[mutter/wip/tablet-protocol-v2: 3/14] wayland: Add MetaWaylandTabletTool

[Carlos Garnacho <carlosg src gnome org>]

commit 39931cffbfc47310f5671432e9d64734558c4dd3
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Feb 4 18:19:08 2015 +0100

    wayland: Add MetaWaylandTabletTool
    
    This struct holds the server-side information of a wl_tablet_tool, which
    represents an specific tool of an specific tablet, and is unique as such.

 src/Makefile.am                        |    2 +
 src/wayland/meta-wayland-tablet-tool.c |  218 ++++++++++++++++++++++++++++++++
 src/wayland/meta-wayland-tablet-tool.h |   60 +++++++++
 src/wayland/meta-wayland-types.h       |    1 +
 4 files changed, 281 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 7d53c12..516e781 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -275,6 +275,8 @@ libmutter_la_SOURCES +=                             \
        wayland/meta-wayland-seat.h             \
        wayland/meta-wayland-tablet.c           \
        wayland/meta-wayland-tablet.h           \
+       wayland/meta-wayland-tablet-tool.c      \
+       wayland/meta-wayland-tablet-tool.h      \
        wayland/meta-wayland-touch.c            \
        wayland/meta-wayland-touch.h            \
        wayland/meta-wayland-surface.c          \
diff --git a/src/wayland/meta-wayland-tablet-tool.c b/src/wayland/meta-wayland-tablet-tool.c
new file mode 100644
index 0000000..2bb5086
--- /dev/null
+++ b/src/wayland/meta-wayland-tablet-tool.c
@@ -0,0 +1,218 @@
+/*
+ * 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 "wayland-tablet-server-protocol.h"
+#include "meta-wayland-private.h"
+#include "meta-wayland-tablet-tool.h"
+
+static void
+unbind_resource (struct wl_resource *resource)
+{
+  wl_list_remove (wl_resource_get_link (resource));
+}
+
+static guint32
+input_device_get_capabilities (ClutterInputDevice *device)
+{
+  ClutterInputAxis axis;
+  guint32 capabilities = 0, i;
+
+  for (i = 0; i < clutter_input_device_get_n_axes (device); i++)
+    {
+      axis = clutter_input_device_get_axis (device, i);
+
+      switch (axis)
+        {
+        case CLUTTER_INPUT_AXIS_PRESSURE:
+          capabilities |= WL_TABLET_TOOL_CAPABILITY_PRESSURE;
+          break;
+        case CLUTTER_INPUT_AXIS_DISTANCE:
+          capabilities |= WL_TABLET_TOOL_CAPABILITY_DISTANCE;
+          break;
+        case CLUTTER_INPUT_AXIS_XTILT:
+        case CLUTTER_INPUT_AXIS_YTILT:
+          capabilities |= WL_TABLET_TOOL_CAPABILITY_TILT;
+          break;
+        default:
+          break;
+        }
+    }
+
+  return capabilities;
+}
+
+static enum wl_tablet_tool_type
+input_device_tool_get_type (ClutterInputDeviceTool *device_tool)
+{
+  ClutterInputDeviceToolType tool_type;
+
+  tool_type = clutter_input_device_tool_get_tool_type (device_tool);
+
+  switch (tool_type)
+    {
+    case CLUTTER_INPUT_DEVICE_TOOL_NONE:
+    case CLUTTER_INPUT_DEVICE_TOOL_PEN:
+      return WL_TABLET_TOOL_TYPE_PEN;
+    case CLUTTER_INPUT_DEVICE_TOOL_ERASER:
+      return WL_TABLET_TOOL_TYPE_ERASER;
+    case CLUTTER_INPUT_DEVICE_TOOL_BRUSH:
+      return WL_TABLET_TOOL_TYPE_BRUSH;
+    case CLUTTER_INPUT_DEVICE_TOOL_PENCIL:
+      return WL_TABLET_TOOL_TYPE_PENCIL;
+    case CLUTTER_INPUT_DEVICE_TOOL_AIRBRUSH:
+      return WL_TABLET_TOOL_TYPE_AIRBRUSH;
+    case CLUTTER_INPUT_DEVICE_TOOL_FINGER:
+      return WL_TABLET_TOOL_TYPE_FINGER;
+    case CLUTTER_INPUT_DEVICE_TOOL_MOUSE:
+      return WL_TABLET_TOOL_TYPE_MOUSE;
+    case CLUTTER_INPUT_DEVICE_TOOL_LENS:
+      return WL_TABLET_TOOL_TYPE_LENS;
+    }
+
+  g_assert_not_reached ();
+  return 0;
+}
+
+MetaWaylandTabletTool *
+meta_wayland_tablet_tool_new (MetaWaylandTabletSeat  *seat,
+                              ClutterInputDevice     *device,
+                              ClutterInputDeviceTool *device_tool)
+{
+  MetaWaylandTabletTool *tool;
+
+  tool = g_slice_new0 (MetaWaylandTabletTool);
+  tool->seat = seat;
+  tool->device = device;
+  tool->device_tool = device_tool;
+  wl_list_init (&tool->resource_list);
+
+  return tool;
+}
+
+void
+meta_wayland_tablet_tool_free (MetaWaylandTabletTool *tool)
+{
+  struct wl_resource *resource, *next;
+
+  wl_resource_for_each_safe (resource, next, &tool->resource_list)
+    {
+      wl_tablet_tool_send_removed (resource);
+      wl_resource_destroy (resource);
+    }
+
+  g_slice_free (MetaWaylandTabletTool, tool);
+}
+
+static void
+tool_set_cursor (struct wl_client   *client,
+                 struct wl_resource *resource,
+                 uint32_t            serial,
+                 struct wl_resource *surface_resource,
+                 int32_t             hotspot_x,
+                 int32_t             hotspot_y,
+                 struct wl_resource *tablet_resource)
+{
+}
+
+static void
+tool_destroy (struct wl_client   *client,
+              struct wl_resource *resource)
+{
+  wl_resource_destroy (resource);
+}
+
+static const struct wl_tablet_tool_interface tool_interface = {
+  tool_set_cursor,
+  tool_destroy
+};
+
+static void
+meta_wayland_tablet_tool_notify_details (MetaWaylandTabletTool *tool,
+                                         struct wl_resource    *resource)
+{
+  guint64 serial;
+
+  wl_tablet_tool_send_type (resource,
+                            input_device_tool_get_type (tool->device_tool));
+
+  serial = (guint64) clutter_input_device_tool_get_serial (tool->device_tool);
+  wl_tablet_tool_send_serial_id (resource, (uint32_t) (serial >> 32),
+                                 (uint32_t) (serial & G_MAXUINT32));
+
+  wl_tablet_tool_send_capability (resource,
+                                  input_device_get_capabilities (tool->device));
+
+  /* FIXME: wl_tablet_tool.hardware_id missing */
+
+  wl_tablet_tool_send_done (resource);
+}
+
+struct wl_resource *
+meta_wayland_tablet_tool_create_new_resource (MetaWaylandTabletTool *tool,
+                                              struct wl_client      *client,
+                                              struct wl_resource    *seat_resource,
+                                              uint32_t               id)
+{
+  struct wl_resource *resource;
+
+  resource = wl_resource_create (client, &wl_tablet_tool_interface,
+                                 wl_resource_get_version (seat_resource), id);
+  wl_resource_set_implementation (resource, &tool_interface,
+                                  tool, unbind_resource);
+  wl_resource_set_user_data (resource, tool);
+  wl_list_insert (&tool->resource_list, wl_resource_get_link (resource));
+
+  meta_wayland_tablet_tool_notify_details (tool, resource);
+
+  return resource;
+}
+
+struct wl_resource *
+meta_wayland_tablet_tool_lookup_resource (MetaWaylandTabletTool *tool,
+                                          struct wl_client      *client)
+{
+  if (wl_list_empty (&tool->resource_list))
+    return NULL;
+
+  return wl_resource_find_for_client (&tool->resource_list, client);
+}
+
+void
+meta_wayland_tablet_tool_update (MetaWaylandTabletTool *tool,
+                                 const ClutterEvent    *event)
+{
+}
+
+gboolean
+meta_wayland_tablet_tool_handle_event (MetaWaylandTabletTool *tool,
+                                       const ClutterEvent    *event)
+{
+  return CLUTTER_EVENT_STOP;
+}
diff --git a/src/wayland/meta-wayland-tablet-tool.h b/src/wayland/meta-wayland-tablet-tool.h
new file mode 100644
index 0000000..d02f9f3
--- /dev/null
+++ b/src/wayland/meta-wayland-tablet-tool.h
@@ -0,0 +1,60 @@
+/*
+ * 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_TOOL_H
+#define META_WAYLAND_TABLET_TOOL_H
+
+#include <wayland-server.h>
+
+#include <glib.h>
+
+#include "wayland-tablet-server-protocol.h"
+#include "meta-wayland-types.h"
+#include "meta-cursor-renderer.h"
+
+struct _MetaWaylandTabletTool
+{
+  MetaWaylandTabletSeat *seat;
+  ClutterInputDevice *device;
+  ClutterInputDeviceTool *device_tool;
+  struct wl_list resource_list;
+};
+
+MetaWaylandTabletTool * meta_wayland_tablet_tool_new  (MetaWaylandTabletSeat  *seat,
+                                                       ClutterInputDevice     *device,
+                                                       ClutterInputDeviceTool *device_tool);
+void                    meta_wayland_tablet_tool_free (MetaWaylandTabletTool  *tool);
+
+struct wl_resource *
+         meta_wayland_tablet_tool_create_new_resource (MetaWaylandTabletTool  *tool,
+                                                       struct wl_client       *client,
+                                                       struct wl_resource     *seat_resource,
+                                                       uint32_t                id);
+struct wl_resource *
+         meta_wayland_tablet_tool_lookup_resource     (MetaWaylandTabletTool  *tool,
+                                                       struct wl_client       *client);
+
+void     meta_wayland_tablet_tool_update              (MetaWaylandTabletTool  *tool,
+                                                       const ClutterEvent     *event);
+gboolean meta_wayland_tablet_tool_handle_event        (MetaWaylandTabletTool  *tool,
+                                                       const ClutterEvent     *event);
+
+#endif /* META_WAYLAND_TABLET_TOOL_H */
diff --git a/src/wayland/meta-wayland-types.h b/src/wayland/meta-wayland-types.h
index 3a65eff..d20c147 100644
--- a/src/wayland/meta-wayland-types.h
+++ b/src/wayland/meta-wayland-types.h
@@ -35,6 +35,7 @@ typedef struct _MetaWaylandDataOffer MetaWaylandDataOffer;
 typedef struct _MetaWaylandDataDevice MetaWaylandDataDevice;
 
 typedef struct _MetaWaylandTabletSeat MetaWaylandTabletSeat;
+typedef struct _MetaWaylandTabletTool MetaWaylandTabletTool;
 typedef struct _MetaWaylandTablet MetaWaylandTablet;
 
 typedef struct _MetaWaylandBuffer MetaWaylandBuffer;