blob: 6084011bb527d11a410dba605118536bdd546025 [file] [log] [blame]
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_DBUS_PRIVACY_SCREEN_SERVICE_PROVIDER_H_
#define ASH_DBUS_PRIVACY_SCREEN_SERVICE_PROVIDER_H_
#include "ash/dbus/privacy_screen/privacy_screen.pb.h"
#include "ash/display/privacy_screen_controller.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/scoped_observation.h"
#include "chromeos/ash/components/dbus/services/cros_dbus_service.h"
#include "dbus/exported_object.h"
namespace dbus {
class MethodCall;
}
namespace ash {
// This class exports a D-Bus service that platform daemons / userspace interact
// with to understand the current privacy screen setting. Unit test is in
// ash/display/privacy_screen_controller_unittest.cc file.
class ASH_EXPORT PrivacyScreenServiceProvider
: public CrosDBusService::ServiceProviderInterface,
public PrivacyScreenController::Observer {
public:
PrivacyScreenServiceProvider();
PrivacyScreenServiceProvider(const PrivacyScreenServiceProvider&) = delete;
PrivacyScreenServiceProvider& operator=(const PrivacyScreenServiceProvider&) =
delete;
~PrivacyScreenServiceProvider() override;
// CrosDBusService::ServiceProviderInterface:
void Start(scoped_refptr<dbus::ExportedObject> exported_object) override;
// PrivacyScreenController::Observer:
void OnPrivacyScreenSettingChanged(bool enabled, bool notify_ui) override;
private:
// Called from ExportedObject when a handler is exported as a D-Bus method or
// failed to be exported.
void OnExported(const std::string& interface_name,
const std::string& method_name,
bool success);
void GetPrivacyScreenSetting(
dbus::MethodCall* method_call,
dbus::ExportedObject::ResponseSender response_sender);
// A reference to ExportedObject for sending signals.
scoped_refptr<dbus::ExportedObject> exported_object_;
base::ScopedObservation<PrivacyScreenController,
PrivacyScreenController::Observer>
privacy_screen_observation_{this};
privacy_screen::PrivacyScreenSetting_PrivacyScreenState state_ =
privacy_screen::PrivacyScreenSetting_PrivacyScreenState_NOT_SUPPORTED;
// Keep this last so that all weak pointers will be invalidated at the
// beginning of destruction.
base::WeakPtrFactory<PrivacyScreenServiceProvider> weak_ptr_factory_{this};
};
} // namespace ash
#endif // ASH_DBUS_PRIVACY_SCREEN_SERVICE_PROVIDER_H_