Split the queue code out from data.js into a dedicated queue.js file (also split...

[jquery.git] / src / queue.js

diff --git a/src/queue.js b/src/queue.js
new file mode 100644 (file)
index 0000000..e636ffb
--- /dev/null
+++ b/src/queue.js
@@ -0,0 +1,78 @@
+jQuery.extend({
+       queue: function( elem, type, data ) {
+               if ( !elem ) { return; }
+
+               type = (type || "fx") + "queue";
+               var q = jQuery.data( elem, type );
+
+               // Speed up dequeue by getting out quickly if this is just a lookup
+               if ( !data ) { return q || []; }
+
+               if ( !q || jQuery.isArray(data) ) {
+                       q = jQuery.data( elem, type, jQuery.makeArray(data) );
+               } else {
+                       q.push( data );
+               }
+               return q;
+       },
+
+       dequeue: function( elem, type ){
+               type = type || "fx";
+
+               var queue = jQuery.queue( elem, type ), fn = queue.shift();
+
+               // If the fx queue is dequeued, always remove the progress sentinel
+               if ( fn === "inprogress" ) { fn = queue.shift(); }
+
+               if ( fn ) {
+                       // Add a progress sentinel to prevent the fx queue from being
+                       // automatically dequeued
+                       if ( type == "fx" ) { queue.unshift("inprogress"); }
+
+                       fn.call(elem, function() { jQuery.dequeue(elem, type); });
+               }
+       }
+});
+
+jQuery.fn.extend({
+       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(i, elem){
+                       var queue = jQuery.queue( this, type, data );
+
+                       if ( type == "fx" && queue[0] !== "inprogress" ) {
+                               jQuery.dequeue( this, type );
+                       }
+               });
+       },
+       dequeue: function(type){
+               return this.each(function(){
+                       jQuery.dequeue( this, type );
+               });
+       },
+
+       // Based off of the plugin by Clint Helfers, with permission.
+       // http://blindsignals.com/index.php/2009/07/jquery-delay/
+       delay: function( time, type ) {
+               time = jQuery.fx ? jQuery.fx.speeds[time] || time : time;
+               type = type || "fx";
+
+               return this.queue( type, function() {
+                       var elem = this;
+                       setTimeout(function() {
+                               jQuery.dequeue( elem, type );
+                       }, time );
+               });
+       },
+
+       clearQueue: function(type){
+               return this.queue( type || "fx", [] );
+       }
+});