vaadin-framework/uitest/src/main/java/com/vaadin/tests/components/window/SubwindowDraggability.java

package com.vaadin.tests.components.window;

import com.vaadin.tests.components.TestBase;
import com.vaadin.ui.Button;
import com.vaadin.ui.Window;

public class SubwindowDraggability extends TestBase {

    @Override
    protected void setup() {
        final Window draggableSubWindow = new Window("Draggable sub window");
        draggableSubWindow.setHeight("300px");
        final Window fixedSubWindow = new Window("Fixed sub window");
        fixedSubWindow.setHeight("200px");
        fixedSubWindow.setDraggable(false);

        fixedSubWindow.center();
        getMainWindow().addWindow(draggableSubWindow);
        getMainWindow().addWindow(fixedSubWindow);

        Button button = new Button("Swap", event -> {
            boolean draggable = draggableSubWindow.isDraggable();

            draggableSubWindow.setDraggable(!draggable);
            fixedSubWindow.setDraggable(draggable);
        });
        addComponent(button);
    }

    @Override
    protected String getDescription() {
        return "Two sub windows. One is draggable, the other one is fixed and cannot be moved by the user";
    }

    @Override
    protected Integer getTicketNumber() {
        return 3133;
    }

}