91fef4a475
Change-Id: Ibf912c597896a2ac0bf3ba8108f55c5018115bb0 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/135501 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
530 lines
18 KiB
C++
530 lines
18 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <tools/gen.hxx>
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#include <tools/debug.hxx>
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#include <utility>
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#include <vcl/svapp.hxx>
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#include <vcl/settings.hxx>
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#include <rtl/ustring.hxx>
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#include <com/sun/star/awt/Point.hpp>
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#include <com/sun/star/awt/Rectangle.hpp>
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#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
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#include <com/sun/star/accessibility/AccessibleRole.hpp>
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#include <com/sun/star/accessibility/AccessibleStateType.hpp>
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#include <com/sun/star/accessibility/AccessibleEventId.hpp>
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#include <comphelper/accessibleeventnotifier.hxx>
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#include <cppuhelper/supportsservice.hxx>
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#include <unotools/accessiblestatesethelper.hxx>
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#include <i18nlangtag/languagetag.hxx>
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#include <editeng/AccessibleEditableTextPara.hxx>
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#include <editeng/eerdll.hxx>
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#include <editeng/editdata.hxx>
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#include <editeng/outliner.hxx>
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#include <editeng/editrids.hrc>
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#include <editeng/unoedsrc.hxx>
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#include <svtools/colorcfg.hxx>
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#include "AccessibleImageBullet.hxx"
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::accessibility;
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namespace accessibility
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{
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AccessibleImageBullet::AccessibleImageBullet ( uno::Reference< XAccessible > xParent ) :
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mnParagraphIndex( 0 ),
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mnIndexInParent( 0 ),
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mpEditSource( nullptr ),
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maEEOffset( 0, 0 ),
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mxParent(std::move( xParent )),
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// well, that's strictly (UNO) exception safe, though not
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// really robust. We rely on the fact that this member is
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// constructed last, and that the constructor body catches
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// exceptions, thus no chance for exceptions once the Id is
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// fetched. Nevertheless, normally should employ RAII here...
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mnNotifierClientId(::comphelper::AccessibleEventNotifier::registerClient())
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{
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try
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{
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// Create the state set.
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mxStateSet = new ::utl::AccessibleStateSetHelper ();
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// these are always on
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mxStateSet->AddState( AccessibleStateType::VISIBLE );
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mxStateSet->AddState( AccessibleStateType::SHOWING );
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mxStateSet->AddState( AccessibleStateType::ENABLED );
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mxStateSet->AddState( AccessibleStateType::SENSITIVE );
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}
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catch( const uno::Exception& ) {}
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}
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AccessibleImageBullet::~AccessibleImageBullet()
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{
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// sign off from event notifier
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if( getNotifierClientId() != -1 )
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{
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try
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{
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::comphelper::AccessibleEventNotifier::revokeClient( getNotifierClientId() );
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}
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catch( const uno::Exception& ) {}
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}
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}
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uno::Reference< XAccessibleContext > SAL_CALL AccessibleImageBullet::getAccessibleContext( )
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{
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// We implement the XAccessibleContext interface in the same object
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return uno::Reference< XAccessibleContext > ( this );
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}
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sal_Int32 SAL_CALL AccessibleImageBullet::getAccessibleChildCount()
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{
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return 0;
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}
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uno::Reference< XAccessible > SAL_CALL AccessibleImageBullet::getAccessibleChild( sal_Int32 )
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{
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throw lang::IndexOutOfBoundsException("No children available",
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uno::Reference< uno::XInterface >
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( static_cast< ::cppu::OWeakObject* > (this) ) ); // static_cast: disambiguate hierarchy
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}
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uno::Reference< XAccessible > SAL_CALL AccessibleImageBullet::getAccessibleParent()
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{
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return mxParent;
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}
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sal_Int32 SAL_CALL AccessibleImageBullet::getAccessibleIndexInParent()
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{
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return mnIndexInParent;
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}
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sal_Int16 SAL_CALL AccessibleImageBullet::getAccessibleRole()
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{
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return AccessibleRole::GRAPHIC;
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}
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OUString SAL_CALL AccessibleImageBullet::getAccessibleDescription()
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{
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// Get the string from the resource for the specified id.
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return EditResId(RID_SVXSTR_A11Y_IMAGEBULLET_DESCRIPTION);
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}
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OUString SAL_CALL AccessibleImageBullet::getAccessibleName()
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{
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// Get the string from the resource for the specified id.
