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1
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define([
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2
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"../core",
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3
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"../var/indexOf",
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4
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"./var/rneedsContext",
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5
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"../selector"
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6
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], function( jQuery, indexOf, rneedsContext ) {
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7
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8
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var risSimple = /^.[^:#\[\.,]*$/;
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9
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10
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11
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function winnow( elements, qualifier, not ) {
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12
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if ( jQuery.isFunction( qualifier ) ) {
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return jQuery.grep( elements, function( elem, i ) {
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14
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return !!qualifier.call( elem, i, elem ) !== not;
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16
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});
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17
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}
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19
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if ( qualifier.nodeType ) {
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21
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return jQuery.grep( elements, function( elem ) {
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return ( elem === qualifier ) !== not;
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23
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});
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24
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25
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}
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26
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if ( typeof qualifier === "string" ) {
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28
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if ( risSimple.test( qualifier ) ) {
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29
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return jQuery.filter( qualifier, elements, not );
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30
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}
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31
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qualifier = jQuery.filter( qualifier, elements );
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33
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}
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34
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return jQuery.grep( elements, function( elem ) {
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36
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return ( jQuery.inArray( elem, qualifier ) >= 0 ) !== not;
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37
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});
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38
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}
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39
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40
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jQuery.filter = function( expr, elems, not ) {
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var elem = elems[ 0 ];
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42
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if ( not ) {
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44
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expr = ":not(" + expr + ")";
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45
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}
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46
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return elems.length === 1 && elem.nodeType === 1 ?
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48
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jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
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49
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jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
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50
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return elem.nodeType === 1;
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51
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}));
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52
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};
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53
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54
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jQuery.fn.extend({
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55
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find: function( selector ) {
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56
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var i,
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57
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ret = [],
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58
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self = this,
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59
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len = self.length;
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60
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61
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if ( typeof selector !== "string" ) {
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62
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return this.pushStack( jQuery( selector ).filter(function() {
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63
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for ( i = 0; i < len; i++ ) {
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64
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if ( jQuery.contains( self[ i ], this ) ) {
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65
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return true;
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66
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}
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67
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}
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68
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}) );
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69
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}
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70
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71
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for ( i = 0; i < len; i++ ) {
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72
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jQuery.find( selector, self[ i ], ret );
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73
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}
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74
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75
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76
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ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
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77
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ret.selector = this.selector ? this.selector + " " + selector : selector;
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78
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return ret;
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79
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},
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80
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filter: function( selector ) {
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81
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return this.pushStack( winnow(this, selector || [], false) );
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82
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},
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83
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not: function( selector ) {
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84
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return this.pushStack( winnow(this, selector || [], true) );
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85
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},
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86
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is: function( selector ) {
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87
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return !!winnow(
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88
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this,
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89
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90
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91
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92
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typeof selector === "string" && rneedsContext.test( selector ) ?
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93
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jQuery( selector ) :
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94
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selector || [],
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95
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false
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96
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).length;
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97
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}
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98
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});
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99
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100
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});
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