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| -rw-r--r-- | svtools/source/control/accessibleruler.cxx | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/svtools/source/control/accessibleruler.cxx b/svtools/source/control/accessibleruler.cxx new file mode 100644 index 000000000..cfd54364e --- /dev/null +++ b/svtools/source/control/accessibleruler.cxx @@ -0,0 +1,362 @@ +/* -*- 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 <com/sun/star/accessibility/AccessibleRole.hpp> +#include <com/sun/star/accessibility/IllegalAccessibleComponentStateException.hpp> +#include <unotools/accessiblestatesethelper.hxx> +#include <com/sun/star/accessibility/AccessibleStateType.hpp> +#include <comphelper/accessibleeventnotifier.hxx> +#include <cppuhelper/supportsservice.hxx> +#include <toolkit/helper/convert.hxx> +#include <vcl/svapp.hxx> +#include <osl/mutex.hxx> +#include <tools/gen.hxx> + +#include <svtools/ruler.hxx> +#include "accessibleruler.hxx" + +using namespace ::cppu; +using namespace ::osl; +using namespace ::com::sun::star; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::accessibility; + + +//===== internal ============================================================ + +SvtRulerAccessible::SvtRulerAccessible( + const uno::Reference< XAccessible >& rxParent, Ruler& rRepr, const OUString& rName ) : + + SvtRulerAccessible_Base( m_aMutex ), + msName( rName ), + mxParent( rxParent ), + mpRepr( &rRepr ), + mnClientId( 0 ) +{ +} + +SvtRulerAccessible::~SvtRulerAccessible() +{ + + if( IsAlive() ) + { + osl_atomic_increment( &m_refCount ); + dispose(); // set mpRepr = NULL & release all children + } +} + +//===== XAccessible ========================================================= + +uno::Reference< XAccessibleContext > SAL_CALL SvtRulerAccessible::getAccessibleContext() +{ + return this; +} + +//===== XAccessibleComponent ================================================ + +sal_Bool SAL_CALL SvtRulerAccessible::containsPoint( const awt::Point& rPoint ) +{ + // no guard -> done in getBounds() +// return GetBoundingBox().IsInside( VCLPoint( rPoint ) ); + return tools::Rectangle( Point( 0, 0 ), GetBoundingBox().GetSize() ).IsInside( VCLPoint( rPoint ) ); +} + +uno::Reference< XAccessible > SAL_CALL SvtRulerAccessible::getAccessibleAtPoint( const awt::Point& ) +{ + ::osl::MutexGuard aGuard( m_aMutex ); + + ThrowExceptionIfNotAlive(); + + uno::Reference< XAccessible > xRet; + + + return xRet; +} + +awt::Rectangle SAL_CALL SvtRulerAccessible::getBounds() +{ + // no guard -> done in GetBoundingBox() + return AWTRectangle( GetBoundingBox() ); +} + +awt::Point SAL_CALL SvtRulerAccessible::getLocation() +{ + // no guard -> done in GetBoundingBox() + return AWTPoint( GetBoundingBox().TopLeft() ); +} + +awt::Point SAL_CALL SvtRulerAccessible::getLocationOnScreen() +{ + // no guard -> done in GetBoundingBoxOnScreen() + return AWTPoint( GetBoundingBoxOnScreen().TopLeft() ); +} + +awt::Size SAL_CALL SvtRulerAccessible::getSize() +{ + // no guard -> done in GetBoundingBox() + return AWTSize( GetBoundingBox().GetSize() ); +} + +bool SvtRulerAccessible::isVisible() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + + ThrowExceptionIfNotAlive(); + + return mpRepr->IsVisible(); +} + +//===== XAccessibleContext ================================================== +sal_Int32 SAL_CALL SvtRulerAccessible::getAccessibleChildCount() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + + ThrowExceptionIfNotAlive(); + + return 0; +} + +uno::Reference< XAccessible > SAL_CALL SvtRulerAccessible::getAccessibleChild( sal_Int32 ) +{ + uno::Reference< XAccessible > xChild ; + + return xChild; +} + +uno::Reference< XAccessible > SAL_CALL SvtRulerAccessible::getAccessibleParent() +{ + return mxParent; +} + +sal_Int32 SAL_CALL SvtRulerAccessible::getAccessibleIndexInParent() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + // Use a simple but slow solution for now. Optimize later. + + // Iterate over all the parent's children and search for this object. + if( mxParent.is() ) + { + uno::Reference< XAccessibleContext > xParentContext( mxParent->getAccessibleContext() ); + if( xParentContext.is() ) + { + sal_Int32 nChildCount = xParentContext->getAccessibleChildCount(); + for( sal_Int32 i = 0 ; i < nChildCount ; ++i ) + { + uno::Reference< XAccessible > xChild( xParentContext->getAccessibleChild( i ) ); + if( xChild.get() == static_cast<XAccessible*>(this) ) + return i; + } + } + } + + // Return -1 to indicate that this object's parent does not know about the + // object. + return -1; +} + +sal_Int16 SAL_CALL SvtRulerAccessible::getAccessibleRole() +{ + return AccessibleRole::RULER; +} + +OUString SAL_CALL SvtRulerAccessible::getAccessibleDescription() +{ + return OUString(); +} + +OUString SAL_CALL SvtRulerAccessible::getAccessibleName() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + return msName; +} + +/** Return empty uno::Reference to indicate that the relation set is not + supported. +*/ +uno::Reference< XAccessibleRelationSet > SAL_CALL SvtRulerAccessible::getAccessibleRelationSet() +{ + return uno::Reference< XAccessibleRelationSet >(); +} + + +uno::Reference< XAccessibleStateSet > SAL_CALL SvtRulerAccessible::getAccessibleStateSet() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + utl::AccessibleStateSetHelper* pStateSetHelper = new utl::AccessibleStateSetHelper; + + if( IsAlive() ) + { + pStateSetHelper->AddState( AccessibleStateType::ENABLED ); + + pStateSetHelper->AddState( AccessibleStateType::SHOWING ); + + if( isVisible() ) + pStateSetHelper->AddState( AccessibleStateType::VISIBLE ); + + if ( mpRepr->GetStyle() & WB_HORZ ) + pStateSetHelper->AddState( AccessibleStateType::HORIZONTAL ); + else + pStateSetHelper->AddState( AccessibleStateType::VERTICAL ); + + if(pStateSetHelper->contains(AccessibleStateType::FOCUSABLE)) + { + pStateSetHelper->RemoveState( AccessibleStateType::FOCUSABLE ); + } + + } + + + return pStateSetHelper; +} + +lang::Locale SAL_CALL SvtRulerAccessible::getLocale() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + if( mxParent.is() ) + { + uno::Reference< XAccessibleContext > xParentContext( mxParent->getAccessibleContext() ); + if( xParentContext.is() ) + return xParentContext->getLocale(); + } + + // No parent. Therefore throw exception to indicate this cluelessness. + throw IllegalAccessibleComponentStateException(); +} + +void SAL_CALL SvtRulerAccessible::addAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener ) +{ + if (xListener.is()) + { + ::osl::MutexGuard aGuard( m_aMutex ); + if (!mnClientId) + mnClientId = comphelper::AccessibleEventNotifier::registerClient( ); + comphelper::AccessibleEventNotifier::addEventListener( mnClientId, xListener ); + } +} + +void SAL_CALL SvtRulerAccessible::removeAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener ) +{ + if (!(xListener.is() && mnClientId)) + return; + + ::osl::MutexGuard aGuard( m_aMutex ); + + sal_Int32 nListenerCount = comphelper::AccessibleEventNotifier::removeEventListener( mnClientId, xListener ); + 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; + } +} + +void SAL_CALL SvtRulerAccessible::grabFocus() +{ + SolarMutexGuard aSolarGuard; + ::osl::MutexGuard aGuard( m_aMutex ); + + ThrowExceptionIfNotAlive(); + + mpRepr->GrabFocus(); +} + +sal_Int32 SvtRulerAccessible::getForeground( ) +{ + SolarMutexGuard aSolarGuard; + ::osl::MutexGuard aGuard( m_aMutex ); + ThrowExceptionIfNotAlive(); + + return sal_Int32(mpRepr->GetControlForeground()); +} +sal_Int32 SvtRulerAccessible::getBackground( ) +{ + SolarMutexGuard aSolarGuard; + ::osl::MutexGuard aGuard( m_aMutex ); + ThrowExceptionIfNotAlive(); + + return sal_Int32(mpRepr->GetControlBackground()); +} + +// XServiceInfo +OUString SAL_CALL SvtRulerAccessible::getImplementationName() +{ + return "com.sun.star.comp.ui.SvtRulerAccessible"; +} + +sal_Bool SAL_CALL SvtRulerAccessible::supportsService( const OUString& sServiceName ) +{ + return cppu::supportsService( this, sServiceName ); +} + +Sequence< OUString > SAL_CALL SvtRulerAccessible::getSupportedServiceNames() +{ + return { "com.sun.star.accessibility.AccessibleContext" }; +} + +//===== XTypeProvider ======================================================= +Sequence< sal_Int8 > SAL_CALL SvtRulerAccessible::getImplementationId() +{ + return css::uno::Sequence<sal_Int8>(); +} + +void SAL_CALL SvtRulerAccessible::disposing() +{ + if( rBHelper.bDisposed ) + return; + + ::osl::MutexGuard aGuard( m_aMutex ); + mpRepr = nullptr; // object dies with representation + + // Send a disposing to all listeners. + if ( mnClientId ) + { + comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( mnClientId, *this ); + mnClientId = 0; + } + mxParent.clear(); +} + +tools::Rectangle SvtRulerAccessible::GetBoundingBoxOnScreen() +{ + SolarMutexGuard aSolarGuard; + ::osl::MutexGuard aGuard( m_aMutex ); + + ThrowExceptionIfNotAlive(); + return tools::Rectangle( mpRepr->GetParent()->OutputToAbsoluteScreenPixel( mpRepr->GetPosPixel() ), mpRepr->GetSizePixel() ); +} + +tools::Rectangle SvtRulerAccessible::GetBoundingBox() +{ + SolarMutexGuard aSolarGuard; + ::osl::MutexGuard aGuard( m_aMutex ); + + ThrowExceptionIfNotAlive(); + + return tools::Rectangle( mpRepr->GetPosPixel(), mpRepr->GetSizePixel() ); +} + +void SvtRulerAccessible::ThrowExceptionIfNotAlive() +{ + if( rBHelper.bDisposed || rBHelper.bInDispose ) + throw lang::DisposedException(); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |