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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_TTS_API_H_ | 5 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_TTS_API_H_ |
| 6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_TTS_API_H_ | 6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_TTS_API_H_ |
| 7 | 7 |
| 8 #include <queue> | 8 #include <queue> |
| 9 | 9 |
| 10 #include "base/singleton.h" | 10 #include "base/singleton.h" |
| (...skipping 22 matching lines...) Expand all Loading... |
| 33 double rate, | 33 double rate, |
| 34 double pitch, | 34 double pitch, |
| 35 double volume) = 0; | 35 double volume) = 0; |
| 36 | 36 |
| 37 // Stop speaking immediately and return true on success. | 37 // Stop speaking immediately and return true on success. |
| 38 virtual bool StopSpeaking() = 0; | 38 virtual bool StopSpeaking() = 0; |
| 39 | 39 |
| 40 // Return true if the synthesis engine is currently speaking. | 40 // Return true if the synthesis engine is currently speaking. |
| 41 virtual bool IsSpeaking() = 0; | 41 virtual bool IsSpeaking() = 0; |
| 42 | 42 |
| 43 virtual std::string error() { return error_; } | 43 virtual std::string error(); |
| 44 virtual void clear_error() { error_ = std::string(); } | 44 virtual void clear_error(); |
| 45 virtual void set_error(const std::string& error) { error_ = error; } | 45 virtual void set_error(const std::string& error); |
| 46 | 46 |
| 47 protected: | 47 protected: |
| 48 ExtensionTtsPlatformImpl() {} | 48 ExtensionTtsPlatformImpl() {} |
| 49 virtual ~ExtensionTtsPlatformImpl() {} | 49 virtual ~ExtensionTtsPlatformImpl() {} |
| 50 | 50 |
| 51 std::string error_; | 51 std::string error_; |
| 52 | 52 |
| 53 DISALLOW_COPY_AND_ASSIGN(ExtensionTtsPlatformImpl); | 53 DISALLOW_COPY_AND_ASSIGN(ExtensionTtsPlatformImpl); |
| 54 }; | 54 }; |
| 55 | 55 |
| 56 // Singleton class that manages text-to-speech. | 56 // Singleton class that manages text-to-speech. |
| 57 class ExtensionTtsController { | 57 class ExtensionTtsController { |
| 58 public: | 58 public: |
| 59 // Get the single instance of this class. | 59 // Get the single instance of this class. |
| 60 static ExtensionTtsController* GetInstance(); | 60 static ExtensionTtsController* GetInstance(); |
| 61 | 61 |
| 62 struct Utterance { | 62 struct Utterance { |
| 63 Utterance() | 63 Utterance(); |
| 64 : rate(-1.0), | 64 ~Utterance(); |
| 65 pitch(-1.0), | |
| 66 volume(-1.0), | |
| 67 success_task(NULL), | |
| 68 failure_task(NULL) { | |
| 69 } | |
| 70 | 65 |
| 71 std::string text; | 66 std::string text; |
| 72 std::string language; | 67 std::string language; |
| 73 std::string gender; | 68 std::string gender; |
| 74 double rate; | 69 double rate; |
| 75 double pitch; | 70 double pitch; |
| 76 double volume; | 71 double volume; |
| 77 | 72 |
| 78 Task* success_task; | 73 Task* success_task; |
| 79 Task* failure_task; | 74 Task* failure_task; |
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| 154 }; | 149 }; |
| 155 | 150 |
| 156 class ExtensionTtsIsSpeakingFunction : public SyncExtensionFunction { | 151 class ExtensionTtsIsSpeakingFunction : public SyncExtensionFunction { |
| 157 private: | 152 private: |
| 158 ~ExtensionTtsIsSpeakingFunction() {} | 153 ~ExtensionTtsIsSpeakingFunction() {} |
| 159 virtual bool RunImpl(); | 154 virtual bool RunImpl(); |
| 160 DECLARE_EXTENSION_FUNCTION_NAME("experimental.tts.isSpeaking") | 155 DECLARE_EXTENSION_FUNCTION_NAME("experimental.tts.isSpeaking") |
| 161 }; | 156 }; |
| 162 | 157 |
| 163 #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_TTS_API_H_ | 158 #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_TTS_API_H_ |
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