ozone/platform/wayland: Implement pointer handling

ui/ozone/platform/wayland/wayland_window.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_WINDOW_H_
 #define UI_OZONE_PLATFORM_WAYLAND_WAYLAND_WINDOW_H_
 
+#include "ui/events/platform/platform_event_dispatcher.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/ozone/platform/wayland/wayland_object.h"
 #include "ui/platform_window/platform_window.h"
 
 namespace ui {
 
 class WaylandDisplay;
 
-class WaylandWindow : public PlatformWindow {
+class WaylandWindow : public PlatformWindow, public PlatformEventDispatcher {
  public:
   WaylandWindow(PlatformWindowDelegate* delegate,
                 WaylandDisplay* display,
                 const gfx::Rect& bounds);
   ~WaylandWindow() override;
 
+  static WaylandWindow* FromSurface(wl_surface* surface);
+
   bool Initialize();
 
   wl_surface* GetSurface();
   gfx::AcceleratedWidget GetWidget();
 
   // Apply the bounds specified in the most recent configure event. This should
   // be called after processing all pending events in the wayland connection.
   void ApplyPendingBounds();
 
+  // Set whether this window has pointer focus and should dispatch mouse events.
+  void set_pointer_focus(bool focus) { has_pointer_focus_ = focus; }
+
   // PlatformWindow
   void Show() override;
   void Hide() override;
   void Close() override;
   void SetBounds(const gfx::Rect& bounds) override;
   gfx::Rect GetBounds() override;
   void SetTitle(const base::string16& title) override;
   void SetCapture() override;
   void ReleaseCapture() override;
   void ToggleFullscreen() override;
   void Maximize() override;
   void Minimize() override;
   void Restore() override;
   void SetCursor(PlatformCursor cursor) override;
   void MoveCursorTo(const gfx::Point& location) override;
   void ConfineCursorToBounds(const gfx::Rect& bounds) override;
   PlatformImeController* GetPlatformImeController() override;
 
+  // PlatformEventDispatcher
+  bool CanDispatchEvent(const PlatformEvent& event) override;
+  uint32_t DispatchEvent(const PlatformEvent& event) override;
+
   // xdg_surface_listener
   static void Configure(void* data,
                         xdg_surface* obj,
                         int32_t width,
                         int32_t height,
                         wl_array* states,
                         uint32_t serial);
   static void Close(void* data, xdg_surface* obj);
 
  private:
   PlatformWindowDelegate* delegate_;
   WaylandDisplay* display_;
 
   wl::Object<wl_surface> surface_;
   wl::Object<xdg_surface> xdg_surface_;
 
   gfx::Rect bounds_;
   gfx::Rect pending_bounds_;
   uint32_t pending_configure_serial_;
+  bool has_pointer_focus_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(WaylandWindow);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_WAYLAND_WAYLAND_WINDOW_H_