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// Copyright 2017 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 COMPONENTS_ARC_CONNECTION_OBSERVER_H_
#define COMPONENTS_ARC_CONNECTION_OBSERVER_H_
namespace arc {
namespace internal {
// Observer to listen events for connection.
class ConnectionObserverBase {
public:
// Called once the connection is ready.
// TODO(hidehiko): Currently, this means Instance is ready.
// Later, this will be called when Instance::Init() is completed
// for ARC full-duplex mojo connection.
virtual void OnConnectionReady() {}
// Called once the connection is closed.
// Currently, this means Instance is closed.
virtual void OnConnectionClosed() {}
protected:
virtual ~ConnectionObserverBase() = default;
};
} // namespace internal
// Observer to listen events for connection for specific type.
// This is for type safeness to prevent listening events of unexpected mojo
// connection.
template <typename InstanceType>
class ConnectionObserver : public internal::ConnectionObserverBase {};
} // namespace arc
#endif // COMPONENTS_ARC_CONNECTION_OBSERVER_H_
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