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// Copyright 2017 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_OVERVIEW_SCOPED_OVERVIEW_HIDE_WINDOWS_H_
#define ASH_WM_OVERVIEW_SCOPED_OVERVIEW_HIDE_WINDOWS_H_
#include <map>
#include <vector>
#include "ash/ash_export.h"
#include "base/macros.h"
#include "ui/aura/window_observer.h"
namespace aura {
class Window;
} // namespace aura
namespace ash {
// ScopedOverviewHideWindows hides the list of windows in overview mode,
// remembers their visibility and recovers the visibility after overview mode.
class ASH_EXPORT ScopedOverviewHideWindows : public aura::WindowObserver {
public:
// |windows| the list of windows to hide in overview mode. If |force_hidden|
// is true, the hidden windows may have their visibility altered during
// overview, but we want to keep them hidden.
ScopedOverviewHideWindows(const std::vector<aura::Window*>& windows,
bool force_hidden);
~ScopedOverviewHideWindows() override;
// aura::WindowObserver:
void OnWindowDestroying(aura::Window* window) override;
void OnWindowVisibilityChanged(aura::Window* window, bool visible) override;
private:
std::map<aura::Window*, bool> window_visibility_;
bool force_hidden_;
DISALLOW_COPY_AND_ASSIGN(ScopedOverviewHideWindows);
};
} // namespace ash
#endif // ASH_WM_OVERVIEW_SCOPED_OVERVIEW_HIDE_WINDOWS_H_