Facebook DevTools Enabler

Restores right-click, context menu, and enables Eruda/dev tools on Facebook

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

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

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

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你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

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// ==UserScript==
// @name         Facebook DevTools Enabler
// @namespace    http://tampermonkey.net
// @version      1.1
// @description  Restores right-click, context menu, and enables Eruda/dev tools on Facebook
// @match        https://*.facebook.com/*
// @run-at       document-start
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // ==========================================
    // BLOCK RIGHT-CLICK PREVENTION
    // ==========================================
    
    // Store original addEventListener
    const originalAddEventListener = EventTarget.prototype.addEventListener;
    
    // Override addEventListener to block contextmenu prevention
    EventTarget.prototype.addEventListener = function(type, listener, options) {
        // Block contextmenu, selectstart, copy, cut, paste prevention
        const blockedEvents = ['contextmenu', 'selectstart', 'dragstart', 'copy', 'cut', 'paste'];
        
        if (blockedEvents.includes(type)) {
            console.log(`[DevTools Enabler] Blocked ${type} event listener`);
            return;
        }
        
        // Block keydown prevention for F12, Ctrl+Shift+I, etc.
        if (type === 'keydown' || type === 'keyup') {
            const wrappedListener = function(e) {
                // Allow dev tool shortcuts
                if (e.key === 'F12' || 
                    (e.ctrlKey && e.shiftKey && (e.key === 'I' || e.key === 'J' || e.key === 'C')) ||
                    (e.ctrlKey && e.key === 'U')) {
                    return;
                }
                return listener.call(this, e);
            };
            return originalAddEventListener.call(this, type, wrappedListener, options);
        }
        
        return originalAddEventListener.call(this, type, listener, options);
    };

    // ==========================================
    // REMOVE EXISTING BLOCKERS
    // ==========================================
    
    // Remove oncontextmenu, onselectstart, etc from document and body
    const removeBlockers = () => {
        if (document.documentElement) {
            document.documentElement.oncontextmenu = null;
            document.documentElement.onselectstart = null;
            document.documentElement.ondragstart = null;
        }
        if (document.body) {
            document.body.oncontextmenu = null;
            document.body.onselectstart = null;
            document.body.ondragstart = null;
        }
    };

    // Run immediately and on DOM ready
    removeBlockers();
    document.addEventListener('DOMContentLoaded', removeBlockers);

    // ==========================================
    // INJECT ERUDA (if not already loaded)
    // ==========================================
    
    const injectEruda = () => {
        if (window.eruda) return; // Already loaded
        
        const script = document.createElement('script');
        script.src = 'https://cdn.jsdelivr.net/npm/eruda';
        script.onload = () => {
            window.eruda.init({
                tool: ['console', 'elements', 'network', 'resources', 'info'],
                autoScale: true,
                defaults: { displaySize: 50 }
            });
            console.log('[DevTools Enabler] Eruda console initialized');
        };
        document.head.appendChild(script);
    };

    // ==========================================
    // BYPASS SECURITY POLICIES
    // ==========================================
    
    // Remove Content Security Policy restrictions
    const meta = document.createElement('meta');
    meta.httpEquiv = 'Content-Security-Policy';
    meta.content = "default-src * 'unsafe-inline' 'unsafe-eval' data: blob:; script-src * 'unsafe-inline' 'unsafe-eval'; style-src * 'unsafe-inline';";
    
    if (document.head) {
        document.head.appendChild(meta);
    } else {
        document.addEventListener('DOMContentLoaded', () => {
            document.head.appendChild(meta);
        });
    }

    // ==========================================
    // UNBLOCK DEV TOOLS SHORTCUTS
    // ==========================================
    
    window.addEventListener('keydown', (e) => {
        // Don't block F12 or Ctrl+Shift+I/J/C
        if (e.key === 'F12' || 
            (e.ctrlKey && e.shiftKey && ['I','J','C'].includes(e.key))) {
            e.stopImmediatePropagation();
        }
    }, true);

    // ==========================================
    // INIT
    // ==========================================
    
    console.log("[DevTools Enabler] Facebook restrictions bypassed");
    
    // Inject Eruda after a short delay to ensure page is ready
    setTimeout(injectEruda, 1000);
    
    // Re-apply blockers removal periodically
    setInterval(removeBlockers, 2000);

})();