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One-click AI autofill for Google Forms using Gemini with optional one-time instruction override + quick cleaner
// ==UserScript==
// @name Google Forms: AI Form Filler (Gemini)
// @namespace https://www.fiverr.com/web_coder_nsd
// @version 1.1.2
// @icon https://cdn-icons-png.flaticon.com/512/720/720311.png
// @description One-click AI autofill for Google Forms using Gemini with optional one-time instruction override + quick cleaner
// @match https://docs.google.com/forms/*/viewform
// @grant none
// @license MIT
// ==/UserScript==
(() => {
// UI buttons
const btn = document.createElement('button'); // Run
const btnEdit = document.createElement('button'); // One-time prompt
const btnClean = document.createElement('button'); // Clean all
Object.assign(btn.style, {
position: 'fixed', right: '16px', top: '25px', zIndex: 2147483647,
width: '44px', height: '44px', borderRadius: '50%', border: '0',
background: '#111', color: '#fff', fontSize: '14px', lineHeight: '44px',
textAlign: 'center', cursor: 'pointer', boxShadow: '0 6px 16px rgba(0,0,0,.28)', userSelect: 'none'
});
btn.textContent = '▶';
document.documentElement.appendChild(btn);
Object.assign(btnEdit.style, {
position: 'fixed', right: '9px', top: '19px', zIndex: 2147483647,
width: '24px', height: '24px', borderRadius: '50%', border: '0',
background: '#444', color: '#fff', fontSize: '17px', lineHeight: '14px',
textAlign: 'center', cursor: 'pointer', boxShadow: '0 6px 16px rgba(0,0,0,.28)', userSelect: 'none'
});
btnEdit.title = 'Add one-time instructions';
btnEdit.textContent = '✎';
document.documentElement.appendChild(btnEdit);
Object.assign(btnClean.style, {
position: 'fixed', right: '16px', top: '72px', zIndex: 2147483647,
width: '44px', height: '44px', borderRadius: '50%', border: '0',
background: '#7a1d1d', color: '#fff', fontSize: '18px', lineHeight: '44px',
textAlign: 'center', cursor: 'pointer', boxShadow: '0 6px 16px rgba(0,0,0,.28)', userSelect: 'none'
});
btnClean.title = 'Clear all inputs';
btnClean.textContent = '🧹';
document.documentElement.appendChild(btnClean);
// one-time extra instructions, cleared after each run
let sessionExtraInstructions = '';
btnEdit.addEventListener('click', () => {
const next = prompt('One-time instructions for this run only.\nExample: "email should be [email protected]"');
if (next == null) return;
sessionExtraInstructions = (next || '').trim();
btnEdit.style.background = sessionExtraInstructions ? '#0a7' : '#444';
});
// drag all three as a group (drag using main ▶ button)
let drag = { x: 0, y: 0, sx: 0, sy: 0, down: false };
const onDown = (e) => {
drag.down = true; drag.sx = e.clientX; drag.sy = e.clientY;
const r = btn.getBoundingClientRect(); drag.x = r.left; drag.y = r.top; e.preventDefault();
};
const onMove = (e) => {
if (!drag.down) return;
const nx = drag.x + (e.clientX - drag.sx);
const ny = drag.y + (e.clientY - drag.sy);
[ [btn, 0], [btnClean, 47] ].forEach(([el, dy]) => {
el.style.left = nx + 'px'; el.style.top = (ny + dy) + 'px';
el.style.right = 'auto'; el.style.bottom = 'auto';
});
// the small ✎ button sits near the ▶ button
btnEdit.style.left = (nx + 28) + 'px';
btnEdit.style.top = (ny - 6) + 'px';
btnEdit.style.right = 'auto';
btnEdit.style.bottom = 'auto';
};
const onUp = () => { drag.down = false; };
btn.addEventListener('mousedown', onDown);
window.addEventListener('mousemove', onMove);
window.addEventListener('mouseup', onUp);
const sleep = (ms) => new Promise(r => setTimeout(r, ms));
// Gemini client
class GeminiClient {
constructor() {
this.baseUrl = 'https://generativelanguage.googleapis.com/v1beta/models';
this.primaryModel = 'gemini-2.0-flash';
this.fallbackModel = 'gemini-1.5-flash';
this.apiKey = null;
}
async init() {
if (!this.apiKey) {
let k = localStorage.getItem('gemini_api_key');
if (!k) {
