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Add Copy Button to Chat Messages on 360's bot.n.cn

Adds a "Copy" button to chat message elements to easily copy their content.

当前为 2025-01-27 提交的版本，查看 最新版本。

// ==UserScript==
// @name         Add Copy Button to Chat Messages on 360's bot.n.cn
// @namespace    http://tampermonkey.net/
// @version      0.0.1
// @description  Adds a "Copy" button to chat message elements to easily copy their content.
// @author       aspen138
// @match        *://bot.n.cn/*
// @grant        none
// @run-at       document-end
// @icon         https://p1.ssl.qhimg.com//t11098f6bcd26caa77d8aa4d2fb.png
// @license      MIT
// ==/UserScript==


(function() {
    'use strict';

    // Update these if class names change
    const MESSAGE_CONTENT_CLASS = 'UserMessage-module__container--cAvvK';
    const CHAT_MESSAGE_CONTENT_CLASS = 'ChatMessage-module__content--MYneF';
    const NEW_MESSAGE_SELECTOR = '.max-w-\\[80\\%\\].rounded-\\[16px\\].px-\\[16px\\].py-\\[10px\\].text-white.text-\\[15px\\].leading-\\[22px\\].whitespace-pre-line.break-all.overflow-x-hidden';

    function createCopyButton() {
        const button = document.createElement('button');
        button.innerText = 'Copy';
        button.classList.add('copy-button');
        button.style.position = 'sticky';
        button.style.top = '10px';
        button.style.right = '10px';
        button.style.backgroundColor = '#4CAF50';
        button.style.color = '#fff';
        button.style.border = 'none';
        button.style.borderRadius = '4px';
        button.style.padding = '5px 10px';
        button.style.cursor = 'pointer';
        button.style.fontSize = '0.9em';
        button.style.zIndex = '1000';
        button.style.boxShadow = '0 2px 6px rgba(0,0,0,0.2)';
        button.style.marginLeft = 'auto';
        button.style.float = 'right';
        button.style.display = 'inline-block';

        button.addEventListener('mouseenter', () => {
            button.style.backgroundColor = '#45a049';
        });
        button.addEventListener('mouseleave', () => {
            button.style.backgroundColor = '#4CAF50';
        });

        return button;
    }

    function addCopyButton(element) {
        if (element.querySelector('.copy-button')) return;

        const isNewMessage = element.matches(NEW_MESSAGE_SELECTOR);
        const contentElement = isNewMessage ? element : element.querySelector(`.${MESSAGE_CONTENT_CLASS}`);

        if (!contentElement) return;

        element.style.position = 'relative';
        element.style.display = 'block';

        const copyButton = createCopyButton();

        copyButton.addEventListener('click', () => {
            const textToCopy = contentElement.innerText.trim().replace(/Copy(?=[^Copy]*$)/, "");
            navigator.clipboard.writeText(textToCopy).then(() => {
                copyButton.innerText = 'Copied!';
                copyButton.style.backgroundColor = '#388E3C';
                setTimeout(() => {
                    copyButton.innerText = 'Copy';
                    copyButton.style.backgroundColor = '#4CAF50';
                }, 2000);
            }).catch(err => {
                console.error('Failed to copy text: ', err);
            });
        });

        element.appendChild(copyButton);
    }

    function processExistingMessages() {
        // Process original chat messages
        document.querySelectorAll(`.${CHAT_MESSAGE_CONTENT_CLASS}`).forEach(addCopyButton);
        // Process new gradient messages
        document.querySelectorAll(NEW_MESSAGE_SELECTOR).forEach(addCopyButton);
    }

    function observeNewMessages() {
        const observer = new MutationObserver((mutations) => {
            for (const mutation of mutations) {
                if (mutation.type === 'childList') {
                    mutation.addedNodes.forEach(node => {
                        if (node.nodeType === Node.ELEMENT_NODE) {
                            // Check for both message types
                            if (node.matches(`.${CHAT_MESSAGE_CONTENT_CLASS}, ${NEW_MESSAGE_SELECTOR}`)) {
                                addCopyButton(node);
                            }
                            // Check nested elements
                            node.querySelectorAll(`.${CHAT_MESSAGE_CONTENT_CLASS}, ${NEW_MESSAGE_SELECTOR}`).forEach(addCopyButton);
                        }
                    });
                }
            }
        });

        observer.observe(document.body, { childList: true, subtree: true });
    }

    function init() {
        processExistingMessages();
        observeNewMessages();
    }

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', init);
    } else {
        init();
    }
})();