From 6516363469311506cedb24bb7c5a2a4e0acc829e Mon Sep 17 00:00:00 2001
From: alschmiedt <aschmiedt@google.com>
Date: Thu, 19 Sep 2019 15:15:14 -0700
Subject: [PATCH] Change setLocation to setCurNode (#3051)

* Change setLocation to setCurNode
---
 blockly_compressed.js                 | 545 +++++++++++++-------------
 blockly_uncompressed.js               |  12 +-
 core/gesture.js                       |   4 +-
 core/keyboard_nav/cursor.js           |  10 +-
 core/keyboard_nav/flyout_cursor.js    |   4 +-
 core/keyboard_nav/navigation.js       |  24 +-
 demos/keyboard_nav/basic_cursor.js    |   4 +-
 demos/keyboard_nav/index.html         |   2 +-
 tests/mocha/cursor_test.js            |   8 +-
 tests/mocha/navigation_modify_test.js |  94 ++---
 tests/mocha/navigation_test.js        |  30 +-
 11 files changed, 369 insertions(+), 368 deletions(-)

diff --git a/blockly_compressed.js b/blockly_compressed.js
index a8353f009..7c8d37f7a 100644
--- a/blockly_compressed.js
+++ b/blockly_compressed.js
@@ -44,10 +44,10 @@ Blockly.utils.dom.createSvgElement=function(a,b,c){a=document.createElementNS(Bl
 Blockly.utils.dom.removeClass=function(a,b){var c=a.getAttribute("class");if(-1==(" "+c+" ").indexOf(" "+b+" "))return!1;c=c.split(/\s+/);for(var 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");return!0};Blockly.utils.dom.hasClass=function(a,b){return-1!=(" "+a.getAttribute("class")+" ").indexOf(" "+b+" ")};Blockly.utils.dom.removeNode=function(a){return a&&a.parentNode?a.parentNode.removeChild(a):null};
 Blockly.utils.dom.insertAfter=function(a,b){var c=b.nextSibling,d=b.parentNode;if(!d)throw Error("Reference node has no parent.");c?d.insertBefore(a,c):d.appendChild(a)};Blockly.utils.dom.containsNode=function(a,b){return!!(a.compareDocumentPosition(b)&Blockly.utils.dom.Node.DOCUMENT_POSITION_CONTAINED_BY)};Blockly.utils.dom.setCssTransform=function(a,b){a.style.transform=b;a.style["-webkit-transform"]=b};
 Blockly.utils.dom.startTextWidthCache=function(){Blockly.utils.dom.cacheReference_++;Blockly.utils.dom.cacheWidths_||(Blockly.utils.dom.cacheWidths_={})};Blockly.utils.dom.stopTextWidthCache=function(){Blockly.utils.dom.cacheReference_--;Blockly.utils.dom.cacheReference_||(Blockly.utils.dom.cacheWidths_=null)};
-Blockly.utils.dom.getTextWidth=function(a){var b=a.textContent+"\n"+a.className.baseVal,c;if(Blockly.utils.dom.cacheWidths_&&(c=Blockly.utils.dom.cacheWidths_[b]))return c;try{c=Blockly.utils.userAgent.IE||Blockly.utils.userAgent.EDGE?a.getBBox().width:a.getComputedTextLength()}catch(d){return 8*a.textContent.length}Blockly.utils.dom.cacheWidths_&&(Blockly.utils.dom.cacheWidths_[b]=c);return c};Blockly.utils.math={};Blockly.utils.math.toRadians=function(a){return a*Math.PI/180};Blockly.utils.math.toDegrees=function(a){return 180*a/Math.PI};Blockly.utils.math.clamp=function(a,b,c){if(c<a){var d=c;c=a;a=d}return Math.max(a,Math.min(b,c))};Blockly.Cursor=function(){this.drawer_=this.curNode_=null};Blockly.Cursor.prototype.setDrawer=function(a){this.drawer_=a};Blockly.Cursor.prototype.getDrawer=function(){return this.drawer_};Blockly.Cursor.prototype.getCurNode=function(){return this.curNode_};Blockly.Cursor.prototype.setLocation=function(a){this.curNode_=a;this.drawer_&&this.drawer_.draw(this.getCurNode())};Blockly.Cursor.prototype.hide=function(){this.drawer_&&this.drawer_.hide()};
-Blockly.Cursor.prototype.next=function(){var a=this.getCurNode();if(!a)return null;for(a=a.next();a&&a.next()&&(a.getType()===Blockly.ASTNode.types.NEXT||a.getType()===Blockly.ASTNode.types.BLOCK);)a=a.next();a&&this.setLocation(a);return a};
-Blockly.Cursor.prototype["in"]=function(){var a=this.getCurNode();if(!a)return null;if(a.getType()===Blockly.ASTNode.types.PREVIOUS||a.getType()===Blockly.ASTNode.types.OUTPUT)a=a.next();(a=a["in"]())&&a.getType()===Blockly.ASTNode.types.OUTPUT&&(a=a.next()||a);a&&this.setLocation(a);return a};
-Blockly.Cursor.prototype.prev=function(){var a=this.getCurNode();if(!a)return null;for(a=a.prev();a&&a.prev()&&(a.getType()===Blockly.ASTNode.types.NEXT||a.getType()===Blockly.ASTNode.types.BLOCK);)a=a.prev();a&&this.setLocation(a);return a};Blockly.Cursor.prototype.out=function(){var a=this.getCurNode();if(!a)return null;a=a.out();a.getType()===Blockly.ASTNode.types.BLOCK&&(a=a.prev());a&&this.setLocation(a);return a};Blockly.utils.object={};Blockly.utils.object.inherits=function(a,b){a.superClass_=b.prototype;a.prototype=Object.create(b.prototype);a.prototype.constructor=a};Blockly.utils.object.mixin=function(a,b){for(var c in b)a[c]=b[c]};Blockly.utils.object.values=function(a){return Object.values?Object.values(a):Object.keys(a).map(function(b){return a[b]})};Blockly.MarkerCursor=function(){Blockly.MarkerCursor.superClass_.constructor.call(this)};Blockly.utils.object.inherits(Blockly.MarkerCursor,Blockly.Cursor);Blockly.MarkerCursor.prototype.next=function(){return null};Blockly.MarkerCursor.prototype["in"]=function(){return null};Blockly.MarkerCursor.prototype.prev=function(){return null};Blockly.MarkerCursor.prototype.out=function(){return null};Blockly.Events={};Blockly.Events.group_="";Blockly.Events.recordUndo=!0;Blockly.Events.disabled_=0;Blockly.Events.CREATE="create";Blockly.Events.BLOCK_CREATE=Blockly.Events.CREATE;Blockly.Events.DELETE="delete";Blockly.Events.BLOCK_DELETE=Blockly.Events.DELETE;Blockly.Events.CHANGE="change";Blockly.Events.BLOCK_CHANGE=Blockly.Events.CHANGE;Blockly.Events.MOVE="move";Blockly.Events.BLOCK_MOVE=Blockly.Events.MOVE;Blockly.Events.VAR_CREATE="var_create";Blockly.Events.VAR_DELETE="var_delete";
+Blockly.utils.dom.getTextWidth=function(a){var b=a.textContent+"\n"+a.className.baseVal,c;if(Blockly.utils.dom.cacheWidths_&&(c=Blockly.utils.dom.cacheWidths_[b]))return c;try{c=Blockly.utils.userAgent.IE||Blockly.utils.userAgent.EDGE?a.getBBox().width:a.getComputedTextLength()}catch(d){return 8*a.textContent.length}Blockly.utils.dom.cacheWidths_&&(Blockly.utils.dom.cacheWidths_[b]=c);return c};Blockly.utils.math={};Blockly.utils.math.toRadians=function(a){return a*Math.PI/180};Blockly.utils.math.toDegrees=function(a){return 180*a/Math.PI};Blockly.utils.math.clamp=function(a,b,c){if(c<a){var d=c;c=a;a=d}return Math.max(a,Math.min(b,c))};Blockly.Cursor=function(){this.drawer_=this.curNode_=null};Blockly.Cursor.prototype.setDrawer=function(a){this.drawer_=a};Blockly.Cursor.prototype.getDrawer=function(){return this.drawer_};Blockly.Cursor.prototype.getCurNode=function(){return this.curNode_};Blockly.Cursor.prototype.setCurNode=function(a){this.curNode_=a;this.drawer_&&this.drawer_.draw(this.getCurNode())};Blockly.Cursor.prototype.hide=function(){this.drawer_&&this.drawer_.hide()};
+Blockly.Cursor.prototype.next=function(){var a=this.getCurNode();if(!a)return null;for(a=a.next();a&&a.next()&&(a.getType()===Blockly.ASTNode.types.NEXT||a.getType()===Blockly.ASTNode.types.BLOCK);)a=a.next();a&&this.setCurNode(a);return a};
+Blockly.Cursor.prototype["in"]=function(){var a=this.getCurNode();if(!a)return null;if(a.getType()===Blockly.ASTNode.types.PREVIOUS||a.getType()===Blockly.ASTNode.types.OUTPUT)a=a.next();(a=a["in"]())&&a.getType()===Blockly.ASTNode.types.OUTPUT&&(a=a.next()||a);a&&this.setCurNode(a);return a};
+Blockly.Cursor.prototype.prev=function(){var a=this.getCurNode();if(!a)return null;for(a=a.prev();a&&a.prev()&&(a.getType()===Blockly.ASTNode.types.NEXT||a.getType()===Blockly.ASTNode.types.BLOCK);)a=a.prev();a&&this.setCurNode(a);return a};Blockly.Cursor.prototype.out=function(){var a=this.getCurNode();if(!a)return null;a=a.out();a.getType()===Blockly.ASTNode.types.BLOCK&&(a=a.prev());a&&this.setCurNode(a);return a};Blockly.utils.object={};Blockly.utils.object.inherits=function(a,b){a.superClass_=b.prototype;a.prototype=Object.create(b.prototype);a.prototype.constructor=a};Blockly.utils.object.mixin=function(a,b){for(var c in b)a[c]=b[c]};Blockly.utils.object.values=function(a){return Object.values?Object.values(a):Object.keys(a).map(function(b){return a[b]})};Blockly.MarkerCursor=function(){Blockly.MarkerCursor.superClass_.constructor.call(this)};Blockly.utils.object.inherits(Blockly.MarkerCursor,Blockly.Cursor);Blockly.MarkerCursor.prototype.next=function(){return null};Blockly.MarkerCursor.prototype["in"]=function(){return null};Blockly.MarkerCursor.prototype.prev=function(){return null};Blockly.MarkerCursor.prototype.out=function(){return null};Blockly.Events={};Blockly.Events.group_="";Blockly.Events.recordUndo=!0;Blockly.Events.disabled_=0;Blockly.Events.CREATE="create";Blockly.Events.BLOCK_CREATE=Blockly.Events.CREATE;Blockly.Events.DELETE="delete";Blockly.Events.BLOCK_DELETE=Blockly.Events.DELETE;Blockly.Events.CHANGE="change";Blockly.Events.BLOCK_CHANGE=Blockly.Events.CHANGE;Blockly.Events.MOVE="move";Blockly.Events.BLOCK_MOVE=Blockly.Events.MOVE;Blockly.Events.VAR_CREATE="var_create";Blockly.Events.VAR_DELETE="var_delete";
 Blockly.Events.VAR_RENAME="var_rename";Blockly.Events.UI="ui";Blockly.Events.COMMENT_CREATE="comment_create";Blockly.Events.COMMENT_DELETE="comment_delete";Blockly.Events.COMMENT_CHANGE="comment_change";Blockly.Events.COMMENT_MOVE="comment_move";Blockly.Events.FINISHED_LOADING="finished_loading";Blockly.Events.BUMP_EVENTS=[Blockly.Events.BLOCK_CREATE,Blockly.Events.BLOCK_MOVE,Blockly.Events.COMMENT_CREATE,Blockly.Events.COMMENT_MOVE];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=a.slice();b||c.reverse();for(var d=[],e=Object.create(null),f=0,g;g=c[f];f++)if(!g.isNull()){var h=[g.type,g.blockId,g.workspaceId].join(" "),k=e[h],l=k?k.event:null;if(!k)e[h]={event:g,index:f},d.push(g);else if(g.type==Blockly.Events.MOVE&&k.index==f-1)l.newParentId=g.newParentId,l.newInputName=g.newInputName,l.newCoordinate=g.newCoordinate,k.index=f;else if(g.type==Blockly.Events.CHANGE&&g.element==l.element&&g.name==l.name)l.newValue=g.newValue;else if(g.type!=
@@ -133,7 +133,7 @@ Blockly.WorkspaceComment.prototype.setContent=function(a){this.content_!=a&&(Blo
 Blockly.WorkspaceComment.prototype.toXml=function(a){var b=Blockly.utils.xml.createElement("comment");a||(b.id=this.id);b.textContent=this.getContent();return b};Blockly.WorkspaceComment.fireCreateEvent=function(a){if(Blockly.Events.isEnabled()){var b=Blockly.Events.getGroup();b||Blockly.Events.setGroup(!0);try{Blockly.Events.fire(new Blockly.Events.CommentCreate(a))}finally{b||Blockly.Events.setGroup(!1)}}};
 Blockly.WorkspaceComment.fromXml=function(a,b){var c=Blockly.WorkspaceComment.parseAttributes(a);c=new Blockly.WorkspaceComment(b,c.content,c.h,c.w,c.id);var d=parseInt(a.getAttribute("x"),10),e=parseInt(a.getAttribute("y"),10);isNaN(d)||isNaN(e)||c.moveBy(d,e);Blockly.WorkspaceComment.fireCreateEvent(c);return c};
 Blockly.WorkspaceComment.parseAttributes=function(a){var b=a.getAttribute("h"),c=a.getAttribute("w");return{id:a.getAttribute("id"),h:b?parseInt(b,10):100,w:c?parseInt(c,10):100,x:parseInt(a.getAttribute("x"),10),y:parseInt(a.getAttribute("y"),10),content:a.textContent}};Blockly.Workspace=function(a){this.id=Blockly.utils.genUid();Blockly.Workspace.WorkspaceDB_[this.id]=this;this.options=a||{};this.RTL=!!this.options.RTL;this.horizontalLayout=!!this.options.horizontalLayout;this.toolboxPosition=this.options.toolboxPosition;this.topBlocks_=[];this.topComments_=[];this.commentDB_=Object.create(null);this.listeners_=[];this.undoStack_=[];this.redoStack_=[];this.blockDB_=Object.create(null);this.typedBlocksDB_=Object.create(null);this.variableMap_=new Blockly.VariableMap(this);
-this.marker_=this.cursor_=this.potentialVariableMap_=null;Blockly.getTheme()||Blockly.setTheme(Blockly.Themes.Classic);this.setCursor(new Blockly.Cursor);this.setMarker(new Blockly.MarkerCursor)};Blockly.Workspace.prototype.rendered=!1;Blockly.Workspace.prototype.isClearing=!1;Blockly.Workspace.prototype.MAX_UNDO=1024;Blockly.Workspace.prototype.connectionDBList=null;Blockly.Workspace.prototype.setCursor=function(a){this.cursor_=a};Blockly.Workspace.prototype.setMarker=function(a){this.marker_=a};
+this.potentialVariableMap_=null;this.cursor_=new Blockly.Cursor;this.marker_=new Blockly.MarkerCursor;Blockly.getTheme()||Blockly.setTheme(Blockly.Themes.Classic)};Blockly.Workspace.prototype.rendered=!1;Blockly.Workspace.prototype.isClearing=!1;Blockly.Workspace.prototype.MAX_UNDO=1024;Blockly.Workspace.prototype.connectionDBList=null;Blockly.Workspace.prototype.setCursor=function(a){this.cursor_=a};Blockly.Workspace.prototype.setMarker=function(a){this.marker_=a};
 Blockly.Workspace.prototype.getCursor=function(){return this.cursor_};Blockly.Workspace.prototype.getMarker=function(){return this.marker_};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.sortObjects_=function(a,b){var c=a.getRelativeToSurfaceXY(),d=b.getRelativeToSurfaceXY();return c.y+Blockly.Workspace.prototype.sortObjects_.offset*c.x-(d.y+Blockly.Workspace.prototype.sortObjects_.offset*d.x)};Blockly.Workspace.prototype.addTopBlock=function(a){this.topBlocks_.push(a)};Blockly.Workspace.prototype.removeTopBlock=function(a){if(!Blockly.utils.arrayRemove(this.topBlocks_,a))throw Error("Block not present in workspace's list of top-most blocks.");};
 Blockly.Workspace.prototype.getTopBlocks=function(a){var b=[].concat(this.topBlocks_);a&&1<b.length&&(this.sortObjects_.offset=Math.sin(Blockly.utils.math.toRadians(Blockly.Workspace.SCAN_ANGLE)),this.RTL&&(this.sortObjects_.offset*=-1),b.sort(this.sortObjects_));return b};Blockly.Workspace.prototype.addTypedBlock=function(a){this.typedBlocksDB_[a.type]||(this.typedBlocksDB_[a.type]=[]);this.typedBlocksDB_[a.type].push(a)};
@@ -210,35 +210,19 @@ Blockly.Connection.prototype.targetBlock=function(){return this.isConnected()?th
 Blockly.Connection.prototype.setCheck=function(a){a?(Array.isArray(a)||(a=[a]),this.check_=a,this.onCheckChanged_()):this.check_=null;return this};Blockly.Connection.prototype.getCheck=function(){return this.check_};Blockly.Connection.prototype.setShadowDom=function(a){this.shadowDom_=a};Blockly.Connection.prototype.getShadowDom=function(){return this.shadowDom_};Blockly.Connection.prototype.neighbours_=function(a){return[]};
 Blockly.Connection.prototype.getParentInput=function(){for(var a=null,b=this.sourceBlock_,c=b.inputList,d=0;d<b.inputList.length;d++)if(c[d].connection===this){a=c[d];break}return a};
 Blockly.Connection.prototype.toString=function(){var a=this.sourceBlock_;if(a)if(a.outputConnection==this)var b="Output Connection of ";else if(a.previousConnection==this)b="Previous Connection of ";else if(a.nextConnection==this)b="Next Connection of ";else{b=null;for(var c=0,d;d=a.inputList[c];c++)if(d.connection==this){b=d;break}if(b)b='Input "'+b.name+'" connection on ';else return console.warn("Connection not actually connected to sourceBlock_"),"Orphan Connection"}else return"Orphan Connection";
-return b+a.toDevString()};Blockly.blockRendering={};Blockly.blockRendering.rendererMap_={};Blockly.blockRendering.useDebugger=!1;Blockly.blockRendering.register=function(a,b){if(Blockly.blockRendering.rendererMap_[a])throw Error("Renderer has already been registered.");Blockly.blockRendering.rendererMap_[a]=b};Blockly.blockRendering.startDebugger=function(){Blockly.blockRendering.useDebugger=!0};Blockly.blockRendering.stopDebugger=function(){Blockly.blockRendering.useDebugger=!1};
-Blockly.blockRendering.init=function(a){if(!Blockly.blockRendering.rendererMap_[a])throw Error("Renderer not registered: ",a);var b=function(){b.superClass_.constructor.call(this)};Blockly.utils.object.inherits(b,Blockly.blockRendering.rendererMap_[a]);a=new b;a.init();return a};Blockly.ConnectionDB=function(){this.connections_=[]};Blockly.ConnectionDB.prototype.addConnection=function(a){if(a.inDB_)throw Error("Connection already in database.");if(!a.getSourceBlock().isInFlyout){var b=this.findPositionForConnection_(a);this.connections_.splice(b,0,a);a.inDB_=!0}};
-Blockly.ConnectionDB.prototype.findConnection=function(a){if(!this.connections_.length)return-1;var b=this.findPositionForConnection_(a);if(b>=this.connections_.length)return-1;for(var c=a.y_,d=b;0<=d&&this.connections_[d].y_==c;){if(this.connections_[d]==a)return d;d--}for(;b<this.connections_.length&&this.connections_[b].y_==c;){if(this.connections_[b]==a)return b;b++}return-1};
-Blockly.ConnectionDB.prototype.findPositionForConnection_=function(a){if(!this.connections_.length)return 0;for(var b=0,c=this.connections_.length;b<c;){var d=Math.floor((b+c)/2);if(this.connections_[d].y_<a.y_)b=d+1;else if(this.connections_[d].y_>a.y_)c=d;else{b=d;break}}return b};
-Blockly.ConnectionDB.prototype.removeConnection_=function(a){if(!a.inDB_)throw Error("Connection not in database.");var b=this.findConnection(a);if(-1==b)throw Error("Unable to find connection in connectionDB.");a.inDB_=!1;this.connections_.splice(b,1)};
-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.connections_,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 l=[];h=g=k;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.connections_[a].y_-b)<=c};
-Blockly.ConnectionDB.prototype.searchForClosest=function(a,b,c){if(!this.connections_.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.connections_[k],a.isConnectionAllowed(h,g)&&(c=h,g=h.distanceFrom(a)),k--;for(;f<this.connections_.length&&this.isInYRange_(f,a.y_,b);)h=this.connections_[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(){var a=[];a[Blockly.INPUT_VALUE]=new Blockly.ConnectionDB;a[Blockly.OUTPUT_VALUE]=new Blockly.ConnectionDB;a[Blockly.NEXT_STATEMENT]=new Blockly.ConnectionDB;a[Blockly.PREVIOUS_STATEMENT]=new Blockly.ConnectionDB;return a};Blockly.constants={};Blockly.LINE_MODE_MULTIPLIER=40;Blockly.PAGE_MODE_MULTIPLIER=125;Blockly.DRAG_RADIUS=5;Blockly.FLYOUT_DRAG_RADIUS=10;Blockly.SNAP_RADIUS=28;Blockly.CONNECTING_SNAP_RADIUS=Blockly.SNAP_RADIUS;Blockly.CURRENT_CONNECTION_PREFERENCE=8;Blockly.INSERTION_MARKER_COLOUR="#000000";Blockly.BUMP_DELAY=250;Blockly.BUMP_RANDOMNESS=10;Blockly.COLLAPSE_CHARS=30;Blockly.LONGPRESS=750;Blockly.SOUND_LIMIT=100;Blockly.DRAG_STACK=!0;Blockly.HSV_SATURATION=.45;Blockly.HSV_VALUE=.65;
-Blockly.SPRITE={width:96,height:124,url:"sprites.png"};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_BEGIN=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.TOOLBOX_AT_TOP=0;Blockly.TOOLBOX_AT_BOTTOM=1;Blockly.TOOLBOX_AT_LEFT=2;Blockly.TOOLBOX_AT_RIGHT=3;Blockly.DELETE_AREA_NONE=null;Blockly.DELETE_AREA_TRASH=1;Blockly.DELETE_AREA_TOOLBOX=2;Blockly.VARIABLE_CATEGORY_NAME="VARIABLE";Blockly.VARIABLE_DYNAMIC_CATEGORY_NAME="VARIABLE_DYNAMIC";Blockly.PROCEDURE_CATEGORY_NAME="PROCEDURE";
-Blockly.RENAME_VARIABLE_ID="RENAME_VARIABLE_ID";Blockly.DELETE_VARIABLE_ID="DELETE_VARIABLE_ID";Blockly.CursorSvg=function(a,b){this.workspace_=a;this.isMarker_=b;this.parent_=null;this.constants_=new Blockly.blockRendering.ConstantProvider;this.constants_.init()};Blockly.CursorSvg.CURSOR_HEIGHT=5;Blockly.CursorSvg.CURSOR_WIDTH=100;Blockly.CursorSvg.NOTCH_START_LENGTH=24;Blockly.CursorSvg.VERTICAL_PADDING=5;Blockly.CursorSvg.STACK_PADDING=10;Blockly.CursorSvg.BLOCK_PADDING=2;Blockly.CursorSvg.HEIGHT_MULTIPLIER=.75;Blockly.CursorSvg.CURSOR_COLOR="#cc0a0a";Blockly.CursorSvg.MARKER_COLOR="#4286f4";
-Blockly.CursorSvg.CURSOR_CLASS="blocklyCursor";Blockly.CursorSvg.MARKER_CLASS="blocklyMarker";Blockly.CursorSvg.prototype.currentCursorSvg=null;Blockly.CursorSvg.prototype.getSvgRoot=function(){return this.svgGroup_};Blockly.CursorSvg.prototype.createDom=function(){this.svgGroup_=Blockly.utils.dom.createSvgElement("g",{"class":this.isMarker_?Blockly.CursorSvg.MARKER_CLASS:Blockly.CursorSvg.CURSOR_CLASS},null);this.createCursorSvg_();return this.svgGroup_};
-Blockly.CursorSvg.prototype.setParent_=function(a){this.isMarker_?(this.parent_&&this.parent_.setMarkerSvg(null),a.setMarkerSvg(this.getSvgRoot())):(this.parent_&&this.parent_.setCursorSvg(null),a.setCursorSvg(this.getSvgRoot()));this.parent_=a};
-Blockly.CursorSvg.prototype.showWithBlockPrevOutput_=function(a){if(a){var b=a.width,c=a.height,d=c*Blockly.CursorSvg.HEIGHT_MULTIPLIER,e=Blockly.CursorSvg.BLOCK_PADDING;a.previousConnection?this.positionPrevious_(b,e,d):a.outputConnection?this.positionOutput_(b,c):this.positionBlock_(b,e,d);this.currentCursorSvg=this.cursorBlock_;this.setParent_(a);this.showCurrent_()}};
-Blockly.CursorSvg.prototype.showWithCoordinates_=function(a){a=a.getWsCoordinate();this.currentCursorSvg=this.cursorSvgLine_;this.setParent_(this.workspace_);this.positionLine_(a.x,a.y,Blockly.CursorSvg.CURSOR_WIDTH);this.showCurrent_()};Blockly.CursorSvg.prototype.showWithField_=function(a){a=a.getLocation();var b=a.borderRect_.width.baseVal.value,c=a.borderRect_.height.baseVal.value;this.currentCursorSvg=this.cursorSvgRect_;this.setParent_(a);this.positionRect_(0,0,b,c);this.showCurrent_()};
-Blockly.CursorSvg.prototype.showWithInput_=function(a){a=a.getLocation();var b=Blockly.utils.svgPaths.moveTo(0,0)+this.constants_.PUZZLE_TAB.pathDown,c=a.getSourceBlock();this.currentCursorSvg=this.cursorInput_;this.cursorInput_.setAttribute("d",b);this.setParent_(c);this.positionInput_(a);this.showCurrent_()};
-Blockly.CursorSvg.prototype.showWithNext_=function(a){var b=a.getLocation();a=b.getSourceBlock();b=b.getOffsetInBlock().y;var c=a.getHeightWidth().width;this.currentCursorSvg=this.cursorSvgLine_;this.setParent_(a);this.positionLine_(0,b,c);this.showCurrent_()};
-Blockly.CursorSvg.prototype.showWithStack_=function(a){a=a.getLocation();var b=a.getHeightWidth(),c=b.width+Blockly.CursorSvg.STACK_PADDING;b=b.height+Blockly.CursorSvg.STACK_PADDING;var d=-1*Blockly.CursorSvg.STACK_PADDING/2,e=-1*Blockly.CursorSvg.STACK_PADDING/2;this.currentCursorSvg=this.cursorSvgRect_;this.setParent_(a);this.positionRect_(d,e,c,b);this.showCurrent_()};Blockly.CursorSvg.prototype.showCurrent_=function(){this.hide();this.currentCursorSvg.style.display=""};
-Blockly.CursorSvg.prototype.positionBlock_=function(a,b,c){a=Blockly.utils.svgPaths.moveBy(-1*b,c)+Blockly.utils.svgPaths.lineOnAxis("V",-1*b)+Blockly.utils.svgPaths.lineOnAxis("H",a+2*b)+Blockly.utils.svgPaths.lineOnAxis("V",c);this.cursorBlock_.setAttribute("d",a)};Blockly.CursorSvg.prototype.positionInput_=function(a){var b=a.getOffsetInBlock().x,c=a.getOffsetInBlock().y;this.cursorInput_.setAttribute("transform","translate("+b+","+c+")"+(a.getSourceBlock().RTL?" scale(-1 1)":""))};
-Blockly.CursorSvg.prototype.positionLine_=function(a,b,c){this.cursorSvgLine_.setAttribute("x",a);this.cursorSvgLine_.setAttribute("y",b);this.cursorSvgLine_.setAttribute("width",c)};
-Blockly.CursorSvg.prototype.positionOutput_=function(a,b){var c=Blockly.utils.svgPaths.moveBy(a,0)+Blockly.utils.svgPaths.lineOnAxis("h",-1*(a-this.constants_.PUZZLE_TAB.width))+Blockly.utils.svgPaths.lineOnAxis("v",this.constants_.TAB_OFFSET_FROM_TOP)+this.constants_.PUZZLE_TAB.pathDown+Blockly.utils.svgPaths.lineOnAxis("V",b)+Blockly.utils.svgPaths.lineOnAxis("H",a);this.cursorBlock_.setAttribute("d",c)};
-Blockly.CursorSvg.prototype.positionPrevious_=function(a,b,c){a=Blockly.utils.svgPaths.moveBy(-1*b,c)+Blockly.utils.svgPaths.lineOnAxis("V",-1*b)+Blockly.utils.svgPaths.lineOnAxis("H",this.constants_.NOTCH_OFFSET_LEFT)+this.constants_.NOTCH.pathLeft+Blockly.utils.svgPaths.lineOnAxis("H",a+2*b)+Blockly.utils.svgPaths.lineOnAxis("V",c);this.cursorBlock_.setAttribute("d",a);this.cursorInput_.setAttribute("transform"," scale(-1 1)")};
-Blockly.CursorSvg.prototype.positionRect_=function(a,b,c,d){this.cursorSvgRect_.setAttribute("x",a);this.cursorSvgRect_.setAttribute("y",b);this.cursorSvgRect_.setAttribute("width",c);this.cursorSvgRect_.setAttribute("height",d)};Blockly.CursorSvg.prototype.hide=function(){this.cursorSvgLine_.style.display="none";this.cursorSvgRect_.style.display="none";this.cursorInput_.style.display="none";this.cursorBlock_.style.display="none"};
-Blockly.CursorSvg.prototype.draw=function(a){a&&(a.getType()===Blockly.ASTNode.types.BLOCK?(a=a.getLocation(),this.showWithBlockPrevOutput_(a)):a.getType()===Blockly.ASTNode.types.OUTPUT?(a=a.getLocation().getSourceBlock(),this.showWithBlockPrevOutput_(a)):a.getLocation().type===Blockly.INPUT_VALUE?this.showWithInput_(a):a.getLocation().type===Blockly.NEXT_STATEMENT?this.showWithNext_(a):a.getType()===Blockly.ASTNode.types.PREVIOUS?(a=a.getLocation().getSourceBlock(),this.showWithBlockPrevOutput_(a)):
-a.getType()===Blockly.ASTNode.types.FIELD?this.showWithField_(a):a.getType()===Blockly.ASTNode.types.WORKSPACE?this.showWithCoordinates_(a):a.getType()===Blockly.ASTNode.types.STACK&&this.showWithStack_(a))};
-Blockly.CursorSvg.prototype.createCursorSvg_=function(){var a=this.isMarker_?Blockly.CursorSvg.MARKER_COLOR:Blockly.CursorSvg.CURSOR_COLOR;this.cursorSvg_=Blockly.utils.dom.createSvgElement("g",{width:Blockly.CursorSvg.CURSOR_WIDTH,height:Blockly.CursorSvg.CURSOR_HEIGHT},this.svgGroup_);this.cursorSvgLine_=Blockly.utils.dom.createSvgElement("rect",{x:"0",y:"0",fill:a,width:Blockly.CursorSvg.CURSOR_WIDTH,height:Blockly.CursorSvg.CURSOR_HEIGHT,style:"display: none;"},this.cursorSvg_);this.cursorSvgRect_=
-Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyVerticalCursor",x:"0",y:"0",rx:"10",ry:"10",style:"display: none;",stroke:a},this.cursorSvg_);this.cursorInput_=Blockly.utils.dom.createSvgElement("path",{width:Blockly.CursorSvg.CURSOR_WIDTH,height:Blockly.CursorSvg.CURSOR_HEIGHT,transform:"",style:"display: none;",fill:a},this.cursorSvg_);this.cursorBlock_=Blockly.utils.dom.createSvgElement("path",{width:Blockly.CursorSvg.CURSOR_WIDTH,height:Blockly.CursorSvg.CURSOR_HEIGHT,transform:"",
-style:"display: none;",fill:"none",stroke:a,"stroke-width":"4"},this.cursorSvg_);this.isMarker_||(Blockly.utils.dom.createSvgElement("animate",{attributeType:"XML",attributeName:"fill",dur:"1s",values:Blockly.CursorSvg.CURSOR_COLOR+";transparent;transparent;",repeatCount:"indefinite"},this.cursorSvgLine_),Blockly.utils.dom.createSvgElement("animate",{attributeType:"XML",attributeName:"fill",dur:"1s",values:Blockly.CursorSvg.CURSOR_COLOR+";transparent;transparent;",repeatCount:"indefinite"},this.cursorInput_),
-Blockly.utils.dom.createSvgElement("animate",{attributeType:"XML",attributeName:"stroke",dur:"1s",values:Blockly.CursorSvg.CURSOR_COLOR+";transparent;transparent;",repeatCount:"indefinite"},this.cursorBlock_));return this.cursorSvg_};Blockly.CursorSvg.prototype.dispose=function(){this.svgGroup_&&Blockly.utils.dom.removeNode(this.svgGroup_)};Blockly.blockAnimations={};Blockly.blockAnimations.disconnectPid_=0;Blockly.blockAnimations.disconnectGroup_=null;Blockly.blockAnimations.disposeUiEffect=function(a){var b=a.workspace,c=a.getSvgRoot();b.getAudioManager().play("delete");a=b.getSvgXY(c);c=c.cloneNode(!0);c.translateX_=a.x;c.translateY_=a.y;c.setAttribute("transform","translate("+a.x+","+a.y+")");b.getParentSvg().appendChild(c);c.bBox_=c.getBBox();Blockly.blockAnimations.disposeUiStep_(c,b.RTL,new Date,b.scale)};
+return b+a.toDevString()};Blockly.Extensions={};Blockly.Extensions.ALL_={};Blockly.Extensions.register=function(a,b){if("string"!=typeof a||""==a.trim())throw Error('Error: Invalid extension name "'+a+'"');if(Blockly.Extensions.ALL_[a])throw Error('Error: Extension "'+a+'" is already registered.');if("function"!=typeof b)throw Error('Error: Extension "'+a+'" must be a function');Blockly.Extensions.ALL_[a]=b};
+Blockly.Extensions.registerMixin=function(a,b){if(!b||"object"!=typeof b)throw Error('Error: Mixin "'+a+'" must be a object');Blockly.Extensions.register(a,function(){this.mixin(b)})};
+Blockly.Extensions.registerMutator=function(a,b,c,d){var e='Error when registering mutator "'+a+'": ';Blockly.Extensions.checkHasFunction_(e,b.domToMutation,"domToMutation");Blockly.Extensions.checkHasFunction_(e,b.mutationToDom,"mutationToDom");var f=Blockly.Extensions.checkMutatorDialog_(b,e);if(c&&"function"!=typeof c)throw Error('Extension "'+a+'" is not a function');Blockly.Extensions.register(a,function(){if(f){if(!Blockly.Mutator)throw Error(e+"Missing require for Blockly.Mutator");this.setMutator(new Blockly.Mutator(d))}this.mixin(b);
+c&&c.apply(this)})};
+Blockly.Extensions.apply=function(a,b,c){var d=Blockly.Extensions.ALL_[a];if("function"!=typeof d)throw Error('Error: Extension "'+a+'" not found.');if(c)Blockly.Extensions.checkNoMutatorProperties_(a,b);else var e=Blockly.Extensions.getMutatorProperties_(b);d.apply(b);if(c)Blockly.Extensions.checkBlockHasMutatorProperties_('Error after applying mutator "'+a+'": ',b);else if(!Blockly.Extensions.mutatorPropertiesMatch_(e,b))throw Error('Error when applying extension "'+a+'": mutation properties changed when applying a non-mutator extension.');};
+Blockly.Extensions.checkHasFunction_=function(a,b,c){if(!b)throw Error(a+'missing required property "'+c+'"');if("function"!=typeof b)throw Error(a+'" required property "'+c+'" must be a function');};Blockly.Extensions.checkNoMutatorProperties_=function(a,b){if(Blockly.Extensions.getMutatorProperties_(b).length)throw Error('Error: tried to apply mutation "'+a+'" to a block that already has mutator functions.  Block id: '+b.id);};
+Blockly.Extensions.checkMutatorDialog_=function(a,b){var c=void 0!==a.compose,d=void 0!==a.decompose;if(c&&d){if("function"!=typeof a.compose)throw Error(b+"compose must be a function.");if("function"!=typeof a.decompose)throw Error(b+"decompose must be a function.");return!0}if(c||d)throw Error(b+'Must have both or neither of "compose" and "decompose"');return!1};
+Blockly.Extensions.checkBlockHasMutatorProperties_=function(a,b){if("function"!=typeof b.domToMutation)throw Error(a+'Applying a mutator didn\'t add "domToMutation"');if("function"!=typeof b.mutationToDom)throw Error(a+'Applying a mutator didn\'t add "mutationToDom"');Blockly.Extensions.checkMutatorDialog_(b,a)};
+Blockly.Extensions.getMutatorProperties_=function(a){var b=[];void 0!==a.domToMutation&&b.push(a.domToMutation);void 0!==a.mutationToDom&&b.push(a.mutationToDom);void 0!==a.compose&&b.push(a.compose);void 0!==a.decompose&&b.push(a.decompose);return b};Blockly.Extensions.mutatorPropertiesMatch_=function(a,b){var c=Blockly.Extensions.getMutatorProperties_(b);if(c.length!=a.length)return!1;for(var d=0;d<c.length;d++)if(a[d]!=c[d])return!1;return!0};
+Blockly.Extensions.buildTooltipForDropdown=function(a,b){var c=[];"object"==typeof document&&Blockly.utils.runAfterPageLoad(function(){for(var a in b)Blockly.utils.checkMessageReferences(b[a])});return function(){this.type&&-1===c.indexOf(this.type)&&(Blockly.Extensions.checkDropdownOptionsInTable_(this,a,b),c.push(this.type));this.setTooltip(function(){var d=this.getFieldValue(a),e=b[d];null==e?-1===c.indexOf(this.type)&&(d="No tooltip mapping for value "+d+" of field "+a,null!=this.type&&(d+=" of block type "+
+this.type),console.warn(d+".")):e=Blockly.utils.replaceMessageReferences(e);return e}.bind(this))}};Blockly.Extensions.checkDropdownOptionsInTable_=function(a,b,c){var d=a.getField(b);if(!d.isOptionListDynamic()){d=d.getOptions();for(var e=0;e<d.length;++e){var f=d[e][1];null==c[f]&&console.warn("No tooltip mapping for value "+f+" of field "+b+" of block type "+a.type)}}};
+Blockly.Extensions.buildTooltipWithFieldText=function(a,b){"object"==typeof document&&Blockly.utils.runAfterPageLoad(function(){Blockly.utils.checkMessageReferences(a)});return function(){this.setTooltip(function(){var c=this.getField(b);return Blockly.utils.replaceMessageReferences(a).replace("%1",c?c.getText():"")}.bind(this))}};
+Blockly.Extensions.extensionParentTooltip_=function(){this.tooltipWhenNotConnected_=this.tooltip;this.setTooltip(function(){var a=this.getParent();return a&&a.getInputsInline()&&a.tooltip||this.tooltipWhenNotConnected_}.bind(this))};Blockly.Extensions.register("parent_tooltip_when_inline",Blockly.Extensions.extensionParentTooltip_);Blockly.blockAnimations={};Blockly.blockAnimations.disconnectPid_=0;Blockly.blockAnimations.disconnectGroup_=null;Blockly.blockAnimations.disposeUiEffect=function(a){var b=a.workspace,c=a.getSvgRoot();b.getAudioManager().play("delete");a=b.getSvgXY(c);c=c.cloneNode(!0);c.translateX_=a.x;c.translateY_=a.y;c.setAttribute("transform","translate("+a.x+","+a.y+")");b.getParentSvg().appendChild(c);c.bBox_=c.getBBox();Blockly.blockAnimations.disposeUiStep_(c,b.RTL,new Date,b.scale)};
 Blockly.blockAnimations.disposeUiStep_=function(a,b,c,d){var e=(new Date-c)/150;1<e?Blockly.utils.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(Blockly.blockAnimations.disposeUiStep_,10,a,b,c,d))};
 Blockly.blockAnimations.connectionUiEffect=function(a){var b=a.workspace,c=b.scale;b.getAudioManager().play("click");if(!(1>c)){var d=b.getSvgXY(a.getSvgRoot());a.outputConnection?(d.x+=(a.RTL?3:-3)*c,d.y+=13*c):a.previousConnection&&(d.x+=(a.RTL?-23:23)*c,d.y+=3*c);a=Blockly.utils.dom.createSvgElement("circle",{cx:d.x,cy:d.y,r:0,fill:"none",stroke:"#888","stroke-width":10},b.getParentSvg());Blockly.blockAnimations.connectionUiStep_(a,new Date,c)}};
 Blockly.blockAnimations.connectionUiStep_=function(a,b,c){var d=(new Date-b)/150;1<d?Blockly.utils.dom.removeNode(a):(a.setAttribute("r",25*d*c),a.style.opacity=1-d,Blockly.blockAnimations.disconnectPid_=setTimeout(Blockly.blockAnimations.connectionUiStep_,10,a,b,c))};
@@ -310,7 +294,10 @@ Blockly.BubbleDragger.prototype.maybeDeleteBubble_=function(){var a=this.workspa
 Blockly.BubbleDragger.prototype.updateCursorDuringBubbleDrag_=function(){this.wouldDeleteBubble_=this.deleteArea_!=Blockly.DELETE_AREA_NONE;var a=this.workspace_.trashcan;this.wouldDeleteBubble_?(this.draggingBubble_.setDeleteStyle(!0),this.deleteArea_==Blockly.DELETE_AREA_TRASH&&a&&a.setOpen_(!0)):(this.draggingBubble_.setDeleteStyle(!1),a&&a.setOpen_(!1))};
 Blockly.BubbleDragger.prototype.endBubbleDrag=function(a,b){this.dragBubble(a,b);var c=this.pixelsToWorkspaceUnits_(b);c=Blockly.utils.Coordinate.sum(this.startXY_,c);this.draggingBubble_.moveTo(c.x,c.y);this.maybeDeleteBubble_()||(this.dragSurface_&&this.dragSurface_.clearAndHide(this.workspace_.getBubbleCanvas()),this.draggingBubble_.setDragging&&this.draggingBubble_.setDragging(!1),this.fireMoveEvent_());this.workspace_.setResizesEnabled(!0);this.workspace_.toolbox_&&(c=this.draggingBubble_.isDeletable()?
 "blocklyToolboxDelete":"blocklyToolboxGrab",this.workspace_.toolbox_.removeStyle(c));Blockly.Events.setGroup(!1)};Blockly.BubbleDragger.prototype.fireMoveEvent_=function(){if(this.draggingBubble_.isComment){var a=new Blockly.Events.CommentMove(this.draggingBubble_);a.setOldCoordinate(this.startXY_);a.recordNew();Blockly.Events.fire(a)}};
-Blockly.BubbleDragger.prototype.pixelsToWorkspaceUnits_=function(a){a=new Blockly.utils.Coordinate(a.x/this.workspace_.scale,a.y/this.workspace_.scale);this.workspace_.isMutator&&a.scale(1/this.workspace_.options.parentWorkspace.scale);return a};Blockly.BubbleDragger.prototype.moveToDragSurface_=function(){this.draggingBubble_.moveTo(0,0);this.dragSurface_.translateSurface(this.startXY_.x,this.startXY_.y);this.dragSurface_.setBlocksAndShow(this.draggingBubble_.getSvgRoot())};Blockly.WorkspaceDragger=function(a){this.workspace_=a;this.startScrollXY_=new Blockly.utils.Coordinate(a.scrollX,a.scrollY)};Blockly.WorkspaceDragger.prototype.dispose=function(){this.workspace_=null};Blockly.WorkspaceDragger.prototype.startDrag=function(){Blockly.selected&&Blockly.selected.unselect();this.workspace_.setupDragSurface()};Blockly.WorkspaceDragger.prototype.endDrag=function(a){this.drag(a);this.workspace_.resetDragSurface()};
+Blockly.BubbleDragger.prototype.pixelsToWorkspaceUnits_=function(a){a=new Blockly.utils.Coordinate(a.x/this.workspace_.scale,a.y/this.workspace_.scale);this.workspace_.isMutator&&a.scale(1/this.workspace_.options.parentWorkspace.scale);return a};Blockly.BubbleDragger.prototype.moveToDragSurface_=function(){this.draggingBubble_.moveTo(0,0);this.dragSurface_.translateSurface(this.startXY_.x,this.startXY_.y);this.dragSurface_.setBlocksAndShow(this.draggingBubble_.getSvgRoot())};Blockly.constants={};Blockly.LINE_MODE_MULTIPLIER=40;Blockly.PAGE_MODE_MULTIPLIER=125;Blockly.DRAG_RADIUS=5;Blockly.FLYOUT_DRAG_RADIUS=10;Blockly.SNAP_RADIUS=28;Blockly.CONNECTING_SNAP_RADIUS=Blockly.SNAP_RADIUS;Blockly.CURRENT_CONNECTION_PREFERENCE=8;Blockly.INSERTION_MARKER_COLOUR="#000000";Blockly.BUMP_DELAY=250;Blockly.BUMP_RANDOMNESS=10;Blockly.COLLAPSE_CHARS=30;Blockly.LONGPRESS=750;Blockly.SOUND_LIMIT=100;Blockly.DRAG_STACK=!0;Blockly.HSV_SATURATION=.45;Blockly.HSV_VALUE=.65;
+Blockly.SPRITE={width:96,height:124,url:"sprites.png"};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_BEGIN=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.TOOLBOX_AT_TOP=0;Blockly.TOOLBOX_AT_BOTTOM=1;Blockly.TOOLBOX_AT_LEFT=2;Blockly.TOOLBOX_AT_RIGHT=3;Blockly.DELETE_AREA_NONE=null;Blockly.DELETE_AREA_TRASH=1;Blockly.DELETE_AREA_TOOLBOX=2;Blockly.VARIABLE_CATEGORY_NAME="VARIABLE";Blockly.VARIABLE_DYNAMIC_CATEGORY_NAME="VARIABLE_DYNAMIC";Blockly.PROCEDURE_CATEGORY_NAME="PROCEDURE";
+Blockly.RENAME_VARIABLE_ID="RENAME_VARIABLE_ID";Blockly.DELETE_VARIABLE_ID="DELETE_VARIABLE_ID";Blockly.WorkspaceDragger=function(a){this.workspace_=a;this.startScrollXY_=new Blockly.utils.Coordinate(a.scrollX,a.scrollY)};Blockly.WorkspaceDragger.prototype.dispose=function(){this.workspace_=null};Blockly.WorkspaceDragger.prototype.startDrag=function(){Blockly.selected&&Blockly.selected.unselect();this.workspace_.setupDragSurface()};Blockly.WorkspaceDragger.prototype.endDrag=function(a){this.drag(a);this.workspace_.resetDragSurface()};
 Blockly.WorkspaceDragger.prototype.drag=function(a){a=Blockly.utils.Coordinate.sum(this.startScrollXY_,a);this.workspace_.scroll(a.x,a.y)};Blockly.FlyoutDragger=function(a){Blockly.FlyoutDragger.superClass_.constructor.call(this,a.getWorkspace());this.scrollbar_=a.scrollbar_;this.horizontalLayout_=a.horizontalLayout_};Blockly.utils.object.inherits(Blockly.FlyoutDragger,Blockly.WorkspaceDragger);Blockly.FlyoutDragger.prototype.drag=function(a){a=Blockly.utils.Coordinate.sum(this.startScrollXY_,a);this.horizontalLayout_?this.scrollbar_.set(-a.x):this.scrollbar_.set(-a.y)};Blockly.Tooltip={};Blockly.Tooltip.visible=!1;Blockly.Tooltip.blocked_=!1;Blockly.Tooltip.LIMIT=50;Blockly.Tooltip.mouseOutPid_=0;Blockly.Tooltip.showPid_=0;Blockly.Tooltip.lastX_=0;Blockly.Tooltip.lastY_=0;Blockly.Tooltip.element_=null;Blockly.Tooltip.poisonedElement_=null;Blockly.Tooltip.OFFSET_X=0;Blockly.Tooltip.OFFSET_Y=10;Blockly.Tooltip.RADIUS_OK=10;Blockly.Tooltip.HOVER_MS=750;Blockly.Tooltip.MARGINS=5;Blockly.Tooltip.DIV=null;
 Blockly.Tooltip.createDom=function(){Blockly.Tooltip.DIV||(Blockly.Tooltip.DIV=document.createElement("div"),Blockly.Tooltip.DIV.className="blocklyTooltipDiv",document.body.appendChild(Blockly.Tooltip.DIV))};Blockly.Tooltip.bindMouseEvents=function(a){Blockly.bindEvent_(a,"mouseover",null,Blockly.Tooltip.onMouseOver_);Blockly.bindEvent_(a,"mouseout",null,Blockly.Tooltip.onMouseOut_);a.addEventListener("mousemove",Blockly.Tooltip.onMouseMove_,!1)};
 Blockly.Tooltip.onMouseOver_=function(a){if(!Blockly.Tooltip.blocked_){for(a=a.currentTarget;"string"!=typeof a.tooltip&&"function"!=typeof a.tooltip;)a=a.tooltip;Blockly.Tooltip.element_!=a&&(Blockly.Tooltip.hide(),Blockly.Tooltip.poisonedElement_=null,Blockly.Tooltip.element_=a);clearTimeout(Blockly.Tooltip.mouseOutPid_)}};
@@ -331,7 +318,7 @@ Blockly.Gesture.prototype.updateIsDragging_=function(){if(this.calledUpdateIsDra
 Blockly.Gesture.prototype.startDraggingBlock_=function(){this.blockDragger_=new Blockly.BlockDragger(this.targetBlock_,this.startWorkspace_);this.blockDragger_.startBlockDrag(this.currentDragDeltaXY_,this.healStack_);this.blockDragger_.dragBlock(this.mostRecentEvent_,this.currentDragDeltaXY_)};
 Blockly.Gesture.prototype.startDraggingBubble_=function(){this.bubbleDragger_=new Blockly.BubbleDragger(this.startBubble_,this.startWorkspace_);this.bubbleDragger_.startBubbleDrag();this.bubbleDragger_.dragBubble(this.mostRecentEvent_,this.currentDragDeltaXY_)};
 Blockly.Gesture.prototype.doStart=function(a){Blockly.utils.isTargetInput(a)?this.cancel():(this.hasStarted_=!0,Blockly.blockAnimations.disconnectUiStop(),this.startWorkspace_.updateScreenCalculationsIfScrolled(),this.startWorkspace_.isMutator&&this.startWorkspace_.resize(),this.startWorkspace_.markFocused(),this.mostRecentEvent_=a,Blockly.hideChaff(!!this.flyout_),Blockly.Tooltip.block(),this.targetBlock_&&(!this.targetBlock_.isInFlyout&&a.shiftKey?(Blockly.navigation.enableKeyboardAccessibility(),
-this.creatorWorkspace_.getCursor().setLocation(Blockly.navigation.getTopNode(this.targetBlock_))):this.targetBlock_.select()),Blockly.utils.isRightButton(a)?this.handleRightClick(a):("touchstart"!=a.type.toLowerCase()&&"pointerdown"!=a.type.toLowerCase()||"mouse"==a.pointerType||Blockly.longStart_(a,this),this.mouseDownXY_=new Blockly.utils.Coordinate(a.clientX,a.clientY),this.healStack_=a.altKey||a.ctrlKey||a.metaKey,this.bindMouseEvents(a)))};
+this.creatorWorkspace_.getCursor().setCurNode(Blockly.navigation.getTopNode(this.targetBlock_))):this.targetBlock_.select()),Blockly.utils.isRightButton(a)?this.handleRightClick(a):("touchstart"!=a.type.toLowerCase()&&"pointerdown"!=a.type.toLowerCase()||"mouse"==a.pointerType||Blockly.longStart_(a,this),this.mouseDownXY_=new Blockly.utils.Coordinate(a.clientX,a.clientY),this.healStack_=a.altKey||a.ctrlKey||a.metaKey,this.bindMouseEvents(a)))};
 Blockly.Gesture.prototype.bindMouseEvents=function(a){this.onMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",null,this.handleMove.bind(this));this.onUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",null,this.handleUp.bind(this));a.preventDefault();a.stopPropagation()};
 Blockly.Gesture.prototype.handleMove=function(a){this.updateFromEvent_(a);this.isDraggingWorkspace_?this.workspaceDragger_.drag(this.currentDragDeltaXY_):this.isDraggingBlock_?this.blockDragger_.dragBlock(this.mostRecentEvent_,this.currentDragDeltaXY_):this.isDraggingBubble_&&this.bubbleDragger_.dragBubble(this.mostRecentEvent_,this.currentDragDeltaXY_);a.preventDefault();a.stopPropagation()};
 Blockly.Gesture.prototype.handleUp=function(a){this.updateFromEvent_(a);Blockly.longStop_();this.isEnding_?console.log("Trying to end a gesture recursively."):(this.isEnding_=!0,this.isDraggingBubble_?this.bubbleDragger_.endBubbleDrag(a,this.currentDragDeltaXY_):this.isDraggingBlock_?this.blockDragger_.endBlockDrag(a,this.currentDragDeltaXY_):this.isDraggingWorkspace_?this.workspaceDragger_.endDrag(this.currentDragDeltaXY_):this.isBubbleClick_()?this.doBubbleClick_():this.isFieldClick_()?this.doFieldClick_():
@@ -342,218 +329,11 @@ Blockly.Gesture.prototype.handleWsStart=function(a,b){if(this.hasStarted_)throw
 Blockly.Gesture.prototype.handleBlockStart=function(a,b){if(this.hasStarted_)throw Error("Tried to call gesture.handleBlockStart, but the gesture had already been started.");this.setStartBlock(b);this.mostRecentEvent_=a};Blockly.Gesture.prototype.handleBubbleStart=function(a,b){if(this.hasStarted_)throw Error("Tried to call gesture.handleBubbleStart, but the gesture had already been started.");this.setStartBubble(b);this.mostRecentEvent_=a};
 Blockly.Gesture.prototype.doBubbleClick_=function(){this.startBubble_.setFocus&&this.startBubble_.setFocus();this.startBubble_.select&&this.startBubble_.select()};Blockly.Gesture.prototype.doFieldClick_=function(){this.startField_.showEditor_();this.bringBlockToFront_()};
 Blockly.Gesture.prototype.doBlockClick_=function(){this.flyout_&&this.flyout_.autoClose?this.targetBlock_.isEnabled()&&(Blockly.Events.getGroup()||Blockly.Events.setGroup(!0),this.flyout_.createBlock(this.targetBlock_).scheduleSnapAndBump()):Blockly.Events.fire(new Blockly.Events.Ui(this.startBlock_,"click",void 0,void 0));this.bringBlockToFront_();Blockly.Events.setGroup(!1)};
-Blockly.Gesture.prototype.doWorkspaceClick_=function(a){var b=this.creatorWorkspace_;a.shiftKey?(Blockly.navigation.enableKeyboardAccessibility(),a=new Blockly.utils.Coordinate(a.clientX,a.clientY),a=Blockly.utils.screenToWsCoordinates(b,a),a=Blockly.ASTNode.createWorkspaceNode(b,a),b.getCursor().setLocation(a)):Blockly.selected&&Blockly.selected.unselect()};Blockly.Gesture.prototype.bringBlockToFront_=function(){this.targetBlock_&&!this.flyout_&&this.targetBlock_.bringToFront()};
+Blockly.Gesture.prototype.doWorkspaceClick_=function(a){var b=this.creatorWorkspace_;a.shiftKey?(Blockly.navigation.enableKeyboardAccessibility(),a=new Blockly.utils.Coordinate(a.clientX,a.clientY),a=Blockly.utils.screenToWsCoordinates(b,a),a=Blockly.ASTNode.createWorkspaceNode(b,a),b.getCursor().setCurNode(a)):Blockly.selected&&Blockly.selected.unselect()};Blockly.Gesture.prototype.bringBlockToFront_=function(){this.targetBlock_&&!this.flyout_&&this.targetBlock_.bringToFront()};
 Blockly.Gesture.prototype.setStartField=function(a){if(this.hasStarted_)throw Error("Tried to call gesture.setStartField, but the gesture had already been started.");this.startField_||(this.startField_=a)};Blockly.Gesture.prototype.setStartBubble=function(a){this.startBubble_||(this.startBubble_=a)};Blockly.Gesture.prototype.setStartBlock=function(a){this.startBlock_||this.startBubble_||(this.startBlock_=a,a.isInFlyout&&a!=a.getRootBlock()?this.setTargetBlock_(a.getRootBlock()):this.setTargetBlock_(a))};
 Blockly.Gesture.prototype.setTargetBlock_=function(a){a.isShadow()?this.setTargetBlock_(a.getParent()):this.targetBlock_=a};Blockly.Gesture.prototype.setStartWorkspace_=function(a){this.startWorkspace_||(this.startWorkspace_=a)};Blockly.Gesture.prototype.setStartFlyout_=function(a){this.flyout_||(this.flyout_=a)};Blockly.Gesture.prototype.isBubbleClick_=function(){return!!this.startBubble_&&!this.hasExceededDragRadius_};
 Blockly.Gesture.prototype.isBlockClick_=function(){return!!this.startBlock_&&!this.hasExceededDragRadius_&&!this.isFieldClick_()};Blockly.Gesture.prototype.isFieldClick_=function(){return(this.startField_?this.startField_.isClickable():!1)&&!this.hasExceededDragRadius_&&(!this.flyout_||!this.flyout_.autoClose)};Blockly.Gesture.prototype.isWorkspaceClick_=function(){return!this.startBlock_&&!this.startBubble_&&!this.startField_&&!this.hasExceededDragRadius_};
-Blockly.Gesture.prototype.isDragging=function(){return this.isDraggingWorkspace_||this.isDraggingBlock_||this.isDraggingBubble_};Blockly.Gesture.prototype.hasStarted=function(){return this.hasStarted_};Blockly.Gesture.prototype.getInsertionMarkers=function(){return this.blockDragger_?this.blockDragger_.getInsertionMarkers():[]};Blockly.Gesture.inProgress=function(){for(var a=Blockly.Workspace.getAll(),b=0,c;c=a[b];b++)if(c.currentGesture_)return!0;return!1};Blockly.Grid=function(a,b){this.gridPattern_=a;this.spacing_=b.spacing;this.length_=b.length;this.line2_=(this.line1_=a.firstChild)&&this.line1_.nextSibling;this.snapToGrid_=b.snap};Blockly.Grid.prototype.scale_=1;Blockly.Grid.prototype.dispose=function(){this.gridPattern_=null};Blockly.Grid.prototype.shouldSnap=function(){return this.snapToGrid_};Blockly.Grid.prototype.getSpacing=function(){return this.spacing_};Blockly.Grid.prototype.getPatternId=function(){return this.gridPattern_.id};
-Blockly.Grid.prototype.update=function(a){this.scale_=a;var b=this.spacing_*a||100;this.gridPattern_.setAttribute("width",b);this.gridPattern_.setAttribute("height",b);b=Math.floor(this.spacing_/2)+.5;var c=b-this.length_/2,d=b+this.length_/2;b*=a;c*=a;d*=a;this.setLineAttributes_(this.line1_,a,c,d,b,b);this.setLineAttributes_(this.line2_,a,b,b,c,d)};
-Blockly.Grid.prototype.setLineAttributes_=function(a,b,c,d,e,f){a&&(a.setAttribute("stroke-width",b),a.setAttribute("x1",c),a.setAttribute("y1",e),a.setAttribute("x2",d),a.setAttribute("y2",f))};Blockly.Grid.prototype.moveTo=function(a,b){this.gridPattern_.setAttribute("x",a);this.gridPattern_.setAttribute("y",b);(Blockly.utils.userAgent.IE||Blockly.utils.userAgent.EDGE)&&this.update(this.scale_)};
-Blockly.Grid.createDom=function(a,b,c){a=Blockly.utils.dom.createSvgElement("pattern",{id:"blocklyGridPattern"+a,patternUnits:"userSpaceOnUse"},c);0<b.length&&0<b.spacing?(Blockly.utils.dom.createSvgElement("line",{stroke:b.colour},a),1<b.length&&Blockly.utils.dom.createSvgElement("line",{stroke:b.colour},a)):Blockly.utils.dom.createSvgElement("line",{},a);return 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||null);d=!(!c||!c.getElementsByTagName("category").length);e=a.trashcan;void 0===e&&(e=d);var l=a.maxTrashcanContents;e?void 0===l&&(l=32):l=0;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 m=!!a.rtl,n=a.horizontalLayout;void 0===n&&(n=!1);var p=a.toolboxPosition;p="end"===p?!1:
-!0;p=n?p?Blockly.TOOLBOX_AT_TOP:Blockly.TOOLBOX_AT_BOTTOM:p==m?Blockly.TOOLBOX_AT_RIGHT:Blockly.TOOLBOX_AT_LEFT;var q=a.css;void 0===q&&(q=!0);var r="https://blockly-demo.appspot.com/static/media/";a.media?r=a.media:a.path&&(r=a.path+"media/");var t=void 0===a.oneBasedIndex?!0:!!a.oneBasedIndex,u=a.theme||Blockly.Themes.Classic,v=a.keyMap||Blockly.user.keyMap.createDefaultKeyMap(),w=a.renderer||"geras";this.RTL=m;this.oneBasedIndex=t;this.collapse=f;this.comments=g;this.disable=h;this.readOnly=b;
