From f5ad06c233ca4595106b84cfa02413aba6822191 Mon Sep 17 00:00:00 2001
From: Olaf Wintermann <olaf.wintermann@gmail.com>
Date: Sat, 7 Jun 2025 23:36:31 +0200
Subject: [PATCH] add a list of event handlers to UiObject

---
 ui-java/src/main/java/de/unixwork/ui/EventHandler.java |  6 ++++++
 ui-java/src/main/java/de/unixwork/ui/UiContext.java    | 10 ++++++++++
 ui-java/src/main/java/de/unixwork/ui/UiObject.java     |  3 +++
 3 files changed, 19 insertions(+)
 create mode 100644 ui-java/src/main/java/de/unixwork/ui/EventHandler.java
 create mode 100644 ui-java/src/main/java/de/unixwork/ui/UiContext.java

diff --git a/ui-java/src/main/java/de/unixwork/ui/EventHandler.java b/ui-java/src/main/java/de/unixwork/ui/EventHandler.java
new file mode 100644
index 0000000..b76e7ec
--- /dev/null
+++ b/ui-java/src/main/java/de/unixwork/ui/EventHandler.java
@@ -0,0 +1,6 @@
+package de.unixwork.ui;
+
+@FunctionalInterface
+public interface EventHandler {
+    public void callback(Object event);
+}
diff --git a/ui-java/src/main/java/de/unixwork/ui/UiContext.java b/ui-java/src/main/java/de/unixwork/ui/UiContext.java
new file mode 100644
index 0000000..d6bde18
--- /dev/null
+++ b/ui-java/src/main/java/de/unixwork/ui/UiContext.java
@@ -0,0 +1,10 @@
+package de.unixwork.ui;
+
+import java.lang.foreign.MemorySegment;
+
+public class UiContext {
+    public MemorySegment ctxptr;
+
+
+
+}
diff --git a/ui-java/src/main/java/de/unixwork/ui/UiObject.java b/ui-java/src/main/java/de/unixwork/ui/UiObject.java
index 374f76d..0bdc644 100644
--- a/ui-java/src/main/java/de/unixwork/ui/UiObject.java
+++ b/ui-java/src/main/java/de/unixwork/ui/UiObject.java
@@ -1,10 +1,13 @@
 package de.unixwork.ui;
 
 import java.lang.foreign.MemorySegment;
+import java.util.ArrayList;
 
 public class UiObject {
     MemorySegment ptr;
 
+    private ArrayList<EventHandler> eventHandlers = new ArrayList<>();
+
     UiObject(MemorySegment ptr) {
         this.ptr = ptr;
     }
-- 
2.47.3