/flowplayer/branches/3_0_3_dev/src/actionscript/org/flowplayer/view/Launcher.as

/*    

 *    Copyright (c) 2008, 2009 Flowplayer Oy

 *

 *    This file is part of Flowplayer.

 *

 *    Flowplayer is free software: you can redistribute it and/or modify

 *    it under the terms of the GNU General Public License as published by

 *    the Free Software Foundation, either version 3 of the License, or

 *    (at your option) any later version.

 *

 *    Flowplayer is distributed in the hope that it will be useful,

 *    but WITHOUT ANY WARRANTY; without even the implied warranty of

 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *    GNU General Public License for more details.

 *

 *    You should have received a copy of the GNU General Public License

 *    along with Flowplayer.  If not, see <http://www.gnu.org/licenses/>.

 */

package org.flowplayer.view {

    import org.flowplayer.model.Canvas;

import org.flowplayer.model.Loadable;

	import org.flowplayer.model.ProviderModel;	

	import org.flowplayer.config.Config;

	import org.flowplayer.config.ConfigLoader;

	import org.flowplayer.config.ExternalInterfaceHelper;

	import org.flowplayer.config.VersionInfo;

	import org.flowplayer.controller.NetStreamControllingStreamProvider;

	import org.flowplayer.controller.PlayListController;

	import org.flowplayer.controller.ResourceLoader;

	import org.flowplayer.controller.ResourceLoaderImpl;

	import org.flowplayer.flow_internal;

	import org.flowplayer.model.Callable;

	import org.flowplayer.model.Clip;

	import org.flowplayer.model.ClipEvent;

	import org.flowplayer.model.DisplayPluginModel;

	import org.flowplayer.model.DisplayProperties;

	import org.flowplayer.model.DisplayPropertiesImpl;

	import org.flowplayer.model.EventDispatcher;

	import org.flowplayer.model.Logo;

	import org.flowplayer.model.PlayButtonOverlay;

	import org.flowplayer.model.PlayerError;

	import org.flowplayer.model.PlayerEvent;

	import org.flowplayer.model.Playlist;

	import org.flowplayer.model.Plugin;

	import org.flowplayer.model.PluginError;

	import org.flowplayer.model.PluginEvent;

	import org.flowplayer.model.PluginModel;

	import org.flowplayer.model.State;

	import org.flowplayer.util.Arrange;

	import org.flowplayer.util.Log;

	import org.flowplayer.util.TextUtil;

	import org.flowplayer.util.URLUtil;

	import org.flowplayer.view.Panel;

	import org.flowplayer.view.Screen;

	import org.osflash.thunderbolt.Logger;

	

	import flash.display.DisplayObject;

	import flash.display.DisplayObjectContainer;

	import flash.display.Sprite;

	import flash.events.Event;

	import flash.events.KeyboardEvent;

	import flash.events.MouseEvent;

	import flash.events.TimerEvent;

	import flash.net.URLRequest;

	import flash.net.navigateToURL;

	import flash.system.Capabilities;

	import flash.system.Security;

	import flash.text.TextField;

	import flash.text.TextFieldAutoSize;

	import flash.ui.Keyboard;

	import flash.utils.Dictionary;

	import flash.utils.Timer;	

	

	use namespace flow_internal;



	public class Launcher extends StyleableSprite implements ErrorHandler {



		private var _panel:Panel;

		private var _screen:Screen;

		private var _config:Config;

		private var _flowplayer:Flowplayer;

		private var _pluginRegistry:PluginRegistry;

		private var _animationEngine:AnimationEngine;

		private var _playButtonOverlay:PlayButtonOverlay;

		private var _controlsModel:DisplayPluginModel;

		private var _providers:Dictionary = new Dictionary();

		private var _fullscreenManager:FullscreenManager;

		private var _canvasLogo:Sprite;

		private var _pluginLoader:PluginLoader;

		private var _error:TextField;

		private var _pluginsInitialized:Number = 0;

		private var _numLoadablePlugins:int = -1;

		private var _enteringFullscreen:Boolean;

		private var _copyrightNotice:TextField;



		[Frame(factoryClass="org.flowplayer.view.Preloader")]

		public function Launcher() {

			super("#canvas", this);

			addEventListener(Event.ADDED_TO_STAGE, initPhase1);

		}



		private function initPhase1(event:Event):void {

			createFlashVarsConfig();

			Log.configure(_config.getLogConfiguration());



			if (_config.playerId) {

				Security.allowDomain(URLUtil.pageUrl);

			}

			

			_config.getPlaylist().onBeforeBegin(function(event:ClipEvent):void { hideErrorMessage(); });



			loader = createNewLoader(); 



			rootStyle = _config.canvas.style;

			stage.addEventListener(Event.RESIZE, onStageResize);

			setSize(stage.stageWidth, stage.stageHeight);



			if (! VersionInfo.commercial) {

				log.debug("Adding logo to canvas");

				createLogoForCanvas();

			}



			log = new Log(this);

			EventDispatcher.playerId = _config.playerId;

			

			log.debug("security sandbox type: " + Security.sandboxType);

			

			log.info(VersionInfo.versionInfo());

			log.debug("creating Panel");



			createPanel();

			_pluginRegistry = new PluginRegistry(_panel);

			

			log.debug("Creating animation engine");

			createAnimationEngine(_pluginRegistry);

			

			log.debug("creating play button overlay");

			createPlayButtonOverlay();

			

			log.debug("creating screen");

			createScreen();

			

			loadPluginsIfConfigured();

		}



		private function initPhase2(pluginsLoadedEvent:Event = null):void {

            log.info("initPhase2, all plugins loaded");

			_pluginLoader.removeEventListener(Event.COMPLETE, this.initPhase2);

			

			log.debug("creating PlayListController");

			_providers = _pluginLoader.providers;

			var playListController:PlayListController = createPlayListController();

			

			addPlayListListeners();

			createFullscreenManager(playListController.playlist);

			

			log.debug("creating Flowplayer API");

			createFlowplayer(playListController);



			addScreenToPanel();



			if (!validateLicenseKey()) {

				createLogoForCanvas();

				resizeCanvasLogo();

			}

			

			log.debug("creating logo");

			createLogo();

			

			contextMenu = new ContextMenuBuilder(_config.playerId, _config.contextMenu).build();

			

			log.debug("initializing ExternalInterface");

			if (useExternalInterfade()) {

				_flowplayer.initExternalInterface();

			}



			log.debug("calling onLoad to plugins");

			_pluginRegistry.onLoad(_flowplayer);

		}



		private function initPhase3(event:Event = null):void {

            log.info("initPhase3, all plugins initialized");



			log.debug("Adding visible plugins to panel");

			addPluginsToPanel(_pluginRegistry);

			

			log.debug("arranging screen");

			arrangeScreen();

			

			log.debug("dispatching onLoad");

			if (useExternalInterfade()) {

				_flowplayer.dispatchEvent(PlayerEvent.load("player"));

			} 



			log.debug("starting configured streams");

			startStreams();



			stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);

			addListeners();

		}



		private function resizeCanvasLogo():void {

			_canvasLogo.alpha = 1;

			_canvasLogo.width = 150;

			_canvasLogo.scaleY = _canvasLogo.scaleX;

			arrangeCanvasLogo();

		}



		private function useExternalInterfade():Boolean {

			log.debug("useExternalInteface: " + (_config.playerId != null));

			return _config.playerId != null;

		}



		private function onStageResize(event:Event = null):void {

			setSize(stage.stageWidth, stage.stageHeight);

			arrangeCanvasLogo();

		}



		private function arrangeCanvasLogo():void {

			if (!_canvasLogo) return;

			_canvasLogo.x = 15;

