ui/native_theme/native_theme_observer.h

   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_