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return EditResId(RID_SVXSTR_A11Y_IMAGEBULLET_NAME);
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}
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uno::Reference< XAccessibleRelationSet > SAL_CALL AccessibleImageBullet::getAccessibleRelationSet()
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{
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// no relations, therefore empty
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return uno::Reference< XAccessibleRelationSet >();
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}
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uno::Reference< XAccessibleStateSet > SAL_CALL AccessibleImageBullet::getAccessibleStateSet()
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{
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SolarMutexGuard aGuard;
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// Create a copy of the state set and return it.
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if( !mxStateSet )
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return uno::Reference<XAccessibleStateSet>();
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return uno::Reference<XAccessibleStateSet>( new ::utl::AccessibleStateSetHelper (*mxStateSet) );
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}
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lang::Locale SAL_CALL AccessibleImageBullet::getLocale()
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{
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SolarMutexGuard aGuard;
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DBG_ASSERT(GetParagraphIndex() >= 0,
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"AccessibleImageBullet::getLocale: paragraph index value overflow");
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// return locale of first character in the paragraph
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return LanguageTag(GetTextForwarder().GetLanguage( GetParagraphIndex(), 0 )).getLocale();
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}
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void SAL_CALL AccessibleImageBullet::addAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
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{
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if( getNotifierClientId() != -1 )
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::comphelper::AccessibleEventNotifier::addEventListener( getNotifierClientId(), xListener );
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}
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void SAL_CALL AccessibleImageBullet::removeAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
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{
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if( getNotifierClientId() == -1 )
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return;
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const sal_Int32 nListenerCount = ::comphelper::AccessibleEventNotifier::removeEventListener( getNotifierClientId(), xListener );
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if ( !nListenerCount )
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{
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// no listeners anymore
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// -> revoke ourself. This may lead to the notifier thread dying (if we were the last client),
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// and at least to us not firing any events anymore, in case somebody calls
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// NotifyAccessibleEvent, again
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::comphelper::AccessibleEventNotifier::TClientId nId( getNotifierClientId() );
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mnNotifierClientId = -1;
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::comphelper::AccessibleEventNotifier::revokeClient( nId );
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}
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}
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sal_Bool SAL_CALL AccessibleImageBullet::containsPoint( const awt::Point& rPoint )
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{
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SolarMutexGuard aGuard;
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DBG_ASSERT(GetParagraphIndex() >= 0,
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"AccessibleEditableTextPara::contains: index value overflow");
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awt::Rectangle aTmpRect = implGetBounds();
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tools::Rectangle aRect( Point(aTmpRect.X, aTmpRect.Y), Size(aTmpRect.Width, aTmpRect.Height) );
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Point aPoint( rPoint.X, rPoint.Y );
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return aRect.Contains( aPoint );
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}
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uno::Reference< XAccessible > SAL_CALL AccessibleImageBullet::getAccessibleAtPoint( const awt::Point& /*aPoint*/ )
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{
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// as we have no children, empty reference
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return uno::Reference< XAccessible >();
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}
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awt::Rectangle SAL_CALL AccessibleImageBullet::getBounds( )
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{
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SolarMutexGuard aGuard;
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return implGetBounds();
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}
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awt::Rectangle AccessibleImageBullet::implGetBounds( )
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{
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DBG_ASSERT(GetParagraphIndex() >= 0,
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"AccessibleEditableTextPara::implGetBounds: index value overflow");
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SvxTextForwarder& rCacheTF = GetTextForwarder();
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EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo( GetParagraphIndex() );
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tools::Rectangle aParentRect = rCacheTF.GetParaBounds( GetParagraphIndex() );
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if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND &&
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aBulletInfo.bVisible &&
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aBulletInfo.nType == SVX_NUM_BITMAP )
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{
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tools::Rectangle aRect = aBulletInfo.aBounds;
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// subtract paragraph position (bullet pos is absolute in EditEngine/Outliner)
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aRect.Move( -aParentRect.Left(), -aParentRect.Top() );
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// convert to screen coordinates
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tools::Rectangle aScreenRect = AccessibleEditableTextPara::LogicToPixel( aRect,
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rCacheTF.GetMapMode(),
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GetViewForwarder() );
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// offset from shape/cell
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Point aOffset = maEEOffset;
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return awt::Rectangle( aScreenRect.Left() + aOffset.X(),
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aScreenRect.Top() + aOffset.Y(),
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aScreenRect.GetSize().Width(),
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aScreenRect.GetSize().Height() );
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}
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return awt::Rectangle();
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}
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awt::Point SAL_CALL AccessibleImageBullet::getLocation( )
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{
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SolarMutexGuard aGuard;
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awt::Rectangle aRect = implGetBounds();
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return awt::Point( aRect.X, aRect.Y );
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}
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awt::Point SAL_CALL AccessibleImageBullet::getLocationOnScreen( )
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{
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SolarMutexGuard aGuard;
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// relate us to parent
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uno::Reference< XAccessible > xParent = getAccessibleParent();
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if( xParent.is() )
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{
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uno::Reference< XAccessibleComponent > xParentComponent( xParent, uno::UNO_QUERY );
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if( xParentComponent.is() )
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{
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awt::Point aRefPoint = xParentComponent->getLocationOnScreen();
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awt::Point aPoint = getLocation();
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aPoint.X += aRefPoint.X;
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aPoint.Y += aRefPoint.Y;
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return aPoint;
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}
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}
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throw uno::RuntimeException("Cannot access parent",
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uno::Reference< uno::XInterface >
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( static_cast< XAccessible* > (this) ) ); // disambiguate hierarchy
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}
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awt::Size SAL_CALL AccessibleImageBullet::getSize( )
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{
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SolarMutexGuard aGuard;
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awt::Rectangle aRect = implGetBounds();
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return awt::Size( aRect.Width, aRect.Height );
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}
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void SAL_CALL AccessibleImageBullet::grabFocus( )
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{
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throw uno::RuntimeException("Not focusable",
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uno::Reference< uno::XInterface >
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( static_cast< XAccessible* > (this) ) ); // disambiguate hierarchy
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}
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sal_Int32 SAL_CALL AccessibleImageBullet::getForeground( )
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{
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// #104444# Added to XAccessibleComponent interface
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svtools::ColorConfig aColorConfig;
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Color nColor = aColorConfig.GetColorValue( svtools::FONTCOLOR ).nColor;
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return static_cast<sal_Int32>(nColor);
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}
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sal_Int32 SAL_CALL AccessibleImageBullet::getBackground( )
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{
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// #104444# Added to XAccessibleComponent interface
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Color aColor( Application::GetSettings().GetStyleSettings().GetWindowColor() );
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// the background is transparent
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aColor.SetAlpha(0);
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return static_cast<sal_Int32>( aColor );
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}
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OUString SAL_CALL AccessibleImageBullet::getImplementationName()
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{
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return "AccessibleImageBullet";
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}
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sal_Bool SAL_CALL AccessibleImageBullet::supportsService (const OUString& sServiceName)
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{
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return cppu::supportsService(this, sServiceName);
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}
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uno::Sequence< OUString > SAL_CALL AccessibleImageBullet::getSupportedServiceNames()
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{
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return { "com.sun.star.accessibility.AccessibleContext" };
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}
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void AccessibleImageBullet::SetIndexInParent( sal_Int32 nIndex )
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{
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mnIndexInParent = nIndex;
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}
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void AccessibleImageBullet::SetEEOffset( const Point& rOffset )
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{
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maEEOffset = rOffset;
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}
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void AccessibleImageBullet::Dispose()
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{
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int nClientId( getNotifierClientId() );
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// #108212# drop all references before notifying dispose
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mxParent = nullptr;
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mnNotifierClientId = -1;
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mpEditSource = nullptr;
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// notify listeners
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if( nClientId != -1 )
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{
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try
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{
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uno::Reference < XAccessibleContext > xThis = getAccessibleContext();
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// #106234# Delegate to EventNotifier
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::comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( nClientId, xThis );
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}
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catch( const uno::Exception& ) {}
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}
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}
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void AccessibleImageBullet::SetEditSource( SvxEditSource* pEditSource )
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{
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mpEditSource = pEditSource;
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if( !mpEditSource )
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{
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// going defunc
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UnSetState( AccessibleStateType::SHOWING );
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UnSetState( AccessibleStateType::VISIBLE );
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SetState( AccessibleStateType::INVALID );
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SetState( AccessibleStateType::DEFUNC );
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Dispose();
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}
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}
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void AccessibleImageBullet::FireEvent(const sal_Int16 nEventId, const uno::Any& rNewValue, const uno::Any& rOldValue ) const
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{
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uno::Reference < XAccessibleContext > xThis( const_cast< AccessibleImageBullet* > (this)->getAccessibleContext() );
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AccessibleEventObject aEvent(xThis, nEventId, rNewValue, rOldValue);
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// #106234# Delegate to EventNotifier
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::comphelper::AccessibleEventNotifier::addEvent( getNotifierClientId(),
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aEvent );
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}
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void AccessibleImageBullet::SetState( const sal_Int16 nStateId )
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{
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if( mxStateSet != nullptr &&
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!mxStateSet->contains(nStateId) )
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{
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mxStateSet->AddState( nStateId );
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FireEvent( AccessibleEventId::STATE_CHANGED, uno::Any( nStateId ) );
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}
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}
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void AccessibleImageBullet::UnSetState( const sal_Int16 nStateId )
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{
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if( mxStateSet != nullptr &&
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mxStateSet->contains(nStateId) )
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{
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mxStateSet->RemoveState( nStateId );
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FireEvent( AccessibleEventId::STATE_CHANGED, uno::Any(), uno::Any( nStateId ) );
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}
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}
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void AccessibleImageBullet::SetParagraphIndex( sal_Int32 nIndex )
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{
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uno::Any aOldDesc;
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uno::Any aOldName;
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try
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{
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aOldDesc <<= getAccessibleDescription();
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aOldName <<= getAccessibleName();
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}
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catch( const uno::Exception& ) {} // optional behaviour
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sal_Int32 nOldIndex = mnParagraphIndex;
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mnParagraphIndex = nIndex;
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try
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{
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if( nOldIndex != nIndex )
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{
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// index and therefore description changed
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FireEvent( AccessibleEventId::DESCRIPTION_CHANGED, uno::Any( getAccessibleDescription() ), aOldDesc );
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FireEvent( AccessibleEventId::NAME_CHANGED, uno::Any( getAccessibleName() ), aOldName );
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}
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}
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catch( const uno::Exception& ) {} // optional behaviour
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}
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SvxEditSource& AccessibleImageBullet::GetEditSource() const
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{
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if( !mpEditSource )
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throw uno::RuntimeException("No edit source, object is defunct",
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uno::Reference< uno::XInterface >
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( static_cast< ::cppu::OWeakObject* >
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( const_cast< AccessibleImageBullet* > (this) ) ) ); // disambiguate hierarchy
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return *mpEditSource;
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}
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SvxTextForwarder& AccessibleImageBullet::GetTextForwarder() const
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{
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SvxEditSource& rEditSource = GetEditSource();
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SvxTextForwarder* pTextForwarder = rEditSource.GetTextForwarder();
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if( !pTextForwarder )
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throw uno::RuntimeException("Unable to fetch text forwarder, object is defunct",
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uno::Reference< uno::XInterface >
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( static_cast< ::cppu::OWeakObject* >
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( const_cast< AccessibleImageBullet* > (this) ) ) ); // disambiguate hierarchy
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if( !pTextForwarder->IsValid() )
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throw uno::RuntimeException("Text forwarder is invalid, object is defunct",
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uno::Reference< uno::XInterface >
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( static_cast< ::cppu::OWeakObject* >
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( const_cast< AccessibleImageBullet* > (this) ) ) ); // disambiguate hierarchy
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return *pTextForwarder;
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}
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SvxViewForwarder& AccessibleImageBullet::GetViewForwarder() const
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{
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SvxEditSource& rEditSource = GetEditSource();
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SvxViewForwarder* pViewForwarder = rEditSource.GetViewForwarder();
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if( !pViewForwarder )
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{
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throw uno::RuntimeException("Unable to fetch view forwarder, object is defunct",
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uno::Reference< uno::XInterface >
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( static_cast< ::cppu::OWeakObject* >
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( const_cast< AccessibleImageBullet* > (this) ) ) ); // disambiguate hierarchy
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}
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if( !pViewForwarder->IsValid() )
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throw uno::RuntimeException("View forwarder is invalid, object is defunct",
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uno::Reference< uno::XInterface >
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( static_cast< ::cppu::OWeakObject* >
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( const_cast< AccessibleImageBullet* > (this) ) ) ); // disambiguate hierarchy
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return *pViewForwarder;
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}
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} // end of namespace accessibility
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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