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// Copyright 2015 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_WM_PUBLIC_SCOPED_DRAG_DROP_DISABLER_H_
#define UI_WM_PUBLIC_SCOPED_DRAG_DROP_DISABLER_H_
#include <memory>
#include "base/macros.h"
#include "ui/aura/window_observer.h"
namespace aura {
class Window;
namespace client {
class DragDropClient;
// ScopedDragDropDisabler is used to temporarily replace the drag'n'drop client
// for a window with a "no-op" client. Upon construction, it installs a new
// client on the window, and upon destruction, it restores the previous one.
class AURA_EXPORT ScopedDragDropDisabler : public WindowObserver {
public:
explicit ScopedDragDropDisabler(Window* window);
~ScopedDragDropDisabler() override;
private:
// WindowObserver:
void OnWindowDestroyed(Window* window) override;
Window* window_;
DragDropClient* old_client_;
std::unique_ptr<DragDropClient> new_client_;
DISALLOW_COPY_AND_ASSIGN(ScopedDragDropDisabler);
};
} // namespace client
} // namespace aura
#endif // UI_WM_PUBLIC_SCOPED_DRAG_DROP_DISABLER_H_