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							- <template>
 
- 	<view
 
- 	    class="u-col"
 
- 		ref="u-col"
 
- 	    :class="[
 
- 			'u-col-' + span
 
- 		]"
 
- 	    :style="[colStyle]"
 
- 	    @tap="clickHandler"
 
- 	>
 
- 		<slot></slot>
 
- 	</view>
 
- </template>
 
- <script>
 
- 	import props from './props.js';
 
- 	import mpMixin from '../../libs/mixin/mpMixin.js';
 
- 	import mixin from '../../libs/mixin/mixin.js';
 
- 	/**
 
- 	 * CodeInput 栅格系统的列 
 
- 	 * @description 该组件一般用于Layout 布局 通过基础的 12 分栏,迅速简便地创建布局
 
- 	 * @tutorial https://ijry.github.io/uview-plus/components/Layout.html
 
- 	 * @property {String | Number}	span		栅格占据的列数,总12等份 (默认 12 ) 
 
- 	 * @property {String | Number}	offset		分栏左边偏移,计算方式与span相同 (默认 0 ) 
 
- 	 * @property {String}			justify		水平排列方式,可选值为`start`(或`flex-start`)、`end`(或`flex-end`)、`center`、`around`(或`space-around`)、`between`(或`space-between`)  (默认 'start' ) 
 
- 	 * @property {String}			align		垂直对齐方式,可选值为top、center、bottom、stretch (默认 'stretch' ) 
 
- 	 * @property {String}			textAlign	文字水平对齐方式 (默认 'left' ) 
 
- 	 * @property {Object}			customStyle	定义需要用到的外部样式
 
- 	 * @event {Function}	click	col被点击,会阻止事件冒泡到row
 
- 	 * @example	 <u-col  span="3" offset="3" > <view class="demo-layout bg-purple"></view> </u-col>
 
- 	 */
 
- 	export default {
 
- 		name: 'u-col',
 
- 		mixins: [mpMixin, mixin, props],
 
- 		data() {
 
- 			return {
 
- 				width: 0,
 
- 				parentData: {
 
- 					gutter: 0
 
- 				},
 
- 				gridNum: 12
 
- 			}
 
- 		},
 
- 		//  微信小程序中 options 选项
 
- 		options: {
 
- 			virtualHost: true // 将自定义节点设置成虚拟的,更加接近Vue组件的表现。我们不希望自定义组件的这个节点本身可以设置样式、响应 flex 布局等
 
- 		},
 
- 		computed: {
 
- 			uJustify() {
 
- 				if (this.justify == 'end' || this.justify == 'start') return 'flex-' + this.justify
 
- 				else if (this.justify == 'around' || this.justify == 'between') return 'space-' + this.justify
 
- 				else return this.justify
 
- 			},
 
- 			uAlignItem() {
 
- 				if (this.align == 'top') return 'flex-start'
 
- 				if (this.align == 'bottom') return 'flex-end'
 
- 				else return this.align
 
- 			},
 
- 			colStyle() {
 
- 				const style = {
 
- 					// 这里写成"padding: 0 10px"的形式是因为nvue的需要
 
- 					paddingLeft: uni.$u.addUnit(uni.$u.getPx(this.parentData.gutter)/2),
 
- 					paddingRight: uni.$u.addUnit(uni.$u.getPx(this.parentData.gutter)/2),
 
- 					alignItems: this.uAlignItem,
 
- 					justifyContent: this.uJustify,
 
- 					textAlign: this.textAlign,
 
- 					// #ifndef APP-NVUE
 
- 					// 在非nvue上,使用百分比形式
 
- 					flex: `0 0 ${100 / this.gridNum * this.span}%`,
 
- 					marginLeft: 100 / 12 * this.offset + '%',
 
- 					// #endif
 
- 					// #ifdef APP-NVUE
 
- 					// 在nvue上,由于无法使用百分比单位,这里需要获取父组件的宽度,再计算得出该有对应的百分比尺寸
 
- 					width: uni.$u.addUnit(Math.floor(this.width / this.gridNum * Number(this.span))),
 
- 					marginLeft: uni.$u.addUnit(Math.floor(this.width / this.gridNum * Number(this.offset))),
 
- 					// #endif
 
- 				}
 
- 				return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle))
 
- 			}
 
- 		},
 
- 		mounted() {
 
- 			this.init()
 
- 		},
 
- 		methods: {
 
- 			async init() {
 
- 				// 支付宝小程序不支持provide/inject,所以使用这个方法获取整个父组件,在created定义,避免循环引用
 
- 				this.updateParentData()
 
- 				this.width = await this.parent.getComponentWidth()
 
- 			},
 
- 			updateParentData() {
 
- 				this.getParentData('u-row')
 
- 			},
 
- 			clickHandler(e) {
 
- 				this.$emit('click');
 
- 			}
 
- 		},
 
- 	}
 
- </script>
 
- <style lang="scss" scoped>
 
- 	@import "../../libs/css/components.scss";
 
- 	.u-col {
 
- 		padding: 0;
 
- 		/* #ifndef APP-NVUE */
 
- 		box-sizing:border-box;
 
- 		/* #endif */
 
- 		/* #ifdef MP */
 
- 		display: block;
 
- 		/* #endif */
 
- 	}
 
- 	// nvue下百分比无效
 
- 	/* #ifndef APP-NVUE */
 
- 	.u-col-0 {
 
- 		width: 0;
 
- 	}
 
- 	.u-col-1 {
 
- 		width: calc(100%/12);
 
- 	}
 
- 	.u-col-2 {
 
- 		width: calc(100%/12 * 2);
 
- 	}
 
- 	.u-col-3 {
 
- 		width: calc(100%/12 * 3);
 
- 	}
 
- 	.u-col-4 {
 
- 		width: calc(100%/12 * 4);
 
- 	}
 
- 	.u-col-5 {
 
- 		width: calc(100%/12 * 5);
 
- 	}
 
- 	.u-col-6 {
 
- 		width: calc(100%/12 * 6);
 
- 	}
 
- 	.u-col-7 {
 
- 		width: calc(100%/12 * 7);
 
- 	}
 
- 	.u-col-8 {
 
- 		width: calc(100%/12 * 8);
 
- 	}
 
- 	.u-col-9 {
 
- 		width: calc(100%/12 * 9);
 
- 	}
 
- 	.u-col-10 {
 
- 		width: calc(100%/12 * 10);
 
- 	}
 
- 	.u-col-11 {
 
- 		width: calc(100%/12 * 11);
 
- 	}
 
- 	.u-col-12 {
 
- 		width: calc(100%/12 * 12);
 
- 	}
 
- 	/* #endif */
 
- </style>
 
 
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