art
This commit is contained in:
Ondrej Zara
parent
860ad33a70
commit
17b5040766
13 changed files with 195 additions and 11 deletions
7
app/Makefile
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7
app/Makefile
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@ -0,0 +1,7 @@
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LESS := $(shell npm bin)/lessc
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APP := app.css
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all: $(APP)
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$(APP): css/*
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$(LESS) css/app.less > $@
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29
app/app.css
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29
app/app.css
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@ -0,0 +1,29 @@
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body {
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margin: 0;
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display: flex;
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flex-direction: column;
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height: 100vh;
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}
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header nav ul {
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margin: 0;
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padding: 0;
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list-style: none;
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display: flex;
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flex-direction: row;
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}
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header nav ul li {
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text-align: center;
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flex-grow: 1;
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line-height: 40px;
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}
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header nav ul li:hover {
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background-color: red;
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}
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main {
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flex-grow: 1;
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overflow-x: hidden;
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overflow-y: auto;
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}
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footer {
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flex-basis: 40px;
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}
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10
app/css/app.less
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10
app/css/app.less
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@ -0,0 +1,10 @@
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body {
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margin: 0;
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display: flex;
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flex-direction: column;
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height: 100vh;
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}
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@import "header.less";
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@import "main.less";
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@import "footer.less";
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3
app/css/footer.less
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3
app/css/footer.less
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@ -0,0 +1,3 @@
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footer {
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flex-basis: 40px;
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}
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17
app/css/header.less
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17
app/css/header.less
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@ -0,0 +1,17 @@
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header {
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nav ul {
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margin: 0;
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padding: 0;
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list-style: none;
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display: flex;
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flex-direction: row;
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li {
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text-align: center;
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flex-grow: 1;
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line-height: 40px;
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&:hover { background-color:red;}
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}
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}
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}
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5
app/css/main.less
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5
app/css/main.less
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@ -0,0 +1,5 @@
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main {
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flex-grow: 1;
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overflow-x: hidden;
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overflow-y: auto;
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}
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@ -1,4 +1,48 @@
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<!doctype html>
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<html>
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width" />
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<title>Control Your Player</title>
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<link rel="stylesheet" href="app.css" />
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</head>
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<body>
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<header>
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<nav>
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<ul>
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<li>Q</li>
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<li>Playlists</li>
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<li>Library</li>
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<li>Misc</li>
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</ul>
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</nav>
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</header>
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<main>
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main<br/>
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main<br/>
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main<br/>
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main<br/>
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main<br/>
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main<br/>
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main<br/>
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main<br/>
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main<br/>
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main<br/>
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main<br/>
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</main>
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<footer>
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<span class="art"></span>
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<span class="title"></span>
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<span class="artist"></span>
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<span class="album"></span>
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<span class="time1"></span>/<span class="time2"></span>
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<button class="status"></button>
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<button class="stop"></button>
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<button class="prev"></button>
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<button class="next"></button>
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<button class="repeat"></button>
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<button class="random"></button>
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</footer>
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<script type="module" src="js/app.js"></script>
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</body>
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</html>
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@ -1,10 +1,16 @@
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import * as mpd from "./mpd.js";
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import * as status from "./status.js";
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import * as art from "./art.js";
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async function init() {
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await mpd.init();
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status.init();
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window.mpd = mpd;
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art.get("NAS/ABBA/Greatest Hits/01 Dancing Queen.mp3").then(src => {
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let image = document.createElement("img");
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image.src = src;
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document.querySelector("main").appendChild(image);
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});
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}
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init();
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51
app/js/art.js
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51
app/js/art.js
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@ -0,0 +1,51 @@
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import * as mpd from "./mpd.js";
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import * as parser from "./parser.js";
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let cache = {};
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const SIZE = 64;
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async function getImageData(songUrl) {
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let data = [];
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let offset = 0;
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while (1) {
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let params = ["albumart", `"${mpd.escape(songUrl)}"`, offset];
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let lines = await mpd.command(params.join(" "));
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if (lines.length == 1) { return null; }
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data = data.concat(lines[2]);
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let metadata = parser.linesToStruct(lines.slice(0, 2));
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if (data.length >= Number(metadata["size"])) { return data; }
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offset += Number(metadata["binary"]);
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}
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}
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async function bytesToImage(bytes) {
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let blob = new Blob([bytes]);
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let image = document.createElement("img");
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image.src = URL.createObjectURL(blob);
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return new Promise(resolve => {
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image.onload = () => resolve(image);
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});
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}
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async function resize(image) {
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let canvas = document.createElement("canvas");
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canvas.width = SIZE;
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canvas.height = SIZE;
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let ctx = canvas.getContext("2d");
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ctx.drawImage(image, 0, 0, SIZE, SIZE);
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return new Promise(resolve => canvas.toBlob(resolve));
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}
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export async function get(songUrl) {
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if (songUrl in cache) { return cache[songUrl]; }
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let data = await getImageData(songUrl);
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let bytes = new Uint8Array(data);
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let image = await bytesToImage(bytes);
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let blob = await resize(image);
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let url = URL.createObjectURL(blob);
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cache[songUrl] = url;
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return url;
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}
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@ -24,27 +24,33 @@ function onClose(e) {
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function processQueue() {
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if (pendingResolve || commandQueue.length == 0) { return; }
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let cmd = commandQueue.shift();
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let {cmd, resolve} = commandQueue.shift();
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pendingResolve = resolve;
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if (cmd instanceof Array) { cmd = ["command_list_begin", ...cmd, "command_list_end"].join("\n"); }
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ws.send(cmd);
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}
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export async function command(cmd) {
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commandQueue.push(cmd);
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processQueue();
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export function escape(str) {
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return str.replace(/(['"\\])/g, "\\$1");
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}
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return new Promise(resolve => pendingResolve = resolve);
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export async function command(cmd) {
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return new Promise(resolve => {
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commandQueue.push({cmd, resolve});
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processQueue();
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});
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}
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export async function getStatus() {
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let lines = await command(["status", "currentsong"]);
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lines.pop(); // "OK"
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return parser.linesToStruct(lines);
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}
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export async function init() {
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return new Promise((resolve, reject) => {
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try {
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ws = new WebSocket("ws://localhost:8080?server=0:6600");
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ws = new WebSocket("ws://localhost:8080?server=raspberrypi.local");
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} catch (e) { reject(e); }
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pendingResolve = resolve;
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export function linesToStruct(lines) {
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lines.pop(); // "OK"
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let result = {};
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lines.forEach(line => {
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let cindex = line.indexOf(":");
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import * as mpd from "./mpd.js";
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const DELAY = 2000;
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const DOM = {};
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async function tick() {
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let data = await mpd.getStatus();
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console.log(data);
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DOM.title.textContent = data["Title"];
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// console.log(data);
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setTimeout(tick, DELAY);
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}
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export function init() {
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let node = document.querySelector("footer");
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DOM.title = node.querySelector(".title");
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tick();
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}
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"node-static": "^0.7.11",
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"ws2mpd": "^1.0.0"
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},
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"devDependencies": {},
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"devDependencies": {
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"less": "^3.9.0"
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},
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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