fix: slash/QI keyboard nav + bubble position at selection

Slash nav: moved from textarea keydown to slashSearch input keydown (textarea loses focus when slash menu opens). QI nav: document-level up/down/enter/esc with highlight. Bubble: positioned at selection start via caretToPixel instead of textarea bottom center.

frontend/editor-poc.html

@@ -702,10 +702,15 @@ body { font-family: var(--sans); background: var(--bg); color: var(--text); heig
   // ---- Bubble menu ----
   function showBubble() {
     if (ta.selectionStart === ta.selectionEnd) { hideBubble(); return; }
-    var tr = ta.getBoundingClientRect();
+    // Position below the selection start, using caret pixel calc
-    var top = tr.bottom + 6;
+    var pt = caretToPixel(ta.selectionStart);
-    var left = tr.left + (tr.width / 2) - (bubble.offsetWidth / 2);
+    // Convert from editorWrap-relative to viewport-relative
-    if (top + 36 > window.innerHeight) top = tr.top - 44;
+    var wr = editorWrap.getBoundingClientRect();
+    var top = wr.top + pt.y + 4;
+    var left = wr.left + pt.x - 10;
+    // Fallback if caret calc gives odd values
+    if (top < 50) { var tr = ta.getBoundingClientRect(); top = tr.bottom + 6; left = tr.left + (tr.width / 2) - (bubble.offsetWidth / 2); }
+    if (top + 36 > window.innerHeight) top = top - 60;
     if (left < 6) left = 6;
     if (left + bubble.offsetWidth > window.innerWidth - 6) left = window.innerWidth - bubble.offsetWidth - 6;
     bubble.style.left = left + 'px'; bubble.style.top = top + 'px';
@@ -736,6 +741,7 @@ body { font-family: var(--sans); background: var(--bg); color: var(--text); heig
   // ---- Quick Insert ----
   function showQI() {
     qiMenu.classList.remove('on');
+    qiIdx = -1; qiItems = [];
     // Position below current line, left-aligned
     var pt = caretToPixel(null);
     pt.x = Math.max(pt.x - 10, 4);
@@ -809,22 +815,12 @@ body { font-family: var(--sans); background: var(--bg); color: var(--text); heig
 
   // ---- Event handlers ----
   ta.addEventListener('keydown', function(e) {
-    // Slash menu
+    // Slash menu trigger: type / at start of line
     if (e.key === '/') {
       var l = getLine(); var p = getPos();
       var before = l.text.substring(0, p.s - l.start);
       if (before === '' || /^\s*$/.test(before)) setTimeout(showSlash, 20);
     }
-    if (slashVisible) {
-      if (e.key === 'Escape') { e.preventDefault(); hideSlash(); }
-      else if (e.key === 'ArrowDown') { e.preventDefault(); navSlash(1); }
-      else if (e.key === 'ArrowUp') { e.preventDefault(); navSlash(-1); }
-      else if (e.key === 'Enter') {
-        e.preventDefault();
-        var vis = getVisibleSlash();
-        if (slashIdx >= 0 && slashIdx < vis.length) selectSlashAction(vis[slashIdx].getAttribute('data-action'));
-      }
-    }
     if (e.ctrlKey && e.key === 'j') { e.preventDefault(); toggleAIPanel(); }
     if (e.ctrlKey && e.key === 's') { e.preventDefault(); forceSave(); }
     if (e.ctrlKey && e.key === 'b') { e.preventDefault(); wrapSelection('**'); }
@@ -833,6 +829,41 @@ body { font-family: var(--sans); background: var(--bg); color: var(--text); heig
     if (e.altKey && e.key === 'i') { e.preventDefault(); showQI(); }
   });
 
+  // Slash menu keyboard nav (bound to search input which has focus)
+  slashSearch.addEventListener('keydown', function(e) {
+    if (!slashVisible) return;
+    if (e.key === 'Escape') { e.preventDefault(); hideSlash(); ta.focus(); }
+    else if (e.key === 'ArrowDown') { e.preventDefault(); navSlash(1); }
+    else if (e.key === 'ArrowUp') { e.preventDefault(); navSlash(-1); }
+    else if (e.key === 'Enter') {
+      e.preventDefault();
+      var vis = getVisibleSlash();
+      if (slashIdx >= 0 && slashIdx < vis.length) selectSlashAction(vis[slashIdx].getAttribute('data-action'));
+    }
+  });
+
+  // Quick Insert keyboard nav (document-level since no input to focus)
+  var qiIdx = -1;
+  var qiItems = [];
+  document.addEventListener('keydown', function(e) {
+    if (!qiMenu.classList.contains('on')) return;
+    if (!qiItems.length) qiItems = Array.from(qiMenu.querySelectorAll('.qi-item'));
+    if (e.key === 'Escape') { e.preventDefault(); qiMenu.classList.remove('on'); ta.focus(); }
+    else if (e.key === 'ArrowDown') { e.preventDefault(); qiIdx = (qiIdx + 1) % qiItems.length; highlightQI(); }
+    else if (e.key === 'ArrowUp') { e.preventDefault(); qiIdx = (qiIdx - 1 + qiItems.length) % qiItems.length; highlightQI(); }
+    else if (e.key === 'Enter') {
+      e.preventDefault();
+      if (qiIdx >= 0 && qiIdx < qiItems.length) {
+        var action = qiItems[qiIdx].getAttribute('data-qi');
+        qiMenu.classList.remove('on');
+        selectSlashAction(action);
+      }
+    }
+  });
+  function highlightQI() {
+    qiItems.forEach(function(item, i) { item.style.background = i === qiIdx ? 'var(--bg-hover)' : ''; item.style.color = i === qiIdx ? 'var(--text)' : ''; });
+  }
+
   ta.addEventListener('keyup', function(e) {
     if (e.key === '/' && slashVisible) {
       var l = getLine(); var p = getPos();
@@ -879,7 +910,7 @@ body { font-family: var(--sans); background: var(--bg); color: var(--text); heig
   document.addEventListener('click', function(e) {
     if (slashVisible && !slashMenu.contains(e.target) && e.target !== ta) hideSlash();
     if (bubble.classList.contains('on') && !bubble.contains(e.target)) hideBubble();
-    if (qiMenu.classList.contains('on') && !qiMenu.contains(e.target) && e.target.id !== 'qi-btn') qiMenu.classList.remove('on');
+    if (qiMenu.classList.contains('on') && !qiMenu.contains(e.target) && e.target.id !== 'qi-btn') { qiMenu.classList.remove('on'); qiIdx = -1; qiItems = []; }
   });
 
   btnAI.addEventListener('click', toggleAIPanel);