| // Copyright (c) 2018 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_BROWSER_SPEECH_TTS_PLATFORM_IMPL_H_ |
| #define CONTENT_BROWSER_SPEECH_TTS_PLATFORM_IMPL_H_ |
| |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "content/public/browser/tts_controller.h" |
| #include "content/public/browser/tts_platform.h" |
| |
| namespace content { |
| |
| // Abstract platform implementation. |
| class TtsPlatformImpl : public TtsPlatform { |
| public: |
| static TtsPlatformImpl* GetInstance(); |
| |
| // TtsPlatform overrides. |
| bool LoadBuiltInTtsEngine(BrowserContext* browser_context) override; |
| void WillSpeakUtteranceWithVoice(TtsUtterance* utterance, |
| const VoiceData& voice_data) override; |
| std::string GetError() override; |
| void ClearError() override; |
| void SetError(const std::string& error) override; |
| |
| protected: |
| TtsPlatformImpl() {} |
| |
| // On some platforms this may be a leaky singleton - do not rely on the |
| // destructor being called! http://crbug.com/122026 |
| virtual ~TtsPlatformImpl() {} |
| |
| std::string error_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TtsPlatformImpl); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_SPEECH_TTS_PLATFORM_IMPL_H_ |