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