/* -*- 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) 2001 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Rusty Lynch * * Alternatively, the contents of this file may be used under the terms of * either 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 ***** */ /* * Implements the SANE plugin factory class. */ #include "nsString.h" #include "nsCOMPtr.h" #include "nsIServiceManager.h" #include "nsSanePlugin_CID.h" #include "nsSanePlugin.h" #include "nsSanePluginFactory.h" #include "plstr.h" #define PLUGIN_NAME "SANE Plugin" #define PLUGIN_DESCRIPTION "SANE Plugin is a generic scanner interface" #define PLUGIN_MIME_DESCRIPTION "application/X-sane-plugin::Scanner/Camera" #define PLUGIN_MIME_TYPE "application/X-sane-plugin" static NS_DEFINE_IID( kISupportsIID, NS_ISUPPORTS_IID ); static NS_DEFINE_IID( kIFactoryIID, NS_IFACTORY_IID ); static NS_DEFINE_IID( kIPluginIID, NS_IPLUGIN_IID ); static NS_DEFINE_CID( kComponentManagerCID, NS_COMPONENTMANAGER_CID ); static NS_DEFINE_CID( knsSanePluginControlCID, NS_SANE_PLUGIN_CONTROL_CID ); static NS_DEFINE_CID( knsSanePluginInst, NS_SANE_PLUGIN_CID ); //////////////////////////////////////////////////////////////////////// nsSanePluginFactoryImpl::nsSanePluginFactoryImpl( const nsCID &aClass, const char* className, const char* contractID ) : mClassID(aClass), mClassName(className), mContractID(contractID) { #ifdef DEBUG printf("nsSanePluginFactoryImpl::nsSanePluginFactoryImpl()\n"); #endif } nsSanePluginFactoryImpl::~nsSanePluginFactoryImpl() { #ifdef DEBUG printf("nsSanePluginFactoryImpl::~nsSanePluginFactoryImpl()\n"); #endif printf("mRefCnt = %i\n", mRefCnt); NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction"); } NS_IMETHODIMP nsSanePluginFactoryImpl::QueryInterface(const nsIID &aIID, void **aInstancePtr) { #ifdef DEBUG printf("nsSanePluginFactoryImpl::QueryInterface()\n"); #endif if (!aInstancePtr) return NS_ERROR_NULL_POINTER; if (aIID.Equals(kISupportsIID)) { *aInstancePtr = NS_STATIC_CAST(nsISupports*,this); } else if (aIID.Equals(kIFactoryIID)) { *aInstancePtr = NS_STATIC_CAST(nsISupports*, NS_STATIC_CAST(nsIFactory*,this)); } else if (aIID.Equals(kIPluginIID)) { *aInstancePtr = NS_STATIC_CAST(nsISupports*, NS_STATIC_CAST(nsIPlugin*,this)); } else { *aInstancePtr = nsnull; return NS_ERROR_NO_INTERFACE; } NS_ADDREF(NS_REINTERPRET_CAST(nsISupports*,*aInstancePtr)); return NS_OK; } // Standard implementation of AddRef and Release NS_IMPL_ADDREF( nsSanePluginFactoryImpl ) NS_IMPL_RELEASE( nsSanePluginFactoryImpl ) NS_IMETHODIMP nsSanePluginFactoryImpl::CreateInstance( nsISupports *aOuter, const nsIID &aIID, void **aResult) { #ifdef DEBUG printf("nsSanePluginFactoryImpl::CreateInstance()\n"); #endif if ( !aResult ) return NS_ERROR_NULL_POINTER; if ( aOuter ) return NS_ERROR_NO_AGGREGATION; nsSanePluginInstance * inst = new nsSanePluginInstance(); if (!inst) return NS_ERROR_OUT_OF_MEMORY; inst->AddRef(); *aResult = inst; return NS_OK; } nsresult nsSanePluginFactoryImpl::LockFactory(PRBool aLock) { #ifdef DEBUG printf("nsSanePluginFactoryImpl::LockFactory()\n"); #endif // Needs to be implemented return NS_OK; } NS_METHOD nsSanePluginFactoryImpl::Initialize() { #ifdef DEBUG printf("nsSanePluginFactoryImpl::Initialize()\n"); #endif return NS_OK; } NS_METHOD nsSanePluginFactoryImpl::Shutdown( void ) { #ifdef DEBUG printf("nsSanePluginFactoryImpl::Shutdown()\n"); #endif return NS_OK; } NS_METHOD nsSanePluginFactoryImpl::GetMIMEDescription(const char* *result) { #ifdef DEBUG printf("nsSanePluginFactoryImpl::GetMIMEDescription()\n"); #endif // caller is responsible for releasing *result = PL_strdup( PLUGIN_MIME_DESCRIPTION ); return NS_OK; } NS_METHOD nsSanePluginFactoryImpl::GetValue( nsPluginVariable variable, void *value ) { #ifdef DEBUG printf("nsSanePluginFactoryImpl::GetValue()\n"); #endif nsresult err = NS_OK; if ( variable == nsPluginVariable_NameString ) { *( ( char ** )value ) = strdup( PLUGIN_NAME ); } else if ( variable == nsPluginVariable_DescriptionString ) { *( ( char ** )value ) = strdup( PLUGIN_DESCRIPTION ); } else { err = NS_ERROR_FAILURE; } return err; } NS_IMETHODIMP nsSanePluginFactoryImpl::CreatePluginInstance( nsISupports *aOuter, REFNSIID aIID, const char* aPluginMIMEType, void **aResult) { #ifdef DEBUG printf("nsSanePluginFactoryImpl::CreatePluginInstance()\n"); #endif // Need to find out what this is used for. The npsimple // plugin looks like it just does a CreateInstance and // ignores the mime type. return NS_ERROR_NOT_IMPLEMENTED; } //////////////////////////////////////////////////////////////////////// /** * The XPCOM runtime will call this to get a new factory object for the * CID/contractID it passes in. XPCOM is responsible for caching the resulting * factory. * * return the proper factory to the caller */ extern "C" PR_IMPLEMENT(nsresult) NSGetFactory( nsISupports* aServMgr, const nsCID &aClass, const char *aClassName, const char *aContractID, nsIFactory **aFactory) { if (! aFactory) return NS_ERROR_NULL_POINTER; nsSanePluginFactoryImpl* factory = new nsSanePluginFactoryImpl(aClass, aClassName, aContractID); if ( factory == nsnull ) return NS_ERROR_OUT_OF_MEMORY; NS_ADDREF(factory); *aFactory = factory; return NS_OK; } char *buf; extern "C" PR_IMPLEMENT( nsresult ) NSRegisterSelf( nsISupports* aServMgr, const char* aPath ) { nsresult rv; nsCOMPtr servMgr( do_QueryInterface( aServMgr, &rv ) ); if ( NS_FAILED( rv ) ) return rv; nsCOMPtr compMgr = do_GetService( kComponentManagerCID, &rv ); if ( NS_FAILED( rv ) ) return rv; // Register the plugin control portion. rv = compMgr->RegisterComponent(knsSanePluginControlCID, "SANE Plugin Control", "@mozilla.org/plugins/sane-control;1", aPath, PR_TRUE, PR_TRUE ); // Register the plugin portion. nsString contractID; contractID.AssignWithConversion( NS_INLINE_PLUGIN_CONTRACTID_PREFIX ); contractID.AppendWithConversion(PLUGIN_MIME_TYPE); buf = ( char * )calloc( 2000, sizeof( char ) ); contractID.ToCString( buf, 1999 ); rv = compMgr->RegisterComponent( knsSanePluginInst, "SANE Plugin Component", buf, aPath, PR_TRUE, PR_TRUE); free( buf ); if ( NS_FAILED( rv ) ) return rv; return NS_OK; } extern "C" PR_IMPLEMENT( nsresult ) NSUnregisterSelf(nsISupports* aServMgr, const char* aPath) { nsresult rv; nsCOMPtr servMgr(do_QueryInterface(aServMgr, &rv)); if (NS_FAILED(rv)) return rv; nsCOMPtr compMgr = do_GetService(kComponentManagerCID, &rv); if (NS_FAILED(rv)) return rv; rv = compMgr->UnregisterComponent(knsSanePluginControlCID, aPath); if (NS_FAILED(rv)) return rv; return NS_OK; }