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<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>
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