Implement cursor changing on Mushrome

ash/wm/ash_native_cursor_manager.h

-// Copyright (c) 2012 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 ASH_WM_ASH_NATIVE_CURSOR_MANAGER_H_
-#define ASH_WM_ASH_NATIVE_CURSOR_MANAGER_H_
-
-#include <memory>
-
-#include "ash/ash_export.h"
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "base/strings/string16.h"
-#include "ui/gfx/geometry/point.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/wm/core/native_cursor_manager.h"
-#include "ui/wm/core/native_cursor_manager_delegate.h"
-
-namespace ui {
-class ImageCursors;
-}
-
-namespace ash {
-
-namespace test {
-class CursorManagerTestApi;
-}
-
-// This does the ash-specific setting of cursor details like cursor
-// visibility. It communicates back with the CursorManager through the
-// NativeCursorManagerDelegate interface, which receives messages about what
-// changes were acted on.
-class ASH_EXPORT AshNativeCursorManager : public ::wm::NativeCursorManager {
- public:
-  AshNativeCursorManager();
-  ~AshNativeCursorManager() override;
-
-  // Toggle native cursor enabled/disabled.
-  // The native cursor is enabled by default. When disabled, we hide the native
-  // cursor regardless of visibility state, and let CursorWindowManager draw
-  // the cursor.
-  void SetNativeCursorEnabled(bool enabled);
-
- private:
-  friend class test::CursorManagerTestApi;
-
-  // Overridden from ::wm::NativeCursorManager:
-  void SetDisplay(const display::Display& display,
-                  ::wm::NativeCursorManagerDelegate* delegate) override;
-  void SetCursor(gfx::NativeCursor cursor,
-                 ::wm::NativeCursorManagerDelegate* delegate) override;
-  void SetVisibility(bool visible,
-                     ::wm::NativeCursorManagerDelegate* delegate) override;
-  void SetCursorSet(ui::CursorSetType cursor_set,
-                    ::wm::NativeCursorManagerDelegate* delegate) override;
-  void SetMouseEventsEnabled(
-      bool enabled,
-      ::wm::NativeCursorManagerDelegate* delegate) override;
-
-  // The cursor location where the cursor was disabled.
-  gfx::Point disabled_cursor_location_;
-
-  bool native_cursor_enabled_;
-
-  std::unique_ptr<ui::ImageCursors> image_cursors_;
-
-  DISALLOW_COPY_AND_ASSIGN(AshNativeCursorManager);
-};
-
-}  // namespace ash
-
-#endif  // ASH_WM_ASH_NATIVE_CURSOR_MANAGER_H_