1// Copyright 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "chrome/browser/web_resource/eula_accepted_notifier.h" 6 7#include "base/bind.h" 8#include "base/logging.h" 9#include "base/prefs/pref_service.h" 10#include "chrome/browser/browser_process.h" 11#include "chrome/common/pref_names.h" 12 13EulaAcceptedNotifier::EulaAcceptedNotifier(PrefService* local_state) 14 : local_state_(local_state), observer_(NULL) { 15} 16 17EulaAcceptedNotifier::~EulaAcceptedNotifier() { 18} 19 20void EulaAcceptedNotifier::Init(Observer* observer) { 21 DCHECK(!observer_ && observer); 22 observer_ = observer; 23} 24 25bool EulaAcceptedNotifier::IsEulaAccepted() { 26 if (local_state_->GetBoolean(prefs::kEulaAccepted)) 27 return true; 28 29 // Register for the notification, if this is the first time. 30 if (registrar_.IsEmpty()) { 31 registrar_.Init(local_state_); 32 registrar_.Add(prefs::kEulaAccepted, 33 base::Bind(&EulaAcceptedNotifier::OnPrefChanged, 34 base::Unretained(this))); 35 } 36 return false; 37} 38 39// static 40EulaAcceptedNotifier* EulaAcceptedNotifier::Create() { 41 // First run EULA only exists on ChromeOS, Android and iOS. On ChromeOS, it is 42 // only shown in official builds. 43#if (defined(OS_CHROMEOS) && defined(GOOGLE_CHROME_BUILD)) || \ 44 defined(OS_ANDROID) || defined(OS_IOS) 45 PrefService* local_state = g_browser_process->local_state(); 46 // Tests that use higher-level classes that use EulaAcceptNotifier may not 47 // register this pref. In this case, return NULL which is equivalent to not 48 // needing to check the EULA. 49 if (local_state->FindPreference(prefs::kEulaAccepted) == NULL) 50 return NULL; 51 return new EulaAcceptedNotifier(local_state); 52#else 53 return NULL; 54#endif 55} 56 57void EulaAcceptedNotifier::NotifyObserver() { 58 observer_->OnEulaAccepted(); 59} 60 61void EulaAcceptedNotifier::OnPrefChanged() { 62 DCHECK(!registrar_.IsEmpty()); 63 registrar_.RemoveAll(); 64 65 DCHECK(local_state_->GetBoolean(prefs::kEulaAccepted)); 66 observer_->OnEulaAccepted(); 67} 68 69