/* eslint-disable */
// accessibility-tree-helper.js
// Injected script to generate an accessibility-like tree of the visible page
// Elements receive stable refs (ref_*) via WeakRef mapping for later reference.
(function () {
if (window.__ACCESSIBILITY_TREE_HELPER_INITIALIZED__) return;
window.__ACCESSIBILITY_TREE_HELPER_INITIALIZED__ = true;
// Traversal and output limits to ensure stability on very large/complex pages
const MAX_DEPTH = 30; // maximum DOM depth to traverse
const MAX_NODES = 4000; // hard limit to avoid long blocking on huge DOMs
const MAX_LINE_LABEL = 100; // max characters for a single label in output
const REF_MAP_LIMIT = 1000; // limit size of the ref map to keep payload small
// Keep a weak map from ref id to elements
if (!window.__claudeElementMap) window.__claudeElementMap = {};
if (!window.__claudeRefCounter) window.__claudeRefCounter = 0;
/**
* Infer ARIA-like role from element
* @param {Element} el
* @returns {string}
*/
function inferRole(el) {
const role = el.getAttribute('role');
if (role) return role;
const tag = el.tagName.toLowerCase();
const type = el.getAttribute('type') || '';
const map = {
a: 'link',
button: 'button',
input:
type === 'submit' || type === 'button'
? 'button'
: type === 'checkbox'
? 'checkbox'
: type === 'radio'
? 'radio'
: type === 'file'
? 'button'
: 'textbox',
select: 'combobox',
textarea: 'textbox',
h1: 'heading',
h2: 'heading',
h3: 'heading',
h4: 'heading',
h5: 'heading',
h6: 'heading',
img: 'image',
nav: 'navigation',
main: 'main',
header: 'banner',
footer: 'contentinfo',
section: 'region',
article: 'article',
aside: 'complementary',
form: 'form',
table: 'table',
ul: 'list',
ol: 'list',
li: 'listitem',
label: 'label',
};
return map[tag] || 'generic';
}
/**
* Derive readable label for element
* @param {Element} el
* @returns {string}
*/
function inferLabel(el) {
const tag = el.tagName.toLowerCase();
if (tag === 'select') {
const sel = /** @type {HTMLSelectElement} */ (el);
const opt = sel.querySelector('option[selected]') || sel.options[sel.selectedIndex];
if (opt && opt.textContent) return opt.textContent.trim();
}
const aria = el.getAttribute('aria-label');
if (aria && aria.trim()) return aria.trim();
const placeholder = el.getAttribute('placeholder');
if (placeholder && placeholder.trim()) return placeholder.trim();
const title = el.getAttribute('title');
if (title && title.trim()) return title.trim();
const alt = el.getAttribute('alt');
if (alt && alt.trim()) return alt.trim();
if (/** @type {HTMLElement} */ (el).id) {
const lab = document.querySelector(`label[for="${/** @type {HTMLElement} */ (el).id}"]`);
if (lab && lab.textContent && lab.textContent.trim()) return lab.textContent.trim();
}
if (tag === 'input') {
const input = /** @type {HTMLInputElement} */ (el);
const type = input.getAttribute('type') || '';
const val = input.getAttribute('value');
if (type === 'submit' && val && val.trim()) return val.trim();
if (input.value && input.value.length < 50 && input.value.trim()) return input.value.trim();
}
if (['button', 'a', 'summary'].includes(tag)) {
let text = '';
for (let i = 0; i < el.childNodes.length; i++) {
const n = el.childNodes[i];
if (n.nodeType === Node.TEXT_NODE) text += n.textContent || '';
}
if (text.trim()) return text.trim();
}
if (/^h[1-6]$/.test(tag)) {
const t = el.textContent;
if (t && t.trim()) return t.trim().substring(0, MAX_LINE_LABEL);
}
if (tag === 'img') {
const src = el.getAttribute('src');
if (src) {
const file = src.split('/').pop()?.split('?')[0];
return `Image: ${file}`;
}
}
let agg = '';
for (let i = 0; i < el.childNodes.length; i++) {
const n = el.childNodes[i];
if (n.nodeType === Node.TEXT_NODE) agg += n.textContent || '';
}
if (agg && agg.trim() && agg.trim().length >= 3) {
const v = agg.trim();
return v.length > 50 ? v.substring(0, 50) + '...' : v;
}
return '';
}
/**
* Check if element is visible in DOM
* @param {Element} el
*/
function isVisible(el) {
const cs = window.getComputedStyle(/** @type {HTMLElement} */ (el));
if (cs.display === 'none' || cs.visibility === 'hidden' || cs.opacity === '0') return false;
const he = /** @type {HTMLElement} */ (el);
return he.offsetWidth > 0 && he.offsetHeight > 0;
}
/**
* Whether the element is interactive
* @param {Element} el
*/
function isInteractive(el) {
// Native interactive tags
const tag = el.tagName.toLowerCase();
if (['a', 'button', 'input', 'select', 'textarea', 'details', 'summary'].includes(tag))
return true;
// Generic interactive hints
if (el.getAttribute('onclick') != null) return true;
if (
el.getAttribute('tabindex') != null &&
String(el.getAttribute('tabindex')).trim() !== '' &&
!String(el.getAttribute('tabindex')).trim().startsWith('-')
)
return true;
if (el.getAttribute('contenteditable') === 'true') return true;
// ARIA roles commonly used by custom elements
const role = (el.getAttribute && el.getAttribute('role')) || '';
const interactiveRoles = new Set([
'button',
'link',
'checkbox',
'radio',
'switch',
'slider',
'option',
'menuitem',
'textbox',
'searchbox',
'combobox',
'spinbutton',
'tab',
'treeitem',
]);
if (role && interactiveRoles.has(role.toLowerCase())) return true;
// Shadow host case: treat host as interactive if its open shadow root contains
// an interactive control (textarea/input/select/button/a or contenteditable).
try {
const anyEl = /** @type {any} */ (el);
const sr = anyEl && anyEl.shadowRoot ? anyEl.shadowRoot : null;
if (sr) {
const inner = sr.querySelector(
'input, textarea, select, button, a[href], [contenteditable="true"], [role="button"], [role="link"], [role="textbox"], [role="combobox"], [role="searchbox"], [role="menuitem"], [role="option"], [role="switch"], [role="radio"], [role="checkbox"], [role="tab"], [role="slider"]',
);
if (inner) return true;
}
} catch (_) {
/* ignore */
}
return false;
}
/**
* Structural containers useful to include
* @param {Element} el
*/
function isStructural(el) {
const tag = el.tagName.toLowerCase();
if (
[
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'nav',
'main',
'header',
'footer',
'section',
'article',
'aside',
].includes(tag)
)
return true;
return el.getAttribute('role') != null;
}
/**
* Form-ish containers to keep
* @param {Element} el
*/
function isFormishContainer(el) {
const tag = el.tagName.toLowerCase();
const role = (el.getAttribute && el.getAttribute('role')) || '';
const id = /** @type {HTMLElement} */ (el).id || '';
// Normalize className for HTML/SVG elements
let cls = '';
try {
const attr = el.getAttribute && el.getAttribute('class');
if (typeof attr === 'string') cls = attr;
else {
const cn = /** @type {any} */ (el).className;
if (typeof cn === 'string') cls = cn;
else if (cn && typeof cn.baseVal === 'string') cls = cn.baseVal;
}
} catch (e) {
/* ignore */
}
return (
role === 'search' ||
role === 'form' ||
role === 'group' ||
role === 'toolbar' ||
role === 'navigation' ||
tag === 'form' ||
tag === 'fieldset' ||
tag === 'nav' ||
tag === 'legend' ||
id.includes('search') ||
cls.includes('search') ||
id.includes('form') ||
cls.includes('form') ||
id.includes('menu') ||
cls.includes('menu') ||
id.includes('nav') ||
cls.includes('nav')
);
}
// Utility: query CSS across open shadow roots (best-effort)
function querySelectorDeepFirst(selector) {
try {
// Fast path
const direct = document.querySelector(selector);
if (direct) return direct;
} catch (_) {}
const visited = new Set();
const stack = [document.documentElement];
while (stack.length) {
const node = stack.pop();
if (!node || visited.has(node)) continue;
visited.add(node);
try {
const root = /** @type {any} */ (node).shadowRoot || (node.nodeType === 9 ? node : null);
if (root) {
try {
const hit = root.querySelector(selector);
if (hit) return hit;
} catch (_) {}
}
} catch (_) {}
// Traverse DOM and shadow roots
try {
const children = /** @type {Element} */ (node).children || [];
for (let i = 0; i < children.length; i++) stack.push(children[i]);
const sr = /** @type {any} */ (node).shadowRoot;
if (sr && sr.children) {
for (let i = 0; i < sr.children.length; i++) stack.push(sr.children[i]);
}
} catch (_) {}
}
return null;
}
/**
* Query CSS selector and return match info including uniqueness check.
* @param {string} selector - CSS selector to query
* @param {boolean} allowMultiple - If true, skip uniqueness check and return first match
* @returns {{element: Element | null, matchCount: number, error?: string}}
* Note: matchCount is capped at 2 (where 2 means "2 or more") for performance
*/
function querySelectorWithUniquenessCheck(selector, allowMultiple = false) {
const seen = new Set();
let firstMatch = null;
let matchCount = 0;
const recordMatch = (el) => {
if (!(el instanceof Element) || seen.has(el)) return false;
seen.add(el);
matchCount++;
if (!firstMatch) firstMatch = el;
// Short-circuit if:
// - allowMultiple is true and we found first match (no need to continue)
// - allowMultiple is false and we found multiple matches
if (allowMultiple && firstMatch) return true;
if (!allowMultiple && matchCount >= 2) return true;
return false;
};
// Query in main document
let selectorError = null;
try {
const directMatches = document.querySelectorAll(selector);
for (let i = 0; i < directMatches.length; i++) {
if (recordMatch(directMatches[i])) {
// Early exit: either found first match (allowMultiple) or found multiple (not allowed)
return { element: firstMatch, matchCount: allowMultiple ? 1 : 2 };
}
}
} catch (e) {
selectorError = e;
}
if (selectorError) {
return {
element: null,
matchCount: 0,
error: `Invalid CSS selector "${selector}": ${selectorError.message || selectorError}`,
};
}
// If allowMultiple and we already have a match, return immediately
if (allowMultiple && firstMatch) {
return { element: firstMatch, matchCount: 1 };
}
// Query in shadow DOMs
const visited = new Set();
const stack = [document.documentElement];
while (stack.length) {
const node = stack.pop();
if (!node || visited.has(node)) continue;
visited.add(node);
try {
const shadowRoot = /** @type {any} */ (node).shadowRoot;
if (shadowRoot) {
try {
const shadowMatches = shadowRoot.querySelectorAll(selector);
for (let i = 0; i < shadowMatches.length; i++) {
if (recordMatch(shadowMatches[i])) {
// Early exit: either found first match (allowMultiple) or found multiple (not allowed)
return { element: firstMatch, matchCount: allowMultiple ? 1 : 2 };
}
}
} catch (e) {
return {
element: null,
matchCount: 0,
error: `Invalid CSS selector "${selector}": ${e.message || e}`,
};
}
// Add shadow root children to stack
try {
const shadowChildren = shadowRoot.children || [];
for (let i = 0; i < shadowChildren.length; i++) {
stack.push(shadowChildren[i]);
}
} catch (_) {}
}
} catch (_) {}
// Add regular children to stack
try {
const children = /** @type {Element} */ (node).children || [];
for (let i = 0; i < children.length; i++) {
stack.push(children[i]);
}
} catch (_) {}
}
return { element: firstMatch, matchCount: Math.min(matchCount, 2) };
}
/**
* Query XPath selector and return match info including uniqueness check.
* @param {string} selector - XPath selector to query
* @param {boolean} allowMultiple - If true, skip uniqueness check and return first match
* @returns {{element: Element | null, matchCount: number, error?: string}}
* Note: matchCount is capped at 2 (where 2 means "2 or more") for performance
*/
function queryXPathWithUniquenessCheck(selector, allowMultiple = false) {
if (!selector) {
return { element: null, matchCount: 0 };
}
try {
if (allowMultiple) {
// When multiple matches are allowed, use ANY_UNORDERED_NODE_TYPE for performance
// This returns just the first match without evaluating the entire result set
const result = document.evaluate(
selector,
document,
null,
XPathResult.ANY_UNORDERED_NODE_TYPE,
null,
);
const firstMatch =
result.singleNodeValue instanceof Element
? /** @type {Element} */ (result.singleNodeValue)
: null;
return { element: firstMatch, matchCount: firstMatch ? 1 : 0 };
} else {
// When uniqueness is required, use ORDERED_NODE_SNAPSHOT_TYPE to count matches
const snapshot = document.evaluate(
selector,
document,
null,
XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
null,
);
const totalMatches = snapshot.snapshotLength;
// Cap at 2 for performance (2 means "2 or more")
const matchCount = Math.min(totalMatches, 2);
const firstMatch =
totalMatches > 0 && snapshot.snapshotItem(0) instanceof Element
? /** @type {Element} */ (snapshot.snapshotItem(0))
: null;
return { element: firstMatch, matchCount };
}
} catch (e) {
return {
element: null,
matchCount: 0,
error: `Invalid XPath "${selector}": ${e.message || e}`,
};
}
}
/**
* Whether to include element in tree under config
* @param {Element} el
* @param {{filter?: 'all'|'interactive'}} cfg
*/
function shouldInclude(el, cfg) {
const tag = el.tagName.toLowerCase();
if (['script', 'style', 'meta', 'link', 'title', 'noscript'].includes(tag)) return false;
if (el.getAttribute('aria-hidden') === 'true') return false;
if (!isVisible(el)) return false;
if (cfg.filter !== 'all') {
const r = /** @type {HTMLElement} */ (el).getBoundingClientRect();
if (
!(r.top < window.innerHeight && r.bottom > 0 && r.left < window.innerWidth && r.right > 0)
)
return false;
}
if (cfg.filter === 'interactive') return isInteractive(el);
if (isInteractive(el)) return true;
if (isStructural(el)) return true;
if (inferLabel(el).length > 0) return true;
return isFormishContainer(el);
}
/**
* Generate a fairly stable CSS selector
* @param {Element} el
* @returns {string}
*/
function generateSelector(el) {
if (!(el instanceof Element)) return '';
if (/** @type {HTMLElement} */ (el).id) {
const idSel = `#${CSS.escape(/** @type {HTMLElement} */ (el).id)}`;
if (document.querySelectorAll(idSel).length === 1) return idSel;
}
for (const attr of ['data-testid', 'data-cy', 'name']) {
const attrValue = el.getAttribute(attr);
if (attrValue) {
const s = `[${attr}="${CSS.escape(attrValue)}"]`;
if (document.querySelectorAll(s).length === 1) return s;
}
}
let path = '';
let current = el;
while (current && current.nodeType === Node.ELEMENT_NODE && current.tagName !== 'BODY') {
let selector = current.tagName.toLowerCase();
const parent = current.parentElement;
if (parent) {
const siblings = Array.from(parent.children).filter(
(child) => child.tagName === current.tagName,
);
if (siblings.length > 1) {
const index = siblings.indexOf(current) + 1;
selector += `:nth-of-type(${index})`;
}
}
path = path ? `${selector} > ${path}` : selector;
current = parent;
}
return path ? `body > ${path}` : 'body';
}
/**
* Traverse DOM and build pageContent lines; collect ref map for interactive nodes.
* @param {Element} el
* @param {number} depth
* @param {{filter?: 'all'|'interactive', maxDepth?: number}} cfg
* @param {string[]} out
* @param {Array<{ref:string, selector:string, rect:{x:number,y:number,width:number,height:number}}>} refMap
*/
function traverse(el, depth, cfg, out, refMap, state) {
const maxDepth = cfg && typeof cfg.maxDepth === 'number' ? cfg.maxDepth : MAX_DEPTH;
if (depth > maxDepth || !el || !el.tagName) return;
if (state.processed >= MAX_NODES) return;
if (state.visited.has(el)) return;
state.visited.add(el);
const include = shouldInclude(el, cfg) || depth === 0;
if (include) {
const role = inferRole(el);
let label = inferLabel(el);
let refId = null;
for (const k in window.__claudeElementMap) {
if (window.__claudeElementMap[k].deref && window.__claudeElementMap[k].deref() === el) {
refId = k;
break;
}
}
if (!refId) {
refId = `ref_${++window.__claudeRefCounter}`;
window.__claudeElementMap[refId] = new WeakRef(el);
}
const rect = /** @type {HTMLElement} */ (el).getBoundingClientRect();
const cx = Math.round(rect.left + rect.width / 2);
const cy = Math.round(rect.top + rect.height / 2);
let line = `${' '.repeat(depth)}- ${role}`;
if (label) {
label = label.replace(/\s+/g, ' ').substring(0, MAX_LINE_LABEL);
line += ` "${label.replace(/"/g, '\\"')}"`;
}
line += ` [ref=${refId}] (x=${cx},y=${cy})`;
if (/** @type {HTMLElement} */ (el).id) line += ` id="${/** @type {HTMLElement} */ (el).id}"`;
const href = el.getAttribute('href');
if (href) line += ` href="${href}"`;
const type = el.getAttribute('type');
if (type) line += ` type="${type}"`;
const placeholder = el.getAttribute('placeholder');
if (placeholder) line += ` placeholder="${placeholder}"`;
// Surface disabled/pointer-events for better agent judgement
try {
const disabled = el.hasAttribute('disabled') || el.getAttribute('aria-disabled') === 'true';
if (disabled) line += ` disabled`;
const cs = window.getComputedStyle(/** @type {HTMLElement} */ (el));
if (cs && cs.pointerEvents === 'none') line += ` pe=none`;
} catch (_) {
/* ignore style issues */
}
out.push(line);
state.included++;
state.processed++;
// Only collect ref mapping for interactive elements to limit cost
if (isInteractive(el) && refMap.length < REF_MAP_LIMIT) {
refMap.push({
ref: /** @type {string} */ (refId),
selector: generateSelector(el),
rect: {
x: rect.x,
y: rect.y,
width: rect.width,
height: rect.height,
},
});
}
}
if (state.processed >= MAX_NODES) return;
// Traverse light DOM children
if (/** @type {HTMLElement} */ (el).children && depth < maxDepth) {
const children = /** @type {HTMLElement} */ (el).children;
for (let i = 0; i < children.length; i++) {
if (state.processed >= MAX_NODES) break;
traverse(children[i], include ? depth + 1 : depth, cfg, out, refMap, state);
}
}
// Traverse shadow DOM roots (limited by maxDepth and MAX_NODES)
try {
const anyEl = /** @type {any} */ (el);
if (anyEl && anyEl.shadowRoot && depth < maxDepth) {
const srChildren = anyEl.shadowRoot.children || [];
for (let i = 0; i < srChildren.length; i++) {
