update

Fix bash location on nixOS, fix download ids start with -

.gitignore

@@ -2,3 +2,4 @@ node_modules
 _youtube/*
 !_youtube/.empty
 cyp.service
+passwords.json

README.md

@@ -57,6 +57,18 @@ docker run --network=host -v "$(pwd)"/_youtube:/cyp/_youtube cyp
 docker run --network=host -e PORT=12345 cyp
 ```
 
+## Password-protected MPD
+
+Create a `passwords.json` file in CYPs home directory. Specify passwords for available MPD servers:
+
+```json
+{
+  "localhost:6600": "my-pass-1",
+  "some.other.server.or.ip:12345": "my-pass-2
+}
+```
+
+Make sure that hostnames and ports match those specified via the `server` querystring argument (defaults to `localhost:6600`).
 
 ## Technology
   - Connected to MPD via WebSockets (using the [ws2mpd](https://github.com/ondras/ws2mpd/) bridge)

app/css/art.less

@@ -1,4 +1,5 @@
 .art {
+	flex: none;
 	.icon, img {
 		display: block;
 		width: 100%;

app/css/cyp.less

@@ -84,6 +84,7 @@ select {
 @import "elements/range.less";
 @import "elements/playlist.less";
 @import "elements/search.less";
+@import "elements/filter.less";
 @import "elements/library.less";
 @import "elements/tag.less";
 @import "elements/back.less";

app/css/elements/app.less

@@ -4,14 +4,13 @@ cyp-app {
 	box-sizing: border-box;
 	margin: 0 auto;
 	max-width: 800px;
-	height: 100vh;
+	height: calc(100px * var(--vh));
 
 	font-family: lato, sans-serif;
 	font-size: 16px;
 	line-height: 1.25;
 	background-color: var(--bg);
 	color: var(--fg);
-	text-shadow: var(--text-shadow);
 
 	white-space: nowrap;
 }

app/css/elements/filter.less

@@ -0,0 +1,8 @@
+cyp-filter {
+	.item;
+
+	.icon {
+		width: 32px;
+		margin-left: var(--icon-spacing);
+	}
+}

app/css/elements/player.less

@@ -16,7 +16,6 @@ cyp-player {
 	}
 
 	.art {
-		flex: none;
 		width: @art-size;
 		height: @art-size;
 	}

app/css/elements/search.less

@@ -3,7 +3,7 @@ cyp-search {
 		.item;
 		align-items: stretch;
 
-		button:first-of-type {
+		button:first-of-type { // pseudo-class to override
 			margin-left: var(--icon-spacing);
 		}
 	}

app/css/elements/tag.less

@@ -9,9 +9,5 @@ cyp-tag {
 		margin-right: var(--icon-spacing);
 		width: 64px;
 		height: 64px;
-
-		.icon {
-			filter: drop-shadow(var(--text-shadow));
-		}
 	}
 }

app/css/mixins.less

@@ -50,10 +50,8 @@
 
 	padding: 8px;
 
-
 	> .icon {
 		margin-right: var(--icon-spacing);
-		filter: drop-shadow(var(--text-shadow));
 	}
 
 	.title {

app/css/variables.less

@@ -34,6 +34,12 @@ cyp-app[theme=dark] { .dark(); }
 	cyp-app[theme=auto] { .light(); }
 }
 
+@media (max-width: 640px), (max-height:640px) {
+	cyp-app[theme] {
+		--text-shadow: none;
+	}
+}
+
 cyp-app[color=dodgerblue] {
 	--primary-raw: 30, 144, 255;
 }

app/icons/filter-variant.svg

@@ -0,0 +1 @@
+<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="24" height="24" viewBox="0 0 24 24"><path d="M6,13H18V11H6M3,6V8H21V6M10,18H14V16H10V18Z" /></svg>

app/index.html

@@ -5,9 +5,100 @@
 		<meta name="viewport" content="width=device-width" />
 		<title>Control Your Player</title>
 		<link rel="stylesheet" href="cyp.css" />
-		<link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%22100%22>🎵</text></svg>" />
+		<style>
+			/* Float cancel and delete buttons and add an equal width */
+			.popupbtn {
+				background-color: rgb(141, 0, 0);
+				color: rgb(255, 255, 255);
+				padding: 14px 20px;
+  			margin: 8px 0;
+				border: none;
+				cursor: pointer;
+				width: 100%;
+				opacity: 0.9;
+				display: block !important;
+				box-sizing: border-box;
+			}
+			.popupbtn:hover {
+				opacity:1;
+			}
+
+			/* Add padding and center-align text to the container */
+			.popupcontainer {
+				padding: 16px;
+				text-align: center;
+			}
+
+			/* The Modal (background) */
+			.popupmodal {
+				display: none; /* Hidden by default */
+				position: fixed; /* Stay in place */
+				z-index: 2; /* Sit on top */
+				left: 0;
+				top: 0;
+				width: 100%; /* Full width */
+				height: 100%; /* Full height */
+				overflow: auto; /* Enable scroll if needed */
+				background-color: #474e5d;
+				padding-top: 50px;
+			}
+
+			/* Modal Content/Box */
+			.popupmodal-content {
+				background-color: #fefefe;
+				margin: 5% auto 15% auto; /* 5% from the top, 15% from the bottom and centered */
+				border: 1px solid #888;
+				width: 80%; /* Could be more or less, depending on screen size */
+			}
+
+			/* Style the horizontal ruler */
+			.popup-hr {
+				border: 1px solid #f1f1f1;
+				margin-bottom: 25px;
+			}
+
+			/* The Modal Close Button (x) */
+			.popup-close {
+				position: absolute;
+				right: 35px;
+				top: 15px;
+				font-size: 40px;
+				font-weight: bold;
+				color: #f1f1f1;
+			}
+
+			.popup-close:hover,
+			.popup-close:focus {
+				color: #f44336;
+				cursor: pointer;
+			}
+
+			/* Clear floats */
+			.popup-clearfix::after {
+				content: "";
+				clear: both;
+				display: table;
+			}
+		</style>
+		<link rel="icon" href="https://emojimage.toad.cz/🎵" />
+		<meta name="mobile-web-app-capable" content="yes" />
 	</head>
 	<body>
+		<div id="warningpopup" class="popupmodal">
+			<span onclick="document.getElementById('warningpopup').style.display='none'" class="popup-close" title="x">×</span>
+			<div class="popupmodal-content">
+				<div class="popupcontainer">
+					<h2>Warning</h2>
+					<p>Be aware there may be other users listening to the same stream.</p>
+					<p>Pausing or changing volume on the server will affect them as well.</p>
+					<p>Please avoid server-side pausing or volume change if possible.</p>
+					<p>You can find client-side volume and pause control in the Settings Panel.</p>
+					<div class="popup-clearfix">
+						<button type="button" onclick="document.getElementById('warningpopup').style.display='none'" class="popupbtn">OK</button>
+					</div>
+				</div>
+			</div>
+		</div>
 		<cyp-app theme="dark" color="dodgerblue">
 		<header>
 			<cyp-player>
@@ -97,6 +188,6 @@
 		</footer>
 		</cyp-app>
 
-		<script type="module" src="cyp.js"></script>
+		<script type="module" src="cyp.js?2"></script>
 	</body>
 </html>

app/js/art.js

@@ -23,9 +23,13 @@ async function bytesToImage(bytes) {
 }
 
 function resize(image) {
+	while (Math.min(image.width, image.height) >= 2*conf.artSize) {
+		let tmp = html.node("canvas", {width:image.width/2, height:image.height/2});
+		tmp.getContext("2d").drawImage(image, 0, 0, tmp.width, tmp.height);
+		image = tmp;
+	}
 	const canvas = html.node("canvas", {width:conf.artSize, height:conf.artSize});
-	const ctx = canvas.getContext("2d");
-	ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
+	canvas.getContext("2d").drawImage(image, 0, 0, canvas.width, canvas.height);
 	return canvas;
 }
 

app/js/conf.js

@@ -1,4 +1,4 @@
-export const artSize = 96;
+export const artSize = 96 * (window.devicePixelRatio || 1);
 export const ytPath = "_youtube";
 export let ytLimit = 3;
 

app/js/cyp.js

@@ -11,3 +11,10 @@ import "./elements/library.js";
 import "./elements/tag.js";
 import "./elements/back.js";
 import "./elements/path.js";
+
+function updateSize() {
+	document.body.style.setProperty("--vh", window.innerHeight/100);
+}
+
+window.addEventListener("resize", updateSize);
+updateSize();

app/js/elements/app.js

@@ -1,5 +1,4 @@
-import * as mpd from "../mpd.js";
-import * as mpdMock from "../mpd-mock.js";
+import MPD from "../mpd.js";
 import * as html from "../html.js";
 
 function initIcons() {
@@ -11,43 +10,24 @@ function initIcons() {
 	});
 }
 
-async function initMpd(app) {
-	try {
-		await mpd.init(app);
-		return mpd;
-	} catch (e) {
-		return mpdMock;
-	}
-}
-
 class App extends HTMLElement {
 	static get observedAttributes() { return ["component"]; }
 
 	constructor() {
 		super();
-
 		initIcons();
 	}
 
 	async connectedCallback() {
-		this.mpd = await initMpd(this);
+		await waitForChildren(this);
 
-		const children = Array.from(this.querySelectorAll("*"));
-		const names = children.map(node => node.nodeName.toLowerCase())
-			.filter(name => name.startsWith("cyp-"));
-		const unique = new Set(names);
-
-		const promises = [...unique].map(name => customElements.whenDefined(name));
-		await Promise.all(promises);
+		window.addEventListener("hashchange", e => this._onHashChange());
+		this._onHashChange();
 
+		await this._connect();
 		this.dispatchEvent(new CustomEvent("load"));
 
-		const onHashChange = () => {
-			const component = location.hash.substring(1) || "queue";
-			if (component != this.component) { this.component = component; }
-		}
-		window.addEventListener("hashchange", onHashChange);
-		onHashChange();
+		this._initMediaHandler();
 	}
 
 	attributeChangedCallback(name, oldValue, newValue) {
@@ -62,6 +42,85 @@ class App extends HTMLElement {
 
 	get component() { return this.getAttribute("component"); }
 	set component(component) { this.setAttribute("component", component); }
+
+	_onHashChange() {
+		const component = location.hash.substring(1) || "queue";
+		if (component != this.component) { this.component = component; }
+	}
+
+	_onChange(changed) { this.dispatchEvent(new CustomEvent("idle-change", {detail:changed})); }
+
+	_onClose(e) {
+		setTimeout(() => this._connect(), 3000);
+	}
+
+	async _connect() {
+		const attempts = 3;
+		for (let i=0;i<attempts;i++) {
+			try {
+				let mpd = await MPD.connect();
+				mpd.onChange = changed => this._onChange(changed);
+				mpd.onClose = e => this._onClose(e);
+				this.mpd = mpd;
+				return;
+			} catch (e) {
+				await sleep(500);
+			}
+		}
+		alert(`Failed to connect to MPD after ${attempts} attempts. Please reload the page to try again.`);
+	}
+
+	_initMediaHandler() {
+		// check support mediaSession
+		if (!('mediaSession' in navigator)) {
+			console.log('mediaSession is not supported');
+			return;
+		}
+
+		// DOM (using media session controls are allowed only if there is audio/video tag)
+		const audio = html.node("audio", {loop: true}, "", this);
+		html.node("source", {src: 'https://raw.githubusercontent.com/anars/blank-audio/master/10-seconds-of-silence.mp3'}, '', audio);
+
+		// Init event session (play audio) on click (because restrictions by web browsers)
+		window.addEventListener('click', () => {
+				audio.play();
+		}, {once: true});
+
+		// mediaSession define metadata
+		navigator.mediaSession.metadata = new MediaMetadata({
+			title: 'Control Your Player'
+		});
+
+		// mediaSession define action handlers
+		navigator.mediaSession.setActionHandler('play', () => {
+			this.mpd.command("play")
+			audio.play()
+		});
+		navigator.mediaSession.setActionHandler('pause', () => {
+			this.mpd.command("pause 1")
+			audio.pause()
+		});
+		navigator.mediaSession.setActionHandler('previoustrack', () => {
+			this.mpd.command("previous")
+			audio.play()
+		});
+		navigator.mediaSession.setActionHandler('nexttrack', () => {
+			this.mpd.command("next")
+			audio.play()
+		});
+	}
 }
 
 customElements.define("cyp-app", App);
+
+function sleep(ms) { return new Promise(resolve =>setTimeout(resolve, ms)); }
+
+function waitForChildren(app) {
+	const children = Array.from(app.querySelectorAll("*"));
+	const names = children.map(node => node.nodeName.toLowerCase())
+		.filter(name => name.startsWith("cyp-"));
+	const unique = new Set(names);
+
+	const promises = [...unique].map(name => customElements.whenDefined(name));
+	return Promise.all(promises);
+}

app/js/elements/filter.js

@@ -0,0 +1,33 @@
+import * as html from "../html.js";
+
+
+const SELECTOR = ["cyp-tag", "cyp-path", "cyp-song"].join(", ");
+
+export default class Filter extends HTMLElement {
+	constructor() {
+		super();
+		this._built = false;
+	}
+
+	get value() { return this._input.value.trim(); }
+	set value(value) { this._input.value = value; }
+	get _input() { return this.querySelector("input"); }
+
+	connectedCallback() {
+		if (this._built) { return; }
+
+		html.node("input", {type:"text"}, "", this);
+		html.icon("filter-variant", this);
+
+		this._input.addEventListener("input", e => this._apply());
+		this._built = true;
+	}
+
+	_apply() {
+		let value = this.value.toLowerCase();
+		let all = [...this.parentNode.querySelectorAll(SELECTOR)];
+		all.forEach(item => item.hidden = !item.matchPrefix(value));
+	}
+}
+
+customElements.define("cyp-filter", Filter);

app/js/elements/library.js

@@ -5,21 +5,21 @@ import Path from "./path.js";
 import Back from "./back.js";
 import Song from "./song.js";
 import Search from "./search.js";
+import Filter from "./filter.js";
 import { escape, serializeFilter } from "../mpd.js";
 
 
 const SORT = "-Track";
 const TAGS = {
 	"Album": "Albums",
-	"AlbumArtist": "Artists"
+	"AlbumArtist": "Artists",
+	"Genre": "Genres"
 }
 
 function nonempty(str) { return (str.length > 0); }
 
 function createEnqueueCommand(node) {
-	if (node instanceof Song) {
-		return `add "${escape(node.data["file"])}"`;
-	} else if (node instanceof Path) {
+	if (node instanceof Song || node instanceof Path) {
 		return `add "${escape(node.file)}"`;
 	} else if (node instanceof Tag) {
 		return [
@@ -44,6 +44,8 @@ class Library extends Component {
 			if (query.length < 3) { return; }
 			this._doSearch(query);
 		}
+
+		this._filter = new Filter();
 	}
 
 	_popState() {
@@ -78,6 +80,9 @@ class Library extends Component {
 		html.button({icon:"artist"}, "Artists and albums", nav)
 			.addEventListener("click", _ => this._pushState({type:"tags", tag:"AlbumArtist"}));
 
+		html.button({icon:"music"}, "Genres", nav)
+			.addEventListener("click", _ => this._pushState({type:"tags", tag:"Genre"}));
+
 		html.button({icon:"folder"}, "Files and directories", nav)
 			.addEventListener("click", _ => this._pushState({type:"path", path:""}));
 
@@ -102,11 +107,12 @@ class Library extends Component {
 	}
 
 	async _listTags(tag, filter = {}) {
-		const values = await this._mpd.listTags(tag, filter);
+		const values = (await this._mpd.listTags(tag, filter)).filter(nonempty);
 		html.clear(this);
 
-		if ("AlbumArtist" in filter) { this._buildBack(); }
-		values.filter(nonempty).forEach(value => this._buildTag(tag, value, filter));
+		if ("AlbumArtist" in filter || "Genre" in filter) { this._buildBack(); }
+		(values.length > 0) && this._addFilter();
+		values.forEach(value => this._buildTag(tag, value, filter));
 	}
 
 	async _listPath(path) {
@@ -114,6 +120,7 @@ class Library extends Component {
 		html.clear(this);
 
 		path && this._buildBack();
+		(paths["directory"].length + paths["file"].length > 0) && this._addFilter();
 		paths["directory"].forEach(path => this._buildPath(path));
 		paths["file"].forEach(path => this._buildPath(path));
 	}
@@ -122,6 +129,7 @@ class Library extends Component {
 		const songs = await this._mpd.listSongs(filter);
 		html.clear(this);
 		this._buildBack();
+		(songs.length > 0 && this._addFilter());
 		songs.forEach(song => this.appendChild(new Song(song)));
 	}
 
@@ -158,7 +166,7 @@ class Library extends Component {
 		let results = new Map();
 		songs.forEach(song => {
 			let filter = {}, value;
-			const artist = song["AlbumArtist"] || song["Artist"]
+			const artist = song["AlbumArtist"] || song["Artist"];
 
 			if (tag == "Album") {
 				value = song[tag];
@@ -177,6 +185,7 @@ class Library extends Component {
 		let node;
 		switch (tag) {
 			case "AlbumArtist":
+			case "Genre":
 				node = new Tag(tag, value, filter);
 				this.appendChild(node);
 				node.onClick = () => this._pushState({type:"tags", tag:"Album", filter:node.createChildFilter()});
@@ -215,6 +224,11 @@ class Library extends Component {
 		}
 	}
 
+	_addFilter() {
+		this.appendChild(this._filter);
+		this._filter.value = "";
+	}
+
 	_initCommands() {
 		const sel = this.selection;
 

app/js/elements/menu.js

@@ -1,19 +1,23 @@
 import Component from "../component.js";
 
 class Menu extends Component {
-	_onAppLoad() {
+	connectedCallback() {
+		super.connectedCallback();
+
 		/** @type HTMLElement[] */
 		this._tabs = Array.from(this.querySelectorAll("[data-for]"));
 
 		this._tabs.forEach(tab => {
 			tab.addEventListener("click", _ => this._app.setAttribute("component", tab.dataset.for));
 		});
+	}
 
+	_onAppLoad() {
 		this._app.addEventListener("queue-length-change", e => {
 			this.querySelector(".queue-length").textContent = `(${e.detail})`;
 		});
-
 	}
+
 	_onComponentChange(component) {
 		this._tabs.forEach(tab => {
 			tab.classList.toggle("active", tab.dataset.for == component);

app/js/elements/player.js

@@ -81,8 +81,8 @@ class Player extends Component {
 			this._dispatchSongChange(data);
 		}
 
-		let artistNew = data["AlbumArtist"] || data["Artist"];
-		let artistOld = this._current.song["AlbumArtist"] || this._current.song["Artist"];
+		let artistNew = data["Artist"] || data["AlbumArtist"];
+		let artistOld = this._current.song["Artist"] || this._current.song["AlbumArtist"];
 		let albumNew = data["Album"];
 		let albumOld = this._current.song["Album"];
 

app/js/elements/queue.js

@@ -91,16 +91,21 @@ class Queue extends Component {
 			this._mpd.command(commands.reverse()); // move last first
 		}, {label:"Down", icon:"arrow-down-bold"});
 
-		sel.addCommand(items => {
+		sel.addCommand(async items => {
 			let name = prompt("Save selected songs as a playlist?", "name");
 			if (name === null) { return; }
 
 			name = escape(name);
+			try { // might not exist
+				await this._mpd.command(`rm "${name}"`);
+			} catch (e) {}
+
 			const commands = items.map(item => {
 				return `playlistadd "${name}" "${escape(item.file)}"`;
 			});
+			await this._mpd.command(commands);
 
-			this._mpd.command(commands); // FIXME notify?
