audrey/src/ui/window.vala

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Vala
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[GtkTemplate (ui = "/eu/callcc/audrey/ui/window.ui")]
class Ui.Window : Adw.ApplicationWindow {
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[GtkChild] private unowned Gtk.ListBox sidebar;
[GtkChild] private unowned Gtk.ListBoxRow sidebar_play_queue;
[GtkChild] private unowned Gtk.Stack stack;
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[GtkChild] public unowned Ui.PlayQueue play_queue;
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[GtkChild] public unowned Adw.ButtonRow shuffle_all_tracks;
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private Setup setup;
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public bool playing { get; private set; default = false; }
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public int64 position { get; private set; }
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public double volume {
get { return this.playbin.volume; }
set { this.playbin.volume = value; }
}
public bool mute {
get { return this.playbin.mute; }
set { this.playbin.mute = value; }
}
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public Song? song { get; set; default = null; }
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private Cancellable cancel_loading_art;
public bool cover_art_loading { get; set; default = false; }
public Gdk.Paintable playing_cover_art { get; set; }
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internal Playbin playbin { get; default = new Playbin (); }
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public Window (Gtk.Application app) {
Object (application: app);
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var provider = new Gtk.CssProvider ();
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provider.load_from_resource("/eu/callcc/audrey/audrey.css");
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Gtk.StyleContext.add_provider_for_display (Gdk.Display.get_default (), provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
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this.close_request.connect (() => {
app.quit ();
return false;
});
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}
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construct {
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Bus.own_name (
BusType.SESSION,
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"org.mpris.MediaPlayer2.audrey",
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BusNameOwnerFlags.NONE,
(conn) => {
try {
// TODO: mpris
} catch (IOError e) {
error ("could not register dbus service: %s", e.message);
}
},
() => {},
() => { error ("could not acquire dbus name"); });
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this.setup = new Setup ();
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this.setup.connected.connect ((api) => {
public_api = api;
this.shuffle_all_tracks.sensitive = true;
this.shuffle_all_tracks.activated.connect (() => {
this.shuffle_all_tracks.sensitive = false;
this.play_queue.clear ();
api.get_random_songs.begin (null, (song) => {
this.play_queue.queue (song);
}, (obj, res) => {
try {
api.get_random_songs.end (res);
} catch (Error e) {
error ("could not get random songs: %s", e.message);
}
this.shuffle_all_tracks.sensitive = true;
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this.play_queue.restart ();
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});
});
playbin.stream_started.connect (this.play_queue.on_stream_start);
this.play_queue.now_playing.connect ((song) => {
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this.playing = true;
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this.song = song;
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api.scrobble.begin (song.id);
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});
this.play_queue.play_now.connect ((song) => {
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playbin.play_now (api.stream_uri (song.id));
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});
this.play_queue.play_next.connect ((song) => {
if (song == null) {
playbin.set_next_uri (null);
} else {
playbin.set_next_uri (api.stream_uri (song.id));
}
});
});
this.setup.load ();
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this.sidebar.select_row (this.sidebar.get_row_at_index (0));
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this.notify["song"].connect (() => {
if (this.cancel_loading_art != null) {
this.cancel_loading_art.cancel ();
}
this.cancel_loading_art = new Cancellable ();
this.playing_cover_art = Gdk.Paintable.empty (100, 100);
if (this.song != null) {
this.cover_art_loading = true;
string song_id = this.song.id;
public_api.cover_art.begin (song_id, 100, this.cancel_loading_art, (obj, res) => {
try {
this.playing_cover_art = Gdk.Texture.for_pixbuf (public_api.cover_art.end (res));
this.cover_art_loading = false;
} catch (Error e) {
if (!(e is IOError.CANCELLED)) {
warning ("could not load cover for %s: %s", song_id, e.message);
this.cover_art_loading = false;
}
}
});
}
});
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this.song = null;
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this.playbin.notify["position"].connect (() => {
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// only set if we aren't seeking
if (this.seek_timeout_id == 0) {
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this.position = this.playbin.position;
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}
});
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}
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[GtkCallback] private void on_sidebar_row_activated (Gtk.ListBoxRow row) {
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if (row == this.sidebar_play_queue) {
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this.stack.set_visible_child_name("play_queue");
}
}
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[GtkCallback] private string format_timestamp (int64 ns) {
int64 ms = ns / 1000000;
int s = (int) (ms / 1000);
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return "%02d:%02d".printf (s/60, s%60);
}
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// same timeout logic as https://code.videolan.org/videolan/npapi-vlc/blob/6eae0ffb9cbaf8f6e04423de2ff38daabdf7cae3/npapi/vlcplugin_gtk.cpp#L312
private uint seek_timeout_id = 0;
[GtkCallback] private bool on_play_position_seek (Gtk.Range range, Gtk.ScrollType scroll_type, double value) {
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this.position = (int64) range.adjustment.value;
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if (this.seek_timeout_id == 0) {
this.seek_timeout_id = Timeout.add (500, () => {
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playbin.seek((int64) range.adjustment.value);
this.seek_timeout_id = 0;
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return false;
});
}
return false;
}
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[GtkCallback] private void on_play_pause_clicked () {
if (this.playing) {
this.playbin.pause();
this.playing = false;
} else {
this.playbin.play();
this.playing = true;
}
}
[GtkCallback] private string play_button_icon_name (bool playing) {
return playing ? "media-playback-pause" : "media-playback-start";
}
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[GtkCallback] private string mute_button_icon_name (bool mute) {
return mute ? "audio-volume-muted" : "audio-volume-high";
}
[GtkCallback] private void on_mute_toggle () {
this.mute = !this.mute;
}
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[GtkCallback] private void on_skip_forward_clicked () {
this.play_queue.skip_forward ();
}
[GtkCallback] private void on_skip_backward_clicked () {
this.play_queue.skip_backward ();
}
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[GtkCallback] private void show_setup_dialog () {
this.setup.present (this);
}
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[GtkCallback] private string format_song_below_title (Song? song) {
return song == null ? "" : @"$(song.artist) - $(song.album) - $(song.year)";
}
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[GtkCallback] private void seek_backward () {
// 10 seconds
int64 new_position = position - (int64)10 * 1000 * 1000000;
if (new_position < 0) new_position = 0;
this.position = new_position;
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this.playbin.seek (new_position);
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}
[GtkCallback] private void seek_forward () {
// 10 seconds
int64 new_position = position + (int64)10 * 1000 * 1000000;
if (new_position > this.playbin.duration) new_position = this.playbin.duration;
this.position = new_position;
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this.playbin.seek (new_position);
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}
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}