app/assets/javascripts/ext/src/ext-core/src/core/EventManager.js
/*!
* Ext JS Library 3.3.0
* Copyright(c) 2006-2010 Ext JS, Inc.
* 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,
DETECT_NATIVE = Ext.isGecko || Ext.isWebKit || Ext.isSafari,
E = Ext.lib.Event,
D = Ext.lib.Dom,
DOC = document,
WINDOW = window,
DOMCONTENTLOADED = "DOMContentLoaded",
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,
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, 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.
// workaround for jQuery
if(el.addEventListener && ename == "mousewheel"){
var args = ["DOMMouseScroll", wrap, false];
el.addEventListener.apply(el, args);
Ext.EventManager.addListener(WINDOW, 'unload', function(){
el.removeEventListener.apply(el, args);
});
}
// fix stopped mousedowns on the document
if(el == DOC && ename == "mousedown"){
Ext.EventManager.stoppedMouseDownEvent.addListener(wrap);
}
}
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;
}
/**
* @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){
clearTimeout(docReadyProcId);
}
if(DETECT_NATIVE) {
DOC.removeEventListener(DOMCONTENTLOADED, fireDocReady, false);
}
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(){
docReadyEvent || (docReadyEvent = new Ext.util.Event());
if (DETECT_NATIVE) {
DOC.addEventListener(DOMCONTENTLOADED, fireDocReady, false);
}
/*
* 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);
}
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, task){
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, fn){
return function(e){
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 = (!opt || typeof opt == "boolean") ? {} : opt,
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?
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 === false) {
e = e.browserEvent;
}
fn.call(scope || el, e, t, o);
}
if(o.target){
h = createTargeted(h, o);
}
if(o.delay){
h = createDelayed(h, o, fn);
}
if(o.single){
h = createSingle(h, el, ename, fn, scope);
}
if(o.buffer){
task = new Ext.util.DelayedTask(h);
h = createBuffered(h, o, task);
}
addListener(el, ename, fn, task, 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:<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(typeof eventName == 'object'){
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. <b>This must be a reference to the function passed into the {@link #addListener} call.</b>
* @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(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(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;
}
}
},
/**
* 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){
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)){
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;
}
},
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;
(typeof ajax.conn == 'object') ? conn = ajax.conn : conn = {};
for (tid in conn) {
c = conn[tid];
if (c) {
ajax.abort({conn: c, tId: tid});
}
}
},
/**
* 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 (<code>this</code> 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
* <code>{single: true}</code> be used so that the handler is removed on first invocation.
*/
onDocumentReady : function(fn, scope, options){
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.listeners = [];
} else {
if (!docReadyEvent) {
initDocReady();
}
options = options || {};
options.delay = options.delay || 1;
docReadyEvent.addListener(fn, scope, options);
}
},
/**
* 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
};
/**
* 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) (<code>this</code> reference) in which the handler function executes. <b>Defaults to the Element</b>.
* @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. <b>This must be a reference to the function passed into the {@link #on} call.</b>
* @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.
* @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 (<code>this</code> 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
* <code>{single: true}</code> 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");
}
// add to the parent to allow for selectors like ".ext-strict .ext-ie"
if (Ext.isStrict || Ext.isBorderBox) {
var p = bd.parentNode;
if (p) {
Ext.fly(p, '_internal').addClass(((Ext.isStrict && Ext.isIE ) || (!Ext.enableForcedBoxModel && !Ext.isIE)) ? ' ext-strict' : ' ext-border-box');
}
}
// Forced border box model class applied to all elements. Bypassing javascript based box model adjustments
// in favor of css. This is for non-IE browsers.
if (Ext.enableForcedBoxModel && !Ext.isIE) {
Ext.isForcedBorderBox = true;
cls.push("ext-forced-border-box");
}
Ext.fly(bd, '_internal').addClass(cls);
return true;
};
/*
* Assert Ext.isReady here. If Ext is loaded after the document is ready, none of the native
* DOM onReady events will fire, because they have already passed.
*/
Ext.isReady = initExtCss();
if (!Ext.isReady) {
Ext.onReady(initExtCss);
}
})();
/**
* Code used to detect certain browser feature/quirks/bugs at startup.
*/
(function(){
var supports = Ext.apply(Ext.supports, {
/**
* In Webkit, there is an issue with getting the margin right property, see
* https://bugs.webkit.org/show_bug.cgi?id=13343
*/
correctRightMargin: true,
/**
* Webkit browsers return rgba(0, 0, 0) when a transparent color is used
*/
correctTransparentColor: true,
/**
* IE uses styleFloat, not cssFloat for the float property.
*/
cssFloat: true
});
var supportTests = function(){
var div = document.createElement('div'),
doc = document,
view,
last;
div.innerHTML = '<div style="height:30px;width:50px;"><div style="height:20px;width:20px;"></div></div><div style="float:left;background-color:transparent;">';
doc.body.appendChild(div);
last = div.lastChild;
if((view = doc.defaultView)){
if(view.getComputedStyle(div.firstChild.firstChild, null).marginRight != '0px'){
supports.correctRightMargin = false;
}
if(view.getComputedStyle(last, null).backgroundColor != 'transparent'){
supports.correctTransparentColor = false;
}
}
supports.cssFloat = !!last.style.cssFloat;
doc.body.removeChild(div);
};
if (Ext.isReady) {
supportTests();
} else {
Ext.onReady(supportTests);
}
})();
/**
* @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,
clickRe = /(dbl)?click/,
// 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} : {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(clickRe.test(e.type) && 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:<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();
}();