| // 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_RENDERER_SPEECH_RECOGNITION_DISPATCHER_H_ |
| #define CONTENT_RENDERER_SPEECH_RECOGNITION_DISPATCHER_H_ |
| |
| #include <map> |
| |
| #include "base/basictypes.h" |
| #include "content/public/common/speech_recognition_result.h" |
| #include "content/public/renderer/render_view_observer.h" |
| #include "third_party/WebKit/public/platform/WebVector.h" |
| #include "third_party/WebKit/public/web/WebSpeechRecognitionHandle.h" |
| #include "third_party/WebKit/public/web/WebSpeechRecognizer.h" |
| |
| namespace content { |
| class RenderViewImpl; |
| struct SpeechRecognitionError; |
| struct SpeechRecognitionResult; |
| |
| // SpeechRecognitionDispatcher is a delegate for methods used by WebKit for |
| // scripted JS speech APIs. It's the complement of |
| // SpeechRecognitionDispatcherHost (owned by RenderViewHost). |
| class SpeechRecognitionDispatcher : public RenderViewObserver, |
| public blink::WebSpeechRecognizer { |
| public: |
| explicit SpeechRecognitionDispatcher(RenderViewImpl* render_view); |
| virtual ~SpeechRecognitionDispatcher(); |
| |
| // Aborts all speech recognitions. |
| void AbortAllRecognitions(); |
| |
| private: |
| // RenderViewObserver implementation. |
| virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
| |
| // blink::WebSpeechRecognizer implementation. |
| virtual void start(const blink::WebSpeechRecognitionHandle&, |
| const blink::WebSpeechRecognitionParams&, |
| blink::WebSpeechRecognizerClient*) OVERRIDE; |
| virtual void stop(const blink::WebSpeechRecognitionHandle&, |
| blink::WebSpeechRecognizerClient*) OVERRIDE; |
| virtual void abort(const blink::WebSpeechRecognitionHandle&, |
| blink::WebSpeechRecognizerClient*) OVERRIDE; |
| |
| void OnRecognitionStarted(int request_id); |
| void OnAudioStarted(int request_id); |
| void OnSoundStarted(int request_id); |
| void OnSoundEnded(int request_id); |
| void OnAudioEnded(int request_id); |
| void OnErrorOccurred(int request_id, const SpeechRecognitionError& error); |
| void OnRecognitionEnded(int request_id); |
| void OnResultsRetrieved(int request_id, |
| const SpeechRecognitionResults& result); |
| |
| int GetOrCreateIDForHandle(const blink::WebSpeechRecognitionHandle& handle); |
| bool HandleExists(const blink::WebSpeechRecognitionHandle& handle); |
| const blink::WebSpeechRecognitionHandle& GetHandleFromID(int handle_id); |
| |
| // The WebKit client class that we use to send events back to the JS world. |
| blink::WebSpeechRecognizerClient* recognizer_client_; |
| |
| typedef std::map<int, blink::WebSpeechRecognitionHandle> HandleMap; |
| HandleMap handle_map_; |
| int next_id_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SpeechRecognitionDispatcher); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_SPEECH_RECOGNITION_DISPATCHER_H_ |