import * as art from "../art.js"; import * as html from "../html.js"; import * as format from "../format.js"; import Component from "../component.js"; const ELAPSED_PERIOD = 500; class Player extends Component { constructor() { super(); this._current = { song: {}, elapsed: 0, at: 0, volume: 0 }; this._toggleVolume = 0; const DOM = {}; const all = this.querySelectorAll("[class]"); [...all].forEach(node => DOM[node.className] = node); DOM.progress = DOM.timeline.querySelector("x-range"); DOM.volume = DOM.volume.querySelector("x-range"); this._dom = DOM; } handleEvent(e) { switch (e.type) { case "idle-change": let hasOptions = e.detail.includes("options"); let hasPlayer = e.detail.includes("player"); (hasOptions || hasPlayer) && this._updateStatus(); hasPlayer && this._updateCurrent(); break; } } _onAppLoad() { this._addEvents(); this._updateStatus(); this._updateCurrent(); this._app.addEventListener("idle-change", this); setInterval(() => this._updateElapsed(), ELAPSED_PERIOD); } async _updateStatus() { const data = await this._mpd.status(); this._updateFlags(data); this._updateVolume(data); // rebase the time sync this._current.elapsed = Number(data["elapsed"] || 0); this._current.at = performance.now(); } async _updateCurrent() { const data = await this._mpd.currentSong(); const DOM = this._dom; if (data["file"] != this._current.song["file"]) { // changed song if (data["file"]) { // is there a song at all? DOM.title.textContent = data["Title"] || format.fileName(data["file"]); DOM.subtitle.textContent = format.subtitle(data, {duration:false}); let duration = Number(data["duration"]); DOM.duration.textContent = format.time(duration); DOM.progress.max = duration; DOM.progress.disabled = false; } else { DOM.title.textContent = ""; DOM.subtitle.textContent = ""; DOM.progress.value = 0; DOM.progress.disabled = true; } this._dispatchSongChange(data); } let artistNew = data["AlbumArtist"] || data["Artist"]; let artistOld = this._current.song["AlbumArtist"] || this._current.song["Artist"]; let albumNew = data["Album"]; let albumOld = this._current.song["Album"]; Object.assign(this._current.song, data); if (artistNew != artistOld || albumNew != albumOld) { // changed album (art) html.clear(DOM.art); let src = await art.get(this._mpd, artistNew, data["Album"], data["file"]); if (src) { html.node("img", {src}, "", DOM.art); } else { html.icon("music", DOM.art); } } } _updateElapsed() { const DOM = this._dom; let elapsed = 0; if (this._current.song["file"]) { elapsed = this._current.elapsed; if (this.dataset.state == "play") { elapsed += (performance.now() - this._current.at)/1000; } } DOM.progress.value = elapsed; DOM.elapsed.textContent = format.time(elapsed); this._app.style.setProperty("--progress", DOM.progress.value/DOM.progress.max); } _updateFlags(data) { let flags = []; if (data["random"] == "1") { flags.push("random"); } if (data["repeat"] == "1") { flags.push("repeat"); } if (data["volume"] === "0") { flags.push("mute"); } // strict, because volume might be missing this.dataset.flags = flags.join(" "); this.dataset.state = data["state"]; } _updateVolume(data) { const DOM = this._dom; if ("volume" in data) { let volume = Number(data["volume"]); DOM.mute.disabled = false; DOM.volume.disabled = false; DOM.volume.value = volume; if (volume == 0 && this._current.volume > 0) { this._toggleVolume = this._current.volume; } // muted if (volume > 0 && this._current.volume == 0) { this._toggleVolume = 0; } // restored this._current.volume = volume; } else { DOM.mute.disabled = true; DOM.volume.disabled = true; DOM.volume.value = 50; } } _addEvents() { const DOM = this._dom; DOM.play.addEventListener("click", _ => this._app.mpd.command("play")); DOM.pause.addEventListener("click", _ => this._app.mpd.command("pause 1")); DOM.prev.addEventListener("click", _ => this._app.mpd.command("previous")); DOM.next.addEventListener("click", _ => this._app.mpd.command("next")); DOM.random.addEventListener("click", _ => { let isRandom = this.dataset.flags.split(" ").includes("random"); this._app.mpd.command(`random ${isRandom ? "0" : "1"}`); }); DOM.repeat.addEventListener("click", _ => { let isRepeat = this.dataset.flags.split(" ").includes("repeat"); this._app.mpd.command(`repeat ${isRepeat ? "0" : "1"}`); }); DOM.progress.addEventListener("input", e => { let elapsed = e.target.valueAsNumber; this._current.elapsed = elapsed; this._current.at = performance.now(); this._app.mpd.command(`seekcur ${elapsed}`); }); DOM.volume.addEventListener("input", e => this._app.mpd.command(`setvol ${e.target.valueAsNumber}`)); DOM.mute.addEventListener("click", async _ => { let data = await this._app.mpd.commandAndStatus(`setvol ${this._toggleVolume}`); this._updateFlags(data); this._updateVolume(data); }); } _dispatchSongChange(detail) { const e = new CustomEvent("song-change", {detail}); this._app.dispatchEvent(e); } } customElements.define("cyp-player", Player);