include/javascript/yui3/build/event/event.js

   1 /*
   2  Copyright (c) 2009, Yahoo! Inc. All rights reserved.
   3  Code licensed under the BSD License:
   4  http://developer.yahoo.net/yui/license.txt
   5  version: 3.0.0
   6  build: 1549
   7  */
   8 (function(){var GLOBAL_ENV=YUI.Env,C=YUI.config,D=C.doc,POLL_INTERVAL=C.pollInterval||40,_ready=function(e){GLOBAL_ENV._ready();};if(!GLOBAL_ENV._ready){GLOBAL_ENV._ready=function(){if(!GLOBAL_ENV.DOMReady){GLOBAL_ENV.DOMReady=true;if(D.removeEventListener){D.removeEventListener("DOMContentLoaded",_ready,false);}}};if(navigator.userAgent.match(/MSIE/)){if(self!==self.top){document.onreadystatechange=function(){if(document.readyState=='complete'){document.onreadystatechange=null;_ready();}};}else{GLOBAL_ENV._dri=setInterval(function(){try{document.documentElement.doScroll('left');clearInterval(GLOBAL_ENV._dri);GLOBAL_ENV._dri=null;_ready();}catch(ex){}},POLL_INTERVAL);}}else{D.addEventListener("DOMContentLoaded",_ready,false);}}})();YUI.add('event-base',function(Y){(function(){var GLOBAL_ENV=YUI.Env,yready=function(){Y.fire('domready');};Y.publish('domready',{fireOnce:true});if(GLOBAL_ENV.DOMReady){yready();}else{Y.before(yready,GLOBAL_ENV,"_ready");}})();(function(){var ua=Y.UA,webkitKeymap={63232:38,63233:40,63234:37,63235:39,63276:33,63277:34,25:9,63272:46,63273:36,63275:35},resolve=function(n){try{if(n&&3==n.nodeType){n=n.parentNode;}}catch(e){return null;}
   9 return Y.one(n);};Y.DOMEventFacade=function(ev,currentTarget,wrapper){wrapper=wrapper||{};var e=ev,ot=currentTarget,d=Y.config.doc,b=d.body,x=e.pageX,y=e.pageY,c,t;this.altKey=e.altKey;this.ctrlKey=e.ctrlKey;this.metaKey=e.metaKey;this.shiftKey=e.shiftKey;this.type=e.type;this.clientX=e.clientX;this.clientY=e.clientY;if(!x&&0!==x){x=e.clientX||0;y=e.clientY||0;if(ua.ie){x+=Math.max(d.documentElement.scrollLeft,b.scrollLeft);y+=Math.max(d.documentElement.scrollTop,b.scrollTop);}}
  10 this._yuifacade=true;this._event=e;this.pageX=x;this.pageY=y;c=e.keyCode||e.charCode||0;if(ua.webkit&&(c in webkitKeymap)){c=webkitKeymap[c];}
  11 this.keyCode=c;this.charCode=c;this.button=e.which||e.button;this.which=this.button;this.target=resolve(e.target||e.srcElement);this.currentTarget=resolve(ot);t=e.relatedTarget;if(!t){if(e.type=="mouseout"){t=e.toElement;}else if(e.type=="mouseover"){t=e.fromElement;}}
  12 this.relatedTarget=resolve(t);if(e.type=="mousewheel"||e.type=="DOMMouseScroll"){this.wheelDelta=(e.detail)?(e.detail*-1):Math.round(e.wheelDelta/80)||((e.wheelDelta<0)?-1:1);}
  13 this.stopPropagation=function(){if(e.stopPropagation){e.stopPropagation();}else{e.cancelBubble=true;}
  14 wrapper.stopped=1;};this.stopImmediatePropagation=function(){if(e.stopImmediatePropagation){e.stopImmediatePropagation();}else{this.stopPropagation();}
  15 wrapper.stopped=2;};this.preventDefault=function(returnValue){if(e.preventDefault){e.preventDefault();}
  16 e.returnValue=returnValue||false;wrapper.prevented=1;};this.halt=function(immediate){if(immediate){this.stopImmediatePropagation();}else{this.stopPropagation();}
