tdf#135217 DOCX import: remove no longer needed top/bottom margin sync

Regression from commit b7ae863efeb082816cc4fe660527a9650d90e186
(tdf#117503 DOCX import: fix out of sync first/later top margin,
2018-05-28), which adjusted the import so that the export can pair
first/follow page styles and write them into a single Word section.

But changing the import for pairing purposes is not a good idea after
all, as it also affects the layout of the imported document.

In the meantime, commit 51534ac2b9747975945acb6a1e1ba5cc6d73f5c2
(tdf#127778 DOCX import: fix unexpected heading on non-first page when
the first page has a heading, 2020-05-11) already fixed the export side,
so this is not even necessary, just remove it.

(cherry picked from commit 29993781ac991e85bfbd61f9e076c9d8088cd3ab)

Change-Id: I94c02517ae1e0804547f81c43bb5890327d32376
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/107400
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

3 files changed, 24 insertions, 9 deletions

diff --git a/writerfilter/qa/cppunittests/dmapper/PropertyMap.cxx b/writerfilter/qa/cppunittests/dmapper/PropertyMap.cxx
index 71b3ab80e50b..2c7586649c01 100644
--- a/writerfilter/qa/cppunittests/dmapper/PropertyMap.cxx
+++ b/writerfilter/qa/cppunittests/dmapper/PropertyMap.cxx
@@ -13,6 +13,8 @@
 #include <com/sun/star/frame/Desktop.hpp>
 #include <com/sun/star/text/XPageCursor.hpp>
 #include <com/sun/star/text/XTextViewCursorSupplier.hpp>
+#include <com/sun/star/style/XStyleFamiliesSupplier.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
 
 using namespace ::com::sun::star;
 
@@ -63,6 +65,28 @@ CPPUNIT_TEST_FIXTURE(Test, testFloatingTableHeader)
     // i.e. a document which is 1 page in Word was imported as a 3 page one.
     CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int16>(1), xCursor->getPage());
 }
+
+CPPUNIT_TEST_FIXTURE(Test, testFollowPageTopMargin)
+{
+    // Load a document with 2 pages: first page has larger top margin, second page has smaller top
+    // margin.
+    OUString aURL = m_directories.getURLFromSrc(DATA_DIRECTORY) + "follow-page-top-margin.docx";
+    getComponent() = loadFromDesktop(aURL);
+    uno::Reference<style::XStyleFamiliesSupplier> xStyleFamiliesSupplier(getComponent(),
+                                                                         uno::UNO_QUERY);
+    uno::Reference<container::XNameAccess> xStyleFamilies
+        = xStyleFamiliesSupplier->getStyleFamilies();
+    uno::Reference<container::XNameAccess> xStyleFamily(xStyleFamilies->getByName("PageStyles"),
+                                                        uno::UNO_QUERY);
+    uno::Reference<beans::XPropertySet> xStyle(xStyleFamily->getByName("Standard"), uno::UNO_QUERY);
+    auto nTopMargin = xStyle->getPropertyValue("TopMargin").get<sal_Int32>();
+
+    // Without the accompanying fix in place, this test would have failed with:
+    // - Expected: 250
+    // - Actual  : 1249
+    // i.e. the top margin on page 2 was too large.
+    CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(250), nTopMargin);
+}
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/writerfilter/qa/cppunittests/dmapper/data/follow-page-top-margin.docx b/writerfilter/qa/cppunittests/dmapper/data/follow-page-top-margin.docx
new file mode 100644
index 000000000000..ceae0b784e18
--- /dev/null
+++ b/writerfilter/qa/cppunittests/dmapper/data/follow-page-top-margin.docx
diff --git a/writerfilter/source/dmapper/PropertyMap.cxx b/writerfilter/source/dmapper/PropertyMap.cxx
index acdcede9d6f9..b7457fa418b7 100644
--- a/writerfilter/source/dmapper/PropertyMap.cxx
+++ b/writerfilter/source/dmapper/PropertyMap.cxx
@@ -1037,15 +1037,6 @@ void SectionPropertyMap::PrepareHeaderFooterProperties( bool bFirstPage )
     //now set the top/bottom margin for the follow page style
     Insert( PROP_TOP_MARGIN, uno::makeAny( std::max<sal_Int32>(nTopMargin, 0) ) );
     Insert( PROP_BOTTOM_MARGIN, uno::makeAny( std::max<sal_Int32>(nBottomMargin, 0) ) );
-
-    if (bCopyFirstToFollow)
-    {
-        if (HasHeader(/*bFirstPage=*/true))
-            m_aFollowPageStyle->setPropertyValue("TopMargin", getProperty(PROP_TOP_MARGIN)->second);
-        if (HasFooter(/*bFirstPage=*/true))
-            m_aFollowPageStyle->setPropertyValue("BottomMargin",
-                                                 getProperty(PROP_BOTTOM_MARGIN)->second);
-    }
 }
 
 static uno::Reference< beans::XPropertySet > lcl_GetRangeProperties( bool bIsFirstSection,