summaryrefslogtreecommitdiff
path: root/static/player.js
blob: 882b5ca768b74ba4cad5d81fe13369352c076da3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
audio = null;
playlist = null;

// pre-load some icons
cache_images = new Array(
	'music-cached.png',
	'music-queued.png',
	'loading.gif'
);
var img = new Image();
for(var i = 0; i < cache_images.length; i++) {
	img.src = '/static/icons/' + cache_images[i];
}

function MusicListing(type, path, name, track, metadata, cached) {
	this.type = type;
	this.path = path;
	this.name = name ? name : path.split('/').pop();
	this.track = track;
	this.metadata = metadata;
	this.a = document.createElement('a');
	this.a.ml = this;

	this.get_text = function() {
		if(!metadata)
			return name;
		var s = '';
		if('artist' in metadata)
			s = metadata['artist'] + ' - ';
		if('title' in metadata)
			s += metadata['title'];
		if(s.length > 0 && track)
			s = track + ' ' + s;
		if(s.length == 0)
			s = name;
		return s;
	}

	this.play = function() {
		var path = '/play?path=' + encodeURIComponent(this.path);
		if(this.track)
			path += '&track=' + this.track;
		log('playing ' + path);
		xmlhttp = new XMLHttpRequest();
		xmlhttp.open('GET', path);
		xmlhttp.send(null);
	}

	this.recode = function() {
		var path = '/recode?path=' + encodeURIComponent(this.path);
		if(this.track)
			path += '&track=' + this.track;
		var a = this.a;
		var ml = this;
		var xmlhttp = new XMLHttpRequest();
		a.setAttribute('class', 'file file-queued');
		xmlhttp.open('GET', path);
		xmlhttp.send(null);
	}

	this.get_anchor = function() {
		var a = this.a;
		var className = type;
		if(cached)
			className += ' file-cached'
		a.setAttribute('class', className);
		a.setAttribute('href', '#');
		var name = this.get_text();
		a.appendChild(document.createTextNode(name));
		var ml = this;

		a.onclick = function() {
			if(type == 'dir') {
				list(path);
			} else if(type == 'file') {
				playlist.add(ml);
			}
			return false;
		}
		return a;
	}
}

function set_current(path) {
	document.getElementById('current-dir').innerHTML = 'Directory: ' + path;
}

function log(s) {
	logbox = document.getElementById('logbox');
	logbox.value += s + '\n';
	logbox.scrollTop = logbox.scrollHeight;
}

function change_url(url) {
	audio.set_src(url);

	var audio_src_url = document.getElementById('audio-src-url');
	audio_src_url.innerHTML = 'Playing: ' + url.replace('&', '&amp;');
}

function output_link(obj) {
	var a = obj.get_anchor();

	var li = document.createElement('li');
	li.appendChild(a);

	var song_links = document.getElementById('song-links');
	song_links.appendChild(li);
}

function list(root) {
	log('listing ' + root);
	var xmlhttp = new XMLHttpRequest();
	xmlhttp.onreadystatechange = function() {
		if(xmlhttp.readyState == 4) {
			set_current(root);
			var json = JSON.parse(xmlhttp.responseText);
			document.getElementById('song-links').innerHTML = '';
			// add "up" link
			if(root.length > 1) {
				up = root.substr(0, root.lastIndexOf('/'));
				if(up.length == 0)
					up = '/';
				l = new MusicListing('dir', up, '..');
				output_link(l);
			}
			for(var i = 0; i < json.length; i++) {
				var type = json[i]["type"];
				var path = json[i]["name"];
				var track = json[i]["track"];
				var name = path.substring(path.lastIndexOf('/')+1);
				var cached = type == "file" ? json[i]["cached"] : false;
				var metadata = json[i]["metadata"];
				log(metadata.artist);
				if('artist' in json[i]["metadata"])
					log('got artist');
				var l = new MusicListing(type, path, name, track, metadata, cached);
				output_link(l);
			}
		}
	}

	path = '/list?directory=' + encodeURIComponent(root);
	xmlhttp.open('GET', path);
	xmlhttp.send();
}

function add_directory() {
	var songs = document.getElementById('song-links').getElementsByTagName('a');
	for(var i = 0; i < songs.length; i++) {
		var a = songs[i];
		log(a);
		var ml = a.ml;
		log(ml);
		if(ml.type && ml.type == 'file')
			playlist.add(ml);
	}
}

var source = null;

function get_a(path, track) {
	var as = document.getElementById('song-links').getElementsByTagName('a');
	for(var i = 0; i < as.length; i++) {
		var a = as[i];
		if(a.ml.path == path && (!track || track == a.ml.track))
			return a;
	}
}

function event_handler(event) {
	data = JSON.parse(event.data);
	switch(data['type']) {
		case 'cached':
		case 'recoding':
			log('[' + data['type'] + '] ' + data['path']);
			var track = null;
			if('track' in data)
				track = data['track'];
			log('track: ' + track);
			// update directory browser
			var a = get_a(data['path'], track);
			if(a)
				a.setAttribute('class', 'file file-' + data['type']);
			// update song queue
			var li = playlist.get(data['path'], track);
			if(li) {
				a = li.getElementsByTagName('a')[0];
				if(data['type'] == 'cached') {
					// play the current song if we were waiting for it
					if(li == playlist.current)
						a.onclick();
					else
						a.setAttribute('class', '');
				} else {
					a.setAttribute('class', 'file-recoding');
				}
			}
			break;
		case 'play':
			log('[play] ' + data['path']);
			change_url(data['path']);
			audio.play();
			break;
		default:
			log('[event] unknown type: ' + data['type']);
	}
}

function event_open() {
	if(source)
		source.close();
	source = new EventSource('/events');
	source.onopen = function() { log('event source opened'); }
	source.onmessage = event_handler;
	source.onerror = function(event) { log('event source error'); }
	log('event source status: ' + source.readyState);
}

window.onload = function() {
	event_open();

	audio = new Audio();
	playlist = new Playlist(document.getElementById('playlist'), audio);
	audio.audio.addEventListener('ended', function() { playlist.next(); });
	list('/');
}