570 lines
20 KiB
Vue
570 lines
20 KiB
Vue
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<template>
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<view class="u-upload" v-if="!disabled" :class="customClass" :style="$u.toStyle(customStyle)">
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<view
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v-if="showUploadList"
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class="u-list-item u-preview-wrap"
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v-for="(item, index) in lists"
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:key="index"
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:style="{
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width: $u.addUnit(width),
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height: $u.addUnit(height)
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}"
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>
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<view
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v-if="deletable"
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class="u-delete-icon"
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@tap.stop="deleteItem(index)"
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:style="{
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background: delBgColor
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}"
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>
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<u-icon :name="delIcon" size="20" :color="delColor"></u-icon>
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</view>
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<view class="u-upload-progress">
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<u-line-progress
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v-if="showProgress && item.progress > 0 && item.progress != 100 && !item.error"
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:show-percent="false"
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height="16"
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:percent="item.progress"
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></u-line-progress>
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</view>
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<view @tap.stop="retry(index)" v-if="item.error" class="u-error-btn">点击重试</view>
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<image
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@tap.stop="doPreviewImage(item.url || item.path, index)"
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class="u-preview-image"
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v-if="!item.isImage"
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:src="item.url || item.path"
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:mode="imageMode"
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></image>
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</view>
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<slot name="file" :file="lists"></slot>
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<view style="display: inline-block" @tap="selectFile" v-if="Number(maxCount) > lists.length">
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<slot name="addBtn"></slot>
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<view
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v-if="!customBtn"
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class="u-list-item u-add-wrap"
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hover-class="u-add-wrap__hover"
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hover-stay-time="150"
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:style="{
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width: $u.addUnit(width),
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height: $u.addUnit(height)
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}"
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>
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<u-icon name="plus" class="u-add-btn" size="40"></u-icon>
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<view class="u-add-tips">{{ uploadText }}</view>
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</view>
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</view>
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</view>
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</template>
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<script lang="ts">
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export default {
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name: 'u-upload',
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options: {
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addGlobalClass: true,
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// #ifndef MP-TOUTIAO
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virtualHost: true,
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// #endif
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styleIsolation: 'shared'
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}
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};
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</script>
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<script setup lang="ts">
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import { ref, watch } from 'vue';
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import { $u, useLocale } from '../..';
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import { UploadProps } from './types';
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/**
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* upload 图片上传
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* @description 该组件用于上传图片场景
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* @tutorial https://uviewpro.cn/zh/components/upload.html
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* @property {String} action 服务器上传地址
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* @property {String Number} max-count 最大选择图片的数量（默认99）
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* @property {Boolean} custom-btn 如果需要自定义选择图片的按钮，设置为true（默认false）
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* @property {Boolean} show-progress 是否显示进度条（默认true）
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* @property {Boolean} disabled 是否启用(显示/移仓)组件（默认false）
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* @property {String} image-mode 预览图片等显示模式，可选值为uni的image的mode属性值（默认aspectFill）
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* @property {String} del-icon 右上角删除图标名称，只能为uView内置图标
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* @property {String} del-bg-color 右上角关闭按钮的背景颜色
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* @property {String | Number} index 在各个回调事件中的最后一个参数返回，用于区别是哪一个组件的事件
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* @property {String} del-color 右上角关闭按钮图标的颜色
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* @property {Object} header 上传携带的头信息，对象形式
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* @property {Object} form-data 上传额外携带的参数
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* @property {String} name 上传文件的字段名，供后端获取使用（默认file）
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* @property {Array<String>} size-type original 原图，compressed 压缩图，默认二者都有（默认['original', 'compressed']）
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* @property {Array<String>} source-type 选择图片的来源，album-从相册选图，camera-使用相机，默认二者都有（默认['album', 'camera']）
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* @property {Boolean} preview-full-image 是否可以通过uni.previewImage预览已选择的图片（默认true）
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* @property {Boolean} multiple 是否开启图片多选，部分安卓机型不支持（默认true）
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* @property {Boolean} deletable 是否显示删除图片的按钮（默认true）
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* @property {String Number} max-size 选择单个文件的最大大小，单位B(byte)，默认不限制（默认Number.MAX_VALUE）
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* @property {Array<Object>} file-list 默认显示的图片列表，数组元素为对象，必须提供url属性
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* @property {Boolean} upload-text 选择图片按钮的提示文字（默认“选择图片”）
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* @property {Boolean} auto-upload 选择完图片是否自动上传，见上方说明（默认true）
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* @property {Boolean} show-tips 特殊情况下是否自动提示toast，见上方说明（默认true）
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* @property {Boolean} show-upload-list 是否显示组件内部的图片预览（默认true）
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* @event {Function} on-oversize 图片大小超出最大允许大小
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* @event {Function} on-preview 全屏预览图片时触发
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* @event {Function} on-remove 移除图片时触发
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* @event {Function} on-success 图片上传成功时触发
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* @event {Function} on-change 图片上传后，无论成功或者失败都会触发
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* @event {Function} on-error 图片上传失败时触发
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* @event {Function} on-progress 图片上传过程中的进度变化过程触发
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* @event {Function} on-uploaded 所有图片上传完毕触发
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* @event {Function} on-choose-complete 每次选择图片后触发，只是让外部可以得知每次选择后，内部的文件列表
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* @event {Function} on-choose-fail 文件选择失败时触发
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* @event {Function} on-list-change 文件列表发生变化时触发
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* @example <u-upload :action="action" :file-list="fileList" ></u-upload>
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*/
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const props = defineProps(UploadProps);
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const { t } = useLocale();
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const emit = defineEmits([
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'on-list-change',
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'on-oversize',
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'on-exceed',
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'on-choose-complete',
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'on-choose-fail',
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'on-uploaded',
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'on-success',
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'on-error',
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'on-change',
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'on-progress',
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'on-remove',
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'on-preview'
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]);
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const lists = ref<any[]>([]);
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const uploading = ref(false);
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// 监听 fileList 变化，自动同步内部 lists
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watch(
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() => props.fileList,
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val => {
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val.map((value: any) => {
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// 首先检查内部是否已经添加过这张图片，因为外部绑定了一个对象给fileList的话(对象引用)，进行修改外部fileList
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// 时，会触发watch，导致重新把原来的图片再次添加到this.lists
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// 数组的some方法意思是，只要数组元素有任意一个元素条件符合，就返回true，而另一个数组的every方法的意思是数组所有元素都符合条件才返回true
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let tmp = lists.value.some(val2 => val2.url == value.url);
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// 如果内部没有这个图片(tmp为false)，则添加到内部
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!tmp && lists.value.push({ ...value, url: value.url, error: false, progress: 100 });
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});
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},
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{ immediate: true, deep: true }
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);
