Add picker mode — click any element to capture as code snippet in issue

server.js

@@ -3,7 +3,21 @@ const fs = require('fs');
 const http = require('http');
 
 const app = express();
-app.use(express.json());
+
+// Capture raw body for webhook signature verification before JSON parsing
+app.use((req, res, next) => {
+  if (req.path === '/webhook/gitea') {
+    let raw = '';
+    req.on('data', chunk => { raw += chunk; });
+    req.on('end', () => {
+      req.rawBody = raw;
+      try { req.body = JSON.parse(raw); } catch { req.body = {}; }
+      next();
+    });
+  } else {
+    express.json()(req, res, next);
+  }
+});
 
 const PORT = parseInt(process.env.PORT || '3060');
 const BASE = (process.env.BASE_PATH || '/feedback-tool').replace(/\/$/, '');
@@ -41,7 +55,7 @@ function giteaRequest(method, path, body) {
   });
 }
 
-// GET /api/issues?repo=owner/repo — list open issues
+// GET /api/issues?repo=owner/repo
 app.get(['/api/issues', BASE + '/api/issues'], async (req, res) => {
   const { repo } = req.query;
   if (!repo) return res.status(400).json({ error: 'repo required' });
@@ -93,6 +107,7 @@ app.get(['/widget.js', BASE + '/widget.js'], (req, res) => {
     return { repo: s && s.getAttribute('data-repo') };
   })();
 
+  // ── Styles ────────────────────────────────────────────────────────────────
   var style = document.createElement('style');
   style.textContent = \`
     #_fb-fab { position:fixed; bottom:1.5rem; right:1.5rem; width:54px; height:54px; border-radius:50%;
@@ -137,13 +152,43 @@ app.get(['/widget.js', BASE + '/widget.js'], (req, res) => {
     .fb-comment-btn:hover { background:#333; opacity:1; }
     .fb-empty { color:#555; font-size:.85rem; text-align:center; padding:1.5rem 0; }
     .fb-loading { color:#555; font-size:.85rem; text-align:center; padding:1rem 0; }
+    /* Picker row inside new-issue form */
+    .fb-picker-row { display:flex; align-items:center; gap:.6rem; }
+    .fb-picker-btn { background:#1a2a1a; border:1px solid #2a4a2a; color:#6fcf6f; font-size:.78rem;
+      padding:.4rem .7rem; border-radius:6px; cursor:pointer; white-space:nowrap; flex-shrink:0; }
+    .fb-picker-btn:hover { background:#223322; }
+    .fb-picker-hint { color:#444; font-size:.75rem; }
+    .fb-snippet-preview { background:#0a0a0a; border:1px solid #2a2a2a; border-radius:6px;
+      padding:.5rem .7rem; font-size:.72rem; color:#7c9ef5; font-family:monospace;
+      white-space:pre-wrap; word-break:break-all; max-height:80px; overflow-y:auto; }
+    /* Picker overlay */
+    #_fb-picker-shield { display:none; position:fixed; inset:0; z-index:199999; cursor:crosshair; }
+    #_fb-picker-shield.active { display:block; }
+    #_fb-picker-toast { position:fixed; top:1rem; left:50%; transform:translateX(-50%);
+      background:#1a1a1a; border:1px solid #7c9ef5; border-radius:8px;
+      padding:.6rem 1.1rem; color:#e0e0e0; font-size:.85rem; z-index:200000;
+      font-family:'Segoe UI',system-ui,sans-serif; display:none; box-shadow:0 4px 16px rgba(0,0,0,.5); }
+    #_fb-picker-toast.active { display:block; }
+    ._fb-hover-highlight { outline:2px solid #7c9ef5 !important; outline-offset:2px !important; }
   \`;
   document.head.appendChild(style);
 
+  // ── FAB ───────────────────────────────────────────────────────────────────
   var fab = document.createElement('button');
   fab.id = '_fb-fab'; fab.innerHTML = '💬'; fab.title = 'Feedback';
   document.body.appendChild(fab);
 
+  // ── Picker shield (invisible overlay during pick mode) ────────────────────
+  var shield = document.createElement('div');
+  shield.id = '_fb-picker-shield';
+  document.body.appendChild(shield);
+
+  var toast = document.createElement('div');
+  toast.id = '_fb-picker-toast';
+  toast.textContent = '🎯 Click any element to capture it — Esc to cancel';
+  document.body.appendChild(toast);
+
+  // ── Main overlay ──────────────────────────────────────────────────────────
   var overlay = document.createElement('div');
   overlay.id = '_fb-overlay';
   overlay.innerHTML = \`
@@ -161,6 +206,13 @@ app.get(['/widget.js', BASE + '/widget.js'], (req, res) => {
           <div style="display:flex;flex-direction:column;gap:.8rem;">
             <input class="fb-input" id="_fb-title" type="text" placeholder="Title (required)" />
             <textarea class="fb-textarea" id="_fb-desc" placeholder="Describe your feedback…"></textarea>
+            <div class="fb-picker-row">
+              <button class="fb-picker-btn" id="_fb-pick-btn">🎯 Pick element</button>
+              <span class="fb-picker-hint" id="_fb-pick-hint">Click to reference a page element</span>
+            </div>
+            <div id="_fb-snippet-wrap" style="display:none;">
+              <div class="fb-snippet-preview" id="_fb-snippet"></div>
+            </div>
             <button class="fb-btn" id="_fb-submit">Submit Issue</button>
             <div class="fb-status" id="_fb-status"></div>
           </div>
@@ -173,6 +225,7 @@ app.get(['/widget.js', BASE + '/widget.js'], (req, res) => {
   \`;
   document.body.appendChild(overlay);
 
