7fddfa363f
The logic inside it is a bit reworked to make it more consistent. The mute button and the slider now only communicate directly with GVC. The notify callbacks are now used to change the UI states. This fixes the UI problem of the mute button being "raised" when pressed (see https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/520).
279 lines
8.3 KiB
C
279 lines
8.3 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
|
|
*
|
|
* Copyright (C) 2018 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; 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 <glib/gi18n.h>
|
|
#include <math.h>
|
|
#include <pulse/pulseaudio.h>
|
|
#include <gvc-mixer-control.h>
|
|
|
|
#include "cc-sound-resources.h"
|
|
#include "cc-volume-slider.h"
|
|
|
|
struct _CcVolumeSlider
|
|
{
|
|
GtkWidget parent_instance;
|
|
|
|
GtkButton *mute_button;
|
|
GtkAdjustment *volume_adjustment;
|
|
GtkScale *volume_scale;
|
|
|
|
gboolean is_amplified;
|
|
GvcMixerControl *mixer_control;
|
|
GvcMixerStream *stream;
|
|
guint notify_volume_handler_id;
|
|
guint notify_is_muted_handler_id;
|
|
};
|
|
|
|
G_DEFINE_TYPE (CcVolumeSlider, cc_volume_slider, GTK_TYPE_WIDGET)
|
|
|
|
static void
|
|
update_volume_icon (CcVolumeSlider *self)
|
|
{
|
|
const gchar *icon_name = NULL;
|
|
gdouble volume, fraction;
|
|
|
|
volume = gtk_adjustment_get_value (self->volume_adjustment);
|
|
fraction = (100.0 * volume) / gtk_adjustment_get_upper (self->volume_adjustment);
|
|
|
|
if (fraction == 0.0)
|
|
icon_name = "audio-volume-muted-symbolic";
|
|
else if (fraction < 30.0)
|
|
icon_name = "audio-volume-low-symbolic";
|
|
else if (fraction > 30.0 && fraction < 70.0)
|
|
icon_name = "audio-volume-medium-symbolic";
|
|
else
|
|
icon_name = "audio-volume-high-symbolic";
|
|
|
|
gtk_button_set_icon_name (GTK_BUTTON (self->mute_button), icon_name);
|
|
}
|
|
|
|
static void
|
|
volume_changed_cb (CcVolumeSlider *self)
|
|
{
|
|
gdouble volume, rounded;
|
|
|
|
if (self->stream == NULL)
|
|
return;
|
|
|
|
volume = gtk_adjustment_get_value (self->volume_adjustment);
|
|
rounded = round (volume);
|
|
|
|
// If the stream is muted, unmute it
|
|
if (gvc_mixer_stream_get_is_muted (self->stream))
|
|
gvc_mixer_stream_change_is_muted (self->stream, FALSE);
|
|
|
|
if (gvc_mixer_stream_set_volume (self->stream, (pa_volume_t) rounded))
|
|
gvc_mixer_stream_push_volume (self->stream);
|
|
}
|
|
|
|
static void
|
|
notify_volume_cb (CcVolumeSlider *self)
|
|
{
|
|
g_signal_handlers_block_by_func (self->volume_adjustment, volume_changed_cb, self);
|
|
gtk_adjustment_set_value (self->volume_adjustment, gvc_mixer_stream_get_volume (self->stream));
|
|
g_signal_handlers_unblock_by_func (self->volume_adjustment, volume_changed_cb, self);
|
|
|
|
update_volume_icon (self);
|
|
}
|
|
|
|
static void
|
|
update_ranges (CcVolumeSlider *self)
|
|
{
|
|
gdouble vol_max_norm;
|
|
|
|
if (self->mixer_control == NULL)
|
|
return;
|
|
|
|
vol_max_norm = gvc_mixer_control_get_vol_max_norm (self->mixer_control);
|
|
|
|
gtk_scale_clear_marks (self->volume_scale);
|
|
if (self->is_amplified)
|
|
{
|
|
gtk_adjustment_set_upper (self->volume_adjustment, gvc_mixer_control_get_vol_max_amplified (self->mixer_control));
|
|
gtk_scale_add_mark (self->volume_scale,
|
|
vol_max_norm,
|
|
GTK_POS_BOTTOM,
|
|
C_("volume", "100%"));
|
|
}
|
|
else
|
|
{
|
|
gtk_adjustment_set_upper (self->volume_adjustment, vol_max_norm);
|
|
}
|
|
gtk_adjustment_set_page_increment (self->volume_adjustment, vol_max_norm / 100.0);
|
|
|
|
if (self->stream)
|
|
notify_volume_cb (self);
|
|
}
|
|
|
|
static void
|
|
mute_cb (GtkWidget *widget,
|
|
const char *action_name,
|
|
GVariant *parameter)
|
|
{
|
|
CcVolumeSlider *self = CC_VOLUME_SLIDER (widget);
|
|
|
|
if (self->stream == NULL)
|
|
return;
|
|
|
|
gvc_mixer_stream_change_is_muted (self->stream, !gvc_mixer_stream_get_is_muted (self->stream));
|
|
}
|
|
|
|
static void
|
|
notify_is_muted_cb (CcVolumeSlider *self)
|
|
{
|
|
if (gvc_mixer_stream_get_is_muted (self->stream))
|
|
{
|
|
g_signal_handlers_block_by_func (self->volume_adjustment, volume_changed_cb, self);
|
|
gtk_adjustment_set_value (self->volume_adjustment, 0.0);
|
|
g_signal_handlers_unblock_by_func (self->volume_adjustment, volume_changed_cb, self);
|
|
|
|
update_volume_icon (self);
|
|
}
|
|
else
|
|
{
|
|
notify_volume_cb (self);
|
|
}
|
|
}
|
|
|
|
static void
|
|
cc_volume_slider_dispose (GObject *object)
|
|
{
|
|
CcVolumeSlider *self = CC_VOLUME_SLIDER (object);
|
|
|
|
g_clear_pointer ((GtkWidget **) &self->volume_scale, gtk_widget_unparent);
|
|
g_clear_pointer ((GtkWidget **) &self->mute_button, gtk_widget_unparent);
|
|
|
|
g_clear_object (&self->mixer_control);
|
|
g_clear_object (&self->stream);
|
|
|
|
G_OBJECT_CLASS (cc_volume_slider_parent_class)->dispose (object);
|
|
}
|
|
|
|
void
|
|
cc_volume_slider_class_init (CcVolumeSliderClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
|
|
|
|
object_class->dispose = cc_volume_slider_dispose;
|
|
|
|
gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/control-center/sound/cc-volume-slider.ui");
|
|
|
|
gtk_widget_class_bind_template_child (widget_class, CcVolumeSlider, mute_button);
|
|
gtk_widget_class_bind_template_child (widget_class, CcVolumeSlider, volume_adjustment);
|
|
gtk_widget_class_bind_template_child (widget_class, CcVolumeSlider, volume_scale);
|
|
|
|
gtk_widget_class_bind_template_callback (widget_class, volume_changed_cb);
|
|
|
|
gtk_widget_class_install_action (widget_class, "volume-slider.mute", NULL, mute_cb);
|
|
|
|
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT);
|
|
}
|
|
|
|
void
|
|
cc_volume_slider_init (CcVolumeSlider *self)
|
|
{
|
|
GtkLayoutManager *box_layout;
|
|
|
|
g_resources_register (cc_sound_get_resource ());
|
|
|
|
gtk_widget_init_template (GTK_WIDGET (self));
|
|
|
|
box_layout = gtk_widget_get_layout_manager (GTK_WIDGET (self));
|
|
gtk_box_layout_set_spacing (GTK_BOX_LAYOUT (box_layout), 6);
|
|
}
|
|
|
|
void
|
|
cc_volume_slider_set_mixer_control (CcVolumeSlider *self,
|
|
GvcMixerControl *mixer_control)
|
|
{
|
|
g_return_if_fail (CC_IS_VOLUME_SLIDER (self));
|
|
|
|
g_set_object (&self->mixer_control, mixer_control);
|
|
|
|
update_ranges (self);
|
|
}
|
|
|
|
void
|
|
cc_volume_slider_set_stream (CcVolumeSlider *self,
|
|
GvcMixerStream *stream,
|
|
CcStreamType type)
|
|
{
|
|
g_return_if_fail (CC_IS_VOLUME_SLIDER (self));
|
|
|
|
if (self->stream != NULL)
|
|
{
|
|
g_signal_handler_disconnect (self->stream, self->notify_volume_handler_id);
|
|
self->notify_volume_handler_id = 0;
|
|
g_signal_handler_disconnect (self->stream, self->notify_is_muted_handler_id);
|
|
self->notify_is_muted_handler_id = 0;
|
|
}
|
|
g_clear_object (&self->stream);
|
|
|
|
switch (type)
|
|
{
|
|
case CC_STREAM_TYPE_INPUT:
|
|
gtk_button_set_icon_name (GTK_BUTTON (self->mute_button),
|
|
"microphone-sensitivity-muted-symbolic");
|
|
break;
|
|
|
|
case CC_STREAM_TYPE_OUTPUT:
|
|
gtk_button_set_icon_name (GTK_BUTTON (self->mute_button),
|
|
"audio-volume-muted-symbolic");
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
if (stream != NULL)
|
|
{
|
|
self->stream = g_object_ref (stream);
|
|
|
|
self->notify_volume_handler_id = g_signal_connect_object (stream,
|
|
"notify::volume",
|
|
G_CALLBACK (notify_volume_cb),
|
|
self, G_CONNECT_SWAPPED);
|
|
self->notify_is_muted_handler_id = g_signal_connect_object (stream,
|
|
"notify::is-muted",
|
|
G_CALLBACK (notify_is_muted_cb),
|
|
self, G_CONNECT_SWAPPED);
|
|
notify_volume_cb (self);
|
|
notify_is_muted_cb (self);
|
|
}
|
|
}
|
|
|
|
GvcMixerStream *
|
|
cc_volume_slider_get_stream (CcVolumeSlider *self)
|
|
{
|
|
g_return_val_if_fail (CC_IS_VOLUME_SLIDER (self), NULL);
|
|
|
|
return self->stream;
|
|
}
|
|
|
|
void
|
|
cc_volume_slider_set_is_amplified (CcVolumeSlider *self,
|
|
gboolean is_amplified)
|
|
{
|
|
g_return_if_fail (CC_IS_VOLUME_SLIDER (self));
|
|
|
|
self->is_amplified = is_amplified;
|
|
|
|
update_ranges (self);
|
|
}
|