2 Copyright (c) 2009, Yahoo! Inc. All rights reserved.
3 Code licensed under the BSD License:
4 http://developer.yahoo.net/yui/license.txt
8 YUI.add('event-custom-base',function(Y){Y.Env.evt={handles:{},plugins:{}};(function(){var BEFORE=0,AFTER=1;Y.Do={objs:{},before:function(fn,obj,sFn,c){var f=fn,a;if(c){a=[fn,c].concat(Y.Array(arguments,4,true));f=Y.rbind.apply(Y,a);}
9 return this._inject(BEFORE,f,obj,sFn);},after:function(fn,obj,sFn,c){var f=fn,a;if(c){a=[fn,c].concat(Y.Array(arguments,4,true));f=Y.rbind.apply(Y,a);}
10 return this._inject(AFTER,f,obj,sFn);},_inject:function(when,fn,obj,sFn){var id=Y.stamp(obj),o,sid;if(!this.objs[id]){this.objs[id]={};}
11 o=this.objs[id];if(!o[sFn]){o[sFn]=new Y.Do.Method(obj,sFn);obj[sFn]=function(){return o[sFn].exec.apply(o[sFn],arguments);};}
12 sid=id+Y.stamp(fn)+sFn;o[sFn].register(sid,fn,when);return new Y.EventHandle(o[sFn],sid);},detach:function(handle){if(handle.detach){handle.detach();}},_unload:function(e,me){}};Y.Do.Method=function(obj,sFn){this.obj=obj;this.methodName=sFn;this.method=obj[sFn];this.before={};this.after={};};Y.Do.Method.prototype.register=function(sid,fn,when){if(when){this.after[sid]=fn;}else{this.before[sid]=fn;}};Y.Do.Method.prototype._delete=function(sid){delete this.before[sid];delete this.after[sid];};Y.Do.Method.prototype.exec=function(){var args=Y.Array(arguments,0,true),i,ret,newRet,bf=this.before,af=this.after,prevented=false;for(i in bf){if(bf.hasOwnProperty(i)){ret=bf[i].apply(this.obj,args);if(ret){switch(ret.constructor){case Y.Do.Halt:return ret.retVal;case Y.Do.AlterArgs:args=ret.newArgs;break;case Y.Do.Prevent:prevented=true;break;default:}}}}
13 if(!prevented){ret=this.method.apply(this.obj,args);}
14 for(i in af){if(af.hasOwnProperty(i)){newRet=af[i].apply(this.obj,args);if(newRet&&newRet.constructor==Y.Do.Halt){return newRet.retVal;}else if(newRet&&newRet.constructor==Y.Do.AlterReturn){ret=newRet.newRetVal;}}}
15 return ret;};Y.Do.AlterArgs=function(msg,newArgs){this.msg=msg;this.newArgs=newArgs;};Y.Do.AlterReturn=function(msg,newRetVal){this.msg=msg;this.newRetVal=newRetVal;};Y.Do.Halt=function(msg,retVal){this.msg=msg;this.retVal=retVal;};Y.Do.Prevent=function(msg){this.msg=msg;};Y.Do.Error=Y.Do.Halt;})();var AFTER='after',CONFIGS=['broadcast','bubbles','context','contextFn','currentTarget','defaultFn','details','emitFacade','fireOnce','host','preventable','preventedFn','queuable','silent','stoppedFn','target','type'],YUI3_SIGNATURE=9,YUI_LOG='yui:log';Y.EventHandle=function(evt,sub){this.evt=evt;this.sub=sub;};Y.EventHandle.prototype={detach:function(){var evt=this.evt,i;if(evt){if(Y.Lang.isArray(evt)){for(i=0;i<evt.length;i++){evt[i].detach();}}else{evt._delete(this.sub);}}}};Y.CustomEvent=function(type,o){o=o||{};this.id=Y.stamp(this);this.type=type;this.context=Y;this.logSystem=(type==YUI_LOG);this.silent=this.logSystem;this.subscribers={};this.afters={};this.preventable=true;this.bubbles=true;this.signature=YUI3_SIGNATURE;this.applyConfig(o,true);};Y.CustomEvent.prototype={applyConfig:function(o,force){if(o){Y.mix(this,o,force,CONFIGS);}},_on:function(fn,context,args,when){if(!fn){this.log("Invalid callback for CE: "+this.type);}
