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3.27 kBJavaScriptView Raw
1define( [
2 "../core",
3 "../core/access",
4 "../core/nodeName",
5 "./support",
6 "../var/rnothtmlwhite",
7 "../selector"
8], function( jQuery, access, nodeName, support, rnothtmlwhite ) {
9
10"use strict";
11
12var boolHook,
13 attrHandle = jQuery.expr.attrHandle;
14
15jQuery.fn.extend( {
16 attr: function( name, value ) {
17 return access( this, jQuery.attr, name, value, arguments.length > 1 );
18 },
19
20 removeAttr: function( name ) {
21 return this.each( function() {
22 jQuery.removeAttr( this, name );
23 } );
24 }
25} );
26
27jQuery.extend( {
28 attr: function( elem, name, value ) {
29 var ret, hooks,
30 nType = elem.nodeType;
31
32 // Don't get/set attributes on text, comment and attribute nodes
33 if ( nType === 3 || nType === 8 || nType === 2 ) {
34 return;
35 }
36
37 // Fallback to prop when attributes are not supported
38 if ( typeof elem.getAttribute === "undefined" ) {
39 return jQuery.prop( elem, name, value );
40 }
41
42 // Attribute hooks are determined by the lowercase version
43 // Grab necessary hook if one is defined
44 if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
45 hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
46 ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
47 }
48
49 if ( value !== undefined ) {
50 if ( value === null ) {
51 jQuery.removeAttr( elem, name );
52 return;
53 }
54
55 if ( hooks && "set" in hooks &&
56 ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
57 return ret;
58 }
59
60 elem.setAttribute( name, value + "" );
61 return value;
62 }
63
64 if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
65 return ret;
66 }
67
68 ret = jQuery.find.attr( elem, name );
69
70 // Non-existent attributes return null, we normalize to undefined
71 return ret == null ? undefined : ret;
72 },
73
74 attrHooks: {
75 type: {
76 set: function( elem, value ) {
77 if ( !support.radioValue && value === "radio" &&
78 nodeName( elem, "input" ) ) {
79 var val = elem.value;
80 elem.setAttribute( "type", value );
81 if ( val ) {
82 elem.value = val;
83 }
84 return value;
85 }
86 }
87 }
88 },
89
90 removeAttr: function( elem, value ) {
91 var name,
92 i = 0,
93
94 // Attribute names can contain non-HTML whitespace characters
95 // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
96 attrNames = value && value.match( rnothtmlwhite );
97
98 if ( attrNames && elem.nodeType === 1 ) {
99 while ( ( name = attrNames[ i++ ] ) ) {
100 elem.removeAttribute( name );
101 }
102 }
103 }
104} );
105
106// Hooks for boolean attributes
107boolHook = {
108 set: function( elem, value, name ) {
109 if ( value === false ) {
110
111 // Remove boolean attributes when set to false
112 jQuery.removeAttr( elem, name );
113 } else {
114 elem.setAttribute( name, name );
115 }
116 return name;
117 }
118};
119
120jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( _i, name ) {
121 var getter = attrHandle[ name ] || jQuery.find.attr;
122
123 attrHandle[ name ] = function( elem, name, isXML ) {
124 var ret, handle,
125 lowercaseName = name.toLowerCase();
126
127 if ( !isXML ) {
128
129 // Avoid an infinite loop by temporarily removing this function from the getter
130 handle = attrHandle[ lowercaseName ];
131 attrHandle[ lowercaseName ] = ret;
132 ret = getter( elem, name, isXML ) != null ?
133 lowercaseName :
134 null;
135 attrHandle[ lowercaseName ] = handle;
136 }
137 return ret;
138 };
139} );
140
141} );