| // Copyright 2021 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_THEMES_TEST_THEME_SERVICE_CHANGED_WAITER_H_ |
| #define CHROME_BROWSER_THEMES_TEST_THEME_SERVICE_CHANGED_WAITER_H_ |
| |
| #include "base/memory/raw_ptr.h" |
| #include "base/run_loop.h" |
| #include "chrome/browser/themes/theme_service_observer.h" |
| |
| class ThemeService; |
| |
| namespace test { |
| |
| // Waits for a call to |OnThemeChanged()| for testing. It starts observing calls |
| // on construction, and can only be used to wait once. |
| class ThemeServiceChangedWaiter : public ThemeServiceObserver { |
| public: |
| explicit ThemeServiceChangedWaiter(ThemeService* service); |
| ThemeServiceChangedWaiter(const ThemeServiceChangedWaiter&) = delete; |
| ThemeServiceChangedWaiter& operator=(const ThemeServiceChangedWaiter&) = |
| delete; |
| ~ThemeServiceChangedWaiter() override; |
| |
| // ThemeServiceObserver implementation. |
| void OnThemeChanged() override; |
| |
| // Waits for an |OnThemeChanged()| call from |service_|. |
| void WaitForThemeChanged(); |
| |
| private: |
| base::RunLoop run_loop_; |
| |
| const raw_ptr<ThemeService> service_; |
| }; |
| |
| } // namespace test |
| |
| #endif // CHROME_BROWSER_THEMES_TEST_THEME_SERVICE_CHANGED_WAITER_H_ |