			_canvasLogo.y = stage.stageHeight - (_controlsModel ? _controlsModel.dimensions.height.toPx(stage.stageHeight) + 10 : 10) - _canvasLogo.height - _copyrightNotice.height;

			_copyrightNotice.x = 12;

			_copyrightNotice.y  = _canvasLogo.y + _canvasLogo.height;

		}



		private function loadPluginsIfConfigured():void {

			var plugins:Array = _config.getLoadables();

			log.info("will load following plugins: ");

			for (var i:Number = 0; i < plugins.length; i++) {

				log.info("" + plugins[i]);

			}

			_pluginLoader = new PluginLoader(URLUtil.playerBaseUrl(loaderInfo), _pluginRegistry, this, useExternalInterfade(), onPluginLoad, onPluginLoadError);

			_pluginLoader.addEventListener(Event.COMPLETE, initPhase2);

			if (plugins.length == 0) {

				log.debug("configuration has no plugins");

				initPhase2();

			} else {

				log.debug("loading plugins and providers");

				_pluginLoader.load(plugins);

			}

		}

		

		private function onPluginLoad(event:PluginEvent):void {

			var plugin:PluginModel = event.target as PluginModel;

			log.info("plugin " + plugin + " initialized");

			checkPluginsInitialized();

		}



		private function onPluginLoadError(event:PluginEvent):void {

			if (! event.hasError(PluginError.INIT_FAILED)) return;

			

			var plugin:PluginModel = event.target as PluginModel;

			log.warn("load/init error on " + plugin);

			_pluginRegistry.removePlugin(plugin);

			checkPluginsInitialized();

		}

		

		private function checkPluginsInitialized():void {

			var numPlugins:int = getLoadablePluginCount();

			

			if (++_pluginsInitialized == numPlugins) {

				log.info("all plugins initialized");

				initPhase3();

			}

			log.info(_pluginsInitialized + " out of " + numPlugins + " plugins initialized (or have failed to load completely)");

		}

		

		private function getLoadablePluginCount():int {

            return countLoadablePlugins();

//			if (_numLoadablePlugins == -1) {

//				_numLoadablePlugins = countLoadablePlugins();

//			}

//			return _numLoadablePlugins;

		}

		

		private function countLoadablePlugins():int {

			var count:Number = 0;

			var loadables:Array = _config.getLoadables();

			for (var i:Number = 0; i < loadables.length; i++) {



				var plugin:PluginModel = Loadable(loadables[i]).plugin;

				var isNonAdHocPlugin:Boolean = (plugin is DisplayPluginModel && DisplayPluginModel(plugin).getDisplayObject() is Plugin) ||

					plugin is ProviderModel && ProviderModel(plugin).getProviderObject() is Plugin;



                if (Loadable(loadables[i]).loadFailed) {

                    log.debug("load failed for " + loadables[i]);

                    count++;

                } else if (! plugin) {

                    log.debug("this plugin is not loaded yet");

                    count++;

                } else if (isNonAdHocPlugin) {

					log.debug("will wait for onLoad from plugin " + plugin);

					count++;

				} else {

					log.debug("will NOT wait for onLoad from plugin " + Loadable(loadables[i]).plugin);

				}

			}

			// +1 comes from the playbuttonoverlay

			return count + (_playButtonOverlay ? 1 : 0);

		}

		

		private function playerSwfName():String {

			var url:String = loaderInfo.url;

			var lastSlash:Number = url.lastIndexOf("/");

			return url.substring(lastSlash + 1, url.indexOf(".swf") + 4); 

		}



		private function validateLicenseKey():Boolean {

			try {

				return LicenseKey.validate(root.loaderInfo.url, _flowplayer.version, _config.licenseKey, useExternalInterfade());

			} catch (e:Error) {

				log.warn("License key not accepted, will show flowplayer logo");

			}

			return false;

		}



		private function createFullscreenManager(playlist:Playlist):void {

			_fullscreenManager = new FullscreenManager(stage, playlist, _panel, _pluginRegistry, _animationEngine);

		}



		public function showError(message:String):void {

			if (! _panel) return;

			if (! _config.showErrors) return;

			if (_error && _error.parent == this) {

				removeChild(_error);

			}

			

			_error = TextUtil.createTextField(false);

			_error.background = true;

			_error.backgroundColor = 0;

			_error.textColor = 0xffffff;

			_error.autoSize = TextFieldAutoSize.CENTER;

			_error.multiline = true;

			_error.wordWrap = true;

			_error.text = message;

			_error.selectable = true;

			_error.width = stage.stageWidth - 40;

			Arrange.center(_error, stage.stageWidth, stage.stageHeight);

			addChild(_error);

			

			createErrorMessageHideTimer();

		}

		

		private function createErrorMessageHideTimer():void {

			var errorHideTimer:Timer = new Timer(4000, 1);

			errorHideTimer.addEventListener(TimerEvent.TIMER_COMPLETE, hideErrorMessage);

			errorHideTimer.start();

		}



		private function hideErrorMessage(event:TimerEvent = null):void {

			if (_error && _error.parent == this) {

				if (_animationEngine) {

					_animationEngine.fadeOut(_error, 1000, function():void { removeChild(_error); });

				} else {

					removeChild(_error);

				}

			}

		}



		public function handleError(error:PlayerError, info:Object = null, throwError:Boolean = true):void {

			if (_flowplayer) {

				_flowplayer.dispatchError(error, info);

			} else {

				// initialization is not complete, create a dispatches just to dispatch this error

				new PlayerEventDispatcher().dispatchError(error, info);

			}

			doHandleError(error.code + ": " + error.message + ( info ? ": " + info : ""), throwError);

		}



		private function doHandleError(message:String, throwError:Boolean = true):void {

			if (_config && _config.playerId) {

				Logger.error(message);

			}

			showError(message);

			if (throwError && Capabilities.isDebugger) {

				throw new Error(message);

			}

		}



		private function createAnimationEngine(pluginRegistry:PluginRegistry):void {

			_animationEngine = new AnimationEngine(_panel, pluginRegistry);

		}



		private function addPluginsToPanel(_pluginRegistry:PluginRegistry):void {

			for each (var pluginObj:Object in _pluginRegistry.plugins) {

				if (pluginObj is DisplayPluginModel) {

					var model:DisplayPluginModel = pluginObj as DisplayPluginModel;

					log.debug("adding plugin '"+ model.name +"' to panel: " + model.visible + ", plugin object is " + model.getDisplayObject());

					if (model.visible) {

						if (model.zIndex == -1) {

							model.zIndex = 100;

						}

						_panel.addView(model.getDisplayObject(), undefined, model);

					}

					if (model.name == "controls") {

						_controlsModel = model;

					}

				}

			}

			if (_controlsModel) {

				arrangeCanvasLogo();

			}

		}

		

		private function addScreenToPanel():void {

			// if controls visible and screen was not explicitly configured --> place screen on top of controls

			var screen:DisplayProperties = _pluginRegistry.getPlugin("screen") as DisplayProperties;

			screen.display = "none";

			screen.getDisplayObject().visible = false;

			_panel.addView(screen.getDisplayObject(), null, screen);

		}

		

		private function arrangeScreen():void {

			var screen:DisplayProperties = _pluginRegistry.getPlugin("screen") as DisplayProperties;

			 

			if (_controlsModel && _controlsModel.visible) {

				

				if (isControlsAlwaysAutoHide() || (_controlsModel.position.bottom.px > 0)) {

					log.debug("controls is autoHide or it's in a non-default vertical position, configuring screen to take all available space");

					setScreenBottomAndHeight(screen, 100, 0);

