Gemini Download Conversation

Download a conversation from Gemini to a markdown file.

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Greasemonkey 油猴子Violentmonkey 暴力猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Violentmonkey 暴力猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Userscripts ,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==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);
})();