/*
# ***** BEGIN LICENSE BLOCK *****
# Assets Library - The open source PHP/JavaScript/CSS library of Les Ateliers Pierrot
# Copyleft (c) 2013-2014 Pierre Cassat and contributors
# <www.ateliers-pierrot.fr> - <contact@ateliers-pierrot.fr>
# License GPL-3.0 <http://www.opensource.org/licenses/gpl-3.0.html>
# Sources <http://github.com/atelierspierrot/assets-library>
#
# Ce programme est un logiciel libre distribué sous licence GNU/GPL.
#
# ***** END LICENSE BLOCK ***** */
/**
* Get an element positions
* @param object element The element from which to get the attribute
* @return object An array like ( left:X, top:Y, right:W, bottom:Z, width:w, height:h )
*/
function getOffset( element ) {
if (element===undefined || element===null) {
return null;
}
if (element.getBoundingClientRect!==undefined && typeof element.getBoundingClientRect==='function') {
var val = element.getBoundingClientRect();
if (val!==undefined && val!==null) { return val; }
}
var _el=element, _x=0, _y=0;
while( element && !isNaN( element.offsetLeft ) && !isNaN( element.offsetTop ) ) {
_x += element.offsetLeft - element.scrollLeft;
_y += element.offsetTop - element.scrollTop;
element = element.offsetParent;
}
return {
top: _y, bottom: _y+_el.offsetHeight,
left: _x, right: _x+_el.offsetWidth,
width: _el.offsetWidth, height: _el.offsetHeight
};
}
/**
* Extend the Element prototype to allow "element.getOffset(name)"
*/
Element.prototype.getOffset = function() {
getOffset(this);
};
// Endfile