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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 COMPONENTS_CAST_RECEIVER_BROWSER_PUBLIC_MESSAGE_PORT_SERVICE_H_
#define COMPONENTS_CAST_RECEIVER_BROWSER_PUBLIC_MESSAGE_PORT_SERVICE_H_
#include <memory>
#include <string_view>
#include "base/functional/callback.h"
namespace cast_api_bindings {
class MessagePort;
} // namespace cast_api_bindings
namespace cast_receiver {
// This class defines a wrapper around MessagePort functionality to handle
// communicating with message ports, as well as their registration.
class MessagePortService {
public:
using CreatePairCallback = base::RepeatingCallback<void(
std::unique_ptr<cast_api_bindings::MessagePort>*,
std::unique_ptr<cast_api_bindings::MessagePort>*)>;
virtual ~MessagePortService() = default;
// Connects |port| to the remote port with name |port_name| asynchronously.
virtual void ConnectToPortAsync(
std::string_view port_name,
std::unique_ptr<cast_api_bindings::MessagePort> port) = 0;
// Registers a port opened locally via a port transfer. This allocates a new
// |channel_id| for the port, which is returned by the function.
virtual uint32_t RegisterOutgoingPort(
std::unique_ptr<cast_api_bindings::MessagePort> port) = 0;
// Registers a port opened by the peer via a port transfer. |channel_id| is
// provided by the peer.
virtual void RegisterIncomingPort(
uint32_t channel_id,
std::unique_ptr<cast_api_bindings::MessagePort> port) = 0;
// Removes the handler for |channel_id|. Note that this will destroy it. May
// only be called on a valid |channel_id| already assocaited with a previously
// registered |port|.
virtual void Remove(uint32_t channel_id) = 0;
};
} // namespace cast_receiver
#endif // COMPONENTS_CAST_RECEIVER_BROWSER_PUBLIC_MESSAGE_PORT_SERVICE_H_
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