--- /dev/null
+<html>\r
+<head>\r
+ <title>The source code</title>\r
+ <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />\r
+ <script type="text/javascript" src="../resources/prettify/prettify.js"></script>\r
+</head>\r
+<body onload="prettyPrint();">\r
+ <pre class="prettyprint lang-js"><div id="cls-Ext.EventManager"></div>/**
+ * @class Ext.EventManager
+ * Registers event handlers that want to receive a normalized EventObject instead of the standard browser event and provides
+ * several useful events directly.
+ * See {@link Ext.EventObject} for more details on normalized event objects.
+ * @singleton
+ */
+Ext.EventManager = function(){
+ var docReadyEvent,
+ docReadyProcId,
+ docReadyState = false,
+ 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)$/;
+
+ /// 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);
+
+ // 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
+ var args = ["DOMMouseScroll", wrap, false];
+ el.addEventListener.apply(el, args);
+ E.on(window, 'unload', function(){
+ el.removeEventListener.apply(el, args);
+ });
+ }
+ if(ename == "mousedown" && el == document){ // fix stopped mousedowns on the document
+ Ext.EventManager.stoppedMouseDownEvent.addListener(wrap);
+ }
+ };
+
+ function fireDocReady(){
+ if(!docReadyState){
+ Ext.isReady = docReadyState = true;
+ if(docReadyProcId){
+ clearInterval(docReadyProcId);
+ }
+ if(Ext.isGecko || Ext.isOpera) {
+ 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();
+ }
+ }
+ };
+
+ function initDocReady(){
+ var COMPLETE = "complete";
+
+ docReadyEvent = new Ext.util.Event();
+ if (Ext.isGecko || Ext.isOpera) {
+ 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);
+ }
+ // no matter what, make sure it fires on load
+ E.on(WINDOW, "load", fireDocReady);
+ };
+
+ function createTargeted(h, o){
+ return function(){
+ var args = Ext.toArray(arguments);
+ if(o.target == Ext.EventObject.setEvent(args[0]).target){
+ h.apply(this, args);
+ }
+ };
+ };
+
+ function createBuffered(h, o){
+ var task = new Ext.util.DelayedTask(h);
+ return function(e){
+ // create new event object impl so new events don't wipe out properties
+ task.delay(o.buffer, h, null, [new Ext.EventObjectImpl(e)]);
+ };
+ };
+
+ function createSingle(h, el, ename, fn, scope){
+ return function(e){
+ Ext.EventManager.removeListener(el, ename, fn, scope);
+ h(e);
+ };
+ };
+
+ function createDelayed(h, o){
+ 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);
+ };
+ };
+
+ function listen(element, ename, opt, fn, scope){
+ var o = !Ext.isObject(opt) ? {} : opt,
+ el = Ext.getDom(element);
+
+ 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?
+ return;
+ }
+ e = Ext.EventObject.setEvent(e);
+ var t;
+ if (o.delegate) {
+ if(!(t = e.getTarget(o.delegate, el))){
+ return;
+ }
+ } else {
+ t = e.target;
+ }
+ if (o.stopEvent) {
+ e.stopEvent();
+ }
+ if (o.preventDefault) {
+ e.preventDefault();
+ }
+ if (o.stopPropagation) {
+ e.stopPropagation();
+ }
+ 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);
+ }
+ if(o.single){
+ h = createSingle(h, el, ename, fn, scope);
+ }
+ if(o.buffer){
+ h = createBuffered(h, o);
+ }
+
+ addListener(el, ename, fn, h, scope);
+ return h;
+ };
+
+ var pub = {
+ <div id="method-Ext.EventManager-addListener"></div>/**
+ * Appends an event handler to an element. The shorthand version {@link #on} is equivalent. Typically you will
+ * use {@link Ext.Element#addListener} directly on an Element in favor of calling this version.
+ * @param {String/HTMLElement} el The html element or id to assign the event handler to
+ * @param {String} eventName The type of event to listen for
+ * @param {Function} handler The handler function the event invokes This function is passed
+ * the following parameters:<ul>
+ * <li>evt : EventObject<div class="sub-desc">The {@link Ext.EventObject EventObject} describing the event.</div></li>
+ * <li>t : Element<div class="sub-desc">The {@link Ext.Element Element} which was the target of the event.
+ * Note that this may be filtered by using the <tt>delegate</tt> option.</div></li>
+ * <li>o : Object<div class="sub-desc">The options object from the addListener call.</div></li>
+ * </ul>
+ * @param {Object} scope (optional) The scope (<b><code>this</code></b> reference) in which the handler function is executed. <b>Defaults to the Element</b>.
+ * @param {Object} options (optional) An object containing handler configuration properties.
