gecko-dev/dom/interfaces/storage/nsIDOMStorageManager.idl

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
interface nsIDOMStorage;
interface nsIPrincipal;
[scriptable, uuid(1541da6c-a9fb-4a8f-af9d-4493c981491d)]
interface nsIDOMStorageManager : nsISupports
{
/**
* Return the amount of disk space used by a domain. Usage is checked
* against the domain of the page that set the key (the owner domain), not
* the domain of the storage object.
*
* @param aOwnerDomain The domain to check.
* @returns the space usage of the domain, in bytes.
*/
long getUsage(in AString aOwnerDomain);
/**
* Clear keys owned by offline applications. All data owned by a domain
* with the "offline-app" permission will be removed from the database.
*/
void clearOfflineApps();
/**
* Returns instance of localStorage object for aURI's origin.
* This method ensures there is always only a single instance
* for a single origin.
*/
nsIDOMStorage getLocalStorageForPrincipal(in nsIPrincipal aPrincipal,
in DOMString aDocumentURI,
[optional] in bool aPrivate);
};