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NGA Filter

troll must die

当前为 2019-09-03 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name      NGA Filter
  3. // @namespace https://greasyfork.org/users/263018
  4. // @version    0.6
  5. // @author     snyssss
  6. // @description troll must die
  7. // @match        *bbs.nga.cn/thread.php?fid=*
  8. // @match        *bbs.nga.cn/read.php?tid=*
  9. // @match        *ngabbs.com/thread.php?fid=*
  10. // @match        *ngabbs.com/read.php?tid=*
  11. // @grant       GM_registerMenuCommand
  12. // @noframes
  13. // ==/UserScript==
  14.  
  15. (function () {
  16.   'use strict';
  17.  
  18.   const dataKey = 'troll_data';
  19.   const modeKey = 'troll_mode';
  20.   const keywordKey = 'troll_keyword';
  21.  
  22.   let trollMap = (function () {
  23.     try {
  24.       return JSON.parse(localStorage.getItem(dataKey)) || {};
  25.     } catch (e) {
  26.       localStorage.setItem(dataKey, '{}');
  27.     }
  28.     return {};
  29.   })();
  30.  
  31.   let filterMode = ~~localStorage.getItem(modeKey);
  32.  
  33.   let filterKeyword = localStorage.getItem(keywordKey) || '';
  34.  
  35.   const isTroll = function (uid) {
  36.     uid = ~~uid;
  37.     if (uid) {
  38.       return trollMap[uid];
  39.     }
  40.     return false;
  41.   };
  42.  
  43.   const isMatch = function (text) {
  44.     if (!!filterKeyword &&
  45.       text.search(filterKeyword) >= 0) {
  46.       return true;
  47.     }
  48.     return false;
  49.   };
  50.  
  51.   const toggleTroll = function (uid, tag) {
  52.     uid = ~~uid;
  53.     if (uid) {
  54.       if (trollMap[uid] &&
  55.         tag === null) {
  56.         delete trollMap[uid];
  57.       } else {
  58.         trollMap[uid] = tag ? [tag] : [];
  59.       }
  60.       localStorage.setItem(dataKey, JSON.stringify(trollMap));
  61.     }
  62.   };
  63.  
  64.   const getUID = function (e) {
  65.     let ele = e.getElementsByClassName('author')[0];
  66.     if (ele) {
  67.       return ele.search.match(/uid=(\S*)/)[1];
  68.     }
  69.   };
  70.  
  71.   const getLink = function (e) {
  72.     let ele = e.getElementsByClassName('topic')[0];
  73.     ele.hide = function () {
  74.       if (filterMode) {
  75.         e.remove();
  76.       } else {
  77.         ele.style.textDecoration = 'line-through';
  78.       }
  79.     }
  80.     return ele;
  81.   };
  82.  
  83.   const getToggleButton = function (e) {
  84.     let ele = e.getElementsByClassName('author')[0].nextElementSibling;
  85.     if (ele.nextElementSibling) {
  86.       ele = ele.nextElementSibling;
  87.     }
  88.     let uid = ~~ele.text;
  89.     if (uid) {
  90.       if (isTroll(uid)) {
  91.         ele.style.background = '#CB4042';
  92.       } else {
  93.         ele.style.background = '#AAA';
  94.       }
  95.       return ele;
  96.     }
  97.     else {
  98.       ele.onclick = null;
  99.     }
  100.   };
  101.  
  102.   const getAvatar = function (e) {
  103.     let ele = e.getElementsByClassName('avatar')[0] || { style: { display: '' } };
  104.     ele.show = ele.show || function () {
  105.       ele.style.display = '';
  106.     }
  107.     ele.hide = ele.hide || function () {
  108.       ele.style.display = 'none';
  109.     }
  110.     return ele;
  111.   };
  112.  
  113.   const getContent = function (e) {
  114.     let uid = getUID(e);
  115.     let name = '$troll_' + uid;
  116.     let ele = e.getElementsByClassName('postcontent')[0] || { innerHTML: '' };
  117.     ele.content = ele.content || ele.innerHTML;
  118.     ele.show = ele.show || function () {
  119.       if (filterMode) {
  120.         e.style.display = '';
  121.       } else {
  122.         ele.innerHTML = ele.content;
  123.       }
  124.     }
  125.     ele.hide = ele.hide || function () {
  126.       if (filterMode) {
  127.         e.style.display = 'none';
  128.       } else {
  129.         ele.innerHTML =
  130.           '<div class="lessernuke" style="background: #81C7D4; border-color: #66BAB7;">' +
  131.           '<span class="crimson">Troll must die.</span> ' +
  132.           '<a href="javascript:void(0)" onclick="var x = document.getElementsByName(&quot;' + name + '&quot;);for(var i=0;i<x.length;i++){x[i].style.display=&quot;&quot;}">点击查看</a>' +
  133.           '<div style="display:none" name="' + name + '">' + ele.content + '</div>' +
  134.           '</div>';
  135.       }
  136.     }
  137.     return ele;
  138.   };
  139.  
  140.   const getTag = function (e) {
  141.     let container = e.getElementsByClassName('posterinfo')[0];
  142.     let ele = container.children[1];
  143.     if (ele.tagName === 'IMG') {
  144.       ele = container.children[2];
  145.     }
  146.     if (ele.className !== 'crimson') {
  147.       let t = document.createElement('div');
  148.       t.className = 'crimson';
  149.       t.style = 'display: none;';
  150.       if (ele.getAttribute('name') === 'honor') {
  151.         t.honor = ele;
  152.       }
  153.       ele.before(t);
  154.       ele = t;
  155.     }
  156.     let uid = getUID(e);
  157.     if (isTroll(uid)) {
  158.       if (typeof (trollMap[uid]) === 'object' &&
  159.         trollMap[uid].length) {
  160.         ele.innerHTML = trollMap[uid][0];
  161.       } else {
  162.         ele.innerHTML = '';
  163.       }
  164.     }
  165.     ele.show = ele.show || function () {
  166.       if (ele.innerHTML) {
  167.         ele.style.display = '';
  168.       }
  169.       if (ele.honor) {
  170.         ele.honor.style.display = 'none';
  171.       }
  172.     }
  173.     ele.hide = ele.hide || function () {
  174.       ele.style.display = 'none';
  175.       if (ele.honor) {
  176.         ele.honor.style.display = '';
  177.       }
  178.     }
  179.     return ele;
  180.   };
  181.  
  182.   const observerElements = [
  183.     (function () {
  184.       let container = document.getElementById('topicrows');
  185.       let func = function (e) {
  186.         if (e.tagName == 'SCRIPT') return;
  187.         let uid = getUID(e);
  188.         let link = getLink(e);
  189.         if (isTroll(uid) ||
  190.           isMatch(link.innerHTML)) {
  191.           link.hide();
  192.         }
  193.       }
  194.       return [
  195.         container,
  196.         func
  197.       ]
  198.     })(),
  199.     (function () {
  200.       let container = document.getElementById('m_posts_c');
  201.       let func = function (e) {
  202.         if (e.tagName == 'SCRIPT') return;
  203.         let uid = getUID(e);
  204.         let toggle = getToggleButton(e);
  205.         if (toggle) {
  206.           toggle.onclick = function (e) {
  207.             let tag = null;
  208.             if (e.ctrlKey) {
  209.               tag = window.prompt('标签', (trollMap[uid] || {})[0]);
  210.               if (tag === null) {
  211.                 return;
  212.               }
  213.             }
  214.             toggleTroll(uid, tag);
  215.             container.refilter();
  216.           };
  217.         } else {
  218.           return;
  219.         }
  220.         let avatar = getAvatar(e);
  221.         let content = getContent(e);
  222.         let tag = getTag(e);
  223.         if (isTroll(uid)) {
  224.           avatar.hide();
  225.           content.hide();
  226.           tag.show();
  227.         }
  228.         else {
  229.           avatar.show();
  230.           content.show();
  231.           tag.hide();
  232.         }
  233.       }
  234.       return [
  235.         container,
  236.         func
  237.       ]
  238.     })()
  239.   ];
  240.  
  241.   [].slice.call(observerElements).forEach(function (e) {
  242.     if (!e[0]) return;
  243.  
  244.     e[0].refilter = function () {
  245.       [].slice.call(e[0].children).forEach(function (c) {
  246.         e[1](c);
  247.       });
  248.     }
  249.  
  250.     e[0].refilter();
  251.  
  252.     let observer = new MutationObserver(function (mutations) {
  253.       mutations.forEach(function (mutation) {
  254.         if (mutation.addedNodes.length) {
  255.           e[1](mutation.addedNodes[0]);
  256.         }
  257.       });
  258.     });
  259.  
  260.     observer.observe(e[0], {
  261.       childList: true
  262.     });
  263.   });
  264.  
  265.   if (filterMode) {
  266.     GM_registerMenuCommand('过滤模式：删除', () => {
  267.       localStorage.setItem(modeKey, 0);
  268.       location.reload();
  269.     });
  270.   } else {
  271.     GM_registerMenuCommand('过滤模式：标记', () => {
  272.       localStorage.setItem(modeKey, 1);
  273.       location.reload();
  274.     });
  275.   }
  276.  
  277.   GM_registerMenuCommand('修改过滤关键词', () => {
  278.     let result = window.prompt('过滤关键词，用\"|\"隔开', filterKeyword);
  279.     if (result === null ||
  280.       result === filterKeyword) {
  281.       return;
  282.     }
  283.     localStorage.setItem(keywordKey, result);
  284.     location.reload();
  285.   });
  286. })();