Clock: toggle with Pos1 instead of Einfg

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

python-backend/config.yml.example

@@ -136,7 +136,7 @@ general:
   #   auto_off_minutes: 15
   #   timeout: 5.0               # seconds before a hung command is killed
 
-  # The clock overlay (Einfg on the kiosk keyboard, Guide on the remote). Optional; these
+  # The clock overlay (Pos1 on the kiosk keyboard, Guide on the remote). Optional; these
   # are the defaults. On school days a bus countdown shows for bus_lead_minutes before
   # bus_time. School days skip weekends and the school and public holidays of
   # `subdivision`, fetched daily from openholidaysapi.org and cached under

web/src/components/BrowseView.tsx

@@ -190,14 +190,13 @@ function BrowseViewImpl({
         />
         <div
           ref={scroller}
-          className={ANIMATE_VIEW_TRANSITIONS ? "view-enter" : undefined}
+          className={`no-scrollbar${ANIMATE_VIEW_TRANSITIONS ? " view-enter" : ""}`}
           // Right padding reserves room for the tab rail's own glass bar (see
           // TAB_RAIL_CLEARANCE) so a full-width shelf row never renders under it. The
-          // three rows fit the screen, so no vertical scrollbar: each row scrolls
+          // vertical scrollbar is hidden, but the wheel and touch still scroll.
-          // sideways on its own.
           style={{
             flex: 1,
-            overflow: "hidden",
+            overflow: "auto",
             minHeight: 0,
             padding: `14px ${TAB_RAIL_CLEARANCE}px 250px 32px`,
           }}

web/src/components/ClockOverlay.tsx

@@ -4,7 +4,7 @@
  * minus the mascot swimming through the scene (too distracting for a clock you read
  * at a glance).
  *
- * Mounted for as long as the app is, and only hidden: Einfg and the remote's Guide key
+ * Mounted for as long as the app is, and only hidden: Pos1 and the remote's Guide key
  * have to show it at once, not after a first render. The second ticker only runs while
  * it is on screen. Any click closes it. */
 

web/src/lib/__tests__/keyboard.test.ts

@@ -522,14 +522,14 @@ describe("Del", () => {
   });
 });
 
-describe("Einfg", () => {
+describe("Pos1", () => {
   it("toggles the clock, on every page", () => {
     for (const page of ["music", "room", "typing", "parents"] as const) {
-      expect(press("Insert", { ...initialUiState, page })).toContainEqual({
+      expect(press("Home", { ...initialUiState, page })).toContainEqual({
         type: "ui",
         patch: { showClock: true },
       });
-      expect(press("Insert", { ...initialUiState, page, showClock: true })).toContainEqual({
+      expect(press("Home", { ...initialUiState, page, showClock: true })).toContainEqual({
         type: "ui",
         patch: { showClock: false },
       });

web/src/lib/keyboard.ts

@@ -269,9 +269,9 @@ export function handleKey(
   // another room.
   if (key === "Delete" && !event.ctrlKey && !event.metaKey) return [{ type: "screen" }];
 
-  // Einfg, right next to it: the clock, over whatever is on screen - the typing tab
+  // Pos1, in the same block: the clock, over whatever is on screen - the typing tab
   // included, like Del, since no lesson drills it either.
-  if (key === "Insert" && !event.ctrlKey && !event.metaKey) {
+  if (key === "Home" && !event.ctrlKey && !event.metaKey) {
     return [{ type: "pop", freq: 520 }, { type: "ui", patch: { showClock: !state.showClock } }];
   }
 

web/src/styles/app.css

@@ -273,11 +273,17 @@ button {
      focused. */
   padding: 14px 10px 14px;
   cursor: grab;
+}
+
+/* Scrolls by wheel, touch and keyboard, but draws no scrollbar. */
+.shelf-row,
+.no-scrollbar {
   scrollbar-width: none; /* Firefox */
   -ms-overflow-style: none; /* old Edge */
 }
 
-.shelf-row::-webkit-scrollbar {
+.shelf-row::-webkit-scrollbar,
+.no-scrollbar::-webkit-scrollbar {
   display: none; /* Chrome, Safari */
 }