yunshangxie/tuniao-ui/components/tn-grid/tn-grid.vue

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<template>
<view
class="tn-grid-class tn-grid"
:style="{
justifyContent: gridAlignStyle
}"
>
<slot></slot>
</view>
</template>
<script>
export default {
name: 'tn-grid',
props: {
// 分成几列
col: {
type: [Number, String],
default: 3
},
// 宫格对齐方式
// left 左对齐 center 居中对齐 right 右对齐
align: {
type: String,
default: 'left'
},
// 点击时的效果none没有效果
hoverClass: {
type: String,
default: 'tn-hover'
}
},
data() {
return {
}
},
watch: {
// 当父组件和子组件需要共享参数变化,通知子组件
parentData() {
if (this.children.length) {
this.children.map(child => {
// 判断子组件是否有updateParentData方式有才执行
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.border]
},
// 宫格对齐方式
gridAlignStyle() {
switch(this.align) {
case 'left':
return 'flex-start'
case 'center':
return 'center'
case 'right':
return 'flex-end'
default:
return 'flex-start'
}
}
},
methods: {
click(index) {
this.$emit('click', index)
}
}
}
</script>
<style lang="scss" scoped>
// 组件中兼容小程序的方式,不过不能使用对齐方式
// .tn-grid {
// width: 100%;
// /* #ifdef MP */
// position: relative;
// box-sizing: border-box;
// overflow: hidden;
// /* #endif */
// /* #ifndef MP */
// /* #ifndef APP-NVUE */
// display: flex;
// flex-direction: row;
// /* #endif */
// flex-wrap: wrap;
// align-items: center;
// /* #endif */
// }
// 在使用组件时兼容小程序
.tn-grid {
width: 100%;
display: flex;
flex-direction: row;
flex-wrap: wrap;
align-items: center;
}
</style>