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@@ -0,0 +1,570 @@
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+<template>
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+ <view class="drag-img">
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+ <template v-if="viewWidth">
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+ <movable-area class="drag-img-area" :style="{ height: areaHeight }" @mouseenter="mouseenter"
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+ @mouseleave="mouseleave">
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+ <movable-view v-for="(item, index) in imageList" :key="item.id" class="drag-img-area-view" direction="all" :y="item.y"
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+ :x="item.x"
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+ :damping="40"
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+ :disabled="item.disable"
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+ @change="onChange($event, item)"
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+ @touchstart="touchstart(item)"
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+ @mousedown="touchstart(item)"
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+ @touchend="touchend(item)"
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+ @mouseup="touchend(item)"
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+ :style="{
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+ width: viewWidth + 'px',
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+ height: viewWidth + 'px',
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+ 'z-index': item.zIndex,
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+ opacity: item.opacity
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+ }">
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+ <view class="drag-img-area-view-image"
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+ :style="{
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+ width: childWidth,
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+ height: childWidth,
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+ borderRadius: borderRadius + 'rpx',
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+ transform: 'scale(' + item.scale + ')'
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+ }">
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+ <image class="drag-img-area-view-image-img" :src="item.src" mode="aspectFill"></image>
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+ <view class="drag-img-area-view-image-del" @click="delImages(item, index)" @touchstart.stop="delImageMp(item, index)"
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+ @touchend.stop="nothing()" @mousedown.stop="nothing()" @mouseup.stop="nothing()">
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+ <view class="del-view">
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+ <image class="del-img" src="./icon_del.png">
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+ </image>
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+ </view>
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+ </view>
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+ </view>
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+ </movable-view>
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+ <view class="drag-img-area-view-add" v-if="imageList.length < number"
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+ :style="{ top: add.y, left: add.x, width: viewWidth + 'px', height: viewWidth + 'px' }"
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+ @click="addImages">
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+ <view class="add-view"
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+ :style="{ width: childWidth, height: childWidth, borderRadius: borderRadius + 'rpx' }">
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+ <image :style="{ width: childWidth, height: childWidth, borderRadius: borderRadius + 'rpx' }"
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+ src="./icon_add.png">
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+ </image>
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+ </view>
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+ </view>
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+ </movable-area>
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+
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+ </template>
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+ </view>
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+</template>
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+
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+<script>
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+ export default {
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+ emits: ['input', 'update:modelValue'],
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+ props: {
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+ // 排序图片
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+ value: {
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+ type: Array,
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+ default: function() {
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+ return []
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+ }
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+ },
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+ // 排序图片
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+ modelValue: {
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+ type: Array,
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+ default: function() {
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+ return []
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+ }
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+ },
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+ // 从 list 元素对象中读取的键名
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+ keyName: {
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+ type: String,
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+ default: null
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+ },
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+ // 选择图片数量限制
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+ number: {
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+ type: Number,
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+ default: 9
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+ },
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+ // 图片父容器宽度(实际显示的图片宽度为 imageWidth / 1.1 ),单位 rpx
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+ // imageWidth > 0 则 cols 无效
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+ imageWidth: {
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+ type: Number,
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+ default: 0
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+ },
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+ // 图片列数
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+ cols: {
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+ type: Number,
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+ default: 3
