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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SYNC_SESSIONS_SESSION_SYNC_SERVICE_H_
#define COMPONENTS_SYNC_SESSIONS_SESSION_SYNC_SERVICE_H_
#include "base/callback_list.h"
#include "base/memory/weak_ptr.h"
#include "components/keyed_service/core/keyed_service.h"
namespace syncer {
class GlobalIdMapper;
class DataTypeControllerDelegate;
} // namespace syncer
namespace sync_sessions {
class OpenTabsUIDelegate;
// KeyedService responsible session sync (aka tab sync).
// This powers things like the history UI, where "Tabs from other devices"
// exists, as well as the uploading counterpart for other devices to see our
// local tabs.
class SessionSyncService : public KeyedService {
public:
SessionSyncService();
SessionSyncService(const SessionSyncService&) = delete;
SessionSyncService& operator=(const SessionSyncService&) = delete;
~SessionSyncService() override;
virtual syncer::GlobalIdMapper* GetGlobalIdMapper() const = 0;
// Return the active OpenTabsUIDelegate. If UserSelectableType::kTabs is not
// enabled or not currently syncing, returns nullptr.
virtual OpenTabsUIDelegate* GetOpenTabsUIDelegate() = 0;
// Allows client code to be notified when foreign sessions change.
[[nodiscard]] virtual base::CallbackListSubscription
SubscribeToForeignSessionsChanged(const base::RepeatingClosure& cb) = 0;
virtual base::WeakPtr<syncer::DataTypeControllerDelegate>
GetControllerDelegate() = 0;
};
} // namespace sync_sessions
#endif // COMPONENTS_SYNC_SESSIONS_SESSION_SYNC_SERVICE_H_
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