Fix styling of Window control buttons to show focus (#10285)

Fixes #8918

1 files changed, 25 insertions, 0 deletions

diff --git a/uitest/src/main/java/com/vaadin/tests/themes/valo/WindowControlButtonFocus.java b/uitest/src/main/java/com/vaadin/tests/themes/valo/WindowControlButtonFocus.java
new file mode 100644
index 0000000000..ce30991be1
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/themes/valo/WindowControlButtonFocus.java
@@ -0,0 +1,25 @@
+package com.vaadin.tests.themes.valo;
+
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.ui.Label;
+import com.vaadin.ui.Window;
+
+public class WindowControlButtonFocus extends AbstractTestUI {
+    @Override
+    protected void setup(VaadinRequest request) {
+        Window window = new Window("Window", new Label());
+        window.center();
+        addWindow(window);
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        return 8918;
+    }
+
+    @Override
+    protected String getTestDescription() {
+        return "Window control buttons should have noticeable focus styles.";
+    }
+}