source: Dev/trunk/src/client/dojox/collections/Queue.js

define(["dojo/_base/kernel", "dojo/_base/array", "./_base"], function(dojo, darray, dxc){

        dxc.Queue=function(/*array?*/ arr){
                // summary:
                //              return an object of type dojox.collections.Queue
                var q=[];
                if (arr){
                        q=q.concat(arr);
                }
                this.count=q.length;
                this.clear=function(){
                        // summary:
                        //              clears the internal collection
                        q=[];
                        this.count=q.length;
                };
                this.clone=function(){
                        // summary:
                        //              creates a new Queue based on this one
                        return new dxc.Queue(q);        //      dojox.collections.Queue
                };
                this.contains=function(/*object*/ o){
                        // summary:
                        //              Check to see if the passed object is an element in this queue
                        for(var i=0; i<q.length; i++){
                                if (q[i]==o){
                                        return true;    //      bool
                                }
                        }
                        return false;   //      bool
                };
                this.copyTo=function(/*array*/ arr, /*int*/ i){
                        // summary:
                        //              Copy the contents of this queue into the passed array at index i.
                        arr.splice(i,0,q);
                };
                this.dequeue=function(){
                        // summary:
                        //              shift the first element off the queue and return it
                        var r=q.shift();
                        this.count=q.length;
                        return r;       //      object
                };
                this.enqueue=function(/*object*/ o){
                        // summary:
                        //              put the passed object at the end of the queue
                        this.count=q.push(o);
                };
                this.forEach=function(/*function*/ fn, /*object?*/ scope){
                        // summary:
                        //              functional iterator, following the mozilla spec.
                        dojo.forEach(q, fn, scope);
                };
                this.getIterator=function(){
                        // summary:
                        //              get an Iterator based on this queue.
                        return new dxc.Iterator(q);     //      dojox.collections.Iterator
                };
                this.peek=function(){
                        // summary:
                        //              get the next element in the queue without altering the queue.
                        return q[0];
                };
                this.toArray=function(){
                        // summary:
                        //              return an array based on the internal array of the queue.
                        return [].concat(q);
                };
        };
        return dxc.Queue;
});