diff --git a/uni_modules/uni-swipe-action/components/uni-swipe-action-item/render.js b/uni_modules/uni-swipe-action/components/uni-swipe-action-item/render.js new file mode 100644 index 0000000..5b3fe17 --- /dev/null +++ b/uni_modules/uni-swipe-action/components/uni-swipe-action-item/render.js @@ -0,0 +1,270 @@ +const MIN_DISTANCE = 10; +export default { + showWatch(newVal, oldVal, ownerInstance, instance, self) { + var state = self.state + var $el = ownerInstance.$el || ownerInstance.$vm && ownerInstance.$vm.$el + if (!$el) return + this.getDom(instance, ownerInstance, self) + if (newVal && newVal !== 'none') { + this.openState(newVal, instance, ownerInstance, self) + return + } + + if (state.left) { + this.openState('none', instance, ownerInstance, self) + } + this.resetTouchStatus(instance, self) + }, + + /** + * 开始触摸操作 + * @param {Object} e + * @param {Object} ins + */ + touchstart(e, ownerInstance, self) { + let instance = e.instance; + let disabled = instance.getDataset().disabled + let state = self.state; + this.getDom(instance, ownerInstance, self) + // 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 = this.getDisabledType(disabled) + if (disabled) return + // 开始触摸时移除动画类 + instance.requestAnimationFrame(function() { + instance.removeClass('ani'); + ownerInstance.callMethod('closeSwipe'); + }) + + // 记录上次的位置 + state.x = state.left || 0 + // 计算滑动开始位置 + this.stopTouchStart(e, ownerInstance, self) + }, + + /** + * 开始滑动操作 + * @param {Object} e + * @param {Object} ownerInstance + */ + touchmove(e, ownerInstance, self) { + let instance = e.instance; + // 删除之后已经那不到实例了 + if (!instance) return; + let disabled = instance.getDataset().disabled + let state = self.state + // 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 = this.getDisabledType(disabled) + if (disabled) return + // 是否可以滑动页面 + this.stopTouchMove(e, self); + if (state.direction !== 'horizontal') { + return; + } + if (e.preventDefault) { + // 阻止页面滚动 + e.preventDefault() + } + let x = state.x + state.deltaX + this.move(x, instance, ownerInstance, self) + }, + + /** + * 结束触摸操作 + * @param {Object} e + * @param {Object} ownerInstance + */ + touchend(e, ownerInstance, self) { + let instance = e.instance; + let disabled = instance.getDataset().disabled + let state = self.state + // 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 = this.getDisabledType(disabled) + + 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 + this.moveDirection(state.left, instance, ownerInstance, self) + + }, + + /** + * 设置移动距离 + * @param {Object} value + * @param {Object} instance + * @param {Object} ownerInstance + */ + move(value, instance, ownerInstance, self) { + value = value || 0 + let state = self.state + let leftWidth = state.leftWidth + let rightWidth = state.rightWidth + // 获取可滑动范围 + state.left = this.range(value, -rightWidth, leftWidth); + instance.requestAnimationFrame(function() { + instance.setStyle({ + transform: 'translateX(' + state.left + 'px)', + '-webkit-transform': 'translateX(' + state.left + 'px)' + }) + }) + + }, + + /** + * 获取元素信息 + * @param {Object} instance + * @param {Object} ownerInstance + */ + getDom(instance, ownerInstance, self) { + var state = self.state + var $el = ownerInstance.$el || ownerInstance.$vm && ownerInstance.$vm.$el + var leftDom = $el.querySelector('.button-group--left') + var rightDom = $el.querySelector('.button-group--right') + + state.leftWidth = leftDom.offsetWidth || 0 + state.rightWidth = rightDom.offsetWidth || 0 + state.threshold = instance.getDataset().threshold + }, + + getDisabledType(value) { + return (typeof(value) === 'string' ? JSON.parse(value) : value) || false; + }, + + /** + * 获取范围 + * @param {Object} num + * @param {Object} min + * @param {Object} max + */ + 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 + */ + moveDirection(left, ins, ownerInstance, self) { + var state = self.state + 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) { + this.openState('none', ins, ownerInstance, self) + return + } + if ((isopen === 'none' && rightWidth > 0 && -left > threshold) || (isopen !== 'none' && rightWidth > 0 && + rightWidth + + left < threshold)) { + // right + this.openState('right', ins, ownerInstance, self) + } else if ((isopen === 'none' && leftWidth > 0 && left > threshold) || (isopen !== 'none' && leftWidth > 0 && + leftWidth - left < threshold)) { + // left + this.openState('left', ins, ownerInstance, self) + } else { + // default + this.openState('none', ins, ownerInstance, self) + } + }, + + + /** + * 开启状态 + * @param {Boolean} type + * @param {Object} ins + * @param {Object} ownerInstance + */ + openState(type, ins, ownerInstance, self) { + let state = self.state + let leftWidth = state.leftWidth + let rightWidth = state.rightWidth + let 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(() => { + ins.addClass('ani'); + this.move(left, ins, ownerInstance, self) + }) + }, + + + 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 + */ + resetTouchStatus(instance, self) { + let state = self.state; + 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 + */ + stopTouchStart(event, ownerInstance, self) { + let instance = event.instance; + let state = self.state + this.resetTouchStatus(instance, self); + 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 + */ + stopTouchMove(event, self) { + let instance = event.instance; + let state = self.state; + let touch = event.touches[0]; + + state.deltaX = touch.clientX - state.startX; + state.deltaY = touch.clientY - state.startY; + state.offsetY = Math.abs(state.deltaY); + state.offsetX = Math.abs(state.deltaX); + state.direction = state.direction || this.getDirection(state.offsetX, state.offsetY); + } +}