<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<title>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)
}
}
})
new Vue({
el: "#root",
data: {
show: false
},
methods: {
handleBtnClick: function() {
this.show = !this.show
},
}
})
</script>
</body>
</html>