| // Copyright 2019 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 CONTENT_BROWSER_THEME_HELPER_H_ |
| #define CONTENT_BROWSER_THEME_HELPER_H_ |
| |
| #include "base/macros.h" |
| #include "base/no_destructor.h" |
| #include "base/scoped_observer.h" |
| #include "content/common/renderer.mojom-forward.h" |
| #include "ui/native_theme/native_theme.h" |
| #include "ui/native_theme/native_theme_observer.h" |
| |
| namespace content { |
| |
| // This class is used to monitor system color info changes and to notify the |
| // renderer processes. |
| class ThemeHelper : public ui::NativeThemeObserver { |
| public: |
| static ThemeHelper* GetInstance(); |
| |
| void SendSystemColorInfo(mojom::Renderer* renderer) const; |
| |
| private: |
| friend class base::NoDestructor<ThemeHelper>; |
| ThemeHelper(); |
| ~ThemeHelper() override; |
| |
| // Overridden from ui::NativeThemeObserver: |
| void OnNativeThemeUpdated(ui::NativeTheme* updated_theme) override; |
| |
| ScopedObserver<ui::NativeTheme, ui::NativeThemeObserver> theme_observer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ThemeHelper); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_THEME_HELPER_H_ |