/*!
|
* Ext JS Library 3.1.0
|
* Copyright(c) 2006-2009 Ext JS, LLC
|
* licensing@extjs.com
|
* http://www.extjs.com/license
|
*/
|
Ext.lib.Event = function() {
|
var loadComplete = false,
|
unloadListeners = {},
|
retryCount = 0,
|
onAvailStack = [],
|
_interval,
|
locked = false,
|
win = window,
|
doc = document,
|
|
// constants
|
POLL_RETRYS = 200,
|
POLL_INTERVAL = 20,
|
EL = 0,
|
TYPE = 0,
|
FN = 1,
|
WFN = 2,
|
OBJ = 2,
|
ADJ_SCOPE = 3,
|
SCROLLLEFT = 'scrollLeft',
|
SCROLLTOP = 'scrollTop',
|
UNLOAD = 'unload',
|
MOUSEOVER = 'mouseover',
|
MOUSEOUT = 'mouseout',
|
// private
|
doAdd = function() {
|
var ret;
|
if (win.addEventListener) {
|
ret = function(el, eventName, fn, capture) {
|
if (eventName == 'mouseenter') {
|
fn = fn.createInterceptor(checkRelatedTarget);
|
el.addEventListener(MOUSEOVER, fn, (capture));
|
} else if (eventName == 'mouseleave') {
|
fn = fn.createInterceptor(checkRelatedTarget);
|
el.addEventListener(MOUSEOUT, fn, (capture));
|
} else {
|
el.addEventListener(eventName, fn, (capture));
|
}
|
return fn;
|
};
|
} else if (win.attachEvent) {
|
ret = function(el, eventName, fn, capture) {
|
el.attachEvent("on" + eventName, fn);
|
return fn;
|
};
|
} else {
|
ret = function(){};
|
}
|
return ret;
|
}(),
|
// private
|
doRemove = function(){
|
var ret;
|
if (win.removeEventListener) {
|
ret = function (el, eventName, fn, capture) {
|
if (eventName == 'mouseenter') {
|
eventName = MOUSEOVER;
|
} else if (eventName == 'mouseleave') {
|
eventName = MOUSEOUT;
|
}
|
el.removeEventListener(eventName, fn, (capture));
|
};
|
} else if (win.detachEvent) {
|
ret = function (el, eventName, fn) {
|
el.detachEvent("on" + eventName, fn);
|
};
|
} else {
|
ret = function(){};
|
}
|
return ret;
|
}();
|
|
function checkRelatedTarget(e) {
|
return !elContains(e.currentTarget, pub.getRelatedTarget(e));
|
}
|
|
function elContains(parent, child) {
|
if(parent && parent.firstChild){
|
while(child) {
|
if(child === parent) {
|
return true;
|
}
|
child = child.parentNode;
|
if(child && (child.nodeType != 1)) {
|
child = null;
|
}
|
}
|
}
|
return false;
|
}
|
|
// private
|
function _tryPreloadAttach() {
|
var ret = false,
|
notAvail = [],
|
element, i, len, v,
|
tryAgain = !loadComplete || (retryCount > 0);
|
|
if (!locked) {
|
locked = true;
|
|
for (i = 0, len = onAvailStack.length; i < len; i++) {
|
v = onAvailStack[i];
|
if(v && (element = doc.getElementById(v.id))){
|
if(!v.checkReady || loadComplete || element.nextSibling || (doc && doc.body)) {
|
element = v.override ? (v.override === true ? v.obj : v.override) : element;
|
v.fn.call(element, v.obj);
|
v = null;
|
} else {
|
notAvail.push(v);
|
}
|
}
|
}
|
|
retryCount = (notAvail.length === 0) ? 0 : retryCount - 1;
|
|
if (tryAgain) {
|
startInterval();
|
} else {
|
clearInterval(_interval);
|
_interval = null;
|
}
|
|
ret = !(locked = false);
|
}
|
return ret;
|
}
|
|
// private
|
function startInterval() {
|
if(!_interval){
|
var callback = function() {
|
_tryPreloadAttach();
|
};
|
_interval = setInterval(callback, POLL_INTERVAL);
|
}
|
}
|
|
// private
|
function getScroll() {
|
var dd = doc.documentElement,
|
db = doc.body;
|
if(dd && (dd[SCROLLTOP] || dd[SCROLLLEFT])){
|
return [dd[SCROLLLEFT], dd[SCROLLTOP]];
|
}else if(db){
|
return [db[SCROLLLEFT], db[SCROLLTOP]];
|
}else{
|
return [0, 0];
|
}
|
}
|
|
// private
|
function getPageCoord (ev, xy) {
|
ev = ev.browserEvent || ev;
|
var coord = ev['page' + xy];
|
if (!coord && coord !== 0) {
|
coord = ev['client' + xy] || 0;
|
|
if (Ext.isIE) {
|
coord += getScroll()[xy == "X" ? 0 : 1];
|
}
|
}
|
|
return coord;
|
}
|
|
var pub = {
|
extAdapter: true,
|
onAvailable : function(p_id, p_fn, p_obj, p_override) {
|
onAvailStack.push({
|
id: p_id,
|
fn: p_fn,
|
obj: p_obj,
|
override: p_override,
|
checkReady: false });
|
|
retryCount = POLL_RETRYS;
|
startInterval();
|
},
|
|
// This function should ALWAYS be called from Ext.EventManager
|
addListener: function(el, eventName, fn) {
|
el = Ext.getDom(el);
|
if (el && fn) {
|
if (eventName == UNLOAD) {
|
if (unloadListeners[el.id] === undefined) {
|
unloadListeners[el.id] = [];
|
}
|
unloadListeners[el.id].push([eventName, fn]);
|
return fn;
|
}
|
return doAdd(el, eventName, fn, false);
|
}
|
return false;
|
},
|
|
// This function should ALWAYS be called from Ext.EventManager
|
removeListener: function(el, eventName, fn) {
|
el = Ext.getDom(el);
|
var i, len, li;
|
if (el && fn) {
|
if (eventName == UNLOAD) {
|
if (unloadListeners[id] !== undefined) {
|
for (i = 0, len = unloadListeners[id].length; i < len; i++) {
|
li = unloadListeners[id][i];
|
if (li && li[TYPE] == eventName && li[FN] == fn) {
|
unloadListeners[id].splice(i, 1);
|
}
|
}
|
}
|
return;
|
}
|
doRemove(el, eventName, fn, false);
|
}
|
},
|
|
getTarget : function(ev) {
|
ev = ev.browserEvent || ev;
|
return this.resolveTextNode(ev.target || ev.srcElement);
|
},
|
|
resolveTextNode : Ext.isGecko ? function(node){
|
if(!node){
|
return;
|
}
|
// work around firefox bug, https://bugzilla.mozilla.org/show_bug.cgi?id=101197
|
var s = HTMLElement.prototype.toString.call(node);
|
if(s == '[xpconnect wrapped native prototype]' || s == '[object XULElement]'){
|
return;
|
}
|
return node.nodeType == 3 ? node.parentNode : node;
|
} : function(node){
|
return node && node.nodeType == 3 ? node.parentNode : node;
|
},
|
|
getRelatedTarget : function(ev) {
|
ev = ev.browserEvent || ev;
|
return this.resolveTextNode(ev.relatedTarget ||
|
(ev.type == MOUSEOUT ? ev.toElement :
|
ev.type == MOUSEOVER ? ev.fromElement : null));
|
},
|
|
getPageX : function(ev) {
|
return getPageCoord(ev, "X");
|
},
|
|
getPageY : function(ev) {
|
return getPageCoord(ev, "Y");
|
},
|
|
|
getXY : function(ev) {
|
return [this.getPageX(ev), this.getPageY(ev)];
|
},
|
|
stopEvent : function(ev) {
|
this.stopPropagation(ev);
|
this.preventDefault(ev);
|
},
|
|
stopPropagation : function(ev) {
|
ev = ev.browserEvent || ev;
|
if (ev.stopPropagation) {
|
ev.stopPropagation();
|
} else {
|
ev.cancelBubble = true;
|
}
|
},
|
|
preventDefault : function(ev) {
|
ev = ev.browserEvent || ev;
|
if (ev.preventDefault) {
|
ev.preventDefault();
|
} else {
|
ev.returnValue = false;
|
}
|
},
|
|
getEvent : function(e) {
|
e = e || win.event;
|
if (!e) {
|
var c = this.getEvent.caller;
|
while (c) {
|
e = c.arguments[0];
|
if (e && Event == e.constructor) {
|
break;
|
}
|
c = c.caller;
|
}
|
}
|
return e;
|
},
|
|
getCharCode : function(ev) {
|
ev = ev.browserEvent || ev;
|
return ev.charCode || ev.keyCode || 0;
|
},
|
|
//clearCache: function() {},
|
// deprecated, call from EventManager
|
getListeners : function(el, eventName) {
|
Ext.EventManager.getListeners(el, eventName);
|
},
|
|
// deprecated, call from EventManager
|
purgeElement : function(el, recurse, eventName) {
|
Ext.EventManager.purgeElement(el, recurse, eventName);
|
},
|
|
_load : function(e) {
|
loadComplete = true;
|
var EU = Ext.lib.Event;
|
if (Ext.isIE && e !== true) {
|
// IE8 complains that _load is null or not an object
|
// so lets remove self via arguments.callee
|
doRemove(win, "load", arguments.callee);
|
}
|
},
|
|
_unload : function(e) {
|
var EU = Ext.lib.Event,
|
i, j, l, v, ul, id, len, index, scope;
|
|
|
for (id in unloadListeners) {
|
ul = unloadListeners[id];
|
for (i = 0, len = ul.length; i < len; i++) {
|
v = ul[i];
|
if (v) {
|
try{
|
scope = v[ADJ_SCOPE] ? (v[ADJ_SCOPE] === true ? v[OBJ] : v[ADJ_SCOPE]) : win;
|
v[FN].call(scope, EU.getEvent(e), v[OBJ]);
|
}catch(ex){}
|
}
|
}
|
};
|
|
unloadListeners = null;
|
Ext.EventManager._unload();
|
|
doRemove(win, UNLOAD, EU._unload);
|
}
|
};
|
|
// Initialize stuff.
|
pub.on = pub.addListener;
|
pub.un = pub.removeListener;
|
if (doc && doc.body) {
|
pub._load(true);
|
} else {
|
doAdd(win, "load", pub._load);
|
}
|
doAdd(win, UNLOAD, pub._unload);
|
_tryPreloadAttach();
|
|
return pub;
|
}();
|
