package my.vaadin.apptest;
import com.vaadin.ui.AbstractJavaScriptComponent;
import elemental.json.JsonObject;
import javax.servlet.annotation.WebServlet;
import com.vaadin.annotations.Theme;
import com.vaadin.annotations.VaadinServletConfiguration;
import com.vaadin.annotations.Widgetset;
import com.vaadin.server.VaadinRequest;
import com.vaadin.server.VaadinServlet;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.JavaScript;
import com.vaadin.ui.Label;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.client.ui.*;

@Theme("mytheme")
@Widgetset("my.vaadin.apptest.MyAppWidgetset")

public class MyUI extends UI {
    @Override
    protected void init(VaadinRequest vaadinRequest) {
        final VerticalLayout layout = new VerticalLayout();
        layout.addStyleName("myLayout");//add class to main div
        Label label = new Label("Hello Vaadin user. Use this application to upload files.");
       final Button button = new Button("Open popup");
        button.addStyleName("popupTriggerBtn");//add class to button
        layout.addComponents( label, button );
        layout.setMargin(true);
        layout.setSpacing(true);
        setContent(layout);
    }
	@WebServlet(urlPatterns = "/*", name = "MyUIServlet", asyncSupported = true)
    @VaadinServletConfiguration(ui = MyUI.class, productionMode = false)
    public static class MyUIServlet extends VaadinServlet {
    }

}