k = prompt('Enter Gemini API key');
if (!k) throw new Error('API key is required');
localStorage.setItem('gemini_api_key', k.trim());
}
this.apiKey = k.trim();
}
}
async fetchFromModel(model, prompt) {
const res = await fetch(`${this.baseUrl}/${model}:generateContent?key=${this.apiKey}`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ contents: [{ parts: [{ text: prompt }] }] })
});
return res;
}
async generateContent(prompt) {
if (!this.apiKey) await this.init();
let response = await this.fetchFromModel(this.primaryModel, prompt);
if (response.status === 429) response = await this.fetchFromModel(this.fallbackModel, prompt);
if (!response.ok) throw new Error(`HTTP error ${response.status}`);
const data = await response.json();
return data.candidates?.[0]?.content?.parts?.[0]?.text || '';
}
}
// DOM helpers
const getClosestListItem = (el) => el.closest('[role="listitem"]') || el.closest('.Qr7Oae') || el.closest('.geS5n');
const getHeadingText = (container) => {
let t = '';
if (!container) return t;
const heading = container.querySelector('[role="heading"] .M7eMe') || container.querySelector('[role="heading"]') || container.querySelector('.HoXoMd .M7eMe');
if (heading) t = heading.textContent.trim();
return t || (container.querySelector('label, .aDTYNe, .OIC90c')?.textContent?.trim() || '');
};
const plain = (s) => (s || '').replace(/\s+/g, ' ').trim();
const uid = () => Math.random().toString(36).slice(2, 10);
const clamp = (n, lo, hi) => Math.max(lo, Math.min(hi, n));
const isVisible = (el) => !!(el && el.offsetParent !== null);
// prompt builder
function buildPrompt(schema, oneTimeExtra) {
const now = new Date().toISOString();
const extraBlock = oneTimeExtra
? `\nUser instructions for this run only. If they conflict, override defaults:\n${oneTimeExtra}\n`
: '';
return `
You are a data faker for autofilling Google Forms. Decide realistic but safe dummy values from the provided schema.
Rules:
- Only use provided options for radio, checkbox, and select.
- For "date" fields, return ISO YYYY-MM-DD. Respect "min" and "max" if given, otherwise pick within ±365 days from today.
- For "time" fields, return {"hour":1-12,"minute":0-59,"meridiem":"AM|PM"}.
- Keep text answers short and plausible. Email looks like a real address.
- Return STRICT JSON only. No markdown.
${extraBlock}
Schema (JSON):
${JSON.stringify(schema, null, 2)}
Output JSON array of objects, each:
{ "id": "<schema.id>", "value": <string | string[] | {"hour":number,"minute":number,"meridiem":string}> }
Now generate values. Current time: ${now}.
`;
}
// safe JSON
function safeJson(txt) {
const cleaned = txt.trim().replace(/^```(?:json)?/i, '').replace(/```$/, '').trim();
try { return JSON.parse(cleaned); } catch (e) {
const m = cleaned.match(/\[[\s\S]*\]|\{[\s\S]*\}/);
if (m) return JSON.parse(m[0]);
throw e;
}
}
// setters
function setNativeValue(el, value) {
let proto = el; let setter = null;
while ((proto = Object.getPrototypeOf(proto)) && !setter) {
const d = Object.getOwnPropertyDescriptor(proto, 'value');
if (d && typeof d.set === 'function') setter = d.set;
}
if (setter) setter.call(el, value); else el.value = value;
el.dispatchEvent(new Event('input', { bubbles: true }));
el.dispatchEvent(new Event('change', { bubbles: true }));
}
// Select helpers
function clickOptionInListbox(listbox, wanted) {
const norm = (s) => (s || '').replace(/\s+/g, ' ').trim().toLowerCase();
const open = () => { if (listbox.getAttribute('aria-expanded') === 'false') listbox.click(); };
const close = () => { if (listbox.getAttribute('aria-expanded') === 'true') listbox.click(); };
open();
let popup = Array.from(document.querySelectorAll('.OA0qNb[jsname="V68bde"]')).find(m => isVisible(m));
let options = popup ? Array.from(popup.querySelectorAll('[role="option"]'))
: Array.from(listbox.querySelectorAll('[role="option"]'));
