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|
/*
* Copyright 2013 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Lars Uebernickel <lars.uebernickel@canonical.com>
*/
public class IndicatorSound.Service: Object {
DBusConnection bus;
/**
* A copy of volume_control.volume made before just warn_notification
* is shown. Since the volume is clamped during the warning, we cache
* the previous volume to use iff the user hits "OK".
*/
VolumeControl.Volume _pre_warn_volume = null;
public Service (MediaPlayerList playerlist, VolumeControl volume, AccountsServiceUser? accounts) {
try {
bus = Bus.get_sync(GLib.BusType.SESSION);
} catch (GLib.Error e) {
error("Unable to get DBus session bus: %s", e.message);
}
info_notification = new Notify.Notification(_("Volume"), "", "audio-volume-muted");
warn_notification = new Notify.Notification(_("Volume"), _("High volume can damage your hearing."), "audio-volume-high");
warn_notification.set_hint ("x-canonical-non-shaped-icon", "true");
warn_notification.set_hint ("x-canonical-snap-decisions", "true");
warn_notification.set_hint ("x-canonical-private-affirmative-tint", "true");
warn_notification.closed.connect((n) => { n.clear_actions(); });
BusWatcher.watch_namespace (GLib.BusType.SESSION,
"org.freedesktop.Notifications",
() => { debug("Notifications name appeared"); notify_server_caps_checked = false; },
() => { debug("Notifications name vanshed"); notify_server_caps_checked = false; });
this.settings = new Settings ("com.canonical.indicator.sound");
this.settings.bind ("visible", this, "visible", SettingsBindFlags.GET);
this.notify["visible"].connect ( () => this.update_root_icon () );
this.volume_control = volume;
this.accounts_service = accounts;
/* If we're on the greeter, don't export */
if (this.accounts_service != null) {
this.accounts_service.notify["showDataOnGreeter"].connect(() => {
this.export_to_accounts_service = this.accounts_service.showDataOnGreeter;
eventually_update_player_actions();
});
this.export_to_accounts_service = this.accounts_service.showDataOnGreeter;
}
this.players = playerlist;
this.players.player_added.connect (this.player_added);
this.players.player_removed.connect (this.player_removed);
this.actions = new SimpleActionGroup ();
this.actions.add_action_entries (action_entries, this);
this.actions.add_action (this.create_silent_mode_action ());
this.actions.add_action (this.create_mute_action ());
this.actions.add_action (this.create_volume_action ());
this.actions.add_action (this.create_mic_volume_action ());
this.actions.add_action (this.create_high_volume_action ());
this.menus = new HashTable<string, SoundMenu> (str_hash, str_equal);
this.menus.insert ("desktop_greeter", new SoundMenu (null, SoundMenu.DisplayFlags.SHOW_MUTE | SoundMenu.DisplayFlags.HIDE_PLAYERS | SoundMenu.DisplayFlags.GREETER_PLAYERS));
this.menus.insert ("phone_greeter", new SoundMenu (null, SoundMenu.DisplayFlags.SHOW_SILENT_MODE | SoundMenu.DisplayFlags.HIDE_INACTIVE_PLAYERS | SoundMenu.DisplayFlags.GREETER_PLAYERS));
this.menus.insert ("desktop", new SoundMenu ("indicator.desktop-settings", SoundMenu.DisplayFlags.SHOW_MUTE));
this.menus.insert ("phone", new SoundMenu ("indicator.phone-settings", SoundMenu.DisplayFlags.SHOW_SILENT_MODE | SoundMenu.DisplayFlags.HIDE_INACTIVE_PLAYERS));
this.menus.@foreach ( (profile, menu) => {
this.volume_control.bind_property ("active-mic", menu, "show-mic-volume", BindingFlags.SYNC_CREATE);
});
this.menus.@foreach ( (profile, menu) => {
this.volume_control.bind_property ("high-volume", menu, "show-high-volume-warning", BindingFlags.SYNC_CREATE);
});
this.sync_preferred_players ();
this.settings.changed["interested-media-players"].connect ( () => {
this.sync_preferred_players ();
});
/* Hide the notification when the menu is shown */
var shown_action = actions.lookup_action ("indicator-shown") as SimpleAction;
shown_action.change_state.connect ((state) => {
block_info_notifications = state.get_boolean();
if (block_info_notifications) {
debug("Indicator is shown");
close_notification(info_notification);
} else {
debug("Indicator is hidden");
}
});
/* Everything is built, let's put it on the bus */
try {
export_actions = bus.export_action_group ("/com/canonical/indicator/sound", this.actions);
} catch (Error e) {
critical ("%s", e.message);
}
this.menus.@foreach ( (profile, menu) => menu.export (bus, @"/com/canonical/indicator/sound/$profile"));
}
private void close_notification(Notify.Notification? n) {
return_if_fail (n != null);
if (n.id != 0) {
try {
n.close();
} catch (GLib.Error e) {
warning("Unable to close notification: %s", e.message);
}
}
}
private void show_notification(Notify.Notification? n) {
if (n != null) {
try {
n.show ();
} catch (GLib.Error e) {
warning ("Unable to show notification: %s", e.message);
}
}
}
~Service() {
debug("Destroying Service Object");
clear_acts_player();
stop_clamp_to_high_timeout();
if (this.player_action_update_id > 0) {
Source.remove (this.player_action_update_id);
this.player_action_update_id = 0;
}
if (this.sound_was_blocked_timeout_id > 0) {
Source.remove (this.sound_was_blocked_timeout_id);
this.sound_was_blocked_timeout_id = 0;
}
if (this.export_actions != 0) {
bus.unexport_action_group(this.export_actions);
this.export_actions = 0;
}
}
bool greeter_show_track () {
return export_to_accounts_service;
}
void clear_acts_player () {
/* NOTE: This is a bit of a hack to ensure that accounts service doesn't
continue to export the player by keeping a ref in the timer */
if (this.accounts_service != null)
this.accounts_service.player = null;
}
public bool visible { get; set; }
const ActionEntry[] action_entries = {
{ "root", null, null, "@a{sv} {}", null },
{ "scroll", activate_scroll_action, "i", null, null },
{ "desktop-settings", activate_desktop_settings, null, null, null },
{ "phone-settings", activate_phone_settings, null, null, null },
{ "indicator-shown", null, null, "@b false", null },
};
SimpleActionGroup actions;
HashTable<string, SoundMenu> menus;
Settings settings;
VolumeControl volume_control;
MediaPlayerList players;
uint player_action_update_id;
bool mute_blocks_sound;
uint sound_was_blocked_timeout_id;
bool syncing_preferred_players = false;
AccountsServiceUser? accounts_service = null;
bool export_to_accounts_service = false;
private Notify.Notification info_notification;
private Notify.Notification warn_notification;
const double volume_step_percentage = 0.06;
private void activate_scroll_action (SimpleAction action, Variant? param) {
int delta = param.get_int32(); /* positive for up, negative for down */
double v = volume_control.volume.volume + volume_step_percentage * delta;
volume_control.set_volume_clamp (v, VolumeControl.VolumeReasons.USER_KEYPRESS);
}
void activate_desktop_settings (SimpleAction action, Variant? param) {
var env = Environment.get_variable ("DESKTOP_SESSION");
string cmd;
if (env == "xubuntu" || env == "ubuntustudio")
cmd = "pavucontrol";
else if (env == "mate")
cmd = "mate-volume-control";
else
{
if (Environment.get_variable ("XDG_CURRENT_DESKTOP") == "Unity" && Environment.find_program_in_path ("unity-control-center") != null)
cmd = "unity-control-center sound";
else
cmd = "gnome-control-center sound";
}
try {
Process.spawn_command_line_async (cmd);
} catch (Error e) {
warning ("unable to launch sound settings: %s", e.message);
}
}
void activate_phone_settings (SimpleAction action, Variant? param) {
UrlDispatch.send ("settings:///system/sound");
}
/* Returns a serialized version of @icon_name suited for the panel */
static Variant serialize_themed_icon (string icon_name)
{
var icon = new ThemedIcon.with_default_fallbacks (icon_name);
return icon.serialize ();
}
void update_root_icon () {
double volume = this.volume_control.volume.volume;
string icon;
if (this.volume_control.mute || volume <= 0.0)
icon = this.mute_blocks_sound ? "audio-volume-muted-blocking-panel" : "audio-volume-muted-panel";
else if (this.accounts_service != null && this.accounts_service.silentMode)
icon = "audio-volume-muted-panel";
else if (volume <= 0.3)
icon = "audio-volume-low-panel";
else if (volume <= 0.7)
icon = "audio-volume-medium-panel";
else
icon = "audio-volume-high-panel";
string accessible_name;
if (this.volume_control.mute) {
accessible_name = _("Volume (muted)");
} else if (this.accounts_service != null && this.accounts_service.silentMode) {
int volume_int = (int)(volume * 100);
accessible_name = "%s (%s %d%%)".printf (_("Volume"), _("silent"), volume_int);
} else {
int volume_int = (int)(volume * 100);
accessible_name = "%s (%d%%)".printf (_("Volume"), volume_int);
}
var root_action = actions.lookup_action ("root") as SimpleAction;
var builder = new VariantBuilder (new VariantType ("a{sv}"));
builder.add ("{sv}", "title", new Variant.string (_("Sound")));
builder.add ("{sv}", "accessible-desc", new Variant.string (accessible_name));
builder.add ("{sv}", "icon", serialize_themed_icon (icon));
builder.add ("{sv}", "visible", new Variant.boolean (this.visible));
root_action.set_state (builder.end());
}
private bool notify_server_caps_checked = false;
private bool notify_server_supports_actions = false;
private bool notify_server_supports_sync = false;
private bool block_info_notifications = false;
private void update_notification () {
if (!notify_server_caps_checked) {
List<string> caps = Notify.get_server_caps ();
notify_server_supports_actions = caps.find_custom ("actions", strcmp) != null;
notify_server_supports_sync = caps.find_custom ("x-canonical-private-synchronous", strcmp) != null;
notify_server_caps_checked = true;
}
var loud = volume_control.high_volume;
var warn = loud
&& this.notify_server_supports_actions
&& !this.volume_control.high_volume_approved;
if (warn) {
close_notification(info_notification);
if (_pre_warn_volume == null) {
_pre_warn_volume = new VolumeControl.Volume();
_pre_warn_volume.volume = volume_control.volume.volume;
_pre_warn_volume.reason = volume_control.volume.reason;
}
warn_notification.clear_actions();
warn_notification.add_action ("ok", _("OK"), (n, a) => {
stop_clamp_to_high_timeout();
volume_control.approve_high_volume ();
if (_pre_warn_volume != null) {
var tmp = _pre_warn_volume;
_pre_warn_volume = null;
volume_control.volume = tmp;
}
});
warn_notification.add_action ("cancel", _("Cancel"), (n, a) => {
_pre_warn_volume = null;
});
show_notification(warn_notification);
} else {
close_notification(warn_notification);
if (notify_server_supports_sync && !block_info_notifications) {
/* Determine Label */
unowned string volume_label = loud
? _("High volume can damage your hearing.")
: "";
/* Choose an icon */
unowned string icon;
if (loud) {
icon = "audio-volume-high";
} else {
var volume = volume_control.volume.volume;
if (volume <= 0.0)
icon = "audio-volume-muted";
else if (volume <= 0.3)
icon = "audio-volume-low";
else if (volume <= 0.7)
icon = "audio-volume-medium";
else
icon = "audio-volume-high";
}
/* Reset the notification */
var n = this.info_notification;
n.update (_("Volume"), volume_label, icon);
n.clear_hints();
n.set_hint ("x-canonical-non-shaped-icon", "true");
n.set_hint ("x-canonical-private-synchronous", "true");
n.set_hint ("x-canonical-value-bar-tint", loud ? "true" : "false");
n.set_hint ("value", (int32)Math.round(get_volume_percent() * 100.0));
show_notification(n);
}
}
}
SimpleAction silent_action;
Action create_silent_mode_action () {
bool silentNow = false;
if (this.accounts_service != null) {
silentNow = this.accounts_service.silentMode;
}
silent_action = new SimpleAction.stateful ("silent-mode", null, new Variant.boolean (silentNow));
/* If we're not dealing with accounts service, we'll just always be out
of silent mode and that's cool. */
if (this.accounts_service == null) {
return silent_action;
}
this.accounts_service.notify["silentMode"].connect(() => {
silent_action.set_state(new Variant.boolean(this.accounts_service.silentMode));
this.update_root_icon ();
});
silent_action.activate.connect ((action, param) => {
action.change_state (new Variant.boolean (!action.get_state().get_boolean()));
});
silent_action.change_state.connect ((action, val) => {
this.accounts_service.silentMode = val.get_boolean();
});
return silent_action;
}
SimpleAction mute_action;
Action create_mute_action () {
mute_action = new SimpleAction.stateful ("mute", null, new Variant.boolean (this.volume_control.mute));
mute_action.activate.connect ( (action, param) => {
action.change_state (new Variant.boolean (!action.get_state ().get_boolean ()));
});
mute_action.change_state.connect ( (action, val) => {
volume_control.set_mute (val.get_boolean ());
});
this.volume_control.notify["mute"].connect ( () => {
mute_action.set_state (new Variant.boolean (this.volume_control.mute));
this.update_root_icon ();
});
this.volume_control.notify["is-playing"].connect( () => {
if (!this.volume_control.mute) {
this.mute_blocks_sound = false;
return;
}
if (this.volume_control.is_playing) {
this.mute_blocks_sound = true;
}
else if (this.mute_blocks_sound) {
/* Continue to show the blocking icon five seconds after a player has tried to play something */
if (this.sound_was_blocked_timeout_id > 0)
Source.remove (this.sound_was_blocked_timeout_id);
this.sound_was_blocked_timeout_id = Timeout.add_seconds (5, () => {
this.mute_blocks_sound = false;
this.sound_was_blocked_timeout_id = 0;
this.update_root_icon ();
return false;
});
}
this.update_root_icon ();
});
return mute_action;
}
/* return the current volume in the range of [0.0, 1.0] */
private double get_volume_percent() {
return volume_control.volume.volume / this.volume_control.max_volume;
}
/* volume control's range can vary depending on its max_volume property,
* but the action always needs to be in [0.0, 1.0]... */
private Variant create_volume_action_state() {
return new Variant.double (get_volume_percent());
}
private void update_volume_action_state() {
volume_action.set_state(create_volume_action_state());
}
private SimpleAction volume_action;
private Action create_volume_action () {
volume_action = new SimpleAction.stateful ("volume", VariantType.INT32, create_volume_action_state());
volume_action.change_state.connect ( (action, val) => {
double v = val.get_double () * this.volume_control.max_volume;
volume_control.set_volume_clamp (v, VolumeControl.VolumeReasons.USER_KEYPRESS);
});
/* activating this action changes the volume by the amount given in the parameter */
volume_action.activate.connect ((a,p) => activate_scroll_action(a,p));
this.volume_control.notify["max-volume"].connect(() => {
update_volume_action_state();
});
this.volume_control.notify["volume"].connect (() => {
update_volume_action_state();
this.update_root_icon ();
var reason = volume_control.volume.reason;
if (reason == VolumeControl.VolumeReasons.USER_KEYPRESS ||
reason == VolumeControl.VolumeReasons.DEVICE_OUTPUT_CHANGE)
this.update_notification ();
if ((warn_notification.id != 0) && (_pre_warn_volume != null))
clamp_to_high_soon();
});
this.volume_control.bind_property ("ready", volume_action, "enabled", BindingFlags.SYNC_CREATE);
return volume_action;
}
SimpleAction mic_volume_action;
Action create_mic_volume_action () {
mic_volume_action = new SimpleAction.stateful ("mic-volume", null, new Variant.double (this.volume_control.mic_volume));
mic_volume_action.change_state.connect ( (action, val) => {
volume_control.mic_volume = val.get_double ();
});
this.volume_control.notify["mic-volume"].connect ( () => {
mic_volume_action.set_state (new Variant.double (this.volume_control.mic_volume));
});
this.volume_control.bind_property ("ready", mic_volume_action, "enabled", BindingFlags.SYNC_CREATE);
return mic_volume_action;
}
SimpleAction high_volume_action;
Action create_high_volume_action () {
high_volume_action = new SimpleAction.stateful("high-volume", null, new Variant.boolean (this.volume_control.high_volume));
this.volume_control.notify["high-volume"].connect( () => {
high_volume_action.set_state(new Variant.boolean (this.volume_control.high_volume));
update_notification();
});
return high_volume_action;
}
uint export_actions = 0;
Variant action_state_for_player (MediaPlayer player, bool show_track = true) {
var builder = new VariantBuilder (new VariantType ("a{sv}"));
builder.add ("{sv}", "running", new Variant ("b", player.is_running));
builder.add ("{sv}", "state", new Variant ("s", player.state));
if (player.current_track != null && show_track) {
builder.add ("{sv}", "title", new Variant ("s", player.current_track.title));
builder.add ("{sv}", "artist", new Variant ("s", player.current_track.artist));
builder.add ("{sv}", "album", new Variant ("s", player.current_track.album));
builder.add ("{sv}", "art-url", new Variant ("s", player.current_track.art_url));
}
return builder.end ();
}
bool update_player_actions () {
bool clear_accounts_player = true;
foreach (var player in this.players) {
SimpleAction? action = this.actions.lookup_action (player.id) as SimpleAction;
if (action != null) {
action.set_state (this.action_state_for_player (player));
action.set_enabled (player.can_raise);
}
SimpleAction? greeter_action = this.actions.lookup_action (player.id + ".greeter") as SimpleAction;
if (greeter_action != null) {
greeter_action.set_state (this.action_state_for_player (player, greeter_show_track()));
greeter_action.set_enabled (player.can_raise);
}
/* If we're playing then put that data in accounts service */
if (player.is_running && export_to_accounts_service && accounts_service != null) {
accounts_service.player = player;
clear_accounts_player = false;
}
}
if (clear_accounts_player)
clear_acts_player();
this.player_action_update_id = 0;
return false;
}
void eventually_update_player_actions () {
if (player_action_update_id == 0)
this.player_action_update_id = Idle.add (this.update_player_actions);
}
void sync_preferred_players () {
this.syncing_preferred_players = true;
this.players.sync (settings.get_strv ("interested-media-players"));
this.syncing_preferred_players = false;
}
void update_preferred_players () {
/* only write the key if we're not getting this call because we're syncing from the key right now */
if (!this.syncing_preferred_players) {
var builder = new VariantBuilder (VariantType.STRING_ARRAY);
foreach (var player in this.players)
builder.add ("s", player.id);
this.settings.set_value ("interested-media-players", builder.end ());
}
}
void player_added (MediaPlayer player) {
this.menus.@foreach ( (profile, menu) => menu.add_player (player));
SimpleAction action = new SimpleAction.stateful (player.id, null, this.action_state_for_player (player));
action.set_enabled (player.can_raise);
action.activate.connect ( () => { player.activate (); });
this.actions.add_action (action);
SimpleAction greeter_action = new SimpleAction.stateful (player.id + ".greeter", null, this.action_state_for_player (player, greeter_show_track()));
greeter_action.set_enabled (player.can_raise);
greeter_action.activate.connect ( () => { player.activate (); });
this.actions.add_action (greeter_action);
var play_action = new SimpleAction.stateful ("play." + player.id, null, player.state);
play_action.activate.connect ( () => player.play_pause () );
this.actions.add_action (play_action);
player.notify["state"].connect ( (object, pspec) => {
play_action.set_state (player.state);
});
var next_action = new SimpleAction ("next." + player.id, null);
next_action.activate.connect ( () => player.next () );
this.actions.add_action (next_action);
var prev_action = new SimpleAction ("previous." + player.id, null);
prev_action.activate.connect ( () => player.previous () );
this.actions.add_action (prev_action);
var playlist_action = new SimpleAction ("play-playlist." + player.id, VariantType.STRING);
playlist_action.activate.connect ( (parameter) => player.activate_playlist_by_name (parameter.get_string ()) );
this.actions.add_action (playlist_action);
player.notify.connect (this.eventually_update_player_actions);
this.update_preferred_players ();
}
void player_removed (MediaPlayer player) {
this.actions.remove_action (player.id);
this.actions.remove_action ("play." + player.id);
this.actions.remove_action ("next." + player.id);
this.actions.remove_action ("previous." + player.id);
this.actions.remove_action ("play-playlist." + player.id);
player.notify.disconnect (this.eventually_update_player_actions);
this.menus.@foreach ( (profile, menu) => menu.remove_player (player));
this.update_preferred_players ();
}
/** VOLUME CLAMPING **/
private uint _clamp_to_high_timeout = 0;
private void stop_clamp_to_high_timeout() {
if (_clamp_to_high_timeout != 0) {
Source.remove(_clamp_to_high_timeout);
_clamp_to_high_timeout = 0;
}
}
private void clamp_to_high_soon() {
const uint interval_msec = 200;
if (_clamp_to_high_timeout == 0)
_clamp_to_high_timeout = Timeout.add(interval_msec, clamp_to_high_idle);
}
private bool clamp_to_high_idle() {
_clamp_to_high_timeout = 0;
volume_control.clamp_to_high_volume();
return false; // Source.REMOVE;
}
}
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