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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.
#include "components/ntp_snippets/pref_util.h"
#include <memory>
#include "base/values.h"
#include "components/prefs/pref_service.h"
namespace ntp_snippets {
namespace prefs {
std::set<std::string> ReadDismissedIDsFromPrefs(const PrefService& pref_service,
const std::string& pref_name) {
std::set<std::string> dismissed_ids;
const base::ListValue* list = pref_service.GetList(pref_name);
for (const base::Value& value : *list) {
std::string dismissed_id;
bool success = value.GetAsString(&dismissed_id);
DCHECK(success) << "Failed to parse dismissed id from prefs param "
<< pref_name << " into string.";
dismissed_ids.insert(dismissed_id);
}
return dismissed_ids;
}
void StoreDismissedIDsToPrefs(PrefService* pref_service,
const std::string& pref_name,
const std::set<std::string>& dismissed_ids) {
base::ListValue list;
for (const std::string& dismissed_id : dismissed_ids) {
list.AppendString(dismissed_id);
}
pref_service->Set(pref_name, list);
}
} // namespace prefs
} // namespace ntp_snippets
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