2001-09-29 00:14:13 +04:00
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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1999-02-26 07:05:14 +03:00
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*
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2001-09-29 00:14:13 +04:00
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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1999-02-26 07:05:14 +03:00
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*
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2001-09-29 00:14:13 +04:00
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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1999-02-26 07:05:14 +03:00
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*
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1999-11-06 06:43:54 +03:00
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* The Original Code is mozilla.org code.
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*
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2001-09-29 00:14:13 +04:00
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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1999-11-06 06:43:54 +03:00
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*
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2001-09-29 00:14:13 +04:00
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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1999-02-26 07:05:14 +03:00
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#ifndef nsIGenericFactory_h___
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#define nsIGenericFactory_h___
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#include "nsIFactory.h"
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2002-02-05 04:38:43 +03:00
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#include "nsIModule.h"
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1999-02-26 07:05:14 +03:00
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// {3bc97f01-ccdf-11d2-bab8-b548654461fc}
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2001-07-31 23:05:34 +04:00
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#define NS_GENERICFACTORY_CID \
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{ 0x3bc97f01, 0xccdf, 0x11d2, \
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{ 0xba, 0xb8, 0xb5, 0x48, 0x65, 0x44, 0x61, 0xfc } }
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1999-02-26 07:05:14 +03:00
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// {3bc97f00-ccdf-11d2-bab8-b548654461fc}
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2001-07-31 23:05:34 +04:00
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#define NS_IGENERICFACTORY_IID \
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{ 0x3bc97f00, 0xccdf, 0x11d2, \
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{ 0xba, 0xb8, 0xb5, 0x48, 0x65, 0x44, 0x61, 0xfc } }
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1999-02-26 07:05:14 +03:00
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2000-09-14 03:57:52 +04:00
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#define NS_GENERICFACTORY_CONTRACTID "@mozilla.org/generic-factory;1"
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1999-05-28 02:47:27 +04:00
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#define NS_GENERICFACTORY_CLASSNAME "Generic Factory"
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2001-03-12 23:43:02 +03:00
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struct nsModuleComponentInfo; // forward declaration
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1999-02-26 07:05:14 +03:00
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/**
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* Provides a Generic nsIFactory implementation that can be used by
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* DLLs with very simple factory needs.
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*/
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class nsIGenericFactory : public nsIFactory {
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public:
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2001-07-31 23:05:34 +04:00
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IGENERICFACTORY_IID)
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1999-02-26 07:05:14 +03:00
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2002-01-30 07:05:47 +03:00
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NS_IMETHOD SetComponentInfo(const nsModuleComponentInfo *info) = 0;
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NS_IMETHOD GetComponentInfo(const nsModuleComponentInfo **infop) = 0;
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1999-02-26 07:05:14 +03:00
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};
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1999-06-04 01:51:14 +04:00
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extern NS_COM nsresult
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2001-03-12 23:43:02 +03:00
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NS_NewGenericFactory(nsIGenericFactory **result,
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2002-01-30 07:05:47 +03:00
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const nsModuleComponentInfo *info);
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2001-03-12 23:43:02 +03:00
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1999-05-26 05:38:36 +04:00
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2002-02-05 04:38:43 +03:00
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/** Component Callbacks **/
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/**
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* NSConstructorProcPtr
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*
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* This function will be used by the generic factory to create an
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* instance of the given CID.
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*
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* @param aOuter : Pointer to a component that wishes to be aggregated
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* in the resulting instance. This will be nsnull if no
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* aggregation is requested.
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* @param iid : The IID of the interface being requested in
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* the component which is being currently created.
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* @param result : [out] Pointer to the newly created instance, if successful.
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*
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* @return NS_OK Component successfully created and the interface
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* being requested was successfully returned in result.
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* NS_NOINTERFACE Interface not accessible.
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* NS_ERROR_NO_AGGREGATION if an 'outer' object is supplied, but the
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* component is not aggregatable.
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* NS_ERROR* Method failure.
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**/
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typedef NS_CALLBACK(NSConstructorProcPtr)(nsISupports *aOuter,
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REFNSIID aIID,
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2001-07-31 23:05:34 +04:00
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void **aResult);
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2001-03-12 23:43:02 +03:00
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2002-02-05 04:38:43 +03:00
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/**
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* NSRegisterSelfProcPtr
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*
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* One time registration call back. Allows you to perform registration
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* specific activity like adding yourself to a category.
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*
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* @param aCompMgr : The global component manager
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* @param aFile : Component File. This file must have an associated
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* loader and export the required symbols which this
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* loader defines.
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* @param aLoaderStr : Opaque loader specific string. This value is
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* passed into the nsIModule's registerSelf
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* callback and must be fowarded unmodified when
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* registering factories via their location.
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* @param aType : Component Type of CID aClass. This value is
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* passed into the nsIModule's registerSelf
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* callback and must be fowarded unmodified when
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* registering factories via their location.
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* @param aInfo : Pointer to array of nsModuleComponentInfo
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*
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* @param aInfo
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* @return NS_OK Registration was successful.
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* NS_ERROR* Method failure.
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**/
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2001-07-31 23:05:34 +04:00
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typedef NS_CALLBACK(NSRegisterSelfProcPtr)(nsIComponentManager *aCompMgr,
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nsIFile *aPath,
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2002-02-05 04:38:43 +03:00
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const char *aLoaderStr,
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const char *aType,
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2001-08-07 06:55:54 +04:00
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const nsModuleComponentInfo *aInfo);
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2000-01-12 00:18:55 +03:00
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2002-02-05 04:38:43 +03:00
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/**
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* NSUnregisterSelfProcPtr
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*
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* One time unregistration call back. Allows you to perform unregistration
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* specific activity like removing yourself from a category.
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*
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* @param aCompMgr : The global component manager
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* @param aFile : Component File. This file must have an associated
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* loader and export the required symbols which this
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* loader defines.
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* @param aLoaderStr : Opaque loader specific string. This value is
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* passed into the nsIModule's registerSelf
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* callback and must be fowarded unmodified when
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* registering factories via their location
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* @param aInfo : Pointer to array of nsModuleComponentInfo
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*
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* @param aInfo
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* @return NS_OK Registration was successful.
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* NS_ERROR* Method failure.
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**/
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2001-07-31 23:05:34 +04:00
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typedef NS_CALLBACK(NSUnregisterSelfProcPtr)(nsIComponentManager *aCompMgr,
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nsIFile *aPath,
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2002-02-05 04:38:43 +03:00
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const char *aLoaderStr,
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2001-08-07 06:55:54 +04:00
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const nsModuleComponentInfo *aInfo);
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2001-03-12 23:43:02 +03:00
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2002-02-05 04:38:43 +03:00
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/**
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* NSFactoryDestructorProcPtr
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*
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* This function will be called when the factory is being destroyed.
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*
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**/
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2001-07-31 23:05:34 +04:00
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typedef NS_CALLBACK(NSFactoryDestructorProcPtr)(void);
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2001-03-12 23:43:02 +03:00
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2002-02-05 04:38:43 +03:00
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/**
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* NSGetInterfacesProcPtr
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*
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* This function is used to implement class info.
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*
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* Get an ordered list of the interface ids that instances of the class
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* promise to implement. Note that nsISupports is an implicit member
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* of any such list and need not be included.
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*
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* Should set *count = 0 and *array = null and return NS_OK if getting the
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* list is not supported.
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*
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* @see nsIClassInfo.idl
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**/
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2001-07-31 23:05:34 +04:00
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typedef NS_CALLBACK(NSGetInterfacesProcPtr)(PRUint32 *countp,
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nsIID* **array);
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2001-03-12 23:43:02 +03:00
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2002-02-05 04:38:43 +03:00
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/**
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* NSGetLanguageHelperProcPtr
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*
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* This function is used to implement class info.
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*
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* Get a language mapping specific helper object that may assist in using
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* objects of this class in a specific lanaguage. For instance, if asked
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* for the helper for nsIProgrammingLanguage::JAVASCRIPT this might return
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* an object that can be QI'd into the nsIXPCScriptable interface to assist
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* XPConnect in supplying JavaScript specific behavior to callers of the
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* instance object.
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*
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* @see: nsIClassInfo.idl, nsIProgrammingLanguage.idl
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*
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* Should return null if no helper available for given language.
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**/
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2001-07-31 23:05:34 +04:00
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typedef NS_CALLBACK(NSGetLanguageHelperProcPtr)(PRUint32 language,
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nsISupports **helper);
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2000-01-12 00:18:55 +03:00
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1999-11-12 12:07:26 +03:00
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/**
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2002-02-05 04:38:43 +03:00
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* nsModuleComponentInfo
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*
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1999-11-12 12:07:26 +03:00
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* Use this type to define a list of module component info to pass to
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2002-02-05 04:38:43 +03:00
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* NS_NewGenericModule.
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*
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* @param mDescription : Class Name of given object
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* @param mCID : CID of given object
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* @param mContractID : Contract ID of given object
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* @param mConstructor : Constructor of given object
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* @param mRegisterSelfProc : (optional) Registration Callback
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* @param mUnregisterSelfProc : (optional) Unregistration Callback
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* @param mFactoryDestructor : (optional) Destruction Callback
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* @param mGetInterfacesProc : (optional) Interfaces Callback
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* @param mGetLanguageHelperProc : (optional) Language Helper Callback
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* @param mClassInfoGlobal : (optional) Global Class Info of given object
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* @param mFlags : (optional) Class Info Flags @see nsIClassInfo
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*
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* E.g.:
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1999-11-12 12:07:26 +03:00
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* static nsModuleComponentInfo components[] = { ... };
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2002-02-05 04:38:43 +03:00
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*
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1999-11-12 12:07:26 +03:00
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* See xpcom/sample/nsSampleModule.cpp for more info.
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*/
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struct nsModuleComponentInfo {
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const char* mDescription;
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nsCID mCID;
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2000-09-14 03:57:52 +04:00
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const char* mContractID;
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2001-03-12 23:43:02 +03:00
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NSConstructorProcPtr mConstructor;
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2000-01-12 00:18:55 +03:00
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NSRegisterSelfProcPtr mRegisterSelfProc;
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NSUnregisterSelfProcPtr mUnregisterSelfProc;
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2001-03-12 23:43:02 +03:00
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NSFactoryDestructorProcPtr mFactoryDestructor;
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NSGetInterfacesProcPtr mGetInterfacesProc;
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NSGetLanguageHelperProcPtr mGetLanguageHelperProc;
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nsIClassInfo ** mClassInfoGlobal;
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PRUint32 mFlags;
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1999-11-12 12:07:26 +03:00
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};
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2002-02-05 04:38:43 +03:00
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/** Module Callbacks **/
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/**
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* nsModuleConstructorProc
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*
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* This function is called when the module is first being constructed.
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* @param self module which is being constructed.
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*
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* @return NS_OK Construction successful.
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* NS_ERROR* Method failure which will result in module not being
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* loaded.
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**/
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2001-08-07 06:55:54 +04:00
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typedef nsresult (PR_CALLBACK *nsModuleConstructorProc) (nsIModule *self);
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2002-02-05 04:38:43 +03:00
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/**
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* nsModuleDestructorProc
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*
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* This function is called when the module is being destroyed.
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* @param self module which is being destroyed.
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*
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**/
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2001-08-21 04:55:20 +04:00
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typedef void (PR_CALLBACK *nsModuleDestructorProc) (nsIModule *self);
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/**
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2002-02-05 04:38:43 +03:00
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* nsModuleInfo
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*
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2001-08-21 04:55:20 +04:00
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* Use this structure to define meta-information about the module
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* itself, including the name, its components, and an optional
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* module-level initialization or shutdown routine.
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2002-02-05 04:38:43 +03:00
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*
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* @param mVersion : Module Info Version
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* @param mModuleName : Module Name
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* @param mComponents : Array of Components
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* @param mCount : Count of mComponents
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* @param mCtor : Module user defined constructor
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* @param mDtor : Module user defined destructor
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*
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**/
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2001-08-21 04:55:20 +04:00
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struct nsModuleInfo {
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PRUint32 mVersion;
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const char* mModuleName;
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2002-01-30 07:05:47 +03:00
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const nsModuleComponentInfo* mComponents;
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2001-08-21 04:55:20 +04:00
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PRUint32 mCount;
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nsModuleConstructorProc mCtor;
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nsModuleDestructorProc mDtor;
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};
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/**
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* Rev this if you change the nsModuleInfo, and are worried about
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2001-08-30 01:59:43 +04:00
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* binary compatibility. (Ostensibly fix NS_NewGenericModule2() to deal
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2001-08-21 04:55:20 +04:00
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* with older rev's at the same time.)
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*/
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#define NS_MODULEINFO_VERSION 0x00010000UL // 1.0
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2000-01-07 05:18:13 +03:00
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2001-08-30 01:59:43 +04:00
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/**
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* Create a new generic module. Use the NS_IMPL_NSGETMODULE macro, or
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* one of its relatives, rather than using this directly.
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*/
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extern NS_COM nsresult
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NS_NewGenericModule2(nsModuleInfo *info, nsIModule* *result);
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/**
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* Obsolete. Use NS_NewGenericModule2() instead.
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*/
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1999-11-12 12:07:26 +03:00
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extern NS_COM nsresult
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2001-08-30 01:59:43 +04:00
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NS_NewGenericModule(const char* moduleName,
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|
PRUint32 componentCount,
|
|
|
|
nsModuleComponentInfo* components,
|
|
|
|
nsModuleDestructorProc dtor,
|
|
|
|
nsIModule* *result);
|
1999-11-12 12:07:26 +03:00
|
|
|
|
2001-06-21 00:21:49 +04:00
|
|
|
#if defined(XPCOM_TRANSLATE_NSGM_ENTRY_POINT)
|
2001-08-21 04:55:20 +04:00
|
|
|
# define NSMODULEINFO(_name) _name##_gModuleInfo
|
|
|
|
# define NSGETMODULE_ENTRY_POINT(_info)
|
2001-05-05 09:33:37 +04:00
|
|
|
#else
|
2001-08-21 04:55:20 +04:00
|
|
|
# define NSMODULEINFO(_name) gModuleInfo
|
|
|
|
# define NSGETMODULE_ENTRY_POINT(_info) \
|
|
|
|
extern "C" NS_EXPORT nsresult \
|
|
|
|
NSGetModule(nsIComponentManager *servMgr, \
|
|
|
|
nsIFile* location, \
|
|
|
|
nsIModule** result) \
|
|
|
|
{ \
|
2001-08-30 01:59:43 +04:00
|
|
|
return NS_NewGenericModule2(&(_info), result); \
|
2001-08-21 04:55:20 +04:00
|
|
|
}
|
2001-05-05 09:33:37 +04:00
|
|
|
#endif
|
|
|
|
|
2002-02-05 04:38:43 +03:00
|
|
|
/**
|
|
|
|
* Ease of use Macros which define NSGetModule for your component.
|
|
|
|
* See xpcom/sample/nsSampleModule.cpp for more info.
|
|
|
|
*
|
|
|
|
**/
|
|
|
|
|
2001-07-31 23:05:34 +04:00
|
|
|
#define NS_IMPL_NSGETMODULE(_name, _components) \
|
2001-08-07 06:55:54 +04:00
|
|
|
NS_IMPL_NSGETMODULE_WITH_CTOR_DTOR(_name, _components, nsnull, nsnull)
|
|
|
|
|
|
|
|
#define NS_IMPL_NSGETMODULE_WITH_CTOR(_name, _components, _ctor) \
|
|
|
|
NS_IMPL_NSGETMODULE_WITH_CTOR_DTOR(_name, _components, _ctor, nsnull)
|
2000-01-07 05:18:13 +03:00
|
|
|
|
2001-07-31 23:05:34 +04:00
|
|
|
#define NS_IMPL_NSGETMODULE_WITH_DTOR(_name, _components, _dtor) \
|
2001-08-07 06:55:54 +04:00
|
|
|
NS_IMPL_NSGETMODULE_WITH_CTOR_DTOR(_name, _components, nsnull, _dtor)
|
|
|
|
|
|
|
|
#define NS_IMPL_NSGETMODULE_WITH_CTOR_DTOR(_name, _components, _ctor, _dtor) \