+			sel.clear();
 		}, {label:"Save", icon:"content-save"});
 
 		sel.addCommand(async items => {

app/js/elements/tag.js

@@ -5,7 +5,8 @@ import Item from "../item.js";
 
 const ICONS = {
 	"AlbumArtist": "artist",
-	"Album": "album"
+	"Album": "album",
+	"Genre": "music"
 }
 
 export default class Tag extends Item {

app/js/elements/yt.js

@@ -41,15 +41,19 @@ class YT extends Component {
 
 		let url = `/youtube?q=${encodeURIComponent(query)}&limit=${encodeURIComponent(conf.ytLimit)}`;
 		let response = await fetch(url);
-		let results = await response.json();
+		if (response.status == 200) {
+			let results = await response.json();
+			results.forEach(result => {
+				let node = new Result(result.title);
+				this.appendChild(node);
+				node.addButton("download", () => this._download(result.id));
+			});
+		} else {
+			let text = await response.text();
+			alert(text);
+		}
 
 		this._search.pending(false);
-
-		results.forEach(result => {
-			let node = new Result(result.title);
-			this.appendChild(node);
-			node.addButton("download", () => this._download(result.id));
-		});
 	}
 
 
@@ -83,7 +87,7 @@ class YT extends Component {
 		const wasHidden = this.hidden;
 		this.hidden = !isThis;
 
-		if (!wasHidden && isThis) { this._showRoot(); }
+		if (!wasHidden && isThis) { this._clear(); }
 	}
 }
 

app/js/format.js

@@ -9,9 +9,16 @@ export function time(sec) {
 
 export function subtitle(data, options = {duration:true}) {
 	let tokens = [];
-	data["Artist"] && tokens.push(data["Artist"]);
+
+	if (data["Artist"]) {
+		tokens.push(data["Artist"]);
+	} else if (data["AlbumArtist"]) {
+		tokens.push(data["AlbumArtist"]);
+	}
+
 	data["Album"] && tokens.push(data["Album"]);
 	options.duration && data["duration"] && tokens.push(time(Number(data["duration"])));
+
 	return tokens.join(SEPARATOR);
 }
 

app/js/icons.js

@@ -1,15 +1,33 @@
 let ICONS={};
-ICONS["library-music"] = `<svg viewBox="0 0 24 24">
-  <path d="M4,6H2V20A2,2 0 0,0 4,22H18V20H4M18,7H15V12.5A2.5,2.5 0 0,1 12.5,15A2.5,2.5 0 0,1 10,12.5A2.5,2.5 0 0,1 12.5,10C13.07,10 13.58,10.19 14,10.5V5H18M20,2H8A2,2 0 0,0 6,4V16A2,2 0 0,0 8,18H20A2,2 0 0,0 22,16V4A2,2 0 0,0 20,2Z"/>
-</svg>`;
-ICONS["plus"] = `<svg viewBox="0 0 24 24">
-  <path d="M19,13H13V19H11V13H5V11H11V5H13V11H19V13Z"/>
+ICONS["playlist-music"] = `<svg viewBox="0 0 24 24">
+  <path d="M15,6H3V8H15V6M15,10H3V12H15V10M3,16H11V14H3V16M17,6V14.18C16.69,14.07 16.35,14 16,14A3,3 0 0,0 13,17A3,3 0 0,0 16,20A3,3 0 0,0 19,17V8H22V6H17Z"/>
 </svg>`;
 ICONS["folder"] = `<svg viewBox="0 0 24 24">
   <path d="M10,4H4C2.89,4 2,4.89 2,6V18A2,2 0 0,0 4,20H20A2,2 0 0,0 22,18V8C22,6.89 21.1,6 20,6H12L10,4Z"/>
 </svg>`;
-ICONS["playlist-music"] = `<svg viewBox="0 0 24 24">
-  <path d="M15,6H3V8H15V6M15,10H3V12H15V10M3,16H11V14H3V16M17,6V14.18C16.69,14.07 16.35,14 16,14A3,3 0 0,0 13,17A3,3 0 0,0 16,20A3,3 0 0,0 19,17V8H22V6H17Z"/>
+ICONS["shuffle"] = `<svg viewBox="0 0 24 24">
+  <path d="M14.83,13.41L13.42,14.82L16.55,17.95L14.5,20H20V14.5L17.96,16.54L14.83,13.41M14.5,4L16.54,6.04L4,18.59L5.41,20L17.96,7.46L20,9.5V4M10.59,9.17L5.41,4L4,5.41L9.17,10.58L10.59,9.17Z"/>
+</svg>`;
+ICONS["artist"] = `<svg viewBox="0 0 24 24">
+  <path d="M11,14C12,14 13.05,14.16 14.2,14.44C13.39,15.31 13,16.33 13,17.5C13,18.39 13.25,19.23 13.78,20H3V18C3,16.81 3.91,15.85 5.74,15.12C7.57,14.38 9.33,14 11,14M11,12C9.92,12 9,11.61 8.18,10.83C7.38,10.05 7,9.11 7,8C7,6.92 7.38,6 8.18,5.18C9,4.38 9.92,4 11,4C12.11,4 13.05,4.38 13.83,5.18C14.61,6 15,6.92 15,8C15,9.11 14.61,10.05 13.83,10.83C13.05,11.61 12.11,12 11,12M18.5,10H20L22,10V12H20V17.5A2.5,2.5 0 0,1 17.5,20A2.5,2.5 0 0,1 15,17.5A2.5,2.5 0 0,1 17.5,15C17.86,15 18.19,15.07 18.5,15.21V10Z"/>
+</svg>`;
+ICONS["download"] = `<svg viewBox="0 0 24 24">
+  <path d="M5,20H19V18H5M19,9H15V3H9V9H5L12,16L19,9Z"/>
+</svg>`;
+ICONS["checkbox-marked-outline"] = `<svg viewBox="0 0 24 24">
+  <path d="M19,19H5V5H15V3H5C3.89,3 3,3.89 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V11H19M7.91,10.08L6.5,11.5L11,16L21,6L19.59,4.58L11,13.17L7.91,10.08Z"/>
+</svg>`;
+ICONS["magnify"] = `<svg viewBox="0 0 24 24">
+  <path d="M9.5,3A6.5,6.5 0 0,1 16,9.5C16,11.11 15.41,12.59 14.44,13.73L14.71,14H15.5L20.5,19L19,20.5L14,15.5V14.71L13.73,14.44C12.59,15.41 11.11,16 9.5,16A6.5,6.5 0 0,1 3,9.5A6.5,6.5 0 0,1 9.5,3M9.5,5C7,5 5,7 5,9.5C5,12 7,14 9.5,14C12,14 14,12 14,9.5C14,7 12,5 9.5,5Z"/>
+</svg>`;
+ICONS["delete"] = `<svg viewBox="0 0 24 24">
+  <path d="M19,4H15.5L14.5,3H9.5L8.5,4H5V6H19M6,19A2,2 0 0,0 8,21H16A2,2 0 0,0 18,19V7H6V19Z"/>
+</svg>`;
+ICONS["rewind"] = `<svg viewBox="0 0 24 24">
+  <path d="M11.5,12L20,18V6M11,18V6L2.5,12L11,18Z"/>
+</svg>`;
+ICONS["cancel"] = `<svg viewBox="0 0 24 24">
+  <path d="M12,2A10,10 0 0,1 22,12A10,10 0 0,1 12,22A10,10 0 0,1 2,12A10,10 0 0,1 12,2M12,4A8,8 0 0,0 4,12C4,13.85 4.63,15.55 5.68,16.91L16.91,5.68C15.55,4.63 13.85,4 12,4M12,20A8,8 0 0,0 20,12C20,10.15 19.37,8.45 18.32,7.09L7.09,18.32C8.45,19.37 10.15,20 12,20Z"/>