				} else {

					var controlsHeight:Number = _controlsModel.getDisplayObject().height;

					var occupiedHeight:Number = screenTopOrBottomConfigured() ? getScreenTopOrBottomPx(screen) : controlsHeight;

					log.debug("occupied by controls or screen's configured bottom/top is " + occupiedHeight);



					var heightPct:Number = 0;

					if (screenTopOrBottomConfigured() && (screen.position.top.pct >= 0 || screen.position.bottom.pct >= 0)) {

						heightPct = 100 - Math.abs(50 - (screen.position.top.pct >= 0 ? screen.position.top.pct : screen.position.bottom.pct))*2; 

						setScreenBottomAndHeight(screen, heightPct, controlsHeight);

					} else {

						heightPct = ((stage.stageHeight - occupiedHeight) / stage.stageHeight) * 100;

						setScreenBottomAndHeight(screen, heightPct, controlsHeight);

					}

				}

			}

			log.debug("arranging screen to pos " + screen.position);

			screen.display = "block";

			screen.getDisplayObject().visible = true;

			_pluginRegistry.updateDisplayProperties(screen);

			_panel.update(screen.getDisplayObject(), screen);

			_panel.draw(screen.getDisplayObject());

		}

		

		private function getScreenTopOrBottomPx(screen:DisplayProperties):Number {

			var screenConf:Object = _config.getObject("screen");

			if (screenConf.hasOwnProperty("top")) return screen.position.top.toPx(stage.stageHeight);

			if (screenConf.hasOwnProperty("bottom")) return screen.position.bottom.toPx(stage.stageHeight);

			return 0;

		}



		private function setScreenBottomAndHeight(screen:DisplayProperties, heightPct:Number, bottom:Number = 0):void {

			if (! screenTopOrBottomConfigured()) {

				log.debug("screen vertical pos not configured, setting bottom to value " + bottom);

				screen.bottom = bottom;

			} else {

				log.debug("using configured top/bottom for screen");

			}

			

			var heightConfigured:Boolean = _config.getObject("screen") && _config.getObject("screen").hasOwnProperty("height");

			if (! heightConfigured) {

				log.debug("screen height not configured, setting it to value " + heightPct + "%");

				screen.height =  heightPct + "%";

			} else {

				log.debug("using configured height for screen");

			}

		}



		private function screenTopOrBottomConfigured():Boolean {

			var screen:Object = _config.getObject("screen");

			if (! screen) return false;

			if (screen.hasOwnProperty("top")) return true;

			if (screen.hasOwnProperty("bottom")) return true;

			return false;

		}



		private function isControlsAlwaysAutoHide():Boolean {

			if (!_controlsModel) return false;

			if (!_controlsModel.config) return false;

			log.debug("controlsModel.config.auotoHide == always", (_controlsModel.config.autoHide == 'always'));

			return  _controlsModel.config.autoHide == 'always';

		}



		private function createFlowplayer(playListController:PlayListController):void {

			_flowplayer = new Flowplayer(stage, playListController, _pluginRegistry, _panel, 

				_animationEngine, this, this, _config, _fullscreenManager, _pluginLoader, URLUtil.playerBaseUrl(loaderInfo));

			playListController.playerEventDispatcher = _flowplayer;

			

			_flowplayer.onBeforeFullscreen(onFullscreen);

//			_flowplayer.onFullscreenExit(onFullscreen);

		}

		

		private function onFullscreen(event:PlayerEvent):void {

				log.debug("entering fullscreen, disabling display clicks");

				_enteringFullscreen = true;

				var delay:Timer = new Timer(1000, 1);

				delay.addEventListener(TimerEvent.TIMER_COMPLETE, onTimerComplete);

				delay.start();

		}

		

		private function onTimerComplete(event:TimerEvent):void {

			log.debug("fullscreen wait delay complete, display clicks are enabled again");

			_enteringFullscreen = false;

		}



		private function createFlashVarsConfig():void {

			for (var prop:String in stage.loaderInfo.parameters) {

				log.debug(prop + ": " + (stage.loaderInfo.parameters[prop]));

			}

			if (! stage.loaderInfo.parameters) {

				return;

			}

			

			_config = ConfigLoader.flow_internal::parseConfig(stage.loaderInfo.parameters["config"], playerSwfName(), VersionInfo.controlsVersion, VersionInfo.audioVersion); 

		}



		private function createPlayListController():PlayListController {

			if (! _providers) {

				_providers = new Dictionary();

			}

			var httpProvider:NetStreamControllingStreamProvider = new NetStreamControllingStreamProvider();

			httpProvider.playerConfig = _config;

			_providers["http"] = httpProvider;

			return new PlayListController(_config.getPlaylist(), _providers, _config, createNewLoader());

		}

		

		private function createScreen():void {

			_screen = new Screen(_config.getPlaylist(), _animationEngine, _playButtonOverlay, _pluginRegistry);

			var screenModel:DisplayProperties = _config.getScreenProperties();

			initView(_screen, screenModel, null, false);

			if (_playButtonOverlay) {

				PlayButtonOverlayView(_playButtonOverlay.getDisplayObject()).setScreen(_screen, hasClip);

			}

//			addViewLiteners(_screen);

		}



		private function createPlayButtonOverlay():void {

			_playButtonOverlay = _config.getPlayButtonOverlay();

			if (! _playButtonOverlay) return;

			

			_playButtonOverlay.onLoad(onPluginLoad);

			_playButtonOverlay.onError(onPluginLoadError);



			log.debug("playlist has clips? " + hasClip);

			var overlay:PlayButtonOverlayView = new PlayButtonOverlayView(! playButtonOverlayWidthDefined(), _playButtonOverlay, _pluginRegistry, _config.getPlaylist());

			initView(overlay, _playButtonOverlay, null, false);

		}

		

		private function playButtonOverlayWidthDefined():Boolean {

			if (! _config.getObject("play")) return false;

			return _config.getObject("play").hasOwnProperty("width");

		}

		

		private function get hasClip():Boolean {

			var firstClip:Clip = _config.getPlaylist().current;

			var hasClip:Boolean = ! firstClip.isNullClip && (firstClip.url || firstClip.provider != 'http');

			return hasClip; 

		}

		

		private function createLogo():void {

			var logo:Logo = _config.getLogo() || new Logo();

			var logoView:LogoView = new LogoView(_panel, logo, _flowplayer);

			initView(logoView, logo, logoView.draw, false);

		}



		private function initView(view:DisplayObject, props:DisplayProperties, resizeListener:Function = null, addToPanel:Boolean = true):void {

			if (props.name != "logo" || VersionInfo.commercial) {

				_pluginRegistry.registerDisplayPlugin(props, view);

			}

			if (addToPanel) {

				_panel.addView(view, resizeListener, props);

			}

			if (props is Callable) {

				ExternalInterfaceHelper.initializeInterface(props as Callable, view);

			}

		}

		

		private function addListeners():void {

			_screen.addEventListener(MouseEvent.CLICK, onViewClicked);

			addEventListener(MouseEvent.ROLL_OVER, onMouseOver);

			addEventListener(MouseEvent.ROLL_OUT, onMouseOut);

			

			// add some color so that the ROLL_OVER/ROLL_OUT events are always triggered

			graphics.beginFill(0, 0);

			graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);

			graphics.endFill();

		}

		

		private function onMouseOut(event:MouseEvent):void {

			_flowplayer.dispatchEvent(PlayerEvent.mouseOut());

		}



		private function onMouseOver(event:MouseEvent):void {

			_flowplayer.dispatchEvent(PlayerEvent.mouseOver());

		}



		private function createPanel():void {

			_panel = new Panel();

			addChild(_panel);

		}

		

		private function startStreams():void {

			var canStart:Boolean = true;

			if (_flowplayer.state != State.WAITING) {

				log.debug("streams have been started in player.onLoad(), will not start streams here.");

				canStart = false;

			}

			if (! hasClip) {

				log.info("Configuration has no clips to play.");

				canStart = false;

