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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 nsIPrincipal;
interface mozIDOMWindow;
webidl Storage;
%{C++
namespace mozilla {
namespace dom {
class SessionStorageCache;
} // namespace dom
} // namespace mozilla
%}
native SessionStorageCacheAddRefed(RefPtr<mozilla::dom::SessionStorageCache>);
/**
* General purpose interface that has two implementations, for localStorage
* with "@mozilla.org/dom/localStorage-manager;1".
*/
[scriptable, uuid(a20c742e-3ed1-44fb-b897-4080a75b1662)]
interface nsIDOMStorageManager : nsISupports
{
/**
* This starts async preloading of a storage cache for scope
* defined by the principal and storage principal.
*
* Because of how multi-e10s support was implemented in bug 1285898, the
* StorageCache instance can no longer use a timer to keep itself alive. So a
* Storage instance is returned if precaching believes the storage principal may
* have localStorage data. (Previously the StorageCache would be brought into
* existence and kept alive by the timer so that it could be returned if a
* call to createStorage was made due to a request by the page.)
*/
Storage precacheStorage(in nsIPrincipal aPrincipal,
in nsIPrincipal aStoragePrincipal);
/**
* Returns instance of DOM storage object for given principal.
* A new object is always returned and it is ensured there is
* a storage for the scope created.
*
* @param aWindow
* The parent window.
* @param aPrincipal
* Principal to bound storage to.
* @param aStoragePrincipal
* StoragePrincipal to bound storage to.
* @param aDocumentURI
* URL of the demanding document, used for DOM storage event only.
* @param aPrivate
* Whether the demanding document is running in Private Browsing mode or not.
*/
Storage createStorage(in mozIDOMWindow aWindow,
in nsIPrincipal aPrincipal,
in nsIPrincipal aStoragePrincipal,
in AString aDocumentURI,
[optional] in bool aPrivate);
/**
* DEPRECATED. The only good reason to use this was if you were writing a
* test and wanted to hackily determine if a preload happened. That's now
* covered by `nsILocalStorageManager.isPreloaded` and you should use that if
* that's what you want. If LSNG is in use, this will throw.
*
* Returns instance of DOM storage object for given principal.
* If there is no storage managed for the scope, then null is returned and
* no object is created. Otherwise, an object (new) for the existing storage
* scope is returned.
*
* @param aWindow
* The parent window.
* @param aPrincipal
* Principal to bound storage to.
* @param aStoragePrincipal
* StoragePrincipal to bound storage to.
* @param aPrivate
* Whether the demanding document is running in Private Browsing mode or not.
*/
Storage getStorage(in mozIDOMWindow aWindow,
in nsIPrincipal aPrincipal,
in nsIPrincipal aStoragePrincipal,
[optional] in bool aPrivate);
/**
* Clones given storage into this storage manager.
*
* @param aStorageToCloneFrom
* The storage to copy all items from into this manager. Manager will then
* return a new and independent object that contains snapshot of data from
* the moment this method was called. Modification to this new object will
* not affect the original storage content we cloned from and vice versa.
*/
void cloneStorage(in Storage aStorageToCloneFrom);
/**
* Returns true if the storage belongs to the given principal and is managed
* (i.e. has been created and is cached) by this storage manager.
*
* @param aPrincipal
* Principal to check the storage against.
* @param aStorage
* The storage object to examine.
*
* @result
* true when the storage object is bound with the principal and is managed
* by this storage manager.
* false otherwise
*/
bool checkStorage(in nsIPrincipal aPrincipal,
in Storage aStorage);
};
[uuid(b3bfbbd0-e738-4cbf-b0f0-b65f25265e82)]
interface nsIDOMSessionStorageManager : nsIDOMStorageManager {
/**
* Returns a SessionStorageCache object for the principal scope.
*
* @param aPrincipal
* Principal to bound storage to.
* @param aStoragePrincipal
* StoragePrincipal to bound storage to.
*/
[noscript]
SessionStorageCacheAddRefed getSessionStorageCache(in nsIPrincipal aPrincipal,
in nsIPrincipal aStoragePrincipal);
};
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