 </svg>`;
 ICONS["settings"] = `<svg viewBox="0 0 24 24">
   <path d="M12,15.5A3.5,3.5 0 0,1 8.5,12A3.5,3.5 0 0,1 12,8.5A3.5,3.5 0 0,1 15.5,12A3.5,3.5 0 0,1 12,15.5M19.43,12.97C19.47,12.65 19.5,12.33 19.5,12C19.5,11.67 19.47,11.34 19.43,11L21.54,9.37C21.73,9.22 21.78,8.95 21.66,8.73L19.66,5.27C19.54,5.05 19.27,4.96 19.05,5.05L16.56,6.05C16.04,5.66 15.5,5.32 14.87,5.07L14.5,2.42C14.46,2.18 14.25,2 14,2H10C9.75,2 9.54,2.18 9.5,2.42L9.13,5.07C8.5,5.32 7.96,5.66 7.44,6.05L4.95,5.05C4.73,4.96 4.46,5.05 4.34,5.27L2.34,8.73C2.21,8.95 2.27,9.22 2.46,9.37L4.57,11C4.53,11.34 4.5,11.67 4.5,12C4.5,12.33 4.53,12.65 4.57,12.97L2.46,14.63C2.27,14.78 2.21,15.05 2.34,15.27L4.34,18.73C4.46,18.95 4.73,19.03 4.95,18.95L7.44,17.94C7.96,18.34 8.5,18.68 9.13,18.93L9.5,21.58C9.54,21.82 9.75,22 10,22H14C14.25,22 14.46,21.82 14.5,21.58L14.87,18.93C15.5,18.67 16.04,18.34 16.56,17.94L19.05,18.95C19.27,19.03 19.54,18.95 19.66,18.73L21.66,15.27C21.78,15.05 21.73,14.78 21.54,14.63L19.43,12.97Z"/>
@@ -17,73 +35,55 @@ ICONS["settings"] = `<svg viewBox="0 0 24 24">
 ICONS["pause"] = `<svg viewBox="0 0 24 24">
   <path d="M14,19H18V5H14M6,19H10V5H6V19Z"/>
 </svg>`;
-ICONS["artist"] = `<svg viewBox="0 0 24 24">
-  <path d="M11,14C12,14 13.05,14.16 14.2,14.44C13.39,15.31 13,16.33 13,17.5C13,18.39 13.25,19.23 13.78,20H3V18C3,16.81 3.91,15.85 5.74,15.12C7.57,14.38 9.33,14 11,14M11,12C9.92,12 9,11.61 8.18,10.83C7.38,10.05 7,9.11 7,8C7,6.92 7.38,6 8.18,5.18C9,4.38 9.92,4 11,4C12.11,4 13.05,4.38 13.83,5.18C14.61,6 15,6.92 15,8C15,9.11 14.61,10.05 13.83,10.83C13.05,11.61 12.11,12 11,12M18.5,10H20L22,10V12H20V17.5A2.5,2.5 0 0,1 17.5,20A2.5,2.5 0 0,1 15,17.5A2.5,2.5 0 0,1 17.5,15C17.86,15 18.19,15.07 18.5,15.21V10Z"/>
+ICONS["arrow-down-bold"] = `<svg viewBox="0 0 24 24">
+  <path d="M9,4H15V12H19.84L12,19.84L4.16,12H9V4Z"/>
+</svg>`;
+ICONS["filter-variant"] = `<svg viewBox="0 0 24 24">
+  <path d="M6,13H18V11H6M3,6V8H21V6M10,18H14V16H10V18Z"/>
 </svg>`;
 ICONS["volume-off"] = `<svg viewBox="0 0 24 24">
   <path d="M12,4L9.91,6.09L12,8.18M4.27,3L3,4.27L7.73,9H3V15H7L12,20V13.27L16.25,17.53C15.58,18.04 14.83,18.46 14,18.7V20.77C15.38,20.45 16.63,19.82 17.68,18.96L19.73,21L21,19.73L12,10.73M19,12C19,12.94 18.8,13.82 18.46,14.64L19.97,16.15C20.62,14.91 21,13.5 21,12C21,7.72 18,4.14 14,3.23V5.29C16.89,6.15 19,8.83 19,12M16.5,12C16.5,10.23 15.5,8.71 14,7.97V10.18L16.45,12.63C16.5,12.43 16.5,12.21 16.5,12Z"/>
 </svg>`;
-ICONS["keyboard-backspace"] = `<svg viewBox="0 0 24 24">
-  <path d="M21,11H6.83L10.41,7.41L9,6L3,12L9,18L10.41,16.58L6.83,13H21V11Z"/>
-</svg>`;
-ICONS["cancel"] = `<svg viewBox="0 0 24 24">
-  <path d="M12,2A10,10 0 0,1 22,12A10,10 0 0,1 12,22A10,10 0 0,1 2,12A10,10 0 0,1 12,2M12,4A8,8 0 0,0 4,12C4,13.85 4.63,15.55 5.68,16.91L16.91,5.68C15.55,4.63 13.85,4 12,4M12,20A8,8 0 0,0 20,12C20,10.15 19.37,8.45 18.32,7.09L7.09,18.32C8.45,19.37 10.15,20 12,20Z"/>
-</svg>`;
-ICONS["fast-forward"] = `<svg viewBox="0 0 24 24">
-  <path d="M13,6V18L21.5,12M4,18L12.5,12L4,6V18Z"/>
-</svg>`;
-ICONS["delete"] = `<svg viewBox="0 0 24 24">
-  <path d="M19,4H15.5L14.5,3H9.5L8.5,4H5V6H19M6,19A2,2 0 0,0 8,21H16A2,2 0 0,0 18,19V7H6V19Z"/>
-</svg>`;
-ICONS["volume-high"] = `<svg viewBox="0 0 24 24">
-  <path d="M14,3.23V5.29C16.89,6.15 19,8.83 19,12C19,15.17 16.89,17.84 14,18.7V20.77C18,19.86 21,16.28 21,12C21,7.72 18,4.14 14,3.23M16.5,12C16.5,10.23 15.5,8.71 14,7.97V16C15.5,15.29 16.5,13.76 16.5,12M3,9V15H7L12,20V4L7,9H3Z"/>
-</svg>`;
-ICONS["minus"] = `<svg viewBox="0 0 24 24">
-  <path d="M19,13H5V11H19V13Z"/>
-</svg>`;
-ICONS["play"] = `<svg viewBox="0 0 24 24">
-  <path d="M8,5.14V19.14L19,12.14L8,5.14Z"/>
-</svg>`;
-ICONS["magnify"] = `<svg viewBox="0 0 24 24">
-  <path d="M9.5,3A6.5,6.5 0 0,1 16,9.5C16,11.11 15.41,12.59 14.44,13.73L14.71,14H15.5L20.5,19L19,20.5L14,15.5V14.71L13.73,14.44C12.59,15.41 11.11,16 9.5,16A6.5,6.5 0 0,1 3,9.5A6.5,6.5 0 0,1 9.5,3M9.5,5C7,5 5,7 5,9.5C5,12 7,14 9.5,14C12,14 14,12 14,9.5C14,7 12,5 9.5,5Z"/>
-</svg>`;
-ICONS["arrow-down-bold"] = `<svg viewBox="0 0 24 24">
-  <path d="M9,4H15V12H19.84L12,19.84L4.16,12H9V4Z"/>
+ICONS["close"] = `<svg viewBox="0 0 24 24">
+  <path d="M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.41,19L12,13.41L17.59,19L19,17.59L13.41,12L19,6.41Z"/>
 </svg>`;
 ICONS["music"] = `<svg viewBox="0 0 24 24">
   <path d="M21,3V15.5A3.5,3.5 0 0,1 17.5,19A3.5,3.5 0 0,1 14,15.5A3.5,3.5 0 0,1 17.5,12C18.04,12 18.55,12.12 19,12.34V6.47L9,8.6V17.5A3.5,3.5 0 0,1 5.5,21A3.5,3.5 0 0,1 2,17.5A3.5,3.5 0 0,1 5.5,14C6.04,14 6.55,14.12 7,14.34V6L21,3Z"/>
 </svg>`;
-ICONS["rewind"] = `<svg viewBox="0 0 24 24">
-  <path d="M11.5,12L20,18V6M11,18V6L2.5,12L11,18Z"/>
-</svg>`;
-ICONS["album"] = `<svg viewBox="0 0 24 24">
-  <path d="M12,11A1,1 0 0,0 11,12A1,1 0 0,0 12,13A1,1 0 0,0 13,12A1,1 0 0,0 12,11M12,16.5C9.5,16.5 7.5,14.5 7.5,12C7.5,9.5 9.5,7.5 12,7.5C14.5,7.5 16.5,9.5 16.5,12C16.5,14.5 14.5,16.5 12,16.5M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2Z"/>
