Headless workspaces and blocks.

blockly_compressed.js

@@ -93,7 +93,12 @@ goog.array.defaultCompareEquality=function(a,b){return a===b};goog.array.binaryI
 goog.array.toObject=function(a,b,c){var d={};goog.array.forEach(a,function(e,f){d[b.call(c,e,f,a)]=e});return d};goog.array.range=function(a,b,c){var d=[],e=0,f=a;c=c||1;void 0!==b&&(e=a,f=b);if(0>c*(f-e))return[];if(0<c)for(a=e;a<f;a+=c)d.push(a);else for(a=e;a>f;a+=c)d.push(a);return d};goog.array.repeat=function(a,b){for(var c=[],d=0;d<b;d++)c[d]=a;return c};
 goog.array.flatten=function(a){for(var b=[],c=0;c<arguments.length;c++){var d=arguments[c];if(goog.isArray(d))for(var e=0;e<d.length;e+=8192)for(var f=goog.array.slice(d,e,e+8192),f=goog.array.flatten.apply(null,f),g=0;g<f.length;g++)b.push(f[g]);else b.push(d)}return b};goog.array.rotate=function(a,b){goog.asserts.assert(null!=a.length);a.length&&(b%=a.length,0<b?goog.array.ARRAY_PROTOTYPE_.unshift.apply(a,a.splice(-b,b)):0>b&&goog.array.ARRAY_PROTOTYPE_.push.apply(a,a.splice(0,-b)));return a};
 goog.array.moveItem=function(a,b,c){goog.asserts.assert(0<=b&&b<a.length);goog.asserts.assert(0<=c&&c<a.length);b=goog.array.ARRAY_PROTOTYPE_.splice.call(a,b,1);goog.array.ARRAY_PROTOTYPE_.splice.call(a,c,0,b[0])};goog.array.zip=function(a){if(!arguments.length)return[];for(var b=[],c=0;;c++){for(var d=[],e=0;e<arguments.length;e++){var f=arguments[e];if(c>=f.length)return b;d.push(f[c])}b.push(d)}};
-goog.array.shuffle=function(a,b){for(var c=b||Math.random,d=a.length-1;0<d;d--){var e=Math.floor(c()*(d+1)),f=a[d];a[d]=a[e];a[e]=f}};goog.labs={};goog.labs.userAgent={};goog.labs.userAgent.util={};goog.labs.userAgent.util.getNativeUserAgentString_=function(){var a=goog.labs.userAgent.util.getNavigator_();return a&&(a=a.userAgent)?a:""};goog.labs.userAgent.util.getNavigator_=function(){return goog.global.navigator};goog.labs.userAgent.util.userAgent_=goog.labs.userAgent.util.getNativeUserAgentString_();goog.labs.userAgent.util.setUserAgent=function(a){goog.labs.userAgent.util.userAgent_=a||goog.labs.userAgent.util.getNativeUserAgentString_()};
+goog.array.shuffle=function(a,b){for(var c=b||Math.random,d=a.length-1;0<d;d--){var e=Math.floor(c()*(d+1)),f=a[d];a[d]=a[e];a[e]=f}};goog.math={};goog.math.randomInt=function(a){return Math.floor(Math.random()*a)};goog.math.uniformRandom=function(a,b){return a+Math.random()*(b-a)};goog.math.clamp=function(a,b,c){return Math.min(Math.max(a,b),c)};goog.math.modulo=function(a,b){var c=a%b;return 0>c*b?c+b:c};goog.math.lerp=function(a,b,c){return a+c*(b-a)};goog.math.nearlyEquals=function(a,b,c){return Math.abs(a-b)<=(c||1E-6)};goog.math.standardAngle=function(a){return goog.math.modulo(a,360)};
+goog.math.standardAngleInRadians=function(a){return goog.math.modulo(a,2*Math.PI)};goog.math.toRadians=function(a){return a*Math.PI/180};goog.math.toDegrees=function(a){return 180*a/Math.PI};goog.math.angleDx=function(a,b){return b*Math.cos(goog.math.toRadians(a))};goog.math.angleDy=function(a,b){return b*Math.sin(goog.math.toRadians(a))};goog.math.angle=function(a,b,c,d){return goog.math.standardAngle(goog.math.toDegrees(Math.atan2(d-b,c-a)))};
+goog.math.angleDifference=function(a,b){var c=goog.math.standardAngle(b)-goog.math.standardAngle(a);180<c?c-=360:-180>=c&&(c=360+c);return c};goog.math.sign=function(a){return 0==a?0:0>a?-1:1};
+goog.math.longestCommonSubsequence=function(a,b,c,d){c=c||function(a,b){return a==b};d=d||function(b,c){return a[b]};for(var e=a.length,f=b.length,g=[],h=0;h<e+1;h++)g[h]=[],g[h][0]=0;for(var k=0;k<f+1;k++)g[0][k]=0;for(h=1;h<=e;h++)for(k=1;k<=f;k++)c(a[h-1],b[k-1])?g[h][k]=g[h-1][k-1]+1:g[h][k]=Math.max(g[h-1][k],g[h][k-1]);for(var l=[],h=e,k=f;0<h&&0<k;)c(a[h-1],b[k-1])?(l.unshift(d(h-1,k-1)),h--,k--):g[h-1][k]>g[h][k-1]?h--:k--;return l};
+goog.math.sum=function(a){return goog.array.reduce(arguments,function(a,c){return a+c},0)};goog.math.average=function(a){return goog.math.sum.apply(null,arguments)/arguments.length};goog.math.sampleVariance=function(a){var b=arguments.length;if(2>b)return 0;var c=goog.math.average.apply(null,arguments);return goog.math.sum.apply(null,goog.array.map(arguments,function(a){return Math.pow(a-c,2)}))/(b-1)};goog.math.standardDeviation=function(a){return Math.sqrt(goog.math.sampleVariance.apply(null,arguments))};
+goog.math.isInt=function(a){return isFinite(a)&&0==a%1};goog.math.isFiniteNumber=function(a){return isFinite(a)&&!isNaN(a)};goog.math.log10Floor=function(a){if(0<a){var b=Math.round(Math.log(a)*Math.LOG10E);return b-(parseFloat("1e"+b)>a)}return 0==a?-Infinity:NaN};goog.math.safeFloor=function(a,b){goog.asserts.assert(!goog.isDef(b)||0<b);return Math.floor(a+(b||2E-15))};goog.math.safeCeil=function(a,b){goog.asserts.assert(!goog.isDef(b)||0<b);return Math.ceil(a-(b||2E-15))};goog.labs={};goog.labs.userAgent={};goog.labs.userAgent.util={};goog.labs.userAgent.util.getNativeUserAgentString_=function(){var a=goog.labs.userAgent.util.getNavigator_();return a&&(a=a.userAgent)?a:""};goog.labs.userAgent.util.getNavigator_=function(){return goog.global.navigator};goog.labs.userAgent.util.userAgent_=goog.labs.userAgent.util.getNativeUserAgentString_();goog.labs.userAgent.util.setUserAgent=function(a){goog.labs.userAgent.util.userAgent_=a||goog.labs.userAgent.util.getNativeUserAgentString_()};
 goog.labs.userAgent.util.getUserAgent=function(){return goog.labs.userAgent.util.userAgent_};goog.labs.userAgent.util.matchUserAgent=function(a){var b=goog.labs.userAgent.util.getUserAgent();return goog.string.contains(b,a)};goog.labs.userAgent.util.matchUserAgentIgnoreCase=function(a){var b=goog.labs.userAgent.util.getUserAgent();return goog.string.caseInsensitiveContains(b,a)};
 goog.labs.userAgent.util.extractVersionTuples=function(a){for(var b=RegExp("(\\w[\\w ]+)/([^\\s]+)\\s*(?:\\((.*?)\\))?","g"),c=[],d;d=b.exec(a);)c.push([d[1],d[2],d[3]||void 0]);return c};goog.object={};goog.object.forEach=function(a,b,c){for(var d in a)b.call(c,a[d],d,a)};goog.object.filter=function(a,b,c){var d={},e;for(e in a)b.call(c,a[e],e,a)&&(d[e]=a[e]);return d};goog.object.map=function(a,b,c){var d={},e;for(e in a)d[e]=b.call(c,a[e],e,a);return d};goog.object.some=function(a,b,c){for(var d in a)if(b.call(c,a[d],d,a))return!0;return!1};goog.object.every=function(a,b,c){for(var d in a)if(!b.call(c,a[d],d,a))return!1;return!0};
 goog.object.getCount=function(a){var b=0,c;for(c in a)b++;return b};goog.object.getAnyKey=function(a){for(var b in a)return b};goog.object.getAnyValue=function(a){for(var b in a)return a[b]};goog.object.contains=function(a,b){return goog.object.containsValue(a,b)};goog.object.getValues=function(a){var b=[],c=0,d;for(d in a)b[c++]=a[d];return b};goog.object.getKeys=function(a){var b=[],c=0,d;for(d in a)b[c++]=d;return b};
@@ -125,12 +130,7 @@ goog.userAgent.ANDROID=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_ANDR
 goog.userAgent.determineVersion_=function(){var a="",b;if(goog.userAgent.OPERA&&goog.global.opera)return a=goog.global.opera.version,goog.isFunction(a)?a():a;goog.userAgent.GECKO?b=/rv\:([^\);]+)(\)|;)/:goog.userAgent.IE?b=/\b(?:MSIE|rv)[: ]([^\);]+)(\)|;)/:goog.userAgent.WEBKIT&&(b=/WebKit\/(\S+)/);b&&(a=(a=b.exec(goog.userAgent.getUserAgentString()))?a[1]:"");return goog.userAgent.IE&&(b=goog.userAgent.getDocumentMode_(),b>parseFloat(a))?String(b):a};
 goog.userAgent.getDocumentMode_=function(){var a=goog.global.document;return a?a.documentMode:void 0};goog.userAgent.VERSION=goog.userAgent.determineVersion_();goog.userAgent.compare=function(a,b){return goog.string.compareVersions(a,b)};goog.userAgent.isVersionOrHigherCache_={};
 goog.userAgent.isVersionOrHigher=function(a){return goog.userAgent.ASSUME_ANY_VERSION||goog.userAgent.isVersionOrHigherCache_[a]||(goog.userAgent.isVersionOrHigherCache_[a]=0<=goog.string.compareVersions(goog.userAgent.VERSION,a))};goog.userAgent.isVersion=goog.userAgent.isVersionOrHigher;goog.userAgent.isDocumentModeOrHigher=function(a){return goog.userAgent.IE&&goog.userAgent.DOCUMENT_MODE>=a};goog.userAgent.isDocumentMode=goog.userAgent.isDocumentModeOrHigher;
-goog.userAgent.DOCUMENT_MODE=function(){var a=goog.global.document;return a&&goog.userAgent.IE?goog.userAgent.getDocumentMode_()||("CSS1Compat"==a.compatMode?parseInt(goog.userAgent.VERSION,10):5):void 0}();goog.math={};goog.math.randomInt=function(a){return Math.floor(Math.random()*a)};goog.math.uniformRandom=function(a,b){return a+Math.random()*(b-a)};goog.math.clamp=function(a,b,c){return Math.min(Math.max(a,b),c)};goog.math.modulo=function(a,b){var c=a%b;return 0>c*b?c+b:c};goog.math.lerp=function(a,b,c){return a+c*(b-a)};goog.math.nearlyEquals=function(a,b,c){return Math.abs(a-b)<=(c||1E-6)};goog.math.standardAngle=function(a){return goog.math.modulo(a,360)};
-goog.math.standardAngleInRadians=function(a){return goog.math.modulo(a,2*Math.PI)};goog.math.toRadians=function(a){return a*Math.PI/180};goog.math.toDegrees=function(a){return 180*a/Math.PI};goog.math.angleDx=function(a,b){return b*Math.cos(goog.math.toRadians(a))};goog.math.angleDy=function(a,b){return b*Math.sin(goog.math.toRadians(a))};goog.math.angle=function(a,b,c,d){return goog.math.standardAngle(goog.math.toDegrees(Math.atan2(d-b,c-a)))};
-goog.math.angleDifference=function(a,b){var c=goog.math.standardAngle(b)-goog.math.standardAngle(a);180<c?c-=360:-180>=c&&(c=360+c);return c};goog.math.sign=function(a){return 0==a?0:0>a?-1:1};
-goog.math.longestCommonSubsequence=function(a,b,c,d){c=c||function(a,b){return a==b};d=d||function(b,c){return a[b]};for(var e=a.length,f=b.length,g=[],h=0;h<e+1;h++)g[h]=[],g[h][0]=0;for(var k=0;k<f+1;k++)g[0][k]=0;for(h=1;h<=e;h++)for(k=1;k<=f;k++)c(a[h-1],b[k-1])?g[h][k]=g[h-1][k-1]+1:g[h][k]=Math.max(g[h-1][k],g[h][k-1]);for(var l=[],h=e,k=f;0<h&&0<k;)c(a[h-1],b[k-1])?(l.unshift(d(h-1,k-1)),h--,k--):g[h-1][k]>g[h][k-1]?h--:k--;return l};
-goog.math.sum=function(a){return goog.array.reduce(arguments,function(a,c){return a+c},0)};goog.math.average=function(a){return goog.math.sum.apply(null,arguments)/arguments.length};goog.math.sampleVariance=function(a){var b=arguments.length;if(2>b)return 0;var c=goog.math.average.apply(null,arguments);return goog.math.sum.apply(null,goog.array.map(arguments,function(a){return Math.pow(a-c,2)}))/(b-1)};goog.math.standardDeviation=function(a){return Math.sqrt(goog.math.sampleVariance.apply(null,arguments))};
-goog.math.isInt=function(a){return isFinite(a)&&0==a%1};goog.math.isFiniteNumber=function(a){return isFinite(a)&&!isNaN(a)};goog.math.log10Floor=function(a){if(0<a){var b=Math.round(Math.log(a)*Math.LOG10E);return b-(parseFloat("1e"+b)>a)}return 0==a?-Infinity:NaN};goog.math.safeFloor=function(a,b){goog.asserts.assert(!goog.isDef(b)||0<b);return Math.floor(a+(b||2E-15))};goog.math.safeCeil=function(a,b){goog.asserts.assert(!goog.isDef(b)||0<b);return Math.ceil(a-(b||2E-15))};goog.math.Coordinate=function(a,b){this.x=goog.isDef(a)?a:0;this.y=goog.isDef(b)?b:0};goog.math.Coordinate.prototype.clone=function(){return new goog.math.Coordinate(this.x,this.y)};goog.DEBUG&&(goog.math.Coordinate.prototype.toString=function(){return"("+this.x+", "+this.y+")"});goog.math.Coordinate.equals=function(a,b){return a==b?!0:a&&b?a.x==b.x&&a.y==b.y:!1};goog.math.Coordinate.distance=function(a,b){var c=a.x-b.x,d=a.y-b.y;return Math.sqrt(c*c+d*d)};
+goog.userAgent.DOCUMENT_MODE=function(){var a=goog.global.document;return a&&goog.userAgent.IE?goog.userAgent.getDocumentMode_()||("CSS1Compat"==a.compatMode?parseInt(goog.userAgent.VERSION,10):5):void 0}();goog.math.Coordinate=function(a,b){this.x=goog.isDef(a)?a:0;this.y=goog.isDef(b)?b:0};goog.math.Coordinate.prototype.clone=function(){return new goog.math.Coordinate(this.x,this.y)};goog.DEBUG&&(goog.math.Coordinate.prototype.toString=function(){return"("+this.x+", "+this.y+")"});goog.math.Coordinate.equals=function(a,b){return a==b?!0:a&&b?a.x==b.x&&a.y==b.y:!1};goog.math.Coordinate.distance=function(a,b){var c=a.x-b.x,d=a.y-b.y;return Math.sqrt(c*c+d*d)};
 goog.math.Coordinate.magnitude=function(a){return Math.sqrt(a.x*a.x+a.y*a.y)};goog.math.Coordinate.azimuth=function(a){return goog.math.angle(0,0,a.x,a.y)};goog.math.Coordinate.squaredDistance=function(a,b){var c=a.x-b.x,d=a.y-b.y;return c*c+d*d};goog.math.Coordinate.difference=function(a,b){return new goog.math.Coordinate(a.x-b.x,a.y-b.y)};goog.math.Coordinate.sum=function(a,b){return new goog.math.Coordinate(a.x+b.x,a.y+b.y)};
 goog.math.Coordinate.prototype.ceil=function(){this.x=Math.ceil(this.x);this.y=Math.ceil(this.y);return this};goog.math.Coordinate.prototype.floor=function(){this.x=Math.floor(this.x);this.y=Math.floor(this.y);return this};goog.math.Coordinate.prototype.round=function(){this.x=Math.round(this.x);this.y=Math.round(this.y);return this};goog.math.Coordinate.prototype.translate=function(a,b){a instanceof goog.math.Coordinate?(this.x+=a.x,this.y+=a.y):(this.x+=a,goog.isNumber(b)&&(this.y+=b));return this};
 goog.math.Coordinate.prototype.scale=function(a,b){var c=goog.isNumber(b)?b:a;this.x*=a;this.y*=c;return this};goog.math.Coordinate.prototype.rotateRadians=function(a,b){var c=b||new goog.math.Coordinate(0,0),d=this.x,e=this.y,f=Math.cos(a),g=Math.sin(a);this.x=(d-c.x)*f-(e-c.y)*g+c.x;this.y=(d-c.x)*g+(e-c.y)*f+c.y};goog.math.Coordinate.prototype.rotateDegrees=function(a,b){this.rotateRadians(goog.math.toRadians(a),b)};goog.math.Box=function(a,b,c,d){this.top=a;this.right=b;this.bottom=c;this.left=d};goog.math.Box.boundingBox=function(a){for(var b=new goog.math.Box(arguments[0].y,arguments[0].x,arguments[0].y,arguments[0].x),c=1;c<arguments.length;c++){var d=arguments[c];b.top=Math.min(b.top,d.y);b.right=Math.max(b.right,d.x);b.bottom=Math.max(b.bottom,d.y);b.left=Math.min(b.left,d.x)}return b};goog.math.Box.prototype.getWidth=function(){return this.right-this.left};
@@ -802,55 +802,106 @@ goog.cssom.replaceCssRule=function(a,b,c,d){if(c=c||goog.cssom.getParentStyleShe
 goog.cssom.addCssRule=function(a,b,c){if(0>c||void 0==c)c=goog.cssom.getCssRulesFromStyleSheet(a).length;if(a.insertRule)a.insertRule(b,c);else if(b=/^([^\{]+)\{([^\{]+)\}/.exec(b),3==b.length)a.addRule(b[1],b[2],c);else throw Error("Your CSSRule appears to be ill-formatted.");};goog.cssom.removeCssRule=function(a,b){a.deleteRule?a.deleteRule(b):a.removeRule(b)};
 goog.cssom.addCssText=function(a,b){var c=b?b.getDocument():goog.dom.getDocument(),d=c.createElement("style");d.type="text/css";c.getElementsByTagName("head")[0].appendChild(d);d.styleSheet?d.styleSheet.cssText=a:(c=c.createTextNode(a),d.appendChild(c));return d};goog.cssom.getFileNameFromStyleSheet=function(a){return(a=a.href)?/([^\/\?]+)[^\/]*$/.exec(a)[1]:null};
 goog.cssom.getAllCss_=function(a,b){for(var c=[],d=goog.cssom.getAllCssStyleSheets(a),e=0;a=d[e];e++){var f=goog.cssom.getCssRulesFromStyleSheet(a);if(f&&f.length){if(!b)var g=0;for(var h=0,k=f.length,l;h<k;h++)l=f[h],b&&!l.href?(l=goog.cssom.getCssTextFromCssRule(l),c.push(l)):l.href||(l.style&&(l.parentStyleSheet||(l.style["-closure-parent-stylesheet"]=a),l.style["-closure-rule-index"]=g),c.push(l)),b||g++}}return b?c.join(" "):c};
-// Copyright 2012 Google Inc.  Apache License 2.0
-var Blockly={BlockSvg:function(a){this.block_=a;this.svgGroup_=Blockly.createSvgElement("g",{},null);this.svgPathDark_=Blockly.createSvgElement("path",{"class":"blocklyPathDark",transform:"translate(1, 1)"},this.svgGroup_);this.svgPath_=Blockly.createSvgElement("path",{"class":"blocklyPath"},this.svgGroup_);this.svgPathLight_=Blockly.createSvgElement("path",{"class":"blocklyPathLight"},this.svgGroup_);this.svgPath_.tooltip=this.block_;Blockly.Tooltip.bindMouseEvents(this.svgPath_);this.updateMovable()}};
-Blockly.BlockSvg.prototype.height=0;Blockly.BlockSvg.prototype.width=0;Blockly.BlockSvg.INLINE=-1;Blockly.BlockSvg.prototype.init=function(){var a=this.block_;this.updateColour();for(var b=0,c;c=a.inputList[b];b++)c.init();a.mutator&&a.mutator.createIcon()};Blockly.BlockSvg.prototype.updateMovable=function(){this.block_.isMovable()?Blockly.addClass_(this.svgGroup_,"blocklyDraggable"):Blockly.removeClass_(this.svgGroup_,"blocklyDraggable")};Blockly.BlockSvg.prototype.getRootElement=function(){return this.svgGroup_};
-Blockly.BlockSvg.SEP_SPACE_X=10;Blockly.BlockSvg.SEP_SPACE_Y=10;Blockly.BlockSvg.INLINE_PADDING_Y=5;Blockly.BlockSvg.MIN_BLOCK_Y=25;Blockly.BlockSvg.TAB_HEIGHT=20;Blockly.BlockSvg.TAB_WIDTH=8;Blockly.BlockSvg.NOTCH_WIDTH=30;Blockly.BlockSvg.CORNER_RADIUS=8;Blockly.BlockSvg.FIELD_HEIGHT=18;Blockly.BlockSvg.DISTANCE_45_INSIDE=(1-Math.SQRT1_2)*(Blockly.BlockSvg.CORNER_RADIUS-1)+1;Blockly.BlockSvg.DISTANCE_45_OUTSIDE=(1-Math.SQRT1_2)*(Blockly.BlockSvg.CORNER_RADIUS+1)-1;
-Blockly.BlockSvg.NOTCH_PATH_LEFT="l 6,4 3,0 6,-4";Blockly.BlockSvg.NOTCH_PATH_LEFT_HIGHLIGHT="l 6.5,4 2,0 6.5,-4";Blockly.BlockSvg.NOTCH_PATH_RIGHT="l -6,4 -3,0 -6,-4";Blockly.BlockSvg.JAGGED_TEETH="l 8,0 0,4 8,4 -16,8 8,4";Blockly.BlockSvg.JAGGED_TEETH_HEIGHT=20;Blockly.BlockSvg.JAGGED_TEETH_WIDTH=15;Blockly.BlockSvg.TAB_PATH_DOWN="v 5 c 0,10 -"+Blockly.BlockSvg.TAB_WIDTH+",-8 -"+Blockly.BlockSvg.TAB_WIDTH+",7.5 s "+Blockly.BlockSvg.TAB_WIDTH+",-2.5 "+Blockly.BlockSvg.TAB_WIDTH+",7.5";
-Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL="v 6.5 m -"+.98*Blockly.BlockSvg.TAB_WIDTH+",2.5 q -"+.05*Blockly.BlockSvg.TAB_WIDTH+",10 "+.27*Blockly.BlockSvg.TAB_WIDTH+",10 m "+.71*Blockly.BlockSvg.TAB_WIDTH+",-2.5 v 1.5";Blockly.BlockSvg.TOP_LEFT_CORNER_START="m 0,"+Blockly.BlockSvg.CORNER_RADIUS;Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_RTL="m "+Blockly.BlockSvg.DISTANCE_45_INSIDE+","+Blockly.BlockSvg.DISTANCE_45_INSIDE;
-Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_LTR="m 1,"+(Blockly.BlockSvg.CORNER_RADIUS-1);Blockly.BlockSvg.TOP_LEFT_CORNER="A "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,1 "+Blockly.BlockSvg.CORNER_RADIUS+",0";Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT="A "+(Blockly.BlockSvg.CORNER_RADIUS-1)+","+(Blockly.BlockSvg.CORNER_RADIUS-1)+" 0 0,1 "+Blockly.BlockSvg.CORNER_RADIUS+",1";
-Blockly.BlockSvg.INNER_TOP_LEFT_CORNER=Blockly.BlockSvg.NOTCH_PATH_RIGHT+" h -"+(Blockly.BlockSvg.NOTCH_WIDTH-15-Blockly.BlockSvg.CORNER_RADIUS)+" a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 -"+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS;Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER="a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS;
-Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL="a "+(Blockly.BlockSvg.CORNER_RADIUS+1)+","+(Blockly.BlockSvg.CORNER_RADIUS+1)+" 0 0,0 "+(-Blockly.BlockSvg.DISTANCE_45_OUTSIDE-1)+","+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE);Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL="a "+(Blockly.BlockSvg.CORNER_RADIUS+1)+","+(Blockly.BlockSvg.CORNER_RADIUS+1)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS+1)+","+(Blockly.BlockSvg.CORNER_RADIUS+1);
-Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR="a "+(Blockly.BlockSvg.CORNER_RADIUS+1)+","+(Blockly.BlockSvg.CORNER_RADIUS+1)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)+","+(Blockly.BlockSvg.DISTANCE_45_OUTSIDE+1);Blockly.BlockSvg.prototype.dispose=function(){goog.dom.removeNode(this.svgGroup_);this.block_=this.svgPathDark_=this.svgPathLight_=this.svgPath_=this.svgGroup_=null};
-Blockly.BlockSvg.prototype.disposeUiEffect=function(){Blockly.playAudio("delete");var a=Blockly.getSvgXY_(this.svgGroup_),b=this.svgGroup_.cloneNode(!0);b.translateX_=a.x;b.translateY_=a.y;b.setAttribute("transform","translate("+b.translateX_+","+b.translateY_+")");Blockly.svg.appendChild(b);b.bBox_=b.getBBox();b.startDate_=new Date;Blockly.BlockSvg.disposeUiStep_(b)};
-Blockly.BlockSvg.disposeUiStep_=function(a){var b=(new Date-a.startDate_)/150;1<b?goog.dom.removeNode(a):(a.setAttribute("transform","translate("+(a.translateX_+(Blockly.RTL?-1:1)*a.bBox_.width/2*b+", "+(a.translateY_+a.bBox_.height*b))+") scale("+(1-b)+")"),window.setTimeout(function(){Blockly.BlockSvg.disposeUiStep_(a)},10))};
-Blockly.BlockSvg.prototype.connectionUiEffect=function(){Blockly.playAudio("click");var a=Blockly.getSvgXY_(this.svgGroup_);this.block_.outputConnection?(a.x+=Blockly.RTL?3:-3,a.y+=13):this.block_.previousConnection&&(a.x+=Blockly.RTL?-23:23,a.y+=3);a=Blockly.createSvgElement("circle",{cx:a.x,cy:a.y,r:0,fill:"none",stroke:"#888","stroke-width":10},Blockly.svg);a.startDate_=new Date;Blockly.BlockSvg.connectionUiStep_(a)};
-Blockly.BlockSvg.connectionUiStep_=function(a){var b=(new Date-a.startDate_)/150;1<b?goog.dom.removeNode(a):(a.setAttribute("r",25*b),a.style.opacity=1-b,window.setTimeout(function(){Blockly.BlockSvg.connectionUiStep_(a)},10))};
-Blockly.BlockSvg.prototype.updateColour=function(){if(!this.block_.disabled){var a=Blockly.makeColour(this.block_.getColour()),b=goog.color.hexToRgb(a),c=goog.color.lighten(b,.3),b=goog.color.darken(b,.4);this.svgPathLight_.setAttribute("stroke",goog.color.rgbArrayToHex(c));this.svgPathDark_.setAttribute("fill",goog.color.rgbArrayToHex(b));this.svgPath_.setAttribute("fill",a)}};
-Blockly.BlockSvg.prototype.updateDisabled=function(){this.block_.disabled||this.block_.getInheritedDisabled()?(Blockly.addClass_(this.svgGroup_,"blocklyDisabled"),this.svgPath_.setAttribute("fill","url(#blocklyDisabledPattern)")):(Blockly.removeClass_(this.svgGroup_,"blocklyDisabled"),this.updateColour());for(var a=this.block_.getChildren(),b=0,c;c=a[b];b++)c.svg_.updateDisabled()};Blockly.BlockSvg.prototype.addSelect=function(){Blockly.addClass_(this.svgGroup_,"blocklySelected");this.svgGroup_.parentNode.appendChild(this.svgGroup_)};
-Blockly.BlockSvg.prototype.removeSelect=function(){Blockly.removeClass_(this.svgGroup_,"blocklySelected")};Blockly.BlockSvg.prototype.addDragging=function(){Blockly.addClass_(this.svgGroup_,"blocklyDragging")};Blockly.BlockSvg.prototype.removeDragging=function(){Blockly.removeClass_(this.svgGroup_,"blocklyDragging")};
-Blockly.BlockSvg.prototype.render=function(){this.block_.rendered=!0;var a=Blockly.BlockSvg.SEP_SPACE_X;Blockly.RTL&&(a=-a);for(var b=this.block_.getIcons(),c=0;c<b.length;c++)a=b[c].renderIcon(a);a+=Blockly.RTL?Blockly.BlockSvg.SEP_SPACE_X:-Blockly.BlockSvg.SEP_SPACE_X;b=this.renderCompute_(a);this.renderDraw_(a,b);(a=this.block_.getParent())?a.render():Blockly.fireUiEvent(window,"resize")};
-Blockly.BlockSvg.prototype.renderFields_=function(a,b,c){Blockly.RTL&&(b=-b);for(var d=0,e;e=a[d];d++)Blockly.RTL?(b-=e.renderSep+e.renderWidth,e.getRootElement().setAttribute("transform","translate("+b+", "+c+")"),e.renderWidth&&(b-=Blockly.BlockSvg.SEP_SPACE_X)):(e.getRootElement().setAttribute("transform","translate("+(b+e.renderSep)+", "+c+")"),e.renderWidth&&(b+=e.renderSep+e.renderWidth+Blockly.BlockSvg.SEP_SPACE_X));return Blockly.RTL?-b:b};
-Blockly.BlockSvg.prototype.renderCompute_=function(a){var b=this.block_.inputList,c=[];c.rightEdge=a+2*Blockly.BlockSvg.SEP_SPACE_X;if(this.block_.previousConnection||this.block_.nextConnection)c.rightEdge=Math.max(c.rightEdge,Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.SEP_SPACE_X);for(var d=0,e=0,f=!1,g=!1,h=!1,k=void 0,l=this.block_.inputsInline&&!this.block_.isCollapsed(),p=0,n;n=b[p];p++)if(n.isVisible()){var q;l&&k&&k!=Blockly.NEXT_STATEMENT&&n.type!=Blockly.NEXT_STATEMENT?q=c[c.length-1]:
-(k=n.type,q=[],q.type=l&&n.type!=Blockly.NEXT_STATEMENT?Blockly.BlockSvg.INLINE:n.type,q.height=0,c.push(q));q.push(n);n.renderHeight=Blockly.BlockSvg.MIN_BLOCK_Y;n.renderWidth=l&&n.type==Blockly.INPUT_VALUE?Blockly.BlockSvg.TAB_WIDTH+1.25*Blockly.BlockSvg.SEP_SPACE_X:0;if(n.connection&&n.connection.targetConnection){var m=n.connection.targetBlock().getHeightWidth();n.renderHeight=Math.max(n.renderHeight,m.height);n.renderWidth=Math.max(n.renderWidth,m.width)}p==b.length-1&&n.renderHeight--;q.height=
-Math.max(q.height,n.renderHeight);n.fieldWidth=0;1==c.length&&(n.fieldWidth+=Blockly.RTL?-a:a);for(var m=!1,r=0,t;t=n.fieldRow[r];r++){0!=r&&(n.fieldWidth+=Blockly.BlockSvg.SEP_SPACE_X);var u=t.getSize();t.renderWidth=u.width;t.renderSep=m&&t.EDITABLE?Blockly.BlockSvg.SEP_SPACE_X:0;n.fieldWidth+=t.renderWidth+t.renderSep;q.height=Math.max(q.height,u.height);m=t.EDITABLE}q.type!=Blockly.BlockSvg.INLINE&&(q.type==Blockly.NEXT_STATEMENT?(g=!0,e=Math.max(e,n.fieldWidth)):(q.type==Blockly.INPUT_VALUE?
-f=!0:q.type==Blockly.DUMMY_INPUT&&(h=!0),d=Math.max(d,n.fieldWidth)))}for(a=0;q=c[a];a++)if(q.thicker=!1,q.type==Blockly.BlockSvg.INLINE)for(b=0;n=q[b];b++)if(n.type==Blockly.INPUT_VALUE){q.height+=2*Blockly.BlockSvg.INLINE_PADDING_Y;q.thicker=!0;break}c.statementEdge=2*Blockly.BlockSvg.SEP_SPACE_X+e;g&&(c.rightEdge=Math.max(c.rightEdge,c.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH));f?c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X+Blockly.BlockSvg.TAB_WIDTH):h&&(c.rightEdge=Math.max(c.rightEdge,
-d+2*Blockly.BlockSvg.SEP_SPACE_X));c.hasValue=f;c.hasStatement=g;c.hasDummy=h;return c};
-Blockly.BlockSvg.prototype.renderDraw_=function(a,b){if(this.block_.outputConnection)this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!0;else{this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!1;if(this.block_.previousConnection){var c=this.block_.previousConnection.targetBlock();c&&c.getNextBlock()==this.block_&&(this.squareTopLeftCorner_=!0)}this.block_.getNextBlock()&&(this.squareBottomLeftCorner_=!0)}var d=this.block_.getRelativeToSurfaceXY(),e=[],f=[],c=[],g=[];this.renderDrawTop_(e,
-c,d,b.rightEdge);var h=this.renderDrawRight_(e,c,f,g,d,b,a);this.renderDrawBottom_(e,c,d,h);this.renderDrawLeft_(e,c,d,h);d=e.join(" ")+"\n"+f.join(" ");this.svgPath_.setAttribute("d",d);this.svgPathDark_.setAttribute("d",d);d=c.join(" ")+"\n"+g.join(" ");this.svgPathLight_.setAttribute("d",d);Blockly.RTL&&(this.svgPath_.setAttribute("transform","scale(-1 1)"),this.svgPathLight_.setAttribute("transform","scale(-1 1)"),this.svgPathDark_.setAttribute("transform","translate(1,1) scale(-1 1)"))};
-Blockly.BlockSvg.prototype.renderDrawTop_=function(a,b,c,d){this.squareTopLeftCorner_?(a.push("m 0,0"),b.push("m 1,1")):(a.push(Blockly.BlockSvg.TOP_LEFT_CORNER_START),b.push(Blockly.RTL?Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_RTL:Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_LTR),a.push(Blockly.BlockSvg.TOP_LEFT_CORNER),b.push(Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT));this.block_.previousConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH-15),b.push("H",Blockly.BlockSvg.NOTCH_WIDTH-
-15),a.push(Blockly.BlockSvg.NOTCH_PATH_LEFT),b.push(Blockly.BlockSvg.NOTCH_PATH_LEFT_HIGHLIGHT),this.block_.previousConnection.moveTo(c.x+(Blockly.RTL?-Blockly.BlockSvg.NOTCH_WIDTH:Blockly.BlockSvg.NOTCH_WIDTH),c.y));a.push("H",d);b.push("H",d+(Blockly.RTL?-1:0));this.width=d};
-Blockly.BlockSvg.prototype.renderDrawRight_=function(a,b,c,d,e,f,g){for(var h,k=0,l,p,n=0,q;q=f[n];n++){h=Blockly.BlockSvg.SEP_SPACE_X;0==n&&(h+=Blockly.RTL?-g:g);b.push("M",f.rightEdge-1+","+(k+1));if(this.block_.isCollapsed()){var m=q[0];l=k+Blockly.BlockSvg.FIELD_HEIGHT;this.renderFields_(m.fieldRow,h,l);a.push(Blockly.BlockSvg.JAGGED_TEETH);Blockly.RTL?b.push("l 8,0 0,3.8 7,3.2 m -14.5,9 l 8,4"):b.push("h 8");m=q.height-Blockly.BlockSvg.JAGGED_TEETH_HEIGHT;a.push("v",m);Blockly.RTL&&b.push("v",
-m-2);this.width+=Blockly.BlockSvg.JAGGED_TEETH_WIDTH}else if(q.type==Blockly.BlockSvg.INLINE){for(var r=0;m=q[r];r++)l=k+Blockly.BlockSvg.FIELD_HEIGHT,q.thicker&&(l+=Blockly.BlockSvg.INLINE_PADDING_Y),h=this.renderFields_(m.fieldRow,h,l),m.type!=Blockly.DUMMY_INPUT&&(h+=m.renderWidth+Blockly.BlockSvg.SEP_SPACE_X),m.type==Blockly.INPUT_VALUE&&(c.push("M",h-Blockly.BlockSvg.SEP_SPACE_X+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y)),c.push("h",Blockly.BlockSvg.TAB_WIDTH-2-m.renderWidth),c.push(Blockly.BlockSvg.TAB_PATH_DOWN),
-c.push("v",m.renderHeight+1-Blockly.BlockSvg.TAB_HEIGHT),c.push("h",m.renderWidth+2-Blockly.BlockSvg.TAB_WIDTH),c.push("z"),Blockly.RTL?(d.push("M",h-Blockly.BlockSvg.SEP_SPACE_X-3+Blockly.BlockSvg.TAB_WIDTH-m.renderWidth+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y+1)),d.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),d.push("v",m.renderHeight-Blockly.BlockSvg.TAB_HEIGHT+3),d.push("h",m.renderWidth-Blockly.BlockSvg.TAB_WIDTH+1)):(d.push("M",h-Blockly.BlockSvg.SEP_SPACE_X+1+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y+
-1)),d.push("v",m.renderHeight+1),d.push("h",Blockly.BlockSvg.TAB_WIDTH-2-m.renderWidth),d.push("M",h-m.renderWidth-Blockly.BlockSvg.SEP_SPACE_X+1.8+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y+Blockly.BlockSvg.TAB_HEIGHT-.4)),d.push("l",.38*Blockly.BlockSvg.TAB_WIDTH+",-1.8")),l=Blockly.RTL?e.x-h-Blockly.BlockSvg.TAB_WIDTH+Blockly.BlockSvg.SEP_SPACE_X+m.renderWidth+1:e.x+h+Blockly.BlockSvg.TAB_WIDTH-Blockly.BlockSvg.SEP_SPACE_X-m.renderWidth-1,p=e.y+k+Blockly.BlockSvg.INLINE_PADDING_Y+1,m.connection.moveTo(l,
-p),m.connection.targetConnection&&m.connection.tighten_());h=Math.max(h,f.rightEdge);this.width=Math.max(this.width,h);a.push("H",h);b.push("H",h+(Blockly.RTL?-1:0));a.push("v",q.height);Blockly.RTL&&b.push("v",q.height-2)}else q.type==Blockly.INPUT_VALUE?(m=q[0],l=k+Blockly.BlockSvg.FIELD_HEIGHT,m.align!=Blockly.ALIGN_LEFT&&(r=f.rightEdge-m.fieldWidth-Blockly.BlockSvg.TAB_WIDTH-2*Blockly.BlockSvg.SEP_SPACE_X,m.align==Blockly.ALIGN_RIGHT?h+=r:m.align==Blockly.ALIGN_CENTRE&&(h+=(r+h)/2)),this.renderFields_(m.fieldRow,
-h,l),a.push(Blockly.BlockSvg.TAB_PATH_DOWN),r=q.height-Blockly.BlockSvg.TAB_HEIGHT,a.push("v",r),Blockly.RTL?(b.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),b.push("v",r)):(b.push("M",f.rightEdge-4.2+","+(k+Blockly.BlockSvg.TAB_HEIGHT-.4)),b.push("l",.38*Blockly.BlockSvg.TAB_WIDTH+",-1.8")),l=e.x+(Blockly.RTL?-f.rightEdge-1:f.rightEdge+1),p=e.y+k,m.connection.moveTo(l,p),m.connection.targetConnection&&(m.connection.tighten_(),this.width=Math.max(this.width,f.rightEdge+m.connection.targetBlock().getHeightWidth().width-
-Blockly.BlockSvg.TAB_WIDTH+1))):q.type==Blockly.DUMMY_INPUT?(m=q[0],l=k+Blockly.BlockSvg.FIELD_HEIGHT,m.align!=Blockly.ALIGN_LEFT&&(r=f.rightEdge-m.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,f.hasValue&&(r-=Blockly.BlockSvg.TAB_WIDTH),m.align==Blockly.ALIGN_RIGHT?h+=r:m.align==Blockly.ALIGN_CENTRE&&(h+=(r+h)/2)),this.renderFields_(m.fieldRow,h,l),a.push("v",q.height),Blockly.RTL&&b.push("v",q.height-2)):q.type==Blockly.NEXT_STATEMENT&&(m=q[0],0==n&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),Blockly.RTL&&
-b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),k+=Blockly.BlockSvg.SEP_SPACE_Y),l=k+Blockly.BlockSvg.FIELD_HEIGHT,m.align!=Blockly.ALIGN_LEFT&&(r=f.statementEdge-m.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,m.align==Blockly.ALIGN_RIGHT?h+=r:m.align==Blockly.ALIGN_CENTRE&&(h+=(r+h)/2)),this.renderFields_(m.fieldRow,h,l),h=f.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH,a.push("H",h),a.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER),a.push("v",q.height-2*Blockly.BlockSvg.CORNER_RADIUS),a.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER),
-a.push("H",f.rightEdge),Blockly.RTL?(b.push("M",h-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(k+Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),b.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL),b.push("v",q.height-2*Blockly.BlockSvg.CORNER_RADIUS),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL),b.push("H",f.rightEdge-1)):(b.push("M",h-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(k+q.height-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),
-b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR),b.push("H",f.rightEdge)),l=e.x+(Blockly.RTL?-h:h),p=e.y+k+1,m.connection.moveTo(l,p),m.connection.targetConnection&&(m.connection.tighten_(),this.width=Math.max(this.width,f.statementEdge+m.connection.targetBlock().getHeightWidth().width)),n==f.length-1||f[n+1].type==Blockly.NEXT_STATEMENT)&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),Blockly.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),k+=Blockly.BlockSvg.SEP_SPACE_Y);k+=q.height}f.length||
-(k=Blockly.BlockSvg.MIN_BLOCK_Y,a.push("V",k),Blockly.RTL&&b.push("V",k-1));return k};
-Blockly.BlockSvg.prototype.renderDrawBottom_=function(a,b,c,d){this.height=d+1;this.block_.nextConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH+" "+Blockly.BlockSvg.NOTCH_PATH_RIGHT),this.block_.nextConnection.moveTo(Blockly.RTL?c.x-Blockly.BlockSvg.NOTCH_WIDTH:c.x+Blockly.BlockSvg.NOTCH_WIDTH,c.y+d+1),this.block_.nextConnection.targetConnection&&this.block_.nextConnection.tighten_(),this.height+=4);this.squareBottomLeftCorner_?(a.push("H 0"),Blockly.RTL||b.push("M","1,"+d)):(a.push("H",Blockly.BlockSvg.CORNER_RADIUS),
-a.push("a",Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,1 -"+Blockly.BlockSvg.CORNER_RADIUS+",-"+Blockly.BlockSvg.CORNER_RADIUS),Blockly.RTL||(b.push("M",Blockly.BlockSvg.DISTANCE_45_INSIDE+","+(d-Blockly.BlockSvg.DISTANCE_45_INSIDE)),b.push("A",Blockly.BlockSvg.CORNER_RADIUS-1+","+(Blockly.BlockSvg.CORNER_RADIUS-1)+" 0 0,1 1,"+(d-Blockly.BlockSvg.CORNER_RADIUS))))};
-Blockly.BlockSvg.prototype.renderDrawLeft_=function(a,b,c,d){this.block_.outputConnection?(this.block_.outputConnection.moveTo(c.x,c.y),a.push("V",Blockly.BlockSvg.TAB_HEIGHT),a.push("c 0,-10 -"+Blockly.BlockSvg.TAB_WIDTH+",8 -"+Blockly.BlockSvg.TAB_WIDTH+",-7.5 s "+Blockly.BlockSvg.TAB_WIDTH+",2.5 "+Blockly.BlockSvg.TAB_WIDTH+",-7.5"),Blockly.RTL?(b.push("M",-.3*Blockly.BlockSvg.TAB_WIDTH+",8.9"),b.push("l",-.45*Blockly.BlockSvg.TAB_WIDTH+",-2.1")):(b.push("V",Blockly.BlockSvg.TAB_HEIGHT-1),b.push("m",
--.92*Blockly.BlockSvg.TAB_WIDTH+",-1 q "+-.19*Blockly.BlockSvg.TAB_WIDTH+",-5.5 0,-11"),b.push("m",.92*Blockly.BlockSvg.TAB_WIDTH+",1 V 1 H 2")),this.width+=Blockly.BlockSvg.TAB_WIDTH):Blockly.RTL||(this.squareTopLeftCorner_?b.push("V",1):b.push("V",Blockly.BlockSvg.CORNER_RADIUS));a.push("z")};
 // Copyright 2013 Google Inc.  Apache License 2.0
-Blockly.Blocks={};
+var Blockly={Blocks:{}};Blockly.Blocks.uidCounter_=0;Blockly.Blocks.genUid=function(){var a=(++Blockly.Blocks.uidCounter_).toString();return Blockly.Realtime.isEnabled()?Blockly.Realtime.genUid(a):a};
 Blockly.Blocks.addTemplate=function(a){goog.asserts.assert(a.blockName);goog.asserts.assert(Blockly.Blocks[a.blockName],"Blockly.Blocks already has a field named ",a.blockName);goog.asserts.assert(a.message);goog.asserts.assert(a.colour&&"number"==typeof a.colour&&0<=a.colour&&360>a.colour,"details.colour must be a number from 0 to 360 (exclusive)");"undefined"!=a.output&&(goog.asserts.assert(!a.previousStatement,"When details.output is defined, details.previousStatement must not be true."),goog.asserts.assert(!a.nextStatement,
 "When details.output is defined, details.nextStatement must not be true."));var b={init:function(){var b=this;this.setColour(a.colour);this.setHelpUrl(a.helpUrl);"string"==typeof a.tooltip?this.setTooltip(a.tooltip):"function"==typeof a.tooltip&&this.setTooltip(function(){return a.tooltip(b)});"undefined"!=a.output?this.setOutput(!0,a.output):(this.setPreviousStatement("undefined"==typeof a.previousStatement?!0:a.previousStatement),this.setNextStatement("undefined"==typeof a.nextStatement?!0:a.nextStatement));
 var d=[];d.push(a.text);a.args&&a.args.forEach(function(a){goog.asserts.assert(a.name);goog.asserts.assert("undefined"!=a.check);"undefined"==a.type||a.type==Blockly.INPUT_VALUE?d.push([a.name,a.check,"undefined"==typeof a.align?Blockly.ALIGN_RIGHT:a.align]):goog.asserts.fail("addTemplate() can only handle value inputs.")});d.push(Blockly.ALIGN_RIGHT);a.inline&&this.setInlineInputs(a.inline);Blockly.Block.prototype.interpolateMsg.apply(this,d)}};b.mutationToDom=a.switchable?function(){var b=a.mutationToDomFunc?
 a.mutatationToDomFunc():document.createElement("mutation");b.setAttribute("is_statement",this.isStatement||!1);return b}:a.mutationToDomFunc;Blockly.Blocks[a.blockName]=b};
+// Copyright 2012 Google Inc.  Apache License 2.0
+Blockly.Workspace=function(){this.topBlocks_=[]};Blockly.Workspace.prototype.rendered=!1;Blockly.Workspace.prototype.maxBlocks=Infinity;Blockly.Workspace.prototype.dispose=function(){this.clear()};Blockly.Workspace.SCAN_ANGLE=3;Blockly.Workspace.prototype.addTopBlock=function(a){this.topBlocks_.push(a);this.fireChangeEvent()};
+Blockly.Workspace.prototype.removeTopBlock=function(a){for(var b=!1,c,d=0;c=this.topBlocks_[d];d++)if(c==a){this.topBlocks_.splice(d,1);b=!0;break}if(!b)throw"Block not present in workspace's list of top-most blocks.";this.fireChangeEvent()};
+Blockly.Workspace.prototype.getTopBlocks=function(a){var b=[].concat(this.topBlocks_);if(a&&1<b.length){var c=Math.sin(goog.math.toRadians(Blockly.Workspace.SCAN_ANGLE));Blockly.RTL&&(c*=-1);b.sort(function(a,b){var f=a.getRelativeToSurfaceXY(),g=b.getRelativeToSurfaceXY();return f.y+c*f.x-(g.y+c*g.x)})}return b};Blockly.Workspace.prototype.getAllBlocks=function(){for(var a=this.getTopBlocks(!1),b=0;b<a.length;b++)a.push.apply(a,a[b].getChildren());return a};Blockly.Workspace.prototype.clear=function(){for(;this.topBlocks_.length;)this.topBlocks_[0].dispose()};
+Blockly.Workspace.prototype.getWidth=function(){return 0};Blockly.Workspace.prototype.getBlockById=function(a){for(var b=this.getAllBlocks(),c=0,d;d=b[c];c++)if(d.id==a)return d;return null};Blockly.Workspace.prototype.remainingCapacity=function(){return Infinity==this.maxBlocks?Infinity:this.maxBlocks-this.getAllBlocks().length};Blockly.Workspace.prototype.fireChangeEvent=function(){};
+// Copyright 2012 Google Inc.  Apache License 2.0
+Blockly.Bubble=function(a,b,c,d,e,f,g){var h=Blockly.Bubble.ARROW_ANGLE;Blockly.RTL&&(h=-h);this.arrow_radians_=goog.math.toRadians(h);this.workspace_=a;this.content_=b;this.shape_=c;a.getBubbleCanvas().appendChild(this.createDom_(b,!(!f||!g)));this.setAnchorLocation(d,e);f&&g||(a=this.content_.getBBox(),f=a.width+2*Blockly.Bubble.BORDER_WIDTH,g=a.height+2*Blockly.Bubble.BORDER_WIDTH);this.setBubbleSize(f,g);this.positionBubble_();this.renderArrow_();this.rendered_=!0;Blockly.readOnly||(Blockly.bindEvent_(this.bubbleBack_,
+"mousedown",this,this.bubbleMouseDown_),this.resizeGroup_&&Blockly.bindEvent_(this.resizeGroup_,"mousedown",this,this.resizeMouseDown_))};Blockly.Bubble.BORDER_WIDTH=6;Blockly.Bubble.ARROW_THICKNESS=10;Blockly.Bubble.ARROW_ANGLE=20;Blockly.Bubble.ARROW_BEND=4;Blockly.Bubble.ANCHOR_RADIUS=8;Blockly.Bubble.onMouseUpWrapper_=null;Blockly.Bubble.onMouseMoveWrapper_=null;
+Blockly.Bubble.unbindDragEvents_=function(){Blockly.Bubble.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Bubble.onMouseUpWrapper_),Blockly.Bubble.onMouseUpWrapper_=null);Blockly.Bubble.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.Bubble.onMouseMoveWrapper_),Blockly.Bubble.onMouseMoveWrapper_=null)};Blockly.Bubble.prototype.rendered_=!1;Blockly.Bubble.prototype.anchorX_=0;Blockly.Bubble.prototype.anchorY_=0;Blockly.Bubble.prototype.relativeLeft_=0;Blockly.Bubble.prototype.relativeTop_=0;
+Blockly.Bubble.prototype.width_=0;Blockly.Bubble.prototype.height_=0;Blockly.Bubble.prototype.autoLayout_=!0;
+Blockly.Bubble.prototype.createDom_=function(a,b){this.bubbleGroup_=Blockly.createSvgElement("g",{},null);var c=Blockly.createSvgElement("g",{filter:"url(#blocklyEmboss)"},this.bubbleGroup_);this.bubbleArrow_=Blockly.createSvgElement("path",{},c);this.bubbleBack_=Blockly.createSvgElement("rect",{"class":"blocklyDraggable",x:0,y:0,rx:Blockly.Bubble.BORDER_WIDTH,ry:Blockly.Bubble.BORDER_WIDTH},c);b?(this.resizeGroup_=Blockly.createSvgElement("g",{"class":Blockly.RTL?"blocklyResizeSW":"blocklyResizeSE"},
+this.bubbleGroup_),c=2*Blockly.Bubble.BORDER_WIDTH,Blockly.createSvgElement("polygon",{points:"0,x x,x x,0".replace(/x/g,c.toString())},this.resizeGroup_),Blockly.createSvgElement("line",{"class":"blocklyResizeLine",x1:c/3,y1:c-1,x2:c-1,y2:c/3},this.resizeGroup_),Blockly.createSvgElement("line",{"class":"blocklyResizeLine",x1:2*c/3,y1:c-1,x2:c-1,y2:2*c/3},this.resizeGroup_)):this.resizeGroup_=null;this.bubbleGroup_.appendChild(a);return this.bubbleGroup_};
+Blockly.Bubble.prototype.bubbleMouseDown_=function(a){this.promote_();Blockly.Bubble.unbindDragEvents_();Blockly.isRightButton(a)||Blockly.isTargetInput_(a)||(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),this.dragDeltaX=Blockly.RTL?this.relativeLeft_+a.clientX:this.relativeLeft_-a.clientX,this.dragDeltaY=this.relativeTop_-a.clientY,Blockly.Bubble.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Bubble.unbindDragEvents_),Blockly.Bubble.onMouseMoveWrapper_=Blockly.bindEvent_(document,
+"mousemove",this,this.bubbleMouseMove_),Blockly.hideChaff(),a.stopPropagation())};Blockly.Bubble.prototype.bubbleMouseMove_=function(a){this.autoLayout_=!1;this.relativeLeft_=Blockly.RTL?this.dragDeltaX-a.clientX:this.dragDeltaX+a.clientX;this.relativeTop_=this.dragDeltaY+a.clientY;this.positionBubble_();this.renderArrow_()};
+Blockly.Bubble.prototype.resizeMouseDown_=function(a){this.promote_();Blockly.Bubble.unbindDragEvents_();Blockly.isRightButton(a)||(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),this.resizeDeltaWidth=Blockly.RTL?this.width_+a.clientX:this.width_-a.clientX,this.resizeDeltaHeight=this.height_-a.clientY,Blockly.Bubble.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Bubble.unbindDragEvents_),Blockly.Bubble.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.resizeMouseMove_),
+Blockly.hideChaff(),a.stopPropagation())};Blockly.Bubble.prototype.resizeMouseMove_=function(a){this.autoLayout_=!1;var b=this.resizeDeltaWidth,c=this.resizeDeltaHeight+a.clientY,b=Blockly.RTL?b-a.clientX:b+a.clientX;this.setBubbleSize(b,c);Blockly.RTL&&this.positionBubble_()};Blockly.Bubble.prototype.registerResizeEvent=function(a,b){Blockly.bindEvent_(this.bubbleGroup_,"resize",a,b)};Blockly.Bubble.prototype.promote_=function(){this.bubbleGroup_.parentNode.appendChild(this.bubbleGroup_)};
+Blockly.Bubble.prototype.setAnchorLocation=function(a,b){this.anchorX_=a;this.anchorY_=b;this.rendered_&&this.positionBubble_()};
+Blockly.Bubble.prototype.layoutBubble_=function(){var a=-this.width_/4,b=-this.height_-Blockly.BlockSvg.MIN_BLOCK_Y,c=this.workspace_.getMetrics();Blockly.RTL?this.anchorX_-c.viewLeft-a-this.width_<Blockly.Scrollbar.scrollbarThickness?a=this.anchorX_-c.viewLeft-this.width_-Blockly.Scrollbar.scrollbarThickness:this.anchorX_-c.viewLeft-a>c.viewWidth&&(a=this.anchorX_-c.viewLeft-c.viewWidth):this.anchorX_+a<c.viewLeft?a=c.viewLeft-this.anchorX_:c.viewLeft+c.viewWidth<this.anchorX_+a+this.width_+Blockly.BlockSvg.SEP_SPACE_X+
+Blockly.Scrollbar.scrollbarThickness&&(a=c.viewLeft+c.viewWidth-this.anchorX_-this.width_-Blockly.Scrollbar.scrollbarThickness);this.anchorY_+b<c.viewTop&&(b=this.shape_.getBBox().height);this.relativeLeft_=a;this.relativeTop_=b};Blockly.Bubble.prototype.positionBubble_=function(){this.bubbleGroup_.setAttribute("transform","translate("+(Blockly.RTL?this.anchorX_-this.relativeLeft_-this.width_:this.anchorX_+this.relativeLeft_)+", "+(this.relativeTop_+this.anchorY_)+")")};
+Blockly.Bubble.prototype.getBubbleSize=function(){return{width:this.width_,height:this.height_}};
+Blockly.Bubble.prototype.setBubbleSize=function(a,b){var c=2*Blockly.Bubble.BORDER_WIDTH;a=Math.max(a,c+45);b=Math.max(b,c+Blockly.BlockSvg.FIELD_HEIGHT);this.width_=a;this.height_=b;this.bubbleBack_.setAttribute("width",a);this.bubbleBack_.setAttribute("height",b);this.resizeGroup_&&(Blockly.RTL?this.resizeGroup_.setAttribute("transform","translate("+2*Blockly.Bubble.BORDER_WIDTH+", "+(b-c)+") scale(-1 1)"):this.resizeGroup_.setAttribute("transform","translate("+(a-c)+", "+(b-c)+")"));this.rendered_&&
+(this.autoLayout_&&this.layoutBubble_(),this.positionBubble_(),this.renderArrow_());Blockly.fireUiEvent(this.bubbleGroup_,"resize")};
+Blockly.Bubble.prototype.renderArrow_=function(){var a=[],b=this.width_/2,c=this.height_/2,d=-this.relativeLeft_,e=-this.relativeTop_;if(b==d&&c==e)a.push("M "+b+","+c);else{e-=c;d-=b;Blockly.RTL&&(d*=-1);var f=Math.sqrt(e*e+d*d),g=Math.acos(d/f);0>e&&(g=2*Math.PI-g);var h=g+Math.PI/2;h>2*Math.PI&&(h-=2*Math.PI);var k=Math.sin(h),l=Math.cos(h),p=this.getBubbleSize(),h=(p.width+p.height)/Blockly.Bubble.ARROW_THICKNESS,h=Math.min(h,p.width,p.height)/2,p=1-Blockly.Bubble.ANCHOR_RADIUS/f,d=b+p*d,e=c+
+p*e,p=b+h*l,n=c+h*k,b=b-h*l,c=c-h*k,k=g+this.arrow_radians_;k>2*Math.PI&&(k-=2*Math.PI);g=Math.sin(k)*f/Blockly.Bubble.ARROW_BEND;f=Math.cos(k)*f/Blockly.Bubble.ARROW_BEND;a.push("M"+p+","+n);a.push("C"+(p+f)+","+(n+g)+" "+d+","+e+" "+d+","+e);a.push("C"+d+","+e+" "+(b+f)+","+(c+g)+" "+b+","+c)}a.push("z");this.bubbleArrow_.setAttribute("d",a.join(" "))};Blockly.Bubble.prototype.setColour=function(a){this.bubbleBack_.setAttribute("fill",a);this.bubbleArrow_.setAttribute("fill",a)};
+Blockly.Bubble.prototype.dispose=function(){Blockly.Bubble.unbindDragEvents_();goog.dom.removeNode(this.bubbleGroup_);this.shape_=this.content_=this.workspace_=this.bubbleGroup_=null};
+// Copyright 2013 Google Inc.  Apache License 2.0
+Blockly.Icon=function(a){this.block_=a};Blockly.Icon.RADIUS=8;Blockly.Icon.prototype.bubble_=null;Blockly.Icon.prototype.iconX_=0;Blockly.Icon.prototype.iconY_=0;Blockly.Icon.prototype.createIcon_=function(){this.iconGroup_||(this.iconGroup_=Blockly.createSvgElement("g",{},null),this.block_.getSvgRoot().appendChild(this.iconGroup_),Blockly.bindEvent_(this.iconGroup_,"mouseup",this,this.iconClick_),this.updateEditable())};
+Blockly.Icon.prototype.dispose=function(){goog.dom.removeNode(this.iconGroup_);this.iconGroup_=null;this.setVisible(!1);this.block_=null};Blockly.Icon.prototype.updateEditable=function(){this.block_.isInFlyout?Blockly.removeClass_(this.iconGroup_,"blocklyIconGroup"):Blockly.addClass_(this.iconGroup_,"blocklyIconGroup")};Blockly.Icon.prototype.isVisible=function(){return!!this.bubble_};Blockly.Icon.prototype.iconClick_=function(a){this.block_.isInFlyout||this.setVisible(!this.isVisible())};
+Blockly.Icon.prototype.updateColour=function(){if(this.isVisible()){var a=Blockly.makeColour(this.block_.getColour());this.bubble_.setColour(a)}};
+Blockly.Icon.prototype.renderIcon=function(a){if(this.block_.isCollapsed())return this.iconGroup_.setAttribute("display","none"),a;this.iconGroup_.setAttribute("display","block");var b=2*Blockly.Icon.RADIUS;Blockly.RTL&&(a-=b);this.iconGroup_.setAttribute("transform","translate("+a+", 5)");this.computeIconLocation();return a=Blockly.RTL?a-Blockly.BlockSvg.SEP_SPACE_X:a+(b+Blockly.BlockSvg.SEP_SPACE_X)};
+Blockly.Icon.prototype.setIconLocation=function(a,b){this.iconX_=a;this.iconY_=b;this.isVisible()&&this.bubble_.setAnchorLocation(a,b)};Blockly.Icon.prototype.computeIconLocation=function(){var a=this.block_.getRelativeToSurfaceXY(),b=Blockly.getRelativeXY_(this.iconGroup_),c=a.x+b.x+Blockly.Icon.RADIUS,a=a.y+b.y+Blockly.Icon.RADIUS;c===this.iconX_&&a===this.iconY_||this.setIconLocation(c,a)};Blockly.Icon.prototype.getIconLocation=function(){return{x:this.iconX_,y:this.iconY_}};
+// Copyright 2011 Google Inc.  Apache License 2.0
+Blockly.Comment=function(a){Blockly.Comment.superClass_.constructor.call(this,a);this.createIcon_()};goog.inherits(Blockly.Comment,Blockly.Icon);Blockly.Comment.prototype.text_="";Blockly.Comment.prototype.width_=160;Blockly.Comment.prototype.height_=80;
+Blockly.Comment.prototype.createIcon_=function(){Blockly.Icon.prototype.createIcon_.call(this);Blockly.createSvgElement("circle",{"class":"blocklyIconShield",r:Blockly.Icon.RADIUS,cx:Blockly.Icon.RADIUS,cy:Blockly.Icon.RADIUS},this.iconGroup_);this.iconMark_=Blockly.createSvgElement("text",{"class":"blocklyIconMark",x:Blockly.Icon.RADIUS,y:2*Blockly.Icon.RADIUS-3},this.iconGroup_);this.iconMark_.appendChild(document.createTextNode("?"))};
+Blockly.Comment.prototype.createEditor_=function(){this.foreignObject_=Blockly.createSvgElement("foreignObject",{x:Blockly.Bubble.BORDER_WIDTH,y:Blockly.Bubble.BORDER_WIDTH},null);var a=document.createElementNS(Blockly.HTML_NS,"body");a.setAttribute("xmlns",Blockly.HTML_NS);a.className="blocklyMinimalBody";this.textarea_=document.createElementNS(Blockly.HTML_NS,"textarea");this.textarea_.className="blocklyCommentTextarea";this.textarea_.setAttribute("dir",Blockly.RTL?"RTL":"LTR");a.appendChild(this.textarea_);
+this.foreignObject_.appendChild(a);Blockly.bindEvent_(this.textarea_,"mouseup",this,this.textareaFocus_);return this.foreignObject_};Blockly.Comment.prototype.updateEditable=function(){this.isVisible()&&(this.setVisible(!1),this.setVisible(!0));Blockly.Icon.prototype.updateEditable.call(this)};
+Blockly.Comment.prototype.resizeBubble_=function(){var a=this.bubble_.getBubbleSize(),b=2*Blockly.Bubble.BORDER_WIDTH;this.foreignObject_.setAttribute("width",a.width-b);this.foreignObject_.setAttribute("height",a.height-b);this.textarea_.style.width=a.width-b-4+"px";this.textarea_.style.height=a.height-b-4+"px"};
+Blockly.Comment.prototype.setVisible=function(a){if(a!=this.isVisible())if(!this.block_.isEditable()&&!this.textarea_||goog.userAgent.IE)Blockly.Warning.prototype.setVisible.call(this,a);else{var b=this.getText(),c=this.getBubbleSize();a?(this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconX_,this.iconY_,this.width_,this.height_),this.bubble_.registerResizeEvent(this,this.resizeBubble_),this.updateColour(),this.text_=null):(this.bubble_.dispose(),
+this.foreignObject_=this.textarea_=this.bubble_=null);this.setText(b);this.setBubbleSize(c.width,c.height)}};Blockly.Comment.prototype.textareaFocus_=function(a){this.bubble_.promote_();this.textarea_.focus()};Blockly.Comment.prototype.getBubbleSize=function(){return this.isVisible()?this.bubble_.getBubbleSize():{width:this.width_,height:this.height_}};Blockly.Comment.prototype.setBubbleSize=function(a,b){this.textarea_?this.bubble_.setBubbleSize(a,b):(this.width_=a,this.height_=b)};
+Blockly.Comment.prototype.getText=function(){return this.textarea_?this.textarea_.value:this.text_};Blockly.Comment.prototype.setText=function(a){this.textarea_?this.textarea_.value=a:this.text_=a};Blockly.Comment.prototype.dispose=function(){this.block_.comment=null;Blockly.Icon.prototype.dispose.call(this)};
+// Copyright 2011 Google Inc.  Apache License 2.0
+Blockly.Connection=function(a,b){this.sourceBlock_=a;this.targetConnection=null;this.type=b;this.y_=this.x_=0;this.inDB_=!1;this.dbList_=this.sourceBlock_.workspace.connectionDBList};
