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- // Copyright 2018 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_OVERLAY_LAYOUT_MANAGER_H_
- #define ASH_WM_OVERLAY_LAYOUT_MANAGER_H_
- #include "ash/ash_export.h"
- #include "ash/wm/wm_default_layout_manager.h"
- #include "ui/display/display_observer.h"
- namespace aura {
- class Window;
- }
- namespace ash {
- // Updates the bounds of widgets in the overlay container whenever the display
- // bounds change. Keeps children snapped to pixel bounds.
- class ASH_EXPORT OverlayLayoutManager : public WmDefaultLayoutManager,
- public display::DisplayObserver {
- public:
- explicit OverlayLayoutManager(aura::Window* overlay_container);
- OverlayLayoutManager(const OverlayLayoutManager&) = delete;
- OverlayLayoutManager& operator=(const OverlayLayoutManager&) = delete;
- ~OverlayLayoutManager() override;
- // display::DisplayObserver:
- void OnDisplayMetricsChanged(const display::Display& display,
- uint32_t changed_metrics) override;
- private:
- aura::Window* overlay_container_;
- display::ScopedDisplayObserver display_observer_{this};
- };
- } // namespace ash
- #endif // ASH_WM_OVERLAY_LAYOUT_MANAGER_H_
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