Simple mp3 player

dev/Common/Audio.js

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+
+(function () {
+
+	'use strict';
+
+	var
+		window = require('window'),
+		$ = require('$'),
+
+		Globals = require('Common/Globals'),
+		Utils = require('Common/Utils'),
+		Links = require('Common/Links'),
+		Events = require('Common/Events')
+	;
+
+	/**
+	 * @constructor
+	 */
+	function Audio()
+	{
+		var self = this;
+
+		this.obj = window.Audio ? new window.Audio() : null;
+		this.objForNotification = window.Audio ? new window.Audio() : null;
+
+		this.supported = !Globals.bMobileDevice &&
+			this.obj && this.obj.canPlayType && this.obj.play &&
+			'' !== this.obj.canPlayType('audio/mpeg;');
+
+		if (this.obj && this.supported)
+		{
+			this.obj.preload = 'none';
+			this.obj.loop = false;
+			this.obj.autoplay = false;
+			this.obj.muted = false;
+
+			this.objForNotification.preload = 'none';
+			this.objForNotification.loop = false;
+			this.objForNotification.autoplay = false;
+			this.objForNotification.muted = false;
+			this.objForNotification.src = Links.sound('new-mail.mp3');
+
+			$(this.obj).on('ended', function () {
+				self.stop();
+			});
+
+			Events.sub('audio.api.stop', function () {
+				self.stop();
+			});
+
+			Events.sub('audio.api.play', function (sUrl, sName) {
+				self.playMp3(sUrl, sName);
+			});
+		}
+	}
+
+	Audio.prototype.obj = null;
+	Audio.prototype.objForNotification = null;
+	Audio.prototype.supported = false;
+
+	Audio.prototype.paused = function ()
+	{
+		return this.supported ? !!this.obj.paused : true;
+	};
+
+	Audio.prototype.stop = function ()
+	{
+		if (this.supported && this.obj.pause)
+		{
+			this.obj.pause();
+		}
+
+		Events.pub('audio.stop');
+	};
+
+	Audio.prototype.pause = Audio.prototype.stop;
+
+	Audio.prototype.playMp3 = function (sUrl, sName)
+	{
+		if (this.supported && this.obj.play)
+		{
+			this.obj.src = sUrl;
+			this.obj.play();
+
+			sName = Utils.isUnd(sName) ? '' : Utils.trim(sName);
+			if ('.mp3' === sName.toLowerCase().substr(-4))
+			{
+				sName = Utils.trim(sName.substr(0, sName.length - 4));
+			}
+
+			if ('' === sName)
+			{
+				sName = 'audio';
+			}
+
+			Events.pub('audio.start', [sName]);
+		}
+	};
+
+	Audio.prototype.playNotification = function ()
+	{
+		if (this.supported && this.objForNotification.play)
+		{
+			this.objForNotification.play();
+		}
+	};
+
+	module.exports = new Audio();
+
+}());