Window menu: choosing a checked panel closes it, as in After Effects (fixes #1630)

crates/ui-egui/src/menus.rs

@@ -1521,6 +1521,19 @@ pub(crate) fn panel_shown(app: &EffectcraftApp, p: PanelKind) -> bool {
     }
 }
 
+/// The command a menu entry runs when chosen from a menu: Window ▸ <panel> closes a panel whose
+/// entry is checked, as in After Effects (#1630). Shortcuts and agents calling `window.panel`
+/// still only show the panel.
+pub(crate) fn menu_choice(app: &EffectcraftApp, id: String, params: Value) -> (String, Value) {
+    if id == "window.panel"
+        && let Some(p) = params.get("panel").and_then(Value::as_str).and_then(PanelKind::from_name)
+        && panel_shown(app, p)
+    {
+        return ("window.closePanel".into(), params);
+    }
+    (id, params)
+}
+
 /// Check-mark state of frontend toggles (engine state is answered by the engine).
 pub(crate) fn entry_checked(app: &EffectcraftApp, e: &MenuEntry) -> Option<bool> {
     let v = &app.ui.viewer;
@@ -1990,7 +2003,7 @@ pub fn menu_bar(app: &mut EffectcraftApp, ui: &mut egui::Ui) {
         });
     });
     crate::menu_keys::handle(&ctx, &nav);
-    if let Some((id, params)) = clicked
+    if let Some((id, params)) = clicked.map(|(id, params)| menu_choice(app, id, params))
         && let Err(e) = invoke(app, &ctx, &id, if params.is_null() { json!({}) } else { params })
     {
         app.ui.status = e;

crates/ui-egui/src/native_menu.rs

@@ -376,6 +376,7 @@ pub fn activate(app: &mut EffectcraftApp, ctx: &egui::Context, menu: &NativeMenu
         }
     }
     let params = if params.is_null() { json!({}) } else { params };
+    let (command, params) = crate::menus::menu_choice(app, command, params);
     let r = crate::menus::invoke(app, ctx, &command, params);
     if let Err(e) = &r {
         app.ui.status = e.clone();
@@ -612,6 +613,23 @@ mod tests {
         assert!(spec2.items().iter().any(|i| i.command == "file.openRecent" && i.label == "Recent Test.ecproj"));
     }
 
+    /// #1630: a checked Window menu entry closes its panel; an unchecked one opens it.
+    #[test]
+    fn window_menu_entry_toggles_its_panel() {
+        use crate::dock::PanelKind;
+        let mut app = app();
+        let ctx = egui::Context::default();
+        let choose = |app: &mut EffectcraftApp| {
+            let spec = build(app);
+            let id = spec.items().into_iter().find(|i| i.command == "window.panel" && i.params["panel"] == "align").unwrap().id.clone();
+            activate(app, &ctx, &spec, &id).unwrap();
+        };
+        choose(&mut app);
+        assert!(app.ui.dock.contains(PanelKind::Align));
+        choose(&mut app);
+        assert!(!app.ui.dock.contains(PanelKind::Align));
+    }
+
     #[test]
     fn activation_dispatches_the_menu_command() {
         let mut app = app();

crates/ui-egui/tests/ui_panels.rs

@@ -67,6 +67,26 @@ fn window_menu_opens_the_new_panels() {
     }
 }
 
+/// #1630: choosing a checked panel in the Window menu closes it, as in After Effects (it only
+/// brought the panel to the front, so the check mark never went away); choosing it again opens it.
+#[test]
+fn window_menu_closes_a_checked_panel() {
+    let mut h = harness();
+    let shown = |h: &Harness<'_, EffectcraftApp>| {
+        h.state().ui.dock.contains(PanelKind::Align) || h.state().ui.floating.iter().any(|f| f.panels.contains(&PanelKind::Align))
+    };
+    open(&mut h, "align");
+    assert!(shown(&h));
+    click(&mut h, "menu.Window");
+    let at = h.query_by_label("✔ Align").expect("Window ▸ Align, checked").rect().center();
+    click_at(&mut h, at);
+    assert!(!shown(&h), "Align closed");
+    click(&mut h, "menu.Window");
+    let at = h.query_by_label(" Align").expect("Window ▸ Align, unchecked").rect().center();
+    click_at(&mut h, at);
+    assert!(shown(&h), "Align open again");
+}
+
 #[test]
 fn scopes_switch_kind() {
     let mut h = harness();