aboutsummaryrefslogtreecommitdiffstats
path: root/src/selector-native.js
blob: cec99cef245929ab2127847971833cdb5acef577 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
define([
	"./core"
], function( jQuery ) {

/*
 * Optional (non-Sizzle) selector module for custom builds.
 *
 * Note that this DOES NOT SUPPORT many documented jQuery
 * features in exchange for its smaller size:
 *
 * Attribute not equal selector
 * Positional selectors (:first; :eq(n); :odd; etc.)
 * Type selectors (:input; :checkbox; :button; etc.)
 * State-based selectors (:animated; :visible; :hidden; etc.)
 * :has(selector)
 * :not(complex selector)
 * custom selectors via Sizzle extensions
 * Leading combinators (e.g., $collection.find("> *"))
 * Reliable functionality on XML fragments
 * Requiring all parts of a selector to match elements under context
 *   (e.g., $div.find("div > *") now matches children of $div)
 * Matching against non-elements
 * Reliable sorting of disconnected nodes
 * querySelectorAll bug fixes (e.g., unreliable :focus on WebKit)
 *
 * If any of these are unacceptable tradeoffs, either use Sizzle or
 * customize this stub for the project's specific needs.
 */

var docElem = window.document.documentElement,
	selector_hasDuplicate,
	matches = docElem.webkitMatchesSelector ||
		docElem.mozMatchesSelector ||
		docElem.oMatchesSelector ||
		docElem.msMatchesSelector,
	selector_sortOrder = function( a, b ) {
		// Flag for duplicate removal
		if ( a === b ) {
			selector_hasDuplicate = true;
			return 0;
		}

		var compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );

		if ( compare ) {
			// Disconnected nodes
			if ( compare & 1 ) {

				// Choose the first element that is related to our document
				if ( a === document || jQuery.contains(document, a) ) {
					return -1;
				}
				if ( b === document || jQuery.contains(document, b) ) {
					return 1;
				}

				// Maintain original order
				return 0;
			}

			return compare & 4 ? -1 : 1;
		}

		// Not directly comparable, sort on existence of method
		return a.compareDocumentPosition ? -1 : 1;
	};

jQuery.extend({
	find: function( selector, context, results, seed ) {
		var elem, nodeType,
			i = 0;

		results = results || [];
		context = context || document;

		// Same basic safeguard as Sizzle
		if ( !selector || typeof selector !== "string" ) {
			return results;
		}

		// Early return if context is not an element or document
		if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
			return [];
		}

		if ( seed ) {
			while ( (elem = seed[i++]) ) {
				if ( jQuery.find.matchesSelector(elem, selector) ) {
					results.push( elem );
				}
			}
		} else {
			jQuery.merge( results, context.querySelectorAll(selector) );
		}

		return results;
	},
	unique: function( results ) {
		var elem,
			duplicates = [],
			i = 0,
			j = 0;

		selector_hasDuplicate = false;
		results.sort( selector_sortOrder );

		if ( selector_hasDuplicate ) {
			while ( (elem = results[i++]) ) {
				if ( elem === results[ i ] ) {
					j = duplicates.push( i );
				}
			}
			while ( j-- ) {
				results.splice( duplicates[ j ], 1 );
			}
		}

		return results;
	},
	text: function( elem ) {
		var node,
			ret = "",
			i = 0,
			nodeType = elem.nodeType;

		if ( !nodeType ) {
			// If no nodeType, this is expected to be an array
			while ( (node = elem[i++]) ) {
				// Do not traverse comment nodes
				ret += jQuery.text( node );
			}
		} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
			// Use textContent for elements
			return elem.textContent;
		} else if ( nodeType === 3 || nodeType === 4 ) {
			return elem.nodeValue;
		}
		// Do not include comment or processing instruction nodes

		return ret;
	},
	contains: function( a, b ) {
		var adown = a.nodeType === 9 ? a.documentElement : a,
			bup = b && b.parentNode;
		return a === bup || !!( bup && bup.nodeType === 1 && adown.contains(bup) );
	},
	isXMLDoc: function( elem ) {
		return (elem.ownerDocument || elem).documentElement.nodeName !== "HTML";
	},
	expr: {
		attrHandle: {},
		match: {
			bool: /^(?:checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped)$/i,
			needsContext: /^[\x20\t\r\n\f]*[>+~]/
		}
	}
});

jQuery.extend( jQuery.find, {
	matches: function( expr, elements ) {
		return jQuery.find( expr, null, null, elements );
	},
	matchesSelector: function( elem, expr ) {
		return matches.call( elem, expr );
	},
	attr: function( elem, name ) {
		return elem.getAttribute( name );
	}
});

});