Adds a floating navigation menu to quickly jump between prompts on ChatGPT, Gemini, and other chat platforms.
// ==UserScript==
// @name Notion 风格的 ChatGPT、Gemini 导航目录
// @namespace https://github.com/YuJian920
// @version 2.3.0
// @description Adds a floating navigation menu to quickly jump between prompts on ChatGPT, Gemini, and other chat platforms.
// @author YuJian
// @match https://chat.openai.com/*
// @match https://chatgpt.com/*
// @match https://gemini.google.com/*
// @match https://claude.ai/chat/*
// @grant none
// @license MIT
// ==/UserScript==
(function () {
"use strict";
const PLATFORMS = [
{
name: "ChatGPT",
hosts: ["chat.openai.com", "chatgpt.com"],
messageSelector: ".user-message-bubble-color",
},
{
name: "Gemini",
hosts: ["gemini.google.com"],
messageSelector: ".user-query-bubble-with-background",
},
{
name: "Claude",
hosts: ["claude.ai"],
messageSelector: ".bg-bg-300",
}
];
class PromptNavigator {
CONSTANTS = {
CONTAINER_ID: "prompt-nav-container",
INDICATOR_ID: "prompt-nav-indicator",
MENU_ID: "prompt-nav-menu",
INDICATOR_LINE_CLASS: "nav-indicator-line",
JIGGLE_EFFECT_CLASS: "prompt-nav-jiggle-effect",
ACTIVE_CLASS: "active",
MESSAGE_ID_PREFIX: "prompt-nav-item-",
SCROLL_OFFSET: 30,
JIGGLE_ANIMATION_DURATION: 400,
SCROLL_END_TIMEOUT: 150,
DEBOUNCE_BUILD_MS: 500,
THROTTLE_UPDATE_MS: 100,
INIT_DELAY_MS: 2000,
};
#platform = null;
#scrollParent = null;
#debouncedBuildNav = null;
#throttledUpdateActiveLink = null;
#idToElementMap = new Map();
constructor() {
this.#platform = this.#detectPlatform();
if (!this.#platform) return;
this.#debouncedBuildNav = this.#debounce(this.buildNav.bind(this), this.CONSTANTS.DEBOUNCE_BUILD_MS);
this.#throttledUpdateActiveLink = this.#throttle(this.updateActiveLink.bind(this), this.CONSTANTS.THROTTLE_UPDATE_MS);
}
init() {
if (!this.#platform) {
console.log("Prompt Navigator: No supported platform detected.");
return;
}
setTimeout(() => {
this.#addStyles();
this.#setupObservers();
this.#setupEventListeners();
this.buildNav();
}, this.CONSTANTS.INIT_DELAY_MS);
}
buildNav() {
const messages = document.querySelectorAll(this.#platform.messageSelector);
if (messages.length === this.#idToElementMap.size && messages.length > 0) {
let allMatch = true;
let i = 0;
for (const mappedElement of this.#idToElementMap.values()) {
if (mappedElement !== messages[i]) {
allMatch = false;
break;
}
i++;
}
if (allMatch) {
return;
}
}
this.#scrollParent = null;
this.#idToElementMap.clear();
const navItems = [];
messages.forEach((msg, index) => {
const messageId = `${this.CONSTANTS.MESSAGE_ID_PREFIX}${index}`;
this.#idToElementMap.set(messageId, msg);
const trimmedText = msg.textContent.trim();
const text = trimmedText ? `${trimmedText.substring(0, 50)}...` : `Item ${index + 1}`;
navItems.push({ id: messageId, text: text });
});
const existingContainer = document.getElementById(this.CONSTANTS.CONTAINER_ID);
if (existingContainer) {
existingContainer.remove();
}
if (navItems.length === 0) return;
const container = this.#createContainer();
const indicator = this.#createIndicator(navItems);
const menu = this.#createMenu(navItems);
container.append(menu, indicator);
document.body.appendChild(container);
this.updateActiveLink();
}
updateActiveLink() {
let lastVisibleMessageId = null;
const highlightThreshold = window.innerHeight * 0.4;
for (const [id, msg] of this.#idToElementMap.entries()) {
if (!document.body.contains(msg)) {
continue;
}
if (msg.getBoundingClientRect().top < highlightThreshold) {
lastVisibleMessageId = id;
} else {
break;
}
}
const links = document.querySelectorAll(`#${this.CONSTANTS.MENU_ID} li a`);
const indicatorLines = document.querySelectorAll(`.${this.CONSTANTS.INDICATOR_LINE_CLASS}`);
let hasActive = false;
