src/chrome/browser/speech/tts_message_filter.h

   1 // Copyright (c) 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_SPEECH_TTS_MESSAGE_FILTER_H_
   6 #define CHROME_BROWSER_SPEECH_TTS_MESSAGE_FILTER_H_
   7
   8 #include "chrome/browser/speech/tts_controller.h"
   9 #include "chrome/common/tts_messages.h"
  10 #include "content/public/browser/browser_message_filter.h"
  11
  12 class Profile;
  13
  14 class TtsMessageFilter
  15     : public content::BrowserMessageFilter,
  16       public UtteranceEventDelegate,
  17       public VoicesChangedDelegate {
  18  public:
  19   TtsMessageFilter(int render_process_id, Profile* profile);
  20
  21   // content::BrowserMessageFilter implementation.
  22   virtual void OverrideThreadForMessage(
  23       const IPC::Message& message,
  24       content::BrowserThread::ID* thread) OVERRIDE;
  25   virtual bool OnMessageReceived(const IPC::Message& message,
  26                                  bool* message_was_ok) OVERRIDE;
  27   virtual void OnChannelClosing() OVERRIDE;
  28
  29   // UtteranceEventDelegate implementation.
  30   virtual void OnTtsEvent(Utterance* utterance,
  31                           TtsEventType event_type,
  32                           int char_index,
  33                           const std::string& error_message) OVERRIDE;
  34
  35   // VoicesChangedDelegate implementation.
  36   virtual void OnVoicesChanged() OVERRIDE;
  37
  38  private:
  39   virtual ~TtsMessageFilter();
  40
  41   void OnInitializeVoiceList();
  42   void OnSpeak(const TtsUtteranceRequest& utterance);
  43   void OnPause();
  44   void OnResume();
  45   void OnCancel();
  46
  47   void OnChannelClosingInUIThread();
  48
  49   int render_process_id_;
  50   Profile* profile_;
  51
  52   DISALLOW_COPY_AND_ASSIGN(TtsMessageFilter);
  53 };
  54
  55 #endif  // CHROME_BROWSER_SPEECH_TTS_MESSAGE_FILTER_H_