64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/prefs/pref_registry.h"
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#include "base/logging.h"
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#include "base/prefs/default_pref_store.h"
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#include "base/prefs/pref_store.h"
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#include "base/values.h"
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PrefRegistry::PrefRegistry()
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: defaults_(new DefaultPrefStore()) {
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}
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PrefRegistry::~PrefRegistry() {
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}
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scoped_refptr<PrefStore> PrefRegistry::defaults() {
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return defaults_.get();
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}
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PrefRegistry::const_iterator PrefRegistry::begin() const {
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return defaults_->begin();
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}
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PrefRegistry::const_iterator PrefRegistry::end() const {
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return defaults_->end();
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}
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void PrefRegistry::SetDefaultPrefValue(const char* pref_name,
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base::Value* value) {
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DCHECK(value);
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if (DCHECK_IS_ON()) {
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const base::Value* current_value = NULL;
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DCHECK(defaults_->GetValue(pref_name, ¤t_value))
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<< "Setting default for unregistered pref: " << pref_name;
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DCHECK(value->IsType(current_value->GetType()))
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<< "Wrong type for new default: " << pref_name;
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}
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defaults_->ReplaceDefaultValue(pref_name, make_scoped_ptr(value));
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}
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void PrefRegistry::SetRegistrationCallback(
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const RegistrationCallback& callback) {
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registration_callback_ = callback;
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}
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void PrefRegistry::RegisterPreference(const char* path,
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base::Value* default_value) {
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base::Value::Type orig_type = default_value->GetType();
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DCHECK(orig_type != base::Value::TYPE_NULL &&
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orig_type != base::Value::TYPE_BINARY) <<
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"invalid preference type: " << orig_type;
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DCHECK(!defaults_->GetValue(path, NULL)) <<
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"Trying to register a previously registered pref: " << path;
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defaults_->SetDefaultValue(path, make_scoped_ptr(default_value));
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if (!registration_callback_.is_null())
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registration_callback_.Run(path, default_value);
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}
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