if (state.processed >= MAX_NODES) break;
traverse(srChildren[i], include ? depth + 1 : depth, cfg, out, refMap, state);
}
}
} catch (_) {
/* ignore shadow errors */
}
}
/**
* Generate tree and return
* @param {'all'|'interactive'|null} filter
* @param {{maxDepth?: number, refId?: string}|undefined} options
*/
function __generateAccessibilityTree(filter, options) {
try {
const start = performance && performance.now ? performance.now() : Date.now();
const out = [];
const cfg = { filter: filter || undefined };
// Clamp maxDepth to MAX_DEPTH to keep costs bounded
if (options && Number.isFinite(options.maxDepth)) {
const d = Math.max(0, Math.floor(Number(options.maxDepth)));
cfg.maxDepth = Math.min(d, MAX_DEPTH);
}
const refMap = [];
const state = { processed: 0, included: 0, visited: new WeakSet() };
// Determine root element (body or refId-specified element)
let focus = null;
let root = document.body;
if (options && options.refId) {
const refIdStr = String(options.refId || '').trim();
if (refIdStr) {
const el = resolveRef(refIdStr);
if (!el || !(el instanceof Element)) {
return { error: `ref "${refIdStr}" not found or expired` };
}
root = el;
focus = { refId: refIdStr };
}
}
if (root) traverse(root, 0, cfg, out, refMap, state);
for (const k in window.__claudeElementMap) {
if (!window.__claudeElementMap[k].deref || !window.__claudeElementMap[k].deref())
delete window.__claudeElementMap[k];
}
const pageContent = out
.filter((line) => !/^\s*- generic \[ref=ref_\d+\]$/.test(line))
.join('\n');
const end = performance && performance.now ? performance.now() : Date.now();
return {
pageContent,
focus,
viewport: {
width: window.innerWidth,
height: window.innerHeight,
dpr: window.devicePixelRatio || 1,
},
stats: {
processed: state.processed,
included: state.included,
durationMs: Math.round(end - start),
},
refMap,
};
} catch (err) {
throw new Error(
'Error generating accessibility tree: ' +
(err && err.message ? err.message : 'Unknown error'),
);
}
}
// Expose API on window
window.__generateAccessibilityTree = __generateAccessibilityTree;
// ============================================================================
// Hover for Ref (DOM Fallback Support)
// ============================================================================
async function handleHoverForRef(ref) {
if (!ref) return { success: false, error: 'ref is required' };
const el = resolveRef(ref);
if (el) {
dispatchHoverEvents(el);
return { success: true, target: summarizeElement(el) };
}
return await forwardHoverRefToChildren(ref);
}
function resolveRef(ref) {
const map = window.__claudeElementMap || {};
const weak = map[ref];
return weak && typeof weak.deref === 'function' ? weak.deref() : null;
}
function dispatchHoverEvents(el) {
const rect = el.getBoundingClientRect();
const center = {
x: Math.round(rect.left + rect.width / 2),
y: Math.round(rect.top + rect.height / 2),
};
['mousemove', 'mouseover', 'mouseenter'].forEach((type) => {
el.dispatchEvent(
new MouseEvent(type, {
bubbles: true,
cancelable: true,
clientX: center.x,
clientY: center.y,
view: window,
}),
);
});
}
function summarizeElement(el) {
return {
tagName: el.tagName,
id: el.id || '',
className: el.className || '',
text: (el.textContent || '').trim().slice(0, 100),
};
}
function forwardHoverRefToChildren(ref) {
return new Promise((resolve) => {
const frames = Array.from(document.querySelectorAll('iframe, frame'));
if (!frames.length) {
resolve({ success: false, error: `ref "${ref}" not found` });
return;
}
const reqId = `hover_ref_${Date.now()}_${Math.random().toString(36).slice(2, 8)}`;
const listener = (ev) => {
const data = ev?.data;
if (!data || data.type !== 'rr-bridge-hover-ref-result' || data.reqId !== reqId) return;
window.removeEventListener('message', listener, true);
resolve(data.result);
};
window.addEventListener('message', listener, true);
setTimeout(() => {
window.removeEventListener('message', listener, true);
resolve({ success: false, error: `ref "${ref}" not found in child frames` });
}, 1500);
for (const frame of frames) {
try {
frame.contentWindow?.postMessage({ type: 'rr-bridge-hover-ref', reqId, ref }, '*');
} catch {}
}
});
}
// Chrome message bridge for ping and tree generation
chrome.runtime.onMessage.addListener((request, _sender, sendResponse) => {
try {
if (request && request.action === 'chrome_read_page_ping') {
sendResponse({ status: 'pong' });
return false;
}
if (request && request.action === 'rr_overlay') {
try {
const cmd = request.cmd || 'init';
let root = document.getElementById('__rr_overlay_root');
if (!root) {
root = document.createElement('div');
root.id = '__rr_overlay_root';
Object.assign(root.style, {
position: 'fixed',
right: '8px',
bottom: '8px',
zIndex: 2_147_483_647,
maxWidth: '40vw',
maxHeight: '40vh',
overflow: 'auto',
background: 'rgba(0,0,0,0.6)',
color: '#fff',
fontFamily:
'ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace',
fontSize: '12px',
padding: '8px',
borderRadius: '6px',
boxShadow: '0 2px 8px rgba(0,0,0,0.3)',
});
const title = document.createElement('div');
title.textContent = 'Record-Replay 运行日志';
Object.assign(title.style, { fontWeight: 'bold', marginBottom: '6px' });
const body = document.createElement('div');
body.id = '__rr_overlay_body';
root.appendChild(title);
root.appendChild(body);
document.documentElement.appendChild(root);
}
const body = document.getElementById('__rr_overlay_body');
if (cmd === 'append' && body) {
const line = document.createElement('div');
line.textContent = String(request.text || '');
body.appendChild(line);
body.scrollTop = body.scrollHeight;
}
if (cmd === 'done' && root) {
root.style.opacity = '0.5';
}
sendResponse({ success: true });
return true;
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
// Element picker: start a temporary overlay to let user pick an element
if (request && request.action === 'rr_picker_start') {
try {
// state
const state = { active: true };
const hostId = '__rr_picker_host__';
let host = document.getElementById(hostId);
if (host) host.remove();
host = document.createElement('div');
host.id = hostId;
Object.assign(host.style, {
position: 'fixed',
inset: '0',
zIndex: 2147483646,
cursor: 'crosshair',
background: 'rgba(0,0,0,0.0)',
});
const box = document.createElement('div');
Object.assign(box.style, {
position: 'fixed',
border: '2px solid #3b82f6',
background: 'rgba(59,130,246,0.15)',
pointerEvents: 'none',
});
const tip = document.createElement('div');
tip.textContent = '点击选取元素（Esc 取消）';
Object.assign(tip.style, {
position: 'fixed',
top: '10px',
left: '10px',
background: 'rgba(0,0,0,0.7)',
