comparison johndyer-mediaelement-13fa20a/src/js/me-mediaelements.js @ 0:032bc65ebafc

added core components

+
+/*
+extension methods to <video> or <audio> object to bring it into parity with PluginMediaElement (see below)
+*/
+mejs.HtmlMediaElement = {
+	pluginType: 'native',
+	isFullScreen: false,
+
+	setCurrentTime: function (time) {
+		this.currentTime = time;
+	},
+
+	setMuted: function (muted) {
+		this.muted = muted;
+	},
+
+	setVolume: function (volume) {
+		this.volume = volume;
+	},
+
+	// for parity with the plugin versions
+	stop: function () {
+		this.pause();
+	},
+
+	// This can be a url string
+	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
+	setSrc: function (url) {
+		if (typeof url == 'string') {
+			this.src = url;
+		} else {
+			var i, media;
+
+			for (i=0; i<url.length; i++) {
+				media = url[i];
+				if (this.canPlayType(media.type)) {
+					this.src = media.src;
+				}
+			}
+		}
+	},
+
+	setVideoSize: function (width, height) {
+		this.width = width;
+		this.height = height;
+	}
+};
+
+/*
+Mimics the <video/audio> element by calling Flash's External Interface or Silverlights [ScriptableMember]
+*/
+mejs.PluginMediaElement = function (pluginid, pluginType, mediaUrl) {
+	this.id = pluginid;
+	this.pluginType = pluginType;
+	this.src = mediaUrl;
+	this.events = {};
+};
+
+// JavaScript values and ExternalInterface methods that match HTML5 video properties methods
+// http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/fl/video/FLVPlayback.html
+// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
+mejs.PluginMediaElement.prototype = {
+
+	// special
+	pluginElement: null,
+	pluginType: '',
+	isFullScreen: false,
+
+	// not implemented :(
+	playbackRate: -1,
+	defaultPlaybackRate: -1,
+	seekable: [],
+	played: [],
+
+	// HTML5 read-only properties
+	paused: true,
+	ended: false,
+	seeking: false,
+	duration: 0,
+	error: null,
+
+	// HTML5 get/set properties, but only set (updated by event handlers)
+	muted: false,
+	volume: 1,
+	currentTime: 0,
+
+	// HTML5 methods
+	play: function () {
+		if (this.pluginApi != null) {
+			this.pluginApi.playMedia();
+			this.paused = false;
+		}
+	},
+	load: function () {
+		if (this.pluginApi != null) {
+			this.pluginApi.loadMedia();
+			this.paused = false;
+		}
+	},
+	pause: function () {
+		if (this.pluginApi != null) {
+			this.pluginApi.pauseMedia();
+			this.paused = true;
+		}
+	},
+	stop: function () {
+		if (this.pluginApi != null) {
+			this.pluginApi.stopMedia();
+			this.paused = true;
+		}
+	},
+	canPlayType: function(type) {
+		var i,
+			j,
+			pluginInfo,
+			pluginVersions = mejs.plugins[this.pluginType];
+
+		for (i=0; i<pluginVersions.length; i++) {
+			pluginInfo = pluginVersions[i];
+
+			// test if user has the correct plugin version
+			if (mejs.PluginDetector.hasPluginVersion(this.pluginType, pluginInfo.version)) {
+
+				// test for plugin playback types
+				for (j=0; j<pluginInfo.types.length; j++) {
+					// find plugin that can play the type
+					if (type == pluginInfo.types[j]) {
+						return true;
+					}
+				}
+			}
+		}
+
+		return false;
+	},
+
+	// custom methods since not all JavaScript implementations support get/set
+
+	// This can be a url string
+	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
+	setSrc: function (url) {
+		if (typeof url == 'string') {
+			this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(url));
+			this.src = mejs.Utility.absolutizeUrl(url);
+		} else {
+			var i, media;
+
+			for (i=0; i<url.length; i++) {
+				media = url[i];
+				if (this.canPlayType(media.type)) {
+					this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(media.src));
+					this.src = mejs.Utility.absolutizeUrl(url);
+				}
+			}
+		}
+
+	},
+	setCurrentTime: function (time) {
+		if (this.pluginApi != null) {
+			this.pluginApi.setCurrentTime(time);
+			this.currentTime = time;
+		}
+	},
+	setVolume: function (volume) {
+		if (this.pluginApi != null) {
+			this.pluginApi.setVolume(volume);
+			this.volume = volume;
+		}
+	},
+	setMuted: function (muted) {
+		if (this.pluginApi != null) {
+			this.pluginApi.setMuted(muted);
+			this.muted = muted;
+		}
+	},
+
+	// additional non-HTML5 methods
+	setVideoSize: function (width, height) {
+		if ( this.pluginElement.style) {
+			this.pluginElement.style.width = width + 'px';
+			this.pluginElement.style.height = height + 'px';
+		}
+		if (this.pluginApi != null) {
+			this.pluginApi.setVideoSize(width, height);
+		}
+	},
+
+	setFullscreen: function (fullscreen) {
+		if (this.pluginApi != null) {
+			this.pluginApi.setFullscreen(fullscreen);
+		}
+	},
+
+	// start: fake events
+	addEventListener: function (eventName, callback, bubble) {
+		this.events[eventName] = this.events[eventName] || [];
+		this.events[eventName].push(callback);
+	},
+	removeEventListener: function (eventName, callback) {
+		if (!eventName) { this.events = {}; return true; }
+		var callbacks = this.events[eventName];
+		if (!callbacks) return true;
+		if (!callback) { this.events[eventName] = []; return true; }
+		for (i = 0; i < callbacks.length; i++) {
+			if (callbacks[i] === callback) {
+				this.events[eventName].splice(i, 1);
+				return true;
+			}
+		}
+		return false;
+	},	
+	dispatchEvent: function (eventName) {
+		var i,
+			args,
+			callbacks = this.events[eventName];
+
+		if (callbacks) {
+			args = Array.prototype.slice.call(arguments, 1);
+			for (i = 0; i < callbacks.length; i++) {
+				callbacks[i].apply(null, args);
+			}
+		}
+	}
+	// end: fake events
+};