chrome/browser/speech/extension_api/tts_extension_api.h

   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 CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_EXTENSION_API_H_
   6 #define CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_EXTENSION_API_H_
   7
   8 #include <string>
   9
  10 #include "chrome/browser/extensions/chrome_extension_function.h"
  11 #include "chrome/browser/speech/tts_controller.h"
  12 #include "extensions/browser/browser_context_keyed_api_factory.h"
  13
  14 namespace content {
  15 class BrowserContext;
  16 }
  17
  18 const char *TtsEventTypeToString(TtsEventType event_type);
  19 TtsEventType TtsEventTypeFromString(const std::string& str);
  20
  21 namespace extensions {
  22
  23 class TtsSpeakFunction : public ChromeAsyncExtensionFunction {
  24  private:
  25   ~TtsSpeakFunction() override {}
  26   bool RunAsync() override;
  27   DECLARE_EXTENSION_FUNCTION("tts.speak", TTS_SPEAK)
  28 };
  29
  30 class TtsStopSpeakingFunction : public ChromeSyncExtensionFunction {
  31  private:
  32   ~TtsStopSpeakingFunction() override {}
  33   bool RunSync() override;
  34   DECLARE_EXTENSION_FUNCTION("tts.stop", TTS_STOP)
  35 };
  36
  37 class TtsPauseFunction : public ChromeSyncExtensionFunction {
  38  private:
  39   ~TtsPauseFunction() override {}
  40   bool RunSync() override;
  41   DECLARE_EXTENSION_FUNCTION("tts.pause", TTS_PAUSE)
  42 };
  43
  44 class TtsResumeFunction : public ChromeSyncExtensionFunction {
  45  private:
  46   ~TtsResumeFunction() override {}
  47   bool RunSync() override;
  48   DECLARE_EXTENSION_FUNCTION("tts.resume", TTS_RESUME)
  49 };
  50
  51 class TtsIsSpeakingFunction : public ChromeSyncExtensionFunction {
  52  private:
  53   ~TtsIsSpeakingFunction() override {}
  54   bool RunSync() override;
  55   DECLARE_EXTENSION_FUNCTION("tts.isSpeaking", TTS_ISSPEAKING)
  56 };
  57
  58 class TtsGetVoicesFunction : public ChromeSyncExtensionFunction {
  59  private:
  60   ~TtsGetVoicesFunction() override {}
  61   bool RunSync() override;
  62   DECLARE_EXTENSION_FUNCTION("tts.getVoices", TTS_GETVOICES)
  63 };
  64
  65 class TtsAPI : public BrowserContextKeyedAPI {
  66  public:
  67   explicit TtsAPI(content::BrowserContext* context);
  68   ~TtsAPI() override;
  69
  70   // BrowserContextKeyedAPI implementation.
  71   static BrowserContextKeyedAPIFactory<TtsAPI>* GetFactoryInstance();
  72
  73  private:
  74   friend class BrowserContextKeyedAPIFactory<TtsAPI>;
  75
  76   // BrowserContextKeyedAPI implementation.
  77   static const char* service_name() {
  78     return "TtsAPI";
  79   }
  80   static const bool kServiceIsNULLWhileTesting = true;
  81 };
  82
  83 }  // namespace extensions
  84
  85 #endif  // CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_EXTENSION_API_H_