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// 监听 lists 变化，发出事件
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watch(
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lists,
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n => {
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emit('on-list-change', n, props.index);
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},
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{ deep: true }
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);
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/**
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* 清除列表
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*/
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function clear() {
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lists.value = [];
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}
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/**
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* 重新上传队列中上传失败的所有文件
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*/
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function reUpload() {
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uploadFile();
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}
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/**
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* 选择图片
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*/
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function selectFile() {
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if (props.disabled) return;
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const newMaxCount = Number(props.maxCount) - lists.value.length;
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// 设置为只选择图片的时候使用 chooseImage 来实现
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let chooseFile: Promise<any>;
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chooseFile = new Promise((resolve, reject) => {
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uni.chooseImage({
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count: props.multiple ? (newMaxCount > 9 ? 9 : newMaxCount) : 1,
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sourceType: props.sourceType as string[],
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sizeType: props.sizeType as string[],
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success: resolve,
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fail: reject
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});
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});
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chooseFile
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.then((res: any) => {
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let listOldLength = lists.value.length;
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res.tempFiles.map((val: any, index: number) => {
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// 检查文件后缀是否允许，如果不在limitType内，就会返回false
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if (!checkFileExt(val)) return;
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// 如果是非多选，index大于等于1或者超出最大限制数量时，不处理
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if (!props.multiple && index >= 1) return;
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if (val.size > Number(props.maxSize)) {
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emit('on-oversize', val, lists.value, props.index);
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showToast(t('uUpload.overSize'));
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} else {
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if (Number(props.maxCount) <= lists.value.length) {
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emit('on-exceed', val, lists.value, props.index);
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showToast(t('uUpload.overMaxCount'));
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return;
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}
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lists.value.push({ url: val.path, progress: 0, error: false, file: val });
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}
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});
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// 每次图片选择完，抛出一个事件，并将当前内部选择的图片数组抛出去
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emit('on-choose-complete', lists.value, props.index);
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if (props.autoUpload) uploadFile(listOldLength);
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})
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.catch((error: any) => {
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emit('on-choose-fail', error);
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});
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}
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/**
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* 提示用户消息
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*/
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function showToast(message: string, force = false) {
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if (props.showTips || force) {
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uni.showToast({ title: message, icon: 'none' });
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}
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}
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/**
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* 该方法供用户通过ref调用，手动上传
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*/
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function upload() {
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uploadFile();
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}
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/**
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* 对失败的图片重新上传
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*/
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function retry(index: number) {
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lists.value[index].progress = 0;
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lists.value[index].error = false;