links.forEach((link, index) => {
const isActive = link.dataset.targetId === lastVisibleMessageId;
link.classList.toggle(this.CONSTANTS.ACTIVE_CLASS, isActive);
indicatorLines[index]?.classList.toggle(this.CONSTANTS.ACTIVE_CLASS, isActive);
if (isActive) hasActive = true;
});
if (!hasActive && links.length > 0) {
links[0].classList.add(this.CONSTANTS.ACTIVE_CLASS);
indicatorLines[0]?.classList.add(this.CONSTANTS.ACTIVE_CLASS);
}
this.#syncIndicatorScroll();
}
#createContainer() {
const container = document.createElement("div");
container.id = this.CONSTANTS.CONTAINER_ID;
return container;
}
#createIndicator(navItems) {
const indicator = document.createElement("div");
indicator.id = this.CONSTANTS.INDICATOR_ID;
const lineWrapper = document.createElement("div");
lineWrapper.id = "prompt-nav-indicator-wrapper";
navItems.forEach((item) => {
const line = document.createElement("div");
line.className = this.CONSTANTS.INDICATOR_LINE_CLASS;
line.dataset.targetId = item.id;
lineWrapper.appendChild(line);
});
indicator.appendChild(lineWrapper);
return indicator;
}
#createMenu(navItems) {
const menu = document.createElement("div");
menu.id = this.CONSTANTS.MENU_ID;
const list = document.createElement("ul");
navItems.forEach((item) => {
const link = document.createElement("a");
link.href = `#${item.id}`;
link.textContent = item.text;
link.dataset.targetId = item.id;
link.onclick = (e) => this.#handleLinkClick(e);
const listItem = document.createElement("li");
listItem.appendChild(link);
list.appendChild(listItem);
});
menu.appendChild(list);
return menu;
}
#handleLinkClick(event) {
event.preventDefault();
const link = event.currentTarget;
const targetId = link.dataset.targetId;
const messageElement = this.#idToElementMap.get(targetId);
if (!messageElement || !document.body.contains(messageElement)) {
console.error("Prompt Navigator: Target message element not found or detached:", targetId);
return;
}
document
.querySelectorAll(`#${this.CONSTANTS.MENU_ID} li a, .${this.CONSTANTS.INDICATOR_LINE_CLASS}`)
.forEach((el) => el.classList.remove(this.CONSTANTS.ACTIVE_CLASS));
link.classList.add(this.CONSTANTS.ACTIVE_CLASS);
const indicatorLine = document.querySelector(`.${this.CONSTANTS.INDICATOR_LINE_CLASS}[data-target-id="${targetId}"]`);
indicatorLine?.classList.add(this.CONSTANTS.ACTIVE_CLASS);
this.#scrollToMessage(messageElement);
this.#syncIndicatorScroll();
}
#scrollToMessage(messageElement) {
const scrollParent = this.#scrollParent || this.#findScrollableParent(messageElement);
if (!this.#scrollParent) this.#scrollParent = scrollParent;
let scrollTimeout;
const scrollEndListener = () => {
clearTimeout(scrollTimeout);
scrollTimeout = setTimeout(() => {
messageElement.classList.add(this.CONSTANTS.JIGGLE_EFFECT_CLASS);
setTimeout(() => messageElement.classList.remove(this.CONSTANTS.JIGGLE_EFFECT_CLASS), this.CONSTANTS.JIGGLE_ANIMATION_DURATION);
scrollParent.removeEventListener("scroll", scrollEndListener);
}, this.CONSTANTS.SCROLL_END_TIMEOUT);
};
scrollParent.addEventListener("scroll", scrollEndListener);
const parentTop = scrollParent === document.documentElement ? 0 : scrollParent.getBoundingClientRect().top;
const msgTop = messageElement.getBoundingClientRect().top;
const scrollTop = scrollParent.scrollTop + msgTop - parentTop - this.CONSTANTS.SCROLL_OFFSET;
scrollParent.scrollTo({ top: scrollTop, behavior: "smooth" });
}
#updateTheme() {
const isDarkMode = document.documentElement.classList.contains("dark");
const container = document.getElementById(this.CONSTANTS.CONTAINER_ID);
if (container) {
container.dataset.theme = isDarkMode ? "dark" : "light";
}
}
#syncIndicatorScroll() {
const indicator = document.getElementById(this.CONSTANTS.INDICATOR_ID);
const lineWrapper = document.getElementById("prompt-nav-indicator-wrapper");
const activeLine = indicator?.querySelector(`.${this.CONSTANTS.INDICATOR_LINE_CLASS}.${this.CONSTANTS.ACTIVE_CLASS}`);
if (!indicator || !lineWrapper || !activeLine) {
return;
}
const indicatorHeight = indicator.clientHeight;
const wrapperHeight = lineWrapper.scrollHeight;
if (wrapperHeight <= indicatorHeight) {
lineWrapper.style.transform = `translateY(0px)`;
return;
}
const activeLineTop = activeLine.offsetTop;
const activeLineHeight = activeLine.offsetHeight;
let desiredTranslateY = -(activeLineTop - indicatorHeight / 2 + activeLineHeight / 2);
desiredTranslateY = Math.min(0, desiredTranslateY);
const maxScroll = wrapperHeight - indicatorHeight;
desiredTranslateY = Math.max(-maxScroll, desiredTranslateY);
lineWrapper.style.transform = `translateY(${desiredTranslateY}px)`;
}
#detectPlatform() {
const currentHost = window.location.host;
return PLATFORMS.find((p) => p.hosts.some((h) => currentHost.includes(h)));
}
#setupObservers() {
const observer = new MutationObserver(() => {
this.#debouncedBuildNav();
this.#updateTheme();
});
observer.observe(document.body, { childList: true, subtree: true });
const themeObserver = new MutationObserver(() => this.#updateTheme());
themeObserver.observe(document.documentElement, { attributes: true, attributeFilter: ["class"] });
}
#setupEventListeners() {
window.addEventListener("scroll", this.#throttledUpdateActiveLink, {
capture: true,
});
}
#addStyles() {
const style = document.createElement("style");
style.textContent = `
:root {
--nav-bg-color-light: #F7F7F7;
--nav-text-color-light: #333333;
--nav-text-subtle-light: #555555;
--nav-border-color-light: #E0E0E0;
--nav-hover-bg-color-light: #E9E9E9;
--nav-active-bg-color-light: #DCDCDC;
--nav-scrollbar-thumb-light: #CCCCCC;
--nav-scrollbar-thumb-hover-light: #BBBBBB;
--nav-indicator-line-light: rgba(0, 0, 0, 0.3);
--nav-indicator-active-color-light: #000000;
--nav-bg-color-dark: #2A2A2A;
--nav-text-color-dark: #EAEAEA;
--nav-text-subtle-dark: #C0C0C0;
--nav-border-color-dark: rgba(255, 255, 255, 0.1);
--nav-hover-bg-color-dark: rgba(255, 255, 255, 0.1);
--nav-active-bg-color-dark: rgba(255, 255, 255, 0.15);
--nav-scrollbar-thumb-dark: rgba(255, 255, 255, 0.2);
--nav-scrollbar-thumb-hover-dark: rgba(255, 255, 255, 0.3);
--nav-indicator-line-dark: rgba(255, 255, 255, 0.4);
--nav-indicator-active-color-dark: #D3D3D3;
}
#${this.CONSTANTS.CONTAINER_ID}[data-theme='light'] {
--nav-bg-color: var(--nav-bg-color-light);
--nav-text-color: var(--nav-text-color-light);
--nav-text-subtle: var(--nav-text-subtle-light);
--nav-border-color: var(--nav-border-color-light);
--nav-hover-bg-color: var(--nav-hover-bg-color-light);
--nav-active-bg-color: var(--nav-active-bg-color-light);
--nav-scrollbar-thumb: var(--nav-scrollbar-thumb-light);
--nav-scrollbar-thumb-hover: var(--nav-scrollbar-thumb-hover-light);
--nav-indicator-line: var(--nav-indicator-line-light);
--nav-indicator-active-color: var(--nav-indicator-active-color-light);
--nav-indicator-active-shadow: var(--nav-indicator-active-color-light);
}
#${this.CONSTANTS.CONTAINER_ID}[data-theme='dark'] {
--nav-bg-color: var(--nav-bg-color-dark);
--nav-text-color: var(--nav-text-color-dark);
--nav-text-subtle: var(--nav-text-subtle-dark);
--nav-border-color: var(--nav-border-color-dark);
--nav-hover-bg-color: var(--nav-hover-bg-color-dark);
--nav-active-bg-color: var(--nav-active-bg-color-dark);
--nav-scrollbar-thumb: var(--nav-scrollbar-thumb-dark);
--nav-scrollbar-thumb-hover: var(--nav-scrollbar-thumb-hover-dark);
--nav-indicator-line: var(--nav-indicator-line-dark);
--nav-indicator-active-color: var(--nav-indicator-active-color-dark);
--nav-indicator-active-shadow: var(--nav-indicator-active-color-dark);
}
@keyframes prompt-nav-jiggle {
0%, 100% { transform: translateX(0); }
10%, 30%, 50%, 70%, 90% { transform: translateX(-3px); }
20%, 40%, 60%, 80% { transform: translateX(3px); }
}
.${this.CONSTANTS.JIGGLE_EFFECT_CLASS} {
animation: prompt-nav-jiggle ${this.CONSTANTS.JIGGLE_ANIMATION_DURATION / 1000}s ease-in-out;
}
#${this.CONSTANTS.CONTAINER_ID} {
position: fixed;
top: 12rem;
right: 1.5rem;
z-index: 9999;
}
#${this.CONSTANTS.INDICATOR_ID} {
position: absolute;
top: 0;
right: 0;
cursor: pointer;
transition: opacity 0.25s ease-in-out;
max-height: calc(100vh - 13.25rem);
overflow: hidden;
}
#prompt-nav-indicator-wrapper {
display: flex;
flex-direction: column;
align-items: flex-end;
gap: 1rem;
transition: transform 0.2s ease-in-out;
}
.${this.CONSTANTS.INDICATOR_LINE_CLASS} {
width: 1.25rem;
height: 2px;
background-color: var(--nav-indicator-line);
border-radius: 0.125rem;
transition: all 0.25s ease-in-out;
}
.${this.CONSTANTS.INDICATOR_LINE_CLASS}.${this.CONSTANTS.ACTIVE_CLASS} {
width: 1.75rem;
background-color: var(--nav-indicator-active-color);
height: 2px;
transition: background 0.2s, box-shadow 0.2s, width 0.2s;
box-shadow: var(--nav-indicator-active-shadow) 0px 0px 3px;
border-radius: 0.125rem;
margin-left: 0px;
}
#${this.CONSTANTS.MENU_ID} {
position: absolute;
top: 0;
right: 0;
transform: translateX(1rem);
width: 17.5rem;
max-height: calc(100vh - 13.25rem);
overflow-y: auto;
background-color: var(--nav-bg-color);
border: 1px solid var(--nav-border-color);
color: var(--nav-text-color);
border-radius: 0.75rem;
box-shadow: 0 8px 24px rgba(0,0,0,0.3);
padding: 0.75rem;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
opacity: 0;
visibility: hidden;
transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
}
#${this.CONSTANTS.CONTAINER_ID}:hover #${this.CONSTANTS.INDICATOR_ID} {
opacity: 0;
}
#${this.CONSTANTS.CONTAINER_ID}:hover #${this.CONSTANTS.MENU_ID} {
opacity: 1;
visibility: visible;
transform: translateX(0);
}
#${this.CONSTANTS.MENU_ID} ul {
list-style: none;
padding: 0;
margin: 0;
display: flex;
flex-direction: column;
gap: 0.25rem;
}
#${this.CONSTANTS.MENU_ID} li a {
display: block;
padding: 0.5rem;
text-decoration: none;
color: var(--nav-text-subtle);
border-radius: 0.375rem;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
font-size: 0.875rem;
transition: background-color 0.2s ease, color 0.2s ease;
}
#${this.CONSTANTS.MENU_ID} li a:hover {
background-color: var(--nav-hover-bg-color);
color: var(--nav-text-color);
}
#${this.CONSTANTS.MENU_ID} li a.${this.CONSTANTS.ACTIVE_CLASS} {
background-color: var(--nav-active-bg-color);
color: var(--nav-text-color);
font-weight: 500;
}
#${this.CONSTANTS.MENU_ID}::-webkit-scrollbar { width: 0.5rem; }
#${this.CONSTANTS.MENU_ID}::-webkit-scrollbar-track { background: transparent; }
#${this.CONSTANTS.MENU_ID}::-webkit-scrollbar-thumb { background-color: var(--nav-scrollbar-thumb); border-radius: 0.25rem; }
#${this.CONSTANTS.MENU_ID}::-webkit-scrollbar-thumb:hover { background-color: var(--nav-scrollbar-thumb-hover); }
`;
document.head.appendChild(style);
}
#findScrollableParent(element) {
let el = element.parentElement;
while (el && el !== document.body) {
const style = window.getComputedStyle(el);
if (style.overflowY === "auto" || style.overflowY === "scroll") {
return el;
}
el = el.parentElement;
}
return document.documentElement;
}
#debounce(func, wait) {
let timeout;
return (...args) => {
clearTimeout(timeout);
timeout = setTimeout(() => func(...args), wait);
};
}
#throttle(func, limit) {
let inThrottle;
return (...args) => {
if (!inThrottle) {
func(...args);
inThrottle = true;
setTimeout(() => (inThrottle = false), limit);
}
};
}
}
new PromptNavigator().init();
})();