tdf#125522: Mail merge: Hidden text frames are not completely removed

Change-Id: I67550b325a0ac177ffbd52718234c2a0edf1154c
Reviewed-on: https://gerrit.libreoffice.org/73033
Tested-by: Jenkins
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

sw/qa/extras/mailmerge/mailmerge.cxx

@@ -933,6 +933,30 @@ DECLARE_SHELL_MAILMERGE_TEST(testTdf62364, "tdf62364.odt", "10-testing-addresses
     }
 }
 
+DECLARE_SHELL_MAILMERGE_TEST(tdf125522_shell, "tdf125522.odt", "10-testing-addresses.ods", "testing-addresses")
+{
+    // prepare unit test and run
+    executeMailMerge();
+
+    // reset currently opened layout of the original template,
+    // and create the layout of the document with 10 mails inside
+    dumpMMLayout();
+
+    // there should be no any text frame in output
+    SwXTextDocument* pTextDoc = dynamic_cast<SwXTextDocument *>(mxMMComponent.get());
+    CPPUNIT_ASSERT(pTextDoc);
+
+    const auto & rNodes = pTextDoc->GetDocShell()->GetDoc()->GetNodes();
+    for (sal_uLong nodeIndex = 0; nodeIndex<rNodes.Count(); nodeIndex++)
+    {
+        const SwNodePtr aNode = rNodes[nodeIndex];
+        if (aNode->StartOfSectionNode())
+        {
+            CPPUNIT_ASSERT(!aNode->StartOfSectionNode()->GetFlyFormat());
+        }
+    }
+}
+
 DECLARE_SHELL_MAILMERGE_TEST(testTd78611_shell, "tdf78611.odt", "10-testing-addresses.ods", "testing-addresses")
 {
     // prepare unit test and run

sw/source/core/doc/doc.cxx

@@ -1438,12 +1438,30 @@ bool SwDoc::RemoveInvisibleContent()
         if ( pTextNd )
         {
             bool bRemoved = false;
-            SwPaM aPam(*pTextNd, 0, *pTextNd, pTextNd->GetText().getLength());
             if ( pTextNd->HasHiddenCharAttribute( true ) )
             {
                 bRemoved = true;
                 bRet = true;
-                RemoveOrDeleteContents(pTextNd, getIDocumentContentOperations());
+
+                if (2 == pTextNd->EndOfSectionIndex() - pTextNd->StartOfSectionIndex())
+                {
+                    SwFrameFormat *const pFormat = pTextNd->StartOfSectionNode()->GetFlyFormat();
+                    if (nullptr != pFormat)
+                    {
+                        // remove hidden text frame
+                        getIDocumentLayoutAccess().DelLayoutFormat(pFormat);
+                    }
+                    else
+                    {
+                        // default, remove hidden paragraph
+                        RemoveOrDeleteContents(pTextNd, getIDocumentContentOperations());
+                    }
+                }
+                else
+                {
+                    // default, remove hidden paragraph
+                    RemoveOrDeleteContents(pTextNd, getIDocumentContentOperations());
+                }
             }
             else if ( pTextNd->HasHiddenCharAttribute( false ) )
             {
@@ -1455,7 +1473,11 @@ bool SwDoc::RemoveInvisibleContent()
             // Footnotes/Frames may have been removed, therefore we have
             // to reset n:
             if ( bRemoved )
-                n = aPam.GetPoint()->nNode.GetIndex();
+            {
+                // [n] has to be inside [0 .. GetNodes().Count()] range
+                if (n > GetNodes().Count())
+                    n = GetNodes().Count();
+            }
         }
     }