Book More

Quick access buttons for Anna (ISBN/Title) and Libby (copies title) on Douban, NeoDb, and Goodreads

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Book More
// @namespace    https://example.com/
// @version      1.1.1
// @author       cccccc
// @description  Quick access buttons for Anna (ISBN/Title) and Libby (copies title) on Douban, NeoDb, and Goodreads
// @match        https://neodb.social/book/*
// @match        https://book.douban.com/subject/*
// @match        https://www.goodreads.com/book/*
// @grant        none
// @license MIT
// ==/UserScript==

(function () {
  'use strict';

  // --------- Helper: safely extract book JSON-LD ----------
  function extractBookData() {
    const script = document.querySelector('script[type="application/ld+json"]');
    if (!script) return { title: '', isbn: '' };

    let data;
    try {
      data = JSON.parse(script.textContent.trim());
    } catch (_) {
      return { title: '', isbn: '' };
    }

    if (Array.isArray(data)) {
      data = data.find(x => x['@type'] === 'Book') || data[0] || {};
    }


    function decodeHtml(html) {
                const txt = document.createElement("textarea");
                txt.innerHTML = html;
                return txt.value;}

    const title = decodeHtml(data.name || data.title || '');
    const isbn = (data.isbn || '').replace(/-/g, '');
    return { title, isbn };
  }

  const { title, isbn } = extractBookData();
  if (!title) return;

  // --------- Build search URLs ----------
  const links = {
    annaIsbn: isbn ? `https://annas-archive.org/search?q=${isbn}` : null,
    annaTitle: `https://annas-archive.org/search?q=${encodeURIComponent(title)}`,
    libby: 'https://libbyapp.com/search'
  };

  // --------- Helper: apply simple hover ----------
  function applyHover(btn, bg, hoverBg, color, hoverColor) {
    btn.addEventListener('mouseenter', () => {
      btn.style.backgroundColor = hoverBg;
      btn.style.color = hoverColor;
    });
    btn.addEventListener('mouseleave', () => {
      btn.style.backgroundColor = bg;
      btn.style.color = color;
    });
  }

  // --------- Site configuration ----------
  const siteConfig = {
    neodb: {
      match: /^https:\/\/neodb\.social\/book\//,
      insertTarget() {
        const anchor = document.querySelector('.right.mark');
        return { parent: anchor?.parentNode, before: anchor };
      },
      container(el) {
        el.id = 'book-more-links';
        el.style.cssText = `
          float: right;
          clear: right;
          width: 25%;
          margin: 2rem 0;
          text-align: center;
        `;
      },
      buttonClass: 'bm-btn-neodb',
      hover: (btn) =>
        applyHover(
          btn,
          'transparent',
          'var(--pico-primary-hover-background)',
          'var(--pico-primary)',
          'var(--pico-primary-inverse)'
        )
    },

    douban: {
      match: /^https:\/\/book\.douban\.com\/subject\//,
      insertTarget() {
        const aside = document.querySelector('.subjectwrap .aside') ||
                      document.querySelector('.aside');
        return { parent: aside, before: aside?.firstChild };
      },
      container(el) {
        el.className = 'gray_ad no-border';
      },
      wrapper() {
        const w = document.createElement('div');
        w.className = 'mb8 pl';
        return w;
      },
      buttonWrapper(btn) {
        const meta = document.createElement('div');
        meta.className = 'meta';
        meta.appendChild(btn);
        return meta;
      },
      buttonClass: 'bm-btn-douban'
    },

    goodreads: {
      match: /^https:\/\/www\.goodreads\.com\/book\//,
      insertTarget() {
        const h = document.querySelector('#bookTitle') ||
                  document.querySelector('h1');
        return { parent: h?.parentNode, before: h };
      },
      container(el) {
        el.id = 'book-more-links';
        el.style.cssText = `
          margin: 1rem 0;
          padding: 0.5rem 0;
          display: flex;
          flex-wrap: wrap;
          gap: 0.5rem;
        `;
      },
      buttonClass: 'bm-btn-goodreads',
      hover: (btn) => applyHover(btn, '#f5f5f1', '#ddd', '#333', '#333')
    }
  };

  // --------- Detect site ----------
  let active = null;
  for (const key in siteConfig) {
    if (siteConfig[key].match.test(location.href)) {
      active = siteConfig[key];
      break;
    }
  }
  if (!active) return;

  // --------- Insert shared CSS ----------
  const css = `
    .bm-btn-neodb {
      display: block;
      width: 75%;
      margin: 0.3rem auto;
      padding: 0.5rem 1rem;
      font-size: 0.9rem;
      text-align: center;
      border-radius: var(--pico-border-radius);
      border: 1px solid var(--pico-primary-border);
      background: transparent;
      color: var(--pico-primary);
      text-decoration: none;
      cursor: pointer;
    }
    .bm-btn-douban {
      text-decoration: none;
      cursor: pointer;
    }
    .bm-btn-goodreads {
      display: inline-block;
      margin: 0.3rem;
      padding: 0.4rem 0.8rem;
      font-size: 0.85rem;
      border-radius: 4px;
      border: 1px solid #d0d0ce;
      background: #f5f5f1;
      color: #333;
      text-decoration: none;
      cursor: pointer;
    }
  `;
  const styleTag = document.createElement('style');
  styleTag.textContent = css;
  document.head.appendChild(styleTag);

  // --------- Button creation ----------
  function makeButton(label, href) {
    const btn = document.createElement('a');
    btn.href = href;
    btn.target = '_blank';
    btn.rel = 'noopener noreferrer';
    btn.textContent = label;
    btn.className = active.buttonClass;
    if (active.hover) active.hover(btn);
    return btn;
  }

  function makeLibbyButton() {
    const btn = document.createElement('a');
    btn.href = '#';
    btn.textContent = 'Libby';
    btn.className = active.buttonClass;
    if (active.hover) active.hover(btn);

    btn.addEventListener('click', async (e) => {
      e.preventDefault();
      try {
        await navigator.clipboard.writeText(title);
      } catch (err) {
        alert('Copy to clipboard failed.');
      }
      window.open(links.libby, '_blank', 'noopener');
    });

    return btn;
  }

  // --------- Construct DOM ----------
  const container = document.createElement('div');
  active.container(container);

  const wrapper = active.wrapper ? active.wrapper() : container;

  const addBtn = (el) => {
    const node = active.buttonWrapper ? active.buttonWrapper(el) : el;
    wrapper.appendChild(node);
  };

  if (links.annaIsbn) addBtn(makeButton('Anna (ISBN)', links.annaIsbn));
  addBtn(makeButton('Anna (Title)', links.annaTitle));
  addBtn(makeLibbyButton());

  if (wrapper !== container) {
    container.appendChild(wrapper);
  }

  const { parent, before } = active.insertTarget();
  if (parent) parent.insertBefore(container, before);
})();