src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/CkanContentModeratorWidget.java

@@ -4,6 +4,7 @@ import org.gcube.datacatalogue.utillibrary.shared.ItemStatus;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.table.ItemsTable.DISPLAY_FIELD;
 
 import com.google.gwt.user.client.Command;
+import com.google.gwt.user.client.ui.ComplexPanel;
 import com.google.gwt.user.client.ui.Composite;
 
 /**
@@ -61,7 +62,7 @@ public class CkanContentModeratorWidget {
 	 *
 	 * @return the panel
 	 */
-	public Composite getPanel() {
+	public ComplexPanel getPanel() {
 		return cmsController.getMainPanel();
 	}
 }

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/CkanContentModeratorWidgetController.java

@@ -6,6 +6,7 @@ import org.gcube.portlets.widgets.ckancontentmoderator.client.events.ClickItemEv
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.CkanFramePanel;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.ContentModeratorPaginatedView;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.ContentModeratorSystemBaseView;
+import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.ContentModeratorToolbar;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.MainTabPanel;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.table.ItemsTable.DISPLAY_FIELD;
 import org.gcube.portlets.widgets.ckancontentmoderator.shared.CatalogueDataset;
@@ -14,11 +15,11 @@ import com.google.gwt.core.client.GWT;
 import com.google.gwt.event.shared.HandlerManager;
 import com.google.gwt.user.client.Command;
 import com.google.gwt.user.client.rpc.AsyncCallback;
-import com.google.gwt.user.client.ui.Anchor;
+import com.google.gwt.user.client.ui.ComplexPanel;
 import com.google.gwt.user.client.ui.Composite;
-import com.google.gwt.user.client.ui.Frame;
+import com.google.gwt.user.client.ui.FlowPanel;
+import com.google.gwt.user.client.ui.VerticalPanel;
 
-// TODO: Auto-generated Javadoc
 /**
  * The Class CkanContentModeratorWidget.
  *
@@ -31,8 +32,11 @@ public class CkanContentModeratorWidgetController {
 	public final static CkanContentModeratorServiceAsync contentModeratorService = GWT
 			.create(CkanContentModeratorService.class);
 	
+	private FlowPanel mainPanel = new FlowPanel();
+
 //	private ItemsTable<CatalogueDataset> itemsTable;
 	private ContentModeratorSystemBaseView cmsPanel = new ContentModeratorSystemBaseView();
+	private ContentModeratorToolbar toolbar;
 	private MainTabPanel mainTabPanel = new MainTabPanel();
 	private Boolean isContentModeratorEnabled = null;
 	private ContentModeratorPaginatedView paginatedView;
@@ -51,11 +55,15 @@ public class CkanContentModeratorWidgetController {
 //		itemsTable.initTable(null, null, new ListDataProvider<CatalogueDataset>());
 //		cmsPanel.add(itemsTable.getCellTable());
 
+		toolbar = new ContentModeratorToolbar(eventBus);
 		paginatedView = new ContentModeratorPaginatedView(eventBus, status, displayFields, sortByField);
 		// cmsPanel.addToTop(new LoadingPanel(new HTML("Loading...")));
+		//cmsPanel.addToTop(toolbar);
 		cmsPanel.addToCenter(paginatedView.getCellPanel());
 		cmsPanel.addToBottom(paginatedView.getPagerPanel());
 		mainTabPanel.addHomeWidget(cmsPanel.getPanel());
+		mainPanel.add(toolbar);
+		mainPanel.add(mainTabPanel);
 		bindEvents();
 	}
 
@@ -129,8 +137,8 @@ public class CkanContentModeratorWidgetController {
 	 *
 	 * @return the main panel
 	 */
-	public Composite getMainPanel() {
+	public ComplexPanel getMainPanel() {
-		return mainTabPanel;
+		return mainPanel;
 	}
 
 }

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/ContentModeratorToolbar.java

