gecko-dev/dom/public/nsIScriptNameSpaceManager.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsIScriptNameSpaceManager_h__
#define nsIScriptNameSpaceManager_h__
#include "nscore.h"
#include "nsString.h"
#include "nsISupports.h"
#define NS_ISCRIPTNAMESPACEMANAGER_IID \
{0xa6cf90db, 0x15b3, 0x11d2, \
{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
/**
* A per script context construct. The namespace manager maintains
* a mapping between a global symbol or name and a class ID to
* obtain a factory to use to instantiate a native object.
*/
class nsIScriptNameSpaceManager : public nsISupports {
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_ISCRIPTNAMESPACEMANAGER_IID);
/**
* Used to register a single global symbol or name. The class ID
* is used to obtain a factory which is used to instantiate
* the the corresponding native object. The name can represent
* either an object or a constructor.
* XXX How do we indicate clashes in registered names?
*
* @param aName the name to reflect in the global namespace
* @param aIID IID used to create a script wrapper
* @param aCID the class ID used to obtain a factory
* @param aIsConstructor set to PR_TRUE if the name represents
* a constructor. PR_FALSE if it is a global object.
* @result NS_OK if successful
*/
NS_IMETHOD RegisterGlobalName(const nsAReadableString& aName,
const nsIID& aIID,
const nsIID& aCID,
PRBool aIsConstructor) = 0;
/**
* Used to remove a global symbol or name from the manager.
*
* @param aName the name to remove
* @result NS_OK if successful
*/
NS_IMETHOD UnregisterGlobalName(const nsAReadableString& aName) = 0;
/**
* Used to look up the manager using a name as a key. The
* return value is a class ID that can be used to obtain
* a factory.
*
* @param aName the name to use as a key for the lookup
* @param aIsConstructor out parameter to indicate whether
* the name refers to an instance or a constructor
* @param aIID out parameter that returns the ID of the
* interface to use to create a script wrapper
* for the newly created instance.
* @param aCID out parameter that returns the class ID
* that corresponds to the name
* @result NS_OK if the lookup succeeded. NS_ERROR_INVALID_ARG
* if the lookup failed.
*/
NS_IMETHOD LookupName(const nsAReadableString& aName,
PRBool& aIsConstructor,
nsIID& aIID,
nsIID& aCID) = 0;
};
extern "C" NS_DOM nsresult NS_NewScriptNameSpaceManager(nsIScriptNameSpaceManager** aInstancePtr);
#endif /* nsIScriptNameSpaceManager_h__ */