15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/prefs/default_pref_store.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using base::Value; 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)DefaultPrefStore::DefaultPrefStore() {} 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool DefaultPrefStore::GetValue(const std::string& key, 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const Value** result) const { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return prefs_.GetValue(key, result); 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void DefaultPrefStore::AddObserver(PrefStore::Observer* observer) { 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) observers_.AddObserver(observer); 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void DefaultPrefStore::RemoveObserver(PrefStore::Observer* observer) { 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) observers_.RemoveObserver(observer); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 25424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)bool DefaultPrefStore::HasObservers() const { 26424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) return observers_.might_have_observers(); 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void DefaultPrefStore::SetDefaultValue(const std::string& key, 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<Value> value) { 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(!GetValue(key, NULL)); 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) prefs_.SetValue(key, value.release()); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void DefaultPrefStore::ReplaceDefaultValue(const std::string& key, 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<Value> value) { 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const Value* old_value = NULL; 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GetValue(key, &old_value); 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool notify = !old_value->Equals(value.get()); 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) prefs_.SetValue(key, value.release()); 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (notify) 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key)); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)DefaultPrefStore::const_iterator DefaultPrefStore::begin() const { 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return prefs_.begin(); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)DefaultPrefStore::const_iterator DefaultPrefStore::end() const { 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return prefs_.end(); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)DefaultPrefStore::~DefaultPrefStore() {} 54