// ==UserScript==
// @name AI Chat Auto-Scroll Blocker
// @name:zh-CN 锁定聊天页面滚动 ChatGPT & Gemini & Claude
// @namespace https://greasyfork.org/
// @version 1.0
// @description Prevents ChatGPT, Gemini, and Claude from auto-scrolling during conversations, giving you full control over your reading experience
// @description:zh-CN 每次在ChatGPT或Gemini提问时，页面总是自动滚动到底部，我还没看完上一个答案就被强制跳到新答案了，非常影响体验
// @author Efficient Lazy Panda
// @match https://chatgpt.com/*
// @match https://chat.openai.com/*
// @match https://gemini.google.com/*
// @match https://bard.google.com/*
// @match https://claude.ai/*
// @grant none
// @run-at document-start
// @license MIT
// ==/UserScript==
(function() {
'use strict';
let scrollBlocked = true; // 默认阻止自动滚动
let originalScrollIntoView = null;
let originalScrollTo = null;
let originalScrollTop = null;
// 阻止自动滚动
function blockAutoScroll() {
// 保存原始函数
if (!originalScrollIntoView) {
originalScrollIntoView = Element.prototype.scrollIntoView;
originalScrollTo = window.scrollTo;
originalScrollTop = Object.getOwnPropertyDescriptor(Element.prototype, 'scrollTop') ||
Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'scrollTop');
}
Element.prototype.scrollIntoView = function(options) {
if (scrollBlocked) {
console.log('阻止了 scrollIntoView 调用');
return false;
}
return originalScrollIntoView.call(this, options);
};
window.scrollTo = function(x, y) {
if (scrollBlocked) {
// 只阻止向下滚动
if (y > window.scrollY) {
console.log('阻止了向下 scrollTo 调用:', x, y);
return false;
}
}
return originalScrollTo.call(this, x, y);
};
if (originalScrollTop) {
Object.defineProperty(Element.prototype, 'scrollTop', {
get: function() {
return originalScrollTop.get ? originalScrollTop.get.call(this) : 0;
},
set: function(value) {
if (scrollBlocked && value > this.scrollTop) {
console.log('阻止了向下滚动设置 scrollTop:', value);
return;
}
if (originalScrollTop && originalScrollTop.set) {
originalScrollTop.set.call(this, value);
}
}
});
}
}
// 智能滚动阻止系统
function preventScrollEvents() {
let lastScrollTime = 0;
let scrollAttempts = 0;
// 阻止自动滚动，但允许手动滚动
document.addEventListener('scroll', function(e) {
const currentTime = Date.now();
const timeDiff = currentTime - lastScrollTime;
if (scrollBlocked) {
// 如果滚动间隔太短（可能是自动滚动）
if (timeDiff < 50) {
scrollAttempts++;
if (scrollAttempts > 3) {
console.log('检测到连续自动滚动，已阻止');
e.preventDefault();
e.stopPropagation();
return false;
}
} else {
scrollAttempts = 0;
}
}
lastScrollTime = currentTime;
window.lastScrollY = window.scrollY;
}, { capture: true, passive: false });
// 监听页面滚动行为变化
const originalSetTimeout = window.setTimeout;
window.setTimeout = function(callback, delay, ...args) {
if (scrollBlocked && delay > 0 && delay < 1000) {
// 检查回调函数是否可能执行滚动
const callbackStr = callback.toString();
if (callbackStr.includes('scroll') ||
callbackStr.includes('scrollIntoView') ||
callbackStr.includes('scrollTop')) {
console.log('阻止可能的自动滚动定时器');
return originalSetTimeout(() => {}, delay);
}
}
return originalSetTimeout.call(this, callback, delay, ...args);
};
}
// ChatGPT 特定的防滚动修复
function applyChatGPTFix() {
let lastScrollPosition = 0;
const observer = new MutationObserver((mutations) => {
if (scrollBlocked) {
mutations.forEach((mutation) => {
if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
mutation.addedNodes.forEach((node) => {
if (node.nodeType === 1) {
const selectors = [
'[data-testid^="conversation-turn"]',
'[role="presentation"]',
'.group.w-full',
'.flex.w-full.items-center',
'article',
'.prose',
'[data-message-author-role]'
];
let foundMessage = false;
selectors.forEach(selector => {
if (node.matches && node.matches(selector) ||
node.querySelector && node.querySelector(selector)) {
foundMessage = true;
}
});
if (foundMessage) {
console.log('检测到 ChatGPT 新消息，阻止自动滚动');
setTimeout(() => {
if (window.scrollY > lastScrollPosition + 50) {
window.scrollTo(0, lastScrollPosition);
}
}, 100);
}
}
});
}
});
}
lastScrollPosition = window.scrollY;
});
window.addEventListener('scroll', () => {
if (!scrollBlocked) {
lastScrollPosition = window.scrollY;
}
});
observer.observe(document.body, {
childList: true,
subtree: true,
attributes: true
});
setInterval(() => {
if (scrollBlocked) {
const currentScroll = window.scrollY;
if (currentScroll > lastScrollPosition + 100) {
console.log('ChatGPT: 阻止意外的大幅滚动');
window.scrollTo(0, lastScrollPosition);
}
}
}, 200);
}
function applyGeminiFix() {
let lastScrollPosition = 0;
const observer = new MutationObserver((mutations) => {
if (scrollBlocked) {
mutations.forEach((mutation) => {
if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
mutation.addedNodes.forEach((node) => {
if (node.nodeType === 1) {
const selectors = [
'[data-message-id]',
'.model-response-container',
'.conversation-container',
'[role="log"]',
'.response-container'
];
let foundMessage = false;
selectors.forEach(selector => {
if (node.matches && node.matches(selector) ||
node.querySelector && node.querySelector(selector)) {
foundMessage = true;
}
});
if (foundMessage) {
console.log('检测到 Gemini 新消息，阻止自动滚动');
setTimeout(() => {
if (window.scrollY > lastScrollPosition + 50) {
window.scrollTo(0, lastScrollPosition);
}
}, 100);
}
}
});
}
});
}
lastScrollPosition = window.scrollY;
});
window.addEventListener('scroll', () => {
if (!scrollBlocked) {
lastScrollPosition = window.scrollY;
}
});
observer.observe(document.body, {
childList: true,
subtree: true,
attributes: true
});
setInterval(() => {
if (scrollBlocked) {
const currentScroll = window.scrollY;
if (currentScroll > lastScrollPosition + 100) {
console.log('Gemini: 阻止意外的大幅滚动');
window.scrollTo(0, lastScrollPosition);
}
}
}, 200);
}
// Claude AI 的防滚动修复
function applyClaudeFix() {
let lastScrollPosition = 0;
const observer = new MutationObserver((mutations) => {
if (scrollBlocked) {
mutations.forEach((mutation) => {
if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
mutation.addedNodes.forEach((node) => {
if (node.nodeType === 1) {
const selectors = [
'[data-testid="message"]',
'.font-user-message',
'.font-claude-message',
'.message',
'.conversation-message'
];
let foundMessage = false;
selectors.forEach(selector => {
if (node.matches && node.matches(selector) ||
node.querySelector && node.querySelector(selector)) {
foundMessage = true;
}
});
if (foundMessage) {
console.log('检测到 Claude AI 新消息，阻止自动滚动');
setTimeout(() => {
if (window.scrollY > lastScrollPosition + 50) {
window.scrollTo(0, lastScrollPosition);
}
}, 100);
}
}
});
}
});
}
lastScrollPosition = window.scrollY;
});
window.addEventListener('scroll', () => {
if (!scrollBlocked) {
lastScrollPosition = window.scrollY;
}
});
observer.observe(document.body, {
childList: true,
subtree: true,
attributes: true
});
setInterval(() => {
if (scrollBlocked) {
const currentScroll = window.scrollY;
if (currentScroll > lastScrollPosition + 100) {
console.log('Claude AI: 阻止意外的大幅滚动');
window.scrollTo(0, lastScrollPosition);
}
}
}, 200);
}
// 检测网站类型并应用相应的防滚动策略
function detectSiteAndApplyFix() {
const hostname = window.location.hostname;
if (hostname.includes('chatgpt.com') || hostname.includes('openai.com')) {
console.log('检测到 ChatGPT 网站，启用防自动滚动');
applyChatGPTFix();
} else if (hostname.includes('gemini.google.com') || hostname.includes('bard.google.com')) {
console.log('检测到 Gemini 网站，启用防自动滚动');
applyGeminiFix();
} else if (hostname.includes('claude.ai')) {
console.log('检测到 Claude AI 网站，启用防自动滚动');
applyClaudeFix();
}
}
// 初始化脚本
function init() {
console.log('ChatGPT & Gemini & Claude 防自动滚动脚本 v1.0 已启动');
// 应用滚动阻止
blockAutoScroll();
// 阻止滚动事件
preventScrollEvents();
// 检测并应用网站特定修复
detectSiteAndApplyFix();
}
// 立即运行初始化
init();
})();
