scratch – Blame information for rev 125

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Rev Author Line No. Line
125 office 1 define([
58 office 2 "./core",
125 office 3 "./var/rnotwhite",
58 office 4 "./core/access",
125 office 5 "./data/var/data_priv",
6 "./data/var/data_user"
7 ], function( jQuery, rnotwhite, access, data_priv, data_user ) {
58 office 8  
9 // Implementation Summary
10 //
11 // 1. Enforce API surface and semantic compatibility with 1.9.x branch
12 // 2. Improve the module's maintainability by reducing the storage
13 // paths to a single mechanism.
14 // 3. Use the same single mechanism to support "private" and "user" data.
15 // 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
16 // 5. Avoid exposing implementation details on user objects (eg. expando properties)
17 // 6. Provide a clear path for implementation upgrade to WeakMap in 2014
18  
19 var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
125 office 20 rmultiDash = /([A-Z])/g;
58 office 21  
22 function dataAttr( elem, key, data ) {
23 var name;
24  
25 // If nothing was found internally, try to fetch any
26 // data from the HTML5 data-* attribute
27 if ( data === undefined && elem.nodeType === 1 ) {
125 office 28 name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
58 office 29 data = elem.getAttribute( name );
30  
31 if ( typeof data === "string" ) {
32 try {
125 office 33 data = data === "true" ? true :
34 data === "false" ? false :
35 data === "null" ? null :
36 // Only convert to a number if it doesn't change the string
37 +data + "" === data ? +data :
38 rbrace.test( data ) ? jQuery.parseJSON( data ) :
39 data;
40 } catch( e ) {}
58 office 41  
42 // Make sure we set the data so it isn't changed later
125 office 43 data_user.set( elem, key, data );
58 office 44 } else {
45 data = undefined;
46 }
47 }
48 return data;
49 }
50  
125 office 51 jQuery.extend({
58 office 52 hasData: function( elem ) {
125 office 53 return data_user.hasData( elem ) || data_priv.hasData( elem );
58 office 54 },
55  
56 data: function( elem, name, data ) {
125 office 57 return data_user.access( elem, name, data );
58 office 58 },
59  
60 removeData: function( elem, name ) {
125 office 61 data_user.remove( elem, name );
58 office 62 },
63  
64 // TODO: Now that all calls to _data and _removeData have been replaced
125 office 65 // with direct calls to data_priv methods, these can be deprecated.
58 office 66 _data: function( elem, name, data ) {
125 office 67 return data_priv.access( elem, name, data );
58 office 68 },
69  
70 _removeData: function( elem, name ) {
125 office 71 data_priv.remove( elem, name );
58 office 72 }
125 office 73 });
58 office 74  
125 office 75 jQuery.fn.extend({
58 office 76 data: function( key, value ) {
77 var i, name, data,
78 elem = this[ 0 ],
79 attrs = elem && elem.attributes;
80  
81 // Gets all values
82 if ( key === undefined ) {
83 if ( this.length ) {
125 office 84 data = data_user.get( elem );
58 office 85  
125 office 86 if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) {
58 office 87 i = attrs.length;
88 while ( i-- ) {
89  
125 office 90 // Support: IE11+
58 office 91 // The attrs elements can be null (#14894)
92 if ( attrs[ i ] ) {
93 name = attrs[ i ].name;
94 if ( name.indexOf( "data-" ) === 0 ) {
125 office 95 name = jQuery.camelCase( name.slice(5) );
58 office 96 dataAttr( elem, name, data[ name ] );
97 }
98 }
99 }
125 office 100 data_priv.set( elem, "hasDataAttrs", true );
58 office 101 }
102 }
103  
104 return data;
105 }
106  
107 // Sets multiple values
108 if ( typeof key === "object" ) {
125 office 109 return this.each(function() {
110 data_user.set( this, key );
111 });
58 office 112 }
113  
114 return access( this, function( value ) {
125 office 115 var data,
116 camelKey = jQuery.camelCase( key );
58 office 117  
118 // The calling jQuery object (element matches) is not empty
119 // (and therefore has an element appears at this[ 0 ]) and the
120 // `value` parameter was not undefined. An empty jQuery object
121 // will result in `undefined` for elem = this[ 0 ] which will
122 // throw an exception if an attempt to read a data cache is made.
123 if ( elem && value === undefined ) {
125 office 124 // Attempt to get data from the cache
125 // with the key as-is
126 data = data_user.get( elem, key );
127 if ( data !== undefined ) {
128 return data;
129 }
58 office 130  
131 // Attempt to get data from the cache
125 office 132 // with the key camelized
133 data = data_user.get( elem, camelKey );
58 office 134 if ( data !== undefined ) {
135 return data;
136 }
137  
138 // Attempt to "discover" the data in
139 // HTML5 custom data-* attrs
125 office 140 data = dataAttr( elem, camelKey, undefined );
58 office 141 if ( data !== undefined ) {
142 return data;
143 }
144  
145 // We tried really hard, but the data doesn't exist.
146 return;
147 }
148  
149 // Set the data...
125 office 150 this.each(function() {
151 // First, attempt to store a copy or reference of any
152 // data that might've been store with a camelCased key.
153 var data = data_user.get( this, camelKey );
58 office 154  
125 office 155 // For HTML5 data-* attribute interop, we have to
156 // store property names with dashes in a camelCase form.
157 // This might not apply to all properties...*
158 data_user.set( this, camelKey, value );
159  
160 // *... In the case of properties that might _actually_
161 // have dashes, we need to also store a copy of that
162 // unchanged property.
163 if ( key.indexOf("-") !== -1 && data !== undefined ) {
164 data_user.set( this, key, value );
165 }
166 });
58 office 167 }, null, value, arguments.length > 1, null, true );
168 },
169  
170 removeData: function( key ) {
125 office 171 return this.each(function() {
172 data_user.remove( this, key );
173 });
58 office 174 }
125 office 175 });
58 office 176  
177 return jQuery;
125 office 178 });