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90 lines
2.4 KiB
90 lines
2.4 KiB
// pages/topics/common/interactive/common/imageCell/index.js
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Component({
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/**
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* 组件的属性列表
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*/
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properties: {
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topicId: String,
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title: String,
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topicImg: String,
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userIcon: String,
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userName: String,
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time: String,
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commentNum: Number,
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type:String,
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dataIndex: Number,
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isTouchMove: Boolean,
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selectedTitle:Number,
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},
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/**
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* 组件的初始数据
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*/
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data: {
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startX: 0, //开始坐标
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startY: 0
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},
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/**
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* 组件的方法列表
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*/
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methods: {
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onTap() {
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let item = {
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topicId: this.properties.topicId,
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title: this.properties.title,
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topicImg: this.properties.topicImg,
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userIcon: this.properties.userIcon,
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userName: this.properties.userName,
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time: this.properties.time,
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commentNum: this.properties.commentNum,
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type: this.properties.type
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}
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this.triggerEvent('clickListItem', { item: item })
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},
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touchstart: function (e) {
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if(this.properties.selectedTitle === 1){
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//开始触摸时 重置所有删除
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if (this.properties.isTouchMove) {
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this.setData({
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isTouchMove: false
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})
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}
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this.setData({
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startX: e.changedTouches[0].clientX,
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startY: e.changedTouches[0].clientY,
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})
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}
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},
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touchmove: function (e) {
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if (this.properties.selectedTitle === 1) {
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var that = this
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// index = e.currentTarget.dataset.index,//当前索引
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const startX = that.data.startX//开始X坐标
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const startY = that.data.startY//开始Y坐标
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const touchMoveX = e.changedTouches[0].clientX//滑动变化坐标
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const touchMoveY = e.changedTouches[0].clientY//滑动变化坐标
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//获取滑动角度
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const angle = that.angle({ X: startX, Y: startY }, { X: touchMoveX, Y: touchMoveY })
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if (Math.abs(angle) > 30) return;
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if (touchMoveX > startX) //右滑
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that.setData({
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isTouchMove: false
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})
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else //左滑
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that.setData({
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isTouchMove: true
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})
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}
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},
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angle: function (start, end) {
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var _X = end.X - start.X,
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_Y = end.Y - start.Y
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//返回角度 /Math.atan()返回数字的反正切值
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return 360 * Math.atan(_Y / _X) / (2 * Math.PI);
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},
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del: function (e) {
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this.triggerEvent('deleteListItem', { id: e.currentTarget.dataset.id })
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}
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}
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})
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