-</svg>`;
-ICONS["download"] = `<svg viewBox="0 0 24 24">
-  <path d="M5,20H19V18H5M19,9H15V3H9V9H5L12,16L19,9Z"/>
-</svg>`;
-ICONS["account-multiple"] = `<svg viewBox="0 0 24 24">
-  <path d="M16,13C15.71,13 15.38,13 15.03,13.05C16.19,13.89 17,15 17,16.5V19H23V16.5C23,14.17 18.33,13 16,13M8,13C5.67,13 1,14.17 1,16.5V19H15V16.5C15,14.17 10.33,13 8,13M8,11A3,3 0 0,0 11,8A3,3 0 0,0 8,5A3,3 0 0,0 5,8A3,3 0 0,0 8,11M16,11A3,3 0 0,0 19,8A3,3 0 0,0 16,5A3,3 0 0,0 13,8A3,3 0 0,0 16,11Z"/>
-</svg>`;
-ICONS["close"] = `<svg viewBox="0 0 24 24">
-  <path d="M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.41,19L12,13.41L17.59,19L19,17.59L13.41,12L19,6.41Z"/>
-</svg>`;
-ICONS["content-save"] = `<svg viewBox="0 0 24 24">
-  <path d="M15,9H5V5H15M12,19A3,3 0 0,1 9,16A3,3 0 0,1 12,13A3,3 0 0,1 15,16A3,3 0 0,1 12,19M17,3H5C3.89,3 3,3.9 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V7L17,3Z"/>
+ICONS["repeat"] = `<svg viewBox="0 0 24 24">
+  <path d="M17,17H7V14L3,18L7,22V19H19V13H17M7,7H17V10L21,6L17,2V5H5V11H7V7Z"/>
 </svg>`;
 ICONS["arrow-up-bold"] = `<svg viewBox="0 0 24 24">
   <path d="M15,20H9V12H4.16L12,4.16L19.84,12H15V20Z"/>
 </svg>`;
+ICONS["keyboard-backspace"] = `<svg viewBox="0 0 24 24">
+  <path d="M21,11H6.83L10.41,7.41L9,6L3,12L9,18L10.41,16.58L6.83,13H21V11Z"/>
+</svg>`;
+ICONS["play"] = `<svg viewBox="0 0 24 24">
+  <path d="M8,5.14V19.14L19,12.14L8,5.14Z"/>
+</svg>`;
+ICONS["plus"] = `<svg viewBox="0 0 24 24">
+  <path d="M19,13H13V19H11V13H5V11H11V5H13V11H19V13Z"/>
+</svg>`;
+ICONS["content-save"] = `<svg viewBox="0 0 24 24">
+  <path d="M15,9H5V5H15M12,19A3,3 0 0,1 9,16A3,3 0 0,1 12,13A3,3 0 0,1 15,16A3,3 0 0,1 12,19M17,3H5C3.89,3 3,3.9 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V7L17,3Z"/>
+</svg>`;
+ICONS["library-music"] = `<svg viewBox="0 0 24 24">
+  <path d="M4,6H2V20A2,2 0 0,0 4,22H18V20H4M18,7H15V12.5A2.5,2.5 0 0,1 12.5,15A2.5,2.5 0 0,1 10,12.5A2.5,2.5 0 0,1 12.5,10C13.07,10 13.58,10.19 14,10.5V5H18M20,2H8A2,2 0 0,0 6,4V16A2,2 0 0,0 8,18H20A2,2 0 0,0 22,16V4A2,2 0 0,0 20,2Z"/>
+</svg>`;
+ICONS["fast-forward"] = `<svg viewBox="0 0 24 24">
+  <path d="M13,6V18L21.5,12M4,18L12.5,12L4,6V18Z"/>
+</svg>`;
+ICONS["volume-high"] = `<svg viewBox="0 0 24 24">
+  <path d="M14,3.23V5.29C16.89,6.15 19,8.83 19,12C19,15.17 16.89,17.84 14,18.7V20.77C18,19.86 21,16.28 21,12C21,7.72 18,4.14 14,3.23M16.5,12C16.5,10.23 15.5,8.71 14,7.97V16C15.5,15.29 16.5,13.76 16.5,12M3,9V15H7L12,20V4L7,9H3Z"/>
+</svg>`;
 ICONS["chevron-double-right"] = `<svg viewBox="0 0 24 24">
   <path d="M5.59,7.41L7,6L13,12L7,18L5.59,16.59L10.17,12L5.59,7.41M11.59,7.41L13,6L19,12L13,18L11.59,16.59L16.17,12L11.59,7.41Z"/>
 </svg>`;
-ICONS["shuffle"] = `<svg viewBox="0 0 24 24">
-  <path d="M14.83,13.41L13.42,14.82L16.55,17.95L14.5,20H20V14.5L17.96,16.54L14.83,13.41M14.5,4L16.54,6.04L4,18.59L5.41,20L17.96,7.46L20,9.5V4M10.59,9.17L5.41,4L4,5.41L9.17,10.58L10.59,9.17Z"/>
+ICONS["album"] = `<svg viewBox="0 0 24 24">
+  <path d="M12,11A1,1 0 0,0 11,12A1,1 0 0,0 12,13A1,1 0 0,0 13,12A1,1 0 0,0 12,11M12,16.5C9.5,16.5 7.5,14.5 7.5,12C7.5,9.5 9.5,7.5 12,7.5C14.5,7.5 16.5,9.5 16.5,12C16.5,14.5 14.5,16.5 12,16.5M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2Z"/>
 </svg>`;
-ICONS["checkbox-marked-outline"] = `<svg viewBox="0 0 24 24">
-  <path d="M19,19H5V5H15V3H5C3.89,3 3,3.89 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V11H19M7.91,10.08L6.5,11.5L11,16L21,6L19.59,4.58L11,13.17L7.91,10.08Z"/>
-</svg>`;
-ICONS["repeat"] = `<svg viewBox="0 0 24 24">
-  <path d="M17,17H7V14L3,18L7,22V19H19V13H17M7,7H17V10L21,6L17,2V5H5V11H7V7Z"/>
+ICONS["minus_unused"] = `<svg viewBox="0 0 24 24">
+  <path d="M19,13H5V11H19V13Z"/>
 </svg>`;
 export default ICONS;

app/js/item.js

@@ -19,4 +19,8 @@ export default class Item extends HTMLElement {
 	_buildTitle(title) {
 		return html.node("span", {className:"title"}, title, this);
 	}
+
+	matchPrefix(prefix) {
+		return this.textContent.match(/\w+/g).some(word => word.toLowerCase().startsWith(prefix));
+	}
 }

app/js/mpd.js

@@ -1,144 +1,170 @@
 import * as parser from "./parser.js";
 
-let ws, app;
-let commandQueue = [];
-let current;
-let canTerminateIdle = false;
 
-function onError(e) {
-	console.error(e);
-	current && current.reject(e);
-	ws = null; // fixme
-}
+export default class MPD {
+	static async connect() {
+		let response = await fetch("/ticket", {method:"POST"});
+		let ticket = (await response.json()).ticket;
 
-function onClose(e) {
-	console.warn(e);
-	current && current.reject(e);
-	ws = null; // fixme
-}
+		let ws = new WebSocket(createURL(ticket).href);
 
-function onMessage(e) {
-	if (!current) { return; }
-
-	let lines = JSON.parse(e.data);
-	let last = lines.pop();
-	if (last.startsWith("OK")) {
-		current.resolve(lines);
-	} else {
-		console.warn(last);
-		current.reject(last);
+		return new Promise((resolve, reject) => {
+			let mpd;
+			let initialCommand = {resolve: () => resolve(mpd), reject};
