Create base classes for block and variable events, instead of stuffing everything into Abstract

blockly_compressed.js

@@ -2,30 +2,27 @@
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+e.written||a in e.visited)){e.visited[a]=!0;if(a in e.requires)for(var b in e.requires[a])if(!f.isProvided(b))if(b in e.nameToPath)g(e.nameToPath[b]);else throw Error("Undefined nameToPath for "+b);a in d||(d[a]=!0,c.push(a))}};g(b);for(a=0;a<c.length;a++)b=c[a],this.dependencies_.written[b]=!0;for(a=0;a<c.length;a++)if(b=c[a]){var h=e.loadFlags[b]||{},k=h.lang||"es3";k=this.getTranspiler().needsTranspile(k);"goog"==h.module||k?this.importProcessedScript_(goog.basePath+b,"goog"==h.module,k):this.importScript_(goog.basePath+
+b)}else throw Error("Undefined script input");}else throw a="goog.require could not find: "+a,this.logToConsole(a),Error(a);},goog.DebugLoader.prototype.addDependency=function(a,b,c,d){var e;a=a.replace(/\\/g,"/");var f=this.dependencies_;d&&"boolean"!==typeof d||(d=d?{module:"goog"}:{});for(var g=0;e=b[g];g++)f.nameToPath[e]=a,f.loadFlags[a]=d;for(d=0;b=c[d];d++)a in f.requires||(f.requires[a]={}),f.requires[a][b]=!0},goog.DebugLoader.prototype.importScript_=function(a,b){(goog.global.CLOSURE_IMPORT_SCRIPT||
+goog.bind(this.writeScriptTag_,this))(a,b)&&(this.dependencies_.written[a]=!0)},goog.DebugLoader.prototype.importProcessedScript_=function(a,b,c){this.importScript_("",'goog.debugLoader_.retrieveAndExec_("'+a+'", '+b+", "+c+");")},goog.DebugLoader.prototype.retrieveAndExec_=function(a,b,c){if(!COMPILED){var d=a;a=this.normalizePath(a);var e=goog.global.CLOSURE_IMPORT_SCRIPT||goog.bind(this.writeScriptTag_,this),f=this.loadFileSync(a);if(null==f)throw Error('Load of "'+a+'" failed');c&&(f=this.getTranspiler().transpile(f,
+a));f=b?this.wrapModule_(a,f):f+("\n//# sourceURL="+a);goog.DebugLoader.IS_OLD_IE_&&this.oldIeWaiting_?(this.dependencies_.deferred[d]=f,this.queuedModules_.push(d)):e(a,f)}},goog.DebugLoader.prototype.wrapModule_=function(a,b){return goog.LOAD_MODULE_USING_EVAL&&goog.isDef(goog.global.JSON)?"goog.loadModule("+goog.global.JSON.stringify(b+"\n//# sourceURL="+a+"\n")+");":'goog.loadModule(function(exports) {"use strict";'+b+"\n;return exports});\n//# sourceURL="+a+"\n"},goog.DebugLoader.prototype.loadQueuedModules_=
+function(){var a=this.queuedModules_.length;if(0<a){var b=this.queuedModules_;this.queuedModules_=[];for(var c=0;c<a;c++)this.maybeProcessDeferredPath_(b[c])}this.oldIeWaiting_=!1},goog.DebugLoader.prototype.maybeProcessDeferredDep_=function(a){this.isDeferredModule_(a)&&this.allDepsAreAvailable_(a)&&(a=this.getPathFromDeps_(a),this.maybeProcessDeferredPath_(goog.basePath+a))},goog.DebugLoader.prototype.isDeferredModule_=function(a){var b=(a=this.getPathFromDeps_(a))&&this.dependencies_.loadFlags[a]||
+{},c=b.lang||"es3";return a&&("goog"==b.module||this.getTranspiler().needsTranspile(c))?goog.basePath+a in this.dependencies_.deferred:!1},goog.DebugLoader.prototype.allDepsAreAvailable_=function(a){if((a=this.getPathFromDeps_(a))&&a in this.dependencies_.requires)for(var b in this.dependencies_.requires[a])if(!this.isProvided(b)&&!this.isDeferredModule_(b))return!1;return!0},goog.DebugLoader.prototype.maybeProcessDeferredPath_=function(a){if(a in this.dependencies_.deferred){var b=this.dependencies_.deferred[a];
+delete this.dependencies_.deferred[a];goog.globalEval(b)}},goog.DebugLoader.prototype.writeScriptSrcNode_=function(a){goog.global.document.write('<script type="text/javascript" src="'+a+'">\x3c/script>')},goog.DebugLoader.prototype.appendScriptSrcNode_=function(a){var b=goog.global.document,c=b.createElement("script");c.type="text/javascript";c.src=a;c.defer=!1;c.async=!1;b.head.appendChild(c)},goog.DebugLoader.prototype.writeScriptTag_=function(a,b){if(this.inHtmlDocument()){var c=goog.global.document;
+if(!goog.ENABLE_CHROME_APP_SAFE_SCRIPT_LOADING&&"complete"==c.readyState){if(/\bdeps.js$/.test(a))return!1;throw Error('Cannot write "'+a+'" after document load');}if(void 0===b)if(goog.DebugLoader.IS_OLD_IE_){this.oldIeWaiting_=!0;var d=" onreadystatechange='goog.debugLoader_.onScriptLoad_(this, "+ ++this.lastNonModuleScriptIndex_+")' ";c.write('<script type="text/javascript" src="'+a+'"'+d+">\x3c/script>")}else goog.ENABLE_CHROME_APP_SAFE_SCRIPT_LOADING?this.appendScriptSrcNode_(a):this.writeScriptSrcNode_(a);
+else c.write('<script type="text/javascript">'+this.protectScriptTag_(b)+"\x3c/script>");return!0}return!1},goog.DebugLoader.prototype.protectScriptTag_=function(a){return a.replace(/<\/(SCRIPT)/ig,"\\x3c/$1")},goog.DebugLoader.prototype.onScriptLoad_=function(a,b){"complete"==a.readyState&&this.lastNonModuleScriptIndex_==b&&this.loadQueuedModules_();return!0},goog.DebugLoader.prototype.getPathFromDeps_=function(a){return a in this.dependencies_.nameToPath?this.dependencies_.nameToPath[a]:null},goog.DebugLoader.prototype.getTranspiler=
+function(){return goog.transpiler_},goog.DebugLoader.prototype.isProvided=function(a){return goog.isProvided_(a)},goog.DebugLoader.prototype.inHtmlDocument=function(){return goog.inHtmlDocument_()},goog.DebugLoader.prototype.logToConsole=function(a){goog.logToConsole_(a)},goog.DebugLoader.prototype.loadFileSync=function(a){return goog.loadFileSync_(a)},goog.DebugLoader.prototype.normalizePath=function(a){return goog.normalizePath_(a)},goog.debugLoader_=null,goog.registerDebugLoader=function(a){if(goog.debugLoader_)throw Error("Debug loader already registered!");
+if(!(a instanceof goog.DebugLoader))throw Error("Not a goog.DebugLoader.");goog.debugLoader_=a},goog.getLoader_=function(){if(!goog.debugLoader_&&goog.DEBUG_LOADER)throw Error("Loaded debug loader file but no loader was registered!");goog.debugLoader_||(goog.debugLoader_=new goog.DebugLoader);return goog.debugLoader_},function(){if(goog.DEBUG_LOADER){var a=new goog.DebugLoader;a.importScript_(goog.basePath+goog.DEBUG_LOADER)}goog.global.CLOSURE_NO_DEPS||(a=a||new goog.DebugLoader,goog.DEBUG_LOADER||
+goog.registerDebugLoader(a),a.importScript_(goog.basePath+"deps.js"))}());goog.debug={};goog.debug.Error=function(a){if(Error.captureStackTrace)Error.captureStackTrace(this,goog.debug.Error);else{var b=Error().stack;b&&(this.stack=b)}a&&(this.message=String(a));this.reportErrorToServer=!0};goog.inherits(goog.debug.Error,Error);goog.debug.Error.prototype.name="CustomError";goog.dom={};goog.dom.NodeType={ELEMENT:1,ATTRIBUTE:2,TEXT:3,CDATA_SECTION:4,ENTITY_REFERENCE:5,ENTITY:6,PROCESSING_INSTRUCTION:7,COMMENT:8,DOCUMENT:9,DOCUMENT_TYPE:10,DOCUMENT_FRAGMENT:11,NOTATION:12};goog.asserts={};goog.asserts.ENABLE_ASSERTS=goog.DEBUG;goog.asserts.AssertionError=function(a,b){goog.debug.Error.call(this,goog.asserts.subs_(a,b));this.messagePattern=a};goog.inherits(goog.asserts.AssertionError,goog.debug.Error);goog.asserts.AssertionError.prototype.name="AssertionError";goog.asserts.DEFAULT_ERROR_HANDLER=function(a){throw a;};goog.asserts.errorHandler_=goog.asserts.DEFAULT_ERROR_HANDLER;
 goog.asserts.subs_=function(a,b){for(var c=a.split("%s"),d="",e=c.length-1,f=0;f<e;f++)d+=c[f]+(f<b.length?b[f]:"%s");return d+c[e]};goog.asserts.doAssertFailure_=function(a,b,c,d){var e="Assertion failed";if(c){e+=": "+c;var f=d}else a&&(e+=": "+a,f=b);a=new goog.asserts.AssertionError(""+e,f||[]);goog.asserts.errorHandler_(a)};goog.asserts.setErrorHandler=function(a){goog.asserts.ENABLE_ASSERTS&&(goog.asserts.errorHandler_=a)};
 goog.asserts.assert=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!a&&goog.asserts.doAssertFailure_("",null,b,Array.prototype.slice.call(arguments,2));return a};goog.asserts.fail=function(a,b){goog.asserts.ENABLE_ASSERTS&&goog.asserts.errorHandler_(new goog.asserts.AssertionError("Failure"+(a?": "+a:""),Array.prototype.slice.call(arguments,1)))};
 goog.asserts.assertNumber=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!goog.isNumber(a)&&goog.asserts.doAssertFailure_("Expected number but got %s: %s.",[goog.typeOf(a),a],b,Array.prototype.slice.call(arguments,2));return a};goog.asserts.assertString=function(a,b,c){goog.asserts.ENABLE_ASSERTS&&!goog.isString(a)&&goog.asserts.doAssertFailure_("Expected string but got %s: %s.",[goog.typeOf(a),a],b,Array.prototype.slice.call(arguments,2));return a};
@@ -136,29 +120,7 @@ goog.string.compareElements_(h[2],k[2]);h=h[3];k=k[3]}while(0==c)}return c};goog
 goog.string.isLowerCamelCase=function(a){return/^[a-z]+([A-Z][a-z]*)*$/.test(a)};goog.string.isUpperCamelCase=function(a){return/^([A-Z][a-z]*)+$/.test(a)};goog.string.toCamelCase=function(a){return String(a).replace(/\-([a-z])/g,function(a,c){return c.toUpperCase()})};goog.string.toSelectorCase=function(a){return String(a).replace(/([A-Z])/g,"-$1").toLowerCase()};
 goog.string.toTitleCase=function(a,b){var c=goog.isString(b)?goog.string.regExpEscape(b):"\\s";return a.replace(new RegExp("(^"+(c?"|["+c+"]+":"")+")([a-z])","g"),function(a,b,c){return b+c.toUpperCase()})};goog.string.capitalize=function(a){return String(a.charAt(0)).toUpperCase()+String(a.substr(1)).toLowerCase()};goog.string.parseInt=function(a){isFinite(a)&&(a=String(a));return goog.isString(a)?/^\s*-?0x/i.test(a)?parseInt(a,16):parseInt(a,10):NaN};
 goog.string.splitLimit=function(a,b,c){a=a.split(b);for(var d=[];0<c&&a.length;)d.push(a.shift()),c--;a.length&&d.push(a.join(b));return d};goog.string.lastComponent=function(a,b){if(b)"string"==typeof b&&(b=[b]);else return a;for(var c=-1,d=0;d<b.length;d++)if(""!=b[d]){var e=a.lastIndexOf(b[d]);e>c&&(c=e)}return-1==c?a:a.slice(c+1)};
-goog.string.editDistance=function(a,b){var c=[],d=[];if(a==b)return 0;if(!a.length||!b.length)return Math.max(a.length,b.length);for(var e=0;e<b.length+1;e++)c[e]=e;for(e=0;e<a.length;e++){d[0]=e+1;for(var f=0;f<b.length;f++)d[f+1]=Math.min(d[f]+1,c[f+1]+1,c[f]+Number(a[e]!=b[f]));for(f=0;f<c.length;f++)c[f]=d[f]}return d[b.length]};goog.Thenable=function(){};goog.Thenable.prototype.then=function(a,b,c){};goog.Thenable.IMPLEMENTED_BY_PROP="$goog_Thenable";goog.Thenable.addImplementation=function(a){a.prototype.then=a.prototype.then;COMPILED?a.prototype[goog.Thenable.IMPLEMENTED_BY_PROP]=!0:a.prototype.$goog_Thenable=!0};goog.Thenable.isImplementedBy=function(a){if(!a)return!1;try{return COMPILED?!!a[goog.Thenable.IMPLEMENTED_BY_PROP]:!!a.$goog_Thenable}catch(b){return!1}};goog.async={};goog.async.FreeList=function(a,b,c){this.limit_=c;this.create_=a;this.reset_=b;this.occupants_=0;this.head_=null};goog.async.FreeList.prototype.get=function(){if(0<this.occupants_){this.occupants_--;var a=this.head_;this.head_=a.next;a.next=null}else a=this.create_();return a};goog.async.FreeList.prototype.put=function(a){this.reset_(a);this.occupants_<this.limit_&&(this.occupants_++,a.next=this.head_,this.head_=a)};goog.async.FreeList.prototype.occupants=function(){return this.occupants_};goog.async.WorkQueue=function(){this.workTail_=this.workHead_=null};goog.async.WorkQueue.DEFAULT_MAX_UNUSED=100;goog.async.WorkQueue.freelist_=new goog.async.FreeList(function(){return new goog.async.WorkItem},function(a){a.reset()},goog.async.WorkQueue.DEFAULT_MAX_UNUSED);goog.async.WorkQueue.prototype.add=function(a,b){var c=this.getUnusedItem_();c.set(a,b);this.workTail_?this.workTail_.next=c:(goog.asserts.assert(!this.workHead_),this.workHead_=c);this.workTail_=c};
-goog.async.WorkQueue.prototype.remove=function(){var a=null;this.workHead_&&(a=this.workHead_,this.workHead_=this.workHead_.next,this.workHead_||(this.workTail_=null),a.next=null);return a};goog.async.WorkQueue.prototype.returnUnused=function(a){goog.async.WorkQueue.freelist_.put(a)};goog.async.WorkQueue.prototype.getUnusedItem_=function(){return goog.async.WorkQueue.freelist_.get()};goog.async.WorkItem=function(){this.next=this.scope=this.fn=null};
-goog.async.WorkItem.prototype.set=function(a,b){this.fn=a;this.scope=b;this.next=null};goog.async.WorkItem.prototype.reset=function(){this.next=this.scope=this.fn=null};goog.debug.entryPointRegistry={};goog.debug.EntryPointMonitor=function(){};goog.debug.entryPointRegistry.refList_=[];goog.debug.entryPointRegistry.monitors_=[];goog.debug.entryPointRegistry.monitorsMayExist_=!1;goog.debug.entryPointRegistry.register=function(a){goog.debug.entryPointRegistry.refList_[goog.debug.entryPointRegistry.refList_.length]=a;if(goog.debug.entryPointRegistry.monitorsMayExist_)for(var b=goog.debug.entryPointRegistry.monitors_,c=0;c<b.length;c++)a(goog.bind(b[c].wrap,b[c]))};
-goog.debug.entryPointRegistry.monitorAll=function(a){goog.debug.entryPointRegistry.monitorsMayExist_=!0;for(var b=goog.bind(a.wrap,a),c=0;c<goog.debug.entryPointRegistry.refList_.length;c++)goog.debug.entryPointRegistry.refList_[c](b);goog.debug.entryPointRegistry.monitors_.push(a)};
-goog.debug.entryPointRegistry.unmonitorAllIfPossible=function(a){var b=goog.debug.entryPointRegistry.monitors_;goog.asserts.assert(a==b[b.length-1],"Only the most recent monitor can be unwrapped.");a=goog.bind(a.unwrap,a);for(var c=0;c<goog.debug.entryPointRegistry.refList_.length;c++)goog.debug.entryPointRegistry.refList_[c](a);b.length--};goog.dom.HtmlElement=function(){};goog.dom.TagName=function(a){this.tagName_=a};goog.dom.TagName.prototype.toString=function(){return this.tagName_};goog.dom.TagName.A=new goog.dom.TagName("A");goog.dom.TagName.ABBR=new goog.dom.TagName("ABBR");goog.dom.TagName.ACRONYM=new goog.dom.TagName("ACRONYM");goog.dom.TagName.ADDRESS=new goog.dom.TagName("ADDRESS");goog.dom.TagName.APPLET=new goog.dom.TagName("APPLET");goog.dom.TagName.AREA=new goog.dom.TagName("AREA");goog.dom.TagName.ARTICLE=new goog.dom.TagName("ARTICLE");
-goog.dom.TagName.ASIDE=new goog.dom.TagName("ASIDE");goog.dom.TagName.AUDIO=new goog.dom.TagName("AUDIO");goog.dom.TagName.B=new goog.dom.TagName("B");goog.dom.TagName.BASE=new goog.dom.TagName("BASE");goog.dom.TagName.BASEFONT=new goog.dom.TagName("BASEFONT");goog.dom.TagName.BDI=new goog.dom.TagName("BDI");goog.dom.TagName.BDO=new goog.dom.TagName("BDO");goog.dom.TagName.BIG=new goog.dom.TagName("BIG");goog.dom.TagName.BLOCKQUOTE=new goog.dom.TagName("BLOCKQUOTE");goog.dom.TagName.BODY=new goog.dom.TagName("BODY");
-goog.dom.TagName.BR=new goog.dom.TagName("BR");goog.dom.TagName.BUTTON=new goog.dom.TagName("BUTTON");goog.dom.TagName.CANVAS=new goog.dom.TagName("CANVAS");goog.dom.TagName.CAPTION=new goog.dom.TagName("CAPTION");goog.dom.TagName.CENTER=new goog.dom.TagName("CENTER");goog.dom.TagName.CITE=new goog.dom.TagName("CITE");goog.dom.TagName.CODE=new goog.dom.TagName("CODE");goog.dom.TagName.COL=new goog.dom.TagName("COL");goog.dom.TagName.COLGROUP=new goog.dom.TagName("COLGROUP");
-goog.dom.TagName.COMMAND=new goog.dom.TagName("COMMAND");goog.dom.TagName.DATA=new goog.dom.TagName("DATA");goog.dom.TagName.DATALIST=new goog.dom.TagName("DATALIST");goog.dom.TagName.DD=new goog.dom.TagName("DD");goog.dom.TagName.DEL=new goog.dom.TagName("DEL");goog.dom.TagName.DETAILS=new goog.dom.TagName("DETAILS");goog.dom.TagName.DFN=new goog.dom.TagName("DFN");goog.dom.TagName.DIALOG=new goog.dom.TagName("DIALOG");goog.dom.TagName.DIR=new goog.dom.TagName("DIR");goog.dom.TagName.DIV=new goog.dom.TagName("DIV");
-goog.dom.TagName.DL=new goog.dom.TagName("DL");goog.dom.TagName.DT=new goog.dom.TagName("DT");goog.dom.TagName.EM=new goog.dom.TagName("EM");goog.dom.TagName.EMBED=new goog.dom.TagName("EMBED");goog.dom.TagName.FIELDSET=new goog.dom.TagName("FIELDSET");goog.dom.TagName.FIGCAPTION=new goog.dom.TagName("FIGCAPTION");goog.dom.TagName.FIGURE=new goog.dom.TagName("FIGURE");goog.dom.TagName.FONT=new goog.dom.TagName("FONT");goog.dom.TagName.FOOTER=new goog.dom.TagName("FOOTER");goog.dom.TagName.FORM=new goog.dom.TagName("FORM");
-goog.dom.TagName.FRAME=new goog.dom.TagName("FRAME");goog.dom.TagName.FRAMESET=new goog.dom.TagName("FRAMESET");goog.dom.TagName.H1=new goog.dom.TagName("H1");goog.dom.TagName.H2=new goog.dom.TagName("H2");goog.dom.TagName.H3=new goog.dom.TagName("H3");goog.dom.TagName.H4=new goog.dom.TagName("H4");goog.dom.TagName.H5=new goog.dom.TagName("H5");goog.dom.TagName.H6=new goog.dom.TagName("H6");goog.dom.TagName.HEAD=new goog.dom.TagName("HEAD");goog.dom.TagName.HEADER=new goog.dom.TagName("HEADER");
-goog.dom.TagName.HGROUP=new goog.dom.TagName("HGROUP");goog.dom.TagName.HR=new goog.dom.TagName("HR");goog.dom.TagName.HTML=new goog.dom.TagName("HTML");goog.dom.TagName.I=new goog.dom.TagName("I");goog.dom.TagName.IFRAME=new goog.dom.TagName("IFRAME");goog.dom.TagName.IMG=new goog.dom.TagName("IMG");goog.dom.TagName.INPUT=new goog.dom.TagName("INPUT");goog.dom.TagName.INS=new goog.dom.TagName("INS");goog.dom.TagName.ISINDEX=new goog.dom.TagName("ISINDEX");goog.dom.TagName.KBD=new goog.dom.TagName("KBD");
-goog.dom.TagName.KEYGEN=new goog.dom.TagName("KEYGEN");goog.dom.TagName.LABEL=new goog.dom.TagName("LABEL");goog.dom.TagName.LEGEND=new goog.dom.TagName("LEGEND");goog.dom.TagName.LI=new goog.dom.TagName("LI");goog.dom.TagName.LINK=new goog.dom.TagName("LINK");goog.dom.TagName.MAIN=new goog.dom.TagName("MAIN");goog.dom.TagName.MAP=new goog.dom.TagName("MAP");goog.dom.TagName.MARK=new goog.dom.TagName("MARK");goog.dom.TagName.MATH=new goog.dom.TagName("MATH");goog.dom.TagName.MENU=new goog.dom.TagName("MENU");
-goog.dom.TagName.MENUITEM=new goog.dom.TagName("MENUITEM");goog.dom.TagName.META=new goog.dom.TagName("META");goog.dom.TagName.METER=new goog.dom.TagName("METER");goog.dom.TagName.NAV=new goog.dom.TagName("NAV");goog.dom.TagName.NOFRAMES=new goog.dom.TagName("NOFRAMES");goog.dom.TagName.NOSCRIPT=new goog.dom.TagName("NOSCRIPT");goog.dom.TagName.OBJECT=new goog.dom.TagName("OBJECT");goog.dom.TagName.OL=new goog.dom.TagName("OL");goog.dom.TagName.OPTGROUP=new goog.dom.TagName("OPTGROUP");
-goog.dom.TagName.OPTION=new goog.dom.TagName("OPTION");goog.dom.TagName.OUTPUT=new goog.dom.TagName("OUTPUT");goog.dom.TagName.P=new goog.dom.TagName("P");goog.dom.TagName.PARAM=new goog.dom.TagName("PARAM");goog.dom.TagName.PICTURE=new goog.dom.TagName("PICTURE");goog.dom.TagName.PRE=new goog.dom.TagName("PRE");goog.dom.TagName.PROGRESS=new goog.dom.TagName("PROGRESS");goog.dom.TagName.Q=new goog.dom.TagName("Q");goog.dom.TagName.RP=new goog.dom.TagName("RP");goog.dom.TagName.RT=new goog.dom.TagName("RT");
-goog.dom.TagName.RTC=new goog.dom.TagName("RTC");goog.dom.TagName.RUBY=new goog.dom.TagName("RUBY");goog.dom.TagName.S=new goog.dom.TagName("S");goog.dom.TagName.SAMP=new goog.dom.TagName("SAMP");goog.dom.TagName.SCRIPT=new goog.dom.TagName("SCRIPT");goog.dom.TagName.SECTION=new goog.dom.TagName("SECTION");goog.dom.TagName.SELECT=new goog.dom.TagName("SELECT");goog.dom.TagName.SMALL=new goog.dom.TagName("SMALL");goog.dom.TagName.SOURCE=new goog.dom.TagName("SOURCE");goog.dom.TagName.SPAN=new goog.dom.TagName("SPAN");
-goog.dom.TagName.STRIKE=new goog.dom.TagName("STRIKE");goog.dom.TagName.STRONG=new goog.dom.TagName("STRONG");goog.dom.TagName.STYLE=new goog.dom.TagName("STYLE");goog.dom.TagName.SUB=new goog.dom.TagName("SUB");goog.dom.TagName.SUMMARY=new goog.dom.TagName("SUMMARY");goog.dom.TagName.SUP=new goog.dom.TagName("SUP");goog.dom.TagName.SVG=new goog.dom.TagName("SVG");goog.dom.TagName.TABLE=new goog.dom.TagName("TABLE");goog.dom.TagName.TBODY=new goog.dom.TagName("TBODY");goog.dom.TagName.TD=new goog.dom.TagName("TD");
-goog.dom.TagName.TEMPLATE=new goog.dom.TagName("TEMPLATE");goog.dom.TagName.TEXTAREA=new goog.dom.TagName("TEXTAREA");goog.dom.TagName.TFOOT=new goog.dom.TagName("TFOOT");goog.dom.TagName.TH=new goog.dom.TagName("TH");goog.dom.TagName.THEAD=new goog.dom.TagName("THEAD");goog.dom.TagName.TIME=new goog.dom.TagName("TIME");goog.dom.TagName.TITLE=new goog.dom.TagName("TITLE");goog.dom.TagName.TR=new goog.dom.TagName("TR");goog.dom.TagName.TRACK=new goog.dom.TagName("TRACK");goog.dom.TagName.TT=new goog.dom.TagName("TT");
-goog.dom.TagName.U=new goog.dom.TagName("U");goog.dom.TagName.UL=new goog.dom.TagName("UL");goog.dom.TagName.VAR=new goog.dom.TagName("VAR");goog.dom.TagName.VIDEO=new goog.dom.TagName("VIDEO");goog.dom.TagName.WBR=new goog.dom.TagName("WBR");goog.functions={};goog.functions.constant=function(a){return function(){return a}};goog.functions.FALSE=goog.functions.constant(!1);goog.functions.TRUE=goog.functions.constant(!0);goog.functions.NULL=goog.functions.constant(null);goog.functions.identity=function(a,b){return a};goog.functions.error=function(a){return function(){throw Error(a);}};goog.functions.fail=function(a){return function(){throw a;}};
-goog.functions.lock=function(a,b){b=b||0;return function(){return a.apply(this,Array.prototype.slice.call(arguments,0,b))}};goog.functions.nth=function(a){return function(){return arguments[a]}};goog.functions.partialRight=function(a,b){var c=Array.prototype.slice.call(arguments,1);return function(){var b=Array.prototype.slice.call(arguments);b.push.apply(b,c);return a.apply(this,b)}};goog.functions.withReturnValue=function(a,b){return goog.functions.sequence(a,goog.functions.constant(b))};
-goog.functions.equalTo=function(a,b){return function(c){return b?a==c:a===c}};goog.functions.compose=function(a,b){var c=arguments,d=c.length;return function(){var a;d&&(a=c[d-1].apply(this,arguments));for(var b=d-2;0<=b;b--)a=c[b].call(this,a);return a}};goog.functions.sequence=function(a){var b=arguments,c=b.length;return function(){for(var a,e=0;e<c;e++)a=b[e].apply(this,arguments);return a}};
-goog.functions.and=function(a){var b=arguments,c=b.length;return function(){for(var a=0;a<c;a++)if(!b[a].apply(this,arguments))return!1;return!0}};goog.functions.or=function(a){var b=arguments,c=b.length;return function(){for(var a=0;a<c;a++)if(b[a].apply(this,arguments))return!0;return!1}};goog.functions.not=function(a){return function(){return!a.apply(this,arguments)}};
-goog.functions.create=function(a,b){var c=function(){};c.prototype=a.prototype;c=new c;a.apply(c,Array.prototype.slice.call(arguments,1));return c};goog.functions.CACHE_RETURN_VALUE=!0;goog.functions.cacheReturnValue=function(a){var b=!1,c;return function(){if(!goog.functions.CACHE_RETURN_VALUE)return a();b||(c=a(),b=!0);return c}};goog.functions.once=function(a){var b=a;return function(){if(b){var a=b;b=null;a()}}};
-goog.functions.debounce=function(a,b,c){var d=0;return function(e){goog.global.clearTimeout(d);var f=arguments;d=goog.global.setTimeout(function(){a.apply(c,f)},b)}};goog.functions.throttle=function(a,b,c){var d=0,e=!1,f=[],g=function(){d=0;e&&(e=!1,h())},h=function(){d=goog.global.setTimeout(g,b);a.apply(c,f)};return function(a){f=arguments;d?e=!0:h()}};goog.functions.rateLimit=function(a,b,c){var d=0,e=function(){d=0};return function(f){d||(d=goog.global.setTimeout(e,b),a.apply(c,arguments))}};goog.labs={};goog.labs.userAgent={};goog.labs.userAgent.util={};goog.labs.userAgent.util.getNativeUserAgentString_=function(){var a=goog.labs.userAgent.util.getNavigator_();return a&&(a=a.userAgent)?a:""};goog.labs.userAgent.util.getNavigator_=function(){return goog.global.navigator};goog.labs.userAgent.util.userAgent_=goog.labs.userAgent.util.getNativeUserAgentString_();goog.labs.userAgent.util.setUserAgent=function(a){goog.labs.userAgent.util.userAgent_=a||goog.labs.userAgent.util.getNativeUserAgentString_()};
