/**
* @Component Col
* @Type 布局组件
* @Author 瞿龙俊 - qulongjun@shine.design
* @Date 2019-03-24 12:43
*/
import React, {PureComponent} from 'react';
import _ from 'lodash';
import classNames from 'classnames';
import * as PropTypes from 'prop-types';
import {classPrefix} from '../../_variables';
import './style/index.scss';
class Col extends PureComponent {
constructor(props) {
super(props);
this.onColClasses = this.onColClasses.bind(this);
}
/**
* 若 param 属性为数字类型,则直接生成 param-xxx 修饰符,如 col-3,offset-3,order-3
* 若 param 属性为对象,则生成 param-key-value 修饰符,如 col-md-3,offset-md-3,order-md-3
* 特殊的,如果 key 为 default ,则依然生成 param-xxx 修饰符,如 col-3,offset-3,order-3
* @return Array Col 修饰符
*/
onColClasses(param) {
const data = this.props[param];
if (_.isNumber(data) || _.isString(data)) {
return [`${classPrefix}-${param}-${data}`];
}
const colClasses = [];
if (_.isObject(data)) {
_.forIn(data, (value, key) => {
colClasses.push(_.isEqual(key, 'default') ? `${classPrefix}-${param}-${value}` : `${classPrefix}-${param}-${key}-${value}`);
});
}
return colClasses;
}
render() {
const {className, attributes, children} = this.props;
const special = ['col', 'offset', 'order'];
/** 计算样式 */
const classes = classNames(
_.flatten(_.map(special, item => this.onColClasses(item))),
className,
);
return (
<div
className={classes}
{...attributes}
>
{children}
</div>
);
}
}
Col.propTypes = {
/** 定义列格块数 */
col: PropTypes.oneOfType([
PropTypes.number,
PropTypes.string,
PropTypes.object,
]),
/** 定义列格块偏移量 */
offset: PropTypes.oneOfType([
PropTypes.number,
PropTypes.object,
]),
/** 定义列格块排列顺序 */
order: PropTypes.oneOfType([
PropTypes.number,
PropTypes.object,
]),
/** 用户自定义修饰符 */
className: PropTypes.string,
/** 用户自定义属性 */
attributes: PropTypes.object,
};
Col.defaultProps = {
col: 'auto',
offset: undefined,
order: undefined,
className: '',
attributes: {},
};
export default Col;
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