Facebook PageTitle updater

Extract name, location, and username from Facebook profile pages and update the title
当前为 2025-02-11 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         Facebook PageTitle updater
// @version      1.1
// @description  Extract name, location, and username from Facebook profile pages and update the title
// @match        https://www.facebook.com/*
// @grant        none
// @namespace https://gf.qytechs.cn/users/1409709
// ==/UserScript==

(function() {
    'use strict';

    function extractInfo() {
        const nameElement = document.querySelector('h1.html-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;
        let username = '';
        const usernameMatch = url.match(/facebook\.com\/([^/?&]+)/);
        if (usernameMatch && usernameMatch[1] && !usernameMatch[1].includes('profile.php')) {
            username = usernameMatch[1];
        }

        let newTitle = '';
        if (name) newTitle += `${name}`;
        if (livesIn) newTitle += ` - ${livesIn}`;
        if (from) newTitle += ` (From ${from})`;
        if (username) newTitle += ` - ${username}`;

        const titleElement = document.querySelector('title');
        if (titleElement) titleElement.textContent = newTitle;
    }

    function monitorURLChanges() {
        let lastURL = window.location.href;

        setInterval(() => {
            const currentURL = window.location.href;
            if (currentURL !== lastURL) {
                lastURL = currentURL;
                extractInfo();
            }
        }, 1000);
    }

    window.addEventListener('load', () => {
        extractInfo();
        monitorURLChanges();

        const titleObserver = new MutationObserver(() => {
            extractInfo();
        });

        const titleElement = document.querySelector('title');
        if (titleElement) {
            titleObserver.observe(titleElement, { childList: true });
        }
    });
})();
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