+ * This may contain any of the following properties:<ul>
+ * <li>scope : Object<div class="sub-desc">The scope (<b><code>this</code></b> reference) in which the handler function is executed. <b>Defaults to the Element</b>.</div></li>
+ * <li>delegate : String<div class="sub-desc">A simple selector to filter the target or look for a descendant of the target</div></li>
+ * <li>stopEvent : Boolean<div class="sub-desc">True to stop the event. That is stop propagation, and prevent the default action.</div></li>
+ * <li>preventDefault : Boolean<div class="sub-desc">True to prevent the default action</div></li>
+ * <li>stopPropagation : Boolean<div class="sub-desc">True to prevent event propagation</div></li>
+ * <li>normalized : Boolean<div class="sub-desc">False to pass a browser event to the handler function instead of an Ext.EventObject</div></li>
+ * <li>delay : Number<div class="sub-desc">The number of milliseconds to delay the invocation of the handler after te event fires.</div></li>
+ * <li>single : Boolean<div class="sub-desc">True to add a handler to handle just the next firing of the event, and then remove itself.</div></li>
+ * <li>buffer : Number<div class="sub-desc">Causes the handler to be scheduled to run in an {@link Ext.util.DelayedTask} delayed
+ * by the specified number of milliseconds. If the event fires again within that time, the original
+ * handler is <em>not</em> invoked, but the new handler is scheduled in its place.</div></li>
+ * <li>target : Element<div class="sub-desc">Only call the handler if the event was fired on the target Element, <i>not</i> if the event was bubbled up from a child node.</div></li>
+ * </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)){
+ var o = eventName, e, val;
+ for(e in o){
+ val = o[e];
+ if(!propRe.test(e)){
+ if(Ext.isFunction(val)){
+ // shared options
+ listen(element, e, o, val, o.scope);
+ }else{
+ // individual options
+ listen(element, e, val);
+ }
+ }
+ }
+ } else {
+ 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 {String/HTMLElement} el The id or html element from which to remove the event
+ * @param {String} eventName The type of event
+ * @param {Function} fn The handler function to remove
+ */
+ 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;
+ }
+ });
+
+ // 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);
+ }
+ },
+
+ <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 the event
+ */
+ removeAll : function(el){
+ var id = Ext.id(el = Ext.getDom(el)),
+ es = elHash[id],
+ ename;
+
+ for(ename in es){
+ if(es.hasOwnProperty(ename)){
+ Ext.each(es[ename], function(v) {
+ E.un(el, ename, v.wrap);
+ });
+ }
+ }
+ elHash[id] = null;
+ },
+
+ <div id="method-Ext.EventManager-onDocumentReady"></div>/**
+ * Fires when the document is ready (before onload and before images are loaded). Can be
+ * accessed shorthanded as Ext.onReady().
+ * @param {Function} fn The method the event invokes
+ * @param {Object} scope (optional) An object that becomes the scope of the handler
+ * @param {boolean} options (optional) An object containing standard {@link #addListener} options
+ */
+ onDocumentReady : function(fn, scope, options){
+ if(docReadyState){ // if it already fired
+ docReadyEvent.addListener(fn, scope, options);
+ docReadyEvent.fire();
+ docReadyEvent.clearListeners();
+ } else {
+ if(!docReadyEvent) initDocReady();
+ options = options || {};
+ options.delay = options.delay || 1;
+ docReadyEvent.addListener(fn, scope, options);
+ }
+ },
+
+ elHash : elHash
+ };
+ <div id="method-Ext.EventManager-on"></div>/**
+ * Appends an event handler to an element. Shorthand for {@link #addListener}.
+ * @param {String/HTMLElement} el The html element or id to assign the event handler to
+ * @param {String} eventName The type of event to listen for
+ * @param {Function} handler The handler function the event invokes
+ * @param {Object} scope (optional) The scope in which to execute the handler
+ * function (the handler function's "this" context)
+ * @param {Object} options (optional) An object containing standard {@link #addListener} options
+ * @member Ext.EventManager
+ * @method on
+ */
+ pub.on = pub.addListener;
+ <div id="method-Ext.EventManager-un"></div>/**
+ * Removes an event handler from an element. Shorthand for {@link #removeListener}.
+ * @param {String/HTMLElement} el The id or html element from which to remove the event
+ * @param {String} eventName The type of event
+ * @param {Function} fn The handler function to remove
+ * @return {Boolean} True if a listener was actually removed, else false
+ * @member Ext.EventManager
+ * @method un
+ */
+ pub.un = pub.removeListener;
+
+ pub.stoppedMouseDownEvent = new Ext.util.Event();
+ return pub;
+}();
+<div id="method-Ext-onReady"></div>/**
+ * Fires when the document is ready (before onload and before images are loaded). Shorthand of {@link Ext.EventManager#onDocumentReady}.
