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Nuclear Fullscreen Blocker

BLOCKS ALL fullscreen, including DRM video & browser-level tricks

当前为 2025-05-08 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Nuclear Fullscreen Blocker
  3. // @namespace    http://tampermonkey.net/
  4. // @version      3.0
  5. // @description  BLOCKS ALL fullscreen, including DRM video & browser-level tricks
  6. // @match        *://*/*
  7. // @run-at       document-start
  8. // @grant        unsafeWindow
  9. // ==/UserScript==
  10.  
  11. (function() {
  12.     'use strict';
  13.  
  14.     // ===== [1] BLOCK ALL FULLSCREEN APIs =====
  15.     const blockFullscreen = (element) => {
  16.         const descriptors = {
  17.             'requestFullscreen': null,
  18.             'webkitRequestFullscreen': null,
  19.             'mozRequestFullScreen': null,
  20.             'msRequestFullscreen': null,
  21.             'exitFullscreen': null,
  22.             'webkitExitFullscreen': null,
  23.             'mozCancelFullScreen': null,
  24.             'msExitFullscreen': null,
  25.             'fullscreenEnabled': false,
  26.             'webkitFullscreenEnabled': false,
  27.             'mozFullScreenEnabled': false,
  28.             'msFullscreenEnabled': false
  29.         };
  30.  
  31.         for (const [prop, value] of Object.entries(descriptors)) {
  32.             try {
  33.                 Object.defineProperty(element, prop, { 
  34.                     value, 
  35.                     writable: false, 
  36.                     configurable: false 
  37.                 });
  38.             } catch (e) {}
  39.         }
  40.     };
  41.  
  42.     // Block on document, HTML, and ALL elements
  43.     blockFullscreen(document);
  44.     blockFullscreen(HTMLElement.prototype);
  45.     blockFullscreen(Element.prototype);
  46.  
  47.     // ===== [2] MUTATIONOBSERVER (BLOCK NEW ELEMENTS) =====
  48.     const observer = new MutationObserver((mutations) => {
  49.         mutations.forEach((mutation) => {
  50.             mutation.addedNodes.forEach((node) => {
  51.                 if (node.nodeType === Node.ELEMENT_NODE) {
  52.                     blockFullscreen(node);
  53.                 }
  54.             });
  55.         });
  56.     });
  57.     observer.observe(document, { childList: true, subtree: true });
  58.  
  59.     // ===== [3] FORCE-EXIT FULLSCREEN EVERY SECOND =====
  60.     setInterval(() => {
  61.         if (document.fullscreenElement || 
  62.             document.webkitFullscreenElement || 
  63.             document.mozFullScreenElement || 
  64.             document.msFullscreenElement) {
  65.             document.exitFullscreen?.();
  66.             document.webkitExitFullscreen?.();
  67.             document.mozCancelFullScreen?.();
  68.             document.msExitFullscreen?.();
  69.         }
  70.     }, 100);
  71.  
  72.     // ===== [4] BLOCK F11, CTRL+ENTER, RIGHT-CLICK FULLSCREEN =====
  73.     document.addEventListener('keydown', (e) => {
  74.         if (e.key === 'F11' || (e.ctrlKey && e.key === 'Enter')) {
  75.             e.preventDefault();
  76.             e.stopImmediatePropagation();
  77.             return false;
  78.         }
  79.     }, true);
  80.  
  81.     document.addEventListener('contextmenu', (e) => {
  82.         e.preventDefault();
  83.     }, true);
  84.  
  85.     // ===== [5] OVERRIDE VIDEO PLAYER FULLSCREEN BUTTONS =====
  86.     document.addEventListener('DOMContentLoaded', () => {
  87.         document.querySelectorAll('button, div, [role="button"]').forEach((btn) => {
  88.             btn.addEventListener('click', (e) => {
  89.                 if (btn.innerText.includes('Fullscreen') || 
  90.                     btn.getAttribute('aria-label')?.includes('Fullscreen')) {
  91.                     e.stopImmediatePropagation();
  92.                     e.preventDefault();
  93.                 }
  94.             }, true);
  95.         });
  96.     });
  97. })();