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var selector_hasDuplicate,
matches = docElem.matchesSelector ||
docElem.mozMatchesSelector ||
docElem.webkitMatchesSelector ||
docElem.oMatchesSelector ||
docElem.msMatchesSelector,
selector_sortOrder = function( a, b ) {
// Flag for duplicate removal
if ( a === b ) {
selector_hasDuplicate = true;
return 0;
}
var compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );
if ( compare ) {
// Disconnected nodes
if ( compare & 1 ) {
// Choose the first element that is related to our document
if ( a === document || jQuery.contains(document, a) ) {
return -1;
}
if ( b === document || jQuery.contains(document, b) ) {
return 1;
}
// Maintain original order
return 0;
}
return compare & 4 ? -1 : 1;
}
// Not directly comparable, sort on existence of method
return a.compareDocumentPosition ? -1 : 1;
};
jQuery.extend({
find: function( selector, context, results, seed ) {
var elem,
i = 0;
results = results || [];
context = context || document;
if ( seed ) {
while ( (elem = seed[i++]) ) {
if ( jQuery.find.matchesSelector(elem, selector) ) {
results.push( elem );
}
}
} else {
jQuery.merge( results, context.querySelectorAll(selector) );
}
return results;
},
unique: function( results ) {
var elem,
duplicates = [],
i = 0,
j = 0;
selector_hasDuplicate = false;
results.sort( selector_sortOrder );
if ( selector_hasDuplicate ) {
while ( (elem = results[i++]) ) {
if ( elem === results[ i ] ) {
j = duplicates.push( i );
}
}
while ( j-- ) {
results.splice( duplicates[ j ], 1 );
}
}
return results;
},
text: function( elem ) {
var node,
ret = "",
i = 0,
nodeType = elem.nodeType;
if ( !nodeType ) {
// If no nodeType, this is expected to be an array
while ( (node = elem[i++]) ) {
// Do not traverse comment nodes
ret += jQuery.text( node );
}
} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
// Use textContent for elements
return elem.textContent;
} else if ( nodeType === 3 || nodeType === 4 ) {
return elem.nodeValue;
}
// Do not include comment or processing instruction nodes
return ret;
},
contains: function( a, b ) {
var adown = a.nodeType === 9 ? a.documentElement : a,
bup = b && b.parentNode;
return a === bup || !!( bup && bup.nodeType === 1 && adown.contains(bup) );
},
isXMLDoc: function( elem ) {
return (elem.ownerDocument || elem).documentElement.nodeName !== "HTML";
},
expr: {
match: {
needsContext: /^[\x20\t\r\n\f]*[>+~]/
}
}
});
jQuery.extend( jQuery.find, {
matches: function( expr, elements ) {
return jQuery.find( expr, null, null, elements );
},
matchesSelector: function( elem, expr ) {
return matches.call( elem, expr );
}
});
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