1 // Copyright 2012 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "components/prefs/default_pref_store.h"
10 #include "base/check.h"
11 #include "base/observer_list.h"
12 #include "base/strings/string_piece.h"
16 DefaultPrefStore::DefaultPrefStore() {}
18 bool DefaultPrefStore::GetValue(base::StringPiece key,
19 const Value** result) const {
20 return prefs_.GetValue(key, result);
23 base::Value::Dict DefaultPrefStore::GetValues() const {
24 return prefs_.AsDict();
27 void DefaultPrefStore::AddObserver(PrefStore::Observer* observer) {
28 observers_.AddObserver(observer);
31 void DefaultPrefStore::RemoveObserver(PrefStore::Observer* observer) {
32 observers_.RemoveObserver(observer);
35 bool DefaultPrefStore::HasObservers() const {
36 return !observers_.empty();
39 void DefaultPrefStore::SetDefaultValue(const std::string& key, Value value) {
40 DCHECK(!GetValue(key, nullptr));
41 prefs_.SetValue(key, std::move(value));
44 void DefaultPrefStore::ReplaceDefaultValue(const std::string& key,
46 DCHECK(GetValue(key, nullptr));
47 bool notify = prefs_.SetValue(key, std::move(value));
49 for (Observer& observer : observers_)
50 observer.OnPrefValueChanged(key);
54 DefaultPrefStore::const_iterator DefaultPrefStore::begin() const {
55 return prefs_.begin();
58 DefaultPrefStore::const_iterator DefaultPrefStore::end() const {
62 DefaultPrefStore::~DefaultPrefStore() {}