Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 530 insertions, 0 deletions

diff --git a/editeng/source/accessibility/AccessibleImageBullet.cxx b/editeng/source/accessibility/AccessibleImageBullet.cxx
new file mode 100644
index 000000000..da157b919
--- /dev/null
+++ b/editeng/source/accessibility/AccessibleImageBullet.cxx
@@ -0,0 +1,530 @@
+/* -*- 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/Point.hpp>
+#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 <comphelper/accessibleeventnotifier.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <editeng/AccessibleEditableTextPara.hxx>
+#include <editeng/eerdll.hxx>
+
+#include <editeng/editdata.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 ) :
+        mnParagraphIndex( 0 ),
+        mnIndexInParent( 0 ),
+        mpEditSource( nullptr ),
+        maEEOffset( 0, 0 ),
+        mxParent(std::move( xParent )),
+        // well, that's strictly (UNO) exception safe, though not
+        // really robust. We rely on the fact that this member is
+        // constructed last, and that the constructor body catches
+        // exceptions, thus no chance for exceptions once the Id is
+        // fetched. Nevertheless, normally should employ RAII here...
+        mnNotifierClientId(::comphelper::AccessibleEventNotifier::registerClient())
+    {
+        try
+        {
+            // Create the state set.
+            mxStateSet  = new ::utl::AccessibleStateSetHelper ();
+
+            // these are always on
+            mxStateSet->AddState( AccessibleStateType::VISIBLE );
+            mxStateSet->AddState( AccessibleStateType::SHOWING );
+            mxStateSet->AddState( AccessibleStateType::ENABLED );
+            mxStateSet->AddState( AccessibleStateType::SENSITIVE );
+        }
+        catch( const uno::Exception& ) {}
+    }
+
+    AccessibleImageBullet::~AccessibleImageBullet()
+    {
+
+        // sign off from event notifier
+        if( getNotifierClientId() != -1 )
+        {
+            try
+            {
+                ::comphelper::AccessibleEventNotifier::revokeClient( getNotifierClientId() );
+            }
+            catch( const uno::Exception& ) {}
+        }
+    }
+
+    uno::Reference< XAccessibleContext > SAL_CALL AccessibleImageBullet::getAccessibleContext(  )
+    {
+
+        // We implement the XAccessibleContext interface in the same object
+        return uno::Reference< XAccessibleContext > ( this );
+    }
+
+    sal_Int32 SAL_CALL  AccessibleImageBullet::getAccessibleChildCount()
+    {
+
+        return 0;
+    }
+
+    uno::Reference< XAccessible > SAL_CALL  AccessibleImageBullet::getAccessibleChild( sal_Int32 )
+    {
+        throw lang::IndexOutOfBoundsException("No children available",
+                                              uno::Reference< uno::XInterface >
+                                              ( static_cast< ::cppu::OWeakObject* > (this) ) ); // static_cast: disambiguate hierarchy
+    }
+
+    uno::Reference< XAccessible > SAL_CALL  AccessibleImageBullet::getAccessibleParent()
+    {
+
+        return mxParent;
+    }
+
+    sal_Int32 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 >();
+    }
+
+    uno::Reference< XAccessibleStateSet > SAL_CALL AccessibleImageBullet::getAccessibleStateSet()
+    {
+
+        SolarMutexGuard aGuard;
+
+        // Create a copy of the state set and return it.
+
+        if( !mxStateSet )
+            return uno::Reference<XAccessibleStateSet>();
+
+        return uno::Reference<XAccessibleStateSet>( new ::utl::AccessibleStateSetHelper (*mxStateSet) );
+    }
+
+    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();
+    }
+
+    void SAL_CALL AccessibleImageBullet::addAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
+    {
+
+        if( getNotifierClientId() != -1 )
+            ::comphelper::AccessibleEventNotifier::addEventListener( getNotifierClientId(), xListener );
+    }
+
+    void SAL_CALL AccessibleImageBullet::removeAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
+    {
+
+        if( getNotifierClientId() == -1 )
+            return;
+
+        const sal_Int32 nListenerCount = ::comphelper::AccessibleEventNotifier::removeEventListener( getNotifierClientId(), 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::TClientId nId( getNotifierClientId() );
+            mnNotifierClientId = -1;
+            ::comphelper::AccessibleEventNotifier::revokeClient( nId );
+        }
+    }
+
+    sal_Bool SAL_CALL AccessibleImageBullet::containsPoint( const awt::Point& rPoint )
+    {
+
+        SolarMutexGuard aGuard;
+
+        DBG_ASSERT(GetParagraphIndex() >= 0,
+                   "AccessibleEditableTextPara::contains: index value overflow");
+
+        awt::Rectangle aTmpRect = implGetBounds();
+        tools::Rectangle aRect( Point(aTmpRect.X, aTmpRect.Y), Size(aTmpRect.Width, aTmpRect.Height) );
+        Point aPoint( rPoint.X, rPoint.Y );
+
+        return aRect.Contains( aPoint );
+    }
+
+    uno::Reference< XAccessible > SAL_CALL AccessibleImageBullet::getAccessibleAtPoint( const awt::Point& /*aPoint*/ )
+    {
+
+        // as we have no children, empty reference
+        return uno::Reference< XAccessible >();
+    }
+
+    awt::Rectangle SAL_CALL AccessibleImageBullet::getBounds(  )
+    {
+        SolarMutexGuard aGuard;
+
+        return implGetBounds();
+    }
+    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_NOT_FOUND &&
+            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();
+    }
+
+    awt::Point SAL_CALL AccessibleImageBullet::getLocation(  )
+    {
+
+        SolarMutexGuard aGuard;
+
+        awt::Rectangle aRect = implGetBounds();
+
+        return awt::Point( aRect.X, aRect.Y );
+    }
+
+    awt::Point SAL_CALL AccessibleImageBullet::getLocationOnScreen(  )
+    {
+
+        SolarMutexGuard aGuard;
+
+        // relate us to parent
+        uno::Reference< XAccessible > xParent = getAccessibleParent();
+        if( xParent.is() )
+        {
+            uno::Reference< XAccessibleComponent > xParentComponent( xParent, uno::UNO_QUERY );
+            if( xParentComponent.is() )
+            {
+                awt::Point aRefPoint = xParentComponent->getLocationOnScreen();
+                awt::Point aPoint = getLocation();
+                aPoint.X += aRefPoint.X;
+                aPoint.Y += aRefPoint.Y;
+
+                return aPoint;
+            }
+        }
+
+        throw uno::RuntimeException("Cannot access parent",
+                                    uno::Reference< uno::XInterface >
+                                    ( static_cast< XAccessible* > (this) ) );   // disambiguate hierarchy
+    }
+
+    awt::Size SAL_CALL AccessibleImageBullet::getSize(  )
+    {
+
+        SolarMutexGuard aGuard;
+
+        awt::Rectangle aRect = implGetBounds();
+
+        return awt::Size( aRect.Width, aRect.Height );
+    }
+
+    void SAL_CALL AccessibleImageBullet::grabFocus(  )
+    {
+
+        throw uno::RuntimeException("Not focusable",
+                                    uno::Reference< uno::XInterface >
+                                    ( static_cast< XAccessible* > (this) ) );   // disambiguate hierarchy
+    }
+
+    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 );
+    }
+
+    OUString SAL_CALL AccessibleImageBullet::getImplementationName()
+    {
+
+        return "AccessibleImageBullet";
+    }
+
+    sal_Bool SAL_CALL AccessibleImageBullet::supportsService (const OUString& sServiceName)
+    {
+
+        return cppu::supportsService(this, sServiceName);
+    }
+
+    uno::Sequence< OUString > SAL_CALL AccessibleImageBullet::getSupportedServiceNames()
+    {
+        return { "com.sun.star.accessibility.AccessibleContext" };
+    }
+
+    void AccessibleImageBullet::SetIndexInParent( sal_Int32 nIndex )
+    {
+
+        mnIndexInParent = nIndex;
+    }
+
+    void AccessibleImageBullet::SetEEOffset( const Point& rOffset )
+    {
+
+        maEEOffset = rOffset;
+    }
+
+    void AccessibleImageBullet::Dispose()
+    {
+
+        int nClientId( getNotifierClientId() );
+
+        // #108212# drop all references before notifying dispose
+        mxParent = nullptr;
+        mnNotifierClientId = -1;
+        mpEditSource = nullptr;
+
+        // notify listeners
+        if( nClientId != -1 )
+        {
+            try
+            {
+                uno::Reference < XAccessibleContext > xThis = getAccessibleContext();
+
+                // #106234# Delegate to EventNotifier
+                ::comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( nClientId, xThis );
+            }
+            catch( const uno::Exception& ) {}
+        }
+    }
+
+    void AccessibleImageBullet::SetEditSource( SvxEditSource* pEditSource )
+    {
+
+        mpEditSource = pEditSource;
+
+        if( !mpEditSource )
+        {
+            // going defunc
+            UnSetState( AccessibleStateType::SHOWING );
+            UnSetState( AccessibleStateType::VISIBLE );
+            SetState( AccessibleStateType::INVALID );
+            SetState( AccessibleStateType::DEFUNC );
+
+            Dispose();
+        }
+    }
+
+    void AccessibleImageBullet::FireEvent(const sal_Int16 nEventId, const uno::Any& rNewValue, const uno::Any& rOldValue ) const
+    {
+
+        uno::Reference < XAccessibleContext > xThis( const_cast< AccessibleImageBullet* > (this)->getAccessibleContext() );
+
+        AccessibleEventObject aEvent(xThis, nEventId, rNewValue, rOldValue);
+
+        // #106234# Delegate to EventNotifier
+        ::comphelper::AccessibleEventNotifier::addEvent( getNotifierClientId(),
+                                                         aEvent );
+    }
+
+    void AccessibleImageBullet::SetState( const sal_Int16 nStateId )
+    {
+        if( mxStateSet != nullptr &&
+            !mxStateSet->contains(nStateId) )
+        {
+            mxStateSet->AddState( nStateId );
+            FireEvent( AccessibleEventId::STATE_CHANGED, uno::Any( nStateId ) );
+        }
+    }
+
+    void AccessibleImageBullet::UnSetState( const sal_Int16 nStateId )
+    {
+        if( mxStateSet != nullptr &&
+            mxStateSet->contains(nStateId) )
+        {
+            mxStateSet->RemoveState( nStateId );
+            FireEvent( AccessibleEventId::STATE_CHANGED, uno::Any(), uno::Any( nStateId ) );
+        }
+    }
+
+
+    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
+                FireEvent( AccessibleEventId::DESCRIPTION_CHANGED, uno::Any( getAccessibleDescription() ), aOldDesc );
+                FireEvent( AccessibleEventId::NAME_CHANGED, uno::Any( getAccessibleName() ), aOldName );
+            }
+        }
+        catch( const uno::Exception& ) {} // optional behaviour
+    }
+
+
+    SvxEditSource& AccessibleImageBullet::GetEditSource() const
+    {
+
+        if( !mpEditSource )
+            throw uno::RuntimeException("No edit source, object is defunct",
+                                        uno::Reference< uno::XInterface >
+                                        ( static_cast< ::cppu::OWeakObject* >
+                                          ( const_cast< AccessibleImageBullet* > (this) ) ) );  // disambiguate hierarchy
+        return *mpEditSource;
+    }
+
+    SvxTextForwarder& AccessibleImageBullet::GetTextForwarder() const
+    {
+
+        SvxEditSource& rEditSource = GetEditSource();
+        SvxTextForwarder* pTextForwarder = rEditSource.GetTextForwarder();
+
+        if( !pTextForwarder )
+            throw uno::RuntimeException("Unable to fetch text forwarder, object is defunct",
+                                        uno::Reference< uno::XInterface >
+                                        ( static_cast< ::cppu::OWeakObject* >
+                                          ( const_cast< AccessibleImageBullet* > (this) ) ) );  // disambiguate hierarchy
+
+        if( !pTextForwarder->IsValid() )
+            throw uno::RuntimeException("Text forwarder is invalid, object is defunct",
+                                        uno::Reference< uno::XInterface >
+                                        ( static_cast< ::cppu::OWeakObject* >
+                                          ( const_cast< AccessibleImageBullet* > (this) ) ) );  // disambiguate hierarchy
+        return *pTextForwarder;
+    }
+
+    SvxViewForwarder& AccessibleImageBullet::GetViewForwarder() const
+    {
+
+        SvxEditSource& rEditSource = GetEditSource();
+        SvxViewForwarder* pViewForwarder = rEditSource.GetViewForwarder();
+
+        if( !pViewForwarder )
+        {
+            throw uno::RuntimeException("Unable to fetch view forwarder, object is defunct",
+                                        uno::Reference< uno::XInterface >
+                                        ( static_cast< ::cppu::OWeakObject* >
+                                          ( const_cast< AccessibleImageBullet* > (this) ) ) );  // disambiguate hierarchy
+        }
+
+        if( !pViewForwarder->IsValid() )
+            throw uno::RuntimeException("View forwarder is invalid, object is defunct",
+                                        uno::Reference< uno::XInterface >
+                                        ( static_cast< ::cppu::OWeakObject* >
+                                          ( const_cast< AccessibleImageBullet* > (this) )  ) ); // disambiguate hierarchy
+        return *pViewForwarder;
+    }
+
+
+} // end of namespace accessibility
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */