4 rparentsprev = /^(?:parents|prevUntil|prevAll)/,
5 // Note: This RegExp should be improved, or likely pulled from Sizzle
8 isSimple = /^.[^:#\[\.,]*$/,
9 slice = Array.prototype.slice,
10 POS = jQuery.expr.match.POS;
13 find: function( selector ) {
14 // Handle "> div" child selectors and pass them to .children()
15 if ( typeof selector === "string" && rchild.test( selector ) ) {
16 return this.children( selector.replace( rchild, "" ) );
19 var ret = this.pushStack( "", "find", selector ), length = 0;
21 for ( var i = 0, l = this.length; i < l; i++ ) {
23 jQuery.find( selector, this[i], ret );
26 // Make sure that the results are unique
27 for ( var n = length; n < ret.length; n++ ) {
28 for ( var r = 0; r < length; r++ ) {
29 if ( ret[r] === ret[n] ) {
41 has: function( target ) {
42 var targets = jQuery( target );
43 return this.filter(function() {
44 for ( var i = 0, l = targets.length; i < l; i++ ) {
45 if ( jQuery.contains( this, targets[i] ) ) {
52 not: function( selector ) {
53 return this.pushStack( winnow(this, selector, false), "not", selector);
56 filter: function( selector ) {
57 return this.pushStack( winnow(this, selector, true), "filter", selector );
60 is: function( selector ) {
61 return !!selector && jQuery.filter( selector, this ).length > 0;
64 closest: function( selectors, context ) {
65 var ret = [], i, l, cur = this[0];
67 if ( jQuery.isArray( selectors ) ) {
68 var match, matches = {}, selector, level = 1;
70 if ( cur && selectors.length ) {
71 for ( i = 0, l = selectors.length; i < l; i++ ) {
72 selector = selectors[i];
74 if ( !matches[selector] ) {
75 matches[selector] = jQuery.expr.match.POS.test( selector ) ?
76 jQuery( selector, context || this.context ) :
81 while ( cur && cur.ownerDocument && cur !== context ) {
82 for ( selector in matches ) {
83 match = matches[selector];
85 if ( match.jquery ? match.index(cur) > -1 : jQuery(cur).is(match) ) {
86 ret.push({ selector: selector, elem: cur, level: level });
98 var pos = POS.test( selectors ) ?
99 jQuery( selectors, context || this.context ) : null;
101 for ( i = 0, l = this.length; i < l; i++ ) {
105 if ( pos ? pos.index(cur) > -1 : jQuery.find.matchesSelector(cur, selectors) ) {
110 cur = cur.parentNode;
111 if ( !cur.ownerDocument || cur === context ) {
118 ret = ret.length > 1 ? jQuery.unique(ret) : ret;
120 return this.pushStack( ret, "closest", selectors );
123 // Determine the position of an element within
124 // the matched set of elements
125 index: function( elem ) {
126 if ( !elem || typeof elem === "string" ) {
127 return jQuery.inArray( this[0],
128 // If it receives a string, the selector is used
129 // If it receives nothing, the siblings are used
130 elem ? jQuery( elem ) : this.parent().children() );
132 // Locate the position of the desired element
133 return jQuery.inArray(
134 // If it receives a jQuery object, the first element is used
135 elem.jquery ? elem[0] : elem, this );
138 add: function( selector, context ) {
139 var set = typeof selector === "string" ?
140 jQuery( selector, context || this.context ) :
141 jQuery.makeArray( selector ),
142 all = jQuery.merge( this.get(), set );
144 return this.pushStack( isDisconnected( set[0] ) || isDisconnected( all[0] ) ?
146 jQuery.unique( all ) );
149 andSelf: function() {
150 return this.add( this.prevObject );
154 // A painfully simple check to see if an element is disconnected
155 // from a document (should be improved, where feasible).
156 function isDisconnected( node ) {
157 return !node || !node.parentNode || node.parentNode.nodeType === 11;
161 parent: function( elem ) {
162 var parent = elem.parentNode;
163 return parent && parent.nodeType !== 11 ? parent : null;
165 parents: function( elem ) {
166 return jQuery.dir( elem, "parentNode" );
168 parentsUntil: function( elem, i, until ) {
169 return jQuery.dir( elem, "parentNode", until );
171 next: function( elem ) {
172 return jQuery.nth( elem, 2, "nextSibling" );
174 prev: function( elem ) {
175 return jQuery.nth( elem, 2, "previousSibling" );
177 nextAll: function( elem ) {
178 return jQuery.dir( elem, "nextSibling" );
180 prevAll: function( elem ) {
181 return jQuery.dir( elem, "previousSibling" );
183 nextUntil: function( elem, i, until ) {
184 return jQuery.dir( elem, "nextSibling", until );
186 prevUntil: function( elem, i, until ) {
187 return jQuery.dir( elem, "previousSibling", until );
189 siblings: function( elem ) {
190 return jQuery.sibling( elem.parentNode.firstChild, elem );
192 children: function( elem ) {
193 return jQuery.sibling( elem.firstChild );
195 contents: function( elem ) {
196 return jQuery.nodeName( elem, "iframe" ) ?
197 elem.contentDocument || elem.contentWindow.document :
198 jQuery.makeArray( elem.childNodes );
200 }, function( name, fn ) {
201 jQuery.fn[ name ] = function( until, selector ) {
202 var ret = jQuery.map( this, fn, until );
204 if ( !runtil.test( name ) ) {
208 if ( selector && typeof selector === "string" ) {
209 ret = jQuery.filter( selector, ret );
212 ret = this.length > 1 ? jQuery.unique( ret ) : ret;
214 if ( (this.length > 1 || rmultiselector.test( selector )) && rparentsprev.test( name ) ) {
218 return this.pushStack( ret, name, slice.call(arguments).join(",") );
223 filter: function( expr, elems, not ) {
225 expr = ":not(" + expr + ")";
228 return elems.length === 1 ?
229 jQuery.find.matchesSelector(elems[0], expr) ? [ elems[0] ] : [] :
230 jQuery.find.matches(expr, elems);
233 dir: function( elem, dir, until ) {
234 var matched = [], cur = elem[dir];
235 while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {
236 if ( cur.nodeType === 1 ) {
244 nth: function( cur, result, dir, elem ) {
245 result = result || 1;
248 for ( ; cur; cur = cur[dir] ) {
249 if ( cur.nodeType === 1 && ++num === result ) {
257 sibling: function( n, elem ) {
260 for ( ; n; n = n.nextSibling ) {
261 if ( n.nodeType === 1 && n !== elem ) {
270 // Implement the identical functionality for filter and not
271 function winnow( elements, qualifier, keep ) {
272 if ( jQuery.isFunction( qualifier ) ) {
273 return jQuery.grep(elements, function( elem, i ) {
274 var retVal = !!qualifier.call( elem, i, elem );
275 return retVal === keep;
278 } else if ( qualifier.nodeType ) {
279 return jQuery.grep(elements, function( elem, i ) {
280 return (elem === qualifier) === keep;
283 } else if ( typeof qualifier === "string" ) {
284 var filtered = jQuery.grep(elements, function( elem ) {
285 return elem.nodeType === 1;
288 if ( isSimple.test( qualifier ) ) {
289 return jQuery.filter(qualifier, filtered, !keep);
291 qualifier = jQuery.filter( qualifier, filtered );
295 return jQuery.grep(elements, function( elem, i ) {
296 return (jQuery.inArray( elem, qualifier ) >= 0) === keep;