let target = options.find(o => norm(o.getAttribute('data-value')) === norm(wanted))
|| options.find(o => norm(o.textContent) === norm(wanted))
|| options.find(o => {
const txt = norm(o.getAttribute('data-value') || o.textContent);
return txt && txt !== 'choose';
});
if (target) target.click();
close();
}
function resetListboxToChooseOrFirst(listbox) {
const open = () => { if (listbox.getAttribute('aria-expanded') === 'false') listbox.click(); };
const close = () => { if (listbox.getAttribute('aria-expanded') === 'true') listbox.click(); };
open();
let popup = Array.from(document.querySelectorAll('.OA0qNb[jsname="V68bde"]')).find(m => isVisible(m));
let options = popup ? Array.from(popup.querySelectorAll('[role="option"]'))
: Array.from(listbox.querySelectorAll('[role="option"]'));
// Prefer "Choose" / empty value
let target = options.find(o => /choose/i.test(o.textContent || '') || (o.getAttribute('data-value') || '') === '');
if (!target && options.length) target = options[0];
if (target) target.click();
close();
}
// CLEARING LOGIC
function clearCheckboxesOnly() {
// Uncheck all checked checkboxes (requested: auto-remove previously set checkmarks before run)
Array.from(document.querySelectorAll('[role="checkbox"][aria-checked="true"]')).forEach(cb => cb.click());
}
function clearAllInputs() {
// Text-like inputs
document.querySelectorAll('input.whsOnd[type="text"], input.whsOnd[type="email"], input.whsOnd[type="number"]').forEach(el => setNativeValue(el, ''));
// Textareas
document.querySelectorAll('textarea').forEach(el => setNativeValue(el, ''));
// Dates
document.querySelectorAll('input[type="date"].whsOnd').forEach(el => setNativeValue(el, ''));
// Time (Hour/Minute)
document.querySelectorAll('.PfQ8Lb input[aria-label="Hour"]').forEach(el => setNativeValue(el, ''));
document.querySelectorAll('.PfQ8Lb input[aria-label="Minute"]').forEach(el => setNativeValue(el, ''));
// Time AM/PM reset to first option (usually AM)
document.querySelectorAll('.PfQ8Lb [role="listbox"][aria-label="AM or PM"]').forEach(lb => resetListboxToChooseOrFirst(lb));
// Checkboxes
Array.from(document.querySelectorAll('[role="checkbox"][aria-checked="true"]')).forEach(cb => cb.click());
// Radios (try to deselect active; Forms may keep one selected if required)
Array.from(document.querySelectorAll('[role="radio"][aria-checked="true"]')).forEach(r => r.click());
// Select listboxes reset to default
document.querySelectorAll('[role="listbox"].jgvuAb, [role="listbox"].cGN2le, [role="listbox"].t9kgXb').forEach(lb => resetListboxToChooseOrFirst(lb));
}
btnClean.addEventListener('click', () => {
clearAllInputs();
});
// fill from plan
async function fillFromPlan(plan) {
document.querySelectorAll('[data-ai-field-id^="text_"]').forEach(input => {
const id = input.dataset.aiFieldId;
const p = plan.find(x => x.id === id);
if (p && typeof p.value === 'string') setNativeValue(input, p.value);
});
document.querySelectorAll('[data-ai-field-id^="textarea_"]').forEach(ta => {
const id = ta.dataset.aiFieldId;
const p = plan.find(x => x.id === id);
if (p && typeof p.value === 'string') setNativeValue(ta, p.value);
});
document.querySelectorAll('[role="radiogroup"][data-ai-field-id]').forEach(group => {
const id = group.dataset.aiFieldId;
const p = plan.find(x => x.id === id);
if (!p || typeof p.value !== 'string') return;
const target = Array.from(group.querySelectorAll('[role="radio"]')).find(r => {
const v = r.getAttribute('data-value') || r.getAttribute('aria-label') || r.textContent;
return plain(v).toLowerCase() === plain(p.value).toLowerCase();
}) || Array.from(group.querySelectorAll('[role="radio"]'))[0];
if (target) target.click();
});
const groupIds = new Set(plan.filter(p => Array.isArray(p.value) || typeof p.value === 'string').map(p => p.id));
groupIds.forEach(id => {
const planned = plan.find(p => p.id === id);
const values = Array.isArray(planned?.value) ? planned.value : [planned?.value].filter(Boolean);
const cbs = Array.from(document.querySelectorAll(`[role="checkbox"][data-ai-field-id="${id}"]`));
cbs.forEach(cb => { if (cb.getAttribute('aria-checked') === 'true') cb.click(); });
values.forEach(val => {
const target = cbs.find(cb => {
const v = cb.getAttribute('data-answer-value') || cb.getAttribute('aria-label') || cb.textContent;
return plain(v).toLowerCase() === plain(val).toLowerCase();
}) || null;
if (target) target.click();
});
});
document.querySelectorAll('[role="listbox"][data-ai-field-id^="select_"]').forEach(lb => {
const id = lb.dataset.aiFieldId;
const p = plan.find(x => x.id === id);
if (!p || typeof p.value !== 'string') return;
clickOptionInListbox(lb, p.value);
});
document.querySelectorAll('input[type="date"][data-ai-field-id^="date_"]').forEach(dateEl => {
const id = dateEl.dataset.aiFieldId;
const p = plan.find(x => x.id === id);
const min = dateEl.getAttribute('min');
const max = dateEl.getAttribute('max');
const value = (p && typeof p.value === 'string') ? p.value : randDate(min, max);
setNativeValue(dateEl, value);
});
const timeGroups = {};
document.querySelectorAll('[data-ai-field-id^="time_"]').forEach(el => {
const id = el.dataset.aiFieldId.replace(/_(hour|minute|ampm)$/, '');
if (!timeGroups[id]) timeGroups[id] = {};
if (/_hour$/.test(el.dataset.aiFieldId)) timeGroups[id].hourEl = el;
if (/_minute$/.test(el.dataset.aiFieldId)) timeGroups[id].minuteEl = el;
if (/_ampm$/.test(el.dataset.aiFieldId)) timeGroups[id].ampmEl = el;
});
Object.keys(timeGroups).forEach(id => {
const grp = timeGroups[id];
const p = plan.find(x => x.id === id);
let obj = null;
if (p && typeof p.value === 'object' && p.value) {
obj = { hour: clamp(parseInt(p.value.hour, 10) || 9, 1, 12),
minute: clamp(parseInt(p.value.minute, 10) || 0, 0, 59),
meridiem: String(p.value.meridiem || 'AM').toUpperCase() };
} else if (p && typeof p.value === 'string') {
obj = parseTimeLike(p.value);
}
if (!obj) obj = { hour: 10, minute: 30, meridiem: 'AM' };
if (grp.hourEl) setNativeValue(grp.hourEl, String(obj.hour).padStart(2, '0'));
if (grp.minuteEl) setNativeValue(grp.minuteEl, String(obj.minute).padStart(2, '0'));
if (grp.ampmEl) clickOptionInListbox(grp.ampmEl, obj.meridiem);
});
}
// schema scraper
async function scrapeSchema() {
const schema = [];
document.querySelectorAll('input[type="text"].whsOnd, input[type="email"].whsOnd, input[type="number"].whsOnd').forEach((input, idx) => {
const wrap = getClosestListItem(input);
const label = getHeadingText(wrap);
const id = `text_${idx}_${uid()}`;
input.dataset.aiFieldId = id;
schema.push({ id, type: 'text', label: plain(label), required: input.required || /[*]$/.test(label) });
});
document.querySelectorAll('textarea.KHxj8b, textarea').forEach((ta, idx) => {
const wrap = getClosestListItem(ta);
const label = getHeadingText(wrap);
const id = `textarea_${idx}_${uid()}`;
ta.dataset.aiFieldId = id;
schema.push({ id, type: 'textarea', label: plain(label), required: ta.required || /[*]$/.test(label) });
});
document.querySelectorAll('[role="radiogroup"]').forEach((rg, idx) => {
const wrap = getClosestListItem(rg);
const label = getHeadingText(wrap);
const options = Array.from(rg.querySelectorAll('[role="radio"]')).map(r => {
const v = r.getAttribute('data-value') || r.getAttribute('aria-label') || r.textContent;
return plain(v);
}).filter(Boolean);
if (!options.length) return;
const id = `radio_${idx}_${uid()}`;
rg.dataset.aiFieldId = id;
schema.push({ id, type: 'radio', label: plain(label), options: Array.from(new Set(options)) });
});
const checkboxEls = Array.from(document.querySelectorAll('[role="checkbox"][data-answer-value], [role="checkbox"][aria-label]'));
const groups = new Map();
checkboxEls.forEach((cb) => {
const wrap = getClosestListItem(cb);
