dojo.provide("dojo.collections.Queue");
dojo.require("dojo.collections.Collections");
dojo.collections.Queue=function(/* array? */arr){
// summary
// return an object of type dojo.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 dojo.collections.Queue(q); // dojo.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.
var s=scope||dj_global;
if(Array.forEach){
Array.forEach(q, fn, s);
}else{
for(var i=0; i<q.length; i++){
fn.call(s, q[i], i, q);
}
}
};
this.getIterator=function(){
// summary
// get an Iterator based on this queue.
return new dojo.collections.Iterator(q); // dojo.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);
};
};