  17 this.preventDefault();};};})();(function(){Y.Env.evt.dom_wrappers={};Y.Env.evt.dom_map={};var _eventenv=Y.Env.evt,add=YUI.Env.add,remove=YUI.Env.remove,onLoad=function(){YUI.Env.windowLoaded=true;Y.Event._load();remove(window,"load",onLoad);},onUnload=function(){Y.Event._unload();remove(window,"unload",onUnload);},EVENT_READY='domready',COMPAT_ARG='~yui|2|compat~',shouldIterate=function(o){try{return(o&&typeof o!=="string"&&Y.Lang.isNumber(o.length)&&!o.tagName&&!o.alert);}catch(ex){return false;}},Event=function(){var _loadComplete=false,_retryCount=0,_avail=[],_wrappers=_eventenv.dom_wrappers,_windowLoadKey=null,_el_events=_eventenv.dom_map;return{POLL_RETRYS:1000,POLL_INTERVAL:40,lastError:null,_interval:null,_dri:null,DOMReady:false,startInterval:function(){var E=Y.Event;if(!E._interval){E._interval=setInterval(Y.bind(E._poll,E),E.POLL_INTERVAL);}},onAvailable:function(id,fn,p_obj,p_override,checkContent,compat){var a=Y.Array(id),i,availHandle;for(i=0;i<a.length;i=i+1){_avail.push({id:a[i],fn:fn,obj:p_obj,override:p_override,checkReady:checkContent,compat:compat});}
  18 _retryCount=this.POLL_RETRYS;setTimeout(Y.bind(Y.Event._poll,Y.Event),0);availHandle=new Y.EventHandle({_delete:function(){if(availHandle.handle){availHandle.handle.detach();return;}
  19 var i,j;for(i=0;i<a.length;i++){for(j=0;j<_avail.length;j++){if(a[i]===_avail[j].id){_avail.splice(j,1);}}}}});return availHandle;},onContentReady:function(id,fn,p_obj,p_override,compat){return this.onAvailable(id,fn,p_obj,p_override,true,compat);},attach:function(type,fn,el,context){return Y.Event._attach(Y.Array(arguments,0,true));},_createWrapper:function(el,type,capture,compat,facade){var ek=Y.stamp(el),key='event:'+ek+type,cewrapper;if(false===facade){key+='native';}
  20 if(capture){key+='capture';}
  21 cewrapper=_wrappers[key];if(!cewrapper){cewrapper=Y.publish(key,{silent:true,bubbles:false,contextFn:function(){cewrapper.nodeRef=cewrapper.nodeRef||Y.one(cewrapper.el);return cewrapper.nodeRef;}});cewrapper.el=el;cewrapper.key=key;cewrapper.domkey=ek;cewrapper.type=type;cewrapper.fn=function(e){cewrapper.fire(Y.Event.getEvent(e,el,(compat||(false===facade))));};cewrapper.capture=capture;if(el==Y.config.win&&type=="load"){cewrapper.fireOnce=true;_windowLoadKey=key;}
  22 _wrappers[key]=cewrapper;_el_events[ek]=_el_events[ek]||{};_el_events[ek][key]=cewrapper;add(el,type,cewrapper.fn,capture);}
  23 return cewrapper;},_attach:function(args,config){var compat,E=Y.Event,handles,oEl,cewrapper,context,fireNow=false,ret,type=args[0],fn=args[1],el=args[2]||Y.config.win,facade=config&&config.facade,capture=config&&config.capture;if(args[args.length-1]===COMPAT_ARG){compat=true;}
  24 if(!fn||!fn.call){return false;}
  25 if(shouldIterate(el)){handles=[];Y.each(el,function(v,k){args[2]=v;handles.push(E._attach(args,config));});return new Y.EventHandle(handles);}else if(Y.Lang.isString(el)){if(compat){oEl=Y.DOM.byId(el);}else{oEl=Y.Selector.query(el);switch(oEl.length){case 0:oEl=null;break;case 1:oEl=oEl[0];break;default:args[2]=oEl;return E._attach(args,config);}}
