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458 lines
12 KiB
458 lines
12 KiB
<template> |
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<!-- 多图上传支持拖拽排序 --> |
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<view class="con"> |
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<movable-area class="area" :style="{ height: areaHeight }" @mouseenter="mouseenter" @mouseleave="mouseleave"> |
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<block v-for="(item, index) in imageList" :key="item.id"> |
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<!-- <movable-view class="view" :x="item.x" :y="item.y" direction="all" :damping="40" :disabled="item.disable" @change="onChange($event, item)" |
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@touchstart="touchstart(item)" @mousedown="touchstart(item)" @touchend="touchend(item)" @mouseup="touchend(item)" --> |
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<movable-view class="view" :x="item.x" :y="item.y" :damping="40" :disabled="item.disable" @change="onChange($event, item)" |
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@touchstart="touchstart(item)" @mousedown="touchstart(item)" @touchend="touchend(item)" @mouseup="touchend(item)" |
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:style="{ width: viewWidth + 'px', height: viewWidth + 'px', 'z-index': item.zIndex, opacity: item.opacity }"> |
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<view class="area-con" :style="{ width: childWidth, height: childWidth, transform: 'scale(' + item.scale + ')' }"> |
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<image class="pre-image" :src="item.src" mode="aspectFill"></image> |
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<view class="del-con" v-if="select" @click="delImage(item, index)" @touchstart.stop="delImageMp(item, index)" @touchend.stop="nothing()" |
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@mousedown.stop="nothing()" @mouseup.stop="nothing()"> |
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<view class="del-wrap"> |
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<image class="del-image" src="https://h5.canmoujiang.com/img/20210805/1d079f80af6546be98909c6187f5def3.png"></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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</block> |
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<view class="add" v-if="imageList.length < number && select" :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-wrap" :style="{ width: childWidth, height: childWidth }"> |
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<image style="width: 192rpx;height: 192rpx;" src="https://h5.canmoujiang.com/img/20210805/1d079f80af6546be98909c6187f5def3.png"></image> |
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</view> |
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</view> |
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</movable-area> |
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</view> |
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</template> |
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<script> |
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import configdata from '../../common/config.js'; |
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export default { |
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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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} |
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}, |
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props: { |
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// 返回排序后图片 |
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list: { |
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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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// 选择图片数量限制 |
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number: { |
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type: Number, |
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default: 5 |
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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: { |
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type: Number, |
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default: 230 |
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}, |
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// 图片列数（cols > 0 则 imageWidth 无效） |
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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（需配合 @aaddImage 事件使用） |
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custom: { |
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type: Boolean, |
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default: false |
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}, |
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select: { |
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type: Boolean, |
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default: true |
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} |
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}, |
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computed: { |
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areaHeight() { |
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if (this.imageList.length < this.number) { |
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return Math.ceil((this.imageList.length + 1) / this.colsValue) * this.viewWidth + 'px' |
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} else { |
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return Math.ceil(this.imageList.length / this.colsValue) * this.viewWidth + 'px' |
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} |
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}, |
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childWidth() { |
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return this.viewWidth - this.rpx2px(this.padding) * 2 + 'px' |
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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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this.viewWidth = this.rpx2px(this.imageWidth) |
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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('.area').boundingClientRect(data => { |
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this.colsValue = Math.floor(data.width / this.viewWidth) |
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if (this.cols > 0) { |
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this.colsValue = this.cols |
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this.viewWidth = data.width / this.cols |
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} |
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for (let item of this.list) { |
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this.addProperties(item) |
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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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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 - item.absY * |
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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.$nextTick(() => { |
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obj.x = obj.absX * this.viewWidth |
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obj.y = obj.absY * this.viewWidth |
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}) |
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}, 0) |
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} |
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} |
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item.index = index |
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item.absX = x |
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item.absY = y |
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this.sortList() |
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} |
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} |
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}, |
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change(obj, i) { |
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obj.index += i |
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obj.offset = 0 |
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obj.x = obj.oldX |
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obj.y = obj.oldY |
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obj.absX = obj.index % this.colsValue |
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obj.absY = Math.floor(obj.index / this.colsValue) |
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setTimeout(() => { |
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this.$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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}, 0) |
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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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let src = this.list.findIndex(v => v === item.src) |
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uni.previewImage({ |
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urls: this.list, |
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current: 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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}) |
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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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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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console.log('addImages') |
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if (this.custom) { |
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this.$emit('addImage') |
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} else { |
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let checkNumber = this.number - this.imageList.length |
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uni.chooseImage({ |
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count: checkNumber, |
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sourceType: ['album', 'camera'], |
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success: res => { |
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let count = checkNumber <= res.tempFilePaths.length ? checkNumber : res.tempFilePaths.length |
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for (let i = 0; i < count; i++) { |
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this.$queue.showLoading("上传中..."); |
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uni.uploadFile({ // 上传接口 |
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url: this.config("APIHOST1") + '/alioss/upload', //真实的接口地址 |
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filePath: res.tempFilePaths[i], |
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name: 'file', |
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success: (uploadFileRes) => { |
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// this.addProperties(JSON.parse(uploadFileRes.data).data.src) //列表接口 |
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this.addProperties(JSON.parse(uploadFileRes.data).data) |
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uni.hideLoading(); |
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} |
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}); |
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} |
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} |
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}) |
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} |
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}, |
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config: function(name) { |
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var info = null; |
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if (name) { |
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var name2 = name.split("."); //字符分割 |
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if (name2.length > 1) { |
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info = configdata[name2[0]][name2[1]] || null; |
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} else { |
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info = configdata[name] || null; |
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} |
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if (info == null) { |
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let web_config = cache.get("web_config"); |
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if (web_config) { |
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if (name2.length > 1) { |
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info = web_config[name2[0]][name2[1]] || null; |
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} else { |
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info = web_config[name] || null; |
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} |
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} |
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} |
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} |
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return info; |
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}, |
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addImage(image) { |
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this.addProperties(image) |
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}, |
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delImage(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.$nextTick(() => { |
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obj.x = obj.absX * this.viewWidth |
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obj.y = obj.absY * this.viewWidth |
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}) |
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} |
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} |
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this.add.x = (this.imageList.length % this.colsValue) * this.viewWidth + 'px' |
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this.add.y = Math.floor(this.imageList.length / this.colsValue) * this.viewWidth + 'px' |
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this.sortList() |
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}, |
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delImageMp(item, index) { |
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//#ifdef MP |
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this.delImage(item, index) |
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//#endif |
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}, |
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sortList() { |
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let list = this.imageList.slice() |
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console.log('获取到上传图片的列表', this.imageList) |
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list.sort((a, b) => { |
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return a.index - b.index |
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}) |
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for (let i = 0; i < list.length; i++) { |
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list[i] = list[i].src |
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} |
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console.log('list', list) |
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this.$emit('update:list', list) |
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}, |
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addProperties(item) { |
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let absX = this.imageList.length % this.colsValue |
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let absY = Math.floor(this.imageList.length / this.colsValue) |
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let x = absX * this.viewWidth |
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let y = absY * this.viewWidth |
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this.imageList.push({ |
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src: item, |
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x, |
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y, |
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oldX: x, |
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oldY: y, |
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absX, |
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absY, |
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scale: 1, |
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zIndex: 9, |
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opacity: 1, |
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index: this.imageList.length, |
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id: this.guid(), |
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disable: false, |
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offset: 0, |
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moveEnd: false |
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}) |
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this.add.x = (this.imageList.length % this.colsValue) * this.viewWidth + 'px' |
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this.add.y = Math.floor(this.imageList.length / this.colsValue) * this.viewWidth + 'px' |
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this.sortList() |
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}, |
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nothing() {}, |
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rpx2px(v) { |
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return this.width * v / 750 |
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}, |
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guid() { |
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function S4() { |
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return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1); |
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} |
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return (S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4() + S4() + S4()); |
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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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.con { |
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|
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// padding: 30rpx; |
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.area { |
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width: 100%; |
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.view { |
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display: flex; |
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justify-content: center; |
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align-items: center; |
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.area-con { |
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position: relative; |
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.pre-image { |
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width: 100%; |
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height: 100%; |
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} |
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.del-con { |
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position: absolute; |
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top: -8rpx; |
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right: -4rpx; |
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padding: 0 0 20rpx 20rpx; |
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.del-wrap { |
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width: 36rpx; |
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height: 36rpx; |
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background-color: #ff0000; |
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border-radius: 50%; |
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display: flex; |
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justify-content: center; |
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align-items: center; |
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.del-image { |
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width: 20rpx; |
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height: 20rpx; |
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} |
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} |
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} |
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} |
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} |
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.add { |
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position: absolute; |
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display: flex; |
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justify-content: center; |
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align-items: center; |
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.add-wrap { |
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display: flex; |
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justify-content: center; |
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align-items: center; |
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background-color: #FFFFFF; |
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} |
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} |
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} |
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} |
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</style>
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