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/gecko_api/include/nsGenericFactory.h

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  1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
  2/* ***** BEGIN LICENSE BLOCK *****
  3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  4 *
  5 * The contents of this file are subject to the Mozilla Public License Version
  6 * 1.1 (the "License"); you may not use this file except in compliance with
  7 * the License. You may obtain a copy of the License at
  8 * http://www.mozilla.org/MPL/
  9 *
 10 * Software distributed under the License is distributed on an "AS IS" basis,
 11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 12 * for the specific language governing rights and limitations under the
 13 * License.
 14 *
 15 * The Original Code is mozilla.org code.
 16 *
 17 * The Initial Developer of the Original Code is
 18 * Netscape Communications Corporation.
 19 * Portions created by the Initial Developer are Copyright (C) 1998
 20 * the Initial Developer. All Rights Reserved.
 21 *
 22 * Contributor(s):
 23 *
 24 * Alternatively, the contents of this file may be used under the terms of
 25 * either of the GNU General Public License Version 2 or later (the "GPL"),
 26 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 27 * in which case the provisions of the GPL or the LGPL are applicable instead
 28 * of those above. If you wish to allow use of your version of this file only
 29 * under the terms of either the GPL or the LGPL, and not to allow others to
 30 * use your version of this file under the terms of the MPL, indicate your
 31 * decision by deleting the provisions above and replace them with the notice
 32 * and other provisions required by the GPL or the LGPL. If you do not delete
 33 * the provisions above, a recipient may use your version of this file under
 34 * the terms of any one of the MPL, the GPL or the LGPL.
 35 *
 36 * ***** END LICENSE BLOCK ***** */
 37
 38#ifndef nsGenericFactory_h___
 39#define nsGenericFactory_h___
 40
 41#include "nsCOMPtr.h"
 42#include "nsIGenericFactory.h"
 43#include "nsIClassInfo.h"
 44
 45/**
 46 * Most factories follow this simple pattern, so why not just use a function
 47 * pointer for most creation operations?
 48 */
 49class nsGenericFactory : public nsIGenericFactory, public nsIClassInfo {
 50public:
 51    NS_DEFINE_STATIC_CID_ACCESSOR(NS_GENERICFACTORY_CID)
 52
 53    nsGenericFactory(const nsModuleComponentInfo *info = NULL);
 54    
 55    NS_DECL_ISUPPORTS
 56    NS_DECL_NSICLASSINFO
 57    
 58    /* nsIGenericFactory methods */
 59    NS_IMETHOD SetComponentInfo(const nsModuleComponentInfo *info);
 60    NS_IMETHOD GetComponentInfo(const nsModuleComponentInfo **infop);
 61
 62    NS_IMETHOD CreateInstance(nsISupports *aOuter, REFNSIID aIID, void **aResult);
 63
 64    NS_IMETHOD LockFactory(PRBool aLock);
 65
 66    static NS_METHOD Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr);
 67private:
 68    ~nsGenericFactory();
 69
 70    const nsModuleComponentInfo *mInfo;
 71};
 72
 73////////////////////////////////////////////////////////////////////////////////
 74
 75#include "nsIModule.h"
 76#include "plhash.h"
 77
 78class nsGenericModule : public nsIModule
 79{
 80public:
 81    nsGenericModule(const char* moduleName, 
 82                    PRUint32 componentCount,
 83                    const nsModuleComponentInfo* components,
 84                    nsModuleConstructorProc ctor,
 85                    nsModuleDestructorProc dtor);
 86
 87private:
 88    ~nsGenericModule();
 89
 90public:
 91    NS_DECL_ISUPPORTS
 92
 93    NS_DECL_NSIMODULE
 94
 95    struct FactoryNode
 96    {
 97        FactoryNode(nsIGenericFactory* fact, FactoryNode* next) 
 98        { 
 99            mFactory = fact; 
100            mNext    = next;
101        }
102        ~FactoryNode(){}
103
104        nsCOMPtr<nsIGenericFactory> mFactory;
105        FactoryNode* mNext;
106    };
107
108
109
110
111protected:
112    nsresult Initialize(nsIComponentManager* compMgr);
113
114    void Shutdown();
115    nsresult AddFactoryNode(nsIGenericFactory* fact);
116
117    PRBool                       mInitialized;
118    const char*                  mModuleName;
119    PRUint32                     mComponentCount;
120    const nsModuleComponentInfo* mComponents;
121    FactoryNode*                 mFactoriesNotToBeRegistered;
122    nsModuleConstructorProc      mCtor;
123    nsModuleDestructorProc       mDtor;
124};
125
126#endif /* nsGenericFactory_h___ */
127