  26 if(oEl){el=oEl;}else{ret=this.onAvailable(el,function(){ret.handle=E._attach(args,config);},E,true,false,compat);return ret;}}
  27 if(!el){return false;}
  28 if(Y.Node&&el instanceof Y.Node){el=Y.Node.getDOMNode(el);}
  29 cewrapper=this._createWrapper(el,type,capture,compat,facade);if(el==Y.config.win&&type=="load"){if(YUI.Env.windowLoaded){fireNow=true;}}
  30 if(compat){args.pop();}
  31 context=args[3];ret=cewrapper._on(fn,context,(args.length>4)?args.slice(4):null);if(fireNow){cewrapper.fire();}
  32 return ret;},detach:function(type,fn,el,obj){var args=Y.Array(arguments,0,true),compat,i,l,ok,id,ce;if(args[args.length-1]===COMPAT_ARG){compat=true;}
  33 if(type&&type.detach){return type.detach();}
  34 if(typeof el=="string"){if(compat){el=Y.DOM.byId(el);}else{el=Y.Selector.query(el);l=el.length;if(l<1){el=null;}else if(l==1){el=el[0];}}}
  35 if(!el){return false;}
  36 if(shouldIterate(el)){ok=true;for(i=0,l=el.length;i<l;++i){args[2]=el[i];ok=(Y.Event.detach.apply(Y.Event,args)&&ok);}
  37 return ok;}
  38 if(!type||!fn||!fn.call){return this.purgeElement(el,false,type);}
  39 id='event:'+Y.stamp(el)+type;ce=_wrappers[id];if(ce){return ce.detach(fn);}else{return false;}},getEvent:function(e,el,noFacade){var ev=e||window.event;return(noFacade)?ev:new Y.DOMEventFacade(ev,el,_wrappers['event:'+Y.stamp(el)+e.type]);},generateId:function(el){var id=el.id;if(!id){id=Y.stamp(el);el.id=id;}
  40 return id;},_isValidCollection:shouldIterate,_load:function(e){if(!_loadComplete){_loadComplete=true;if(Y.fire){Y.fire(EVENT_READY);}
  41 Y.Event._poll();}},_poll:function(){if(this.locked){return;}
  42 if(Y.UA.ie&&!YUI.Env.DOMReady){this.startInterval();return;}
  43 this.locked=true;var tryAgain=!_loadComplete,notAvail,executeItem,i,len,item,el;if(!tryAgain){tryAgain=(_retryCount>0);}
  44 notAvail=[];executeItem=function(el,item){var context,ov=item.override;if(item.compat){if(item.override){if(ov===true){context=item.obj;}else{context=ov;}}else{context=el;}
  45 item.fn.call(context,item.obj);}else{context=item.obj||Y.one(el);item.fn.apply(context,(Y.Lang.isArray(ov))?ov:[]);}};for(i=0,len=_avail.length;i<len;++i){item=_avail[i];if(item&&!item.checkReady){el=(item.compat)?Y.DOM.byId(item.id):Y.Selector.query(item.id,null,true);if(el){executeItem(el,item);_avail[i]=null;}else{notAvail.push(item);}}}
  46 for(i=0,len=_avail.length;i<len;++i){item=_avail[i];if(item&&item.checkReady){el=(item.compat)?Y.DOM.byId(item.id):Y.Selector.query(item.id,null,true);if(el){if(_loadComplete||(el.get&&el.get('nextSibling'))||el.nextSibling){executeItem(el,item);_avail[i]=null;}}else{notAvail.push(item);}}}
  47 _retryCount=(notAvail.length===0)?0:_retryCount-1;if(tryAgain){this.startInterval();}else{clearInterval(this._interval);this._interval=null;}
