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-rw-r--r--plugins/media-keys/audio-selection-test.c263
1 files changed, 263 insertions, 0 deletions
diff --git a/plugins/media-keys/audio-selection-test.c b/plugins/media-keys/audio-selection-test.c
new file mode 100644
index 0000000..d06759f
--- /dev/null
+++ b/plugins/media-keys/audio-selection-test.c
@@ -0,0 +1,263 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2017 Bastien Nocera <hadess@hadess.net>
+ *
+ * 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 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 <gtk/gtk.h>
+
+#define AUDIO_SELECTION_DBUS_NAME "org.gnome.Shell.AudioDeviceSelection"
+#define AUDIO_SELECTION_DBUS_PATH "/org/gnome/Shell/AudioDeviceSelection"
+#define AUDIO_SELECTION_DBUS_INTERFACE "org.gnome.Shell.AudioDeviceSelection"
+
+static guint audio_selection_watch_id;
+static guint audio_selection_signal_id;
+static GDBusConnection *audio_selection_conn;
+static gboolean audio_selection_requested;
+static GtkWidget *check_headphones, *check_headset, *check_micro;
+static GtkWidget *button, *label;
+
+/* Copy-paste from gvc-mixer-control.h */
+typedef enum
+{
+ GVC_HEADSET_PORT_CHOICE_NONE = 0,
+ GVC_HEADSET_PORT_CHOICE_HEADPHONES = 1 << 0,
+ GVC_HEADSET_PORT_CHOICE_HEADSET = 1 << 1,
+ GVC_HEADSET_PORT_CHOICE_MIC = 1 << 2
+} GvcHeadsetPortChoice;
+
+typedef struct {
+ GvcHeadsetPortChoice choice;
+ gchar *name;
+} AudioSelectionChoice;
+
+static AudioSelectionChoice audio_selection_choices[] = {
+ { GVC_HEADSET_PORT_CHOICE_HEADPHONES, "headphones" },
+ { GVC_HEADSET_PORT_CHOICE_HEADSET, "headset" },
+ { GVC_HEADSET_PORT_CHOICE_MIC, "microphone" },
+};
+
+static void
+audio_selection_done (GDBusConnection *connection,
+ const gchar *sender_name,
+ const gchar *object_path,
+ const gchar *interface_name,
+ const gchar *signal_name,
+ GVariant *parameters,
+ gpointer data)
+{
+ const gchar *choice;
+
+ if (!audio_selection_requested)
+ return;
+
+ choice = NULL;
+ g_variant_get_child (parameters, 0, "&s", &choice);
+ if (!choice)
+ return;
+
+ gtk_label_set_text (GTK_LABEL (label), choice);
+
+ audio_selection_requested = FALSE;
+}
+
+static void
+audio_selection_needed (GvcHeadsetPortChoice choices)
+{
+ gchar *args[G_N_ELEMENTS (audio_selection_choices) + 1];
+ guint i, n;
+
+ if (!audio_selection_conn)
+ return;
+
+ n = 0;
+ for (i = 0; i < G_N_ELEMENTS (audio_selection_choices); ++i) {
+ if (choices & audio_selection_choices[i].choice)
+ args[n++] = audio_selection_choices[i].name;
+ }
+ args[n] = NULL;
+
+ audio_selection_requested = TRUE;
+ g_dbus_connection_call (audio_selection_conn,
+ AUDIO_SELECTION_DBUS_NAME,
+ AUDIO_SELECTION_DBUS_PATH,
+ AUDIO_SELECTION_DBUS_INTERFACE,
+ "Open",
+ g_variant_new ("(^as)", args),
+ NULL,
+ G_DBUS_CALL_FLAGS_NONE,
+ -1, NULL, NULL, NULL);
+}
+
+static void
+update_ask_button (void)
+{
+ guint num_buttons = 0;
+ gboolean active = FALSE;
+
+ /* Need gnome-shell running */
+ if (audio_selection_conn == NULL)
+ goto end;
+
+ /* Need at least 2 choices */
+ if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check_headphones)))
+ num_buttons++;
+ if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check_headset)))
+ num_buttons++;
+ if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check_micro)))
+ num_buttons++;
+
+ if (num_buttons < 2)
+ goto end;
+
+ /* And no questions in flight */
+ if (audio_selection_requested)
+ goto end;
+
+ active = TRUE;
+
+end:
+ gtk_widget_set_sensitive (GTK_WIDGET (button), active);
+}
+
+static void
+audio_selection_appeared (GDBusConnection *connection,
+ const gchar *name,
+ const gchar *name_owner,
+ gpointer data)
+{
+ audio_selection_conn = connection;
+ audio_selection_signal_id =
+ g_dbus_connection_signal_subscribe (connection,
+ AUDIO_SELECTION_DBUS_NAME,
+ AUDIO_SELECTION_DBUS_INTERFACE,
+ "DeviceSelected",
+ AUDIO_SELECTION_DBUS_PATH,
+ NULL,
+ G_DBUS_SIGNAL_FLAGS_NONE,
+ audio_selection_done,
+ NULL,
+ NULL);
+ update_ask_button ();
+}
+
+static void
+audio_selection_vanished (GDBusConnection *connection,
+ const gchar *name,
+ gpointer data)
+{
+ if (audio_selection_signal_id)
+ g_dbus_connection_signal_unsubscribe (audio_selection_conn,
+ audio_selection_signal_id);
+ audio_selection_signal_id = 0;
+ audio_selection_conn = NULL;
+ update_ask_button ();
+}
+
+static void
+watch_gnome_shell (void)
+{
+ audio_selection_watch_id =
+ g_bus_watch_name (G_BUS_TYPE_SESSION,
+ AUDIO_SELECTION_DBUS_NAME,
+ G_BUS_NAME_WATCHER_FLAGS_NONE,
+ audio_selection_appeared,
+ audio_selection_vanished,
+ NULL,
+ NULL);
+}
+
+static void
+check_buttons_changed (GtkToggleButton *button,
+ gpointer user_data)
+{
+ update_ask_button ();
+}
+
+static void
+button_clicked (GtkButton *button,
+ gpointer user_data)
+{
+ guint choices = 0;
+
+ gtk_label_set_text (GTK_LABEL (label), "");
+
+ if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check_headphones)))
+ choices |= GVC_HEADSET_PORT_CHOICE_HEADPHONES;
+ if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check_headset)))
+ choices |= GVC_HEADSET_PORT_CHOICE_HEADSET;
+ if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check_micro)))
+ choices |= GVC_HEADSET_PORT_CHOICE_MIC;
+
+ audio_selection_needed (choices);
+}
+
+static void
+setup_ui (void)
+{
+ GtkWidget *window;
+ GtkWidget *box;
+
+ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ g_signal_connect (GTK_WINDOW (window), "delete-event",
+ G_CALLBACK (gtk_main_quit), NULL);
+ box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
+ gtk_container_add (GTK_CONTAINER (window), box);
+
+ check_headphones = gtk_check_button_new_with_label ("Headphones");
+ g_signal_connect (check_headphones, "toggled",
+ G_CALLBACK (check_buttons_changed), NULL);
+ gtk_container_add (GTK_CONTAINER (box), check_headphones);
+
+ check_headset = gtk_check_button_new_with_label ("Headset");
+ g_signal_connect (check_headset, "toggled",
+ G_CALLBACK (check_buttons_changed), NULL);
+ gtk_container_add (GTK_CONTAINER (box), check_headset);
+
+ check_micro = gtk_check_button_new_with_label ("Microphone");
+ g_signal_connect (check_micro, "toggled",
+ G_CALLBACK (check_buttons_changed), NULL);
+ gtk_container_add (GTK_CONTAINER (box), check_micro);
+
+ button = gtk_button_new_with_label ("Ask!");
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (button_clicked), NULL);
+ gtk_container_add (GTK_CONTAINER (box), button);
+ gtk_widget_set_sensitive (GTK_WIDGET (button), FALSE);
+
+ label = gtk_label_new ("");
+ gtk_container_add (GTK_CONTAINER (box), label);
+
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check_headphones), TRUE);
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check_headset), TRUE);
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check_micro), TRUE);
+
+ gtk_widget_show_all (window);
+}
+
+int main (int argc, char **argv)
+{
+ gtk_init (&argc, &argv);
+
+ setup_ui ();
+ watch_gnome_shell ();
+
+ gtk_main ();
+
+ return 0;
+}
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