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// Copyright 2020 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/hermes/hermes_manager_client.h"
#include <memory>
#include "base/functional/bind.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "chromeos/ash/components/dbus/hermes/fake_hermes_manager_client.h"
#include "chromeos/ash/components/dbus/hermes/hermes_response_status.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/object_path.h"
#include "dbus/object_proxy.h"
#include "dbus/property.h"
#include "third_party/cros_system_api/dbus/hermes/dbus-constants.h"
namespace ash {
namespace {
HermesManagerClient* g_instance = nullptr;
} // namespace
// The HermesManagerClient implementation.
class HermesManagerClientImpl : public HermesManagerClient {
public:
explicit HermesManagerClientImpl(dbus::Bus* bus) {
dbus::ObjectPath hermes_manager_path(hermes::kHermesManagerPath);
object_proxy_ =
bus->GetObjectProxy(hermes::kHermesServiceName, hermes_manager_path);
object_proxy_->WaitForServiceToBeAvailable(
base::BindOnce(&HermesManagerClientImpl::OnHermesAvailable,
weak_ptr_factory_.GetWeakPtr()));
}
explicit HermesManagerClientImpl(const HermesManagerClient&) = delete;
HermesManagerClientImpl& operator=(const HermesManagerClient&) = delete;
~HermesManagerClientImpl() override = default;
// HermesManagerClient:
const std::vector<dbus::ObjectPath>& GetAvailableEuiccs() override {
if (properties_) {
available_euiccs_ = properties_->available_euiccs().value();
}
return available_euiccs_;
}
TestInterface* GetTestInterface() override { return nullptr; }
private:
// Hermes Manager properties.
class Properties : public dbus::PropertySet {
public:
Properties(dbus::ObjectProxy* object_proxy,
const PropertyChangedCallback& callback)
: dbus::PropertySet(object_proxy,
hermes::kHermesManagerInterface,
callback) {
RegisterProperty(hermes::manager::kAvailableEuiccsProperty,
&available_euiccs_);
}
~Properties() override = default;
dbus::Property<std::vector<dbus::ObjectPath>>& available_euiccs() {
return available_euiccs_;
}
private:
// List of euicc objects available on the device.
dbus::Property<std::vector<dbus::ObjectPath>> available_euiccs_;
};
void OnPropertyChanged(const dbus::ObjectPath& object_path,
const std::string& property_name) {
for (auto& observer : observers()) {
observer.OnAvailableEuiccListChanged();
}
}
void OnHermesAvailable(bool service_is_available) {
dbus::ObjectPath hermes_manager_path(hermes::kHermesManagerPath);
properties_ = std::make_unique<Properties>(
object_proxy_,
base::BindRepeating(&HermesManagerClientImpl::OnPropertyChanged,
weak_ptr_factory_.GetWeakPtr(),
hermes_manager_path));
properties_->ConnectSignals();
properties_->GetAll();
}
raw_ptr<dbus::ObjectProxy> object_proxy_;
std::unique_ptr<Properties> properties_;
std::vector<dbus::ObjectPath> available_euiccs_;
base::WeakPtrFactory<HermesManagerClientImpl> weak_ptr_factory_{this};
};
HermesManagerClient::HermesManagerClient() {
DCHECK(!g_instance);
g_instance = this;
}
HermesManagerClient::~HermesManagerClient() {
DCHECK_EQ(g_instance, this);
for (auto& observer : observers()) {
observer.OnShutdown();
}
g_instance = nullptr;
}
void HermesManagerClient::AddObserver(HermesManagerClient::Observer* observer) {
DCHECK(observer);
observers_.AddObserver(observer);
}
void HermesManagerClient::RemoveObserver(
HermesManagerClient::Observer* observer) {
DCHECK(observer);
observers_.RemoveObserver(observer);
}
// static
void HermesManagerClient::Initialize(dbus::Bus* bus) {
DCHECK(bus);
DCHECK(!g_instance);
new HermesManagerClientImpl(bus);
}
// static
void HermesManagerClient::InitializeFake() {
new FakeHermesManagerClient();
}
// static
void HermesManagerClient::Shutdown() {
DCHECK(g_instance);
delete g_instance;
}
// static
HermesManagerClient* HermesManagerClient::Get() {
return g_instance;
}
} // namespace ash
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