chromium/content/public/browser/speech_recognition_manager.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNITION_MANAGER_H_
#define CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNITION_MANAGER_H_

#include "base/functional/callback.h"
#include "content/common/content_export.h"
#include "media/mojo/mojom/speech_recognition.mojom.h"
#include "media/mojo/mojom/speech_recognition_audio_forwarder.mojom.h"
#include "media/mojo/mojom/speech_recognizer.mojom-forward.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"

namespace content {

struct SpeechRecognitionAudioForwarderConfig;
class SpeechRecognitionEventListener;
struct SpeechRecognitionSessionConfig;
struct SpeechRecognitionSessionContext;

// The SpeechRecognitionManager (SRM) is a singleton class that handles SR
// functionalities within Chrome. Everyone that needs to perform SR should
// interface exclusively with the SRM, receiving events through the callback
// interface SpeechRecognitionEventListener.
// Since many different sources can use SR in different times (some overlapping
// is allowed while waiting for results), the SRM has the further responsibility
// of handling separately and reliably (taking into account also call sequences
// that might not make sense, e.g., two subsequent AbortSession calls).
// In this sense a session, within the SRM, models the ongoing evolution of a
// SR request from the viewpoint of the end-user, abstracting all the concrete
// operations that must be carried out, that will be handled by inner classes.
class SpeechRecognitionManager { … };

}  // namespace content

#endif  // CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNITION_MANAGER_H_