From a2546b293a3160d1f8a56d33d8c88e3e14c2bff0 Mon Sep 17 00:00:00 2001
From: XaoLi717 <144221124+XaoLi717@users.noreply.github.com>
Date: Tue, 5 Nov 2024 10:59:17 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8E=9F=E5=A7=8B=E7=89=88=E6=9C=AC=E5=A4=87?=
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---
 .../UploadFile/src/UploadFile_BK.vue          | 215 ++++++++++++++++++
 1 file changed, 215 insertions(+)
 create mode 100644 src/components/UploadFile/src/UploadFile_BK.vue

diff --git a/src/components/UploadFile/src/UploadFile_BK.vue b/src/components/UploadFile/src/UploadFile_BK.vue
new file mode 100644
index 0000000..a909ec6
--- /dev/null
+++ b/src/components/UploadFile/src/UploadFile_BK.vue
@@ -0,0 +1,215 @@
+d<template>
+  <div class="upload-file">
+    <el-upload
+      ref="uploadRef"
+      v-model:file-list="fileList"
+      :action="uploadUrl"
+      :auto-upload="autoUpload"
+      :before-upload="beforeUpload"
+      :disabled="disabled"
+      :drag="drag"
+      :http-request="httpRequest"
+      :limit="props.limit"
+      :multiple="props.limit > 1"
+      :on-error="excelUploadError"
+      :on-exceed="handleExceed"
+      :on-preview="handlePreview"
+      :on-remove="handleRemove"
+      :on-success="handleFileSuccess"
+      :show-file-list="true"
+      class="upload-file-uploader"
+      name="file"
+    >
+      <el-button v-if="!disabled" type="primary">
+        <Icon icon="ep:upload-filled" />
+        选取文件
+      </el-button>
+      <template v-if="isShowTip && !disabled" #tip>
+        <div style="font-size: 8px">
+          大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b>
+        </div>
+        <div style="font-size: 8px">
+          格式为 <b style="color: #f56c6c">{{ fileType.join('/') }}</b> 的文件
+        </div>
+      </template>
+      <template #file="row">
+        <div class="flex items-center">
+          <span>{{ row.file.name }}</span>
+          <div class="ml-10px">
+            <el-link
+              :href="row.file.url"
+              :underline="false"
+              download
+              target="_blank"
+              type="primary"
+            >
+              下载
+            </el-link>
+          </div>
+          <div class="ml-10px">
+            <el-button link type="danger" @click="handleRemove(row.file)"> 删除</el-button>
+          </div>
+        </div>
+      </template>
+    </el-upload>
+  </div>
+</template>
+<script lang="ts" setup>
+import { propTypes } from '@/utils/propTypes'
+import type { UploadInstance, UploadProps, UploadRawFile, UploadUserFile } from 'element-plus'
+import { isString } from '@/utils/is'
+import { useUpload } from '@/components/UploadFile/src/useUpload'
+import { UploadFile } from 'element-plus/es/components/upload/src/upload'
+
+defineOptions({ name: 'UploadFile' })
+
+const message = useMessage() // 消息弹窗
+const emit = defineEmits(['update:modelValue'])
+
+const props = defineProps({
+  modelValue: propTypes.oneOfType<string | string[]>([String, Array<String>]).isRequired,
+  fileType: propTypes.array.def(['doc', 'xls', 'ppt', 'txt', 'pdf']), // 文件类型, 例如['png', 'jpg', 'jpeg']
+  fileSize: propTypes.number.def(5), // 大小限制(MB)
+  limit: propTypes.number.def(5), // 数量限制
+  autoUpload: propTypes.bool.def(true), // 自动上传
+  drag: propTypes.bool.def(false), // 拖拽上传
+  isShowTip: propTypes.bool.def(true), // 是否显示提示
+  disabled: propTypes.bool.def(false) // 是否禁用上传组件 ==> 非必传（默认为 false）
+})
+
+// ========== 上传相关 ==========
+const uploadRef = ref<UploadInstance>()
+const uploadList = ref<UploadUserFile[]>([])
+const fileList = ref<UploadUserFile[]>([])
+const uploadNumber = ref<number>(0)
+
+const { uploadUrl, httpRequest } = useUpload()
+
+// 文件上传之前判断
+const beforeUpload: UploadProps['beforeUpload'] = (file: UploadRawFile) => {
+  if (fileList.value.length >= props.limit) {
+    message.error(`上传文件数量不能超过${props.limit}个!`)
+    return false
+  }
+  let fileExtension = ''
+  if (file.name.lastIndexOf('.') > -1) {
+    fileExtension = file.name.slice(file.name.lastIndexOf('.') + 1)
+  }
+  const isImg = props.fileType.some((type: string) => {
+    if (file.type.indexOf(type) > -1) return true
+    return !!(fileExtension && fileExtension.indexOf(type) > -1)
+  })
+  const isLimit = file.size < props.fileSize * 1024 * 1024
+  if (!isImg) {
+    message.error(`文件格式不正确, 请上传${props.fileType.join('/')}格式!`)
+    return false
+  }
+  if (!isLimit) {
+    message.error(`上传文件大小不能超过${props.fileSize}MB!`)
+    return false
+  }
+  message.success('正在上传文件，请稍候...')
+  uploadNumber.value++
+}
+// 处理上传的文件发生变化
+// const handleFileChange = (uploadFile: UploadFile): void => {
+//   uploadRef.value.data.path = uploadFile.name
+// }
+// 文件上传成功
+const handleFileSuccess: UploadProps['onSuccess'] = (res: any): void => {
+  message.success('上传成功')
+
+  // 删除自身
+  const index = fileList.value.findIndex((item) => item.response?.data === res.data)
+  fileList.value.splice(index, 1)
+  uploadList.value.push({ name: res.data, url: res.data })
+  if (uploadList.value.length == uploadNumber.value) {
+    fileList.value.push(...uploadList.value)
+    uploadList.value = []
+    uploadNumber.value = 0
+    emitUpdateModelValue()
+  }
+}
+// 文件数超出提示
+const handleExceed: UploadProps['onExceed'] = (): void => {
+  message.error(`上传文件数量不能超过${props.limit}个!`)
+}
+// 上传错误提示
+const excelUploadError: UploadProps['onError'] = (): void => {
+  message.error('导入数据失败，请您重新上传！')
+}
+// 删除上传文件
+const handleRemove = (file: UploadFile) => {
+  const index = fileList.value.map((f) => f.name).indexOf(file.name)
+  if (index > -1) {
+    fileList.value.splice(index, 1)
+    emitUpdateModelValue()
+  }
+}
+const handlePreview: UploadProps['onPreview'] = (uploadFile) => {
+  console.log(uploadFile)
+}
+
+// 监听模型绑定值变动
+watch(
+  () => props.modelValue,
+  (val: string | string[]) => {
+    if (!val) {
+      fileList.value = [] // fix：处理掉缓存，表单重置后上传组件的内容并没有重置
+      return
+    }
+
+    fileList.value = [] // 保障数据为空
+    // 情况1：字符串
+    if (isString(val)) {
+      fileList.value.push(
+        ...val.split(',').map((url) => ({ name: url.substring(url.lastIndexOf('/') + 1), url }))
+      )
+      return
+    }
+    // 情况2：数组
+    fileList.value.push(
+      ...(val as string[]).map((url) => ({ name: url.substring(url.lastIndexOf('/') + 1), url }))
+    )
+  },
+  { immediate: true, deep: true }
+)
+// 发送文件链接列表更新
+const emitUpdateModelValue = () => {
+  // 情况1：数组结果
+  let result: string | string[] = fileList.value.map((file) => file.url!)
+  // 情况2：逗号分隔的字符串
+  if (props.limit === 1 || isString(props.modelValue)) {
+    result = result.join(',')
+  }
+
+  emit('update:modelValue', result)
+}
+</script>
+<style lang="scss" scoped>
+.upload-file-uploader {
+  margin-bottom: 5px;
+}
+
+:deep(.upload-file-list .el-upload-list__item) {
+  position: relative;
+  margin-bottom: 10px;
+  line-height: 2;
+  border: 1px solid #e4e7ed;
+}
+
+:deep(.el-upload-list__item-file-name) {
+  max-width: 250px;
+}
+
+:deep(.upload-file-list .ele-upload-list__item-content) {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  color: inherit;
+}
+
+:deep(.ele-upload-list__item-content-action .el-link) {
+  margin-right: 10px;
+}
+</style>