11e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)// Copyright 2013 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) 51e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)#include "base/prefs/scoped_user_pref_update.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/prefs/pref_notifier.h" 92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/prefs/pref_service.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace subtle { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedUserPrefUpdateBase::ScopedUserPrefUpdateBase(PrefService* service, 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* path) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : service_(service), 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) path_(path), 17116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch value_(NULL) { 18116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK(service_->CalledOnValidThread()); 19116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedUserPrefUpdateBase::~ScopedUserPrefUpdateBase() { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Notify(); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)base::Value* ScopedUserPrefUpdateBase::GetValueOfType(base::Value::Type type) { 26116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK(CalledOnValidThread()); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!value_) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) value_ = service_->GetMutableUserPref(path_.c_str(), type); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return value_; 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedUserPrefUpdateBase::Notify() { 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (value_) { 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) service_->ReportUserPrefChanged(path_); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) value_ = NULL; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace subtle 40