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Position: Cache the scrollbarWidth calculation result

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This commit is contained in:
Jörn Zaefferer
2012-04-13 15:12:37 +02:00
parent 7dcfae7da2
commit cb67eb535c
1 changed files with 6 additions and 2 deletions
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8
ui/jquery.ui.position.js vendored
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@@ -16,10 +16,14 @@ var rhorizontal = /left|center|right/,
roffset = /[\+\-]\d+%?/,
rposition = /^\w+/,
rpercent = /%$/,
_position = $.fn.position;
_position = $.fn.position,
cachedScrollbarWidth;
$.position = {
scrollbarWidth: function() {
if ( cachedScrollbarWidth !== undefined ) {
return cachedScrollbarWidth;
}
var w1, w2,
div = $( "<div style='display:block;width:50px;height:50px;overflow:hidden;'><div style='height:100px;width:auto;'></div></div>" ),
innerDiv = div.children()[0];
@@ -36,7 +40,7 @@ $.position = {
div.remove();
return w1 - w2;
return (cachedScrollbarWidth = w1 - w2);
},
getScrollInfo: function( within ) {
var overflowX = within.isWindow ? "" : within.element.css( "overflow-x" ),