troll must die
Per
// ==UserScript==
// @name NGA Filter
// @namespace https://greasyfork.org/users/263018
// @version 0.6.2
// @author snyssss
// @description troll must die
// @match *bbs.nga.cn/thread.php?fid=*
// @match *bbs.nga.cn/read.php?tid=*
// @match *ngabbs.com/thread.php?fid=*
// @match *ngabbs.com/read.php?tid=*
// @grant GM_registerMenuCommand
// @noframes
// ==/UserScript==
(function() {
"use strict";
const dataKey = "troll_data";
const modeKey = "troll_mode";
const keywordKey = "troll_keyword";
let trollMap = (function() {
try {
return JSON.parse(localStorage.getItem(dataKey)) || {};
} catch (e) {
localStorage.setItem(dataKey, "{}");
}
return {};
})();
let filterMode = ~~localStorage.getItem(modeKey);
let filterKeyword = localStorage.getItem(keywordKey) || "";
const isTroll = function(uid) {
uid = ~~uid;
if (uid) {
return trollMap[uid];
}
return false;
};
const isMatch = function(text) {
if (!!filterKeyword && text.search(filterKeyword) >= 0) {
return true;
}
return false;
};
const toggleTroll = function(uid, tag) {
uid = ~~uid;
if (uid) {
if (trollMap[uid] && tag === null) {
delete trollMap[uid];
} else {
trollMap[uid] = tag ? [tag] : [];
}
localStorage.setItem(dataKey, JSON.stringify(trollMap));
}
};
const getUID = function(e) {
let ele = e.getElementsByClassName("author")[0];
if (ele) {
return ele.search.match(/uid=(\S*)/)[1];
}
};
const getLink = function(e) {
let ele = e.getElementsByClassName("topic")[0];
ele.hide = function() {
if (filterMode) {
e.remove();
} else {
ele.style.textDecoration = "line-through";
}
};
return ele;
};
const getToggleButton = function(e) {
let ele = e.getElementsByClassName("author")[0].nextElementSibling;
if (ele.nextElementSibling) {
ele = ele.nextElementSibling;
}
let uid = ~~ele.text;
if (uid) {
if (isTroll(uid)) {
ele.style.background = "#CB4042";
} else {
ele.style.background = "#AAA";
}
return ele;
} else {
ele.onclick = null;
}
};
const getAvatar = function(e) {
let ele = e.getElementsByClassName("avatar")[0] || {
style: { display: "" }
};
ele.show =
ele.show ||
function() {
ele.style.display = "";
};
ele.hide =
ele.hide ||
function() {
ele.style.display = "none";
};
return ele;
};
const getContent = function(e) {
let uid = getUID(e);
let name = "$troll_" + uid;
let ele = e.getElementsByClassName("postcontent")[0] || { innerHTML: "" };
ele.content = ele.content || ele.innerHTML;
ele.show =
ele.show ||
function() {
if (filterMode) {
e.style.display = "";
} else {
ele.innerHTML = ele.content;
}
};
ele.hide =
ele.hide ||
function() {
if (filterMode) {
e.style.display = "none";
} else {
ele.innerHTML =
'<div class="lessernuke" style="background: #81C7D4; border-color: #66BAB7;">' +
'<span class="crimson">Troll must die.</span> ' +
'<a href="javascript:void(0)" onclick="var x = document.getElementsByName("' +
name +
'");for(var i=0;i<x.length;i++){x[i].style.display=""}">点击查看</a>' +
'<div style="display:none" name="' +
name +
'">' +
ele.content +
"</div>" +
"</div>";
}
};
return ele;
};
const getTag = function(e) {
let container = e.getElementsByClassName("posterinfo")[0];
let ele = container.children[1];
if (ele.tagName === "IMG") {
ele = container.children[2];
}
if (ele.className !== "crimson") {
let t = document.createElement("div");
t.className = "crimson";
t.style = "display: none;";
if (ele.getAttribute("name") === "honor") {
t.honor = ele;
}
ele.before(t);
ele = t;
}
let uid = getUID(e);
if (isTroll(uid)) {
if (typeof trollMap[uid] === "object" && trollMap[uid].length) {
ele.innerHTML = trollMap[uid][0];
} else {
ele.innerHTML = "";
}
}
ele.show =
ele.show ||
function() {
if (ele.innerHTML) {
ele.style.display = "";
}
if (ele.honor) {
ele.honor.style.display = "none";
}
};
ele.hide =
ele.hide ||
function() {
ele.style.display = "none";
if (ele.honor) {
ele.honor.style.display = "";
}
};
return ele;
};
const observerElements = [
(function() {
let container = document.getElementById("topicrows");
let func = function(e) {
if (e.tagName == "SCRIPT") return;
let uid = getUID(e);
let link = getLink(e);
if (isTroll(uid) || isMatch(link.innerHTML)) {
link.hide();
}
};
return [container, func];
})(),
(function() {
let container = document.getElementById("m_posts_c");
let func = function(e) {
if (e.tagName == "SCRIPT") return;
let uid = getUID(e);
let toggle = getToggleButton(e);
if (toggle) {
toggle.onclick = function(e) {
let tag = null;
if (e.ctrlKey) {
tag = window.prompt("标签", (trollMap[uid] || {})[0]);
if (tag === null) {
return;
}
}
toggleTroll(uid, tag);
container.refilter();
};
} else {
return;
}
let avatar = getAvatar(e);
let content = getContent(e);
let tag = getTag(e);
if (isTroll(uid)) {
avatar.hide();
content.hide();
tag.show();
} else {
avatar.show();
content.show();
tag.hide();
}
};
return [container, func];
})()
];
[].slice.call(observerElements).forEach(function(e) {
if (!e[0]) return;
e[0].refilter = function() {
[].slice.call(e[0].children).forEach(function(c) {
e[1](c);
});
};
e[0].refilter();
let observer = new MutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
if (mutation.addedNodes.length) {
e[1](mutation.addedNodes[0]);
}
});
});
observer.observe(e[0], {
childList: true
});
});
if (filterMode) {
GM_registerMenuCommand("过滤模式：删除", () => {
localStorage.setItem(modeKey, 0);
location.reload();
});
} else {
GM_registerMenuCommand("过滤模式：标记", () => {
localStorage.setItem(modeKey, 1);
location.reload();
});
}
GM_registerMenuCommand("修改过滤关键词", () => {
let result = window.prompt('过滤关键词，用"|"隔开', filterKeyword);
if (result === null || result === filterKeyword) {
return;
}
localStorage.setItem(keywordKey, result);
location.reload();
});
})();