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Switch to using createRange for element comparision instead of Array indexOf checks...
author
John Resig
<jeresig@gmail.com>
Tue, 17 Feb 2009 17:51:50 +0000
(17:51 +0000)
committer
John Resig
<jeresig@gmail.com>
Tue, 17 Feb 2009 17:51:50 +0000
(17:51 +0000)
src/selector.js
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diff --git
a/src/selector.js
b/src/selector.js
index
6538d97
..
3e1d711
100644
(file)
--- a/
src/selector.js
+++ b/
src/selector.js
@@
-692,20
+692,22
@@
if ( document.documentElement.compareDocumentPosition ) {
}
return ret;
};
}
return ret;
};
-} else if ( Array.prototype.indexOf ) {
- var indexOf = Array.prototype.indexOf,
- allSort = document.getElementsByTagName("*");
-
+} else if ( "sourceIndex" in document.documentElement ) {
sortOrder = function( a, b ) {
sortOrder = function( a, b ) {
- var ret = indexOf.call( allSort, a ) - indexOf.call( allSort, b );
+ var ret = a.sourceIndex - b.sourceIndex;
if ( ret === 0 ) {
hasDuplicate = true;
}
return ret;
};
if ( ret === 0 ) {
hasDuplicate = true;
}
return ret;
};
-} else if ( "sourceIndex" in document.documentElement ) {
+} else if ( document.createRange ) {
sortOrder = function( a, b ) {
sortOrder = function( a, b ) {
- var ret = a.sourceIndex - b.sourceIndex;
+ var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
+ aRange.selectNode(a);
+ aRange.collapse(true);
+ bRange.selectNode(b);
+ bRange.collapse(true);
+ var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
if ( ret === 0 ) {
hasDuplicate = true;
}
if ( ret === 0 ) {
hasDuplicate = true;
}