M5: controller buttons wait while the link notice shows

A controller button pressed while the notice before a website link
shows no longer plays the prototype's gamepad triggers, as keys do not.
Buttons play again once the notice closes.

crates/ui-egui/src/present.rs

@@ -2506,7 +2506,9 @@ fn input(p: &mut Presenter, ctx: &egui::Context, l: &Layout, over_area: bool, ke
         )
     });
     let keys = if keys_on { keys } else { Vec::new() };
+    // Controller buttons pressed while a link notice shows are dropped, as keys are.
     let pads = std::mem::take(&mut p.pads);
+    let pads = if p.link_notice.is_none() { pads } else { Vec::new() };
     // A transition a drag started follows the pointer while it stays down, then plays on from there.
     if let Some(a) = p.anim.as_mut()
         && let Some((from, dir, len)) = a.follow

crates/ui-egui/src/present_links_tests.rs

@@ -162,6 +162,34 @@ fn the_presenter_keys_wait_while_the_notice_shows() {
     assert_eq!(notice(&u), "https://example.com/a");
 }
 
+#[test]
+fn the_prototype_takes_no_controller_buttons_while_the_notice_shows() {
+    let mut s = Session::new();
+    let a = id(&ex(&mut s, "frame.create", json!({"x": 0, "y": 0, "width": 300, "height": 400, "name": "A"})));
+    let b = id(&ex(&mut s, "frame.create", json!({"x": 400, "y": 0, "width": 300, "height": 400, "name": "B"})));
+    let layer = id(&ex(&mut s, "shape.rectangle", json!({"x": 10, "y": 10, "width": 30, "height": 30, "parent": a})));
+    let link = json!({"type": "openUrl", "url": "https://example.com/a"});
+    ex(&mut s, "proto.interaction.add", json!({"id": layer, "trigger": {"type": "afterDelay", "ms": 100}, "action": link}));
+    let to_b = json!({"type": "navigate", "dest": b});
+    ex(&mut s, "proto.interaction.add", json!({"id": a, "trigger": {"type": "keyPress", "key": "Gamepad A"}, "action": to_b}));
+    let mut u = Harness::new(s);
+    u.app.services = Box::new(Opened::default());
+    u.ctx.enable_accesskit();
+    u.run("proto.present", json!({"start": a}));
+    u.frames(40, Vec::new);
+    assert_eq!(notice(&u), "https://example.com/a");
+    let ctx = u.ctx.clone();
+    crate::control::handle(&mut u.app, &ctx, "ui.input", &json!({"events": [{"gamepad": "A"}]})).unwrap();
+    u.frames(2, Vec::new);
+    assert_eq!(u.app.inspect()["presenter"]["current"], json!(a), "the Gamepad A trigger did not run");
+    assert_eq!(notice(&u), "https://example.com/a");
+    click(&mut u, "Cancel");
+    assert!(notice(&u).is_null());
+    crate::control::handle(&mut u.app, &ctx, "ui.input", &json!({"events": [{"gamepad": "A"}]})).unwrap();
+    u.frames(2, Vec::new);
+    assert_eq!(u.app.inspect()["presenter"]["current"], json!(b), "the button plays once the notice closes");
+}
+
 #[test]
 fn dont_show_this_again_is_saved_with_the_preferences() {
     let (mut u, seen) = presented("https://example.com/a", false);