integrated_traffic_uniapp/node_modules/@dcloudio/uni-ui/lib/uni-file-picker/uni-file-picker.vue

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2024-02-06 15:39:22 +08:00
<template>
<view class="uni-file-picker">
<view v-if="title" class="uni-file-picker__header">
<text class="file-title">{{ title }}</text>
<text class="file-count">{{ filesList.length }}/{{ limitLength }}</text>
</view>
<upload-image v-if="fileMediatype === 'image' && showType === 'grid'" :readonly="readonly"
:image-styles="imageStyles" :files-list="filesList" :limit="limitLength" :disablePreview="disablePreview"
:delIcon="delIcon" @uploadFiles="uploadFiles" @choose="choose" @delFile="delFile">
<slot>
<view class="is-add">
<view class="icon-add"></view>
<view class="icon-add rotate"></view>
</view>
</slot>
</upload-image>
<upload-file v-if="fileMediatype !== 'image' || showType !== 'grid'" :readonly="readonly"
:list-styles="listStyles" :files-list="filesList" :showType="showType" :delIcon="delIcon"
@uploadFiles="uploadFiles" @choose="choose" @delFile="delFile">
<slot><button type="primary" size="mini">选择文件</button></slot>
</upload-file>
</view>
</template>
<script>
import {
chooseAndUploadFile,
uploadCloudFiles
} from './choose-and-upload-file.js'
import {
get_file_ext,
get_extname,
get_files_and_is_max,
get_file_info,
get_file_data
} from './utils.js'
import uploadImage from './upload-image.vue'
import uploadFile from './upload-file.vue'
let fileInput = null
/**
* FilePicker 文件选择上传
* @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
* @tutorial https://ext.dcloud.net.cn/plugin?id=4079
* @property {Object|Array} value 组件数据通常用来回显 ,类型由return-type属性决定
* @property {Boolean} disabled = [true|false] 组件禁用
* @value true 禁用
* @value false 取消禁用
* @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
* @value true 只读
* @value false 取消只读
* @property {String} return-type = [array|object] 限制 value 格式当为 object 组件只能单选且会覆盖
* @value array 规定 value 属性的类型为数组
* @value object 规定 value 属性的类型为对象
* @property {Boolean} disable-preview = [true|false] 禁用图片预览 mode:grid 时生效
* @value true 禁用图片预览
* @value false 取消禁用图片预览
* @property {Boolean} del-icon = [true|false] 是否显示删除按钮
* @value true 显示删除按钮
* @value false 不显示删除按钮
* @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
* @value true 自动上传
* @value false 取消自动上传
* @property {Number|String} limit 最大选择个数 h5 会自动忽略多选的部分
* @property {String} title 组件标题右侧显示上传计数
* @property {String} mode = [list|grid] 选择文件后的文件列表样式
* @value list 列表显示
* @value grid 宫格显示
* @property {String} file-mediatype = [image|video|all] 选择文件类型
* @value image 只选择图片
* @value video 只选择视频
* @value all 选择所有文件
* @property {Array} file-extname 选择文件后缀根据 file-mediatype 属性而不同
* @property {Object} list-style mode:list 时的样式
* @property {Object} image-styles 选择文件后缀根据 file-mediatype 属性而不同
* @event {Function} select 选择文件后触发
* @event {Function} progress 文件上传时触发
* @event {Function} success 上传成功触发
* @event {Function} fail 上传失败触发
* @event {Function} delete 文件从列表移除时触发
*/
export default {
name: 'uniFilePicker',
components: {
uploadImage,
uploadFile
},
options: {
virtualHost: true
},
emits: ['select', 'success', 'fail', 'progress', 'delete', 'update:modelValue', 'input'],
props: {
// #ifdef VUE3
modelValue: {
type: [Array, Object],
default () {
return []
}
},
// #endif
// #ifndef VUE3
value: {
type: [Array, Object],
default () {
return []
}
},
// #endif
disabled: {
type: Boolean,
default: false
},
disablePreview: {
type: Boolean,
default: false
},
delIcon: {
type: Boolean,
default: true
},
// 自动上传
autoUpload: {
type: Boolean,
default: true
},
// 最大选择个数 h5只能限制单选或是多选
limit: {
type: [Number, String],
default: 9
},
// 列表样式 grid | list | list-card
mode: {
type: String,
default: 'grid'
},
// 选择文件类型 image/video/all
fileMediatype: {
type: String,
default: 'image'
},
// 文件类型筛选
fileExtname: {
type: [Array, String],
default () {
return []
}
},
title: {
type: String,
default: ''
},
listStyles: {
type: Object,
default () {
return {
// 是否显示边框
border: true,
// 是否显示分隔线
dividline: true,
// 线条样式
borderStyle: {}
}
}
},
imageStyles: {
type: Object,
default () {
return {
width: 'auto',
height: 'auto'
}
}
},
readonly: {
type: Boolean,
default: false
},
returnType: {
type: String,
default: 'array'
},
sizeType: {
type: Array,
default () {
return ['original', 'compressed']
}
},
sourceType: {
type: Array,
default () {
return ['album', 'camera']
}
}
},
data() {
return {
files: [],
localValue: []
}
},
watch: {
// #ifndef VUE3
value: {
handler(newVal, oldVal) {
this.setValue(newVal, oldVal)
},
immediate: true
},
// #endif
// #ifdef VUE3
modelValue: {
handler(newVal, oldVal) {
this.setValue(newVal, oldVal)
},
immediate: true
},
// #endif
},
computed: {
filesList() {
let files = []
this.files.forEach(v => {
files.push(v)
})
return files
},
showType() {
if (this.fileMediatype === 'image') {
return this.mode
}
return 'list'
},
limitLength() {
if (this.returnType === 'object') {
return 1
}
if (!this.limit) {
return 1
}
if (this.limit >= 9) {
return 9
}
return this.limit
}
},
created() {
// TODO 兼容不开通服务空间的情况
if (!(uniCloud.config && uniCloud.config.provider)) {
this.noSpace = true
uniCloud.chooseAndUploadFile = chooseAndUploadFile
}
this.form = this.getForm('uniForms')
this.formItem = this.getForm('uniFormsItem')
if (this.form && this.formItem) {
if (this.formItem.name) {
this.rename = this.formItem.name
this.form.inputChildrens.push(this)
}
}
},
methods: {
/**
* 公开用户使用清空文件
* @param {Object} index
*/
clearFiles(index) {
if (index !== 0 && !index) {
this.files = []
this.$nextTick(() => {
this.setEmit()
})
} else {
this.files.splice(index, 1)
}
this.$nextTick(() => {
this.setEmit()
})
},
/**
* 公开用户使用继续上传
*/
upload() {
let files = []
this.files.forEach((v, index) => {
if (v.status === 'ready' || v.status === 'error') {
files.push(Object.assign({}, v))
}
})
return this.uploadFiles(files)
},
async setValue(newVal, oldVal) {
const newData = async (v) => {
const reg = /cloud:\/\/([\w.]+\/?)\S*/
let url = ''
if(v.fileID){
url = v.fileID
}else{
url = v.url
}
if (reg.test(url)) {
v.fileID = url
v.url = await this.getTempFileURL(url)
}
if(v.url) v.path = v.url
return v
}
if (this.returnType === 'object') {
if (newVal) {
await newData(newVal)
} else {
newVal = {}
}
} else {
if (!newVal) newVal = []
for(let i =0 ;i < newVal.length ;i++){
let v = newVal[i]
await newData(v)
}
}
this.localValue = newVal
if (this.form && this.formItem &&!this.is_reset) {
this.is_reset = false
this.formItem.setValue(this.localValue)
}
let filesData = Object.keys(newVal).length > 0 ? newVal : [];
this.files = [].concat(filesData)
},
/**
* 选择文件
*/
choose() {
if (this.disabled) return
if (this.files.length >= Number(this.limitLength) && this.showType !== 'grid' && this.returnType ===
'array') {
uni.showToast({
title: `您最多选择 ${this.limitLength} 个文件`,
icon: 'none'
})
return
}
this.chooseFiles()
},
/**
* 选择文件并上传
*/
chooseFiles() {
const _extname = get_extname(this.fileExtname)
// 获取后缀
uniCloud
.chooseAndUploadFile({
type: this.fileMediatype,
compressed: false,
sizeType: this.sizeType,
sourceType: this.sourceType,
// TODO 如果为空video 有问题
extension: _extname.length > 0 ? _extname : undefined,
count: this.limitLength - this.files.length, //默认9
onChooseFile: this.chooseFileCallback,
onUploadProgress: progressEvent => {
this.setProgress(progressEvent, progressEvent.index)
}
})
.then(result => {
this.setSuccessAndError(result.tempFiles)
})
.catch(err => {
console.log('选择失败', err)
})
},
/**
* 选择文件回调
* @param {Object} res
*/
async chooseFileCallback(res) {
const _extname = get_extname(this.fileExtname)
const is_one = (Number(this.limitLength) === 1 &&
this.disablePreview &&
!this.disabled) ||
this.returnType === 'object'
// 如果这有一个文件 ,需要清空本地缓存数据
if (is_one) {
this.files = []
}
let {
filePaths,
files
} = get_files_and_is_max(res, _extname)
if (!(_extname && _extname.length > 0)) {
filePaths = res.tempFilePaths
files = res.tempFiles
}
let currentData = []
for (let i = 0; i < files.length; i++) {
if (this.limitLength - this.files.length <= 0) break
files[i].uuid = Date.now()
let filedata = await get_file_data(files[i], this.fileMediatype)
