import * as html from "../html.js"; import Component from "../component.js"; import Song from "./song.js"; import { escape } from "../mpd.js"; function generateMoveCommands(items, diff, all) { const COMPARE = (a, b) => all.indexOf(a) - all.indexOf(b); return items.sort(COMPARE) .map(item => { let index = all.indexOf(item) + diff; if (index < 0 || index >= all.length) { return null; } // this does not move return `moveid ${item.songId} ${index}`; }) .filter(command => command); } class Queue extends Component { constructor() { super({selection:"multi"}); this._currentId = null; this._initCommands(); } handleEvent(e) { switch (e.type) { case "song-change": this._currentId = e.detail["Id"]; this._updateCurrent(); break; case "queue-change": this._sync(); break; } } _onAppLoad() { this._app.addEventListener("song-change", this); this._app.addEventListener("queue-change", this); this._sync(); } _onComponentChange(c, isThis) { this.hidden = !isThis; isThis && this._sync(); } async _sync() { let songs = await this._mpd.listQueue(); this._buildSongs(songs); let e = new CustomEvent("queue-length-change", {detail:songs.length}); this._app.dispatchEvent(e); } _updateCurrent() { Array.from(this.children).forEach(/** @param {Song} node */ node => { node.playing = (node.songId == this._currentId); }); } _buildSongs(songs) { html.clear(this); this.selection.clear(); songs.forEach(song => { const node = new Song(song); this.appendChild(node); node.addButton("play", async _ => { await this._mpd.command(`playid ${node.songId}`); }); }); this._updateCurrent(); } _initCommands() { const sel = this.selection; sel.addCommandAll(); sel.addCommand(async items => { const commands = generateMoveCommands(items, -1, Array.from(this.children)); await this._mpd.command(commands); this._sync(); }, {label:"Up", icon:"arrow-up-bold"}); sel.addCommand(async items => { const commands = generateMoveCommands(items, +1, Array.from(this.children)); await this._mpd.command(commands.reverse()); // move last first this._sync(); }, {label:"Down", icon:"arrow-down-bold"}); sel.addCommand(async items => { let name = prompt("Save selected songs as a playlist?", "name"); if (name === null) { return; } name = escape(name); const commands = items.map(item => { return `playlistadd "${name}" "${escape(item.file)}"`; }); await this._mpd.command(commands); // FIXME notify? }, {label:"Save", icon:"content-save"}); sel.addCommand(async items => { if (!confirm(`Remove these ${items.length} songs from the queue?`)) { return; } const commands = items.map(item => `deleteid ${item.songId}`); await this._mpd.command(commands); this._sync(); }, {label:"Remove", icon:"delete"}); sel.addCommandCancel(); } } customElements.define("cyp-queue", Queue);