Shell 1.6.0: bars that tuck away, and every edge resizes

Three things about arranging a dashboard.

**Auto-hide bars.** A new button left of ⛶ folds every tile's title bar away
at once, for a windowed screen that should read like a wall display.
Fullscreen already did this for watching; this is the windowed equivalent,
asked for by hand. It starts off and saves with the layout, so a booth's
named layout loads with the bars already tucked away.

**A hidden bar is not a gone bar.** Folded away — by that switch or by a
tile's own notch — the bar leaves the flow and parks just above its tile, so
the module keeps the whole body and nothing reflows as the bar comes and
goes. Point at the tile's top edge and it slides back in over the content,
where its buttons click and its width drags the tile exactly as before. A
dashboard can now be arranged with every bar out of the way, which is the
point of hiding them.

**Every edge resizes.** The top, left and right edges join the bottom one:
each moves only itself, so the tile grows into the space beside it while the
opposite edge stays put, stopping at a neighbour or at the module's own
minimum. Where two tiles meet, that boundary already belongs to the seam
pill between them — it moves both edges and leaves no gap — so the two
tiles' side marks step aside there rather than offer a second, different
control on the same pixels.

One fix underneath: saving a named layout was dropping each tile's variant,
title, minimum size and hidden-bar state, so a saved "Now" tile came back as
the full Now/Next card and a solo timer came back with a full tile's
settings. The layout file now carries them — and the new switch with them.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

public/shell.js

@@ -24,6 +24,7 @@ function toast(msg, isError = false) {
   toastTimer = setTimeout(() => { toastEl.hidden = true; }, 3200);
 }
 
+const autoHideBtn = document.getElementById('autohide-btn');
 const modalBackdrop = document.getElementById('modal-backdrop');
 const modalEl = document.getElementById('modal');
 
@@ -161,18 +162,25 @@ async function loadRegistry() {
 let tiles = [];
 const tileEls = new Map(); // tile id -> { el, body, dot, titleEl, instance }
 
+/* Whether tile title bars fold away until you point at them. It is part of
+   how a dashboard is arranged rather than a preference of this browser, so
+   it saves with the layout — including a named layout on the server — and a
+   fresh dashboard starts with the bars showing. Fullscreen folds every bar
+   away regardless; this is the windowed equivalent, asked for by hand. */
+let autoHideHeads = false;
+
 function saveLayout() {
   try {
-    localStorage.setItem(LS_LAYOUT, JSON.stringify({ v: 1, tiles }));
+    localStorage.setItem(LS_LAYOUT, JSON.stringify({ v: 1, autoHideHeads, tiles }));
   } catch { /* private mode / full — layout just won't persist */ }
 }
 
 function loadLayoutFromStorage() {
   try {
     const raw = JSON.parse(localStorage.getItem(LS_LAYOUT) || 'null');
-    if (raw && Array.isArray(raw.tiles)) return raw.tiles;
+    if (raw && Array.isArray(raw.tiles)) return raw;
   } catch { /* corrupted — start fresh */ }
-  return [];
+  return { tiles: [] };
 }
 
 function sanitizeTile(t) {
@@ -249,6 +257,44 @@ function minSizeOf(tile) {
   };
 }
 
+/* ── title bars that fold away ──────────────────────────────────────── */
+
+/* A bar is "off" when it is folded out of sight but the tile is still being
+   worked on — either this tile's own notch hid it, or the dashboard has
+   auto-hide switched on. Fullscreen is not one of these: there the bars fold
+   away for watching, and arranging is switched off entirely. */
+
+/** How close to the tile's top edge the pointer opens a folded-away bar. */
+const HEAD_REVEAL_PX = 22;
+/** How far down it may wander before that bar folds away again (bar + a little). */
+const HEAD_HOLD_PX = 38;
+
+function headIsOff(tile) {
+  if (document.body.classList.contains('fullscreen')) return false;
+  return autoHideHeads || Boolean(tile.headHidden);
+}
+
+function applyHeadState(tile, el = tileEls.get(tile.id)?.el) {
+  if (!el) return;
+  const off = headIsOff(tile);
+  el.classList.toggle('head-off', off);
+  if (!off) el.classList.remove('head-peek');
+}
+
+/** Re-read every tile's bar — after the toggle, or after fullscreen changes. */
+function applyAllHeadStates() {
+  for (const tile of tiles) applyHeadState(tile);
+}
+
+function setAutoHideHeads(on, { save = true } = {}) {
+  autoHideHeads = Boolean(on);
+  document.body.classList.toggle('autohide-heads', autoHideHeads);
+  autoHideBtn?.classList.toggle('is-on', autoHideHeads);
+  autoHideBtn?.setAttribute('aria-pressed', autoHideHeads ? 'true' : 'false');
+  applyAllHeadStates();
+  if (save) saveLayout();
+}
+
 /* ── tile DOM ───────────────────────────────────────────────────────── */
 
 const CLOSE_SVG = '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" aria-hidden="true"><path d="M6 6l12 12M18 6L6 18"/></svg>';
@@ -320,6 +366,19 @@ function buildTile(tile) {
   resizeBottom.className = 'tile-resize-bottom';
   resizeBottom.title = 'Drag to adjust height';
 
+  // The other three edges move only themselves: the top edge changes where
+  // the tile starts, the sides change how wide it is. Each stops where a
+  // neighbour or the tile's own minimum says it must.
+  const edgeGrip = (cls, title) => {
+    const gripEl = document.createElement('div');
+    gripEl.className = cls;
+    gripEl.title = title;
+    return gripEl;
+  };
+  const edgeTop = edgeGrip('tile-resize-top', 'Drag to adjust height');
+  const edgeRight = edgeGrip('tile-resize-right', 'Drag to adjust width');
+  const edgeLeft = edgeGrip('tile-resize-side', 'Drag to adjust width');
+
   // notch on the title bar's bottom edge: hides/shows the bar
   const notch = document.createElement('button');
   notch.className = 'tile-notch';
@@ -333,19 +392,41 @@ function buildTile(tile) {
       return;
     }
     tile.headHidden = !tile.headHidden;
-    el.classList.toggle('head-hidden', tile.headHidden);
+    applyHeadState(tile, el);
     saveLayout();
   });
 
+  // A folded-away bar is still reachable: point at the tile's top edge and it
+  // slides in over the content, where its buttons click and its whole width
+  // drags the tile exactly as when it is showing.
+  el.addEventListener('pointermove', (ev) => {
+    if (!headIsOff(tile)) return;
+    // Mid-drag the tile moves under the pointer, and mid-resize the edges do
+    // — neither is a moment to take the bar away.
+    if (el.classList.contains('dragging') || el.classList.contains('resizing')) return;
+    const y = ev.clientY - el.getBoundingClientRect().top;
+    const shown = el.classList.contains('head-peek');
+    // It takes less to hold the bar open than to open it, so a bar that
+    // appears under the pointer cannot flicker straight back out.
+    if (!shown && y <= HEAD_REVEAL_PX) el.classList.add('head-peek');
+    else if (shown && y > HEAD_HOLD_PX) el.classList.remove('head-peek');
+  });
+
   // A peeked title bar stays while the pointer is on its tile, and starts
   // counting down as soon as it leaves.
   el.addEventListener('pointerenter', () => clearPeekTimer(tile.id));
   el.addEventListener('pointerleave', () => {
-    if (el.classList.contains('head-peek')) schedulePeekHide(tile.id, el);
+    if (!el.classList.contains('head-peek')) return;
+    if (el.classList.contains('dragging') || el.classList.contains('resizing')) return;
+    // Windowed, the bar is a hover-reveal and goes the moment the pointer
+    // does. In fullscreen it was opened deliberately from the notch, so it
+    // lingers (PEEK_HIDE_MS) before folding away again.
+    if (document.body.classList.contains('fullscreen')) schedulePeekHide(tile.id, el);
+    else el.classList.remove('head-peek');
   });
 
