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1 // Copyright (c) 2012 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_BROWSER_SPEECH_SPEECH_INPUT_DISPATCHER_HOST_H_ | |
6 #define CONTENT_BROWSER_SPEECH_SPEECH_INPUT_DISPATCHER_HOST_H_ | |
7 | |
8 #include "base/memory/scoped_ptr.h" | |
9 #include "content/common/content_export.h" | |
10 #include "content/public/browser/browser_message_filter.h" | |
11 #include "net/url_request/url_request_context_getter.h" | |
12 | |
13 class AudioManager; | |
14 struct SpeechInputHostMsg_StartRecognition_Params; | |
15 | |
16 namespace content { | |
17 class SpeechInputPreferences; | |
18 struct SpeechInputResult; | |
19 } | |
20 | |
21 namespace speech_input { | |
22 | |
23 class SpeechInputManagerImpl; | |
24 | |
25 // SpeechInputDispatcherHost is a delegate for Speech API messages used by | |
26 // RenderMessageFilter. | |
27 // It's the complement of SpeechInputDispatcher (owned by RenderView). | |
28 class CONTENT_EXPORT SpeechInputDispatcherHost | |
29 : public content::BrowserMessageFilter { | |
30 public: | |
31 class SpeechInputCallers; | |
32 | |
33 SpeechInputDispatcherHost( | |
34 int render_process_id, | |
35 net::URLRequestContextGetter* context_getter, | |
36 content::SpeechInputPreferences* speech_input_preferences, | |
37 AudioManager* audio_manager); | |
38 | |
39 // Methods called by SpeechInputManagerImpl. | |
40 void SetRecognitionResult(int caller_id, | |
41 const content::SpeechInputResult& result); | |
42 void DidCompleteRecording(int caller_id); | |
43 void DidCompleteRecognition(int caller_id); | |
44 | |
45 // content::BrowserMessageFilter implementation. | |
46 virtual bool OnMessageReceived(const IPC::Message& message, | |
47 bool* message_was_ok) OVERRIDE; | |
48 | |
49 // Singleton manager setter useful for tests. | |
50 static void set_manager(SpeechInputManagerImpl* manager); | |
51 | |
52 private: | |
53 virtual ~SpeechInputDispatcherHost(); | |
54 | |
55 void OnStartRecognition( | |
56 const SpeechInputHostMsg_StartRecognition_Params ¶ms); | |
57 void OnCancelRecognition(int render_view_id, int request_id); | |
58 void OnStopRecording(int render_view_id, int request_id); | |
59 | |
60 // Returns the speech input manager to forward events to, creating one if | |
61 // needed. | |
62 SpeechInputManagerImpl* manager(); | |
63 | |
64 int render_process_id_; | |
65 bool may_have_pending_requests_; // Set if we received any speech IPC request | |
66 | |
67 scoped_refptr<net::URLRequestContextGetter> context_getter_; | |
68 scoped_refptr<content::SpeechInputPreferences> speech_input_preferences_; | |
69 AudioManager* audio_manager_; | |
70 | |
71 static SpeechInputManagerImpl* manager_; | |
72 | |
73 DISALLOW_COPY_AND_ASSIGN(SpeechInputDispatcherHost); | |
74 }; | |
75 | |
76 } // namespace speech_input | |
77 | |
78 #endif // CONTENT_BROWSER_SPEECH_SPEECH_INPUT_DISPATCHER_HOST_H_ | |
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