/*!
|
* Ext JS Library 3.1.0
|
* Copyright(c) 2006-2009 Ext JS, LLC
|
* licensing@extjs.com
|
* http://www.extjs.com/license
|
*/
|
/**
|
* @class Ext.Element
|
*/
|
Ext.Element.addMethods({
|
/**
|
* Returns true if this element is scrollable.
|
* @return {Boolean}
|
*/
|
isScrollable : function(){
|
var dom = this.dom;
|
return dom.scrollHeight > dom.clientHeight || dom.scrollWidth > dom.clientWidth;
|
},
|
|
/**
|
* Scrolls this element the specified scroll point. It does NOT do bounds checking so if you scroll to a weird value it will try to do it. For auto bounds checking, use scroll().
|
* @param {String} side Either "left" for scrollLeft values or "top" for scrollTop values.
|
* @param {Number} value The new scroll value.
|
* @return {Element} this
|
*/
|
scrollTo : function(side, value){
|
this.dom["scroll" + (/top/i.test(side) ? "Top" : "Left")] = value;
|
return this;
|
},
|
|
/**
|
* Returns the current scroll position of the element.
|
* @return {Object} An object containing the scroll position in the format {left: (scrollLeft), top: (scrollTop)}
|
*/
|
getScroll : function(){
|
var d = this.dom,
|
doc = document,
|
body = doc.body,
|
docElement = doc.documentElement,
|
l,
|
t,
|
ret;
|
|
if(d == doc || d == body){
|
if(Ext.isIE && Ext.isStrict){
|
l = docElement.scrollLeft;
|
t = docElement.scrollTop;
|
}else{
|
l = window.pageXOffset;
|
t = window.pageYOffset;
|
}
|
ret = {left: l || (body ? body.scrollLeft : 0), top: t || (body ? body.scrollTop : 0)};
|
}else{
|
ret = {left: d.scrollLeft, top: d.scrollTop};
|
}
|
return ret;
|
}
|
});
|
