1 files changed, 110 insertions, 0 deletions
diff --git a/vcl/unx/gtk3/hudawareness.cxx b/vcl/unx/gtk3/hudawareness.cxx
new file mode 100644
index 000000000..ebcbaf747
--- /dev/null
+++ b/vcl/unx/gtk3/hudawareness.cxx
@@ -0,0 +1,110 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <string.h>
+
+#include <unx/gtk/hudawareness.h>
+
+namespace {
+
+struct HudAwarenessHandle
+{
+  gpointer connection;
+  HudAwarenessCallback callback;
+  gpointer user_data;
+  GDestroyNotify notify;
+};
+
+}
+
+static void
+hud_awareness_method_call (GDBusConnection       * /* connection */,
+                           const gchar           * /* sender */,
+                           const gchar           * /* object_path */,
+                           const gchar           * /* interface_name */,
+                           const gchar           *method_name,
+                           GVariant              *parameters,
+                           GDBusMethodInvocation *invocation,
+                           gpointer               user_data)
+{
+  HudAwarenessHandle *handle = static_cast<HudAwarenessHandle*>(user_data);
+
+  if (g_str_equal (method_name, "HudActiveChanged"))
+  {
+      gboolean active;
+
+      g_variant_get (parameters, "(b)", &active);
+
+      (* handle->callback) (active, handle->user_data);
+  }
+
+  g_dbus_method_invocation_return_value (invocation, nullptr);
+}
+
+guint
+hud_awareness_register (GDBusConnection       *connection,
+                        const gchar           *object_path,
+                        HudAwarenessCallback   callback,
+                        gpointer               user_data,
+                        GDestroyNotify         notify,
+                        GError               **error)
+{
+  static GDBusInterfaceInfo *iface;
+  static GDBusNodeInfo *info;
+  GDBusInterfaceVTable vtable;
+  HudAwarenessHandle *handle;
+  guint object_id;
+
+  memset (static_cast<void *>(&vtable), 0, sizeof (vtable));
+  vtable.method_call = hud_awareness_method_call;
+
+  if G_UNLIKELY (iface == nullptr)
+  {
+      GError *local_error = nullptr;
+
+      info = g_dbus_node_info_new_for_xml ("<node>"
+                                             "<interface name='com.canonical.hud.Awareness'>"
+                                               "<method name='CheckAwareness'/>"
+                                               "<method name='HudActiveChanged'>"
+                                                 "<arg type='b'/>"
+                                               "</method>"
+                                             "</interface>"
+                                           "</node>",
+                                           &local_error);
+      g_assert_no_error (local_error);
+      iface = g_dbus_node_info_lookup_interface (info, "com.canonical.hud.Awareness");
+      g_assert (iface != nullptr);
+  }
+
+  handle = static_cast<HudAwarenessHandle*>(g_malloc (sizeof (HudAwarenessHandle)));
+
+  object_id = g_dbus_connection_register_object (connection, object_path, iface, &vtable, handle, &g_free, error);
+
+  if (object_id == 0)
+  {
+      g_free (handle);
+      return 0;
+  }
+
+  handle->connection = g_object_ref(connection);
+  handle->callback = callback;
+  handle->user_data = user_data;
+  handle->notify = notify;
+
+  return object_id;
+}
+
+void
+hud_awareness_unregister (GDBusConnection *connection,
+                          guint            subscription_id)
+{
+  g_dbus_connection_unregister_object (connection, subscription_id);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */