Commit a5399ddd authored by zhengke's avatar zhengke

no message

parent 73db0c40
<template>
<view class="u-upload" v-if="!disabled">
<view v-if="showUploadList" class="u-list-item u-preview-wrap" v-for="(item, index) in lists" :key="index" :style="{
width: width + 'rpx',
height: width + 'rpx',
}">
<view v-if="deletable&&showShanchu" class="u-delete-icon" @tap.stop="deleteItem(index)">
<u-icon class="u-icon" name="cross" size="20" color="#ffffff"></u-icon>
</view>
<u-line-progress v-if="showProgress && item.progress > 0 && !item.error" :show-percent="false" height="16" class="u-progress" :percent="item.progress"></u-line-progress>
<view @tap.stop="retry(index)" v-if="item.error" class="u-error-btn">点击重试</view>
<image @tap.stop="doPreviewImage(item.url || item.path, index)" class="u-preview-image" v-if="!item.isImage&&item.url" :src=" item.url || item.path "
:mode="imageMode"></image>
</view>
<slot name="file" :file="lists"></slot>
<view style="display: inline-block;" @tap="selectFile" v-if="maxCount > lists.length">
<slot name="addBtn"></slot>
<view v-if="!customBtn" class="u-list-item u-add-wrap" hover-class="u-add-wrap__hover" hover-stay-time="150" :style="{
width: width + 'rpx',
height: width + 'rpx'
}">
<u-icon name="plus" class="u-add-btn" size="40"></u-icon>
<view class="u-add-tips">{{uploadText}}</view>
</view>
</view>
</view>
</template>
<script>
/**
* upload 图片上传
* @description 该组件用于上传图片场景
* @tutorial https://www.uviewui.com/components/upload.html
* @property {String} action 服务器上传地址
* @property {String Number} max-count 最大选择图片的数量(默认99)
* @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)
* @property {Boolean} show-progress 是否显示进度条(默认true)
* @property {Boolean} disabled 是否启用(显示/移仓)组件(默认false)
* @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)
* @property {Object} header 上传携带的头信息,对象形式
* @property {Object} form-data 上传额外携带的参数
* @property {String} name 上传文件的字段名,供后端获取使用(默认file)
* @property {Array<String>} size-type original 原图,compressed 压缩图,默认二者都有(默认['original', 'compressed'])
* @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'])
* @property {Boolean} preview-full-image 是否可以通过uni.previewImage预览已选择的图片(默认true)
* @property {Boolean} multiple 是否开启图片多选,部分安卓机型不支持(默认true)
* @property {Boolean} deletable 是否显示删除图片的按钮(默认true)
* @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)
* @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
* @property {Boolean} upload-text 选择图片按钮的提示文字(默认“选择图片”)
* @property {Boolean} auto-upload 选择完图片是否自动上传,见上方说明(默认true)
* @property {Boolean} show-tips 特殊情况下是否自动提示toast,见上方说明(默认true)
* @property {Boolean} show-upload-list 是否显示组件内部的图片预览(默认true)
* @event {Function} on-oversize 图片大小超出最大允许大小
* @event {Function} on-preview 全屏预览图片时触发
* @event {Function} on-remove 移除图片时触发
* @event {Function} on-success 图片上传成功时触发
* @event {Function} on-change 图片上传后,无论成功或者失败都会触发
* @event {Function} on-error 图片上传失败时触发
* @event {Function} on-progress 图片上传过程中的进度变化过程触发
* @event {Function} on-uploaded 所有图片上传完毕触发
* @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
* @example <u-upload :action="action" :file-list="fileList" ></u-upload>
*/
export default {
name: 'u-upload',
props: {
showShanchu:{
type: Boolean,
default: true
},
indexs:{
type: Number,
default: null
},
obj:{
type: Object,
default: {}
},
//是否显示组件自带的图片预览功能
showUploadList: {
type: Boolean,
default: true
},
// 后端地址
action: {
type: String,
default: ''
},
// 最大上传数量
maxCount: {
type: [String, Number],
default: 52
},
// 是否显示进度条
showProgress: {
type: Boolean,
default: true
},
// 是否启用
disabled: {
type: Boolean,
default: false
},
// 预览上传的图片时的裁剪模式,和image组件mode属性一致
imageMode: {
type: String,
default: 'aspectFill'
},
// 头部信息
header: {
type: Object,
default () {
return {}
}
},
// 额外携带的参数
formData: {
type: Object,
default () {
return {}
}
},
// 上传的文件字段名
name: {
type: String,
default: 'file'
},
// 所选的图片的尺寸, 可选值为original compressed
sizeType: {
type: Array,
default () {
return ['original', 'compressed']
}
},
sourceType: {
type: Array,
default () {
return ['album', 'camera']
}
},
// 是否在点击预览图后展示全屏图片预览
previewFullImage: {
type: Boolean,
default: true
},
// 是否开启图片多选,部分安卓机型不支持
multiple: {
type: Boolean,
default: true
},
// 是否展示删除按钮
deletable: {
type: Boolean,
default: true
},
// 文件大小限制,单位为byte
maxSize: {
type: [String, Number],
default: Number.MAX_VALUE
},
// 显示已上传的文件列表
fileList: {
type: Array,
default () {
return []
}
},
// 上传区域的提示文字
uploadText: {
type: String,
default: '选择图片'
},
// 是否自动上传
autoUpload: {
type: Boolean,
default: true
},
// 是否显示toast消息提示
showTips: {
type: Boolean,
default: true
},
// 是否通过slot自定义传入选择图标的按钮
customBtn: {
type: Boolean,
default: false
},
// 内部预览图片区域和选择图片按钮的区域宽度,高等于宽
width: {
type: [String, Number],
default: 200
}
},
mounted() {
},
data() {
return {
lists: [],
isInCount: true,
uploading: false,
isData:true
}
},
watch: {
fileList: {
immediate: true,
handler(newData, oldData) {
this.lists = []
newData.map(value => {
if(value){
let data = {url: value.Path, error: false, progress: 0}
this.lists.push(data);
}
})
},
deep: true
},
},
methods: {
// 清除列表
clear() {
this.lists = [];
// 如果是清空形式的话,发出"on-list-change"事件
this.$emit('on-list-change', this.lists);
},
// 重新上传队列中上传失败的所有文件
reUpload() {
this.uploadFile();
},
// 选择图片
selectFile() {
if (this.disabled) return;
const {
name = '', maxCount, multiple, maxSize, sizeType, lists, camera, compressed, maxDuration, sourceType
} = this;
let chooseFile = null;
const newMaxCount = maxCount - lists.length;
// 设置为只选择图片的时候使用 chooseImage 来实现
chooseFile = new Promise((resolve, reject) => {
uni.chooseImage({
count: multiple ? (newMaxCount > 9 ? 9 : newMaxCount) : 1,
sourceType: sourceType,
sizeType,
success: resolve,
fail: reject
});
});
chooseFile
.then((res) => {
let file = null;
let listOldLength = this.lists.length;
res.tempFiles.map((val, index) => {
// 如果是非多选,index大于等于1或者超出最大限制数量时,不处理
if (!multiple && index >= 1) return;
if (val.size > maxSize) {
this.$emit('on-oversize', val, this.lists);
this.showToast('超出允许的文件大小');
} else {
if(maxCount <= lists.length) {
this.$emit('on-exceed', val, this.lists);
this.showToast('超出最大允许的文件个数');
return ;
}
lists.push({
url: val.path,
progress: 0,
error: false
});
// 列表发生改变,发出事件,第二个参数为当前发生变化的项的索引
this.$emit('on-list-change', this.lists);
}
})
// 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
this.$emit('on-choose-complete', this.lists);
if(this.autoUpload) this.uploadFile(listOldLength);
})
.catch(error => {
// this.$emit('on-error', error);
});
},
// 提示用户消息
showToast(message, force = false) {
if(this.showTips || force) {
uni.showToast({
title: message,
icon: "none"
});
}
},
// 该方法供用户通过ref调用,手动上传
upload() {
this.uploadFile();
},
// 对失败的图片重新上传
retry(index) {
this.lists[index].progress = 0;
this.lists[index].error = false;
this.lists[index].response = null;
uni.showLoading({
title: '重新上传'
});
this.uploadFile(index);
},
// 上传图片
uploadFile(index = 0) {
if (this.disabled) return;
if(this.uploading) return ;
// 全部上传完成
if (index >= this.lists.length) {
this.$emit('on-uploaded', this.lists);
return ;
}
// 检查上传地址
if (!this.action) {
