<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Vue中的动画封装</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="root">
<fade :show="show">
<div>
hello world
</div>
</fade>
<fade :show="show">
<h1>
hello world
</h1>
</fade>
<button @click="handleBtnClick">toggle</button>
</div>
<script>
Vue.component('fade', {
props: ['show'],
template: "<transition @before-enter='handleBeforeEnter' @enter='handleEnter'><slot v-if='show'></slot></transition>",
methods: {
handleBeforeEnter: function (el) {
el.style.color = 'red';
},
handleEnter:function (el,done) {
setTimeout(()=>{
el.style.color = 'green';
done()
},2000)
}
}
});
var vm = new Vue({
el: '#root',
data: {
show: false
},
methods: {
handleBtnClick: function () {
this.show = !this.show
}
}
})
</script>
</body>
</html>
