зеркало из https://github.com/mozilla/gecko-dev.git
143 строки
4.1 KiB
C++
143 строки
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_quota_persistencetype_h__
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#define mozilla_dom_quota_persistencetype_h__
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#include "mozilla/dom/quota/QuotaCommon.h"
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#include "mozilla/dom/StorageTypeBinding.h"
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BEGIN_QUOTA_NAMESPACE
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enum PersistenceType {
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PERSISTENCE_TYPE_PERSISTENT = 0,
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PERSISTENCE_TYPE_TEMPORARY,
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PERSISTENCE_TYPE_DEFAULT,
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// Only needed for IPC serialization helper, should never be used in code.
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PERSISTENCE_TYPE_INVALID
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};
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static const PersistenceType kBestEffortPersistenceTypes[] = {
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PERSISTENCE_TYPE_TEMPORARY, PERSISTENCE_TYPE_DEFAULT};
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static const PersistenceType kAllPersistenceTypes[] = {
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PERSISTENCE_TYPE_PERSISTENT, PERSISTENCE_TYPE_TEMPORARY,
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PERSISTENCE_TYPE_DEFAULT};
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inline void PersistenceTypeToText(PersistenceType aPersistenceType,
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nsACString& aText) {
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switch (aPersistenceType) {
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case PERSISTENCE_TYPE_PERSISTENT:
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aText.AssignLiteral("persistent");
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return;
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case PERSISTENCE_TYPE_TEMPORARY:
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aText.AssignLiteral("temporary");
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return;
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case PERSISTENCE_TYPE_DEFAULT:
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aText.AssignLiteral("default");
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return;
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case PERSISTENCE_TYPE_INVALID:
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default:
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MOZ_CRASH("Bad persistence type value!");
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}
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}
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class PersistenceTypeString : public nsCString {
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public:
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explicit PersistenceTypeString(PersistenceType aPersistenceType) {
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PersistenceTypeToText(aPersistenceType, *this);
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}
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};
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inline PersistenceType PersistenceTypeFromText(const nsACString& aText) {
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if (aText.EqualsLiteral("persistent")) {
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return PERSISTENCE_TYPE_PERSISTENT;
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}
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if (aText.EqualsLiteral("temporary")) {
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return PERSISTENCE_TYPE_TEMPORARY;
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}
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if (aText.EqualsLiteral("default")) {
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return PERSISTENCE_TYPE_DEFAULT;
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}
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MOZ_CRASH("Should never get here!");
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}
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inline nsresult PersistenceTypeFromInt32(int32_t aInt,
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PersistenceType& aPersistenceType) {
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static_assert(
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PERSISTENCE_TYPE_PERSISTENT == 0 && PERSISTENCE_TYPE_TEMPORARY == 1 &&
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PERSISTENCE_TYPE_DEFAULT == 2 && PERSISTENCE_TYPE_INVALID == 3,
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"Incorrect enum values!");
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if (aInt < PERSISTENCE_TYPE_PERSISTENT || aInt > PERSISTENCE_TYPE_DEFAULT) {
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return NS_ERROR_FAILURE;
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}
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aPersistenceType = static_cast<PersistenceType>(aInt);
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return NS_OK;
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}
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inline nsresult NullablePersistenceTypeFromText(
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const nsACString& aText, Nullable<PersistenceType>* aPersistenceType) {
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if (aText.IsVoid()) {
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*aPersistenceType = Nullable<PersistenceType>();
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return NS_OK;
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}
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if (aText.EqualsLiteral("persistent")) {
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*aPersistenceType = Nullable<PersistenceType>(PERSISTENCE_TYPE_PERSISTENT);
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return NS_OK;
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}
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if (aText.EqualsLiteral("temporary")) {
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*aPersistenceType = Nullable<PersistenceType>(PERSISTENCE_TYPE_TEMPORARY);
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return NS_OK;
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}
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if (aText.EqualsLiteral("default")) {
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*aPersistenceType = Nullable<PersistenceType>(PERSISTENCE_TYPE_DEFAULT);
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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inline mozilla::dom::StorageType PersistenceTypeToStorage(
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PersistenceType aPersistenceType) {
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return mozilla::dom::StorageType(static_cast<int>(aPersistenceType));
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}
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inline PersistenceType PersistenceTypeFromStorage(
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const Optional<mozilla::dom::StorageType>& aStorage) {
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if (aStorage.WasPassed()) {
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return PersistenceType(static_cast<int>(aStorage.Value()));
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}
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return PERSISTENCE_TYPE_DEFAULT;
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}
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inline PersistenceType ComplementaryPersistenceType(
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PersistenceType aPersistenceType) {
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MOZ_ASSERT(aPersistenceType == PERSISTENCE_TYPE_DEFAULT ||
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aPersistenceType == PERSISTENCE_TYPE_TEMPORARY);
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if (aPersistenceType == PERSISTENCE_TYPE_DEFAULT) {
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return PERSISTENCE_TYPE_TEMPORARY;
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}
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return PERSISTENCE_TYPE_DEFAULT;
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}
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END_QUOTA_NAMESPACE
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#endif // mozilla_dom_quota_persistencetype_h__
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