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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/ash/components/dbus/arc/arc_camera_client.h"
#include <utility>
#include "base/check_op.h"
#include "base/functional/bind.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chromeos/ash/components/dbus/arc/fake_arc_camera_client.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 ash {
namespace {
ArcCameraClient* g_instance = nullptr;
class ArcCameraClientImpl : public ArcCameraClient {
public:
explicit ArcCameraClientImpl(dbus::Bus* bus)
: proxy_(bus->GetObjectProxy(
arc_camera::kArcCameraServiceName,
dbus::ObjectPath(arc_camera::kArcCameraServicePath))) {}
ArcCameraClientImpl(const ArcCameraClientImpl&) = delete;
ArcCameraClientImpl& operator=(const ArcCameraClientImpl&) = delete;
~ArcCameraClientImpl() override = default;
// ArcCameraClient overrides:
void StartService(int fd,
const std::string& token,
chromeos::VoidDBusMethodCallback callback) override {
dbus::MethodCall method_call(arc_camera::kArcCameraServiceInterface,
"StartService");
dbus::MessageWriter writer(&method_call);
writer.AppendFileDescriptor(fd);
writer.AppendString(token);
proxy_->CallMethod(
&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::BindOnce(&ArcCameraClientImpl::OnVoidMethod,
weak_ptr_factory_.GetWeakPtr(), std::move(callback)));
}
private:
void OnVoidMethod(chromeos::VoidDBusMethodCallback callback,
dbus::Response* response) {
std::move(callback).Run(response);
}
raw_ptr<dbus::ObjectProxy> proxy_;
base::WeakPtrFactory<ArcCameraClientImpl> weak_ptr_factory_{this};
};
} // namespace
ArcCameraClient::ArcCameraClient() {
DCHECK(!g_instance);
g_instance = this;
}
ArcCameraClient::~ArcCameraClient() {
DCHECK_EQ(this, g_instance);
g_instance = nullptr;
}
// static
void ArcCameraClient::Initialize(dbus::Bus* bus) {
DCHECK(bus);
new ArcCameraClientImpl(bus);
}
// static
void ArcCameraClient::InitializeFake() {
// Do not create a new fake if it was initialized early in a browser test (to
// allow test properties to be set).
if (!FakeArcCameraClient::Get())
new FakeArcCameraClient();
}
// static
void ArcCameraClient::Shutdown() {
DCHECK(g_instance);
delete g_instance;
}
// static
ArcCameraClient* ArcCameraClient::Get() {
return g_instance;
}
} // namespace ash
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