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      1 // Copyright (c) 2012 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 "base/prefs/testing_pref_store.h"
      6 
      7 #include "base/memory/scoped_ptr.h"
      8 #include "base/values.h"
      9 
     10 TestingPrefStore::TestingPrefStore()
     11     : read_only_(true),
     12       init_complete_(false) {
     13 }
     14 
     15 bool TestingPrefStore::GetValue(const std::string& key,
     16                                 const base::Value** value) const {
     17   return prefs_.GetValue(key, value);
     18 }
     19 
     20 bool TestingPrefStore::GetMutableValue(const std::string& key,
     21                                        base::Value** value) {
     22   return prefs_.GetValue(key, value);
     23 }
     24 
     25 void TestingPrefStore::AddObserver(PrefStore::Observer* observer) {
     26   observers_.AddObserver(observer);
     27 }
     28 
     29 void TestingPrefStore::RemoveObserver(PrefStore::Observer* observer) {
     30   observers_.RemoveObserver(observer);
     31 }
     32 
     33 bool TestingPrefStore::HasObservers() const {
     34   return observers_.might_have_observers();
     35 }
     36 
     37 bool TestingPrefStore::IsInitializationComplete() const {
     38   return init_complete_;
     39 }
     40 
     41 void TestingPrefStore::SetValue(const std::string& key, base::Value* value) {
     42   if (prefs_.SetValue(key, value))
     43     NotifyPrefValueChanged(key);
     44 }
     45 
     46 void TestingPrefStore::SetValueSilently(const std::string& key,
     47                                         base::Value* value) {
     48   prefs_.SetValue(key, value);
     49 }
     50 
     51 void TestingPrefStore::RemoveValue(const std::string& key) {
     52   if (prefs_.RemoveValue(key))
     53     NotifyPrefValueChanged(key);
     54 }
     55 
     56 bool TestingPrefStore::ReadOnly() const {
     57   return read_only_;
     58 }
     59 
     60 PersistentPrefStore::PrefReadError TestingPrefStore::GetReadError() const {
     61   return PersistentPrefStore::PREF_READ_ERROR_NONE;
     62 }
     63 
     64 PersistentPrefStore::PrefReadError TestingPrefStore::ReadPrefs() {
     65   NotifyInitializationCompleted();
     66   return PersistentPrefStore::PREF_READ_ERROR_NONE;
     67 }
     68 
     69 void TestingPrefStore::ReadPrefsAsync(ReadErrorDelegate* error_delegate_raw) {
     70   scoped_ptr<ReadErrorDelegate> error_delegate(error_delegate_raw);
     71   NotifyInitializationCompleted();
     72 }
     73 
     74 void TestingPrefStore::SetInitializationCompleted() {
     75   init_complete_ = true;
     76   NotifyInitializationCompleted();
     77 }
     78 
     79 void TestingPrefStore::NotifyPrefValueChanged(const std::string& key) {
     80   FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
     81 }
     82 
     83 void TestingPrefStore::NotifyInitializationCompleted() {
     84   FOR_EACH_OBSERVER(Observer, observers_, OnInitializationCompleted(true));
     85 }
     86 
     87 void TestingPrefStore::ReportValueChanged(const std::string& key) {
     88   FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
     89 }
     90 
     91 void TestingPrefStore::SetString(const std::string& key,
     92                                  const std::string& value) {
     93   SetValue(key, new base::StringValue(value));
     94 }
     95 
     96 void TestingPrefStore::SetInteger(const std::string& key, int value) {
     97   SetValue(key, new base::FundamentalValue(value));
     98 }
     99 
    100 void TestingPrefStore::SetBoolean(const std::string& key, bool value) {
    101   SetValue(key, new base::FundamentalValue(value));
    102 }
    103 
    104 bool TestingPrefStore::GetString(const std::string& key,
    105                                  std::string* value) const {
    106   const base::Value* stored_value;
    107   if (!prefs_.GetValue(key, &stored_value) || !stored_value)
    108     return false;
    109 
    110   return stored_value->GetAsString(value);
    111 }
    112 
    113 bool TestingPrefStore::GetInteger(const std::string& key, int* value) const {
    114   const base::Value* stored_value;
    115   if (!prefs_.GetValue(key, &stored_value) || !stored_value)
    116     return false;
    117 
    118   return stored_value->GetAsInteger(value);
    119 }
    120 
    121 bool TestingPrefStore::GetBoolean(const std::string& key, bool* value) const {
    122   const base::Value* stored_value;
    123   if (!prefs_.GetValue(key, &stored_value) || !stored_value)
    124     return false;
    125 
    126   return stored_value->GetAsBoolean(value);
    127 }
    128 
    129 void TestingPrefStore::set_read_only(bool read_only) {
    130   read_only_ = read_only;
    131 }
    132 
    133 TestingPrefStore::~TestingPrefStore() {}
    134