As3 identifies double-click events

// Double-click the event to trigger the click event.

package {import com.greensock.TweenLite;import flash.display.DisplayObjectContainer;import flash.display.Sprite;import flash.events.MouseEvent;import flash.utils.getTimer;public class Test1 extends Sprite {private var _rect:Sprite;public function Test1() {trace("hello world");//            this.stage.addEventListener(MouseEvent.CLICK, __onTraceClick);drawRect();_rect.addEventListener(MouseEvent.ROLL_OVER, __onOver);_rect.addEventListener(MouseEvent.ROLL_OUT, __onOut);_rect.addEventListener(MouseEvent.MOUSE_DOWN, __onDown);}private function __onOver(evt:MouseEvent):void {//trace("over");}private function __onOut(evt:MouseEvent):void {//trace("out");}private var _preDownTime:int = 0;private function __onDown(evt:MouseEvent):void {trace("down");TweenLite.killDelayedCallsTo(doClick);_rect.addEventListener(MouseEvent.MOUSE_UP, __onUp);_rect.startDrag();_preDownTime = getTimer();}private const UP_INTER:int = 300;private var _preUpTime:int = 0;private function __onUp(evt:MouseEvent):void {trace("up");_rect.removeEventListener(MouseEvent.MOUSE_UP, __onUp);_rect.stopDrag();var now:int = getTimer();if((now - _preUpTime) < UP_INTER) {trace("----double click");} else if((now - _preDownTime) < UP_INTER) {TweenLite.delayedCall(0.2, doClick);} else {trace("drag");}_preUpTime = now;}private function doClick():void {trace("----click");}private function __onTraceClick(evt:MouseEvent):void {var str:String = "";trace(printTrace(evt.target as DisplayObjectContainer));}private function printTrace(sp:DisplayObjectContainer):String {if(null == sp) {return "";} else {return sp.toString() + "/" + printTrace(sp.parent);}}private function drawRect():void {var rect:Sprite = new Sprite();// red rect, starting at point 50, 50rect.graphics.beginFill(0xFF0000);rect.graphics.moveTo(50, 50);rect.graphics.lineTo(150,50);rect.graphics.lineTo(150,150);rect.graphics.lineTo(50,150);rect.graphics.endFill();_rect = rect;this.addChild(_rect);}}}

　　

As3 identifies double-click events