color: '#fff',
padding: '6px 10px',
borderRadius: '6px',
fontSize: '12px',
fontFamily: 'system-ui,-apple-system,Segoe UI,Roboto,Arial',
});
host.appendChild(box);
host.appendChild(tip);
document.documentElement.appendChild(host);
const cleanup = () => {
try {
host.remove();
} catch {}
try {
document.removeEventListener('mousemove', onMove, true);
} catch {}
try {
document.removeEventListener('click', onClick, true);
} catch {}
try {
document.removeEventListener('keydown', onKey, true);
} catch {}
state.active = false;
};
const onMove = (e) => {
if (!state.active) return;
const el = e.target instanceof Element ? e.target : null;
if (!el) return;
try {
const r = el.getBoundingClientRect();
Object.assign(box.style, {
left: `${Math.round(r.left)}px`,
top: `${Math.round(r.top)}px`,
width: `${Math.round(Math.max(0, r.width))}px`,
height: `${Math.round(Math.max(0, r.height))}px`,
display: r.width > 0 && r.height > 0 ? 'block' : 'none',
});
} catch {}
};
const uniqueClassSelector = (node) => {
try {
const classes = Array.from(node.classList || []).filter(
(c) => c && /^[a-zA-Z0-9_-]+$/.test(c),
);
for (const cls of classes) {
const sel = `.${CSS.escape(cls)}`;
if (document.querySelectorAll(sel).length === 1) return sel;
}
const tag = node.tagName ? node.tagName.toLowerCase() : '';
for (const cls of classes) {
const sel = `${tag}.${CSS.escape(cls)}`;
if (document.querySelectorAll(sel).length === 1) return sel;
}
for (let i = 0; i < Math.min(classes.length, 3); i++) {
for (let j = i + 1; j < Math.min(classes.length, 3); j++) {
const sel = `.${CSS.escape(classes[i])}.${CSS.escape(classes[j])}`;
if (document.querySelectorAll(sel).length === 1) return sel;
}
}
} catch {}
return '';
};
const computeCandidates = (el) => {
const cands = [];
// css by id / class / short path
if (el.id) {
const idSel = `#${CSS.escape(el.id)}`;
if (document.querySelectorAll(idSel).length === 1)
cands.push({ type: 'css', value: idSel });
}
const classSel = uniqueClassSelector(el);
if (classSel) cands.push({ type: 'css', value: classSel });
// data-* and name
for (const attr of ['data-testid', 'data-cy', 'name']) {
const val = el.getAttribute(attr);
if (val) {
const s = `[${attr}="${CSS.escape(val)}"]`;
if (document.querySelectorAll(s).length === 1)
cands.push({ type: 'attr', value: s });
}
}
// aria
const aria = el.getAttribute && el.getAttribute('aria-label');
if (aria) cands.push({ type: 'aria', value: `textbox[name=${aria}]` });
// text for clickable
const tag = (el.tagName || '').toLowerCase();
if (['button', 'a', 'summary'].includes(tag)) {
const text = (el.textContent || '').trim();
if (text) cands.push({ type: 'text', value: text.substring(0, 64) });
}
// fallback path selector
const gen = (node) => {
if (!(node instanceof Element)) return '';
let path = '';
let current = node;
while (
current &&
current.nodeType === Node.ELEMENT_NODE &&
current.tagName !== 'BODY'
) {
let sel = current.tagName.toLowerCase();
const parent = current.parentElement;
if (parent) {
const siblings = Array.from(parent.children).filter(
(child) => child.tagName === current.tagName,
);
if (siblings.length > 1) {
const index = siblings.indexOf(current) + 1;
sel += `:nth-of-type(${index})`;
}
}
path = path ? `${sel} > ${path}` : sel;
current = parent;
}
return path ? `body > ${path}` : 'body';
};
const pathSel = gen(el);
if (pathSel) cands.push({ type: 'css', value: pathSel });
return cands;
};
const onClick = (e) => {
if (!state.active) return;
e.preventDefault();
e.stopPropagation();
const el = e.target instanceof Element ? e.target : null;
if (!el) {
cleanup();
sendResponse({ success: false, error: 'no element' });
return true;
}
// create ref
try {
if (!window.__claudeElementMap) window.__claudeElementMap = {};
if (!window.__claudeRefCounter) window.__claudeRefCounter = 0;
} catch {}
let refId = null;
try {
for (const k in window.__claudeElementMap) {
if (
window.__claudeElementMap[k].deref &&
window.__claudeElementMap[k].deref() === el
) {
refId = k;
break;
}
}
if (!refId) {
refId = `ref_${++window.__claudeRefCounter}`;
window.__claudeElementMap[refId] = new WeakRef(el);
}
} catch {}
const cands = computeCandidates(el);
cleanup();
sendResponse({ success: true, ref: refId, candidates: cands });
return true;
};
const onKey = (e) => {
if (e.key === 'Escape') {
cleanup();
sendResponse({ success: false, cancelled: true });
}
};
document.addEventListener('mousemove', onMove, true);
document.addEventListener('click', onClick, true);
document.addEventListener('keydown', onKey, true);
return true; // async
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
if (request && request.action === 'rr_picker_stop') {
try {
const host = document.getElementById('__rr_picker_host__');
if (host) host.remove();
sendResponse({ success: true });
return true;
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
if (request && request.action === 'generateAccessibilityTree') {
const result = __generateAccessibilityTree(request.filter || null, {
maxDepth: request.depth,
refId: request.refId,
});
if (result && result.error) {
sendResponse({ success: false, error: result.error });
return true;
}
sendResponse({ success: true, ...result });
return true;
}
if (request && request.action === 'ensureRefForSelector') {
try {
// Composite selector support: "frameSelector |> innerSelector"
const maybeSel = String(request.selector || '').trim();
const allowMultiple = !!request.allowMultiple;
if (maybeSel.includes('|>')) {
try {
const parts = maybeSel
.split('|>')
.map((s) => s.trim())
.filter(Boolean);
if (parts.length >= 2) {
const frameSel = parts[0];
const innerSel = parts.slice(1).join(' |> ');
// Find target frame element in current document
let frameEl = null;
try {
frameEl = querySelectorDeepFirst(frameSel) || document.querySelector(frameSel);
} catch {}
if (
!frameEl ||
!(frameEl instanceof HTMLIFrameElement || frameEl instanceof HTMLFrameElement)
) {
sendResponse({
success: false,
error: `Composite frame selector not found: ${frameSel}`,
});
return true;
}
const cw = frameEl.contentWindow;
if (!cw) {
sendResponse({
success: false,
error: 'Unable to obtain contentWindow of target frame',
});
return true;
}
// Bridge to child frame via postMessage with timeout
const reqId = `rrc_${Date.now()}_${Math.random().toString(36).slice(2, 8)}`;
const BRIDGE_TIMEOUT_MS = 5000; // 5 second timeout for iframe bridge
let responded = false;
let timeoutHandle = null;
const cleanup = () => {
window.removeEventListener('message', listener, true);
if (timeoutHandle) {
clearTimeout(timeoutHandle);
timeoutHandle = null;
}
};
const listener = (ev) => {
try {
const data = ev && ev.data;
if (
!data ||
data.type !== 'rr-bridge-ensure-ref-result' ||
data.reqId !== reqId
)
return;
// Validate source is the expected frame (security check)
if (ev.source !== cw) return;
if (responded) return; // Already timed out
responded = true;
cleanup();
if (data.success) {
sendResponse({
success: true,
ref: data.ref,
center: data.center,
href: data.href,
});
} else {
sendResponse({ success: false, error: data.error || 'child failed' });
}
} catch (e) {
if (!responded) {
responded = true;
cleanup();
sendResponse({
success: false,
error: String(e && e.message ? e.message : e),
});
}
}
};
// Set up timeout to prevent infinite wait
timeoutHandle = setTimeout(() => {
if (!responded) {
responded = true;
cleanup();
sendResponse({
success: false,
error: `iframe bridge timeout after ${BRIDGE_TIMEOUT_MS}ms`,
});
}
}, BRIDGE_TIMEOUT_MS);
window.addEventListener('message', listener, true);
cw.postMessage(
{
type: 'rr-bridge-ensure-ref',
reqId,
selector: innerSel,
useText: !!request.useText,
isXPath: !!request.isXPath,
tagName: String(request.tagName || ''),
allowMultiple: !!request.allowMultiple,
},
'*',
);
return true; // async response via message bridge
}
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
// Support CSS selector, XPath, or visible text search
const useText = !!request.useText;
const textQuery = String(request.text || '').trim();
const sel = String(request.selector || '').trim();
const isXPath = !!request.isXPath;
const limitTag = String(request.tagName || '')
.trim()
.toUpperCase();
let el = null;
if (useText && textQuery) {
const normalize = (s) =>
String(s || '')
.replace(/\s+/g, ' ')
.trim()
.toLowerCase();
const query = normalize(textQuery);
const bigrams = (s) => {
const arr = [];
for (let i = 0; i < s.length - 1; i++) arr.push(s.slice(i, i + 2));
return arr;
};
const dice = (a, b) => {
if (!a || !b) return 0;
const A = bigrams(a);
const B = bigrams(b);
if (A.length === 0 || B.length === 0) return 0;
let inter = 0;
const map = new Map();
for (const t of A) map.set(t, (map.get(t) || 0) + 1);
for (const t of B) {
const c = map.get(t) || 0;
if (c > 0) {
inter++;
map.set(t, c - 1);
}
}
return (2 * inter) / (A.length + B.length);
};
let best = { el: null, score: 0 };
// Deep traversal including shadow roots
const stack = [document.documentElement];
let visited = 0;
while (stack.length) {
const node = /** @type {any} */ (stack.pop());
if (!node || !(node instanceof Element)) continue;
try {
if (limitTag && String(node.tagName || '').toUpperCase() !== limitTag) {
// still traverse into children/shadow for performance? yes
} else {
const cs = window.getComputedStyle(node);
if (cs.display === 'none' || cs.visibility === 'hidden' || cs.opacity === '0') {
/* skip hidden */
} else {
const rect = /** @type {HTMLElement} */ (node).getBoundingClientRect();
if (rect.width > 0 && rect.height > 0) {
const txt = normalize(node.textContent || '');
if (txt) {
if (txt.includes(query)) {
el = /** @type {Element} */ (node);
break;
}
const sc = dice(txt, query);
if (sc > best.score)
best = { el: /** @type {Element} */ (node), score: sc };
}
}
}
}
} catch {}
// push children and shadow children
try {
const children = node.children || [];
for (let i = 0; i < children.length; i++) stack.push(children[i]);
} catch {}
try {
const sr = node.shadowRoot;
if (sr && sr.children) {
for (let i = 0; i < sr.children.length; i++) stack.push(sr.children[i]);
}
} catch {}
if (++visited > 8000) break;
}
if (!el && best.el && best.score >= 0.6) el = best.el;
} else if (isXPath) {
if (!sel) {
sendResponse({ success: false, error: 'selector is required' });
return true;
}
const result = queryXPathWithUniquenessCheck(sel, allowMultiple);
if (result.error) {
sendResponse({ success: false, error: result.error });
return true;
}
if (result.matchCount === 0) {
sendResponse({ success: false, error: `selector not found: ${sel}` });
return true;
}
if (!allowMultiple && result.matchCount > 1) {
sendResponse({
success: false,
error: `Selector "${sel}" matched multiple elements. Please refine the selector to match only one element.`,
});
return true;
}
el = result.element;
} else {
if (!sel) {
sendResponse({ success: false, error: 'selector is required' });
return true;
}
const result = querySelectorWithUniquenessCheck(sel, allowMultiple);
if (result.error) {
sendResponse({ success: false, error: result.error });
return true;
}
if (result.matchCount === 0) {
sendResponse({ success: false, error: `selector not found: ${sel}` });
return true;
}
if (!allowMultiple && result.matchCount > 1) {
sendResponse({
success: false,
error: `Selector "${sel}" matched multiple elements. Please refine the selector to match only one element.`,
});
return true;
}
el = result.element;
}
if (!el) {
sendResponse({ success: false, error: `selector not found: ${sel}` });
return true;
}
let refId = null;
for (const k in window.__claudeElementMap) {
if (window.__claudeElementMap[k].deref && window.__claudeElementMap[k].deref() === el) {
refId = k;
break;
}
}
if (!refId) {
refId = `ref_${++window.__claudeRefCounter}`;
window.__claudeElementMap[refId] = new WeakRef(el);
}
const rect = /** @type {HTMLElement} */ (el).getBoundingClientRect();
sendResponse({
success: true,
ref: refId,
center: {
x: Math.round(rect.left + rect.width / 2),
y: Math.round(rect.top + rect.height / 2),
},
});
return true;
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
if (request && request.action === 'dispatchHoverForRef') {
handleHoverForRef(String(request.ref || '').trim())
.then((result) => sendResponse(result))
.catch((error) =>
sendResponse({ success: false, error: error?.message || String(error) }),
);
return true;
}
if (request && request.action === 'getAttributeForSelector') {
try {
const sel = String(request.selector || '').trim();
const name = String(request.name || '').trim();
if (!sel || !name) {
sendResponse({ success: false, error: 'selector and name are required' });
return true;
}
const el = document.querySelector(sel) || querySelectorDeepFirst(sel);
if (!el) {
sendResponse({ success: false, error: `selector not found: ${sel}` });
return true;
}
let value = null;
if (name === 'text' || name === 'textContent') {
value = (el.textContent || '').trim();
} else if (name === 'value') {
try {
value = /** @type {HTMLInputElement} */ (el).value ?? null;
} catch (_) {
value = el.getAttribute('value');
}
} else {
value = el.getAttribute(name);
}
sendResponse({ success: true, value });
return true;
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
if (request && request.action === 'collectVariables') {
try {