|
2001-08-21 04:55:20 +04:00
|
|
|
nsModuleInfo NSMODULEINFO(_name) = { \
|
|
|
|
NS_MODULEINFO_VERSION, \
|
|
|
|
(#_name), \
|
|
|
|
(_components), \
|
|
|
|
(sizeof(_components) / sizeof(_components[0])), \
|
|
|
|
(_ctor), \
|
|
|
|
(_dtor) \
|
|
|
|
}; \
|
|
|
|
NSGETMODULE_ENTRY_POINT(NSMODULEINFO(_name))
|
1999-11-12 12:07:26 +03:00
|
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
2001-07-31 23:05:34 +04:00
|
|
|
#define NS_GENERIC_FACTORY_CONSTRUCTOR(_InstanceClass) \
|
|
|
|
static NS_IMETHODIMP \
|
|
|
|
_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, \
|
|
|
|
void **aResult) \
|
|
|
|
{ \
|
|
|
|
nsresult rv; \
|
|
|
|
\
|
|
|
|
_InstanceClass * inst; \
|
|
|
|
\
|
|
|
|
*aResult = NULL; \
|
|
|
|
if (NULL != aOuter) { \
|
|
|
|
rv = NS_ERROR_NO_AGGREGATION; \
|
|
|
|
return rv; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
NS_NEWXPCOM(inst, _InstanceClass); \
|
|
|
|
if (NULL == inst) { \
|
|
|
|
rv = NS_ERROR_OUT_OF_MEMORY; \
|
|
|
|
return rv; \
|
|
|
|
} \
|
|
|
|
NS_ADDREF(inst); \
|
|
|
|
rv = inst->QueryInterface(aIID, aResult); \
|
|
|
|
NS_RELEASE(inst); \
|
|
|
|
\
|
|
|
|
return rv; \
|
|
|
|
} \
|
|
|
|
|
|
|
|
|
|
|
|
#define NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(_InstanceClass, _InitMethod) \
|
|
|
|
static NS_IMETHODIMP \
|
|
|
|
_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, \
|
|
|
|
void **aResult) \
|
|
|
|
{ \
|
|
|
|
nsresult rv; \
|
|
|
|
\
|
|
|
|
_InstanceClass * inst; \
|
|
|
|
\
|
|
|
|
*aResult = NULL; \
|
|
|
|
if (NULL != aOuter) { \
|
|
|
|
rv = NS_ERROR_NO_AGGREGATION; \
|
|
|
|
return rv; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
NS_NEWXPCOM(inst, _InstanceClass); \
|
|
|
|
if (NULL == inst) { \
|
|
|
|
rv = NS_ERROR_OUT_OF_MEMORY; \
|
|
|
|
return rv; \
|
|
|
|
} \
|
|
|
|
NS_ADDREF(inst); \
|
2002-02-05 04:38:43 +03:00
|
|
|
rv = inst->_InitMethod(); \
|
2001-07-31 23:05:34 +04:00
|
|
|
if(NS_SUCCEEDED(rv)) { \
|
|
|
|
rv = inst->QueryInterface(aIID, aResult); \
|
|
|
|
} \
|
|
|
|
NS_RELEASE(inst); \
|
|
|
|
\
|
|
|
|
return rv; \
|
|
|
|
} \
|
1999-10-11 02:30:55 +04:00
|
|
|
|
2000-01-07 05:18:13 +03:00
|
|
|
// 'Constructor' that uses an existing getter function that gets a singleton.
|
|
|
|
// NOTE: assumes that getter does an AddRef - so additional AddRef is not done.
|
2001-07-31 23:05:34 +04:00
|
|
|
#define NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(_InstanceClass, _GetterProc) \
|
|
|
|
static NS_IMETHODIMP \
|
|
|
|
_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, \
|
|
|
|
void **aResult) \
|
|
|
|
{ \
|
|
|
|
nsresult rv; \
|
|
|
|
\
|
|
|
|
_InstanceClass * inst; \
|
|
|
|
\
|
|
|
|
*aResult = NULL; \
|
|
|
|
if (NULL != aOuter) { \
|
|
|
|
rv = NS_ERROR_NO_AGGREGATION; \
|
|
|
|
return rv; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
inst = _GetterProc(); \
|
|
|
|
if (NULL == inst) { \
|
|
|
|
rv = NS_ERROR_OUT_OF_MEMORY; \
|
|
|
|
return rv; \
|
|
|
|
} \
|
|
|
|
/* NS_ADDREF(inst); */ \
|
|
|
|
rv = inst->QueryInterface(aIID, aResult); \
|
|
|
|
NS_RELEASE(inst); \
|
|
|
|
\
|
|
|
|
return rv; \
|
|
|
|
} \
|
2000-01-07 05:18:13 +03:00
|
|
|
|
1999-02-26 07:05:14 +03:00
|
|
|
#endif /* nsIGenericFactory_h___ */
|