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Bug #7608 elem.runtimeStyle throws exception in Opera

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rwldrn 2011-01-05 13:32:59 -05:00
parent cbf591152c
commit 8099cdce80
2 changed files with 30 additions and 4 deletions
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12
src/css.js
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@ -263,8 +263,9 @@ if ( document.defaultView && document.defaultView.getComputedStyle ) {
if ( document.documentElement.currentStyle ) {
currentStyle = function( elem, name ) {
var left, rsLeft,
var left,
ret = elem.currentStyle && elem.currentStyle[ name ],
rsLeft = elem.runtimeStyle && elem.runtimeStyle[ name ],
style = elem.style;
// From the awesome hack by Dean Edwards
@ -275,16 +276,19 @@ if ( document.documentElement.currentStyle ) {
if ( !rnumpx.test( ret ) && rnum.test( ret ) ) {
// Remember the original values
left = style.left;
rsLeft = elem.runtimeStyle.left;
// Put in the new values to get a computed value out
elem.runtimeStyle.left = elem.currentStyle.left;
if ( rsLeft ) {
elem.runtimeStyle.left = elem.currentStyle.left;
}
style.left = name === "fontSize" ? "1em" : (ret || 0);
ret = style.pixelLeft + "px";
// Revert the changed values
style.left = left;
elem.runtimeStyle.left = rsLeft;
if ( rsLeft ) {
elem.runtimeStyle.left = rsLeft;
}
}
return ret === "" ? "auto" : ret;