M6: Escape in an open drop-down closes only its list, and a note on the list's fixed colors

crates/ui-egui/src/canvas.rs

@@ -2519,8 +2519,13 @@ pub fn shortcuts(view: &mut DocView, ctx: &egui::Context, speed: crate::scroll_s
         view.view_history(true);
     }
     let key = |k| (arrows || !matches!(k, Key::ArrowLeft | Key::ArrowRight | Key::ArrowUp | Key::ArrowDown)) && ctx.input(|i| i.key_pressed(k));
+    // An open form field (a drop-down's or a list box's items) takes the arrows, Page Up / Page
+    // Down, Home, End and Escape. A focused check box or radio button uses none of them, so the
+    // page keys still work there.
+    let field_open = view.forms.focus.is_some() && form_box.is_none();
     // An open menu takes Escape first and closes; the selection stays for the next one (#3535).
-    if key(Key::Escape) && !egui::Popup::is_any_open(ctx) {
+    // So does an open field, whose list closes.
+    if key(Key::Escape) && !egui::Popup::is_any_open(ctx) && !field_open {
         if view.camera.is_some() || view.camera_done.is_some() {
             view.pending_action = Some(ViewAction::CancelCamera);
         } else if view.selection.is_some() {
@@ -2529,10 +2534,8 @@ pub fn shortcuts(view: &mut DocView, ctx: &egui::Context, speed: crate::scroll_s
             view.find = None;
         }
     }
-    // An open form field takes the arrows, Page Up / Page Down, Home and End (a drop-down's or a
-    // list box's items), so the page under it stays put. A focused check box or radio button
-    // uses none of them, so the page keys still work there.
-    if view.forms.focus.is_some() && form_box.is_none() {
+    // The open field's keys leave the page under it where it is.
+    if field_open {
         return;
     }
     if key(Key::Home) {

crates/ui-egui/src/forms_ui.rs

@@ -899,6 +899,8 @@ fn choice_list(
     let resp = egui::Area::new(egui::Id::new(("form-choices", view))).order(egui::Order::Foreground).fixed_pos(rect.left_bottom()).show(ctx, |ui| {
         let (outer, area) = ui.allocate_exact_size(vec2(width, shown as f32 * row + 2.0), egui::Sense::hover());
         let p = ui.painter();
+        // The list is drawn as the form's own, a white list in the field's font with a blue
+        // highlight, in light and dark themes alike, so its colors are fixed, not the app's tokens.
         p.rect_filled(outer, CornerRadius::ZERO, Color32::WHITE);
         // The wheel scrolls the list, a row at a time, and not the page under it.
         if area.contains_pointer() && n > shown {

crates/ui-egui/tests/forms.rs

@@ -1525,6 +1525,24 @@ fn the_mouse_wheel_scrolls_a_long_drop_down_list_and_not_the_page() {
     assert_eq!(h.state().views[0].page_screen_rect(0), page, "the page stayed where it was");
 }
 
+/// Escape in an open drop-down closes its list and nothing else: the find bar, which Escape
+/// closes when no field is open, stays open.
+#[test]
+fn escape_closes_an_open_drop_downs_list_and_leaves_the_page_alone() {
+    let mut h = harness();
+    long_country(&mut h);
+    h.state_mut().views[0].open_find();
+    h.run_steps(3);
+    assert!(h.state().views[0].find.is_some());
+    click_field(&mut h, "country", 0);
+    assert!(egui_kittest::kittest::Queryable::query_by_label(&h, "0000").is_some(), "the list is open");
+    h.key_press(egui::Key::Escape);
+    h.run_steps(3);
+    assert!(egui_kittest::kittest::Queryable::query_by_label(&h, "0000").is_none(), "Escape closed the list");
+    assert!(h.state().views[0].forms.focus.is_none(), "and the field");
+    assert!(h.state().views[0].find.is_some(), "the find bar stays open");
+}
+
 /// An auto-sized drop-down's list draws its items at the size the field shows its value at, so a
 /// long chosen item fits the list as it fits the field instead of growing past it.
 #[test]