[Libreoffice-commits] core.git: chart2/source

[Stephan Bergmann]

 chart2/source/controller/sidebar/ChartElementsPanel.cxx |    3 +++
 1 file changed, 3 insertions(+)

New commits:
commit 429e4dc671f03e0c4d50e8f8aa055f4aaca761da
Author: Stephan Bergmann <sbergman at redhat.com>
Date:   Fri Oct 21 18:00:03 2016 +0200

    Avoid further crash with empty Chart document
    
    following up on 8b5f8c26f007c8e67bc46b1b09340cae660d0b8b "Avoid crash with empty
    Chart document", when you then close the Writer doc (discarding the changes), it
    crashes in a chart::sidebar::ChartSidebarModifyListener::disposing call whose
    mpParent (that was a ChartElementsPanel) is already destroyed.  The problem is
    that the ChartElementsPanel ctor creates an mxListener pointing to this, then
    calls Initialize, which calls xBroadcaster->addModifyListener(mxListener) and
    then, during updateData, throws a RuntimeException when xDiagram is null in
    getChartType, causing the ChartElementsPanel object to immediately be destroyed,
    but the listener still registered.  This apparently needs fixing independently
    of the immediate problem.  (The immediate problem is a regression introduced
    with d7748842e96536daeb0c638c6f8d01d99b9a3e08 "hide grid and axes options in
    chart elements if not supported, tdf#94297".)
    
    Change-Id: I2fe4f2a59600664f6210456c65e033f9453f4cc9

diff --git a/chart2/source/controller/sidebar/ChartElementsPanel.cxx b/chart2/source/controller/sidebar/ChartElementsPanel.cxx
index 11e9956..c037fea 100644
--- a/chart2/source/controller/sidebar/ChartElementsPanel.cxx
+++ b/chart2/source/controller/sidebar/ChartElementsPanel.cxx
@@ -391,6 +391,9 @@ css::uno::Reference<css::chart2::XChartType> getChartType(const css::uno::Refere
 {
     css::uno::Reference<css::chart2::XChartDocument> xChartDoc(xModel, css::uno::UNO_QUERY_THROW);
     css::uno::Reference<chart2::XDiagram > xDiagram = xChartDoc->getFirstDiagram();
+    if (!xDiagram.is()) {
+        return css::uno::Reference<css::chart2::XChartType>();
+    }
 
     css::uno::Reference<css::chart2::XCoordinateSystemContainer > xCooSysContainer( xDiagram, css::uno::UNO_QUERY_THROW );