New file |
| | |
| | | var MIN_DISTANCE = 10; |
| | | |
| | | /** |
| | | * 监听页面内值的变化,主要用于动态开关swipe-action |
| | | * @param {Object} newValue |
| | | * @param {Object} oldValue |
| | | * @param {Object} ownerInstance |
| | | * @param {Object} instance |
| | | */ |
| | | function sizeReady(newValue, oldValue, ownerInstance, instance) { |
| | | var state = instance.getState() |
| | | var buttonPositions = JSON.parse(newValue) |
| | | if (!buttonPositions || !buttonPositions.data || buttonPositions.data.length === 0) return |
| | | state.leftWidth = buttonPositions.data[0].width |
| | | state.rightWidth = buttonPositions.data[1].width |
| | | state.threshold = instance.getDataset().threshold |
| | | |
| | | if (buttonPositions.show && buttonPositions.show !== 'none') { |
| | | openState(buttonPositions.show, instance, ownerInstance) |
| | | return |
| | | } |
| | | |
| | | if (state.left) { |
| | | openState('none', instance, ownerInstance) |
| | | } |
| | | resetTouchStatus(instance) |
| | | } |
| | | |
| | | /** |
| | | * 开始触摸操作 |
| | | * @param {Object} e |
| | | * @param {Object} ins |
| | | */ |
| | | function touchstart(e, ins) { |
| | | var instance = e.instance; |
| | | var disabled = instance.getDataset().disabled |
| | | var state = instance.getState(); |
| | | // 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 |
| | | disabled = (typeof(disabled) === 'string' ? JSON.parse(disabled) : disabled) || false; |
| | | if (disabled) return |
| | | // 开始触摸时移除动画类 |
| | | instance.requestAnimationFrame(function(){ |
| | | instance.removeClass('ani'); |
| | | ins.callMethod('closeSwipe'); |
| | | }) |
| | | |
| | | // 记录上次的位置 |
| | | state.x = state.left || 0 |
| | | // 计算滑动开始位置 |
| | | stopTouchStart(e, ins) |
| | | } |
| | | |
| | | /** |
| | | * 开始滑动操作 |
| | | * @param {Object} e |
| | | * @param {Object} ownerInstance |
| | | */ |
| | | function touchmove(e, ownerInstance) { |
| | | |
| | | var instance = e.instance; |
| | | var disabled = instance.getDataset().disabled |
| | | var state = instance.getState() |
| | | // 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 |
| | | disabled = (typeof(disabled) === 'string' ? JSON.parse(disabled) : disabled) || false; |
| | | if (disabled) return |
| | | // 是否可以滑动页面 |
| | | stopTouchMove(e); |
| | | if (state.direction !== 'horizontal') { |
| | | return; |
| | | } |
| | | |
| | | if (e.preventDefault) { |
| | | // 阻止页面滚动 |
| | | e.preventDefault() |
| | | } |
| | | |
| | | move(state.x + state.deltaX, instance, ownerInstance) |
| | | } |
| | | |
| | | /** |
| | | * 结束触摸操作 |
| | | * @param {Object} e |
| | | * @param {Object} ownerInstance |
| | | */ |
| | | function touchend(e, ownerInstance) { |
| | | var instance = e.instance; |
| | | var disabled = instance.getDataset().disabled |
| | | var state = instance.getState() |
| | | // 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 |
| | | disabled = (typeof(disabled) === 'string' ? JSON.parse(disabled) : disabled) || false; |
| | | |
| | | if (disabled) return |
| | | // 滑动过程中触摸结束,通过阙值判断是开启还是关闭 |
| | | // 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 |
| | | moveDirection(state.left, instance, ownerInstance) |
| | | |
| | | } |
| | | |
| | | /** |
| | | * 设置移动距离 |
| | | * @param {Object} value |
| | | * @param {Object} instance |
| | | * @param {Object} ownerInstance |
| | | */ |
| | | function move(value, instance, ownerInstance) { |
| | | value = value || 0 |
| | | var state = instance.getState() |
| | | var leftWidth = state.leftWidth |
| | | var rightWidth = state.rightWidth |
| | | // 获取可滑动范围 |
| | | state.left = range(value, -rightWidth, leftWidth); |
| | | instance.requestAnimationFrame(function(){ |
| | | instance.setStyle({ |
| | | transform: 'translateX(' + state.left + 'px)', |
| | | '-webkit-transform': 'translateX(' + state.left + 'px)' |
| | | }) |
| | | }) |
| | | |
| | | } |
| | | |
| | | /** |
| | | * 获取范围 |
| | | * @param {Object} num |
| | | * @param {Object} min |
| | | * @param {Object} max |
| | | */ |
| | | function range(num, min, max) { |
| | | return Math.min(Math.max(num, min), max); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * 移动方向判断 |
| | | * @param {Object} left |
| | | * @param {Object} value |
| | | * @param {Object} ownerInstance |
| | | * @param {Object} ins |
| | | */ |
| | | function moveDirection(left, ins, ownerInstance) { |
| | | var state = ins.getState() |
| | | var threshold = state.threshold |
| | | var position = state.position |
| | | var isopen = state.isopen || 'none' |
| | | var leftWidth = state.leftWidth |
| | | var rightWidth = state.rightWidth |
| | | if (state.deltaX === 0) { |
| | | openState('none', ins, ownerInstance) |
| | | return |
| | | } |
| | | if ((isopen === 'none' && rightWidth > 0 && -left > threshold) || (isopen !== 'none' && rightWidth > 0 && rightWidth + |
| | | left < threshold)) { |
| | | // right |
| | | openState('right', ins, ownerInstance) |
| | | } else if ((isopen === 'none' && leftWidth > 0 && left > threshold) || (isopen !== 'none' && leftWidth > 0 && |
| | | leftWidth - left < threshold)) { |
| | | // left |
| | | openState('left', ins, ownerInstance) |
| | | } else { |
| | | // default |
| | | openState('none', ins, ownerInstance) |
| | | } |
| | | } |
| | | |
| | | |
| | | /** |
| | | * 开启状态 |
| | | * @param {Boolean} type |
| | | * @param {Object} ins |
| | | * @param {Object} ownerInstance |
| | | */ |
| | | function openState(type, ins, ownerInstance) { |
| | | var state = ins.getState() |
| | | var position = state.position |
| | | var leftWidth = state.leftWidth |
| | | var rightWidth = state.rightWidth |
| | | var left = '' |
| | | state.isopen = state.isopen ? state.isopen : 'none' |
| | | switch (type) { |
| | | case "left": |
| | | left = leftWidth |
| | | break |
| | | case "right": |
| | | left = -rightWidth |
| | | break |
| | | default: |
| | | left = 0 |
| | | } |
| | | |
| | | // && !state.throttle |
| | | |
| | | if (state.isopen !== type ) { |
| | | state.throttle = true |
| | | ownerInstance.callMethod('change', { |
| | | open: type |
| | | }) |
| | | |
| | | } |
| | | |
| | | state.isopen = type |
| | | // 添加动画类 |
| | | ins.requestAnimationFrame(function(){ |
| | | ins.addClass('ani'); |
| | | move(left, ins, ownerInstance) |
| | | }) |
| | | // 设置最终移动位置,理论上只要进入到这个函数,肯定是要打开的 |
| | | } |
| | | |
| | | |
| | | function getDirection(x, y) { |
| | | if (x > y && x > MIN_DISTANCE) { |
| | | return 'horizontal'; |
| | | } |
| | | if (y > x && y > MIN_DISTANCE) { |
| | | return 'vertical'; |
| | | } |
| | | return ''; |
| | | } |
| | | |
| | | /** |
| | | * 重置滑动状态 |
| | | * @param {Object} event |
| | | */ |
| | | function resetTouchStatus(instance) { |
| | | var state = instance.getState(); |
| | | state.direction = ''; |
| | | state.deltaX = 0; |
| | | state.deltaY = 0; |
| | | state.offsetX = 0; |
| | | state.offsetY = 0; |
| | | } |
| | | |
| | | /** |
| | | * 设置滑动开始位置 |
| | | * @param {Object} event |
| | | */ |
| | | function stopTouchStart(event) { |
| | | var instance = event.instance; |
| | | var state = instance.getState(); |
| | | resetTouchStatus(instance); |
| | | var touch = event.touches[0]; |
| | | state.startX = touch.clientX; |
| | | state.startY = touch.clientY; |
| | | } |
| | | |
| | | /** |
| | | * 滑动中,是否禁止打开 |
| | | * @param {Object} event |
| | | */ |
| | | function stopTouchMove(event) { |
| | | var instance = event.instance; |
| | | var state = instance.getState(); |
| | | var touch = event.touches[0]; |
| | | state.deltaX = touch.clientX - state.startX; |
| | | state.deltaY = touch.clientY - state.startY; |
| | | state.offsetX = Math.abs(state.deltaX); |
| | | state.offsetY = Math.abs(state.deltaY); |
| | | state.direction = state.direction || getDirection(state.offsetX, state.offsetY); |
| | | } |
| | | |
| | | |
| | | module.exports = { |
| | | sizeReady: sizeReady, |
| | | touchstart: touchstart, |
| | | touchmove: touchmove, |
| | | touchend: touchend |
| | | } |