<template>
  <div class="back-bar border-bottom">
    <div class="arrow-icon">
      <i class="el-icon-arrow-left" @click="onBack"></i>
    </div>
    {{title}}
    <a :href="url" target="_blank" class="icon-link" v-if="url"></a>
    <slot></slot>
  </div>
</template>

<script>

export default {
  name: 'backBar',
  props: {
    'title': String,
    'url': String
  },
  methods: {
    onBack () {
      if (this.$router) {
        this.$router.go(-1)
      } else {
        this.$emit('onBack')
      }
    }
  }
}
</script>

<style lang="scss" scoped>
.back-bar{
  height: px2rem(90);
  line-height: px2rem(90);
  text-align: center;
  font-size: px2rem(34);
  color: #333333;
  position: relative;
  background: #ffffff;
  padding: 0 px2rem(70) 0 px2rem(70);
  .arrow-icon{
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    height: px2rem(90);
    line-height: px2rem(90);
    text-align: center;
    width: px2rem(70);
  }
  i{
    color: #333333;
    font-size: px2rem(42);
  }
}

.h5-wrap{
  .back-bar{
    background-color: transparent;
  }
  .icon-link{
    display: inline-block;
    width: 18px;
    height: 18px;
    margin-left: 6px;
    vertical-align: middle;
    text-align: center;
    background: url(../../assets/h5/icon-link.png) center/100% no-repeat;
    &:hover{
      text-decoration: none;
      opacity: 0.8;
    }
  }
}
</style>
