359 lines
14 KiB
C++
359 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "FormattedFieldWrapper.hxx"
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#include "Edit.hxx"
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#include "FormattedField.hxx"
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#include "EditBase.hxx"
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#include "services.hxx"
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#include <comphelper/processfactory.hxx>
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#include <cppuhelper/supportsservice.hxx>
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#include <connectivity/dbtools.hxx>
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#include <tools/debug.hxx>
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#include <vcl/svapp.hxx>
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#include <vcl/settings.hxx>
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namespace frm
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{
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::sdb;
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using namespace ::com::sun::star::sdbc;
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using namespace ::com::sun::star::sdbcx;
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using namespace ::com::sun::star::beans;
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using namespace ::com::sun::star::container;
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using namespace ::com::sun::star::form;
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using namespace ::com::sun::star::awt;
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using namespace ::com::sun::star::io;
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using namespace ::com::sun::star::lang;
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using namespace ::com::sun::star::util;
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Reference<XInterface> SAL_CALL OFormattedFieldWrapper_CreateInstance_ForceFormatted(const Reference<XMultiServiceFactory>& _rxFactory)
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{
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return OFormattedFieldWrapper::createFormattedFieldWrapper( comphelper::getComponentContext(_rxFactory), true);
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}
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InterfaceRef SAL_CALL OFormattedFieldWrapper_CreateInstance(const Reference<XMultiServiceFactory>& _rxFactory)
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{
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return OFormattedFieldWrapper::createFormattedFieldWrapper( comphelper::getComponentContext(_rxFactory), false);
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}
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OFormattedFieldWrapper::OFormattedFieldWrapper(const Reference<XComponentContext>& _rxFactory)
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:m_xContext(_rxFactory)
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{
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}
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InterfaceRef OFormattedFieldWrapper::createFormattedFieldWrapper(const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext>& _rxFactory, bool bActAsFormatted)
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{
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OFormattedFieldWrapper *pRef = new OFormattedFieldWrapper(_rxFactory);
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if (bActAsFormatted)
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{
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// instantiate an FormattedModel
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InterfaceRef xFormattedModel;
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// (instantiate it directly ..., as the OFormattedModel isn't
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// registered for any service names anymore)
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OFormattedModel* pModel = new OFormattedModel(pRef->m_xContext);
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query_interface(static_cast<XWeak*>(pModel), xFormattedModel);
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pRef->m_xAggregate = Reference<XAggregation> (xFormattedModel, UNO_QUERY);
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OSL_ENSURE(pRef->m_xAggregate.is(), "the OFormattedModel didn't have an XAggregation interface !");
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// _before_ setting the delegator, give it to the member references
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query_interface(xFormattedModel, pRef->m_xFormattedPart);
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pRef->m_pEditPart = rtl::Reference< OEditModel >(new OEditModel(pRef->m_xContext));
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}
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increment(pRef->m_refCount);
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if (pRef->m_xAggregate.is())
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{ // has to be in it's own block because of the temporary variable created by *this
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pRef->m_xAggregate->setDelegator(static_cast<XWeak*>(pRef));
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}
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InterfaceRef xRef(*pRef);
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decrement(pRef->m_refCount);
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return xRef;
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}
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Reference< XCloneable > SAL_CALL OFormattedFieldWrapper::createClone() throw (RuntimeException, std::exception)
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{
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ensureAggregate();
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rtl::Reference< OFormattedFieldWrapper > xRef(new OFormattedFieldWrapper(m_xContext));
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Reference< XCloneable > xCloneAccess;
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query_aggregation( m_xAggregate, xCloneAccess );
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// clone the aggregate
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if ( xCloneAccess.is() )
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{
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Reference< XCloneable > xClone = xCloneAccess->createClone();
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xRef->m_xAggregate = Reference< XAggregation >(xClone, UNO_QUERY);
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OSL_ENSURE(xRef->m_xAggregate.is(), "invalid aggregate cloned !");
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query_interface( Reference< XInterface >(xClone.get() ), xRef->m_xFormattedPart);
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if ( m_pEditPart.is() )
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{
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xRef->m_pEditPart = rtl::Reference< OEditModel >( new OEditModel(m_pEditPart.get(), m_xContext));
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}
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}
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else
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{ // the clone source does not yet have an aggregate -> we don't yet need one, too
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}
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if ( xRef->m_xAggregate.is() )
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{ // has to be in it's own block because of the temporary variable created by *this
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xRef->m_xAggregate->setDelegator(static_cast< XWeak* >(xRef.get()));
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}
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return xRef.get();
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}
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OFormattedFieldWrapper::~OFormattedFieldWrapper()
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{
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// release the aggregated object (if any)
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if (m_xAggregate.is())
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m_xAggregate->setDelegator(InterfaceRef ());
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}
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Any SAL_CALL OFormattedFieldWrapper::queryAggregation(const Type& _rType) throw (RuntimeException, std::exception)
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{
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Any aReturn;
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if (_rType.equals( cppu::UnoType<XTypeProvider>::get() ) )
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{ // a XTypeProvider interface needs a working aggregate - we don't want to give the type provider
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// of our base class (OFormattedFieldWrapper_Base) to the caller as it supplies nearly nothing
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ensureAggregate();
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if (m_xAggregate.is())
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aReturn = m_xAggregate->queryAggregation(_rType);
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}
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if (!aReturn.hasValue())
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{
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aReturn = OFormattedFieldWrapper_Base::queryAggregation(_rType);
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if ((_rType.equals( cppu::UnoType<XServiceInfo>::get() ) ) && aReturn.hasValue())
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{ // somebody requested an XServiceInfo interface and our base class provided it
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// check our aggregate if it has one, too
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ensureAggregate();
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}
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if (!aReturn.hasValue())
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{
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aReturn = ::cppu::queryInterface( _rType,
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static_cast< XPersistObject* >( this ),
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static_cast< XCloneable* >( this )
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);
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if (!aReturn.hasValue())
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{
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// somebody requests an interface other than the basics (XInterface) and other than
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// the two we can supply without an aggregate. So ensure
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// the aggregate exists.
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ensureAggregate();
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if (m_xAggregate.is())
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aReturn = m_xAggregate->queryAggregation(_rType);
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}
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}
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}
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return aReturn;
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}
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OUString SAL_CALL OFormattedFieldWrapper::getServiceName() throw(RuntimeException, std::exception)
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{
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// return the old compatibility name for an EditModel
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return OUString(FRM_COMPONENT_EDIT);
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}
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OUString SAL_CALL OFormattedFieldWrapper::getImplementationName( ) throw (RuntimeException, std::exception)
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{
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return OUString("com.sun.star.comp.forms.OFormattedFieldWrapper");
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}
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sal_Bool SAL_CALL OFormattedFieldWrapper::supportsService( const OUString& _rServiceName ) throw (RuntimeException, std::exception)
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{
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return cppu::supportsService(this, _rServiceName);
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}
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Sequence< OUString > SAL_CALL OFormattedFieldWrapper::getSupportedServiceNames( ) throw (RuntimeException, std::exception)
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{
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DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::getSupportedServiceNames: should never have made it 'til here without an aggregate!");
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Reference< XServiceInfo > xSI;
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m_xAggregate->queryAggregation(cppu::UnoType<XServiceInfo>::get()) >>= xSI;
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return xSI->getSupportedServiceNames();
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}
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void SAL_CALL OFormattedFieldWrapper::write(const Reference<XObjectOutputStream>& _rxOutStream) throw( IOException, RuntimeException, std::exception )
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{
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// can't write myself
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ensureAggregate();
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// if we act as real edit field, we can simple forward this write request
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if (!m_xFormattedPart.is())
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{
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Reference<XPersistObject> xAggregatePersistence;
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query_aggregation(m_xAggregate, xAggregatePersistence);
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DBG_ASSERT(xAggregatePersistence.is(), "OFormattedFieldWrapper::write : don't know how to handle this : can't write !");
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// oops ... We gave an XPersistObject interface to the caller but now we aren't an XPersistObject ...
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if (xAggregatePersistence.is())
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xAggregatePersistence->write(_rxOutStream);
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return;
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}
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// else we have to write an edit part first
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OSL_ENSURE(m_pEditPart.is(), "OFormattedFieldWrapper::write : formatted part without edit part ?");
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if ( !m_pEditPart.is() )
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throw RuntimeException( OUString(), *this );
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// for this we transfer the current props of the formatted part to the edit part
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Reference<XPropertySet> xFormatProps(m_xFormattedPart, UNO_QUERY);
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Reference<XPropertySet> xEditProps;
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query_interface(static_cast<XWeak*>(m_pEditPart.get()), xEditProps);
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Locale aAppLanguage = Application::GetSettings().GetUILanguageTag().getLocale();
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dbtools::TransferFormComponentProperties(xFormatProps, xEditProps, aAppLanguage);
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// then write the edit part, after switching to "fake mode"
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m_pEditPart->enableFormattedWriteFake();
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m_pEditPart->write(_rxOutStream);
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m_pEditPart->disableFormattedWriteFake();
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// and finally write the formatted part we're really interested in
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m_xFormattedPart->write(_rxOutStream);
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}
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void SAL_CALL OFormattedFieldWrapper::read(const Reference<XObjectInputStream>& _rxInStream) throw( IOException, RuntimeException, std::exception )
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{
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SolarMutexGuard g;
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if (m_xAggregate.is())
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{ // we alread did a decision if we're an EditModel or a FormattedModel
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// if we act as formatted, we have to read the edit part first
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if (m_xFormattedPart.is())
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{
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// two possible cases:
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// a) the stuff was written by a version which didn't work with an Edit header (all intermediate
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// versions >5.1 && <=568)
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// b) it was written by a version using edit headers
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// as we can distinguish a) from b) only after we have read the edit part, we need to remember the
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// position
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Reference<XMarkableStream> xInMarkable(_rxInStream, UNO_QUERY);
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DBG_ASSERT(xInMarkable.is(), "OFormattedFieldWrapper::read : can only work with markable streams !");
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sal_Int32 nBeforeEditPart = xInMarkable->createMark();
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m_pEditPart->read(_rxInStream);
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// this only works because an edit model can read the stuff written by a formatted model
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// (maybe with some assertions) , but not vice versa
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if (!m_pEditPart->lastReadWasFormattedFake())
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{ // case a), written with a version without the edit part fake, so seek to the start position, again
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xInMarkable->jumpToMark(nBeforeEditPart);
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}
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xInMarkable->deleteMark(nBeforeEditPart);
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}
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Reference<XPersistObject> xAggregatePersistence;
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query_aggregation(m_xAggregate, xAggregatePersistence);
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DBG_ASSERT(xAggregatePersistence.is(), "OFormattedFieldWrapper::read : don't know how to handle this : can't read !");
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// oops ... We gave an XPersistObject interface to the caller but now we aren't an XPersistObject ...
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if (xAggregatePersistence.is())
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xAggregatePersistence->read(_rxInStream);
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return;
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}
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// we have to decide from the data within the stream whether we should
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// be an EditModel or a FormattedModel
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{
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// let an OEditModel do the reading
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rtl::Reference< OEditModel > pBasicReader(new OEditModel(m_xContext));
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pBasicReader->read(_rxInStream);
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// was it really an edit model ?
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if (!pBasicReader->lastReadWasFormattedFake())
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{
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// yes -> all fine
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m_xAggregate = Reference< XAggregation >( pBasicReader.get() );
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}
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else
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{ // no -> substitute it with a formatted model
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// let the formmatted model do the reading
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m_xFormattedPart = Reference< XPersistObject >(new OFormattedModel(m_xContext));
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m_xFormattedPart->read(_rxInStream);
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m_pEditPart = pBasicReader;
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m_xAggregate = Reference< XAggregation >( m_xFormattedPart, UNO_QUERY );
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}
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}
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// do the aggregation
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increment(m_refCount);
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if (m_xAggregate.is())
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{ // has to be in it's own block because of the temporary variable created by *this
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m_xAggregate->setDelegator(static_cast<XWeak*>(this));
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}
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decrement(m_refCount);
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}
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void OFormattedFieldWrapper::ensureAggregate()
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{
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if (m_xAggregate.is())
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return;
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{
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// instantiate an EditModel (the only place where we are allowed to decide that we're an FormattedModel
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// is in ::read)
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InterfaceRef xEditModel = m_xContext->getServiceManager()->createInstanceWithContext(FRM_SUN_COMPONENT_TEXTFIELD, m_xContext);
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if (!xEditModel.is())
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{
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// arghhh ... instantiate it directly ... it's dirty, but we really need this aggregate
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OEditModel* pModel = new OEditModel(m_xContext);
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query_interface(static_cast<XWeak*>(pModel), xEditModel);
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}
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m_xAggregate = Reference<XAggregation> (xEditModel, UNO_QUERY);
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DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::ensureAggregate : the OEditModel didn't have an XAggregation interface !");
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{
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Reference< XServiceInfo > xSI(m_xAggregate, UNO_QUERY);
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if (!xSI.is())
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{
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OSL_FAIL("OFormattedFieldWrapper::ensureAggregate: the aggregate has no XServiceInfo!");
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m_xAggregate.clear();
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}
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}
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}
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increment(m_refCount);
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if (m_xAggregate.is())
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{ // has to be in it's own block because of the temporary variable created by *this
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m_xAggregate->setDelegator(static_cast<XWeak*>(this));
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}
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decrement(m_refCount);
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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