related tdf#123636 writerfilter: split newline also if PAGE_BREAK

...but only with old MSWord compat flag SplitPgBreakAndParaMark.

All of the other cases (COLUMN_BREAK and non-empty runs) split
the paragraph, so why not here?  This document shows it is needed,
but only for SplitPgBreakAndParaMark documents.

Note: Word 2003 doesn't display "modern" docx well in this regard.
It adds extra paragraphs where it shouldn't. There are already
example unit tests that ensure that extra paragraphs aren't written
for SplitPgBreakAndParaMark == false.

The actual bug's document is not related to the compatibility flag.
That will be handled in separate commit.

Change-Id: I27399780c909663f9a2b21974a5b385bea67f9ec
Reviewed-on: https://gerrit.libreoffice.org/70835
Tested-by: Jenkins
Reviewed-by: Justin Luth <justin_luth@sil.org>
diff --git a/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak.docx b/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak.docx
new file mode 100644
index 0000000..6f7b4b1
--- /dev/null
+++ b/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak.docx
Binary files differ
diff --git a/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak2.docx b/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak2.docx
new file mode 100644
index 0000000..30698c4
--- /dev/null
+++ b/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak2.docx
Binary files differ
diff --git a/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak3.docx b/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak3.docx
new file mode 100644
index 0000000..1bcc335
--- /dev/null
+++ b/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak3.docx
Binary files differ
diff --git a/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak4.docx b/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak4.docx
new file mode 100644
index 0000000..3a9d86e
--- /dev/null
+++ b/sw/qa/extras/ooxmlexport/data/tdf123636_newlinePageBreak4.docx
Binary files differ
diff --git a/sw/qa/extras/ooxmlexport/ooxmlexport13.cxx b/sw/qa/extras/ooxmlexport/ooxmlexport13.cxx
index 86b7e69..41c04f5 100644
--- a/sw/qa/extras/ooxmlexport/ooxmlexport13.cxx
+++ b/sw/qa/extras/ooxmlexport/ooxmlexport13.cxx
@@ -75,6 +75,43 @@
    CPPUNIT_ASSERT_EQUAL_MESSAGE("Section Left Margin", sal_Int32(0), getProperty<sal_Int32>(xSect, "SectionLeftMargin"));
}

DECLARE_OOXMLEXPORT_TEST(testTdf123636_newlinePageBreak, "tdf123636_newlinePageBreak.docx")
{
    //MS Compatibility flag: SplitPgBreakAndParaMark
    //special case: split first empty paragraph in a section.
    CPPUNIT_ASSERT_EQUAL_MESSAGE( "Number of Paragraphs", 2, getParagraphs() );
    CPPUNIT_ASSERT_EQUAL_MESSAGE( "Number of Pages", 2, getPages() );
}

DECLARE_OOXMLEXPORT_TEST(testTdf123636_newlinePageBreak2, "tdf123636_newlinePageBreak2.docx")
{
    //WITHOUT SplitPgBreakAndParaMark: a following anchored shape should force a page break
    //CPPUNIT_ASSERT_EQUAL_MESSAGE( "Number of Paragraphs", 2, getParagraphs() );
    //CPPUNIT_ASSERT_EQUAL_MESSAGE( "Number of Pages", 2, getPages() );
}

DECLARE_OOXMLEXPORT_TEST(testTdf123636_newlinePageBreak3, "tdf123636_newlinePageBreak3.docx")
{
    //MS Compatibility flag: SplitPgBreakAndParaMark
    //proof case: split any non-empty paragraphs, not just the first paragraph of a section.
    CPPUNIT_ASSERT_EQUAL_MESSAGE( "Number of Paragraphs", 5, getParagraphs() );
    CPPUNIT_ASSERT_EQUAL_MESSAGE( "Number of Pages", 2, getPages() );

    xmlDocPtr pDump = parseLayoutDump();
    assertXPath(pDump, "/root/page[1]/body/txt[3]", "Last line on page 1");
}

DECLARE_OOXMLEXPORT_TEST(testTdf123636_newlinePageBreak4, "tdf123636_newlinePageBreak4.docx")
{
    //MS Compatibility flag: SplitPgBreakAndParaMark
    //special case: an empty paragraph doesn't split (except if first paragraph).
    CPPUNIT_ASSERT_EQUAL_MESSAGE( "Number of Paragraphs", 3, getParagraphs() );
    CPPUNIT_ASSERT_EQUAL_MESSAGE( "Number of Pages", 2, getPages() );

    xmlDocPtr pDump = parseLayoutDump();
    assertXPath(pDump, "/root/page[2]/body/txt[1]", "");
}

DECLARE_OOXMLEXPORT_TEST(tdf123912_protectedForm, "tdf123912_protectedForm.odt")
{
    SwXTextDocument* pTextDoc = dynamic_cast<SwXTextDocument *>(mxComponent.get());
diff --git a/sw/qa/extras/ooxmlexport/ooxmlexport6.cxx b/sw/qa/extras/ooxmlexport/ooxmlexport6.cxx
index 3a546a80..2a2a82d 100644
--- a/sw/qa/extras/ooxmlexport/ooxmlexport6.cxx
+++ b/sw/qa/extras/ooxmlexport/ooxmlexport6.cxx
@@ -937,6 +937,8 @@
    sal_Int32 nX = getXPath(pXmlDoc, "/w:document/w:body/w:p[2]/w:r[1]/mc:AlternateContent[1]/mc:Choice[1]/w:drawing[1]/wp:anchor[1]/wp:extent", "cx").toInt32();
    // This was negative.
    CPPUNIT_ASSERT(nX >= 0);

    CPPUNIT_ASSERT_EQUAL_MESSAGE( "Number of Pages", 2, getPages() );
}

// part of tdf#93676, word gives the frame in the exported .docx a huge height,
diff --git a/writerfilter/source/dmapper/DomainMapper.cxx b/writerfilter/source/dmapper/DomainMapper.cxx
index 41cc8afd..1a9be31 100644
--- a/writerfilter/source/dmapper/DomainMapper.cxx
+++ b/writerfilter/source/dmapper/DomainMapper.cxx
@@ -3294,6 +3294,13 @@
                {
                    if (m_pImpl->GetSettingsTable()->GetSplitPgBreakAndParaMark())
                    {
                        if ( m_pImpl->GetIsFirstParagraphInSection() || !m_pImpl->IsFirstRun() )
                        {
                            m_pImpl->m_bIsSplitPara = true;
                            m_pImpl->finishParagraph( m_pImpl->GetTopContextOfType(CONTEXT_PARAGRAPH) );
                            lcl_startParagraphGroup();
                        }

                        pContext->Insert(PROP_BREAK_TYPE, uno::makeAny(style::BreakType_PAGE_BEFORE));
                        m_pImpl->clearDeferredBreaks();
                    }