113 lines
3 KiB
JavaScript
113 lines
3 KiB
JavaScript
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dojo.provide("dojox.collections.Dictionary");
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dojo.require("dojox.collections._base");
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dojox.collections.Dictionary=function(/* dojox.collections.Dictionary? */dictionary){
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// summary
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// Returns an object of type dojox.collections.Dictionary
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var items={};
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this.count=0;
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// comparator for property addition and access.
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var testObject={};
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this.add=function(/* string */k, /* object */v){
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// summary
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// Add a new item to the Dictionary.
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var b=(k in items);
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items[k]=new dojox.collections.DictionaryEntry(k,v);
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if(!b){
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this.count++;
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}
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};
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this.clear=function(){
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// summary
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// Clears the internal dictionary.
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items={};
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this.count=0;
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};
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this.clone=function(){
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// summary
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// Returns a new instance of dojox.collections.Dictionary; note the the dictionary is a clone but items might not be.
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return new dojox.collections.Dictionary(this); // dojox.collections.Dictionary
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};
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this.contains=this.containsKey=function(/* string */k){
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// summary
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// Check to see if the dictionary has an entry at key "k".
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if(testObject[k]){
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return false; // bool
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}
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return (items[k]!=null); // bool
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};
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this.containsValue=function(/* object */v){
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// summary
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// Check to see if the dictionary has an entry with value "v".
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var e=this.getIterator();
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while(e.get()){
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if(e.element.value==v){
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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.entry=function(/* string */k){
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// summary
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// Accessor method; similar to dojox.collections.Dictionary.item but returns the actual Entry object.
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return items[k]; // dojox.collections.DictionaryEntry
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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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var a=[]; // Create an indexing array
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for(var p in items) {
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if(!testObject[p]){
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a.push(items[p]); // fill it up
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}
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}
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dojo.forEach(a, fn, scope);
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};
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this.getKeyList=function(){
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// summary
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// Returns an array of the keys in the dictionary.
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return (this.getIterator()).map(function(entry){
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return entry.key;
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}); // array
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};
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this.getValueList=function(){
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// summary
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// Returns an array of the values in the dictionary.
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return (this.getIterator()).map(function(entry){
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return entry.value;
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}); // array
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};
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this.item=function(/* string */k){
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// summary
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// Accessor method.
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if(k in items){
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return items[k].valueOf(); // object
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}
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return undefined; // object
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};
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this.getIterator=function(){
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// summary
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// Gets a dojox.collections.DictionaryIterator for iteration purposes.
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return new dojox.collections.DictionaryIterator(items); // dojox.collections.DictionaryIterator
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};
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this.remove=function(/* string */k){
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// summary
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// Removes the item at k from the internal collection.
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if(k in items && !testObject[k]){
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delete items[k];
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this.count--;
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return true; // bool
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}
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return false; // bool
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};
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if (dictionary){
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var e=dictionary.getIterator();
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while(e.get()) {
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this.add(e.element.key, e.element.value);
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}
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}
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};
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