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// Copyright (c) 2012 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_PUBLIC_BROWSER_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
#define CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
#include <string>
#include "base/callback_forward.h"
#include "content/public/common/speech_recognition_error.h"
namespace content {
class SpeechRecognitionEventListener;
struct SpeechRecognitionResult;
// Allows embedders to display the current state of recognition, for getting the
// user's permission and for fetching optional request information.
class SpeechRecognitionManagerDelegate {
public:
virtual ~SpeechRecognitionManagerDelegate() {}
// Get the optional diagnostic hardware information if available.
// This is called on the IO thread.
virtual void GetDiagnosticInformation(bool* can_report_metrics,
std::string* hardware_info) = 0;
// Checks (asynchronously) if current setup allows speech recognition.
// This is called on the IO thread.
virtual void CheckRecognitionIsAllowed(
int session_id,
base::Callback<void(bool ask_user, bool is_allowed)> callback) = 0;
// Checks whether the delegate is interested (returning a non nullptr ptr) or
// not (returning nullptr) in receiving a copy of all sessions events.
// This is called on the IO thread.
virtual SpeechRecognitionEventListener* GetEventListener() = 0;
// Checks whether the speech recognition for the given renderer should filter
// profanities or not.
virtual bool FilterProfanities(int render_process_id) = 0;
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_