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| -rw-r--r-- | src/libs/xpcom18a4/xpcom/components/nsIServiceManagerUtils.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/components/nsIServiceManagerUtils.h b/src/libs/xpcom18a4/xpcom/components/nsIServiceManagerUtils.h new file mode 100644 index 00000000..b7b432af --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/components/nsIServiceManagerUtils.h @@ -0,0 +1,185 @@ +/* -*- Mode: C++; tab-width: 2; 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 XPCOM. + * + * 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 + * 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 ***** */ + +#ifndef nsIServiceManagerUtils_h__ +#define nsIServiceManagerUtils_h__ + +#include "nsIServiceManager.h" +#include "nsIServiceManagerObsolete.h" +#include "nsCOMPtr.h" + +//////////////////////////////////////////////////////////////////////////// +// Using servicemanager with COMPtrs +class NS_COM nsGetServiceByCID : public nsCOMPtr_helper +{ + public: + nsGetServiceByCID( const nsCID& aCID, nsISupports* aServiceManager, nsresult* aErrorPtr ) + : mCID(aCID), + mServiceManager( do_QueryInterface(aServiceManager) ), + mErrorPtr(aErrorPtr) + { + // nothing else to do + } + + virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const; + + private: + const nsCID& mCID; + nsCOMPtr<nsIServiceManager> mServiceManager; + nsresult* mErrorPtr; +}; + +inline +const nsGetServiceByCID +do_GetService( const nsCID& aCID, nsresult* error = 0 ) +{ + return nsGetServiceByCID(aCID, 0, error); +} + +inline +const nsGetServiceByCID +do_GetService( const nsCID& aCID, nsISupports* aServiceManager, nsresult* error = 0 ) +{ + return nsGetServiceByCID(aCID, aServiceManager, error); +} + +class NS_COM nsGetServiceByContractID : public nsCOMPtr_helper +{ + public: + nsGetServiceByContractID( const char* aContractID, nsISupports* aServiceManager, nsresult* aErrorPtr ) + : mContractID(aContractID), + mServiceManager( do_QueryInterface(aServiceManager) ), + mErrorPtr(aErrorPtr) + { + // nothing else to do + } + // Implement a dummy destructor to workaround linking issue on Solaris gcc 4.8.2 (see @bugref{5838}) + ~nsGetServiceByContractID() {} + + virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const; + + private: + const char* mContractID; + nsCOMPtr<nsIServiceManager> mServiceManager; + nsresult* mErrorPtr; +}; + +inline +const nsGetServiceByContractID +do_GetService( const char* aContractID, nsresult* error = 0 ) +{ + return nsGetServiceByContractID(aContractID, 0, error); +} + +inline +const nsGetServiceByContractID +do_GetService( const char* aContractID, nsISupports* aServiceManager, nsresult* error = 0 ) +{ + return nsGetServiceByContractID(aContractID, aServiceManager, error); +} + +class nsGetServiceFromCategory : public nsCOMPtr_helper +{ + public: + nsGetServiceFromCategory(const char* aCategory, const char* aEntry, + nsISupports* aServiceManager, + nsresult* aErrorPtr) + : mCategory(aCategory), + mEntry(aEntry), + mServiceManager( do_QueryInterface(aServiceManager) ), + mErrorPtr(aErrorPtr) + { + // nothing else to do + } + + virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const; + protected: + const char* mCategory; + const char* mEntry; + nsCOMPtr<nsIServiceManager> mServiceManager; + nsresult* mErrorPtr; +}; + +inline +const nsGetServiceFromCategory +do_GetServiceFromCategory( const char* category, const char* entry, + nsresult* error = 0) +{ + return nsGetServiceFromCategory(category, entry, 0, error); +} + +// type-safe shortcuts for calling |GetService| +template <class DestinationType> +inline +nsresult +CallGetService( const nsCID &aClass, + DestinationType** aDestination) +{ + NS_PRECONDITION(aDestination, "null parameter"); + + nsCOMPtr<nsIServiceManager> mgr; + nsresult rv = NS_GetServiceManager(getter_AddRefs(mgr)); + + if (NS_FAILED(rv)) + return rv; + + return mgr->GetService(aClass, + NS_GET_IID(DestinationType), + NS_REINTERPRET_CAST(void**, aDestination)); +} + +template <class DestinationType> +inline +nsresult +CallGetService( const char *aContractID, + DestinationType** aDestination) +{ + NS_PRECONDITION(aContractID, "null parameter"); + NS_PRECONDITION(aDestination, "null parameter"); + + nsCOMPtr<nsIServiceManager> mgr; + nsresult rv = NS_GetServiceManager(getter_AddRefs(mgr)); + + if (NS_FAILED(rv)) + return rv; + + return mgr->GetServiceByContractID(aContractID, + NS_GET_IID(DestinationType), + NS_REINTERPRET_CAST(void**, aDestination)); +} + +#endif |