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Brought back the compareDocumentPosition code. While it is redundant in Firefox it's much faster than using indexOf.

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This commit is contained in:
John Resig 2009-02-17 17:43:05 +00:00
parent 8d9aa015c1
commit 4b7e1c906f
2 changed files with 12 additions and 4 deletions
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12
src/selector.js
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@ -684,7 +684,15 @@ try {
var sortOrder;
if ( Array.prototype.indexOf ) {
if ( document.documentElement.compareDocumentPosition ) {
sortOrder = function( a, b ) {
var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
if ( ret === 0 ) {
hasDuplicate = true;
}
return ret;
};
} else if ( Array.prototype.indexOf ) {
var indexOf = Array.prototype.indexOf,
allSort = document.getElementsByTagName("*");
@ -695,7 +703,7 @@ if ( Array.prototype.indexOf ) {
}
return ret;
};
} else if ( document.documentElement.sourceIndex === 1 ) {
} else if ( "sourceIndex" in document.documentElement ) {
sortOrder = function( a, b ) {
var ret = a.sourceIndex - b.sourceIndex;
if ( ret === 0 ) {

4
test/unit/selector.js
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@ -1,7 +1,7 @@
module("selector");
test("element", function() {
expect(17);
expect(18);
reset();
ok( jQuery("*").size() >= 30, "Select all" );
@ -25,7 +25,7 @@ test("element", function() {
ok( jQuery("#lengthtest input").length, '<input name="length"> cannot be found under IE, see #945' );
// Check for unique-ness and sort order
//isSet( jQuery("*"), jQuery("*, *"), "Check for duplicates: *, *" );
isSet( jQuery("*"), jQuery("*, *"), "Check for duplicates: *, *" );
isSet( jQuery("p"), jQuery("p, div p"), "Check for duplicates: p, div p" );
t( "Checking sort order", "h2, h1", ["header", "banner", "userAgent"] );