Added an option to show a footer notification (#1504)

* Added an option to show a footer notification

Signed-off-by: Denislav Prinov <denislav.prinov@bosch.com>

* Refactoring

Signed-off-by: Denislav Prinov <denislav.prinov@bosch.com>

---------

Signed-off-by: Denislav Prinov <denislav.prinov@bosch.com>

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/AbstractHawkbitUI.java

@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.ui;
 
+import com.vaadin.shared.ui.ContentMode;
 import org.eclipse.hawkbit.ui.components.NotificationUnreadButton;
 import org.eclipse.hawkbit.ui.error.ErrorView;
 import org.eclipse.hawkbit.ui.menu.DashboardEvent.PostViewChangeEvent;
@@ -25,6 +26,7 @@ import org.slf4j.LoggerFactory;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationListener;
 import org.springframework.context.support.AbstractApplicationContext;
+import org.springframework.util.ObjectUtils;
 import org.vaadin.spring.events.EventBus.UIEventBus;
 
 import com.vaadin.annotations.Theme;
@@ -156,6 +158,11 @@ public abstract class AbstractHawkbitUI extends UI implements DetachListener {
         contentVerticalLayout.addComponent(content);
         contentVerticalLayout.setExpandRatio(content, 1.0F);
 
+        String footerNotification = uiProperties.getNotification().getText();
+        if (!ObjectUtils.isEmpty(footerNotification)) {
+            contentVerticalLayout.addComponent(buildFooterNotification(footerNotification));
+        }
+
         rootLayout.addComponent(dashboardMenu);
         rootLayout.addComponent(contentVerticalLayout);
         rootLayout.setExpandRatio(contentVerticalLayout, 1.0F);
@@ -194,6 +201,14 @@ public abstract class AbstractHawkbitUI extends UI implements DetachListener {
         LOG.debug("Current locale of the application is : {}", getLocale());
     }
 
+    private static Component buildFooterNotification(String text) {
+        Label notification = new Label();
+        notification.setValue(text);
+        notification.setWidth("100%");
+        notification.setContentMode(ContentMode.HTML);
+        return notification;
+    }
+
     private static Panel buildContent() {
         final Panel content = new Panel();
         content.setSizeFull();

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/UiProperties.java

@@ -37,6 +37,8 @@ public class UiProperties implements Serializable {
 
     private final Event event = new Event();
 
+    private final Notification notification = new Notification();
+
     /**
      * @return True if menu item has gravatar else false
      */
@@ -578,6 +580,18 @@ public class UiProperties implements Serializable {
         }
     }
 
+    public static class Notification implements Serializable {
+        private String text = "";
+
+        public String getText() {
+            return text;
+        }
+
+        public void setText(final String text) {
+            this.text = text;
+        }
+    }
+
     /**
      * @return Demo account details
      */
@@ -606,4 +620,8 @@ public class UiProperties implements Serializable {
         return localization;
     }
 
+    public Notification getNotification() {
+        return notification;
+    }
+
 }