Inline Prompt Scratchpad for ChatGPT

prompt_scratchpad.js

// Paste the following into Tampermonkey, as an Arc Boost, etc.
// See https://twitter.com/samarthrawal/status/1648867725316435973

// ==UserScript==
// @name         Prompt Scratchpad for ChatGPT
// @version      0.1
// @description  Collapsible prompt scratchpad for ChatGPT interface
// @namespace    com.samrawal.promptscratchpad
// @author       Sam Rawal and ChatGPT :) 
// @match        https://chat.openai.com/
// @icon         https://www.google.com/s2/favicons?sz=64&domain=openai.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const style = `
        #injected-iframe {
            position: fixed;
            top: 0;
            right: -30%;
            width: 30%;
            height: 100%;
            border: 2px solid black;
            z-index: 1000;
        }
        #iframe-toggle {
            position: fixed;
            top: 50%;
            left: calc(100% - 25px);
            transform: translateY(-50%);
            width: 50px;
            height: 50px;
            background-color: #0076ff;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 25px;
            color: white;
            cursor: pointer;
            z-index: 1001;
        }
        body {
            transition: margin-right 0.5s ease;
        }
        body.with-iframe {
            margin-right: 40%;
        }
    `;

    function addStyle(css) {
        const head = document.getElementsByTagName('head')[0];
        if (!head) { return; }
        const style = document.createElement('style');
        style.type = 'text/css';
        style.innerHTML = css;
        head.appendChild(style);
    }

    function createIFrame() {
        const iFrame = document.createElement('iframe');
        iFrame.src = 'https://labs.cactiml.com/promptscratchpad';
        iFrame.id = 'injected-iframe';
        return iFrame;
    }

    function createToggleButton() {
        const button = document.createElement('div');
        button.id = 'iframe-toggle';
        button.innerHTML = '←';
        return button;
    }

    function toggleIFrame() {
        const iFrame = document.getElementById('injected-iframe');
        const toggleButton = document.getElementById('iframe-toggle');
        const body = document.body;
        if (iFrame.style.right === '-40%') {
            iFrame.style.right = '0';
            toggleButton.innerHTML = '→';
            body.classList.add('with-iframe');
        } else {
            iFrame.style.right = '-40%';
            toggleButton.innerHTML = '←';
            body.classList.remove('with-iframe');
        }
    }

    addStyle(style);

    const iFrame = createIFrame();
    const toggleButton = createToggleButton();
    toggleButton.addEventListener('click', toggleIFrame);

    document.body.appendChild(iFrame);
    document.body.appendChild(toggleButton);
})();