1 var winnow = function( elements, qualifier, keep ) {
2 if(jQuery.isFunction( qualifier )) {
3 return jQuery.grep(elements, function(elem, i) {
4 return !!qualifier.call( elem, i ) === keep;
6 } else if( qualifier.nodeType ) {
7 return jQuery.grep(elements, function(elem, i) {
8 return (elem === qualifier) === keep;
10 } else if( typeof qualifier === "string" ) {
11 var filtered = jQuery.grep(elements, function(elem) { return elem.nodeType === 1; });
13 if(isSimple.test( qualifier )) {
14 return jQuery.filter(qualifier, filtered, !keep);
16 qualifier = jQuery.filter( qualifier, elements );
20 return jQuery.grep(elements, function(elem, i) {
21 return (jQuery.inArray( elem, qualifier ) >= 0) === keep;
26 find: function( selector ) {
27 var ret = this.pushStack( "", "find", selector ), length = 0;
29 for ( var i = 0, l = this.length; i < l; i++ ) {
31 jQuery.find( selector, this[i], ret );
34 // Make sure that the results are unique
35 for ( var n = length; n < ret.length; n++ ) {
36 for ( var r = 0; r < length; r++ ) {
37 if ( ret[r] === ret[n] ) {
49 not: function( selector ) {
50 return this.pushStack( winnow(this, selector, false), "not", selector);
53 filter: function( selector ) {
54 return this.pushStack( winnow(this, selector, true), "filter", selector );
57 closest: function( selector, context ) {
58 var pos = jQuery.expr.match.POS.test( selector ) ?
59 jQuery( selector, context || this.context ) : null;
61 return this.map(function(){
62 var cur = this, closer = 0;
63 while ( cur && cur.ownerDocument && cur !== context ) {
64 if ( pos ? pos.index(cur) > -1 : jQuery(cur).is(selector) ) {
65 jQuery.lastCloser = closer;
71 jQuery.lastCloser = -1;
76 add: function( selector, context ) {
77 var set = typeof selector === "string" ?
78 jQuery( selector, context || this.context ) :
79 jQuery.makeArray( selector ),
80 all = jQuery.merge( this.get(), set );
82 return this.pushStack( set[0] && (set[0].setInterval || set[0].nodeType === 9 || (set[0].parentNode && set[0].parentNode.nodeType !== 11)) ?
83 jQuery.unique( all ) :
90 this.slice( i, +i + 1 );
102 return this.pushStack( Array.prototype.slice.apply( this, arguments ),
103 "slice", Array.prototype.slice.call(arguments).join(",") );
106 map: function( callback ) {
107 return this.pushStack( jQuery.map(this, function(elem, i){
108 return callback.call( elem, i, elem );
112 andSelf: function() {
113 return this.add( this.prevObject );
117 return this.prevObject || jQuery(null);
122 parent: function(elem){return elem.parentNode;},
123 parents: function(elem){return jQuery.dir(elem,"parentNode");},
124 next: function(elem){return jQuery.nth(elem,2,"nextSibling");},
125 prev: function(elem){return jQuery.nth(elem,2,"previousSibling");},
126 nextAll: function(elem){return jQuery.dir(elem,"nextSibling");},
127 prevAll: function(elem){return jQuery.dir(elem,"previousSibling");},
128 siblings: function(elem){return jQuery.sibling(elem.parentNode.firstChild,elem);},
129 children: function(elem){return jQuery.sibling(elem.firstChild);},
130 contents: function(elem){return jQuery.nodeName(elem,"iframe")?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes);}
131 }, function(name, fn){
132 jQuery.fn[ name ] = function( selector ) {
133 var ret = jQuery.map( this, fn );
135 if ( selector && typeof selector === "string" ) {
136 ret = jQuery.filter( selector, ret );
139 ret = this.length > 1 ? jQuery.unique( ret ) : ret;
141 if ( name === "parents" && this.length > 1 ) {
145 return this.pushStack( ret, name, selector );
150 filter: function( expr, elems, not ) {
152 expr = ":not(" + expr + ")";
155 return jQuery.find.matches(expr, elems);
158 dir: function( elem, dir ) {
159 var matched = [], cur = elem[dir];
160 while ( cur && cur.nodeType !== 9 ) {
161 if ( cur.nodeType === 1 ) {
169 nth: function( cur, result, dir, elem ) {
170 result = result || 1;
173 for ( ; cur; cur = cur[dir] ) {
174 if ( cur.nodeType === 1 && ++num === result ) {
182 sibling: function( n, elem ) {
185 for ( ; n; n = n.nextSibling ) {
186 if ( n.nodeType === 1 && n !== elem ) {