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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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 nsIQuotaRequest;
interface nsIQuotaCallback;
interface nsIQuotaUsageCallback;
interface nsIQuotaUsageRequest;
[scriptable, builtinclass, uuid(1b3d0a38-8151-4cf9-89fa-4f92c2ef0e7e)]
interface nsIQuotaManagerService : nsISupports
{
/**
* Asynchronously retrieves storage name and returns it as a plain string.
*
* If the dom.quotaManager.testing preference is not true the call will be
* a no-op.
*/
[must_use] nsIQuotaRequest
storageName();
/**
* Check if storage is initialized.
*
* If the dom.quotaManager.testing preference is not true the call will be
* a no-op.
*/
[must_use] nsIQuotaRequest
storageInitialized();
/**
* Check if temporary storage is initialized.
*
* If the dom.quotaManager.testing preference is not true the call will be
* a no-op.
*/
[must_use] nsIQuotaRequest
temporaryStorageInitialized();
/**
* Initializes storage directory. This can be used in tests to verify
* upgrade methods.
*
* If the dom.quotaManager.testing preference is not true the call will be
* a no-op.
*/
[must_use] nsIQuotaRequest
init();
/**
* Initializes temporary storage. This can be used in tests to verify
* temporary storage initialization.
*
* If the dom.quotaManager.testing preference is not true the call will be
* a no-op.
*/
[must_use] nsIQuotaRequest
initTemporaryStorage();
/**
* Initializes storage directory, temporary storage (if persistence type is
* default or temporary) and directory for the given origin. This can be used
* in tests to verify origin initialization.
*
* If the dom.quotaManager.testing preference is not true the call will be
* a no-op.
*
* @param aPrincipal
* A principal for the origin whose directory is to be initialized.
* @param aPersistenceType
* A string that tells what persistence type of origin will be
* initialized.
* @param aClientType
* An optional string that tells what client type of origin will be
* initialized.
*/
[must_use] nsIQuotaRequest
initStorageAndOrigin(in nsIPrincipal aPrincipal,
in ACString aPersistenceType,
[optional] in AString aClientType);
/**
* Schedules an asynchronous callback that will inspect all origins and
* return the total amount of disk space being used by storages for each
* origin separately.
*
* @param aCallback
* The callback that will be called when the usage is available.
* @param aGetAll
* An optional boolean to indicate inspection of all origins,
* including internal ones.
*/
[must_use] nsIQuotaUsageRequest
getUsage(in nsIQuotaUsageCallback aCallback,
[optional] in boolean aGetAll);
/**
* Schedules an asynchronous callback that will return the total amount of
* disk space being used by storages for the given origin.
*
* @param aPrincipal
* A principal for the origin whose usage is being queried.
* @param aCallback
* The callback that will be called when the usage is available.
* @param aFromMemory
* An optional flag to indicate whether the cached usage should be
* obtained. The default value is false. Note that this operation may
* still be delayed by other operations on the QM I/O thread that are
* peforming I/O.
* Note: Origin usage here represents total usage of an origin. However,
* cached usage here represents only non-persistent usage of an origin.
*/
[must_use] nsIQuotaUsageRequest
getUsageForPrincipal(in nsIPrincipal aPrincipal,
in nsIQuotaUsageCallback aCallback,
[optional] in boolean aFromMemory);
/**
* Asynchronously lists all origins and returns them as plain strings.
*/
[must_use] nsIQuotaRequest
listOrigins();
/**
* Removes all storages. The files may not be deleted immediately depending
* on prohibitive concurrent operations.
* Be careful, this removes *all* the data that has ever been stored!
*
* If the dom.quotaManager.testing preference is not true the call will be
* a no-op.
*/
[must_use] nsIQuotaRequest
clear();
/**
* Removes all storages stored for the given pattern. The files may not be
* deleted immediately depending on prohibitive concurrent operations. In
* terms of locks, it will get an exclusive multi directory lock for given
* pattern. For example, given pattern {"userContextId":1007} and set of 3
* "http://www.example.org^userContextId=1008"], the method will only lock 2
*
* @param aPattern
* A pattern for the origins whose storages are to be cleared.
