GitHub Enhancer (Ultra Edition)

GitHub UI enhancer w/ drag menu, fast downloads, dark mode override, and more. Author: Eliminater74 | MIT License

您需要先安装一个扩展,例如 篡改猴Greasemonkey暴力猴,之后才能安装此脚本。

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

您需要先安装一个扩展,例如 篡改猴暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴Userscripts ,之后才能安装此脚本。

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

您需要先安装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         GitHub Enhancer (Ultra Edition)
// @namespace    https://github.com/TamperMonkeyDevelopment/TamperMonkeyScripts
// @version      3.0
// @description  GitHub UI enhancer w/ drag menu, fast downloads, dark mode override, and more. Author: Eliminater74 | MIT License
// @author       Eliminater74
// @license      MIT
// @match        https://github.com/*
// @icon         https://github.githubassets.com/favicons/favicon.svg
// @homepage     https://github.com/TamperMonkeyDevelopment/TamperMonkeyScripts
// @supportURL   https://github.com/TamperMonkeyDevelopment/TamperMonkeyScripts/issues
// @grant        none
// ==/UserScript==

(function () {
  'use strict';

  const defaultSettings = {
    highlightStalePRs: true,
    autoExpandDiffs: true,
    addFileSizeLabels: true,
    autoFocusSearch: true,
    showFastDownload: true,
    showFloatingMenu: true,
    themeMode: 'auto',
    pinnedRepos: []
  };

  const settingsKey = 'githubEnhancerSettings';
  const settings = JSON.parse(localStorage.getItem(settingsKey)) || defaultSettings;
  const saveSettings = () => localStorage.setItem(settingsKey, JSON.stringify(settings));
  const getCurrentRepo = () => location.pathname.split('/').slice(1, 3).join('/');

  const debounce = (fn, delay = 300) => {
    let timeout;
    return (...args) => {
      clearTimeout(timeout);
      timeout = setTimeout(() => fn.apply(this, args), delay);
    };
  };

  const highlightStalePRs = () => {
    document.querySelectorAll('relative-time').forEach(el => {
      const daysOld = (Date.now() - new Date(el.dateTime)) / (1000 * 60 * 60 * 24);
      if (daysOld > 7) {
        el.style.color = 'red';
        el.style.fontWeight = 'bold';
      }
    });
  };

  const expandDiffs = () => {
    document.querySelectorAll('button').forEach(btn => {
      const txt = btn.innerText.toLowerCase();
      if (txt.includes('load diff') || txt.includes('show')) btn.click();
    });
  };

  const collapseDiffs = () => {
    document.querySelectorAll('button[aria-label="Collapse file"]').forEach(btn => btn.click());
  };

  const showFileSizes = () => {
    document.querySelectorAll('a.js-navigation-open').forEach(el => {
      const row = el.closest('tr');
      const sizeEl = row?.querySelector('td:last-child');
      if (sizeEl && sizeEl.innerText.match(/[0-9.]+ (KB|MB)/) && !el.querySelector('.gh-size')) {
        const tag = document.createElement('span');
        tag.className = 'gh-size';
        tag.style.marginLeft = '6px';
        tag.style.fontSize = 'smaller';
        tag.style.color = '#888';
        tag.textContent = `(${sizeEl.innerText.trim()})`;
        el.appendChild(tag);
      }
    });
  };

  const autoFocusSearch = () => {
    const input = document.querySelector('input.header-search-input');
    if (input) input.focus();
  };

  const addFastDownloadButtons = () => {
    document.querySelectorAll('a.js-navigation-open').forEach(el => {
      const href = el.getAttribute('href');
      if (href?.includes('/blob/') && !el.parentNode.querySelector('.gh-download-link')) {
        const rawURL = 'https://raw.githubusercontent.com' + href.replace('/blob', '');
        const dl = document.createElement('a');
        dl.href = rawURL;
        dl.textContent = ' ⬇';
        dl.download = '';
        dl.className = 'gh-download-link';
        dl.style.marginLeft = '5px';
        el.parentNode.appendChild(dl);
      }
    });
  };

  const applyDarkMode = () => {
    const theme = settings.themeMode;
    if (theme === 'auto') return;
    document.documentElement.setAttribute('data-color-mode', theme);
    document.documentElement.setAttribute('data-dark-theme', 'dark');
    document.documentElement.setAttribute('data-light-theme', 'light');
  };

  const pinCurrentRepo = () => {
    const repo = getCurrentRepo();
    if (repo && !settings.pinnedRepos.includes(repo)) {
      settings.pinnedRepos.push(repo);
      saveSettings();
      updatePinnedList();
    }
  };

  const updatePinnedList = () => {
    const list = document.getElementById('gh-pinned-list');
    if (!list) return;
    list.innerHTML = '';
    settings.pinnedRepos.forEach(repo => {
      const li = document.createElement('li');
      const a = document.createElement('a');
      a.href = `https://github.com/${repo}`;
      a.textContent = repo;
      a.target = '_blank';
      const del = document.createElement('button');
      del.textContent = '❌';
      del.style.marginLeft = '6px';
      del.onclick = () => {
        settings.pinnedRepos = settings.pinnedRepos.filter(r => r !== repo);
        saveSettings();
        updatePinnedList();
      };
      li.appendChild(a);
      li.appendChild(del);
      list.appendChild(li);
    });
  };

  const createFloatingMenu = () => {
    const gear = document.createElement('div');
    gear.innerHTML = '⚙️';
    Object.assign(gear.style, {
      position: 'fixed', bottom: '20px', right: '20px',
      fontSize: '22px', zIndex: '9999', cursor: 'pointer', userSelect: 'none'
    });

    const panel = document.createElement('div');
    panel.id = 'gh-enhancer-panel';
    panel.style.cssText = `
      position: fixed; bottom: 60px; right: 20px;
      z-index: 9999; background: #222; color: #fff;
      padding: 12px; border-radius: 10px; font-size: 14px;
      display: none; box-shadow: 0 0 12px rgba(0,0,0,0.6);
      transition: all 0.3s ease;
    `;

    const checkbox = (label, key) => {
      const row = document.createElement('div');
      row.innerHTML = `<label><input type="checkbox" ${settings[key] ? 'checked' : ''}/> ${label}</label>`;
      row.querySelector('input').addEventListener('change', e => {
        settings[key] = e.target.checked;
        saveSettings();
      });
      return row;
    };

    panel.appendChild(checkbox('Highlight stale PRs', 'highlightStalePRs'));
    panel.appendChild(checkbox('Auto-expand diffs', 'autoExpandDiffs'));
    panel.appendChild(checkbox('Show file sizes', 'addFileSizeLabels'));
    panel.appendChild(checkbox('Auto-focus search', 'autoFocusSearch'));
    panel.appendChild(checkbox('Fast downloads', 'showFastDownload'));

    const themeSelect = document.createElement('select');
    ['auto', 'dark', 'light'].forEach(t => {
      const opt = document.createElement('option');
      opt.value = t;
      opt.textContent = t.charAt(0).toUpperCase() + t.slice(1);
      themeSelect.appendChild(opt);
    });
    themeSelect.value = settings.themeMode;
    themeSelect.onchange = () => {
      settings.themeMode = themeSelect.value;
      saveSettings();
      applyDarkMode();
    };

    panel.appendChild(document.createElement('hr'));
    panel.appendChild(document.createTextNode('Theme:'));
    panel.appendChild(themeSelect);
    panel.appendChild(document.createElement('hr'));

    const pinBtn = document.createElement('button');
    pinBtn.textContent = '📌 Pin This Repo';
    pinBtn.onclick = pinCurrentRepo;
    panel.appendChild(pinBtn);

    const pinnedList = document.createElement('ul');
    pinnedList.id = 'gh-pinned-list';
    panel.appendChild(pinnedList);

    document.body.appendChild(gear);
    document.body.appendChild(panel);

    gear.onclick = () => panel.style.display = (panel.style.display === 'none') ? 'block' : 'none';
    updatePinnedList();
  };

  const runEnhancements = () => {
    applyDarkMode();
    if (settings.highlightStalePRs) highlightStalePRs();
    if (settings.autoExpandDiffs) expandDiffs();
    if (settings.addFileSizeLabels) showFileSizes();
    if (settings.autoFocusSearch) autoFocusSearch();
    if (settings.showFastDownload) addFastDownloadButtons();
  };

  const observer = new MutationObserver(debounce(runEnhancements));
  observer.observe(document.body, { childList: true, subtree: true });

  runEnhancements();
  if (settings.showFloatingMenu) createFloatingMenu();

  document.addEventListener('keydown', e => {
    if (e.altKey && e.key === 'g') document.getElementById('gh-enhancer-panel')?.click();
    if (e.altKey && e.key === 'e') expandDiffs();
    if (e.altKey && e.key === 'c') collapseDiffs();
  });
})();