let vars = Array.isArray(request.variables) ? request.variables : [];
if ((!vars || vars.length === 0) && request.payload) {
try {
const p = JSON.parse(String(request.payload || '{}'));
if (Array.isArray(p.variables)) vars = p.variables;
} catch {}
}
const useOverlay = request.useOverlay !== false; // default true
const values = {};
if (!useOverlay) {
for (const v of vars) {
const key = String(v && v.key ? v.key : '');
if (!key) continue;
const label = v.label || key;
const def = v.default || '';
const promptText = `请输入参数 ${label} (${key})`;
let val = window.prompt(promptText, def);
if (typeof val !== 'string') val = def;
values[key] = val;
}
sendResponse({ success: true, values });
return true;
}
// Build overlay form
const hostId = '__rr_var_overlay__';
let host = document.getElementById(hostId);
if (host) host.remove();
host = document.createElement('div');
host.id = hostId;
Object.assign(host.style, {
position: 'fixed',
inset: '0',
background: 'rgba(0,0,0,0.35)',
zIndex: 2147483646,
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
});
const panel = document.createElement('div');
Object.assign(panel.style, {
background: '#fff',
borderRadius: '8px',
width: 'min(520px, 96vw)',
maxHeight: '80vh',
overflow: 'auto',
boxShadow: '0 8px 24px rgba(0,0,0,0.2)',
padding: '16px',
fontFamily: 'system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif',
});
const title = document.createElement('div');
title.textContent = '请输入回放参数';
Object.assign(title.style, { fontSize: '16px', fontWeight: '600', marginBottom: '12px' });
const form = document.createElement('form');
for (const v of vars) {
const row = document.createElement('div');
Object.assign(row.style, { marginBottom: '10px' });
const label = document.createElement('label');
label.textContent = `${v.label || v.key}${v.sensitive ? ' (敏感)' : ''}`;
Object.assign(label.style, {
display: 'block',
marginBottom: '6px',
fontWeight: '500',
});
const input = document.createElement('input');
input.type = v.sensitive ? 'password' : 'text';
input.name = String(v.key);
input.value = String(v.default || '');
Object.assign(input.style, {
width: '100%',
boxSizing: 'border-box',
padding: '8px 10px',
border: '1px solid #d0d7de',
borderRadius: '6px',
outline: 'none',
});
row.appendChild(label);
row.appendChild(input);
form.appendChild(row);
}
const actions = document.createElement('div');
Object.assign(actions.style, { display: 'flex', gap: '8px', marginTop: '12px' });
const ok = document.createElement('button');
ok.type = 'submit';
ok.textContent = '确定';
Object.assign(ok.style, {
background: '#0969da',
color: '#fff',
border: 'none',
padding: '8px 16px',
borderRadius: '6px',
cursor: 'pointer',
});
const cancel = document.createElement('button');
cancel.type = 'button';
cancel.textContent = '取消';
Object.assign(cancel.style, {
background: '#f3f4f6',
color: '#111',
border: '1px solid #d0d7de',
padding: '8px 16px',
borderRadius: '6px',
cursor: 'pointer',
});
actions.appendChild(ok);
actions.appendChild(cancel);
panel.appendChild(title);
panel.appendChild(form);
panel.appendChild(actions);
host.appendChild(panel);
document.documentElement.appendChild(host);
const cleanup = () => {
try {
host.remove();
} catch {}
};
cancel.onclick = () => {
cleanup();
sendResponse({ success: false, cancelled: true });
};
form.onsubmit = (e) => {
e.preventDefault();
for (const v of vars) {
const el = form.querySelector(`input[name="${CSS.escape(String(v.key))}"]`);
if (el) values[v.key] = /** @type {HTMLInputElement} */ (el).value;
}
cleanup();
sendResponse({ success: true, values });
};
return true; // async
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
if (request && request.action === 'resolveRef') {
const ref = request.ref;
try {
const map = window.__claudeElementMap;
const weak = map && map[ref];
const el = weak && typeof weak.deref === 'function' ? weak.deref() : null;
if (!el || !(el instanceof Element)) {
sendResponse({ success: false, error: `ref "${ref}" not found or expired` });
return true;
}
const rect = /** @type {HTMLElement} */ (el).getBoundingClientRect();
sendResponse({
success: true,
rect: { x: rect.x, y: rect.y, width: rect.width, height: rect.height },
center: {
x: Math.round(rect.left + rect.width / 2),
y: Math.round(rect.top + rect.height / 2),
},
selector: (function () {
// Simple selector generation inline to avoid duplication
const generateSelector = function (node) {
if (!(node instanceof Element)) return '';
if (node.id) {
const idSel = `#${CSS.escape(node.id)}`;
if (document.querySelectorAll(idSel).length === 1) return idSel;
}
// prefer unique class selectors if available
try {
const classes = Array.from(node.classList || []).filter(
(c) => c && /^[a-zA-Z0-9_-]+$/.test(c),
);
for (const cls of classes) {
const sel = `.${CSS.escape(cls)}`;
if (document.querySelectorAll(sel).length === 1) return sel;
}
const tag = node.tagName ? node.tagName.toLowerCase() : '';
for (const cls of classes) {
const sel = `${tag}.${CSS.escape(cls)}`;
if (document.querySelectorAll(sel).length === 1) return sel;
}
for (let i = 0; i < Math.min(classes.length, 3); i++) {
for (let j = i + 1; j < Math.min(classes.length, 3); j++) {
const sel = `.${CSS.escape(classes[i])}.${CSS.escape(classes[j])}`;
if (document.querySelectorAll(sel).length === 1) return sel;
}
}
} catch {}
for (const attr of ['data-testid', 'data-cy', 'name']) {
const val = node.getAttribute(attr);
if (val) {
const s = `[${attr}="${CSS.escape(val)}"]`;
if (document.querySelectorAll(s).length === 1) return s;
}
}
let path = '';
let current = node;
while (
current &&
current.nodeType === Node.ELEMENT_NODE &&
current.tagName !== 'BODY'
) {
let sel = current.tagName.toLowerCase();
const parent = current.parentElement;
if (parent) {
const siblings = Array.from(parent.children).filter(
(c) => c.tagName === current.tagName,
);
if (siblings.length > 1) {
const idx = siblings.indexOf(current) + 1;
sel += `:nth-of-type(${idx})`;
}
}
path = path ? `${sel} > ${path}` : sel;
current = parent;
}
return path ? `body > ${path}` : 'body';
};
return generateSelector(el);
})(),
});
return true;
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
if (request && request.action === 'verifyFingerprint') {
try {
const ref = String(request.ref || '').trim();
const fingerprint = String(request.fingerprint || '').trim();
if (!ref || !fingerprint) {
sendResponse({ success: false, error: 'ref and fingerprint are required' });
return true;
}
const map = window.__claudeElementMap;
const weak = map && map[ref];
const el = weak && typeof weak.deref === 'function' ? weak.deref() : null;
if (!el || !(el instanceof Element)) {
sendResponse({ success: false, error: `ref "${ref}" not found or expired` });
return true;
}
// 验证指纹：解析存储的指纹并与当前元素对比
const parts = fingerprint.split('|');
const storedTag = parts[0] || 'unknown';
const currentTag = el.tagName ? String(el.tagName).toLowerCase() : 'unknown';
// Tag 必须匹配
if (storedTag !== currentTag) {
sendResponse({ success: true, match: false });
return true;
}
// 如果存储的指纹有 id，当前元素必须有相同的 id
const storedIdPart = parts.find((p) => p.startsWith('id='));
if (storedIdPart) {
const storedId = storedIdPart.slice(3);
const currentId = el.id ? String(el.id).trim() : '';
if (storedId !== currentId) {
sendResponse({ success: true, match: false });
return true;
}
}
sendResponse({ success: true, match: true });
return true;
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
if (request && request.action === 'focusByRef') {
try {
const ref = String(request.ref || '');
const map = window.__claudeElementMap || {};
const weak = map[ref];
const el = weak && typeof weak.deref === 'function' ? weak.deref() : null;
if (!el || !(el instanceof Element)) {
sendResponse({ success: false, error: `ref "${ref}" not found or expired` });
return true;
}
try {
/** @type {HTMLElement} */ (el).scrollIntoView({
behavior: 'instant',
block: 'center',
inline: 'nearest',
});
} catch {}
try {
/** @type {HTMLElement} */ (el).focus && /** @type {HTMLElement} */ (el).focus();
} catch {}
sendResponse({ success: true });
return true;
} catch (e) {
sendResponse({ success: false, error: String(e && e.message ? e.message : e) });
return true;
}
}
} catch (e) {
sendResponse({ success: false, error: e && e.message ? e.message : String(e) });
return true;
}
return false;
});
console.log('Accessibility tree helper script loaded');
// Cross-frame bridge: child listens for ensure-ref requests from parent (composite selector)
try {
window.addEventListener(
'message',
(ev) => {
try {
const data = ev && ev.data;
// Handle hover-ref bridge requests from parent frame
if (data && data.type === 'rr-bridge-hover-ref') {
handleHoverForRef(data.ref)
.then((result) => {
ev.source?.postMessage(
{ type: 'rr-bridge-hover-ref-result', reqId: data.reqId, result },
'*',
);
})
.catch((error) => {
ev.source?.postMessage(
{
type: 'rr-bridge-hover-ref-result',
reqId: data.reqId,
result: { success: false, error: error?.message || String(error) },
},
'*',
);
});
return;
}
if (!data || data.type !== 'rr-bridge-ensure-ref') return;
const { reqId, selector, useText, isXPath, tagName } = data || {};
const respond = (payload) => {
try {
ev.source &&
ev.source.postMessage(
{ type: 'rr-bridge-ensure-ref-result', reqId, ...payload },
'*',
);
} catch {}
};
try {
const sel = String(selector || '').trim();
const limitTag = String(tagName || '')
.trim()
.toUpperCase();
let el = null;
if (useText && sel) {
const normalize = (s) =>
String(s || '')
.replace(/\s+/g, ' ')
.trim()
.toLowerCase();
const query = normalize(sel);
const bigrams = (s) => {
const arr = [];
for (let i = 0; i < s.length - 1; i++) arr.push(s.slice(i, i + 2));
return arr;
};
const dice = (a, b) => {
if (!a || !b) return 0;
const A = bigrams(a),
B = bigrams(b);
if (!A.length || !B.length) return 0;
let inter = 0;
const m = new Map();
for (const t of A) m.set(t, (m.get(t) || 0) + 1);
for (const t of B) {
const c = m.get(t) || 0;
if (c > 0) {
inter++;
m.set(t, c - 1);
}
}
return (2 * inter) / (A.length + B.length);
};
let best = { el: null, score: 0 };
const stack = [document.documentElement];
while (stack.length) {
const node = stack.pop();
if (!node || !(node instanceof Element)) continue;
try {
if (limitTag && String(node.tagName || '').toUpperCase() !== limitTag) {
} else {
const cs = window.getComputedStyle(node);
if (cs.display !== 'none' && cs.visibility !== 'hidden' && cs.opacity !== '0') {
const rect = node.getBoundingClientRect();
if (rect.width > 0 && rect.height > 0) {
const txt = normalize(node.textContent || '');
if (txt) {
if (txt.includes(query)) {
el = node;
break;
}
const sc = dice(txt, query);
if (sc > best.score) best = { el: node, score: sc };
}
}
}
}
} catch {}
try {
const children = node.children || [];
for (let i = 0; i < children.length; i++) stack.push(children[i]);
const sr = node.shadowRoot;
if (sr && sr.children)
for (let i = 0; i < sr.children.length; i++) stack.push(sr.children[i]);
} catch {}
}
if (!el && best.el) el = best.el;
} else if (isXPath) {
if (!sel) {
respond({ success: false, error: 'selector is required' });
return;
}
const allowMultiple = !!data.allowMultiple;
const result = queryXPathWithUniquenessCheck(sel, allowMultiple);
if (result.error) {
respond({ success: false, error: result.error });
return;
}
if (result.matchCount === 0) {
respond({ success: false, error: `Selector "${sel}" not found in child frame` });
return;
}
if (!allowMultiple && result.matchCount > 1) {
respond({
success: false,
error: `Selector "${sel}" matched multiple elements inside frame. Please refine the selector to match only one element.`,
});
return;
}
el = result.element;
} else {
if (!sel) {
respond({ success: false, error: 'selector is required' });
return;
}
const allowMultiple = !!data.allowMultiple;
const result = querySelectorWithUniquenessCheck(sel, allowMultiple);
if (result.error) {
respond({ success: false, error: result.error });
return;
}
if (result.matchCount === 0) {
respond({ success: false, error: `Selector "${sel}" not found in child frame` });
return;
}
if (!allowMultiple && result.matchCount > 1) {
respond({
success: false,
error: `Selector "${sel}" matched multiple elements inside frame. Please refine the selector to match only one element.`,
});
return;
}
el = result.element;
}
if (!el || !(el instanceof Element)) {
respond({ success: false, error: 'Element not found in child frame' });
return;
}
if (!window.__claudeElementMap) window.__claudeElementMap = {};
if (!window.__claudeRefCounter) window.__claudeRefCounter = 0;
let refId = null;
for (const k in window.__claudeElementMap) {
const w = window.__claudeElementMap[k];
if (w && typeof w.deref === 'function' && w.deref && w.deref() === el) {
refId = k;
break;
}
}
if (!refId) {
refId = `ref_${++window.__claudeRefCounter}`;
window.__claudeElementMap[refId] = new WeakRef(el);
}
const rect = el.getBoundingClientRect();
respond({
success: true,
ref: refId,
center: {
x: Math.round(rect.left + rect.width / 2),
y: Math.round(rect.top + rect.height / 2),
},
href: String(location && location.href ? location.href : ''),
});
} catch (e) {
respond({ success: false, error: String(e && e.message ? e.message : e) });
}
} catch {}
},
true,
);
} catch {}
})();
