scratch – Blame information for rev 58
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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 58 | office | 1 | define( [ |
| 2 | "../core", |
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| 3 | "../var/indexOf", |
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| 4 | "./var/rneedsContext", |
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| 5 | "../selector" |
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| 6 | ], function( jQuery, indexOf, rneedsContext ) { |
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| 7 | |||
| 8 | "use strict"; |
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| 9 | |||
| 10 | var risSimple = /^.[^:#\[\.,]*$/; |
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| 11 | |||
| 12 | // Implement the identical functionality for filter and not |
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| 13 | function winnow( elements, qualifier, not ) { |
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| 14 | if ( jQuery.isFunction( qualifier ) ) { |
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| 15 | return jQuery.grep( elements, function( elem, i ) { |
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| 16 | return !!qualifier.call( elem, i, elem ) !== not; |
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| 17 | } ); |
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| 18 | } |
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| 19 | |||
| 20 | // Single element |
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| 21 | if ( qualifier.nodeType ) { |
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| 22 | return jQuery.grep( elements, function( elem ) { |
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| 23 | return ( elem === qualifier ) !== not; |
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| 24 | } ); |
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| 25 | } |
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| 26 | |||
| 27 | // Arraylike of elements (jQuery, arguments, Array) |
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| 28 | if ( typeof qualifier !== "string" ) { |
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| 29 | return jQuery.grep( elements, function( elem ) { |
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| 30 | return ( indexOf.call( qualifier, elem ) > -1 ) !== not; |
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| 31 | } ); |
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| 32 | } |
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| 33 | |||
| 34 | // Simple selector that can be filtered directly, removing non-Elements |
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| 35 | if ( risSimple.test( qualifier ) ) { |
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| 36 | return jQuery.filter( qualifier, elements, not ); |
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| 37 | } |
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| 38 | |||
| 39 | // Complex selector, compare the two sets, removing non-Elements |
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| 40 | qualifier = jQuery.filter( qualifier, elements ); |
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| 41 | return jQuery.grep( elements, function( elem ) { |
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| 42 | return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1; |
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| 43 | } ); |
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| 44 | } |
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| 45 | |||
| 46 | jQuery.filter = function( expr, elems, not ) { |
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| 47 | var elem = elems[ 0 ]; |
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| 48 | |||
| 49 | if ( not ) { |
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| 50 | expr = ":not(" + expr + ")"; |
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| 51 | } |
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| 52 | |||
| 53 | if ( elems.length === 1 && elem.nodeType === 1 ) { |
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| 54 | return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : []; |
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| 55 | } |
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| 56 | |||
| 57 | return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) { |
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| 58 | return elem.nodeType === 1; |
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| 59 | } ) ); |
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| 60 | }; |
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| 61 | |||
| 62 | jQuery.fn.extend( { |
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| 63 | find: function( selector ) { |
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| 64 | var i, ret, |
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| 65 | len = this.length, |
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| 66 | self = this; |
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| 67 | |||
| 68 | if ( typeof selector !== "string" ) { |
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| 69 | return this.pushStack( jQuery( selector ).filter( function() { |
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| 70 | for ( i = 0; i < len; i++ ) { |
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| 71 | if ( jQuery.contains( self[ i ], this ) ) { |
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| 72 | return true; |
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| 73 | } |
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| 74 | } |
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| 75 | } ) ); |
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| 76 | } |
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| 77 | |||
| 78 | ret = this.pushStack( [] ); |
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| 79 | |||
| 80 | for ( i = 0; i < len; i++ ) { |
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| 81 | jQuery.find( selector, self[ i ], ret ); |
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| 82 | } |
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| 83 | |||
| 84 | return len > 1 ? jQuery.uniqueSort( ret ) : ret; |
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| 85 | }, |
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| 86 | filter: function( selector ) { |
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| 87 | return this.pushStack( winnow( this, selector || [], false ) ); |
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| 88 | }, |
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| 89 | not: function( selector ) { |
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| 90 | return this.pushStack( winnow( this, selector || [], true ) ); |
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| 91 | }, |
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| 92 | is: function( selector ) { |
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| 93 | return !!winnow( |
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| 94 | this, |
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| 95 | |||
| 96 | // If this is a positional/relative selector, check membership in the returned set |
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| 97 | // so $("p:first").is("p:last") won't return true for a doc with two "p". |
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| 98 | typeof selector === "string" && rneedsContext.test( selector ) ? |
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| 99 | jQuery( selector ) : |
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| 100 | selector || [], |
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| 101 | false |
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| 102 | ).length; |
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| 103 | } |
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| 104 | } ); |
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| 105 | |||
| 106 | } ); |