| /* -*- Mode: C++; tab-width: 4; 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.org Code. |
| * |
| * 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): |
| * |
| * 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 |
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| * the terms of any one of the MPL, the GPL or the LGPL. |
| * |
| * ***** END LICENSE BLOCK ***** */ |
| |
| #ifndef nsComponentManagerUtils_h__ |
| #define nsComponentManagerUtils_h__ |
| |
| #ifndef nscore_h__ |
| #include "nscore.h" |
| #endif |
| |
| #ifndef nsCOMPtr_h__ |
| #include "nsCOMPtr.h" |
| #endif |
| |
| #include "nsIFactory.h" |
| |
| |
| NS_COM_GLUE nsresult |
| CallCreateInstance |
| (const nsCID &aClass, nsISupports *aDelegate, const nsIID &aIID, |
| void **aResult); |
| |
| NS_COM_GLUE nsresult |
| CallCreateInstance |
| (const char *aContractID, nsISupports *aDelegate, const nsIID &aIID, |
| void **aResult); |
| |
| NS_COM_GLUE nsresult |
| CallGetClassObject |
| (const nsCID &aClass, const nsIID &aIID, void **aResult); |
| |
| NS_COM_GLUE nsresult |
| CallGetClassObject |
| (const char *aContractID, const nsIID &aIID, void **aResult); |
| |
| |
| class NS_COM_GLUE nsCreateInstanceByCID : public nsCOMPtr_helper |
| { |
| public: |
| nsCreateInstanceByCID( const nsCID& aCID, nsISupports* aOuter, nsresult* aErrorPtr ) |
| : mCID(aCID), |
| mOuter(aOuter), |
| mErrorPtr(aErrorPtr) |
| { |
| // nothing else to do here |
| } |
| |
| virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const; |
| |
| private: |
| const nsCID& mCID; |
| nsISupports* mOuter; |
| nsresult* mErrorPtr; |
| }; |
| |
| class NS_COM_GLUE nsCreateInstanceByContractID : public nsCOMPtr_helper |
| { |
| public: |
| nsCreateInstanceByContractID( const char* aContractID, nsISupports* aOuter, nsresult* aErrorPtr ) |
| : mContractID(aContractID), |
| mOuter(aOuter), |
| mErrorPtr(aErrorPtr) |
| { |
| // nothing else to do here |
| } |
| |
| virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const; |
| |
| private: |
| const char* mContractID; |
| nsISupports* mOuter; |
| nsresult* mErrorPtr; |
| }; |
| |
| class NS_COM_GLUE nsCreateInstanceFromFactory : public nsCOMPtr_helper |
| { |
| public: |
| nsCreateInstanceFromFactory( nsIFactory* aFactory, nsISupports* aOuter, nsresult* aErrorPtr ) |
| : mFactory(aFactory), |
| mOuter(aOuter), |
| mErrorPtr(aErrorPtr) |
| { |
| // nothing else to do here |
| } |
| |
| virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const; |
| |
| private: |
| nsIFactory* mFactory; |
| nsISupports* mOuter; |
| nsresult* mErrorPtr; |
| }; |
| |
| |
| inline |
| const nsCreateInstanceByCID |
| do_CreateInstance( const nsCID& aCID, nsresult* error = 0 ) |
| { |
| return nsCreateInstanceByCID(aCID, 0, error); |
| } |
| |
| inline |
| const nsCreateInstanceByCID |
| do_CreateInstance( const nsCID& aCID, nsISupports* aOuter, nsresult* error = 0 ) |
| { |
| return nsCreateInstanceByCID(aCID, aOuter, error); |
| } |
| |
| inline |
| const nsCreateInstanceByContractID |
| do_CreateInstance( const char* aContractID, nsresult* error = 0 ) |
| { |
| return nsCreateInstanceByContractID(aContractID, 0, error); |
| } |
| |
| inline |
| const nsCreateInstanceByContractID |
| do_CreateInstance( const char* aContractID, nsISupports* aOuter, nsresult* error = 0 ) |
| { |
| return nsCreateInstanceByContractID(aContractID, aOuter, error); |
| } |
| |
| inline |
| const nsCreateInstanceFromFactory |
| do_CreateInstance( nsIFactory* aFactory, nsresult* error = 0 ) |
| { |
| return nsCreateInstanceFromFactory(aFactory, 0, error); |
| } |
| |
| inline |
| const nsCreateInstanceFromFactory |
| do_CreateInstance( nsIFactory* aFactory, nsISupports* aOuter, nsresult* error = 0 ) |
| { |
| return nsCreateInstanceFromFactory(aFactory, aOuter, error); |
| } |
| |
| |
| class NS_COM_GLUE nsGetClassObjectByCID : public nsCOMPtr_helper |
| { |
| public: |
| nsGetClassObjectByCID( const nsCID& aCID, nsresult* aErrorPtr ) |
| : mCID(aCID), |
| mErrorPtr(aErrorPtr) |
| { |
| // nothing else to do here |
| } |
| |
| virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const; |
| |
| private: |
| const nsCID& mCID; |
| nsresult* mErrorPtr; |
| }; |
| |
| class NS_COM_GLUE nsGetClassObjectByContractID : public nsCOMPtr_helper |