16 var s=new Y.Subscriber(fn,context,args,when);if(this.fireOnce&&this.fired){Y.later(0,this,Y.bind(this._notify,this,s,this.firedWith));}
17 if(when==AFTER){this.afters[s.id]=s;this.hasAfters=true;}else{this.subscribers[s.id]=s;this.hasSubscribers=true;}
18 return new Y.EventHandle(this,s);},subscribe:function(fn,context){var a=(arguments.length>2)?Y.Array(arguments,2,true):null;return this._on(fn,context,a,true);},on:function(fn,context){var a=(arguments.length>2)?Y.Array(arguments,2,true):null;return this._on(fn,context,a,true);},after:function(fn,context){var a=(arguments.length>2)?Y.Array(arguments,2,true):null;return this._on(fn,context,a,AFTER);},detach:function(fn,context){if(fn&&fn.detach){return fn.detach();}
19 var found=0,subs=this.subscribers,i,s;for(i in subs){if(subs.hasOwnProperty(i)){s=subs[i];if(s&&(!fn||fn===s.fn)){this._delete(s);found++;}}}
20 return found;},unsubscribe:function(){return this.detach.apply(this,arguments);},_notify:function(s,args,ef){this.log(this.type+"->"+"sub: "+s.id);var ret;ret=s.notify(args,this);if(false===ret||this.stopped>1){this.log(this.type+" cancelled by subscriber");return false;}
21 return true;},log:function(msg,cat){if(!this.silent){}},fire:function(){if(this.fireOnce&&this.fired){this.log('fireOnce event: '+this.type+' already fired');return true;}else{var args=Y.Array(arguments,0,true);this.fired=true;this.firedWith=args;if(this.emitFacade){return this.fireComplex(args);}else{return this.fireSimple(args);}}},fireSimple:function(args){if(this.hasSubscribers||this.hasAfters){this._procSubs(Y.merge(this.subscribers,this.afters),args);}
22 this._broadcast(args);return this.stopped?false:true;},fireComplex:function(args){args[0]=args[0]||{};return this.fireSimple(args);},_procSubs:function(subs,args,ef){var s,i;for(i in subs){if(subs.hasOwnProperty(i)){s=subs[i];if(s&&s.fn){if(false===this._notify(s,args,ef)){this.stopped=2;}
23 if(this.stopped==2){return false;}}}}
24 return true;},_broadcast:function(args){if(!this.stopped&&this.broadcast){var a=Y.Array(args);a.unshift(this.type);if(this.host!==Y){Y.fire.apply(Y,a);}
25 if(this.broadcast==2){Y.Global.fire.apply(Y.Global,a);}}},unsubscribeAll:function(){return this.detachAll.apply(this,arguments);},detachAll:function(){return this.detach();},_delete:function(s){if(s){delete s.fn;delete s.context;delete this.subscribers[s.id];delete this.afters[s.id];}}};Y.Subscriber=function(fn,context,args){this.fn=fn;this.context=context;this.id=Y.stamp(this);this.args=args;this.events=null;};Y.Subscriber.prototype={_notify:function(c,args,ce){var a=this.args,ret;switch(ce.signature){case 0:ret=this.fn.call(c,ce.type,args,c);break;case 1:ret=this.fn.call(c,args[0]||null,c);break;default:if(a||args){args=args||[];a=(a)?args.concat(a):args;ret=this.fn.apply(c,a);}else{ret=this.fn.call(c);}}
26 return ret;},notify:function(args,ce){var c=this.context,ret=true;if(!c){c=(ce.contextFn)?ce.contextFn():ce.context;}
27 if(Y.config.throwFail){ret=this._notify(c,args,ce);}else{try{ret=this._notify(c,args,ce);}catch(e){Y.error(this+' failed: '+e.message,e);}}
28 return ret;},contains:function(fn,context){if(context){return((this.fn==fn)&&this.context==context);}else{return(this.fn==fn);}}};(function(){var L=Y.Lang,PREFIX_DELIMITER=':',CATEGORY_DELIMITER='|',AFTER_PREFIX='~AFTER~',_getType=Y.cached(function(type,pre){if(!pre||!L.isString(type)||type.indexOf(PREFIX_DELIMITER)>-1){return type;}
29 return pre+PREFIX_DELIMITER+type;}),_parseType=Y.cached(function(type,pre){var t=type,detachcategory,after,i;if(!L.isString(t)){return t;}
30 i=t.indexOf(AFTER_PREFIX);if(i>-1){after=true;t=t.substr(AFTER_PREFIX.length);}
31 i=t.indexOf(CATEGORY_DELIMITER);if(i>-1){detachcategory=t.substr(0,(i));t=t.substr(i+1);if(t=='*'){t=null;}}
32 return[detachcategory,(pre)?_getType(t,pre):t,after,t];}),ET=function(opts){var o=(L.isObject(opts))?opts:{};this._yuievt=this._yuievt||{id:Y.guid(),events:{},targets:{},config:o,chain:('chain'in o)?o.chain:Y.config.chain,defaults:{context:o.context||this,host:this,emitFacade:o.emitFacade,fireOnce:o.fireOnce,queuable:o.queuable,broadcast:o.broadcast,bubbles:('bubbles'in o)?o.bubbles:true}};};ET.prototype={on:function(type,fn,context,x){var parts=_parseType(type,this._yuievt.config.prefix),f,c,args,ret,ce,detachcategory,handle,store=Y.Env.evt.handles,after,adapt,shorttype,Node=Y.Node,n,domevent;if(L.isObject(type)){if(L.isFunction(type)){return Y.Do.before.apply(Y.Do,arguments);}
33 f=fn;c=context;args=Y.Array(arguments,0,true);ret={};after=type._after;delete type._after;Y.each(type,function(v,k){if(v){f=v.fn||((Y.Lang.isFunction(v))?v:f);c=v.context||c;}
34 args[0]=(after)?AFTER_PREFIX+k:k;args[1]=f;args[2]=c;ret[k]=this.on.apply(this,args);},this);return(this._yuievt.chain)?this:new Y.EventHandle(ret);}
35 detachcategory=parts[0];after=parts[2];shorttype=parts[3];if(Node&&(this instanceof Node)&&(shorttype in Node.DOM_EVENTS)){args=Y.Array(arguments,0,true);args.splice(2,0,Node.getDOMNode(this));return Y.on.apply(Y,args);}
36 type=parts[1];if(this instanceof YUI){adapt=Y.Env.evt.plugins[type];args=Y.Array(arguments,0,true);args[0]=shorttype;if(Node){n=args[2];if(n instanceof Y.NodeList){n=Y.NodeList.getDOMNodes(n);}else if(n instanceof Node){n=Node.getDOMNode(n);}
37 domevent=(shorttype in Node.DOM_EVENTS);if(domevent){args[2]=n;}}
38 if(adapt){handle=adapt.on.apply(Y,args);}else if((!type)||domevent){handle=Y.Event._attach(args);}}
39 if(!handle){ce=this._yuievt.events[type]||this.publish(type);handle=ce._on(fn,context,(arguments.length>3)?Y.Array(arguments,3,true):null,(after)?'after':true);}
40 if(detachcategory){store[detachcategory]=store[detachcategory]||{};store[detachcategory][type]=store[detachcategory][type]||[];store[detachcategory][type].push(handle);}
41 return(this._yuievt.chain)?this:handle;},subscribe:function(){return this.on.apply(this,arguments);},detach:function(type,fn,context){var evts=this._yuievt.events,i,ret,Node=Y.Node,isNode=(this instanceof Node);if(!type&&(this!==Y)){for(i in evts){if(evts.hasOwnProperty(i)){ret=evts[i].detach(fn,context);}}
42 if(isNode){Y.Event.purgeElement(Node.getDOMNode(this));}
44 var parts=_parseType(type,this._yuievt.config.prefix),detachcategory=L.isArray(parts)?parts[0]:null,shorttype=(parts)?parts[3]:null,handle,adapt,store=Y.Env.evt.handles,cat,args,ce,keyDetacher=function(lcat,ltype){var handles=lcat[ltype];if(handles){while(handles.length){handle=handles.pop();handle.detach();}}};if(detachcategory){cat=store[detachcategory];type=parts[1];if(cat){if(type){keyDetacher(cat,type);}else{for(i in cat){if(cat.hasOwnProperty(i)){keyDetacher(cat,i);}}}
45 return(this._yuievt.chain)?this:true;}}else if(L.isObject(type)&&type.detach){ret=type.detach();return(this._yuievt.chain)?this:ret;}else if(isNode&&((!shorttype)||(shorttype in Node.DOM_EVENTS))){args=Y.Array(arguments,0,true);args[2]=Node.getDOMNode(this);return Y.detach.apply(Y,args);}
46 adapt=Y.Env.evt.plugins[shorttype];if(this instanceof YUI){args=Y.Array(arguments,0,true);if(adapt&&adapt.detach){return adapt.detach.apply(Y,args);}else if(!type||(!adapt&&Node&&(type in Node.DOM_EVENTS))){args[0]=type;return Y.Event.detach.apply(Y.Event,args);}}
47 ce=evts[type];if(ce){ret=ce.detach(fn,context);}
48 return(this._yuievt.chain)?this:ret;},unsubscribe:function(){return this.detach.apply(this,arguments);},detachAll:function(type){return this.detach(type);},unsubscribeAll:function(){return this.detachAll.apply(this,arguments);},publish:function(type,opts){var events,ce,ret,pre=this._yuievt.config.prefix;type=(pre)?_getType(type,pre):type;if(L.isObject(type)){ret={};Y.each(type,function(v,k){ret[k]=this.publish(k,v||opts);},this);return ret;}
49 events=this._yuievt.events;ce=events[type];if(ce){if(opts){ce.applyConfig(opts,true);}}else{ce=new Y.CustomEvent(type,(opts)?Y.mix(opts,this._yuievt.defaults):this._yuievt.defaults);events[type]=ce;}
50 return events[type];},addTarget:function(o){this._yuievt.targets[Y.stamp(o)]=o;this._yuievt.hasTargets=true;},removeTarget:function(o){delete this._yuievt.targets[Y.stamp(o)];},fire:function(type){var typeIncluded=L.isString(type),t=(typeIncluded)?type:(type&&type.type),ce,a,ret,pre=this._yuievt.config.prefix;t=(pre)?_getType(t,pre):t;ce=this.getEvent(t,true);if(!ce){if(this._yuievt.hasTargets){a=(typeIncluded)?arguments:Y.Array(arguments,0,true).unshift(t);return this.bubble(null,a,this);}
51 ret=true;}else{a=Y.Array(arguments,(typeIncluded)?1:0,true);ret=ce.fire.apply(ce,a);ce.target=null;}
52 return(this._yuievt.chain)?this:ret;},getEvent:function(type,prefixed){var pre,e;if(!prefixed){pre=this._yuievt.config.prefix;type=(pre)?_getType(type,pre):type;}
53 e=this._yuievt.events;return(e&&type in e)?e[type]:null;},after:function(type,fn){var a=Y.Array(arguments,0,true);switch(L.type(type)){case'function':return Y.Do.after.apply(Y.Do,arguments);case'object':a[0]._after=true;break;default:a[0]=AFTER_PREFIX+type;}
54 return this.on.apply(this,a);},before:function(){return this.on.apply(this,arguments);}};Y.EventTarget=ET;Y.mix(Y,ET.prototype,false,false,{bubbles:false});ET.call(Y);YUI.Env.globalEvents=YUI.Env.globalEvents||new ET();Y.Global=YUI.Env.globalEvents;})();},'3.0.0',{requires:['oop']});YUI.add('event-custom-complex',function(Y){(function(){var FACADE,FACADE_KEYS,CEProto=Y.CustomEvent.prototype;Y.EventFacade=function(e,currentTarget){e=e||{};this.details=e.details;this.type=e.type;this.target=e.target;this.currentTarget=currentTarget;this.relatedTarget=e.relatedTarget;this.stopPropagation=function(){e.stopPropagation();};this.stopImmediatePropagation=function(){e.stopImmediatePropagation();};this.preventDefault=function(){e.preventDefault();};this.halt=function(immediate){e.halt(immediate);};};CEProto.fireComplex=function(args){var es=Y.Env._eventstack,ef,q,queue,ce,ret,events;if(es){if(this.queuable&&this.type!=es.next.type){this.log('queue '+this.type);es.queue.push([this,args]);return true;}}else{Y.Env._eventstack={id:this.id,next:this,silent:this.silent,stopped:0,prevented:0,queue:[]};es=Y.Env._eventstack;}
