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Diffstat (limited to '')
| -rw-r--r-- | panels/sound/cc-stream-list-box.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/panels/sound/cc-stream-list-box.c b/panels/sound/cc-stream-list-box.c new file mode 100644 index 0000000..ca914ef --- /dev/null +++ b/panels/sound/cc-stream-list-box.c @@ -0,0 +1,242 @@ +/* -*- 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 <pulse/pulseaudio.h> +#include <gvc-mixer-sink.h> +#include <gvc-mixer-source.h> + +#include "cc-stream-list-box.h" +#include "cc-stream-row.h" +#include "cc-sound-enums.h" + +struct _CcStreamListBox +{ + GtkListBox parent_instance; + + GtkSizeGroup *label_size_group; + GvcMixerControl *mixer_control; + CcStreamType stream_type; + guint stream_added_handler_id; + guint stream_removed_handler_id; +}; + +G_DEFINE_TYPE (CcStreamListBox, cc_stream_list_box, GTK_TYPE_LIST_BOX) + +enum +{ + PROP_0, + PROP_LABEL_SIZE_GROUP +}; + +static gint +sort_cb (GtkListBoxRow *row1, + GtkListBoxRow *row2, + gpointer user_data) +{ + CcStreamListBox *self = user_data; + GvcMixerStream *stream1, *stream2, *event_sink; + g_autofree gchar *name1 = NULL; + g_autofree gchar *name2 = NULL; + + stream1 = cc_stream_row_get_stream (CC_STREAM_ROW (row1)); + stream2 = cc_stream_row_get_stream (CC_STREAM_ROW (row2)); + + /* Put the system sound events control at the top */ + event_sink = gvc_mixer_control_get_event_sink_input (self->mixer_control); + if (stream1 == event_sink) + return -1; + else if (stream2 == event_sink) + return 1; + + name1 = g_utf8_casefold (gvc_mixer_stream_get_name (stream1), -1); + name2 = g_utf8_casefold (gvc_mixer_stream_get_name (stream2), -1); + + return g_strcmp0 (name1, name2); +} + +static void +stream_added_cb (CcStreamListBox *self, + guint id) +{ + GvcMixerStream *stream; + const gchar *app_id; + CcStreamRow *row; + + stream = gvc_mixer_control_lookup_stream_id (self->mixer_control, id); + if (stream == NULL) + return; + + app_id = gvc_mixer_stream_get_application_id (stream); + + /* Skip master volume controls */ + if (g_strcmp0 (app_id, "org.gnome.VolumeControl") == 0 || + g_strcmp0 (app_id, "org.PulseAudio.pavucontrol") == 0) + { + return; + } + + /* Skip streams that aren't volume controls */ + if (GVC_IS_MIXER_SOURCE (stream) || + GVC_IS_MIXER_SINK (stream) || + gvc_mixer_stream_is_virtual (stream) || + gvc_mixer_stream_is_event_stream (stream)) + { + return; + } + + row = cc_stream_row_new (self->label_size_group, stream, id, self->stream_type, self->mixer_control); + gtk_widget_show (GTK_WIDGET (row)); + gtk_list_box_row_set_activatable (GTK_LIST_BOX_ROW (row), FALSE); + gtk_container_add (GTK_CONTAINER (self), GTK_WIDGET (row)); +} + +static CcStreamRow * +find_row (CcStreamListBox *self, + guint id) +{ + g_autoptr(GList) children = NULL; + GList *link; + + children = gtk_container_get_children (GTK_CONTAINER (self)); + for (link = children; link; link = link->next) + { + CcStreamRow *row = link->data; + + if (!CC_IS_STREAM_ROW (row)) + continue; + + if (id == cc_stream_row_get_id (row)) + return row; + } + + return NULL; +} + +static void +stream_removed_cb (CcStreamListBox *self, + guint id) +{ + CcStreamRow *row; + + row = find_row (self, id); + if (row != NULL) + gtk_container_remove (GTK_CONTAINER (self), GTK_WIDGET (row)); +} + +static void +cc_stream_list_box_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + CcStreamListBox *self = CC_STREAM_LIST_BOX (object); + + switch (property_id) { + case PROP_LABEL_SIZE_GROUP: + self->label_size_group = g_value_dup_object (value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + } +} + +static void +cc_stream_list_box_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + CcStreamListBox *self = CC_STREAM_LIST_BOX (object); + + switch (property_id) { + case PROP_LABEL_SIZE_GROUP: + g_value_set_object (value, self->label_size_group); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + } +} + +static void +cc_stream_list_box_dispose (GObject *object) +{ + CcStreamListBox *self = CC_STREAM_LIST_BOX (object); + + g_clear_object (&self->mixer_control); + + G_OBJECT_CLASS (cc_stream_list_box_parent_class)->dispose (object); +} + +void +cc_stream_list_box_class_init (CcStreamListBoxClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->set_property = cc_stream_list_box_set_property; + object_class->get_property = cc_stream_list_box_get_property; + object_class->dispose = cc_stream_list_box_dispose; + + g_object_class_install_property (object_class, PROP_LABEL_SIZE_GROUP, + g_param_spec_object ("label-size-group", + NULL, + NULL, + GTK_TYPE_SIZE_GROUP, + G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); +} + +void +cc_stream_list_box_init (CcStreamListBox *self) +{ + gtk_list_box_set_selection_mode (GTK_LIST_BOX (self), GTK_SELECTION_NONE); + gtk_list_box_set_sort_func (GTK_LIST_BOX (self), sort_cb, self, NULL); +} + +void +cc_stream_list_box_set_mixer_control (CcStreamListBox *self, + GvcMixerControl *mixer_control) +{ + g_return_if_fail (CC_IS_STREAM_LIST_BOX (self)); + + if (self->mixer_control != NULL) + { + g_signal_handler_disconnect (self->mixer_control, self->stream_added_handler_id); + self->stream_added_handler_id = 0; + g_signal_handler_disconnect (self->mixer_control, self->stream_removed_handler_id); + self->stream_removed_handler_id = 0; + } + g_clear_object (&self->mixer_control); + + self->mixer_control = g_object_ref (mixer_control); + + self->stream_added_handler_id = g_signal_connect_object (self->mixer_control, + "stream-added", + G_CALLBACK (stream_added_cb), + self, G_CONNECT_SWAPPED); + self->stream_removed_handler_id = g_signal_connect_object (self->mixer_control, + "stream-removed", + G_CALLBACK (stream_removed_cb), + self, G_CONNECT_SWAPPED); +} + +void cc_stream_list_box_set_stream_type (CcStreamListBox *self, + CcStreamType stream_type) +{ + g_return_if_fail (CC_IS_STREAM_LIST_BOX (self)); + + self->stream_type = stream_type; +} |