jwopitz

package com.jwopitz.controls {
	//
	import flash.events.Event;
	//
	import mx.events.FlexEvent;
	import mx.controls.ComboBox;
	//
	import com.jwopitz.utils.ArrayCollectionUtil;
	//
	[Event (name="selectedDataChanged")]
	public class ComboBox extends mx.controls.ComboBox {
			//
			//properties
			//-----------------------------------------------------------//
			public var propertyToSearchBy:String = "label";
			//this acts as an MXML proxy for binding of the selectedItem.
			private var _selectedData:Object;
			private var _tempTextInputString:String = "";
			//is true, autoPrompt will select the prompt as the current index if the proposed selectedData was not found in the dataprovider.
			private var _autoPrompt:Boolean = false;
			private var _autoFind:Boolean = true;
			// 
			//constructor
			//-----------------------------------------------------------//
			public function ComboBox (){
				//add listeners for uic init events
				this.addEventListener (FlexEvent.INITIALIZE, onInitialize);
				this.addEventListener (FlexEvent.CREATION_COMPLETE, onCreationComplete);
				this.addEventListener (Event.CHANGE, onChange);
				super ();
			}
			// 
			//methods
			//-----------------------------------------------------------//
			protected function onInitialize (evt:Object = null):void {
				//trace ('onInitialize event: ' + this.name);
			}
			//
			protected function onCreationComplete (evt:Object = null):void {
				//trace ('onCreationComplete event: ' + this.name);
			}
			//
			protected function onChange (evt:Object = null):void {
				//trace ('onChange event: ' + this.name);
				if (this.editable == true)
					if (this._autoFind == true)
						findMatchByText ();
			}
			//
			protected function findMatchByText ():void {
				/*_tempTextInputString = this.text;
				if (typeof dataProvider.getItemAt(0) == 'object'){
					this.selectedData = ArrayCollectionUtil.findItem (dataProvider, this.text, this.labelField);
				} else {
					this.selectedData = ArrayCollectionUtil.findItem (dataProvider, this.text);
				}*/
			}
			//
			protected function findMatch ():void {
				/*if (typeof dataProvider.getItemAt(0) == 'object'){
					this.selectedData = ArrayCollectionUtil.findItem (dataProvider, this.text, this.propertyToSearchBy);
				} else {
					this.selectedData = ArrayCollectionUtil.findItem (dataProvider, this.text);
				}*/
			}
			// 
			//getters & setters
			//-----------------------------------------------------------//
			//write-only
			public function set selectedData (value:Object):void {
				_selectedData = value;
				var i:uint = 0;
				var l:uint = this.dataProvider.length
				for (i; i < l; i++) {
					if (this._selectedData == this.dataProvider[i]){
						this.selectedIndex = i;
						break;
					} else {
						if (_autoPrompt)
							this.selectedIndex = -1;
					}
				}
				dispatchEvent (new Event ("selectedDataChanged"));
			}
			//
			public function set autoPrompt (value:Boolean):void {
				this._autoPrompt = value;
				this._autoFind = !value;
			}
			//
			public function set autoFind (value:Boolean):void {
				this._autoFind = value;
				this._autoPrompt = !value;
			}
	}
}