gnome-shell/js/ui/mpris.js

286 lines
8.4 KiB
JavaScript
Raw Normal View History

const Gio = imports.gi.Gio;
const Lang = imports.lang;
const Signals = imports.signals;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
const Calendar = imports.ui.calendar;
const Main = imports.ui.main;
const MessageList = imports.ui.messageList;
const DBusIface = '<node> \
<interface name="org.freedesktop.DBus"> \
<method name="ListNames"> \
<arg type="as" direction="out" name="names" /> \
</method> \
<signal name="NameOwnerChanged"> \
<arg type="s" direction="out" name="name" /> \
<arg type="s" direction="out" name="oldOwner" /> \
<arg type="s" direction="out" name="newOwner" /> \
</signal> \
</interface> \
</node>';
const DBusProxy = Gio.DBusProxy.makeProxyWrapper(DBusIface);
const MprisIface = '<node> \
<interface name="org.mpris.MediaPlayer2"> \
<method name="Raise" /> \
<property name="CanRaise" type="b" access="read" /> \
<property name="DesktopEntry" type="s" access="read" /> \
</interface> \
</node>';
const MprisProxy = Gio.DBusProxy.makeProxyWrapper(MprisIface);
const MprisPlayerIface = '<node> \
<interface name="org.mpris.MediaPlayer2.Player"> \
<method name="PlayPause" /> \
<method name="Next" /> \
<method name="Previous" /> \
<property name="CanGoNext" type="b" access="read" /> \
<property name="CanGoPrevious" type="b" access="read" /> \
<property name="CanPlay" type="b" access="read" /> \
<property name="Metadata" type="a{sv}" access="read" /> \
<property name="PlaybackStatus" type="s" access="read" /> \
</interface> \
</node>';
const MprisPlayerProxy = Gio.DBusProxy.makeProxyWrapper(MprisPlayerIface);
const MPRIS_PLAYER_PREFIX = 'org.mpris.MediaPlayer2.';
var MediaMessage = new Lang.Class({
Name: 'MediaMessage',
Extends: MessageList.Message,
_init(player) {
this._player = player;
this.parent('', '');
this._icon = new St.Icon({ style_class: 'media-message-cover-icon' });
this.setIcon(this._icon);
this._prevButton = this.addMediaControl('media-skip-backward-symbolic',
() => {
this._player.previous();
});
this._playPauseButton = this.addMediaControl(null,
() => {
this._player.playPause();
});
this._nextButton = this.addMediaControl('media-skip-forward-symbolic',
() => {
this._player.next();
});
this._player.connect('changed', this._update.bind(this));
this._player.connect('closed', this.close.bind(this));
this._update();
},
_onClicked() {
this._player.raise();
Main.panel.closeCalendar();
},
_updateNavButton(button, sensitive) {
button.reactive = sensitive;
},
_update() {
this.setTitle(this._player.trackArtists.join(', '));
this.setBody(this._player.trackTitle);
if (this._player.trackCoverUrl) {
let file = Gio.File.new_for_uri(this._player.trackCoverUrl);
this._icon.gicon = new Gio.FileIcon({ file: file });
this._icon.remove_style_class_name('fallback');
} else {
this._icon.icon_name = 'audio-x-generic-symbolic';
this._icon.add_style_class_name('fallback');
}
let isPlaying = this._player.status == 'Playing';
let iconName = isPlaying ? 'media-playback-pause-symbolic'
: 'media-playback-start-symbolic';
this._playPauseButton.child.icon_name = iconName;
this._updateNavButton(this._prevButton, this._player.canGoPrevious);
this._updateNavButton(this._nextButton, this._player.canGoNext);
}
});
var MprisPlayer = new Lang.Class({
Name: 'MprisPlayer',
_init(busName) {
this._mprisProxy = new MprisProxy(Gio.DBus.session, busName,
