<template>
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<uni-shadow-root class="vant-uploader-index"><view class="van-uploader">
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<view class="van-uploader__wrapper">
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<view v-for="(item,index) in (lists)" :key="item.index" v-if="previewImage" class="van-uploader__preview" :data-index="index" @click="onClickPreview">
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<image v-if="item.isImage" :mode="imageFit" :src="item.url || item.path" :alt="item.name || ('图片' + index)" class="van-uploader__preview-image" :style="'width: '+(utils.addUnit(previewSize))+'; height: '+(utils.addUnit(previewSize))+';'" :data-index="index" @click="onPreviewImage"></image>
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<view v-else class="van-uploader__file" :style="'width: '+(utils.addUnit(previewSize))+'; height: '+(utils.addUnit(previewSize))+';'">
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<van-icon name="description" class="van-uploader__file-icon"></van-icon>
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<view class="van-uploader__file-name van-ellipsis">{{ item.name || item.url || item.path }}</view>
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</view>
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<view v-if="item.status === 'uploading' || item.status === 'failed'" class="van-uploader__mask">
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<van-icon v-if="item.status === 'failed'" name="close" class="van-uploader__mask-icon"></van-icon>
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<van-loading v-else custom-class="van-uploader__loading"></van-loading>
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<text v-if="item.message" class="van-uploader__mask-message">{{ item.message }}</text>
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</view>
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<view v-if="deletable && item.deletable" :data-index="index" class="van-uploader__preview-delete" @click.stop.prevent="deleteItem">
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<van-icon name="cross" class="van-uploader__preview-delete-icon"></van-icon>
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</view>
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</view>
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<block v-if="isInCount">
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<view class="van-uploader__slot" @click="startUpload">
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<slot></slot>
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</view>
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<view v-if="showUpload" :class="'van-uploader__upload '+(disabled ? 'van-uploader__upload--disabled': '')" :style="'width: '+(utils.addUnit(previewSize))+'; height: '+(utils.addUnit(previewSize))+';'" @click="startUpload">
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<van-icon :name="uploadIcon" class="van-uploader__upload-icon"></van-icon>
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<text v-if="uploadText" class="van-uploader__upload-text">{{ uploadText }}</text>
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</view>
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</block>
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</view>
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</view></uni-shadow-root>
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</template>
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<wxs src="../wxs/utils.wxs" module="utils"></wxs>
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<script>
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import VanIcon from '../icon/index.vue'
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import VanLoading from '../loading/index.vue'
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global['__wxVueOptions'] = {components:{'van-icon': VanIcon,'van-loading': VanLoading}}
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global['__wxRoute'] = 'vant/uploader/index'
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import { VantComponent } from '../common/component';
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import { isImageFile, isVideo, chooseFile, isPromise } from './utils';
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import { chooseImageProps, chooseVideoProps } from './shared';
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VantComponent({
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props: Object.assign(
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Object.assign(
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{
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disabled: Boolean,
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multiple: Boolean,
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uploadText: String,
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useBeforeRead: Boolean,
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afterRead: null,
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beforeRead: null,
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previewSize: {
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type: null,
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value: 80,
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},
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name: {
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type: [Number, String],
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value: '',
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},
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accept: {
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type: String,
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value: 'image',
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},
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fileList: {
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type: Array,
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value: [],
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observer: 'formatFileList',
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},
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maxSize: {
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type: Number,
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value: Number.MAX_VALUE,
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},
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maxCount: {
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type: Number,
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value: 100,
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},
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deletable: {
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type: Boolean,
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value: true,
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},
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showUpload: {
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type: Boolean,
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value: true,
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},
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previewImage: {
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type: Boolean,
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value: true,
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},
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previewFullImage: {
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type: Boolean,
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value: true,
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},
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imageFit: {
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type: String,
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value: 'scaleToFill',
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},
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uploadIcon: {
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type: String,
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value: 'photograph',
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},
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},
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chooseImageProps
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),
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chooseVideoProps
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),
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data: {
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lists: [],
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isInCount: true,
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},
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methods: {
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formatFileList() {
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const { fileList = [], maxCount } = this.data;
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const lists = fileList.map((item) =>
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Object.assign(Object.assign({}, item), {
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isImage:
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typeof item.isImage === 'undefined'
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? isImageFile(item)
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: item.isImage,
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deletable:
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typeof item.deletable === 'undefined' ? true : item.deletable,
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})
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);
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this.setData({ lists, isInCount: lists.length < maxCount });
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},
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getDetail(index) {
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return {
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name: this.data.name,
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index: index == null ? this.data.fileList.length : index,
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};
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},
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startUpload() {
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const { maxCount, multiple, accept, lists, disabled } = this.data;
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if (disabled) return;
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chooseFile(
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Object.assign(Object.assign({}, this.data), {
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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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let file = null;
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if (isVideo(res, accept)) {
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file = Object.assign({ path: res.tempFilePath }, res);
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} else {
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file = multiple ? res.tempFiles : res.tempFiles[0];
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}
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this.onBeforeRead(file);
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})
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.catch((error) => {
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this.$emit('error', error);
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});
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},
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onBeforeRead(file) {
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const { beforeRead, useBeforeRead } = this.data;
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let res = true;
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if (typeof beforeRead === 'function') {
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res = beforeRead(file, this.getDetail());
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}
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if (useBeforeRead) {
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res = new Promise((resolve, reject) => {
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this.$emit(
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'before-read',
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Object.assign(Object.assign({ file }, 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 (isPromise(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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onAfterRead(file) {
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const { maxSize } = this.data;
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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.$emit('oversize', Object.assign({ file }, this.getDetail()));
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return;
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}
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if (typeof this.data.afterRead === 'function') {
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this.data.afterRead(file, this.getDetail());
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}
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this.$emit('after-read', Object.assign({ file }, this.getDetail()));
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},
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deleteItem(event) {
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const { index } = event.currentTarget.dataset;
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this.$emit(
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'delete',
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Object.assign(Object.assign({}, this.getDetail(index)), {
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file: this.data.fileList[index],
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})
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);
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},
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onPreviewImage(event) {
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if (!this.data.previewFullImage) return;
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const { index } = event.currentTarget.dataset;
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const { lists } = this.data;
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const item = lists[index];
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wx.previewImage({
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urls: lists
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.filter((item) => item.isImage)
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.map((item) => item.url || item.path),
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current: item.url || item.path,
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fail() {
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wx.showToast({ title: '预览图片失败', icon: 'none' });
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},
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});
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},
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onClickPreview(event) {
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const { index } = event.currentTarget.dataset;
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const item = this.data.lists[index];
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this.$emit(
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'click-preview',
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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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export default global['__wxComponents']['vant/uploader/index']
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</script>
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<style platform="mp-weixin">
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@import '../common/index.css';.van-uploader{position:relative;display:inline-block}.van-uploader__wrapper{display:-webkit-flex;display:flex;-webkit-flex-wrap:wrap;flex-wrap:wrap}.van-uploader__slot:empty{display:none}.van-uploader__slot:not(:empty)+.van-uploader__upload{display:none!important}.van-uploader__upload{position:relative;display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;box-sizing:border-box;width:80px;height:80px;margin:0 8px 8px 0;background-color:#f7f8fa}.van-uploader__upload:active{background-color:#f2f3f5}.van-uploader__upload-icon{color:#dcdee0;font-size:24px}.van-uploader__upload-text{margin-top:8px;color:#969799;font-size:12px}.van-uploader__upload--disabled{opacity:.5;opacity:var(--uploader-disabled-opacity,.5)}.van-uploader__preview{position:relative;margin:0 8px 8px 0;cursor:pointer}.van-uploader__preview-image{display:block;width:80px;height:80px;overflow:hidden}.van-uploader__preview-delete{position:absolute;top:0;right:0;width:14px;height:14px;background-color:rgba(0,0,0,.7);border-radius:0 0 0 12px}.van-uploader__preview-delete-icon{position:absolute;top:-2px;right:-2px;color:#fff;font-size:16px;-webkit-transform:scale(.5);transform:scale(.5)}.van-uploader__file{display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;width:80px;height:80px;background-color:#f7f8fa}.van-uploader__file-icon{color:#646566;font-size:20px}.van-uploader__file-name{box-sizing:border-box;width:100%;margin-top:8px;padding:0 4px;color:#646566;font-size:12px;text-align:center}.van-uploader__mask{position:absolute;top:0;right:0;bottom:0;left:0;display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;color:#fff;background-color:rgba(50,50,51,.88)}.van-uploader__mask-icon{font-size:22px}.van-uploader__mask-message{margin-top:6px;padding:0 4px;font-size:12px;line-height:14px}.van-uploader__loading{width:22px;height:22px;color:#fff!important}
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</style>
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