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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/prefs/scoped_user_pref_update.h"
#include <string_view>
#include "base/check_deref.h"
#include "base/check_op.h"
#include "components/prefs/pref_notifier.h"
#include "components/prefs/pref_service.h"
// TODO(crbug.com/40895218): The following two can be removed after resolving
// the problem.
#include "base/debug/crash_logging.h"
#include "base/debug/dump_without_crashing.h"
#include "base/types/cxx23_to_underlying.h"
namespace subtle {
ScopedUserPrefUpdateBase::ScopedUserPrefUpdateBase(PrefService* service,
std::string_view path)
: service_(CHECK_DEREF(service)), path_(path) {
DCHECK_CALLED_ON_VALID_SEQUENCE(service_->sequence_checker_);
}
ScopedUserPrefUpdateBase::~ScopedUserPrefUpdateBase() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
Notify();
}
base::Value* ScopedUserPrefUpdateBase::GetValueOfType(base::Value::Type type) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (!value_)
value_ = service_->GetMutableUserPref(path_, type);
if (!value_) {
// TODO(crbug.com/40895218) This is unexpected, so let's collect some data.
const PrefService::Preference* pref = service_->FindPreference(path_);
SCOPED_CRASH_KEY_NUMBER(
"ScopedUserPrefUpdate", "PrevServiceStatus",
base::to_underlying(service_->GetInitializationStatus()));
SCOPED_CRASH_KEY_STRING32("ScopedUserPrefUpdate", "FindPreference",
pref ? "Yes" : "No");
SCOPED_CRASH_KEY_NUMBER("ScopedUserPrefUpdate", "Type",
pref ? base::to_underlying(pref->GetType()) : -1);
base::debug::DumpWithoutCrashing();
}
return value_;
}
void ScopedUserPrefUpdateBase::Notify() {
if (value_) {
service_->ReportUserPrefChanged(path_);
value_ = nullptr;
}
}
} // namespace subtle
base::Value::Dict& ScopedDictPrefUpdate::Get() {
return GetValueOfType(base::Value::Type::DICT)->GetDict();
}
base::Value::List& ScopedListPrefUpdate::Get() {
return GetValueOfType(base::Value::Type::LIST)->GetList();
}
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