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| -rw-r--r-- | UnoControls/source/base/multiplexer.cxx | 444 |
1 files changed, 444 insertions, 0 deletions
diff --git a/UnoControls/source/base/multiplexer.cxx b/UnoControls/source/base/multiplexer.cxx new file mode 100644 index 000000000..3b51249d0 --- /dev/null +++ b/UnoControls/source/base/multiplexer.cxx @@ -0,0 +1,444 @@ +/* -*- 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 <multiplexer.hxx> + +#include <osl/diagnose.h> +#include <cppuhelper/queryinterface.hxx> + +#include <com/sun/star/awt/XWindow.hpp> +#include <com/sun/star/awt/XTopWindow.hpp> + +using namespace ::cppu; +using namespace ::osl; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::awt; +using namespace ::com::sun::star::lang; + +namespace unocontrols { + +// macros + +#define MULTIPLEX( INTERFACE, METHOD, EVENTTYP, EVENT ) \ + \ + /* First get all interfaces from container with right type.*/ \ + OInterfaceContainerHelper* pContainer = m_aListenerHolder.getContainer( cppu::UnoType<INTERFACE>::get() ); \ + /* Do the follow only, if elements in container exist.*/ \ + if( pContainer != nullptr ) \ + { \ + OInterfaceIteratorHelper aIterator( *pContainer ); \ + EVENTTYP aLocalEvent = EVENT; \ + /* Remark: The control is the event source not the peer.*/ \ + /* We must change the source of the event. */ \ + aLocalEvent.Source = m_xControl; \ + /* Is the control not destroyed? */ \ + if( aLocalEvent.Source.is() ) \ + { \ + if( aIterator.hasMoreElements() ) \ + { \ + INTERFACE * pListener = static_cast<INTERFACE *>(aIterator.next()); \ + try \ + { \ + pListener->METHOD( aLocalEvent ); \ + } \ + catch(const RuntimeException& ) \ + { \ + /* Ignore all system exceptions from the listener! */ \ + } \ + } \ + } \ + } + +// construct/destruct + +OMRCListenerMultiplexerHelper::OMRCListenerMultiplexerHelper( const Reference< XWindow >& xControl , + const Reference< XWindow >& xPeer ) + : m_xPeer ( xPeer ) + , m_xControl ( xControl ) + , m_aListenerHolder ( m_aMutex ) +{ +} + +OMRCListenerMultiplexerHelper::OMRCListenerMultiplexerHelper( const OMRCListenerMultiplexerHelper& aCopyInstance ) + : XFocusListener() + , XWindowListener() + , XKeyListener() + , XMouseListener() + , XMouseMotionListener() + , XPaintListener() + , XTopWindowListener() + , OWeakObject(aCopyInstance) + , m_aListenerHolder ( m_aMutex ) +{ +} + +OMRCListenerMultiplexerHelper::~OMRCListenerMultiplexerHelper() +{ +} + +// XInterface + +Any SAL_CALL OMRCListenerMultiplexerHelper::queryInterface( const Type& rType ) +{ + // Attention: + // Don't use mutex or guard in this method!!! Is a method of XInterface. + + // Ask for my own supported interfaces ... + // Attention: XTypeProvider and XInterface are supported by OComponentHelper! + Any aReturn ( ::cppu::queryInterface( rType , + static_cast< XWindowListener* > ( this ) , + static_cast< XKeyListener* > ( this ) , + static_cast< XFocusListener* > ( this ) , + static_cast< XMouseListener* > ( this ) , + static_cast< XMouseMotionListener* > ( this ) , + static_cast< XPaintListener* > ( this ) , + static_cast< XTopWindowListener* > ( this ) , + static_cast< XTopWindowListener* > ( this ) + ) + ); + + // If searched interface supported by this class ... + if ( aReturn.hasValue() ) + { + // ... return this information. + return aReturn; + } + else + { + // Else; ... ask baseclass for interfaces! + return OWeakObject::queryInterface( rType ); + } +} + +// XInterface + +void SAL_CALL OMRCListenerMultiplexerHelper::acquire() throw() +{ + // Attention: + // Don't use mutex or guard in this method!!! Is a method of XInterface. + + // Forward to baseclass + OWeakObject::acquire(); +} + +// XInterface + +void SAL_CALL OMRCListenerMultiplexerHelper::release() throw() +{ + // Attention: + // Don't use mutex or guard in this method!!! Is a method of XInterface. + + // Forward to baseclass + OWeakObject::release(); +} + +// container method + +void