uv-col.vue
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<template>
<view
class="uv-col"
ref="uv-col"
:class="[
'uv-col-' + span
]"
:style="[colStyle]"
@tap="clickHandler"
>
<slot></slot>
</view>
</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';
/**
* 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://www.uvui.cn/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 <uv-col span="3" offset="3" > <view class="demo-layout bg-purple"></view> </uv-col>
*/
export default {
name: 'uv-col',
emits: ['click'],
mixins: [mpMixin, mixin, props],
data() {
return {
width: 0,
parentData: {
gutter: 0
},
gridNum: 12
}
},
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: this.$uv.addUnit(this.$uv.getPx(this.parentData.gutter)/2),
paddingRight: this.$uv.addUnit(this.$uv.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 ${100 / this.gridNum * this.span}%`,
marginLeft: 100 / 12 * this.offset + '%',
// #endif
// #ifdef APP-NVUE
// 在nvue上，由于无法使用百分比单位，这里需要获取父组件的宽度，再计算得出该有对应的百分比尺寸
width: this.$uv.addUnit(Math.floor(this.width / this.gridNum * Number(this.span))),
marginLeft: this.$uv.addUnit(Math.floor(this.width / this.gridNum * Number(this.offset))),
// #endif
}
return this.$uv.deepMerge(style, this.$uv.addStyle(this.customStyle))
}
},
mounted() {
this.init()
},
methods: {
async init() {
// 支付宝小程序不支持provide/inject，所以使用这个方法获取整个父组件，在created定义，避免循环引用
this.updateParentData()
this.width = await this.parent.getComponentWidth()
},
updateParentData() {
this.getParentData('uv-row')
},
clickHandler(e) {
this.$emit('click');
}
},
}
</script>
<style lang="scss" scoped>
@import '@/uni_modules/uv-ui-tools/libs/css/components.scss';
.uv-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 */
.uv-col-0 {
width: 0;
}
.uv-col-1 {
width: calc(100%/12);
}
.uv-col-2 {
width: calc(100%/12 * 2);
}
.uv-col-3 {
width: calc(100%/12 * 3);
}
.uv-col-4 {
width: calc(100%/12 * 4);
}
.uv-col-5 {
width: calc(100%/12 * 5);
}
.uv-col-6 {
width: calc(100%/12 * 6);
}
.uv-col-7 {
width: calc(100%/12 * 7);
}
.uv-col-8 {
width: calc(100%/12 * 8);
}
.uv-col-9 {
width: calc(100%/12 * 9);
}
.uv-col-10 {
width: calc(100%/12 * 10);
}
.uv-col-11 {
width: calc(100%/12 * 11);
}
.uv-col-12 {
width: calc(100%/12 * 12);
}
/* #endif */
</style>