From 611a15a2c796ac05e81850a52f881507ec6bd899 Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Thu, 26 Mar 2026 12:30:24 -0300
Subject: [PATCH] fix: register VaadinServiceInitListener to bundle grid styles

Close #171
---
 .../GridHelperServiceInitListener.java        | 46 +++++++++++++++++++
 ...adin.flow.server.VaadinServiceInitListener |  1 +
 2 files changed, 47 insertions(+)
 create mode 100644 src/main/java/com/flowingcode/vaadin/addons/gridhelpers/GridHelperServiceInitListener.java
 create mode 100644 src/main/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener

diff --git a/src/main/java/com/flowingcode/vaadin/addons/gridhelpers/GridHelperServiceInitListener.java b/src/main/java/com/flowingcode/vaadin/addons/gridhelpers/GridHelperServiceInitListener.java
new file mode 100644
index 0000000..25f3be4
--- /dev/null
+++ b/src/main/java/com/flowingcode/vaadin/addons/gridhelpers/GridHelperServiceInitListener.java
@@ -0,0 +1,46 @@
+/*-
+ * #%L
+ * Grid Helpers Add-on
+ * %%
+ * Copyright (C) 2022 - 2026 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+
+package com.flowingcode.vaadin.addons.gridhelpers;
+
+import com.vaadin.flow.component.dependency.CssImport;
+import com.vaadin.flow.server.ServiceInitEvent;
+import com.vaadin.flow.server.VaadinServiceInitListener;
+
+/**
+ * Ensures that the addon's grid styles are always included in the production bundle.
+ *
+ * <p>{@code VaadinServiceInitListener} subtypes are discovered via ClassGraph reflection and are
+ * always treated as entry points, regardless of how consumers use the addon. Placing the
+ * {@code @CssImport} annotation here guarantees that the grid styles are included even when
+ * {@link GridHelper} is not reachable through bytecode analysis.
+ *
+ * @see <a href="https://github.com/FlowingCode/GridHelpers/issues/171">Issue #171</a>
+ */
+@CssImport(value = GridHelper.GRID_STYLES, themeFor = "vaadin-grid")
+public class GridHelperServiceInitListener implements VaadinServiceInitListener {
+
+  @Override
+  public void serviceInit(ServiceInitEvent event) {
+    // No initialization needed; this class exists solely to anchor the
+    // @CssImport annotation so it is always picked up during the production
+    // bundle build via ClassGraph entry-point seeding.
+  }
+}
diff --git a/src/main/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener b/src/main/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener
new file mode 100644
index 0000000..e483373
--- /dev/null
+++ b/src/main/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener
@@ -0,0 +1 @@
+com.flowingcode.vaadin.addons.gridhelpers.GridHelperServiceInitListener