chrome/browser/ui/search/search_model_observer.h

   1 // Copyright (c) 2012 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 CHROME_BROWSER_UI_SEARCH_SEARCH_MODEL_OBSERVER_H_
   6 #define CHROME_BROWSER_UI_SEARCH_SEARCH_MODEL_OBSERVER_H_
   7
   8 #include "chrome/browser/ui/search/search_model.h"
   9
  10 // This class defines the observer interface for the |SearchModel|.
  11 class SearchModelObserver {
  12  public:
  13   // Informs the observer that the model's state has changed.
  14   virtual void ModelChanged(const SearchModel::State& old_state,
  15                             const SearchModel::State& new_state) = 0;
  16
  17  protected:
  18   virtual ~SearchModelObserver() {}
  19 };
  20
  21 #endif  // CHROME_BROWSER_UI_SEARCH_SEARCH_MODEL_OBSERVER_H_