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lists.value[index].response = null;
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if (props.showTips) {
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uni.showLoading({ title: t('uUpload.reUpload') });
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}
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uploadFile(index);
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}
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/**
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* 上传图片
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*/
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async function uploadFile(index = 0): Promise<void> {
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if (props.disabled) return;
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if (uploading.value) return;
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// 全部上传完成
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if (index >= lists.value.length) {
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emit('on-uploaded', lists.value, props.index);
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return;
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}
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// 检查是否是已上传或者正在上传中
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if (lists.value[index].progress == 100) {
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if (props.autoUpload == false) uploadFile(index + 1);
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return;
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}
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// 执行before-upload钩子
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if (props.beforeUpload && typeof props.beforeUpload === 'function') {
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// 执行回调，同时传入索引和文件列表当作参数
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// 在微信，支付宝等环境(H5正常)，会导致父组件定义的customBack()函数体中的this变成子组件的this
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// 通过bind()方法，绑定父组件的this，让this.customBack()的this为父组件的上下文
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// 因为upload组件可能会被嵌套在其他组件内，比如u-form，这时this.$parent其实为u-form的this，
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// 非页面的this，所以这里需要往上历遍，一直寻找到最顶端的$parent，这里用了this.$u.$parent.call(this)
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// 明白意思即可，无需纠结this.$u.$parent.call(this)的细节
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let beforeResponse = props.beforeUpload(index, lists.value);
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// 判断是否返回了promise
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if (
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typeof beforeResponse === 'object' &&
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beforeResponse !== null &&
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typeof (beforeResponse as Promise<any>).then === 'function'
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) {
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await (beforeResponse as Promise<any>)
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.then(() => {
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// promise返回成功，不进行动作，继续上传
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})
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.catch(() => {
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// 进入catch回调的话，继续下一张
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return uploadFile(index + 1);
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});
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} else if (beforeResponse === false) {
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// 如果返回false，继续下一张图片的上传
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return uploadFile(index + 1);
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} else {
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// 此处为返回"true"的情形，这里不写代码，就跳过此处，继续执行当前的上传逻辑
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}
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}
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// 检查上传地址
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if (!props.action) {
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|
|
showToast(t('uUpload.noAction'), true);
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
lists.value[index].error = false;
|
|||
|
|
uploading.value = true;
|
|||
|
|
// 创建上传对象
|
|||
|
|
const task = uni.uploadFile({
|
|||
|
|
url: props.action,
|
|||
|
|
filePath: lists.value[index].url,
|
|||
|
|
name: props.name,
|
|||
|
|
formData: props.formData,
|
|||
|
|
header: props.header,
|
|||
|
|
// #ifdef MP-ALIPAY
|
|||
|
|
fileType: 'image',
|
|||
|
|
// #endif
|
|||
|
|
success: (res: any) => {
|
|||
|
|
// 判断是否json字符串，将其转为json格式
|
|||
|
|
let data = props.toJson && $u.test.jsonString(res.data) ? JSON.parse(res.data) : res.data;
|
|||
|
|
if (![200, 201, 204].includes(res.statusCode)) {
|
|||
|
|
uploadError(index, data);
|
|||
|
|
} else {
|
|||
|
|
// 上传成功
|
|||
|
|
lists.value[index].response = data;
|
|||
|
|
lists.value[index].progress = 100;
|
|||
|
|
lists.value[index].error = false;
|
|||
|
|
emit('on-success', data, index, lists.value, props.index);
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
fail: (e: any) => {
|
|||
|
|
uploadError(index, e);
|
|||
|
|
},
|
|||
|
|
complete: (res: any) => {
|
|||
|
|
uni.hideLoading();
|
|||
|
|
uploading.value = false;
|
|||
|
|
uploadFile(index + 1);
|
|||
|
|
emit('on-change', res, index, lists.value, props.index);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
task.onProgressUpdate((res: any) => {
|
|||
|
|
if (res.progress > 0) {
|
|||
|
|
lists.value[index].progress = res.progress;
|
|||
|
|
emit('on-progress', res, index, lists.value, props.index);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 上传失败
|
|||
|
|
*/
|
|||
|
|
function uploadError(index: number, err: any) {
|
|||
|
|
lists.value[index].progress = 0;
|
|||
|
|
lists.value[index].error = true;
|
|||
|
|
lists.value[index].response = null;
|
|||
|
|
emit('on-error', err, index, lists.value, props.index);
|
|||
|
|
showToast(t('uUpload.uploadFailed'));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 删除一个图片