-  el.append(head, body, resize, resizeLeft, resizeBottom, notch);
-  el.classList.toggle('head-hidden', Boolean(tile.headHidden));
+  el.append(head, body, resize, resizeLeft, resizeBottom, edgeTop, edgeRight, edgeLeft, notch);
+  applyHeadState(tile, el);
   grid.appendChild(el);
 
   const entry = { el, body, dot, titleEl: title, controls, instance: null };
@@ -356,6 +437,9 @@ function buildTile(tile) {
   wireResize(tile, el, resize, false);
   wireResize(tile, el, resizeLeft, true);
   wireBottomResize(tile, el, resizeBottom);
+  wireEdgeResize(tile, el, edgeTop, 'n');
+  wireEdgeResize(tile, el, edgeRight, 'e');
+  wireEdgeResize(tile, el, edgeLeft, 'w');
 
   mountModule(tile);
   return entry;
@@ -486,6 +570,80 @@ function wireResize(tile, el, handle, fromLeft) {
   });
 }
 
+/* ── drag the top, left or right edge ───────────────────────────────── */
+
+/* One edge moves and the opposite one stays where it is, so the tile grows
+   or shrinks into the space beside it. Unlike the bottom-edge pill these do
+   not trade rows or columns with a neighbour: the edge simply stops when it
+   meets one, which is what "resize this tile" should mean. */
+
+function wireEdgeResize(tile, el, handle, edge) {
+  handle.addEventListener('pointerdown', (ev) => {
+    if (ev.button !== 0 && ev.pointerType === 'mouse') return;
+    if (document.body.classList.contains('fullscreen')) return;
+    ev.preventDefault();
+    ev.stopPropagation();
+    closeSettingsPopovers();
+    handle.setPointerCapture(ev.pointerId);
+    const m = cellMetrics();
+    const sx = ev.clientX;
+    const sy = ev.clientY;
+    const startX = tile.x;
+    const startY = tile.y;
+    const startW = tile.w;
+    const startH = tile.h;
+    const min = minSizeOf(tile);
+    el.classList.add('resizing');
+    grid.classList.add('no-dividers');
+    let changed = false;
+
+    const onMove = (e) => {
+      const dCols = Math.round((e.clientX - sx) / (m.cw + m.gap));
+      const dRows = Math.round((e.clientY - sy) / (m.ch + m.gap));
+      let cand;
+      if (edge === 'n') {
+        // the top edge moves; the bottom edge stays put
+        const y = Math.max(0, Math.min(startY + startH - min.h, startY + dRows));
+        cand = { x: tile.x, y, w: tile.w, h: startY + startH - y };
+      } else if (edge === 'w') {
+        // the left edge moves; the right edge stays put
+        const x = Math.max(0, Math.min(startX + startW - min.w, startX + dCols));
+        cand = { x, y: tile.y, w: startX + startW - x, h: tile.h };
+      } else {
+        cand = {
+          x: tile.x,
+          y: tile.y,
+          w: Math.max(min.w, Math.min(COLS - tile.x, startW + dCols)),
+          h: tile.h,
+        };
+      }
+      if (cand.x === tile.x && cand.y === tile.y && cand.w === tile.w && cand.h === tile.h) return;
+      if (!isFree(cand, tile.id)) return;
+      tile.x = cand.x;
+      tile.y = cand.y;
+      tile.w = cand.w;
+      tile.h = cand.h;
+      applyRect(tile);
+      changed = true;
+      notifyResize(tile);
+    };
+    const onUp = () => {
+      handle.removeEventListener('pointermove', onMove);
+      handle.removeEventListener('pointerup', onUp);
+      handle.removeEventListener('pointercancel', onUp);
+      el.classList.remove('resizing');
+      grid.classList.remove('no-dividers');
+      if (changed) {
+        saveLayout();
+        rebuildDividers();
+      }
+    };
+    handle.addEventListener('pointermove', onMove);
+    handle.addEventListener('pointerup', onUp);
+    handle.addEventListener('pointercancel', onUp);
+  });
+}
+
 /* ── drag the bottom edge: height only ──────────────────────────────── */
 
 /* The pill on a tile's bottom edge moves that edge. When other tiles sit
@@ -594,6 +752,29 @@ function rebuildDividers() {
       buildDivider(L, R, top, bottom);
     }
   }
+  markSeamSides();
+}
+
+/* Where two tiles meet, the seam pill between them already owns that
+   boundary — and it is the better tool there, since it moves both edges at
+   once and leaves no gap. A side grip on the same pixels would be a second
+   control doing something else, so it steps aside and the tile is resized
+   from that side by the pill. Free sides keep their grip. */
+function markSeamSides() {
+  const rowsOverlap = (a, b) => Math.min(a.y + a.h, b.y + b.h) > Math.max(a.y, b.y);
+  for (const t of tiles) {
+    const el = tileEls.get(t.id)?.el;
+    if (!el) continue;
+    let left = false;
+    let right = false;
+    for (const o of tiles) {
+      if (o === t || !rowsOverlap(o, t)) continue;
+      if (o.x + o.w === t.x) left = true;
+      if (o.x === t.x + t.w) right = true;
+    }
+    el.classList.toggle('seam-left', left);
+    el.classList.toggle('seam-right', right);
+  }
 }
 
 /** Every pair of tiles that meets at this column boundary, in any row. */
@@ -1712,9 +1893,13 @@ function remountTile(tile) {
 
 /* ── layout apply / reset ───────────────────────────────────────────── */
 
-function renderLayout(list) {
+function renderLayout(layout) {
+  // Callers pass a whole layout; an array on its own is still understood so
+  // "reset" can simply hand over no tiles.
+  const list = Array.isArray(layout) ? layout : (layout?.tiles || []);
   clearAllTiles();
   tiles = list.map(sanitizeTile);
+  if (!Array.isArray(layout)) setAutoHideHeads(Boolean(layout?.autoHideHeads), { save: false });
   for (const tile of tiles) buildTile(tile);
   refreshEmptyState();
   rebuildDividers();
@@ -1794,7 +1979,7 @@ wireDropdown('layout-btn', 'layout-menu', async (menu, stillOpen) => {
       const res = await fetch('/api/layouts/' + encodeURIComponent(name), {
         method: 'PUT',
         headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ layout: { tiles } }),
+        body: JSON.stringify({ layout: { autoHideHeads, tiles } }),
       });
       const body = await res.json().catch(() => ({}));
       if (!res.ok) throw new Error(body.error || 'Save failed (' + res.status + ')');
@@ -1838,7 +2023,7 @@ wireDropdown('layout-btn', 'layout-menu', async (menu, stillOpen) => {
         if (!res.ok) throw new Error(body.error || 'Load failed (' + res.status + ')');
         // Loading copies the layout into this browser's own state — it
         // does not live-link browsers together.
-        renderLayout(body.layout.tiles || []);
+        renderLayout(body.layout);
         saveLayout();
         toast(`Loaded “${l.name}”`);
       } catch (e) {
@@ -2026,6 +2211,13 @@ function clearFullscreenFit() {
   }
 }
 
+autoHideBtn?.addEventListener('click', () => {
+  setAutoHideHeads(!autoHideHeads);
+  toast(autoHideHeads
+    ? 'Title bars hide until you point at a tile\u2019s top edge'
+    : 'Title bars stay put');
+});
+
 fsBtn.addEventListener('click', () => {
   if (!document.fullscreenElement) {
     document.documentElement.requestFullscreen?.().catch(() => {});
@@ -2039,6 +2231,7 @@ document.addEventListener('fullscreenchange', () => {
   document.body.classList.toggle('fullscreen', active);
   if (active) {
     closeSettingsPopovers();
+    applyAllHeadStates(); // fullscreen has its own rule for the bars
     menuHiddenBeforeFs = document.body.classList.contains('menu-hidden');
     setMenuHidden(true, { persist: false }); // the menu auto-hides; its notch brings it back
     // let the collapsed menubar's space settle before measuring
@@ -2047,6 +2240,7 @@ document.addEventListener('fullscreenchange', () => {
     setMenuHidden(menuHiddenBeforeFs, { persist: false });
     clearPeeks();
     clearFullscreenFit();
+    applyAllHeadStates();
   }
 });