109 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Vue
		
	
	
	
		
		
			
		
	
	
			109 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Vue
		
	
	
	
|  | <template> | |||
|  | 	<view class="u-grid" :class="{'u-border-top u-border-left': border}" :style="[gridStyle]"><slot /></view> | |||
|  | </template> | |||
|  | 
 | |||
|  | <script> | |||
|  | /** | |||
|  |  * grid 宫格布局 | |||
|  |  * @description 宫格组件一般用于同时展示多个同类项目的场景,可以给宫格的项目设置徽标组件(badge),或者图标等,也可以扩展为左右滑动的轮播形式。 | |||
|  |  * @tutorial https://www.uviewui.com/components/grid.html
 | |||
|  |  * @property {String Number} col 宫格的列数(默认3) | |||
|  |  * @property {Boolean} border 是否显示宫格的边框(默认true) | |||
|  |  * @property {Boolean} hover-class 点击宫格的时候,是否显示按下的灰色背景(默认false) | |||
|  |  * @event {Function} click 点击宫格触发 | |||
|  |  * @example <u-grid :col="3" @click="click"></u-grid> | |||
|  |  */ | |||
|  | export default { | |||
|  | 	name: 'u-grid', | |||
|  | 	props: { | |||
|  | 		// 分成几列
 | |||
|  | 		col: { | |||
|  | 			type: [Number, String], | |||
|  | 			default: 3 | |||
|  | 		}, | |||
|  | 		// 是否显示边框
 | |||
|  | 		border: { | |||
|  | 			type: Boolean, | |||
|  | 			default: true | |||
|  | 		}, | |||
|  | 		// 宫格对齐方式,表现为数量少的时候,靠左,居中,还是靠右
 | |||
|  | 		align: { | |||
|  | 			type: String, | |||
|  | 			default: 'left' | |||
|  | 		}, | |||
|  | 		// 宫格按压时的样式类,"none"为无效果
 | |||
|  | 		hoverClass: { | |||
|  | 			type: String, | |||
|  | 			default: 'u-hover-class' | |||
|  | 		} | |||
|  | 	}, | |||
|  | 	data() { | |||
|  | 		return { | |||
|  | 			index: 0, | |||
|  | 		} | |||
|  | 	}, | |||
|  | 	watch: { | |||
|  | 		// 当父组件需要子组件需要共享的参数发生了变化,手动通知子组件
 | |||
|  | 		parentData() { | |||
|  | 			if(this.children.length) { | |||
|  | 				this.children.map(child => { | |||
|  | 					// 判断子组件(u-radio)如果有updateParentData方法的话,就就执行(执行的结果是子组件重新从父组件拉取了最新的值)
 | |||
|  | 					typeof(child.updateParentData) == 'function' && child.updateParentData(); | |||
|  | 				}) | |||
|  | 			} | |||
|  | 		}, | |||
|  | 	}, | |||
|  | 	created() { | |||
|  | 		// 如果将children定义在data中,在微信小程序会造成循环引用而报错
 | |||
|  | 		this.children = []; | |||
|  | 	}, | |||
|  | 	computed: { | |||
|  | 		// 计算父组件的值是否发生变化
 | |||
|  | 		parentData() { | |||
|  | 			return [this.hoverClass, this.col, this.size, this.border]; | |||
|  | 		}, | |||
|  | 		// 宫格对齐方式
 | |||
|  | 		gridStyle() { | |||
|  | 			let style = {}; | |||
|  | 			switch(this.align) { | |||
|  | 				case 'left': | |||
|  | 					style.justifyContent = 'flex-start'; | |||
|  | 					break; | |||
|  | 				case 'center': | |||
|  | 					style.justifyContent = 'center'; | |||
|  | 					break; | |||
|  | 				case 'right': | |||
|  | 					style.justifyContent = 'flex-end'; | |||
|  | 					break; | |||
|  | 				default: style.justifyContent = 'flex-start'; | |||
|  | 			}; | |||
|  | 			return style; | |||
|  | 		} | |||
|  | 	}, | |||
|  | 	methods: { | |||
|  | 		click(index) { | |||
|  | 			this.$emit('click', index); | |||
|  | 		} | |||
|  | 	} | |||
|  | }; | |||
|  | </script> | |||
|  | 
 | |||
|  | <style scoped lang="scss"> | |||
|  | @import "../../libs/css/style.components.scss"; | |||
|  | 
 | |||
|  | .u-grid { | |||
|  | 	width: 100%; | |||
|  | 	/* #ifdef MP */ | |||
|  | 	position: relative; | |||
|  | 	box-sizing: border-box; | |||
|  | 	overflow: hidden; | |||
|  | 	/* #endif */ | |||
|  | 	 | |||
|  | 	/* #ifndef MP */ | |||
|  | 	@include vue-flex; | |||
|  | 	flex-wrap: wrap; | |||
|  | 	align-items: center; | |||
|  | 	/* #endif */ | |||
|  | } | |||
|  | </style> |