| // 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); |
| } |
| |
| std::unique_ptr<base::DictionaryValue> InMemoryPrefStore::GetValues() const { |
| return prefs_.AsDictionaryValue(); |
| } |
| |
| 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, base::Value::FromUniquePtrValue(std::move(value)))) |
| ReportValueChanged(key, flags); |
| } |
| |
| void InMemoryPrefStore::SetValueSilently(const std::string& key, |
| std::unique_ptr<base::Value> value, |
| uint32_t flags) { |
| DCHECK(value); |
| prefs_.SetValue(key, base::Value::FromUniquePtrValue(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); |
| } |
| |
| bool InMemoryPrefStore::IsInMemoryPrefStore() const { |
| return true; |
| } |