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- // Copyright 2014 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_BOOKMARKS_BROWSER_BOOKMARK_EXPANDED_STATE_TRACKER_H_
- #define COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_EXPANDED_STATE_TRACKER_H_
- #include <set>
- #include "base/memory/raw_ptr.h"
- #include "components/bookmarks/browser/base_bookmark_model_observer.h"
- class PrefService;
- namespace bookmarks {
- class BookmarkModel;
- class BookmarkNode;
- // BookmarkExpandedStateTracker is used to track a set of expanded nodes. The
- // nodes are persisted in preferences. If an expanded node is removed from the
- // model BookmarkExpandedStateTracker removes the node.
- class BookmarkExpandedStateTracker : public BaseBookmarkModelObserver {
- public:
- typedef std::set<const BookmarkNode*> Nodes;
- BookmarkExpandedStateTracker(BookmarkModel* bookmark_model,
- PrefService* pref_service);
- BookmarkExpandedStateTracker(const BookmarkExpandedStateTracker&) = delete;
- BookmarkExpandedStateTracker& operator=(const BookmarkExpandedStateTracker&) =
- delete;
- ~BookmarkExpandedStateTracker() override;
- // The set of expanded nodes.
- void SetExpandedNodes(const Nodes& nodes);
- Nodes GetExpandedNodes();
- private:
- // BaseBookmarkModelObserver:
- void BookmarkModelLoaded(BookmarkModel* model, bool ids_reassigned) override;
- void BookmarkModelChanged() override;
- void BookmarkModelBeingDeleted(BookmarkModel* model) override;
- void BookmarkNodeRemoved(BookmarkModel* model,
- const BookmarkNode* parent,
- size_t old_index,
- const BookmarkNode* node,
- const std::set<GURL>& removed_urls) override;
- void BookmarkAllUserNodesRemoved(BookmarkModel* model,
- const std::set<GURL>& removed_urls) override;
- // Updates the value for |prefs::kBookmarkEditorExpandedNodes| from
- // GetExpandedNodes().
- void UpdatePrefs(const Nodes& nodes);
- raw_ptr<BookmarkModel> bookmark_model_;
- raw_ptr<PrefService> pref_service_;
- };
- } // namespace bookmarks
- #endif // COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_EXPANDED_STATE_TRACKER_H_
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