/**
* @class Ext.Element
*/
Ext.Element.addMethods({
/**
* Stops the specified event(s) from bubbling and optionally prevents the default action
* @param {String/Array} eventName an event / array of events to stop from bubbling
* @param {Boolean} preventDefault (optional) true to prevent the default action too
* @return {Ext.Element} this
*/
swallowEvent : function(eventName, preventDefault){
var me = this;
function fn(e){
e.stopPropagation();
if(preventDefault){
e.preventDefault();
}
}
if(Ext.isArray(eventName)){
Ext.each(eventName, function(e) {
me.on(e, fn);
});
return me;
}
me.on(eventName, fn);
return me;
},
/**
* Create an event handler on this element such that when the event fires and is handled by this element,
* it will be relayed to another object (i.e., fired again as if it originated from that object instead).
* @param {String} eventName The type of event to relay
* @param {Object} object Any object that extends {@link Ext.util.Observable} that will provide the context
* for firing the relayed event
*/
relayEvent : function(eventName, observable){
this.on(eventName, function(e){
observable.fireEvent(eventName, e);
});
},
/**
* Removes worthless text nodes
* @param {Boolean} forceReclean (optional) By default the element
* keeps track if it has been cleaned already so
* you can call this over and over. However, if you update the element and
* need to force a reclean, you can pass true.
*/
clean : function(forceReclean){
var me = this,
dom = me.dom,
n = dom.firstChild,
ni = -1;
if(Ext.Element.data(dom, 'isCleaned') && forceReclean !== true){
return me;
}
while(n){
var nx = n.nextSibling;
if(n.nodeType == 3 && !/\S/.test(n.nodeValue)){
dom.removeChild(n);
}else{
n.nodeIndex = ++ni;
}
n = nx;
}
Ext.Element.data(dom, 'isCleaned', true);
return me;
},
/**
* Direct access to the Updater {@link Ext.Updater#update} method. The method takes the same object
* parameter as {@link Ext.Updater#update}
* @return {Ext.Element} this
*/
load : function(){
var um = this.getUpdater();
um.update.apply(um, arguments);
return this;
},
/**
* Gets this element's {@link Ext.Updater Updater}
* @return {Ext.Updater} The Updater
*/
getUpdater : function(){
return this.updateManager || (this.updateManager = new Ext.Updater(this));
},
/**
* Update the innerHTML of this element, optionally searching for and processing scripts
* @param {String} html The new HTML
* @param {Boolean} loadScripts (optional) True to look for and process scripts (defaults to false)
* @param {Function} callback (optional) For async script loading you can be notified when the update completes
* @return {Ext.Element} this
*/
update : function(html, loadScripts, callback){
html = html || "";
if(loadScripts !== true){
this.dom.innerHTML = html;
if(Ext.isFunction(callback)){
callback();
}
return this;
}
var id = Ext.id(),
dom = this.dom;
html += '';
Ext.lib.Event.onAvailable(id, function(){
var DOC = document,
hd = DOC.getElementsByTagName("head")[0],
re = /(?: