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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/bookmarks/bookmark_expanded_state_tracker.h"
#include <stdint.h>
#include <cstddef>
#include <utility>
#include <vector>
#include "base/check.h"
#include "base/check_op.h"
#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"
BookmarkExpandedStateTracker::BookmarkExpandedStateTracker(
PrefService* pref_service)
: pref_service_(pref_service) {}
BookmarkExpandedStateTracker::~BookmarkExpandedStateTracker() = default;
void BookmarkExpandedStateTracker::Init(
bookmarks::BookmarkModel* bookmark_model) {
DCHECK(!bookmark_model_);
bookmark_model_ = bookmark_model;
bookmark_model_->AddObserver(this);
}
void BookmarkExpandedStateTracker::SetExpandedNodes(const Nodes& nodes) {
UpdatePrefs(nodes);
}
BookmarkExpandedStateTracker::Nodes
BookmarkExpandedStateTracker::GetExpandedNodes() {
Nodes nodes;
if (!bookmark_model_ || !bookmark_model_->loaded()) {
return nodes;
}
if (!pref_service_) {
return nodes;
}
const base::Value::List& value =
pref_service_->GetList(bookmarks::prefs::kBookmarkEditorExpandedNodes);
bool changed = false;
for (const auto& entry : value) {
int64_t node_id;
const bookmarks::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(
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() {
bookmark_model_->RemoveObserver(this);
bookmark_model_ = nullptr;
}
void BookmarkExpandedStateTracker::BookmarkNodeRemoved(
const bookmarks::BookmarkNode* parent,
size_t old_index,
const bookmarks::BookmarkNode* node,
const std::set<GURL>& removed_urls,
const base::Location& location) {
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(
const std::set<GURL>& removed_urls,
const base::Location& location) {
// 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(bookmarks::prefs::kBookmarkEditorExpandedNodes,
std::move(values));
}
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