ofd文件预览

文件列表

<template>
  <div>
    <div class='file' v-if='$myUtils.coll.isNotEmpty(filesList)'>
      <div class='file-view'>
        <div class='file-view-item' :style='{justifyContent: align }' v-for='(item, index) in filesList' :key='index'>
          <img class='file-view-item-icon' alt=''
               :src='require(`@/assets/file/${getFileSuffix(item.fileSuffix)}.png`)' />
          <template v-if='isShowQuery(item)'>
            <div class='file-view-item-info file-view-item-infoHover' @click='previewFile(item)'>
              <a-tooltip placement='topLeft' :title='item.fileName + item.fileSuffix'>
                {{ item.fileName }}.{{ item.fileSuffix }}
              </a-tooltip>
            </div>
          </template>

          <template v-else>
            <div class='file-view-item-info'>
              <a-tooltip placement='top' :title='item.fileName + item.fileSuffix'>
                {{ item.fileName }}.{{ item.fileSuffix }}
              </a-tooltip>
            </div>
          </template>

          <img class='file-view-item-icon mr-5' alt='' @click="downloadFile(item)"
               :src='require(`@/assets/file/down.png`)' />
        </div>
      </div>
    </div>

    <div v-else class='not-file'>
      暂无文件
    </div>

    <my-a ref='myA'></my-a>

  </div>
</template>

<script>
import { filesApiGetListByIds, getPreviewFileUrl, getDownLoadFileUrl } from '@/api/system/files'
import MyA from '@/components/My/MyA'

let fileMap = {
  image: ['png', 'jpeg', 'jpg'],
  word: ['doc', 'docx', 'wps'],
  pdf: ['pdf'],
  ofd: ['ofd'],
  excel: ['xls', 'xlsx'],
  zip: ['zip', 'rar'],
  pptx: ['ppt', 'pptx'],
  bin: ['bin'],
  txt: ['txt'],
  deb: ['deb']
}

export default {
  name: 'MyFileListMinor',
  components: {
    MyA
  },
  props: {
    filesIds: [String, Array],
    emptyText: {
      type: String,
      default: '暂无文件'
    },
    align: {
      type: String,
      default: 'left'
    }
  },
  filters: {
    toKB(val) {
      return (Number(val) / 1024).toFixed(0)
    }
  },
  watch: {
    filesIds: {
      handler: function(filesIds) {
        if (filesIds != null
          && (this.$myUtils.str.isNotEmpty(filesIds)
            || this.$myUtils.coll.isNotEmpty(filesIds))) {
          this.getFilesList(filesIds)
        } else {
          this.filesList = []
        }
      },
      immediate: true
    }
  },
  data() {
    return {
      filesList: []
    }
  },
  methods: {
    getFileSuffix(suffix) {
      let result = ''
      if (fileMap.word.indexOf(suffix) !== -1) {
        result = 'word'
      } else if (fileMap.pdf.indexOf(suffix) !== -1) {
        result = 'pdf'
      } else if (fileMap.ofd.indexOf(suffix) !== -1) {
        result = 'ofd'
      } else if (fileMap.excel.indexOf(suffix) !== -1) {
        result = 'xlsx'
      } else if (fileMap.image.indexOf(suffix) !== -1) {
        result = 'image'
      } else if (fileMap.zip.indexOf(suffix) !== -1) {
        result = 'zip'
      } else if (fileMap.pptx.indexOf(suffix) !== -1) {
        result = 'ppt'
      } else if (fileMap.bin.indexOf(suffix) !== -1) {
        result = 'bin'
      } else if (fileMap.txt.indexOf(suffix) !== -1) {
        result = 'txt'
      } else {
        result = 'other'
      }
      return result
    },
    /**
     * 是否显示查看按钮
     * @param item
     * @returns {boolean}
     */
    isShowQuery(item) {
      let show = false
      if (item) {
        switch (item.fileSuffix) {
          case 'pdf':
          case 'doc':
          case 'docx':
          case 'ofd':
          case 'jpg':
          case 'png':
          case 'jpeg':
            show = true
        }
      }
      return show
    },
    /**
     * 文件预览
     * @param {*} files
     */
    previewFile(files) {
      if ('ofd' === files.fileSuffix) {
        const routeData = this.$router.resolve({
          path: '/ofd/preview',
          query: {
            id: files.fileId
          }
        });
        window.open(routeData.href, "_blank");
      } else {
        const url = getPreviewFileUrl(files.fileId)
        this.$refs.myA.target(url)
      }
    },
    /**
     * 文件下载
     * @param {*} files
     */
    downloadFile(files) {
      const url = getDownLoadFileUrl(files.fileId)
      this.$refs.myA.target(url)
    },
    getFilesList(filesIds) {
      let ids = ''
      if (filesIds.constructor == String) {
        ids = filesIds
      } else {
        ids = filesIds.join()
      }
      filesApiGetListByIds(ids).then(res => {
        this.filesList = res.data
      })
    }
  }
}
</script>

<style lang='less' scoped>
@themeColor: #409eff;

.file {
  width: 100%;
  height: 100%;

  &-view {
    width: 100%;

    &-item {
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      box-sizing: border-box;

      &:not(:last-child) {
        margin-bottom: 3px;
      }

      &-icon {
        width: 20px;
        height: 20px;
        object-fit: cover;
        cursor: pointer;
      }

      &-info {
        font-family: "Arial Negreta", "Arial Normal", "Arial", sans-serif;
        font-size: 14px;
        text-align: left;
        margin-left: 5px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        cursor: pointer;
      }

      &-infoHover {
        color: @themeColor;
        &:hover {
          text-decoration: underline;
        }
      }
    }
  }
}

.mr-5 {
  margin-left: 5px;
}

.not-file {
  font-family: "Arial Negreta", "Arial Normal", "Arial", sans-serif;
  font-size: 14px;
}
</style>

文件预览为ofd时走ofd预览，否则走正常的预览文件接口

previewFile(files) {
      if ('ofd' === files.fileSuffix) {
        const routeData = this.$router.resolve({
          path: '/ofd/preview',
          query: {
            id: files.fileId
          }
        });
        window.open(routeData.href, "_blank");
      } else {
        const url = getPreviewFileUrl(files.fileId)
        this.$refs.myA.target(url)
      }
    },

ofd文件预览组件

<template>
  <div class="main-section" id="content" ref="contentDiv" @mousewheel="scrool"></div>
</template>

<script>
import {parseOfdDocument, renderOfd, digestCheck, getPageScale} from '@/utils/ofd/ofd';
import {getPreviewFileUrl} from "@/api/system/files";
import axios from 'axios';

