205 lines
5.7 KiB
Plaintext
205 lines
5.7 KiB
Plaintext
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/**
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* 监听页面内值的变化,主要用于动态开关swipe-action
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* @param {Object} newValue
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* @param {Object} oldValue
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* @param {Object} ownerInstance
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* @param {Object} instance
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*/
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function sizeReady(newValue, oldValue, ownerInstance, instance) {
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var state = instance.getState()
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state.position = JSON.parse(newValue)
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if (!state.position || state.position.length === 0) return
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var show = state.position[0].show
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state.left = state.left || state.position[0].left;
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// 通过用户变量,开启或关闭
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if (show) {
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openState(true, instance, ownerInstance)
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} else {
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openState(false, instance, ownerInstance)
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}
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}
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/**
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* 开始触摸操作
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* @param {Object} e
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* @param {Object} ins
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*/
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function touchstart(e, ins) {
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var instance = e.instance;
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var state = instance.getState();
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var pageX = e.touches[0].pageX;
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// 开始触摸时移除动画类
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instance.removeClass('ani');
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var owner = ins.selectAllComponents('.button-hock')
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for (var i = 0; i < owner.length; i++) {
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owner[i].removeClass('ani');
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}
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// state.position = JSON.parse(instance.getDataset().position);
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state.left = state.left || state.position[0].left;
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// 获取最终按钮组的宽度
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state.width = pageX - state.left;
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ins.callMethod('closeSwipe')
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}
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/**
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* 开始滑动操作
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* @param {Object} e
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* @param {Object} ownerInstance
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*/
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function touchmove(e, ownerInstance) {
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var instance = e.instance;
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var disabled = instance.getDataset().disabled
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var state = instance.getState()
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// fix by mehaotian, TODO 兼容 app-vue 获取dataset为字符串 , h5 获取 为 undefined 的问题,待框架修复
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disabled = (typeof(disabled) === 'string' ? JSON.parse(disabled) : disabled) || false;
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if (disabled) return
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var pageX = e.touches[0].pageX;
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move(pageX - state.width, instance, ownerInstance)
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}
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/**
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* 结束触摸操作
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* @param {Object} e
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* @param {Object} ownerInstance
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*/
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function touchend(e, ownerInstance) {
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var instance = e.instance;
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var disabled = instance.getDataset().disabled
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var state = instance.getState()
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// fix by mehaotian, TODO 兼容 app-vue 获取dataset为字符串 , h5 获取 为 undefined 的问题,待框架修复
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disabled = (typeof(disabled) === 'string' ? JSON.parse(disabled) : disabled) || false;
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if (disabled) return
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// 滑动过程中触摸结束,通过阙值判断是开启还是关闭
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// fixed by mehaotian 定时器解决点击按钮,touchend 触发比 click 事件时机早的问题 ,主要是 ios13
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moveDirection(state.left, -40, instance, ownerInstance)
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}
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/**
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* 设置移动距离
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* @param {Object} value
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* @param {Object} instance
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* @param {Object} ownerInstance
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*/
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function move(value, instance, ownerInstance) {
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var state = instance.getState()
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// 获取可滑动范围
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var x = Math.max(-state.position[1].width, Math.min((value), 0));
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state.left = x;
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instance.setStyle({
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transform: 'translateX(' + x + 'px)',
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'-webkit-transform': 'translateX(' + x + 'px)'
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})
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// 折叠按钮动画
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buttonFold(x, instance, ownerInstance)
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}
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/**
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* 移动方向判断
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* @param {Object} left
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* @param {Object} value
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* @param {Object} ownerInstance
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* @param {Object} ins
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*/
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function moveDirection(left, value, ins, ownerInstance) {
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var state = ins.getState()
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var position = state.position
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var isopen = state.isopen
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if (!position[1].width) {
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openState(false, ins, ownerInstance)
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return
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}
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// 如果已经是打开状态,进行判断是否关闭,还是保留打开状态
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if (isopen) {
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if (-left <= position[1].width) {
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openState(false, ins, ownerInstance)
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} else {
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openState(true, ins, ownerInstance)
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}
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return
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}
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// 如果是关闭状态,进行判断是否打开,还是保留关闭状态
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if (left <= value) {
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openState(true, ins, ownerInstance)
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} else {
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openState(false, ins, ownerInstance)
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}
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}
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/**
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* 设置按钮移动距离
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* @param {Object} value
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* @param {Object} instance
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* @param {Object} ownerInstance
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*/
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function buttonFold(value, instance, ownerInstance) {
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var ins = ownerInstance.selectAllComponents('.button-hock');
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var state = instance.getState();
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var position = state.position;
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var arr = [];
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var w = 0;
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for (var i = 0; i < ins.length; i++) {
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if (!ins[i].getDataset().button) return
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var btnData = JSON.parse(ins[i].getDataset().button)
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// fix by mehaotian TODO 在 app-vue 中,字符串转对象,需要转两次,这里先这么兼容
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if (typeof(btnData) === 'string') {
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btnData = JSON.parse(btnData)
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}
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var button = btnData[i] && btnData[i].width || 0
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w += button
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arr.push(-w)
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// 动态计算按钮组每个按钮的折叠动画移动距离
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var distance = arr[i - 1] + value * (arr[i - 1] / position[1].width)
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if (i != 0) {
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ins[i].setStyle({
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transform: 'translateX(' + distance + 'px)',
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})
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}
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}
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}
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/**
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* 开启状态
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* @param {Boolean} type
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* @param {Object} ins
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* @param {Object} ownerInstance
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*/
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function openState(type, ins, ownerInstance) {
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var state = ins.getState()
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var position = state.position
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if (state.isopen === undefined) {
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state.isopen = false
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}
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// 只有状态有改变才会通知页面改变状态
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if (state.isopen !== type) {
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// 通知页面,已经打开
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ownerInstance.callMethod('change', {
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open: type
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})
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}
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// 设置打开和移动状态
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state.isopen = type
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// 添加动画类
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ins.addClass('ani');
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var owner = ownerInstance.selectAllComponents('.button-hock')
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for (var i = 0; i < owner.length; i++) {
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owner[i].addClass('ani');
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}
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// 设置最终移动位置
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move(type ? -position[1].width : 0, ins, ownerInstance)
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}
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module.exports = {
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sizeReady: sizeReady,
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touchstart: touchstart,
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touchmove: touchmove,
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touchend: touchend
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}
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