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+<template>
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+ <div id="global-uploader">
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+
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+ <!-- 上传 -->
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+ <uploader
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+ ref="uploader"
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+ :options="options"
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+ :autoStart="false"
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+ @file-added="onFileAdded"
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+ @file-success="onFileSuccess"
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+ @file-progress="onFileProgress"
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+ @file-error="onFileError"
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+ class="uploader-app">
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+ <uploader-unsupport></uploader-unsupport>
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+
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+ <uploader-btn id="global-uploader-btn" :attrs="attrs" ref="uploadBtn">选择文件</uploader-btn>
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+
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+ <uploader-list v-show="panelShow">
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+ <div class="file-panel" slot-scope="props" :class="{'collapse': collapse}">
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+ <div class="file-title">
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+ <h2>文件列表</h2>
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+ <div class="operate">
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+ <el-button @click="fileListShow" style="color:#999;" type="text" :title="collapse ? '展开':'折叠' ">
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+ <i class="iconfont" :class="collapse ? 'icon-shenglvehao': 'icon-shenglvehao'"></i>
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+ </el-button>
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+ <el-button @click="close" style="color:#999;" type="text" title="关闭">
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+ <i class="iconfont icon-guanbi"></i>
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+ </el-button>
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+ </div>
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+ </div>
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+
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+ <ul class="file-list" v-show="collapse">
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+ <el-scrollbar style="height:100%;">
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+ <li v-for="file in props.fileList" :key="file.id">
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+ <uploader-file :class="'file_' + file.id" ref="files" :file="file" :list="true"></uploader-file>
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+ </li>
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+ <div class="no-file" v-if="!props.fileList.length"><i class="iconfont icon-wushuju"></i> 暂无待上传文件</div>
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+ </el-scrollbar>
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+ </ul>
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+ </div>
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+ </uploader-list>
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+
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+ </uploader>
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+
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+ </div>
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+</template>
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+
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+<script>
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+/**
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+ * 全局上传插件
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+ * 调用方法:Bus.$emit('openUploader', {}) 打开文件选择框,参数为需要传递的额外参数
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+ * 监听函数:Bus.$on('fileAdded', fn); 文件选择后的回调
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+ * Bus.$on('fileSuccess', fn); 文件上传成功的回调
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+ */
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+
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+// import {ACCEPT_CONFIG} from './js/config';
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+import Bus from '@/utils/bus.js'
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+import SparkMD5 from 'spark-md5';
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+
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+// 这两个是我自己项目中用的,请忽略
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+// import {Ticket} from '@/assets/js/utils';
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+// import api from '@/api';
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+
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+export default {
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+ data() {
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+ return {
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+ options: {
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+ target: '',
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+ chunkSize: 2*1024*1024,
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+ fileParameterName: 'upfile',
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+ maxChunkRetries: 3,
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+ testChunks: false, //是否开启服务器分片校验
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+ // 服务器分片校验函数,秒传及断点续传基础
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+ // checkChunkUploadedByResponse: function (chunk, message) {
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+ // let objMessage = JSON.parse(message);
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+ // if (objMessage.skipUpload) {
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+ // return true;
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+ // }
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+
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+ // return (objMessage.uploaded || []).indexOf(chunk.offset + 1) >= 0
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+ // },
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+ // headers: {
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+ // Authorization: Ticket.get() && "Bearer " + Ticket.get().access_token
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+ // },
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+ query() {}
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+ },
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+ attrs: {
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+ // accept: ACCEPT_CONFIG.getAll()
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+ },
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+ panelShow: false, //选择文件后,展示上传panel
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+ collapse: false,
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+ }
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+ },
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+ mounted() {
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+ Bus.$on('openUploader', query => {
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+ this.params = query || {};
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+
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+ if (this.$refs.uploadBtn) {
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+ document.getElementById('global-uploader-btn').click();
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+ // $('#global-uploader-btn').click();
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+ }
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+ });
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+ },
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+ computed: {
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+ //Uploader实例
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+ uploader() {
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+ return this.$refs.uploader.uploader;
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+ }
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+ },
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+ methods: {
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+ onFileAdded(file) {
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+ this.panelShow = true;
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+ this.computeMD5(file);
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+
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+ Bus.$emit('fileAdded');
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+ },
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+ onFileProgress(rootFile, file, chunk) {
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+ console.log(`上传中 ${file.name},chunk:${chunk.startByte / 1024 / 1024} ~ ${chunk.endByte / 1024 / 1024}`)
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+ },
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+ onFileSuccess(rootFile, file, response, chunk) {
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+ let res = JSON.parse(response);
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+
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+ // 服务器自定义的错误(即虽返回200,但是是错误的情况),这种错误是Uploader无法拦截的
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+ if (!res.result) {
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+ this.$message({ message: res.message, type: 'error' });
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+ // 文件状态设为“失败”
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+ this.statusSet(file.id, 'failed');
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+ return
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+ }
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+
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+ // 如果服务端返回需要合并
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+ if (res.needMerge) {
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+ // 文件状态设为“合并中”
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+ this.statusSet(file.id, 'merging');
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+
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+ api.mergeSimpleUpload({
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+ tempName: res.tempName,
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+ fileName: file.name,
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+ ...this.params,
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+ }).then(res => {
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+ // 文件合并成功
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+ Bus.$emit('fileSuccess');
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+
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+ this.statusRemove(file.id);
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+ }).catch(e => {});
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+
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+ // 不需要合并
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+ } else {
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+ Bus.$emit('fileSuccess');
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+ console.log('上传成功');
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+ }
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+ },
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+ onFileError(rootFile, file, response, chunk) {
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+ this.$message({
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+ message: response,
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+ type: 'error'
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+ })
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+ },
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+
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+ /**
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+ * 计算md5,实现断点续传及秒传
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+ * @param file
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+ */
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+ computeMD5(file) {
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+ let fileReader = new FileReader();
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+ let time = new Date().getTime();
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+ let blobSlice = File.prototype.slice || File.prototype.mozSlice || File.prototype.webkitSlice;
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+ let currentChunk = 0;
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+ const chunkSize = 2 * 1024 * 1024;
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+ let chunks = Math.ceil(file.size / chunkSize);
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+ let spark = new SparkMD5.ArrayBuffer();
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+
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+ // 文件状态设为"计算MD5"
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+ this.statusSet(file.id, 'md5');
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+ file.pause();
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+
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+ loadNext();
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+
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+ fileReader.onload = (e => {
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+ spark.append(e.target.result);
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+
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+ if (currentChunk < chunks) {
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+ currentChunk++;
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+ loadNext();
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+
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+ // 实时展示MD5的计算进度
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+ this.$nextTick(() => {
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+ document.getElementsByClassName(`myStatus_${file.id}`)[0].innerText = '校验MD5 '+ ((currentChunk/chunks)*100).toFixed(0)+'%'
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+ // $(`.myStatus_${file.id}`).text('校验MD5 '+ ((currentChunk/chunks)*100).toFixed(0)+'%')
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+ })
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+ } else {
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+ let md5 = spark.end();
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+ this.computeMD5Success(md5, file);
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+ console.log(`MD5计算完毕:${file.name} \nMD5:${md5} \n分片:${chunks} 大小:${file.size} 用时:${new Date().getTime() - time} ms`);
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+ }
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+ });
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+
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+ fileReader.onerror = function () {
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+ this.error(`文件${file.name}读取出错,请检查该文件`)
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+ file.cancel();
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+ };
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+
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+ function loadNext() {
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+ let start = currentChunk * chunkSize;
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+ let end = ((start + chunkSize) >= file.size) ? file.size : start + chunkSize;
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+
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+ fileReader.readAsArrayBuffer(blobSlice.call(file.file, start, end));
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+ }
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+ },
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+
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+ computeMD5Success(md5, file) {
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+ // 将自定义参数直接加载uploader实例的opts上
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+ Object.assign(this.uploader.opts, {
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+ query: {
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+ ...this.params,
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+ }
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+ })
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+
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+ file.uniqueIdentifier = md5;
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+ file.resume();
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+ this.statusRemove(file.id);
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+ },
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+
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+ fileListShow() {
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+ this.collapse = this.collapse? false: true;
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+
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+ // let $list = $('#global-uploader .file-list');
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+ // let $list = document.querySelector('#global-uploader .file-list')
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+
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+ // if ($list.style.display == '' && $list.style.display == 'none') {
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+ // $list.style.display == 'block';//显示
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+ // this.collapse = false;
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+ // // $list.slideUp();//隐藏
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+ // // this.collapse = true;
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+ // } else {
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+ // $list.style.display == 'none';//隐藏
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+ // this.collapse = true;
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+ // // $list.slideDown();//显示
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+ // // this.collapse = false;
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+ // }
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+ },
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+ close() {
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+ this.uploader.cancel();
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+
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+ this.panelShow = false;
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+ },
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+
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+ /**
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+ * 新增的自定义的状态: 'md5'、'transcoding'、'failed'
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+ * @param id
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+ * @param status
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+ */
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+ statusSet(id, status) {
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+ let statusMap = {
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+ md5: {
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+ text: '校验MD5',
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+ bgc: '#fff'
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+ },
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+ merging: {
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+ text: '合并中',
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+ bgc: '#e2eeff'
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+ },
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+ transcoding: {
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+ text: '转码中',
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+ bgc: '#e2eeff'
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+ },
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+ failed: {
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+ text: '上传失败',
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+ bgc: '#e2eeff'
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+ }
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+ }
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+
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+ this.$nextTick(() => {
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+ let node = document.createElement("P");
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+ let att = document.createAttribute("class");
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+ att.value = `status_style myStatus_${id}`;
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+ let text = document.createTextNode(`${statusMap[status].text}`);
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+ node.appendChild(text);
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+ node.setAttributeNode(att);
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+ node.style.backgroundColor = `${statusMap[status].bgc}`
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+ document.querySelector(`.file_${id} .uploader-file-status`).appendChild(node);
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+
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+ // $(`<p class="myStatus_${id}"></p>`).appendTo(`.file_${id} .uploader-file-status`).css({
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+ // 'position': 'absolute',
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+ // 'top': '0',
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+ // 'left': '0',
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+ // 'right': '0',
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+ // 'bottom': '0',
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+ // 'zIndex': '1',
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+ // 'backgroundColor': statusMap[status].bgc
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+ // }).text(statusMap[status].text);
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+ })
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+ },
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+ statusRemove(id) {
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+ this.$nextTick(() => {
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+ let dom = document.getElementsByClassName(`myStatus_${id}`)[0];
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+ dom.parentNode.removeChild(dom);
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+ })
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+ },
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+
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+ error(msg) {
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+ this.$notify({
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+ title: '错误',
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+ message: msg,
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+ type: 'error',
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+ duration: 2000
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+ })
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+ }
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+ },
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+ watch: {},
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+ destroyed() {
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+ Bus.$off('openUploader');
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+ },
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+ components: {}
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+}
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+</script>
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+
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+<style scoped lang="scss">
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+#global-uploader {
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+ position: fixed;
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+ z-index: 20;
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+ top: auto;
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+ right: 15px;
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+ bottom: 0;
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+
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+ .uploader-app {
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+ width: 633px;
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+ }
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+
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+ .file-panel {
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+ background-color: #fff;
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+ border: 1px solid #e2e2e2;
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+ border-radius: 7px 7px 0 0;
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+ box-shadow: 0 0 10px rgba(0, 0, 0, .2);
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+
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+ .file-title {
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+ display: flex;
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+ height: 40px;
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+ line-height: 40px;
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+ padding: 0 15px;
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+ border-bottom: 1px solid #ddd;
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+ h2{
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+ font-size: 14px;
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+ font-style: normal;
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+ cursor: text;
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+ font-weight: 200;
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+ color: #666;
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+ }
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+
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+ .operate {
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+ flex: 1;
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+ text-align: right;
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+ }
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+ }
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+
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+ .file-list {
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+ position: relative;
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+ height: 350px;
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+ overflow-x: hidden;
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+ overflow-y: auto;
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+ background-color: #fff;
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+ /deep/ .el-scrollbar__wrap{
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+ overflow-x: hidden;
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+ }
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+
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+ > li {
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+ background-color: #fff;
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+ }
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+ /deep/ .status_style{
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+ position: absolute;
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+ top: 0;
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+ left: 0;
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+ right: 0;
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+ bottom: 0;
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+ z-index: 1;
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+ }
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+ }
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+
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+ // &.collapse {
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+ // .file-title {
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+ // background-color: #E7ECF2;
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+ // }
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+ // }
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+ }
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+
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+ .no-file {
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+ position: absolute;
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+ top: 50%;
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+ left: 50%;
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+ transform: translate(-50%, -50%);
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+ font-size: 16px;
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+ text-align: center;
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+ }
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+
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+ /deep/.uploader-file-icon {
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+ &:before {
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+ content: '' !important;
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+ }
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+
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+ &[icon=image] {
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+ // background: url(./images/image-icon.png);
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+ }
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+ &[icon=video] {
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+ // background: url(./images/video-icon.png);
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+ }
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+ &[icon=document] {
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+ // background: url(./images/text-icon.png);
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+ }
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+ }
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+
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+ /deep/ .uploader-file-actions > span {
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+ margin-right: 6px;
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+ }
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+}
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+/* 隐藏上传按钮 */
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+#global-uploader-btn {
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+ position: absolute;
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+ clip: rect(0, 0, 0, 0);
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+}
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+</style>
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