Added enable/disable versioning operation depending on selected items

git-svn-id: http://svn.d4science-ii.research-infrastructures.eu/gcube/trunk/portlets/user/workspace@144500 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlets/user/workspace/client/view/versioning/VersioningInfoContainer.java

@@ -349,9 +349,20 @@ public class VersioningInfoContainer extends LayoutContainer {
 			@Override
 			public void selectionChanged(SelectionChangedEvent<FileVersionModel> se) {
 
-				boolean selection = grid.getSelectionModel().getSelectedItems().size()>0;
+				List<FileVersionModel> selected = grid.getSelectionModel().getSelectedItems();
+				boolean selection = selected.size()>0;
 				activeButtonOnSelection(selection);
+
+				for (FileVersionModel fileVersionModel : selected) {
+					activeCurrentVersionOperation(!fileVersionModel.isCurrentVersion());
+				}
+
+				if(selected.size()>1)
+					activeDownloadOperation(false);
+
+
 			}
+
 		});
 
 		grid.getView().setAutoFill(true);
@@ -363,7 +374,28 @@ public class VersioningInfoContainer extends LayoutContainer {
 		grid.setStyleAttribute("borderTop", "none");
 		cp.add(grid);
 
+	}
+
+
 
+	/**
+	 * Active download operation.
+	 *
+	 * @param b the b
+	 */
+	private void activeDownloadOperation(boolean b) {
+		buttonDownload.setEnabled(b);
+	}
+
+
+	/**
+	 * Active current version operation.
+	 *
+	 * @param bool the bool
+	 */
+	private void activeCurrentVersionOperation(boolean bool){
+		buttonDelete.setEnabled(bool);
+		buttonRestore.setEnabled(bool);
 	}
 
 

src/main/java/org/gcube/portlets/user/workspace/client/view/versioning/WindowVersioning.java

@@ -165,7 +165,6 @@ public class WindowVersioning extends Window {
 	}
 
 
-
 	/**
 	 * Update versioning container.
 	 *