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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.
- #include "components/bookmarks/browser/bookmark_expanded_state_tracker.h"
- #include <stdint.h>
- #include <utility>
- #include <vector>
- #include "base/strings/string_number_conversions.h"
- #include "base/values.h"
- #include "components/bookmarks/browser/bookmark_model.h"
- #include "components/bookmarks/browser/bookmark_utils.h"
- #include "components/bookmarks/common/bookmark_pref_names.h"
- #include "components/prefs/pref_service.h"
- namespace bookmarks {
- BookmarkExpandedStateTracker::BookmarkExpandedStateTracker(
- BookmarkModel* bookmark_model,
- PrefService* pref_service)
- : bookmark_model_(bookmark_model),
- pref_service_(pref_service) {
- bookmark_model->AddObserver(this);
- }
- BookmarkExpandedStateTracker::~BookmarkExpandedStateTracker() {
- }
- void BookmarkExpandedStateTracker::SetExpandedNodes(const Nodes& nodes) {
- UpdatePrefs(nodes);
- }
- BookmarkExpandedStateTracker::Nodes
- BookmarkExpandedStateTracker::GetExpandedNodes() {
- Nodes nodes;
- if (!bookmark_model_->loaded())
- return nodes;
- if (!pref_service_)
- return nodes;
- const base::Value::List& value =
- pref_service_->GetValueList(prefs::kBookmarkEditorExpandedNodes);
- bool changed = false;
- for (const auto& entry : value) {
- int64_t node_id;
- const BookmarkNode* node;
- const std::string* value_str = entry.GetIfString();
- if (value_str && base::StringToInt64(*value_str, &node_id) &&
- (node = GetBookmarkNodeByID(bookmark_model_, node_id)) != nullptr &&
- node->is_folder()) {
- nodes.insert(node);
- } else {
- changed = true;
- }
- }
- if (changed)
- UpdatePrefs(nodes);
- return nodes;
- }
- void BookmarkExpandedStateTracker::BookmarkModelLoaded(BookmarkModel* model,
- bool ids_reassigned) {
- if (ids_reassigned) {
- // If the ids change we can't trust the value in preferences and need to
- // reset it.
- SetExpandedNodes(Nodes());
- }
- }
- void BookmarkExpandedStateTracker::BookmarkModelChanged() {
- }
- void BookmarkExpandedStateTracker::BookmarkModelBeingDeleted(
- BookmarkModel* model) {
- model->RemoveObserver(this);
- }
- void BookmarkExpandedStateTracker::BookmarkNodeRemoved(
- BookmarkModel* model,
- const BookmarkNode* parent,
- size_t old_index,
- const BookmarkNode* node,
- const std::set<GURL>& removed_urls) {
- if (!node->is_folder())
- return; // Only care about folders.
- // Ask for the nodes again, which removes any nodes that were deleted.
- GetExpandedNodes();
- }
- void BookmarkExpandedStateTracker::BookmarkAllUserNodesRemoved(
- BookmarkModel* model,
- const std::set<GURL>& removed_urls) {
- // Ask for the nodes again, which removes any nodes that were deleted.
- GetExpandedNodes();
- }
- void BookmarkExpandedStateTracker::UpdatePrefs(const Nodes& nodes) {
- if (!pref_service_)
- return;
- base::Value::List values;
- values.reserve(nodes.size());
- for (const auto* node : nodes) {
- values.Append(base::NumberToString(node->id()));
- }
- pref_service_->SetList(prefs::kBookmarkEditorExpandedNodes,
- std::move(values));
- }
- } // namespace bookmarks
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