118 lines
3.0 KiB
Vue
118 lines
3.0 KiB
Vue
<!--
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* @Author: zhaojinfeng 121016171@qq.com
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* @Date: 2023-08-16 17:33:41
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* @LastEditors: peerless_hero peerless_hero@outlook.com
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* @LastEditTime: 2023-08-30 15:24:13
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* @FilePath: \vue3\packages\upload-list\index.vue
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* @Description:
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*
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-->
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<template>
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<el-upload
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v-model:file-list="userFiles"
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:accept="accept"
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:disabled="disabled"
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:before-upload="beforeUpload"
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:http-request="httpRequest"
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@preview="preview"
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@success="success"
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@remove="remove"
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>
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<slot>
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<el-button type="primary" plain :disabled="disabled">
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点击上传
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</el-button>
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</slot>
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</el-upload>
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</template>
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<script lang="ts" setup name="ThUploadList">
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import type { UploadFile, UploadFiles, UploadRawFile, UploadRequestOptions, UploadUserFile } from 'element-plus'
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const props = withDefaults(
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defineProps<{
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/** 可上传的文件类型 */
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accept?: string
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/** 文件集合 */
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fileList?: FileVO[]
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/** 文件上传的请求函数 */
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request: (formData: FormData, args?: any) => Promise<FileVO>
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/** 自定义文件上传路径前缀 */
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filePath?: string
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/** 禁用组件 */
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disabled?: boolean
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/** 最大上传大小（Mb） */
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maxsize?: number
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}>(), {
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fileList: () => [],
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maxsize: 100,
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},
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)
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const emit = defineEmits<{
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(event: 'update:file-list', file: FileVO[]): void
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(event: 'preview', file: UploadFile): void
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}>()
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const userFiles = ref<UploadUserFile[]>([])
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function beforeUpload(rawFile: UploadRawFile) {
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if (rawFile.size > props.maxsize * 1024 * 1024) {
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const err = `文件大小不能超过${props.maxsize}Mb`
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ElMessage.error(err)
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return false
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}
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return true
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}
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async function httpRequest({ file, onProgress, onSuccess, onError }: UploadRequestOptions) {
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const formData = new FormData()
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formData.append('file', file)
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if (props.filePath)
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formData.append('filePath', props.filePath)
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try {
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const res = await props.request(formData, {
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onUploadProgress(e: ProgressEvent) {
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onProgress({ ...e, percent: Math.floor(e.loaded * 100 / e.total) })
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},
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})
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onSuccess(res)
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}
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catch (err) {
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onError(err)
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}
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}
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function preview(uploadFile: UploadFile) {
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emit('preview', uploadFile)
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}
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const { pause, resume } = watchPausable(
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() => props.fileList, (fileList) => {
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userFiles.value = fileList.map(file => ({
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...file,
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status: 'success',
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percentage: 100,
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uid: file.id,
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}))
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},
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{ immediate: true },
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)
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function success(response: FileVO, uploadFile: UploadFile, uploadFiles: UploadFiles) {
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// 将返回响应合并到文件上
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Object.assign(uploadFile, response)
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// 手动更新，暂停监听，避免因props.fileList更新再次更新uploadFile
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pause()
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emit('update:file-list', uploadFiles)
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resume()
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}
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function remove(_uploadFile: UploadFile, uploadFiles: UploadFiles) {
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userFiles.value = uploadFiles
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// 手动更新，暂停监听，避免因props.fileList更新再次更新uploadFile
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pause()
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emit('update:file-list', uploadFiles)
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resume()
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}
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</script>
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