| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_BROWSER_SPEECH_INPUT_TAG_SPEECH_DISPATCHER_HOST_H_ |
| #define CONTENT_BROWSER_SPEECH_INPUT_TAG_SPEECH_DISPATCHER_HOST_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "base/memory/ref_counted.h" |
| #include "content/common/content_export.h" |
| #include "content/public/browser/browser_message_filter.h" |
| #include "content/public/browser/speech_recognition_event_listener.h" |
| #include "content/public/common/speech_recognition_result.h" |
| #include "net/url_request/url_request_context_getter.h" |
| |
| struct InputTagSpeechHostMsg_StartRecognition_Params; |
| |
| namespace content { |
| |
| class SpeechRecognitionManager; |
| |
| // InputTagSpeechDispatcherHost is a delegate for Speech API messages used by |
| // RenderMessageFilter. Basically it acts as a proxy, relaying the events coming |
| // from the SpeechRecognitionManager to IPC messages (and vice versa). |
| // It's the complement of SpeechRecognitionDispatcher (owned by RenderView). |
| class CONTENT_EXPORT InputTagSpeechDispatcherHost |
| : public BrowserMessageFilter, |
| public SpeechRecognitionEventListener { |
| public: |
| InputTagSpeechDispatcherHost( |
| bool guest, |
| int render_process_id, |
| net::URLRequestContextGetter* url_request_context_getter); |
| |
| // SpeechRecognitionEventListener methods. |
| virtual void OnRecognitionStart(int session_id) OVERRIDE; |
| virtual void OnAudioStart(int session_id) OVERRIDE; |
| virtual void OnEnvironmentEstimationComplete(int session_id) OVERRIDE; |
| virtual void OnSoundStart(int session_id) OVERRIDE; |
| virtual void OnSoundEnd(int session_id) OVERRIDE; |
| virtual void OnAudioEnd(int session_id) OVERRIDE; |
| virtual void OnRecognitionEnd(int session_id) OVERRIDE; |
| virtual void OnRecognitionResults( |
| int session_id, |
| const SpeechRecognitionResults& results) OVERRIDE; |
| virtual void OnRecognitionError( |
| int session_id, |
| const SpeechRecognitionError& error) OVERRIDE; |
| virtual void OnAudioLevelsChange(int session_id, |
| float volume, |
| float noise_volume) OVERRIDE; |
| |
| // BrowserMessageFilter implementation. |
| virtual bool OnMessageReceived(const IPC::Message& message, |
| bool* message_was_ok) OVERRIDE; |
| virtual void OverrideThreadForMessage( |
| const IPC::Message& message, |
| BrowserThread::ID* thread) OVERRIDE; |
| |
| private: |
| virtual ~InputTagSpeechDispatcherHost(); |
| |
| void OnStartRecognition( |
| const InputTagSpeechHostMsg_StartRecognition_Params& params); |
| void OnCancelRecognition(int render_view_id, int request_id); |
| void OnStopRecording(int render_view_id, int request_id); |
| |
| void StartRecognitionOnIO( |
| int render_process_id, |
| int guest_render_view_id, |
| const InputTagSpeechHostMsg_StartRecognition_Params& params, |
| bool filter_profanities); |
| |
| bool guest_; |
| int render_process_id_; |
| scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_; |
| |
| DISALLOW_COPY_AND_ASSIGN(InputTagSpeechDispatcherHost); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_SPEECH_INPUT_TAG_SPEECH_DISPATCHER_HOST_H_ |