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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;
};
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