1 // Copyright (c) 2011 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/prefs/pref_set_observer.h" 6 7 #include "chrome/common/pref_names.h" 8 #include "content/common/notification_type.h" 9 10 PrefSetObserver::PrefSetObserver(PrefService* pref_service, 11 NotificationObserver* observer) 12 : pref_service_(pref_service), 13 observer_(observer) { 14 registrar_.Init(pref_service); 15 } 16 17 PrefSetObserver::~PrefSetObserver() {} 18 19 void PrefSetObserver::AddPref(const std::string& pref) { 20 if (!prefs_.count(pref) && pref_service_->FindPreference(pref.c_str())) { 21 prefs_.insert(pref); 22 registrar_.Add(pref.c_str(), this); 23 } 24 } 25 26 void PrefSetObserver::RemovePref(const std::string& pref) { 27 if (prefs_.erase(pref)) 28 registrar_.Remove(pref.c_str(), this); 29 } 30 31 bool PrefSetObserver::IsObserved(const std::string& pref) { 32 return prefs_.count(pref) > 0; 33 } 34 35 bool PrefSetObserver::IsManaged() { 36 for (PrefSet::const_iterator i(prefs_.begin()); i != prefs_.end(); ++i) { 37 const PrefService::Preference* pref = 38 pref_service_->FindPreference(i->c_str()); 39 if (pref && pref->IsManaged()) 40 return true; 41 } 42 return false; 43 } 44 45 // static 46 PrefSetObserver* PrefSetObserver::CreateProxyPrefSetObserver( 47 PrefService* pref_service, 48 NotificationObserver* observer) { 49 PrefSetObserver* pref_set = new PrefSetObserver(pref_service, observer); 50 pref_set->AddPref(prefs::kProxy); 51 52 return pref_set; 53 } 54 55 // static 56 PrefSetObserver* PrefSetObserver::CreateDefaultSearchPrefSetObserver( 57 PrefService* pref_service, 58 NotificationObserver* observer) { 59 PrefSetObserver* pref_set = new PrefSetObserver(pref_service, observer); 60 pref_set->AddPref(prefs::kDefaultSearchProviderEnabled); 61 pref_set->AddPref(prefs::kDefaultSearchProviderName); 62 pref_set->AddPref(prefs::kDefaultSearchProviderKeyword); 63 pref_set->AddPref(prefs::kDefaultSearchProviderSearchURL); 64 pref_set->AddPref(prefs::kDefaultSearchProviderSuggestURL); 65 pref_set->AddPref(prefs::kDefaultSearchProviderIconURL); 66 pref_set->AddPref(prefs::kDefaultSearchProviderInstantURL); 67 pref_set->AddPref(prefs::kDefaultSearchProviderEncodings); 68 69 return pref_set; 70 } 71 72 void PrefSetObserver::Observe(NotificationType type, 73 const NotificationSource& source, 74 const NotificationDetails& details) { 75 if (observer_) 76 observer_->Observe(type, source, details); 77 } 78
