From 697c1d75fd5c0622853dbeb0d5e5cee1ead4d507 Mon Sep 17 00:00:00 2001
From: Olaf Wintermann <olaf.wintermann@gmail.com>
Date: Mon, 18 May 2026 19:44:20 +0200
Subject: [PATCH] add obj to Event

---
 application/src/window.rs |  2 +-
 ui-rs/src/ui/event.rs     |  8 +++++++-
 ui-rs/src/ui/toolkit.rs   | 17 +++++++++++++++--
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/application/src/window.rs b/application/src/window.rs
index 507afa1..e2931fe 100644
--- a/application/src/window.rs
+++ b/application/src/window.rs
@@ -51,7 +51,7 @@ impl MainWindow {
 
     #[action]
     pub fn new_notebook(&mut self, _event: &ActionEvent) {
-        println!("new notebook");
+
     }
 
     #[action]
diff --git a/ui-rs/src/ui/event.rs b/ui-rs/src/ui/event.rs
index b39967f..e1d43f5 100644
--- a/ui-rs/src/ui/event.rs
+++ b/ui-rs/src/ui/event.rs
@@ -29,10 +29,11 @@
 #![allow(dead_code)]
 
 use std::ffi::{c_char, c_void, CStr, CString};
-use crate::ui::{event, ffi, UiDouble, UiInteger, UiString, UiText, UiRange, ListSelection};
+use crate::ui::{event, ffi, UiDouble, UiInteger, UiString, UiText, UiRange, ListSelection, UiObject};
 use crate::ui::ffi::{UiEvent};
 
 pub struct Event<'a, T> {
+    pub obj: &'a mut UiObject<T>,
     pub data: &'a mut T,
     pub event_type: EventType<'a>,
     pub intval: i32,
@@ -151,7 +152,11 @@ pub extern "C" fn event_wrapper<T>(e: *const ffi::UiEvent, data: *mut c_void) {
         let mut event_data = get_event_data(e);
         let event_type = get_event_type(&mut event_data);
 
+        let obj_ptr = unsafe { ui_event_get_obj(e) };
+        let mut obj: UiObject<T> = UiObject::from_ptr(obj_ptr);
+
         let mut event = Event {
+            obj: &mut obj,
             data: wdata,
             event_type: event_type,
             intval: ev_int,
@@ -196,6 +201,7 @@ pub extern "C" fn action_event_wrapper<T>(e: *const ffi::UiEvent, data: *mut c_v
 }
 
 extern "C" {
+    fn ui_event_get_obj(event: *const UiEvent) -> *mut ffi::UiObject;
     fn ui_event_get_windowdata(event: *const UiEvent) -> *const c_void;
     fn ui_event_get_document(event: *const UiEvent) -> *const c_void;
     fn ui_event_get_eventdata(event: *const UiEvent) -> *mut c_void;
diff --git a/ui-rs/src/ui/toolkit.rs b/ui-rs/src/ui/toolkit.rs
index 050dd1b..481e6d9 100644
--- a/ui-rs/src/ui/toolkit.rs
+++ b/ui-rs/src/ui/toolkit.rs
@@ -195,12 +195,25 @@ impl<T: UiModel + UiActions> UiDoc<T> {
 }
 
 impl<T> UiObject<T> {
+    pub fn from_ptr(ptr: *mut ffi::UiObject) -> UiObject<T> {
+        let ctx_ptr = unsafe { ui_object_get_context(ptr) };
+        unsafe {
+            ui_object_ref(ptr);
+        }
+        UiObject {
+            ptr: ptr,
+            ctx: UiContext::from_ptr(ctx_ptr),
+            _data: PhantomData
+        }
+    }
+
     pub fn window_data<F>(self, mut f: F)
     where F: FnMut(&mut T) {
         unsafe {
             let wdata_ptr: *mut T = ui_object_get_windowdata(self.ptr).cast();
-            assert!(!wdata_ptr.is_null());
-            f(&mut *wdata_ptr);
+            if !wdata_ptr.is_null() {
+                f(&mut *wdata_ptr);
+            }
         }
     }
 
-- 
2.47.3