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Diffstat (limited to 'forms/source/component/FormattedFieldWrapper.cxx')
| -rw-r--r-- | forms/source/component/FormattedFieldWrapper.cxx | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/forms/source/component/FormattedFieldWrapper.cxx b/forms/source/component/FormattedFieldWrapper.cxx new file mode 100644 index 000000000..8a8f27830 --- /dev/null +++ b/forms/source/component/FormattedFieldWrapper.cxx @@ -0,0 +1,360 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 . + */ + +#include "FormattedFieldWrapper.hxx" +#include "Edit.hxx" +#include "FormattedField.hxx" +#include <services.hxx> +#include <cppuhelper/supportsservice.hxx> +#include <cppuhelper/queryinterface.hxx> +#include <connectivity/dbtools.hxx> +#include <tools/debug.hxx> +#include <vcl/svapp.hxx> +#include <vcl/settings.hxx> +#include <i18nlangtag/languagetag.hxx> +#include <com/sun/star/io/XMarkableStream.hpp> + +using namespace comphelper; +using namespace frm; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::sdb; +using namespace ::com::sun::star::sdbc; +using namespace ::com::sun::star::sdbcx; +using namespace ::com::sun::star::beans; +using namespace ::com::sun::star::container; +using namespace ::com::sun::star::form; +using namespace ::com::sun::star::awt; +using namespace ::com::sun::star::io; +using namespace ::com::sun::star::lang; +using namespace ::com::sun::star::util; + +OFormattedFieldWrapper::OFormattedFieldWrapper(const Reference<XComponentContext>& _rxFactory) + :m_xContext(_rxFactory) +{ +} + +css::uno::Reference<css::uno::XInterface> OFormattedFieldWrapper::createFormattedFieldWrapper(const css::uno::Reference< css::uno::XComponentContext>& _rxFactory, bool bActAsFormatted) +{ + rtl::Reference<OFormattedFieldWrapper> pRef = new OFormattedFieldWrapper(_rxFactory); + + if (bActAsFormatted) + { + // instantiate a FormattedModel + // (instantiate it directly ..., as the OFormattedModel isn't + // registered for any service names anymore) + rtl::Reference<OFormattedModel> pModel = new OFormattedModel(pRef->m_xContext); + + pRef->m_xAggregate = pModel; + OSL_ENSURE(pRef->m_xAggregate.is(), "the OFormattedModel didn't have an XAggregation interface !"); + + // _before_ setting the delegator, give it to the member references + pRef->m_xFormattedPart = pModel; + pRef->m_pEditPart.set(new OEditModel(pRef->m_xContext)); + } + + if (pRef->m_xAggregate.is()) + { // has to be in its own block because of the temporary variable created by *this + pRef->m_xAggregate->setDelegator(static_cast<XWeak*>(pRef.get())); + } + + css::uno::Reference<css::uno::XInterface> xRef(*pRef); + + return xRef; +} + +Reference< XCloneable > SAL_CALL OFormattedFieldWrapper::createClone() +{ + ensureAggregate(); + + rtl::Reference< OFormattedFieldWrapper > xRef(new OFormattedFieldWrapper(m_xContext)); + + Reference< XCloneable > xCloneAccess; + query_aggregation( m_xAggregate, xCloneAccess ); + + // clone the aggregate + if ( xCloneAccess.is() ) + { + Reference< XCloneable > xClone = xCloneAccess->createClone(); + xRef->m_xAggregate.set(xClone, UNO_QUERY); + OSL_ENSURE(xRef->m_xAggregate.is(), "invalid aggregate cloned !"); + + xRef->m_xFormattedPart.set( + Reference< XInterface >(xClone), css::uno::UNO_QUERY); + + if ( m_pEditPart.is() ) + { + xRef->m_pEditPart.set( new OEditModel(m_pEditPart.get(), m_xContext) ); + } + } + else + { // the clone source does not yet have an aggregate -> we don't yet need one, too + } + + if ( xRef->m_xAggregate.is() ) + { // has to be in its own block because of the temporary variable created by *this + xRef->m_xAggregate->setDelegator(static_cast< XWeak* >(xRef.get())); + } + + return xRef; +} + +OFormattedFieldWrapper::~OFormattedFieldWrapper() +{ + // release the aggregated object (if any) + if (m_xAggregate.is()) + m_xAggregate->setDelegator(css::uno::Reference<css::uno::XInterface> ()); + +} + +Any SAL_CALL OFormattedFieldWrapper::queryAggregation(const Type& _rType) +{ + Any aReturn; + + if (_rType.equals( cppu::UnoType<XTypeProvider>::get() ) ) + { // a XTypeProvider interface needs a working aggregate - we don't want to give the type provider + // of our base class (OFormattedFieldWrapper_Base) to the caller as it supplies nearly nothing + ensureAggregate(); + if (m_xAggregate.is()) + aReturn = m_xAggregate->queryAggregation(_rType); + } + + if (!aReturn.hasValue()) + { + aReturn = OFormattedFieldWrapper_Base::queryAggregation(_rType); + + if ((_rType.equals( cppu::UnoType<XServiceInfo>::get() ) ) && aReturn.hasValue()) + { // somebody requested an XServiceInfo interface and our base class provided it + // check our aggregate if it has one, too + ensureAggregate(); + } + + if (!aReturn.hasValue()) + { + aReturn = ::cppu::queryInterface( _rType, + static_cast< XPersistObject* >( this ), + static_cast< XCloneable* >( this ) + ); + + if (!aReturn.hasValue()) + { + // somebody requests an interface other than the basics (XInterface) and other than + // the two we can supply without an aggregate. So ensure + // the aggregate exists. + ensureAggregate(); + if (m_xAggregate.is()) + aReturn = m_xAggregate->queryAggregation(_rType); + } + } + } + + return aReturn; +} + +OUString SAL_CALL OFormattedFieldWrapper::getServiceName() +{ + // return the old compatibility name for an EditModel + return FRM_COMPONENT_EDIT; +} + +OUString SAL_CALL OFormattedFieldWrapper::getImplementationName( ) +{ + return "com.sun.star.comp.forms.OFormattedFieldWrapper_ForcedFormatted"; +} + +sal_Bool SAL_CALL OFormattedFieldWrapper::supportsService( const OUString& _rServiceName ) +{ + return cppu::supportsService(this, _rServiceName); +} + +Sequence< OUString > SAL_CALL OFormattedFieldWrapper::getSupportedServiceNames( ) +{ + DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::getSupportedServiceNames: should never have made it 'til here without an aggregate!"); + Reference< XServiceInfo > xSI; + m_xAggregate->queryAggregation(cppu::UnoType<XServiceInfo>::get()) >>= xSI; + return xSI->getSupportedServiceNames(); +} + +void SAL_CALL OFormattedFieldWrapper::write(const Reference<XObjectOutputStream>& _rxOutStream) +{ + // can't write myself + ensureAggregate(); + + // if we act as real edit field, we can simple forward this write request + if (!m_xFormattedPart.is()) + { + Reference<XPersistObject> xAggregatePersistence; + query_aggregation(m_xAggregate, xAggregatePersistence); + DBG_ASSERT(xAggregatePersistence.is(), "OFormattedFieldWrapper::write : don't know how to handle this : can't write !"); + // oops ... We gave an XPersistObject interface to the caller but now we aren't an XPersistObject ... + if (xAggregatePersistence.is()) + xAggregatePersistence->write(_rxOutStream); + return; + } + + // else we have to write an edit part first + OSL_ENSURE(m_pEditPart.is(), "OFormattedFieldWrapper::write : formatted part without edit part ?"); + if ( !m_pEditPart.is() ) + throw RuntimeException( OUString(), *this ); + + // for this we transfer the current props of the formatted part to the edit part + Reference<XPropertySet> xFormatProps(m_xFormattedPart, UNO_QUERY); + Reference<XPropertySet> xEditProps = m_pEditPart; + + Locale aAppLanguage = Application::GetSettings().GetUILanguageTag().getLocale(); + dbtools::TransferFormComponentProperties(xFormatProps, xEditProps, aAppLanguage); + + // then write the edit part, after switching to "fake mode" + m_pEditPart->enableFormattedWriteFake(); + m_pEditPart->write(_rxOutStream); + m_pEditPart->disableFormattedWriteFake(); + + // and finally write the formatted part we're really interested in + m_xFormattedPart->write(_rxOutStream); +} + +void SAL_CALL OFormattedFieldWrapper::read(const Reference<XObjectInputStream>& _rxInStream) +{ + SolarMutexGuard g; + if (m_xAggregate.is()) + { // we already made a decision if we're an EditModel or a FormattedModel + + // if we act as formatted, we have to read the edit part first + if (m_xFormattedPart.is()) + { + // two possible cases: + // a) the stuff was written by a version which didn't work with an Edit header (all intermediate + // versions >5.1 && <=568) + // b) it was written by a version using edit headers + // as we can distinguish a) from b) only after we have read the edit part, we need to remember the + // position + Reference<XMarkableStream> xInMarkable(_rxInStream, UNO_QUERY); + DBG_ASSERT(xInMarkable.is(), "OFormattedFieldWrapper::read : can only work with markable streams !"); + sal_Int32 nBeforeEditPart = xInMarkable->createMark(); + + m_pEditPart->read(_rxInStream); + // this only works because an edit model can read the stuff written by a formatted model + // (maybe with some assertions) , but not vice versa + if (!m_pEditPart->lastReadWasFormattedFake()) + { // case a), written with a version without the edit part fake, so seek to the start position, again + xInMarkable->jumpToMark(nBeforeEditPart); + } + xInMarkable->deleteMark(nBeforeEditPart); + } + + Reference<XPersistObject> xAggregatePersistence; + query_aggregation(m_xAggregate, xAggregatePersistence); + DBG_ASSERT(xAggregatePersistence.is(), "OFormattedFieldWrapper::read : don't know how to handle this : can't read !"); + // oops ... We gave an XPersistObject interface to the caller but now we aren't an XPersistObject ... + + if (xAggregatePersistence.is()) + xAggregatePersistence->read(_rxInStream); + return; + } + + // we have to decide from the data within the stream whether we should + // be an EditModel or a FormattedModel + + { + // let an OEditModel do the reading + rtl::Reference< OEditModel > pBasicReader(new OEditModel(m_xContext)); + pBasicReader->read(_rxInStream); + + // was it really an edit model ? + if (!pBasicReader->lastReadWasFormattedFake()) + { + // yes -> all fine + m_xAggregate = pBasicReader; + } + else + { // no -> substitute it with a formatted model + // let the formatted model do the reading + m_xFormattedPart.set(new OFormattedModel(m_xContext)); + m_xFormattedPart->read(_rxInStream); + m_pEditPart = pBasicReader; + m_xAggregate.set( m_xFormattedPart, UNO_QUERY ); + } + } + + // do the aggregation + osl_atomic_increment(&m_refCount); + if (m_xAggregate.is()) + { // has to be in its own block because of the temporary variable created by *this + m_xAggregate->setDelegator(static_cast<XWeak*>(this)); + } + osl_atomic_decrement(&m_refCount); +} + +void OFormattedFieldWrapper::ensureAggregate() +{ + if (m_xAggregate.is()) + return; + + { + // instantiate an EditModel (the only place where we are allowed to decide that we're a FormattedModel + // is in ::read) + css::uno::Reference<css::uno::XInterface> xEditModel = m_xContext->getServiceManager()->createInstanceWithContext(FRM_SUN_COMPONENT_TEXTFIELD, m_xContext); + if (!xEditModel.is()) + { + // arghhh... instantiate it directly... it's dirty, but we really need this aggregate + rtl::Reference<OEditModel> pModel = new OEditModel(m_xContext); + xEditModel.set(static_cast<XWeak*>(pModel.get()), css::uno::UNO_QUERY); + } + + m_xAggregate.set(xEditModel, UNO_QUERY); + DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::ensureAggregate : the OEditModel didn't have an XAggregation interface !"); + + { + Reference< XServiceInfo > xSI(m_xAggregate, UNO_QUERY); + if (!xSI.is()) + { + OSL_FAIL("OFormattedFieldWrapper::ensureAggregate: the aggregate has no XServiceInfo!"); + m_xAggregate.clear(); + } + } + } + + osl_atomic_increment(&m_refCount); + if (m_xAggregate.is()) + { // has to be in its own block because of the temporary variable created by *this + m_xAggregate->setDelegator(static_cast<XWeak*>(this)); + } + osl_atomic_decrement(&m_refCount); +} + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +com_sun_star_form_OFormattedFieldWrapper_get_implementation(css::uno::XComponentContext* component, + css::uno::Sequence<css::uno::Any> const &) +{ + css::uno::Reference<css::uno::XInterface> inst( + OFormattedFieldWrapper::createFormattedFieldWrapper(component, false)); + inst->acquire(); + return inst.get(); +} + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +com_sun_star_comp_forms_OFormattedFieldWrapper_ForcedFormatted_get_implementation(css::uno::XComponentContext* component, + css::uno::Sequence<css::uno::Any> const &) +{ + css::uno::Reference<css::uno::XInterface> inst( + OFormattedFieldWrapper::createFormattedFieldWrapper(component, true)); + inst->acquire(); + return inst.get(); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |