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Unified Diff: chrome/browser/speech/extension_api/tts_engine_extension_api.h

Issue 374243004: Eliminate the dependence of tts extension API form tts_controller.cc (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Skip the instantiation of TtsExtensionEngine for android. Created 6 years, 5 months ago
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Index: chrome/browser/speech/extension_api/tts_engine_extension_api.h
diff --git a/chrome/browser/speech/extension_api/tts_engine_extension_api.h b/chrome/browser/speech/extension_api/tts_engine_extension_api.h
index 112c0e1b2f3bba0ec312edf760c68af194f20714..a2df6818e791042449e244444f667ae150b87512 100644
--- a/chrome/browser/speech/extension_api/tts_engine_extension_api.h
+++ b/chrome/browser/speech/extension_api/tts_engine_extension_api.h
@@ -28,32 +28,19 @@ extern const char kOnPause[];
extern const char kOnResume[];
}
-// Return a list of all available voices registered by extensions.
-void GetExtensionVoices(Profile* profile, std::vector<VoiceData>* out_voices);
-
-// Find the first extension with a tts_voices in its
-// manifest that matches the speech parameters of this utterance.
-// If found, store a pointer to the extension in |matching_extension| and
-// the index of the voice within the extension in |voice_index| and
-// return true.
-bool GetMatchingExtensionVoice(Utterance* utterance,
- const extensions::Extension** matching_extension,
- size_t* voice_index);
-
-// Speak the given utterance by sending an event to the given TTS engine
-// extension voice.
-void ExtensionTtsEngineSpeak(Utterance* utterance,
- const VoiceData& voice);
-
-// Stop speaking the given utterance by sending an event to the extension
-// associated with this utterance.
-void ExtensionTtsEngineStop(Utterance* utterance);
-
-// Pause in the middle of speaking this utterance.
-void ExtensionTtsEnginePause(Utterance* utterance);
-
-// Resume speaking this utterance.
-void ExtensionTtsEngineResume(Utterance* utterance);
+// TtsEngineDelegate implementation used by TtsController.
+class TtsExtensionEngine : public TtsEngineDelegate {
+ public:
+ static TtsExtensionEngine* GetInstance();
+
+ // Overridden from TtsEngineDelegate:
+ virtual void GetVoices(Profile* profile,
+ std::vector<VoiceData>* out_voices) OVERRIDE;
+ virtual void Speak(Utterance* utterance, const VoiceData& voice) OVERRIDE;
+ virtual void Stop(Utterance* utterance) OVERRIDE;
+ virtual void Pause(Utterance* utterance) OVERRIDE;
+ virtual void Resume(Utterance* utterance) OVERRIDE;
+};
// Hidden/internal extension function used to allow TTS engine extensions
// to send events back to the client that's calling tts.speak().
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