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99 lines
2.8 KiB
99 lines
2.8 KiB
<template> |
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<view |
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class="u-grid" |
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ref='u-grid' |
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:style="[gridStyle]" |
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> |
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<slot /> |
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</view> |
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</template> |
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<script> |
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import props from './props.js'; |
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import mpMixin from '../../libs/mixin/mpMixin.js'; |
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import mixin from '../../libs/mixin/mixin.js'; |
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/** |
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* grid 宫格布局 |
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* @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。 |
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* @tutorial https://ijry.github.io/uview-plus/components/grid.html |
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* @property {String | Number} col 宫格的列数（默认 3 ） |
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* @property {Boolean} border 是否显示宫格的边框（默认 false ） |
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* @property {String} align 宫格对齐方式，表现为数量少的时候，靠左，居中，还是靠右 （默认 'left' ） |
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* @property {Object} customStyle 定义需要用到的外部样式 |
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* @event {Function} click 点击宫格触发 |
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* @example <u-grid :col="3" @click="click"></u-grid> |
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*/ |
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export default { |
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name: 'u-grid', |
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mixins: [mpMixin, mixin, props], |
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data() { |
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return { |
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index: 0, |
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width: 0 |
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} |
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}, |
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watch: { |
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// 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 |
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parentData() { |
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if (this.children.length) { |
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this.children.map(child => { |
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// 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) |
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typeof(child.updateParentData) == 'function' && child.updateParentData(); |
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}) |
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} |
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}, |
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}, |
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created() { |
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// 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 |
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this.children = [] |
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}, |
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computed: { |
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// 计算父组件的值是否发生变化 |
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parentData() { |
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return [this.hoverClass, this.col, this.size, this.border]; |
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}, |
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// 宫格对齐方式 |
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gridStyle() { |
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let style = {}; |
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switch (this.align) { |
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case 'left': |
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style.justifyContent = 'flex-start'; |
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break; |
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case 'center': |
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style.justifyContent = 'center'; |
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break; |
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case 'right': |
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style.justifyContent = 'flex-end'; |
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break; |
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default: |
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style.justifyContent = 'flex-start'; |
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}; |
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return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle)); |
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} |
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}, |
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methods: { |
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// 此方法由u-grid-item触发，用于在u-grid发出事件 |
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childClick(name) { |
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this.$emit('click', name) |
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} |
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} |
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}; |
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</script> |
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<style lang="scss" scoped> |
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@import "../../libs/css/components.scss"; |
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$u-grid-width:100% !default; |
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.u-grid { |
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/* #ifdef MP */ |
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width: $u-grid-width; |
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position: relative; |
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box-sizing: border-box; |
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overflow: hidden; |
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display: block; |
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/* #endif */ |
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justify-content: center; |
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@include flex; |
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flex-wrap: wrap; |
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align-items: center; |
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} |
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</style>
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