206 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			Vue
		
	
	
	
		
		
			
		
	
	
			206 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			Vue
		
	
	
	
|  | <template> | |||
|  | 	<view class="u-collapse-item" :style="[itemStyle]"> | |||
|  | 		<view :hover-stay-time="200" class="u-collapse-head" @tap.stop="headClick" :hover-class="hoverClass" :style="[headStyle]"> | |||
|  | 			<block v-if="!$slots['title-all']"> | |||
|  | 				<view v-if="!$slots['title']" class="u-collapse-title u-line-1" :style="[{ textAlign: align ? align : 'left' }, | |||
|  | 					isShow && activeStyle && !arrow ? activeStyle : '']"> | |||
|  | 					{{ title }} | |||
|  | 				</view> | |||
|  | 				<slot v-else name="title" /> | |||
|  | 				<view class="u-icon-wrap"> | |||
|  | 					<u-icon v-if="arrow" :color="arrowColor" :class="{ 'u-arrow-down-icon-active': isShow }" | |||
|  | 					 class="u-arrow-down-icon" name="arrow-down"></u-icon> | |||
|  | 				</view> | |||
|  | 			</block> | |||
|  | 			<slot v-else name="title-all" /> | |||
|  | 		</view> | |||
|  | 		<view class="u-collapse-body" :style="[{ | |||
|  | 				height: isShow ? height + 'px' : '0' | |||
|  | 			}]"> | |||
|  | 			<view class="u-collapse-content" :id="elId" :style="[bodyStyle]"> | |||
|  | 				<slot></slot> | |||
|  | 			</view> | |||
|  | 		</view> | |||
|  | 	</view> | |||
|  | </template> | |||
|  | 
 | |||
|  | <script> | |||
|  | 	/** | |||
|  | 	 * collapseItem 手风琴Item | |||
|  | 	 * @description 通过折叠面板收纳内容区域(搭配u-collapse使用) | |||
|  | 	 * @tutorial https://www.uviewui.com/components/collapse.html
 | |||
|  | 	 * @property {String} title 面板标题 | |||
|  | 	 * @property {String Number} index 主要用于事件的回调,标识那个Item被点击 | |||
|  | 	 * @property {Boolean} disabled 面板是否可以打开或收起(默认false) | |||
|  | 	 * @property {Boolean} open 设置某个面板的初始状态是否打开(默认false) | |||
|  | 	 * @property {String Number} name 唯一标识符,如不设置,默认用当前collapse-item的索引值 | |||
|  | 	 * @property {String} align 标题的对齐方式(默认left) | |||
|  | 	 * @property {Object} active-style 不显示箭头时,可以添加当前选择的collapse-item活动样式,对象形式 | |||
|  | 	 * @event {Function} change 某个item被打开或者收起时触发 | |||
|  | 	 * @example <u-collapse-item :title="item.head" v-for="(item, index) in itemList" :key="index">{{item.body}}</u-collapse-item> | |||
|  | 	 */ | |||
|  | 	export default { | |||
|  | 		name: "u-collapse-item", | |||
|  | 		props: { | |||
|  | 			// 标题
 | |||
|  | 			title: { | |||
|  | 				type: String, | |||
|  | 				default: '' | |||
|  | 			}, | |||
|  | 			// 标题的对齐方式
 | |||
|  | 			align: { | |||
|  | 				type: String, | |||
|  | 				default: 'left' | |||
|  | 			}, | |||
|  | 			// 是否可以点击收起
 | |||
|  | 			disabled: { | |||
|  | 				type: Boolean, | |||
|  | 				default: false | |||
|  | 			}, | |||
|  | 			// collapse显示与否
 | |||
|  | 			open: { | |||
|  | 				type: Boolean, | |||
|  | 				default: false | |||
|  | 			}, | |||
|  | 			// 唯一标识符
 | |||
|  | 			name: { | |||
|  | 				type: [Number, String], | |||
|  | 				default: '' | |||
|  | 			}, | |||
|  | 			//活动样式
 | |||
|  | 			activeStyle: { | |||
|  | 				type: Object, | |||
|  | 				default () { | |||
|  | 					return {} | |||
|  | 				} | |||
|  | 			}, | |||
|  | 			// 标识当前为第几个
 | |||
|  | 			index: { | |||
|  | 				type: [String, Number], | |||
|  | 				default: '' | |||
|  | 			} | |||
|  | 		}, | |||
|  | 		data() { | |||
|  | 			return { | |||
|  | 				isShow: false, | |||
|  | 				elId: this.$u.guid(), | |||
|  | 				height: 0, // body内容的高度
 | |||
|  | 				headStyle: {}, // 头部样式,对象形式
 | |||
|  | 				bodyStyle: {}, // 主体部分样式
 | |||
|  | 				itemStyle: {}, // 每个item的整体样式
 | |||
|  | 				arrowColor: '', // 箭头的颜色
 | |||
|  | 				hoverClass: '', // 头部按下时的效果样式类
 | |||
|  | 				arrow: true, // 是否显示右侧箭头
 | |||
|  | 				 | |||
|  | 			}; | |||
|  | 		}, | |||
|  | 		watch: { | |||
|  | 			open(val) { | |||
|  | 				this.isShow = val; | |||
|  | 			} | |||
|  | 		}, | |||
|  | 		created() { | |||
|  | 			this.parent = false; | |||
|  | 			// 获取u-collapse的信息,放在u-collapse是为了方便,不用每个u-collapse-item写一遍
 | |||
|  | 			this.isShow = this.open; | |||
|  | 		}, | |||
|  | 		methods: { | |||
|  | 			// 异步获取内容,或者动态修改了内容时,需要重新初始化
 | |||
|  | 			init() { | |||
|  | 				this.parent = this.$u.$parent.call(this, 'u-collapse'); | |||
|  | 				if(this.parent) { | |||
|  | 					this.nameSync = this.name ? this.name : this.parent.childrens.length; | |||
|  | 					// 不存在时才添加本实例
 | |||
|  | 					!this.parent.childrens.includes(this) && this.parent.childrens.push(this); | |||
|  | 					this.headStyle = this.parent.headStyle; | |||
|  | 					this.bodyStyle = this.parent.bodyStyle; | |||
|  | 					this.arrowColor = this.parent.arrowColor; | |||
|  | 					this.hoverClass = this.parent.hoverClass; | |||
|  | 					this.arrow = this.parent.arrow; | |||
|  | 					this.itemStyle = this.parent.itemStyle; | |||
|  | 				} | |||
|  | 				this.$nextTick(() => { | |||
|  | 					this.queryRect(); | |||
|  | 				}); | |||
|  | 			}, | |||
|  | 			// 点击collapsehead头部
 | |||
|  | 			headClick() { | |||
|  | 				if (this.disabled) return; | |||
|  | 				if (this.parent && this.parent.accordion == true) { | |||
|  | 					this.parent.childrens.map(val => { | |||
|  | 						// 自身不设置为false,因为后面有this.isShow = !this.isShow;处理了
 | |||
|  | 						if (this != val) { | |||
|  | 							val.isShow = false; | |||
|  | 						} | |||
|  | 					}); | |||
|  | 				} | |||
|  | 
 | |||
|  | 				this.isShow = !this.isShow; | |||
|  | 				// 触发本组件的事件
 | |||
|  | 				this.$emit('change', { | |||
|  | 					index: this.index, | |||
|  | 					show: this.isShow | |||
|  | 				}) | |||
|  | 				// 只有在打开时才发出事件
 | |||
|  | 				if (this.isShow) this.parent && this.parent.onChange(); | |||
|  | 				this.$forceUpdate(); | |||
|  | 			}, | |||
|  | 			// 查询内容高度
 | |||
|  | 			queryRect() { | |||
|  | 				// $uGetRect为uView自带的节点查询简化方法,详见文档介绍:https://www.uviewui.com/js/getRect.html
 | |||
|  | 				// 组件内部一般用this.$uGetRect,对外的为this.$u.getRect,二者功能一致,名称不同
 | |||
|  | 				this.$uGetRect('#' + this.elId).then(res => { | |||
|  | 					this.height = res.height; | |||
|  | 				}) | |||
|  | 			} | |||
|  | 		}, | |||
|  | 		mounted() { | |||
|  | 			this.init(); | |||
|  | 		} | |||
|  | 	}; | |||
|  | </script> | |||
|  | 
 | |||
|  | <style lang="scss" scoped> | |||
|  | 	@import "../../libs/css/style.components.scss"; | |||
|  | 	 | |||
|  | 	.u-collapse-head { | |||
|  | 		position: relative; | |||
|  | 		@include vue-flex; | |||
|  | 		justify-content: space-between; | |||
|  | 		align-items: center; | |||
|  | 		color: $u-main-color; | |||
|  | 		font-size: 30rpx; | |||
|  | 		line-height: 1; | |||
|  | 		padding: 24rpx 0; | |||
|  | 		text-align: left; | |||
|  | 	} | |||
|  | 
 | |||
|  | 	.u-collapse-title { | |||
|  | 		flex: 1; | |||
|  | 		overflow: hidden; | |||
|  | 	} | |||
|  | 
 | |||
|  | 	.u-arrow-down-icon { | |||
|  | 		transition: all 0.3s; | |||
|  | 		margin-right: 20rpx; | |||
|  | 		margin-left: 14rpx; | |||
|  | 	} | |||
|  | 
 | |||
|  | 	.u-arrow-down-icon-active { | |||
|  | 		transform: rotate(180deg); | |||
|  | 		transform-origin: center center; | |||
|  | 	} | |||
|  | 
 | |||
|  | 	.u-collapse-body { | |||
|  | 		overflow: hidden; | |||
|  | 		transition: all 0.3s; | |||
|  | 	} | |||
|  | 
 | |||
|  | 	.u-collapse-content { | |||
|  | 		overflow: hidden; | |||
|  | 		font-size: 28rpx; | |||
|  | 		color: $u-tips-color; | |||
|  | 		text-align: left; | |||
|  | 	} | |||
|  | </style> |