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

@@ -7,6 +7,8 @@ import org.gcube.portlets.widgets.ckancontentmoderator.client.events.CheckBoxSel
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.CheckBoxSelectIemsEventHandler;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.ClickItemEvent;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.ClickItemEventHandler;
+import org.gcube.portlets.widgets.ckancontentmoderator.client.events.CloseAllTabsEvent;
+import org.gcube.portlets.widgets.ckancontentmoderator.client.events.CloseAllTabsEventHandler;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.ShowItemEvent;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.ShowItemEventHandler;
 import org.gcube.portlets.widgets.ckancontentmoderator.client.events.TableRangeViewChangedEvent;
@@ -43,7 +45,6 @@ public class CkanContentModeratorWidgetController {
 	private ContentModeratorToolbar toolbar;
 	private MainTabPanel mainTabPanel = new MainTabPanel();
 	private Boolean isContentModeratorEnabled = null;
-	private ContentModeratorPaginatedView paginatedView;
 	public final static HandlerManager eventBus = new HandlerManager(null);
 	private HomeView howeView;
 
@@ -119,6 +120,14 @@ public class CkanContentModeratorWidgetController {
 				howeView.setCheckedCheckboxSelectAll(false);
 			}
 		});
+		
+		eventBus.addHandler(CloseAllTabsEvent.TYPE, new CloseAllTabsEventHandler() {
+			
+			@Override
+			public void onClick(CloseAllTabsEvent closeAllTabsEvent) {
+				mainTabPanel.closeTabs();
+			}
+		});
 	}
 
 	/**

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/events/CloseAllTabsEvent.java

@@ -0,0 +1,45 @@
+package org.gcube.portlets.widgets.ckancontentmoderator.client.events;
+
+import com.google.gwt.event.shared.GwtEvent;
+
+
+
+// TODO: Auto-generated Javadoc
+/**
+ * The Class CloseAllTabsEvent.
+ *
+ * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
+ * 
+ * Jun 22, 2021
+ */
+public class CloseAllTabsEvent extends GwtEvent<CloseAllTabsEventHandler> {
+	public static Type<CloseAllTabsEventHandler> TYPE = new Type<CloseAllTabsEventHandler>();
+
+	/**
+	 * Instantiates a new close all tabs event.
+	 */
+	public CloseAllTabsEvent() {
+
+	}
+
+	/**
+	 * Gets the associated type.
+	 *
+	 * @return the associated type
+	 */
+	@Override
+	public Type<CloseAllTabsEventHandler> getAssociatedType() {
+		return TYPE;
+	}
+
+	/**
+	 * Dispatch.
+	 *
+	 * @param handler the handler
+	 */
+	@Override
+	protected void dispatch(CloseAllTabsEventHandler handler) {
+		handler.onClick(this);
+	}
+
+}

src/main/java/org/gcube/portlets/widgets/ckancontentmoderator/client/events/CloseAllTabsEventHandler.java

@@ -0,0 +1,21 @@
+package org.gcube.portlets.widgets.ckancontentmoderator.client.events;
+
+import com.google.gwt.event.shared.EventHandler;
+
+
+/**
+ * The Interface CloseAllTabsEventHandler.
+ *
+ * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
+ * 
+ *         Jun 22, 2021
+ */
+public interface CloseAllTabsEventHandler extends EventHandler {
+
+	/**
+	 * On click.
+	 *
+	 * @param closeAllTabsEvent the close all tabs event
+	 */
+	void onClick(CloseAllTabsEvent closeAllTabsEvent);
+}

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

@@ -1,6 +1,7 @@
 package org.gcube.portlets.widgets.ckancontentmoderator.client.ui;
 
 import org.gcube.datacatalogue.utillibrary.shared.ItemStatus;
+import org.gcube.portlets.widgets.ckancontentmoderator.client.events.CloseAllTabsEvent;
 
 import com.github.gwtbootstrap.client.ui.Dropdown;
 import com.github.gwtbootstrap.client.ui.NavLink;
@@ -23,12 +24,28 @@ public class ContentModeratorToolbar extends Composite {
 	@UiField
 	Dropdown dropdownSelectStatus;
 
+	@UiField
+	NavLink closeAllTabs;
+
 	private HandlerManager eventBus;
 
 	public ContentModeratorToolbar(HandlerManager eventBus) {
 		initWidget(uiBinder.createAndBindUi(this));
 		this.eventBus = eventBus;
 		fillItemStatusOptions();
+		bindEvents();
+	}
+
+	private void bindEvents() {
+		closeAllTabs.addClickHandler(new ClickHandler() {
+			
+			@Override
+			public void onClick(ClickEvent event) {
+				eventBus.fireEvent(new CloseAllTabsEvent());
+				
+			}
+		});
+		
 	}
 
 	private void fillItemStatusOptions() {

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

@@ -13,7 +13,7 @@
 			<b:Dropdown text="Select Items with status..."
 				ui:field="dropdownSelectStatus">
 			</b:Dropdown>
-			<b:NavLink>Close All Tabs
+			<b:NavLink ui:field="closeAllTabs">Close All Tabs
 			</b:NavLink>
 		</b:NavPills>
 	</g:HTMLPanel>

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

@@ -1,6 +1,7 @@
 package org.gcube.portlets.widgets.ckancontentmoderator.client.ui;
 
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
 
 import org.gcube.portlets.widgets.ckancontentmoderator.client.ui.util.UtilFunct;
@@ -18,6 +19,7 @@ import com.google.gwt.uibinder.client.UiField;
 import com.google.gwt.user.client.ui.Composite;
 import com.google.gwt.user.client.ui.Widget;
 
+// TODO: Auto-generated Javadoc
 /**
  * The Class MainTabPanel.
  *
@@ -71,7 +73,7 @@ public class MainTabPanel extends Composite {
 	 * @param w       the w
 	 * @return the tab
 	 */
-	public Tab addTab(String heading, Widget w){
+	public Tab addTab(String heading, Widget w) {
 		Tab tab = new Tab();
 		tab.setIcon(IconType.BOOK);
 		tab.addClickHandler(new ClickHandler() {
@@ -85,7 +87,7 @@ public class MainTabPanel extends Composite {
 		String shortTitle = UtilFunct.ellipsis(heading, 20, false);
 		tab.asWidget().setTitle(heading);
 		tab.setHeading(shortTitle);
-		if(w!=null)
+		if (w != null)
 			tab.add(w);
 
 		results.add(tab);
@@ -96,7 +98,7 @@ public class MainTabPanel extends Composite {
 
 			@Override
 			public void execute() {
-				mainTabPanel.selectTab(results.size()-1); //+1 because the first tab is "Home"
+				mainTabPanel.selectTab(results.size() - 1);
 
 			}
 		});
@@ -125,4 +127,26 @@ public class MainTabPanel extends Composite {
 		return results.size();
 	}
 
+	/**
+	 * Close tabs.
+	 */
+	public void closeTabs() {
+		int tabSize = results.size();
+		GWT.log("tab size is: " + tabSize);
+		for (int i = 1; i < tabSize; i++) {
+			//each remove shifts any subsequent elements to the left, so I'm removing always the first element
+			mainTabPanel.remove(1); 
+			results.remove(1);
+		}
+		//selecting Home Tab
+		selectTab(0);
+	}
+
+	private void selectTab(int tabIndex) {
+		if (tabIndex <= results.size()) {
+			mainTabPanel.selectTab(tabIndex);
+		}
+
+	}
+
 }