| // 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. |
| #include "chromeos/dbus/arc_midis_client.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/callback.h" |
| #include "dbus/bus.h" |
| #include "dbus/message.h" |
| #include "dbus/object_proxy.h" |
| #include "third_party/cros_system_api/dbus/service_constants.h" |
| |
| namespace chromeos { |
| |
| namespace { |
| |
| // ArcMidisClient is used to bootstrap a Mojo connection with midis. |
| // The BootstrapMojoConnection callback should be called during browser |
| // initialization. It is expected that the midis will be started up / taken down |
| // during browser startup / shutdown respectively. |
| class ArcMidisClientImpl : public ArcMidisClient { |
| public: |
| ArcMidisClientImpl() : weak_ptr_factory_(this) {} |
| |
| ~ArcMidisClientImpl() override = default; |
| |
| void BootstrapMojoConnection(base::ScopedFD fd, |
| VoidDBusMethodCallback callback) override { |
| dbus::MethodCall method_call(midis::kMidisInterfaceName, |
| midis::kBootstrapMojoConnectionMethod); |
| dbus::MessageWriter writer(&method_call); |
| |
| writer.AppendFileDescriptor(fd.get()); |
| proxy_->CallMethod( |
| &method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, |
| base::BindOnce(&ArcMidisClientImpl::OnVoidDBusMethod, |
| weak_ptr_factory_.GetWeakPtr(), std::move(callback))); |
| } |
| |
| protected: |
| void Init(dbus::Bus* bus) override { |
| proxy_ = bus->GetObjectProxy(midis::kMidisServiceName, |
| dbus::ObjectPath(midis::kMidisServicePath)); |
| } |
| |
| private: |
| void OnVoidDBusMethod(VoidDBusMethodCallback callback, |
| dbus::Response* response) { |
| std::move(callback).Run(response != nullptr); |
| } |
| |
| dbus::ObjectProxy* proxy_ = nullptr; |
| |
| // Note: This should remain the last member so it'll be destroyed and |
| // invalidate its weak pointers before any other members are destroyed. |
| base::WeakPtrFactory<ArcMidisClientImpl> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ArcMidisClientImpl); |
| }; |
| |
| } // namespace |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // ArcMidisClient |
| |
| // static |
| std::unique_ptr<ArcMidisClient> ArcMidisClient::Create() { |
| return std::make_unique<ArcMidisClientImpl>(); |
| } |
| |
| } // namespace chromeos |