ozone/platform/wayland: Implement pointer handling

ui/ozone/platform/wayland/wayland_pointer.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_OZONE_PLATFORM_WAYLAND_WAYLAND_POINTER_H_
+#define UI_OZONE_PLATFORM_WAYLAND_WAYLAND_POINTER_H_
+
+#include "ui/events/ozone/evdev/event_dispatch_callback.h"
+#include "ui/gfx/geometry/point_f.h"
+#include "ui/ozone/platform/wayland/wayland_object.h"
+
+namespace ui {
+
+class WaylandPointer {
+ public:
+  WaylandPointer(wl_pointer* pointer, const EventDispatchCallback& callback);
+  virtual ~WaylandPointer();
+
+ private:
+  // wl_pointer_listener
+  static void Enter(void* data,
+                    wl_pointer* obj,
+                    uint32_t serial,
+                    wl_surface* surface,
+                    wl_fixed_t surface_x,
+                    wl_fixed_t surface_y);
+  static void Leave(void* data,
+                    wl_pointer* obj,
+                    uint32_t serial,
+                    wl_surface* surface);
+  static void Motion(void* data,
+                     wl_pointer* obj,
+                     uint32_t time,
+                     wl_fixed_t surface_x,
+                     wl_fixed_t surface_y);
+  static void Button(void* data,
+                     wl_pointer* obj,
+                     uint32_t serial,
+                     uint32_t time,
+                     uint32_t button,
+                     uint32_t state);
+  static void Axis(void* data,
+                   wl_pointer* obj,
+                   uint32_t time,
+                   uint32_t axis,
+                   wl_fixed_t value);
+
+  wl::Object<wl_pointer> obj_;
+  EventDispatchCallback callback_;
+  gfx::PointF location_;
+  int flags_ = 0;
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_WAYLAND_WAYLAND_POINTER_H_