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Diffstat (limited to 'slideshow/source/engine/eventmultiplexer.cxx')
| -rw-r--r-- | slideshow/source/engine/eventmultiplexer.cxx | 1242 |
1 files changed, 1242 insertions, 0 deletions
diff --git a/slideshow/source/engine/eventmultiplexer.cxx b/slideshow/source/engine/eventmultiplexer.cxx new file mode 100644 index 000000000..2b53073c7 --- /dev/null +++ b/slideshow/source/engine/eventmultiplexer.cxx @@ -0,0 +1,1242 @@ +/* -*- 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 <tools/diagnose_ex.h> + +#include <rtl/ref.hxx> +#include <cppuhelper/compbase.hxx> +#include <cppuhelper/basemutex.hxx> + +#include <com/sun/star/awt/XMouseListener.hpp> +#include <com/sun/star/awt/XMouseMotionListener.hpp> +#include <com/sun/star/presentation/XSlideShowView.hpp> + +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/numeric/ftools.hxx> +#include <basegfx/point/b2dpoint.hxx> + +#include <eventqueue.hxx> +#include <eventmultiplexer.hxx> +#include <listenercontainer.hxx> +#include <delayevent.hxx> +#include <unoview.hxx> +#include <unoviewcontainer.hxx> + +#include <functional> +#include <memory> +#include <algorithm> +#include <type_traits> +#include <utility> +#include <vector> + +using namespace ::com::sun::star; + +namespace +{ + // add operator== for weak_ptr, so we can use std::find over lists of them + struct ViewEventHandlerWeakPtrWrapper final { + slideshow::internal::ViewEventHandlerWeakPtr ptr; + + ViewEventHandlerWeakPtrWrapper(slideshow::internal::ViewEventHandlerWeakPtr thePtr): + ptr(std::move(thePtr)) {} + + bool operator ==(ViewEventHandlerWeakPtrWrapper const & other) const + { return ptr.lock().get() == other.ptr.lock().get(); } + }; +} + +// Needed by ImplViewHandlers; see the ListenerOperations<std::weak_ptr<ListenerTargetT>> partial +// specialization in slideshow/source/inc/listenercontainer.hxx: +template<> +struct slideshow::internal::ListenerOperations<ViewEventHandlerWeakPtrWrapper> +{ + template< typename ContainerT, + typename FuncT > + static bool notifySingleListener( ContainerT& rContainer, + FuncT func ) + { + for( const auto& rCurr : rContainer ) + { + std::shared_ptr<ViewEventHandler> pListener( rCurr.ptr.lock() ); + + if( pListener && func(pListener) ) + return true; + } + + return false; + } + + template< typename ContainerT, + typename FuncT > + static bool notifyAllListeners( ContainerT& rContainer, + FuncT func ) + { + bool bRet(false); + for( const auto& rCurr : rContainer ) + { + std::shared_ptr<ViewEventHandler> pListener( rCurr.ptr.lock() ); + + if( pListener.get() && + FunctionApply<typename ::std::invoke_result<FuncT, std::shared_ptr<ViewEventHandler> const&>::type, + std::shared_ptr<ViewEventHandler> >::apply(func,pListener) ) + { + bRet = true; + } + } + + return bRet; + } + template< typename ContainerT > + static void pruneListeners( ContainerT& rContainer, + size_t nSizeThreshold ) + { + if( rContainer.size() <= nSizeThreshold ) + return; + + ContainerT aAliveListeners; + aAliveListeners.reserve(rContainer.size()); + + for( const auto& rCurr : rContainer ) + { + if( !rCurr.ptr.expired() ) + aAliveListeners.push_back( rCurr ); + } + + std::swap( rContainer, aAliveListeners ); + } +}; + +namespace slideshow::internal { + +namespace { + +template <typename HandlerT> +class PrioritizedHandlerEntry +{ + typedef std::shared_ptr<HandlerT> HandlerSharedPtrT; + HandlerSharedPtrT mpHandler; + double mnPrio; + +public: + PrioritizedHandlerEntry( HandlerSharedPtrT const& pHandler, + double nPrio ) : + mpHandler(pHandler), + mnPrio(nPrio) + {} + + HandlerSharedPtrT const& getHandler() const { return mpHandler; } + + /// To sort according to priority + bool operator<( PrioritizedHandlerEntry const& rRHS ) const + { + // reversed order - high prioritized entries + // should be at the beginning of the queue + return mnPrio > rRHS.mnPrio; + } + + /// To permit std::remove in removeHandler template + bool operator==( PrioritizedHandlerEntry const& rRHS ) const + { + // ignore prio, for removal, only the handler ptr matters + return mpHandler == rRHS.mpHandler; + } +}; + +} + +typedef cppu::WeakComponentImplHelper< + awt::XMouseListener, + awt::XMouseMotionListener > Listener_UnoBase; + +namespace { + +/** Listener class, to decouple UNO lifetime from EventMultiplexer + + This class gets registered as the XMouse(Motion)Listener on the + XSlideViews, and passes on the events to the EventMultiplexer (via + EventQueue indirection, to force the events into the main thread) + */ +class EventMultiplexerListener : private cppu::BaseMutex, + public Listener_UnoBase +{ +public: + EventMultiplexerListener( EventQueue& rEventQueue, + EventMultiplexerImpl& rEventMultiplexer ) : + Listener_UnoBase( m_aMutex ), + mpEventQueue( &rEventQueue ), + mpEventMultiplexer( &rEventMultiplexer ) + { + } + + EventMultiplexerListener( const EventMultiplexerListener& ) = delete; + EventMultiplexerListener& operator=( const EventMultiplexerListener& ) = delete; + + // WeakComponentImplHelperBase::disposing + virtual void SAL_CALL disposing() override; + +private: + virtual void SAL_CALL disposing( const lang::EventObject& Source ) override; + + // XMouseListener implementation + virtual void SAL_CALL mousePressed( const awt::MouseEvent& e ) override; + virtual void SAL_CALL mouseReleased( const awt::MouseEvent& e ) override; + virtual void SAL_CALL mouseEntered( const awt::MouseEvent& e ) override; + virtual void SAL_CALL mouseExited( const awt::MouseEvent& e ) override; + + // XMouseMotionListener implementation + virtual void SAL_CALL mouseDragged( const awt::MouseEvent& e ) override; + virtual void SAL_CALL mouseMoved( const awt::MouseEvent& e ) override; + + + EventQueue* mpEventQueue; + EventMultiplexerImpl* mpEventMultiplexer; +}; + +} + +struct EventMultiplexerImpl +{ + EventMultiplexerImpl( EventQueue& rEventQueue, + UnoViewContainer const& rViewContainer ) : + mrEventQueue(rEventQueue), + mrViewContainer(rViewContainer), + mxListener( new EventMultiplexerListener(rEventQueue, + *this) ), + maNextEffectHandlers(), + maSlideStartHandlers(), + maSlideEndHandlers(), + maAnimationStartHandlers(), + maAnimationEndHandlers(), + maSlideAnimationsEndHandlers(), + maAudioStoppedHandlers(), + maCommandStopAudioHandlers(), + maPauseHandlers(), + maViewHandlers(), + maViewRepaintHandlers(), + maShapeListenerHandlers(), + maUserPaintEventHandlers(), + maMouseClickHandlers(), + maMouseDoubleClickHandlers(), + maMouseMoveHandlers(), + maHyperlinkHandlers(), + mnTimeout(0.0), + mpTickEvent(), + mbIsAutoMode(false) + {} + + ~EventMultiplexerImpl() + { + if( mxListener.is() ) + mxListener->dispose(); + } + + /// Remove all handlers + void clear(); + + // actual handler callbacks (get called from the UNO interface + // listeners via event queue) + void mousePressed( const awt::MouseEvent& e ); + void mouseReleased( const awt::MouseEvent& e ); + void mouseDragged( const awt::MouseEvent& e ); + void mouseMoved( const awt::MouseEvent& e ); + + bool isMouseListenerRegistered() const; + + typedef ThreadUnsafeListenerContainer< + PrioritizedHandlerEntry<EventHandler>, + std::vector< + PrioritizedHandlerEntry<EventHandler> > > ImplNextEffectHandlers; + typedef PrioritizedHandlerEntry<MouseEventHandler> ImplMouseHandlerEntry; + typedef ThreadUnsafeListenerContainer< + ImplMouseHandlerEntry, + std::vector<ImplMouseHandlerEntry> > ImplMouseHandlers; + typedef ThreadUnsafeListenerContainer< + EventHandlerSharedPtr, + std::vector<EventHandlerSharedPtr> > ImplEventHandlers; + typedef ThreadUnsafeListenerContainer< + AnimationEventHandlerSharedPtr, + std::vector<AnimationEventHandlerSharedPtr> > ImplAnimationHandlers; + typedef ThreadUnsafeListenerContainer< + PauseEventHandlerSharedPtr, + std::vector<PauseEventHandlerSharedPtr> > ImplPauseHandlers; + typedef ThreadUnsafeListenerContainer< + ViewEventHandlerWeakPtrWrapper, + std::vector<ViewEventHandlerWeakPtrWrapper> > ImplViewHandlers; + typedef ThreadUnsafeListenerContainer< + ViewRepaintHandlerSharedPtr, + std::vector<ViewRepaintHandlerSharedPtr> > ImplRepaintHandlers; + typedef ThreadUnsafeListenerContainer< + ShapeListenerEventHandlerSharedPtr, + std::vector<ShapeListenerEventHandlerSharedPtr> > ImplShapeListenerHandlers; + typedef ThreadUnsafeListenerContainer< + UserPaintEventHandlerSharedPtr, + std::vector<UserPaintEventHandlerSharedPtr> > ImplUserPaintEventHandlers; + typedef ThreadUnsafeListenerContainer< + PrioritizedHandlerEntry<HyperlinkHandler>, + std::vector<PrioritizedHandlerEntry<HyperlinkHandler> > > ImplHyperLinkHandlers; + + template <typename XSlideShowViewFunc> + void forEachView( XSlideShowViewFunc pViewMethod ); + + UnoViewSharedPtr findUnoView(const uno::Reference< + presentation::XSlideShowView>& xView) const; + + template< typename RegisterFunction > + void addMouseHandler( ImplMouseHandlers& rHandlerContainer, + const MouseEventHandlerSharedPtr& rHandler, + double nPriority, + RegisterFunction pRegisterListener ); + + static bool notifyAllAnimationHandlers( ImplAnimationHandlers const& rContainer, + AnimationNodeSharedPtr const& rNode ); + + bool notifyMouseHandlers( + const ImplMouseHandlers& rQueue, + bool (MouseEventHandler::*pHandlerMethod)( + const awt::MouseEvent& ), + const awt::MouseEvent& e ); + + bool notifyNextEffect(); + + /// Called for automatic nextEffect + void tick(); + + /// Schedules a tick event + void scheduleTick(); + + /// Schedules tick events, if mbIsAutoMode is true + void handleTicks(); + + + EventQueue& mrEventQueue; + UnoViewContainer const& mrViewContainer; + ::rtl::Reference< + EventMultiplexerListener> mxListener; + + ImplNextEffectHandlers maNextEffectHandlers; + ImplEventHandlers maSlideStartHandlers; + ImplEventHandlers maSlideEndHandlers; + ImplAnimationHandlers maAnimationStartHandlers; + ImplAnimationHandlers maAnimationEndHandlers; + ImplEventHandlers maSlideAnimationsEndHandlers; + ImplAnimationHandlers maAudioStoppedHandlers; + ImplAnimationHandlers maCommandStopAudioHandlers; + ImplPauseHandlers maPauseHandlers; + ImplViewHandlers maViewHandlers; + ImplRepaintHandlers maViewRepaintHandlers; + ImplShapeListenerHandlers maShapeListenerHandlers; + ImplUserPaintEventHandlers maUserPaintEventHandlers; + ImplMouseHandlers maMouseClickHandlers; + ImplMouseHandlers maMouseDoubleClickHandlers; + ImplMouseHandlers maMouseMoveHandlers; + ImplHyperLinkHandlers maHyperlinkHandlers; + + /// automatic next effect mode timeout + double mnTimeout; + + /** Holds ptr to optional tick event weakly + + When event queue is cleansed, the next + setAutomaticMode(true) call is then able to + regenerate the event. + */ + ::std::weak_ptr< Event > mpTickEvent; + bool mbIsAutoMode; +}; + + +void SAL_CALL EventMultiplexerListener::disposing() +{ + osl::MutexGuard const guard( m_aMutex ); + mpEventQueue = nullptr; + mpEventMultiplexer = nullptr; +} + +void SAL_CALL EventMultiplexerListener::disposing( + const lang::EventObject& /*rSource*/ ) +{ + // there's no real point in acting on this message - after all, + // the event sources are the XSlideShowViews, which must be + // explicitly removed from the slideshow via + // XSlideShow::removeView(). thus, if a XSlideShowView has + // properly removed itself from the slideshow, it will not be + // found here. and if it hasn't, there'll be other references at + // other places within the slideshow, anyway... +} + +void SAL_CALL EventMultiplexerListener::mousePressed( + const awt::MouseEvent& e ) +{ + osl::MutexGuard const guard( m_aMutex ); + + // notify mouse press. Don't call handlers directly, this + // might not be the main thread! + if( mpEventQueue ) + mpEventQueue->addEvent( + makeEvent( std::bind( &EventMultiplexerImpl::mousePressed, + mpEventMultiplexer, + e ), + "EventMultiplexerImpl::mousePressed") ); +} + +void SAL_CALL EventMultiplexerListener::mouseReleased( + const awt::MouseEvent& e ) +{ + osl::MutexGuard const guard( m_aMutex ); + + // notify mouse release. Don't call handlers directly, + // this might not be the main thread! + if( mpEventQueue ) + mpEventQueue->addEvent( + makeEvent( std::bind( &EventMultiplexerImpl::mouseReleased, + mpEventMultiplexer, + e ), + "EventMultiplexerImpl::mouseReleased") ); +} + +void SAL_CALL EventMultiplexerListener::mouseEntered( + const awt::MouseEvent& /*e*/ ) +{ + // not used here +} + +void SAL_CALL EventMultiplexerListener::mouseExited( + const awt::MouseEvent& /*e*/ ) +{ + // not used here +} + +// XMouseMotionListener implementation +void SAL_CALL EventMultiplexerListener::mouseDragged( + const awt::MouseEvent& e ) +{ + osl::MutexGuard const guard( m_aMutex ); + + // notify mouse drag. Don't call handlers directly, this + // might not be the main thread! + if( mpEventQueue ) + mpEventQueue->addEvent( + makeEvent( std::bind( &EventMultiplexerImpl::mouseDragged, + mpEventMultiplexer, + e ), + "EventMultiplexerImpl::mouseDragged") ); +} + +void SAL_CALL EventMultiplexerListener::mouseMoved( + const awt::MouseEvent& e ) +{ + osl::MutexGuard const guard( m_aMutex ); + + // notify mouse move. Don't call handlers directly, this + // might not be the main thread! + if( mpEventQueue ) + mpEventQueue->addEvent( + makeEvent( std::bind( &EventMultiplexerImpl::mouseMoved, + mpEventMultiplexer, + e ), + "EventMultiplexerImpl::mouseMoved") ); +} + + +bool EventMultiplexerImpl::notifyAllAnimationHandlers( ImplAnimationHandlers const& rContainer, + AnimationNodeSharedPtr const& rNode ) +{ + return rContainer.applyAll( + [&rNode]( const AnimationEventHandlerSharedPtr& pEventHandler ) + { return pEventHandler->handleAnimationEvent( rNode ); } ); +} + +template <typename XSlideShowViewFunc> +void EventMultiplexerImpl::forEachView( XSlideShowViewFunc pViewMethod ) +{ + if( !pViewMethod ) + return; + + // (un)register mouse listener on all views + for( UnoViewVector::const_iterator aIter( mrViewContainer.begin() ), + aEnd( mrViewContainer.end() ); aIter != aEnd; ++aIter ) + { + uno::Reference<presentation::XSlideShowView> xView ((*aIter)->getUnoView()); + if (xView.is()) + { + (xView.get()->*pViewMethod)( mxListener.get() ); + } + else + { + OSL_ASSERT(xView.is()); + } + } +} + +UnoViewSharedPtr EventMultiplexerImpl::findUnoView( + const uno::Reference<presentation::XSlideShowView>& xView) const +{ + // find view from which the change originated + UnoViewVector::const_iterator aIter; + const UnoViewVector::const_iterator aEnd ( mrViewContainer.end() ); + if( (aIter=std::find_if( mrViewContainer.begin(), + aEnd, + [&xView]( const UnoViewSharedPtr& pView ) + { return xView == pView->getUnoView(); } )) == aEnd ) + { + OSL_FAIL("EventMultiplexer::findUnoView(): unexpected message source" ); + return UnoViewSharedPtr(); + } + + return *aIter; +} + +template< typename RegisterFunction > +void EventMultiplexerImpl::addMouseHandler( + ImplMouseHandlers& rHandlerContainer, + const MouseEventHandlerSharedPtr& rHandler, + double nPriority, + RegisterFunction pRegisterListener ) +{ + ENSURE_OR_THROW( + rHandler, + "EventMultiplexer::addMouseHandler(): Invalid handler" ); + + // register mouse listener on all views + forEachView( pRegisterListener ); + + // add into sorted container: + rHandlerContainer.addSorted( + typename ImplMouseHandlers::container_type::value_type( + rHandler, + nPriority )); +} + +bool EventMultiplexerImpl::isMouseListenerRegistered() const +{ + return !(maMouseClickHandlers.isEmpty() && + maMouseDoubleClickHandlers.isEmpty()); +} + +void EventMultiplexerImpl::tick() +{ + if( !mbIsAutoMode ) + return; // this event is just a left-over, ignore + + notifyNextEffect(); + + if( !maNextEffectHandlers.isEmpty() ) + { + // still handlers left, schedule next timeout + // event. Will also set mbIsTickEventOn back to true + scheduleTick(); + } +} + +void EventMultiplexerImpl::scheduleTick() +{ + EventSharedPtr pEvent( + makeDelay( [this] () { this->tick(); }, + mnTimeout, + "EventMultiplexerImpl::tick with delay")); + + // store weak reference to generated event, to notice when + // the event queue gets cleansed (we then have to + // regenerate the tick event!) + mpTickEvent = pEvent; + + // enabled auto mode: simply schedule a timeout event, + // which will eventually call our tick() method + mrEventQueue.addEventForNextRound( pEvent ); +} + +void EventMultiplexerImpl::handleTicks() +{ + if( !mbIsAutoMode ) + return; // nothing to do, don't need no ticks + + EventSharedPtr pTickEvent( mpTickEvent.lock() ); + if( pTickEvent ) + return; // nothing to do, there's already a tick + // pending + + // schedule initial tick (which reschedules itself + // after that, all by itself) + scheduleTick(); +} + + +void EventMultiplexerImpl::clear() +{ + // deregister from all views. + if( isMouseListenerRegistered() ) + { + for( UnoViewVector::const_iterator aIter=mrViewContainer.begin(), + aEnd=mrViewContainer.end(); + aIter!=aEnd; + ++aIter ) + { + if( (*aIter)->getUnoView().is() ) + (*aIter)->getUnoView()->removeMouseListener( mxListener ); + } + } + + if( !maMouseMoveHandlers.isEmpty() ) + { + for( UnoViewVector::const_iterator aIter=mrViewContainer.begin(), + aEnd=mrViewContainer.end(); + aIter!=aEnd; + ++aIter ) + { + if( (*aIter)->getUnoView().is() ) + (*aIter)->getUnoView()->removeMouseMotionListener( mxListener ); + } + } + + // clear all handlers (releases all references) + maNextEffectHandlers.clear(); + maSlideStartHandlers.clear(); + maSlideEndHandlers.clear(); + maAnimationStartHandlers.clear(); + maAnimationEndHandlers.clear(); + maSlideAnimationsEndHandlers.clear(); + maAudioStoppedHandlers.clear(); + maCommandStopAudioHandlers.clear(); + maPauseHandlers.clear(); + maViewHandlers.clear(); + maViewRepaintHandlers.clear(); + maMouseClickHandlers.clear(); + maMouseDoubleClickHandlers.clear(); + maMouseMoveHandlers.clear(); + maHyperlinkHandlers.clear(); + mpTickEvent.reset(); +} + +// XMouseListener implementation +bool EventMultiplexerImpl::notifyMouseHandlers( + const ImplMouseHandlers& rQueue, + bool (MouseEventHandler::*pHandlerMethod)( const awt::MouseEvent& ), + const awt::MouseEvent& e ) +{ + uno::Reference<presentation::XSlideShowView> xView( + e.Source, uno::UNO_QUERY ); + + ENSURE_OR_RETURN_FALSE( xView.is(), "EventMultiplexer::notifyHandlers(): " + "event source is not an XSlideShowView" ); + + // find corresponding view (to map mouse position into user + // coordinate space) + UnoViewVector::const_iterator aIter; + const UnoViewVector::const_iterator aEnd ( mrViewContainer.end() ); + if( (aIter=::std::find_if( + mrViewContainer.begin(), + aEnd, + [&xView]( const UnoViewSharedPtr& pView ) + { return xView == pView->getUnoView(); } )) == aEnd ) + { + ENSURE_OR_RETURN_FALSE( + false, "EventMultiplexer::notifyHandlers(): " + "event source not found under registered views" ); + } + + // convert mouse position to user coordinate space + ::basegfx::B2DPoint aPosition( e.X, e.Y ); + ::basegfx::B2DHomMatrix aMatrix( (*aIter)->getTransformation() ); + if( !aMatrix.invert() ) + ENSURE_OR_THROW( false, "EventMultiplexer::notifyHandlers():" + " view matrix singular" ); + aPosition *= aMatrix; + + awt::MouseEvent aEvent( e ); + aEvent.X = ::basegfx::fround( aPosition.getX() ); + aEvent.Y = ::basegfx::fround( aPosition.getY() ); + + // fire event on handlers, try in order of precedence. If + // one high-priority handler rejects the event + // (i.e. returns false), try next handler. + return rQueue.apply( + [&pHandlerMethod, &aEvent]( const ImplMouseHandlerEntry& rMouseHandler ) + { return ( ( *rMouseHandler.getHandler() ).*pHandlerMethod )( aEvent ); } ); +} + +void EventMultiplexerImpl::mousePressed( const awt::MouseEvent& e ) +{ + // fire double-click events for every second click + sal_Int32 nCurrClickCount = e.ClickCount; + while( nCurrClickCount > 1 && + notifyMouseHandlers( maMouseDoubleClickHandlers, + &MouseEventHandler::handleMousePressed, + e )) + { + nCurrClickCount -= 2; + } + + // fire single-click events for all remaining clicks + while( nCurrClickCount > 0 && + notifyMouseHandlers( maMouseClickHandlers, + &MouseEventHandler::handleMousePressed, + e )) + { + --nCurrClickCount; + } +} + +void EventMultiplexerImpl::mouseReleased( const awt::MouseEvent& e ) +{ + // fire double-click events for every second click + sal_Int32 nCurrClickCount = e.ClickCount; + while( nCurrClickCount > 1 && + notifyMouseHandlers( maMouseDoubleClickHandlers, + &MouseEventHandler::handleMouseReleased, + e )) + { + nCurrClickCount -= 2; + } + + // fire single-click events for all remaining clicks + while( nCurrClickCount > 0 && + notifyMouseHandlers( maMouseClickHandlers, + &MouseEventHandler::handleMouseReleased, + e )) + { + --nCurrClickCount; + } +} + +void EventMultiplexerImpl::mouseDragged( const awt::MouseEvent& e ) +{ + notifyMouseHandlers( maMouseMoveHandlers, + &MouseEventHandler::handleMouseDragged, + e ); +} + +void EventMultiplexerImpl::mouseMoved( const awt::MouseEvent& e ) +{ + notifyMouseHandlers( maMouseMoveHandlers, + &MouseEventHandler::handleMouseMoved, + e ); +} + +bool EventMultiplexerImpl::notifyNextEffect() +{ + // fire event on handlers, try in order of precedence. If one + // high-priority handler rejects the event (i.e. returns false), + // try next handler. + return maNextEffectHandlers.apply( + []( const PrioritizedHandlerEntry< EventHandler >& pHandler ) + { return pHandler.getHandler()->handleEvent(); } ); +} + + +EventMultiplexer::EventMultiplexer( EventQueue& rEventQueue, + UnoViewContainer const& rViewContainer ) : + mpImpl( new EventMultiplexerImpl(rEventQueue, rViewContainer) ) +{ +} + +EventMultiplexer::~EventMultiplexer() +{ + // outline because of EventMultiplexerImpl's incomplete type +} + +void EventMultiplexer::clear() +{ + mpImpl->clear(); +} + +void EventMultiplexer::setAutomaticMode( bool bIsAuto ) +{ + if( bIsAuto == mpImpl->mbIsAutoMode ) + return; // no change, nothing to do + + mpImpl->mbIsAutoMode = bIsAuto; + + mpImpl->handleTicks(); +} + +bool EventMultiplexer::getAutomaticMode() const +{ + return mpImpl->mbIsAutoMode; +} + +void EventMultiplexer::setAutomaticTimeout( double nTimeout ) +{ + mpImpl->mnTimeout = nTimeout; +} + +double EventMultiplexer::getAutomaticTimeout() const +{ + return mpImpl->mnTimeout; +} + +void EventMultiplexer::addNextEffectHandler( + EventHandlerSharedPtr const& rHandler, + double nPriority ) +{ + mpImpl->maNextEffectHandlers.addSorted( + EventMultiplexerImpl::ImplNextEffectHandlers::container_type::value_type( + rHandler, + nPriority) ); + + // Enable tick events, if not done already + mpImpl->handleTicks(); +} + +void EventMultiplexer::removeNextEffectHandler( + const EventHandlerSharedPtr& rHandler ) +{ + mpImpl->maNextEffectHandlers.remove( + EventMultiplexerImpl::ImplNextEffectHandlers::container_type::value_type( + rHandler, + 0.0) ); +} + +void EventMultiplexer::addSlideStartHandler( + const EventHandlerSharedPtr& rHandler ) +{ + mpImpl->maSlideStartHandlers.add( rHandler ); +} + +void EventMultiplexer::removeSlideStartHandler( + const EventHandlerSharedPtr& rHandler ) +{ + mpImpl->maSlideStartHandlers.remove( rHandler ); +} + +void EventMultiplexer::addSlideEndHandler( + const EventHandlerSharedPtr& rHandler ) +{ + mpImpl->maSlideEndHandlers.add( rHandler ); +} + +void EventMultiplexer::removeSlideEndHandler( + const EventHandlerSharedPtr& rHandler ) +{ + mpImpl->maSlideEndHandlers.remove( rHandler ); +} + +void EventMultiplexer::addAnimationStartHandler( + const AnimationEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maAnimationStartHandlers.add( rHandler ); +} + +void EventMultiplexer::removeAnimationStartHandler( + const AnimationEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maAnimationStartHandlers.remove( rHandler ); +} + +void EventMultiplexer::addAnimationEndHandler( + const AnimationEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maAnimationEndHandlers.add( rHandler ); +} + +void EventMultiplexer::removeAnimationEndHandler( + const AnimationEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maAnimationEndHandlers.remove( rHandler ); +} + +void EventMultiplexer::addSlideAnimationsEndHandler( + const EventHandlerSharedPtr& rHandler ) +{ + mpImpl->maSlideAnimationsEndHandlers.add( rHandler ); +} + +void EventMultiplexer::removeSlideAnimationsEndHandler( + const EventHandlerSharedPtr& rHandler ) +{ + mpImpl->maSlideAnimationsEndHandlers.remove( rHandler ); +} + +void EventMultiplexer::addAudioStoppedHandler( + const AnimationEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maAudioStoppedHandlers.add( rHandler ); +} + +void EventMultiplexer::removeAudioStoppedHandler( + const AnimationEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maAudioStoppedHandlers.remove( rHandler ); +} + +void EventMultiplexer::addCommandStopAudioHandler( + const AnimationEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maCommandStopAudioHandlers.add( rHandler ); +} + +void EventMultiplexer::removeCommandStopAudioHandler( + const AnimationEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maCommandStopAudioHandlers.remove( rHandler ); +} + +void EventMultiplexer::addPauseHandler( + const PauseEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maPauseHandlers.add( rHandler ); +} + +void EventMultiplexer::removePauseHandler( + const PauseEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maPauseHandlers.remove( rHandler ); +} + +void EventMultiplexer::addViewHandler( + const ViewEventHandlerWeakPtr& rHandler ) +{ + mpImpl->maViewHandlers.add( rHandler ); +} + +void EventMultiplexer::removeViewHandler( const ViewEventHandlerWeakPtr& rHandler ) +{ + mpImpl->maViewHandlers.remove( rHandler ); +} + +void EventMultiplexer::addViewRepaintHandler( const ViewRepaintHandlerSharedPtr& rHandler ) +{ + mpImpl->maViewRepaintHandlers.add( rHandler ); +} + +void EventMultiplexer::removeViewRepaintHandler( const ViewRepaintHandlerSharedPtr& rHandler ) +{ + mpImpl->maViewRepaintHandlers.remove( rHandler ); +} + +void EventMultiplexer::addShapeListenerHandler( const ShapeListenerEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maShapeListenerHandlers.add( rHandler ); +} + +void EventMultiplexer::removeShapeListenerHandler( const ShapeListenerEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maShapeListenerHandlers.remove( rHandler ); +} + +void EventMultiplexer::addUserPaintHandler( const UserPaintEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maUserPaintEventHandlers.add( rHandler ); +} + +void