// ==UserScript==
// @name ChatGPT长对话加速
// @namespace npm/chatgpt-conversation-speedup
// @version 1.0
// @description 通过智能隐藏旧对话节点，显著降低 ChatGPT 长对话页面的内存占用与渲染卡顿。提供“加速”开关，开启后仅保留最近的对话内容，关闭后瞬间恢复全部历史。安全无损，不修改网页内容。
// @match https://chatgpt.com/*
// @grant none
// @license MIT
// @downloadURL https://update.greasyfork.icu/scripts/564338/ChatGPT%E9%95%BF%E5%AF%B9%E8%AF%9D%E5%8A%A0%E9%80%9F.user.js
// @updateURL https://update.greasyfork.icu/scripts/564338/ChatGPT%E9%95%BF%E5%AF%B9%E8%AF%9D%E5%8A%A0%E9%80%9F.meta.js
// ==/UserScript==
(function () {
'use strict';
/**
* Configuration Constants
* 可动态修改的状态参数
*/
let KEEP_VISIBLE = 8;
let HIDE_BEYOND = 10;
let IS_OPTIMIZED = true; // 默认开启优化
const BOOT_CHECK_INTERVAL = 500;
/**
* LocalStorage Key
* UI 状态持久化键名
*/
const UI_STATE_KEY = 'cgpt_pruner_ui_state_v2';
/**
* Get Conversation Turns
* 获取当前页面所有的对话节点DOM
*/
function getTurns() {
return Array.from(
document.querySelectorAll('article[data-testid^="conversation-turn"]')
);
}
/**
* Prune / Optimize Logic
* 核心优化逻辑：通过 display:none 隐藏非活跃区的对话节点
*/
function prune() {
const turns = getTurns();
const total = turns.length;
// 如果未开启优化，或者数量未达到阈值，则全部显示
if (!IS_OPTIMIZED || total <= HIDE_BEYOND) {
turns.forEach(el => {
if (el.style.display === 'none') el.style.display = '';
});
return;
}
// 开启优化：隐藏旧消息
const hideBefore = total - KEEP_VISIBLE;
for (let i = 0; i < total; i++) {
const el = turns[i];
if (i < hideBefore) {
if (el.style.display !== 'none') el.style.display = 'none';
} else {
if (el.style.display === 'none') el.style.display = '';
}
}
}
/**
* Start Observer
* 启动 DOM 监听，当新消息出现时触发优化
*/
function startObserver() {
const observer = new MutationObserver(prune);
observer.observe(document.body, { childList: true, subtree: true });
console.log('[ChatGPT Speedup] Observer started');
}
/**
* Wait for Chat Load
* 等待对话加载完成后初始化
*/
function waitForChat() {
const timer = setInterval(() => {
if (getTurns().length > 0) {
clearInterval(timer);
prune();
startObserver();
}
}, BOOT_CHECK_INTERVAL);
}
/**
* Create Settings Panel
* 创建配置面板 (Shadow DOM isolated)
*/
function createPanel() {
const host = document.createElement('div');
host.style.position = 'fixed';
host.style.bottom = '20px';
host.style.right = '20px';
host.style.zIndex = '10000'; // Ensure visibility
document.body.appendChild(host);
const shadow = host.attachShadow({ mode: 'open' });
shadow.innerHTML = `
`;
const $ = (id) => shadow.getElementById(id);
function setMinimized(minimized) {
$('panel').classList.toggle('hidden', minimized);
$('mini').classList.toggle('hidden', !minimized);
updateMiniDot();
saveState();
}
function updateMiniDot() {
if (IS_OPTIMIZED) $('miniDot').classList.remove('off');
else $('miniDot').classList.add('off');
}
function saveState() {
const state = {
minimized: $('panel').classList.contains('hidden'),
optimized: IS_OPTIMIZED,
keep: KEEP_VISIBLE,
threshold: HIDE_BEYOND
};
localStorage.setItem(UI_STATE_KEY, JSON.stringify(state));
}
function loadState() {
try {
const raw = localStorage.getItem(UI_STATE_KEY);
if (raw) {
const state = JSON.parse(raw);
setMinimized(state.minimized);
IS_OPTIMIZED = state.optimized;
KEEP_VISIBLE = state.keep;
HIDE_BEYOND = state.threshold;
} else {
setMinimized(false); // Default open first time
}
} catch (e) { console.error('Load state failed', e); }
}
// Apply Logic
function applySettings() {
IS_OPTIMIZED = $('masterToggle').checked;
KEEP_VISIBLE = parseInt($('keepVisible').value, 10) || 8;
HIDE_BEYOND = parseInt($('hideBeyond').value, 10) || 10;
prune();
updateMiniDot();
saveState();
}
// Events
$('masterToggle').onchange = applySettings; // Instant toggle
$('keepVisible').onchange = applySettings; // Auto apply
$('hideBeyond').onchange = applySettings; // Auto apply
$('minBtn').onclick = () => setMinimized(true);
$('mini').onclick = () => setMinimized(false);
// Init
loadState();
// Sync UI with loaded state
$('masterToggle').checked = IS_OPTIMIZED;
$('keepVisible').value = KEEP_VISIBLE;
$('hideBeyond').value = HIDE_BEYOND;
updateMiniDot();
// Initial Prune
prune();
}
waitForChat();
createPanel();
})();