			}



			var playButton:PlayButtonOverlayView = _playButtonOverlay ? PlayButtonOverlayView(_playButtonOverlay.getDisplayObject()) : null;

			

			if (canStart) {

				if (_flowplayer.currentClip.autoPlay) {

					log.debug("clip is autoPlay");

					_flowplayer.play();

				} else if (_flowplayer.currentClip.autoBuffering) {

					log.debug("clip is autoBuffering");

					_flowplayer.startBuffering();

				} else {

					if (playButton) {

						playButton.stopBuffering();

						playButton.showButton();

					}

				}

			} else {

				// cannot start playing here, stop buffering indicator, don't show the button

				if (playButton) {

					playButton.stopBuffering();

				}

			}

		}

		

		private function addPlayListListeners():void {

			var playlist:Playlist = _config.getPlaylist();

			playlist.onError(onClipError);

		}

		

		private function onClipError(event:ClipEvent):void {

			doHandleError(event.info + ", " + event.info2 + ", " + event.info3 + ", clip: '" + Clip(event.target) + "'");

		}



		private function onViewClicked(event:MouseEvent):void {

			if (_enteringFullscreen) return;

			log.debug("onViewClicked, target " + event.target + ", current target " + event.currentTarget);



            if (_playButtonOverlay && isParent(DisplayObject(event.target), _playButtonOverlay.getDisplayObject())) {

				_flowplayer.toggle();



			} else if (isParent(DisplayObject(event.target), _screen)) {

                log.debug("screen clicked");

                var clip:Clip = _flowplayer.playlist.current; 

                if (clip.linkUrl) {

                    log.debug("opening linked page");

                    _flowplayer.pause();

                    navigateToURL(new URLRequest(clip.linkUrl), clip.linkWindow);

                    return;

                }

				_flowplayer.toggle();



			}



            event.stopPropagation();

		}

		

		private function isParent(child:DisplayObject, parent:DisplayObject):Boolean {

			if (DisplayObject(child).parent == parent) return true;

			if (! (parent is DisplayObjectContainer)) return false;

			for (var i:Number = 0;i < DisplayObjectContainer(parent).numChildren; i++) {

				var curChild:DisplayObject = DisplayObjectContainer(parent).getChildAt(i);

				if (isParent(child, curChild)) { 

					return true;

				}

			}

			return false;

		}



		private function onKeyDown(event:KeyboardEvent):void {

			log.debug("keydown");

			if (_enteringFullscreen) return;

			if (_flowplayer.dispatchBeforeEvent(PlayerEvent.keyPress(event.keyCode))) {

				_flowplayer.dispatchEvent(PlayerEvent.keyPress(event.keyCode));

				if (event.keyCode == Keyboard.SPACE) {

					_flowplayer.toggle();

				}

			}

		}

		

		override protected function onRedraw():void {

			if (bgImageHolder && getChildIndex(bgImageHolder) > getChildIndex(_panel)) {

				swapChildren(bgImageHolder, _panel);

			}

		}

		

		private function createLogoForCanvas():void {

			if (_canvasLogo) return;

			_copyrightNotice = LogoUtil.createCopyrightNotice(8);

			addChild(_copyrightNotice);

			

			_canvasLogo = new CanvasLogo();

			_canvasLogo.width = 85;

			_canvasLogo.scaleY = _canvasLogo.scaleX;

			_canvasLogo.alpha = .4;

			_canvasLogo.addEventListener(MouseEvent.CLICK, 

				function(event:MouseEvent):void { navigateToURL(new URLRequest("http://flowplayer.org"), "_self"); });

			_canvasLogo.buttonMode = true;

			log.debug("adding logo to display list");

			addChild(_canvasLogo);

			onStageResize();

		}

		

		private function createNewLoader():ResourceLoader {

			return new ResourceLoaderImpl(_config.playerId ? null : URLUtil.playerBaseUrl(loaderInfo), this);

		}

	}

}