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