| { |
| public: |
| nsGetClassObjectByContractID( const char* aContractID, nsresult* aErrorPtr ) |
| : mContractID(aContractID), |
| mErrorPtr(aErrorPtr) |
| { |
| // nothing else to do here |
| } |
| |
| virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const; |
| |
| private: |
| const char* mContractID; |
| nsresult* mErrorPtr; |
| }; |
| |
| /** |
| * do_GetClassObject can be used to improve performance of callers |
| * that call |CreateInstance| many times. They can cache the factory |
| * and call do_CreateInstance or CallCreateInstance with the cached |
| * factory rather than having the component manager retrieve it every |
| * time. |
| */ |
| inline const nsGetClassObjectByCID |
| do_GetClassObject( const nsCID& aCID, nsresult* error = 0 ) |
| { |
| return nsGetClassObjectByCID(aCID, error); |
| } |
| |
| inline const nsGetClassObjectByContractID |
| do_GetClassObject( const char* aContractID, nsresult* error = 0 ) |
| { |
| return nsGetClassObjectByContractID(aContractID, error); |
| } |
| |
| // type-safe shortcuts for calling |CreateInstance| |
| template <class DestinationType> |
| inline |
| nsresult |
| CallCreateInstance( const nsCID &aClass, |
| nsISupports *aDelegate, |
| DestinationType** aDestination ) |
| { |
| NS_PRECONDITION(aDestination, "null parameter"); |
| |
| return CallCreateInstance(aClass, aDelegate, |
| NS_GET_TEMPLATE_IID(DestinationType), |
| reinterpret_cast<void**>(aDestination)); |
| } |
| |
| template <class DestinationType> |
| inline |
| nsresult |
| CallCreateInstance( const nsCID &aClass, |
| DestinationType** aDestination ) |
| { |
| NS_PRECONDITION(aDestination, "null parameter"); |
| |
| return CallCreateInstance(aClass, nsnull, |
| NS_GET_TEMPLATE_IID(DestinationType), |
| reinterpret_cast<void**>(aDestination)); |
| } |
| |
| template <class DestinationType> |
| inline |
| nsresult |
| CallCreateInstance( const char *aContractID, |
| nsISupports *aDelegate, |
| DestinationType** aDestination ) |
| { |
| NS_PRECONDITION(aContractID, "null parameter"); |
| NS_PRECONDITION(aDestination, "null parameter"); |
| |
| return CallCreateInstance(aContractID, |
| aDelegate, |
| NS_GET_TEMPLATE_IID(DestinationType), |
| reinterpret_cast<void**>(aDestination)); |
| } |
| |
| template <class DestinationType> |
| inline |
| nsresult |
| CallCreateInstance( const char *aContractID, |
| DestinationType** aDestination ) |
| { |
| NS_PRECONDITION(aContractID, "null parameter"); |
| NS_PRECONDITION(aDestination, "null parameter"); |
| |
| return CallCreateInstance(aContractID, nsnull, |
| NS_GET_TEMPLATE_IID(DestinationType), |
| reinterpret_cast<void**>(aDestination)); |
| } |
| |
| template <class DestinationType> |
| inline |
| nsresult |
| CallCreateInstance( nsIFactory *aFactory, |
| nsISupports *aDelegate, |
| DestinationType** aDestination ) |
| { |
| NS_PRECONDITION(aFactory, "null parameter"); |
| NS_PRECONDITION(aDestination, "null parameter"); |
| |
| return aFactory->CreateInstance(aDelegate, |
| NS_GET_TEMPLATE_IID(DestinationType), |
| reinterpret_cast<void**>(aDestination)); |
| } |
| |
| template <class DestinationType> |
| inline |
| nsresult |
| CallCreateInstance( nsIFactory *aFactory, |
| DestinationType** aDestination ) |
| { |
| NS_PRECONDITION(aFactory, "null parameter"); |
| NS_PRECONDITION(aDestination, "null parameter"); |
| |
| return aFactory->CreateInstance(nsnull, |
| NS_GET_TEMPLATE_IID(DestinationType), |
| reinterpret_cast<void**>(aDestination)); |
| } |
| |
| template <class DestinationType> |
| inline |
| nsresult |
| CallGetClassObject( const nsCID &aClass, |
| DestinationType** aDestination ) |
| { |
| NS_PRECONDITION(aDestination, "null parameter"); |
| |
| return CallGetClassObject(aClass, |
| NS_GET_TEMPLATE_IID(DestinationType), reinterpret_cast<void**>(aDestination)); |
| } |
| |
| template <class DestinationType> |
| inline |
| nsresult |
| CallGetClassObject( const char* aContractID, |
| DestinationType** aDestination ) |
| { |
| NS_PRECONDITION(aDestination, "null parameter"); |
| |
| return CallGetClassObject(aContractID, |
| NS_GET_TEMPLATE_IID(DestinationType), reinterpret_cast<void**>(aDestination)); |
| } |
| |
| #endif /* nsComponentManagerUtils_h__ */ |