256 lines
		
	
	
		
			6.9 KiB
		
	
	
	
		
			Vue
		
	
	
	
		
		
			
		
	
	
			256 lines
		
	
	
		
			6.9 KiB
		
	
	
	
		
			Vue
		
	
	
	
|  | <template> | |||
|  | 	<view class=""> | |||
|  | 		<movable-area class="u-swipe-action" :style="{ backgroundColor: bgColor }"> | |||
|  | 			<movable-view | |||
|  | 				class="u-swipe-view" | |||
|  | 				@change="change" | |||
|  | 				@touchend="touchend" | |||
|  | 				@touchstart="touchstart" | |||
|  | 				direction="horizontal" | |||
|  | 				:disabled="disabled" | |||
|  | 				:x="moveX" | |||
|  | 				:style="{ | |||
|  | 					width: movableViewWidth ? movableViewWidth : '100%' | |||
|  | 				}" | |||
|  | 			> | |||
|  | 				<view | |||
|  | 					class="u-swipe-content" | |||
|  | 					@tap.stop="contentClick" | |||
|  | 				> | |||
|  | 					<slot></slot> | |||
|  | 				</view> | |||
|  | 				<view class="u-swipe-del" v-if="showBtn" @tap.stop="btnClick(index)" :style="[btnStyle(item.style)]" v-for="(item, index) in options" :key="index"> | |||
|  | 					<view class="u-btn-text">{{ item.text }}</view> | |||
|  | 				</view> | |||
|  | 			</movable-view> | |||
|  | 		</movable-area> | |||
|  | 	</view> | |||
|  | </template> | |||
|  | 
 | |||
|  | <script> | |||
|  | /** | |||
|  |  * swipeAction 左滑单元格 | |||
|  |  * @description 该组件一般用于左滑唤出操作菜单的场景,用的最多的是左滑删除操作。 | |||
|  |  * @tutorial https://www.uviewui.com/components/swipeAction.html
 | |||
|  |  * @property {String} bg-color 整个组件背景颜色(默认#ffffff) | |||
|  |  * @property {Array} options 数组形式,可以配置背景颜色和文字 | |||
|  |  * @property {String Number} index 标识符,点击时候用于区分点击了哪一个,用v-for循环时的index即可 | |||
|  |  * @property {String Number} btn-width 按钮宽度,单位rpx(默认180) | |||
|  |  * @property {Boolean} disabled 是否禁止某个swipeAction滑动(默认false) | |||
|  |  * @property {Boolean} show 打开或者关闭某个组件(默认false) | |||
|  |  * @event {Function} click 点击组件时触发 | |||
|  |  * @event {Function} close 组件触发关闭状态时 | |||
|  |  * @event {Function} content-click 点击内容时触发 | |||
|  |  * @event {Function} open 组件触发打开状态时 | |||
|  |  * @example <u-swipe-action btn-text="收藏">...</u-swipe-action> | |||
|  |  */ | |||
|  | export default { | |||
|  | 	name: 'u-swipe-action', | |||
|  | 	props: { | |||
|  | 		// index值,用于得知点击删除的是哪个按钮
 | |||
|  | 		index: { | |||
|  | 			type: [Number, String], | |||
|  | 			default: '' | |||
|  | 		}, | |||
|  | 		// 滑动按钮的宽度,单位为rpx
 | |||
|  | 		btnWidth: { | |||
|  | 			type: [String, Number], | |||
|  | 			default: 180 | |||
|  | 		}, | |||
|  | 		// 是否禁止某个action滑动
 | |||
|  | 		disabled: { | |||
|  | 			type: Boolean, | |||
|  | 			default: false | |||
|  | 		}, | |||
|  | 		// 打开或者关闭组件
 | |||
|  | 		show: { | |||
|  | 			type: Boolean, | |||
|  | 			default: false | |||
|  | 		}, | |||
|  | 		// 组件背景颜色
 | |||
|  | 		bgColor: { | |||
|  | 			type: String, | |||
|  | 			default: '#ffffff' | |||
|  | 		}, | |||
|  | 		// 是否使手机发生短促震动,目前只在iOS的微信小程序有效(2020-05-06)
 | |||
|  | 		vibrateShort: { | |||
|  | 			type: Boolean, | |||
|  | 			default: false | |||
|  | 		}, | |||
|  | 		// 按钮操作参数
 | |||
|  | 		options: { | |||
|  | 			type: Array, | |||
|  | 			default() { | |||
|  | 				return []; | |||
|  | 			} | |||
|  | 		} | |||
|  | 	}, | |||
|  | 	watch: { | |||
|  | 		show: { | |||
|  | 			immediate: true, | |||
|  | 			handler(nVal, oVal) { | |||
|  | 				if (nVal) { | |||
|  | 					this.open(); | |||
|  | 				} else { | |||
|  | 					this.close(); | |||
|  | 				} | |||
|  | 			} | |||
|  | 		} | |||
|  | 	}, | |||
|  | 	data() { | |||
|  | 		return { | |||
|  | 			moveX: 0, // movable-view元素在x轴上需要移动的目标移动距离,用于展开或收起滑动的按钮
 | |||
|  | 			scrollX: 0, // movable-view移动过程中产生的change事件中的x轴移动值
 | |||
|  | 			status: false, // 滑动的状态,表示当前是展开还是关闭按钮的状态
 | |||
|  | 			movableAreaWidth: 0, // 滑动区域
 | |||
|  | 			elId: this.$u.guid(), // id,用于通知另外组件关闭时的识别
 | |||
|  | 			showBtn: false, // 刚开始渲染视图时不显示右边的按钮,避免视图闪动
 | |||
|  | 		}; | |||
|  | 	}, | |||
|  | 	computed: { | |||
|  | 		movableViewWidth() { | |||
|  | 			return this.movableAreaWidth + this.allBtnWidth + 'px'; | |||
|  | 		}, | |||
|  | 		innerBtnWidth() { | |||
|  | 			return uni.upx2px(this.btnWidth); | |||
|  | 		}, | |||
|  | 		allBtnWidth() { | |||
|  | 			return uni.upx2px(this.btnWidth) * this.options.length; | |||
|  | 		}, | |||
|  | 		btnStyle() { | |||
|  | 			return style => { | |||
|  | 				let css = {}; | |||
|  | 				style.width = this.btnWidth + 'rpx'; | |||
|  | 				return style; | |||
|  | 			}; | |||
|  | 		} | |||
|  | 	}, | |||
|  | 	mounted() { | |||
|  | 		this.getActionRect(); | |||
|  | 	}, | |||
|  | 	methods: { | |||
|  | 		// 点击按钮
 | |||
|  | 		btnClick(index) { | |||
|  | 			this.status = false; | |||
|  | 			// this.index为点击的几个组件,index为点击某个组件的第几个按钮(options数组的索引)
 | |||
|  | 			this.$emit('click', this.index, index); | |||
|  | 		}, | |||
|  | 		// movable-view元素移动事件
 | |||
|  | 		change(e) { | |||
|  | 			this.scrollX = e.detail.x; | |||
|  | 		}, | |||
|  | 		// 关闭按钮状态
 | |||
|  | 		close() { | |||
|  | 			this.moveX = 0; | |||
|  | 			this.status = false; | |||
|  | 		}, | |||
|  | 		// 打开按钮的状态
 | |||
|  | 		open() { | |||
|  | 			if (this.disabled) return; | |||
|  | 			this.moveX = -this.allBtnWidth; | |||
|  | 			this.status = true; | |||
|  | 		}, | |||
|  | 		// 用户手指离开movable-view元素,停止触摸
 | |||
|  | 		touchend() { | |||
|  | 			this.moveX = this.scrollX; | |||
|  | 			// 停止触摸时候,判断当前是展开还是关闭状态
 | |||
|  | 			// 关闭状态
 | |||
|  | 			// 这一步很重要,需要先给this.moveX一个变化的随机值,否则因为前后设置的为同一个值
 | |||
|  | 			// props单向数据流的原因,导致movable-view元素不会发生变化,切记,详见文档:
 | |||
|  | 			// https://uniapp.dcloud.io/use?id=%e5%b8%b8%e8%a7%81%e9%97%ae%e9%a2%98
 | |||
|  | 			this.$nextTick(function() { | |||
|  | 				if (this.status == false) { | |||
|  | 					// 关闭状态左滑,产生的x轴位移为负值,也就是说滑动的距离大于按钮的四分之一宽度,自动展开按钮
 | |||
|  | 					if (this.scrollX <= -this.allBtnWidth / 4) { | |||
|  | 						this.moveX = -this.allBtnWidth; // 按钮宽度的负值,即为展开状态movable-view元素左滑的距离
 | |||
|  | 						this.status = true; // 标志当前为展开状态
 | |||
|  | 						this.emitOpenEvent(); | |||
|  | 						// 产生震动效果
 | |||
|  | 						if (this.vibrateShort) uni.vibrateShort(); | |||
|  | 					} else { | |||
|  | 						this.moveX = 0; // 如果距离没有按钮宽度的四分之一,自动收起
 | |||
|  | 						this.status = false; | |||
|  | 						this.emitCloseEvent(); | |||
|  | 					} | |||
|  | 				} else { | |||
|  | 					// 如果在打开的状态下,右滑动的距离X轴偏移超过按钮的四分之一(负值反过来的四分之三),自动收起按钮
 | |||
|  | 					if (this.scrollX > (-this.allBtnWidth * 3) / 4) { | |||
|  | 						this.moveX = 0; | |||
|  | 						this.$nextTick(() => { | |||
|  | 							this.moveX = 101; | |||
|  | 						}); | |||
|  | 						this.status = false; | |||
|  | 						this.emitCloseEvent(); | |||
|  | 					} else { | |||
|  | 						this.moveX = -this.allBtnWidth; | |||
|  | 						this.status = true; | |||
|  | 						this.emitOpenEvent(); | |||
|  | 					} | |||
|  | 				} | |||
|  | 			}); | |||
|  | 		}, | |||
|  | 		emitOpenEvent() { | |||
|  | 			this.$emit('open', this.index); | |||
|  | 		}, | |||
|  | 		emitCloseEvent() { | |||
|  | 			this.$emit('close', this.index); | |||
|  | 		}, | |||
|  | 		// 开始触摸
 | |||
|  | 		touchstart() {}, | |||
|  | 		getActionRect() { | |||
|  | 			this.$uGetRect('.u-swipe-action').then(res => { | |||
|  | 				this.movableAreaWidth = res.width; | |||
|  | 				// 等视图更新完后,再显示右边的可滑动按钮,防止这些按钮会"闪一下"
 | |||
|  | 				this.$nextTick(() => { | |||
|  | 					this.showBtn = true; | |||
|  | 				}) | |||
|  | 			}); | |||
|  | 		}, | |||
|  | 		// 点击内容触发事件
 | |||
|  | 		contentClick() { | |||
|  | 			// 点击内容时,如果当前为打开状态,收起组件
 | |||
|  | 			if (this.status == true) { | |||
|  | 				this.status = 'close'; | |||
|  | 				this.moveX = 0; | |||
|  | 			} | |||
|  | 			this.$emit('content-click', this.index); | |||
|  | 		} | |||
|  | 	} | |||
|  | }; | |||
|  | </script> | |||
|  | 
 | |||
|  | <style scoped lang="scss"> | |||
|  | @import "../../libs/css/style.components.scss"; | |||
|  | 	 | |||
|  | .u-swipe-action { | |||
|  | 	width: auto; | |||
|  | 	height: initial; | |||
|  | 	position: relative; | |||
|  | 	overflow: hidden; | |||
|  | } | |||
|  | 
 | |||
|  | .u-swipe-view { | |||
|  | 	@include vue-flex; | |||
|  | 	height: initial; | |||
|  | 	position: relative; | |||
|  | 	/* 这一句很关键,覆盖默认的绝对定位 */ | |||
|  | } | |||
|  | 
 | |||
|  | .u-swipe-content { | |||
|  | 	flex: 1; | |||
|  | } | |||
|  | 
 | |||
|  | .u-swipe-del { | |||
|  | 	position: relative; | |||
|  | 	font-size: 30rpx; | |||
|  | 	color: #ffffff; | |||
|  | } | |||
|  | 
 | |||
|  | .u-btn-text { | |||
|  | 	position: absolute; | |||
|  | 	top: 50%; | |||
|  | 	left: 50%; | |||
|  | 	transform: translate(-50%, -50%); | |||
|  | } | |||
|  | </style> |