-this.maxBlocks=a.maxBlocks||Infinity;this.maxInstances=a.maxInstances;this.pathToMedia=r;this.hasCategories=d;this.moveOptions=Blockly.Options.parseMoveOptions(a,d);this.hasScrollbars=this.moveOptions.scrollbars;this.hasTrashcan=e;this.maxTrashcanContents=l;this.hasSounds=k;this.hasCss=q;this.horizontalLayout=n;this.languageTree=c;this.gridOptions=Blockly.Options.parseGridOptions_(a);this.zoomOptions=Blockly.Options.parseZoomOptions_(a);this.toolboxPosition=p;this.theme=u;this.keyMap=v;this.renderer=
-w};Blockly.Options.prototype.parentWorkspace=null;Blockly.Options.prototype.setMetrics=null;Blockly.Options.prototype.getMetrics=null;Blockly.Options.parseMoveOptions=function(a,b){var c=a.move||{},d={};d.scrollbars=void 0===c.scrollbars&&void 0===a.scrollbars?b:!!c.scrollbars||!!a.scrollbars;d.wheel=d.scrollbars&&void 0!==c.wheel?!!c.wheel:!1;d.drag=d.scrollbars?void 0===c.drag?!0:!!c.drag:!1;return d};
-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:Number(a.startScale);b.maxScale=void 0===a.maxScale?3:Number(a.maxScale);b.minScale=void 0===a.minScale?.3:Number(a.minScale);b.scaleSpeed=void 0===a.scaleSpeed?1.2:Number(a.scaleSpeed);return b};
-Blockly.Options.parseGridOptions_=function(a){a=a.grid||{};var b={};b.spacing=Number(a.spacing)||0;b.colour=a.colour||"#888";b.length=Number(a.length)||1;b.snap=0<b.spacing&&!!a.snap;return b};
-Blockly.Options.parseToolboxTree=function(a){if(a){if("string"!=typeof a&&(Blockly.utils.userAgent.IE&&a.outerHTML?a=a.outerHTML:a instanceof Element||(a=null)),"string"==typeof a&&(a=Blockly.Xml.textToDom(a),"xml"!=a.nodeName.toLowerCase()))throw TypeError("Toolbox should be an <xml> document.");}else a=null;return a};Blockly.ScrollbarPair=function(a){this.workspace_=a;this.hScroll=new Blockly.Scrollbar(a,!0,!0,"blocklyMainWorkspaceScrollbar");this.vScroll=new Blockly.Scrollbar(a,!1,!0,"blocklyMainWorkspaceScrollbar");this.corner_=Blockly.utils.dom.createSvgElement("rect",{height:Blockly.Scrollbar.scrollbarThickness,width:Blockly.Scrollbar.scrollbarThickness,"class":"blocklyScrollbarBackground"},null);Blockly.utils.dom.insertAfter(this.corner_,a.getBubbleCanvas())};
-Blockly.ScrollbarPair.prototype.oldHostMetrics_=null;Blockly.ScrollbarPair.prototype.dispose=function(){Blockly.utils.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.position_.x);this.oldHostMetrics_&&this.oldHostMetrics_.viewHeight==a.viewHeight&&this.oldHostMetrics_.absoluteTop==a.absoluteTop||this.corner_.setAttribute("y",
-this.hScroll.position_.y);this.oldHostMetrics_=a}};Blockly.ScrollbarPair.prototype.set=function(a,b){var c={},d=a*this.hScroll.ratio_,e=b*this.vScroll.ratio_,f=this.vScroll.scrollViewSize_;c.x=this.getRatio_(d,this.hScroll.scrollViewSize_);c.y=this.getRatio_(e,f);this.workspace_.setMetrics(c);this.hScroll.setHandlePosition(d);this.vScroll.setHandlePosition(e)};Blockly.ScrollbarPair.prototype.getRatio_=function(a,b){var c=a/b;return isNaN(c)?0:c};
-Blockly.Scrollbar=function(a,b,c,d){this.workspace_=a;this.pair_=c||!1;this.horizontal_=b;this.oldHostMetrics_=null;this.createDom_(d);this.position_=new Blockly.utils.Coordinate(0,0);a=Blockly.Scrollbar.scrollbarThickness;b?(this.svgBackground_.setAttribute("height",a),this.outerSvg_.setAttribute("height",a),this.svgHandle_.setAttribute("height",a-5),this.svgHandle_.setAttribute("y",2.5),this.lengthAttribute_="width",this.positionAttribute_="x"):(this.svgBackground_.setAttribute("width",a),this.outerSvg_.setAttribute("width",
-a),this.svgHandle_.setAttribute("width",a-5),this.svgHandle_.setAttribute("x",2.5),this.lengthAttribute_="height",this.positionAttribute_="y");this.onMouseDownBarWrapper_=Blockly.bindEventWithChecks_(this.svgBackground_,"mousedown",this,this.onMouseDownBar_);this.onMouseDownHandleWrapper_=Blockly.bindEventWithChecks_(this.svgHandle_,"mousedown",this,this.onMouseDownHandle_)};Blockly.Scrollbar.prototype.origin_=new Blockly.utils.Coordinate(0,0);Blockly.Scrollbar.prototype.startDragMouse_=0;
-Blockly.Scrollbar.prototype.scrollViewSize_=0;Blockly.Scrollbar.prototype.handleLength_=0;Blockly.Scrollbar.prototype.handlePosition_=0;Blockly.Scrollbar.prototype.isVisible_=!0;Blockly.Scrollbar.prototype.containerVisible_=!0;Blockly.Scrollbar.scrollbarThickness=15;Blockly.Touch.TOUCH_ENABLED&&(Blockly.Scrollbar.scrollbarThickness=25);
-Blockly.Scrollbar.metricsAreEquivalent_=function(a,b){return a&&b&&a.viewWidth==b.viewWidth&&a.viewHeight==b.viewHeight&&a.viewLeft==b.viewLeft&&a.viewTop==b.viewTop&&a.absoluteTop==b.absoluteTop&&a.absoluteLeft==b.absoluteLeft&&a.contentWidth==b.contentWidth&&a.contentHeight==b.contentHeight&&a.contentLeft==b.contentLeft&&a.contentTop==b.contentTop?!0:!1};
-Blockly.Scrollbar.prototype.dispose=function(){this.cleanUp_();Blockly.unbindEvent_(this.onMouseDownBarWrapper_);this.onMouseDownBarWrapper_=null;Blockly.unbindEvent_(this.onMouseDownHandleWrapper_);this.onMouseDownHandleWrapper_=null;Blockly.utils.dom.removeNode(this.outerSvg_);this.workspace_=this.svgHandle_=this.svgBackground_=this.svgGroup_=this.outerSvg_=null};Blockly.Scrollbar.prototype.setHandleLength_=function(a){this.handleLength_=a;this.svgHandle_.setAttribute(this.lengthAttribute_,this.handleLength_)};
-Blockly.Scrollbar.prototype.setHandlePosition=function(a){this.handlePosition_=a;this.svgHandle_.setAttribute(this.positionAttribute_,this.handlePosition_)};Blockly.Scrollbar.prototype.setScrollViewSize_=function(a){this.scrollViewSize_=a;this.outerSvg_.setAttribute(this.lengthAttribute_,this.scrollViewSize_);this.svgBackground_.setAttribute(this.lengthAttribute_,this.scrollViewSize_)};Blockly.ScrollbarPair.prototype.setContainerVisible=function(a){this.hScroll.setContainerVisible(a);this.vScroll.setContainerVisible(a)};
-Blockly.Scrollbar.prototype.setPosition_=function(a,b){this.position_.x=a;this.position_.y=b;Blockly.utils.dom.setCssTransform(this.outerSvg_,"translate("+(this.position_.x+this.origin_.x)+"px,"+(this.position_.y+this.origin_.y)+"px)")};Blockly.Scrollbar.prototype.resize=function(a){if(!a&&(a=this.workspace_.getMetrics(),!a))return;Blockly.Scrollbar.metricsAreEquivalent_(a,this.oldHostMetrics_)||(this.oldHostMetrics_=a,this.horizontal_?this.resizeHorizontal_(a):this.resizeVertical_(a),this.onScroll_())};
-Blockly.Scrollbar.prototype.resizeHorizontal_=function(a){this.resizeViewHorizontal(a)};Blockly.Scrollbar.prototype.resizeViewHorizontal=function(a){var b=a.viewWidth-1;this.pair_&&(b-=Blockly.Scrollbar.scrollbarThickness);this.setScrollViewSize_(Math.max(0,b));b=a.absoluteLeft+.5;this.pair_&&this.workspace_.RTL&&(b+=Blockly.Scrollbar.scrollbarThickness);this.setPosition_(b,a.absoluteTop+a.viewHeight-Blockly.Scrollbar.scrollbarThickness-.5);this.resizeContentHorizontal(a)};
-Blockly.Scrollbar.prototype.resizeContentHorizontal=function(a){this.pair_||this.setVisible(this.scrollViewSize_<a.contentWidth);this.ratio_=this.scrollViewSize_/a.contentWidth;if(-Infinity==this.ratio_||Infinity==this.ratio_||isNaN(this.ratio_))this.ratio_=0;this.setHandleLength_(Math.max(0,a.viewWidth*this.ratio_));this.setHandlePosition(this.constrainHandle_((a.viewLeft-a.contentLeft)*this.ratio_))};Blockly.Scrollbar.prototype.resizeVertical_=function(a){this.resizeViewVertical(a)};
-Blockly.Scrollbar.prototype.resizeViewVertical=function(a){var b=a.viewHeight-1;this.pair_&&(b-=Blockly.Scrollbar.scrollbarThickness);this.setScrollViewSize_(Math.max(0,b));b=a.absoluteLeft+.5;this.workspace_.RTL||(b+=a.viewWidth-Blockly.Scrollbar.scrollbarThickness-1);this.setPosition_(b,a.absoluteTop+.5);this.resizeContentVertical(a)};
-Blockly.Scrollbar.prototype.resizeContentVertical=function(a){this.pair_||this.setVisible(this.scrollViewSize_<a.contentHeight);this.ratio_=this.scrollViewSize_/a.contentHeight;if(-Infinity==this.ratio_||Infinity==this.ratio_||isNaN(this.ratio_))this.ratio_=0;this.setHandleLength_(Math.max(0,a.viewHeight*this.ratio_));this.setHandlePosition(this.constrainHandle_((a.viewTop-a.contentTop)*this.ratio_))};
-Blockly.Scrollbar.prototype.createDom_=function(a){var b="blocklyScrollbar"+(this.horizontal_?"Horizontal":"Vertical");a&&(b+=" "+a);this.outerSvg_=Blockly.utils.dom.createSvgElement("svg",{"class":b},null);this.svgGroup_=Blockly.utils.dom.createSvgElement("g",{},this.outerSvg_);this.svgBackground_=Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyScrollbarBackground"},this.svgGroup_);a=Math.floor((Blockly.Scrollbar.scrollbarThickness-5)/2);this.svgHandle_=Blockly.utils.dom.createSvgElement("rect",
-{"class":"blocklyScrollbarHandle",rx:a,ry:a},this.svgGroup_);Blockly.utils.dom.insertAfter(this.outerSvg_,this.workspace_.getParentSvg())};Blockly.Scrollbar.prototype.isVisible=function(){return this.isVisible_};Blockly.Scrollbar.prototype.setContainerVisible=function(a){var b=a!=this.containerVisible_;this.containerVisible_=a;b&&this.updateDisplay_()};
-Blockly.Scrollbar.prototype.setVisible=function(a){var b=a!=this.isVisible();if(this.pair_)throw Error("Unable to toggle visibility of paired scrollbars.");this.isVisible_=a;b&&this.updateDisplay_()};Blockly.Scrollbar.prototype.updateDisplay_=function(){this.containerVisible_&&this.isVisible()?this.outerSvg_.setAttribute("display","block"):this.outerSvg_.setAttribute("display","none")};
-Blockly.Scrollbar.prototype.onMouseDownBar_=function(a){this.workspace_.markFocused();Blockly.Touch.clearTouchIdentifier();this.cleanUp_();if(Blockly.utils.isRightButton(a))a.stopPropagation();else{var b=Blockly.utils.mouseToSvg(a,this.workspace_.getParentSvg(),this.workspace_.getInverseScreenCTM());b=this.horizontal_?b.x:b.y;var c=Blockly.utils.getInjectionDivXY_(this.svgHandle_);c=this.horizontal_?c.x:c.y;var d=this.handlePosition_,e=.95*this.handleLength_;b<=c?d-=e:b>=c+this.handleLength_&&(d+=
-e);this.setHandlePosition(this.constrainHandle_(d));this.onScroll_();a.stopPropagation();a.preventDefault()}};
-Blockly.Scrollbar.prototype.onMouseDownHandle_=function(a){this.workspace_.markFocused();this.cleanUp_();Blockly.utils.isRightButton(a)?a.stopPropagation():(this.startDragHandle=this.handlePosition_,this.workspace_.setupDragSurface(),this.startDragMouse_=this.horizontal_?a.clientX:a.clientY,Blockly.Scrollbar.onMouseUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",this,this.onMouseUpHandle_),Blockly.Scrollbar.onMouseMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",this,this.onMouseMoveHandle_),
-a.stopPropagation(),a.preventDefault())};Blockly.Scrollbar.prototype.onMouseMoveHandle_=function(a){this.setHandlePosition(this.constrainHandle_(this.startDragHandle+((this.horizontal_?a.clientX:a.clientY)-this.startDragMouse_)));this.onScroll_()};Blockly.Scrollbar.prototype.onMouseUpHandle_=function(){this.workspace_.resetDragSurface();Blockly.Touch.clearTouchIdentifier();this.cleanUp_()};
-Blockly.Scrollbar.prototype.cleanUp_=function(){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.constrainHandle_=function(a){return a=0>=a||isNaN(a)||this.scrollViewSize_<this.handleLength_?0:Math.min(a,this.scrollViewSize_-this.handleLength_)};Blockly.Scrollbar.prototype.onScroll_=function(){var a=this.handlePosition_/this.scrollViewSize_;isNaN(a)&&(a=0);var b={};this.horizontal_?b.x=a:b.y=a;this.workspace_.setMetrics(b)};Blockly.Scrollbar.prototype.set=function(a){this.setHandlePosition(this.constrainHandle_(a*this.ratio_));this.onScroll_()};
-Blockly.Scrollbar.prototype.setOrigin=function(a,b){this.origin_=new Blockly.utils.Coordinate(a,b)};Blockly.TouchGesture=function(a,b){Blockly.TouchGesture.superClass_.constructor.call(this,a,b);this.isMultiTouch_=!1;this.cachedPoints_={};this.startDistance_=this.previousScale_=0;this.onStartWrapper_=null};Blockly.utils.object.inherits(Blockly.TouchGesture,Blockly.Gesture);Blockly.TouchGesture.ZOOM_IN_MULTIPLIER=5;Blockly.TouchGesture.ZOOM_OUT_MULTIPLIER=6;
-Blockly.TouchGesture.prototype.doStart=function(a){Blockly.TouchGesture.superClass_.doStart.call(this,a);!this.isEnding_&&Blockly.Touch.isTouchEvent(a)&&this.handleTouchStart(a)};
-Blockly.TouchGesture.prototype.bindMouseEvents=function(a){this.onStartWrapper_=Blockly.bindEventWithChecks_(document,"mousedown",null,this.handleStart.bind(this),!0);this.onMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",null,this.handleMove.bind(this),!0);this.onUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",null,this.handleUp.bind(this),!0);a.preventDefault();a.stopPropagation()};
-Blockly.TouchGesture.prototype.handleStart=function(a){!this.isDragging()&&Blockly.Touch.isTouchEvent(a)&&(this.handleTouchStart(a),this.isMultiTouch()&&Blockly.longStop_())};Blockly.TouchGesture.prototype.handleMove=function(a){this.isDragging()?Blockly.Touch.shouldHandleEvent(a)&&Blockly.TouchGesture.superClass_.handleMove.call(this,a):this.isMultiTouch()?(Blockly.Touch.isTouchEvent(a)&&this.handleTouchMove(a),Blockly.longStop_()):Blockly.TouchGesture.superClass_.handleMove.call(this,a)};
-Blockly.TouchGesture.prototype.handleUp=function(a){Blockly.Touch.isTouchEvent(a)&&!this.isDragging()&&this.handleTouchEnd(a);!this.isMultiTouch()||this.isDragging()?Blockly.Touch.shouldHandleEvent(a)&&Blockly.TouchGesture.superClass_.handleUp.call(this,a):(a.preventDefault(),a.stopPropagation(),this.dispose())};Blockly.TouchGesture.prototype.isMultiTouch=function(){return this.isMultiTouch_};
-Blockly.TouchGesture.prototype.dispose=function(){Blockly.TouchGesture.superClass_.dispose.call(this);this.onStartWrapper_&&Blockly.unbindEvent_(this.onStartWrapper_)};Blockly.TouchGesture.prototype.handleTouchStart=function(a){var b=Blockly.Touch.getTouchIdentifierFromEvent(a);this.cachedPoints_[b]=this.getTouchPoint(a);b=Object.keys(this.cachedPoints_);2==b.length&&(this.startDistance_=Blockly.utils.Coordinate.distance(this.cachedPoints_[b[0]],this.cachedPoints_[b[1]]),this.isMultiTouch_=!0,a.preventDefault())};
-Blockly.TouchGesture.prototype.handleTouchMove=function(a){var b=Blockly.Touch.getTouchIdentifierFromEvent(a);this.cachedPoints_[b]=this.getTouchPoint(a);b=Object.keys(this.cachedPoints_);if(2==b.length){b=this.touchScale_=Blockly.utils.Coordinate.distance(this.cachedPoints_[b[0]],this.cachedPoints_[b[1]])/this.startDistance_;if(0<this.previousScale_&&Infinity>this.previousScale_){var c=b-this.previousScale_;c=0<c?c*Blockly.TouchGesture.ZOOM_IN_MULTIPLIER:c*Blockly.TouchGesture.ZOOM_OUT_MULTIPLIER;
-var d=this.startWorkspace_,e=Blockly.utils.mouseToSvg(a,d.getParentSvg(),d.getInverseScreenCTM());d.zoom(e.x,e.y,c)}this.previousScale_=b;a.preventDefault()}};Blockly.TouchGesture.prototype.handleTouchEnd=function(a){a=Blockly.Touch.getTouchIdentifierFromEvent(a);this.cachedPoints_[a]&&delete this.cachedPoints_[a];2>Object.keys(this.cachedPoints_).length&&(this.cachedPoints_={},this.previousScale_=0)};
-Blockly.TouchGesture.prototype.getTouchPoint=function(a){return this.startWorkspace_?new Blockly.utils.Coordinate(a.pageX?a.pageX:a.changedTouches[0].pageX,a.pageY?a.pageY:a.changedTouches[0].pageY):null};Blockly.Trashcan=function(a){this.workspace_=a;this.hasBlocks_=!1;this.contents_=[];0>=this.workspace_.options.maxTrashcanContents||(a={scrollbars:!0,disabledPatternId:this.workspace_.options.disabledPatternId,parentWorkspace:this.workspace_,RTL:this.workspace_.RTL,oneBasedIndex:this.workspace_.options.oneBasedIndex,renderer:this.workspace_.options.renderer},this.workspace_.horizontalLayout?(a.toolboxPosition=this.workspace_.toolboxPosition==Blockly.TOOLBOX_AT_TOP?Blockly.TOOLBOX_AT_BOTTOM:Blockly.TOOLBOX_AT_TOP,
-this.flyout_=new Blockly.HorizontalFlyout(a)):(a.toolboxPosition=this.workspace_.toolboxPosition==Blockly.TOOLBOX_AT_RIGHT?Blockly.TOOLBOX_AT_LEFT:Blockly.TOOLBOX_AT_RIGHT,this.flyout_=new Blockly.VerticalFlyout(a)),this.workspace_.addChangeListener(this.onDelete_()))};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.SPRITE_LEFT_=0;Blockly.Trashcan.prototype.SPRITE_TOP_=32;Blockly.Trashcan.prototype.HAS_BLOCKS_LID_ANGLE=.1;Blockly.Trashcan.prototype.isOpen=!1;Blockly.Trashcan.prototype.minOpenness_=0;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.utils.dom.createSvgElement("g",{"class":"blocklyTrash"},null);var a=String(Math.random()).substring(2);var b=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyTrashBodyClipPath"+a},this.svgGroup_);Blockly.utils.dom.createSvgElement("rect",{width:this.WIDTH_,height:this.BODY_HEIGHT_,y:this.LID_HEIGHT_},b);var c=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,x:-this.SPRITE_LEFT_,height:Blockly.SPRITE.height,
-y:-this.SPRITE_TOP_,"clip-path":"url(#blocklyTrashBodyClipPath"+a+")"},this.svgGroup_);c.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",this.workspace_.options.pathToMedia+Blockly.SPRITE.url);b=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyTrashLidClipPath"+a},this.svgGroup_);Blockly.utils.dom.createSvgElement("rect",{width:this.WIDTH_,height:this.LID_HEIGHT_},b);this.svgLid_=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,x:-this.SPRITE_LEFT_,height:Blockly.SPRITE.height,
-y:-this.SPRITE_TOP_,"clip-path":"url(#blocklyTrashLidClipPath"+a+")"},this.svgGroup_);this.svgLid_.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",this.workspace_.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEventWithChecks_(this.svgGroup_,"mouseup",this,this.click);Blockly.bindEvent_(c,"mouseover",this,this.mouseOver_);Blockly.bindEvent_(c,"mouseout",this,this.mouseOut_);this.animateLid_();return this.svgGroup_};
-Blockly.Trashcan.prototype.init=function(a){0<this.workspace_.options.maxTrashcanContents&&(Blockly.utils.dom.insertAfter(this.flyout_.createDom("svg"),this.workspace_.getParentSvg()),this.flyout_.init(this.workspace_),this.flyout_.isBlockCreatable_=function(){return!0});this.verticalSpacing_=this.MARGIN_BOTTOM_+a;this.setOpen_(!1);return this.verticalSpacing_+this.BODY_HEIGHT_+this.LID_HEIGHT_};
-Blockly.Trashcan.prototype.dispose=function(){this.svgGroup_&&(Blockly.utils.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.workspace_=this.svgLid_=null;clearTimeout(this.lidTask_)};
-Blockly.Trashcan.prototype.position=function(){if(this.verticalSpacing_){var a=this.workspace_.getMetrics();a&&(this.left_=a.toolboxPosition==Blockly.TOOLBOX_AT_LEFT||this.workspace_.horizontalLayout&&!this.workspace_.RTL?a.viewWidth+a.absoluteLeft-this.WIDTH_-this.MARGIN_SIDE_-Blockly.Scrollbar.scrollbarThickness:this.MARGIN_SIDE_+Blockly.Scrollbar.scrollbarThickness,this.top_=a.toolboxPosition==Blockly.TOOLBOX_AT_BOTTOM?this.verticalSpacing_:a.viewHeight+a.absoluteTop-(this.BODY_HEIGHT_+this.LID_HEIGHT_)-
-this.verticalSpacing_,this.svgGroup_.setAttribute("transform","translate("+this.left_+","+this.top_+")"))}};Blockly.Trashcan.prototype.getClientRect=function(){if(!this.svgGroup_)return null;var a=this.svgGroup_.getBoundingClientRect(),b=a.top+this.SPRITE_TOP_-this.MARGIN_HOTSPOT_;a=a.left+this.SPRITE_LEFT_-this.MARGIN_HOTSPOT_;return new Blockly.utils.Rect(b,b+this.LID_HEIGHT_+this.BODY_HEIGHT_+2*this.MARGIN_HOTSPOT_,a,a+this.WIDTH_+2*this.MARGIN_HOTSPOT_)};
-Blockly.Trashcan.prototype.setOpen_=function(a){this.isOpen!=a&&(clearTimeout(this.lidTask_),this.isOpen=a,this.animateLid_())};Blockly.Trashcan.prototype.animateLid_=function(){this.lidOpen_+=this.isOpen?.2:-.2;this.lidOpen_=Math.min(Math.max(this.lidOpen_,this.minOpenness_),1);this.setLidAngle_(45*this.lidOpen_);this.svgGroup_.style.opacity=.4+.4*this.lidOpen_;this.lidOpen_>this.minOpenness_&&1>this.lidOpen_&&(this.lidTask_=setTimeout(this.animateLid_.bind(this),20))};
-Blockly.Trashcan.prototype.setLidAngle_=function(a){var b=this.workspace_.toolboxPosition==Blockly.TOOLBOX_AT_RIGHT||this.workspace_.horizontalLayout&&this.workspace_.RTL;this.svgLid_.setAttribute("transform","rotate("+(b?-a:a)+","+(b?4:this.WIDTH_-4)+","+(this.LID_HEIGHT_-2)+")")};Blockly.Trashcan.prototype.close=function(){this.setOpen_(!1)};Blockly.Trashcan.prototype.click=function(){if(this.hasBlocks_){for(var a=[],b=0,c;c=this.contents_[b];b++)a[b]=Blockly.Xml.textToDom(c);this.flyout_.show(a)}};
-Blockly.Trashcan.prototype.mouseOver_=function(){this.hasBlocks_&&this.setOpen_(!0)};Blockly.Trashcan.prototype.mouseOut_=function(){this.setOpen_(!1)};
-Blockly.Trashcan.prototype.onDelete_=function(){var a=this;return function(b){0>=a.workspace_.options.maxTrashcanContents||b.type!=Blockly.Events.BLOCK_DELETE||"shadow"==b.oldXml.tagName.toLowerCase()||(b=a.cleanBlockXML_(b.oldXml),-1==a.contents_.indexOf(b)&&(a.contents_.unshift(b),a.contents_.length>a.workspace_.options.maxTrashcanContents&&a.contents_.splice(a.workspace_.options.maxTrashcanContents,a.contents_.length-a.workspace_.options.maxTrashcanContents),a.hasBlocks_=!0,a.minOpenness_=a.HAS_BLOCKS_LID_ANGLE,
-a.setLidAngle_(45*a.minOpenness_)))}};Blockly.Trashcan.prototype.cleanBlockXML_=function(a){for(var b=a=a.cloneNode(!0);b;){b.removeAttribute&&(b.removeAttribute("x"),b.removeAttribute("y"),b.removeAttribute("id"));var c=b.firstChild||b.nextSibling;if(!c)for(c=b.parentNode;c;){if(c.nextSibling){c=c.nextSibling;break}c=c.parentNode}b=c}return Blockly.Xml.domToText(a)};Blockly.VariableModel=function(a,b,c,d){this.workspace=a;this.name=b;this.type=c||"";this.id_=d||Blockly.utils.genUid();Blockly.Events.fire(new Blockly.Events.VarCreate(this))};Blockly.VariableModel.prototype.getId=function(){return this.id_};Blockly.VariableModel.compareByName=function(a,b){var c=a.name.toLowerCase(),d=b.name.toLowerCase();return c<d?-1:c==d?0:1};Blockly.Variables={};Blockly.Variables.NAME_TYPE=Blockly.VARIABLE_CATEGORY_NAME;Blockly.Variables.allUsedVarModels=function(a){var b=a.getAllBlocks(!1);a=Object.create(null);for(var c=0;c<b.length;c++){var d=b[c].getVarModels();if(d)for(var e=0;e<d.length;e++){var f=d[e],g=f.getId();g&&(a[g]=f)}}b=[];for(g in a)b.push(a[g]);return b};Blockly.Variables.allUsedVariables=function(){console.warn("Deprecated call to Blockly.Variables.allUsedVariables. Use Blockly.Variables.allUsedVarModels instead.\nIf this is a major issue please file a bug on GitHub.")};
-Blockly.Variables.ALL_DEVELOPER_VARS_WARNINGS_BY_BLOCK_TYPE_={};
-Blockly.Variables.allDeveloperVariables=function(a){a=a.getAllBlocks(!1);for(var b=Object.create(null),c=0,d;d=a[c];c++){var e=d.getDeveloperVariables;!e&&d.getDeveloperVars&&(e=d.getDeveloperVars,Blockly.Variables.ALL_DEVELOPER_VARS_WARNINGS_BY_BLOCK_TYPE_[d.type]||(console.warn("Function getDeveloperVars() deprecated. Use getDeveloperVariables() (block type '"+d.type+"')"),Blockly.Variables.ALL_DEVELOPER_VARS_WARNINGS_BY_BLOCK_TYPE_[d.type]=!0));if(e)for(d=e(),e=0;e<d.length;e++)b[d[e]]=!0}return Object.keys(b)};
-Blockly.Variables.flyoutCategory=function(a){var b=[],c=document.createElement("button");c.setAttribute("text","%{BKY_NEW_VARIABLE}");c.setAttribute("callbackKey","CREATE_VARIABLE");a.registerButtonCallback("CREATE_VARIABLE",function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace())});b.push(c);a=Blockly.Variables.flyoutCategoryBlocks(a);return b=b.concat(a)};
-Blockly.Variables.flyoutCategoryBlocks=function(a){a=a.getVariablesOfType("");var b=[];if(0<a.length){var c=a[a.length-1];if(Blockly.Blocks.variables_set){var d=Blockly.utils.xml.createElement("block");d.setAttribute("type","variables_set");d.setAttribute("gap",Blockly.Blocks.math_change?8:24);d.appendChild(Blockly.Variables.generateVariableFieldDom(c));b.push(d)}Blockly.Blocks.math_change&&(d=Blockly.utils.xml.createElement("block"),d.setAttribute("type","math_change"),d.setAttribute("gap",Blockly.Blocks.variables_get?
-20:8),d.appendChild(Blockly.Variables.generateVariableFieldDom(c)),c=Blockly.Xml.textToDom('<value name="DELTA"><shadow type="math_number"><field name="NUM">1</field></shadow></value>'),d.appendChild(c),b.push(d));if(Blockly.Blocks.variables_get){a.sort(Blockly.VariableModel.compareByName);c=0;for(var e;e=a[c];c++)d=Blockly.utils.xml.createElement("block"),d.setAttribute("type","variables_get"),d.setAttribute("gap",8),d.appendChild(Blockly.Variables.generateVariableFieldDom(e)),b.push(d)}}return b};
-Blockly.Variables.generateUniqueName=function(a){a=a.getAllVariables();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].name.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.Variables.createVariableButtonHandler=function(a,b,c){var d=c||"",e=function(c){Blockly.Variables.promptName(Blockly.Msg.NEW_VARIABLE_TITLE,c,function(c){if(c){var f=Blockly.Variables.nameUsedWithAnyType_(c,a);if(f){var g=c.toLowerCase();if(f.type==d)var l=Blockly.Msg.VARIABLE_ALREADY_EXISTS.replace("%1",g);else l=Blockly.Msg.VARIABLE_ALREADY_EXISTS_FOR_ANOTHER_TYPE,l=l.replace("%1",g).replace("%2",f.type);Blockly.alert(l,function(){e(c)})}else a.createVariable(c,d),b&&b(c)}else b&&b(null)})};
-e("")};Blockly.Variables.createVariable=Blockly.Variables.createVariableButtonHandler;
-Blockly.Variables.renameVariable=function(a,b,c){var d=function(e){var f=Blockly.Msg.RENAME_VARIABLE_TITLE.replace("%1",b.name);Blockly.Variables.promptName(f,e,function(e){if(e){var f=Blockly.Variables.nameUsedWithOtherType_(e,b.type,a);f?(f=Blockly.Msg.VARIABLE_ALREADY_EXISTS_FOR_ANOTHER_TYPE.replace("%1",e.toLowerCase()).replace("%2",f.type),Blockly.alert(f,function(){d(e)})):(a.renameVariableById(b.getId(),e),c&&c(e))}else c&&c(null)})};d("")};
-Blockly.Variables.promptName=function(a,b,c){Blockly.prompt(a,b,function(a){a&&(a=a.replace(/[\s\xa0]+/g," ").trim(),a==Blockly.Msg.RENAME_VARIABLE||a==Blockly.Msg.NEW_VARIABLE)&&(a=null);c(a)})};Blockly.Variables.nameUsedWithOtherType_=function(a,b,c){c=c.getVariableMap().getAllVariables();a=a.toLowerCase();for(var d=0,e;e=c[d];d++)if(e.name.toLowerCase()==a&&e.type!=b)return e;return null};
-Blockly.Variables.nameUsedWithAnyType_=function(a,b){var c=b.getVariableMap().getAllVariables();a=a.toLowerCase();for(var d=0,e;e=c[d];d++)if(e.name.toLowerCase()==a)return e;return null};Blockly.Variables.generateVariableFieldDom=function(a){var b=Blockly.utils.xml.createElement("field");b.setAttribute("name","VAR");b.setAttribute("id",a.getId());b.setAttribute("variabletype",a.type);a=Blockly.utils.xml.createTextNode(a.name);b.appendChild(a);return b};
-Blockly.Variables.getOrCreateVariablePackage=function(a,b,c,d){var e=Blockly.Variables.getVariable(a,b,c,d);e||(e=Blockly.Variables.createVariable_(a,b,c,d));return e};Blockly.Variables.getVariable=function(a,b,c,d){var e=a.getPotentialVariableMap();if(b){var f=a.getVariableById(b);!f&&e&&(f=e.getVariableById(b));if(f)return f}if(c){if(void 0==d)throw Error("Tried to look up a variable by name without a type");f=a.getVariable(c,d);!f&&e&&(f=e.getVariable(c,d))}return f};
-Blockly.Variables.createVariable_=function(a,b,c,d){var e=a.getPotentialVariableMap();c||(c=Blockly.Variables.generateUniqueName(a.isFlyout?a.targetWorkspace:a));return e?e.createVariable(c,d,b):a.createVariable(c,d,b)};Blockly.Variables.getAddedVariables=function(a,b){var c=a.getAllVariables(),d=[];if(b.length!=c.length)for(var e=0;e<c.length;e++){var f=c[e];-1==b.indexOf(f)&&d.push(f)}return d};Blockly.VariablesDynamic={};Blockly.VariablesDynamic.onCreateVariableButtonClick_String=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"String")};Blockly.VariablesDynamic.onCreateVariableButtonClick_Number=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"Number")};Blockly.VariablesDynamic.onCreateVariableButtonClick_Colour=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"Colour")};
-Blockly.VariablesDynamic.flyoutCategory=function(a){var b=[],c=document.createElement("button");c.setAttribute("text",Blockly.Msg.NEW_STRING_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE_STRING");b.push(c);c=document.createElement("button");c.setAttribute("text",Blockly.Msg.NEW_NUMBER_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE_NUMBER");b.push(c);c=document.createElement("button");c.setAttribute("text",Blockly.Msg.NEW_COLOUR_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE_COLOUR");
-b.push(c);a.registerButtonCallback("CREATE_VARIABLE_STRING",Blockly.VariablesDynamic.onCreateVariableButtonClick_String);a.registerButtonCallback("CREATE_VARIABLE_NUMBER",Blockly.VariablesDynamic.onCreateVariableButtonClick_Number);a.registerButtonCallback("CREATE_VARIABLE_COLOUR",Blockly.VariablesDynamic.onCreateVariableButtonClick_Colour);a=Blockly.VariablesDynamic.flyoutCategoryBlocks(a);return b=b.concat(a)};
-Blockly.VariablesDynamic.flyoutCategoryBlocks=function(a){a=a.getAllVariables();var b=[];if(0<a.length){if(Blockly.Blocks.variables_set_dynamic){var c=a[a.length-1],d=Blockly.utils.xml.createElement("block");d.setAttribute("type","variables_set_dynamic");d.setAttribute("gap",24);d.appendChild(Blockly.Variables.generateVariableFieldDom(c));b.push(d)}if(Blockly.Blocks.variables_get_dynamic){a.sort(Blockly.VariableModel.compareByName);c=0;for(var e;e=a[c];c++)d=Blockly.utils.xml.createElement("block"),
-d.setAttribute("type","variables_get_dynamic"),d.setAttribute("gap",8),d.appendChild(Blockly.Variables.generateVariableFieldDom(e)),b.push(d)}}return b};Blockly.WorkspaceAudio=function(a){this.parentWorkspace_=a;this.SOUNDS_=Object.create(null)};Blockly.WorkspaceAudio.prototype.lastSound_=null;Blockly.WorkspaceAudio.prototype.dispose=function(){this.SOUNDS_=this.parentWorkspace_=null};
-Blockly.WorkspaceAudio.prototype.load=function(a,b){if(a.length){try{var c=new Blockly.utils.global.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 Blockly.utils.global.Audio(f);break}}d&&d.play&&(this.SOUNDS_[b]=d)}};
-Blockly.WorkspaceAudio.prototype.preload=function(){for(var a in this.SOUNDS_){var b=this.SOUNDS_[a];b.volume=.01;var c=b.play();void 0!==c?c.then(b.pause)["catch"](function(){}):b.pause();if(Blockly.utils.userAgent.IPAD||Blockly.utils.userAgent.IPHONE)break}};
-Blockly.WorkspaceAudio.prototype.play=function(a,b){var c=this.SOUNDS_[a];if(c){var d=new Date;null!=this.lastSound_&&d-this.lastSound_<Blockly.SOUND_LIMIT||(this.lastSound_=d,c=Blockly.utils.userAgent.IPAD||Blockly.utils.userAgent.ANDROID?c:c.cloneNode(),c.volume=void 0===b?1:b,c.play())}else this.parentWorkspace_&&this.parentWorkspace_.getAudioManager().play(a,b)};Blockly.WorkspaceCommentSvg.render={};Blockly.WorkspaceCommentSvg.RESIZE_SIZE=8;Blockly.WorkspaceCommentSvg.BORDER_RADIUS=3;Blockly.WorkspaceCommentSvg.TEXTAREA_OFFSET=2;Blockly.WorkspaceCommentSvg.TOP_OFFSET=10;Blockly.WorkspaceCommentSvg.prototype.getHeightWidth=function(){return{width:this.getWidth(),height:this.getHeight()}};
-Blockly.WorkspaceCommentSvg.prototype.render=function(){if(!this.rendered_){var a=this.getHeightWidth();this.createEditor_();this.svgGroup_.appendChild(this.foreignObject_);this.svgHandleTarget_=Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyCommentHandleTarget",x:0,y:0});this.svgGroup_.appendChild(this.svgHandleTarget_);this.svgRectTarget_=Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyCommentTarget",x:0,y:0,rx:Blockly.WorkspaceCommentSvg.BORDER_RADIUS,ry:Blockly.WorkspaceCommentSvg.BORDER_RADIUS});
-this.svgGroup_.appendChild(this.svgRectTarget_);this.addResizeDom_();this.isDeletable()&&this.addDeleteDom_();this.setSize_(a.width,a.height);this.textarea_.value=this.content_;this.rendered_=!0;this.resizeGroup_&&Blockly.bindEventWithChecks_(this.resizeGroup_,"mousedown",this,this.resizeMouseDown_);this.isDeletable()&&(Blockly.bindEventWithChecks_(this.deleteGroup_,"mousedown",this,this.deleteMouseDown_),Blockly.bindEventWithChecks_(this.deleteGroup_,"mouseout",this,this.deleteMouseOut_),Blockly.bindEventWithChecks_(this.deleteGroup_,
-"mouseup",this,this.deleteMouseUp_))}};
-Blockly.WorkspaceCommentSvg.prototype.createEditor_=function(){this.foreignObject_=Blockly.utils.dom.createSvgElement("foreignObject",{x:0,y:Blockly.WorkspaceCommentSvg.TOP_OFFSET,"class":"blocklyCommentForeignObject"},null);var a=document.createElementNS(Blockly.utils.dom.HTML_NS,"body");a.setAttribute("xmlns",Blockly.utils.dom.HTML_NS);a.className="blocklyMinimalBody";var b=document.createElementNS(Blockly.utils.dom.HTML_NS,"textarea");b.className="blocklyCommentTextarea";b.setAttribute("dir",this.RTL?
-"RTL":"LTR");a.appendChild(b);this.textarea_=b;this.foreignObject_.appendChild(a);Blockly.bindEventWithChecks_(b,"wheel",this,function(a){a.stopPropagation()});Blockly.bindEventWithChecks_(b,"change",this,function(a){this.setContent(b.value)});return this.foreignObject_};
-Blockly.WorkspaceCommentSvg.prototype.addResizeDom_=function(){this.resizeGroup_=Blockly.utils.dom.createSvgElement("g",{"class":this.RTL?"blocklyResizeSW":"blocklyResizeSE"},this.svgGroup_);var a=Blockly.WorkspaceCommentSvg.RESIZE_SIZE;Blockly.utils.dom.createSvgElement("polygon",{points:"0,x x,x x,0".replace(/x/g,a.toString())},this.resizeGroup_);Blockly.utils.dom.createSvgElement("line",{"class":"blocklyResizeLine",x1:a/3,y1:a-1,x2:a-1,y2:a/3},this.resizeGroup_);Blockly.utils.dom.createSvgElement("line",
-{"class":"blocklyResizeLine",x1:2*a/3,y1:a-1,x2:a-1,y2:2*a/3},this.resizeGroup_)};
-Blockly.WorkspaceCommentSvg.prototype.addDeleteDom_=function(){this.deleteGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyCommentDeleteIcon"},this.svgGroup_);this.deleteIconBorder_=Blockly.utils.dom.createSvgElement("circle",{"class":"blocklyDeleteIconShape",r:"7",cx:"7.5",cy:"7.5"},this.deleteGroup_);Blockly.utils.dom.createSvgElement("line",{x1:"5",y1:"10",x2:"10",y2:"5",stroke:"#fff","stroke-width":"2"},this.deleteGroup_);Blockly.utils.dom.createSvgElement("line",{x1:"5",y1:"5",
-x2:"10",y2:"10",stroke:"#fff","stroke-width":"2"},this.deleteGroup_)};
-Blockly.WorkspaceCommentSvg.prototype.resizeMouseDown_=function(a){this.unbindDragEvents_();Blockly.utils.isRightButton(a)||(this.workspace.startDrag(a,new Blockly.utils.Coordinate(this.workspace.RTL?-this.width_:this.width_,this.height_)),this.onMouseUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",this,this.resizeMouseUp_),this.onMouseMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",this,this.resizeMouseMove_),Blockly.hideChaff());a.stopPropagation()};
-Blockly.WorkspaceCommentSvg.prototype.deleteMouseDown_=function(a){Blockly.utils.dom.addClass(this.deleteIconBorder_,"blocklyDeleteIconHighlighted");a.stopPropagation()};Blockly.WorkspaceCommentSvg.prototype.deleteMouseOut_=function(a){Blockly.utils.dom.removeClass(this.deleteIconBorder_,"blocklyDeleteIconHighlighted")};Blockly.WorkspaceCommentSvg.prototype.deleteMouseUp_=function(a){this.dispose(!0,!0);a.stopPropagation()};
-Blockly.WorkspaceCommentSvg.prototype.unbindDragEvents_=function(){this.onMouseUpWrapper_&&(Blockly.unbindEvent_(this.onMouseUpWrapper_),this.onMouseUpWrapper_=null);this.onMouseMoveWrapper_&&(Blockly.unbindEvent_(this.onMouseMoveWrapper_),this.onMouseMoveWrapper_=null)};Blockly.WorkspaceCommentSvg.prototype.resizeMouseUp_=function(){Blockly.Touch.clearTouchIdentifier();this.unbindDragEvents_()};
-Blockly.WorkspaceCommentSvg.prototype.resizeMouseMove_=function(a){this.autoLayout_=!1;a=this.workspace.moveDrag(a);this.setSize_(this.RTL?-a.x:a.x,a.y)};
-Blockly.WorkspaceCommentSvg.prototype.resizeComment_=function(){var a=this.getHeightWidth(),b=Blockly.WorkspaceCommentSvg.TOP_OFFSET,c=2*Blockly.WorkspaceCommentSvg.TEXTAREA_OFFSET;this.foreignObject_.setAttribute("width",a.width);this.foreignObject_.setAttribute("height",a.height-b);this.RTL&&this.foreignObject_.setAttribute("x",-a.width);this.textarea_.style.width=a.width-c+"px";this.textarea_.style.height=a.height-c-b+"px"};
-Blockly.WorkspaceCommentSvg.prototype.setSize_=function(a,b){a=Math.max(a,45);b=Math.max(b,20+Blockly.WorkspaceCommentSvg.TOP_OFFSET);this.width_=a;this.height_=b;this.svgRect_.setAttribute("width",a);this.svgRect_.setAttribute("height",b);this.svgRectTarget_.setAttribute("width",a);this.svgRectTarget_.setAttribute("height",b);this.svgHandleTarget_.setAttribute("width",a);this.svgHandleTarget_.setAttribute("height",Blockly.WorkspaceCommentSvg.TOP_OFFSET);this.RTL&&(this.svgRect_.setAttribute("transform",
-"scale(-1 1)"),this.svgRectTarget_.setAttribute("transform","scale(-1 1)"));var c=Blockly.WorkspaceCommentSvg.RESIZE_SIZE;this.resizeGroup_&&(this.RTL?(this.resizeGroup_.setAttribute("transform","translate("+(-a+c)+","+(b-c)+") scale(-1 1)"),this.deleteGroup_.setAttribute("transform","translate("+(-a+c)+","+-c+") scale(-1 1)")):(this.resizeGroup_.setAttribute("transform","translate("+(a-c)+","+(b-c)+")"),this.deleteGroup_.setAttribute("transform","translate("+(a-c)+","+-c+")")));this.resizeComment_()};
-Blockly.WorkspaceCommentSvg.prototype.disposeInternal_=function(){this.svgHandleTarget_=this.svgRectTarget_=this.foreignObject_=this.textarea_=null;this.disposed_=!0};Blockly.WorkspaceCommentSvg.prototype.setFocus=function(){var a=this;this.focused_=!0;setTimeout(function(){a.disposed_||(a.textarea_.focus(),a.addFocus(),Blockly.utils.dom.addClass(a.svgRectTarget_,"blocklyCommentTargetFocused"),Blockly.utils.dom.addClass(a.svgHandleTarget_,"blocklyCommentHandleTargetFocused"))},0)};
-Blockly.WorkspaceCommentSvg.prototype.blurFocus=function(){var a=this;this.focused_=!1;setTimeout(function(){a.disposed_||(a.textarea_.blur(),a.removeFocus(),Blockly.utils.dom.removeClass(a.svgRectTarget_,"blocklyCommentTargetFocused"),Blockly.utils.dom.removeClass(a.svgHandleTarget_,"blocklyCommentHandleTargetFocused"))},0)};Blockly.WorkspaceDragSurfaceSvg=function(a){this.container_=a;this.createDom()};Blockly.WorkspaceDragSurfaceSvg.prototype.SVG_=null;Blockly.WorkspaceDragSurfaceSvg.prototype.dragGroup_=null;Blockly.WorkspaceDragSurfaceSvg.prototype.container_=null;
-Blockly.WorkspaceDragSurfaceSvg.prototype.createDom=function(){this.SVG_||(this.SVG_=Blockly.utils.dom.createSvgElement("svg",{xmlns:Blockly.utils.dom.SVG_NS,"xmlns:html":Blockly.utils.dom.HTML_NS,"xmlns:xlink":Blockly.utils.dom.XLINK_NS,version:"1.1","class":"blocklyWsDragSurface blocklyOverflowVisible"},null),this.container_.appendChild(this.SVG_))};
-Blockly.WorkspaceDragSurfaceSvg.prototype.translateSurface=function(a,b){var c=a.toFixed(0),d=b.toFixed(0);this.SVG_.style.display="block";Blockly.utils.dom.setCssTransform(this.SVG_,"translate3d("+c+"px, "+d+"px, 0px)")};Blockly.WorkspaceDragSurfaceSvg.prototype.getSurfaceTranslation=function(){return Blockly.utils.getRelativeXY(this.SVG_)};
-Blockly.WorkspaceDragSurfaceSvg.prototype.clearAndHide=function(a){if(!a)throw Error("Couldn't clear and hide the drag surface: missing new surface.");var b=this.SVG_.childNodes[0],c=this.SVG_.childNodes[1];if(!(b&&c&&Blockly.utils.dom.hasClass(b,"blocklyBlockCanvas")&&Blockly.utils.dom.hasClass(c,"blocklyBubbleCanvas")))throw Error("Couldn't clear and hide the drag surface. A node was missing.");null!=this.previousSibling_?Blockly.utils.dom.insertAfter(b,this.previousSibling_):a.insertBefore(b,a.firstChild);
-Blockly.utils.dom.insertAfter(c,b);this.SVG_.style.display="none";if(this.SVG_.childNodes.length)throw Error("Drag surface was not cleared.");Blockly.utils.dom.setCssTransform(this.SVG_,"");this.previousSibling_=null};
-Blockly.WorkspaceDragSurfaceSvg.prototype.setContentsAndShow=function(a,b,c,d,e,f){if(this.SVG_.childNodes.length)throw Error("Already dragging a block.");this.previousSibling_=c;a.setAttribute("transform","translate(0, 0) scale("+f+")");b.setAttribute("transform","translate(0, 0) scale("+f+")");this.SVG_.setAttribute("width",d);this.SVG_.setAttribute("height",e);this.SVG_.appendChild(a);this.SVG_.appendChild(b);this.SVG_.style.display="block"};
-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(){this.svgGroup_=Blockly.utils.dom.createSvgElement("g",{},null);var a=String(Math.random()).substring(2);this.createZoomOutSvg_(a);this.createZoomInSvg_(a);this.workspace_.isMovable()&&this.createZoomResetSvg_(a);return this.svgGroup_};Blockly.ZoomControls.prototype.init=function(a){this.verticalSpacing_=this.MARGIN_BOTTOM_+a;return this.verticalSpacing_+this.HEIGHT_};
-Blockly.ZoomControls.prototype.dispose=function(){this.svgGroup_&&(Blockly.utils.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.workspace_=null};
-Blockly.ZoomControls.prototype.position=function(){if(this.verticalSpacing_){var a=this.workspace_.getMetrics();a&&(this.left_=a.toolboxPosition==Blockly.TOOLBOX_AT_LEFT||this.workspace_.horizontalLayout&&!this.workspace_.RTL?a.viewWidth+a.absoluteLeft-this.WIDTH_-this.MARGIN_SIDE_-Blockly.Scrollbar.scrollbarThickness:this.MARGIN_SIDE_+Blockly.Scrollbar.scrollbarThickness,a.toolboxPosition==Blockly.TOOLBOX_AT_BOTTOM?(this.top_=this.verticalSpacing_,this.zoomInGroup_.setAttribute("transform","translate(0, 34)"),
-this.zoomResetGroup_&&this.zoomResetGroup_.setAttribute("transform","translate(0, 77)")):(this.top_=a.viewHeight+a.absoluteTop-this.HEIGHT_-this.verticalSpacing_,this.zoomInGroup_.setAttribute("transform","translate(0, 43)"),this.zoomOutGroup_.setAttribute("transform","translate(0, 77)")),this.svgGroup_.setAttribute("transform","translate("+this.left_+","+this.top_+")"))}};
-Blockly.ZoomControls.prototype.createZoomOutSvg_=function(a){var b=this.workspace_;this.zoomOutGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyZoom"},this.svgGroup_);var c=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyZoomoutClipPath"+a},this.zoomOutGroup_);Blockly.utils.dom.createSvgElement("rect",{width:32,height:32},c);a=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,x:-64,y:-92,"clip-path":"url(#blocklyZoomoutClipPath"+
-a+")"},this.zoomOutGroup_);a.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",b.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEventWithChecks_(a,"mousedown",null,function(a){b.markFocused();b.zoomCenter(-1);Blockly.Touch.clearTouchIdentifier();a.stopPropagation();a.preventDefault()})};
-Blockly.ZoomControls.prototype.createZoomInSvg_=function(a){var b=this.workspace_;this.zoomInGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyZoom"},this.svgGroup_);var c=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyZoominClipPath"+a},this.zoomInGroup_);Blockly.utils.dom.createSvgElement("rect",{width:32,height:32},c);a=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,x:-32,y:-92,"clip-path":"url(#blocklyZoominClipPath"+
-a+")"},this.zoomInGroup_);a.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",b.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEventWithChecks_(a,"mousedown",null,function(a){b.markFocused();b.zoomCenter(1);Blockly.Touch.clearTouchIdentifier();a.stopPropagation();a.preventDefault()})};
-Blockly.ZoomControls.prototype.createZoomResetSvg_=function(a){var b=this.workspace_;this.zoomResetGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyZoom"},this.svgGroup_);var c=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyZoomresetClipPath"+a},this.zoomResetGroup_);Blockly.utils.dom.createSvgElement("rect",{width:32,height:32},c);a=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,y:-92,"clip-path":"url(#blocklyZoomresetClipPath"+
-a+")"},this.zoomResetGroup_);a.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",b.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEventWithChecks_(a,"mousedown",null,function(a){b.markFocused();b.setScale(b.options.zoomOptions.startScale);b.beginCanvasTransition();b.scrollCenter();setTimeout(b.endCanvasTransition.bind(b),500);Blockly.Touch.clearTouchIdentifier();a.stopPropagation();a.preventDefault()})};
-Blockly.WorkspaceSvg=function(a,b,c){Blockly.WorkspaceSvg.superClass_.constructor.call(this,a);this.getMetrics=a.getMetrics||Blockly.WorkspaceSvg.getTopLevelWorkspaceMetrics_;this.setMetrics=a.setMetrics||Blockly.WorkspaceSvg.setTopLevelWorkspaceMetrics_;this.connectionDBList=Blockly.ConnectionDB.init();b&&(this.blockDragSurface_=b);c&&(this.workspaceDragSurface_=c);this.useWorkspaceDragSurface_=this.workspaceDragSurface_&&Blockly.utils.is3dSupported();this.highlightedBlocks_=[];this.audioManager_=
-new Blockly.WorkspaceAudio(a.parentWorkspace);this.grid_=this.options.gridPattern?new Blockly.Grid(a.gridPattern,a.gridOptions):null;this.markerSvg_=this.cursorSvg_=null;Blockly.Variables&&Blockly.Variables.flyoutCategory&&this.registerToolboxCategoryCallback(Blockly.VARIABLE_CATEGORY_NAME,Blockly.Variables.flyoutCategory);Blockly.VariablesDynamic&&Blockly.VariablesDynamic.flyoutCategory&&this.registerToolboxCategoryCallback(Blockly.VARIABLE_DYNAMIC_CATEGORY_NAME,Blockly.VariablesDynamic.flyoutCategory);
-Blockly.Procedures&&Blockly.Procedures.flyoutCategory&&this.registerToolboxCategoryCallback(Blockly.PROCEDURE_CATEGORY_NAME,Blockly.Procedures.flyoutCategory);this.renderer_=Blockly.blockRendering.init(this.options.renderer||"geras")};Blockly.utils.object.inherits(Blockly.WorkspaceSvg,Blockly.Workspace);Blockly.WorkspaceSvg.prototype.resizeHandlerWrapper_=null;Blockly.WorkspaceSvg.prototype.rendered=!0;Blockly.WorkspaceSvg.prototype.isVisible_=!0;Blockly.WorkspaceSvg.prototype.isFlyout=!1;
-Blockly.WorkspaceSvg.prototype.isMutator=!1;Blockly.WorkspaceSvg.prototype.resizesEnabled_=!0;Blockly.WorkspaceSvg.prototype.scrollX=0;Blockly.WorkspaceSvg.prototype.scrollY=0;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.flyout_=null;
-Blockly.WorkspaceSvg.prototype.toolbox_=null;Blockly.WorkspaceSvg.prototype.currentGesture_=null;Blockly.WorkspaceSvg.prototype.blockDragSurface_=null;Blockly.WorkspaceSvg.prototype.workspaceDragSurface_=null;Blockly.WorkspaceSvg.prototype.useWorkspaceDragSurface_=!1;Blockly.WorkspaceSvg.prototype.isDragSurfaceActive_=!1;Blockly.WorkspaceSvg.prototype.injectionDiv_=null;Blockly.WorkspaceSvg.prototype.lastRecordedPageScroll_=null;Blockly.WorkspaceSvg.prototype.flyoutButtonCallbacks_={};
-Blockly.WorkspaceSvg.prototype.toolboxCategoryCallbacks_={};Blockly.WorkspaceSvg.prototype.configureContextMenu=null;Blockly.WorkspaceSvg.prototype.targetWorkspace=null;Blockly.WorkspaceSvg.prototype.inverseScreenCTM_=null;Blockly.WorkspaceSvg.prototype.inverseScreenCTMDirty_=!0;Blockly.WorkspaceSvg.prototype.getRenderer=function(){return this.renderer_};
-Blockly.WorkspaceSvg.prototype.setCursor=function(a){this.cursor_&&this.cursor_.getDrawer().dispose();if(this.cursor_=a)this.cursor_.setDrawer(new Blockly.CursorSvg(this,!1)),this.setCursorSvg(this.cursor_.getDrawer().createDom())};Blockly.WorkspaceSvg.prototype.setMarker=function(a){this.marker_&&this.marker_.getDrawer().dispose();if(this.marker_=a)this.marker_.setDrawer(new Blockly.CursorSvg(this,!0)),this.setMarkerSvg(this.marker_.getDrawer().createDom())};
-Blockly.WorkspaceSvg.prototype.setCursorSvg=function(a){a?this.svgGroup_&&(this.svgGroup_.appendChild(a),this.cursorSvg_=a):this.cursorSvg_=null};Blockly.WorkspaceSvg.prototype.setMarkerSvg=function(a){a?this.svgGroup_&&(this.cursorSvg_?this.svgGroup_.insertBefore(a,this.cursorSvg_):this.svgGroup_.appendChild(a),this.markerSvg_=a):this.markerSvg_=null};
-Blockly.WorkspaceSvg.prototype.getInverseScreenCTM=function(){if(this.inverseScreenCTMDirty_){var a=this.getParentSvg().getScreenCTM();a&&(this.inverseScreenCTM_=a.inverse(),this.inverseScreenCTMDirty_=!1)}return this.inverseScreenCTM_};Blockly.WorkspaceSvg.prototype.updateInverseScreenCTM=function(){this.inverseScreenCTMDirty_=!0};Blockly.WorkspaceSvg.prototype.isVisible=function(){return this.isVisible_};
-Blockly.WorkspaceSvg.prototype.getSvgXY=function(a){var b=0,c=0,d=1;if(Blockly.utils.dom.containsNode(this.getCanvas(),a)||Blockly.utils.dom.containsNode(this.getBubbleCanvas(),a))d=this.scale;do{var e=Blockly.utils.getRelativeXY(a);if(a==this.getCanvas()||a==this.getBubbleCanvas())d=1;b+=e.x*d;c+=e.y*d;a=a.parentNode}while(a&&a!=this.getParentSvg());return new Blockly.utils.Coordinate(b,c)};Blockly.WorkspaceSvg.prototype.getOriginOffsetInPixels=function(){return Blockly.utils.getInjectionDivXY_(this.svgBlockCanvas_)};
-Blockly.WorkspaceSvg.prototype.getInjectionDiv=function(){if(!this.injectionDiv_)for(var a=this.svgGroup_;a;){if(-1!=(" "+(a.getAttribute("class")||"")+" ").indexOf(" injectionDiv ")){this.injectionDiv_=a;break}a=a.parentNode}return this.injectionDiv_};Blockly.WorkspaceSvg.prototype.setResizeHandlerWrapper=function(a){this.resizeHandlerWrapper_=a};
-Blockly.WorkspaceSvg.prototype.createDom=function(a){this.svgGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyWorkspace"},null);a&&(this.svgBackground_=Blockly.utils.dom.createSvgElement("rect",{height:"100%",width:"100%","class":a},this.svgGroup_),"blocklyMainBackground"==a&&this.grid_&&(this.svgBackground_.style.fill="url(#"+this.grid_.getPatternId()+")"));this.svgBlockCanvas_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyBlockCanvas"},this.svgGroup_);this.svgBubbleCanvas_=
-Blockly.utils.dom.createSvgElement("g",{"class":"blocklyBubbleCanvas"},this.svgGroup_);this.isFlyout||(Blockly.bindEventWithChecks_(this.svgGroup_,"mousedown",this,this.onMouseDown_,!1,!0),Blockly.bindEventWithChecks_(this.svgGroup_,"wheel",this,this.onMouseWheel_));this.options.hasCategories&&(this.toolbox_=new Blockly.Toolbox(this));this.grid_&&this.grid_.update(this.scale);this.recordDeleteAreas();a=this.cursor_.getDrawer().createDom();this.svgGroup_.appendChild(a);a=this.marker_.getDrawer().createDom();
-this.svgGroup_.appendChild(a);return this.svgGroup_};
