dataease/frontend/src/views/background/BackgroundItem.vue

<template>
  <div class="testcase-template">
    <div
      :class="[
        {
          ['template-img-active']:itemActive
        },
        'template-img'
      ]"
      :style="classBackground"
      @click.stop="setBoard"
    />
    <el-tooltip class="item" effect="light" :content="template.name" placement="bottom">
      <span class="demonstration">{{ template.name }}</span>
    </el-tooltip>
  </div>
</template>

<script>
import { mapState } from 'vuex'

export default {
  name: 'BackgroundItem',
  props: {
    template: {
      type: Object,
      default() {
        return {}
      }
    }
  },
  computed: {
    itemActive() {
      return this.curComponent.commonBackground.innerImage === this.template.url
    },
    classBackground() {
      if (this.template.url) {
        return {
          background: `url(${this.template.url}) no-repeat`,
          'background-size': `100% 100%`
        }
      } else {
        return {}
      }
    },
    ...mapState([
      'curComponent'
    ])
  },
  methods: {
    setBoard() {
      this.curComponent.commonBackground.innerImage = this.template.url
    }
  }
}
</script>

<style scoped>

  .testcase-template {
    display: inline-block;
    margin: 10px 30px;
    width: 150px;
  }

  .demonstration {
    display: block;
    font-size: 14px;
    color: gray;
    text-align: center;
    margin: 10px auto;
    width: 150px;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }

  .template-img {
    height: 112px;
    width: 200px;
    margin: 0 auto;
    box-shadow: 0 0 2px 0 rgba(31,31,31,0.15), 0 1px 2px 0 rgba(31,31,31,0.15);
    border: solid 2px #fff;
    box-sizing: border-box;
    border-radius: 3px;
  }

  .template-img:hover {
    border: solid 1px #4b8fdf;
    border-radius: 3px;
    color: deepskyblue;
    cursor: pointer;
  }

  .template-img > i{
    display:none;
    float: right;
    color: gray;
    margin: 2px;
  }

  .template-img > i:hover {
    color: red;
  }

  .template-img:hover > .el-icon-error {
    display: inline;
  }

  .template-img:hover > .el-icon-edit {
    display: inline;
  }

  .template-img-active {
    border: solid 1px red;
    border-radius: 3px;
    color: deepskyblue;
  }

</style>