diff options
Diffstat (limited to 'sc/source/ui/Accessibility/DrawModelBroadcaster.cxx')
-rw-r--r-- | sc/source/ui/Accessibility/DrawModelBroadcaster.cxx | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/sc/source/ui/Accessibility/DrawModelBroadcaster.cxx b/sc/source/ui/Accessibility/DrawModelBroadcaster.cxx new file mode 100644 index 0000000000..c181656fe1 --- /dev/null +++ b/sc/source/ui/Accessibility/DrawModelBroadcaster.cxx @@ -0,0 +1,107 @@ +/* -*- 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 <DrawModelBroadcaster.hxx> +#include <svx/svdmodel.hxx> +#include <svx/unomod.hxx> +#include <svx/svdobj.hxx> + +using namespace ::com::sun::star; + +ScDrawModelBroadcaster::ScDrawModelBroadcaster( SdrModel *pDrawModel ) : + mpDrawModel( pDrawModel ) +{ + if (mpDrawModel) + StartListening( *mpDrawModel ); +} + +ScDrawModelBroadcaster::~ScDrawModelBroadcaster() +{ + if (mpDrawModel) + EndListening( *mpDrawModel ); +} + +void SAL_CALL ScDrawModelBroadcaster::addEventListener( const uno::Reference< document::XEventListener >& xListener ) +{ + std::unique_lock aGuard(maListenerMutex); + maEventListeners.addInterface( aGuard, xListener ); +} + +void SAL_CALL ScDrawModelBroadcaster::removeEventListener( const uno::Reference< document::XEventListener >& xListener ) +{ + std::unique_lock aGuard(maListenerMutex); + maEventListeners.removeInterface( aGuard, xListener ); +} + +void SAL_CALL ScDrawModelBroadcaster::addShapeEventListener( + const css::uno::Reference< css::drawing::XShape >& xShape, + const uno::Reference< document::XShapeEventListener >& xListener ) +{ + assert(xShape.is() && "no shape?"); + std::scoped_lock aGuard(maListenerMutex); + auto rv = maShapeListeners.emplace(xShape, xListener); + assert(rv.second && "duplicate listener?"); + (void)rv; +} + +void SAL_CALL ScDrawModelBroadcaster::removeShapeEventListener( + const css::uno::Reference< css::drawing::XShape >& xShape, + const uno::Reference< document::XShapeEventListener >& xListener ) +{ + std::scoped_lock aGuard(maListenerMutex); + auto it = maShapeListeners.find(xShape); + if (it != maShapeListeners.end()) + { + assert(it->second == xListener && "removing wrong listener?"); + (void)xListener; + maShapeListeners.erase(it); + } +} + +void ScDrawModelBroadcaster::Notify( SfxBroadcaster&, + const SfxHint& rHint ) +{ + if (rHint.GetId() != SfxHintId::ThisIsAnSdrHint) + return; + const SdrHint* pSdrHint = static_cast<const SdrHint*>(&rHint); + + document::EventObject aEvent; + if( !SvxUnoDrawMSFactory::createEvent( mpDrawModel, pSdrHint, aEvent ) ) + return; + + std::unique_lock aGuard(maListenerMutex); + maEventListeners.forEach(aGuard, + [&aEvent](const css::uno::Reference<document::XEventListener>& xListener) + { + xListener->notifyEvent(aEvent); + } + ); + + // right now, we're only handling the specific event necessary to fix this performance problem + if (pSdrHint->GetKind() == SdrHintKind::ObjectChange) + { + auto pSdrObject = const_cast<SdrObject*>(pSdrHint->GetObject()); + uno::Reference<drawing::XShape> xShape(pSdrObject->getUnoShape(), uno::UNO_QUERY); + auto it = maShapeListeners.find(xShape); + if (it != maShapeListeners.end()) + it->second->notifyShapeEvent(aEvent); + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |