<template>
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<div class="sc-upload-multiple">
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<el-upload ref="uploader" list-type="picture-card"
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:auto-upload="autoUpload"
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:disabled="disabled"
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:action="action"
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:name="name"
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:data="data"
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:http-request="request"
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v-model:file-list="defaultFileList"
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:show-file-list="showFileList"
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:accept="accept"
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:multiple="multiple"
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:limit="limit"
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:before-upload="before"
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:on-success="success"
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:on-error="error"
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:on-preview="handlePreview"
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:on-exceed="handleExceed">
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<slot>
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<el-icon><el-icon-plus/></el-icon>
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</slot>
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<template #tip>
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<div v-if="tip" class="el-upload__tip">{{tip}}</div>
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</template>
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<template #file="{ file }">
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<div class="sc-upload-list-item">
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<el-image class="el-upload-list__item-thumbnail" :src="file.url" fit="cover" :preview-src-list="preview" :initial-index="preview.findIndex(n=>n==file.url)" hide-on-click-modal append-to-body :z-index="9999">
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<template #placeholder>
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<div class="sc-upload-multiple-image-slot">
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Loading...
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</div>
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</template>
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</el-image>
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<div v-if="!disabled && file.status=='success'" class="sc-upload__item-actions">
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<span class="del" @click="handleRemove(file)"><el-icon><el-icon-delete /></el-icon></span>
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</div>
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<div v-if="file.status=='ready' || file.status=='uploading'" class="sc-upload__item-progress">
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<el-progress :percentage="file.percentage" :text-inside="true" :stroke-width="16"/>
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</div>
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</div>
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</template>
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</el-upload>
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<span style="display:none!important"><el-input v-model="value"></el-input></span>
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</div>
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</template>
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<script>
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import config from "@/config/upload"
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import Sortable from 'sortablejs'
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export default {
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props: {
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modelValue: { type: [String, Array], default: "" },
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tip: { type: String, default: "" },
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action: { type: String, default: "" },
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apiObj: { type: Object, default: () => {} },
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name: { type: String, default: config.filename },
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data: { type: Object, default: () => {} },
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accept: { type: String, default: "image/gif, image/jpeg, image/png" },
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maxSize: { type: Number, default: config.maxSizeFile },
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limit: { type: Number, default: 0 },
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autoUpload: { type: Boolean, default: true },
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showFileList: { type: Boolean, default: true },
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multiple: { type: Boolean, default: true },
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disabled: { type: Boolean, default: false },
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draggable: { type: Boolean, default: false },
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onSuccess: { type: Function, default: () => { return true } }
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},
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data(){
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return {
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value: "",
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defaultFileList: []
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}
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},
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watch:{
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modelValue(val){
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if(Array.isArray(val)){
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if (JSON.stringify(val) != JSON.stringify(this.formatArr(this.defaultFileList))) {
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this.defaultFileList = val
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this.value = val
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}
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}else{
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if (val != this.toStr(this.defaultFileList)) {
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this.defaultFileList = this.toArr(val)
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this.value = val
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}
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}
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},
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defaultFileList: {
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handler(val){
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this.$emit('update:modelValue', Array.isArray(this.modelValue) ? this.formatArr(val) : this.toStr(val))
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this.value = this.toStr(val)
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},
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deep: true
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}
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},
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computed: {
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preview(){
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return this.defaultFileList.map(v => v.url)
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}
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},
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mounted() {
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this.defaultFileList = Array.isArray(this.modelValue) ? this.modelValue : this.toArr(this.modelValue)
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this.value = this.modelValue
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if(!this.disabled && this.draggable){
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this.rowDrop()
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}
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},
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methods: {
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//默认值转换为数组
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toArr(str){
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var _arr = [];
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var arr = str.split(",");
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arr.forEach(item => {
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if(item){
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var urlArr = item.split('/');
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var fileName = urlArr[urlArr.length - 1]
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_arr.push({
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name: fileName,
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url: item
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})
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}
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})
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return _arr;
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},
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//数组转换为原始值
