xhs-copy-dtext.user.js

// ==UserScript==
// @name         XHS - Copy DText
// @author       hdk5, TypeA2
// @version      20260921-1
// @namespace    https://gist.github.com/TypeA2/
// @updateURL    https://gist.github.com/TypeA2/727b279cee0a03b680226df0b4643e93/raw/xhs-copy-dtext.user.js
// @downloadURL  https://gist.github.com/TypeA2/727b279cee0a03b680226df0b4643e93/raw/xhs-copy-dtext.user.js
// @match        https://www.xiaohongshu.com/*
// @match        https://www.rednote.com/*
// @grant        none
// @require      https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js
// ==/UserScript==

/* globals $ */

function reprNode(node) {
    const tag = node.tagName.toLowerCase();
    const id = node.id ? `#${node.id}` : '';
    const cls = node.className.split(' ').map(c => `.${c}`).join('');
    return `${tag}${id}${cls}`;
}

function convertHtml(el) {
    const errors = [];
    const text = $(el).contents().filter(function () {
        return this.nodeType === Node.ELEMENT_NODE;
    }).map(function () {
        const $node = $(this);

        const redmojiMap = window.__INITIAL_STATE__?.redMoji?.mojiData?._rawValue?.redmojiMap || {};
        const redmojiMapInvert = Object.fromEntries(
            Object.entries(redmojiMap).map(([key, value]) => [value, key]),
        );

        if ($node.hasClass('tag')) {
            // TPT fucks up the layout a bit - can't use just .text()
            const tag = $node.contents().filter(function () {
                return this.nodeType === Node.TEXT_NODE;
            }).text();
            return `"${tag}":[https://www.xiaohongshu.com/search_result?keyword=${encodeURIComponent(tag.slice(1))}]`;
        }

        if ($node.hasClass('note-content-user')) {
            const user = $node.text().trim();
            const userId = $node.attr('data-user-id');
            return `"${user}":[https://www.xiaohongshu.com/user/profile/${userId}]`;
        }

        if ($node.hasClass('note-content-emoji')) {
            const emojiUrl = $node.attr('src');
            const emojiTag = redmojiMapInvert[emojiUrl] || '[emoji]';
            return `"${emojiTag}":[${emojiUrl}]`;
        }

        if (
            this.tagName !== 'SPAN'
            || this.id !== ''
            || this.className !== ''
            ) {
            errors.push(`Unsupported element: ${reprNode(this)}`);
            console.warn('Unsupported element:', this);
        }

        return $node.text();
    }).get().join('');

    return { text, errors };
}

function addButtons() {
    $('.note-text:not(:has(+ .ex-copy-dtext))').each(function () {
        const note = this;
        const $note = $(note);

        const $btn = $('<a>', {
            class: 'ex-copy-dtext',
            text: 'Copy DText',
            css: {
                display: 'block',
                cursor: 'pointer',
            },
        });

        $btn.on('click', (ev) => {
            ev.preventDefault();
            const { text, errors } = convertHtml(note);
            if (errors.length) {
                alert(errors.join("\n"));
            }

            navigator.clipboard.writeText(text);
            $btn.text("Copied!")
        });

        $note.after($btn);
    });
}

new MutationObserver(addButtons).observe(document.body, { childList: true, subtree: true });