wayland: Implement wl_pointer_gestures

The global wl_pointer_gestures object is now created, effectively
bridging pinch/swipe gestures with clients, so they're now
accessible to clients implementing the protocol.

src/Makefile.am

@@ -255,6 +255,8 @@ libmutter_la_SOURCES +=				\
 	wayland/meta-wayland-data-device.c      \
 	wayland/meta-wayland-data-device.h      \
 	wayland/meta-wayland-data-device-private.h	\
+	wayland/meta-wayland-pointer-gestures.c	\
+	wayland/meta-wayland-pointer-gestures.h	\
 	wayland/meta-wayland-pointer-gesture-swipe.c	\
 	wayland/meta-wayland-pointer-gesture-swipe.h	\
 	wayland/meta-wayland-pointer-gesture-pinch.c	\

src/wayland/meta-wayland-pointer-gestures.c

@@ -0,0 +1,82 @@
+/*
+ * Wayland Support
+ *
+ * Copyright (C) 2015 Red Hat
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Author: Carlos Garnacho <carlosg@gnome.org>
+ */
+
+#define _GNU_SOURCE
+
+#include "config.h"
+
+#include <glib.h>
+#include "meta-wayland-pointer-gestures.h"
+#include "pointer-gestures-server-protocol.h"
+#include "meta-wayland-versions.h"
+#include "meta-wayland-private.h"
+
+static void
+gestures_get_swipe (struct wl_client   *client,
+                    struct wl_resource *resource,
+                    uint32_t            id,
+                    struct wl_resource *pointer_resource)
+{
+  MetaWaylandPointer *pointer = wl_resource_get_user_data (pointer_resource);
+
+  meta_wayland_pointer_gesture_swipe_create_new_resource (pointer, client, resource, id);
+}
+
+static void
+gestures_get_pinch (struct wl_client   *client,
+                    struct wl_resource *resource,
+                    uint32_t            id,
+                    struct wl_resource *pointer_resource)
+{
+  MetaWaylandPointer *pointer = wl_resource_get_user_data (pointer_resource);
+
+  meta_wayland_pointer_gesture_pinch_create_new_resource (pointer, client, resource, id);
+}
+
+static const struct _wl_pointer_gestures_interface pointer_gestures_interface = {
+  gestures_get_swipe,
+  gestures_get_pinch
+};
+
+static void
+bind_pointer_gestures (struct wl_client *client,
+                       void             *data,
+                       guint32           version,
+                       guint32           id)
+{
+  MetaWaylandPointerGestures *gestures = data;
+  struct wl_resource *resource;
+
+  resource = wl_resource_create (client, &_wl_pointer_gestures_interface, version, id);
+  wl_resource_set_implementation (resource, &pointer_gestures_interface,
+                                  gestures, NULL);
+}
+
+void
+meta_wayland_pointer_gestures_init (MetaWaylandCompositor *compositor)
+{
+  wl_global_create (compositor->wayland_display,
+                    &_wl_pointer_gestures_interface,
+                    META_WL_POINTER_GESTURES_VERSION,
+                    gestures, bind_pointer_gestures);
+}

src/wayland/meta-wayland-pointer-gestures.h

@@ -0,0 +1,32 @@
+/*
+ * Wayland Support
+ *
+ * Copyright (C) 2015 Red Hat
+ *
+ * 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 License, 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Carlos Garnacho <carlosg@gnome.org>
+ */
+
+#ifndef META_WAYLAND_POINTER_GESTURES_H
+#define META_WAYLAND_POINTER_GESTURES_H
+
+#include <wayland-server.h>
+#include <glib.h>
+
+#include "meta-wayland-types.h"
+
+void meta_wayland_pointer_gestures_init (MetaWaylandCompositor *compositor);
+
+#endif /* META_WAYLAND_POINTER_GESTURES_H */

src/wayland/meta-wayland-private.h

@@ -32,6 +32,7 @@
 #include "meta-wayland-versions.h"
 #include "meta-wayland-surface.h"
 #include "meta-wayland-seat.h"
+#include "meta-wayland-pointer-gestures.h"
 
 typedef struct _MetaXWaylandSelection MetaXWaylandSelection;
 

src/wayland/meta-wayland-versions.h

@@ -44,5 +44,6 @@
 #define META_XSERVER_VERSION                1
 #define META_GTK_SHELL_VERSION              2
 #define META_WL_SUBCOMPOSITOR_VERSION       1
+#define META_WL_POINTER_GESTURES_VERSION    1
 
 #endif

src/wayland/meta-wayland.c

@@ -310,6 +310,7 @@ meta_wayland_init (void)
   meta_wayland_outputs_init (compositor);
   meta_wayland_data_device_manager_init (compositor);
   meta_wayland_shell_init (compositor);
+  meta_wayland_pointer_gestures_init (compositor);
   meta_wayland_seat_init (compositor);
 
   compositor->display_name = wl_display_add_socket_auto (compositor->wayland_display);