gecko-dev/uriloader/prefetch/nsIOfflineCacheUpdate.idl

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/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Mozilla Corporation
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dave Camp <dcamp@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
interface nsIURI;
interface nsIDOMNode;
interface nsIDOMDocument;
interface nsIDOMLoadStatus;
interface nsIOfflineCacheUpdate;
interface nsIPrincipal;
interface nsIPrefBranch;
[scriptable, uuid(a28abeaf-a0b4-4440-b2fe-bc78249710ea)]
interface nsIOfflineCacheUpdateObserver : nsISupports {
/**
* There was an error updating the cache.
*
* @param aUpdate
* The nsIOfflineCacheUpdate being processed.
*/
void error(in nsIOfflineCacheUpdate aUpdate);
/**
* The manifest is being checked for updates
*
* @param aUpdate
* The nsIOfflineCacheUpdate being processed.
*/
void checking(in nsIOfflineCacheUpdate aUpdate);
/**
* No update was necessary.
*
* @param aUpdate
* The nsIOfflineCacheUpdate being processed.
*/
void noUpdate(in nsIOfflineCacheUpdate aUpdate);
/**
* The cache group is now obsolete.
*
* @param aUpdate
* The nsIOfflineCacheUpdate being processed.
*/
void obsolete(in nsIOfflineCacheUpdate aUpdate);
/**
* Starting to download resources
*
* @param aUpdate
* The nsIOfflineCacheUpdate being processed.
*/
void downloading(in nsIOfflineCacheUpdate aUpdate);
/**
* An item has started downloading.
*
* @param aUpdate
* The nsIOfflineCacheUpdate being processed.
* @param aItem
* load status for the item that is being downloaded.
*/
void itemStarted(in nsIOfflineCacheUpdate aUpdate,
in nsIDOMLoadStatus aItem);
/**
* An item has finished loading.
*
* @param aUpdate
* The nsIOfflineCacheUpdate being processed.
* @param aItem
* load status for the item that completed.
*/
void itemCompleted(in nsIOfflineCacheUpdate aUpdate,
in nsIDOMLoadStatus aItem);
};
/**
* An nsIOfflineCacheUpdate is used to update an application's offline
* resources.
*
* It can be used to perform partial or complete updates.
*
* Each update object maintains a list of nsIDOMLoadStatus items for the
* resources it is updating. The list of these items will be available
* after the object is scheduled.
*
* One update object will be updating at a time. The active object will
* load its items one by one, sending itemCompleted() to any registered
* observers.
*/
[scriptable, uuid(877261bb-b952-4d27-847e-859bdd47c0ec)]
interface nsIOfflineCacheUpdate : nsISupports {
/**
* Fetch the status of the running update. This will return a value
* defined in nsIDOMOfflineResourceList.
*/
readonly attribute unsigned short status;
/**
* TRUE if the update is being used to add specific resources.
* FALSE if the complete cache update process is happening.
*/
readonly attribute boolean partial;
/**
* TRUE if this is an upgrade attempt, FALSE if it is a new cache
* attempt.
*/
readonly attribute boolean isUpgrade;
/**
* The domain being updated, and the domain that will own any URIs added
* with this update.
*/
readonly attribute ACString updateDomain;
/**
* The manifest for the offline application being updated.
*/
readonly attribute nsIURI manifestURI;
/**
* TRUE if the cache update completed successfully.
*/
readonly attribute boolean succeeded;
/**
* Initialize the update.
*
* @param aManifestURI
* The manifest URI to be checked.
* @param aDocumentURI
* The page that is requesting the update.
*/
void init(in nsIURI aManifestURI, in nsIURI aDocumentURI);
/**
* Initialize the update for partial processing.
*
* @param aManifestURI
* The manifest URI of the related cache.
* @param aClientID
* Client ID of the cache to store resource to. This ClientID
* must be ID of cache in the cache group identified by
* the manifest URI passed in the first parameter.
* @param aDocumentURI
* The page that is requesting the update. May be null
* when this information is unknown.
*/
void initPartial(in nsIURI aManifestURI, in ACString aClientID, in nsIURI aDocumentURI);
/**
* Add a dynamic URI to the offline cache as part of the update.
*
* @param aURI
* The URI to add.
*/
void addDynamicURI(in nsIURI aURI);
/**
* Add the update to the offline update queue. An offline-cache-update-added
* event will be sent to the observer service.
*/
void schedule();
/**
* Access to the list of items in the update.
*/
readonly attribute unsigned long count;
nsIDOMLoadStatus item(in unsigned long index);
/**
* Observe loads that are added to the update.
*
* @param aObserver
* object that notifications will be sent to.
* @param aHoldWeak
* TRUE if you want the update to hold a weak reference to the
* observer, FALSE for a strong reference.
*/
void addObserver(in nsIOfflineCacheUpdateObserver aObserver,
in boolean aHoldWeak);
/**
* Remove an observer from the update.
*
* @param aObserver
* the observer to remove.
*/
void removeObserver(in nsIOfflineCacheUpdateObserver aObserver);
};
[scriptable, uuid(6fd2030f-7b00-4102-a0e3-d73078821eb1)]
interface nsIOfflineCacheUpdateService : nsISupports {
/**
* Constants for the offline-app permission.
*
* XXX: This isn't a great place for this, but it's really the only
* private offline-app-related interface
*/
/**
* Allow the domain to use offline APIs, and don't warn about excessive
* usage.
*/
const unsigned long ALLOW_NO_WARN = 3;
/**
* Access to the list of cache updates that have been scheduled.
*/
readonly attribute unsigned long numUpdates;
nsIOfflineCacheUpdate getUpdate(in unsigned long index);
/**
* Schedule a cache update for a given offline manifest. If an
* existing update is scheduled or running, that update will be returned.
* Otherwise a new update will be scheduled.
*/
nsIOfflineCacheUpdate scheduleUpdate(in nsIURI aManifestURI,
in nsIURI aDocumentURI);
/**
* Schedule a cache update for a manifest when the document finishes
* loading.
*/
void scheduleOnDocumentStop(in nsIURI aManifestURI,
in nsIURI aDocumentURI,
in nsIDOMDocument aDocument);
/**
* Checks whether a principal should have access to the offline
* cache.
* @param aPrincipal
* The principal to check.
* @param aPrefBranch
* The pref branch to use to check the
* offline-apps.allow_by_default pref. If not specified,
* the pref service will be used.
*/
boolean offlineAppAllowed(in nsIPrincipal aPrincipal,
in nsIPrefBranch aPrefBranch);
/**
* Checks whether a document at the given URI should have access
* to the offline cache.
* @param aURI
* The URI to check
* @param aPrefBranch
* The pref branch to use to check the
* offline-apps.allow_by_default pref. If not specified,
* the pref service will be used.
*/
boolean offlineAppAllowedForURI(in nsIURI aURI,
in nsIPrefBranch aPrefBranch);
};