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/pref_registry.h" 6 7 #include "base/logging.h" 8 #include "base/prefs/default_pref_store.h" 9 #include "base/prefs/pref_store.h" 10 #include "base/values.h" 11 PrefRegistry()12PrefRegistry::PrefRegistry() 13 : defaults_(new DefaultPrefStore()) { 14 } 15 ~PrefRegistry()16PrefRegistry::~PrefRegistry() { 17 } 18 defaults()19scoped_refptr<PrefStore> PrefRegistry::defaults() { 20 return defaults_.get(); 21 } 22 begin() const23PrefRegistry::const_iterator PrefRegistry::begin() const { 24 return defaults_->begin(); 25 } 26 end() const27PrefRegistry::const_iterator PrefRegistry::end() const { 28 return defaults_->end(); 29 } 30 SetDefaultPrefValue(const char * pref_name,base::Value * value)31void PrefRegistry::SetDefaultPrefValue(const char* pref_name, 32 base::Value* value) { 33 DCHECK(value); 34 const base::Value* current_value = NULL; 35 DCHECK(defaults_->GetValue(pref_name, ¤t_value)) 36 << "Setting default for unregistered pref: " << pref_name; 37 DCHECK(value->IsType(current_value->GetType())) 38 << "Wrong type for new default: " << pref_name; 39 40 defaults_->ReplaceDefaultValue(pref_name, make_scoped_ptr(value)); 41 } 42 RegisterPreference(const char * path,base::Value * default_value)43void PrefRegistry::RegisterPreference(const char* path, 44 base::Value* default_value) { 45 base::Value::Type orig_type = default_value->GetType(); 46 DCHECK(orig_type != base::Value::TYPE_NULL && 47 orig_type != base::Value::TYPE_BINARY) << 48 "invalid preference type: " << orig_type; 49 DCHECK(!defaults_->GetValue(path, NULL)) << 50 "Trying to register a previously registered pref: " << path; 51 52 defaults_->SetDefaultValue(path, make_scoped_ptr(default_value)); 53 } 54