tdf#90890: hyperlink inside textbox is not exported after roundtrip.

Problem Description:
- Text box hyperlink is not exported after roundtrip.

XML Difference: in drawing1.xml
Original file:
<xdr:cNvPr id="2" name="TextBox 1">
    <a:hlinkClick xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" r:id="rId1" tooltip="text123"/>
</xdr:cNvPr>

After RT:
<xdr:cNvPr id="0" name="CustomShape 1"/>
<a:hlinkClick> is missing.

Change-Id: I01082de5d7d2e1a9323e84f54c97d5444cab13cd
Solution: Added support for hyperlink in text box.
Reviewed-on: https://gerrit.libreoffice.org/15555Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>

oox/source/export/shapes.cxx

@@ -419,10 +419,26 @@ ShapeExport& ShapeExport::WriteCustomShape( Reference< XShape > xShape )
     if (GetDocumentType() != DOCUMENT_DOCX)
     {
         pFS->startElementNS( mnXmlNamespace, XML_nvSpPr, FSEND );
-        pFS->singleElementNS( mnXmlNamespace, XML_cNvPr,
+        pFS->startElementNS( mnXmlNamespace, XML_cNvPr,
                 XML_id, I32S( GetNewShapeID( xShape ) ),
                 XML_name, IDS( CustomShape ),
                 FSEND );
+
+        if( GETA( URL ) )
+        {
+            OUString sURL;
+            mAny >>= sURL;
+                if( !sURL.isEmpty() ) {
+                    OUString sRelId = mpFB->addRelation( mpFS->getOutputStream(),
+                    "http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink",
+                    sURL, true );
+
+                    mpFS->singleElementNS( XML_a, XML_hlinkClick,
+                    FSNS( XML_r,XML_id ), USS( sRelId ),
+                    FSEND );
+                 }
+        }
+        pFS->endElementNS(mnXmlNamespace, XML_cNvPr);
         pFS->singleElementNS( mnXmlNamespace, XML_cNvSpPr, FSEND );
         WriteNonVisualProperties( xShape );
         pFS->endElementNS( mnXmlNamespace, XML_nvSpPr );

sc/qa/unit/subsequent_export-test.cxx

@@ -137,6 +137,7 @@ public:
 
     void testSupBookVirtualPath();
     void testSheetLocalRangeNameXLS();
+    void testSheetTextBoxHyperlink();
 
     CPPUNIT_TEST_SUITE(ScExportTest);
     CPPUNIT_TEST(test);
@@ -184,6 +185,7 @@ public:
     CPPUNIT_TEST(testLinkedGraphicRT);
     CPPUNIT_TEST(testImageWithSpecialID);
     CPPUNIT_TEST(testSheetLocalRangeNameXLS);
+    CPPUNIT_TEST(testSheetTextBoxHyperlink);
 
     CPPUNIT_TEST_SUITE_END();
 
@@ -209,7 +211,8 @@ void ScExportTest::registerNamespaces(xmlXPathContextPtr& pXmlXPathCtx)
         { BAD_CAST("office"), BAD_CAST("urn:oasis:names:tc:opendocument:xmlns:office:1.0") },
         { BAD_CAST("table"), BAD_CAST("urn:oasis:names:tc:opendocument:xmlns:table:1.0") },
         { BAD_CAST("text"), BAD_CAST("urn:oasis:names:tc:opendocument:xmlns:text:1.0") },
-        { BAD_CAST("xlink"), BAD_CAST("http://www.w3c.org/1999/xlink") }
+        { BAD_CAST("xlink"), BAD_CAST("http://www.w3c.org/1999/xlink") },
+        { BAD_CAST("xdr"), BAD_CAST("http://schemas.openxmlformats.org/drawingml/2006/spreadsheetDrawing") }
     };
     for(size_t i = 0; i < SAL_N_ELEMENTS(aNamespaces); ++i)
     {
@@ -2517,6 +2520,22 @@ void ScExportTest::testSheetLocalRangeNameXLS()
     xDocSh2->DoClose();
 }
 
+void ScExportTest::testSheetTextBoxHyperlink()
+{
+    ScDocShellRef xShell = loadDoc("textbox-hyperlink.", XLSX);
+    CPPUNIT_ASSERT(xShell.Is());
+
+    ScDocShellRef xDocSh = saveAndReload(&(*xShell), XLSX);
+    CPPUNIT_ASSERT(xDocSh.Is());
+
+    xmlDocPtr pDoc = XPathHelper::parseExport(&(*xDocSh), m_xSFactory, "xl/drawings/drawing1.xml", XLSX);
+    CPPUNIT_ASSERT(pDoc);
+
+    assertXPath(pDoc, "/xdr:wsDr[1]/xdr:twoCellAnchor[1]/xdr:sp[1]/xdr:nvSpPr[1]/xdr:cNvPr[1]/a:hlinkClick[1]", 1);
+
+    xDocSh->DoClose();
+}
+
 CPPUNIT_TEST_SUITE_REGISTRATION(ScExportTest);
 
 CPPUNIT_PLUGIN_IMPLEMENT();