gnome-control-center/panels/sound/cc-sound-panel.c
Jonas Dreßler a74bc5a84d sound: Block our own signal handlers while updating the active-device combo box
When we get notified of an "active-input/output-device" change by gvc, we have
to update our respective combo box to reflect that change. Obviously, this in
turn shouldn't trigger our own signal handler for changes on that combo box,
that signal handler is only meant to handle the user interacting with the combo
box.

So block our signal handlers when we update the combo box to respond to changes
from the gvc side.

This fixes a recursive call to gvc_mixer_control_change_input/output() when we
get notified about an input/output change from gvc itself.
2024-03-12 08:33:58 +00:00

401 lines
15 KiB
C

/*
* Copyright (C) 2008 Red Hat, Inc.
*
* 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; either version 2 of the
* License, or (at your option) any later version.
*
* 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
* Lesser 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/>.
*/
#include "config.h"
#include <libintl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <glib/gi18n-lib.h>
#include <glib.h>
#include <gtk/gtk.h>
#include <pulse/pulseaudio.h>
#include <gvc-mixer-control.h>
#include "cc-list-row.h"
#include "cc-alert-chooser-window.h"
#include "cc-balance-slider.h"
#include "cc-device-combo-box.h"
#include "cc-fade-slider.h"
#include "cc-level-bar.h"
#include "cc-output-test-window.h"
#include "cc-profile-combo-box.h"
#include "cc-sound-panel.h"
#include "cc-sound-resources.h"
#include "cc-subwoofer-slider.h"
#include "cc-volume-levels-window.h"
#include "cc-volume-slider.h"
struct _CcSoundPanel
{
CcPanel parent_instance;
AdwPreferencesGroup *output_group;
CcLevelBar *output_level_bar;
CcDeviceComboBox *output_device_combo_box;
AdwPreferencesRow *output_profile_row;
CcProfileComboBox *output_profile_combo_box;
CcVolumeSlider *output_volume_slider;
CcBalanceSlider *balance_slider;
AdwPreferencesRow *fade_row;
CcFadeSlider *fade_slider;
AdwPreferencesRow *subwoofer_row;
CcSubwooferSlider *subwoofer_slider;
AdwPreferencesGroup *output_no_devices_group;
AdwPreferencesGroup *input_group;
CcLevelBar *input_level_bar;
CcDeviceComboBox *input_device_combo_box;
AdwPreferencesRow *input_profile_row;
CcProfileComboBox *input_profile_combo_box;
CcVolumeSlider *input_volume_slider;
AdwPreferencesGroup *input_no_devices_group;
CcListRow *alert_sound_row;
GvcMixerControl *mixer_control;
GSettings *sound_settings;
};
CC_PANEL_REGISTER (CcSoundPanel, cc_sound_panel)
enum
{
PROP_0,
PROP_PARAMETERS
};
#define KEY_SOUNDS_SCHEMA "org.gnome.desktop.sound"
static void
update_alert_sound_label (CcSoundPanel *self)
{
const gchar *alert_name = get_selected_alert_display_name ();
cc_list_row_set_secondary_label (self->alert_sound_row, alert_name);
}
static void
allow_amplified_changed_cb (CcSoundPanel *self)
{
cc_volume_slider_set_is_amplified (self->output_volume_slider,
g_settings_get_boolean (self->sound_settings, "allow-volume-above-100-percent"));
}
static void
set_output_stream (CcSoundPanel *self,
GvcMixerStream *stream)
{
GvcChannelMap *map = NULL;
gboolean can_fade = FALSE, has_lfe = FALSE;
cc_volume_slider_set_stream (self->output_volume_slider, stream, CC_STREAM_TYPE_OUTPUT);
cc_level_bar_set_stream (self->output_level_bar, stream);
if (stream != NULL)
{
map = (GvcChannelMap *) gvc_mixer_stream_get_channel_map (stream);
can_fade = gvc_channel_map_can_fade (map);
has_lfe = gvc_channel_map_has_lfe (map);
}
cc_fade_slider_set_channel_map (self->fade_slider, map);
cc_balance_slider_set_channel_map (self->balance_slider, map);
cc_subwoofer_slider_set_channel_map (self->subwoofer_slider, map);
gtk_widget_set_visible (GTK_WIDGET (self->fade_row), can_fade);
gtk_widget_set_visible (GTK_WIDGET (self->subwoofer_row), has_lfe);
}
static void
output_device_changed_cb (CcSoundPanel *self)
{
GvcMixerUIDevice *device;
GvcMixerStream *stream = NULL;
device = cc_device_combo_box_get_device (self->output_device_combo_box);
gtk_widget_set_visible (GTK_WIDGET (self->output_group), device != NULL);
gtk_widget_set_visible (GTK_WIDGET (self->output_no_devices_group), device == NULL);
if (device != NULL)
stream = gvc_mixer_control_get_stream_from_device (self->mixer_control, device);
set_output_stream (self, stream);
if (device != NULL)
gvc_mixer_control_change_output (self->mixer_control, device);
}
static void
set_input_stream (CcSoundPanel *self,
GvcMixerStream *stream)
{
cc_volume_slider_set_stream (self->input_volume_slider, stream, CC_STREAM_TYPE_INPUT);
cc_level_bar_set_stream (self->input_level_bar, stream);
}
static void
input_device_changed_cb (CcSoundPanel *self)
{
GvcMixerUIDevice *device;
GvcMixerStream *stream = NULL;
device = cc_device_combo_box_get_device (self->input_device_combo_box);
gtk_widget_set_visible (GTK_WIDGET (self->input_group), device != NULL);
gtk_widget_set_visible (GTK_WIDGET (self->input_no_devices_group), device == NULL);
if (device != NULL)
stream = gvc_mixer_control_get_stream_from_device (self->mixer_control, device);
set_input_stream (self, stream);
if (device != NULL)
gvc_mixer_control_change_input (self->mixer_control, device);
}
static void
output_device_update_cb (CcSoundPanel *self,
guint id)
{
GvcMixerUIDevice *device;
gboolean has_multi_profiles;
GvcMixerStream *stream = NULL;
g_signal_handlers_block_by_func(self->output_device_combo_box, output_device_changed_cb, self);
cc_device_combo_box_active_device_changed (self->output_device_combo_box, id);
g_signal_handlers_unblock_by_func(self->output_device_combo_box, output_device_changed_cb, self);
device = cc_device_combo_box_get_device (self->output_device_combo_box);
cc_profile_combo_box_set_device (self->output_profile_combo_box, self->mixer_control, device);
has_multi_profiles = (cc_profile_combo_box_get_profile_count (self->output_profile_combo_box) > 1);
gtk_widget_set_visible (GTK_WIDGET (self->output_profile_row),
has_multi_profiles);
if (cc_volume_slider_get_stream (self->output_volume_slider) == NULL)
stream = gvc_mixer_control_get_stream_from_device (self->mixer_control, device);
if (stream != NULL)
set_output_stream (self, stream);
}
static void
input_device_update_cb (CcSoundPanel *self,
guint id)
{
GvcMixerUIDevice *device;
gboolean has_multi_profiles;
GvcMixerStream *stream = NULL;
g_signal_handlers_block_by_func(self->input_device_combo_box, input_device_changed_cb, self);
cc_device_combo_box_active_device_changed (self->input_device_combo_box, id);
g_signal_handlers_unblock_by_func(self->input_device_combo_box, input_device_changed_cb, self);
device = cc_device_combo_box_get_device (self->input_device_combo_box);
cc_profile_combo_box_set_device (self->input_profile_combo_box, self->mixer_control, device);
has_multi_profiles = (cc_profile_combo_box_get_profile_count (self->input_profile_combo_box) > 1);
gtk_widget_set_visible (GTK_WIDGET (self->input_profile_row),
has_multi_profiles);
if (cc_volume_slider_get_stream (self->input_volume_slider) == NULL)
stream = gvc_mixer_control_get_stream_from_device (self->mixer_control, device);
if (stream != NULL)
set_input_stream (self, stream);
}
static void
test_output_configuration_button_clicked_cb (CcSoundPanel *self)
{
GvcMixerUIDevice *device;
GvcMixerStream *stream = NULL;
CcOutputTestWindow *window;
GtkWidget *toplevel;
CcShell *shell;
device = cc_device_combo_box_get_device (self->output_device_combo_box);
if (device != NULL)
stream = gvc_mixer_control_get_stream_from_device (self->mixer_control, device);
shell = cc_panel_get_shell (CC_PANEL (self));
toplevel = cc_shell_get_toplevel (shell);
window = cc_output_test_window_new (stream);
gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (toplevel));
gtk_window_present (GTK_WINDOW (window));
}
static void
volume_levels_activated_cb (CcSoundPanel *self)
{
CcVolumeLevelsWindow *volume_levels;
GtkWindow *toplevel;
CcShell *shell;
shell = cc_panel_get_shell (CC_PANEL (self));
toplevel = GTK_WINDOW (cc_shell_get_toplevel (shell));
volume_levels = cc_volume_levels_window_new (self->mixer_control);
gtk_window_set_transient_for (GTK_WINDOW (volume_levels), toplevel);
gtk_window_present (GTK_WINDOW (volume_levels));
}
static void
alert_sound_activated_cb (CcSoundPanel *self)
{
CcAlertChooserWindow *alert_chooser;
GtkWindow *toplevel;
CcShell *shell;
shell = cc_panel_get_shell (CC_PANEL (self));
toplevel = GTK_WINDOW (cc_shell_get_toplevel (shell));
alert_chooser = cc_alert_chooser_window_new ();
gtk_window_set_transient_for (GTK_WINDOW (alert_chooser), toplevel);
g_signal_connect_object (alert_chooser, "destroy",
G_CALLBACK (update_alert_sound_label),
self, G_CONNECT_SWAPPED);
gtk_window_present (GTK_WINDOW (alert_chooser));
}
static const char *
cc_sound_panel_get_help_uri (CcPanel *panel)
{
return "help:gnome-help/media#sound";
}
static void
cc_sound_panel_finalize (GObject *object)
{
CcSoundPanel *self = CC_SOUND_PANEL (object);
g_clear_object (&self->mixer_control);
g_clear_object (&self->sound_settings);
G_OBJECT_CLASS (cc_sound_panel_parent_class)->finalize (object);
}
static void