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+ },
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+ // 图片圆角,单位 rpx
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+ borderRadius: {
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+ type: Number,
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+ default: 25
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+ },
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+ // 图片周围空白填充,单位 rpx
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+ padding: {
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+ type: Number,
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+ default: 10
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+ },
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+ // 拖动图片时放大倍数 [0, ∞)
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+ scale: {
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+ type: Number,
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+ default: 1.1
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+ },
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+ // 拖动图片时不透明度
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+ opacity: {
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+ type: Number,
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+ default: 0.7
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+ },
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+ // 自定义添加
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+ addImage: {
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+ type: Function,
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+ default: null
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+ },
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+ // 删除确认
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+ delImage: {
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+ type: Function,
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+ default: null
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+ }
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+ },
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+ data() {
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+ return {
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+ imageList: [],
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+ width: 0,
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+ add: {
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+ x: 0,
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+ y: 0
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+ },
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+ colsValue: 0,
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+ viewWidth: 0,
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+ tempItem: null,
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+ timer: null,
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+ changeStatus: true,
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+ preStatus: true,
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+ first: true,
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+ }
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+ },
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+ computed: {
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+ areaHeight() {
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+ let height = ''
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+ // return '355px'
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+ if (this.imageList.length < this.number) {
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+ height = (Math.ceil((this.imageList.length + 1) / this.colsValue) * this.viewWidth).toFixed() + 'px'
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+ } else {
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+ height = (Math.ceil(this.imageList.length / this.colsValue) * this.viewWidth).toFixed() + 'px'
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+ }
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+ console.log('areaHeight', height)
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+ return height
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+ },
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+ childWidth() {
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+ return this.viewWidth - this.rpx2px(this.padding) + 'px'
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+ },
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+ },
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+ watch: {
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+ value: {
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+ handler(n) {
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+ if (!this.first && this.changeStatus) {
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+ let flag = false
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+ for (let i = 0; i < n.length; i++) {
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+ if (flag) {
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+ this.addProperties(this.getSrc(n[i]))
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+ continue
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+ }
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+ if (this.imageList.length === i || this.imageList[i].src !== this.getSrc(n[i])) {
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+ flag = true
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+ this.imageList.splice(i)
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+ this.addProperties(this.getSrc(n[i]))
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+ }
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+ }
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+ this.$emit('uploadFile', n);
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+ }
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+ },
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+ deep: true
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+ },
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+ modelValue: {
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+ handler(n) {
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+ if (!this.first && this.changeStatus) {
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+ console.log('watch', n)
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+ let flag = false
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+ for (let i = 0; i < n.length; i++) {
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+ if (flag) {
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+ this.addProperties(this.getSrc(n[i]))
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+ continue
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+ }
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+ if (this.imageList.length === i || this.imageList[i].src !== this.getSrc(n[i])) {
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+ flag = true
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+ this.imageList.splice(i)
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+ this.addProperties(this.getSrc(n[i]))
