4 rparentsprev = /^(?:parents|prevUntil|prevAll)/,
5 // Note: This RegExp should be improved, or likely pulled from Sizzle
8 isSimple = /^.[^:#\[\.,]*$/,
9 slice = Array.prototype.slice;
11 var POS = jQuery.expr.match.POS;
14 find: function( selector ) {
15 // Handle "> div" child selectors and pass them to .children()
16 if ( typeof selector === "string" && rchild.test( selector ) ) {
17 return this.children( selector.replace( rchild, "" ) );
20 var ret = this.pushStack( "", "find", selector ), length = 0;
22 for ( var i = 0, l = this.length; i < l; i++ ) {
24 jQuery.find( selector, this[i], ret );
27 // Make sure that the results are unique
28 for ( var n = length; n < ret.length; n++ ) {
29 for ( var r = 0; r < length; r++ ) {
30 if ( ret[r] === ret[n] ) {
42 has: function( target ) {
43 var targets = jQuery( target );
44 return this.filter(function() {
45 for ( var i = 0, l = targets.length; i < l; i++ ) {
46 if ( jQuery.contains( this, targets[i] ) ) {
53 not: function( selector ) {
54 return this.pushStack( winnow(this, selector, false), "not", selector);
57 filter: function( selector ) {
58 return this.pushStack( winnow(this, selector, true), "filter", selector );
61 is: function( selector ) {
62 return !!selector && jQuery.filter( selector, this ).length > 0;
65 closest: function( selectors, context ) {
68 if ( jQuery.isArray( selectors ) ) {
69 var cur = this[0], match, matches = {}, selector, level = 1;
72 if ( cur && selectors.length ) {
73 for ( var i = 0, l = selectors.length; i < l; i++ ) {
74 selector = selectors[i];
76 if ( !matches[selector] ) {
77 matches[selector] = jQuery.expr.match.POS.test( selector ) ?
78 jQuery( selector, context || this.context ) :
83 while ( cur && cur.ownerDocument && cur !== context ) {
84 for ( selector in matches ) {
85 match = matches[selector];
87 if ( match.jquery ? match.index(cur) > -1 : jQuery(cur).is(match) ) {
88 ret.push({ selector: selector, elem: cur, level: level });
100 var pos = POS.test( selectors ) ?
101 jQuery( selectors, context || this.context ) : null;
105 for ( var i=0,j=this.length; i<j; i++ ) {
109 if ( pos ? pos.index(cur) > -1 : jQuery.find.matches(selectors, [cur]).length ) {
113 cur = cur.parentNode;
114 if ( !cur.ownerDocument || cur === context ) {
121 ret = ret.length > 1 ? jQuery.unique(ret) : ret;
123 return this.pushStack( ret, "closest", selectors );
126 // Determine the position of an element within
127 // the matched set of elements
128 index: function( elem ) {
129 if ( !elem || typeof elem === "string" ) {
130 return jQuery.inArray( this[0],
131 // If it receives a string, the selector is used
132 // If it receives nothing, the siblings are used
133 elem ? jQuery( elem ) : this.parent().children() );
135 // Locate the position of the desired element
136 return jQuery.inArray(
137 // If it receives a jQuery object, the first element is used
138 elem.jquery ? elem[0] : elem, this );
141 add: function( selector, context ) {
142 var set = typeof selector === "string" ?
143 jQuery( selector, context || this.context ) :
144 jQuery.makeArray( selector ),
145 all = jQuery.merge( this.get(), set );
147 return this.pushStack( isDisconnected( set[0] ) || isDisconnected( all[0] ) ?
149 jQuery.unique( all ) );
152 andSelf: function() {
153 return this.add( this.prevObject );
157 // A painfully simple check to see if an element is disconnected
158 // from a document (should be improved, where feasible).
159 function isDisconnected( node ) {
160 return !node || !node.parentNode || node.parentNode.nodeType === 11;
164 parent: function( elem ) {
165 var parent = elem.parentNode;
166 return parent && parent.nodeType !== 11 ? parent : null;
168 parents: function( elem ) {
169 return jQuery.dir( elem, "parentNode" );
171 parentsUntil: function( elem, i, until ) {
172 return jQuery.dir( elem, "parentNode", until );
174 next: function( elem ) {
175 return jQuery.nth( elem, 2, "nextSibling" );
177 prev: function( elem ) {
178 return jQuery.nth( elem, 2, "previousSibling" );
180 nextAll: function( elem ) {
181 return jQuery.dir( elem, "nextSibling" );
183 prevAll: function( elem ) {
184 return jQuery.dir( elem, "previousSibling" );
186 nextUntil: function( elem, i, until ) {
187 return jQuery.dir( elem, "nextSibling", until );
189 prevUntil: function( elem, i, until ) {
190 return jQuery.dir( elem, "previousSibling", until );
192 siblings: function( elem ) {
193 return jQuery.sibling( elem.parentNode.firstChild, elem );
195 children: function( elem ) {
196 return jQuery.sibling( elem.firstChild );
198 contents: function( elem ) {
199 return jQuery.nodeName( elem, "iframe" ) ?
200 elem.contentDocument || elem.contentWindow.document :
201 jQuery.makeArray( elem.childNodes );
203 }, function( name, fn ) {
204 jQuery.fn[ name ] = function( until, selector ) {
205 var ret = jQuery.map( this, fn, until );
207 if ( !runtil.test( name ) ) {
211 if ( selector && typeof selector === "string" ) {
212 ret = jQuery.filter( selector, ret );
215 ret = this.length > 1 ? jQuery.unique( ret ) : ret;
217 if ( (this.length > 1 || rmultiselector.test( selector )) && rparentsprev.test( name ) ) {
221 return this.pushStack( ret, name, slice.call(arguments).join(",") );
226 filter: function( expr, elems, not ) {
228 expr = ":not(" + expr + ")";
231 return jQuery.find.matches(expr, elems);
234 dir: function( elem, dir, until ) {
235 var matched = [], cur = elem[dir];
236 while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {
237 if ( cur.nodeType === 1 ) {
245 nth: function( cur, result, dir, elem ) {
246 result = result || 1;
249 for ( ; cur; cur = cur[dir] ) {
250 if ( cur.nodeType === 1 && ++num === result ) {
258 sibling: function( n, elem ) {
261 for ( ; n; n = n.nextSibling ) {
262 if ( n.nodeType === 1 && n !== elem ) {
271 // Implement the identical functionality for filter and not
272 function winnow( elements, qualifier, keep ) {
273 if ( jQuery.isFunction( qualifier ) ) {
274 return jQuery.grep(elements, function( elem, i ) {
275 var retVal = !!qualifier.call( elem, i, elem );
276 return retVal === keep;
279 } else if ( qualifier.nodeType ) {
280 return jQuery.grep(elements, function( elem, i ) {
281 return (elem === qualifier) === keep;
284 } else if ( typeof qualifier === "string" ) {
285 var filtered = jQuery.grep(elements, function( elem ) {
286 return elem.nodeType === 1;
289 if ( isSimple.test( qualifier ) ) {
290 return jQuery.filter(qualifier, filtered, !keep);
292 qualifier = jQuery.filter( qualifier, filtered );
296 return jQuery.grep(elements, function( elem, i ) {
297 return (jQuery.inArray( elem, qualifier ) >= 0) === keep;