Adding upstream version 43.0.upstream/43.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 295 insertions, 0 deletions

diff --git a/plugins/common/daemon-skeleton-gtk.h b/plugins/common/daemon-skeleton-gtk.h
new file mode 100644
index 0000000..4e67706
--- /dev/null
+++ b/plugins/common/daemon-skeleton-gtk.h
@@ -0,0 +1,295 @@
+/**
+ * Create a gnome-settings-daemon helper easily
+ *
+ * #define NEW gsd_media_keys_manager_new
+ * #define START gsd_media_keys_manager_start
+ * #define MANAGER GsdMediaKeysManager
+ * #include "gsd-media-keys-manager.h"
+ *
+ * #include "daemon-skeleton-gtk.h"
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <locale.h>
+
+#include <glib-unix.h>
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+#include "gnome-settings-bus.h"
+
+#ifndef PLUGIN_NAME
+#error Include PLUGIN_CFLAGS in the daemon s CFLAGS
+#endif /* !PLUGIN_NAME */
+
+#define GNOME_SESSION_DBUS_NAME                     "org.gnome.SessionManager"
+#define GNOME_SESSION_CLIENT_PRIVATE_DBUS_INTERFACE "org.gnome.SessionManager.ClientPrivate"
+
+static MANAGER *manager = NULL;
+static int timeout = -1;
+static char *dummy_name = NULL;
+static gboolean verbose = FALSE;
+
+static GOptionEntry entries[] = {
+        { "exit-time", 0, 0, G_OPTION_ARG_INT, &timeout, "Exit after n seconds time", NULL },
+        { "dummy-name", 0, 0, G_OPTION_ARG_STRING, &dummy_name, "Name when using the dummy daemon", NULL },
+        { "verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose, "Verbose", NULL },
+        {NULL}
+};
+
+static void
+respond_to_end_session (GDBusProxy *proxy)
+{
+        /* we must answer with "EndSessionResponse" */
+        g_dbus_proxy_call (proxy, "EndSessionResponse",
+                           g_variant_new ("(bs)", TRUE, ""),
+                           G_DBUS_CALL_FLAGS_NONE,
+                           -1, NULL, NULL, NULL);
+}
+
+static void
+do_stop (void)
+{
+        gtk_main_quit ();
+}
+
+static void
+client_proxy_signal_cb (GDBusProxy *proxy,
+                        gchar *sender_name,
+                        gchar *signal_name,
+                        GVariant *parameters,
+                        gpointer user_data)
+{
+        if (g_strcmp0 (signal_name, "QueryEndSession") == 0) {
+                g_debug ("Got QueryEndSession signal");
+                respond_to_end_session (proxy);
+        } else if (g_strcmp0 (signal_name, "EndSession") == 0) {
+                g_debug ("Got EndSession signal");
+                respond_to_end_session (proxy);
+        } else if (g_strcmp0 (signal_name, "Stop") == 0) {
+                g_debug ("Got Stop signal");
+                do_stop ();
+        }
+}
+
+static void
+on_client_registered (GObject             *source_object,
+                      GAsyncResult        *res,
+                      gpointer             user_data)
+{
+        GVariant *variant;
+        GDBusProxy *client_proxy;
+        GError *error = NULL;
+        gchar *object_path = NULL;
+
+        variant = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object), res, &error);
+        if (!variant) {
+                g_warning ("Unable to register client: %s", error->message);
+                g_error_free (error);
+                return;
+        }
+
+        g_variant_get (variant, "(o)", &object_path);
+
+        g_debug ("Registered client at path %s", object_path);
+
+        client_proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION, 0, NULL,
+                                                      GNOME_SESSION_DBUS_NAME,
+                                                      object_path,
+                                                      GNOME_SESSION_CLIENT_PRIVATE_DBUS_INTERFACE,
+                                                      NULL,
+                                                      &error);
+        if (!client_proxy) {
+                g_warning ("Unable to get the session client proxy: %s", error->message);
+                g_error_free (error);
+                return;
+        }
+
+        g_signal_connect (client_proxy, "g-signal",
+                          G_CALLBACK (client_proxy_signal_cb), NULL);
+
+        g_free (object_path);
+        g_variant_unref (variant);
+}
+
+static void
+register_with_gnome_session (void)
+{
+	GDBusProxy *proxy;
+	const char *startup_id;
+
+	proxy = G_DBUS_PROXY (gnome_settings_bus_get_session_proxy ());
+	startup_id = g_getenv ("DESKTOP_AUTOSTART_ID");
+	g_dbus_proxy_call (proxy,
+			   "RegisterClient",
+			   g_variant_new ("(ss)", dummy_name ? dummy_name : PLUGIN_NAME, startup_id ? startup_id : ""),
+			   G_DBUS_CALL_FLAGS_NONE,
+			   -1,
+			   NULL,
+			   (GAsyncReadyCallback) on_client_registered,
+			   NULL);
+
+	/* DESKTOP_AUTOSTART_ID must not leak into child processes, because
+	 * it can't be reused. Child processes will not know whether this is
+	 * a genuine value or erroneous already-used value. */
+	g_unsetenv ("DESKTOP_AUTOSTART_ID");
+}
+
+static void
+set_empty_gtk_theme (gboolean set)
+{
+	static char *old_gtk_theme = NULL;
+
+	if (set) {
+		/* Override GTK_THEME to reduce overhead of CSS engine. By using
+		 * GTK_THEME environment variable, GtkSettings is not allowed to
+		 * initially parse the Adwaita theme.
+		 *
+		 * https://bugzilla.gnome.org/show_bug.cgi?id=780555 */
+		old_gtk_theme = g_strdup (g_getenv ("GTK_THEME"));
+		g_setenv ("GTK_THEME", "Disabled", TRUE);
+	} else {
+		/* GtkSettings has loaded, so we can drop GTK_THEME used to initialize
+		 * our internal theme. Only the main thread accesses the GTK_THEME
+		 * environment variable, so this is safe to release. */
+		if (old_gtk_theme != NULL)
+			g_setenv ("GTK_THEME", old_gtk_theme, TRUE);
+		else
+			g_unsetenv ("GTK_THEME");
+	}
+}
+
+static gboolean
+handle_sigterm (gpointer user_data)
+{
+  g_debug ("Got SIGTERM; shutting down ...");
+
+  if (gtk_main_level () > 0)
+    gtk_main_quit ();
+
+  return G_SOURCE_REMOVE;
+}
+
+static void
+install_signal_handler (void)
+{
+  g_autoptr(GSource) source = NULL;
+
+  source = g_unix_signal_source_new (SIGTERM);
+
+  g_source_set_callback (source, handle_sigterm, NULL, NULL);
+  g_source_attach (source, NULL);
+}
+
+static void
+bus_acquired_cb (GDBusConnection *connection,
+                 const gchar *name,
+                 gpointer user_data G_GNUC_UNUSED)
+{
+        g_debug ("%s: acquired bus %p for name %s", G_STRFUNC, connection, name);
+}
+
+static void
+name_acquired_cb (GDBusConnection *connection,
+                  const gchar *name,
+                  gpointer user_data G_GNUC_UNUSED)
+{
+        g_debug ("%s: acquired name %s on bus %p", G_STRFUNC, name, connection);
+}
+
+static void
+name_lost_cb (GDBusConnection *connection,
+              const gchar *name,
+              gpointer user_data G_GNUC_UNUSED)
+{
+        g_debug ("%s: lost name %s on bus %p", G_STRFUNC, name, connection);
+}
+
+int
+main (int argc, char **argv)
+{
+        GError  *error = NULL;
+        guint name_own_id;
+
+        bindtextdomain (GETTEXT_PACKAGE, GNOME_SETTINGS_LOCALEDIR);
+        bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+        textdomain (GETTEXT_PACKAGE);
+        setlocale (LC_ALL, "");
+
+        set_empty_gtk_theme (TRUE);
+
+#ifdef GDK_BACKEND
+	{
+		const gchar *setup_display = getenv ("GNOME_SETUP_DISPLAY");
+		if (setup_display && *setup_display != '\0')
+			g_setenv ("DISPLAY", setup_display, TRUE);
+	}
+
+        gdk_set_allowed_backends (GDK_BACKEND);
+
+        /* GDK would fail to initialize with e.g. GDK_BACKEND=wayland */
+        g_unsetenv ("GDK_BACKEND");
+#endif
+
+        error = NULL;
+        if (! gtk_init_with_args (&argc, &argv, PLUGIN_NAME, entries, NULL, &error)) {
+                if (error != NULL) {
+                        fprintf (stderr, "%s\n", error->message);
+                        g_error_free (error);
+                }
+                exit (1);
+        }
+
+        set_empty_gtk_theme (FALSE);
+
+        if (verbose) {
+                g_setenv ("G_MESSAGES_DEBUG", "all", TRUE);
+                /* Work around GLib not flushing the output for us by explicitly
+                 * setting buffering to a sane behaviour. This is important
+                 * during testing when the output is not going to a TTY and
+                 * we are reading messages from g_debug on stdout.
+                 *
+                 * See also
+                 *  https://bugzilla.gnome.org/show_bug.cgi?id=792432
+                 */
+                setlinebuf (stdout);
+        }
+
+	if (timeout > 0) {
+		guint id;
+		id = g_timeout_add_seconds (timeout, (GSourceFunc) gtk_main_quit, NULL);
+		g_source_set_name_by_id (id, "[gnome-settings-daemon] gtk_main_quit");
+	}
+
+        install_signal_handler ();
+
+        manager = NEW ();
+	register_with_gnome_session ();
+
+        if (!START (manager, &error)) {
+                fprintf (stderr, "Failed to start: %s\n", error->message);
+                g_error_free (error);
+                exit (1);
+        }
+
+	name_own_id = g_bus_own_name (G_BUS_TYPE_SESSION,
+				      PLUGIN_DBUS_NAME,
+				      G_BUS_NAME_OWNER_FLAGS_DO_NOT_QUEUE,
+				      bus_acquired_cb,
+				      name_acquired_cb,
+				      name_lost_cb,
+				      NULL, /* user_data */
+				      NULL /* user_data_free_func */);
+
+        gtk_main ();
+
+        STOP (manager);
+
+        g_object_unref (manager);
+        g_bus_unown_name (name_own_id);
+
+        return 0;
+}