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toStr(arr){
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return arr.map(v => v.url).join(",")
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},
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//格式化数组值
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formatArr(arr){
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var _arr = []
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arr.forEach(item => {
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if(item){
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_arr.push({
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name: item.name,
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url: item.url
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})
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}
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})
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return _arr
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},
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//拖拽
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rowDrop(){
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const _this = this
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const itemBox = this.$refs.uploader.$el.querySelector('.el-upload-list')
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Sortable.create(itemBox, {
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handle: ".el-upload-list__item",
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animation: 200,
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ghostClass: "ghost",
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onEnd({ newIndex, oldIndex }) {
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const tableData = _this.defaultFileList
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const currRow = tableData.splice(oldIndex, 1)[0]
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tableData.splice(newIndex, 0, currRow)
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}
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})
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},
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before(file){
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if(!['image/jpeg','image/png','image/gif'].includes(file.type)){
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this.$message.warning(`选择的文件类型 ${file.type} 非图像类文件`);
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return false;
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}
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const maxSize = file.size / 1024 / 1024 < this.maxSize;
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if (!maxSize) {
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this.$message.warning(`上传文件大小不能超过 ${this.maxSize}MB!`);
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return false;
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}
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},
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success(res, file){
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var os = this.onSuccess(res, file)
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if(os!=undefined && os==false){
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return false
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}
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var response = config.parseData(res)
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file.name = response.fileName
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file.url = response.src
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},
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error(err){
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this.$notify.error({
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title: '上传文件未成功',
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message: err
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})
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},
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beforeRemove(uploadFile){
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return this.$confirm(`是否移除 ${uploadFile.name} ?`, '提示', {
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type: 'warning',
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}).then(() => {
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return true
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}).catch(() => {
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return false
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})
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},
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handleRemove(file){
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this.$refs.uploader.handleRemove(file)
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//this.defaultFileList.splice(this.defaultFileList.findIndex(item => item.uid===file.uid), 1)
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},
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handleExceed(){
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this.$message.warning(`当前设置最多上传 ${this.limit} 个文件，请移除后上传!`)
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},
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handlePreview(uploadFile){
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window.open(uploadFile.url)
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},
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request(param){
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var apiObj = config.apiObj;
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if(this.apiObj){
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apiObj = this.apiObj;
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}
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const data = new FormData();
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data.append(param.filename, param.file);
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for (const key in param.data) {
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data.append(key, param.data[key]);
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}
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apiObj.post(data, {
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onUploadProgress: e => {
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const complete = parseInt(((e.loaded / e.total) * 100) | 0, 10)
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param.onProgress({percent: complete})
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}
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}).then(res => {
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var response = config.parseData(res);
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if(response.code == config.successCode){
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param.onSuccess(res)
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}else{
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param.onError(response.msg || "未知错误")
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}
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}).catch(err => {
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param.onError(err)
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})
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}
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}
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}
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</script>
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<style scoped>
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.el-form-item.is-error .sc-upload-multiple:deep(.el-upload--picture-card) {border-color: var(--el-color-danger);}
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:deep(.el-upload-list__item) {transition:none;border-radius: 0;}
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.sc-upload-multiple:deep(.el-upload-list__item.el-list-leave-active) {position: static!important;}
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.sc-upload-multiple:deep(.el-upload--picture-card) {border-radius: 0;}
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.sc-upload-list-item {width: 100%;height: 100%;position: relative;}
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.sc-upload-multiple .el-image {display: block;}
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.sc-upload-multiple .el-image:deep(img) {-webkit-user-drag: none;}
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.sc-upload-multiple-image-slot {display: flex;justify-content: center;align-items: center;width: 100%;height: 100%;font-size: 12px;}
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.sc-upload-multiple .el-upload-list__item:hover .sc-upload__item-actions{display: block;}
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.sc-upload__item-actions {position: absolute;top:0;right: 0;display: none;}
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.sc-upload__item-actions span {display: flex;justify-content: center;align-items: center;;width: 25px;height:25px;cursor: pointer;color: #fff;}
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.sc-upload__item-actions span i {font-size: 12px;}
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.sc-upload__item-actions .del {background: #F56C6C;}
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.sc-upload__item-progress {position: absolute;width: 100%;height: 100%;top: 0;left: 0;background-color: var(--el-overlay-color-lighter);}
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</style>
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