158 lines
3.3 KiB
Vue
158 lines
3.3 KiB
Vue
<template>
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<view v-bind="$attrs">
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<image :src="imgUrlShow" fit="cover" :mode="mode" @click="showDetail" style="width: 100%;height: 100%;"></image>
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<uv-overlay :show="showModel" opacity=".6" @click="showModel = false">
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<view class="overlay-box">
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<image class="detail-img" :src="imgUrlShow" fit="cover" :mode="mode"></image>
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</view>
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</uv-overlay>
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</view>
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</template>
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<script>
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import {previewFile, previewCacheThumbImage} from'@/api/common.js'
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import { get_base_url } from '@/api/request.js'
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import { useStorageStore } from "@/store/storage.js"
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// const storageStore = useStorageStore()
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export default {
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name:"image-preview",
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props:{
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imgId:{
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default:'',
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type:String
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},
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src:{
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default:'',
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type:String
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},
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width:{
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default:50,
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type:[String, Number]
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},
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height:{
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default:50,
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type:[String, Number]
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},
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isCache:{ // 获取缩略图
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type: Boolean,
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default: false
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},
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mode:{
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type: String,
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default: 'widthFix'
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},
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previewDetail: {
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default: '',
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type:[String, Boolean]
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}
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},
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data() {
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return {
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imgUrlShow: '',
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watching: false,
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base_url: get_base_url(),
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showModel: false
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};
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},
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computed:{
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storageStore:() => useStorageStore(),
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imageObj() {
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return this.storageStore?.imgObj||{}
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}
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},
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watch: {
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imgId: {
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handler(newval, oldval) {
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if(newval.indexOf('http') === 0){
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this.imgUrlShow = newval
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return
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}
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if (newval && this.watching) {
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this.getPreviewUrlBlob(newval);
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}
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},
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immediate: true,
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deep: true,
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},
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src: {
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handler(newval, oldval) {
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if (newval && this.watching) {
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this.imgUrlShow = this.base_url + this.src
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}
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},
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immediate: true,
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deep: true,
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}
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},
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methods: {
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showDetail(){
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if(!!this.previewDetail){
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this.showModel = true
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}
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},
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getPreviewUrlBlob(id) {
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if (!id) {
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this.imgUrlShow = ''
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return
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}
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if(this.isCache){
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let _cache = this.imageObj[`/${id}/${this.width}/${this.height}`] || ''
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if(_cache){
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this.imgUrlShow = _cache;
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return
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}
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previewCacheThumbImage(id, this.width,this.height).then((res) => {
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this.imgUrlShow = res;
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this.storageStore.setStorage('image', `/${id}/${this.width}/${this.height}`, res)
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});
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}else{
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let _cache = this.imageObj[`${id}`] || ''
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if(_cache){
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this.imgUrlShow = _cache;
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return
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}
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previewFile(id).then((result) => {
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//#ifdef APP-PLUS
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let _header = result.header['Content-Type'].split(';')[0]
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// #endif
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//#ifndef APP-PLUS
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let _header = result.header['content-type'].split(';')[0]
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// #endif
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let base64 = `data:${_header};base64,` + uni.arrayBufferToBase64(result.data)
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this.imgUrlShow = base64;
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this.storageStore.setStorage('image', id, base64)
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});
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}
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},
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},
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mounted() {
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if (this.imgId) {
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if(this.imgId.indexOf('http') === 0){
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this.imgUrlShow = this.imgId
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}else{
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this.getPreviewUrlBlob(this.imgId);
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}
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}
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this.watching = true
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if(this.src) {
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this.imgUrlShow = this.base_url + this.src
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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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.overlay-box{
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position: relative;
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height: 100%;
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.detail-img{
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position: absolute;
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left: 50%;
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top: 50%;
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max-width: 100%;
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max-height: 100%;
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transform: translate(-50%, -50%);
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}
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}
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</style> |