+			mpd = new this(ws, initialCommand);
+		});
 	}
-	current = null;
 
-	if (commandQueue.length > 0) {
-		advanceQueue();
-	} else {
-		setTimeout(idle, 0); // only after resolution callbacks
+	constructor(/** @type WebSocket */ ws, initialCommand) {
+		this._ws = ws;
+		this._queue = [];
+		this._current = initialCommand;
+		this._canTerminateIdle = false;
+
+		ws.addEventListener("message", e => this._onMessage(e));
+		ws.addEventListener("close", e => this._onClose(e));
 	}
-}
 
-function advanceQueue(){
-	current = commandQueue.shift();
-	ws.send(current.cmd);
-}
+	onClose(_e) {}
+	onChange(_changed) {}
 
-async function idle() {
-	if (current) { return; }
+	command(cmd) {
+		if (cmd instanceof Array) { cmd = ["command_list_begin", ...cmd, "command_list_end"].join("\n"); }
 
-	canTerminateIdle = true;
-	let lines = await command("idle stored_playlist playlist player options mixer");
-	canTerminateIdle = false;
-	let changed = parser.linesToStruct(lines).changed || [];
-	changed = [].concat(changed);
-	(changed.length > 0) && app.dispatchEvent(new CustomEvent("idle-change", {detail:changed}));
-}
+		return new Promise((resolve, reject) => {
+			this._queue.push({cmd, resolve, reject});
 
-export async function command(cmd) {
-	if (cmd instanceof Array) { cmd = ["command_list_begin", ...cmd, "command_list_end"].join("\n"); }
+			if (!this._current) {
+				this._advanceQueue();
+			} else if (this._canTerminateIdle) {
+				this._ws.send("noidle");
+				this._canTerminateIdle = false;
+			}
+		});
+	}
 
-	return new Promise((resolve, reject) => {
-		commandQueue.push({cmd, resolve, reject});
+	async status() {
+		let lines = await this.command("status");
+		return parser.linesToStruct(lines);
+	}
 
-		if (!current) {
-			advanceQueue();
-		} else if (canTerminateIdle) {
-			ws.send("noidle");
-			canTerminateIdle = false;
+	async currentSong() {
+		let lines = await this.command("currentsong");
+		return parser.linesToStruct(lines);
+	}
+
+	async listQueue() {
+		let lines = await this.command("playlistinfo");
+		return parser.songList(lines);
+	}
+
+	async listPlaylists() {
+		let lines = await this.command("listplaylists");
+		let parsed = parser.linesToStruct(lines);
+
+		let list = parsed["playlist"];
+		if (!list) { return []; }
+		return (list instanceof Array ? list : [list]);
+	}
+
+	async listPath(path) {
+		let lines = await this.command(`lsinfo "${escape(path)}"`);
+		return parser.pathContents(lines);
+	}
+
+	async listTags(tag, filter = {}) {
+		let tokens = ["list", tag];
+		if (Object.keys(filter).length) {
+			tokens.push(serializeFilter(filter));
+
+			let fakeGroup = Object.keys(filter)[0]; // FIXME hack for MPD < 0.21.6
+			tokens.push("group", fakeGroup);
 		}
-	});
-}
-
-export async function status() {
-	let lines = await command("status");
-	return parser.linesToStruct(lines);
-}
-
-export async function currentSong() {
-	let lines = await command("currentsong");
-	return parser.linesToStruct(lines);
-}
-
-export async function listQueue() {
-	let lines = await command("playlistinfo");
-	return parser.songList(lines);
-}
-
-export async function listPlaylists() {
-	let lines = await command("listplaylists");
-	let parsed = parser.linesToStruct(lines);
-
-	let list = parsed["playlist"];
-	if (!list) { return []; }
-	return (list instanceof Array ? list : [list]);
-}
-
-export async function listPath(path) {
-	let lines = await command(`lsinfo "${escape(path)}"`);
-	return parser.pathContents(lines);
-}
-
-export async function listTags(tag, filter = {}) {
-	let tokens = ["list", tag];
-	if (Object.keys(filter).length) {
-		tokens.push(serializeFilter(filter));
-
-		let fakeGroup = Object.keys(filter)[0]; // FIXME hack for MPD < 0.21.6
-		tokens.push("group", fakeGroup);
+		let lines = await this.command(tokens.join(" "));
+		let parsed = parser.linesToStruct(lines);
+		return [].concat(tag in parsed ? parsed[tag] : []);
 	}
-	let lines = await command(tokens.join(" "));
-	let parsed = parser.linesToStruct(lines);
-	return [].concat(tag in parsed ? parsed[tag] : []);
-}
 
-export async function listSongs(filter, window = null) {
-	let tokens = ["find", serializeFilter(filter)];
-	window && tokens.push("window", window.join(":"));
-	let lines = await command(tokens.join(" "));
-	return parser.songList(lines);
-}
-
-export async function searchSongs(filter) {
-	let tokens = ["search", serializeFilter(filter, "contains")];
-	let lines = await command(tokens.join(" "));
-	return parser.songList(lines);
-}
-
-export async function albumArt(songUrl) {
-	let data = [];
-	let offset = 0;
-	let params = ["albumart", `"${escape(songUrl)}"`, offset];
-
-	while (1) {
-		params[2] = offset;
-		try {
-			let lines = await command(params.join(" "));
-			data = data.concat(lines[2]);
-			let metadata = parser.linesToStruct(lines.slice(0, 2));
-			if (data.length >= Number(metadata["size"])) { return data; }
