RuoYi-Vue-Plus/src/components/ImagePreview/index.vue

<template>
  <el-image
    :src="`${realSrc}`"
    fit="cover"
    :style="`width:${realWidth};height:${realHeight};`"
    :preview-src-list="realSrcList"
    preview-teleported
  >
    <template #error>
      <div class="image-slot">
        <el-icon><picture-filled /></el-icon>
      </div>
    </template>
  </el-image>
</template>

<script setup lang="ts">
import { propTypes } from '@/utils/propTypes';

const props = defineProps({
  src: propTypes.string.def(''),
  width: {
    type: [Number, String],
    default: ''
  },
  height: {
    type: [Number, String],
    default: ''
  }
});

const realSrc = computed(() => {
  if (!props.src) {
    return;
  }
  const real_src = props.src.split(',')[0];
  return real_src;
});

const realSrcList = computed(() => {
  if (!props.src) {
    return [];
  }
  const real_src_list = props.src.split(',');
  const srcList: string[] = [];
  real_src_list.forEach((item: string) => {
    if (item.trim() === '') {
      return;
    }
    return srcList.push(item);
  });
  return srcList;
});

const realWidth = computed(() => (typeof props.width == 'string' ? props.width : `${props.width}px`));

const realHeight = computed(() => (typeof props.height == 'string' ? props.height : `${props.height}px`));
</script>

<style lang="scss" scoped>
.el-image {
  border-radius: 5px;
  background-color: var(--app-elevated-soft-bg);
  box-shadow: var(--app-shadow-sm);

  :deep(.el-image__inner) {
    transition: all 0.3s;
    cursor: pointer;

    &:hover {
      transform: scale(1.2);
    }
  }

  :deep(.image-slot) {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    color: #909399;
    font-size: 30px;
  }
}
</style>