<template>
  <h1>JavaScript Transition Hooks</h1>
  <p>This code hooks into "after-enter" so that after the initial animation is done, a method runs that displays a red div.</p>
  <button @click="pVisible=true">Create p-tag!</button><br>
  <Transition @after-enter="onAfterEnter">
    <p v-show="pVisible" id="p1">Hello World!</p>
  </Transition>
  <br>
  <div v-show="divVisible">This appears after the "enter-active" phase of the transition.</div>
</template>

<script>
export default {
  data() {
    return {
      pVisible: false,
      divVisible: false
    }
  },
  methods: {
    onAfterEnter() {
      this.divVisible = true;
    }
  }
}
</script>

<style scoped>
  .v-enter-active {
    animation: swirlAdded 1s;
  }
  @keyframes swirlAdded {
    from {
      opacity: 0;
      rotate: 0;
      scale: 0.1;
    }
    to {
      opacity: 1;
      rotate: 360deg;
      scale: 1;
    }
  }
  #p1, div {
    display: inline-block;
    padding: 10px;
    border: dashed black 1px;
  }
  #p1 {
    background-color: lightgreen;
  }
  div {
    background-color: lightcoral;
  }
</style>               