-			offset += Number(metadata["binary"]);
-		} catch (e) { return null; }
+	async listSongs(filter, window = null) {
+		let tokens = ["find", serializeFilter(filter)];
+		window && tokens.push("window", window.join(":"));
+		let lines = await this.command(tokens.join(" "));
+		return parser.songList(lines);
 	}
-	return null;
+
+	async searchSongs(filter) {
+		let tokens = ["search", serializeFilter(filter, "contains")];
+		let lines = await this.command(tokens.join(" "));
+		return parser.songList(lines);
+	}
+
+	async albumArt(songUrl) {
+		let data = [];
+		let offset = 0;
+		let params = ["albumart", `"${escape(songUrl)}"`, offset];
+
+		while (1) {
+			params[2] = offset;
+			try {
+				let lines = await this.command(params.join(" "));
+				data = data.concat(lines[2]);
+				let metadata = parser.linesToStruct(lines.slice(0, 2));
+				if (data.length >= Number(metadata["size"])) { return data; }
+				offset += Number(metadata["binary"]);
+			} catch (e) { return null; }
+		}
+		return null;
+	}
+
+	escape(...args) { return escape(...args); }
+
+	_onMessage(e) {
+		if (!this._current) { return; }
+
+		let lines = JSON.parse(e.data);
+		let last = lines.pop();
+		if (last.startsWith("OK")) {
+			this._current.resolve(lines);
+		} else {
+			console.warn(last);
+			this._current.reject(last);
+		}
+		this._current = null;
+
+		if (this._queue.length > 0) {
+			this._advanceQueue();
+		} else {
+			setTimeout(() => this._idle(), 0); // only after resolution callbacks
+		}
+	}
+
+	_onClose(e) {
+		console.warn(e);
+		this._current && this._current.reject(e);
+		this._ws = null;
+		this.onClose(e);
+	}
+
+	_advanceQueue() {
+		this._current = this._queue.shift();
+		this._ws.send(this._current.cmd);
+	}
+
+	async _idle() {
+		if (this._current) { return; }
+
+		this._canTerminateIdle = true;
+		let lines = await this.command("idle stored_playlist playlist player options mixer");
+		this._canTerminateIdle = false;
+		let changed = parser.linesToStruct(lines).changed || [];
+		changed = [].concat(changed);
+		(changed.length > 0) && this.onChange(changed);
+	}
+}
+
+
+export function escape(str) {
+	return str.replace(/(['"\\])/g, "\\$1");
 }
 
 export function serializeFilter(filter, operator = "==") {
@@ -153,28 +179,10 @@ export function serializeFilter(filter, operator = "==") {
 	return `"${escape(filterStr)}"`;
 }
 
-export function escape(str) {
-	return str.replace(/(['"\\])/g, "\\$1");
-}
-
-export async function init(a) {
-	app = a;
-	let response = await fetch("/ticket", {method:"POST"});
-	let ticket = (await response.json()).ticket;
-
-	return new Promise((resolve, reject) => {
-		current = {resolve, reject};
-
-		try {
-			let url = new URL(location.href);
-			url.protocol = "ws";
-			url.hash = "";
-			url.searchParams.set("ticket", ticket);
-			ws = new WebSocket(url.href);
-		} catch (e) { reject(e); }
-
-		ws.addEventListener("error", onError);
-		ws.addEventListener("message", onMessage);
-		ws.addEventListener("close", onClose);
-	});
+function createURL(ticket) {
+	let url = new URL(location.href);
+	url.protocol = "ws";
+	url.hash = "";
+	url.searchParams.set("ticket", ticket);
+	return url;
 }

index.js

@@ -15,9 +15,9 @@ function searchYoutube(q, limit, response) {
 
 	console.log("YouTube searching", q, limit);
 	q = escape(`ytsearch${limit}:${q}`);
-	const command = `${cmd} -j ${q} | jq "{id,title}" | jq -s .`;
+	const command = `set -o pipefail; ${cmd} -j ${q} | jq "{id,title}" | jq -s .`;
 
-	require("child_process").exec(command, {}, (error, stdout, stderr) => {
+	require("child_process").exec(command, {shell:"bash"}, (error, stdout, stderr) => {
 		if (error) {
 			console.log("error", error);
 			response.writeHead(500);
@@ -36,6 +36,7 @@ function downloadYoutube(id, response) {
 	let args = [
 		"-f", "bestaudio",
 		"-o", `${__dirname}/_youtube/%(title)s-%(id)s.%(ext)s`,
+		"--",
 		id
 	]
 	let child = require("child_process").spawn(cmd, args);
@@ -113,6 +114,7 @@ function onRequest(request, response) {
 }
 
 function requestValidator(request) {
+	if (request.resourceURL.query["server"]) { return false; }
 	let ticket = request.resourceURL.query["ticket"];
 	let index = tickets.indexOf(ticket);
 	if (index > -1) {
@@ -124,5 +126,12 @@ function requestValidator(request) {
 }
 
 let httpServer = require("http").createServer(onRequest).listen(port);
-require("ws2mpd").ws2mpd(httpServer, requestValidator);
+let passwords = {};
+try {
+	passwords = require("./passwords.json");
+	console.log("loaded passwords.json file");
+} catch (e) {
+	console.log("no passwords.json found");
+}
+require("ws2mpd").ws2mpd(httpServer, requestValidator, passwords);
 require("ws2mpd").logging(false);

package.json

@@ -6,7 +6,7 @@
   "dependencies": {
     "custom-range": "^1.1.0",
     "node-static": "^0.7.11",
-    "ws2mpd": "^2.2.1"
+    "ws2mpd": "git+https://git.jerryxiao.com/Jerry/ws2mpd.git#b223edc357"
   },
   "devDependencies": {
     "less": "^3.9.0",