+goog.string.editDistance=function(a,b){var c=[],d=[];if(a==b)return 0;if(!a.length||!b.length)return Math.max(a.length,b.length);for(var e=0;e<b.length+1;e++)c[e]=e;for(e=0;e<a.length;e++){d[0]=e+1;for(var f=0;f<b.length;f++)d[f+1]=Math.min(d[f]+1,c[f+1]+1,c[f]+Number(a[e]!=b[f]));for(f=0;f<c.length;f++)c[f]=d[f]}return d[b.length]};goog.labs={};goog.labs.userAgent={};goog.labs.userAgent.util={};goog.labs.userAgent.util.getNativeUserAgentString_=function(){var a=goog.labs.userAgent.util.getNavigator_();return a&&(a=a.userAgent)?a:""};goog.labs.userAgent.util.getNavigator_=function(){return goog.global.navigator};goog.labs.userAgent.util.userAgent_=goog.labs.userAgent.util.getNativeUserAgentString_();goog.labs.userAgent.util.setUserAgent=function(a){goog.labs.userAgent.util.userAgent_=a||goog.labs.userAgent.util.getNativeUserAgentString_()};
 goog.labs.userAgent.util.getUserAgent=function(){return goog.labs.userAgent.util.userAgent_};goog.labs.userAgent.util.matchUserAgent=function(a){var b=goog.labs.userAgent.util.getUserAgent();return goog.string.contains(b,a)};goog.labs.userAgent.util.matchUserAgentIgnoreCase=function(a){var b=goog.labs.userAgent.util.getUserAgent();return goog.string.caseInsensitiveContains(b,a)};
 goog.labs.userAgent.util.extractVersionTuples=function(a){for(var b=RegExp("(\\w[\\w ]+)/([^\\s]+)\\s*(?:\\((.*?)\\))?","g"),c=[],d;d=b.exec(a);)c.push([d[1],d[2],d[3]||void 0]);return c};goog.object={};goog.object.is=function(a,b){return a===b?0!==a||1/a===1/b:a!==a&&b!==b};goog.object.forEach=function(a,b,c){for(var d in a)b.call(c,a[d],d,a)};goog.object.filter=function(a,b,c){var d={},e;for(e in a)b.call(c,a[e],e,a)&&(d[e]=a[e]);return d};goog.object.map=function(a,b,c){var d={},e;for(e in a)d[e]=b.call(c,a[e],e,a);return d};goog.object.some=function(a,b,c){for(var d in a)if(b.call(c,a[d],d,a))return!0;return!1};
 goog.object.every=function(a,b,c){for(var d in a)if(!b.call(c,a[d],d,a))return!1;return!0};goog.object.getCount=function(a){var b=0,c;for(c in a)b++;return b};goog.object.getAnyKey=function(a){for(var b in a)return b};goog.object.getAnyValue=function(a){for(var b in a)return a[b]};goog.object.contains=function(a,b){return goog.object.containsValue(a,b)};goog.object.getValues=function(a){var b=[],c=0,d;for(d in a)b[c++]=a[d];return b};
@@ -180,11 +142,47 @@ goog.labs.userAgent.browser.isChrome()?a(["Chrome","CriOS"]):(b=b[2])&&b[1]||""}
 goog.labs.userAgent.browser.getIEVersion_=function(a){var b=/rv: *([\d\.]*)/.exec(a);if(b&&b[1])return b[1];b="";var c=/MSIE +([\d\.]+)/.exec(a);if(c&&c[1])if(a=/Trident\/(\d.\d)/.exec(a),"7.0"==c[1])if(a&&a[1])switch(a[1]){case "4.0":b="8.0";break;case "5.0":b="9.0";break;case "6.0":b="10.0";break;case "7.0":b="11.0"}else b="7.0";else b=c[1];return b};goog.labs.userAgent.engine={};goog.labs.userAgent.engine.isPresto=function(){return goog.labs.userAgent.util.matchUserAgent("Presto")};goog.labs.userAgent.engine.isTrident=function(){return goog.labs.userAgent.util.matchUserAgent("Trident")||goog.labs.userAgent.util.matchUserAgent("MSIE")};goog.labs.userAgent.engine.isEdge=function(){return goog.labs.userAgent.util.matchUserAgent("Edge")};
 goog.labs.userAgent.engine.isWebKit=function(){return goog.labs.userAgent.util.matchUserAgentIgnoreCase("WebKit")&&!goog.labs.userAgent.engine.isEdge()};goog.labs.userAgent.engine.isGecko=function(){return goog.labs.userAgent.util.matchUserAgent("Gecko")&&!goog.labs.userAgent.engine.isWebKit()&&!goog.labs.userAgent.engine.isTrident()&&!goog.labs.userAgent.engine.isEdge()};
 goog.labs.userAgent.engine.getVersion=function(){var a=goog.labs.userAgent.util.getUserAgent();if(a){a=goog.labs.userAgent.util.extractVersionTuples(a);var b=goog.labs.userAgent.engine.getEngineTuple_(a);if(b)return"Gecko"==b[0]?goog.labs.userAgent.engine.getVersionForKey_(a,"Firefox"):b[1];a=a[0];var c;if(a&&(c=a[2])&&(c=/Trident\/([^\s;]+)/.exec(c)))return c[1]}return""};
-goog.labs.userAgent.engine.getEngineTuple_=function(a){if(!goog.labs.userAgent.engine.isEdge())return a[1];for(var b=0;b<a.length;b++){var c=a[b];if("Edge"==c[0])return c}};goog.labs.userAgent.engine.isVersionOrHigher=function(a){return 0<=goog.string.compareVersions(goog.labs.userAgent.engine.getVersion(),a)};goog.labs.userAgent.engine.getVersionForKey_=function(a,b){var c=goog.array.find(a,function(a){return b==a[0]});return c&&c[1]||""};goog.async.throwException=function(a){goog.global.setTimeout(function(){throw a;},0)};goog.async.nextTick=function(a,b,c){var d=a;b&&(d=goog.bind(a,b));d=goog.async.nextTick.wrapCallback_(d);goog.isFunction(goog.global.setImmediate)&&(c||goog.async.nextTick.useSetImmediate_())?goog.global.setImmediate(d):(goog.async.nextTick.setImmediate_||(goog.async.nextTick.setImmediate_=goog.async.nextTick.getSetImmediateEmulator_()),goog.async.nextTick.setImmediate_(d))};
+goog.labs.userAgent.engine.getEngineTuple_=function(a){if(!goog.labs.userAgent.engine.isEdge())return a[1];for(var b=0;b<a.length;b++){var c=a[b];if("Edge"==c[0])return c}};goog.labs.userAgent.engine.isVersionOrHigher=function(a){return 0<=goog.string.compareVersions(goog.labs.userAgent.engine.getVersion(),a)};goog.labs.userAgent.engine.getVersionForKey_=function(a,b){var c=goog.array.find(a,function(a){return b==a[0]});return c&&c[1]||""};goog.labs.userAgent.platform={};goog.labs.userAgent.platform.isAndroid=function(){return goog.labs.userAgent.util.matchUserAgent("Android")};goog.labs.userAgent.platform.isIpod=function(){return goog.labs.userAgent.util.matchUserAgent("iPod")};goog.labs.userAgent.platform.isIphone=function(){return goog.labs.userAgent.util.matchUserAgent("iPhone")&&!goog.labs.userAgent.util.matchUserAgent("iPod")&&!goog.labs.userAgent.util.matchUserAgent("iPad")};goog.labs.userAgent.platform.isIpad=function(){return goog.labs.userAgent.util.matchUserAgent("iPad")};
+goog.labs.userAgent.platform.isIos=function(){return goog.labs.userAgent.platform.isIphone()||goog.labs.userAgent.platform.isIpad()||goog.labs.userAgent.platform.isIpod()};goog.labs.userAgent.platform.isMacintosh=function(){return goog.labs.userAgent.util.matchUserAgent("Macintosh")};goog.labs.userAgent.platform.isLinux=function(){return goog.labs.userAgent.util.matchUserAgent("Linux")};goog.labs.userAgent.platform.isWindows=function(){return goog.labs.userAgent.util.matchUserAgent("Windows")};
+goog.labs.userAgent.platform.isChromeOS=function(){return goog.labs.userAgent.util.matchUserAgent("CrOS")};goog.labs.userAgent.platform.isChromecast=function(){return goog.labs.userAgent.util.matchUserAgent("CrKey")};
+goog.labs.userAgent.platform.getVersion=function(){var a=goog.labs.userAgent.util.getUserAgent(),b="";goog.labs.userAgent.platform.isWindows()?(b=/Windows (?:NT|Phone) ([0-9.]+)/,b=(a=b.exec(a))?a[1]:"0.0"):goog.labs.userAgent.platform.isIos()?(b=/(?:iPhone|iPod|iPad|CPU)\s+OS\s+(\S+)/,b=(a=b.exec(a))&&a[1].replace(/_/g,".")):goog.labs.userAgent.platform.isMacintosh()?(b=/Mac OS X ([0-9_.]+)/,b=(a=b.exec(a))?a[1].replace(/_/g,"."):"10"):goog.labs.userAgent.platform.isAndroid()?(b=/Android\s+([^\);]+)(\)|;)/,
+b=(a=b.exec(a))&&a[1]):goog.labs.userAgent.platform.isChromeOS()&&(b=/(?:CrOS\s+(?:i686|x86_64)\s+([0-9.]+))/,b=(a=b.exec(a))&&a[1]);return b||""};goog.labs.userAgent.platform.isVersionOrHigher=function(a){return 0<=goog.string.compareVersions(goog.labs.userAgent.platform.getVersion(),a)};goog.reflect={};goog.reflect.object=function(a,b){return b};goog.reflect.objectProperty=function(a,b){return a};goog.reflect.sinkValue=function(a){goog.reflect.sinkValue[" "](a);return a};goog.reflect.sinkValue[" "]=goog.nullFunction;goog.reflect.canAccessProperty=function(a,b){try{return goog.reflect.sinkValue(a[b]),!0}catch(c){}return!1};goog.reflect.cache=function(a,b,c,d){d=d?d(b):b;return Object.prototype.hasOwnProperty.call(a,d)?a[d]:a[d]=c(b)};goog.userAgent={};goog.userAgent.ASSUME_IE=!1;goog.userAgent.ASSUME_EDGE=!1;goog.userAgent.ASSUME_GECKO=!1;goog.userAgent.ASSUME_WEBKIT=!1;goog.userAgent.ASSUME_MOBILE_WEBKIT=!1;goog.userAgent.ASSUME_OPERA=!1;goog.userAgent.ASSUME_ANY_VERSION=!1;goog.userAgent.BROWSER_KNOWN_=goog.userAgent.ASSUME_IE||goog.userAgent.ASSUME_EDGE||goog.userAgent.ASSUME_GECKO||goog.userAgent.ASSUME_MOBILE_WEBKIT||goog.userAgent.ASSUME_WEBKIT||goog.userAgent.ASSUME_OPERA;goog.userAgent.getUserAgentString=function(){return goog.labs.userAgent.util.getUserAgent()};
+goog.userAgent.getNavigator=function(){return goog.global.navigator||null};goog.userAgent.OPERA=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_OPERA:goog.labs.userAgent.browser.isOpera();goog.userAgent.IE=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_IE:goog.labs.userAgent.browser.isIE();goog.userAgent.EDGE=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_EDGE:goog.labs.userAgent.engine.isEdge();goog.userAgent.EDGE_OR_IE=goog.userAgent.EDGE||goog.userAgent.IE;
+goog.userAgent.GECKO=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_GECKO:goog.labs.userAgent.engine.isGecko();goog.userAgent.WEBKIT=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_WEBKIT||goog.userAgent.ASSUME_MOBILE_WEBKIT:goog.labs.userAgent.engine.isWebKit();goog.userAgent.isMobile_=function(){return goog.userAgent.WEBKIT&&goog.labs.userAgent.util.matchUserAgent("Mobile")};goog.userAgent.MOBILE=goog.userAgent.ASSUME_MOBILE_WEBKIT||goog.userAgent.isMobile_();goog.userAgent.SAFARI=goog.userAgent.WEBKIT;
+goog.userAgent.determinePlatform_=function(){var a=goog.userAgent.getNavigator();return a&&a.platform||""};goog.userAgent.PLATFORM=goog.userAgent.determinePlatform_();goog.userAgent.ASSUME_MAC=!1;goog.userAgent.ASSUME_WINDOWS=!1;goog.userAgent.ASSUME_LINUX=!1;goog.userAgent.ASSUME_X11=!1;goog.userAgent.ASSUME_ANDROID=!1;goog.userAgent.ASSUME_IPHONE=!1;goog.userAgent.ASSUME_IPAD=!1;goog.userAgent.ASSUME_IPOD=!1;
+goog.userAgent.PLATFORM_KNOWN_=goog.userAgent.ASSUME_MAC||goog.userAgent.ASSUME_WINDOWS||goog.userAgent.ASSUME_LINUX||goog.userAgent.ASSUME_X11||goog.userAgent.ASSUME_ANDROID||goog.userAgent.ASSUME_IPHONE||goog.userAgent.ASSUME_IPAD||goog.userAgent.ASSUME_IPOD;goog.userAgent.MAC=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_MAC:goog.labs.userAgent.platform.isMacintosh();goog.userAgent.WINDOWS=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_WINDOWS:goog.labs.userAgent.platform.isWindows();
+goog.userAgent.isLegacyLinux_=function(){return goog.labs.userAgent.platform.isLinux()||goog.labs.userAgent.platform.isChromeOS()};goog.userAgent.LINUX=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_LINUX:goog.userAgent.isLegacyLinux_();goog.userAgent.isX11_=function(){var a=goog.userAgent.getNavigator();return!!a&&goog.string.contains(a.appVersion||"","X11")};goog.userAgent.X11=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_X11:goog.userAgent.isX11_();
+goog.userAgent.ANDROID=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_ANDROID:goog.labs.userAgent.platform.isAndroid();goog.userAgent.IPHONE=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_IPHONE:goog.labs.userAgent.platform.isIphone();goog.userAgent.IPAD=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_IPAD:goog.labs.userAgent.platform.isIpad();goog.userAgent.IPOD=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_IPOD:goog.labs.userAgent.platform.isIpod();
+goog.userAgent.IOS=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_IPHONE||goog.userAgent.ASSUME_IPAD||goog.userAgent.ASSUME_IPOD:goog.labs.userAgent.platform.isIos();goog.userAgent.determineVersion_=function(){var a="",b=goog.userAgent.getVersionRegexResult_();b&&(a=b?b[1]:"");return goog.userAgent.IE&&(b=goog.userAgent.getDocumentMode_(),null!=b&&b>parseFloat(a))?String(b):a};
+goog.userAgent.getVersionRegexResult_=function(){var a=goog.userAgent.getUserAgentString();if(goog.userAgent.GECKO)return/rv:([^\);]+)(\)|;)/.exec(a);if(goog.userAgent.EDGE)return/Edge\/([\d\.]+)/.exec(a);if(goog.userAgent.IE)return/\b(?:MSIE|rv)[: ]([^\);]+)(\)|;)/.exec(a);if(goog.userAgent.WEBKIT)return/WebKit\/(\S+)/.exec(a);if(goog.userAgent.OPERA)return/(?:Version)[ \/]?(\S+)/.exec(a)};goog.userAgent.getDocumentMode_=function(){var a=goog.global.document;return a?a.documentMode:void 0};
+goog.userAgent.VERSION=goog.userAgent.determineVersion_();goog.userAgent.compare=function(a,b){return goog.string.compareVersions(a,b)};goog.userAgent.isVersionOrHigherCache_={};goog.userAgent.isVersionOrHigher=function(a){return goog.userAgent.ASSUME_ANY_VERSION||goog.reflect.cache(goog.userAgent.isVersionOrHigherCache_,a,function(){return 0<=goog.string.compareVersions(goog.userAgent.VERSION,a)})};goog.userAgent.isVersion=goog.userAgent.isVersionOrHigher;
+goog.userAgent.isDocumentModeOrHigher=function(a){return Number(goog.userAgent.DOCUMENT_MODE)>=a};goog.userAgent.isDocumentMode=goog.userAgent.isDocumentModeOrHigher;goog.userAgent.DOCUMENT_MODE=function(){var a=goog.global.document,b=goog.userAgent.getDocumentMode_();if(a&&goog.userAgent.IE)return b||("CSS1Compat"==a.compatMode?parseInt(goog.userAgent.VERSION,10):5)}();goog.Thenable=function(){};goog.Thenable.prototype.then=function(a,b,c){};goog.Thenable.IMPLEMENTED_BY_PROP="$goog_Thenable";goog.Thenable.addImplementation=function(a){a.prototype.then=a.prototype.then;COMPILED?a.prototype[goog.Thenable.IMPLEMENTED_BY_PROP]=!0:a.prototype.$goog_Thenable=!0};goog.Thenable.isImplementedBy=function(a){if(!a)return!1;try{return COMPILED?!!a[goog.Thenable.IMPLEMENTED_BY_PROP]:!!a.$goog_Thenable}catch(b){return!1}};goog.async={};goog.async.FreeList=function(a,b,c){this.limit_=c;this.create_=a;this.reset_=b;this.occupants_=0;this.head_=null};goog.async.FreeList.prototype.get=function(){if(0<this.occupants_){this.occupants_--;var a=this.head_;this.head_=a.next;a.next=null}else a=this.create_();return a};goog.async.FreeList.prototype.put=function(a){this.reset_(a);this.occupants_<this.limit_&&(this.occupants_++,a.next=this.head_,this.head_=a)};goog.async.FreeList.prototype.occupants=function(){return this.occupants_};goog.async.WorkQueue=function(){this.workTail_=this.workHead_=null};goog.async.WorkQueue.DEFAULT_MAX_UNUSED=100;goog.async.WorkQueue.freelist_=new goog.async.FreeList(function(){return new goog.async.WorkItem},function(a){a.reset()},goog.async.WorkQueue.DEFAULT_MAX_UNUSED);goog.async.WorkQueue.prototype.add=function(a,b){var c=this.getUnusedItem_();c.set(a,b);this.workTail_?this.workTail_.next=c:(goog.asserts.assert(!this.workHead_),this.workHead_=c);this.workTail_=c};
+goog.async.WorkQueue.prototype.remove=function(){var a=null;this.workHead_&&(a=this.workHead_,this.workHead_=this.workHead_.next,this.workHead_||(this.workTail_=null),a.next=null);return a};goog.async.WorkQueue.prototype.returnUnused=function(a){goog.async.WorkQueue.freelist_.put(a)};goog.async.WorkQueue.prototype.getUnusedItem_=function(){return goog.async.WorkQueue.freelist_.get()};goog.async.WorkItem=function(){this.next=this.scope=this.fn=null};
+goog.async.WorkItem.prototype.set=function(a,b){this.fn=a;this.scope=b;this.next=null};goog.async.WorkItem.prototype.reset=function(){this.next=this.scope=this.fn=null};goog.debug.entryPointRegistry={};goog.debug.EntryPointMonitor=function(){};goog.debug.entryPointRegistry.refList_=[];goog.debug.entryPointRegistry.monitors_=[];goog.debug.entryPointRegistry.monitorsMayExist_=!1;goog.debug.entryPointRegistry.register=function(a){goog.debug.entryPointRegistry.refList_[goog.debug.entryPointRegistry.refList_.length]=a;if(goog.debug.entryPointRegistry.monitorsMayExist_)for(var b=goog.debug.entryPointRegistry.monitors_,c=0;c<b.length;c++)a(goog.bind(b[c].wrap,b[c]))};
+goog.debug.entryPointRegistry.monitorAll=function(a){goog.debug.entryPointRegistry.monitorsMayExist_=!0;for(var b=goog.bind(a.wrap,a),c=0;c<goog.debug.entryPointRegistry.refList_.length;c++)goog.debug.entryPointRegistry.refList_[c](b);goog.debug.entryPointRegistry.monitors_.push(a)};
+goog.debug.entryPointRegistry.unmonitorAllIfPossible=function(a){var b=goog.debug.entryPointRegistry.monitors_;goog.asserts.assert(a==b[b.length-1],"Only the most recent monitor can be unwrapped.");a=goog.bind(a.unwrap,a);for(var c=0;c<goog.debug.entryPointRegistry.refList_.length;c++)goog.debug.entryPointRegistry.refList_[c](a);b.length--};goog.dom.HtmlElement=function(){};goog.dom.TagName=function(a){this.tagName_=a};goog.dom.TagName.prototype.toString=function(){return this.tagName_};goog.dom.TagName.A=new goog.dom.TagName("A");goog.dom.TagName.ABBR=new goog.dom.TagName("ABBR");goog.dom.TagName.ACRONYM=new goog.dom.TagName("ACRONYM");goog.dom.TagName.ADDRESS=new goog.dom.TagName("ADDRESS");goog.dom.TagName.APPLET=new goog.dom.TagName("APPLET");goog.dom.TagName.AREA=new goog.dom.TagName("AREA");goog.dom.TagName.ARTICLE=new goog.dom.TagName("ARTICLE");
+goog.dom.TagName.ASIDE=new goog.dom.TagName("ASIDE");goog.dom.TagName.AUDIO=new goog.dom.TagName("AUDIO");goog.dom.TagName.B=new goog.dom.TagName("B");goog.dom.TagName.BASE=new goog.dom.TagName("BASE");goog.dom.TagName.BASEFONT=new goog.dom.TagName("BASEFONT");goog.dom.TagName.BDI=new goog.dom.TagName("BDI");goog.dom.TagName.BDO=new goog.dom.TagName("BDO");goog.dom.TagName.BIG=new goog.dom.TagName("BIG");goog.dom.TagName.BLOCKQUOTE=new goog.dom.TagName("BLOCKQUOTE");goog.dom.TagName.BODY=new goog.dom.TagName("BODY");
+goog.dom.TagName.BR=new goog.dom.TagName("BR");goog.dom.TagName.BUTTON=new goog.dom.TagName("BUTTON");goog.dom.TagName.CANVAS=new goog.dom.TagName("CANVAS");goog.dom.TagName.CAPTION=new goog.dom.TagName("CAPTION");goog.dom.TagName.CENTER=new goog.dom.TagName("CENTER");goog.dom.TagName.CITE=new goog.dom.TagName("CITE");goog.dom.TagName.CODE=new goog.dom.TagName("CODE");goog.dom.TagName.COL=new goog.dom.TagName("COL");goog.dom.TagName.COLGROUP=new goog.dom.TagName("COLGROUP");
+goog.dom.TagName.COMMAND=new goog.dom.TagName("COMMAND");goog.dom.TagName.DATA=new goog.dom.TagName("DATA");goog.dom.TagName.DATALIST=new goog.dom.TagName("DATALIST");goog.dom.TagName.DD=new goog.dom.TagName("DD");goog.dom.TagName.DEL=new goog.dom.TagName("DEL");goog.dom.TagName.DETAILS=new goog.dom.TagName("DETAILS");goog.dom.TagName.DFN=new goog.dom.TagName("DFN");goog.dom.TagName.DIALOG=new goog.dom.TagName("DIALOG");goog.dom.TagName.DIR=new goog.dom.TagName("DIR");goog.dom.TagName.DIV=new goog.dom.TagName("DIV");
+goog.dom.TagName.DL=new goog.dom.TagName("DL");goog.dom.TagName.DT=new goog.dom.TagName("DT");goog.dom.TagName.EM=new goog.dom.TagName("EM");goog.dom.TagName.EMBED=new goog.dom.TagName("EMBED");goog.dom.TagName.FIELDSET=new goog.dom.TagName("FIELDSET");goog.dom.TagName.FIGCAPTION=new goog.dom.TagName("FIGCAPTION");goog.dom.TagName.FIGURE=new goog.dom.TagName("FIGURE");goog.dom.TagName.FONT=new goog.dom.TagName("FONT");goog.dom.TagName.FOOTER=new goog.dom.TagName("FOOTER");goog.dom.TagName.FORM=new goog.dom.TagName("FORM");
+goog.dom.TagName.FRAME=new goog.dom.TagName("FRAME");goog.dom.TagName.FRAMESET=new goog.dom.TagName("FRAMESET");goog.dom.TagName.H1=new goog.dom.TagName("H1");goog.dom.TagName.H2=new goog.dom.TagName("H2");goog.dom.TagName.H3=new goog.dom.TagName("H3");goog.dom.TagName.H4=new goog.dom.TagName("H4");goog.dom.TagName.H5=new goog.dom.TagName("H5");goog.dom.TagName.H6=new goog.dom.TagName("H6");goog.dom.TagName.HEAD=new goog.dom.TagName("HEAD");goog.dom.TagName.HEADER=new goog.dom.TagName("HEADER");
+goog.dom.TagName.HGROUP=new goog.dom.TagName("HGROUP");goog.dom.TagName.HR=new goog.dom.TagName("HR");goog.dom.TagName.HTML=new goog.dom.TagName("HTML");goog.dom.TagName.I=new goog.dom.TagName("I");goog.dom.TagName.IFRAME=new goog.dom.TagName("IFRAME");goog.dom.TagName.IMG=new goog.dom.TagName("IMG");goog.dom.TagName.INPUT=new goog.dom.TagName("INPUT");goog.dom.TagName.INS=new goog.dom.TagName("INS");goog.dom.TagName.ISINDEX=new goog.dom.TagName("ISINDEX");goog.dom.TagName.KBD=new goog.dom.TagName("KBD");
+goog.dom.TagName.KEYGEN=new goog.dom.TagName("KEYGEN");goog.dom.TagName.LABEL=new goog.dom.TagName("LABEL");goog.dom.TagName.LEGEND=new goog.dom.TagName("LEGEND");goog.dom.TagName.LI=new goog.dom.TagName("LI");goog.dom.TagName.LINK=new goog.dom.TagName("LINK");goog.dom.TagName.MAIN=new goog.dom.TagName("MAIN");goog.dom.TagName.MAP=new goog.dom.TagName("MAP");goog.dom.TagName.MARK=new goog.dom.TagName("MARK");goog.dom.TagName.MATH=new goog.dom.TagName("MATH");goog.dom.TagName.MENU=new goog.dom.TagName("MENU");
+goog.dom.TagName.MENUITEM=new goog.dom.TagName("MENUITEM");goog.dom.TagName.META=new goog.dom.TagName("META");goog.dom.TagName.METER=new goog.dom.TagName("METER");goog.dom.TagName.NAV=new goog.dom.TagName("NAV");goog.dom.TagName.NOFRAMES=new goog.dom.TagName("NOFRAMES");goog.dom.TagName.NOSCRIPT=new goog.dom.TagName("NOSCRIPT");goog.dom.TagName.OBJECT=new goog.dom.TagName("OBJECT");goog.dom.TagName.OL=new goog.dom.TagName("OL");goog.dom.TagName.OPTGROUP=new goog.dom.TagName("OPTGROUP");
+goog.dom.TagName.OPTION=new goog.dom.TagName("OPTION");goog.dom.TagName.OUTPUT=new goog.dom.TagName("OUTPUT");goog.dom.TagName.P=new goog.dom.TagName("P");goog.dom.TagName.PARAM=new goog.dom.TagName("PARAM");goog.dom.TagName.PICTURE=new goog.dom.TagName("PICTURE");goog.dom.TagName.PRE=new goog.dom.TagName("PRE");goog.dom.TagName.PROGRESS=new goog.dom.TagName("PROGRESS");goog.dom.TagName.Q=new goog.dom.TagName("Q");goog.dom.TagName.RP=new goog.dom.TagName("RP");goog.dom.TagName.RT=new goog.dom.TagName("RT");
+goog.dom.TagName.RTC=new goog.dom.TagName("RTC");goog.dom.TagName.RUBY=new goog.dom.TagName("RUBY");goog.dom.TagName.S=new goog.dom.TagName("S");goog.dom.TagName.SAMP=new goog.dom.TagName("SAMP");goog.dom.TagName.SCRIPT=new goog.dom.TagName("SCRIPT");goog.dom.TagName.SECTION=new goog.dom.TagName("SECTION");goog.dom.TagName.SELECT=new goog.dom.TagName("SELECT");goog.dom.TagName.SMALL=new goog.dom.TagName("SMALL");goog.dom.TagName.SOURCE=new goog.dom.TagName("SOURCE");goog.dom.TagName.SPAN=new goog.dom.TagName("SPAN");
+goog.dom.TagName.STRIKE=new goog.dom.TagName("STRIKE");goog.dom.TagName.STRONG=new goog.dom.TagName("STRONG");goog.dom.TagName.STYLE=new goog.dom.TagName("STYLE");goog.dom.TagName.SUB=new goog.dom.TagName("SUB");goog.dom.TagName.SUMMARY=new goog.dom.TagName("SUMMARY");goog.dom.TagName.SUP=new goog.dom.TagName("SUP");goog.dom.TagName.SVG=new goog.dom.TagName("SVG");goog.dom.TagName.TABLE=new goog.dom.TagName("TABLE");goog.dom.TagName.TBODY=new goog.dom.TagName("TBODY");goog.dom.TagName.TD=new goog.dom.TagName("TD");
+goog.dom.TagName.TEMPLATE=new goog.dom.TagName("TEMPLATE");goog.dom.TagName.TEXTAREA=new goog.dom.TagName("TEXTAREA");goog.dom.TagName.TFOOT=new goog.dom.TagName("TFOOT");goog.dom.TagName.TH=new goog.dom.TagName("TH");goog.dom.TagName.THEAD=new goog.dom.TagName("THEAD");goog.dom.TagName.TIME=new goog.dom.TagName("TIME");goog.dom.TagName.TITLE=new goog.dom.TagName("TITLE");goog.dom.TagName.TR=new goog.dom.TagName("TR");goog.dom.TagName.TRACK=new goog.dom.TagName("TRACK");goog.dom.TagName.TT=new goog.dom.TagName("TT");
+goog.dom.TagName.U=new goog.dom.TagName("U");goog.dom.TagName.UL=new goog.dom.TagName("UL");goog.dom.TagName.VAR=new goog.dom.TagName("VAR");goog.dom.TagName.VIDEO=new goog.dom.TagName("VIDEO");goog.dom.TagName.WBR=new goog.dom.TagName("WBR");goog.functions={};goog.functions.constant=function(a){return function(){return a}};goog.functions.FALSE=goog.functions.constant(!1);goog.functions.TRUE=goog.functions.constant(!0);goog.functions.NULL=goog.functions.constant(null);goog.functions.identity=function(a,b){return a};goog.functions.error=function(a){return function(){throw Error(a);}};goog.functions.fail=function(a){return function(){throw a;}};
+goog.functions.lock=function(a,b){b=b||0;return function(){return a.apply(this,Array.prototype.slice.call(arguments,0,b))}};goog.functions.nth=function(a){return function(){return arguments[a]}};goog.functions.partialRight=function(a,b){var c=Array.prototype.slice.call(arguments,1);return function(){var b=Array.prototype.slice.call(arguments);b.push.apply(b,c);return a.apply(this,b)}};goog.functions.withReturnValue=function(a,b){return goog.functions.sequence(a,goog.functions.constant(b))};
+goog.functions.equalTo=function(a,b){return function(c){return b?a==c:a===c}};goog.functions.compose=function(a,b){var c=arguments,d=c.length;return function(){var a;d&&(a=c[d-1].apply(this,arguments));for(var b=d-2;0<=b;b--)a=c[b].call(this,a);return a}};goog.functions.sequence=function(a){var b=arguments,c=b.length;return function(){for(var a,e=0;e<c;e++)a=b[e].apply(this,arguments);return a}};
+goog.functions.and=function(a){var b=arguments,c=b.length;return function(){for(var a=0;a<c;a++)if(!b[a].apply(this,arguments))return!1;return!0}};goog.functions.or=function(a){var b=arguments,c=b.length;return function(){for(var a=0;a<c;a++)if(b[a].apply(this,arguments))return!0;return!1}};goog.functions.not=function(a){return function(){return!a.apply(this,arguments)}};
+goog.functions.create=function(a,b){var c=function(){};c.prototype=a.prototype;c=new c;a.apply(c,Array.prototype.slice.call(arguments,1));return c};goog.functions.CACHE_RETURN_VALUE=!0;goog.functions.cacheReturnValue=function(a){var b=!1,c;return function(){if(!goog.functions.CACHE_RETURN_VALUE)return a();b||(c=a(),b=!0);return c}};goog.functions.once=function(a){var b=a;return function(){if(b){var a=b;b=null;a()}}};
+goog.functions.debounce=function(a,b,c){var d=0;return function(e){goog.global.clearTimeout(d);var f=arguments;d=goog.global.setTimeout(function(){a.apply(c,f)},b)}};goog.functions.throttle=function(a,b,c){var d=0,e=!1,f=[],g=function(){d=0;e&&(e=!1,h())},h=function(){d=goog.global.setTimeout(g,b);a.apply(c,f)};return function(a){f=arguments;d?e=!0:h()}};goog.functions.rateLimit=function(a,b,c){var d=0,e=function(){d=0};return function(f){d||(d=goog.global.setTimeout(e,b),a.apply(c,arguments))}};goog.async.throwException=function(a){goog.global.setTimeout(function(){throw a;},0)};goog.async.nextTick=function(a,b,c){var d=a;b&&(d=goog.bind(a,b));d=goog.async.nextTick.wrapCallback_(d);goog.isFunction(goog.global.setImmediate)&&(c||goog.async.nextTick.useSetImmediate_())?goog.global.setImmediate(d):(goog.async.nextTick.setImmediate_||(goog.async.nextTick.setImmediate_=goog.async.nextTick.getSetImmediateEmulator_()),goog.async.nextTick.setImmediate_(d))};
 goog.async.nextTick.useSetImmediate_=function(){return goog.global.Window&&goog.global.Window.prototype&&!goog.labs.userAgent.browser.isEdge()&&goog.global.Window.prototype.setImmediate==goog.global.setImmediate?!1:!0};
 goog.async.nextTick.getSetImmediateEmulator_=function(){var a=goog.global.MessageChannel;"undefined"===typeof a&&"undefined"!==typeof window&&window.postMessage&&window.addEventListener&&!goog.labs.userAgent.engine.isPresto()&&(a=function(){var a=document.createElement("IFRAME");a.style.display="none";a.src="";document.documentElement.appendChild(a);var b=a.contentWindow;a=b.document;a.open();a.write("");a.close();var c="callImmediate"+Math.random(),d="file:"==b.location.protocol?"*":b.location.protocol+
 "//"+b.location.host;a=goog.bind(function(a){if(("*"==d||a.origin==d)&&a.data==c)this.port1.onmessage()},this);b.addEventListener("message",a,!1);this.port1={};this.port2={postMessage:function(){b.postMessage(c,d)}}});if("undefined"!==typeof a&&!goog.labs.userAgent.browser.isIE()){var b=new a,c={},d=c;b.port1.onmessage=function(){if(goog.isDef(c.next)){c=c.next;var a=c.cb;c.cb=null;a()}};return function(a){d.next={cb:a};d=d.next;b.port2.postMessage(0)}}return"undefined"!==typeof document&&"onreadystatechange"in
-document.createElement("SCRIPT")?function(a){var b=document.createElement("SCRIPT");b.onreadystatechange=function(){b.onreadystatechange=null;b.parentNode.removeChild(b);b=null;a();a=null};document.documentElement.appendChild(b)}:function(a){goog.global.setTimeout(a,0)}};goog.async.nextTick.wrapCallback_=goog.functions.identity;goog.debug.entryPointRegistry.register(function(a){goog.async.nextTick.wrapCallback_=a});goog.async.run=function(a,b){goog.async.run.schedule_||goog.async.run.initializeRunner_();goog.async.run.workQueueScheduled_||(goog.async.run.schedule_(),goog.async.run.workQueueScheduled_=!0);goog.async.run.workQueue_.add(a,b)};goog.async.run.initializeRunner_=function(){if(goog.global.Promise&&goog.global.Promise.resolve){var a=goog.global.Promise.resolve(void 0);goog.async.run.schedule_=function(){a.then(goog.async.run.processWorkQueue)}}else goog.async.run.schedule_=function(){goog.async.nextTick(goog.async.run.processWorkQueue)}};
+document.createElement("SCRIPT")?function(a){var b=document.createElement("SCRIPT");b.onreadystatechange=function(){b.onreadystatechange=null;b.parentNode.removeChild(b);b=null;a();a=null};document.documentElement.appendChild(b)}:function(a){goog.global.setTimeout(a,0)}};goog.async.nextTick.wrapCallback_=goog.functions.identity;goog.debug.entryPointRegistry.register(function(a){goog.async.nextTick.wrapCallback_=a});goog.async.run=function(a,b){goog.async.run.schedule_||goog.async.run.initializeRunner_();goog.async.run.workQueueScheduled_||(goog.async.run.schedule_(),goog.async.run.workQueueScheduled_=!0);goog.async.run.workQueue_.add(a,b)};goog.async.run.initializeRunner_=function(){if(-1!=String(goog.global.Promise).indexOf("[native code]")){var a=goog.global.Promise.resolve(void 0);goog.async.run.schedule_=function(){a.then(goog.async.run.processWorkQueue)}}else goog.async.run.schedule_=function(){goog.async.nextTick(goog.async.run.processWorkQueue)}};
 goog.async.run.forceNextTick=function(a){goog.async.run.schedule_=function(){goog.async.nextTick(goog.async.run.processWorkQueue);a&&a(goog.async.run.processWorkQueue)}};goog.async.run.workQueueScheduled_=!1;goog.async.run.workQueue_=new goog.async.WorkQueue;goog.DEBUG&&(goog.async.run.resetQueue=function(){goog.async.run.workQueueScheduled_=!1;goog.async.run.workQueue_=new goog.async.WorkQueue});
 goog.async.run.processWorkQueue=function(){for(var a;a=goog.async.run.workQueue_.remove();){try{a.fn.call(a.scope)}catch(b){goog.async.throwException(b)}goog.async.run.workQueue_.returnUnused(a)}goog.async.run.workQueueScheduled_=!1};goog.promise={};goog.promise.Resolver=function(){};goog.Promise=function(a,b){this.state_=goog.Promise.State_.PENDING;this.result_=void 0;this.callbackEntriesTail_=this.callbackEntries_=this.parent_=null;this.executing_=!1;0<goog.Promise.UNHANDLED_REJECTION_DELAY?this.unhandledRejectionId_=0:0==goog.Promise.UNHANDLED_REJECTION_DELAY&&(this.hadUnhandledRejection_=!1);goog.Promise.LONG_STACK_TRACES&&(this.stack_=[],this.addStackTrace_(Error("created")),this.currentStep_=0);if(a!=goog.nullFunction)try{var c=this;a.call(b,function(a){c.resolve_(goog.Promise.State_.FULFILLED,
 a)},function(a){if(goog.DEBUG&&!(a instanceof goog.Promise.CancellationError))try{if(a instanceof Error)throw a;throw Error("Promise rejected.");}catch(e){}c.resolve_(goog.Promise.State_.REJECTED,a)})}catch(d){this.resolve_(goog.Promise.State_.REJECTED,d)}};goog.Promise.LONG_STACK_TRACES=!1;goog.Promise.UNHANDLED_REJECTION_DELAY=0;goog.Promise.State_={PENDING:0,BLOCKED:1,FULFILLED:2,REJECTED:3};
@@ -217,21 +215,7 @@ 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.labs.userAgent.platform={};goog.labs.userAgent.platform.isAndroid=function(){return goog.labs.userAgent.util.matchUserAgent("Android")};goog.labs.userAgent.platform.isIpod=function(){return goog.labs.userAgent.util.matchUserAgent("iPod")};goog.labs.userAgent.platform.isIphone=function(){return goog.labs.userAgent.util.matchUserAgent("iPhone")&&!goog.labs.userAgent.util.matchUserAgent("iPod")&&!goog.labs.userAgent.util.matchUserAgent("iPad")};goog.labs.userAgent.platform.isIpad=function(){return goog.labs.userAgent.util.matchUserAgent("iPad")};
-goog.labs.userAgent.platform.isIos=function(){return goog.labs.userAgent.platform.isIphone()||goog.labs.userAgent.platform.isIpad()||goog.labs.userAgent.platform.isIpod()};goog.labs.userAgent.platform.isMacintosh=function(){return goog.labs.userAgent.util.matchUserAgent("Macintosh")};goog.labs.userAgent.platform.isLinux=function(){return goog.labs.userAgent.util.matchUserAgent("Linux")};goog.labs.userAgent.platform.isWindows=function(){return goog.labs.userAgent.util.matchUserAgent("Windows")};
-goog.labs.userAgent.platform.isChromeOS=function(){return goog.labs.userAgent.util.matchUserAgent("CrOS")};goog.labs.userAgent.platform.isChromecast=function(){return goog.labs.userAgent.util.matchUserAgent("CrKey")};
-goog.labs.userAgent.platform.getVersion=function(){var a=goog.labs.userAgent.util.getUserAgent(),b="";goog.labs.userAgent.platform.isWindows()?(b=/Windows (?:NT|Phone) ([0-9.]+)/,b=(a=b.exec(a))?a[1]:"0.0"):goog.labs.userAgent.platform.isIos()?(b=/(?:iPhone|iPod|iPad|CPU)\s+OS\s+(\S+)/,b=(a=b.exec(a))&&a[1].replace(/_/g,".")):goog.labs.userAgent.platform.isMacintosh()?(b=/Mac OS X ([0-9_.]+)/,b=(a=b.exec(a))?a[1].replace(/_/g,"."):"10"):goog.labs.userAgent.platform.isAndroid()?(b=/Android\s+([^\);]+)(\)|;)/,
-b=(a=b.exec(a))&&a[1]):goog.labs.userAgent.platform.isChromeOS()&&(b=/(?:CrOS\s+(?:i686|x86_64)\s+([0-9.]+))/,b=(a=b.exec(a))&&a[1]);return b||""};goog.labs.userAgent.platform.isVersionOrHigher=function(a){return 0<=goog.string.compareVersions(goog.labs.userAgent.platform.getVersion(),a)};goog.reflect={};goog.reflect.object=function(a,b){return b};goog.reflect.objectProperty=function(a,b){return a};goog.reflect.sinkValue=function(a){goog.reflect.sinkValue[" "](a);return a};goog.reflect.sinkValue[" "]=goog.nullFunction;goog.reflect.canAccessProperty=function(a,b){try{return goog.reflect.sinkValue(a[b]),!0}catch(c){}return!1};goog.reflect.cache=function(a,b,c,d){d=d?d(b):b;return Object.prototype.hasOwnProperty.call(a,d)?a[d]:a[d]=c(b)};goog.userAgent={};goog.userAgent.ASSUME_IE=!1;goog.userAgent.ASSUME_EDGE=!1;goog.userAgent.ASSUME_GECKO=!1;goog.userAgent.ASSUME_WEBKIT=!1;goog.userAgent.ASSUME_MOBILE_WEBKIT=!1;goog.userAgent.ASSUME_OPERA=!1;goog.userAgent.ASSUME_ANY_VERSION=!1;goog.userAgent.BROWSER_KNOWN_=goog.userAgent.ASSUME_IE||goog.userAgent.ASSUME_EDGE||goog.userAgent.ASSUME_GECKO||goog.userAgent.ASSUME_MOBILE_WEBKIT||goog.userAgent.ASSUME_WEBKIT||goog.userAgent.ASSUME_OPERA;goog.userAgent.getUserAgentString=function(){return goog.labs.userAgent.util.getUserAgent()};
-goog.userAgent.getNavigatorTyped=function(){return goog.global.navigator||null};goog.userAgent.getNavigator=function(){return goog.userAgent.getNavigatorTyped()};goog.userAgent.OPERA=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_OPERA:goog.labs.userAgent.browser.isOpera();goog.userAgent.IE=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_IE:goog.labs.userAgent.browser.isIE();goog.userAgent.EDGE=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_EDGE:goog.labs.userAgent.engine.isEdge();
-goog.userAgent.EDGE_OR_IE=goog.userAgent.EDGE||goog.userAgent.IE;goog.userAgent.GECKO=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_GECKO:goog.labs.userAgent.engine.isGecko();goog.userAgent.WEBKIT=goog.userAgent.BROWSER_KNOWN_?goog.userAgent.ASSUME_WEBKIT||goog.userAgent.ASSUME_MOBILE_WEBKIT:goog.labs.userAgent.engine.isWebKit();goog.userAgent.isMobile_=function(){return goog.userAgent.WEBKIT&&goog.labs.userAgent.util.matchUserAgent("Mobile")};
-goog.userAgent.MOBILE=goog.userAgent.ASSUME_MOBILE_WEBKIT||goog.userAgent.isMobile_();goog.userAgent.SAFARI=goog.userAgent.WEBKIT;goog.userAgent.determinePlatform_=function(){var a=goog.userAgent.getNavigatorTyped();return a&&a.platform||""};goog.userAgent.PLATFORM=goog.userAgent.determinePlatform_();goog.userAgent.ASSUME_MAC=!1;goog.userAgent.ASSUME_WINDOWS=!1;goog.userAgent.ASSUME_LINUX=!1;goog.userAgent.ASSUME_X11=!1;goog.userAgent.ASSUME_ANDROID=!1;goog.userAgent.ASSUME_IPHONE=!1;
-goog.userAgent.ASSUME_IPAD=!1;goog.userAgent.ASSUME_IPOD=!1;goog.userAgent.PLATFORM_KNOWN_=goog.userAgent.ASSUME_MAC||goog.userAgent.ASSUME_WINDOWS||goog.userAgent.ASSUME_LINUX||goog.userAgent.ASSUME_X11||goog.userAgent.ASSUME_ANDROID||goog.userAgent.ASSUME_IPHONE||goog.userAgent.ASSUME_IPAD||goog.userAgent.ASSUME_IPOD;goog.userAgent.MAC=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_MAC:goog.labs.userAgent.platform.isMacintosh();
-goog.userAgent.WINDOWS=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_WINDOWS:goog.labs.userAgent.platform.isWindows();goog.userAgent.isLegacyLinux_=function(){return goog.labs.userAgent.platform.isLinux()||goog.labs.userAgent.platform.isChromeOS()};goog.userAgent.LINUX=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_LINUX:goog.userAgent.isLegacyLinux_();goog.userAgent.isX11_=function(){var a=goog.userAgent.getNavigatorTyped();return!!a&&goog.string.contains(a.appVersion||"","X11")};
-goog.userAgent.X11=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_X11:goog.userAgent.isX11_();goog.userAgent.ANDROID=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_ANDROID:goog.labs.userAgent.platform.isAndroid();goog.userAgent.IPHONE=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_IPHONE:goog.labs.userAgent.platform.isIphone();goog.userAgent.IPAD=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_IPAD:goog.labs.userAgent.platform.isIpad();
-goog.userAgent.IPOD=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_IPOD:goog.labs.userAgent.platform.isIpod();goog.userAgent.IOS=goog.userAgent.PLATFORM_KNOWN_?goog.userAgent.ASSUME_IPHONE||goog.userAgent.ASSUME_IPAD||goog.userAgent.ASSUME_IPOD:goog.labs.userAgent.platform.isIos();goog.userAgent.determineVersion_=function(){var a="",b=goog.userAgent.getVersionRegexResult_();b&&(a=b?b[1]:"");return goog.userAgent.IE&&(b=goog.userAgent.getDocumentMode_(),null!=b&&b>parseFloat(a))?String(b):a};
-goog.userAgent.getVersionRegexResult_=function(){var a=goog.userAgent.getUserAgentString();if(goog.userAgent.GECKO)return/rv:([^\);]+)(\)|;)/.exec(a);if(goog.userAgent.EDGE)return/Edge\/([\d\.]+)/.exec(a);if(goog.userAgent.IE)return/\b(?:MSIE|rv)[: ]([^\);]+)(\)|;)/.exec(a);if(goog.userAgent.WEBKIT)return/WebKit\/(\S+)/.exec(a);if(goog.userAgent.OPERA)return/(?:Version)[ \/]?(\S+)/.exec(a)};goog.userAgent.getDocumentMode_=function(){var a=goog.global.document;return a?a.documentMode:void 0};
-goog.userAgent.VERSION=goog.userAgent.determineVersion_();goog.userAgent.compare=function(a,b){return goog.string.compareVersions(a,b)};goog.userAgent.isVersionOrHigherCache_={};goog.userAgent.isVersionOrHigher=function(a){return goog.userAgent.ASSUME_ANY_VERSION||goog.reflect.cache(goog.userAgent.isVersionOrHigherCache_,a,function(){return 0<=goog.string.compareVersions(goog.userAgent.VERSION,a)})};goog.userAgent.isVersion=goog.userAgent.isVersionOrHigher;
-goog.userAgent.isDocumentModeOrHigher=function(a){return Number(goog.userAgent.DOCUMENT_MODE)>=a};goog.userAgent.isDocumentMode=goog.userAgent.isDocumentModeOrHigher;goog.userAgent.DOCUMENT_MODE=function(){var a=goog.global.document,b=goog.userAgent.getDocumentMode_();if(a&&goog.userAgent.IE)return b||("CSS1Compat"==a.compatMode?parseInt(goog.userAgent.VERSION,10):5)}();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.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(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(", ")+" ]"};
@@ -249,14 +233,14 @@ goog.events.BrowserFeature={HAS_W3C_BUTTON:!goog.userAgent.IE||goog.userAgent.is
 goog.userAgent.OPERA&&goog.userAgent.isVersionOrHigher("9.5")||goog.userAgent.WEBKIT&&goog.userAgent.isVersionOrHigher("528"),HTML5_NETWORK_EVENTS_FIRE_ON_BODY:goog.userAgent.GECKO&&!goog.userAgent.isVersionOrHigher("8")||goog.userAgent.IE&&!goog.userAgent.isVersionOrHigher("9"),TOUCH_ENABLED:"ontouchstart"in goog.global||!!(goog.global.document&&document.documentElement&&"ontouchstart"in document.documentElement)||!(!goog.global.navigator||!goog.global.navigator.maxTouchPoints&&!goog.global.navigator.msMaxTouchPoints),
 POINTER_EVENTS:"PointerEvent"in goog.global,MSPOINTER_EVENTS:"MSPointerEvent"in goog.global&&!(!goog.global.navigator||!goog.global.navigator.msPointerEnabled),PASSIVE_EVENTS:(0,$jscomp.scope.purify)(function(){if(!goog.global.addEventListener||!Object.defineProperty)return!1;var a=!1,b=Object.defineProperty({},"passive",{get:function(){a=!0}});goog.global.addEventListener("test",goog.nullFunction,b);goog.global.removeEventListener("test",goog.nullFunction,b);return a})};goog.events.EventId=function(a){this.id=a};goog.events.EventId.prototype.toString=function(){return this.id};goog.events.Event=function(a,b){this.type=a instanceof goog.events.EventId?String(a):a;this.currentTarget=this.target=b;this.defaultPrevented=this.propagationStopped_=!1;this.returnValue_=!0};goog.events.Event.prototype.stopPropagation=function(){this.propagationStopped_=!0};goog.events.Event.prototype.preventDefault=function(){this.defaultPrevented=!0;this.returnValue_=!1};goog.events.Event.stopPropagation=function(a){a.stopPropagation()};goog.events.Event.preventDefault=function(a){a.preventDefault()};goog.events.getVendorPrefixedName_=function(a){return goog.userAgent.WEBKIT?"webkit"+a:goog.userAgent.OPERA?"o"+a.toLowerCase():a.toLowerCase()};
 goog.events.EventType={CLICK:"click",RIGHTCLICK:"rightclick",DBLCLICK:"dblclick",MOUSEDOWN:"mousedown",MOUSEUP:"mouseup",MOUSEOVER:"mouseover",MOUSEOUT:"mouseout",MOUSEMOVE:"mousemove",MOUSEENTER:"mouseenter",MOUSELEAVE:"mouseleave",SELECTIONCHANGE:"selectionchange",SELECTSTART:"selectstart",WHEEL:"wheel",KEYPRESS:"keypress",KEYDOWN:"keydown",KEYUP:"keyup",BLUR:"blur",FOCUS:"focus",DEACTIVATE:"deactivate",FOCUSIN:"focusin",FOCUSOUT:"focusout",CHANGE:"change",RESET:"reset",SELECT:"select",SUBMIT:"submit",
-INPUT:"input",PROPERTYCHANGE:"propertychange",DRAGSTART:"dragstart",DRAG:"drag",DRAGENTER:"dragenter",DRAGOVER:"dragover",DRAGLEAVE:"dragleave",DROP:"drop",DRAGEND:"dragend",TOUCHSTART:"touchstart",TOUCHMOVE:"touchmove",TOUCHEND:"touchend",TOUCHCANCEL:"touchcancel",BEFOREUNLOAD:"beforeunload",CONSOLEMESSAGE:"consolemessage",CONTEXTMENU:"contextmenu",DEVICECHANGE:"devicechange",DEVICEMOTION:"devicemotion",DEVICEORIENTATION:"deviceorientation",DOMCONTENTLOADED:"DOMContentLoaded",ERROR:"error",HELP:"help",
-LOAD:"load",LOSECAPTURE:"losecapture",ORIENTATIONCHANGE:"orientationchange",READYSTATECHANGE:"readystatechange",RESIZE:"resize",SCROLL:"scroll",UNLOAD:"unload",CANPLAY:"canplay",CANPLAYTHROUGH:"canplaythrough",DURATIONCHANGE:"durationchange",EMPTIED:"emptied",ENDED:"ended",LOADEDDATA:"loadeddata",LOADEDMETADATA:"loadedmetadata",PAUSE:"pause",PLAY:"play",PLAYING:"playing",RATECHANGE:"ratechange",SEEKED:"seeked",SEEKING:"seeking",STALLED:"stalled",SUSPEND:"suspend",TIMEUPDATE:"timeupdate",VOLUMECHANGE:"volumechange",
-WAITING:"waiting",SOURCEOPEN:"sourceopen",SOURCEENDED:"sourceended",SOURCECLOSED:"sourceclosed",ABORT:"abort",UPDATE:"update",UPDATESTART:"updatestart",UPDATEEND:"updateend",HASHCHANGE:"hashchange",PAGEHIDE:"pagehide",PAGESHOW:"pageshow",POPSTATE:"popstate",COPY:"copy",PASTE:"paste",CUT:"cut",BEFORECOPY:"beforecopy",BEFORECUT:"beforecut",BEFOREPASTE:"beforepaste",ONLINE:"online",OFFLINE:"offline",MESSAGE:"message",CONNECT:"connect",INSTALL:"install",ACTIVATE:"activate",FETCH:"fetch",FOREIGNFETCH:"foreignfetch",
-MESSAGEERROR:"messageerror",STATECHANGE:"statechange",UPDATEFOUND:"updatefound",CONTROLLERCHANGE:"controllerchange",ANIMATIONSTART:goog.events.getVendorPrefixedName_("AnimationStart"),ANIMATIONEND:goog.events.getVendorPrefixedName_("AnimationEnd"),ANIMATIONITERATION:goog.events.getVendorPrefixedName_("AnimationIteration"),TRANSITIONEND:goog.events.getVendorPrefixedName_("TransitionEnd"),POINTERDOWN:"pointerdown",POINTERUP:"pointerup",POINTERCANCEL:"pointercancel",POINTERMOVE:"pointermove",POINTEROVER:"pointerover",
-POINTEROUT:"pointerout",POINTERENTER:"pointerenter",POINTERLEAVE:"pointerleave",GOTPOINTERCAPTURE:"gotpointercapture",LOSTPOINTERCAPTURE:"lostpointercapture",MSGESTURECHANGE:"MSGestureChange",MSGESTUREEND:"MSGestureEnd",MSGESTUREHOLD:"MSGestureHold",MSGESTURESTART:"MSGestureStart",MSGESTURETAP:"MSGestureTap",MSGOTPOINTERCAPTURE:"MSGotPointerCapture",MSINERTIASTART:"MSInertiaStart",MSLOSTPOINTERCAPTURE:"MSLostPointerCapture",MSPOINTERCANCEL:"MSPointerCancel",MSPOINTERDOWN:"MSPointerDown",MSPOINTERENTER:"MSPointerEnter",
-MSPOINTERHOVER:"MSPointerHover",MSPOINTERLEAVE:"MSPointerLeave",MSPOINTERMOVE:"MSPointerMove",MSPOINTEROUT:"MSPointerOut",MSPOINTEROVER:"MSPointerOver",MSPOINTERUP:"MSPointerUp",TEXT:"text",TEXTINPUT:goog.userAgent.IE?"textinput":"textInput",COMPOSITIONSTART:"compositionstart",COMPOSITIONUPDATE:"compositionupdate",COMPOSITIONEND:"compositionend",BEFOREINPUT:"beforeinput",EXIT:"exit",LOADABORT:"loadabort",LOADCOMMIT:"loadcommit",LOADREDIRECT:"loadredirect",LOADSTART:"loadstart",LOADSTOP:"loadstop",
-RESPONSIVE:"responsive",SIZECHANGED:"sizechanged",UNRESPONSIVE:"unresponsive",VISIBILITYCHANGE:"visibilitychange",STORAGE:"storage",DOMSUBTREEMODIFIED:"DOMSubtreeModified",DOMNODEINSERTED:"DOMNodeInserted",DOMNODEREMOVED:"DOMNodeRemoved",DOMNODEREMOVEDFROMDOCUMENT:"DOMNodeRemovedFromDocument",DOMNODEINSERTEDINTODOCUMENT:"DOMNodeInsertedIntoDocument",DOMATTRMODIFIED:"DOMAttrModified",DOMCHARACTERDATAMODIFIED:"DOMCharacterDataModified",BEFOREPRINT:"beforeprint",AFTERPRINT:"afterprint",BEFOREINSTALLPROMPT:"beforeinstallprompt",
-APPINSTALLED:"appinstalled"};goog.events.getPointerFallbackEventName_=function(a,b,c){return goog.events.BrowserFeature.POINTER_EVENTS?a:goog.events.BrowserFeature.MSPOINTER_EVENTS?b:c};
+INPUT:"input",PROPERTYCHANGE:"propertychange",DRAGSTART:"dragstart",DRAG:"drag",DRAGENTER:"dragenter",DRAGOVER:"dragover",DRAGLEAVE:"dragleave",DROP:"drop",DRAGEND:"dragend",TOUCHSTART:"touchstart",TOUCHMOVE:"touchmove",TOUCHEND:"touchend",TOUCHCANCEL:"touchcancel",BEFOREUNLOAD:"beforeunload",CONSOLEMESSAGE:"consolemessage",CONTEXTMENU:"contextmenu",DEVICEMOTION:"devicemotion",DEVICEORIENTATION:"deviceorientation",DOMCONTENTLOADED:"DOMContentLoaded",ERROR:"error",HELP:"help",LOAD:"load",LOSECAPTURE:"losecapture",
+ORIENTATIONCHANGE:"orientationchange",READYSTATECHANGE:"readystatechange",RESIZE:"resize",SCROLL:"scroll",UNLOAD:"unload",CANPLAY:"canplay",CANPLAYTHROUGH:"canplaythrough",DURATIONCHANGE:"durationchange",EMPTIED:"emptied",ENDED:"ended",LOADEDDATA:"loadeddata",LOADEDMETADATA:"loadedmetadata",PAUSE:"pause",PLAY:"play",PLAYING:"playing",RATECHANGE:"ratechange",SEEKED:"seeked",SEEKING:"seeking",STALLED:"stalled",SUSPEND:"suspend",TIMEUPDATE:"timeupdate",VOLUMECHANGE:"volumechange",WAITING:"waiting",SOURCEOPEN:"sourceopen",
+SOURCEENDED:"sourceended",SOURCECLOSED:"sourceclosed",ABORT:"abort",UPDATE:"update",UPDATESTART:"updatestart",UPDATEEND:"updateend",HASHCHANGE:"hashchange",PAGEHIDE:"pagehide",PAGESHOW:"pageshow",POPSTATE:"popstate",COPY:"copy",PASTE:"paste",CUT:"cut",BEFORECOPY:"beforecopy",BEFORECUT:"beforecut",BEFOREPASTE:"beforepaste",ONLINE:"online",OFFLINE:"offline",MESSAGE:"message",CONNECT:"connect",INSTALL:"install",ACTIVATE:"activate",FETCH:"fetch",FOREIGNFETCH:"foreignfetch",MESSAGEERROR:"messageerror",
+STATECHANGE:"statechange",UPDATEFOUND:"updatefound",CONTROLLERCHANGE:"controllerchange",ANIMATIONSTART:goog.events.getVendorPrefixedName_("AnimationStart"),ANIMATIONEND:goog.events.getVendorPrefixedName_("AnimationEnd"),ANIMATIONITERATION:goog.events.getVendorPrefixedName_("AnimationIteration"),TRANSITIONEND:goog.events.getVendorPrefixedName_("TransitionEnd"),POINTERDOWN:"pointerdown",POINTERUP:"pointerup",POINTERCANCEL:"pointercancel",POINTERMOVE:"pointermove",POINTEROVER:"pointerover",POINTEROUT:"pointerout",
+POINTERENTER:"pointerenter",POINTERLEAVE:"pointerleave",GOTPOINTERCAPTURE:"gotpointercapture",LOSTPOINTERCAPTURE:"lostpointercapture",MSGESTURECHANGE:"MSGestureChange",MSGESTUREEND:"MSGestureEnd",MSGESTUREHOLD:"MSGestureHold",MSGESTURESTART:"MSGestureStart",MSGESTURETAP:"MSGestureTap",MSGOTPOINTERCAPTURE:"MSGotPointerCapture",MSINERTIASTART:"MSInertiaStart",MSLOSTPOINTERCAPTURE:"MSLostPointerCapture",MSPOINTERCANCEL:"MSPointerCancel",MSPOINTERDOWN:"MSPointerDown",MSPOINTERENTER:"MSPointerEnter",MSPOINTERHOVER:"MSPointerHover",
+MSPOINTERLEAVE:"MSPointerLeave",MSPOINTERMOVE:"MSPointerMove",MSPOINTEROUT:"MSPointerOut",MSPOINTEROVER:"MSPointerOver",MSPOINTERUP:"MSPointerUp",TEXT:"text",TEXTINPUT:goog.userAgent.IE?"textinput":"textInput",COMPOSITIONSTART:"compositionstart",COMPOSITIONUPDATE:"compositionupdate",COMPOSITIONEND:"compositionend",BEFOREINPUT:"beforeinput",EXIT:"exit",LOADABORT:"loadabort",LOADCOMMIT:"loadcommit",LOADREDIRECT:"loadredirect",LOADSTART:"loadstart",LOADSTOP:"loadstop",RESPONSIVE:"responsive",SIZECHANGED:"sizechanged",
+UNRESPONSIVE:"unresponsive",VISIBILITYCHANGE:"visibilitychange",STORAGE:"storage",DOMSUBTREEMODIFIED:"DOMSubtreeModified",DOMNODEINSERTED:"DOMNodeInserted",DOMNODEREMOVED:"DOMNodeRemoved",DOMNODEREMOVEDFROMDOCUMENT:"DOMNodeRemovedFromDocument",DOMNODEINSERTEDINTODOCUMENT:"DOMNodeInsertedIntoDocument",DOMATTRMODIFIED:"DOMAttrModified",DOMCHARACTERDATAMODIFIED:"DOMCharacterDataModified",BEFOREPRINT:"beforeprint",AFTERPRINT:"afterprint",BEFOREINSTALLPROMPT:"beforeinstallprompt",APPINSTALLED:"appinstalled"};
+goog.events.getPointerFallbackEventName_=function(a,b,c){return goog.events.BrowserFeature.POINTER_EVENTS?a:goog.events.BrowserFeature.MSPOINTER_EVENTS?b:c};
 goog.events.PointerFallbackEventType={POINTERDOWN:goog.events.getPointerFallbackEventName_(goog.events.EventType.POINTERDOWN,goog.events.EventType.MSPOINTERDOWN,goog.events.EventType.MOUSEDOWN),POINTERUP:goog.events.getPointerFallbackEventName_(goog.events.EventType.POINTERUP,goog.events.EventType.MSPOINTERUP,goog.events.EventType.MOUSEUP),POINTERCANCEL:goog.events.getPointerFallbackEventName_(goog.events.EventType.POINTERCANCEL,goog.events.EventType.MSPOINTERCANCEL,"mousecancel"),POINTERMOVE:goog.events.getPointerFallbackEventName_(goog.events.EventType.POINTERMOVE,
 goog.events.EventType.MSPOINTERMOVE,goog.events.EventType.MOUSEMOVE),POINTEROVER:goog.events.getPointerFallbackEventName_(goog.events.EventType.POINTEROVER,goog.events.EventType.MSPOINTEROVER,goog.events.EventType.MOUSEOVER),POINTEROUT:goog.events.getPointerFallbackEventName_(goog.events.EventType.POINTEROUT,goog.events.EventType.MSPOINTEROUT,goog.events.EventType.MOUSEOUT),POINTERENTER:goog.events.getPointerFallbackEventName_(goog.events.EventType.POINTERENTER,goog.events.EventType.MSPOINTERENTER,
 goog.events.EventType.MOUSEENTER),POINTERLEAVE:goog.events.getPointerFallbackEventName_(goog.events.EventType.POINTERLEAVE,goog.events.EventType.MSPOINTERLEAVE,goog.events.EventType.MOUSELEAVE)};goog.events.BrowserEvent=function(a,b){goog.events.Event.call(this,a?a.type:"");this.relatedTarget=this.currentTarget=this.target=null;this.button=this.screenY=this.screenX=this.clientY=this.clientX=this.offsetY=this.offsetX=0;this.key="";this.charCode=this.keyCode=0;this.metaKey=this.shiftKey=this.altKey=this.ctrlKey=!1;this.state=null;this.platformModifierKey=!1;this.pointerId=0;this.pointerType="";this.event_=null;a&&this.init(a,b)};goog.inherits(goog.events.BrowserEvent,goog.events.Event);
@@ -385,8 +369,8 @@ null);return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(e
 goog.html.SafeHtml.combineAttributes=function(a,b,c){var d={},e;for(e in a)goog.asserts.assert(e.toLowerCase()==e,"Must be lower case"),d[e]=a[e];for(e in b)goog.asserts.assert(e.toLowerCase()==e,"Must be lower case"),d[e]=b[e];for(e in c){var f=e.toLowerCase();if(f in a)throw Error('Cannot override "'+f+'" attribute, got "'+e+'" with value "'+c[e]+'"');f in b&&delete d[f];d[e]=c[e]}return d};
 goog.html.SafeHtml.DOCTYPE_HTML=goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse("<!DOCTYPE html>",goog.i18n.bidi.Dir.NEUTRAL);goog.html.SafeHtml.EMPTY=goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse("",goog.i18n.bidi.Dir.NEUTRAL);goog.html.SafeHtml.BR=goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse("<br>",goog.i18n.bidi.Dir.NEUTRAL);goog.dom.safe={};goog.dom.safe.InsertAdjacentHtmlPosition={AFTERBEGIN:"afterbegin",AFTEREND:"afterend",BEFOREBEGIN:"beforebegin",BEFOREEND:"beforeend"};goog.dom.safe.insertAdjacentHtml=function(a,b,c){a.insertAdjacentHTML(b,goog.html.SafeHtml.unwrap(c))};goog.dom.safe.SET_INNER_HTML_DISALLOWED_TAGS_={MATH:!0,SCRIPT:!0,STYLE:!0,SVG:!0,TEMPLATE:!0};
 goog.dom.safe.setInnerHtml=function(a,b){if(goog.asserts.ENABLE_ASSERTS){var c=a.tagName.toUpperCase();if(goog.dom.safe.SET_INNER_HTML_DISALLOWED_TAGS_[c])throw Error("goog.dom.safe.setInnerHtml cannot be used to set content of "+a.tagName+".");}a.innerHTML=goog.html.SafeHtml.unwrap(b)};goog.dom.safe.setOuterHtml=function(a,b){a.outerHTML=goog.html.SafeHtml.unwrap(b)};
-goog.dom.safe.setFormElementAction=function(a,b){var c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitizeAssertUnchanged(b);goog.dom.asserts.assertIsHTMLFormElement(a).action=goog.html.SafeUrl.unwrap(c)};goog.dom.safe.setButtonFormAction=function(a,b){var c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitizeAssertUnchanged(b);goog.dom.asserts.assertIsHTMLButtonElement(a).formAction=goog.html.SafeUrl.unwrap(c)};
-goog.dom.safe.setInputFormAction=function(a,b){var c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitizeAssertUnchanged(b);goog.dom.asserts.assertIsHTMLInputElement(a).formAction=goog.html.SafeUrl.unwrap(c)};goog.dom.safe.setStyle=function(a,b){a.style.cssText=goog.html.SafeStyle.unwrap(b)};goog.dom.safe.documentWrite=function(a,b){a.write(goog.html.SafeHtml.unwrap(b))};
+goog.dom.safe.setFormElementAction=function(a,b){var c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitizeAssertUnchanged(b);goog.dom.asserts.assertIsHTMLFormElement(a).action=goog.html.SafeUrl.unwrap(c)};goog.dom.safe.setButtonFormAction=function(a,b){var c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitizeAssertUnchanged(b);goog.dom.asserts.assertIsHTMLButtonElement(a).formaction=goog.html.SafeUrl.unwrap(c)};
+goog.dom.safe.setInputFormAction=function(a,b){var c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitizeAssertUnchanged(b);goog.dom.asserts.assertIsHTMLInputElement(a).formaction=goog.html.SafeUrl.unwrap(c)};goog.dom.safe.setStyle=function(a,b){a.style.cssText=goog.html.SafeStyle.unwrap(b)};goog.dom.safe.documentWrite=function(a,b){a.write(goog.html.SafeHtml.unwrap(b))};
 goog.dom.safe.setAnchorHref=function(a,b){goog.dom.asserts.assertIsHTMLAnchorElement(a);var c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitizeAssertUnchanged(b);a.href=goog.html.SafeUrl.unwrap(c)};goog.dom.safe.setImageSrc=function(a,b){goog.dom.asserts.assertIsHTMLImageElement(a);var c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitizeAssertUnchanged(b);a.src=goog.html.SafeUrl.unwrap(c)};
 goog.dom.safe.setVideoSrc=function(a,b){goog.dom.asserts.assertIsHTMLVideoElement(a);var c=b instanceof goog.html.SafeUrl?b:goog.html.SafeUrl.sanitizeAssertUnchanged(b);a.src=goog.html.SafeUrl.unwrap(c)};goog.dom.safe.setEmbedSrc=function(a,b){goog.dom.asserts.assertIsHTMLEmbedElement(a);a.src=goog.html.TrustedResourceUrl.unwrap(b)};goog.dom.safe.setFrameSrc=function(a,b){goog.dom.asserts.assertIsHTMLFrameElement(a);a.src=goog.html.TrustedResourceUrl.unwrap(b)};
 goog.dom.safe.setIframeSrc=function(a,b){goog.dom.asserts.assertIsHTMLIFrameElement(a);a.src=goog.html.TrustedResourceUrl.unwrap(b)};goog.dom.safe.setIframeSrcdoc=function(a,b){goog.dom.asserts.assertIsHTMLIFrameElement(a);a.srcdoc=goog.html.SafeHtml.unwrap(b)};
@@ -441,7 +425,7 @@ goog.dom.getTextContent_=function(a,b,c){if(!(a.nodeName in goog.dom.TAGS_TO_IGN
 goog.dom.getNodeTextOffset=function(a,b){for(var c=b||goog.dom.getOwnerDocument(a).body,d=[];a&&a!=c;){for(var e=a;e=e.previousSibling;)d.unshift(goog.dom.getTextContent(e));a=a.parentNode}return goog.string.trimLeft(d.join("")).replace(/ +/g," ").length};
 goog.dom.getNodeAtOffset=function(a,b,c){a=[a];for(var d=0,e=null;0<a.length&&d<b;)if(e=a.pop(),!(e.nodeName in goog.dom.TAGS_TO_IGNORE_))if(e.nodeType==goog.dom.NodeType.TEXT){var f=e.nodeValue.replace(/(\r\n|\r|\n)/g,"").replace(/ +/g," ");d+=f.length}else if(e.nodeName in goog.dom.PREDEFINED_TAG_VALUES_)d+=goog.dom.PREDEFINED_TAG_VALUES_[e.nodeName].length;else for(f=e.childNodes.length-1;0<=f;f--)a.push(e.childNodes[f]);goog.isObject(c)&&(c.remainder=e?e.nodeValue.length+b-d-1:0,c.node=e);return e};
 goog.dom.isNodeList=function(a){if(a&&"number"==typeof a.length){if(goog.isObject(a))return"function"==typeof a.item||"string"==typeof a.item;if(goog.isFunction(a))return"function"==typeof a.item}return!1};goog.dom.getAncestorByTagNameAndClass=function(a,b,c,d){if(!b&&!c)return null;var e=b?String(b).toUpperCase():null;return goog.dom.getAncestor(a,function(a){return(!e||a.nodeName==e)&&(!c||goog.isString(a.className)&&goog.array.contains(a.className.split(/\s+/),c))},!0,d)};
-goog.dom.getAncestorByClass=function(a,b,c){return goog.dom.getAncestorByTagNameAndClass(a,null,b,c)};goog.dom.getAncestor=function(a,b,c,d){a&&!c&&(a=a.parentNode);for(c=0;a&&(null==d||c<=d);){goog.asserts.assert("parentNode"!=a.name);if(b(a))return a;a=a.parentNode;c++}return null};goog.dom.getActiveElement=function(a){try{var b=a&&a.activeElement;return b&&b.nodeName?b:null}catch(c){return null}};
+goog.dom.getAncestorByClass=function(a,b,c){return goog.dom.getAncestorByTagNameAndClass(a,null,b,c)};goog.dom.getAncestor=function(a,b,c,d){a&&!c&&(a=a.parentNode);for(c=0;a&&(null==d||c<=d);){goog.asserts.assert("parentNode"!=a.name);if(b(a))return a;a=a.parentNode;c++}return null};goog.dom.getActiveElement=function(a){try{return a&&a.activeElement}catch(b){}return null};
 goog.dom.getPixelRatio=function(){var a=goog.dom.getWindow();return goog.isDef(a.devicePixelRatio)?a.devicePixelRatio:a.matchMedia?goog.dom.matchesPixelRatio_(3)||goog.dom.matchesPixelRatio_(2)||goog.dom.matchesPixelRatio_(1.5)||goog.dom.matchesPixelRatio_(1)||.75:1};goog.dom.matchesPixelRatio_=function(a){return goog.dom.getWindow().matchMedia("(min-resolution: "+a+"dppx),(min--moz-device-pixel-ratio: "+a+"),(min-resolution: "+96*a+"dpi)").matches?a:0};goog.dom.getCanvasContext2D=function(a){return a.getContext("2d")};
 goog.dom.DomHelper=function(a){this.document_=a||goog.global.document||document};goog.dom.DomHelper.prototype.getDomHelper=goog.dom.getDomHelper;goog.dom.DomHelper.prototype.setDocument=function(a){this.document_=a};goog.dom.DomHelper.prototype.getDocument=function(){return this.document_};goog.dom.DomHelper.prototype.getElement=function(a){return goog.dom.getElementHelper_(this.document_,a)};
 goog.dom.DomHelper.prototype.getRequiredElement=function(a){return goog.dom.getRequiredElementHelper_(this.document_,a)};goog.dom.DomHelper.prototype.$=goog.dom.DomHelper.prototype.getElement;goog.dom.DomHelper.prototype.getElementsByTagName=function(a,b){return(b||this.document_).getElementsByTagName(String(a))};goog.dom.DomHelper.prototype.getElementsByTagNameAndClass=function(a,b,c){return goog.dom.getElementsByTagNameAndClass_(this.document_,a,b,c)};
@@ -749,7 +733,7 @@ goog.ui.Menu.prototype.handleKeyEventInternal=function(a){var b=goog.ui.Menu.sup
 goog.ui.Menu.prototype.decorateContent=function(a){var b=this.getRenderer();a=this.getDomHelper().getElementsByTagNameAndClass("DIV",b.getCssClass()+"-content",a);for(var c=a.length,d=0;d<c;d++)b.decorateChildren(this,a[d])};goog.iter={};goog.iter.StopIteration="StopIteration"in goog.global?goog.global.StopIteration:{message:"StopIteration",stack:""};goog.iter.Iterator=function(){};goog.iter.Iterator.prototype.next=function(){throw goog.iter.StopIteration;};goog.iter.Iterator.prototype.__iterator__=function(a){return this};
 goog.iter.toIterator=function(a){if(a instanceof goog.iter.Iterator)return a;if("function"==typeof a.__iterator__)return a.__iterator__(!1);if(goog.isArrayLike(a)){var b=0,c=new goog.iter.Iterator;c.next=function(){for(;;){if(b>=a.length)throw goog.iter.StopIteration;if(b in a)return a[b++];b++}};return c}throw Error("Not implemented");};
 goog.iter.forEach=function(a,b,c){if(goog.isArrayLike(a))try{goog.array.forEach(a,b,c)}catch(d){if(d!==goog.iter.StopIteration)throw d;}else{a=goog.iter.toIterator(a);try{for(;;)b.call(c,a.next(),void 0,a)}catch(d){if(d!==goog.iter.StopIteration)throw d;}}};goog.iter.filter=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;a.next=function(){for(;;){var a=d.next();if(b.call(c,a,void 0,d))return a}};return a};
-goog.iter.filterFalse=function(a,b,c){return goog.iter.filter(a,goog.functions.not(b),c)};goog.iter.range=function(a,b,c){var d=0,e=a,f=c||1;1<arguments.length&&(d=a,e=+b);if(0==f)throw Error("Range step argument must not be zero");var g=new goog.iter.Iterator;g.next=function(){if(0<f&&d>=e||0>f&&d<=e)throw goog.iter.StopIteration;var a=d;d+=f;return a};return g};goog.iter.join=function(a,b){return goog.iter.toArray(a).join(b)};
+goog.iter.filterFalse=function(a,b,c){return goog.iter.filter(a,goog.functions.not(b),c)};goog.iter.range=function(a,b,c){var d=0,e=a,f=c||1;1<arguments.length&&(d=a,e=b);if(0==f)throw Error("Range step argument must not be zero");var g=new goog.iter.Iterator;g.next=function(){if(0<f&&d>=e||0>f&&d<=e)throw goog.iter.StopIteration;var a=d;d+=f;return a};return g};goog.iter.join=function(a,b){return goog.iter.toArray(a).join(b)};
 goog.iter.map=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;a.next=function(){var a=d.next();return b.call(c,a,void 0,d)};return a};goog.iter.reduce=function(a,b,c,d){var e=c;goog.iter.forEach(a,function(a){e=b.call(d,e,a)});return e};goog.iter.some=function(a,b,c){a=goog.iter.toIterator(a);try{for(;;)if(b.call(c,a.next(),void 0,a))return!0}catch(d){if(d!==goog.iter.StopIteration)throw d;}return!1};
 goog.iter.every=function(a,b,c){a=goog.iter.toIterator(a);try{for(;;)if(!b.call(c,a.next(),void 0,a))return!1}catch(d){if(d!==goog.iter.StopIteration)throw d;}return!0};goog.iter.chain=function(a){return goog.iter.chainFromIterable(arguments)};
 goog.iter.chainFromIterable=function(a){var b=goog.iter.toIterator(a);a=new goog.iter.Iterator;var c=null;a.next=function(){for(;;){if(null==c){var a=b.next();c=goog.iter.toIterator(a)}try{return c.next()}catch(e){if(e!==goog.iter.StopIteration)throw e;c=null}}};return a};goog.iter.dropWhile=function(a,b,c){var d=goog.iter.toIterator(a);a=new goog.iter.Iterator;var e=!0;a.next=function(){for(;;){var a=d.next();if(!e||!b.call(c,a,void 0,d))return e=!1,a}};return a};
@@ -930,10 +914,9 @@ Blockly.Events.isEnabled=function(){return 0==Blockly.Events.disabled_};Blockly.
 Blockly.Events.fromJson=function(a,b){switch(a.type){case Blockly.Events.CREATE:var c=new Blockly.Events.Create(null);break;case Blockly.Events.DELETE:c=new Blockly.Events.Delete(null);break;case Blockly.Events.CHANGE:c=new Blockly.Events.Change(null,"","","","");break;case Blockly.Events.MOVE:c=new Blockly.Events.Move(null);break;case Blockly.Events.VAR_CREATE:c=new Blockly.Events.VarCreate(null);break;case Blockly.Events.VAR_DELETE:c=new Blockly.Events.VarDelete(null);break;case Blockly.Events.VAR_RENAME:c=
 new Blockly.Events.VarRename(null,"");break;case Blockly.Events.UI:c=new Blockly.Events.Ui(null);break;default:throw"Unknown event type.";}c.fromJson(a);c.workspaceId=b.id;return c};
 Blockly.Events.disableOrphans=function(a){if(a.type==Blockly.Events.MOVE||a.type==Blockly.Events.CREATE){var b=Blockly.Workspace.getById(a.workspaceId);if(a=b.getBlockById(a.blockId))if(a.getParent()&&!a.getParent().disabled){b=a.getDescendants();a=0;for(var c;c=b[a];a++)c.setDisabled(!1)}else if((a.outputConnection||a.previousConnection)&&!b.isDragging()){do a.setDisabled(!0),a=a.getNextBlock();while(a)}}};
-Blockly.Events.Abstract=function(a){this.recordUndo=this.group=this.workspaceId=this.varId=this.blockId=void 0;a instanceof Blockly.Block?(this.blockId=a.id,this.workspaceId=a.workspace.id):a instanceof Blockly.VariableModel&&(this.workspaceId=a.workspace.id,this.varId=a.getId());this.group=Blockly.Events.group_;this.recordUndo=Blockly.Events.recordUndo};
-Blockly.Events.Abstract.prototype.toJson=function(){var a={type:this.type};this.blockId&&(a.blockId=this.blockId);this.varId&&(a.varId=this.varId);this.group&&(a.group=this.group);return a};Blockly.Events.Abstract.prototype.fromJson=function(a){this.blockId=a.blockId;this.varId=a.varId;this.group=a.group};Blockly.Events.Abstract.prototype.isNull=function(){return!1};Blockly.Events.Abstract.prototype.run=function(a){};
-Blockly.Events.Abstract.prototype.getEventWorkspace_=function(){var a=Blockly.Workspace.getById(this.workspaceId);if(!a)throw Error("Workspace is null. Event must have been generated from real Blockly events.");return a};Blockly.Events.VarDelete=function(a){a&&(Blockly.Events.VarDelete.superClass_.constructor.call(this,a),this.varType=a.type,this.varName=a.name)};goog.inherits(Blockly.Events.VarDelete,Blockly.Events.Abstract);Blockly.Events.VarDelete.prototype.type=Blockly.Events.VAR_DELETE;Blockly.Events.VarDelete.prototype.toJson=function(){var a=Blockly.Events.VarDelete.superClass_.toJson.call(this);a.varType=this.varType;a.varName=this.varName;return a};
-Blockly.Events.VarDelete.prototype.fromJson=function(a){Blockly.Events.VarDelete.superClass_.fromJson.call(this,a);this.varType=a.varType;this.varName=a.varName};Blockly.Events.VarDelete.prototype.run=function(a){var b=this.getEventWorkspace_();a?b.deleteVariableById(this.varId):b.createVariable(this.varName,this.varType,this.varId)};Blockly.Events.VarRename=function(a,b){a&&(Blockly.Events.VarRename.superClass_.constructor.call(this,a),this.oldName=a.name,this.newName=b)};goog.inherits(Blockly.Events.VarRename,Blockly.Events.Abstract);Blockly.Events.VarRename.prototype.type=Blockly.Events.VAR_RENAME;Blockly.Events.VarRename.prototype.toJson=function(){var a=Blockly.Events.VarRename.superClass_.toJson.call(this);a.oldName=this.oldName;a.newName=this.newName;return a};
+Blockly.Events.Abstract=function(){this.workspaceId=void 0;this.group=Blockly.Events.group_;this.recordUndo=Blockly.Events.recordUndo};Blockly.Events.Abstract.prototype.toJson=function(){var a={type:this.type};this.group&&(a.group=this.group);return a};Blockly.Events.Abstract.prototype.fromJson=function(a){this.group=a.group};Blockly.Events.Abstract.prototype.isNull=function(){return!1};Blockly.Events.Abstract.prototype.run=function(a){};
+Blockly.Events.Abstract.prototype.getEventWorkspace_=function(){var a=Blockly.Workspace.getById(this.workspaceId);if(!a)throw Error("Workspace is null. Event must have been generated from real Blockly events.");return a};Blockly.Events.VarBase=function(a){Blockly.Events.VarBase.superClass_.constructor.call(this);this.varId=a.getId();this.workspaceId=a.workspace.id};goog.inherits(Blockly.Events.VarBase,Blockly.Events.Abstract);Blockly.Events.VarBase.prototype.toJson=function(){var a=Blockly.Events.VarBase.superClass_.toJson.call(this);this.varId&&(a.varId=this.varId);return a};Blockly.Events.VarBase.prototype.fromJson=function(a){Blockly.Events.VarBase.superClass_.toJson.call(this);this.varId=a.varId};Blockly.Events.VarDelete=function(a){a&&(Blockly.Events.VarDelete.superClass_.constructor.call(this,a),this.varType=a.type,this.varName=a.name)};goog.inherits(Blockly.Events.VarDelete,Blockly.Events.VarBase);Blockly.Events.VarDelete.prototype.type=Blockly.Events.VAR_DELETE;Blockly.Events.VarDelete.prototype.toJson=function(){var a=Blockly.Events.VarDelete.superClass_.toJson.call(this);a.varType=this.varType;a.varName=this.varName;return a};
+Blockly.Events.VarDelete.prototype.fromJson=function(a){Blockly.Events.VarDelete.superClass_.fromJson.call(this,a);this.varType=a.varType;this.varName=a.varName};Blockly.Events.VarDelete.prototype.run=function(a){var b=this.getEventWorkspace_();a?b.deleteVariableById(this.varId):b.createVariable(this.varName,this.varType,this.varId)};Blockly.Events.VarRename=function(a,b){a&&(Blockly.Events.VarRename.superClass_.constructor.call(this,a),this.oldName=a.name,this.newName=b)};goog.inherits(Blockly.Events.VarRename,Blockly.Events.VarBase);Blockly.Events.VarRename.prototype.type=Blockly.Events.VAR_RENAME;Blockly.Events.VarRename.prototype.toJson=function(){var a=Blockly.Events.VarRename.superClass_.toJson.call(this);a.oldName=this.oldName;a.newName=this.newName;return a};
