557 lines
17 KiB
Vue
557 lines
17 KiB
Vue
<template>
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<view class="u-upload" :style="[$u.addStyle(customStyle)]">
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<view class="u-upload__wrap" >
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<template v-if="previewImage">
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<view
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class="u-upload__wrap__preview"
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v-for="(item, index) in lists"
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:key="index"
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>
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<image
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v-if="item.isImage || (item.type && item.type === 'image')"
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:src="item.thumb || item.url"
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:mode="imageMode"
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class="u-upload__wrap__preview__image"
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@tap="onPreviewImage(item)"
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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-else
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class="u-upload__wrap__preview__other"
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>
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<u-icon
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color="#80CBF9"
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size="26"
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:name="item.isVideo || (item.type && item.type === 'video') ? 'movie' : 'folder'"
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></u-icon>
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<text class="u-upload__wrap__preview__other__text">{{item.isVideo || (item.type && item.type === 'video') ? '视频' : '文件'}}</text>
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</view>
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<view
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class="u-upload__status"
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v-if="item.status === 'uploading' || item.status === 'failed'"
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>
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<view class="u-upload__status__icon">
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<u-icon
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v-if="item.status === 'failed'"
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name="close-circle"
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color="#ffffff"
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size="25"
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/>
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<u-loading-icon
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size="22"
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mode="circle"
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color="#ffffff"
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v-else
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/>
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</view>
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<text
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v-if="item.message"
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class="u-upload__status__message"
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>{{ item.message }}</text>
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</view>
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<view
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class="u-upload__deletable"
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v-if="item.status !== 'uploading' && (deletable || item.deletable)"
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@tap.stop="deleteItem(index)"
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>
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<view class="u-upload__deletable__icon">
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<u-icon
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name="close"
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color="#ffffff"
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size="10"
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></u-icon>
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</view>
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</view>
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<view
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class="u-upload__success"
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v-if="item.status === 'success'"
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>
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<!-- #ifdef APP-NVUE -->
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<image
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:src="successIcon"
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class="u-upload__success__icon"
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></image>
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<!-- #endif -->
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<!-- #ifndef APP-NVUE -->
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<view class="u-upload__success__icon">
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<u-icon
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name="checkmark"
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color="#ffffff"
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size="12"
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></u-icon>
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</view>
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<!-- #endif -->
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</view>
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</view>
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</template>
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<template v-if="isInCount">
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<view
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v-if="$slots.default || $slots.$default"
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@tap="chooseFile"
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>
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<slot />
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</view>
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<view
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v-else
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class="u-upload__button"
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:hover-class="!disabled ? 'u-upload__button--hover' : ''"
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hover-stay-time="150"
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@tap="chooseFile"
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:class="[disabled && 'u-upload__button--disabled']"
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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
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:name="uploadIcon"
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size="26"
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:color="uploadIconColor"
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></u-icon>
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<text
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v-if="uploadText"
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class="u-upload__button__text"
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>{{ uploadText }}</text>
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</view>
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</template>
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</view>
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</view>
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</template>
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<script>
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import {
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chooseFile
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} from './utils';
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import mixin from './mixin.js';
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import props from './props.js';
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/**
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* upload 上传
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* @description 该组件用于上传图片场景
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* @tutorial https://uviewui.com/components/upload.html
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* @property {String} accept 接受的文件类型, 可选值为all media image file video （默认 'image' ）
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* @property {String | Array} capture 图片或视频拾取模式，当accept为image类型时设置capture可选额外camera可以直接调起摄像头（默认 ['album', 'camera'] ）
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* @property {Boolean} compressed 当accept为video时生效，是否压缩视频，默认为true（默认 true ）
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* @property {String} camera 当accept为video时生效，可选值为back或front（默认 'back' ）
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* @property {Number} maxDuration 当accept为video时生效，拍摄视频最长拍摄时间，单位秒（默认 60 ）
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* @property {String} uploadIcon 上传区域的图标，只能内置图标（默认 'camera-fill' ）
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* @property {String} uploadIconColor 上传区域的图标的字体颜色，只能内置图标（默认 #D3D4D6 ）
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* @property {Boolean} useBeforeRead 是否开启文件读取前事件（默认 false ）
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* @property {Boolean} previewFullImage 是否显示组件自带的图片预览功能（默认 true ）
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* @property {String | Number} maxCount 最大上传数量（默认 52 ）
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* @property {Boolean} disabled 是否启用（默认 false ）
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* @property {String} imageMode 预览上传的图片时的裁剪模式，和image组件mode属性一致（默认 'aspectFill' ）
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* @property {String} name 标识符，可以在回调函数的第二项参数中获取
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* @property {Array} sizeType 所选的图片的尺寸, 可选值为original compressed（默认 ['original', 'compressed'] ）
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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 false ）
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* @property {Boolean} deletable 是否展示删除按钮（默认 true ）
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* @property {String | Number} maxSize 文件大小限制，单位为byte （默认 Number.MAX_VALUE ）
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* @property {Array} fileList 显示已上传的文件列表
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* @property {String} uploadText 上传区域的提示文字
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* @property {String | Number} width 内部预览图片区域和选择图片按钮的区域宽度（默认 80 ）
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* @property {String | Number} height 内部预览图片区域和选择图片按钮的区域高度（默认 80 ）
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* @property {Object} customStyle 组件的样式，对象形式
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* @event {Function} afterRead 读取后的处理函数
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* @event {Function} beforeRead 读取前的处理函数
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* @event {Function} oversize 文件超出大小限制
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* @event {Function} clickPreview 点击预览图片
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* @event {Function} delete 删除图片
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* @example <u-upload :action="action" :fileList="fileList" ></u-upload>
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*/
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export default {
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name: "u-upload",
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mixins: [uni.$u.mpMixin, uni.$u.mixin, mixin,props],
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data() {
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return {
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// #ifdef APP-NVUE
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successIcon: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAYAAACM/rhtAAAAAXNSR0IArs4c6QAAAERlWElmTU0AKgAAAAgAAYdpAAQAAAABAAAAGgAAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAAAKKADAAQAAAABAAAAKAAAAAB65masAAACP0lEQVRYCc3YXygsURwH8K/dpcWyG3LF5u/6/+dKVylSypuUl6uUPMifKMWL8oKEB1EUT1KeUPdR3uTNUsSLxb2udG/cbvInNuvf2rVnazZ/ZndmZ87snjM1Z+Z3zpzfp9+Z5mEAhlvjRtZgCKs+gnPAOcAkkMOR4jEHfItjDvgRxxSQD8cM0BuOCaAvXNCBQrigAsXgggYUiwsK0B9cwIH+4gIKlIILGFAqLiBAOTjFgXJxigJp4BQD0sIpAqSJow6kjSNAFTnRaHJwLenD6Mud52VQAcrBfTd2oyq+HtGaGGWAcnAVcXWoM3bCZrdi+ncPfaAcXE5UKVpdW/vitGPqqAtn98d0gXJwX7Qp6MmegUYVhvmTIezdmHlxJCjpHRTCFerLkRRu4k0aqdajN3sWOo0BK//msHa+xDuPC/oNFMKRhTtM4xjIX0SCNpXL4+7VIaHuyiWEp2L7ahWLf8fejfPdqPmC3mJicORZUp1CQzm+GiphvljGk+PBvWRbxii+xVTj5M6CiZ/tsDufvaXyxEUDxeLIyvu3m0iOyEFWVAkydcVYdyFrE9tQk9iMq6f/GNlvwt3LjQfh60LUrw9/cFyyMJUW/XkLSNMV4Mi6C5ML+ui4x5ClAX9sB9w0wV6wglJwJCv5fOxcr6EstgbGiEw4XcfUry4cWrcEUW8n+ARKxXEJHhw2WG43UKSvwI/TSZgvl7kh0b3XLZaLEy0QmMgLZAVH7J+ALOE+AVnDvQOyiPMAWcW5gSzjCPAV+78S5WE0GrQAAAAASUVORK5CYII=',
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// #endif
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lists: [],
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isInCount: true,
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}
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},
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watch: {
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// 监听文件列表的变化，重新整理内部数据
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fileList: {
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immediate: true,
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handler() {
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this.formatFileList()
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}
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},
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},
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methods: {
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formatFileList() {
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const {
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fileList = [], maxCount
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} = this;
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const lists = fileList.map((item) =>
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Object.assign(Object.assign({}, item), {
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// 如果item.url为本地选择的blob文件的话，无法判断其为video还是image，此处优先通过accept做判断处理
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isImage: this.accept === 'image' || uni.$u.test.image(item.url || item.thumb),
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isVideo: this.accept === 'video' || uni.$u.test.video(item.url || item.thumb),
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deletable: typeof(item.deletable) === 'boolean' ? item.deletable : this.deletable,
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})
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);
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this.lists = lists
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this.isInCount = lists.length < maxCount
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},
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chooseFile() {
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const {
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maxCount,
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multiple,
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lists,
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disabled
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} = this;
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if (disabled) return;
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// 如果用户传入的是字符串，需要格式化成数组
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let capture;
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try {
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capture = uni.$u.test.array(this.capture) ? this.capture : this.capture.split(',');
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}catch(e) {
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capture = [];
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}
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chooseFile(
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Object.assign({
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accept: this.accept,
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multiple: this.multiple,
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capture: capture,
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compressed: this.compressed,
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maxDuration: this.maxDuration,
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sizeType: this.sizeType,
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camera: this.camera,
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}, {
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maxCount: maxCount - lists.length,
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})
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)
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.then((res) => {
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this.onBeforeRead(multiple ? res : res[0]);
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})
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.catch((error) => {
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this.$emit('error', error);
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});
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},
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// 文件读取之前
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onBeforeRead(file) {
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const {
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beforeRead,
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useBeforeRead,
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} = this;
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let res = true
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// beforeRead是否为一个方法
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if (uni.$u.test.func(beforeRead)) {
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// 如果用户定义了此方法，则去执行此方法，并传入读取的文件回调
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res = beforeRead(file, this.getDetail());
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}
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if (useBeforeRead) {
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res = new Promise((resolve, reject) => {
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this.$emit(
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'beforeRead',
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Object.assign(Object.assign({
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file
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}, this.getDetail()), {
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callback: (ok) => {
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ok ? resolve() : reject();
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},
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})
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);
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});
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}
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if (!res) {
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return;
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}
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if (uni.$u.test.promise(res)) {
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res.then((data) => this.onAfterRead(data || file));
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} else {
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this.onAfterRead(file);
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}
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},
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getDetail(index) {
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return {
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name: this.name,
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index: index == null ? this.fileList.length : index,
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};
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},
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onAfterRead(file) {
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const {
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maxSize,
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afterRead
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} = this;
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const oversize = Array.isArray(file) ?
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file.some((item) => item.size > maxSize) :
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file.size > maxSize;
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if (oversize) {
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this.$emit('oversize', Object.assign({
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file
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}, this.getDetail()));
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return;
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}
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if (typeof afterRead === 'function') {
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afterRead(file, this.getDetail());
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}
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this.$emit('afterRead', Object.assign({
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file
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}, this.getDetail()));
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},
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deleteItem(index) {
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this.$emit(
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'delete',
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Object.assign(Object.assign({}, this.getDetail(index)), {
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file: this.fileList[index],
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})
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);
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},
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// 预览图片
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onPreviewImage(item) {
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if (!item.isImage || !this.previewFullImage) return
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uni.previewImage({
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// 先filter找出为图片的item，再返回filter结果中的图片url
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urls: this.lists.filter((item) => this.accept === 'image' || uni.$u.test.image(item.url || item.thumb)).map((item) => item.url || item.thumb),
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current: item.url || item.thumb,
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fail() {
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uni.$u.toast('预览图片失败')
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},
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});
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},
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onPreviewVideo(event) {
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if (!this.data.previewFullImage) return;
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const {
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index
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} = event.currentTarget.dataset;
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const {
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lists
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} = this.data;
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wx.previewMedia({
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sources: lists
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.filter((item) => isVideoFile(item))
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.map((item) =>
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Object.assign(Object.assign({}, item), {
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type: 'video'
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})
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),
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current: index,
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fail() {
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uni.$u.toast('预览视频失败')
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},
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});
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},
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onClickPreview(event) {
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const {
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index
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} = event.currentTarget.dataset;
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const item = this.data.lists[index];
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this.$emit(
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'clickPreview',
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Object.assign(Object.assign({}, item), this.getDetail(index))
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);
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}
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}
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}
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</script>
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<style lang="scss" scoped>
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@import '../../libs/css/components.scss';
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$u-upload-preview-border-radius: 2px !default;
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$u-upload-preview-margin: 0 8px 8px 0 !default;
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$u-upload-image-width:80px !default;
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$u-upload-image-height:$u-upload-image-width;
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$u-upload-other-bgColor: rgb(242, 242, 242) !default;
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$u-upload-other-flex:1 !default;
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$u-upload-text-font-size:11px !default;
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$u-upload-text-color:$u-tips-color !default;
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$u-upload-text-margin-top:2px !default;
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$u-upload-deletable-right:0 !default;
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$u-upload-deletable-top:0 !default;
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$u-upload-deletable-bgColor:rgb(55, 55, 55) !default;
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$u-upload-deletable-height:14px !default;
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$u-upload-deletable-width:$u-upload-deletable-height;
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$u-upload-deletable-boder-bottom-left-radius:100px !default;
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$u-upload-deletable-zIndex:3 !default;
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$u-upload-success-bottom:0 !default;
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$u-upload-success-right:0 !default;
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$u-upload-success-border-top-color:transparent !default;
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$u-upload-success-border-left-color:transparent !default;
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$u-upload-success-border-bottom-color: $u-success !default;
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$u-upload-success-border-right-color:$u-upload-success-border-bottom-color;
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$u-upload-success-border-width:9px !default;
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$u-upload-icon-top:0px !default;
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$u-upload-icon-right:0px !default;
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$u-upload-icon-h5-top:1px !default;
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$u-upload-icon-h5-right:0 !default;
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$u-upload-icon-width:16px !default;
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$u-upload-icon-height:$u-upload-icon-width;
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$u-upload-success-icon-bottom:-10px !default;
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$u-upload-success-icon-right:-10px !default;
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$u-upload-status-right:0 !default;
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$u-upload-status-left:0 !default;
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$u-upload-status-bottom:0 !default;
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$u-upload-status-top:0 !default;
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$u-upload-status-bgColor:rgba(0, 0, 0, 0.5) !default;
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$u-upload-status-icon-Zindex:1 !default;
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$u-upload-message-font-size:12px !default;
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$u-upload-message-color:#FFFFFF !default;
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$u-upload-message-margin-top:5px !default;
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$u-upload-button-width:80px !default;
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$u-upload-button-height:$u-upload-button-width;
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$u-upload-button-bgColor:rgb(244, 245, 247) !default;
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$u-upload-button-border-radius:2px !default;
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$u-upload-botton-margin: 0 8px 8px 0 !default;
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$u-upload-text-font-size:11px !default;
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$u-upload-text-color:$u-tips-color !default;
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$u-upload-text-margin-top: 2px !default;
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$u-upload-hover-bgColor:rgb(230, 231, 233) !default;
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$u-upload-disabled-opacity:.5 !default;
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.u-upload {
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@include flex(column);
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flex: 1;
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&__wrap {
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@include flex;
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flex-wrap: wrap;
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flex: 1;
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&__preview {
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border-radius: $u-upload-preview-border-radius;
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margin: $u-upload-preview-margin;
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position: relative;
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overflow: hidden;
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@include flex;
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&__image {
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width: $u-upload-image-width;
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height: $u-upload-image-height;
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}
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&__other {
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width: $u-upload-image-width;
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height: $u-upload-image-height;
|
||
background-color: $u-upload-other-bgColor;
|
||
flex: $u-upload-other-flex;
|
||
@include flex(column);
|
||
justify-content: center;
|
||
align-items: center;
|
||
|
||
&__text {
|
||
font-size: $u-upload-text-font-size;
|
||
color: $u-upload-text-color;
|
||
margin-top: $u-upload-text-margin-top;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
&__deletable {
|
||
position: absolute;
|
||
top: $u-upload-deletable-top;
|
||
right: $u-upload-deletable-right;
|
||
background-color: $u-upload-deletable-bgColor;
|
||
height: $u-upload-deletable-height;
|
||
width: $u-upload-deletable-width;
|
||
@include flex;
|
||
border-bottom-left-radius: $u-upload-deletable-boder-bottom-left-radius;
|
||
align-items: center;
|
||
justify-content: center;
|
||
z-index: $u-upload-deletable-zIndex;
|
||
|
||
&__icon {
|
||
position: absolute;
|
||
transform: scale(0.7);
|
||
top: $u-upload-icon-top;
|
||
right: $u-upload-icon-right;
|
||
/* #ifdef H5 */
|
||
top: $u-upload-icon-h5-top;
|
||
right: $u-upload-icon-h5-right;
|
||
/* #endif */
|
||
}
|
||
}
|
||
|
||
&__success {
|
||
position: absolute;
|
||
bottom: $u-upload-success-bottom;
|
||
right: $u-upload-success-right;
|
||
@include flex;
|
||
// 由于weex(nvue)为阿里巴巴的KPI(部门业绩考核)的laji产物，不支持css绘制三角形
|
||
// 所以在nvue下使用图片，非nvue下使用css实现
|
||
/* #ifndef APP-NVUE */
|
||
border-top-color: $u-upload-success-border-top-color;
|
||
border-left-color: $u-upload-success-border-left-color;
|
||
border-bottom-color: $u-upload-success-border-bottom-color;
|
||
border-right-color: $u-upload-success-border-right-color;
|
||
border-width: $u-upload-success-border-width;
|
||
align-items: center;
|
||
justify-content: center;
|
||
/* #endif */
|
||
|
||
&__icon {
|
||
/* #ifndef APP-NVUE */
|
||
position: absolute;
|
||
transform: scale(0.7);
|
||
bottom: $u-upload-success-icon-bottom;
|
||
right: $u-upload-success-icon-right;
|
||
/* #endif */
|
||
/* #ifdef APP-NVUE */
|
||
width: $u-upload-icon-width;
|
||
height: $u-upload-icon-height;
|
||
/* #endif */
|
||
}
|
||
}
|
||
|
||
&__status {
|
||
position: absolute;
|
||
top: $u-upload-status-top;
|
||
bottom: $u-upload-status-bottom;
|
||
left: $u-upload-status-left;
|
||
right: $u-upload-status-right;
|
||
background-color: $u-upload-status-bgColor;
|
||
@include flex(column);
|
||
align-items: center;
|
||
justify-content: center;
|
||
|
||
&__icon {
|
||
position: relative;
|
||
z-index: $u-upload-status-icon-Zindex;
|
||
}
|
||
|
||
&__message {
|
||
font-size: $u-upload-message-font-size;
|
||
color: $u-upload-message-color;
|
||
margin-top: $u-upload-message-margin-top;
|
||
}
|
||
}
|
||
|
||
&__button {
|
||
@include flex(column);
|
||
align-items: center;
|
||
justify-content: center;
|
||
width: $u-upload-button-width;
|
||
height: $u-upload-button-height;
|
||
background-color: $u-upload-button-bgColor;
|
||
border-radius: $u-upload-button-border-radius;
|
||
margin: $u-upload-botton-margin;
|
||
/* #ifndef APP-NVUE */
|
||
box-sizing: border-box;
|
||
/* #endif */
|
||
|
||
&__text {
|
||
font-size: $u-upload-text-font-size;
|
||
color: $u-upload-text-color;
|
||
margin-top: $u-upload-text-margin-top;
|
||
}
|
||
|
||
&--hover {
|
||
background-color: $u-upload-hover-bgColor;
|
||
}
|
||
|
||
&--disabled {
|
||
opacity: $u-upload-disabled-opacity;
|
||
}
|
||
}
|
||
}
|
||
</style>
|