+  // ── Open / close ──────────────────────────────────────────────────────────
   function openOverlay() { overlay.classList.add('open'); }
   function closeOverlay() { overlay.classList.remove('open'); }
 
@@ -183,6 +236,7 @@ app.get(['/widget.js', BASE + '/widget.js'], (req, res) => {
   overlay.addEventListener('click', function(e) { if (e.target === overlay) closeOverlay(); });
   document.getElementById('_fb-hclose').addEventListener('click', closeOverlay);
 
+  // ── Tabs ──────────────────────────────────────────────────────────────────
   var currentTab = 'new';
   document.querySelectorAll('.fb-tab').forEach(function(btn) {
     btn.addEventListener('click', function() {
@@ -195,6 +249,99 @@ app.get(['/widget.js', BASE + '/widget.js'], (req, res) => {
     });
   });
 
+  // ── Picker mode ───────────────────────────────────────────────────────────
+  var pickerActive = false;
+  var pickerHighlighted = null;
+  var capturedSnippet = '';
+
+  function getSelector(el) {
+    if (!el || el === document.body) return 'body';
+    var tag = el.tagName.toLowerCase();
+    var id = el.id ? '#' + el.id : '';
+    var cls = el.className && typeof el.className === 'string'
+      ? '.' + el.className.trim().split(/\\s+/).slice(0,2).join('.') : '';
+    return tag + id + cls;
+  }
+
+  function getSnippet(el) {
+    // Outer HTML truncated sensibly
+    var html = el.outerHTML || '';
+    if (html.length > 500) {
+      // Just show tag + attrs + content preview
+      var inner = (el.textContent || '').trim().slice(0, 120);
+      var m = html.match(/^(<[^>]+>)/);
+      html = (m ? m[1] : '<' + el.tagName.toLowerCase() + '>') + (inner ? '\\n  ' + inner + '…' : '') + '\\n</' + el.tagName.toLowerCase() + '>';
+    }
+    return html;
+  }
+
+  function activatePicker() {
+    pickerActive = true;
+    overlay.classList.remove('open');
+    shield.classList.add('active');
+    toast.classList.add('active');
+  }
+
+  function deactivatePicker(snippet) {
+    pickerActive = false;
+    shield.classList.remove('active');
+    toast.classList.remove('active');
+    if (pickerHighlighted) {
+      pickerHighlighted.classList.remove('_fb-hover-highlight');
+      pickerHighlighted = null;
+    }
+    overlay.classList.add('open');
+    if (snippet) {
+      capturedSnippet = snippet;
+      document.getElementById('_fb-snippet').textContent = snippet;
+      document.getElementById('_fb-snippet-wrap').style.display = '';
+      document.getElementById('_fb-pick-hint').textContent = '✓ Element captured — you can pick again';
+      // Append to description
+      var desc = document.getElementById('_fb-desc');
+      var tag = '\\n\\n**Picked element:**\\n\`\`\`html\\n' + snippet + '\\n\`\`\`';
+      if (!desc.value.includes(tag)) desc.value += tag;
+    }
+  }
+
+  document.getElementById('_fb-pick-btn').addEventListener('click', function() {
+    activatePicker();
+  });
+
+  // Mousemove on page during picker: highlight hovered element
+  document.addEventListener('mousemove', function(e) {
+    if (!pickerActive) return;
+    var el = document.elementFromPoint(e.clientX, e.clientY);
+    // Skip our own UI elements
+    if (!el || el.closest('#_fb-picker-shield') || el.closest('#_fb-picker-toast')) return;
+    if (pickerHighlighted && pickerHighlighted !== el) {
+      pickerHighlighted.classList.remove('_fb-hover-highlight');
+    }
+    pickerHighlighted = el;
+    el.classList.add('_fb-hover-highlight');
+  });
+
+  // Click during picker: capture element
+  shield.addEventListener('click', function(e) {
+    if (!pickerActive) return;
+    e.preventDefault(); e.stopPropagation();
+    // Find element underneath the shield
+    shield.style.display = 'none';
+    var el = document.elementFromPoint(e.clientX, e.clientY);
+    shield.style.display = '';
+    if (el && !el.closest('#_fb-picker-toast')) {
+      el.classList.remove('_fb-hover-highlight');
+      deactivatePicker(getSnippet(el));
+    } else {
+      deactivatePicker(null);
+    }
+  });
+
+  // Esc cancels picker
+  document.addEventListener('keydown', function(e) {
+    if (e.key === 'Escape' && pickerActive) deactivatePicker(null);
+  });
+
+  // ── Submit ────────────────────────────────────────────────────────────────
   document.getElementById('_fb-submit').addEventListener('click', function() {
     var title = document.getElementById('_fb-title').value.trim();
     var body = document.getElementById('_fb-desc').value.trim();
@@ -211,6 +358,9 @@ app.get(['/widget.js', BASE + '/widget.js'], (req, res) => {
         status.textContent='✓ Issue #' + d.issue_number + ' created!';
         document.getElementById('_fb-title').value = '';
         document.getElementById('_fb-desc').value = '';
+        document.getElementById('_fb-snippet-wrap').style.display = 'none';
+        document.getElementById('_fb-pick-hint').textContent = 'Click to reference a page element';
+        capturedSnippet = '';
         btn.disabled = false;
         setTimeout(function() { status.textContent=''; }, 3000);
       } else {
@@ -219,6 +369,7 @@ app.get(['/widget.js', BASE + '/widget.js'], (req, res) => {
     }).catch(function() { status.style.color='#f57c7c'; status.textContent='Network error.'; btn.disabled=false; });
   });
 
+  // ── Open issues tab ───────────────────────────────────────────────────────
   function loadIssues() {
     var list = document.getElementById('_fb-issues-list');
     list.innerHTML = '<div class="fb-loading">Loading…</div>';