New file |
| | |
| | | // nvue操作dom的库,用于获取dom的尺寸信息 |
| | | const dom = uni.requireNativePlugin('dom'); |
| | | const bindingX = uni.requireNativePlugin('bindingx'); |
| | | const animation = uni.requireNativePlugin('animation'); |
| | | |
| | | export default { |
| | | data() { |
| | | return { |
| | | // 所有按钮的总宽度 |
| | | buttonsWidth: 0, |
| | | // 是否正在移动中 |
| | | moving: false |
| | | } |
| | | }, |
| | | computed: { |
| | | // 获取过渡时间 |
| | | getDuratin() { |
| | | let duration = String(this.duration) |
| | | // 如果ms为单位,返回ms的数值部分 |
| | | if (duration.indexOf('ms') >= 0) return parseInt(duration) |
| | | // 如果s为单位,为了得到ms的数值,需要乘以1000 |
| | | if (duration.indexOf('s') >= 0) return parseInt(duration) * 1000 |
| | | // 如果值传了数值,且小于30,认为是s单位 |
| | | duration = Number(duration) |
| | | return duration < 30 ? duration * 1000 : duration |
| | | } |
| | | }, |
| | | watch: { |
| | | show(n) { |
| | | if(n) { |
| | | this.moveCellByAnimation('open') |
| | | } else { |
| | | this.moveCellByAnimation('close') |
| | | } |
| | | } |
| | | }, |
| | | mounted() { |
| | | this.initialize() |
| | | }, |
| | | methods: { |
| | | initialize() { |
| | | this.queryRect() |
| | | }, |
| | | // 关闭单元格,用于打开一个,自动关闭其他单元格的场景 |
| | | closeHandler() { |
| | | if(this.status === 'open') { |
| | | // 如果在打开状态下,进行点击的话,直接关闭单元格 |
| | | return this.moveCellByAnimation('close') && this.unbindBindingX() |
| | | } |
| | | }, |
| | | // 点击单元格 |
| | | clickHandler() { |
| | | // 如果在移动中被点击,进行忽略 |
| | | if(this.moving) return |
| | | // 尝试关闭其他打开的单元格 |
| | | this.parent && this.parent.closeOther(this) |
| | | if(this.status === 'open') { |
| | | // 如果在打开状态下,进行点击的话,直接关闭单元格 |
| | | return this.moveCellByAnimation('close') && this.unbindBindingX() |
| | | } |
| | | }, |
| | | // 滑动单元格 |
| | | onTouchstart(e) { |
| | | // 如果当前正在移动中,或者disabled状态,则返回 |
| | | if(this.moving || this.disabled) { |
| | | return this.unbindBindingX() |
| | | } |
| | | if(this.status === 'open') { |
| | | // 如果在打开状态下,进行点击的话,直接关闭单元格 |
| | | return this.moveCellByAnimation('close') && this.unbindBindingX() |
| | | } |
| | | // 特殊情况下,e可能不为一个对象 |
| | | e?.stopPropagation && e.stopPropagation() |
| | | e?.preventDefault && e.preventDefault() |
| | | this.moving = true |
| | | // 获取元素ref |
| | | const content = this.getContentRef() |
| | | let expression = `min(max(${-this.buttonsWidth}, x), 0)` |
| | | // 尝试关闭其他打开的单元格 |
| | | this.parent && this.parent.closeOther(this) |
| | | |
| | | // 阿里为了KPI而开源的BindingX |
| | | this.panEvent = bindingX.bind({ |
| | | anchor: content, |
| | | eventType: 'pan', |
| | | props: [{ |
| | | element: content, |
| | | // 绑定width属性,设置其宽度值 |
| | | property: 'transform.translateX', |
| | | expression |
| | | }] |
| | | }, (res) => { |
| | | this.moving = false |
| | | if (res.state === 'end' || res.state === 'exit') { |
| | | const deltaX = res.deltaX |
| | | if(deltaX <= -this.buttonsWidth || deltaX >= 0) { |
| | | // 如果触摸滑动的过程中,大于单元格的总宽度,或者大于0,意味着已经动过滑动达到了打开或者关闭的状态 |
| | | // 这里直接进行状态的标记 |
| | | this.$nextTick(() => { |
| | | this.status = deltaX <= -this.buttonsWidth ? 'open' : 'close' |
| | | }) |
| | | } else if(Math.abs(deltaX) > uni.$u.getPx(this.threshold)) { |
| | | // 在移动大于阈值、并且小于总按钮宽度时,进行自动打开或者关闭 |
| | | // 移动距离大于0时,意味着需要关闭状态 |
| | | if(Math.abs(deltaX) < this.buttonsWidth) { |
| | | this.moveCellByAnimation(deltaX > 0 ? 'close' : 'open') |
| | | } |
| | | } else { |
| | | // 在小于阈值时,进行关闭操作(如果在打开状态下,将不会执行bindingX) |
| | | this.moveCellByAnimation('close') |
| | | } |
| | | } |
| | | }) |
| | | }, |
| | | // 释放bindingX |
| | | unbindBindingX() { |
| | | // 释放上一次的资源 |
| | | if (this?.panEvent?.token != 0) { |
| | | bindingX.unbind({ |
| | | token: this.panEvent?.token, |
| | | // pan为手势事件 |
| | | eventType: 'pan' |
| | | }) |
| | | } |
| | | }, |
| | | // 查询按钮节点信息 |
| | | queryRect() { |
| | | // 历遍所有按钮数组,通过getRectByDom返回一个promise |
| | | const promiseAll = this.options.map((item, index) => { |
| | | return this.getRectByDom(this.$refs[`u-swipe-action-item__right__button-${index}`][0]) |
| | | }) |
| | | // 通过promise.all方法,让所有按钮的查询结果返回一个数组的形式 |
| | | Promise.all(promiseAll).then(sizes => { |
| | | this.buttons = sizes |
| | | // 计算所有按钮总宽度 |
| | | this.buttonsWidth = sizes.reduce((sum, cur) => sum + cur.width, 0) |
| | | }) |
| | | }, |
| | | // 通过nvue的dom模块,查询节点信息 |
| | | getRectByDom(ref) { |
| | | return new Promise(resolve => { |
| | | dom.getComponentRect(ref, res => { |
| | | resolve(res.size) |
| | | }) |
| | | }) |
| | | }, |
| | | // 移动单元格到左边或者右边尽头 |
| | | moveCellByAnimation(status = 'open') { |
| | | if(this.moving) return |
| | | // 标识当前状态 |
| | | this.moveing = true |
| | | const content = this.getContentRef() |
| | | const x = status === 'open' ? -this.buttonsWidth : 0 |
| | | animation.transition(content, { |
| | | styles: { |
| | | transform: `translateX(${x}px)`, |
| | | }, |
| | | duration: uni.$u.getDuration(this.duration, false), |
| | | timingFunction: 'ease-in-out' |
| | | }, () => { |
| | | this.moving = false |
| | | this.status = status |
| | | this.unbindBindingX() |
| | | }) |
| | | }, |
| | | // 获取元素ref |
| | | getContentRef() { |
| | | return this.$refs['u-swipe-action-item__content'].ref |
| | | }, |
| | | beforeDestroy() { |
| | | this.unbindBindingX() |
| | | } |
| | | } |
| | | } |