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Diffstat (limited to 'include/vbahelper/vbacollectionimpl.hxx')
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1 files changed, 354 insertions, 0 deletions
diff --git a/include/vbahelper/vbacollectionimpl.hxx b/include/vbahelper/vbacollectionimpl.hxx new file mode 100644 index 000000000..7b3af3e55 --- /dev/null +++ b/include/vbahelper/vbacollectionimpl.hxx @@ -0,0 +1,354 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_VBAHELPER_VBACOLLECTIONIMPL_HXX +#define INCLUDED_VBAHELPER_VBACOLLECTIONIMPL_HXX + +#include <exception> +#include <vector> + +#include <com/sun/star/container/NoSuchElementException.hpp> +#include <com/sun/star/container/XEnumeration.hpp> +#include <com/sun/star/lang/IndexOutOfBoundsException.hpp> +#include <com/sun/star/lang/WrappedTargetException.hpp> +#include <com/sun/star/uno/Any.hxx> +#include <com/sun/star/uno/Reference.hxx> +#include <com/sun/star/uno/RuntimeException.hpp> +#include <com/sun/star/uno/Sequence.hxx> +#include <com/sun/star/uno/Type.hxx> +#include <com/sun/star/uno/TypeClass.hpp> +#include <cppu/unotype.hxx> +#include <cppuhelper/implbase.hxx> +#include <cppuhelper/weakref.hxx> +#include <ooo/vba/XCollection.hpp> +#include <com/sun/star/container/XIndexAccess.hpp> +#include <com/sun/star/container/XNameAccess.hpp> +#include <com/sun/star/container/XNamed.hpp> +#include <rtl/ustring.hxx> +#include <sal/types.h> +#include <vbahelper/vbadllapi.h> +#include <vbahelper/vbahelper.hxx> +#include <vbahelper/vbahelperinterface.hxx> + +namespace com::sun::star { + namespace container { class XEnumerationAccess; } + namespace uno { class XComponentContext; } +} + +namespace ooo::vba { + class XHelperInterface; +} + +typedef ::cppu::WeakImplHelper< css::container::XEnumeration > EnumerationHelper_BASE; + + +/** A wrapper that holds a com.sun.star.container.XIndexAccess and provides a + com.sun.star.container.XEnumeration. + + Can be used to provide an enumeration from an index container that contains + completely constructed/initialized VBA implementation objects. CANNOT be + used to provide an enumeration from an index container with other objects + (e.g. UNO objects) where construction of the VBA objects is needed first. + */ +class VBAHELPER_DLLPUBLIC SimpleIndexAccessToEnumeration final : public EnumerationHelper_BASE +{ +public: + /// @throws css::uno::RuntimeException + explicit SimpleIndexAccessToEnumeration( + const css::uno::Reference< css::container::XIndexAccess >& rxIndexAccess ) : + mxIndexAccess( rxIndexAccess ), mnIndex( 0 ) {} + + virtual sal_Bool SAL_CALL hasMoreElements() override + { + return mnIndex < mxIndexAccess->getCount(); + } + + virtual css::uno::Any SAL_CALL nextElement() override + { + if( !hasMoreElements() ) + throw css::container::NoSuchElementException(); + return mxIndexAccess->getByIndex( mnIndex++ ); + } + +private: + css::uno::Reference< css::container::XIndexAccess > mxIndexAccess; + sal_Int32 mnIndex; +}; + + +/** A wrapper that holds a com.sun.star.container.XEnumeration or a + com.sun.star.container.XIndexAccess and provides an enumeration of VBA objects. + + The method createCollectionObject() needs to be implemented by the derived + class. This class can be used to convert an enumeration or an index container + containing UNO objects to an enumeration providing the related VBA objects. + */ +class VBAHELPER_DLLPUBLIC SimpleEnumerationBase : public EnumerationHelper_BASE +{ +public: + /// @throws css::uno::RuntimeException + explicit SimpleEnumerationBase( + const css::uno::Reference< css::container::XIndexAccess >& rxIndexAccess ) : + mxEnumeration( new SimpleIndexAccessToEnumeration( rxIndexAccess ) ) {} + + virtual sal_Bool SAL_CALL hasMoreElements() override + { + return mxEnumeration->hasMoreElements(); + } + + virtual css::uno::Any SAL_CALL nextElement() override + { + return createCollectionObject( mxEnumeration->nextElement() ); + } + + /** Derived classes implement creation of a VBA implementation object from + the passed container element. */ + virtual css::uno::Any createCollectionObject( const css::uno::Any& rSource ) = 0; + +private: + css::uno::Reference< css::container::XEnumeration > mxEnumeration; +}; + + +// deprecated, use SimpleEnumerationBase instead! +class VBAHELPER_DLLPUBLIC EnumerationHelperImpl : public EnumerationHelper_BASE +{ +protected: + css::uno::WeakReference< ov::XHelperInterface > m_xParent; + css::uno::Reference< css::uno::XComponentContext > m_xContext; + css::uno::Reference< css::container::XEnumeration > m_xEnumeration; +public: + /// @throws css::uno::RuntimeException + EnumerationHelperImpl( const css::uno::Reference< ov::XHelperInterface >& xParent, const css::uno::Reference< css::uno::XComponentContext >& xContext, const css::uno::Reference< css::container::XEnumeration >& xEnumeration ) : m_xParent( xParent ), m_xContext( xContext ), m_xEnumeration( xEnumeration ) { } + virtual sal_Bool SAL_CALL hasMoreElements( ) override { return m_xEnumeration->hasMoreElements(); } +}; + +// a wrapper class for a providing a XIndexAccess, XNameAccess, XEnumerationAccess impl based on providing a vector of interfaces +// only requirement is the object needs to implement XName + + +template< typename OneIfc > +class XNamedObjectCollectionHelper final : public ::cppu::WeakImplHelper< css::container::XNameAccess, + css::container::XIndexAccess, + css::container::XEnumerationAccess > +{ +public: +typedef std::vector< css::uno::Reference< OneIfc > > XNamedVec; +private: + + class XNamedEnumerationHelper final : public EnumerationHelper_BASE + { + XNamedVec mXNamedVec; + typename XNamedVec::iterator mIt; + public: + XNamedEnumerationHelper( const XNamedVec& sMap ) : mXNamedVec( sMap ), mIt( mXNamedVec.begin() ) {} + + virtual sal_Bool SAL_CALL hasMoreElements( ) override + { + return ( mIt != mXNamedVec.end() ); + } + + virtual css::uno::Any SAL_CALL nextElement( ) override + { + if ( hasMoreElements() ) + return css::uno::Any( *mIt++ ); + throw css::container::NoSuchElementException(); + } + }; + + XNamedVec mXNamedVec; + typename XNamedVec::iterator cachePos; +public: + XNamedObjectCollectionHelper( const XNamedVec& sMap ) : mXNamedVec( sMap ), cachePos(mXNamedVec.begin()) {} + // XElementAccess + virtual css::uno::Type SAL_CALL getElementType( ) override { return cppu::UnoType< OneIfc >::get(); } + virtual sal_Bool SAL_CALL hasElements( ) override { return ( mXNamedVec.size() > 0 ); } + // XNameAccess + virtual css::uno::Any SAL_CALL getByName( const OUString& aName ) override + { + if ( !hasByName(aName) ) + throw css::container::NoSuchElementException(); + return css::uno::Any( *cachePos ); + } + virtual css::uno::Sequence< OUString > SAL_CALL getElementNames( ) override + { + css::uno::Sequence< OUString > sNames( mXNamedVec.size() ); + OUString* pString = sNames.getArray(); + typename XNamedVec::iterator it = mXNamedVec.begin(); + typename XNamedVec::iterator it_end = mXNamedVec.end(); + + for ( ; it != it_end; ++it, ++pString ) + { + css::uno::Reference< css::container::XNamed > xName( *it, css::uno::UNO_QUERY_THROW ); + *pString = xName->getName(); + } + return sNames; + } + virtual sal_Bool SAL_CALL hasByName( const OUString& aName ) override + { + cachePos = mXNamedVec.begin(); + typename XNamedVec::iterator it_end = mXNamedVec.end(); + for ( ; cachePos != it_end; ++cachePos ) + { + css::uno::Reference< css::container::XNamed > xName( *cachePos, css::uno::UNO_QUERY_THROW ); + if ( aName == xName->getName() ) + break; + } + return ( cachePos != it_end ); + } + + // XElementAccess + virtual ::sal_Int32 SAL_CALL getCount( ) override { return mXNamedVec.size(); } + virtual css::uno::Any SAL_CALL getByIndex( ::sal_Int32 Index ) override + { + if ( Index < 0 || Index >= getCount() ) + throw css::lang::IndexOutOfBoundsException(); + + return css::uno::Any( mXNamedVec[ Index ] ); + + } + // XEnumerationAccess + virtual css::uno::Reference< css::container::XEnumeration > SAL_CALL createEnumeration( ) override + { + return new XNamedEnumerationHelper( mXNamedVec ); + } +}; + +// including a HelperInterface implementation +template< typename... Ifc > +class SAL_DLLPUBLIC_RTTI ScVbaCollectionBase : public InheritedHelperInterfaceImpl< Ifc... > +{ +typedef InheritedHelperInterfaceImpl< Ifc... > BaseColBase; +protected: + css::uno::Reference< css::container::XIndexAccess > m_xIndexAccess; + css::uno::Reference< css::container::XNameAccess > m_xNameAccess; + bool mbIgnoreCase; + + /// @throws css::uno::RuntimeException + virtual css::uno::Any getItemByStringIndex( const OUString& sIndex ) + { + if ( !m_xNameAccess.is() ) + throw css::uno::RuntimeException("ScVbaCollectionBase string index access not supported by this object" ); + + if( mbIgnoreCase ) + { + const css::uno::Sequence< OUString > sElementNames = m_xNameAccess->getElementNames(); + for( const OUString& rName : sElementNames ) + { + if( rName.equalsIgnoreAsciiCase( sIndex ) ) + { + return createCollectionObject( m_xNameAccess->getByName( rName ) ); + } + } + } + return createCollectionObject( m_xNameAccess->getByName( sIndex ) ); + } + + /// @throws css::uno::RuntimeException + /// @throws css::lang::IndexOutOfBoundsException + virtual css::uno::Any getItemByIntIndex( const sal_Int32 nIndex ) + { + if ( !m_xIndexAccess.is() ) + throw css::uno::RuntimeException("ScVbaCollectionBase numeric index access not supported by this object" ); + if ( nIndex <= 0 ) + { + throw css::lang::IndexOutOfBoundsException( + "index is 0 or negative" ); + } + // need to adjust for vba index ( for which first element is 1 ) + return createCollectionObject( m_xIndexAccess->getByIndex( nIndex - 1 ) ); + } + + void UpdateCollectionIndex( const css::uno::Reference< css::container::XIndexAccess >& xIndexAccess ) + { + css::uno::Reference< css::container::XNameAccess > xNameAccess( xIndexAccess, css::uno::UNO_QUERY_THROW ); + m_xIndexAccess = xIndexAccess; + m_xNameAccess = xNameAccess; + } + +public: + ScVbaCollectionBase( const css::uno::Reference< ov::XHelperInterface >& xParent, const css::uno::Reference< css::uno::XComponentContext >& xContext, const css::uno::Reference< css::container::XIndexAccess >& xIndexAccess, bool bIgnoreCase = false ) : BaseColBase( xParent, xContext ), m_xIndexAccess( xIndexAccess ), mbIgnoreCase( bIgnoreCase ) { m_xNameAccess.set(m_xIndexAccess, css::uno::UNO_QUERY); } + + //XCollection + virtual ::sal_Int32 SAL_CALL getCount() override + { + return m_xIndexAccess->getCount(); + } + + virtual css::uno::Any SAL_CALL Item(const css::uno::Any& Index1, const css::uno::Any& /*not processed in this base class*/) override + { + if ( Index1.getValueTypeClass() != css::uno::TypeClass_STRING ) + { + sal_Int32 nIndex = 0; + + if ( !( Index1 >>= nIndex ) ) + { + throw css::lang::IndexOutOfBoundsException( "Couldn't convert index to Int32" ); + } + return getItemByIntIndex( nIndex ); + } + OUString aStringSheet; + + Index1 >>= aStringSheet; + return getItemByStringIndex( aStringSheet ); + } + + // XDefaultMethod + OUString SAL_CALL getDefaultMethodName( ) override + { + return "Item"; + } + // XEnumerationAccess + virtual css::uno::Reference< css::container::XEnumeration > SAL_CALL createEnumeration() override = 0; + + // XElementAccess + virtual css::uno::Type SAL_CALL getElementType() override = 0; + // XElementAccess + virtual sal_Bool SAL_CALL hasElements() override + { + return ( m_xIndexAccess->getCount() > 0 ); + } + virtual css::uno::Any createCollectionObject( const css::uno::Any& aSource ) = 0; + +}; + +typedef ScVbaCollectionBase< ::cppu::WeakImplHelper<ov::XCollection> > CollImplBase; +// compatible with the old collections ( pre XHelperInterface base class ) ( some internal objects still use this ) +class VBAHELPER_DLLPUBLIC ScVbaCollectionBaseImpl : public CollImplBase +{ +public: + /// @throws css::uno::RuntimeException + ScVbaCollectionBaseImpl( const css::uno::Reference< ov::XHelperInterface > & xParent, const css::uno::Reference< css::uno::XComponentContext >& xContext, const css::uno::Reference< css::container::XIndexAccess >& xIndexAccess ) : CollImplBase( xParent, xContext, xIndexAccess){} + +}; + +template < typename... Ifc > // where Ifc must implement XCollectionTest +class SAL_DLLPUBLIC_RTTI CollTestImplHelper : public ScVbaCollectionBase< ::cppu::WeakImplHelper< Ifc... > > +{ +typedef ScVbaCollectionBase< ::cppu::WeakImplHelper< Ifc... > > ImplBase; + +public: + /// @throws css::uno::RuntimeException + CollTestImplHelper( const css::uno::Reference< ov::XHelperInterface >& xParent, const css::uno::Reference< css::uno::XComponentContext >& xContext, const css::uno::Reference< css::container::XIndexAccess >& xIndexAccess, bool bIgnoreCase = false ) : ImplBase( xParent, xContext, xIndexAccess, bIgnoreCase ) {} +}; + + +#endif //SC_VBA_COLLECTION_IMPL_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |