Twitter/X Max Image

Load max-res Twitter/X images, auto-hide when idle

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Twitter/X Max Image
// @namespace    http://tampermonkey.net/
// @version      1.9
// @description  Load max-res Twitter/X images, auto-hide when idle
// @match        https://pbs.twimg.com/*
// @grant        GM_xmlhttpRequest
// @grant        GM_download
// @connect      pbs.twimg.com
// @run-at       document-start
// @author       nereids
// @icon         https://icons.duckduckgo.com/ip3/x.com.ico
// @license      MIT
// ==/UserScript==

(function () {
  'use strict';

  // --------- Redirect logic (loop-safe, try orig/original/no-name) ----------
  if (location.hostname === 'pbs.twimg.com') {
    const triedKey = 'pbs-max-redirected';
    if (sessionStorage.getItem(triedKey) !== '1') {
      const currentURL = new URL(location.href);
      const currName = currentURL.searchParams.get('name');
      if (!['orig', 'original', null].includes(currName)) {
        const candidates = ['orig', 'original', null];

        function head(url) {
          return new Promise(resolve => {
            try {
              GM_xmlhttpRequest({
                method: 'HEAD',
                url,
                headers: { 'Accept': 'image/*' },
                onload: (res) => resolve(res && res.status === 200),
                onerror: () => resolve(false),
                ontimeout: () => resolve(false)
              });
            } catch (e) { resolve(false); }
          });
        }

        (async () => {
          for (const name of candidates) {
            const u = new URL(location.href);
            if (name === null) u.searchParams.delete('name');
            else u.searchParams.set('name', name);
            if (u.href === location.href) continue;
            const ok = await head(u.href);
            if (ok) {
              sessionStorage.setItem(triedKey, '1');
              location.replace(u.href);
              return;
            }
          }
          sessionStorage.setItem(triedKey, '1');
        })();
      } else {
        sessionStorage.setItem(triedKey, '1');
      }
    }
  }

  // --------- Add SVG download button ----------
  function addDownloadButton() {
    if (location.hostname !== 'pbs.twimg.com') return;
    if (document.getElementById('pbs-svg-dl-btn')) return;

    const imageUrl = location.href;

    const btn = document.createElement('button');
    btn.id = 'pbs-svg-dl-btn';
    btn.type = 'button';
    btn.title = 'Download image';
    Object.assign(btn.style, {
      position: 'fixed',
      right: '22px',
      bottom: '22px',
      width: '48px',
      height: '48px',
      borderRadius: '50%',
      border: 'none',
      padding: '0',
      display: 'flex',
      alignItems: 'center',
      justifyContent: 'center',
      cursor: 'pointer',
      zIndex: 2147483647,
      boxShadow: '0 8px 18px rgba(2,6,23,0.35)',
      background: '#1d9bf0',
      backdropFilter: 'blur(4px)',
      transition: 'transform .12s ease, box-shadow .12s ease, opacity 0.4s ease',
    });

    // --- CHANGE THIS SVG TO YOUR OWN IF YOU WANT ---
    btn.innerHTML = `
      <svg xmlns="http://www.w3.org/2000/svg" height="36px" viewBox="0 -960 960 960" width="36px" fill="#e3e3e3">
        <path d="M433-398v-329q0-20 13.5-33.5T480-774q20 0 33.5 13.5T527-727v331l118-118q14-14 33-14t33 14q14 14 14 33t-14 33L513-250q-14 14-34 14t-34-14L247-448q-14-14-14-33t14-33q14-14 33.5-14.5T314-515l119 117Z"/>
      </svg>
    `;

    // Download logic
    btn.addEventListener('click', async (e) => {
      e.stopPropagation();
      e.preventDefault();

      try {
        const urlObj = new URL(imageUrl);
        let fmt = (urlObj.searchParams.get('format') || '').toLowerCase();
        if (fmt === 'jfif' || fmt === 'jpeg') fmt = 'jpg';
        if (!fmt) {
          const pathExtMatch = urlObj.pathname.match(/\.([a-zA-Z0-9]+)$/);
          if (pathExtMatch) fmt = pathExtMatch[1].toLowerCase();
        }
        if (!fmt) fmt = 'jpg';

        let base = urlObj.pathname.split('/').pop() || 'image';
        base = base.replace(/\.[^/.]+$/, '');
        let filename = `${base}.${fmt}`;

        if (typeof GM_download === 'function') {
          try {
            GM_download({
              url: imageUrl,
              name: filename,
              onerror: () => fetchAndSave(imageUrl, filename)
            });
            return;
          } catch (err) { /* fallback */ }
        }
        await fetchAndSave(imageUrl, filename);
      } catch (err) {
        console.error('Download failed', err);
      }
    });

    function fetchAndSave(url, filename) {
      return fetch(url, { mode: 'cors' })
        .then(resp => {
          if (!resp.ok) throw new Error('Network not ok');
          return resp.blob().then(blob => {
            const ct = resp.headers.get('content-type') || '';
            let ext = filename.split('.').pop().toLowerCase();
            if (ct.includes('jpeg')) ext = 'jpg';
            if (ct.includes('png')) ext = 'png';
            if (ct.includes('webp')) ext = 'webp';
            if (!filename.toLowerCase().endsWith('.' + ext)) {
              filename = filename.replace(/\.[^/.]+$/, '') + '.' + ext;
            }
            const blobUrl = URL.createObjectURL(blob);
            const a = document.createElement('a');
            a.href = blobUrl;
            a.download = filename;
            document.body.appendChild(a);
            a.click();
            a.remove();
            setTimeout(() => URL.revokeObjectURL(blobUrl), 5000);
          });
        })
        .catch(err => {
          console.error('fetchAndSave failed', err);
          window.open(url, '_blank', 'noopener');
        });
    }

    // Append button
    const attach = () => { document.body && document.body.appendChild(btn); };
    if (document.body) attach();
    else document.addEventListener('DOMContentLoaded', attach);

    // --- Auto-hide logic ---
    let hideTimeout;
    function showButton() {
      btn.style.opacity = '1';
      btn.style.pointerEvents = 'auto';
      clearTimeout(hideTimeout);
      hideTimeout = setTimeout(hideButton, 1500); // hide after 1.5s
    }
    function hideButton() {
      btn.style.opacity = '0';
      btn.style.pointerEvents = 'none';
    }
    showButton();
    document.addEventListener('mousemove', showButton);
  }

  // Wait for DOM
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', addDownloadButton, { once: true });
  } else {
    setTimeout(addDownloadButton, 120);
  }

})();