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NGA Filter

troll must die

当前为 2019-09-01 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    0.4
  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. // @grant       GM_unregisterMenuCommand
  13. // @noframes
  14. // ==/UserScript==
  15.  
  16. (function () {
  17.     'use strict';
  18.  
  19.     const dataKey = 'troll_data';
  20.     const modeKey = 'troll_mode';
  21.  
  22.     const keyword = [
  23.         '魔兽', '拼多多'
  24.     ];
  25.  
  26.     let filterMode = ~~localStorage.getItem(modeKey);
  27.  
  28.     let trollMap = (function () {
  29.         try {
  30.             return JSON.parse(localStorage.getItem(dataKey)) || {};
  31.         } catch (e) {
  32.             localStorage.setItem(dataKey, '{}');
  33.         }
  34.         return {};
  35.     })();
  36.  
  37.     const isTroll = function (uid) {
  38.         uid = ~~uid;
  39.         if (uid) {
  40.             return trollMap[uid];
  41.         }
  42.         return false;
  43.     };
  44.  
  45.     const isMatch = function (text) {
  46.         for (var i in keyword) {
  47.             if (text.search(keyword[i]) >= 0) {
  48.                 return true;
  49.             }
  50.         }
  51.         return false;
  52.     };
  53.  
  54.     const toggleTroll = function (uid) {
  55.         uid = ~~uid;
  56.         if (uid) {
  57.             if (trollMap[uid]) {
  58.                 delete trollMap[uid];
  59.             } else {
  60.                 trollMap[uid] = true;
  61.             }
  62.             localStorage.setItem(dataKey, JSON.stringify(trollMap));
  63.         }
  64.     };
  65.  
  66.     const getUID = function (e) {
  67.         let ele = e.getElementsByClassName('author')[0];
  68.         if (ele) {
  69.             return ele.search.match(/uid=(\S*)/)[1];
  70.         }
  71.     };
  72.  
  73.     const getLink = function (e) {
  74.         let ele = e.getElementsByClassName('topic')[0];
  75.         ele.hide = function () {
  76.             if (filterMode) {
  77.                 e.remove();
  78.             }else{
  79.                 ele.style.textDecoration = 'line-through';
  80.             }
  81.         }
  82.         return ele;
  83.     };
  84.  
  85.     const getToggleButton = function (e) {
  86.         let ele = e.getElementsByClassName('author')[0].nextElementSibling;
  87.         if (ele.nextElementSibling) {
  88.             ele = ele.nextElementSibling;
  89.         }
  90.         let uid = ~~ele.text;
  91.         if (uid) {
  92.             if (isTroll(uid)) {
  93.                 ele.style.background = '#CB4042';
  94.             } else {
  95.                 ele.style.background = '#AAA';
  96.             }
  97.             return ele;
  98.         }
  99.         else {
  100.             ele.onclick = null;
  101.         }
  102.     };
  103.  
  104.     const getAvatar = function (e) {
  105.         let ele = e.getElementsByClassName('avatar')[0] || { style: { display: '' } };
  106.         ele.show = function () {
  107.             ele.style.display = '';
  108.         }
  109.         ele.hide = function () {
  110.             ele.style.display = 'none';
  111.         }
  112.         return ele;
  113.     };
  114.  
  115.     const getContent = function (e) {
  116.         let uid = getUID(e);
  117.         let name = '$troll_' + uid;
  118.         let ele = e.getElementsByClassName('postcontent')[0] || { innerHTML: '' };
  119.         ele.content = ele.content || ele.innerHTML;
  120.         ele.show = function () {
  121.             if (filterMode) {
  122.                 e.style.display = '';
  123.             } else {
  124.                 ele.innerHTML = ele.content;
  125.             }
  126.         }
  127.         ele.hide = function () {
  128.             if (filterMode) {
  129.                 e.style.display = 'none';
  130.             } else {
  131.                 ele.innerHTML =
  132.                     '<div class="lessernuke" style="background: #81C7D4; border-color: #66BAB7;">' +
  133.                     '<span class="crimson">Troll must die.</span> ' +
  134.                     '<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>' +
  135.                     '<div style="display:none" name="' + name + '">' + ele.content + '</div>' +
  136.                     '</div>';
  137.             }
  138.         }
  139.         return ele;
  140.     };
  141.  
  142.     const observerElements = [
  143.         (function () {
  144.             let container = document.getElementById('topicrows');
  145.             let func = function (e) {
  146.                 if (e.tagName == 'SCRIPT') return;
  147.                 let uid = getUID(e);
  148.                 let link = getLink(e);
  149.                 if (isTroll(uid) ||
  150.                     isMatch(link.innerHTML)) {
  151.                     link.hide();
  152.                 }
  153.             }
  154.             return [
  155.                 container,
  156.                 func
  157.             ]
  158.         })(),
  159.         (function () {
  160.             let container = document.getElementById('m_posts_c');
  161.             let func = function (e) {
  162.                 if (e.tagName == 'SCRIPT') return;
  163.                 let uid = getUID(e);
  164.                 let toggle = getToggleButton(e);
  165.                 if (toggle) {
  166.                     toggle.onclick = function () {
  167.                         toggleTroll(uid);
  168.                         container.refilter();
  169.                     };
  170.                 } else {
  171.                     return;
  172.                 }
  173.                 let avatar = getAvatar(e);
  174.                 let content = getContent(e);
  175.                 if (isTroll(uid)) {
  176.                     avatar.hide();
  177.                     content.hide();
  178.                 }
  179.                 else {
  180.                     avatar.show();
  181.                     content.show();
  182.                 }
  183.             }
  184.             return [
  185.                 container,
  186.                 func
  187.             ]
  188.         })()
  189.     ];
  190.  
  191.     [].slice.call(observerElements).forEach(function (e) {
  192.         if (!e[0]) return;
  193.  
  194.         e[0].refilter = function () {
  195.             [].slice.call(e[0].children).forEach(function (c) {
  196.                 e[1](c);
  197.             });
  198.         }
  199.  
  200.         e[0].refilter();
  201.  
  202.         let observer = new MutationObserver(function (mutations) {
  203.             mutations.forEach(function (mutation) {
  204.                 if (mutation.addedNodes.length) {
  205.                     e[1](mutation.addedNodes[0]);
  206.                 }
  207.             });
  208.         });
  209.  
  210.         observer.observe(e[0], {
  211.             childList: true
  212.         });
  213.     });
  214.  
  215.     if (filterMode) {
  216.         GM_registerMenuCommand('过滤模式：删除', () => {
  217.             localStorage.setItem(modeKey, 0);
  218.             location.reload();
  219.         });
  220.     } else {
  221.         GM_registerMenuCommand('过滤模式：标记', () => {
  222.             localStorage.setItem(modeKey, 1);
  223.             location.reload();
  224.         });
  225.     }
  226. })();