row.vue
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<template>
<div :class="classes" :style="styles">
<slot></slot>
</div>
</template>
<script>
import { oneOf, findComponentDownward, findBrothersComponents } from '../../utils/assist';
const prefixCls = 'ivu-row';
export default {
name: 'Row',
props: {
type: {
validator (value) {
return oneOf(value, ['flex']);
}
},
align: {
validator (value) {
return oneOf(value, ['top', 'middle', 'bottom']);
}
},
justify: {
validator (value) {
return oneOf(value, ['start', 'end', 'center', 'space-around', 'space-between']);
}
},
gutter: {
type: Number,
default: 0
},
className: String
},
computed: {
classes () {
return [
{
[`${prefixCls}`]: !this.type,
[`${prefixCls}-${this.type}`]: !!this.type,
[`${prefixCls}-${this.type}-${this.align}`]: !!this.align,
[`${prefixCls}-${this.type}-${this.justify}`]: !!this.justify,
[`${this.className}`]: !!this.className
}
];
},
styles () {
let style = {};
if (this.gutter !== 0) {
style = {
marginLeft: this.gutter / -2 + 'px',
marginRight: this.gutter / -2 + 'px'
};
}
return style;
}
},
methods: {
updateGutter (val) {
// 这里会嵌套寻找，把 Col 里的 Row 里的 Col 也找到，所以用 兄弟找
// const Cols = findComponentsDownward(this, 'iCol');
const Col = findComponentDownward(this, 'iCol');
const Cols = findBrothersComponents(Col, 'iCol', false);
if (Cols.length) {
Cols.forEach((child) => {
if (val !== 0) {
child.gutter = val;
}
});
}
}
},
watch: {
gutter (val) {
this.updateGutter(val);
}
}
};
</script>