@@ -0,0 +1,52 @@
+package org.gcube.portlets.widgets.ckancontentmoderator.client.ui;
+
+import org.gcube.datacatalogue.utillibrary.shared.ItemStatus;
+
+import com.github.gwtbootstrap.client.ui.Dropdown;
+import com.github.gwtbootstrap.client.ui.NavLink;
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.dom.client.ClickHandler;
+import com.google.gwt.event.shared.HandlerManager;
+import com.google.gwt.uibinder.client.UiBinder;
+import com.google.gwt.uibinder.client.UiField;
+import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.Widget;
+
+public class ContentModeratorToolbar extends Composite {
+
+	private static ContentModeratorToolbarUiBinder uiBinder = GWT.create(ContentModeratorToolbarUiBinder.class);
+
+	interface ContentModeratorToolbarUiBinder extends UiBinder<Widget, ContentModeratorToolbar> {
+	}
+
+	@UiField
+	Dropdown dropdownSelectStatus;
+
+	private HandlerManager eventBus;
+
+	public ContentModeratorToolbar(HandlerManager eventBus) {
+		initWidget(uiBinder.createAndBindUi(this));
+		this.eventBus = eventBus;
+		fillItemStatusOptions();
+	}
+
+	private void fillItemStatusOptions() {
+		for (ItemStatus status : ItemStatus.values()) {
+
+			NavLink link = new NavLink();
+			link.setText(status.getLabel());
+			link.addClickHandler(new ClickHandler() {
+
+				@Override
+				public void onClick(ClickEvent event) {
+					// TODO Auto-generated method stub
+
+				}
+			});
+			dropdownSelectStatus.add(link);
+		}
+
+	}
+
+}

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/ContentModeratorToolbar.ui.xml

@@ -0,0 +1,20 @@
+<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
+<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
+	xmlns:g="urn:import:com.google.gwt.user.client.ui"
+	xmlns:b="urn:import:com.github.gwtbootstrap.client.ui">
+
+	<ui:style>
+	.important {
+		font-weight: bold;
+	}
+	</ui:style>
+	<g:HTMLPanel>
+		<b:NavPills>
+			<b:Dropdown text="Select Items with status..."
+				ui:field="dropdownSelectStatus">
+			</b:Dropdown>
+			<b:NavLink>Close All Tabs
+			</b:NavLink>
+		</b:NavPills>
+	</g:HTMLPanel>
+</ui:UiBinder> 

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/SelectionItem.java

@@ -1,24 +0,0 @@
-/**
- *
- */
-package org.gcube.portlets.widgets.ckancontentmoderator.client.ui;
-
-
-
-/**
- * The Interface SelectionItem.
- *
- * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
- * Apr 28, 2016
- */
-public interface SelectionItem {
-
-	/**
-	 * Gets the selected item.
-	 *
-	 * @param <T> the generic type
-	 * @return the selected item
-	 */
-	<T> T getSelectedItem();
-
-}

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/SelectionItems.java

@@ -0,0 +1,25 @@
+/**
+ *
+ */
+package org.gcube.portlets.widgets.ckancontentmoderator.client.ui;
+
+import java.util.List;
+
+/**
+ * The Interface SelectionItems.
+ *
+ * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
+ * 
+ * Jun 18, 2021
+ */
+public interface SelectionItems {
+	
+	/**
+	 * Gets the selected items.
+	 *
+	 * @param <T> the generic type
+	 * @return the selected items
+	 */
+	<T> List<T> getSelectedItems();
+
+}

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/table/AbstractItemsCellTable.java

@@ -1,6 +1,7 @@
 package org.gcube.portlets.widgets.ckancontentmoderator.client.ui.table;
 
 import java.util.List;
+import java.util.Set;
 
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.ClickItemEvent;
 
@@ -21,11 +22,15 @@ import com.google.gwt.user.client.ui.MenuBar;
 import com.google.gwt.user.client.ui.MenuItem;
 import com.google.gwt.view.client.AbstractDataProvider;
 import com.google.gwt.view.client.AsyncDataProvider;
+import com.google.gwt.view.client.DefaultSelectionEventManager;
 import com.google.gwt.view.client.ListDataProvider;
+import com.google.gwt.view.client.MultiSelectionModel;
 import com.google.gwt.view.client.SelectionChangeEvent;
 import com.google.gwt.view.client.SelectionChangeEvent.Handler;
+import com.google.gwt.view.client.SelectionModel;
 import com.google.gwt.view.client.SingleSelectionModel;
 
+
 /**
  * The Class AbstractItemsCellTable.
  *
@@ -37,7 +42,7 @@ public abstract class AbstractItemsCellTable<T> {
 	protected SortedCellTable<T> sortedCellTable;
 	protected T itemContextMenu = null;
 	protected boolean fireEventOnClick = true;
-	protected SingleSelectionModel<T> ssm;
+	protected SelectionModel<T> theSelectionModel;
 	protected HandlerManager eventBus;
 
 	/**
@@ -53,37 +58,46 @@ public abstract class AbstractItemsCellTable<T> {
 	/**
 	 * Inits the abstract table.
 	 *
-	 * @param eventBus     the event bus
+	 * @param eventBus       the event bus
-	 * @param fireOnClick  the fire on click
+	 * @param fireOnClick    the fire on click
-	 * @param dataProvider the data provider
+	 * @param dataProvider   the data provider
-	 * @param pageSize     the page size
+	 * @param selectionModel the selection model
+	 * @param pageSize       the page size
 	 */
 	protected void initAbstractTable(HandlerManager eventBus, boolean fireOnClick, AbstractDataProvider<T> dataProvider,
-			int pageSize) {
+			SelectionModel<T> selectionModel, int pageSize) {
 		this.eventBus = eventBus;
 		this.fireEventOnClick = fireOnClick;
+		this.theSelectionModel = selectionModel;
 		sortedCellTable = new SortedCellTable<T>(pageSize, dataProvider);
 		sortedCellTable.addStyleName("table-cms-widget");
-//		cellTable.getElement().getStyle().setOverflow(Overflow.HIDDEN);
 		sortedCellTable.addStyleName("table-cms-widget-vertical-middle");
 		sortedCellTable.setStriped(true);
 		sortedCellTable.setCondensed(true);
 		sortedCellTable.setWidth("100%", true);
 //		dataProvider.addDataDisplay(sortedCellTable);
 //		initTable(cellTable, null, null);
-		sortedCellTable.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.ENABLED);
+		//sortedCellTable.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.ENABLED);
 
-		ssm = new SingleSelectionModel<T>();
+		DefaultSelectionEventManager<T> checkBoxManager = DefaultSelectionEventManager.<T> createCheckboxManager();
-		sortedCellTable.setSelectionModel(ssm);
+		sortedCellTable.setSelectionModel(theSelectionModel,checkBoxManager);
-		ssm.addSelectionChangeHandler(new Handler() {
+
+		theSelectionModel.addSelectionChangeHandler(new Handler() {
 			@Override
 			public void onSelectionChange(final SelectionChangeEvent event) {
-				final T selectedObject = ssm.getSelectedObject();
+
-				if (selectedObject != null) {
+				if (theSelectionModel instanceof SingleSelectionModel) {
-					GWT.log("Clicked: " + selectedObject);
+					SingleSelectionModel<T> ssm = (SingleSelectionModel<T>) theSelectionModel;
-//			        selectedItem(selectedObject);
+					final T selectedObject = ssm.getSelectedObject();
-					if (fireEventOnClick)
+					if (selectedObject != null) {
-						AbstractItemsCellTable.this.eventBus.fireEvent(new ClickItemEvent<T>(selectedObject));
+						GWT.log("Clicked: " + selectedObject);
+//				        selectedItem(selectedObject);
+						if (fireEventOnClick)
+							AbstractItemsCellTable.this.eventBus.fireEvent(new ClickItemEvent<T>(selectedObject));
+					}
+				}else if (theSelectionModel instanceof MultiSelectionModel) {
+					Set<T> selected = ((MultiSelectionModel<T>) theSelectionModel).getSelectedSet();
+					GWT.log("Selected are:" +selected);
 				} 
 			}
 		});
@@ -92,12 +106,16 @@ public abstract class AbstractItemsCellTable<T> {
 
 			@Override
 			public void onDoubleClick(final DoubleClickEvent event) {
-				T selected = ssm.getSelectedObject();
+				if (theSelectionModel instanceof SingleSelectionModel) {
-				if (selected != null) {
+					SingleSelectionModel<T> ssm = (SingleSelectionModel<T>) theSelectionModel;
-					GWT.log("Double Click: " + selected);
+					T selected = ssm.getSelectedObject();
-					// AbstractItemsCellTable.this.eventBus.fireEvent(new
+					if (selected != null) {
-					// org.gcube.portlets.widgets.wsexplorer.client.event.LoadFolderEvent<T>(selected));
+						GWT.log("Double Click: " + selected);
+						// AbstractItemsCellTable.this.eventBus.fireEvent(new
+						// org.gcube.portlets.widgets.wsexplorer.client.event.LoadFolderEvent<T>(selected));
+					}
 				}
+
 			}
 		}, DoubleClickEvent.getType());
 
@@ -137,14 +155,13 @@ public abstract class AbstractItemsCellTable<T> {
 	public void updateItems(List<T> items, boolean removeOldItems) {
 
 		if (removeOldItems) {
-//			dataProvider.getList().clear();
+			if (theSelectionModel instanceof SingleSelectionModel) {
-			ssm.clear();
+				((SingleSelectionModel<T>) theSelectionModel).clear();
+			} else if (theSelectionModel instanceof MultiSelectionModel) {
+				((MultiSelectionModel<T>) theSelectionModel).clear();
+			}
 		}
-
 		sortedCellTable.setList(items);
-//		dataProvider.flush();
-//		dataProvider.refresh();
-
 		sortedCellTable.setPageSize(items.size() + 1);
 		sortedCellTable.redraw();
 	}
@@ -169,6 +186,8 @@ public abstract class AbstractItemsCellTable<T> {
 	}
 
 	/**
+	 * Sets the fire event on click.
+	 *
 	 * @param fireEventOnClick the fireEventOnClick to set
 	 */
 	public void setFireEventOnClick(boolean fireEventOnClick) {

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/table/ItemsTable.java

@@ -3,20 +3,24 @@
  */
 package org.gcube.portlets.widgets.ckancontentmoderator.client.ui.table;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.Date;
 import java.util.List;
+import java.util.Set;
 
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ContentModeratorWidgetConstants;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.resources.ContentModeratorWidgetResources;
-import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.SelectionItem;
+import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.SelectionItems;
 import org.gcube.portlets.widgets.ckancontentmoderator.shared.CatalogueDataset;
 
 import com.github.gwtbootstrap.client.ui.Pagination;
 import com.google.gwt.cell.client.ButtonCell;
+import com.google.gwt.cell.client.CheckboxCell;
 import com.google.gwt.cell.client.DateCell;
 import com.google.gwt.core.shared.GWT;
+import com.google.gwt.dom.client.Style.Unit;
 import com.google.gwt.event.shared.HandlerManager;
 import com.google.gwt.i18n.client.DateTimeFormat;
 import com.google.gwt.resources.client.ImageResource;
@@ -32,19 +36,19 @@ import com.google.gwt.user.client.ui.Image;
 import com.google.gwt.user.client.ui.Label;
 import com.google.gwt.view.client.AbstractDataProvider;
 import com.google.gwt.view.client.ListDataProvider;
-
+import com.google.gwt.view.client.MultiSelectionModel;
+import com.google.gwt.view.client.SingleSelectionModel;
 
 /**
  * The Class ItemsTable.
  *
  * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
  * 
- * Jun 15, 2021
+ *         Jun 15, 2021
  * @param <T> the generic type
  */
-public class ItemsTable<T extends CatalogueDataset> extends AbstractItemsCellTable<T> implements SelectionItem {
+public class ItemsTable<T extends CatalogueDataset> extends AbstractItemsCellTable<T> implements SelectionItems {
 
-	// private Column<T, ImageResource> icon;
 	private TextColumn<T> type;
 	private TextColumn<T> name;
 	private TextColumn<T> title;
@@ -60,26 +64,22 @@ public class ItemsTable<T extends CatalogueDataset> extends AbstractItemsCellTab
 	 * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it Feb 1, 2016
 	 */
 	public static enum DISPLAY_FIELD {
-		TYPE, NAME, TITLE, AUTHOR, CREATED
+		NAME, TITLE, AUTHOR, CREATED, TYPE
 	};
 
 	private List<DISPLAY_FIELD> displayFields;
 	private Column<T, Date> dateColumn;
-	// private List<String> displayProperties;
-	// private boolean showGcubeItemsInfo;
 	private DISPLAY_FIELD startSortByColumn;
 	private boolean isAsyncronusTable;
 
-
 	/**
 	 * Instantiates a new items table.
 	 *
-	 * @param eventBus the event bus
+	 * @param eventBus          the event bus
-	 * @param fields the fields
+	 * @param fields            the fields
 	 * @param startSortByColumn the start sort by column
 	 */
-	public ItemsTable(HandlerManager eventBus, DISPLAY_FIELD[] fields,
+	public ItemsTable(HandlerManager eventBus, DISPLAY_FIELD[] fields, DISPLAY_FIELD startSortByColumn) {
-			DISPLAY_FIELD startSortByColumn) {
 		this.eventBus = eventBus;
 		this.startSortByColumn = startSortByColumn;
 		setDisplayFields(fields);
@@ -118,72 +118,29 @@ public class ItemsTable<T extends CatalogueDataset> extends AbstractItemsCellTab
 	 * @param pagination   the pagination
 	 * @param dataProvider the data provider
 	 */
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see org.gcube.portlets.admin.gcubereleases.client.view.AbstractPackageTable#
-	 * initTable(com.google.gwt.user.cellview.client.AbstractCellTable,
-	 * com.google.gwt.user.cellview.client.SimplePager,
-	 * com.github.gwtbootstrap.client.ui.Pagination)
-	 */
 	@Override
 	public void initTable(final SimplePager pager, final Pagination pagination, AbstractDataProvider<T> dataProvider) {
 		this.dataProvider = dataProvider;
-		initAbstractTable(eventBus, fireEventOnClick, dataProvider, ContentModeratorWidgetConstants.ITEMS_PER_PAGE);
+		this.theSelectionModel = new MultiSelectionModel<T>();
+		initAbstractTable(eventBus, fireEventOnClick, dataProvider, theSelectionModel,
+				ContentModeratorWidgetConstants.ITEMS_PER_PAGE);
 		this.dataProvider.addDataDisplay(sortedCellTable);
 
-		// this.isAsyncronusTable = dataProvider instanceof
-		// AbstractDataProvider?true:false;
 		this.isAsyncronusTable = dataProvider instanceof ListDataProvider ? false : true;
-
-		// sortedCellTable.setEmptyTableWidget(new
-		// Label(WorkspaceExplorerConstants.WORKSPACE_FOLDER_EMPTY_MESSAGE));
 		setEmptyTableMessage(ContentModeratorWidgetConstants.NO_DATA);
 
-		if (this.displayFields.contains(DISPLAY_FIELD.TYPE)) {
+		// Checkbox column. This table will uses a checkbox column for selection.
-
+		// Alternatively, you can call cellTable.setSelectionEnabled(true) to enable
-			// NAME
+		// mouse selection.
-			type = new TextColumn<T>() {
+		Column<T, Boolean> checkColumn = new Column<T, Boolean>(new CheckboxCell(true, false)) {
-				@Override
+			@Override
-				public String getValue(T object) {
+			public Boolean getValue(T object) {
-					if (object == null)
+				// Get the value from the selection model.
-						return "";
+				return theSelectionModel.isSelected(object);
-
-					String type = ((CatalogueDataset) object).getType();
-
-					if (type == null)
-						return "";
-					return type;
-				}
-
-				// ADDING TOOLTIP
-				@Override
-				public void render(com.google.gwt.cell.client.Cell.Context context, T object, SafeHtmlBuilder sb) {
-					if (object == null)
-						return;
-					String type = ((CatalogueDataset) object).getType();
-					if (type == null)
-						type = "";
-					sb.appendHtmlConstant("<div title=\"" + type + "\">");
-					super.render(context, object, sb);
-					sb.appendHtmlConstant("</div>");
-				};
-			};
-
-			sortedCellTable.addColumn(type, "Type", true);
-
-			if (!isAsyncronusTable) {
-				Comparator<T> c = new Comparator<T>() {
-					@Override
-					public int compare(T o1, T o2) {
-						return ((CatalogueDataset) o1).getType().compareTo(((CatalogueDataset) o2).getType());
-					}
-				};
-
-				sortedCellTable.setComparator(type, c);
 			}
-
+		};
-		}
+		sortedCellTable.addColumn(checkColumn, "", false);
+		sortedCellTable.setColumnWidth(checkColumn, 40, Unit.PX);
 
 		if (this.displayFields.contains(DISPLAY_FIELD.NAME)) {
 
@@ -315,6 +272,55 @@ public class ItemsTable<T extends CatalogueDataset> extends AbstractItemsCellTab
 
 		}
 
+		if (this.displayFields.contains(DISPLAY_FIELD.TYPE)) {
+
+			// NAME
+			type = new TextColumn<T>() {
+				@Override
+				public String getValue(T object) {
+					if (object == null)
+						return "";
+
+					String type = ((CatalogueDataset) object).getExtra_SystemType();
+
+					if (type == null)
+						return "";
+					return type;
+				}
+
+				// ADDING TOOLTIP
+				@Override
+				public void render(com.google.gwt.cell.client.Cell.Context context, T object, SafeHtmlBuilder sb) {
+					if (object == null)
+						return;
+					String type = ((CatalogueDataset) object).getExtra_SystemType();
+					if (type == null)
+						type = "";
+					sb.appendHtmlConstant("<div title=\"" + type + "\">");
+					super.render(context, object, sb);
+					sb.appendHtmlConstant("</div>");
+				};
+			};
+
+			sortedCellTable.addColumn(type, "Type", true);
+
+			if (!isAsyncronusTable) {
+				Comparator<T> c = new Comparator<T>() {
+					@Override
+					public int compare(T o1, T o2) {
+						if (o1 == null || o1.getExtra_SystemType() == null)
+							return -1;
+
+						if (o2 == null || o2.getExtra_SystemType() == null)
+							return 1;
+						return ((CatalogueDataset) o1).getExtra_SystemType().compareTo(((CatalogueDataset) o2).getExtra_SystemType());
+					}
+				};
+
+				sortedCellTable.setComparator(type, c);
+			}
+
+		}
 
 		GWT.log("startSortByColumn: " + startSortByColumn);
 
@@ -335,6 +341,11 @@ public class ItemsTable<T extends CatalogueDataset> extends AbstractItemsCellTab
 					sortedCellTable.setInitialSortColumn(author);
 				}
 				break;
+			case TYPE:
+				if (this.displayFields.contains(DISPLAY_FIELD.TYPE)) {
+					sortedCellTable.setInitialSortColumn(type);
+				}
+				break;
 			case CREATED:
 				if (this.displayFields.contains(DISPLAY_FIELD.CREATED)) {
 					sortedCellTable.setDefaultSortOrder(dateColumn, false); // sorts ascending on first click
@@ -346,7 +357,6 @@ public class ItemsTable<T extends CatalogueDataset> extends AbstractItemsCellTab
 				break;
 			}
 
-
 		/*
 		 * final SingleSelectionModel<Item> selectionModel = new
 		 * SingleSelectionModel<Item>(); selectionModel.addSelectionChangeHandler(new
@@ -450,8 +460,21 @@ public class ItemsTable<T extends CatalogueDataset> extends AbstractItemsCellTab
 	 * SelectionItemHandler#getSelectionItem()
 	 */
 	@Override
-	public T getSelectedItem() {
+	public List<T> getSelectedItems() {
-		return ssm.getSelectedObject();
+		if (theSelectionModel instanceof SingleSelectionModel) {
+			T selected = ((SingleSelectionModel<T>) theSelectionModel).getSelectedObject();
+			if (selected != null) {
+				return Arrays.asList(selected);
+			}
+
+		} else if (theSelectionModel instanceof MultiSelectionModel) {
+			Set<T> selected = ((MultiSelectionModel<T>) theSelectionModel).getSelectedSet();
+			if (selected != null) {
+				return new ArrayList<T>(selected);
+			}
+		}
+
+		return null;
 	}
 
 	/**

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/ui/table/SortedCellTable.java

@@ -68,7 +68,7 @@ public class SortedCellTable<T> extends CellTable<T> {
 	 * @param dataProv the data prov
 	 */
 	public SortedCellTable(int pageSize, AbstractDataProvider<T> dataProv) {
-		super(1,CellTableResources.INSTANCE);
+		super(pageSize,CellTableResources.INSTANCE);
 		this.dataProvider = dataProv;
 
 		if(this.dataProvider instanceof ListDataProvider){

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/server/CatalogueBeansConverter.java

@@ -1,5 +1,6 @@
 package org.gcube.portlets.widgets.ckancontentmoderator.server;
 
+import java.util.Map;
 import java.util.function.Function;
 
 import org.gcube.datacatalogue.utillibrary.shared.jackan.model.CkanDataset;
@@ -26,7 +27,16 @@ public class CatalogueBeansConverter {
 			myDataset.setAuthorEmail(t.getAuthorEmail());
 			
