diff --git a/blockly_compressed.js b/blockly_compressed.js
index 7a5e7e961..5027565e0 100644
--- a/blockly_compressed.js
+++ b/blockly_compressed.js
@@ -76,7 +76,7 @@ goog.array.removeLast=function(a,b){var c=goog.array.lastIndexOf(a,b);return 0<=
 goog.array.concat=function(a){return Array.prototype.concat.apply([],arguments)};goog.array.join=function(a){return Array.prototype.concat.apply([],arguments)};goog.array.toArray=function(a){var b=a.length;if(0<b){for(var c=Array(b),d=0;d<b;d++)c[d]=a[d];return c}return[]};goog.array.clone=goog.array.toArray;goog.array.extend=function(a,b){for(var c=1;c<arguments.length;c++){var d=arguments[c];if(goog.isArrayLike(d)){var e=a.length||0,f=d.length||0;a.length=e+f;for(var g=0;g<f;g++)a[e+g]=d[g]}else a.push(d)}};
 goog.array.splice=function(a,b,c,d){goog.asserts.assert(null!=a.length);return Array.prototype.splice.apply(a,goog.array.slice(arguments,1))};goog.array.slice=function(a,b,c){goog.asserts.assert(null!=a.length);return 2>=arguments.length?Array.prototype.slice.call(a,b):Array.prototype.slice.call(a,b,c)};
 goog.array.removeDuplicates=function(a,b,c){b=b||a;var d=function(a){return goog.isObject(a)?"o"+goog.getUid(a):(typeof a).charAt(0)+a};c=c||d;d={};for(var e=0,f=0;f<a.length;){var g=a[f++],h=c(g);Object.prototype.hasOwnProperty.call(d,h)||(d[h]=!0,b[e++]=g)}b.length=e};goog.array.binarySearch=function(a,b,c){return goog.array.binarySearch_(a,c||goog.array.defaultCompare,!1,b)};goog.array.binarySelect=function(a,b,c){return goog.array.binarySearch_(a,b,!0,void 0,c)};
-goog.array.binarySearch_=function(a,b,c,d,e){for(var f=0,g=a.length,h;f<g;){var k=f+g>>1;var n=c?b.call(e,a[k],k,a):b(d,a[k]);0<n?f=k+1:(g=k,h=!n)}return h?f:~f};goog.array.sort=function(a,b){a.sort(b||goog.array.defaultCompare)};goog.array.stableSort=function(a,b){for(var c=Array(a.length),d=0;d<a.length;d++)c[d]={index:d,value:a[d]};var e=b||goog.array.defaultCompare;goog.array.sort(c,function(a,b){return e(a.value,b.value)||a.index-b.index});for(d=0;d<a.length;d++)a[d]=c[d].value};
+goog.array.binarySearch_=function(a,b,c,d,e){for(var f=0,g=a.length,h;f<g;){var k=f+g>>1;var m=c?b.call(e,a[k],k,a):b(d,a[k]);0<m?f=k+1:(g=k,h=!m)}return h?f:~f};goog.array.sort=function(a,b){a.sort(b||goog.array.defaultCompare)};goog.array.stableSort=function(a,b){for(var c=Array(a.length),d=0;d<a.length;d++)c[d]={index:d,value:a[d]};var e=b||goog.array.defaultCompare;goog.array.sort(c,function(a,b){return e(a.value,b.value)||a.index-b.index});for(d=0;d<a.length;d++)a[d]=c[d].value};
 goog.array.sortByKey=function(a,b,c){var d=c||goog.array.defaultCompare;goog.array.sort(a,function(a,c){return d(b(a),b(c))})};goog.array.sortObjectsByKey=function(a,b,c){goog.array.sortByKey(a,function(a){return a[b]},c)};goog.array.isSorted=function(a,b,c){b=b||goog.array.defaultCompare;for(var d=1;d<a.length;d++){var e=b(a[d-1],a[d]);if(0<e||0==e&&c)return!1}return!0};
 goog.array.equals=function(a,b,c){if(!goog.isArrayLike(a)||!goog.isArrayLike(b)||a.length!=b.length)return!1;var d=a.length;c=c||goog.array.defaultCompareEquality;for(var e=0;e<d;e++)if(!c(a[e],b[e]))return!1;return!0};goog.array.compare3=function(a,b,c){c=c||goog.array.defaultCompare;for(var d=Math.min(a.length,b.length),e=0;e<d;e++){var f=c(a[e],b[e]);if(0!=f)return f}return goog.array.defaultCompare(a.length,b.length)};goog.array.defaultCompare=function(a,b){return a>b?1:a<b?-1:0};
 goog.array.inverseDefaultCompare=function(a,b){return-goog.array.defaultCompare(a,b)};goog.array.defaultCompareEquality=function(a,b){return a===b};goog.array.binaryInsert=function(a,b,c){c=goog.array.binarySearch(a,b,c);return 0>c?(goog.array.insertAt(a,b,-(c+1)),!0):!1};goog.array.binaryRemove=function(a,b,c){b=goog.array.binarySearch(a,b,c);return 0<=b?goog.array.removeAt(a,b):!1};
@@ -87,7 +87,7 @@ goog.array.zip=function(a){if(!arguments.length)return[];for(var b=[],c=argument
 goog.array.concatMap=function(a,b,c){return goog.array.concat.apply([],goog.array.map(a,b,c))};goog.math={};goog.math.randomInt=function(a){return Math.floor(Math.random()*a)};goog.math.uniformRandom=function(a,b){return a+Math.random()*(b-a)};goog.math.clamp=function(a,b,c){return Math.min(Math.max(a,b),c)};goog.math.modulo=function(a,b){var c=a%b;return 0>c*b?c+b:c};goog.math.lerp=function(a,b,c){return a+c*(b-a)};goog.math.nearlyEquals=function(a,b,c){return Math.abs(a-b)<=(c||1E-6)};goog.math.standardAngle=function(a){return goog.math.modulo(a,360)};
 goog.math.standardAngleInRadians=function(a){return goog.math.modulo(a,2*Math.PI)};goog.math.toRadians=function(a){return a*Math.PI/180};goog.math.toDegrees=function(a){return 180*a/Math.PI};goog.math.angleDx=function(a,b){return b*Math.cos(goog.math.toRadians(a))};goog.math.angleDy=function(a,b){return b*Math.sin(goog.math.toRadians(a))};goog.math.angle=function(a,b,c,d){return goog.math.standardAngle(goog.math.toDegrees(Math.atan2(d-b,c-a)))};
 goog.math.angleDifference=function(a,b){var c=goog.math.standardAngle(b)-goog.math.standardAngle(a);180<c?c-=360:-180>=c&&(c=360+c);return c};goog.math.sign=function(a){return 0<a?1:0>a?-1:a};
-goog.math.longestCommonSubsequence=function(a,b,c,d){c=c||function(a,b){return a==b};d=d||function(b,c){return a[b]};for(var 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]);var n=[];h=e;for(k=f;0<h&&0<k;)c(a[h-1],b[k-1])?(n.unshift(d(h-1,k-1)),h--,k--):g[h-1][k]>g[h][k-1]?h--:k--;return n};
+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]);var m=[];h=e;for(k=f;0<h&&0<k;)c(a[h-1],b[k-1])?(m.unshift(d(h-1,k-1)),h--,k--):g[h-1][k]>g[h][k-1]?h--:k--;return m};
 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)};goog.math.isNegativeZero=function(a){return 0==a&&0>1/a};goog.math.log10Floor=function(a){if(0<a){var b=Math.round(Math.log(a)*Math.LOG10E);return b-(parseFloat("1e"+b)>a?1:0)}return 0==a?-Infinity:NaN};goog.math.safeFloor=function(a,b){goog.asserts.assert(!goog.isDef(b)||0<b);return Math.floor(a+(b||2E-15))};
 goog.math.safeCeil=function(a,b){goog.asserts.assert(!goog.isDef(b)||0<b);return Math.ceil(a-(b||2E-15))};goog.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.prototype.equals=function(a){return a instanceof goog.math.Coordinate&&goog.math.Coordinate.equals(this,a)};goog.math.Coordinate.equals=function(a,b){return a==b?!0:a&&b?a.x==b.x&&a.y==b.y:!1};
@@ -115,7 +115,7 @@ goog.string.escapeChar=function(a){if(a in goog.string.jsEscapeCache_)return goo
 goog.string.caseInsensitiveContains=function(a,b){return goog.string.contains(a.toLowerCase(),b.toLowerCase())};goog.string.countOf=function(a,b){return a&&b?a.split(b).length-1:0};goog.string.removeAt=function(a,b,c){var d=a;0<=b&&b<a.length&&0<c&&(d=a.substr(0,b)+a.substr(b+c,a.length-b-c));return d};goog.string.remove=function(a,b){return a.replace(b,"")};goog.string.removeAll=function(a,b){var c=new RegExp(goog.string.regExpEscape(b),"g");return a.replace(c,"")};
 goog.string.replaceAll=function(a,b,c){b=new RegExp(goog.string.regExpEscape(b),"g");return a.replace(b,c.replace(/\$/g,"$$$$"))};goog.string.regExpEscape=function(a){return String(a).replace(/([-()\[\]{}+?*.$\^|,:#<!\\])/g,"\\$1").replace(/\x08/g,"\\x08")};goog.string.repeat=String.prototype.repeat?function(a,b){return a.repeat(b)}:function(a,b){return Array(b+1).join(a)};
 goog.string.padNumber=function(a,b,c){a=goog.isDef(c)?a.toFixed(c):String(a);c=a.indexOf(".");-1==c&&(c=a.length);return goog.string.repeat("0",Math.max(0,b-c))+a};goog.string.makeSafe=function(a){return null==a?"":String(a)};goog.string.buildString=function(a){return Array.prototype.join.call(arguments,"")};goog.string.getRandomString=function(){return Math.floor(2147483648*Math.random()).toString(36)+Math.abs(Math.floor(2147483648*Math.random())^goog.now()).toString(36)};
-goog.string.compareVersions=function(a,b){for(var c=0,d=goog.string.trim(String(a)).split("."),e=goog.string.trim(String(b)).split("."),f=Math.max(d.length,e.length),g=0;0==c&&g<f;g++){var h=d[g]||"",k=e[g]||"";do{h=/(\d*)(\D*)(.*)/.exec(h)||["","","",""];k=/(\d*)(\D*)(.*)/.exec(k)||["","","",""];if(0==h[0].length&&0==k[0].length)break;c=0==h[1].length?0:parseInt(h[1],10);var n=0==k[1].length?0:parseInt(k[1],10);c=goog.string.compareElements_(c,n)||goog.string.compareElements_(0==h[2].length,0==k[2].length)||
+goog.string.compareVersions=function(a,b){for(var c=0,d=goog.string.trim(String(a)).split("."),e=goog.string.trim(String(b)).split("."),f=Math.max(d.length,e.length),g=0;0==c&&g<f;g++){var h=d[g]||"",k=e[g]||"";do{h=/(\d*)(\D*)(.*)/.exec(h)||["","","",""];k=/(\d*)(\D*)(.*)/.exec(k)||["","","",""];if(0==h[0].length&&0==k[0].length)break;c=0==h[1].length?0:parseInt(h[1],10);var m=0==k[1].length?0:parseInt(k[1],10);c=goog.string.compareElements_(c,m)||goog.string.compareElements_(0==h[2].length,0==k[2].length)||
 goog.string.compareElements_(h[2],k[2]);h=h[3];k=k[3]}while(0==c)}return c};goog.string.compareElements_=function(a,b){return a<b?-1:a>b?1:0};goog.string.hashCode=function(a){for(var b=0,c=0;c<a.length;++c)b=31*b+a.charCodeAt(c)>>>0;return b};goog.string.uniqueStringCounter_=2147483648*Math.random()|0;goog.string.createUniqueString=function(){return"goog_"+goog.string.uniqueStringCounter_++};goog.string.toNumber=function(a){var b=Number(a);return 0==b&&goog.string.isEmptyOrWhitespace(a)?NaN:b};
 goog.string.isLowerCamelCase=function(a){return/^[a-z]+([A-Z][a-z]*)*$/.test(a)};goog.string.isUpperCamelCase=function(a){return/^([A-Z][a-z]*)+$/.test(a)};goog.string.toCamelCase=function(a){return String(a).replace(/\-([a-z])/g,function(a,c){return c.toUpperCase()})};goog.string.toSelectorCase=function(a){return String(a).replace(/([A-Z])/g,"-$1").toLowerCase()};
 goog.string.toTitleCase=function(a,b){var c=goog.isString(b)?goog.string.regExpEscape(b):"\\s";return a.replace(new RegExp("(^"+(c?"|["+c+"]+":"")+")([a-z])","g"),function(a,b,c){return b+c.toUpperCase()})};goog.string.capitalize=function(a){return String(a.charAt(0)).toUpperCase()+String(a.substr(1)).toLowerCase()};goog.string.parseInt=function(a){isFinite(a)&&(a=String(a));return goog.isString(a)?/^\s*-?0x/i.test(a)?parseInt(a,16):parseInt(a,10):NaN};
@@ -215,10 +215,10 @@ goog.Disposable.getUndisposedObjects=function(){var a=[],b;for(b in goog.Disposa
 goog.Disposable.prototype.dispose=function(){if(!this.disposed_&&(this.disposed_=!0,this.disposeInternal(),goog.Disposable.MONITORING_MODE!=goog.Disposable.MonitoringMode.OFF)){var a=goog.getUid(this);if(goog.Disposable.MONITORING_MODE==goog.Disposable.MonitoringMode.PERMANENT&&!goog.Disposable.instances_.hasOwnProperty(a))throw Error(this+" did not call the goog.Disposable base constructor or was disposed of after a clearUndisposedObjects call");if(goog.Disposable.MONITORING_MODE!=goog.Disposable.MonitoringMode.OFF&&
 this.onDisposeCallbacks_&&0<this.onDisposeCallbacks_.length)throw Error(this+" did not empty its onDisposeCallbacks queue. This probably means it overrode dispose() or disposeInternal() without calling the superclass' method.");delete goog.Disposable.instances_[a]}};goog.Disposable.prototype.registerDisposable=function(a){this.addOnDisposeCallback(goog.partial(goog.dispose,a))};
 goog.Disposable.prototype.addOnDisposeCallback=function(a,b){this.disposed_?goog.isDef(b)?a.call(b):a():(this.onDisposeCallbacks_||(this.onDisposeCallbacks_=[]),this.onDisposeCallbacks_.push(goog.isDef(b)?goog.bind(a,b):a))};goog.Disposable.prototype.disposeInternal=function(){if(this.onDisposeCallbacks_)for(;this.onDisposeCallbacks_.length;)this.onDisposeCallbacks_.shift()()};goog.Disposable.isDisposed=function(a){return a&&"function"==typeof a.isDisposed?a.isDisposed():!1};
-goog.dispose=function(a){a&&"function"==typeof a.dispose&&a.dispose()};goog.disposeAll=function(a){for(var b=0,c=arguments.length;b<c;++b){var d=arguments[b];goog.isArrayLike(d)?goog.disposeAll.apply(null,d):goog.dispose(d)}};goog.debug.errorcontext={};goog.debug.errorcontext.addErrorContext=function(a,b,c){a[goog.debug.errorcontext.CONTEXT_KEY_]||(a[goog.debug.errorcontext.CONTEXT_KEY_]={});a[goog.debug.errorcontext.CONTEXT_KEY_][b]=c};goog.debug.errorcontext.getErrorContext=function(a){return a[goog.debug.errorcontext.CONTEXT_KEY_]||{}};goog.debug.errorcontext.CONTEXT_KEY_="__closure__error__context__984382";goog.debug.LOGGING_ENABLED=goog.DEBUG;goog.debug.FORCE_SLOPPY_STACKS=!1;goog.debug.catchErrors=function(a,b,c){c=c||goog.global;var d=c.onerror,e=!!b;goog.userAgent.WEBKIT&&!goog.userAgent.isVersionOrHigher("535.3")&&(e=!e);c.onerror=function(b,c,h,k,n){d&&d(b,c,h,k,n);a({message:b,fileName:c,line:h,lineNumber:h,col:k,error:n});return e}};
+goog.dispose=function(a){a&&"function"==typeof a.dispose&&a.dispose()};goog.disposeAll=function(a){for(var b=0,c=arguments.length;b<c;++b){var d=arguments[b];goog.isArrayLike(d)?goog.disposeAll.apply(null,d):goog.dispose(d)}};goog.debug.errorcontext={};goog.debug.errorcontext.addErrorContext=function(a,b,c){a[goog.debug.errorcontext.CONTEXT_KEY_]||(a[goog.debug.errorcontext.CONTEXT_KEY_]={});a[goog.debug.errorcontext.CONTEXT_KEY_][b]=c};goog.debug.errorcontext.getErrorContext=function(a){return a[goog.debug.errorcontext.CONTEXT_KEY_]||{}};goog.debug.errorcontext.CONTEXT_KEY_="__closure__error__context__984382";goog.debug.LOGGING_ENABLED=goog.DEBUG;goog.debug.FORCE_SLOPPY_STACKS=!1;goog.debug.catchErrors=function(a,b,c){c=c||goog.global;var d=c.onerror,e=!!b;goog.userAgent.WEBKIT&&!goog.userAgent.isVersionOrHigher("535.3")&&(e=!e);c.onerror=function(b,c,h,k,m){d&&d(b,c,h,k,m);a({message:b,fileName:c,line:h,lineNumber:h,col:k,error:m});return e}};
 goog.debug.expose=function(a,b){if("undefined"==typeof a)return"undefined";if(null==a)return"NULL";var c=[],d;for(d in a)if(b||!goog.isFunction(a[d])){var e=d+" = ";try{e+=a[d]}catch(f){e+="*** "+f+" ***"}c.push(e)}return c.join("\n")};
 goog.debug.deepExpose=function(a,b){var c=[],d=[],e={},f=function(a,g){var h=g+"  ";try{if(goog.isDef(a))if(goog.isNull(a))c.push("NULL");else if(goog.isString(a))c.push('"'+a.replace(/\n/g,"\n"+g)+'"');else if(goog.isFunction(a))c.push(String(a).replace(/\n/g,"\n"+g));else if(goog.isObject(a)){goog.hasUid(a)||d.push(a);var k=goog.getUid(a);if(e[k])c.push("*** reference loop detected (id="+k+") ***");else{e[k]=!0;c.push("{");for(var l in a)if(b||!goog.isFunction(a[l]))c.push("\n"),c.push(h),c.push(l+
-" = "),f(a[l],h);c.push("\n"+g+"}");delete e[k]}}else c.push(a);else c.push("undefined")}catch(m){c.push("*** "+m+" ***")}};f(a,"");for(var g=0;g<d.length;g++)goog.removeUid(d[g]);return c.join("")};goog.debug.exposeArray=function(a){for(var b=[],c=0;c<a.length;c++)goog.isArray(a[c])?b.push(goog.debug.exposeArray(a[c])):b.push(a[c]);return"[ "+b.join(", ")+" ]"};
+" = "),f(a[l],h);c.push("\n"+g+"}");delete e[k]}}else c.push(a);else c.push("undefined")}catch(n){c.push("*** "+n+" ***")}};f(a,"");for(var g=0;g<d.length;g++)goog.removeUid(d[g]);return c.join("")};goog.debug.exposeArray=function(a){for(var b=[],c=0;c<a.length;c++)goog.isArray(a[c])?b.push(goog.debug.exposeArray(a[c])):b.push(a[c]);return"[ "+b.join(", ")+" ]"};
 goog.debug.normalizeErrorObject=function(a){var b=goog.getObjectByName("window.location.href");if(goog.isString(a))return{message:a,name:"Unknown error",lineNumber:"Not available",fileName:b,stack:"Not available"};var c=!1;try{var d=a.lineNumber||a.line||"Not available"}catch(f){d="Not available",c=!0}try{var e=a.fileName||a.filename||a.sourceURL||goog.global.$googDebugFname||b}catch(f){e="Not available",c=!0}return!c&&a.lineNumber&&a.fileName&&a.stack&&a.message&&a.name?a:{message:a.message||"Not available",
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 goog.debug.enhanceErrorWithContext=function(a,b){var c=goog.debug.enhanceError(a);if(b)for(var d in b)goog.debug.errorcontext.addErrorContext(c,d,b[d]);return c};
@@ -399,7 +399,7 @@ goog.dom.getDocumentScroll=function(){return goog.dom.getDocumentScroll_(documen
 goog.dom.getDocumentScrollElement_=function(a){return a.scrollingElement?a.scrollingElement:!goog.userAgent.WEBKIT&&goog.dom.isCss1CompatMode_(a)?a.documentElement:a.body||a.documentElement};goog.dom.getWindow=function(a){return a?goog.dom.getWindow_(a):window};goog.dom.getWindow_=function(a){return a.parentWindow||a.defaultView};goog.dom.createDom=function(a,b,c){return goog.dom.createDom_(document,arguments)};
 goog.dom.createDom_=function(a,b){var c=String(b[0]),d=b[1];if(!goog.dom.BrowserFeature.CAN_ADD_NAME_OR_TYPE_ATTRIBUTES&&d&&(d.name||d.type)){c=["<",c];d.name&&c.push(' name="',goog.string.htmlEscape(d.name),'"');if(d.type){c.push(' type="',goog.string.htmlEscape(d.type),'"');var e={};goog.object.extend(e,d);delete e.type;d=e}c.push(">");c=c.join("")}c=a.createElement(c);d&&(goog.isString(d)?c.className=d:goog.isArray(d)?c.className=d.join(" "):goog.dom.setProperties(c,d));2<b.length&&goog.dom.append_(a,
 c,b,2);return c};goog.dom.append_=function(a,b,c,d){function e(c){c&&b.appendChild(goog.isString(c)?a.createTextNode(c):c)}for(;d<c.length;d++){var f=c[d];goog.isArrayLike(f)&&!goog.dom.isNodeLike(f)?goog.array.forEach(goog.dom.isNodeList(f)?goog.array.toArray(f):f,e):e(f)}};goog.dom.$dom=goog.dom.createDom;goog.dom.createElement=function(a){return goog.dom.createElement_(document,a)};goog.dom.createElement_=function(a,b){return a.createElement(String(b))};goog.dom.createTextNode=function(a){return document.createTextNode(String(a))};
-goog.dom.createTable=function(a,b,c){return goog.dom.createTable_(document,a,b,!!c)};goog.dom.createTable_=function(a,b,c,d){for(var e=goog.dom.createElement_(a,"TABLE"),f=e.appendChild(goog.dom.createElement_(a,"TBODY")),g=0;g<b;g++){for(var h=goog.dom.createElement_(a,"TR"),k=0;k<c;k++){var n=goog.dom.createElement_(a,"TD");d&&goog.dom.setTextContent(n,goog.string.Unicode.NBSP);h.appendChild(n)}f.appendChild(h)}return e};
+goog.dom.createTable=function(a,b,c){return goog.dom.createTable_(document,a,b,!!c)};goog.dom.createTable_=function(a,b,c,d){for(var e=goog.dom.createElement_(a,"TABLE"),f=e.appendChild(goog.dom.createElement_(a,"TBODY")),g=0;g<b;g++){for(var h=goog.dom.createElement_(a,"TR"),k=0;k<c;k++){var m=goog.dom.createElement_(a,"TD");d&&goog.dom.setTextContent(m,goog.string.Unicode.NBSP);h.appendChild(m)}f.appendChild(h)}return e};
 goog.dom.constHtmlToNode=function(a){var b=goog.array.map(arguments,goog.string.Const.unwrap);b=goog.html.uncheckedconversions.safeHtmlFromStringKnownToSatisfyTypeContract(goog.string.Const.from("Constant HTML string, that gets turned into a Node later, so it will be automatically balanced."),b.join(""));return goog.dom.safeHtmlToNode(b)};goog.dom.safeHtmlToNode=function(a){return goog.dom.safeHtmlToNode_(document,a)};
 goog.dom.safeHtmlToNode_=function(a,b){var c=goog.dom.createElement_(a,"DIV");goog.dom.BrowserFeature.INNER_HTML_NEEDS_SCOPED_ELEMENT?(goog.dom.safe.setInnerHtml(c,goog.html.SafeHtml.concat(goog.html.SafeHtml.BR,b)),c.removeChild(c.firstChild)):goog.dom.safe.setInnerHtml(c,b);return goog.dom.childrenToNode_(a,c)};goog.dom.childrenToNode_=function(a,b){if(1==b.childNodes.length)return b.removeChild(b.firstChild);for(var c=a.createDocumentFragment();b.firstChild;)c.appendChild(b.firstChild);return c};
 goog.dom.isCss1CompatMode=function(){return goog.dom.isCss1CompatMode_(document)};goog.dom.isCss1CompatMode_=function(a){return goog.dom.COMPAT_MODE_KNOWN_?goog.dom.ASSUME_STANDARDS_MODE:"CSS1Compat"==a.compatMode};goog.dom.canHaveChildren=function(a){if(a.nodeType!=goog.dom.NodeType.ELEMENT)return!1;switch(a.tagName){case "APPLET":case "AREA":case "BASE":case "BR":case "COL":case "COMMAND":case "EMBED":case "FRAME":case "HR":case "IMG":case "INPUT":case "IFRAME":case "ISINDEX":case "KEYGEN":case "LINK":case "NOFRAMES":case "NOSCRIPT":case "META":case "OBJECT":case "PARAM":case "SCRIPT":case "SOURCE":case "STYLE":case "TRACK":case "WBR":return!1}return!0};
@@ -616,8 +616,8 @@ goog.ui.ContainerRenderer.prototype.getClassNames=function(a){var b=this.getCssC
 goog.ui.ControlRenderer.TOGGLE_ARIA_STATE_MAP_=goog.object.create(goog.a11y.aria.Role.BUTTON,goog.a11y.aria.State.PRESSED,goog.a11y.aria.Role.CHECKBOX,goog.a11y.aria.State.CHECKED,goog.a11y.aria.Role.MENU_ITEM,goog.a11y.aria.State.SELECTED,goog.a11y.aria.Role.MENU_ITEM_CHECKBOX,goog.a11y.aria.State.CHECKED,goog.a11y.aria.Role.MENU_ITEM_RADIO,goog.a11y.aria.State.CHECKED,goog.a11y.aria.Role.RADIO,goog.a11y.aria.State.CHECKED,goog.a11y.aria.Role.TAB,goog.a11y.aria.State.SELECTED,goog.a11y.aria.Role.TREEITEM,
 goog.a11y.aria.State.SELECTED);goog.ui.ControlRenderer.prototype.getAriaRole=function(){};goog.ui.ControlRenderer.prototype.createDom=function(a){return a.getDomHelper().createDom("DIV",this.getClassNames(a).join(" "),a.getContent())};goog.ui.ControlRenderer.prototype.getContentElement=function(a){return a};
 goog.ui.ControlRenderer.prototype.enableClassName=function(a,b,c){if(a=a.getElement?a.getElement():a){var d=[b];goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("7")&&(d=this.getAppliedCombinedClassNames_(goog.dom.classlist.get(a),b),d.push(b));goog.dom.classlist.enableAll(a,d,c)}};goog.ui.ControlRenderer.prototype.enableExtraClassName=function(a,b,c){this.enableClassName(a,b,c)};goog.ui.ControlRenderer.prototype.canDecorate=function(a){return!0};
-goog.ui.ControlRenderer.prototype.decorate=function(a,b){b.id&&a.setId(b.id);var c=this.getContentElement(b);c&&c.firstChild?a.setContentInternal(c.firstChild.nextSibling?goog.array.clone(c.childNodes):c.firstChild):a.setContentInternal(null);var d=0,e=this.getCssClass(),f=this.getStructuralCssClass(),g=!1,h=!1,k=!1,n=goog.array.toArray(goog.dom.classlist.get(b));goog.array.forEach(n,function(a){g||a!=e?h||a!=f?d|=this.getStateFromClass(a):h=!0:(g=!0,f==e&&(h=!0));this.getStateFromClass(a)==goog.ui.Component.State.DISABLED&&
-(goog.asserts.assertElement(c),goog.dom.isFocusableTabIndex(c)&&goog.dom.setFocusableTabIndex(c,!1))},this);a.setStateInternal(d);g||(n.push(e),f==e&&(h=!0));h||n.push(f);var p=a.getExtraClassNames();p&&n.push.apply(n,p);if(goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("7")){var l=this.getAppliedCombinedClassNames_(n);0<l.length&&(n.push.apply(n,l),k=!0)}g&&h&&!p&&!k||goog.dom.classlist.set(b,n.join(" "));return b};
+goog.ui.ControlRenderer.prototype.decorate=function(a,b){b.id&&a.setId(b.id);var c=this.getContentElement(b);c&&c.firstChild?a.setContentInternal(c.firstChild.nextSibling?goog.array.clone(c.childNodes):c.firstChild):a.setContentInternal(null);var d=0,e=this.getCssClass(),f=this.getStructuralCssClass(),g=!1,h=!1,k=!1,m=goog.array.toArray(goog.dom.classlist.get(b));goog.array.forEach(m,function(a){g||a!=e?h||a!=f?d|=this.getStateFromClass(a):h=!0:(g=!0,f==e&&(h=!0));this.getStateFromClass(a)==goog.ui.Component.State.DISABLED&&
+(goog.asserts.assertElement(c),goog.dom.isFocusableTabIndex(c)&&goog.dom.setFocusableTabIndex(c,!1))},this);a.setStateInternal(d);g||(m.push(e),f==e&&(h=!0));h||m.push(f);var p=a.getExtraClassNames();p&&m.push.apply(m,p);if(goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("7")){var l=this.getAppliedCombinedClassNames_(m);0<l.length&&(m.push.apply(m,l),k=!0)}g&&h&&!p&&!k||goog.dom.classlist.set(b,m.join(" "));return b};
 goog.ui.ControlRenderer.prototype.initializeDom=function(a){a.isRightToLeft()&&this.setRightToLeft(a.getElement(),!0);a.isEnabled()&&this.setFocusable(a,a.isVisible())};goog.ui.ControlRenderer.prototype.setAriaRole=function(a,b){var c=b||this.getAriaRole();if(c){goog.asserts.assert(a,"The element passed as a first parameter cannot be null.");var d=goog.a11y.aria.getRole(a);c!=d&&goog.a11y.aria.setRole(a,c)}};
 goog.ui.ControlRenderer.prototype.setAriaStates=function(a,b){goog.asserts.assert(a);goog.asserts.assert(b);var c=a.getAriaLabel();goog.isDefAndNotNull(c)&&this.setAriaLabel(b,c);a.isVisible()||goog.a11y.aria.setState(b,goog.a11y.aria.State.HIDDEN,!a.isVisible());a.isEnabled()||this.updateAriaState(b,goog.ui.Component.State.DISABLED,!a.isEnabled());a.isSupportedState(goog.ui.Component.State.SELECTED)&&this.updateAriaState(b,goog.ui.Component.State.SELECTED,a.isSelected());a.isSupportedState(goog.ui.Component.State.CHECKED)&&
 this.updateAriaState(b,goog.ui.Component.State.CHECKED,a.isChecked());a.isSupportedState(goog.ui.Component.State.OPENED)&&this.updateAriaState(b,goog.ui.Component.State.OPENED,a.isOpen())};goog.ui.ControlRenderer.prototype.setAriaLabel=function(a,b){goog.a11y.aria.setLabel(a,b)};goog.ui.ControlRenderer.prototype.setAllowTextSelection=function(a,b){goog.style.setUnselectable(a,!b,!goog.userAgent.IE&&!goog.userAgent.OPERA)};
@@ -742,7 +742,7 @@ goog.iter.equals=function(a,b,c){a=goog.iter.zipLongest({},a,b);var d=c||goog.ar
 goog.iter.product=function(a){if(goog.array.some(arguments,function(a){return!a.length})||!arguments.length)return new goog.iter.Iterator;var b=new goog.iter.Iterator,c=arguments,d=goog.array.repeat(0,c.length);b.next=function(){if(d){for(var a=goog.array.map(d,function(a,b){return c[b][a]}),b=d.length-1;0<=b;b--){goog.asserts.assert(d);if(d[b]<c[b].length-1){d[b]++;break}if(0==b){d=null;break}d[b]=0}return a}throw goog.iter.StopIteration;};return b};
 goog.iter.cycle=function(a){var b=goog.iter.toIterator(a),c=[],d=0;a=new goog.iter.Iterator;var e=!1;a.next=function(){var a=null;if(!e)try{return a=b.next(),c.push(a),a}catch(g){if(g!=goog.iter.StopIteration||goog.array.isEmpty(c))throw g;e=!0}a=c[d];d=(d+1)%c.length;return a};return a};goog.iter.count=function(a,b){var c=a||0,d=goog.isDef(b)?b:1,e=new goog.iter.Iterator;e.next=function(){var a=c;c+=d;return a};return e};
