tdf#76817 ooxmlexport: only use stylename for Outline list

In LibreOffice, the special, built-in, Outline numbering style
("Chapter Numbering") is connected via the paragraph style
to control the numbering.

Thus, only the ParaStyleName should be written to
the paragraph properties, and not the direct numbering properties.
Both MSO and LO get confused when there are multiple definitions
for outline numbering.

Change-Id: I1af54fdea164d68e5e156c256b478e518daa5e99
Reviewed-on: https://gerrit.libreoffice.org/47828Reviewed-by: Justin Luth <justin_luth@sil.org>
Tested-by: Justin Luth <justin_luth@sil.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>

sw/qa/extras/ooxmlexport/ooxmlexport.cxx

@@ -688,7 +688,7 @@ DECLARE_OOXMLEXPORT_TEST(testOOxmlOutlineNumberTypes, "outline-number-types.odt"
 
 DECLARE_OOXMLEXPORT_TEST(testNumParentStyle, "num-parent-style.docx")
 {
-    //CPPUNIT_ASSERT_EQUAL(OUString("Outline"), getProperty<OUString>(getParagraph(4), "NumberingStyleName"));
+    CPPUNIT_ASSERT_EQUAL(OUString("Outline"), getProperty<OUString>(getParagraph(4), "NumberingStyleName"));
 }
 
 DECLARE_OOXMLEXPORT_TEST(testNumOverrideLvltext, "num-override-lvltext.docx")

sw/source/filter/ww8/docxattributeoutput.cxx

@@ -7763,14 +7763,22 @@ void DocxAttributeOutput::ParaHyphenZone( const SvxHyphenZoneItem& rHyphenZone )
             FSEND );
 }
 
-void DocxAttributeOutput::ParaNumRule_Impl( const SwTextNode* /*pTextNd*/, sal_Int32 nLvl, sal_Int32 nNumId )
+void DocxAttributeOutput::ParaNumRule_Impl( const SwTextNode* pTextNd, sal_Int32 nLvl, sal_Int32 nNumId )
 {
     if ( USHRT_MAX != nNumId )
     {
-        m_pSerializer->startElementNS( XML_w, XML_numPr, FSEND );
-        m_pSerializer->singleElementNS( XML_w, XML_ilvl, FSNS( XML_w, XML_val ), OString::number( nLvl).getStr(), FSEND );
-        m_pSerializer->singleElementNS( XML_w, XML_numId, FSNS( XML_w, XML_val ), OString::number( nNumId).getStr(), FSEND );
-        m_pSerializer->endElementNS( XML_w, XML_numPr );
+        const sal_Int32 nTableSize = m_rExport.m_pUsedNumTable ? m_rExport.m_pUsedNumTable->size() : 0;
+        const SwNumRule* pRule = nNumId > 0 && nNumId <= nTableSize ? (*m_rExport.m_pUsedNumTable)[nNumId-1] : nullptr;
+        const bool bOutlineRule = pRule && pRule->IsOutlineRule();
+
+        // Do not export outline rules (Chapter Numbering) as paragraph properties, only as style properties.
+        if ( !pTextNd || !bOutlineRule )
+        {
+            m_pSerializer->startElementNS( XML_w, XML_numPr, FSEND );
+            m_pSerializer->singleElementNS( XML_w, XML_ilvl, FSNS( XML_w, XML_val ), OString::number( nLvl).getStr(), FSEND );
+            m_pSerializer->singleElementNS( XML_w, XML_numId, FSNS( XML_w, XML_val ), OString::number( nNumId).getStr(), FSEND );
+            m_pSerializer->endElementNS( XML_w, XML_numPr );
+        }
     }
 }