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- // Copyright (c) 2012 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_HIGH_CONTRAST_HIGH_CONTRAST_CONTROLLER_H_
- #define ASH_HIGH_CONTRAST_HIGH_CONTRAST_CONTROLLER_H_
- #include "ash/ash_export.h"
- #include "ash/shell_observer.h"
- namespace aura {
- class Window;
- }
- namespace ash {
- // Controls the accessibility high contrast mode for classic ash.
- class ASH_EXPORT HighContrastController : public ShellObserver {
- public:
- HighContrastController();
- HighContrastController(const HighContrastController&) = delete;
- HighContrastController& operator=(const HighContrastController&) = delete;
- ~HighContrastController() override;
- // Set high contrast mode and update all available displays.
- void SetEnabled(bool enabled);
- // ShellObserver:
- void OnRootWindowAdded(aura::Window* root_window) override;
- private:
- // Update high contrast mode on the passed display.
- void UpdateDisplay(aura::Window* root_window);
- // Indicates if the high contrast mode is enabled or disabled.
- bool enabled_;
- };
- } // namespace ash
- #endif // ASH_HIGH_CONTRAST_HIGH_CONTRAST_CONTROLLER_H_
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