-Blockly.WorkspaceSvg.prototype.dispose=function(){this.rendered=!1;this.currentGesture_&&this.currentGesture_.cancel();Blockly.WorkspaceSvg.superClass_.dispose.call(this);this.svgGroup_&&(Blockly.utils.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.svgBubbleCanvas_=this.svgBlockCanvas_=null;this.toolbox_&&(this.toolbox_.dispose(),this.toolbox_=null);this.flyout_&&(this.flyout_.dispose(),this.flyout_=null);this.trashcan&&(this.trashcan.dispose(),this.trashcan=null);this.scrollbar&&(this.scrollbar.dispose(),
-this.scrollbar=null);this.zoomControls_&&(this.zoomControls_.dispose(),this.zoomControls_=null);this.marker_&&this.marker_.getDrawer().dispose();this.getCursor()&&this.getCursor().getDrawer().dispose();this.audioManager_&&(this.audioManager_.dispose(),this.audioManager_=null);this.grid_&&(this.grid_.dispose(),this.grid_=null);this.flyoutButtonCallbacks_=this.toolboxCategoryCallbacks_=this.connectionDBList=null;if(!this.options.parentWorkspace){var a=this.getParentSvg().parentNode;a&&Blockly.utils.dom.removeNode(a)}this.resizeHandlerWrapper_&&
-(Blockly.unbindEvent_(this.resizeHandlerWrapper_),this.resizeHandlerWrapper_=null)};Blockly.WorkspaceSvg.prototype.newBlock=function(a,b){return new Blockly.BlockSvg(this,a,b)};Blockly.WorkspaceSvg.prototype.addTrashcan=function(){this.trashcan=new Blockly.Trashcan(this);var a=this.trashcan.createDom();this.svgGroup_.insertBefore(a,this.svgBlockCanvas_)};
-Blockly.WorkspaceSvg.prototype.addZoomControls=function(){this.zoomControls_=new Blockly.ZoomControls(this);var a=this.zoomControls_.createDom();this.svgGroup_.appendChild(a)};
-Blockly.WorkspaceSvg.prototype.addFlyout_=function(a){var b={disabledPatternId:this.options.disabledPatternId,parentWorkspace:this,RTL:this.RTL,oneBasedIndex:this.options.oneBasedIndex,horizontalLayout:this.horizontalLayout,toolboxPosition:this.options.toolboxPosition,renderer:this.options.renderer};this.flyout_=this.horizontalLayout?new Blockly.HorizontalFlyout(b):new Blockly.VerticalFlyout(b);this.flyout_.autoClose=!1;return this.flyout_.createDom(a)};
-Blockly.WorkspaceSvg.prototype.getFlyout=function(){return this.flyout_?this.flyout_:this.toolbox_?this.toolbox_.flyout_:null};Blockly.WorkspaceSvg.prototype.getToolbox=function(){return this.toolbox_};Blockly.WorkspaceSvg.prototype.updateScreenCalculations_=function(){this.updateInverseScreenCTM();this.recordDeleteAreas()};
-Blockly.WorkspaceSvg.prototype.resizeContents=function(){if(this.resizesEnabled_&&this.rendered){if(this.scrollbar){var a=this.getMetrics();this.scrollbar.hScroll.resizeContentHorizontal(a);this.scrollbar.vScroll.resizeContentVertical(a)}this.updateInverseScreenCTM()}};
-Blockly.WorkspaceSvg.prototype.resize=function(){this.toolbox_&&this.toolbox_.position();this.flyout_&&this.flyout_.position();this.trashcan&&this.trashcan.position();this.zoomControls_&&this.zoomControls_.position();this.scrollbar&&this.scrollbar.resize();this.updateScreenCalculations_()};
-Blockly.WorkspaceSvg.prototype.updateScreenCalculationsIfScrolled=function(){var a=Blockly.utils.getDocumentScroll();Blockly.utils.Coordinate.equals(this.lastRecordedPageScroll_,a)||(this.lastRecordedPageScroll_=a,this.updateScreenCalculations_())};Blockly.WorkspaceSvg.prototype.getCanvas=function(){return this.svgBlockCanvas_};Blockly.WorkspaceSvg.prototype.getBubbleCanvas=function(){return this.svgBubbleCanvas_};
-Blockly.WorkspaceSvg.prototype.getParentSvg=function(){if(this.cachedParentSvg_)return this.cachedParentSvg_;for(var a=this.svgGroup_;a;){if("svg"==a.tagName)return this.cachedParentSvg_=a;a=a.parentNode}return null};
-Blockly.WorkspaceSvg.prototype.translate=function(a,b){if(this.useWorkspaceDragSurface_&&this.isDragSurfaceActive_)this.workspaceDragSurface_.translateSurface(a,b);else{var c="translate("+a+","+b+") scale("+this.scale+")";this.svgBlockCanvas_.setAttribute("transform",c);this.svgBubbleCanvas_.setAttribute("transform",c)}this.blockDragSurface_&&this.blockDragSurface_.translateAndScaleGroup(a,b,this.scale);this.grid_&&this.grid_.moveTo(a,b)};
-Blockly.WorkspaceSvg.prototype.resetDragSurface=function(){if(this.useWorkspaceDragSurface_){this.isDragSurfaceActive_=!1;var a=this.workspaceDragSurface_.getSurfaceTranslation();this.workspaceDragSurface_.clearAndHide(this.svgGroup_);a="translate("+a.x+","+a.y+") scale("+this.scale+")";this.svgBlockCanvas_.setAttribute("transform",a);this.svgBubbleCanvas_.setAttribute("transform",a)}};
-Blockly.WorkspaceSvg.prototype.setupDragSurface=function(){if(this.useWorkspaceDragSurface_&&!this.isDragSurfaceActive_){this.isDragSurfaceActive_=!0;var a=this.svgBlockCanvas_.previousSibling,b=parseInt(this.getParentSvg().getAttribute("width"),10),c=parseInt(this.getParentSvg().getAttribute("height"),10),d=Blockly.utils.getRelativeXY(this.svgBlockCanvas_);this.workspaceDragSurface_.setContentsAndShow(this.svgBlockCanvas_,this.svgBubbleCanvas_,a,b,c,this.scale);this.workspaceDragSurface_.translateSurface(d.x,
-d.y)}};Blockly.WorkspaceSvg.prototype.getBlockDragSurface=function(){return this.blockDragSurface_};Blockly.WorkspaceSvg.prototype.getWidth=function(){var a=this.getMetrics();return a?a.viewWidth/this.scale:0};
-Blockly.WorkspaceSvg.prototype.setVisible=function(a){this.scrollbar&&this.scrollbar.setContainerVisible(a);this.getFlyout()&&this.getFlyout().setContainerVisible(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);this.isVisible_=a};
-Blockly.WorkspaceSvg.prototype.render=function(){for(var a=this.getAllBlocks(!1),b=a.length-1;0<=b;b--)a[b].render(!1);if(this.currentGesture_)for(a=this.currentGesture_.getInsertionMarkers(),b=0;b<a.length;b++)a[b].render(!1)};Blockly.WorkspaceSvg.prototype.traceOn=function(){console.warn("Deprecated call to traceOn, delete this.")};
-Blockly.WorkspaceSvg.prototype.highlightBlock=function(a,b){if(void 0===b){for(var c=0,d;d=this.highlightedBlocks_[c];c++)d.setHighlighted(!1);this.highlightedBlocks_.length=0}if(d=a?this.getBlockById(a):null)(c=void 0===b||b)?-1==this.highlightedBlocks_.indexOf(d)&&this.highlightedBlocks_.push(d):Blockly.utils.arrayRemove(this.highlightedBlocks_,d),d.setHighlighted(c)};
-Blockly.WorkspaceSvg.prototype.paste=function(a){!this.rendered||a.getElementsByTagName("block").length>=this.remainingCapacity()||(this.currentGesture_&&this.currentGesture_.cancel(),"comment"==a.tagName.toLowerCase()?this.pasteWorkspaceComment_(a):this.pasteBlock_(a))};
-Blockly.WorkspaceSvg.prototype.pasteBlock_=function(a){Blockly.Events.disable();try{var b=Blockly.Xml.domToBlock(a,this),c=this.getMarker().getCurNode();if(Blockly.keyboardAccessibilityMode&&c){Blockly.navigation.insertBlock(b,c.getLocation());return}var d=parseInt(a.getAttribute("x"),10),e=parseInt(a.getAttribute("y"),10);if(!isNaN(d)&&!isNaN(e)){this.RTL&&(d=-d);do{a=!1;var f=this.getAllBlocks(!1);c=0;for(var g;g=f[c];c++){var h=g.getRelativeToSurfaceXY();if(1>=Math.abs(d-h.x)&&1>=Math.abs(e-h.y)){a=
-!0;break}}if(!a){var k=b.getConnections_(!1);c=0;for(var l;l=k[c];c++)if(l.closest(Blockly.SNAP_RADIUS,new Blockly.utils.Coordinate(d,e)).connection){a=!0;break}}a&&(d=this.RTL?d-Blockly.SNAP_RADIUS:d+Blockly.SNAP_RADIUS,e+=2*Blockly.SNAP_RADIUS)}while(a);b.moveBy(d,e)}}finally{Blockly.Events.enable()}Blockly.Events.isEnabled()&&!b.isShadow()&&Blockly.Events.fire(new Blockly.Events.BlockCreate(b));b.select()};
-Blockly.WorkspaceSvg.prototype.pasteWorkspaceComment_=function(a){Blockly.Events.disable();try{var b=Blockly.WorkspaceCommentSvg.fromXml(a,this),c=parseInt(a.getAttribute("x"),10),d=parseInt(a.getAttribute("y"),10);isNaN(c)||isNaN(d)||(this.RTL&&(c=-c),b.moveBy(c+50,d+50))}finally{Blockly.Events.enable()}Blockly.Events.isEnabled();b.select()};
-Blockly.WorkspaceSvg.prototype.refreshToolboxSelection=function(){var a=this.isFlyout?this.targetWorkspace:this;a&&!a.currentGesture_&&a.toolbox_&&a.toolbox_.flyout_&&a.toolbox_.refreshSelection()};Blockly.WorkspaceSvg.prototype.renameVariableById=function(a,b){Blockly.WorkspaceSvg.superClass_.renameVariableById.call(this,a,b);this.refreshToolboxSelection()};Blockly.WorkspaceSvg.prototype.deleteVariableById=function(a){Blockly.WorkspaceSvg.superClass_.deleteVariableById.call(this,a);this.refreshToolboxSelection()};
-Blockly.WorkspaceSvg.prototype.createVariable=function(a,b,c){a=Blockly.WorkspaceSvg.superClass_.createVariable.call(this,a,b,c);this.refreshToolboxSelection();return a};Blockly.WorkspaceSvg.prototype.recordDeleteAreas=function(){this.deleteAreaTrash_=this.trashcan&&this.svgGroup_.parentNode?this.trashcan.getClientRect():null;this.deleteAreaToolbox_=this.flyout_?this.flyout_.getClientRect():this.toolbox_?this.toolbox_.getClientRect():null};
-Blockly.WorkspaceSvg.prototype.isDeleteArea=function(a){return this.deleteAreaTrash_&&this.deleteAreaTrash_.contains(a.clientX,a.clientY)?Blockly.DELETE_AREA_TRASH:this.deleteAreaToolbox_&&this.deleteAreaToolbox_.contains(a.clientX,a.clientY)?Blockly.DELETE_AREA_TOOLBOX:Blockly.DELETE_AREA_NONE};Blockly.WorkspaceSvg.prototype.onMouseDown_=function(a){var b=this.getGesture(a);b&&b.handleWsStart(a,this)};
-Blockly.WorkspaceSvg.prototype.startDrag=function(a,b){var c=Blockly.utils.mouseToSvg(a,this.getParentSvg(),this.getInverseScreenCTM());c.x/=this.scale;c.y/=this.scale;this.dragDeltaXY_=Blockly.utils.Coordinate.difference(b,c)};Blockly.WorkspaceSvg.prototype.moveDrag=function(a){a=Blockly.utils.mouseToSvg(a,this.getParentSvg(),this.getInverseScreenCTM());a.x/=this.scale;a.y/=this.scale;return Blockly.utils.Coordinate.sum(this.dragDeltaXY_,a)};
-Blockly.WorkspaceSvg.prototype.isDragging=function(){return null!=this.currentGesture_&&this.currentGesture_.isDragging()};Blockly.WorkspaceSvg.prototype.isDraggable=function(){return this.options.moveOptions&&this.options.moveOptions.drag};
-Blockly.WorkspaceSvg.prototype.isContentBounded=function(){return this.options.moveOptions&&this.options.moveOptions.scrollbars||this.options.moveOptions&&this.options.moveOptions.wheel||this.options.moveOptions&&this.options.moveOptions.drag||this.options.zoomOptions&&this.options.zoomOptions.controls||this.options.zoomOptions&&this.options.zoomOptions.wheel};
-Blockly.WorkspaceSvg.prototype.isMovable=function(){return this.options.moveOptions&&this.options.moveOptions.scrollbars||this.options.moveOptions&&this.options.moveOptions.wheel||this.options.moveOptions&&this.options.moveOptions.drag||this.options.zoomOptions&&this.options.zoomOptions.wheel};
-Blockly.WorkspaceSvg.prototype.onMouseWheel_=function(a){if(Blockly.Gesture.inProgress())a.preventDefault(),a.stopPropagation();else{var b=this.options.zoomOptions&&this.options.zoomOptions.wheel,c=this.options.moveOptions&&this.options.moveOptions.wheel;if(b||c){var d=Blockly.utils.getScrollDeltaPixels(a);!b||!a.ctrlKey&&c?(b=this.scrollX-d.x,c=this.scrollY-d.y,a.shiftKey&&!d.x&&(b=this.scrollX-d.y,c=this.scrollY),this.scroll(b,c)):(d=-d.y/50,b=Blockly.utils.mouseToSvg(a,this.getParentSvg(),this.getInverseScreenCTM()),
-this.zoom(b.x,b.y,d));a.preventDefault()}}};Blockly.WorkspaceSvg.prototype.getBlocksBoundingBox=function(){var a=this.getTopBlocks(!1),b=this.getTopComments(!1);a=a.concat(b);if(!a.length)return new Blockly.utils.Rect(0,0,0,0);b=a[0].getBoundingRectangle();for(var c=1;c<a.length;c++){var d=a[c].getBoundingRectangle();d.top<b.top&&(b.top=d.top);d.bottom>b.bottom&&(b.bottom=d.bottom);d.left<b.left&&(b.left=d.left);d.right>b.right&&(b.right=d.right)}return b};
-Blockly.WorkspaceSvg.prototype.cleanUp=function(){this.setResizesEnabled(!1);Blockly.Events.setGroup(!0);for(var a=this.getTopBlocks(!0),b=0,c=0,d;d=a[c];c++)if(d.isMovable()){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);this.setResizesEnabled(!0)};
-Blockly.WorkspaceSvg.prototype.showContextMenu_=function(a){function b(a){if(a.isDeletable())p=p.concat(a.getDescendants(!1));else{a=a.getChildren(!1);for(var c=0;c<a.length;c++)b(a[c])}}function c(){Blockly.Events.setGroup(f);var a=p.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.utils.genUid(),g=this,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.isMovable()&&(h={},h.text=Blockly.Msg.CLEAN_UP,h.enabled=1<e.length,h.callback=this.cleanUp.bind(this),d.push(h));if(this.options.collapse){for(var k=h=!1,l=0;l<e.length;l++)for(var m=e[l];m;)m.isCollapsed()?h=!0:k=!0,m=m.getNextBlock();var n=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};k={enabled:k};k.text=Blockly.Msg.COLLAPSE_ALL;k.callback=function(){n(!0)};d.push(k);h={enabled:h};h.text=Blockly.Msg.EXPAND_ALL;h.callback=function(){n(!1)};d.push(h)}var p=[];for(l=0;l<e.length;l++)b(e[l]);h={text:1==p.length?Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(p.length)),enabled:0<p.length,callback:function(){g.currentGesture_&&g.currentGesture_.cancel();2>p.length?c():Blockly.confirm(Blockly.Msg.DELETE_ALL_BLOCKS.replace("%1",p.length),function(a){a&&
-c()})}};d.push(h);this.configureContextMenu&&this.configureContextMenu(d);Blockly.ContextMenu.show(a,d,this.RTL)}};
-Blockly.WorkspaceSvg.prototype.updateToolbox=function(a){if(a=Blockly.Options.parseToolboxTree(a)){if(!this.options.languageTree)throw Error("Existing toolbox is null.  Can't create new toolbox.");if(a.getElementsByTagName("category").length){if(!this.toolbox_)throw Error("Existing toolbox has no categories.  Can't change mode.");this.options.languageTree=a;a=this.toolbox_.populate_(a);this.toolbox_.addColour_();this.toolbox_.position();this.toolbox_.tree_.setSelectedItem(a)}else{if(!this.flyout_)throw Error("Existing toolbox has categories.  Can't change mode.");
-this.options.languageTree=a;this.flyout_.show(a.childNodes)}}else if(this.options.languageTree)throw Error("Can't nullify an existing toolbox.");};Blockly.WorkspaceSvg.prototype.markFocused=function(){this.options.parentWorkspace?this.options.parentWorkspace.markFocused():(Blockly.mainWorkspace=this,this.setBrowserFocus())};Blockly.WorkspaceSvg.prototype.setBrowserFocus=function(){document.activeElement&&document.activeElement.blur();try{this.getParentSvg().focus()}catch(a){try{this.getParentSvg().parentNode.setActive()}catch(b){this.getParentSvg().parentNode.focus()}}};
-Blockly.WorkspaceSvg.prototype.zoom=function(a,b,c){if(!this.isFlyout&&!this.isMutator){c=Math.pow(this.options.zoomOptions.scaleSpeed,c);var d=this.scale*c;if(this.scale!=d){d>this.options.zoomOptions.maxScale?c=this.options.zoomOptions.maxScale/this.scale:d<this.options.zoomOptions.minScale&&(c=this.options.zoomOptions.minScale/this.scale);var e=this.getCanvas().getCTM(),f=this.getParentSvg().createSVGPoint();f.x=a;f.y=b;f=f.matrixTransform(e.inverse());a=f.x;b=f.y;e=e.translate(a*(1-c),b*(1-c)).scale(c);
-this.scrollX=e.e;this.scrollY=e.f;this.setScale(d)}}};Blockly.WorkspaceSvg.prototype.zoomCenter=function(a){var b=this.getMetrics();if(this.flyout_){var c=b.svgWidth/2;b=b.svgHeight/2}else c=b.viewWidth/2+b.absoluteLeft,b=b.viewHeight/2+b.absoluteTop;this.zoom(c,b,a)};
-Blockly.WorkspaceSvg.prototype.zoomToFit=function(){if(this.isMovable()){var a=this.getMetrics(),b=a.viewWidth;a=a.viewHeight;var c=this.getBlocksBoundingBox(),d=c.right-c.left;c=c.bottom-c.top;d&&(this.flyout_&&(this.horizontalLayout?(a+=this.flyout_.height_,c+=this.flyout_.height_/this.scale):(b+=this.flyout_.getWidth(),d+=this.flyout_.getWidth()/this.scale)),this.setScale(Math.min(b/d,a/c)),this.scrollCenter())}else console.warn("Tried to move a non-movable workspace. This could result in blocks becoming inaccessible.")};
-Blockly.WorkspaceSvg.prototype.beginCanvasTransition=function(){Blockly.utils.dom.addClass(this.svgBlockCanvas_,"blocklyCanvasTransitioning");Blockly.utils.dom.addClass(this.svgBubbleCanvas_,"blocklyCanvasTransitioning")};Blockly.WorkspaceSvg.prototype.endCanvasTransition=function(){Blockly.utils.dom.removeClass(this.svgBlockCanvas_,"blocklyCanvasTransitioning");Blockly.utils.dom.removeClass(this.svgBubbleCanvas_,"blocklyCanvasTransitioning")};
-Blockly.WorkspaceSvg.prototype.scrollCenter=function(){if(this.isMovable()){var a=this.getMetrics(),b=(a.contentWidth-a.viewWidth)/2,c=(a.contentHeight-a.viewHeight)/2;b=-b-a.contentLeft;c=-c-a.contentTop;this.scroll(b,c)}else console.warn("Tried to move a non-movable workspace. This could result in blocks becoming inaccessible.")};
-Blockly.WorkspaceSvg.prototype.centerOnBlock=function(a){if(this.isMovable()){if(a=this.getBlockById(a)){var b=a.getRelativeToSurfaceXY(),c=a.getHeightWidth(),d=this.scale;a=(b.x+(this.RTL?-1:1)*c.width/2)*d;b=(b.y+c.height/2)*d;c=this.getMetrics();a=-(a-c.contentLeft-c.viewWidth/2)-c.contentLeft;b=-(b-c.contentTop-c.viewHeight/2)-c.contentTop;Blockly.hideChaff();this.scroll(a,b)}}else console.warn("Tried to move a non-movable workspace. This could result in blocks becoming inaccessible.")};
-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;Blockly.hideChaff(!1);this.flyout_&&(this.flyout_.reflow(),this.recordDeleteAreas());this.grid_&&this.grid_.update(this.scale);a=this.getMetrics();this.scrollX-=a.absoluteLeft;this.scrollY-=a.absoluteTop;a.viewLeft+=a.absoluteLeft;
-a.viewTop+=a.absoluteTop;this.scroll(this.scrollX,this.scrollY);this.scrollbar&&(this.flyout_?(this.scrollbar.hScroll.resizeViewHorizontal(a),this.scrollbar.vScroll.resizeViewVertical(a)):(this.scrollbar.hScroll.resizeContentHorizontal(a),this.scrollbar.vScroll.resizeContentVertical(a)))};
-Blockly.WorkspaceSvg.prototype.scroll=function(a,b){Blockly.hideChaff(!0);var c=this.getMetrics(),d=c.contentWidth+c.contentLeft-c.viewWidth,e=c.contentHeight+c.contentTop-c.viewHeight;a=Math.min(a,-c.contentLeft);b=Math.min(b,-c.contentTop);a=Math.max(a,-d);b=Math.max(b,-e);this.scrollX=a;this.scrollY=b;this.scrollbar&&(this.scrollbar.hScroll.setHandlePosition(-(a+c.contentLeft)*this.scrollbar.hScroll.ratio_),this.scrollbar.vScroll.setHandlePosition(-(b+c.contentTop)*this.scrollbar.vScroll.ratio_));
-a+=c.absoluteLeft;b+=c.absoluteTop;this.translate(a,b)};Blockly.WorkspaceSvg.getDimensionsPx_=function(a){var b=0,c=0;a&&(b=a.getWidth(),c=a.getHeight());return{width:b,height:c}};Blockly.WorkspaceSvg.getContentDimensions_=function(a,b){return a.isContentBounded()?Blockly.WorkspaceSvg.getContentDimensionsBounded_(a,b):Blockly.WorkspaceSvg.getContentDimensionsExact_(a)};
-Blockly.WorkspaceSvg.getContentDimensionsExact_=function(a){var b=a.getBlocksBoundingBox(),c=a.scale;a=b.top*c;var d=b.bottom*c,e=b.left*c;b=b.right*c;return{top:a,bottom:d,left:e,right:b,width:b-e,height:d-a}};
-Blockly.WorkspaceSvg.getContentDimensionsBounded_=function(a,b){var c=Blockly.WorkspaceSvg.getContentDimensionsExact_(a),d=b.width,e=b.height,f=d/2,g=e/2,h=Math.min(c.left-f,c.right-d),k=Math.min(c.top-g,c.bottom-e);return{left:h,top:k,height:Math.max(c.bottom+g,c.top+e)-k,width:Math.max(c.right+f,c.left+d)-h}};
-Blockly.WorkspaceSvg.getTopLevelWorkspaceMetrics_=function(){var a=Blockly.WorkspaceSvg.getDimensionsPx_(this.toolbox_),b=Blockly.WorkspaceSvg.getDimensionsPx_(this.flyout_),c=Blockly.svgSize(this.getParentSvg()),d={height:c.height,width:c.width};if(this.toolbox_)if(this.toolboxPosition==Blockly.TOOLBOX_AT_TOP||this.toolboxPosition==Blockly.TOOLBOX_AT_BOTTOM)d.height-=a.height;else{if(this.toolboxPosition==Blockly.TOOLBOX_AT_LEFT||this.toolboxPosition==Blockly.TOOLBOX_AT_RIGHT)d.width-=a.width}else if(this.flyout_)if(this.toolboxPosition==
-Blockly.TOOLBOX_AT_TOP||this.toolboxPosition==Blockly.TOOLBOX_AT_BOTTOM)d.height-=b.height;else if(this.toolboxPosition==Blockly.TOOLBOX_AT_LEFT||this.toolboxPosition==Blockly.TOOLBOX_AT_RIGHT)d.width-=b.width;var e=Blockly.WorkspaceSvg.getContentDimensions_(this,d),f=0;this.toolbox_&&this.toolboxPosition==Blockly.TOOLBOX_AT_LEFT?f=a.width:this.flyout_&&this.toolboxPosition==Blockly.TOOLBOX_AT_LEFT&&(f=b.width);var g=0;this.toolbox_&&this.toolboxPosition==Blockly.TOOLBOX_AT_TOP?g=a.height:this.flyout_&&
-this.toolboxPosition==Blockly.TOOLBOX_AT_TOP&&(g=b.height);return{contentHeight:e.height,contentWidth:e.width,contentTop:e.top,contentLeft:e.left,viewHeight:d.height,viewWidth:d.width,viewTop:-this.scrollY,viewLeft:-this.scrollX,absoluteTop:g,absoluteLeft:f,svgHeight:c.height,svgWidth:c.width,toolboxWidth:a.width,toolboxHeight:a.height,flyoutWidth:b.width,flyoutHeight:b.height,toolboxPosition:this.toolboxPosition}};
-Blockly.WorkspaceSvg.setTopLevelWorkspaceMetrics_=function(a){var b=this.getMetrics();"number"==typeof a.x&&(this.scrollX=-b.contentWidth*a.x-b.contentLeft);"number"==typeof a.y&&(this.scrollY=-b.contentHeight*a.y-b.contentTop);this.translate(this.scrollX+b.absoluteLeft,this.scrollY+b.absoluteTop)};Blockly.WorkspaceSvg.prototype.setResizesEnabled=function(a){var b=!this.resizesEnabled_&&a;this.resizesEnabled_=a;b&&this.resizeContents()};
-Blockly.WorkspaceSvg.prototype.clear=function(){this.setResizesEnabled(!1);Blockly.WorkspaceSvg.superClass_.clear.call(this);this.setResizesEnabled(!0)};Blockly.WorkspaceSvg.prototype.registerButtonCallback=function(a,b){if("function"!=typeof b)throw TypeError("Button callbacks must be functions.");this.flyoutButtonCallbacks_[a]=b};Blockly.WorkspaceSvg.prototype.getButtonCallback=function(a){return(a=this.flyoutButtonCallbacks_[a])?a:null};
-Blockly.WorkspaceSvg.prototype.removeButtonCallback=function(a){this.flyoutButtonCallbacks_[a]=null};Blockly.WorkspaceSvg.prototype.registerToolboxCategoryCallback=function(a,b){if("function"!=typeof b)throw TypeError("Toolbox category callbacks must be functions.");this.toolboxCategoryCallbacks_[a]=b};Blockly.WorkspaceSvg.prototype.getToolboxCategoryCallback=function(a){return this.toolboxCategoryCallbacks_[a]||null};
-Blockly.WorkspaceSvg.prototype.removeToolboxCategoryCallback=function(a){this.toolboxCategoryCallbacks_[a]=null};Blockly.WorkspaceSvg.prototype.getGesture=function(a){var b="mousedown"==a.type||"touchstart"==a.type||"pointerdown"==a.type,c=this.currentGesture_;return c?b&&c.hasStarted()?(console.warn("Tried to start the same gesture twice."),c.cancel(),null):c:b?this.currentGesture_=new Blockly.TouchGesture(a,this):null};
-Blockly.WorkspaceSvg.prototype.clearGesture=function(){this.currentGesture_=null};Blockly.WorkspaceSvg.prototype.cancelCurrentGesture=function(){this.currentGesture_&&this.currentGesture_.cancel()};Blockly.WorkspaceSvg.prototype.getAudioManager=function(){return this.audioManager_};Blockly.WorkspaceSvg.prototype.getGrid=function(){return this.grid_};Blockly.Mutator=function(a){Blockly.Mutator.superClass_.constructor.call(this,null);this.quarkNames_=a};Blockly.utils.object.inherits(Blockly.Mutator,Blockly.Icon);Blockly.Mutator.prototype.workspaceWidth_=0;Blockly.Mutator.prototype.workspaceHeight_=0;
-Blockly.Mutator.prototype.drawIcon_=function(a){Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyIconShape",rx:"4",ry:"4",height:"16",width:"16"},a);Blockly.utils.dom.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.utils.dom.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.utils.dom.createSvgElement("svg",{x:Blockly.Bubble.BORDER_WIDTH,y:Blockly.Bubble.BORDER_WIDTH},null);if(this.quarkNames_.length)for(var a=Blockly.utils.xml.createElement("xml"),b=0,c;c=this.quarkNames_[b];b++){var d=Blockly.utils.xml.createElement("block");d.setAttribute("type",c);a.appendChild(d)}else a=null;a={disable:!1,disabledPatternId:this.block_.workspace.options.disabledPatternId,languageTree:a,parentWorkspace:this.block_.workspace,
-pathToMedia:this.block_.workspace.options.pathToMedia,RTL:this.block_.RTL,toolboxPosition:this.block_.RTL?Blockly.TOOLBOX_AT_RIGHT:Blockly.TOOLBOX_AT_LEFT,horizontalLayout:!1,getMetrics:this.getFlyoutMetrics_.bind(this),setMetrics:null};this.workspace_=new Blockly.WorkspaceSvg(a);this.workspace_.isMutator=!0;this.workspace_.addChangeListener(Blockly.Events.disableOrphans);a=this.workspace_.addFlyout_("g");b=this.workspace_.createDom("blocklyMutatorBackground");b.insertBefore(a,this.workspace_.svgBlockCanvas_);
-this.svgDialog_.appendChild(b);return this.svgDialog_};Blockly.Mutator.prototype.updateEditable=function(){this.block_.isInFlyout||(this.block_.isEditable()?this.iconGroup_&&Blockly.utils.dom.removeClass(this.iconGroup_,"blocklyIconGroupReadonly"):(this.setVisible(!1),this.iconGroup_&&Blockly.utils.dom.addClass(this.iconGroup_,"blocklyIconGroupReadonly")));Blockly.Icon.prototype.updateEditable.call(this)};
-Blockly.Mutator.prototype.resizeBubble_=function(){var a=2*Blockly.Bubble.BORDER_WIDTH,b=this.workspace_.getCanvas().getBBox();var 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.iconXY_,null,null);this.bubble_.setSvgId(this.block_.id);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(!1);
-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_.getFlyout().getWidth()+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(a){if(a.type!=Blockly.Events.UI&&(a.type!=Blockly.Events.CHANGE||"disabled"!=a.element)){if(!this.workspace_.isDragging()){a=this.workspace_.getTopBlocks(!1);for(var 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.BlockChange(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();a!=b&&Blockly.keyboardAccessibilityMode&&Blockly.navigation.moveCursorOnBlockMutation(c);this.workspace_.isDragging()||this.resizeBubble_();Blockly.Events.setGroup(!1)}}};
-Blockly.Mutator.prototype.getFlyoutMetrics_=function(){return{viewHeight:this.workspaceHeight_,viewWidth:this.workspaceWidth_-this.workspace_.getFlyout().getWidth(),absoluteTop:0,absoluteLeft:this.workspace_.RTL?0:this.workspace_.getFlyout().getWidth()}};Blockly.Mutator.prototype.dispose=function(){this.block_.mutator=null;Blockly.Icon.prototype.dispose.call(this)};
-Blockly.Mutator.prototype.updateBlockStyle=function(){var a=this.workspace_;if(a&&a.getAllBlocks()){for(var b=a.getAllBlocks(),c=0;c<b.length;c++){var d=b[c];d.setStyle(d.getStyleName())}a=a.flyout_.workspace_.getAllBlocks();for(c=0;c<a.length;c++)d=a[c],d.setStyle(d.getStyleName())}};
-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)};Blockly.Mutator.findParentWs=function(a){var b=null;if(a&&a.options){var c=a.options.parentWorkspace;a.isFlyout?c&&c.options&&(b=c.options.parentWorkspace):c&&(b=c)}return b};Blockly.Extensions={};Blockly.Extensions.ALL_={};Blockly.Extensions.register=function(a,b){if("string"!=typeof a||""==a.trim())throw Error('Error: Invalid extension name "'+a+'"');if(Blockly.Extensions.ALL_[a])throw Error('Error: Extension "'+a+'" is already registered.');if("function"!=typeof b)throw Error('Error: Extension "'+a+'" must be a function');Blockly.Extensions.ALL_[a]=b};
-Blockly.Extensions.registerMixin=function(a,b){if(!b||"object"!=typeof b)throw Error('Error: Mixin "'+a+'" must be a object');Blockly.Extensions.register(a,function(){this.mixin(b)})};
-Blockly.Extensions.registerMutator=function(a,b,c,d){var e='Error when registering mutator "'+a+'": ';Blockly.Extensions.checkHasFunction_(e,b.domToMutation,"domToMutation");Blockly.Extensions.checkHasFunction_(e,b.mutationToDom,"mutationToDom");var f=Blockly.Extensions.checkMutatorDialog_(b,e);if(c&&"function"!=typeof c)throw Error('Extension "'+a+'" is not a function');Blockly.Extensions.register(a,function(){f&&this.setMutator(new Blockly.Mutator(d));this.mixin(b);c&&c.apply(this)})};
-Blockly.Extensions.apply=function(a,b,c){var d=Blockly.Extensions.ALL_[a];if("function"!=typeof d)throw Error('Error: Extension "'+a+'" not found.');if(c)Blockly.Extensions.checkNoMutatorProperties_(a,b);else var e=Blockly.Extensions.getMutatorProperties_(b);d.apply(b);if(c)Blockly.Extensions.checkBlockHasMutatorProperties_('Error after applying mutator "'+a+'": ',b);else if(!Blockly.Extensions.mutatorPropertiesMatch_(e,b))throw Error('Error when applying extension "'+a+'": mutation properties changed when applying a non-mutator extension.');
-};Blockly.Extensions.checkHasFunction_=function(a,b,c){if(!b)throw Error(a+'missing required property "'+c+'"');if("function"!=typeof b)throw Error(a+'" required property "'+c+'" must be a function');};Blockly.Extensions.checkNoMutatorProperties_=function(a,b){if(Blockly.Extensions.getMutatorProperties_(b).length)throw Error('Error: tried to apply mutation "'+a+'" to a block that already has mutator functions.  Block id: '+b.id);};
-Blockly.Extensions.checkMutatorDialog_=function(a,b){var c=void 0!==a.compose,d=void 0!==a.decompose;if(c&&d){if("function"!=typeof a.compose)throw Error(b+"compose must be a function.");if("function"!=typeof a.decompose)throw Error(b+"decompose must be a function.");return!0}if(c||d)throw Error(b+'Must have both or neither of "compose" and "decompose"');return!1};
-Blockly.Extensions.checkBlockHasMutatorProperties_=function(a,b){if("function"!=typeof b.domToMutation)throw Error(a+'Applying a mutator didn\'t add "domToMutation"');if("function"!=typeof b.mutationToDom)throw Error(a+'Applying a mutator didn\'t add "mutationToDom"');Blockly.Extensions.checkMutatorDialog_(b,a)};
-Blockly.Extensions.getMutatorProperties_=function(a){var b=[];void 0!==a.domToMutation&&b.push(a.domToMutation);void 0!==a.mutationToDom&&b.push(a.mutationToDom);void 0!==a.compose&&b.push(a.compose);void 0!==a.decompose&&b.push(a.decompose);return b};Blockly.Extensions.mutatorPropertiesMatch_=function(a,b){var c=Blockly.Extensions.getMutatorProperties_(b);if(c.length!=a.length)return!1;for(var d=0;d<c.length;d++)if(a[d]!=c[d])return!1;return!0};
-Blockly.Extensions.buildTooltipForDropdown=function(a,b){var c=[];"object"==typeof document&&Blockly.utils.runAfterPageLoad(function(){for(var a in b)Blockly.utils.checkMessageReferences(b[a])});return function(){this.type&&-1===c.indexOf(this.type)&&(Blockly.Extensions.checkDropdownOptionsInTable_(this,a,b),c.push(this.type));this.setTooltip(function(){var d=this.getFieldValue(a),e=b[d];null==e?-1===c.indexOf(this.type)&&(d="No tooltip mapping for value "+d+" of field "+a,null!=this.type&&(d+=" of block type "+
-this.type),console.warn(d+".")):e=Blockly.utils.replaceMessageReferences(e);return e}.bind(this))}};Blockly.Extensions.checkDropdownOptionsInTable_=function(a,b,c){var d=a.getField(b);if(!d.isOptionListDynamic()){d=d.getOptions();for(var e=0;e<d.length;++e){var f=d[e][1];null==c[f]&&console.warn("No tooltip mapping for value "+f+" of field "+b+" of block type "+a.type)}}};
-Blockly.Extensions.buildTooltipWithFieldText=function(a,b){"object"==typeof document&&Blockly.utils.runAfterPageLoad(function(){Blockly.utils.checkMessageReferences(a)});return function(){this.setTooltip(function(){var c=this.getField(b);return Blockly.utils.replaceMessageReferences(a).replace("%1",c?c.getText():"")}.bind(this))}};
-Blockly.Extensions.extensionParentTooltip_=function(){this.tooltipWhenNotConnected_=this.tooltip;this.setTooltip(function(){var a=this.getParent();return a&&a.getInputsInline()&&a.tooltip||this.tooltipWhenNotConnected_}.bind(this))};Blockly.Extensions.register("parent_tooltip_when_inline",Blockly.Extensions.extensionParentTooltip_);Blockly.Field=function(a,b,c){this.tooltip_=this.validator_=this.value_=null;this.size_=new Blockly.utils.Size(0,0);this.markerSvg_=this.cursorSvg_=null;c&&this.configure_(c);this.setValue(a);b&&this.setValidator(b)};Blockly.Field.BORDER_RECT_DEFAULT_HEIGHT=16;Blockly.Field.TEXT_DEFAULT_HEIGHT=12.5;Blockly.Field.X_PADDING=10;Blockly.Field.Y_PADDING=10;Blockly.Field.DEFAULT_TEXT_OFFSET=Blockly.Field.X_PADDING/2;Blockly.Field.prototype.name=void 0;Blockly.Field.prototype.disposed=!1;
+Blockly.Gesture.prototype.isDragging=function(){return this.isDraggingWorkspace_||this.isDraggingBlock_||this.isDraggingBubble_};Blockly.Gesture.prototype.hasStarted=function(){return this.hasStarted_};Blockly.Gesture.prototype.getInsertionMarkers=function(){return this.blockDragger_?this.blockDragger_.getInsertionMarkers():[]};Blockly.Gesture.inProgress=function(){for(var a=Blockly.Workspace.getAll(),b=0,c;c=a[b];b++)if(c.currentGesture_)return!0;return!1};Blockly.Field=function(a,b,c){this.tooltip_=this.validator_=this.value_=null;this.size_=new Blockly.utils.Size(0,0);this.markerSvg_=this.cursorSvg_=null;c&&this.configure_(c);this.setValue(a);b&&this.setValidator(b)};Blockly.Field.BORDER_RECT_DEFAULT_HEIGHT=16;Blockly.Field.TEXT_DEFAULT_HEIGHT=12.5;Blockly.Field.X_PADDING=10;Blockly.Field.Y_PADDING=10;Blockly.Field.DEFAULT_TEXT_OFFSET=Blockly.Field.X_PADDING/2;Blockly.Field.prototype.name=void 0;Blockly.Field.prototype.disposed=!1;
 Blockly.Field.prototype.maxDisplayLength=50;Blockly.Field.prototype.sourceBlock_=null;Blockly.Field.prototype.isDirty_=!0;Blockly.Field.prototype.visible_=!0;Blockly.Field.prototype.clickTarget_=null;Blockly.Field.NBSP="\u00a0";Blockly.Field.prototype.EDITABLE=!0;Blockly.Field.prototype.SERIALIZABLE=!1;Blockly.Field.prototype.configure_=function(a){var b=a.tooltip;"string"==typeof b&&(b=Blockly.utils.replaceMessageReferences(a.tooltip));b&&this.setTooltip(b)};
 Blockly.Field.prototype.setSourceBlock=function(a){if(this.sourceBlock_)throw Error("Field already bound to a block.");this.sourceBlock_=a};Blockly.Field.prototype.getSourceBlock=function(){return this.sourceBlock_};
 Blockly.Field.prototype.init=function(){this.fieldGroup_||(this.fieldGroup_=Blockly.utils.dom.createSvgElement("g",{},null),this.isVisible()||(this.fieldGroup_.style.display="none"),this.sourceBlock_.getSvgRoot().appendChild(this.fieldGroup_),this.initView(),this.updateEditable(),this.setTooltip(this.tooltip_),this.bindEvents_(),this.initModel())};Blockly.Field.prototype.initView=function(){this.createBorderRect_();this.createTextElement_()};Blockly.Field.prototype.initModel=function(){};
@@ -641,7 +421,8 @@ Blockly.BlockDragSurfaceSvg.prototype.createDom=function(){this.SVG_||(this.SVG_
 Blockly.BlockDragSurfaceSvg.prototype.setBlocksAndShow=function(a){if(this.dragGroup_.childNodes.length)throw Error("Already dragging a block.");this.dragGroup_.appendChild(a);this.SVG_.style.display="block";this.surfaceXY_=new Blockly.utils.Coordinate(0,0)};Blockly.BlockDragSurfaceSvg.prototype.translateAndScaleGroup=function(a,b,c){this.scale_=c;a=a.toFixed(0);b=b.toFixed(0);this.dragGroup_.setAttribute("transform","translate("+a+","+b+") scale("+c+")")};
 Blockly.BlockDragSurfaceSvg.prototype.translateSurfaceInternal_=function(){var a=this.surfaceXY_.x,b=this.surfaceXY_.y;a=a.toFixed(0);b=b.toFixed(0);this.SVG_.style.display="block";Blockly.utils.dom.setCssTransform(this.SVG_,"translate3d("+a+"px, "+b+"px, 0px)")};Blockly.BlockDragSurfaceSvg.prototype.translateSurface=function(a,b){this.surfaceXY_=new Blockly.utils.Coordinate(a*this.scale_,b*this.scale_);this.translateSurfaceInternal_()};
 Blockly.BlockDragSurfaceSvg.prototype.getSurfaceTranslation=function(){var a=Blockly.utils.getRelativeXY(this.SVG_);return new Blockly.utils.Coordinate(a.x/this.scale_,a.y/this.scale_)};Blockly.BlockDragSurfaceSvg.prototype.getGroup=function(){return this.dragGroup_};Blockly.BlockDragSurfaceSvg.prototype.getCurrentBlock=function(){return this.dragGroup_.firstChild};
-Blockly.BlockDragSurfaceSvg.prototype.clearAndHide=function(a){a?a.appendChild(this.getCurrentBlock()):this.dragGroup_.removeChild(this.getCurrentBlock());this.SVG_.style.display="none";if(this.dragGroup_.childNodes.length)throw Error("Drag group was not cleared.");this.surfaceXY_=null};Blockly.blockRendering.IPathObject=function(a){};Blockly.blockRendering.PathObject=function(a){this.svgRoot=a;this.svgPath=Blockly.utils.dom.createSvgElement("path",{"class":"blocklyPath"},this.svgRoot);this.svgPathLight=Blockly.utils.dom.createSvgElement("path",{"class":"blocklyPathLight"},this.svgRoot);this.svgPathDark=Blockly.utils.dom.createSvgElement("path",{"class":"blocklyPathDark",transform:"translate(1,1)"},this.svgRoot)};
+Blockly.BlockDragSurfaceSvg.prototype.clearAndHide=function(a){a?a.appendChild(this.getCurrentBlock()):this.dragGroup_.removeChild(this.getCurrentBlock());this.SVG_.style.display="none";if(this.dragGroup_.childNodes.length)throw Error("Drag group was not cleared.");this.surfaceXY_=null};Blockly.blockRendering={};Blockly.blockRendering.rendererMap_={};Blockly.blockRendering.useDebugger=!1;Blockly.blockRendering.register=function(a,b){if(Blockly.blockRendering.rendererMap_[a])throw Error("Renderer has already been registered.");Blockly.blockRendering.rendererMap_[a]=b};Blockly.blockRendering.startDebugger=function(){Blockly.blockRendering.useDebugger=!0};Blockly.blockRendering.stopDebugger=function(){Blockly.blockRendering.useDebugger=!1};
+Blockly.blockRendering.init=function(a){if(!Blockly.blockRendering.rendererMap_[a])throw Error("Renderer not registered: ",a);var b=function(){b.superClass_.constructor.call(this)};Blockly.utils.object.inherits(b,Blockly.blockRendering.rendererMap_[a]);a=new b;a.init();return a};Blockly.blockRendering.IPathObject=function(a){};Blockly.blockRendering.PathObject=function(a){this.svgRoot=a;this.svgPath=Blockly.utils.dom.createSvgElement("path",{"class":"blocklyPath"},this.svgRoot);this.svgPathLight=Blockly.utils.dom.createSvgElement("path",{"class":"blocklyPathLight"},this.svgRoot);this.svgPathDark=Blockly.utils.dom.createSvgElement("path",{"class":"blocklyPathDark",transform:"translate(1,1)"},this.svgRoot)};
 Blockly.blockRendering.PathObject.prototype.setPaths=function(a){this.svgPath.setAttribute("d",a);this.RTL&&this.svgPath.setAttribute("transform","scale(-1 1)");this.svgPathLight.style.display="none";this.svgPathDark.style.display="none"};Blockly.utils.IdGenerator=function(){};Blockly.utils.IdGenerator.getInstance=function(){Blockly.utils.IdGenerator.instance_||(Blockly.utils.IdGenerator.instance_=new Blockly.utils.IdGenerator);return Blockly.utils.IdGenerator.instance_};Blockly.utils.IdGenerator.prototype.nextId_=0;Blockly.utils.IdGenerator.prototype.getNextUniqueId=function(){return"blockly:"+(this.nextId_++).toString(36)};Blockly.Component=function(){this.rightToLeft_=Blockly.Component.defaultRightToLeft_;this.id_=null;this.inDocument_=!1;this.childIndex_=this.children_=this.parent_=this.element_=null};Blockly.Component.prototype.idGenerator_=Blockly.utils.IdGenerator.getInstance();Blockly.Component.defaultRightToLeft_=!1;
 Blockly.Component.Error={NOT_SUPPORTED:"Method not supported",ALREADY_RENDERED:"Component already rendered",PARENT_UNABLE_TO_BE_SET:"Unable to set parent component",CHILD_INDEX_OUT_OF_BOUNDS:"Child component index out of bounds",NOT_OUR_CHILD:"Child is not in parent component",NOT_IN_DOCUMENT:"Operation not supported while component is not in document"};Blockly.Component.setDefaultRightToLeft=function(a){Blockly.Component.defaultRightToLeft_=a};
 Blockly.Component.prototype.getId=function(){return this.id_||(this.id_=this.idGenerator_.getNextUniqueId())};Blockly.Component.prototype.setId=function(a){this.parent_&&this.parent_.childIndex_&&(delete this.parent_.childIndex_[this.id_],this.parent_.childIndex_[a]=this);this.id_=a};Blockly.Component.prototype.getElement=function(){return this.element_};Blockly.Component.prototype.setElementInternal=function(a){this.element_=a};
@@ -771,15 +552,15 @@ Blockly.user.keyMap.getActionByKeyCode=function(a){return Blockly.user.keyMap.ma
 Blockly.user.keyMap.createSerializedKey=function(a,b){for(var c="",d=Blockly.utils.object.values(Blockly.user.keyMap.modifierKeys),e=0,f;f=b[e];e++)if(-1<d.indexOf(f))c+=f;else throw Error(f+" is not a valid modifier key.");return c+a};
 Blockly.user.keyMap.createDefaultKeyMap=function(){var a={},b=Blockly.user.keyMap.createSerializedKey(Blockly.utils.KeyCodes.K,[Blockly.user.keyMap.modifierKeys.CONTROL]);a[Blockly.utils.KeyCodes.W]=Blockly.navigation.ACTION_PREVIOUS;a[Blockly.utils.KeyCodes.A]=Blockly.navigation.ACTION_OUT;a[Blockly.utils.KeyCodes.S]=Blockly.navigation.ACTION_NEXT;a[Blockly.utils.KeyCodes.D]=Blockly.navigation.ACTION_IN;a[Blockly.utils.KeyCodes.I]=Blockly.navigation.ACTION_INSERT;a[Blockly.utils.KeyCodes.ENTER]=
 Blockly.navigation.ACTION_MARK;a[Blockly.utils.KeyCodes.X]=Blockly.navigation.ACTION_DISCONNECT;a[Blockly.utils.KeyCodes.T]=Blockly.navigation.ACTION_TOOLBOX;a[Blockly.utils.KeyCodes.E]=Blockly.navigation.ACTION_EXIT;a[Blockly.utils.KeyCodes.ESC]=Blockly.navigation.ACTION_EXIT;a[b]=Blockly.navigation.ACTION_TOGGLE_KEYBOARD_NAV;return a};Blockly.navigation={};Blockly.navigation.currentCategory_=null;Blockly.navigation.loggingCallback=null;Blockly.navigation.STATE_FLYOUT=1;Blockly.navigation.STATE_WS=2;Blockly.navigation.STATE_TOOLBOX=3;Blockly.navigation.currentState_=Blockly.navigation.STATE_WS;Blockly.navigation.actionNames={PREVIOUS:"previous",NEXT:"next",IN:"in",OUT:"out",INSERT:"insert",MARK:"mark",DISCONNECT:"disconnect",TOOLBOX:"toolbox",EXIT:"exit",TOGGLE_KEYBOARD_NAV:"toggle_keyboard_nav"};
-Blockly.navigation.markAtCursor_=function(){Blockly.getMainWorkspace().getMarker().setLocation(Blockly.getMainWorkspace().getCursor().getCurNode())};Blockly.navigation.removeMark_=function(){Blockly.getMainWorkspace().getMarker().setLocation(null);Blockly.getMainWorkspace().getMarker().hide()};Blockly.navigation.getTopNode=function(a){var b=a.previousConnection,c=a.outputConnection;return(b=b?b:c)?Blockly.ASTNode.createConnectionNode(b):Blockly.ASTNode.createBlockNode(a)};
+Blockly.navigation.markAtCursor_=function(){Blockly.getMainWorkspace().getMarker().setCurNode(Blockly.getMainWorkspace().getCursor().getCurNode())};Blockly.navigation.removeMark_=function(){Blockly.getMainWorkspace().getMarker().setCurNode(null);Blockly.getMainWorkspace().getMarker().hide()};Blockly.navigation.getTopNode=function(a){var b=a.previousConnection,c=a.outputConnection;return(b=b?b:c)?Blockly.ASTNode.createConnectionNode(b):Blockly.ASTNode.createBlockNode(a)};
 Blockly.navigation.focusToolbox_=function(){Blockly.navigation.resetFlyout_(!1);Blockly.navigation.currentState_=Blockly.navigation.STATE_TOOLBOX;var a=Blockly.getMainWorkspace(),b=a.getToolbox();Blockly.getMainWorkspace().getMarker().getCurNode()||Blockly.navigation.markAtCursor_();a&&!Blockly.navigation.currentCategory_&&(Blockly.navigation.currentCategory_=b.tree_.firstChild_);b.tree_.setSelectedItem(Blockly.navigation.currentCategory_)};
 Blockly.navigation.nextCategory_=function(){if(Blockly.navigation.currentCategory_){var a=Blockly.navigation.currentCategory_.getNextShownNode();a&&(a.select(),Blockly.navigation.currentCategory_=a)}};Blockly.navigation.previousCategory_=function(){if(Blockly.navigation.currentCategory_){var a=Blockly.navigation.currentCategory_.getPreviousShownNode();a&&(a.select(),Blockly.navigation.currentCategory_=a)}};
 Blockly.navigation.inCategory_=function(){if(Blockly.navigation.currentCategory_){var a=Blockly.navigation.currentCategory_;a.hasChildren()?a.getExpanded()?(a.getFirstChild().select(),Blockly.navigation.currentCategory_=a.getFirstChild()):a.setExpanded(!0):Blockly.navigation.focusFlyout_()}};
 Blockly.navigation.outCategory_=function(){if(Blockly.navigation.currentCategory_){var a=Blockly.navigation.currentCategory_;if(a.hasChildren()&&a.getExpanded()&&a.isUserCollapsible())a.setExpanded(!1);else{var b=a.getParent();a=a.getTree();b&&b!=a&&(b.select(),Blockly.navigation.currentCategory_=b)}}};
-Blockly.navigation.focusFlyout_=function(){Blockly.navigation.currentState_=Blockly.navigation.STATE_FLYOUT;var a=Blockly.getMainWorkspace();var b=a.getToolbox();a=b?b.flyout_:a.getFlyout();Blockly.getMainWorkspace().getMarker().getCurNode()||Blockly.navigation.markAtCursor_();a&&a.getWorkspace()&&(a=a.getWorkspace().getTopBlocks(),0<a.length&&(a=a[0],a=Blockly.ASTNode.createStackNode(a),Blockly.navigation.getFlyoutCursor_().setLocation(a)))};
+Blockly.navigation.focusFlyout_=function(){Blockly.navigation.currentState_=Blockly.navigation.STATE_FLYOUT;var a=Blockly.getMainWorkspace();var b=a.getToolbox();a=b?b.flyout_:a.getFlyout();Blockly.getMainWorkspace().getMarker().getCurNode()||Blockly.navigation.markAtCursor_();a&&a.getWorkspace()&&(a=a.getWorkspace().getTopBlocks(),0<a.length&&(a=a[0],a=Blockly.ASTNode.createStackNode(a),Blockly.navigation.getFlyoutCursor_().setCurNode(a)))};
 Blockly.navigation.getFlyoutCursor_=function(){var a=Blockly.getMainWorkspace(),b=null;a.rendered&&(b=(a=(b=a.getToolbox())?b.flyout_:a.getFlyout())?a.workspace_.getCursor():null);return b};
-Blockly.navigation.insertFromFlyout=function(){var a=Blockly.getMainWorkspace().getFlyout();a&&a.isVisible()?(a=a.createBlock(Blockly.navigation.getFlyoutCursor_().getCurNode().getLocation()),a.render(),a.setConnectionsHidden(!1),Blockly.getMainWorkspace().getCursor().setLocation(Blockly.ASTNode.createBlockNode(a)),Blockly.navigation.modify_()||Blockly.navigation.warn_("Something went wrong while inserting a block from the flyout."),Blockly.navigation.focusWorkspace_(),Blockly.getMainWorkspace().getCursor().setLocation(Blockly.navigation.getTopNode(a)),
-Blockly.navigation.removeMark_()):Blockly.navigation.warn_("Trying to insert from the flyout when the flyout does not  exist or is not visible")};Blockly.navigation.resetFlyout_=function(a){Blockly.navigation.getFlyoutCursor_()&&(Blockly.navigation.getFlyoutCursor_().hide(),a&&Blockly.getMainWorkspace().getFlyout().hide())};
+Blockly.navigation.insertFromFlyout=function(){var a=Blockly.getMainWorkspace().getFlyout();if(a&&a.isVisible()){var b=Blockly.navigation.getFlyoutCursor_().getCurNode().getLocation();b.isEnabled()?(a=a.createBlock(b),a.render(),a.setConnectionsHidden(!1),Blockly.getMainWorkspace().getCursor().setCurNode(Blockly.ASTNode.createBlockNode(a)),Blockly.navigation.modify_()||Blockly.navigation.warn_("Something went wrong while inserting a block from the flyout."),Blockly.navigation.focusWorkspace_(),Blockly.getMainWorkspace().getCursor().setCurNode(Blockly.navigation.getTopNode(a)),
+Blockly.navigation.removeMark_()):Blockly.navigation.warn_("Can't insert a disabled block.")}else Blockly.navigation.warn_("Trying to insert from the flyout when the flyout does not  exist or is not visible")};Blockly.navigation.resetFlyout_=function(a){Blockly.navigation.getFlyoutCursor_()&&(Blockly.navigation.getFlyoutCursor_().hide(),a&&Blockly.getMainWorkspace().getFlyout().hide())};
 Blockly.navigation.modifyWarn_=function(){var a=Blockly.getMainWorkspace().getMarker().getCurNode(),b=Blockly.getMainWorkspace().getCursor().getCurNode();if(!a)return Blockly.navigation.warn_("Cannot insert with no marked node."),!1;if(!b)return Blockly.navigation.warn_("Cannot insert with no cursor node."),!1;a=a.getType();b=b.getType();return a==Blockly.ASTNode.types.FIELD?(Blockly.navigation.warn_("Should not have been able to mark a field."),!1):a==Blockly.ASTNode.types.BLOCK?(Blockly.navigation.warn_("Should not have been able to mark a block."),
 !1):a==Blockly.ASTNode.types.STACK?(Blockly.navigation.warn_("Should not have been able to mark a stack."),!1):b==Blockly.ASTNode.types.FIELD?(Blockly.navigation.warn_("Cannot attach a field to anything else."),!1):b==Blockly.ASTNode.types.WORKSPACE?(Blockly.navigation.warn_("Cannot attach a workspace to anything else."),!1):!0};
 Blockly.navigation.moveBlockToWorkspace_=function(a,b){if(a.isShadow())return Blockly.navigation.warn_("Cannot move a shadow block to the workspace."),!1;a.getParent()&&a.unplug(!1);a.moveTo(b.getWsCoordinate());return!0};
@@ -790,13 +571,13 @@ Blockly.navigation.getSuperiorConnection_=function(a){return a.isSuperior()?a:a.
 Blockly.navigation.connect_=function(a,b){if(!a||!b)return!1;var c=Blockly.navigation.getInferiorConnection_(a),d=Blockly.navigation.getSuperiorConnection_(b),e=Blockly.navigation.getSuperiorConnection_(a),f=Blockly.navigation.getInferiorConnection_(b);if(c&&d&&Blockly.navigation.moveAndConnect_(c,d)||e&&f&&Blockly.navigation.moveAndConnect_(e,f)||Blockly.navigation.moveAndConnect_(a,b))return!0;try{b.checkConnection_(a)}catch(g){Blockly.navigation.warn_("Connection failed with error: "+g)}return!1};
 Blockly.navigation.insertBlock=function(a,b){switch(b.type){case Blockly.PREVIOUS_STATEMENT:if(Blockly.navigation.moveAndConnect_(a.nextConnection,b))return!0;break;case Blockly.NEXT_STATEMENT:if(Blockly.navigation.moveAndConnect_(a.previousConnection,b))return!0;break;case Blockly.INPUT_VALUE:if(Blockly.navigation.moveAndConnect_(a.outputConnection,b))return!0;break;case Blockly.OUTPUT_VALUE:for(var c=0;c<a.inputList.length;c++){var d=a.inputList[c].connection;if(d.type===Blockly.INPUT_VALUE&&Blockly.navigation.moveAndConnect_(d,
 b))return!0}}Blockly.navigation.warn_("This block can not be inserted at the marked location.");return!1};
-Blockly.navigation.disconnectBlocks_=function(){var a=Blockly.getMainWorkspace().getCursor().getCurNode();if(a.isConnection()){var b=a.getLocation();b.isConnected()?(a=b.isSuperior()?b:b.targetConnection,b=b.isSuperior()?b.targetConnection:b,b.getSourceBlock().isShadow()?Blockly.navigation.log_("Cannot disconnect a shadow block"):(a.disconnect(),b.bumpAwayFrom_(a),a.getSourceBlock().getRootBlock().bringToFront(),a=Blockly.ASTNode.createConnectionNode(a),Blockly.getMainWorkspace().getCursor().setLocation(a))):
+Blockly.navigation.disconnectBlocks_=function(){var a=Blockly.getMainWorkspace().getCursor().getCurNode();if(a.isConnection()){var b=a.getLocation();b.isConnected()?(a=b.isSuperior()?b:b.targetConnection,b=b.isSuperior()?b.targetConnection:b,b.getSourceBlock().isShadow()?Blockly.navigation.log_("Cannot disconnect a shadow block"):(a.disconnect(),b.bumpAwayFrom_(a),a.getSourceBlock().getRootBlock().bringToFront(),a=Blockly.ASTNode.createConnectionNode(a),Blockly.getMainWorkspace().getCursor().setCurNode(a))):
 Blockly.navigation.log_("Cannot disconnect unconnected connection")}else Blockly.navigation.log_("Cannot disconnect blocks when the cursor is not on a connection")};
-Blockly.navigation.focusWorkspace_=function(){Blockly.hideChaff();var a=Blockly.getMainWorkspace().getCursor(),b=Blockly.getMainWorkspace().getToolbox()?!0:!1,c=Blockly.getMainWorkspace().getTopBlocks();Blockly.navigation.resetFlyout_(b);Blockly.navigation.currentState_=Blockly.navigation.STATE_WS;0<c.length?a.setLocation(Blockly.navigation.getTopNode(c[0])):(b=Blockly.getMainWorkspace(),c=new Blockly.utils.Coordinate(100,100),b=Blockly.ASTNode.createWorkspaceNode(b,c),a.setLocation(b))};
+Blockly.navigation.focusWorkspace_=function(){Blockly.hideChaff();var a=Blockly.getMainWorkspace().getCursor(),b=Blockly.getMainWorkspace().getToolbox()?!0:!1,c=Blockly.getMainWorkspace().getTopBlocks();Blockly.navigation.resetFlyout_(b);Blockly.navigation.currentState_=Blockly.navigation.STATE_WS;0<c.length?a.setCurNode(Blockly.navigation.getTopNode(c[0])):(b=Blockly.getMainWorkspace(),c=new Blockly.utils.Coordinate(100,100),b=Blockly.ASTNode.createWorkspaceNode(b,c),a.setCurNode(b))};
 Blockly.navigation.handleEnterForWS_=function(){var a=Blockly.getMainWorkspace().getCursor().getCurNode(),b=a.getType();b===Blockly.ASTNode.types.FIELD?a.getLocation().showEditor_():a.isConnection()||b==Blockly.ASTNode.types.WORKSPACE?Blockly.navigation.markAtCursor_():b==Blockly.ASTNode.types.BLOCK?Blockly.navigation.warn_("Cannot mark a block."):b==Blockly.ASTNode.types.STACK&&Blockly.navigation.warn_("Cannot mark a stack.")};
 Blockly.navigation.getSourceBlock_=function(a){return a?a.getType()===Blockly.ASTNode.types.BLOCK?a.getLocation():a.getType()===Blockly.ASTNode.types.STACK?a.getLocation():a.getType()===Blockly.ASTNode.types.WORKSPACE?null:a.getLocation().getSourceBlock():null};
-Blockly.navigation.moveCursorOnBlockDelete=function(a){if(Blockly.getMainWorkspace()){var b=Blockly.getMainWorkspace().getCursor();if(b){var c=b.getCurNode();c=Blockly.navigation.getSourceBlock_(c);c===a?c.getParent()?(a=c.previousConnection?c.previousConnection:c.outputConnection)&&b.setLocation(Blockly.ASTNode.createConnectionNode(a.targetConnection)):b.setLocation(Blockly.ASTNode.createWorkspaceNode(c.workspace,c.getRelativeToSurfaceXY())):-1<a.getChildren().indexOf(c)&&b.setLocation(Blockly.ASTNode.createWorkspaceNode(c.workspace,
-c.getRelativeToSurfaceXY()))}}};Blockly.navigation.moveCursorOnBlockMutation=function(a){var b=Blockly.getMainWorkspace().getCursor();if(b){var c=b.getCurNode();c=Blockly.navigation.getSourceBlock_(c);c===a&&b.setLocation(Blockly.ASTNode.createBlockNode(c))}};Blockly.navigation.onKeyPress=function(a){a=Blockly.user.keyMap.serializeKeyEvent(a);return(a=Blockly.user.keyMap.getActionByKeyCode(a))?Blockly.navigation.onBlocklyAction(a):!1};
+Blockly.navigation.moveCursorOnBlockDelete=function(a){if(Blockly.getMainWorkspace()){var b=Blockly.getMainWorkspace().getCursor();if(b){var c=b.getCurNode();c=Blockly.navigation.getSourceBlock_(c);c===a?c.getParent()?(a=c.previousConnection?c.previousConnection:c.outputConnection)&&b.setCurNode(Blockly.ASTNode.createConnectionNode(a.targetConnection)):b.setCurNode(Blockly.ASTNode.createWorkspaceNode(c.workspace,c.getRelativeToSurfaceXY())):-1<a.getChildren().indexOf(c)&&b.setCurNode(Blockly.ASTNode.createWorkspaceNode(c.workspace,
+c.getRelativeToSurfaceXY()))}}};Blockly.navigation.moveCursorOnBlockMutation=function(a){var b=Blockly.getMainWorkspace().getCursor();if(b){var c=b.getCurNode();c=Blockly.navigation.getSourceBlock_(c);c===a&&b.setCurNode(Blockly.ASTNode.createBlockNode(c))}};Blockly.navigation.onKeyPress=function(a){a=Blockly.user.keyMap.serializeKeyEvent(a);return(a=Blockly.user.keyMap.getActionByKeyCode(a))?Blockly.navigation.onBlocklyAction(a):!1};
 Blockly.navigation.onBlocklyAction=function(a){var b=Blockly.getMainWorkspace().options.readOnly,c=!1;Blockly.keyboardAccessibilityMode?b?-1<Blockly.navigation.READONLY_ACTION_LIST.indexOf(a)&&(c=Blockly.navigation.handleActions_(a)):((b=Blockly.getMainWorkspace().getCursor().getCurNode())&&b.getType()===Blockly.ASTNode.types.FIELD&&(c=b.getLocation().onBlocklyAction(a)),c||(c=Blockly.navigation.handleActions_(a))):a.name===Blockly.navigation.actionNames.TOGGLE_KEYBOARD_NAV&&(Blockly.navigation.enableKeyboardAccessibility(),
 c=!0);return c};
 Blockly.navigation.handleActions_=function(a){return a.name===Blockly.navigation.actionNames.TOGGLE_KEYBOARD_NAV?(Blockly.navigation.disableKeyboardAccessibility(),!0):a.name===Blockly.navigation.actionNames.TOOLBOX?(Blockly.getMainWorkspace().getToolbox()?Blockly.navigation.focusToolbox_():Blockly.navigation.focusFlyout_(),!0):Blockly.navigation.currentState_===Blockly.navigation.STATE_WS?Blockly.navigation.workspaceOnAction_(a):Blockly.navigation.currentState_===Blockly.navigation.STATE_FLYOUT?Blockly.navigation.flyoutOnAction_(a):
@@ -828,8 +609,188 @@ rx:4,ry:4},this.svgGroup_);var c=Blockly.utils.dom.createSvgElement("text",{"cla
 c.setAttribute("x",this.width/2);c.setAttribute("y",this.height-Blockly.FlyoutButton.MARGIN);this.updateTransform_();this.onMouseUpWrapper_=Blockly.bindEventWithChecks_(this.svgGroup_,"mouseup",this,this.onMouseUp_);return this.svgGroup_};Blockly.FlyoutButton.prototype.show=function(){this.updateTransform_();this.svgGroup_.setAttribute("display","block")};
 Blockly.FlyoutButton.prototype.updateTransform_=function(){this.svgGroup_.setAttribute("transform","translate("+this.position_.x+","+this.position_.y+")")};Blockly.FlyoutButton.prototype.moveTo=function(a,b){this.position_.x=a;this.position_.y=b;this.updateTransform_()};Blockly.FlyoutButton.prototype.getPosition=function(){return this.position_};Blockly.FlyoutButton.prototype.getTargetWorkspace=function(){return this.targetWorkspace_};
 Blockly.FlyoutButton.prototype.dispose=function(){this.onMouseUpWrapper_&&Blockly.unbindEvent_(this.onMouseUpWrapper_);this.svgGroup_&&(Blockly.utils.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.targetWorkspace_=this.workspace_=null};
-Blockly.FlyoutButton.prototype.onMouseUp_=function(a){(a=this.targetWorkspace_.getGesture(a))&&a.cancel();this.isLabel_&&this.callbackKey_?console.warn("Labels should not have callbacks. Label text: "+this.text_):this.isLabel_||this.callbackKey_&&this.targetWorkspace_.getButtonCallback(this.callbackKey_)?this.isLabel_||this.targetWorkspace_.getButtonCallback(this.callbackKey_)(this):console.warn("Buttons should have callbacks. Button text: "+this.text_)};Blockly.FlyoutCursor=function(){Blockly.FlyoutCursor.superClass_.constructor.call(this)};Blockly.utils.object.inherits(Blockly.FlyoutCursor,Blockly.Cursor);Blockly.FlyoutCursor.prototype.next=function(){if(!this.isMarker_){var a=this.getCurNode();if(!a)return null;(a=a.next())&&this.setLocation(a);return a}};Blockly.FlyoutCursor.prototype["in"]=function(){return null};
-Blockly.FlyoutCursor.prototype.prev=function(){if(!this.isMarker_){var a=this.getCurNode();if(!a)return null;(a=a.prev())&&this.setLocation(a);return a}};Blockly.FlyoutCursor.prototype.out=function(){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.workspace_.setCursor(new Blockly.FlyoutCursor);this.workspace_.setMarker(new Blockly.MarkerCursor);this.RTL=!!a.RTL;this.toolboxPosition_=a.toolboxPosition;this.eventWrappers_=[];this.mats_=[];this.buttons_=[];this.listeners_=[];this.permanentlyDisabled_=[];this.tabWidth_=this.workspace_.getRenderer().getConstants().TAB_WIDTH};
+Blockly.FlyoutButton.prototype.onMouseUp_=function(a){(a=this.targetWorkspace_.getGesture(a))&&a.cancel();this.isLabel_&&this.callbackKey_?console.warn("Labels should not have callbacks. Label text: "+this.text_):this.isLabel_||this.callbackKey_&&this.targetWorkspace_.getButtonCallback(this.callbackKey_)?this.isLabel_||this.targetWorkspace_.getButtonCallback(this.callbackKey_)(this):console.warn("Buttons should have callbacks. Button text: "+this.text_)};Blockly.FlyoutCursor=function(){Blockly.FlyoutCursor.superClass_.constructor.call(this)};Blockly.utils.object.inherits(Blockly.FlyoutCursor,Blockly.Cursor);Blockly.FlyoutCursor.prototype.next=function(){if(!this.isMarker_){var a=this.getCurNode();if(!a)return null;(a=a.next())&&this.setCurNode(a);return a}};Blockly.FlyoutCursor.prototype["in"]=function(){return null};
+Blockly.FlyoutCursor.prototype.prev=function(){if(!this.isMarker_){var a=this.getCurNode();if(!a)return null;(a=a.prev())&&this.setCurNode(a);return a}};Blockly.FlyoutCursor.prototype.out=function(){return null};Blockly.ScrollbarPair=function(a){this.workspace_=a;this.hScroll=new Blockly.Scrollbar(a,!0,!0,"blocklyMainWorkspaceScrollbar");this.vScroll=new Blockly.Scrollbar(a,!1,!0,"blocklyMainWorkspaceScrollbar");this.corner_=Blockly.utils.dom.createSvgElement("rect",{height:Blockly.Scrollbar.scrollbarThickness,width:Blockly.Scrollbar.scrollbarThickness,"class":"blocklyScrollbarBackground"},null);Blockly.utils.dom.insertAfter(this.corner_,a.getBubbleCanvas())};
+Blockly.ScrollbarPair.prototype.oldHostMetrics_=null;Blockly.ScrollbarPair.prototype.dispose=function(){Blockly.utils.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.position_.x);this.oldHostMetrics_&&this.oldHostMetrics_.viewHeight==a.viewHeight&&this.oldHostMetrics_.absoluteTop==a.absoluteTop||this.corner_.setAttribute("y",
+this.hScroll.position_.y);this.oldHostMetrics_=a}};Blockly.ScrollbarPair.prototype.set=function(a,b){var c={},d=a*this.hScroll.ratio_,e=b*this.vScroll.ratio_,f=this.vScroll.scrollViewSize_;c.x=this.getRatio_(d,this.hScroll.scrollViewSize_);c.y=this.getRatio_(e,f);this.workspace_.setMetrics(c);this.hScroll.setHandlePosition(d);this.vScroll.setHandlePosition(e)};Blockly.ScrollbarPair.prototype.getRatio_=function(a,b){var c=a/b;return isNaN(c)?0:c};
+Blockly.Scrollbar=function(a,b,c,d){this.workspace_=a;this.pair_=c||!1;this.horizontal_=b;this.oldHostMetrics_=null;this.createDom_(d);this.position_=new Blockly.utils.Coordinate(0,0);a=Blockly.Scrollbar.scrollbarThickness;b?(this.svgBackground_.setAttribute("height",a),this.outerSvg_.setAttribute("height",a),this.svgHandle_.setAttribute("height",a-5),this.svgHandle_.setAttribute("y",2.5),this.lengthAttribute_="width",this.positionAttribute_="x"):(this.svgBackground_.setAttribute("width",a),this.outerSvg_.setAttribute("width",
+a),this.svgHandle_.setAttribute("width",a-5),this.svgHandle_.setAttribute("x",2.5),this.lengthAttribute_="height",this.positionAttribute_="y");this.onMouseDownBarWrapper_=Blockly.bindEventWithChecks_(this.svgBackground_,"mousedown",this,this.onMouseDownBar_);this.onMouseDownHandleWrapper_=Blockly.bindEventWithChecks_(this.svgHandle_,"mousedown",this,this.onMouseDownHandle_)};Blockly.Scrollbar.prototype.origin_=new Blockly.utils.Coordinate(0,0);Blockly.Scrollbar.prototype.startDragMouse_=0;
+Blockly.Scrollbar.prototype.scrollViewSize_=0;Blockly.Scrollbar.prototype.handleLength_=0;Blockly.Scrollbar.prototype.handlePosition_=0;Blockly.Scrollbar.prototype.isVisible_=!0;Blockly.Scrollbar.prototype.containerVisible_=!0;Blockly.Scrollbar.scrollbarThickness=15;Blockly.Touch.TOUCH_ENABLED&&(Blockly.Scrollbar.scrollbarThickness=25);
+Blockly.Scrollbar.metricsAreEquivalent_=function(a,b){return a&&b&&a.viewWidth==b.viewWidth&&a.viewHeight==b.viewHeight&&a.viewLeft==b.viewLeft&&a.viewTop==b.viewTop&&a.absoluteTop==b.absoluteTop&&a.absoluteLeft==b.absoluteLeft&&a.contentWidth==b.contentWidth&&a.contentHeight==b.contentHeight&&a.contentLeft==b.contentLeft&&a.contentTop==b.contentTop?!0:!1};
+Blockly.Scrollbar.prototype.dispose=function(){this.cleanUp_();Blockly.unbindEvent_(this.onMouseDownBarWrapper_);this.onMouseDownBarWrapper_=null;Blockly.unbindEvent_(this.onMouseDownHandleWrapper_);this.onMouseDownHandleWrapper_=null;Blockly.utils.dom.removeNode(this.outerSvg_);this.workspace_=this.svgHandle_=this.svgBackground_=this.svgGroup_=this.outerSvg_=null};Blockly.Scrollbar.prototype.setHandleLength_=function(a){this.handleLength_=a;this.svgHandle_.setAttribute(this.lengthAttribute_,this.handleLength_)};
+Blockly.Scrollbar.prototype.setHandlePosition=function(a){this.handlePosition_=a;this.svgHandle_.setAttribute(this.positionAttribute_,this.handlePosition_)};Blockly.Scrollbar.prototype.setScrollViewSize_=function(a){this.scrollViewSize_=a;this.outerSvg_.setAttribute(this.lengthAttribute_,this.scrollViewSize_);this.svgBackground_.setAttribute(this.lengthAttribute_,this.scrollViewSize_)};Blockly.ScrollbarPair.prototype.setContainerVisible=function(a){this.hScroll.setContainerVisible(a);this.vScroll.setContainerVisible(a)};
+Blockly.Scrollbar.prototype.setPosition_=function(a,b){this.position_.x=a;this.position_.y=b;Blockly.utils.dom.setCssTransform(this.outerSvg_,"translate("+(this.position_.x+this.origin_.x)+"px,"+(this.position_.y+this.origin_.y)+"px)")};Blockly.Scrollbar.prototype.resize=function(a){if(!a&&(a=this.workspace_.getMetrics(),!a))return;Blockly.Scrollbar.metricsAreEquivalent_(a,this.oldHostMetrics_)||(this.oldHostMetrics_=a,this.horizontal_?this.resizeHorizontal_(a):this.resizeVertical_(a),this.onScroll_())};
+Blockly.Scrollbar.prototype.resizeHorizontal_=function(a){this.resizeViewHorizontal(a)};Blockly.Scrollbar.prototype.resizeViewHorizontal=function(a){var b=a.viewWidth-1;this.pair_&&(b-=Blockly.Scrollbar.scrollbarThickness);this.setScrollViewSize_(Math.max(0,b));b=a.absoluteLeft+.5;this.pair_&&this.workspace_.RTL&&(b+=Blockly.Scrollbar.scrollbarThickness);this.setPosition_(b,a.absoluteTop+a.viewHeight-Blockly.Scrollbar.scrollbarThickness-.5);this.resizeContentHorizontal(a)};
+Blockly.Scrollbar.prototype.resizeContentHorizontal=function(a){this.pair_||this.setVisible(this.scrollViewSize_<a.contentWidth);this.ratio_=this.scrollViewSize_/a.contentWidth;if(-Infinity==this.ratio_||Infinity==this.ratio_||isNaN(this.ratio_))this.ratio_=0;this.setHandleLength_(Math.max(0,a.viewWidth*this.ratio_));this.setHandlePosition(this.constrainHandle_((a.viewLeft-a.contentLeft)*this.ratio_))};Blockly.Scrollbar.prototype.resizeVertical_=function(a){this.resizeViewVertical(a)};
+Blockly.Scrollbar.prototype.resizeViewVertical=function(a){var b=a.viewHeight-1;this.pair_&&(b-=Blockly.Scrollbar.scrollbarThickness);this.setScrollViewSize_(Math.max(0,b));b=a.absoluteLeft+.5;this.workspace_.RTL||(b+=a.viewWidth-Blockly.Scrollbar.scrollbarThickness-1);this.setPosition_(b,a.absoluteTop+.5);this.resizeContentVertical(a)};
+Blockly.Scrollbar.prototype.resizeContentVertical=function(a){this.pair_||this.setVisible(this.scrollViewSize_<a.contentHeight);this.ratio_=this.scrollViewSize_/a.contentHeight;if(-Infinity==this.ratio_||Infinity==this.ratio_||isNaN(this.ratio_))this.ratio_=0;this.setHandleLength_(Math.max(0,a.viewHeight*this.ratio_));this.setHandlePosition(this.constrainHandle_((a.viewTop-a.contentTop)*this.ratio_))};
+Blockly.Scrollbar.prototype.createDom_=function(a){var b="blocklyScrollbar"+(this.horizontal_?"Horizontal":"Vertical");a&&(b+=" "+a);this.outerSvg_=Blockly.utils.dom.createSvgElement("svg",{"class":b},null);this.svgGroup_=Blockly.utils.dom.createSvgElement("g",{},this.outerSvg_);this.svgBackground_=Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyScrollbarBackground"},this.svgGroup_);a=Math.floor((Blockly.Scrollbar.scrollbarThickness-5)/2);this.svgHandle_=Blockly.utils.dom.createSvgElement("rect",
+{"class":"blocklyScrollbarHandle",rx:a,ry:a},this.svgGroup_);Blockly.utils.dom.insertAfter(this.outerSvg_,this.workspace_.getParentSvg())};Blockly.Scrollbar.prototype.isVisible=function(){return this.isVisible_};Blockly.Scrollbar.prototype.setContainerVisible=function(a){var b=a!=this.containerVisible_;this.containerVisible_=a;b&&this.updateDisplay_()};
+Blockly.Scrollbar.prototype.setVisible=function(a){var b=a!=this.isVisible();if(this.pair_)throw Error("Unable to toggle visibility of paired scrollbars.");this.isVisible_=a;b&&this.updateDisplay_()};Blockly.Scrollbar.prototype.updateDisplay_=function(){this.containerVisible_&&this.isVisible()?this.outerSvg_.setAttribute("display","block"):this.outerSvg_.setAttribute("display","none")};
+Blockly.Scrollbar.prototype.onMouseDownBar_=function(a){this.workspace_.markFocused();Blockly.Touch.clearTouchIdentifier();this.cleanUp_();if(Blockly.utils.isRightButton(a))a.stopPropagation();else{var b=Blockly.utils.mouseToSvg(a,this.workspace_.getParentSvg(),this.workspace_.getInverseScreenCTM());b=this.horizontal_?b.x:b.y;var c=Blockly.utils.getInjectionDivXY_(this.svgHandle_);c=this.horizontal_?c.x:c.y;var d=this.handlePosition_,e=.95*this.handleLength_;b<=c?d-=e:b>=c+this.handleLength_&&(d+=
+e);this.setHandlePosition(this.constrainHandle_(d));this.onScroll_();a.stopPropagation();a.preventDefault()}};
+Blockly.Scrollbar.prototype.onMouseDownHandle_=function(a){this.workspace_.markFocused();this.cleanUp_();Blockly.utils.isRightButton(a)?a.stopPropagation():(this.startDragHandle=this.handlePosition_,this.workspace_.setupDragSurface(),this.startDragMouse_=this.horizontal_?a.clientX:a.clientY,Blockly.Scrollbar.onMouseUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",this,this.onMouseUpHandle_),Blockly.Scrollbar.onMouseMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",this,this.onMouseMoveHandle_),
+a.stopPropagation(),a.preventDefault())};Blockly.Scrollbar.prototype.onMouseMoveHandle_=function(a){this.setHandlePosition(this.constrainHandle_(this.startDragHandle+((this.horizontal_?a.clientX:a.clientY)-this.startDragMouse_)));this.onScroll_()};Blockly.Scrollbar.prototype.onMouseUpHandle_=function(){this.workspace_.resetDragSurface();Blockly.Touch.clearTouchIdentifier();this.cleanUp_()};
+Blockly.Scrollbar.prototype.cleanUp_=function(){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.constrainHandle_=function(a){return a=0>=a||isNaN(a)||this.scrollViewSize_<this.handleLength_?0:Math.min(a,this.scrollViewSize_-this.handleLength_)};Blockly.Scrollbar.prototype.onScroll_=function(){var a=this.handlePosition_/this.scrollViewSize_;isNaN(a)&&(a=0);var b={};this.horizontal_?b.x=a:b.y=a;this.workspace_.setMetrics(b)};Blockly.Scrollbar.prototype.set=function(a){this.setHandlePosition(this.constrainHandle_(a*this.ratio_));this.onScroll_()};
+Blockly.Scrollbar.prototype.setOrigin=function(a,b){this.origin_=new Blockly.utils.Coordinate(a,b)};Blockly.ConnectionDB=function(){this.connections_=[]};Blockly.ConnectionDB.prototype.addConnection=function(a){if(a.inDB_)throw Error("Connection already in database.");if(!a.getSourceBlock().isInFlyout){var b=this.findPositionForConnection_(a);this.connections_.splice(b,0,a);a.inDB_=!0}};
+Blockly.ConnectionDB.prototype.findConnection=function(a){if(!this.connections_.length)return-1;var b=this.findPositionForConnection_(a);if(b>=this.connections_.length)return-1;for(var c=a.y_,d=b;0<=d&&this.connections_[d].y_==c;){if(this.connections_[d]==a)return d;d--}for(;b<this.connections_.length&&this.connections_[b].y_==c;){if(this.connections_[b]==a)return b;b++}return-1};
+Blockly.ConnectionDB.prototype.findPositionForConnection_=function(a){if(!this.connections_.length)return 0;for(var b=0,c=this.connections_.length;b<c;){var d=Math.floor((b+c)/2);if(this.connections_[d].y_<a.y_)b=d+1;else if(this.connections_[d].y_>a.y_)c=d;else{b=d;break}}return b};
+Blockly.ConnectionDB.prototype.removeConnection_=function(a){if(!a.inDB_)throw Error("Connection not in database.");var b=this.findConnection(a);if(-1==b)throw Error("Unable to find connection in connectionDB.");a.inDB_=!1;this.connections_.splice(b,1)};
+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.connections_,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 l=[];h=g=k;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.connections_[a].y_-b)<=c};
+Blockly.ConnectionDB.prototype.searchForClosest=function(a,b,c){if(!this.connections_.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.connections_[k],a.isConnectionAllowed(h,g)&&(c=h,g=h.distanceFrom(a)),k--;for(;f<this.connections_.length&&this.isInYRange_(f,a.y_,b);)h=this.connections_[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(){var a=[];a[Blockly.INPUT_VALUE]=new Blockly.ConnectionDB;a[Blockly.OUTPUT_VALUE]=new Blockly.ConnectionDB;a[Blockly.NEXT_STATEMENT]=new Blockly.ConnectionDB;a[Blockly.PREVIOUS_STATEMENT]=new Blockly.ConnectionDB;return a};Blockly.CursorSvg=function(a,b){this.workspace_=a;this.isMarker_=b;this.parent_=null;this.constants_=a.getRenderer().getConstants()};Blockly.CursorSvg.CURSOR_HEIGHT=5;Blockly.CursorSvg.CURSOR_WIDTH=100;Blockly.CursorSvg.NOTCH_START_LENGTH=24;Blockly.CursorSvg.VERTICAL_PADDING=5;Blockly.CursorSvg.STACK_PADDING=10;Blockly.CursorSvg.BLOCK_PADDING=2;Blockly.CursorSvg.HEIGHT_MULTIPLIER=.75;Blockly.CursorSvg.CURSOR_COLOR="#cc0a0a";Blockly.CursorSvg.MARKER_COLOR="#4286f4";
+Blockly.CursorSvg.CURSOR_CLASS="blocklyCursor";Blockly.CursorSvg.MARKER_CLASS="blocklyMarker";Blockly.CursorSvg.prototype.currentCursorSvg=null;Blockly.CursorSvg.prototype.getSvgRoot=function(){return this.svgGroup_};Blockly.CursorSvg.prototype.createDom=function(){this.svgGroup_=Blockly.utils.dom.createSvgElement("g",{"class":this.isMarker_?Blockly.CursorSvg.MARKER_CLASS:Blockly.CursorSvg.CURSOR_CLASS},null);this.createCursorSvg_();return this.svgGroup_};
+Blockly.CursorSvg.prototype.setParent_=function(a){this.isMarker_?(this.parent_&&this.parent_.setMarkerSvg(null),a.setMarkerSvg(this.getSvgRoot())):(this.parent_&&this.parent_.setCursorSvg(null),a.setCursorSvg(this.getSvgRoot()));this.parent_=a};
+Blockly.CursorSvg.prototype.showWithBlockPrevOutput_=function(a){if(a){var b=a.width,c=a.height,d=c*Blockly.CursorSvg.HEIGHT_MULTIPLIER,e=Blockly.CursorSvg.BLOCK_PADDING;a.previousConnection?this.positionPrevious_(b,e,d):a.outputConnection?this.positionOutput_(b,c):this.positionBlock_(b,e,d);this.currentCursorSvg=this.cursorBlock_;this.setParent_(a);this.showCurrent_()}};
+Blockly.CursorSvg.prototype.showWithCoordinates_=function(a){a=a.getWsCoordinate();this.currentCursorSvg=this.cursorSvgLine_;this.setParent_(this.workspace_);this.positionLine_(a.x,a.y,Blockly.CursorSvg.CURSOR_WIDTH);this.showCurrent_()};Blockly.CursorSvg.prototype.showWithField_=function(a){a=a.getLocation();var b=a.borderRect_.width.baseVal.value,c=a.borderRect_.height.baseVal.value;this.currentCursorSvg=this.cursorSvgRect_;this.setParent_(a);this.positionRect_(0,0,b,c);this.showCurrent_()};
+Blockly.CursorSvg.prototype.showWithInput_=function(a){a=a.getLocation();var b=Blockly.utils.svgPaths.moveTo(0,0)+this.constants_.PUZZLE_TAB.pathDown,c=a.getSourceBlock();this.currentCursorSvg=this.cursorInput_;this.cursorInput_.setAttribute("d",b);this.setParent_(c);this.positionInput_(a);this.showCurrent_()};
+Blockly.CursorSvg.prototype.showWithNext_=function(a){var b=a.getLocation();a=b.getSourceBlock();b=b.getOffsetInBlock().y;var c=a.getHeightWidth().width;this.currentCursorSvg=this.cursorSvgLine_;this.setParent_(a);this.positionLine_(0,b,c);this.showCurrent_()};
+Blockly.CursorSvg.prototype.showWithStack_=function(a){a=a.getLocation();var b=a.getHeightWidth(),c=b.width+Blockly.CursorSvg.STACK_PADDING;b=b.height+Blockly.CursorSvg.STACK_PADDING;var d=-1*Blockly.CursorSvg.STACK_PADDING/2,e=-1*Blockly.CursorSvg.STACK_PADDING/2;this.currentCursorSvg=this.cursorSvgRect_;this.setParent_(a);this.positionRect_(d,e,c,b);this.showCurrent_()};Blockly.CursorSvg.prototype.showCurrent_=function(){this.hide();this.currentCursorSvg.style.display=""};
+Blockly.CursorSvg.prototype.positionBlock_=function(a,b,c){a=Blockly.utils.svgPaths.moveBy(-1*b,c)+Blockly.utils.svgPaths.lineOnAxis("V",-1*b)+Blockly.utils.svgPaths.lineOnAxis("H",a+2*b)+Blockly.utils.svgPaths.lineOnAxis("V",c);this.cursorBlock_.setAttribute("d",a)};Blockly.CursorSvg.prototype.positionInput_=function(a){var b=a.getOffsetInBlock().x,c=a.getOffsetInBlock().y;this.cursorInput_.setAttribute("transform","translate("+b+","+c+")"+(a.getSourceBlock().RTL?" scale(-1 1)":""))};
+Blockly.CursorSvg.prototype.positionLine_=function(a,b,c){this.cursorSvgLine_.setAttribute("x",a);this.cursorSvgLine_.setAttribute("y",b);this.cursorSvgLine_.setAttribute("width",c)};
+Blockly.CursorSvg.prototype.positionOutput_=function(a,b){var c=Blockly.utils.svgPaths.moveBy(a,0)+Blockly.utils.svgPaths.lineOnAxis("h",-1*(a-this.constants_.PUZZLE_TAB.width))+Blockly.utils.svgPaths.lineOnAxis("v",this.constants_.TAB_OFFSET_FROM_TOP)+this.constants_.PUZZLE_TAB.pathDown+Blockly.utils.svgPaths.lineOnAxis("V",b)+Blockly.utils.svgPaths.lineOnAxis("H",a);this.cursorBlock_.setAttribute("d",c)};
+Blockly.CursorSvg.prototype.positionPrevious_=function(a,b,c){a=Blockly.utils.svgPaths.moveBy(-1*b,c)+Blockly.utils.svgPaths.lineOnAxis("V",-1*b)+Blockly.utils.svgPaths.lineOnAxis("H",this.constants_.NOTCH_OFFSET_LEFT)+this.constants_.NOTCH.pathLeft+Blockly.utils.svgPaths.lineOnAxis("H",a+2*b)+Blockly.utils.svgPaths.lineOnAxis("V",c);this.cursorBlock_.setAttribute("d",a);this.cursorInput_.setAttribute("transform"," scale(-1 1)")};
+Blockly.CursorSvg.prototype.positionRect_=function(a,b,c,d){this.cursorSvgRect_.setAttribute("x",a);this.cursorSvgRect_.setAttribute("y",b);this.cursorSvgRect_.setAttribute("width",c);this.cursorSvgRect_.setAttribute("height",d)};Blockly.CursorSvg.prototype.hide=function(){this.cursorSvgLine_.style.display="none";this.cursorSvgRect_.style.display="none";this.cursorInput_.style.display="none";this.cursorBlock_.style.display="none"};
+Blockly.CursorSvg.prototype.draw=function(a){a&&(a.getType()===Blockly.ASTNode.types.BLOCK?(a=a.getLocation(),this.showWithBlockPrevOutput_(a)):a.getType()===Blockly.ASTNode.types.OUTPUT?(a=a.getLocation().getSourceBlock(),this.showWithBlockPrevOutput_(a)):a.getLocation().type===Blockly.INPUT_VALUE?this.showWithInput_(a):a.getLocation().type===Blockly.NEXT_STATEMENT?this.showWithNext_(a):a.getType()===Blockly.ASTNode.types.PREVIOUS?(a=a.getLocation().getSourceBlock(),this.showWithBlockPrevOutput_(a)):
+a.getType()===Blockly.ASTNode.types.FIELD?this.showWithField_(a):a.getType()===Blockly.ASTNode.types.WORKSPACE?this.showWithCoordinates_(a):a.getType()===Blockly.ASTNode.types.STACK&&this.showWithStack_(a))};
+Blockly.CursorSvg.prototype.createCursorSvg_=function(){var a=this.isMarker_?Blockly.CursorSvg.MARKER_COLOR:Blockly.CursorSvg.CURSOR_COLOR;this.cursorSvg_=Blockly.utils.dom.createSvgElement("g",{width:Blockly.CursorSvg.CURSOR_WIDTH,height:Blockly.CursorSvg.CURSOR_HEIGHT},this.svgGroup_);this.cursorSvgLine_=Blockly.utils.dom.createSvgElement("rect",{x:"0",y:"0",fill:a,width:Blockly.CursorSvg.CURSOR_WIDTH,height:Blockly.CursorSvg.CURSOR_HEIGHT,style:"display: none;"},this.cursorSvg_);this.cursorSvgRect_=
+Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyVerticalCursor",x:"0",y:"0",rx:"10",ry:"10",style:"display: none;",stroke:a},this.cursorSvg_);this.cursorInput_=Blockly.utils.dom.createSvgElement("path",{width:Blockly.CursorSvg.CURSOR_WIDTH,height:Blockly.CursorSvg.CURSOR_HEIGHT,transform:"",style:"display: none;",fill:a},this.cursorSvg_);this.cursorBlock_=Blockly.utils.dom.createSvgElement("path",{width:Blockly.CursorSvg.CURSOR_WIDTH,height:Blockly.CursorSvg.CURSOR_HEIGHT,transform:"",
+style:"display: none;",fill:"none",stroke:a,"stroke-width":"4"},this.cursorSvg_);this.isMarker_||(Blockly.utils.dom.createSvgElement("animate",{attributeType:"XML",attributeName:"fill",dur:"1s",values:Blockly.CursorSvg.CURSOR_COLOR+";transparent;transparent;",repeatCount:"indefinite"},this.cursorSvgLine_),Blockly.utils.dom.createSvgElement("animate",{attributeType:"XML",attributeName:"fill",dur:"1s",values:Blockly.CursorSvg.CURSOR_COLOR+";transparent;transparent;",repeatCount:"indefinite"},this.cursorInput_),
+Blockly.utils.dom.createSvgElement("animate",{attributeType:"XML",attributeName:"stroke",dur:"1s",values:Blockly.CursorSvg.CURSOR_COLOR+";transparent;transparent;",repeatCount:"indefinite"},this.cursorBlock_));return this.cursorSvg_};Blockly.CursorSvg.prototype.dispose=function(){this.svgGroup_&&Blockly.utils.dom.removeNode(this.svgGroup_)};Blockly.Grid=function(a,b){this.gridPattern_=a;this.spacing_=b.spacing;this.length_=b.length;this.line2_=(this.line1_=a.firstChild)&&this.line1_.nextSibling;this.snapToGrid_=b.snap};Blockly.Grid.prototype.scale_=1;Blockly.Grid.prototype.dispose=function(){this.gridPattern_=null};Blockly.Grid.prototype.shouldSnap=function(){return this.snapToGrid_};Blockly.Grid.prototype.getSpacing=function(){return this.spacing_};Blockly.Grid.prototype.getPatternId=function(){return this.gridPattern_.id};
+Blockly.Grid.prototype.update=function(a){this.scale_=a;var b=this.spacing_*a||100;this.gridPattern_.setAttribute("width",b);this.gridPattern_.setAttribute("height",b);b=Math.floor(this.spacing_/2)+.5;var c=b-this.length_/2,d=b+this.length_/2;b*=a;c*=a;d*=a;this.setLineAttributes_(this.line1_,a,c,d,b,b);this.setLineAttributes_(this.line2_,a,b,b,c,d)};
+Blockly.Grid.prototype.setLineAttributes_=function(a,b,c,d,e,f){a&&(a.setAttribute("stroke-width",b),a.setAttribute("x1",c),a.setAttribute("y1",e),a.setAttribute("x2",d),a.setAttribute("y2",f))};Blockly.Grid.prototype.moveTo=function(a,b){this.gridPattern_.setAttribute("x",a);this.gridPattern_.setAttribute("y",b);(Blockly.utils.userAgent.IE||Blockly.utils.userAgent.EDGE)&&this.update(this.scale_)};
+Blockly.Grid.createDom=function(a,b,c){a=Blockly.utils.dom.createSvgElement("pattern",{id:"blocklyGridPattern"+a,patternUnits:"userSpaceOnUse"},c);0<b.length&&0<b.spacing?(Blockly.utils.dom.createSvgElement("line",{stroke:b.colour},a),1<b.length&&Blockly.utils.dom.createSvgElement("line",{stroke:b.colour},a)):Blockly.utils.dom.createSvgElement("line",{},a);return 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||null);d=!(!c||!c.getElementsByTagName("category").length);e=a.trashcan;void 0===e&&(e=d);var l=a.maxTrashcanContents;e?void 0===l&&(l=32):l=0;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 m=!!a.rtl,n=a.horizontalLayout;void 0===n&&(n=!1);var p=a.toolboxPosition;p="end"===p?!1:
+!0;p=n?p?Blockly.TOOLBOX_AT_TOP:Blockly.TOOLBOX_AT_BOTTOM:p==m?Blockly.TOOLBOX_AT_RIGHT:Blockly.TOOLBOX_AT_LEFT;var q=a.css;void 0===q&&(q=!0);var r="https://blockly-demo.appspot.com/static/media/";a.media?r=a.media:a.path&&(r=a.path+"media/");var t=void 0===a.oneBasedIndex?!0:!!a.oneBasedIndex,u=a.theme||Blockly.Themes.Classic,v=a.keyMap||Blockly.user.keyMap.createDefaultKeyMap(),w=a.renderer||"geras";this.RTL=m;this.oneBasedIndex=t;this.collapse=f;this.comments=g;this.disable=h;this.readOnly=b;
+this.maxBlocks=a.maxBlocks||Infinity;this.maxInstances=a.maxInstances;this.pathToMedia=r;this.hasCategories=d;this.moveOptions=Blockly.Options.parseMoveOptions(a,d);this.hasScrollbars=this.moveOptions.scrollbars;this.hasTrashcan=e;this.maxTrashcanContents=l;this.hasSounds=k;this.hasCss=q;this.horizontalLayout=n;this.languageTree=c;this.gridOptions=Blockly.Options.parseGridOptions_(a);this.zoomOptions=Blockly.Options.parseZoomOptions_(a);this.toolboxPosition=p;this.theme=u;this.keyMap=v;this.renderer=
+w};Blockly.Options.prototype.parentWorkspace=null;Blockly.Options.prototype.setMetrics=null;Blockly.Options.prototype.getMetrics=null;Blockly.Options.parseMoveOptions=function(a,b){var c=a.move||{},d={};d.scrollbars=void 0===c.scrollbars&&void 0===a.scrollbars?b:!!c.scrollbars||!!a.scrollbars;d.wheel=d.scrollbars&&void 0!==c.wheel?!!c.wheel:!1;d.drag=d.scrollbars?void 0===c.drag?!0:!!c.drag:!1;return d};
+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:Number(a.startScale);b.maxScale=void 0===a.maxScale?3:Number(a.maxScale);b.minScale=void 0===a.minScale?.3:Number(a.minScale);b.scaleSpeed=void 0===a.scaleSpeed?1.2:Number(a.scaleSpeed);return b};
+Blockly.Options.parseGridOptions_=function(a){a=a.grid||{};var b={};b.spacing=Number(a.spacing)||0;b.colour=a.colour||"#888";b.length=Number(a.length)||1;b.snap=0<b.spacing&&!!a.snap;return b};
+Blockly.Options.parseToolboxTree=function(a){if(a){if("string"!=typeof a&&(Blockly.utils.userAgent.IE&&a.outerHTML?a=a.outerHTML:a instanceof Element||(a=null)),"string"==typeof a&&(a=Blockly.Xml.textToDom(a),"xml"!=a.nodeName.toLowerCase()))throw TypeError("Toolbox should be an <xml> document.");}else a=null;return a};Blockly.TouchGesture=function(a,b){Blockly.TouchGesture.superClass_.constructor.call(this,a,b);this.isMultiTouch_=!1;this.cachedPoints_={};this.startDistance_=this.previousScale_=0;this.onStartWrapper_=null};Blockly.utils.object.inherits(Blockly.TouchGesture,Blockly.Gesture);Blockly.TouchGesture.ZOOM_IN_MULTIPLIER=5;Blockly.TouchGesture.ZOOM_OUT_MULTIPLIER=6;
+Blockly.TouchGesture.prototype.doStart=function(a){Blockly.TouchGesture.superClass_.doStart.call(this,a);!this.isEnding_&&Blockly.Touch.isTouchEvent(a)&&this.handleTouchStart(a)};
+Blockly.TouchGesture.prototype.bindMouseEvents=function(a){this.onStartWrapper_=Blockly.bindEventWithChecks_(document,"mousedown",null,this.handleStart.bind(this),!0);this.onMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",null,this.handleMove.bind(this),!0);this.onUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",null,this.handleUp.bind(this),!0);a.preventDefault();a.stopPropagation()};
+Blockly.TouchGesture.prototype.handleStart=function(a){!this.isDragging()&&Blockly.Touch.isTouchEvent(a)&&(this.handleTouchStart(a),this.isMultiTouch()&&Blockly.longStop_())};Blockly.TouchGesture.prototype.handleMove=function(a){this.isDragging()?Blockly.Touch.shouldHandleEvent(a)&&Blockly.TouchGesture.superClass_.handleMove.call(this,a):this.isMultiTouch()?(Blockly.Touch.isTouchEvent(a)&&this.handleTouchMove(a),Blockly.longStop_()):Blockly.TouchGesture.superClass_.handleMove.call(this,a)};
+Blockly.TouchGesture.prototype.handleUp=function(a){Blockly.Touch.isTouchEvent(a)&&!this.isDragging()&&this.handleTouchEnd(a);!this.isMultiTouch()||this.isDragging()?Blockly.Touch.shouldHandleEvent(a)&&Blockly.TouchGesture.superClass_.handleUp.call(this,a):(a.preventDefault(),a.stopPropagation(),this.dispose())};Blockly.TouchGesture.prototype.isMultiTouch=function(){return this.isMultiTouch_};
+Blockly.TouchGesture.prototype.dispose=function(){Blockly.TouchGesture.superClass_.dispose.call(this);this.onStartWrapper_&&Blockly.unbindEvent_(this.onStartWrapper_)};Blockly.TouchGesture.prototype.handleTouchStart=function(a){var b=Blockly.Touch.getTouchIdentifierFromEvent(a);this.cachedPoints_[b]=this.getTouchPoint(a);b=Object.keys(this.cachedPoints_);2==b.length&&(this.startDistance_=Blockly.utils.Coordinate.distance(this.cachedPoints_[b[0]],this.cachedPoints_[b[1]]),this.isMultiTouch_=!0,a.preventDefault())};
+Blockly.TouchGesture.prototype.handleTouchMove=function(a){var b=Blockly.Touch.getTouchIdentifierFromEvent(a);this.cachedPoints_[b]=this.getTouchPoint(a);b=Object.keys(this.cachedPoints_);if(2==b.length){b=this.touchScale_=Blockly.utils.Coordinate.distance(this.cachedPoints_[b[0]],this.cachedPoints_[b[1]])/this.startDistance_;if(0<this.previousScale_&&Infinity>this.previousScale_){var c=b-this.previousScale_;c=0<c?c*Blockly.TouchGesture.ZOOM_IN_MULTIPLIER:c*Blockly.TouchGesture.ZOOM_OUT_MULTIPLIER;
+var d=this.startWorkspace_,e=Blockly.utils.mouseToSvg(a,d.getParentSvg(),d.getInverseScreenCTM());d.zoom(e.x,e.y,c)}this.previousScale_=b;a.preventDefault()}};Blockly.TouchGesture.prototype.handleTouchEnd=function(a){a=Blockly.Touch.getTouchIdentifierFromEvent(a);this.cachedPoints_[a]&&delete this.cachedPoints_[a];2>Object.keys(this.cachedPoints_).length&&(this.cachedPoints_={},this.previousScale_=0)};
+Blockly.TouchGesture.prototype.getTouchPoint=function(a){return this.startWorkspace_?new Blockly.utils.Coordinate(a.pageX?a.pageX:a.changedTouches[0].pageX,a.pageY?a.pageY:a.changedTouches[0].pageY):null};Blockly.VariableModel=function(a,b,c,d){this.workspace=a;this.name=b;this.type=c||"";this.id_=d||Blockly.utils.genUid();Blockly.Events.fire(new Blockly.Events.VarCreate(this))};Blockly.VariableModel.prototype.getId=function(){return this.id_};Blockly.VariableModel.compareByName=function(a,b){var c=a.name.toLowerCase(),d=b.name.toLowerCase();return c<d?-1:c==d?0:1};Blockly.Variables={};Blockly.Variables.NAME_TYPE=Blockly.VARIABLE_CATEGORY_NAME;Blockly.Variables.allUsedVarModels=function(a){var b=a.getAllBlocks(!1);a=Object.create(null);for(var c=0;c<b.length;c++){var d=b[c].getVarModels();if(d)for(var e=0;e<d.length;e++){var f=d[e],g=f.getId();g&&(a[g]=f)}}b=[];for(g in a)b.push(a[g]);return b};Blockly.Variables.allUsedVariables=function(){console.warn("Deprecated call to Blockly.Variables.allUsedVariables. Use Blockly.Variables.allUsedVarModels instead.\nIf this is a major issue please file a bug on GitHub.")};
+Blockly.Variables.ALL_DEVELOPER_VARS_WARNINGS_BY_BLOCK_TYPE_={};
+Blockly.Variables.allDeveloperVariables=function(a){a=a.getAllBlocks(!1);for(var b=Object.create(null),c=0,d;d=a[c];c++){var e=d.getDeveloperVariables;!e&&d.getDeveloperVars&&(e=d.getDeveloperVars,Blockly.Variables.ALL_DEVELOPER_VARS_WARNINGS_BY_BLOCK_TYPE_[d.type]||(console.warn("Function getDeveloperVars() deprecated. Use getDeveloperVariables() (block type '"+d.type+"')"),Blockly.Variables.ALL_DEVELOPER_VARS_WARNINGS_BY_BLOCK_TYPE_[d.type]=!0));if(e)for(d=e(),e=0;e<d.length;e++)b[d[e]]=!0}return Object.keys(b)};
+Blockly.Variables.flyoutCategory=function(a){var b=[],c=document.createElement("button");c.setAttribute("text","%{BKY_NEW_VARIABLE}");c.setAttribute("callbackKey","CREATE_VARIABLE");a.registerButtonCallback("CREATE_VARIABLE",function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace())});b.push(c);a=Blockly.Variables.flyoutCategoryBlocks(a);return b=b.concat(a)};
+Blockly.Variables.flyoutCategoryBlocks=function(a){a=a.getVariablesOfType("");var b=[];if(0<a.length){var c=a[a.length-1];if(Blockly.Blocks.variables_set){var d=Blockly.utils.xml.createElement("block");d.setAttribute("type","variables_set");d.setAttribute("gap",Blockly.Blocks.math_change?8:24);d.appendChild(Blockly.Variables.generateVariableFieldDom(c));b.push(d)}Blockly.Blocks.math_change&&(d=Blockly.utils.xml.createElement("block"),d.setAttribute("type","math_change"),d.setAttribute("gap",Blockly.Blocks.variables_get?
+20:8),d.appendChild(Blockly.Variables.generateVariableFieldDom(c)),c=Blockly.Xml.textToDom('<value name="DELTA"><shadow type="math_number"><field name="NUM">1</field></shadow></value>'),d.appendChild(c),b.push(d));if(Blockly.Blocks.variables_get){a.sort(Blockly.VariableModel.compareByName);c=0;for(var e;e=a[c];c++)d=Blockly.utils.xml.createElement("block"),d.setAttribute("type","variables_get"),d.setAttribute("gap",8),d.appendChild(Blockly.Variables.generateVariableFieldDom(e)),b.push(d)}}return b};
+Blockly.Variables.generateUniqueName=function(a){a=a.getAllVariables();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].name.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.Variables.createVariableButtonHandler=function(a,b,c){var d=c||"",e=function(c){Blockly.Variables.promptName(Blockly.Msg.NEW_VARIABLE_TITLE,c,function(c){if(c){var f=Blockly.Variables.nameUsedWithAnyType_(c,a);if(f){var g=c.toLowerCase();if(f.type==d)var l=Blockly.Msg.VARIABLE_ALREADY_EXISTS.replace("%1",g);else l=Blockly.Msg.VARIABLE_ALREADY_EXISTS_FOR_ANOTHER_TYPE,l=l.replace("%1",g).replace("%2",f.type);Blockly.alert(l,function(){e(c)})}else a.createVariable(c,d),b&&b(c)}else b&&b(null)})};
+e("")};Blockly.Variables.createVariable=Blockly.Variables.createVariableButtonHandler;
+Blockly.Variables.renameVariable=function(a,b,c){var d=function(e){var f=Blockly.Msg.RENAME_VARIABLE_TITLE.replace("%1",b.name);Blockly.Variables.promptName(f,e,function(e){if(e){var f=Blockly.Variables.nameUsedWithOtherType_(e,b.type,a);f?(f=Blockly.Msg.VARIABLE_ALREADY_EXISTS_FOR_ANOTHER_TYPE.replace("%1",e.toLowerCase()).replace("%2",f.type),Blockly.alert(f,function(){d(e)})):(a.renameVariableById(b.getId(),e),c&&c(e))}else c&&c(null)})};d("")};
+Blockly.Variables.promptName=function(a,b,c){Blockly.prompt(a,b,function(a){a&&(a=a.replace(/[\s\xa0]+/g," ").trim(),a==Blockly.Msg.RENAME_VARIABLE||a==Blockly.Msg.NEW_VARIABLE)&&(a=null);c(a)})};Blockly.Variables.nameUsedWithOtherType_=function(a,b,c){c=c.getVariableMap().getAllVariables();a=a.toLowerCase();for(var d=0,e;e=c[d];d++)if(e.name.toLowerCase()==a&&e.type!=b)return e;return null};
+Blockly.Variables.nameUsedWithAnyType_=function(a,b){var c=b.getVariableMap().getAllVariables();a=a.toLowerCase();for(var d=0,e;e=c[d];d++)if(e.name.toLowerCase()==a)return e;return null};Blockly.Variables.generateVariableFieldDom=function(a){var b=Blockly.utils.xml.createElement("field");b.setAttribute("name","VAR");b.setAttribute("id",a.getId());b.setAttribute("variabletype",a.type);a=Blockly.utils.xml.createTextNode(a.name);b.appendChild(a);return b};
+Blockly.Variables.getOrCreateVariablePackage=function(a,b,c,d){var e=Blockly.Variables.getVariable(a,b,c,d);e||(e=Blockly.Variables.createVariable_(a,b,c,d));return e};Blockly.Variables.getVariable=function(a,b,c,d){var e=a.getPotentialVariableMap();if(b){var f=a.getVariableById(b);!f&&e&&(f=e.getVariableById(b));if(f)return f}if(c){if(void 0==d)throw Error("Tried to look up a variable by name without a type");f=a.getVariable(c,d);!f&&e&&(f=e.getVariable(c,d))}return f};
+Blockly.Variables.createVariable_=function(a,b,c,d){var e=a.getPotentialVariableMap();c||(c=Blockly.Variables.generateUniqueName(a.isFlyout?a.targetWorkspace:a));return e?e.createVariable(c,d,b):a.createVariable(c,d,b)};Blockly.Variables.getAddedVariables=function(a,b){var c=a.getAllVariables(),d=[];if(b.length!=c.length)for(var e=0;e<c.length;e++){var f=c[e];-1==b.indexOf(f)&&d.push(f)}return d};Blockly.VariablesDynamic={};Blockly.VariablesDynamic.onCreateVariableButtonClick_String=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"String")};Blockly.VariablesDynamic.onCreateVariableButtonClick_Number=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"Number")};Blockly.VariablesDynamic.onCreateVariableButtonClick_Colour=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"Colour")};
+Blockly.VariablesDynamic.flyoutCategory=function(a){var b=[],c=document.createElement("button");c.setAttribute("text",Blockly.Msg.NEW_STRING_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE_STRING");b.push(c);c=document.createElement("button");c.setAttribute("text",Blockly.Msg.NEW_NUMBER_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE_NUMBER");b.push(c);c=document.createElement("button");c.setAttribute("text",Blockly.Msg.NEW_COLOUR_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE_COLOUR");
+b.push(c);a.registerButtonCallback("CREATE_VARIABLE_STRING",Blockly.VariablesDynamic.onCreateVariableButtonClick_String);a.registerButtonCallback("CREATE_VARIABLE_NUMBER",Blockly.VariablesDynamic.onCreateVariableButtonClick_Number);a.registerButtonCallback("CREATE_VARIABLE_COLOUR",Blockly.VariablesDynamic.onCreateVariableButtonClick_Colour);a=Blockly.VariablesDynamic.flyoutCategoryBlocks(a);return b=b.concat(a)};
+Blockly.VariablesDynamic.flyoutCategoryBlocks=function(a){a=a.getAllVariables();var b=[];if(0<a.length){if(Blockly.Blocks.variables_set_dynamic){var c=a[a.length-1],d=Blockly.utils.xml.createElement("block");d.setAttribute("type","variables_set_dynamic");d.setAttribute("gap",24);d.appendChild(Blockly.Variables.generateVariableFieldDom(c));b.push(d)}if(Blockly.Blocks.variables_get_dynamic){a.sort(Blockly.VariableModel.compareByName);c=0;for(var e;e=a[c];c++)d=Blockly.utils.xml.createElement("block"),
+d.setAttribute("type","variables_get_dynamic"),d.setAttribute("gap",8),d.appendChild(Blockly.Variables.generateVariableFieldDom(e)),b.push(d)}}return b};Blockly.WorkspaceAudio=function(a){this.parentWorkspace_=a;this.SOUNDS_=Object.create(null)};Blockly.WorkspaceAudio.prototype.lastSound_=null;Blockly.WorkspaceAudio.prototype.dispose=function(){this.SOUNDS_=this.parentWorkspace_=null};
+Blockly.WorkspaceAudio.prototype.load=function(a,b){if(a.length){try{var c=new Blockly.utils.global.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 Blockly.utils.global.Audio(f);break}}d&&d.play&&(this.SOUNDS_[b]=d)}};
+Blockly.WorkspaceAudio.prototype.preload=function(){for(var a in this.SOUNDS_){var b=this.SOUNDS_[a];b.volume=.01;var c=b.play();void 0!==c?c.then(b.pause)["catch"](function(){}):b.pause();if(Blockly.utils.userAgent.IPAD||Blockly.utils.userAgent.IPHONE)break}};
+Blockly.WorkspaceAudio.prototype.play=function(a,b){var c=this.SOUNDS_[a];if(c){var d=new Date;null!=this.lastSound_&&d-this.lastSound_<Blockly.SOUND_LIMIT||(this.lastSound_=d,c=Blockly.utils.userAgent.IPAD||Blockly.utils.userAgent.ANDROID?c:c.cloneNode(),c.volume=void 0===b?1:b,c.play())}else this.parentWorkspace_&&this.parentWorkspace_.getAudioManager().play(a,b)};Blockly.WorkspaceCommentSvg.render={};Blockly.WorkspaceCommentSvg.RESIZE_SIZE=8;Blockly.WorkspaceCommentSvg.BORDER_RADIUS=3;Blockly.WorkspaceCommentSvg.TEXTAREA_OFFSET=2;Blockly.WorkspaceCommentSvg.TOP_OFFSET=10;Blockly.WorkspaceCommentSvg.prototype.getHeightWidth=function(){return{width:this.getWidth(),height:this.getHeight()}};
+Blockly.WorkspaceCommentSvg.prototype.render=function(){if(!this.rendered_){var a=this.getHeightWidth();this.createEditor_();this.svgGroup_.appendChild(this.foreignObject_);this.svgHandleTarget_=Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyCommentHandleTarget",x:0,y:0});this.svgGroup_.appendChild(this.svgHandleTarget_);this.svgRectTarget_=Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyCommentTarget",x:0,y:0,rx:Blockly.WorkspaceCommentSvg.BORDER_RADIUS,ry:Blockly.WorkspaceCommentSvg.BORDER_RADIUS});
+this.svgGroup_.appendChild(this.svgRectTarget_);this.addResizeDom_();this.isDeletable()&&this.addDeleteDom_();this.setSize_(a.width,a.height);this.textarea_.value=this.content_;this.rendered_=!0;this.resizeGroup_&&Blockly.bindEventWithChecks_(this.resizeGroup_,"mousedown",this,this.resizeMouseDown_);this.isDeletable()&&(Blockly.bindEventWithChecks_(this.deleteGroup_,"mousedown",this,this.deleteMouseDown_),Blockly.bindEventWithChecks_(this.deleteGroup_,"mouseout",this,this.deleteMouseOut_),Blockly.bindEventWithChecks_(this.deleteGroup_,
+"mouseup",this,this.deleteMouseUp_))}};
+Blockly.WorkspaceCommentSvg.prototype.createEditor_=function(){this.foreignObject_=Blockly.utils.dom.createSvgElement("foreignObject",{x:0,y:Blockly.WorkspaceCommentSvg.TOP_OFFSET,"class":"blocklyCommentForeignObject"},null);var a=document.createElementNS(Blockly.utils.dom.HTML_NS,"body");a.setAttribute("xmlns",Blockly.utils.dom.HTML_NS);a.className="blocklyMinimalBody";var b=document.createElementNS(Blockly.utils.dom.HTML_NS,"textarea");b.className="blocklyCommentTextarea";b.setAttribute("dir",this.RTL?
+"RTL":"LTR");a.appendChild(b);this.textarea_=b;this.foreignObject_.appendChild(a);Blockly.bindEventWithChecks_(b,"wheel",this,function(a){a.stopPropagation()});Blockly.bindEventWithChecks_(b,"change",this,function(a){this.setContent(b.value)});return this.foreignObject_};
+Blockly.WorkspaceCommentSvg.prototype.addResizeDom_=function(){this.resizeGroup_=Blockly.utils.dom.createSvgElement("g",{"class":this.RTL?"blocklyResizeSW":"blocklyResizeSE"},this.svgGroup_);var a=Blockly.WorkspaceCommentSvg.RESIZE_SIZE;Blockly.utils.dom.createSvgElement("polygon",{points:"0,x x,x x,0".replace(/x/g,a.toString())},this.resizeGroup_);Blockly.utils.dom.createSvgElement("line",{"class":"blocklyResizeLine",x1:a/3,y1:a-1,x2:a-1,y2:a/3},this.resizeGroup_);Blockly.utils.dom.createSvgElement("line",
+{"class":"blocklyResizeLine",x1:2*a/3,y1:a-1,x2:a-1,y2:2*a/3},this.resizeGroup_)};
+Blockly.WorkspaceCommentSvg.prototype.addDeleteDom_=function(){this.deleteGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyCommentDeleteIcon"},this.svgGroup_);this.deleteIconBorder_=Blockly.utils.dom.createSvgElement("circle",{"class":"blocklyDeleteIconShape",r:"7",cx:"7.5",cy:"7.5"},this.deleteGroup_);Blockly.utils.dom.createSvgElement("line",{x1:"5",y1:"10",x2:"10",y2:"5",stroke:"#fff","stroke-width":"2"},this.deleteGroup_);Blockly.utils.dom.createSvgElement("line",{x1:"5",y1:"5",
+x2:"10",y2:"10",stroke:"#fff","stroke-width":"2"},this.deleteGroup_)};
+Blockly.WorkspaceCommentSvg.prototype.resizeMouseDown_=function(a){this.unbindDragEvents_();Blockly.utils.isRightButton(a)||(this.workspace.startDrag(a,new Blockly.utils.Coordinate(this.workspace.RTL?-this.width_:this.width_,this.height_)),this.onMouseUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",this,this.resizeMouseUp_),this.onMouseMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",this,this.resizeMouseMove_),Blockly.hideChaff());a.stopPropagation()};
+Blockly.WorkspaceCommentSvg.prototype.deleteMouseDown_=function(a){Blockly.utils.dom.addClass(this.deleteIconBorder_,"blocklyDeleteIconHighlighted");a.stopPropagation()};Blockly.WorkspaceCommentSvg.prototype.deleteMouseOut_=function(a){Blockly.utils.dom.removeClass(this.deleteIconBorder_,"blocklyDeleteIconHighlighted")};Blockly.WorkspaceCommentSvg.prototype.deleteMouseUp_=function(a){this.dispose(!0,!0);a.stopPropagation()};
+Blockly.WorkspaceCommentSvg.prototype.unbindDragEvents_=function(){this.onMouseUpWrapper_&&(Blockly.unbindEvent_(this.onMouseUpWrapper_),this.onMouseUpWrapper_=null);this.onMouseMoveWrapper_&&(Blockly.unbindEvent_(this.onMouseMoveWrapper_),this.onMouseMoveWrapper_=null)};Blockly.WorkspaceCommentSvg.prototype.resizeMouseUp_=function(){Blockly.Touch.clearTouchIdentifier();this.unbindDragEvents_()};
+Blockly.WorkspaceCommentSvg.prototype.resizeMouseMove_=function(a){this.autoLayout_=!1;a=this.workspace.moveDrag(a);this.setSize_(this.RTL?-a.x:a.x,a.y)};
+Blockly.WorkspaceCommentSvg.prototype.resizeComment_=function(){var a=this.getHeightWidth(),b=Blockly.WorkspaceCommentSvg.TOP_OFFSET,c=2*Blockly.WorkspaceCommentSvg.TEXTAREA_OFFSET;this.foreignObject_.setAttribute("width",a.width);this.foreignObject_.setAttribute("height",a.height-b);this.RTL&&this.foreignObject_.setAttribute("x",-a.width);this.textarea_.style.width=a.width-c+"px";this.textarea_.style.height=a.height-c-b+"px"};
+Blockly.WorkspaceCommentSvg.prototype.setSize_=function(a,b){a=Math.max(a,45);b=Math.max(b,20+Blockly.WorkspaceCommentSvg.TOP_OFFSET);this.width_=a;this.height_=b;this.svgRect_.setAttribute("width",a);this.svgRect_.setAttribute("height",b);this.svgRectTarget_.setAttribute("width",a);this.svgRectTarget_.setAttribute("height",b);this.svgHandleTarget_.setAttribute("width",a);this.svgHandleTarget_.setAttribute("height",Blockly.WorkspaceCommentSvg.TOP_OFFSET);this.RTL&&(this.svgRect_.setAttribute("transform",
+"scale(-1 1)"),this.svgRectTarget_.setAttribute("transform","scale(-1 1)"));var c=Blockly.WorkspaceCommentSvg.RESIZE_SIZE;this.resizeGroup_&&(this.RTL?(this.resizeGroup_.setAttribute("transform","translate("+(-a+c)+","+(b-c)+") scale(-1 1)"),this.deleteGroup_.setAttribute("transform","translate("+(-a+c)+","+-c+") scale(-1 1)")):(this.resizeGroup_.setAttribute("transform","translate("+(a-c)+","+(b-c)+")"),this.deleteGroup_.setAttribute("transform","translate("+(a-c)+","+-c+")")));this.resizeComment_()};
+Blockly.WorkspaceCommentSvg.prototype.disposeInternal_=function(){this.svgHandleTarget_=this.svgRectTarget_=this.foreignObject_=this.textarea_=null;this.disposed_=!0};Blockly.WorkspaceCommentSvg.prototype.setFocus=function(){var a=this;this.focused_=!0;setTimeout(function(){a.disposed_||(a.textarea_.focus(),a.addFocus(),Blockly.utils.dom.addClass(a.svgRectTarget_,"blocklyCommentTargetFocused"),Blockly.utils.dom.addClass(a.svgHandleTarget_,"blocklyCommentHandleTargetFocused"))},0)};
+Blockly.WorkspaceCommentSvg.prototype.blurFocus=function(){var a=this;this.focused_=!1;setTimeout(function(){a.disposed_||(a.textarea_.blur(),a.removeFocus(),Blockly.utils.dom.removeClass(a.svgRectTarget_,"blocklyCommentTargetFocused"),Blockly.utils.dom.removeClass(a.svgHandleTarget_,"blocklyCommentHandleTargetFocused"))},0)};Blockly.WorkspaceDragSurfaceSvg=function(a){this.container_=a;this.createDom()};Blockly.WorkspaceDragSurfaceSvg.prototype.SVG_=null;Blockly.WorkspaceDragSurfaceSvg.prototype.dragGroup_=null;Blockly.WorkspaceDragSurfaceSvg.prototype.container_=null;
+Blockly.WorkspaceDragSurfaceSvg.prototype.createDom=function(){this.SVG_||(this.SVG_=Blockly.utils.dom.createSvgElement("svg",{xmlns:Blockly.utils.dom.SVG_NS,"xmlns:html":Blockly.utils.dom.HTML_NS,"xmlns:xlink":Blockly.utils.dom.XLINK_NS,version:"1.1","class":"blocklyWsDragSurface blocklyOverflowVisible"},null),this.container_.appendChild(this.SVG_))};
+Blockly.WorkspaceDragSurfaceSvg.prototype.translateSurface=function(a,b){var c=a.toFixed(0),d=b.toFixed(0);this.SVG_.style.display="block";Blockly.utils.dom.setCssTransform(this.SVG_,"translate3d("+c+"px, "+d+"px, 0px)")};Blockly.WorkspaceDragSurfaceSvg.prototype.getSurfaceTranslation=function(){return Blockly.utils.getRelativeXY(this.SVG_)};
+Blockly.WorkspaceDragSurfaceSvg.prototype.clearAndHide=function(a){if(!a)throw Error("Couldn't clear and hide the drag surface: missing new surface.");var b=this.SVG_.childNodes[0],c=this.SVG_.childNodes[1];if(!(b&&c&&Blockly.utils.dom.hasClass(b,"blocklyBlockCanvas")&&Blockly.utils.dom.hasClass(c,"blocklyBubbleCanvas")))throw Error("Couldn't clear and hide the drag surface. A node was missing.");null!=this.previousSibling_?Blockly.utils.dom.insertAfter(b,this.previousSibling_):a.insertBefore(b,a.firstChild);
+Blockly.utils.dom.insertAfter(c,b);this.SVG_.style.display="none";if(this.SVG_.childNodes.length)throw Error("Drag surface was not cleared.");Blockly.utils.dom.setCssTransform(this.SVG_,"");this.previousSibling_=null};
+Blockly.WorkspaceDragSurfaceSvg.prototype.setContentsAndShow=function(a,b,c,d,e,f){if(this.SVG_.childNodes.length)throw Error("Already dragging a block.");this.previousSibling_=c;a.setAttribute("transform","translate(0, 0) scale("+f+")");b.setAttribute("transform","translate(0, 0) scale("+f+")");this.SVG_.setAttribute("width",d);this.SVG_.setAttribute("height",e);this.SVG_.appendChild(a);this.SVG_.appendChild(b);this.SVG_.style.display="block"};
+Blockly.WorkspaceSvg=function(a,b,c){Blockly.WorkspaceSvg.superClass_.constructor.call(this,a);this.getMetrics=a.getMetrics||Blockly.WorkspaceSvg.getTopLevelWorkspaceMetrics_;this.setMetrics=a.setMetrics||Blockly.WorkspaceSvg.setTopLevelWorkspaceMetrics_;this.connectionDBList=Blockly.ConnectionDB.init();b&&(this.blockDragSurface_=b);c&&(this.workspaceDragSurface_=c);this.useWorkspaceDragSurface_=this.workspaceDragSurface_&&Blockly.utils.is3dSupported();this.highlightedBlocks_=[];this.audioManager_=
+new Blockly.WorkspaceAudio(a.parentWorkspace);this.grid_=this.options.gridPattern?new Blockly.Grid(a.gridPattern,a.gridOptions):null;this.markerSvg_=this.cursorSvg_=null;Blockly.Variables&&Blockly.Variables.flyoutCategory&&this.registerToolboxCategoryCallback(Blockly.VARIABLE_CATEGORY_NAME,Blockly.Variables.flyoutCategory);Blockly.VariablesDynamic&&Blockly.VariablesDynamic.flyoutCategory&&this.registerToolboxCategoryCallback(Blockly.VARIABLE_DYNAMIC_CATEGORY_NAME,Blockly.VariablesDynamic.flyoutCategory);
+Blockly.Procedures&&Blockly.Procedures.flyoutCategory&&this.registerToolboxCategoryCallback(Blockly.PROCEDURE_CATEGORY_NAME,Blockly.Procedures.flyoutCategory);this.renderer_=Blockly.blockRendering.init(this.options.renderer||"geras")};Blockly.utils.object.inherits(Blockly.WorkspaceSvg,Blockly.Workspace);Blockly.WorkspaceSvg.prototype.resizeHandlerWrapper_=null;Blockly.WorkspaceSvg.prototype.rendered=!0;Blockly.WorkspaceSvg.prototype.isVisible_=!0;Blockly.WorkspaceSvg.prototype.isFlyout=!1;
+Blockly.WorkspaceSvg.prototype.isMutator=!1;Blockly.WorkspaceSvg.prototype.resizesEnabled_=!0;Blockly.WorkspaceSvg.prototype.scrollX=0;Blockly.WorkspaceSvg.prototype.scrollY=0;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.flyout_=null;
+Blockly.WorkspaceSvg.prototype.toolbox_=null;Blockly.WorkspaceSvg.prototype.currentGesture_=null;Blockly.WorkspaceSvg.prototype.blockDragSurface_=null;Blockly.WorkspaceSvg.prototype.workspaceDragSurface_=null;Blockly.WorkspaceSvg.prototype.useWorkspaceDragSurface_=!1;Blockly.WorkspaceSvg.prototype.isDragSurfaceActive_=!1;Blockly.WorkspaceSvg.prototype.injectionDiv_=null;Blockly.WorkspaceSvg.prototype.lastRecordedPageScroll_=null;Blockly.WorkspaceSvg.prototype.flyoutButtonCallbacks_={};
+Blockly.WorkspaceSvg.prototype.toolboxCategoryCallbacks_={};Blockly.WorkspaceSvg.prototype.configureContextMenu=null;Blockly.WorkspaceSvg.prototype.targetWorkspace=null;Blockly.WorkspaceSvg.prototype.inverseScreenCTM_=null;Blockly.WorkspaceSvg.prototype.inverseScreenCTMDirty_=!0;Blockly.WorkspaceSvg.prototype.getRenderer=function(){return this.renderer_};
+Blockly.WorkspaceSvg.prototype.setCursor=function(a){this.cursor_&&this.cursor_.getDrawer()&&this.cursor_.getDrawer().dispose();if(this.cursor_=a)this.cursor_.setDrawer(this.getRenderer().makeCursorDrawer(this,!1)),this.setCursorSvg(this.cursor_.getDrawer().createDom())};Blockly.WorkspaceSvg.prototype.setMarker=function(a){this.marker_&&this.marker_.getDrawer()&&this.marker_.getDrawer().dispose();if(this.marker_=a)this.marker_.setDrawer(this.getRenderer().makeCursorDrawer(this,!0)),this.setMarkerSvg(this.marker_.getDrawer().createDom())};
+Blockly.WorkspaceSvg.prototype.setCursorSvg=function(a){a?this.svgGroup_&&(this.svgGroup_.appendChild(a),this.cursorSvg_=a):this.cursorSvg_=null};Blockly.WorkspaceSvg.prototype.setMarkerSvg=function(a){a?this.svgGroup_&&(this.cursorSvg_?this.svgGroup_.insertBefore(a,this.cursorSvg_):this.svgGroup_.appendChild(a),this.markerSvg_=a):this.markerSvg_=null};
+Blockly.WorkspaceSvg.prototype.getInverseScreenCTM=function(){if(this.inverseScreenCTMDirty_){var a=this.getParentSvg().getScreenCTM();a&&(this.inverseScreenCTM_=a.inverse(),this.inverseScreenCTMDirty_=!1)}return this.inverseScreenCTM_};Blockly.WorkspaceSvg.prototype.updateInverseScreenCTM=function(){this.inverseScreenCTMDirty_=!0};Blockly.WorkspaceSvg.prototype.isVisible=function(){return this.isVisible_};
+Blockly.WorkspaceSvg.prototype.getSvgXY=function(a){var b=0,c=0,d=1;if(Blockly.utils.dom.containsNode(this.getCanvas(),a)||Blockly.utils.dom.containsNode(this.getBubbleCanvas(),a))d=this.scale;do{var e=Blockly.utils.getRelativeXY(a);if(a==this.getCanvas()||a==this.getBubbleCanvas())d=1;b+=e.x*d;c+=e.y*d;a=a.parentNode}while(a&&a!=this.getParentSvg());return new Blockly.utils.Coordinate(b,c)};Blockly.WorkspaceSvg.prototype.getOriginOffsetInPixels=function(){return Blockly.utils.getInjectionDivXY_(this.svgBlockCanvas_)};
+Blockly.WorkspaceSvg.prototype.getInjectionDiv=function(){if(!this.injectionDiv_)for(var a=this.svgGroup_;a;){if(-1!=(" "+(a.getAttribute("class")||"")+" ").indexOf(" injectionDiv ")){this.injectionDiv_=a;break}a=a.parentNode}return this.injectionDiv_};Blockly.WorkspaceSvg.prototype.setResizeHandlerWrapper=function(a){this.resizeHandlerWrapper_=a};
+Blockly.WorkspaceSvg.prototype.createDom=function(a){this.svgGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyWorkspace"},null);a&&(this.svgBackground_=Blockly.utils.dom.createSvgElement("rect",{height:"100%",width:"100%","class":a},this.svgGroup_),"blocklyMainBackground"==a&&this.grid_&&(this.svgBackground_.style.fill="url(#"+this.grid_.getPatternId()+")"));this.svgBlockCanvas_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyBlockCanvas"},this.svgGroup_);this.svgBubbleCanvas_=
+Blockly.utils.dom.createSvgElement("g",{"class":"blocklyBubbleCanvas"},this.svgGroup_);this.isFlyout||(Blockly.bindEventWithChecks_(this.svgGroup_,"mousedown",this,this.onMouseDown_,!1,!0),Blockly.bindEventWithChecks_(this.svgGroup_,"wheel",this,this.onMouseWheel_));this.options.hasCategories&&(this.toolbox_=new Blockly.Toolbox(this));this.grid_&&this.grid_.update(this.scale);this.recordDeleteAreas();this.cursor_.setDrawer(this.getRenderer().makeCursorDrawer(this,!1));a=this.cursor_.getDrawer().createDom();
+this.svgGroup_.appendChild(a);this.marker_.setDrawer(this.getRenderer().makeCursorDrawer(this,!0));a=this.marker_.getDrawer().createDom();this.svgGroup_.appendChild(a);return this.svgGroup_};
+Blockly.WorkspaceSvg.prototype.dispose=function(){this.rendered=!1;this.currentGesture_&&this.currentGesture_.cancel();Blockly.WorkspaceSvg.superClass_.dispose.call(this);this.svgGroup_&&(Blockly.utils.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.svgBubbleCanvas_=this.svgBlockCanvas_=null;this.toolbox_&&(this.toolbox_.dispose(),this.toolbox_=null);this.flyout_&&(this.flyout_.dispose(),this.flyout_=null);this.trashcan&&(this.trashcan.dispose(),this.trashcan=null);this.scrollbar&&(this.scrollbar.dispose(),
+this.scrollbar=null);this.zoomControls_&&(this.zoomControls_.dispose(),this.zoomControls_=null);this.marker_&&this.marker_.getDrawer().dispose();this.getCursor()&&this.getCursor().getDrawer().dispose();this.audioManager_&&(this.audioManager_.dispose(),this.audioManager_=null);this.grid_&&(this.grid_.dispose(),this.grid_=null);this.flyoutButtonCallbacks_=this.toolboxCategoryCallbacks_=this.connectionDBList=null;if(!this.options.parentWorkspace){var a=this.getParentSvg().parentNode;a&&Blockly.utils.dom.removeNode(a)}this.resizeHandlerWrapper_&&
+(Blockly.unbindEvent_(this.resizeHandlerWrapper_),this.resizeHandlerWrapper_=null)};Blockly.WorkspaceSvg.prototype.newBlock=function(a,b){return new Blockly.BlockSvg(this,a,b)};Blockly.WorkspaceSvg.prototype.addTrashcan=function(){if(!Blockly.Trashcan)throw Error("Missing require for Blockly.Trashcan");this.trashcan=new Blockly.Trashcan(this);var a=this.trashcan.createDom();this.svgGroup_.insertBefore(a,this.svgBlockCanvas_)};
+Blockly.WorkspaceSvg.prototype.addZoomControls=function(){if(!Blockly.ZoomControls)throw Error("Missing require for Blockly.ZoomControls");this.zoomControls_=new Blockly.ZoomControls(this);var a=this.zoomControls_.createDom();this.svgGroup_.appendChild(a)};
+Blockly.WorkspaceSvg.prototype.addFlyout_=function(a){var b={disabledPatternId:this.options.disabledPatternId,parentWorkspace:this,RTL:this.RTL,oneBasedIndex:this.options.oneBasedIndex,horizontalLayout:this.horizontalLayout,toolboxPosition:this.options.toolboxPosition,renderer:this.options.renderer};this.flyout_=this.horizontalLayout?new Blockly.HorizontalFlyout(b):new Blockly.VerticalFlyout(b);this.flyout_.autoClose=!1;return this.flyout_.createDom(a)};
+Blockly.WorkspaceSvg.prototype.getFlyout=function(){return this.flyout_?this.flyout_:this.toolbox_?this.toolbox_.flyout_:null};Blockly.WorkspaceSvg.prototype.getToolbox=function(){return this.toolbox_};Blockly.WorkspaceSvg.prototype.updateScreenCalculations_=function(){this.updateInverseScreenCTM();this.recordDeleteAreas()};
+Blockly.WorkspaceSvg.prototype.resizeContents=function(){if(this.resizesEnabled_&&this.rendered){if(this.scrollbar){var a=this.getMetrics();this.scrollbar.hScroll.resizeContentHorizontal(a);this.scrollbar.vScroll.resizeContentVertical(a)}this.updateInverseScreenCTM()}};
+Blockly.WorkspaceSvg.prototype.resize=function(){this.toolbox_&&this.toolbox_.position();this.flyout_&&this.flyout_.position();this.trashcan&&this.trashcan.position();this.zoomControls_&&this.zoomControls_.position();this.scrollbar&&this.scrollbar.resize();this.updateScreenCalculations_()};
+Blockly.WorkspaceSvg.prototype.updateScreenCalculationsIfScrolled=function(){var a=Blockly.utils.getDocumentScroll();Blockly.utils.Coordinate.equals(this.lastRecordedPageScroll_,a)||(this.lastRecordedPageScroll_=a,this.updateScreenCalculations_())};Blockly.WorkspaceSvg.prototype.getCanvas=function(){return this.svgBlockCanvas_};Blockly.WorkspaceSvg.prototype.getBubbleCanvas=function(){return this.svgBubbleCanvas_};
+Blockly.WorkspaceSvg.prototype.getParentSvg=function(){if(this.cachedParentSvg_)return this.cachedParentSvg_;for(var a=this.svgGroup_;a;){if("svg"==a.tagName)return this.cachedParentSvg_=a;a=a.parentNode}return null};
+Blockly.WorkspaceSvg.prototype.translate=function(a,b){if(this.useWorkspaceDragSurface_&&this.isDragSurfaceActive_)this.workspaceDragSurface_.translateSurface(a,b);else{var c="translate("+a+","+b+") scale("+this.scale+")";this.svgBlockCanvas_.setAttribute("transform",c);this.svgBubbleCanvas_.setAttribute("transform",c)}this.blockDragSurface_&&this.blockDragSurface_.translateAndScaleGroup(a,b,this.scale);this.grid_&&this.grid_.moveTo(a,b)};
+Blockly.WorkspaceSvg.prototype.resetDragSurface=function(){if(this.useWorkspaceDragSurface_){this.isDragSurfaceActive_=!1;var a=this.workspaceDragSurface_.getSurfaceTranslation();this.workspaceDragSurface_.clearAndHide(this.svgGroup_);a="translate("+a.x+","+a.y+") scale("+this.scale+")";this.svgBlockCanvas_.setAttribute("transform",a);this.svgBubbleCanvas_.setAttribute("transform",a)}};
+Blockly.WorkspaceSvg.prototype.setupDragSurface=function(){if(this.useWorkspaceDragSurface_&&!this.isDragSurfaceActive_){this.isDragSurfaceActive_=!0;var a=this.svgBlockCanvas_.previousSibling,b=parseInt(this.getParentSvg().getAttribute("width"),10),c=parseInt(this.getParentSvg().getAttribute("height"),10),d=Blockly.utils.getRelativeXY(this.svgBlockCanvas_);this.workspaceDragSurface_.setContentsAndShow(this.svgBlockCanvas_,this.svgBubbleCanvas_,a,b,c,this.scale);this.workspaceDragSurface_.translateSurface(d.x,
+d.y)}};Blockly.WorkspaceSvg.prototype.getBlockDragSurface=function(){return this.blockDragSurface_};Blockly.WorkspaceSvg.prototype.getWidth=function(){var a=this.getMetrics();return a?a.viewWidth/this.scale:0};
+Blockly.WorkspaceSvg.prototype.setVisible=function(a){this.scrollbar&&this.scrollbar.setContainerVisible(a);this.getFlyout()&&this.getFlyout().setContainerVisible(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);this.isVisible_=a};
+Blockly.WorkspaceSvg.prototype.render=function(){for(var a=this.getAllBlocks(!1),b=a.length-1;0<=b;b--)a[b].render(!1);if(this.currentGesture_)for(a=this.currentGesture_.getInsertionMarkers(),b=0;b<a.length;b++)a[b].render(!1)};Blockly.WorkspaceSvg.prototype.traceOn=function(){console.warn("Deprecated call to traceOn, delete this.")};
+Blockly.WorkspaceSvg.prototype.highlightBlock=function(a,b){if(void 0===b){for(var c=0,d;d=this.highlightedBlocks_[c];c++)d.setHighlighted(!1);this.highlightedBlocks_.length=0}if(d=a?this.getBlockById(a):null)(c=void 0===b||b)?-1==this.highlightedBlocks_.indexOf(d)&&this.highlightedBlocks_.push(d):Blockly.utils.arrayRemove(this.highlightedBlocks_,d),d.setHighlighted(c)};
+Blockly.WorkspaceSvg.prototype.paste=function(a){!this.rendered||a.getElementsByTagName("block").length>=this.remainingCapacity()||(this.currentGesture_&&this.currentGesture_.cancel(),"comment"==a.tagName.toLowerCase()?this.pasteWorkspaceComment_(a):this.pasteBlock_(a))};
+Blockly.WorkspaceSvg.prototype.pasteBlock_=function(a){Blockly.Events.disable();try{var b=Blockly.Xml.domToBlock(a,this),c=this.getMarker().getCurNode();if(Blockly.keyboardAccessibilityMode&&c){Blockly.navigation.insertBlock(b,c.getLocation());return}var d=parseInt(a.getAttribute("x"),10),e=parseInt(a.getAttribute("y"),10);if(!isNaN(d)&&!isNaN(e)){this.RTL&&(d=-d);do{a=!1;var f=this.getAllBlocks(!1);c=0;for(var g;g=f[c];c++){var h=g.getRelativeToSurfaceXY();if(1>=Math.abs(d-h.x)&&1>=Math.abs(e-h.y)){a=
+!0;break}}if(!a){var k=b.getConnections_(!1);c=0;for(var l;l=k[c];c++)if(l.closest(Blockly.SNAP_RADIUS,new Blockly.utils.Coordinate(d,e)).connection){a=!0;break}}a&&(d=this.RTL?d-Blockly.SNAP_RADIUS:d+Blockly.SNAP_RADIUS,e+=2*Blockly.SNAP_RADIUS)}while(a);b.moveBy(d,e)}}finally{Blockly.Events.enable()}Blockly.Events.isEnabled()&&!b.isShadow()&&Blockly.Events.fire(new Blockly.Events.BlockCreate(b));b.select()};
+Blockly.WorkspaceSvg.prototype.pasteWorkspaceComment_=function(a){Blockly.Events.disable();try{var b=Blockly.WorkspaceCommentSvg.fromXml(a,this),c=parseInt(a.getAttribute("x"),10),d=parseInt(a.getAttribute("y"),10);isNaN(c)||isNaN(d)||(this.RTL&&(c=-c),b.moveBy(c+50,d+50))}finally{Blockly.Events.enable()}Blockly.Events.isEnabled();b.select()};
+Blockly.WorkspaceSvg.prototype.refreshToolboxSelection=function(){var a=this.isFlyout?this.targetWorkspace:this;a&&!a.currentGesture_&&a.toolbox_&&a.toolbox_.flyout_&&a.toolbox_.refreshSelection()};Blockly.WorkspaceSvg.prototype.renameVariableById=function(a,b){Blockly.WorkspaceSvg.superClass_.renameVariableById.call(this,a,b);this.refreshToolboxSelection()};Blockly.WorkspaceSvg.prototype.deleteVariableById=function(a){Blockly.WorkspaceSvg.superClass_.deleteVariableById.call(this,a);this.refreshToolboxSelection()};
+Blockly.WorkspaceSvg.prototype.createVariable=function(a,b,c){a=Blockly.WorkspaceSvg.superClass_.createVariable.call(this,a,b,c);this.refreshToolboxSelection();return a};Blockly.WorkspaceSvg.prototype.recordDeleteAreas=function(){this.deleteAreaTrash_=this.trashcan&&this.svgGroup_.parentNode?this.trashcan.getClientRect():null;this.deleteAreaToolbox_=this.flyout_?this.flyout_.getClientRect():this.toolbox_?this.toolbox_.getClientRect():null};
+Blockly.WorkspaceSvg.prototype.isDeleteArea=function(a){return this.deleteAreaTrash_&&this.deleteAreaTrash_.contains(a.clientX,a.clientY)?Blockly.DELETE_AREA_TRASH:this.deleteAreaToolbox_&&this.deleteAreaToolbox_.contains(a.clientX,a.clientY)?Blockly.DELETE_AREA_TOOLBOX:Blockly.DELETE_AREA_NONE};Blockly.WorkspaceSvg.prototype.onMouseDown_=function(a){var b=this.getGesture(a);b&&b.handleWsStart(a,this)};
+Blockly.WorkspaceSvg.prototype.startDrag=function(a,b){var c=Blockly.utils.mouseToSvg(a,this.getParentSvg(),this.getInverseScreenCTM());c.x/=this.scale;c.y/=this.scale;this.dragDeltaXY_=Blockly.utils.Coordinate.difference(b,c)};Blockly.WorkspaceSvg.prototype.moveDrag=function(a){a=Blockly.utils.mouseToSvg(a,this.getParentSvg(),this.getInverseScreenCTM());a.x/=this.scale;a.y/=this.scale;return Blockly.utils.Coordinate.sum(this.dragDeltaXY_,a)};
+Blockly.WorkspaceSvg.prototype.isDragging=function(){return null!=this.currentGesture_&&this.currentGesture_.isDragging()};Blockly.WorkspaceSvg.prototype.isDraggable=function(){return this.options.moveOptions&&this.options.moveOptions.drag};
+Blockly.WorkspaceSvg.prototype.isContentBounded=function(){return this.options.moveOptions&&this.options.moveOptions.scrollbars||this.options.moveOptions&&this.options.moveOptions.wheel||this.options.moveOptions&&this.options.moveOptions.drag||this.options.zoomOptions&&this.options.zoomOptions.controls||this.options.zoomOptions&&this.options.zoomOptions.wheel};
+Blockly.WorkspaceSvg.prototype.isMovable=function(){return this.options.moveOptions&&this.options.moveOptions.scrollbars||this.options.moveOptions&&this.options.moveOptions.wheel||this.options.moveOptions&&this.options.moveOptions.drag||this.options.zoomOptions&&this.options.zoomOptions.wheel};
+Blockly.WorkspaceSvg.prototype.onMouseWheel_=function(a){if(Blockly.Gesture.inProgress())a.preventDefault(),a.stopPropagation();else{var b=this.options.zoomOptions&&this.options.zoomOptions.wheel,c=this.options.moveOptions&&this.options.moveOptions.wheel;if(b||c){var d=Blockly.utils.getScrollDeltaPixels(a);!b||!a.ctrlKey&&c?(b=this.scrollX-d.x,c=this.scrollY-d.y,a.shiftKey&&!d.x&&(b=this.scrollX-d.y,c=this.scrollY),this.scroll(b,c)):(d=-d.y/50,b=Blockly.utils.mouseToSvg(a,this.getParentSvg(),this.getInverseScreenCTM()),
+this.zoom(b.x,b.y,d));a.preventDefault()}}};Blockly.WorkspaceSvg.prototype.getBlocksBoundingBox=function(){var a=this.getTopBlocks(!1),b=this.getTopComments(!1);a=a.concat(b);if(!a.length)return new Blockly.utils.Rect(0,0,0,0);b=a[0].getBoundingRectangle();for(var c=1;c<a.length;c++){var d=a[c].getBoundingRectangle();d.top<b.top&&(b.top=d.top);d.bottom>b.bottom&&(b.bottom=d.bottom);d.left<b.left&&(b.left=d.left);d.right>b.right&&(b.right=d.right)}return b};
+Blockly.WorkspaceSvg.prototype.cleanUp=function(){this.setResizesEnabled(!1);Blockly.Events.setGroup(!0);for(var a=this.getTopBlocks(!0),b=0,c=0,d;d=a[c];c++)if(d.isMovable()){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);this.setResizesEnabled(!0)};
+Blockly.WorkspaceSvg.prototype.showContextMenu_=function(a){function b(a){if(a.isDeletable())p=p.concat(a.getDescendants(!1));else{a=a.getChildren(!1);for(var c=0;c<a.length;c++)b(a[c])}}function c(){Blockly.Events.setGroup(f);var a=p.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.utils.genUid(),g=this,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.isMovable()&&(h={},h.text=Blockly.Msg.CLEAN_UP,h.enabled=1<e.length,h.callback=this.cleanUp.bind(this),d.push(h));if(this.options.collapse){for(var k=h=!1,l=0;l<e.length;l++)for(var m=e[l];m;)m.isCollapsed()?h=!0:k=!0,m=m.getNextBlock();var n=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};k={enabled:k};k.text=Blockly.Msg.COLLAPSE_ALL;k.callback=function(){n(!0)};d.push(k);h={enabled:h};h.text=Blockly.Msg.EXPAND_ALL;h.callback=function(){n(!1)};d.push(h)}var p=[];for(l=0;l<e.length;l++)b(e[l]);h={text:1==p.length?Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(p.length)),enabled:0<p.length,callback:function(){g.currentGesture_&&g.currentGesture_.cancel();2>p.length?c():Blockly.confirm(Blockly.Msg.DELETE_ALL_BLOCKS.replace("%1",p.length),function(a){a&&
+c()})}};d.push(h);this.configureContextMenu&&this.configureContextMenu(d);Blockly.ContextMenu.show(a,d,this.RTL)}};
+Blockly.WorkspaceSvg.prototype.updateToolbox=function(a){if(a=Blockly.Options.parseToolboxTree(a)){if(!this.options.languageTree)throw Error("Existing toolbox is null.  Can't create new toolbox.");if(a.getElementsByTagName("category").length){if(!this.toolbox_)throw Error("Existing toolbox has no categories.  Can't change mode.");this.options.languageTree=a;a=this.toolbox_.populate_(a);this.toolbox_.addColour_();this.toolbox_.position();this.toolbox_.tree_.setSelectedItem(a)}else{if(!this.flyout_)throw Error("Existing toolbox has categories.  Can't change mode.");
+this.options.languageTree=a;this.flyout_.show(a.childNodes)}}else if(this.options.languageTree)throw Error("Can't nullify an existing toolbox.");};Blockly.WorkspaceSvg.prototype.markFocused=function(){this.options.parentWorkspace?this.options.parentWorkspace.markFocused():(Blockly.mainWorkspace=this,this.setBrowserFocus())};Blockly.WorkspaceSvg.prototype.setBrowserFocus=function(){document.activeElement&&document.activeElement.blur();try{this.getParentSvg().focus()}catch(a){try{this.getParentSvg().parentNode.setActive()}catch(b){this.getParentSvg().parentNode.focus()}}};
+Blockly.WorkspaceSvg.prototype.zoom=function(a,b,c){if(!this.isFlyout&&!this.isMutator){c=Math.pow(this.options.zoomOptions.scaleSpeed,c);var d=this.scale*c;if(this.scale!=d){d>this.options.zoomOptions.maxScale?c=this.options.zoomOptions.maxScale/this.scale:d<this.options.zoomOptions.minScale&&(c=this.options.zoomOptions.minScale/this.scale);var e=this.getCanvas().getCTM(),f=this.getParentSvg().createSVGPoint();f.x=a;f.y=b;f=f.matrixTransform(e.inverse());a=f.x;b=f.y;e=e.translate(a*(1-c),b*(1-c)).scale(c);
+this.scrollX=e.e;this.scrollY=e.f;this.setScale(d)}}};Blockly.WorkspaceSvg.prototype.zoomCenter=function(a){var b=this.getMetrics();if(this.flyout_){var c=b.svgWidth/2;b=b.svgHeight/2}else c=b.viewWidth/2+b.absoluteLeft,b=b.viewHeight/2+b.absoluteTop;this.zoom(c,b,a)};
+Blockly.WorkspaceSvg.prototype.zoomToFit=function(){if(this.isMovable()){var a=this.getMetrics(),b=a.viewWidth;a=a.viewHeight;var c=this.getBlocksBoundingBox(),d=c.right-c.left;c=c.bottom-c.top;d&&(this.flyout_&&(this.horizontalLayout?(a+=this.flyout_.height_,c+=this.flyout_.height_/this.scale):(b+=this.flyout_.getWidth(),d+=this.flyout_.getWidth()/this.scale)),this.setScale(Math.min(b/d,a/c)),this.scrollCenter())}else console.warn("Tried to move a non-movable workspace. This could result in blocks becoming inaccessible.")};
+Blockly.WorkspaceSvg.prototype.beginCanvasTransition=function(){Blockly.utils.dom.addClass(this.svgBlockCanvas_,"blocklyCanvasTransitioning");Blockly.utils.dom.addClass(this.svgBubbleCanvas_,"blocklyCanvasTransitioning")};Blockly.WorkspaceSvg.prototype.endCanvasTransition=function(){Blockly.utils.dom.removeClass(this.svgBlockCanvas_,"blocklyCanvasTransitioning");Blockly.utils.dom.removeClass(this.svgBubbleCanvas_,"blocklyCanvasTransitioning")};
+Blockly.WorkspaceSvg.prototype.scrollCenter=function(){if(this.isMovable()){var a=this.getMetrics(),b=(a.contentWidth-a.viewWidth)/2,c=(a.contentHeight-a.viewHeight)/2;b=-b-a.contentLeft;c=-c-a.contentTop;this.scroll(b,c)}else console.warn("Tried to move a non-movable workspace. This could result in blocks becoming inaccessible.")};
+Blockly.WorkspaceSvg.prototype.centerOnBlock=function(a){if(this.isMovable()){if(a=this.getBlockById(a)){var b=a.getRelativeToSurfaceXY(),c=a.getHeightWidth(),d=this.scale;a=(b.x+(this.RTL?-1:1)*c.width/2)*d;b=(b.y+c.height/2)*d;c=this.getMetrics();a=-(a-c.contentLeft-c.viewWidth/2)-c.contentLeft;b=-(b-c.contentTop-c.viewHeight/2)-c.contentTop;Blockly.hideChaff();this.scroll(a,b)}}else console.warn("Tried to move a non-movable workspace. This could result in blocks becoming inaccessible.")};
+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;Blockly.hideChaff(!1);this.flyout_&&(this.flyout_.reflow(),this.recordDeleteAreas());this.grid_&&this.grid_.update(this.scale);a=this.getMetrics();this.scrollX-=a.absoluteLeft;this.scrollY-=a.absoluteTop;a.viewLeft+=a.absoluteLeft;
+a.viewTop+=a.absoluteTop;this.scroll(this.scrollX,this.scrollY);this.scrollbar&&(this.flyout_?(this.scrollbar.hScroll.resizeViewHorizontal(a),this.scrollbar.vScroll.resizeViewVertical(a)):(this.scrollbar.hScroll.resizeContentHorizontal(a),this.scrollbar.vScroll.resizeContentVertical(a)))};
+Blockly.WorkspaceSvg.prototype.scroll=function(a,b){Blockly.hideChaff(!0);var c=this.getMetrics(),d=c.contentWidth+c.contentLeft-c.viewWidth,e=c.contentHeight+c.contentTop-c.viewHeight;a=Math.min(a,-c.contentLeft);b=Math.min(b,-c.contentTop);a=Math.max(a,-d);b=Math.max(b,-e);this.scrollX=a;this.scrollY=b;this.scrollbar&&(this.scrollbar.hScroll.setHandlePosition(-(a+c.contentLeft)*this.scrollbar.hScroll.ratio_),this.scrollbar.vScroll.setHandlePosition(-(b+c.contentTop)*this.scrollbar.vScroll.ratio_));
+a+=c.absoluteLeft;b+=c.absoluteTop;this.translate(a,b)};Blockly.WorkspaceSvg.getDimensionsPx_=function(a){var b=0,c=0;a&&(b=a.getWidth(),c=a.getHeight());return{width:b,height:c}};Blockly.WorkspaceSvg.getContentDimensions_=function(a,b){return a.isContentBounded()?Blockly.WorkspaceSvg.getContentDimensionsBounded_(a,b):Blockly.WorkspaceSvg.getContentDimensionsExact_(a)};
+Blockly.WorkspaceSvg.getContentDimensionsExact_=function(a){var b=a.getBlocksBoundingBox(),c=a.scale;a=b.top*c;var d=b.bottom*c,e=b.left*c;b=b.right*c;return{top:a,bottom:d,left:e,right:b,width:b-e,height:d-a}};
+Blockly.WorkspaceSvg.getContentDimensionsBounded_=function(a,b){var c=Blockly.WorkspaceSvg.getContentDimensionsExact_(a),d=b.width,e=b.height,f=d/2,g=e/2,h=Math.min(c.left-f,c.right-d),k=Math.min(c.top-g,c.bottom-e);return{left:h,top:k,height:Math.max(c.bottom+g,c.top+e)-k,width:Math.max(c.right+f,c.left+d)-h}};
+Blockly.WorkspaceSvg.getTopLevelWorkspaceMetrics_=function(){var a=Blockly.WorkspaceSvg.getDimensionsPx_(this.toolbox_),b=Blockly.WorkspaceSvg.getDimensionsPx_(this.flyout_),c=Blockly.svgSize(this.getParentSvg()),d={height:c.height,width:c.width};if(this.toolbox_)if(this.toolboxPosition==Blockly.TOOLBOX_AT_TOP||this.toolboxPosition==Blockly.TOOLBOX_AT_BOTTOM)d.height-=a.height;else{if(this.toolboxPosition==Blockly.TOOLBOX_AT_LEFT||this.toolboxPosition==Blockly.TOOLBOX_AT_RIGHT)d.width-=a.width}else if(this.flyout_)if(this.toolboxPosition==
+Blockly.TOOLBOX_AT_TOP||this.toolboxPosition==Blockly.TOOLBOX_AT_BOTTOM)d.height-=b.height;else if(this.toolboxPosition==Blockly.TOOLBOX_AT_LEFT||this.toolboxPosition==Blockly.TOOLBOX_AT_RIGHT)d.width-=b.width;var e=Blockly.WorkspaceSvg.getContentDimensions_(this,d),f=0;this.toolbox_&&this.toolboxPosition==Blockly.TOOLBOX_AT_LEFT?f=a.width:this.flyout_&&this.toolboxPosition==Blockly.TOOLBOX_AT_LEFT&&(f=b.width);var g=0;this.toolbox_&&this.toolboxPosition==Blockly.TOOLBOX_AT_TOP?g=a.height:this.flyout_&&
+this.toolboxPosition==Blockly.TOOLBOX_AT_TOP&&(g=b.height);return{contentHeight:e.height,contentWidth:e.width,contentTop:e.top,contentLeft:e.left,viewHeight:d.height,viewWidth:d.width,viewTop:-this.scrollY,viewLeft:-this.scrollX,absoluteTop:g,absoluteLeft:f,svgHeight:c.height,svgWidth:c.width,toolboxWidth:a.width,toolboxHeight:a.height,flyoutWidth:b.width,flyoutHeight:b.height,toolboxPosition:this.toolboxPosition}};
+Blockly.WorkspaceSvg.setTopLevelWorkspaceMetrics_=function(a){var b=this.getMetrics();"number"==typeof a.x&&(this.scrollX=-b.contentWidth*a.x-b.contentLeft);"number"==typeof a.y&&(this.scrollY=-b.contentHeight*a.y-b.contentTop);this.translate(this.scrollX+b.absoluteLeft,this.scrollY+b.absoluteTop)};Blockly.WorkspaceSvg.prototype.setResizesEnabled=function(a){var b=!this.resizesEnabled_&&a;this.resizesEnabled_=a;b&&this.resizeContents()};
+Blockly.WorkspaceSvg.prototype.clear=function(){this.setResizesEnabled(!1);Blockly.WorkspaceSvg.superClass_.clear.call(this);this.setResizesEnabled(!0)};Blockly.WorkspaceSvg.prototype.registerButtonCallback=function(a,b){if("function"!=typeof b)throw TypeError("Button callbacks must be functions.");this.flyoutButtonCallbacks_[a]=b};Blockly.WorkspaceSvg.prototype.getButtonCallback=function(a){return(a=this.flyoutButtonCallbacks_[a])?a:null};
+Blockly.WorkspaceSvg.prototype.removeButtonCallback=function(a){this.flyoutButtonCallbacks_[a]=null};Blockly.WorkspaceSvg.prototype.registerToolboxCategoryCallback=function(a,b){if("function"!=typeof b)throw TypeError("Toolbox category callbacks must be functions.");this.toolboxCategoryCallbacks_[a]=b};Blockly.WorkspaceSvg.prototype.getToolboxCategoryCallback=function(a){return this.toolboxCategoryCallbacks_[a]||null};
+Blockly.WorkspaceSvg.prototype.removeToolboxCategoryCallback=function(a){this.toolboxCategoryCallbacks_[a]=null};Blockly.WorkspaceSvg.prototype.getGesture=function(a){var b="mousedown"==a.type||"touchstart"==a.type||"pointerdown"==a.type,c=this.currentGesture_;return c?b&&c.hasStarted()?(console.warn("Tried to start the same gesture twice."),c.cancel(),null):c:b?this.currentGesture_=new Blockly.TouchGesture(a,this):null};
+Blockly.WorkspaceSvg.prototype.clearGesture=function(){this.currentGesture_=null};Blockly.WorkspaceSvg.prototype.cancelCurrentGesture=function(){this.currentGesture_&&this.currentGesture_.cancel()};Blockly.WorkspaceSvg.prototype.getAudioManager=function(){return this.audioManager_};Blockly.WorkspaceSvg.prototype.getGrid=function(){return this.grid_};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.workspace_.setCursor(new Blockly.FlyoutCursor);this.workspace_.setMarker(new Blockly.MarkerCursor);this.RTL=!!a.RTL;this.toolboxPosition_=a.toolboxPosition;this.eventWrappers_=[];this.mats_=[];this.buttons_=[];this.listeners_=[];this.permanentlyDisabled_=[];this.tabWidth_=this.workspace_.getRenderer().getConstants().TAB_WIDTH};
 Blockly.Flyout.prototype.autoClose=!0;Blockly.Flyout.prototype.isVisible_=!1;Blockly.Flyout.prototype.containerVisible_=!0;Blockly.Flyout.prototype.CORNER_RADIUS=8;Blockly.Flyout.prototype.MARGIN=Blockly.Flyout.prototype.CORNER_RADIUS;Blockly.Flyout.prototype.GAP_X=3*Blockly.Flyout.prototype.MARGIN;Blockly.Flyout.prototype.GAP_Y=3*Blockly.Flyout.prototype.MARGIN;Blockly.Flyout.prototype.SCROLLBAR_PADDING=2;Blockly.Flyout.prototype.width_=0;Blockly.Flyout.prototype.height_=0;
 Blockly.Flyout.prototype.dragAngleRange_=70;Blockly.Flyout.prototype.createDom=function(a){this.svgGroup_=Blockly.utils.dom.createSvgElement(a,{"class":"blocklyFlyout",style:"display: none"},null);this.svgBackground_=Blockly.utils.dom.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_,this.horizontalLayout_,!1,"blocklyFlyoutScrollbar");this.hide();Array.prototype.push.apply(this.eventWrappers_,Blockly.bindEventWithChecks_(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_,
@@ -1018,7 +979,7 @@ Blockly.selected&&Blockly.selected.isDeletable()&&(c=!0)}else if(a.altKey||a.ctr
 a.isFlyout&&(a=a.targetWorkspace),Blockly.clipboardTypeCounts_&&a.isCapacityAvailable(Blockly.clipboardTypeCounts_)&&(Blockly.Events.setGroup(!0),a.paste(Blockly.clipboardXml_),Blockly.Events.setGroup(!1))):a.keyCode==Blockly.utils.KeyCodes.Z&&(Blockly.hideChaff(),b.undo(a.shiftKey))}}c&&!Blockly.selected.workspace.isFlyout&&(Blockly.Events.setGroup(!0),Blockly.hideChaff(),Blockly.selected.dispose(!0,!0),Blockly.Events.setGroup(!1))}};
 Blockly.copy_=function(a){if(a.isComment)var b=a.toXmlWithXY();else{b=Blockly.Xml.blockToDom(a,!0);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.clipboardTypeCounts_=a.isComment?null:Blockly.utils.getBlockTypeCounts(a,!0)};
 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.utils.isTargetInput(a)||a.preventDefault()};
-Blockly.hideChaff=function(a){Blockly.Tooltip.hide();Blockly.WidgetDiv.hide();Blockly.DropDownDiv.hideWithoutAnimation();var b=Blockly.getMainWorkspace();b.trashcan&&b.trashcan.flyout_&&b.trashcan.flyout_.hide();a||b.toolbox_&&b.toolbox_.flyout_&&b.toolbox_.flyout_.autoClose&&b.toolbox_.clearSelection()};Blockly.getMainWorkspace=function(){return Blockly.mainWorkspace};Blockly.alert=function(a,b){alert(a);b&&b()};Blockly.confirm=function(a,b){b(confirm(a))};
+Blockly.hideChaff=function(a){Blockly.Tooltip.hide();Blockly.WidgetDiv.hide();Blockly.DropDownDiv.hideWithoutAnimation();a||(a=Blockly.getMainWorkspace(),a.trashcan&&a.trashcan.flyout_&&a.trashcan.flyout_.hide(),a.toolbox_&&a.toolbox_.flyout_&&a.toolbox_.flyout_.autoClose&&a.toolbox_.clearSelection())};Blockly.getMainWorkspace=function(){return Blockly.mainWorkspace};Blockly.alert=function(a,b){alert(a);b&&b()};Blockly.confirm=function(a,b){b(confirm(a))};
 Blockly.prompt=function(a,b,c){c(prompt(a,b))};Blockly.jsonInitFactory_=function(a){return function(){this.jsonInit(a)}};
 Blockly.defineBlocksWithJsonArray=function(a){for(var b=0;b<a.length;b++){var c=a[b];if(c){var d=c.type;null==d||""===d?console.warn("Block definition #"+b+" in JSON array is missing a type attribute. Skipping."):(Blockly.Blocks[d]&&console.warn("Block definition #"+b+' in JSON array overwrites prior definition of "'+d+'".'),Blockly.Blocks[d]={init:Blockly.jsonInitFactory_(c)})}else console.warn("Block definition #"+b+" in JSON array is "+c+". Skipping.")}};
 Blockly.bindEventWithChecks_=function(a,b,c,d,e,f){var g=!1,h=function(a){var b=!e;a=Blockly.Touch.splitEventByTouches(a);for(var f=0,h;h=a[f];f++)if(!b||Blockly.Touch.shouldHandleEvent(h))Blockly.Touch.setClientFromTouch(h),c?d.call(c,h):d(h),g=!0},k=[];if(Blockly.utils.global.PointerEvent&&b in Blockly.Touch.TOUCH_MAP)for(var l=0,m;m=Blockly.Touch.TOUCH_MAP[b][l];l++)a.addEventListener(m,h,!1),k.push([a,m,h]);else if(a.addEventListener(b,h,!1),k.push([a,b,h]),b in Blockly.Touch.TOUCH_MAP){var n=
@@ -1075,33 +1036,33 @@ Blockly.FieldColour.prototype.setHighlightedCell_=function(a,b){var c=this.getHi
 Blockly.FieldColour.prototype.dropdownCreate_=function(){var a=this.columns_||Blockly.FieldColour.COLUMNS,b=this.colours_||Blockly.FieldColour.COLOURS,c=this.titles_||Blockly.FieldColour.TITLES,d=this.getValue(),e=document.createElement("table");e.className="blocklyColourTable";e.tabIndex=0;Blockly.utils.aria.setRole(e,Blockly.utils.aria.Role.GRID);Blockly.utils.aria.setState(e,Blockly.utils.aria.State.EXPANDED,!0);Blockly.utils.aria.setState(e,"rowcount",Math.floor(b.length/a));Blockly.utils.aria.setState(e,
 "colcount",a);for(var f,g=Blockly.utils.IdGenerator.getInstance(),h=0;h<b.length;h++){0==h%a&&(f=document.createElement("tr"),Blockly.utils.aria.setRole(f,Blockly.utils.aria.Role.ROW),e.appendChild(f));var k=document.createElement("td");f.appendChild(k);k.label=b[h];k.title=c[h]||b[h];k.id=g.getNextUniqueId();k.setAttribute("data-index",h);Blockly.utils.aria.setRole(k,Blockly.utils.aria.Role.GRIDCELL);Blockly.utils.aria.setState(k,Blockly.utils.aria.State.LABEL,b[h]);Blockly.utils.aria.setState(k,
 Blockly.utils.aria.State.SELECTED,b[h]==d);k.style.backgroundColor=b[h];b[h]==d&&(k.className="blocklyColourSelected",this.highlightedIndex_=h)}this.onClickWrapper_=Blockly.bindEventWithChecks_(e,"click",this,this.onClick_,!0);this.onMouseMoveWrapper_=Blockly.bindEventWithChecks_(e,"mousemove",this,this.onMouseMove_,!0);this.onMouseEnterWrapper_=Blockly.bindEventWithChecks_(e,"mouseenter",this,this.onMouseEnter_,!0);this.onMouseLeaveWrapper_=Blockly.bindEventWithChecks_(e,"mouseleave",this,this.onMouseLeave_,
-!0);this.onKeyDownWrapper_=Blockly.bindEventWithChecks_(e,"keydown",this,this.onKeyDown_);return e};Blockly.FieldColour.prototype.dropdownDispose_=function(){Blockly.unbindEvent_(this.onClickWrapper_);Blockly.unbindEvent_(this.onMouseMoveWrapper_);Blockly.unbindEvent_(this.onMouseEnterWrapper_);Blockly.unbindEvent_(this.onMouseLeaveWrapper_);Blockly.unbindEvent_(this.onKeyDownWrapper_)};Blockly.fieldRegistry.register("field_colour",Blockly.FieldColour);Blockly.FieldDropdown=function(a,b){"function"!=typeof a&&Blockly.FieldDropdown.validateOptions_(a);this.menuGenerator_=a;this.selectedIndex_=-1;this.trimOptions_();var c=this.getOptions()[0];Blockly.FieldDropdown.superClass_.constructor.call(this,c[1],b);this.selectedMenuItem_=this.imageElement_=null};Blockly.utils.object.inherits(Blockly.FieldDropdown,Blockly.Field);Blockly.FieldDropdown.fromJson=function(a){return new Blockly.FieldDropdown(a.options)};
+!0);this.onKeyDownWrapper_=Blockly.bindEventWithChecks_(e,"keydown",this,this.onKeyDown_);return e};Blockly.FieldColour.prototype.dropdownDispose_=function(){Blockly.unbindEvent_(this.onClickWrapper_);Blockly.unbindEvent_(this.onMouseMoveWrapper_);Blockly.unbindEvent_(this.onMouseEnterWrapper_);Blockly.unbindEvent_(this.onMouseLeaveWrapper_);Blockly.unbindEvent_(this.onKeyDownWrapper_)};Blockly.fieldRegistry.register("field_colour",Blockly.FieldColour);Blockly.FieldDropdown=function(a,b){"function"!=typeof a&&Blockly.FieldDropdown.validateOptions_(a);this.menuGenerator_=a;this.generatedOptions_=null;this.selectedIndex_=0;this.trimOptions_();var c=this.getOptions(!1)[0];Blockly.FieldDropdown.superClass_.constructor.call(this,c[1],b);this.selectedMenuItem_=this.imageElement_=null};Blockly.utils.object.inherits(Blockly.FieldDropdown,Blockly.Field);Blockly.FieldDropdown.fromJson=function(a){return new Blockly.FieldDropdown(a.options)};
 Blockly.FieldDropdown.prototype.SERIALIZABLE=!0;Blockly.FieldDropdown.CHECKMARK_OVERHANG=25;Blockly.FieldDropdown.MAX_MENU_HEIGHT_VH=.45;Blockly.FieldDropdown.IMAGE_Y_OFFSET=5;Blockly.FieldDropdown.IMAGE_Y_PADDING=2*Blockly.FieldDropdown.IMAGE_Y_OFFSET;Blockly.FieldDropdown.ARROW_CHAR=Blockly.utils.userAgent.ANDROID?"\u25bc":"\u25be";Blockly.FieldDropdown.prototype.CURSOR="default";
 Blockly.FieldDropdown.prototype.initView=function(){Blockly.FieldDropdown.superClass_.initView.call(this);this.imageElement_=Blockly.utils.dom.createSvgElement("image",{y:Blockly.FieldDropdown.IMAGE_Y_OFFSET},this.fieldGroup_);this.arrow_=Blockly.utils.dom.createSvgElement("tspan",{},this.textElement_);this.arrow_.appendChild(document.createTextNode(this.sourceBlock_.RTL?Blockly.FieldDropdown.ARROW_CHAR+" ":" "+Blockly.FieldDropdown.ARROW_CHAR));this.sourceBlock_.RTL?this.textElement_.insertBefore(this.arrow_,
 this.textContent_):this.textElement_.appendChild(this.arrow_)};
 Blockly.FieldDropdown.prototype.showEditor_=function(){Blockly.WidgetDiv.show(this,this.sourceBlock_.RTL,this.widgetDispose_.bind(this));this.menu_=this.widgetCreate_();this.menu_.render(Blockly.WidgetDiv.DIV);Blockly.utils.dom.addClass(this.menu_.getElement(),"blocklyDropdownMenu");this.positionMenu_(this.menu_);this.menu_.focus();this.selectedMenuItem_&&Blockly.utils.style.scrollIntoContainerView(this.selectedMenuItem_.getElement(),this.menu_.getElement())};
-Blockly.FieldDropdown.prototype.widgetCreate_=function(){var a=new Blockly.Menu;a.setRightToLeft(this.sourceBlock_.RTL);a.setRole("listbox");for(var b=this.getOptions(),c=0;c<b.length;c++){var d=b[c][0],e=b[c][1];if("object"==typeof d){var f=new Image(d.width,d.height);f.src=d.src;f.alt=d.alt||"";d=f}d=new Blockly.MenuItem(d);d.setRole("option");d.setRightToLeft(this.sourceBlock_.RTL);d.setValue(e);d.setCheckable(!0);a.addChild(d,!0);d.setChecked(e==this.value_);e==this.value_&&(this.selectedMenuItem_=
-d);d.onAction(this.handleMenuActionEvent_,this)}Blockly.utils.aria.setState(a.getElement(),Blockly.utils.aria.State.ACTIVEDESCENDANT,this.selectedMenuItem_?this.selectedMenuItem_.getId():"");return a};Blockly.FieldDropdown.prototype.widgetDispose_=function(){this.menu_.dispose()};Blockly.FieldDropdown.prototype.handleMenuActionEvent_=function(a){Blockly.WidgetDiv.hideIfOwner(this);this.onItemSelected(this.menu_,a)};
+Blockly.FieldDropdown.prototype.widgetCreate_=function(){var a=new Blockly.Menu;a.setRightToLeft(this.sourceBlock_.RTL);a.setRole("listbox");var b=this.getOptions(!1);this.selectedMenuItem_=null;for(var c=0;c<b.length;c++){var d=b[c][0],e=b[c][1];if("object"==typeof d){var f=new Image(d.width,d.height);f.src=d.src;f.alt=d.alt||"";d=f}d=new Blockly.MenuItem(d);d.setRole("option");d.setRightToLeft(this.sourceBlock_.RTL);d.setValue(e);d.setCheckable(!0);a.addChild(d,!0);d.setChecked(e==this.value_);
+e==this.value_&&(this.selectedMenuItem_=d);d.onAction(this.handleMenuActionEvent_,this)}Blockly.utils.aria.setState(a.getElement(),Blockly.utils.aria.State.ACTIVEDESCENDANT,this.selectedMenuItem_?this.selectedMenuItem_.getId():"");return a};Blockly.FieldDropdown.prototype.widgetDispose_=function(){this.menu_.dispose()};Blockly.FieldDropdown.prototype.handleMenuActionEvent_=function(a){Blockly.WidgetDiv.hideIfOwner(this);this.onItemSelected(this.menu_,a)};
 Blockly.FieldDropdown.prototype.positionMenu_=function(a){var b=Blockly.utils.getViewportBBox(),c=this.getAnchorDimensions_();a=Blockly.utils.uiMenu.getSize(a);var d=Blockly.FieldDropdown.MAX_MENU_HEIGHT_VH*document.documentElement.clientHeight;a.height>d&&(a.height=d);this.sourceBlock_.RTL&&Blockly.utils.uiMenu.adjustBBoxesForRTL(b,c,a);Blockly.WidgetDiv.positionWithAnchor(b,c,a,this.sourceBlock_.RTL)};
 Blockly.FieldDropdown.prototype.getAnchorDimensions_=function(){var a=this.getScaledBBox_();this.sourceBlock_.RTL?a.right+=Blockly.FieldDropdown.CHECKMARK_OVERHANG:a.left-=Blockly.FieldDropdown.CHECKMARK_OVERHANG;return a};Blockly.FieldDropdown.prototype.onItemSelected=function(a,b){this.setValue(b.getValue())};
 Blockly.FieldDropdown.prototype.trimOptions_=function(){this.suffixField=this.prefixField=null;var a=this.menuGenerator_;if(Array.isArray(a)){for(var b=!1,c=0;c<a.length;c++){var d=a[c][0];"string"==typeof d?a[c][0]=Blockly.utils.replaceMessageReferences(d):(null!=d.alt&&(a[c][0].alt=Blockly.utils.replaceMessageReferences(d.alt)),b=!0)}if(!(b||2>a.length)){b=[];for(c=0;c<a.length;c++)b.push(a[c][0]);c=Blockly.utils.string.shortestStringLength(b);d=Blockly.utils.string.commonWordPrefix(b,c);var e=
 Blockly.utils.string.commonWordSuffix(b,c);!d&&!e||c<=d+e||(d&&(this.prefixField=b[0].substring(0,d-1)),e&&(this.suffixField=b[0].substr(1-e)),this.menuGenerator_=Blockly.FieldDropdown.applyTrim_(a,d,e))}}};Blockly.FieldDropdown.applyTrim_=function(a,b,c){for(var d=[],e=0;e<a.length;e++){var f=a[e][0],g=a[e][1];f=f.substring(b,f.length-c);d[e]=[f,g]}return d};Blockly.FieldDropdown.prototype.isOptionListDynamic=function(){return"function"==typeof this.menuGenerator_};
-Blockly.FieldDropdown.prototype.getOptions=function(){if(this.isOptionListDynamic()){var a=this.menuGenerator_.call(this);Blockly.FieldDropdown.validateOptions_(a);return a}return this.menuGenerator_};
-Blockly.FieldDropdown.prototype.doClassValidation_=function(a){for(var b=!1,c=this.getOptions(),d=0,e;e=c[d];d++)if(e[1]==a){b=!0;break}return b?a:(this.sourceBlock_&&console.warn("Cannot set the dropdown's value to an unavailable option. Block type: "+this.sourceBlock_.type+", Field name: "+this.name+", Value: "+a),null)};
-Blockly.FieldDropdown.prototype.doValueUpdate_=function(a){Blockly.FieldDropdown.superClass_.doValueUpdate_.call(this,a);a=this.getOptions();for(var b=0,c;c=a[b];b++)c[1]==this.value_&&(this.selectedIndex_=b)};Blockly.FieldDropdown.prototype.updateColour=function(){this.sourceBlock_&&this.arrow_&&(this.sourceBlock_.isShadow()?this.arrow_.style.fill=this.sourceBlock_.getColourShadow():this.arrow_.style.fill=this.sourceBlock_.getColour())};
-Blockly.FieldDropdown.prototype.render_=function(){this.textContent_.nodeValue="";this.imageElement_.style.display="none";var a=this.getOptions();(a=0<=this.selectedIndex_&&a[this.selectedIndex_][0])&&"object"==typeof a?this.renderSelectedImage_(a):this.renderSelectedText_();this.borderRect_.setAttribute("height",this.size_.height);this.borderRect_.setAttribute("width",this.size_.width)};
+Blockly.FieldDropdown.prototype.getOptions=function(a){return this.isOptionListDynamic()?(this.generatedOptions_&&a||(this.generatedOptions_=this.menuGenerator_.call(this),Blockly.FieldDropdown.validateOptions_(this.generatedOptions_)),this.generatedOptions_):this.menuGenerator_};
+Blockly.FieldDropdown.prototype.doClassValidation_=function(a){for(var b=!1,c=this.getOptions(!0),d=0,e;e=c[d];d++)if(e[1]==a){b=!0;break}return b?a:(this.sourceBlock_&&console.warn("Cannot set the dropdown's value to an unavailable option. Block type: "+this.sourceBlock_.type+", Field name: "+this.name+", Value: "+a),null)};
+Blockly.FieldDropdown.prototype.doValueUpdate_=function(a){Blockly.FieldDropdown.superClass_.doValueUpdate_.call(this,a);a=this.getOptions(!0);for(var b=0,c;c=a[b];b++)c[1]==this.value_&&(this.selectedIndex_=b)};Blockly.FieldDropdown.prototype.updateColour=function(){this.sourceBlock_&&this.arrow_&&(this.sourceBlock_.isShadow()?this.arrow_.style.fill=this.sourceBlock_.getColourShadow():this.arrow_.style.fill=this.sourceBlock_.getColour())};
+Blockly.FieldDropdown.prototype.render_=function(){this.textContent_.nodeValue="";this.imageElement_.style.display="none";var a=this.getOptions(!0);(a=0<=this.selectedIndex_&&a[this.selectedIndex_][0])&&"object"==typeof a?this.renderSelectedImage_(a):this.renderSelectedText_();this.borderRect_.setAttribute("height",this.size_.height);this.borderRect_.setAttribute("width",this.size_.width)};
