Use Reference role for intra-documents targets by default and link for the external links

DEVSIX-8926

Autoported commit.
Original commit hash: [a7479b0dc]

Author: AnhelinaM

itext.tests/itext.html2pdf.tests/resources/itext/html2pdf/HtmlConverterPdfUA1UA2Test/cmp_backwardLinkUa2.pdf

@@ -24,8 +24,6 @@ You should have received a copy of the GNU Affero General Public License
 using iText.Html2pdf.Attach;
 using iText.Html2pdf.Attach.Util;
 using iText.Html2pdf.Html;
-using iText.Kernel.Pdf.Tagging;
-using iText.Layout.Element;
 using iText.Layout.Properties;
 using iText.StyledXmlParser.Node;
 using iText.StyledXmlParser.Resolver.Resource;
@@ -68,7 +66,6 @@ public override void ProcessEnd(IElementNode element, ProcessorContext context)
                         }
                     }
                 }
-                ((Div)GetElementResult()).GetAccessibilityProperties().SetRole(StandardRoles.LINK);
                 LinkHelper.ApplyLinkAnnotation(GetElementResult(), url, context, element);
             }
             if (GetElementResult() != null) {

itext.tests/itext.html2pdf.tests/resources/itext/html2pdf/HtmlConverterPdfUA1UA2Test/cmp_imageLinkUa2.pdf

@@ -25,7 +25,6 @@ You should have received a copy of the GNU Affero General Public License
 using iText.Html2pdf.Attach.Impl.Layout;
 using iText.Html2pdf.Attach.Util;
 using iText.Html2pdf.Html;
-using iText.Kernel.Pdf.Tagging;
 using iText.Layout;
 using iText.Layout.Element;
 using iText.Layout.Properties;
@@ -80,7 +79,6 @@ public override void ProcessEnd(IElementNode element, ProcessorContext context)
                     }
                     if (GetAllElements()[i] is IBlockElement) {
                         Div simulatedDiv = new Div();
-                        simulatedDiv.GetAccessibilityProperties().SetRole(StandardRoles.LINK);
                         Transform cssTransform = GetAllElements()[i].GetProperty<Transform>(Property.TRANSFORM);
                         if (cssTransform != null) {
                             GetAllElements()[i].DeleteOwnProperty(Property.TRANSFORM);

itext.tests/itext.html2pdf.tests/resources/itext/html2pdf/HtmlConverterPdfUA1UA2Test/cmp_linkWithPageBreakBeforeUa2.pdf

@@ -35,8 +35,8 @@ You should have received a copy of the GNU Affero General Public License
 using iText.Kernel.Pdf.Action;
 using iText.Kernel.Pdf.Annot;
 using iText.Kernel.Pdf.Tagging;
+using iText.Kernel.Pdf.Tagutils;
 using iText.Layout;
-using iText.Layout.Element;
 using iText.Layout.Properties;
 using iText.Layout.Tagging;
 using iText.StyledXmlParser.Node;
@@ -88,8 +88,15 @@ public static void ApplyLinkAnnotation(IPropertyContainer container, String url,
                 }
                 linkAnnotation.SetBorder(new PdfArray(new float[] { 0, 0, 0 }));
                 container.SetProperty(Property.LINK_ANNOTATION, linkAnnotation);
-                if (container is ILeafElement && container is IAccessibleElement) {
-                    ((IAccessibleElement)container).GetAccessibilityProperties().SetRole(StandardRoles.LINK);
+                if (container is IAccessibleElement) {
+                    AccessibilityProperties accessibilityProperties = ((IAccessibleElement)container).GetAccessibilityProperties
+                        ();
+                    String role = linkAnnotation.GetRoleBasedOnDestination(context.GetPdfDocument());
+                    if (StandardRoles.REFERENCE.Equals(role) && context.GetPdfDocument() != null && PdfVersion.PDF_2_0.CompareTo
+                        (context.GetPdfDocument().GetPdfVersion()) <= 0) {
+                        accessibilityProperties.SetNamespace(PdfNamespace.GetDefault(context.GetPdfDocument()));
+                    }
+                    accessibilityProperties.SetRole(role);
                 }
             }
         }

itext.tests/itext.html2pdf.tests/resources/itext/html2pdf/HtmlConverterPdfUA1UA2Test/cmp_simpleLinkUa2.pdf

@@ -1 +1 @@
-9fc82e16bf8bfec12e88f9f18f002dd981c7708b
+a7479b0dcccecf7da45e55db2c3f8a57b794bbce