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odfstudio/editeng/source/accessibility/AccessibleImageBullet.cxx
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Michael Weghorn c75ab63fdf editeng a11y: Use OWeakObject::getXWeak to disambiguate XInterface inheritance 
Change-Id: I82be83663ca690de2ff4be37a95914803880ce67
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/211196
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins
2026-09-20 22:13:33 +02:00

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/* -*- 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/gen.hxx>
#include <tools/debug.hxx>
#include <utility>
#include <vcl/svapp.hxx>
#include <vcl/settings.hxx>
#include <rtl/ustring.hxx>
#include <com/sun/star/awt/Rectangle.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <editeng/AccessibleEditableTextPara.hxx>
#include <editeng/eerdll.hxx>
#include <editeng/outliner.hxx>
#include <editeng/editrids.hrc>
#include <editeng/unoedsrc.hxx>
#include <svtools/colorcfg.hxx>
#include "AccessibleImageBullet.hxx"
using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;
namespace accessibility
{
AccessibleImageBullet::AccessibleImageBullet(uno::Reference<XAccessible> xParent,
sal_Int64 nIndexInParent) :
mnParagraphIndex( 0 ),
mnIndexInParent(nIndexInParent),
mpEditSource( nullptr ),
maEEOffset( 0, 0 ),
mxParent(std::move( xParent ))
{
// these are always on
mnStateSet = AccessibleStateType::VISIBLE;
mnStateSet |= AccessibleStateType::SHOWING;
mnStateSet |= AccessibleStateType::ENABLED;
mnStateSet |= AccessibleStateType::SENSITIVE;
}
sal_Int64 SAL_CALL AccessibleImageBullet::getAccessibleChildCount()
{
return 0;
}
uno::Reference< XAccessible > SAL_CALL AccessibleImageBullet::getAccessibleChild( sal_Int64 )
{
throw lang::IndexOutOfBoundsException(u"No children available"_ustr,
getXWeak() );
}
uno::Reference< XAccessible > SAL_CALL AccessibleImageBullet::getAccessibleParent()
{
return mxParent;
}
sal_Int64 SAL_CALL AccessibleImageBullet::getAccessibleIndexInParent()
{
return mnIndexInParent;
}
sal_Int16 SAL_CALL AccessibleImageBullet::getAccessibleRole()
{
return AccessibleRole::GRAPHIC;
}
OUString SAL_CALL AccessibleImageBullet::getAccessibleDescription()
{
// Get the string from the resource for the specified id.
return EditResId(RID_SVXSTR_A11Y_IMAGEBULLET_DESCRIPTION);
}
OUString SAL_CALL AccessibleImageBullet::getAccessibleName()
{
// Get the string from the resource for the specified id.
return EditResId(RID_SVXSTR_A11Y_IMAGEBULLET_NAME);
}
uno::Reference< XAccessibleRelationSet > SAL_CALL AccessibleImageBullet::getAccessibleRelationSet()
{
// no relations, therefore empty
return uno::Reference< XAccessibleRelationSet >();
}
sal_Int64 SAL_CALL AccessibleImageBullet::getAccessibleStateSet()
{
SolarMutexGuard aGuard;
// Create a copy of the state set and return it.
return mnStateSet;
}
lang::Locale SAL_CALL AccessibleImageBullet::getLocale()
{
SolarMutexGuard aGuard;
DBG_ASSERT(GetParagraphIndex() >= 0,
"AccessibleImageBullet::getLocale: paragraph index value overflow");
// return locale of first character in the paragraph
return LanguageTag(GetTextForwarder().GetLanguage( GetParagraphIndex(), 0 )).getLocale();
}
uno::Reference< XAccessible > SAL_CALL AccessibleImageBullet::getAccessibleAtPoint( const awt::Point& /*aPoint*/ )
{
// as we have no children, empty reference
return uno::Reference< XAccessible >();
}
awt::Rectangle AccessibleImageBullet::implGetBounds( )
{
DBG_ASSERT(GetParagraphIndex() >= 0,
"AccessibleEditableTextPara::implGetBounds: index value overflow");
SvxTextForwarder& rCacheTF = GetTextForwarder();
EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo( GetParagraphIndex() );
tools::Rectangle aParentRect = rCacheTF.GetParaBounds( GetParagraphIndex() );
if( aBulletInfo.nParagraph != EE_PARA_MAX &&
aBulletInfo.bVisible &&
aBulletInfo.nType == SVX_NUM_BITMAP )
{
tools::Rectangle aRect = aBulletInfo.aBounds;
// subtract paragraph position (bullet pos is absolute in EditEngine/Outliner)
aRect.Move( -aParentRect.Left(), -aParentRect.Top() );
// convert to screen coordinates
tools::Rectangle aScreenRect = AccessibleEditableTextPara::LogicToPixel( aRect,
rCacheTF.GetMapMode(),
GetViewForwarder() );
// offset from shape/cell
Point aOffset = maEEOffset;
return awt::Rectangle( aScreenRect.Left() + aOffset.X(),
aScreenRect.Top() + aOffset.Y(),
aScreenRect.GetSize().Width(),
aScreenRect.GetSize().Height() );
}
return awt::Rectangle();
}
void SAL_CALL AccessibleImageBullet::grabFocus( )
{
throw uno::RuntimeException(u"Not focusable"_ustr, getXWeak());
}
sal_Int32 SAL_CALL AccessibleImageBullet::getForeground( )
{
// #104444# Added to XAccessibleComponent interface
svtools::ColorConfig aColorConfig;
Color nColor = aColorConfig.GetColorValue( svtools::FONTCOLOR ).nColor;
return static_cast<sal_Int32>(nColor);
}
sal_Int32 SAL_CALL AccessibleImageBullet::getBackground( )
{
// #104444# Added to XAccessibleComponent interface
Color aColor( Application::GetSettings().GetStyleSettings().GetWindowColor() );
// the background is transparent
aColor.SetAlpha(0);
return static_cast<sal_Int32>( aColor );
}
void AccessibleImageBullet::SetEEOffset( const Point& rOffset )
{
maEEOffset = rOffset;
}
void SAL_CALL AccessibleImageBullet::dispose()
{
mxParent = nullptr;
mpEditSource = nullptr;
OAccessible::dispose();
}
void AccessibleImageBullet::SetEditSource( SvxEditSource* pEditSource )
{
mpEditSource = pEditSource;
if( !mpEditSource )
{
// going defunct
UnSetState( AccessibleStateType::SHOWING );
UnSetState( AccessibleStateType::VISIBLE );
SetState( AccessibleStateType::INVALID );
SetState( AccessibleStateType::DEFUNC );
}
}
void AccessibleImageBullet::SetState( const sal_Int64 nStateId )
{
if( !(mnStateSet & nStateId) )
{
mnStateSet |= nStateId;
NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, uno::Any(), uno::Any(nStateId));
}
}
void AccessibleImageBullet::UnSetState( const sal_Int64 nStateId )
{
if( mnStateSet & nStateId )
{
mnStateSet &= ~nStateId;
NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, uno::Any(nStateId), uno::Any());
}
}
void AccessibleImageBullet::SetParagraphIndex( sal_Int32 nIndex )
{
uno::Any aOldDesc;
uno::Any aOldName;
try
{
aOldDesc <<= getAccessibleDescription();
aOldName <<= getAccessibleName();
}
catch( const uno::Exception& ) {} // optional behaviour
sal_Int32 nOldIndex = mnParagraphIndex;
mnParagraphIndex = nIndex;
try
{
if( nOldIndex != nIndex )
{
// index and therefore description changed
NotifyAccessibleEvent(AccessibleEventId::DESCRIPTION_CHANGED, aOldDesc, uno::Any(getAccessibleDescription()));
NotifyAccessibleEvent(AccessibleEventId::NAME_CHANGED, aOldName, uno::Any(getAccessibleName()));
}
}
catch( const uno::Exception& ) {} // optional behaviour
}
SvxEditSource& AccessibleImageBullet::GetEditSource() const
{
if( !mpEditSource )
throw uno::RuntimeException(u"No edit source, object is defunct"_ustr,
cppu::getXWeak
( const_cast< AccessibleImageBullet* > (this) ) ); // disambiguate hierarchy
return *mpEditSource;
}
SvxTextForwarder& AccessibleImageBullet::GetTextForwarder() const
{
SvxEditSource& rEditSource = GetEditSource();
SvxTextForwarder* pTextForwarder = rEditSource.GetTextForwarder();
if( !pTextForwarder )
throw uno::RuntimeException(u"Unable to fetch text forwarder, object is defunct"_ustr,
cppu::getXWeak
( const_cast< AccessibleImageBullet* > (this) ) ); // disambiguate hierarchy
if( !pTextForwarder->IsValid() )
throw uno::RuntimeException(u"Text forwarder is invalid, object is defunct"_ustr,
cppu::getXWeak
( const_cast< AccessibleImageBullet* > (this) ) ); // disambiguate hierarchy
return *pTextForwarder;
}
SvxViewForwarder& AccessibleImageBullet::GetViewForwarder() const
{
SvxEditSource& rEditSource = GetEditSource();
SvxViewForwarder* pViewForwarder = rEditSource.GetViewForwarder();
if( !pViewForwarder )
{
throw uno::RuntimeException(u"Unable to fetch view forwarder, object is defunct"_ustr,
cppu::getXWeak
( const_cast< AccessibleImageBullet* > (this) ) ); // disambiguate hierarchy
}
if( !pViewForwarder->IsValid() )
throw uno::RuntimeException(u"View forwarder is invalid, object is defunct"_ustr,
cppu::getXWeak
( const_cast< AccessibleImageBullet* > (this) ) ); // disambiguate hierarchy
return *pViewForwarder;
}
} // end of namespace accessibility
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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