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vue3+element-plus暗黑模式切换动画圆弧过渡

效果

html

 <div class="toggle" ref="switchRef" @click.stop="toggleDark()"><el-icon v-show="!isDark" :size="30"><Moon /></el-icon><el-icon v-show="isDark" :size="30"><Sunny /></el-icon></div>

ts

import { useDark } from '@vueuse/core';
const isDark = useDark();//获取切换元素的ref
const switchRef = ref<HTMLElement>();
const toggleDark = () => {// 若浏览器不支持 View Transitionsif (!document.startViewTransition) {return true;}return new Promise(resolve => {const switchEl = switchRef.value as HTMLElement;const rect = switchEl.getBoundingClientRect();const x = rect.left + rect.width / 2;const y = rect.top + rect.height / 2;const radius = Math.hypot(Math.max(x, innerWidth - x), Math.max(y, innerHeight - y));const transition = document.startViewTransition(() => {resolve(true);});transition.ready.then(() => {const clipPath = [`circle(0px at ${x}px ${y}px)`, `circle(${radius}px at ${x}px ${y}px)`];document.documentElement.animate({clipPath,},{duration: 400,easing: 'ease-in',pseudoElement: '::view-transition-new(root)',});isDark.value = !isDark.value;});});
};