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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_SESSIONS_TAB_RESTORE_SERVICE_LOAD_WAITER_H_
#define CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_LOAD_WAITER_H_
#include "base/memory/raw_ptr.h"
#include "base/run_loop.h"
#include "base/scoped_observation.h"
#include "components/sessions/core/tab_restore_service.h"
#include "components/sessions/core/tab_restore_service_observer.h"
// Class used to run a message loop waiting for the TabRestoreService to finish
// loading. Does nothing if the TabRestoreService was already loaded.
class TabRestoreServiceLoadWaiter : public sessions::TabRestoreServiceObserver {
public:
explicit TabRestoreServiceLoadWaiter(sessions::TabRestoreService* service);
~TabRestoreServiceLoadWaiter() override;
void Wait();
private:
// TabRestoreServiceObserver:
void TabRestoreServiceDestroyed(
sessions::TabRestoreService* service) override {}
void TabRestoreServiceLoaded(sessions::TabRestoreService* service) override;
const raw_ptr<sessions::TabRestoreService> service_;
base::RunLoop run_loop_;
base::ScopedObservation<sessions::TabRestoreService,
sessions::TabRestoreServiceObserver>
observation_{this};
};
#endif // CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_LOAD_WAITER_H_
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