const groupLabel = getHeadingText(wrap) || 'Checkbox Group';
const fieldId = cb.getAttribute('data-field-id') || groupLabel;
const key = `${groupLabel}::${fieldId}`;
if (!groups.has(key)) groups.set(key, []);
const v = cb.getAttribute('data-answer-value') || cb.getAttribute('aria-label') || cb.textContent;
groups.get(key).push({ el: cb, value: plain(v) });
});
let cidx = 0;
for (const [key, items] of groups.entries()) {
const [groupLabel] = key.split('::');
const id = `checkbox_${cidx++}_${uid()}`;
items.forEach(i => { i.el.dataset.aiFieldId = id; });
const options = Array.from(new Set(items.map(i => i.value))).filter(Boolean);
if (options.length) schema.push({ id, type: 'checkbox', label: plain(groupLabel), options });
}
// Select listboxes and floating popup
const listboxes = Array.from(document.querySelectorAll('[role="listbox"].jgvuAb, [role="listbox"].cGN2le, [role="listbox"].t9kgXb'));
for (let idx = 0; idx < listboxes.length; idx++) {
const lb = listboxes[idx];
const wrap = getClosestListItem(lb);
const label = getHeadingText(wrap) || 'Select';
const id = `select_${idx}_${uid()}`;
lb.dataset.aiFieldId = id;
if (lb.getAttribute('aria-expanded') === 'false') lb.click();
await sleep(10);
let popup = Array.from(document.querySelectorAll('.OA0qNb[jsname="V68bde"]')).find(m => isVisible(m));
let opts = popup
? Array.from(popup.querySelectorAll('[role="option"]')).map(o => plain(o.getAttribute('data-value') || o.textContent))
: Array.from(lb.querySelectorAll('[role="option"]')).map(o => plain(o.getAttribute('data-value') || o.textContent));
if (lb.getAttribute('aria-expanded') === 'true') lb.click();
opts = opts.filter(v => v && !/^choose$/i.test(v));
if (opts.length) schema.push({ id, type: 'select', label: plain(label), options: Array.from(new Set(opts)) });
}
document.querySelectorAll('input[type="date"].whsOnd').forEach((dateEl, idx) => {
const wrap = getClosestListItem(dateEl);
const label = getHeadingText(wrap) || 'Date';
const id = `date_${idx}_${uid()}`;
dateEl.dataset.aiFieldId = id;
schema.push({
id, type: 'date', label: plain(label),
min: dateEl.getAttribute('min') || null,
max: dateEl.getAttribute('max') || null
});
});
document.querySelectorAll('.PfQ8Lb').forEach((timeWrap, idx) => {
const wrap = getClosestListItem(timeWrap);
const label = getHeadingText(wrap) || 'Time';
const hour = timeWrap.querySelector('input[aria-label="Hour"]');
const minute = timeWrap.querySelector('input[aria-label="Minute"]');
const meridianBox = timeWrap.querySelector('[role="listbox"][aria-label="AM or PM"]');
if (hour && minute && meridianBox) {
const id = `time_${idx}_${uid()}`;
hour.dataset.aiFieldId = `${id}_hour`;
minute.dataset.aiFieldId = `${id}_minute`;
meridianBox.dataset.aiFieldId = `${id}_ampm`;
const options = Array.from(meridianBox.querySelectorAll('[role="option"]')).map(o => plain(o.getAttribute('data-value') || o.textContent));
schema.push({ id, type: 'time', label: plain(label), options: Array.from(new Set(options)) });
}
});
return schema;
}
// main
async function run() {
const original = btn.textContent;
btn.disabled = true; btn.textContent = '...';
try {
// Auto-remove previously set checkmarks (checkboxes) before running fill
clearCheckboxesOnly();
const schema = await scrapeSchema();
if (!schema.length) throw new Error('No fields detected');
const prompt = buildPrompt(schema, sessionExtraInstructions);
// clear one-time instructions after use
sessionExtraInstructions = '';
btnEdit.style.background = '#444';
const gemini = new GeminiClient();
const txt = await gemini.generateContent(prompt);
const plan = safeJson(txt);
await fillFromPlan(plan);
btn.textContent = '✓';
await sleep(1200);
} catch (e) {
console.error(e);
alert(e.message || 'AI fill failed');
} finally {
btn.disabled = false; btn.textContent = original;
}
}
btn.addEventListener('click', run);
})();