Added missing files for HUD awareness support.

Change-Id: If3544734e8c4a1c632a24976e9340ef84869d22a

vcl/inc/unx/gtk/hudawareness.h

+/*
+ * Copyright © 2012 Canonical Ltd.
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence, or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ *
+ * Author: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#ifndef _hudawareness_h_
+#define _hudawareness_h_
+
+#include <gio/gio.h>
+
+G_BEGIN_DECLS
+
+typedef void         (* HudAwarenessCallback)                           (gboolean               hud_active,
+                                                                         gpointer               user_data);
+
+
+guint                   hud_awareness_register                          (GDBusConnection       *connection,
+                                                                         const gchar           *object_path,
+                                                                         HudAwarenessCallback   callback,
+                                                                         gpointer               user_data,
+                                                                         GDestroyNotify         notify,
+                                                                         GError               **error);
+
+void                    hud_awareness_unregister                        (GDBusConnection       *connection,
+                                                                         guint                  awareness_id);
+
+G_END_DECLS
+
+#endif /* _hudawareness_h_ */

vcl/unx/gtk/window/hudawareness.cxx

+/*
+ * Copyright © 2012 Canonical Ltd.
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence, or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ *
+ * Author: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#include <unx/gtk/hudawareness.h>
+
+typedef struct
+{
+  GDBusConnection *connection;
+  HudAwarenessCallback callback;
+  gpointer user_data;
+  GDestroyNotify notify;
+} HudAwarenessHandle;
+
+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 = (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, NULL);
+}
+
+static void
+hud_awareness_handle_free (gpointer data)
+{
+  HudAwarenessHandle *handle = (HudAwarenessHandle*) data;
+
+  g_object_unref (handle->connection);
+
+  if (handle->notify)
+    (* handle->notify) (handle->user_data);
+
+  g_slice_free (HudAwarenessHandle, handle);
+}
+
+guint
+hud_awareness_register (GDBusConnection       *connection,
+                        const gchar           *object_path,
+                        HudAwarenessCallback   callback,
+                        gpointer               user_data,
+                        GDestroyNotify         notify,
+                        GError               **error)
+{
+  static GDBusInterfaceInfo *iface;
+  GDBusInterfaceVTable vtable = {
+    hud_awareness_method_call
+  };
+  HudAwarenessHandle *handle;
+  guint object_id;
+
+  if G_UNLIKELY (iface == NULL)
+    {
+      GError *error = NULL;
+      GDBusNodeInfo *info;
+
+      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>",
+                                           &error);
+      g_assert_no_error (error);
+      iface = g_dbus_node_info_lookup_interface (info, "com.canonical.hud.Awareness");
+      g_assert (iface != NULL);
+    }
+
+  handle = g_slice_new (HudAwarenessHandle);
+
+  object_id = g_dbus_connection_register_object (connection, object_path, iface, &vtable, handle, NULL, error);
+
+  if (object_id == 0)
+    {
+      g_slice_free (HudAwarenessHandle, handle);
+      return 0;
+    }
+
+  handle->connection = (GDBusConnection*) 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);
+}

vcl/unx/gtk3/window/gtk3hudawareness.cxx

+#include "../../gtk/window/hudawareness.cxx"