63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
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// Copyright 2012 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "components/prefs/default_pref_store.h"
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#include <string>
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#include <utility>
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#include "base/check.h"
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#include "base/observer_list.h"
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#include "base/strings/string_piece.h"
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using base::Value;
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DefaultPrefStore::DefaultPrefStore() {}
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bool DefaultPrefStore::GetValue(base::StringPiece key,
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const Value** result) const {
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return prefs_.GetValue(key, result);
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}
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base::Value::Dict DefaultPrefStore::GetValues() const {
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return prefs_.AsDict();
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}
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void DefaultPrefStore::AddObserver(PrefStore::Observer* observer) {
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observers_.AddObserver(observer);
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}
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void DefaultPrefStore::RemoveObserver(PrefStore::Observer* observer) {
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observers_.RemoveObserver(observer);
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}
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bool DefaultPrefStore::HasObservers() const {
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return !observers_.empty();
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}
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void DefaultPrefStore::SetDefaultValue(const std::string& key, Value value) {
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DCHECK(!GetValue(key, nullptr));
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prefs_.SetValue(key, std::move(value));
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}
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void DefaultPrefStore::ReplaceDefaultValue(const std::string& key,
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Value value) {
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DCHECK(GetValue(key, nullptr));
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bool notify = prefs_.SetValue(key, std::move(value));
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if (notify) {
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for (Observer& observer : observers_)
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observer.OnPrefValueChanged(key);
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}
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}
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DefaultPrefStore::const_iterator DefaultPrefStore::begin() const {
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return prefs_.begin();
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}
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DefaultPrefStore::const_iterator DefaultPrefStore::end() const {
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return prefs_.end();
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}
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DefaultPrefStore::~DefaultPrefStore() {}
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