WindowBehavior::moved

CHANGELOG.md

@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `PendingApp::on_startup` accepts a callback that will be invoked once the
   event loop is executing.
+- `WindowBehavior::moved` is called when the window moves.
 
 ### Changed
 

src/window.rs

@@ -581,7 +581,10 @@ where
                     }
                 }
                 WindowEvent::Moved(position) => {
-                    self.position = position;
+                    if self.position != position {
+                        self.position = position;
+                        behavior.moved(self);
+                    }
                 }
                 WindowEvent::Destroyed => {
                     return HandleMessageResult::Destroyed;
@@ -979,6 +982,11 @@ where
     #[allow(unused_variables)]
     fn resized(&mut self, window: &mut RunningWindow<AppMessage>) {}
 
+    /// The window has been moved. [`RunningWindow::position()`] returns the
+    /// current position.
+    #[allow(unused_variables)]
+    fn moved(&mut self, window: &mut RunningWindow<AppMessage>) {}
+
     /// The window's theme has been updated. [`RunningWindow::theme()`]
     /// returns the current theme.
     #[allow(unused_variables)]