this.showToast('请配置上传地址', true);
return;
}
// 检查是否是已上传或者正在上传中
if (this.lists[index].progress == 100) {
if(this.autoUpload == false) this.uploadFile(index + 1);
return;
}
this.lists[index].error = false;
this.uploading = true;
// 创建上传对象
uni.compressImage({
src: this.lists[index].url,
quality: 80,
success: res => {
console.log(res.tempFilePath)
const task = uni.uploadFile({
url: this.action,
filePath: res.tempFilePath,
name: this.name,
formData: this.formData,
header: this.header,
success: (res) => {
if (res.statusCode != 200) {
this.uploadError(index, res.data);
} else {
// 上传成功
this.lists[index].response = res.data;
this.lists[index].progress = 100;
this.lists[index].error = false;
this.$emit('on-success', res.data, index, this.lists,this.obj,this.indexs);
}
},
fail: (e) => {
this.uploadError(index, e);
},
complete: (res) => {
uni.hideLoading();
this.uploading = false;
this.uploadFile(index + 1);
this.$emit('on-change', res, index, this.lists);
}
});
task.onProgressUpdate((res) => {
if (res.progress > 0) {
this.lists[index].progress = res.progress;
this.$emit('on-progress', res, index, this.lists);
}
});
}
})
},
// 上传失败
uploadError(index, err) {
this.lists[index].progress = 0;
this.lists[index].error = true;
this.lists[index].response = null;
this.$emit('on-error', err, index, this.lists);
this.showToast('上传失败,请重试');
},
// 删除一个图片
deleteItem(index) {
uni.showModal({
title: '提示',
content: '您确定要删除此项吗?',
success: res => {
if (res.confirm) {
// if (this.lists[index].process < 100 && this.lists[index].process > 0) {
// typeof this.lists[index].uploadTask != 'undefined' && this.lists[index].uploadTask.abort();
// }
this.lists.splice(index, 1);
this.$forceUpdate();
this.$emit('on-remove', index, this.lists,this.indexs);
this.showToast('移除成功');
// 列表发生改变,发出事件
this.$emit('on-list-change', this.lists);
}
}
});
},
// 用户通过ref手动的形式,移除一张图片
remove(index) {
// 判断索引的合法范围
if(index >= 0 && index < this.lists.length) {
this.lists.splice(index, 1);
this.$emit('on-list-change', this.lists);
}
},
// 预览图片
doPreviewImage(url, index) {
if (!this.previewFullImage)
return;
const images = this.lists.map(item => item.url || item.path);
uni.previewImage({
urls: images,
current: url,
success: () => {
this.$emit('on-preview', url, this.lists);
},
fail: () => {
uni.showToast({
title: '预览图片失败',
icon: 'none'
});
}
});
}
}
}
</script>
<style lang="scss" scoped>
.u-upload {
display: flex;
flex-wrap: wrap;
}
.u-list-item {
width: 200rpx;
height: 200rpx;
overflow: hidden;
/* margin: 10rpx; */
background: rgb(244, 245, 246);
position: relative;
/* border-radius: 10rpx; */
display: inline-flex;
align-items: center;
justify-content: center;
margin-right: 20rpx;
margin-bottom: 20rpx;
}
.u-preview-wrap {
border: 1px solid rgb(235, 236, 238);
}
.u-add-wrap {
flex-direction: column;
color: $u-content-color;
font-size: 28rpx;
}
.u-add-tips {
margin-top: 20rpx;
}
.u-add-wrap__hover {
background-color: rgb(235, 236, 238);
}
.u-preview-image {
display: block;
width: 100%;
height: 100%;
}
.u-delete-icon {
position: absolute;
top: 10rpx;
right: 10rpx;
z-index: 10;
background-color: $u-type-error;
border-radius: 100rpx;
width: 44rpx;
height: 44rpx;
display: flex;
align-items: center;
justify-content: center;
}
.u-icon {
display: flex;
align-items: center;
justify-content: center;
}
.u-progress {
position: absolute;
bottom: 10rpx;
left: 8rpx;
right: 8rpx;
z-index: 9;
width: auto;
}
.u-error-btn {
color: #FFFFFF;
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>
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