 Blockly.FieldDropdown.prototype.renderSelectedImage_=function(a){this.imageElement_.style.display="";this.imageElement_.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",a.src);this.imageElement_.setAttribute("height",a.height);this.imageElement_.setAttribute("width",a.width);var b=Blockly.utils.dom.getTextWidth(this.arrow_),c=Number(a.width);this.size_.height=Number(a.height)+Blockly.FieldDropdown.IMAGE_Y_PADDING;this.size_.width=c+b+Blockly.Field.X_PADDING;this.sourceBlock_.RTL?(a=Blockly.Field.DEFAULT_TEXT_OFFSET-
 1,this.imageElement_.setAttribute("x",Blockly.Field.DEFAULT_TEXT_OFFSET+b),this.textElement_.setAttribute("x",a)):(a=c+b+Blockly.Field.DEFAULT_TEXT_OFFSET+1,this.textElement_.setAttribute("text-anchor","end"),this.textElement_.setAttribute("x",a),this.imageElement_.setAttribute("x",Blockly.Field.DEFAULT_TEXT_OFFSET))};
 Blockly.FieldDropdown.prototype.renderSelectedText_=function(){this.textContent_.nodeValue=this.getDisplayText_();this.textElement_.setAttribute("text-anchor","start");this.textElement_.setAttribute("x",Blockly.Field.DEFAULT_TEXT_OFFSET);this.size_.height=Blockly.Field.BORDER_RECT_DEFAULT_HEIGHT;this.size_.width=Blockly.utils.dom.getTextWidth(this.textElement_)+Blockly.Field.X_PADDING};
-Blockly.FieldDropdown.prototype.getText_=function(){if(0>this.selectedIndex_)return null;var a=this.getOptions()[this.selectedIndex_][0];return"object"==typeof a?a.alt:a};
-Blockly.FieldDropdown.validateOptions_=function(a){if(!Array.isArray(a))throw TypeError("FieldDropdown options must be an array.");for(var b=!1,c=0;c<a.length;++c){var d=a[c];Array.isArray(d)?"string"!=typeof d[1]?(b=!0,console.error("Invalid option["+c+"]: Each FieldDropdown option id must be a string. Found "+d[1]+" in: ",d)):d[0]&&"string"!=typeof d[0]&&"string"!=typeof d[0].src&&(b=!0,console.error("Invalid option["+c+"]: Each FieldDropdown option must have a string label or image description. Found"+
-d[0]+" in: ",d)):(b=!0,console.error("Invalid option["+c+"]: Each FieldDropdown option must be an array. Found: ",d))}if(b)throw TypeError("Found invalid FieldDropdown options.");};Blockly.fieldRegistry.register("field_dropdown",Blockly.FieldDropdown);Blockly.FieldImage=function(a,b,c,d,e,f,g){if(!a)throw Error("Src value of an image field is required");a=Blockly.utils.replaceMessageReferences(a);c=Number(Blockly.utils.replaceMessageReferences(c));b=Number(Blockly.utils.replaceMessageReferences(b));if(isNaN(c)||isNaN(b))throw Error("Height and width values of an image field must cast to numbers.");if(0>=c||0>=b)throw Error("Height and width values of an image field must be greater than 0.");this.flipRtl_=!1;this.altText_="";Blockly.FieldImage.superClass_.constructor.call(this,
+Blockly.FieldDropdown.prototype.getText_=function(){if(0>this.selectedIndex_)return null;var a=this.getOptions(!0)[this.selectedIndex_][0];return"object"==typeof a?a.alt:a};
+Blockly.FieldDropdown.validateOptions_=function(a){if(!Array.isArray(a))throw TypeError("FieldDropdown options must be an array.");if(!a.length)throw TypeError("FieldDropdown options must not be an empty array.");for(var b=!1,c=0;c<a.length;++c){var d=a[c];Array.isArray(d)?"string"!=typeof d[1]?(b=!0,console.error("Invalid option["+c+"]: Each FieldDropdown option id must be a string. Found "+d[1]+" in: ",d)):d[0]&&"string"!=typeof d[0]&&"string"!=typeof d[0].src&&(b=!0,console.error("Invalid option["+
+c+"]: Each FieldDropdown option must have a string label or image description. Found"+d[0]+" in: ",d)):(b=!0,console.error("Invalid option["+c+"]: Each FieldDropdown option must be an array. Found: ",d))}if(b)throw TypeError("Found invalid FieldDropdown options.");};Blockly.fieldRegistry.register("field_dropdown",Blockly.FieldDropdown);Blockly.FieldImage=function(a,b,c,d,e,f,g){if(!a)throw Error("Src value of an image field is required");a=Blockly.utils.replaceMessageReferences(a);c=Number(Blockly.utils.replaceMessageReferences(c));b=Number(Blockly.utils.replaceMessageReferences(b));if(isNaN(c)||isNaN(b))throw Error("Height and width values of an image field must cast to numbers.");if(0>=c||0>=b)throw Error("Height and width values of an image field must be greater than 0.");this.flipRtl_=!1;this.altText_="";Blockly.FieldImage.superClass_.constructor.call(this,
 a||"",null,g);g||(this.flipRtl_=!!f,this.altText_=Blockly.utils.replaceMessageReferences(d)||"");this.size_=new Blockly.utils.Size(b,c+Blockly.FieldImage.Y_PADDING);this.imageHeight_=c;this.clickHandler_=null;"function"==typeof e&&(this.clickHandler_=e)};Blockly.utils.object.inherits(Blockly.FieldImage,Blockly.Field);Blockly.FieldImage.fromJson=function(a){return new Blockly.FieldImage(a.src,a.width,a.height,null,null,null,a)};Blockly.FieldImage.Y_PADDING=1;Blockly.FieldImage.prototype.EDITABLE=!1;
 Blockly.FieldImage.prototype.isDirty_=!1;Blockly.FieldImage.prototype.configure_=function(a){Blockly.FieldImage.superClass_.configure_.call(this,a);this.flipRtl_=!!a.flipRtl;this.altText_=Blockly.utils.replaceMessageReferences(a.alt)||""};
 Blockly.FieldImage.prototype.initView=function(){this.imageElement_=Blockly.utils.dom.createSvgElement("image",{height:this.imageHeight_+"px",width:this.size_.width+"px",alt:this.altText_},this.fieldGroup_);this.imageElement_.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",this.value_)};Blockly.FieldImage.prototype.doClassValidation_=function(a){return"string"!=typeof a?null:a};
 Blockly.FieldImage.prototype.doValueUpdate_=function(a){this.value_=a;this.imageElement_&&this.imageElement_.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",this.value_||"")};Blockly.FieldImage.prototype.getFlipRtl=function(){return this.flipRtl_};Blockly.FieldImage.prototype.setAlt=function(a){a!=this.altText_&&(this.altText_=a||"",this.imageElement_&&this.imageElement_.setAttribute("alt",this.altText_))};Blockly.FieldImage.prototype.showEditor_=function(){this.clickHandler_&&this.clickHandler_(this)};
 Blockly.FieldImage.prototype.setOnClickHandler=function(a){this.clickHandler_=a};Blockly.FieldImage.prototype.getText_=function(){return this.altText_};Blockly.fieldRegistry.register("field_image",Blockly.FieldImage);Blockly.FieldLabelSerializable=function(a,b,c){Blockly.FieldLabelSerializable.superClass_.constructor.call(this,a,b,c)};Blockly.utils.object.inherits(Blockly.FieldLabelSerializable,Blockly.FieldLabel);Blockly.FieldLabelSerializable.fromJson=function(a){var b=Blockly.utils.replaceMessageReferences(a.text);return new Blockly.FieldLabelSerializable(b,null,a)};Blockly.FieldLabelSerializable.prototype.EDITABLE=!1;Blockly.FieldLabelSerializable.prototype.SERIALIZABLE=!0;
-Blockly.fieldRegistry.register("field_label_serializable",Blockly.FieldLabelSerializable);Blockly.FieldMultilineInput=function(a,b){null===a&&(a="");Blockly.FieldMultilineInput.superClass_.constructor.call(this,a,b)};Blockly.utils.object.inherits(Blockly.FieldMultilineInput,Blockly.FieldTextInput);Blockly.FieldMultilineInput.LINE_HEIGHT=20;Blockly.FieldMultilineInput.fromJson=function(a){var b=Blockly.utils.replaceMessageReferences(a.text);b=new Blockly.FieldMultilineInput(b);"boolean"===typeof a.spellcheck&&b.setSpellcheck(a.spellcheck);return b};
+Blockly.fieldRegistry.register("field_label_serializable",Blockly.FieldLabelSerializable);Blockly.FieldMultilineInput=function(a,b,c){null==a&&(a="");Blockly.FieldMultilineInput.superClass_.constructor.call(this,a,b,c)};Blockly.utils.object.inherits(Blockly.FieldMultilineInput,Blockly.FieldTextInput);Blockly.FieldMultilineInput.LINE_HEIGHT=20;Blockly.FieldMultilineInput.fromJson=function(a){var b=Blockly.utils.replaceMessageReferences(a.text);return new Blockly.FieldMultilineInput(b,void 0,a)};
 Blockly.FieldMultilineInput.prototype.initView=function(){this.createBorderRect_();this.textGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyEditableText"},this.fieldGroup_)};
 Blockly.FieldMultilineInput.prototype.getDisplayText_=function(){var a=this.value_;if(!a)return Blockly.Field.NBSP;var b=a.split("\n");a="";for(var c=0;c<b.length;c++){var d=b[c];d.length>this.maxDisplayLength&&(d=d.substring(0,this.maxDisplayLength-4)+"...");d=d.replace(/\s/g,Blockly.Field.NBSP);a+=d;c!==b.length-1&&(a+="\n")}this.sourceBlock_.RTL&&(a+="\u200f");return a};
 Blockly.FieldMultilineInput.prototype.render_=function(){for(var a;a=this.textGroup_.firstChild;)this.textGroup_.removeChild(a);a=this.getDisplayText_().split("\n");for(var b=Blockly.Field.Y_PADDING/2,c=0,d=0;d<a.length;d++)Blockly.utils.dom.createSvgElement("text",{"class":"blocklyText blocklyMultilineText",x:Blockly.Field.DEFAULT_TEXT_OFFSET,y:c+b,dy:Blockly.FieldMultilineInput.LINE_HEIGHT/2},this.textGroup_).appendChild(document.createTextNode(a[d])),c+=Blockly.FieldMultilineInput.LINE_HEIGHT;
@@ -1126,7 +1087,22 @@ Blockly.FieldVariable.prototype.getVariableTypes_=function(){var a=this.variable
 Blockly.FieldVariable.prototype.setTypes_=function(a,b){var c=b||"";if(null==a||void 0==a)var d=null;else if(Array.isArray(a)){d=a;for(var e=!1,f=0;f<d.length;f++)d[f]==c&&(e=!0);if(!e)throw Error("Invalid default type '"+c+"' in the definition of a FieldVariable");}else throw Error("'variableTypes' was not an array in the definition of a FieldVariable");this.defaultType_=c;this.variableTypes=d};Blockly.FieldVariable.prototype.refreshVariableName=function(){this.forceRerender()};
 Blockly.FieldVariable.dropdownCreate=function(){if(!this.variable_)throw Error("Tried to call dropdownCreate on a variable field with no variable selected.");var a=this.getText(),b=[];if(this.workspace_)for(var c=this.getVariableTypes_(),d=0;d<c.length;d++){var e=this.workspace_.getVariablesOfType(c[d]);b=b.concat(e)}b.sort(Blockly.VariableModel.compareByName);c=[];for(d=0;d<b.length;d++)c[d]=[b[d].name,b[d].getId()];c.push([Blockly.Msg.RENAME_VARIABLE,Blockly.RENAME_VARIABLE_ID]);Blockly.Msg.DELETE_VARIABLE&&
 c.push([Blockly.Msg.DELETE_VARIABLE.replace("%1",a),Blockly.DELETE_VARIABLE_ID]);return c};Blockly.FieldVariable.prototype.onItemSelected=function(a,b){var c=b.getValue();if(this.workspace_){if(c==Blockly.RENAME_VARIABLE_ID){Blockly.Variables.renameVariable(this.workspace_,this.variable_);return}if(c==Blockly.DELETE_VARIABLE_ID){this.workspace_.deleteVariableById(this.variable_.getId());return}}this.setValue(c)};Blockly.FieldVariable.prototype.referencesVariables=function(){return!0};
-Blockly.fieldRegistry.register("field_variable",Blockly.FieldVariable);Blockly.utils.svgPaths={};Blockly.utils.svgPaths.point=function(a,b){return" "+a+","+b+" "};Blockly.utils.svgPaths.curve=function(a,b){return" "+a+b.join("")};Blockly.utils.svgPaths.moveTo=function(a,b){return" M "+a+","+b+" "};Blockly.utils.svgPaths.moveBy=function(a,b){return" m "+a+","+b+" "};Blockly.utils.svgPaths.lineTo=function(a,b){return" l "+a+","+b+" "};Blockly.utils.svgPaths.line=function(a){return" l"+a.join("")};Blockly.utils.svgPaths.lineOnAxis=function(a,b){return" "+a+" "+b+" "};
+Blockly.fieldRegistry.register("field_variable",Blockly.FieldVariable);Blockly.Mutator=function(a){Blockly.Mutator.superClass_.constructor.call(this,null);this.quarkNames_=a};Blockly.utils.object.inherits(Blockly.Mutator,Blockly.Icon);Blockly.Mutator.prototype.workspaceWidth_=0;Blockly.Mutator.prototype.workspaceHeight_=0;
+Blockly.Mutator.prototype.drawIcon_=function(a){Blockly.utils.dom.createSvgElement("rect",{"class":"blocklyIconShape",rx:"4",ry:"4",height:"16",width:"16"},a);Blockly.utils.dom.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.utils.dom.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.utils.dom.createSvgElement("svg",{x:Blockly.Bubble.BORDER_WIDTH,y:Blockly.Bubble.BORDER_WIDTH},null);if(this.quarkNames_.length)for(var a=Blockly.utils.xml.createElement("xml"),b=0,c;c=this.quarkNames_[b];b++){var d=Blockly.utils.xml.createElement("block");d.setAttribute("type",c);a.appendChild(d)}else a=null;a={disable:!1,disabledPatternId:this.block_.workspace.options.disabledPatternId,languageTree:a,parentWorkspace:this.block_.workspace,
+pathToMedia:this.block_.workspace.options.pathToMedia,RTL:this.block_.RTL,toolboxPosition:this.block_.RTL?Blockly.TOOLBOX_AT_RIGHT:Blockly.TOOLBOX_AT_LEFT,horizontalLayout:!1,getMetrics:this.getFlyoutMetrics_.bind(this),setMetrics:null};this.workspace_=new Blockly.WorkspaceSvg(a);this.workspace_.isMutator=!0;this.workspace_.addChangeListener(Blockly.Events.disableOrphans);a=this.workspace_.addFlyout_("g");b=this.workspace_.createDom("blocklyMutatorBackground");b.insertBefore(a,this.workspace_.svgBlockCanvas_);
+this.svgDialog_.appendChild(b);return this.svgDialog_};Blockly.Mutator.prototype.updateEditable=function(){this.block_.isInFlyout||(this.block_.isEditable()?this.iconGroup_&&Blockly.utils.dom.removeClass(this.iconGroup_,"blocklyIconGroupReadonly"):(this.setVisible(!1),this.iconGroup_&&Blockly.utils.dom.addClass(this.iconGroup_,"blocklyIconGroupReadonly")));Blockly.Icon.prototype.updateEditable.call(this)};
+Blockly.Mutator.prototype.resizeBubble_=function(){var a=2*Blockly.Bubble.BORDER_WIDTH,b=this.workspace_.getCanvas().getBBox();var 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.iconXY_,null,null);this.bubble_.setSvgId(this.block_.id);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(!1);
+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_.getFlyout().getWidth()+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(a){if(a.type!=Blockly.Events.UI&&(a.type!=Blockly.Events.CHANGE||"disabled"!=a.element)){if(!this.workspace_.isDragging()){a=this.workspace_.getTopBlocks(!1);for(var 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.BlockChange(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();a!=b&&Blockly.keyboardAccessibilityMode&&Blockly.navigation.moveCursorOnBlockMutation(c);this.workspace_.isDragging()||this.resizeBubble_();Blockly.Events.setGroup(!1)}}};
+Blockly.Mutator.prototype.getFlyoutMetrics_=function(){return{viewHeight:this.workspaceHeight_,viewWidth:this.workspaceWidth_-this.workspace_.getFlyout().getWidth(),absoluteTop:0,absoluteLeft:this.workspace_.RTL?0:this.workspace_.getFlyout().getWidth()}};Blockly.Mutator.prototype.dispose=function(){this.block_.mutator=null;Blockly.Icon.prototype.dispose.call(this)};
+Blockly.Mutator.prototype.updateBlockStyle=function(){var a=this.workspace_;if(a&&a.getAllBlocks()){for(var b=a.getAllBlocks(),c=0;c<b.length;c++){var d=b[c];d.setStyle(d.getStyleName())}a=a.flyout_.workspace_.getAllBlocks();for(c=0;c<a.length;c++)d=a[c],d.setStyle(d.getStyleName())}};
+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)};Blockly.Mutator.findParentWs=function(a){var b=null;if(a&&a.options){var c=a.options.parentWorkspace;a.isFlyout?c&&c.options&&(b=c.options.parentWorkspace):c&&(b=c)}return b};Blockly.utils.svgPaths={};Blockly.utils.svgPaths.point=function(a,b){return" "+a+","+b+" "};Blockly.utils.svgPaths.curve=function(a,b){return" "+a+b.join("")};Blockly.utils.svgPaths.moveTo=function(a,b){return" M "+a+","+b+" "};Blockly.utils.svgPaths.moveBy=function(a,b){return" m "+a+","+b+" "};Blockly.utils.svgPaths.lineTo=function(a,b){return" l "+a+","+b+" "};Blockly.utils.svgPaths.line=function(a){return" l"+a.join("")};Blockly.utils.svgPaths.lineOnAxis=function(a,b){return" "+a+" "+b+" "};
 Blockly.utils.svgPaths.arc=function(a,b,c,d){return a+" "+c+" "+c+" "+b+d};Blockly.blockRendering.ConstantProvider=function(){this.NO_PADDING=0;this.SMALL_PADDING=3;this.MEDIUM_PADDING=5;this.MEDIUM_LARGE_PADDING=8;this.LARGE_PADDING=10;this.TALL_INPUT_FIELD_OFFSET_Y=this.MEDIUM_PADDING;this.DARK_PATH_OFFSET=1;this.TAB_HEIGHT=15;this.TAB_OFFSET_FROM_TOP=5;this.TAB_VERTICAL_OVERLAP=2.5;this.TAB_WIDTH=8;this.NOTCH_WIDTH=15;this.NOTCH_HEIGHT=4;this.MIN_BLOCK_WIDTH=12;this.EMPTY_BLOCK_SPACER_HEIGHT=16;this.CORNER_RADIUS=8;this.NOTCH_OFFSET_LEFT=15;this.STATEMENT_BOTTOM_SPACER=
 0;this.STATEMENT_INPUT_PADDING_LEFT=20;this.BETWEEN_STATEMENT_PADDING_Y=4;this.MAX_BOTTOM_WIDTH=66.5;this.START_HAT_HEIGHT=15;this.START_HAT_WIDTH=100;this.SPACER_DEFAULT_HEIGHT=15;this.MIN_BLOCK_HEIGHT=24;this.EMPTY_INLINE_INPUT_PADDING=14.5;this.EMPTY_INLINE_INPUT_HEIGHT=this.TAB_HEIGHT+11;this.EXTERNAL_VALUE_INPUT_PADDING=2;this.EMPTY_STATEMENT_INPUT_HEIGHT=this.MIN_BLOCK_HEIGHT;this.START_POINT=Blockly.utils.svgPaths.moveBy(0,0);this.JAGGED_TEETH_HEIGHT=12;this.JAGGED_TEETH_WIDTH=6};
 Blockly.blockRendering.ConstantProvider.prototype.init=function(){this.JAGGED_TEETH=this.makeJaggedTeeth();this.NOTCH=this.makeNotch();this.START_HAT=this.makeStartHat();this.PUZZLE_TAB=this.makePuzzleTab();this.INSIDE_CORNERS=this.makeInsideCorners();this.OUTSIDE_CORNERS=this.makeOutsideCorners()};
@@ -1214,8 +1190,8 @@ Blockly.blockRendering.Drawer.prototype.positionInlineInputConnection_=function(
 Blockly.blockRendering.Drawer.prototype.positionStatementInputConnection_=function(a){var b=a.getLastInput();if(b.connection){var c=a.xPos+a.statementEdge+b.notchOffset;c=this.info_.RTL?-1*c:c+this.constants_.DARK_PATH_OFFSET;b.connection.setOffsetInBlock(c,a.yPos+this.constants_.DARK_PATH_OFFSET)}};
 Blockly.blockRendering.Drawer.prototype.positionExternalValueConnection_=function(a){var b=a.getLastInput();if(b.connection){var c=a.xPos+a.width+this.constants_.DARK_PATH_OFFSET;this.info_.RTL&&(c*=-1);b.connection.setOffsetInBlock(c,a.yPos)}};Blockly.blockRendering.Drawer.prototype.positionPreviousConnection_=function(){var a=this.info_.topRow;if(a.connection){var b=a.xPos+a.notchOffset;a.connection.connectionModel.setOffsetInBlock(this.info_.RTL?-b:b,0)}};
 Blockly.blockRendering.Drawer.prototype.positionNextConnection_=function(){var a=this.info_.bottomRow;if(a.connection){a=a.connection;var b=a.xPos;a.connectionModel.setOffsetInBlock((this.info_.RTL?-b:b)+this.constants_.DARK_PATH_OFFSET/2,a.centerline-a.height/2+this.constants_.DARK_PATH_OFFSET)}};Blockly.blockRendering.Drawer.prototype.positionOutputConnection_=function(){if(this.info_.outputConnection){var a=this.info_.startX;this.block_.outputConnection.setOffsetInBlock(this.info_.RTL?-a:a,this.info_.outputConnection.connectionOffsetY)}};Blockly.blockRendering.Renderer=function(){this.constants_=null};Blockly.blockRendering.Renderer.prototype.init=function(){this.constants_=this.makeConstants_();this.constants_.init()};Blockly.blockRendering.Renderer.prototype.makeConstants_=function(){return new Blockly.blockRendering.ConstantProvider};Blockly.blockRendering.Renderer.prototype.makeRenderInfo_=function(a){return new Blockly.blockRendering.RenderInfo(this,a)};
-Blockly.blockRendering.Renderer.prototype.makeDrawer_=function(a,b){return new Blockly.blockRendering.Drawer(a,b)};Blockly.blockRendering.Renderer.prototype.makeDebugger_=function(){return new Blockly.blockRendering.Debug};Blockly.blockRendering.Renderer.prototype.makePathObject=function(a){return new Blockly.blockRendering.PathObject(a)};Blockly.blockRendering.Renderer.prototype.getConstants=function(){return this.constants_};
-Blockly.blockRendering.Renderer.prototype.render=function(a){a.renderingDebugger||(a.renderingDebugger=this.makeDebugger_());var b=this.makeRenderInfo_(a);b.measure();this.makeDrawer_(a,b).draw()};Blockly.geras={};
+Blockly.blockRendering.Renderer.prototype.makeDrawer_=function(a,b){return new Blockly.blockRendering.Drawer(a,b)};Blockly.blockRendering.Renderer.prototype.makeDebugger_=function(){return new Blockly.blockRendering.Debug};Blockly.blockRendering.Renderer.prototype.makeCursorDrawer=function(a,b){return new Blockly.CursorSvg(a,b)};Blockly.blockRendering.Renderer.prototype.makePathObject=function(a){return new Blockly.blockRendering.PathObject(a)};
+Blockly.blockRendering.Renderer.prototype.getConstants=function(){return this.constants_};Blockly.blockRendering.Renderer.prototype.render=function(a){a.renderingDebugger||(a.renderingDebugger=this.makeDebugger_());var b=this.makeRenderInfo_(a);b.measure();this.makeDrawer_(a,b).draw()};Blockly.geras={};
 Blockly.geras.Highlighter=function(a){this.info_=a;this.inlineSteps_=this.steps_="";this.RTL_=this.info_.RTL;a=a.getRenderer();this.constants_=a.getConstants();this.highlightConstants_=a.getHighlightConstants();this.highlightOffset_=this.highlightConstants_.OFFSET;this.outsideCornerPaths_=this.highlightConstants_.OUTSIDE_CORNER;this.insideCornerPaths_=this.highlightConstants_.INSIDE_CORNER;this.puzzleTabPaths_=this.highlightConstants_.PUZZLE_TAB;this.notchPaths_=this.highlightConstants_.NOTCH;this.startPaths_=
 this.highlightConstants_.START_HAT;this.jaggedTeethPaths_=this.highlightConstants_.JAGGED_TEETH};Blockly.geras.Highlighter.prototype.getPath=function(){return this.steps_+"\n"+this.inlineSteps_};
 Blockly.geras.Highlighter.prototype.drawTopCorner=function(a){this.steps_+=Blockly.utils.svgPaths.moveBy(a.xPos,this.info_.startY);for(var b=0,c;c=a.elements[b];b++)Blockly.blockRendering.Types.isLeftSquareCorner(c)?this.steps_+=this.highlightConstants_.START_POINT:Blockly.blockRendering.Types.isLeftRoundedCorner(c)?this.steps_+=this.outsideCornerPaths_.topLeft(this.RTL_):Blockly.blockRendering.Types.isPreviousConnection(c)?this.steps_+=this.notchPaths_.pathLeft:Blockly.blockRendering.Types.isHat(c)?
@@ -1301,4 +1277,29 @@ Blockly.zelos.Drawer.prototype.drawRightSideRow_=function(a){if(a.type&Blockly.b
 (0<b?Blockly.utils.svgPaths.lineOnAxis("V",a.yPos+a.height):"")):this.outlinePath_+=Blockly.utils.svgPaths.lineOnAxis("V",a.yPos+a.height)};Blockly.zelos.Drawer.prototype.drawRightDynamicConnection_=function(){this.outlinePath_+=this.info_.outputConnection.shape.pathRightDown(this.info_.outputConnection.height)};
 Blockly.zelos.Drawer.prototype.drawLeftDynamicConnection_=function(){this.positionOutputConnection_();this.outlinePath_+=this.info_.outputConnection.shape.pathUp(this.info_.outputConnection.height);this.outlinePath_+="z"};Blockly.zelos.Drawer.prototype.drawFlatTop_=function(){var a=this.info_.topRow;this.positionPreviousConnection_();this.outlinePath_+=Blockly.utils.svgPaths.moveBy(a.xPos,this.info_.startY);this.outlinePath_+=Blockly.utils.svgPaths.lineOnAxis("h",a.width)};
 Blockly.zelos.Drawer.prototype.drawFlatBottom_=function(){var a=this.info_.bottomRow;this.positionNextConnection_();this.outlinePath_+=Blockly.utils.svgPaths.lineOnAxis("V",a.baseline);this.outlinePath_+=Blockly.utils.svgPaths.lineOnAxis("h",-a.width)};Blockly.zelos.Drawer.prototype.drawInlineInput_=function(a){this.positionInlineInputConnection_(a)};Blockly.zelos.Renderer=function(){Blockly.zelos.Renderer.superClass_.constructor.call(this)};Blockly.utils.object.inherits(Blockly.zelos.Renderer,Blockly.blockRendering.Renderer);Blockly.zelos.Renderer.prototype.makeConstants_=function(){return new Blockly.zelos.ConstantProvider};Blockly.zelos.Renderer.prototype.makeRenderInfo_=function(a){return new Blockly.zelos.RenderInfo(this,a)};Blockly.zelos.Renderer.prototype.makeDrawer_=function(a,b){return new Blockly.zelos.Drawer(a,b)};
-Blockly.blockRendering.register("zelos",Blockly.zelos.Renderer);Blockly.requires={};
\ No newline at end of file
+Blockly.blockRendering.register("zelos",Blockly.zelos.Renderer);Blockly.Trashcan=function(a){this.workspace_=a;this.hasBlocks_=!1;this.contents_=[];0>=this.workspace_.options.maxTrashcanContents||(a={scrollbars:!0,disabledPatternId:this.workspace_.options.disabledPatternId,parentWorkspace:this.workspace_,RTL:this.workspace_.RTL,oneBasedIndex:this.workspace_.options.oneBasedIndex,renderer:this.workspace_.options.renderer},this.workspace_.horizontalLayout?(a.toolboxPosition=this.workspace_.toolboxPosition==Blockly.TOOLBOX_AT_TOP?Blockly.TOOLBOX_AT_BOTTOM:Blockly.TOOLBOX_AT_TOP,
+this.flyout_=new Blockly.HorizontalFlyout(a)):(a.toolboxPosition=this.workspace_.toolboxPosition==Blockly.TOOLBOX_AT_RIGHT?Blockly.TOOLBOX_AT_LEFT:Blockly.TOOLBOX_AT_RIGHT,this.flyout_=new Blockly.VerticalFlyout(a)),this.workspace_.addChangeListener(this.onDelete_()))};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.SPRITE_LEFT_=0;Blockly.Trashcan.prototype.SPRITE_TOP_=32;Blockly.Trashcan.prototype.HAS_BLOCKS_LID_ANGLE=.1;Blockly.Trashcan.prototype.isOpen=!1;Blockly.Trashcan.prototype.minOpenness_=0;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.utils.dom.createSvgElement("g",{"class":"blocklyTrash"},null);var a=String(Math.random()).substring(2);var b=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyTrashBodyClipPath"+a},this.svgGroup_);Blockly.utils.dom.createSvgElement("rect",{width:this.WIDTH_,height:this.BODY_HEIGHT_,y:this.LID_HEIGHT_},b);var c=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,x:-this.SPRITE_LEFT_,height:Blockly.SPRITE.height,
+y:-this.SPRITE_TOP_,"clip-path":"url(#blocklyTrashBodyClipPath"+a+")"},this.svgGroup_);c.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",this.workspace_.options.pathToMedia+Blockly.SPRITE.url);b=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyTrashLidClipPath"+a},this.svgGroup_);Blockly.utils.dom.createSvgElement("rect",{width:this.WIDTH_,height:this.LID_HEIGHT_},b);this.svgLid_=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,x:-this.SPRITE_LEFT_,height:Blockly.SPRITE.height,
+y:-this.SPRITE_TOP_,"clip-path":"url(#blocklyTrashLidClipPath"+a+")"},this.svgGroup_);this.svgLid_.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",this.workspace_.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEventWithChecks_(this.svgGroup_,"mouseup",this,this.click);Blockly.bindEvent_(c,"mouseover",this,this.mouseOver_);Blockly.bindEvent_(c,"mouseout",this,this.mouseOut_);this.animateLid_();return this.svgGroup_};
+Blockly.Trashcan.prototype.init=function(a){0<this.workspace_.options.maxTrashcanContents&&(Blockly.utils.dom.insertAfter(this.flyout_.createDom("svg"),this.workspace_.getParentSvg()),this.flyout_.init(this.workspace_),this.flyout_.isBlockCreatable_=function(){return!0});this.verticalSpacing_=this.MARGIN_BOTTOM_+a;this.setOpen_(!1);return this.verticalSpacing_+this.BODY_HEIGHT_+this.LID_HEIGHT_};
+Blockly.Trashcan.prototype.dispose=function(){this.svgGroup_&&(Blockly.utils.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.workspace_=this.svgLid_=null;clearTimeout(this.lidTask_)};
+Blockly.Trashcan.prototype.position=function(){if(this.verticalSpacing_){var a=this.workspace_.getMetrics();a&&(this.left_=a.toolboxPosition==Blockly.TOOLBOX_AT_LEFT||this.workspace_.horizontalLayout&&!this.workspace_.RTL?a.viewWidth+a.absoluteLeft-this.WIDTH_-this.MARGIN_SIDE_-Blockly.Scrollbar.scrollbarThickness:this.MARGIN_SIDE_+Blockly.Scrollbar.scrollbarThickness,this.top_=a.toolboxPosition==Blockly.TOOLBOX_AT_BOTTOM?this.verticalSpacing_:a.viewHeight+a.absoluteTop-(this.BODY_HEIGHT_+this.LID_HEIGHT_)-
+this.verticalSpacing_,this.svgGroup_.setAttribute("transform","translate("+this.left_+","+this.top_+")"))}};Blockly.Trashcan.prototype.getClientRect=function(){if(!this.svgGroup_)return null;var a=this.svgGroup_.getBoundingClientRect(),b=a.top+this.SPRITE_TOP_-this.MARGIN_HOTSPOT_;a=a.left+this.SPRITE_LEFT_-this.MARGIN_HOTSPOT_;return new Blockly.utils.Rect(b,b+this.LID_HEIGHT_+this.BODY_HEIGHT_+2*this.MARGIN_HOTSPOT_,a,a+this.WIDTH_+2*this.MARGIN_HOTSPOT_)};
+Blockly.Trashcan.prototype.setOpen_=function(a){this.isOpen!=a&&(clearTimeout(this.lidTask_),this.isOpen=a,this.animateLid_())};Blockly.Trashcan.prototype.animateLid_=function(){this.lidOpen_+=this.isOpen?.2:-.2;this.lidOpen_=Math.min(Math.max(this.lidOpen_,this.minOpenness_),1);this.setLidAngle_(45*this.lidOpen_);this.svgGroup_.style.opacity=.4+.4*this.lidOpen_;this.lidOpen_>this.minOpenness_&&1>this.lidOpen_&&(this.lidTask_=setTimeout(this.animateLid_.bind(this),20))};
+Blockly.Trashcan.prototype.setLidAngle_=function(a){var b=this.workspace_.toolboxPosition==Blockly.TOOLBOX_AT_RIGHT||this.workspace_.horizontalLayout&&this.workspace_.RTL;this.svgLid_.setAttribute("transform","rotate("+(b?-a:a)+","+(b?4:this.WIDTH_-4)+","+(this.LID_HEIGHT_-2)+")")};Blockly.Trashcan.prototype.close=function(){this.setOpen_(!1)};Blockly.Trashcan.prototype.click=function(){if(this.hasBlocks_){for(var a=[],b=0,c;c=this.contents_[b];b++)a[b]=Blockly.Xml.textToDom(c);this.flyout_.show(a)}};
+Blockly.Trashcan.prototype.mouseOver_=function(){this.hasBlocks_&&this.setOpen_(!0)};Blockly.Trashcan.prototype.mouseOut_=function(){this.setOpen_(!1)};
+Blockly.Trashcan.prototype.onDelete_=function(){var a=this;return function(b){0>=a.workspace_.options.maxTrashcanContents||b.type!=Blockly.Events.BLOCK_DELETE||"shadow"==b.oldXml.tagName.toLowerCase()||(b=a.cleanBlockXML_(b.oldXml),-1==a.contents_.indexOf(b)&&(a.contents_.unshift(b),a.contents_.length>a.workspace_.options.maxTrashcanContents&&a.contents_.splice(a.workspace_.options.maxTrashcanContents,a.contents_.length-a.workspace_.options.maxTrashcanContents),a.hasBlocks_=!0,a.minOpenness_=a.HAS_BLOCKS_LID_ANGLE,
+a.setLidAngle_(45*a.minOpenness_)))}};Blockly.Trashcan.prototype.cleanBlockXML_=function(a){for(var b=a=a.cloneNode(!0);b;){b.removeAttribute&&(b.removeAttribute("x"),b.removeAttribute("y"),b.removeAttribute("id"));var c=b.firstChild||b.nextSibling;if(!c)for(c=b.parentNode;c;){if(c.nextSibling){c=c.nextSibling;break}c=c.parentNode}b=c}return Blockly.Xml.domToText(a)};
+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(){this.svgGroup_=Blockly.utils.dom.createSvgElement("g",{},null);var a=String(Math.random()).substring(2);this.createZoomOutSvg_(a);this.createZoomInSvg_(a);this.workspace_.isMovable()&&this.createZoomResetSvg_(a);return this.svgGroup_};Blockly.ZoomControls.prototype.init=function(a){this.verticalSpacing_=this.MARGIN_BOTTOM_+a;return this.verticalSpacing_+this.HEIGHT_};
+Blockly.ZoomControls.prototype.dispose=function(){this.svgGroup_&&(Blockly.utils.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.workspace_=null};
+Blockly.ZoomControls.prototype.position=function(){if(this.verticalSpacing_){var a=this.workspace_.getMetrics();a&&(this.left_=a.toolboxPosition==Blockly.TOOLBOX_AT_LEFT||this.workspace_.horizontalLayout&&!this.workspace_.RTL?a.viewWidth+a.absoluteLeft-this.WIDTH_-this.MARGIN_SIDE_-Blockly.Scrollbar.scrollbarThickness:this.MARGIN_SIDE_+Blockly.Scrollbar.scrollbarThickness,a.toolboxPosition==Blockly.TOOLBOX_AT_BOTTOM?(this.top_=this.verticalSpacing_,this.zoomInGroup_.setAttribute("transform","translate(0, 34)"),
+this.zoomResetGroup_&&this.zoomResetGroup_.setAttribute("transform","translate(0, 77)")):(this.top_=a.viewHeight+a.absoluteTop-this.HEIGHT_-this.verticalSpacing_,this.zoomInGroup_.setAttribute("transform","translate(0, 43)"),this.zoomOutGroup_.setAttribute("transform","translate(0, 77)")),this.svgGroup_.setAttribute("transform","translate("+this.left_+","+this.top_+")"))}};
+Blockly.ZoomControls.prototype.createZoomOutSvg_=function(a){var b=this.workspace_;this.zoomOutGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyZoom"},this.svgGroup_);var c=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyZoomoutClipPath"+a},this.zoomOutGroup_);Blockly.utils.dom.createSvgElement("rect",{width:32,height:32},c);a=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,x:-64,y:-92,"clip-path":"url(#blocklyZoomoutClipPath"+
+a+")"},this.zoomOutGroup_);a.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",b.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEventWithChecks_(a,"mousedown",null,function(a){b.markFocused();b.zoomCenter(-1);Blockly.Touch.clearTouchIdentifier();a.stopPropagation();a.preventDefault()})};
+Blockly.ZoomControls.prototype.createZoomInSvg_=function(a){var b=this.workspace_;this.zoomInGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyZoom"},this.svgGroup_);var c=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyZoominClipPath"+a},this.zoomInGroup_);Blockly.utils.dom.createSvgElement("rect",{width:32,height:32},c);a=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,x:-32,y:-92,"clip-path":"url(#blocklyZoominClipPath"+
+a+")"},this.zoomInGroup_);a.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",b.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEventWithChecks_(a,"mousedown",null,function(a){b.markFocused();b.zoomCenter(1);Blockly.Touch.clearTouchIdentifier();a.stopPropagation();a.preventDefault()})};
+Blockly.ZoomControls.prototype.createZoomResetSvg_=function(a){var b=this.workspace_;this.zoomResetGroup_=Blockly.utils.dom.createSvgElement("g",{"class":"blocklyZoom"},this.svgGroup_);var c=Blockly.utils.dom.createSvgElement("clipPath",{id:"blocklyZoomresetClipPath"+a},this.zoomResetGroup_);Blockly.utils.dom.createSvgElement("rect",{width:32,height:32},c);a=Blockly.utils.dom.createSvgElement("image",{width:Blockly.SPRITE.width,height:Blockly.SPRITE.height,y:-92,"clip-path":"url(#blocklyZoomresetClipPath"+
+a+")"},this.zoomResetGroup_);a.setAttributeNS(Blockly.utils.dom.XLINK_NS,"xlink:href",b.options.pathToMedia+Blockly.SPRITE.url);Blockly.bindEventWithChecks_(a,"mousedown",null,function(a){b.markFocused();b.setScale(b.options.zoomOptions.startScale);b.beginCanvasTransition();b.scrollCenter();setTimeout(b.endCanvasTransition.bind(b),500);Blockly.Touch.clearTouchIdentifier();a.stopPropagation();a.preventDefault()})};Blockly.requires={};
\ No newline at end of file
diff --git a/blockly_uncompressed.js b/blockly_uncompressed.js
index e4830c88b..4e575d12e 100644
--- a/blockly_uncompressed.js
+++ b/blockly_uncompressed.js
@@ -27,13 +27,13 @@ this.BLOCKLY_BOOT = function(root) {
     dir = this.BLOCKLY_DIR.match(/[^\/]+$/)[0];
   }
   // Execute after Closure has loaded.
-goog.addDependency("../../../" + dir + "/core/block.js", ['Blockly.Block'], ['Blockly.Blocks', 'Blockly.Comment', 'Blockly.Connection', 'Blockly.Events', 'Blockly.Events.BlockChange', 'Blockly.Events.BlockCreate', 'Blockly.Events.BlockDelete', 'Blockly.Events.BlockMove', 'Blockly.Extensions', 'Blockly.Input', 'Blockly.Mutator', 'Blockly.utils', 'Blockly.utils.Coordinate', 'Blockly.utils.object', 'Blockly.fieldRegistry', 'Blockly.utils.string', 'Blockly.Warning', 'Blockly.Workspace']);
+goog.addDependency("../../../" + dir + "/core/block.js", ['Blockly.Block'], ['Blockly.Blocks', 'Blockly.Comment', 'Blockly.Connection', 'Blockly.Events', 'Blockly.Events.BlockChange', 'Blockly.Events.BlockCreate', 'Blockly.Events.BlockDelete', 'Blockly.Events.BlockMove', 'Blockly.Extensions', 'Blockly.Input', 'Blockly.utils', 'Blockly.utils.Coordinate', 'Blockly.utils.object', 'Blockly.fieldRegistry', 'Blockly.utils.string', 'Blockly.Warning', 'Blockly.Workspace']);
 goog.addDependency("../../../" + dir + "/core/block_animations.js", ['Blockly.blockAnimations'], ['Blockly.utils.dom']);
 goog.addDependency("../../../" + dir + "/core/block_drag_surface.js", ['Blockly.BlockDragSurfaceSvg'], ['Blockly.utils', 'Blockly.utils.Coordinate', 'Blockly.utils.dom']);
 goog.addDependency("../../../" + dir + "/core/block_dragger.js", ['Blockly.BlockDragger'], ['Blockly.blockAnimations', 'Blockly.Events', 'Blockly.Events.BlockMove', 'Blockly.InsertionMarkerManager', 'Blockly.utils.Coordinate', 'Blockly.utils.dom']);
 goog.addDependency("../../../" + dir + "/core/block_events.js", ['Blockly.Events.BlockBase', 'Blockly.Events.BlockChange', 'Blockly.Events.BlockCreate', 'Blockly.Events.BlockDelete', 'Blockly.Events.BlockMove', 'Blockly.Events.Change', 'Blockly.Events.Create', 'Blockly.Events.Delete', 'Blockly.Events.Move'], ['Blockly.Events', 'Blockly.Events.Abstract', 'Blockly.utils.Coordinate', 'Blockly.utils.object', 'Blockly.utils.xml']);
 goog.addDependency("../../../" + dir + "/core/block_render_svg.js", ['Blockly.BlockSvg.render'], ['Blockly.blockRendering', 'Blockly.BlockSvg', 'Blockly.utils.dom']);
-goog.addDependency("../../../" + dir + "/core/block_svg.js", ['Blockly.BlockSvg'], ['Blockly.Block', 'Blockly.blockAnimations', 'Blockly.blockRendering.IPathObject', 'Blockly.ContextMenu', 'Blockly.Events', 'Blockly.Events.Ui', 'Blockly.Events.BlockMove', 'Blockly.Grid', 'Blockly.Msg', 'Blockly.RenderedConnection', 'Blockly.Tooltip', 'Blockly.Touch', 'Blockly.utils', 'Blockly.utils.Coordinate', 'Blockly.utils.dom', 'Blockly.utils.object', 'Blockly.utils.Rect']);
+goog.addDependency("../../../" + dir + "/core/block_svg.js", ['Blockly.BlockSvg'], ['Blockly.Block', 'Blockly.blockAnimations', 'Blockly.blockRendering.IPathObject', 'Blockly.ContextMenu', 'Blockly.Events', 'Blockly.Events.Ui', 'Blockly.Events.BlockMove', 'Blockly.Msg', 'Blockly.RenderedConnection', 'Blockly.Tooltip', 'Blockly.Touch', 'Blockly.utils', 'Blockly.utils.Coordinate', 'Blockly.utils.dom', 'Blockly.utils.object', 'Blockly.utils.Rect']);
 goog.addDependency("../../../" + dir + "/core/blockly.js", ['Blockly'], ['Blockly.BlockSvg.render', 'Blockly.Events', 'Blockly.Events.Ui', 'Blockly.Generator', 'Blockly.navigation', 'Blockly.Procedures', 'Blockly.Toolbox', 'Blockly.Tooltip', 'Blockly.Touch', 'Blockly.WidgetDiv', 'Blockly.WorkspaceSvg', 'Blockly.constants', 'Blockly.inject', 'Blockly.utils', 'Blockly.Xml']);
 goog.addDependency("../../../" + dir + "/core/blocks.js", ['Blockly.Blocks'], []);
 goog.addDependency("../../../" + dir + "/core/bubble.js", ['Blockly.Bubble'], ['Blockly.Touch', 'Blockly.utils', 'Blockly.utils.Coordinate', 'Blockly.utils.dom', 'Blockly.utils.math', 'Blockly.utils.userAgent', 'Blockly.Workspace']);
@@ -53,7 +53,7 @@ goog.addDependency("../../../" + dir + "/core/css.js", ['Blockly.Css'], []);
 goog.addDependency("../../../" + dir + "/core/dropdowndiv.js", ['Blockly.DropDownDiv'], ['Blockly.utils.math', 'Blockly.utils.style']);
 goog.addDependency("../../../" + dir + "/core/events.js", ['Blockly.Events'], ['Blockly.utils']);
 goog.addDependency("../../../" + dir + "/core/events_abstract.js", ['Blockly.Events.Abstract'], ['Blockly.Events']);
-goog.addDependency("../../../" + dir + "/core/extensions.js", ['Blockly.Extensions'], ['Blockly.Mutator', 'Blockly.utils']);
+goog.addDependency("../../../" + dir + "/core/extensions.js", ['Blockly.Extensions'], ['Blockly.utils']);
 goog.addDependency("../../../" + dir + "/core/field.js", ['Blockly.Field'], ['Blockly.Events', 'Blockly.Events.BlockChange', 'Blockly.Gesture', 'Blockly.utils', 'Blockly.utils.dom', 'Blockly.utils.Size', 'Blockly.utils.userAgent', 'Blockly.utils.style']);
 goog.addDependency("../../../" + dir + "/core/field_angle.js", ['Blockly.FieldAngle'], ['Blockly.DropDownDiv', 'Blockly.fieldRegistry', 'Blockly.FieldTextInput', 'Blockly.utils.dom', 'Blockly.utils.math', 'Blockly.utils.object', 'Blockly.utils.userAgent']);
 goog.addDependency("../../../" + dir + "/core/field_checkbox.js", ['Blockly.FieldCheckbox'], ['Blockly.Events', 'Blockly.Events.BlockChange', 'Blockly.Field', 'Blockly.fieldRegistry', 'Blockly.utils.dom', 'Blockly.utils.object', 'Blockly.utils.Size']);
@@ -100,7 +100,7 @@ goog.addDependency("../../../" + dir + "/core/renderers/common/debugger.js", ['B
 goog.addDependency("../../../" + dir + "/core/renderers/common/drawer.js", ['Blockly.blockRendering.Drawer'], ['Blockly.blockRendering.BottomRow', 'Blockly.blockRendering.Debug', 'Blockly.blockRendering.InputRow', 'Blockly.blockRendering.Measurable', 'Blockly.blockRendering.RenderInfo', 'Blockly.blockRendering.Row', 'Blockly.blockRendering.SpacerRow', 'Blockly.blockRendering.TopRow', 'Blockly.blockRendering.Types', 'Blockly.utils.svgPaths']);
 goog.addDependency("../../../" + dir + "/core/renderers/common/info.js", ['Blockly.blockRendering.RenderInfo'], ['Blockly.blockRendering.BottomRow', 'Blockly.blockRendering.ExternalValueInput', 'Blockly.blockRendering.InlineInput', 'Blockly.blockRendering.InputRow', 'Blockly.blockRendering.Measurable', 'Blockly.blockRendering.NextConnection', 'Blockly.blockRendering.OutputConnection', 'Blockly.blockRendering.PreviousConnection', 'Blockly.blockRendering.Row', 'Blockly.blockRendering.SpacerRow', 'Blockly.blockRendering.StatementInput', 'Blockly.blockRendering.TopRow', 'Blockly.blockRendering.Types', 'Blockly.RenderedConnection']);
 goog.addDependency("../../../" + dir + "/core/renderers/common/path_object.js", ['Blockly.blockRendering.IPathObject', 'Blockly.blockRendering.PathObject'], ['Blockly.utils.dom']);
-goog.addDependency("../../../" + dir + "/core/renderers/common/renderer.js", ['Blockly.blockRendering.Renderer'], ['Blockly.blockRendering.ConstantProvider', 'Blockly.blockRendering.Debug', 'Blockly.blockRendering.Drawer', 'Blockly.blockRendering.IPathObject', 'Blockly.blockRendering.PathObject', 'Blockly.blockRendering.RenderInfo']);
+goog.addDependency("../../../" + dir + "/core/renderers/common/renderer.js", ['Blockly.blockRendering.Renderer'], ['Blockly.blockRendering.ConstantProvider', 'Blockly.blockRendering.Debug', 'Blockly.blockRendering.Drawer', 'Blockly.blockRendering.IPathObject', 'Blockly.blockRendering.PathObject', 'Blockly.blockRendering.RenderInfo', 'Blockly.CursorSvg']);
 goog.addDependency("../../../" + dir + "/core/renderers/geras/drawer.js", ['Blockly.geras.Drawer'], ['Blockly.blockRendering.ConstantProvider', 'Blockly.blockRendering.Drawer', 'Blockly.geras.Highlighter', 'Blockly.geras.PathObject', 'Blockly.geras.RenderInfo', 'Blockly.utils.object', 'Blockly.utils.svgPaths']);
 goog.addDependency("../../../" + dir + "/core/renderers/geras/highlight_constants.js", ['Blockly.geras.HighlightConstantProvider'], ['Blockly.blockRendering.ConstantProvider', 'Blockly.utils.svgPaths']);
 goog.addDependency("../../../" + dir + "/core/renderers/geras/highlighter.js", ['Blockly.geras.Highlighter'], ['Blockly.blockRendering.BottomRow', 'Blockly.blockRendering.InputRow', 'Blockly.blockRendering.Measurable', 'Blockly.blockRendering.RenderInfo', 'Blockly.blockRendering.Row', 'Blockly.blockRendering.SpacerRow', 'Blockly.blockRendering.TopRow', 'Blockly.blockRendering.Types', 'Blockly.utils.svgPaths']);
@@ -120,7 +120,7 @@ goog.addDependency("../../../" + dir + "/core/renderers/zelos/drawer.js", ['Bloc
 goog.addDependency("../../../" + dir + "/core/renderers/zelos/info.js", ['Blockly.zelos', 'Blockly.zelos.RenderInfo'], ['Blockly.blockRendering.BottomRow', 'Blockly.blockRendering.ExternalValueInput', 'Blockly.blockRendering.InlineInput', 'Blockly.blockRendering.InputRow', 'Blockly.blockRendering.Measurable', 'Blockly.blockRendering.NextConnection', 'Blockly.blockRendering.OutputConnection', 'Blockly.blockRendering.PreviousConnection', 'Blockly.blockRendering.RenderInfo', 'Blockly.blockRendering.Row', 'Blockly.blockRendering.SpacerRow', 'Blockly.blockRendering.StatementInput', 'Blockly.blockRendering.TopRow', 'Blockly.blockRendering.Types', 'Blockly.RenderedConnection', 'Blockly.utils.object', 'Blockly.zelos.AfterStatementSpacerRow', 'Blockly.zelos.BeforeStatementSpacerRow', 'Blockly.zelos.BottomRow', 'Blockly.zelos.TopRow']);
 goog.addDependency("../../../" + dir + "/core/renderers/zelos/measurables/rows.js", ['Blockly.zelos.BottomRow', 'Blockly.zelos.TopRow', 'Blockly.zelos.AfterStatementSpacerRow', 'Blockly.zelos.BeforeStatementSpacerRow'], ['Blockly.blockRendering.BottomRow', 'Blockly.blockRendering.TopRow', 'Blockly.blockRendering.SpacerRow', 'Blockly.utils.object']);
 goog.addDependency("../../../" + dir + "/core/renderers/zelos/renderer.js", ['Blockly.zelos.Renderer'], ['Blockly.blockRendering', 'Blockly.blockRendering.Renderer', 'Blockly.utils.object', 'Blockly.zelos.ConstantProvider', 'Blockly.zelos.Drawer', 'Blockly.zelos.RenderInfo']);
-goog.addDependency("../../../" + dir + "/core/requires.js", ['Blockly.requires'], ['Blockly', 'Blockly.FieldAngle', 'Blockly.FieldCheckbox', 'Blockly.FieldColour', 'Blockly.FieldDropdown', 'Blockly.FieldLabelSerializable', 'Blockly.FieldImage', 'Blockly.FieldTextInput', 'Blockly.FieldMultilineInput', 'Blockly.FieldNumber', 'Blockly.FieldVariable', 'Blockly.geras.Renderer', 'Blockly.thrasos.Renderer', 'Blockly.zelos.Renderer']);
+goog.addDependency("../../../" + dir + "/core/requires.js", ['Blockly.requires'], ['Blockly', 'Blockly.Mutator', 'Blockly.Trashcan', 'Blockly.ZoomControls', 'Blockly.FieldAngle', 'Blockly.FieldCheckbox', 'Blockly.FieldColour', 'Blockly.FieldDropdown', 'Blockly.FieldLabelSerializable', 'Blockly.FieldImage', 'Blockly.FieldTextInput', 'Blockly.FieldMultilineInput', 'Blockly.FieldNumber', 'Blockly.FieldVariable', 'Blockly.geras.Renderer', 'Blockly.thrasos.Renderer', 'Blockly.zelos.Renderer']);
 goog.addDependency("../../../" + dir + "/core/scrollbar.js", ['Blockly.Scrollbar', 'Blockly.ScrollbarPair'], ['Blockly.Touch', 'Blockly.utils', 'Blockly.utils.Coordinate', 'Blockly.utils.dom']);
 goog.addDependency("../../../" + dir + "/core/theme.js", ['Blockly.Theme'], []);
 goog.addDependency("../../../" + dir + "/core/theme/classic.js", ['Blockly.Themes.Classic'], ['Blockly.Theme']);
@@ -165,7 +165,7 @@ goog.addDependency("../../../" + dir + "/core/workspace_comment_svg.js", ['Block
 goog.addDependency("../../../" + dir + "/core/workspace_drag_surface_svg.js", ['Blockly.WorkspaceDragSurfaceSvg'], ['Blockly.utils', 'Blockly.utils.dom']);
 goog.addDependency("../../../" + dir + "/core/workspace_dragger.js", ['Blockly.WorkspaceDragger'], ['Blockly.utils.Coordinate']);
 goog.addDependency("../../../" + dir + "/core/workspace_events.js", ['Blockly.Events.FinishedLoading'], ['Blockly.Events', 'Blockly.Events.Abstract', 'Blockly.utils.object']);
-goog.addDependency("../../../" + dir + "/core/workspace_svg.js", ['Blockly.WorkspaceSvg'], ['Blockly.blockRendering', 'Blockly.ConnectionDB', 'Blockly.constants', 'Blockly.CursorSvg', 'Blockly.Events', 'Blockly.Events.BlockCreate', 'Blockly.Gesture', 'Blockly.Grid', 'Blockly.Msg', 'Blockly.Options', 'Blockly.ScrollbarPair', 'Blockly.Touch', 'Blockly.TouchGesture', 'Blockly.Trashcan', 'Blockly.utils', 'Blockly.utils.Coordinate', 'Blockly.utils.dom', 'Blockly.utils.object', 'Blockly.utils.Rect', 'Blockly.VariablesDynamic', 'Blockly.Workspace', 'Blockly.WorkspaceAudio', 'Blockly.WorkspaceComment', 'Blockly.WorkspaceCommentSvg', 'Blockly.WorkspaceCommentSvg.render', 'Blockly.WorkspaceDragSurfaceSvg', 'Blockly.Xml', 'Blockly.ZoomControls']);
+goog.addDependency("../../../" + dir + "/core/workspace_svg.js", ['Blockly.WorkspaceSvg'], ['Blockly.blockRendering', 'Blockly.ConnectionDB', 'Blockly.constants', 'Blockly.CursorSvg', 'Blockly.Events', 'Blockly.Events.BlockCreate', 'Blockly.Gesture', 'Blockly.Grid', 'Blockly.Msg', 'Blockly.Options', 'Blockly.ScrollbarPair', 'Blockly.Touch', 'Blockly.TouchGesture', 'Blockly.utils', 'Blockly.utils.Coordinate', 'Blockly.utils.dom', 'Blockly.utils.object', 'Blockly.utils.Rect', 'Blockly.VariablesDynamic', 'Blockly.Workspace', 'Blockly.WorkspaceAudio', 'Blockly.WorkspaceComment', 'Blockly.WorkspaceCommentSvg', 'Blockly.WorkspaceCommentSvg.render', 'Blockly.WorkspaceDragSurfaceSvg', 'Blockly.Xml']);
 goog.addDependency("../../../" + dir + "/core/ws_comment_events.js", ['Blockly.Events.CommentBase', 'Blockly.Events.CommentChange', 'Blockly.Events.CommentCreate', 'Blockly.Events.CommentDelete', 'Blockly.Events.CommentMove'], ['Blockly.Events', 'Blockly.Events.Abstract', 'Blockly.utils.Coordinate', 'Blockly.utils.object', 'Blockly.utils.xml', 'Blockly.Xml']);
 goog.addDependency("../../../" + dir + "/core/xml.js", ['Blockly.Xml'], ['Blockly.Events', 'Blockly.Events.BlockCreate', 'Blockly.Events.FinishedLoading', 'Blockly.Events.VarCreate', 'Blockly.utils', 'Blockly.utils.dom', 'Blockly.utils.global', 'Blockly.utils.xml']);
 goog.addDependency("../../../" + dir + "/core/zoom_controls.js", ['Blockly.ZoomControls'], ['Blockly.Touch', 'Blockly.utils.dom']);
diff --git a/core/gesture.js b/core/gesture.js
index 42930bb05..9b727d26b 100644
--- a/core/gesture.js
+++ b/core/gesture.js
@@ -500,7 +500,7 @@ Blockly.Gesture.prototype.doStart = function(e) {
   if (this.targetBlock_) {
     if (!this.targetBlock_.isInFlyout && e.shiftKey) {
       Blockly.navigation.enableKeyboardAccessibility();
-      this.creatorWorkspace_.getCursor().setLocation(
+      this.creatorWorkspace_.getCursor().setCurNode(
           Blockly.navigation.getTopNode(this.targetBlock_));
     } else {
       this.targetBlock_.select();
@@ -769,7 +769,7 @@ Blockly.Gesture.prototype.doWorkspaceClick_ = function(e) {
     var screenCoord = new Blockly.utils.Coordinate(e.clientX, e.clientY);
     var wsCoord = Blockly.utils.screenToWsCoordinates(ws, screenCoord);
     var wsNode = Blockly.ASTNode.createWorkspaceNode(ws, wsCoord);
-    ws.getCursor().setLocation(wsNode);
+    ws.getCursor().setCurNode(wsNode);
   } else if (Blockly.selected) {
     Blockly.selected.unselect();
   }
diff --git a/core/keyboard_nav/cursor.js b/core/keyboard_nav/cursor.js
index 5b1e1d3ce..f37b8563b 100644
--- a/core/keyboard_nav/cursor.js
+++ b/core/keyboard_nav/cursor.js
@@ -80,7 +80,7 @@ Blockly.Cursor.prototype.getCurNode = function() {
  * output or previous connection on a stack.
  * @param {Blockly.ASTNode} newNode The new location of the cursor.
  */
-Blockly.Cursor.prototype.setLocation = function(newNode) {
+Blockly.Cursor.prototype.setCurNode = function(newNode) {
   this.curNode_ = newNode;
   if (this.drawer_) {
     this.drawer_.draw(this.getCurNode());
@@ -115,7 +115,7 @@ Blockly.Cursor.prototype.next = function() {
   }
 
