pref_value_map.cc revision 7d4cd473f85ac64c3747c96c277f9e506a0d2246
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/prefs/pref_value_map.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/scoped_ptr.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/stl_util.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/values.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PrefValueMap::PrefValueMap() {} 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PrefValueMap::~PrefValueMap() { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Clear(); 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 187d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)bool PrefValueMap::GetValue(const std::string& key, 197d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const base::Value** value) const { 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Map::const_iterator entry = prefs_.find(key); 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (entry != prefs_.end()) { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (value) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *value = entry->second; 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 307d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)bool PrefValueMap::GetValue(const std::string& key, base::Value** value) { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Map::const_iterator entry = prefs_.find(key); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (entry != prefs_.end()) { 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (value) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *value = entry->second; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 417d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)bool PrefValueMap::SetValue(const std::string& key, base::Value* value) { 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(value); 437d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) scoped_ptr<base::Value> value_ptr(value); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Map::iterator entry = prefs_.find(key); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (entry != prefs_.end()) { 467d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) if (base::Value::Equals(entry->second, value)) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete entry->second; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) entry->second = value_ptr.release(); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prefs_[key] = value_ptr.release(); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PrefValueMap::RemoveValue(const std::string& key) { 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Map::iterator entry = prefs_.find(key); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (entry != prefs_.end()) { 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete entry->second; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prefs_.erase(entry); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefValueMap::Clear() { 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STLDeleteValues(&prefs_); 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prefs_.clear(); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefValueMap::Swap(PrefValueMap* other) { 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prefs_.swap(other->prefs_); 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PrefValueMap::iterator PrefValueMap::begin() { 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return prefs_.begin(); 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PrefValueMap::iterator PrefValueMap::end() { 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return prefs_.end(); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PrefValueMap::const_iterator PrefValueMap::begin() const { 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return prefs_.begin(); 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PrefValueMap::const_iterator PrefValueMap::end() const { 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return prefs_.end(); 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PrefValueMap::GetBoolean(const std::string& key, 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool* value) const { 957d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const base::Value* stored_value = NULL; 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GetValue(key, &stored_value) && stored_value->GetAsBoolean(value); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefValueMap::SetBoolean(const std::string& key, bool value) { 1002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SetValue(key, new base::FundamentalValue(value)); 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PrefValueMap::GetString(const std::string& key, 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string* value) const { 1057d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const base::Value* stored_value = NULL; 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GetValue(key, &stored_value) && stored_value->GetAsString(value); 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefValueMap::SetString(const std::string& key, 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& value) { 1112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SetValue(key, new base::StringValue(value)); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PrefValueMap::GetInteger(const std::string& key, int* value) const { 1157d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const base::Value* stored_value = NULL; 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GetValue(key, &stored_value) && stored_value->GetAsInteger(value); 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefValueMap::SetInteger(const std::string& key, const int value) { 1202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SetValue(key, new base::FundamentalValue(value)); 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PrefValueMap::GetDifferingKeys( 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const PrefValueMap* other, 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::vector<std::string>* differing_keys) const { 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) differing_keys->clear(); 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Walk over the maps in lockstep, adding everything that is different. 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Map::const_iterator this_pref(prefs_.begin()); 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Map::const_iterator other_pref(other->prefs_.begin()); 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) while (this_pref != prefs_.end() && other_pref != other->prefs_.end()) { 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const int diff = this_pref->first.compare(other_pref->first); 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (diff == 0) { 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!this_pref->second->Equals(other_pref->second)) 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) differing_keys->push_back(this_pref->first); 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++this_pref; 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++other_pref; 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else if (diff < 0) { 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) differing_keys->push_back(this_pref->first); 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++this_pref; 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else if (diff > 0) { 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) differing_keys->push_back(other_pref->first); 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++other_pref; 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Add the remaining entries. 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for ( ; this_pref != prefs_.end(); ++this_pref) 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) differing_keys->push_back(this_pref->first); 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for ( ; other_pref != other->prefs_.end(); ++other_pref) 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) differing_keys->push_back(other_pref->first); 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 153