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Diffstat (limited to '')
| -rw-r--r-- | panels/sound/cc-device-combo-box.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/panels/sound/cc-device-combo-box.c b/panels/sound/cc-device-combo-box.c new file mode 100644 index 0000000..85537ef --- /dev/null +++ b/panels/sound/cc-device-combo-box.c @@ -0,0 +1,213 @@ +/* -*- 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 "cc-device-combo-box.h" +#include "cc-sound-resources.h" + +struct _CcDeviceComboBox +{ + GtkComboBox parent_instance; + + GtkListStore *device_model; + + GvcMixerControl *mixer_control; + guint added_handler_id; + guint removed_handler_id; + guint active_update_handler_id; + gboolean is_output; +}; + +G_DEFINE_TYPE (CcDeviceComboBox, cc_device_combo_box, GTK_TYPE_COMBO_BOX) + +static void +device_added_cb (CcDeviceComboBox *self, + guint id) +{ + GvcMixerUIDevice *device = NULL; + g_autofree gchar *label = NULL; + g_autofree gchar *icon_name = NULL; + const gchar *origin; + GtkTreeIter iter; + + if (self->is_output) + device = gvc_mixer_control_lookup_output_id (self->mixer_control, id); + else + device = gvc_mixer_control_lookup_input_id (self->mixer_control, id); + if (device == NULL) + return; + + origin = gvc_mixer_ui_device_get_origin (device); + if (origin && origin[0] != '\0') + { + label = g_strdup_printf ("%s - %s", + gvc_mixer_ui_device_get_description (device), + origin); + } + else + { + label = g_strdup (gvc_mixer_ui_device_get_description (device)); + } + + if (gvc_mixer_ui_device_get_icon_name (device) != NULL) + icon_name = g_strdup_printf ("%s-symbolic", gvc_mixer_ui_device_get_icon_name (device)); + + gtk_list_store_append (self->device_model, &iter); + gtk_list_store_set (self->device_model, &iter, + 0, label, + 1, icon_name, + 2, id, + -1); +} + +static gboolean +get_iter (CcDeviceComboBox *self, + guint id, + GtkTreeIter *iter) +{ + if (!gtk_tree_model_get_iter_first (GTK_TREE_MODEL (self->device_model), iter)) + return FALSE; + + do + { + guint i; + + gtk_tree_model_get (GTK_TREE_MODEL (self->device_model), iter, 2, &i, -1); + if (i == id) + return TRUE; + } while (gtk_tree_model_iter_next (GTK_TREE_MODEL (self->device_model), iter)); + + return FALSE; +} + +static void +device_removed_cb (CcDeviceComboBox *self, + guint id) +{ + GtkTreeIter iter; + + if (get_iter (self, id, &iter)) + gtk_list_store_remove (self->device_model, &iter); +} + +static void +active_device_update_cb (CcDeviceComboBox *self, + guint id) +{ + GtkTreeIter iter; + + if (get_iter (self, id, &iter)) + gtk_combo_box_set_active_iter (GTK_COMBO_BOX (self), &iter); +} + +static void +cc_device_combo_box_dispose (GObject *object) +{ + CcDeviceComboBox *self = CC_DEVICE_COMBO_BOX (object); + + g_clear_object (&self->mixer_control); + + G_OBJECT_CLASS (cc_device_combo_box_parent_class)->dispose (object); +} + +void +cc_device_combo_box_class_init (CcDeviceComboBoxClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + + object_class->dispose = cc_device_combo_box_dispose; + + gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/control-center/sound/cc-device-combo-box.ui"); + + gtk_widget_class_bind_template_child (widget_class, CcDeviceComboBox, device_model); +} + +void +cc_device_combo_box_init (CcDeviceComboBox *self) +{ + g_resources_register (cc_sound_get_resource ()); + + gtk_widget_init_template (GTK_WIDGET (self)); +} + +void +cc_device_combo_box_set_mixer_control (CcDeviceComboBox *self, + GvcMixerControl *mixer_control, + gboolean is_output) +{ + const gchar *added_signal, *removed_signal, *active_update_signal; + g_return_if_fail (CC_IS_DEVICE_COMBO_BOX (self)); + + if (self->mixer_control != NULL) + { + g_signal_handler_disconnect (self->mixer_control, self->added_handler_id); + self->added_handler_id = 0; + g_signal_handler_disconnect (self->mixer_control, self->removed_handler_id); + self->removed_handler_id = 0; + g_signal_handler_disconnect (self->mixer_control, self->active_update_handler_id); + self->active_update_handler_id = 0; + } + g_clear_object (&self->mixer_control); + + self->mixer_control = g_object_ref (mixer_control); + self->is_output = is_output; + if (is_output) + { + added_signal = "output-added"; + removed_signal = "output-removed"; + active_update_signal = "active-output-update"; + } + else + { + added_signal = "input-added"; + removed_signal = "input-removed"; + active_update_signal = "active-input-update"; + } + + self->added_handler_id = g_signal_connect_object (self->mixer_control, + added_signal, + G_CALLBACK (device_added_cb), + self, G_CONNECT_SWAPPED); + self->removed_handler_id = g_signal_connect_object (self->mixer_control, + removed_signal, + G_CALLBACK (device_removed_cb), + self, G_CONNECT_SWAPPED); + self->active_update_handler_id = g_signal_connect_object (self->mixer_control, + active_update_signal, + G_CALLBACK (active_device_update_cb), + self, G_CONNECT_SWAPPED); +} + +GvcMixerUIDevice * +cc_device_combo_box_get_device (CcDeviceComboBox *self) +{ + GtkTreeIter iter; + guint id; + + g_return_val_if_fail (CC_IS_DEVICE_COMBO_BOX (self), NULL); + + if (!gtk_combo_box_get_active_iter (GTK_COMBO_BOX (self), &iter)) + return NULL; + + gtk_tree_model_get (GTK_TREE_MODEL (self->device_model), &iter, 2, &id, -1); + + if (self->is_output) + return gvc_mixer_control_lookup_output_id (self->mixer_control, id); + else + return gvc_mixer_control_lookup_input_id (self->mixer_control, id); +} |