source: [view]
dojo.provide("dojox.collections.SortedList");
dojo.require("dojox.collections._base");
dojox.collections.SortedList=function(/* object? */ dictionary){
// summary
// creates a collection that acts like a dictionary but is also internally sorted.
// Note that the act of adding any elements forces an internal resort, making this object potentially slow.
var _this=this;
var items={};
var q=[];
var sorter=function(a,b){
if (a.key > b.key) return 1;
if (a.key < b.key) return -1;
return 0;
};
var build=function(){
q=[];
var e=_this.getIterator();
while (!e.atEnd()){
q.push(e.get());
}
q.sort(sorter);
};
var testObject={};
this.count=q.length;
this.add=function(/* string */ k,/* object */v){
// summary
// add the passed value to the dictionary at location k
if (!items[k]) {
items[k]=new dojox.collections.DictionaryEntry(k,v);
this.count=q.push(items[k]);
q.sort(sorter);
}
};
this.clear=function(){
// summary
// clear the internal collections
items={};
q=[];
this.count=q.length;
};
this.clone=function(){
// summary
// create a clone of this sorted list
return new dojox.collections.SortedList(this); // dojox.collections.SortedList
};
this.contains=this.containsKey=function(/* string */ k){
// summary
// Check to see if the list has a location k
if(testObject[k]){
return false; // bool
}
return (items[k]!=null); // bool
};
this.containsValue=function(/* object */ o){
// summary
// Check to see if this list contains the passed object
var e=this.getIterator();
while (!e.atEnd()){
var item=e.get();
if(item.value==o){
return true; // bool
}
}
return false; // bool
};
this.copyTo=function(/* array */ arr, /* int */ i){
// summary
// copy the contents of the list into array arr at index i
var e=this.getIterator();
var idx=i;
while(!e.atEnd()){
arr.splice(idx,0,e.get());
idx++;
}
};
this.entry=function(/* string */ k){
// summary
// return the object at location k
return items[k]; // dojox.collections.DictionaryEntry
};
this.forEach=function(/* function */ fn, /* object? */ scope){
// summary
// functional iterator, following the mozilla spec.
dojo.forEach(q, fn, scope);
};
this.getByIndex=function(/* int */ i){
// summary
// return the item at index i
return q[i].valueOf(); // object
};
this.getIterator=function(){
// summary
// get an iterator for this object
return new dojox.collections.DictionaryIterator(items); // dojox.collections.DictionaryIterator
};
this.getKey=function(/* int */ i){
// summary
// return the key of the item at index i
return q[i].key;
};
this.getKeyList=function(){
// summary
// return an array of the keys set in this list
var arr=[];
var e=this.getIterator();
while (!e.atEnd()){
arr.push(e.get().key);
}
return arr; // array
};
this.getValueList=function(){
// summary
// return an array of values in this list
var arr=[];
var e=this.getIterator();
while (!e.atEnd()){
arr.push(e.get().value);
}
return arr; // array
};
this.indexOfKey=function(/* string */ k){
// summary
// return the index of the passed key.
for (var i=0; i if (q[i].key==k){
return i; // int
}
}
return -1; // int
};
this.indexOfValue=function(/* object */ o){
// summary
// return the first index of object o
for (var i=0; i if (q[i].value==o){
return i; // int
}
}
return -1; // int
};
this.item=function(/* string */ k){
// summary
// return the value of the object at location k.
if(k in items && !testObject[k]){
return items[k].valueOf(); // object
}
return undefined; // object
};
this.remove=function(/* string */k){
// summary
// remove the item at location k and rebuild the internal collections.
delete items[k];
build();
this.count=q.length;
};
this.removeAt=function(/* int */ i){
// summary
// remove the item at index i, and rebuild the internal collections.
delete items[q[i].key];
build();
this.count=q.length;
};
this.replace=function(/* string */ k, /* object */ v){
// summary
// Replace an existing item if it's there, and add a new one if not.
if (!items[k]){
// we're adding a new object, return false
this.add(k,v);
return false; // bool
}else{
// we're replacing an object, return true
items[k]=new dojox.collections.DictionaryEntry(k,v);
build();
return true; // bool
}
};
this.setByIndex=function(/* int */ i, /* object */ o){
// summary
// set an item by index
items[q[i].key].value=o;
build();
this.count=q.length;
};
if (dictionary){
var e=dictionary.getIterator();
while (!e.atEnd()){
var item=e.get();
q[q.length]=items[item.key]=new dojox.collections.DictionaryEntry(item.key,item.value);
}
q.sort(sorter);
}