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// ==UserScript==
// @name 豆瓣小组话题快速预览-douban group topic fast preview
// @namespace https://github.com/DragonCat1
// @version 0.6.0
// @license MIT
// @description 可以在豆瓣小组列表页面快速预览帖子内容，无须再打开新窗口
// @author 铛铛铛铛铛/https://www.douban.com/people/48915223
// @copyright 1991-2018,铛铛铛铛铛-Dragoncat
// @match https://www.douban.com/group/*
// @exclude https://www.douban.com/group/*/new_topic
// @exclude https://www.douban.com/group/people/*/
// @exclude https://www.douban.com/group/people/*/joins
// @exclude https://www.douban.com/group/explore*
// @exclude https://www.douban.com/group/search*
// @grant none
// @downloadURL https://update.greasyfork.icu/scripts/369414/%E8%B1%86%E7%93%A3%E5%B0%8F%E7%BB%84%E8%AF%9D%E9%A2%98%E5%BF%AB%E9%80%9F%E9%A2%84%E8%A7%88-douban%20group%20topic%20fast%20preview.user.js
// @updateURL https://update.greasyfork.icu/scripts/369414/%E8%B1%86%E7%93%A3%E5%B0%8F%E7%BB%84%E8%AF%9D%E9%A2%98%E5%BF%AB%E9%80%9F%E9%A2%84%E8%A7%88-douban%20group%20topic%20fast%20preview.meta.js
// ==/UserScript==
;(function () {
'use strict'
const isTopicPage = location.pathname.match(/\/group\/topic/)
const style = document.createElement('style')
style.type = 'text/css'
if (!isTopicPage) {
style.innerHTML = `
::-webkit-scrollbar {
width: 10px;
height: 10px;
}
::-webkit-scrollbar-thumb {
background: #656565;
box-shadow: inset 0 0 5px rgba(0,0,0,.1);
}
::-webkit-scrollbar-thumb:hover {
background: #323232;
}
::-webkit-scrollbar-track {
background: #ededed;
box-shadow: inset 0 0 5px rgba(0,0,0,.1);
}
a:visited {
color: #666;
}
a:hover {
color: #fff;
}
#wrapper{
margin:0;
width: 100%;
box-sizing: border-box;
}
#group-info .group-desc {
width: auto;
}
table.olt tr:not(.th):hover,table.olt tr:not(.th).active{
cursor: pointer;
background: #ffe2cd;
}
.grid-16-8 .article{
padding-right: 10px;
}
#iframe-wrapper{
width: -webkit-fill-available;
margin:0 305px 0 686px;
top:0;
}
#iframe-wrapper a{
position:absolute;
top:-1.8em;
left:0;
}
#priview{
width: -webkit-fill-available;
height: -webkit-fill-available;
background: #fefefe;
border: none;
box-shadow: 0 0 2px #00000038;
}
.l-preview-l #iframe-wrapper{
margin-right:0;
}
.l-preview-l .aside{
display:none;
}
`
document.head.appendChild(style)
const grid = document.querySelector('.grid-16-8')
const article = document.querySelector('.article')
const iframe = document.createElement('iframe')
const iframeWrapper = document.createElement('div')
const trs = document.querySelectorAll('table.olt tr:not(.th)')
let timer
let prevTr
iframeWrapper.id = 'iframe-wrapper'
iframe.srcdoc =
'/*话题快速预览 © 铛铛铛铛铛*/
'
iframe.id = 'priview'
iframe.sandbox =
'allow-scripts allow-forms allow-same-origin allow-popups allow-modals'
iframeWrapper.appendChild(iframe)
const trigger = document.createElement('a')
trigger.onclick = function () {
document.documentElement.classList.toggle('l-preview-l')
}
if (innerWidth <= 1440)
document.documentElement.classList.add('l-preview-l')
trigger.innerText = '切换'
iframeWrapper.appendChild(trigger)
grid.insertBefore(iframeWrapper, document.querySelector('.extra'))
trs.forEach((tr) => {
//tr.onmouseenter = function () {
// changeClass(tr)
// if(timer) clearTimeout(timer)
// timer = setTimeout(()=>{
// loadContent(tr)
// },100)
// }
tr.onclick = function () {
changeClass(tr)
loadContent(tr)
}
})
article.tabIndex = 1
article.addEventListener('keydown', (e) => {
if ([38, 40].includes(e.keyCode)) {
e.preventDefault()
const curTr =
document.querySelector('table.olt tr:not(.th).active') ||
document.querySelector('table.olt tr:not(.th)')
let nextTr
if (e.keyCode === 38) {
nextTr = curTr.previousElementSibling || curTr
} else if (e.keyCode === 40) {
nextTr = curTr.nextElementSibling || curTr
}
changeClass(nextTr)
loadContent(nextTr)
}
})
window.addEventListener('scroll', function () {
changepos()
})
changepos()
function changeClass(tr) {
if (prevTr) prevTr.classList.remove('active')
prevTr = tr
tr.classList.add('active')
}
function loadContent(tr) {
iframe.removeAttribute('srcdoc')
iframe.src = tr.querySelector('a').href
}
function changepos() {
if (
document.documentElement.scrollTop >
document.querySelector('.article').offsetTop
) {
iframeWrapper.style.position = 'fixed'
iframeWrapper.style.height = window.innerHeight + 'px'
} else {
iframeWrapper.style.position = 'relative'
iframeWrapper.style.height = window.innerHeight - 195 + 'px'
}
}
} else {
style.innerHTML = `
::-webkit-scrollbar {
width: 10px;
height: 10px;
}
::-webkit-scrollbar-thumb {
background: #656565;
box-shadow: inset 0 0 5px rgba(0,0,0,.1);
}
::-webkit-scrollbar-thumb:hover {
background: #323232;
}
::-webkit-scrollbar-track {
background: #ededed;
box-shadow: inset 0 0 5px rgba(0,0,0,.1);
}
`
document.head.appendChild(style)
}
})()