<!--
 * @Description: 
 * @Autor: renchao
 * @LastEditTime: 2023-07-25 16:08:55
-->
<!--显示svg文件图标-->
<template>
  <div v-if="isExternal" :style="styleExternalIcon" class="svg-external-icon svg-icon" v-on="$listeners" />
  <svg v-else :class="svgClass" aria-hidden="true" v-on="$listeners">
    <use :xlink:href="iconName" />
  </svg>
</template>
<script>
  // doc: https://panjiachen.github.io/vue-element-admin-site/feature/component/svg-icon.html#usage
  import { isExternal } from '@/utils/validate'

  export default {
    name: 'SvgIcon',
    props: {
      iconClass: {
        type: String,
        required: true
      },
      className: {
        type: String,
        default: ''
      }
    },
    computed: {
      isExternal () {
        return isExternal(this.iconClass)
      },
      iconName () {
        return `#icon-${this.iconClass}`
      },
      svgClass () {
        if (this.className) {
          return 'svg-icon ' + this.className
        } else {
          return 'svg-icon'
        }
      },
      styleExternalIcon () {
        return {
          mask: `url(${this.iconClass}) no-repeat 50% 50%`,
          '-webkit-mask': `url(${this.iconClass}) no-repeat 50% 50%`
        }
      }
    }
  }
</script>

<style scoped>
  .svg-icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    fill: currentColor;
    overflow: hidden;
  }

  .svg-external-icon {
    background-color: currentColor;
    mask-size: cover !important;
    display: inline-block;
  }
</style>