'/org/mpris/MediaPlayer2',
this._onMprisProxyReady.bind(this));
this._playerProxy = new MprisPlayerProxy(Gio.DBus.session, busName,
'/org/mpris/MediaPlayer2',
this._onPlayerProxyReady.bind(this));
this._visible = false;
this._trackArtists = [];
this._trackTitle = '';
this._trackCoverUrl = '';
},
get status() {
return this._playerProxy.PlaybackStatus;
},
get trackArtists() {
return this._trackArtists;
},
get trackTitle() {
return this._trackTitle;
},
get trackCoverUrl() {
return this._trackCoverUrl;
},
playPause() {
this._playerProxy.PlayPauseRemote();
},
get canGoNext() {
return this._playerProxy.CanGoNext;
},
next() {
this._playerProxy.NextRemote();
},
get canGoPrevious() {
return this._playerProxy.CanGoPrevious;
},
previous() {
this._playerProxy.PreviousRemote();
},
raise() {
// The remote Raise() method may run into focus stealing prevention,
// so prefer activating the app via .desktop file if possible
let app = null;
if (this._mprisProxy.DesktopEntry) {
let desktopId = this._mprisProxy.DesktopEntry + '.desktop';
app = Shell.AppSystem.get_default().lookup_app(desktopId);
}
if (app)
app.activate();
else if (this._mprisProxy.CanRaise)
this._mprisProxy.RaiseRemote();
},
_close() {
this._mprisProxy.disconnect(this._ownerNotifyId);
this._mprisProxy = null;
this._playerProxy.disconnect(this._propsChangedId);
this._playerProxy = null;
this.emit('closed');
},
_onMprisProxyReady() {
this._ownerNotifyId = this._mprisProxy.connect('notify::g-name-owner',
() => {
if (!this._mprisProxy.g_name_owner)
this._close();
});
},
_onPlayerProxyReady() {
this._propsChangedId = this._playerProxy.connect('g-properties-changed',
this._updateState.bind(this));
this._updateState();
},
_updateState() {
let metadata = {};
for (let prop in this._playerProxy.Metadata)
metadata[prop] = this._playerProxy.Metadata[prop].deep_unpack();
this._trackArtists = metadata['xesam:artist'] || [_("Unknown artist")];
this._trackTitle = metadata['xesam:title'] || _("Unknown title");
this._trackCoverUrl = metadata['mpris:artUrl'] || '';
this.emit('changed');
let visible = this._playerProxy.CanPlay;
if (this._visible != visible) {
this._visible = visible;
if (visible)
this.emit('show');
else
this._close();
}
}
});
Signals.addSignalMethods(MprisPlayer.prototype);
var MediaSection = new Lang.Class({
Name: 'MediaSection',
Extends: MessageList.MessageListSection,
_init() {
this.parent();
this._players = new Map();
this._proxy = new DBusProxy(Gio.DBus.session,
'org.freedesktop.DBus',
'/org/freedesktop/DBus',
this._onProxyReady.bind(this));
},
_shouldShow() {
return !this.empty && Calendar.isToday(this._date);
},
_addPlayer(busName) {
if (this._players.get(busName))
return;
let player = new MprisPlayer(busName);
player.connect('closed',
() => {
this._players.delete(busName);
});
player.connect('show',
() => {
let message = new MediaMessage(player);
this.addMessage(message, true);
});
this._players.set(busName, player);
},
_onProxyReady() {
this._proxy.ListNamesRemote(([names]) => {
names.forEach(name => {
if (!name.startsWith(MPRIS_PLAYER_PREFIX))
return;
this._addPlayer(name);
});
});
this._proxy.connectSignal('NameOwnerChanged',
this._onNameOwnerChanged.bind(this));
},
_onNameOwnerChanged(proxy, sender, [name, oldOwner, newOwner]) {
if (!name.startsWith(MPRIS_PLAYER_PREFIX))
return;
if (newOwner && !oldOwner)
this._addPlayer(name);
}
});