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- // Copyright 2016 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef COMPONENTS_READING_LIST_CORE_READING_LIST_STORE_DELEGATE_H_
- #define COMPONENTS_READING_LIST_CORE_READING_LIST_STORE_DELEGATE_H_
- #include <map>
- class ReadingListEntry;
- // The delegate to handle callbacks from the ReadingListStore.
- class ReadingListStoreDelegate {
- public:
- using ReadingListEntries = std::map<GURL, ReadingListEntry>;
- ReadingListStoreDelegate(const ReadingListStoreDelegate&) = delete;
- ReadingListStoreDelegate& operator=(const ReadingListStoreDelegate&) = delete;
- // These three methods handle callbacks from a ReadingListStore.
- // This method is called when the local store is loaded. |entries| contains
- // the ReadingListEntry present on the device before sync starts.
- virtual void StoreLoaded(std::unique_ptr<ReadingListEntries> entries) = 0;
- // Handle sync events.
- // Called to add a new entry to the model.
- // |entry| must not already exist in the model.
- virtual void SyncAddEntry(std::unique_ptr<ReadingListEntry> entry) = 0;
- // Called to merge a sync entry with a local entry in the model.
- // A local entry with the same URL must exist in the local store and have an
- // older UpdateTime.
- // Return a pointer to the merged entry.
- virtual ReadingListEntry* SyncMergeEntry(
- std::unique_ptr<ReadingListEntry> entry) = 0;
- // Called to remove an entry to the model.
- virtual void SyncRemoveEntry(const GURL& url) = 0;
- protected:
- ReadingListStoreDelegate() {}
- virtual ~ReadingListStoreDelegate() {}
- };
- #endif // COMPONENTS_READING_LIST_CORE_READING_LIST_STORE_DELEGATE_H_
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