sw comments on frames: fix DOCX handling

We used to ignore annotation marks which just cover the comment anchor
since commit fff019debf14a0bf8cd358591a686191347f1542 (MSWordExportBase:
ignore empty annotation marks, 2014-09-17), but this means comments on
images are lost.

Pass around SwWW8AttrIter, so we can decide if we have a relevant
at-char anchored frame in MSWordExportBase::GetAnnotationMarks(),
without iterating over all frames in the document, which would be slow
for large documents.

Regarding the import side, the only problem was that the empty comment
range resulted in a loss of annotation marks; fix that by using a marker
while inserting.

Change-Id: I385677d74423bc05824dac4a12d1a991bb3983c4
Reviewed-on: https://gerrit.libreoffice.org/74996
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

1 files changed, 19 insertions, 0 deletions

diff --git a/writerfilter/source/dmapper/DomainMapper_Impl.cxx b/writerfilter/source/dmapper/DomainMapper_Impl.cxx
index 36174fa66cfb..21d6e65d1af3 100644
--- a/writerfilter/source/dmapper/DomainMapper_Impl.cxx
+++ b/writerfilter/source/dmapper/DomainMapper_Impl.cxx
@@ -58,6 +58,7 @@
 #include <com/sun/star/text/XRedline.hpp>
 #include <com/sun/star/text/XTextFieldsSupplier.hpp>
 #include <com/sun/star/text/RubyPosition.hpp>
+#include <com/sun/star/text/XTextRangeCompare.hpp>
 #include <com/sun/star/style/DropCapFormat.hpp>
 #include <com/sun/star/util/NumberFormatter.hpp>
 #include <com/sun/star/util/XNumberFormatsSupplier.hpp>
@@ -2233,12 +2234,30 @@ void DomainMapper_Impl::PopAnnotation()
             // Create a range that points to the annotation start/end.
             uno::Reference<text::XText> const xText = aAnnotationPosition.m_xStart->getText();
             uno::Reference<text::XTextCursor> const xCursor = xText->createTextCursorByRange(aAnnotationPosition.m_xStart);
+
+            bool bMarker = false;
+            uno::Reference<text::XTextRangeCompare> xTextRangeCompare(xText, uno::UNO_QUERY);
+            if (xTextRangeCompare->compareRegionStarts(aAnnotationPosition.m_xStart, aAnnotationPosition.m_xEnd) == 0)
+            {
+                // Insert a marker so that comment around an anchored image is not collapsed during
+                // insertion.
+                xText->insertString(xCursor, "x", false);
+                bMarker = true;
+            }
+
             xCursor->gotoRange(aAnnotationPosition.m_xEnd, true);
             uno::Reference<text::XTextRange> const xTextRange(xCursor, uno::UNO_QUERY_THROW);
 
             // Attach the annotation to the range.
             uno::Reference<text::XTextAppend> const xTextAppend = m_aTextAppendStack.top().xTextAppend;
             xTextAppend->insertTextContent(xTextRange, uno::Reference<text::XTextContent>(m_xAnnotationField, uno::UNO_QUERY_THROW), !xCursor->isCollapsed());
+
+            if (bMarker)
+            {
+                // Remove the marker.
+                xCursor->goLeft(1, true);
+                xCursor->setString(OUString());
+            }
         }
         m_aAnnotationPositions.erase( m_nAnnotationId );
     }