fix(core): `WindowEvent` type used on `Window::on_window_event` (#3796)

.changes/fix-on-window-event-type.md

@@ -0,0 +1,5 @@
+---
+"tauri": patch
+---
+
+Fixes the `WindowEvent` type used on `Window::on_window_event`.

core/tauri/src/manager.rs

@@ -40,7 +40,7 @@ use crate::{
       ResponseBuilder as HttpResponseBuilder,
     },
     webview::{WebviewIpcHandler, WindowBuilder},
-    window::{dpi::PhysicalSize, DetachedWindow, FileDropEvent, PendingWindow, WindowEvent},
+    window::{dpi::PhysicalSize, DetachedWindow, FileDropEvent, PendingWindow},
   },
   utils::{
     assets::Assets,
@@ -48,6 +48,7 @@ use crate::{
     PackageInfo,
   },
   Context, EventLoopMessage, Icon, Invoke, Manager, Pattern, Runtime, Scopes, StateManager, Window,
+  WindowEvent,
 };
 
 #[cfg(any(target_os = "linux", target_os = "windows"))]
@@ -1147,7 +1148,7 @@ impl<R: Runtime> WindowManager<R> {
       for handler in window_event_listeners.iter() {
         handler(GlobalWindowEvent {
           window: window_.clone(),
-          event: event.clone().into(),
+          event: event.clone(),
         });
       }
     });
@@ -1274,9 +1275,9 @@ fn on_window_event<R: Runtime>(
   match event {
     WindowEvent::Resized(size) => window.emit(WINDOW_RESIZED_EVENT, size)?,
     WindowEvent::Moved(position) => window.emit(WINDOW_MOVED_EVENT, position)?,
-    WindowEvent::CloseRequested { signal_tx } => {
+    WindowEvent::CloseRequested { api } => {
       if window.has_js_listener(Some(window.label().into()), WINDOW_CLOSE_REQUESTED_EVENT) {
-        signal_tx.send(true).unwrap();
+        api.prevent_close();
       }
       window.emit(WINDOW_CLOSE_REQUESTED_EVENT, ())?;
     }

core/tauri/src/window.rs

@@ -21,7 +21,7 @@ use crate::{
     webview::{WebviewAttributes, WindowBuilder as _},
     window::{
       dpi::{PhysicalPosition, PhysicalSize, Position, Size},
-      DetachedWindow, JsEventListenerKey, PendingWindow, WindowEvent,
+      DetachedWindow, JsEventListenerKey, PendingWindow,
     },
     Dispatch, RuntimeHandle, UserAttentionType,
   },
@@ -29,7 +29,7 @@ use crate::{
   sealed::RuntimeOrDispatch,
   utils::config::WindowUrl,
   EventLoopMessage, Icon, Invoke, InvokeError, InvokeMessage, InvokeResolver, Manager,
-  PageLoadPayload, Runtime,
+  PageLoadPayload, Runtime, WindowEvent,
 };
 
 use serde::Serialize;
@@ -724,7 +724,10 @@ impl<R: Runtime> Window<R> {
 
   /// Registers a window event listener.
   pub fn on_window_event<F: Fn(&WindowEvent) + Send + 'static>(&self, f: F) {
-    self.window.dispatcher.on_window_event(f);
+    self
+      .window
+      .dispatcher
+      .on_window_event(move |event| f(&event.clone().into()));
   }
 
   /// Registers a menu event listener.