+Blockly.Connection.prototype.dispose=function(){if(this.targetConnection)throw"Disconnect connection before disposing of it.";this.inDB_&&this.dbList_[this.type].removeConnection_(this);this.inDB_=!1;Blockly.highlightedConnection_==this&&(Blockly.highlightedConnection_=null);Blockly.localConnection_==this&&(Blockly.localConnection_=null)};Blockly.Connection.prototype.isSuperior=function(){return this.type==Blockly.INPUT_VALUE||this.type==Blockly.NEXT_STATEMENT};
+Blockly.Connection.prototype.connect=function(a){if(this.sourceBlock_==a.sourceBlock_)throw"Attempted to connect a block to itself.";if(this.sourceBlock_.workspace!==a.sourceBlock_.workspace)throw"Blocks are on different workspaces.";if(Blockly.OPPOSITE_TYPE[this.type]!=a.type)throw"Attempt to connect incompatible types.";if(this.type==Blockly.INPUT_VALUE||this.type==Blockly.OUTPUT_VALUE){if(this.targetConnection)throw"Source connection already connected (value).";if(a.targetConnection){var b=a.targetBlock();
+b.setParent(null);if(!b.outputConnection)throw"Orphan block does not have an output connection.";for(var c=this.sourceBlock_;c=Blockly.Connection.singleConnection_(c,b);)if(c.targetBlock())c=c.targetBlock();else{c.connect(b.outputConnection);b=null;break}b&&window.setTimeout(function(){b.outputConnection.bumpAwayFrom_(a)},Blockly.BUMP_DELAY)}}else{if(this.targetConnection)throw"Source connection already connected (block).";if(a.targetConnection){if(this.type!=Blockly.PREVIOUS_STATEMENT)throw"Can only do a mid-stack connection with the top of a block.";
+b=a.targetBlock();b.setParent(null);if(!b.previousConnection)throw"Orphan block does not have a previous connection.";for(c=this.sourceBlock_;c.nextConnection;)if(c.nextConnection.targetConnection)c=c.getNextBlock();else{b.previousConnection.checkType_(c.nextConnection)&&(c.nextConnection.connect(b.previousConnection),b=null);break}b&&window.setTimeout(function(){b.previousConnection.bumpAwayFrom_(a)},Blockly.BUMP_DELAY)}}var d;this.isSuperior()?(c=this.sourceBlock_,d=a.sourceBlock_):(c=a.sourceBlock_,
+d=this.sourceBlock_);this.targetConnection=a;a.targetConnection=this;d.setParent(c);c.rendered&&c.updateDisabled();d.rendered&&d.updateDisabled();c.rendered&&d.rendered&&(this.type==Blockly.NEXT_STATEMENT||this.type==Blockly.PREVIOUS_STATEMENT?d.render():c.render())};Blockly.Connection.singleConnection_=function(a,b){for(var c=!1,d=0;d<a.inputList.length;d++){var e=a.inputList[d].connection;if(e&&e.type==Blockly.INPUT_VALUE&&b.outputConnection.checkType_(e)){if(c)return null;c=e}}return c};
+Blockly.Connection.prototype.disconnect=function(){var a=this.targetConnection;if(!a)throw"Source connection not connected.";if(a.targetConnection!=this)throw"Target connection not connected to source connection.";this.targetConnection=a.targetConnection=null;var b;this.isSuperior()?(b=this.sourceBlock_,a=a.sourceBlock_):(b=a.sourceBlock_,a=this.sourceBlock_);b.rendered&&b.render();a.rendered&&(a.updateDisabled(),a.render())};
+Blockly.Connection.prototype.targetBlock=function(){return this.targetConnection?this.targetConnection.sourceBlock_:null};
+Blockly.Connection.prototype.bumpAwayFrom_=function(a){if(0==Blockly.dragMode_){var b=this.sourceBlock_.getRootBlock();if(!b.isInFlyout){var c=!1;if(!b.isMovable()){b=a.sourceBlock_.getRootBlock();if(!b.isMovable())return;a=this;c=!0}b.getSvgRoot().parentNode.appendChild(b.getSvgRoot());var d=a.x_+Blockly.SNAP_RADIUS-this.x_;a=a.y_+Blockly.SNAP_RADIUS-this.y_;c&&(a=-a);Blockly.RTL&&(d=-d);b.moveBy(d,a)}}};
+Blockly.Connection.prototype.moveTo=function(a,b){this.inDB_&&this.dbList_[this.type].removeConnection_(this);this.x_=a;this.y_=b;this.dbList_[this.type].addConnection_(this)};Blockly.Connection.prototype.moveBy=function(a,b){this.moveTo(this.x_+a,this.y_+b)};
+Blockly.Connection.prototype.highlight=function(){var a;this.type==Blockly.INPUT_VALUE||this.type==Blockly.OUTPUT_VALUE?(a=Blockly.RTL?-Blockly.BlockSvg.TAB_WIDTH:Blockly.BlockSvg.TAB_WIDTH,a="m 0,0 v 5 c 0,10 "+-a+",-8 "+-a+",7.5 s "+a+",-2.5 "+a+",7.5 v 5"):a=Blockly.RTL?"m 20,0 h -5 "+Blockly.BlockSvg.NOTCH_PATH_RIGHT+" h -5":"m -20,0 h 5 "+Blockly.BlockSvg.NOTCH_PATH_LEFT+" h 5";var b=this.sourceBlock_.getRelativeToSurfaceXY();Blockly.Connection.highlightedPath_=Blockly.createSvgElement("path",
+{"class":"blocklyHighlightedConnectionPath",d:a,transform:"translate("+(this.x_-b.x)+", "+(this.y_-b.y)+")"},this.sourceBlock_.getSvgRoot())};Blockly.Connection.prototype.unhighlight=function(){goog.dom.removeNode(Blockly.Connection.highlightedPath_);delete Blockly.Connection.highlightedPath_};
+Blockly.Connection.prototype.tighten_=function(){var a=Math.round(this.targetConnection.x_-this.x_),b=Math.round(this.targetConnection.y_-this.y_);if(0!=a||0!=b){var c=this.targetBlock(),d=c.getSvgRoot();if(!d)throw"block is not rendered.";d=Blockly.getRelativeXY_(d);c.getSvgRoot().setAttribute("transform","translate("+(d.x-a)+", "+(d.y-b)+")");c.moveConnections_(-a,-b)}};
+Blockly.Connection.prototype.closest=function(a,b,c){function d(b){var c=e[b];if((c.type==Blockly.OUTPUT_VALUE||c.type==Blockly.PREVIOUS_STATEMENT)&&c.targetConnection||c.type==Blockly.INPUT_VALUE&&c.targetConnection&&!c.targetBlock().isMovable()||!p.checkType_(c))return!0;c=c.sourceBlock_;do{if(l==c)return!0;c=c.getParent()}while(c);var d=f-e[b].x_,c=g-e[b].y_,d=Math.sqrt(d*d+c*c);d<=a&&(k=e[b],a=d);return c<a}if(this.targetConnection)return{connection:null,radius:a};var e=this.dbList_[Blockly.OPPOSITE_TYPE[this.type]],
+f=this.x_+b,g=this.y_+c;b=0;for(var h=c=e.length-2;b<h;)e[h].y_<g?b=h:c=h,h=Math.floor((b+c)/2);c=b=h;var k=null,l=this.sourceBlock_,p=this;if(e.length){for(;0<=b&&d(b);)b--;do c++;while(c<e.length&&d(c))}return{connection:k,radius:a}};Blockly.Connection.prototype.checkType_=function(a){if(!this.check_||!a.check_)return!0;for(var b=0;b<this.check_.length;b++)if(-1!=a.check_.indexOf(this.check_[b]))return!0;return!1};
+Blockly.Connection.prototype.setCheck=function(a){a?(goog.isArray(a)||(a=[a]),this.check_=a,this.targetConnection&&!this.checkType_(this.targetConnection)&&(this.isSuperior()?this.targetBlock().setParent(null):this.sourceBlock_.setParent(null),this.sourceBlock_.bumpNeighbours_())):this.check_=null;return this};
+Blockly.Connection.prototype.neighbours_=function(a){function b(b){var f=d-c[b].x_,g=e-c[b].y_;Math.sqrt(f*f+g*g)<=a&&k.push(c[b]);return g<a}for(var c=this.dbList_[Blockly.OPPOSITE_TYPE[this.type]],d=this.x_,e=this.y_,f=0,g=c.length-2,h=g;f<h;)c[h].y_<e?f=h:g=h,h=Math.floor((f+g)/2);var g=f=h,k=[];if(c.length){for(;0<=f&&b(f);)f--;do g++;while(g<c.length&&b(g))}return k};
+Blockly.Connection.prototype.hideAll=function(){this.inDB_&&this.dbList_[this.type].removeConnection_(this);if(this.targetConnection)for(var a=this.targetBlock().getDescendants(),b=0;b<a.length;b++){for(var c=a[b],d=c.getConnections_(!0),e=0;e<d.length;e++){var f=d[e];f.inDB_&&this.dbList_[f.type].removeConnection_(f)}c=c.getIcons();for(d=0;d<c.length;d++)c[d].setVisible(!1)}};
+Blockly.Connection.prototype.unhideAll=function(){this.inDB_||this.dbList_[this.type].addConnection_(this);var a=[];if(this.type!=Blockly.INPUT_VALUE&&this.type!=Blockly.NEXT_STATEMENT)return a;var b=this.targetBlock();if(b){var c;b.isCollapsed()?(c=[],b.outputConnection&&c.push(b.outputConnection),b.nextConnection&&c.push(b.nextConnection),b.previousConnection&&c.push(b.previousConnection)):c=b.getConnections_(!0);for(var d=0;d<c.length;d++)a.push.apply(a,c[d].unhideAll());0==a.length&&(a[0]=b)}return a};
+Blockly.ConnectionDB=function(){};Blockly.ConnectionDB.prototype=[];Blockly.ConnectionDB.constructor=Blockly.ConnectionDB;Blockly.ConnectionDB.prototype.addConnection_=function(a){if(a.inDB_)throw"Connection already in database.";for(var b=0,c=this.length;b<c;){var d=Math.floor((b+c)/2);if(this[d].y_<a.y_)b=d+1;else if(this[d].y_>a.y_)c=d;else{b=d;break}}this.splice(b,0,a);a.inDB_=!0};
+Blockly.ConnectionDB.prototype.removeConnection_=function(a){if(!a.inDB_)throw"Connection not in database.";a.inDB_=!1;for(var b=0,c=this.length-2,d=c;b<d;)this[d].y_<a.y_?b=d:c=d,d=Math.floor((b+c)/2);for(c=b=d;0<=b&&this[b].y_==a.y_;){if(this[b]==a){this.splice(b,1);return}b--}do{if(this[c]==a){this.splice(c,1);return}c++}while(c<this.length&&this[c].y_==a.y_);throw"Unable to find connection in connectionDB.";};
+Blockly.ConnectionDB.init=function(a){var b=[];b[Blockly.INPUT_VALUE]=new Blockly.ConnectionDB;b[Blockly.OUTPUT_VALUE]=new Blockly.ConnectionDB;b[Blockly.NEXT_STATEMENT]=new Blockly.ConnectionDB;b[Blockly.PREVIOUS_STATEMENT]=new Blockly.ConnectionDB;a.connectionDBList=b};
+// Copyright 2012 Google Inc.  Apache License 2.0
+Blockly.Field=function(a){this.sourceBlock_=null;this.fieldGroup_=Blockly.createSvgElement("g",{},null);this.borderRect_=Blockly.createSvgElement("rect",{rx:4,ry:4,x:-Blockly.BlockSvg.SEP_SPACE_X/2,y:-12,height:16},this.fieldGroup_);this.textElement_=Blockly.createSvgElement("text",{"class":"blocklyText"},this.fieldGroup_);this.size_={height:25,width:0};this.setText(a)};Blockly.Field.prototype.visible_=!0;Blockly.Field.prototype.clone=function(){goog.asserts.fail("There should never be an instance of Field, only its derived classes.")};
+Blockly.Field.NBSP="\u00a0";Blockly.Field.prototype.EDITABLE=!0;Blockly.Field.prototype.init=function(a){this.sourceBlock_||(this.sourceBlock_=a,this.updateEditable(),a.getSvgRoot().appendChild(this.fieldGroup_),this.mouseUpWrapper_=Blockly.bindEvent_(this.fieldGroup_,"mouseup",this,this.onMouseUp_),this.setText(null))};
+Blockly.Field.prototype.dispose=function(){this.mouseUpWrapper_&&(Blockly.unbindEvent_(this.mouseUpWrapper_),this.mouseUpWrapper_=null);this.sourceBlock_=null;goog.dom.removeNode(this.fieldGroup_);this.borderRect_=this.textElement_=this.fieldGroup_=null};
+Blockly.Field.prototype.updateEditable=function(){this.EDITABLE&&(this.sourceBlock_.isEditable()?(Blockly.addClass_(this.fieldGroup_,"blocklyEditableText"),Blockly.removeClass_(this.fieldGroup_,"blocklyNoNEditableText"),this.fieldGroup_.style.cursor=this.CURSOR):(Blockly.addClass_(this.fieldGroup_,"blocklyNonEditableText"),Blockly.removeClass_(this.fieldGroup_,"blocklyEditableText"),this.fieldGroup_.style.cursor=""))};Blockly.Field.prototype.isVisible=function(){return this.visible_};
+Blockly.Field.prototype.setVisible=function(a){this.visible_!=a&&(this.visible_=a,this.getSvgRoot().style.display=a?"block":"none",this.render_())};Blockly.Field.prototype.getSvgRoot=function(){return this.fieldGroup_};Blockly.Field.prototype.render_=function(){if(this.visible_){try{var a=this.textElement_.getComputedTextLength()}catch(b){a=8*this.textElement_.textContent.length}this.borderRect_&&this.borderRect_.setAttribute("width",a+Blockly.BlockSvg.SEP_SPACE_X)}else a=0;this.size_.width=a};
+Blockly.Field.prototype.getSize=function(){this.size_.width||this.render_();return this.size_};Blockly.Field.prototype.getText=function(){return this.text_};Blockly.Field.prototype.setText=function(a){null!==a&&a!==this.text_&&(this.text_=a,this.updateTextNode_(),this.sourceBlock_&&this.sourceBlock_.rendered&&(this.sourceBlock_.render(),this.sourceBlock_.bumpNeighbours_(),this.sourceBlock_.workspace.fireChangeEvent()))};
+Blockly.Field.prototype.updateTextNode_=function(){var a=this.text_;goog.dom.removeChildren(this.textElement_);a=a.replace(/\s/g,Blockly.Field.NBSP);Blockly.RTL&&a&&(a+="\u200f");a||(a=Blockly.Field.NBSP);a=document.createTextNode(a);this.textElement_.appendChild(a);this.size_.width=0};Blockly.Field.prototype.getValue=function(){return this.getText()};Blockly.Field.prototype.setValue=function(a){this.setText(a)};
+Blockly.Field.prototype.onMouseUp_=function(a){if(!goog.userAgent.IPHONE&&!goog.userAgent.IPAD||0===a.layerX||0===a.layerY)Blockly.isRightButton(a)||2!=Blockly.dragMode_&&this.sourceBlock_.isEditable()&&this.showEditor_()};Blockly.Field.prototype.setTooltip=function(a){};
+// Copyright 2011 Google Inc.  Apache License 2.0
+Blockly.Tooltip={};Blockly.Tooltip.visible=!1;Blockly.Tooltip.LIMIT=50;Blockly.Tooltip.mouseOutPid_=0;Blockly.Tooltip.showPid_=0;Blockly.Tooltip.lastXY_={x:0,y:0};Blockly.Tooltip.element_=null;Blockly.Tooltip.poisonedElement_=null;Blockly.Tooltip.svgGroup_=null;Blockly.Tooltip.svgText_=null;Blockly.Tooltip.svgBackground_=null;Blockly.Tooltip.svgShadow_=null;Blockly.Tooltip.OFFSET_X=0;Blockly.Tooltip.OFFSET_Y=10;Blockly.Tooltip.RADIUS_OK=10;Blockly.Tooltip.HOVER_MS=1E3;Blockly.Tooltip.MARGINS=5;
+Blockly.Tooltip.createDom=function(){var a=Blockly.createSvgElement("g",{"class":"blocklyHidden"},null);Blockly.Tooltip.svgGroup_=a;Blockly.Tooltip.svgShadow_=Blockly.createSvgElement("rect",{"class":"blocklyTooltipShadow",x:2,y:2},a);Blockly.Tooltip.svgBackground_=Blockly.createSvgElement("rect",{"class":"blocklyTooltipBackground"},a);Blockly.Tooltip.svgText_=Blockly.createSvgElement("text",{"class":"blocklyTooltipText"},a);return a};
+Blockly.Tooltip.bindMouseEvents=function(a){Blockly.bindEvent_(a,"mouseover",null,Blockly.Tooltip.onMouseOver_);Blockly.bindEvent_(a,"mouseout",null,Blockly.Tooltip.onMouseOut_);Blockly.bindEvent_(a,"mousemove",null,Blockly.Tooltip.onMouseMove_)};Blockly.Tooltip.onMouseOver_=function(a){for(a=a.target;!goog.isString(a.tooltip)&&!goog.isFunction(a.tooltip);)a=a.tooltip;Blockly.Tooltip.element_!=a&&(Blockly.Tooltip.hide(),Blockly.Tooltip.poisonedElement_=null,Blockly.Tooltip.element_=a);window.clearTimeout(Blockly.Tooltip.mouseOutPid_)};
+Blockly.Tooltip.onMouseOut_=function(a){Blockly.Tooltip.mouseOutPid_=window.setTimeout(function(){Blockly.Tooltip.element_=null;Blockly.Tooltip.poisonedElement_=null;Blockly.Tooltip.hide()},1);window.clearTimeout(Blockly.Tooltip.showPid_)};
+Blockly.Tooltip.onMouseMove_=function(a){if(Blockly.Tooltip.element_&&Blockly.Tooltip.element_.tooltip&&0==Blockly.dragMode_&&!Blockly.WidgetDiv.isVisible())if(Blockly.Tooltip.visible){a=Blockly.mouseToSvg(a);var b=Blockly.Tooltip.lastXY_.y-a.y;Math.sqrt(Math.pow(Blockly.Tooltip.lastXY_.x-a.x,2)+Math.pow(b,2))>Blockly.Tooltip.RADIUS_OK&&Blockly.Tooltip.hide()}else Blockly.Tooltip.poisonedElement_!=Blockly.Tooltip.element_&&(window.clearTimeout(Blockly.Tooltip.showPid_),Blockly.Tooltip.lastXY_=Blockly.mouseToSvg(a),
+Blockly.Tooltip.showPid_=window.setTimeout(Blockly.Tooltip.show_,Blockly.Tooltip.HOVER_MS))};Blockly.Tooltip.hide=function(){Blockly.Tooltip.visible&&(Blockly.Tooltip.visible=!1,Blockly.Tooltip.svgGroup_&&(Blockly.Tooltip.svgGroup_.style.display="none"));window.clearTimeout(Blockly.Tooltip.showPid_)};
+Blockly.Tooltip.show_=function(){Blockly.Tooltip.poisonedElement_=Blockly.Tooltip.element_;if(Blockly.Tooltip.svgGroup_){goog.dom.removeChildren(Blockly.Tooltip.svgText_);var a=Blockly.Tooltip.element_.tooltip;goog.isFunction(a)&&(a=a());for(var a=Blockly.Tooltip.wrap_(a,Blockly.Tooltip.LIMIT),a=a.split("\n"),b=0;b<a.length;b++){var c=Blockly.createSvgElement("tspan",{dy:"1em",x:Blockly.Tooltip.MARGINS},Blockly.Tooltip.svgText_),d=document.createTextNode(a[b]);c.appendChild(d)}Blockly.Tooltip.visible=
+!0;Blockly.Tooltip.svgGroup_.style.display="block";a=Blockly.Tooltip.svgText_.getBBox();b=2*Blockly.Tooltip.MARGINS+a.width;c=a.height;Blockly.Tooltip.svgBackground_.setAttribute("width",b);Blockly.Tooltip.svgBackground_.setAttribute("height",c);Blockly.Tooltip.svgShadow_.setAttribute("width",b);Blockly.Tooltip.svgShadow_.setAttribute("height",c);if(Blockly.RTL)for(var c=a.width,d=0,e;e=Blockly.Tooltip.svgText_.childNodes[d];d++)e.setAttribute("text-anchor","end"),e.setAttribute("x",c+Blockly.Tooltip.MARGINS);
+c=Blockly.Tooltip.lastXY_.x;c=Blockly.RTL?c-(Blockly.Tooltip.OFFSET_X+b):c+Blockly.Tooltip.OFFSET_X;b=Blockly.Tooltip.lastXY_.y+Blockly.Tooltip.OFFSET_Y;d=Blockly.svgSize();b+a.height>d.height&&(b-=a.height+2*Blockly.Tooltip.OFFSET_Y);Blockly.RTL?c=Math.max(Blockly.Tooltip.MARGINS,c):c+a.width>d.width-2*Blockly.Tooltip.MARGINS&&(c=d.width-a.width-2*Blockly.Tooltip.MARGINS);Blockly.Tooltip.svgGroup_.setAttribute("transform","translate("+c+","+b+")")}};
+Blockly.Tooltip.wrap_=function(a,b){if(a.length<=b)return a;for(var c=a.trim().split(/\s+/),d=0;d<c.length;d++)c[d].length>b&&(b=c[d].length);var e,d=-Infinity,f,g=1;do{e=d;f=a;for(var h=[],k=c.length/g,l=1,d=0;d<c.length-1;d++)l<(d+1.5)/k?(l++,h[d]=!0):h[d]=!1;h=Blockly.Tooltip.wrapMutate_(c,h,b);d=Blockly.Tooltip.wrapScore_(c,h,b);a=Blockly.Tooltip.wrapToText_(c,h);g++}while(d>e);return f};
+Blockly.Tooltip.wrapScore_=function(a,b,c){for(var d=[0],e=[],f=0;f<a.length;f++)d[d.length-1]+=a[f].length,!0===b[f]?(d.push(0),e.push(a[f].charAt(a[f].length-1))):!1===b[f]&&d[d.length-1]++;a=Math.max.apply(Math,d);for(f=b=0;f<d.length;f++)b-=2*Math.pow(Math.abs(c-d[f]),1.5),b-=Math.pow(a-d[f],1.5),-1!=".?!".indexOf(e[f])?b+=c/3:-1!=",;)]}".indexOf(e[f])&&(b+=c/4);1<d.length&&d[d.length-1]<=d[d.length-2]&&(b+=.5);return b};
+Blockly.Tooltip.wrapMutate_=function(a,b,c){for(var d=Blockly.Tooltip.wrapScore_(a,b,c),e,f=0;f<b.length-1;f++)if(b[f]!=b[f+1]){var g=[].concat(b);g[f]=!g[f];g[f+1]=!g[f+1];var h=Blockly.Tooltip.wrapScore_(a,g,c);h>d&&(d=h,e=g)}return e?Blockly.Tooltip.wrapMutate_(a,e,c):b};Blockly.Tooltip.wrapToText_=function(a,b){for(var c=[],d=0;d<a.length;d++)c.push(a[d]),void 0!==b[d]&&c.push(b[d]?"\n":" ");return c.join("")};
+// Copyright 2012 Google Inc.  Apache License 2.0
+Blockly.FieldLabel=function(a){this.sourceBlock_=null;this.textElement_=Blockly.createSvgElement("text",{"class":"blocklyText"},null);this.size_={height:25,width:0};this.setText(a)};goog.inherits(Blockly.FieldLabel,Blockly.Field);Blockly.FieldLabel.prototype.clone=function(){return new Blockly.FieldLabel(this.getText())};Blockly.FieldLabel.prototype.EDITABLE=!1;
+Blockly.FieldLabel.prototype.init=function(a){this.sourceBlock_||(this.sourceBlock_=a,a.getSvgRoot().appendChild(this.textElement_),this.textElement_.tooltip=this.sourceBlock_,Blockly.Tooltip.bindMouseEvents(this.textElement_))};Blockly.FieldLabel.prototype.dispose=function(){goog.dom.removeNode(this.textElement_);this.textElement_=null};Blockly.FieldLabel.prototype.getSvgRoot=function(){return this.textElement_};Blockly.FieldLabel.prototype.setTooltip=function(a){this.textElement_.tooltip=a};
+// Copyright 2012 Google Inc.  Apache License 2.0
+Blockly.Input=function(a,b,c,d){this.type=a;this.name=b;this.sourceBlock_=c;this.connection=d;this.fieldRow=[];this.align=Blockly.ALIGN_LEFT;this.visible_=!0};
+Blockly.Input.prototype.appendField=function(a,b){if(!a&&!b)return this;goog.isString(a)&&(a=new Blockly.FieldLabel(a));this.sourceBlock_.rendered&&a.init(this.sourceBlock_);a.name=b;a.prefixField&&this.appendField(a.prefixField);this.fieldRow.push(a);a.suffixField&&this.appendField(a.suffixField);this.sourceBlock_.rendered&&(this.sourceBlock_.render(),this.sourceBlock_.bumpNeighbours_());return this};
+Blockly.Input.prototype.appendTitle=function(a,b){console.log("Deprecated call to appendTitle, use appendField instead.");return this.appendField(a,b)};Blockly.Input.prototype.removeField=function(a){for(var b=0,c;c=this.fieldRow[b];b++)if(c.name===a){c.dispose();this.fieldRow.splice(b,1);this.sourceBlock_.rendered&&(this.sourceBlock_.render(),this.sourceBlock_.bumpNeighbours_());return}goog.asserts.fail('Field "%s" not found.',a)};Blockly.Input.prototype.isVisible=function(){return this.visible_};
+Blockly.Input.prototype.setVisible=function(a){var b=[];if(this.visible_==a)return b;for(var c=(this.visible_=a)?"block":"none",d=0,e;e=this.fieldRow[d];d++)e.setVisible(a);this.connection&&(a?b=this.connection.unhideAll():this.connection.hideAll(),d=this.connection.targetBlock())&&(d.getSvgRoot().style.display=c,a||(d.rendered=!1));return b};Blockly.Input.prototype.setCheck=function(a){if(!this.connection)throw"This input does not have a connection.";this.connection.setCheck(a);return this};
+Blockly.Input.prototype.setAlign=function(a){this.align=a;this.sourceBlock_.rendered&&this.sourceBlock_.render();return this};Blockly.Input.prototype.init=function(){for(var a=0;a<this.fieldRow.length;a++)this.fieldRow[a].init(this.sourceBlock_)};Blockly.Input.prototype.dispose=function(){for(var a=0,b;b=this.fieldRow[a];a++)b.dispose();this.connection&&this.connection.dispose();this.sourceBlock_=null};
 // Copyright 2011 Google Inc.  Apache License 2.0
 Blockly.ScrollbarPair=function(a){this.workspace_=a;this.oldHostMetrics_=null;this.hScroll=new Blockly.Scrollbar(a,!0,!0);this.vScroll=new Blockly.Scrollbar(a,!1,!0);this.corner_=Blockly.createSvgElement("rect",{height:Blockly.Scrollbar.scrollbarThickness,width:Blockly.Scrollbar.scrollbarThickness,style:"fill: #fff"},null);Blockly.Scrollbar.insertAfter_(this.corner_,a.getBubbleCanvas())};
 Blockly.ScrollbarPair.prototype.dispose=function(){Blockly.unbindEvent_(this.onResizeWrapper_);this.onResizeWrapper_=null;goog.dom.removeNode(this.corner_);this.oldHostMetrics_=this.workspace_=this.corner_=null;this.hScroll.dispose();this.hScroll=null;this.vScroll.dispose();this.vScroll=null};
@@ -858,7 +909,7 @@ Blockly.ScrollbarPair.prototype.resize=function(){var a=this.workspace_.getMetri
 this.oldHostMetrics_.contentHeight==a.contentHeight&&this.oldHostMetrics_.viewTop==a.viewTop&&this.oldHostMetrics_.contentTop==a.contentTop||(c=!0)):c=b=!0;b&&this.hScroll.resize(a);c&&this.vScroll.resize(a);this.oldHostMetrics_&&this.oldHostMetrics_.viewWidth==a.viewWidth&&this.oldHostMetrics_.absoluteLeft==a.absoluteLeft||this.corner_.setAttribute("x",this.vScroll.xCoordinate);this.oldHostMetrics_&&this.oldHostMetrics_.viewHeight==a.viewHeight&&this.oldHostMetrics_.absoluteTop==a.absoluteTop||this.corner_.setAttribute("y",
 this.hScroll.yCoordinate);this.oldHostMetrics_=a}};Blockly.ScrollbarPair.prototype.set=function(a,b){this.hScroll.set(a);this.vScroll.set(b)};
 Blockly.Scrollbar=function(a,b,c){this.workspace_=a;this.pair_=c||!1;this.horizontal_=b;this.createDom_();b?(this.svgBackground_.setAttribute("height",Blockly.Scrollbar.scrollbarThickness),this.svgKnob_.setAttribute("height",Blockly.Scrollbar.scrollbarThickness-6),this.svgKnob_.setAttribute("y",3)):(this.svgBackground_.setAttribute("width",Blockly.Scrollbar.scrollbarThickness),this.svgKnob_.setAttribute("width",Blockly.Scrollbar.scrollbarThickness-6),this.svgKnob_.setAttribute("x",3));this.onMouseDownBarWrapper_=
-Blockly.bindEvent_(this.svgBackground_,"mousedown",this,this.onMouseDownBar_);this.onMouseDownKnobWrapper_=Blockly.bindEvent_(this.svgKnob_,"mousedown",this,this.onMouseDownKnob_)};Blockly.Scrollbar.scrollbarThickness="ontouchstart"in document.documentElement?25:15;
+Blockly.bindEvent_(this.svgBackground_,"mousedown",this,this.onMouseDownBar_);this.onMouseDownKnobWrapper_=Blockly.bindEvent_(this.svgKnob_,"mousedown",this,this.onMouseDownKnob_)};this.document&&(Blockly.Scrollbar.scrollbarThickness="ontouchstart"in this.document.documentElement?25:15);
 Blockly.Scrollbar.prototype.dispose=function(){this.onMouseUpKnob_();this.onResizeWrapper_&&(Blockly.unbindEvent_(this.onResizeWrapper_),this.onResizeWrapper_=null);Blockly.unbindEvent_(this.onMouseDownBarWrapper_);this.onMouseDownBarWrapper_=null;Blockly.unbindEvent_(this.onMouseDownKnobWrapper_);this.onMouseDownKnobWrapper_=null;goog.dom.removeNode(this.svgGroup_);this.workspace_=this.svgKnob_=this.svgBackground_=this.svgGroup_=null};
 Blockly.Scrollbar.prototype.resize=function(a){if(!a&&(a=this.workspace_.getMetrics(),!a))return;if(this.horizontal_){var b=a.viewWidth;this.pair_?b-=Blockly.Scrollbar.scrollbarThickness:this.setVisible(b<a.contentHeight);this.ratio_=b/a.contentWidth;if(-Infinity===this.ratio_||Infinity===this.ratio_||isNaN(this.ratio_))this.ratio_=0;var c=a.viewWidth*this.ratio_,d=(a.viewLeft-a.contentLeft)*this.ratio_;this.svgKnob_.setAttribute("width",Math.max(0,c));this.xCoordinate=a.absoluteLeft;this.pair_&&
 Blockly.RTL&&(this.xCoordinate+=a.absoluteLeft+Blockly.Scrollbar.scrollbarThickness);this.yCoordinate=a.absoluteTop+a.viewHeight-Blockly.Scrollbar.scrollbarThickness;this.svgGroup_.setAttribute("transform","translate("+this.xCoordinate+", "+this.yCoordinate+")");this.svgBackground_.setAttribute("width",Math.max(0,b));this.svgKnob_.setAttribute("x",this.constrainKnob_(d))}else{b=a.viewHeight;this.pair_?b-=Blockly.Scrollbar.scrollbarThickness:this.setVisible(b<a.contentHeight);this.ratio_=b/a.contentHeight;
@@ -882,192 +933,71 @@ Blockly.Trashcan.prototype.position_=function(){var a=this.workspace_.getMetrics
 Blockly.Trashcan.prototype.getRect=function(){var a=Blockly.getSvgXY_(this.svgGroup_);return new goog.math.Rect(a.x-this.MARGIN_HOTSPOT_,a.y-this.MARGIN_HOTSPOT_,this.WIDTH_+2*this.MARGIN_HOTSPOT_,this.BODY_HEIGHT_+this.LID_HEIGHT_+2*this.MARGIN_HOTSPOT_)};Blockly.Trashcan.prototype.setOpen_=function(a){this.isOpen!=a&&(goog.Timer.clear(this.lidTask_),this.isOpen=a,this.animateLid_())};
 Blockly.Trashcan.prototype.animateLid_=function(){this.lidOpen_+=this.isOpen?.2:-.2;this.lidOpen_=goog.math.clamp(this.lidOpen_,0,1);var a=45*this.lidOpen_;this.svgLid_.setAttribute("transform","rotate("+(Blockly.RTL?-a:a)+", "+(Blockly.RTL?4:this.WIDTH_-4)+", "+(this.LID_HEIGHT_-2)+")");a=goog.math.lerp(.2,.4,this.lidOpen_);this.svgGroup_.style.opacity=a;if(0<this.lidOpen_||1>this.lidOpen_)this.lidTask_=goog.Timer.callOnce(this.animateLid_,20,this)};Blockly.Trashcan.prototype.close=function(){this.setOpen_(!1)};
 // Copyright 2012 Google Inc.  Apache License 2.0
-Blockly.Xml={};Blockly.Xml.workspaceToDom=function(a){var b;Blockly.RTL&&(b=a.getMetrics().viewWidth);var c=goog.dom.createDom("xml");a=a.getTopBlocks(!0);for(var d=0,e;e=a[d];d++){var f=Blockly.Xml.blockToDom_(e);e=e.getRelativeToSurfaceXY();f.setAttribute("x",Blockly.RTL?b-e.x:e.x);f.setAttribute("y",e.y);c.appendChild(f)}return c};
-Blockly.Xml.blockToDom_=function(a){var b=goog.dom.createDom("block");b.setAttribute("type",a.type);b.setAttribute("id",a.id);if(a.mutationToDom){var c=a.mutationToDom();c&&b.appendChild(c)}for(var d=0;c=a.inputList[d];d++)for(var e=0,f;f=c.fieldRow[e];e++)if(f.name&&f.EDITABLE){var g=goog.dom.createDom("field",null,f.getValue());g.setAttribute("name",f.name);b.appendChild(g)}a.comment&&(c=goog.dom.createDom("comment",null,a.comment.getText()),c.setAttribute("pinned",a.comment.isVisible()),d=a.comment.getBubbleSize(),
-c.setAttribute("h",d.height),c.setAttribute("w",d.width),b.appendChild(c));d=!1;for(e=0;c=a.inputList[e];e++){var h;f=!0;c.type!=Blockly.DUMMY_INPUT&&(g=c.connection.targetBlock(),c.type==Blockly.INPUT_VALUE?(h=goog.dom.createDom("value"),d=!0):c.type==Blockly.NEXT_STATEMENT&&(h=goog.dom.createDom("statement")),g&&(h.appendChild(Blockly.Xml.blockToDom_(g)),f=!1),h.setAttribute("name",c.name),f||b.appendChild(h))}d&&b.setAttribute("inline",a.inputsInline);a.isCollapsed()&&b.setAttribute("collapsed",
-!0);a.disabled&&b.setAttribute("disabled",!0);a.isDeletable()||b.setAttribute("deletable",!1);a.isMovable()||b.setAttribute("movable",!1);a.isEditable()||b.setAttribute("editable",!1);if(a=a.getNextBlock())h=goog.dom.createDom("next",null,Blockly.Xml.blockToDom_(a)),b.appendChild(h);return b};Blockly.Xml.domToText=function(a){return(new XMLSerializer).serializeToString(a)};
+Blockly.Xml={};Blockly.Xml.workspaceToDom=function(a){var b;Blockly.RTL&&(b=workarea.getWidth());var c=goog.dom.createDom("xml");a=a.getTopBlocks(!0);for(var d=0,e;e=a[d];d++){var f=Blockly.Xml.blockToDom_(e);e=e.getRelativeToSurfaceXY();f.setAttribute("x",Blockly.RTL?b-e.x:e.x);f.setAttribute("y",e.y);c.appendChild(f)}return c};
+Blockly.Xml.blockToDom_=function(a){var b=goog.dom.createDom("block");b.setAttribute("type",a.type);b.setAttribute("id",a.id);if(a.mutationToDom){var c=a.mutationToDom();c&&b.appendChild(c)}for(var d=0;c=a.inputList[d];d++)for(var e=0,f;f=c.fieldRow[e];e++)if(f.name&&f.EDITABLE){var g=goog.dom.createDom("field",null,f.getValue());g.setAttribute("name",f.name);b.appendChild(g)}if(c=a.getCommentText())c=goog.dom.createDom("comment",null,c),"object"==typeof a.comment&&(c.setAttribute("pinned",a.comment.isVisible()),
+d=a.comment.getBubbleSize(),c.setAttribute("h",d.height),c.setAttribute("w",d.width)),b.appendChild(c);d=!1;for(e=0;c=a.inputList[e];e++){var h;f=!0;c.type!=Blockly.DUMMY_INPUT&&(g=c.connection.targetBlock(),c.type==Blockly.INPUT_VALUE?(h=goog.dom.createDom("value"),d=!0):c.type==Blockly.NEXT_STATEMENT&&(h=goog.dom.createDom("statement")),g&&(h.appendChild(Blockly.Xml.blockToDom_(g)),f=!1),h.setAttribute("name",c.name),f||b.appendChild(h))}d&&b.setAttribute("inline",a.inputsInline);a.isCollapsed()&&
+b.setAttribute("collapsed",!0);a.disabled&&b.setAttribute("disabled",!0);a.isDeletable()||b.setAttribute("deletable",!1);a.isMovable()||b.setAttribute("movable",!1);a.isEditable()||b.setAttribute("editable",!1);if(a=a.getNextBlock())h=goog.dom.createDom("next",null,Blockly.Xml.blockToDom_(a)),b.appendChild(h);return b};Blockly.Xml.domToText=function(a){return(new XMLSerializer).serializeToString(a)};
 Blockly.Xml.domToPrettyText=function(a){a=Blockly.Xml.domToText(a).split("<");for(var b="",c=1;c<a.length;c++){var d=a[c];"/"==d[0]&&(b=b.substring(2));a[c]=b+"<"+d;"/"!=d[0]&&"/>"!=d.slice(-2)&&(b+="  ")}a=a.join("\n");a=a.replace(/(<(\w+)\b[^>]*>[^\n]*)\n *<\/\2>/g,"$1</$2>");return a.replace(/^\n/,"")};
 Blockly.Xml.textToDom=function(a){a=(new DOMParser).parseFromString(a,"text/xml");if(!a||!a.firstChild||"xml"!=a.firstChild.nodeName.toLowerCase()||a.firstChild!==a.lastChild)throw"Blockly.Xml.textToDom did not obtain a valid XML tree.";return a.firstChild};
-Blockly.Xml.domToWorkspace=function(a,b){if(Blockly.RTL)var c=a.getMetrics().viewWidth;for(var d=0,e;e=b.childNodes[d];d++)if("block"==e.nodeName.toLowerCase()){var f=Blockly.Xml.domToBlock(a,e),g=parseInt(e.getAttribute("x"),10);e=parseInt(e.getAttribute("y"),10);isNaN(g)||isNaN(e)||f.moveBy(Blockly.RTL?c-g:g,e)}};
-Blockly.Xml.domToBlock=function(a,b,c){var d=null,e=b.getAttribute("type");if(!e)throw"Block type unspecified: \n"+b.outerHTML;var f=b.getAttribute("id");if(c&&f){d=Blockly.Block.getById(f,a);if(!d)throw"Couldn't get Block with id: "+f;f=d.getParent();d.workspace&&d.dispose(!0,!1,!0);d.fill(a,e);d.parent_=f}else d=Blockly.Block.obtain(a,e);d.svg_||d.initSvg();(f=b.getAttribute("inline"))&&d.setInputsInline("true"==f);(f=b.getAttribute("disabled"))&&d.setDisabled("true"==f);(f=b.getAttribute("deletable"))&&
-d.setDeletable("true"==f);(f=b.getAttribute("movable"))&&d.setMovable("true"==f);(f=b.getAttribute("editable"))&&d.setEditable("true"==f);for(var g=null,f=0,h;h=b.childNodes[f];f++)if(3!=h.nodeType||!h.data.match(/^\s*$/)){for(var g=null,k=0,l;l=h.childNodes[k];k++)3==l.nodeType&&l.data.match(/^\s*$/)||(g=l);k=h.getAttribute("name");switch(h.nodeName.toLowerCase()){case "mutation":d.domToMutation&&d.domToMutation(h);break;case "comment":d.setCommentText(h.textContent);var p=h.getAttribute("pinned");
-p&&setTimeout(function(){d.comment.setVisible("true"==p)},1);g=parseInt(h.getAttribute("w"),10);h=parseInt(h.getAttribute("h"),10);isNaN(g)||isNaN(h)||d.comment.setBubbleSize(g,h);break;case "title":case "field":d.setFieldValue(h.textContent,k);break;case "value":case "statement":h=d.getInput(k);if(!h)throw"Input "+k+" does not exist in block "+e;if(g&&"block"==g.nodeName.toLowerCase())if(g=Blockly.Xml.domToBlock(a,g,c),g.outputConnection)h.connection.connect(g.outputConnection);else if(g.previousConnection)h.connection.connect(g.previousConnection);
-else throw"Child block does not have output or previous statement.";break;case "next":if(g&&"block"==g.nodeName.toLowerCase()){if(!d.nextConnection)throw"Next statement does not exist.";if(d.nextConnection.targetConnection)throw"Next statement is already connected.";g=Blockly.Xml.domToBlock(a,g,c);if(!g.previousConnection)throw"Next block does not have previous statement.";d.nextConnection.connect(g.previousConnection)}}}(a=b.getAttribute("collapsed"))&&d.setCollapsed("true"==a);(a=d.getNextBlock())?
-a.render():d.render();return d};Blockly.Xml.deleteNext=function(a){for(var b=0,c;c=a.childNodes[b];b++)if("next"==c.nodeName.toLowerCase()){a.removeChild(c);break}};window.Blockly||(window.Blockly={});window.Blockly.Xml||(window.Blockly.Xml={});window.Blockly.Xml.domToText=Blockly.Xml.domToText;window.Blockly.Xml.domToWorkspace=Blockly.Xml.domToWorkspace;window.Blockly.Xml.textToDom=Blockly.Xml.textToDom;window.Blockly.Xml.workspaceToDom=Blockly.Xml.workspaceToDom;
-// Copyright 2012 Google Inc.  Apache License 2.0
-Blockly.Workspace=function(a,b){this.getMetrics=a;this.setMetrics=b;this.isFlyout=!1;this.topBlocks_=[];this.maxBlocks=Infinity;Blockly.ConnectionDB.init(this)};Blockly.Workspace.SCAN_ANGLE=3;Blockly.Workspace.prototype.dragMode=!1;Blockly.Workspace.prototype.scrollX=0;Blockly.Workspace.prototype.scrollY=0;Blockly.Workspace.prototype.trashcan=null;Blockly.Workspace.prototype.fireChangeEventPid_=null;Blockly.Workspace.prototype.scrollbar=null;
-Blockly.Workspace.prototype.createDom=function(){this.svgGroup_=Blockly.createSvgElement("g",{},null);this.svgBlockCanvas_=Blockly.createSvgElement("g",{},this.svgGroup_);this.svgBubbleCanvas_=Blockly.createSvgElement("g",{},this.svgGroup_);this.fireChangeEvent();return this.svgGroup_};
-Blockly.Workspace.prototype.dispose=function(){this.svgGroup_&&(goog.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.svgBubbleCanvas_=this.svgBlockCanvas_=null;this.flyout_&&(this.flyout_.dispose(),this.flyout_=null);this.trashcan&&(this.trashcan.dispose(),this.trashcan=null)};
-Blockly.Workspace.prototype.addTrashcan=function(){if(Blockly.hasTrashcan&&!Blockly.readOnly){this.trashcan=new Blockly.Trashcan(this);var a=this.trashcan.createDom();this.svgGroup_.insertBefore(a,this.svgBlockCanvas_);this.trashcan.init()}};Blockly.Workspace.prototype.getCanvas=function(){return this.svgBlockCanvas_};Blockly.Workspace.prototype.getBubbleCanvas=function(){return this.svgBubbleCanvas_};
-Blockly.Workspace.prototype.addTopBlock=function(a){this.topBlocks_.push(a);Blockly.Realtime.isEnabled()&&this==Blockly.mainWorkspace&&Blockly.Realtime.addTopBlock(a);this.fireChangeEvent()};
-Blockly.Workspace.prototype.removeTopBlock=function(a){for(var b=!1,c,d=0;c=this.topBlocks_[d];d++)if(c==a){this.topBlocks_.splice(d,1);b=!0;break}if(!b)throw"Block not present in workspace's list of top-most blocks.";Blockly.Realtime.isEnabled()&&this==Blockly.mainWorkspace&&Blockly.Realtime.removeTopBlock(a);this.fireChangeEvent()};
-Blockly.Workspace.prototype.getTopBlocks=function(a){var b=[].concat(this.topBlocks_);if(a&&1<b.length){var c=Math.sin(goog.math.toRadians(Blockly.Workspace.SCAN_ANGLE));Blockly.RTL&&(c*=-1);b.sort(function(a,b){var f=a.getRelativeToSurfaceXY(),g=b.getRelativeToSurfaceXY();return f.y+c*f.x-(g.y+c*g.x)})}return b};Blockly.Workspace.prototype.getAllBlocks=function(){for(var a=this.getTopBlocks(!1),b=0;b<a.length;b++)a.push.apply(a,a[b].getChildren());return a};Blockly.Workspace.prototype.clear=function(){for(Blockly.hideChaff();this.topBlocks_.length;)this.topBlocks_[0].dispose()};
-Blockly.Workspace.prototype.render=function(){for(var a=this.getAllBlocks(),b=0,c;c=a[b];b++)c.getChildren().length||c.render()};Blockly.Workspace.prototype.getBlockById=function(a){for(var b=this.getAllBlocks(),c=0,d;d=b[c];c++)if(d.id==a)return d;return null};
-Blockly.Workspace.prototype.traceOn=function(a){this.traceOn_=a;this.traceWrapper_&&(Blockly.unbindEvent_(this.traceWrapper_),this.traceWrapper_=null);a&&(this.traceWrapper_=Blockly.bindEvent_(this.svgBlockCanvas_,"blocklySelectChange",this,function(){this.traceOn_=!1}))};
-Blockly.Workspace.prototype.highlightBlock=function(a){this.traceOn_&&0!=Blockly.Block.dragMode_&&this.traceOn(!1);if(this.traceOn_){var b=null;if(a&&(b=this.getBlockById(a),!b))return;this.traceOn(!1);b?b.select():Blockly.selected&&Blockly.selected.unselect();var c=this;setTimeout(function(){c.traceOn(!0)},1)}};
-Blockly.Workspace.prototype.fireChangeEvent=function(){this.fireChangeEventPid_&&window.clearTimeout(this.fireChangeEventPid_);var a=this.svgBlockCanvas_;a&&(this.fireChangeEventPid_=window.setTimeout(function(){Blockly.fireUiEvent(a,"blocklyWorkspaceChange")},0))};
-Blockly.Workspace.prototype.paste=function(a){if(!(a.getElementsByTagName("block").length>=this.remainingCapacity())){var b=Blockly.Xml.domToBlock(this,a),c=parseInt(a.getAttribute("x"),10);a=parseInt(a.getAttribute("y"),10);if(!isNaN(c)&&!isNaN(a)){Blockly.RTL&&(c=-c);do for(var d=!1,e=this.getAllBlocks(),f=0,g;g=e[f];f++)g=g.getRelativeToSurfaceXY(),1>=Math.abs(c-g.x)&&1>=Math.abs(a-g.y)&&(c=Blockly.RTL?c-Blockly.SNAP_RADIUS:c+Blockly.SNAP_RADIUS,a+=2*Blockly.SNAP_RADIUS,d=!0);while(d);b.moveBy(c,
-a)}b.select()}};Blockly.Workspace.prototype.remainingCapacity=function(){return Infinity==this.maxBlocks?Infinity:this.maxBlocks-this.getAllBlocks().length};Blockly.Workspace.prototype.recordDeleteAreas=function(){this.deleteAreaTrash_=this.trashcan?this.trashcan.getRect():null;this.deleteAreaToolbox_=this.flyout_?this.flyout_.getRect():this.toolbox_?this.toolbox_.getRect():null};
-Blockly.Workspace.prototype.isDeleteArea=function(a){a=Blockly.mouseToSvg(a);a=new goog.math.Coordinate(a.x,a.y);if(this.deleteAreaTrash_){if(this.deleteAreaTrash_.contains(a))return this.trashcan.setOpen_(!0),Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE),!0;this.trashcan.setOpen_(!1)}if(this.deleteAreaToolbox_&&this.deleteAreaToolbox_.contains(a))return Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE),!0;Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);return!1};
-Blockly.Workspace.prototype.clear=Blockly.Workspace.prototype.clear;
-// Copyright 2012 Google Inc.  Apache License 2.0
-Blockly.Bubble=function(a,b,c,d,e,f,g){var h=Blockly.Bubble.ARROW_ANGLE;Blockly.RTL&&(h=-h);this.arrow_radians_=goog.math.toRadians(h);this.workspace_=a;this.content_=b;this.shape_=c;a.getBubbleCanvas().appendChild(this.createDom_(b,!(!f||!g)));this.setAnchorLocation(d,e);f&&g||(a=this.content_.getBBox(),f=a.width+2*Blockly.Bubble.BORDER_WIDTH,g=a.height+2*Blockly.Bubble.BORDER_WIDTH);this.setBubbleSize(f,g);this.positionBubble_();this.renderArrow_();this.rendered_=!0;Blockly.readOnly||(Blockly.bindEvent_(this.bubbleBack_,
-"mousedown",this,this.bubbleMouseDown_),this.resizeGroup_&&Blockly.bindEvent_(this.resizeGroup_,"mousedown",this,this.resizeMouseDown_))};Blockly.Bubble.BORDER_WIDTH=6;Blockly.Bubble.ARROW_THICKNESS=10;Blockly.Bubble.ARROW_ANGLE=20;Blockly.Bubble.ARROW_BEND=4;Blockly.Bubble.ANCHOR_RADIUS=8;Blockly.Bubble.onMouseUpWrapper_=null;Blockly.Bubble.onMouseMoveWrapper_=null;
-Blockly.Bubble.unbindDragEvents_=function(){Blockly.Bubble.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Bubble.onMouseUpWrapper_),Blockly.Bubble.onMouseUpWrapper_=null);Blockly.Bubble.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.Bubble.onMouseMoveWrapper_),Blockly.Bubble.onMouseMoveWrapper_=null)};Blockly.Bubble.prototype.rendered_=!1;Blockly.Bubble.prototype.anchorX_=0;Blockly.Bubble.prototype.anchorY_=0;Blockly.Bubble.prototype.relativeLeft_=0;Blockly.Bubble.prototype.relativeTop_=0;
-Blockly.Bubble.prototype.width_=0;Blockly.Bubble.prototype.height_=0;Blockly.Bubble.prototype.autoLayout_=!0;
-Blockly.Bubble.prototype.createDom_=function(a,b){this.bubbleGroup_=Blockly.createSvgElement("g",{},null);var c=Blockly.createSvgElement("g",{filter:"url(#blocklyEmboss)"},this.bubbleGroup_);this.bubbleArrow_=Blockly.createSvgElement("path",{},c);this.bubbleBack_=Blockly.createSvgElement("rect",{"class":"blocklyDraggable",x:0,y:0,rx:Blockly.Bubble.BORDER_WIDTH,ry:Blockly.Bubble.BORDER_WIDTH},c);b?(this.resizeGroup_=Blockly.createSvgElement("g",{"class":Blockly.RTL?"blocklyResizeSW":"blocklyResizeSE"},
-this.bubbleGroup_),c=2*Blockly.Bubble.BORDER_WIDTH,Blockly.createSvgElement("polygon",{points:"0,x x,x x,0".replace(/x/g,c.toString())},this.resizeGroup_),Blockly.createSvgElement("line",{"class":"blocklyResizeLine",x1:c/3,y1:c-1,x2:c-1,y2:c/3},this.resizeGroup_),Blockly.createSvgElement("line",{"class":"blocklyResizeLine",x1:2*c/3,y1:c-1,x2:c-1,y2:2*c/3},this.resizeGroup_)):this.resizeGroup_=null;this.bubbleGroup_.appendChild(a);return this.bubbleGroup_};
-Blockly.Bubble.prototype.bubbleMouseDown_=function(a){this.promote_();Blockly.Bubble.unbindDragEvents_();Blockly.isRightButton(a)||Blockly.isTargetInput_(a)||(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),this.dragDeltaX=Blockly.RTL?this.relativeLeft_+a.clientX:this.relativeLeft_-a.clientX,this.dragDeltaY=this.relativeTop_-a.clientY,Blockly.Bubble.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Bubble.unbindDragEvents_),Blockly.Bubble.onMouseMoveWrapper_=Blockly.bindEvent_(document,
-"mousemove",this,this.bubbleMouseMove_),Blockly.hideChaff(),a.stopPropagation())};Blockly.Bubble.prototype.bubbleMouseMove_=function(a){this.autoLayout_=!1;this.relativeLeft_=Blockly.RTL?this.dragDeltaX-a.clientX:this.dragDeltaX+a.clientX;this.relativeTop_=this.dragDeltaY+a.clientY;this.positionBubble_();this.renderArrow_()};
-Blockly.Bubble.prototype.resizeMouseDown_=function(a){this.promote_();Blockly.Bubble.unbindDragEvents_();Blockly.isRightButton(a)||(Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),this.resizeDeltaWidth=Blockly.RTL?this.width_+a.clientX:this.width_-a.clientX,this.resizeDeltaHeight=this.height_-a.clientY,Blockly.Bubble.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Bubble.unbindDragEvents_),Blockly.Bubble.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.resizeMouseMove_),
-Blockly.hideChaff(),a.stopPropagation())};Blockly.Bubble.prototype.resizeMouseMove_=function(a){this.autoLayout_=!1;var b=this.resizeDeltaWidth,c=this.resizeDeltaHeight+a.clientY,b=Blockly.RTL?b-a.clientX:b+a.clientX;this.setBubbleSize(b,c);Blockly.RTL&&this.positionBubble_()};Blockly.Bubble.prototype.registerResizeEvent=function(a,b){Blockly.bindEvent_(this.bubbleGroup_,"resize",a,b)};Blockly.Bubble.prototype.promote_=function(){this.bubbleGroup_.parentNode.appendChild(this.bubbleGroup_)};
-Blockly.Bubble.prototype.setAnchorLocation=function(a,b){this.anchorX_=a;this.anchorY_=b;this.rendered_&&this.positionBubble_()};
-Blockly.Bubble.prototype.layoutBubble_=function(){var a=-this.width_/4,b=-this.height_-Blockly.BlockSvg.MIN_BLOCK_Y,c=this.workspace_.getMetrics();Blockly.RTL?this.anchorX_-c.viewLeft-a-this.width_<Blockly.Scrollbar.scrollbarThickness?a=this.anchorX_-c.viewLeft-this.width_-Blockly.Scrollbar.scrollbarThickness:this.anchorX_-c.viewLeft-a>c.viewWidth&&(a=this.anchorX_-c.viewLeft-c.viewWidth):this.anchorX_+a<c.viewLeft?a=c.viewLeft-this.anchorX_:c.viewLeft+c.viewWidth<this.anchorX_+a+this.width_+Blockly.BlockSvg.SEP_SPACE_X+
-Blockly.Scrollbar.scrollbarThickness&&(a=c.viewLeft+c.viewWidth-this.anchorX_-this.width_-Blockly.Scrollbar.scrollbarThickness);this.anchorY_+b<c.viewTop&&(b=this.shape_.getBBox().height);this.relativeLeft_=a;this.relativeTop_=b};Blockly.Bubble.prototype.positionBubble_=function(){this.bubbleGroup_.setAttribute("transform","translate("+(Blockly.RTL?this.anchorX_-this.relativeLeft_-this.width_:this.anchorX_+this.relativeLeft_)+", "+(this.relativeTop_+this.anchorY_)+")")};
-Blockly.Bubble.prototype.getBubbleSize=function(){return{width:this.width_,height:this.height_}};
-Blockly.Bubble.prototype.setBubbleSize=function(a,b){var c=2*Blockly.Bubble.BORDER_WIDTH;a=Math.max(a,c+45);b=Math.max(b,c+Blockly.BlockSvg.FIELD_HEIGHT);this.width_=a;this.height_=b;this.bubbleBack_.setAttribute("width",a);this.bubbleBack_.setAttribute("height",b);this.resizeGroup_&&(Blockly.RTL?this.resizeGroup_.setAttribute("transform","translate("+2*Blockly.Bubble.BORDER_WIDTH+", "+(b-c)+") scale(-1 1)"):this.resizeGroup_.setAttribute("transform","translate("+(a-c)+", "+(b-c)+")"));this.rendered_&&
-(this.autoLayout_&&this.layoutBubble_(),this.positionBubble_(),this.renderArrow_());Blockly.fireUiEvent(this.bubbleGroup_,"resize")};
-Blockly.Bubble.prototype.renderArrow_=function(){var a=[],b=this.width_/2,c=this.height_/2,d=-this.relativeLeft_,e=-this.relativeTop_;if(b==d&&c==e)a.push("M "+b+","+c);else{e-=c;d-=b;Blockly.RTL&&(d*=-1);var f=Math.sqrt(e*e+d*d),g=Math.acos(d/f);0>e&&(g=2*Math.PI-g);var h=g+Math.PI/2;h>2*Math.PI&&(h-=2*Math.PI);var k=Math.sin(h),l=Math.cos(h),p=this.getBubbleSize(),h=(p.width+p.height)/Blockly.Bubble.ARROW_THICKNESS,h=Math.min(h,p.width,p.height)/2,p=1-Blockly.Bubble.ANCHOR_RADIUS/f,d=b+p*d,e=c+
-p*e,p=b+h*l,n=c+h*k,b=b-h*l,c=c-h*k,k=g+this.arrow_radians_;k>2*Math.PI&&(k-=2*Math.PI);g=Math.sin(k)*f/Blockly.Bubble.ARROW_BEND;f=Math.cos(k)*f/Blockly.Bubble.ARROW_BEND;a.push("M"+p+","+n);a.push("C"+(p+f)+","+(n+g)+" "+d+","+e+" "+d+","+e);a.push("C"+d+","+e+" "+(b+f)+","+(c+g)+" "+b+","+c)}a.push("z");this.bubbleArrow_.setAttribute("d",a.join(" "))};Blockly.Bubble.prototype.setColour=function(a){this.bubbleBack_.setAttribute("fill",a);this.bubbleArrow_.setAttribute("fill",a)};
-Blockly.Bubble.prototype.dispose=function(){Blockly.Bubble.unbindDragEvents_();goog.dom.removeNode(this.bubbleGroup_);this.shape_=this.content_=this.workspace_=this.bubbleGroup_=null};
-// Copyright 2013 Google Inc.  Apache License 2.0
-Blockly.Icon=function(a){this.block_=a};Blockly.Icon.RADIUS=8;Blockly.Icon.prototype.bubble_=null;Blockly.Icon.prototype.iconX_=0;Blockly.Icon.prototype.iconY_=0;Blockly.Icon.prototype.createIcon_=function(){this.iconGroup_=Blockly.createSvgElement("g",{},null);this.block_.getSvgRoot().appendChild(this.iconGroup_);Blockly.bindEvent_(this.iconGroup_,"mouseup",this,this.iconClick_);this.updateEditable()};
-Blockly.Icon.prototype.dispose=function(){goog.dom.removeNode(this.iconGroup_);this.iconGroup_=null;this.setVisible(!1);this.block_=null};Blockly.Icon.prototype.updateEditable=function(){this.block_.isInFlyout?Blockly.removeClass_(this.iconGroup_,"blocklyIconGroup"):Blockly.addClass_(this.iconGroup_,"blocklyIconGroup")};Blockly.Icon.prototype.isVisible=function(){return!!this.bubble_};Blockly.Icon.prototype.iconClick_=function(a){this.block_.isInFlyout||this.setVisible(!this.isVisible())};
-Blockly.Icon.prototype.updateColour=function(){if(this.isVisible()){var a=Blockly.makeColour(this.block_.getColour());this.bubble_.setColour(a)}};
-Blockly.Icon.prototype.renderIcon=function(a){if(this.block_.isCollapsed())return this.iconGroup_.setAttribute("display","none"),a;this.iconGroup_.setAttribute("display","block");var b=2*Blockly.Icon.RADIUS;Blockly.RTL&&(a-=b);this.iconGroup_.setAttribute("transform","translate("+a+", 5)");this.computeIconLocation();return a=Blockly.RTL?a-Blockly.BlockSvg.SEP_SPACE_X:a+(b+Blockly.BlockSvg.SEP_SPACE_X)};
-Blockly.Icon.prototype.setIconLocation=function(a,b){this.iconX_=a;this.iconY_=b;this.isVisible()&&this.bubble_.setAnchorLocation(a,b)};Blockly.Icon.prototype.computeIconLocation=function(){var a=this.block_.getRelativeToSurfaceXY(),b=Blockly.getRelativeXY_(this.iconGroup_),c=a.x+b.x+Blockly.Icon.RADIUS,a=a.y+b.y+Blockly.Icon.RADIUS;c===this.iconX_&&a===this.iconY_||this.setIconLocation(c,a)};Blockly.Icon.prototype.getIconLocation=function(){return{x:this.iconX_,y:this.iconY_}};
-// Copyright 2011 Google Inc.  Apache License 2.0
-Blockly.Comment=function(a){Blockly.Comment.superClass_.constructor.call(this,a);this.createIcon_()};goog.inherits(Blockly.Comment,Blockly.Icon);Blockly.Comment.prototype.text_="";Blockly.Comment.prototype.width_=160;Blockly.Comment.prototype.height_=80;
-Blockly.Comment.prototype.createIcon_=function(){Blockly.Icon.prototype.createIcon_.call(this);Blockly.createSvgElement("circle",{"class":"blocklyIconShield",r:Blockly.Icon.RADIUS,cx:Blockly.Icon.RADIUS,cy:Blockly.Icon.RADIUS},this.iconGroup_);this.iconMark_=Blockly.createSvgElement("text",{"class":"blocklyIconMark",x:Blockly.Icon.RADIUS,y:2*Blockly.Icon.RADIUS-3},this.iconGroup_);this.iconMark_.appendChild(document.createTextNode("?"))};
-Blockly.Comment.prototype.createEditor_=function(){this.foreignObject_=Blockly.createSvgElement("foreignObject",{x:Blockly.Bubble.BORDER_WIDTH,y:Blockly.Bubble.BORDER_WIDTH},null);var a=document.createElementNS(Blockly.HTML_NS,"body");a.setAttribute("xmlns",Blockly.HTML_NS);a.className="blocklyMinimalBody";this.textarea_=document.createElementNS(Blockly.HTML_NS,"textarea");this.textarea_.className="blocklyCommentTextarea";this.textarea_.setAttribute("dir",Blockly.RTL?"RTL":"LTR");a.appendChild(this.textarea_);
-this.foreignObject_.appendChild(a);Blockly.bindEvent_(this.textarea_,"mouseup",this,this.textareaFocus_);return this.foreignObject_};Blockly.Comment.prototype.updateEditable=function(){this.isVisible()&&(this.setVisible(!1),this.setVisible(!0));Blockly.Icon.prototype.updateEditable.call(this)};
-Blockly.Comment.prototype.resizeBubble_=function(){var a=this.bubble_.getBubbleSize(),b=2*Blockly.Bubble.BORDER_WIDTH;this.foreignObject_.setAttribute("width",a.width-b);this.foreignObject_.setAttribute("height",a.height-b);this.textarea_.style.width=a.width-b-4+"px";this.textarea_.style.height=a.height-b-4+"px"};
-Blockly.Comment.prototype.setVisible=function(a){if(a!=this.isVisible())if(!this.block_.isEditable()&&!this.textarea_||goog.userAgent.IE)Blockly.Warning.prototype.setVisible.call(this,a);else{var b=this.getText(),c=this.getBubbleSize();a?(this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svg_.svgPath_,this.iconX_,this.iconY_,this.width_,this.height_),this.bubble_.registerResizeEvent(this,this.resizeBubble_),this.updateColour(),this.text_=null):(this.bubble_.dispose(),
-this.foreignObject_=this.textarea_=this.bubble_=null);this.setText(b);this.setBubbleSize(c.width,c.height)}};Blockly.Comment.prototype.textareaFocus_=function(a){this.bubble_.promote_();this.textarea_.focus()};Blockly.Comment.prototype.getBubbleSize=function(){return this.isVisible()?this.bubble_.getBubbleSize():{width:this.width_,height:this.height_}};Blockly.Comment.prototype.setBubbleSize=function(a,b){this.textarea_?this.bubble_.setBubbleSize(a,b):(this.width_=a,this.height_=b)};
-Blockly.Comment.prototype.getText=function(){return this.textarea_?this.textarea_.value:this.text_};Blockly.Comment.prototype.setText=function(a){this.textarea_?this.textarea_.value=a:this.text_=a};Blockly.Comment.prototype.dispose=function(){this.block_.comment=null;Blockly.Icon.prototype.dispose.call(this)};
-// Copyright 2011 Google Inc.  Apache License 2.0
-Blockly.Connection=function(a,b){this.sourceBlock_=a;this.targetConnection=null;this.type=b;this.y_=this.x_=0;this.inDB_=!1;this.dbList_=this.sourceBlock_.workspace.connectionDBList};
-Blockly.Connection.prototype.dispose=function(){if(this.targetConnection)throw"Disconnect connection before disposing of it.";this.inDB_&&this.dbList_[this.type].removeConnection_(this);this.inDB_=!1;Blockly.highlightedConnection_==this&&(Blockly.highlightedConnection_=null);Blockly.localConnection_==this&&(Blockly.localConnection_=null)};Blockly.Connection.prototype.isSuperior=function(){return this.type==Blockly.INPUT_VALUE||this.type==Blockly.NEXT_STATEMENT};
-Blockly.Connection.prototype.connect=function(a){if(this.sourceBlock_==a.sourceBlock_)throw"Attempted to connect a block to itself.";if(this.sourceBlock_.workspace!==a.sourceBlock_.workspace)throw"Blocks are on different workspaces.";if(Blockly.OPPOSITE_TYPE[this.type]!=a.type)throw"Attempt to connect incompatible types.";if(this.type==Blockly.INPUT_VALUE||this.type==Blockly.OUTPUT_VALUE){if(this.targetConnection)throw"Source connection already connected (value).";if(a.targetConnection){var b=a.targetBlock();
-b.setParent(null);if(!b.outputConnection)throw"Orphan block does not have an output connection.";for(var c=this.sourceBlock_;c=Blockly.Connection.singleConnection_(c,b);)if(c.targetBlock())c=c.targetBlock();else{c.connect(b.outputConnection);b=null;break}b&&window.setTimeout(function(){b.outputConnection.bumpAwayFrom_(a)},Blockly.BUMP_DELAY)}}else{if(this.targetConnection)throw"Source connection already connected (block).";if(a.targetConnection){if(this.type!=Blockly.PREVIOUS_STATEMENT)throw"Can only do a mid-stack connection with the top of a block.";
-b=a.targetBlock();b.setParent(null);if(!b.previousConnection)throw"Orphan block does not have a previous connection.";for(c=this.sourceBlock_;c.nextConnection;)if(c.nextConnection.targetConnection)c=c.getNextBlock();else{b.previousConnection.checkType_(c.nextConnection)&&(c.nextConnection.connect(b.previousConnection),b=null);break}b&&window.setTimeout(function(){b.previousConnection.bumpAwayFrom_(a)},Blockly.BUMP_DELAY)}}var d;this.isSuperior()?(c=this.sourceBlock_,d=a.sourceBlock_):(c=a.sourceBlock_,
-d=this.sourceBlock_);this.targetConnection=a;a.targetConnection=this;d.setParent(c);c.rendered&&c.svg_.updateDisabled();d.rendered&&d.svg_.updateDisabled();c.rendered&&d.rendered&&(this.type==Blockly.NEXT_STATEMENT||this.type==Blockly.PREVIOUS_STATEMENT?d.render():c.render())};Blockly.Connection.singleConnection_=function(a,b){for(var c=!1,d=0;d<a.inputList.length;d++){var e=a.inputList[d].connection;if(e&&e.type==Blockly.INPUT_VALUE&&b.outputConnection.checkType_(e)){if(c)return null;c=e}}return c};
-Blockly.Connection.prototype.disconnect=function(){var a=this.targetConnection;if(!a)throw"Source connection not connected.";if(a.targetConnection!=this)throw"Target connection not connected to source connection.";this.targetConnection=a.targetConnection=null;var b;this.isSuperior()?(b=this.sourceBlock_,a=a.sourceBlock_):(b=a.sourceBlock_,a=this.sourceBlock_);b.rendered&&b.render();a.rendered&&(a.svg_.updateDisabled(),a.render())};
-Blockly.Connection.prototype.targetBlock=function(){return this.targetConnection?this.targetConnection.sourceBlock_:null};
-Blockly.Connection.prototype.bumpAwayFrom_=function(a){if(0==Blockly.Block.dragMode_){var b=this.sourceBlock_.getRootBlock();if(!b.isInFlyout){var c=!1;if(!b.isMovable()){b=a.sourceBlock_.getRootBlock();if(!b.isMovable())return;a=this;c=!0}b.getSvgRoot().parentNode.appendChild(b.getSvgRoot());var d=a.x_+Blockly.SNAP_RADIUS-this.x_;a=a.y_+Blockly.SNAP_RADIUS-this.y_;c&&(a=-a);Blockly.RTL&&(d=-d);b.moveBy(d,a)}}};
-Blockly.Connection.prototype.moveTo=function(a,b){this.inDB_&&this.dbList_[this.type].removeConnection_(this);this.x_=a;this.y_=b;this.dbList_[this.type].addConnection_(this)};Blockly.Connection.prototype.moveBy=function(a,b){this.moveTo(this.x_+a,this.y_+b)};
-Blockly.Connection.prototype.highlight=function(){var a;this.type==Blockly.INPUT_VALUE||this.type==Blockly.OUTPUT_VALUE?(a=Blockly.RTL?-Blockly.BlockSvg.TAB_WIDTH:Blockly.BlockSvg.TAB_WIDTH,a="m 0,0 v 5 c 0,10 "+-a+",-8 "+-a+",7.5 s "+a+",-2.5 "+a+",7.5 v 5"):a=Blockly.RTL?"m 20,0 h -5 "+Blockly.BlockSvg.NOTCH_PATH_RIGHT+" h -5":"m -20,0 h 5 "+Blockly.BlockSvg.NOTCH_PATH_LEFT+" h 5";var b=this.sourceBlock_.getRelativeToSurfaceXY();Blockly.Connection.highlightedPath_=Blockly.createSvgElement("path",
-{"class":"blocklyHighlightedConnectionPath",d:a,transform:"translate("+(this.x_-b.x)+", "+(this.y_-b.y)+")"},this.sourceBlock_.getSvgRoot())};Blockly.Connection.prototype.unhighlight=function(){goog.dom.removeNode(Blockly.Connection.highlightedPath_);delete Blockly.Connection.highlightedPath_};
-Blockly.Connection.prototype.tighten_=function(){var a=Math.round(this.targetConnection.x_-this.x_),b=Math.round(this.targetConnection.y_-this.y_);if(0!=a||0!=b){var c=this.targetBlock(),d=c.getSvgRoot();if(!d)throw"block is not rendered.";d=Blockly.getRelativeXY_(d);c.getSvgRoot().setAttribute("transform","translate("+(d.x-a)+", "+(d.y-b)+")");c.moveConnections_(-a,-b)}};
-Blockly.Connection.prototype.closest=function(a,b,c){function d(b){var c=e[b];if((c.type==Blockly.OUTPUT_VALUE||c.type==Blockly.PREVIOUS_STATEMENT)&&c.targetConnection||c.type==Blockly.INPUT_VALUE&&c.targetConnection&&!c.targetBlock().isMovable()||!p.checkType_(c))return!0;c=c.sourceBlock_;do{if(l==c)return!0;c=c.getParent()}while(c);var d=f-e[b].x_,c=g-e[b].y_,d=Math.sqrt(d*d+c*c);d<=a&&(k=e[b],a=d);return c<a}if(this.targetConnection)return{connection:null,radius:a};var e=this.dbList_[Blockly.OPPOSITE_TYPE[this.type]],
-f=this.x_+b,g=this.y_+c;b=0;for(var h=c=e.length-2;b<h;)e[h].y_<g?b=h:c=h,h=Math.floor((b+c)/2);c=b=h;var k=null,l=this.sourceBlock_,p=this;if(e.length){for(;0<=b&&d(b);)b--;do c++;while(c<e.length&&d(c))}return{connection:k,radius:a}};Blockly.Connection.prototype.checkType_=function(a){if(!this.check_||!a.check_)return!0;for(var b=0;b<this.check_.length;b++)if(-1!=a.check_.indexOf(this.check_[b]))return!0;return!1};
-Blockly.Connection.prototype.setCheck=function(a){a?(goog.isArray(a)||(a=[a]),this.check_=a,this.targetConnection&&!this.checkType_(this.targetConnection)&&(this.isSuperior()?this.targetBlock().setParent(null):this.sourceBlock_.setParent(null),this.sourceBlock_.bumpNeighbours_())):this.check_=null;return this};
-Blockly.Connection.prototype.neighbours_=function(a){function b(b){var f=d-c[b].x_,g=e-c[b].y_;Math.sqrt(f*f+g*g)<=a&&k.push(c[b]);return g<a}for(var c=this.dbList_[Blockly.OPPOSITE_TYPE[this.type]],d=this.x_,e=this.y_,f=0,g=c.length-2,h=g;f<h;)c[h].y_<e?f=h:g=h,h=Math.floor((f+g)/2);var g=f=h,k=[];if(c.length){for(;0<=f&&b(f);)f--;do g++;while(g<c.length&&b(g))}return k};
-Blockly.Connection.prototype.hideAll=function(){this.inDB_&&this.dbList_[this.type].removeConnection_(this);if(this.targetConnection)for(var a=this.targetBlock().getDescendants(),b=0;b<a.length;b++){for(var c=a[b],d=c.getConnections_(!0),e=0;e<d.length;e++){var f=d[e];f.inDB_&&this.dbList_[f.type].removeConnection_(f)}c=c.getIcons();for(d=0;d<c.length;d++)c[d].setVisible(!1)}};
-Blockly.Connection.prototype.unhideAll=function(){this.inDB_||this.dbList_[this.type].addConnection_(this);var a=[];if(this.type!=Blockly.INPUT_VALUE&&this.type!=Blockly.NEXT_STATEMENT)return a;var b=this.targetBlock();if(b){var c;b.isCollapsed()?(c=[],b.outputConnection&&c.push(b.outputConnection),b.nextConnection&&c.push(b.nextConnection),b.previousConnection&&c.push(b.previousConnection)):c=b.getConnections_(!0);for(var d=0;d<c.length;d++)a.push.apply(a,c[d].unhideAll());0==a.length&&(a[0]=b)}return a};
-Blockly.ConnectionDB=function(){};Blockly.ConnectionDB.prototype=[];Blockly.ConnectionDB.constructor=Blockly.ConnectionDB;Blockly.ConnectionDB.prototype.addConnection_=function(a){if(a.inDB_)throw"Connection already in database.";for(var b=0,c=this.length;b<c;){var d=Math.floor((b+c)/2);if(this[d].y_<a.y_)b=d+1;else if(this[d].y_>a.y_)c=d;else{b=d;break}}this.splice(b,0,a);a.inDB_=!0};
-Blockly.ConnectionDB.prototype.removeConnection_=function(a){if(!a.inDB_)throw"Connection not in database.";a.inDB_=!1;for(var b=0,c=this.length-2,d=c;b<d;)this[d].y_<a.y_?b=d:c=d,d=Math.floor((b+c)/2);for(c=b=d;0<=b&&this[b].y_==a.y_;){if(this[b]==a){this.splice(b,1);return}b--}do{if(this[c]==a){this.splice(c,1);return}c++}while(c<this.length&&this[c].y_==a.y_);throw"Unable to find connection in connectionDB.";};
-Blockly.ConnectionDB.init=function(a){var b=[];b[Blockly.INPUT_VALUE]=new Blockly.ConnectionDB;b[Blockly.OUTPUT_VALUE]=new Blockly.ConnectionDB;b[Blockly.NEXT_STATEMENT]=new Blockly.ConnectionDB;b[Blockly.PREVIOUS_STATEMENT]=new Blockly.ConnectionDB;a.connectionDBList=b};
-// Copyright 2011 Google Inc.  Apache License 2.0
-Blockly.ContextMenu={};Blockly.ContextMenu.currentBlock=null;
-Blockly.ContextMenu.show=function(a,b){Blockly.WidgetDiv.show(Blockly.ContextMenu,null);if(b.length){for(var c=new goog.ui.Menu,d=0,e;e=b[d];d++){var f=new goog.ui.MenuItem(e.text);c.addChild(f,!0);f.setEnabled(e.enabled);e.enabled&&goog.events.listen(f,goog.ui.Component.EventType.ACTION,function(a){return function(){Blockly.doCommand(a)}}(e.callback))}goog.events.listen(c,goog.ui.Component.EventType.ACTION,Blockly.ContextMenu.hide);e=goog.dom.getViewportSize();f=goog.style.getViewportPageOffset(document);
-c.render(Blockly.WidgetDiv.DIV);var g=c.getElement();Blockly.addClass_(g,"blocklyContextMenu");var h=goog.style.getSize(g),d=a.clientX+f.x,k=a.clientY+f.y;a.clientY+h.height>=e.height&&(k-=h.height);Blockly.RTL?h.width>=a.clientX&&(d+=h.width):a.clientX+h.width>=e.width&&(d-=h.width);Blockly.WidgetDiv.position(d,k,e,f);c.setAllowAutoFocus(!0);setTimeout(function(){g.focus()},1);Blockly.ContextMenu.currentBlock=null}else Blockly.ContextMenu.hide()};
-Blockly.ContextMenu.hide=function(){Blockly.WidgetDiv.hideIfOwner(Blockly.ContextMenu);Blockly.ContextMenu.currentBlock=null};Blockly.ContextMenu.callbackFactory=function(a,b){return function(){var c=Blockly.Xml.domToBlock(a.workspace,b),d=a.getRelativeToSurfaceXY();d.x=Blockly.RTL?d.x-Blockly.SNAP_RADIUS:d.x+Blockly.SNAP_RADIUS;d.y+=2*Blockly.SNAP_RADIUS;c.moveBy(d.x,d.y);c.select()}};
-// Copyright 2012 Google Inc.  Apache License 2.0
-Blockly.Field=function(a){this.sourceBlock_=null;this.fieldGroup_=Blockly.createSvgElement("g",{},null);this.borderRect_=Blockly.createSvgElement("rect",{rx:4,ry:4,x:-Blockly.BlockSvg.SEP_SPACE_X/2,y:-12,height:16},this.fieldGroup_);this.textElement_=Blockly.createSvgElement("text",{"class":"blocklyText"},this.fieldGroup_);this.size_={height:25,width:0};this.setText(a);this.visible_=!0};Blockly.Field.prototype.clone=function(){goog.asserts.fail("There should never be an instance of Field, only its derived classes.")};
-Blockly.Field.NBSP="\u00a0";Blockly.Field.prototype.EDITABLE=!0;Blockly.Field.prototype.init=function(a){if(this.sourceBlock_)throw"Field has already been initialized once.";this.sourceBlock_=a;this.updateEditable();a.getSvgRoot().appendChild(this.fieldGroup_);this.mouseUpWrapper_=Blockly.bindEvent_(this.fieldGroup_,"mouseup",this,this.onMouseUp_);this.setText(null)};
-Blockly.Field.prototype.dispose=function(){this.mouseUpWrapper_&&(Blockly.unbindEvent_(this.mouseUpWrapper_),this.mouseUpWrapper_=null);this.sourceBlock_=null;goog.dom.removeNode(this.fieldGroup_);this.borderRect_=this.textElement_=this.fieldGroup_=null};
-Blockly.Field.prototype.updateEditable=function(){this.EDITABLE&&(this.sourceBlock_.isEditable()?(Blockly.addClass_(this.fieldGroup_,"blocklyEditableText"),Blockly.removeClass_(this.fieldGroup_,"blocklyNoNEditableText"),this.fieldGroup_.style.cursor=this.CURSOR):(Blockly.addClass_(this.fieldGroup_,"blocklyNonEditableText"),Blockly.removeClass_(this.fieldGroup_,"blocklyEditableText"),this.fieldGroup_.style.cursor=""))};Blockly.Field.prototype.isVisible=function(){return this.visible_};
-Blockly.Field.prototype.setVisible=function(a){this.visible_=a;this.getRootElement().style.display=a?"block":"none";this.render_()};Blockly.Field.prototype.getRootElement=function(){return this.fieldGroup_};Blockly.Field.prototype.render_=function(){try{var a=this.textElement_.getComputedTextLength()}catch(b){a=8*this.textElement_.childNodes[0].length}this.borderRect_&&this.borderRect_.setAttribute("width",a+Blockly.BlockSvg.SEP_SPACE_X);this.size_.width=a};
-Blockly.Field.prototype.getSize=function(){this.size_.width||this.render_();return this.size_};Blockly.Field.prototype.getText=function(){return this.text_};Blockly.Field.prototype.setText=function(a){null!==a&&a!==this.text_&&(this.text_=a,this.updateTextNode_(),this.sourceBlock_&&this.sourceBlock_.rendered&&(this.sourceBlock_.render(),this.sourceBlock_.bumpNeighbours_(),this.sourceBlock_.workspace.fireChangeEvent()))};
-Blockly.Field.prototype.updateTextNode_=function(){var a=this.text_;goog.dom.removeChildren(this.textElement_);a=a.replace(/\s/g,Blockly.Field.NBSP);Blockly.RTL&&a&&(a+="\u200f");a||(a=Blockly.Field.NBSP);a=document.createTextNode(a);this.textElement_.appendChild(a);this.size_.width=0};Blockly.Field.prototype.getValue=function(){return this.getText()};Blockly.Field.prototype.setValue=function(a){this.setText(a)};
-Blockly.Field.prototype.onMouseUp_=function(a){if(!goog.userAgent.IPHONE&&!goog.userAgent.IPAD||0===a.layerX||0===a.layerY)Blockly.isRightButton(a)||2!=Blockly.Block.dragMode_&&this.sourceBlock_.isEditable()&&this.showEditor_()};Blockly.Field.prototype.setTooltip=function(a){};
-// Copyright 2011 Google Inc.  Apache License 2.0
-Blockly.Tooltip={};Blockly.Tooltip.visible=!1;Blockly.Tooltip.LIMIT=50;Blockly.Tooltip.mouseOutPid_=0;Blockly.Tooltip.showPid_=0;Blockly.Tooltip.lastXY_={x:0,y:0};Blockly.Tooltip.element_=null;Blockly.Tooltip.poisonedElement_=null;Blockly.Tooltip.svgGroup_=null;Blockly.Tooltip.svgText_=null;Blockly.Tooltip.svgBackground_=null;Blockly.Tooltip.svgShadow_=null;Blockly.Tooltip.OFFSET_X=0;Blockly.Tooltip.OFFSET_Y=10;Blockly.Tooltip.RADIUS_OK=10;Blockly.Tooltip.HOVER_MS=1E3;Blockly.Tooltip.MARGINS=5;
-Blockly.Tooltip.createDom=function(){var a=Blockly.createSvgElement("g",{"class":"blocklyHidden"},null);Blockly.Tooltip.svgGroup_=a;Blockly.Tooltip.svgShadow_=Blockly.createSvgElement("rect",{"class":"blocklyTooltipShadow",x:2,y:2},a);Blockly.Tooltip.svgBackground_=Blockly.createSvgElement("rect",{"class":"blocklyTooltipBackground"},a);Blockly.Tooltip.svgText_=Blockly.createSvgElement("text",{"class":"blocklyTooltipText"},a);return a};
-Blockly.Tooltip.bindMouseEvents=function(a){Blockly.bindEvent_(a,"mouseover",null,Blockly.Tooltip.onMouseOver_);Blockly.bindEvent_(a,"mouseout",null,Blockly.Tooltip.onMouseOut_);Blockly.bindEvent_(a,"mousemove",null,Blockly.Tooltip.onMouseMove_)};Blockly.Tooltip.onMouseOver_=function(a){for(a=a.target;!goog.isString(a.tooltip)&&!goog.isFunction(a.tooltip);)a=a.tooltip;Blockly.Tooltip.element_!=a&&(Blockly.Tooltip.hide(),Blockly.Tooltip.poisonedElement_=null,Blockly.Tooltip.element_=a);window.clearTimeout(Blockly.Tooltip.mouseOutPid_)};
-Blockly.Tooltip.onMouseOut_=function(a){Blockly.Tooltip.mouseOutPid_=window.setTimeout(function(){Blockly.Tooltip.element_=null;Blockly.Tooltip.poisonedElement_=null;Blockly.Tooltip.hide()},1);window.clearTimeout(Blockly.Tooltip.showPid_)};
-Blockly.Tooltip.onMouseMove_=function(a){if(Blockly.Tooltip.element_&&Blockly.Tooltip.element_.tooltip&&0==Blockly.Block.dragMode_&&!Blockly.WidgetDiv.isVisible())if(Blockly.Tooltip.visible){a=Blockly.mouseToSvg(a);var b=Blockly.Tooltip.lastXY_.y-a.y;Math.sqrt(Math.pow(Blockly.Tooltip.lastXY_.x-a.x,2)+Math.pow(b,2))>Blockly.Tooltip.RADIUS_OK&&Blockly.Tooltip.hide()}else Blockly.Tooltip.poisonedElement_!=Blockly.Tooltip.element_&&(window.clearTimeout(Blockly.Tooltip.showPid_),Blockly.Tooltip.lastXY_=
-Blockly.mouseToSvg(a),Blockly.Tooltip.showPid_=window.setTimeout(Blockly.Tooltip.show_,Blockly.Tooltip.HOVER_MS))};Blockly.Tooltip.hide=function(){Blockly.Tooltip.visible&&(Blockly.Tooltip.visible=!1,Blockly.Tooltip.svgGroup_&&(Blockly.Tooltip.svgGroup_.style.display="none"));window.clearTimeout(Blockly.Tooltip.showPid_)};
-Blockly.Tooltip.show_=function(){Blockly.Tooltip.poisonedElement_=Blockly.Tooltip.element_;if(Blockly.Tooltip.svgGroup_){goog.dom.removeChildren(Blockly.Tooltip.svgText_);var a=Blockly.Tooltip.element_.tooltip;goog.isFunction(a)&&(a=a());for(var a=Blockly.Tooltip.wrap_(a,Blockly.Tooltip.LIMIT),a=a.split("\n"),b=0;b<a.length;b++){var c=Blockly.createSvgElement("tspan",{dy:"1em",x:Blockly.Tooltip.MARGINS},Blockly.Tooltip.svgText_),d=document.createTextNode(a[b]);c.appendChild(d)}Blockly.Tooltip.visible=
-!0;Blockly.Tooltip.svgGroup_.style.display="block";a=Blockly.Tooltip.svgText_.getBBox();b=2*Blockly.Tooltip.MARGINS+a.width;c=a.height;Blockly.Tooltip.svgBackground_.setAttribute("width",b);Blockly.Tooltip.svgBackground_.setAttribute("height",c);Blockly.Tooltip.svgShadow_.setAttribute("width",b);Blockly.Tooltip.svgShadow_.setAttribute("height",c);if(Blockly.RTL)for(var c=a.width,d=0,e;e=Blockly.Tooltip.svgText_.childNodes[d];d++)e.setAttribute("text-anchor","end"),e.setAttribute("x",c+Blockly.Tooltip.MARGINS);
-c=Blockly.Tooltip.lastXY_.x;c=Blockly.RTL?c-(Blockly.Tooltip.OFFSET_X+b):c+Blockly.Tooltip.OFFSET_X;b=Blockly.Tooltip.lastXY_.y+Blockly.Tooltip.OFFSET_Y;d=Blockly.svgSize();b+a.height>d.height&&(b-=a.height+2*Blockly.Tooltip.OFFSET_Y);Blockly.RTL?c=Math.max(Blockly.Tooltip.MARGINS,c):c+a.width>d.width-2*Blockly.Tooltip.MARGINS&&(c=d.width-a.width-2*Blockly.Tooltip.MARGINS);Blockly.Tooltip.svgGroup_.setAttribute("transform","translate("+c+","+b+")")}};
-Blockly.Tooltip.wrap_=function(a,b){if(a.length<=b)return a;for(var c=a.trim().split(/\s+/),d=0;d<c.length;d++)c[d].length>b&&(b=c[d].length);var e,d=-Infinity,f,g=1;do{e=d;f=a;for(var h=[],k=c.length/g,l=1,d=0;d<c.length-1;d++)l<(d+1.5)/k?(l++,h[d]=!0):h[d]=!1;h=Blockly.Tooltip.wrapMutate_(c,h,b);d=Blockly.Tooltip.wrapScore_(c,h,b);a=Blockly.Tooltip.wrapToText_(c,h);g++}while(d>e);return f};
-Blockly.Tooltip.wrapScore_=function(a,b,c){for(var d=[0],e=[],f=0;f<a.length;f++)d[d.length-1]+=a[f].length,!0===b[f]?(d.push(0),e.push(a[f].charAt(a[f].length-1))):!1===b[f]&&d[d.length-1]++;a=Math.max.apply(Math,d);for(f=b=0;f<d.length;f++)b-=2*Math.pow(Math.abs(c-d[f]),1.5),b-=Math.pow(a-d[f],1.5),-1!=".?!".indexOf(e[f])?b+=c/3:-1!=",;)]}".indexOf(e[f])&&(b+=c/4);1<d.length&&d[d.length-1]<=d[d.length-2]&&(b+=.5);return b};
-Blockly.Tooltip.wrapMutate_=function(a,b,c){for(var d=Blockly.Tooltip.wrapScore_(a,b,c),e,f=0;f<b.length-1;f++)if(b[f]!=b[f+1]){var g=[].concat(b);g[f]=!g[f];g[f+1]=!g[f+1];var h=Blockly.Tooltip.wrapScore_(a,g,c);h>d&&(d=h,e=g)}return e?Blockly.Tooltip.wrapMutate_(a,e,c):b};Blockly.Tooltip.wrapToText_=function(a,b){for(var c=[],d=0;d<a.length;d++)c.push(a[d]),void 0!==b[d]&&c.push(b[d]?"\n":" ");return c.join("")};
-// Copyright 2012 Google Inc.  Apache License 2.0
-Blockly.FieldLabel=function(a){this.sourceBlock_=null;this.textElement_=Blockly.createSvgElement("text",{"class":"blocklyText"},null);this.size_={height:25,width:0};this.setText(a)};goog.inherits(Blockly.FieldLabel,Blockly.Field);Blockly.FieldLabel.prototype.clone=function(){return new Blockly.FieldLabel(this.getText())};Blockly.FieldLabel.prototype.EDITABLE=!1;
-Blockly.FieldLabel.prototype.init=function(a){if(this.sourceBlock_)throw"Text has already been initialized once.";this.sourceBlock_=a;a.getSvgRoot().appendChild(this.textElement_);this.textElement_.tooltip=this.sourceBlock_;Blockly.Tooltip.bindMouseEvents(this.textElement_)};Blockly.FieldLabel.prototype.dispose=function(){goog.dom.removeNode(this.textElement_);this.textElement_=null};Blockly.FieldLabel.prototype.getRootElement=function(){return this.textElement_};
-Blockly.FieldLabel.prototype.setTooltip=function(a){this.textElement_.tooltip=a};
-// Copyright 2012 Google Inc.  Apache License 2.0
-Blockly.Input=function(a,b,c,d){this.type=a;this.name=b;this.sourceBlock_=c;this.connection=d;this.fieldRow=[];this.align=Blockly.ALIGN_LEFT;this.visible_=!0};
-Blockly.Input.prototype.appendField=function(a,b){if(!a&&!b)return this;goog.isString(a)&&(a=new Blockly.FieldLabel(a));this.sourceBlock_.svg_&&a.init(this.sourceBlock_);a.name=b;a.prefixField&&this.appendField(a.prefixField);this.fieldRow.push(a);a.suffixField&&this.appendField(a.suffixField);this.sourceBlock_.rendered&&(this.sourceBlock_.render(),this.sourceBlock_.bumpNeighbours_());return this};
-Blockly.Input.prototype.appendTitle=function(a,b){console.log("Deprecated call to appendTitle, use appendField instead.");return this.appendField(a,b)};Blockly.Input.prototype.removeField=function(a){for(var b=0,c;c=this.fieldRow[b];b++)if(c.name===a){c.dispose();this.fieldRow.splice(b,1);this.sourceBlock_.rendered&&(this.sourceBlock_.render(),this.sourceBlock_.bumpNeighbours_());return}goog.asserts.fail('Field "%s" not found.',a)};Blockly.Input.prototype.isVisible=function(){return this.visible_};
-Blockly.Input.prototype.setVisible=function(a){var b=[];if(this.visible_==a)return b;for(var c=(this.visible_=a)?"block":"none",d=0,e;e=this.fieldRow[d];d++)e.setVisible(a);this.connection&&(a?b=this.connection.unhideAll():this.connection.hideAll(),d=this.connection.targetBlock())&&(d.svg_.getRootElement().style.display=c,a||(d.rendered=!1));return b};Blockly.Input.prototype.setCheck=function(a){if(!this.connection)throw"This input does not have a connection.";this.connection.setCheck(a);return this};
-Blockly.Input.prototype.setAlign=function(a){this.align=a;this.sourceBlock_.rendered&&this.sourceBlock_.render();return this};Blockly.Input.prototype.init=function(){for(var a=0;a<this.fieldRow.length;a++)this.fieldRow[a].init(this.sourceBlock_)};Blockly.Input.prototype.dispose=function(){for(var a=0,b;b=this.fieldRow[a];a++)b.dispose();this.connection&&this.connection.dispose();this.sourceBlock_=null};
-// Copyright 2013 Google Inc.  Apache License 2.0
-Blockly.Msg={};
+Blockly.Xml.domToWorkspace=function(a,b){var c;Blockly.RTL&&(c=a.getWidth());for(var d=0,e;e=b.childNodes[d];d++)if("block"==e.nodeName.toLowerCase()){var f=Blockly.Xml.domToBlock(a,e),g=parseInt(e.getAttribute("x"),10);e=parseInt(e.getAttribute("y"),10);isNaN(g)||isNaN(e)||f.moveBy(Blockly.RTL?c-g:g,e)}};
+Blockly.Xml.domToBlock=function(a,b,c){var d=null,e=b.getAttribute("type");if(!e)throw"Block type unspecified: \n"+b.outerHTML;var f=b.getAttribute("id");if(c&&f){d=Blockly.Block.getById(f,a);if(!d)throw"Couldn't get Block with id: "+f;f=d.getParent();d.workspace&&d.dispose(!0,!1,!0);d.fill(a,e);d.parent_=f}else d=Blockly.Block.obtain(a,e);d.initSvg&&d.initSvg();(f=b.getAttribute("inline"))&&d.setInputsInline("true"==f);(f=b.getAttribute("disabled"))&&d.setDisabled("true"==f);(f=b.getAttribute("deletable"))&&
+d.setDeletable("true"==f);(f=b.getAttribute("movable"))&&d.setMovable("true"==f);(f=b.getAttribute("editable"))&&d.setEditable("true"==f);for(var g=null,f=0,h;h=b.childNodes[f];f++)if(3!=h.nodeType||!h.data.match(/^\s*$/)){for(var g=null,k=0,l;l=h.childNodes[k];k++)3==l.nodeType&&l.data.match(/^\s*$/)||(g=l);k=h.getAttribute("name");switch(h.nodeName.toLowerCase()){case "mutation":d.domToMutation&&(d.domToMutation(h),d.initSvg&&d.initSvg());break;case "comment":d.setCommentText(h.textContent);var p=
+h.getAttribute("pinned");p&&setTimeout(function(){d.comment&&d.comment.setVisible&&d.comment.setVisible("true"==p)},1);g=parseInt(h.getAttribute("w"),10);h=parseInt(h.getAttribute("h"),10);!isNaN(g)&&!isNaN(h)&&d.comment&&d.comment.setVisible&&d.comment.setBubbleSize(g,h);break;case "title":case "field":d.setFieldValue(h.textContent,k);break;case "value":case "statement":h=d.getInput(k);if(!h)throw"Input "+k+" does not exist in block "+e;if(g&&"block"==g.nodeName.toLowerCase())if(g=Blockly.Xml.domToBlock(a,
+g,c),g.outputConnection)h.connection.connect(g.outputConnection);else if(g.previousConnection)h.connection.connect(g.previousConnection);else throw"Child block does not have output or previous statement.";break;case "next":if(g&&"block"==g.nodeName.toLowerCase()){if(!d.nextConnection)throw"Next statement does not exist.";if(d.nextConnection.targetConnection)throw"Next statement is already connected.";g=Blockly.Xml.domToBlock(a,g,c);if(!g.previousConnection)throw"Next block does not have previous statement.";
+d.nextConnection.connect(g.previousConnection)}break;default:console.log("Ignoring unknown tag: "+h.nodeName)}}(b=b.getAttribute("collapsed"))&&d.setCollapsed("true"==b);a.rendered&&((a=d.getNextBlock())?a.render():d.render());return d};Blockly.Xml.deleteNext=function(a){for(var b=0,c;c=a.childNodes[b];b++)if("next"==c.nodeName.toLowerCase()){a.removeChild(c);break}};this.Blockly||(this.Blockly={});this.Blockly.Xml||(this.Blockly.Xml={});this.Blockly.Xml.domToText=Blockly.Xml.domToText;
+this.Blockly.Xml.domToWorkspace=Blockly.Xml.domToWorkspace;this.Blockly.Xml.textToDom=Blockly.Xml.textToDom;this.Blockly.Xml.workspaceToDom=Blockly.Xml.workspaceToDom;
+// Copyright 2014 Google Inc.  Apache License 2.0
+Blockly.WorkspaceSvg=function(a,b){Blockly.WorkspaceSvg.superClass_.constructor.call(this);this.getMetrics=a;this.setMetrics=b;Blockly.ConnectionDB.init(this)};goog.inherits(Blockly.WorkspaceSvg,Blockly.Workspace);Blockly.WorkspaceSvg.prototype.rendered=!0;Blockly.WorkspaceSvg.prototype.isFlyout=!1;Blockly.WorkspaceSvg.prototype.dragMode=!1;Blockly.WorkspaceSvg.prototype.scrollX=0;Blockly.WorkspaceSvg.prototype.scrollY=0;Blockly.WorkspaceSvg.prototype.trashcan=null;
+Blockly.WorkspaceSvg.prototype.fireChangeEventPid_=null;Blockly.WorkspaceSvg.prototype.scrollbar=null;Blockly.WorkspaceSvg.prototype.createDom=function(){this.svgGroup_=Blockly.createSvgElement("g",{},null);this.svgBlockCanvas_=Blockly.createSvgElement("g",{},this.svgGroup_);this.svgBubbleCanvas_=Blockly.createSvgElement("g",{},this.svgGroup_);this.fireChangeEvent();return this.svgGroup_};
+Blockly.WorkspaceSvg.prototype.dispose=function(){this.rendered=!1;Blockly.WorkspaceSvg.superClass_.dispose.call(this);this.svgGroup_&&(goog.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.svgBubbleCanvas_=this.svgBlockCanvas_=null;this.flyout_&&(this.flyout_.dispose(),this.flyout_=null);this.trashcan&&(this.trashcan.dispose(),this.trashcan=null)};
+Blockly.WorkspaceSvg.prototype.addTrashcan=function(){if(Blockly.hasTrashcan&&!Blockly.readOnly){this.trashcan=new Blockly.Trashcan(this);var a=this.trashcan.createDom();this.svgGroup_.insertBefore(a,this.svgBlockCanvas_);this.trashcan.init()}};Blockly.WorkspaceSvg.prototype.getCanvas=function(){return this.svgBlockCanvas_};Blockly.WorkspaceSvg.prototype.getBubbleCanvas=function(){return this.svgBubbleCanvas_};
+Blockly.WorkspaceSvg.prototype.addTopBlock=function(a){Blockly.WorkspaceSvg.superClass_.addTopBlock.call(this,a);Blockly.Realtime.isEnabled()&&this==Blockly.mainWorkspace&&Blockly.Realtime.addTopBlock(a)};Blockly.WorkspaceSvg.prototype.removeTopBlock=function(a){Blockly.WorkspaceSvg.superClass_.removeTopBlock.call(this,a);Blockly.Realtime.isEnabled()&&this==Blockly.mainWorkspace&&Blockly.Realtime.removeTopBlock(a)};Blockly.WorkspaceSvg.prototype.clear=function(){Blockly.hideChaff();Blockly.WorkspaceSvg.superClass_.clear.call(this)};
+Blockly.WorkspaceSvg.prototype.getWidth=function(){return this.getMetrics().viewWidth};Blockly.WorkspaceSvg.prototype.render=function(){for(var a=this.getAllBlocks(),b=0,c;c=a[b];b++)c.getChildren().length||c.render()};Blockly.WorkspaceSvg.prototype.traceOn=function(a){this.traceOn_=a;this.traceWrapper_&&(Blockly.unbindEvent_(this.traceWrapper_),this.traceWrapper_=null);a&&(this.traceWrapper_=Blockly.bindEvent_(this.svgBlockCanvas_,"blocklySelectChange",this,function(){this.traceOn_=!1}))};
+Blockly.WorkspaceSvg.prototype.highlightBlock=function(a){this.traceOn_&&0!=Blockly.dragMode_&&this.traceOn(!1);if(this.traceOn_){var b=null;if(a&&(b=this.getBlockById(a),!b))return;this.traceOn(!1);b?b.select():Blockly.selected&&Blockly.selected.unselect();var c=this;setTimeout(function(){c.traceOn(!0)},1)}};
+Blockly.WorkspaceSvg.prototype.fireChangeEvent=function(){if(this.rendered){this.fireChangeEventPid_&&window.clearTimeout(this.fireChangeEventPid_);var a=this.svgBlockCanvas_;a&&(this.fireChangeEventPid_=window.setTimeout(function(){Blockly.fireUiEvent(a,"blocklyWorkspaceChange")},0))}};
+Blockly.WorkspaceSvg.prototype.paste=function(a){if(!(a.getElementsByTagName("block").length>=this.remainingCapacity())){var b=Blockly.Xml.domToBlock(this,a),c=parseInt(a.getAttribute("x"),10);a=parseInt(a.getAttribute("y"),10);if(!isNaN(c)&&!isNaN(a)){Blockly.RTL&&(c=-c);do for(var d=!1,e=this.getAllBlocks(),f=0,g;g=e[f];f++)g=g.getRelativeToSurfaceXY(),1>=Math.abs(c-g.x)&&1>=Math.abs(a-g.y)&&(c=Blockly.RTL?c-Blockly.SNAP_RADIUS:c+Blockly.SNAP_RADIUS,a+=2*Blockly.SNAP_RADIUS,d=!0);while(d);b.moveBy(c,
+a)}b.select()}};Blockly.WorkspaceSvg.prototype.recordDeleteAreas=function(){this.deleteAreaTrash_=this.trashcan?this.trashcan.getRect():null;this.deleteAreaToolbox_=this.flyout_?this.flyout_.getRect():this.toolbox_?this.toolbox_.getRect():null};
+Blockly.WorkspaceSvg.prototype.isDeleteArea=function(a){a=Blockly.mouseToSvg(a);a=new goog.math.Coordinate(a.x,a.y);if(this.deleteAreaTrash_){if(this.deleteAreaTrash_.contains(a))return this.trashcan.setOpen_(!0),Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE),!0;this.trashcan.setOpen_(!1)}if(this.deleteAreaToolbox_&&this.deleteAreaToolbox_.contains(a))return Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE),!0;Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);return!1};
+Blockly.WorkspaceSvg.prototype.clear=Blockly.WorkspaceSvg.prototype.clear;
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.Mutator=function(a){Blockly.Mutator.superClass_.constructor.call(this,null);this.quarkXml_=[];for(var b=0;b<a.length;b++){var c=goog.dom.createDom("block",{type:a[b]});this.quarkXml_[b]=c}};goog.inherits(Blockly.Mutator,Blockly.Icon);Blockly.Mutator.prototype.workspaceWidth_=0;Blockly.Mutator.prototype.workspaceHeight_=0;
-Blockly.Mutator.prototype.createIcon=function(){Blockly.Icon.prototype.createIcon_.call(this);var a=Blockly.Icon.RADIUS/2;Blockly.createSvgElement("rect",{"class":"blocklyIconShield",width:4*a,height:4*a,rx:a,ry:a},this.iconGroup_);this.iconMark_=Blockly.createSvgElement("text",{"class":"blocklyIconMark",x:Blockly.Icon.RADIUS,y:2*Blockly.Icon.RADIUS-4},this.iconGroup_);this.iconMark_.appendChild(document.createTextNode("\u2605"))};
+Blockly.Mutator.prototype.createIcon=function(){if(!this.iconMark_){Blockly.Icon.prototype.createIcon_.call(this);var a=Blockly.Icon.RADIUS/2;Blockly.createSvgElement("rect",{"class":"blocklyIconShield",width:4*a,height:4*a,rx:a,ry:a},this.iconGroup_);this.iconMark_=Blockly.createSvgElement("text",{"class":"blocklyIconMark",x:Blockly.Icon.RADIUS,y:2*Blockly.Icon.RADIUS-4},this.iconGroup_);this.iconMark_.appendChild(document.createTextNode("\u2605"))}};
 Blockly.Mutator.prototype.iconClick_=function(a){this.block_.isEditable()&&Blockly.Icon.prototype.iconClick_.call(this,a)};
-Blockly.Mutator.prototype.createEditor_=function(){this.svgDialog_=Blockly.createSvgElement("svg",{x:Blockly.Bubble.BORDER_WIDTH,y:Blockly.Bubble.BORDER_WIDTH},null);Blockly.createSvgElement("rect",{"class":"blocklyMutatorBackground",height:"100%",width:"100%"},this.svgDialog_);var a=this;this.workspace_=new Blockly.Workspace(function(){return a.getFlyoutMetrics_()},null);this.workspace_.flyout_=new Blockly.Flyout;this.workspace_.flyout_.autoClose=!1;this.svgDialog_.appendChild(this.workspace_.flyout_.createDom());
+Blockly.Mutator.prototype.createEditor_=function(){this.svgDialog_=Blockly.createSvgElement("svg",{x:Blockly.Bubble.BORDER_WIDTH,y:Blockly.Bubble.BORDER_WIDTH},null);Blockly.createSvgElement("rect",{"class":"blocklyMutatorBackground",height:"100%",width:"100%"},this.svgDialog_);var a=this;this.workspace_=new Blockly.WorkspaceSvg(function(){return a.getFlyoutMetrics_()},null);this.workspace_.flyout_=new Blockly.Flyout;this.workspace_.flyout_.autoClose=!1;this.svgDialog_.appendChild(this.workspace_.flyout_.createDom());
 this.svgDialog_.appendChild(this.workspace_.createDom());return this.svgDialog_};Blockly.Mutator.prototype.updateEditable=function(){this.block_.isEditable()?Blockly.Icon.prototype.updateEditable.call(this):(this.setVisible(!1),Blockly.removeClass_(this.iconGroup_,"blocklyIconGroup"))};
 Blockly.Mutator.prototype.resizeBubble_=function(){var a=2*Blockly.Bubble.BORDER_WIDTH,b=this.workspace_.getCanvas().getBBox(),c=this.workspace_.flyout_.getMetrics_(),d;d=Blockly.RTL?-b.x:b.width+b.x;b=Math.max(b.height+3*a,c.contentHeight+20);d+=3*a;if(Math.abs(this.workspaceWidth_-d)>a||Math.abs(this.workspaceHeight_-b)>a)this.workspaceWidth_=d,this.workspaceHeight_=b,this.bubble_.setBubbleSize(d+a,b+a),this.svgDialog_.setAttribute("width",this.workspaceWidth_),this.svgDialog_.setAttribute("height",
 this.workspaceHeight_);Blockly.RTL&&(a="translate("+this.workspaceWidth_+",0)",this.workspace_.getCanvas().setAttribute("transform",a))};
-Blockly.Mutator.prototype.setVisible=function(a){if(a!=this.isVisible())if(a){this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svg_.svgPath_,this.iconX_,this.iconY_,null,null);var b=this;this.workspace_.flyout_.init(this.workspace_);this.workspace_.flyout_.show(this.quarkXml_);this.rootBlock_=this.block_.decompose(this.workspace_);a=this.rootBlock_.getDescendants();for(var c=0,d;d=a[c];c++)d.render();this.rootBlock_.setMovable(!1);this.rootBlock_.setDeletable(!1);
+Blockly.Mutator.prototype.setVisible=function(a){if(a!=this.isVisible())if(a){this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconX_,this.iconY_,null,null);var b=this;this.workspace_.flyout_.init(this.workspace_);this.workspace_.flyout_.show(this.quarkXml_);this.rootBlock_=this.block_.decompose(this.workspace_);a=this.rootBlock_.getDescendants();for(var c=0,d;d=a[c];c++)d.render();this.rootBlock_.setMovable(!1);this.rootBlock_.setDeletable(!1);
 a=2*this.workspace_.flyout_.CORNER_RADIUS;c=this.workspace_.flyout_.width_+a;Blockly.RTL&&(c=-c);this.rootBlock_.moveBy(c,a);this.block_.saveConnections&&(this.block_.saveConnections(this.rootBlock_),this.sourceListener_=Blockly.bindEvent_(this.block_.workspace.getCanvas(),"blocklyWorkspaceChange",this.block_,function(){b.block_.saveConnections(b.rootBlock_)}));this.resizeBubble_();Blockly.bindEvent_(this.workspace_.getCanvas(),"blocklyWorkspaceChange",this.block_,function(){b.workspaceChanged_()});
 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_&&(Blockly.unbindEvent_(this.sourceListener_),this.sourceListener_=null)};
-Blockly.Mutator.prototype.workspaceChanged_=function(){if(0==Blockly.Block.dragMode_)for(var a=this.workspace_.getTopBlocks(!1),b=0,c;c=a[b];b++){var d=c.getRelativeToSurfaceXY(),e=c.getHeightWidth();20>d.y+e.height&&c.moveBy(0,20-e.height-d.y)}this.rootBlock_.workspace==this.workspace_&&(a=this.block_.rendered,this.block_.rendered=!1,this.block_.compose(this.rootBlock_),this.block_.rendered=a,this.block_.rendered&&this.block_.render(),this.resizeBubble_(),this.block_.workspace.fireChangeEvent())};
+Blockly.Mutator.prototype.workspaceChanged_=function(){if(0==Blockly.dragMode_)for(var a=this.workspace_.getTopBlocks(!1),b=0,c;c=a[b];b++){var d=c.getRelativeToSurfaceXY(),e=c.getHeightWidth();20>d.y+e.height&&c.moveBy(0,20-e.height-d.y)}this.rootBlock_.workspace==this.workspace_&&(a=this.block_.rendered,this.block_.rendered=!1,this.block_.compose(this.rootBlock_),this.block_.rendered=a,this.block_.initSvg(),this.block_.rendered&&this.block_.render(),this.resizeBubble_(),this.block_.workspace.fireChangeEvent())};
 Blockly.Mutator.prototype.getFlyoutMetrics_=function(){var a=0;Blockly.RTL&&(a+=this.workspaceWidth_);return{viewHeight:this.workspaceHeight_,viewWidth:0,absoluteTop:0,absoluteLeft:a}};Blockly.Mutator.prototype.dispose=function(){this.block_.mutator=null;Blockly.Icon.prototype.dispose.call(this)};
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.Warning=function(a){Blockly.Warning.superClass_.constructor.call(this,a);this.createIcon_()};goog.inherits(Blockly.Warning,Blockly.Icon);Blockly.Warning.textToDom_=function(a){var b=Blockly.createSvgElement("text",{"class":"blocklyText blocklyBubbleText",y:Blockly.Bubble.BORDER_WIDTH},null);a=a.split("\n");for(var c=0;c<a.length;c++){var d=Blockly.createSvgElement("tspan",{dy:"1em",x:Blockly.Bubble.BORDER_WIDTH},b),e=document.createTextNode(a[c]);d.appendChild(e)}return b};
 Blockly.Warning.prototype.text_="";Blockly.Warning.prototype.createIcon_=function(){Blockly.Icon.prototype.createIcon_.call(this);Blockly.createSvgElement("path",{"class":"blocklyIconShield",d:"M 2,15 Q -1,15 0.5,12 L 6.5,1.7 Q 8,-1 9.5,1.7 L 15.5,12 Q 17,15 14,15 z"},this.iconGroup_);this.iconMark_=Blockly.createSvgElement("text",{"class":"blocklyIconMark",x:Blockly.Icon.RADIUS,y:2*Blockly.Icon.RADIUS-3},this.iconGroup_);this.iconMark_.appendChild(document.createTextNode("!"))};
-Blockly.Warning.prototype.setVisible=function(a){if(a!=this.isVisible())if(a){a=Blockly.Warning.textToDom_(this.text_);this.bubble_=new Blockly.Bubble(this.block_.workspace,a,this.block_.svg_.svgPath_,this.iconX_,this.iconY_,null,null);if(Blockly.RTL)for(var b=a.getBBox().width,c=0,d;d=a.childNodes[c];c++)d.setAttribute("text-anchor","end"),d.setAttribute("x",b+Blockly.Bubble.BORDER_WIDTH);this.updateColour();a=this.bubble_.getBubbleSize();this.bubble_.setBubbleSize(a.width,a.height)}else this.bubble_.dispose(),
+Blockly.Warning.prototype.setVisible=function(a){if(a!=this.isVisible())if(a){a=Blockly.Warning.textToDom_(this.text_);this.bubble_=new Blockly.Bubble(this.block_.workspace,a,this.block_.svgPath_,this.iconX_,this.iconY_,null,null);if(Blockly.RTL)for(var b=a.getBBox().width,c=0,d;d=a.childNodes[c];c++)d.setAttribute("text-anchor","end"),d.setAttribute("x",b+Blockly.Bubble.BORDER_WIDTH);this.updateColour();a=this.bubble_.getBubbleSize();this.bubble_.setBubbleSize(a.width,a.height)}else this.bubble_.dispose(),
 this.body_=this.bubble_=null};Blockly.Warning.prototype.bodyFocus_=function(a){this.bubble_.promote_()};Blockly.Warning.prototype.setText=function(a){this.text_!=a&&(this.text_=a,this.isVisible()&&(this.setVisible(!1),this.setVisible(!0)))};Blockly.Warning.prototype.dispose=function(){this.block_.warning=null;Blockly.Icon.prototype.dispose.call(this)};
 // Copyright 2011 Google Inc.  Apache License 2.0
-Blockly.uidCounter_=0;Blockly.getUidCounter=function(){return Blockly.uidCounter_};Blockly.setUidCounter=function(a){Blockly.uidCounter_=a};Blockly.genUid=function(){var a=(++Blockly.uidCounter_).toString();return Blockly.Realtime.isEnabled()?Blockly.Realtime.genUid(a):a};Blockly.Block=function(){goog.asserts.assert(0==arguments.length,"Please use Blockly.Block.obtain.")};
-Blockly.Block.obtain=function(a,b){if(Blockly.Realtime.isEnabled())return Blockly.Realtime.obtainBlock(a,b);var c=new Blockly.Block;c.initialize(a,b);return c};Blockly.Block.prototype.initialize=function(a,b){this.id=Blockly.genUid();a.addTopBlock(this);this.fill(a,b);goog.isFunction(this.onchange)&&Blockly.bindEvent_(a.getCanvas(),"blocklyWorkspaceChange",this,this.onchange)};
-Blockly.Block.prototype.fill=function(a,b){this.previousConnection=this.nextConnection=this.outputConnection=null;this.inputList=[];this.disabled=this.rendered=this.inputsInline=!1;this.tooltip="";this.contextMenu=!0;this.parentBlock_=null;this.childBlocks_=[];this.editable_=this.movable_=this.deletable_=!0;this.collapsed_=!1;this.workspace=a;this.isInFlyout=a.isFlyout;if(b){this.type=b;var c=Blockly.Blocks[b];goog.asserts.assertObject(c,'Error: "%s" is an unknown language block.',b);goog.mixin(this,
-c)}goog.isFunction(this.init)&&this.init()};Blockly.Block.getById=function(a,b){return Blockly.Realtime.isEnabled()?Blockly.Realtime.getBlockById(a):b.getBlockById(a)};Blockly.Block.prototype.svg_=null;Blockly.Block.prototype.mutator=null;Blockly.Block.prototype.comment=null;Blockly.Block.prototype.warning=null;Blockly.Block.prototype.getIcons=function(){var a=[];this.mutator&&a.push(this.mutator);this.comment&&a.push(this.comment);this.warning&&a.push(this.warning);return a};
-Blockly.Block.prototype.initSvg=function(){this.svg_=new Blockly.BlockSvg(this);this.svg_.init();Blockly.readOnly||Blockly.bindEvent_(this.svg_.getRootElement(),"mousedown",this,this.onMouseDown_);this.workspace.getCanvas().appendChild(this.svg_.getRootElement())};Blockly.Block.prototype.getSvgRoot=function(){return this.svg_&&this.svg_.getRootElement()};Blockly.Block.dragMode_=0;Blockly.Block.onMouseUpWrapper_=null;Blockly.Block.onMouseMoveWrapper_=null;
-Blockly.Block.terminateDrag_=function(){Blockly.Block.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Block.onMouseUpWrapper_),Blockly.Block.onMouseUpWrapper_=null);Blockly.Block.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.Block.onMouseMoveWrapper_),Blockly.Block.onMouseMoveWrapper_=null);var a=Blockly.selected;if(2==Blockly.Block.dragMode_&&a){var b=a.getRelativeToSurfaceXY();a.moveConnections_(b.x-a.startDragX,b.y-a.startDragY);delete a.draggedBubbles_;a.setDragging_(!1);a.render();goog.Timer.callOnce(a.bumpNeighbours_,
-Blockly.BUMP_DELAY,a);Blockly.fireUiEvent(window,"resize")}a&&a.workspace.fireChangeEvent();Blockly.Block.dragMode_=0;Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN)};Blockly.Block.prototype.select=function(){goog.asserts.assertObject(this.svg_,"Block is not rendered.");Blockly.selected&&Blockly.selected.unselect();Blockly.selected=this;this.svg_.addSelect();Blockly.fireUiEvent(this.workspace.getCanvas(),"blocklySelectChange")};
-Blockly.Block.prototype.unselect=function(){goog.asserts.assertObject(this.svg_,"Block is not rendered.");Blockly.selected=null;this.svg_.removeSelect();Blockly.fireUiEvent(this.workspace.getCanvas(),"blocklySelectChange")};
-Blockly.Block.prototype.dispose=function(a,b,c){this.rendered=!1;this.unplug(a,!1);b&&this.svg_&&this.svg_.disposeUiEffect();this.workspace&&!c&&(this.workspace.removeTopBlock(this),this.workspace=null);Blockly.selected==this&&(Blockly.selected=null,Blockly.terminateDrag_());Blockly.ContextMenu.currentBlock==this&&Blockly.ContextMenu.hide();for(a=this.childBlocks_.length-1;0<=a;a--)this.childBlocks_[a].dispose(!1);b=this.getIcons();for(a=0;a<b.length;a++)b[a].dispose();for(a=0;b=this.inputList[a];a++)b.dispose();
-this.inputList=[];b=this.getConnections_(!0);for(a=0;a<b.length;a++)c=b[a],c.targetConnection&&c.disconnect(),b[a].dispose();this.svg_&&(this.svg_.dispose(),this.svg_=null);Blockly.Realtime.isEnabled()&&!Blockly.Realtime.withinSync&&Blockly.Realtime.removeBlock(this)};
+Blockly.Block=function(){goog.asserts.assert(0==arguments.length,"Please use Blockly.Block.obtain.")};Blockly.Block.obtain=function(a,b){if(Blockly.Realtime.isEnabled())return Blockly.Realtime.obtainBlock(a,b);var c=a.rendered?new Blockly.BlockSvg:new Blockly.Block;c.initialize(a,b);return c};Blockly.Block.prototype.initialize=function(a,b){this.id=Blockly.Blocks.genUid();a.addTopBlock(this);this.fill(a,b)};
+Blockly.Block.prototype.fill=function(a,b){this.previousConnection=this.nextConnection=this.outputConnection=null;this.inputList=[];this.disabled=this.rendered=this.inputsInline=!1;this.tooltip="";this.contextMenu=!0;this.parentBlock_=null;this.childBlocks_=[];this.editable_=this.movable_=this.deletable_=!0;this.collapsed_=!1;this.comment=null;this.xy_=new goog.math.Coordinate(0,0);this.workspace=a;this.isInFlyout=a.isFlyout;if(b){this.type=b;var c=Blockly.Blocks[b];goog.asserts.assertObject(c,'Error: "%s" is an unknown language block.',
+b);goog.mixin(this,c)}goog.isFunction(this.init)&&this.init()};Blockly.Block.getById=function(a,b){return Blockly.Realtime.isEnabled()?Blockly.Realtime.getBlockById(a):b.getBlockById(a)};
+Blockly.Block.prototype.dispose=function(a,b,c){this.unplug(a,!1);this.workspace&&!c&&(this.workspace.removeTopBlock(this),this.workspace=null);Blockly.selected==this&&(Blockly.selected=null);for(a=this.childBlocks_.length-1;0<=a;a--)this.childBlocks_[a].dispose(!1);for(a=0;b=this.inputList[a];a++)b.dispose();this.inputList.length=0;b=this.getConnections_(!0);for(a=0;a<b.length;a++)c=b[a],c.targetConnection&&c.disconnect(),b[a].dispose();Blockly.Realtime.isEnabled()&&!Blockly.Realtime.withinSync&&
+Blockly.Realtime.removeBlock(this)};
 Blockly.Block.prototype.unplug=function(a,b){b=b&&!!this.getParent();if(this.outputConnection)this.outputConnection.targetConnection&&this.setParent(null);else{var c=null;this.previousConnection&&this.previousConnection.targetConnection&&(c=this.previousConnection.targetConnection,this.setParent(null));var d=this.getNextBlock();if(a&&d){var e=this.nextConnection.targetConnection;d.setParent(null);c&&c.checkType_(e)&&c.connect(e)}}b&&this.moveBy(Blockly.SNAP_RADIUS*(Blockly.RTL?-1:1),2*Blockly.SNAP_RADIUS)};
-Blockly.Block.prototype.getRelativeToSurfaceXY=function(){var a=0,b=0;if(this.svg_){var c=this.svg_.getRootElement();do var d=Blockly.getRelativeXY_(c),a=a+d.x,b=b+d.y,c=c.parentNode;while(c&&c!=this.workspace.getCanvas())}return{x:a,y:b}};Blockly.Block.prototype.moveBy=function(a,b){var c=this.getRelativeToSurfaceXY();this.svg_.getRootElement().setAttribute("transform","translate("+(c.x+a)+", "+(c.y+b)+")");this.moveConnections_(a,b);Blockly.Realtime.blockChanged(this)};
-Blockly.Block.prototype.getHeightWidth=function(){var a=this.svg_.height,b=this.svg_.width,c=this.getNextBlock();c&&(c=c.getHeightWidth(),a+=c.height-4,b=Math.max(b,c.width));return{height:a,width:b}};
-Blockly.Block.prototype.onMouseDown_=function(a){if(!this.isInFlyout){Blockly.svgResize();Blockly.terminateDrag_();this.select();Blockly.hideChaff();if(Blockly.isRightButton(a))this.showContextMenu_(a);else if(this.isMovable()){Blockly.removeAllRanges();Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);var b=this.getRelativeToSurfaceXY();this.startDragX=b.x;this.startDragY=b.y;this.startDragMouseX=a.clientX;this.startDragMouseY=a.clientY;Blockly.Block.dragMode_=1;Blockly.Block.onMouseUpWrapper_=Blockly.bindEvent_(document,
-"mouseup",this,this.onMouseUp_);Blockly.Block.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.onMouseMove_);this.draggedBubbles_=[];for(var b=this.getDescendants(),c=0,d;d=b[c];c++){d=d.getIcons();for(var e=0;e<d.length;e++){var f=d[e].getIconLocation();f.bubble=d[e];this.draggedBubbles_.push(f)}}}else return;a.stopPropagation()}};
-Blockly.Block.prototype.onMouseUp_=function(a){var b=this;Blockly.doCommand(function(){Blockly.terminateDrag_();if(Blockly.selected&&Blockly.highlightedConnection_)Blockly.localConnection_.connect(Blockly.highlightedConnection_),b.svg_&&(Blockly.localConnection_.isSuperior()?Blockly.highlightedConnection_:Blockly.localConnection_).sourceBlock_.svg_.connectionUiEffect(),b.workspace.trashcan&&b.workspace.trashcan.close();else if(b.workspace.isDeleteArea(a)){var c=b.workspace.trashcan;c&&goog.Timer.callOnce(c.close,
-100,c);Blockly.selected.dispose(!1,!0);Blockly.fireUiEvent(window,"resize")}Blockly.highlightedConnection_&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null);Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN)})};Blockly.Block.prototype.showHelp_=function(){var a=goog.isFunction(this.helpUrl)?this.helpUrl():this.helpUrl;a&&window.open(a)};
 Blockly.Block.prototype.duplicate_=function(){var a=Blockly.Xml.blockToDom_(this);Blockly.Xml.deleteNext(a);var a=Blockly.Xml.domToBlock(this.workspace,a),b=this.getRelativeToSurfaceXY();b.x=Blockly.RTL?b.x-Blockly.SNAP_RADIUS:b.x+Blockly.SNAP_RADIUS;b.y+=2*Blockly.SNAP_RADIUS;a.moveBy(b.x,b.y);a.select();return a};
-Blockly.Block.prototype.showContextMenu_=function(a){if(!Blockly.readOnly&&this.contextMenu){var b=this,c=[];if(this.isDeletable()&&this.isMovable()&&!b.isInFlyout){var d={text:Blockly.Msg.DUPLICATE_BLOCK,enabled:!0,callback:function(){b.duplicate_()}};this.getDescendants().length>this.workspace.remainingCapacity()&&(d.enabled=!1);c.push(d);this.isEditable()&&!this.collapsed_&&Blockly.comments&&(d={enabled:!0},this.comment?(d.text=Blockly.Msg.REMOVE_COMMENT,d.callback=function(){b.setCommentText(null)}):
-(d.text=Blockly.Msg.ADD_COMMENT,d.callback=function(){b.setCommentText("")}),c.push(d));if(!this.collapsed_)for(d=0;d<this.inputList.length;d++)if(this.inputList[d].type==Blockly.INPUT_VALUE){d={enabled:!0};d.text=this.inputsInline?Blockly.Msg.EXTERNAL_INPUTS:Blockly.Msg.INLINE_INPUTS;d.callback=function(){b.setInputsInline(!b.inputsInline)};c.push(d);break}Blockly.collapse&&(this.collapsed_?(d={enabled:!0},d.text=Blockly.Msg.EXPAND_BLOCK,d.callback=function(){b.setCollapsed(!1)}):(d={enabled:!0},
-d.text=Blockly.Msg.COLLAPSE_BLOCK,d.callback=function(){b.setCollapsed(!0)}),c.push(d));Blockly.disable&&(d={text:this.disabled?Blockly.Msg.ENABLE_BLOCK:Blockly.Msg.DISABLE_BLOCK,enabled:!this.getInheritedDisabled(),callback:function(){b.setDisabled(!b.disabled)}},c.push(d));var d=this.getDescendants().length,e=this.getNextBlock();e&&(d-=e.getDescendants().length);d={text:1==d?Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(d)),enabled:!0,callback:function(){b.dispose(!0,
-!0)}};c.push(d)}d={enabled:!(goog.isFunction(this.helpUrl)?!this.helpUrl():!this.helpUrl)};d.text=Blockly.Msg.HELP;d.callback=function(){b.showHelp_()};c.push(d);this.customContextMenu&&!b.isInFlyout&&this.customContextMenu(c);Blockly.ContextMenu.show(a,c);Blockly.ContextMenu.currentBlock=this}};
 Blockly.Block.prototype.getConnections_=function(a){var b=[];if(a||this.rendered)if(this.outputConnection&&b.push(this.outputConnection),this.nextConnection&&b.push(this.nextConnection),this.previousConnection&&b.push(this.previousConnection),a||!this.collapsed_){a=0;for(var c;c=this.inputList[a];a++)c.connection&&b.push(c.connection)}return b};
-Blockly.Block.prototype.moveConnections_=function(a,b){if(this.rendered){for(var c=this.getConnections_(!1),d=0;d<c.length;d++)c[d].moveBy(a,b);c=this.getIcons();for(d=0;d<c.length;d++)c[d].computeIconLocation();for(d=0;d<this.childBlocks_.length;d++)this.childBlocks_[d].moveConnections_(a,b)}};Blockly.Block.prototype.setDragging_=function(a){a?this.svg_.addDragging():this.svg_.removeDragging();for(var b=0;b<this.childBlocks_.length;b++)this.childBlocks_[b].setDragging_(a)};
-Blockly.Block.prototype.onMouseMove_=function(a){var b=this;Blockly.doCommand(function(){if(!("mousemove"==a.type&&1>=a.clientX&&0==a.clientY&&0==a.button)){Blockly.removeAllRanges();var c=a.clientX-b.startDragMouseX,d=a.clientY-b.startDragMouseY;1==Blockly.Block.dragMode_&&Math.sqrt(Math.pow(c,2)+Math.pow(d,2))>Blockly.DRAG_RADIUS&&(Blockly.Block.dragMode_=2,b.setParent(null),b.setDragging_(!0),b.workspace.recordDeleteAreas());if(2==Blockly.Block.dragMode_){var e=b.startDragX+c,f=b.startDragY+d;
-b.svg_.getRootElement().setAttribute("transform","translate("+e+", "+f+")");for(e=0;e<b.draggedBubbles_.length;e++)f=b.draggedBubbles_[e],f.bubble.setIconLocation(f.x+c,f.y+d);for(var f=b.getConnections_(!1),g=null,h=null,k=Blockly.SNAP_RADIUS,e=0;e<f.length;e++){var l=f[e],p=l.closest(k,c,d);p.connection&&(g=p.connection,h=l,k=p.radius)}Blockly.highlightedConnection_&&Blockly.highlightedConnection_!=g&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null,Blockly.localConnection_=
-null);g&&g!=Blockly.highlightedConnection_&&(g.highlight(),Blockly.highlightedConnection_=g,Blockly.localConnection_=h);b.isDeletable()&&b.workspace.isDeleteArea(a)}}a.stopPropagation()})};
-Blockly.Block.prototype.bumpNeighbours_=function(){if(0==Blockly.Block.dragMode_){var a=this.getRootBlock();if(!a.isInFlyout)for(var b=this.getConnections_(!1),c=0;c<b.length;c++){var d=b[c];d.targetConnection&&d.isSuperior()&&d.targetBlock().bumpNeighbours_();for(var e=d.neighbours_(Blockly.SNAP_RADIUS),f=0;f<e.length;f++){var g=e[f];d.targetConnection&&g.targetConnection||g.sourceBlock_.getRootBlock()!=a&&(d.isSuperior()?g.bumpAwayFrom_(d):d.bumpAwayFrom_(g))}}}};
-Blockly.Block.prototype.getParent=function(){return this.parentBlock_};Blockly.Block.prototype.getSurroundParent=function(){for(var a=this;;){do{var b=a,a=a.getParent();if(!a)return null}while(a.getNextBlock()==b);return a}};Blockly.Block.prototype.getNextBlock=function(){return this.nextConnection&&this.nextConnection.targetBlock()};Blockly.Block.prototype.getRootBlock=function(){var a,b=this;do a=b,b=a.parentBlock_;while(b);return a};Blockly.Block.prototype.getChildren=function(){return this.childBlocks_};
-Blockly.Block.prototype.setParent=function(a){if(this.parentBlock_){for(var b=this.parentBlock_.childBlocks_,c,d=0;c=b[d];d++)if(c==this){b.splice(d,1);break}b=this.getRelativeToSurfaceXY();this.workspace.getCanvas().appendChild(this.svg_.getRootElement());this.svg_.getRootElement().setAttribute("transform","translate("+b.x+", "+b.y+")");this.parentBlock_=null;this.previousConnection&&this.previousConnection.targetConnection&&this.previousConnection.disconnect();this.outputConnection&&this.outputConnection.targetConnection&&
-this.outputConnection.disconnect()}else goog.array.contains(this.workspace.getTopBlocks(!1),this)&&this.workspace.removeTopBlock(this);(this.parentBlock_=a)?(a.childBlocks_.push(this),b=this.getRelativeToSurfaceXY(),a.svg_&&this.svg_&&a.svg_.getRootElement().appendChild(this.svg_.getRootElement()),a=this.getRelativeToSurfaceXY(),this.moveConnections_(a.x-b.x,a.y-b.y)):this.workspace.addTopBlock(this)};
-Blockly.Block.prototype.getDescendants=function(){for(var a=[this],b,c=0;b=this.childBlocks_[c];c++)a.push.apply(a,b.getDescendants());return a};Blockly.Block.prototype.isDeletable=function(){return this.deletable_&&!Blockly.readOnly};Blockly.Block.prototype.setDeletable=function(a){this.deletable_=a;this.svg_&&this.svg_.updateMovable()};Blockly.Block.prototype.isMovable=function(){return this.movable_&&!Blockly.readOnly};Blockly.Block.prototype.setMovable=function(a){this.movable_=a};
-Blockly.Block.prototype.isEditable=function(){return this.editable_&&!Blockly.readOnly};Blockly.Block.prototype.setEditable=function(a){this.editable_=a;a=0;for(var b;b=this.inputList[a];a++)for(var c=0,d;d=b.fieldRow[c];c++)d.updateEditable();b=this.getIcons();for(a=0;a<b.length;a++)b[a].updateEditable()};Blockly.Block.prototype.setHelpUrl=function(a){this.helpUrl=a};Blockly.Block.prototype.getColour=function(){return this.colourHue_};
-Blockly.Block.prototype.setColour=function(a){this.colourHue_=a;this.svg_&&this.svg_.updateColour();var b=this.getIcons();for(a=0;a<b.length;a++)b[a].updateColour();if(this.rendered){for(a=0;b=this.inputList[a];a++)for(var c=0,d;d=b.fieldRow[c];c++)d.setText(null);this.render()}};Blockly.Block.prototype.getField_=function(a){for(var b=0,c;c=this.inputList[b];b++)for(var d=0,e;e=c.fieldRow[d];d++)if(e.name===a)return e;return null};
-Blockly.Block.prototype.getFieldValue=function(a){return(a=this.getField_(a))?a.getValue():null};Blockly.Block.prototype.getTitleValue=function(a){console.log("Deprecated call to getTitleValue, use getFieldValue instead.");return this.getFieldValue(a)};Blockly.Block.prototype.setFieldValue=function(a,b){var c=this.getField_(b);goog.asserts.assertObject(c,'Field "%s" not found.',b);c.setValue(a)};
-Blockly.Block.prototype.setTitleValue=function(a,b){console.log("Deprecated call to setTitleValue, use setFieldValue instead.");this.setFieldValue(a,b)};Blockly.Block.prototype.setTooltip=function(a){this.tooltip=a};
+Blockly.Block.prototype.bumpNeighbours_=function(){if(0==Blockly.dragMode_){var a=this.getRootBlock();if(!a.isInFlyout)for(var b=this.getConnections_(!1),c=0;c<b.length;c++){var d=b[c];d.targetConnection&&d.isSuperior()&&d.targetBlock().bumpNeighbours_();for(var e=d.neighbours_(Blockly.SNAP_RADIUS),f=0;f<e.length;f++){var g=e[f];d.targetConnection&&g.targetConnection||g.sourceBlock_.getRootBlock()!=a&&(d.isSuperior()?g.bumpAwayFrom_(d):d.bumpAwayFrom_(g))}}}};Blockly.Block.prototype.getParent=function(){return this.parentBlock_};
+Blockly.Block.prototype.getSurroundParent=function(){for(var a=this;;){do{var b=a,a=a.getParent();if(!a)return null}while(a.getNextBlock()==b);return a}};Blockly.Block.prototype.getNextBlock=function(){return this.nextConnection&&this.nextConnection.targetBlock()};Blockly.Block.prototype.getRootBlock=function(){var a,b=this;do a=b,b=a.parentBlock_;while(b);return a};Blockly.Block.prototype.getChildren=function(){return this.childBlocks_};
+Blockly.Block.prototype.setParent=function(a){if(this.parentBlock_){for(var b=this.parentBlock_.childBlocks_,c,d=0;c=b[d];d++)if(c==this){b.splice(d,1);break}this.parentBlock_=null;this.previousConnection&&this.previousConnection.targetConnection&&this.previousConnection.disconnect();this.outputConnection&&this.outputConnection.targetConnection&&this.outputConnection.disconnect()}else goog.array.contains(this.workspace.getTopBlocks(!1),this)&&this.workspace.removeTopBlock(this);(this.parentBlock_=
+a)?a.childBlocks_.push(this):this.workspace.addTopBlock(this)};Blockly.Block.prototype.getDescendants=function(){for(var a=[this],b,c=0;b=this.childBlocks_[c];c++)a.push.apply(a,b.getDescendants());return a};Blockly.Block.prototype.isDeletable=function(){return this.deletable_&&!Blockly.readOnly};Blockly.Block.prototype.setDeletable=function(a){this.deletable_=a;this.svg_&&this.svg_.updateMovable()};Blockly.Block.prototype.isMovable=function(){return this.movable_&&!Blockly.readOnly};
+Blockly.Block.prototype.setMovable=function(a){this.movable_=a};Blockly.Block.prototype.isEditable=function(){return this.editable_&&!Blockly.readOnly};Blockly.Block.prototype.setEditable=function(a){this.editable_=a;a=0;for(var b;b=this.inputList[a];a++)for(var c=0,d;d=b.fieldRow[c];c++)d.updateEditable();b=this.getIcons();for(a=0;a<b.length;a++)b[a].updateEditable()};Blockly.Block.prototype.setHelpUrl=function(a){this.helpUrl=a};Blockly.Block.prototype.getColour=function(){return this.colourHue_};
+Blockly.Block.prototype.setColour=function(a){this.colourHue_=a;this.rendered&&this.updateColour()};Blockly.Block.prototype.getField_=function(a){for(var b=0,c;c=this.inputList[b];b++)for(var d=0,e;e=c.fieldRow[d];d++)if(e.name===a)return e;return null};Blockly.Block.prototype.getFieldValue=function(a){return(a=this.getField_(a))?a.getValue():null};Blockly.Block.prototype.getTitleValue=function(a){console.log("Deprecated call to getTitleValue, use getFieldValue instead.");return this.getFieldValue(a)};
+Blockly.Block.prototype.setFieldValue=function(a,b){var c=this.getField_(b);goog.asserts.assertObject(c,'Field "%s" not found.',b);c.setValue(a)};Blockly.Block.prototype.setTitleValue=function(a,b){console.log("Deprecated call to setTitleValue, use setFieldValue instead.");this.setFieldValue(a,b)};Blockly.Block.prototype.setTooltip=function(a){this.tooltip=a};
 Blockly.Block.prototype.setPreviousStatement=function(a,b){this.previousConnection&&(goog.asserts.assert(!this.previousConnection.targetConnection,"Must disconnect previous statement before removing connection."),this.previousConnection.dispose(),this.previousConnection=null);a&&(goog.asserts.assert(!this.outputConnection,"Remove output connection prior to adding previous connection."),void 0===b&&(b=null),this.previousConnection=new Blockly.Connection(this,Blockly.PREVIOUS_STATEMENT),this.previousConnection.setCheck(b));
 this.rendered&&(this.render(),this.bumpNeighbours_())};Blockly.Block.prototype.setNextStatement=function(a,b){this.nextConnection&&(goog.asserts.assert(!this.nextConnection.targetConnection,"Must disconnect next statement before removing connection."),this.nextConnection.dispose(),this.nextConnection=null);a&&(void 0===b&&(b=null),this.nextConnection=new Blockly.Connection(this,Blockly.NEXT_STATEMENT),this.nextConnection.setCheck(b));this.rendered&&(this.render(),this.bumpNeighbours_())};
 Blockly.Block.prototype.setOutput=function(a,b){this.outputConnection&&(goog.asserts.assert(!this.outputConnection.targetConnection,"Must disconnect output value before removing connection."),this.outputConnection.dispose(),this.outputConnection=null);a&&(goog.asserts.assert(!this.previousConnection,"Remove previous connection prior to adding output connection."),void 0===b&&(b=null),this.outputConnection=new Blockly.Connection(this,Blockly.OUTPUT_VALUE),this.outputConnection.setCheck(b));this.rendered&&
-(this.render(),this.bumpNeighbours_())};Blockly.Block.prototype.changeOutput=function(a){goog.asserts.assert(this.outputConnection,"Only use changeOutput() on blocks that already have an output.");this.outputConnection.setCheck(a)};Blockly.Block.prototype.setInputsInline=function(a){this.inputsInline=a;this.rendered&&(this.render(),this.bumpNeighbours_(),this.workspace.fireChangeEvent())};
-Blockly.Block.prototype.setDisabled=function(a){this.disabled!=a&&(this.disabled=a,this.svg_.updateDisabled(),this.workspace.fireChangeEvent())};Blockly.Block.prototype.getInheritedDisabled=function(){for(var a=this;;){a=a.getSurroundParent();if(!a)return!1;if(a.disabled)return!0}};Blockly.Block.prototype.isCollapsed=function(){return this.collapsed_};
-Blockly.Block.prototype.setCollapsed=function(a){if(this.collapsed_!=a){this.collapsed_=a;for(var b=[],c=0,d;d=this.inputList[c];c++)b.push.apply(b,d.setVisible(!a));if(a){a=this.getIcons();for(c=0;c<a.length;c++)a[c].setVisible(!1);c=this.toString(Blockly.COLLAPSE_CHARS);this.appendDummyInput("_TEMP_COLLAPSED_INPUT").appendField(c)}else this.removeInput("_TEMP_COLLAPSED_INPUT");b.length||(b[0]=this);if(this.rendered){for(c=0;a=b[c];c++)a.render();this.bumpNeighbours_()}}};
+(this.render(),this.bumpNeighbours_())};Blockly.Block.prototype.changeOutput=function(a){goog.asserts.assert(this.outputConnection,"Only use changeOutput() on blocks that already have an output.");this.outputConnection.setCheck(a)};Blockly.Block.prototype.setInputsInline=function(a){this.inputsInline=a;this.rendered&&(this.render(),this.bumpNeighbours_(),this.workspace.fireChangeEvent())};Blockly.Block.prototype.setDisabled=function(a){this.disabled=a};
+Blockly.Block.prototype.getInheritedDisabled=function(){for(var a=this;;){a=a.getSurroundParent();if(!a)return!1;if(a.disabled)return!0}};Blockly.Block.prototype.isCollapsed=function(){return this.collapsed_};Blockly.Block.prototype.setCollapsed=function(a){this.collapsed_=a};
 Blockly.Block.prototype.toString=function(a){for(var b=[],c=0,d;d=this.inputList[c];c++){for(var e=0,f;f=d.fieldRow[e];e++)b.push(f.getText());d.connection&&((d=d.connection.targetBlock())?b.push(d.toString()):b.push("?"))}b=goog.string.trim(b.join(" "))||"???";a&&(b=goog.string.truncate(b,a));return b};Blockly.Block.prototype.appendValueInput=function(a){return this.appendInput_(Blockly.INPUT_VALUE,a)};
 Blockly.Block.prototype.appendStatementInput=function(a){return this.appendInput_(Blockly.NEXT_STATEMENT,a)};Blockly.Block.prototype.appendDummyInput=function(a){return this.appendInput_(Blockly.DUMMY_INPUT,a||"")};
 Blockly.Block.prototype.interpolateMsg=function(a,b){function c(a){a instanceof Blockly.Field?this.appendField(a):(goog.asserts.assert(goog.isArray(a)),this.appendField(a[1],a[0]))}goog.asserts.assertString(a);var d=arguments[arguments.length-1];goog.asserts.assert(d===Blockly.ALIGN_LEFT||d===Blockly.ALIGN_CENTRE||d===Blockly.ALIGN_RIGHT,'Illegal final argument "%d" is not an alignment.',d);--arguments.length;for(var e=a.split(this.interpolateMsg.SPLIT_REGEX_),f=[],g=0;g<e.length;g+=2){var h=goog.string.trim(e[g]),
@@ -1077,18 +1007,92 @@ Blockly.Block.prototype.appendInput_=function(a,b){var c=null;if(a==Blockly.INPU
 Blockly.Block.prototype.moveInputBefore=function(a,b){if(a!=b){for(var c=-1,d=b?-1:this.inputList.length,e=0,f;f=this.inputList[e];e++)if(f.name==a){if(c=e,-1!=d)break}else if(b&&f.name==b&&(d=e,-1!=c))break;goog.asserts.assert(-1!=c,'Named input "%s" not found.',a);goog.asserts.assert(-1!=d,'Reference input "%s" not found.',b);this.moveNumberedInputBefore(c,d)}};
 Blockly.Block.prototype.moveNumberedInputBefore=function(a,b){goog.asserts.assert(a!=b,"Can't move input to itself.");goog.asserts.assert(a<this.inputList.length,"Input index "+a+" out of bounds.");goog.asserts.assert(b<=this.inputList.length,"Reference input "+b+" out of bounds.");var c=this.inputList[a];this.inputList.splice(a,1);a<b&&b--;this.inputList.splice(b,0,c);this.rendered&&(this.render(),this.bumpNeighbours_())};
 Blockly.Block.prototype.removeInput=function(a,b){for(var c=0,d;d=this.inputList[c];c++)if(d.name==a){d.connection&&d.connection.targetConnection&&d.connection.targetBlock().setParent(null);d.dispose();this.inputList.splice(c,1);this.rendered&&(this.render(),this.bumpNeighbours_());return}b||goog.asserts.fail('Input "%s" not found.',a)};Blockly.Block.prototype.getInput=function(a){for(var b=0,c;c=this.inputList[b];b++)if(c.name==a)return c;return null};
-Blockly.Block.prototype.getInputTargetBlock=function(a){return(a=this.getInput(a))&&a.connection&&a.connection.targetBlock()};Blockly.Block.prototype.setMutator=function(a){this.mutator&&this.mutator!==a&&this.mutator.dispose();a&&(a.block_=this,this.mutator=a,this.svg_&&a.createIcon())};Blockly.Block.prototype.getCommentText=function(){return this.comment?this.comment.getText().replace(/\s+$/,"").replace(/ +\n/g,"\n"):""};
-Blockly.Block.prototype.setCommentText=function(a){var b=!1;goog.isString(a)?(this.comment||(this.comment=new Blockly.Comment(this),b=!0),this.comment.setText(a)):this.comment&&(this.comment.dispose(),b=!0);this.rendered&&(this.render(),b&&this.bumpNeighbours_())};
-Blockly.Block.prototype.setWarningText=function(a){this.isInFlyout&&(a=null);var b=!1;goog.isString(a)?(this.warning||(this.warning=new Blockly.Warning(this),b=!0),this.warning.setText(a)):this.warning&&(this.warning.dispose(),b=!0);b&&this.rendered&&(this.render(),this.bumpNeighbours_())};Blockly.Block.prototype.render=function(){goog.asserts.assertObject(this.svg_,"Uninitialized block cannot be rendered.  Call block.initSvg()");this.svg_.render();Blockly.Realtime.blockChanged(this)};
+Blockly.Block.prototype.getInputTargetBlock=function(a){return(a=this.getInput(a))&&a.connection&&a.connection.targetBlock()};Blockly.Block.prototype.getCommentText=function(){return this.comment||""};Blockly.Block.prototype.setCommentText=function(a){this.comment=a};Blockly.Block.prototype.setWarningText=function(a){};Blockly.Block.prototype.setMutator=function(a){};Blockly.Block.prototype.getRelativeToSurfaceXY=function(){return this.xy_};
+Blockly.Block.prototype.moveBy=function(a,b){this.xy_.translate(a,b)};
+// Copyright 2011 Google Inc.  Apache License 2.0
+Blockly.ContextMenu={};Blockly.ContextMenu.currentBlock=null;
+Blockly.ContextMenu.show=function(a,b){Blockly.WidgetDiv.show(Blockly.ContextMenu,null);if(b.length){for(var c=new goog.ui.Menu,d=0,e;e=b[d];d++){var f=new goog.ui.MenuItem(e.text);c.addChild(f,!0);f.setEnabled(e.enabled);e.enabled&&goog.events.listen(f,goog.ui.Component.EventType.ACTION,function(a){return function(){Blockly.doCommand(a)}}(e.callback))}goog.events.listen(c,goog.ui.Component.EventType.ACTION,Blockly.ContextMenu.hide);e=goog.dom.getViewportSize();f=goog.style.getViewportPageOffset(document);
+c.render(Blockly.WidgetDiv.DIV);var g=c.getElement();Blockly.addClass_(g,"blocklyContextMenu");var h=goog.style.getSize(g),d=a.clientX+f.x,k=a.clientY+f.y;a.clientY+h.height>=e.height&&(k-=h.height);Blockly.RTL?h.width>=a.clientX&&(d+=h.width):a.clientX+h.width>=e.width&&(d-=h.width);Blockly.WidgetDiv.position(d,k,e,f);c.setAllowAutoFocus(!0);setTimeout(function(){g.focus()},1);Blockly.ContextMenu.currentBlock=null}else Blockly.ContextMenu.hide()};
+Blockly.ContextMenu.hide=function(){Blockly.WidgetDiv.hideIfOwner(Blockly.ContextMenu);Blockly.ContextMenu.currentBlock=null};Blockly.ContextMenu.callbackFactory=function(a,b){return function(){var c=Blockly.Xml.domToBlock(a.workspace,b),d=a.getRelativeToSurfaceXY();d.x=Blockly.RTL?d.x-Blockly.SNAP_RADIUS:d.x+Blockly.SNAP_RADIUS;d.y+=2*Blockly.SNAP_RADIUS;c.moveBy(d.x,d.y);c.select()}};
+// Copyright 2012 Google Inc.  Apache License 2.0
+Blockly.BlockSvg=function(){this.svgGroup_=Blockly.createSvgElement("g",{},null);this.svgPathDark_=Blockly.createSvgElement("path",{"class":"blocklyPathDark",transform:"translate(1, 1)"},this.svgGroup_);this.svgPath_=Blockly.createSvgElement("path",{"class":"blocklyPath"},this.svgGroup_);this.svgPathLight_=Blockly.createSvgElement("path",{"class":"blocklyPathLight"},this.svgGroup_);this.svgPath_.tooltip=this;Blockly.Tooltip.bindMouseEvents(this.svgPath_);this.updateMovable()};
+goog.inherits(Blockly.BlockSvg,Blockly.Block);Blockly.BlockSvg.prototype.height=0;Blockly.BlockSvg.prototype.width=0;Blockly.BlockSvg.INLINE=-1;
+Blockly.BlockSvg.prototype.initSvg=function(){goog.asserts.assert(this.workspace.rendered,"Workspace is headless.");this.updateColour();for(var a=0,b;b=this.inputList[a];a++)b.init();this.mutator&&this.mutator.createIcon();Blockly.readOnly||Blockly.bindEvent_(this.getSvgRoot(),"mousedown",this,this.onMouseDown_);this.workspace.getCanvas().appendChild(this.getSvgRoot());goog.isFunction(this.onchange)&&Blockly.bindEvent_(workspace.getCanvas(),"blocklyWorkspaceChange",this,this.onchange)};
+Blockly.BlockSvg.prototype.select=function(){Blockly.selected&&Blockly.selected.unselect();Blockly.selected=this;this.addSelect();Blockly.fireUiEvent(this.workspace.getCanvas(),"blocklySelectChange")};Blockly.BlockSvg.prototype.unselect=function(){Blockly.selected=null;this.removeSelect();Blockly.fireUiEvent(this.workspace.getCanvas(),"blocklySelectChange")};Blockly.BlockSvg.prototype.mutator=null;Blockly.BlockSvg.prototype.comment=null;Blockly.BlockSvg.prototype.warning=null;
+Blockly.BlockSvg.prototype.getIcons=function(){var a=[];this.mutator&&a.push(this.mutator);this.comment&&a.push(this.comment);this.warning&&a.push(this.warning);return a};Blockly.BlockSvg.onMouseUpWrapper_=null;Blockly.BlockSvg.onMouseMoveWrapper_=null;
+Blockly.BlockSvg.terminateDrag_=function(){Blockly.BlockSvg.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.BlockSvg.onMouseUpWrapper_),Blockly.BlockSvg.onMouseUpWrapper_=null);Blockly.BlockSvg.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.BlockSvg.onMouseMoveWrapper_),Blockly.BlockSvg.onMouseMoveWrapper_=null);var a=Blockly.selected;if(2==Blockly.dragMode_&&a){var b=a.getRelativeToSurfaceXY();a.moveConnections_(b.x-a.startDragX,b.y-a.startDragY);delete a.draggedBubbles_;a.setDragging_(!1);
+a.render();goog.Timer.callOnce(a.bumpNeighbours_,Blockly.BUMP_DELAY,a);Blockly.fireUiEvent(window,"resize");a.workspace.fireChangeEvent()}Blockly.dragMode_=0;Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN)};
+Blockly.BlockSvg.prototype.setParent=function(a){var b=this.getSvgRoot();if(this.parentBlock_&&b){var c=this.getRelativeToSurfaceXY();this.workspace.getCanvas().appendChild(b);b.setAttribute("transform","translate("+c.x+", "+c.y+")")}Blockly.BlockSvg.superClass_.setParent.call(this,a);a&&(c=this.getRelativeToSurfaceXY(),a.getSvgRoot().appendChild(b),a=this.getRelativeToSurfaceXY(),this.moveConnections_(a.x-c.x,a.y-c.y))};
+Blockly.BlockSvg.prototype.getRelativeToSurfaceXY=function(){var a=0,b=0,c=this.getSvgRoot();if(c){do var d=Blockly.getRelativeXY_(c),a=a+d.x,b=b+d.y,c=c.parentNode;while(c&&c!=this.workspace.getCanvas())}return new goog.math.Coordinate(a,b)};Blockly.BlockSvg.prototype.moveBy=function(a,b){var c=this.getRelativeToSurfaceXY();this.getSvgRoot().setAttribute("transform","translate("+(c.x+a)+", "+(c.y+b)+")");this.moveConnections_(a,b);Blockly.Realtime.blockChanged(this)};
+Blockly.BlockSvg.prototype.getHeightWidth=function(){var a=this.height,b=this.width,c=this.getNextBlock();c&&(c=c.getHeightWidth(),a+=c.height-4,b=Math.max(b,c.width));return{height:a,width:b}};
+Blockly.BlockSvg.prototype.setCollapsed=function(a){if(this.collapsed_!=a){Blockly.BlockSvg.superClass_.setCollapsed.call(this,a);for(var b=[],c=0,d;d=this.inputList[c];c++)b.push.apply(b,d.setVisible(!a));if(a){a=this.getIcons();for(c=0;c<a.length;c++)a[c].setVisible(!1);c=this.toString(Blockly.COLLAPSE_CHARS);this.appendDummyInput("_TEMP_COLLAPSED_INPUT").appendField(c).init()}else this.removeInput("_TEMP_COLLAPSED_INPUT");b.length||(b[0]=this);if(this.rendered){for(c=0;a=b[c];c++)a.render();this.bumpNeighbours_()}}};
+Blockly.BlockSvg.prototype.onMouseDown_=function(a){if(!this.isInFlyout){Blockly.svgResize();Blockly.terminateDrag_();this.select();Blockly.hideChaff();if(Blockly.isRightButton(a))this.showContextMenu_(a);else if(this.isMovable()){Blockly.removeAllRanges();Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);var b=this.getRelativeToSurfaceXY();this.startDragX=b.x;this.startDragY=b.y;this.startDragMouseX=a.clientX;this.startDragMouseY=a.clientY;Blockly.dragMode_=1;Blockly.BlockSvg.onMouseUpWrapper_=Blockly.bindEvent_(document,
+"mouseup",this,this.onMouseUp_);Blockly.BlockSvg.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.onMouseMove_);this.draggedBubbles_=[];for(var b=this.getDescendants(),c=0,d;d=b[c];c++){d=d.getIcons();for(var e=0;e<d.length;e++){var f=d[e].getIconLocation();f.bubble=d[e];this.draggedBubbles_.push(f)}}}else return;a.stopPropagation()}};
+Blockly.BlockSvg.prototype.onMouseUp_=function(a){var b=this;Blockly.doCommand(function(){Blockly.terminateDrag_();if(Blockly.selected&&Blockly.highlightedConnection_)Blockly.localConnection_.connect(Blockly.highlightedConnection_),b.rendered&&(Blockly.localConnection_.isSuperior()?Blockly.highlightedConnection_:Blockly.localConnection_).sourceBlock_.connectionUiEffect(),b.workspace.trashcan&&b.workspace.trashcan.close();else if(b.workspace.isDeleteArea(a)){var c=b.workspace.trashcan;c&&goog.Timer.callOnce(c.close,
+100,c);Blockly.selected.dispose(!1,!0);Blockly.fireUiEvent(window,"resize")}Blockly.highlightedConnection_&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null);Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN)})};Blockly.BlockSvg.prototype.showHelp_=function(){var a=goog.isFunction(this.helpUrl)?this.helpUrl():this.helpUrl;a&&window.open(a)};
+Blockly.BlockSvg.prototype.showContextMenu_=function(a){if(!Blockly.readOnly&&this.contextMenu){var b=this,c=[];if(this.isDeletable()&&this.isMovable()&&!b.isInFlyout){var d={text:Blockly.Msg.DUPLICATE_BLOCK,enabled:!0,callback:function(){b.duplicate_()}};this.getDescendants().length>this.workspace.remainingCapacity()&&(d.enabled=!1);c.push(d);this.isEditable()&&!this.collapsed_&&Blockly.comments&&(d={enabled:!0},this.comment?(d.text=Blockly.Msg.REMOVE_COMMENT,d.callback=function(){b.setCommentText(null)}):
+(d.text=Blockly.Msg.ADD_COMMENT,d.callback=function(){b.setCommentText("")}),c.push(d));if(!this.collapsed_)for(d=0;d<this.inputList.length;d++)if(this.inputList[d].type==Blockly.INPUT_VALUE){d={enabled:!0};d.text=this.inputsInline?Blockly.Msg.EXTERNAL_INPUTS:Blockly.Msg.INLINE_INPUTS;d.callback=function(){b.setInputsInline(!b.inputsInline)};c.push(d);break}Blockly.collapse&&(this.collapsed_?(d={enabled:!0},d.text=Blockly.Msg.EXPAND_BLOCK,d.callback=function(){b.setCollapsed(!1)}):(d={enabled:!0},
+d.text=Blockly.Msg.COLLAPSE_BLOCK,d.callback=function(){b.setCollapsed(!0)}),c.push(d));Blockly.disable&&(d={text:this.disabled?Blockly.Msg.ENABLE_BLOCK:Blockly.Msg.DISABLE_BLOCK,enabled:!this.getInheritedDisabled(),callback:function(){b.setDisabled(!b.disabled)}},c.push(d));var d=this.getDescendants().length,e=this.getNextBlock();e&&(d-=e.getDescendants().length);d={text:1==d?Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(d)),enabled:!0,callback:function(){b.dispose(!0,
+!0)}};c.push(d)}d={enabled:!(goog.isFunction(this.helpUrl)?!this.helpUrl():!this.helpUrl)};d.text=Blockly.Msg.HELP;d.callback=function(){b.showHelp_()};c.push(d);this.customContextMenu&&!b.isInFlyout&&this.customContextMenu(c);Blockly.ContextMenu.show(a,c);Blockly.ContextMenu.currentBlock=this}};
+Blockly.BlockSvg.prototype.moveConnections_=function(a,b){if(this.rendered){for(var c=this.getConnections_(!1),d=0;d<c.length;d++)c[d].moveBy(a,b);c=this.getIcons();for(d=0;d<c.length;d++)c[d].computeIconLocation();for(d=0;d<this.childBlocks_.length;d++)this.childBlocks_[d].moveConnections_(a,b)}};Blockly.BlockSvg.prototype.setDragging_=function(a){a?this.addDragging():this.removeDragging();for(var b=0;b<this.childBlocks_.length;b++)this.childBlocks_[b].setDragging_(a)};
+Blockly.BlockSvg.prototype.onMouseMove_=function(a){var b=this;Blockly.doCommand(function(){if(!("mousemove"==a.type&&1>=a.clientX&&0==a.clientY&&0==a.button)){Blockly.removeAllRanges();var c=a.clientX-b.startDragMouseX,d=a.clientY-b.startDragMouseY;1==Blockly.dragMode_&&Math.sqrt(Math.pow(c,2)+Math.pow(d,2))>Blockly.DRAG_RADIUS&&(Blockly.dragMode_=2,b.setParent(null),b.setDragging_(!0),b.workspace.recordDeleteAreas());if(2==Blockly.dragMode_){var e=b.startDragX+c,f=b.startDragY+d;b.getSvgRoot().setAttribute("transform",
+"translate("+e+", "+f+")");for(e=0;e<b.draggedBubbles_.length;e++)f=b.draggedBubbles_[e],f.bubble.setIconLocation(f.x+c,f.y+d);for(var f=b.getConnections_(!1),g=null,h=null,k=Blockly.SNAP_RADIUS,e=0;e<f.length;e++){var l=f[e],p=l.closest(k,c,d);p.connection&&(g=p.connection,h=l,k=p.radius)}Blockly.highlightedConnection_&&Blockly.highlightedConnection_!=g&&(Blockly.highlightedConnection_.unhighlight(),Blockly.highlightedConnection_=null,Blockly.localConnection_=null);g&&g!=Blockly.highlightedConnection_&&
+(g.highlight(),Blockly.highlightedConnection_=g,Blockly.localConnection_=h);b.isDeletable()&&b.workspace.isDeleteArea(a)}}a.stopPropagation()})};Blockly.BlockSvg.prototype.updateMovable=function(){this.isMovable()?Blockly.addClass_(this.svgGroup_,"blocklyDraggable"):Blockly.removeClass_(this.svgGroup_,"blocklyDraggable")};Blockly.BlockSvg.prototype.getSvgRoot=function(){return this.svgGroup_};Blockly.BlockSvg.SEP_SPACE_X=10;Blockly.BlockSvg.SEP_SPACE_Y=10;Blockly.BlockSvg.INLINE_PADDING_Y=5;
+Blockly.BlockSvg.MIN_BLOCK_Y=25;Blockly.BlockSvg.TAB_HEIGHT=20;Blockly.BlockSvg.TAB_WIDTH=8;Blockly.BlockSvg.NOTCH_WIDTH=30;Blockly.BlockSvg.CORNER_RADIUS=8;Blockly.BlockSvg.FIELD_HEIGHT=18;Blockly.BlockSvg.DISTANCE_45_INSIDE=(1-Math.SQRT1_2)*(Blockly.BlockSvg.CORNER_RADIUS-1)+1;Blockly.BlockSvg.DISTANCE_45_OUTSIDE=(1-Math.SQRT1_2)*(Blockly.BlockSvg.CORNER_RADIUS+1)-1;Blockly.BlockSvg.NOTCH_PATH_LEFT="l 6,4 3,0 6,-4";Blockly.BlockSvg.NOTCH_PATH_LEFT_HIGHLIGHT="l 6.5,4 2,0 6.5,-4";
+Blockly.BlockSvg.NOTCH_PATH_RIGHT="l -6,4 -3,0 -6,-4";Blockly.BlockSvg.JAGGED_TEETH="l 8,0 0,4 8,4 -16,8 8,4";Blockly.BlockSvg.JAGGED_TEETH_HEIGHT=20;Blockly.BlockSvg.JAGGED_TEETH_WIDTH=15;Blockly.BlockSvg.TAB_PATH_DOWN="v 5 c 0,10 -"+Blockly.BlockSvg.TAB_WIDTH+",-8 -"+Blockly.BlockSvg.TAB_WIDTH+",7.5 s "+Blockly.BlockSvg.TAB_WIDTH+",-2.5 "+Blockly.BlockSvg.TAB_WIDTH+",7.5";
+Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL="v 6.5 m -"+.98*Blockly.BlockSvg.TAB_WIDTH+",2.5 q -"+.05*Blockly.BlockSvg.TAB_WIDTH+",10 "+.27*Blockly.BlockSvg.TAB_WIDTH+",10 m "+.71*Blockly.BlockSvg.TAB_WIDTH+",-2.5 v 1.5";Blockly.BlockSvg.TOP_LEFT_CORNER_START="m 0,"+Blockly.BlockSvg.CORNER_RADIUS;Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_RTL="m "+Blockly.BlockSvg.DISTANCE_45_INSIDE+","+Blockly.BlockSvg.DISTANCE_45_INSIDE;
+Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_LTR="m 1,"+(Blockly.BlockSvg.CORNER_RADIUS-1);Blockly.BlockSvg.TOP_LEFT_CORNER="A "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,1 "+Blockly.BlockSvg.CORNER_RADIUS+",0";Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT="A "+(Blockly.BlockSvg.CORNER_RADIUS-1)+","+(Blockly.BlockSvg.CORNER_RADIUS-1)+" 0 0,1 "+Blockly.BlockSvg.CORNER_RADIUS+",1";
+Blockly.BlockSvg.INNER_TOP_LEFT_CORNER=Blockly.BlockSvg.NOTCH_PATH_RIGHT+" h -"+(Blockly.BlockSvg.NOTCH_WIDTH-15-Blockly.BlockSvg.CORNER_RADIUS)+" a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 -"+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS;Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER="a "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,0 "+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS;
+Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL="a "+(Blockly.BlockSvg.CORNER_RADIUS+1)+","+(Blockly.BlockSvg.CORNER_RADIUS+1)+" 0 0,0 "+(-Blockly.BlockSvg.DISTANCE_45_OUTSIDE-1)+","+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE);Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL="a "+(Blockly.BlockSvg.CORNER_RADIUS+1)+","+(Blockly.BlockSvg.CORNER_RADIUS+1)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS+1)+","+(Blockly.BlockSvg.CORNER_RADIUS+1);
+Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR="a "+(Blockly.BlockSvg.CORNER_RADIUS+1)+","+(Blockly.BlockSvg.CORNER_RADIUS+1)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)+","+(Blockly.BlockSvg.DISTANCE_45_OUTSIDE+1);
+Blockly.BlockSvg.prototype.dispose=function(a,b,c){Blockly.terminateDrag_();Blockly.ContextMenu.currentBlock==this&&Blockly.ContextMenu.hide();this.unplug(a,!1);b&&this.rendered&&this.disposeUiEffect();this.rendered=!1;b=this.getIcons();for(c=0;c<b.length;c++)b[c].dispose();Blockly.BlockSvg.superClass_.dispose.call(this,a);goog.dom.removeNode(this.svgGroup_);this.svgPathDark_=this.svgPathLight_=this.svgPath_=this.svgGroup_=null};
+Blockly.BlockSvg.prototype.disposeUiEffect=function(){Blockly.playAudio("delete");var a=Blockly.getSvgXY_(this.svgGroup_),b=this.svgGroup_.cloneNode(!0);b.translateX_=a.x;b.translateY_=a.y;b.setAttribute("transform","translate("+b.translateX_+","+b.translateY_+")");Blockly.svg.appendChild(b);b.bBox_=b.getBBox();b.startDate_=new Date;Blockly.BlockSvg.disposeUiStep_(b)};
+Blockly.BlockSvg.disposeUiStep_=function(a){var b=(new Date-a.startDate_)/150;1<b?goog.dom.removeNode(a):(a.setAttribute("transform","translate("+(a.translateX_+(Blockly.RTL?-1:1)*a.bBox_.width/2*b+", "+(a.translateY_+a.bBox_.height*b))+") scale("+(1-b)+")"),window.setTimeout(function(){Blockly.BlockSvg.disposeUiStep_(a)},10))};
+Blockly.BlockSvg.prototype.connectionUiEffect=function(){Blockly.playAudio("click");var a=Blockly.getSvgXY_(this.svgGroup_);this.outputConnection?(a.x+=Blockly.RTL?3:-3,a.y+=13):this.previousConnection&&(a.x+=Blockly.RTL?-23:23,a.y+=3);a=Blockly.createSvgElement("circle",{cx:a.x,cy:a.y,r:0,fill:"none",stroke:"#888","stroke-width":10},Blockly.svg);a.startDate_=new Date;Blockly.BlockSvg.connectionUiStep_(a)};
+Blockly.BlockSvg.connectionUiStep_=function(a){var b=(new Date-a.startDate_)/150;1<b?goog.dom.removeNode(a):(a.setAttribute("r",25*b),a.style.opacity=1-b,window.setTimeout(function(){Blockly.BlockSvg.connectionUiStep_(a)},10))};
+Blockly.BlockSvg.prototype.updateColour=function(){if(!this.disabled){var a=Blockly.makeColour(this.getColour()),b=goog.color.hexToRgb(a),c=goog.color.lighten(b,.3),b=goog.color.darken(b,.4);this.svgPathLight_.setAttribute("stroke",goog.color.rgbArrayToHex(c));this.svgPathDark_.setAttribute("fill",goog.color.rgbArrayToHex(b));this.svgPath_.setAttribute("fill",a);c=this.getIcons();for(a=0;a<c.length;a++)c[a].updateColour();for(a=0;c=this.inputList[a];a++)for(var b=0,d;d=c.fieldRow[b];b++)d.setText(null);
+this.rendered&&this.render()}};Blockly.BlockSvg.prototype.updateDisabled=function(){this.disabled||this.getInheritedDisabled()?(Blockly.addClass_(this.svgGroup_,"blocklyDisabled"),this.svgPath_.setAttribute("fill","url(#blocklyDisabledPattern)")):(Blockly.removeClass_(this.svgGroup_,"blocklyDisabled"),this.updateColour());for(var a=this.getChildren(),b=0,c;c=a[b];b++)c.updateDisabled()};
+Blockly.BlockSvg.prototype.getCommentText=function(){return this.comment?this.comment.getText().replace(/\s+$/,"").replace(/ +\n/g,"\n"):""};Blockly.BlockSvg.prototype.setCommentText=function(a){var b=!1;goog.isString(a)?(this.comment||(this.comment=new Blockly.Comment(this),b=!0),this.comment.setText(a)):this.comment&&(this.comment.dispose(),b=!0);b&&this.rendered&&(this.render(),this.bumpNeighbours_())};
+Blockly.BlockSvg.prototype.setWarningText=function(a){this.isInFlyout&&(a=null);var b=!1;goog.isString(a)?(this.warning||(this.warning=new Blockly.Warning(this),b=!0),this.warning.setText(a)):this.warning&&(this.warning.dispose(),b=!0);b&&this.rendered&&(this.render(),this.bumpNeighbours_())};Blockly.BlockSvg.prototype.setMutator=function(a){this.mutator&&this.mutator!==a&&this.mutator.dispose();a&&(a.block_=this,this.mutator=a,this.rendered&&a.createIcon())};
+Blockly.BlockSvg.prototype.setDisabled=function(a){this.disabled!=a&&(Blockly.BlockSvg.superClass_.setDisabled.call(this,a),this.updateDisabled(),this.workspace.fireChangeEvent())};Blockly.BlockSvg.prototype.addSelect=function(){Blockly.addClass_(this.svgGroup_,"blocklySelected");this.svgGroup_.parentNode.appendChild(this.svgGroup_)};Blockly.BlockSvg.prototype.removeSelect=function(){Blockly.removeClass_(this.svgGroup_,"blocklySelected")};
+Blockly.BlockSvg.prototype.addDragging=function(){Blockly.addClass_(this.svgGroup_,"blocklyDragging")};Blockly.BlockSvg.prototype.removeDragging=function(){Blockly.removeClass_(this.svgGroup_,"blocklyDragging")};
+Blockly.BlockSvg.prototype.render=function(){this.rendered=!0;var a=Blockly.BlockSvg.SEP_SPACE_X;Blockly.RTL&&(a=-a);for(var b=this.getIcons(),c=0;c<b.length;c++)a=b[c].renderIcon(a);a+=Blockly.RTL?Blockly.BlockSvg.SEP_SPACE_X:-Blockly.BlockSvg.SEP_SPACE_X;b=this.renderCompute_(a);this.renderDraw_(a,b);(a=this.getParent())?a.render():Blockly.fireUiEvent(window,"resize");Blockly.Realtime.blockChanged(this)};
+Blockly.BlockSvg.prototype.renderFields_=function(a,b,c){Blockly.RTL&&(b=-b);for(var d=0,e;e=a[d];d++)Blockly.RTL?(b-=e.renderSep+e.renderWidth,e.getSvgRoot().setAttribute("transform","translate("+b+", "+c+")"),e.renderWidth&&(b-=Blockly.BlockSvg.SEP_SPACE_X)):(e.getSvgRoot().setAttribute("transform","translate("+(b+e.renderSep)+", "+c+")"),e.renderWidth&&(b+=e.renderSep+e.renderWidth+Blockly.BlockSvg.SEP_SPACE_X));return Blockly.RTL?-b:b};
+Blockly.BlockSvg.prototype.renderCompute_=function(a){var b=this.inputList,c=[];c.rightEdge=a+2*Blockly.BlockSvg.SEP_SPACE_X;if(this.previousConnection||this.nextConnection)c.rightEdge=Math.max(c.rightEdge,Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.SEP_SPACE_X);for(var d=0,e=0,f=!1,g=!1,h=!1,k=void 0,l=this.inputsInline&&!this.isCollapsed(),p=0,n;n=b[p];p++)if(n.isVisible()){var q;l&&k&&k!=Blockly.NEXT_STATEMENT&&n.type!=Blockly.NEXT_STATEMENT?q=c[c.length-1]:(k=n.type,q=[],q.type=l&&n.type!=Blockly.NEXT_STATEMENT?
+Blockly.BlockSvg.INLINE:n.type,q.height=0,c.push(q));q.push(n);n.renderHeight=Blockly.BlockSvg.MIN_BLOCK_Y;n.renderWidth=l&&n.type==Blockly.INPUT_VALUE?Blockly.BlockSvg.TAB_WIDTH+1.25*Blockly.BlockSvg.SEP_SPACE_X:0;if(n.connection&&n.connection.targetConnection){var m=n.connection.targetBlock().getHeightWidth();n.renderHeight=Math.max(n.renderHeight,m.height);n.renderWidth=Math.max(n.renderWidth,m.width)}p==b.length-1&&n.renderHeight--;q.height=Math.max(q.height,n.renderHeight);n.fieldWidth=0;1==
+c.length&&(n.fieldWidth+=Blockly.RTL?-a:a);for(var m=!1,r=0,t;t=n.fieldRow[r];r++){0!=r&&(n.fieldWidth+=Blockly.BlockSvg.SEP_SPACE_X);var u=t.getSize();t.renderWidth=u.width;t.renderSep=m&&t.EDITABLE?Blockly.BlockSvg.SEP_SPACE_X:0;n.fieldWidth+=t.renderWidth+t.renderSep;q.height=Math.max(q.height,u.height);m=t.EDITABLE}q.type!=Blockly.BlockSvg.INLINE&&(q.type==Blockly.NEXT_STATEMENT?(g=!0,e=Math.max(e,n.fieldWidth)):(q.type==Blockly.INPUT_VALUE?f=!0:q.type==Blockly.DUMMY_INPUT&&(h=!0),d=Math.max(d,
+n.fieldWidth)))}for(a=0;q=c[a];a++)if(q.thicker=!1,q.type==Blockly.BlockSvg.INLINE)for(b=0;n=q[b];b++)if(n.type==Blockly.INPUT_VALUE){q.height+=2*Blockly.BlockSvg.INLINE_PADDING_Y;q.thicker=!0;break}c.statementEdge=2*Blockly.BlockSvg.SEP_SPACE_X+e;g&&(c.rightEdge=Math.max(c.rightEdge,c.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH));f?c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X+Blockly.BlockSvg.TAB_WIDTH):h&&(c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X));c.hasValue=
+f;c.hasStatement=g;c.hasDummy=h;return c};
+Blockly.BlockSvg.prototype.renderDraw_=function(a,b){if(this.outputConnection)this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!0;else{this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!1;if(this.previousConnection){var c=this.previousConnection.targetBlock();c&&c.getNextBlock()==this&&(this.squareTopLeftCorner_=!0)}this.getNextBlock()&&(this.squareBottomLeftCorner_=!0)}var d=this.getRelativeToSurfaceXY(),e=[],f=[],c=[],g=[];this.renderDrawTop_(e,c,d,b.rightEdge);var h=this.renderDrawRight_(e,
+c,f,g,d,b,a);this.renderDrawBottom_(e,c,d,h);this.renderDrawLeft_(e,c,d,h);d=e.join(" ")+"\n"+f.join(" ");this.svgPath_.setAttribute("d",d);this.svgPathDark_.setAttribute("d",d);d=c.join(" ")+"\n"+g.join(" ");this.svgPathLight_.setAttribute("d",d);Blockly.RTL&&(this.svgPath_.setAttribute("transform","scale(-1 1)"),this.svgPathLight_.setAttribute("transform","scale(-1 1)"),this.svgPathDark_.setAttribute("transform","translate(1,1) scale(-1 1)"))};
+Blockly.BlockSvg.prototype.renderDrawTop_=function(a,b,c,d){this.squareTopLeftCorner_?(a.push("m 0,0"),b.push("m 1,1")):(a.push(Blockly.BlockSvg.TOP_LEFT_CORNER_START),b.push(Blockly.RTL?Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_RTL:Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_LTR),a.push(Blockly.BlockSvg.TOP_LEFT_CORNER),b.push(Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT));this.previousConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH-15),b.push("H",Blockly.BlockSvg.NOTCH_WIDTH-15),
+a.push(Blockly.BlockSvg.NOTCH_PATH_LEFT),b.push(Blockly.BlockSvg.NOTCH_PATH_LEFT_HIGHLIGHT),this.previousConnection.moveTo(c.x+(Blockly.RTL?-Blockly.BlockSvg.NOTCH_WIDTH:Blockly.BlockSvg.NOTCH_WIDTH),c.y));a.push("H",d);b.push("H",d+(Blockly.RTL?-1:0));this.width=d};
+Blockly.BlockSvg.prototype.renderDrawRight_=function(a,b,c,d,e,f,g){for(var h,k=0,l,p,n=0,q;q=f[n];n++){h=Blockly.BlockSvg.SEP_SPACE_X;0==n&&(h+=Blockly.RTL?-g:g);b.push("M",f.rightEdge-1+","+(k+1));if(this.isCollapsed()){var m=q[0];l=k+Blockly.BlockSvg.FIELD_HEIGHT;this.renderFields_(m.fieldRow,h,l);a.push(Blockly.BlockSvg.JAGGED_TEETH);Blockly.RTL?b.push("l 8,0 0,3.8 7,3.2 m -14.5,9 l 8,4"):b.push("h 8");m=q.height-Blockly.BlockSvg.JAGGED_TEETH_HEIGHT;a.push("v",m);Blockly.RTL&&b.push("v",m-2);
+this.width+=Blockly.BlockSvg.JAGGED_TEETH_WIDTH}else if(q.type==Blockly.BlockSvg.INLINE){for(var r=0;m=q[r];r++)l=k+Blockly.BlockSvg.FIELD_HEIGHT,q.thicker&&(l+=Blockly.BlockSvg.INLINE_PADDING_Y),h=this.renderFields_(m.fieldRow,h,l),m.type!=Blockly.DUMMY_INPUT&&(h+=m.renderWidth+Blockly.BlockSvg.SEP_SPACE_X),m.type==Blockly.INPUT_VALUE&&(c.push("M",h-Blockly.BlockSvg.SEP_SPACE_X+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y)),c.push("h",Blockly.BlockSvg.TAB_WIDTH-2-m.renderWidth),c.push(Blockly.BlockSvg.TAB_PATH_DOWN),
+c.push("v",m.renderHeight+1-Blockly.BlockSvg.TAB_HEIGHT),c.push("h",m.renderWidth+2-Blockly.BlockSvg.TAB_WIDTH),c.push("z"),Blockly.RTL?(d.push("M",h-Blockly.BlockSvg.SEP_SPACE_X-3+Blockly.BlockSvg.TAB_WIDTH-m.renderWidth+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y+1)),d.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),d.push("v",m.renderHeight-Blockly.BlockSvg.TAB_HEIGHT+3),d.push("h",m.renderWidth-Blockly.BlockSvg.TAB_WIDTH+1)):(d.push("M",h-Blockly.BlockSvg.SEP_SPACE_X+1+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y+
+1)),d.push("v",m.renderHeight+1),d.push("h",Blockly.BlockSvg.TAB_WIDTH-2-m.renderWidth),d.push("M",h-m.renderWidth-Blockly.BlockSvg.SEP_SPACE_X+1.8+","+(k+Blockly.BlockSvg.INLINE_PADDING_Y+Blockly.BlockSvg.TAB_HEIGHT-.4)),d.push("l",.38*Blockly.BlockSvg.TAB_WIDTH+",-1.8")),l=Blockly.RTL?e.x-h-Blockly.BlockSvg.TAB_WIDTH+Blockly.BlockSvg.SEP_SPACE_X+m.renderWidth+1:e.x+h+Blockly.BlockSvg.TAB_WIDTH-Blockly.BlockSvg.SEP_SPACE_X-m.renderWidth-1,p=e.y+k+Blockly.BlockSvg.INLINE_PADDING_Y+1,m.connection.moveTo(l,
+p),m.connection.targetConnection&&m.connection.tighten_());h=Math.max(h,f.rightEdge);this.width=Math.max(this.width,h);a.push("H",h);b.push("H",h+(Blockly.RTL?-1:0));a.push("v",q.height);Blockly.RTL&&b.push("v",q.height-2)}else q.type==Blockly.INPUT_VALUE?(m=q[0],l=k+Blockly.BlockSvg.FIELD_HEIGHT,m.align!=Blockly.ALIGN_LEFT&&(r=f.rightEdge-m.fieldWidth-Blockly.BlockSvg.TAB_WIDTH-2*Blockly.BlockSvg.SEP_SPACE_X,m.align==Blockly.ALIGN_RIGHT?h+=r:m.align==Blockly.ALIGN_CENTRE&&(h+=(r+h)/2)),this.renderFields_(m.fieldRow,
+h,l),a.push(Blockly.BlockSvg.TAB_PATH_DOWN),r=q.height-Blockly.BlockSvg.TAB_HEIGHT,a.push("v",r),Blockly.RTL?(b.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),b.push("v",r)):(b.push("M",f.rightEdge-4.2+","+(k+Blockly.BlockSvg.TAB_HEIGHT-.4)),b.push("l",.38*Blockly.BlockSvg.TAB_WIDTH+",-1.8")),l=e.x+(Blockly.RTL?-f.rightEdge-1:f.rightEdge+1),p=e.y+k,m.connection.moveTo(l,p),m.connection.targetConnection&&(m.connection.tighten_(),this.width=Math.max(this.width,f.rightEdge+m.connection.targetBlock().getHeightWidth().width-
+Blockly.BlockSvg.TAB_WIDTH+1))):q.type==Blockly.DUMMY_INPUT?(m=q[0],l=k+Blockly.BlockSvg.FIELD_HEIGHT,m.align!=Blockly.ALIGN_LEFT&&(r=f.rightEdge-m.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,f.hasValue&&(r-=Blockly.BlockSvg.TAB_WIDTH),m.align==Blockly.ALIGN_RIGHT?h+=r:m.align==Blockly.ALIGN_CENTRE&&(h+=(r+h)/2)),this.renderFields_(m.fieldRow,h,l),a.push("v",q.height),Blockly.RTL&&b.push("v",q.height-2)):q.type==Blockly.NEXT_STATEMENT&&(m=q[0],0==n&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),Blockly.RTL&&
+b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),k+=Blockly.BlockSvg.SEP_SPACE_Y),l=k+Blockly.BlockSvg.FIELD_HEIGHT,m.align!=Blockly.ALIGN_LEFT&&(r=f.statementEdge-m.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,m.align==Blockly.ALIGN_RIGHT?h+=r:m.align==Blockly.ALIGN_CENTRE&&(h+=(r+h)/2)),this.renderFields_(m.fieldRow,h,l),h=f.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH,a.push("H",h),a.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER),a.push("v",q.height-2*Blockly.BlockSvg.CORNER_RADIUS),a.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER),
+a.push("H",f.rightEdge),Blockly.RTL?(b.push("M",h-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(k+Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),b.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL),b.push("v",q.height-2*Blockly.BlockSvg.CORNER_RADIUS),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL),b.push("H",f.rightEdge-1)):(b.push("M",h-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(k+q.height-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),
+b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR),b.push("H",f.rightEdge)),l=e.x+(Blockly.RTL?-h:h),p=e.y+k+1,m.connection.moveTo(l,p),m.connection.targetConnection&&(m.connection.tighten_(),this.width=Math.max(this.width,f.statementEdge+m.connection.targetBlock().getHeightWidth().width)),n==f.length-1||f[n+1].type==Blockly.NEXT_STATEMENT)&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),Blockly.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),k+=Blockly.BlockSvg.SEP_SPACE_Y);k+=q.height}f.length||
+(k=Blockly.BlockSvg.MIN_BLOCK_Y,a.push("V",k),Blockly.RTL&&b.push("V",k-1));return k};
+Blockly.BlockSvg.prototype.renderDrawBottom_=function(a,b,c,d){this.height=d+1;this.nextConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH+" "+Blockly.BlockSvg.NOTCH_PATH_RIGHT),this.nextConnection.moveTo(Blockly.RTL?c.x-Blockly.BlockSvg.NOTCH_WIDTH:c.x+Blockly.BlockSvg.NOTCH_WIDTH,c.y+d+1),this.nextConnection.targetConnection&&this.nextConnection.tighten_(),this.height+=4);this.squareBottomLeftCorner_?(a.push("H 0"),Blockly.RTL||b.push("M","1,"+d)):(a.push("H",Blockly.BlockSvg.CORNER_RADIUS),a.push("a",
+Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+" 0 0,1 -"+Blockly.BlockSvg.CORNER_RADIUS+",-"+Blockly.BlockSvg.CORNER_RADIUS),Blockly.RTL||(b.push("M",Blockly.BlockSvg.DISTANCE_45_INSIDE+","+(d-Blockly.BlockSvg.DISTANCE_45_INSIDE)),b.push("A",Blockly.BlockSvg.CORNER_RADIUS-1+","+(Blockly.BlockSvg.CORNER_RADIUS-1)+" 0 0,1 1,"+(d-Blockly.BlockSvg.CORNER_RADIUS))))};
+Blockly.BlockSvg.prototype.renderDrawLeft_=function(a,b,c,d){this.outputConnection?(this.outputConnection.moveTo(c.x,c.y),a.push("V",Blockly.BlockSvg.TAB_HEIGHT),a.push("c 0,-10 -"+Blockly.BlockSvg.TAB_WIDTH+",8 -"+Blockly.BlockSvg.TAB_WIDTH+",-7.5 s "+Blockly.BlockSvg.TAB_WIDTH+",2.5 "+Blockly.BlockSvg.TAB_WIDTH+",-7.5"),Blockly.RTL?(b.push("M",-.3*Blockly.BlockSvg.TAB_WIDTH+",8.9"),b.push("l",-.45*Blockly.BlockSvg.TAB_WIDTH+",-2.1")):(b.push("V",Blockly.BlockSvg.TAB_HEIGHT-1),b.push("m",-.92*Blockly.BlockSvg.TAB_WIDTH+
+",-1 q "+-.19*Blockly.BlockSvg.TAB_WIDTH+",-5.5 0,-11"),b.push("m",.92*Blockly.BlockSvg.TAB_WIDTH+",1 V 1 H 2")),this.width+=Blockly.BlockSvg.TAB_WIDTH):Blockly.RTL||(this.squareTopLeftCorner_?b.push("V",1):b.push("V",Blockly.BlockSvg.CORNER_RADIUS));a.push("z")};
+// Copyright 2013 Google Inc.  Apache License 2.0
+Blockly.Msg={};
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.FieldTextInput=function(a,b){Blockly.FieldTextInput.superClass_.constructor.call(this,a);this.changeHandler_=b};goog.inherits(Blockly.FieldTextInput,Blockly.Field);Blockly.FieldTextInput.prototype.clone=function(){return new Blockly.FieldTextInput(this.getText(),this.changeHandler_)};Blockly.FieldTextInput.prototype.CURSOR="text";Blockly.FieldTextInput.prototype.dispose=function(){Blockly.WidgetDiv.hideIfOwner(this);Blockly.FieldTextInput.superClass_.dispose.call(this)};
-Blockly.FieldTextInput.prototype.setText=function(a){if(null!==a){if(this.changeHandler_){var b=this.changeHandler_(a);null!==b&&void 0!==b&&(a=b)}Blockly.Field.prototype.setText.call(this,a)}};
-Blockly.FieldTextInput.prototype.showEditor_=function(a){var b=a||!1;if(!b&&(goog.userAgent.MOBILE||goog.userAgent.ANDROID||goog.userAgent.IPAD))a=window.prompt(Blockly.Msg.CHANGE_VALUE_TITLE,this.text_),this.changeHandler_&&(b=this.changeHandler_(a),void 0!==b&&(a=b)),null!==a&&this.setText(a);else{Blockly.WidgetDiv.show(this,this.widgetDispose_());var c=Blockly.WidgetDiv.DIV;a=goog.dom.createDom("input","blocklyHtmlInput");Blockly.FieldTextInput.htmlInput_=a;c.appendChild(a);a.value=a.defaultValue=
-this.text_;a.oldValue_=null;this.validate_();this.resizeEditor_();b||(a.focus(),a.select());a.onKeyUpWrapper_=Blockly.bindEvent_(a,"keyup",this,this.onHtmlInputChange_);a.onKeyPressWrapper_=Blockly.bindEvent_(a,"keypress",this,this.onHtmlInputChange_);b=this.sourceBlock_.workspace.getCanvas();a.onWorkspaceChangeWrapper_=Blockly.bindEvent_(b,"blocklyWorkspaceChange",this,this.resizeEditor_)}};
+Blockly.FieldTextInput.prototype.setText=function(a){if(null!==a){if(this.sourceBlock_&&this.changeHandler_){var b=this.changeHandler_(a);null!==b&&void 0!==b&&(a=b)}Blockly.Field.prototype.setText.call(this,a)}};
+Blockly.FieldTextInput.prototype.showEditor_=function(a){var b=a||!1;if(!b&&(goog.userAgent.MOBILE||goog.userAgent.ANDROID||goog.userAgent.IPAD))a=window.prompt(Blockly.Msg.CHANGE_VALUE_TITLE,this.text_),this.sourceBlock_&&this.changeHandler_&&(b=this.changeHandler_(a),void 0!==b&&(a=b)),null!==a&&this.setText(a);else{Blockly.WidgetDiv.show(this,this.widgetDispose_());var c=Blockly.WidgetDiv.DIV;a=goog.dom.createDom("input","blocklyHtmlInput");Blockly.FieldTextInput.htmlInput_=a;c.appendChild(a);
+a.value=a.defaultValue=this.text_;a.oldValue_=null;this.validate_();this.resizeEditor_();b||(a.focus(),a.select());a.onKeyUpWrapper_=Blockly.bindEvent_(a,"keyup",this,this.onHtmlInputChange_);a.onKeyPressWrapper_=Blockly.bindEvent_(a,"keypress",this,this.onHtmlInputChange_);b=this.sourceBlock_.workspace.getCanvas();a.onWorkspaceChangeWrapper_=Blockly.bindEvent_(b,"blocklyWorkspaceChange",this,this.resizeEditor_)}};
 Blockly.FieldTextInput.prototype.onHtmlInputChange_=function(a){var b=Blockly.FieldTextInput.htmlInput_;13==a.keyCode?Blockly.WidgetDiv.hide():27==a.keyCode?(this.setText(b.defaultValue),Blockly.WidgetDiv.hide()):(a=b.value,a!==b.oldValue_?(b.oldValue_=a,this.setText(a),this.validate_()):goog.userAgent.WEBKIT&&this.sourceBlock_.render())};
-Blockly.FieldTextInput.prototype.validate_=function(){var a=!0;goog.asserts.assertObject(Blockly.FieldTextInput.htmlInput_);var b=Blockly.FieldTextInput.htmlInput_;this.changeHandler_&&(a=this.changeHandler_(b.value));null===a?Blockly.addClass_(b,"blocklyInvalidInput"):Blockly.removeClass_(b,"blocklyInvalidInput")};
+Blockly.FieldTextInput.prototype.validate_=function(){var a=!0;goog.asserts.assertObject(Blockly.FieldTextInput.htmlInput_);var b=Blockly.FieldTextInput.htmlInput_;this.sourceBlock_&&this.changeHandler_&&(a=this.changeHandler_(b.value));null===a?Blockly.addClass_(b,"blocklyInvalidInput"):Blockly.removeClass_(b,"blocklyInvalidInput")};
 Blockly.FieldTextInput.prototype.resizeEditor_=function(){var a=Blockly.WidgetDiv.DIV,b=this.fieldGroup_.getBBox();a.style.width=b.width+"px";b=Blockly.getAbsoluteXY_(this.borderRect_);if(Blockly.RTL){var c=this.borderRect_.getBBox();b.x+=c.width;b.x-=a.offsetWidth}b.y+=1;goog.userAgent.WEBKIT&&(b.y-=3);a.style.left=b.x+"px";a.style.top=b.y+"px"};
-Blockly.FieldTextInput.prototype.widgetDispose_=function(){var a=this;return function(){var b=Blockly.FieldTextInput.htmlInput_,c=b.value;a.changeHandler_&&(c=a.changeHandler_(c),null===c&&(c=b.defaultValue));a.setText(c);a.sourceBlock_.rendered&&a.sourceBlock_.render();Blockly.unbindEvent_(b.onKeyUpWrapper_);Blockly.unbindEvent_(b.onKeyPressWrapper_);Blockly.unbindEvent_(b.onWorkspaceChangeWrapper_);Blockly.FieldTextInput.htmlInput_=null;Blockly.WidgetDiv.DIV.style.width="auto"}};
+Blockly.FieldTextInput.prototype.widgetDispose_=function(){var a=this;return function(){var b=Blockly.FieldTextInput.htmlInput_,c=b.value;a.sourceBlock_&&a.changeHandler_&&(c=a.changeHandler_(c),null===c&&(c=b.defaultValue));a.setText(c);a.sourceBlock_.rendered&&a.sourceBlock_.render();Blockly.unbindEvent_(b.onKeyUpWrapper_);Blockly.unbindEvent_(b.onKeyPressWrapper_);Blockly.unbindEvent_(b.onWorkspaceChangeWrapper_);Blockly.FieldTextInput.htmlInput_=null;Blockly.WidgetDiv.DIV.style.width="auto"}};
 Blockly.FieldTextInput.numberValidator=function(a){if(null===a)return null;a=a.replace(/O/ig,"0");a=a.replace(/,/g,"");a=parseFloat(a||0);return isNaN(a)?null:String(a)};Blockly.FieldTextInput.nonnegativeIntegerValidator=function(a){(a=Blockly.FieldTextInput.numberValidator(a))&&(a=String(Math.max(0,Math.floor(a))));return a};
 // Copyright 2013 Google Inc.  Apache License 2.0
 Blockly.FieldAngle=function(a,b){var c;if(b){var d=this;c=function(a){a=Blockly.FieldAngle.angleValidator.call(d,a);null!==a&&b.call(d,a);return a}}else c=Blockly.FieldAngle.angleValidator;this.symbol_=Blockly.createSvgElement("tspan",{},null);this.symbol_.appendChild(document.createTextNode("\u00b0"));Blockly.FieldAngle.superClass_.constructor.call(this,a,c)};goog.inherits(Blockly.FieldAngle,Blockly.FieldTextInput);
@@ -1103,17 +1107,18 @@ Blockly.FieldAngle.prototype.updateGraph_=function(){if(this.gauge_){var a=goog.
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.FieldCheckbox=function(a,b){Blockly.FieldCheckbox.superClass_.constructor.call(this,"");this.changeHandler_=b;this.checkElement_=Blockly.createSvgElement("text",{"class":"blocklyText",x:-3},this.fieldGroup_);var c=document.createTextNode("\u2713");this.checkElement_.appendChild(c);this.setValue(a)};goog.inherits(Blockly.FieldCheckbox,Blockly.Field);Blockly.FieldCheckbox.prototype.clone=function(){return new Blockly.FieldCheckbox(this.getValue(),this.changeHandler_)};
 Blockly.FieldCheckbox.prototype.CURSOR="default";Blockly.FieldCheckbox.prototype.getValue=function(){return String(this.state_).toUpperCase()};Blockly.FieldCheckbox.prototype.setValue=function(a){a="TRUE"==a;this.state_!==a&&(this.state_=a,this.checkElement_.style.display=a?"block":"none",this.sourceBlock_&&this.sourceBlock_.rendered&&this.sourceBlock_.workspace.fireChangeEvent())};
-Blockly.FieldCheckbox.prototype.showEditor_=function(){var a=!this.state_;if(this.changeHandler_){var b=this.changeHandler_(a);void 0!==b&&(a=b)}null!==a&&this.setValue(String(a).toUpperCase())};
+Blockly.FieldCheckbox.prototype.showEditor_=function(){var a=!this.state_;if(this.sourceBlock_&&this.changeHandler_){var b=this.changeHandler_(a);void 0!==b&&(a=b)}null!==a&&this.setValue(String(a).toUpperCase())};
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.FieldColour=function(a,b){Blockly.FieldColour.superClass_.constructor.call(this,"\u00a0\u00a0\u00a0");this.changeHandler_=b;this.borderRect_.style.fillOpacity=1;this.setValue(a)};goog.inherits(Blockly.FieldColour,Blockly.Field);Blockly.FieldColour.prototype.clone=function(){return new Blockly.FieldColour(this.getValue(),this.changeHandler_)};Blockly.FieldColour.prototype.CURSOR="default";Blockly.FieldColour.prototype.dispose=function(){Blockly.WidgetDiv.hideIfOwner(this);Blockly.FieldColour.superClass_.dispose.call(this)};
-Blockly.FieldColour.prototype.getValue=function(){return this.colour_};Blockly.FieldColour.prototype.setValue=function(a){this.colour_=a;this.borderRect_.style.fill=a;this.sourceBlock_&&this.sourceBlock_.rendered&&(Blockly.Realtime.blockChanged(this.sourceBlock_),this.sourceBlock_.workspace.fireChangeEvent())};Blockly.FieldColour.COLOURS=goog.ui.ColorPicker.SIMPLE_GRID_COLORS;Blockly.FieldColour.COLUMNS=7;
+Blockly.FieldColour.prototype.getValue=function(){return this.colour_};Blockly.FieldColour.prototype.setValue=function(a){this.colour_=a;this.borderRect_.style.fill=a;this.sourceBlock_&&this.sourceBlock_.rendered&&(Blockly.Realtime.blockChanged(this.sourceBlock_),this.sourceBlock_.workspace.fireChangeEvent())};Blockly.FieldColour.prototype.getText=function(){var a=this.colour_,b=a.match(/^#(.)\1(.)\2(.)\3$/);b&&(a="#"+b[1]+b[2]+b[3]);return a};Blockly.FieldColour.COLOURS=goog.ui.ColorPicker.SIMPLE_GRID_COLORS;
+Blockly.FieldColour.COLUMNS=7;
 Blockly.FieldColour.prototype.showEditor_=function(){Blockly.WidgetDiv.show(this,Blockly.FieldColour.widgetDispose_);var a=new goog.ui.ColorPicker;a.setSize(Blockly.FieldColour.COLUMNS);a.setColors(Blockly.FieldColour.COLOURS);var b=goog.dom.getViewportSize(),c=goog.style.getViewportPageOffset(document),d=Blockly.getAbsoluteXY_(this.borderRect_),e=this.borderRect_.getBBox();a.render(Blockly.WidgetDiv.DIV);a.setSelectedColor(this.getValue());var f=goog.style.getSize(a.getElement());d.y=d.y+f.height+
-e.height>=b.height+c.y?d.y-(f.height-1):d.y+(e.height-1);Blockly.RTL?(d.x+=e.width,d.x-=f.width,d.x<c.x&&(d.x=c.x)):d.x>b.width+c.x-f.width&&(d.x=b.width+c.x-f.width);Blockly.WidgetDiv.position(d.x,d.y,b,c);var g=this;Blockly.FieldColour.changeEventKey_=goog.events.listen(a,goog.ui.ColorPicker.EventType.CHANGE,function(a){a=a.target.getSelectedColor()||"#000000";Blockly.WidgetDiv.hide();if(g.changeHandler_){var b=g.changeHandler_(a);void 0!==b&&(a=b)}null!==a&&g.setValue(a)})};
+e.height>=b.height+c.y?d.y-(f.height-1):d.y+(e.height-1);Blockly.RTL?(d.x+=e.width,d.x-=f.width,d.x<c.x&&(d.x=c.x)):d.x>b.width+c.x-f.width&&(d.x=b.width+c.x-f.width);Blockly.WidgetDiv.position(d.x,d.y,b,c);var g=this;Blockly.FieldColour.changeEventKey_=goog.events.listen(a,goog.ui.ColorPicker.EventType.CHANGE,function(a){a=a.target.getSelectedColor()||"#000000";Blockly.WidgetDiv.hide();if(g.sourceBlock_&&g.changeHandler_){var b=g.changeHandler_(a);void 0!==b&&(a=b)}null!==a&&g.setValue(a)})};
 Blockly.FieldColour.widgetDispose_=function(){Blockly.FieldColour.changeEventKey_&&goog.events.unlistenByKey(Blockly.FieldColour.changeEventKey_)};
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.FieldDropdown=function(a,b){this.menuGenerator_=a;this.changeHandler_=b;this.trimOptions_();var c=this.getOptions_()[0];this.value_=c[1];this.arrow_=Blockly.createSvgElement("tspan",{},null);this.arrow_.appendChild(document.createTextNode(Blockly.RTL?Blockly.FieldDropdown.ARROW_CHAR+" ":" "+Blockly.FieldDropdown.ARROW_CHAR));Blockly.FieldDropdown.superClass_.constructor.call(this,c[0])};goog.inherits(Blockly.FieldDropdown,Blockly.Field);Blockly.FieldDropdown.CHECKMARK_OVERHANG=25;
 Blockly.FieldDropdown.ARROW_CHAR=goog.userAgent.ANDROID?"\u25bc":"\u25be";Blockly.FieldDropdown.prototype.clone=function(){return new Blockly.FieldDropdown(this.menuGenerator_,this.changeHandler_)};Blockly.FieldDropdown.prototype.CURSOR="default";
-Blockly.FieldDropdown.prototype.showEditor_=function(){Blockly.WidgetDiv.show(this,null);for(var a=this,b=new goog.ui.Menu,c=this.getOptions_(),d=0;d<c.length;d++){var e=c[d][1],f=new goog.ui.MenuItem(c[d][0]);f.setValue(e);f.setCheckable(!0);b.addChild(f,!0);f.setChecked(e==this.value_)}goog.events.listen(b,goog.ui.Component.EventType.ACTION,function(b){if(b=b.target){b=b.getValue();if(a.changeHandler_){var c=a.changeHandler_(b);void 0!==c&&(b=c)}null!==b&&a.setValue(b)}Blockly.WidgetDiv.hideIfOwner(a)});
+Blockly.FieldDropdown.prototype.showEditor_=function(){Blockly.WidgetDiv.show(this,null);for(var a=this,b=new goog.ui.Menu,c=this.getOptions_(),d=0;d<c.length;d++){var e=c[d][1],f=new goog.ui.MenuItem(c[d][0]);f.setValue(e);f.setCheckable(!0);b.addChild(f,!0);f.setChecked(e==this.value_)}goog.events.listen(b,goog.ui.Component.EventType.ACTION,function(b){if(b=b.target){b=b.getValue();if(this.sourceBlock_&&a.changeHandler_){var c=a.changeHandler_(b);void 0!==c&&(b=c)}null!==b&&a.setValue(b)}Blockly.WidgetDiv.hideIfOwner(a)});
 b.getHandler().listen(b.getElement(),goog.events.EventType.TOUCHSTART,function(a){this.getOwnerControl(a.target).handleMouseDown(a)});b.getHandler().listen(b.getElement(),goog.events.EventType.TOUCHEND,function(a){this.getOwnerControl(a.target).performActionInternal(a)});c=goog.dom.getViewportSize();d=goog.style.getViewportPageOffset(document);e=Blockly.getAbsoluteXY_(this.borderRect_);f=this.borderRect_.getBBox();b.render(Blockly.WidgetDiv.DIV);var g=b.getElement();Blockly.addClass_(g,"blocklyDropdownMenu");
 var h=goog.style.getSize(g);e.y=e.y+h.height+f.height>=c.height+d.y?e.y-h.height:e.y+f.height;Blockly.RTL?(e.x+=f.width,e.x+=Blockly.FieldDropdown.CHECKMARK_OVERHANG,e.x<d.x+h.width&&(e.x=d.x+h.width)):(e.x-=Blockly.FieldDropdown.CHECKMARK_OVERHANG,e.x>c.width+d.x-h.width&&(e.x=c.width+d.x-h.width));Blockly.WidgetDiv.position(e.x,e.y,c,d);b.setAllowAutoFocus(!0);g.focus()};
 Blockly.FieldDropdown.prototype.trimOptions_=function(){this.suffixField=this.prefixField=null;var a=this.menuGenerator_;if(goog.isArray(a)&&!(2>a.length)){var b=a.map(function(a){return a[0]}),c=Blockly.shortestStringLength(b),d=Blockly.commonWordPrefix(b,c),e=Blockly.commonWordSuffix(b,c);if((d||e)&&!(c<=d+e)){d&&(this.prefixField=b[0].substring(0,d-1));e&&(this.suffixField=b[0].substr(1-e));b=[];for(c=0;c<a.length;c++){var f=a[c][0],g=a[c][1],f=f.substring(d,f.length-e);b[c]=[f,g]}this.menuGenerator_=
@@ -1123,21 +1128,21 @@ Blockly.FieldDropdown.prototype.dispose=function(){Blockly.WidgetDiv.hideIfOwner
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.FieldImage=function(a,b,c,d){this.sourceBlock_=null;this.height_=Number(c);this.width_=Number(b);this.size_={height:this.height_+10,width:this.width_};this.text_=d||"";b=6-Blockly.BlockSvg.FIELD_HEIGHT;this.fieldGroup_=Blockly.createSvgElement("g",{},null);this.imageElement_=Blockly.createSvgElement("image",{height:this.height_+"px",width:this.width_+"px",y:b},this.fieldGroup_);this.setValue(a);goog.userAgent.GECKO&&(this.rectElement_=Blockly.createSvgElement("rect",{height:this.height_+"px",
 width:this.width_+"px",y:b,"fill-opacity":0},this.fieldGroup_))};goog.inherits(Blockly.FieldImage,Blockly.Field);Blockly.FieldImage.prototype.clone=function(){return new Blockly.FieldImage(this.getSrc(),this.width_,this.height_,this.getText())};Blockly.FieldImage.prototype.rectElement_=null;Blockly.FieldImage.prototype.EDITABLE=!1;
-Blockly.FieldImage.prototype.init=function(a){if(this.sourceBlock_)throw"Image has already been initialized once.";this.sourceBlock_=a;a.getSvgRoot().appendChild(this.fieldGroup_);a=this.rectElement_||this.imageElement_;a.tooltip=this.sourceBlock_;Blockly.Tooltip.bindMouseEvents(a)};Blockly.FieldImage.prototype.dispose=function(){goog.dom.removeNode(this.fieldGroup_);this.rectElement_=this.imageElement_=this.fieldGroup_=null};
-Blockly.FieldImage.prototype.setTooltip=function(a){(this.rectElement_||this.imageElement_).tooltip=a};Blockly.FieldImage.prototype.getValue=function(){return this.src_};Blockly.FieldImage.prototype.setValue=function(a){null!==a&&(this.src_=a,this.imageElement_.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",goog.isString(a)?a:""))};Blockly.FieldImage.prototype.setText=function(a){null!==a&&(this.text_=a)};
+Blockly.FieldImage.prototype.init=function(a){this.sourceBlock_||(this.sourceBlock_=a,a.getSvgRoot().appendChild(this.fieldGroup_),a=this.rectElement_||this.imageElement_,a.tooltip=this.sourceBlock_,Blockly.Tooltip.bindMouseEvents(a))};Blockly.FieldImage.prototype.dispose=function(){goog.dom.removeNode(this.fieldGroup_);this.rectElement_=this.imageElement_=this.fieldGroup_=null};Blockly.FieldImage.prototype.setTooltip=function(a){(this.rectElement_||this.imageElement_).tooltip=a};
+Blockly.FieldImage.prototype.getValue=function(){return this.src_};Blockly.FieldImage.prototype.setValue=function(a){null!==a&&(this.src_=a,this.imageElement_.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",goog.isString(a)?a:""))};Blockly.FieldImage.prototype.setText=function(a){null!==a&&(this.text_=a)};Blockly.FieldImage.prototype.render_=function(){};
 // Copyright 2012 Google Inc.  Apache License 2.0
-Blockly.Variables={};Blockly.Variables.NAME_TYPE="VARIABLE";Blockly.Variables.allVariables=function(a){var b;b=a?a.getDescendants():Blockly.mainWorkspace.getAllBlocks();a=Object.create(null);for(var c=0;c<b.length;c++){var d=b[c].getVars;if(d)for(var d=d.call(b[c]),e=0;e<d.length;e++){var f=d[e];f&&(a[f.toLowerCase()]=f)}}b=[];for(var g in a)b.push(a[g]);return b};
-Blockly.Variables.renameVariable=function(a,b){for(var c=Blockly.mainWorkspace.getAllBlocks(),d=0;d<c.length;d++){var e=c[d].renameVar;e&&e.call(c[d],a,b)}};
+Blockly.Variables={};Blockly.Variables.NAME_TYPE="VARIABLE";Blockly.Variables.allVariables=function(a){a=a||Blockly.mainWorkspace;var b;if(a.getDescendants)b=a.getDescendants();else if(a.getAllBlocks)b=a.getAllBlocks();else throw"Not Block or Workspace: "+a;a=Object.create(null);for(var c=0;c<b.length;c++){var d=b[c].getVars;if(d)for(var d=d.call(b[c]),e=0;e<d.length;e++){var f=d[e];f&&(a[f.toLowerCase()]=f)}}b=[];for(var g in a)b.push(a[g]);return b};
+Blockly.Variables.renameVariable=function(a,b,c){c=(c||Blockly.mainWorkspace).getAllBlocks();for(var d=0;d<c.length;d++){var e=c[d].renameVar;e&&e.call(c[d],a,b)}};
 Blockly.Variables.flyoutCategory=function(a,b,c,d){var e=Blockly.Variables.allVariables();e.sort(goog.string.caseInsensitiveCompare);e.unshift(null);for(var f=void 0,g=0;g<e.length;g++)if(e[g]!==f){var h=Blockly.Blocks.variables_get?Blockly.Block.obtain(d,"variables_get"):null;h&&h.initSvg();var k=Blockly.Blocks.variables_set?Blockly.Block.obtain(d,"variables_set"):null;k&&k.initSvg();null===e[g]?f=(h||k).getVars()[0]:(h&&h.setFieldValue(e[g],"VAR"),k&&k.setFieldValue(e[g],"VAR"));k&&a.push(k);h&&
 a.push(h);h&&k?b.push(c,3*c):b.push(2*c)}};Blockly.Variables.generateUniqueName=function(){var a=Blockly.Variables.allVariables(),b="";if(a.length){a.sort(goog.string.caseInsensitiveCompare);for(var c=0,d="i",e=0,f=!1;!b;){e=0;for(f=!1;e<a.length&&!f;)a[e].toLowerCase()==d&&(f=!0),e++;f?("z"===d[0]?(c++,d="a"):(d=String.fromCharCode(d.charCodeAt(0)+1),"l"==d[0]&&(d=String.fromCharCode(d.charCodeAt(0)+1))),0<c&&(d+=c)):b=d}}else b="i";return b};
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.FieldVariable=function(a,b){var c;if(b){var d=this;c=function(a){var c=Blockly.FieldVariable.dropdownChange.call(d,a);a=void 0===c?a:null===c?d.getValue():c;b.call(d,a);return c}}else c=Blockly.FieldVariable.dropdownChange;Blockly.FieldVariable.superClass_.constructor.call(this,Blockly.FieldVariable.dropdownCreate,c);a?this.setValue(a):this.setValue(Blockly.Variables.generateUniqueName())};goog.inherits(Blockly.FieldVariable,Blockly.FieldDropdown);
 Blockly.FieldVariable.prototype.clone=function(){return new Blockly.FieldVariable(this.getValue(),this.changeHandler_)};Blockly.FieldVariable.prototype.getValue=function(){return this.getText()};Blockly.FieldVariable.prototype.setValue=function(a){this.value_=a;this.setText(a)};
-Blockly.FieldVariable.dropdownCreate=function(){var a=Blockly.Variables.allVariables(),b=this.getText();b&&-1==a.indexOf(b)&&a.push(b);a.sort(goog.string.caseInsensitiveCompare);a.push(Blockly.Msg.RENAME_VARIABLE);a.push(Blockly.Msg.NEW_VARIABLE);for(var b=[],c=0;c<a.length;c++)b[c]=[a[c],a[c]];return b};
+Blockly.FieldVariable.dropdownCreate=function(){var a=this.sourceBlock_&&this.sourceBlock_.workspace?Blockly.Variables.allVariables(this.sourceBlock_.workspace):[],b=this.getText();b&&-1==a.indexOf(b)&&a.push(b);a.sort(goog.string.caseInsensitiveCompare);a.push(Blockly.Msg.RENAME_VARIABLE);a.push(Blockly.Msg.NEW_VARIABLE);for(var b=[],c=0;c<a.length;c++)b[c]=[a[c],a[c]];return b};
 Blockly.FieldVariable.dropdownChange=function(a){function b(a,b){Blockly.hideChaff();var c=window.prompt(a,b);return c&&c.replace(/[\s\xa0]+/g," ").replace(/^ | $/g,"")}if(a==Blockly.Msg.RENAME_VARIABLE){var c=this.getText();(a=b(Blockly.Msg.RENAME_VARIABLE_TITLE.replace("%1",c),c))&&Blockly.Variables.renameVariable(c,a);return null}if(a==Blockly.Msg.NEW_VARIABLE)return(a=b(Blockly.Msg.NEW_VARIABLE_TITLE,""))?(Blockly.Variables.renameVariable(a,a),a):null};
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.Generator=function(a){this.name_=a;this.RESERVED_WORDS_="";this.FUNCTION_NAME_PLACEHOLDER_REGEXP_=new RegExp(this.FUNCTION_NAME_PLACEHOLDER_,"g")};Blockly.Generator.NAME_TYPE="generated_function";Blockly.Generator.prototype.INFINITE_LOOP_TRAP=null;Blockly.Generator.prototype.STATEMENT_PREFIX=null;
-Blockly.Generator.prototype.workspaceToCode=function(){var a=[];this.init();for(var b=Blockly.mainWorkspace.getTopBlocks(!0),c=0,d;d=b[c];c++){var e=this.blockToCode(d);goog.isArray(e)&&(e=e[0]);e&&(d.outputConnection&&this.scrubNakedValue&&(e=this.scrubNakedValue(e)),a.push(e))}a=a.join("\n");a=this.finish(a);a=a.replace(/^\s+\n/,"");a=a.replace(/\n\s+$/,"\n");return a=a.replace(/[ \t]+\n/g,"\n")};Blockly.Generator.prototype.prefixLines=function(a,b){return b+a.replace(/\n(.)/g,"\n"+b+"$1")};
+Blockly.Generator.prototype.workspaceToCode=function(a){var b=a||Blockly.mainWorkspace;a=[];this.init(b);for(var b=b.getTopBlocks(!0),c=0,d;d=b[c];c++){var e=this.blockToCode(d);goog.isArray(e)&&(e=e[0]);e&&(d.outputConnection&&this.scrubNakedValue&&(e=this.scrubNakedValue(e)),a.push(e))}a=a.join("\n");a=this.finish(a);a=a.replace(/^\s+\n/,"");a=a.replace(/\n\s+$/,"\n");return a=a.replace(/[ \t]+\n/g,"\n")};Blockly.Generator.prototype.prefixLines=function(a,b){return b+a.replace(/\n(.)/g,"\n"+b+"$1")};
 Blockly.Generator.prototype.allNestedComments=function(a){var b=[];a=a.getDescendants();for(var c=0;c<a.length;c++){var d=a[c].getCommentText();d&&b.push(d)}b.length&&b.push("");return b.join("\n")};
 Blockly.Generator.prototype.blockToCode=function(a){if(!a)return"";if(a.disabled)return this.blockToCode(a.getNextBlock());var b=this[a.type];if(!b)throw'Language "'+this.name_+'" does not know how to generate code for block type "'+a.type+'".';b=b.call(a,a);if(goog.isArray(b))return[this.scrub_(a,b[0]),b[1]];if(goog.isString(b))return this.STATEMENT_PREFIX&&(b=this.STATEMENT_PREFIX.replace(/%1/g,"'"+a.id+"'")+b),this.scrub_(a,b);if(null===b)return"";throw"Invalid code generated: "+b;};
 Blockly.Generator.prototype.valueToCode=function(a,b,c){if(isNaN(c))throw'Expecting valid order from block "'+a.type+'".';a=a.getInputTargetBlock(b);if(!a)return"";var d=this.blockToCode(a);if(""===d)return"";if(!goog.isArray(d))throw'Expecting tuple from value block "'+a.type+'".';b=d[0];d=d[1];if(isNaN(d))throw'Expecting valid order from value block "'+a.type+'".';b&&c<=d&&c!=d&&0!=c&&99!=c&&(b="("+b+")");return b};
@@ -1154,9 +1159,9 @@ Blockly.Procedures.flyoutCategory=function(a,b,c,d){function e(e,f){for(var k=0;
 a.push(f),b.push(2*c));Blockly.Blocks.procedures_ifreturn&&(f=Blockly.Block.obtain(d,"procedures_ifreturn"),f.initSvg(),a.push(f),b.push(2*c));b.length&&(b[b.length-1]=3*c);f=Blockly.Procedures.allProcedures();e(f[0],"procedures_callnoreturn");e(f[1],"procedures_callreturn")};Blockly.Procedures.getCallers=function(a,b){for(var c=[],d=b.getAllBlocks(),e=0;e<d.length;e++){var f=d[e].getProcedureCall;f&&(f=f.call(d[e]))&&Blockly.Names.equals(f,a)&&c.push(d[e])}return c};
 Blockly.Procedures.disposeCallers=function(a,b){for(var c=Blockly.Procedures.getCallers(a,b),d=0;d<c.length;d++)c[d].dispose(!0,!1)};Blockly.Procedures.mutateCallers=function(a,b,c,d){a=Blockly.Procedures.getCallers(a,b);for(b=0;b<a.length;b++)a[b].setProcedureParameters(c,d)};Blockly.Procedures.getDefinition=function(a,b){for(var c=b.getAllBlocks(),d=0;d<c.length;d++){var e=c[d].getProcedureDef;if(e&&(e=e.call(c[d]))&&Blockly.Names.equals(e[0],a))return c[d]}return null};
 // Copyright 2013 Google Inc.  Apache License 2.0
-var rtclient={INSTALL_SCOPE:"https://www.googleapis.com/auth/drive.install",FILE_SCOPE:"https://www.googleapis.com/auth/drive.file",APPDATA_SCOPE:"https://www.googleapis.com/auth/drive.appdata",OPENID_SCOPE:"openid",REALTIME_MIMETYPE:"application/vnd.google-apps.drive-sdk",FOLDER_KEY:"folderId",getParams:function(){function a(a){a=a.slice(1).split("&");for(var c=0;c<a.length;c++){var f=a[c].split("=");b[decodeURIComponent(f[0])]=decodeURIComponent(f[1])}}var b={},c=window.location.hash;c&&a(c);(c=
-window.location.search)&&a(c);return b}};rtclient.params=rtclient.getParams();rtclient.getOption=function(a,b,c){if(a.hasOwnProperty(b))return a[b];void 0===c&&console.error(b+" should be present in the options.");return c};rtclient.Authorizer=function(a){this.clientId=rtclient.getOption(a,"clientId");this.userId=rtclient.params.userId;this.authButton=document.getElementById(rtclient.getOption(a,"authButtonElementId"));this.authDiv=document.getElementById(rtclient.getOption(a,"authDivElementId"))};
-rtclient.Authorizer.prototype.start=function(a){var b=this;gapi.load("auth:client,drive-realtime,drive-share",function(){b.authorize(a)})};
+var rtclient={INSTALL_SCOPE:"https://www.googleapis.com/auth/drive.install",FILE_SCOPE:"https://www.googleapis.com/auth/drive.file",APPDATA_SCOPE:"https://www.googleapis.com/auth/drive.appdata",OPENID_SCOPE:"openid",REALTIME_MIMETYPE:"application/vnd.google-apps.drive-sdk",FOLDER_KEY:"folderId",getParams:function(){function a(a){a=a.slice(1).split("&");for(var c=0;c<a.length;c++){var f=a[c].split("=");b[decodeURIComponent(f[0])]=decodeURIComponent(f[1])}}var b={},c=this.location&&this.location.hash;
+c&&a(c);(c=this.location&&this.location.search)&&a(c);return b}};rtclient.params=rtclient.getParams();rtclient.getOption=function(a,b,c){if(a.hasOwnProperty(b))return a[b];void 0===c&&console.error(b+" should be present in the options.");return c};
+rtclient.Authorizer=function(a){this.clientId=rtclient.getOption(a,"clientId");this.userId=rtclient.params.userId;this.authButton=document.getElementById(rtclient.getOption(a,"authButtonElementId"));this.authDiv=document.getElementById(rtclient.getOption(a,"authDivElementId"))};rtclient.Authorizer.prototype.start=function(a){var b=this;gapi.load("auth:client,drive-realtime,drive-share",function(){b.authorize(a)})};
 rtclient.Authorizer.prototype.authorize=function(a){var b=this.clientId,c=this.userId,d=this,e=function(b){b&&!b.error?(d.authButton.disabled=!0,d.fetchUserId(a),d.authDiv.style.display="none"):(d.authButton.disabled=!1,d.authButton.onclick=f,d.authDiv.style.display="block")},f=function(){gapi.auth.authorize({client_id:b,scope:[rtclient.INSTALL_SCOPE,rtclient.FILE_SCOPE,rtclient.OPENID_SCOPE,rtclient.APPDATA_SCOPE],user_id:c,immediate:!1},e)};gapi.auth.authorize({client_id:b,scope:[rtclient.INSTALL_SCOPE,
 rtclient.FILE_SCOPE,rtclient.OPENID_SCOPE,rtclient.APPDATA_SCOPE],user_id:c,immediate:!0},e)};rtclient.Authorizer.prototype.fetchUserId=function(a){var b=this;gapi.client.load("oauth2","v2",function(){gapi.client.oauth2.userinfo.get().execute(function(c){c.id&&(b.userId=c.id);a&&a()})})};
 rtclient.createRealtimeFile=function(a,b,c,d){function e(c){gapi.client.drive.files.insert({resource:{mimeType:b,title:a,parents:[{id:c}]}}).execute(d)}function f(){function a(b){gapi.client.drive.properties.insert({fileId:"appdata",resource:{key:rtclient.FOLDER_KEY,value:b}}).execute(function(a){e(b)})}function b(){gapi.client.drive.files.insert({resource:{mimeType:"application/vnd.google-apps.folder",title:c}}).execute(function(b){a(b.id)})}gapi.client.drive.properties.get({fileId:"appdata",propertyKey:rtclient.FOLDER_KEY}).execute(function(d){if(d.error)c?
@@ -1193,7 +1198,7 @@ Blockly.Realtime.addAuthUi_=function(a){a.style.background="url("+Blockly.pathTo
 Blockly.Realtime.updateCollabUi_=function(){if(Blockly.Realtime.collabElementId){var a=goog.dom.getElement(Blockly.Realtime.collabElementId);goog.dom.removeChildren(a);for(var b=Blockly.Realtime.document_.getCollaborators(),c=0;c<b.length;c++){var d=b[c],e=goog.dom.createDom("img",{src:d.photoUrl||Blockly.pathToMedia+Blockly.Realtime.ANONYMOUS_URL_,alt:d.displayName,title:d.displayName+(d.isMe?" ("+Blockly.Msg.ME+")":"")});e.style.backgroundColor=d.color;goog.dom.appendChild(a,e)}}};
 Blockly.Realtime.onCollaboratorJoined_=function(a){Blockly.Realtime.updateCollabUi_()};Blockly.Realtime.onCollaboratorLeft_=function(a){Blockly.Realtime.updateCollabUi_()};Blockly.Realtime.doCommand=function(a){a()};Blockly.Realtime.genUid=function(a){var b=Blockly.Realtime.sessionId_+"-"+a;return Blockly.Realtime.blocksMap_.has(b)?Blockly.Realtime.genUid("-"+a):b};
 // Copyright 2011 Google Inc.  Apache License 2.0
-Blockly.Flyout=function(){var a=this;this.workspace_=new Blockly.Workspace(function(){return a.getMetrics_()},function(b){return a.setMetrics_(b)});this.workspace_.isFlyout=!0;this.eventWrappers_=[];this.height_=this.width_=0;this.buttons_=[];this.listeners_=[]};Blockly.Flyout.prototype.autoClose=!0;Blockly.Flyout.prototype.CORNER_RADIUS=8;
+Blockly.Flyout=function(){var a=this;this.workspace_=new Blockly.WorkspaceSvg(function(){return a.getMetrics_()},function(b){return a.setMetrics_(b)});this.workspace_.isFlyout=!0;this.eventWrappers_=[];this.height_=this.width_=0;this.buttons_=[];this.listeners_=[]};Blockly.Flyout.prototype.autoClose=!0;Blockly.Flyout.prototype.CORNER_RADIUS=8;
 Blockly.Flyout.prototype.createDom=function(){this.svgGroup_=Blockly.createSvgElement("g",{},null);this.svgBackground_=Blockly.createSvgElement("path",{"class":"blocklyFlyoutBackground"},this.svgGroup_);this.svgGroup_.appendChild(this.workspace_.createDom());return this.svgGroup_};
 Blockly.Flyout.prototype.dispose=function(){this.hide();Blockly.unbindEvent_(this.eventWrappers_);this.eventWrappers_.length=0;this.scrollbar_&&(this.scrollbar_.dispose(),this.scrollbar_=null);this.workspace_=null;this.svgGroup_&&(goog.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.targetWorkspace_=this.svgBackground_=null};
 Blockly.Flyout.prototype.getMetrics_=function(){if(!this.isVisible())return null;var a=this.height_-2*this.CORNER_RADIUS,b=this.width_;try{var c=this.workspace_.getCanvas().getBBox()}catch(d){c={height:0,y:0}}return{viewHeight:a,viewWidth:b,contentHeight:c.height+c.y,viewTop:-this.workspace_.scrollY,contentTop:0,absoluteTop:this.CORNER_RADIUS,absoluteLeft:0}};
@@ -1206,10 +1211,10 @@ Blockly.Flyout.prototype.wheel_=function(a){var b=a.deltaY||-a.wheelDeltaY;if(b)
 Blockly.Flyout.prototype.hide=function(){if(this.isVisible()){this.svgGroup_.style.display="none";for(var a=0,b;b=this.listeners_[a];a++)Blockly.unbindEvent_(b);this.listeners_.length=0;this.reflowWrapper_&&(Blockly.unbindEvent_(this.reflowWrapper_),this.reflowWrapper_=null)}};
 Blockly.Flyout.prototype.show=function(a){this.hide();for(var b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++)d.workspace==this.workspace_&&d.dispose(!1,!1);for(var c=0,e;e=this.buttons_[c];c++)goog.dom.removeNode(e);this.buttons_.length=0;var f=this.CORNER_RADIUS;this.svgGroup_.style.display="block";var b=[],g=[];if(a==Blockly.Variables.NAME_TYPE)Blockly.Variables.flyoutCategory(b,g,f,this.workspace_);else if(a==Blockly.Procedures.NAME_TYPE)Blockly.Procedures.flyoutCategory(b,g,f,this.workspace_);
 else for(var h=0;d=a[h];h++)d.tagName&&"BLOCK"==d.tagName.toUpperCase()&&(d=Blockly.Xml.domToBlock(this.workspace_,d),b.push(d),g.push(3*f));a=f;for(h=0;d=b[h];h++){c=d.getDescendants();e=0;for(var k;k=c[e];e++)k.isInFlyout=!0,k.setCommentText(null);d.render();k=d.getSvgRoot();e=d.getHeightWidth();c=Blockly.RTL?0:f+Blockly.BlockSvg.TAB_WIDTH;d.moveBy(c,a);a+=e.height+g[h];e=Blockly.createSvgElement("rect",{"fill-opacity":0},null);this.workspace_.getCanvas().insertBefore(e,d.getSvgRoot());d.flyoutRect_=
-e;this.buttons_[h]=e;this.autoClose?this.listeners_.push(Blockly.bindEvent_(k,"mousedown",null,this.createBlockFunc_(d))):this.listeners_.push(Blockly.bindEvent_(k,"mousedown",null,this.blockMouseDown_(d)));this.listeners_.push(Blockly.bindEvent_(k,"mouseover",d.svg_,d.svg_.addSelect));this.listeners_.push(Blockly.bindEvent_(k,"mouseout",d.svg_,d.svg_.removeSelect));this.listeners_.push(Blockly.bindEvent_(e,"mousedown",null,this.createBlockFunc_(d)));this.listeners_.push(Blockly.bindEvent_(e,"mouseover",
-d.svg_,d.svg_.addSelect));this.listeners_.push(Blockly.bindEvent_(e,"mouseout",d.svg_,d.svg_.removeSelect))}this.listeners_.push(Blockly.bindEvent_(this.svgBackground_,"mouseover",this,function(a){a=this.workspace_.getTopBlocks(!1);for(var b=0,c;c=a[b];b++)c.svg_.removeSelect()}));this.width_=0;this.reflow();this.filterForCapacity_();Blockly.fireUiEventNow(window,"resize");this.reflowWrapper_=Blockly.bindEvent_(this.workspace_.getCanvas(),"blocklyWorkspaceChange",this,this.reflow);this.workspace_.fireChangeEvent()};
+e;this.buttons_[h]=e;this.autoClose?this.listeners_.push(Blockly.bindEvent_(k,"mousedown",null,this.createBlockFunc_(d))):this.listeners_.push(Blockly.bindEvent_(k,"mousedown",null,this.blockMouseDown_(d)));this.listeners_.push(Blockly.bindEvent_(k,"mouseover",d,d.addSelect));this.listeners_.push(Blockly.bindEvent_(k,"mouseout",d,d.removeSelect));this.listeners_.push(Blockly.bindEvent_(e,"mousedown",null,this.createBlockFunc_(d)));this.listeners_.push(Blockly.bindEvent_(e,"mouseover",d,d.addSelect));
+this.listeners_.push(Blockly.bindEvent_(e,"mouseout",d,d.removeSelect))}this.listeners_.push(Blockly.bindEvent_(this.svgBackground_,"mouseover",this,function(a){a=this.workspace_.getTopBlocks(!1);for(var b=0,c;c=a[b];b++)c.removeSelect()}));this.width_=0;this.reflow();this.filterForCapacity_();Blockly.fireUiEventNow(window,"resize");this.reflowWrapper_=Blockly.bindEvent_(this.workspace_.getCanvas(),"blocklyWorkspaceChange",this,this.reflow);this.workspace_.fireChangeEvent()};
 Blockly.Flyout.prototype.reflow=function(){for(var a=0,b=this.CORNER_RADIUS,c=this.workspace_.getTopBlocks(!1),d=0,e;e=c[d];d++){e.getSvgRoot();var f=e.getHeightWidth(),a=Math.max(a,f.width)}a+=b+Blockly.BlockSvg.TAB_WIDTH+b/2+Blockly.Scrollbar.scrollbarThickness;if(this.width_!=a){for(d=0;e=c[d];d++){var f=e.getHeightWidth(),g=e.getRelativeToSurfaceXY();if(Blockly.RTL){var h=a-b-Blockly.BlockSvg.TAB_WIDTH-g.x;e.moveBy(h,0);g.x+=h}e.flyoutRect_&&(e.flyoutRect_.setAttribute("width",f.width),e.flyoutRect_.setAttribute("height",
-f.height),e.flyoutRect_.setAttribute("x",Blockly.RTL?g.x-f.width:g.x),e.flyoutRect_.setAttribute("y",g.y))}this.width_=a;Blockly.fireUiEvent(window,"resize")}};Blockly.Block.prototype.moveTo=function(a,b){var c=this.getRelativeToSurfaceXY();this.svg_.getRootElement().setAttribute("transform","translate("+a+", "+b+")");this.moveConnections_(a-c.x,b-c.y)};
+f.height),e.flyoutRect_.setAttribute("x",Blockly.RTL?g.x-f.width:g.x),e.flyoutRect_.setAttribute("y",g.y))}this.width_=a;Blockly.fireUiEvent(window,"resize")}};
 Blockly.Flyout.prototype.blockMouseDown_=function(a){var b=this;return function(c){Blockly.terminateDrag_();Blockly.hideChaff();Blockly.isRightButton(c)?a.showContextMenu_(c):(Blockly.removeAllRanges(),Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED),Blockly.Flyout.startDownEvent_=c,Blockly.Flyout.startBlock_=a,Blockly.Flyout.startFlyout_=b,Blockly.Flyout.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.terminateDrag_),Blockly.Flyout.onMouseMoveBlockWrapper_=Blockly.bindEvent_(document,
 "mousemove",this,b.onMouseMoveBlock_));c.stopPropagation()}};Blockly.Flyout.prototype.onMouseDown_=function(a){Blockly.isRightButton(a)||(Blockly.hideChaff(!0),Blockly.Flyout.terminateDrag_(),this.startDragMouseY_=a.clientY,Blockly.Flyout.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",this,this.onMouseMove_),Blockly.Flyout.onMouseUpWrapper_=Blockly.bindEvent_(document,"mouseup",this,Blockly.Flyout.terminateDrag_),a.preventDefault(),a.stopPropagation())};
 Blockly.Flyout.prototype.onMouseMove_=function(a){var b=a.clientY-this.startDragMouseY_;this.startDragMouseY_=a.clientY;a=this.getMetrics_();b=a.viewTop-b;b=Math.min(b,a.contentHeight-a.viewHeight);b=Math.max(b,0);this.scrollbar_.set(b)};
@@ -1264,10 +1269,10 @@ g;Blockly.readOnly=b;Blockly.maxBlocks=a.maxBlocks||Infinity;a.media?Blockly.pat
 Blockly.createDom_=function(a){a.setAttribute("dir","LTR");goog.ui.Component.setDefaultRightToLeft(Blockly.RTL);Blockly.Css.inject();var b=Blockly.createSvgElement("svg",{xmlns:"http://www.w3.org/2000/svg","xmlns:html":"http://www.w3.org/1999/xhtml","xmlns:xlink":"http://www.w3.org/1999/xlink",version:"1.1","class":"blocklySvg"},null),c=Blockly.createSvgElement("defs",{},b),d,e;d=Blockly.createSvgElement("filter",{id:"blocklyEmboss"},c);Blockly.createSvgElement("feGaussianBlur",{"in":"SourceAlpha",
 stdDeviation:1,result:"blur"},d);e=Blockly.createSvgElement("feSpecularLighting",{"in":"blur",surfaceScale:1,specularConstant:.5,specularExponent:10,"lighting-color":"white",result:"specOut"},d);Blockly.createSvgElement("fePointLight",{x:-5E3,y:-1E4,z:2E4},e);Blockly.createSvgElement("feComposite",{"in":"specOut",in2:"SourceAlpha",operator:"in",result:"specOut"},d);Blockly.createSvgElement("feComposite",{"in":"SourceGraphic",in2:"specOut",operator:"arithmetic",k1:0,k2:1,k3:1,k4:0},d);d=Blockly.createSvgElement("filter",
 {id:"blocklyTrashcanShadowFilter"},c);Blockly.createSvgElement("feGaussianBlur",{"in":"SourceAlpha",stdDeviation:2,result:"blur"},d);Blockly.createSvgElement("feOffset",{"in":"blur",dx:1,dy:1,result:"offsetBlur"},d);d=Blockly.createSvgElement("feMerge",{},d);Blockly.createSvgElement("feMergeNode",{"in":"offsetBlur"},d);Blockly.createSvgElement("feMergeNode",{"in":"SourceGraphic"},d);d=Blockly.createSvgElement("filter",{id:"blocklyShadowFilter"},c);Blockly.createSvgElement("feGaussianBlur",{stdDeviation:2},
-d);c=Blockly.createSvgElement("pattern",{id:"blocklyDisabledPattern",patternUnits:"userSpaceOnUse",width:10,height:10},c);Blockly.createSvgElement("rect",{width:10,height:10,fill:"#aaa"},c);Blockly.createSvgElement("path",{d:"M 0 0 L 10 10 M 10 0 L 0 10",stroke:"#cc0"},c);Blockly.mainWorkspace=new Blockly.Workspace(Blockly.getMainWorkspaceMetrics_,Blockly.setMainWorkspaceMetrics_);b.appendChild(Blockly.mainWorkspace.createDom());Blockly.mainWorkspace.maxBlocks=Blockly.maxBlocks;Blockly.readOnly||
-(Blockly.hasCategories?Blockly.mainWorkspace.toolbox_=new Blockly.Toolbox(b,a):(Blockly.mainWorkspace.flyout_=new Blockly.Flyout,c=Blockly.mainWorkspace.flyout_,d=c.createDom(),c.autoClose=!1,goog.dom.insertSiblingBefore(d,Blockly.mainWorkspace.svgGroup_)),Blockly.hasScrollbars||Blockly.addChangeListener(function(){if(0==Blockly.Block.dragMode_){var a=Blockly.mainWorkspace.getMetrics(),b=a.viewLeft+a.absoluteLeft,c=a.viewTop+a.absoluteTop;if(a.contentTop<c||a.contentTop+a.contentHeight>a.viewHeight+
-c||a.contentLeft<(Blockly.RTL?a.viewLeft:b)||a.contentLeft+a.contentWidth>(Blockly.RTL?a.viewWidth:a.viewWidth+b))for(var d=Blockly.mainWorkspace.getTopBlocks(!1),e=0,p;p=d[e];e++){var n=p.getRelativeToSurfaceXY(),q=p.getHeightWidth(),m=c+25-q.height-n.y;0<m&&p.moveBy(0,m);m=c+a.viewHeight-25-n.y;0>m&&p.moveBy(0,m);m=25+b-n.x-(Blockly.RTL?0:q.width);0<m&&p.moveBy(m,0);m=b+a.viewWidth-25-n.x+(Blockly.RTL?q.width:0);0>m&&p.moveBy(m,0)}}}));b.appendChild(Blockly.Tooltip.createDom());a.appendChild(b);
-Blockly.svg=b;Blockly.svgResize();Blockly.WidgetDiv.DIV=goog.dom.createDom("div","blocklyWidgetDiv");Blockly.WidgetDiv.DIV.style.direction=Blockly.RTL?"rtl":"ltr";document.body.appendChild(Blockly.WidgetDiv.DIV)};
+d);c=Blockly.createSvgElement("pattern",{id:"blocklyDisabledPattern",patternUnits:"userSpaceOnUse",width:10,height:10},c);Blockly.createSvgElement("rect",{width:10,height:10,fill:"#aaa"},c);Blockly.createSvgElement("path",{d:"M 0 0 L 10 10 M 10 0 L 0 10",stroke:"#cc0"},c);Blockly.mainWorkspace=new Blockly.WorkspaceSvg(Blockly.getMainWorkspaceMetrics_,Blockly.setMainWorkspaceMetrics_);b.appendChild(Blockly.mainWorkspace.createDom());Blockly.mainWorkspace.maxBlocks=Blockly.maxBlocks;Blockly.readOnly||
+(Blockly.hasCategories?Blockly.mainWorkspace.toolbox_=new Blockly.Toolbox(b,a):(Blockly.mainWorkspace.flyout_=new Blockly.Flyout,c=Blockly.mainWorkspace.flyout_,d=c.createDom(),c.autoClose=!1,goog.dom.insertSiblingBefore(d,Blockly.mainWorkspace.svgGroup_)),Blockly.hasScrollbars||Blockly.addChangeListener(function(){if(0==Blockly.dragMode_){var a=Blockly.mainWorkspace.getMetrics(),b=a.viewLeft+a.absoluteLeft,c=a.viewTop+a.absoluteTop;if(a.contentTop<c||a.contentTop+a.contentHeight>a.viewHeight+c||
+a.contentLeft<(Blockly.RTL?a.viewLeft:b)||a.contentLeft+a.contentWidth>(Blockly.RTL?a.viewWidth:a.viewWidth+b))for(var d=Blockly.mainWorkspace.getTopBlocks(!1),e=0,p;p=d[e];e++){var n=p.getRelativeToSurfaceXY(),q=p.getHeightWidth(),m=c+25-q.height-n.y;0<m&&p.moveBy(0,m);m=c+a.viewHeight-25-n.y;0>m&&p.moveBy(0,m);m=25+b-n.x-(Blockly.RTL?0:q.width);0<m&&p.moveBy(m,0);m=b+a.viewWidth-25-n.x+(Blockly.RTL?q.width:0);0>m&&p.moveBy(m,0)}}}));b.appendChild(Blockly.Tooltip.createDom());a.appendChild(b);Blockly.svg=
+b;Blockly.svgResize();Blockly.WidgetDiv.DIV=goog.dom.createDom("div","blocklyWidgetDiv");Blockly.WidgetDiv.DIV.style.direction=Blockly.RTL?"rtl":"ltr";document.body.appendChild(Blockly.WidgetDiv.DIV)};
 Blockly.init_=function(){Blockly.bindEvent_(Blockly.svg,"mousedown",null,Blockly.onMouseDown_);Blockly.bindEvent_(Blockly.svg,"contextmenu",null,Blockly.onContextMenu_);Blockly.bindEvent_(Blockly.WidgetDiv.DIV,"contextmenu",null,Blockly.onContextMenu_);Blockly.documentEventsBound_||(Blockly.bindEvent_(window,"resize",document,Blockly.svgResize),Blockly.bindEvent_(document,"keydown",null,Blockly.onKeyDown_),document.addEventListener("mouseup",Blockly.onMouseUp_,!1),goog.userAgent.IPAD&&Blockly.bindEvent_(window,
 "orientationchange",document,function(){Blockly.fireUiEvent(window,"resize")}),Blockly.documentEventsBound_=!0);if(Blockly.languageTree)if(Blockly.mainWorkspace.toolbox_)Blockly.mainWorkspace.toolbox_.init();else if(Blockly.mainWorkspace.flyout_){Blockly.mainWorkspace.flyout_.init(Blockly.mainWorkspace);Blockly.mainWorkspace.flyout_.show(Blockly.languageTree.childNodes);Blockly.mainWorkspace.scrollX=Blockly.mainWorkspace.flyout_.width_;Blockly.RTL&&(Blockly.mainWorkspace.scrollX*=-1);var a="translate("+
 Blockly.mainWorkspace.scrollX+", 0)";Blockly.mainWorkspace.getCanvas().setAttribute("transform",a);Blockly.mainWorkspace.getBubbleCanvas().setAttribute("transform",a)}Blockly.hasScrollbars&&(Blockly.mainWorkspace.scrollbar=new Blockly.ScrollbarPair(Blockly.mainWorkspace),Blockly.mainWorkspace.scrollbar.resize());Blockly.mainWorkspace.addTrashcan();if(Blockly.hasSounds){Blockly.loadAudio_([Blockly.pathToMedia+"click.mp3",Blockly.pathToMedia+"click.wav",Blockly.pathToMedia+"click.ogg"],"click");Blockly.loadAudio_([Blockly.pathToMedia+
@@ -1277,7 +1282,7 @@ Blockly.updateToolbox=function(a){if(a=Blockly.parseToolboxTree_(a)){if(!Blockly
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.utils={};Blockly.addClass_=function(a,b){var c=a.getAttribute("class")||"";-1==(" "+c+" ").indexOf(" "+b+" ")&&(c&&(c+=" "),a.setAttribute("class",c+b))};Blockly.removeClass_=function(a,b){var c=a.getAttribute("class");if(-1!=(" "+c+" ").indexOf(" "+b+" ")){for(var c=c.split(/\s+/),d=0;d<c.length;d++)c[d]&&c[d]!=b||(c.splice(d,1),d--);c.length?a.setAttribute("class",c.join(" ")):a.removeAttribute("class")}};
 Blockly.bindEvent_=function(a,b,c,d){var e=function(a){d.apply(c,arguments)};a.addEventListener(b,e,!1);var f=[[a,b,e]];if(b in Blockly.bindEvent_.TOUCH_MAP)for(var e=function(a){if(1==a.changedTouches.length){var b=a.changedTouches[0];a.clientX=b.clientX;a.clientY=b.clientY}d.apply(c,arguments);a.preventDefault()},g=0,h;h=Blockly.bindEvent_.TOUCH_MAP[b][g];g++)a.addEventListener(h,e,!1),f.push([a,h,e]);return f};Blockly.bindEvent_.TOUCH_MAP={};
-"ontouchstart"in document.documentElement&&(Blockly.bindEvent_.TOUCH_MAP={mousedown:["touchstart"],mousemove:["touchmove"],mouseup:["touchend","touchcancel"]});Blockly.unbindEvent_=function(a){for(;a.length;){var b=a.pop(),c=b[2];b[0].removeEventListener(b[1],c,!1)}return c};
+this.document&&this.document.documentElement&&"ontouchstart"in document.documentElement&&(Blockly.bindEvent_.TOUCH_MAP={mousedown:["touchstart"],mousemove:["touchmove"],mouseup:["touchend","touchcancel"]});Blockly.unbindEvent_=function(a){for(;a.length;){var b=a.pop(),c=b[2];b[0].removeEventListener(b[1],c,!1)}return c};
 Blockly.fireUiEventNow=function(a,b){var c=document;if(c.createEvent)c=c.createEvent("UIEvents"),c.initEvent(b,!0,!0),a.dispatchEvent(c);else if(c.createEventObject)c=c.createEventObject(),a.fireEvent("on"+b,c);else throw"FireEvent: No event creation mechanism.";};Blockly.fireUiEvent=function(a,b){setTimeout(function(){Blockly.fireUiEventNow(a,b)},0)};Blockly.noEvent=function(a){a.preventDefault();a.stopPropagation()};
 Blockly.getRelativeXY_=function(a){var b={x:0,y:0},c=a.getAttribute("x");c&&(b.x=parseInt(c,10));if(c=a.getAttribute("y"))b.y=parseInt(c,10);if(a=(a=a.getAttribute("transform"))&&a.match(/translate\(\s*([-\d.]+)([ ,]\s*([-\d.]+)\s*\))?/))b.x+=parseInt(a[1],10),a[3]&&(b.y+=parseInt(a[3],10));return b};Blockly.getSvgXY_=function(a){var b=0,c=0;do{var d=Blockly.getRelativeXY_(a),b=b+d.x,c=c+d.y;a=a.parentNode}while(a&&a!=Blockly.svg);return{x:b,y:c}};
 Blockly.getAbsoluteXY_=function(a){a=Blockly.getSvgXY_(a);return Blockly.convertCoordinates(a.x,a.y,!1)};Blockly.createSvgElement=function(a,b,c){a=document.createElementNS(Blockly.SVG_NS,a);for(var d in b)a.setAttribute(d,b[d]);document.body.runtimeStyle&&(a.runtimeStyle=a.currentStyle=a.style);c&&c.appendChild(a);return a};Blockly.isRightButton=function(a){return 2==a.button||a.ctrlKey};
@@ -1287,7 +1292,7 @@ Blockly.commonWordSuffix=function(a,b){if(!a.length)return 0;if(1==a.length)retu
 // Copyright 2011 Google Inc.  Apache License 2.0
 Blockly.pathToMedia="https://blockly-demo.appspot.com/static/media/";Blockly.SVG_NS="http://www.w3.org/2000/svg";Blockly.HTML_NS="http://www.w3.org/1999/xhtml";Blockly.HSV_SATURATION=.45;Blockly.HSV_VALUE=.65;Blockly.SPRITE={width:64,height:92,url:"sprites.png"};Blockly.makeColour=function(a){return goog.color.hsvToHex(a,Blockly.HSV_SATURATION,255*Blockly.HSV_VALUE)};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.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.SOUNDS_=Object.create(null);Blockly.selected=null;Blockly.readOnly=!1;Blockly.highlightedConnection_=null;
-Blockly.localConnection_=null;Blockly.DRAG_RADIUS=5;Blockly.SNAP_RADIUS=20;Blockly.BUMP_DELAY=250;Blockly.COLLAPSE_CHARS=30;Blockly.mainWorkspace=null;Blockly.clipboard_=null;Blockly.onTouchUpWrapper_=null;Blockly.svgSize=function(){return{width:Blockly.svg.cachedWidth_,height:Blockly.svg.cachedHeight_}};
+Blockly.localConnection_=null;Blockly.DRAG_RADIUS=5;Blockly.SNAP_RADIUS=20;Blockly.BUMP_DELAY=250;Blockly.COLLAPSE_CHARS=30;Blockly.mainWorkspace=null;Blockly.clipboard_=null;Blockly.dragMode_=0;Blockly.onTouchUpWrapper_=null;Blockly.svgSize=function(){return{width:Blockly.svg.cachedWidth_,height:Blockly.svg.cachedHeight_}};
 Blockly.svgResize=function(){var a=Blockly.svg,b=a.parentNode,c=b.offsetWidth,b=b.offsetHeight;a.cachedWidth_!=c&&(a.setAttribute("width",c+"px"),a.cachedWidth_=c);a.cachedHeight_!=b&&(a.setAttribute("height",b+"px"),a.cachedHeight_=b);Blockly.mainWorkspace.scrollbar&&Blockly.mainWorkspace.scrollbar.resize()};
 Blockly.onMouseDown_=function(a){Blockly.svgResize();Blockly.terminateDrag_();Blockly.hideChaff();var b=a.target&&a.target.nodeName&&"svg"==a.target.nodeName.toLowerCase();!Blockly.readOnly&&Blockly.selected&&b&&Blockly.selected.unselect();a.target==Blockly.svg&&Blockly.isRightButton(a)?Blockly.showContextMenu_(a):(Blockly.readOnly||b)&&Blockly.mainWorkspace.scrollbar&&(Blockly.mainWorkspace.dragMode=!0,Blockly.mainWorkspace.startDragMouseX=a.clientX,Blockly.mainWorkspace.startDragMouseY=a.clientY,
 Blockly.mainWorkspace.startDragMetrics=Blockly.mainWorkspace.getMetrics(),Blockly.mainWorkspace.startScrollX=Blockly.mainWorkspace.scrollX,Blockly.mainWorkspace.startScrollY=Blockly.mainWorkspace.scrollY,"mouseup"in Blockly.bindEvent_.TOUCH_MAP&&(Blockly.onTouchUpWrapper_=Blockly.bindEvent_(document,"mouseup",null,Blockly.onMouseUp_)),Blockly.onMouseMoveWrapper_=Blockly.bindEvent_(document,"mousemove",null,Blockly.onMouseMove_))};
@@ -1295,7 +1300,7 @@ Blockly.onMouseUp_=function(a){Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN);Bl
 Blockly.onMouseMove_=function(a){if(Blockly.mainWorkspace.dragMode){Blockly.removeAllRanges();var b=Blockly.mainWorkspace.startDragMetrics,c=Blockly.mainWorkspace.startScrollX+(a.clientX-Blockly.mainWorkspace.startDragMouseX),d=Blockly.mainWorkspace.startScrollY+(a.clientY-Blockly.mainWorkspace.startDragMouseY),c=Math.min(c,-b.contentLeft),d=Math.min(d,-b.contentTop),c=Math.max(c,b.viewWidth-b.contentLeft-b.contentWidth),d=Math.max(d,b.viewHeight-b.contentTop-b.contentHeight);Blockly.mainWorkspace.scrollbar.set(-c-
 b.contentLeft,-d-b.contentTop);a.stopPropagation()}};
 Blockly.onKeyDown_=function(a){if(!Blockly.isTargetInput_(a))if(27==a.keyCode)Blockly.hideChaff();else if(8==a.keyCode||46==a.keyCode)try{Blockly.selected&&Blockly.selected.isDeletable()&&(Blockly.hideChaff(),Blockly.selected.dispose(!0,!0))}finally{a.preventDefault()}else if(a.altKey||a.ctrlKey||a.metaKey)Blockly.selected&&Blockly.selected.isDeletable()&&Blockly.selected.isMovable()&&Blockly.selected.workspace==Blockly.mainWorkspace&&(Blockly.hideChaff(),67==a.keyCode?Blockly.copy_(Blockly.selected):
-88==a.keyCode&&(Blockly.copy_(Blockly.selected),Blockly.selected.dispose(!0,!0))),86==a.keyCode&&Blockly.clipboard_&&Blockly.mainWorkspace.paste(Blockly.clipboard_)};Blockly.terminateDrag_=function(){Blockly.Block.terminateDrag_();Blockly.Flyout.terminateDrag_()};Blockly.copy_=function(a){var b=Blockly.Xml.blockToDom_(a);Blockly.Xml.deleteNext(b);a=a.getRelativeToSurfaceXY();b.setAttribute("x",Blockly.RTL?-a.x:a.x);b.setAttribute("y",a.y);Blockly.clipboard_=b};
+88==a.keyCode&&(Blockly.copy_(Blockly.selected),Blockly.selected.dispose(!0,!0))),86==a.keyCode&&Blockly.clipboard_&&Blockly.mainWorkspace.paste(Blockly.clipboard_)};Blockly.terminateDrag_=function(){Blockly.BlockSvg.terminateDrag_();Blockly.Flyout.terminateDrag_()};Blockly.copy_=function(a){var b=Blockly.Xml.blockToDom_(a);Blockly.Xml.deleteNext(b);a=a.getRelativeToSurfaceXY();b.setAttribute("x",Blockly.RTL?-a.x:a.x);b.setAttribute("y",a.y);Blockly.clipboard_=b};
 Blockly.showContextMenu_=function(a){if(!Blockly.readOnly){var b=[];if(Blockly.collapse){for(var c=!1,d=!1,e=Blockly.mainWorkspace.getTopBlocks(!1),f=0;f<e.length;f++)for(var g=e[f];g;)g.isCollapsed()?c=!0:d=!0,g=g.getNextBlock();d={enabled:d};d.text=Blockly.Msg.COLLAPSE_ALL;d.callback=function(){for(var a=0,b=0;b<e.length;b++)for(var c=e[b];c;)setTimeout(c.setCollapsed.bind(c,!0),a),c=c.getNextBlock(),a+=10};b.push(d);c={enabled:c};c.text=Blockly.Msg.EXPAND_ALL;c.callback=function(){for(var a=0,
 b=0;b<e.length;b++)for(var c=e[b];c;)setTimeout(c.setCollapsed.bind(c,!1),a),c=c.getNextBlock(),a+=10};b.push(c)}Blockly.ContextMenu.show(a,b)}};Blockly.onContextMenu_=function(a){Blockly.isTargetInput_(a)||a.preventDefault()};Blockly.hideChaff=function(a){Blockly.Tooltip.hide();Blockly.WidgetDiv.hide();!a&&Blockly.mainWorkspace.toolbox_&&Blockly.mainWorkspace.toolbox_.flyout_&&Blockly.mainWorkspace.toolbox_.flyout_.autoClose&&Blockly.mainWorkspace.toolbox_.clearSelection()};
 Blockly.removeAllRanges=function(){if(window.getSelection){var a=window.getSelection();a&&a.removeAllRanges&&(a.removeAllRanges(),window.setTimeout(function(){try{window.getSelection().removeAllRanges()}catch(a){}},0))}};Blockly.isTargetInput_=function(a){return"textarea"==a.target.type||"text"==a.target.type};
@@ -1304,5 +1309,5 @@ Blockly.playAudio=function(a,b){var c=Blockly.SOUNDS_[a];c&&(c=goog.userAgent.DO
 Blockly.getMainWorkspaceMetrics_=function(){var a=Blockly.svgSize();Blockly.mainWorkspace.toolbox_&&(a.width-=Blockly.mainWorkspace.toolbox_.width);var b=a.width-Blockly.Scrollbar.scrollbarThickness,c=a.height-Blockly.Scrollbar.scrollbarThickness;try{var d=Blockly.mainWorkspace.getCanvas().getBBox()}catch(e){return null}if(Blockly.mainWorkspace.scrollbar)var f=Math.min(d.x-b/2,d.x+d.width-b),b=Math.max(d.x+d.width+b/2,d.x+b),g=Math.min(d.y-c/2,d.y+d.height-c),c=Math.max(d.y+d.height+c/2,d.y+c);else f=
 d.x,b=f+d.width,g=d.y,c=g+d.height;d=0;!Blockly.RTL&&Blockly.mainWorkspace.toolbox_&&(d=Blockly.mainWorkspace.toolbox_.width);return{viewHeight:a.height,viewWidth:a.width,contentHeight:c-g,contentWidth:b-f,viewTop:-Blockly.mainWorkspace.scrollY,viewLeft:-Blockly.mainWorkspace.scrollX,contentTop:g,contentLeft:f,absoluteTop:0,absoluteLeft:d}};
 Blockly.setMainWorkspaceMetrics_=function(a){if(!Blockly.mainWorkspace.scrollbar)throw"Attempt to set main workspace scroll without scrollbars.";var b=Blockly.getMainWorkspaceMetrics_();goog.isNumber(a.x)&&(Blockly.mainWorkspace.scrollX=-b.contentWidth*a.x-b.contentLeft);goog.isNumber(a.y)&&(Blockly.mainWorkspace.scrollY=-b.contentHeight*a.y-b.contentTop);a="translate("+(Blockly.mainWorkspace.scrollX+b.absoluteLeft)+","+(Blockly.mainWorkspace.scrollY+b.absoluteTop)+")";Blockly.mainWorkspace.getCanvas().setAttribute("transform",
-a);Blockly.mainWorkspace.getBubbleCanvas().setAttribute("transform",a)};Blockly.doCommand=function(a){Blockly.Realtime.isEnabled?Blockly.Realtime.doCommand(a):a()};Blockly.addChangeListener=function(a){return Blockly.bindEvent_(Blockly.mainWorkspace.getCanvas(),"blocklyWorkspaceChange",null,a)};Blockly.removeChangeListener=function(a){Blockly.unbindEvent_(a)};Blockly.getMainWorkspace=function(){return Blockly.mainWorkspace};window.Blockly||(window.Blockly={});window.Blockly.getMainWorkspace=Blockly.getMainWorkspace;
-window.Blockly.addChangeListener=Blockly.addChangeListener;window.Blockly.removeChangeListener=Blockly.removeChangeListener;
+a);Blockly.mainWorkspace.getBubbleCanvas().setAttribute("transform",a)};Blockly.doCommand=function(a){Blockly.Realtime.isEnabled?Blockly.Realtime.doCommand(a):a()};Blockly.addChangeListener=function(a){return Blockly.bindEvent_(Blockly.mainWorkspace.getCanvas(),"blocklyWorkspaceChange",null,a)};Blockly.removeChangeListener=function(a){Blockly.unbindEvent_(a)};Blockly.getMainWorkspace=function(){return Blockly.mainWorkspace};this.Blockly||(this.Blockly={});this.Blockly.getMainWorkspace=Blockly.getMainWorkspace;
+this.Blockly.addChangeListener=Blockly.addChangeListener;this.Blockly.removeChangeListener=Blockly.removeChangeListener;

blockly_uncompressed.js

@@ -24,16 +24,16 @@ if (!window.goog) {
 
 // Build map of all dependencies (used and unused).
 var dir = window.BLOCKLY_DIR.match(/[^\/]+$/)[0];
-goog.addDependency("../../../" + dir + "/core/block.js", ['Blockly.Block'], ['Blockly.BlockSvg', 'Blockly.Blocks', 'Blockly.Comment', 'Blockly.Connection', 'Blockly.ContextMenu', 'Blockly.Input', 'Blockly.Msg', 'Blockly.Mutator', 'Blockly.Warning', 'Blockly.Workspace', 'Blockly.Xml', 'goog.Timer', 'goog.array', 'goog.asserts', 'goog.string']);
-goog.addDependency("../../../" + dir + "/core/block_svg.js", ['Blockly.BlockSvg'], ['goog.userAgent']);
-goog.addDependency("../../../" + dir + "/core/blockly.js", ['Blockly'], ['Blockly.Block', 'Blockly.Connection', 'Blockly.FieldAngle', 'Blockly.FieldCheckbox', 'Blockly.FieldColour', 'Blockly.FieldDropdown', 'Blockly.FieldImage', 'Blockly.FieldTextInput', 'Blockly.FieldVariable', 'Blockly.Generator', 'Blockly.Msg', 'Blockly.Procedures', 'Blockly.Realtime', 'Blockly.Toolbox', 'Blockly.WidgetDiv', 'Blockly.Workspace', 'Blockly.inject', 'Blockly.utils', 'goog.color', 'goog.dom', 'goog.events', 'goog.string', 'goog.ui.ColorPicker', 'goog.ui.tree.TreeControl', 'goog.userAgent']);
+goog.addDependency("../../../" + dir + "/core/block.js", ['Blockly.Block'], ['Blockly.Blocks', 'Blockly.Comment', 'Blockly.Connection', 'Blockly.Input', 'Blockly.Mutator', 'Blockly.Warning', 'Blockly.Workspace', 'Blockly.Xml', 'goog.Timer', 'goog.array', 'goog.asserts', 'goog.math.Coordinate', 'goog.string']);
+goog.addDependency("../../../" + dir + "/core/block_svg.js", ['Blockly.BlockSvg'], ['Blockly.Block', 'Blockly.ContextMenu', 'goog.asserts', 'goog.userAgent']);
+goog.addDependency("../../../" + dir + "/core/blockly.js", ['Blockly'], ['Blockly.BlockSvg', 'Blockly.Connection', 'Blockly.FieldAngle', 'Blockly.FieldCheckbox', 'Blockly.FieldColour', 'Blockly.FieldDropdown', 'Blockly.FieldImage', 'Blockly.FieldTextInput', 'Blockly.FieldVariable', 'Blockly.Generator', 'Blockly.Msg', 'Blockly.Procedures', 'Blockly.Realtime', 'Blockly.Toolbox', 'Blockly.WidgetDiv', 'Blockly.WorkspaceSvg', 'Blockly.inject', 'Blockly.utils', 'goog.color', 'goog.dom', 'goog.events', 'goog.string', 'goog.ui.ColorPicker', 'goog.ui.tree.TreeControl', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/blocks.js", ['Blockly.Blocks'], ['goog.asserts']);
 goog.addDependency("../../../" + dir + "/core/bubble.js", ['Blockly.Bubble'], ['Blockly.Workspace', 'goog.math']);
 goog.addDependency("../../../" + dir + "/core/comment.js", ['Blockly.Comment'], ['Blockly.Bubble', 'Blockly.Icon', 'goog.userAgent']);
-goog.addDependency("../../../" + dir + "/core/connection.js", ['Blockly.Connection', 'Blockly.ConnectionDB'], ['Blockly.Workspace', 'Blockly.BlockSvg']);
+goog.addDependency("../../../" + dir + "/core/connection.js", ['Blockly.Connection', 'Blockly.ConnectionDB'], []);
 goog.addDependency("../../../" + dir + "/core/contextmenu.js", ['Blockly.ContextMenu'], ['goog.dom', 'goog.style', 'goog.ui.Menu', 'goog.ui.MenuItem']);
 goog.addDependency("../../../" + dir + "/core/css.js", ['Blockly.Css'], ['goog.cssom']);
-goog.addDependency("../../../" + dir + "/core/field.js", ['Blockly.Field'], ['Blockly.BlockSvg', 'goog.asserts', 'goog.userAgent']);
+goog.addDependency("../../../" + dir + "/core/field.js", ['Blockly.Field'], ['goog.asserts', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/field_angle.js", ['Blockly.FieldAngle'], ['Blockly.FieldTextInput', 'goog.math']);
 goog.addDependency("../../../" + dir + "/core/field_checkbox.js", ['Blockly.FieldCheckbox'], ['Blockly.Field']);
 goog.addDependency("../../../" + dir + "/core/field_colour.js", ['Blockly.FieldColour'], ['Blockly.Field', 'goog.ui.ColorPicker']);
@@ -42,13 +42,13 @@ goog.addDependency("../../../" + dir + "/core/field_image.js", ['Blockly.FieldIm
 goog.addDependency("../../../" + dir + "/core/field_label.js", ['Blockly.FieldLabel'], ['Blockly.Field', 'Blockly.Tooltip']);
 goog.addDependency("../../../" + dir + "/core/field_textinput.js", ['Blockly.FieldTextInput'], ['Blockly.Field', 'Blockly.Msg', 'goog.asserts', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/field_variable.js", ['Blockly.FieldVariable'], ['Blockly.FieldDropdown', 'Blockly.Msg', 'Blockly.Variables']);
-goog.addDependency("../../../" + dir + "/core/flyout.js", ['Blockly.Flyout'], ['Blockly.Block', 'Blockly.Comment', 'goog.userAgent', 'goog.math.Rect']);
+goog.addDependency("../../../" + dir + "/core/flyout.js", ['Blockly.Flyout'], ['Blockly.Block', 'Blockly.Comment', 'Blockly.WorkspaceSvg', 'goog.userAgent', 'goog.math.Rect']);
 goog.addDependency("../../../" + dir + "/core/generator.js", ['Blockly.Generator'], ['Blockly.Block']);
 goog.addDependency("../../../" + dir + "/core/icon.js", ['Blockly.Icon'], []);
-goog.addDependency("../../../" + dir + "/core/inject.js", ['Blockly.inject'], ['Blockly.Css', 'goog.dom']);
+goog.addDependency("../../../" + dir + "/core/inject.js", ['Blockly.inject'], ['Blockly.Css', 'Blockly.WorkspaceSvg', 'goog.dom']);
 goog.addDependency("../../../" + dir + "/core/input.js", ['Blockly.Input'], ['Blockly.Connection', 'Blockly.FieldLabel', 'goog.asserts']);
 goog.addDependency("../../../" + dir + "/core/msg.js", ['Blockly.Msg'], []);
-goog.addDependency("../../../" + dir + "/core/mutator.js", ['Blockly.Mutator'], ['Blockly.Bubble', 'Blockly.Icon']);
+goog.addDependency("../../../" + dir + "/core/mutator.js", ['Blockly.Mutator'], ['Blockly.Bubble', 'Blockly.Icon', 'Blockly.WorkspaceSvg']);
 goog.addDependency("../../../" + dir + "/core/names.js", ['Blockly.Names'], []);
 goog.addDependency("../../../" + dir + "/core/procedures.js", ['Blockly.Procedures'], ['Blockly.Field', 'Blockly.Names', 'Blockly.Workspace']);
 goog.addDependency("../../../" + dir + "/core/realtime-client-utils.js", ['rtclient'], []);
@@ -61,7 +61,8 @@ goog.addDependency("../../../" + dir + "/core/utils.js", ['Blockly.utils'], []);
 goog.addDependency("../../../" + dir + "/core/variables.js", ['Blockly.Variables'], ['Blockly.Workspace']);
 goog.addDependency("../../../" + dir + "/core/warning.js", ['Blockly.Warning'], ['Blockly.Bubble', 'Blockly.Icon']);
 goog.addDependency("../../../" + dir + "/core/widgetdiv.js", ['Blockly.WidgetDiv'], ['Blockly.Css', 'goog.dom']);
-goog.addDependency("../../../" + dir + "/core/workspace.js", ['Blockly.Workspace'], ['Blockly.ScrollbarPair', 'Blockly.Trashcan', 'Blockly.Xml', 'goog.math', 'goog.math.Coordinate']);
+goog.addDependency("../../../" + dir + "/core/workspace.js", ['Blockly.Workspace'], []);
+goog.addDependency("../../../" + dir + "/core/workspace_svg.js", ['Blockly.WorkspaceSvg'], ['Blockly.ScrollbarPair', 'Blockly.Trashcan', 'Blockly.Workspace', 'Blockly.Xml', 'goog.math', 'goog.math.Coordinate']);
 goog.addDependency("../../../" + dir + "/core/xml.js", ['Blockly.Xml'], []);
 goog.addDependency("../../alltests.js", [], []);
 goog.addDependency("base.js", [], []);
@@ -1555,6 +1556,7 @@ goog.require('Blockly.Variables');
 goog.require('Blockly.Warning');
 goog.require('Blockly.WidgetDiv');
 goog.require('Blockly.Workspace');
+goog.require('Blockly.WorkspaceSvg');
 goog.require('Blockly.Xml');
 goog.require('Blockly.inject');
 goog.require('Blockly.utils');

core/block.js

@@ -26,13 +26,10 @@
 
 goog.provide('Blockly.Block');
 
-goog.require('Blockly.BlockSvg');
 goog.require('Blockly.Blocks');
 goog.require('Blockly.Comment');
 goog.require('Blockly.Connection');
-goog.require('Blockly.ContextMenu');
 goog.require('Blockly.Input');
-goog.require('Blockly.Msg');
 goog.require('Blockly.Mutator');
 goog.require('Blockly.Warning');
 goog.require('Blockly.Workspace');
@@ -40,45 +37,10 @@ goog.require('Blockly.Xml');
 goog.require('goog.Timer');
 goog.require('goog.array');
 goog.require('goog.asserts');
+goog.require('goog.math.Coordinate');
 goog.require('goog.string');
 
 
-/**
- * Unique ID counter for created blocks.
- * @private
- */
-Blockly.uidCounter_ = 0;
-
-/**
- * Get the Blockly.uidCounter_
- * @return {number}
- */
-Blockly.getUidCounter = function() {
-  return Blockly.uidCounter_;
-};
-
-/**
- * Set the Blockly.uidCounter_
- * @param {number} val The value to set the counter to.
- */
-Blockly.setUidCounter = function(val) {
-  Blockly.uidCounter_ = val;
-};
-
-/**
- * Generate a unique id.  This will be locally or globally unique, depending on
- * whether we are in single user or realtime collaborative mode.
- * @return {string}
- */
-Blockly.genUid = function() {
-  var uid = (++Blockly.uidCounter_).toString();
-  if (Blockly.Realtime.isEnabled()) {
-    return Blockly.Realtime.genUid(uid);
-  } else {
-    return uid;
-  }
-};
-
 /**
 * Class for one block.
 * @constructor
@@ -101,7 +63,11 @@ Blockly.Block.obtain = function(workspace, prototypeName) {
   if (Blockly.Realtime.isEnabled()) {
     return Blockly.Realtime.obtainBlock(workspace, prototypeName);
   } else {
-    var newBlock = new Blockly.Block();
+    if (workspace.rendered) {
+      var newBlock = new Blockly.BlockSvg();
+    } else {
+      var newBlock = new Blockly.Block();
+    }
     newBlock.initialize(workspace, prototypeName);
     return newBlock;
   }
@@ -114,14 +80,9 @@ Blockly.Block.obtain = function(workspace, prototypeName) {
  *     type-specific functions for this block.
  */
 Blockly.Block.prototype.initialize = function(workspace, prototypeName) {
-  this.id = Blockly.genUid();
+  this.id = Blockly.Blocks.genUid();
   workspace.addTopBlock(this);
   this.fill(workspace, prototypeName);
-  // Bind an onchange function, if it exists.
-  if (goog.isFunction(this.onchange)) {
-    Blockly.bindEvent_(workspace.getCanvas(), 'blocklyWorkspaceChange', this,
-        this.onchange);
-  }
 };
 
 /**
@@ -147,6 +108,10 @@ Blockly.Block.prototype.fill = function(workspace, prototypeName) {
   this.editable_ = true;
   this.collapsed_ = false;
 
+  this.comment = null;
+
+  this.xy_ = new goog.math.Coordinate(0, 0);
+
   this.workspace = workspace;
   this.isInFlyout = workspace.isFlyout;
 
@@ -178,155 +143,6 @@ Blockly.Block.getById = function(id, workspace) {
   }
 };
 
-/**
- * Pointer to SVG representation of the block.
- * @type {Blockly.BlockSvg}
- * @private
- */
-Blockly.Block.prototype.svg_ = null;
-
-/**
- * Block's mutator icon (if any).
- * @type {Blockly.Mutator}
- */
-Blockly.Block.prototype.mutator = null;
-
-/**
- * Block's comment icon (if any).
- * @type {Blockly.Comment}
- */
-Blockly.Block.prototype.comment = null;
-
-/**
- * Block's warning icon (if any).
- * @type {Blockly.Warning}
- */
-Blockly.Block.prototype.warning = null;
-
-/**
- * Returns a list of mutator, comment, and warning icons.
- * @return {!Array} List of icons.
- */
-Blockly.Block.prototype.getIcons = function() {
-  var icons = [];
-  if (this.mutator) {
-    icons.push(this.mutator);
-  }
-  if (this.comment) {
-    icons.push(this.comment);
-  }
-  if (this.warning) {
-    icons.push(this.warning);
-  }
-  return icons;
-};
-
-/**
- * Create and initialize the SVG representation of the block.
- */
-Blockly.Block.prototype.initSvg = function() {
-  this.svg_ = new Blockly.BlockSvg(this);
-  this.svg_.init();
-  if (!Blockly.readOnly) {
-    Blockly.bindEvent_(this.svg_.getRootElement(), 'mousedown', this,
-                       this.onMouseDown_);
-  }
-  this.workspace.getCanvas().appendChild(this.svg_.getRootElement());
-};
-
-/**
- * Return the root node of the SVG or null if none exists.
- * @return {Element} The root SVG node (probably a group).
- */
-Blockly.Block.prototype.getSvgRoot = function() {
-  return this.svg_ && this.svg_.getRootElement();
-};
-
-/**
- * Is the mouse dragging a block?
- * 0 - No drag operation.
- * 1 - Still inside the sticky DRAG_RADIUS.
- * 2 - Freely draggable.
- * @private
- */
-Blockly.Block.dragMode_ = 0;
-
-/**
- * Wrapper function called when a mouseUp occurs during a drag operation.
- * @type {Array.<!Array>}
- * @private
- */
-Blockly.Block.onMouseUpWrapper_ = null;
-
-/**
- * Wrapper function called when a mouseMove occurs during a drag operation.
- * @type {Array.<!Array>}
- * @private
- */
-Blockly.Block.onMouseMoveWrapper_ = null;
-
-/**
- * Stop binding to the global mouseup and mousemove events.
- * @private
- */
-Blockly.Block.terminateDrag_ = function() {
-  if (Blockly.Block.onMouseUpWrapper_) {
-    Blockly.unbindEvent_(Blockly.Block.onMouseUpWrapper_);
-    Blockly.Block.onMouseUpWrapper_ = null;
-  }
-  if (Blockly.Block.onMouseMoveWrapper_) {
-    Blockly.unbindEvent_(Blockly.Block.onMouseMoveWrapper_);
-    Blockly.Block.onMouseMoveWrapper_ = null;
-  }
-  var selected = Blockly.selected;
-  if (Blockly.Block.dragMode_ == 2) {
-    // Terminate a drag operation.
-    if (selected) {
-      // Update the connection locations.
-      var xy = selected.getRelativeToSurfaceXY();
-      var dx = xy.x - selected.startDragX;
-      var dy = xy.y - selected.startDragY;
-      selected.moveConnections_(dx, dy);
-      delete selected.draggedBubbles_;
-      selected.setDragging_(false);
-      selected.render();
-      goog.Timer.callOnce(
-          selected.bumpNeighbours_, Blockly.BUMP_DELAY, selected);
-      // Fire an event to allow scrollbars to resize.
-      Blockly.fireUiEvent(window, 'resize');
-    }
-  }
-  if (selected) {
-    selected.workspace.fireChangeEvent();
-  }
-  Blockly.Block.dragMode_ = 0;
-  Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN);
-};
-
-/**
- * Select this block.  Highlight it visually.
- */
-Blockly.Block.prototype.select = function() {
-  goog.asserts.assertObject(this.svg_, 'Block is not rendered.');
-  if (Blockly.selected) {
-    // Unselect any previously selected block.
-    Blockly.selected.unselect();
-  }
-  Blockly.selected = this;
-  this.svg_.addSelect();
-  Blockly.fireUiEvent(this.workspace.getCanvas(), 'blocklySelectChange');
-};
-
-/**
- * Unselect this block.  Remove its highlighting.
- */
-Blockly.Block.prototype.unselect = function() {
-  goog.asserts.assertObject(this.svg_, 'Block is not rendered.');
-  Blockly.selected = null;
-  this.svg_.removeSelect();
-  Blockly.fireUiEvent(this.workspace.getCanvas(), 'blocklySelectChange');
-};
-
 /**
  * Dispose of this block.
  * @param {boolean} healStack If true, then try to heal any gap by connecting
@@ -338,14 +154,8 @@ Blockly.Block.prototype.unselect = function() {
  */
 Blockly.Block.prototype.dispose = function(healStack, animate,
                                            opt_dontRemoveFromWorkspace) {
-  // Switch off rerendering.
-  this.rendered = false;
   this.unplug(healStack, false);
 
-  if (animate && this.svg_) {
-    this.svg_.disposeUiEffect();
-  }
-
   // This block is now at the top of the workspace.
   // Remove this block from the workspace's list of top-most blocks.
   if (this.workspace && !opt_dontRemoveFromWorkspace) {
@@ -359,13 +169,6 @@ Blockly.Block.prototype.dispose = function(healStack, animate,
 
   if (Blockly.selected == this) {
     Blockly.selected = null;
-    // If there's a drag in-progress, unlink the mouse events.
-    Blockly.terminateDrag_();
-  }
-
-  // If this block has a context menu open, close it.
-  if (Blockly.ContextMenu.currentBlock == this) {
-    Blockly.ContextMenu.hide();
   }
 
   // First, dispose of all my children.
@@ -373,15 +176,11 @@ Blockly.Block.prototype.dispose = function(healStack, animate,
     this.childBlocks_[x].dispose(false);
   }
   // Then dispose of myself.
-  var icons = this.getIcons();
-  for (var x = 0; x < icons.length; x++) {
-    icons[x].dispose();
-  }
   // Dispose of all inputs and their fields.
   for (var x = 0, input; input = this.inputList[x]; x++) {
     input.dispose();
   }
-  this.inputList = [];
+  this.inputList.length = 0;
   // Dispose of any remaining connections (next/previous/output).
   var connections = this.getConnections_(true);
   for (var x = 0; x < connections.length; x++) {
@@ -391,11 +190,6 @@ Blockly.Block.prototype.dispose = function(healStack, animate,
     }
     connections[x].dispose();
   }
-  // Dispose of the SVG and break circular references.
-  if (this.svg_) {
-    this.svg_.dispose();
-    this.svg_ = null;
-  }
   // Remove from Realtime set of blocks.
   if (Blockly.Realtime.isEnabled() && !Blockly.Realtime.withinSync) {
     Blockly.Realtime.removeBlock(this);
@@ -442,171 +236,6 @@ Blockly.Block.prototype.unplug = function(healStack, bump) {
   }
 };
 
-/**
- * Return the coordinates of the top-left corner of this block relative to the
- * drawing surface's origin (0,0).
- * @return {!Object} Object with .x and .y properties.
- */
-Blockly.Block.prototype.getRelativeToSurfaceXY = function() {
-  var x = 0;
-  var y = 0;
-  if (this.svg_) {
-    var element = this.svg_.getRootElement();
-    do {
-      // Loop through this block and every parent.
-      var xy = Blockly.getRelativeXY_(element);
-      x += xy.x;
-      y += xy.y;
-      element = element.parentNode;
-    } while (element && element != this.workspace.getCanvas());
-  }
-  return {x: x, y: y};
-};
-
-/**
- * Move a block by a relative offset.
- * @param {number} dx Horizontal offset.
- * @param {number} dy Vertical offset.
- */
-Blockly.Block.prototype.moveBy = function(dx, dy) {
-  var xy = this.getRelativeToSurfaceXY();
-  this.svg_.getRootElement().setAttribute('transform',
-      'translate(' + (xy.x + dx) + ', ' + (xy.y + dy) + ')');
-  this.moveConnections_(dx, dy);
-  Blockly.Realtime.blockChanged(this);
-};
-
-/**
- * Returns a bounding box describing the dimensions of this block
- * and any blocks stacked below it.
- * @return {!Object} Object with height and width properties.
- */
-Blockly.Block.prototype.getHeightWidth = function() {
-  var height = this.svg_.height;
-  var width = this.svg_.width;
-  // Recursively add size of subsequent blocks.
-  var nextBlock = this.getNextBlock();
-  if (nextBlock) {
-    var nextHeightWidth = nextBlock.getHeightWidth();
-    height += nextHeightWidth.height - 4;  // Height of tab.
-    width = Math.max(width, nextHeightWidth.width);
-  }
-  return {height: height, width: width};
-};
-
-/**
- * Handle a mouse-down on an SVG block.
- * @param {!Event} e Mouse down event.
- * @private
- */
-Blockly.Block.prototype.onMouseDown_ = function(e) {
-  if (this.isInFlyout) {
-    return;
-  }
-  // Update Blockly's knowledge of its own location.
-  Blockly.svgResize();
-  Blockly.terminateDrag_();
-  this.select();
-  Blockly.hideChaff();
-  if (Blockly.isRightButton(e)) {
-    // Right-click.
-    this.showContextMenu_(e);
-  } else if (!this.isMovable()) {
-    // Allow unmovable blocks to be selected and context menued, but not
-    // dragged.  Let this event bubble up to document, so the workspace may be
-    // dragged instead.
-    return;
-  } else {
-    // Left-click (or middle click)
-    Blockly.removeAllRanges();
-    Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);
-    // Look up the current translation and record it.
-    var xy = this.getRelativeToSurfaceXY();
-    this.startDragX = xy.x;
-    this.startDragY = xy.y;
-    // Record the current mouse position.
-    this.startDragMouseX = e.clientX;
-    this.startDragMouseY = e.clientY;
-    Blockly.Block.dragMode_ = 1;
-    Blockly.Block.onMouseUpWrapper_ = Blockly.bindEvent_(document,
-        'mouseup', this, this.onMouseUp_);
-    Blockly.Block.onMouseMoveWrapper_ = Blockly.bindEvent_(document,
-        'mousemove', this, this.onMouseMove_);
-    // Build a list of bubbles that need to be moved and where they started.
-    this.draggedBubbles_ = [];
-    var descendants = this.getDescendants();
-    for (var x = 0, descendant; descendant = descendants[x]; x++) {
-      var icons = descendant.getIcons();
-      for (var y = 0; y < icons.length; y++) {
-        var data = icons[y].getIconLocation();
-        data.bubble = icons[y];
-        this.draggedBubbles_.push(data);
-      }
-    }
-  }
-  // This event has been handled.  No need to bubble up to the document.
-  e.stopPropagation();
-};
-
-/**
- * Handle a mouse-up anywhere in the SVG pane.  Is only registered when a
- * block is clicked.  We can't use mouseUp on the block since a fast-moving
- * cursor can briefly escape the block before it catches up.
- * @param {!Event} e Mouse up event.
- * @private
- */
-Blockly.Block.prototype.onMouseUp_ = function(e) {
-  var this_ = this;
-  Blockly.doCommand(function() {
-    Blockly.terminateDrag_();
-    if (Blockly.selected && Blockly.highlightedConnection_) {
-      // Connect two blocks together.
-      Blockly.localConnection_.connect(Blockly.highlightedConnection_);
-      if (this_.svg_) {
-        // Trigger a connection animation.
-        // Determine which connection is inferior (lower in the source stack).
-        var inferiorConnection;
-        if (Blockly.localConnection_.isSuperior()) {
-          inferiorConnection = Blockly.highlightedConnection_;
-        } else {
-          inferiorConnection = Blockly.localConnection_;
-        }
-        inferiorConnection.sourceBlock_.svg_.connectionUiEffect();
-      }
-      if (this_.workspace.trashcan) {
-        // Don't throw an object in the trash can if it just got connected.
-        this_.workspace.trashcan.close();
-      }
-    } else if (this_.workspace.isDeleteArea(e)) {
-      var trashcan = this_.workspace.trashcan;
-      if (trashcan) {
-        goog.Timer.callOnce(trashcan.close, 100, trashcan);
-      }
-      Blockly.selected.dispose(false, true);
-      // Dropping a block on the trash can will usually cause the workspace to
-      // resize to contain the newly positioned block.  Force a second resize
-      // now that the block has been deleted.
-      Blockly.fireUiEvent(window, 'resize');
-    }
-    if (Blockly.highlightedConnection_) {
-      Blockly.highlightedConnection_.unhighlight();
-      Blockly.highlightedConnection_ = null;
-    }
-    Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN);
-  });
-};
-
-/**
- * Load the block's help page in a new window.
- * @private
- */
-Blockly.Block.prototype.showHelp_ = function() {
-  var url = goog.isFunction(this.helpUrl) ? this.helpUrl() : this.helpUrl;
-  if (url) {
-    window.open(url);
-  }
-};
-
 /**
  * Duplicate this block and its children.
  * @return {!Blockly.Block} The duplicate.
@@ -631,136 +260,6 @@ Blockly.Block.prototype.duplicate_ = function() {
   return newBlock;
 };
 
-/**
- * Show the context menu for this block.
- * @param {!Event} e Mouse event.
- * @private
- */
-Blockly.Block.prototype.showContextMenu_ = function(e) {
-  if (Blockly.readOnly || !this.contextMenu) {
-    return;
-  }
-  // Save the current block in a variable for use in closures.
-  var block = this;
-  var options = [];
-
-  if (this.isDeletable() && this.isMovable() && !block.isInFlyout) {
-    // Option to duplicate this block.
-    var duplicateOption = {
-      text: Blockly.Msg.DUPLICATE_BLOCK,
-      enabled: true,
-      callback: function() {
-        block.duplicate_();
-      }
-    };
-    if (this.getDescendants().length > this.workspace.remainingCapacity()) {
-      duplicateOption.enabled = false;
-    }
-    options.push(duplicateOption);
-
-    if (this.isEditable() && !this.collapsed_ && Blockly.comments) {
-      // Option to add/remove a comment.
-      var commentOption = {enabled: true};
-      if (this.comment) {
-        commentOption.text = Blockly.Msg.REMOVE_COMMENT;
-        commentOption.callback = function() {
-          block.setCommentText(null);
-        };
-      } else {
-        commentOption.text = Blockly.Msg.ADD_COMMENT;
-        commentOption.callback = function() {
-          block.setCommentText('');
-        };
-      }
-      options.push(commentOption);
-    }
-
-    // Option to make block inline.
-    if (!this.collapsed_) {
-      for (var i = 0; i < this.inputList.length; i++) {
-        if (this.inputList[i].type == Blockly.INPUT_VALUE) {
-          // Only display this option if there is a value input on the block.
-          var inlineOption = {enabled: true};
-          inlineOption.text = this.inputsInline ? Blockly.Msg.EXTERNAL_INPUTS :
-                                                  Blockly.Msg.INLINE_INPUTS;
-          inlineOption.callback = function() {
-            block.setInputsInline(!block.inputsInline);
-          };
-          options.push(inlineOption);
-          break;
-        }
-      }
-    }
-
-    if (Blockly.collapse) {
-      // Option to collapse/expand block.
-      if (this.collapsed_) {
-        var expandOption = {enabled: true};
-        expandOption.text = Blockly.Msg.EXPAND_BLOCK;
-        expandOption.callback = function() {
-          block.setCollapsed(false);
-        };
-        options.push(expandOption);
-      } else {
-        var collapseOption = {enabled: true};
-        collapseOption.text = Blockly.Msg.COLLAPSE_BLOCK;
-        collapseOption.callback = function() {
-          block.setCollapsed(true);
-        };
-        options.push(collapseOption);
-      }
-    }
-
-    if (Blockly.disable) {
-      // Option to disable/enable block.
-      var disableOption = {
-        text: this.disabled ?
-            Blockly.Msg.ENABLE_BLOCK : Blockly.Msg.DISABLE_BLOCK,
-        enabled: !this.getInheritedDisabled(),
-        callback: function() {
-          block.setDisabled(!block.disabled);
-        }
-      };
-      options.push(disableOption);
-    }
-
-    // Option to delete this block.
-    // Count the number of blocks that are nested in this block.
-    var descendantCount = this.getDescendants().length;
-    var nextBlock = this.getNextBlock();
-    if (nextBlock) {
-      // Blocks in the current stack would survive this block's deletion.
-      descendantCount -= nextBlock.getDescendants().length;
-    }
-    var deleteOption = {
-      text: descendantCount == 1 ? Blockly.Msg.DELETE_BLOCK :
-          Blockly.Msg.DELETE_X_BLOCKS.replace('%1', String(descendantCount)),
-      enabled: true,
-      callback: function() {
-        block.dispose(true, true);
-      }
-    };
-    options.push(deleteOption);
-  }
-
-  // Option to get help.
-  var url = goog.isFunction(this.helpUrl) ? this.helpUrl() : this.helpUrl;
-  var helpOption = {enabled: !!url};
-  helpOption.text = Blockly.Msg.HELP;
-  helpOption.callback = function() {
-    block.showHelp_();
-  };
-  options.push(helpOption);
-
-  // Allow the block to add or modify options.
-  if (this.customContextMenu && !block.isInFlyout) {
-    this.customContextMenu(options);
-  }
-
-  Blockly.ContextMenu.show(e, options);
-  Blockly.ContextMenu.currentBlock = this;
-};
-
 /**
  * Returns all connections originating from this block.
  * @param {boolean} all If true, return all connections even hidden ones.
@@ -791,145 +290,13 @@ Blockly.Block.prototype.getConnections_ = function(all) {
   return myConnections;
 };
 
-/**
- * Move the connections for this block and all blocks attached under it.
- * Also update any attached bubbles.
- * @param {number} dx Horizontal offset from current location.
- * @param {number} dy Vertical offset from current location.
- * @private
- */
-Blockly.Block.prototype.moveConnections_ = function(dx, dy) {
-  if (!this.rendered) {
-    // Rendering is required to lay out the blocks.
-    // This is probably an invisible block attached to a collapsed block.
-    return;
-  }
-  var myConnections = this.getConnections_(false);
-  for (var x = 0; x < myConnections.length; x++) {
-    myConnections[x].moveBy(dx, dy);
-  }
-  var icons = this.getIcons();
-  for (var x = 0; x < icons.length; x++) {
-    icons[x].computeIconLocation();
-  }
-
-  // Recurse through all blocks attached under this one.
-  for (var x = 0; x < this.childBlocks_.length; x++) {
-    this.childBlocks_[x].moveConnections_(dx, dy);
-  }
-};
-
-/**
- * Recursively adds or removes the dragging class to this node and its children.
- * @param {boolean} adding True if adding, false if removing.
- * @private
- */
-Blockly.Block.prototype.setDragging_ = function(adding) {
-  if (adding) {
-    this.svg_.addDragging();
-  } else {
-    this.svg_.removeDragging();
-  }
-  // Recurse through all blocks attached under this one.
-  for (var x = 0; x < this.childBlocks_.length; x++) {
-    this.childBlocks_[x].setDragging_(adding);
-  }
-};
-
-/**
- * Drag this block to follow the mouse.
- * @param {!Event} e Mouse move event.
- * @private
- */
-Blockly.Block.prototype.onMouseMove_ = function(e) {
-  var this_ = this;
-  Blockly.doCommand(function() {
-    if (e.type == 'mousemove' && e.clientX <= 1 && e.clientY == 0 &&
-        e.button == 0) {
-      /* HACK:
-       Safari Mobile 6.0 and Chrome for Android 18.0 fire rogue mousemove
-       events on certain touch actions. Ignore events with these signatures.
-       This may result in a one-pixel blind spot in other browsers,
-       but this shouldn't be noticeable. */
-      e.stopPropagation();
-      return;
-    }
-    Blockly.removeAllRanges();
-    var dx = e.clientX - this_.startDragMouseX;
-    var dy = e.clientY - this_.startDragMouseY;
-    if (Blockly.Block.dragMode_ == 1) {
-      // Still dragging within the sticky DRAG_RADIUS.
-      var dr = Math.sqrt(Math.pow(dx, 2) + Math.pow(dy, 2));
-      if (dr > Blockly.DRAG_RADIUS) {
-        // Switch to unrestricted dragging.
-        Blockly.Block.dragMode_ = 2;
-        // Push this block to the very top of the stack.
-        this_.setParent(null);
-        this_.setDragging_(true);
-        this_.workspace.recordDeleteAreas();
-      }
-    }
-    if (Blockly.Block.dragMode_ == 2) {
-      // Unrestricted dragging.
-      var x = this_.startDragX + dx;
-      var y = this_.startDragY + dy;
-      this_.svg_.getRootElement().setAttribute('transform',
-          'translate(' + x + ', ' + y + ')');
-      // Drag all the nested bubbles.
-      for (var i = 0; i < this_.draggedBubbles_.length; i++) {
-        var commentData = this_.draggedBubbles_[i];
-        commentData.bubble.setIconLocation(commentData.x + dx,
-            commentData.y + dy);
-      }
-
-      // Check to see if any of this block's connections are within range of
-      // another block's connection.
-      var myConnections = this_.getConnections_(false);
-      var closestConnection = null;
-      var localConnection = null;
-      var radiusConnection = Blockly.SNAP_RADIUS;
-      for (var i = 0; i < myConnections.length; i++) {
-        var myConnection = myConnections[i];
-        var neighbour = myConnection.closest(radiusConnection, dx, dy);
-        if (neighbour.connection) {
-          closestConnection = neighbour.connection;
-          localConnection = myConnection;
-          radiusConnection = neighbour.radius;
-        }
-      }
-
-      // Remove connection highlighting if needed.
-      if (Blockly.highlightedConnection_ &&
-          Blockly.highlightedConnection_ != closestConnection) {
-        Blockly.highlightedConnection_.unhighlight();
-        Blockly.highlightedConnection_ = null;
-        Blockly.localConnection_ = null;
-      }
-      // Add connection highlighting if needed.
-      if (closestConnection &&
-          closestConnection != Blockly.highlightedConnection_) {
-        closestConnection.highlight();
-        Blockly.highlightedConnection_ = closestConnection;
-        Blockly.localConnection_ = localConnection;
-      }
-      // Provide visual indication of whether the block will be deleted if
-      // dropped here.
-      if (this_.isDeletable()) {
-        this_.workspace.isDeleteArea(e);
-      }
-    }
-    // This event has been handled.  No need to bubble up to the document.
-    e.stopPropagation();
-  });
-};
-
 /**
  * Bump unconnected blocks out of alignment.  Two blocks which aren't actually
  * connected should not coincidentally line up on screen.
  * @private
  */
 Blockly.Block.prototype.bumpNeighbours_ = function() {
-  if (Blockly.Block.dragMode_ != 0) {
+  if (Blockly.dragMode_ != 0) {
     // Don't bump blocks during a drag.
     return;
   }
@@ -1045,11 +412,6 @@ Blockly.Block.prototype.setParent = function(newParent) {
         break;
       }
     }
-    // Move this block up the DOM.  Keep track of x/y translations.
-    var xy = this.getRelativeToSurfaceXY();
-    this.workspace.getCanvas().appendChild(this.svg_.getRootElement());
-    this.svg_.getRootElement().setAttribute('transform',
-        'translate(' + xy.x + ', ' + xy.y + ')');
 
     // Disconnect from superior blocks.
     this.parentBlock_ = null;
@@ -1074,14 +436,6 @@ Blockly.Block.prototype.setParent = function(newParent) {
   if (newParent) {
     // Add this block to the new parent's child list.
     newParent.childBlocks_.push(this);
-
-    var oldXY = this.getRelativeToSurfaceXY();
-    if (newParent.svg_ && this.svg_) {
-      newParent.svg_.getRootElement().appendChild(this.svg_.getRootElement());
-    }
-    var newXY = this.getRelativeToSurfaceXY();
-    // Move the connections to match the child's new position.
-    this.moveConnections_(newXY.x - oldXY.x, newXY.y - oldXY.y);
   } else {
     this.workspace.addTopBlock(this);
   }
@@ -1183,21 +537,8 @@ Blockly.Block.prototype.getColour = function() {
  */
 Blockly.Block.prototype.setColour = function(colourHue) {
   this.colourHue_ = colourHue;
-  if (this.svg_) {
-    this.svg_.updateColour();
-  }
-  var icons = this.getIcons();
-  for (var x = 0; x < icons.length; x++) {
-    icons[x].updateColour();
-  }
   if (this.rendered) {
-    // Bump every dropdown to change its colour.
-    for (var x = 0, input; input = this.inputList[x]; x++) {
-      for (var y = 0, field; field = input.fieldRow[y]; y++) {
-        field.setText(null);
-      }
-    }
-    this.render();
+    this.updateColour();
   }
 };
 
@@ -1391,12 +732,7 @@ Blockly.Block.prototype.setInputsInline = function(newBoolean) {
  * @param {boolean} disabled True if disabled.
  */
 Blockly.Block.prototype.setDisabled = function(disabled) {
-  if (this.disabled == disabled) {
-    return;
-  }
   this.disabled = disabled;
-  this.svg_.updateDisabled();
-  this.workspace.fireChangeEvent();
 };
 
 /**
@@ -1430,38 +766,7 @@ Blockly.Block.prototype.isCollapsed = function() {
  * @param {boolean} collapsed True if collapsed.
  */
 Blockly.Block.prototype.setCollapsed = function(collapsed) {
-  if (this.collapsed_ == collapsed) {
-    return;
-  }
   this.collapsed_ = collapsed;
-  var renderList = [];
-  // Show/hide the inputs.
-  for (var x = 0, input; input = this.inputList[x]; x++) {
-    renderList.push.apply(renderList, input.setVisible(!collapsed));
-  }
-
-  var COLLAPSED_INPUT_NAME = '_TEMP_COLLAPSED_INPUT';
-  if (collapsed) {
-    var icons = this.getIcons();
-    for (var x = 0; x < icons.length; x++) {
-      icons[x].setVisible(false);
-    }
-    var text = this.toString(Blockly.COLLAPSE_CHARS);
-    this.appendDummyInput(COLLAPSED_INPUT_NAME).appendField(text);
-  } else {
-    this.removeInput(COLLAPSED_INPUT_NAME);
-  }
-
-  if (!renderList.length) {
-    // No child blocks, just render this block.
-    renderList[0] = this;
-  }
-  if (this.rendered) {
-    for (var x = 0, block; block = renderList[x]; x++) {
-      block.render();
-    }
-    this.bumpNeighbours_();
-  }
 };
 
 /**
@@ -1777,34 +1082,12 @@ Blockly.Block.prototype.getInputTargetBlock = function(name) {
   return input && input.connection && input.connection.targetBlock();
 };
 
-/**
- * Give this block a mutator dialog.
- * @param {Blockly.Mutator} mutator A mutator dialog instance or null to remove.
- */
-Blockly.Block.prototype.setMutator = function(mutator) {
-  if (this.mutator && this.mutator !== mutator) {
-    this.mutator.dispose();
-  }
-  if (mutator) {
-    mutator.block_ = this;
-    this.mutator = mutator;
-    if (this.svg_) {
-      mutator.createIcon();
-    }
-  }
-};
-
 /**
  * Returns the comment on this block (or '' if none).
  * @return {string} Block's comment.
  */
 Blockly.Block.prototype.getCommentText = function() {
-  if (this.comment) {
-    var comment = this.comment.getText();
-    // Trim off trailing whitespace.
-    return comment.replace(/\s+$/, '').replace(/ +\n/g, '\n');
-  }
-  return '';
+  return this.comment || '';
 };
 
 /**
@@ -1812,26 +1095,7 @@ Blockly.Block.prototype.getCommentText = function() {
  * @param {?string} text The text, or null to delete.
  */
 Blockly.Block.prototype.setCommentText = function(text) {
-  var changedState = false;
-  if (goog.isString(text)) {
-    if (!this.comment) {
-      this.comment = new Blockly.Comment(this);
-      changedState = true;
-    }
-    this.comment.setText(/** @type {string} */ (text));
-  } else {
-    if (this.comment) {
-      this.comment.dispose();
-      changedState = true;
-    }
-  }
-  if (this.rendered) {
-    this.render();
-    if (changedState) {
-      // Adding or removing a comment icon will cause the block to change shape.
-      this.bumpNeighbours_();
-    }
-  }
+  this.comment = text;
 };
 
 /**
@@ -1839,36 +1103,31 @@ Blockly.Block.prototype.setCommentText = function(text) {
  * @param {?string} text The text, or null to delete.
  */
 Blockly.Block.prototype.setWarningText = function(text) {
-  if (this.isInFlyout) {
-    text = null;
-  }
-  var changedState = false;
-  if (goog.isString(text)) {
-    if (!this.warning) {
-      this.warning = new Blockly.Warning(this);
-      changedState = true;
-    }
-    this.warning.setText(/** @type {string} */ (text));
-  } else {
-    if (this.warning) {
-      this.warning.dispose();
-      changedState = true;
-    }
-  }
-  if (changedState && this.rendered) {
-    this.render();
-    // Adding or removing a warning icon will cause the block to change shape.
-    this.bumpNeighbours_();
-  }
+  // NOP.
 };
 
 /**
- * Render the block.
- * Lays out and reflows a block based on its contents and settings.
+ * Give this block a mutator dialog.
+ * @param {Blockly.Mutator} mutator A mutator dialog instance or null to remove.
  */
-Blockly.Block.prototype.render = function() {
-  goog.asserts.assertObject(this.svg_,
-      'Uninitialized block cannot be rendered.  Call block.initSvg()');
-  this.svg_.render();
-  Blockly.Realtime.blockChanged(this);
+Blockly.Block.prototype.setMutator = function(mutator) {
+  // NOP.
+};
+
+/**
+ * Return the coordinates of the top-left corner of this block relative to the
+ * drawing surface's origin (0,0).
+ * @return {!goog.math.Coordinate} Object with .x and .y properties.
+ */
+Blockly.Block.prototype.getRelativeToSurfaceXY = function() {
+  return this.xy_;
+};
+
+/**
+ * Move a block by a relative offset.
+ * @param {number} dx Horizontal offset.
+ * @param {number} dy Vertical offset.
+ */
+Blockly.Block.prototype.moveBy = function(dx, dy) {
+  this.xy_.translate(dx, dy);
 };

core/blockly.js

@@ -28,7 +28,7 @@
 goog.provide('Blockly');
 
 // Blockly core dependencies.
-goog.require('Blockly.Block');
+goog.require('Blockly.BlockSvg');
 goog.require('Blockly.Connection');
 goog.require('Blockly.FieldAngle');
 goog.require('Blockly.FieldCheckbox');
@@ -43,7 +43,7 @@ goog.require('Blockly.Procedures');
 goog.require('Blockly.Realtime');
 goog.require('Blockly.Toolbox');
 goog.require('Blockly.WidgetDiv');
-goog.require('Blockly.Workspace');
+goog.require('Blockly.WorkspaceSvg');
 goog.require('Blockly.inject');
 goog.require('Blockly.utils');
 
@@ -223,6 +223,15 @@ Blockly.mainWorkspace = null;
  */
 Blockly.clipboard_ = null;
 
+/**
+ * Is the mouse dragging a block?
+ * 0 - No drag operation.
+ * 1 - Still inside the sticky DRAG_RADIUS.
+ * 2 - Freely draggable.
+ * @private
+ */
+Blockly.dragMode_ = 0;
+
 /**
  * Wrapper function called when a touch mouseUp occurs during a drag operation.
  * @type {Array.<!Array>}
@@ -408,7 +417,7 @@ Blockly.onKeyDown_ = function(e) {
  * @private
  */
 Blockly.terminateDrag_ = function() {
-  Blockly.Block.terminateDrag_();
+  Blockly.BlockSvg.terminateDrag_();
   Blockly.Flyout.terminateDrag_();
 };
 
@@ -758,9 +767,9 @@ Blockly.getMainWorkspace = function() {
 };
 
 // Export symbols that would otherwise be renamed by Closure compiler.
-if (!window['Blockly']) {
-  window['Blockly'] = {};
+if (!this['Blockly']) {
+  this['Blockly'] = {};
 }
-window['Blockly']['getMainWorkspace'] = Blockly.getMainWorkspace;
-window['Blockly']['addChangeListener'] = Blockly.addChangeListener;
-window['Blockly']['removeChangeListener'] = Blockly.removeChangeListener;
+this['Blockly']['getMainWorkspace'] = Blockly.getMainWorkspace;
+this['Blockly']['addChangeListener'] = Blockly.addChangeListener;
+this['Blockly']['removeChangeListener'] = Blockly.removeChangeListener;

core/blocks.js

@@ -32,6 +32,26 @@ goog.require('goog.asserts');
  */
 goog.provide('Blockly.Blocks');
 
+/**
+ * Unique ID counter for created blocks.
+ * @private
+ */
+Blockly.Blocks.uidCounter_ = 0;
+
+/**
+ * Generate a unique ID.  This will be locally or globally unique, depending on
+ * whether we are in single user or realtime collaborative mode.
+ * @return {string}
+ */
+Blockly.Blocks.genUid = function() {
+  var uid = (++Blockly.Blocks.uidCounter_).toString();
+  if (Blockly.Realtime.isEnabled()) {
+    return Blockly.Realtime.genUid(uid);
+  } else {
+    return uid;
+  }
+};
+
 /**
  * Create a block template and add it as a field to Blockly.Blocks with the
  * name details.blockName.

core/comment.js

@@ -166,7 +166,7 @@ Blockly.Comment.prototype.setVisible = function(visible) {
     // Create the bubble.
     this.bubble_ = new Blockly.Bubble(
         /** @type {!Blockly.Workspace} */ (this.block_.workspace),
-        this.createEditor_(), this.block_.svg_.svgPath_,
+        this.createEditor_(), this.block_.svgPath_,
         this.iconX_, this.iconY_,
         this.width_, this.height_);
     this.bubble_.registerResizeEvent(this, this.resizeBubble_);

core/connection.js

@@ -27,9 +27,6 @@
 goog.provide('Blockly.Connection');
 goog.provide('Blockly.ConnectionDB');
 
-goog.require('Blockly.Workspace');
-goog.require('Blockly.BlockSvg');
-
 
 /**
  * Class for a connection between blocks.
@@ -181,10 +178,10 @@ Blockly.Connection.prototype.connect = function(otherConnection) {
   childBlock.setParent(parentBlock);
 
   if (parentBlock.rendered) {
-    parentBlock.svg_.updateDisabled();
+    parentBlock.updateDisabled();
   }
   if (childBlock.rendered) {
-    childBlock.svg_.updateDisabled();
+    childBlock.updateDisabled();
   }
   if (parentBlock.rendered && childBlock.rendered) {
     if (this.type == Blockly.NEXT_STATEMENT ||
@@ -252,7 +249,7 @@ Blockly.Connection.prototype.disconnect = function() {
     parentBlock.render();
   }
   if (childBlock.rendered) {
-    childBlock.svg_.updateDisabled();
+    childBlock.updateDisabled();
     childBlock.render();
   }
 };
@@ -276,7 +273,7 @@ Blockly.Connection.prototype.targetBlock = function() {
  * @private
  */
 Blockly.Connection.prototype.bumpAwayFrom_ = function(staticConnection) {
-  if (Blockly.Block.dragMode_ != 0) {
+  if (Blockly.dragMode_ != 0) {
     // Don't move blocks around while the user is doing the same.
     return;
   }

core/field.js

@@ -28,9 +28,6 @@
 
 goog.provide('Blockly.Field');
 
-// TODO(scr): Fix circular dependencies
-// goog.require('Blockly.Block');
-goog.require('Blockly.BlockSvg');
 goog.require('goog.asserts');
 goog.require('goog.userAgent');
 
@@ -54,9 +51,14 @@ Blockly.Field = function(text) {
       {'class': 'blocklyText'}, this.fieldGroup_);
   this.size_ = {height: 25, width: 0};
   this.setText(text);
-  this.visible_ = true;
 };
 
+/**
+ * Is the field visible, or hidden due to the block being collapsed?
+ * @private
+ */
+Blockly.Field.prototype.visible_ = true;
+
 /**
  * Clone this Field.  This must be implemented by all classes derived from
  * Field.  Since this class should not be instantiated, calling this method
@@ -84,7 +86,8 @@ Blockly.Field.prototype.EDITABLE = true;
  */
 Blockly.Field.prototype.init = function(block) {
   if (this.sourceBlock_) {
-    throw 'Field has already been initialized once.';
+    // Field has already been initialized once.
+    return;
   }
   this.sourceBlock_ = block;
   this.updateEditable();
@@ -145,8 +148,11 @@ Blockly.Field.prototype.isVisible = function() {
  * @param {boolean} visible True if visible.
  */
 Blockly.Field.prototype.setVisible = function(visible) {
+  if (this.visible_ == visible) {
+    return;
+  }
   this.visible_ = visible;
-  this.getRootElement().style.display = visible ? 'block' : 'none';
+  this.getSvgRoot().style.display = visible ? 'block' : 'none';
   this.render_();
 };
 
@@ -155,7 +161,7 @@ Blockly.Field.prototype.setVisible = function(visible) {
  * Used for measuring the size and for positioning.
  * @return {!Element} The group element.
  */
-Blockly.Field.prototype.getRootElement = function() {
+Blockly.Field.prototype.getSvgRoot = function() {
   return /** @type {!Element} */ (this.fieldGroup_);
 };
 
@@ -165,16 +171,20 @@ Blockly.Field.prototype.getRootElement = function() {
  * @private
  */
 Blockly.Field.prototype.render_ = function() {
-  try {
-    var width = this.textElement_.getComputedTextLength();
-  } catch(e) {
-    // MSIE 11 is known to throw "Unexpected call to method or property access."
-    // if Blockly is hidden.
-    var width = this.textElement_.childNodes[0].length * 8;
-  }
-  if (this.borderRect_) {
-    this.borderRect_.setAttribute('width',
-        width + Blockly.BlockSvg.SEP_SPACE_X);
+  if (this.visible_) {
+    try {
+      var width = this.textElement_.getComputedTextLength();
+    } catch(e) {
+      // MSIE 11 is known to throw "Unexpected call to method or property
+      // access." if Blockly is hidden.
+      var width = this.textElement_.textContent.length * 8;
+    }
+    if (this.borderRect_) {
+      this.borderRect_.setAttribute('width',
+          width + Blockly.BlockSvg.SEP_SPACE_X);
+    }
+  } else {
+    var width = 0;
   }
   this.size_.width = width;
 };
@@ -274,7 +284,7 @@ Blockly.Field.prototype.onMouseUp_ = function(e) {
   } else if (Blockly.isRightButton(e)) {
     // Right-click.
     return;
-  } else if (Blockly.Block.dragMode_ == 2) {
+  } else if (Blockly.dragMode_ == 2) {
     // Drag operation is concluding.  Don't open the editor.
     return;
   } else if (this.sourceBlock_.isEditable()) {

core/field_checkbox.js

@@ -97,7 +97,7 @@ Blockly.FieldCheckbox.prototype.setValue = function(strBool) {
  */
 Blockly.FieldCheckbox.prototype.showEditor_ = function() {
   var newState = !this.state_;
-  if (this.changeHandler_) {
+  if (this.sourceBlock_ && this.changeHandler_) {
     // Call any change handler, and allow it to override.
     var override = this.changeHandler_(newState);
     if (override !== undefined) {

core/field_colour.js

@@ -96,6 +96,19 @@ Blockly.FieldColour.prototype.setValue = function(colour) {
   }
 };
 
+/**
+ * Get the text from this field.  Used when the block is collapsed.
+ * @return {string} Current text.
+ */
+Blockly.FieldColour.prototype.getText = function() {
+  var colour = this.colour_;
+  var m = colour.match(/^#(.)\1(.)\2(.)\3$/);
+  if (m) {
+    colour = '#' + m[1] + m[2] + m[3];
+  }
+  return colour;
+};
+
 /**
  * An array of colour strings for the palette.
  * See bottom of this page for the default:
@@ -155,21 +168,21 @@ Blockly.FieldColour.prototype.showEditor_ = function() {
   Blockly.WidgetDiv.position(xy.x, xy.y, windowSize, scrollOffset);
 
   // Configure event handler.
-  var thisObj = this;
+  var thisField = this;
   Blockly.FieldColour.changeEventKey_ = goog.events.listen(picker,
       goog.ui.ColorPicker.EventType.CHANGE,
       function(event) {
         var colour = event.target.getSelectedColor() || '#000000';
         Blockly.WidgetDiv.hide();
-        if (thisObj.changeHandler_) {
+        if (thisField.sourceBlock_ && thisField.changeHandler_) {
           // Call any change handler, and allow it to override.
-          var override = thisObj.changeHandler_(colour);
+          var override = thisField.changeHandler_(colour);
           if (override !== undefined) {
             colour = override;
           }
         }
         if (colour !== null) {
-          thisObj.setValue(colour);
+          thisField.setValue(colour);
         }
       });
 };

core/field_dropdown.js

@@ -102,7 +102,7 @@ Blockly.FieldDropdown.prototype.showEditor_ = function() {
     var menuItem = e.target;
     if (menuItem) {
       var value = menuItem.getValue();
-      if (thisField.changeHandler_) {
+      if (this.sourceBlock_ && thisField.changeHandler_) {
         // Call any change handler, and allow it to override.
         var override = thisField.changeHandler_(value);
         if (override !== undefined) {

core/field_image.js

@@ -94,7 +94,8 @@ Blockly.FieldImage.prototype.EDITABLE = false;
  */
 Blockly.FieldImage.prototype.init = function(block) {
   if (this.sourceBlock_) {
-    throw 'Image has already been initialized once.';
+    // Image has already been initialized once.
+    return;
   }
   this.sourceBlock_ = block;
   block.getSvgRoot().appendChild(this.fieldGroup_);
@@ -161,3 +162,11 @@ Blockly.FieldImage.prototype.setText = function(alt) {
   }
   this.text_ = alt;
 };
+
+/**
+ * Images are fixed width, no need to render.
+ * @private
+ */
+Blockly.FieldImage.prototype.render_ = function() {
+  // NOP
+};

core/field_label.js

@@ -66,7 +66,8 @@ Blockly.FieldLabel.prototype.EDITABLE = false;
  */
 Blockly.FieldLabel.prototype.init = function(block) {
   if (this.sourceBlock_) {
-    throw 'Text has already been initialized once.';
+    // Text has already been initialized once.
+    return;
   }
   this.sourceBlock_ = block;
   block.getSvgRoot().appendChild(this.textElement_);
@@ -89,7 +90,7 @@ Blockly.FieldLabel.prototype.dispose = function() {
  * Used for measuring the size and for positioning.
  * @return {!Element} The group element.
  */
-Blockly.FieldLabel.prototype.getRootElement = function() {
+Blockly.FieldLabel.prototype.getSvgRoot = function() {
   return /** @type {!Element} */ (this.textElement_);
 };
 

core/field_textinput.js

@@ -81,7 +81,7 @@ Blockly.FieldTextInput.prototype.setText = function(text) {
     // No change if null.
     return;
   }
-  if (this.changeHandler_) {
+  if (this.sourceBlock_ && this.changeHandler_) {
     var validated = this.changeHandler_(text);
     // If the new text is invalid, validation returns null.
     // In this case we still want to display the illegal result.
@@ -104,7 +104,7 @@ Blockly.FieldTextInput.prototype.showEditor_ = function(opt_quietInput) {
                       goog.userAgent.IPAD)) {
     // Mobile browsers have issues with in-line textareas (focus & keyboards).
     var newValue = window.prompt(Blockly.Msg.CHANGE_VALUE_TITLE, this.text_);
-    if (this.changeHandler_) {
+    if (this.sourceBlock_ && this.changeHandler_) {
       var override = this.changeHandler_(newValue);
       if (override !== undefined) {
         newValue = override;
@@ -182,7 +182,7 @@ Blockly.FieldTextInput.prototype.validate_ = function() {
   var valid = true;
   goog.asserts.assertObject(Blockly.FieldTextInput.htmlInput_);
   var htmlInput = /** @type {!Element} */ (Blockly.FieldTextInput.htmlInput_);
-  if (this.changeHandler_) {
+  if (this.sourceBlock_ && this.changeHandler_) {
     valid = this.changeHandler_(htmlInput.value);
   }
   if (valid === null) {
@@ -229,7 +229,7 @@ Blockly.FieldTextInput.prototype.widgetDispose_ = function() {
     var htmlInput = Blockly.FieldTextInput.htmlInput_;
     // Save the edit (if it validates).
     var text = htmlInput.value;
-    if (thisField.changeHandler_) {
+    if (thisField.sourceBlock_ && thisField.changeHandler_) {
       text = thisField.changeHandler_(text);
       if (text === null) {
         // Invalid edit.

core/field_variable.js

@@ -108,7 +108,12 @@ Blockly.FieldVariable.prototype.setValue = function(text) {
  * @this {!Blockly.FieldVariable}
  */
 Blockly.FieldVariable.dropdownCreate = function() {
-  var variableList = Blockly.Variables.allVariables();
+  if (this.sourceBlock_ && this.sourceBlock_.workspace) {
+    var variableList =
+        Blockly.Variables.allVariables(this.sourceBlock_.workspace);
+  } else {
+    var variableList = [];
+  }
   // Ensure that the currently selected variable is an option.
   var name = this.getText();
   if (name && variableList.indexOf(name) == -1) {

core/flyout.js

@@ -28,6 +28,7 @@ goog.provide('Blockly.Flyout');
 
 goog.require('Blockly.Block');
 goog.require('Blockly.Comment');
+goog.require('Blockly.WorkspaceSvg');
 goog.require('goog.userAgent');
 goog.require('goog.math.Rect');
 
@@ -42,7 +43,7 @@ Blockly.Flyout = function() {
    * @type {!Blockly.Workspace}
    * @private
    */
-  this.workspace_ = new Blockly.Workspace(
+  this.workspace_ = new Blockly.WorkspaceSvg(
       function() {return flyout.getMetrics_();},
       function(ratio) {return flyout.setMetrics_(ratio);});
   this.workspace_.isFlyout = true;
@@ -404,16 +405,16 @@ Blockly.Flyout.prototype.show = function(xmlList) {
       this.listeners_.push(Blockly.bindEvent_(root, 'mousedown', null,
           this.blockMouseDown_(block)));
     }
-    this.listeners_.push(Blockly.bindEvent_(root, 'mouseover', block.svg_,
-        block.svg_.addSelect));
-    this.listeners_.push(Blockly.bindEvent_(root, 'mouseout', block.svg_,
-        block.svg_.removeSelect));
+    this.listeners_.push(Blockly.bindEvent_(root, 'mouseover', block,
+        block.addSelect));
+    this.listeners_.push(Blockly.bindEvent_(root, 'mouseout', block,
+        block.removeSelect));
     this.listeners_.push(Blockly.bindEvent_(rect, 'mousedown', null,
         this.createBlockFunc_(block)));
-    this.listeners_.push(Blockly.bindEvent_(rect, 'mouseover', block.svg_,
-        block.svg_.addSelect));
-    this.listeners_.push(Blockly.bindEvent_(rect, 'mouseout', block.svg_,
-        block.svg_.removeSelect));
+    this.listeners_.push(Blockly.bindEvent_(rect, 'mouseover', block,
+        block.addSelect));
+    this.listeners_.push(Blockly.bindEvent_(rect, 'mouseout', block,
+        block.removeSelect));
   }
 
   // IE 11 is an incompetant browser that fails to fire mouseout events.
@@ -421,7 +422,7 @@ Blockly.Flyout.prototype.show = function(xmlList) {
   var deselectAll = function(e) {
     var blocks = this.workspace_.getTopBlocks(false);
     for (var i = 0, block; block = blocks[i]; i++) {
-      block.svg_.removeSelect();
+      block.removeSelect();
     }
   };
   this.listeners_.push(Blockly.bindEvent_(this.svgBackground_, 'mouseover',
@@ -479,18 +480,6 @@ Blockly.Flyout.prototype.reflow = function() {
   }
 };
 
-/**
- * Move a block to a specific location on the drawing surface.
- * @param {number} x Horizontal location.
- * @param {number} y Vertical location.
- */
-Blockly.Block.prototype.moveTo = function(x, y) {
-  var oldXY = this.getRelativeToSurfaceXY();
-  this.svg_.getRootElement().setAttribute('transform',
-      'translate(' + x + ', ' + y + ')');
-  this.moveConnections_(x - oldXY.x, y - oldXY.y);
-};
-
 /**
  * Handle a mouse-down on an SVG block in a non-closing flyout.
  * @param {!Blockly.Block} block The flyout block to copy.

core/generator.js

@@ -65,12 +65,15 @@ Blockly.Generator.prototype.STATEMENT_PREFIX = null;
 
 /**
  * Generate code for all blocks in the workspace to the specified language.
+ * @param {Blockly.Workspace=} opt_workspace Workspace to generate code from.
+ *     Defaults to main workspace.
  * @return {string} Generated code.
  */
-Blockly.Generator.prototype.workspaceToCode = function() {
+Blockly.Generator.prototype.workspaceToCode = function(opt_workspace) {
+  var workspace = opt_workspace || Blockly.mainWorkspace;
   var code = [];
-  this.init();
-  var blocks = Blockly.mainWorkspace.getTopBlocks(true);
+  this.init(workspace);
+  var blocks = workspace.getTopBlocks(true);
   for (var x = 0, block; block = blocks[x]; x++) {
     var line = this.blockToCode(block);
     if (goog.isArray(line)) {

core/icon.js

@@ -64,6 +64,10 @@ Blockly.Icon.prototype.iconY_ = 0;
  * @private
  */
 Blockly.Icon.prototype.createIcon_ = function() {
+  if (this.iconGroup_) {
+    // Icon already exists.
+    return;
+  }
   /* Here's the markup that will be generated:
   <g class="blocklyIconGroup"></g>
   */

core/inject.js

@@ -27,6 +27,7 @@
 goog.provide('Blockly.inject');
 
 goog.require('Blockly.Css');
+goog.require('Blockly.WorkspaceSvg');
 goog.require('goog.dom');
 
 
@@ -260,7 +261,7 @@ Blockly.createDom_ = function(container) {
       {'width': 10, 'height': 10, 'fill': '#aaa'}, pattern);
   Blockly.createSvgElement('path',
       {'d': 'M 0 0 L 10 10 M 10 0 L 0 10', 'stroke': '#cc0'}, pattern);
-  Blockly.mainWorkspace = new Blockly.Workspace(
+  Blockly.mainWorkspace = new Blockly.WorkspaceSvg(
       Blockly.getMainWorkspaceMetrics_,
       Blockly.setMainWorkspaceMetrics_);
   svg.appendChild(Blockly.mainWorkspace.createDom());
@@ -285,7 +286,7 @@ Blockly.createDom_ = function(container) {
     }
     if (!Blockly.hasScrollbars) {
       var workspaceChanged = function() {
-        if (Blockly.Block.dragMode_ == 0) {
+        if (Blockly.dragMode_ == 0) {
           var metrics = Blockly.mainWorkspace.getMetrics();
           var edgeLeft = metrics.viewLeft + metrics.absoluteLeft;
           var edgeTop = metrics.viewTop + metrics.absoluteTop;

core/input.js

@@ -69,7 +69,7 @@ Blockly.Input.prototype.appendField = function(field, opt_name) {
   if (goog.isString(field)) {
     field = new Blockly.FieldLabel(/** @type {string} */ (field));
   }
-  if (this.sourceBlock_.svg_) {
+  if (this.sourceBlock_.rendered) {
     field.init(this.sourceBlock_);
   }
   field.name = opt_name;
@@ -160,7 +160,7 @@ Blockly.Input.prototype.setVisible = function(visible) {
     }
     var child = this.connection.targetBlock();
     if (child) {
-      child.svg_.getRootElement().style.display = display;
+      child.getSvgRoot().style.display = display;
       if (!visible) {
         child.rendered = false;
       }

core/mutator.js

@@ -29,6 +29,7 @@ goog.provide('Blockly.Mutator');
 
 goog.require('Blockly.Bubble');
 goog.require('Blockly.Icon');
+goog.require('Blockly.WorkspaceSvg');
 
 
 /**
@@ -64,6 +65,10 @@ Blockly.Mutator.prototype.workspaceHeight_ = 0;
  * Create the icon on the block.
  */
 Blockly.Mutator.prototype.createIcon = function() {
+  if (this.iconMark_) {
+    // Icon already exists.
+    return;
+  }
   Blockly.Icon.prototype.createIcon_.call(this);
   /* Here's the markup that will be generated:
   <rect class="blocklyIconShield" width="16" height="16" rx="4" ry="4"/>
@@ -116,7 +121,7 @@ Blockly.Mutator.prototype.createEditor_ = function() {
       {'class': 'blocklyMutatorBackground',
        'height': '100%', 'width': '100%'}, this.svgDialog_);
   var mutator = this;
-  this.workspace_ = new Blockly.Workspace(
+  this.workspace_ = new Blockly.WorkspaceSvg(
       function() {return mutator.getFlyoutMetrics_();}, null);
   this.workspace_.flyout_ = new Blockly.Flyout();
   this.workspace_.flyout_.autoClose = false;
@@ -190,7 +195,7 @@ Blockly.Mutator.prototype.setVisible = function(visible) {
   if (visible) {
     // Create the bubble.
     this.bubble_ = new Blockly.Bubble(this.block_.workspace,
-        this.createEditor_(), this.block_.svg_.svgPath_,
+        this.createEditor_(), this.block_.svgPath_,
         this.iconX_, this.iconY_, null, null);
     var thisObj = this;
     this.workspace_.flyout_.init(this.workspace_);
@@ -247,7 +252,7 @@ Blockly.Mutator.prototype.setVisible = function(visible) {
  * @private
  */
 Blockly.Mutator.prototype.workspaceChanged_ = function() {
-  if (Blockly.Block.dragMode_ == 0) {
+  if (Blockly.dragMode_ == 0) {
     var blocks = this.workspace_.getTopBlocks(false);
     var MARGIN = 20;
     for (var b = 0, block; block = blocks[b]; b++) {
@@ -269,6 +274,8 @@ Blockly.Mutator.prototype.workspaceChanged_ = function() {
     this.block_.compose(this.rootBlock_);
     // Restore rendering and show the changes.
     this.block_.rendered = savedRendered;
+    // Mutation may have added some elements that need initalizing.
+    this.block_.initSvg();
     if (this.block_.rendered) {
       this.block_.render();
     }

core/realtime-client-utils.js

@@ -88,12 +88,12 @@ rtclient.getParams = function() {
       params[decodeURIComponent(paramStr[0])] = decodeURIComponent(paramStr[1]);
     }
   }
-  var hashFragment = window.location.hash;
+  var hashFragment = this.location && this.location.hash;
   if (hashFragment) {
     parseParams(hashFragment);
   }
   // Opening from Drive will encode the state in a query search parameter.
-  var searchFragment = window.location.search;
+  var searchFragment = this.location && this.location.search;
   if (searchFragment) {
     parseParams(searchFragment);
   }

core/scrollbar.js

@@ -176,9 +176,12 @@ Blockly.Scrollbar = function(workspace, horizontal, opt_pair) {
 /**
  * Width of vertical scrollbar or height of horizontal scrollbar.
  * Increase the size of scrollbars on touch devices.
+ * Don't define if there is no document object (e.g. node.js).
  */
-Blockly.Scrollbar.scrollbarThickness =
-    ('ontouchstart' in document.documentElement) ? 25 : 15;
+if (this.document) {
+  Blockly.Scrollbar.scrollbarThickness =
+      ('ontouchstart' in this.document.documentElement) ? 25 : 15;
+}
 
 /**
  * Dispose of this scrollbar.

core/tooltip.js

@@ -213,7 +213,7 @@ Blockly.Tooltip.onMouseMove_ = function(e) {
   if (!Blockly.Tooltip.element_ || !Blockly.Tooltip.element_.tooltip) {
     // No tooltip here to show.
     return;
-  } else if (Blockly.Block.dragMode_ != 0) {
+  } else if (Blockly.dragMode_ != 0) {
     // Don't display a tooltip during a drag.
     return;
   } else if (Blockly.WidgetDiv.isVisible()) {

core/utils.js

@@ -115,7 +115,8 @@ Blockly.bindEvent_ = function(node, name, thisObject, func) {
  * @type {Object}
  */
 Blockly.bindEvent_.TOUCH_MAP = {};
-if ('ontouchstart' in document.documentElement) {
+if (this.document && this.document.documentElement &&
+    'ontouchstart' in document.documentElement) {
   Blockly.bindEvent_.TOUCH_MAP = {
     'mousedown': ['touchstart'],
     'mousemove': ['touchmove'],

core/variables.js

@@ -38,15 +38,21 @@ Blockly.Variables.NAME_TYPE = 'VARIABLE';
 
 /**
  * Find all user-created variables.
- * @param {Blockly.Block=} opt_block Optional root block.
+ * @param {Blockly.Block|Blockly.Workspace|undefined} opt_root Optional root
+ *     block or workspace.  Defaults to main workspace.
  * @return {!Array.<string>} Array of variable names.
  */
-Blockly.Variables.allVariables = function(opt_block) {
+Blockly.Variables.allVariables = function(opt_root) {
+  var root = opt_root || Blockly.mainWorkspace;
   var blocks;
-  if (opt_block) {
-    blocks = opt_block.getDescendants();
+  if (root.getDescendants) {
+    // Root is Block.
+    blocks = root.getDescendants();
+  } else if (root.getAllBlocks) {
+    // Root is Workspace.
+    blocks = root.getAllBlocks();
   } else {
-    blocks = Blockly.mainWorkspace.getAllBlocks();
+    throw 'Not Block or Workspace: ' + root;
   }
   var variableHash = Object.create(null);
   // Iterate through every block and add each variable to the hash.
@@ -75,9 +81,12 @@ Blockly.Variables.allVariables = function(opt_block) {
  * Find all instances of the specified variable and rename them.
  * @param {string} oldName Variable to rename.
  * @param {string} newName New variable name.
+ * @param {Blockly.Workspace=} opt_workspace Workspace rename variables in.
+ *     Defaults to main workspace.
  */
-Blockly.Variables.renameVariable = function(oldName, newName) {
-  var blocks = Blockly.mainWorkspace.getAllBlocks();
+Blockly.Variables.renameVariable = function(oldName, newName, opt_workspace) {
+  var workspace = opt_workspace || Blockly.mainWorkspace;
+  var blocks = workspace.getAllBlocks();
   // Iterate through every block.
   for (var x = 0; x < blocks.length; x++) {
     var func = blocks[x].renameVar;

core/warning.js

@@ -107,7 +107,7 @@ Blockly.Warning.prototype.setVisible = function(visible) {
     var paragraph = Blockly.Warning.textToDom_(this.text_);
     this.bubble_ = new Blockly.Bubble(
         /** @type {!Blockly.Workspace} */ (this.block_.workspace),
-        paragraph, this.block_.svg_.svgPath_,
+        paragraph, this.block_.svgPath_,
         this.iconX_, this.iconY_, null, null);
     if (Blockly.RTL) {
       // Right-align the paragraph.

core/workspace.js

@@ -26,37 +26,38 @@
 
 goog.provide('Blockly.Workspace');
 
-// TODO(scr): Fix circular dependencies
-// goog.require('Blockly.Block');
-goog.require('Blockly.ScrollbarPair');
-goog.require('Blockly.Trashcan');
-goog.require('Blockly.Xml');
-goog.require('goog.math');
-goog.require('goog.math.Coordinate');
-
 
 /**
- * Class for a workspace.
- * @param {Function} getMetrics A function that returns size/scrolling metrics.
- * @param {Function} setMetrics A function that sets size/scrolling metrics.
+ * Class for a workspace.  This is a data structure that contains blocks.
+ * There is no UI, and can be created headlessly.
  * @constructor
  */
-Blockly.Workspace = function(getMetrics, setMetrics) {
-  this.getMetrics = getMetrics;
-  this.setMetrics = setMetrics;
-
-  /** @type {boolean} */
-  this.isFlyout = false;
+Blockly.Workspace = function() {
   /**
    * @type {!Array.<!Blockly.Block>}
    * @private
    */
   this.topBlocks_ = [];
+};
 
-  /** @type {number} */
-  this.maxBlocks = Infinity;
+/**
+ * Workspaces may be headless.
+ * @type {boolean} True if visible.  False if headless.
+ */
+Blockly.Workspace.prototype.rendered = false;
 
-  Blockly.ConnectionDB.init(this);
+/**
+ * Maximum number of blocks allowed in this workspace.
+ * @type number
+ */
+Blockly.Workspace.prototype.maxBlocks = Infinity;
+
+/**
+ * Dispose of this workspace.
+ * Unlink from all DOM elements to prevent memory leaks.
+ */
+Blockly.Workspace.prototype.dispose = function() {
+  this.clear();
 };
 
 /**
@@ -67,121 +68,12 @@ Blockly.Workspace = function(getMetrics, setMetrics) {
  */
 Blockly.Workspace.SCAN_ANGLE = 3;
 
-/**
- * Can this workspace be dragged around (true) or is it fixed (false)?
- * @type {boolean}
- */
-Blockly.Workspace.prototype.dragMode = false;
-
-/**
- * Current horizontal scrolling offset.
- * @type {number}
- */
-Blockly.Workspace.prototype.scrollX = 0;
-
-/**
- * Current vertical scrolling offset.
- * @type {number}
- */
-Blockly.Workspace.prototype.scrollY = 0;
-
-/**
- * The workspace's trashcan (if any).
- * @type {Blockly.Trashcan}
- */
-Blockly.Workspace.prototype.trashcan = null;
-
-/**
- * PID of upcoming firing of a change event.  Used to fire only one event
- * after multiple changes.
- * @type {?number}
- * @private
- */
-Blockly.Workspace.prototype.fireChangeEventPid_ = null;
-
-/**
- * This workspace's scrollbars, if they exist.
- * @type {Blockly.ScrollbarPair}
- */
-Blockly.Workspace.prototype.scrollbar = null;
-
-/**
- * Create the trash can elements.
- * @return {!Element} The workspace's SVG group.
- */
-Blockly.Workspace.prototype.createDom = function() {
-  /*
-  <g>
-    [Trashcan may go here]
-    <g></g>
-    <g></g>
-  </g>
-  */
-  this.svgGroup_ = Blockly.createSvgElement('g', {}, null);
-  this.svgBlockCanvas_ = Blockly.createSvgElement('g', {}, this.svgGroup_);
-  this.svgBubbleCanvas_ = Blockly.createSvgElement('g', {}, this.svgGroup_);
-  this.fireChangeEvent();
-  return this.svgGroup_;
-};
-
-/**
- * Dispose of this workspace.
- * Unlink from all DOM elements to prevent memory leaks.
- */
-Blockly.Workspace.prototype.dispose = function() {
-  if (this.svgGroup_) {
-    goog.dom.removeNode(this.svgGroup_);
-    this.svgGroup_ = null;
-  }
-  this.svgBlockCanvas_ = null;
-  this.svgBubbleCanvas_ = null;
-  if (this.flyout_) {
-    this.flyout_.dispose();
-    this.flyout_ = null;
-  }
-  if (this.trashcan) {
-    this.trashcan.dispose();
-    this.trashcan = null;
-  }
-};
-
-/**
- * Add a trashcan.
- */
-Blockly.Workspace.prototype.addTrashcan = function() {
-  if (Blockly.hasTrashcan && !Blockly.readOnly) {
-    this.trashcan = new Blockly.Trashcan(this);
-    var svgTrashcan = this.trashcan.createDom();
-    this.svgGroup_.insertBefore(svgTrashcan, this.svgBlockCanvas_);
-    this.trashcan.init();
-  }
-};
-
-/**
- * Get the SVG element that forms the drawing surface.
- * @return {!Element} SVG element.
- */
-Blockly.Workspace.prototype.getCanvas = function() {
-  return this.svgBlockCanvas_;
-};
-
-/**
- * Get the SVG element that forms the bubble surface.
- * @return {!SVGGElement} SVG element.
- */
-Blockly.Workspace.prototype.getBubbleCanvas = function() {
-  return this.svgBubbleCanvas_;
-};
-
 /**
  * Add a block to the list of top blocks.
  * @param {!Blockly.Block} block Block to remove.
  */
 Blockly.Workspace.prototype.addTopBlock = function(block) {
   this.topBlocks_.push(block);
-  if (Blockly.Realtime.isEnabled() && this == Blockly.mainWorkspace) {
-    Blockly.Realtime.addTopBlock(block);
-  }
   this.fireChangeEvent();
 };
 
@@ -191,9 +83,9 @@ Blockly.Workspace.prototype.addTopBlock = function(block) {
  */
 Blockly.Workspace.prototype.removeTopBlock = function(block) {
   var found = false;
-  for (var child, x = 0; child = this.topBlocks_[x]; x++) {
+  for (var child, i = 0; child = this.topBlocks_[i]; i++) {
     if (child == block) {
-      this.topBlocks_.splice(x, 1);
+      this.topBlocks_.splice(i, 1);
       found = true;
       break;
     }
@@ -201,9 +93,6 @@ Blockly.Workspace.prototype.removeTopBlock = function(block) {
   if (!found) {
     throw 'Block not present in workspace\'s list of top-most blocks.';
   }
-  if (Blockly.Realtime.isEnabled() && this == Blockly.mainWorkspace) {
-    Blockly.Realtime.removeTopBlock(block);
-  }
   this.fireChangeEvent();
 };
 
@@ -236,8 +125,8 @@ Blockly.Workspace.prototype.getTopBlocks = function(ordered) {
  */
 Blockly.Workspace.prototype.getAllBlocks = function() {
   var blocks = this.getTopBlocks(false);
-  for (var x = 0; x < blocks.length; x++) {
-    blocks.push.apply(blocks, blocks[x].getChildren());
+  for (var i = 0; i < blocks.length; i++) {
+    blocks.push.apply(blocks, blocks[i].getChildren());
   }
   return blocks;
 };
@@ -246,22 +135,19 @@ Blockly.Workspace.prototype.getAllBlocks = function() {
  * Dispose of all blocks in workspace.
  */
 Blockly.Workspace.prototype.clear = function() {
-  Blockly.hideChaff();
   while (this.topBlocks_.length) {
     this.topBlocks_[0].dispose();
   }
 };
 
 /**
- * Render all blocks in workspace.
+ * Returns the horizontal offset of the workspace.
+ * Intended for LTR/RTL compatibility in XML.
+ * Not relevant for a headless workspace.
+ * @return {number} Width.
  */
-Blockly.Workspace.prototype.render = function() {
-  var renderList = this.getAllBlocks();
-  for (var x = 0, block; block = renderList[x]; x++) {
-    if (!block.getChildren().length) {
-      block.render();
-    }
-  }
+Blockly.Workspace.prototype.getWidth = function() {
+  return 0;
 };
 
 /**
@@ -272,7 +158,7 @@ Blockly.Workspace.prototype.render = function() {
 Blockly.Workspace.prototype.getBlockById = function(id) {
   // If this O(n) function fails to scale well, maintain a hash table of IDs.
   var blocks = this.getAllBlocks();
-  for (var x = 0, block; block = blocks[x]; x++) {
+  for (var i = 0, block; block = blocks[i]; i++) {
     if (block.id == id) {
       return block;
     }
@@ -280,115 +166,6 @@ Blockly.Workspace.prototype.getBlockById = function(id) {
   return null;
 };
 
-/**
- * Turn the visual trace functionality on or off.
- * @param {boolean} armed True if the trace should be on.
- */
-Blockly.Workspace.prototype.traceOn = function(armed) {
-  this.traceOn_ = armed;
-  if (this.traceWrapper_) {
-    Blockly.unbindEvent_(this.traceWrapper_);
-    this.traceWrapper_ = null;
-  }
-  if (armed) {
-    this.traceWrapper_ = Blockly.bindEvent_(this.svgBlockCanvas_,
-        'blocklySelectChange', this, function() {this.traceOn_ = false});
-  }
-};
-
-/**
- * Highlight a block in the workspace.
- * @param {?string} id ID of block to find.
- */
-Blockly.Workspace.prototype.highlightBlock = function(id) {
-  if (this.traceOn_ && Blockly.Block.dragMode_ != 0) {
-    // The blocklySelectChange event normally prevents this, but sometimes
-    // there is a race condition on fast-executing apps.
-    this.traceOn(false);
-  }
-  if (!this.traceOn_) {
-    return;
-  }
-  var block = null;
-  if (id) {
-    block = this.getBlockById(id);
-    if (!block) {
-      return;
-    }
-  }
-  // Temporary turn off the listener for selection changes, so that we don't
-  // trip the monitor for detecting user activity.
-  this.traceOn(false);
-  // Select the current block.
-  if (block) {
-    block.select();
-  } else if (Blockly.selected) {
-    Blockly.selected.unselect();
-  }
-  // Restore the monitor for user activity after the selection event has fired.
-  var thisWorkspace = this;
-  setTimeout(function() {thisWorkspace.traceOn(true);}, 1);
-};
-
-/**
- * Fire a change event for this workspace.  Changes include new block, dropdown
- * edits, mutations, connections, etc.  Groups of simultaneous changes (e.g.
- * a tree of blocks being deleted) are merged into one event.
- * Applications may hook workspace changes by listening for
- * 'blocklyWorkspaceChange' on Blockly.mainWorkspace.getCanvas().
- */
-Blockly.Workspace.prototype.fireChangeEvent = function() {
-  if (this.fireChangeEventPid_) {
-    window.clearTimeout(this.fireChangeEventPid_);
-  }
-  var canvas = this.svgBlockCanvas_;
-  if (canvas) {
-    this.fireChangeEventPid_ = window.setTimeout(function() {
-        Blockly.fireUiEvent(canvas, 'blocklyWorkspaceChange');
-      }, 0);
-  }
-};
-
-/**
- * Paste the provided block onto the workspace.
- * @param {!Element} xmlBlock XML block element.
- */
-Blockly.Workspace.prototype.paste = function(xmlBlock) {
-  if (xmlBlock.getElementsByTagName('block').length >=
-      this.remainingCapacity()) {
-    return;
-  }
-  var block = Blockly.Xml.domToBlock(this, xmlBlock);
-  // Move the duplicate to original position.
-  var blockX = parseInt(xmlBlock.getAttribute('x'), 10);
-  var blockY = parseInt(xmlBlock.getAttribute('y'), 10);
-  if (!isNaN(blockX) && !isNaN(blockY)) {
-    if (Blockly.RTL) {
-      blockX = -blockX;
-    }
-    // Offset block until not clobbering another block.
-    do {
-      var collide = false;
-      var allBlocks = this.getAllBlocks();
-      for (var x = 0, otherBlock; otherBlock = allBlocks[x]; x++) {
-        var otherXY = otherBlock.getRelativeToSurfaceXY();
-        if (Math.abs(blockX - otherXY.x) <= 1 &&
-            Math.abs(blockY - otherXY.y) <= 1) {
-          if (Blockly.RTL) {
-            blockX -= Blockly.SNAP_RADIUS;
-          } else {
-            blockX += Blockly.SNAP_RADIUS;
-          }
-          blockY += Blockly.SNAP_RADIUS * 2;
-          collide = true;
-        }
-      }
-    } while (collide);
-    block.moveBy(blockX, blockY);
-  }
-  block.select();
-};
-
 /**
  * The number of blocks that may be added to the workspace before reaching
  *     the maxBlocks.
@@ -402,50 +179,8 @@ Blockly.Workspace.prototype.remainingCapacity = function() {
 };
 
 /**
- * Make a list of all the delete areas for this workspace.
+ * Something on this workspace has changed.
  */
-Blockly.Workspace.prototype.recordDeleteAreas = function() {
-  if (this.trashcan) {
-    this.deleteAreaTrash_ = this.trashcan.getRect();
-  } else {
-    this.deleteAreaTrash_ = null;
-  }
-  if (this.flyout_) {
-    this.deleteAreaToolbox_ = this.flyout_.getRect();
-  } else if (this.toolbox_) {
-    this.deleteAreaToolbox_ = this.toolbox_.getRect();
-  } else {
-    this.deleteAreaToolbox_ = null;
-  }
+Blockly.Workspace.prototype.fireChangeEvent = function() {
+  // NOP.
 };
-
-/**
- * Is the mouse event over a delete area (toolbar or non-closing flyout)?
- * Opens or closes the trashcan and sets the cursor as a side effect.
- * @param {!Event} e Mouse move event.
- * @return {boolean} True if event is in a delete area.
- */
-Blockly.Workspace.prototype.isDeleteArea = function(e) {
-  var isDelete = false;
-  var mouseXY = Blockly.mouseToSvg(e);
-  var xy = new goog.math.Coordinate(mouseXY.x, mouseXY.y);
-  if (this.deleteAreaTrash_) {
-    if (this.deleteAreaTrash_.contains(xy)) {
-      this.trashcan.setOpen_(true);
-      Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE);
-      return true;
-    }
-    this.trashcan.setOpen_(false);
-  }
-  if (this.deleteAreaToolbox_) {
-    if (this.deleteAreaToolbox_.contains(xy)) {
-      Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE);
-      return true;
-    }
-  }
-  Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);
-  return false;
-};
-
-// Export symbols that would otherwise be renamed by Closure compiler.
-Blockly.Workspace.prototype['clear'] = Blockly.Workspace.prototype.clear;

core/workspace_svg.js

@@ -0,0 +1,388 @@
+/**
+ * @license
+ * Visual Blocks Editor
+ *
+ * Copyright 2014 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Object representing a workspace rendered as SVG.
+ * @author fraser@google.com (Neil Fraser)
+ */
+'use strict';
+
+goog.provide('Blockly.WorkspaceSvg');
+
+// TODO(scr): Fix circular dependencies
+// goog.require('Blockly.Block');
+goog.require('Blockly.ScrollbarPair');
+goog.require('Blockly.Trashcan');
+goog.require('Blockly.Workspace');
+goog.require('Blockly.Xml');
+goog.require('goog.math');
+goog.require('goog.math.Coordinate');
+
+
+/**
+ * Class for a workspace.  This is an onscreen area with optional trashcan,
+ * scrollbars, bubbles, and dragging.
+ * @param {Function} getMetrics A function that returns size/scrolling metrics.
+ * @param {Function} setMetrics A function that sets size/scrolling metrics.
+ * @extends {Blockly.Workspace}
+ * @constructor
+ */
+Blockly.WorkspaceSvg = function(getMetrics, setMetrics) {
+  Blockly.WorkspaceSvg.superClass_.constructor.call(this);
+  this.getMetrics = getMetrics;
+  this.setMetrics = setMetrics;
+
+  Blockly.ConnectionDB.init(this);
+};
+goog.inherits(Blockly.WorkspaceSvg, Blockly.Workspace);
+
+/**
+ * Svg workspaces are user-visible (as opposed to a headless workspace).
+ * @type {boolean} True if visible.  False if headless.
+ */
+Blockly.WorkspaceSvg.prototype.rendered = true;
+
+/**
+ * Is this workspace the surface for a flyout?
+ * @type {boolean}
+ */
+Blockly.WorkspaceSvg.prototype.isFlyout = false;
+
+/**
+ * Can this workspace be dragged around (true) or is it fixed (false)?
+ * @type {boolean}
+ */
+Blockly.WorkspaceSvg.prototype.dragMode = false;
+
+/**
+ * Current horizontal scrolling offset.
+ * @type {number}
+ */
+Blockly.WorkspaceSvg.prototype.scrollX = 0;
+
+/**
+ * Current vertical scrolling offset.
+ * @type {number}
+ */
+Blockly.WorkspaceSvg.prototype.scrollY = 0;
+
+/**
+ * The workspace's trashcan (if any).
+ * @type {Blockly.Trashcan}
+ */
+Blockly.WorkspaceSvg.prototype.trashcan = null;
+
+/**
+ * PID of upcoming firing of a change event.  Used to fire only one event
+ * after multiple changes.
+ * @type {?number}
+ * @private
+ */
+Blockly.WorkspaceSvg.prototype.fireChangeEventPid_ = null;
+
+/**
+ * This workspace's scrollbars, if they exist.
+ * @type {Blockly.ScrollbarPair}
+ */
+Blockly.WorkspaceSvg.prototype.scrollbar = null;
+
+/**
+ * Create the trash can elements.
+ * @return {!Element} The workspace's SVG group.
+ */
+Blockly.WorkspaceSvg.prototype.createDom = function() {
+  /*
+  <g>
+    [Trashcan may go here]
+    <g></g>  // Block canvas
+    <g></g>  // Bubble canvas
+    [Scrollbars may go here]
+  </g>
+  */
+  this.svgGroup_ = Blockly.createSvgElement('g', {}, null);
+  this.svgBlockCanvas_ = Blockly.createSvgElement('g', {}, this.svgGroup_);
+  this.svgBubbleCanvas_ = Blockly.createSvgElement('g', {}, this.svgGroup_);
+  this.fireChangeEvent();
+  return this.svgGroup_;
+};
+
+/**
+ * Dispose of this workspace.
+ * Unlink from all DOM elements to prevent memory leaks.
+ */
+Blockly.WorkspaceSvg.prototype.dispose = function() {
+  // Stop rerendering.
+  this.rendered = false;
+  Blockly.WorkspaceSvg.superClass_.dispose.call(this);
+  if (this.svgGroup_) {
+    goog.dom.removeNode(this.svgGroup_);
+    this.svgGroup_ = null;
+  }
+  this.svgBlockCanvas_ = null;
+  this.svgBubbleCanvas_ = null;
+  if (this.flyout_) {
+    this.flyout_.dispose();
+    this.flyout_ = null;
+  }
+  if (this.trashcan) {
+    this.trashcan.dispose();
+    this.trashcan = null;
+  }
+};
+
+/**
+ * Add a trashcan.
+ */
+Blockly.WorkspaceSvg.prototype.addTrashcan = function() {
+  if (Blockly.hasTrashcan && !Blockly.readOnly) {
+    this.trashcan = new Blockly.Trashcan(this);
+    var svgTrashcan = this.trashcan.createDom();
+    this.svgGroup_.insertBefore(svgTrashcan, this.svgBlockCanvas_);
+    this.trashcan.init();
+  }
+};
+
+/**
+ * Get the SVG element that forms the drawing surface.
+ * @return {!Element} SVG element.
+ */
+Blockly.WorkspaceSvg.prototype.getCanvas = function() {
+  return this.svgBlockCanvas_;
+};
+
+/**
+ * Get the SVG element that forms the bubble surface.
+ * @return {!SVGGElement} SVG element.
+ */
+Blockly.WorkspaceSvg.prototype.getBubbleCanvas = function() {
+  return this.svgBubbleCanvas_;
+};
+
+/**
+ * Add a block to the list of top blocks.
+ * @param {!Blockly.Block} block Block to remove.
+ */
+Blockly.WorkspaceSvg.prototype.addTopBlock = function(block) {
+  Blockly.WorkspaceSvg.superClass_.addTopBlock.call(this, block);
+  if (Blockly.Realtime.isEnabled() && this == Blockly.mainWorkspace) {
+    Blockly.Realtime.addTopBlock(block);
+  }
+};
+
+/**
+ * Remove a block from the list of top blocks.
+ * @param {!Blockly.Block} block Block to remove.
+ */
+Blockly.WorkspaceSvg.prototype.removeTopBlock = function(block) {
+  Blockly.WorkspaceSvg.superClass_.removeTopBlock.call(this, block);
+  if (Blockly.Realtime.isEnabled() && this == Blockly.mainWorkspace) {
+    Blockly.Realtime.removeTopBlock(block);
+  }
+};
+
+/**
+ * Dispose of all blocks in workspace.
+ */
+Blockly.WorkspaceSvg.prototype.clear = function() {
+  Blockly.hideChaff();
+  Blockly.WorkspaceSvg.superClass_.clear.call(this);
+};
+
+/**
+ * Returns the horizontal offset of the workspace.
+ * Intended for LTR/RTL compatibility in XML.
+ * @return {number} Width.
+ */
+Blockly.WorkspaceSvg.prototype.getWidth = function() {
+  return this.getMetrics().viewWidth;
+};
+
+/**
+ * Render all blocks in workspace.
+ */
+Blockly.WorkspaceSvg.prototype.render = function() {
+  var renderList = this.getAllBlocks();
+  for (var x = 0, block; block = renderList[x]; x++) {
+    if (!block.getChildren().length) {
+      block.render();
+    }
+  }
+};
+
+/**
+ * Turn the visual trace functionality on or off.
+ * @param {boolean} armed True if the trace should be on.
+ */
+Blockly.WorkspaceSvg.prototype.traceOn = function(armed) {
+  this.traceOn_ = armed;
+  if (this.traceWrapper_) {
+    Blockly.unbindEvent_(this.traceWrapper_);
+    this.traceWrapper_ = null;
+  }
+  if (armed) {
+    this.traceWrapper_ = Blockly.bindEvent_(this.svgBlockCanvas_,
+        'blocklySelectChange', this, function() {this.traceOn_ = false});
+  }
+};
+
+/**
+ * Highlight a block in the workspace.
+ * @param {?string} id ID of block to find.
+ */
+Blockly.WorkspaceSvg.prototype.highlightBlock = function(id) {
+  if (this.traceOn_ && Blockly.dragMode_ != 0) {
+    // The blocklySelectChange event normally prevents this, but sometimes
+    // there is a race condition on fast-executing apps.
+    this.traceOn(false);
+  }
+  if (!this.traceOn_) {
+    return;
+  }
+  var block = null;
+  if (id) {
+    block = this.getBlockById(id);
+    if (!block) {
+      return;
+    }
+  }
+  // Temporary turn off the listener for selection changes, so that we don't
+  // trip the monitor for detecting user activity.
+  this.traceOn(false);
+  // Select the current block.
+  if (block) {
+    block.select();
+  } else if (Blockly.selected) {
+    Blockly.selected.unselect();
+  }
+  // Restore the monitor for user activity after the selection event has fired.
+  var thisWorkspace = this;
+  setTimeout(function() {thisWorkspace.traceOn(true);}, 1);
+};
+
+/**
+ * Fire a change event for this workspace.  Changes include new block, dropdown
+ * edits, mutations, connections, etc.  Groups of simultaneous changes (e.g.
+ * a tree of blocks being deleted) are merged into one event.
+ * Applications may hook workspace changes by listening for
+ * 'blocklyWorkspaceChange' on Blockly.mainWorkspace.getCanvas().
+ */
+Blockly.WorkspaceSvg.prototype.fireChangeEvent = function() {
+  if (!this.rendered) {
+    return;
+  }
+  if (this.fireChangeEventPid_) {
+    window.clearTimeout(this.fireChangeEventPid_);
+  }
+  var canvas = this.svgBlockCanvas_;
+  if (canvas) {
+    this.fireChangeEventPid_ = window.setTimeout(function() {
+        Blockly.fireUiEvent(canvas, 'blocklyWorkspaceChange');
+      }, 0);
+  }
+};
+
+/**
+ * Paste the provided block onto the workspace.
+ * @param {!Element} xmlBlock XML block element.
+ */
+Blockly.WorkspaceSvg.prototype.paste = function(xmlBlock) {
+  if (xmlBlock.getElementsByTagName('block').length >=
+      this.remainingCapacity()) {
+    return;
+  }
+  var block = Blockly.Xml.domToBlock(this, xmlBlock);
+  // Move the duplicate to original position.
+  var blockX = parseInt(xmlBlock.getAttribute('x'), 10);
+  var blockY = parseInt(xmlBlock.getAttribute('y'), 10);
+  if (!isNaN(blockX) && !isNaN(blockY)) {
+    if (Blockly.RTL) {
+      blockX = -blockX;
+    }
+    // Offset block until not clobbering another block.
+    do {
+      var collide = false;
+      var allBlocks = this.getAllBlocks();
+      for (var x = 0, otherBlock; otherBlock = allBlocks[x]; x++) {
+        var otherXY = otherBlock.getRelativeToSurfaceXY();
+        if (Math.abs(blockX - otherXY.x) <= 1 &&
+            Math.abs(blockY - otherXY.y) <= 1) {
+          if (Blockly.RTL) {
+            blockX -= Blockly.SNAP_RADIUS;
+          } else {
+            blockX += Blockly.SNAP_RADIUS;
+          }
+          blockY += Blockly.SNAP_RADIUS * 2;
+          collide = true;
+        }
+      }
+    } while (collide);
+    block.moveBy(blockX, blockY);
+  }
+  block.select();
+};
+
+/**
+ * Make a list of all the delete areas for this workspace.
+ */
+Blockly.WorkspaceSvg.prototype.recordDeleteAreas = function() {
+  if (this.trashcan) {
+    this.deleteAreaTrash_ = this.trashcan.getRect();
+  } else {
+    this.deleteAreaTrash_ = null;
+  }
+  if (this.flyout_) {
+    this.deleteAreaToolbox_ = this.flyout_.getRect();
+  } else if (this.toolbox_) {
+    this.deleteAreaToolbox_ = this.toolbox_.getRect();
+  } else {
+    this.deleteAreaToolbox_ = null;
+  }
+};
+
+/**
+ * Is the mouse event over a delete area (toolbar or non-closing flyout)?
+ * Opens or closes the trashcan and sets the cursor as a side effect.
+ * @param {!Event} e Mouse move event.
+ * @return {boolean} True if event is in a delete area.
+ */
+Blockly.WorkspaceSvg.prototype.isDeleteArea = function(e) {
+  var isDelete = false;
+  var mouseXY = Blockly.mouseToSvg(e);
+  var xy = new goog.math.Coordinate(mouseXY.x, mouseXY.y);
+  if (this.deleteAreaTrash_) {
+    if (this.deleteAreaTrash_.contains(xy)) {
+      this.trashcan.setOpen_(true);
+      Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE);
+      return true;
+    }
+    this.trashcan.setOpen_(false);
+  }
+  if (this.deleteAreaToolbox_) {
+    if (this.deleteAreaToolbox_.contains(xy)) {
+      Blockly.Css.setCursor(Blockly.Css.Cursor.DELETE);
+      return true;
+    }
+  }
+  Blockly.Css.setCursor(Blockly.Css.Cursor.CLOSED);
+  return false;
+};
+
+// Export symbols that would otherwise be renamed by Closure compiler.
+Blockly.WorkspaceSvg.prototype['clear'] = Blockly.WorkspaceSvg.prototype.clear;

core/xml.js

@@ -32,13 +32,13 @@ goog.provide('Blockly.Xml');
 
 /**
  * Encode a block tree as XML.
- * @param {!Object} workspace The SVG workspace.
+ * @param {!Blockly.Workspace} workspace The workspace containing blocks.
  * @return {!Element} XML document.
  */
 Blockly.Xml.workspaceToDom = function(workspace) {
   var width;  // Not used in LTR.
   if (Blockly.RTL) {
-    width = workspace.getMetrics().viewWidth;
+    width = workarea.getWidth();
   }
   var xml = goog.dom.createDom('xml');
   var blocks = workspace.getTopBlocks(true);
@@ -82,13 +82,15 @@ Blockly.Xml.blockToDom_ = function(block) {
     }
   }
 
-  if (block.comment) {
-    var commentElement = goog.dom.createDom('comment', null,
-        block.comment.getText());
-    commentElement.setAttribute('pinned', block.comment.isVisible());
-    var hw = block.comment.getBubbleSize();
-    commentElement.setAttribute('h', hw.height);
-    commentElement.setAttribute('w', hw.width);
+  var commentText = block.getCommentText();
+  if (commentText) {
+    var commentElement = goog.dom.createDom('comment', null, commentText);
+    if (typeof block.comment == 'object') {
+      commentElement.setAttribute('pinned', block.comment.isVisible());
+      var hw = block.comment.getBubbleSize();
+      commentElement.setAttribute('h', hw.height);
+      commentElement.setAttribute('w', hw.width);
+    }
     element.appendChild(commentElement);
   }
 
@@ -208,12 +210,13 @@ Blockly.Xml.textToDom = function(text) {
 
 /**
  * Decode an XML DOM and create blocks on the workspace.
- * @param {!Blockly.Workspace} workspace The SVG workspace.
+ * @param {!Blockly.Workspace} workspace The workspace.
  * @param {!Element} xml XML DOM.
  */
 Blockly.Xml.domToWorkspace = function(workspace, xml) {
+  var width;  // Not used in LTR.
   if (Blockly.RTL) {
-    var width = workspace.getMetrics().viewWidth;
+    width = workspace.getWidth();
   }
   for (var x = 0, xmlChild; xmlChild = xml.childNodes[x]; x++) {
     if (xmlChild.nodeName.toLowerCase() == 'block') {
@@ -260,7 +263,8 @@ Blockly.Xml.domToBlock = function(workspace, xmlBlock, opt_reuseBlock) {
   } else {
     block = Blockly.Block.obtain(workspace, prototypeName);
   }
-  if (!block.svg_) {
+  if (block.initSvg) {
+    // SVG blocks are rendered, headless blocks are not.
     block.initSvg();
   }
 
@@ -308,6 +312,10 @@ Blockly.Xml.domToBlock = function(workspace, xmlBlock, opt_reuseBlock) {
         // Custom data for an advanced block.
         if (block.domToMutation) {
           block.domToMutation(xmlChild);
+          if (block.initSvg) {
+            // Mutation may have added some elements that need initalizing.
+            block.initSvg();
+          }
         }
         break;
       case 'comment':
@@ -317,12 +325,15 @@ Blockly.Xml.domToBlock = function(workspace, xmlBlock, opt_reuseBlock) {
           // Give the renderer a millisecond to render and position the block
           // before positioning the comment bubble.
           setTimeout(function() {
-            block.comment.setVisible(visible == 'true');
+            if (block.comment && block.comment.setVisible) {
+              block.comment.setVisible(visible == 'true');
+            }
           }, 1);
         }
         var bubbleW = parseInt(xmlChild.getAttribute('w'), 10);
         var bubbleH = parseInt(xmlChild.getAttribute('h'), 10);
-        if (!isNaN(bubbleW) && !isNaN(bubbleH)) {
+        if (!isNaN(bubbleW) && !isNaN(bubbleH) &&
+            block.comment && block.comment.setVisible) {
           block.comment.setBubbleSize(bubbleW, bubbleH);
         }
         break;
@@ -370,6 +381,7 @@ Blockly.Xml.domToBlock = function(workspace, xmlBlock, opt_reuseBlock) {
         break;
       default:
         // Unknown tag; ignore.  Same principle as HTML parsers.
+        console.log('Ignoring unknown tag: ' + xmlChild.nodeName);
     }
   }
 
@@ -377,13 +389,15 @@ Blockly.Xml.domToBlock = function(workspace, xmlBlock, opt_reuseBlock) {
   if (collapsed) {
     block.setCollapsed(collapsed == 'true');
   }
-  var next = block.getNextBlock();
-  if (next) {
-    // Next block in a stack needs to square off its corners.
-    // Rendering a child will render its parent.
-    next.render();
-  } else {
-    block.render();
+  if (workspace.rendered) {
+    var next = block.getNextBlock();
+    if (next) {
+      // Next block in a stack needs to square off its corners.
+      // Rendering a child will render its parent.
+      next.render();
+    } else {
+      block.render();
+    }
   }
   return block;
 };
@@ -402,13 +416,13 @@ Blockly.Xml.deleteNext = function(xmlBlock) {
 };
 
 // Export symbols that would otherwise be renamed by Closure compiler.
-if (!window['Blockly']) {
-  window['Blockly'] = {};
+if (!this['Blockly']) {
+  this['Blockly'] = {};
 }
-if (!window['Blockly']['Xml']) {
-  window['Blockly']['Xml'] = {};
+if (!this['Blockly']['Xml']) {
+  this['Blockly']['Xml'] = {};
 }
-window['Blockly']['Xml']['domToText'] = Blockly.Xml.domToText;
-window['Blockly']['Xml']['domToWorkspace'] = Blockly.Xml.domToWorkspace;
-window['Blockly']['Xml']['textToDom'] = Blockly.Xml.textToDom;
-window['Blockly']['Xml']['workspaceToDom'] = Blockly.Xml.workspaceToDom;
+this['Blockly']['Xml']['domToText'] = Blockly.Xml.domToText;
+this['Blockly']['Xml']['domToWorkspace'] = Blockly.Xml.domToWorkspace;
+this['Blockly']['Xml']['textToDom'] = Blockly.Xml.textToDom;
+this['Blockly']['Xml']['workspaceToDom'] = Blockly.Xml.workspaceToDom;

dart_compressed.js

@@ -5,7 +5,8 @@
 // Copyright 2014 Google Inc.  Apache License 2.0
 Blockly.Dart=new Blockly.Generator("Dart");Blockly.Dart.addReservedWords("assert,break,case,catch,class,const,continue,default,do,else,enum,extends,false,final,finally,for,if,in,is,new,null,rethrow,return,super,switch,this,throw,true,try,var,void,while,with,print,identityHashCode,identical,BidirectionalIterator,Comparable,double,Function,int,Invocation,Iterable,Iterator,List,Map,Match,num,Pattern,RegExp,Set,StackTrace,String,StringSink,Type,bool,DateTime,Deprecated,Duration,Expando,Null,Object,RuneIterator,Runes,Stopwatch,StringBuffer,Symbol,Uri,Comparator,AbstractClassInstantiationError,ArgumentError,AssertionError,CastError,ConcurrentModificationError,CyclicInitializationError,Error,Exception,FallThroughError,FormatException,IntegerDivisionByZeroException,NoSuchMethodError,NullThrownError,OutOfMemoryError,RangeError,StackOverflowError,StateError,TypeError,UnimplementedError,UnsupportedError");
 Blockly.Dart.ORDER_ATOMIC=0;Blockly.Dart.ORDER_UNARY_POSTFIX=1;Blockly.Dart.ORDER_UNARY_PREFIX=2;Blockly.Dart.ORDER_MULTIPLICATIVE=3;Blockly.Dart.ORDER_ADDITIVE=4;Blockly.Dart.ORDER_SHIFT=5;Blockly.Dart.ORDER_BITWISE_AND=6;Blockly.Dart.ORDER_BITWISE_XOR=7;Blockly.Dart.ORDER_BITWISE_OR=8;Blockly.Dart.ORDER_RELATIONAL=9;Blockly.Dart.ORDER_EQUALITY=10;Blockly.Dart.ORDER_LOGICAL_AND=11;Blockly.Dart.ORDER_LOGICAL_OR=12;Blockly.Dart.ORDER_CONDITIONAL=13;Blockly.Dart.ORDER_CASCADE=14;
-Blockly.Dart.ORDER_ASSIGNMENT=15;Blockly.Dart.ORDER_NONE=99;Blockly.Dart.init=function(){Blockly.Dart.definitions_=Object.create(null);Blockly.Dart.functionNames_=Object.create(null);Blockly.Dart.variableDB_?Blockly.Dart.variableDB_.reset():Blockly.Dart.variableDB_=new Blockly.Names(Blockly.Dart.RESERVED_WORDS_);for(var a=[],b=Blockly.Variables.allVariables(),c=0;c<b.length;c++)a[c]="var "+Blockly.Dart.variableDB_.getName(b[c],Blockly.Variables.NAME_TYPE)+";";Blockly.Dart.definitions_.variables=a.join("\n")};
+Blockly.Dart.ORDER_ASSIGNMENT=15;Blockly.Dart.ORDER_NONE=99;
+Blockly.Dart.init=function(a){Blockly.Dart.definitions_=Object.create(null);Blockly.Dart.functionNames_=Object.create(null);Blockly.Dart.variableDB_?Blockly.Dart.variableDB_.reset():Blockly.Dart.variableDB_=new Blockly.Names(Blockly.Dart.RESERVED_WORDS_);var b=[];a=Blockly.Variables.allVariables(a);for(var c=0;c<a.length;c++)b[c]="var "+Blockly.Dart.variableDB_.getName(a[c],Blockly.Variables.NAME_TYPE)+";";Blockly.Dart.definitions_.variables=b.join("\n")};
 Blockly.Dart.finish=function(a){a&&(a=Blockly.Dart.prefixLines(a,Blockly.Dart.INDENT));a="main() {\n"+a+"}";var b=[],c=[],d;for(d in Blockly.Dart.definitions_){var e=Blockly.Dart.definitions_[d];e.match(/^import\s/)?b.push(e):c.push(e)}return(b.join("\n")+"\n\n"+c.join("\n\n")).replace(/\n\n+/g,"\n\n").replace(/\n*$/,"\n\n\n")+a};Blockly.Dart.scrubNakedValue=function(a){return a+";\n"};
 Blockly.Dart.quote_=function(a){a=a.replace(/\\/g,"\\\\").replace(/\n/g,"\\\n").replace(/\$/g,"\\$").replace(/'/g,"\\'");return"'"+a+"'"};
 Blockly.Dart.scrub_=function(a,b){var c="";if(!a.outputConnection||!a.outputConnection.targetConnection){var d=a.getCommentText();d&&(c+=Blockly.Dart.prefixLines(d,"// ")+"\n");for(var e=0;e<a.inputList.length;e++)a.inputList[e].type==Blockly.INPUT_VALUE&&(d=a.inputList[e].connection.targetBlock())&&(d=Blockly.Dart.allNestedComments(d))&&(c+=Blockly.Dart.prefixLines(d,"// "))}e=a.nextConnection&&a.nextConnection.targetBlock();e=Blockly.Dart.blockToCode(e);return c+b+e};

demos/headless/index.html

@@ -0,0 +1,120 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Blockly Demo: Headless</title>
+  <script src="../../blockly_compressed.js"></script>
+  <script src="../../blocks_compressed.js"></script>
+  <script src="../../python_compressed.js"></script>
+  <script src="../../msg/js/en.js"></script>
+  <style>
+    body {
+      background-color: #fff;
+      font-family: sans-serif;
+    }
+    h1 {
+      font-weight: normal;
+      font-size: 140%;
+    }
+    td {
+      vertical-align: top;
+    }
+    textarea {
+      width: 100%;
+      height: 20em;
+    }
+  </style>
+</head>
+<body>
+  <h1><a href="https://developers.google.com/blockly/">Blockly</a> &gt;
+    <a href="../index.html">Demos</a> &gt; Headless</h1>
+
+  <p>This is a simple demo of generating Python code from XML with no graphics.
+  This might be useful for server-side code generation.</p>
+
+  <table style="width: 100%">
+    <tr>
+      <td style="width:50%">
+        <textarea id="xml_input">
+<xml id="startBlocks" style="display: none">
+  <block type="controls_if" inline="false" x="20" y="20">
+    <mutation else="1"></mutation>
+    <value name="IF0">
+      <block type="logic_compare" inline="true">
+        <field name="OP">EQ</field>
+        <value name="A">
+          <block type="math_arithmetic" inline="true">
+            <field name="OP">MULTIPLY</field>
+            <value name="A">
+              <block type="math_number">
+                <field name="NUM">6</field>
+              </block>
+            </value>
+            <value name="B">
+              <block type="math_number">
+                <field name="NUM">7</field>
+              </block>
+            </value>
+          </block>
+        </value>
+        <value name="B">
+          <block type="math_number">
+            <field name="NUM">42</field>
+          </block>
+        </value>
+      </block>
+    </value>
+    <statement name="DO0">
+      <block type="text_print" inline="false">
+        <value name="TEXT">
+          <block type="text">
+            <field name="TEXT">Don't panic</field>
+          </block>
+        </value>
+      </block>
+    </statement>
+    <statement name="ELSE">
+      <block type="text_print" inline="false">
+        <value name="TEXT">
+          <block type="text">
+            <field name="TEXT">Panic</field>
+          </block>
+        </value>
+      </block>
+    </statement>
+  </block>
+</xml>
+        </textarea>
+      </td>
+      <td>
+      </td>
+      <td style="width:50%">
+        <textarea id="code_output" readonly></textarea>
+      </td>
+    </tr>
+  </table>
+
+  <div style="text-align: center">
+    <button onclick="generate()">Generate Python &#10548;</button>
+  </div>
+
+  <script>
+    function generate() {
+      // Parse the XML into a tree.
+      var xmlText = document.getElementById('xml_input').value;
+      try {
+        var xml = Blockly.Xml.textToDom(xmlText)
+      } catch (e) {
+        alert(e);
+        return;
+      }
+      // Create a headless workspace.
+      var workspace = new Blockly.Workspace();
+      Blockly.Xml.domToWorkspace(workspace, xml);
+      var code = Blockly.Python.workspaceToCode(workspace);
+      document.getElementById('code_output').value = code;
+    }
+  </script>
+
+</body>
+</html>

demos/index.html

@@ -88,6 +88,18 @@
       </td>
     </tr>
 
+    <tr>
+      <td>
+        <a href="headless/index.html">
+          <img src="headless/icon.png" height=80 width=100>
+        </a>
+      </td>
+      <td>
+        <div><a href="headless/index.html">Headless</a></div>
+        <div>Generate code from XML without graphics.</div>
+      </td>
+    </tr>
+
     <tr>
       <td>
         <a href="interpreter/index.html">

generators/dart.js

@@ -73,8 +73,10 @@ Blockly.Dart.ORDER_NONE = 99;          // (...)
 
 /**
  * Initialise the database of variable names.
+ * @param {Blockly.Workspace=} opt_workspace Workspace to generate code from.
+ *     Defaults to main workspace.
  */
-Blockly.Dart.init = function() {
+Blockly.Dart.init = function(opt_workspace) {
   // Create a dictionary of definitions to be printed before the code.
   Blockly.Dart.definitions_ = Object.create(null);
   // Create a dictionary mapping desired function names in definitions_
@@ -89,7 +91,7 @@ Blockly.Dart.init = function() {
   }
 
   var defvars = [];
-  var variables = Blockly.Variables.allVariables();
+  var variables = Blockly.Variables.allVariables(opt_workspace);
   for (var x = 0; x < variables.length; x++) {
     defvars[x] = 'var ' +
         Blockly.Dart.variableDB_.getName(variables[x],

generators/javascript.js

@@ -105,8 +105,10 @@ Blockly.JavaScript.ORDER_NONE = 99;          // (...)
 
 /**
  * Initialise the database of variable names.
+ * @param {Blockly.Workspace=} opt_workspace Workspace to generate code from.
+ *     Defaults to main workspace.
  */
-Blockly.JavaScript.init = function() {
+Blockly.JavaScript.init = function(opt_workspace) {
   // Create a dictionary of definitions to be printed before the code.
   Blockly.JavaScript.definitions_ = Object.create(null);
   // Create a dictionary mapping desired function names in definitions_
@@ -121,7 +123,7 @@ Blockly.JavaScript.init = function() {
   }
 
   var defvars = [];
-  var variables = Blockly.Variables.allVariables();
+  var variables = Blockly.Variables.allVariables(opt_workspace);
   for (var x = 0; x < variables.length; x++) {
     defvars[x] = 'var ' +
         Blockly.JavaScript.variableDB_.getName(variables[x],

generators/python.js

@@ -81,8 +81,10 @@ Blockly.Python.ORDER_NONE = 99;             // (...)
 
 /**
  * Initialise the database of variable names.
+ * @param {Blockly.Workspace=} opt_workspace Workspace to generate code from.
+ *     Defaults to main workspace.
  */
-Blockly.Python.init = function() {
+Blockly.Python.init = function(opt_workspace) {
   // Create a dictionary of definitions to be printed before the code.
   Blockly.Python.definitions_ = Object.create(null);
   // Create a dictionary mapping desired function names in definitions_
@@ -97,7 +99,7 @@ Blockly.Python.init = function() {
   }
 
   var defvars = [];
-  var variables = Blockly.Variables.allVariables();
+  var variables = Blockly.Variables.allVariables(opt_workspace);
   for (var x = 0; x < variables.length; x++) {
     defvars[x] = Blockly.Python.variableDB_.getName(variables[x],
         Blockly.Variables.NAME_TYPE) + ' = None';

javascript_compressed.js

@@ -7,7 +7,7 @@ Blockly.JavaScript=new Blockly.Generator("JavaScript");Blockly.JavaScript.addRes
 Blockly.JavaScript.ORDER_ATOMIC=0;Blockly.JavaScript.ORDER_MEMBER=1;Blockly.JavaScript.ORDER_NEW=1;Blockly.JavaScript.ORDER_FUNCTION_CALL=2;Blockly.JavaScript.ORDER_INCREMENT=3;Blockly.JavaScript.ORDER_DECREMENT=3;Blockly.JavaScript.ORDER_LOGICAL_NOT=4;Blockly.JavaScript.ORDER_BITWISE_NOT=4;Blockly.JavaScript.ORDER_UNARY_PLUS=4;Blockly.JavaScript.ORDER_UNARY_NEGATION=4;Blockly.JavaScript.ORDER_TYPEOF=4;Blockly.JavaScript.ORDER_VOID=4;Blockly.JavaScript.ORDER_DELETE=4;
 Blockly.JavaScript.ORDER_MULTIPLICATION=5;Blockly.JavaScript.ORDER_DIVISION=5;Blockly.JavaScript.ORDER_MODULUS=5;Blockly.JavaScript.ORDER_ADDITION=6;Blockly.JavaScript.ORDER_SUBTRACTION=6;Blockly.JavaScript.ORDER_BITWISE_SHIFT=7;Blockly.JavaScript.ORDER_RELATIONAL=8;Blockly.JavaScript.ORDER_IN=8;Blockly.JavaScript.ORDER_INSTANCEOF=8;Blockly.JavaScript.ORDER_EQUALITY=9;Blockly.JavaScript.ORDER_BITWISE_AND=10;Blockly.JavaScript.ORDER_BITWISE_XOR=11;Blockly.JavaScript.ORDER_BITWISE_OR=12;
 Blockly.JavaScript.ORDER_LOGICAL_AND=13;Blockly.JavaScript.ORDER_LOGICAL_OR=14;Blockly.JavaScript.ORDER_CONDITIONAL=15;Blockly.JavaScript.ORDER_ASSIGNMENT=16;Blockly.JavaScript.ORDER_COMMA=17;Blockly.JavaScript.ORDER_NONE=99;
-Blockly.JavaScript.init=function(){Blockly.JavaScript.definitions_=Object.create(null);Blockly.JavaScript.functionNames_=Object.create(null);Blockly.JavaScript.variableDB_?Blockly.JavaScript.variableDB_.reset():Blockly.JavaScript.variableDB_=new Blockly.Names(Blockly.JavaScript.RESERVED_WORDS_);for(var a=[],b=Blockly.Variables.allVariables(),c=0;c<b.length;c++)a[c]="var "+Blockly.JavaScript.variableDB_.getName(b[c],Blockly.Variables.NAME_TYPE)+";";Blockly.JavaScript.definitions_.variables=a.join("\n")};
+Blockly.JavaScript.init=function(a){Blockly.JavaScript.definitions_=Object.create(null);Blockly.JavaScript.functionNames_=Object.create(null);Blockly.JavaScript.variableDB_?Blockly.JavaScript.variableDB_.reset():Blockly.JavaScript.variableDB_=new Blockly.Names(Blockly.JavaScript.RESERVED_WORDS_);var b=[];a=Blockly.Variables.allVariables(a);for(var c=0;c<a.length;c++)b[c]="var "+Blockly.JavaScript.variableDB_.getName(a[c],Blockly.Variables.NAME_TYPE)+";";Blockly.JavaScript.definitions_.variables=b.join("\n")};
 Blockly.JavaScript.finish=function(a){var b=[],c;for(c in Blockly.JavaScript.definitions_)b.push(Blockly.JavaScript.definitions_[c]);return b.join("\n\n")+"\n\n\n"+a};Blockly.JavaScript.scrubNakedValue=function(a){return a+";\n"};Blockly.JavaScript.quote_=function(a){a=a.replace(/\\/g,"\\\\").replace(/\n/g,"\\\n").replace(/'/g,"\\'");return"'"+a+"'"};
 Blockly.JavaScript.scrub_=function(a,b){var c="";if(!a.outputConnection||!a.outputConnection.targetConnection){var d=a.getCommentText();d&&(c+=Blockly.JavaScript.prefixLines(d,"// ")+"\n");for(var e=0;e<a.inputList.length;e++)a.inputList[e].type==Blockly.INPUT_VALUE&&(d=a.inputList[e].connection.targetBlock())&&(d=Blockly.JavaScript.allNestedComments(d))&&(c+=Blockly.JavaScript.prefixLines(d,"// "))}e=a.nextConnection&&a.nextConnection.targetBlock();e=Blockly.JavaScript.blockToCode(e);return c+b+
 e};

python_compressed.js

@@ -6,7 +6,7 @@
 Blockly.Python=new Blockly.Generator("Python");Blockly.Python.addReservedWords("and,as,assert,break,class,continue,def,del,elif,else,except,exec,finally,for,from,global,if,import,in,is,lambda,not,or,pass,print,raise,return,try,while,with,yield,True,False,None,NotImplemented,Ellipsis,__debug__,quit,exit,copyright,license,credits,abs,divmod,input,open,staticmethod,all,enumerate,int,ord,str,any,eval,isinstance,pow,sum,basestring,execfile,issubclass,print,super,bin,file,iter,property,tuple,bool,filter,len,range,type,bytearray,float,list,raw_input,unichr,callable,format,locals,reduce,unicode,chr,frozenset,long,reload,vars,classmethod,getattr,map,repr,xrange,cmp,globals,max,reversed,zip,compile,hasattr,memoryview,round,__import__,complex,hash,min,set,apply,delattr,help,next,setattr,buffer,dict,hex,object,slice,coerce,dir,id,oct,sorted,intern");
 Blockly.Python.ORDER_ATOMIC=0;Blockly.Python.ORDER_COLLECTION=1;Blockly.Python.ORDER_STRING_CONVERSION=1;Blockly.Python.ORDER_MEMBER=2;Blockly.Python.ORDER_FUNCTION_CALL=2;Blockly.Python.ORDER_EXPONENTIATION=3;Blockly.Python.ORDER_UNARY_SIGN=4;Blockly.Python.ORDER_BITWISE_NOT=4;Blockly.Python.ORDER_MULTIPLICATIVE=5;Blockly.Python.ORDER_ADDITIVE=6;Blockly.Python.ORDER_BITWISE_SHIFT=7;Blockly.Python.ORDER_BITWISE_AND=8;Blockly.Python.ORDER_BITWISE_XOR=9;Blockly.Python.ORDER_BITWISE_OR=10;
 Blockly.Python.ORDER_RELATIONAL=11;Blockly.Python.ORDER_LOGICAL_NOT=12;Blockly.Python.ORDER_LOGICAL_AND=13;Blockly.Python.ORDER_LOGICAL_OR=14;Blockly.Python.ORDER_CONDITIONAL=15;Blockly.Python.ORDER_LAMBDA=16;Blockly.Python.ORDER_NONE=99;
-Blockly.Python.init=function(){Blockly.Python.definitions_=Object.create(null);Blockly.Python.functionNames_=Object.create(null);Blockly.Python.variableDB_?Blockly.Python.variableDB_.reset():Blockly.Python.variableDB_=new Blockly.Names(Blockly.Python.RESERVED_WORDS_);for(var a=[],b=Blockly.Variables.allVariables(),c=0;c<b.length;c++)a[c]=Blockly.Python.variableDB_.getName(b[c],Blockly.Variables.NAME_TYPE)+" = None";Blockly.Python.definitions_.variables=a.join("\n")};
+Blockly.Python.init=function(a){Blockly.Python.definitions_=Object.create(null);Blockly.Python.functionNames_=Object.create(null);Blockly.Python.variableDB_?Blockly.Python.variableDB_.reset():Blockly.Python.variableDB_=new Blockly.Names(Blockly.Python.RESERVED_WORDS_);var b=[];a=Blockly.Variables.allVariables(a);for(var c=0;c<a.length;c++)b[c]=Blockly.Python.variableDB_.getName(a[c],Blockly.Variables.NAME_TYPE)+" = None";Blockly.Python.definitions_.variables=b.join("\n")};
 Blockly.Python.finish=function(a){var b=[],c=[],d;for(d in Blockly.Python.definitions_){var e=Blockly.Python.definitions_[d];e.match(/^(from\s+\S+\s+)?import\s+\S+/)?b.push(e):c.push(e)}return(b.join("\n")+"\n\n"+c.join("\n\n")).replace(/\n\n+/g,"\n\n").replace(/\n*$/,"\n\n\n")+a};Blockly.Python.scrubNakedValue=function(a){return a+"\n"};Blockly.Python.quote_=function(a){a=a.replace(/\\/g,"\\\\").replace(/\n/g,"\\\n").replace(/\%/g,"\\%").replace(/'/g,"\\'");return"'"+a+"'"};
 Blockly.Python.scrub_=function(a,b){var c="";if(!a.outputConnection||!a.outputConnection.targetConnection){var d=a.getCommentText();d&&(c+=Blockly.Python.prefixLines(d,"# ")+"\n");for(var e=0;e<a.inputList.length;e++)a.inputList[e].type==Blockly.INPUT_VALUE&&(d=a.inputList[e].connection.targetBlock())&&(d=Blockly.Python.allNestedComments(d))&&(c+=Blockly.Python.prefixLines(d,"# "))}e=a.nextConnection&&a.nextConnection.targetBlock();e=Blockly.Python.blockToCode(e);return c+b+e};
 // Copyright 2012 Google Inc.  Apache License 2.0