   if (newNode) {
-    this.setLocation(newNode);
+    this.setCurNode(newNode);
   }
   return newNode;
 };
@@ -143,7 +143,7 @@ Blockly.Cursor.prototype.in = function() {
   }
 
   if (newNode) {
-    this.setLocation(newNode);
+    this.setCurNode(newNode);
   }
   return newNode;
 };
@@ -167,7 +167,7 @@ Blockly.Cursor.prototype.prev = function() {
   }
 
   if (newNode) {
-    this.setLocation(newNode);
+    this.setCurNode(newNode);
   }
   return newNode;
 };
@@ -189,7 +189,7 @@ Blockly.Cursor.prototype.out = function() {
   }
 
   if (newNode) {
-    this.setLocation(newNode);
+    this.setCurNode(newNode);
   }
   return newNode;
 };
diff --git a/core/keyboard_nav/flyout_cursor.js b/core/keyboard_nav/flyout_cursor.js
index 428dce97c..c788a98bb 100644
--- a/core/keyboard_nav/flyout_cursor.js
+++ b/core/keyboard_nav/flyout_cursor.js
@@ -56,7 +56,7 @@ Blockly.FlyoutCursor.prototype.next = function() {
   var newNode = curNode.next();
 
   if (newNode) {
-    this.setLocation(newNode);
+    this.setCurNode(newNode);
   }
   return newNode;
 };
@@ -84,7 +84,7 @@ Blockly.FlyoutCursor.prototype.prev = function() {
   var newNode = curNode.prev();
 