* Currently this is expected to be a JSON representation of the
* OriginAttributesPatternDictionary defined in ChromeUtils.webidl.
*/
[must_use] nsIQuotaRequest
clearStoragesForOriginAttributesPattern(in AString aPattern);
/**
* Removes all storages stored for the given principal. The files may not be
* deleted immediately depending on prohibitive concurrent operations.
*
* @param aPrincipal
* A principal for the origin whose storages are to be cleared.
* @param aPersistenceType
* An optional string that tells what persistence type of storages
* will be cleared. If omitted (or void), all persistence types will
* be cleared for the principal. If a single persistence type
* ("persistent", "temporary", or "default") is provided, then only
* that persistence directory will be considered. Note that
* "persistent" is different than being "persisted" via persist() and
* is only for chrome principals. See bug 1354500 for more info.
* In general, null is the right thing to pass here.
* @param aClientType
* An optional string that tells what client type of storages
* will be cleared. If omitted (or void), all client types will be
* cleared for the principal. If a single client type is provided
* from Client.h, then only that client's storage will be cleared.
* If you want to clear multiple client types (but not all), then you
* must call this method multiple times.
* @param aClearAll
* An optional boolean to indicate clearing all storages under the
* given origin.
*/
[must_use] nsIQuotaRequest
clearStoragesForPrincipal(in nsIPrincipal aPrincipal,
[optional] in ACString aPersistenceType,
[optional] in AString aClientType,
[optional] in boolean aClearAll);
/**
* Resets quota and storage management. This can be used to force
* reinitialization of the temp storage, for example when the pref for
* overriding the temp storage limit has changed.
* Be carefull, this invalidates all live storages!
*
* If the dom.quotaManager.testing preference is not true the call will be
* a no-op.
*/
[must_use] nsIQuotaRequest
reset();
/**
* Resets all storages stored for the given principal.
*
* If the dom.quotaManager.testing preference is not true the call will be
* a no-op.
*
* @param aPrincipal
* A principal for the origin whose storages are to be reset.
* @param aPersistenceType
* An optional string that tells what persistence type of storages
* will be reset. If omitted (or void), all persistence types will
* be cleared for the principal. If a single persistence type
* ("persistent", "temporary", or "default") is provided, then only
* that persistence directory will be considered. Note that
* "persistent" is different than being "persisted" via persist() and
* is only for chrome principals. See bug 1354500 for more info.
* In general, null is the right thing to pass here.
* @param aClientType
* An optional string that tells what client type of storages
* will be reset. If omitted (or void), all client types will be
* cleared for the principal. If a single client type is provided
* from Client.h, then only that client's storage will be cleared.
* If you want to clear multiple client types (but not all), then you
* must call this method multiple times.
*/
[must_use] nsIQuotaRequest
resetStoragesForPrincipal(in nsIPrincipal aPrincipal,
[optional] in ACString aPersistenceType,
[optional] in AString aClientType);
/**
* Check if given origin is persisted.
*
* @param aPrincipal
* A principal for the origin which we want to check.
*/
[must_use] nsIQuotaRequest
persisted(in nsIPrincipal aPrincipal);
/**
* Persist given origin.
*
* @param aPrincipal
* A principal for the origin which we want to persist.
*/
[must_use] nsIQuotaRequest
persist(in nsIPrincipal aPrincipal);
/**
* Given an origin, asynchronously calculate its group quota usage and quota
* limit. An origin's group is the set of all origins that share the same
* eTLD+1. This method is intended to be used for our implementation of the
* StorageManager.estimate() method. When we fix bug 1305665 and stop tracking
* quota limits on a group basis, this method will switch to operating on
* origins. Callers should strongly consider whether they want to be using
* getUsageForPrincipal() instead.
*
* This mechanism uses cached quota values and does not perform any I/O on its
* own, but it may be delayed by QuotaManager operations that do need to
* perform I/O on the QuotaManager I/O thread.
*
* @param aPrincipal
* A principal for the origin (group) which we want to estimate.
*/
[must_use] nsIQuotaRequest
estimate(in nsIPrincipal aPrincipal);
};