 Blockly.Events.VarRename.prototype.fromJson=function(a){Blockly.Events.VarRename.superClass_.fromJson.call(this,a);this.oldName=a.oldName;this.newName=a.newName};Blockly.Events.VarRename.prototype.run=function(a){var b=this.getEventWorkspace_();a?b.renameVariableById(this.varId,this.newName):b.renameVariableById(this.varId,this.oldName)};
 Blockly.VariableMap=function(a){this.variableMap_={};this.workspace=a};Blockly.VariableMap.prototype.clear=function(){this.variableMap_=Object(null)};Blockly.VariableMap.prototype.renameVariable=function(a,b){var c=this.getVariable(b,a.type),d=this.workspace.getAllBlocks();Blockly.Events.setGroup(!0);try{c&&c.getId()!=a.getId()?this.renameVariableWithConflict_(a,b,c,d):this.renameVariableAndUses_(a,b,d)}finally{Blockly.Events.setGroup(!1)}};
 Blockly.VariableMap.prototype.renameVariableById=function(a,b){var c=this.getVariableById(a);if(!c)throw Error("Tried to rename a variable that didn't exist. ID: "+a);this.renameVariable(c,b)};Blockly.VariableMap.prototype.renameVariableAndUses_=function(a,b,c){Blockly.Events.fire(new Blockly.Events.VarRename(a,b));a.name=b;for(b=0;b<c.length;b++)c[b].updateVarName(a)};
@@ -973,11 +956,11 @@ this.layoutBubble_(),this.positionBubble_(),this.renderArrow_());this.resizeCall
 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.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.BlockBase=function(a){Blockly.Events.BlockBase.superClass_.constructor.call(this);this.blockId=a.id;this.workspaceId=a.workspace.id};goog.inherits(Blockly.Events.BlockBase,Blockly.Events.Abstract);Blockly.Events.BlockBase.prototype.toJson=function(){var a=Blockly.Events.BlockBase.superClass_.toJson.call(this);this.blockId&&(a.blockId=this.blockId);return a};Blockly.Events.BlockBase.prototype.fromJson=function(a){Blockly.Events.BlockBase.superClass_.toJson.call(this);this.blockId=a.blockId};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.BlockBase);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};
 Blockly.Events.Change.prototype.run=function(a){var b=this.getEventWorkspace_().getBlockById(this.blockId);if(b)switch(b.mutator&&b.mutator.setVisible(!1),a=a?this.newValue:this.oldValue,this.element){case "field":(b=b.getField(this.name))?(b.callValidator(a),b.setValue(a)):console.warn("Can't set non-existent field: "+this.name);break;case "comment":b.setCommentText(a||null);break;case "collapsed":b.setCollapsed(a);break;case "disabled":b.setDisabled(a);break;case "inline":b.setInputsInline(a);break;
-case "mutation":var c="";b.mutationToDom&&(c=(c=b.mutationToDom())&&Blockly.Xml.domToText(c));if(b.domToMutation){a=a||"<mutation></mutation>";var d=Blockly.Xml.textToDom("<xml>"+a+"</xml>");b.domToMutation(d.firstChild)}Blockly.Events.fire(new Blockly.Events.Change(b,"mutation",null,c,a));break;default:console.warn("Unknown change type: "+this.element)}else console.warn("Can't change non-existent block: "+this.blockId)};Blockly.Events.Ui=function(a,b,c,d){Blockly.Events.Ui.superClass_.constructor.call(this,a);this.element=b;this.oldValue=c;this.newValue=d;this.recordUndo=!1};goog.inherits(Blockly.Events.Ui,Blockly.Events.Abstract);Blockly.Events.Ui.prototype.type=Blockly.Events.UI;Blockly.Events.Ui.prototype.toJson=function(){var a=Blockly.Events.Ui.superClass_.toJson.call(this);a.element=this.element;void 0!==this.newValue&&(a.newValue=this.newValue);return a};
-Blockly.Events.Ui.prototype.fromJson=function(a){Blockly.Events.Ui.superClass_.fromJson.call(this,a);this.element=a.element;this.newValue=a.newValue};Blockly.Icon=function(a){this.block_=a};Blockly.Icon.prototype.collapseHidden=!0;Blockly.Icon.prototype.SIZE=17;Blockly.Icon.prototype.bubble_=null;Blockly.Icon.prototype.iconXY_=null;
+case "mutation":var c="";b.mutationToDom&&(c=(c=b.mutationToDom())&&Blockly.Xml.domToText(c));if(b.domToMutation){a=a||"<mutation></mutation>";var d=Blockly.Xml.textToDom("<xml>"+a+"</xml>");b.domToMutation(d.firstChild)}Blockly.Events.fire(new Blockly.Events.Change(b,"mutation",null,c,a));break;default:console.warn("Unknown change type: "+this.element)}else console.warn("Can't change non-existent block: "+this.blockId)};Blockly.Events.Ui=function(a,b,c,d){a&&(Blockly.Events.Ui.superClass_.constructor.call(this),this.blockId=a.id,this.workspaceId=a.workspace.id,this.element=b,this.oldValue=c,this.newValue=d,this.recordUndo=!1)};goog.inherits(Blockly.Events.Ui,Blockly.Events.Abstract);Blockly.Events.Ui.prototype.type=Blockly.Events.UI;
+Blockly.Events.Ui.prototype.toJson=function(){var a=Blockly.Events.Ui.superClass_.toJson.call(this);a.element=this.element;void 0!==this.newValue&&(a.newValue=this.newValue);this.blockId&&(a.blockId=this.blockId);return a};Blockly.Events.Ui.prototype.fromJson=function(a){Blockly.Events.Ui.superClass_.fromJson.call(this,a);this.element=a.element;this.newValue=a.newValue;this.blockId=a.blockId};Blockly.Icon=function(a){this.block_=a};Blockly.Icon.prototype.collapseHidden=!0;Blockly.Icon.prototype.SIZE=17;Blockly.Icon.prototype.bubble_=null;Blockly.Icon.prototype.iconXY_=null;
 Blockly.Icon.prototype.createIcon=function(){this.iconGroup_||(this.iconGroup_=Blockly.utils.createSvgElement("g",{"class":"blocklyIconGroup"},null),this.block_.isInFlyout&&Blockly.utils.addClass(this.iconGroup_,"blocklyIconGroupReadonly"),this.drawIcon_(this.iconGroup_),this.block_.getSvgRoot().appendChild(this.iconGroup_),Blockly.bindEventWithChecks_(this.iconGroup_,"mouseup",this,this.iconClick_),this.updateEditable())};
 Blockly.Icon.prototype.dispose=function(){goog.dom.removeNode(this.iconGroup_);this.iconGroup_=null;this.setVisible(!1);this.block_=null};Blockly.Icon.prototype.updateEditable=function(){};Blockly.Icon.prototype.isVisible=function(){return!!this.bubble_};Blockly.Icon.prototype.iconClick_=function(a){this.block_.workspace.isDragging()||this.block_.isInFlyout||Blockly.utils.isRightButton(a)||this.setVisible(!this.isVisible())};Blockly.Icon.prototype.updateColour=function(){this.isVisible()&&this.bubble_.setColour(this.block_.getColour())};
 Blockly.Icon.prototype.renderIcon=function(a){if(this.collapseHidden&&this.block_.isCollapsed())return this.iconGroup_.setAttribute("display","none"),a;this.iconGroup_.setAttribute("display","block");var b=this.SIZE;this.block_.RTL&&(a-=b);this.iconGroup_.setAttribute("transform","translate("+a+",5)");this.computeIconLocation();return a=this.block_.RTL?a-Blockly.BlockSvg.SEP_SPACE_X:a+(b+Blockly.BlockSvg.SEP_SPACE_X)};
@@ -990,7 +973,7 @@ Blockly.Comment.prototype.updateEditable=function(){this.isVisible()&&(this.setV
 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.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.BlockBase);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};
 Blockly.Events.Move.prototype.fromJson=function(a){Blockly.Events.Move.superClass_.fromJson.call(this,a);this.newParentId=a.newParentId;this.newInputName=a.newInputName;a.newCoordinate&&(a=a.newCoordinate.split(","),this.newCoordinate=new goog.math.Coordinate(parseFloat(a[0]),parseFloat(a[1])))};Blockly.Events.Move.prototype.recordNew=function(){var a=this.currentLocation_();this.newParentId=a.parentId;this.newInputName=a.inputName;this.newCoordinate=a.coordinate};
 Blockly.Events.Move.prototype.currentLocation_=function(){var a=Blockly.Workspace.getById(this.workspaceId).getBlockById(this.blockId),b={},c=a.getParent();if(c){if(b.parentId=c.id,a=c.getInputWithBlock(a))b.inputName=a.name}else b.coordinate=a.getRelativeToSurfaceXY();return b};Blockly.Events.Move.prototype.isNull=function(){return this.oldParentId==this.newParentId&&this.oldInputName==this.newInputName&&goog.math.Coordinate.equals(this.oldCoordinate,this.newCoordinate)};
@@ -1014,9 +997,9 @@ Blockly.Connection.prototype.respawnShadow_=function(){var a=this.getSourceBlock
 Blockly.Connection.prototype.checkType_=function(a){if(!this.check_||!a.check_)return!0;for(var b=0;b<this.check_.length;b++)if(-1!=a.check_.indexOf(this.check_[b]))return!0;return!1};Blockly.Connection.prototype.onCheckChanged_=function(){this.isConnected()&&!this.checkType_(this.targetConnection)&&(this.isSuperior()?this.targetBlock():this.sourceBlock_).unplug()};
 Blockly.Connection.prototype.setCheck=function(a){a?(goog.isArray(a)||(a=[a]),this.check_=a,this.onCheckChanged_()):this.check_=null;return this};Blockly.Connection.prototype.setShadowDom=function(a){this.shadowDom_=a};Blockly.Connection.prototype.getShadowDom=function(){return this.shadowDom_};Blockly.Connection.prototype.neighbours_=function(){return[]};
 Blockly.Connection.prototype.toString=function(){var a=this.sourceBlock_;if(a)if(a.outputConnection==this)var b="Output Connection of ";else if(a.previousConnection==this)b="Previous Connection of ";else if(a.nextConnection==this)b="Next Connection of ";else if(b=goog.array.find(a.inputList,function(a){return a.connection==this},this))b='Input "'+b.name+'" connection on ';else return console.warn("Connection not actually connected to sourceBlock_"),"Orphan Connection";else return"Orphan Connection";
-return b+a.toDevString()};Blockly.Events.Create=function(a){a&&(Blockly.Events.Create.superClass_.constructor.call(this,a),this.xml=a.workspace.rendered?Blockly.Xml.blockToDomWithXY(a):Blockly.Xml.blockToDom(a),this.ids=Blockly.Events.getDescendantIds_(a))};goog.inherits(Blockly.Events.Create,Blockly.Events.Abstract);Blockly.Events.BlockCreate=Blockly.Events.Create;Blockly.Events.Create.prototype.type=Blockly.Events.CREATE;
+return b+a.toDevString()};Blockly.Events.Create=function(a){a&&(Blockly.Events.Create.superClass_.constructor.call(this,a),this.xml=a.workspace.rendered?Blockly.Xml.blockToDomWithXY(a):Blockly.Xml.blockToDom(a),this.ids=Blockly.Events.getDescendantIds_(a))};goog.inherits(Blockly.Events.Create,Blockly.Events.BlockBase);Blockly.Events.BlockCreate=Blockly.Events.Create;Blockly.Events.Create.prototype.type=Blockly.Events.CREATE;
 Blockly.Events.Create.prototype.toJson=function(){var a=Blockly.Events.Create.superClass_.toJson.call(this);a.xml=Blockly.Xml.domToText(this.xml);a.ids=this.ids;return a};Blockly.Events.Create.prototype.fromJson=function(a){Blockly.Events.Create.superClass_.fromJson.call(this,a);this.xml=Blockly.Xml.textToDom("<xml>"+a.xml+"</xml>").firstChild;this.ids=a.ids};
-Blockly.Events.Create.prototype.run=function(a){var b=this.getEventWorkspace_();if(a)a=goog.dom.createDom("xml"),a.appendChild(this.xml),Blockly.Xml.domToWorkspace(a,b);else{a=0;for(var c;c=this.ids[a];a++){var d=b.getBlockById(c);d?d.dispose(!1,!1):c==this.blockId&&console.warn("Can't uncreate non-existent block: "+c)}}};Blockly.Events.Delete=function(a){if(a){if(a.getParent())throw"Connected blocks cannot be deleted.";Blockly.Events.Delete.superClass_.constructor.call(this,a);this.oldXml=a.workspace.rendered?Blockly.Xml.blockToDomWithXY(a):Blockly.Xml.blockToDom(a);this.ids=Blockly.Events.getDescendantIds_(a)}};goog.inherits(Blockly.Events.Delete,Blockly.Events.Abstract);Blockly.Events.BlockDelete=Blockly.Events.Delete;Blockly.Events.Delete.prototype.type=Blockly.Events.DELETE;
+Blockly.Events.Create.prototype.run=function(a){var b=this.getEventWorkspace_();if(a)a=goog.dom.createDom("xml"),a.appendChild(this.xml),Blockly.Xml.domToWorkspace(a,b);else{a=0;for(var c;c=this.ids[a];a++){var d=b.getBlockById(c);d?d.dispose(!1,!1):c==this.blockId&&console.warn("Can't uncreate non-existent block: "+c)}}};Blockly.Events.Delete=function(a){if(a){if(a.getParent())throw"Connected blocks cannot be deleted.";Blockly.Events.Delete.superClass_.constructor.call(this,a);this.oldXml=a.workspace.rendered?Blockly.Xml.blockToDomWithXY(a):Blockly.Xml.blockToDom(a);this.ids=Blockly.Events.getDescendantIds_(a)}};goog.inherits(Blockly.Events.Delete,Blockly.Events.BlockBase);Blockly.Events.BlockDelete=Blockly.Events.Delete;Blockly.Events.Delete.prototype.type=Blockly.Events.DELETE;
 Blockly.Events.Delete.prototype.toJson=function(){var a=Blockly.Events.Delete.superClass_.toJson.call(this);a.ids=this.ids;return a};Blockly.Events.Delete.prototype.fromJson=function(a){Blockly.Events.Delete.superClass_.fromJson.call(this,a);this.ids=a.ids};
 Blockly.Events.Delete.prototype.run=function(a){var b=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};
@@ -1025,13 +1008,7 @@ Blockly.ConnectionDB.prototype.getNeighbours=function(a,b){function c(a){var c=e
 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;
-Blockly.TOOLBOX_AT_TOP=0;Blockly.TOOLBOX_AT_BOTTOM=1;Blockly.TOOLBOX_AT_LEFT=2;Blockly.TOOLBOX_AT_RIGHT=3;Blockly.DELETE_AREA_NONE=null;Blockly.DELETE_AREA_TRASH=1;Blockly.DELETE_AREA_TOOLBOX=2;Blockly.VARIABLE_CATEGORY_NAME="VARIABLE";Blockly.VARIABLE_DYNAMIC_CATEGORY_NAME="VARIABLE_DYNAMIC";Blockly.PROCEDURE_CATEGORY_NAME="PROCEDURE";Blockly.RENAME_VARIABLE_ID="RENAME_VARIABLE_ID";Blockly.DELETE_VARIABLE_ID="DELETE_VARIABLE_ID";Blockly.BlockAnimations={};Blockly.BlockAnimations.disconnectPid_=0;Blockly.BlockAnimations.disconnectGroup_=null;Blockly.BlockAnimations.disposeUiEffect=function(a){var b=a.workspace,c=a.getSvgRoot();b.getAudioManager().play("delete");a=b.getSvgXY(c);c=c.cloneNode(!0);c.translateX_=a.x;c.translateY_=a.y;c.setAttribute("transform","translate("+a.x+","+a.y+")");b.getParentSvg().appendChild(c);c.bBox_=c.getBBox();Blockly.BlockAnimations.disposeUiStep_(c,b.RTL,new Date,b.scale)};
-Blockly.BlockAnimations.disposeUiStep_=function(a,b,c,d){var e=(new Date-c)/150;1<e?goog.dom.removeNode(a):(a.setAttribute("transform","translate("+(a.translateX_+(b?-1:1)*a.bBox_.width*d/2*e)+","+(a.translateY_+a.bBox_.height*d*e)+") scale("+(1-e)*d+")"),setTimeout(Blockly.BlockAnimations.disposeUiStep_,10,a,b,c,d))};
-Blockly.BlockAnimations.connectionUiEffect=function(a){var b=a.workspace,c=b.scale;b.getAudioManager().play("click");if(!(1>c)){var d=b.getSvgXY(a.getSvgRoot());a.outputConnection?(d.x+=(a.RTL?3:-3)*c,d.y+=13*c):a.previousConnection&&(d.x+=(a.RTL?-23:23)*c,d.y+=3*c);a=Blockly.utils.createSvgElement("circle",{cx:d.x,cy:d.y,r:0,fill:"none",stroke:"#888","stroke-width":10},b.getParentSvg());Blockly.BlockAnimations.connectionUiStep_(a,new Date,c)}};
-Blockly.BlockAnimations.connectionUiStep_=function(a,b,c){var d=(new Date-b)/150;1<d?goog.dom.removeNode(a):(a.setAttribute("r",25*d*c),a.style.opacity=1-d,Blockly.BlockAnimations.disconnectPid_=setTimeout(Blockly.BlockAnimations.connectionUiStep_,10,a,b,c))};
-Blockly.BlockAnimations.disconnectUiEffect=function(a){a.workspace.getAudioManager().play("disconnect");if(!(1>a.workspace.scale)){var b=a.getHeightWidth().height;b=Math.atan(10/b)/Math.PI*180;a.RTL||(b*=-1);Blockly.BlockAnimations.disconnectUiStep_(a.getSvgRoot(),b,new Date)}};
-Blockly.BlockAnimations.disconnectUiStep_=function(a,b,c){var d=(new Date-c)/200;1<d?a.skew_="":(a.skew_="skewX("+Math.round(Math.sin(d*Math.PI*3)*(1-d)*b)+")",Blockly.BlockAnimations.disconnectGroup_=a,Blockly.BlockAnimations.disconnectPid_=setTimeout(Blockly.BlockAnimations.disconnectUiStep_,10,a,b,c));a.setAttribute("transform",a.translate_+a.skew_)};
-Blockly.BlockAnimations.disconnectUiStop=function(){if(Blockly.BlockAnimations.disconnectGroup_){clearTimeout(Blockly.BlockAnimations.disconnectPid_);var a=Blockly.BlockAnimations.disconnectGroup_;a.skew_="";a.setAttribute("transform",a.translate_);Blockly.BlockAnimations.disconnectGroup_=null}};Blockly.RenderedConnection=function(a,b){Blockly.RenderedConnection.superClass_.constructor.call(this,a,b);this.offsetInBlock_=new goog.math.Coordinate(0,0)};goog.inherits(Blockly.RenderedConnection,Blockly.Connection);Blockly.RenderedConnection.prototype.distanceFrom=function(a){var b=this.x_-a.x_;a=this.y_-a.y_;return Math.sqrt(b*b+a*a)};
+Blockly.TOOLBOX_AT_TOP=0;Blockly.TOOLBOX_AT_BOTTOM=1;Blockly.TOOLBOX_AT_LEFT=2;Blockly.TOOLBOX_AT_RIGHT=3;Blockly.DELETE_AREA_NONE=null;Blockly.DELETE_AREA_TRASH=1;Blockly.DELETE_AREA_TOOLBOX=2;Blockly.VARIABLE_CATEGORY_NAME="VARIABLE";Blockly.VARIABLE_DYNAMIC_CATEGORY_NAME="VARIABLE_DYNAMIC";Blockly.PROCEDURE_CATEGORY_NAME="PROCEDURE";Blockly.RENAME_VARIABLE_ID="RENAME_VARIABLE_ID";Blockly.DELETE_VARIABLE_ID="DELETE_VARIABLE_ID";Blockly.RenderedConnection=function(a,b){Blockly.RenderedConnection.superClass_.constructor.call(this,a,b);this.offsetInBlock_=new goog.math.Coordinate(0,0)};goog.inherits(Blockly.RenderedConnection,Blockly.Connection);Blockly.RenderedConnection.prototype.distanceFrom=function(a){var b=this.x_-a.x_;a=this.y_-a.y_;return Math.sqrt(b*b+a*a)};
 Blockly.RenderedConnection.prototype.bumpAwayFrom_=function(a){if(!this.sourceBlock_.workspace.isDragging()){var b=this.sourceBlock_.getRootBlock();if(!b.isInFlyout){var c=!1;if(!b.isMovable()){b=a.getSourceBlock().getRootBlock();if(!b.isMovable())return;a=this;c=!0}var d=Blockly.selected==b;d||b.addSelect();var e=a.x_+Blockly.SNAP_RADIUS-this.x_;a=a.y_+Blockly.SNAP_RADIUS-this.y_;c&&(a=-a);b.RTL&&(e=-e);b.moveBy(e,a);d||b.removeSelect()}}};
 Blockly.RenderedConnection.prototype.moveTo=function(a,b){this.inDB_&&this.db_.removeConnection_(this);this.x_=a;this.y_=b;this.hidden_||this.db_.addConnection(this)};Blockly.RenderedConnection.prototype.moveBy=function(a,b){this.moveTo(this.x_+a,this.y_+b)};Blockly.RenderedConnection.prototype.moveToOffset=function(a){this.moveTo(a.x+this.offsetInBlock_.x,a.y+this.offsetInBlock_.y)};
 Blockly.RenderedConnection.prototype.setOffsetInBlock=function(a,b){this.offsetInBlock_.x=a;this.offsetInBlock_.y=b};Blockly.RenderedConnection.prototype.tighten_=function(){var a=this.targetConnection.x_-this.x_,b=this.targetConnection.y_-this.y_;if(0!=a||0!=b){var c=this.targetBlock(),d=c.getSvgRoot();if(!d)throw"block is not rendered.";d=Blockly.utils.getRelativeXY(d);c.getSvgRoot().setAttribute("transform","translate("+(d.x-a)+","+(d.y-b)+")");c.moveConnections_(-a,-b)}};
@@ -1045,14 +1022,14 @@ Blockly.RenderedConnection.prototype.disconnectInternal_=function(a,b){Blockly.R
 Blockly.RenderedConnection.prototype.respawnShadow_=function(){var a=this.getSourceBlock(),b=this.getShadowDom();if(a.workspace&&b&&Blockly.Events.recordUndo){Blockly.RenderedConnection.superClass_.respawnShadow_.call(this);b=this.targetBlock();if(!b)throw"Couldn't respawn the shadow block that should exist here.";b.initSvg();b.render(!1);a.rendered&&a.render()}};Blockly.RenderedConnection.prototype.neighbours_=function(a){return this.dbOpposite_.getNeighbours(this,a)};
 Blockly.RenderedConnection.prototype.connect_=function(a){Blockly.RenderedConnection.superClass_.connect_.call(this,a);var b=this.getSourceBlock();a=a.getSourceBlock();b.rendered&&b.updateDisabled();a.rendered&&a.updateDisabled();b.rendered&&a.rendered&&(this.type==Blockly.NEXT_STATEMENT||this.type==Blockly.PREVIOUS_STATEMENT?a.render():b.render())};
 Blockly.RenderedConnection.prototype.onCheckChanged_=function(){this.isConnected()&&!this.checkType_(this.targetConnection)&&((this.isSuperior()?this.targetBlock():this.sourceBlock_).unplug(),this.sourceBlock_.bumpNeighbours_())};Blockly.DraggedConnectionManager=function(a){this.topBlock_=Blockly.selected=a;this.workspace_=a.workspace;this.availableConnections_=this.initAvailableConnections_();this.localConnection_=this.closestConnection_=null;this.radiusConnection_=0;this.wouldDeleteBlock_=!1};Blockly.DraggedConnectionManager.prototype.dispose=function(){this.workspace_=this.topBlock_=null;this.availableConnections_.length=0;this.localConnection_=this.closestConnection_=null};
-Blockly.DraggedConnectionManager.prototype.wouldDeleteBlock=function(){return this.wouldDeleteBlock_};Blockly.DraggedConnectionManager.prototype.applyConnections=function(){if(this.closestConnection_){this.localConnection_.connect(this.closestConnection_);if(this.topBlock_.rendered){var a=this.localConnection_.isSuperior()?this.closestConnection_:this.localConnection_;Blockly.BlockAnimations.connectionUiEffect(a.getSourceBlock());this.topBlock_.getRootBlock().bringToFront()}this.removeHighlighting_()}};
+Blockly.DraggedConnectionManager.prototype.wouldDeleteBlock=function(){return this.wouldDeleteBlock_};Blockly.DraggedConnectionManager.prototype.applyConnections=function(){this.closestConnection_&&(this.localConnection_.connect(this.closestConnection_),this.topBlock_.rendered&&((this.localConnection_.isSuperior()?this.closestConnection_:this.localConnection_).getSourceBlock().connectionUiEffect(),this.topBlock_.getRootBlock().bringToFront()),this.removeHighlighting_())};
 Blockly.DraggedConnectionManager.prototype.update=function(a,b){var c=this.closestConnection_,d=this.updateClosest_(a);d&&c&&c.unhighlight();c=!!this.closestConnection_&&b!=Blockly.DELETE_AREA_TOOLBOX;var e=!!b&&!this.topBlock_.getParent()&&this.topBlock_.isDeletable();this.wouldDeleteBlock_=e&&!c;e&&this.closestConnection_&&(this.closestConnection_.unhighlight(),this.closestConnection_=null);!this.wouldDeleteBlock_&&d&&this.closestConnection_&&this.addHighlighting_()};
 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,b){Blockly.Events.getGroup()||Blockly.Events.setGroup(!0);this.workspace_.setResizesEnabled(!1);Blockly.BlockAnimations.disconnectUiStop();if(this.draggingBlock_.getParent()||b&&this.draggingBlock_.nextConnection&&this.draggingBlock_.nextConnection.targetBlock()){this.draggingBlock_.unplug(b);var c=this.pixelsToWorkspaceUnits_(a);c=goog.math.Coordinate.sum(this.startXY_,c);this.draggingBlock_.translate(c.x,c.y);Blockly.BlockAnimations.disconnectUiEffect(this.draggingBlock_)}this.draggingBlock_.setDragging(!0);
-this.draggingBlock_.moveToDragSurface_();if(c=this.workspace_.getToolbox()){var d=this.draggingBlock_.isDeletable()?"blocklyToolboxDelete":"blocklyToolboxGrab";c.addStyle(d)}};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.BlockAnimations.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());
+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);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))};
@@ -1069,19 +1046,18 @@ setTimeout(Blockly.Tooltip.show_,Blockly.Tooltip.HOVER_MS))};Blockly.Tooltip.hid
 Blockly.Tooltip.show_=function(){if(!Blockly.Tooltip.blocked_&&(Blockly.Tooltip.poisonedElement_=Blockly.Tooltip.element_,Blockly.Tooltip.DIV)){goog.dom.removeChildren(Blockly.Tooltip.DIV);for(var a=Blockly.Tooltip.element_.tooltip;goog.isFunction(a);)a=a();a=Blockly.utils.wrap(a,Blockly.Tooltip.LIMIT);a=a.split("\n");for(var b=0;b<a.length;b++){var c=document.createElement("div");c.appendChild(document.createTextNode(a[b]));Blockly.Tooltip.DIV.appendChild(c)}a=Blockly.Tooltip.element_.RTL;b=goog.dom.getViewportSize();
