nsIClassInfo.idl
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- /* -*- Mode: C++; tab-width: 8; 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 Communicator client code, released
- * March 31, 1998.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * John Bandhauer <jband@netscape.com>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of 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"
- #include "nsIProgrammingLanguage.idl"
- /**
- * Provides information about a specific implementation class
- * @status FROZEN
- */
- [scriptable, uuid(986c11d0-f340-11d4-9075-0010a4e73d9a)]
- interface nsIClassInfo : nsISupports
- {
- /**
- * Get an ordered list of the interface ids that instances of the class
- * promise to implement. Note that nsISupports is an implicit member
- * of any such list and need not be included.
- *
- * Should set *count = 0 and *array = null and return NS_OK if getting the
- * list is not supported.
- */
- void getInterfaces(out PRUint32 count,
- [array, size_is(count), retval] out nsIIDPtr array);
- /**
- * Get a language mapping specific helper object that may assist in using
- * objects of this class in a specific lanaguage. For instance, if asked
- * for the helper for nsIProgrammingLanguage::JAVASCRIPT this might return
- * an object that can be QI'd into the nsIXPCScriptable interface to assist
- * XPConnect in supplying JavaScript specific behavior to callers of the
- * instance object.
- *
- * see: nsIProgrammingLanguage.idl
- *
- * Should return null if no helper available for given language.
- */
- nsISupports getHelperForLanguage(in PRUint32 language);
- /**
- * A contract ID through which an instance of this class can be created
- * (or accessed as a service, if |flags & SINGLETON|), or null.
- */
- readonly attribute string contractID;
- /**
- * A human readable string naming the class, or null.
- */
- readonly attribute string classDescription;
- /**
- * A class ID through which an instance of this class can be created
- * (or accessed as a service, if |flags & SINGLETON|), or null.
- */
- readonly attribute nsCIDPtr classID;
- /**
- * Return language type from list in nsIProgrammingLanguage
- */
- readonly attribute PRUint32 implementationLanguage;
- /**
- * Bitflags for 'flags' attribute.
- */
- const PRUint32 SINGLETON = 1 << 0;
- const PRUint32 THREADSAFE = 1 << 1;
- const PRUint32 MAIN_THREAD_ONLY = 1 << 2;
- const PRUint32 DOM_OBJECT = 1 << 3;
- const PRUint32 PLUGIN_OBJECT = 1 << 4;
- const PRUint32 EAGER_CLASSINFO = 1 << 5;
- /**
- * 'flags' attribute bitflag: whether objects of this type implement
- * nsIContent.
- */
- const PRUint32 CONTENT_NODE = 1 << 6;
-
- // The high order bit is RESERVED for consumers of these flags.
- // No implementor of this interface should ever return flags
- // with this bit set.
- const PRUint32 RESERVED = 1 << 31;
- readonly attribute PRUint32 flags;
- /**
- * Also a class ID through which an instance of this class can be created
- * (or accessed as a service, if |flags & SINGLETON|). If the class does
- * not have a CID, it should return NS_ERROR_NOT_AVAILABLE. This attribute
- * exists so C++ callers can avoid allocating and freeing a CID, as would
- * happen if they used classID.
- */
- [notxpcom] readonly attribute nsCID classIDNoAlloc;
- };