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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_EXTENSIONS_SPEECH_SPEECH_RECOGNITION_PRIVATE_DELEGATE_H_
#define CHROME_BROWSER_ASH_EXTENSIONS_SPEECH_SPEECH_RECOGNITION_PRIVATE_DELEGATE_H_
namespace extensions {
// A delegate class that helps the SpeechRecognitionPrivateRecognizer handle
// speech recognition events.
class SpeechRecognitionPrivateDelegate {
public:
virtual ~SpeechRecognitionPrivateDelegate() = default;
// Below are methods to handle speech recognition events. `key` is used to
// specify which SpeechRecognitionPrivateRecognizer this request came from.
// Called whenever speech recognition stops.
virtual void HandleSpeechRecognitionStopped(const std::string& key) = 0;
// Called whenever speech recognition returns a result.
virtual void HandleSpeechRecognitionResult(const std::string& key,
const std::u16string& transcript,
bool is_final) = 0;
// Called whenever speech recognition encounters an error.
virtual void HandleSpeechRecognitionError(const std::string& key,
const std::string& error) = 0;
};
} // namespace extensions
#endif // CHROME_BROWSER_ASH_EXTENSIONS_SPEECH_SPEECH_RECOGNITION_PRIVATE_DELEGATE_H_
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