Fixes #282

Author: AB-xdev

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 4.0.1
+* Added shortcut method ``invokeSelfReturn`` #282
+* Updated dependencies
+
 ## 4.0.0
 ⚠️<i>This release contains breaking changes</i>
 

vaadin-maps-leaflet-flow-demo/src/main/java/software/xdev/vaadin/maps/leaflet/flow/demo/ComplexDemo.java

@@ -11,6 +11,7 @@
 import com.vaadin.flow.component.dialog.Dialog;
 import com.vaadin.flow.component.icon.Icon;
 import com.vaadin.flow.component.icon.VaadinIcon;
+import com.vaadin.flow.component.notification.Notification;
 import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
 import com.vaadin.flow.router.Route;
 
@@ -184,6 +185,7 @@ public ComplexDemo()
 		this.addImageOverlayDemo();
 		this.addVideoOverlayDemo();
 		this.addComplexPolygonDemo();
+		this.addRetrieveClientSideDataDemo();
 
 		this.addOpenDialogOverMapDemo();
 	}
@@ -363,6 +365,17 @@ private void addComplexPolygonDemo()
 		));
 	}
 
+	private void addRetrieveClientSideDataDemo()
+	{
+		// Note: Usage is not recommended as clientside data can be manipulated
+		this.hlButtons.add(
+			new Button(
+				"Get bounds",
+				ev -> this.map.invokeSelfReturn(".getBounds()")
+					.then(v -> Notification.show(v.toJson())))
+		);
+	}
+	
 	private void addOpenDialogOverMapDemo()
 	{
 		this.hlButtons.add(

vaadin-maps-leaflet-flow/src/main/java/software/xdev/vaadin/maps/leaflet/base/LComponent.java

@@ -36,6 +36,14 @@ default PendingJavaScriptResult invokeSelf(final String payload, final Serializa
 		return this.componentRegistry().execJs(this.clientComponentJsAccessor() + payload, params);
 	}
 
+	/**
+	 * @apiNote Usage is not recommended as clientside data can be manipulated
+	 */
+	default PendingJavaScriptResult invokeSelfReturn(final String payload, final Serializable... params)
+	{
+		return this.componentRegistry().execJs("return " + this.clientComponentJsAccessor() + payload, params);
+	}
+	
 	@SuppressWarnings("unchecked")
 	default S self()
 	{