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 )) return jQuery.multiFilter(qualifier, filtered, !keep);
14 else qualifier = jQuery.multiFilter( qualifier, elements );
17 return jQuery.grep(elements, function(elem, i) {
18 return (jQuery.inArray( elem, qualifier ) >= 0) === keep;
23 find: function( selector ) {
24 var ret = this.pushStack( "", "find", selector ), length = 0;
26 for ( var i = 0, l = this.length; i < l; i++ ) {
28 jQuery.find( selector, this[i], ret );
31 // Make sure that the results are unique
32 for ( var n = length; n < ret.length; n++ ) {
33 for ( var r = 0; r < length; r++ ) {
34 if ( ret[r] === ret[n] ) {
46 not: function( selector ) {
47 return this.pushStack( winnow(this, selector, false), "not", selector);
50 filter: function( selector ) {
51 return this.pushStack( winnow(this, selector, true), "filter", selector );
54 closest: function( selector, context ) {
55 var pos = jQuery.expr.match.POS.test( selector ) ? jQuery(selector) : null,
58 return this.map(function(){
60 while ( cur && cur.ownerDocument && cur !== context ) {
61 if ( pos ? pos.index(cur) > -1 : jQuery(cur).is(selector) ) {
62 jQuery.data(cur, "closest", closer);
71 add: function( selector ) {
72 var set = typeof selector === "string" ?
74 jQuery.makeArray( selector ),
75 all = jQuery.merge( this.get(), set );
77 return this.pushStack( set[0] && (set[0].setInterval || set[0].nodeType === 9 || (set[0].parentNode && set[0].parentNode.nodeType !== 11)) ?
78 jQuery.unique( all ) :
85 this.slice( i, +i + 1 );
97 return this.pushStack( Array.prototype.slice.apply( this, arguments ),
98 "slice", Array.prototype.slice.call(arguments).join(",") );
101 map: function( callback ) {
102 return this.pushStack( jQuery.map(this, function(elem, i){
103 return callback.call( elem, i, elem );
107 andSelf: function() {
108 return this.add( this.prevObject );
112 return this.prevObject || jQuery(null);
117 parent: function(elem){return elem.parentNode;},
118 parents: function(elem){return jQuery.dir(elem,"parentNode");},
119 next: function(elem){return jQuery.nth(elem,2,"nextSibling");},
120 prev: function(elem){return jQuery.nth(elem,2,"previousSibling");},
121 nextAll: function(elem){return jQuery.dir(elem,"nextSibling");},
122 prevAll: function(elem){return jQuery.dir(elem,"previousSibling");},
123 siblings: function(elem){return jQuery.sibling(elem.parentNode.firstChild,elem);},
124 children: function(elem){return jQuery.sibling(elem.firstChild);},
125 contents: function(elem){return jQuery.nodeName(elem,"iframe")?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes);}
126 }, function(name, fn){
127 jQuery.fn[ name ] = function( selector ) {
128 var ret = jQuery.map( this, fn );
130 if ( selector && typeof selector === "string" ) {
131 ret = jQuery.multiFilter( selector, ret );
134 ret = this.length > 1 ? jQuery.unique( ret ) : ret;
136 if ( name === "parents" && this.length > 1 ) {
140 return this.pushStack( ret, name, selector );