+ * @param {Function} fn The method the event invokes
+ * @param {Object} scope An object that becomes the scope of the handler
+ * @param {boolean} options (optional) An object containing standard {@link #addListener} options
+ * @member Ext
+ * @method onReady
+ */
+Ext.onReady = Ext.EventManager.onDocumentReady;
+
+
+//Initialize doc classes
+(function(){
+
+ var initExtCss = function(){
+ // find the body element
+ var bd = document.body || document.getElementsByTagName('body')[0];
+ if(!bd){ return false; }
+ var cls = [' ',
+ Ext.isIE ? "ext-ie " + (Ext.isIE6 ? 'ext-ie6' : (Ext.isIE7 ? 'ext-ie7' : 'ext-ie8'))
+ : Ext.isGecko ? "ext-gecko " + (Ext.isGecko2 ? 'ext-gecko2' : 'ext-gecko3')
+ : Ext.isOpera ? "ext-opera"
+ : Ext.isWebKit ? "ext-webkit" : ""];
+
+ if(Ext.isSafari){
+ cls.push("ext-safari " + (Ext.isSafari2 ? 'ext-safari2' : (Ext.isSafari3 ? 'ext-safari3' : 'ext-safari4')));
+ }else if(Ext.isChrome){
+ cls.push("ext-chrome");
+ }
+
+ if(Ext.isMac){
+ cls.push("ext-mac");
+ }
+ if(Ext.isLinux){
+ cls.push("ext-linux");
+ }
+
+ if(Ext.isStrict || Ext.isBorderBox){ // add to the parent to allow for selectors like ".ext-strict .ext-ie"
+ var p = bd.parentNode;
+ if(p){
+ p.className += Ext.isStrict ? ' ext-strict' : ' ext-border-box';
+ }
+ }
+ bd.className += cls.join(' ');
+ return true;
+ }
+
+ if(!initExtCss()){
+ Ext.onReady(initExtCss);
+ }
+})();
+
+
+<div id="cls-Ext.EventObject"></div>/**
+ * @class 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.
+ * <p>For example:</p>
+ * <pre><code>
+function handleClick(e, t){ // e is not a standard event object, it is a Ext.EventObject
+ e.preventDefault();
+ var target = e.getTarget(); // same as t (the target HTMLElement)
+ ...
+}
+var myDiv = {@link Ext#get Ext.get}("myDiv"); // get reference to an {@link Ext.Element}
+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);
+ </code></pre>
+ * @singleton
+ */
+Ext.EventObject = function(){
+ var E = Ext.lib.Event,
+ // safari keypress events for special keys return bad keycodes
+ safariKeys = {
+ 3 : 13, // enter
+ 63234 : 37, // left
+ 63235 : 39, // right
+ 63232 : 38, // up
+ 63233 : 40, // down
+ 63276 : 33, // page up
+ 63277 : 34, // page down
+ 63272 : 46, // delete
+ 63273 : 36, // home
+ 63275 : 35 // end
+ },
+ // normalize button clicks
+ btnMap = Ext.isIE ? {1:0,4:1,2:2} :
+ (Ext.isWebKit ? {1:0,2:1,3:2} : {0:0,1:1,2:2});
+
+ Ext.EventObjectImpl = function(e){
+ if(e){
+ this.setEvent(e.browserEvent || e);
+ }
+ };
+
+ Ext.EventObjectImpl.prototype = {
+ /** @private */
+ setEvent : function(e){
+ var me = this;
+ if(e == me || (e && e.browserEvent)){ // already wrapped
+ return e;
+ }
+ me.browserEvent = e;
+ if(e){
+ // normalize buttons
+ me.button = e.button ? btnMap[e.button] : (e.which ? e.which - 1 : -1);
+ if(e.type == 'click' && me.button == -1){
+ me.button = 0;
+ }
+ me.type = e.type;
+ me.shiftKey = e.shiftKey;
+ // mac metaKey behaves like ctrlKey
+ me.ctrlKey = e.ctrlKey || e.metaKey || false;
+ me.altKey = e.altKey;
+ // in getKey these will be normalized for the mac
+ me.keyCode = e.keyCode;
+ me.charCode = e.charCode;
+ // cache the target for the delayed and or buffered events
+ me.target = E.getTarget(e);
+ // same for XY
+ me.xy = E.getXY(e);
+ }else{
+ me.button = -1;
+ me.shiftKey = false;
+ me.ctrlKey = false;
+ me.altKey = false;
+ me.keyCode = 0;
+ me.charCode = 0;
+ me.target = null;
+ me.xy = [0, 0];
+ }
+ return me;
+ },
+
+ <div id="method-Ext.EventObject-stopEvent"></div>/**
+ * Stop the event (preventDefault and stopPropagation)
+ */
+ stopEvent : function(){
+ var me = this;
+ if(me.browserEvent){
+ if(me.browserEvent.type == 'mousedown'){
+ Ext.EventManager.stoppedMouseDownEvent.fire(me);
+ }
+ E.stopEvent(me.browserEvent);
+ }
+ },
+
+ <div id="method-Ext.EventObject-preventDefault"></div>/**
+ * Prevents the browsers default handling of the event.
+ */
+ preventDefault : function(){
+ if(this.browserEvent){
+ E.preventDefault(this.browserEvent);
+ }
+ },
+
+ <div id="method-Ext.EventObject-stopPropagation"></div>/**
+ * Cancels bubbling of the event.
+ */
+ stopPropagation : function(){
+ var me = this;
+ if(me.browserEvent){
+ if(me.browserEvent.type == 'mousedown'){
+ Ext.EventManager.stoppedMouseDownEvent.fire(me);
+ }
+ E.stopPropagation(me.browserEvent);
+ }
+ },
+
+ <div id="method-Ext.EventObject-getCharCode"></div>/**
+ * Gets the character code for the event.
+ * @return {Number}
+ */
+ getCharCode : function(){
+ return this.charCode || this.keyCode;
+ },
+
+ <div id="method-Ext.EventObject-getKey"></div>/**
+ * Returns a normalized keyCode for the event.
+ * @return {Number} The key code
+ */
+ getKey : function(){
+ return this.normalizeKey(this.keyCode || this.charCode)
+ },
+
+ // private
+ normalizeKey: function(k){
+ return Ext.isSafari ? (safariKeys[k] || k) : k;
+ },
+
+ <div id="method-Ext.EventObject-getPageX"></div>/**
+ * Gets the x coordinate of the event.
+ * @return {Number}
+ */
+ getPageX : function(){
+ return this.xy[0];
+ },
+
+ <div id="method-Ext.EventObject-getPageY"></div>/**
+ * Gets the y coordinate of the event.
+ * @return {Number}
+ */
+ getPageY : function(){
+ return this.xy[1];
+ },
+
+ <div id="method-Ext.EventObject-getXY"></div>/**
+ * Gets the page coordinates of the event.
+ * @return {Array} The xy values like [x, y]
+ */
+ getXY : function(){
+ return this.xy;
+ },
+
+ <div id="method-Ext.EventObject-getTarget"></div>/**
+ * Gets the target for the event.
+ * @param {String} selector (optional) A simple selector to filter the target or look for an ancestor of the target
+ * @param {Number/Mixed} maxDepth (optional) The max depth to
+ search as a number or element (defaults to 10 || document.body)
+ * @param {Boolean} returnEl (optional) True to return a Ext.Element object instead of DOM node
+ * @return {HTMLelement}
+ */
+ getTarget : function(selector, maxDepth, returnEl){
+ return selector ? Ext.fly(this.target).findParent(selector, maxDepth, returnEl) : (returnEl ? Ext.get(this.target) : this.target);
+ },
+
+ <div id="method-Ext.EventObject-getRelatedTarget"></div>/**
+ * Gets the related target.
+ * @return {HTMLElement}
+ */
+ getRelatedTarget : function(){
+ return this.browserEvent ? E.getRelatedTarget(this.browserEvent) : null;
+ },
+
+ <div id="method-Ext.EventObject-getWheelDelta"></div>/**
+ * Normalizes mouse wheel delta across browsers
+ * @return {Number} The delta
+ */
+ getWheelDelta : function(){
+ var e = this.browserEvent;
+ var delta = 0;
+ if(e.wheelDelta){ /* IE/Opera. */
+ delta = e.wheelDelta/120;
+ }else if(e.detail){ /* Mozilla case. */
+ delta = -e.detail/3;
+ }
+ 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>
+ // Handle click on any child of an element
+ Ext.getBody().on('click', function(e){
+ if(e.within('some-el')){
+ 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)){
+ alert('Clicked directly on some-el!');
+ }
+ });
+ </code></pre>
+ * @param {Mixed} el The id, DOM element or Ext.Element to check
+ * @param {Boolean} related (optional) true to test if the related target is within el instead of the target
+ * @param {Boolean} allowEl {optional} true to also check if the passed element is the target or related target
+ * @return {Boolean}
+ */
+ within : function(el, related, allowEl){
+ if(el){
+ var t = this[related ? "getRelatedTarget" : "getTarget"]();
+ return t && ((allowEl ? (t == Ext.getDom(el)) : false) || Ext.fly(el).contains(t));
+ }
+ return false;
+ }
+ };
+
+ return new Ext.EventObjectImpl();
+}();</pre> \r
+</body>\r
+</html>
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git.ithinksw.org / extjs.git / blobdiff