tdf#139500 svx: fix crash on changing table properties during active text edit

Regression from commit fdeb04f7c59cf8032fe17072ed779e70505cc6ab
(tdf#129961 svx: finish UI for table shadow as direct format,
2020-12-15), the problem was that the BegUndo() / EndUndo() pair can be
only used if we know that the text edit of a cell of a table shape is
not started or ended in-between.

The bugreport scenario was an active text edit, where setting attributes
on the shape ends the text edit:

    #9 0x7f6dbb417121 in SdrEditView::EndTextEditAllViews() const /svx/source/svdraw/svdedtv.cxx:1079:20
    #10 0x7f6dbb466798 in SdrEditView::SetAttrToMarked(SfxItemSet const&, bool) /svx/source/svdraw/svdedtv1.cxx:1095:9
    #11 0x7f6dbc34b0af in sdr::table::SvxTableController::SetAttrToSelectedShape(SfxItemSet const&) /svx/source/table/tablecontroller.cxx:2738:12

Which also means that the underlying edit engine is deleted. But then
undo/redo would still reference that edit engine:

==31830==ERROR: AddressSanitizer: heap-use-after-free on address 0x60c0001fc300 at pc 0x7f6dd73a9cb9 bp 0x7fff788db4b0 sp 0x7fff788db4a8
READ of size 8 at 0x60c0001fc300 thread T0
    #0 0x7f6dd73a9cb8 in EditUndo::GetComment() const /editeng/source/editeng/editundo.cxx:147:34

Fix the problem by not grouping in case there is an active text edit,
that's not something I considered when I added the original grouping.

(cherry picked from commit ece86ef173cbc070c76f180d02ac80c65e07fff9)

Change-Id: I4f3583e21a27f8380c35b3f4563ce496819bcb81
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/114929
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/svx/source/table/tablecontroller.cxx b/svx/source/table/tablecontroller.cxx
index 429b2e58da43..75c49f599e02 100644
--- a/svx/source/table/tablecontroller.cxx
+++ b/svx/source/table/tablecontroller.cxx
@@ -982,7 +982,7 @@ void SvxTableController::onFormatTable(const SfxRequest& rReq)
                 // Create a single undo action when applying the result of the dialog.
                 SdrTableObj& rTableObject(*mxTableObj);
                 SdrModel& rSdrModel(rTableObject.getSdrModelFromSdrObject());
-                bool bUndo = rSdrModel.IsUndoEnabled();
+                bool bUndo = rSdrModel.IsUndoEnabled() && !mrView.IsTextEdit();
                 if (bUndo)
                 {
                     rSdrModel.BegUndo(SvxResId(STR_TABLE_NUMFORMAT));