/* -*- 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 #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace ::com::sun::star; namespace { struct UnoControlHolder { uno::Reference< awt::XControl > mxControl; OUString msName; public: UnoControlHolder( OUString aName, uno::Reference< awt::XControl > xControl ) : mxControl(std::move( xControl )), msName(std::move( aName )) { } const OUString& getName() const { return msName; } const uno::Reference< awt::XControl >& getControl() const { return mxControl; } }; } class UnoControlHolderList { public: typedef sal_Int32 ControlIdentifier; private: typedef std::shared_ptr< UnoControlHolder > ControlInfo; typedef ::std::map< ControlIdentifier, ControlInfo > ControlMap; private: ControlMap maControls; public: UnoControlHolderList(); /** adds a control with the given name to the list @param _rxControl the control to add. Must not be @param _pBName the name of the control, or if an automatic name should be generated @return the identifier of the newly added control */ ControlIdentifier addControl( const uno::Reference< awt::XControl >& _rxControl, const OUString* _pName ); /** determines whether or not the list is empty */ bool empty() const { return maControls.empty(); } /** retrieves all controls currently in the list */ void getControls( uno::Sequence< uno::Reference< awt::XControl > >& _out_rControls ) const; /** retrieves all identifiers of all controls currently in the list */ void getIdentifiers( uno::Sequence< sal_Int32 >& _out_rIdentifiers ) const; /** returns the first control which is registered under the given name */ uno::Reference< awt::XControl > getControlForName( const OUString& _rName ) const; /** returns the identifier which a control is registered for, or -1 if the control isn't registered */ ControlIdentifier getControlIdentifier( const uno::Reference< awt::XControl >& _rxControl ); /** retrieves the control for a given id @param _nIdentifier the identifier for the control @param _out_rxControl takes the XControl upon successful return @return if and only if a control with the given id is part of the list */ bool getControlForIdentifier( ControlIdentifier _nIdentifier, uno::Reference< awt::XControl >& _out_rxControl ) const; /** removes a control from the list, given by id @param _nId The identifier of the control to remove. */ void removeControlById( ControlIdentifier _nId ); /** replaces a control from the list with another one @param _nId The identifier of the control to replace @param _rxNewControl the new control to put into the list */ void replaceControlById( ControlIdentifier _nId, const uno::Reference< awt::XControl >& _rxNewControl ); private: /** adds a control @param _rxControl the control to add to the container @param _pName pointer to the name of the control. Might be , in this case, a name is generated. @return the identifier of the newly inserted control */ ControlIdentifier impl_addControl( const uno::Reference< awt::XControl >& _rxControl, const OUString* _pName ); /** finds a free identifier @throw uno::RuntimeException if no free identifier can be found */ ControlIdentifier impl_getFreeIdentifier_throw(); /** finds a free name @throw uno::RuntimeException if no free name can be found */ OUString impl_getFreeName_throw(); }; UnoControlHolderList::UnoControlHolderList() { } UnoControlHolderList::ControlIdentifier UnoControlHolderList::addControl( const uno::Reference< awt::XControl >& _rxControl, const OUString* _pName ) { return impl_addControl( _rxControl, _pName ); } void UnoControlHolderList::getControls( uno::Sequence< uno::Reference< awt::XControl > >& _out_rControls ) const { _out_rControls.realloc( maControls.size() ); uno::Reference< awt::XControl >* pControls = _out_rControls.getArray(); for (const auto& rEntry : maControls) { *pControls = rEntry.second->getControl(); ++pControls; } } void UnoControlHolderList::getIdentifiers( uno::Sequence< sal_Int32 >& _out_rIdentifiers ) const { _out_rIdentifiers.realloc( maControls.size() ); sal_Int32* pIdentifiers = _out_rIdentifiers.getArray(); for (const auto& rEntry : maControls) { *pIdentifiers = rEntry.first; ++pIdentifiers; } } uno::Reference< awt::XControl > UnoControlHolderList::getControlForName( const OUString& _rName ) const { auto loop = std::find_if(maControls.begin(), maControls.end(), [&_rName](const ControlMap::value_type& rEntry) { return rEntry.second->getName() == _rName; }); if (loop != maControls.end()) return loop->second->getControl(); return uno::Reference< awt::XControl >(); } UnoControlHolderList::ControlIdentifier UnoControlHolderList::getControlIdentifier( const uno::Reference< awt::XControl >& _rxControl ) { auto loop = std::find_if(maControls.begin(), maControls.end(), [&_rxControl](const ControlMap::value_type& rEntry) { return rEntry.second->getControl().get() == _rxControl.get(); }); if (loop != maControls.end()) return loop->first; return -1; } bool UnoControlHolderList::getControlForIdentifier( UnoControlHolderList::ControlIdentifier _nIdentifier, uno::Reference< awt::XControl >& _out_rxControl ) const { ControlMap::const_iterator pos = maControls.find( _nIdentifier ); if ( pos == maControls.end() ) return false; _out_rxControl = pos->second->getControl(); return true; } void UnoControlHolderList::removeControlById( UnoControlHolderList::ControlIdentifier _nId ) { ControlMap::iterator pos = maControls.find( _nId ); DBG_ASSERT( pos != maControls.end(), "UnoControlHolderList::removeControlById: invalid id!" ); if ( pos == maControls.end() ) return; maControls.erase( pos ); } void UnoControlHolderList::replaceControlById( ControlIdentifier _nId, const uno::Reference< awt::XControl >& _rxNewControl ) { DBG_ASSERT( _rxNewControl.is(), "UnoControlHolderList::replaceControlById: invalid new control!" ); ControlMap::iterator pos = maControls.find( _nId ); DBG_ASSERT( pos != maControls.end(), "UnoControlHolderList::replaceControlById: invalid id!" ); if ( pos == maControls.end() ) return; pos->second = std::make_shared( pos->second->getName(), _rxNewControl ); } UnoControlHolderList::ControlIdentifier UnoControlHolderList::impl_addControl( const uno::Reference< awt::XControl >& _rxControl, const OUString* _pName ) { DBG_ASSERT( _rxControl.is(), "UnoControlHolderList::impl_addControl: invalid control!" ); OUString sName = _pName ? *_pName : impl_getFreeName_throw(); sal_Int32 nId = impl_getFreeIdentifier_throw(); maControls[ nId ] = std::make_shared( sName, _rxControl ); return nId; } UnoControlHolderList::ControlIdentifier UnoControlHolderList::impl_getFreeIdentifier_throw() { for ( ControlIdentifier candidateId = 0; candidateId < ::std::numeric_limits< ControlIdentifier >::max(); ++candidateId ) { ControlMap::const_iterator existent = maControls.find( candidateId ); if ( existent == maControls.end() ) return candidateId; } throw uno::RuntimeException(u"out of identifiers"_ustr ); } OUString UnoControlHolderList::impl_getFreeName_throw() { for ( ControlIdentifier candidateId = 0; candidateId < ::std::numeric_limits< ControlIdentifier >::max(); ++candidateId ) { OUString candidateName( "control_" + OUString::number( candidateId ) ); if ( std::none_of(maControls.begin(), maControls.end(), [&candidateName](const ControlMap::value_type& rEntry) { return rEntry.second->getName() == candidateName; }) ) return candidateName; } throw uno::RuntimeException(u"out of identifiers"_ustr ); } // Function to set the controls' visibility according // to the dialog's "Step" property static void implUpdateVisibility ( sal_Int32 nDialogStep, const uno::Reference< awt::XControlContainer >& xControlContainer ) { const uno::Sequence< uno::Reference< awt::XControl > > aCtrls = xControlContainer->getControls(); bool bCompleteVisible = (nDialogStep == 0); for( const uno::Reference< awt::XControl >& xControl : aCtrls ) { bool bVisible = bCompleteVisible; if( !bVisible ) { uno::Reference< awt::XControlModel > xModel( xControl->getModel() ); uno::Reference< beans::XPropertySet > xPSet ( xModel, uno::UNO_QUERY ); uno::Reference< beans::XPropertySetInfo > xInfo = xPSet->getPropertySetInfo(); OUString aPropName( u"Step"_ustr ); sal_Int32 nControlStep = 0; if ( xInfo->hasPropertyByName( aPropName ) ) { uno::Any aVal = xPSet->getPropertyValue( aPropName ); aVal >>= nControlStep; } bVisible = (nControlStep == 0) || (nControlStep == nDialogStep); } uno::Reference< awt::XWindow> xWindow ( xControl, uno::UNO_QUERY ); if( xWindow.is() ) xWindow->setVisible( bVisible ); } } typedef ::cppu::WeakImplHelper< beans::XPropertyChangeListener > PropertyChangeListenerHelper; namespace { class DialogStepChangedListener: public PropertyChangeListenerHelper { private: uno::Reference< awt::XControlContainer > mxControlContainer; public: explicit DialogStepChangedListener( uno::Reference< awt::XControlContainer > xControlContainer ) : mxControlContainer(std::move( xControlContainer )) {} // XEventListener virtual void SAL_CALL disposing( const lang::EventObject& Source ) override; // XPropertyChangeListener virtual void SAL_CALL propertyChange( const beans::PropertyChangeEvent& evt ) override; }; } void SAL_CALL DialogStepChangedListener::disposing( const lang::EventObject& /*_rSource*/) { mxControlContainer.clear(); } void SAL_CALL DialogStepChangedListener::propertyChange( const beans::PropertyChangeEvent& evt ) { // evt.PropertyName HAS to be "Step" because we only use the listener for that sal_Int32 nDialogStep = 0; evt.NewValue >>= nDialogStep; implUpdateVisibility( nDialogStep, mxControlContainer ); } UnoControlContainer::UnoControlContainer() :maCListeners( *this ) { mpControls.reset(new UnoControlHolderList); } UnoControlContainer::UnoControlContainer(const uno::Reference< awt::XVclWindowPeer >& xP ) :maCListeners( *this ) { setPeer( xP ); mbDisposePeer = false; mpControls.reset(new UnoControlHolderList); } UnoControlContainer::~UnoControlContainer() { } void UnoControlContainer::ImplActivateTabControllers() { for ( auto& rTabController : asNonConstRange(maTabControllers) ) { rTabController->setContainer( this ); rTabController->activateTabOrder(); } } // lang::XComponent void UnoControlContainer::dispose( ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); lang::EventObject aDisposeEvent; aDisposeEvent.Source = static_cast< uno::XAggregation* >( this ); // Notify listeners about disposal of this Container (This is much faster if they // listen on the controls and the container). maDisposeListeners.disposeAndClear( aDisposeEvent ); maCListeners.disposeAndClear( aDisposeEvent ); const uno::Sequence< uno::Reference< awt::XControl > > aCtrls = getControls(); for( uno::Reference< awt::XControl > const & control : aCtrls ) { removingControl( control ); // Delete control control->dispose(); } // Delete all structures mpControls.reset(new UnoControlHolderList); UnoControlBase::dispose(); } // lang::XEventListener void UnoControlContainer::disposing( const lang::EventObject& _rEvt ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); uno::Reference< awt::XControl > xControl( _rEvt.Source, uno::UNO_QUERY ); if ( xControl.is() ) removeControl( xControl ); UnoControlBase::disposing( _rEvt ); } // container::XContainer void UnoControlContainer::addContainerListener( const uno::Reference< container::XContainerListener >& rxListener ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); maCListeners.addInterface( rxListener ); } void UnoControlContainer::removeContainerListener( const uno::Reference< container::XContainerListener >& rxListener ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); maCListeners.removeInterface( rxListener ); } ::sal_Int32 SAL_CALL UnoControlContainer::insert( const uno::Any& _rElement ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); uno::Reference< awt::XControl > xControl; if ( !( _rElement >>= xControl ) || !xControl.is() ) throw lang::IllegalArgumentException( u"Elements must support the XControl interface."_ustr, *this, 1 ); return impl_addControl( xControl ); } void SAL_CALL UnoControlContainer::removeByIdentifier( ::sal_Int32 _nIdentifier ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); uno::Reference< awt::XControl > xControl; if ( !mpControls->getControlForIdentifier( _nIdentifier, xControl ) ) throw container::NoSuchElementException( u"There is no element with the given identifier."_ustr, *this ); impl_removeControl( _nIdentifier, xControl ); } void SAL_CALL UnoControlContainer::replaceByIdentifer( ::sal_Int32 _nIdentifier, const uno::Any& _rElement ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); uno::Reference< awt::XControl > xExistentControl; if ( !mpControls->getControlForIdentifier( _nIdentifier, xExistentControl ) ) throw container::NoSuchElementException( u"There is no element with the given identifier."_ustr, *this ); uno::Reference< awt::XControl > xNewControl; if ( !( _rElement >>= xNewControl ) ) throw lang::IllegalArgumentException( u"Elements must support the XControl interface."_ustr, *this, 1 ); removingControl( xExistentControl ); mpControls->replaceControlById( _nIdentifier, xNewControl ); addingControl( xNewControl ); impl_createControlPeerIfNecessary( xNewControl ); if ( maCListeners.getLength() ) { container::ContainerEvent aEvent; aEvent.Source = *this; aEvent.Accessor <<= _nIdentifier; aEvent.Element <<= xNewControl; aEvent.ReplacedElement <<= xExistentControl; maCListeners.elementReplaced( aEvent ); } } uno::Any SAL_CALL UnoControlContainer::getByIdentifier( ::sal_Int32 _nIdentifier ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); uno::Reference< awt::XControl > xControl; if ( !mpControls->getControlForIdentifier( _nIdentifier, xControl ) ) throw container::NoSuchElementException(); return uno::Any( xControl ); } uno::Sequence< ::sal_Int32 > SAL_CALL UnoControlContainer::getIdentifiers( ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); uno::Sequence< ::sal_Int32 > aIdentifiers; mpControls->getIdentifiers( aIdentifiers ); return aIdentifiers; } // container::XElementAccess uno::Type SAL_CALL UnoControlContainer::getElementType( ) { return cppu::UnoType::get(); } sal_Bool SAL_CALL UnoControlContainer::hasElements( ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); return !mpControls->empty(); } // awt::XControlContainer void UnoControlContainer::setStatusText( const OUString& rStatusText ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); // Descend the parent hierarchy uno::Reference< awt::XControlContainer > xContainer( mxContext, uno::UNO_QUERY ); if( xContainer.is() ) xContainer->setStatusText( rStatusText ); } uno::Sequence< uno::Reference< awt::XControl > > UnoControlContainer::getControls( ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); uno::Sequence< uno::Reference< awt::XControl > > aControls; mpControls->getControls( aControls ); return aControls; } uno::Reference< awt::XControl > UnoControlContainer::getControl( const OUString& rName ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); return mpControls->getControlForName( rName ); } void UnoControlContainer::addingControl( const uno::Reference< awt::XControl >& _rxControl ) { if ( _rxControl.is() ) { uno::Reference< uno::XInterface > xThis; OWeakAggObject::queryInterface( cppu::UnoType::get() ) >>= xThis; _rxControl->setContext( xThis ); _rxControl->addEventListener( this ); } } void UnoControlContainer::impl_createControlPeerIfNecessary( const uno::Reference< awt::XControl >& _rxControl ) { OSL_PRECOND( _rxControl.is(), "UnoControlContainer::impl_createControlPeerIfNecessary: invalid control, this will crash!" ); // if the container already has a peer, then also create a peer for the control uno::Reference< awt::XWindowPeer > xMyPeer( getPeer() ); if( xMyPeer.is() ) { _rxControl->createPeer( nullptr, xMyPeer ); ImplActivateTabControllers(); } } sal_Int32 UnoControlContainer::impl_addControl( const uno::Reference< awt::XControl >& _rxControl, const OUString* _pName ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); UnoControlHolderList::ControlIdentifier id = mpControls->addControl( _rxControl, _pName ); addingControl( _rxControl ); impl_createControlPeerIfNecessary( _rxControl ); if ( maCListeners.getLength() ) { container::ContainerEvent aEvent; aEvent.Source = *this; if (_pName) aEvent.Accessor <<= *_pName; else aEvent.Accessor <<= static_cast(id); aEvent.Element <<= _rxControl; maCListeners.elementInserted( aEvent ); } return id; } void UnoControlContainer::addControl( const OUString& rName, const uno::Reference< awt::XControl >& rControl ) { if ( rControl.is() ) impl_addControl( rControl, &rName ); } void UnoControlContainer::removingControl( const uno::Reference< awt::XControl >& _rxControl ) { if ( _rxControl.is() ) { _rxControl->removeEventListener( this ); _rxControl->setContext( nullptr ); } } void UnoControlContainer::impl_removeControl( sal_Int32 _nId, const uno::Reference< awt::XControl >& _rxControl ) { #ifdef DBG_UTIL { uno::Reference< awt::XControl > xControl; bool bHas = mpControls->getControlForIdentifier( _nId, xControl ); DBG_ASSERT( bHas && xControl == _rxControl, "UnoControlContainer::impl_removeControl: inconsistency in the parameters!" ); } #endif removingControl( _rxControl ); mpControls->removeControlById( _nId ); if ( maCListeners.getLength() ) { container::ContainerEvent aEvent; aEvent.Source = *this; aEvent.Accessor <<= _nId; aEvent.Element <<= _rxControl; maCListeners.elementRemoved( aEvent ); } } void UnoControlContainer::removeControl( const uno::Reference< awt::XControl >& _rxControl ) { if ( _rxControl.is() ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); UnoControlHolderList::ControlIdentifier id = mpControls->getControlIdentifier( _rxControl ); if ( id != -1 ) impl_removeControl( id, _rxControl ); } } // awt::XUnoControlContainer void UnoControlContainer::setTabControllers( const uno::Sequence< uno::Reference< awt::XTabController > >& TabControllers ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); maTabControllers = TabControllers; } uno::Sequence< uno::Reference< awt::XTabController > > UnoControlContainer::getTabControllers( ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); return maTabControllers; } void UnoControlContainer::addTabController( const uno::Reference< awt::XTabController >& TabController ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); sal_uInt32 nCount = maTabControllers.getLength(); maTabControllers.realloc( nCount + 1 ); maTabControllers.getArray()[ nCount ] = TabController; } void UnoControlContainer::removeTabController( const uno::Reference< awt::XTabController >& TabController ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); auto pTabController = std::find_if(std::cbegin(maTabControllers), std::cend(maTabControllers), [&TabController](const uno::Reference< awt::XTabController >& rTabController) { return rTabController.get() == TabController.get(); }); if (pTabController != std::cend(maTabControllers)) { auto n = static_cast(std::distance(std::cbegin(maTabControllers), pTabController)); ::comphelper::removeElementAt( maTabControllers, n ); } } // awt::XControl void UnoControlContainer::createPeer( const uno::Reference< awt::XToolkit >& rxToolkit, const uno::Reference< awt::XWindowPeer >& rParent ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); if( getPeer().is() ) return; bool bVis = maComponentInfos.bVisible; if( bVis ) UnoControl::setVisible( false ); // Create a new peer UnoControl::createPeer( rxToolkit, rParent ); // Create all children's peers if ( !mbCreatingCompatiblePeer ) { // Evaluate "Step" property uno::Reference< awt::XControlModel > xModel( getModel() ); uno::Reference< beans::XPropertySet > xPSet ( xModel, uno::UNO_QUERY ); uno::Reference< beans::XPropertySetInfo > xInfo = xPSet->getPropertySetInfo(); OUString aPropName( u"Step"_ustr ); if ( xInfo->hasPropertyByName( aPropName ) ) { css::uno::Any aVal = xPSet->getPropertyValue( aPropName ); sal_Int32 nDialogStep = 0; aVal >>= nDialogStep; uno::Reference< awt::XControlContainer > xContainer = static_cast< awt::XControlContainer* >(this); implUpdateVisibility( nDialogStep, xContainer ); uno::Reference< beans::XPropertyChangeListener > xListener = new DialogStepChangedListener(xContainer); xPSet->addPropertyChangeListener( aPropName, xListener ); } uno::Sequence< uno::Reference< awt::XControl > > aCtrls = getControls(); for( auto& rCtrl : asNonConstRange(aCtrls) ) rCtrl->createPeer( rxToolkit, getPeer() ); uno::Reference< awt::XVclContainerPeer > xC( getPeer(), uno::UNO_QUERY ); if ( xC.is() ) xC->enableDialogControl( true ); ImplActivateTabControllers(); } if( bVis && !isDesignMode() ) UnoControl::setVisible( true ); } // awt::XWindow void UnoControlContainer::setVisible( sal_Bool bVisible ) { ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() ); UnoControl::setVisible( bVisible ); if( !mxContext.is() && bVisible ) // This is a Topwindow, thus show it automatically createPeer( uno::Reference< awt::XToolkit > (), uno::Reference< awt::XWindowPeer > () ); } OUString UnoControlContainer::getImplementationName() { return u"stardiv.Toolkit.UnoControlContainer"_ustr; } css::uno::Sequence UnoControlContainer::getSupportedServiceNames() { auto s(UnoControlBase::getSupportedServiceNames()); s.realloc(s.getLength() + 2); auto ps = s.getArray(); ps[s.getLength() - 2] = "com.sun.star.awt.UnoControlContainer"; ps[s.getLength() - 1] = "stardiv.vcl.control.ControlContainer"; return s; } void UnoControlContainer::PrepareWindowDescriptor( css::awt::WindowDescriptor& rDesc ) { // HACK due to the fact that we can't really use VSCROLL & HSCROLL // for Dialog ( css::awt::VclWindowPeerAttribute::VSCROLL // has the same value as // css::awt::WindowAttribute::NODECORATION ) // For convenience in the PropBrowse using HSCROLL and VSCROLL ensures // the Correct text. We exchange them here and the control knows // about this hack ( it sucks badly I know ) if ( rDesc.WindowAttributes & css::awt::VclWindowPeerAttribute::VSCROLL ) { rDesc.WindowAttributes &= ~css::awt::VclWindowPeerAttribute::VSCROLL; rDesc.WindowAttributes |= css::awt::VclWindowPeerAttribute::AUTOVSCROLL; } if ( rDesc.WindowAttributes & css::awt::VclWindowPeerAttribute::HSCROLL ) { rDesc.WindowAttributes &= ~css::awt::VclWindowPeerAttribute::HSCROLL; rDesc.WindowAttributes |= css::awt::VclWindowPeerAttribute::AUTOHSCROLL; } } extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * stardiv_Toolkit_UnoControlContainer_get_implementation( css::uno::XComponentContext *, css::uno::Sequence const &) { return cppu::acquire(new UnoControlContainer()); } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */