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Diffstat (limited to 'sd/source/ui/accessibility/AccessibleSlideSorterObject.cxx')
| -rw-r--r-- | sd/source/ui/accessibility/AccessibleSlideSorterObject.cxx | 429 |
1 files changed, 429 insertions, 0 deletions
diff --git a/sd/source/ui/accessibility/AccessibleSlideSorterObject.cxx b/sd/source/ui/accessibility/AccessibleSlideSorterObject.cxx new file mode 100644 index 000000000..13fc60db0 --- /dev/null +++ b/sd/source/ui/accessibility/AccessibleSlideSorterObject.cxx @@ -0,0 +1,429 @@ +/* -*- 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 <AccessibleSlideSorterObject.hxx> + +#include <SlideSorter.hxx> +#include <controller/SlideSorterController.hxx> +#include <controller/SlsPageSelector.hxx> +#include <controller/SlsFocusManager.hxx> +#include <model/SlideSorterModel.hxx> +#include <model/SlsPageDescriptor.hxx> +#include <view/SlideSorterView.hxx> +#include <view/SlsLayouter.hxx> +#include <view/SlsPageObjectLayouter.hxx> +#include <com/sun/star/accessibility/AccessibleRole.hpp> +#include <com/sun/star/accessibility/AccessibleStateType.hpp> +#include <com/sun/star/accessibility/IllegalAccessibleComponentStateException.hpp> +#include <com/sun/star/lang/IndexOutOfBoundsException.hpp> +#include <comphelper/accessibleeventnotifier.hxx> +#include <cppuhelper/supportsservice.hxx> +#include <unotools/accessiblestatesethelper.hxx> +#include <sal/log.hxx> + +#include <sdpage.hxx> +#include <sdresid.hxx> +#include <vcl/svapp.hxx> +#include <vcl/settings.hxx> + +#include <strings.hrc> + +using namespace ::com::sun::star; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::accessibility; + +namespace accessibility { + +AccessibleSlideSorterObject::AccessibleSlideSorterObject( + const Reference<XAccessible>& rxParent, + ::sd::slidesorter::SlideSorter& rSlideSorter, + sal_uInt16 nPageNumber) + : mxParent(rxParent), + mnPageNumber(nPageNumber), + mrSlideSorter(rSlideSorter), + mnClientId(0) +{ +} + +AccessibleSlideSorterObject::~AccessibleSlideSorterObject() +{ + if ( ! IsDisposed()) + dispose(); +} + +void AccessibleSlideSorterObject::FireAccessibleEvent ( + short nEventId, + const uno::Any& rOldValue, + const uno::Any& rNewValue) +{ + if (mnClientId != 0) + { + AccessibleEventObject aEventObject; + + aEventObject.Source = Reference<XWeak>(this); + aEventObject.EventId = nEventId; + aEventObject.NewValue = rNewValue; + aEventObject.OldValue = rOldValue; + + comphelper::AccessibleEventNotifier::addEvent(mnClientId, aEventObject); + } +} + +void AccessibleSlideSorterObject::disposing(std::unique_lock<std::mutex>&) +{ + // Send a disposing to all listeners. + if (mnClientId != 0) + { + comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing(mnClientId, *this); + mnClientId = 0; + } +} + +//===== XAccessible =========================================================== + +Reference<XAccessibleContext> SAL_CALL + AccessibleSlideSorterObject::getAccessibleContext() +{ + ThrowIfDisposed(); + return this; +} + +//===== XAccessibleContext ==================================================== + +sal_Int32 SAL_CALL AccessibleSlideSorterObject::getAccessibleChildCount() +{ + ThrowIfDisposed(); + return 0; +} + +Reference<XAccessible> SAL_CALL AccessibleSlideSorterObject::getAccessibleChild (sal_Int32 ) +{ + ThrowIfDisposed(); + throw lang::IndexOutOfBoundsException(); +} + +Reference<XAccessible> SAL_CALL AccessibleSlideSorterObject::getAccessibleParent() +{ + ThrowIfDisposed(); + return mxParent; +} + +sal_Int32 SAL_CALL AccessibleSlideSorterObject::getAccessibleIndexInParent() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + sal_Int32 nIndexInParent(-1); + + if (mxParent.is()) + { + Reference<XAccessibleContext> xParentContext (mxParent->getAccessibleContext()); + if (xParentContext.is()) + { + sal_Int32 nChildCount (xParentContext->getAccessibleChildCount()); + for (sal_Int32 i=0; i<nChildCount; ++i) + if (xParentContext->getAccessibleChild(i).get() + == static_cast<XAccessible*>(this)) + { + nIndexInParent = i; + break; + } + } + } + + return nIndexInParent; +} + +sal_Int16 SAL_CALL AccessibleSlideSorterObject::getAccessibleRole() +{ + ThrowIfDisposed(); + return AccessibleRole::SHAPE; +} + +OUString SAL_CALL AccessibleSlideSorterObject::getAccessibleDescription() +{ + ThrowIfDisposed(); + return SdResId(STR_PAGE); +} + +OUString SAL_CALL AccessibleSlideSorterObject::getAccessibleName() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + + SdPage* pPage = GetPage(); + if (pPage != nullptr) + return pPage->GetName(); + else + return OUString(); +} + +Reference<XAccessibleRelationSet> SAL_CALL + AccessibleSlideSorterObject::getAccessibleRelationSet() +{ + ThrowIfDisposed(); + return Reference<XAccessibleRelationSet>(); +} + +Reference<XAccessibleStateSet> SAL_CALL + AccessibleSlideSorterObject::getAccessibleStateSet() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + rtl::Reference<::utl::AccessibleStateSetHelper> pStateSet = new ::utl::AccessibleStateSetHelper(); + + if (mxParent.is()) + { + // Unconditional states. + pStateSet->AddState(AccessibleStateType::SELECTABLE); + pStateSet->AddState(AccessibleStateType::FOCUSABLE); + pStateSet->AddState(AccessibleStateType::ENABLED); + pStateSet->AddState(AccessibleStateType::VISIBLE); + pStateSet->AddState(AccessibleStateType::SHOWING); + pStateSet->AddState(AccessibleStateType::ACTIVE); + pStateSet->AddState(AccessibleStateType::SENSITIVE); + + // Conditional states. + if (mrSlideSorter.GetController().GetPageSelector().IsPageSelected(mnPageNumber)) + pStateSet->AddState(AccessibleStateType::SELECTED); + if (mrSlideSorter.GetController().GetFocusManager().GetFocusedPageIndex() == mnPageNumber) + if (mrSlideSorter.GetController().GetFocusManager().IsFocusShowing()) + pStateSet->AddState(AccessibleStateType::FOCUSED); + } + + return pStateSet; +} + +lang::Locale SAL_CALL AccessibleSlideSorterObject::getLocale() +{ + ThrowIfDisposed(); + // Delegate request to parent. + if (mxParent.is()) + { + Reference<XAccessibleContext> xParentContext (mxParent->getAccessibleContext()); + if (xParentContext.is()) + return xParentContext->getLocale (); + } + + // No locale and no parent. Therefore throw exception to indicate this + // cluelessness. + throw IllegalAccessibleComponentStateException(); +} + +//===== XAccessibleEventBroadcaster =========================================== + +void SAL_CALL AccessibleSlideSorterObject::addAccessibleEventListener( + const Reference<XAccessibleEventListener>& rxListener) +{ + if (!rxListener.is()) + return; + + const std::unique_lock aGuard(m_aMutex); + + if (IsDisposed()) + { + uno::Reference<uno::XInterface> x (static_cast<lang::XComponent *>(this), uno::UNO_QUERY); + rxListener->disposing (lang::EventObject (x)); + } + else + { + if (mnClientId == 0) + mnClientId = comphelper::AccessibleEventNotifier::registerClient(); + comphelper::AccessibleEventNotifier::addEventListener(mnClientId, rxListener); + } +} + +void SAL_CALL AccessibleSlideSorterObject::removeAccessibleEventListener( + const Reference<XAccessibleEventListener>& rxListener) +{ + ThrowIfDisposed(); + if (!(rxListener.is() && mnClientId)) + return; + + const std::unique_lock aGuard(m_aMutex); + + sal_Int32 nListenerCount = comphelper::AccessibleEventNotifier::removeEventListener( mnClientId, rxListener ); + if ( !nListenerCount ) + { + // no listeners anymore + // -> revoke ourself. This may lead to the notifier thread dying (if we were the last client), + // and at least to us not firing any events anymore, in case somebody calls + // NotifyAccessibleEvent, again + comphelper::AccessibleEventNotifier::revokeClient( mnClientId ); + mnClientId = 0; + } +} + +//===== XAccessibleComponent ================================================== + +sal_Bool SAL_CALL AccessibleSlideSorterObject::containsPoint(const