<template>
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<view class="uni-file-picker">
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<view v-if="title" class="uni-file-picker__header">
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<text class="file-title">{{ title }}</text>
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<text class="file-count">{{ filesList.length }}/{{ limitLength }}</text>
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</view>
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<upload-image v-if="fileMediatype === 'image' && showType === 'grid'" :readonly="readonly"
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:image-styles="imageStyles" :files-list="filesList" :limit="limitLength" :disablePreview="disablePreview"
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:delIcon="delIcon" @uploadFiles="uploadFiles" @choose="choose" @delFile="delFile">
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<slot>
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<view class="is-add">
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<view class="icon-add"></view>
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<view class="icon-add rotate"></view>
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</view>
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</slot>
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</upload-image>
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<upload-file v-if="fileMediatype !== 'image' || showType !== 'grid'" :readonly="readonly"
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:list-styles="listStyles" :files-list="filesList" :showType="showType" :delIcon="delIcon"
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@uploadFiles="uploadFiles" @choose="choose" @delFile="delFile">
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<slot><button type="primary" size="mini">选择文件</button></slot>
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</upload-file>
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</view>
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</template>
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<script>
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import {
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chooseAndUploadFile,
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uploadCloudFiles
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} from './choose-and-upload-file.js'
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import {
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get_file_ext,
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get_extname,
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get_files_and_is_max,
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get_file_info,
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get_file_data
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} from './utils.js'
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import uploadImage from './upload-image.vue'
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import uploadFile from './upload-file.vue'
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let fileInput = null
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/**
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* FilePicker 文件选择上传
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* @description 文件选择上传组件，可以选择图片、视频等任意文件并上传到当前绑定的服务空间
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* @tutorial https://ext.dcloud.net.cn/plugin?id=4079
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* @property {Object|Array} value 组件数据，通常用来回显 ,类型由return-type属性决定
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* @property {Boolean} disabled = [true|false] 组件禁用
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* @value true 禁用
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* @value false 取消禁用
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* @property {Boolean} readonly = [true|false] 组件只读，不可选择，不显示进度，不显示删除按钮
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* @value true 只读
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* @value false 取消只读
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* @property {String} return-type = [array|object] 限制 value 格式，当为 object 时 ，组件只能单选，且会覆盖
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* @value array 规定 value 属性的类型为数组
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* @value object 规定 value 属性的类型为对象
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* @property {Boolean} disable-preview = [true|false] 禁用图片预览，仅 mode:grid 时生效
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* @value true 禁用图片预览
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* @value false 取消禁用图片预览
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* @property {Boolean} del-icon = [true|false] 是否显示删除按钮
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* @value true 显示删除按钮
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* @value false 不显示删除按钮
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* @property {Boolean} auto-upload = [true|false] 是否自动上传，值为true则只触发@select,可自行上传
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* @value true 自动上传
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* @value false 取消自动上传
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* @property {Number|String} limit 最大选择个数 ，h5 会自动忽略多选的部分
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* @property {String} title 组件标题，右侧显示上传计数
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* @property {String} mode = [list|grid] 选择文件后的文件列表样式
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* @value list 列表显示
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* @value grid 宫格显示
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* @property {String} file-mediatype = [image|video|all] 选择文件类型
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* @value image 只选择图片
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* @value video 只选择视频
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* @value all 选择所有文件
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* @property {Array} file-extname 选择文件后缀，根据 file-mediatype 属性而不同
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* @property {Object} list-style mode:list 时的样式
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* @property {Object} image-styles 选择文件后缀，根据 file-mediatype 属性而不同
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* @event {Function} select 选择文件后触发
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* @event {Function} progress 文件上传时触发
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* @event {Function} success 上传成功触发
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* @event {Function} fail 上传失败触发
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* @event {Function} delete 文件从列表移除时触发
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*/
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export default {
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name: 'uniFilePicker',
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components: {
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uploadImage,
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uploadFile
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},
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options: {
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virtualHost: true
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},
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emits: ['select', 'success', 'fail', 'progress', 'delete', 'update:modelValue', 'input'],
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props: {
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// #ifdef VUE3
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modelValue: {
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type: [Array, Object],
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default () {
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return []
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}
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},
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// #endif
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// #ifndef VUE3
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value: {
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type: [Array, Object],
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default () {
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return []
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}
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},
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// #endif
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disabled: {
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type: Boolean,
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default: false
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},
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disablePreview: {
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type: Boolean,
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default: false
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},
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delIcon: {
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type: Boolean,
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default: true
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},
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// 自动上传
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autoUpload: {
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type: Boolean,
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default: true
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},
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// 最大选择个数 ，h5只能限制单选或是多选
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limit: {
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type: [Number, String],
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default: 9
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},
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// 列表样式 grid | list | list-card
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mode: {
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type: String,
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default: 'grid'
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},
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// 选择文件类型 image/video/all
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fileMediatype: {
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type: String,
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default: 'image'
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},
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// 文件类型筛选
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fileExtname: {
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type: [Array, String],
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default () {
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return []
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}
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},
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title: {
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type: String,
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default: ''
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},
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listStyles: {
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type: Object,
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default () {
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return {
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// 是否显示边框
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border: true,
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// 是否显示分隔线
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dividline: true,
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// 线条样式
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borderStyle: {}
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}
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}
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},
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imageStyles: {
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type: Object,
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default () {
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return {
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width: 'auto',
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height: 'auto'
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}
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}
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},
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readonly: {
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type: Boolean,
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default: false
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},
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returnType: {
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type: String,
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default: 'array'
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},
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sizeType: {
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type: Array,
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default () {
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return ['original', 'compressed']
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}
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}
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},
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data() {
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return {
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files: [],
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localValue: []
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}
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},
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watch: {
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// #ifndef VUE3
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value: {
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handler(newVal, oldVal) {
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this.setValue(newVal, oldVal)
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},
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immediate: true
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},
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// #endif
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// #ifdef VUE3
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modelValue: {
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handler(newVal, oldVal) {
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this.setValue(newVal, oldVal)
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},
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immediate: true
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},
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// #endif
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},
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computed: {
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filesList() {
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let files = []
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this.files.forEach(v => {
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files.push(v)
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})
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return files
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},
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showType() {
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if (this.fileMediatype === 'image') {
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return this.mode
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}
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return 'list'
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},
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limitLength() {
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if (this.returnType === 'object') {
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return 1
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}
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if (!this.limit) {
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return 1
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}
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if (this.limit >= 9) {
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return 9
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}
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return this.limit
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}
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},
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created() {
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// TODO 兼容不开通服务空间的情况
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if (!(uniCloud.config && uniCloud.config.provider)) {
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this.noSpace = true
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uniCloud.chooseAndUploadFile = chooseAndUploadFile
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}
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this.form = this.getForm('uniForms')
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this.formItem = this.getForm('uniFormsItem')
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if (this.form && this.formItem) {
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if (this.formItem.name) {
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this.rename = this.formItem.name
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this.form.inputChildrens.push(this)
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}
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}
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},
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methods: {
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/**
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* 公开用户使用，清空文件
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* @param {Object} index
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*/
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clearFiles(index) {
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if (index !== 0 && !index) {
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this.files = []
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this.$nextTick(() => {
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this.setEmit()
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})
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} else {
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this.files.splice(index, 1)
