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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 CONTENT_RENDERER_TTS_DISPATCHER_H_ | |
6 #define CONTENT_RENDERER_TTS_DISPATCHER_H_ | |
7 | |
8 #include <vector> | |
9 | |
10 #include "base/basictypes.h" | |
11 #include "content/public/renderer/render_view_observer.h" | |
12 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSpeechSynthesis.h" | |
13 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSpeechSynthesisCli ent.h" | |
14 | |
15 namespace content { | |
16 class RenderViewImpl; | |
17 struct TtsVoice; | |
18 | |
19 // TtsDispatcher is a delegate for methods used by WebKit for | |
20 // speech synthesis APIs. It's the complement of | |
21 // TtsDispatcherHost (owned by RenderViewHost). | |
22 class TtsDispatcher : public RenderViewObserver, | |
23 public WebKit::WebSpeechSynthesis { | |
24 public: | |
25 explicit TtsDispatcher(RenderViewImpl* render_view); | |
26 virtual ~TtsDispatcher(); | |
27 | |
28 private: | |
29 // RenderViewObserver implementation. | |
30 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | |
31 | |
32 // WebKit::WebSpeechSynthesis implementation. | |
33 virtual void setClient(WebKit::WebSpeechSynthesisClient* client) OVERRIDE; | |
34 virtual void initializeVoiceList() OVERRIDE; | |
35 virtual void speak(const WebKit::WebSpeechSynthesisUtterance& utterance) | |
36 OVERRIDE; | |
37 virtual void pause() OVERRIDE; | |
38 virtual void resume() OVERRIDE; | |
39 virtual void cancel() OVERRIDE; | |
40 | |
41 void OnSetVoiceList(const std::vector<content::TtsVoice>& voices); | |
42 void OnDidStartSpeaking(int utterance_id); | |
43 void OnDidFinishSpeaking(int utterance_id); | |
44 void OnDidPauseSpeaking(int utterance_id); | |
45 void OnDidResumeSpeaking(int utterance_id); | |
46 void OnWordBoundary(int utterance_id, int char_index); | |
47 void OnSentenceBoundary(int utterance_id, int char_index); | |
48 void OnMarkerEvent(int utterance_id, int char_index); | |
49 void OnWasInterrupted(int utterance_id); | |
50 void OnWasCancelled(int utterance_id); | |
51 void OnSpeakingErrorOccurred(int utterance_id, | |
52 const std::string& error_message); | |
53 | |
54 // The WebKit client class that we use to send events back to the JS world. | |
55 WebKit::WebSpeechSynthesisClient* synthesis_client_; | |
tommi (sloooow) - chröme
2013/03/07 13:04:46
document ownership/scope?
dmazzoni
2013/03/19 17:30:22
Done.
| |
56 | |
57 DISALLOW_COPY_AND_ASSIGN(TtsDispatcher); | |
58 }; | |
59 | |
60 } // namespace content | |
61 | |
62 #endif // CONTENT_RENDERER_TTS_DISPATCHER_H_ | |
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