User:喵/refresh.js

注意：保存之后，你必须清除浏览器缓存才能看到做出的更改。Google Chrome、Firefox、Microsoft Edge及Safari：按住⇧ Shift键并单击工具栏的“刷新”按钮。参阅Help:绕过浏览器缓存以获取更多帮助。
/*
    Wikipedia Auto Refresh
    Copyright (C) 2012 Shyc2001 <http://zh.wikipedia.org/wiki/User:Shyc2001>
    
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
    
*/

$(document).ready(function() {
  var STORAGE_MODE = 'autoRefresh_mode_';
  var STORAGE_INTERVAL = 'autoRefresh_interval_';
  var DEFAULT_INTERVAL = 120000;
  var TIMEOUT_ID_ATTR = 'autoRefresh_timeoutID';
  var DUMMY_PARAM = '_reqid=';
  var i18n = {
    'en': {
      buttonOn: 'Auto Refresh [ON]',
      buttonOff: 'Auto Refresh [OFF]',
      turnOn: 'Enable auto-refresh for this page?',
      turnOff: 'Disable auto-refresh for this page?',
      promptInterval: 'Please enter the refresh interval (in ms):',
      specialRecentChanges: 'Special:RecentChanges',
    },
    'zh-cn': {
      buttonOn: '[√]自动刷新',
      buttonOff: '[ ]自动刷新',
      turnOn: '在此页面上启用自动刷新吗？',
      turnOff: '在此页面上禁用自动刷新吗？',
      promptInterval: '请输入刷新频率（单位：毫秒）:',
      specialRecentChanges: 'Special:最近更改',
    },
    'zh-tw': {
      buttonOn: '[√]自動刷新',
      buttonOff: '[ ]自動刷新',
      turnOn: '在此頁面上啟用自動刷新嗎？',
      turnOff: '在此頁面上禁用自動刷新嗎？',
      promptInterval: '請輸入刷新頻率（單位：毫秒）:',
      specialRecentChanges: 'Special:最近更改',
    },
  };
  i18n[''] = i18n['en'];
  i18n['zh'] = i18n['zh-cn'];
  
  var langCode = $('html').attr('lang') || navigator.language.toLowerCase() || '';
  var lang = i18n[langCode];
  if (!lang) {
    langCode = langCode.substring(0, langCode.indexOf('-'));
    lang = i18n[langCode];
    if (!lang) {
      lang = i18n[''];
    }
  }
  
  var AutoRefreshMode = {
    jumpToH4: 'jumpToH4'
  };
  var autoRefreshPages = { };
  autoRefreshPages[lang.specialRecentChanges] = 'jumpToH4';
  
  var pageName = mw.config.get('wgPageName');
  if (autoRefreshPages[pageName]) {
    var storageKey = STORAGE_MODE + pageName;
    
    var doAutoRefresh = function() {
      autoRefreshButton.text(localStorage.getItem(storageKey) ? lang.buttonOn : lang.buttonOff);
      var timeoutID = $('html').attr(TIMEOUT_ID_ATTR);
      if (timeoutID) {
        window.clearTimeout(timeoutID);
      }
      var storageItem = localStorage.getItem(storageKey);
      if (storageItem) {
        switch (storageItem) {
          case AutoRefreshMode.jumpToH4:
            var subTitle = $('h4')[0];
            if (subTitle) {
              subTitle.scrollIntoView();
            }
            break;
        }
        var interval = localStorage.getItem(STORAGE_INTERVAL + pageName) || DEFAULT_INTERVAL;
        timeoutID = window.setTimeout(function() {
          var href = location.href;
          if (href.indexOf('?') >= 0) {
            var paramPos = href.indexOf('&' + DUMMY_PARAM);
            if (paramPos < 0) {
              paramPos = href.indexOf('?' + DUMMY_PARAM);
              if (paramPos < 0) {
                href = href + '&';
              }
            }
            if (paramPos >= 0) {
              href = href.substring(0, paramPos + 1);
            }
          } else {
            href = href + '?';
          }
          location.href = href + DUMMY_PARAM + new Date().getTime();
        }, interval);
        $('html').attr(TIMEOUT_ID_ATTR, timeoutID);
      }
    };
    
    var autoRefreshButton = $('<button/>');
    autoRefreshButton.click(function() {
      if (localStorage.getItem(storageKey)) {
        if (confirm(lang.turnOff)) {
          localStorage.removeItem(storageKey);
          doAutoRefresh();
        }
      } else {
        if (confirm(lang.turnOn)) {
          localStorage.setItem(storageKey, AutoRefreshMode.jumpToH4);
          var interval = prompt(lang.promptInterval, DEFAULT_INTERVAL) || DEFAULT_INTERVAL;
          localStorage.setItem(STORAGE_INTERVAL + pageName, interval);
          doAutoRefresh();
        }
      }
    });
    autoRefreshButton.appendTo('.firstHeading');
    doAutoRefresh();
  }
});