   if (newNode) {
-    this.setLocation(newNode);
+    this.setCurNode(newNode);
   }
   return newNode;
 };
diff --git a/core/keyboard_nav/navigation.js b/core/keyboard_nav/navigation.js
index 5c724b3ab..1079d17f1 100644
--- a/core/keyboard_nav/navigation.js
+++ b/core/keyboard_nav/navigation.js
@@ -102,7 +102,7 @@ Blockly.navigation.actionNames = {
  * @private
  */
 Blockly.navigation.markAtCursor_ = function() {
-  Blockly.getMainWorkspace().getMarker().setLocation(
+  Blockly.getMainWorkspace().getMarker().setCurNode(
       Blockly.getMainWorkspace().getCursor().getCurNode());
 };
 
@@ -111,7 +111,7 @@ Blockly.navigation.markAtCursor_ = function() {
  * @private
  */
 Blockly.navigation.removeMark_ = function() {
-  Blockly.getMainWorkspace().getMarker().setLocation(null);
+  Blockly.getMainWorkspace().getMarker().setCurNode(null);
   Blockly.getMainWorkspace().getMarker().hide();
 };
 
@@ -268,7 +268,7 @@ Blockly.navigation.focusFlyout_ = function() {
     if (topBlocks.length > 0) {
       topBlock = topBlocks[0];
       var astNode = Blockly.ASTNode.createStackNode(topBlock);
-      Blockly.navigation.getFlyoutCursor_().setLocation(astNode);
+      Blockly.navigation.getFlyoutCursor_().setCurNode(astNode);
     }
   }
 };
@@ -315,14 +315,14 @@ Blockly.navigation.insertFromFlyout = function() {
   // enough time for them to become unhidden in the user's mouse movements,
   // but not here.
   newBlock.setConnectionsHidden(false);
-  Blockly.getMainWorkspace().getCursor().setLocation(
+  Blockly.getMainWorkspace().getCursor().setCurNode(
       Blockly.ASTNode.createBlockNode(newBlock));
   if (!Blockly.navigation.modify_()) {
     Blockly.navigation.warn_('Something went wrong while inserting a block from the flyout.');
   }
 
   Blockly.navigation.focusWorkspace_();
-  Blockly.getMainWorkspace().getCursor().setLocation(Blockly.navigation.getTopNode(newBlock));
+  Blockly.getMainWorkspace().getCursor().setCurNode(Blockly.navigation.getTopNode(newBlock));
   Blockly.navigation.removeMark_();
 };
 
@@ -649,7 +649,7 @@ Blockly.navigation.disconnectBlocks_ = function() {
   rootBlock.bringToFront();
 
   var connectionNode = Blockly.ASTNode.createConnectionNode(superiorConnection);
-  Blockly.getMainWorkspace().getCursor().setLocation(connectionNode);
+  Blockly.getMainWorkspace().getCursor().setCurNode(connectionNode);
 };
 
 /*************************/
@@ -670,13 +670,13 @@ Blockly.navigation.focusWorkspace_ = function() {
   Blockly.navigation.resetFlyout_(reset);
   Blockly.navigation.currentState_ = Blockly.navigation.STATE_WS;
   if (topBlocks.length > 0) {
-    cursor.setLocation(Blockly.navigation.getTopNode(topBlocks[0]));
+    cursor.setCurNode(Blockly.navigation.getTopNode(topBlocks[0]));
   } else {
     var ws = Blockly.getMainWorkspace();
     // TODO: Find the center of the visible workspace.
     var wsCoord = new Blockly.utils.Coordinate(100, 100);
     var wsNode = Blockly.ASTNode.createWorkspaceNode(ws, wsCoord);
-    cursor.setLocation(wsNode);
+    cursor.setCurNode(wsNode);
   }
 };
 
@@ -746,18 +746,18 @@ Blockly.navigation.moveCursorOnBlockDelete = function(deletedBlock) {
         var topConnection = block.previousConnection ?
           block.previousConnection : block.outputConnection;
         if (topConnection) {
-          cursor.setLocation(
+          cursor.setCurNode(
               Blockly.ASTNode.createConnectionNode(topConnection.targetConnection));
         }
       } else {
         // If the block is by itself move the cursor to the workspace.
-        cursor.setLocation(Blockly.ASTNode.createWorkspaceNode(block.workspace,
+        cursor.setCurNode(Blockly.ASTNode.createWorkspaceNode(block.workspace,
             block.getRelativeToSurfaceXY()));
       }
     // If the cursor is on a block whose parent is being deleted, move the
     // cursor to the workspace.
     } else if (deletedBlock.getChildren(false).indexOf(block) > -1) {
-      cursor.setLocation(Blockly.ASTNode.createWorkspaceNode(block.workspace,
+      cursor.setCurNode(Blockly.ASTNode.createWorkspaceNode(block.workspace,
           block.getRelativeToSurfaceXY()));
     }
   }
@@ -776,7 +776,7 @@ Blockly.navigation.moveCursorOnBlockMutation = function(mutatedBlock) {
     var block = Blockly.navigation.getSourceBlock_(curNode);
 
     if (block === mutatedBlock) {
-      cursor.setLocation(Blockly.ASTNode.createBlockNode(block));
+      cursor.setCurNode(Blockly.ASTNode.createBlockNode(block));
     }
   }
 };
diff --git a/demos/keyboard_nav/basic_cursor.js b/demos/keyboard_nav/basic_cursor.js
index 03137b8e5..ddbf5c3ea 100644
--- a/demos/keyboard_nav/basic_cursor.js
+++ b/demos/keyboard_nav/basic_cursor.js
@@ -165,7 +165,7 @@ Blockly.BasicCursor.prototype.next = function() {
   var newNode = this.getNextNode_(curNode);
 
   if (newNode) {
-    this.setLocation(newNode);
+    this.setCurNode(newNode);
   }
   return newNode;
 };
@@ -195,7 +195,7 @@ Blockly.BasicCursor.prototype.prev = function() {
   var newNode = this.getPreviousNode_(curNode);
   
   if (newNode) {
-    this.setLocation(newNode);
+    this.setCurNode(newNode);
   }
   return newNode;
 };
diff --git a/demos/keyboard_nav/index.html b/demos/keyboard_nav/index.html
index 11bbd3089..4be13c5c8 100644
--- a/demos/keyboard_nav/index.html
+++ b/demos/keyboard_nav/index.html
@@ -295,7 +295,7 @@
         Blockly.getMainWorkspace().setCursor(new Blockly.Cursor());
       }
       if (oldCurNode) {
-        Blockly.getMainWorkspace().getCursor().setLocation(oldCurNode);
+        Blockly.getMainWorkspace().getCursor().setCurNode(oldCurNode);
       }
       document.activeElement.blur();
     }
diff --git a/tests/mocha/cursor_test.js b/tests/mocha/cursor_test.js
index 161715786..f574310cf 100644
--- a/tests/mocha/cursor_test.js
+++ b/tests/mocha/cursor_test.js
@@ -75,14 +75,14 @@ suite('Cursor', function() {
 
   test('Next - From a block skip over next connection', function() {
     var blockNode = Blockly.ASTNode.createBlockNode(this.blocks.A);
-    this.cursor.setLocation(blockNode);
+    this.cursor.setCurNode(blockNode);
     this.cursor.next();
     var curNode = this.cursor.getCurNode();
     assertEquals(curNode.getLocation(), this.blocks.B.previousConnection);
   });
   test('Next - From last block in a stack go to next connection', function() {
     var blockNode = Blockly.ASTNode.createBlockNode(this.blocks.B);
-    this.cursor.setLocation(blockNode);
+    this.cursor.setCurNode(blockNode);
     this.cursor.next();
     var curNode = this.cursor.getCurNode();
     assertEquals(curNode.getLocation(), this.blocks.B.nextConnection);
@@ -90,7 +90,7 @@ suite('Cursor', function() {
 
   test('In - From input skip over output connection', function() {
     var inputNode = Blockly.ASTNode.createInputNode(this.blocks.A.inputList[0]);
-    this.cursor.setLocation(inputNode);
+    this.cursor.setCurNode(inputNode);
     this.cursor.in();
     var curNode = this.cursor.getCurNode();
     assertEquals(curNode.getLocation(), this.blocks.E);
@@ -99,7 +99,7 @@ suite('Cursor', function() {
   test('Prev - From previous connection skip over next connection', function() {
     var prevConnection = this.blocks.B.previousConnection;
     var prevConnectionNode = Blockly.ASTNode.createConnectionNode(prevConnection);
-    this.cursor.setLocation(prevConnectionNode);
+    this.cursor.setCurNode(prevConnectionNode);
     this.cursor.prev();
     var curNode = this.cursor.getCurNode();
     assertEquals(curNode.getLocation(), this.blocks.A.previousConnection);
diff --git a/tests/mocha/navigation_modify_test.js b/tests/mocha/navigation_modify_test.js
index 6603b82ca..ce64d7966 100644
--- a/tests/mocha/navigation_modify_test.js
+++ b/tests/mocha/navigation_modify_test.js
@@ -37,25 +37,25 @@ suite('Insert/Modify', function() {
     // TODO: Marked connection or cursor connection is already connected.
     suite('Marker on next', function() {
       setup(function() {
-        this.workspace.getMarker().setLocation(
+        this.workspace.getMarker().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_1.nextConnection));
       });
       test('Cursor on workspace', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createWorkspaceNode(this.workspace,
                 new Blockly.utils.Coordinate(0, 0)));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on compatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_2.previousConnection));
         chai.assert.isTrue(Blockly.navigation.modify_());
         chai.assert.equal(this.stack_block_1.getNextBlock().id, 'stack_block_2');
       });
       test('Cursor on incompatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_2.nextConnection));
         // Connect method will try to find a way to connect blocks with
@@ -64,14 +64,14 @@ suite('Insert/Modify', function() {
         chai.assert.equal(this.stack_block_1.getNextBlock(), this.stack_block_2);
       });
       test('Cursor on really incompatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_1.outputConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
         chai.assert.isNull(this.stack_block_1.getNextBlock());
       });
       test('Cursor on block', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.stack_block_2));
         chai.assert.isTrue(Blockly.navigation.modify_());
@@ -81,40 +81,40 @@ suite('Insert/Modify', function() {
 
     suite('Marker on previous', function() {
       setup(function() {
-        this.workspace.getMarker().setLocation(
+        this.workspace.getMarker().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_1.previousConnection));
       });
       test('Cursor on compatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_2.nextConnection));
         chai.assert.isTrue(Blockly.navigation.modify_());
         chai.assert.equal(this.stack_block_1.getPreviousBlock().id, 'stack_block_2');
       });
       test('Cursor on incompatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_2.previousConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
         chai.assert.isNull(this.stack_block_1.getPreviousBlock());
       });
       test('Cursor on really incompatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_1.outputConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
         chai.assert.isNull(this.stack_block_1.getNextBlock());
       });
       test('Cursor on block', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.stack_block_2));
         chai.assert.isTrue(Blockly.navigation.modify_());
         chai.assert.equal(this.stack_block_1.getPreviousBlock().id, 'stack_block_2');
       });
       test('Cursor on incompatible block', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.row_block_1));
         chai.assert.isFalse(Blockly.navigation.modify_());
@@ -124,19 +124,19 @@ suite('Insert/Modify', function() {
 
     suite('Marker on value input', function() {
       setup(function() {
-        this.workspace.getMarker().setLocation(
+        this.workspace.getMarker().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_1.inputList[0].connection));
       });
       test('Cursor on compatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_2.outputConnection));
         chai.assert.isTrue(Blockly.navigation.modify_());
         chai.assert.equal(this.row_block_2.getParent().id, 'row_block_1');
       });
       test('Cursor on incompatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_2.inputList[0].connection));
         // Connect method will try to find a way to connect blocks with
@@ -146,13 +146,13 @@ suite('Insert/Modify', function() {
             this.row_block_2);
       });
       test('Cursor on really incompatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_1.previousConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on block', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.row_block_2));
         chai.assert.isTrue(Blockly.navigation.modify_());
@@ -165,12 +165,12 @@ suite('Insert/Modify', function() {
         this.statement_block_1.inputList[0].connection.connect(
             this.stack_block_1.previousConnection);
         this.stack_block_1.nextConnection.connect(this.stack_block_2.previousConnection);
-        this.workspace.getMarker().setLocation(
+        this.workspace.getMarker().setCurNode(
             Blockly.ASTNode.createInputNode(
                 this.statement_block_1.inputList[0]));
       });
       test('Cursor on block inside statement', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_2.previousConnection));
         chai.assert.isTrue(Blockly.navigation.modify_());
@@ -178,14 +178,14 @@ suite('Insert/Modify', function() {
             this.statement_block_1);
       });
       test('Cursor on stack', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createStackNode(
                 this.statement_block_2));
         chai.assert.isTrue(Blockly.navigation.modify_());
         chai.assert.equal(this.statement_block_2.getParent().id, 'statement_block_1');
       });
       test('Cursor on incompatible type', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_1.outputConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
@@ -196,31 +196,31 @@ suite('Insert/Modify', function() {
 
     suite('Marker on output', function() {
       setup(function() {
-        this.workspace.getMarker().setLocation(
+        this.workspace.getMarker().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_1.outputConnection));
       });
       test('Cursor on compatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_2.inputList[0].connection));
         chai.assert.isTrue(Blockly.navigation.modify_());
         chai.assert.equal(this.row_block_1.getParent().id, 'row_block_2');
       });
       test('Cursor on incompatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_2.outputConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on really incompatible connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_1.previousConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on block', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.row_block_2));
         chai.assert.isTrue(Blockly.navigation.modify_());
@@ -232,12 +232,12 @@ suite('Insert/Modify', function() {
 
   suite('Marked Workspace', function() {
     setup(function() {
-      this.workspace.getMarker().setLocation(
+      this.workspace.getMarker().setCurNode(
           Blockly.ASTNode.createWorkspaceNode(
               this.workspace, new Blockly.utils.Coordinate(100, 200)));
     });
     test('Cursor on row block', function() {
-      this.workspace.getCursor().setLocation(
+      this.workspace.getCursor().setCurNode(
           Blockly.ASTNode.createBlockNode(
               this.row_block_1));
       chai.assert.isTrue(Blockly.navigation.modify_());
@@ -247,7 +247,7 @@ suite('Insert/Modify', function() {
     });
 
     test('Cursor on output connection', function() {
-      this.workspace.getCursor().setLocation(
+      this.workspace.getCursor().setCurNode(
           Blockly.ASTNode.createConnectionNode(
               this.row_block_1.outputConnection));
       chai.assert.isTrue(Blockly.navigation.modify_());
@@ -257,7 +257,7 @@ suite('Insert/Modify', function() {
     });
 
     test('Cursor on previous connection', function() {
-      this.workspace.getCursor().setLocation(
+      this.workspace.getCursor().setCurNode(
           Blockly.ASTNode.createConnectionNode(
               this.stack_block_1.previousConnection));
       chai.assert.isTrue(Blockly.navigation.modify_());
@@ -267,7 +267,7 @@ suite('Insert/Modify', function() {
     });
 
     test('Cursor on input connection', function() {
-      this.workspace.getCursor().setLocation(
+      this.workspace.getCursor().setCurNode(
           Blockly.ASTNode.createConnectionNode(
               this.row_block_1.inputList[0].connection));
       // Move the source block to the marked location on the workspace.
@@ -275,7 +275,7 @@ suite('Insert/Modify', function() {
     });
 
     test('Cursor on next connection', function() {
-      this.workspace.getCursor().setLocation(
+      this.workspace.getCursor().setCurNode(
           Blockly.ASTNode.createConnectionNode(
               this.stack_block_1.nextConnection));
       // Move the source block to the marked location on the workspace.
@@ -286,7 +286,7 @@ suite('Insert/Modify', function() {
       this.row_block_1.inputList[0].connection.connect(
           this.row_block_2.outputConnection);
 
-      this.workspace.getCursor().setLocation(
+      this.workspace.getCursor().setCurNode(
           Blockly.ASTNode.createBlockNode(
               this.row_block_2));
 
@@ -301,7 +301,7 @@ suite('Insert/Modify', function() {
       this.stack_block_1.nextConnection.connect(
           this.stack_block_2.previousConnection);
 
-      this.workspace.getCursor().setLocation(
+      this.workspace.getCursor().setCurNode(
           Blockly.ASTNode.createBlockNode(
               this.stack_block_2));
 
@@ -313,7 +313,7 @@ suite('Insert/Modify', function() {
     });
 
     test('Cursor on workspace', function() {
-      this.workspace.getCursor().setLocation(
+      this.workspace.getCursor().setCurNode(
           Blockly.ASTNode.createWorkspaceNode(
               this.workspace, new Blockly.utils.Coordinate(100, 100)));
       chai.assert.isFalse(Blockly.navigation.modify_());
@@ -327,12 +327,12 @@ suite('Insert/Modify', function() {
       // These tests are using a stack block, but do not depend on the type of
       // the block.
       setup(function() {
-        this.workspace.getMarker().setLocation(
+        this.workspace.getMarker().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.stack_block_1));
       });
       test('Cursor on workspace', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createWorkspaceNode(
                 this.workspace, new Blockly.utils.Coordinate(100, 100)));
         chai.assert.isFalse(Blockly.navigation.modify_());
@@ -341,30 +341,30 @@ suite('Insert/Modify', function() {
     });
     suite('Marked stack block', function() {
       setup(function() {
-        this.workspace.getMarker().setLocation(
+        this.workspace.getMarker().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.stack_block_1));
       });
       test('Cursor on row block', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.row_block_1));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on stack block', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.stack_block_1));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on next connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_2.nextConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on previous connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.stack_block_2.previousConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
@@ -372,30 +372,30 @@ suite('Insert/Modify', function() {
     });
     suite('Marked row block', function() {
       setup(function() {
-        this.workspace.getMarker().setLocation(
+        this.workspace.getMarker().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.row_block_1));
       });
       test('Cursor on stack block', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.stack_block_1));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on row block', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createBlockNode(
                 this.row_block_1));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on value input connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_2.inputList[0].connection));
         chai.assert.isFalse(Blockly.navigation.modify_());
       });
       test('Cursor on output connection', function() {
-        this.workspace.getCursor().setLocation(
+        this.workspace.getCursor().setCurNode(
             Blockly.ASTNode.createConnectionNode(
                 this.row_block_2.outputConnection));
         chai.assert.isFalse(Blockly.navigation.modify_());
diff --git a/tests/mocha/navigation_test.js b/tests/mocha/navigation_test.js
index 81aeadb76..e6d8f468f 100644
--- a/tests/mocha/navigation_test.js
+++ b/tests/mocha/navigation_test.js
@@ -161,7 +161,7 @@ suite('Navigation', function() {
 
     test('Previous', function() {
       var flyoutBlocks = this.workspace.getFlyout().getWorkspace().getTopBlocks();
-      Blockly.navigation.getFlyoutCursor_().setLocation(
+      Blockly.navigation.getFlyoutCursor_().setCurNode(
           Blockly.ASTNode.createStackNode(flyoutBlocks[1]));
       var flyoutBlock = Blockly.navigation.getFlyoutCursor_().getCurNode().getLocation();
       chai.assert.equal(flyoutBlock.getFieldValue("TEXT"),
@@ -297,7 +297,7 @@ suite('Navigation', function() {
     });
 
     test('Mark', function() {
-      this.workspace.getCursor().setLocation(
+      this.workspace.getCursor().setCurNode(
           Blockly.ASTNode.createConnectionNode(this.basicBlock.previousConnection));
       this.mockEvent.keyCode = Blockly.utils.KeyCodes.ENTER;
       chai.assert.isTrue(Blockly.navigation.onKeyPress(this.mockEvent));
@@ -332,7 +332,7 @@ suite('Navigation', function() {
     test('Action does not exist', function() {
       var field = new Blockly.FieldDropdown([['a','b'], ['c','d']]);
       sinon.spy(field, 'onBlocklyAction');
-      this.workspace.getCursor().setLocation(Blockly.ASTNode.createFieldNode(field));
+      this.workspace.getCursor().setCurNode(Blockly.ASTNode.createFieldNode(field));
 
       this.mockEvent.keyCode = Blockly.utils.KeyCodes.N;
       var isHandled = Blockly.navigation.onKeyPress(this.mockEvent);
@@ -347,7 +347,7 @@ suite('Navigation', function() {
       sinon.stub(field, 'onBlocklyAction').callsFake(function(){
         return true;
       });
-      this.workspace.getCursor().setLocation(Blockly.ASTNode.createFieldNode(field));
+      this.workspace.getCursor().setCurNode(Blockly.ASTNode.createFieldNode(field));
 
       var isHandled = Blockly.navigation.onBlocklyAction(Blockly.navigation.ACTION_OUT);
       chai.assert.isTrue(isHandled);
@@ -359,7 +359,7 @@ suite('Navigation', function() {
     test('Action exists - field does not handle action', function() {
       var field = new Blockly.FieldDropdown([['a','b'], ['c','d']]);
       sinon.spy(field, 'onBlocklyAction');
-      this.workspace.getCursor().setLocation(Blockly.ASTNode.createFieldNode(field));
+      this.workspace.getCursor().setCurNode(Blockly.ASTNode.createFieldNode(field));
 
       this.mockEvent.keyCode = Blockly.utils.KeyCodes.A;
       var isHandled = Blockly.navigation.onBlocklyAction(Blockly.navigation.ACTION_OUT);
@@ -441,14 +441,14 @@ suite('Navigation', function() {
 
       test('Perform valid action for read only', function() {
         var astNode = Blockly.ASTNode.createBlockNode(this.fieldBlock1);
-        this.workspace.getCursor().setLocation(astNode);
+        this.workspace.getCursor().setCurNode(astNode);
         this.mockEvent.keyCode = Blockly.utils.KeyCodes.S;
         chai.assert.isTrue(Blockly.navigation.onKeyPress(this.mockEvent));
       });
 
       test('Perform invalid action for read only', function() {
         var astNode = Blockly.ASTNode.createBlockNode(this.fieldBlock1);
-        this.workspace.getCursor().setLocation(astNode);
+        this.workspace.getCursor().setCurNode(astNode);
         this.mockEvent.keyCode = Blockly.utils.KeyCodes.I;
         chai.assert.isFalse(Blockly.navigation.onKeyPress(this.mockEvent));
       });
@@ -456,7 +456,7 @@ suite('Navigation', function() {
       test('Try to perform action on a field', function() {
         var field = this.fieldBlock1.inputList[0].fieldRow[0];
         var astNode = Blockly.ASTNode.createFieldNode(field);
-        this.workspace.getCursor().setLocation(astNode);
+        this.workspace.getCursor().setCurNode(astNode);
         this.mockEvent.keyCode = Blockly.utils.KeyCodes.ENTER;
         chai.assert.isFalse(Blockly.navigation.onKeyPress(this.mockEvent));
       });
@@ -491,7 +491,7 @@ suite('Navigation', function() {
     test('Insert from flyout with a valid connection marked', function() {
       var previousConnection = this.basicBlock.previousConnection;
       var prevNode = Blockly.ASTNode.createConnectionNode(previousConnection);
-      this.workspace.getMarker().setLocation(prevNode);
+      this.workspace.getMarker().setCurNode(prevNode);
 
       Blockly.navigation.focusToolbox_();
       Blockly.navigation.focusFlyout_();
@@ -523,10 +523,10 @@ suite('Navigation', function() {
 
     test('Connect two blocks that are on the workspace', function() {
       var targetNode = Blockly.ASTNode.createConnectionNode(this.basicBlock.previousConnection);
-      this.workspace.getMarker().setLocation(targetNode);
+      this.workspace.getMarker().setCurNode(targetNode);
 
       var sourceNode = Blockly.ASTNode.createConnectionNode(this.basicBlock2.nextConnection);
-      this.workspace.getCursor().setLocation(sourceNode);
+      this.workspace.getCursor().setCurNode(sourceNode);
 
       Blockly.navigation.modify_();
       var insertedBlock = this.basicBlock.previousConnection.targetBlock();
@@ -671,7 +671,7 @@ suite('Navigation', function() {
       this.basicBlockA.nextConnection.connect(this.basicBlockB.previousConnection);
       var astNode = Blockly.ASTNode.createBlockNode(this.basicBlockB);
       // Set the cursor to be on the child block
-      this.workspace.getCursor().setLocation(astNode);
+      this.workspace.getCursor().setCurNode(astNode);
       // Remove the child block
       this.basicBlockB.dispose();
       chai.assert.equal(this.workspace.getCursor().getCurNode().getType(),
@@ -680,7 +680,7 @@ suite('Navigation', function() {
 
     test('Delete block - no parent ', function() {
       var astNode = Blockly.ASTNode.createBlockNode(this.basicBlockB);
-      this.workspace.getCursor().setLocation(astNode);
+      this.workspace.getCursor().setCurNode(astNode);
       this.basicBlockB.dispose();
       chai.assert.equal(this.workspace.getCursor().getCurNode().getType(),
           Blockly.ASTNode.types.WORKSPACE);
@@ -690,7 +690,7 @@ suite('Navigation', function() {
       this.basicBlockA.nextConnection.connect(this.basicBlockB.previousConnection);
       var astNode = Blockly.ASTNode.createBlockNode(this.basicBlockB);
       // Set the cursor to be on the child block
-      this.workspace.getCursor().setLocation(astNode);
+      this.workspace.getCursor().setCurNode(astNode);
       // Remove the parent block
       this.basicBlockA.dispose();
       chai.assert.equal(this.workspace.getCursor().getCurNode().getType(),
@@ -701,7 +701,7 @@ suite('Navigation', function() {
       this.basicBlockA.nextConnection.connect(this.basicBlockB.previousConnection);
       var astNode = Blockly.ASTNode.createStackNode(this.basicBlockA);
       // Set the cursor to be on the stack
-      this.workspace.getCursor().setLocation(astNode);
+      this.workspace.getCursor().setCurNode(astNode);
       // Remove the top block in the stack
       this.basicBlockA.dispose();
       chai.assert.equal(this.workspace.getCursor().getCurNode().getType(),