OMRCListenerMultiplexerHelper::setPeer( const Reference< XWindow >& xPeer ) +{ + MutexGuard aGuard( m_aMutex ); + if( m_xPeer != xPeer ) + { + if( m_xPeer.is() ) + { + // get all types from the listener added to the peer + const Sequence< Type > aContainedTypes = m_aListenerHolder.getContainedTypes(); + // loop over all listener types and remove the listeners from the peer + for( const auto& rContainedType : aContainedTypes ) + impl_unadviseFromPeer( m_xPeer, rContainedType ); + } + m_xPeer = xPeer; + if( m_xPeer.is() ) + { + // get all types from the listener added to the peer + const Sequence< Type > aContainedTypes = m_aListenerHolder.getContainedTypes(); + // loop over all listener types and add the listeners to the peer + for( const auto& rContainedType : aContainedTypes ) + impl_adviseToPeer( m_xPeer, rContainedType ); + } + } +} + +// container method + +void OMRCListenerMultiplexerHelper::disposeAndClear() +{ + EventObject aEvent; + aEvent.Source = m_xControl; + m_aListenerHolder.disposeAndClear( aEvent ); +} + +// container method + +void OMRCListenerMultiplexerHelper::advise( const Type& aType , + const Reference< XInterface >& xListener ) +{ + MutexGuard aGuard( m_aMutex ); + if( m_aListenerHolder.addInterface( aType, xListener ) == 1 ) + { + // the first listener is added + if( m_xPeer.is() ) + { + impl_adviseToPeer( m_xPeer, aType ); + } + } +} + +// container method + +void OMRCListenerMultiplexerHelper::unadvise( const Type& aType , + const Reference< XInterface >& xListener ) +{ + MutexGuard aGuard( m_aMutex ); + if( m_aListenerHolder.removeInterface( aType, xListener ) == 0 ) + { + // the last listener is removed + if ( m_xPeer.is() ) + { + impl_unadviseFromPeer( m_xPeer, aType ); + } + } +} + +// XEventListener + +void SAL_CALL OMRCListenerMultiplexerHelper::disposing( const EventObject& /*aSource*/ ) +{ + MutexGuard aGuard( m_aMutex ); + // peer is disposed, clear the reference + m_xPeer.clear(); +} + +// XFcousListener + +void OMRCListenerMultiplexerHelper::focusGained(const FocusEvent& aEvent ) +{ + MULTIPLEX( XFocusListener, focusGained, FocusEvent, aEvent ) +} + +// XFcousListener + +void OMRCListenerMultiplexerHelper::focusLost(const FocusEvent& aEvent ) +{ + MULTIPLEX( XFocusListener, focusLost, FocusEvent, aEvent ) +} + +// XWindowListener + +void OMRCListenerMultiplexerHelper::windowResized(const WindowEvent& aEvent ) +{ + MULTIPLEX( XWindowListener, windowResized, WindowEvent, aEvent ) +} + +// XWindowListener + +void OMRCListenerMultiplexerHelper::windowMoved(const WindowEvent& aEvent ) +{ + MULTIPLEX( XWindowListener, windowMoved, WindowEvent, aEvent ) +} + +// XWindowListener + +void OMRCListenerMultiplexerHelper::windowShown(const EventObject& aEvent ) +{ + MULTIPLEX( XWindowListener, windowShown, EventObject, aEvent ) +} + +// XWindowListener + +void OMRCListenerMultiplexerHelper::windowHidden(const EventObject& aEvent ) +{ + MULTIPLEX( XWindowListener, windowHidden, EventObject, aEvent ) +} + +// XKeyListener + +void OMRCListenerMultiplexerHelper::keyPressed(const KeyEvent& aEvent) +{ + MULTIPLEX( XKeyListener, keyPressed, KeyEvent, aEvent ) +} + +// XKeyListener + +void OMRCListenerMultiplexerHelper::keyReleased(const KeyEvent& aEvent) +{ + MULTIPLEX( XKeyListener, keyReleased, KeyEvent, aEvent ) +} + +// XMouseListener + +void OMRCListenerMultiplexerHelper::mousePressed(const MouseEvent& aEvent) +{ + MULTIPLEX( XMouseListener, mousePressed, MouseEvent, aEvent ) +} + +// XMouseListener + +void OMRCListenerMultiplexerHelper::mouseReleased(const MouseEvent& aEvent) +{ + MULTIPLEX( XMouseListener, mouseReleased, MouseEvent, aEvent ) +} + +// XMouseListener + +void OMRCListenerMultiplexerHelper::mouseEntered(const MouseEvent& aEvent) +{ + MULTIPLEX( XMouseListener, mouseEntered, MouseEvent, aEvent ) +} + +// XMouseListener + +void OMRCListenerMultiplexerHelper::mouseExited(const MouseEvent& aEvent) +{ + MULTIPLEX( XMouseListener, mouseExited, MouseEvent, aEvent ) +} + +// XMouseMotionListener + +void OMRCListenerMultiplexerHelper::mouseDragged(const MouseEvent& aEvent) +{ + MULTIPLEX( XMouseMotionListener, mouseDragged, MouseEvent, aEvent ) +} + +// XMouseMotionListener + +void OMRCListenerMultiplexerHelper::mouseMoved(const MouseEvent& aEvent) +{ + MULTIPLEX( XMouseMotionListener, mouseMoved, MouseEvent, aEvent ) +} + +// XPaintListener + +void OMRCListenerMultiplexerHelper::windowPaint(const PaintEvent& aEvent) +{ + MULTIPLEX( XPaintListener, windowPaint, PaintEvent, aEvent ) +} + +// XTopWindowListener + +void OMRCListenerMultiplexerHelper::windowOpened(const EventObject& aEvent) +{ + MULTIPLEX( XTopWindowListener, windowOpened, EventObject, aEvent ) +} + +// XTopWindowListener + +void OMRCListenerMultiplexerHelper::windowClosing( const EventObject& aEvent ) +{ + MULTIPLEX( XTopWindowListener, windowClosing, EventObject, aEvent ) +} + +// XTopWindowListener + +void OMRCListenerMultiplexerHelper::windowClosed( const EventObject& aEvent ) +{ + MULTIPLEX( XTopWindowListener, windowClosed, EventObject, aEvent ) +} + +// XTopWindowListener + +void OMRCListenerMultiplexerHelper::windowMinimized( const EventObject& aEvent ) +{ + MULTIPLEX( XTopWindowListener, windowMinimized, EventObject, aEvent ) +} + +// XTopWindowListener + +void OMRCListenerMultiplexerHelper::windowNormalized( const EventObject& aEvent ) +{ + MULTIPLEX( XTopWindowListener, windowNormalized, EventObject, aEvent ) +} + +// XTopWindowListener + +void OMRCListenerMultiplexerHelper::windowActivated( const EventObject& aEvent ) +{ + MULTIPLEX( XTopWindowListener, windowActivated, EventObject, aEvent ) +} + +// XTopWindowListener + +void OMRCListenerMultiplexerHelper::windowDeactivated( const EventObject& aEvent ) +{ + MULTIPLEX( XTopWindowListener, windowDeactivated, EventObject, aEvent ) +} + +// protected method + +void OMRCListenerMultiplexerHelper::impl_adviseToPeer( const Reference< XWindow >& xPeer , + const Type& aType ) +{ + // add a listener to the source (peer) + if( aType == cppu::UnoType<XWindowListener>::get()) + xPeer->addWindowListener( this ); + else if( aType == cppu::UnoType<XKeyListener>::get()) + xPeer->addKeyListener( this ); + else if( aType == cppu::UnoType<XFocusListener>::get()) + xPeer->addFocusListener( this ); + else if( aType == cppu::UnoType<XMouseListener>::get()) + xPeer->addMouseListener( this ); + else if( aType == cppu::UnoType<XMouseMotionListener>::get()) + xPeer->addMouseMotionListener( this ); + else if( aType == cppu::UnoType<XPaintListener>::get()) + xPeer->addPaintListener( this ); + else if( aType == cppu::UnoType<XTopWindowListener>::get()) + { + Reference< XTopWindow > xTop( xPeer, UNO_QUERY ); + if( xTop.is() ) + xTop->addTopWindowListener( this ); + } + else + { + OSL_FAIL( "unknown listener" ); + } +} + +// protected method + +void OMRCListenerMultiplexerHelper::impl_unadviseFromPeer( const Reference< XWindow >& xPeer , + const Type& aType ) +{ + // the last listener is removed, remove the listener from the source (peer) + if( aType == cppu::UnoType<XWindowListener>::get()) + xPeer->removeWindowListener( this ); + else if( aType == cppu::UnoType<XKeyListener>::get()) + xPeer->removeKeyListener( this ); + else if( aType == cppu::UnoType<XFocusListener>::get()) + xPeer->removeFocusListener( this ); + else if( aType == cppu::UnoType<XMouseListener>::get()) + xPeer->removeMouseListener( this ); + else if( aType == cppu::UnoType<XMouseMotionListener>::get()) + xPeer->removeMouseMotionListener( this ); + else if( aType == cppu::UnoType<XPaintListener>::get()) + xPeer->removePaintListener( this ); + else if( aType == cppu::UnoType<XTopWindowListener>::get()) + { + Reference< XTopWindow > xTop( xPeer, UNO_QUERY ); + if( xTop.is() ) + xTop->removeTopWindowListener( this ); + } + else + { + OSL_FAIL( "unknown listener" ); + } +} + +} // namespace unocontrols + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |