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319
im-uniapp/components/zmm-upload-image/zmm-upload-image-drag.vue
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319
im-uniapp/components/zmm-upload-image/zmm-upload-image-drag.vue
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<template>
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<view @touchmove.stop.prevent="moveHandle" class="moveWrap">
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<movable-area class="movarea" ref="areaBox" id="areaBox" :style="{height:imgSize*rowNum +200+ 'rpx'}">
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<view class="imgBox" :style="{height:imgSize*rowNum + 'rpx'}">
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<view :id="'img' + idx" class="imgItem" v-for="(item, idx) in imgList" :key="idx"
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:style="{transition:addJump?' all 0.5s':'',opacity:idx===selectIdx?'0':'1', width: imgSize + 'rpx', height: imgSize + 'rpx', borderRadius:imgRadius+'rpx',padding:imgPadding+'rpx',left:(hoverImgIdx==='img'+idx?curHoverBoxMove.x+'rpx':''),top:(hoverImgIdx==='img'+idx?curHoverBoxMove.y+'rpx':'')}">
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<view class="imgItem-img" @tap="itemclick(item,idx)" @touchstart="tstr(idx, $event)" @touchmove="tsmo" @touchend="toend">
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<image v-if="item.videoUrl" class="imgItem-play" src="../../static/img/bf.png" mode="aspectFill"></image>
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<image :style="{borderRadius:imgRadius+'rpx' }" :ref="'img' + idx" :src="item.url" mode="aspectFill"></image>
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</view>
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</view>
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<slot></slot>
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</view>
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<movable-view v-if="moveSrc" :animation="false" class="moveV" :x="x" :y="y" direction="all"
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@change="onChange"
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:style="{ width: imgSize + 'rpx', height: imgSize + 'rpx',padding:imgPadding+'rpx' }">
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<image v-if="moveSrc.videoUrl" class="imgItem-play" src="../../static/img/bf.png" mode="aspectFill"></image>
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<image :style="{borderRadius:imgRadius+'rpx' }" :src="moveSrc.url" mode="aspectFill"></image>
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</movable-view>
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</movable-area>
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<view v-if="showDelete">
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<view class="delete" :class="{'deleteType':deleteType}">
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<text v-if="deleteType">松开删除</text>
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<text v-else>拖动到此处删除</text>
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</view>
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</view>
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</view>
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</template>
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<script>
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export default {
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emits:['itemclick','update:imgList','deleteImage','change','moveEndList'],
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props: {
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//图片列表
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imgList: {
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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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//图片大小
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imgSize: {
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type: Number
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},
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//图片间距
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imgPadding: {
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type: Number
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},
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//图片行数
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rowNum: {
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type: Number
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},
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//图片圆角
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imgRadius: {
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type: Number
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}
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},
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components: {},
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data() {
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return {
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showDelete:false,
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touchobj:null,
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deleteType:false,
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addJump:false,
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areaBoxInfo: {},
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x: 0,
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y: 0,
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selectIdx: null,
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moveSrc: null,
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areaBoxTop: 0,
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hoverImgIdx: '',
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inBoxXY: {},
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curHoverBoxMove: {
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x: 0,
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y: 0
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}
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};
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},
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watch: {
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hoverImgIdx(e) {
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let idx = this.selectIdx
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let hoverIdx = parseInt(e.split('img')[1]);
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if (this.imgList[idx]) {
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let selectRow = this.imgList[idx].y / uni.upx2px(this.imgSize)
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let selectColum= this.imgList[idx].x / uni.upx2px(this.imgSize)
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let hoverRow = this.imgList[hoverIdx].y / uni.upx2px(this.imgSize)
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let hoverColum= this.imgList[hoverIdx].x / uni.upx2px(this.imgSize)
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let left = -(this.imgSize * (hoverColum - selectColum))
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let top= -(this.imgSize * (hoverRow - selectRow))
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this.curHoverBoxMove = {
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x: left,
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y: top,
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}
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}
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},
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// imgList(e){
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// console.log('变化了item')
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// this.$nextTick(()=>{
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// this.setImgXy()
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// })
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// }
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imgList: {
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deep: true,//深度监听可见听对象中的元素变化例:obj.id
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immediate:false,//在进入页面时，第一次绑定值，不会立刻执行监听，只有数据发生改变才会执行handler中的操作
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handler(val) {//watch事件
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// console.log('变化了item')
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this.$nextTick(()=>{
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this.setImgXy()
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})
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}
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}
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},
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methods: {
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itemclick(e,i){
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this.$emit('itemclick',e,i)
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},
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moveHandle() {
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return;
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},
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deleteImage: function(e) {
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var index = e
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var deletedImage = this.imgList[index]
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this.imgList.splice(index, 1)
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this.$emit('deleteImage', deletedImage)
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},
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onChange(e) {
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var boxHeight=this.imgSize * this.rowNum
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var deleteHeight=(boxHeight-80)/2
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if(e.detail.y>deleteHeight){
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this.deleteType=true
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}else{
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this.deleteType=false
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}
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this.showDelete=true
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this.$emit('change',e)
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},
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tstr(e, s) {
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this.touchobj=this.imgList[e]
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this.addJump=true
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this.getDomInfo('areaBox', info => {
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this.areaBoxInfo = info;
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//获取拖拽区域的上边距和下边距
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let areaBoxTop = this.areaBoxInfo.top;
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let areaBoxLeft = this.areaBoxInfo.left;
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// 设置可移动方块的初始位置为当前所选中图片的位置坐标
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this.x = this.imgList[e].x;
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this.y = this.imgList[e].y;
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//显示可移动方块
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this.moveSrc = this.imgList[e];
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//保存当前所选择的图片索引
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this.selectIdx = e;
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var x = s.changedTouches[0].clientX - areaBoxLeft;
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var y = s.changedTouches[0].clientY - areaBoxTop;
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// 保存鼠标在图片内的坐标
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this.inBoxXY = {
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x: x - this.imgList[e].x,
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y: y - this.imgList[e].y,
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}
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});
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},
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tsmo(e) {
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let areaBoxTop = this.areaBoxInfo.top;
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let areaBoxLeft = this.areaBoxInfo.left;
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let imgSize = this.imgSize;
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//重置为以拖拽盒子左上角为坐标原点
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var x = e.changedTouches[0].clientX - areaBoxLeft;
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var y = e.changedTouches[0].clientY - areaBoxTop;
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this.x = x - this.inBoxXY.x;
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this.y = y - this.inBoxXY.y;
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this.imgList.forEach((item, idx) => {
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if (x > item.x && x < item.x + imgSize && y > item.y && y < item.y + imgSize) {
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this.hoverImgIdx = 'img' + idx
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}
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});
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},
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toend(e) {
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this.addJump=false
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if(this.deleteType){
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this.deleteImage(this.selectIdx)
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}else{
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// 移动结束隐藏可移动方块
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let beforeIdx = this.selectIdx;
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let afterIdx = parseInt(this.hoverImgIdx.split('img')[1]);
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if (this.hoverImgIdx !== '' && beforeIdx !== afterIdx) {
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this.imgList[beforeIdx] = this.imgList[afterIdx];
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this.imgList[afterIdx] = this.moveSrc;
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this.$emit('moveEndList', this.imgList);
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}
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}
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this.moveSrc = '';
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this.hoverImgIdx = ''
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this.selectIdx = null
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this.deleteType=false
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this.showDelete=false
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this.$nextTick(()=>{
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this.setImgXy()
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})
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},
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getDomInfo(id, callBack) {
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const query = uni.createSelectorQuery().in(this);
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query.select('#' + id)
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.boundingClientRect()
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.exec(function(res) {
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callBack(res[0]);
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});
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},
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setImgXy(){//设置每个图片的基础xy轴
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this.getDomInfo('areaBox', info => {
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this.areaBoxInfo = info;
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// 设置区域内所有图片的左上角坐标
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this.imgList.forEach((item, idx) => {
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this.getDomInfo('img' + idx, res => {
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item.x = res.left - info.left;
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});
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this.getDomInfo('img' + idx, res => {
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item.y = res.top - info.top;
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});
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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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this.setImgXy()
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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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.imgItem-play{
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z-index: 1;
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position: absolute;
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left: 50%;
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top: 50%;
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width: 80rpx !important;
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height: 80rpx !important;
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transform: translate(-50%,-50%);
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}
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.movarea {
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width: 100%;
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height: 320rpx;
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display: flex;
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flex-direction: row;
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}
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.imgBox {
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position: relative;
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z-index: 1;
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width: 100%;
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height: 320rpx;
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display: flex;
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flex-direction: row;
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flex-wrap: wrap;
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.imgItem {
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position: relative;
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box-sizing: border-box;
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left: 0;
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top: 0;
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box-sizing: border-box;
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image {
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width: 100%;
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height: 100%;
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// transition: all 0.2s;
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vertical-align: top;
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}
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}
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}
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.moveV {
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opacity: 0.6;
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z-index: 0;
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box-sizing: border-box;
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image {
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width: 100%;
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height: 100%;
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}
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}
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.select {
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opacity: 0;
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}
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.zmm-upload-image-deleteIcon {
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right: 0rpx;
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top: 0rpx;
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position: absolute;
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background-color: rgba(0, 0, 0, 0.3);
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width: 36rpx;
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height: 36rpx;
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text-align: center;
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border-radius: 50%;
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color: white;
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font-size: 30rpx;
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z-index: 2;
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display: flex;flex-direction: row;align-items: center;justify-content: center;
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}
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.delete{
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position: absolute;
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bottom: 0rpx;
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left: 0;
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width: 100%;
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height: 80rpx;
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line-height: 80rpx;
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background: #C04A42;
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text-align: center;
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transition: all 0.3s;
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}
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.delete text{
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color: #fff;
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}
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.deleteType{
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transform: scale(1.1);
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}
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.moveWrap{
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position: relative;
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}
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.imgItem-img{
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width: 100%;
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height: 100%;
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}
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</style>
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