  48 this.locked=false;return;},purgeElement:function(el,recurse,type){var oEl=(Y.Lang.isString(el))?Y.Selector.query(el,null,true):el,lis=this.getListeners(oEl,type),i,len,props;if(lis){for(i=0,len=lis.length;i<len;++i){props=lis[i];props.detachAll();remove(props.el,props.type,props.fn,props.capture);delete _wrappers[props.key];delete _el_events[props.domkey][props.key];}}
  49 if(recurse&&oEl&&oEl.childNodes){for(i=0,len=oEl.childNodes.length;i<len;++i){this.purgeElement(oEl.childNodes[i],recurse,type);}}},getListeners:function(el,type){var ek=Y.stamp(el,true),evts=_el_events[ek],results=[],key=(type)?'event:'+ek+type:null;if(!evts){return null;}
  50 if(key){if(evts[key]){results.push(evts[key]);}
  51 key+='native';if(evts[key]){results.push(evts[key]);}}else{Y.each(evts,function(v,k){results.push(v);});}
  52 return(results.length)?results:null;},_unload:function(e){Y.each(_wrappers,function(v,k){v.detachAll();remove(v.el,v.type,v.fn,v.capture);delete _wrappers[k];delete _el_events[v.domkey][k];});},nativeAdd:add,nativeRemove:remove};}();Y.Event=Event;if(Y.config.injected||YUI.Env.windowLoaded){onLoad();}else{add(window,"load",onLoad);}
  53 if(Y.UA.ie){Y.on(EVENT_READY,Event._poll,Event,true);}
  54 Y.on("unload",onUnload);Event.Custom=Y.CustomEvent;Event.Subscriber=Y.Subscriber;Event.Target=Y.EventTarget;Event.Handle=Y.EventHandle;Event.Facade=Y.EventFacade;Event._poll();})();Y.Env.evt.plugins.available={on:function(type,fn,id,o){var a=arguments.length>4?Y.Array(arguments,4,true):[];return Y.Event.onAvailable.call(Y.Event,id,fn,o,a);}};Y.Env.evt.plugins.contentready={on:function(type,fn,id,o){var a=arguments.length>4?Y.Array(arguments,4,true):[];return Y.Event.onContentReady.call(Y.Event,id,fn,o,a);}};},'3.0.0',{requires:['event-custom-base']});YUI.add('event-delegate',function(Y){var Event=Y.Event,Lang=Y.Lang,delegates={},specialTypes={mouseenter:"mouseover",mouseleave:"mouseout"},resolveTextNode=function(n){try{if(n&&3==n.nodeType){return n.parentNode;}}catch(e){}
  55 return n;},delegateHandler=function(delegateKey,e,el){var target=resolveTextNode((e.target||e.srcElement)),tests=delegates[delegateKey],spec,ename,matched,fn,ev;var getMatch=function(el,selector,container){var returnVal;if(!el||el===container){returnVal=false;}
  56 else{returnVal=Y.Selector.test(el,selector)?el:getMatch(el.parentNode,selector,container);}
  57 return returnVal;};for(spec in tests){if(tests.hasOwnProperty(spec)){ename=tests[spec];fn=tests.fn;matched=null;if(Y.Selector.test(target,spec,el)){matched=target;}
  58 else if(Y.Selector.test(target,((spec.replace(/,/gi," *,"))+" *"),el)){matched=getMatch(target,spec,el);}
  59 if(matched){if(!ev){ev=new Y.DOMEventFacade(e,el);ev.container=ev.currentTarget;}
  60 ev.currentTarget=Y.Node.get(matched);Y.publish(ename,{contextFn:function(){return ev.currentTarget;}});if(fn){fn(ev,ename);}
  61 else{Y.fire(ename,ev);}}}}},attach=function(type,key,element){var focusMethods={focus:Event._attachFocus,blur:Event._attachBlur},attachFn=focusMethods[type],args=[type,function(e){delegateHandler(key,(e||window.event),element);},element];if(attachFn){return attachFn(args,{capture:true,facade:false});}
