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						- <template>
 - 	<!-- #ifndef APP-NVUE -->
 - 	<view
 - 	    class="uv-grid-item"
 - 	    hover-class="uv-grid-item--hover-class"
 - 	    :hover-stay-time="200"
 - 	    @tap="clickHandler"
 - 	    :class="classes"
 - 	    :style="[itemStyle]"
 - 	>
 - 		<slot />
 - 	</view>
 - 	<!-- #endif -->
 - 	<!-- #ifdef APP-NVUE -->
 - 	<view
 - 	    class="uv-grid-item"
 - 	    :hover-stay-time="200"
 - 	    @tap="clickHandler"
 - 	    :class="classes"
 - 	    :style="[itemStyle]"
 - 	>
 - 		<slot />
 - 	</view>
 - 	<!-- #endif -->
 - </template>
 - 
 - <script>
 - 	import mpMixin from '@/uni_modules/uv-ui-tools/libs/mixin/mpMixin.js'
 - 	import mixin from '@/uni_modules/uv-ui-tools/libs/mixin/mixin.js'
 - 	import props from './props.js';
 - 	/**
 - 	 * gridItem 提示
 - 	 * @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。搭配uv-grid使用
 - 	 * @tutorial https://www.uvui.cn/components/grid.html
 - 	 * @property {String | Number}	name		宫格的name ( 默认 null )
 - 	 * @property {String}			bgColor		宫格的背景颜色 (默认 'transparent' )
 - 	 * @property {Object}			customStyle	自定义样式,对象形式
 - 	 * @event {Function} click 点击宫格触发
 - 	 * @example <uv-grid-item></uv-grid-item>
 - 	 */
 - 	export default {
 - 		name: "uv-grid-item",
 - 		mixins: [mpMixin, mixin, props],
 - 		emits: ['$uvGridItem','click'],
 - 		data() {
 - 			return {
 - 				parentData: {
 - 					col: 3, // 父组件划分的宫格数
 - 					border: true, // 是否显示边框,根据父组件决定
 - 				},
 - 				// #ifdef APP-NVUE
 - 				width: 0, // nvue下才这么计算,vue下放到computed中,否则会因为延时造成闪烁
 - 				// #endif
 - 				classes: [], // 类名集合,用于判断是否显示右边和下边框
 - 			};
 - 		},
 - 		created() {
 - 			// 父组件的实例
 - 			this.updateParentData()
 - 		},
 - 		mounted() {
 - 			this.init()
 - 		},
 - 		computed: {
 - 			// #ifndef APP-NVUE
 - 			// vue下放到computed中,否则会因为延时造成闪烁
 - 			width() {
 - 				return 100 / Number(this.parentData.col) + '%'
 - 			},
 - 			// #endif
 - 			itemStyle() {
 - 				const style = {
 - 					background: this.bgColor,
 - 					width: this.width
 - 				}
 - 				return this.$uv.deepMerge(style, this.$uv.addStyle(this.customStyle))
 - 			}
 - 		},
 - 		methods: {
 - 			init() {
 - 				// 用于在父组件uv-grid的children中被添加入子组件时,
 - 				// 重新计算item的边框
 - 				uni.$on('$uvGridItem', () => {
 - 					this.gridItemClasses()
 - 				})
 - 				// #ifdef APP-NVUE
 - 				// 获取元素该有的长度,nvue下要延时才准确
 - 				this.$nextTick(function(){
 - 					this.getItemWidth()
 - 				})
 - 				// #endif
 - 				// 发出事件,通知所有的grid-item都重新计算自己的边框
 - 				uni.$emit('$uvGridItem')
 - 				this.gridItemClasses()
 - 			},
 - 			// 获取父组件的参数
 - 			updateParentData() {
 - 				// 此方法写在mixin中
 - 				this.getParentData('uv-grid');
 - 			},
 - 			clickHandler() {
 - 				let name = this.name
 - 				// 如果没有设置name属性,历遍父组件的children数组,判断当前的元素是否和本实例this相等,找出当前组件的索引
 - 				const children = this.parent?.children
 - 				if(children && this.name === null) {
 - 					name = children.findIndex(child => child === this)
 - 				}
 - 				// 调用父组件方法,发出事件
 - 				this.parent && this.parent.childClick(name)
 - 				this.$emit('click', name)
 - 			},
 - 			async getItemWidth() {
 - 				// 如果是nvue,不能使用百分比,只能使用固定宽度
 - 				let width = 0
 - 				if(this.parent) {
 - 					// 获取父组件宽度后,除以栅格数,得出每个item的宽度
 - 					const parentWidth = await this.getParentWidth()
 - 					width = parentWidth / Number(this.parentData.col) + 'px'
 - 				}
 - 				this.width = width
 - 			},
 - 			// 获取父元素的尺寸
 - 			getParentWidth() {
 - 				// #ifdef APP-NVUE
 - 				// 返回一个promise,让调用者可以用await同步获取
 - 				const dom = uni.requireNativePlugin('dom')
 - 				return new Promise(resolve => {
 - 					// 调用父组件的ref
 - 					dom.getComponentRect(this.parent.$refs['uv-grid'], res => {
 - 						resolve(res.size.width)
 - 					})
 - 				})
 - 				// #endif
 - 			},
 - 			gridItemClasses() {
 - 				if(this.parentData.border) {
 - 					let classes = []
 - 					this.parent.children.map((child, index) =>{
 - 						if(this === child) {
 - 							const len = this.parent.children.length
 - 							// 贴近右边屏幕边沿的child,并且最后一个(比如只有横向2个的时候),无需右边框
 - 							if((index + 1) % this.parentData.col !== 0 && index + 1 !== len) {
 - 								classes.push('uv-border-right')
 - 							}
 - 							// 总的宫格数量对列数取余的值
 - 							// 如果取余后,值为0,则意味着要将最后一排的宫格,都不需要下边框
 - 							const lessNum = len % this.parentData.col === 0 ? this.parentData.col : len % this.parentData.col
 - 							// 最下面的一排child,无需下边框
 - 							if(index < len - lessNum) {
 - 								classes.push('uv-border-bottom')
 - 							}
 - 						}
 - 					})
 - 					// 支付宝,头条小程序无法动态绑定一个数组类名,否则解析出来的结果会带有",",而导致失效
 - 					// #ifdef MP-ALIPAY || MP-TOUTIAO
 - 					classes = classes.join(' ')
 - 					// #endif
 - 					this.classes = classes
 - 				}
 - 			}
 - 		},
 - 		// #ifdef VUE2
 - 		beforeDestroy() {
 - 			// 移除事件监听,释放性能
 - 			uni.$off('$uvGridItem')
 - 		},
 - 		// #endif
 - 		// #ifdef VUE3
 - 		unmounted() {
 - 			// 移除事件监听,释放性能
 - 			uni.$off('$uvGridItem')
 - 		}
 - 		// #endif
 - 	};
 - </script>
 - 
 - <style lang="scss" scoped>
 - 	$show-border: 1;
 - 	$show-border-right: 1;
 - 	$show-border-bottom: 1;
 - 	@import '@/uni_modules/uv-ui-tools/libs/css/variable.scss';
 - 	@import '@/uni_modules/uv-ui-tools/libs/css/components.scss';
 - 	@import '@/uni_modules/uv-ui-tools/libs/css/color.scss';
 - 	$uv-grid-item-hover-class-opcatiy:.5 !default;
 - 	$uv-grid-item-margin-top:1rpx !default;
 - 	$uv-grid-item-border-right-width:0.5px !default;
 - 	$uv-grid-item-border-bottom-width:0.5px !default;
 - 	$uv-grid-item-border-right-color:$uv-border-color !default;
 - 	$uv-grid-item-border-bottom-color:$uv-border-color !default;
 - 	.uv-grid-item {
 - 		align-items: center;
 - 		justify-content: center;
 - 		position: relative;
 - 		flex-direction: column;
 - 		/* #ifndef APP-NVUE */
 - 		box-sizing: border-box;
 - 		display: flex;
 - 		/* #endif */
 - 
 - 		/* #ifdef MP */
 - 		position: relative;
 - 		float: left;
 - 		/* #endif */
 - 
 - 		/* #ifdef MP-WEIXIN */
 - 		margin-top:$uv-grid-item-margin-top;
 - 		/* #endif */
 - 
 - 		&--hover-class {
 - 			opacity:$uv-grid-item-hover-class-opcatiy;
 - 		}
 - 	}
 - 
 - 	/* #ifdef APP-NVUE */
 - 	// 由于nvue不支持组件内引入app.vue中再引入的样式,所以需要写在这里
 - 	.uv-border-right {
 - 		border-right-width:$uv-grid-item-border-right-width;
 - 		border-color: $uv-grid-item-border-right-color;
 - 	}
 - 
 - 	.uv-border-bottom {
 - 		border-bottom-width:$uv-grid-item-border-bottom-width;
 - 		border-color:$uv-grid-item-border-bottom-color;
 - 	}
 - 	/* #endif */
 - </style>
 
 
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