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<pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.0.3
- * Copyright(c) 2006-2009 Ext JS, LLC
+ * Ext JS Library 3.2.0
+ * Copyright(c) 2006-2010 Ext JS, Inc.
* licensing@extjs.com
* http://www.extjs.com/license
*/
* See {@link Ext.EventObject} for more details on normalized event objects.
* @singleton
*/
+
Ext.EventManager = function(){
- var docReadyEvent,
- docReadyProcId,
- docReadyState = false,
+ var docReadyEvent,
+ docReadyProcId,
+ docReadyState = false,
+ DETECT_NATIVE = Ext.isGecko || Ext.isWebKit || Ext.isSafari,
E = Ext.lib.Event,
D = Ext.lib.Dom,
DOC = document,
WINDOW = window,
- IEDEFERED = "ie-deferred-loader",
DOMCONTENTLOADED = "DOMContentLoaded",
- elHash = {},
- propRe = /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate)$/;
+ COMPLETE = 'complete',
+ propRe = /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate)$/,
+ /*
+ * This cache is used to hold special js objects, the document and window, that don't have an id. We need to keep
+ * a reference to them so we can look them up at a later point.
+ */
+ specialElCache = [];
+
+ function getId(el){
+ var id = false,
+ i = 0,
+ len = specialElCache.length,
+ id = false,
+ skip = false,
+ o;
+ if(el){
+ if(el.getElementById || el.navigator){
+ // look up the id
+ for(; i < len; ++i){
+ o = specialElCache[i];
+ if(o.el === el){
+ id = o.id;
+ break;
+ }
+ }
+ if(!id){
+ // for browsers that support it, ensure that give the el the same id
+ id = Ext.id(el);
+ specialElCache.push({
+ id: id,
+ el: el
+ });
+ skip = true;
+ }
+ }else{
+ id = Ext.id(el);
+ }
+ if(!Ext.elCache[id]){
+ Ext.Element.addToCache(new Ext.Element(el), id);
+ if(skip){
+ Ext.elCache[id].skipGC = true;
+ }
+ }
+ }
+ return id;
+ };
/// There is some jquery work around stuff here that isn't needed in Ext Core.
- function addListener(el, ename, fn, wrap, scope){
- var id = Ext.id(el),
- es = elHash[id] = elHash[id] || {};
-
- (es[ename] = es[ename] || []).push([fn, wrap, scope]);
- E.on(el, ename, wrap);
+ function addListener(el, ename, fn, task, wrap, scope){
+ el = Ext.getDom(el);
+ var id = getId(el),
+ es = Ext.elCache[id].events,
+ wfn;
+
+ wfn = E.on(el, ename, wrap);
+ es[ename] = es[ename] || [];
+
+ /* 0 = Original Function,
+ 1 = Event Manager Wrapped Function,
+ 2 = Scope,
+ 3 = Adapter Wrapped Function,
+ 4 = Buffered Task
+ */
+ es[ename].push([fn, wrap, scope, wfn, task]);
// this is a workaround for jQuery and should somehow be removed from Ext Core in the future
// without breaking ExtJS.
- if(ename == "mousewheel" && el.addEventListener){ // workaround for jQuery
+
+ // workaround for jQuery
+ if(el.addEventListener && ename == "mousewheel"){
var args = ["DOMMouseScroll", wrap, false];
el.addEventListener.apply(el, args);
- E.on(window, 'unload', function(){
- el.removeEventListener.apply(el, args);
+ Ext.EventManager.addListener(WINDOW, 'unload', function(){
+ el.removeEventListener.apply(el, args);
});
}
- if(ename == "mousedown" && el == document){ // fix stopped mousedowns on the document
+
+ // fix stopped mousedowns on the document
+ if(el == DOC && ename == "mousedown"){
Ext.EventManager.stoppedMouseDownEvent.addListener(wrap);
}
};
-
- function fireDocReady(){
- if(!docReadyState){
- Ext.isReady = docReadyState = true;
+
+ function doScrollChk(){
+ /* Notes:
+ 'doScroll' will NOT work in a IFRAME/FRAMESET.
+ The method succeeds but, a DOM query done immediately after -- FAILS.
+ */
+ if(window != top){
+ return false;
+ }
+
+ try{
+ DOC.documentElement.doScroll('left');
+ }catch(e){
+ return false;
+ }
+
+ fireDocReady();
+ return true;
+ }
+ <div id="method-Ext.EventManager-function"></div>/**
+ * @return {Boolean} True if the document is in a 'complete' state (or was determined to
+ * be true by other means). If false, the state is evaluated again until canceled.
+ */
+ function checkReadyState(e){
+
+ if(Ext.isIE && doScrollChk()){
+ return true;
+ }
+ if(DOC.readyState == COMPLETE){
+ fireDocReady();
+ return true;
+ }
+ docReadyState || (docReadyProcId = setTimeout(arguments.callee, 2));
+ return false;
+ }
+
+ var styles;
+ function checkStyleSheets(e){
+ styles || (styles = Ext.query('style, link[rel=stylesheet]'));
+ if(styles.length == DOC.styleSheets.length){
+ fireDocReady();
+ return true;
+ }
+ docReadyState || (docReadyProcId = setTimeout(arguments.callee, 2));
+ return false;
+ }
+
+ function OperaDOMContentLoaded(e){
+ DOC.removeEventListener(DOMCONTENTLOADED, arguments.callee, false);
+ checkStyleSheets();
+ }
+
+ function fireDocReady(e){
+ if(!docReadyState){
+ docReadyState = true; //only attempt listener removal once
+
if(docReadyProcId){
- clearInterval(docReadyProcId);
+ clearTimeout(docReadyProcId);
}
- if(Ext.isGecko || Ext.isOpera) {
+ if(DETECT_NATIVE) {
DOC.removeEventListener(DOMCONTENTLOADED, fireDocReady, false);
}
- if(Ext.isIE){
- var defer = DOC.getElementById(IEDEFERED);
- if(defer){
- defer.onreadystatechange = null;
- defer.parentNode.removeChild(defer);
- }
- }
- if(docReadyEvent){
- docReadyEvent.fire();
- docReadyEvent.clearListeners();
+ if(Ext.isIE && checkReadyState.bindIE){ //was this was actually set ??
+ DOC.detachEvent('onreadystatechange', checkReadyState);
}
+ E.un(WINDOW, "load", arguments.callee);
}
+ if(docReadyEvent && !Ext.isReady){
+ Ext.isReady = true;
+ docReadyEvent.fire();
+ docReadyEvent.listeners = [];
+ }
+
};
function initDocReady(){
- var COMPLETE = "complete";
-
- docReadyEvent = new Ext.util.Event();
- if (Ext.isGecko || Ext.isOpera) {
+ docReadyEvent || (docReadyEvent = new Ext.util.Event());
+ if (DETECT_NATIVE) {
DOC.addEventListener(DOMCONTENTLOADED, fireDocReady, false);
- } else if (Ext.isIE){
- DOC.write("<s"+'cript id=' + IEDEFERED + ' defer="defer" src="/'+'/:"></s'+"cript>");
- DOC.getElementById(IEDEFERED).onreadystatechange = function(){
- if(this.readyState == COMPLETE){
- fireDocReady();
- }
- };
- } else if (Ext.isWebKit){
- docReadyProcId = setInterval(function(){
- if(DOC.readyState == COMPLETE) {
- fireDocReady();
- }
- }, 10);
+ }
+ /*
+ * Handle additional (exceptional) detection strategies here
+ */
+ if (Ext.isIE){
+ //Use readystatechange as a backup AND primary detection mechanism for a FRAME/IFRAME
+ //See if page is already loaded
+ if(!checkReadyState()){
+ checkReadyState.bindIE = true;
+ DOC.attachEvent('onreadystatechange', checkReadyState);
+ }
+
+ }else if(Ext.isOpera ){
+ /* Notes:
+ Opera needs special treatment needed here because CSS rules are NOT QUITE
+ available after DOMContentLoaded is raised.
+ */
+
+ //See if page is already loaded and all styleSheets are in place
+ (DOC.readyState == COMPLETE && checkStyleSheets()) ||
+ DOC.addEventListener(DOMCONTENTLOADED, OperaDOMContentLoaded, false);
+
+ }else if (Ext.isWebKit){
+ //Fallback for older Webkits without DOMCONTENTLOADED support
+ checkReadyState();
}
// no matter what, make sure it fires on load
E.on(WINDOW, "load", fireDocReady);
h.apply(this, args);
}
};
- };
-
- function createBuffered(h, o){
- var task = new Ext.util.DelayedTask(h);
+ };
+
+ function createBuffered(h, o, task){
return function(e){
- // create new event object impl so new events don't wipe out properties
+ // create new event object impl so new events don't wipe out properties
task.delay(o.buffer, h, null, [new Ext.EventObjectImpl(e)]);
};
};
};
};
- function createDelayed(h, o){
+ function createDelayed(h, o, fn){
return function(e){
- // create new event object impl so new events don't wipe out properties
- e = new Ext.EventObjectImpl(e);
- setTimeout(function(){
- h(e);
- }, o.delay || 10);
+ var task = new Ext.util.DelayedTask(h);
+ if(!fn.tasks) {
+ fn.tasks = [];
+ }
+ fn.tasks.push(task);
+ task.delay(o.delay || 10, h, null, [new Ext.EventObjectImpl(e)]);
};
};
function listen(element, ename, opt, fn, scope){
var o = !Ext.isObject(opt) ? {} : opt,
- el = Ext.getDom(element);
-
- fn = fn || o.fn;
+ el = Ext.getDom(element), task;
+
+ fn = fn || o.fn;
scope = scope || o.scope;
-
+
if(!el){
throw "Error listening for \"" + ename + '\". Element "' + element + '" doesn\'t exist.';
}
function h(e){
// prevent errors while unload occurring
- if(!Ext){// !window[xname]){ ==> can't we do this?
+ if(!Ext){// !window[xname]){ ==> can't we do this?
return;
}
e = Ext.EventObject.setEvent(e);
}
} else {
t = e.target;
- }
+ }
if (o.stopEvent) {
e.stopEvent();
}
if (o.normalized) {
e = e.browserEvent;
}
-
+
fn.call(scope || el, e, t, o);
};
if(o.target){
h = createTargeted(h, o);
}
if(o.delay){
- h = createDelayed(h, o);
+ h = createDelayed(h, o, fn);
}
if(o.single){
h = createSingle(h, el, ename, fn, scope);
}
if(o.buffer){
- h = createBuffered(h, o);
+ task = new Ext.util.DelayedTask(h);
+ h = createBuffered(h, o, task);
}
- addListener(el, ename, fn, h, scope);
+ addListener(el, ename, fn, task, h, scope);
return h;
};
* </ul><br>
* <p>See {@link Ext.Element#addListener} for examples of how to use these options.</p>
*/
- addListener : function(element, eventName, fn, scope, options){
- if(Ext.isObject(eventName)){
+ addListener : function(element, eventName, fn, scope, options){
+ if(Ext.isObject(eventName)){
var o = eventName, e, val;
for(e in o){
val = o[e];
- if(!propRe.test(e)){
+ if(!propRe.test(e)){
if(Ext.isFunction(val)){
// shared options
listen(element, e, o, val, o.scope);
listen(element, eventName, options, fn, scope);
}
},
-
+
<div id="method-Ext.EventManager-removeListener"></div>/**
* Removes an event handler from an element. The shorthand version {@link #un} is equivalent. Typically
* you will use {@link Ext.Element#removeListener} directly on an Element in favor of calling this version.
* @param {Object} scope If a scope (<b><code>this</code></b> reference) was specified when the listener was added,
* then this must refer to the same object.
*/
- removeListener : function(element, eventName, fn, scope){
- var el = Ext.getDom(element),
- id = Ext.id(el),
- wrap;
-
- Ext.each((elHash[id] || {})[eventName], function (v,i,a) {
- if (Ext.isArray(v) && v[0] == fn && (!scope || v[2] == scope)) {
- E.un(el, eventName, wrap = v[1]);
- a.splice(i,1);
- return false;
- }
- });
+ removeListener : function(el, eventName, fn, scope){
+ el = Ext.getDom(el);
+ var id = getId(el),
+ f = el && (Ext.elCache[id].events)[eventName] || [],
+ wrap, i, l, k, len, fnc;
+
+ for (i = 0, len = f.length; i < len; i++) {
+
+ /* 0 = Original Function,
+ 1 = Event Manager Wrapped Function,
+ 2 = Scope,
+ 3 = Adapter Wrapped Function,
+ 4 = Buffered Task
+ */
+ if (Ext.isArray(fnc = f[i]) && fnc[0] == fn && (!scope || fnc[2] == scope)) {
+ if(fnc[4]) {
+ fnc[4].cancel();
+ }
+ k = fn.tasks && fn.tasks.length;
+ if(k) {
+ while(k--) {
+ fn.tasks[k].cancel();
+ }
+ delete fn.tasks;
+ }
+ wrap = fnc[1];
+ E.un(el, eventName, E.extAdapter ? fnc[3] : wrap);
- // jQuery workaround that should be removed from Ext Core
- if(eventName == "mousewheel" && el.addEventListener && wrap){
- el.removeEventListener("DOMMouseScroll", wrap, false);
- }
-
- if(eventName == "mousedown" && el == DOC && wrap){ // fix stopped mousedowns on the document
- Ext.EventManager.stoppedMouseDownEvent.removeListener(wrap);
+ // jQuery workaround that should be removed from Ext Core
+ if(wrap && el.addEventListener && eventName == "mousewheel"){
+ el.removeEventListener("DOMMouseScroll", wrap, false);
+ }
+
+ // fix stopped mousedowns on the document
+ if(wrap && el == DOC && eventName == "mousedown"){
+ Ext.EventManager.stoppedMouseDownEvent.removeListener(wrap);
+ }
+
+ f.splice(i, 1);
+ if (f.length === 0) {
+ delete Ext.elCache[id].events[eventName];
+ }
+ for (k in Ext.elCache[id].events) {
+ return false;
+ }
+ Ext.elCache[id].events = {};
+ return false;
+ }
}
},
-
+
<div id="method-Ext.EventManager-removeAll"></div>/**
* Removes all event handers from an element. Typically you will use {@link Ext.Element#removeAllListeners}
* directly on an Element in favor of calling this version.
* @param {String/HTMLElement} el The id or html element from which to remove all event handlers.
*/
removeAll : function(el){
- var id = Ext.id(el = Ext.getDom(el)),
- es = elHash[id],
- ename;
-
+ el = Ext.getDom(el);
+ var id = getId(el),
+ ec = Ext.elCache[id] || {},
+ es = ec.events || {},
+ f, i, len, ename, fn, k, wrap;
+
for(ename in es){
- if(es.hasOwnProperty(ename)){
- Ext.each(es[ename], function(v) {
- E.un(el, ename, v.wrap);
- });
- }
+ if(es.hasOwnProperty(ename)){
+ f = es[ename];
+ /* 0 = Original Function,
+ 1 = Event Manager Wrapped Function,
+ 2 = Scope,
+ 3 = Adapter Wrapped Function,
+ 4 = Buffered Task
+ */
+ for (i = 0, len = f.length; i < len; i++) {
+ fn = f[i];
+ if(fn[4]) {
+ fn[4].cancel();
+ }
+ if(fn[0].tasks && (k = fn[0].tasks.length)) {
+ while(k--) {
+ fn[0].tasks[k].cancel();
+ }
+ delete fn.tasks;
+ }
+ wrap = fn[1];
+ E.un(el, ename, E.extAdapter ? fn[3] : wrap);
+
+ // jQuery workaround that should be removed from Ext Core
+ if(el.addEventListener && wrap && ename == "mousewheel"){
+ el.removeEventListener("DOMMouseScroll", wrap, false);
+ }
+
+ // fix stopped mousedowns on the document
+ if(wrap && el == DOC && ename == "mousedown"){
+ Ext.EventManager.stoppedMouseDownEvent.removeListener(wrap);
+ }
+ }
+ }
+ }
+ if (Ext.elCache[id]) {
+ Ext.elCache[id].events = {};
+ }
+ },
+
+ getListeners : function(el, eventName) {
+ el = Ext.getDom(el);
+ var id = getId(el),
+ ec = Ext.elCache[id] || {},
+ es = ec.events || {},
+ results = [];
+ if (es && es[eventName]) {
+ return es[eventName];
+ } else {
+ return null;
}
- elHash[id] = null;
},
+ purgeElement : function(el, recurse, eventName) {
+ el = Ext.getDom(el);
+ var id = getId(el),
+ ec = Ext.elCache[id] || {},
+ es = ec.events || {},
+ i, f, len;
+ if (eventName) {
+ if (es && es.hasOwnProperty(eventName)) {
+ f = es[eventName];
+ for (i = 0, len = f.length; i < len; i++) {
+ Ext.EventManager.removeListener(el, eventName, f[i][0]);
+ }
+ }
+ } else {
+ Ext.EventManager.removeAll(el);
+ }
+ if (recurse && el && el.childNodes) {
+ for (i = 0, len = el.childNodes.length; i < len; i++) {
+ Ext.EventManager.purgeElement(el.childNodes[i], recurse, eventName);
+ }
+ }
+ },
+
+ _unload : function() {
+ var el;
+ for (el in Ext.elCache) {
+ Ext.EventManager.removeAll(el);
+ }
+ delete Ext.elCache;
+ delete Ext.Element._flyweights;
+
+ // Abort any outstanding Ajax requests
+ var c,
+ conn,
+ tid,
+ ajax = Ext.lib.Ajax;
+ (Ext.isObject(ajax.conn)) ? conn = ajax.conn : conn = {};
+ for (tid in conn) {
+ c = conn[tid];
+ if (c) {
+ ajax.abort({conn: c, tId: tid});
+ }
+ }
+ },
<div id="method-Ext.EventManager-onDocumentReady"></div>/**
* Adds a listener to be notified when the document is ready (before onload and before images are loaded). Can be
* accessed shorthanded as Ext.onReady().