 goog.iter.repeat=function(a){var b=new goog.iter.Iterator;b.next=goog.functions.constant(a);return b};goog.iter.accumulate=function(a){var b=goog.iter.toIterator(a),c=0;a=new goog.iter.Iterator;a.next=function(){return c+=b.next()};return a};goog.iter.zip=function(a){var b=arguments,c=new goog.iter.Iterator;if(0<b.length){var d=goog.array.map(b,goog.iter.toIterator);c.next=function(){return goog.array.map(d,function(a){return a.next()})}}return c};
-goog.iter.zipLongest=function(a,b){var c=goog.array.slice(arguments,1),d=new goog.iter.Iterator;if(0<c.length){var e=goog.array.map(c,goog.iter.toIterator);d.next=function(){var b=!1,c=goog.array.map(e,function(c){try{var d=c.next();b=!0}catch(n){if(n!==goog.iter.StopIteration)throw n;d=a}return d});if(!b)throw goog.iter.StopIteration;return c}}return d};goog.iter.compress=function(a,b){var c=goog.iter.toIterator(b);return goog.iter.filter(a,function(){return!!c.next()})};
+goog.iter.zipLongest=function(a,b){var c=goog.array.slice(arguments,1),d=new goog.iter.Iterator;if(0<c.length){var e=goog.array.map(c,goog.iter.toIterator);d.next=function(){var b=!1,c=goog.array.map(e,function(c){try{var d=c.next();b=!0}catch(m){if(m!==goog.iter.StopIteration)throw m;d=a}return d});if(!b)throw goog.iter.StopIteration;return c}}return d};goog.iter.compress=function(a,b){var c=goog.iter.toIterator(b);return goog.iter.filter(a,function(){return!!c.next()})};
 goog.iter.GroupByIterator_=function(a,b){this.iterator=goog.iter.toIterator(a);this.keyFunc=b||goog.functions.identity};goog.inherits(goog.iter.GroupByIterator_,goog.iter.Iterator);goog.iter.GroupByIterator_.prototype.next=function(){for(;this.currentKey==this.targetKey;)this.currentValue=this.iterator.next(),this.currentKey=this.keyFunc(this.currentValue);this.targetKey=this.currentKey;return[this.currentKey,this.groupItems_(this.targetKey)]};
 goog.iter.GroupByIterator_.prototype.groupItems_=function(a){for(var b=[];this.currentKey==a;){b.push(this.currentValue);try{this.currentValue=this.iterator.next()}catch(c){if(c!==goog.iter.StopIteration)throw c;break}this.currentKey=this.keyFunc(this.currentValue)}return b};goog.iter.groupBy=function(a,b){return new goog.iter.GroupByIterator_(a,b)};
 goog.iter.starMap=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;a.next=function(){var a=goog.iter.toArray(d.next());return b.apply(c,goog.array.concat(a,void 0,d))};return a};
@@ -900,7 +900,8 @@ goog.ui.tree.TreeControl.prototype.handleMouseEvent_=function(a){goog.log.fine(t
 goog.ui.tree.TreeControl.prototype.handleKeyEvent=function(a){var b;(b=this.typeAhead_.handleNavigation(a)||this.selectedItem_&&this.selectedItem_.onKeyDown(a)||this.typeAhead_.handleTypeAheadChar(a))&&a.preventDefault();return b};goog.ui.tree.TreeControl.prototype.getNodeFromEvent_=function(a){for(var b=a.target;null!=b;){if(a=goog.ui.tree.BaseNode.allNodes[b.id])return a;if(b==this.getElement())break;b=b.parentNode}return null};
 goog.ui.tree.TreeControl.prototype.createNode=function(a){return new goog.ui.tree.TreeNode(a||goog.html.SafeHtml.EMPTY,this.getConfig(),this.getDomHelper())};goog.ui.tree.TreeControl.prototype.setNode=function(a){this.typeAhead_.setNodeInMap(a)};goog.ui.tree.TreeControl.prototype.removeNode=function(a){this.typeAhead_.removeNodeFromMap(a)};goog.ui.tree.TreeControl.prototype.clearTypeAhead=function(){this.typeAhead_.clear()};goog.ui.tree.TreeControl.defaultConfig=goog.ui.tree.BaseNode.defaultConfig;
 var Blockly={};Blockly.Blocks=Object(null);
-Blockly.Touch={};Blockly.Touch.touchIdentifier_=null;Blockly.Touch.TOUCH_MAP={};window.PointerEvent?Blockly.Touch.TOUCH_MAP={mousedown:["pointerdown"],mousemove:["pointermove"],mouseup:["pointerup","pointercancel"]}:goog.events.BrowserFeature.TOUCH_ENABLED&&(Blockly.Touch.TOUCH_MAP={mousedown:["touchstart"],mousemove:["touchmove"],mouseup:["touchend","touchcancel"]});Blockly.longPid_=0;
+Blockly.Touch={};Blockly.Touch.touchIdentifier_=null;Blockly.Touch.TOUCH_MAP={};
+window&&window.PointerEvent?Blockly.Touch.TOUCH_MAP={mousedown:["pointerdown"],mouseenter:["pointerenter"],mouseleave:["pointerleave"],mousemove:["pointermove"],mouseout:["pointerout"],mouseover:["pointerover"],mouseup:["pointerup","pointercancel"],touchend:["pointerup"],touchcancel:["pointercancel"]}:goog.events.BrowserFeature.TOUCH_ENABLED&&(Blockly.Touch.TOUCH_MAP={mousedown:["touchstart"],mousemove:["touchmove"],mouseup:["touchend","touchcancel"]});Blockly.longPid_=0;
 Blockly.longStart_=function(a,b){Blockly.longStop_();a.changedTouches&&1!=a.changedTouches.length||(Blockly.longPid_=setTimeout(function(){a.changedTouches&&(a.button=2,a.clientX=a.changedTouches[0].clientX,a.clientY=a.changedTouches[0].clientY);b&&b.handleRightClick(a)},Blockly.LONGPRESS))};Blockly.longStop_=function(){Blockly.longPid_&&(clearTimeout(Blockly.longPid_),Blockly.longPid_=0)};Blockly.Touch.clearTouchIdentifier=function(){Blockly.Touch.touchIdentifier_=null};
 Blockly.Touch.shouldHandleEvent=function(a){return!Blockly.Touch.isMouseOrTouchEvent(a)||Blockly.Touch.checkTouchIdentifier(a)};Blockly.Touch.getTouchIdentifierFromEvent=function(a){return void 0!=a.pointerId?a.pointerId:a.changedTouches&&a.changedTouches[0]&&void 0!=a.changedTouches[0].identifier&&null!=a.changedTouches[0].identifier?a.changedTouches[0].identifier:"mouse"};
 Blockly.Touch.checkTouchIdentifier=function(a){var b=Blockly.Touch.getTouchIdentifierFromEvent(a);return void 0!=Blockly.Touch.touchIdentifier_&&null!=Blockly.Touch.touchIdentifier_?Blockly.Touch.touchIdentifier_==b:"mousedown"==a.type||"touchstart"==a.type||"pointerdown"==a.type?(Blockly.Touch.touchIdentifier_=b,!0):!1};Blockly.Touch.setClientFromTouch=function(a){if(goog.string.startsWith(a.type,"touch")){var b=a.changedTouches[0];a.clientX=b.clientX;a.clientY=b.clientY}};
@@ -944,16 +945,17 @@ Blockly.Bubble.unbindDragEvents_=function(){Blockly.Bubble.onMouseUpWrapper_&&(B
 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.utils.createSvgElement("g",{},null);var c={filter:"url(#"+this.workspace_.options.embossFilterId+")"};-1!=goog.userAgent.getUserAgentString().indexOf("JavaFX")&&(c={});c=Blockly.utils.createSvgElement("g",c,this.bubbleGroup_);this.bubbleArrow_=Blockly.utils.createSvgElement("path",{},c);this.bubbleBack_=Blockly.utils.createSvgElement("rect",{"class":"blocklyDraggable",x:0,y:0,rx:Blockly.Bubble.BORDER_WIDTH,ry:Blockly.Bubble.BORDER_WIDTH},
 c);b?(this.resizeGroup_=Blockly.utils.createSvgElement("g",{"class":this.workspace_.RTL?"blocklyResizeSW":"blocklyResizeSE"},this.bubbleGroup_),c=2*Blockly.Bubble.BORDER_WIDTH,Blockly.utils.createSvgElement("polygon",{points:"0,x x,x x,0".replace(/x/g,c.toString())},this.resizeGroup_),Blockly.utils.createSvgElement("line",{"class":"blocklyResizeLine",x1:c/3,y1:c-1,x2:c-1,y2:c/3},this.resizeGroup_),Blockly.utils.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.getSvgRoot=function(){return this.bubbleGroup_};Blockly.Bubble.prototype.bubbleMouseDown_=function(a){var b=this.workspace_.getGesture(a);b&&b.handleBubbleStart(a,this)};
+this.resizeGroup_)):this.resizeGroup_=null;this.bubbleGroup_.appendChild(a);return this.bubbleGroup_};Blockly.Bubble.prototype.getSvgRoot=function(){return this.bubbleGroup_};Blockly.Bubble.prototype.setSvgId=function(a){this.bubbleGroup_.dataset&&(this.bubbleGroup_.dataset.blockId=a)};Blockly.Bubble.prototype.bubbleMouseDown_=function(a){var b=this.workspace_.getGesture(a);b&&b.handleBubbleStart(a,this)};
 Blockly.Bubble.prototype.resizeMouseDown_=function(a){this.promote_();Blockly.Bubble.unbindDragEvents_();Blockly.utils.isRightButton(a)||(this.workspace_.startDrag(a,new goog.math.Coordinate(this.workspace_.RTL?-this.width_:this.width_,this.height_)),Blockly.Bubble.onMouseUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",this,Blockly.Bubble.bubbleMouseUp_),Blockly.Bubble.onMouseMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",this,this.resizeMouseMove_),Blockly.hideChaff());
-a.stopPropagation()};Blockly.Bubble.prototype.resizeMouseMove_=function(a){this.autoLayout_=!1;a=this.workspace_.moveDrag(a);this.setBubbleSize(this.workspace_.RTL?-a.x:a.x,a.y);this.workspace_.RTL&&this.positionBubble_()};Blockly.Bubble.prototype.registerResizeEvent=function(a){this.resizeCallback_=a};Blockly.Bubble.prototype.promote_=function(){this.bubbleGroup_.parentNode.appendChild(this.bubbleGroup_)};Blockly.Bubble.prototype.setAnchorLocation=function(a){this.anchorXY_=a;this.rendered_&&this.positionBubble_()};
+a.stopPropagation()};Blockly.Bubble.prototype.resizeMouseMove_=function(a){this.autoLayout_=!1;a=this.workspace_.moveDrag(a);this.setBubbleSize(this.workspace_.RTL?-a.x:a.x,a.y);this.workspace_.RTL&&this.positionBubble_()};Blockly.Bubble.prototype.registerResizeEvent=function(a){this.resizeCallback_=a};Blockly.Bubble.prototype.promote_=function(){var a=this.bubbleGroup_.parentNode;return a.lastChild!==this.bubbleGroup_?(a.appendChild(this.bubbleGroup_),!0):!1};
+Blockly.Bubble.prototype.setAnchorLocation=function(a){this.anchorXY_=a;this.rendered_&&this.positionBubble_()};
 Blockly.Bubble.prototype.layoutBubble_=function(){var a=-this.width_/4,b=-this.height_-Blockly.BlockSvg.MIN_BLOCK_Y,c=this.workspace_.getMetrics();c.viewWidth/=this.workspace_.scale;c.viewLeft/=this.workspace_.scale;var d=this.anchorXY_.x;this.workspace_.RTL?d-c.viewLeft-a-this.width_<Blockly.Scrollbar.scrollbarThickness?a=d-c.viewLeft-this.width_-Blockly.Scrollbar.scrollbarThickness:d-c.viewLeft-a>c.viewWidth&&(a=d-c.viewLeft-c.viewWidth):d+a<c.viewLeft?a=c.viewLeft-d:c.viewLeft+c.viewWidth<d+a+
 this.width_+Blockly.BlockSvg.SEP_SPACE_X+Blockly.Scrollbar.scrollbarThickness&&(a=c.viewLeft+c.viewWidth-d-this.width_-Blockly.Scrollbar.scrollbarThickness);this.anchorXY_.y+b<c.viewTop&&(b=this.shape_.getBBox().height);this.relativeLeft_=a;this.relativeTop_=b};Blockly.Bubble.prototype.positionBubble_=function(){var a=this.anchorXY_.x;a=this.workspace_.RTL?a-(this.relativeLeft_+this.width_):a+this.relativeLeft_;this.moveTo(a,this.relativeTop_+this.anchorXY_.y)};
 Blockly.Bubble.prototype.moveTo=function(a,b){this.bubbleGroup_.setAttribute("transform","translate("+a+","+b+")")};Blockly.Bubble.prototype.getBubbleSize=function(){return{width:this.width_,height:this.height_}};
 Blockly.Bubble.prototype.setBubbleSize=function(a,b){var c=2*Blockly.Bubble.BORDER_WIDTH;a=Math.max(a,c+45);b=Math.max(b,c+20);this.width_=a;this.height_=b;this.bubbleBack_.setAttribute("width",a);this.bubbleBack_.setAttribute("height",b);this.resizeGroup_&&(this.workspace_.RTL?this.resizeGroup_.setAttribute("transform","translate("+2*Blockly.Bubble.BORDER_WIDTH+","+(b-c)+") scale(-1 1)"):this.resizeGroup_.setAttribute("transform","translate("+(a-c)+","+(b-c)+")"));this.rendered_&&(this.autoLayout_&&
 this.layoutBubble_(),this.positionBubble_(),this.renderArrow_());this.resizeCallback_&&this.resizeCallback_()};
-Blockly.Bubble.prototype.renderArrow_=function(){var a=[],b=this.width_/2,c=this.height_/2,d=-this.relativeLeft_,e=-this.relativeTop_;if(b==d&&c==e)a.push("M "+b+","+c);else{e-=c;d-=b;this.workspace_.RTL&&(d*=-1);var f=Math.sqrt(e*e+d*d),g=Math.acos(d/f);0>e&&(g=2*Math.PI-g);var h=g+Math.PI/2;h>2*Math.PI&&(h-=2*Math.PI);var k=Math.sin(h),n=Math.cos(h),p=this.getBubbleSize();h=(p.width+p.height)/Blockly.Bubble.ARROW_THICKNESS;h=Math.min(h,p.width,p.height)/4;p=1-Blockly.Bubble.ANCHOR_RADIUS/f;d=b+
-p*d;e=c+p*e;p=b+h*n;var l=c+h*k;b-=h*n;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+","+l);a.push("C"+(p+f)+","+(l+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.renderArrow_=function(){var a=[],b=this.width_/2,c=this.height_/2,d=-this.relativeLeft_,e=-this.relativeTop_;if(b==d&&c==e)a.push("M "+b+","+c);else{e-=c;d-=b;this.workspace_.RTL&&(d*=-1);var f=Math.sqrt(e*e+d*d),g=Math.acos(d/f);0>e&&(g=2*Math.PI-g);var h=g+Math.PI/2;h>2*Math.PI&&(h-=2*Math.PI);var k=Math.sin(h),m=Math.cos(h),p=this.getBubbleSize();h=(p.width+p.height)/Blockly.Bubble.ARROW_THICKNESS;h=Math.min(h,p.width,p.height)/4;p=1-Blockly.Bubble.ANCHOR_RADIUS/f;d=b+
+p*d;e=c+p*e;p=b+h*m;var l=c+h*k;b-=h*m;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+","+l);a.push("C"+(p+f)+","+(l+g)+" "+d+","+e+" "+d+","+e);a.push("C"+d+","+e+" "+(b+f)+","+(c+g)+" "+b+","+c)}a.push("z");this.bubbleArrow_.setAttribute("d",a.join(" "))};Blockly.Bubble.prototype.setColour=function(a){this.bubbleBack_.setAttribute("fill",a);this.bubbleArrow_.setAttribute("fill",a)};
 Blockly.Bubble.prototype.dispose=function(){Blockly.Bubble.unbindDragEvents_();goog.dom.removeNode(this.bubbleGroup_);this.shape_=this.content_=this.workspace_=this.resizeGroup_=this.bubbleBack_=this.bubbleArrow_=this.bubbleGroup_=null};Blockly.Bubble.prototype.moveDuringDrag=function(a,b){a?a.translateSurface(b.x,b.y):this.moveTo(b.x,b.y);this.relativeLeft_=this.workspace_.RTL?this.anchorXY_.x-b.x-this.width_:b.x-this.anchorXY_.x;this.relativeTop_=b.y-this.anchorXY_.y;this.renderArrow_()};
 Blockly.Bubble.prototype.getRelativeToSurfaceXY=function(){return new goog.math.Coordinate(this.anchorXY_.x+this.relativeLeft_,this.anchorXY_.y+this.relativeTop_)};Blockly.Bubble.prototype.setAutoLayout=function(a){this.autoLayout_=a};Blockly.Events.Change=function(a,b,c,d,e){a&&(Blockly.Events.Change.superClass_.constructor.call(this,a),this.element=b,this.name=c,this.oldValue=d,this.newValue=e)};goog.inherits(Blockly.Events.Change,Blockly.Events.Abstract);Blockly.Events.BlockChange=Blockly.Events.Change;Blockly.Events.Change.prototype.type=Blockly.Events.CHANGE;
 Blockly.Events.Change.prototype.toJson=function(){var a=Blockly.Events.Change.superClass_.toJson.call(this);a.element=this.element;this.name&&(a.name=this.name);a.newValue=this.newValue;return a};Blockly.Events.Change.prototype.fromJson=function(a){Blockly.Events.Change.superClass_.fromJson.call(this,a);this.element=a.element;this.name=a.name;this.newValue=a.newValue};Blockly.Events.Change.prototype.isNull=function(){return this.oldValue==this.newValue};
@@ -967,10 +969,10 @@ Blockly.Icon.prototype.setIconLocation=function(a){this.iconXY_=a;this.isVisible
 Blockly.Comment=function(a){Blockly.Comment.superClass_.constructor.call(this,a);this.createIcon()};goog.inherits(Blockly.Comment,Blockly.Icon);Blockly.Comment.prototype.text_="";Blockly.Comment.prototype.width_=160;Blockly.Comment.prototype.height_=80;
 Blockly.Comment.prototype.drawIcon_=function(a){Blockly.utils.createSvgElement("circle",{"class":"blocklyIconShape",r:"8",cx:"8",cy:"8"},a);Blockly.utils.createSvgElement("path",{"class":"blocklyIconSymbol",d:"m6.8,10h2c0.003,-0.617 0.271,-0.962 0.633,-1.266 2.875,-2.4050.607,-5.534 -3.765,-3.874v1.7c3.12,-1.657 3.698,0.118 2.336,1.25-1.201,0.998 -1.201,1.528 -1.204,2.19z"},a);Blockly.utils.createSvgElement("rect",{"class":"blocklyIconSymbol",x:"6.8",y:"10.78",height:"2",width:"2"},a)};
 Blockly.Comment.prototype.createEditor_=function(){this.foreignObject_=Blockly.utils.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";var b=document.createElementNS(Blockly.HTML_NS,"textarea");b.className="blocklyCommentTextarea";b.setAttribute("dir",this.block_.RTL?"RTL":"LTR");a.appendChild(b);this.textarea_=b;this.foreignObject_.appendChild(a);
-Blockly.bindEventWithChecks_(b,"mouseup",this,this.textareaFocus_);Blockly.bindEventWithChecks_(b,"wheel",this,function(a){a.stopPropagation()});Blockly.bindEventWithChecks_(b,"change",this,function(a){this.text_!=b.value&&(Blockly.Events.fire(new Blockly.Events.BlockChange(this.block_,"comment",null,this.text_,b.value)),this.text_=b.value)});setTimeout(function(){b.focus()},0);return this.foreignObject_};
+Blockly.bindEventWithChecks_(b,"mouseup",this,this.textareaFocus_,!0,!0);Blockly.bindEventWithChecks_(b,"wheel",this,function(a){a.stopPropagation()});Blockly.bindEventWithChecks_(b,"change",this,function(a){this.text_!=b.value&&(Blockly.Events.fire(new Blockly.Events.BlockChange(this.block_,"comment",null,this.text_,b.value)),this.text_=b.value)});setTimeout(function(){b.focus()},0);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(){if(this.isVisible()){var a=this.bubble_.getBubbleSize(),b=2*Blockly.Bubble.BORDER_WIDTH;this.foreignObject_.setAttribute("width",a.width-b);this.foreignObject_.setAttribute("height",a.height-b);this.textarea_.style.width=a.width-b-4+"px";this.textarea_.style.height=a.height-b-4+"px"}};
-Blockly.Comment.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"commentOpen",!a,a)),!this.block_.isEditable()&&!this.textarea_||goog.userAgent.IE)Blockly.Warning.prototype.setVisible.call(this,a);else{var b=this.getText(),c=this.getBubbleSize();a?(this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconXY_,this.width_,this.height_),this.bubble_.registerResizeEvent(this.resizeBubble_.bind(this)),
-this.updateColour()):(this.bubble_.dispose(),this.foreignObject_=this.textarea_=this.bubble_=null);this.setText(b);this.setBubbleSize(c.width,c.height)}};Blockly.Comment.prototype.textareaFocus_=function(a){this.bubble_.promote_();this.textarea_.focus()};Blockly.Comment.prototype.getBubbleSize=function(){return this.isVisible()?this.bubble_.getBubbleSize():{width:this.width_,height:this.height_}};
+Blockly.Comment.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"commentOpen",!a,a)),!this.block_.isEditable()&&!this.textarea_||goog.userAgent.IE)Blockly.Warning.prototype.setVisible.call(this,a);else{var b=this.getText(),c=this.getBubbleSize();a?(this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconXY_,this.width_,this.height_),this.bubble_.setSvgId(this.block_.id),this.bubble_.registerResizeEvent(this.resizeBubble_.bind(this)),
+this.updateColour()):(this.bubble_.dispose(),this.foreignObject_=this.textarea_=this.bubble_=null);this.setText(b);this.setBubbleSize(c.width,c.height)}};Blockly.Comment.prototype.textareaFocus_=function(a){this.bubble_.promote_()&&this.textarea_.focus()};Blockly.Comment.prototype.getBubbleSize=function(){return this.isVisible()?this.bubble_.getBubbleSize():{width:this.width_,height:this.height_}};
 Blockly.Comment.prototype.setBubbleSize=function(a,b){this.textarea_?this.bubble_.setBubbleSize(a,b):(this.width_=a,this.height_=b)};Blockly.Comment.prototype.getText=function(){return this.textarea_?this.textarea_.value:this.text_};Blockly.Comment.prototype.setText=function(a){this.text_!=a&&(Blockly.Events.fire(new Blockly.Events.BlockChange(this.block_,"comment",null,this.text_,a)),this.text_=a);this.textarea_&&(this.textarea_.value=a)};
 Blockly.Comment.prototype.dispose=function(){Blockly.Events.isEnabled()&&this.setText("");this.block_.comment=null;Blockly.Icon.prototype.dispose.call(this)};Blockly.Events.Move=function(a){a&&(Blockly.Events.Move.superClass_.constructor.call(this,a),a=this.currentLocation_(),this.oldParentId=a.parentId,this.oldInputName=a.inputName,this.oldCoordinate=a.coordinate)};goog.inherits(Blockly.Events.Move,Blockly.Events.Abstract);Blockly.Events.BlockMove=Blockly.Events.Move;Blockly.Events.Move.prototype.type=Blockly.Events.MOVE;
 Blockly.Events.Move.prototype.toJson=function(){var a=Blockly.Events.Move.superClass_.toJson.call(this);this.newParentId&&(a.newParentId=this.newParentId);this.newInputName&&(a.newInputName=this.newInputName);this.newCoordinate&&(a.newCoordinate=Math.round(this.newCoordinate.x)+","+Math.round(this.newCoordinate.y));return a};
@@ -981,7 +983,7 @@ b.connection}else c.type==Blockly.PREVIOUS_STATEMENT&&(g=f.nextConnection);g?c.c
 Blockly.Connection.REASON_SHADOW_PARENT=6;Blockly.Connection.prototype.targetConnection=null;Blockly.Connection.prototype.check_=null;Blockly.Connection.prototype.shadowDom_=null;Blockly.Connection.prototype.x_=0;Blockly.Connection.prototype.y_=0;Blockly.Connection.prototype.inDB_=!1;Blockly.Connection.prototype.db_=null;Blockly.Connection.prototype.dbOpposite_=null;Blockly.Connection.prototype.hidden_=null;
 Blockly.Connection.prototype.connect_=function(a){var b=this,c=b.getSourceBlock(),d=a.getSourceBlock();a.isConnected()&&a.disconnect();if(b.isConnected()){var e=b.targetBlock(),f=b.getShadowDom();b.setShadowDom(null);if(e.isShadow())f=Blockly.Xml.blockToDom(e),e.dispose(),e=null;else if(b.type==Blockly.INPUT_VALUE){if(!e.outputConnection)throw"Orphan block does not have an output connection.";var g=Blockly.Connection.lastConnectionInRow_(d,e);g&&(e.outputConnection.connect(g),e=null)}else if(b.type==
 Blockly.NEXT_STATEMENT){if(!e.previousConnection)throw"Orphan block does not have a previous connection.";for(g=d;g.nextConnection;){var h=g.getNextBlock();if(h&&!h.isShadow())g=h;else{e.previousConnection.checkType_(g.nextConnection)&&(g.nextConnection.connect(e.previousConnection),e=null);break}}}if(e&&(b.disconnect(),Blockly.Events.recordUndo)){var k=Blockly.Events.getGroup();setTimeout(function(){e.workspace&&!e.getParent()&&(Blockly.Events.setGroup(k),e.outputConnection?e.outputConnection.bumpAwayFrom_(b):
-e.previousConnection&&e.previousConnection.bumpAwayFrom_(b),Blockly.Events.setGroup(!1))},Blockly.BUMP_DELAY)}b.setShadowDom(f)}var n;Blockly.Events.isEnabled()&&(n=new Blockly.Events.BlockMove(d));Blockly.Connection.connectReciprocally_(b,a);d.setParent(c);n&&(n.recordNew(),Blockly.Events.fire(n))};Blockly.Connection.prototype.dispose=function(){if(this.isConnected())throw"Disconnect connection before disposing of it.";this.inDB_&&this.db_.removeConnection_(this);this.dbOpposite_=this.db_=null};
+e.previousConnection&&e.previousConnection.bumpAwayFrom_(b),Blockly.Events.setGroup(!1))},Blockly.BUMP_DELAY)}b.setShadowDom(f)}var m;Blockly.Events.isEnabled()&&(m=new Blockly.Events.BlockMove(d));Blockly.Connection.connectReciprocally_(b,a);d.setParent(c);m&&(m.recordNew(),Blockly.Events.fire(m))};Blockly.Connection.prototype.dispose=function(){if(this.isConnected())throw"Disconnect connection before disposing of it.";this.inDB_&&this.db_.removeConnection_(this);this.dbOpposite_=this.db_=null};
 Blockly.Connection.prototype.getSourceBlock=function(){return this.sourceBlock_};Blockly.Connection.prototype.isSuperior=function(){return this.type==Blockly.INPUT_VALUE||this.type==Blockly.NEXT_STATEMENT};Blockly.Connection.prototype.isConnected=function(){return!!this.targetConnection};
 Blockly.Connection.prototype.canConnectWithReason_=function(a){if(!a)return Blockly.Connection.REASON_TARGET_NULL;if(this.isSuperior())var b=this.sourceBlock_,c=a.getSourceBlock();else c=this.sourceBlock_,b=a.getSourceBlock();return b&&b==c?Blockly.Connection.REASON_SELF_CONNECTION:a.type!=Blockly.OPPOSITE_TYPE[this.type]?Blockly.Connection.REASON_WRONG_TYPE:b&&c&&b.workspace!==c.workspace?Blockly.Connection.REASON_DIFFERENT_WORKSPACES:this.checkType_(a)?b.isShadow()&&!c.isShadow()?Blockly.Connection.REASON_SHADOW_PARENT:
 Blockly.Connection.CAN_CONNECT:Blockly.Connection.REASON_CHECKS_FAILED};
@@ -1003,7 +1005,7 @@ Blockly.Events.Delete.prototype.toJson=function(){var a=Blockly.Events.Delete.su
 Blockly.Events.Delete.prototype.run=function(a){var b=this.getEventWorkspace_();if(a){a=0;for(var c;c=this.ids[a];a++){var d=b.getBlockById(c);d?d.dispose(!1,!1):c==this.blockId&&console.warn("Can't delete non-existent block: "+c)}}else a=goog.dom.createDom("xml"),a.appendChild(this.oldXml),Blockly.Xml.domToWorkspace(a,b)};Blockly.ConnectionDB=function(){};Blockly.ConnectionDB.prototype=[];Blockly.ConnectionDB.constructor=Blockly.ConnectionDB;Blockly.ConnectionDB.prototype.addConnection=function(a){if(a.inDB_)throw"Connection already in database.";if(!a.getSourceBlock().isInFlyout){var b=this.findPositionForConnection_(a);this.splice(b,0,a);a.inDB_=!0}};
 Blockly.ConnectionDB.prototype.findConnection=function(a){if(!this.length)return-1;var b=this.findPositionForConnection_(a);if(b>=this.length)return-1;for(var c=a.y_,d=b;0<=d&&this[d].y_==c;){if(this[d]==a)return d;d--}for(;b<this.length&&this[b].y_==c;){if(this[b]==a)return b;b++}return-1};
 Blockly.ConnectionDB.prototype.findPositionForConnection_=function(a){if(!this.length)return 0;for(var b=0,c=this.length;b<c;){var d=Math.floor((b+c)/2);if(this[d].y_<a.y_)b=d+1;else if(this[d].y_>a.y_)c=d;else{b=d;break}}return b};Blockly.ConnectionDB.prototype.removeConnection_=function(a){if(!a.inDB_)throw"Connection not in database.";var b=this.findConnection(a);if(-1==b)throw"Unable to find connection in connectionDB.";a.inDB_=!1;this.splice(b,1)};
-Blockly.ConnectionDB.prototype.getNeighbours=function(a,b){function c(a){var c=e-d[a].x_,g=f-d[a].y_;Math.sqrt(c*c+g*g)<=b&&n.push(d[a]);return g<b}for(var d=this,e=a.x_,f=a.y_,g=0,h=d.length-2,k=h;g<k;)d[k].y_<f?g=k:h=k,k=Math.floor((g+h)/2);var n=[];h=g=k;if(d.length){for(;0<=g&&c(g);)g--;do h++;while(h<d.length&&c(h))}return n};Blockly.ConnectionDB.prototype.isInYRange_=function(a,b,c){return Math.abs(this[a].y_-b)<=c};
+Blockly.ConnectionDB.prototype.getNeighbours=function(a,b){function c(a){var c=e-d[a].x_,g=f-d[a].y_;Math.sqrt(c*c+g*g)<=b&&m.push(d[a]);return g<b}for(var d=this,e=a.x_,f=a.y_,g=0,h=d.length-2,k=h;g<k;)d[k].y_<f?g=k:h=k,k=Math.floor((g+h)/2);var m=[];h=g=k;if(d.length){for(;0<=g&&c(g);)g--;do h++;while(h<d.length&&c(h))}return m};Blockly.ConnectionDB.prototype.isInYRange_=function(a,b,c){return Math.abs(this[a].y_-b)<=c};
 Blockly.ConnectionDB.prototype.searchForClosest=function(a,b,c){if(!this.length)return{connection:null,radius:b};var d=a.y_,e=a.x_;a.x_=e+c.x;a.y_=d+c.y;var f=this.findPositionForConnection_(a);c=null;for(var g=b,h,k=f-1;0<=k&&this.isInYRange_(k,a.y_,b);)h=this[k],a.isConnectionAllowed(h,g)&&(c=h,g=h.distanceFrom(a)),k--;for(;f<this.length&&this.isInYRange_(f,a.y_,b);)h=this[f],a.isConnectionAllowed(h,g)&&(c=h,g=h.distanceFrom(a)),f++;a.x_=e;a.y_=d;return{connection:c,radius:g}};
 Blockly.ConnectionDB.init=function(a){var b=[];b[Blockly.INPUT_VALUE]=new Blockly.ConnectionDB;b[Blockly.OUTPUT_VALUE]=new Blockly.ConnectionDB;b[Blockly.NEXT_STATEMENT]=new Blockly.ConnectionDB;b[Blockly.PREVIOUS_STATEMENT]=new Blockly.ConnectionDB;a.connectionDBList=b};Blockly.constants={};Blockly.DRAG_RADIUS=5;Blockly.FLYOUT_DRAG_RADIUS=10;Blockly.SNAP_RADIUS=20;Blockly.BUMP_DELAY=250;Blockly.COLLAPSE_CHARS=30;Blockly.LONGPRESS=750;Blockly.SOUND_LIMIT=100;Blockly.DRAG_STACK=!0;Blockly.HSV_SATURATION=.45;Blockly.HSV_VALUE=.65;Blockly.SPRITE={width:96,height:124,url:"sprites.png"};Blockly.SVG_NS="http://www.w3.org/2000/svg";Blockly.HTML_NS="http://www.w3.org/1999/xhtml";Blockly.INPUT_VALUE=1;Blockly.OUTPUT_VALUE=2;Blockly.NEXT_STATEMENT=3;
 Blockly.PREVIOUS_STATEMENT=4;Blockly.DUMMY_INPUT=5;Blockly.ALIGN_LEFT=-1;Blockly.ALIGN_CENTRE=0;Blockly.ALIGN_RIGHT=1;Blockly.DRAG_NONE=0;Blockly.DRAG_STICKY=1;Blockly.DRAG_BEGIN=1;Blockly.DRAG_FREE=2;Blockly.OPPOSITE_TYPE=[];Blockly.OPPOSITE_TYPE[Blockly.INPUT_VALUE]=Blockly.OUTPUT_VALUE;Blockly.OPPOSITE_TYPE[Blockly.OUTPUT_VALUE]=Blockly.INPUT_VALUE;Blockly.OPPOSITE_TYPE[Blockly.NEXT_STATEMENT]=Blockly.PREVIOUS_STATEMENT;Blockly.OPPOSITE_TYPE[Blockly.PREVIOUS_STATEMENT]=Blockly.NEXT_STATEMENT;
@@ -1026,10 +1028,10 @@ Blockly.DraggedConnectionManager.prototype.update=function(a,b){var c=this.close
 Blockly.DraggedConnectionManager.prototype.removeHighlighting_=function(){this.closestConnection_&&this.closestConnection_.unhighlight()};Blockly.DraggedConnectionManager.prototype.addHighlighting_=function(){this.closestConnection_&&this.closestConnection_.highlight()};Blockly.DraggedConnectionManager.prototype.initAvailableConnections_=function(){var a=this.topBlock_.getConnections_(!1),b=this.topBlock_.lastConnectionInStack_();b&&b!=this.topBlock_.nextConnection&&a.push(b);return a};
 Blockly.DraggedConnectionManager.prototype.updateClosest_=function(a){var b=this.closestConnection_;this.localConnection_=this.closestConnection_=null;this.radiusConnection_=Blockly.SNAP_RADIUS;for(var c=0;c<this.availableConnections_.length;c++){var d=this.availableConnections_[c],e=d.closest(this.radiusConnection_,a);e.connection&&(this.closestConnection_=e.connection,this.localConnection_=d,this.radiusConnection_=e.radius)}return b!=this.closestConnection_};Blockly.BlockDragger=function(a,b){this.draggingBlock_=a;this.workspace_=b;this.draggedConnectionManager_=new Blockly.DraggedConnectionManager(this.draggingBlock_);this.deleteArea_=null;this.wouldDeleteBlock_=!1;this.startXY_=this.draggingBlock_.getRelativeToSurfaceXY();this.dragIconData_=Blockly.BlockDragger.initIconData_(a)};
 Blockly.BlockDragger.prototype.dispose=function(){this.startWorkspace_=this.workspace_=this.draggingBlock_=null;this.dragIconData_.length=0;this.draggedConnectionManager_&&(this.draggedConnectionManager_.dispose(),this.draggedConnectionManager_=null)};Blockly.BlockDragger.initIconData_=function(a){var b=[];a=a.getDescendants();for(var c=0,d;d=a[c];c++){d=d.getIcons();for(var e=0;e<d.length;e++){var f={location:d[e].getIconLocation(),icon:d[e]};b.push(f)}}return b};
-Blockly.BlockDragger.prototype.startBlockDrag=function(a){Blockly.Events.getGroup()||Blockly.Events.setGroup(!0);this.workspace_.setResizesEnabled(!1);Blockly.BlockSvg.disconnectUiStop_();this.draggingBlock_.getParent()&&(this.draggingBlock_.unplug(),a=this.pixelsToWorkspaceUnits_(a),a=goog.math.Coordinate.sum(this.startXY_,a),this.draggingBlock_.translate(a.x,a.y),this.draggingBlock_.disconnectUiEffect());this.draggingBlock_.setDragging(!0);this.draggingBlock_.moveToDragSurface_();this.workspace_.toolbox_&&
-(a=this.draggingBlock_.isDeletable()?"blocklyToolboxDelete":"blocklyToolboxGrab",this.workspace_.toolbox_.addStyle(a))};Blockly.BlockDragger.prototype.dragBlock=function(a,b){var c=this.pixelsToWorkspaceUnits_(b),d=goog.math.Coordinate.sum(this.startXY_,c);this.draggingBlock_.moveDuringDrag(d);this.dragIcons_(c);this.deleteArea_=this.workspace_.isDeleteArea(a);this.draggedConnectionManager_.update(c,this.deleteArea_);this.updateCursorDuringBlockDrag_()};
+Blockly.BlockDragger.prototype.startBlockDrag=function(a){Blockly.Events.getGroup()||Blockly.Events.setGroup(!0);this.workspace_.setResizesEnabled(!1);Blockly.BlockSvg.disconnectUiStop_();this.draggingBlock_.getParent()&&(this.draggingBlock_.unplug(),a=this.pixelsToWorkspaceUnits_(a),a=goog.math.Coordinate.sum(this.startXY_,a),this.draggingBlock_.translate(a.x,a.y),this.draggingBlock_.disconnectUiEffect());this.draggingBlock_.setDragging(!0);this.draggingBlock_.moveToDragSurface_();if(a=this.workspace_.getToolbox()){var b=
+this.draggingBlock_.isDeletable()?"blocklyToolboxDelete":"blocklyToolboxGrab";a.addStyle(b)}};Blockly.BlockDragger.prototype.dragBlock=function(a,b){var c=this.pixelsToWorkspaceUnits_(b),d=goog.math.Coordinate.sum(this.startXY_,c);this.draggingBlock_.moveDuringDrag(d);this.dragIcons_(c);this.deleteArea_=this.workspace_.isDeleteArea(a);this.draggedConnectionManager_.update(c,this.deleteArea_);this.updateCursorDuringBlockDrag_()};
 Blockly.BlockDragger.prototype.endBlockDrag=function(a,b){this.dragBlock(a,b);this.dragIconData_=[];Blockly.BlockSvg.disconnectUiStop_();var c=this.pixelsToWorkspaceUnits_(b),d=goog.math.Coordinate.sum(this.startXY_,c);this.draggingBlock_.moveOffDragSurface_(d);this.maybeDeleteBlock_()||(this.draggingBlock_.moveConnections_(c.x,c.y),this.draggingBlock_.setDragging(!1),this.draggedConnectionManager_.applyConnections(),this.draggingBlock_.render(),this.fireMoveEvent_(),this.draggingBlock_.scheduleSnapAndBump());
-this.workspace_.setResizesEnabled(!0);this.workspace_.toolbox_&&(c=this.draggingBlock_.isDeletable()?"blocklyToolboxDelete":"blocklyToolboxGrab",this.workspace_.toolbox_.removeStyle(c));Blockly.Events.setGroup(!1)};Blockly.BlockDragger.prototype.fireMoveEvent_=function(){var a=new Blockly.Events.BlockMove(this.draggingBlock_);a.oldCoordinate=this.startXY_;a.recordNew();Blockly.Events.fire(a)};
+this.workspace_.setResizesEnabled(!0);if(c=this.workspace_.getToolbox())d=this.draggingBlock_.isDeletable()?"blocklyToolboxDelete":"blocklyToolboxGrab",c.removeStyle(d);Blockly.Events.setGroup(!1)};Blockly.BlockDragger.prototype.fireMoveEvent_=function(){var a=new Blockly.Events.BlockMove(this.draggingBlock_);a.oldCoordinate=this.startXY_;a.recordNew();Blockly.Events.fire(a)};
 Blockly.BlockDragger.prototype.maybeDeleteBlock_=function(){var a=this.workspace_.trashcan;this.wouldDeleteBlock_?(a&&goog.Timer.callOnce(a.close,100,a),this.fireMoveEvent_(),this.draggingBlock_.dispose(!1,!0)):a&&a.close();return this.wouldDeleteBlock_};
 Blockly.BlockDragger.prototype.updateCursorDuringBlockDrag_=function(){this.wouldDeleteBlock_=this.draggedConnectionManager_.wouldDeleteBlock();var a=this.workspace_.trashcan;this.wouldDeleteBlock_?(this.draggingBlock_.setDeleteStyle(!0),this.deleteArea_==Blockly.DELETE_AREA_TRASH&&a&&a.setOpen_(!0)):(this.draggingBlock_.setDeleteStyle(!1),a&&a.setOpen_(!1))};
 Blockly.BlockDragger.prototype.pixelsToWorkspaceUnits_=function(a){a=new goog.math.Coordinate(a.x/this.workspace_.scale,a.y/this.workspace_.scale);this.workspace_.isMutator&&(a=a.scale(1/this.workspace_.options.parentWorkspace.scale));return a};Blockly.BlockDragger.prototype.dragIcons_=function(a){for(var b=0;b<this.dragIconData_.length;b++){var c=this.dragIconData_[b];c.icon.setIconLocation(goog.math.Coordinate.sum(c.location,a))}};Blockly.BubbleDragger=function(a,b){this.draggingBubble_=a;this.workspace_=b;this.startXY_=this.draggingBubble_.getRelativeToSurfaceXY();this.dragSurface_=Blockly.utils.is3dSupported()&&b.getBlockDragSurface()?b.getBlockDragSurface():null};Blockly.BubbleDragger.prototype.dispose=function(){this.dragSurface_=this.workspace_=this.draggingBubble_=null};
@@ -1056,7 +1058,7 @@ Blockly.Gesture.prototype.updateIsDragging_=function(){goog.asserts.assert(!this
 Blockly.Gesture.prototype.startDraggingBlock_=function(){this.blockDragger_=new Blockly.BlockDragger(this.targetBlock_,this.startWorkspace_);this.blockDragger_.startBlockDrag(this.currentDragDeltaXY_);this.blockDragger_.dragBlock(this.mostRecentEvent_,this.currentDragDeltaXY_)};
 Blockly.Gesture.prototype.startDraggingBubble_=function(){this.bubbleDragger_=new Blockly.BubbleDragger(this.startBubble_,this.startWorkspace_);this.bubbleDragger_.startBubbleDrag();this.bubbleDragger_.dragBubble(this.mostRecentEvent_,this.currentDragDeltaXY_)};
 Blockly.Gesture.prototype.doStart=function(a){Blockly.utils.isTargetInput(a)?this.cancel():(this.hasStarted_=!0,Blockly.BlockSvg.disconnectUiStop_(),this.startWorkspace_.updateScreenCalculationsIfScrolled(),this.startWorkspace_.isMutator&&this.startWorkspace_.resize(),this.startWorkspace_.markFocused(),this.mostRecentEvent_=a,Blockly.hideChaff(!!this.flyout_),Blockly.Tooltip.block(),this.targetBlock_&&this.targetBlock_.select(),Blockly.utils.isRightButton(a)?this.handleRightClick(a):((goog.string.caseInsensitiveEquals(a.type,
-"touchstart")||goog.string.caseInsensitiveEquals(a.type,"pointerdown"))&&Blockly.longStart_(a,this),this.mouseDownXY_=new goog.math.Coordinate(a.clientX,a.clientY),this.bindMouseEvents(a)))};Blockly.Gesture.prototype.bindMouseEvents=function(a){this.onMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",null,this.handleMove.bind(this));this.onUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",null,this.handleUp.bind(this));a.preventDefault();a.stopPropagation()};
+"touchstart")||goog.string.caseInsensitiveEquals(a.type,"pointerdown")&&"mouse"!=a.pointerType)&&Blockly.longStart_(a,this),this.mouseDownXY_=new goog.math.Coordinate(a.clientX,a.clientY),this.bindMouseEvents(a)))};Blockly.Gesture.prototype.bindMouseEvents=function(a){this.onMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",null,this.handleMove.bind(this));this.onUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",null,this.handleUp.bind(this));a.preventDefault();a.stopPropagation()};
 Blockly.Gesture.prototype.handleMove=function(a){this.updateFromEvent_(a);this.isDraggingWorkspace_?this.workspaceDragger_.drag(this.currentDragDeltaXY_):this.isDraggingBlock_?this.blockDragger_.dragBlock(this.mostRecentEvent_,this.currentDragDeltaXY_):this.isDraggingBubble_&&this.bubbleDragger_.dragBubble(this.mostRecentEvent_,this.currentDragDeltaXY_);a.preventDefault();a.stopPropagation()};
 Blockly.Gesture.prototype.handleUp=function(a){this.updateFromEvent_(a);Blockly.longStop_();this.isEnding_?console.log("Trying to end a gesture recursively."):(this.isEnding_=!0,this.isDraggingBubble_?this.bubbleDragger_.endBubbleDrag(a,this.currentDragDeltaXY_):this.isDraggingBlock_?this.blockDragger_.endBlockDrag(a,this.currentDragDeltaXY_):this.isDraggingWorkspace_?this.workspaceDragger_.endDrag(this.currentDragDeltaXY_):this.isBubbleClick_()?this.doBubbleClick_():this.isFieldClick_()?this.doFieldClick_():
 this.isBlockClick_()?this.doBlockClick_():this.isWorkspaceClick_()&&this.doWorkspaceClick_(),a.preventDefault(),a.stopPropagation(),this.dispose())};
@@ -1082,7 +1084,7 @@ Blockly.utils.checkMessageReferences=function(a){for(var b=!0,c=Blockly.utils.ge
 Blockly.utils.tokenizeInterpolation_=function(a,b){var c=[],d=a.split("");d.push("");for(var e=0,f=[],g=null,h=0;h<d.length;h++){var k=d[h];0==e?"%"==k?((k=f.join(""))&&c.push(k),f.length=0,e=1):f.push(k):1==e?"%"==k?(f.push(k),e=0):b&&"0"<=k&&"9">=k?(e=2,g=k,(k=f.join(""))&&c.push(k),f.length=0):"{"==k?e=3:(f.push("%",k),e=0):2==e?"0"<=k&&"9">=k?g+=k:(c.push(parseInt(g,10)),h--,e=0):3==e&&(""==k?(f.splice(0,0,"%{"),h--,e=0):"}"!=k?f.push(k):(e=f.join(""),/[a-zA-Z][a-zA-Z0-9_]*/.test(e)?(k=e.toUpperCase(),
 (k=goog.string.startsWith(k,"BKY_")?k.substring(4):null)&&k in Blockly.utils.getMessageArray_()?(e=Blockly.utils.getMessageArray_()[k],goog.isString(e)?Array.prototype.push.apply(c,Blockly.utils.tokenizeInterpolation_(e,b)):b?c.push(String(e)):c.push(e)):c.push("%{"+e+"}")):c.push("%{"+e+"}"),e=f.length=0))}(k=f.join(""))&&c.push(k);d=[];for(h=f.length=0;h<c.length;++h)"string"==typeof c[h]?f.push(c[h]):((k=f.join(""))&&d.push(k),f.length=0,d.push(c[h]));(k=f.join(""))&&d.push(k);f.length=0;return d};
 Blockly.utils.genUid=function(){for(var a=Blockly.utils.genUid.soup_.length,b=[],c=0;20>c;c++)b[c]=Blockly.utils.genUid.soup_.charAt(Math.random()*a);return b.join("")};Blockly.utils.genUid.soup_="!#$%()*+,-./:;=?@[]^_`{|}~ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";Blockly.utils.wrap=function(a,b){for(var c=a.split("\n"),d=0;d<c.length;d++)c[d]=Blockly.utils.wrapLine_(c[d],b);return c.join("\n")};
-Blockly.utils.wrapLine_=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);d=-Infinity;var e=1;do{var f=d;var g=a;var h=[],k=c.length/e,n=1;for(d=0;d<c.length-1;d++)n<(d+1.5)/k?(n++,h[d]=!0):h[d]=!1;h=Blockly.utils.wrapMutate_(c,h,b);d=Blockly.utils.wrapScore_(c,h,b);a=Blockly.utils.wrapToText_(c,h);e++}while(d>f);return g};
+Blockly.utils.wrapLine_=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);d=-Infinity;var e=1;do{var f=d;var g=a;var h=[],k=c.length/e,m=1;for(d=0;d<c.length-1;d++)m<(d+1.5)/k?(m++,h[d]=!0):h[d]=!1;h=Blockly.utils.wrapMutate_(c,h,b);d=Blockly.utils.wrapScore_(c,h,b);a=Blockly.utils.wrapToText_(c,h);e++}while(d>f);return g};
 Blockly.utils.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.utils.wrapMutate_=function(a,b,c){for(var d=Blockly.utils.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.utils.wrapScore_(a,g,c);h>d&&(d=h,e=g)}return e?Blockly.utils.wrapMutate_(a,e,c):b};Blockly.utils.wrapToText_=function(a,b){for(var c=[],d=0;d<a.length;d++)c.push(a[d]),void 0!==b[d]&&c.push(b[d]?"\n":" ");return c.join("")};
 Blockly.utils.is3dSupported=function(){if(void 0!==Blockly.utils.is3dSupported.cached_)return Blockly.utils.is3dSupported.cached_;if(!goog.global.getComputedStyle)return!1;var a=document.createElement("p"),b="none",c={webkitTransform:"-webkit-transform",OTransform:"-o-transform",msTransform:"-ms-transform",MozTransform:"-moz-transform",transform:"transform"};document.body.insertBefore(a,null);for(var d in c)if(void 0!==a.style[d]){a.style[d]="translate3d(1px,1px,1px)";b=goog.global.getComputedStyle(a);
@@ -1091,8 +1093,8 @@ Blockly.utils.runAfterPageLoad=function(a){if("object"!=typeof document)throw Er
 Blockly.utils.getViewportBBox=function(){var a=goog.dom.getViewportSize(),b=goog.style.getViewportPageOffset(document);return{right:a.width+b.x,bottom:a.height+b.y,top:b.y,left:b.x}};Blockly.Grid=function(a,b){this.gridPattern_=a;this.spacing_=b.spacing;this.length_=b.length;this.line2_=(this.line1_=a.firstChild)&&this.line1_.nextSibling;this.snapToGrid_=b.snap};Blockly.Grid.prototype.scale_=1;Blockly.Grid.prototype.dispose=function(){this.gridPattern_=null};Blockly.Grid.prototype.shouldSnap=function(){return this.snapToGrid_};Blockly.Grid.prototype.getSpacing=function(){return this.spacing_};Blockly.Grid.prototype.getPatternId=function(){return this.gridPattern_.id};
 Blockly.Grid.prototype.update=function(a){this.scale_=a;var b=this.spacing_*a||100;this.gridPattern_.setAttribute("width",b);this.gridPattern_.setAttribute("height",b);b=Math.floor(this.spacing_/2)+.5;var c=b-this.length_/2,d=b+this.length_/2;b*=a;c*=a;d*=a;this.setLineAttributes_(this.line1_,a,c,d,b,b);this.setLineAttributes_(this.line2_,a,b,b,c,d)};
 Blockly.Grid.prototype.setLineAttributes_=function(a,b,c,d,e,f){a&&(a.setAttribute("stroke-width",b),a.setAttribute("x1",c),a.setAttribute("y1",e),a.setAttribute("x2",d),a.setAttribute("y2",f))};Blockly.Grid.prototype.moveTo=function(a,b){this.gridPattern_.setAttribute("x",a);this.gridPattern_.setAttribute("y",b);(goog.userAgent.IE||goog.userAgent.EDGE)&&this.update(this.scale_)};
-Blockly.Grid.createDom=function(a,b,c){a=Blockly.utils.createSvgElement("pattern",{id:"blocklyGridPattern"+a,patternUnits:"userSpaceOnUse"},c);0<b.length&&0<b.spacing&&(Blockly.utils.createSvgElement("line",{stroke:b.colour},a),1<b.length&&Blockly.utils.createSvgElement("line",{stroke:b.colour},a));return a};Blockly.Options=function(a){var b=!!a.readOnly;if(b)var c=null,d=!1,e=!1,f=!1,g=!1,h=!1,k=!1;else c=Blockly.Options.parseToolboxTree(a.toolbox),d=!(!c||!c.getElementsByTagName("category").length),e=a.trashcan,void 0===e&&(e=d),f=a.collapse,void 0===f&&(f=d),g=a.comments,void 0===g&&(g=d),h=a.disable,void 0===h&&(h=d),k=a.sounds,void 0===k&&(k=!0);var n=!!a.rtl,p=a.horizontalLayout;void 0===p&&(p=!1);var l=a.toolboxPosition;l="end"===l?!1:!0;l=p?l?Blockly.TOOLBOX_AT_TOP:Blockly.TOOLBOX_AT_BOTTOM:l==
-n?Blockly.TOOLBOX_AT_RIGHT:Blockly.TOOLBOX_AT_LEFT;var m=a.scrollbars;void 0===m&&(m=d);var q=a.css;void 0===q&&(q=!0);var t="https://blockly-demo.appspot.com/static/media/";a.media?t=a.media:a.path&&(t=a.path+"media/");var r=void 0===a.oneBasedIndex?!0:!!a.oneBasedIndex;this.RTL=n;this.oneBasedIndex=r;this.collapse=f;this.comments=g;this.disable=h;this.readOnly=b;this.maxBlocks=a.maxBlocks||Infinity;this.pathToMedia=t;this.hasCategories=d;this.hasScrollbars=m;this.hasTrashcan=e;this.hasSounds=k;
+Blockly.Grid.createDom=function(a,b,c){a=Blockly.utils.createSvgElement("pattern",{id:"blocklyGridPattern"+a,patternUnits:"userSpaceOnUse"},c);0<b.length&&0<b.spacing&&(Blockly.utils.createSvgElement("line",{stroke:b.colour},a),1<b.length&&Blockly.utils.createSvgElement("line",{stroke:b.colour},a));return a};Blockly.Options=function(a){var b=!!a.readOnly;if(b)var c=null,d=!1,e=!1,f=!1,g=!1,h=!1,k=!1;else c=Blockly.Options.parseToolboxTree(a.toolbox),d=!(!c||!c.getElementsByTagName("category").length),e=a.trashcan,void 0===e&&(e=d),f=a.collapse,void 0===f&&(f=d),g=a.comments,void 0===g&&(g=d),h=a.disable,void 0===h&&(h=d),k=a.sounds,void 0===k&&(k=!0);var m=!!a.rtl,p=a.horizontalLayout;void 0===p&&(p=!1);var l=a.toolboxPosition;l="end"===l?!1:!0;l=p?l?Blockly.TOOLBOX_AT_TOP:Blockly.TOOLBOX_AT_BOTTOM:l==
+m?Blockly.TOOLBOX_AT_RIGHT:Blockly.TOOLBOX_AT_LEFT;var n=a.scrollbars;void 0===n&&(n=d);var q=a.css;void 0===q&&(q=!0);var t="https://blockly-demo.appspot.com/static/media/";a.media?t=a.media:a.path&&(t=a.path+"media/");var r=void 0===a.oneBasedIndex?!0:!!a.oneBasedIndex;this.RTL=m;this.oneBasedIndex=r;this.collapse=f;this.comments=g;this.disable=h;this.readOnly=b;this.maxBlocks=a.maxBlocks||Infinity;this.pathToMedia=t;this.hasCategories=d;this.hasScrollbars=n;this.hasTrashcan=e;this.hasSounds=k;
 this.hasCss=q;this.horizontalLayout=p;this.languageTree=c;this.gridOptions=Blockly.Options.parseGridOptions_(a);this.zoomOptions=Blockly.Options.parseZoomOptions_(a);this.toolboxPosition=l};Blockly.Options.prototype.parentWorkspace=null;Blockly.Options.prototype.setMetrics=null;Blockly.Options.prototype.getMetrics=null;
 Blockly.Options.parseZoomOptions_=function(a){a=a.zoom||{};var b={};b.controls=void 0===a.controls?!1:!!a.controls;b.wheel=void 0===a.wheel?!1:!!a.wheel;b.startScale=void 0===a.startScale?1:parseFloat(a.startScale);b.maxScale=void 0===a.maxScale?3:parseFloat(a.maxScale);b.minScale=void 0===a.minScale?.3:parseFloat(a.minScale);b.scaleSpeed=void 0===a.scaleSpeed?1.2:parseFloat(a.scaleSpeed);return b};
 Blockly.Options.parseGridOptions_=function(a){a=a.grid||{};var b={};b.spacing=parseFloat(a.spacing)||0;b.colour=a.colour||"#888";b.length=parseFloat(a.length)||1;b.snap=0<b.spacing&&!!a.snap;return b};Blockly.Options.parseToolboxTree=function(a){a?("string"!=typeof a&&("undefined"==typeof XSLTProcessor&&a.outerHTML?a=a.outerHTML:a instanceof Element||(a=null)),"string"==typeof a&&(a=Blockly.Xml.textToDom(a))):a=null;return a};Blockly.ScrollbarPair=function(a){this.workspace_=a;this.hScroll=new Blockly.Scrollbar(a,!0,!0,"blocklyMainWorkspaceScrollbar");this.vScroll=new Blockly.Scrollbar(a,!1,!0,"blocklyMainWorkspaceScrollbar");this.corner_=Blockly.utils.createSvgElement("rect",{height:Blockly.Scrollbar.scrollbarThickness,width:Blockly.Scrollbar.scrollbarThickness,"class":"blocklyScrollbarBackground"},null);Blockly.utils.insertAfter_(this.corner_,a.getBubbleCanvas())};Blockly.ScrollbarPair.prototype.oldHostMetrics_=null;
@@ -1120,7 +1122,14 @@ Blockly.Scrollbar.prototype.onMouseDownHandle_=function(a){this.workspace_.markF
 a.stopPropagation(),a.preventDefault())};Blockly.Scrollbar.prototype.onMouseMoveHandle_=function(a){this.setHandlePosition(this.constrainHandle_(this.startDragHandle+((this.horizontal_?a.clientX:a.clientY)-this.startDragMouse_)));this.onScroll_()};Blockly.Scrollbar.prototype.onMouseUpHandle_=function(){this.workspace_.resetDragSurface();Blockly.Touch.clearTouchIdentifier();this.cleanUp_()};
 Blockly.Scrollbar.prototype.cleanUp_=function(){Blockly.hideChaff(!0);Blockly.Scrollbar.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.Scrollbar.onMouseUpWrapper_),Blockly.Scrollbar.onMouseUpWrapper_=null);Blockly.Scrollbar.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.Scrollbar.onMouseMoveWrapper_),Blockly.Scrollbar.onMouseMoveWrapper_=null)};
 Blockly.Scrollbar.prototype.constrainHandle_=function(a){return a=0>=a||isNaN(a)||this.scrollViewSize_<this.handleLength_?0:Math.min(a,this.scrollViewSize_-this.handleLength_)};Blockly.Scrollbar.prototype.onScroll_=function(){var a=this.handlePosition_/this.scrollViewSize_;isNaN(a)&&(a=0);var b={};this.horizontal_?b.x=a:b.y=a;this.workspace_.setMetrics(b)};Blockly.Scrollbar.prototype.set=function(a){this.setHandlePosition(this.constrainHandle_(a*this.ratio_));this.onScroll_()};
-Blockly.Scrollbar.prototype.setOrigin=function(a,b){this.origin_=new goog.math.Coordinate(a,b)};Blockly.Trashcan=function(a){this.workspace_=a};Blockly.Trashcan.prototype.WIDTH_=47;Blockly.Trashcan.prototype.BODY_HEIGHT_=44;Blockly.Trashcan.prototype.LID_HEIGHT_=16;Blockly.Trashcan.prototype.MARGIN_BOTTOM_=20;Blockly.Trashcan.prototype.MARGIN_SIDE_=20;Blockly.Trashcan.prototype.MARGIN_HOTSPOT_=10;Blockly.Trashcan.prototype.SPRITE_LEFT_=0;Blockly.Trashcan.prototype.SPRITE_TOP_=32;Blockly.Trashcan.prototype.isOpen=!1;Blockly.Trashcan.prototype.svgGroup_=null;
+Blockly.Scrollbar.prototype.setOrigin=function(a,b){this.origin_=new goog.math.Coordinate(a,b)};Blockly.TouchGesture=function(a,b){Blockly.TouchGesture.superClass_.constructor.call(this,a,b);this.isMultiTouch_=!1;this.cachedPoints_={};this.startDistance_=this.previousScale_=0;this.onStartWrapper_=null};goog.inherits(Blockly.TouchGesture,Blockly.Gesture);Blockly.TouchGesture.ZOOM_IN_MULTIPLIER=5;Blockly.TouchGesture.ZOOM_OUT_MULTIPLIER=6;Blockly.TouchGesture.prototype.doStart=function(a){Blockly.TouchGesture.superClass_.doStart.call(this,a);!this.isEnding_&&Blockly.Touch.isTouchEvent(a)&&this.handleTouchStart(a)};
+Blockly.TouchGesture.prototype.bindMouseEvents=function(a){this.onStartWrapper_=Blockly.bindEventWithChecks_(document,"mousedown",null,this.handleStart.bind(this),!0);this.onMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",null,this.handleMove.bind(this),!0);this.onUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",null,this.handleUp.bind(this),!0);a.preventDefault();a.stopPropagation()};
+Blockly.TouchGesture.prototype.handleStart=function(a){!this.isDragging()&&Blockly.Touch.isTouchEvent(a)&&(this.handleTouchStart(a),this.isMultiTouch()&&Blockly.longStop_())};Blockly.TouchGesture.prototype.handleMove=function(a){this.isDragging()?Blockly.Touch.shouldHandleEvent(a)&&Blockly.TouchGesture.superClass_.handleMove.call(this,a):this.isMultiTouch()?(Blockly.Touch.isTouchEvent(a)&&this.handleTouchMove(a),Blockly.longStop_()):Blockly.TouchGesture.superClass_.handleMove.call(this,a)};
+Blockly.TouchGesture.prototype.handleUp=function(a){Blockly.Touch.isTouchEvent(a)&&!this.isDragging()&&this.handleTouchEnd(a);!this.isMultiTouch()||this.isDragging()?Blockly.Touch.shouldHandleEvent(a)&&Blockly.TouchGesture.superClass_.handleUp.call(this,a):(a.preventDefault(),a.stopPropagation(),this.dispose())};Blockly.TouchGesture.prototype.isMultiTouch=function(){return this.isMultiTouch_};
+Blockly.TouchGesture.prototype.dispose=function(){Blockly.TouchGesture.superClass_.dispose.call(this);this.onStartWrapper_&&Blockly.unbindEvent_(this.onStartWrapper_)};Blockly.TouchGesture.prototype.handleTouchStart=function(a){var b=Blockly.Touch.getTouchIdentifierFromEvent(a);this.cachedPoints_[b]=this.getTouchPoint(a);b=Object.keys(this.cachedPoints_);2==b.length&&(this.startDistance_=goog.math.Coordinate.distance(this.cachedPoints_[b[0]],this.cachedPoints_[b[1]]),this.isMultiTouch_=!0,a.preventDefault())};
+Blockly.TouchGesture.prototype.handleTouchMove=function(a){var b=Blockly.Touch.getTouchIdentifierFromEvent(a);this.cachedPoints_[b]=this.getTouchPoint(a);b=Object.keys(this.cachedPoints_);if(2==b.length){b=this.touchScale_=goog.math.Coordinate.distance(this.cachedPoints_[b[0]],this.cachedPoints_[b[1]])/this.startDistance_;if(0<this.previousScale_&&Infinity>this.previousScale_){var c=b-this.previousScale_;c=0<c?c*Blockly.TouchGesture.ZOOM_IN_MULTIPLIER:c*Blockly.TouchGesture.ZOOM_OUT_MULTIPLIER;var d=
+this.startWorkspace_,e=Blockly.utils.mouseToSvg(a,d.getParentSvg(),d.getInverseScreenCTM());d.zoom(e.x,e.y,c)}this.previousScale_=b;a.preventDefault()}};Blockly.TouchGesture.prototype.handleTouchEnd=function(a){a=Blockly.Touch.getTouchIdentifierFromEvent(a);this.cachedPoints_[a]&&delete this.cachedPoints_[a];2>Object.keys(this.cachedPoints_).length&&(this.cachedPoints_={},this.previousScale_=0)};
+Blockly.TouchGesture.prototype.getTouchPoint=function(a){return this.startWorkspace_?new goog.math.Coordinate(a.pageX?a.pageX:a.changedTouches[0].pageX,a.pageY?a.pageY:a.changedTouches[0].pageY):null};Blockly.Trashcan=function(a){this.workspace_=a};Blockly.Trashcan.prototype.WIDTH_=47;Blockly.Trashcan.prototype.BODY_HEIGHT_=44;Blockly.Trashcan.prototype.LID_HEIGHT_=16;Blockly.Trashcan.prototype.MARGIN_BOTTOM_=20;Blockly.Trashcan.prototype.MARGIN_SIDE_=20;Blockly.Trashcan.prototype.MARGIN_HOTSPOT_=10;Blockly.Trashcan.prototype.SPRITE_LEFT_=0;Blockly.Trashcan.prototype.SPRITE_TOP_=32;Blockly.Trashcan.prototype.isOpen=!1;Blockly.Trashcan.prototype.svgGroup_=null;
 Blockly.Trashcan.prototype.svgLid_=null;Blockly.Trashcan.prototype.lidTask_=0;Blockly.Trashcan.prototype.lidOpen_=0;Blockly.Trashcan.prototype.left_=0;Blockly.Trashcan.prototype.top_=0;
 Blockly.Trashcan.prototype.createDom=function(){this.svgGroup_=Blockly.utils.createSvgElement("g",{"class":"blocklyTrash"},null);var a=String(Math.random()).substring(2);var b=Blockly.utils.createSvgElement("clipPath",{id:"blocklyTrashBodyClipPath"+a},this.svgGroup_);Blockly.utils.createSvgElement("rect",{width:this.WIDTH_,height:this.BODY_HEIGHT_,y:this.LID_HEIGHT_},b);Blockly.utils.createSvgElement("image",{width:Blockly.SPRITE.width,x:-this.SPRITE_LEFT_,height:Blockly.SPRITE.height,y:-this.SPRITE_TOP_,
 "clip-path":"url(#blocklyTrashBodyClipPath"+a+")"},this.svgGroup_).setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",this.workspace_.options.pathToMedia+Blockly.SPRITE.url);b=Blockly.utils.createSvgElement("clipPath",{id:"blocklyTrashLidClipPath"+a},this.svgGroup_);Blockly.utils.createSvgElement("rect",{width:this.WIDTH_,height:this.LID_HEIGHT_},b);this.svgLid_=Blockly.utils.createSvgElement("image",{width:Blockly.SPRITE.width,x:-this.SPRITE_LEFT_,height:Blockly.SPRITE.height,y:-this.SPRITE_TOP_,
@@ -1137,7 +1146,7 @@ Blockly.Variables.flyoutCategory=function(a){var b=[],c=goog.dom.createDom("butt
 Blockly.Variables.flyoutCategoryBlocks=function(a){a=a.getVariablesOfType("");a.sort(Blockly.VariableModel.compareByName);var b=[];if(0<a.length){var c=a[0];if(Blockly.Blocks.variables_set){var d=Blockly.Blocks.math_change?8:24;d='<xml><block type="variables_set" gap="'+d+'">'+Blockly.Variables.generateVariableFieldXml_(c)+"</block></xml>";d=Blockly.Xml.textToDom(d).firstChild;b.push(d)}Blockly.Blocks.math_change&&(d=Blockly.Blocks.variables_get?20:8,d='<xml><block type="math_change" gap="'+d+'">'+
 Blockly.Variables.generateVariableFieldXml_(c)+'<value name="DELTA"><shadow type="math_number"><field name="NUM">1</field></shadow></value></block></xml>',d=Blockly.Xml.textToDom(d).firstChild,b.push(d));for(c=0;d=a[c];c++)Blockly.Blocks.variables_get&&(d='<xml><block type="variables_get" gap="8">'+Blockly.Variables.generateVariableFieldXml_(d)+"</block></xml>",d=Blockly.Xml.textToDom(d).firstChild,b.push(d))}return b};
 Blockly.Variables.generateUniqueName=function(a){a=a.getAllVariables();var b="";if(a.length)for(var c=1,d=0,e="ijkmnopqrstuvwxyzabcdefgh".charAt(d);!b;){for(var f=!1,g=0;g<a.length;g++)if(a[g].name.toLowerCase()==e){f=!0;break}f?(d++,25==d&&(d=0,c++),e="ijkmnopqrstuvwxyzabcdefgh".charAt(d),1<c&&(e+=c)):b=e}else b="i";return b};
-Blockly.Variables.createVariableButtonHandler=function(a,b,c){var d=c||"",e=function(c){Blockly.Variables.promptName(Blockly.Msg.NEW_VARIABLE_TITLE,c,function(c){if(c){var f=Blockly.Variables.nameUsedWithAnyType_(c,a);if(f){var g=c.toLowerCase();if(f.type==d)var n=Blockly.Msg.VARIABLE_ALREADY_EXISTS.replace("%1",g);else n=Blockly.Msg.VARIABLE_ALREADY_EXISTS_FOR_ANOTHER_TYPE,n=n.replace("%1",g).replace("%2",f.type);Blockly.alert(n,function(){e(c)})}else a.createVariable(c,d),b&&b(c)}else b&&b(null)})};
+Blockly.Variables.createVariableButtonHandler=function(a,b,c){var d=c||"",e=function(c){Blockly.Variables.promptName(Blockly.Msg.NEW_VARIABLE_TITLE,c,function(c){if(c){var f=Blockly.Variables.nameUsedWithAnyType_(c,a);if(f){var g=c.toLowerCase();if(f.type==d)var m=Blockly.Msg.VARIABLE_ALREADY_EXISTS.replace("%1",g);else m=Blockly.Msg.VARIABLE_ALREADY_EXISTS_FOR_ANOTHER_TYPE,m=m.replace("%1",g).replace("%2",f.type);Blockly.alert(m,function(){e(c)})}else a.createVariable(c,d),b&&b(c)}else b&&b(null)})};
 e("")};goog.exportSymbol("Blockly.Variables.createVariableButtonHandler",Blockly.Variables.createVariableButtonHandler);Blockly.Variables.createVariable=Blockly.Variables.createVariableButtonHandler;goog.exportSymbol("Blockly.Variables.createVariable",Blockly.Variables.createVariable);
 Blockly.Variables.renameVariable=function(a,b,c){var d=function(e){var f=Blockly.Msg.RENAME_VARIABLE_TITLE.replace("%1",b.name);Blockly.Variables.promptName(f,e,function(e){if(e){var f=Blockly.Variables.nameUsedWithOtherType_(e,b.type,a);f?(f=Blockly.Msg.VARIABLE_ALREADY_EXISTS_FOR_ANOTHER_TYPE.replace("%1",e.toLowerCase()).replace("%2",f.type),Blockly.alert(f,function(){d(e)})):(a.renameVariableById(b.getId(),e),c&&c(e))}else c&&c(null)})};d("")};
 Blockly.Variables.promptName=function(a,b,c){Blockly.prompt(a,b,function(a){a&&(a=a.replace(/[\s\xa0]+/g," ").replace(/^ | $/g,""),a==Blockly.Msg.RENAME_VARIABLE||a==Blockly.Msg.NEW_VARIABLE)&&(a=null);c(a)})};Blockly.Variables.nameUsedWithOtherType_=function(a,b,c){c=c.getVariableMap().getAllVariables();a=a.toLowerCase();for(var d=0,e;e=c[d];d++)if(e.name.toLowerCase()==a&&e.type!=b)return e;return null};
@@ -1151,9 +1160,9 @@ Blockly.VariablesDynamic.flyoutCategoryBlocks=function(a){a=a.getAllVariables();
 Blockly.WorkspaceAudio.prototype.preload=function(){for(var a in this.SOUNDS_){var b=this.SOUNDS_[a];b.volume=.01;b.play();b.pause();if(goog.userAgent.IPAD||goog.userAgent.IPHONE)break}};
 Blockly.WorkspaceAudio.prototype.play=function(a,b){var c=this.SOUNDS_[a];if(c){var d=new Date;null!=this.lastSound_&&d-this.lastSound_<Blockly.SOUND_LIMIT||(this.lastSound_=d,c=goog.userAgent.DOCUMENT_MODE&&9===goog.userAgent.DOCUMENT_MODE||goog.userAgent.IPAD||goog.userAgent.ANDROID?c:c.cloneNode(),c.volume=void 0===b?1:b,c.play())}else this.parentWorkspace_&&this.parentWorkspace_.getAudioManager().play(a,b)};Blockly.WorkspaceDragSurfaceSvg=function(a){this.container_=a;this.createDom()};Blockly.WorkspaceDragSurfaceSvg.prototype.SVG_=null;Blockly.WorkspaceDragSurfaceSvg.prototype.dragGroup_=null;Blockly.WorkspaceDragSurfaceSvg.prototype.container_=null;
 Blockly.WorkspaceDragSurfaceSvg.prototype.createDom=function(){this.SVG_||(this.SVG_=Blockly.utils.createSvgElement("svg",{xmlns:Blockly.SVG_NS,"xmlns:html":Blockly.HTML_NS,"xmlns:xlink":"http://www.w3.org/1999/xlink",version:"1.1","class":"blocklyWsDragSurface blocklyOverflowVisible"},null),this.container_.appendChild(this.SVG_))};
-Blockly.WorkspaceDragSurfaceSvg.prototype.translateSurface=function(a,b){a=a.toFixed(0);b=b.toFixed(0);this.SVG_.style.display="block";Blockly.utils.setCssTransform(this.SVG_,"translate3d("+a+"px, "+b+"px, 0px)")};Blockly.WorkspaceDragSurfaceSvg.prototype.getSurfaceTranslation=function(){return Blockly.utils.getRelativeXY(this.SVG_)};
-Blockly.WorkspaceDragSurfaceSvg.prototype.clearAndHide=function(a){var b=this.SVG_.childNodes[0],c=this.SVG_.childNodes[1];if(!(b&&c&&Blockly.utils.hasClass(b,"blocklyBlockCanvas")&&Blockly.utils.hasClass(c,"blocklyBubbleCanvas")))throw"Couldn't clear and hide the drag surface.  A node was missing.";null!=this.previousSibling_?Blockly.utils.insertAfter_(b,this.previousSibling_):a.insertBefore(b,a.firstChild);Blockly.utils.insertAfter_(c,b);this.SVG_.style.display="none";goog.asserts.assert(0==this.SVG_.childNodes.length,
-"Drag surface was not cleared.");Blockly.utils.setCssTransform(this.SVG_,"");this.previousSibling_=null};
+Blockly.WorkspaceDragSurfaceSvg.prototype.translateSurface=function(a,b){var c=a.toFixed(0),d=b.toFixed(0);this.SVG_.style.display="block";Blockly.utils.setCssTransform(this.SVG_,"translate3d("+c+"px, "+d+"px, 0px)")};Blockly.WorkspaceDragSurfaceSvg.prototype.getSurfaceTranslation=function(){return Blockly.utils.getRelativeXY(this.SVG_)};
+Blockly.WorkspaceDragSurfaceSvg.prototype.clearAndHide=function(a){if(!a)throw"Couldn't clear and hide the drag surface: missing new surface.";var b=this.SVG_.childNodes[0],c=this.SVG_.childNodes[1];if(!(b&&c&&Blockly.utils.hasClass(b,"blocklyBlockCanvas")&&Blockly.utils.hasClass(c,"blocklyBubbleCanvas")))throw"Couldn't clear and hide the drag surface.  A node was missing.";null!=this.previousSibling_?Blockly.utils.insertAfter_(b,this.previousSibling_):a.insertBefore(b,a.firstChild);Blockly.utils.insertAfter_(c,
+b);this.SVG_.style.display="none";goog.asserts.assert(0==this.SVG_.childNodes.length,"Drag surface was not cleared.");Blockly.utils.setCssTransform(this.SVG_,"");this.previousSibling_=null};
 Blockly.WorkspaceDragSurfaceSvg.prototype.setContentsAndShow=function(a,b,c,d,e,f){goog.asserts.assert(0==this.SVG_.childNodes.length,"Already dragging a block.");this.previousSibling_=c;a.setAttribute("transform","translate(0, 0) scale("+f+")");b.setAttribute("transform","translate(0, 0) scale("+f+")");this.SVG_.setAttribute("width",d);this.SVG_.setAttribute("height",e);this.SVG_.appendChild(a);this.SVG_.appendChild(b);this.SVG_.style.display="block"};Blockly.Xml={};Blockly.Xml.workspaceToDom=function(a,b){var c=goog.dom.createDom("xml"),d=Blockly.Variables.allUsedVarModels(a);d.length&&c.appendChild(Blockly.Xml.variablesToDom(d));d=a.getTopBlocks(!0);for(var e=0,f;f=d[e];e++)c.appendChild(Blockly.Xml.blockToDomWithXY(f,b));return c};Blockly.Xml.variablesToDom=function(a){for(var b=goog.dom.createDom("variables"),c=0,d;d=a[c];c++){var e=goog.dom.createDom("variable",null,d.name);e.setAttribute("type",d.type);e.setAttribute("id",d.getId());b.appendChild(e)}return b};
 Blockly.Xml.blockToDomWithXY=function(a,b){var c;a.workspace.RTL&&(c=a.workspace.getWidth());var d=Blockly.Xml.blockToDom(a,b),e=a.getRelativeToSurfaceXY();d.setAttribute("x",Math.round(a.workspace.RTL?c-e.x:e.x));d.setAttribute("y",Math.round(e.y));return d};
 Blockly.Xml.fieldToDomVariable_=function(a){null==a.getValue()&&(a.initModel(),a.getValue());var b=a.getVariable();if(!b)throw Error("Tried to serialize a variable field with no variable.");var c=goog.dom.createDom("field",null,b.name);c.setAttribute("name",a.name);c.setAttribute("id",b.getId());c.setAttribute("variabletype",b.type);return c};
@@ -1164,15 +1173,15 @@ f.name);h||c.appendChild(g)}}a.inputsInlineDefault!=a.inputsInline&&c.setAttribu
 !d||e&&e.isShadow()||g.appendChild(Blockly.Xml.cloneShadow_(d));return c};Blockly.Xml.cloneShadow_=function(a){for(var b=a=a.cloneNode(!0),c;b;)if(b.firstChild)b=b.firstChild;else{for(;b&&!b.nextSibling;)c=b,b=b.parentNode,3==c.nodeType&&""==c.data.trim()&&b.firstChild!=c&&goog.dom.removeNode(c);b&&(c=b,b=b.nextSibling,3==c.nodeType&&""==c.data.trim()&&goog.dom.removeNode(c))}return a};Blockly.Xml.domToText=function(a){return(new XMLSerializer).serializeToString(a)};
 Blockly.Xml.domToPrettyText=function(a){a=Blockly.Xml.domToText(a).split("<");for(var b="",c=1;c<a.length;c++){var d=a[c];"/"==d[0]&&(b=b.substring(2));a[c]=b+"<"+d;"/"!=d[0]&&"/>"!=d.slice(-2)&&(b+="  ")}a=a.join("\n");a=a.replace(/(<(\w+)\b[^>]*>[^\n]*)\n *<\/\2>/g,"$1</$2>");return a.replace(/^\n/,"")};
 Blockly.Xml.textToDom=function(a){(a=(new DOMParser).parseFromString(a,"text/xml"))&&a.firstChild&&"xml"==a.firstChild.nodeName.toLowerCase()&&a.firstChild===a.lastChild||goog.asserts.fail("Blockly.Xml.textToDom did not obtain a valid XML tree.");return a.firstChild};
-Blockly.Xml.domToWorkspace=function(a,b){if(a instanceof Blockly.Workspace){var c=a;a=b;b=c;console.warn("Deprecated call to Blockly.Xml.domToWorkspace, swap the arguments.")}var d;b.RTL&&(d=b.getWidth());c=[];Blockly.Field.startCache();var e=a.childNodes.length,f=Blockly.Events.getGroup();f||Blockly.Events.setGroup(!0);b.setResizesEnabled&&b.setResizesEnabled(!1);var g=!0;try{for(var h=0;h<e;h++){var k=a.childNodes[h],n=k.nodeName.toLowerCase();if("block"==n||"shadow"==n&&!Blockly.Events.recordUndo){var p=
-Blockly.Xml.domToBlock(k,b);c.push(p.id);var l=parseInt(k.getAttribute("x"),10),m=parseInt(k.getAttribute("y"),10);isNaN(l)||isNaN(m)||p.moveBy(b.RTL?d-l:l,m);g=!1}else if("shadow"==n)goog.asserts.fail("Shadow block cannot be a top-level block."),g=!1;else if("variables"==n){if(g)Blockly.Xml.domToVariables(k,b);else throw Error("'variables' tag must exist once before block and shadow tag elements in the workspace XML, but it was found in another location.");g=!1}}}finally{f||Blockly.Events.setGroup(!1),
+Blockly.Xml.domToWorkspace=function(a,b){if(a instanceof Blockly.Workspace){var c=a;a=b;b=c;console.warn("Deprecated call to Blockly.Xml.domToWorkspace, swap the arguments.")}var d;b.RTL&&(d=b.getWidth());c=[];Blockly.Field.startCache();var e=a.childNodes.length,f=Blockly.Events.getGroup();f||Blockly.Events.setGroup(!0);b.setResizesEnabled&&b.setResizesEnabled(!1);var g=!0;try{for(var h=0;h<e;h++){var k=a.childNodes[h],m=k.nodeName.toLowerCase();if("block"==m||"shadow"==m&&!Blockly.Events.recordUndo){var p=
+Blockly.Xml.domToBlock(k,b);c.push(p.id);var l=parseInt(k.getAttribute("x"),10),n=parseInt(k.getAttribute("y"),10);isNaN(l)||isNaN(n)||p.moveBy(b.RTL?d-l:l,n);g=!1}else if("shadow"==m)goog.asserts.fail("Shadow block cannot be a top-level block."),g=!1;else if("variables"==m){if(g)Blockly.Xml.domToVariables(k,b);else throw Error("'variables' tag must exist once before block and shadow tag elements in the workspace XML, but it was found in another location.");g=!1}}}finally{f||Blockly.Events.setGroup(!1),
 Blockly.Field.stopCache()}b.setResizesEnabled&&b.setResizesEnabled(!0);return c};
-Blockly.Xml.appendDomToWorkspace=function(a,b){if(b.hasOwnProperty("scale")){var c=Blockly.BlockSvg.TAB_WIDTH;try{Blockly.BlockSvg.TAB_WIDTH=0;var d=b.getBlocksBoundingBox()}finally{Blockly.BlockSvg.TAB_WIDTH=c}}c=Blockly.Xml.domToWorkspace(a,b);if(d&&d.height){var e=d.y+d.height;var f=d.x;var g=Infinity,h=Infinity;for(d=0;d<c.length;d++){var k=b.getBlockById(c[d]).getRelativeToSurfaceXY();k.y<h&&(h=k.y);k.x<g&&(g=k.x)}e=e-h+Blockly.BlockSvg.SEP_SPACE_Y;f-=g;var n;b.RTL&&(n=b.getWidth());for(d=0;d<
-c.length;d++)b.getBlockById(c[d]).moveBy(b.RTL?n-f:f,e)}return c};
+Blockly.Xml.appendDomToWorkspace=function(a,b){if(b.hasOwnProperty("scale")){var c=Blockly.BlockSvg.TAB_WIDTH;try{Blockly.BlockSvg.TAB_WIDTH=0;var d=b.getBlocksBoundingBox()}finally{Blockly.BlockSvg.TAB_WIDTH=c}}c=Blockly.Xml.domToWorkspace(a,b);if(d&&d.height){var e=d.y+d.height;var f=d.x;var g=Infinity,h=Infinity;for(d=0;d<c.length;d++){var k=b.getBlockById(c[d]).getRelativeToSurfaceXY();k.y<h&&(h=k.y);k.x<g&&(g=k.x)}e=e-h+Blockly.BlockSvg.SEP_SPACE_Y;f-=g;var m;b.RTL&&(m=b.getWidth());for(d=0;d<
+c.length;d++)b.getBlockById(c[d]).moveBy(b.RTL?m-f:f,e)}return c};
 Blockly.Xml.domToBlock=function(a,b){if(a instanceof Blockly.Workspace){var c=a;a=b;b=c;console.warn("Deprecated call to Blockly.Xml.domToBlock, swap the arguments.")}Blockly.Events.disable();c=b.getAllVariables();try{var d=Blockly.Xml.domToBlockHeadless_(a,b),e=d.getDescendants();if(b.rendered){d.setConnectionsHidden(!0);for(var f=e.length-1;0<=f;f--)e[f].initSvg();for(f=e.length-1;0<=f;f--)e[f].render(!1);setTimeout(function(){d.workspace&&d.setConnectionsHidden(!1)},1);d.updateDisabled();b.resizeContents()}else for(f=
 e.length-1;0<=f;f--)e[f].initModel()}finally{Blockly.Events.enable()}if(Blockly.Events.isEnabled()){e=Blockly.Variables.getAddedVariables(b,c);for(f=0;f<e.length;f++)Blockly.Events.fire(new Blockly.Events.VarCreate(e[f]));Blockly.Events.fire(new Blockly.Events.BlockCreate(d))}return d};
 Blockly.Xml.domToVariables=function(a,b){for(var c=0,d;d=a.children[c];c++){var e=d.getAttribute("type"),f=d.getAttribute("id");d=d.textContent;if(null==e)throw Error("Variable with id, "+f+" is without a type");b.createVariable(d,e,f)}};
-Blockly.Xml.domToBlockHeadless_=function(a,b){var c=null,d=a.getAttribute("type");goog.asserts.assert(d,"Block type unspecified: %s",a.outerHTML);var e=a.getAttribute("id");c=b.newBlock(d,e);var f=null;e=0;for(var g;g=a.childNodes[e];e++)if(3!=g.nodeType){for(var h=f=null,k=0,n;n=g.childNodes[k];k++)1==n.nodeType&&("block"==n.nodeName.toLowerCase()?f=n:"shadow"==n.nodeName.toLowerCase()&&(h=n));!f&&h&&(f=h);k=g.getAttribute("name");switch(g.nodeName.toLowerCase()){case "mutation":c.domToMutation&&
+Blockly.Xml.domToBlockHeadless_=function(a,b){var c=null,d=a.getAttribute("type");goog.asserts.assert(d,"Block type unspecified: %s",a.outerHTML);var e=a.getAttribute("id");c=b.newBlock(d,e);var f=null;e=0;for(var g;g=a.childNodes[e];e++)if(3!=g.nodeType){for(var h=f=null,k=0,m;m=g.childNodes[k];k++)1==m.nodeType&&("block"==m.nodeName.toLowerCase()?f=m:"shadow"==m.nodeName.toLowerCase()&&(h=m));!f&&h&&(f=h);k=g.getAttribute("name");switch(g.nodeName.toLowerCase()){case "mutation":c.domToMutation&&
 (c.domToMutation(g),c.initSvg&&c.initSvg());break;case "comment":c.setCommentText(g.textContent);var p=g.getAttribute("pinned");p&&!c.isInFlyout&&setTimeout(function(){c.comment&&c.comment.setVisible&&c.comment.setVisible("true"==p)},1);f=parseInt(g.getAttribute("w"),10);g=parseInt(g.getAttribute("h"),10);!isNaN(f)&&!isNaN(g)&&c.comment&&c.comment.setVisible&&c.comment.setBubbleSize(f,g);break;case "data":c.data=g.textContent;break;case "title":case "field":Blockly.Xml.domToField_(c,k,g);break;case "value":case "statement":g=
 c.getInput(k);if(!g){console.warn("Ignoring non-existent input "+k+" in block "+d);break}h&&g.connection.setShadowDom(h);f&&(f=Blockly.Xml.domToBlockHeadless_(f,b),f.outputConnection?g.connection.connect(f.outputConnection):f.previousConnection?g.connection.connect(f.previousConnection):goog.asserts.fail("Child block does not have output or previous statement."));break;case "next":h&&c.nextConnection&&c.nextConnection.setShadowDom(h);f&&(goog.asserts.assert(c.nextConnection,"Next statement does not exist."),
 goog.asserts.assert(!c.nextConnection.isConnected(),"Next statement is already connected."),f=Blockly.Xml.domToBlockHeadless_(f,b),goog.asserts.assert(f.previousConnection,"Next block does not have previous statement."),c.nextConnection.connect(f.previousConnection));break;default:console.warn("Ignoring unknown tag: "+g.nodeName)}}(e=a.getAttribute("inline"))&&c.setInputsInline("true"==e);(e=a.getAttribute("disabled"))&&c.setDisabled("true"==e);(e=a.getAttribute("deletable"))&&c.setDeletable("true"==
@@ -1192,40 +1201,40 @@ Blockly.WorkspaceSvg=function(a,b,c){Blockly.WorkspaceSvg.superClass_.constructo
 this.grid_=this.options.gridPattern?new Blockly.Grid(a.gridPattern,a.gridOptions):null;Blockly.Variables&&Blockly.Variables.flyoutCategory&&this.registerToolboxCategoryCallback(Blockly.VARIABLE_CATEGORY_NAME,Blockly.Variables.flyoutCategory);Blockly.VariablesDynamic&&Blockly.VariablesDynamic.flyoutCategory&&this.registerToolboxCategoryCallback(Blockly.VARIABLE_DYNAMIC_CATEGORY_NAME,Blockly.VariablesDynamic.flyoutCategory);Blockly.Procedures&&Blockly.Procedures.flyoutCategory&&this.registerToolboxCategoryCallback(Blockly.PROCEDURE_CATEGORY_NAME,
 Blockly.Procedures.flyoutCategory)};goog.inherits(Blockly.WorkspaceSvg,Blockly.Workspace);Blockly.WorkspaceSvg.prototype.resizeHandlerWrapper_=null;Blockly.WorkspaceSvg.prototype.rendered=!0;Blockly.WorkspaceSvg.prototype.isFlyout=!1;Blockly.WorkspaceSvg.prototype.isMutator=!1;Blockly.WorkspaceSvg.prototype.resizesEnabled_=!0;Blockly.WorkspaceSvg.prototype.scrollX=0;Blockly.WorkspaceSvg.prototype.scrollY=0;Blockly.WorkspaceSvg.prototype.startScrollX=0;Blockly.WorkspaceSvg.prototype.startScrollY=0;
 Blockly.WorkspaceSvg.prototype.dragDeltaXY_=null;Blockly.WorkspaceSvg.prototype.scale=1;Blockly.WorkspaceSvg.prototype.trashcan=null;Blockly.WorkspaceSvg.prototype.scrollbar=null;Blockly.WorkspaceSvg.prototype.currentGesture_=null;Blockly.WorkspaceSvg.prototype.blockDragSurface_=null;Blockly.WorkspaceSvg.prototype.workspaceDragSurface_=null;Blockly.WorkspaceSvg.prototype.useWorkspaceDragSurface_=!1;Blockly.WorkspaceSvg.prototype.isDragSurfaceActive_=!1;
-Blockly.WorkspaceSvg.prototype.lastRecordedPageScroll_=null;Blockly.WorkspaceSvg.prototype.flyoutButtonCallbacks_={};Blockly.WorkspaceSvg.prototype.toolboxCategoryCallbacks_={};Blockly.WorkspaceSvg.prototype.targetWorkspace=null;Blockly.WorkspaceSvg.prototype.inverseScreenCTM_=null;Blockly.WorkspaceSvg.prototype.getInverseScreenCTM=function(){return this.inverseScreenCTM_};
+Blockly.WorkspaceSvg.prototype.lastRecordedPageScroll_=null;Blockly.WorkspaceSvg.prototype.flyoutButtonCallbacks_={};Blockly.WorkspaceSvg.prototype.toolboxCategoryCallbacks_={};Blockly.WorkspaceSvg.prototype.configureContextMenu=null;Blockly.WorkspaceSvg.prototype.targetWorkspace=null;Blockly.WorkspaceSvg.prototype.inverseScreenCTM_=null;Blockly.WorkspaceSvg.prototype.getInverseScreenCTM=function(){return this.inverseScreenCTM_};
 Blockly.WorkspaceSvg.prototype.updateInverseScreenCTM=function(){var a=this.getParentSvg().getScreenCTM();a&&(this.inverseScreenCTM_=a.inverse())};
 Blockly.WorkspaceSvg.prototype.getSvgXY=function(a){var b=0,c=0,d=1;if(goog.dom.contains(this.getCanvas(),a)||goog.dom.contains(this.getBubbleCanvas(),a))d=this.scale;do{var e=Blockly.utils.getRelativeXY(a);if(a==this.getCanvas()||a==this.getBubbleCanvas())d=1;b+=e.x*d;c+=e.y*d;a=a.parentNode}while(a&&a!=this.getParentSvg());return new goog.math.Coordinate(b,c)};Blockly.WorkspaceSvg.prototype.getOriginOffsetInPixels=function(){return Blockly.utils.getInjectionDivXY_(this.svgBlockCanvas_)};
 Blockly.WorkspaceSvg.prototype.setResizeHandlerWrapper=function(a){this.resizeHandlerWrapper_=a};
 Blockly.WorkspaceSvg.prototype.createDom=function(a){this.svgGroup_=Blockly.utils.createSvgElement("g",{"class":"blocklyWorkspace"},null);a&&(this.svgBackground_=Blockly.utils.createSvgElement("rect",{height:"100%",width:"100%","class":a},this.svgGroup_),"blocklyMainBackground"==a&&this.grid_&&(this.svgBackground_.style.fill="url(#"+this.grid_.getPatternId()+")"));this.svgBlockCanvas_=Blockly.utils.createSvgElement("g",{"class":"blocklyBlockCanvas"},this.svgGroup_);this.svgBubbleCanvas_=Blockly.utils.createSvgElement("g",
-{"class":"blocklyBubbleCanvas"},this.svgGroup_);a=Blockly.Scrollbar.scrollbarThickness;this.options.hasTrashcan&&(a=this.addTrashcan_(a));this.options.zoomOptions&&this.options.zoomOptions.controls&&this.addZoomControls_(a);this.isFlyout||(Blockly.bindEventWithChecks_(this.svgGroup_,"mousedown",this,this.onMouseDown_),this.options.zoomOptions&&this.options.zoomOptions.wheel&&Blockly.bindEventWithChecks_(this.svgGroup_,"wheel",this,this.onMouseWheel_));this.options.hasCategories&&(this.toolbox_=new Blockly.Toolbox(this));
-this.grid_&&this.grid_.update(this.scale);this.recordDeleteAreas();return this.svgGroup_};
+{"class":"blocklyBubbleCanvas"},this.svgGroup_);a=Blockly.Scrollbar.scrollbarThickness;this.options.hasTrashcan&&(a=this.addTrashcan_(a));this.options.zoomOptions&&this.options.zoomOptions.controls&&this.addZoomControls_(a);this.isFlyout||(Blockly.bindEventWithChecks_(this.svgGroup_,"mousedown",this,this.onMouseDown_,!1,!0),this.options.zoomOptions&&this.options.zoomOptions.wheel&&Blockly.bindEventWithChecks_(this.svgGroup_,"wheel",this,this.onMouseWheel_));this.options.hasCategories&&(this.toolbox_=
+new Blockly.Toolbox(this));this.grid_&&this.grid_.update(this.scale);this.recordDeleteAreas();return this.svgGroup_};
 Blockly.WorkspaceSvg.prototype.dispose=function(){this.rendered=!1;this.currentGesture_&&this.currentGesture_.cancel();Blockly.WorkspaceSvg.superClass_.dispose.call(this);this.svgGroup_&&(goog.dom.removeNode(this.svgGroup_),this.svgGroup_=null);this.svgBubbleCanvas_=this.svgBlockCanvas_=null;this.toolbox_&&(this.toolbox_.dispose(),this.toolbox_=null);this.flyout_&&(this.flyout_.dispose(),this.flyout_=null);this.trashcan&&(this.trashcan.dispose(),this.trashcan=null);this.scrollbar&&(this.scrollbar.dispose(),
 this.scrollbar=null);this.zoomControls_&&(this.zoomControls_.dispose(),this.zoomControls_=null);this.audioManager_&&(this.audioManager_.dispose(),this.audioManager_=null);this.grid_&&(this.grid_.dispose(),this.grid_=null);this.toolboxCategoryCallbacks_&&(this.toolboxCategoryCallbacks_=null);this.flyoutButtonCallbacks_&&(this.flyoutButtonCallbacks_=null);this.options.parentWorkspace||goog.dom.removeNode(this.getParentSvg().parentNode);this.resizeHandlerWrapper_&&(Blockly.unbindEvent_(this.resizeHandlerWrapper_),
 this.resizeHandlerWrapper_=null)};Blockly.WorkspaceSvg.prototype.newBlock=function(a,b){return new Blockly.BlockSvg(this,a,b)};Blockly.WorkspaceSvg.prototype.addTrashcan_=function(a){this.trashcan=new Blockly.Trashcan(this);var b=this.trashcan.createDom();this.svgGroup_.insertBefore(b,this.svgBlockCanvas_);return this.trashcan.init(a)};
 Blockly.WorkspaceSvg.prototype.addZoomControls_=function(a){this.zoomControls_=new Blockly.ZoomControls(this);var b=this.zoomControls_.createDom();this.svgGroup_.appendChild(b);return this.zoomControls_.init(a)};
 Blockly.WorkspaceSvg.prototype.addFlyout_=function(a){var b={disabledPatternId:this.options.disabledPatternId,parentWorkspace:this,RTL:this.RTL,oneBasedIndex:this.options.oneBasedIndex,horizontalLayout:this.horizontalLayout,toolboxPosition:this.options.toolboxPosition};this.flyout_=null;this.flyout_=this.horizontalLayout?new Blockly.HorizontalFlyout(b):new Blockly.VerticalFlyout(b);this.flyout_.autoClose=!1;return this.flyout_.createDom(a)};
-Blockly.WorkspaceSvg.prototype.getFlyout_=function(){return this.flyout_?this.flyout_:this.toolbox_?this.toolbox_.flyout_:null};Blockly.WorkspaceSvg.prototype.updateScreenCalculations_=function(){this.updateInverseScreenCTM();this.recordDeleteAreas()};Blockly.WorkspaceSvg.prototype.resizeContents=function(){this.resizesEnabled_&&this.rendered&&(this.scrollbar&&this.scrollbar.resize(),this.updateInverseScreenCTM())};
+Blockly.WorkspaceSvg.prototype.getFlyout_=function(){return this.flyout_?this.flyout_:this.toolbox_?this.toolbox_.flyout_:null};Blockly.WorkspaceSvg.prototype.getToolbox=function(){return this.toolbox_};Blockly.WorkspaceSvg.prototype.updateScreenCalculations_=function(){this.updateInverseScreenCTM();this.recordDeleteAreas()};Blockly.WorkspaceSvg.prototype.resizeContents=function(){this.resizesEnabled_&&this.rendered&&(this.scrollbar&&this.scrollbar.resize(),this.updateInverseScreenCTM())};
 Blockly.WorkspaceSvg.prototype.resize=function(){this.toolbox_&&this.toolbox_.position();this.flyout_&&this.flyout_.position();this.trashcan&&this.trashcan.position();this.zoomControls_&&this.zoomControls_.position();this.scrollbar&&this.scrollbar.resize();this.updateScreenCalculations_()};Blockly.WorkspaceSvg.prototype.updateScreenCalculationsIfScrolled=function(){var a=goog.dom.getDocumentScroll();goog.math.Coordinate.equals(this.lastRecordedPageScroll_,a)||(this.lastRecordedPageScroll_=a,this.updateScreenCalculations_())};
 Blockly.WorkspaceSvg.prototype.getCanvas=function(){return this.svgBlockCanvas_};Blockly.WorkspaceSvg.prototype.getBubbleCanvas=function(){return this.svgBubbleCanvas_};Blockly.WorkspaceSvg.prototype.getParentSvg=function(){if(this.cachedParentSvg_)return this.cachedParentSvg_;for(var a=this.svgGroup_;a;){if("svg"==a.tagName)return this.cachedParentSvg_=a;a=a.parentNode}return null};
 Blockly.WorkspaceSvg.prototype.translate=function(a,b){if(this.useWorkspaceDragSurface_&&this.isDragSurfaceActive_)this.workspaceDragSurface_.translateSurface(a,b);else{var c="translate("+a+","+b+") scale("+this.scale+")";this.svgBlockCanvas_.setAttribute("transform",c);this.svgBubbleCanvas_.setAttribute("transform",c)}this.blockDragSurface_&&this.blockDragSurface_.translateAndScaleGroup(a,b,this.scale)};
 Blockly.WorkspaceSvg.prototype.resetDragSurface=function(){if(this.useWorkspaceDragSurface_){this.isDragSurfaceActive_=!1;var a=this.workspaceDragSurface_.getSurfaceTranslation();this.workspaceDragSurface_.clearAndHide(this.svgGroup_);a="translate("+a.x+","+a.y+") scale("+this.scale+")";this.svgBlockCanvas_.setAttribute("transform",a);this.svgBubbleCanvas_.setAttribute("transform",a)}};
-Blockly.WorkspaceSvg.prototype.setupDragSurface=function(){if(this.useWorkspaceDragSurface_&&!this.isDragSurfaceActive_){this.isDragSurfaceActive_=!0;var a=this.svgBlockCanvas_.previousSibling,b=this.getParentSvg().getAttribute("width"),c=this.getParentSvg().getAttribute("height"),d=Blockly.utils.getRelativeXY(this.svgBlockCanvas_);this.workspaceDragSurface_.setContentsAndShow(this.svgBlockCanvas_,this.svgBubbleCanvas_,a,b,c,this.scale);this.workspaceDragSurface_.translateSurface(d.x,d.y)}};
-Blockly.WorkspaceSvg.prototype.getBlockDragSurface=function(){return this.blockDragSurface_};Blockly.WorkspaceSvg.prototype.getWidth=function(){var a=this.getMetrics();return a?a.viewWidth/this.scale:0};
+Blockly.WorkspaceSvg.prototype.setupDragSurface=function(){if(this.useWorkspaceDragSurface_&&!this.isDragSurfaceActive_){this.isDragSurfaceActive_=!0;var a=this.svgBlockCanvas_.previousSibling,b=parseInt(this.getParentSvg().getAttribute("width"),10),c=parseInt(this.getParentSvg().getAttribute("height"),10),d=Blockly.utils.getRelativeXY(this.svgBlockCanvas_);this.workspaceDragSurface_.setContentsAndShow(this.svgBlockCanvas_,this.svgBubbleCanvas_,a,b,c,this.scale);this.workspaceDragSurface_.translateSurface(d.x,
+d.y)}};Blockly.WorkspaceSvg.prototype.getBlockDragSurface=function(){return this.blockDragSurface_};Blockly.WorkspaceSvg.prototype.getWidth=function(){var a=this.getMetrics();return a?a.viewWidth/this.scale:0};
 Blockly.WorkspaceSvg.prototype.setVisible=function(a){this.scrollbar&&this.scrollbar.setContainerVisible(a);this.getFlyout_()&&this.getFlyout_().setContainerVisible(a);this.getParentSvg().style.display=a?"block":"none";this.toolbox_&&(this.toolbox_.HtmlDiv.style.display=a?"block":"none");a?(this.render(),this.toolbox_&&this.toolbox_.position()):Blockly.hideChaff(!0)};Blockly.WorkspaceSvg.prototype.render=function(){for(var a=this.getAllBlocks(),b=a.length-1;0<=b;b--)a[b].render(!1)};
 Blockly.WorkspaceSvg.prototype.traceOn=function(){console.warn("Deprecated call to traceOn, delete this.")};Blockly.WorkspaceSvg.prototype.highlightBlock=function(a,b){if(void 0===b){for(var c=0,d;d=this.highlightedBlocks_[c];c++)d.setHighlighted(!1);this.highlightedBlocks_.length=0}if(d=a?this.getBlockById(a):null)(c=void 0===b||b)?-1==this.highlightedBlocks_.indexOf(d)&&this.highlightedBlocks_.push(d):goog.array.remove(this.highlightedBlocks_,d),d.setHighlighted(c)};
 Blockly.WorkspaceSvg.prototype.paste=function(a){if(this.rendered&&!(a.getElementsByTagName("block").length>=this.remainingCapacity())){this.currentGesture_&&this.currentGesture_.cancel();Blockly.Events.disable();try{var b=Blockly.Xml.domToBlock(a,this),c=parseInt(a.getAttribute("x"),10),d=parseInt(a.getAttribute("y"),10);if(!isNaN(c)&&!isNaN(d)){this.RTL&&(c=-c);do{a=!1;for(var e=this.getAllBlocks(),f=0,g;g=e[f];f++){var h=g.getRelativeToSurfaceXY();if(1>=Math.abs(c-h.x)&&1>=Math.abs(d-h.y)){a=!0;
-break}}if(!a){var k=b.getConnections_(!1);f=0;for(var n;n=k[f];f++)if(n.closest(Blockly.SNAP_RADIUS,new goog.math.Coordinate(c,d)).connection){a=!0;break}}a&&(c=this.RTL?c-Blockly.SNAP_RADIUS:c+Blockly.SNAP_RADIUS,d+=2*Blockly.SNAP_RADIUS)}while(a);b.moveBy(c,d)}}finally{Blockly.Events.enable()}Blockly.Events.isEnabled()&&!b.isShadow()&&Blockly.Events.fire(new Blockly.Events.BlockCreate(b));b.select()}};
+break}}if(!a){var k=b.getConnections_(!1);f=0;for(var m;m=k[f];f++)if(m.closest(Blockly.SNAP_RADIUS,new goog.math.Coordinate(c,d)).connection){a=!0;break}}a&&(c=this.RTL?c-Blockly.SNAP_RADIUS:c+Blockly.SNAP_RADIUS,d+=2*Blockly.SNAP_RADIUS)}while(a);b.moveBy(c,d)}}finally{Blockly.Events.enable()}Blockly.Events.isEnabled()&&!b.isShadow()&&Blockly.Events.fire(new Blockly.Events.BlockCreate(b));b.select()}};
 Blockly.WorkspaceSvg.prototype.refreshToolboxSelection=function(){var a=this.isFlyout?this.targetWorkspace:this;a&&!a.currentGesture_&&a.toolbox_&&a.toolbox_.flyout_&&a.toolbox_.refreshSelection()};Blockly.WorkspaceSvg.prototype.renameVariableById=function(a,b){Blockly.WorkspaceSvg.superClass_.renameVariableById.call(this,a,b);this.refreshToolboxSelection()};Blockly.WorkspaceSvg.prototype.deleteVariableById=function(a){Blockly.WorkspaceSvg.superClass_.deleteVariableById.call(this,a);this.refreshToolboxSelection()};
-Blockly.WorkspaceSvg.prototype.createVariable=function(a,b,c){a=Blockly.WorkspaceSvg.superClass_.createVariable.call(this,a,b,c);this.refreshToolboxSelection();return a};Blockly.WorkspaceSvg.prototype.recordDeleteAreas=function(){this.deleteAreaTrash_=this.trashcan?this.trashcan.getClientRect():null;this.deleteAreaToolbox_=this.flyout_?this.flyout_.getClientRect():this.toolbox_?this.toolbox_.getClientRect():null};
+Blockly.WorkspaceSvg.prototype.createVariable=function(a,b,c){a=Blockly.WorkspaceSvg.superClass_.createVariable.call(this,a,b,c);this.refreshToolboxSelection();return a};Blockly.WorkspaceSvg.prototype.recordDeleteAreas=function(){this.deleteAreaTrash_=this.trashcan&&this.svgGroup_.parentNode?this.trashcan.getClientRect():null;this.deleteAreaToolbox_=this.flyout_?this.flyout_.getClientRect():this.toolbox_?this.toolbox_.getClientRect():null};
 Blockly.WorkspaceSvg.prototype.isDeleteArea=function(a){a=new goog.math.Coordinate(a.clientX,a.clientY);return this.deleteAreaTrash_&&this.deleteAreaTrash_.contains(a)?Blockly.DELETE_AREA_TRASH:this.deleteAreaToolbox_&&this.deleteAreaToolbox_.contains(a)?Blockly.DELETE_AREA_TOOLBOX:Blockly.DELETE_AREA_NONE};Blockly.WorkspaceSvg.prototype.onMouseDown_=function(a){var b=this.getGesture(a);b&&b.handleWsStart(a,this)};
 Blockly.WorkspaceSvg.prototype.startDrag=function(a,b){var c=Blockly.utils.mouseToSvg(a,this.getParentSvg(),this.getInverseScreenCTM());c.x/=this.scale;c.y/=this.scale;this.dragDeltaXY_=goog.math.Coordinate.difference(b,c)};Blockly.WorkspaceSvg.prototype.moveDrag=function(a){a=Blockly.utils.mouseToSvg(a,this.getParentSvg(),this.getInverseScreenCTM());a.x/=this.scale;a.y/=this.scale;return goog.math.Coordinate.sum(this.dragDeltaXY_,a)};
 Blockly.WorkspaceSvg.prototype.isDragging=function(){return null!=this.currentGesture_&&this.currentGesture_.isDragging()};Blockly.WorkspaceSvg.prototype.isDraggable=function(){return!!this.scrollbar};Blockly.WorkspaceSvg.prototype.onMouseWheel_=function(a){this.currentGesture_&&this.currentGesture_.cancel();var b=-a.deltaY/50,c=Blockly.utils.mouseToSvg(a,this.getParentSvg(),this.getInverseScreenCTM());this.zoom(c.x,c.y,b);a.preventDefault()};
 Blockly.WorkspaceSvg.prototype.getBlocksBoundingBox=function(){var a=this.getTopBlocks(!1);if(!a.length)return{x:0,y:0,width:0,height:0};for(var b=a[0].getBoundingRectangle(),c=1;c<a.length;c++){var d=a[c].getBoundingRectangle();d.topLeft.x<b.topLeft.x&&(b.topLeft.x=d.topLeft.x);d.bottomRight.x>b.bottomRight.x&&(b.bottomRight.x=d.bottomRight.x);d.topLeft.y<b.topLeft.y&&(b.topLeft.y=d.topLeft.y);d.bottomRight.y>b.bottomRight.y&&(b.bottomRight.y=d.bottomRight.y)}return{x:b.topLeft.x,y:b.topLeft.y,width:b.bottomRight.x-
 b.topLeft.x,height:b.bottomRight.y-b.topLeft.y}};Blockly.WorkspaceSvg.prototype.cleanUp=function(){this.setResizesEnabled(!1);Blockly.Events.setGroup(!0);for(var a=this.getTopBlocks(!0),b=0,c=0,d;d=a[c];c++){var e=d.getRelativeToSurfaceXY();d.moveBy(-e.x,b-e.y);d.snapToGrid();b=d.getRelativeToSurfaceXY().y+d.getHeightWidth().height+Blockly.BlockSvg.MIN_BLOCK_Y}Blockly.Events.setGroup(!1);this.setResizesEnabled(!0)};
-Blockly.WorkspaceSvg.prototype.showContextMenu_=function(a){function b(a){if(a.isDeletable())m=m.concat(a.getDescendants());else{a=a.getChildren();for(var c=0;c<a.length;c++)b(a[c])}}function c(){Blockly.Events.setGroup(f);var a=m.shift();a&&(a.workspace?(a.dispose(!1,!0),setTimeout(c,10)):c());Blockly.Events.setGroup(!1)}if(!this.options.readOnly&&!this.isFlyout){var d=[],e=this.getTopBlocks(!0),f=Blockly.utils.genUid(),g=this,h={};h.text=Blockly.Msg.UNDO;h.enabled=0<this.undoStack_.length;h.callback=
-this.undo.bind(this,!1);d.push(h);h={};h.text=Blockly.Msg.REDO;h.enabled=0<this.redoStack_.length;h.callback=this.undo.bind(this,!0);d.push(h);this.scrollbar&&(h={},h.text=Blockly.Msg.CLEAN_UP,h.enabled=1<e.length,h.callback=this.cleanUp.bind(this),d.push(h));if(this.options.collapse){for(var k=h=!1,n=0;n<e.length;n++)for(var p=e[n];p;)p.isCollapsed()?h=!0:k=!0,p=p.getNextBlock();var l=function(a){for(var b=0,c=0;c<e.length;c++)for(var d=e[c];d;)setTimeout(d.setCollapsed.bind(d,a),b),d=d.getNextBlock(),
-b+=10};k={enabled:k};k.text=Blockly.Msg.COLLAPSE_ALL;k.callback=function(){l(!0)};d.push(k);h={enabled:h};h.text=Blockly.Msg.EXPAND_ALL;h.callback=function(){l(!1)};d.push(h)}var m=[];for(n=0;n<e.length;n++)b(e[n]);h={text:1==m.length?Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(m.length)),enabled:0<m.length,callback:function(){g.currentGesture_&&g.currentGesture_.cancel();2>m.length?c():Blockly.confirm(Blockly.Msg.DELETE_ALL_BLOCKS.replace("%1",m.length),function(a){a&&
-c()})}};d.push(h);Blockly.ContextMenu.show(a,d,this.RTL)}};
+Blockly.WorkspaceSvg.prototype.showContextMenu_=function(a){function b(a){if(a.isDeletable())n=n.concat(a.getDescendants());else{a=a.getChildren();for(var c=0;c<a.length;c++)b(a[c])}}function c(){Blockly.Events.setGroup(f);var a=n.shift();a&&(a.workspace?(a.dispose(!1,!0),setTimeout(c,10)):c());Blockly.Events.setGroup(!1)}if(!this.options.readOnly&&!this.isFlyout){var d=[],e=this.getTopBlocks(!0),f=Blockly.utils.genUid(),g=this,h={};h.text=Blockly.Msg.UNDO;h.enabled=0<this.undoStack_.length;h.callback=
+this.undo.bind(this,!1);d.push(h);h={};h.text=Blockly.Msg.REDO;h.enabled=0<this.redoStack_.length;h.callback=this.undo.bind(this,!0);d.push(h);this.scrollbar&&(h={},h.text=Blockly.Msg.CLEAN_UP,h.enabled=1<e.length,h.callback=this.cleanUp.bind(this),d.push(h));if(this.options.collapse){for(var k=h=!1,m=0;m<e.length;m++)for(var p=e[m];p;)p.isCollapsed()?h=!0:k=!0,p=p.getNextBlock();var l=function(a){for(var b=0,c=0;c<e.length;c++)for(var d=e[c];d;)setTimeout(d.setCollapsed.bind(d,a),b),d=d.getNextBlock(),
+b+=10};k={enabled:k};k.text=Blockly.Msg.COLLAPSE_ALL;k.callback=function(){l(!0)};d.push(k);h={enabled:h};h.text=Blockly.Msg.EXPAND_ALL;h.callback=function(){l(!1)};d.push(h)}var n=[];for(m=0;m<e.length;m++)b(e[m]);h={text:1==n.length?Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(n.length)),enabled:0<n.length,callback:function(){g.currentGesture_&&g.currentGesture_.cancel();2>n.length?c():Blockly.confirm(Blockly.Msg.DELETE_ALL_BLOCKS.replace("%1",n.length),function(a){a&&
+c()})}};d.push(h);this.configureContextMenu&&this.configureContextMenu(d);Blockly.ContextMenu.show(a,d,this.RTL)}};
 Blockly.WorkspaceSvg.prototype.updateToolbox=function(a){if(a=Blockly.Options.parseToolboxTree(a)){if(!this.options.languageTree)throw"Existing toolbox is null.  Can't create new toolbox.";if(a.getElementsByTagName("category").length){if(!this.toolbox_)throw"Existing toolbox has no categories.  Can't change mode.";this.options.languageTree=a;this.toolbox_.populate_(a);this.toolbox_.addColour_()}else{if(!this.flyout_)throw"Existing toolbox has categories.  Can't change mode.";this.options.languageTree=
 a;this.flyout_.show(a.childNodes)}}else if(this.options.languageTree)throw"Can't nullify an existing toolbox.";};Blockly.WorkspaceSvg.prototype.markFocused=function(){this.options.parentWorkspace?this.options.parentWorkspace.markFocused():(Blockly.mainWorkspace=this,this.setBrowserFocus())};Blockly.WorkspaceSvg.prototype.setBrowserFocus=function(){document.activeElement&&document.activeElement.blur();try{this.getParentSvg().focus()}catch(a){try{this.getParentSvg().parentNode.setActive()}catch(b){this.getParentSvg().parentNode.focus()}}};
 Blockly.WorkspaceSvg.prototype.zoom=function(a,b,c){var d=this.options.zoomOptions.scaleSpeed,e=this.getMetrics(),f=this.getParentSvg().createSVGPoint();f.x=a;f.y=b;f=f.matrixTransform(this.getCanvas().getCTM().inverse());a=f.x;b=f.y;f=this.getCanvas();d=Math.pow(d,c);c=this.scale*d;c>this.options.zoomOptions.maxScale?d=this.options.zoomOptions.maxScale/this.scale:c<this.options.zoomOptions.minScale&&(d=this.options.zoomOptions.minScale/this.scale);this.scale!=c&&(this.scrollbar&&(a=f.getCTM().translate(a*
@@ -1242,7 +1251,7 @@ Blockly.WorkspaceSvg.setTopLevelWorkspaceMetrics_=function(a){if(!this.scrollbar
 Blockly.WorkspaceSvg.prototype.setResizesEnabled=function(a){var b=!this.resizesEnabled_&&a;this.resizesEnabled_=a;b&&this.resizeContents()};Blockly.WorkspaceSvg.prototype.clear=function(){this.setResizesEnabled(!1);Blockly.WorkspaceSvg.superClass_.clear.call(this);this.setResizesEnabled(!0)};Blockly.WorkspaceSvg.prototype.registerButtonCallback=function(a,b){goog.asserts.assert(goog.isFunction(b),"Button callbacks must be functions.");this.flyoutButtonCallbacks_[a]=b};
 Blockly.WorkspaceSvg.prototype.getButtonCallback=function(a){return(a=this.flyoutButtonCallbacks_[a])?a:null};Blockly.WorkspaceSvg.prototype.removeButtonCallback=function(a){this.flyoutButtonCallbacks_[a]=null};Blockly.WorkspaceSvg.prototype.registerToolboxCategoryCallback=function(a,b){goog.asserts.assert(goog.isFunction(b),"Toolbox category callbacks must be functions.");this.toolboxCategoryCallbacks_[a]=b};
 Blockly.WorkspaceSvg.prototype.getToolboxCategoryCallback=function(a){return(a=this.toolboxCategoryCallbacks_[a])?a:null};Blockly.WorkspaceSvg.prototype.removeToolboxCategoryCallback=function(a){this.toolboxCategoryCallbacks_[a]=null};
-Blockly.WorkspaceSvg.prototype.getGesture=function(a){var b="mousedown"==a.type||"touchstart"==a.type||"pointerdown"==a.type,c=this.currentGesture_;return c?b&&c.hasStarted()?(console.warn("tried to start the same gesture twice"),c.cancel(),null):c:b?this.currentGesture_=new Blockly.Gesture(a,this):null};Blockly.WorkspaceSvg.prototype.clearGesture=function(){this.currentGesture_=null};Blockly.WorkspaceSvg.prototype.cancelCurrentGesture=function(){this.currentGesture_&&this.currentGesture_.cancel()};
+Blockly.WorkspaceSvg.prototype.getGesture=function(a){var b="mousedown"==a.type||"touchstart"==a.type||"pointerdown"==a.type,c=this.currentGesture_;return c?b&&c.hasStarted()?(console.warn("tried to start the same gesture twice"),c.cancel(),null):c:b?this.currentGesture_=new Blockly.TouchGesture(a,this):null};Blockly.WorkspaceSvg.prototype.clearGesture=function(){this.currentGesture_=null};Blockly.WorkspaceSvg.prototype.cancelCurrentGesture=function(){this.currentGesture_&&this.currentGesture_.cancel()};
 Blockly.WorkspaceSvg.prototype.getAudioManager=function(){return this.audioManager_};Blockly.WorkspaceSvg.prototype.getGrid=function(){return this.grid_};Blockly.WorkspaceSvg.prototype.setVisible=Blockly.WorkspaceSvg.prototype.setVisible;Blockly.Mutator=function(a){Blockly.Mutator.superClass_.constructor.call(this,null);this.quarkNames_=a};goog.inherits(Blockly.Mutator,Blockly.Icon);Blockly.Mutator.prototype.workspaceWidth_=0;Blockly.Mutator.prototype.workspaceHeight_=0;
 Blockly.Mutator.prototype.drawIcon_=function(a){Blockly.utils.createSvgElement("rect",{"class":"blocklyIconShape",rx:"4",ry:"4",height:"16",width:"16"},a);Blockly.utils.createSvgElement("path",{"class":"blocklyIconSymbol",d:"m4.203,7.296 0,1.368 -0.92,0.677 -0.11,0.41 0.9,1.559 0.41,0.11 1.043,-0.457 1.187,0.683 0.127,1.134 0.3,0.3 1.8,0 0.3,-0.299 0.127,-1.138 1.185,-0.682 1.046,0.458 0.409,-0.11 0.9,-1.559 -0.11,-0.41 -0.92,-0.677 0,-1.366 0.92,-0.677 0.11,-0.41 -0.9,-1.559 -0.409,-0.109 -1.046,0.458 -1.185,-0.682 -0.127,-1.138 -0.3,-0.299 -1.8,0 -0.3,0.3 -0.126,1.135 -1.187,0.682 -1.043,-0.457 -0.41,0.11 -0.899,1.559 0.108,0.409z"},a);
 Blockly.utils.createSvgElement("circle",{"class":"blocklyIconShape",r:"2.7",cx:"8",cy:"8"},a)};Blockly.Mutator.prototype.iconClick_=function(a){this.block_.isEditable()&&Blockly.Icon.prototype.iconClick_.call(this,a)};
@@ -1251,9 +1260,9 @@ Blockly.TOOLBOX_AT_LEFT,horizontalLayout:!1,getMetrics:this.getFlyoutMetrics_.bi
 Blockly.Mutator.prototype.updateEditable=function(){this.block_.isInFlyout||(this.block_.isEditable()?this.iconGroup_&&Blockly.utils.removeClass(this.iconGroup_,"blocklyIconGroupReadonly"):(this.setVisible(!1),this.iconGroup_&&Blockly.utils.addClass(this.iconGroup_,"blocklyIconGroupReadonly")));Blockly.Icon.prototype.updateEditable.call(this)};
 Blockly.Mutator.prototype.resizeBubble_=function(){var a=2*Blockly.Bubble.BORDER_WIDTH,b=this.workspace_.getCanvas().getBBox();var c=this.block_.RTL?-b.x:b.width+b.x;b=b.height+3*a;if(this.workspace_.flyout_){var d=this.workspace_.flyout_.getMetrics_();b=Math.max(b,d.contentHeight+20)}c+=3*a;if(Math.abs(this.workspaceWidth_-c)>a||Math.abs(this.workspaceHeight_-b)>a)this.workspaceWidth_=c,this.workspaceHeight_=b,this.bubble_.setBubbleSize(c+a,b+a),this.svgDialog_.setAttribute("width",this.workspaceWidth_),
 this.svgDialog_.setAttribute("height",this.workspaceHeight_);this.block_.RTL&&(a="translate("+this.workspaceWidth_+",0)",this.workspace_.getCanvas().setAttribute("transform",a));this.workspace_.resize()};
-Blockly.Mutator.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"mutatorOpen",!a,a)),a){this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconXY_,null,null);if(a=this.workspace_.options.languageTree)this.workspace_.flyout_.init(this.workspace_),this.workspace_.flyout_.show(a.childNodes);this.rootBlock_=this.block_.decompose(this.workspace_);a=this.rootBlock_.getDescendants();for(var b=
-0,c;c=a[b];b++)c.render();this.rootBlock_.setMovable(!1);this.rootBlock_.setDeletable(!1);this.workspace_.flyout_?(a=2*this.workspace_.flyout_.CORNER_RADIUS,b=this.workspace_.flyout_.width_+a):b=a=16;this.block_.RTL&&(b=-b);this.rootBlock_.moveBy(b,a);if(this.block_.saveConnections){var d=this;this.block_.saveConnections(this.rootBlock_);this.sourceListener_=function(){d.block_.saveConnections(d.rootBlock_)};this.block_.workspace.addChangeListener(this.sourceListener_)}this.resizeBubble_();this.workspace_.addChangeListener(this.workspaceChanged_.bind(this));
-this.updateColour()}else this.svgDialog_=null,this.workspace_.dispose(),this.rootBlock_=this.workspace_=null,this.bubble_.dispose(),this.bubble_=null,this.workspaceHeight_=this.workspaceWidth_=0,this.sourceListener_&&(this.block_.workspace.removeChangeListener(this.sourceListener_),this.sourceListener_=null)};
+Blockly.Mutator.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"mutatorOpen",!a,a)),a){this.bubble_=new Blockly.Bubble(this.block_.workspace,this.createEditor_(),this.block_.svgPath_,this.iconXY_,null,null);this.bubble_.setSvgId(this.block_.id);if(a=this.workspace_.options.languageTree)this.workspace_.flyout_.init(this.workspace_),this.workspace_.flyout_.show(a.childNodes);this.rootBlock_=this.block_.decompose(this.workspace_);a=this.rootBlock_.getDescendants();
+for(var b=0,c;c=a[b];b++)c.render();this.rootBlock_.setMovable(!1);this.rootBlock_.setDeletable(!1);this.workspace_.flyout_?(a=2*this.workspace_.flyout_.CORNER_RADIUS,b=this.workspace_.flyout_.width_+a):b=a=16;this.block_.RTL&&(b=-b);this.rootBlock_.moveBy(b,a);if(this.block_.saveConnections){var d=this;this.block_.saveConnections(this.rootBlock_);this.sourceListener_=function(){d.block_.saveConnections(d.rootBlock_)};this.block_.workspace.addChangeListener(this.sourceListener_)}this.resizeBubble_();
+this.workspace_.addChangeListener(this.workspaceChanged_.bind(this));this.updateColour()}else this.svgDialog_=null,this.workspace_.dispose(),this.rootBlock_=this.workspace_=null,this.bubble_.dispose(),this.bubble_=null,this.workspaceHeight_=this.workspaceWidth_=0,this.sourceListener_&&(this.block_.workspace.removeChangeListener(this.sourceListener_),this.sourceListener_=null)};
 Blockly.Mutator.prototype.workspaceChanged_=function(){if(!this.workspace_.isDragging())for(var a=this.workspace_.getTopBlocks(!1),b=0,c;c=a[b];b++){var d=c.getRelativeToSurfaceXY(),e=c.getHeightWidth();20>d.y+e.height&&c.moveBy(0,20-e.height-d.y)}if(this.rootBlock_.workspace==this.workspace_){Blockly.Events.setGroup(!0);c=this.block_;a=(a=c.mutationToDom())&&Blockly.Xml.domToText(a);b=c.rendered;c.rendered=!1;c.compose(this.rootBlock_);c.rendered=b;c.initSvg();b=(b=c.mutationToDom())&&Blockly.Xml.domToText(b);
 if(a!=b){Blockly.Events.fire(new Blockly.Events.BlockChange(c,"mutation",null,a,b));var f=Blockly.Events.getGroup();setTimeout(function(){Blockly.Events.setGroup(f);c.bumpNeighbours_();Blockly.Events.setGroup(!1)},Blockly.BUMP_DELAY)}c.rendered&&c.render();this.workspace_.isDragging()||this.resizeBubble_();Blockly.Events.setGroup(!1)}};Blockly.Mutator.prototype.getFlyoutMetrics_=function(){return{viewHeight:this.workspaceHeight_,viewWidth:this.workspaceWidth_,absoluteTop:0,absoluteLeft:0}};
 Blockly.Mutator.prototype.dispose=function(){this.block_.mutator=null;Blockly.Icon.prototype.dispose.call(this)};Blockly.Mutator.reconnect=function(a,b,c){if(!a||!a.getSourceBlock().workspace)return!1;c=b.getInput(c).connection;var d=a.targetBlock();return d&&d!=b||c.targetConnection==a?!1:(c.isConnected()&&c.disconnect(),c.connect(a),!0)};
@@ -1290,8 +1299,8 @@ Blockly.Input.prototype.setVisible=function(a){var b=[];if(this.visible_==a)retu
 Blockly.Input.prototype.setAlign=function(a){this.align=a;this.sourceBlock_.rendered&&this.sourceBlock_.render();return this};Blockly.Input.prototype.init=function(){if(this.sourceBlock_.workspace.rendered)for(var a=0;a<this.fieldRow.length;a++)this.fieldRow[a].init()};Blockly.Input.prototype.dispose=function(){for(var a=0,b;b=this.fieldRow[a];a++)b.dispose();this.connection&&this.connection.dispose();this.sourceBlock_=null};Blockly.Warning=function(a){Blockly.Warning.superClass_.constructor.call(this,a);this.createIcon();this.text_={}};goog.inherits(Blockly.Warning,Blockly.Icon);Blockly.Warning.prototype.collapseHidden=!1;
 Blockly.Warning.prototype.drawIcon_=function(a){Blockly.utils.createSvgElement("path",{"class":"blocklyIconShape",d:"M2,15Q-1,15 0.5,12L6.5,1.7Q8,-1 9.5,1.7L15.5,12Q17,15 14,15z"},a);Blockly.utils.createSvgElement("path",{"class":"blocklyIconSymbol",d:"m7,4.8v3.16l0.27,2.27h1.46l0.27,-2.27v-3.16z"},a);Blockly.utils.createSvgElement("rect",{"class":"blocklyIconSymbol",x:"7",y:"11",height:"2",width:"2"},a)};
 Blockly.Warning.textToDom_=function(a){var b=Blockly.utils.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.utils.createSvgElement("tspan",{dy:"1em",x:Blockly.Bubble.BORDER_WIDTH},b),e=document.createTextNode(a[c]);d.appendChild(e)}return b};
-Blockly.Warning.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"warningOpen",!a,a)),a){a=Blockly.Warning.textToDom_(this.getText());this.bubble_=new Blockly.Bubble(this.block_.workspace,a,this.block_.svgPath_,this.iconXY_,null,null);if(this.block_.RTL)for(var b=a.getBBox().width,c=0,d;d=a.childNodes[c];c++)d.setAttribute("text-anchor","end"),d.setAttribute("x",b+Blockly.Bubble.BORDER_WIDTH);this.updateColour();a=this.bubble_.getBubbleSize();
-this.bubble_.setBubbleSize(a.width,a.height)}else this.bubble_.dispose(),this.body_=this.bubble_=null};Blockly.Warning.prototype.bodyFocus_=function(a){this.bubble_.promote_()};Blockly.Warning.prototype.setText=function(a,b){this.text_[b]!=a&&(a?this.text_[b]=a:delete this.text_[b],this.isVisible()&&(this.setVisible(!1),this.setVisible(!0)))};Blockly.Warning.prototype.getText=function(){var a=[],b;for(b in this.text_)a.push(this.text_[b]);return a.join("\n")};
+Blockly.Warning.prototype.setVisible=function(a){if(a!=this.isVisible())if(Blockly.Events.fire(new Blockly.Events.Ui(this.block_,"warningOpen",!a,a)),a){a=Blockly.Warning.textToDom_(this.getText());this.bubble_=new Blockly.Bubble(this.block_.workspace,a,this.block_.svgPath_,this.iconXY_,null,null);this.bubble_.setSvgId(this.block_.id);if(this.block_.RTL)for(var b=a.getBBox().width,c=0,d;d=a.childNodes[c];c++)d.setAttribute("text-anchor","end"),d.setAttribute("x",b+Blockly.Bubble.BORDER_WIDTH);this.updateColour();
+a=this.bubble_.getBubbleSize();this.bubble_.setBubbleSize(a.width,a.height)}else this.bubble_.dispose(),this.body_=this.bubble_=null};Blockly.Warning.prototype.bodyFocus_=function(a){this.bubble_.promote_()};Blockly.Warning.prototype.setText=function(a,b){this.text_[b]!=a&&(a?this.text_[b]=a:delete this.text_[b],this.isVisible()&&(this.setVisible(!1),this.setVisible(!0)))};Blockly.Warning.prototype.getText=function(){var a=[],b;for(b in this.text_)a.push(this.text_[b]);return a.join("\n")};
 Blockly.Warning.prototype.dispose=function(){this.block_.warning=null;Blockly.Icon.prototype.dispose.call(this)};Blockly.Block=function(a,b,c){"undefined"!==typeof Blockly.Generator.prototype[b]&&console.warn('FUTURE ERROR: Block prototypeName "'+b+'" conflicts with Blockly.Generator members. Registering Generators for this block type will incur errors.\nThis name will be DISALLOWED (throwing an error) in future versions of Blockly.');this.id=c&&!a.getBlockById(c)?c:Blockly.utils.genUid();a.blockDB_[this.id]=this;this.previousConnection=this.nextConnection=this.outputConnection=null;this.inputList=[];this.inputsInline=
 void 0;this.disabled=!1;this.tooltip="";this.contextMenu=!0;this.parentBlock_=null;this.childBlocks_=[];this.editable_=this.movable_=this.deletable_=!0;this.collapsed_=this.isShadow_=!1;this.comment=null;this.xy_=new goog.math.Coordinate(0,0);this.workspace=a;this.isInFlyout=a.isFlyout;this.isInMutator=a.isMutator;this.RTL=a.RTL;b&&(this.type=b,c=Blockly.Blocks[b],goog.asserts.assertObject(c,'Error: Unknown block type "%s".',b),goog.mixin(this,c));a.addTopBlock(this);goog.isFunction(this.init)&&this.init();
 this.inputsInlineDefault=this.inputsInline;if(Blockly.Events.isEnabled()){(a=Blockly.Events.getGroup())||Blockly.Events.setGroup(!0);try{Blockly.Events.fire(new Blockly.Events.BlockCreate(this))}finally{a||Blockly.Events.setGroup(!1)}}goog.isFunction(this.onchange)&&this.setOnChange(this.onchange)};Blockly.Block.obtain=function(a,b){console.warn("Deprecated call to Blockly.Block.obtain, use workspace.newBlock instead.");return a.newBlock(b)};Blockly.Block.prototype.data=null;
@@ -1346,7 +1355,7 @@ Blockly.ContextMenu.createWidget_=function(a){a.render(Blockly.WidgetDiv.DIV);va
 Blockly.ContextMenu.callbackFactory=function(a,b){return function(){Blockly.Events.disable();try{var c=Blockly.Xml.domToBlock(b,a.workspace),d=a.getRelativeToSurfaceXY();d.x=a.RTL?d.x-Blockly.SNAP_RADIUS:d.x+Blockly.SNAP_RADIUS;d.y+=2*Blockly.SNAP_RADIUS;c.moveBy(d.x,d.y)}finally{Blockly.Events.enable()}Blockly.Events.isEnabled()&&!c.isShadow()&&Blockly.Events.fire(new Blockly.Events.BlockCreate(c));c.select()}};
 Blockly.ContextMenu.blockDeleteOption=function(a){var b=a.getDescendants(!0).length,c=a.getNextBlock();c&&(b-=c.getDescendants(!0).length);return{text:1==b?Blockly.Msg.DELETE_BLOCK:Blockly.Msg.DELETE_X_BLOCKS.replace("%1",String(b)),enabled:!0,callback:function(){Blockly.Events.setGroup(!0);a.dispose(!0,!0);Blockly.Events.setGroup(!1)}}};Blockly.ContextMenu.blockHelpOption=function(a){return{enabled:!(goog.isFunction(a.helpUrl)?!a.helpUrl():!a.helpUrl),text:Blockly.Msg.HELP,callback:function(){a.showHelp_()}}};
 Blockly.ContextMenu.blockDuplicateOption=function(a){var b=!0;a.getDescendants().length>a.workspace.remainingCapacity()&&(b=!1);return{text:Blockly.Msg.DUPLICATE_BLOCK,enabled:b,callback:function(){Blockly.duplicate_(a)}}};Blockly.ContextMenu.blockCommentOption=function(a){var b={enabled:!goog.userAgent.IE};a.comment?(b.text=Blockly.Msg.REMOVE_COMMENT,b.callback=function(){a.setCommentText(null)}):(b.text=Blockly.Msg.ADD_COMMENT,b.callback=function(){a.setCommentText("")});return b};Blockly.BlockSvg=function(a,b,c){this.svgGroup_=Blockly.utils.createSvgElement("g",{},null);this.svgGroup_.translate_="";this.svgPathDark_=Blockly.utils.createSvgElement("path",{"class":"blocklyPathDark",transform:"translate(1,1)"},this.svgGroup_);this.svgPath_=Blockly.utils.createSvgElement("path",{"class":"blocklyPath"},this.svgGroup_);this.svgPathLight_=Blockly.utils.createSvgElement("path",{"class":"blocklyPathLight"},this.svgGroup_);this.svgPath_.tooltip=this;this.rendered=!1;this.useDragSurface_=
-Blockly.utils.is3dSupported()&&!!a.blockDragSurface_;Blockly.Tooltip.bindMouseEvents(this.svgPath_);Blockly.BlockSvg.superClass_.constructor.call(this,a,b,c)};goog.inherits(Blockly.BlockSvg,Blockly.Block);Blockly.BlockSvg.prototype.height=0;Blockly.BlockSvg.prototype.width=0;Blockly.BlockSvg.prototype.dragStartXY_=null;Blockly.BlockSvg.prototype.warningTextDb_=null;Blockly.BlockSvg.INLINE=-1;
+Blockly.utils.is3dSupported()&&!!a.blockDragSurface_;Blockly.Tooltip.bindMouseEvents(this.svgPath_);Blockly.BlockSvg.superClass_.constructor.call(this,a,b,c);this.svgGroup_.dataset&&(this.svgGroup_.dataset.id=this.id)};goog.inherits(Blockly.BlockSvg,Blockly.Block);Blockly.BlockSvg.prototype.height=0;Blockly.BlockSvg.prototype.width=0;Blockly.BlockSvg.prototype.dragStartXY_=null;Blockly.BlockSvg.prototype.warningTextDb_=null;Blockly.BlockSvg.INLINE=-1;
 Blockly.BlockSvg.prototype.initSvg=function(){goog.asserts.assert(this.workspace.rendered,"Workspace is headless.");for(var a=0,b;b=this.inputList[a];a++)b.init();b=this.getIcons();for(a=0;a<b.length;a++)b[a].createIcon();this.updateColour();this.updateMovable();this.workspace.options.readOnly||this.eventsInit_||Blockly.bindEventWithChecks_(this.getSvgRoot(),"mousedown",this,this.onMouseDown_);this.eventsInit_=!0;this.getSvgRoot().parentNode||this.workspace.getCanvas().appendChild(this.getSvgRoot())};
 Blockly.BlockSvg.prototype.select=function(){if(this.isShadow()&&this.getParent())this.getParent().select();else if(Blockly.selected!=this){var a=null;if(Blockly.selected){a=Blockly.selected.id;Blockly.Events.disable();try{Blockly.selected.unselect()}finally{Blockly.Events.enable()}}a=new Blockly.Events.Ui(null,"selected",a,this.id);a.workspaceId=this.workspace.id;Blockly.Events.fire(a);Blockly.selected=this;this.addSelect()}};
 Blockly.BlockSvg.prototype.unselect=function(){if(Blockly.selected==this){var a=new Blockly.Events.Ui(null,"selected",this.id,null);a.workspaceId=this.workspace.id;Blockly.Events.fire(a);Blockly.selected=null;this.removeSelect()}};Blockly.BlockSvg.prototype.mutator=null;Blockly.BlockSvg.prototype.comment=null;Blockly.BlockSvg.prototype.warning=null;
@@ -1401,10 +1410,10 @@ Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL="a "+Blockly.BlockSvg.CORNE
 Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR="a "+(Blockly.BlockSvg.CORNER_RADIUS+.5)+","+(Blockly.BlockSvg.CORNER_RADIUS+.5)+" 0 0,0 "+(Blockly.BlockSvg.CORNER_RADIUS-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)+","+(Blockly.BlockSvg.DISTANCE_45_OUTSIDE+.5);Blockly.BlockSvg.prototype.getHeightWidth=function(){var a=this.height,b=this.width,c=this.getNextBlock();c?(c=c.getHeightWidth(),a+=c.height-4,b=Math.max(b,c.width)):this.nextConnection||this.outputConnection||(a+=2);return{height:a,width:b}};
 Blockly.BlockSvg.prototype.render=function(a){Blockly.Field.startCache();this.rendered=!0;var b=Blockly.BlockSvg.SEP_SPACE_X;this.RTL&&(b=-b);for(var c=this.getIcons(),d=0;d<c.length;d++)b=c[d].renderIcon(b);b+=this.RTL?Blockly.BlockSvg.SEP_SPACE_X:-Blockly.BlockSvg.SEP_SPACE_X;c=this.renderCompute_(b);this.renderDraw_(b,c);this.renderMoveConnections_();!1!==a&&((a=this.getParent())?a.render(!0):this.workspace.resizeContents());Blockly.Field.stopCache()};
 Blockly.BlockSvg.prototype.renderFields_=function(a,b,c){c+=Blockly.BlockSvg.INLINE_PADDING_Y;this.RTL&&(b=-b);for(var d=0,e;e=a[d];d++){var f=e.getSvgRoot();f&&(this.RTL?(b-=e.renderSep+e.renderWidth,f.setAttribute("transform","translate("+b+","+c+")"),e.renderWidth&&(b-=Blockly.BlockSvg.SEP_SPACE_X)):(f.setAttribute("transform","translate("+(b+e.renderSep)+","+c+")"),e.renderWidth&&(b+=e.renderSep+e.renderWidth+Blockly.BlockSvg.SEP_SPACE_X)))}return this.RTL?-b:b};
-Blockly.BlockSvg.prototype.renderCompute_=function(a){var b=this.inputList,c=[];c.rightEdge=a+2*Blockly.BlockSvg.SEP_SPACE_X;if(this.previousConnection||this.nextConnection)c.rightEdge=Math.max(c.rightEdge,Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.SEP_SPACE_X);for(var d=0,e=0,f=!1,g=!1,h=!1,k=void 0,n=this.getInputsInline()&&!this.isCollapsed(),p=0,l;l=b[p];p++)if(l.isVisible()){if(n&&k&&k!=Blockly.NEXT_STATEMENT&&l.type!=Blockly.NEXT_STATEMENT)var m=c[c.length-1];else k=l.type,m=[],m.type=n&&
-l.type!=Blockly.NEXT_STATEMENT?Blockly.BlockSvg.INLINE:l.type,m.height=0,c.push(m);m.push(l);l.renderHeight=Blockly.BlockSvg.MIN_BLOCK_Y;l.renderWidth=n&&l.type==Blockly.INPUT_VALUE?Blockly.BlockSvg.TAB_WIDTH+1.25*Blockly.BlockSvg.SEP_SPACE_X:0;if(l.connection&&l.connection.isConnected()){var q=l.connection.targetBlock().getHeightWidth();l.renderHeight=Math.max(l.renderHeight,q.height);l.renderWidth=Math.max(l.renderWidth,q.width)}n||p!=b.length-1?!n&&l.type==Blockly.INPUT_VALUE&&b[p+1]&&b[p+1].type==
-Blockly.NEXT_STATEMENT&&l.renderHeight--:l.renderHeight--;m.height=Math.max(m.height,l.renderHeight);l.fieldWidth=0;1==c.length&&(l.fieldWidth+=this.RTL?-a:a);q=!1;for(var t=0,r;r=l.fieldRow[t];t++){0!=t&&(l.fieldWidth+=Blockly.BlockSvg.SEP_SPACE_X);var u=r.getSize();r.renderWidth=u.width;r.renderSep=q&&r.EDITABLE?Blockly.BlockSvg.SEP_SPACE_X:0;l.fieldWidth+=r.renderWidth+r.renderSep;m.height=Math.max(m.height,u.height);q=r.EDITABLE}m.type!=Blockly.BlockSvg.INLINE&&(m.type==Blockly.NEXT_STATEMENT?
-(g=!0,e=Math.max(e,l.fieldWidth)):(m.type==Blockly.INPUT_VALUE?f=!0:m.type==Blockly.DUMMY_INPUT&&(h=!0),d=Math.max(d,l.fieldWidth)))}for(a=0;m=c[a];a++)if(m.thicker=!1,m.type==Blockly.BlockSvg.INLINE)for(b=0;l=m[b];b++)if(l.type==Blockly.INPUT_VALUE){m.height+=2*Blockly.BlockSvg.INLINE_PADDING_Y;m.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.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,m=this.getInputsInline()&&!this.isCollapsed(),p=0,l;l=b[p];p++)if(l.isVisible()){if(m&&k&&k!=Blockly.NEXT_STATEMENT&&l.type!=Blockly.NEXT_STATEMENT)var n=c[c.length-1];else k=l.type,n=[],n.type=m&&
+l.type!=Blockly.NEXT_STATEMENT?Blockly.BlockSvg.INLINE:l.type,n.height=0,c.push(n);n.push(l);l.renderHeight=Blockly.BlockSvg.MIN_BLOCK_Y;l.renderWidth=m&&l.type==Blockly.INPUT_VALUE?Blockly.BlockSvg.TAB_WIDTH+1.25*Blockly.BlockSvg.SEP_SPACE_X:0;if(l.connection&&l.connection.isConnected()){var q=l.connection.targetBlock().getHeightWidth();l.renderHeight=Math.max(l.renderHeight,q.height);l.renderWidth=Math.max(l.renderWidth,q.width)}m||p!=b.length-1?!m&&l.type==Blockly.INPUT_VALUE&&b[p+1]&&b[p+1].type==
+Blockly.NEXT_STATEMENT&&l.renderHeight--:l.renderHeight--;n.height=Math.max(n.height,l.renderHeight);l.fieldWidth=0;1==c.length&&(l.fieldWidth+=this.RTL?-a:a);q=!1;for(var t=0,r;r=l.fieldRow[t];t++){0!=t&&(l.fieldWidth+=Blockly.BlockSvg.SEP_SPACE_X);var u=r.getSize();r.renderWidth=u.width;r.renderSep=q&&r.EDITABLE?Blockly.BlockSvg.SEP_SPACE_X:0;l.fieldWidth+=r.renderWidth+r.renderSep;n.height=Math.max(n.height,u.height);q=r.EDITABLE}n.type!=Blockly.BlockSvg.INLINE&&(n.type==Blockly.NEXT_STATEMENT?
+(g=!0,e=Math.max(e,l.fieldWidth)):(n.type==Blockly.INPUT_VALUE?f=!0:n.type==Blockly.DUMMY_INPUT&&(h=!0),d=Math.max(d,l.fieldWidth)))}for(a=0;n=c[a];a++)if(n.thicker=!1,n.type==Blockly.BlockSvg.INLINE)for(b=0;l=n[b];b++)if(l.type==Blockly.INPUT_VALUE){n.height+=2*Blockly.BlockSvg.INLINE_PADDING_Y;n.thicker=!0;break}c.statementEdge=2*Blockly.BlockSvg.SEP_SPACE_X+e;g&&(c.rightEdge=Math.max(c.rightEdge,c.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH));f?c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X+
 Blockly.BlockSvg.TAB_WIDTH):h&&(c.rightEdge=Math.max(c.rightEdge,d+2*Blockly.BlockSvg.SEP_SPACE_X));c.hasValue=f;c.hasStatement=g;c.hasDummy=h;return c};
 Blockly.BlockSvg.prototype.renderDraw_=function(a,b){this.startHat_=!1;this.height=0;if(this.outputConnection)this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!0;else{this.squareBottomLeftCorner_=this.squareTopLeftCorner_=!1;if(this.previousConnection){var c=this.previousConnection.targetBlock();c&&c.getNextBlock()==this&&(this.squareTopLeftCorner_=!0)}else Blockly.BlockSvg.START_HAT&&(this.startHat_=this.squareTopLeftCorner_=!0,this.height+=Blockly.BlockSvg.START_HAT_HEIGHT,b.rightEdge=Math.max(b.rightEdge,
 100));this.getNextBlock()&&(this.squareBottomLeftCorner_=!0)}var d=[],e=[];c=[];var f=[];this.renderDrawTop_(d,c,b.rightEdge);var g=this.renderDrawRight_(d,c,e,f,b,a);this.renderDrawBottom_(d,c,g);this.renderDrawLeft_(d,c);d=d.join(" ")+"\n"+e.join(" ");this.svgPath_.setAttribute("d",d);this.svgPathDark_.setAttribute("d",d);d=c.join(" ")+"\n"+f.join(" ");this.svgPathLight_.setAttribute("d",d);this.RTL&&(this.svgPath_.setAttribute("transform","scale(-1 1)"),this.svgPathLight_.setAttribute("transform",
@@ -1412,15 +1421,15 @@ Blockly.BlockSvg.prototype.renderDraw_=function(a,b){this.startHat_=!1;this.heig
 Blockly.BlockSvg.prototype.renderMoveConnections_=function(){var a=this.getRelativeToSurfaceXY();this.previousConnection&&this.previousConnection.moveToOffset(a);this.outputConnection&&this.outputConnection.moveToOffset(a);for(var b=0;b<this.inputList.length;b++){var c=this.inputList[b].connection;c&&(c.moveToOffset(a),c.isConnected()&&c.tighten_())}this.nextConnection&&(this.nextConnection.moveToOffset(a),this.nextConnection.isConnected()&&this.nextConnection.tighten_())};
 Blockly.BlockSvg.prototype.renderDrawTop_=function(a,b,c){this.squareTopLeftCorner_?(a.push("m 0,0"),b.push("m 0.5,0.5"),this.startHat_&&(a.push(Blockly.BlockSvg.START_HAT_PATH),b.push(this.RTL?Blockly.BlockSvg.START_HAT_HIGHLIGHT_RTL:Blockly.BlockSvg.START_HAT_HIGHLIGHT_LTR))):(a.push(Blockly.BlockSvg.TOP_LEFT_CORNER_START),b.push(this.RTL?Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_RTL:Blockly.BlockSvg.TOP_LEFT_CORNER_START_HIGHLIGHT_LTR),a.push(Blockly.BlockSvg.TOP_LEFT_CORNER),b.push(Blockly.BlockSvg.TOP_LEFT_CORNER_HIGHLIGHT));
 this.previousConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH-15),b.push("H",Blockly.BlockSvg.NOTCH_WIDTH-15),a.push(Blockly.BlockSvg.NOTCH_PATH_LEFT),b.push(Blockly.BlockSvg.NOTCH_PATH_LEFT_HIGHLIGHT),this.previousConnection.setOffsetInBlock(this.RTL?-Blockly.BlockSvg.NOTCH_WIDTH:Blockly.BlockSvg.NOTCH_WIDTH,0));a.push("H",c);b.push("H",c-.5);this.width=c};
-Blockly.BlockSvg.prototype.renderDrawRight_=function(a,b,c,d,e,f){for(var g,h=0,k,n,p=0,l;l=e[p];p++){g=Blockly.BlockSvg.SEP_SPACE_X;0==p&&(g+=this.RTL?-f:f);b.push("M",e.rightEdge-.5+","+(h+.5));if(this.isCollapsed()){var m=l[0];k=h;this.renderFields_(m.fieldRow,g,k);a.push(Blockly.BlockSvg.JAGGED_TEETH);b.push("h 8");m=l.height-Blockly.BlockSvg.JAGGED_TEETH_HEIGHT;a.push("v",m);this.RTL&&(b.push("v 3.9 l 7.2,3.4 m -14.5,8.9 l 7.3,3.5"),b.push("v",m-.7));this.width+=Blockly.BlockSvg.JAGGED_TEETH_WIDTH}else if(l.type==
-Blockly.BlockSvg.INLINE){for(var q=0;m=l[q];q++)k=h,l.thicker&&(k+=Blockly.BlockSvg.INLINE_PADDING_Y),g=this.renderFields_(m.fieldRow,g,k),m.type!=Blockly.DUMMY_INPUT&&(g+=m.renderWidth+Blockly.BlockSvg.SEP_SPACE_X),m.type==Blockly.INPUT_VALUE&&(c.push("M",g-Blockly.BlockSvg.SEP_SPACE_X+","+(h+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"),this.RTL?(d.push("M",g-Blockly.BlockSvg.SEP_SPACE_X-2.5+Blockly.BlockSvg.TAB_WIDTH-m.renderWidth+","+(h+Blockly.BlockSvg.INLINE_PADDING_Y+.5)),d.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),d.push("v",m.renderHeight-Blockly.BlockSvg.TAB_HEIGHT+2.5),d.push("h",m.renderWidth-Blockly.BlockSvg.TAB_WIDTH+2)):(d.push("M",g-Blockly.BlockSvg.SEP_SPACE_X+.5+","+(h+Blockly.BlockSvg.INLINE_PADDING_Y+.5)),d.push("v",m.renderHeight+1),d.push("h",Blockly.BlockSvg.TAB_WIDTH-
-2-m.renderWidth),d.push("M",g-m.renderWidth-Blockly.BlockSvg.SEP_SPACE_X+.9+","+(h+Blockly.BlockSvg.INLINE_PADDING_Y+Blockly.BlockSvg.TAB_HEIGHT-.7)),d.push("l",.46*Blockly.BlockSvg.TAB_WIDTH+",-2.1")),k=this.RTL?-g-Blockly.BlockSvg.TAB_WIDTH+Blockly.BlockSvg.SEP_SPACE_X+m.renderWidth+1:g+Blockly.BlockSvg.TAB_WIDTH-Blockly.BlockSvg.SEP_SPACE_X-m.renderWidth-1,n=h+Blockly.BlockSvg.INLINE_PADDING_Y+1,m.connection.setOffsetInBlock(k,n));g=Math.max(g,e.rightEdge);this.width=Math.max(this.width,g);a.push("H",
-g);b.push("H",g-.5);a.push("v",l.height);this.RTL&&b.push("v",l.height-1)}else l.type==Blockly.INPUT_VALUE?(m=l[0],k=h,m.align!=Blockly.ALIGN_LEFT&&(q=e.rightEdge-m.fieldWidth-Blockly.BlockSvg.TAB_WIDTH-2*Blockly.BlockSvg.SEP_SPACE_X,m.align==Blockly.ALIGN_RIGHT?g+=q:m.align==Blockly.ALIGN_CENTRE&&(g+=q/2)),this.renderFields_(m.fieldRow,g,k),a.push(Blockly.BlockSvg.TAB_PATH_DOWN),q=l.height-Blockly.BlockSvg.TAB_HEIGHT,a.push("v",q),this.RTL?(b.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),b.push("v",
-q+.5)):(b.push("M",e.rightEdge-5+","+(h+Blockly.BlockSvg.TAB_HEIGHT-.7)),b.push("l",.46*Blockly.BlockSvg.TAB_WIDTH+",-2.1")),k=this.RTL?-e.rightEdge-1:e.rightEdge+1,m.connection.setOffsetInBlock(k,h),m.connection.isConnected()&&(this.width=Math.max(this.width,e.rightEdge+m.connection.targetBlock().getHeightWidth().width-Blockly.BlockSvg.TAB_WIDTH+1))):l.type==Blockly.DUMMY_INPUT?(m=l[0],k=h,m.align!=Blockly.ALIGN_LEFT&&(q=e.rightEdge-m.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,e.hasValue&&(q-=Blockly.BlockSvg.TAB_WIDTH),
-m.align==Blockly.ALIGN_RIGHT?g+=q:m.align==Blockly.ALIGN_CENTRE&&(g+=q/2)),this.renderFields_(m.fieldRow,g,k),a.push("v",l.height),this.RTL&&b.push("v",l.height-1)):l.type==Blockly.NEXT_STATEMENT&&(m=l[0],0==p&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),this.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),h+=Blockly.BlockSvg.SEP_SPACE_Y),k=h,m.align!=Blockly.ALIGN_LEFT&&(q=e.statementEdge-m.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,m.align==Blockly.ALIGN_RIGHT?g+=q:m.align==Blockly.ALIGN_CENTRE&&(g+=
-q/2)),this.renderFields_(m.fieldRow,g,k),g=e.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH,a.push("H",g),a.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER),a.push("v",l.height-2*Blockly.BlockSvg.CORNER_RADIUS),a.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER),a.push("H",e.rightEdge),this.RTL?(b.push("M",g-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(h+Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),b.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL),b.push("v",l.height-2*Blockly.BlockSvg.CORNER_RADIUS),
-b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL)):(b.push("M",g-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(h+l.height-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR)),b.push("H",e.rightEdge-.5),k=this.RTL?-g:g+1,m.connection.setOffsetInBlock(k,h+1),m.connection.isConnected()&&(this.width=Math.max(this.width,e.statementEdge+m.connection.targetBlock().getHeightWidth().width)),p==e.length-1||e[p+1].type==
+Blockly.BlockSvg.prototype.renderDrawRight_=function(a,b,c,d,e,f){for(var g,h=0,k,m,p=0,l;l=e[p];p++){g=Blockly.BlockSvg.SEP_SPACE_X;0==p&&(g+=this.RTL?-f:f);b.push("M",e.rightEdge-.5+","+(h+.5));if(this.isCollapsed()){var n=l[0];k=h;this.renderFields_(n.fieldRow,g,k);a.push(Blockly.BlockSvg.JAGGED_TEETH);b.push("h 8");n=l.height-Blockly.BlockSvg.JAGGED_TEETH_HEIGHT;a.push("v",n);this.RTL&&(b.push("v 3.9 l 7.2,3.4 m -14.5,8.9 l 7.3,3.5"),b.push("v",n-.7));this.width+=Blockly.BlockSvg.JAGGED_TEETH_WIDTH}else if(l.type==
+Blockly.BlockSvg.INLINE){for(var q=0;n=l[q];q++)k=h,l.thicker&&(k+=Blockly.BlockSvg.INLINE_PADDING_Y),g=this.renderFields_(n.fieldRow,g,k),n.type!=Blockly.DUMMY_INPUT&&(g+=n.renderWidth+Blockly.BlockSvg.SEP_SPACE_X),n.type==Blockly.INPUT_VALUE&&(c.push("M",g-Blockly.BlockSvg.SEP_SPACE_X+","+(h+Blockly.BlockSvg.INLINE_PADDING_Y)),c.push("h",Blockly.BlockSvg.TAB_WIDTH-2-n.renderWidth),c.push(Blockly.BlockSvg.TAB_PATH_DOWN),c.push("v",n.renderHeight+1-Blockly.BlockSvg.TAB_HEIGHT),c.push("h",n.renderWidth+
+2-Blockly.BlockSvg.TAB_WIDTH),c.push("z"),this.RTL?(d.push("M",g-Blockly.BlockSvg.SEP_SPACE_X-2.5+Blockly.BlockSvg.TAB_WIDTH-n.renderWidth+","+(h+Blockly.BlockSvg.INLINE_PADDING_Y+.5)),d.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),d.push("v",n.renderHeight-Blockly.BlockSvg.TAB_HEIGHT+2.5),d.push("h",n.renderWidth-Blockly.BlockSvg.TAB_WIDTH+2)):(d.push("M",g-Blockly.BlockSvg.SEP_SPACE_X+.5+","+(h+Blockly.BlockSvg.INLINE_PADDING_Y+.5)),d.push("v",n.renderHeight+1),d.push("h",Blockly.BlockSvg.TAB_WIDTH-
+2-n.renderWidth),d.push("M",g-n.renderWidth-Blockly.BlockSvg.SEP_SPACE_X+.9+","+(h+Blockly.BlockSvg.INLINE_PADDING_Y+Blockly.BlockSvg.TAB_HEIGHT-.7)),d.push("l",.46*Blockly.BlockSvg.TAB_WIDTH+",-2.1")),k=this.RTL?-g-Blockly.BlockSvg.TAB_WIDTH+Blockly.BlockSvg.SEP_SPACE_X+n.renderWidth+1:g+Blockly.BlockSvg.TAB_WIDTH-Blockly.BlockSvg.SEP_SPACE_X-n.renderWidth-1,m=h+Blockly.BlockSvg.INLINE_PADDING_Y+1,n.connection.setOffsetInBlock(k,m));g=Math.max(g,e.rightEdge);this.width=Math.max(this.width,g);a.push("H",
+g);b.push("H",g-.5);a.push("v",l.height);this.RTL&&b.push("v",l.height-1)}else l.type==Blockly.INPUT_VALUE?(n=l[0],k=h,n.align!=Blockly.ALIGN_LEFT&&(q=e.rightEdge-n.fieldWidth-Blockly.BlockSvg.TAB_WIDTH-2*Blockly.BlockSvg.SEP_SPACE_X,n.align==Blockly.ALIGN_RIGHT?g+=q:n.align==Blockly.ALIGN_CENTRE&&(g+=q/2)),this.renderFields_(n.fieldRow,g,k),a.push(Blockly.BlockSvg.TAB_PATH_DOWN),q=l.height-Blockly.BlockSvg.TAB_HEIGHT,a.push("v",q),this.RTL?(b.push(Blockly.BlockSvg.TAB_PATH_DOWN_HIGHLIGHT_RTL),b.push("v",
+q+.5)):(b.push("M",e.rightEdge-5+","+(h+Blockly.BlockSvg.TAB_HEIGHT-.7)),b.push("l",.46*Blockly.BlockSvg.TAB_WIDTH+",-2.1")),k=this.RTL?-e.rightEdge-1:e.rightEdge+1,n.connection.setOffsetInBlock(k,h),n.connection.isConnected()&&(this.width=Math.max(this.width,e.rightEdge+n.connection.targetBlock().getHeightWidth().width-Blockly.BlockSvg.TAB_WIDTH+1))):l.type==Blockly.DUMMY_INPUT?(n=l[0],k=h,n.align!=Blockly.ALIGN_LEFT&&(q=e.rightEdge-n.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,e.hasValue&&(q-=Blockly.BlockSvg.TAB_WIDTH),
+n.align==Blockly.ALIGN_RIGHT?g+=q:n.align==Blockly.ALIGN_CENTRE&&(g+=q/2)),this.renderFields_(n.fieldRow,g,k),a.push("v",l.height),this.RTL&&b.push("v",l.height-1)):l.type==Blockly.NEXT_STATEMENT&&(n=l[0],0==p&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),this.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),h+=Blockly.BlockSvg.SEP_SPACE_Y),k=h,n.align!=Blockly.ALIGN_LEFT&&(q=e.statementEdge-n.fieldWidth-2*Blockly.BlockSvg.SEP_SPACE_X,n.align==Blockly.ALIGN_RIGHT?g+=q:n.align==Blockly.ALIGN_CENTRE&&(g+=
+q/2)),this.renderFields_(n.fieldRow,g,k),g=e.statementEdge+Blockly.BlockSvg.NOTCH_WIDTH,a.push("H",g),a.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER),a.push("v",l.height-2*Blockly.BlockSvg.CORNER_RADIUS),a.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER),a.push("H",e.rightEdge),this.RTL?(b.push("M",g-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(h+Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),b.push(Blockly.BlockSvg.INNER_TOP_LEFT_CORNER_HIGHLIGHT_RTL),b.push("v",l.height-2*Blockly.BlockSvg.CORNER_RADIUS),
+b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_RTL)):(b.push("M",g-Blockly.BlockSvg.NOTCH_WIDTH+Blockly.BlockSvg.DISTANCE_45_OUTSIDE+","+(h+l.height-Blockly.BlockSvg.DISTANCE_45_OUTSIDE)),b.push(Blockly.BlockSvg.INNER_BOTTOM_LEFT_CORNER_HIGHLIGHT_LTR)),b.push("H",e.rightEdge-.5),k=this.RTL?-g:g+1,n.connection.setOffsetInBlock(k,h+1),n.connection.isConnected()&&(this.width=Math.max(this.width,e.statementEdge+n.connection.targetBlock().getHeightWidth().width)),p==e.length-1||e[p+1].type==
 Blockly.NEXT_STATEMENT)&&(a.push("v",Blockly.BlockSvg.SEP_SPACE_Y),this.RTL&&b.push("v",Blockly.BlockSvg.SEP_SPACE_Y-1),h+=Blockly.BlockSvg.SEP_SPACE_Y);h+=l.height}e.length||(h=Blockly.BlockSvg.MIN_BLOCK_Y,a.push("V",h),this.RTL&&b.push("V",h-1));return h};
 Blockly.BlockSvg.prototype.renderDrawBottom_=function(a,b,c){this.height+=c+1;this.nextConnection&&(a.push("H",Blockly.BlockSvg.NOTCH_WIDTH+(this.RTL?.5:-.5)+" "+Blockly.BlockSvg.NOTCH_PATH_RIGHT),this.nextConnection.setOffsetInBlock(this.RTL?-Blockly.BlockSvg.NOTCH_WIDTH:Blockly.BlockSvg.NOTCH_WIDTH,c+1),this.height+=4);this.squareBottomLeftCorner_?(a.push("H 0"),this.RTL||b.push("M","0.5,"+(c-.5))):(a.push("H",Blockly.BlockSvg.CORNER_RADIUS),a.push("a",Blockly.BlockSvg.CORNER_RADIUS+","+Blockly.BlockSvg.CORNER_RADIUS+
 " 0 0,1 -"+Blockly.BlockSvg.CORNER_RADIUS+",-"+Blockly.BlockSvg.CORNER_RADIUS),this.RTL||(b.push("M",Blockly.BlockSvg.DISTANCE_45_INSIDE+","+(c-Blockly.BlockSvg.DISTANCE_45_INSIDE)),b.push("A",Blockly.BlockSvg.CORNER_RADIUS-.5+","+(Blockly.BlockSvg.CORNER_RADIUS-.5)+" 0 0,1 0.5,"+(c-Blockly.BlockSvg.CORNER_RADIUS))))};
@@ -1484,13 +1493,13 @@ Blockly.Field.register("field_image",Blockly.FieldImage);Blockly.FieldNumber=fun
 Blockly.FieldNumber.prototype.setConstraints=function(a,b,c){c=parseFloat(c);this.precision_=isNaN(c)?0:c;a=parseFloat(a);this.min_=isNaN(a)?-Infinity:a;b=parseFloat(b);this.max_=isNaN(b)?Infinity:b;this.setValue(this.callValidator(this.getValue()))};
 Blockly.FieldNumber.prototype.classValidator=function(a){if(null===a)return null;a=String(a);a=a.replace(/O/ig,"0");a=a.replace(/,/g,"");a=parseFloat(a||0);if(isNaN(a))return null;this.precision_&&isFinite(a)&&(a=Math.round(a/this.precision_)*this.precision_);a=goog.math.clamp(a,this.min_,this.max_);return String(a)};Blockly.Field.register("field_number",Blockly.FieldNumber);Blockly.FieldVariable=function(a,b,c,d){this.menuGenerator_=Blockly.FieldVariable.dropdownCreate;this.size_=new goog.math.Size(0,Blockly.BlockSvg.MIN_BLOCK_Y);this.setValidator(b);this.defaultVariableName=a||"";this.setTypes_(c,d);this.value_=null};goog.inherits(Blockly.FieldVariable,Blockly.FieldDropdown);Blockly.FieldVariable.fromJson=function(a){var b=Blockly.utils.replaceMessageReferences(a.variable);return new Blockly.FieldVariable(b,null,a.variableTypes,a.defaultType)};
 Blockly.FieldVariable.prototype.init=function(){this.fieldGroup_||(Blockly.FieldVariable.superClass_.init.call(this),this.initModel())};Blockly.FieldVariable.prototype.initModel=function(){if(!this.variable_){this.workspace_=this.sourceBlock_.workspace;var a=Blockly.Variables.getOrCreateVariablePackage(this.workspace_,null,this.defaultVariableName,this.defaultType_);Blockly.Events.disable();try{this.setValue(a.getId())}finally{Blockly.Events.enable()}}};
-Blockly.FieldVariable.dispose=function(){Blockly.FieldVariable.superClass_.dispose.call(this);this.variableMap_=this.workspace_=null};Blockly.FieldVariable.prototype.setSourceBlock=function(a){goog.asserts.assert(!a.isShadow(),"Variable fields are not allowed to exist on shadow blocks.");Blockly.FieldVariable.superClass_.setSourceBlock.call(this,a)};Blockly.FieldVariable.prototype.getValue=function(){return this.variable_?this.variable_.getId():null};
+Blockly.FieldVariable.prototype.dispose=function(){Blockly.FieldVariable.superClass_.dispose.call(this);this.variableMap_=this.workspace_=null};Blockly.FieldVariable.prototype.setSourceBlock=function(a){goog.asserts.assert(!a.isShadow(),"Variable fields are not allowed to exist on shadow blocks.");Blockly.FieldVariable.superClass_.setSourceBlock.call(this,a)};Blockly.FieldVariable.prototype.getValue=function(){return this.variable_?this.variable_.getId():null};
 Blockly.FieldVariable.prototype.getText=function(){return this.variable_?this.variable_.name:""};Blockly.FieldVariable.prototype.getVariable=function(){return this.variable_};
 Blockly.FieldVariable.prototype.setValue=function(a){var b=Blockly.Variables.getVariable(this.sourceBlock_.workspace,a);if(!b)throw Error("Variable id doesn't point to a real variable!  ID was "+a);var c=b.type;if(!this.typeIsAllowed_(c))throw Error("Variable type doesn't match this field!  Type was "+c);this.sourceBlock_&&Blockly.Events.isEnabled()&&(c=this.variable_?this.variable_.getId():null,Blockly.Events.fire(new Blockly.Events.BlockChange(this.sourceBlock_,"field",this.name,c,a)));this.variable_=
 b;this.value_=a;this.setText(b.name)};Blockly.FieldVariable.prototype.typeIsAllowed_=function(a){var b=this.getVariableTypes_();if(!b)return!0;for(var c=0;c<b.length;c++)if(a==b[c])return!0;return!1};Blockly.FieldVariable.prototype.getVariableTypes_=function(){var a=this.variableTypes;if(null===a&&this.sourceBlock_)return this.sourceBlock_.workspace.getVariableTypes();a=a||[""];if(0==a.length)throw a=this.getText(),Error("'variableTypes' of field variable "+a+" was an empty list");return a};
 Blockly.FieldVariable.prototype.setTypes_=function(a,b){var c=b||"";if(null==a||void 0==a)var d=null;else if(Array.isArray(a)){d=a;for(var e=!1,f=0;f<d.length;f++)d[f]==c&&(e=!0);if(!e)throw Error("Invalid default type '"+c+"' in the definition of a FieldVariable");}else throw Error("'variableTypes' was not an array in the definition of a FieldVariable");this.defaultType_=c;this.variableTypes=d};
-Blockly.FieldVariable.dropdownCreate=function(){if(!this.variable_)throw Error("Tried to call dropdownCreate on a variable field with no variable selected.");var a=[],b=this.getText(),c=null;this.sourceBlock_&&(c=this.sourceBlock_.workspace);if(c){var d=this.getVariableTypes_();a=[];for(var e=0;e<d.length;e++){var f=c.getVariablesOfType(d[e]);a=a.concat(f)}}a.sort(Blockly.VariableModel.compareByName);c=[];for(e=0;e<a.length;e++)c[e]=[a[e].name,a[e].getId()];c.push([Blockly.Msg.RENAME_VARIABLE,Blockly.RENAME_VARIABLE_ID]);
-Blockly.Msg.DELETE_VARIABLE&&c.push([Blockly.Msg.DELETE_VARIABLE.replace("%1",b),Blockly.DELETE_VARIABLE_ID]);return c};Blockly.FieldVariable.prototype.onItemSelected=function(a,b){var c=b.getValue();if(this.sourceBlock_&&this.sourceBlock_.workspace){var d=this.sourceBlock_.workspace;if(c==Blockly.RENAME_VARIABLE_ID){Blockly.Variables.renameVariable(d,this.variable_);return}if(c==Blockly.DELETE_VARIABLE_ID){d.deleteVariableById(this.variable_.getId());return}}this.setValue(c)};
+Blockly.FieldVariable.dropdownCreate=function(){if(!this.variable_)throw Error("Tried to call dropdownCreate on a variable field with no variable selected.");var a=this.getText(),b=null;this.sourceBlock_&&(b=this.sourceBlock_.workspace);var c=[];if(b)for(var d=this.getVariableTypes_(),e=0;e<d.length;e++){var f=b.getVariablesOfType(d[e]);c=c.concat(f)}c.sort(Blockly.VariableModel.compareByName);b=[];for(e=0;e<c.length;e++)b[e]=[c[e].name,c[e].getId()];b.push([Blockly.Msg.RENAME_VARIABLE,Blockly.RENAME_VARIABLE_ID]);
+Blockly.Msg.DELETE_VARIABLE&&b.push([Blockly.Msg.DELETE_VARIABLE.replace("%1",a),Blockly.DELETE_VARIABLE_ID]);return b};Blockly.FieldVariable.prototype.onItemSelected=function(a,b){var c=b.getValue();if(this.sourceBlock_&&this.sourceBlock_.workspace){var d=this.sourceBlock_.workspace;if(c==Blockly.RENAME_VARIABLE_ID){Blockly.Variables.renameVariable(d,this.variable_);return}if(c==Blockly.DELETE_VARIABLE_ID){d.deleteVariableById(this.variable_.getId());return}}this.setValue(c)};
 Blockly.Field.register("field_variable",Blockly.FieldVariable);Blockly.Generator=function(a){this.name_=a;this.FUNCTION_NAME_PLACEHOLDER_REGEXP_=new RegExp(this.FUNCTION_NAME_PLACEHOLDER_,"g")};Blockly.Generator.NAME_TYPE="generated_function";Blockly.Generator.prototype.INFINITE_LOOP_TRAP=null;Blockly.Generator.prototype.STATEMENT_PREFIX=null;Blockly.Generator.prototype.INDENT="  ";Blockly.Generator.prototype.COMMENT_WRAP=60;Blockly.Generator.prototype.ORDER_OVERRIDES=[];
 Blockly.Generator.prototype.workspaceToCode=function(a){a||(console.warn("No workspace specified in workspaceToCode call.  Guessing."),a=Blockly.getMainWorkspace());var b=[];this.init(a);a=a.getTopBlocks(!0);for(var c=0,d;d=a[c];c++){var e=this.blockToCode(d);goog.isArray(e)&&(e=e[0]);e&&(d.outputConnection&&(e=this.scrubNakedValue(e)),b.push(e))}b=b.join("\n");b=this.finish(b);b=b.replace(/^\s+\n/,"");b=b.replace(/\n\s+$/,"\n");return b=b.replace(/[ \t]+\n/g,"\n")};
 Blockly.Generator.prototype.prefixLines=function(a,b){return b+a.replace(/(?!\n$)\n/g,"\n"+b)};Blockly.Generator.prototype.allNestedComments=function(a){var b=[];a=a.getDescendants();for(var c=0;c<a.length;c++){var d=a[c].getCommentText();d&&b.push(d)}b.length&&b.push("");return b.join("\n")};
@@ -1507,7 +1516,7 @@ Blockly.Names.prototype.getDistinctName=function(a,b){for(var c=this.safeName_(a
 Blockly.Names.equals=function(a,b){return a.toLowerCase()==b.toLowerCase()};Blockly.Procedures={};Blockly.Procedures.NAME_TYPE=Blockly.PROCEDURE_CATEGORY_NAME;Blockly.Procedures.allProcedures=function(a){a=a.getAllBlocks();for(var b=[],c=[],d=0;d<a.length;d++)if(a[d].getProcedureDef){var e=a[d].getProcedureDef();e&&(e[2]?b.push(e):c.push(e))}c.sort(Blockly.Procedures.procTupleComparator_);b.sort(Blockly.Procedures.procTupleComparator_);return[c,b]};Blockly.Procedures.procTupleComparator_=function(a,b){return a[0].toLowerCase().localeCompare(b[0].toLowerCase())};
 Blockly.Procedures.findLegalName=function(a,b){if(b.isInFlyout)return a;for(;!Blockly.Procedures.isLegalName_(a,b.workspace,b);){var c=a.match(/^(.*?)(\d+)$/);a=c?c[1]+(parseInt(c[2],10)+1):a+"2"}return a};Blockly.Procedures.isLegalName_=function(a,b,c){return!Blockly.Procedures.isNameUsed(a,b,c)};Blockly.Procedures.isNameUsed=function(a,b,c){b=b.getAllBlocks();for(var d=0;d<b.length;d++)if(b[d]!=c&&b[d].getProcedureDef){var e=b[d].getProcedureDef();if(Blockly.Names.equals(e[0],a))return!0}return!1};
 Blockly.Procedures.rename=function(a){a=a.replace(/^[\s\xa0]+|[\s\xa0]+$/g,"");var b=Blockly.Procedures.findLegalName(a,this.sourceBlock_),c=this.text_;if(c!=a&&c!=b){a=this.sourceBlock_.workspace.getAllBlocks();for(var d=0;d<a.length;d++)a[d].renameProcedure&&a[d].renameProcedure(c,b)}return b};
-Blockly.Procedures.flyoutCategory=function(a){function b(a,b){for(var d=0;d<a.length;d++){var e=a[d][0],f=a[d][1],g=goog.dom.createDom("block");g.setAttribute("type",b);g.setAttribute("gap",16);var l=goog.dom.createDom("mutation");l.setAttribute("name",e);g.appendChild(l);for(e=0;e<f.length;e++){var m=goog.dom.createDom("arg");m.setAttribute("name",f[e]);l.appendChild(m)}c.push(g)}}var c=[];if(Blockly.Blocks.procedures_defnoreturn){var d=goog.dom.createDom("block");d.setAttribute("type","procedures_defnoreturn");
+Blockly.Procedures.flyoutCategory=function(a){function b(a,b){for(var d=0;d<a.length;d++){var e=a[d][0],f=a[d][1],g=goog.dom.createDom("block");g.setAttribute("type",b);g.setAttribute("gap",16);var l=goog.dom.createDom("mutation");l.setAttribute("name",e);g.appendChild(l);for(e=0;e<f.length;e++){var n=goog.dom.createDom("arg");n.setAttribute("name",f[e]);l.appendChild(n)}c.push(g)}}var c=[];if(Blockly.Blocks.procedures_defnoreturn){var d=goog.dom.createDom("block");d.setAttribute("type","procedures_defnoreturn");
 d.setAttribute("gap",16);var e=goog.dom.createDom("field",null,Blockly.Msg.PROCEDURES_DEFNORETURN_PROCEDURE);e.setAttribute("name","NAME");d.appendChild(e);c.push(d)}Blockly.Blocks.procedures_defreturn&&(d=goog.dom.createDom("block"),d.setAttribute("type","procedures_defreturn"),d.setAttribute("gap",16),e=goog.dom.createDom("field",null,Blockly.Msg.PROCEDURES_DEFRETURN_PROCEDURE),e.setAttribute("name","NAME"),d.appendChild(e),c.push(d));Blockly.Blocks.procedures_ifreturn&&(d=goog.dom.createDom("block"),
 d.setAttribute("type","procedures_ifreturn"),d.setAttribute("gap",16),c.push(d));c.length&&c[c.length-1].setAttribute("gap",24);a=Blockly.Procedures.allProcedures(a);b(a[0],"procedures_callnoreturn");b(a[1],"procedures_callreturn");return c};Blockly.Procedures.getCallers=function(a,b){for(var c=[],d=b.getAllBlocks(),e=0;e<d.length;e++)if(d[e].getProcedureCall){var f=d[e].getProcedureCall();f&&Blockly.Names.equals(f,a)&&c.push(d[e])}return c};
 Blockly.Procedures.mutateCallers=function(a){var b=Blockly.Events.recordUndo,c=a.getProcedureDef()[0],d=a.mutationToDom(!0);a=Blockly.Procedures.getCallers(c,a.workspace);c=0;for(var e;e=a[c];c++){var f=e.mutationToDom();f=f&&Blockly.Xml.domToText(f);e.domToMutation(d);var g=e.mutationToDom();g=g&&Blockly.Xml.domToText(g);f!=g&&(Blockly.Events.recordUndo=!1,Blockly.Events.fire(new Blockly.Events.BlockChange(e,"mutation",null,f,g)),Blockly.Events.recordUndo=b)}};
@@ -1548,7 +1557,7 @@ Blockly.HorizontalFlyout.prototype.setBackgroundPath_=function(a,b){var c=this.t
 d.push("h",a),d.push("a",this.CORNER_RADIUS,this.CORNER_RADIUS,0,0,1,this.CORNER_RADIUS,this.CORNER_RADIUS),d.push("v",b),d.push("h",-a-2*this.CORNER_RADIUS));d.push("z");this.svgBackground_.setAttribute("d",d.join(" "))};Blockly.HorizontalFlyout.prototype.scrollToStart=function(){this.scrollbar_.set(this.RTL?Infinity:0)};
 Blockly.HorizontalFlyout.prototype.wheel_=function(a){var b=a.deltaX;if(b){goog.userAgent.GECKO&&1===a.deltaMode&&(b*=10);var c=this.getMetrics_();b=c.viewLeft+b;b=Math.min(b,c.contentWidth-c.viewWidth);b=Math.max(b,0);this.scrollbar_.set(b);Blockly.WidgetDiv.hide()}a.preventDefault();a.stopPropagation()};
 Blockly.HorizontalFlyout.prototype.layout_=function(a,b){this.workspace_.scale=this.targetWorkspace_.scale;var c=this.MARGIN,d=this.RTL?c:c+Blockly.BlockSvg.TAB_WIDTH;this.RTL&&(a=a.reverse());for(var e=0,f;f=a[e];e++)if("block"==f.type){f=f.block;for(var g=f.getDescendants(),h=0,k;k=g[h];h++)k.isInFlyout=!0;f.render();g=f.getSvgRoot();h=f.getHeightWidth();k=f.outputConnection?Blockly.BlockSvg.TAB_WIDTH:0;k=this.RTL?d+h.width:d+k;f.moveBy(k,c);k=this.createRect_(f,k,c,h,e);d+=h.width+b[e];this.addBlockListeners_(g,
-f,k)}else"button"==f.type&&(this.initFlyoutButton_(f.button,d,c),d+=f.button.width+b[e])};Blockly.HorizontalFlyout.prototype.isDragTowardWorkspace=function(a){a=Math.atan2(a.y,a.x)/Math.PI*180;var b=this.dragAngleRange_;if(this.toolboxPosition_==Blockly.TOOLBOX_AT_TOP){if(a<90+b&&a>90-b)return!0}else if(a>-90-b&&a<-90+b)return!0;return!1};
+f,k)}else"button"==f.type&&(this.initFlyoutButton_(f.button,d,c),d+=f.button.width+b[e])};Blockly.HorizontalFlyout.prototype.isDragTowardWorkspace=function(a){a=Math.atan2(a.y,a.x)/Math.PI*180;var b=this.dragAngleRange_;return a<90+b&&a>90-b||a>-90-b&&a<-90+b?!0:!1};
 Blockly.HorizontalFlyout.prototype.getClientRect=function(){if(!this.svgGroup_)return null;var a=this.svgGroup_.getBoundingClientRect(),b=a.top;a=a.height;if(this.toolboxPosition_==Blockly.TOOLBOX_AT_TOP)return new goog.math.Rect(-1E9,b-1E9,2E9,1E9+a);if(this.toolboxPosition_==Blockly.TOOLBOX_AT_BOTTOM)return new goog.math.Rect(-1E9,b,2E9,1E9+a)};
 Blockly.HorizontalFlyout.prototype.reflowInternal_=function(){this.workspace_.scale=this.targetWorkspace_.scale;for(var a=0,b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++)a=Math.max(a,d.getHeightWidth().height);a+=1.5*this.MARGIN;a*=this.workspace_.scale;a+=Blockly.Scrollbar.scrollbarThickness;if(this.height_!=a){for(c=0;d=b[c];c++)d.flyoutRect_&&this.moveRectToBlock_(d.flyoutRect_,d);this.height_=a;this.targetWorkspace_.resize()}};Blockly.VerticalFlyout=function(a){a.getMetrics=this.getMetrics_.bind(this);a.setMetrics=this.setMetrics_.bind(this);Blockly.VerticalFlyout.superClass_.constructor.call(this,a);this.horizontalLayout_=!1};goog.inherits(Blockly.VerticalFlyout,Blockly.Flyout);
 Blockly.VerticalFlyout.prototype.getMetrics_=function(){if(!this.isVisible())return null;try{var a=this.workspace_.getCanvas().getBBox()}catch(e){a={height:0,y:0,width:0,x:0}}var b=this.SCROLLBAR_PADDING,c=this.height_-2*this.SCROLLBAR_PADDING,d=this.width_;this.RTL||(d-=this.SCROLLBAR_PADDING);return{viewHeight:c,viewWidth:d,contentHeight:a.height*this.workspace_.scale+2*this.MARGIN,contentWidth:a.width*this.workspace_.scale+2*this.MARGIN,viewTop:-this.workspace_.scrollY+a.y,viewLeft:-this.workspace_.scrollX,
@@ -1557,8 +1566,7 @@ Blockly.VerticalFlyout.prototype.position=function(){if(this.isVisible()){var a=
 Blockly.VerticalFlyout.prototype.setBackgroundPath_=function(a,b){var c=this.toolboxPosition_==Blockly.TOOLBOX_AT_RIGHT,d=a+this.CORNER_RADIUS;d=["M "+(c?d:0)+",0"];d.push("h",c?-a:a);d.push("a",this.CORNER_RADIUS,this.CORNER_RADIUS,0,0,c?0:1,c?-this.CORNER_RADIUS:this.CORNER_RADIUS,this.CORNER_RADIUS);d.push("v",Math.max(0,b));d.push("a",this.CORNER_RADIUS,this.CORNER_RADIUS,0,0,c?0:1,c?this.CORNER_RADIUS:-this.CORNER_RADIUS,this.CORNER_RADIUS);d.push("h",c?a:-a);d.push("z");this.svgBackground_.setAttribute("d",
 d.join(" "))};Blockly.VerticalFlyout.prototype.scrollToStart=function(){this.scrollbar_.set(0)};Blockly.VerticalFlyout.prototype.wheel_=function(a){var b=a.deltaY;if(b){goog.userAgent.GECKO&&(b*=10);var c=this.getMetrics_();b=c.viewTop-c.contentTop+b;b=Math.min(b,c.contentHeight-c.viewHeight);b=Math.max(b,0);this.scrollbar_.set(b);Blockly.WidgetDiv.hide()}a.preventDefault();a.stopPropagation()};
 Blockly.VerticalFlyout.prototype.layout_=function(a,b){this.workspace_.scale=this.targetWorkspace_.scale;for(var c=this.MARGIN,d=this.RTL?c:c+Blockly.BlockSvg.TAB_WIDTH,e=0,f;f=a[e];e++)if("block"==f.type){f=f.block;for(var g=f.getDescendants(),h=0,k;k=g[h];h++)k.isInFlyout=!0;f.render();g=f.getSvgRoot();h=f.getHeightWidth();f.moveBy(d,c);k=this.createRect_(f,this.RTL?d-h.width:d,c,h,e);this.addBlockListeners_(g,f,k);c+=h.height+b[e]}else"button"==f.type&&(this.initFlyoutButton_(f.button,d,c),c+=
-f.button.height+b[e])};Blockly.VerticalFlyout.prototype.isDragTowardWorkspace=function(a){a=Math.atan2(a.y,a.x)/Math.PI*180;var b=this.dragAngleRange_;if(this.toolboxPosition_==Blockly.TOOLBOX_AT_LEFT){if(a<b&&a>-b)return!0}else if(a<-180+b||a>180-b)return!0;return!1};
-Blockly.VerticalFlyout.prototype.getClientRect=function(){if(!this.svgGroup_)return null;var a=this.svgGroup_.getBoundingClientRect(),b=a.left;a=a.width;return this.toolboxPosition_==Blockly.TOOLBOX_AT_LEFT?new goog.math.Rect(b-1E9,-1E9,1E9+a,2E9):new goog.math.Rect(b,-1E9,1E9+a,2E9)};
+f.button.height+b[e])};Blockly.VerticalFlyout.prototype.isDragTowardWorkspace=function(a){a=Math.atan2(a.y,a.x)/Math.PI*180;var b=this.dragAngleRange_;return a<b&&a>-b||a<-180+b||a>180-b?!0:!1};Blockly.VerticalFlyout.prototype.getClientRect=function(){if(!this.svgGroup_)return null;var a=this.svgGroup_.getBoundingClientRect(),b=a.left;a=a.width;return this.toolboxPosition_==Blockly.TOOLBOX_AT_LEFT?new goog.math.Rect(b-1E9,-1E9,1E9+a,2E9):new goog.math.Rect(b,-1E9,1E9+a,2E9)};
 Blockly.VerticalFlyout.prototype.reflowInternal_=function(){this.workspace_.scale=this.targetWorkspace_.scale;for(var a=0,b=this.workspace_.getTopBlocks(!1),c=0,d;d=b[c];c++){var e=d.getHeightWidth().width;d.outputConnection&&(e-=Blockly.BlockSvg.TAB_WIDTH);a=Math.max(a,e)}for(c=0;d=this.buttons_[c];c++)a=Math.max(a,d.width);a+=1.5*this.MARGIN+Blockly.BlockSvg.TAB_WIDTH;a*=this.workspace_.scale;a+=Blockly.Scrollbar.scrollbarThickness;if(this.width_!=a){for(c=0;d=b[c];c++)this.RTL&&(e=d.getRelativeToSurfaceXY().x,
 d.moveBy(a/this.workspace_.scale-this.MARGIN-Blockly.BlockSvg.TAB_WIDTH-e,0)),d.flyoutRect_&&this.moveRectToBlock_(d.flyoutRect_,d);if(this.RTL)for(c=0;d=this.buttons_[c];c++)b=d.getPosition().y,d.moveTo(a/this.workspace_.scale-d.width-this.MARGIN-Blockly.BlockSvg.TAB_WIDTH,b);this.width_=a;this.targetWorkspace_.resize()}};Blockly.Toolbox=function(a){this.workspace_=a;this.RTL=a.options.RTL;this.horizontalLayout_=a.options.horizontalLayout;this.toolboxPosition=a.options.toolboxPosition;this.config_={indentWidth:19,cssRoot:"blocklyTreeRoot",cssHideRoot:"blocklyHidden",cssItem:"",cssTreeRow:"blocklyTreeRow",cssItemLabel:"blocklyTreeLabel",cssTreeIcon:"blocklyTreeIcon",cssExpandedFolderIcon:"blocklyTreeIconOpen",cssFileIcon:"blocklyTreeIconNone",cssSelectedRow:"blocklyTreeSelected"};this.treeSeparatorConfig_={cssTreeRow:"blocklyTreeSeparator"};
 this.horizontalLayout_&&(this.config_.cssTreeRow+=a.RTL?" blocklyHorizontalTreeRtl":" blocklyHorizontalTree",this.treeSeparatorConfig_.cssTreeRow="blocklyTreeSeparatorHorizontal "+(a.RTL?"blocklyHorizontalTreeRtl":"blocklyHorizontalTree"),this.config_.cssTreeIcon="")};Blockly.Toolbox.prototype.width=0;Blockly.Toolbox.prototype.height=0;Blockly.Toolbox.prototype.selectedOption_=null;Blockly.Toolbox.prototype.lastCategory_=null;
@@ -1590,21 +1598,21 @@ Blockly.Css.CONTENT=[".blocklySvg {","background-color: #fff;","outline: none;",
 "}",".blocklyDisabled>.blocklyPath {","fill-opacity: .5;","stroke-opacity: .5;","}",".blocklyDisabled>.blocklyPathLight,",".blocklyDisabled>.blocklyPathDark {","display: none;","}",".blocklyText {","cursor: default;","fill: #fff;","font-family: sans-serif;","font-size: 11pt;","}",".blocklyNonEditableText>text {","pointer-events: none;","}",".blocklyNonEditableText>rect,",".blocklyEditableText>rect {","fill: #fff;","fill-opacity: .6;","}",".blocklyNonEditableText>text,",".blocklyEditableText>text {",
 "fill: #000;","}",".blocklyEditableText:hover>rect {","stroke: #fff;","stroke-width: 2;","}",".blocklyBubbleText {","fill: #000;","}",".blocklyFlyout {","position: absolute;","z-index: 20;","}",".blocklyFlyoutButton {","fill: #888;","cursor: default;","}",".blocklyFlyoutButtonShadow {","fill: #666;","}",".blocklyFlyoutButton:hover {","fill: #aaa;","}",".blocklyFlyoutLabel {","cursor: default;","}",".blocklyFlyoutLabelBackground {","opacity: 0;","}",".blocklyFlyoutLabelText {","fill: #000;","}",".blocklySvg text, .blocklyBlockDragSurface text {",
 "user-select: none;","-moz-user-select: none;","-ms-user-select: none;","-webkit-user-select: none;","cursor: inherit;","}",".blocklyHidden {","display: none;","}",".blocklyFieldDropdown:not(.blocklyHidden) {","display: block;","}",".blocklyIconGroup {","cursor: default;","}",".blocklyIconGroup:not(:hover),",".blocklyIconGroupReadonly {","opacity: .6;","}",".blocklyIconShape {","fill: #00f;","stroke: #fff;","stroke-width: 1px;","}",".blocklyIconSymbol {","fill: #fff;","}",".blocklyMinimalBody {",
-"margin: 0;","padding: 0;","}",".blocklyCommentTextarea {","background-color: #ffc;","border: 0;","margin: 0;","padding: 2px;","resize: none;","}",".blocklyHtmlInput {","border: none;","border-radius: 4px;","font-family: sans-serif;","height: 100%;","margin: 0;","outline: none;","padding: 0 1px;","width: 100%","}",".blocklyMainBackground {","stroke-width: 1;","stroke: #c6c6c6;","}",".blocklyMutatorBackground {","fill: #fff;","stroke: #ddd;","stroke-width: 1;","}",".blocklyFlyoutBackground {","fill: #ddd;",
-"fill-opacity: .8;","}",".blocklyTransparentBackground {","opacity: 0;","}",".blocklyMainWorkspaceScrollbar {","z-index: 20;","}",".blocklyFlyoutScrollbar {","z-index: 30;","}",".blocklyScrollbarHorizontal, .blocklyScrollbarVertical {","position: absolute;","outline: none;","}",".blocklyScrollbarBackground {","opacity: 0;","}",".blocklyScrollbarHandle {","fill: #ccc;","}",".blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,",".blocklyScrollbarHandle:hover {","fill: #bbb;","}",".blocklyZoom>image {",
-"opacity: .4;","}",".blocklyZoom>image:hover {","opacity: .6;","}",".blocklyZoom>image:active {","opacity: .8;","}",".blocklyFlyout .blocklyScrollbarHandle {","fill: #bbb;","}",".blocklyFlyout .blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,",".blocklyFlyout .blocklyScrollbarHandle:hover {","fill: #aaa;","}",".blocklyInvalidInput {","background: #faa;","}",".blocklyAngleCircle {","stroke: #444;","stroke-width: 1;","fill: #ddd;","fill-opacity: .8;","}",".blocklyAngleMarks {","stroke: #444;",
-"stroke-width: 1;","}",".blocklyAngleGauge {","fill: #f88;","fill-opacity: .8;","}",".blocklyAngleLine {","stroke: #f00;","stroke-width: 2;","stroke-linecap: round;","pointer-events: none;","}",".blocklyContextMenu {","border-radius: 4px;","}",".blocklyDropdownMenu {","padding: 0 !important;","max-height: 300px !important;","}",".blocklyWidgetDiv .goog-option-selected .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-option-selected .goog-menuitem-icon {","background: url(<<<PATH>>>/sprites.png) no-repeat -48px -16px !important;",
-"}",".blocklyToolboxDiv {","background-color: #ddd;","overflow-x: visible;","overflow-y: auto;","position: absolute;","user-select: none;","-moz-user-select: none;","-ms-user-select: none;","-webkit-user-select: none;","z-index: 70;","-webkit-tap-highlight-color: transparent;","}",".blocklyTreeRoot {","padding: 4px 0;","}",".blocklyTreeRoot:focus {","outline: none;","}",".blocklyTreeRow {","height: 22px;","line-height: 22px;","margin-bottom: 3px;","padding-right: 8px;","white-space: nowrap;","}",
-".blocklyHorizontalTree {","float: left;","margin: 1px 5px 8px 0;","}",".blocklyHorizontalTreeRtl {","float: right;","margin: 1px 0 8px 5px;","}",'.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {',"margin-left: 8px;","}",".blocklyTreeRow:not(.blocklyTreeSelected):hover {","background-color: #e4e4e4;","}",".blocklyTreeSeparator {","border-bottom: solid #e5e5e5 1px;","height: 0;","margin: 5px 0;","}",".blocklyTreeSeparatorHorizontal {","border-right: solid #e5e5e5 1px;","width: 0;","padding: 5px 0;",
-"margin: 0 5px;","}",".blocklyTreeIcon {","background-image: url(<<<PATH>>>/sprites.png);","height: 16px;","vertical-align: middle;","width: 16px;","}",".blocklyTreeIconClosedLtr {","background-position: -32px -1px;","}",".blocklyTreeIconClosedRtl {","background-position: 0 -1px;","}",".blocklyTreeIconOpen {","background-position: -16px -1px;","}",".blocklyTreeSelected>.blocklyTreeIconClosedLtr {","background-position: -32px -17px;","}",".blocklyTreeSelected>.blocklyTreeIconClosedRtl {","background-position: 0 -17px;",
-"}",".blocklyTreeSelected>.blocklyTreeIconOpen {","background-position: -16px -17px;","}",".blocklyTreeIconNone,",".blocklyTreeSelected>.blocklyTreeIconNone {","background-position: -48px -1px;","}",".blocklyTreeLabel {","cursor: default;","font-family: sans-serif;","font-size: 16px;","padding: 0 3px;","vertical-align: middle;","}",".blocklyToolboxDelete .blocklyTreeLabel {",'cursor: url("<<<PATH>>>/handdelete.cur"), auto;',"}",".blocklyTreeSelected .blocklyTreeLabel {","color: #fff;","}",".blocklyWidgetDiv .goog-palette {",
-"outline: none;","cursor: default;","}",".blocklyWidgetDiv .goog-palette-table {","border: 1px solid #666;","border-collapse: collapse;","}",".blocklyWidgetDiv .goog-palette-cell {","height: 13px;","width: 15px;","margin: 0;","border: 0;","text-align: center;","vertical-align: middle;","border-right: 1px solid #666;","font-size: 1px;","}",".blocklyWidgetDiv .goog-palette-colorswatch {","position: relative;","height: 13px;","width: 15px;","border: 1px solid #666;","}",".blocklyWidgetDiv .goog-palette-cell-hover .goog-palette-colorswatch {",
-"border: 1px solid #FFF;","}",".blocklyWidgetDiv .goog-palette-cell-selected .goog-palette-colorswatch {","border: 1px solid #000;","color: #fff;","}",".blocklyWidgetDiv .goog-menu {","background: #fff;","border-color: #ccc #666 #666 #ccc;","border-style: solid;","border-width: 1px;","cursor: default;","font: normal 13px Arial, sans-serif;","margin: 0;","outline: none;","padding: 4px 0;","position: absolute;","overflow-y: auto;","overflow-x: hidden;","max-height: 100%;","z-index: 20000;","}",".blocklyWidgetDiv .goog-menuitem {",
-"color: #000;","font: normal 13px Arial, sans-serif;","list-style: none;","margin: 0;","padding: 4px 7em 4px 28px;","white-space: nowrap;","}",".blocklyWidgetDiv .goog-menuitem.goog-menuitem-rtl {","padding-left: 7em;","padding-right: 28px;","}",".blocklyWidgetDiv .goog-menu-nocheckbox .goog-menuitem,",".blocklyWidgetDiv .goog-menu-noicon .goog-menuitem {","padding-left: 12px;","}",".blocklyWidgetDiv .goog-menu-noaccel .goog-menuitem {","padding-right: 20px;","}",".blocklyWidgetDiv .goog-menuitem-content {",
-"color: #000;","font: normal 13px Arial, sans-serif;","}",".blocklyWidgetDiv .goog-menuitem-disabled .goog-menuitem-accel,",".blocklyWidgetDiv .goog-menuitem-disabled .goog-menuitem-content {","color: #ccc !important;","}",".blocklyWidgetDiv .goog-menuitem-disabled .goog-menuitem-icon {","opacity: 0.3;","filter: alpha(opacity=30);","}",".blocklyWidgetDiv .goog-menuitem-highlight,",".blocklyWidgetDiv .goog-menuitem-hover {","background-color: #d6e9f8;","border-color: #d6e9f8;","border-style: dotted;",
-"border-width: 1px 0;","padding-bottom: 3px;","padding-top: 3px;","}",".blocklyWidgetDiv .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-menuitem-icon {","background-repeat: no-repeat;","height: 16px;","left: 6px;","position: absolute;","right: auto;","vertical-align: middle;","width: 16px;","}",".blocklyWidgetDiv .goog-menuitem-rtl .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-menuitem-rtl .goog-menuitem-icon {","left: auto;","right: 6px;","}",".blocklyWidgetDiv .goog-option-selected .goog-menuitem-checkbox,",
-".blocklyWidgetDiv .goog-option-selected .goog-menuitem-icon {","background: url(//ssl.gstatic.com/editor/editortoolbar.png) no-repeat -512px 0;","}",".blocklyWidgetDiv .goog-menuitem-accel {","color: #999;","direction: ltr;","left: auto;","padding: 0 6px;","position: absolute;","right: 0;","text-align: right;","}",".blocklyWidgetDiv .goog-menuitem-rtl .goog-menuitem-accel {","left: 0;","right: auto;","text-align: left;","}",".blocklyWidgetDiv .goog-menuitem-mnemonic-hint {","text-decoration: underline;",
-"}",".blocklyWidgetDiv .goog-menuitem-mnemonic-separator {","color: #999;","font-size: 12px;","padding-left: 4px;","}",".blocklyWidgetDiv .goog-menuseparator {","border-top: 1px solid #ccc;","margin: 4px 0;","padding: 0;","}",""];Blockly.WidgetDiv={};Blockly.WidgetDiv.DIV=null;Blockly.WidgetDiv.owner_=null;Blockly.WidgetDiv.dispose_=null;Blockly.WidgetDiv.createDom=function(){Blockly.WidgetDiv.DIV||(Blockly.WidgetDiv.DIV=goog.dom.createDom("DIV","blocklyWidgetDiv"),document.body.appendChild(Blockly.WidgetDiv.DIV))};
+"margin: 0;","padding: 0;","}",".blocklyCommentTextarea {","background-color: #ffc;","border: 0;","outline: 0;","margin: 0;","padding: 2px;","resize: none;","display: block;","overflow: hidden;","}",".blocklyHtmlInput {","border: none;","border-radius: 4px;","font-family: sans-serif;","height: 100%;","margin: 0;","outline: none;","padding: 0 1px;","width: 100%","}",".blocklyMainBackground {","stroke-width: 1;","stroke: #c6c6c6;","}",".blocklyMutatorBackground {","fill: #fff;","stroke: #ddd;","stroke-width: 1;",
+"}",".blocklyFlyoutBackground {","fill: #ddd;","fill-opacity: .8;","}",".blocklyTransparentBackground {","opacity: 0;","}",".blocklyMainWorkspaceScrollbar {","z-index: 20;","}",".blocklyFlyoutScrollbar {","z-index: 30;","}",".blocklyScrollbarHorizontal, .blocklyScrollbarVertical {","position: absolute;","outline: none;","}",".blocklyScrollbarBackground {","opacity: 0;","}",".blocklyScrollbarHandle {","fill: #ccc;","}",".blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,",".blocklyScrollbarHandle:hover {",
+"fill: #bbb;","}",".blocklyZoom>image {","opacity: .4;","}",".blocklyZoom>image:hover {","opacity: .6;","}",".blocklyZoom>image:active {","opacity: .8;","}",".blocklyFlyout .blocklyScrollbarHandle {","fill: #bbb;","}",".blocklyFlyout .blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,",".blocklyFlyout .blocklyScrollbarHandle:hover {","fill: #aaa;","}",".blocklyInvalidInput {","background: #faa;","}",".blocklyAngleCircle {","stroke: #444;","stroke-width: 1;","fill: #ddd;","fill-opacity: .8;",
+"}",".blocklyAngleMarks {","stroke: #444;","stroke-width: 1;","}",".blocklyAngleGauge {","fill: #f88;","fill-opacity: .8;","}",".blocklyAngleLine {","stroke: #f00;","stroke-width: 2;","stroke-linecap: round;","pointer-events: none;","}",".blocklyContextMenu {","border-radius: 4px;","}",".blocklyDropdownMenu {","padding: 0 !important;","max-height: 300px !important;","}",".blocklyWidgetDiv .goog-option-selected .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-option-selected .goog-menuitem-icon {",
+"background: url(<<<PATH>>>/sprites.png) no-repeat -48px -16px !important;","}",".blocklyToolboxDiv {","background-color: #ddd;","overflow-x: visible;","overflow-y: auto;","position: absolute;","user-select: none;","-moz-user-select: none;","-ms-user-select: none;","-webkit-user-select: none;","z-index: 70;","-webkit-tap-highlight-color: transparent;","}",".blocklyTreeRoot {","padding: 4px 0;","}",".blocklyTreeRoot:focus {","outline: none;","}",".blocklyTreeRow {","height: 22px;","line-height: 22px;",
+"margin-bottom: 3px;","padding-right: 8px;","white-space: nowrap;","}",".blocklyHorizontalTree {","float: left;","margin: 1px 5px 8px 0;","}",".blocklyHorizontalTreeRtl {","float: right;","margin: 1px 0 8px 5px;","}",'.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {',"margin-left: 8px;","}",".blocklyTreeRow:not(.blocklyTreeSelected):hover {","background-color: #e4e4e4;","}",".blocklyTreeSeparator {","border-bottom: solid #e5e5e5 1px;","height: 0;","margin: 5px 0;","}",".blocklyTreeSeparatorHorizontal {",
+"border-right: solid #e5e5e5 1px;","width: 0;","padding: 5px 0;","margin: 0 5px;","}",".blocklyTreeIcon {","background-image: url(<<<PATH>>>/sprites.png);","height: 16px;","vertical-align: middle;","width: 16px;","}",".blocklyTreeIconClosedLtr {","background-position: -32px -1px;","}",".blocklyTreeIconClosedRtl {","background-position: 0 -1px;","}",".blocklyTreeIconOpen {","background-position: -16px -1px;","}",".blocklyTreeSelected>.blocklyTreeIconClosedLtr {","background-position: -32px -17px;",
+"}",".blocklyTreeSelected>.blocklyTreeIconClosedRtl {","background-position: 0 -17px;","}",".blocklyTreeSelected>.blocklyTreeIconOpen {","background-position: -16px -17px;","}",".blocklyTreeIconNone,",".blocklyTreeSelected>.blocklyTreeIconNone {","background-position: -48px -1px;","}",".blocklyTreeLabel {","cursor: default;","font-family: sans-serif;","font-size: 16px;","padding: 0 3px;","vertical-align: middle;","}",".blocklyToolboxDelete .blocklyTreeLabel {",'cursor: url("<<<PATH>>>/handdelete.cur"), auto;',
+"}",".blocklyTreeSelected .blocklyTreeLabel {","color: #fff;","}",".blocklyWidgetDiv .goog-palette {","outline: none;","cursor: default;","}",".blocklyWidgetDiv .goog-palette-table {","border: 1px solid #666;","border-collapse: collapse;","}",".blocklyWidgetDiv .goog-palette-cell {","height: 13px;","width: 15px;","margin: 0;","border: 0;","text-align: center;","vertical-align: middle;","border-right: 1px solid #666;","font-size: 1px;","}",".blocklyWidgetDiv .goog-palette-colorswatch {","position: relative;",
+"height: 13px;","width: 15px;","border: 1px solid #666;","}",".blocklyWidgetDiv .goog-palette-cell-hover .goog-palette-colorswatch {","border: 1px solid #FFF;","}",".blocklyWidgetDiv .goog-palette-cell-selected .goog-palette-colorswatch {","border: 1px solid #000;","color: #fff;","}",".blocklyWidgetDiv .goog-menu {","background: #fff;","border-color: #ccc #666 #666 #ccc;","border-style: solid;","border-width: 1px;","cursor: default;","font: normal 13px Arial, sans-serif;","margin: 0;","outline: none;",
+"padding: 4px 0;","position: absolute;","overflow-y: auto;","overflow-x: hidden;","max-height: 100%;","z-index: 20000;","}",".blocklyWidgetDiv .goog-menuitem {","color: #000;","font: normal 13px Arial, sans-serif;","list-style: none;","margin: 0;","padding: 4px 7em 4px 28px;","white-space: nowrap;","}",".blocklyWidgetDiv .goog-menuitem.goog-menuitem-rtl {","padding-left: 7em;","padding-right: 28px;","}",".blocklyWidgetDiv .goog-menu-nocheckbox .goog-menuitem,",".blocklyWidgetDiv .goog-menu-noicon .goog-menuitem {",
+"padding-left: 12px;","}",".blocklyWidgetDiv .goog-menu-noaccel .goog-menuitem {","padding-right: 20px;","}",".blocklyWidgetDiv .goog-menuitem-content {","color: #000;","font: normal 13px Arial, sans-serif;","}",".blocklyWidgetDiv .goog-menuitem-disabled .goog-menuitem-accel,",".blocklyWidgetDiv .goog-menuitem-disabled .goog-menuitem-content {","color: #ccc !important;","}",".blocklyWidgetDiv .goog-menuitem-disabled .goog-menuitem-icon {","opacity: 0.3;","filter: alpha(opacity=30);","}",".blocklyWidgetDiv .goog-menuitem-highlight,",
+".blocklyWidgetDiv .goog-menuitem-hover {","background-color: #d6e9f8;","border-color: #d6e9f8;","border-style: dotted;","border-width: 1px 0;","padding-bottom: 3px;","padding-top: 3px;","}",".blocklyWidgetDiv .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-menuitem-icon {","background-repeat: no-repeat;","height: 16px;","left: 6px;","position: absolute;","right: auto;","vertical-align: middle;","width: 16px;","}",".blocklyWidgetDiv .goog-menuitem-rtl .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-menuitem-rtl .goog-menuitem-icon {",
+"left: auto;","right: 6px;","}",".blocklyWidgetDiv .goog-option-selected .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-option-selected .goog-menuitem-icon {","background: url(//ssl.gstatic.com/editor/editortoolbar.png) no-repeat -512px 0;","}",".blocklyWidgetDiv .goog-menuitem-accel {","color: #999;","direction: ltr;","left: auto;","padding: 0 6px;","position: absolute;","right: 0;","text-align: right;","}",".blocklyWidgetDiv .goog-menuitem-rtl .goog-menuitem-accel {","left: 0;","right: auto;",
+"text-align: left;","}",".blocklyWidgetDiv .goog-menuitem-mnemonic-hint {","text-decoration: underline;","}",".blocklyWidgetDiv .goog-menuitem-mnemonic-separator {","color: #999;","font-size: 12px;","padding-left: 4px;","}",".blocklyWidgetDiv .goog-menuseparator {","border-top: 1px solid #ccc;","margin: 4px 0;","padding: 0;","}",""];Blockly.WidgetDiv={};Blockly.WidgetDiv.DIV=null;Blockly.WidgetDiv.owner_=null;Blockly.WidgetDiv.dispose_=null;Blockly.WidgetDiv.createDom=function(){Blockly.WidgetDiv.DIV||(Blockly.WidgetDiv.DIV=goog.dom.createDom("DIV","blocklyWidgetDiv"),document.body.appendChild(Blockly.WidgetDiv.DIV))};
 Blockly.WidgetDiv.show=function(a,b,c){Blockly.WidgetDiv.hide();Blockly.WidgetDiv.owner_=a;Blockly.WidgetDiv.dispose_=c;a=goog.style.getViewportPageOffset(document);Blockly.WidgetDiv.DIV.style.top=a.y+"px";Blockly.WidgetDiv.DIV.style.direction=b?"rtl":"ltr";Blockly.WidgetDiv.DIV.style.display="block"};
 Blockly.WidgetDiv.hide=function(){Blockly.WidgetDiv.owner_&&(Blockly.WidgetDiv.owner_=null,Blockly.WidgetDiv.DIV.style.display="none",Blockly.WidgetDiv.DIV.style.left="",Blockly.WidgetDiv.DIV.style.top="",Blockly.WidgetDiv.dispose_&&Blockly.WidgetDiv.dispose_(),Blockly.WidgetDiv.dispose_=null,goog.dom.removeChildren(Blockly.WidgetDiv.DIV))};Blockly.WidgetDiv.isVisible=function(){return!!Blockly.WidgetDiv.owner_};Blockly.WidgetDiv.hideIfOwner=function(a){Blockly.WidgetDiv.owner_==a&&Blockly.WidgetDiv.hide()};
 Blockly.WidgetDiv.position=function(a,b,c,d,e){b<d.y&&(b=d.y);e?a>c.width+d.x&&(a=c.width+d.x):a<d.x&&(a=d.x);Blockly.WidgetDiv.positionInternal_(a,b,c.height)};Blockly.WidgetDiv.positionInternal_=function(a,b,c){Blockly.WidgetDiv.DIV.style.left=a+"px";Blockly.WidgetDiv.DIV.style.top=b+"px";Blockly.WidgetDiv.DIV.style.height=c+"px"};
@@ -1613,7 +1621,7 @@ Blockly.createDom_=function(a,b){a.setAttribute("dir","LTR");goog.ui.Component.s
 e},d);Blockly.utils.createSvgElement("feGaussianBlur",{"in":"SourceAlpha",stdDeviation:1,result:"blur"},f);var g=Blockly.utils.createSvgElement("feSpecularLighting",{"in":"blur",surfaceScale:1,specularConstant:.5,specularExponent:10,"lighting-color":"white",result:"specOut"},f);Blockly.utils.createSvgElement("fePointLight",{x:-5E3,y:-1E4,z:2E4},g);Blockly.utils.createSvgElement("feComposite",{"in":"specOut",in2:"SourceAlpha",operator:"in",result:"specOut"},f);Blockly.utils.createSvgElement("feComposite",
 {"in":"SourceGraphic",in2:"specOut",operator:"arithmetic",k1:0,k2:1,k3:1,k4:0},f);b.embossFilterId=f.id;f=Blockly.utils.createSvgElement("pattern",{id:"blocklyDisabledPattern"+e,patternUnits:"userSpaceOnUse",width:10,height:10},d);Blockly.utils.createSvgElement("rect",{width:10,height:10,fill:"#aaa"},f);Blockly.utils.createSvgElement("path",{d:"M 0 0 L 10 10 M 10 0 L 0 10",stroke:"#cc0"},f);b.disabledPatternId=f.id;b.gridPattern=Blockly.Grid.createDom(e,b.gridOptions,d);return c};
 Blockly.createMainWorkspace_=function(a,b,c,d){b.parentWorkspace=null;var e=new Blockly.WorkspaceSvg(b,c,d);e.scale=b.zoomOptions.startScale;a.appendChild(e.createDom("blocklyMainBackground"));!b.hasCategories&&b.languageTree&&(c=e.addFlyout_("svg"),Blockly.utils.insertAfter_(c,a));e.translate(0,0);Blockly.mainWorkspace=e;b.readOnly||b.hasScrollbars||e.addChangeListener(function(){if(!e.isDragging()){var a=e.getMetrics(),c=a.viewLeft+a.absoluteLeft,d=a.viewTop+a.absoluteTop;if(a.contentTop<d||a.contentTop+
-a.contentHeight>a.viewHeight+d||a.contentLeft<(b.RTL?a.viewLeft:c)||a.contentLeft+a.contentWidth>(b.RTL?a.viewWidth:a.viewWidth+c))for(var k=e.getTopBlocks(!1),n=0,p;p=k[n];n++){var l=p.getRelativeToSurfaceXY(),m=p.getHeightWidth(),q=d+25-m.height-l.y;0<q&&p.moveBy(0,q);q=d+a.viewHeight-25-l.y;0>q&&p.moveBy(0,q);q=25+c-l.x-(b.RTL?0:m.width);0<q&&p.moveBy(q,0);l=c+a.viewWidth-25-l.x+(b.RTL?m.width:0);0>l&&p.moveBy(l,0)}}});Blockly.svgResize(e);Blockly.WidgetDiv.createDom();Blockly.Tooltip.createDom();
+a.contentHeight>a.viewHeight+d||a.contentLeft<(b.RTL?a.viewLeft:c)||a.contentLeft+a.contentWidth>(b.RTL?a.viewWidth:a.viewWidth+c))for(var k=e.getTopBlocks(!1),m=0,p;p=k[m];m++){var l=p.getRelativeToSurfaceXY(),n=p.getHeightWidth(),q=d+25-n.height-l.y;0<q&&p.moveBy(0,q);q=d+a.viewHeight-25-l.y;0>q&&p.moveBy(0,q);q=25+c-l.x-(b.RTL?0:n.width);0<q&&p.moveBy(q,0);l=c+a.viewWidth-25-l.x+(b.RTL?n.width:0);0>l&&p.moveBy(l,0)}}});Blockly.svgResize(e);Blockly.WidgetDiv.createDom();Blockly.Tooltip.createDom();
 return e};
 Blockly.init_=function(a){var b=a.options,c=a.getParentSvg();Blockly.bindEventWithChecks_(c.parentNode,"contextmenu",null,function(a){Blockly.utils.isTargetInput(a)||a.preventDefault()});c=Blockly.bindEventWithChecks_(window,"resize",null,function(){Blockly.hideChaff(!0);Blockly.svgResize(a)});a.setResizeHandlerWrapper(c);Blockly.inject.bindDocumentEvents_();b.languageTree&&(a.toolbox_?a.toolbox_.init(a):a.flyout_&&(a.flyout_.init(a),a.flyout_.show(b.languageTree.childNodes),a.flyout_.scrollToStart(),a.scrollX=
 a.flyout_.width_,b.toolboxPosition==Blockly.TOOLBOX_AT_RIGHT&&(a.scrollX*=-1),a.translate(a.scrollX,0)));b.hasScrollbars&&(a.scrollbar=new Blockly.ScrollbarPair(a),a.scrollbar.resize());b.hasSounds&&Blockly.inject.loadSounds_(b.pathToMedia,a)};
@@ -1627,6 +1635,7 @@ Blockly.copy_(Blockly.selected)):88!=a.keyCode||Blockly.selected.workspace.isFly
 Blockly.onContextMenu_=function(a){Blockly.utils.isTargetInput(a)||a.preventDefault()};Blockly.hideChaff=function(a){Blockly.Tooltip.hide();Blockly.WidgetDiv.hide();a||(a=Blockly.getMainWorkspace(),a.toolbox_&&a.toolbox_.flyout_&&a.toolbox_.flyout_.autoClose&&a.toolbox_.clearSelection())};Blockly.addChangeListener=function(a){console.warn("Deprecated call to Blockly.addChangeListener, use workspace.addChangeListener instead.");return Blockly.getMainWorkspace().addChangeListener(a)};
 Blockly.getMainWorkspace=function(){return Blockly.mainWorkspace};Blockly.alert=function(a,b){window.alert(a);b&&b()};Blockly.confirm=function(a,b){b(window.confirm(a))};Blockly.prompt=function(a,b,c){c(window.prompt(a,b))};Blockly.jsonInitFactory_=function(a){return function(){this.jsonInit(a)}};
 Blockly.defineBlocksWithJsonArray=function(a){for(var b=0,c;c=a[b];b++){var d=c.type;null==d||""===d?console.warn("Block definition #"+b+" in JSON array is missing a type attribute. Skipping."):(Blockly.Blocks[d]&&console.warn("Block definition #"+b+' in JSON array overwrites prior definition of "'+d+'".'),Blockly.Blocks[d]={init:Blockly.jsonInitFactory_(c)})}};
-Blockly.bindEventWithChecks_=function(a,b,c,d,e,f){var g=!1,h=function(a){var b=!e;a=Blockly.Touch.splitEventByTouches(a);for(var f=0,h;h=a[f];f++)if(!b||Blockly.Touch.shouldHandleEvent(h))Blockly.Touch.setClientFromTouch(h),c?d.call(c,h):d(h),g=!0};a.addEventListener(b,h,!1);var k=[[a,b,h]];if(b in Blockly.Touch.TOUCH_MAP)for(var n=function(a){h(a);var b=!f;g&&b&&a.preventDefault()},p=0,l;l=Blockly.Touch.TOUCH_MAP[b][p];p++)a.addEventListener(l,n,!1),k.push([a,l,n]);return k};
-Blockly.bindEvent_=function(a,b,c,d){var e=function(a){c?d.call(c,a):d(a)};a.addEventListener(b,e,!1);var f=[[a,b,e]];if(b in Blockly.Touch.TOUCH_MAP)for(var g=function(a){if(a.changedTouches&&1==a.changedTouches.length){var b=a.changedTouches[0];a.clientX=b.clientX;a.clientY=b.clientY}e(a);a.preventDefault()},h=0,k;k=Blockly.Touch.TOUCH_MAP[b][h];h++)a.addEventListener(k,g,!1),f.push([a,k,g]);return f};
-Blockly.unbindEvent_=function(a){for(;a.length;){var b=a.pop(),c=b[2];b[0].removeEventListener(b[1],c,!1)}return c};Blockly.isNumber=function(a){return/^\s*-?\d+(\.\d+)?\s*$/.test(a)};goog.global.console||(goog.global.console={log:function(){},warn:function(){}});goog.global.Blockly||(goog.global.Blockly={});goog.global.Blockly.getMainWorkspace=Blockly.getMainWorkspace;goog.global.Blockly.addChangeListener=Blockly.addChangeListener;
\ No newline at end of file
+Blockly.bindEventWithChecks_=function(a,b,c,d,e,f){var g=!1,h=function(a){var b=!e;a=Blockly.Touch.splitEventByTouches(a);for(var f=0,h;h=a[f];f++)if(!b||Blockly.Touch.shouldHandleEvent(h))Blockly.Touch.setClientFromTouch(h),c?d.call(c,h):d(h),g=!0},k=[];if(window&&window.PointerEvent&&b in Blockly.Touch.TOUCH_MAP)for(var m=0,p;p=Blockly.Touch.TOUCH_MAP[b][m];m++)a.addEventListener(p,h,!1),k.push([a,p,h]);else if(a.addEventListener(b,h,!1),k.push([a,b,h]),b in Blockly.Touch.TOUCH_MAP){var l=function(a){h(a);
+var b=!f;g&&b&&a.preventDefault()};for(m=0;p=Blockly.Touch.TOUCH_MAP[b][m];m++)a.addEventListener(p,l,!1),k.push([a,p,l])}return k};
+Blockly.bindEvent_=function(a,b,c,d){var e=function(a){c?d.call(c,a):d(a)},f=[];if(window&&window.PointerEvent&&b in Blockly.Touch.TOUCH_MAP)for(var g=0,h;h=Blockly.Touch.TOUCH_MAP[b][g];g++)a.addEventListener(h,e,!1),f.push([a,h,e]);else if(a.addEventListener(b,e,!1),f.push([a,b,e]),b in Blockly.Touch.TOUCH_MAP){var k=function(a){if(a.changedTouches&&1==a.changedTouches.length){var b=a.changedTouches[0];a.clientX=b.clientX;a.clientY=b.clientY}e(a);a.preventDefault()};for(g=0;h=Blockly.Touch.TOUCH_MAP[b][g];g++)a.addEventListener(h,
+k,!1),f.push([a,h,k])}return f};Blockly.unbindEvent_=function(a){for(;a.length;){var b=a.pop(),c=b[2];b[0].removeEventListener(b[1],c,!1)}return c};Blockly.isNumber=function(a){return/^\s*-?\d+(\.\d+)?\s*$/.test(a)};goog.global.console||(goog.global.console={log:function(){},warn:function(){}});goog.global.Blockly||(goog.global.Blockly={});goog.global.Blockly.getMainWorkspace=Blockly.getMainWorkspace;goog.global.Blockly.addChangeListener=Blockly.addChangeListener;
\ No newline at end of file
diff --git a/blockly_uncompressed.js b/blockly_uncompressed.js
index 8f111ae2d..edbaa8536 100644
--- a/blockly_uncompressed.js
+++ b/blockly_uncompressed.js
@@ -51,9 +51,9 @@ goog.addDependency("../../../" + dir + "/core/contextmenu.js", ['Blockly.Context
 goog.addDependency("../../../" + dir + "/core/css.js", ['Blockly.Css'], []);
 goog.addDependency("../../../" + dir + "/core/dragged_connection_manager.js", ['Blockly.DraggedConnectionManager'], ['Blockly.RenderedConnection', 'goog.math.Coordinate']);
 goog.addDependency("../../../" + dir + "/core/events/abstract.js", ['Blockly.Events.Abstract'], ['Blockly.Events', 'goog.array', 'goog.math.Coordinate']);
-goog.addDependency("../../../" + dir + "/core/events/block/change.js", ['Blockly.Events.BlockChange', 'Blockly.Events.Change'], ['Blockly.Events', 'goog.array', 'goog.math.Coordinate']);
-goog.addDependency("../../../" + dir + "/core/events/block/create.js", ['Blockly.Events.BlockCreate', 'Blockly.Events.Create'], ['Blockly.Events', 'goog.array', 'goog.math.Coordinate']);
-goog.addDependency("../../../" + dir + "/core/events/block/delete.js", ['Blockly.Events.BlockDelete', 'Blockly.Events.Delete'], ['Blockly.Events', 'goog.array', 'goog.math.Coordinate']);
+goog.addDependency("../../../" + dir + "/core/events/block/change.js", ['Blockly.Events.BlockChange', 'Blockly.Events.Change'], ['Blockly.Events', 'Blockly.Events.Abstract', 'goog.array', 'goog.math.Coordinate']);
+goog.addDependency("../../../" + dir + "/core/events/block/create.js", ['Blockly.Events.BlockCreate', 'Blockly.Events.Create'], ['Blockly.Events', 'Blockly.Events.Abstract', 'goog.array', 'goog.math.Coordinate']);
+goog.addDependency("../../../" + dir + "/core/events/block/delete.js", ['Blockly.Events.BlockDelete', 'Blockly.Events.Delete'], ['Blockly.Events', 'Blockly.Events.Abstract', 'goog.array', 'goog.math.Coordinate']);
 goog.addDependency("../../../" + dir + "/core/events/block/move.js", ['Blockly.Events.BlockMove', 'Blockly.Events.Move'], ['Blockly.Events', 'Blockly.Events.Abstract', 'goog.array', 'goog.math.Coordinate']);
 goog.addDependency("../../../" + dir + "/core/events/events.js", ['Blockly.Events'], ['goog.array', 'goog.math.Coordinate']);
 goog.addDependency("../../../" + dir + "/core/events/ui/ui_base.js", ['Blockly.Events.Ui'], ['Blockly.Events', 'Blockly.Events.Abstract', 'goog.array', 'goog.math.Coordinate']);
@@ -107,7 +107,7 @@ goog.addDependency("../../../" + dir + "/core/workspace.js", ['Blockly.Workspace
 goog.addDependency("../../../" + dir + "/core/workspace_audio.js", ['Blockly.WorkspaceAudio'], []);
 goog.addDependency("../../../" + dir + "/core/workspace_drag_surface_svg.js", ['Blockly.WorkspaceDragSurfaceSvg'], ['Blockly.utils', 'goog.asserts', 'goog.math.Coordinate']);
 goog.addDependency("../../../" + dir + "/core/workspace_dragger.js", ['Blockly.WorkspaceDragger'], ['goog.math.Coordinate', 'goog.asserts']);
-goog.addDependency("../../../" + dir + "/core/workspace_svg.js", ['Blockly.WorkspaceSvg'], ['Blockly.ConnectionDB', 'Blockly.constants', 'Blockly.Events.BlockCreate', 'Blockly.Gesture', 'Blockly.Grid', 'Blockly.Options', 'Blockly.ScrollbarPair', 'Blockly.Touch', 'Blockly.Trashcan', 'Blockly.VariablesDynamic', 'Blockly.Workspace', 'Blockly.WorkspaceAudio', 'Blockly.WorkspaceDragSurfaceSvg', 'Blockly.Xml', 'Blockly.ZoomControls', 'goog.array', 'goog.dom', 'goog.math.Coordinate', 'goog.userAgent']);
+goog.addDependency("../../../" + dir + "/core/workspace_svg.js", ['Blockly.WorkspaceSvg'], ['Blockly.ConnectionDB', 'Blockly.constants', 'Blockly.Events.BlockCreate', 'Blockly.Gesture', 'Blockly.Grid', 'Blockly.Options', 'Blockly.ScrollbarPair', 'Blockly.Touch', 'Blockly.TouchGesture', 'Blockly.Trashcan', 'Blockly.VariablesDynamic', 'Blockly.Workspace', 'Blockly.WorkspaceAudio', 'Blockly.WorkspaceDragSurfaceSvg', 'Blockly.Xml', 'Blockly.ZoomControls', 'goog.array', 'goog.dom', 'goog.math.Coordinate', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/xml.js", ['Blockly.Xml'], ['Blockly.Events.BlockCreate', 'Blockly.Events.VarCreate', 'goog.asserts', 'goog.dom']);
 goog.addDependency("../../../" + dir + "/core/zoom_controls.js", ['Blockly.ZoomControls'], ['Blockly.Touch', 'goog.dom']);
 goog.addDependency("../../alltests.js", [], []);
diff --git a/core/workspace_svg.js b/core/workspace_svg.js
index c976749d1..53ded712e 100644
--- a/core/workspace_svg.js
+++ b/core/workspace_svg.js
@@ -36,6 +36,7 @@ goog.require('Blockly.Grid');
 goog.require('Blockly.Options');
 goog.require('Blockly.ScrollbarPair');
 goog.require('Blockly.Touch');
+goog.require('Blockly.TouchGesture');
 goog.require('Blockly.Trashcan');
 goog.require('Blockly.VariablesDynamic');
 goog.require('Blockly.Workspace');
@@ -206,7 +207,7 @@ Blockly.WorkspaceSvg.prototype.scrollbar = null;
 
 /**
  * The current gesture in progress on this workspace, if any.
- * @type {Blockly.Gesture}
+ * @type {Blockly.TouchGesture}
  * @private
  */
 Blockly.WorkspaceSvg.prototype.currentGesture_ = null;
@@ -1847,12 +1848,13 @@ Blockly.WorkspaceSvg.prototype.removeToolboxCategoryCallback = function(key) {
  * Look up the gesture that is tracking this touch stream on this workspace.
  * May create a new gesture.
  * @param {!Event} e Mouse event or touch event.
- * @return {Blockly.Gesture} The gesture that is tracking this touch stream,
- *     or null if no valid gesture exists.
+ * @return {Blockly.TouchGesture} The gesture that is tracking this touch
+ *     stream, or null if no valid gesture exists.
  * @package
  */
 Blockly.WorkspaceSvg.prototype.getGesture = function(e) {
-  var isStart = (e.type == 'mousedown' || e.type == 'touchstart' || e.type == 'pointerdown');
+  var isStart = (e.type == 'mousedown' || e.type == 'touchstart' ||
+      e.type == 'pointerdown');
 
   var gesture = this.currentGesture_;
   if (gesture) {
@@ -1869,7 +1871,7 @@ Blockly.WorkspaceSvg.prototype.getGesture = function(e) {
   // No gesture existed on this workspace, but this looks like the start of a
   // new gesture.
   if (isStart) {
-    this.currentGesture_ = new Blockly.Gesture(e, this);
+    this.currentGesture_ = new Blockly.TouchGesture(e, this);
     return this.currentGesture_;
   }
   // No gesture existed and this event couldn't be the start of a new gesture.