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// Copyright 2019 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 CHROMECAST_BROWSER_SERVICE_CONNECTOR_H_
#define CHROMECAST_BROWSER_SERVICE_CONNECTOR_H_
#include "base/util/type_safety/id_type.h"
#include "chromecast/common/mojom/service_connector.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
namespace chromecast {
class ServiceConnector;
// An opaque identifier type so that bound ServiceConnector endpoints can reason
// about who's making connection requests.
//
// We don't use an enum because the definition of these IDs is split across
// public and internal sources.
using ServiceConnectorClientId = util::IdType32<ServiceConnector>;
// Something in browser process itself (e.g. CastAudioManager)
extern const ServiceConnectorClientId kBrowserProcessClientId;
// The Media Service hosted by Content.
extern const ServiceConnectorClientId kMediaServiceClientId;
// Browser-side implementation of the ServiceConnector mojom interface to route
// interface binding requests to various Cast-related services on behalf of
// clients both inside and outside of the browser process.
class ServiceConnector : public mojom::ServiceConnector {
public:
ServiceConnector();
ServiceConnector(const ServiceConnector&) = delete;
ServiceConnector& operator=(const ServiceConnector&) = delete;
~ServiceConnector() override;
// Connects a new pipe to the global ServiceConnector instance and returns its
// PendingRemote. Callable from any thread.
//
// |client_id| indicates the identity of the client that will ultimately use
// the returned ServiceConnector endpoint.
static mojo::PendingRemote<mojom::ServiceConnector> MakeRemote(
ServiceConnectorClientId client_id);
// Binds a receiver to the global ServiceConnector. Callable from any thread.
// |client_id| indicates the identity of the client holding the other end of
// the ServiceConnector pipe.
static void BindReceiver(
ServiceConnectorClientId client_id,
mojo::PendingReceiver<mojom::ServiceConnector> receiver);
// mojom::ServiceConnector implementation:
void Connect(const std::string& service_name,
mojo::GenericPendingReceiver receiver) override;
private:
mojo::ReceiverSet<mojom::ServiceConnector, ServiceConnectorClientId>
receivers_;
};
} // namespace chromecast
#endif // CHROMECAST_BROWSER_SERVICE_CONNECTOR_H_