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+ }
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+ }
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+ }
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+ },
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+ deep: true
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+ },
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+ },
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+ created() {
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+ this.width = uni.getSystemInfoSync().windowWidth
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+ },
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+ mounted() {
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+ const query = uni.createSelectorQuery().in(this)
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+ query.select('.drag-img').boundingClientRect(data => {
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+ this.colsValue = this.cols
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+ this.viewWidth = data.width / this.cols
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+ if (this.imageWidth > 0) {
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+ this.viewWidth = this.rpx2px(this.imageWidth)
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+ this.colsValue = Math.floor(data.width / this.viewWidth)
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+ }
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+ let list = this.value
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+ // #ifdef VUE3
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+ list = this.modelValue
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+ // #endif
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+ for (let item of list) {
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+ this.addProperties(this.getSrc(item))
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+ }
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+ this.first = false
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+
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+ })
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+ query.exec()
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+ },
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+ methods: {
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+ getSrc(item) {
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+ if (this.keyName !== null) {
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+ return item[this.keyName]
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+ }
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+ return item
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+ },
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+ onChange(e, item) {
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+ if (!item) return
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+ item.oldX = e.detail.x
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+ item.oldY = e.detail.y
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+ if (e.detail.source === 'touch') {
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+ if (item.moveEnd) {
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+ item.offset = Math.sqrt(Math.pow(item.oldX - item.absX * this.viewWidth, 2) + Math.pow(item.oldY -
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+ item
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+ .absY * this.viewWidth, 2))
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+ }
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+ let x = Math.floor((e.detail.x + this.viewWidth / 2) / this.viewWidth)
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+ if (x >= this.colsValue) return
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+ let y = Math.floor((e.detail.y + this.viewWidth / 2) / this.viewWidth)
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+ let index = this.colsValue * y + x
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+ if (item.index != index && index < this.imageList.length) {
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+ this.changeStatus = false
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+ for (let obj of this.imageList) {
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+ if (item.index > index && obj.index >= index && obj.index < item.index) {
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+ this.change(obj, 1)
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+ } else if (item.index < index && obj.index <= index && obj.index > item.index) {
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+ this.change(obj, -1)
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+ } else if (obj.id != item.id) {
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+ obj.offset = 0
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+ obj.x = obj.oldX
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+ obj.y = obj.oldY
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+ setTimeout(() => {
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+ this.$nextTick(() => {
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+ obj.x = obj.absX * this.viewWidth
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+ obj.y = obj.absY * this.viewWidth
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+ })
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+ }, 0)
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+ }
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+ }
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+ item.index = index
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+ item.absX = x
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+ item.absY = y
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+ if (!item.moveEnd) {
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+ setTimeout(() => {
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+ this.$nextTick(() => {
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+ item.x = item.absX * this.viewWidth
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+ item.y = item.absY * this.viewWidth
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+ })
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+ }, 0)
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+ }
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+ // console.log('bbb', JSON.parse(JSON.stringify(item)));
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+ this.sortList()
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+ }
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+ }
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+ },
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+ change(obj, i) {
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+ obj.index += i
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+ obj.offset = 0
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+ obj.x = obj.oldX
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+ obj.y = obj.oldY
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+ obj.absX = obj.index % this.colsValue
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+ obj.absY = Math.floor(obj.index / this.colsValue)
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+ setTimeout(() => {
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+ this.$nextTick(() => {
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+ obj.x = obj.absX * this.viewWidth
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+ obj.y = obj.absY * this.viewWidth
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+ })
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+ }, 0)
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+ },
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+ touchstart(item) {
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+ this.imageList.forEach(v => {
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+ v.zIndex = v.index + 9
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+ })
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+ item.zIndex = 99
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+ item.moveEnd = true
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+ this.tempItem = item
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+ this.timer = setTimeout(() => {
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+ item.scale = this.scale
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+ item.opacity = this.opacity
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+ clearTimeout(this.timer)
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+ this.timer = null
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+ }, 200)
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+ },
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+ touchend(item) {
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+ this.previewImage(item)
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+ item.scale = 1
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+ item.opacity = 1
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+ item.x = item.oldX
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+ item.y = item.oldY
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+ item.offset = 0
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+ item.moveEnd = false
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+ setTimeout(() => {
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+ this.$nextTick(() => {
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+ item.x = item.absX * this.viewWidth
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+ item.y = item.absY * this.viewWidth
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+ this.tempItem = null
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+ this.changeStatus = true
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+ })
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+ // console.log('ccc', JSON.parse(JSON.stringify(item)));
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+ }, 0)
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+ // console.log('ddd', JSON.parse(JSON.stringify(item)));
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+ },
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+ previewImage(item) {
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+ if (this.timer && this.preStatus && this.changeStatus && item.offset < 28.28) {
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+ clearTimeout(this.timer)
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+ this.timer = null
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+ const list = this.value || this.modelValue
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+ let srcList = list.map(v => this.getSrc(v))
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+ console.log(list, srcList);
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+ uni.previewImage({
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+ urls: srcList,
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+ current: item.src,
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+ success: () => {
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+ this.preStatus = false
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+ setTimeout(() => {
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+ this.preStatus = true
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+ }, 600)
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+ },
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+ fail: (e) => {
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+ console.log(e);
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+ }
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+ })
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+ } else if (this.timer) {
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+ clearTimeout(this.timer)
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+ this.timer = null
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+ }
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+ },
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+ mouseenter() {
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+ //#ifdef H5
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+ this.imageList.forEach(v => {
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+ v.disable = false
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+ })
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+ //#endif
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+
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+ },
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+ mouseleave() {
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+ //#ifdef H5
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+ if (this.tempItem) {
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+ this.imageList.forEach(v => {
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+ v.disable = true
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+ v.zIndex = v.index + 9
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+ v.offset = 0
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+ v.moveEnd = false
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+ if (v.id == this.tempItem.id) {
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+ if (this.timer) {
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+ clearTimeout(this.timer)
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+ this.timer = null
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+ }
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+ v.scale = 1
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+ v.opacity = 1
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+ v.x = v.oldX
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+ v.y = v.oldY
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+ this.$nextTick(() => {
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+ v.x = v.absX * this.viewWidth
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+ v.y = v.absY * this.viewWidth
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+ this.tempItem = null
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+ })
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+ }
