Fix full-screen shortcut shown on Windows

crates/engine/src/commands/frontend.rs

@@ -71,7 +71,9 @@ pub fn specs() -> Vec<CommandSpec> {
         fe!("view.snapToGrid", "Snap to Grid", ["View"], Some("Cmd+Shift+'"), "{value?}", always),
         fe!("view.options", "View Options...", ["View"], Some("Cmd+Alt+U"), "{}", has_comp),
         fe!("view.layerControls", "Show Layer Controls", ["View"], Some("Cmd+Shift+H"), "{value?}", always),
-        fe!("view.fullScreen", "Enter Full Screen", ["View"], Some("Ctrl+Cmd+F"), "{}", always),
+        // macOS uses Control+Command+F for native full screen. On Windows and Linux,
+        // Cmd maps to Ctrl; the After Effects-style Ctrl+\ is window.maximizeApp.
+        fe!("view.fullScreen", "Enter Full Screen", ["View"], cfg!(target_os = "macos").then_some("Ctrl+Cmd+F"), "{}", always),
         fe!(
             "view.newViewer",
             "New Viewer",

crates/ui-egui/src/menus.rs

@@ -1537,8 +1537,8 @@ pub type Binding = (egui::Modifiers, egui::Key, String, Value);
 pub fn bindings(session: &effectcraft_engine::Session) -> Vec<Binding> {
     let mut v: Vec<Binding> = Vec::new();
     for (sc, b) in session.shortcuts().bindings() {
-        // Off macOS `Cmd` is Ctrl, so a Ctrl+Cmd shortcut (Enter Full Screen's Ctrl+Cmd+F) would
-        // steal the plain Cmd one (Find's Cmd+F): such macOS-only shortcuts aren't bound there.
+        // Off macOS `Cmd` is Ctrl, so a custom Ctrl+Cmd shortcut would
+        // steal the plain Cmd one: such macOS-only shortcuts aren't bound there.
         if !cfg!(target_os = "macos") && sc.split('+').any(|p| p == "Ctrl") && sc.split('+').any(|p| p == "Cmd") {
             continue;
         }
@@ -1971,6 +1971,18 @@ mod tests {
         }
     }
 
+    #[test]
+    fn full_screen_default_is_platform_specific() {
+        let app = EffectcraftApp::new(effectcraft_engine::Session::default());
+        let full_screen = app.session.shortcuts().shortcut_of("view.fullScreen", &Value::Null);
+        if cfg!(target_os = "macos") {
+            assert_eq!(full_screen, Some("Ctrl+Cmd+F"));
+        } else {
+            assert_eq!(full_screen, None);
+            assert_eq!(app.session.shortcuts().shortcut_of("window.maximizeApp", &Value::Null), Some("Cmd+\\"));
+        }
+    }
+
     #[test]
     fn ui_and_menu_shortcuts_do_not_collide() {
         let app = EffectcraftApp::new(effectcraft_engine::Session::default());