diff options
Diffstat (limited to '')
| -rw-r--r-- | vcl/source/window/dndlistenercontainer.cxx | 487 |
1 files changed, 487 insertions, 0 deletions
diff --git a/vcl/source/window/dndlistenercontainer.cxx b/vcl/source/window/dndlistenercontainer.cxx new file mode 100644 index 000000000..d3147aac5 --- /dev/null +++ b/vcl/source/window/dndlistenercontainer.cxx @@ -0,0 +1,487 @@ +/* -*- 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 <dndlistenercontainer.hxx> + +using namespace ::cppu; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::datatransfer; +using namespace ::com::sun::star::datatransfer::dnd; + +DNDListenerContainer::DNDListenerContainer( sal_Int8 nDefaultActions ) + : WeakComponentImplHelper< XDragGestureRecognizer, XDropTargetDragContext, XDropTargetDropContext, XDropTarget >(m_aMutex) +{ + m_bActive = true; + m_nDefaultActions = nDefaultActions; +} + +DNDListenerContainer::~DNDListenerContainer() +{ +} + +void SAL_CALL DNDListenerContainer::addDragGestureListener( const Reference< XDragGestureListener >& dgl ) +{ + rBHelper.addListener( cppu::UnoType<XDragGestureListener>::get(), dgl ); +} + +void SAL_CALL DNDListenerContainer::removeDragGestureListener( const Reference< XDragGestureListener >& dgl ) +{ + rBHelper.removeListener( cppu::UnoType<XDragGestureListener>::get(), dgl ); +} + +void SAL_CALL DNDListenerContainer::resetRecognizer( ) +{ +} + +void SAL_CALL DNDListenerContainer::addDropTargetListener( const Reference< XDropTargetListener >& dtl ) +{ + rBHelper.addListener( cppu::UnoType<XDropTargetListener>::get(), dtl ); +} + +void SAL_CALL DNDListenerContainer::removeDropTargetListener( const Reference< XDropTargetListener >& dtl ) +{ + rBHelper.removeListener( cppu::UnoType<XDropTargetListener>::get(), dtl ); +} + +sal_Bool SAL_CALL DNDListenerContainer::isActive( ) +{ + return m_bActive; +} + +void SAL_CALL DNDListenerContainer::setActive( sal_Bool active ) +{ + m_bActive = active; +} + +sal_Int8 SAL_CALL DNDListenerContainer::getDefaultActions( ) +{ + return m_nDefaultActions; +} + +void SAL_CALL DNDListenerContainer::setDefaultActions( sal_Int8 actions ) +{ + m_nDefaultActions = actions; +} + +sal_uInt32 DNDListenerContainer::fireDropEvent( const Reference< XDropTargetDropContext >& context, + sal_Int8 dropAction, sal_Int32 locationX, sal_Int32 locationY, sal_Int8 sourceActions, + const Reference< XTransferable >& transferable ) +{ + sal_uInt32 nRet = 0; + + // fire DropTargetDropEvent on all XDropTargetListeners + OInterfaceContainerHelper *pContainer = rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get()); + + if( pContainer && m_bActive ) + { + OInterfaceIteratorHelper aIterator( *pContainer ); + + // remember context to use in own context methods + m_xDropTargetDropContext = context; + + // do not construct the event before you are sure at least one listener is registered + DropTargetDropEvent aEvent( static_cast < XDropTarget * > (this), 0, + static_cast < XDropTargetDropContext * > (this), dropAction, + locationX, locationY, sourceActions, transferable ); + + while (aIterator.hasMoreElements()) + { + // FIXME: this can be simplified as soon as the Iterator has a remove method + Reference< XInterface > xElement( aIterator.next() ); + + try + { + // this may result in a runtime exception + Reference < XDropTargetListener > xListener( xElement, UNO_QUERY ); + + if( xListener.is() ) + { + // fire drop until the first one has accepted + if( m_xDropTargetDropContext.is() ) + xListener->drop( aEvent ); + else + { + DropTargetEvent aDTEvent( static_cast < XDropTarget * > (this), 0 ); + xListener->dragExit( aDTEvent ); + } + + nRet++; + } + } + catch (const RuntimeException&) + { + pContainer->removeInterface( xElement ); + } + } + + // if context still valid, then reject drop + if( m_xDropTargetDropContext.is() ) + { + m_xDropTargetDropContext.clear(); + + try + { + context->rejectDrop(); + } + catch (const RuntimeException&) + { + } + } + } + + return nRet; +} + +sal_uInt32 DNDListenerContainer::fireDragExitEvent() +{ + sal_uInt32 nRet = 0; + + // fire DropTargetDropEvent on all XDropTargetListeners + OInterfaceContainerHelper *pContainer = rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get()); + + if( pContainer && m_bActive ) + { + OInterfaceIteratorHelper aIterator( *pContainer ); + + // do not construct the event before you are sure at least one listener is registered + DropTargetEvent aEvent( static_cast < XDropTarget * > (this), 0 ); + + while (aIterator.hasMoreElements()) + { + // FIXME: this can be simplified as soon as the Iterator has a remove method + Reference< XInterface > xElement( aIterator.next() ); + + try + { + // this may result in a runtime exception + Reference < XDropTargetListener > xListener( xElement, UNO_QUERY ); + + if( xListener.is() ) + { + xListener->dragExit( aEvent ); + nRet++; + } + } + catch (const RuntimeException&) + { + pContainer->removeInterface( xElement ); + } + } + } + + return nRet; +} + +sal_uInt32 DNDListenerContainer::fireDragOverEvent( const Reference< XDropTargetDragContext >& context, + sal_Int8 dropAction, sal_Int32 locationX, sal_Int32 locationY, sal_Int8 sourceActions ) +{ + sal_uInt32 nRet = 0; + + // fire DropTargetDropEvent on all XDropTargetListeners + OInterfaceContainerHelper *pContainer = rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get()); + + if( pContainer && m_bActive ) + { + OInterfaceIteratorHelper aIterator( *pContainer ); + + // remember context to use in own context methods + m_xDropTargetDragContext = context; + + // do not construct the event before you are sure at least one listener is registered + DropTargetDragEvent aEvent( static_cast < XDropTarget * > (this), 0, + static_cast < XDropTargetDragContext * > (this), + dropAction, locationX, locationY, sourceActions ); + + while (aIterator.hasMoreElements()) + { + // FIXME: this can be simplified as soon as the Iterator has a remove method + Reference< XInterface > xElement( aIterator.next() ); + + try + { + // this may result in a runtime exception + Reference < XDropTargetListener > xListener( xElement, UNO_QUERY ); + + if( xListener.is() ) + { + if( m_xDropTargetDragContext.is() ) + xListener->dragOver( aEvent ); + nRet++; + } + } + catch (const RuntimeException&) + { + pContainer->removeInterface( xElement ); + } + } + + // if context still valid, then reject drag + if( m_xDropTargetDragContext.is() ) + { + m_xDropTargetDragContext.clear(); + + try + { + context->rejectDrag(); + } + catch (const RuntimeException&) + { + } + } + } + + return nRet; +} + +sal_uInt32 DNDListenerContainer::fireDragEnterEvent( const Reference< XDropTargetDragContext >& context, + sal_Int8 dropAction, sal_Int32 locationX, sal_Int32 locationY, sal_Int8 sourceActions, + const Sequence< DataFlavor >& dataFlavors ) +{ + sal_uInt32 nRet = 0; + + // fire DropTargetDropEvent on all XDropTargetListeners + OInterfaceContainerHelper *pContainer = rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get()); + + if( pContainer && m_bActive ) + { + OInterfaceIteratorHelper aIterator( *pContainer ); + + // remember context to use in own context methods + m_xDropTargetDragContext = context; + + // do not construct the event before you are sure at least one listener is registered + DropTargetDragEnterEvent aEvent( static_cast < XDropTarget * > (this), 0, + static_cast < XDropTargetDragContext * > (this), + dropAction, locationX, locationY, sourceActions, dataFlavors ); + + while (aIterator.hasMoreElements()) + { + // FIXME: this can be simplified as soon as the Iterator has a remove method + Reference< XInterface > xElement( aIterator.next() ); + + try + { + // this may result in a runtime exception + Reference < XDropTargetListener > xListener( xElement, UNO_QUERY ); + + if( xListener.is() ) + { + if( m_xDropTargetDragContext.is() ) + xListener->dragEnter( aEvent ); + nRet++; + } + } + catch (const RuntimeException&) + { + pContainer->removeInterface( xElement ); + } + } + + // if context still valid, then reject drag + if( m_xDropTargetDragContext.is() ) + { + m_xDropTargetDragContext.clear(); + + try + { + context->rejectDrag(); + } + catch (const RuntimeException&) + { + } + } + } + + return nRet; +} + +sal_uInt32 DNDListenerContainer::fireDropActionChangedEvent( const Reference< XDropTargetDragContext >& context, + sal_Int8 dropAction, sal_Int32 locationX, sal_Int32 locationY, sal_Int8 sourceActions ) +{ + sal_uInt32 nRet = 0; + + // fire DropTargetDropEvent on all XDropTargetListeners + OInterfaceContainerHelper *pContainer = rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get()); + + if( pContainer && m_bActive ) + { + OInterfaceIteratorHelper aIterator( *pContainer ); + + // remember context to use in own context methods + m_xDropTargetDragContext = context; + + // do not construct the event before you are sure at least one listener is registered + DropTargetDragEvent aEvent( static_cast < XDropTarget * > (this), 0, + static_cast < XDropTargetDragContext * > (this), + dropAction, locationX, locationY, sourceActions ); + + while (aIterator.hasMoreElements()) + { + // FIXME: this can be simplified as soon as the Iterator has a remove method + Reference< XInterface > xElement( aIterator.next() ); + + try + { + // this may result in a runtime exception + Reference < XDropTargetListener > xListener( xElement, UNO_QUERY ); + + if( xListener.is() ) + { + if( m_xDropTargetDragContext.is() ) + xListener->dropActionChanged( aEvent ); + nRet++; + } + } + catch (const RuntimeException&) + { + pContainer->removeInterface( xElement ); + } + } + + // if context still valid, then reject drag + if( m_xDropTargetDragContext.is() ) + { + m_xDropTargetDragContext.clear(); + + try + { + context->rejectDrag(); + } + catch (const RuntimeException&) + { + } + } + } + + return nRet; +} + +sal_uInt32 DNDListenerContainer::fireDragGestureEvent( sal_Int8 dragAction, sal_Int32 dragOriginX, + sal_Int32 dragOriginY, const Reference< XDragSource >& dragSource, const Any& triggerEvent ) +{ + sal_uInt32 nRet = 0; + + // fire DropTargetDropEvent on all XDropTargetListeners + OInterfaceContainerHelper *pContainer = rBHelper.getContainer( cppu::UnoType<XDragGestureListener>::get()); + + if( pContainer ) + { + OInterfaceIteratorHelper aIterator( *pContainer ); + + // do not construct the event before you are sure at least one listener is registered + DragGestureEvent aEvent( static_cast < XDragGestureRecognizer * > (this), dragAction, + dragOriginX, dragOriginY, dragSource, triggerEvent ); + + while( aIterator.hasMoreElements() ) + { + // FIXME: this can be simplified as soon as the Iterator has a remove method + Reference< XInterface > xElement( aIterator.next() ); + + try + { + // this may result in a runtime exception + Reference < XDragGestureListener > xListener( xElement, UNO_QUERY ); + + if( xListener.is() ) + { + xListener->dragGestureRecognized( aEvent ); + nRet++; + } + } + catch (const RuntimeException&) + { + pContainer->removeInterface( xElement ); + } + } + } + + return nRet; +} + +void SAL_CALL DNDListenerContainer::acceptDrag( sal_Int8 dragOperation ) +{ + if( m_xDropTargetDragContext.is() ) + { + m_xDropTargetDragContext->acceptDrag( dragOperation ); + m_xDropTargetDragContext.clear(); + } +} + +void SAL_CALL DNDListenerContainer::rejectDrag( ) +{ + // nothing to do here +} + +void SAL_CALL DNDListenerContainer::acceptDrop( sal_Int8 dropOperation ) +{ + if( m_xDropTargetDropContext.is() ) + m_xDropTargetDropContext->acceptDrop( dropOperation ); +} + +void SAL_CALL DNDListenerContainer::rejectDrop( ) +{ + // nothing to do here +} + +void SAL_CALL DNDListenerContainer::dropComplete( sal_Bool success ) +{ + if( m_xDropTargetDropContext.is() ) + { + m_xDropTargetDropContext->dropComplete( success ); + m_xDropTargetDropContext.clear(); + } +} + +/* + * GenericDropTargetDropContext + */ + +GenericDropTargetDropContext::GenericDropTargetDropContext() +{ +} + +void GenericDropTargetDropContext::acceptDrop( sal_Int8 /*dragOperation*/ ) +{ +} + +void GenericDropTargetDropContext::rejectDrop() +{ +} + +void GenericDropTargetDropContext::dropComplete( sal_Bool /*success*/ ) +{ +} + +/* + * GenericDropTargetDragContext + */ + +GenericDropTargetDragContext::GenericDropTargetDragContext() +{ +} + +void GenericDropTargetDragContext::acceptDrag( sal_Int8 /*dragOperation*/ ) +{ +} + +void GenericDropTargetDragContext::rejectDrag() +{ +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |