android_webview/browser/aw_pref_store.cc

   1 // Copyright (c) 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 "android_webview/browser/aw_pref_store.h"
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "base/values.h"
   9
  10 AwPrefStore::AwPrefStore() {}
  11
  12 AwPrefStore::~AwPrefStore() {}
  13
  14 bool AwPrefStore::GetValue(const std::string& key,
  15                            const base::Value** value) const {
  16   return prefs_.GetValue(key, value);
  17 }
  18
  19 bool AwPrefStore::GetMutableValue(const std::string& key,
  20                                   base::Value** value) {
  21   return prefs_.GetValue(key, value);
  22 }
  23
  24 void AwPrefStore::AddObserver(PrefStore::Observer* observer) {
  25   observers_.AddObserver(observer);
  26 }
  27
  28 void AwPrefStore::RemoveObserver(PrefStore::Observer* observer) {
  29   observers_.RemoveObserver(observer);
  30 }
  31
  32 bool AwPrefStore::HasObservers() const {
  33   return observers_.might_have_observers();
  34 }
  35
  36 bool AwPrefStore::IsInitializationComplete() const {
  37   return true;
  38 }
  39
  40 void AwPrefStore::SetValue(const std::string& key,
  41                            scoped_ptr<base::Value> value,
  42                            uint32 flags) {
  43   DCHECK(value);
  44   if (prefs_.SetValue(key, value.Pass()))
  45     ReportValueChanged(key, flags);
  46 }
  47
  48 void AwPrefStore::SetValueSilently(const std::string& key,
  49                                    scoped_ptr<base::Value> value,
  50                                    uint32 flags) {
  51   prefs_.SetValue(key, value.Pass());
  52 }
  53
  54 void AwPrefStore::RemoveValue(const std::string& key, uint32 flags) {
  55   if (prefs_.RemoveValue(key))
  56     ReportValueChanged(key, flags);
  57 }
  58
  59 bool AwPrefStore::ReadOnly() const {
  60   return false;
  61 }
  62
  63 PersistentPrefStore::PrefReadError AwPrefStore::GetReadError() const {
  64   return PersistentPrefStore::PREF_READ_ERROR_NONE;
  65 }
  66
  67 PersistentPrefStore::PrefReadError AwPrefStore::ReadPrefs() {
  68   return PersistentPrefStore::PREF_READ_ERROR_NONE;
  69 }
  70
  71 void AwPrefStore::ReadPrefsAsync(ReadErrorDelegate* error_delegate_raw) {
  72 }
  73
  74 void AwPrefStore::ReportValueChanged(const std::string& key, uint32 flags) {
  75   FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
  76 }