 			//is it needed??
-			myDataset.setD4ScienceItemURL(null);
+			myDataset.setExtra_ItemURL(null);
+			
+			System.out.println("Extras: "+t.getExtrasAsHashMap());
+			Map<String, String> extrasMap = t.getExtrasAsHashMap();
+			if(extrasMap!=null) {
+				String type = extrasMap.get("system:type");
+				myDataset.setExtra_SystemType(type);
+				String itemURL = extrasMap.get("Item URL");
+				myDataset.setExtra_ItemURL(itemURL);
+			}
 			
 			myDataset.setId(t.getId());
 			myDataset.setLicenseId(t.getLicenseId());
@@ -36,7 +46,7 @@ public class CatalogueBeansConverter {
 			myDataset.setNotes(t.getNotes());
 			myDataset.setOwnerOrg(t.getOwnerOrg());
 			myDataset.setTitle(t.getTitle());
-			myDataset.setType(t.getType());
+			
 			//here is always null
 			myDataset.setUrl(t.getUrl());
 			myDataset.setCreated(t.getMetadataCreated().getTime());

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/shared/CatalogueDataset.java

@@ -6,7 +6,6 @@ import org.gcube.datacatalogue.utillibrary.shared.ItemStatus;
 
 import com.google.gwt.user.client.rpc.IsSerializable;
 
-
 /**
  * The Class CatalogueDataset.
  *
@@ -31,10 +30,10 @@ public class CatalogueDataset implements Serializable, IsSerializable {
 	private String ownerOrg;
 	private ItemStatus status;
 	private String title;
-	private String type;
 	private String url;
 	private String version;
-	private String d4scienceItemURL;
+	private String extra_ItemURL;
+	private String extra_SystemType;
 	private long created;
 
 	/**
@@ -87,10 +86,6 @@ public class CatalogueDataset implements Serializable, IsSerializable {
 		return title;
 	}
 
-	public String getType() {
-		return type;
-	}
-
 	public String getUrl() {
 		return url;
 	}
@@ -100,7 +95,7 @@ public class CatalogueDataset implements Serializable, IsSerializable {
 	}
 
 	public String getD4scienceItemURL() {
-		return d4scienceItemURL;
+		return extra_ItemURL;
 	}
 
 	public long getCreated() {
@@ -151,10 +146,6 @@ public class CatalogueDataset implements Serializable, IsSerializable {
 		this.title = title;
 	}
 
-	public void setType(String type) {
-		this.type = type;
-	}
-
 	public void setUrl(String url) {
 		this.url = url;
 	}
@@ -163,14 +154,26 @@ public class CatalogueDataset implements Serializable, IsSerializable {
 		this.version = version;
 	}
 
-	public void setD4ScienceItemURL(String d4scienceItemURL) {
-		this.d4scienceItemURL = d4scienceItemURL;
-	}
-
 	public void setCreated(long created) {
 		this.created = created;
 	}
 
+	public String getExtra_ItemURL() {
+		return extra_ItemURL;
+	}
+
+	public void setExtra_ItemURL(String extra_ItemURL) {
+		this.extra_ItemURL = extra_ItemURL;
+	}
+
+	public String getExtra_SystemType() {
+		return extra_SystemType;
+	}
+
+	public void setExtra_SystemType(String extra_SystemType) {
+		this.extra_SystemType = extra_SystemType;
+	}
+
 	@Override
 	public String toString() {
 		StringBuilder builder = new StringBuilder();
@@ -196,14 +199,14 @@ public class CatalogueDataset implements Serializable, IsSerializable {
 		builder.append(status);
 		builder.append(", title=");
 		builder.append(title);
-		builder.append(", type=");
-		builder.append(type);
 		builder.append(", url=");
 		builder.append(url);
 		builder.append(", version=");
 		builder.append(version);
-		builder.append(", d4scienceItemURL=");
+		builder.append(", extra_ItemURL=");
-		builder.append(d4scienceItemURL);
+		builder.append(extra_ItemURL);
+		builder.append(", extra_SystemType=");
+		builder.append(extra_SystemType);
 		builder.append(", created=");
 		builder.append(created);
 		builder.append("]");