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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 "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::ListValue* value =
pref_service_->GetList(prefs::kBookmarkEditorExpandedNodes);
if (!value)
return nodes;
bool changed = false;
for (base::ListValue::const_iterator i = value->begin();
i != value->end(); ++i) {
std::string value;
int64_t node_id;
const BookmarkNode* node;
if (i->GetAsString(&value) && base::StringToInt64(value, &node_id) &&
(node = GetBookmarkNodeByID(bookmark_model_, node_id)) != NULL &&
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,
int 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::ListValue values;
for (Nodes::const_iterator i = nodes.begin(); i != nodes.end(); ++i) {
values.Set(values.GetSize(),
new base::Value(base::Int64ToString((*i)->id())));
}
pref_service_->Set(prefs::kBookmarkEditorExpandedNodes, values);
}
} // namespace bookmarks
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