EventMultiplexer::addClickHandler( + const MouseEventHandlerSharedPtr& rHandler, + double nPriority ) +{ + mpImpl->addMouseHandler( + mpImpl->maMouseClickHandlers, + rHandler, + nPriority, + mpImpl->isMouseListenerRegistered() + ? nullptr + : &presentation::XSlideShowView::addMouseListener ); +} + +void EventMultiplexer::removeClickHandler( + const MouseEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maMouseClickHandlers.remove( + EventMultiplexerImpl::ImplMouseHandlers::container_type::value_type( + rHandler, + 0.0) ); + + if( !mpImpl->isMouseListenerRegistered() ) + mpImpl->forEachView( &presentation::XSlideShowView::removeMouseListener ); +} + +void EventMultiplexer::addDoubleClickHandler( + const MouseEventHandlerSharedPtr& rHandler, + double nPriority ) +{ + mpImpl->addMouseHandler( + mpImpl->maMouseDoubleClickHandlers, + rHandler, + nPriority, + mpImpl->isMouseListenerRegistered() + ? nullptr + : &presentation::XSlideShowView::addMouseListener ); +} + +void EventMultiplexer::removeDoubleClickHandler( + const MouseEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maMouseDoubleClickHandlers.remove( + EventMultiplexerImpl::ImplMouseHandlers::container_type::value_type( + rHandler, + 0.0) ); + + if( !mpImpl->isMouseListenerRegistered() ) + mpImpl->forEachView( &presentation::XSlideShowView::removeMouseListener ); +} + +void EventMultiplexer::addMouseMoveHandler( + const MouseEventHandlerSharedPtr& rHandler, + double nPriority ) +{ + mpImpl->addMouseHandler( + mpImpl->maMouseMoveHandlers, + rHandler, + nPriority, + mpImpl->maMouseMoveHandlers.isEmpty() + ? &presentation::XSlideShowView::addMouseMotionListener + : nullptr ); +} + +void EventMultiplexer::removeMouseMoveHandler( + const MouseEventHandlerSharedPtr& rHandler ) +{ + mpImpl->maMouseMoveHandlers.remove( + EventMultiplexerImpl::ImplMouseHandlers::container_type::value_type( + rHandler, + 0.0) ); + + if( mpImpl->maMouseMoveHandlers.isEmpty() ) + mpImpl->forEachView( + &presentation::XSlideShowView::removeMouseMotionListener ); +} + +void EventMultiplexer::addHyperlinkHandler( const HyperlinkHandlerSharedPtr& rHandler, + double nPriority ) +{ + mpImpl->maHyperlinkHandlers.addSorted( + EventMultiplexerImpl::ImplHyperLinkHandlers::container_type::value_type( + rHandler, + nPriority) ); +} + +void EventMultiplexer::removeHyperlinkHandler( const HyperlinkHandlerSharedPtr& rHandler ) +{ + mpImpl->maHyperlinkHandlers.remove( + EventMultiplexerImpl::ImplHyperLinkHandlers::container_type::value_type( + rHandler, + 0.0) ); +} + +void EventMultiplexer::notifyShapeListenerAdded( + const uno::Reference<drawing::XShape>& xShape ) +{ + mpImpl->maShapeListenerHandlers.applyAll( + [&xShape]( const ShapeListenerEventHandlerSharedPtr& pHandler ) + { return pHandler->listenerAdded( xShape ); } ); +} + +void EventMultiplexer::notifyShapeListenerRemoved( + const uno::Reference<drawing::XShape>& xShape ) +{ + mpImpl->maShapeListenerHandlers.applyAll( + [&xShape]( const ShapeListenerEventHandlerSharedPtr& pHandler ) + { return pHandler->listenerRemoved( xShape ); } ); +} + +void EventMultiplexer::notifyUserPaintColor( RGBColor const& rUserColor ) +{ + mpImpl->maUserPaintEventHandlers.applyAll( + [&rUserColor]( const UserPaintEventHandlerSharedPtr& pHandler ) + { return pHandler->colorChanged( rUserColor ); } ); +} + +void EventMultiplexer::notifyUserPaintStrokeWidth( double rUserStrokeWidth ) +{ + mpImpl->maUserPaintEventHandlers.applyAll( + [&rUserStrokeWidth]( const UserPaintEventHandlerSharedPtr& pHandler ) + { return pHandler->widthChanged( rUserStrokeWidth ); } ); +} + +void EventMultiplexer::notifyUserPaintDisabled() +{ + mpImpl->maUserPaintEventHandlers.applyAll( + std::mem_fn(&UserPaintEventHandler::disable)); +} + +void EventMultiplexer::notifySwitchPenMode(){ + mpImpl->maUserPaintEventHandlers.applyAll( + std::mem_fn(&UserPaintEventHandler::switchPenMode)); +} + +void EventMultiplexer::notifySwitchEraserMode(){ + mpImpl->maUserPaintEventHandlers.applyAll( + std::mem_fn(&UserPaintEventHandler::switchEraserMode)); +} + +//adding erasing all ink features with UserPaintOverlay +void EventMultiplexer::notifyEraseAllInk( bool bEraseAllInk ) +{ + mpImpl->maUserPaintEventHandlers.applyAll( + [&bEraseAllInk]( const UserPaintEventHandlerSharedPtr& pHandler ) + { return pHandler->eraseAllInkChanged( bEraseAllInk ); } ); +} + +//adding erasing features with UserPaintOverlay +void EventMultiplexer::notifyEraseInkWidth( sal_Int32 rEraseInkSize ) +{ + mpImpl->maUserPaintEventHandlers.applyAll( + [&rEraseInkSize]( const UserPaintEventHandlerSharedPtr& pHandler ) + { return pHandler->eraseInkWidthChanged( rEraseInkSize ); } ); +} + +bool EventMultiplexer::notifyNextEffect() +{ + return mpImpl->notifyNextEffect(); +} + +void EventMultiplexer::notifySlideStartEvent() +{ + mpImpl->maSlideStartHandlers.applyAll( + std::mem_fn(&EventHandler::handleEvent) ); +} + +bool EventMultiplexer::notifySlideEndEvent() +{ + return mpImpl->maSlideEndHandlers.applyAll( + std::mem_fn(&EventHandler::handleEvent) ); +} + +bool EventMultiplexer::notifyAnimationStart( + const AnimationNodeSharedPtr& rNode ) +{ + return EventMultiplexerImpl::notifyAllAnimationHandlers( mpImpl->maAnimationStartHandlers, + rNode ); +} + +bool EventMultiplexer::notifyAnimationEnd( + const AnimationNodeSharedPtr& rNode ) +{ + return EventMultiplexerImpl::notifyAllAnimationHandlers( mpImpl->maAnimationEndHandlers, + rNode ); +} + +bool EventMultiplexer::notifySlideAnimationsEnd() +{ + return mpImpl->maSlideAnimationsEndHandlers.applyAll( + std::mem_fn(&EventHandler::handleEvent)); +} + +bool EventMultiplexer::notifyAudioStopped( + const AnimationNodeSharedPtr& rNode ) +{ + return EventMultiplexerImpl::notifyAllAnimationHandlers( + mpImpl->maAudioStoppedHandlers, + rNode ); +} + +bool EventMultiplexer::notifyCommandStopAudio( + const AnimationNodeSharedPtr& rNode ) +{ + return EventMultiplexerImpl::notifyAllAnimationHandlers( + mpImpl->maCommandStopAudioHandlers, + rNode ); +} + +void EventMultiplexer::notifyPauseMode( bool bPauseShow ) +{ + mpImpl->maPauseHandlers.applyAll( + [&bPauseShow]( const PauseEventHandlerSharedPtr& pHandler ) + { return pHandler->handlePause( bPauseShow ); } ); +} + +void EventMultiplexer::notifyViewAdded( const UnoViewSharedPtr& rView ) +{ + ENSURE_OR_THROW( rView, "EventMultiplexer::notifyViewAdded(): Invalid view"); + + // register event listener + uno::Reference<presentation::XSlideShowView> const rUnoView( + rView->getUnoView() ); + + if( mpImpl->isMouseListenerRegistered() ) + rUnoView->addMouseListener( + mpImpl->mxListener ); + + if( !mpImpl->maMouseMoveHandlers.isEmpty() ) + rUnoView->addMouseMotionListener( + mpImpl->mxListener ); + + mpImpl->maViewHandlers.applyAll( + [&rView]( const ViewEventHandlerWeakPtr& pHandler ) + { return pHandler.lock()->viewAdded( rView ); } ); +} + +void EventMultiplexer::notifyViewRemoved( const UnoViewSharedPtr& rView ) +{ + ENSURE_OR_THROW( rView, + "EventMultiplexer::removeView(): Invalid view" ); + + // revoke event listeners + uno::Reference<presentation::XSlideShowView> const rUnoView( + rView->getUnoView() ); + + if( mpImpl->isMouseListenerRegistered() ) + rUnoView->removeMouseListener( + mpImpl->mxListener ); + + if( !mpImpl->maMouseMoveHandlers.isEmpty() ) + rUnoView->removeMouseMotionListener( + mpImpl->mxListener ); + + mpImpl->maViewHandlers.applyAll( + [&rView]( const ViewEventHandlerWeakPtr& pHandler ) + { return pHandler.lock()->viewRemoved( rView ); } ); +} + +void EventMultiplexer::notifyViewChanged( const UnoViewSharedPtr& rView ) +{ + mpImpl->maViewHandlers.applyAll( + [&rView]( const ViewEventHandlerWeakPtr& pHandler ) + { return pHandler.lock()->viewChanged( rView ); } ); +} + +void EventMultiplexer::notifyViewChanged( const uno::Reference<presentation::XSlideShowView>& xView ) +{ + UnoViewSharedPtr pView( mpImpl->findUnoView(xView) ); + + if( !pView ) + return; // view not registered here + + notifyViewChanged( pView ); +} + +void EventMultiplexer::notifyViewsChanged() +{ + mpImpl->maViewHandlers.applyAll( + std::mem_fn( &ViewEventHandler::viewsChanged )); +} + +void EventMultiplexer::notifyViewClobbered( + const uno::Reference<presentation::XSlideShowView>& xView ) +{ + UnoViewSharedPtr pView( mpImpl->findUnoView(xView) ); + + if( !pView ) + return; // view not registered here + + mpImpl->maViewRepaintHandlers.applyAll( + [&pView]( const ViewRepaintHandlerSharedPtr& pHandler ) + { return pHandler->viewClobbered( pView ); } ); +} + +void EventMultiplexer::notifyHyperlinkClicked( + OUString const& hyperLink ) +{ + mpImpl->maHyperlinkHandlers.apply( + [&hyperLink]( const PrioritizedHandlerEntry< HyperlinkHandler >& pHandler ) + { return pHandler.getHandler()->handleHyperlink( hyperLink ); } ); +} + +} // namespace presentation + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |