConnection_=null;Blockly.localConnection_=null;Blockly.clipboardXml_=null;Blockly.clipboardSource_=null;Blockly.dragMode_=Blockly.DRAG_NONE;Blockly.onTouchUpWrapper_=null;Blockly.hueToRgb=function(a){return goog.color.hsvToHex(a,Blockly.HSV_SATURATION,255*Blockly.HSV_VALUE)};Blockly.svgSize=function(a){return{width:a.cachedWidth_,height:a.cachedHeight_}};
 Blockly.svgResize=function(a){for(;a.options.parentWorkspace;)a=a.options.parentWorkspace;var b=a.getParentSvg(),c=b.parentNode;if(c){var d=c.offsetWidth,c=c.offsetHeight;b.cachedWidth_!=d&&(b.setAttribute("width",d+"px"),b.cachedWidth_=d);b.cachedHeight_!=c&&(b.setAttribute("height",c+"px"),b.cachedHeight_=c);a.resize()}};
 Blockly.onMouseUp_=function(a){a=Blockly.getMainWorkspace();Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN);a.isScrolling=!1;Blockly.setPageSelectable(!0);Blockly.onTouchUpWrapper_&&(Blockly.unbindEvent_(Blockly.onTouchUpWrapper_),Blockly.onTouchUpWrapper_=null);Blockly.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.onMouseMoveWrapper_),Blockly.onMouseMoveWrapper_=null)};
-Blockly.onMouseMove_=function(a){if(!(a.touches&&2<=a.touches.length)){var b=Blockly.getMainWorkspace();if(b.isScrolling){var c=a.clientX-b.startDragMouseX,d=a.clientY-b.startDragMouseY,f=b.startDragMetrics,g=b.startScrollX+c,h=b.startScrollY+d,g=Math.min(g,-f.contentLeft),h=Math.min(h,-f.contentTop),g=Math.max(g,f.viewWidth-f.contentLeft-f.contentWidth),h=Math.max(h,f.viewHeight-f.contentTop-f.contentHeight);b.scrollbar.set(-g-f.contentLeft,-h-f.contentTop);Math.sqrt(c*c+d*d)>Blockly.DRAG_RADIUS&&
+Blockly.onMouseMove_=function(a){if(!(a.touches&&2<=a.touches.length)){var b=Blockly.getMainWorkspace();if(b.isScrolling){var c=a.clientX-b.startDragMouseX,d=a.clientY-b.startDragMouseY,e=b.startDragMetrics,f=b.startScrollX+c,g=b.startScrollY+d,f=Math.min(f,-e.contentLeft),g=Math.min(g,-e.contentTop),f=Math.max(f,e.viewWidth-e.contentLeft-e.contentWidth),g=Math.max(g,e.viewHeight-e.contentTop-e.contentHeight);b.scrollbar.set(-f-e.contentLeft,-g-e.contentTop);Math.sqrt(c*c+d*d)>Blockly.DRAG_RADIUS&&
 Blockly.longStop_();a.stopPropagation()}}};
-Blockly.onKeyDown_=function(a){if(!Blockly.mainWorkspace.options.readOnly&&!Blockly.isTargetInput_(a)){var b=!1;if(27==a.keyCode)Blockly.hideChaff();else if(8==a.keyCode||46==a.keyCode)try{Blockly.selected&&Blockly.selected.isDeletable()&&(b=!0)}finally{a.preventDefault()}else if(a.altKey||a.ctrlKey||a.metaKey)Blockly.selected&&Blockly.selected.isDeletable()&&Blockly.selected.isMovable()&&(67==a.keyCode?(Blockly.hideChaff(),Blockly.copy_(Blockly.selected)):88==a.keyCode&&(Blockly.copy_(Blockly.selected),
-b=!0)),86==a.keyCode?Blockly.clipboardXml_&&Blockly.clipboardSource_.paste(Blockly.clipboardXml_):90==a.keyCode&&(Blockly.hideChaff(),Blockly.mainWorkspace.undo(a.shiftKey));b&&(Blockly.Events.setGroup(!0),Blockly.hideChaff(),Blockly.selected.dispose(Blockly.dragMode_!=Blockly.DRAG_FREE,!0),Blockly.highlightedConnection_&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null),Blockly.Events.setGroup(!1))}};
-Blockly.terminateDrag_=function(){Blockly.BlockSvg.terminateDrag_();Blockly.Flyout.terminateDrag_()};Blockly.longPid_=0;Blockly.longStart_=function(a,b){Blockly.longStop_();Blockly.longPid_=setTimeout(function(){a.button=2;b.onMouseDown_(a)},Blockly.LONGPRESS)};Blockly.longStop_=function(){Blockly.longPid_&&(clearTimeout(Blockly.longPid_),Blockly.longPid_=0)};
+Blockly.onKeyDown_=function(a){if(!Blockly.mainWorkspace.options.readOnly&&!Blockly.isTargetInput_(a)){var b=!1;if(27==a.keyCode)Blockly.hideChaff();else if(8==a.keyCode||46==a.keyCode)a.preventDefault(),Blockly.selected&&Blockly.selected.isDeletable()&&(b=!0);else if(a.altKey||a.ctrlKey||a.metaKey)Blockly.selected&&Blockly.selected.isDeletable()&&Blockly.selected.isMovable()&&(67==a.keyCode?(Blockly.hideChaff(),Blockly.copy_(Blockly.selected)):88==a.keyCode&&(Blockly.copy_(Blockly.selected),b=!0)),
+86==a.keyCode?Blockly.clipboardXml_&&Blockly.clipboardSource_.paste(Blockly.clipboardXml_):90==a.keyCode&&(Blockly.hideChaff(),Blockly.mainWorkspace.undo(a.shiftKey));b&&(Blockly.Events.setGroup(!0),Blockly.hideChaff(),Blockly.selected.dispose(Blockly.dragMode_!=Blockly.DRAG_FREE,!0),Blockly.highlightedConnection_&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null),Blockly.Events.setGroup(!1))}};Blockly.terminateDrag_=function(){Blockly.BlockSvg.terminateDrag_();Blockly.Flyout.terminateDrag_()};
+Blockly.longPid_=0;Blockly.longStart_=function(a,b){Blockly.longStop_();Blockly.longPid_=setTimeout(function(){a.button=2;b.onMouseDown_(a)},Blockly.LONGPRESS)};Blockly.longStop_=function(){Blockly.longPid_&&(clearTimeout(Blockly.longPid_),Blockly.longPid_=0)};
 Blockly.copy_=function(a){var b=Blockly.Xml.blockToDom(a);Blockly.dragMode_!=Blockly.DRAG_FREE&&Blockly.Xml.deleteNext(b);var c=a.getRelativeToSurfaceXY();b.setAttribute("x",a.RTL?-c.x:c.x);b.setAttribute("y",c.y);Blockly.clipboardXml_=b;Blockly.clipboardSource_=a.workspace};Blockly.duplicate_=function(a){var b=Blockly.clipboardXml_,c=Blockly.clipboardSource_;Blockly.copy_(a);a.workspace.paste(Blockly.clipboardXml_);Blockly.clipboardXml_=b;Blockly.clipboardSource_=c};
 Blockly.onContextMenu_=function(a){Blockly.isTargetInput_(a)||a.preventDefault()};Blockly.hideChaff=function(a){Blockly.Tooltip.hide();Blockly.WidgetDiv.hide();a||(a=Blockly.getMainWorkspace(),a.toolbox_&&a.toolbox_.flyout_&&a.toolbox_.flyout_.autoClose&&a.toolbox_.clearSelection())};
-Blockly.getMainWorkspaceMetrics_=function(){var a=Blockly.svgSize(this.getParentSvg());this.toolbox_&&(a.width-=this.toolbox_.width);var b=Blockly.Flyout.prototype.CORNER_RADIUS-1,c=a.width-b,d=a.height-b,f=this.getBlocksBoundingBox(),g=f.width*this.scale,h=f.height*this.scale,k=f.x*this.scale,l=f.y*this.scale;this.scrollbar?(b=Math.min(k-c/2,k+g-c),c=Math.max(k+g+c/2,k+c),g=Math.min(l-d/2,l+h-d),d=Math.max(l+h+d/2,l+d)):(b=f.x,c=b+f.width,g=f.y,d=g+f.height);f=0;!this.RTL&&this.toolbox_&&(f=this.toolbox_.width);
-return{viewHeight:a.height,viewWidth:a.width,contentHeight:d-g,contentWidth:c-b,viewTop:-this.scrollY,viewLeft:-this.scrollX,contentTop:g,contentLeft:b,absoluteTop:0,absoluteLeft:f}};
+Blockly.getMainWorkspaceMetrics_=function(){var a=Blockly.svgSize(this.getParentSvg());this.toolbox_&&(a.width-=this.toolbox_.width);var b=Blockly.Flyout.prototype.CORNER_RADIUS-1,c=a.width-b,d=a.height-b,e=this.getBlocksBoundingBox(),f=e.width*this.scale,g=e.height*this.scale,h=e.x*this.scale,k=e.y*this.scale;this.scrollbar?(b=Math.min(h-c/2,h+f-c),c=Math.max(h+f+c/2,h+c),f=Math.min(k-d/2,k+g-d),d=Math.max(k+g+d/2,k+d)):(b=e.x,c=b+e.width,f=e.y,d=f+e.height);e=0;!this.RTL&&this.toolbox_&&(e=this.toolbox_.width);
+return{viewHeight:a.height,viewWidth:a.width,contentHeight:d-f,contentWidth:c-b,viewTop:-this.scrollY,viewLeft:-this.scrollX,contentTop:f,contentLeft:b,absoluteTop:0,absoluteLeft:e}};
 Blockly.setMainWorkspaceMetrics_=function(a){if(!this.scrollbar)throw"Attempt to set main workspace scroll without scrollbars.";var b=this.getMetrics();goog.isNumber(a.x)&&(this.scrollX=-b.contentWidth*a.x-b.contentLeft);goog.isNumber(a.y)&&(this.scrollY=-b.contentHeight*a.y-b.contentTop);a=this.scrollX+b.absoluteLeft;b=this.scrollY+b.absoluteTop;this.translate(a,b);this.options.gridPattern&&(this.options.gridPattern.setAttribute("x",a),this.options.gridPattern.setAttribute("y",b),goog.userAgent.IE&&
 this.updateGridPattern_())};Blockly.addChangeListener=function(a){console.warn("Deprecated call to Blockly.addChangeListener, use workspace.addChangeListener instead.");return Blockly.getMainWorkspace().addChangeListener(a)};Blockly.getMainWorkspace=function(){return Blockly.mainWorkspace};goog.global.Blockly||(goog.global.Blockly={});goog.global.Blockly.getMainWorkspace=Blockly.getMainWorkspace;goog.global.Blockly.addChangeListener=Blockly.addChangeListener;
\ No newline at end of file
diff --git a/blockly_uncompressed.js b/blockly_uncompressed.js
index 805944061..4d1dc517b 100644
--- a/blockly_uncompressed.js
+++ b/blockly_uncompressed.js
@@ -43,14 +43,14 @@ goog.addDependency("../../../" + dir + "/core/block_render_svg.js", ['Blockly.Bl
 goog.addDependency("../../../" + dir + "/core/block_svg.js", ['Blockly.BlockSvg'], ['Blockly.Block', 'Blockly.ContextMenu', 'goog.Timer', 'goog.asserts', 'goog.dom', 'goog.math.Coordinate', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/blockly.js", ['Blockly'], ['Blockly.BlockSvg.render', 'Blockly.Events', 'Blockly.FieldAngle', 'Blockly.FieldCheckbox', 'Blockly.FieldColour', 'Blockly.FieldDropdown', 'Blockly.FieldImage', 'Blockly.FieldTextInput', 'Blockly.FieldVariable', 'Blockly.Generator', 'Blockly.Msg', 'Blockly.Procedures', 'Blockly.Toolbox', 'Blockly.WidgetDiv', 'Blockly.WorkspaceSvg', 'Blockly.constants', 'Blockly.inject', 'Blockly.utils', 'goog.color', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/blocks.js", ['Blockly.Blocks'], []);
-goog.addDependency("../../../" + dir + "/core/bubble.js", ['Blockly.Bubble'], ['Blockly.Workspace', 'goog.dom', 'goog.math', 'goog.userAgent']);
+goog.addDependency("../../../" + dir + "/core/bubble.js", ['Blockly.Bubble'], ['Blockly.Workspace', 'goog.dom', 'goog.math', 'goog.math.Coordinate', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/comment.js", ['Blockly.Comment'], ['Blockly.Bubble', 'Blockly.Icon', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/connection.js", ['Blockly.Connection'], ['goog.asserts', 'goog.dom']);
 goog.addDependency("../../../" + dir + "/core/connection_db.js", ['Blockly.ConnectionDB'], ['Blockly.Connection']);
 goog.addDependency("../../../" + dir + "/core/constants.js", ['Blockly.constants'], []);
 goog.addDependency("../../../" + dir + "/core/contextmenu.js", ['Blockly.ContextMenu'], ['goog.dom', 'goog.events', 'goog.style', 'goog.ui.Menu', 'goog.ui.MenuItem']);
 goog.addDependency("../../../" + dir + "/core/css.js", ['Blockly.Css'], []);
-goog.addDependency("../../../" + dir + "/core/events.js", ['Blockly.Events'], []);
+goog.addDependency("../../../" + dir + "/core/events.js", ['Blockly.Events'], ['goog.math.Coordinate']);
 goog.addDependency("../../../" + dir + "/core/field.js", ['Blockly.Field'], ['goog.asserts', 'goog.dom', 'goog.math.Size', 'goog.style', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/field_angle.js", ['Blockly.FieldAngle'], ['Blockly.FieldTextInput', 'goog.math', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/field_checkbox.js", ['Blockly.FieldCheckbox'], ['Blockly.Field']);
@@ -61,9 +61,9 @@ goog.addDependency("../../../" + dir + "/core/field_image.js", ['Blockly.FieldIm
 goog.addDependency("../../../" + dir + "/core/field_label.js", ['Blockly.FieldLabel'], ['Blockly.Field', 'Blockly.Tooltip', 'goog.dom', 'goog.math.Size']);
 goog.addDependency("../../../" + dir + "/core/field_textinput.js", ['Blockly.FieldTextInput'], ['Blockly.Field', 'Blockly.Msg', 'goog.asserts', 'goog.dom', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/field_variable.js", ['Blockly.FieldVariable'], ['Blockly.FieldDropdown', 'Blockly.Msg', 'Blockly.Variables', 'goog.string']);
-goog.addDependency("../../../" + dir + "/core/flyout.js", ['Blockly.Flyout'], ['Blockly.Block', 'Blockly.Comment', 'Blockly.WorkspaceSvg', 'goog.dom', 'goog.events', 'goog.math.Rect', 'goog.userAgent']);
+goog.addDependency("../../../" + dir + "/core/flyout.js", ['Blockly.Flyout'], ['Blockly.Block', 'Blockly.Comment', 'Blockly.Events', 'Blockly.WorkspaceSvg', 'goog.dom', 'goog.events', 'goog.math.Rect', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/generator.js", ['Blockly.Generator'], ['Blockly.Block', 'goog.asserts']);
-goog.addDependency("../../../" + dir + "/core/icon.js", ['Blockly.Icon'], ['goog.dom']);
+goog.addDependency("../../../" + dir + "/core/icon.js", ['Blockly.Icon'], ['goog.dom', 'goog.math.Coordinate']);
 goog.addDependency("../../../" + dir + "/core/inject.js", ['Blockly.inject'], ['Blockly.Css', 'Blockly.Options', 'Blockly.WorkspaceSvg', 'goog.dom', 'goog.ui.Component', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/input.js", ['Blockly.Input'], ['Blockly.Connection', 'Blockly.FieldLabel', 'goog.asserts']);
 goog.addDependency("../../../" + dir + "/core/msg.js", ['Blockly.Msg'], []);
diff --git a/core/flyout.js b/core/flyout.js
index d4930be8b..a1bb12523 100644
--- a/core/flyout.js
+++ b/core/flyout.js
@@ -28,7 +28,7 @@ goog.provide('Blockly.Flyout');
 
 goog.require('Blockly.Block');
 goog.require('Blockly.Comment');
-goog.require('Blockly.Events.Ui');
+goog.require('Blockly.Events');
 goog.require('Blockly.WorkspaceSvg');
 goog.require('goog.dom');
 goog.require('goog.events');

From 3df41730390f422aecb44153a172bd5c826ad8cf Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Wed, 20 Apr 2016 17:45:40 -0700
Subject: [PATCH 10/12] Fix infinity in hidden scrollbars.  Issue #340.

---
 core/scrollbar.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/scrollbar.js b/core/scrollbar.js
index 42d053cc0..7ac53d06d 100644
--- a/core/scrollbar.js
+++ b/core/scrollbar.js
@@ -516,7 +516,7 @@ Blockly.Scrollbar.prototype.onScroll_ = function() {
   var barLength = parseFloat(
       this.svgBackground_.getAttribute(this.horizontal_ ? 'width' : 'height'));
   var ratio = knobValue / barLength;
-  if (isNaN(ratio)) {
+  if (isNaN(ratio) || !barLength) {
     ratio = 0;
   }
   var xyRatio = {};

From fd7d4a2befd751b1d914b55acb4f0790e70c998d Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Thu, 21 Apr 2016 04:52:43 -0700
Subject: [PATCH 11/12] Make scrollCenter public, remove zoomReset.

---
 core/workspace_svg.js | 17 ++---------------
 core/zoom_controls.js | 11 ++++++++---
 2 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/core/workspace_svg.js b/core/workspace_svg.js
index 4b9570ce3..2d562fd2e 100644
--- a/core/workspace_svg.js
+++ b/core/workspace_svg.js
@@ -1038,26 +1038,13 @@ Blockly.WorkspaceSvg.prototype.zoomToFit = function() {
   var ratioX = workspaceWidth / blocksWidth;
   var ratioY = workspaceHeight / blocksHeight;
   this.setScale(Math.min(ratioX, ratioY));
-  this.scrollCenter_();
-};
-
-/**
- * Reset zooming and dragging.
- * @param {!Event} e Mouse down event.
- */
-Blockly.WorkspaceSvg.prototype.zoomReset = function(e) {
-  this.setScale(1);
-  this.scrollCenter_();
-  // This event has been handled.  Don't start a workspace drag.
-  e.stopPropagation();
-  e.preventDefault();
+  this.scrollCenter();
 };
 
 /**
  * Center the workspace.
- * @private
  */
-Blockly.WorkspaceSvg.prototype.scrollCenter_ = function() {
+Blockly.WorkspaceSvg.prototype.scrollCenter = function() {
   if (!this.scrollbar) {
     // Can't center a non-scrolling workspace.
     return;
diff --git a/core/zoom_controls.js b/core/zoom_controls.js
index f745c9c21..d50110829 100644
--- a/core/zoom_controls.js
+++ b/core/zoom_controls.js
@@ -162,16 +162,21 @@ Blockly.ZoomControls.prototype.createDom = function() {
       workspace.options.pathToMedia + Blockly.SPRITE.url);
 
   // Attach event listeners.
-  Blockly.bindEvent_(zoomresetSvg, 'mousedown', workspace, workspace.zoomReset);
+  Blockly.bindEvent_(zoomresetSvg, 'mousedown', null, function(e) {
+    workspace.setScale(1);
+    workspace.scrollCenter();
+    e.stopPropagation();  // Don't start a workspace scroll.
+    e.preventDefault();  // Stop double-clicking from selecting text.
+  });
   Blockly.bindEvent_(zoominSvg, 'mousedown', null, function(e) {
     workspace.zoomCenter(1);
     e.stopPropagation();  // Don't start a workspace scroll.
-    e.preventDefault();
+    e.preventDefault();  // Stop double-clicking from selecting text.
   });
   Blockly.bindEvent_(zoomoutSvg, 'mousedown', null, function(e) {
     workspace.zoomCenter(-1);
     e.stopPropagation();  // Don't start a workspace scroll.
-    e.preventDefault();
+    e.preventDefault();  // Stop double-clicking from selecting text.
   });
 
   return this.svgGroup_;

From 6c0bf9f9662615cded68f1ae587042f20934694a Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Thu, 21 Apr 2016 06:05:25 -0700
Subject: [PATCH 12/12] Routine recompile.

---
 blockly_compressed.js    | 69 +++++++++++++++++++++-------------------
 core/block_render_svg.js |  8 ++---
 core/flyout.js           | 11 +++----
 core/scrollbar.js        |  6 ++--
 4 files changed, 48 insertions(+), 46 deletions(-)

diff --git a/blockly_compressed.js b/blockly_compressed.js
index 9f68ad4c7..1582fdd20 100644
--- a/blockly_compressed.js
+++ b/blockly_compressed.js
@@ -968,10 +968,11 @@ Blockly.ScrollbarPair.prototype.getRatio_=function(a,b){var c=a/b;return isNaN(c
 Blockly.Scrollbar=function(a,b,c){this.workspace_=a;this.pair_=c||!1;this.horizontal_=b;this.createDom_();b?(this.svgBackground_.setAttribute("height",Blockly.Scrollbar.scrollbarThickness),this.svgKnob_.setAttribute("height",Blockly.Scrollbar.scrollbarThickness-5),this.svgKnob_.setAttribute("y",2.5)):(this.svgBackground_.setAttribute("width",Blockly.Scrollbar.scrollbarThickness),this.svgKnob_.setAttribute("width",Blockly.Scrollbar.scrollbarThickness-5),this.svgKnob_.setAttribute("x",2.5));this.onMouseDownBarWrapper_=
 Blockly.bindEvent_(this.svgBackground_,"mousedown",this,this.onMouseDownBar_);this.onMouseDownKnobWrapper_=Blockly.bindEvent_(this.svgKnob_,"mousedown",this,this.onMouseDownKnob_)};Blockly.Scrollbar.scrollbarThickness=15;goog.events.BrowserFeature.TOUCH_ENABLED&&(Blockly.Scrollbar.scrollbarThickness=25);
 Blockly.Scrollbar.prototype.dispose=function(){this.onMouseUpKnob_();Blockly.unbindEvent_(this.onMouseDownBarWrapper_);this.onMouseDownBarWrapper_=null;Blockly.unbindEvent_(this.onMouseDownKnobWrapper_);this.onMouseDownKnobWrapper_=null;goog.dom.removeNode(this.svgGroup_);this.workspace_=this.svgKnob_=this.svgBackground_=this.svgGroup_=null};
-Blockly.Scrollbar.prototype.resize=function(a){if(!a&&(a=this.workspace_.getMetrics(),!a))return;if(this.horizontal_){var b=a.viewWidth-1;this.pair_?b-=Blockly.Scrollbar.scrollbarThickness:this.setVisible(b<a.contentWidth);this.ratio_=b/a.contentWidth;if(-Infinity===this.ratio_||Infinity===this.ratio_||isNaN(this.ratio_))this.ratio_=0;var c=a.viewWidth*this.ratio_,d=(a.viewLeft-a.contentLeft)*this.ratio_;this.svgKnob_.setAttribute("width",Math.max(0,c));this.xCoordinate=a.absoluteLeft+.5;this.pair_&&
-this.workspace_.RTL&&(this.xCoordinate+=a.absoluteLeft+Blockly.Scrollbar.scrollbarThickness);this.yCoordinate=a.absoluteTop+a.viewHeight-Blockly.Scrollbar.scrollbarThickness-.5;this.svgGroup_.setAttribute("transform","translate("+this.xCoordinate+","+this.yCoordinate+")");this.svgBackground_.setAttribute("width",Math.max(0,b));this.svgKnob_.setAttribute("x",this.constrainKnob_(d))}else{b=a.viewHeight-1;this.pair_?b-=Blockly.Scrollbar.scrollbarThickness:this.setVisible(b<a.contentHeight);this.ratio_=
-b/a.contentHeight;if(-Infinity===this.ratio_||Infinity===this.ratio_||isNaN(this.ratio_))this.ratio_=0;c=a.viewHeight*this.ratio_;d=(a.viewTop-a.contentTop)*this.ratio_;this.svgKnob_.setAttribute("height",Math.max(0,c));this.xCoordinate=a.absoluteLeft+.5;this.workspace_.RTL||(this.xCoordinate+=a.viewWidth-Blockly.Scrollbar.scrollbarThickness-1);this.yCoordinate=a.absoluteTop+.5;this.svgGroup_.setAttribute("transform","translate("+this.xCoordinate+","+this.yCoordinate+")");this.svgBackground_.setAttribute("height",
-Math.max(0,b));this.svgKnob_.setAttribute("y",this.constrainKnob_(d))}this.onScroll_()};
+Blockly.Scrollbar.prototype.resize=function(a){if(!a&&(a=this.workspace_.getMetrics(),!a))return;this.horizontal_?this.resizeHorizontal_(a):this.resizeVertical_(a);this.onScroll_()};
+Blockly.Scrollbar.prototype.resizeHorizontal_=function(a){var b=a.viewWidth-1;this.pair_?b-=Blockly.Scrollbar.scrollbarThickness:this.setVisible(b<a.contentWidth);this.ratio_=b/a.contentWidth;if(-Infinity===this.ratio_||Infinity===this.ratio_||isNaN(this.ratio_))this.ratio_=0;var c=(a.viewLeft-a.contentLeft)*this.ratio_;this.svgKnob_.setAttribute("width",Math.max(0,a.viewWidth*this.ratio_));this.xCoordinate=a.absoluteLeft+.5;this.pair_&&this.workspace_.RTL&&(this.xCoordinate+=a.absoluteLeft+Blockly.Scrollbar.scrollbarThickness);
+this.yCoordinate=a.absoluteTop+a.viewHeight-Blockly.Scrollbar.scrollbarThickness-.5;this.svgGroup_.setAttribute("transform","translate("+this.xCoordinate+","+this.yCoordinate+")");this.svgBackground_.setAttribute("width",Math.max(0,b));this.svgKnob_.setAttribute("x",this.constrainKnob_(c))};
+Blockly.Scrollbar.prototype.resizeVertical_=function(a){var b=a.viewHeight-1;this.pair_?b-=Blockly.Scrollbar.scrollbarThickness:this.setVisible(b<a.contentHeight);this.ratio_=b/a.contentHeight;if(-Infinity===this.ratio_||Infinity===this.ratio_||isNaN(this.ratio_))this.ratio_=0;var c=(a.viewTop-a.contentTop)*this.ratio_;this.svgKnob_.setAttribute("height",Math.max(0,a.viewHeight*this.ratio_));this.xCoordinate=a.absoluteLeft+.5;this.workspace_.RTL||(this.xCoordinate+=a.viewWidth-Blockly.Scrollbar.scrollbarThickness-
+1);this.yCoordinate=a.absoluteTop+.5;this.svgGroup_.setAttribute("transform","translate("+this.xCoordinate+","+this.yCoordinate+")");this.svgBackground_.setAttribute("height",Math.max(0,b));this.svgKnob_.setAttribute("y",this.constrainKnob_(c))};
 Blockly.Scrollbar.prototype.createDom_=function(){this.svgGroup_=Blockly.createSvgElement("g",{"class":"blocklyScrollbar"+(this.horizontal_?"Horizontal":"Vertical")},null);this.svgBackground_=Blockly.createSvgElement("rect",{"class":"blocklyScrollbarBackground"},this.svgGroup_);var a=Math.floor((Blockly.Scrollbar.scrollbarThickness-5)/2);this.svgKnob_=Blockly.createSvgElement("rect",{"class":"blocklyScrollbarKnob",rx:a,ry:a},this.svgGroup_);Blockly.Scrollbar.insertAfter_(this.svgGroup_,this.workspace_.getBubbleCanvas())};
 Blockly.Scrollbar.prototype.isVisible=function(){return"none"!=this.svgGroup_.getAttribute("display")};Blockly.Scrollbar.prototype.setVisible=function(a){if(a!=this.isVisible()){if(this.pair_)throw"Unable to toggle visibility of paired scrollbars.";a?this.svgGroup_.setAttribute("display","block"):(this.workspace_.setMetrics({x:0,y:0}),this.svgGroup_.setAttribute("display","none"))}};
 Blockly.Scrollbar.prototype.onMouseDownBar_=function(a){this.onMouseUpKnob_();if(!Blockly.isRightButton(a)){var b=Blockly.mouseToSvg(a,this.workspace_.getParentSvg()),b=this.horizontal_?b.x:b.y,c=Blockly.getSvgXY_(this.svgKnob_,this.workspace_),c=this.horizontal_?c.x:c.y,d=parseFloat(this.svgKnob_.getAttribute(this.horizontal_?"width":"height")),e=parseFloat(this.svgKnob_.getAttribute(this.horizontal_?"x":"y")),f=.95*d;b<=c?e-=f:b>=c+d&&(e+=f);this.svgKnob_.setAttribute(this.horizontal_?"x":"y",this.constrainKnob_(e));
@@ -980,7 +981,7 @@ Blockly.Scrollbar.prototype.onMouseDownKnob_=function(a){this.onMouseUpKnob_();B
 Blockly.Scrollbar.prototype.onMouseMoveKnob_=function(a){this.svgKnob_.setAttribute(this.horizontal_?"x":"y",this.constrainKnob_(this.startDragKnob+((this.horizontal_?a.clientX:a.clientY)-this.startDragMouse)));this.onScroll_()};
 Blockly.Scrollbar.prototype.onMouseUpKnob_=function(){Blockly.setPageSelectable(!0);Blockly.hideChaff(!0);Blockly.Scrollbar.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Scrollbar.onMouseUpWrapper_),Blockly.Scrollbar.onMouseUpWrapper_=null);Blockly.Scrollbar.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.Scrollbar.onMouseMoveWrapper_),Blockly.Scrollbar.onMouseMoveWrapper_=null)};
 Blockly.Scrollbar.prototype.constrainKnob_=function(a){if(0>=a||isNaN(a))a=0;else{var b=this.horizontal_?"width":"height",c=parseFloat(this.svgBackground_.getAttribute(b)),b=parseFloat(this.svgKnob_.getAttribute(b));a=Math.min(a,c-b)}return a};
-Blockly.Scrollbar.prototype.onScroll_=function(){var a=parseFloat(this.svgKnob_.getAttribute(this.horizontal_?"x":"y")),b=parseFloat(this.svgBackground_.getAttribute(this.horizontal_?"width":"height")),a=a/b;isNaN(a)&&(a=0);b={};this.horizontal_?b.x=a:b.y=a;this.workspace_.setMetrics(b)};Blockly.Scrollbar.prototype.set=function(a){this.svgKnob_.setAttribute(this.horizontal_?"x":"y",a*this.ratio_);this.onScroll_()};
+Blockly.Scrollbar.prototype.onScroll_=function(){var a=parseFloat(this.svgKnob_.getAttribute(this.horizontal_?"x":"y")),b=parseFloat(this.svgBackground_.getAttribute(this.horizontal_?"width":"height")),a=a/b;if(isNaN(a)||!b)a=0;b={};this.horizontal_?b.x=a:b.y=a;this.workspace_.setMetrics(b)};Blockly.Scrollbar.prototype.set=function(a){a=this.constrainKnob_(a*this.ratio_);this.svgKnob_.setAttribute(this.horizontal_?"x":"y",a);this.onScroll_()};
 Blockly.Scrollbar.insertAfter_=function(a,b){var c=b.nextSibling,d=b.parentNode;if(!d)throw"Reference node has no parent.";c?d.insertBefore(a,c):d.appendChild(a)};Blockly.Trashcan=function(a){this.workspace_=a};Blockly.Trashcan.prototype.WIDTH_=47;Blockly.Trashcan.prototype.BODY_HEIGHT_=44;Blockly.Trashcan.prototype.LID_HEIGHT_=16;Blockly.Trashcan.prototype.MARGIN_BOTTOM_=20;Blockly.Trashcan.prototype.MARGIN_SIDE_=20;Blockly.Trashcan.prototype.MARGIN_HOTSPOT_=10;Blockly.Trashcan.prototype.isOpen=!1;Blockly.Trashcan.prototype.svgGroup_=null;Blockly.Trashcan.prototype.svgLid_=null;Blockly.Trashcan.prototype.lidTask_=0;Blockly.Trashcan.prototype.lidOpen_=0;
 Blockly.Trashcan.prototype.left_=0;Blockly.Trashcan.prototype.top_=0;
 Blockly.Trashcan.prototype.createDom=function(){this.svgGroup_=Blockly.createSvgElement("g",{"class":"blocklyTrash"},null);var a=String(Math.random()).substring(2),b=Blockly.createSvgElement("clipPath",{id:"blocklyTrashBodyClipPath"+a},this.svgGroup_);Blockly.createSvgElement("rect",{width:this.WIDTH_,height:this.BODY_HEIGHT_,y:this.LID_HEIGHT_},b);Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,y:-32,"clip-path":"url(#blocklyTrashBodyClipPath"+a+")"},this.svgGroup_).setAttributeNS("http://www.w3.org/1999/xlink",
@@ -1011,8 +1012,9 @@ goog.global.Blockly.Xml||(goog.global.Blockly.Xml={});goog.global.Blockly.Xml.do
 Blockly.ZoomControls=function(a){this.workspace_=a};Blockly.ZoomControls.prototype.WIDTH_=32;Blockly.ZoomControls.prototype.HEIGHT_=110;Blockly.ZoomControls.prototype.MARGIN_BOTTOM_=20;Blockly.ZoomControls.prototype.MARGIN_SIDE_=20;Blockly.ZoomControls.prototype.svgGroup_=null;Blockly.ZoomControls.prototype.left_=0;Blockly.ZoomControls.prototype.top_=0;
 Blockly.ZoomControls.prototype.createDom=function(){var a=this.workspace_;this.svgGroup_=Blockly.createSvgElement("g",{"class":"blocklyZoom"},null);var b=String(Math.random()).substring(2),c=Blockly.createSvgElement("clipPath",{id:"blocklyZoomoutClipPath"+b},this.svgGroup_);Blockly.createSvgElement("rect",{width:32,height:32,y:77},c);var d=Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,x:-64,y:-15,"clip-path":"url(#blocklyZoomoutClipPath"+b+")"},this.svgGroup_);
 d.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+Blockly.SPRITE.url);c=Blockly.createSvgElement("clipPath",{id:"blocklyZoominClipPath"+b},this.svgGroup_);Blockly.createSvgElement("rect",{width:32,height:32,y:43},c);var e=Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,x:-32,y:-49,"clip-path":"url(#blocklyZoominClipPath"+b+")"},this.svgGroup_);e.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+
-Blockly.SPRITE.url);c=Blockly.createSvgElement("clipPath",{id:"blocklyZoomresetClipPath"+b},this.svgGroup_);Blockly.createSvgElement("rect",{width:32,height:32},c);b=Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,y:-92,"clip-path":"url(#blocklyZoomresetClipPath"+b+")"},this.svgGroup_);b.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEvent_(b,"mousedown",a,a.zoomReset);Blockly.bindEvent_(e,
-"mousedown",null,function(b){a.zoomCenter(1);b.stopPropagation();b.preventDefault()});Blockly.bindEvent_(d,"mousedown",null,function(b){a.zoomCenter(-1);b.stopPropagation();b.preventDefault()});return this.svgGroup_};Blockly.ZoomControls.prototype.init=function(a){this.bottom_=this.MARGIN_BOTTOM_+a;return this.bottom_+this.HEIGHT_};Blockly.ZoomControls.prototype.dispose=function(){this.svgGroup_&&(goog.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.workspace_=null};
+Blockly.SPRITE.url);c=Blockly.createSvgElement("clipPath",{id:"blocklyZoomresetClipPath"+b},this.svgGroup_);Blockly.createSvgElement("rect",{width:32,height:32},c);b=Blockly.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,y:-92,"clip-path":"url(#blocklyZoomresetClipPath"+b+")"},this.svgGroup_);b.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",a.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEvent_(b,"mousedown",null,function(b){a.setScale(1);a.scrollCenter();
+b.stopPropagation();b.preventDefault()});Blockly.bindEvent_(e,"mousedown",null,function(b){a.zoomCenter(1);b.stopPropagation();b.preventDefault()});Blockly.bindEvent_(d,"mousedown",null,function(b){a.zoomCenter(-1);b.stopPropagation();b.preventDefault()});return this.svgGroup_};Blockly.ZoomControls.prototype.init=function(a){this.bottom_=this.MARGIN_BOTTOM_+a;return this.bottom_+this.HEIGHT_};
+Blockly.ZoomControls.prototype.dispose=function(){this.svgGroup_&&(goog.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.workspace_=null};
 Blockly.ZoomControls.prototype.position=function(){var a=this.workspace_.getMetrics();a&&(this.left_=this.workspace_.RTL?this.MARGIN_SIDE_+Blockly.Scrollbar.scrollbarThickness:a.viewWidth+a.absoluteLeft-this.WIDTH_-this.MARGIN_SIDE_-Blockly.Scrollbar.scrollbarThickness,this.top_=a.viewHeight+a.absoluteTop-this.HEIGHT_-this.bottom_,this.svgGroup_.setAttribute("transform","translate("+this.left_+","+this.top_+")"))};
 // Copyright 2014 Google Inc.  Apache License 2.0
 Blockly.WorkspaceSvg=function(a){Blockly.WorkspaceSvg.superClass_.constructor.call(this,a);this.getMetrics=a.getMetrics;this.setMetrics=a.setMetrics;Blockly.ConnectionDB.init(this);this.SOUNDS_=Object.create(null)};goog.inherits(Blockly.WorkspaceSvg,Blockly.Workspace);Blockly.WorkspaceSvg.prototype.rendered=!0;Blockly.WorkspaceSvg.prototype.isFlyout=!1;Blockly.WorkspaceSvg.prototype.isScrolling=!1;Blockly.WorkspaceSvg.prototype.scrollX=0;Blockly.WorkspaceSvg.prototype.scrollY=0;
@@ -1047,8 +1049,8 @@ Blockly.WorkspaceSvg.prototype.updateToolbox=function(a){if(a=Blockly.Options.pa
 a;this.flyout_.show(a.childNodes)}}else if(this.options.languageTree)throw"Can't nullify an existing toolbox.";};Blockly.WorkspaceSvg.prototype.markFocused=function(){this.options.parentWorkspace?this.options.parentWorkspace.markFocused():Blockly.mainWorkspace=this};
 Blockly.WorkspaceSvg.prototype.zoom=function(a,b,c){var d=this.options.zoomOptions.scaleSpeed,e=this.getMetrics(),f=this.getParentSvg().createSVGPoint();f.x=a;f.y=b;f=f.matrixTransform(this.getCanvas().getCTM().inverse());a=f.x;b=f.y;f=this.getCanvas();d=1==c?d:1/d;c=this.scale*d;c>this.options.zoomOptions.maxScale?d=this.options.zoomOptions.maxScale/this.scale:c<this.options.zoomOptions.minScale&&(d=this.options.zoomOptions.minScale/this.scale);this.scale!=c&&(this.scrollbar&&(a=f.getCTM().translate(a*
 (1-d),b*(1-d)).scale(d),this.scrollX=a.e-e.absoluteLeft,this.scrollY=a.f-e.absoluteTop),this.setScale(c))};Blockly.WorkspaceSvg.prototype.zoomCenter=function(a){var b=this.getMetrics();this.zoom(b.viewWidth/2,b.viewHeight/2,a)};
-Blockly.WorkspaceSvg.prototype.zoomToFit=function(){var a=this.getMetrics(),b=this.getBlocksBoundingBox(),c=b.width,b=b.height;if(c){var d=a.viewWidth,e=a.viewHeight;this.flyout_&&(d-=this.flyout_.width_);this.scrollbar||(c+=a.contentLeft,b+=a.contentTop);this.setScale(Math.min(d/c,e/b));this.scrollCenter_()}};Blockly.WorkspaceSvg.prototype.zoomReset=function(a){this.setScale(1);this.scrollCenter_();a.stopPropagation();a.preventDefault()};
-Blockly.WorkspaceSvg.prototype.scrollCenter_=function(){if(this.scrollbar){var a=this.getMetrics(),b=(a.contentWidth-a.viewWidth)/2;this.flyout_&&(b-=this.flyout_.width_/2);this.scrollbar.set(b,(a.contentHeight-a.viewHeight)/2)}};
+Blockly.WorkspaceSvg.prototype.zoomToFit=function(){var a=this.getMetrics(),b=this.getBlocksBoundingBox(),c=b.width,b=b.height;if(c){var d=a.viewWidth,e=a.viewHeight;this.flyout_&&(d-=this.flyout_.width_);this.scrollbar||(c+=a.contentLeft,b+=a.contentTop);this.setScale(Math.min(d/c,e/b));this.scrollCenter()}};
+Blockly.WorkspaceSvg.prototype.scrollCenter=function(){if(this.scrollbar){var a=this.getMetrics(),b=(a.contentWidth-a.viewWidth)/2;this.flyout_&&(b-=this.flyout_.width_/2);this.scrollbar.set(b,(a.contentHeight-a.viewHeight)/2)}};
 Blockly.WorkspaceSvg.prototype.setScale=function(a){this.options.zoomOptions.maxScale&&a>this.options.zoomOptions.maxScale?a=this.options.zoomOptions.maxScale:this.options.zoomOptions.minScale&&a<this.options.zoomOptions.minScale&&(a=this.options.zoomOptions.minScale);this.scale=a;this.updateGridPattern_();this.scrollbar?this.scrollbar.resize():this.translate(this.scrollX,this.scrollY);Blockly.hideChaff(!1);this.flyout_&&this.flyout_.reflow()};
 Blockly.WorkspaceSvg.prototype.updateGridPattern_=function(){if(this.options.gridPattern){var a=this.options.gridOptions.spacing*this.scale||100;this.options.gridPattern.setAttribute("width",a);this.options.gridPattern.setAttribute("height",a);var a=Math.floor(this.options.gridOptions.spacing/2)+.5,b=a-this.options.gridOptions.length/2,c=a+this.options.gridOptions.length/2,d=this.options.gridPattern.firstChild,e=d&&d.nextSibling,a=a*this.scale,b=b*this.scale,c=c*this.scale;d&&(d.setAttribute("stroke-width",
 this.scale),d.setAttribute("x1",b),d.setAttribute("y1",a),d.setAttribute("x2",c),d.setAttribute("y2",a));e&&(e.setAttribute("stroke-width",this.scale),e.setAttribute("x1",a),e.setAttribute("y1",b),e.setAttribute("x2",a),e.setAttribute("y2",c))}};Blockly.WorkspaceSvg.prototype.setVisible=Blockly.WorkspaceSvg.prototype.setVisible;Blockly.Mutator=function(a){Blockly.Mutator.superClass_.constructor.call(this,null);this.quarkNames_=a};goog.inherits(Blockly.Mutator,Blockly.Icon);Blockly.Mutator.prototype.workspaceWidth_=0;Blockly.Mutator.prototype.workspaceHeight_=0;
@@ -1159,13 +1161,14 @@ e.setWarningText(a,c))},100)}else{this.isInFlyout&&(a=null);d=this.getSurroundPa
 Blockly.BlockSvg.prototype.removeSelect=function(){Blockly.removeClass_(this.svgGroup_,"blocklySelected")};Blockly.BlockSvg.prototype.addDragging=function(){Blockly.addClass_(this.svgGroup_,"blocklyDragging")};Blockly.BlockSvg.prototype.removeDragging=function(){Blockly.removeClass_(this.svgGroup_,"blocklyDragging")};Blockly.BlockSvg.prototype.setColour=function(a){Blockly.BlockSvg.superClass_.setColour.call(this,a);this.rendered&&this.updateColour()};
 Blockly.BlockSvg.prototype.setPreviousStatement=function(a,b){Blockly.BlockSvg.superClass_.setPreviousStatement.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_())};Blockly.BlockSvg.prototype.setNextStatement=function(a,b){Blockly.BlockSvg.superClass_.setNextStatement.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_())};Blockly.BlockSvg.prototype.setOutput=function(a,b){Blockly.BlockSvg.superClass_.setOutput.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_())};
 Blockly.BlockSvg.prototype.setInputsInline=function(a){Blockly.BlockSvg.superClass_.setInputsInline.call(this,a);this.rendered&&(this.render(),this.bumpNeighbours_())};Blockly.BlockSvg.prototype.removeInput=function(a,b){Blockly.BlockSvg.superClass_.removeInput.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_())};Blockly.BlockSvg.prototype.moveNumberedInputBefore=function(a,b){Blockly.BlockSvg.superClass_.moveNumberedInputBefore.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_())};
-Blockly.BlockSvg.prototype.appendInput_=function(a,b){var c=Blockly.BlockSvg.superClass_.appendInput_.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_());return c};Blockly.BlockSvg.prototype.getConnections_=function(a){var b=[];if(a||this.rendered)if(this.outputConnection&&b.push(this.outputConnection),this.previousConnection&&b.push(this.previousConnection),this.nextConnection&&b.push(this.nextConnection),a||!this.collapsed_){a=0;for(var c;c=this.inputList[a];a++)c.connection&&b.push(c.connection)}return b};Blockly.BlockSvg.render={};Blockly.BlockSvg.SEP_SPACE_X=10;Blockly.BlockSvg.SEP_SPACE_Y=10;Blockly.BlockSvg.INLINE_PADDING_Y=5;Blockly.BlockSvg.MIN_BLOCK_Y=25;Blockly.BlockSvg.TAB_HEIGHT=20;Blockly.BlockSvg.TAB_WIDTH=8;Blockly.BlockSvg.NOTCH_WIDTH=30;Blockly.BlockSvg.CORNER_RADIUS=8;Blockly.BlockSvg.START_HAT=!1;Blockly.BlockSvg.START_HAT_PATH="c 30,-15 70,-15 100,0";Blockly.BlockSvg.START_HAT_HIGHLIGHT_LTR="c 17.8,-9.2 45.3,-14.9 75,-8.7 M 100.5,0.5";Blockly.BlockSvg.START_HAT_HIGHLIGHT_RTL="m 25,-8.7 c 29.7,-6.2 57.2,-0.5 75,8.7";
-Blockly.BlockSvg.DISTANCE_45_INSIDE=(1-Math.SQRT1_2)*(Blockly.BlockSvg.CORNER_RADIUS-.5)+.5;Blockly.BlockSvg.DISTANCE_45_OUTSIDE=(1-Math.SQRT1_2)*(Blockly.BlockSvg.CORNER_RADIUS+.5)-.5;Blockly.BlockSvg.NOTCH_PATH_LEFT="l 6,4 3,0 6,-4";Blockly.BlockSvg.NOTCH_PATH_LEFT_HIGHLIGHT="l 6,4 3,0 6,-4";Blockly.BlockSvg.NOTCH_PATH_RIGHT="l -6,4 -3,0 -6,-4";Blockly.BlockSvg.JAGGED_TEETH="l 8,0 0,4 8,4 -16,8 8,4";Blockly.BlockSvg.JAGGED_TEETH_HEIGHT=20;Blockly.BlockSvg.JAGGED_TEETH_WIDTH=15;
-Blockly.BlockSvg.TAB_PATH_DOWN="v 5 c 0,10 -"+Blockly.BlockSvg.TAB_WIDTH+",-8 -"+Blockly.BlockSvg.TAB_WIDTH+",7.5 s "+Blockly.BlockSvg.TAB_WIDTH+",-2.5 "+Blockly.BlockSvg.TAB_WIDTH+",7.5";Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL="v 6.5 m -"+.97*Blockly.BlockSvg.TAB_WIDTH+",3 q -"+.05*Blockly.BlockSvg.TAB_WIDTH+",10 "+.3*Blockly.BlockSvg.TAB_WIDTH+",9.5 m "+.67*Blockly.BlockSvg.TAB_WIDTH+",-1.9 v 1.4";Blockly.BlockSvg.TOP_LEFT_CORNER_START="m 0,"+Blockly.BlockSvg.CORNER_RADIUS;
-Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_RTL="m "+Blockly.BlockSvg.DISTANCE_45_INSIDE+","+Blockly.BlockSvg.DISTANCE_45_INSIDE;Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_LTR="m 0.5,"+(Blockly.BlockSvg.CORNER_RADIUS-.5);Blockly.BlockSvg.TOP_LEFT_CORNER="A "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,1 "+Blockly.BlockSvg.CORNER_RADIUS+",0";
-Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT="A "+(Blockly.BlockSvg.CORNER_RADIUS-.5)+","+(Blockly.BlockSvg.CORNER_RADIUS-.5)+" 0 0,1 "+Blockly.BlockSvg.CORNER_RADIUS+",0.5";Blockly.BlockSvg.INNER_TOP_LEFT_CORNER=Blockly.BlockSvg.NOTCH_PATH_RIGHT+" h -"+(Blockly.BlockSvg.NOTCH_WIDTH-15-Blockly.BlockSvg.CORNER_RADIUS)+" a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 -"+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS;
-Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER="a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS;Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL="a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 "+(-Blockly.BlockSvg.DISTANCE_45_OUTSIDE-.5)+","+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE);
-Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL="a "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5);Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR="a "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)+","+(Blockly.BlockSvg.DISTANCE_45_OUTSIDE+.5);
+Blockly.BlockSvg.prototype.appendInput_=function(a,b){var c=Blockly.BlockSvg.superClass_.appendInput_.call(this,a,b);this.rendered&&(this.render(),this.bumpNeighbours_());return c};Blockly.BlockSvg.prototype.getConnections_=function(a){var b=[];if(a||this.rendered)if(this.outputConnection&&b.push(this.outputConnection),this.previousConnection&&b.push(this.previousConnection),this.nextConnection&&b.push(this.nextConnection),a||!this.collapsed_){a=0;for(var c;c=this.inputList[a];a++)c.connection&&b.push(c.connection)}return b};Blockly.BlockSvg.render={};Blockly.BlockSvg.SEP_SPACE_X=10;Blockly.BlockSvg.SEP_SPACE_Y=10;Blockly.BlockSvg.INLINE_PADDING_Y=5;Blockly.BlockSvg.MIN_BLOCK_Y=25;Blockly.BlockSvg.TAB_HEIGHT=20;Blockly.BlockSvg.TAB_WIDTH=8;Blockly.BlockSvg.NOTCH_WIDTH=30;Blockly.BlockSvg.CORNER_RADIUS=8;Blockly.BlockSvg.START_HAT=!1;Blockly.BlockSvg.START_HAT_HEIGHT=15;Blockly.BlockSvg.START_HAT_PATH="c 30,-"+Blockly.BlockSvg.START_HAT_HEIGHT+" 70,-"+Blockly.BlockSvg.START_HAT_HEIGHT+" 100,0";
+Blockly.BlockSvg.START_HAT_HIGHLIGHT_LTR="c 17.8,-9.2 45.3,-14.9 75,-8.7 M 100.5,0.5";Blockly.BlockSvg.START_HAT_HIGHLIGHT_RTL="m 25,-8.7 c 29.7,-6.2 57.2,-0.5 75,8.7";Blockly.BlockSvg.DISTANCE_45_INSIDE=(1-Math.SQRT1_2)*(Blockly.BlockSvg.CORNER_RADIUS-.5)+.5;Blockly.BlockSvg.DISTANCE_45_OUTSIDE=(1-Math.SQRT1_2)*(Blockly.BlockSvg.CORNER_RADIUS+.5)-.5;Blockly.BlockSvg.NOTCH_PATH_LEFT="l 6,4 3,0 6,-4";Blockly.BlockSvg.NOTCH_PATH_LEFT_HIGHLIGHT="l 6,4 3,0 6,-4";Blockly.BlockSvg.NOTCH_PATH_RIGHT="l -6,4 -3,0 -6,-4";
+Blockly.BlockSvg.JAGGED_TEETH="l 8,0 0,4 8,4 -16,8 8,4";Blockly.BlockSvg.JAGGED_TEETH_HEIGHT=20;Blockly.BlockSvg.JAGGED_TEETH_WIDTH=15;Blockly.BlockSvg.TAB_PATH_DOWN="v 5 c 0,10 -"+Blockly.BlockSvg.TAB_WIDTH+",-8 -"+Blockly.BlockSvg.TAB_WIDTH+",7.5 s "+Blockly.BlockSvg.TAB_WIDTH+",-2.5 "+Blockly.BlockSvg.TAB_WIDTH+",7.5";
+Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL="v 6.5 m -"+.97*Blockly.BlockSvg.TAB_WIDTH+",3 q -"+.05*Blockly.BlockSvg.TAB_WIDTH+",10 "+.3*Blockly.BlockSvg.TAB_WIDTH+",9.5 m "+.67*Blockly.BlockSvg.TAB_WIDTH+",-1.9 v 1.4";Blockly.BlockSvg.TOP_LEFT_CORNER_START="m 0,"+Blockly.BlockSvg.CORNER_RADIUS;Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_RTL="m "+Blockly.BlockSvg.DISTANCE_45_INSIDE+","+Blockly.BlockSvg.DISTANCE_45_INSIDE;
+Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_LTR="m 0.5,"+(Blockly.BlockSvg.CORNER_RADIUS-.5);Blockly.BlockSvg.TOP_LEFT_CORNER="A "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,1 "+Blockly.BlockSvg.CORNER_RADIUS+",0";Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT="A "+(Blockly.BlockSvg.CORNER_RADIUS-.5)+","+(Blockly.BlockSvg.CORNER_RADIUS-.5)+" 0 0,1 "+Blockly.BlockSvg.CORNER_RADIUS+",0.5";
+Blockly.BlockSvg.INNER_TOP_LEFT_CORNER=Blockly.BlockSvg.NOTCH_PATH_RIGHT+" h -"+(Blockly.BlockSvg.NOTCH_WIDTH-15-Blockly.BlockSvg.CORNER_RADIUS)+" a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 -"+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS;Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER="a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS;
+Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL="a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 "+(-Blockly.BlockSvg.DISTANCE_45_OUTSIDE-.5)+","+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE);Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL="a "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5);
+Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR="a "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)+","+(Blockly.BlockSvg.DISTANCE_45_OUTSIDE+.5);
 Blockly.BlockSvg.prototype.render=function(a){Blockly.Field.startCache();this.rendered=!0;var b=Blockly.BlockSvg.SEP_SPACE_X;this.RTL&&(b=-b);for(var c=this.getIcons(),d=0;d<c.length;d++)b=c[d].renderIcon(b);b+=this.RTL?Blockly.BlockSvg.SEP_SPACE_X:-Blockly.BlockSvg.SEP_SPACE_X;c=this.renderCompute_(b);this.renderDraw_(b,c);!1!==a&&((a=this.getParent())?a.render(!0):Blockly.fireUiEvent(window,"resize"));Blockly.Field.stopCache()};
 Blockly.BlockSvg.prototype.renderFields_=function(a,b,c){c+=Blockly.BlockSvg.INLINE_PADDING_Y;this.RTL&&(b=-b);for(var d=0,e;e=a[d];d++){var f=e.getSvgRoot();f&&(this.RTL?(b-=e.renderSep+e.renderWidth,f.setAttribute("transform","translate("+b+","+c+")"),e.renderWidth&&(b-=Blockly.BlockSvg.SEP_SPACE_X)):(f.setAttribute("transform","translate("+(b+e.renderSep)+","+c+")"),e.renderWidth&&(b+=e.renderSep+e.renderWidth+Blockly.BlockSvg.SEP_SPACE_X)))}return this.RTL?-b:b};
 Blockly.BlockSvg.prototype.renderCompute_=function(a){var b=this.inputList,c=[];c.rightEdge=a+2*Blockly.BlockSvg.SEP_SPACE_X;if(this.previousConnection||this.nextConnection)c.rightEdge=Math.max(c.rightEdge,Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.SEP_SPACE_X);for(var d=0,e=0,f=!1,g=!1,h=!1,k=void 0,l=this.getInputsInline()&&!this.isCollapsed(),q=0,m;m=b[q];q++)if(m.isVisible()){var p;l&&k&&k!=Blockly.NEXT_STATEMENT&&m.type!=Blockly.NEXT_STATEMENT?p=c[c.length-1]:(k=m.type,p=[],p.type=l&&m.type!=
@@ -1173,9 +1176,9 @@ Blockly.NEXT_STATEMENT?Blockly.BlockSvg.INLINE:m.type,p.height=0,c.push(p));p.pu
 m.renderHeight--:m.renderHeight--;p.height=Math.max(p.height,m.renderHeight);m.fieldWidth=0;1==c.length&&(m.fieldWidth+=this.RTL?-a:a);for(var n=!1,r=0,t;t=m.fieldRow[r];r++){0!=r&&(m.fieldWidth+=Blockly.BlockSvg.SEP_SPACE_X);var u=t.getSize();t.renderWidth=u.width;t.renderSep=n&&t.EDITABLE?Blockly.BlockSvg.SEP_SPACE_X:0;m.fieldWidth+=t.renderWidth+t.renderSep;p.height=Math.max(p.height,u.height);n=t.EDITABLE}p.type!=Blockly.BlockSvg.INLINE&&(p.type==Blockly.NEXT_STATEMENT?(g=!0,e=Math.max(e,m.fieldWidth)):
 (p.type==Blockly.INPUT_VALUE?f=!0:p.type==Blockly.DUMMY_INPUT&&(h=!0),d=Math.max(d,m.fieldWidth)))}for(a=0;p=c[a];a++)if(p.thicker=!1,p.type==Blockly.BlockSvg.INLINE)for(b=0;m=p[b];b++)if(m.type==Blockly.INPUT_VALUE){p.height+=2*Blockly.BlockSvg.INLINE_PADDING_Y;p.thicker=!0;break}c.statementEdge=2*Blockly.BlockSvg.SEP_SPACE_X+e;g&&(c.rightEdge=Math.max(c.rightEdge,c.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH));f?c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X+Blockly.BlockSvg.TAB_WIDTH):
 h&&(c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X));c.hasValue=f;c.hasStatement=g;c.hasDummy=h;return c};
-Blockly.BlockSvg.prototype.renderDraw_=function(a,b){this.startHat_=!1;if(this.outputConnection)this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!0;else{this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!1;if(this.previousConnection){var c=this.previousConnection.targetBlock();c&&c.getNextBlock()==this&&(this.squareTopLeftCorner_=!0)}else Blockly.BlockSvg.START_HAT&&(this.startHat_=this.squareTopLeftCorner_=!0,b.rightEdge=Math.max(b.rightEdge,100));this.getNextBlock()&&(this.squareBottomLeftCorner_=
-!0)}var d=this.getRelativeToSurfaceXY(),e=[],f=[],c=[],g=[];this.renderDrawTop_(e,c,d,b.rightEdge);var h=this.renderDrawRight_(e,c,f,g,d,b,a);this.renderDrawBottom_(e,c,d,h);this.renderDrawLeft_(e,c,d,h);d=e.join(" ")+"\n"+f.join(" ");this.svgPath_.setAttribute("d",d);this.svgPathDark_.setAttribute("d",d);d=c.join(" ")+"\n"+g.join(" ");this.svgPathLight_.setAttribute("d",d);this.RTL&&(this.svgPath_.setAttribute("transform","scale(-1 1)"),this.svgPathLight_.setAttribute("transform","scale(-1 1)"),
-this.svgPathDark_.setAttribute("transform","translate(1,1) scale(-1 1)"))};
+Blockly.BlockSvg.prototype.renderDraw_=function(a,b){this.startHat_=!1;this.height=0;if(this.outputConnection)this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!0;else{this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!1;if(this.previousConnection){var c=this.previousConnection.targetBlock();c&&c.getNextBlock()==this&&(this.squareTopLeftCorner_=!0)}else Blockly.BlockSvg.START_HAT&&(this.startHat_=this.squareTopLeftCorner_=!0,this.height+=Blockly.BlockSvg.START_HAT_HEIGHT,b.rightEdge=Math.max(b.rightEdge,
+100));this.getNextBlock()&&(this.squareBottomLeftCorner_=!0)}var d=this.getRelativeToSurfaceXY(),e=[],f=[],c=[],g=[];this.renderDrawTop_(e,c,d,b.rightEdge);var h=this.renderDrawRight_(e,c,f,g,d,b,a);this.renderDrawBottom_(e,c,d,h);this.renderDrawLeft_(e,c,d,h);d=e.join(" ")+"\n"+f.join(" ");this.svgPath_.setAttribute("d",d);this.svgPathDark_.setAttribute("d",d);d=c.join(" ")+"\n"+g.join(" ");this.svgPathLight_.setAttribute("d",d);this.RTL&&(this.svgPath_.setAttribute("transform","scale(-1 1)"),this.svgPathLight_.setAttribute("transform",
+"scale(-1 1)"),this.svgPathDark_.setAttribute("transform","translate(1,1) scale(-1 1)"))};
 Blockly.BlockSvg.prototype.renderDrawTop_=function(a,b,c,d){this.squareTopLeftCorner_?(a.push("m 0,0"),b.push("m 0.5,0.5"),this.startHat_&&(a.push(Blockly.BlockSvg.START_HAT_PATH),b.push(this.RTL?Blockly.BlockSvg.START_HAT_HIGHLIGHT_RTL:Blockly.BlockSvg.START_HAT_HIGHLIGHT_LTR))):(a.push(Blockly.BlockSvg.TOP_LEFT_CORNER_START),b.push(this.RTL?Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_RTL:Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_LTR),a.push(Blockly.BlockSvg.TOP_LEFT_CORNER),b.push(Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT));
 this.previousConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH-15),b.push("H",Blockly.BlockSvg.NOTCH_WIDTH-15),a.push(Blockly.BlockSvg.NOTCH_PATH_LEFT),b.push(Blockly.BlockSvg.NOTCH_PATH_LEFT_HIGHLIGHT),this.previousConnection.moveTo(c.x+(this.RTL?-Blockly.BlockSvg.NOTCH_WIDTH:Blockly.BlockSvg.NOTCH_WIDTH),c.y));a.push("H",d);b.push("H",d-.5);this.width=d};
 Blockly.BlockSvg.prototype.renderDrawRight_=function(a,b,c,d,e,f,g){for(var h,k=0,l,q,m=0,p;p=f[m];m++){h=Blockly.BlockSvg.SEP_SPACE_X;0==m&&(h+=this.RTL?-g:g);b.push("M",f.rightEdge-.5+","+(k+.5));if(this.isCollapsed()){var n=p[0];l=k;this.renderFields_(n.fieldRow,h,l);a.push(Blockly.BlockSvg.JAGGED_TEETH);b.push("h 8");n=p.height-Blockly.BlockSvg.JAGGED_TEETH_HEIGHT;a.push("v",n);this.RTL&&(b.push("v 3.9 l 7.2,3.4 m -14.5,8.9 l 7.3,3.5"),b.push("v",n-.7));this.width+=Blockly.BlockSvg.JAGGED_TEETH_WIDTH}else if(p.type==
@@ -1188,7 +1191,7 @@ f.rightEdge);this.width=Math.max(this.width,h);a.push("H",h);b.push("H",h-.5);a.
 2*Blockly.BlockSvg.SEP_SPACE_X,n.align==Blockly.ALIGN_RIGHT?h+=r:n.align==Blockly.ALIGN_CENTRE&&(h+=r/2)),this.renderFields_(n.fieldRow,h,l),h=f.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH,a.push("H",h),a.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER),a.push("v",p.height-2*Blockly.BlockSvg.CORNER_RADIUS),a.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER),a.push("H",f.rightEdge),this.RTL?(b.push("M",h-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(k+Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),
 b.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL),b.push("v",p.height-2*Blockly.BlockSvg.CORNER_RADIUS),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL)):(b.push("M",h-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(k+p.height-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR)),b.push("H",f.rightEdge-.5),l=e.x+(this.RTL?-h:h+1),q=e.y+k+1,n.connection.moveTo(l,q),n.connection.isConnected()&&(n.connection.tighten_(),
 this.width=Math.max(this.width,f.statementEdge+n.connection.targetBlock().getHeightWidth().width)),m==f.length-1||f[m+1].type==Blockly.NEXT_STATEMENT)&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),this.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),k+=Blockly.BlockSvg.SEP_SPACE_Y);k+=p.height}f.length||(k=Blockly.BlockSvg.MIN_BLOCK_Y,a.push("V",k),this.RTL&&b.push("V",k-1));return k};
-Blockly.BlockSvg.prototype.renderDrawBottom_=function(a,b,c,d){this.height=d+1;this.nextConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH+(this.RTL?.5:-.5)+" "+Blockly.BlockSvg.NOTCH_PATH_RIGHT),this.nextConnection.moveTo(this.RTL?c.x-Blockly.BlockSvg.NOTCH_WIDTH:c.x+Blockly.BlockSvg.NOTCH_WIDTH,c.y+d+1),this.nextConnection.isConnected()&&this.nextConnection.tighten_(),this.height+=4);this.squareBottomLeftCorner_?(a.push("H 0"),this.RTL||b.push("M","0.5,"+(d-.5))):(a.push("H",Blockly.BlockSvg.CORNER_RADIUS),
+Blockly.BlockSvg.prototype.renderDrawBottom_=function(a,b,c,d){this.height+=d+1;this.nextConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH+(this.RTL?.5:-.5)+" "+Blockly.BlockSvg.NOTCH_PATH_RIGHT),this.nextConnection.moveTo(this.RTL?c.x-Blockly.BlockSvg.NOTCH_WIDTH:c.x+Blockly.BlockSvg.NOTCH_WIDTH,c.y+d+1),this.nextConnection.isConnected()&&this.nextConnection.tighten_(),this.height+=4);this.squareBottomLeftCorner_?(a.push("H 0"),this.RTL||b.push("M","0.5,"+(d-.5))):(a.push("H",Blockly.BlockSvg.CORNER_RADIUS),
 a.push("a",Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,1 -"+Blockly.BlockSvg.CORNER_RADIUS+",-"+Blockly.BlockSvg.CORNER_RADIUS),this.RTL||(b.push("M",Blockly.BlockSvg.DISTANCE_45_INSIDE+","+(d-Blockly.BlockSvg.DISTANCE_45_INSIDE)),b.push("A",Blockly.BlockSvg.CORNER_RADIUS-.5+","+(Blockly.BlockSvg.CORNER_RADIUS-.5)+" 0 0,1 0.5,"+(d-Blockly.BlockSvg.CORNER_RADIUS))))};
 Blockly.BlockSvg.prototype.renderDrawLeft_=function(a,b,c,d){this.outputConnection?(this.outputConnection.moveTo(c.x,c.y),a.push("V",Blockly.BlockSvg.TAB_HEIGHT),a.push("c 0,-10 -"+Blockly.BlockSvg.TAB_WIDTH+",8 -"+Blockly.BlockSvg.TAB_WIDTH+",-7.5 s "+Blockly.BlockSvg.TAB_WIDTH+",2.5 "+Blockly.BlockSvg.TAB_WIDTH+",-7.5"),this.RTL?(b.push("M",-.25*Blockly.BlockSvg.TAB_WIDTH+",8.4"),b.push("l",-.45*Blockly.BlockSvg.TAB_WIDTH+",-2.1")):(b.push("V",Blockly.BlockSvg.TAB_HEIGHT-1.5),b.push("m",-.92*Blockly.BlockSvg.TAB_WIDTH+
 ",-0.5 q "+-.19*Blockly.BlockSvg.TAB_WIDTH+",-5.5 0,-11"),b.push("m",.92*Blockly.BlockSvg.TAB_WIDTH+",1 V 0.5 H 1")),this.width+=Blockly.BlockSvg.TAB_WIDTH):this.RTL||(this.squareTopLeftCorner_?b.push("V",.5):b.push("V",Blockly.BlockSvg.CORNER_RADIUS));a.push("z")};Blockly.Events={};Blockly.Events.group_="";Blockly.Events.recordUndo=!0;Blockly.Events.disabled_=0;Blockly.Events.CREATE="create";Blockly.Events.DELETE="delete";Blockly.Events.CHANGE="change";Blockly.Events.MOVE="move";Blockly.Events.UI="ui";Blockly.Events.FIRE_QUEUE_=[];Blockly.Events.fire=function(a){Blockly.Events.isEnabled()&&(Blockly.Events.FIRE_QUEUE_.length||setTimeout(Blockly.Events.fireNow_,0),Blockly.Events.FIRE_QUEUE_.push(a))};
@@ -1286,24 +1289,26 @@ this,this.onMouseDown_))};
 Blockly.Flyout.prototype.dispose=function(){this.hide();Blockly.unbindEvent_(this.eventWrappers_);this.filterWrapper_&&(this.targetWorkspace_.removeChangeListener(this.filterWrapper_),this.filterWrapper_=null);this.scrollbar_&&(this.scrollbar_.dispose(),this.scrollbar_=null);this.workspace_&&(this.workspace_.targetWorkspace=null,this.workspace_.dispose(),this.workspace_=null);this.svgGroup_&&(goog.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.targetWorkspace_=this.svgBackground_=null};
 Blockly.Flyout.prototype.getMetrics_=function(){if(!this.isVisible())return null;var a=this.height_-2*this.SCROLLBAR_PADDING,b=this.width_;try{var c=this.workspace_.getCanvas().getBBox()}catch(d){c={height:0,y:0}}return{viewHeight:a,viewWidth:b,contentHeight:(c.height+c.y)*this.workspace_.scale,viewTop:-this.workspace_.scrollY,contentTop:0,absoluteTop:this.SCROLLBAR_PADDING,absoluteLeft:0}};
 Blockly.Flyout.prototype.setMetrics_=function(a){var b=this.getMetrics_();b&&(goog.isNumber(a.y)&&(this.workspace_.scrollY=-b.contentHeight*a.y-b.contentTop),this.workspace_.translate(0,this.workspace_.scrollY+b.absoluteTop))};
-Blockly.Flyout.prototype.position=function(){if(this.isVisible()){var a=this.targetWorkspace_.getMetrics();if(a){var b=this.width_-this.CORNER_RADIUS;this.RTL&&(b*=-1);var c=["M "+(this.RTL?this.width_:0)+",0"];c.push("h",b);c.push("a",this.CORNER_RADIUS,this.CORNER_RADIUS,0,0,this.RTL?0:1,this.RTL?-this.CORNER_RADIUS:this.CORNER_RADIUS,this.CORNER_RADIUS);c.push("v",Math.max(0,a.viewHeight-2*this.CORNER_RADIUS));c.push("a",this.CORNER_RADIUS,this.CORNER_RADIUS,0,0,this.RTL?0:1,this.RTL?this.CORNER_RADIUS:
--this.CORNER_RADIUS,this.CORNER_RADIUS);c.push("h",-b);c.push("z");this.svgBackground_.setAttribute("d",c.join(" "));b=a.absoluteLeft;this.RTL&&(b+=a.viewWidth,b-=this.width_);this.svgGroup_.setAttribute("transform","translate("+b+","+a.absoluteTop+")");this.height_=a.viewHeight;this.scrollbar_&&this.scrollbar_.resize()}}};Blockly.Flyout.prototype.scrollToStart=function(){this.scrollbar_.set(0)};
-Blockly.Flyout.prototype.wheel_=function(a){var b=a.deltaY;if(b){goog.userAgent.GECKO&&(b*=10);var c=this.getMetrics_(),b=c.viewTop+b,b=Math.min(b,c.contentHeight-c.viewHeight),b=Math.max(b,0);this.scrollbar_.set(b);a.preventDefault();a.stopPropagation()}};Blockly.Flyout.prototype.isVisible=function(){return this.svgGroup_&&"block"==this.svgGroup_.style.display};
+Blockly.Flyout.prototype.position=function(){if(this.isVisible()){var a=this.targetWorkspace_.getMetrics();if(a){var b=this.width_-this.CORNER_RADIUS;this.RTL&&(b*=-1);this.setBackgroundPath_(b,a.viewHeight);b=a.absoluteLeft;this.RTL&&(b+=a.viewWidth,b-=this.width_);this.svgGroup_.setAttribute("transform","translate("+b+","+a.absoluteTop+")");this.height_=a.viewHeight;this.scrollbar_&&this.scrollbar_.resize()}}};
+Blockly.Flyout.prototype.setBackgroundPath_=function(a,b){var c=["M "+(this.RTL?this.width_:0)+",0"];c.push("h",a);c.push("a",this.CORNER_RADIUS,this.CORNER_RADIUS,0,0,this.RTL?0:1,this.RTL?-this.CORNER_RADIUS:this.CORNER_RADIUS,this.CORNER_RADIUS);c.push("v",Math.max(0,b-2*this.CORNER_RADIUS));c.push("a",this.CORNER_RADIUS,this.CORNER_RADIUS,0,0,this.RTL?0:1,this.RTL?this.CORNER_RADIUS:-this.CORNER_RADIUS,this.CORNER_RADIUS);c.push("h",-a);c.push("z");this.svgBackground_.setAttribute("d",c.join(" "))};
+Blockly.Flyout.prototype.scrollToStart=function(){this.scrollbar_.set(0)};Blockly.Flyout.prototype.wheel_=function(a){var b=a.deltaY;if(b){goog.userAgent.GECKO&&(b*=10);var c=this.getMetrics_(),b=c.viewTop+b,b=Math.min(b,c.contentHeight-c.viewHeight),b=Math.max(b,0);this.scrollbar_.set(b);a.preventDefault();a.stopPropagation()}};Blockly.Flyout.prototype.isVisible=function(){return this.svgGroup_&&"block"==this.svgGroup_.style.display};
 Blockly.Flyout.prototype.hide=function(){if(this.isVisible()){this.svgGroup_.style.display="none";for(var a=0,b;b=this.listeners_[a];a++)Blockly.unbindEvent_(b);this.listeners_.length=0;this.reflowWrapper_&&(this.workspace_.removeChangeListener(this.reflowWrapper_),this.reflowWrapper_=null)}};
-Blockly.Flyout.prototype.show=function(a){this.hide();for(var b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++)d.workspace==this.workspace_&&d.dispose(!1,!1);for(var c=0,e;e=this.buttons_[c];c++)goog.dom.removeNode(e);this.buttons_.length=0;a==Blockly.Variables.NAME_TYPE?a=Blockly.Variables.flyoutCategory(this.workspace_.targetWorkspace):a==Blockly.Procedures.NAME_TYPE&&(a=Blockly.Procedures.flyoutCategory(this.workspace_.targetWorkspace));var f=this.CORNER_RADIUS;this.svgGroup_.style.display=
-"block";for(var b=[],g=[],c=this.permanentlyDisabled_.length=0;e=a[c];c++)e.tagName&&"BLOCK"==e.tagName.toUpperCase()&&(d=Blockly.Xml.domToBlock(e,this.workspace_),d.disabled&&this.permanentlyDisabled_.push(d),b.push(d),d=parseInt(e.getAttribute("gap"),10),g.push(isNaN(d)?3*f:d));a=f;for(c=0;d=b[c];c++){e=d.getDescendants();for(var h=0,k;k=e[h];h++)k.isInFlyout=!0;d.render();h=d.getSvgRoot();e=d.getHeightWidth();d.moveBy(this.RTL?0:f/this.workspace_.scale+Blockly.BlockSvg.TAB_WIDTH,a);a+=e.height+
-g[c];e=Blockly.createSvgElement("rect",{"fill-opacity":0},null);e.tooltip=d;Blockly.Tooltip.bindMouseEvents(e);this.workspace_.getCanvas().insertBefore(e,d.getSvgRoot());d.flyoutRect_=e;this.buttons_[c]=e;this.autoClose?(this.listeners_.push(Blockly.bindEvent_(h,"mousedown",null,this.createBlockFunc_(d))),this.listeners_.push(Blockly.bindEvent_(e,"mousedown",null,this.createBlockFunc_(d)))):(this.listeners_.push(Blockly.bindEvent_(h,"mousedown",null,this.blockMouseDown_(d))),this.listeners_.push(Blockly.bindEvent_(e,
-"mousedown",null,this.blockMouseDown_(d))));this.listeners_.push(Blockly.bindEvent_(h,"mouseover",d,d.addSelect));this.listeners_.push(Blockly.bindEvent_(h,"mouseout",d,d.removeSelect));this.listeners_.push(Blockly.bindEvent_(e,"mouseover",d,d.addSelect));this.listeners_.push(Blockly.bindEvent_(e,"mouseout",d,d.removeSelect))}this.listeners_.push(Blockly.bindEvent_(this.svgBackground_,"mouseover",this,function(a){a=this.workspace_.getTopBlocks(!1);for(var b=0,c;c=a[b];b++)c.removeSelect()}));this.width_=
-0;this.reflow();this.filterForCapacity_();Blockly.fireUiEventNow(window,"resize");this.reflowWrapper_=this.reflow.bind(this);this.workspace_.addChangeListener(this.reflowWrapper_)};
+Blockly.Flyout.prototype.show=function(a){this.hide();this.clearOldBlocks_();a==Blockly.Variables.NAME_TYPE?a=Blockly.Variables.flyoutCategory(this.workspace_.targetWorkspace):a==Blockly.Procedures.NAME_TYPE&&(a=Blockly.Procedures.flyoutCategory(this.workspace_.targetWorkspace));var b=this.CORNER_RADIUS;this.svgGroup_.style.display="block";for(var c=[],d=[],e=this.permanentlyDisabled_.length=0,f;f=a[e];e++)if(f.tagName&&"BLOCK"==f.tagName.toUpperCase()){var g=Blockly.Xml.domToBlock(f,this.workspace_);
+g.disabled&&this.permanentlyDisabled_.push(g);c.push(g);f=parseInt(f.getAttribute("gap"),10);d.push(isNaN(f)?3*b:f)}this.layoutBlocks_(c,d,b);this.listeners_.push(Blockly.bindEvent_(this.svgBackground_,"mouseover",this,function(a){a=this.workspace_.getTopBlocks(!1);for(var b=0,c;c=a[b];b++)c.removeSelect()}));this.width_=0;this.reflow();this.filterForCapacity_();Blockly.fireUiEventNow(window,"resize");this.reflowWrapper_=this.reflow.bind(this);this.workspace_.addChangeListener(this.reflowWrapper_)};
+Blockly.Flyout.prototype.layoutBlocks_=function(a,b,c){for(var d=c,e=0,f;f=a[e];e++){for(var g=f.getDescendants(),h=0,k;k=g[h];h++)k.isInFlyout=!0;f.render();g=f.getSvgRoot();h=f.getHeightWidth();f.moveBy(this.RTL?0:c/this.workspace_.scale+Blockly.BlockSvg.TAB_WIDTH,d);d+=h.height+b[e];h=Blockly.createSvgElement("rect",{"fill-opacity":0},null);h.tooltip=f;Blockly.Tooltip.bindMouseEvents(h);this.workspace_.getCanvas().insertBefore(h,f.getSvgRoot());f.flyoutRect_=h;this.buttons_[e]=h;this.addBlockListeners_(g,
+f,h)}};Blockly.Flyout.prototype.clearOldBlocks_=function(){for(var a=this.workspace_.getTopBlocks(!1),b=0,c;c=a[b];b++)c.workspace==this.workspace_&&c.dispose(!1,!1);for(a=0;b=this.buttons_[a];a++)goog.dom.removeNode(b);this.buttons_.length=0};
+Blockly.Flyout.prototype.addBlockListeners_=function(a,b,c){this.autoClose?(this.listeners_.push(Blockly.bindEvent_(a,"mousedown",null,this.createBlockFunc_(b))),this.listeners_.push(Blockly.bindEvent_(c,"mousedown",null,this.createBlockFunc_(b)))):(this.listeners_.push(Blockly.bindEvent_(a,"mousedown",null,this.blockMouseDown_(b))),this.listeners_.push(Blockly.bindEvent_(c,"mousedown",null,this.blockMouseDown_(b))));this.listeners_.push(Blockly.bindEvent_(a,"mouseover",b,b.addSelect));this.listeners_.push(Blockly.bindEvent_(a,
+"mouseout",b,b.removeSelect));this.listeners_.push(Blockly.bindEvent_(c,"mouseover",b,b.addSelect));this.listeners_.push(Blockly.bindEvent_(c,"mouseout",b,b.removeSelect))};
 Blockly.Flyout.prototype.reflow=function(){this.workspace_.scale=this.targetWorkspace_.scale;for(var a=0,b=this.CORNER_RADIUS,c=this.workspace_.getTopBlocks(!1),d=0,e;e=c[d];d++){var f=e.getHeightWidth().width;e.outputConnection&&(f-=Blockly.BlockSvg.TAB_WIDTH);a=Math.max(a,f)}a+=Blockly.BlockSvg.TAB_WIDTH;a*=this.workspace_.scale;a+=1.5*b+Blockly.Scrollbar.scrollbarThickness;if(this.width_!=a){for(d=0;e=c[d];d++){f=e.getHeightWidth();if(this.RTL){var g=e.getRelativeToSurfaceXY().x,h=a-b,h=h/this.workspace_.scale,
-h=h-Blockly.BlockSvg.TAB_WIDTH;e.moveBy(h-g,0)}e.flyoutRect_&&(e.flyoutRect_.setAttribute("width",f.width),e.flyoutRect_.setAttribute("height",f.height),g=e.outputConnection?Blockly.BlockSvg.TAB_WIDTH:0,h=e.getRelativeToSurfaceXY(),e.flyoutRect_.setAttribute("x",this.RTL?h.x-f.width+g:h.x-g),e.flyoutRect_.setAttribute("y",h.y))}this.width_=a;Blockly.fireUiEvent(window,"resize")}};
+h=h-Blockly.BlockSvg.TAB_WIDTH;e.moveBy(h-g,0)}e.flyoutRect_&&(e.flyoutRect_.setAttribute("width",f.width),e.flyoutRect_.setAttribute("height",f.height),h=e.outputConnection?Blockly.BlockSvg.TAB_WIDTH:0,g=e.getRelativeToSurfaceXY(),e.flyoutRect_.setAttribute("x",this.RTL?g.x-f.width+h:g.x-h),(f=e.startHat_?Blockly.BlockSvg.START_HAT_HEIGHT:0)&&e.moveBy(0,f),e.flyoutRect_.setAttribute("y",g.y))}this.width_=a;Blockly.fireUiEvent(window,"resize")}};
 Blockly.Flyout.prototype.blockMouseDown_=function(a){var b=this;return function(c){Blockly.terminateDrag_();Blockly.hideChaff();Blockly.isRightButton(c)?a.showContextMenu_(c):(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),Blockly.Flyout.startDownEvent_=c,Blockly.Flyout.startBlock_=a,Blockly.Flyout.startFlyout_=b,Blockly.Flyout.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,b.onMouseUp_),Blockly.Flyout.onMouseMoveBlockWrapper_=Blockly.bindEvent_(document,"mousemove",this,b.onMouseMoveBlock_));
 c.stopPropagation()}};Blockly.Flyout.prototype.onMouseDown_=function(a){Blockly.isRightButton(a)||(Blockly.hideChaff(!0),Blockly.Flyout.terminateDrag_(),this.startDragMouseY_=a.clientY,Blockly.Flyout.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.onMouseMove_),Blockly.Flyout.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Flyout.terminateDrag_),a.preventDefault(),a.stopPropagation())};
 Blockly.Flyout.prototype.onMouseUp_=function(a){Blockly.dragMode_==Blockly.DRAG_FREE||Blockly.WidgetDiv.isVisible()||Blockly.Events.fire(new Blockly.Events.Ui(Blockly.Flyout.startBlock_,"click",void 0,void 0));Blockly.terminateDrag_()};Blockly.Flyout.prototype.onMouseMove_=function(a){var b=a.clientY-this.startDragMouseY_;this.startDragMouseY_=a.clientY;a=this.getMetrics_();b=a.viewTop-b;b=Math.min(b,a.contentHeight-a.viewHeight);b=Math.max(b,0);this.scrollbar_.set(b)};
 Blockly.Flyout.prototype.onMouseMoveBlock_=function(a){if("mousemove"==a.type&&1>=a.clientX&&0==a.clientY&&0==a.button)a.stopPropagation();else{var b=a.clientX-Blockly.Flyout.startDownEvent_.clientX;a=a.clientY-Blockly.Flyout.startDownEvent_.clientY;Math.sqrt(b*b+a*a)>Blockly.DRAG_RADIUS&&Blockly.Flyout.startFlyout_.createBlockFunc_(Blockly.Flyout.startBlock_)(Blockly.Flyout.startDownEvent_)}};
-Blockly.Flyout.prototype.createBlockFunc_=function(a){var b=this,c=this.targetWorkspace_;return function(d){if(!Blockly.isRightButton(d)&&!a.disabled){Blockly.Events.disable();var e=Blockly.Xml.blockToDom(a),e=Blockly.Xml.domToBlock(e,c),f=a.getSvgRoot();if(!f)throw"originBlock is not rendered.";f=Blockly.getSvgXY_(f,c);if(b.RTL){var g=c.getMetrics().viewWidth-b.width_;f.x+=g/c.scale-g}else f.x+=b.workspace_.scrollX/b.workspace_.scale-b.workspace_.scrollX;f.y+=b.workspace_.scrollY/b.workspace_.scale-
