图片和PDF展示预览、并支持下载

需求

展示图片和PDF类型，并且点击图片或者PDF可以预览

第一步：遍历所有的图片和PDF列表

第二步：编写downloadcard组件

  
    
    
    
    
      
      {{ fileInfo.name }}
    
    
      
    
  





.download-card{
  padding: 12px;
  border-radius: 12px;
  border: 1px dashed rgba(234, 234, 234, 1);
  box-sizing: border-box;
  background: rgba(255, 255, 255, 1);
  display: flex;
  align-items: center;
  width: 235px;
  justify-content: space-between;
  color: rgba(114, 120, 128, 1);
  .file-name{
    width: 136px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    position: relative;
  }
  .file-name-other{
    width: 160px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    position: relative;
    margin-left: 5px;
  }
  .type-img{
    display: flex;
  }
  .type-pdf{
    display: flex;
  }
  .iconrefresh, .iconimport{
    width: 24px !important;
    height: 24px !important;
  }
  .other-type{
    display: flex;
    align-items: center;
    cursor: default;
  }
}

 第三步：编写FilePreview实现图片和PDF预览组件

  
    
    
      
      {{ name }}
    
    
      
        
      
      {{ name }}
      
        
      
    
    
    
      
      
        
      
    
    
    
      
        
      
    
  





  .preview-wrap {
    display: inline-block;
    width: 224px;
    // background: red;
    height: 30px;
    margin-right: 5px;
  }
  .preview-button {
    padding: 0;
  }
  #pdf-container {
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.6);
  }
  .pdf-close {
    position: fixed;
    z-index: 10001;
    right: 0;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    font-size: 40px;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.4);
    cursor: pointer;
  }
  .file-name{
    width: 136px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    position: relative;
    margin-left: 5px;
  }
  .file-name-pdf{
    width: 156px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    position: relative;
    margin-left: 5px;
  }
  .hover-pick{
    position: absolute;
    top: 0;
    background: #000;
    margin-top: -6px;
    border-radius: 8px;
    width: 42px;
    height: 42px;
    border: none;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    opacity: 0.5;
    visibility: hidden;
  }
  .type-img{
    display: flex;
    height: 30px;
    align-items: center;
    position: relative;
    .type-img-preview{
      height: 40px;
      width:40px;
      object-fit: cover;
      margin-right: 5px;
      margin-top: 3px;
      border-radius: 8px;
      border: 1px solid #EAEAEA;
    }
    .type-img-innner{
      height: 15px;
      width:15px;
      z-index: 2;
    }
    &:hover{
      .hover-pick{
        visibility:visible;
      }
    }
  }
  .type-pdf{
    display: flex;
    height: 30px;
    align-items: center;
  }
  .iconrefresh{
    width: 24px !important;
    height: 24px !important;
  }