Repository: flex-examples Updated Branches: refs/heads/develop c652cfba6 -> 0cd6ec753
PseudoThread utility is now truly open source Project: http://git-wip-us.apache.org/repos/asf/flex-examples/repo Commit: http://git-wip-us.apache.org/repos/asf/flex-examples/commit/0cd6ec75 Tree: http://git-wip-us.apache.org/repos/asf/flex-examples/tree/0cd6ec75 Diff: http://git-wip-us.apache.org/repos/asf/flex-examples/diff/0cd6ec75 Branch: refs/heads/develop Commit: 0cd6ec7536976dab62c73dac5bc370ef5628d1de Parents: c652cfb Author: Alex Harui <aha...@apache.org> Authored: Wed Sep 3 13:23:27 2014 -0700 Committer: Alex Harui <aha...@apache.org> Committed: Wed Sep 3 13:23:27 2014 -0700 ---------------------------------------------------------------------- PseudoThread/NOTICE | 9 ++++ PseudoThread/PseudoThread.as | 107 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 116 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/flex-examples/blob/0cd6ec75/PseudoThread/NOTICE ---------------------------------------------------------------------- diff --git a/PseudoThread/NOTICE b/PseudoThread/NOTICE new file mode 100644 index 0000000..d91483e --- /dev/null +++ b/PseudoThread/NOTICE @@ -0,0 +1,9 @@ +Apache Flex PseudoThread Utility +Copyright 2014 The Apache Software Foundation + +This product includes software developed at +The Apache Software Foundation (http://www.apache.org/). + +The Initial Developer of the Original Code +is Adobe Systems Incorporated (http://www.adobe.com/). + Copyright 2003 - 2012 Adobe Systems Incorporated. All Rights Reserved. http://git-wip-us.apache.org/repos/asf/flex-examples/blob/0cd6ec75/PseudoThread/PseudoThread.as ---------------------------------------------------------------------- diff --git a/PseudoThread/PseudoThread.as b/PseudoThread/PseudoThread.as new file mode 100644 index 0000000..f90f20b --- /dev/null +++ b/PseudoThread/PseudoThread.as @@ -0,0 +1,107 @@ +//////////////////////////////////////////////////////////////////////////////// +// +// Licensed to the Apache Software Foundation (ASF) under one or more +// contributor license agreements. See the NOTICE file distributed with +// this work for additional information regarding copyright ownership. +// The ASF licenses this file to You under the Apache License, Version 2.0 +// (the "License"); you may not use this file except in compliance with +// the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// +//////////////////////////////////////////////////////////////////////////////// +package +{ + import flash.display.DisplayObjectContainer; + import flash.events.Event; + import flash.events.EventDispatcher; + import flash.events.KeyboardEvent; + import flash.events.MouseEvent; + import flash.utils.getTimer; + import mx.core.UIComponent; + import mx.managers.ISystemManager; + + public class PseudoThread extends EventDispatcher + { + public function PseudoThread(sm:ISystemManager, threadFunction:Function, threadObject:Object) + { + fn = threadFunction; + obj = threadObject; + + // add high priority listener for ENTER_FRAME + sm.stage.addEventListener(Event.ENTER_FRAME, enterFrameHandler, false, 100); + sm.stage.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler); + sm.stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler); + + thread = new UIComponent(); + sm.addChild(thread); + thread.addEventListener(Event.RENDER, renderHandler); + } + + // number of milliseconds we think it takes to render the screen + public var RENDER_DEDUCTION:int = 10; + + private var fn:Function; + private var obj:Object; + private var thread:UIComponent; + private var start:Number; + private var due:Number; + + private var mouseEvent:Boolean; + private var keyEvent:Boolean; + + private function enterFrameHandler(event:Event):void + { + start = getTimer(); + var fr:Number = Math.floor(1000 / thread.systemManager.stage.frameRate); + due = start + fr; + + thread.systemManager.stage.invalidate(); + thread.graphics.clear(); + thread.graphics.moveTo(0, 0); + thread.graphics.lineTo(0, 0); + } + + private function renderHandler(event:Event):void + { + if (mouseEvent || keyEvent) + due -= RENDER_DEDUCTION; + + while (getTimer() < due) + { + if (!fn(obj)) + { + if (!thread.parent) + return; + + var sm:ISystemManager = thread.systemManager; + sm.stage.removeEventListener(Event.ENTER_FRAME, enterFrameHandler); + sm.stage.removeEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler); + sm.stage.removeEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler); + sm.removeChild(thread); + thread.removeEventListener(Event.RENDER, renderHandler); + dispatchEvent(new Event("threadComplete")); + } + } + + mouseEvent = false; + keyEvent = false; + } + + private function mouseMoveHandler(event:Event):void + { + mouseEvent = true; + } + + private function keyDownHandler(event:Event):void + { + keyEvent = true; + } + } +}
