You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
161 lines
4.2 KiB
161 lines
4.2 KiB
define( [
|
|
"./core",
|
|
"./core/access",
|
|
"./data/var/dataPriv",
|
|
"./data/var/dataUser"
|
|
], function( jQuery, access, dataPriv, dataUser ) {
|
|
|
|
"use strict";
|
|
|
|
// Implementation Summary
|
|
//
|
|
// 1. Enforce API surface and semantic compatibility with 1.9.x branch
|
|
// 2. Improve the module's maintainability by reducing the storage
|
|
// paths to a single mechanism.
|
|
// 3. Use the same single mechanism to support "private" and "user" data.
|
|
// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
|
|
// 5. Avoid exposing implementation details on user objects (eg. expando properties)
|
|
// 6. Provide a clear path for implementation upgrade to WeakMap in 2014
|
|
|
|
var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
|
|
rmultiDash = /[A-Z]/g;
|
|
|
|
function dataAttr( elem, key, data ) {
|
|
var name;
|
|
|
|
// If nothing was found internally, try to fetch any
|
|
// data from the HTML5 data-* attribute
|
|
if ( data === undefined && elem.nodeType === 1 ) {
|
|
name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
|
|
data = elem.getAttribute( name );
|
|
|
|
if ( typeof data === "string" ) {
|
|
try {
|
|
data = data === "true" ? true :
|
|
data === "false" ? false :
|
|
data === "null" ? null :
|
|
|
|
// Only convert to a number if it doesn't change the string
|
|
+data + "" === data ? +data :
|
|
rbrace.test( data ) ? JSON.parse( data ) :
|
|
data;
|
|
} catch ( e ) {}
|
|
|
|
// Make sure we set the data so it isn't changed later
|
|
dataUser.set( elem, key, data );
|
|
} else {
|
|
data = undefined;
|
|
}
|
|
}
|
|
return data;
|
|
}
|
|
|
|
jQuery.extend( {
|
|
hasData: function( elem ) {
|
|
return dataUser.hasData( elem ) || dataPriv.hasData( elem );
|
|
},
|
|
|
|
data: function( elem, name, data ) {
|
|
return dataUser.access( elem, name, data );
|
|
},
|
|
|
|
removeData: function( elem, name ) {
|
|
dataUser.remove( elem, name );
|
|
},
|
|
|
|
// TODO: Now that all calls to _data and _removeData have been replaced
|
|
// with direct calls to dataPriv methods, these can be deprecated.
|
|
_data: function( elem, name, data ) {
|
|
return dataPriv.access( elem, name, data );
|
|
},
|
|
|
|
_removeData: function( elem, name ) {
|
|
dataPriv.remove( elem, name );
|
|
}
|
|
} );
|
|
|
|
jQuery.fn.extend( {
|
|
data: function( key, value ) {
|
|
var i, name, data,
|
|
elem = this[ 0 ],
|
|
attrs = elem && elem.attributes;
|
|
|
|
// Gets all values
|
|
if ( key === undefined ) {
|
|
if ( this.length ) {
|
|
data = dataUser.get( elem );
|
|
|
|
if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
|
|
i = attrs.length;
|
|
while ( i-- ) {
|
|
|
|
// Support: IE 11 only
|
|
// The attrs elements can be null (#14894)
|
|
if ( attrs[ i ] ) {
|
|
name = attrs[ i ].name;
|
|
if ( name.indexOf( "data-" ) === 0 ) {
|
|
name = jQuery.camelCase( name.slice( 5 ) );
|
|
dataAttr( elem, name, data[ name ] );
|
|
}
|
|
}
|
|
}
|
|
dataPriv.set( elem, "hasDataAttrs", true );
|
|
}
|
|
}
|
|
|
|
return data;
|
|
}
|
|
|
|
// Sets multiple values
|
|
if ( typeof key === "object" ) {
|
|
return this.each( function() {
|
|
dataUser.set( this, key );
|
|
} );
|
|
}
|
|
|
|
return access( this, function( value ) {
|
|
var data;
|
|
|
|
// The calling jQuery object (element matches) is not empty
|
|
// (and therefore has an element appears at this[ 0 ]) and the
|
|
// `value` parameter was not undefined. An empty jQuery object
|
|
// will result in `undefined` for elem = this[ 0 ] which will
|
|
// throw an exception if an attempt to read a data cache is made.
|
|
if ( elem && value === undefined ) {
|
|
|
|
// Attempt to get data from the cache
|
|
// The key will always be camelCased in Data
|
|
data = dataUser.get( elem, key );
|
|
if ( data !== undefined ) {
|
|
return data;
|
|
}
|
|
|
|
// Attempt to "discover" the data in
|
|
// HTML5 custom data-* attrs
|
|
data = dataAttr( elem, key );
|
|
if ( data !== undefined ) {
|
|
return data;
|
|
}
|
|
|
|
// We tried really hard, but the data doesn't exist.
|
|
return;
|
|
}
|
|
|
|
// Set the data...
|
|
this.each( function() {
|
|
|
|
// We always store the camelCased key
|
|
dataUser.set( this, key, value );
|
|
} );
|
|
}, null, value, arguments.length > 1, null, true );
|
|
},
|
|
|
|
removeData: function( key ) {
|
|
return this.each( function() {
|
|
dataUser.remove( this, key );
|
|
} );
|
|
}
|
|
} );
|
|
|
|
return jQuery;
|
|
} );
|