Adds a dynamic TOC with smart scrolling for long sections to the settings panel.
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// ==UserScript==
// @name AI Studio Mod - Dynamic Table of Contents + Revert Scrollbar
// @namespace https://greatest.deepsurf.us/users/137913
// @description Adds a dynamic TOC with smart scrolling for long sections to the settings panel.
// @author TigerYT
// @version 2.3.1
// @match *://aistudio.google.com/prompts/*
// @icon https://www.gstatic.com/aistudio/ai_studio_favicon_2_32x32.png
// @grant none
// ==/UserScript==
(function() {
'use strict';
// --- 1. APPLY CUSTOM STYLES ---
function applyCustomStyles() {
const head = document.head || document.getElementsByTagName('head')[0];
if (!head) {
console.error('[TOC MOD] Could not find document head to inject styles.');
return;
}
const style = document.createElement('style');
style.type = 'text/css';
style.id = 'ai-studio-mod-styles'; // Give it an ID to prevent duplicates
style.textContent = `
/* Revert scrollbar behavior by making the container's overflow visible */
ms-autoscroll-container:not(#_) {
overflow: visible;
}
/* Hide the custom scrollbar component */
ms-prompt-scrollbar {
display: none;
}
/* Common style for all jump links */
.toc-jump-link {
color: var(--google-blue-600, #1a73e8);
text-decoration: none;
font-weight: 500;
cursor: pointer;
}
.toc-jump-link:hover {
text-decoration: underline;
}
`;
if (!document.getElementById(style.id)) {
head.append(style);
}
}
// --- 2. THE CORE LOGIC TO BUILD/UPDATE THE TABLE OF CONTENTS ---
function updateTableOfContents(settingsContainer, chatBox) {
// A. Clear any previously generated TOC elements to prevent duplication.
const oldElements = settingsContainer.querySelectorAll('.toc-generated-item');
oldElements.forEach(el => el.remove());
// B. Create the static container elements for the TOC.
const dividerElement = document.createElement('mat-divider');
dividerElement.setAttribute('_ngcontent-ng-c1976526210', '');
dividerElement.setAttribute('role', 'separator');
dividerElement.setAttribute('aria-orientation', 'horizontal');
dividerElement.className = 'mat-divider mat-divider-horizontal ng-star-inserted toc-generated-item';
const headingElement = document.createElement('h3');
headingElement.setAttribute('_ngcontent-ng-c1211128260', '');
headingElement.className = 'thinking-group-title ng-tns-c1211128260-17 toc-generated-item';
headingElement.textContent = 'Table of Contents';
const tocItemsContainer = document.createElement('div');
tocItemsContainer.setAttribute('_ngcontent-ng-c19765210', '');
tocItemsContainer.className = 'advanced-settings ng-star-inserted toc-generated-item';
// C. Find all chat turns and create a link for each one.
const chatTurns = Array.from(chatBox.firstElementChild.children)
.filter((elem) => elem.tagName === 'MS-CHAT-TURN');
if (chatTurns.length > 0) {
chatTurns.forEach((elem, index) => {
let responseName = 'Unknown Turn';
const responseElem = elem?.firstElementChild?.children?.[1];
if (responseElem) {
switch (responseElem.dataset.turnRole) {
case "User":
responseName = 'User Input';
break;
case "Model":
responseName = responseElem.querySelector('.author-label') ? 'Model Thinking' : 'Model Output';
break;
}
}
// --- STRUCTURE CREATION ---
// 1. Create the main container DIV for the row
const tocItemContainer = document.createElement('div');
tocItemContainer.className = 'mat-mdc-tooltip-trigger settings-item ng-tns-c1211128260-12 toc-generated-item';
tocItemContainer.setAttribute('_ngcontent-ng-c1211128260', '');
// 2. Create the P element for the label
const labelElement = document.createElement('p');
labelElement.className = 'v3-font-body ng-tns-c1211128260-12';
labelElement.setAttribute('_ngcontent-ng-c1211128260', '');
labelElement.textContent = (index + 1) + '. ' + responseName;
// 3. Create a span to hold all action links
const actionsSpan = document.createElement('span');
// 4. Check if the element is taller than the viewport
const isTallerThanViewport = elem.offsetHeight > window.innerHeight;
if (isTallerThanViewport) {
// If it's too tall, add the special 'scroll to bottom' link
const jumpLinkDown = document.createElement('a');
jumpLinkDown.className = 'toc-jump-link';
jumpLinkDown.textContent = '↓';
jumpLinkDown.title = 'Scroll to the bottom of this turn';
// Apply special styling
jumpLinkDown.style.color = 'oklch(from var(--color-v3-text-link) l c calc(h - 30))';
jumpLinkDown.style.marginRight = '1ch';
jumpLinkDown.addEventListener('click', () => {
elem.scrollIntoView({ block: 'end', inline: 'nearest', behavior: 'smooth' });
});
actionsSpan.append(jumpLinkDown);
}
// 5. Always add the standard 'Go To' (scroll to top) link
const jumpLinkGoTo = document.createElement('a');
jumpLinkGoTo.className = 'toc-jump-link';
jumpLinkGoTo.textContent = 'Go To';
jumpLinkGoTo.title = 'Scroll to the top of this turn';
jumpLinkGoTo.addEventListener('click', () => {
elem.scrollIntoView({ block: 'start', inline: 'nearest', behavior: 'smooth' });
});
actionsSpan.append(jumpLinkGoTo);
// 6. Assemble and append the final element
tocItemContainer.append(labelElement, actionsSpan);
tocItemsContainer.append(tocItemContainer);
});
}
// D. Insert the newly created TOC elements into the settings panel.
if (chatTurns.length > 0) {
settingsContainer.insertAdjacentElement('beforeend', dividerElement);
settingsContainer.insertAdjacentElement('beforeend', headingElement);
settingsContainer.insertAdjacentElement('beforeend', tocItemsContainer);
}
}
// --- 3. OBSERVER SETUP ---
function initializeAndMonitor() {
const observer = new MutationObserver((mutations, obs) => {
const settingsContainer = document.querySelector('ms-prompt-run-settings');
const chatBox = document.querySelector('ms-autoscroll-container');
if (settingsContainer && chatBox && chatBox.firstElementChild) {
obs.disconnect();
updateTableOfContents(settingsContainer, chatBox);
let debounceTimer;
const chatObserver = new MutationObserver(() => {
clearTimeout(debounceTimer);
debounceTimer = setTimeout(() => {
updateTableOfContents(settingsContainer, chatBox);
}, 250);
});
chatObserver.observe(chatBox.firstElementChild, { childList: true });
}
});
observer.observe(document.body, {
childList: true,
subtree: true
});
}
// --- 4. SCRIPT ENTRY POINT ---
applyCustomStyles();
initializeAndMonitor();
})();