EventManager.js
/**
* @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;
var resizeEvent, resizeTask, textEvent, textSize;
var E = Ext.lib.Event;
var D = Ext.lib.Dom;
// fix parser confusion
var xname = 'Ex' + 't';
var elHash = {};
var addListener = function(el, ename, fn, wrap, scope){
var id = Ext.id(el);
if(!elHash[id]){
elHash[id] = {};
}
var es = elHash[id];
if(!es[ename]){
es[ename] = [];
}
var ls = es[ename];
ls.push({
id: id,
ename: ename,
fn: fn,
wrap: wrap,
scope: scope
});
E.on(el, ename, wrap);
if(ename == "mousewheel" && el.addEventListener){ // workaround for jQuery
el.addEventListener("DOMMouseScroll", wrap, false);
E.on(window, 'unload', function(){
el.removeEventListener("DOMMouseScroll", wrap, false);
});
}
if(ename == "mousedown" && el == document){ // fix stopped mousedowns on the document
Ext.EventManager.stoppedMouseDownEvent.addListener(wrap);
}
}
var removeListener = function(el, ename, fn, scope){
el = Ext.getDom(el);
var id = Ext.id(el), es = elHash[id], wrap;
if(es){
var ls = es[ename], l;
if(ls){
for(var i = 0, len = ls.length; i < len; i++){
l = ls[i];
if(l.fn == fn && (!scope || l.scope == scope)){
wrap = l.wrap;
E.un(el, ename, wrap);
ls.splice(i, 1);
break;
}
}
}
}
if(ename == "mousewheel" && el.addEventListener && wrap){
el.removeEventListener("DOMMouseScroll", wrap, false);
}
if(ename == "mousedown" && el == document && wrap){ // fix stopped mousedowns on the document
Ext.EventManager.stoppedMouseDownEvent.removeListener(wrap);
}
}
var removeAll = function(el){
el = Ext.getDom(el);
var id = Ext.id(el), es = elHash[id], ls;
if(es){
for(var ename in es){
if(es.hasOwnProperty(ename)){
ls = es[ename];
for(var i = 0, len = ls.length; i < len; i++){
E.un(el, ename, ls[i].wrap);
ls[i] = null;
}
}
es[ename] = null;
}
delete elHash[id];
}
}
var fireDocReady = function(){
if(!docReadyState){
docReadyState = true;
Ext.isReady = true;
if(docReadyProcId){
clearInterval(docReadyProcId);
}
if(Ext.isGecko || Ext.isOpera) {
document.removeEventListener("DOMContentLoaded", fireDocReady, false);
}
if(Ext.isIE){
var defer = document.getElementById("ie-deferred-loader");
if(defer){
defer.onreadystatechange = null;
defer.parentNode.removeChild(defer);
}
}
if(docReadyEvent){
docReadyEvent.fire();
docReadyEvent.clearListeners();
}
}
};
var initDocReady = function(){
docReadyEvent = new Ext.util.Event();
if(Ext.isGecko || Ext.isOpera) {
document.addEventListener("DOMContentLoaded", fireDocReady, false);
}else if(Ext.isIE){
document.write("<s"+'cript id="ie-deferred-loader" defer="defer" src="/'+'/:"></s'+"cript>");
var defer = document.getElementById("ie-deferred-loader");
defer.onreadystatechange = function(){
if(this.readyState == "complete"){
fireDocReady();
}
};
}else if(Ext.isWebKit){
docReadyProcId = setInterval(function(){
var rs = document.readyState;
if(rs == "complete") {
fireDocReady();
}
}, 10);
}
// no matter what, make sure it fires on load
E.on(window, "load", fireDocReady);
};
var createBuffered = function(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
e = new Ext.EventObjectImpl(e);
task.delay(o.buffer, h, null, [e]);
};
};
var createSingle = function(h, el, ename, fn, scope){
return function(e){
Ext.EventManager.removeListener(el, ename, fn, scope);
h(e);
};
};
var createDelayed = function(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);
};
};
var listen = function(element, ename, opt, fn, scope){
var o = (!opt || typeof opt == "boolean") ? {} : opt;
fn = fn || o.fn; scope = scope || o.scope;
var el = Ext.getDom(element);
if(!el){
throw "Error listening for \"" + ename + '\". Element "' + element + '" doesn\'t exist.';
}
var h = function(e){
// prevent errors while unload occurring
if(!window[xname]){
return;
}
e = Ext.EventObject.setEvent(e);
var t;
if(o.delegate){
t = e.getTarget(o.delegate, el);
if(!t){
return;
}
}else{
t = e.target;
}
if(o.stopEvent === true){
e.stopEvent();
}
if(o.preventDefault === true){
e.preventDefault();
}
if(o.stopPropagation === true){
e.stopPropagation();
}
if(o.normalized === false){
e = e.browserEvent;
}
fn.call(scope || el, e, t, 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 propRe = /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate)$/,
curWidth = 0,
curHeight = 0;
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 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 in which to execute the handler
* function (the handler function's "this" context)
* @param {Object} options (optional) An object containing handler configuration properties.
* This may contain any of the following properties:<ul>
* <li>scope {Object} : The scope in which to execute the handler function. The handler function's "this" context.</li>
* <li>delegate {String} : A simple selector to filter the target or look for a descendant of the target</li>
* <li>stopEvent {Boolean} : True to stop the event. That is stop propagation, and prevent the default action.</li>
* <li>preventDefault {Boolean} : True to prevent the default action</li>
* <li>stopPropagation {Boolean} : True to prevent event propagation</li>
* <li>normalized {Boolean} : False to pass a browser event to the handler function instead of an Ext.EventObject</li>
* <li>delay {Number} : The number of milliseconds to delay the invocation of the handler after te event fires.</li>
* <li>single {Boolean} : True to add a handler to handle just the next firing of the event, and then remove itself.</li>
* <li>buffer {Number} : 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.</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;
for(var e in o){
if(propRe.test(e)){
continue;
}
if(typeof o[e] == "function"){
// shared options
listen(element, e, o, o[e], o.scope);
}else{
// individual options
listen(element, e, o[e]);
}
}
return;
}
return 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 event
* @param {String} eventName The type of event
* @param {Function} fn The handler function to remove
*/
removeListener : function(element, eventName, fn, scope){
return removeListener(element, eventName, fn, scope);
},
/**
* 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(element){
return removeAll(element);
},
/**
* 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();
return;
}
if(!docReadyEvent){
initDocReady();
}
options = options || {};
if(!options.delay){
options.delay = 1;
}
docReadyEvent.addListener(fn, scope, options);
},
// private
doResizeEvent: function(){
var h = D.getViewHeight(),
w = D.getViewWidth();
//whacky problem in IE where the resize event will fire even though the w/h are the same.
if(curHeight != h || curWidth != w){
resizeEvent.fire(curWidth = w, curHeight = h);
}
},
/**
* Fires when the window is resized and provides resize event buffering (50 milliseconds), passes new viewport width and height to handlers.
* @param {Function} fn The method the event invokes
* @param {Object} scope An object that becomes the scope of the handler
* @param {boolean} options
*/
onWindowResize : function(fn, scope, options){
if(!resizeEvent){
resizeEvent = new Ext.util.Event();
resizeTask = new Ext.util.DelayedTask(this.doResizeEvent);
E.on(window, "resize", this.fireWindowResize, this);
}
resizeEvent.addListener(fn, scope, options);
},
// exposed only to allow manual firing
fireWindowResize : function(){
if(resizeEvent){
if((Ext.isIE||Ext.isAir) && resizeTask){
resizeTask.delay(50);
}else{
resizeEvent.fire(D.getViewWidth(), D.getViewHeight());
}
}
},
/**
* Fires when the user changes the active text size. Handler gets called with 2 params, the old size and the new size.
* @param {Function} fn The method the event invokes
* @param {Object} scope An object that becomes the scope of the handler
* @param {boolean} options
*/
onTextResize : function(fn, scope, options){
if(!textEvent){
textEvent = new Ext.util.Event();
var textEl = new Ext.Element(document.createElement('div'));
textEl.dom.className = 'x-text-resize';
textEl.dom.innerHTML = 'X';
textEl.appendTo(document.body);
textSize = textEl.dom.offsetHeight;
setInterval(function(){
if(textEl.dom.offsetHeight != textSize){
textEvent.fire(textSize, textSize = textEl.dom.offsetHeight);
}
}, this.textResizeInterval);
}
textEvent.addListener(fn, scope, options);
},
/**
* Removes the passed window resize listener.
* @param {Function} fn The method the event invokes
* @param {Object} scope The scope of handler
*/
removeResizeListener : function(fn, scope){
if(resizeEvent){
resizeEvent.removeListener(fn, scope);
}
},
// private
fireResize : function(){
if(resizeEvent){
resizeEvent.fire(D.getViewWidth(), D.getViewHeight());
}
},
/**
* Url used for onDocumentReady with using SSL (defaults to Ext.SSL_SECURE_URL)
*/
ieDeferSrc : false,
/**
* The frequency, in milliseconds, to check for text resize events (defaults to 50)
*/
textResizeInterval : 50
};
/**
* 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;
/**
* 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;
}();
/**
* 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.isSafari ? "ext-safari"
: Ext.isChrome ? "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
* EventObject encapsulates a DOM event adjusting for browser differences.
* Example:
* <pre><code>
function handleClick(e){ // e is not a standard event object, it is a Ext.EventObject
e.preventDefault();
var target = e.getTarget();
...
}
var myDiv = Ext.get("myDiv");
myDiv.on("click", handleClick);
//or
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
var 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
var 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 = {
/** The encapsulated browser event */
browserEvent : null,
/** The button pressed in a mouse event */
button : -1,
/** True if the shift key was down during the event */
shiftKey : false,
/** True if the control key was down during the event */
ctrlKey : false,
/** True if the alt key was down during the event */
altKey : false,
/** Key constant @type Number */
BACKSPACE: 8,
/** Key constant @type Number */
TAB: 9,
/** Key constant @type Number */
NUM_CENTER: 12,
/** Key constant @type Number */
ENTER: 13,
/** Key constant @type Number */
RETURN: 13,
/** Key constant @type Number */
SHIFT: 16,
/** Key constant @type Number */
CTRL: 17,
CONTROL : 17, // legacy
/** Key constant @type Number */
ALT: 18,
/** Key constant @type Number */
PAUSE: 19,
/** Key constant @type Number */
CAPS_LOCK: 20,
/** Key constant @type Number */
ESC: 27,
/** Key constant @type Number */
SPACE: 32,
/** Key constant @type Number */
PAGE_UP: 33,
PAGEUP : 33, // legacy
/** Key constant @type Number */
PAGE_DOWN: 34,
PAGEDOWN : 34, // legacy
/** Key constant @type Number */
END: 35,
/** Key constant @type Number */
HOME: 36,
/** Key constant @type Number */
LEFT: 37,
/** Key constant @type Number */
UP: 38,
/** Key constant @type Number */
RIGHT: 39,
/** Key constant @type Number */
DOWN: 40,
/** Key constant @type Number */
PRINT_SCREEN: 44,
/** Key constant @type Number */
INSERT: 45,
/** Key constant @type Number */
DELETE: 46,
/** Key constant @type Number */
ZERO: 48,
/** Key constant @type Number */
ONE: 49,
/** Key constant @type Number */
TWO: 50,
/** Key constant @type Number */
THREE: 51,
/** Key constant @type Number */
FOUR: 52,
/** Key constant @type Number */
FIVE: 53,
/** Key constant @type Number */
SIX: 54,
/** Key constant @type Number */
SEVEN: 55,
/** Key constant @type Number */
EIGHT: 56,
/** Key constant @type Number */
NINE: 57,
/** Key constant @type Number */
A: 65,
/** Key constant @type Number */
B: 66,
/** Key constant @type Number */
C: 67,
/** Key constant @type Number */
D: 68,
/** Key constant @type Number */
E: 69,
/** Key constant @type Number */
F: 70,
/** Key constant @type Number */
G: 71,
/** Key constant @type Number */
H: 72,
/** Key constant @type Number */
I: 73,
/** Key constant @type Number */
J: 74,
/** Key constant @type Number */
K: 75,
/** Key constant @type Number */
L: 76,
/** Key constant @type Number */
M: 77,
/** Key constant @type Number */
N: 78,
/** Key constant @type Number */
O: 79,
/** Key constant @type Number */
P: 80,
/** Key constant @type Number */
Q: 81,
/** Key constant @type Number */
R: 82,
/** Key constant @type Number */
S: 83,
/** Key constant @type Number */
T: 84,
/** Key constant @type Number */
U: 85,
/** Key constant @type Number */
V: 86,
/** Key constant @type Number */
W: 87,
/** Key constant @type Number */
X: 88,
/** Key constant @type Number */
Y: 89,
/** Key constant @type Number */
Z: 90,
/** Key constant @type Number */
CONTEXT_MENU: 93,
/** Key constant @type Number */
NUM_ZERO: 96,
/** Key constant @type Number */
NUM_ONE: 97,
/** Key constant @type Number */
NUM_TWO: 98,
/** Key constant @type Number */
NUM_THREE: 99,
/** Key constant @type Number */
NUM_FOUR: 100,
/** Key constant @type Number */
NUM_FIVE: 101,
/** Key constant @type Number */
NUM_SIX: 102,
/** Key constant @type Number */
NUM_SEVEN: 103,
/** Key constant @type Number */
NUM_EIGHT: 104,
/** Key constant @type Number */
NUM_NINE: 105,
/** Key constant @type Number */
NUM_MULTIPLY: 106,
/** Key constant @type Number */
NUM_PLUS: 107,
/** Key constant @type Number */
NUM_MINUS: 109,
/** Key constant @type Number */
NUM_PERIOD: 110,
/** Key constant @type Number */
NUM_DIVISION: 111,
/** Key constant @type Number */
F1: 112,
/** Key constant @type Number */
F2: 113,
/** Key constant @type Number */
F3: 114,
/** Key constant @type Number */
F4: 115,
/** Key constant @type Number */
F5: 116,
/** Key constant @type Number */
F6: 117,
/** Key constant @type Number */
F7: 118,
/** Key constant @type Number */
F8: 119,
/** Key constant @type Number */
F9: 120,
/** Key constant @type Number */
F10: 121,
/** Key constant @type Number */
F11: 122,
/** Key constant @type Number */
F12: 123,
/** @private */
setEvent : function(e){
if(e == this || (e && e.browserEvent)){ // already wrapped
return e;
}
this.browserEvent = e;
if(e){
// normalize buttons
this.button = e.button ? btnMap[e.button] : (e.which ? e.which-1 : -1);
if(e.type == 'click' && this.button == -1){
this.button = 0;
}
this.type = e.type;
this.shiftKey = e.shiftKey;
// mac metaKey behaves like ctrlKey
this.ctrlKey = e.ctrlKey || e.metaKey;
this.altKey = e.altKey;
// in getKey these will be normalized for the mac
this.keyCode = e.keyCode;
this.charCode = e.charCode;
// cache the target for the delayed and or buffered events
this.target = E.getTarget(e);
// same for XY
this.xy = E.getXY(e);
}else{
this.button = -1;
this.shiftKey = false;
this.ctrlKey = false;
this.altKey = false;
this.keyCode = 0;
this.charCode = 0;
this.target = null;
this.xy = [0, 0];
}
return this;
},
/**
* Stop the event (preventDefault and stopPropagation)
*/
stopEvent : function(){
if(this.browserEvent){
if(this.browserEvent.type == 'mousedown'){
Ext.EventManager.stoppedMouseDownEvent.fire(this);
}
E.stopEvent(this.browserEvent);
}
},
/**
* Prevents the browsers default handling of the event.
*/
preventDefault : function(){
if(this.browserEvent){
E.preventDefault(this.browserEvent);
}
},
/** @private */
isNavKeyPress : function(){
var k = this.keyCode;
k = Ext.isSafari ? (safariKeys[k] || k) : k;
return (k >= 33 && k <= 40) || k == this.RETURN || k == this.TAB || k == this.ESC;
},
isSpecialKey : function(){
var k = this.keyCode;
k = Ext.isSafari ? (safariKeys[k] || k) : k;
return (this.type == 'keypress' && this.ctrlKey) ||
this.isNavKeyPress() ||
(k == this.BACKSPACE) || // Backspace
(k >= 16 && k <= 20) || // Shift, Ctrl, Alt, Pause, Caps Lock
(k >= 44 && k <= 45); // Print Screen, Insert
},
/**
* Cancels bubbling of the event.
*/
stopPropagation : function(){
if(this.browserEvent){
if(this.browserEvent.type == 'mousedown'){
Ext.EventManager.stoppedMouseDownEvent.fire(this);
}
E.stopPropagation(this.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(){
var k = this.keyCode || this.charCode;
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 time of the event.
* @return {Number}
*/
getTime : function(){
if(this.browserEvent){
return E.getTime(this.browserEvent);
}
return null;
},
/**
* 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(){
if(this.browserEvent){
return E.getRelatedTarget(this.browserEvent);
}
return 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 control, meta, shift or alt key was pressed during this event.
* @return {Boolean}
*/
hasModifier : function(){
return ((this.ctrlKey || this.altKey) || this.shiftKey) ? true : false;
},
/**
* 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){
var t = this[related ? "getRelatedTarget" : "getTarget"]();
return t && ((allowEl ? (t === Ext.getDom(el)) : false) || Ext.fly(el).contains(t));
},
getPoint : function(){
return new Ext.lib.Point(this.xy[0], this.xy[1]);
}
};
return new Ext.EventObjectImpl();
}();
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