* <code>{single: true}</code> be used so that the handler is removed on first invocation.
*/
onDocumentReady : function(fn, scope, options){
- if(docReadyState){ // if it already fired
+ if(Ext.isReady){ // if it already fired or document.body is present
+ docReadyEvent || (docReadyEvent = new Ext.util.Event());
docReadyEvent.addListener(fn, scope, options);
docReadyEvent.fire();
- docReadyEvent.clearListeners();
- } else {
- if(!docReadyEvent) initDocReady();
+ docReadyEvent.listeners = [];
+ }else{
+ if(!docReadyEvent){
+ initDocReady();
+ }
options = options || {};
- options.delay = options.delay || 1;
+ options.delay = options.delay || 1;
docReadyEvent.addListener(fn, scope, options);
}
},
-
- elHash : elHash
+
+ <div id="prop-Ext.EventManager-fireDocReady"></div>/**
+ * Forces a document ready state transition for the framework. Used when Ext is loaded
+ * into a DOM structure AFTER initial page load (Google API or other dynamic load scenario.
+ * Any pending 'onDocumentReady' handlers will be fired (if not already handled).
+ */
+ fireDocReady : fireDocReady
};
<div id="method-Ext.EventManager-on"></div>/**
* Appends an event handler to an element. Shorthand for {@link #addListener}.
//Initialize doc classes
(function(){
-
+
var initExtCss = function(){
// find the body element
var bd = document.body || document.getElementsByTagName('body')[0];
<div id="cls-Ext.EventObject"></div>/**
* @class Ext.EventObject
- * Just as {@link Ext.Element} wraps around a native DOM node, Ext.EventObject
+ * Just as {@link Ext.Element} wraps around a native DOM node, Ext.EventObject
* wraps the browser's native event-object normalizing cross-browser differences,
* such as which mouse button is clicked, keys pressed, mechanisms to stop
* event-propagation along with a method to prevent default actions from taking place.
myDiv.on( // 'on' is shorthand for addListener
"click", // perform an action on click of myDiv
handleClick // reference to the action handler
-);
+);
// other methods to do the same:
Ext.EventManager.on("myDiv", 'click', handleClick);
Ext.EventManager.addListener("myDiv", 'click', handleClick);
if(this.browserEvent){
E.preventDefault(this.browserEvent);
}
- },
+ },
<div id="method-Ext.EventObject-stopPropagation"></div>/**
* Cancels bubbling of the event.
getKey : function(){
return this.normalizeKey(this.keyCode || this.charCode)
},
-
+
// private
normalizeKey: function(k){
- return Ext.isSafari ? (safariKeys[k] || k) : k;
+ return Ext.isSafari ? (safariKeys[k] || k) : k;
},
<div id="method-Ext.EventObject-getPageX"></div>/**
}
return delta;
},
-
+
<div id="method-Ext.EventObject-within"></div>/**
* Returns true if the target of this event is a child of el. Unless the allowEl parameter is set, it will return false if if the target is el.
* Example usage:<pre><code>
alert('Clicked on a child of some-el!');
}
});
-
+
// Handle click directly on an element, ignoring clicks on child nodes
Ext.getBody().on('click', function(e,t){
if((t.id == 'some-el') && !e.within(t, true)){
};
return new Ext.EventObjectImpl();
-}();</pre>
+}();
+</pre>
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</html>
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git.ithinksw.org / extjs.git / blobdiff