<!-- 文件上传，基于 upload-file 和 upload-image 实现 -->
<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>
<view v-if="subtitle" class="file-subtitle">
<view>{{ subtitle }}</view>
</view>
<upload-image
v-if="fileMediatype === 'image' && showType === 'grid'"
:readonly="readonly"
:image-styles="imageStyles"
:files-list="url"
:limit="limitLength"
:disablePreview="disablePreview"
:delIcon="delIcon"
@uploadFiles="uploadFiles"
@choose="choose"
@delFile="delFile"
>
<slot>
<view class="is-add">
<image :src="imgsrc" class="add-icon"></image>
</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';
import sheep from '@/sheep';
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 {String|Array} url url数据
* @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 {Boolean} disable-preview = [true|false] 禁用图片预览，仅 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: 'sUploader',
components: {
uploadImage,
uploadFile,
},
options: {
virtualHost: true,
},
emits: ['select', 'success', 'fail', 'progress', 'delete', 'update:modelValue', 'update:url'],
props: {
modelValue: {
type: [Array, Object],
default() {
return [];
},
},
url: {
type: [Array, String],
default() {
return [];
},
},
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,
},
sizeType: {
type: Array,
default() {
return ['original', 'compressed'];
},
},
driver: {
type: String,
default: 'local', // local=本地 | oss | unicloud
},
subtitle: {
type: String,
default: '',
},
},
data() {
return {
files: [],
localValue: [],
imgsrc: sheep.$url.static('/static/img/shop/upload-camera.png'),
};
},
watch: {
modelValue: {
handler(newVal, oldVal) {
this.setValue(newVal, oldVal);
},
immediate: true,
},
},
computed: {
returnType() {
if (this.limit > 1) {
return 'array';
}
return 'object';
},
filesList() {
let files = [];
this.files.forEach((v) => {
files.push(v);
});
return files;
},
showType() {
if (this.fileMediatype === 'image') {
return this.mode;
}
return 'list';
},
limitLength() {
if (this.returnType === 'object') {
return 1;
}
if (!this.limit) {
return 1;
}
if (this.limit >= 9) {
return 9;
}
return this.limit;
},
},
created() {
if (this.driver === 'local') {
uniCloud.chooseAndUploadFile = chooseAndUploadFile;
}
this.form = this.getForm('uniForms');
this.formItem = this.getForm('uniFormsItem');
if (this.form && this.formItem) {
if (this.formItem.name) {
this.rename = this.formItem.name;
this.form.inputChildrens.push(this);
}
}
},
methods: {
/**
* 公开用户使用，清空文件
* @param {Object} index
*/
clearFiles(index) {
if (index !== 0 && !index) {
this.files = [];
this.$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 ${this.limitLength} 个文件`,
icon: 'none',
});
return;
}
this.chooseFiles();
},
/**
* 选择文件并上传
*/
chooseFiles() {
const _extname = get_extname(this.fileExtname);
// 获取后缀
uniCloud
.chooseAndUploadFile({
type: this.fileMediatype,
compressed: false,
sizeType: this.sizeType,
// TODO 如果为空，video 有问题
extension: _extname.length > 0 ? _extname : undefined,
count: this.limitLength - this.files.length, //默认9
onChooseFile: this.chooseFileCallback,
onUploadProgress: (progressEvent) => {
this.setProgress(progressEvent, progressEvent.index);
},
})
.then((result) => {
this.setSuccessAndError(result.tempFiles);
})
.catch((err) => {
console.log('选择失败', err);
});
},
/**
* 选择文件回调
* @param {Object} res
*/
async chooseFileCallback(res) {
const _extname = get_extname(this.fileExtname);
const is_one =
(Number(this.limitLength) === 1 && this.disablePreview && !this.disabled) ||
this.returnType === 'object';
// 如果这有一个文件 ，需要清空本地缓存数据
if (is_one) {
this.files = [];
}
let { filePaths, files } = get_files_and_is_max(res, _extname);
if (!(_extname && _extname.length > 0)) {
filePaths = res.tempFilePaths;
files = res.tempFiles;
}
let currentData = [];
for (let i = 0; i < files.length; i++) {
if (this.limitLength - this.files.length <= 0) break;
files[i].uuid = Date.now();
let filedata = await get_file_data(files[i], this.fileMediatype);
filedata.progress = 0;
filedata.status = 'ready';
this.files.push(filedata);
currentData.push({
...filedata,
file: files[i],
});
}
this.$emit('select', {
tempFiles: currentData,
tempFilePaths: filePaths,
});
res.tempFiles = files;
// 停止自动上传
if (!this.autoUpload) {
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.$nextTick(() => {
this.setEmit();
});
},
/**
* 获取文件名和后缀
* @param {Object} name
*/
getFileExt(name) {
const last_len = name.lastIndexOf('.');
const len = name.length;
return {
name: name.substring(0, last_len),
ext: name.substring(last_len + 1, len),
};
},
/**
* 处理返回事件
*/
setEmit() {
let data = [];
let updateUrl = [];
if (this.returnType === 'object') {
data = this.backObject(this.files)[0];
this.localValue = data ? data : null;
updateUrl = data ? data.url : '';
} else {
data = this.backObject(this.files);
if (!this.localValue) {
this.localValue = [];
}
this.localValue = [...data];
if (this.localValue.length > 0) {
this.localValue.forEach((item) => {
updateUrl.push(item.url);
});
}
}
this.$emit('update:modelValue', this.localValue);
this.$emit('update:url', updateUrl);
},
/**
* 处理返回参数
* @param {Object} files
*/
backObject(files) {
let newFilesData = [];
files.forEach((v) => {
newFilesData.push({
extname: v.extname,
fileType: v.fileType,
image: v.image,
name: v.name,
path: v.path,
size: v.size,
fileID: v.fileID,
url: v.url,
});
});
return newFilesData;
},
async getTempFileURL(fileList) {
fileList = {
fileList: [].concat(fileList),
};
const urls = await uniCloud.getTempFileURL(fileList);
return urls.fileList[0].tempFileURL || '';
},
/**
* 获取父元素实例
*/
getForm(name = 'uniForms') {
let parent = this.$parent;
let parentName = parent.$options.name;
while (parentName !== name) {
parent = parent.$parent;
if (!parent) return false;
parentName = parent.$options.name;
}
return parent;
},
},
};
</script>
<style lang="scss" scoped>
.uni-file-picker {
/* #ifndef APP-NVUE */
box-sizing: border-box;
overflow: hidden;
/* width: 100%; */
/* #endif */
/* flex: 1; */
position: relative;
}
.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;
}
.add-icon {
width: 57rpx;
height: 49rpx;
}
.file-subtitle {
position: absolute;
left: 50%;
transform: translateX(-50%);
bottom: 0;
width: 140rpx;
height: 36rpx;
z-index: 1;
display: flex;
justify-content: center;
color: #fff;
font-weight: 500;
background: rgba(#000, 0.3);
font-size: 24rpx;
}
</style>