GitHub Enhancer (Ultra Edition)

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

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

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

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==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();
  });
})();