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NGA Filter

troll must die

当前为 2019-12-03 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    0.7.1
  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 && text.search(filterKeyword) >= 0) {
  45.       return true;
  46.     }
  47.     return false;
  48.   };
  49.  
  50.   const toggleTroll = function(uid, tag) {
  51.     uid = ~~uid;
  52.     if (uid) {
  53.       if (trollMap[uid] && tag === null) {
  54.         delete trollMap[uid];
  55.       } else {
  56.         trollMap[uid] = tag ? [tag] : [];
  57.       }
  58.       localStorage.setItem(dataKey, JSON.stringify(trollMap));
  59.     }
  60.   };
  61.  
  62.   const getUID = function(e) {
  63.     let ele = e.getElementsByClassName("author")[0];
  64.     if (ele) {
  65.       return ele.search.match(/uid=(\S*)/)[1];
  66.     }
  67.   };
  68.  
  69.   const getLink = function(e) {
  70.     let ele = e.getElementsByClassName("topic")[0];
  71.     ele.hide = function() {
  72.       if (filterMode) {
  73.         e.remove();
  74.       } else {
  75.         ele.style.textDecoration = "line-through";
  76.       }
  77.     };
  78.     return ele;
  79.   };
  80.  
  81.   const getToggleButton = function(e) {
  82.     let ele = e.getElementsByClassName("author")[0].nextElementSibling;
  83.     if (ele.nextElementSibling) {
  84.       ele = ele.nextElementSibling;
  85.     }
  86.     let uid = ~~ele.text;
  87.     if (uid) {
  88.       if (isTroll(uid)) {
  89.         ele.style.background = "#CB4042";
  90.       } else {
  91.         ele.style.background = "#AAA";
  92.       }
  93.       return ele;
  94.     } else {
  95.       ele.onclick = null;
  96.     }
  97.   };
  98.  
  99.   const getAvatar = function(e) {
  100.     let ele = e.getElementsByClassName("avatar")[0] || {
  101.       style: { display: "" }
  102.     };
  103.     ele.show =
  104.       ele.show ||
  105.       function() {
  106.         ele.style.display = "";
  107.       };
  108.     ele.hide =
  109.       ele.hide ||
  110.       function() {
  111.         ele.style.display = "none";
  112.       };
  113.     return ele;
  114.   };
  115.  
  116.   const getContent = function(e) {
  117.     let uid = getUID(e);
  118.     let name = "$troll_" + uid;
  119.     let ele = e.getElementsByClassName("postcontent")[0] || { innerHTML: "" };
  120.     ele.content = ele.content || ele.innerHTML;
  121.     ele.show =
  122.       ele.show ||
  123.       function() {
  124.         if (filterMode) {
  125.           e.style.display = "";
  126.         } else {
  127.           ele.innerHTML = ele.content;
  128.         }
  129.       };
  130.     ele.hide =
  131.       ele.hide ||
  132.       function() {
  133.         if (filterMode) {
  134.           e.style.display = "none";
  135.         } else {
  136.           ele.innerHTML =
  137.             '<div class="lessernuke" style="background: #81C7D4; border-color: #66BAB7;">' +
  138.             '<span class="crimson">Troll must die.</span> ' +
  139.             '<a href="javascript:void(0)" onclick="var x = document.getElementsByName(&quot;' +
  140.             name +
  141.             '&quot;);for(var i=0;i<x.length;i++){x[i].style.display=&quot;&quot;}">点击查看</a>' +
  142.             '<div style="display:none" name="' +
  143.             name +
  144.             '">' +
  145.             ele.content +
  146.             "</div>" +
  147.             "</div>";
  148.         }
  149.       };
  150.     return ele;
  151.   };
  152.  
  153.   const getTag = function(e) {
  154.     let container = e.getElementsByClassName("posterinfo")[0];
  155.     let ele = container.children[1];
  156.     if (ele.tagName === "IMG") {
  157.       ele = container.children[2];
  158.     }
  159.     if (ele.className !== "crimson") {
  160.       let t = document.createElement("div");
  161.       t.className = "crimson";
  162.       t.style = "display: none;";
  163.       if (ele.getAttribute("name") === "honor") {
  164.         t.honor = ele;
  165.       }
  166.       ele.before(t);
  167.       ele = t;
  168.     }
  169.     let uid = getUID(e);
  170.     if (isTroll(uid)) {
  171.       if (typeof trollMap[uid] === "object" && trollMap[uid].length) {
  172.         ele.innerHTML = trollMap[uid][0];
  173.       } else {
  174.         ele.innerHTML = "";
  175.       }
  176.     }
  177.     ele.show =
  178.       ele.show ||
  179.       function() {
  180.         if (ele.innerHTML) {
  181.           ele.style.display = "";
  182.         }
  183.         if (ele.honor) {
  184.           ele.honor.style.display = "none";
  185.         }
  186.       };
  187.     ele.hide =
  188.       ele.hide ||
  189.       function() {
  190.         ele.style.display = "none";
  191.         if (ele.honor) {
  192.           ele.honor.style.display = "";
  193.         }
  194.       };
  195.     return ele;
  196.   };
  197.  
  198.   const observerElements = [
  199.     (function() {
  200.       let container = document.getElementById("topicrows");
  201.       let func = function(e) {
  202.         if (e.tagName == "SCRIPT") return;
  203.         let uid = getUID(e);
  204.         let link = getLink(e);
  205.         if (isTroll(uid) || isMatch(link.innerHTML)) {
  206.           link.hide();
  207.         }
  208.       };
  209.       return [container, func];
  210.     })(),
  211.     (function() {
  212.       let container = document.getElementById("m_posts_c");
  213.       let func = function(e) {
  214.         if (e.tagName == "SCRIPT") return;
  215.         let uid = getUID(e);
  216.         let toggle = getToggleButton(e);
  217.         if (toggle) {
  218.           toggle.onclick = function(e) {
  219.             let tag = null;
  220.             if (e.ctrlKey) {
  221.               tag = window.prompt("标签", (trollMap[uid] || {})[0]);
  222.               if (tag === null) {
  223.                 return;
  224.               }
  225.             }
  226.             toggleTroll(uid, tag);
  227.             container.refilter();
  228.           };
  229.         } else {
  230.           return;
  231.         }
  232.         let avatar = getAvatar(e);
  233.         let content = getContent(e);
  234.         let tag = getTag(e);
  235.         if (isTroll(uid)) {
  236.           avatar.hide();
  237.           content.hide();
  238.           tag.show();
  239.         } else {
  240.           avatar.show();
  241.           content.show();
  242.           tag.hide();
  243.         }
  244.       };
  245.       return [container, func];
  246.     })()
  247.   ];
  248.  
  249.   [].slice.call(observerElements).forEach(function(e) {
  250.     if (!e[0]) return;
  251.  
  252.     e[0].refilter = function() {
  253.       [].slice.call(e[0].children).forEach(function(c) {
  254.         e[1](c);
  255.       });
  256.     };
  257.  
  258.     e[0].refilter();
  259.  
  260.     let observer = new MutationObserver(function(mutations) {
  261.       mutations.forEach(function(mutation) {
  262.         if (mutation.addedNodes.length) {
  263.           e[1](mutation.addedNodes[0]);
  264.         }
  265.       });
  266.     });
  267.  
  268.     observer.observe(e[0], {
  269.       childList: true
  270.     });
  271.   });
  272.  
  273.   if (filterMode) {
  274.     GM_registerMenuCommand("过滤模式：删除", () => {
  275.       localStorage.setItem(modeKey, 0);
  276.       location.reload();
  277.     });
  278.   } else {
  279.     GM_registerMenuCommand("过滤模式：标记", () => {
  280.       localStorage.setItem(modeKey, 1);
  281.       location.reload();
  282.     });
  283.   }
  284.  
  285.   GM_registerMenuCommand("修改过滤关键词", () => {
  286.     let result = window.prompt('过滤关键词，用"|"隔开', filterKeyword);
  287.     if (result === null || result === filterKeyword) {
  288.       return;
  289.     }
  290.     localStorage.setItem(keywordKey, result);
  291.     location.reload();
  292.   });
  293. })();