  62 else{return Event._attach(args,{facade:false});}},sanitize=Y.cached(function(str){return str.replace(/[|,:]/g,'~');});Y.Env.evt.plugins.delegate={on:function(type,fn,el,delegateType,spec){var args=Y.Array(arguments,0,true);args.splice(3,1);args[0]=delegateType;return Y.delegate.apply(Y,args);}};Event.delegate=function(type,fn,el,spec){if(!spec){return false;}
  63 var args=Y.Array(arguments,0,true),element=el,availHandle;if(Lang.isString(el)){element=Y.Selector.query(el,null,true);if(!element){availHandle=Event.onAvailable(el,function(){availHandle.handle=Event.delegate.apply(Event,args);},Event,true,false);return availHandle;}}
  64 element=Y.Node.getDOMNode(element);var guid=Y.stamp(element),ename='delegate:'+guid+type+sanitize(spec),delegateKey=type+guid,delegate=delegates[delegateKey],domEventHandle,ceHandle,listeners;if(!delegate){delegate={};if(specialTypes[type]){if(!Event._fireMouseEnter){return false;}
  65 type=specialTypes[type];delegate.fn=Event._fireMouseEnter;}
  66 domEventHandle=attach(type,delegateKey,element);Y.after(function(sub){if(domEventHandle.sub==sub){delete delegates[delegateKey];Y.detachAll(ename);}},domEventHandle.evt,"_delete");delegate.handle=domEventHandle;delegates[delegateKey]=delegate;}
  67 listeners=delegate.listeners;delegate.listeners=listeners?(listeners+1):1;delegate[spec]=ename;args[0]=ename;args.splice(2,2);ceHandle=Y.on.apply(Y,args);Y.after(function(){delegate.listeners=(delegate.listeners-1);if(delegate.listeners===0){delegate.handle.detach();}},ceHandle,"detach");return ceHandle;};Y.delegate=Event.delegate;},'3.0.0',{requires:['node-base']});YUI.add('event-mousewheel',function(Y){var DOM_MOUSE_SCROLL='DOMMouseScroll',fixArgs=function(args){var a=Y.Array(args,0,true),target;if(Y.UA.gecko){a[0]=DOM_MOUSE_SCROLL;target=Y.config.win;}else{target=Y.config.doc;}
  68 if(a.length<3){a[2]=target;}else{a.splice(2,0,target);}
  69 return a;};Y.Env.evt.plugins.mousewheel={on:function(){return Y.Event._attach(fixArgs(arguments));},detach:function(){return Y.Event.detach.apply(Y.Event,fixArgs(arguments));}};},'3.0.0',{requires:['node-base']});YUI.add('event-mouseenter',function(Y){var Event=Y.Event,Lang=Y.Lang,plugins=Y.Env.evt.plugins,listeners={},eventConfig={on:function(type,fn,el){var args=Y.Array(arguments,0,true),element=el,availHandle;if(Lang.isString(el)){element=Y.all(el);if(element.size()===0){availHandle=Event.onAvailable(el,function(){availHandle.handle=Y.on.apply(Y,args);},Event,true,false);return availHandle;}}
  70 var sDOMEvent=(type==="mouseenter")?"mouseover":"mouseout",sEventName=type+":"+Y.stamp(element)+sDOMEvent,listener=listeners[sEventName],domEventHandle,ceHandle,nListeners;if(!listener){domEventHandle=Y.on(sDOMEvent,Y.rbind(Event._fireMouseEnter,Y,sEventName),element);Y.after(function(sub){if(domEventHandle.sub==sub){delete listeners[sEventName];Y.detachAll(sEventName);}},domEventHandle.evt,"_delete");listener={};listener.handle=domEventHandle;listeners[sEventName]=listener;}