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+ })
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+ this.changeStatus = true
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+ }
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+ //#endif
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+ },
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+ addImages() {
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+ if (typeof this.addImage === 'function') {
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+ this.addImage.bind(this.$parent)()
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+ } else {
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+ let checkNumber = this.number - this.imageList.length
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+ uni.chooseImage({
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+ count: checkNumber,
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+ sourceType: ['album', 'camera'],
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+ success: res => {
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+ let count = checkNumber <= res.tempFilePaths.length ? checkNumber : res
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+ .tempFilePaths.length
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+ for (let i = 0; i < count; i++) {
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+ this.addProperties(res.tempFilePaths[i])
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+ }
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+ this.sortList()
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+ }
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+ })
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+ }
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+ },
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+ delImages(item, index) {
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+ if (typeof this.delImage === 'function') {
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+ this.delImage.bind(this.$parent)(() => {
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+ this.delImageHandle(item, index)
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+ })
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+ } else {
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+ this.delImageHandle(item, index)
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+ }
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+ },
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+ delImageHandle(item, index) {
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+ this.imageList.splice(index, 1)
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+ for (let obj of this.imageList) {
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+ if (obj.index > item.index) {
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+ obj.index -= 1
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+ obj.x = obj.oldX
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+ obj.y = obj.oldY
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+ obj.absX = obj.index % this.colsValue
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+ obj.absY = Math.floor(obj.index / this.colsValue)
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+ this.$nextTick(() => {
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+ obj.x = obj.absX * this.viewWidth
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+ obj.y = obj.absY * this.viewWidth
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|
|
+ })
|
|
|
+ }
|
|
|
+ }
|
|
|
+ this.add.x = (this.imageList.length % this.colsValue) * this.viewWidth + 'px'
|
|
|
+ this.add.y = Math.floor(this.imageList.length / this.colsValue) * this.viewWidth + 'px'
|
|
|
+ this.sortList()
|
|
|
+ },
|
|
|
+ delImageMp(item, index) {
|
|
|
+ //#ifdef MP
|
|
|
+ this.delImages(item, index)
|
|
|
+ //#endif
|
|
|
+ },
|
|
|
+ sortList() {
|
|
|
+ console.log('sortList');
|
|
|
+ const result = []
|
|
|
+ let source = this.value
|
|
|
+ // #ifdef VUE3
|
|
|
+ source = this.modelValue
|
|
|
+ // #endif
|
|
|
+
|
|
|
+ let list = this.imageList.slice()
|
|
|
+ list.sort((a, b) => {
|
|
|
+ return a.index - b.index
|
|
|
+ })
|
|
|
+ for (let s of list) {
|
|
|
+ let item = source.find(d => this.getSrc(d) == s.src)
|
|
|
+ if (item) {
|
|
|
+ result.push(item)
|
|
|
+ } else {
|
|
|
+ if (this.keyName !== null) {
|
|
|
+ result.push({
|
|
|
+ [this.keyName]: s.src
|
|
|
+ })
|
|
|
+ } else {
|
|
|
+ result.push(s.src)
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ this.$emit("input", result);
|
|
|
+ this.$emit("update:modelValue", result);
|
|
|
+ },
|
|
|
+ addProperties(item) {
|
|
|
+ console.log(item);
|
|
|
+ let absX = this.imageList.length % this.colsValue
|
|
|
+ let absY = Math.floor(this.imageList.length / this.colsValue)
|
|
|
+ let x = absX * this.viewWidth
|
|
|
+ let y = absY * this.viewWidth
|
|
|
+ this.imageList.push({
|
|
|
+ src: item,
|
|
|
+ x,
|
|
|
+ y,
|
|
|
+ oldX: x,
|
|
|
+ oldY: y,
|
|
|
+ absX,
|
|
|
+ absY,
|
|
|
+ scale: 1,
|
|
|
+ zIndex: 9,
|
|
|
+ opacity: 1,
|
|
|
+ index: this.imageList.length,
|
|
|
+ id: this.guid(16),
|
|
|
+ disable: false,
|
|
|
+ offset: 0,
|
|
|
+ moveEnd: false
|
|
|
+ })
|
|
|
+ this.add.x = (this.imageList.length % this.colsValue) * this.viewWidth + 'px'
|
|
|
+ this.add.y = Math.floor(this.imageList.length / this.colsValue) * this.viewWidth + 'px'
|
|
|
+ },
|
|
|
+ nothing() {},
|
|
|
+ rpx2px(v) {
|
|
|
+ return this.width * v / 750
|
|
|
+ },
|
|
|
+ guid(len = 32) {
|
|
|
+ const chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('')
|
|
|
+ const uuid = []
|
|
|
+ const radix = chars.length
|
|
|
+ for (let i = 0; i < len; i++) uuid[i] = chars[0 | Math.random() * radix]
|
|
|
+ uuid.shift()
|
|
|
+ return `u${uuid.join('')}`
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+</script>
|
|
|
+
|
|
|
+<style lang="scss" scoped>
|
|
|
+ .drag-img {
|
|
|
+ .drag-img-area {
|
|
|
+ width: 100%;
|
|
|
+
|
|
|
+ .drag-img-area-view {
|
|
|
+ display: flex;
|
|
|
+ justify-content: center;
|
|
|
+ align-items: center;
|
|
|
+
|
|
|
+ .drag-img-area-view-image {
|
|
|
+ position: relative;
|
|
|
+ overflow: hidden;
|
|
|
+
|
|
|
+ .drag-img-area-view-image-img {
|
|
|
+ width: 100%;
|
|
|
+ height: 100%;
|
|
|
+ }
|
|
|
+
|
|
|
+ .drag-img-area-view-image-del {
|
|
|
+ position: absolute;
|
|
|
+ top: 0rpx;
|
|
|
+ right: 0rpx;
|
|
|
+ padding: 0 0 20rpx 20rpx;
|
|
|
+
|
|
|
+ &>.del-view {
|
|
|
+ width: 36rpx;
|
|
|
+ height: 36rpx;
|
|
|
+ // background-color: rgba(0, 0, 0, 0.4);
|
|
|
+ border-radius: 0 0 0 10rpx;
|
|
|
+ display: flex;
|
|
|
+ justify-content: center;
|
|
|
+ align-items: center;
|
|
|
+
|
|
|
+ &>.del-img {
|
|
|
+ z-index: 9000;
|
|
|
+ width: 30rpx;
|
|
|
+ height: 30rpx;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ .drag-img-area-view-add {
|
|
|
+ position: absolute;
|
|
|
+ display: flex;
|
|
|
+ justify-content: center;
|
|
|
+ align-items: center;
|
|
|
+
|
|
|
+ &>.add-view {
|
|
|
+ display: flex;
|
|
|
+ justify-content: center;
|
|
|
+ align-items: center;
|
|
|
+ background-color: #eeeeee;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+</style>
|