 Blockly.Tooltip.DIV.style.direction=a?"rtl":"ltr";Blockly.Tooltip.DIV.style.display="block";Blockly.Tooltip.visible=!0;c=Blockly.Tooltip.lastX_;c=a?c-(Blockly.Tooltip.OFFSET_X+Blockly.Tooltip.DIV.offsetWidth):c+Blockly.Tooltip.OFFSET_X;var d=Blockly.Tooltip.lastY_+Blockly.Tooltip.OFFSET_Y;d+Blockly.Tooltip.DIV.offsetHeight>b.height+window.scrollY&&(d-=Blockly.Tooltip.DIV.offsetHeight+2*Blockly.Tooltip.OFFSET_Y);a?c=Math.max(Blockly.Tooltip.MARGINS-window.scrollX,c):c+Blockly.Tooltip.DIV.offsetWidth>
 b.width+window.scrollX-2*Blockly.Tooltip.MARGINS&&(c=b.width-Blockly.Tooltip.DIV.offsetWidth-2*Blockly.Tooltip.MARGINS);Blockly.Tooltip.DIV.style.top=d+"px";Blockly.Tooltip.DIV.style.left=c+"px"}};Blockly.Gesture=function(a,b){this.mouseDownXY_=null;this.currentDragDeltaXY_=0;this.startWorkspace_=this.targetBlock_=this.startBlock_=this.startField_=this.startBubble_=null;this.creatorWorkspace_=b;this.isDraggingBubble_=this.isDraggingBlock_=this.isDraggingWorkspace_=this.hasExceededDragRadius_=!1;this.mostRecentEvent_=a;this.flyout_=this.workspaceDragger_=this.blockDragger_=this.bubbleDragger_=this.onUpWrapper_=this.onMoveWrapper_=null;this.isEnding_=this.hasStarted_=this.calledUpdateIsDragging_=
-!1;this.healStack_=!Blockly.DRAG_STACK};
-Blockly.Gesture.prototype.dispose=function(){Blockly.Touch.clearTouchIdentifier();Blockly.Tooltip.unblock();this.creatorWorkspace_.clearGesture();this.onMoveWrapper_&&Blockly.unbindEvent_(this.onMoveWrapper_);this.onUpWrapper_&&Blockly.unbindEvent_(this.onUpWrapper_);this.flyout_=this.startWorkspace_=this.targetBlock_=this.startBlock_=this.startField_=null;this.blockDragger_&&(this.blockDragger_.dispose(),this.blockDragger_=null);this.workspaceDragger_&&(this.workspaceDragger_.dispose(),this.workspaceDragger_=
-null);this.bubbleDragger_&&(this.bubbleDragger_.dispose(),this.bubbleDragger_=null)};Blockly.Gesture.prototype.updateFromEvent_=function(a){var b=new goog.math.Coordinate(a.clientX,a.clientY);this.updateDragDelta_(b)&&(this.updateIsDragging_(),Blockly.longStop_());this.mostRecentEvent_=a};
+!1};
+Blockly.Gesture.prototype.dispose=function(){Blockly.Touch.clearTouchIdentifier();Blockly.Tooltip.unblock();this.creatorWorkspace_.clearGesture();this.onMoveWrapper_&&Blockly.unbindEvent_(this.onMoveWrapper_);this.onUpWrapper_&&Blockly.unbindEvent_(this.onUpWrapper_);this.flyout_=this.startWorkspace_=this.targetBlock_=this.startBlock_=this.startField_=null;this.blockDragger_&&(this.blockDragger_.dispose(),this.blockDragger_=null);this.workspaceDragger_&&(this.workspaceDragger_.dispose(),this.workspaceDragger_=null);
+this.bubbleDragger_&&(this.bubbleDragger_.dispose(),this.bubbleDragger_=null)};Blockly.Gesture.prototype.updateFromEvent_=function(a){var b=new goog.math.Coordinate(a.clientX,a.clientY);this.updateDragDelta_(b)&&(this.updateIsDragging_(),Blockly.longStop_());this.mostRecentEvent_=a};
 Blockly.Gesture.prototype.updateDragDelta_=function(a){this.currentDragDeltaXY_=goog.math.Coordinate.difference(a,this.mouseDownXY_);return this.hasExceededDragRadius_?!1:this.hasExceededDragRadius_=goog.math.Coordinate.magnitude(this.currentDragDeltaXY_)>(this.flyout_?Blockly.FLYOUT_DRAG_RADIUS:Blockly.DRAG_RADIUS)};
 Blockly.Gesture.prototype.updateIsDraggingFromFlyout_=function(){return this.targetBlock_.disabled?!1:!this.flyout_.isScrollable()||this.flyout_.isDragTowardWorkspace(this.currentDragDeltaXY_)?(this.startWorkspace_=this.flyout_.targetWorkspace_,this.startWorkspace_.updateScreenCalculationsIfScrolled(),Blockly.Events.getGroup()||Blockly.Events.setGroup(!0),this.startBlock_=null,this.targetBlock_=this.flyout_.createBlock(this.targetBlock_),this.targetBlock_.select(),!0):!1};
 Blockly.Gesture.prototype.updateIsDraggingBubble_=function(){if(!this.startBubble_)return!1;this.isDraggingBubble_=!0;this.startDraggingBubble_();return!0};Blockly.Gesture.prototype.updateIsDraggingBlock_=function(){if(!this.targetBlock_)return!1;this.flyout_?this.isDraggingBlock_=this.updateIsDraggingFromFlyout_():this.targetBlock_.isMovable()&&(this.isDraggingBlock_=!0);return this.isDraggingBlock_?(this.startDraggingBlock_(),!0):!1};
 Blockly.Gesture.prototype.updateIsDraggingWorkspace_=function(){if(this.flyout_?this.flyout_.isScrollable():this.startWorkspace_&&this.startWorkspace_.isDraggable())this.workspaceDragger_=this.flyout_?new Blockly.FlyoutDragger(this.flyout_):new Blockly.WorkspaceDragger(this.startWorkspace_),this.isDraggingWorkspace_=!0,this.workspaceDragger_.startDrag()};
 Blockly.Gesture.prototype.updateIsDragging_=function(){goog.asserts.assert(!this.calledUpdateIsDragging_,"updateIsDragging_ should only be called once per gesture.");this.calledUpdateIsDragging_=!0;this.updateIsDraggingBubble_()||this.updateIsDraggingBlock_()||this.updateIsDraggingWorkspace_()};
-Blockly.Gesture.prototype.startDraggingBlock_=function(){this.blockDragger_=new Blockly.BlockDragger(this.targetBlock_,this.startWorkspace_);this.blockDragger_.startBlockDrag(this.currentDragDeltaXY_,this.healStack_);this.blockDragger_.dragBlock(this.mostRecentEvent_,this.currentDragDeltaXY_)};
+Blockly.Gesture.prototype.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.BlockAnimations.disconnectUiStop(),this.startWorkspace_.updateScreenCalculationsIfScrolled(),this.startWorkspace_.isMutator&&this.startWorkspace_.resize(),this.startWorkspace_.markFocused(),this.mostRecentEvent_=a,Blockly.hideChaff(!!this.flyout_),Blockly.Tooltip.block(),this.targetBlock_&&this.targetBlock_.select(),Blockly.utils.isRightButton(a)?this.handleRightClick(a):((goog.string.caseInsensitiveEquals(a.type,
-"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.healStack_=a.altKey||a.ctrlKey||a.metaKey,this.bindMouseEvents(a)))};
-Blockly.Gesture.prototype.bindMouseEvents=function(a){this.onMoveWrapper_=Blockly.bindEventWithChecks_(document,"mousemove",null,this.handleMove.bind(this));this.onUpWrapper_=Blockly.bindEventWithChecks_(document,"mouseup",null,this.handleUp.bind(this));a.preventDefault();a.stopPropagation()};
+Blockly.Gesture.prototype.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")&&"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())};
@@ -1116,7 +1092,7 @@ 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)):Blockly.utils.createSvgElement("line",{},a);return a};Blockly.Options=function(a){var b=!!a.readOnly;if(b)var c=null,d=!1,e=!1,f=!1,g=!1,h=!1,k=!1;else c=Blockly.Options.parseToolboxTree(a.toolbox),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==
+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};
@@ -1145,14 +1121,7 @@ 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.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.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.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_,
@@ -1162,24 +1131,23 @@ Blockly.Trashcan.prototype.position=function(){var a=this.workspace_.getMetrics(
 a.absoluteTop-(this.BODY_HEIGHT_+this.LID_HEIGHT_)-this.bottom_,a.toolboxPosition==Blockly.TOOLBOX_AT_BOTTOM&&(this.top_-=a.flyoutHeight),this.svgGroup_.setAttribute("transform","translate("+this.left_+","+this.top_+")"))};
 Blockly.Trashcan.prototype.getClientRect=function(){if(!this.svgGroup_)return null;var a=this.svgGroup_.getBoundingClientRect();return new goog.math.Rect(a.left+this.SPRITE_LEFT_-this.MARGIN_HOTSPOT_,a.top+this.SPRITE_TOP_-this.MARGIN_HOTSPOT_,this.WIDTH_+2*this.MARGIN_HOTSPOT_,this.LID_HEIGHT_+this.BODY_HEIGHT_+2*this.MARGIN_HOTSPOT_)};Blockly.Trashcan.prototype.setOpen_=function(a){this.isOpen!=a&&(goog.Timer.clear(this.lidTask_),this.isOpen=a,this.animateLid_())};
 Blockly.Trashcan.prototype.animateLid_=function(){this.lidOpen_+=this.isOpen?.2:-.2;this.lidOpen_=goog.math.clamp(this.lidOpen_,0,1);var a=45*this.lidOpen_;this.svgLid_.setAttribute("transform","rotate("+(this.workspace_.RTL?-a:a)+","+(this.workspace_.RTL?4:this.WIDTH_-4)+","+(this.LID_HEIGHT_-2)+")");a=goog.math.lerp(.4,.8,this.lidOpen_);this.svgGroup_.style.opacity=a;0<this.lidOpen_&&1>this.lidOpen_&&(this.lidTask_=goog.Timer.callOnce(this.animateLid_,20,this))};
-Blockly.Trashcan.prototype.close=function(){this.setOpen_(!1)};Blockly.Trashcan.prototype.click=function(){var a=this.workspace_.startScrollX-this.workspace_.scrollX,b=this.workspace_.startScrollY-this.workspace_.scrollY;Math.sqrt(a*a+b*b)>Blockly.DRAG_RADIUS||console.log("TODO: Inspect trash.")};Blockly.Events.VarCreate=function(a){a&&(Blockly.Events.VarCreate.superClass_.constructor.call(this,a),this.varType=a.type,this.varName=a.name)};goog.inherits(Blockly.Events.VarCreate,Blockly.Events.Abstract);Blockly.Events.VarCreate.prototype.type=Blockly.Events.VAR_CREATE;Blockly.Events.VarCreate.prototype.toJson=function(){var a=Blockly.Events.VarCreate.superClass_.toJson.call(this);a.varType=this.varType;a.varName=this.varName;return a};
+Blockly.Trashcan.prototype.close=function(){this.setOpen_(!1)};Blockly.Trashcan.prototype.click=function(){var a=this.workspace_.startScrollX-this.workspace_.scrollX,b=this.workspace_.startScrollY-this.workspace_.scrollY;Math.sqrt(a*a+b*b)>Blockly.DRAG_RADIUS||console.log("TODO: Inspect trash.")};Blockly.Events.VarCreate=function(a){a&&(Blockly.Events.VarCreate.superClass_.constructor.call(this,a),this.varType=a.type,this.varName=a.name)};goog.inherits(Blockly.Events.VarCreate,Blockly.Events.VarBase);Blockly.Events.VarCreate.prototype.type=Blockly.Events.VAR_CREATE;Blockly.Events.VarCreate.prototype.toJson=function(){var a=Blockly.Events.VarCreate.superClass_.toJson.call(this);a.varType=this.varType;a.varName=this.varName;return a};
 Blockly.Events.VarCreate.prototype.fromJson=function(a){Blockly.Events.VarCreate.superClass_.fromJson.call(this,a);this.varType=a.varType;this.varName=a.varName};Blockly.Events.VarCreate.prototype.run=function(a){var b=this.getEventWorkspace_();a?b.createVariable(this.varName,this.varType,this.varId):b.deleteVariableById(this.varId)};Blockly.VariableModel=function(a,b,c,d){this.workspace=a;this.name=b;this.type=c||"";this.id_=d||Blockly.utils.genUid();Blockly.Events.fire(new Blockly.Events.VarCreate(this))};Blockly.VariableModel.prototype.getId=function(){return this.id_};Blockly.VariableModel.compareByName=function(a,b){return goog.string.caseInsensitiveCompare(a.name,b.name)};Blockly.Variables={};Blockly.Variables.NAME_TYPE=Blockly.VARIABLE_CATEGORY_NAME;Blockly.Variables.allUsedVarModels=function(a){var b=a.getAllBlocks();a=Object.create(null);for(var c=0;c<b.length;c++){var d=b[c].getVarModels();if(d)for(var e=0;e<d.length;e++){var f=d[e];f.getId()&&(a[f.getId()]=f)}}b=[];for(var g in a)b.push(a[g]);return b};Blockly.Variables.allUsedVariables=function(){console.warn("Deprecated call to Blockly.Variables.allUsedVariables. Use Blockly.Variables.allUsedVarModels instead.\nIf this is a major issue please file a bug on GitHub.")};
 Blockly.Variables.allDeveloperVariables=function(a){var b=a.getAllBlocks();a={};for(var c=0;c<b.length;c++){var d=b[c];if(d.getDeveloperVars){d=d.getDeveloperVars();for(var e=0;e<d.length;e++)a[d[e]]=d[e]}}b=[];for(var f in a)b.push(a[f]);return b};
 Blockly.Variables.flyoutCategory=function(a){var b=[],c=goog.dom.createDom("button");c.setAttribute("text",Blockly.Msg.NEW_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE");a.registerButtonCallback("CREATE_VARIABLE",function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace())});b.push(c);a=Blockly.Variables.flyoutCategoryBlocks(a);return b=b.concat(a)};
-Blockly.Variables.flyoutCategoryBlocks=function(a){a=a.getVariablesOfType("");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.generateVariableFieldXmlString(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.generateVariableFieldXmlString(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.generateVariableFieldXmlString(d)+"</block></xml>",d=Blockly.Xml.textToDom(d).firstChild,b.push(d))}return b};
+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 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};
-Blockly.Variables.nameUsedWithAnyType_=function(a,b){var c=b.getVariableMap().getAllVariables();a=a.toLowerCase();for(var d=0,e;e=c[d];d++)if(e.name.toLowerCase()==a)return e;return null};Blockly.Variables.generateVariableFieldXmlString=function(a){var b=a.type;""==b&&(b="''");return'<field name="VAR" id="'+a.getId()+'" variabletype="'+goog.string.htmlEscape(b)+'">'+goog.string.htmlEscape(a.name)+"</field>"};
-Blockly.Variables.generateVariableFieldDom=function(a){a=Blockly.Variables.generateVariableFieldXmlString(a);return Blockly.Xml.textToDom("<xml>"+a+"</xml>").firstChild};Blockly.Variables.getOrCreateVariablePackage=function(a,b,c,d){var e=Blockly.Variables.getVariable(a,b,c,d);e||(e=Blockly.Variables.createVariable_(a,b,c,d));return e};
-Blockly.Variables.getVariable=function(a,b,c,d){var e=a.getPotentialVariableMap();if(b){var f=a.getVariableById(b);!f&&e&&(f=e.getVariableById(b))}else if(c){if(void 0==d)throw Error("Tried to look up a variable by name without a type");f=a.getVariable(c,d);!f&&e&&(f=e.getVariable(c,d))}return f};
-Blockly.Variables.createVariable_=function(a,b,c,d){var e=a.getPotentialVariableMap();c||(c=Blockly.Variables.generateUniqueName(a.isFlyout?a.targetWorkspace:a));return e?e.createVariable(c,d,b):a.createVariable(c,d,b)};Blockly.Variables.getAddedVariables=function(a,b){var c=a.getAllVariables(),d=[];if(b.length!=c.length)for(var e=0;e<c.length;e++){var f=c[e];-1==b.indexOf(f)&&d.push(f)}return d};Blockly.VariablesDynamic={};Blockly.VariablesDynamic.onCreateVariableButtonClick_String=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"String")};Blockly.VariablesDynamic.onCreateVariableButtonClick_Number=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"Number")};Blockly.VariablesDynamic.onCreateVariableButtonClick_Colour=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"Colour")};
+Blockly.Variables.nameUsedWithAnyType_=function(a,b){var c=b.getVariableMap().getAllVariables();a=a.toLowerCase();for(var d=0,e;e=c[d];d++)if(e.name.toLowerCase()==a)return e;return null};Blockly.Variables.generateVariableFieldXml_=function(a){var b=a.type;""==b&&(b="''");return'<field name="VAR" id="'+a.getId()+'" variabletype="'+goog.string.htmlEscape(b)+'">'+goog.string.htmlEscape(a.name)+"</field>"};
+Blockly.Variables.getOrCreateVariablePackage=function(a,b,c,d){var e=Blockly.Variables.getVariable(a,b,c,d);e||(e=Blockly.Variables.createVariable_(a,b,c,d));return e};Blockly.Variables.getVariable=function(a,b,c,d){var e=a.getPotentialVariableMap();if(b){var f=a.getVariableById(b);!f&&e&&(f=e.getVariableById(b))}else if(c){if(void 0==d)throw Error("Tried to look up a variable by name without a type");f=a.getVariable(c,d);!f&&e&&(f=e.getVariable(c,d))}return f};
+Blockly.Variables.createVariable_=function(a,b,c,d){var e=a.getPotentialVariableMap();c||(c=Blockly.Variables.generateUniqueName(a.isFlyout?a.targetWorkspace:a));return e?e.createVariable(c,d,b):a.createVariable(c,d,b)};Blockly.Variables.getAddedVariables=function(a,b){var c=a.getAllVariables(),d=[];if(b.length!=c.length)for(var e=0;e<c.length;e++){var f=c[e];b.includes(f)||d.push(f)}return d};Blockly.VariablesDynamic={};Blockly.VariablesDynamic.onCreateVariableButtonClick_String=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"String")};Blockly.VariablesDynamic.onCreateVariableButtonClick_Number=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"Number")};Blockly.VariablesDynamic.onCreateVariableButtonClick_Colour=function(a){Blockly.Variables.createVariableButtonHandler(a.getTargetWorkspace(),null,"Colour")};
 Blockly.VariablesDynamic.flyoutCategory=function(a){var b=[],c=goog.dom.createDom("button");c.setAttribute("text",Blockly.Msg.NEW_STRING_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE_STRING");b.push(c);c=goog.dom.createDom("button");c.setAttribute("text",Blockly.Msg.NEW_NUMBER_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE_NUMBER");b.push(c);c=goog.dom.createDom("button");c.setAttribute("text",Blockly.Msg.NEW_COLOUR_VARIABLE);c.setAttribute("callbackKey","CREATE_VARIABLE_COLOUR");
 b.push(c);a.registerButtonCallback("CREATE_VARIABLE_STRING",Blockly.VariablesDynamic.onCreateVariableButtonClick_String);a.registerButtonCallback("CREATE_VARIABLE_NUMBER",Blockly.VariablesDynamic.onCreateVariableButtonClick_Number);a.registerButtonCallback("CREATE_VARIABLE_COLOUR",Blockly.VariablesDynamic.onCreateVariableButtonClick_Colour);a=Blockly.VariablesDynamic.flyoutCategoryBlocks(a);return b=b.concat(a)};
-Blockly.VariablesDynamic.flyoutCategoryBlocks=function(a){a=a.getAllVariables();a.sort(Blockly.VariableModel.compareByName);var b=[];if(0<a.length){if(Blockly.Blocks.variables_set_dynamic){var c='<xml><block type="variables_set_dynamic" gap="24">'+Blockly.Variables.generateVariableFieldXmlString(a[0])+"</block></xml>";c=Blockly.Xml.textToDom(c).firstChild;b.push(c)}if(Blockly.Blocks.variables_get_dynamic)for(var d=0;c=a[d];d++)c='<xml><block type="variables_get_dynamic" gap="8">'+Blockly.Variables.generateVariableFieldXmlString(c)+
+Blockly.VariablesDynamic.flyoutCategoryBlocks=function(a){a=a.getAllVariables();a.sort(Blockly.VariableModel.compareByName);var b=[];if(0<a.length){if(Blockly.Blocks.variables_set_dynamic){var c='<xml><block type="variables_set_dynamic" gap="24">'+Blockly.Variables.generateVariableFieldXml_(a[0])+"</block></xml>";c=Blockly.Xml.textToDom(c).firstChild;b.push(c)}if(Blockly.Blocks.variables_get_dynamic)for(var d=0;c=a[d];d++)c='<xml><block type="variables_get_dynamic" gap="8">'+Blockly.Variables.generateVariableFieldXml_(c)+
 "</block></xml>",c=Blockly.Xml.textToDom(c).firstChild,b.push(c)}return b};Blockly.WorkspaceAudio=function(a){this.parentWorkspace_=a;this.SOUNDS_=Object.create(null)};Blockly.WorkspaceAudio.prototype.lastSound_=null;Blockly.WorkspaceAudio.prototype.dispose=function(){this.SOUNDS_=this.parentWorkspace_=null};Blockly.WorkspaceAudio.prototype.load=function(a,b){if(a.length){try{var c=new window.Audio}catch(h){return}for(var d,e=0;e<a.length;e++){var f=a[e],g=f.match(/\.(\w+)$/);if(g&&c.canPlayType("audio/"+g[1])){d=new window.Audio(f);break}}d&&d.play&&(this.SOUNDS_[b]=d)}};
 Blockly.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;
@@ -1198,8 +1166,8 @@ f.name);h||c.appendChild(g)}}a.inputsInlineDefault!=a.inputsInline&&c.setAttribu
 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],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=k.hasAttribute("x")?parseInt(k.getAttribute("x"),10):10,n=k.hasAttribute("y")?parseInt(k.getAttribute("y"),10):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.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 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=
@@ -1208,7 +1176,7 @@ Blockly.Xml.domToVariables=function(a,b){for(var c=0,d;d=a.children[c];c++){var
 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||"disabled"==e);(e=a.getAttribute("deletable"))&&c.setDeletable("true"==
+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"==
 e);(e=a.getAttribute("movable"))&&c.setMovable("true"==e);(e=a.getAttribute("editable"))&&c.setEditable("true"==e);(e=a.getAttribute("collapsed"))&&c.setCollapsed("true"==e);if("shadow"==a.nodeName.toLowerCase()){d=c.getChildren();for(e=0;g=d[e];e++)goog.asserts.assert(g.isShadow(),"Shadow block not allowed non-shadow child.");goog.asserts.assert(0==c.getVarModels().length,"Shadow blocks cannot have variable references.");c.setShadow(!0)}return c};
 Blockly.Xml.domToFieldVariable_=function(a,b,c,d){var e=b.getAttribute("variabletype")||"";"''"==e&&(e="");a=Blockly.Variables.getOrCreateVariablePackage(a,b.id,c,e);if(null!=e&&e!==a.type)throw Error("Serialized variable type with id '"+a.getId()+"' had type "+a.type+", and does not match variable field that references it: "+Blockly.Xml.domToText(b)+".");d.setValue(a.getId())};
 Blockly.Xml.domToField_=function(a,b,c){var d=a.getField(b);d?(a=a.workspace,b=c.textContent,d instanceof Blockly.FieldVariable?Blockly.Xml.domToFieldVariable_(a,c,b,d):d.setValue(b)):console.warn("Ignoring non-existent field "+b+" in block "+a.type)};Blockly.Xml.deleteNext=function(a){for(var b=0,c;c=a.childNodes[b];b++)if("next"==c.nodeName.toLowerCase()){a.removeChild(c);break}};goog.global.Blockly||(goog.global.Blockly={});goog.global.Blockly.Xml||(goog.global.Blockly.Xml={});
@@ -1264,8 +1232,7 @@ a;this.flyout_.show(a.childNodes)}}else if(this.options.languageTree)throw"Can't
 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*
 (1-d),b*(1-d)).scale(d),this.scrollX=a.e-e.absoluteLeft,this.scrollY=a.f-e.absoluteTop),this.setScale(c))};Blockly.WorkspaceSvg.prototype.zoomCenter=function(a){var b=this.getMetrics();this.zoom(b.viewWidth/2,b.viewHeight/2,a)};
 Blockly.WorkspaceSvg.prototype.zoomToFit=function(){var a=this.getMetrics(),b=this.getBlocksBoundingBox(),c=b.width;b=b.height;if(c){var d=a.viewWidth,e=a.viewHeight;this.flyout_&&(d-=this.flyout_.width_);this.scrollbar||(c+=a.contentLeft,b+=a.contentTop);this.setScale(Math.min(d/c,e/b));this.scrollCenter()}};
-Blockly.WorkspaceSvg.prototype.scrollCenter=function(){if(this.scrollbar){var a=this.getMetrics(),b=(a.contentWidth-a.viewWidth)/2;this.flyout_&&(b-=this.flyout_.width_/2);this.scrollbar.set(b,(a.contentHeight-a.viewHeight)/2)}else console.warn("Tried to scroll a non-scrollable workspace.")};
-Blockly.WorkspaceSvg.prototype.centerOnBlock=function(a){if(this.scrollbar){if(a=this.getBlockById(a)){var b=a.getRelativeToSurfaceXY(),c=a.getHeightWidth(),d=this.scale;a=(b.x+(this.RTL?-1:1)*c.width/2)*d;b=(b.y+c.height/2)*d;c=this.getMetrics();a=a-c.contentLeft-c.viewWidth/2;b=b-c.contentTop-c.viewHeight/2;Blockly.hideChaff();this.scrollbar.set(a,b)}}else console.warn("Tried to scroll a non-scrollable workspace.")};
+Blockly.WorkspaceSvg.prototype.scrollCenter=function(){if(this.scrollbar){var a=this.getMetrics(),b=(a.contentWidth-a.viewWidth)/2;this.flyout_&&(b-=this.flyout_.width_/2);this.scrollbar.set(b,(a.contentHeight-a.viewHeight)/2)}};
 Blockly.WorkspaceSvg.prototype.setScale=function(a){this.options.zoomOptions.maxScale&&a>this.options.zoomOptions.maxScale?a=this.options.zoomOptions.maxScale:this.options.zoomOptions.minScale&&a<this.options.zoomOptions.minScale&&(a=this.options.zoomOptions.minScale);this.scale=a;this.grid_&&this.grid_.update(this.scale);this.scrollbar?this.scrollbar.resize():this.translate(this.scrollX,this.scrollY);Blockly.hideChaff(!1);this.flyout_&&this.flyout_.reflow()};
 Blockly.WorkspaceSvg.getDimensionsPx_=function(a){var b=0,c=0;a&&(b=a.getWidth(),c=a.getHeight());return{width:b,height:c}};Blockly.WorkspaceSvg.getContentDimensions_=function(a,b){return a.scrollbar?Blockly.WorkspaceSvg.getContentDimensionsBounded_(a,b):Blockly.WorkspaceSvg.getContentDimensionsExact_(a)};
 Blockly.WorkspaceSvg.getContentDimensionsExact_=function(a){var b=a.getBlocksBoundingBox(),c=a.scale;a=b.width*c;var d=b.height*c,e=b.x*c;b=b.y*c;return{left:e,top:b,right:e+a,bottom:b+d,width:a,height:d}};
@@ -1276,7 +1243,7 @@ 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.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.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.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)};
@@ -1341,7 +1308,7 @@ Blockly.Block.prototype.getDescendants=function(){for(var a=[this],b,c=0;b=this.
 Blockly.Block.prototype.setMovable=function(a){this.movable_=a};Blockly.Block.prototype.isShadow=function(){return this.isShadow_};Blockly.Block.prototype.setShadow=function(a){this.isShadow_=a};Blockly.Block.prototype.isEditable=function(){return this.editable_&&!(this.workspace&&this.workspace.options.readOnly)};Blockly.Block.prototype.setEditable=function(a){this.editable_=a;a=0;for(var b;b=this.inputList[a];a++)for(var c=0,d;d=b.fieldRow[c];c++)d.updateEditable()};
 Blockly.Block.prototype.setConnectionsHidden=function(a){if(!a&&this.isCollapsed()){if(this.outputConnection&&this.outputConnection.setHidden(a),this.previousConnection&&this.previousConnection.setHidden(a),this.nextConnection){this.nextConnection.setHidden(a);var b=this.nextConnection.targetBlock();b&&b.setConnectionsHidden(a)}}else for(var c=this.getConnections_(!0),d=0;b=c[d];d++)b.setHidden(a),b.isSuperior()&&(b=b.targetBlock())&&b.setConnectionsHidden(a)};
 Blockly.Block.prototype.setHelpUrl=function(a){this.helpUrl=a};Blockly.Block.prototype.setTooltip=function(a){this.tooltip=a};Blockly.Block.prototype.getColour=function(){return this.colour_};Blockly.Block.prototype.getHue=function(){return this.hue_};
-Blockly.Block.prototype.setColour=function(a){var b=goog.isString(a)?Blockly.utils.replaceMessageReferences(a):a,c=Number(b);if(!isNaN(c)&&0<=c&&360>=c)this.hue_=c,this.colour_=Blockly.hueToRgb(c);else if(goog.isString(b)&&/^#[0-9a-fA-F]{6}$/.test(b))this.colour_=b,this.hue_=null;else throw c='Invalid colour: "'+b+'"',a!=b&&(c+=' (from "'+a+'")'),c;};
+Blockly.Block.prototype.setColour=function(a){var b=Number(a);if(!isNaN(b)&&0<=b&&360>=b)this.hue_=b,this.colour_=Blockly.hueToRgb(b);else if(goog.isString(a)&&/^#[0-9a-fA-F]{6}$/.test(a))this.colour_=a,this.hue_=null;else throw"Invalid colour: "+a;};
 Blockly.Block.prototype.setOnChange=function(a){if(a&&!goog.isFunction(a))throw Error("onchange must be a function.");this.onchangeWrapper_&&this.workspace.removeChangeListener(this.onchangeWrapper_);if(this.onchange=a)this.onchangeWrapper_=a.bind(this),this.workspace.addChangeListener(this.onchangeWrapper_)};Blockly.Block.prototype.getField=function(a){for(var b=0,c;c=this.inputList[b];b++)for(var d=0,e;e=c.fieldRow[d];d++)if(e.name===a)return e;return null};
 Blockly.Block.prototype.getVars=function(){for(var a=[],b=0,c;c=this.inputList[b];b++)for(var d=0,e;e=c.fieldRow[d];d++)e instanceof Blockly.FieldVariable&&a.push(e.getValue());return a};Blockly.Block.prototype.getVarModels=function(){for(var a=[],b=0,c;c=this.inputList[b];b++)for(var d=0,e;e=c.fieldRow[d];d++)e instanceof Blockly.FieldVariable&&(e=this.workspace.getVariableById(e.getValue()))&&a.push(e);return a};
 Blockly.Block.prototype.updateVarName=function(a){for(var b=0,c;c=this.inputList[b];b++)for(var d=0,e;e=c.fieldRow[d];d++)e instanceof Blockly.FieldVariable&&a.getId()==e.getValue()&&e.setText(a.name)};Blockly.Block.prototype.renameVarById=function(a,b){for(var c=0,d;d=this.inputList[c];c++)for(var e=0,f;f=d.fieldRow[e];e++)f instanceof Blockly.FieldVariable&&a==f.getValue()&&f.setValue(b)};Blockly.Block.prototype.getFieldValue=function(a){return(a=this.getField(a))?a.getValue():null};
@@ -1355,9 +1322,9 @@ Blockly.Block.prototype.setDisabled=function(a){this.disabled!=a&&(Blockly.Event
 Blockly.Block.prototype.setCollapsed=function(a){this.collapsed_!=a&&(Blockly.Events.fire(new Blockly.Events.BlockChange(this,"collapsed",null,this.collapsed_,a)),this.collapsed_=a)};
 Blockly.Block.prototype.toString=function(a,b){var c=[],d=b||"?";if(this.collapsed_)c.push(this.getInput("_TEMP_COLLAPSED_INPUT").fieldRow[0].text_);else for(var e=0,f;f=this.inputList[e];e++){for(var g=0,h;h=f.fieldRow[g];g++)h instanceof Blockly.FieldDropdown&&!h.getValue()?c.push(d):c.push(h.getText());f.connection&&((f=f.connection.targetBlock())?c.push(f.toString(void 0,b)):c.push(d))}c=goog.string.trim(c.join(" "))||"???";a&&(c=goog.string.truncate(c,a));return c};
 Blockly.Block.prototype.appendValueInput=function(a){return this.appendInput_(Blockly.INPUT_VALUE,a)};Blockly.Block.prototype.appendStatementInput=function(a){return this.appendInput_(Blockly.NEXT_STATEMENT,a)};Blockly.Block.prototype.appendDummyInput=function(a){return this.appendInput_(Blockly.DUMMY_INPUT,a||"")};
-Blockly.Block.prototype.jsonInit=function(a){var b=a.type;goog.asserts.assert(void 0==a.output||void 0==a.previousStatement,"Must not have both an output and a previousStatement.");if(void 0!==a.colour){var c=a.colour;try{this.setColour(c)}catch(d){console.warn('Block "'+b+'": Illegal color value: ',c)}}for(b=0;void 0!==a["message"+b];)this.interpolate_(a["message"+b],a["args"+b]||[],a["lastDummyAlign"+b]),b++;void 0!==a.inputsInline&&this.setInputsInline(a.inputsInline);void 0!==a.output&&this.setOutput(!0,
-a.output);void 0!==a.previousStatement&&this.setPreviousStatement(!0,a.previousStatement);void 0!==a.nextStatement&&this.setNextStatement(!0,a.nextStatement);void 0!==a.tooltip&&(c=a.tooltip,b=Blockly.utils.replaceMessageReferences(c),this.setTooltip(b));void 0!==a.enableContextMenu&&(c=a.enableContextMenu,this.contextMenu=!!c);void 0!==a.helpUrl&&(c=a.helpUrl,b=Blockly.utils.replaceMessageReferences(c),this.setHelpUrl(b));goog.isString(a.extensions)&&(console.warn("JSON attribute 'extensions' should be an array of strings. Found raw string in JSON for '"+
-a.type+"' block."),a.extensions=[a.extensions]);void 0!==a.mutator&&Blockly.Extensions.apply(a.mutator,this,!0);if(Array.isArray(a.extensions))for(a=a.extensions,b=0;b<a.length;++b)Blockly.Extensions.apply(a[b],this,!1)};
+Blockly.Block.prototype.jsonInit=function(a){var b=a.type;goog.asserts.assert(void 0==a.output||void 0==a.previousStatement,"Must not have both an output and a previousStatement.");if(void 0!==a.colour){var c=a.colour;try{var d=goog.isString(c)?Blockly.utils.replaceMessageReferences(c):c;this.setColour(d)}catch(e){console.warn('Block "'+b+'": Illegal color value: ',c)}}for(b=0;void 0!==a["message"+b];)this.interpolate_(a["message"+b],a["args"+b]||[],a["lastDummyAlign"+b]),b++;void 0!==a.inputsInline&&
+this.setInputsInline(a.inputsInline);void 0!==a.output&&this.setOutput(!0,a.output);void 0!==a.previousStatement&&this.setPreviousStatement(!0,a.previousStatement);void 0!==a.nextStatement&&this.setNextStatement(!0,a.nextStatement);void 0!==a.tooltip&&(c=a.tooltip,b=Blockly.utils.replaceMessageReferences(c),this.setTooltip(b));void 0!==a.enableContextMenu&&(c=a.enableContextMenu,this.contextMenu=!!c);void 0!==a.helpUrl&&(c=a.helpUrl,b=Blockly.utils.replaceMessageReferences(c),this.setHelpUrl(b));
+goog.isString(a.extensions)&&(console.warn("JSON attribute 'extensions' should be an array of strings. Found raw string in JSON for '"+a.type+"' block."),a.extensions=[a.extensions]);void 0!==a.mutator&&Blockly.Extensions.apply(a.mutator,this,!0);if(Array.isArray(a.extensions))for(a=a.extensions,b=0;b<a.length;++b)Blockly.Extensions.apply(a[b],this,!1)};
 Blockly.Block.prototype.mixin=function(a,b){if(goog.isDef(b)&&!goog.isBoolean(b))throw Error("opt_disableCheck must be a boolean if provided");if(!b){var c=[],d;for(d in a)void 0!==this[d]&&c.push(d);if(c.length)throw Error("Mixin will overwrite block members: "+JSON.stringify(c));}goog.mixin(this,a)};
 Blockly.Block.prototype.interpolate_=function(a,b,c){var d=Blockly.utils.tokenizeInterpolation(a),e=[],f=0;a=[];for(var g=0;g<d.length;g++){var h=d[g];if("number"==typeof h){if(0>=h||h>b.length)throw Error('Block "'+this.type+'": Message index %'+h+" out of range.");if(e[h])throw Error('Block "'+this.type+'": Message index %'+h+" duplicated.");e[h]=!0;f++;a.push(b[h-1])}else(h=h.trim())&&a.push(h)}if(f!=b.length)throw Error('Block "'+this.type+'": Message does not reference all '+b.length+" arg(s).");
 a.length&&("string"==typeof a[a.length-1]||goog.string.startsWith(a[a.length-1].type,"field_"))&&(g={type:"input_dummy"},c&&(g.align=c),a.push(g));c={LEFT:Blockly.ALIGN_LEFT,RIGHT:Blockly.ALIGN_RIGHT,CENTRE:Blockly.ALIGN_CENTRE};b=[];for(g=0;g<a.length;g++)if(e=a[g],"string"==typeof e)b.push([e,void 0]);else{d=f=null;do if(h=!1,"string"==typeof e)f=new Blockly.FieldLabel(e);else switch(e.type){case "input_value":d=this.appendValueInput(e.name);break;case "input_statement":d=this.appendStatementInput(e.name);
@@ -1402,8 +1369,15 @@ Blockly.BlockSvg.prototype.moveConnections_=function(a,b){if(this.rendered){for(
 Blockly.BlockSvg.prototype.setDragging=function(a){if(a){var b=this.getSvgRoot();b.translate_="";b.skew_="";Blockly.draggingConnections_=Blockly.draggingConnections_.concat(this.getConnections_(!0));Blockly.utils.addClass(this.svgGroup_,"blocklyDragging")}else Blockly.draggingConnections_=[],Blockly.utils.removeClass(this.svgGroup_,"blocklyDragging");for(b=0;b<this.childBlocks_.length;b++)this.childBlocks_[b].setDragging(a)};
 Blockly.BlockSvg.prototype.updateMovable=function(){this.isMovable()?Blockly.utils.addClass(this.svgGroup_,"blocklyDraggable"):Blockly.utils.removeClass(this.svgGroup_,"blocklyDraggable")};Blockly.BlockSvg.prototype.setMovable=function(a){Blockly.BlockSvg.superClass_.setMovable.call(this,a);this.updateMovable()};Blockly.BlockSvg.prototype.setEditable=function(a){Blockly.BlockSvg.superClass_.setEditable.call(this,a);a=this.getIcons();for(var b=0;b<a.length;b++)a[b].updateEditable()};
 Blockly.BlockSvg.prototype.setShadow=function(a){Blockly.BlockSvg.superClass_.setShadow.call(this,a);this.updateColour()};Blockly.BlockSvg.prototype.getSvgRoot=function(){return this.svgGroup_};
-Blockly.BlockSvg.prototype.dispose=function(a,b){if(this.workspace){Blockly.Tooltip.hide();Blockly.Field.startCache();var c=this.workspace;Blockly.selected==this&&(this.unselect(),this.workspace.cancelCurrentGesture());Blockly.ContextMenu.currentBlock==this&&Blockly.ContextMenu.hide();b&&this.rendered&&(this.unplug(a),Blockly.BlockAnimations.disposeUiEffect(this));this.rendered=!1;if(this.warningTextDb_){for(var d in this.warningTextDb_)clearTimeout(this.warningTextDb_[d]);this.warningTextDb_=null}Blockly.Events.disable();
+Blockly.BlockSvg.prototype.dispose=function(a,b){if(this.workspace){Blockly.Tooltip.hide();Blockly.Field.startCache();var c=this.workspace;Blockly.selected==this&&(this.unselect(),this.workspace.cancelCurrentGesture());Blockly.ContextMenu.currentBlock==this&&Blockly.ContextMenu.hide();b&&this.rendered&&(this.unplug(a),this.disposeUiEffect());this.rendered=!1;if(this.warningTextDb_){for(var d in this.warningTextDb_)clearTimeout(this.warningTextDb_[d]);this.warningTextDb_=null}Blockly.Events.disable();
 try{var e=this.getIcons();for(d=0;d<e.length;d++)e[d].dispose()}finally{Blockly.Events.enable()}Blockly.BlockSvg.superClass_.dispose.call(this,a);goog.dom.removeNode(this.svgGroup_);c.resizeContents();this.svgPathDark_=this.svgPathLight_=this.svgPath_=this.svgGroup_=null;Blockly.Field.stopCache()}};
+Blockly.BlockSvg.prototype.disposeUiEffect=function(){this.workspace.getAudioManager().play("delete");var a=this.workspace.getSvgXY(this.svgGroup_),b=this.svgGroup_.cloneNode(!0);b.translateX_=a.x;b.translateY_=a.y;b.setAttribute("transform","translate("+b.translateX_+","+b.translateY_+")");this.workspace.getParentSvg().appendChild(b);b.bBox_=b.getBBox();Blockly.BlockSvg.disposeUiStep_(b,this.RTL,new Date,this.workspace.scale)};
+Blockly.BlockSvg.disposeUiStep_=function(a,b,c,d){var e=(new Date-c)/150;1<e?goog.dom.removeNode(a):(a.setAttribute("transform","translate("+(a.translateX_+(b?-1:1)*a.bBox_.width*d/2*e)+","+(a.translateY_+a.bBox_.height*d*e)+") scale("+(1-e)*d+")"),setTimeout(Blockly.BlockSvg.disposeUiStep_,10,a,b,c,d))};
+Blockly.BlockSvg.prototype.connectionUiEffect=function(){this.workspace.getAudioManager().play("click");if(!(1>this.workspace.scale)){var a=this.workspace.getSvgXY(this.svgGroup_);this.outputConnection?(a.x+=(this.RTL?3:-3)*this.workspace.scale,a.y+=13*this.workspace.scale):this.previousConnection&&(a.x+=(this.RTL?-23:23)*this.workspace.scale,a.y+=3*this.workspace.scale);a=Blockly.utils.createSvgElement("circle",{cx:a.x,cy:a.y,r:0,fill:"none",stroke:"#888","stroke-width":10},this.workspace.getParentSvg());
+Blockly.BlockSvg.connectionUiStep_(a,new Date,this.workspace.scale)}};Blockly.BlockSvg.connectionUiStep_=function(a,b,c){var d=(new Date-b)/150;1<d?goog.dom.removeNode(a):(a.setAttribute("r",25*d*c),a.style.opacity=1-d,Blockly.BlockSvg.disconnectUiStop_.pid_=setTimeout(Blockly.BlockSvg.connectionUiStep_,10,a,b,c))};
+Blockly.BlockSvg.prototype.disconnectUiEffect=function(){this.workspace.getAudioManager().play("disconnect");if(!(1>this.workspace.scale)){var a=this.getHeightWidth().height;a=Math.atan(10/a)/Math.PI*180;this.RTL||(a*=-1);Blockly.BlockSvg.disconnectUiStep_(this.svgGroup_,a,new Date)}};
+Blockly.BlockSvg.disconnectUiStep_=function(a,b,c){var d=(new Date-c)/200;1<d?a.skew_="":(a.skew_="skewX("+Math.round(Math.sin(d*Math.PI*3)*(1-d)*b)+")",Blockly.BlockSvg.disconnectUiStop_.group=a,Blockly.BlockSvg.disconnectUiStop_.pid=setTimeout(Blockly.BlockSvg.disconnectUiStep_,10,a,b,c));a.setAttribute("transform",a.translate_+a.skew_)};
+Blockly.BlockSvg.disconnectUiStop_=function(){if(Blockly.BlockSvg.disconnectUiStop_.group){clearTimeout(Blockly.BlockSvg.disconnectUiStop_.pid);var a=Blockly.BlockSvg.disconnectUiStop_.group;a.skew_="";a.setAttribute("transform",a.translate_);Blockly.BlockSvg.disconnectUiStop_.group=null}};Blockly.BlockSvg.disconnectUiStop_.pid=0;Blockly.BlockSvg.disconnectUiStop_.group=null;
 Blockly.BlockSvg.prototype.updateColour=function(){if(!this.disabled){var a=this.getColour(),b=goog.color.hexToRgb(a);if(this.isShadow())b=goog.color.lighten(b,.6),a=goog.color.rgbArrayToHex(b),this.svgPathLight_.style.display="none",this.svgPathDark_.setAttribute("fill",a);else{this.svgPathLight_.style.display="";var c=goog.color.rgbArrayToHex(goog.color.lighten(b,.3));b=goog.color.rgbArrayToHex(goog.color.darken(b,.2));this.svgPathLight_.setAttribute("stroke",c);this.svgPathDark_.setAttribute("fill",
 b)}this.svgPath_.setAttribute("fill",a);a=this.getIcons();for(c=0;c<a.length;c++)a[c].updateColour();for(a=0;c=this.inputList[a];a++){b=0;for(var d;d=c.fieldRow[b];b++)d.forceRerender()}}};
 Blockly.BlockSvg.prototype.updateDisabled=function(){this.disabled||this.getInheritedDisabled()?Blockly.utils.addClass(this.svgGroup_,"blocklyDisabled")&&this.svgPath_.setAttribute("fill","url(#"+this.workspace.options.disabledPatternId+")"):Blockly.utils.removeClass(this.svgGroup_,"blocklyDisabled")&&this.updateColour();for(var a=this.getChildren(),b=0,c;c=a[b];b++)c.updateDisabled()};
@@ -1580,13 +1554,11 @@ Blockly.HorizontalFlyout.prototype.getClientRect=function(){if(!this.svgGroup_)r
 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,
 contentTop:a.y,contentLeft:a.x,absoluteTop:b,absoluteLeft:0}};Blockly.VerticalFlyout.prototype.setMetrics_=function(a){var b=this.getMetrics_();b&&(goog.isNumber(a.y)&&(this.workspace_.scrollY=-b.contentHeight*a.y),this.workspace_.translate(this.workspace_.scrollX+b.absoluteLeft,this.workspace_.scrollY+b.absoluteTop))};
-Blockly.VerticalFlyout.prototype.position=function(){if(this.isVisible()){var a=this.targetWorkspace_.getMetrics();if(a){this.height_=a.viewHeight;this.setBackgroundPath_(this.width_-this.CORNER_RADIUS,a.viewHeight-2*this.CORNER_RADIUS);var b=a.absoluteTop,c=a.absoluteLeft;this.toolboxPosition_==Blockly.TOOLBOX_AT_RIGHT&&(this.leftEdge_=c+=a.viewWidth-this.width_);this.positionAt_(this.width_,this.height_,c,b)}}};
+Blockly.VerticalFlyout.prototype.position=function(){if(this.isVisible()){var a=this.targetWorkspace_.getMetrics();if(a){this.height_=a.viewHeight;this.setBackgroundPath_(this.width_-this.CORNER_RADIUS,a.viewHeight-2*this.CORNER_RADIUS);var b=a.absoluteTop,c=a.absoluteLeft;this.toolboxPosition_==Blockly.TOOLBOX_AT_RIGHT&&(c+=a.viewWidth-this.width_);this.positionAt_(this.width_,this.height_,c,b)}}};
 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_;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;if(this.toolboxPosition_==Blockly.TOOLBOX_AT_LEFT)return new goog.math.Rect(b-1E9,-1E9,1E9+a,2E9);if(goog.userAgent.GECKO&&this.targetWorkspace_&&this.targetWorkspace_.isMutator){var c=this.targetWorkspace_.svgGroup_.getBoundingClientRect().x;10>Math.abs(c-b)&&(b+=this.leftEdge_*this.targetWorkspace_.options.parentWorkspace.scale)}return 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;
@@ -1636,8 +1608,7 @@ Blockly.Css.CONTENT=[".blocklySvg {","background-color: #fff;","outline: none;",
 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"};
-Blockly.WidgetDiv.positionWithAnchor=function(a,b,c,d){var e=Blockly.WidgetDiv.calculateY_(a,b,c);a=Blockly.WidgetDiv.calculateX_(a,b,c,d);Blockly.WidgetDiv.positionInternal_(a,e,c.height)};Blockly.WidgetDiv.calculateX_=function(a,b,c,d){if(d)return b=Math.max(b.right-c.width,a.left),Math.min(b,a.right-c.width);b=Math.min(b.left,a.right-c.width);return Math.max(b,a.left)};Blockly.WidgetDiv.calculateY_=function(a,b,c){return b.bottom+c.height>=a.bottom?b.top-c.height:b.bottom};Blockly.inject=function(a,b){Blockly.checkBlockColourConstants();goog.isString(a)&&(a=document.getElementById(a)||document.querySelector(a));if(!goog.dom.contains(document,a))throw"Error: container is not in current document.";var c=new Blockly.Options(b||{}),d=goog.dom.createDom("DIV","injectionDiv");a.appendChild(d);var e=Blockly.createDom_(d,c),f=new Blockly.BlockDragSurfaceSvg(d);d=new Blockly.WorkspaceDragSurfaceSvg(d);c=Blockly.createMainWorkspace_(e,c,f,d);Blockly.init_(c);Blockly.mainWorkspace=
-c;Blockly.svgResize(c);return c};
+Blockly.WidgetDiv.positionWithAnchor=function(a,b,c,d){var e=Blockly.WidgetDiv.calculateY_(a,b,c);a=Blockly.WidgetDiv.calculateX_(a,b,c,d);Blockly.WidgetDiv.positionInternal_(a,e,c.height)};Blockly.WidgetDiv.calculateX_=function(a,b,c,d){if(d)return b=Math.max(b.right-c.width,a.left),Math.min(b,a.right-c.width);b=Math.min(b.left,a.right-c.width);return Math.max(b,a.left)};Blockly.WidgetDiv.calculateY_=function(a,b,c){return b.bottom+c.height>=a.bottom?b.top-c.height:b.bottom};Blockly.inject=function(a,b){goog.isString(a)&&(a=document.getElementById(a)||document.querySelector(a));if(!goog.dom.contains(document,a))throw"Error: container is not in current document.";var c=new Blockly.Options(b||{}),d=goog.dom.createDom("DIV","injectionDiv");a.appendChild(d);var e=Blockly.createDom_(d,c),f=new Blockly.BlockDragSurfaceSvg(d);d=new Blockly.WorkspaceDragSurfaceSvg(d);c=Blockly.createMainWorkspace_(e,c,f,d);Blockly.init_(c);Blockly.mainWorkspace=c;Blockly.svgResize(c);return c};
 Blockly.createDom_=function(a,b){a.setAttribute("dir","LTR");goog.ui.Component.setDefaultRightToLeft(b.RTL);Blockly.Css.inject(b.hasCss,b.pathToMedia);var c=Blockly.utils.createSvgElement("svg",{xmlns:"http://www.w3.org/2000/svg","xmlns:html":"http://www.w3.org/1999/xhtml","xmlns:xlink":"http://www.w3.org/1999/xlink",version:"1.1","class":"blocklySvg"},a),d=Blockly.utils.createSvgElement("defs",{},c),e=String(Math.random()).substring(2),f=Blockly.utils.createSvgElement("filter",{id:"blocklyEmbossFilter"+
 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};
@@ -1655,13 +1626,8 @@ Blockly.copy_(Blockly.selected)):88!=a.keyCode||Blockly.selected.workspace.isFly
 !0),Blockly.Events.setGroup(!1))}};Blockly.copy_=function(a){var b=Blockly.Xml.blockToDom(a);Blockly.Xml.deleteNext(b);var c=a.getRelativeToSurfaceXY();b.setAttribute("x",a.RTL?-c.x:c.x);b.setAttribute("y",c.y);Blockly.clipboardXml_=b;Blockly.clipboardSource_=a.workspace};Blockly.duplicate_=function(a){var b=Blockly.clipboardXml_,c=Blockly.clipboardSource_;Blockly.copy_(a);a.workspace.paste(Blockly.clipboardXml_);Blockly.clipboardXml_=b;Blockly.clipboardSource_=c};
 Blockly.onContextMenu_=function(a){Blockly.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;b<a.length;b++){var c=a[b];if(c){var d=c.type;null==d||""===d?console.warn("Block definition #"+b+" in JSON array is missing a type attribute. Skipping."):(Blockly.Blocks[d]&&console.warn("Block definition #"+b+' in JSON array overwrites prior definition of "'+d+'".'),Blockly.Blocks[d]={init:Blockly.jsonInitFactory_(c)})}else console.warn("Block definition #"+b+" in JSON array is "+c+". Skipping.")}};
+Blockly.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},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)};
-Blockly.checkBlockColourConstants=function(){Blockly.checkBlockColourConstant_("LOGIC_HUE",["Blocks","logic","HUE"],!0);Blockly.checkBlockColourConstant_("LOGIC_HUE",["Constants","Logic","HUE"],!1);Blockly.checkBlockColourConstant_("LOOPS_HUE",["Blocks","loops","HUE"],!0);Blockly.checkBlockColourConstant_("LOOPS_HUE",["Constants","Loops","HUE"],!1);Blockly.checkBlockColourConstant_("MATH_HUE",["Blocks","math","HUE"],!0);Blockly.checkBlockColourConstant_("MATH_HUE",["Constants","Math","HUE"],!1);Blockly.checkBlockColourConstant_("TEXTS_HUE",
-["Blocks","texts","HUE"],!0);Blockly.checkBlockColourConstant_("TEXTS_HUE",["Constants","Text","HUE"],!1);Blockly.checkBlockColourConstant_("LISTS_HUE",["Blocks","lists","HUE"],!0);Blockly.checkBlockColourConstant_("LISTS_HUE",["Constants","Lists","HUE"],!1);Blockly.checkBlockColourConstant_("COLOUR_HUE",["Blocks","colour","HUE"],!0);Blockly.checkBlockColourConstant_("COLOUR_HUE",["Constants","Colour","HUE"],!1);Blockly.checkBlockColourConstant_("VARIABLES_HUE",["Blocks","variables","HUE"],!0);Blockly.checkBlockColourConstant_("VARIABLES_HUE",
-["Constants","Variables","HUE"],!1);Blockly.checkBlockColourConstant_("VARIABLES_DYNAMIC_HUE",["Constants","VariablesDynamic","HUE"],!1);Blockly.checkBlockColourConstant_("PROCEDURES_HUE",["Blocks","procedures","HUE"],!0)};
-Blockly.checkBlockColourConstant_=function(a,b,c){for(var d="Blockly",e=Blockly,f=0;f<b.length;++f)d+="."+b[f],e&&(e=e[b[f]]);if(c?void 0!==e:e!=Blockly.Msg[a])a=(c?"%1 is unused and has been removed. Override Blockly.Msg.%2.":"%1 is deprecated and unused. Override Blockly.Msg.%2.").replace("%1",d).replace("%2",a),console.warn(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;
+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;

