Extract name, location, and username from Facebook profile pages and update the title
// ==UserScript==
// @name Facebook PageTitle updater
// @version 2.0
// @description Extract name, location, and username from Facebook profile pages and update the title
// @match https://www.facebook.com/*
// @grant none
// @namespace https://greasyfork.org/users/1409709
// ==/UserScript==
(function() {
'use strict';
let currentProfileID = '';
let titleObserver = null;
function extractInfo() {
const nameElement = document.querySelector('h1');
let name = nameElement ? nameElement.textContent.trim() : '';
const livesInElement = Array.from(document.querySelectorAll('div[role="main"] span[dir="auto"]')).find(el => el.textContent.includes('Lives in'));
let livesIn = livesInElement ? livesInElement.querySelector('a span').textContent.trim() : '';
const fromElement = Array.from(document.querySelectorAll('div[role="main"] span[dir="auto"]')).find(el => el.textContent.includes('From'));
let from = fromElement ? fromElement.querySelector('a span').textContent.trim() : '';
const url = window.location.href;
const profileIDMatch = url.match(/facebook\.com\/(?:profile\.php\?id=|([^/?&]+))/);
let profileID = '';
if (profileIDMatch && profileIDMatch[1]) {
profileID = profileIDMatch[1];
} else if (profileIDMatch && profileIDMatch[0]) {
profileID = profileIDMatch[0];
}
if (profileID && (name || livesIn || from)) {
const profileInfo = { name, livesIn, from, profileID };
localStorage.setItem(`profileInfo_${profileID}`, JSON.stringify(profileInfo));
currentProfileID = profileID;
updateTitle(profileInfo);
} else {
const storedProfileInfo = localStorage.getItem(`profileInfo_${profileID}`);
if (storedProfileInfo) {
updateTitle(JSON.parse(storedProfileInfo));
}
}
}
function updateTitle(profileInfo) {
let newTitle = '';
if (profileInfo.name) newTitle += `${profileInfo.name}`;
if (profileInfo.livesIn) newTitle += ` - ${profileInfo.livesIn}`;
if (profileInfo.from) newTitle += ` (From ${profileInfo.from})`;
const titleElement = document.querySelector('title');
if (titleElement && titleElement.textContent !== newTitle) {
if (titleObserver) {
titleObserver.disconnect();
} else {
titleObserver = new MutationObserver((mutations) => {
for (const mutation of mutations) {
if (mutation.type === 'childList') {
titleObserver.disconnect();
titleElement.textContent = newTitle;
titleObserver.observe(titleElement, { childList: true });
}
}
});
}
titleObserver.observe(titleElement, { childList: true });
titleElement.textContent = newTitle;
}
}
function monitorURLChanges() {
let lastURL = window.location.href;
setInterval(() => {
const currentURL = window.location.href;
if (currentURL !== lastURL) {
lastURL = currentURL;
const profileIDMatch = currentURL.match(/facebook\.com\/(?:profile\.php\?id=|([^/?&]+))/);
let newProfileID = '';
if (profileIDMatch && profileIDMatch[1]) {
newProfileID = profileIDMatch[1];
} else if (profileIDMatch && profileIDMatch[0]) {
newProfileID = profileIDMatch[0];
}
if (currentProfileID !== newProfileID) {
currentProfileID = newProfileID;
extractInfo();
} else {
const storedProfileInfo = localStorage.getItem(`profileInfo_${newProfileID}`);
if (storedProfileInfo) {
updateTitle(JSON.parse(storedProfileInfo));
}
}
}
}, 1000);
}
window.addEventListener('load', () => {
extractInfo();
monitorURLChanges();
});
})();