tdf#79329 DOCX import: fix missing outer table with floattable at cell start

The bug document has a normal table, then its C1 cell starts with a
nested table, which is floating. The problem is that converting the
nested table to a textframe invalidates the start text range of the C1
cell in the outer table we store, so the conversion of the outer table
from text to table fails.

This never worked, so to avoid the regression just don't convert inner
floating tables to textframes when they're anchored at the cell start.
A more general fix in the future can be addressing the actual
invalidation of the cell start/end text ranges, and then this specific
fix will not be necessary anymore.

Change-Id: I12cefa41977cf719b07b0fb3ef9ec423c17ef3b1
Reviewed-on: https://gerrit.libreoffice.org/30685
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>

sw/qa/extras/ooxmlexport/ooxmlexport9.cxx

@@ -110,6 +110,14 @@ DECLARE_OOXMLEXPORT_TEST(testTdf103573, "tdf103573.docx")
     CPPUNIT_ASSERT_EQUAL_MESSAGE("Not centered horizontally relatively to right page border", text::RelOrientation::PAGE_RIGHT, nValue);
 }
 
+DECLARE_OOXMLEXPORT_TEST(testTdf79329, "tdf79329.docx")
+{
+    uno::Reference<text::XTextTablesSupplier> xTablesSupplier(mxComponent, uno::UNO_QUERY);
+    uno::Reference<container::XIndexAccess> xTables(xTablesSupplier->getTextTables(), uno::UNO_QUERY);
+    // This was 1: only the inner, not the outer table was created.
+    CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(2), xTables->getCount());
+}
+
 CPPUNIT_PLUGIN_IMPLEMENT();
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

writerfilter/source/dmapper/DomainMapper.cxx

@@ -2535,6 +2535,11 @@ void DomainMapper::sprmWithProps( Sprm& rSprm, const PropertyMapPtr& rContext )
     break;
     case NS_ooxml::LN_tblStart:
     {
+        if (m_pImpl->hasTableManager())
+        {
+            bool bTableStartsAtCellStart = m_pImpl->m_nTableDepth > 0 && m_pImpl->m_nTableCellDepth > m_pImpl->m_nLastTableCellParagraphDepth + 1;
+            m_pImpl->getTableManager().setTableStartsAtCellStart(bTableStartsAtCellStart);
+        }
         /*
          * Hack for Importing Section Properties
          * LO is not able to import section properties if first element in the
@@ -2575,6 +2580,13 @@ void DomainMapper::sprmWithProps( Sprm& rSprm, const PropertyMapPtr& rContext )
     case NS_ooxml::LN_tblEnd:
         m_pImpl->m_nTableDepth--;
     break;
+    case NS_ooxml::LN_tcStart:
+        m_pImpl->m_nTableCellDepth++;
+    break;
+    case NS_ooxml::LN_tcEnd:
+        m_pImpl->m_nTableCellDepth--;
+        m_pImpl->m_nLastTableCellParagraphDepth = 0;
+    break;
     case NS_ooxml::LN_glow_glow:
     case NS_ooxml::LN_shadow_shadow:
     case NS_ooxml::LN_reflection_reflection:

writerfilter/source/dmapper/DomainMapperTableHandler.cxx

@@ -982,7 +982,7 @@ static void lcl_ApplyCellParaProps(uno::Reference<table::XCell> const& xCell,
     }
 }
 
-void DomainMapperTableHandler::endTable(unsigned int nestedTableLevel)
+void DomainMapperTableHandler::endTable(unsigned int nestedTableLevel, bool bTableStartsAtCellStart)
 {
 #ifdef DEBUG_WRITERFILTER
     TagLogger::getInstance().startElement("tablehandler.endTable");
@@ -1127,7 +1127,10 @@ void DomainMapperTableHandler::endTable(unsigned int nestedTableLevel)
             {
                 // m_xText points to the body text, get the current xText from m_rDMapper_Impl, in case e.g. we would be in a header.
                 uno::Reference<text::XTextAppendAndConvert> xTextAppendAndConvert(m_rDMapper_Impl.GetTopTextAppend(), uno::UNO_QUERY);
-                if (xTextAppendAndConvert.is())
+                // Only execute the conversion if the table is not anchored at
+                // the start of an outer table cell, that's not yet
+                // implemented.
+                if (xTextAppendAndConvert.is() && !bTableStartsAtCellStart)
                     xTextAppendAndConvert->convertToTextFrame(xStart, xEnd, comphelper::containerToSequence(aFrameProperties));
             }
         }

writerfilter/source/dmapper/DomainMapperTableHandler.hxx

@@ -94,7 +94,7 @@ public:
      */
     void startTable(unsigned int nDepth, const TablePropertyMapPtr& pProps);
     /// Handle end of table.
-    void endTable(unsigned int nestedTableLevel);
+    void endTable(unsigned int nestedTableLevel, bool bTableStartsAtCellStart);
     /**
        Handle start of row.
 

writerfilter/source/dmapper/DomainMapper_Impl.cxx

@@ -233,6 +233,8 @@ DomainMapper_Impl::DomainMapper_Impl(
         m_bIsNewDoc(!rMediaDesc.getUnpackedValueOrDefault("InsertMode", false)),
         m_bInTableStyleRunProps(false),
         m_nTableDepth(0),
+        m_nTableCellDepth(0),
+        m_nLastTableCellParagraphDepth(0),
         m_bHasFtnSep(false),
         m_bIgnoreNextPara(false),
         m_bIgnoreNextTab(false),
@@ -1034,6 +1036,7 @@ void DomainMapper_Impl::finishParagraph( const PropertyMapPtr& pPropertyMap )
     TagLogger::getInstance().startElement("finishParagraph");
 #endif
 
+    m_nLastTableCellParagraphDepth = m_nTableCellDepth;
     ParagraphPropertyMap* pParaContext = dynamic_cast< ParagraphPropertyMap* >( pPropertyMap.get() );
     if (m_aTextAppendStack.empty())
         return;

writerfilter/source/dmapper/DomainMapper_Impl.hxx

@@ -820,6 +820,10 @@ public:
      * inTbl SPRM or not).
      */
     sal_Int32 m_nTableDepth;
+    /// Raw table cell depth.
+    sal_Int32 m_nTableCellDepth;
+    /// Table cell depth of the last finished paragraph.
+    sal_Int32 m_nLastTableCellParagraphDepth;
 
     /// If the document has a footnote separator.
     bool m_bHasFtnSep;

writerfilter/source/dmapper/TableManager.cxx

@@ -314,7 +314,7 @@ void TableManager::resolveCurrentTable()
                 mpTableDataHandler->endRow();
             }
 
-            mpTableDataHandler->endTable(mTableDataStack.size() - 1);
+            mpTableDataHandler->endTable(mTableDataStack.size() - 1, m_bTableStartsAtCellStart);
         }
         catch (css::uno::Exception const& e)
         {
@@ -454,8 +454,14 @@ void TableManager::cellDepth(sal_uInt32 nDepth)
     mnTableDepthNew = nDepth;
 }
 
+void TableManager::setTableStartsAtCellStart(bool bTableStartsAtCellStart)
+{
+    m_bTableStartsAtCellStart = bTableStartsAtCellStart;
+}
+
 TableManager::TableManager()
-    : mnTableDepthNew(0), mnTableDepth(0), mbKeepUnfinishedRow(false)
+    : mnTableDepthNew(0), mnTableDepth(0), mbKeepUnfinishedRow(false),
+      m_bTableStartsAtCellStart(false)
 {
     setRowEnd(false);
     setInCell(false);

writerfilter/source/dmapper/TableManager.hxx

@@ -275,6 +275,8 @@ private:
     std::stack<TableData::Pointer_t> mTableDataStack;
     RowData::Pointer_t mpUnfinishedRow;
     bool mbKeepUnfinishedRow;
+    /// If this is a nested table, does it start at cell start?
+    bool m_bTableStartsAtCellStart;
 
     /**
        handler for resolveCurrentTable
@@ -476,6 +478,7 @@ public:
     bool isIgnore() const;
 
 
+    void setTableStartsAtCellStart(bool bTableStartsAtCellStart);
 };
 
 }

writerfilter/source/ooxml/OOXMLFastContextHandler.cxx

@@ -1306,6 +1306,17 @@ OOXMLFastContextHandlerTextTableCell::~OOXMLFastContextHandlerTextTableCell()
 
 void OOXMLFastContextHandlerTextTableCell::startCell()
 {
+    if (isForwardEvents())
+    {
+        OOXMLPropertySet * pProps = new OOXMLPropertySet;
+        {
+            OOXMLValue::Pointer_t pVal = OOXMLBooleanValue::Create(mnTableDepth > 0);
+            OOXMLProperty::Pointer_t pProp(new OOXMLProperty(NS_ooxml::LN_tcStart, pVal, OOXMLProperty::SPRM));
+            pProps->add(pProp);
+        }
+
+        mpStream->props(writerfilter::Reference<Properties>::Pointer_t(pProps));
+    }
 }
 
 void OOXMLFastContextHandlerTextTableCell::endCell()
@@ -1328,6 +1339,11 @@ void OOXMLFastContextHandlerTextTableCell::endCell()
             OOXMLProperty::Pointer_t pProp(new OOXMLProperty(NS_ooxml::LN_tblCell, pVal, OOXMLProperty::SPRM));
             pProps->add(pProp);
         }
+        {
+            OOXMLValue::Pointer_t pVal = OOXMLBooleanValue::Create(mnTableDepth > 0);
+            OOXMLProperty::Pointer_t pProp(new OOXMLProperty(NS_ooxml::LN_tcEnd, pVal, OOXMLProperty::SPRM));
+            pProps->add(pProp);
+        }
 
         mpStream->props(writerfilter::Reference<Properties>::Pointer_t(pProps));
     }

writerfilter/source/ooxml/OOXMLFastContextHandler.hxx

@@ -392,7 +392,7 @@ public:
 
     virtual std::string getType() const override { return "TextTableCell"; }
 
-    static void startCell();
+    void startCell();
     void endCell();
 };
 

writerfilter/source/ooxml/model.xml

@@ -40,6 +40,8 @@
   <token tokenid="ooxml:object"/>
   <token tokenid="ooxml:tblStart"/>
   <token tokenid="ooxml:tblEnd"/>
+  <token tokenid="ooxml:tcStart"/>
+  <token tokenid="ooxml:tcEnd"/>
 
   <!-- These are not directly generated from OOXML XML elements / attributes, need to clean them up in the future. -->
   <token tokenid="ooxml:tblDepth"/>