tdf#104967 prevent crash when pasting notes originating from a closed document

This is only a workaround to prevent a crash, the actual note content is lost
when pasting, only a standard empty note caption will be pasted.

Change-Id: Ifaef5d30cc2024f3d03d6b2b4f56c5ccfbb67142
(cherry picked from commit cb566c056b0e8f9f73dac3cbaf497e102a247cb9)
Reviewed-on: https://gerrit.libreoffice.org/33274
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/sc/source/core/data/documen2.cxx b/sc/source/core/data/documen2.cxx
index e5f4ffc4e15b..28e246813355 100644
--- a/sc/source/core/data/documen2.cxx
+++ b/sc/source/core/data/documen2.cxx
@@ -371,6 +371,21 @@ ScDocument::~ScDocument()
         pRefreshTimerControl = nullptr;
     }
 
+    if (IsClipboardSource())
+    {
+        // Notes copied to the clipboard have a raw SdrCaptionObj pointer
+        // copied from this document, forget it as it references this
+        // document's drawing layer pages and what not, which otherwise when
+        // pasting to another document after this document was destructed would
+        // attempt to access non-existing data.
+        /* XXX this is only a workaround to prevent a crash, the actual note
+         * content is lost, only a standard empty note caption will be pasted.
+         * TODO: come up with a solution. */
+        ScDocument* pClipDoc = ScModule::GetClipDoc();
+        if (pClipDoc)
+            pClipDoc->ForgetNoteCaptions( ScRangeList( ScRange( 0,0,0, MAXCOL, MAXROW, pClipDoc->GetTableCount()-1)));
+    }
+
     mxFormulaParserPool.reset();
     // Destroy the external ref mgr instance here because it has a timer
     // which needs to be stopped before the app closes.