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/* -*- Mode: C++; 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 */
#include "nsISupports.idl"
interface imgIRequest;
interface nsIPrincipal;
interface nsIProperties;
interface nsIURI;
webidl Document;
%{ C++
namespace mozilla {
class OriginAttributes;
} // mozilla namespace
[ptr] native OriginAttributesPtr(mozilla::OriginAttributes);
* imgICache interface
* @author Stuart Parmenter <>
* @version 0.1
* @see imagelib2
[scriptable, builtinclass, uuid(bfdf23ff-378e-402e-8a6c-840f0c82b6c3)]
interface imgICache : nsISupports
* Evict images from the cache.
* @param chrome If TRUE, evict only chrome images.
* If FALSE, evict everything except chrome images.
void clearCache(in boolean chrome);
* Evict images from the cache.
* @param uri The URI to remove.
* @param doc The document to remove the cache entry for.
* @throws NS_ERROR_NOT_AVAILABLE if \a uri was unable to be removed from
* the cache.
[noscript] void removeEntry(in nsIURI uri, [optional] in Document doc);
* Evict images from the cache with the same origin and the same
* originAttributes of the passed principal, across all processes. May only be
* called from the parent process.
* @param aPrincipal The principal to clear cache entries for. The principals
* origin attributes are used to determine whether the private or normal
* browsing cache is cleared.
* @throws NS_ERROR_NOT_AVAILABLE if not called in the parent process.
void removeEntriesFromPrincipalInAllProcesses(in nsIPrincipal aPrincipal);
* Evict images from the non-chrome cache which match the the given base
* domain. Matching cache entries will be cleared across all origin attributes
* and all processes.
* @param aBaseDomain base domain to delete cache entries for.
* @throws NS_ERROR_NOT_AVAILABLE if not called in the parent process.
void removeEntriesFromBaseDomainInAllProcesses(in ACString aBaseDomain);
* Find Properties
* Used to get properties such as 'type' and 'content-disposition'
* 'type' is a nsISupportsCString containing the images' mime type such as
* 'image/png'
* 'content-disposition' will be a nsISupportsCString containing the header
* If you call this before any data has been loaded from a URI, it will
* succeed, but come back empty.
* Hopefully this will be removed with bug 805119
* @param uri The URI to look up.
* @param doc Optional pointer to the document that the cache entry belongs to.
* @returns NULL if the URL was not found in the cache
nsIProperties findEntryProperties(in nsIURI uri,
[optional] in Document doc);
* Make this cache instance respect private browsing notifications. This
* entails clearing the chrome and content caches whenever the
* last-pb-context-exited notification is observed.
void respectPrivacyNotifications();
* Clear the image cache for a document. Controlled documents are responsible
* for doing this manually when they get destroyed.
[noscript, notxpcom]
void clearCacheForControlledDocument(in Document doc);