SwXTextDocument::getTextSelection: fix missing non-string content handling

text/html works with this.

Change-Id: I749e0c987a87dbc6700956f564f6846617c393e8

sw/qa/extras/tiledrendering/tiledrendering.cxx

@@ -233,6 +233,9 @@ void SwTiledRenderingTest::testGetTextSelection()
     // Make sure that we selected text from the body text.
     CPPUNIT_ASSERT_EQUAL(OString("Hello"), pXTextDocument->getTextSelection("text/plain;charset=utf-8"));
 
+    // Make sure we produce something for HTML.
+    CPPUNIT_ASSERT(!OString(pXTextDocument->getTextSelection("text/html")).isEmpty());
+
     // Now select some shape text and check again.
     SdrPage* pPage = pWrtShell->GetDoc()->getIDocumentDrawModelAccess().GetDrawModel()->GetPage(0);
     SdrObject* pObject = pPage->GetObj(0);

sw/source/uibase/uno/unotxdoc.cxx

@@ -3310,6 +3310,12 @@ OString SwXTextDocument::getTextSelection(const char* pMimeType)
         else
             aRet = OString(reinterpret_cast<const sal_Char *>(aString.getStr()), aString.getLength() * sizeof(sal_Unicode));
     }
+    else
+    {
+        uno::Sequence<sal_Int8> aSequence;
+        aAny >>= aSequence;
+        aRet = OString(reinterpret_cast<sal_Char*>(aSequence.getArray()), aSequence.getLength());
+    }
 
     return aRet;
 }