55 this.stopped=0;this.prevented=0;this.target=this.target||this.host;events=new Y.EventTarget({fireOnce:true,context:this.host});this.events=events;if(this.preventedFn){events.on('prevented',this.preventedFn);}
56 if(this.stoppedFn){events.on('stopped',this.stoppedFn);}
57 this.currentTarget=this.host||this.currentTarget;this.details=args.slice();this.log("Firing "+this.type);this._facade=null;ef=this._getFacade(args);if(Y.Lang.isObject(args[0])){args[0]=ef;}else{args.unshift(ef);}
58 if(this.hasSubscribers){this._procSubs(Y.merge(this.subscribers),args,ef);}
59 if(this.bubbles&&this.host&&this.host.bubble&&!this.stopped){es.stopped=0;es.prevented=0;ret=this.host.bubble(this);this.stopped=Math.max(this.stopped,es.stopped);this.prevented=Math.max(this.prevented,es.prevented);}
60 if(this.defaultFn&&!this.prevented){this.defaultFn.apply(this.host||this,args);}
61 this._broadcast(args);if(this.hasAfters&&!this.prevented&&this.stopped<2){this._procSubs(Y.merge(this.afters),args,ef);}
62 if(es.id===this.id){queue=es.queue;while(queue.length){q=queue.pop();ce=q[0];es.stopped=0;es.prevented=0;es.next=ce;ce.fire.apply(ce,q[1]);}
63 Y.Env._eventstack=null;}
64 return this.stopped?false:true;};CEProto._getFacade=function(){var ef=this._facade,o,o2,args=this.details;if(!ef){ef=new Y.EventFacade(this,this.currentTarget);}
65 o=args&&args[0];if(Y.Lang.isObject(o,true)){o2={};Y.mix(o2,ef,true,FACADE_KEYS);Y.mix(ef,o,true);Y.mix(ef,o2,true,FACADE_KEYS);}
66 ef.details=this.details;ef.target=this.target;ef.currentTarget=this.currentTarget;ef.stopped=0;ef.prevented=0;this._facade=ef;return this._facade;};CEProto.stopPropagation=function(){this.stopped=1;Y.Env._eventstack.stopped=1;this.events.fire('stopped',this);};CEProto.stopImmediatePropagation=function(){this.stopped=2;Y.Env._eventstack.stopped=2;this.events.fire('stopped',this);};CEProto.preventDefault=function(){if(this.preventable){this.prevented=1;Y.Env._eventstack.prevented=1;this.events.fire('prevented',this);}};CEProto.halt=function(immediate){if(immediate){this.stopImmediatePropagation();}else{this.stopPropagation();}
67 this.preventDefault();};Y.EventTarget.prototype.bubble=function(evt,args,target){var targs=this._yuievt.targets,ret=true,t,type,ce,i,bc;if(!evt||((!evt.stopped)&&targs)){for(i in targs){if(targs.hasOwnProperty(i)){t=targs[i];type=evt&&evt.type;ce=t.getEvent(type,true);if(!ce){if(t._yuievt.hasTargets){t.bubble.call(t,evt,args,target);}}else{ce.target=target||(evt&&evt.target)||this;ce.currentTarget=t;bc=ce.broadcast;ce.broadcast=false;ret=ret&&ce.fire.apply(ce,args||evt.details);ce.broadcast=bc;if(ce.stopped){break;}}}}}
68 return ret;};FACADE=new Y.EventFacade();FACADE_KEYS=Y.Object.keys(FACADE);})();},'3.0.0',{requires:['event-custom-base']});YUI.add('event-custom',function(Y){},'3.0.0',{use:['event-custom-base','event-custom-complex']});
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