wayland: Add MetaWaylandTablet

This (very basic at the moment) struct keeps server-side information
for wl_tablet resources.

src/Makefile.am

@@ -294,6 +294,8 @@ libmutter_la_SOURCES +=				\
 	wayland/meta-wayland-popup.h		\
 	wayland/meta-wayland-seat.c		\
 	wayland/meta-wayland-seat.h		\
+	wayland/meta-wayland-tablet.c		\
+	wayland/meta-wayland-tablet.h		\
 	wayland/meta-wayland-touch.c		\
 	wayland/meta-wayland-touch.h		\
 	wayland/meta-wayland-surface.c		\

src/wayland/meta-wayland-tablet.c

@@ -0,0 +1,130 @@
+/*
+ * 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 <wayland-server.h>
+#include "tablet-unstable-v1-server-protocol.h"
+
+#include "meta-surface-actor-wayland.h"
+#include "meta-wayland-private.h"
+#include "meta-wayland-tablet.h"
+
+static void
+unbind_resource (struct wl_resource *resource)
+{
+  wl_list_remove (wl_resource_get_link (resource));
+}
+
+MetaWaylandTablet *
+meta_wayland_tablet_new (ClutterInputDevice    *device,
+                         MetaWaylandTabletSeat *tablet_seat)
+{
+  MetaWaylandTablet *tablet;
+
+  tablet = g_slice_new0 (MetaWaylandTablet);
+  wl_list_init (&tablet->resource_list);
+  wl_list_init (&tablet->focus_resource_list);
+  tablet->device = device;
+  tablet->tablet_seat = tablet_seat;
+
+  return tablet;
+}
+
+void
+meta_wayland_tablet_free (MetaWaylandTablet *tablet)
+{
+  struct wl_resource *resource, *next;
+
+  wl_resource_for_each_safe (resource, next, &tablet->resource_list)
+    {
+      zwp_tablet_v1_send_removed (resource);
+    }
+
+  g_slice_free (MetaWaylandTablet, tablet);
+}
+
+static void
+tablet_destroy (struct wl_client   *client,
+                struct wl_resource *resource)
+{
+  wl_resource_destroy (resource);
+}
+
+static const struct zwp_tablet_v1_interface tablet_interface = {
+  tablet_destroy
+};
+
+void
+meta_wayland_tablet_notify (MetaWaylandTablet  *tablet,
+                            struct wl_resource *resource)
+{
+  ClutterInputDevice *device = tablet->device;
+  guint vid, pid;
+
+  zwp_tablet_v1_send_name (resource, clutter_input_device_get_device_name (device));
+
+  if (sscanf (clutter_input_device_get_vendor_id (device), "%x", &vid) == 1 &&
+      sscanf (clutter_input_device_get_product_id (device), "%x", &pid) == 1)
+    zwp_tablet_v1_send_id (resource, vid, pid);
+
+  /* FIXME: zwp_tablet_v1.path missing */
+
+  zwp_tablet_v1_send_done (resource);
+}
+
+struct wl_resource *
+meta_wayland_tablet_create_new_resource (MetaWaylandTablet  *tablet,
+                                         struct wl_client   *client,
+                                         struct wl_resource *seat_resource,
+                                         uint32_t            id)
+{
+  struct wl_resource *resource;
+
+  resource = wl_resource_create (client, &zwp_tablet_v1_interface,
+                                 wl_resource_get_version (seat_resource), id);
+  wl_resource_set_implementation (resource, &tablet_interface,
+                                  tablet, unbind_resource);
+  wl_resource_set_user_data (resource, tablet);
+  wl_list_insert (&tablet->resource_list, wl_resource_get_link (resource));
+
+  return resource;
+}
+
+struct wl_resource *
+meta_wayland_tablet_lookup_resource (MetaWaylandTablet *tablet,
+                                     struct wl_client  *client)
+{
+  struct wl_resource *resource;
+
+  resource = wl_resource_find_for_client (&tablet->resource_list, client);
+
+  if (!resource)
+    resource = wl_resource_find_for_client (&tablet->focus_resource_list, client);
+
+  return resource;
+}

src/wayland/meta-wayland-tablet.h

@@ -0,0 +1,59 @@
+/*
+ * 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_TABLET_H
+#define META_WAYLAND_TABLET_H
+
+#include <wayland-server.h>
+
+#include <glib.h>
+
+#include "meta-wayland-types.h"
+#include "meta-cursor-renderer.h"
+
+struct _MetaWaylandTablet
+{
+  MetaWaylandTabletSeat *tablet_seat;
+  ClutterInputDevice *device;
+
+  struct wl_list resource_list;
+  struct wl_list focus_resource_list;
+
+  MetaWaylandSurface *current;
+};
+
+MetaWaylandTablet * meta_wayland_tablet_new          (ClutterInputDevice       *device,
+                                                      MetaWaylandTabletSeat    *tablet_seat);
+void                meta_wayland_tablet_free         (MetaWaylandTablet        *tablet);
+
+struct wl_resource *
+             meta_wayland_tablet_create_new_resource (MetaWaylandTablet  *tablet,
+                                                      struct wl_client   *client,
+                                                      struct wl_resource *seat_resource,
+                                                      uint32_t            id);
+struct wl_resource *
+             meta_wayland_tablet_lookup_resource     (MetaWaylandTablet  *tablet,
+                                                      struct wl_client   *client);
+
+void         meta_wayland_tablet_notify              (MetaWaylandTablet  *tablet,
+                                                      struct wl_resource *resource);
+
+#endif /* META_WAYLAND_TABLET_H */

src/wayland/meta-wayland-types.h

@@ -36,6 +36,9 @@ typedef struct _MetaWaylandDragDestFuncs MetaWaylandDragDestFuncs;
 typedef struct _MetaWaylandDataOffer MetaWaylandDataOffer;
 typedef struct _MetaWaylandDataDevice MetaWaylandDataDevice;
 
+typedef struct _MetaWaylandTabletSeat MetaWaylandTabletSeat;
+typedef struct _MetaWaylandTablet MetaWaylandTablet;
+
 typedef struct _MetaWaylandBuffer MetaWaylandBuffer;
 typedef struct _MetaWaylandRegion MetaWaylandRegion;