145 lines
3.3 KiB
JavaScript
145 lines
3.3 KiB
JavaScript
var expando = "jQuery" + now(), uuid = 0, windowData = {};
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jQuery.extend({
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cache: {},
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data: function( elem, name, data ) {
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elem = elem == window ?
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windowData :
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elem;
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var id = elem[ expando ];
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// Compute a unique ID for the element
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if ( !id )
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id = elem[ expando ] = ++uuid;
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// Only generate the data cache if we're
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// trying to access or manipulate it
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if ( name && !jQuery.cache[ id ] )
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jQuery.cache[ id ] = {};
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// Prevent overriding the named cache with undefined values
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if ( data !== undefined )
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jQuery.cache[ id ][ name ] = data;
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// Return the named cache data, or the ID for the element
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return name ?
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jQuery.cache[ id ][ name ] :
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id;
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},
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removeData: function( elem, name ) {
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elem = elem == window ?
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windowData :
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elem;
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var id = elem[ expando ];
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// If we want to remove a specific section of the element's data
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if ( name ) {
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if ( jQuery.cache[ id ] ) {
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// Remove the section of cache data
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delete jQuery.cache[ id ][ name ];
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// If we've removed all the data, remove the element's cache
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name = "";
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for ( name in jQuery.cache[ id ] )
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break;
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if ( !name )
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jQuery.removeData( elem );
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}
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// Otherwise, we want to remove all of the element's data
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} else {
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// Clean up the element expando
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try {
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delete elem[ expando ];
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} catch(e){
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// IE has trouble directly removing the expando
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// but it's ok with using removeAttribute
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if ( elem.removeAttribute )
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elem.removeAttribute( expando );
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}
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// Completely remove the data cache
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delete jQuery.cache[ id ];
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}
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},
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queue: function( elem, type, data ) {
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if ( elem ){
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type = (type || "fx") + "queue";
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var q = jQuery.data( elem, type );
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if ( !q || jQuery.isArray(data) )
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q = jQuery.data( elem, type, jQuery.makeArray(data) );
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else if( data )
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q.push( data );
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}
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return q;
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},
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dequeue: function( elem, type ){
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var queue = jQuery.queue( elem, type ),
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fn = queue.shift();
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if( !type || type === "fx" )
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fn = queue[0];
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if( fn !== undefined )
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fn.call(elem);
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}
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});
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jQuery.fn.extend({
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data: function( key, value ){
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var parts = key.split(".");
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parts[1] = parts[1] ? "." + parts[1] : "";
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if ( value === undefined ) {
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var data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]);
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if ( data === undefined && this.length )
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data = jQuery.data( this[0], key );
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return data === undefined && parts[1] ?
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this.data( parts[0] ) :
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data;
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} else
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return this.trigger("setData" + parts[1] + "!", [parts[0], value]).each(function(){
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jQuery.data( this, key, value );
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});
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},
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removeData: function( key ){
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return this.each(function(){
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jQuery.removeData( this, key );
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});
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},
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queue: function(type, data){
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if ( typeof type !== "string" ) {
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data = type;
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type = "fx";
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}
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if ( data === undefined )
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return jQuery.queue( this[0], type );
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return this.each(function(){
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var queue = jQuery.queue( this, type, data );
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if( type == "fx" && queue.length == 1 )
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queue[0].call(this);
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});
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},
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dequeue: function(type){
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return this.each(function(){
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jQuery.dequeue( this, type );
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});
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}
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}); |