给页面添加一个切换中/英文的按钮
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// ==UserScript==
// @name Switch language button for tour.golang.org
// @namespace https://github.com/ipcjs/
// @version 0.3
// @description 给页面添加一个切换中/英文的按钮
// @author ipcjs
// @icon https://www.google.com/s2/favicons?domain=golang.org
// @match https://tour.go-zh.org/*
// @match https://go.dev/tour/*
// @grant none
// ==/UserScript==
const hosts = [
"go.dev/tour",
"tour.go-zh.org",
]
function getNextUrl() {
const url = location.href
for (const [index, host] of hosts.entries()) {
if (url.match(host)) {
const nextHost = hosts[(index + 1) % hosts.length]
return url.replace(host, nextHost)
}
}
throw new Error('current url not match any host')
}
const $div = document.createElement('div')
$div.innerHTML = `<span class="nav" title="左键当前页面打开, 右键新页面打开">
<svg height="100%" viewBox="0 0 24 24" width="100%">
<path d="M0 0h24v24H0z" fill="none"/>
<path d="M12.87 15.07l-2.54-2.51.03-.03c1.74-1.94 2.98-4.17 3.71-6.53H17V4h-7V2H8v2H1v1.99h11.17C11.5 7.92 10.44 9.75 9 11.35 8.07 10.32 7.3 9.19 6.69 8h-2c.73 1.63 1.73 3.17 2.98 4.56l-5.09 5.02L4 19l5-5 3.11 3.11.76-2.04zM18.5 10h-2L12 22h2l1.12-3h4.75L21 22h2l-4.5-12zm-2.62 7l1.62-4.33L19.12 17h-3.24z"/>
</svg>
</span>`
$div.addEventListener('click', () => {
location.href = getNextUrl()
})
$div.addEventListener('contextmenu', () => {
window.open(getNextUrl())
})
const $topBar = document.querySelector('.top-bar')
$topBar.appendChild($div)