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// Copyright 2016 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.
#include "services/navigation/navigation.h"
#include "base/bind.h"
#include "base/memory/ptr_util.h"
#include "base/message_loop/message_loop.h"
#include "base/threading/thread_task_runner_handle.h"
#include "mojo/public/cpp/bindings/strong_binding.h"
#include "services/navigation/view_impl.h"
#include "services/service_manager/public/cpp/connector.h"
#include "services/service_manager/public/cpp/interface_registry.h"
#include "services/service_manager/public/cpp/service_context.h"
namespace navigation {
namespace {
void CreateViewOnViewTaskRunner(
std::unique_ptr<service_manager::Connector> connector,
const std::string& client_user_id,
mojom::ViewClientPtr client,
mojom::ViewRequest request,
std::unique_ptr<service_manager::ServiceContextRef> context_ref) {
mojo::MakeStrongBinding(
base::MakeUnique<ViewImpl>(std::move(connector), client_user_id,
std::move(client), std::move(context_ref)),
std::move(request));
}
} // namespace
std::unique_ptr<service_manager::Service> CreateNavigationService() {
return base::MakeUnique<Navigation>();
}
Navigation::Navigation()
: view_task_runner_(base::ThreadTaskRunnerHandle::Get()),
ref_factory_(base::MessageLoop::QuitWhenIdleClosure()),
weak_factory_(this) {
bindings_.set_connection_error_handler(
base::Bind(&Navigation::ViewFactoryLost, base::Unretained(this)));
}
Navigation::~Navigation() {}
bool Navigation::OnConnect(const service_manager::ServiceInfo& remote_info,
service_manager::InterfaceRegistry* registry) {
std::string remote_user_id = remote_info.identity.user_id();
if (!client_user_id_.empty() && client_user_id_ != remote_user_id) {
LOG(ERROR) << "Must have a separate Navigation service instance for "
<< "different BrowserContexts.";
return false;
}
client_user_id_ = remote_user_id;
registry->AddInterface(
base::Bind(&Navigation::CreateViewFactory, weak_factory_.GetWeakPtr()));
return true;
}
void Navigation::CreateView(mojom::ViewClientPtr client,
mojom::ViewRequest request) {
std::unique_ptr<service_manager::Connector> new_connector =
context()->connector()->Clone();
std::unique_ptr<service_manager::ServiceContextRef> context_ref =
ref_factory_.CreateRef();
view_task_runner_->PostTask(
FROM_HERE,
base::Bind(&CreateViewOnViewTaskRunner, base::Passed(&new_connector),
client_user_id_, base::Passed(&client), base::Passed(&request),
base::Passed(&context_ref)));
}
void Navigation::CreateViewFactory(mojom::ViewFactoryRequest request) {
bindings_.AddBinding(this, std::move(request));
refs_.insert(ref_factory_.CreateRef());
}
void Navigation::ViewFactoryLost() {
refs_.erase(refs_.begin());
}
} // navigation
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