pref_set_observer.cc revision 731df977c0511bca2206b5f333555b1205ff1f43 
1// Copyright (c) 2010 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/notification_type.h"
8#include "chrome/common/pref_names.h"
9
10PrefSetObserver::PrefSetObserver(PrefService* pref_service,
11                                 NotificationObserver* observer)
12    : pref_service_(pref_service),
13      observer_(observer) {
14  registrar_.Init(pref_service);
15}
16
17PrefSetObserver::~PrefSetObserver() {}
18
19void 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
26void PrefSetObserver::RemovePref(const std::string& pref) {
27  if (prefs_.erase(pref))
28    registrar_.Remove(pref.c_str(), this);
29}
30
31bool PrefSetObserver::IsObserved(const std::string& pref) {
32  return prefs_.count(pref) > 0;
33}
34
35bool 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
46PrefSetObserver* PrefSetObserver::CreateProxyPrefSetObserver(
47    PrefService* pref_service,
48    NotificationObserver* observer) {
49  PrefSetObserver* pref_set = new PrefSetObserver(pref_service, observer);
50  pref_set->AddPref(prefs::kNoProxyServer);
51  pref_set->AddPref(prefs::kProxyAutoDetect);
52  pref_set->AddPref(prefs::kProxyServer);
53  pref_set->AddPref(prefs::kProxyPacUrl);
54  pref_set->AddPref(prefs::kProxyBypassList);
55
56  return pref_set;
57}
58
59// static
60PrefSetObserver* PrefSetObserver::CreateDefaultSearchPrefSetObserver(
61    PrefService* pref_service,
62    NotificationObserver* observer) {
63  PrefSetObserver* pref_set = new PrefSetObserver(pref_service, observer);
64  pref_set->AddPref(prefs::kDefaultSearchProviderEnabled);
65  pref_set->AddPref(prefs::kDefaultSearchProviderName);
66  pref_set->AddPref(prefs::kDefaultSearchProviderKeyword);
67  pref_set->AddPref(prefs::kDefaultSearchProviderSearchURL);
68  pref_set->AddPref(prefs::kDefaultSearchProviderSuggestURL);
69  pref_set->AddPref(prefs::kDefaultSearchProviderIconURL);
70  pref_set->AddPref(prefs::kDefaultSearchProviderEncodings);
71
72  return pref_set;
73}
74
75void PrefSetObserver::Observe(NotificationType type,
76                              const NotificationSource& source,
77                              const NotificationDetails& details) {
78  if (observer_)
79    observer_->Observe(type, source, details);
80}
81