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// Copyright (c) 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/prefs/in_memory_pref_store.h"
#include <memory>
#include <utility>
#include "base/values.h"
InMemoryPrefStore::InMemoryPrefStore() {}
InMemoryPrefStore::~InMemoryPrefStore() {}
bool InMemoryPrefStore::GetValue(const std::string& key,
const base::Value** value) const {
return prefs_.GetValue(key, value);
}
bool InMemoryPrefStore::GetMutableValue(const std::string& key,
base::Value** value) {
return prefs_.GetValue(key, value);
}
void InMemoryPrefStore::AddObserver(PrefStore::Observer* observer) {
observers_.AddObserver(observer);
}
void InMemoryPrefStore::RemoveObserver(PrefStore::Observer* observer) {
observers_.RemoveObserver(observer);
}
bool InMemoryPrefStore::HasObservers() const {
return observers_.might_have_observers();
}
bool InMemoryPrefStore::IsInitializationComplete() const {
return true;
}
void InMemoryPrefStore::SetValue(const std::string& key,
std::unique_ptr<base::Value> value,
uint32_t flags) {
DCHECK(value);
if (prefs_.SetValue(key, std::move(value)))
ReportValueChanged(key, flags);
}
void InMemoryPrefStore::SetValueSilently(const std::string& key,
std::unique_ptr<base::Value> value,
uint32_t flags) {
prefs_.SetValue(key, std::move(value));
}
void InMemoryPrefStore::RemoveValue(const std::string& key, uint32_t flags) {
if (prefs_.RemoveValue(key))
ReportValueChanged(key, flags);
}
bool InMemoryPrefStore::ReadOnly() const {
return false;
}
PersistentPrefStore::PrefReadError InMemoryPrefStore::GetReadError() const {
return PersistentPrefStore::PREF_READ_ERROR_NONE;
}
PersistentPrefStore::PrefReadError InMemoryPrefStore::ReadPrefs() {
return PersistentPrefStore::PREF_READ_ERROR_NONE;
}
void InMemoryPrefStore::ReportValueChanged(const std::string& key,
uint32_t flags) {
for (Observer& observer : observers_)
observer.OnPrefValueChanged(key);
}
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