fix for IsPlausibleSingleWordSection checking wrong condition

Conflicts:
sw/qa/extras/ooxmlexport/ooxmlexport.cxx

Change-Id: I503e5944079b6c03413caea27ef940efbd44ced5
Reviewed-on: https://gerrit.libreoffice.org/5548
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

4 files changed, 59 insertions, 1 deletions

diff --git a/sw/qa/extras/ooxmlexport/data/fdo68418.docx b/sw/qa/extras/ooxmlexport/data/fdo68418.docx
new file mode 100644
index 000000000000..10b7c009c2a5
--- /dev/null
+++ b/sw/qa/extras/ooxmlexport/data/fdo68418.docx
diff --git a/sw/qa/extras/ooxmlexport/ooxmlexport.cxx b/sw/qa/extras/ooxmlexport/ooxmlexport.cxx
index 0f1e500e5ca6..b9c5ba77fd77 100644
--- a/sw/qa/extras/ooxmlexport/ooxmlexport.cxx
+++ b/sw/qa/extras/ooxmlexport/ooxmlexport.cxx
@@ -113,6 +113,7 @@ public:
     void testFdo67737();
     void testTransparentShadow();
     void testBnc834035();
+    void testFdo68418();
 
     CPPUNIT_TEST_SUITE(Test);
 #if !defined(MACOSX) && !defined(WNT)
@@ -202,6 +203,7 @@ void Test::run()
         {"fdo67737.docx", &Test::testFdo67737},
         {"transparent-shadow.docx", &Test::testTransparentShadow},
         {"bnc834035.odt", &Test::testBnc834035},
+        {"fdo68418.docx", &Test::testFdo68418},
     };
     // Don't test the first import of these, for some reason those tests fail
     const char* aBlacklist[] = {
@@ -1232,6 +1234,22 @@ void Test::testBnc834035()
     assertXPath(pXmlDoc, "/w:document/w:body/w:p/w:hyperlink", "anchor", "_Toc363553908");
 }
 
+void Test::testFdo68418()
+{
+    // The problem was that in 'MSWordExportBase::SectionProperties' function in 'wrt8sty.cxx'
+    // it checked if it 'IsPlausableSingleWordSection'.
+    // The 'IsPlausableSingleWordSection' compared different aspects of 2 'SwFrmFmt' objects.
+    // One of the checks was 'do both formats have the same distance from the top and bottom ?'
+    // This check is correct if both have headers or both don't have headers.
+    // However - if one has a header, and the other one has an empty header (no header) - it is not correct to compare
+    // between them (same goes for 'footer').
+    uno::Reference<text::XText> xFooterText = getProperty< uno::Reference<text::XText> >(getStyles("PageStyles")->getByName(DEFAULT_STYLE), "FooterText");
+    uno::Reference< text::XTextRange > xFooterParagraph = getParagraphOfText( 1, xFooterText );
+
+    // First page footer is empty, second page footer is 'aaaa'
+    CPPUNIT_ASSERT_EQUAL(OUString("aaaa"), xFooterParagraph->getString());        // I get an error that it expects ''
+}
+
 CPPUNIT_TEST_SUITE_REGISTRATION(Test);
 
 CPPUNIT_PLUGIN_IMPLEMENT();
diff --git a/sw/source/filter/ww8/writerwordglue.cxx b/sw/source/filter/ww8/writerwordglue.cxx
index 5e3215e7b3c0..18968d060bd6 100644
--- a/sw/source/filter/ww8/writerwordglue.cxx
+++ b/sw/source/filter/ww8/writerwordglue.cxx
@@ -371,7 +371,7 @@ namespace sw
                 HdFtDistanceGlue aOne(rTitleFmt.GetAttrSet());
                 HdFtDistanceGlue aTwo(rFollowFmt.GetAttrSet());
                 //e.g. #i14509#
-                if (!aOne.EqualTopBottom(aTwo))
+                if (!aOne.StrictEqualTopBottom(aTwo))
                     bPlausableSingleWordSection = false;
             }
             return bPlausableSingleWordSection;
@@ -424,6 +424,30 @@ namespace sw
             return (dyaTop == rOther.dyaTop && dyaBottom == rOther.dyaBottom);
         }
 
+        bool HdFtDistanceGlue::StrictEqualTopBottom(const HdFtDistanceGlue &rOther)
+            const
+        {
+            // Check top only if both object have a header or if
+            // both object don't have a header
+            if ( (  HasHeader() &&  rOther.HasHeader() ) ||
+                 ( !HasHeader() && !rOther.HasHeader() ) )
+            {
+                if (dyaTop != rOther.dyaTop)
+                    return false;
+            }
+
+            // Check bottom only if both object have a footer or if
+            // both object don't have a footer
+            if ( (  HasFooter() &&  rOther.HasFooter() ) ||
+                 ( !HasFooter() && !rOther.HasFooter() ) )
+            {
+                if (dyaBottom != rOther.dyaBottom)
+                    return false;
+            }
+
+            return true;
+        }
+
         ParaStyleMapper::ParaStyleMapper(SwDoc &rDoc)
             : mpImpl(new myImplHelpers::StyleMapperImpl<SwTxtFmtColl>(rDoc))
         {
diff --git a/sw/source/filter/ww8/writerwordglue.hxx b/sw/source/filter/ww8/writerwordglue.hxx
index 423eddba763d..263a13ebabca 100644
--- a/sw/source/filter/ww8/writerwordglue.hxx
+++ b/sw/source/filter/ww8/writerwordglue.hxx
@@ -146,6 +146,22 @@ namespace sw
             */
             bool EqualTopBottom(const HdFtDistanceGlue &rOther) const;
 
+            /** Is the top of the page the same in both objects
+                when there are headers\footers present or non-present in both objects
+
+                This test is important, because we would like to ignore cases
+                when there is a header in one object and no header in the second
+                object - because it is wrong to compare between them.
+
+                @param
+                rOther the other HdFtDistanceGlue to compare against
+
+                @return true if the main text areas top and bottom is at the
+                same location, false otherwise (assuming both objects have\don't have
+                a header\footer)
+            */
+            bool StrictEqualTopBottom(const HdFtDistanceGlue &rOther) const;
+
         };
     }
 }