export default {
  name: 'preview',
  data() {
    return {
      docleft: 0,//公章距离左侧文档边缘的距离
      leftMenu_width: 0,//左侧菜单宽度
      ofdBase64: null,
      loading: false,
      pageIndex: 1,
      pageCount: 0,
      scale: 0,
      ofdObj: null,
      screenWidth: document.body.clientWidth,
    }
  },
  mounted() {
    this.screenWidth = document.body.clientWidth - this.leftMenu_width;
    this.$refs.contentDiv.addEventListener('scroll', this.scrool);
    this.getOfd(this.$route.query.id)
  },
  methods: {
    getOfd(id) {
      axios({
        url: getPreviewFileUrl(id),
        responseType: 'blob'
      }).then(res => {
        const files = new window.File([res.data], "ofd", {type: 'application/ofd'});
        this.getOfdDocumentObj(files, this.screenWidth);
      })
    },
    scrool() {
      let scrolled = this.$refs.contentDiv.firstElementChild?.getBoundingClientRect()?.top - 60;
      let top = 0
      let index = 0;
      for (let i = 0; i < this.$refs.contentDiv.childElementCount; i++) {
        top += (Math.abs(this.$refs.contentDiv.children.item(i)?.style.height.replace('px', '')) + Math.abs(this.$refs.contentDiv.children.item(i)?.style.marginBottom.replace('px', '')));
        if (Math.abs(scrolled) < top) {
          index = i;
          break;
        }
      }
      this.pageIndex = index + 1;
    },
    getOfdDocumentObj(file, screenWidth) {
      let that = this;
      this.loading = true;
      parseOfdDocument({
        ofd: file,
        success(res) {
          that.ofdObj = res[0];
          that.pageCount = res[0].pages.length;
          const divs = renderOfd(screenWidth, res[0]);
          that.displayOfdDiv(divs);
          that.loading = false;
        },
        fail(error) {
          that.loading = false;
          that.$alert('OFD打开失败', error, {
            confirmButtonText: '确定',
            callback: action => {
              this.$message({
                type: 'info',
                message: `action: ${action}`
              });
            }
          });
        }
      });
    },
    displayOfdDiv(divs) {
      this.scale = getPageScale();
      let contentDiv = document.getElementById('content');
      contentDiv.innerHTML = '';
      for (const div of divs) {
        contentDiv.appendChild(div)
      }
      for (let ele of document.getElementsByName('seal_img_div')) {
        this.addEventOnSealDiv(ele, JSON.parse(ele.dataset.sesSignature), JSON.parse(ele.dataset.signedInfo));
      }
    },
    addEventOnSealDiv(div, SES_Signature, signedInfo) {
      try {
        global.HashRet = null;
        global.VerifyRet = signedInfo.VerifyRet;
        div.addEventListener("click", function () {
          document.getElementById('sealInfoDiv').hidden = false;
          document.getElementById('sealInfoDiv').setAttribute('style', 'display:flex;align-items: center;justify-content: center;');
          if (SES_Signature.realVersion < 4) {
            document.getElementById('spSigner').innerText = SES_Signature.toSign.cert['commonName'];
            document.getElementById('spProvider').innerText = signedInfo.Provider['@_ProviderName'];
            document.getElementById('spHashedValue').innerText = SES_Signature.toSign.dataHash.replace(/\n/g, '');
            document.getElementById('spSignedValue').innerText = SES_Signature.signature.replace(/\n/g, '');
            document.getElementById('spSignMethod').innerText = SES_Signature.toSign.signatureAlgorithm.replace(/\n/g, '');
            document.getElementById('spSealID').innerText = SES_Signature.toSign.eseal.esealInfo.esID;
            document.getElementById('spSealName').innerText = SES_Signature.toSign.eseal.esealInfo.property.name;
            document.getElementById('spSealType').innerText = SES_Signature.toSign.eseal.esealInfo.property.type;
            document.getElementById('spSealAuthTime').innerText = "从 " + SES_Signature.toSign.eseal.esealInfo.property.validStart + " 到 " + SES_Signature.toSign.eseal.esealInfo.property.validEnd;
            document.getElementById('spSealMakeTime').innerText = SES_Signature.toSign.eseal.esealInfo.property.createDate;
            document.getElementById('spSealVersion').innerText = SES_Signature.toSign.eseal.esealInfo.header.version;
          } else {
            document.getElementById('spSigner').innerText = SES_Signature.cert['commonName'];
            document.getElementById('spProvider').innerText = signedInfo.Provider['@_ProviderName'];
            document.getElementById('spHashedValue').innerText = SES_Signature.toSign.dataHash.replace(/\n/g, '');
            document.getElementById('spSignedValue').innerText = SES_Signature.signature.replace(/\n/g, '');
            document.getElementById('spSignMethod').innerText = SES_Signature.signatureAlgID.replace(/\n/g, '');
            document.getElementById('spSealID').innerText = SES_Signature.toSign.eseal.esealInfo.esID;
            document.getElementById('spSealName').innerText = SES_Signature.toSign.eseal.esealInfo.property.name;
            document.getElementById('spSealType').innerText = SES_Signature.toSign.eseal.esealInfo.property.type;
            document.getElementById('spSealAuthTime').innerText = "从 " + SES_Signature.toSign.eseal.esealInfo.property.validStart + " 到 " + SES_Signature.toSign.eseal.esealInfo.property.validEnd;
            document.getElementById('spSealMakeTime').innerText = SES_Signature.toSign.eseal.esealInfo.property.createDate;
            document.getElementById('spSealVersion').innerText = SES_Signature.toSign.eseal.esealInfo.header.version;
          }
          document.getElementById('spVersion').innerText = SES_Signature.toSign.version;
          document.getElementById('VerifyRet').innerText = "文件摘要值后台验证中，请稍等... " + (global.VerifyRet ? "签名值验证成功" : "签名值验证失败");
          if (global.HashRet == null || global.HashRet == undefined || Object.keys(global.HashRet).length <= 0) {
            setTimeout(function () {
              const signRetStr = global.VerifyRet ? "签名值验证成功" : "签名值验证失败";
              global.HashRet = digestCheck(global.toBeChecked.get(signedInfo.signatureID));
              const hashRetStr = global.HashRet ? "文件摘要值验证成功" : "文件摘要值验证失败";
              document.getElementById('VerifyRet').innerText = hashRetStr + " " + signRetStr;
            }, 1000);
          }
        });
      } catch (e) {
        console.log(e);
      }
      if (!global.VerifyRet) {
        div.setAttribute('class', 'gray');
      }
    }

  }
}
</script>

<style scoped>
.main-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  margin: 10px auto 0;
  border: 1px solid #f7f7f7;
  box-shadow: 0 3px 10px 0 rgba(76, 101, 123, 0.12);
}
</style>

将文件引入到src下
资源在笔记里面找一下