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* release/0.9.8: New swc Cleanup flexLibProperties New version with Audio support Adding support for HTML5 Audio Sync the video event loop with the ENTER_FRAME Fixes unbindUnPress where for touch screens the events weren't properly removed Added fix for ie, that sometimes does not know the size of images. Now we use naturalWidth when supported (all modern browsers) and we use append/remove element for older browsers. - Added support in the Loader for the event FAR_ENOUGH, which corresponds to the moment a loaded asset is ready to use but not yet fully loaded. Fully loaded still corresponds to COMPLETE. - Fixed the duration in the animator, the duration is now independent of the actual rendered frame rate.
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * HumboldtJSLibrary | ||
| * http://humboldtjs.com/ | ||
| * | ||
| * Copyright (c) 2012 Daniël Haveman | ||
| * Licensed under the MIT license | ||
| * http://humboldtjs.com/license.html | ||
| */ | ||
| package com.humboldtjs.audio | ||
| { | ||
| import com.humboldtjs.display.DisplayObject; | ||
| import com.humboldtjs.display.ISrcDisplayObject; | ||
| import com.humboldtjs.display.Stage; | ||
| import com.humboldtjs.events.DataEvent; | ||
| import com.humboldtjs.events.HJSEvent; | ||
| import com.humboldtjs.system.Capabilities; | ||
| import com.humboldtjs.system.HtmlUtils; | ||
| import com.humboldtjs.system.OperatingSystem; | ||
|
|
||
| import dom.document; | ||
| import dom.domobjects.Event; | ||
| import dom.window; | ||
|
|
||
| /** | ||
| * A simple Audio class which deals with some of the weird issues with | ||
| * HTML5 Audio. This already supports a few different platforms and situations | ||
| * however you still have to determine whether to load an MP4 or WEBM | ||
| * using the Capabilities class first. | ||
| * | ||
| * Note there are still numerous issues with various mobile browsers which | ||
| * have varying degrees of support for HTML5. | ||
| */ | ||
| public class Audio extends DisplayObject implements ISrcDisplayObject | ||
| { | ||
| public static const AUDIO_MP3:String = "mp3"; | ||
|
|
||
| public static const EVENT_ENDED:String = "ended"; | ||
| public static const EVENT_TIME_CHANGED:String = "timechanged"; | ||
|
|
||
| protected var mHasAudio:Boolean = false; | ||
| protected var mLoopRunning:Boolean = false; | ||
| protected var mSrc:String = ""; | ||
|
|
||
| protected var mEnded:Boolean = false; | ||
| protected var mPaused:Boolean = true; | ||
| protected var mCurrentTime:Number = 0; | ||
| protected var mTimer:int = -1; | ||
| protected var mTries:int = 0; | ||
|
|
||
| /** | ||
| * The duration | ||
| */ | ||
| public function getDuration():Number { return mElement.duration; } | ||
|
|
||
| /** | ||
| * The current playhead time | ||
| */ | ||
| public function getCurrentTime():Number { return mElement.currentTime; } | ||
| /** | ||
| * The current playhead time | ||
| */ | ||
| public function setCurrentTime(value:Number):void | ||
| { | ||
| // Work around a bug on iPad where setting currentTime to 0 makes | ||
| // later calls to currentTime stop working. This also prevents the | ||
| // ended event being triggered. | ||
| // @see http://stackoverflow.com/questions/3874070/missing-html5-video-ended-event-on-ipad | ||
| if (value == 0) | ||
| value = 0.01; | ||
| mElement.currentTime = value; | ||
| } | ||
|
|
||
| /** | ||
| * The source URL of the audio. | ||
| */ | ||
| public function getSrc():String { return mSrc; } | ||
| /** | ||
| * The source URL of the audio. | ||
| */ | ||
| public function setSrc(value:String):void | ||
| { | ||
| if (mSrc != value) { | ||
| mSrc = value; | ||
| mHasAudio = false; | ||
| mElement.preload = true; | ||
| mElement.autoplay = false; | ||
| mElement.controls = false; | ||
| pause(); | ||
| mElement.src = value; | ||
|
|
||
| mTries = 4; | ||
| HtmlUtils.addHtmlEventListener(mElement, "load", onLoadedFarEnough); | ||
|
|
||
| if (Capabilities.getOs() == OperatingSystem.IOS || Capabilities.getOs() == OperatingSystem.ANDROID) { | ||
| play(); | ||
| window.setTimeout(pause, 1); | ||
| } | ||
|
|
||
| clearTimer(); | ||
|
|
||
| onLoadComplete(); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Whether the audio is loaded | ||
| */ | ||
| public function getHasAudio():Boolean { return mHasAudio; } | ||
|
|
||
| /** | ||
| * @constructor | ||
| */ | ||
| public function Audio() | ||
| { | ||
| super(); | ||
|
|
||
| document.body.appendChild(mElement); | ||
| } | ||
|
|
||
| override protected function initializeElement():void | ||
| { | ||
| mElement = document.createElement("audio"); | ||
| } | ||
|
|
||
| public function dispose():void | ||
| { | ||
| mHasAudio = false; | ||