|
|||
|
|
*/
|
|||
|
|
function deleteItem(index: number) {
|
|||
|
|
uni.showModal({
|
|||
|
|
title: t('uUpload.modalTitle'),
|
|||
|
|
content: t('uUpload.deleteConfirm'),
|
|||
|
|
cancelText: t('uUpload.modalCancelText'),
|
|||
|
|
confirmText: t('uUpload.modalConfirmText'),
|
|||
|
|
success: async (res: any) => {
|
|||
|
|
if (res.confirm) {
|
|||
|
|
// 先检查是否有定义before-remove移除前钩子
|
|||
|
|
// 执行before-remove钩子
|
|||
|
|
if (props.beforeRemove && typeof props.beforeRemove === 'function') {
|
|||
|
|
// 此处钩子执行 原理同before-remove参数，见上方注释
|
|||
|
|
let beforeResponse = props.beforeRemove(index, lists.value);
|
|||
|
|
// 判断是否返回了promise
|
|||
|
|
if (
|
|||
|
|
typeof beforeResponse === 'object' &&
|
|||
|
|
beforeResponse !== null &&
|
|||
|
|
typeof (beforeResponse as Promise<any>).then === 'function'
|
|||
|
|
) {
|
|||
|
|
await (beforeResponse as Promise<any>)
|
|||
|
|
.then(() => {
|
|||
|
|
// promise返回成功，不进行动作，继续上传
|
|||
|
|
handlerDeleteItem(index);
|
|||
|
|
})
|
|||
|
|
.catch(() => {
|
|||
|
|
// 如果进入promise的reject，终止删除操作
|
|||
|
|
showToast(t('uUpload.terminatedRemove'));
|
|||
|
|
});
|
|||
|
|
} else if (beforeResponse === false) {
|
|||
|
|
// 返回false，终止删除
|
|||
|
|
showToast(t('uUpload.terminatedRemove'));
|
|||
|
|
} else {
|
|||
|
|
// 如果返回true，执行删除操作
|
|||
|
|
handlerDeleteItem(index);
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
// 如果不存在before-remove钩子，
|
|||
|
|
handlerDeleteItem(index);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 执行移除图片的动作
|
|||
|
|
*/
|
|||
|
|
function handlerDeleteItem(index: number) {
|
|||
|
|
// 如果文件正在上传中，终止上传任务，进度在0 < progress < 100则意味着正在上传
|
|||
|
|
if (lists.value[index].progress < 100 && lists.value[index].progress > 0) {
|
|||
|
|
typeof lists.value[index].uploadTask != 'undefined' && lists.value[index].uploadTask.abort();
|
|||
|
|
}
|
|||
|
|
lists.value.splice(index, 1);
|
|||
|
|
emit('on-remove', index, lists.value, props.index);
|
|||
|
|
showToast(t('uUpload.removeSuccess'));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 用户通过ref手动的形式，移除一张图片
|
|||
|
|
*/
|
|||
|
|
function remove(index: number) {
|
|||
|
|
// 判断索引的合法范围
|
|||
|
|
if (index >= 0 && index < lists.value.length) {
|
|||
|
|
lists.value.splice(index, 1);
|
|||
|
|
emit('on-list-change', lists.value, props.index);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 预览图片
|
|||
|
|
*/
|
|||
|
|
function doPreviewImage(url: string, index: number) {
|
|||
|
|
// 判断是否允许预览
|
|||
|
|
if (!props.previewFullImage) return;
|
|||
|
|
// 获取所有图片的url
|
|||
|
|
const images = lists.value.map(item => item.url || item.path);
|
|||
|
|
uni.previewImage({
|
|||
|
|
urls: images,
|
|||
|
|
current: url,
|
|||
|
|
success: () => {
|
|||
|
|
emit('on-preview', url, lists.value, props.index);
|
|||
|
|
},
|
|||
|
|
fail: () => {
|
|||
|
|
uni.showToast({ title: t('uUpload.previewFailed'), icon: 'none' });
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 判断文件后缀是否允许
|
|||
|
|
*/
|
|||
|
|
function checkFileExt(file: any) {
|
|||
|
|
// 检查是否在允许的后缀中
|
|||
|
|
let noArrowExt = false;
|
|||
|
|
// 获取后缀名
|
|||
|
|
let fileExt = '';
|
|||
|
|
const reg = /.+\./;
|
|||
|
|
// 如果是H5，需要从name中判断
|
|||
|
|
// #ifdef H5
|
|||
|
|
// H5环境下从name中获取后缀
|
|||
|
|
fileExt = file.name.replace(reg, '').toLowerCase();
|
|||
|
|
// #endif
|
|||
|
|
|
|||
|
|
// 非H5环境下从path中获取后缀
|
|||
|
|
// #ifndef H5
|
|||
|
|
fileExt = file.path.replace(reg, '').toLowerCase();
|
|||
|
|
// #endif
|
|||
|
|
// 使用数组的some方法，只要符合limitType中的一个，就返回true
|
|||
|
|
noArrowExt = (props.limitType as string[]).some((ext: string) => {
|
|||
|
|
// 转为小写
|
|||
|
|
return ext.toLowerCase() === fileExt;
|
|||
|
|
});
|
|||
|
|
if (!noArrowExt) showToast(t('uUpload.notAllowedExt', { ext: fileExt }));
|
|||
|
|
return noArrowExt;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
defineExpose({ clear, reUpload, selectFile, upload, retry, remove, doPreviewImage, lists });
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
<style lang="scss" scoped>
|
|||
|
|
@import '../../libs/css/style.components.scss';
|
|||
|
|
|
|||
|
|
.u-upload {
|
|||
|
|
@include vue-flex;
|
|||
|
|
flex-wrap: wrap;
|
|||
|
|
align-items: center;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.u-list-item {
|
|||
|
|
width: 200rpx;
|
|||
|
|
height: 200rpx;
|
|||
|
|
overflow: hidden;
|
|||
|
|
margin: 10rpx;
|
|||
|
|
background: rgb(244, 245, 246);
|
|||
|
|
position: relative;
|
|||
|
|
border-radius: 10rpx;
|
|||
|
|
/* #ifndef APP-NVUE */
|
|||
|
|
display: flex;
|
|||
|
|
/* #endif */
|
|||
|
|
align-items: center;
|
|||
|
|
justify-content: center;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.u-preview-wrap {
|
|||
|
|
border: 1px solid rgb(235, 236, 238);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.u-add-wrap {
|
|||
|
|
flex-direction: column;
|
|||
|
|
color: $u-content-color;
|
|||
|
|
font-size: 26rpx;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.u-add-tips {
|
|||
|
|
margin-top: 20rpx;
|
|||
|
|
line-height: 40rpx;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.u-add-wrap__hover {
|
|||
|
|
background-color: rgb(235, 236, 238);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.u-preview-image {
|
|||
|
|
display: block;
|
|||
|
|
width: 100%;
|
|||
|
|
height: 100%;
|
|||
|
|
border-radius: 10rpx;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.u-delete-icon {
|
|||
|
|
position: absolute;
|
|||
|
|
top: 10rpx;
|
|||
|
|
right: 10rpx;
|
|||
|
|
z-index: 10;
|
|||
|
|
background-color: $u-type-error;
|
|||
|
|
border-radius: 100rpx;
|
|||
|
|
width: 44rpx;
|
|||
|
|
height: 44rpx;
|
|||
|
|
@include vue-flex;
|
|||
|
|
align-items: center;
|
|||
|
|
justify-content: center;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.u-upload-progress {
|
|||
|
|
position: absolute;
|
|||
|
|
bottom: 10rpx;
|
|||
|
|
left: 8rpx;
|
|||
|
|
right: 8rpx;
|
|||
|
|
z-index: 9;
|
|||
|
|
width: auto;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.u-error-btn {
|
|||
|
|
color: var(--u-white-color);
|
|||
|
|
background-color: $u-type-error;
|
|||
|
|
font-size: 20rpx;
|
|||
|
|
padding: 4px 0;
|
|||
|
|
text-align: center;
|
|||
|
|
position: absolute;
|
|||
|
|
bottom: 0;
|
|||
|
|
left: 0;
|
|||
|
|
right: 0;
|
|||
|
|
z-index: 9;
|
|||
|
|
line-height: 1;
|
|||
|
|
}
|
|||
|
|
</style>
|