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}
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this.$nextTick(() => {
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this.setEmit()
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})
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},
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/**
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* 公开用户使用，继续上传
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*/
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upload() {
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let files = []
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this.files.forEach((v, index) => {
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if (v.status === 'ready' || v.status === 'error') {
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files.push(Object.assign({}, v))
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}
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})
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return this.uploadFiles(files)
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},
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async setValue(newVal, oldVal) {
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const newData = async (v) => {
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const reg = /cloud:\/\/([\w.]+\/?)\S*/
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let url = ''
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if(v.fileID){
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url = v.fileID
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}else{
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url = v.url
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}
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if (reg.test(url)) {
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v.fileID = url
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v.url = await this.getTempFileURL(url)
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}
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if(v.url) v.path = v.url
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return v
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}
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if (this.returnType === 'object') {
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if (newVal) {
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await newData(newVal)
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} else {
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newVal = {}
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}
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} else {
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if (!newVal) newVal = []
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for(let i =0 ;i < newVal.length ;i++){
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let v = newVal[i]
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await newData(v)
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}
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}
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this.localValue = newVal
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if (this.form && this.formItem &&!this.is_reset) {
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this.is_reset = false
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this.formItem.setValue(this.localValue)
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}
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let filesData = Object.keys(newVal).length > 0 ? newVal : [];
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this.files = [].concat(filesData)
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},
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/**
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* 选择文件
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*/
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choose() {
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if (this.disabled) return
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if (this.files.length >= Number(this.limitLength) && this.showType !== 'grid' && this.returnType ===
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'array') {
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uni.showToast({
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title: `您最多选择 ${this.limitLength} 个文件`,
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icon: 'none'
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})
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return
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}
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this.chooseFiles()
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},
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/**
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* 选择文件并上传
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*/
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chooseFiles() {
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const _extname = get_extname(this.fileExtname)
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// 获取后缀
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uniCloud
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.chooseAndUploadFile({
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type: this.fileMediatype,
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compressed: false,
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sizeType: this.sizeType,
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// TODO 如果为空，video 有问题
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extension: _extname.length > 0 ? _extname : undefined,
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count: this.limitLength - this.files.length, //默认9
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onChooseFile: this.chooseFileCallback,
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onUploadProgress: progressEvent => {
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this.setProgress(progressEvent, progressEvent.index)
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}
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})
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.then(result => {
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this.setSuccessAndError(result.tempFiles)
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})
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.catch(err => {
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console.log('选择失败', err)
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})
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},
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/**
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* 选择文件回调
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* @param {Object} res
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*/
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async chooseFileCallback(res) {
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const _extname = get_extname(this.fileExtname)
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const is_one = (Number(this.limitLength) === 1 &&
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this.disablePreview &&
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!this.disabled) ||
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this.returnType === 'object'
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// 如果这有一个文件 ，需要清空本地缓存数据
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if (is_one) {
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this.files = []
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}
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let {
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filePaths,
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files
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} = get_files_and_is_max(res, _extname)
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if (!(_extname && _extname.length > 0)) {
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filePaths = res.tempFilePaths
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files = res.tempFiles
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}
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let currentData = []
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for (let i = 0; i < files.length; i++) {
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if (this.limitLength - this.files.length <= 0) break
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files[i].uuid = Date.now()
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let filedata = await get_file_data(files[i], this.fileMediatype)
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filedata.progress = 0
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filedata.status = 'ready'
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this.files.push(filedata)
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currentData.push({
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...filedata,
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file: files[i]
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})
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}
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this.$emit('select', {
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tempFiles: currentData,
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tempFilePaths: filePaths
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})
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res.tempFiles = files
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// 停止自动上传
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if (!this.autoUpload || this.noSpace) {
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res.tempFiles = []
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}
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},
|
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/**
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* 批传
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* @param {Object} e
|
*/
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uploadFiles(files) {
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files = [].concat(files)
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return uploadCloudFiles.call(this, files, 5, res => {
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this.setProgress(res, res.index, true)
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})
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.then(result => {
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this.setSuccessAndError(result)
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return result;
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})
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.catch(err => {
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console.log(err)
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})
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},
|
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/**
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* 成功或失败
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*/
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async setSuccessAndError(res, fn) {
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let successData = []
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let errorData = []
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let tempFilePath = []
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let errorTempFilePath = []
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for (let i = 0; i < res.length; i++) {
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const item = res[i]
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const index = item.uuid ? this.files.findIndex(p => p.uuid === item.uuid) : item.index
|
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if (index === -1 || !this.files) break
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if (item.errMsg === 'request:fail') {
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this.files[index].url = item.path
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this.files[index].status = 'error'
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this.files[index].errMsg = item.errMsg
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// this.files[index].progress = -1
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errorData.push(this.files[index])
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errorTempFilePath.push(this.files[index].url)
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} else {
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this.files[index].errMsg = ''
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this.files[index].fileID = item.url
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const reg = /cloud:\/\/([\w.]+\/?)\S*/
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if (reg.test(item.url)) {
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this.files[index].url = await this.getTempFileURL(item.url)
|
}else{
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this.files[index].url = item.url
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}
|
|
this.files[index].status = 'success'
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this.files[index].progress += 1
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successData.push(this.files[index])
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tempFilePath.push(this.files[index].fileID)
|
}
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}
|
|
if (successData.length > 0) {
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this.setEmit()
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// 状态改变返回
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this.$emit('success', {
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tempFiles: this.backObject(successData),
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tempFilePaths: tempFilePath
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})
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}
|
|
if (errorData.length > 0) {
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this.$emit('fail', {
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tempFiles: this.backObject(errorData),
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tempFilePaths: errorTempFilePath
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})
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}
|
},
|
|
/**
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* 获取进度
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* @param {Object} progressEvent
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* @param {Object} index
|
* @param {Object} type
|
*/
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setProgress(progressEvent, index, type) {
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const fileLenth = this.files.length
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const percentNum = (index / fileLenth) * 100
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const percentCompleted = Math.round((progressEvent.loaded * 100) / progressEvent.total)
|
let idx = index
|
if (!type) {
|
idx = this.files.findIndex(p => p.uuid === progressEvent.tempFile.uuid)
|
}
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if (idx === -1 || !this.files[idx]) return
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// fix by mehaotian 100 就会消失，-1 是为了让进度条消失
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this.files[idx].progress = percentCompleted - 1
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// 上传中
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this.$emit('progress', {
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index: idx,
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progress: parseInt(percentCompleted),
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tempFile: this.files[idx]
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})
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},
|
|
/**
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* 删除文件
|
* @param {Object} index
|
*/
|
delFile(index) {
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this.$emit('delete', {
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tempFile: this.files[index],
|
tempFilePath: this.files[index].url
|
})
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this.files.splice(index, 1)
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this.$nextTick(() => {
|
this.setEmit()
|
})
|
},
|
|
/**
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* 获取文件名和后缀
|
* @param {Object} name
|
*/
|
getFileExt(name) {
|
const last_len = name.lastIndexOf('.')
|
const len = name.length
|
return {
|
name: name.substring(0, last_len),
|
ext: name.substring(last_len + 1, len)
|
}
|
},
|
|
/**
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* 处理返回事件
|
*/
|
setEmit() {
|
let data = []
|
if (this.returnType === 'object') {
|
data = this.backObject(this.files)[0]
|
this.localValue = data?data:null
|
} else {
|
data = this.backObject(this.files)
|
if (!this.localValue) {
|
this.localValue = []
|
}
|
this.localValue = [...data]
|
}
|
// #ifdef VUE3
|
this.$emit('update:modelValue', this.localValue)
|
// #endif
|
// #ifndef VUE3
|
this.$emit('input', this.localValue)
|
// #endif
|
},
|
|
/**
|
* 处理返回参数
|
* @param {Object} files
|
*/
|
backObject(files) {
|
let newFilesData = []
|
files.forEach(v => {
|
newFilesData.push({
|
extname: v.extname,
|
fileType: v.fileType,
|
image: v.image,
|
name: v.name,
|
path: v.path,
|
size: v.size,
|
fileID:v.fileID,
|
url: v.url
|
})
|
})
|
return newFilesData
|
},
|
async getTempFileURL(fileList) {
|
fileList = {
|
fileList: [].concat(fileList)
|
}
|
const urls = await uniCloud.getTempFileURL(fileList)
|
return urls.fileList[0].tempFileURL || ''
|
},
|
/**
|
* 获取父元素实例
|
*/
|
getForm(name = 'uniForms') {
|
let parent = this.$parent;
|
let parentName = parent.$options.name;
|
while (parentName !== name) {
|
parent = parent.$parent;
|
if (!parent) return false;
|
parentName = parent.$options.name;
|
}
|
return parent;
|
}
|
}
|
}
|
</script>
|
|
<style>
|
.uni-file-picker {
|
/* #ifndef APP-NVUE */
|
box-sizing: border-box;
|
overflow: hidden;
|
width: 100%;
|
/* #endif */
|
flex: 1;
|
}
|
|
.uni-file-picker__header {
|
padding-top: 5px;
|
padding-bottom: 10px;
|
/* #ifndef APP-NVUE */
|
display: flex;
|
/* #endif */
|
justify-content: space-between;
|
}
|
|
.file-title {
|
font-size: 14px;
|
color: #333;
|
}
|
|
.file-count {
|
font-size: 14px;
|
color: #999;
|
}
|
|
.is-add {
|
/* #ifndef APP-NVUE */
|
display: flex;
|
/* #endif */
|
align-items: center;
|
justify-content: center;
|
}
|
|
.icon-add {
|
width: 50px;
|
height: 5px;
|
background-color: #f1f1f1;
|
border-radius: 2px;
|
}
|
|
.rotate {
|
position: absolute;
|
transform: rotate(90deg);
|
}
|
</style>
|
