app/js/style.js

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function applyStyle() {
// 先检测页面中是否有macos-tab有则不再添加
let tabs = document.body.querySelectorAll('.macos-tab')
if (tabs.length > 0) {
return
}
let lineNumbers = document.body.querySelectorAll('[class^="language-"].line-numbers-mode')
lineNumbers.forEach((item) => {
// 插入现成的html文本
let title = item.getAttribute('data-title')
let tabStr =
"<div class='tab macos-tab' style='display: flex; background-color: #d0e9ff'>" +
" <div class='tab-buttons'>" +
" <div class='tab-button' style='background-color: #FF5F57'></div>" +
" <div class='tab-button' style='background-color: #FFBD2E'></div>" +
" <div class='tab-button' style='background-color: #27C93F'></div>" +
" </div>" +
` <div class='tab-title'>${title}</div>` +
" <div style='flex: 1'></div>" +
"</div>"
// 在代码块前插入选项卡
item.insertAdjacentHTML('beforebegin', tabStr);
})
}
applyStyle()
// 定时器每隔1s检查一次
setInterval(() => {
applyStyle()
}, 1000)