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// Copyright 2014 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 MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_IMPL_INTERNAL_H_
#define MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_IMPL_INTERNAL_H_
#include "mojo/public/cpp/bindings/error_handler.h"
#include "mojo/public/cpp/bindings/interface_ptr.h"
#include "mojo/public/cpp/bindings/lib/filter_chain.h"
#include "mojo/public/cpp/bindings/lib/message_header_validator.h"
#include "mojo/public/cpp/system/macros.h"
namespace mojo {
namespace internal {
template <typename Interface>
class InterfaceImplBase : public Interface {
public:
virtual ~InterfaceImplBase() {}
virtual void OnConnectionEstablished() = 0;
virtual void OnConnectionError() = 0;
};
template <typename Interface>
class InterfaceImplState : public ErrorHandler {
public:
typedef typename Interface::Client Client;
explicit InterfaceImplState(InterfaceImplBase<Interface>* instance)
: router_(NULL),
proxy_(NULL) {
assert(instance);
stub_.set_sink(instance);
}
virtual ~InterfaceImplState() {
delete proxy_;
if (router_) {
router_->set_error_handler(NULL);
delete router_;
}
}
void BindProxy(
InterfacePtr<Interface>* ptr,
const MojoAsyncWaiter* waiter = GetDefaultAsyncWaiter()) {
MessagePipe pipe;
ptr->Bind(pipe.handle0.Pass(), waiter);
Bind(pipe.handle1.Pass(), waiter);
}
void Bind(ScopedMessagePipeHandle handle,
const MojoAsyncWaiter* waiter) {
assert(!router_);
FilterChain filters;
filters.Append<MessageHeaderValidator>();
filters.Append<typename Interface::RequestValidator_>();
filters.Append<typename Interface::Client::ResponseValidator_>();
router_ = new Router(handle.Pass(), filters.Pass(), waiter);
router_->set_incoming_receiver(&stub_);
router_->set_error_handler(this);
proxy_ = new typename Client::Proxy_(router_);
instance()->OnConnectionEstablished();
}
Router* router() { return router_; }
Client* client() { return proxy_; }
private:
InterfaceImplBase<Interface>* instance() {
return static_cast<InterfaceImplBase<Interface>*>(stub_.sink());
}
virtual void OnConnectionError() MOJO_OVERRIDE {
instance()->OnConnectionError();
}
Router* router_;
typename Client::Proxy_* proxy_;
typename Interface::Stub_ stub_;
MOJO_DISALLOW_COPY_AND_ASSIGN(InterfaceImplState);
};
} // namespace internal
} // namespace mojo
#endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_IMPL_INTERNAL_H_
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