qq15725modern-screenshot
使用 HTML5 canvas 和 SVG 从 DOM 节点快速生成图像
Fork from html-to-image
English | 简体中文
📦 安装
npm i modern-screenshot
🦄 使用
import { domToPng } from 'modern-screenshot'
domToPng(document.querySelector('#app')).then(dataUrl => {
const link = document.createElement('a')
link.download = 'screenshot.png'
link.href = dataUrl
link.click()
})
<summary>CDN</summary>
html
<script src="https://unpkg.com/modern-screenshot"></script>
<script>
modernScreenshot.domToPng(document.querySelector('body')).then(dataUrl => {
const link = document.createElement('a')
link.download = 'screenshot.png'
link.href = dataUrl
link.click()
})
</script>
<summary>浏览器控制台</summary>
> ⚠️ 由于 CORS 部分嵌入将失败
> ⚠️ 由于 CORS 部分嵌入将失败
js
const script = document.createElement('script')
script.src = "https://unpkg.com/modern-screenshot"
document.getElementsByTagName('head')[0].appendChild(script)
script.onload = () => {
modernScreenshot
.domToImage(document.querySelector('body'), {
debug: true,
progress: (current, total) => {
console.log(`${ current }/${ total }`)
}
})
.then(img => {
const width = 600
const height = img.height * (width / img.width)
console.log('%c ', [
`padding: 0 ${ width / 2 }px;`,
`line-height: ${ height }px;`,
`background-image: url('${ img.src }');`,
`background-size: 100% 100%;`,
].join(''))
})
}
方法
method(node: Node, options?: Options)
DOM 转 dataURL
DOM 转 data
DOM 转 HTMLElement
选项
请查看 options.ts
单例上下文和 web worker
通过重用上下文和 web worker，每秒快速截图
// use vite
import workerUrl from 'modern-screenshot/worker?url'
import { createContext, destroyContext, domToPng } from 'modern-screenshot'
async function screenshotsPerSecond() {
const context = await createContext(document.querySelector('#app'), {
workerUrl,
workerNumber: 1,
})
for (let i = 0; i < 10; i++) {
domToPng(context).then(dataUrl => {
const link = document.createElement('a')
link.download = `screenshot-${ i + 1 }.png`
link.href = dataUrl
link.click()
if (i + 1 === 10) {
destroyContext(context)
}
})
await new Promise(resolve => setTimeout(resolve, 1000))
}
}
screenshotsPerSecond()
请查看 context.ts
待办事项
[ ] 无法克隆 css 计数器
content: counter(step);