filedata.progress = 0
filedata.status = 'ready'
this.files.push(filedata)
currentData.push({
...filedata,
file: files[i]
})
}
this.$emit('select', {
tempFiles: currentData,
tempFilePaths: filePaths
})
res.tempFiles = files
// 停止自动上传
if (!this.autoUpload || this.noSpace) {
res.tempFiles = []
}
},
/**
* 批传
* @param {Object} e
*/
uploadFiles(files) {
files = [].concat(files)
return uploadCloudFiles.call(this, files, 5, res => {
this.setProgress(res, res.index, true)
})
.then(result => {
this.setSuccessAndError(result)
return result;
})
.catch(err => {
console.log(err)
})
},
/**
* 成功或失败
*/
async setSuccessAndError(res, fn) {
let successData = []
let errorData = []
let tempFilePath = []
let errorTempFilePath = []
for (let i = 0; i < res.length; i++) {
const item = res[i]
const index = item.uuid ? this.files.findIndex(p => p.uuid === item.uuid) : item.index
if (index === -1 || !this.files) break
if (item.errMsg === 'request:fail') {
this.files[index].url = item.path
this.files[index].status = 'error'
this.files[index].errMsg = item.errMsg
// this.files[index].progress = -1
errorData.push(this.files[index])
errorTempFilePath.push(this.files[index].url)
} else {
this.files[index].errMsg = ''
this.files[index].fileID = item.url
const reg = /cloud:\/\/([\w.]+\/?)\S*/
if (reg.test(item.url)) {
this.files[index].url = await this.getTempFileURL(item.url)
}else{
this.files[index].url = item.url
}
this.files[index].status = 'success'
this.files[index].progress += 1
successData.push(this.files[index])
tempFilePath.push(this.files[index].fileID)
}
}
if (successData.length > 0) {
this.setEmit()
// 状态改变返回
this.$emit('success', {
tempFiles: this.backObject(successData),
tempFilePaths: tempFilePath
})
}
if (errorData.length > 0) {
this.$emit('fail', {
tempFiles: this.backObject(errorData),
tempFilePaths: errorTempFilePath
})
}
},
/**
* 获取进度
* @param {Object} progressEvent
* @param {Object} index
* @param {Object} type
*/
setProgress(progressEvent, index, type) {
const fileLenth = this.files.length
const percentNum = (index / fileLenth) * 100
const percentCompleted = Math.round((progressEvent.loaded * 100) / progressEvent.total)
let idx = index
if (!type) {
idx = this.files.findIndex(p => p.uuid === progressEvent.tempFile.uuid)
}
if (idx === -1 || !this.files[idx]) return
// fix by mehaotian 100 就会消失,-1 是为了让进度条消失
this.files[idx].progress = percentCompleted - 1
// 上传中
this.$emit('progress', {
index: idx,
progress: parseInt(percentCompleted),
tempFile: this.files[idx]
})
},
/**
* 删除文件
* @param {Object} index
*/
delFile(index) {
this.$emit('delete', {
tempFile: this.files[index],
tempFilePath: this.files[index].url
})
this.files.splice(index, 1)
this.$nextTick(() => {
this.setEmit()
})
},
/**
* 获取文件名和后缀
* @param {Object} name
*/
getFileExt(name) {
const last_len = name.lastIndexOf('.')
const len = name.length
return {
name: name.substring(0, last_len),
ext: name.substring(last_len + 1, len)
}
},
/**
* 处理返回事件
*/
setEmit() {
let data = []
if (this.returnType === 'object') {
data = this.backObject(this.files)[0]
this.localValue = data?data:null
} else {
data = this.backObject(this.files)
if (!this.localValue) {
this.localValue = []
}
this.localValue = [...data]
}
// #ifdef VUE3
this.$emit('update:modelValue', this.localValue)
// #endif
// #ifndef VUE3
this.$emit('input', this.localValue)
// #endif
},
/**
* 处理返回参数
* @param {Object} files
*/
backObject(files) {
let newFilesData = []
files.forEach(v => {
newFilesData.push({
extname: v.extname,
fileType: v.fileType,
image: v.image,
name: v.name,
path: v.path,
size: v.size,
fileID:v.fileID,
url: v.url,
// 修改删除一个文件后不能再上传的bug, #694
uuid: v.uuid,
status: v.status,
cloudPath: v.cloudPath
})
})
return newFilesData
},
async getTempFileURL(fileList) {
fileList = {
fileList: [].concat(fileList)
}
const urls = await uniCloud.getTempFileURL(fileList)
return urls.fileList[0].tempFileURL || ''
},
/**
* 获取父元素实例
*/
getForm(name = 'uniForms') {
let parent = this.$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>