added redirecting on addMore Click VRE

git-svn-id: http://svn.research-infrastructures.eu/public/d4science/gcube/trunk/portlets/user/my-vres@131902 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlet/user/my_vres/client/widgets/ClickableVRE.java

@@ -46,6 +46,10 @@ public class ClickableVRE extends HTML {
 		
 		addClickHandler(new ClickHandler() {
 			public void onClick(ClickEvent event) {
+				String html =  "<div style=\"display: table; text-align:center; width: 100%; height: 75px;\">" +
+						"<span style=\"vertical-align:middle; display: table-cell;\">redirecting ...</span>" +
+						"</div>";
+				setHTML(html);
 				service.showMoreVREs(new AsyncCallback<String>() {
 					@Override
 					public void onFailure(Throwable caught) { }