package
{
    import flash.display.NativeWindowSystemChrome;
    import flash.display.NativeWindowType;
    import flash.events.*;
    import flash.utils.Timer;

    import mx.containers.Canvas;
    import mx.controls.Button;
    import mx.controls.TextArea;
    import mx.core.Window;
    import mx.events.FlexEvent;

    public class AlertWin extends Window
    {
        private var _showTimer:Timer;
        private var _delayTimer:Timer;
        private var _hideTimer:Timer;

        private var _delayTime:int;
        private var _message:String;
        private var _width:int;
        private var _height:int;

        private var _systemChrome:NativeWindowSystemChrome;
        private var _windowType:NativeWindowType

        public function AlertWin() {
            this.maximizable = false;
            this.resizable = false;
            this.minimizable = false;

            // alternate, none, standard, utility
            this.systemChrome = "none";

            // lightweight, normal, utility
            this.type = "lightweight"

            this.addEventListener(FlexEvent.CREATION_COMPLETE, completeHandler);
        }

        public function completeHandler(event:FlexEvent):void {
            this.nativeWindow.x = flash.display.Screen.mainScreen.bounds.width - (this.width + 20);
            this.nativeWindow.y = flash.display.Screen.mainScreen.bounds.height - 20;

            this.horizontalScrollPolicy = "off";
            this.verticalScrollPolicy = "off";

            _showTimer = new Timer(10,0);
            _showTimer.addEventListener("timer", showTimerHandler);
            _showTimer.start();
        }

        public function show(message:String, title:String = "", delayTime:int=2, width:int=200, height:int=150): void {
            _delayTime = delayTime;

            this.width = width;
            this.height = height;

            var cnv:Canvas = new Canvas();
            cnv.width = width;
            cnv.height = height;
            cnv.horizontalScrollPolicy = "off";
            cnv.verticalScrollPolicy = "off";

            var ta:TextArea = new TextArea();
            ta.text = message;
            ta.width = width;
            ta.height = height;

            var btn:Button = new Button();
            btn.label = "My Message";
            btn.setStyle("right", "5");
            btn.setStyle("bottom", "45");

            cnv.addChild(ta);
            cnv.addChild(btn);

            this.addChild(cnv);

            this.open();
        }

        private function showTimerHandler(event:TimerEvent):void {
            this.nativeWindow.y -= 10;

            if(this.nativeWindow.y = (flash.display.Screen.mainScreen.bounds.height-20)){
                    this.close();
                    _hideTimer.stop();
                }
            } else {
                _hideTimer.stop();
            }
        }
    }
}