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ash / wm / overview / scoped_overview_hide_windows.h [blame]
// Copyright 2017 The Chromium Authors
// 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 "base/memory/raw_ptr.h"
#include "ui/aura/window_observer.h"
namespace aura {
class Window;
} // namespace aura
namespace ash {
// Manages window visibility in Overview mode by doing the following:
// 1. Hides windows in overview mode based on certain criteria.
// 2. Stores the original visibility state of windows before they are hidden.
// 3. Restores hidden windows to their previous visibility state when the
// conditions for hiding are no longer met.
class 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<raw_ptr<aura::Window, VectorExperimental>>& windows,
bool force_hidden);
ScopedOverviewHideWindows(const ScopedOverviewHideWindows&) = delete;
ScopedOverviewHideWindows& operator=(const ScopedOverviewHideWindows&) =
delete;
~ScopedOverviewHideWindows() override;
bool HasWindow(aura::Window* window) const;
void AddWindow(aura::Window* window);
void RemoveWindow(aura::Window* window, bool show_window);
void RemoveAllWindows();
// aura::WindowObserver:
void OnWindowDestroying(aura::Window* window) override;
void OnWindowVisibilityChanged(aura::Window* window, bool visible) override;
private:
std::map<aura::Window*, bool> window_visibility_;
const bool force_hidden_;
};
} // namespace ash
#endif // ASH_WM_OVERVIEW_SCOPED_OVERVIEW_HIDE_WINDOWS_H_