3 ], function( jQuery ) {
6 * Optional (non-Sizzle) selector module for custom builds.
8 * Note that this DOES NOT SUPPORT many documented jQuery
9 * features in exchange for its smaller size:
11 * Attribute not equal selector
12 * Positional selectors (:first; :eq(n); :odd; etc.)
13 * Type selectors (:input; :checkbox; :button; etc.)
14 * State-based selectors (:animated; :visible; :hidden; etc.)
16 * :not(complex selector)
17 * custom selectors via Sizzle extensions
18 * Leading combinators (e.g., $collection.find("> *"))
19 * Reliable functionality on XML fragments
20 * Requiring all parts of a selector to match elements under context
21 * (e.g., $div.find("div > *") now matches children of $div)
22 * Matching against non-elements
23 * Reliable sorting of disconnected nodes
24 * querySelectorAll bug fixes (e.g., unreliable :focus on WebKit)
26 * If any of these are unacceptable tradeoffs, either use Sizzle or
27 * customize this stub for the project's specific needs.
30 var docElem = window.document.documentElement,
31 selector_hasDuplicate,
32 matches = docElem.matches ||
33 docElem.webkitMatchesSelector ||
34 docElem.mozMatchesSelector ||
35 docElem.oMatchesSelector ||
36 docElem.msMatchesSelector,
37 selector_sortOrder = function( a, b ) {
38 // Flag for duplicate removal
40 selector_hasDuplicate = true;
44 var compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );
50 // Choose the first element that is related to our document
51 if ( a === document || jQuery.contains(document, a) ) {
54 if ( b === document || jQuery.contains(document, b) ) {
58 // Maintain original order
62 return compare & 4 ? -1 : 1;
65 // Not directly comparable, sort on existence of method
66 return a.compareDocumentPosition ? -1 : 1;
70 find: function( selector, context, results, seed ) {
74 results = results || [];
75 context = context || document;
77 // Same basic safeguard as Sizzle
78 if ( !selector || typeof selector !== "string" ) {
82 // Early return if context is not an element or document
83 if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
88 while ( (elem = seed[i++]) ) {
89 if ( jQuery.find.matchesSelector(elem, selector) ) {
94 jQuery.merge( results, context.querySelectorAll(selector) );
99 unique: function( results ) {
105 selector_hasDuplicate = false;
106 results.sort( selector_sortOrder );
108 if ( selector_hasDuplicate ) {
109 while ( (elem = results[i++]) ) {
110 if ( elem === results[ i ] ) {
111 j = duplicates.push( i );
115 results.splice( duplicates[ j ], 1 );
121 text: function( elem ) {
125 nodeType = elem.nodeType;
128 // If no nodeType, this is expected to be an array
129 while ( (node = elem[i++]) ) {
130 // Do not traverse comment nodes
131 ret += jQuery.text( node );
133 } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
134 // Use textContent for elements
135 return elem.textContent;
136 } else if ( nodeType === 3 || nodeType === 4 ) {
137 return elem.nodeValue;
139 // Do not include comment or processing instruction nodes
143 contains: function( a, b ) {
144 var adown = a.nodeType === 9 ? a.documentElement : a,
145 bup = b && b.parentNode;
146 return a === bup || !!( bup && bup.nodeType === 1 && adown.contains(bup) );
148 isXMLDoc: function( elem ) {
149 return (elem.ownerDocument || elem).documentElement.nodeName !== "HTML";
154 bool: /^(?:checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped)$/i,
155 needsContext: /^[\x20\t\r\n\f]*[>+~]/
160 jQuery.extend( jQuery.find, {
161 matches: function( expr, elements ) {
162 return jQuery.find( expr, null, null, elements );
164 matchesSelector: function( elem, expr ) {
165 return matches.call( elem, expr );
167 attr: function( elem, name ) {
168 return elem.getAttribute( name );