  71 nListeners=listener.count;listener.count=nListeners?(nListeners+1):1;args[0]=sEventName;args.splice(2,1);ceHandle=Y.on.apply(Y,args);Y.after(function(){listener.count=(listener.count-1);if(listener.count===0){listener.handle.detach();}},ceHandle,"detach");return ceHandle;}};Event._fireMouseEnter=function(e,eventName){var relatedTarget=e.relatedTarget,currentTarget=e.currentTarget;if(currentTarget!==relatedTarget&&!currentTarget.contains(relatedTarget)){Y.publish(eventName,{contextFn:function(){return currentTarget;}});Y.fire(eventName,e);}};plugins.mouseenter=eventConfig;plugins.mouseleave=eventConfig;},'3.0.0',{requires:['node-base']});YUI.add('event-key',function(Y){Y.Env.evt.plugins.key={on:function(type,fn,id,spec,o){var a=Y.Array(arguments,0,true),parsed,etype,criteria,ename;parsed=spec&&spec.split(':');if(!spec||spec.indexOf(':')==-1||!parsed[1]){a[0]='key'+((parsed&&parsed[0])||'press');return Y.on.apply(Y,a);}
  72 etype=parsed[0];criteria=(parsed[1])?parsed[1].split(/,|\+/):null;ename=(Y.Lang.isString(id)?id:Y.stamp(id))+spec;ename=ename.replace(/,/g,'_');if(!Y.getEvent(ename)){Y.on(type+etype,function(e){var passed=false,failed=false,i,crit,critInt;for(i=0;i<criteria.length;i=i+1){crit=criteria[i];critInt=parseInt(crit,10);if(Y.Lang.isNumber(critInt)){if(e.charCode===critInt){passed=true;}else{failed=true;}}else if(passed||!failed){passed=(e[crit+'Key']);failed=!passed;}}
  73 if(passed){Y.fire(ename,e);}},id);}
  74 a.splice(2,2);a[0]=ename;return Y.on.apply(Y,a);}};},'3.0.0',{requires:['node-base']});YUI.add('event-focus',function(Y){(function(){var UA=Y.UA,Event=Y.Event,plugins=Y.Env.evt.plugins,ie=UA.ie,bUseMutation=(UA.opera||UA.webkit),eventNames={focus:(ie?'focusin':(bUseMutation?'DOMFocusIn':'focus')),blur:(ie?'focusout':(bUseMutation?'DOMFocusOut':'blur'))},CAPTURE_CONFIG={capture:(UA.gecko?true:false)},attach=function(args,config){var a=Y.Array(args,0,true);a[0]=eventNames[a[0]];return Event._attach(a,config);},eventAdapter={on:function(){return attach(arguments,CAPTURE_CONFIG);}};Event._attachFocus=attach;Event._attachBlur=attach;plugins.focus=eventAdapter;plugins.blur=eventAdapter;})();},'3.0.0',{requires:['node-base']});YUI.add('event-resize',function(Y){(function(){var detachHandle,timerHandle,CE_NAME='window:resize',handler=function(e){if(Y.UA.gecko){Y.fire(CE_NAME,e);}else{if(timerHandle){timerHandle.cancel();}
  75 timerHandle=Y.later(Y.config.windowResizeDelay||40,Y,function(){Y.fire(CE_NAME,e);});}};Y.Env.evt.plugins.windowresize={on:function(type,fn){if(!detachHandle){detachHandle=Y.Event._attach(['resize',handler]);}
  76 var a=Y.Array(arguments,0,true);a[0]=CE_NAME;return Y.on.apply(Y,a);}};})();},'3.0.0',{requires:['node-base']});YUI.add('event',function(Y){},'3.0.0',{use:['event-base','event-delegate','event-mousewheel','event-mouseenter','event-key','event-focus','event-resize']});