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/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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 nsIArray;
interface nsIFile;
interface nsIURI;
/**
* Application caches can store a set of namespace entries that affect
* loads from the application cache. If a load from the cache fails
* to match an exact cache entry, namespaces entries will be searched
* for a substring match, and should be applied appropriately.
*/
[scriptable, uuid(96e4c264-2065-4ce9-93bb-43734c62c4eb)]
interface nsIApplicationCacheNamespace : nsISupports
{
/**
* Items matching this namespace can be fetched from the network
* when loading from this cache. The "data" attribute is unused.
*/
const unsigned long NAMESPACE_BYPASS = 1 << 0;
/**
* Items matching this namespace can be fetched from the network
* when loading from this cache. If the load fails, the cache entry
* specified by the "data" attribute should be loaded instead.
*/
const unsigned long NAMESPACE_FALLBACK = 1 << 1;
/**
* Items matching this namespace should be cached
* opportunistically. Successful toplevel loads of documents
* in this namespace should be placed in the application cache.
* Namespaces specifying NAMESPACE_OPPORTUNISTIC may also specify
* NAMESPACE_FALLBACK to supply a fallback entry.
*/
const unsigned long NAMESPACE_OPPORTUNISTIC = 1 << 2;
/**
* Initialize the namespace.
*/
void init(in unsigned long itemType,
in ACString namespaceSpec,
in ACString data);
/**
* The namespace type.
*/
readonly attribute unsigned long itemType;
/**
* The prefix of this namespace. This should be the asciiSpec of the
* URI prefix.
*/
readonly attribute ACString namespaceSpec;
/**
* Data associated with this namespace, such as a fallback. URI data should
* use the asciiSpec of the URI.
*/
readonly attribute ACString data;
};
/**
* Application caches store resources for offline use. Each
* application cache has a unique client ID for use with
* nsICacheService::openSession() to access the cache's entries.
*
* Each entry in the application cache can be marked with a set of
* types, as discussed in the WHAT-WG offline applications
* specification.
*
* All application caches with the same group ID belong to a cache
* group. Each group has one "active" cache that will service future
* loads. Inactive caches will be removed from the cache when they are
* no longer referenced.
*/
[scriptable, uuid(06568DAE-C374-4383-A122-0CC96C7177F2)]
interface nsIApplicationCache : nsISupports
{
/**
* Init this application cache instance to just hold the group ID and
* the client ID to work just as a handle to the real cache. Used on
* content process to simplify the application cache code.
*/
void initAsHandle(in ACString groupId, in ACString clientId);
/**
* Entries in an application cache can be marked as one or more of
* the following types.
*/
/* This item is the application manifest. */
const unsigned long ITEM_MANIFEST = 1 << 0;
/* This item was explicitly listed in the application manifest. */
const unsigned long ITEM_EXPLICIT = 1 << 1;
/* This item was navigated in a toplevel browsing context, and
* named this cache's group as its manifest. */
const unsigned long ITEM_IMPLICIT = 1 << 2;
/* This item was added by the dynamic scripting API */
const unsigned long ITEM_DYNAMIC = 1 << 3;
/* This item was listed in the application manifest, but named a
* different cache group as its manifest. */
const unsigned long ITEM_FOREIGN = 1 << 4;
/* This item was listed as a fallback entry. */
const unsigned long ITEM_FALLBACK = 1 << 5;
/* This item matched an opportunistic cache namespace and was
* cached accordingly. */
const unsigned long ITEM_OPPORTUNISTIC = 1 << 6;
/**
* URI of the manfiest specifying this application cache.
**/
readonly attribute nsIURI manifestURI;
/**
* The group ID for this cache group. It is an internally generated string
* and cannot be used as manifest URL spec.
**/
readonly attribute ACString groupID;
/**
* The client ID for this application cache. Clients can open a
* session with nsICacheService::createSession() using this client
* ID and a storage policy of STORE_OFFLINE to access this cache.
*/
readonly attribute ACString clientID;
/**
* TRUE if the cache is the active cache for this group.
*/
readonly attribute boolean active;
/**
* The disk usage of the application cache, in bytes.
*/
readonly attribute unsigned long usage;
/**
* Makes this cache the active application cache for this group.
* Future loads associated with this group will come from this
* cache. Other caches from this cache group will be deactivated.
*/
void activate();
/**
* Discard this application cache. Removes all cached resources
* for this cache. If this is the active application cache for the
* group, the group will be removed.
*/
void discard();
/**
* Adds item types to a given entry.
*/
void markEntry(in ACString key, in unsigned long typeBits);
/**
* Removes types from a given entry. If the resulting entry has
* no types left, the entry is removed.
*/
void unmarkEntry(in ACString key, in unsigned long typeBits);
/**
* Gets the types for a given entry.
*/
unsigned long getTypes(in ACString key);
/**
* Returns any entries in the application cache whose type matches
* one or more of the bits in typeBits.
*/
void gatherEntries(in uint32_t typeBits,
out unsigned long count,
[array, size_is(count)] out string keys);
/**
* Add a set of namespace entries to the application cache.
* @param namespaces
* An nsIArray of nsIApplicationCacheNamespace entries.
*/
void addNamespaces(in nsIArray namespaces);
/**
* Get the most specific namespace matching a given key.
*/
nsIApplicationCacheNamespace getMatchingNamespace(in ACString key);
/**
* If set, this offline cache is placed in a different directory
* than the current application profile.
*/
readonly attribute nsIFile profileDirectory;
};
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