124 lines
3.0 KiB
JavaScript
124 lines
3.0 KiB
JavaScript
const dbus = require('dbus-next');
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const { info } = require('./render');
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const playerName = process.env.BOUNCY_MUSICPLAYER || 'org.mpris.MediaPlayer2.rhythmbox';
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const MPRIS_IFACE = 'org.mpris.MediaPlayer2.Player';
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const MPRIS_PATH = '/org/mpris/MediaPlayer2';
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const PROPERTIES_IFACE = 'org.freedesktop.DBus.Properties';
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let artist = '';
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let title = '';
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let album = '';
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let songStart; // timestamps
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let songEnd;
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let songPauseSpot;
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let songPaused;
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let infoFunc;
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let warningFunc;
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let errorFunc;
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let lastStatus = '';
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async function updateMetadata(metadata, props) {
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try {
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let artistVariant = metadata.value['xesam:artist'];
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let titleVariant = metadata.value['xesam:title'];
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artist = artistVariant ? artistVariant.value[0] : 'unknown';
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title = titleVariant ? titleVariant.value : 'unknown';
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let durationVariant = metadata.value['mpris:length'];
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let duration = durationVariant ? durationVariant.value : 0n;
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let position = (await props.Get(MPRIS_IFACE, 'Position')).value;
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songStart = Date.now() - Number(position / 1000n);
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songEnd = songStart + Number(duration / 1000n);
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if (metadata.value['xesam:album'] && metadata.value['xesam:album'] !== 'Unknown') {
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album = metadata.value['xesam:album'].value;
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} else {
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album = null;
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}
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songPaused = (await props.Get(MPRIS_IFACE, 'PlaybackStatus')).value === 'Paused';
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if (songPaused) songPauseSpot = Date.now();
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} catch(err) {
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errorFunc(err.message);
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}
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}
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async function setupProps(props) {
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let metadata = await props.Get(MPRIS_IFACE, 'Metadata');
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updateMetadata(metadata, props);
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props.on('PropertiesChanged', (iface, changed) => {
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if (changed.hasOwnProperty('PlaybackStatus')) {
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let status = changed['PlaybackStatus'];
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if (lastStatus !== status.value) {
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lastStatus = status.value;
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info(status.value);
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updateMetadata(metadata, props);
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}
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}
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if (changed.hasOwnProperty('Metadata')) {
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metadata = changed['Metadata'];
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updateMetadata(metadata, props);
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}
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});
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}
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async function setup() {
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try {
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let bus = dbus.sessionBus();
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let obj = await bus.getProxyObject(playerName, MPRIS_PATH);
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let props = obj.getInterface(PROPERTIES_IFACE);
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setupProps(props);
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infoFunc('connected to mpris')
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} catch(err) {
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errorFunc(err.message);
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setTimeout(setup, 5000);
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}
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}
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function init(e, w, i) {
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errorFunc = e;
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warningFunc = w;
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infoFunc = i;
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setup();
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}
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function getArtist() {
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return artist;
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}
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function getTitle() {
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return title;
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}
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function getAlbum() {
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return album;
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}
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function getSongStart() {
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return songStart;
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}
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function getSongEnd() {
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return songEnd;
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}
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function getSongPauseSpot() {
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return songPauseSpot;
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}
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function getSongPaused() {
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return songPaused;
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}
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module.exports.init = init;
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module.exports.getArtist = getArtist;
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module.exports.getTitle = getTitle;
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module.exports.getAlbum = getAlbum;
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module.exports.getSongStart = getSongStart;
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module.exports.getSongEnd = getSongEnd;
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module.exports.getSongPauseSpot = getSongPauseSpot;
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module.exports.getSongPaused = getSongPaused; |