-b.workspace_.scrollY;g=e.getSvgRoot();if(!g)throw"block is not rendered.";g=Blockly.getSvgXY_(g,c);g.x+=c.scrollX/c.scale-c.scrollX;g.y+=c.scrollY/c.scale-c.scrollY;c.toolbox_&&!c.scrollbar&&(g.x+=c.toolbox_.width/c.scale);e.moveBy(f.x-g.x,f.y-g.y);Blockly.Events.enable();Blockly.Events.isEnabled()&&(Blockly.Events.setGroup(!0),Blockly.Events.fire(new Blockly.Events.Create(e)));b.autoClose?b.hide():b.filterForCapacity_();e.onMouseDown_(d);Blockly.dragMode_=Blockly.DRAG_FREE;e.setDragging_(!0)}}};
-Blockly.Flyout.prototype.filterForCapacity_=function(){for(var a=this.targetWorkspace_.remainingCapacity(),b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++)if(-1==this.permanentlyDisabled_.indexOf(d)){var e=d.getDescendants();d.setDisabled(e.length>a)}};Blockly.Flyout.prototype.getClientRect=function(){var a=this.svgGroup_.getBoundingClientRect();if(this.RTL){var b=a.left+a.width+1E9;return new goog.math.Rect(a.left,-1E9,b,2E9)}b=1E9+a.width+a.left;return new goog.math.Rect(-1E9,-1E9,b,2E9)};
+Blockly.Flyout.prototype.createBlockFunc_=function(a){var b=this,c=this.targetWorkspace_;return function(d){if(!Blockly.isRightButton(d)&&!a.disabled){Blockly.Events.disable();var e=b.placeNewBlock_(a,c);Blockly.Events.enable();Blockly.Events.isEnabled()&&(Blockly.Events.setGroup(!0),Blockly.Events.fire(new Blockly.Events.Create(e)));b.autoClose?b.hide():b.filterForCapacity_();e.onMouseDown_(d);Blockly.dragMode_=Blockly.DRAG_FREE;e.setDragging_(!0)}}};
+Blockly.Flyout.prototype.placeNewBlock_=function(a,b){var c=Blockly.Xml.blockToDom(a),c=Blockly.Xml.domToBlock(c,b),d=a.getSvgRoot();if(!d)throw"originBlock is not rendered.";d=Blockly.getSvgXY_(d,b);if(this.RTL){var e=b.getMetrics().viewWidth-this.width_;d.x+=e/b.scale-e}else d.x+=this.workspace_.scrollX/this.workspace_.scale-this.workspace_.scrollX;d.y+=this.workspace_.scrollY/this.workspace_.scale-this.workspace_.scrollY;e=c.getSvgRoot();if(!e)throw"block is not rendered.";e=Blockly.getSvgXY_(e,
+b);e.x+=b.scrollX/b.scale-b.scrollX;e.y+=b.scrollY/b.scale-b.scrollY;b.toolbox_&&!b.scrollbar&&(e.x+=b.toolbox_.width/b.scale);c.moveBy(d.x-e.x,d.y-e.y);return c};Blockly.Flyout.prototype.filterForCapacity_=function(){for(var a=this.targetWorkspace_.remainingCapacity(),b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++)if(-1==this.permanentlyDisabled_.indexOf(d)){var e=d.getDescendants();d.setDisabled(e.length>a)}};
+Blockly.Flyout.prototype.getClientRect=function(){var a=this.svgGroup_.getBoundingClientRect();if(this.RTL){var b=a.left+a.width+1E9;return new goog.math.Rect(a.left,-1E9,b,2E9)}b=1E9+a.width+a.left;return new goog.math.Rect(-1E9,-1E9,b,2E9)};
 Blockly.Flyout.terminateDrag_=function(){Blockly.Flyout.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Flyout.onMouseUpWrapper_),Blockly.Flyout.onMouseUpWrapper_=null);Blockly.Flyout.onMouseMoveBlockWrapper_&&(Blockly.unbindEvent_(Blockly.Flyout.onMouseMoveBlockWrapper_),Blockly.Flyout.onMouseMoveBlockWrapper_=null);Blockly.Flyout.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.Flyout.onMouseMoveWrapper_),Blockly.Flyout.onMouseMoveWrapper_=null);Blockly.Flyout.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Flyout.onMouseUpWrapper_),
 Blockly.Flyout.onMouseUpWrapper_=null);Blockly.Flyout.startDownEvent_=null;Blockly.Flyout.startBlock_=null;Blockly.Flyout.startFlyout_=null};Blockly.Toolbox=function(a){this.workspace_=a};Blockly.Toolbox.prototype.width=0;Blockly.Toolbox.prototype.selectedOption_=null;Blockly.Toolbox.prototype.lastCategory_=null;Blockly.Toolbox.prototype.CONFIG_={indentWidth:19,cssRoot:"blocklyTreeRoot",cssHideRoot:"blocklyHidden",cssItem:"",cssTreeRow:"blocklyTreeRow",cssItemLabel:"blocklyTreeLabel",cssTreeIcon:"blocklyTreeIcon",cssExpandedFolderIcon:"blocklyTreeIconOpen",cssFileIcon:"blocklyTreeIconNone",cssSelectedRow:"blocklyTreeSelected"};
 Blockly.Toolbox.prototype.init=function(){var a=this.workspace_;this.HtmlDiv=goog.dom.createDom("div","blocklyToolboxDiv");this.HtmlDiv.setAttribute("dir",a.RTL?"RTL":"LTR");document.body.appendChild(this.HtmlDiv);Blockly.bindEvent_(this.HtmlDiv,"mousedown",this,function(a){Blockly.isRightButton(a)||a.target==this.HtmlDiv?Blockly.hideChaff(!1):Blockly.hideChaff(!0)});this.flyout_=new Blockly.Flyout({disabledPatternId:a.options.disabledPatternId,parentWorkspace:a,RTL:a.RTL});goog.dom.insertSiblingAfter(this.flyout_.createDom(),
diff --git a/core/block_render_svg.js b/core/block_render_svg.js
index 362821264..b077d8197 100644
--- a/core/block_render_svg.js
+++ b/core/block_render_svg.js
@@ -86,8 +86,8 @@ Blockly.BlockSvg.START_HAT_HEIGHT = 15;
  * @const
  */
 Blockly.BlockSvg.START_HAT_PATH = 'c 30,-' +
-  Blockly.BlockSvg.START_HAT_HEIGHT +' 70,-' +
-  Blockly.BlockSvg.START_HAT_HEIGHT +' 100,0';
+    Blockly.BlockSvg.START_HAT_HEIGHT + ' 70,-' +
+    Blockly.BlockSvg.START_HAT_HEIGHT + ' 100,0';
 /**
  * Path of the top hat's curve's highlight in LTR.
  * @const
@@ -106,14 +106,14 @@ Blockly.BlockSvg.START_HAT_HIGHLIGHT_RTL =
  * @const
  */
 Blockly.BlockSvg.DISTANCE_45_INSIDE = (1 - Math.SQRT1_2) *
-      (Blockly.BlockSvg.CORNER_RADIUS - 0.5) + 0.5;
+    (Blockly.BlockSvg.CORNER_RADIUS - 0.5) + 0.5;
 /**
  * Distance from shape edge to intersect with a curved corner at 45 degrees.
  * Applies to highlighting on around the outside of a curve.
  * @const
  */
 Blockly.BlockSvg.DISTANCE_45_OUTSIDE = (1 - Math.SQRT1_2) *
-      (Blockly.BlockSvg.CORNER_RADIUS + 0.5) - 0.5;
+    (Blockly.BlockSvg.CORNER_RADIUS + 0.5) - 0.5;
 /**
  * SVG path for drawing next/previous notch from left to right.
  * @const
diff --git a/core/flyout.js b/core/flyout.js
index 33d3da499..1f05597f4 100644
--- a/core/flyout.js
+++ b/core/flyout.js
@@ -440,8 +440,8 @@ Blockly.Flyout.prototype.show = function(xmlList) {
 
 /**
  * Lay out the blocks in the flyout.
- * @param {!Array<Blockly.BlockSvg>} blocks The blocks to lay out.
- * @param {!Array<number>} gaps The visible gaps between blocks.
+ * @param {!Array.<!Blockly.BlockSvg>} blocks The blocks to lay out.
+ * @param {!Array.<number>} gaps The visible gaps between blocks.
  * @param {number} margin The margin around the edges of the flyout.
  * @private
  */
@@ -566,11 +566,10 @@ Blockly.Flyout.prototype.reflow = function() {
         block.flyoutRect_.setAttribute('x',
             this.RTL ? blockXY.x - blockHW.width + tab : blockXY.x - tab);
         // For hat blocks we want to shift them down by the hat height
-        // since the y coordinate is the corner, not the top of the
-        // hat.
+        // since the y coordinate is the corner, not the top of the hat.
         var hatOffset =
-          block.startHat_ ? Blockly.BlockSvg.START_HAT_HEIGHT : 0;
-        if (hatOffset != 0) {
+            block.startHat_ ? Blockly.BlockSvg.START_HAT_HEIGHT : 0;
+        if (hatOffset) {
           block.moveBy(0, hatOffset);
         }
         block.flyoutRect_.setAttribute('y', blockXY.y);
diff --git a/core/scrollbar.js b/core/scrollbar.js
index adaae5dfa..df01000c6 100644
--- a/core/scrollbar.js
+++ b/core/scrollbar.js
@@ -281,8 +281,7 @@ Blockly.Scrollbar.prototype.resize = function(opt_metrics) {
 /**
  * Recalculate a horizontal scrollbar's location and length.
  * @param {!Object} hostMetrics A data structure describing all the
- * required dimensions, possibly fetched from the host
- * object.
+ *     required dimensions, possibly fetched from the host object.
  * @private
  */
 Blockly.Scrollbar.prototype.resizeHorizontal_ = function(hostMetrics) {
@@ -321,8 +320,7 @@ Blockly.Scrollbar.prototype.resizeHorizontal_ = function(hostMetrics) {
 /**
  * Recalculate a vertical scrollbar's location and length.
  * @param {!Object} hostMetrics A data structure describing all the
- * required dimensions, possibly fetched from the host
- * object.
+ *     required dimensions, possibly fetched from the host object.
  * @private
  */
 Blockly.Scrollbar.prototype.resizeVertical_ = function(hostMetrics) {