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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 
PrefSetObserver(PrefService * pref_service,NotificationObserver * observer)10 PrefSetObserver::PrefSetObserver(PrefService* pref_service,
11                                  NotificationObserver* observer)
12     : pref_service_(pref_service),
13       observer_(observer) {
14   registrar_.Init(pref_service);
15 }
16 
~PrefSetObserver()17 PrefSetObserver::~PrefSetObserver() {}
18 
AddPref(const std::string & pref)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 
RemovePref(const std::string & pref)26 void PrefSetObserver::RemovePref(const std::string& pref) {
27   if (prefs_.erase(pref))
28     registrar_.Remove(pref.c_str(), this);
29 }
30 
IsObserved(const std::string & pref)31 bool PrefSetObserver::IsObserved(const std::string& pref) {
32   return prefs_.count(pref) > 0;
33 }
34 
IsManaged()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
CreateProxyPrefSetObserver(PrefService * pref_service,NotificationObserver * observer)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
CreateDefaultSearchPrefSetObserver(PrefService * pref_service,NotificationObserver * observer)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 
Observe(NotificationType type,const NotificationSource & source,const NotificationDetails & details)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