/*
	Copyright (c) 2004-2005, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.collections.Queue");
dojo.require("dojo.collections.Collections");

dojo.collections.Queue = function(arr){
	var q = [];
	if (arr) q = q.concat(arr);
	this.count = q.length;
	this.clear = function(){
		q = [];
		this.count = q.length;
	};
	this.clone = function(){
		return new dojo.collections.Queue(q);
	};
	this.contains = function(o){
		for (var i = 0; i < q.length; i++){
			if (q[i] == o) return true;
		}
		return false;
	};
	this.copyTo = function(arr, i){
		arr.splice(i,0,q);
	};
	this.dequeue = function(){
		var r = q.shift();
		this.count = q.length;
		return r;
	};
	this.enqueue = function(o){
		this.count = q.push(o);
	};
	this.getIterator = function(){
		return new dojo.collections.Iterator(q);
	};
	this.peek = function(){
		return q[0];
	};
	this.toArray = function(){
		return [].concat(q);
	};
};