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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.
#ifndef CHROME_BROWSER_WIN_CONFLICTS_MODULE_LIST_COMPONENT_UPDATER_H_
#define CHROME_BROWSER_WIN_CONFLICTS_MODULE_LIST_COMPONENT_UPDATER_H_
#include <memory>
#include <string>
#include "base/functional/callback.h"
#include "base/scoped_observation.h"
#include "base/task/sequenced_task_runner.h"
#include "components/component_updater/component_updater_service.h"
// This class takes care of updating the module list component. A successful
// update will cause the ThirdPartyModuleListComponentInstaller class to call
// ModuleDatabase::LoadModuleList(). If the update was unsuccessful, the
// |on_module_list_component_not_updated_callback_| will be invoked instead.
class ModuleListComponentUpdater
: public component_updater::ComponentUpdateService::Observer {
public:
using UniquePtr =
std::unique_ptr<ModuleListComponentUpdater, base::OnTaskRunnerDeleter>;
ModuleListComponentUpdater(const ModuleListComponentUpdater&) = delete;
ModuleListComponentUpdater& operator=(const ModuleListComponentUpdater&) =
delete;
~ModuleListComponentUpdater() override;
// Creates a new instance that lives on the UI thread.
static UniquePtr Create(const std::string& module_list_component_id,
const base::RepeatingClosure&
on_module_list_component_not_updated_callback);
private:
ModuleListComponentUpdater(const std::string& module_list_component_id,
const base::RepeatingClosure&
on_module_list_component_not_updated_callback);
void InitializeOnUIThread();
// ComponentUpdateService::Observer:
void OnEvent(const update_client::CrxUpdateItem& item) override;
// Holds the id of the Third Party Module List component.
std::string module_list_component_id_;
base::RepeatingClosure on_module_list_component_not_updated_callback_;
// Observes the component update service when an update to the Module List
// component was forced.
base::ScopedObservation<component_updater::ComponentUpdateService,
component_updater::ComponentUpdateService::Observer>
observation_{this};
};
#endif // CHROME_BROWSER_WIN_CONFLICTS_MODULE_LIST_COMPONENT_UPDATER_H_
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