start_page_observer.h revision f2477e01787aa58f445919b809d89e252beef54f 
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
10namespace app_list {
11
12class StartPageObserver {
13 public:
14  // Invoked when a search query happens from the start page.
15  virtual void OnSearch(const base::string16& query) = 0;
16
17  // Invoked when the online speech recognition state is changed. |recognizing|
18  // is the new state and true when the speech recognition is running currently.
19  virtual void OnSpeechRecognitionStateChanged(bool recognizing) = 0;
20
21 protected:
22  virtual ~StartPageObserver() {}
23};
24
25}  // namespace app_list
26
27#endif  // CHROME_BROWSER_UI_APP_LIST_START_PAGE_OBSERVER_H_
28