| // Copyright (c) 2013 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_SPEECH_RECOGNIZER_H_ |
| #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_ |
| |
| #include "base/logging.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "content/common/content_export.h" |
| |
| namespace content { |
| |
| class SpeechRecognitionEventListener; |
| |
| // Handles speech recognition for a session (identified by |session_id|). |
| class CONTENT_EXPORT SpeechRecognizer |
| : public base::RefCountedThreadSafe<SpeechRecognizer> { |
| public: |
| |
| SpeechRecognizer(SpeechRecognitionEventListener* listener, int session_id) |
| : listener_(listener), session_id_(session_id) { |
| DCHECK(listener_); |
| } |
| |
| virtual void StartRecognition(const std::string& device_id) = 0; |
| virtual void AbortRecognition() = 0; |
| virtual void StopAudioCapture() = 0; |
| virtual bool IsActive() const = 0; |
| virtual bool IsCapturingAudio() const = 0; |
| |
| protected: |
| friend class base::RefCountedThreadSafe<SpeechRecognizer>; |
| |
| virtual ~SpeechRecognizer() {} |
| SpeechRecognitionEventListener* listener() const { return listener_; } |
| int session_id() const { return session_id_; } |
| |
| private: |
| SpeechRecognitionEventListener* listener_; |
| int session_id_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SpeechRecognizer); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_ |