src/chrome/browser/extensions/extension_pref_store.cc

   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 "chrome/browser/extensions/extension_pref_store.h"
   6
   7 #include "base/values.h"
   8 #include "chrome/browser/extensions/extension_pref_value_map.h"
   9
  10 ExtensionPrefStore::ExtensionPrefStore(
  11     ExtensionPrefValueMap* extension_pref_value_map,
  12     bool incognito_pref_store)
  13     : extension_pref_value_map_(extension_pref_value_map),
  14       incognito_pref_store_(incognito_pref_store) {
  15   extension_pref_value_map_->AddObserver(this);
  16 }
  17
  18 void ExtensionPrefStore::OnInitializationCompleted() {
  19   NotifyInitializationCompleted();
  20 }
  21
  22 void ExtensionPrefStore::OnPrefValueChanged(const std::string& key) {
  23   CHECK(extension_pref_value_map_);
  24   const Value *winner =
  25       extension_pref_value_map_->GetEffectivePrefValue(key,
  26                                                        incognito_pref_store_,
  27                                                        NULL);
  28   if (winner)
  29     SetValue(key, winner->DeepCopy());
  30   else
  31     RemoveValue(key);
  32 }
  33
  34 void ExtensionPrefStore::OnExtensionPrefValueMapDestruction() {
  35   CHECK(extension_pref_value_map_);
  36   extension_pref_value_map_->RemoveObserver(this);
  37   extension_pref_value_map_ = NULL;
  38 }
  39
  40 ExtensionPrefStore::~ExtensionPrefStore() {
  41   if (extension_pref_value_map_)
  42     extension_pref_value_map_->RemoveObserver(this);
  43 }