|
|
||
| // Clear the src attribute to make sure the audio is garbage collected. | ||
| if (mElement != null) mElement.src = ""; | ||
| clearTimer(); | ||
| removeHtmlEventListeners(); | ||
| } | ||
|
|
||
| /** | ||
| * Return a copy of the Audio with the same contents | ||
| */ | ||
| public function clone():ISrcDisplayObject | ||
| { | ||
| var theAudio:Audio = new Audio(); | ||
| theAudio.setSrc(getSrc()); | ||
|
|
||
| return theAudio; | ||
| } | ||
|
|
||
| /** | ||
| * Start video playback | ||
| */ | ||
| public function play():void | ||
| { | ||
| mElement.play(); | ||
| mPaused = false; | ||
| } | ||
|
|
||
| /** | ||
| * Pause video playback | ||
| */ | ||
| public function pause():void | ||
| { | ||
| mElement.pause(); | ||
| mPaused = true; | ||
| } | ||
|
|
||
| /** | ||
| * Removes html eventlisteners. | ||
| */ | ||
| protected function removeHtmlEventListeners():void | ||
| { | ||
| HtmlUtils.removeHtmlEventListener(mElement, "load", onLoadedFarEnough); | ||
| } | ||
|
|
||
| /** | ||
| * Removes html eventlisteners. | ||
| */ | ||
| protected function clearTimer():void | ||
| { | ||
| if (mTimer != -1) { | ||
| window.clearTimeout(mTimer); | ||
| mTimer = -1; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Handle when loading of the video is complete | ||
| */ | ||
| protected function onLoadComplete():void | ||
| { | ||
| mTimer = -1; | ||
|
|
||
| // stop trying to load if we don't have a source | ||
| if (mSrc == "") | ||
| return; | ||
|
|
||
| // If NETWORK_NO_SOURCE it means loading failed | ||
| if (mElement.error != null) { | ||
| onLoadError(); | ||
| return; | ||
| } | ||
|
|
||
| // Also allow networkState 2; 'loading', as '1' may not always be set e.g. in chrome. | ||
| // TODO: see if there is another way to signal that all data has been loaded. | ||
| // Note: in principle we should also dispatch 'LoadedFarEnough' which is when readyState == 4. | ||
| if (mElement.duration == 0 || | ||
| isNaN(mElement.duration) || | ||
| !((mElement.readyState == 4 || | ||
| mElement.readyState == 3) && | ||
| (mElement.networkState == 1 || | ||
| mElement.networkState == 2))) { | ||
| mTimer = window.setTimeout(onLoadComplete, 100); | ||
| return; | ||
| } | ||
|
|
||
| if (mElement.readyState !== 4 && mTries > 0) { | ||
| mTries--; | ||
| mTimer = window.setTimeout(onLoadComplete, 50); | ||
| return; | ||
| } | ||
|
|
||
| removeHtmlEventListeners(); | ||
|
|
||
| // Allready set complete | ||
| if (mHasAudio) return; | ||
|
|
||
| // Set the playhead time to the start of the video | ||
| setCurrentTime(0); | ||
|
|
||
| // Video has been loaded | ||
| mHasAudio = true; | ||
|
|
||
| // When the video has loaded we'll startup an event loop that will | ||
| // notify any listeners of TIME_CHANGED events. This can then be | ||
| // used for example to create custom player controls | ||
| if (!mLoopRunning) { | ||
| mLoopRunning = true; | ||
| Stage.getInstance().addEventListener(HJSEvent.ENTER_FRAME, onEventLoop); | ||
| } | ||
|
|
||
| // And we're done! | ||
| dispatchEvent(new HJSEvent(HJSEvent.COMPLETE)); | ||
| } | ||
|
|
||
| /** | ||
| * onLoadedFarEnough events on iOS devices, wait for these events | ||
| * before setting complete in order to not show QT logo | ||
| * @param aEvent | ||
| * | ||
| */ | ||
| protected function onLoadedFarEnough(aEvent:Event):void | ||
| { | ||
| removeHtmlEventListeners(); | ||
|
|
||
| onLoadComplete(); | ||
| } | ||
|
|
||
| /** | ||
| * Called when loading threw an error or was aborted for some reason | ||
| */ | ||
| protected function onLoadError():void | ||
| { | ||
| dispatchEvent(new HJSEvent(HJSEvent.IO_ERROR)); | ||
| } | ||
|
|
||
| /** | ||
| * An eventloop which notifies listeners of changes in the timestamp of | ||
| * the video or when playback has ended (when the end of the video has | ||
| * been reached). | ||
| */ | ||
| protected function onEventLoop(aEvent:HJSEvent):void | ||
| { | ||
| // If we don't have a video anymore then stop the loop | ||
| if (mSrc == "" || mSrc == null || !mHasAudio) { | ||
| Stage.getInstance().removeEventListener(HJSEvent.ENTER_FRAME, onEventLoop); | ||
| mLoopRunning = false; | ||
| return; | ||
| } | ||
|
|
||
| // If the playback has ended, send an event | ||
| if (mEnded != mElement.ended) { | ||
| mEnded = mElement.ended; | ||
| if (mEnded) | ||
| dispatchEvent(new HJSEvent(EVENT_ENDED)); | ||
| } | ||
|
|
||
| // If the currentTime has changed then send an event | ||
| if (mCurrentTime != mElement.currentTime) { | ||
| mCurrentTime = Math.round(mElement.currentTime * 25) / 25; | ||
| dispatchEvent(new DataEvent(EVENT_TIME_CHANGED, mCurrentTime)); | ||
| } | ||
| } | ||
| } | ||
| } |
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