B站视频播放页添加获取封面的按钮
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// ==UserScript==
// @id BilibiliVideoCover@Laster2800
// @name B站视频封面获取
// @version 1.0
// @namespace laster2800
// @author Laster2800
// @description B站视频播放页添加获取封面的按钮
// @include *://www.bilibili.com/video/*
// ==/UserScript==
(function() {
var interval = 100
var timeout = 5000
var maxCnt = timeout / interval
var cnt = 0
var tid = setInterval(() => {
var app = document.querySelector('#app')
var vueLoad = app && app.__vue__
if (++cnt > maxCnt) {
clearInterval(tid)
} else if (vueLoad) {
clearInterval(tid)
var atr = document.querySelector('#arc_toolbar_report')
if (atr) {
var coverMeta = document.querySelector('head meta[itemprop=image]')
var coverUrl = coverMeta && coverMeta.content
var cover = document.createElement('a')
var errorMsg = '获取失败，若非网络问题请提供反馈'
cover.innerText = '获取封面'
cover.onclick = () => coverUrl ? window.open(coverUrl) : alert(errorMsg)
cover.title = coverUrl || errorMsg
cover.className = 'appeal-text'
atr.appendChild(cover)
}
}
}, interval)
})();