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 EulaAcceptedNotifier(PrefService * local_state)13EulaAcceptedNotifier::EulaAcceptedNotifier(PrefService* local_state) 14 : local_state_(local_state), observer_(NULL) { 15 } 16 ~EulaAcceptedNotifier()17EulaAcceptedNotifier::~EulaAcceptedNotifier() { 18 } 19 Init(Observer * observer)20void EulaAcceptedNotifier::Init(Observer* observer) { 21 DCHECK(!observer_ && observer); 22 observer_ = observer; 23 } 24 IsEulaAccepted()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 Create()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 NotifyObserver()57void EulaAcceptedNotifier::NotifyObserver() { 58 observer_->OnEulaAccepted(); 59 } 60 OnPrefChanged()61void EulaAcceptedNotifier::OnPrefChanged() { 62 DCHECK(!registrar_.IsEmpty()); 63 registrar_.RemoveAll(); 64 65 DCHECK(local_state_->GetBoolean(prefs::kEulaAccepted)); 66 observer_->OnEulaAccepted(); 67 } 68 69