awt::Point& aPoint) +{ + ThrowIfDisposed(); + const awt::Size aSize (getSize()); + return (aPoint.X >= 0) + && (aPoint.X < aSize.Width) + && (aPoint.Y >= 0) + && (aPoint.Y < aSize.Height); +} + +Reference<XAccessible> SAL_CALL + AccessibleSlideSorterObject::getAccessibleAtPoint(const awt::Point& ) +{ + return nullptr; +} + +awt::Rectangle SAL_CALL AccessibleSlideSorterObject::getBounds() +{ + ThrowIfDisposed (); + + const SolarMutexGuard aSolarGuard; + + ::tools::Rectangle aBBox ( + mrSlideSorter.GetView().GetLayouter().GetPageObjectLayouter()->GetBoundingBox( + mrSlideSorter.GetModel().GetPageDescriptor(mnPageNumber), + ::sd::slidesorter::view::PageObjectLayouter::Part::PageObject, + ::sd::slidesorter::view::PageObjectLayouter::WindowCoordinateSystem)); + + if (mxParent.is()) + { + Reference<XAccessibleComponent> xParentComponent(mxParent->getAccessibleContext(), UNO_QUERY); + if (xParentComponent.is()) + { + awt::Rectangle aParentBBox (xParentComponent->getBounds()); + aBBox.Intersection(::tools::Rectangle( + aParentBBox.X, + aParentBBox.Y, + aParentBBox.Width, + aParentBBox.Height)); + } + } + + return awt::Rectangle( + aBBox.Left(), + aBBox.Top(), + aBBox.GetWidth(), + aBBox.GetHeight()); +} + +awt::Point SAL_CALL AccessibleSlideSorterObject::getLocation () +{ + ThrowIfDisposed (); + const awt::Rectangle aBBox (getBounds()); + return awt::Point(aBBox.X, aBBox.Y); +} + +awt::Point SAL_CALL AccessibleSlideSorterObject::getLocationOnScreen() +{ + ThrowIfDisposed (); + + const SolarMutexGuard aSolarGuard; + + awt::Point aLocation (getLocation()); + + if (mxParent.is()) + { + Reference<XAccessibleComponent> xParentComponent(mxParent->getAccessibleContext(),UNO_QUERY); + if (xParentComponent.is()) + { + const awt::Point aParentLocationOnScreen(xParentComponent->getLocationOnScreen()); + aLocation.X += aParentLocationOnScreen.X; + aLocation.Y += aParentLocationOnScreen.Y; + } + } + + return aLocation; +} + +awt::Size SAL_CALL AccessibleSlideSorterObject::getSize() +{ + ThrowIfDisposed (); + const awt::Rectangle aBBox (getBounds()); + return awt::Size(aBBox.Width,aBBox.Height); +} + +void SAL_CALL AccessibleSlideSorterObject::grabFocus() +{ + // nothing to do +} + +sal_Int32 SAL_CALL AccessibleSlideSorterObject::getForeground() +{ + ThrowIfDisposed (); + svtools::ColorConfig aColorConfig; + Color nColor = aColorConfig.GetColorValue( svtools::FONTCOLOR ).nColor; + return static_cast<sal_Int32>(nColor); +} + +sal_Int32 SAL_CALL AccessibleSlideSorterObject::getBackground() +{ + ThrowIfDisposed (); + Color nColor = Application::GetSettings().GetStyleSettings().GetWindowColor(); + return sal_Int32(nColor); +} + +// XServiceInfo +OUString SAL_CALL + AccessibleSlideSorterObject::getImplementationName() +{ + return "AccessibleSlideSorterObject"; +} + +sal_Bool SAL_CALL AccessibleSlideSorterObject::supportsService (const OUString& sServiceName) +{ + return cppu::supportsService(this, sServiceName); +} + +uno::Sequence< OUString> SAL_CALL + AccessibleSlideSorterObject::getSupportedServiceNames() +{ + ThrowIfDisposed (); + + return uno::Sequence<OUString> { + OUString("com.sun.star.accessibility.Accessible"), + OUString("com.sun.star.accessibility.AccessibleContext") + }; +} + +void AccessibleSlideSorterObject::ThrowIfDisposed() +{ + if (m_bDisposed) + { + SAL_WARN("sd", "Calling disposed object. Throwing exception:"); + throw lang::DisposedException ("object has been already disposed", + static_cast<uno::XWeak*>(this)); + } +} + +bool AccessibleSlideSorterObject::IsDisposed() const +{ + return m_bDisposed; +} + +SdPage* AccessibleSlideSorterObject::GetPage() const +{ + ::sd::slidesorter::model::SharedPageDescriptor pDescriptor( + mrSlideSorter.GetModel().GetPageDescriptor(mnPageNumber)); + if (pDescriptor) + return pDescriptor->GetPage(); + else + return nullptr; +} + +} // end of namespace ::accessibility + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |