一、插件v-scale-screen
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二、
使用方法
javascript
<div id="app"></div>
<script type="module" src="/src/main.ts">
import { autoScale } from './autoScale.js'
autoScale('#app', {
width: 1920,
height: 1080
})
</script>
autoScale.js
javascript
function debounce(fn, delay) {
let timer
return function () {
clearTimeout(timer);
timer = setTimeout(() => {
fn.apply(this, arguments);
}, delay);
};
}
export function autoScale(selector,options) {
const el = document.querySelector(selector);
const {width,height} = options;
el.style.transformOrigin = "top left";
el.style.transition = "transform 0.5s"
function init(){
const scaleX = innerWidth / width
const scaleY = innerHeight / height
const scale = Math.min(scaleX, scaleY);
const left = (innerWidth - width * scale) / 2
const top = (innerHeight - height * scale) / 2
el.style.transform = ` translate(${left}px,${top}px) scale(${scale})`
}
init()
addEventListener("resize", debounce(init,200))
}