1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_NATIVE_THEME_NATIVE_THEME_OBSERVER_H_ 6 #define UI_NATIVE_THEME_NATIVE_THEME_OBSERVER_H_ 7 8 #include "ui/native_theme/native_theme_export.h" 9 10 namespace ui { 11 12 class NativeTheme; 13 14 // Observers which are notified when the native theme changes. 15 class NATIVE_THEME_EXPORT NativeThemeObserver { 16 public: 17 // Called when the native theme changes. The observed theme is passed so that 18 // observers may handle changes to their associated native theme instances. 19 virtual void OnNativeThemeUpdated(ui::NativeTheme* observed_theme) = 0; 20 21 protected: 22 virtual ~NativeThemeObserver(); 23 }; 24 25 } // namespace ui 26 27 #endif // UI_NATIVE_THEME_NATIVE_THEME_OBSERVER_H_ 28
