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// Copyright 2016 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_ARC_OPTIN_ARC_TERMS_OF_SERVICE_NEGOTIATOR_H_
#define CHROME_BROWSER_ASH_ARC_OPTIN_ARC_TERMS_OF_SERVICE_NEGOTIATOR_H_
#include "base/functional/callback.h"
namespace arc {
// Interface to handle the Terms-of-service agreement user action.
class ArcTermsOfServiceNegotiator {
public:
ArcTermsOfServiceNegotiator();
ArcTermsOfServiceNegotiator(const ArcTermsOfServiceNegotiator&) = delete;
ArcTermsOfServiceNegotiator& operator=(const ArcTermsOfServiceNegotiator&) =
delete;
virtual ~ArcTermsOfServiceNegotiator();
// Invokes the|callback| asynchronously with "|accepted| = true" if user
// accepts ToS. If user explicitly rejects ToS, invokes |callback| with
// |accepted| = false. Deleting this instance cancels the operation, so
// |callback| will never be invoked then.
using NegotiationCallback = base::OnceCallback<void(bool accepted)>;
void StartNegotiation(NegotiationCallback callback);
protected:
// Reports result of negotiation via callback and then resets it. If
// |accepted| is true then this means terms of service were accepted.
void ReportResult(bool accepted);
private:
// Performs implementation specific action to start negotiation.
virtual void StartNegotiationImpl() = 0;
NegotiationCallback pending_callback_;
};
} // namespace arc
#endif // CHROME_BROWSER_ASH_ARC_OPTIN_ARC_TERMS_OF_SERVICE_NEGOTIATOR_H_
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