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Click elements to get their CSS selector instantly
// ==UserScript==
// @name CSS Selector Copy
// @namespace https://greasyfork.org/
// @version 1.0
// @description Click elements to get their CSS selector instantly
// @author Bui Quoc Dung
// @match *://*/*
// @grant GM_setClipboard
// @grant GM_addStyle
// ==/UserScript==
(function() {
'use strict';
// Add styles for our dialog
GM_addStyle(`
.instant-selector-dialog {
position: fixed;
z-index: 999999;
background: white;
border-radius: 8px;
box-shadow: 0 4px 20px rgba(0,0,0,0.15);
padding: 16px;
max-width: 400px;
width: 90%;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
animation: dialogFadeIn 0.15s ease-out;
border: 1px solid #e0e0e0;
}
@keyframes dialogFadeIn {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}
.selector-header {
font-size: 16px;
font-weight: 600;
margin-bottom: 12px;
color: #202124;
display: flex;
align-items: center;
gap: 8px;
}
.selector-header svg {
width: 18px;
height: 18px;
fill: #5f6368;
}
.selector-display {
background: #f8f9fa;
border-radius: 6px;
padding: 12px;
font-family: 'Roboto Mono', monospace;
font-size: 13px;
line-height: 1.5;
margin-bottom: 16px;
max-height: 200px;
overflow-y: auto;
border: 1px solid #e0e0e0;
white-space: pre-wrap;
word-break: break-all;
}
.selector-options {
display: flex;
gap: 16px;
margin-bottom: 16px;
padding-bottom: 16px;
border-bottom: 1px solid #f1f1f1;
}
.option-radio {
display: flex;
align-items: center;
gap: 6px;
cursor: pointer;
font-size: 14px;
}
.selector-buttons {
display: flex;
justify-content: flex-end;
gap: 8px;
}
.selector-button {
padding: 8px 16px;
border-radius: 4px;
font-weight: 500;
font-size: 14px;
cursor: pointer;
border: none;
transition: all 0.2s;
}
.copy-button {
background: #1a73e8;
color: white;
}
.copy-button:hover {
background: #1765cc;
box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.copy-button.copied {
background: #34a853;
}
.close-button {
background: transparent;
color: #5f6368;
border: 1px solid #dadce0;
}
.close-button:hover {
background: #f8f9fa;
}
`);
// Create dialog element
const dialog = document.createElement('div');
dialog.className = 'instant-selector-dialog';
dialog.style.display = 'none';
document.body.appendChild(dialog);
// Add dialog content
dialog.innerHTML = `
<div class="selector-header">
<svg viewBox="0 0 24 24"><path d="M19 3h-4.18C14.4 1.84 13.3 1 12 1c-1.3 0-2.4.84-2.82 2H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm-7 0c.55 0 1 .45 1 1s-.45 1-1 1-1-.45-1-1 .45-1 1-1zm4 12h-2v2c0 .55-.45 1-1 1s-1-.45-1-1v-2H9v-2h2v-2c0-.55.45-1 1-1s1 .45 1 1v2h2v2z"></path></svg>
<span>CSS Selector</span>
</div>
<div class="selector-display" id="selector-display"></div>
<div class="selector-options">
<label class="option-radio">
<input type="radio" name="selector-option" value="with" checked> With :nth-of-type
</label>
<label class="option-radio">
<input type="radio" name="selector-option" value="without"> Without :nth-of-type
</label>
</div>
<div class="selector-buttons">
<button class="selector-button copy-button" id="copy-button">Copy</button>
<button class="selector-button close-button" id="close-button">Close</button>
</div>
`;
// Get references to dialog elements
const selectorDisplay = dialog.querySelector('#selector-display');
const copyButton = dialog.querySelector('#copy-button');
const closeButton = dialog.querySelector('#close-button');
const optionRadios = dialog.querySelectorAll('input[name="selector-option"]');
// Your improved selector function
function getFullCssSelector(el, includeNth = true) {
if (!(el instanceof Element)) return;
const path = [];
while (el) {
let selector = el.nodeName.toLowerCase();
if (el.id) {
selector += "#" + el.id;
path.unshift(selector);
break;
} else {
if (el.className && typeof el.className === 'string') {
const classes = el.className.trim().split(/\s+/).join(".");
if (classes) selector += "." + classes;
}
if (includeNth) {
let sibling = el, nth = 1;
while ((sibling = sibling.previousElementSibling)) {
if (sibling.nodeName === el.nodeName) nth++;
}
selector += `:nth-of-type(${nth})`;
}
path.unshift(selector);
el = el.parentElement;
}
}
return path.join(" > ");
}
// Position and show dialog
function showDialog(element, event) {
const includeNth = dialog.querySelector('input[name="selector-option"]:checked').value === 'with';
const selector = getFullCssSelector(element, includeNth);
selectorDisplay.textContent = selector;
// Position dialog near the click
const x = event.clientX;
const y = event.clientY;
dialog.style.left = `${Math.min(x + 20, window.innerWidth - 420)}px`;
dialog.style.top = `${Math.min(y + 20, window.innerHeight - dialog.offsetHeight - 20)}px`;
dialog.style.display = 'block';
}
// Hide dialog
function hideDialog() {
dialog.style.display = 'none';
}
// Handle copy button click
copyButton.addEventListener('click', () => {
GM_setClipboard(selectorDisplay.textContent, 'text');
copyButton.textContent = 'Copied!';
copyButton.classList.add('copied');
setTimeout(() => {
copyButton.textContent = 'Copy';
copyButton.classList.remove('copied');
}, 2000);
});
// Handle close button click
closeButton.addEventListener('click', hideDialog);
// Close dialog when clicking outside
document.addEventListener('click', (e) => {
if (dialog.style.display === 'block' && !dialog.contains(e.target)) {
hideDialog();
}
});
// Close with Escape key
document.addEventListener('keydown', (e) => {
if (e.key === 'Escape' && dialog.style.display === 'block') {
hideDialog();
}
});
// Handle Ctrl+Click or Alt+Click on elements
document.addEventListener('click', (e) => {
// Only activate with Ctrl+Click or Alt+Click to avoid conflict with normal clicks
if (e.ctrlKey || e.altKey) {
e.preventDefault();
e.stopPropagation();
showDialog(e.target, e);
}
}, true);
})();