Gemini Download Conversation

Download a conversation from Gemini to a markdown file.

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         Gemini Download Conversation
// @namespace    https://github.com/DavidLJz/userscripts
// @version      0.1.2
// @time         2025-06-08 19:00:00
// @description  Download a conversation from Gemini to a markdown file.
// @author       DavidLJz
// @license      MIT
// @match        https://gemini.google.com/app/*
// @match        https://gemini.google.com/app
// @run-at       document-end
// @icon         https://www.google.com/s2/favicons?sz=64&domain=tampermonkey.net
// @grant        none
// ==/UserScript==

(async function () {
    'use strict';

    const logger = (msg, level = 'log') => {
        console[level](`[Gemini Download Conversation] ${msg}`);
    }

    logger('Script started'); // Add this line to verify script execution

    const getCopyButton = () => {
        const icon = document.querySelector('.mat-menu-above mat-icon[data-mat-icon-name="content_copy"]')

        if (!icon) {
            throw new Error('Copy button not found.');
        }

        const btn = icon.closest('button');

        if (!btn) {
            throw new Error('Button not found.');
        }

        return btn;
    }

    const getConversationIdFromUrl = () => {
        const url = window.location.href;

        // https://gemini.google.com/app/xxxx
        const urlParts = url.split('/');

        if (urlParts.length < 5) {
            throw new Error('Invalid URL.');
        }

        return urlParts[4];
    }

    const downloadMarkdownFile = (filename, text) => {
        const blob = new Blob([text], { type: 'text/markdown' });

        const url = URL.createObjectURL(blob);

        const a = document.createElement('a');

        a.href = url;

        a.download = filename;

        a.click();

        logger('Conversation saved.');

        URL.revokeObjectURL(url);

        a.remove();
    }

    const getUserQuery = (modelResponse) => {
        const conversationContainer = modelResponse.closest('.conversation-container');

        if (!conversationContainer) {
            logger('Conversation container not found.', 'error');
            return '';
        }

        const userQuery = conversationContainer.querySelector('user-query');

        if (!userQuery) {
            logger('User query not found.', 'error');
            return '';
        }

        const text = userQuery.textContent.trim().replace(/\n{2,}/g, '\n\n')

        if (!text) {
            logger('User query text not found.', 'error');
            return '';
        }

        return `**User:** ${text}\n\n`;
    }

    const saveConversation = async (chatWindow) => {
        if (!chatWindow) {
            logger('Chat window not found. Exiting.', 'error');
            return;
        }

        logger('Saving conversation...');

        const modelResponses = chatWindow.querySelectorAll('model-response')

        if (!modelResponses.length) {
            alert('No modelResponses found. Exiting.');

            logger('No modelResponses found. Exiting.', 'error');
            return;
        }

        const clickEvent = new MouseEvent('click', {
            view: window,
            bubbles: true,
            cancelable: true
        });

        const fullTextList = [];

        for (let index = 0; index < modelResponses.length; index++) {
            const modelResponse = modelResponses[index];

            logger(`Saving message ${index + 1} of ${modelResponses.length}...`);

            try {
                let text = getUserQuery(modelResponse);

                modelResponse.querySelector('.more-menu-button').dispatchEvent(clickEvent);

                getCopyButton().dispatchEvent(clickEvent);

                // Wait for message to be copied and then check the clipboard
                await new Promise(resolve => setTimeout(resolve, 1250));

                const clipboardText = (await navigator.clipboard.readText()).trim()

                if (!clipboardText) {
                    throw new Error('No text copied.');
                }

                text += `**Gemini**: ${clipboardText}`;

                fullTextList.push(text);

                logger(`Message ${index + 1} of ${modelResponses.length} copied: ${text.length > 50 ? text.substring(0, 50) + '...' : text}`);
            }
            catch (error) {
                // Handle NotAllowedError: Failed to execute 'readText' on 'Clipboard': Document is not focused.
                if (error.name === 'NotAllowedError') {
                    alert('Please do not switch tabs or windows while the script is running. Exiting.');

                    logger('Document is not focused. Exiting.', 'error');
                    return;
                }

                logger(`Error copying message ${index + 1} of ${modelResponses.length}.`, 'error');

                logger(error, 'error');
            }
        }

        if (!fullTextList.length) {
            logger('No messages copied. Exiting.', 'error');
            return;
        }

        const conversationId = getConversationIdFromUrl();

        const separator = '\n\n---\n\n';

        const fullText = fullTextList.join(separator);

        logger('All messages copied. Saving to file...');

        downloadMarkdownFile(`gemini-${conversationId}.md`, fullText);

        logger('Exiting.');
    }

    const getChatWindow = async () => {
        let chatWindow = null;

        while (!chatWindow) {
            logger('Waiting for chat window...');

            chatWindow = document.querySelector('chat-window infinite-scroller');

            if (chatWindow) {
                logger('Chat window found.');
                break;
            }

            await new Promise(resolve => setTimeout(resolve, 1000));
        }

        return chatWindow;
    }

    const chatWindow = await getChatWindow();

    if (!chatWindow) {
        logger('Chat window not found. Exiting.', 'error');
        return;
    }

    const floatingTriggerButton = document.createElement('button');

    floatingTriggerButton.textContent = 'Save Conversation';
    floatingTriggerButton.style.position = 'fixed';
    floatingTriggerButton.style.bottom = '10px';
    floatingTriggerButton.style.right = '10px';
    floatingTriggerButton.style.zIndex = '9999';
    floatingTriggerButton.style.padding = '10px';
    floatingTriggerButton.style.border = 'none';
    floatingTriggerButton.style.backgroundColor = 'green';
    floatingTriggerButton.style.color = 'white';
    floatingTriggerButton.style.cursor = 'pointer';

    logger('Chat window found. Waiting for user click to start saving...');

    floatingTriggerButton.addEventListener('click', () => {
        logger('User clicked. Starting to save conversation...');

        // Scroll until all messages are loaded
        const scrollInterval = setInterval(() => {
            chatWindow.scrollTop = 0;

            if (chatWindow.scrollTop === 0) {
                clearInterval(scrollInterval);
                logger('All messages loaded.');
                saveConversation(chatWindow);
            }

        }, 1000);
    });

    document.body.appendChild(floatingTriggerButton);
})();