troll must die
As of
// ==UserScript==
// @name NGA Filter
// @namespace https://greasyfork.org/users/263018
// @version 0.6
// @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();
});
})();