zhengzhou_university/web/src/components/welcome/index.vue

<template>
  <div class="welcome">
    <template v-show="!isVideo">
      <img class="bg" :style="{'z-index': isVideo?-1:0,opacity:isVideo?0:1}" :src="require('@/assets/images/bg.jpg')" alt="">
      <div  v-if="!isVideo" class="we_title">欢迎访问信息工程大学数字史馆</div>
      <span v-if="!isVideo" class="btn" @click="showVideo">开始预览</span>
    </template>
    <video @click="autoplay" ref="welcome" :style="{opacity:isVideo?1:0}" preload="auto" :poster="require('@/assets/images/videopost.jpg')" :src="require('@/assets/video/welcome.mp4')"></video>
    <span v-if="isVideo" class="btn jump" @click="$bus.$emit('toggleWelcome', false)">跳过</span>
  </div>
</template>

<script>
export default {
  data(){
    return {
      isVideo: false
    }
  },
  methods:{
    autoplay(){
      this.$nextTick(()=> {
        setTimeout(() => {
          this.$refs.welcome.play();
        });
      })
    },
    showVideo(){
      this.isVideo=true
      this.autoplay()
    }
  },
  mounted(){

     this.$nextTick(()=> {
        this.$refs.welcome && this.$refs.welcome.addEventListener('ended',()=>{
          this.$bus.$emit('toggleWelcome', false)
        })
      })
    
    // this.autoplay()
  }
}
</script>

<style lang="less">
.welcome{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  z-index: 999;
  transition: all ease 0.3s;
  .bg{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    
  }
  .we_title{
    background: none;
    position: absolute;
    top: 35%;
    left: 50%;
    transform: translate(-50%,-50%);
    font-size: 48px;
    color: #FCD67B;
    letter-spacing: 6px;
    font-weight: bold;
    width: 100%;
    text-align: center;
  }
  >video{
    width: 100%;
  }
  .btn{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    z-index: 9999;
    font-size: 18px;
    color: #FCD67B;
    background-color: #A01C26;
    border-radius: 44px;
    display: inline-block;
    cursor: pointer;
    letter-spacing: 2px;
    padding: 12px 60px;
  }
  .jump{
    transform: none;
    bottom: 47px;
    right: 66px;
    top: auto;
    left: auto;
  }
}
</style>