cc_sound_panel_class_init (CcSoundPanelClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
CcPanelClass *panel_class = CC_PANEL_CLASS (klass);
panel_class->get_help_uri = cc_sound_panel_get_help_uri;
object_class->finalize = cc_sound_panel_finalize;
gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/control-center/sound/cc-sound-panel.ui");
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, output_group);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, output_level_bar);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, output_device_combo_box);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, output_profile_row);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, output_profile_combo_box);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, output_volume_slider);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, balance_slider);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, fade_row);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, fade_slider);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, subwoofer_row);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, subwoofer_slider);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, output_no_devices_group);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, input_group);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, input_level_bar);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, input_device_combo_box);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, input_profile_row);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, input_profile_combo_box);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, input_volume_slider);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, input_no_devices_group);
gtk_widget_class_bind_template_child (widget_class, CcSoundPanel, alert_sound_row);
gtk_widget_class_bind_template_callback (widget_class, input_device_changed_cb);
gtk_widget_class_bind_template_callback (widget_class, output_device_changed_cb);
gtk_widget_class_bind_template_callback (widget_class, test_output_configuration_button_clicked_cb);
gtk_widget_class_bind_template_callback (widget_class, volume_levels_activated_cb);
gtk_widget_class_bind_template_callback (widget_class, alert_sound_activated_cb);
g_type_ensure (CC_TYPE_BALANCE_SLIDER);
g_type_ensure (CC_TYPE_DEVICE_COMBO_BOX);
g_type_ensure (CC_TYPE_FADE_SLIDER);
g_type_ensure (CC_TYPE_LEVEL_BAR);
g_type_ensure (CC_TYPE_PROFILE_COMBO_BOX);
g_type_ensure (CC_TYPE_SUBWOOFER_SLIDER);
g_type_ensure (CC_TYPE_VOLUME_SLIDER);
g_type_ensure (CC_TYPE_LIST_ROW);
}
static void
cc_sound_panel_init (CcSoundPanel *self)
{
g_resources_register (cc_sound_get_resource ());
gtk_widget_init_template (GTK_WIDGET (self));
self->sound_settings = g_settings_new (KEY_SOUNDS_SCHEMA);
g_signal_connect_object (self->sound_settings,
"changed::allow-volume-above-100-percent",
G_CALLBACK (allow_amplified_changed_cb),
self,
G_CONNECT_SWAPPED);
allow_amplified_changed_cb (self);
self->mixer_control = gvc_mixer_control_new ("GNOME Settings");
gvc_mixer_control_open (self->mixer_control);
cc_volume_slider_set_mixer_control (self->input_volume_slider, self->mixer_control);
cc_volume_slider_set_mixer_control (self->output_volume_slider, self->mixer_control);
cc_subwoofer_slider_set_mixer_control (self->subwoofer_slider, self->mixer_control);
cc_device_combo_box_set_mixer_control (self->input_device_combo_box, self->mixer_control, FALSE);
cc_device_combo_box_set_mixer_control (self->output_device_combo_box, self->mixer_control, TRUE);
g_signal_connect_object (self->mixer_control,
"input-added",
G_CALLBACK (cc_device_combo_box_device_added),
self->input_device_combo_box,
G_CONNECT_SWAPPED);
g_signal_connect_object (self->mixer_control,
"input-removed",
G_CALLBACK (cc_device_combo_box_device_removed),
self->input_device_combo_box,
G_CONNECT_SWAPPED);
g_signal_connect_object (self->mixer_control,
"active-input-update",
G_CALLBACK (input_device_update_cb),
self,
G_CONNECT_SWAPPED);
g_signal_connect_object (self->mixer_control,
"output-added",
G_CALLBACK (cc_device_combo_box_device_added),
self->output_device_combo_box,
G_CONNECT_SWAPPED);
g_signal_connect_object (self->mixer_control,
"output-removed",
G_CALLBACK (cc_device_combo_box_device_removed),
self->output_device_combo_box,
G_CONNECT_SWAPPED);
g_signal_connect_object (self->mixer_control,
"active-output-update",
G_CALLBACK (output_device_update_cb),
self,
G_CONNECT_SWAPPED);
gvc_mixer_control_open (self->mixer_control);
update_alert_sound_label (self);
}