Player/js/player.js

function Player(sources) {
	this.playlist = sources;
	this.current = {};
	this.isPlaying = false;
	this.player;
	this.YTplayer = false;

	this.init = function() {
		this.loadYTplayer();
		this.bindEvents();
		console.log('init...');
	}

	this.bindEvents = function() {
		var toggle = document.getElementById('player-toggle');
		toggle.addEventListener('click', this.toggle);
		var previous = document.getElementById('player-previous');
		previous.addEventListener('click', this.previous);
		var next = document.getElementById('player-next');
		next.addEventListener('click', this.next);
	}

	this.newSong = function (videoId) {
		if (this.YTplayer)
			this.YTplayer.parentNode.removeChild(this.YTplayer);
		this.YTplayer = new YT.Player('YTplayer', {
			height: '0',
			width: '0',
			videoId: videoId,
			playerVars: {

			},
			events: {
				'onReady': onPlayerReady,
				'onStateChange': onPlayerStateChange
			}
		});
	}

	this.loadYTplayer = function() {
		var tag = document.createElement('script');
		tag.src = "https://www.youtube.com/iframe_api";
		var firstScriptTag = document.getElementsByTagName('script')[0];
		firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
	};

	this.seekPosition = function() {};
	this.toggle = function() {
		if (evaplayer.isPlaying) {
			evaplayer.YTplayer.pauseVideo();
		} else {
			evaplayer.YTplayer.playVideo();
		}
		evaplayer.isPlaying = !evaplayer.isPlaying;
		return evaplayer;
	};
	this.next = function() {
		return 
	};
	this.previous = function() {};
	this.init();
};

function onYouTubeIframeAPIReady() {
	evaplayer.newSong('519_pOvP9xs');
}

function onPlayerReady(event) {
	event.target.playVideo();
}

function onPlayerStateChange(event) {
	if (event.data == YT.PlayerState.PLAYING && !evaplayer.isPlaying) {
		evaplayer.isPlaying = true;
	}
}