fdo#61193 fix crash on RTF paste of footnote

Regression from 232ad2f2.

Change-Id: Ia0873851979df5bba0a4693f044aab2aeff2b8e4

sw/qa/extras/rtfimport/data/fdo61193.rtf

+{\rtf1\ansi text.{\footnote footnote}}

sw/qa/extras/rtfimport/data/hello.rtf

+{\rtf1 Hello world!\par}

sw/qa/extras/rtfimport/rtfimport.cxx

@@ -150,6 +150,7 @@ public:
     void testFdo62288();
     void testFdo37716();
     void testFdo51916();
+    void testFdo61193();
 
     CPPUNIT_TEST_SUITE(Test);
 #if !defined(MACOSX) && !defined(WNT)
@@ -272,6 +273,7 @@ void Test::run()
         {"fdo62288.rtf", &Test::testFdo62288},
         {"fdo37716.rtf", &Test::testFdo37716},
         {"fdo51916.rtf", &Test::testFdo51916},
+        {"hello.rtf", &Test::testFdo61193},
     };
     header();
     for (unsigned int i = 0; i < SAL_N_ELEMENTS(aMethods); ++i)
@@ -926,6 +928,15 @@ void Test::testCopyPasteFootnote()
     CPPUNIT_ASSERT_EQUAL(OUString("bbb"), xTextRange->getString());
 }
 
+void Test::testFdo61193()
+{
+    // Pasting content that contained a footnote caused a crash.
+    uno::Reference<text::XTextDocument> xTextDocument(mxComponent, uno::UNO_QUERY);
+    uno::Reference<text::XTextRange> xText(xTextDocument->getText(), uno::UNO_QUERY);
+    uno::Reference<text::XTextRange> xEnd = xText->getEnd();
+    paste("fdo61193.rtf", xEnd);
+}
+
 void Test::testShptxtPard()
 {
     // The problem was that \pard inside \shptxt caused loss of shape text

writerfilter/source/dmapper/DomainMapper_Impl.cxx

@@ -722,6 +722,8 @@ void lcl_AddRangeAndStyle(
 void DomainMapper_Impl::CheckUnregisteredFrameConversion( )
 {
     PropertyNameSupplier& rPropNameSupplier = PropertyNameSupplier::GetPropertyNameSupplier();
+    if (m_aTextAppendStack.empty())
+        return;
     TextAppendContext& rAppendContext = m_aTextAppendStack.top();
     // n#779642: ignore fly frame inside table as it could lead to messy situations
     if( rAppendContext.pLastParagraphProperties.get() && rAppendContext.pLastParagraphProperties->IsFrameMode()
@@ -965,6 +967,8 @@ void DomainMapper_Impl::finishParagraph( PropertyMapPtr pPropertyMap )
 #endif
 
     ParagraphPropertyMap* pParaContext = dynamic_cast< ParagraphPropertyMap* >( pPropertyMap.get() );
+    if (!m_aTextAppendStack.size())
+        return;
     TextAppendContext& rAppendContext = m_aTextAppendStack.top();
     uno::Reference< text::XTextAppend >  xTextAppend;
     if (!m_aTextAppendStack.empty())
@@ -1449,14 +1453,14 @@ void DomainMapper_Impl::PushFootOrEndnote( bool bIsFootnote )
         }
         appendTextContent( uno::Reference< text::XTextContent >( xFootnoteText, uno::UNO_QUERY_THROW ), aFontProperties );
         m_aTextAppendStack.push(TextAppendContext(uno::Reference< text::XTextAppend >( xFootnoteText, uno::UNO_QUERY_THROW ),
-                    m_bIsNewDoc ? uno::Reference<text::XTextCursor>() : m_xBodyText->createTextCursorByRange(xFootnoteText->getStart())));
+                    m_bIsNewDoc ? uno::Reference<text::XTextCursor>() : xFootnoteText->createTextCursorByRange(xFootnoteText->getStart())));
 
         // Redlines for the footnote anchor
         CheckRedline( xFootnote->getAnchor( ) );
     }
-    catch( const uno::Exception& )
+    catch( const uno::Exception& e )
     {
-        OSL_FAIL( "exception in PushFootOrEndnote" );
+        SAL_WARN("writerfilter", "exception in PushFootOrEndnote: " << e.Message);
     }
 }