core/events/abstract.js

@@ -33,24 +33,9 @@ goog.require('goog.math.Coordinate');
 
 /**
  * Abstract class for an event.
- * @param {Blockly.Block|Blockly.VariableModel} elem The block or variable.
  * @constructor
  */
-Blockly.Events.Abstract = function(elem) {
-  /**
-   * The block id for the block this event pertains to, if appropriate for the
-   * event type.
-   * @type {string|undefined}
-   */
-  this.blockId = undefined;
-
-  /**
-   * The variable id for the variable this event pertains to. Only set in
-   * VarCreate, VarDelete, and VarRename events.
-   * @type {string|undefined}
-   */
-  this.varId = undefined;
-
+Blockly.Events.Abstract = function() {
   /**
    * The workspace identifier for this event.
    * @type {string|undefined}
@@ -63,22 +48,12 @@ Blockly.Events.Abstract = function(elem) {
    * perspective, and should be undone together.
    * @type {string}
    */
-  this.group = undefined;
+  this.group = Blockly.Events.group_;
 
   /**
    * Sets whether the event should be added to the undo stack.
    * @type {boolean}
    */
-  this.recordUndo = undefined;
-
-  if (elem instanceof Blockly.Block) {
-    this.blockId = elem.id;
-    this.workspaceId = elem.workspace.id;
-  } else if (elem instanceof Blockly.VariableModel) {
-    this.workspaceId = elem.workspace.id;
-    this.varId = elem.getId();
-  }
-  this.group = Blockly.Events.group_;
   this.recordUndo = Blockly.Events.recordUndo;
 };
 
@@ -90,12 +65,6 @@ Blockly.Events.Abstract.prototype.toJson = function() {
   var json = {
     'type': this.type
   };
-  if (this.blockId) {
-    json['blockId'] = this.blockId;
-  }
-  if (this.varId) {
-    json['varId'] = this.varId;
-  }
   if (this.group) {
     json['group'] = this.group;
   }
@@ -107,8 +76,6 @@ Blockly.Events.Abstract.prototype.toJson = function() {
  * @param {!Object} json JSON representation.
  */
 Blockly.Events.Abstract.prototype.fromJson = function(json) {
-  this.blockId = json['blockId'];
-  this.varId = json['varId'];
   this.group = json['group'];
 };
 

core/events/block/base.js

@@ -0,0 +1,69 @@
+/**
+ * @license
+ * Visual Blocks Editor
+ *
+ * Copyright 2018 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Base class for block events.
+ * @author fenichel@google.com (Rachel Fenichel)
+ */
+'use strict';
+
+goog.provide('Blockly.Events.BlockBase');
+
+goog.require('Blockly.Events');
+goog.require('Blockly.Events.Abstract');
+
+/**
+ * Abstract class for a block event.
+ * @param {Blockly.Block} block The block this event corresponds to.
+ * @extends {Blockly.Events.Abstract}
+ * @constructor
+ */
+Blockly.Events.BlockBase = function(block) {
+  Blockly.Events.BlockBase.superClass_.constructor.call(this);
+
+  /**
+   * The block id for the block this event pertains to
+   * @type {string}
+   */
+  this.blockId = block.id;
+  this.workspaceId = block.workspace.id;
+};
+goog.inherits(Blockly.Events.BlockBase, Blockly.Events.Abstract);
+
+/**
+ * Encode the event as JSON.
+ * @return {!Object} JSON representation.
+ */
+Blockly.Events.BlockBase.prototype.toJson = function() {
+  var json = Blockly.Events.BlockBase.superClass_.toJson.call(this);
+  if (this.blockId) {
+    json['blockId'] = this.blockId;
+  }
+  return json;
+};
+
+/**
+ * Decode the JSON event.
+ * @param {!Object} json JSON representation.
+ */
+Blockly.Events.BlockBase.prototype.fromJson = function(json) {
+  Blockly.Events.BlockBase.superClass_.toJson.call(this);
+  this.blockId = json['blockId'];
+};

core/events/block/change.js

@@ -29,7 +29,7 @@ goog.provide('Blockly.Events.BlockChange');
 goog.provide('Blockly.Events.Change');  // Deprecated.
 
 goog.require('Blockly.Events');
-goog.require('Blockly.Events.Abstract');
+goog.require('Blockly.Events.BlockBase');
 goog.require('goog.array');
 goog.require('goog.math.Coordinate');
 
@@ -40,7 +40,7 @@ goog.require('goog.math.Coordinate');
  * @param {?string} name Name of input or field affected, or null.
  * @param {*} oldValue Previous value of element.
  * @param {*} newValue New value of element.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.BlockBase}
  * @constructor
  */
 Blockly.Events.Change = function(block, element, name, oldValue, newValue) {
@@ -53,7 +53,7 @@ Blockly.Events.Change = function(block, element, name, oldValue, newValue) {
   this.oldValue = oldValue;
   this.newValue = newValue;
 };
-goog.inherits(Blockly.Events.Change, Blockly.Events.Abstract);
+goog.inherits(Blockly.Events.Change, Blockly.Events.BlockBase);
 
 /**
  * Class for a block change event.
@@ -62,7 +62,7 @@ goog.inherits(Blockly.Events.Change, Blockly.Events.Abstract);
  * @param {?string} name Name of input or field affected, or null.
  * @param {*} oldValue Previous value of element.
  * @param {*} newValue New value of element.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.BlockBase}
  * @constructor
  */
 Blockly.Events.BlockChange = Blockly.Events.Change;

core/events/block/create.js

@@ -29,14 +29,14 @@ goog.provide('Blockly.Events.BlockCreate');
 goog.provide('Blockly.Events.Create');  // Deprecated.
 
 goog.require('Blockly.Events');
-goog.require('Blockly.Events.Abstract');
+goog.require('Blockly.Events.BlockBase');
 goog.require('goog.array');
 goog.require('goog.math.Coordinate');
 
 /**
  * Class for a block creation event.
  * @param {Blockly.Block} block The created block.  Null for a blank event.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.BlockBase}
  * @constructor
  */
 Blockly.Events.Create = function(block) {
@@ -52,12 +52,12 @@ Blockly.Events.Create = function(block) {
   }
   this.ids = Blockly.Events.getDescendantIds_(block);
 };
-goog.inherits(Blockly.Events.Create, Blockly.Events.Abstract);
+goog.inherits(Blockly.Events.Create, Blockly.Events.BlockBase);
 
 /**
  * Class for a block creation event.
  * @param {Blockly.Block} block The created block. Null for a blank event.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.BlockBase}
  * @constructor
  */
 Blockly.Events.BlockCreate = Blockly.Events.Create;

core/events/block/delete.js

@@ -29,14 +29,14 @@ goog.provide('Blockly.Events.BlockDelete');
 goog.provide('Blockly.Events.Delete');  // Deprecated.
 
 goog.require('Blockly.Events');
-goog.require('Blockly.Events.Abstract');
+goog.require('Blockly.Events.BlockBase');
 goog.require('goog.array');
 goog.require('goog.math.Coordinate');
 
 /**
  * Class for a block deletion event.
  * @param {Blockly.Block} block The deleted block.  Null for a blank event.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.BlockBase}
  * @constructor
  */
 Blockly.Events.Delete = function(block) {
@@ -55,12 +55,12 @@ Blockly.Events.Delete = function(block) {
   }
   this.ids = Blockly.Events.getDescendantIds_(block);
 };
-goog.inherits(Blockly.Events.Delete, Blockly.Events.Abstract);
+goog.inherits(Blockly.Events.Delete, Blockly.Events.BlockBase);
 
 /**
  * Class for a block deletion event.
  * @param {Blockly.Block} block The deleted block.  Null for a blank event.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.BlockBase}
  * @constructor
  */
 Blockly.Events.BlockDelete = Blockly.Events.Delete;

core/events/block/move.js

@@ -29,14 +29,14 @@ goog.provide('Blockly.Events.BlockMove');
 goog.provide('Blockly.Events.Move');  // Deprecated.
 
 goog.require('Blockly.Events');
-goog.require('Blockly.Events.Abstract');
+goog.require('Blockly.Events.BlockBase');
 goog.require('goog.array');
 goog.require('goog.math.Coordinate');
 
 /**
  * Class for a block move event.  Created before the move.
  * @param {Blockly.Block} block The moved block.  Null for a blank event.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.BlockBase}
  * @constructor
  */
 Blockly.Events.Move = function(block) {
@@ -49,13 +49,13 @@ Blockly.Events.Move = function(block) {
   this.oldInputName = location.inputName;
   this.oldCoordinate = location.coordinate;
 };
-goog.inherits(Blockly.Events.Move, Blockly.Events.Abstract);
+goog.inherits(Blockly.Events.Move, Blockly.Events.BlockBase);
 
 
 /**
  * Class for a block move event.  Created before the move.
  * @param {Blockly.Block} block The moved block.  Null for a blank event.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.BlockBase}
  * @constructor
  */
 Blockly.Events.BlockMove = Blockly.Events.Move;

core/events/ui/ui_base.js

@@ -41,7 +41,13 @@ goog.require('goog.math.Coordinate');
  * @constructor
  */
 Blockly.Events.Ui = function(block, element, oldValue, newValue) {
-  Blockly.Events.Ui.superClass_.constructor.call(this, block);
+  if (!block) {
+    return;  // Blank event to be populated by fromJson.
+  }
+
+  Blockly.Events.Ui.superClass_.constructor.call(this);
+  this.blockId = block.id;
+  this.workspaceId = block.workspace.id;
   this.element = element;
   this.oldValue = oldValue;
   this.newValue = newValue;
@@ -65,6 +71,9 @@ Blockly.Events.Ui.prototype.toJson = function() {
   if (this.newValue !== undefined) {
     json['newValue'] = this.newValue;
   }
+  if (this.blockId) {
+    json['blockId'] = this.blockId;
+  }
   return json;
 };
 
@@ -76,4 +85,5 @@ Blockly.Events.Ui.prototype.fromJson = function(json) {
   Blockly.Events.Ui.superClass_.fromJson.call(this, json);
   this.element = json['element'];
   this.newValue = json['newValue'];
+  this.blockId = json['blockId'];
 };

core/events/variable/base.js

@@ -0,0 +1,70 @@
+/**
+ * @license
+ * Visual Blocks Editor
+ *
+ * Copyright 2018 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @fileoverview Base class for variable events.
+ * @author fenichel@google.com (Rachel Fenichel)
+ */
+'use strict';
+
+goog.provide('Blockly.Events.VarBase');
+
+goog.require('Blockly.Events');
+goog.require('Blockly.Events.Abstract');
+
+/**
+ * Abstract class for a variable event.
+ * @param {Blockly.VariableModel} variable The variable this event corresponds
+ *     to.
+ * @extends {Blockly.Events.Abstract}
+ * @constructor
+ */
+Blockly.Events.VarBase = function(variable) {
+  Blockly.Events.VarBase.superClass_.constructor.call(this);
+
+  /**
+   * The variable id for the variable this event pertains to.
+   * @type {string}
+   */
+  this.varId = variable.getId();
+  this.workspaceId = variable.workspace.id;
+};
+goog.inherits(Blockly.Events.VarBase, Blockly.Events.Abstract);
+
+/**
+ * Encode the event as JSON.
+ * @return {!Object} JSON representation.
+ */
+Blockly.Events.VarBase.prototype.toJson = function() {
+  var json = Blockly.Events.VarBase.superClass_.toJson.call(this);
+  if (this.varId) {
+    json['varId'] = this.varId;
+  }
+  return json;
+};
+
+/**
+ * Decode the JSON event.
+ * @param {!Object} json JSON representation.
+ */
+Blockly.Events.VarBase.prototype.fromJson = function(json) {
+  Blockly.Events.VarBase.superClass_.toJson.call(this);
+  this.varId = json['varId'];
+};

core/events/variable/create.js

@@ -28,7 +28,7 @@
 goog.provide('Blockly.Events.VarCreate');
 
 goog.require('Blockly.Events');
-goog.require('Blockly.Events.Abstract');
+goog.require('Blockly.Events.VarBase');
 goog.require('goog.array');
 goog.require('goog.math.Coordinate');
 
@@ -36,7 +36,7 @@ goog.require('goog.math.Coordinate');
  * Class for a variable creation event.
  * @param {Blockly.VariableModel} variable The created variable.
  *     Null for a blank event.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.VarBase}
  * @constructor
  */
 Blockly.Events.VarCreate = function(variable) {
@@ -47,7 +47,7 @@ Blockly.Events.VarCreate = function(variable) {
   this.varType = variable.type;
   this.varName = variable.name;
 };
-goog.inherits(Blockly.Events.VarCreate, Blockly.Events.Abstract);
+goog.inherits(Blockly.Events.VarCreate, Blockly.Events.VarBase);
 
 /**
  * Type of this event.

core/events/variable/delete.js

@@ -28,7 +28,7 @@
 goog.provide('Blockly.Events.VarDelete');
 
 goog.require('Blockly.Events');
-goog.require('Blockly.Events.Abstract');
+goog.require('Blockly.Events.VarBase');
 goog.require('goog.array');
 goog.require('goog.math.Coordinate');
 
@@ -36,7 +36,7 @@ goog.require('goog.math.Coordinate');
  * Class for a variable deletion event.
  * @param {Blockly.VariableModel} variable The deleted variable.
  *     Null for a blank event.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.VarBase}
  * @constructor
  */
 Blockly.Events.VarDelete = function(variable) {
@@ -47,7 +47,7 @@ Blockly.Events.VarDelete = function(variable) {
   this.varType = variable.type;
   this.varName = variable.name;
 };
-goog.inherits(Blockly.Events.VarDelete, Blockly.Events.Abstract);
+goog.inherits(Blockly.Events.VarDelete, Blockly.Events.VarBase);
 
 /**
  * Type of this event.

core/events/variable/rename.js

@@ -28,7 +28,7 @@
 goog.provide('Blockly.Events.VarRename');
 
 goog.require('Blockly.Events');
-goog.require('Blockly.Events.Abstract');
+goog.require('Blockly.Events.VarBase');
 goog.require('goog.array');
 goog.require('goog.math.Coordinate');
 
@@ -37,7 +37,7 @@ goog.require('goog.math.Coordinate');
  * @param {Blockly.VariableModel} variable The renamed variable.
  *     Null for a blank event.
  * @param {string} newName The new name the variable will be changed to.
- * @extends {Blockly.Events.Abstract}
+ * @extends {Blockly.Events.VarBase}
  * @constructor
  */
 Blockly.Events.VarRename = function(variable, newName) {
@@ -48,7 +48,7 @@ Blockly.Events.VarRename = function(variable, newName) {
   this.oldName = variable.name;
   this.newName = newName;
 };
-goog.inherits(Blockly.Events.VarRename, Blockly.Events.Abstract);
+goog.inherits(Blockly.Events.VarRename, Blockly.Events.VarBase);
 
 /**
  * Type of this event.

tests/jsunit/event_test.js

@@ -76,14 +76,14 @@ function eventTest_tearDownWithMockBlocks() {
   delete Blockly.Blocks.field_variable_test_block;
 }
 
-function test_abstract_constructor_block() {
+function test_block_base_constructor() {
   eventTest_setUpWithMockBlocks();
   setUpMockMethod(mockControl_, Blockly.utils, 'genUid', null, '1');
   try {
     var block = createSimpleTestBlock(workspace);
 
     // Here's the event we care about.
-    var event = new Blockly.Events.Abstract(block);
+    var event = new Blockly.Events.BlockBase(block);
     assertUndefined(event.varId);
     checkExactEventValues(event, {'blockId': '1', 'workspaceId': workspace.id,
       'group': '', 'recordUndo': true});
@@ -92,13 +92,13 @@ function test_abstract_constructor_block() {
   }
 }
 
-function test_abstract_constructor_variable() {
+function test_var_base_constructor() {
   eventTest_setUpWithMockBlocks();
   setUpMockMethod(mockControl_, Blockly.utils, 'genUid', null, '1');
   try {
     var variable = workspace.createVariable('name1', 'type1', 'id1');
 
-    var event = new Blockly.Events.Abstract(variable);
+    var event = new Blockly.Events.VarBase(variable);
     assertUndefined(event.blockId);
     checkExactEventValues(event, {'varId': 'id1',
       'workspaceId': workspace.id, 'group': '', 'recordUndo': true});
@@ -107,12 +107,13 @@ function test_abstract_constructor_variable() {
   }
 }
 
-function test_abstract_constructor_null() {
+function test_abstract_constructor() {
   eventTest_setUpWithMockBlocks();
   try {
-    var event = new Blockly.Events.Abstract(null);
+    var event = new Blockly.Events.Abstract();
     assertUndefined(event.blockId);
     assertUndefined(event.workspaceId);
+    assertUndefined(event.varId);
     checkExactEventValues(event, {'group': '', 'recordUndo': true});
   } finally {
     eventTest_tearDownWithMockBlocks();