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// Copyright (c) 2011 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_AURA_SHELL_WINDOW_FRAME_H_
#define UI_AURA_SHELL_WINDOW_FRAME_H_
#pragma once
#include "ui/aura_shell/aura_shell_export.h"
namespace aura_shell {
// aura::Window property name for a pointer to the WindowFrame interface.
AURA_SHELL_EXPORT extern const char* const kWindowFrameKey;
// Interface for clients implementing a window frame. Implementors should
// add a pointer to this interface to each aura::Window, using the key above.
class AURA_SHELL_EXPORT WindowFrame {
public:
virtual ~WindowFrame() {}
// Called when the mouse enters or exits a top-level window.
virtual void OnWindowHoverChanged(bool hovered) = 0;
};
} // namespace aura_shell
#endif // UI_AURA_SHELL_WINDOW_FRAME_H_
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