gecko/dom/interfaces/storage/nsIDOMStorageManager.idl

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
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*
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*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
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* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
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* Contributor(s):
*
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* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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#include "nsISupports.idl"
interface nsIDOMStorage;
interface nsIPrincipal;
[scriptable, uuid(c8e54beb-48f3-4538-a0ce-d6229f4d8f45)]
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);
};