commit d804d22c229a9a08bd50c348a0e933b0138385bf
author Katarina Behrens <Katarina.Behrens@cib.de> Sun Dec 30 16:41:07 2018 +0000
committer Katarina Behrens <Katarina.Behrens@cib.de> Thu Jan 10 13:41:43 2019 +0100
tree bf7f76b5a0f59f53b3ada83dc66a787525a057ac
parent 4de638c14c0a74e29e213fd53cd01cad93285aa4

tdf#122056: catch DisposedException to avoid crash w/ screen reader

The repro scenario is closing a slideshow with screen reader on.
Some object are already disposed by the time [full-screen] win with
presentation closes

Change-Id: I7e2ae7a5b694daaf7355ef93d87a998c9f2e345a
Reviewed-on: https://gerrit.libreoffice.org/65931
Tested-by: Jenkins
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>

vcl/qt5/Qt5AccessibleWidget.cxx

diff --git a/vcl/qt5/Qt5AccessibleWidget.cxx b/vcl/qt5/Qt5AccessibleWidget.cxx
index c2c1fdc..efafab1 100644
--- a/vcl/qt5/Qt5AccessibleWidget.cxx
+++ b/vcl/qt5/Qt5AccessibleWidget.cxx
@@ -46,6 +46,7 @@
#include <com/sun/star/accessibility/XAccessibleValue.hpp>
#include <com/sun/star/awt/FontWeight.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/uno/Sequence.hxx>

#include <comphelper/AccessibleImplementationHelper.hxx>
@@ -662,8 +663,18 @@ QAccessibleInterface* Qt5AccessibleWidget::childAt(int x, int y) const
{
    if (!m_xAccessible.is())
        return nullptr;
    Reference<XAccessibleComponent> xAccessibleComponent(m_xAccessible->getAccessibleContext(),
                                                         UNO_QUERY);

    Reference<XAccessibleContext> xAc;
    try
    {
        xAc = m_xAccessible->getAccessibleContext();
    }
    catch (css::lang::DisposedException /*ex*/)
    {
        return nullptr;
    }

    Reference<XAccessibleComponent> xAccessibleComponent(xAc, UNO_QUERY);
    return QAccessible::queryAccessibleInterface(
        new Qt5XAccessible(xAccessibleComponent->getAccessibleAtPoint(awt::Point(x, y))));
}