winewayland.drv: Add initial stub for wl_pointer handling.

dlls/winewayland.drv/Makefile.in

@@ -9,6 +9,7 @@ SOURCES = \
 	version.rc \
 	wayland.c \
 	wayland_output.c \
+	wayland_pointer.c \
 	wayland_surface.c \
 	waylanddrv_main.c \
 	window.c \

dlls/winewayland.drv/wayland.c

@@ -54,6 +54,29 @@ static const struct xdg_wm_base_listener xdg_wm_base_listener =
 };
 
 /**********************************************************************
+ *          wl_seat handling
+ */
+
+static void wl_seat_handle_capabilities(void *data, struct wl_seat *seat,
+                                        enum wl_seat_capability caps)
+{
+    if ((caps & WL_SEAT_CAPABILITY_POINTER) && !process_wayland.wl_pointer)
+        wayland_pointer_init(wl_seat_get_pointer(seat));
+    else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && process_wayland.wl_pointer)
+        wayland_pointer_deinit();
+}
+
+static void wl_seat_handle_name(void *data, struct wl_seat *seat, const char *name)
+{
+}
+
+static const struct wl_seat_listener seat_listener =
+{
+    wl_seat_handle_capabilities,
+    wl_seat_handle_name
+};
+
+/**********************************************************************
  *          Registry handling
  */
 
@@ -98,6 +121,17 @@ static void registry_handle_global(void *data, struct wl_registry *registry,
     {
         process_wayland.wl_shm = wl_registry_bind(registry, id, &wl_shm_interface, 1);
     }
+    else if (strcmp(interface, "wl_seat") == 0)
+    {
+        if (process_wayland.wl_seat)
+        {
+            WARN("Only a single seat is currently supported, ignoring additional seats.\n");
+            return;
+        }
+        process_wayland.wl_seat = wl_registry_bind(registry, id, &wl_seat_interface,
+                                                   version < 5 ? version : 5);
+        wl_seat_add_listener(process_wayland.wl_seat, &seat_listener, NULL);
+    }
 }
 
 static void registry_handle_global_remove(void *data, struct wl_registry *registry,
@@ -116,6 +150,15 @@ static void registry_handle_global_remove(void *data, struct wl_registry *regist
             return;
         }
     }
+
+    if (process_wayland.wl_seat &&
+        wl_proxy_get_id((struct wl_proxy *)process_wayland.wl_seat) == id)
+    {
+        TRACE("removing seat\n");
+        if (process_wayland.wl_pointer) wayland_pointer_deinit();
+        wl_seat_release(process_wayland.wl_seat);
+        process_wayland.wl_seat = NULL;
+    }
 }
 
 static const struct wl_registry_listener registry_listener = {

dlls/winewayland.drv/wayland_pointer.c

+/*
+ * Wayland pointer handling
+ *
+ * Copyright (c) 2020 Alexandros Frantzis for Collabora 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 2.1 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#if 0
+#pragma makedep unix
+#endif
+
+#include "config.h"
+
+#include "waylanddrv.h"
+
+static void pointer_handle_motion(void *data, struct wl_pointer *wl_pointer,
+                                  uint32_t time, wl_fixed_t sx, wl_fixed_t sy)
+{
+}
+
+static void pointer_handle_enter(void *data, struct wl_pointer *wl_pointer,
+                                 uint32_t serial, struct wl_surface *wl_surface,
+                                 wl_fixed_t sx, wl_fixed_t sy)
+{
+}
+
+static void pointer_handle_leave(void *data, struct wl_pointer *wl_pointer,
+                                 uint32_t serial, struct wl_surface *wl_surface)
+{
+}
+
+static void pointer_handle_button(void *data, struct wl_pointer *wl_pointer,
+                                  uint32_t serial, uint32_t time, uint32_t button,
+                                  uint32_t state)
+{
+}
+
+static void pointer_handle_axis(void *data, struct wl_pointer *wl_pointer,
+                                uint32_t time, uint32_t axis, wl_fixed_t value)
+{
+}
+
+static void pointer_handle_frame(void *data, struct wl_pointer *wl_pointer)
+{
+}
+
+static void pointer_handle_axis_source(void *data, struct wl_pointer *wl_pointer,
+                                       uint32_t axis_source)
+{
+}
+
+static void pointer_handle_axis_stop(void *data, struct wl_pointer *wl_pointer,
+                                     uint32_t time, uint32_t axis)
+{
+}
+
+static void pointer_handle_axis_discrete(void *data, struct wl_pointer *wl_pointer,
+                                         uint32_t axis, int32_t discrete)
+{
+}
+
+static const struct wl_pointer_listener pointer_listener =
+{
+    pointer_handle_enter,
+    pointer_handle_leave,
+    pointer_handle_motion,
+    pointer_handle_button,
+    pointer_handle_axis,
+    pointer_handle_frame,
+    pointer_handle_axis_source,
+    pointer_handle_axis_stop,
+    pointer_handle_axis_discrete
+};
+
+void wayland_pointer_init(struct wl_pointer *wl_pointer)
+{
+    process_wayland.wl_pointer = wl_pointer;
+    wl_pointer_add_listener(process_wayland.wl_pointer, &pointer_listener, NULL);
+}
+
+void wayland_pointer_deinit(void)
+{
+    wl_pointer_release(process_wayland.wl_pointer);
+    process_wayland.wl_pointer = NULL;
+}

dlls/winewayland.drv/waylanddrv.h

@@ -66,6 +66,8 @@ struct wayland
     struct wl_compositor *wl_compositor;
     struct xdg_wm_base *xdg_wm_base;
     struct wl_shm *wl_shm;
+    struct wl_seat *wl_seat;
+    struct wl_pointer *wl_pointer;
     struct wl_list output_list;
     /* Protects the output_list and the wayland_output.current states. */
     pthread_mutex_t output_mutex;
@@ -168,6 +170,13 @@ void wayland_window_surface_update_wayland_surface(struct window_surface *surfac
 void wayland_window_flush(HWND hwnd) DECLSPEC_HIDDEN;
 
 /**********************************************************************
+ *          Wayland pointer
+ */
+
+void wayland_pointer_init(struct wl_pointer *wl_pointer) DECLSPEC_HIDDEN;
+void wayland_pointer_deinit(void) DECLSPEC_HIDDEN;
+
+/**********************************************************************
  *          Helpers
  */