/*!
 * Ext JS Library 3.0.3
 * Copyright(c) 2006-2009 Ext JS, LLC
 * licensing@extjs.com
 * http://www.extjs.com/license
 */
/** * @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(""); 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 = {
/** * 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 name of the event to listen for. * @param {Function} handler The handler function the event invokes. This function is passed * the following parameters: * @param {Object} scope (optional) The scope (this reference) in which the handler function is executed. Defaults to the Element. * @param {Object} options (optional) An object containing handler configuration properties. * This may contain any of the following properties:
*

See {@link Ext.Element#addListener} for examples of how to use these options.

*/ 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); } },
/** * 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 listener. * @param {String} eventName The name of the event. * @param {Function} fn The handler function to remove. This must be a reference to the function passed into the {@link #addListener} call. * @param {Object} scope If a scope (this 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; } }); // 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); } },
/** * 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; for(ename in es){ if(es.hasOwnProperty(ename)){ Ext.each(es[ename], function(v) { E.un(el, ename, v.wrap); }); } } elHash[id] = null; },
/** * 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(). * @param {Function} fn The method the event invokes. * @param {Object} scope (optional) The scope (this reference) in which the handler function executes. Defaults to the browser window. * @param {boolean} options (optional) Options object as passed to {@link Ext.Element#addListener}. It is recommended that the options * {single: true} be used so that the handler is removed on first invocation. */ 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 };
/** * 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 name of the event to listen for. * @param {Function} handler The handler function the event invokes. * @param {Object} scope (optional) (this reference) in which the handler function executes. Defaults to the Element. * @param {Object} options (optional) An object containing standard {@link #addListener} options * @member Ext.EventManager * @method on */ pub.on = pub.addListener;
/** * 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 listener. * @param {String} eventName The name of the event. * @param {Function} fn The handler function to remove. This must be a reference to the function passed into the {@link #on} call. * @param {Object} scope If a scope (this reference) was specified when the listener was added, * then this must refer to the same object. * @member Ext.EventManager * @method un */ pub.un = pub.removeListener; pub.stoppedMouseDownEvent = new Ext.util.Event(); return pub; }();
/** * Adds a listener to be notified 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 (optional) The scope (this reference) in which the handler function executes. Defaults to the browser window. * @param {boolean} options (optional) Options object as passed to {@link Ext.Element#addListener}. It is recommended that the options * {single: true} be used so that the handler is removed on first invocation. * @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); } })();
/** * @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. *

For example:

*

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);
 
* @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; },
/** * 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); } },
/** * Prevents the browsers default handling of the event. */ preventDefault : function(){ if(this.browserEvent){ E.preventDefault(this.browserEvent); } },
/** * 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); } },
/** * Gets the character code for the event. * @return {Number} */ getCharCode : function(){ return this.charCode || this.keyCode; },
/** * 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; },
/** * Gets the x coordinate of the event. * @return {Number} */ getPageX : function(){ return this.xy[0]; },
/** * Gets the y coordinate of the event. * @return {Number} */ getPageY : function(){ return this.xy[1]; },
/** * Gets the page coordinates of the event. * @return {Array} The xy values like [x, y] */ getXY : function(){ return this.xy; },
/** * 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); },
/** * Gets the related target. * @return {HTMLElement} */ getRelatedTarget : function(){ return this.browserEvent ? E.getRelatedTarget(this.browserEvent) : null; },
/** * 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; },
/** * 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:

        // 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!');
            }
        });
        
* @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(); }();