chrome/browser/ui/app_list/start_page_observer.h

   1 // Copyright 2013 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_APP_LIST_START_PAGE_OBSERVER_H_
   6 #define CHROME_BROWSER_UI_APP_LIST_START_PAGE_OBSERVER_H_
   7
   8 #include "base/strings/string16.h"
   9 #include "ui/app_list/speech_ui_model_observer.h"
  10
  11 namespace app_list {
  12
  13 class StartPageObserver {
  14  public:
  15   // Invoked when a search query happens from the start page.
  16   virtual void OnSpeechResult(const base::string16& query, bool is_final) = 0;
  17
  18   // Invoked when a sound level of speech recognition is changed.
  19   virtual void OnSpeechSoundLevelChanged(int16 level) = 0;
  20
  21   // Invoked when the online speech recognition state is changed.
  22   virtual void OnSpeechRecognitionStateChanged(
  23       SpeechRecognitionState new_state) = 0;
  24
  25  protected:
  26   virtual ~StartPageObserver() {}
  27 };
  28
  29 }  // namespace app_list
  30
  31 #endif  // CHROME_BROWSER_UI_APP_LIST_START_PAGE_OBSERVER_H_