131 lines
2.7 KiB
Vue
131 lines
2.7 KiB
Vue
<template>
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<image
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v-if="!state.isError"
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class="su-img"
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:style="customStyle"
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:draggable="false"
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:mode="mode"
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:src="sheep.$url.cdn(src)"
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@tap="onImgPreview"
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@load="onImgLoad"
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@error="onImgError"
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></image>
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</template>
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<script setup>
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/**
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* 图片组件
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*
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* @property {String} src - 图片地址
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* @property {Number} mode - 裁剪方式
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* @property {String} isPreview - 是否开启预览
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* @property {Number} previewList - 预览列表
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* @property {String} current - 预览首张下标
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*
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* @event {Function} load - 图片加载完毕触发
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* @event {Function} error - 图片加载错误触发
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*
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*/
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import { reactive, computed } from 'vue';
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import sheep from '@/sheep';
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// 组件数据
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const state = reactive({
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isError: false,
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imgHeight: 600,
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});
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// 接收参数
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const props = defineProps({
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src: {
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type: String,
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default: '',
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},
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errorSrc: {
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type: String,
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default: '/static/img/shop/empty_network.png',
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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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isPreview: {
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type: Boolean,
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default: false,
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},
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previewList: {
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type: Array,
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default() {
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return [];
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},
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},
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current: {
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type: Number,
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default: -1,
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},
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height: {
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type: Number,
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default: 0,
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},
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width: {
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type: Number,
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default: 0,
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},
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radius: {
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type: Number,
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default: 0,
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},
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});
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const emits = defineEmits(['load', 'error']);
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const customStyle = computed(() => {
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return {
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height: (props.height || state.imgHeight) + 'rpx',
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width: props.width ? props.width + 'rpx' : '100%',
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borderRadius: props.radius ? props.radius + 'rpx' : '',
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};
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});
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// 图片加载完成
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function onImgLoad(e) {
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if (props.height === 0) {
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state.imgHeight = (e.detail.height / e.detail.width) * 750;
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}
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}
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// 图片加载错误
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function onImgError(e) {
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state.isError = true;
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emits('error', e);
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}
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// 预览图片
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function onImgPreview() {
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if (!props.isPreview) return;
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uni.previewImage({
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urls: props.previewList.length < 1 ? [props.src] : props.previewList,
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current: props.current,
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longPressActions: {
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itemList: ['发送给朋友', '保存图片', '收藏'],
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success: function (data) {
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console.log('选中了第' + (data.tapIndex + 1) + '个按钮,第' + (data.index + 1) + '张图片');
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},
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fail: function (err) {
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console.log(err.errMsg);
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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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.su-img {
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position: relative;
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width: 100%;
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height: 100%;
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display: block;
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}
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</style>
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