ant-design/components/layout/col.jsx

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import React, { PropTypes } from 'react';
import classNames from 'classnames';
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const stringOrNumber = PropTypes.oneOfType([PropTypes.string, PropTypes.number]);
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const objectOrNumber = PropTypes.oneOfType([PropTypes.object, PropTypes.number]);
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export default function Col(props) {
const { span, order, offset, push, pull, className, children, ...others } = props;
let sizeClassObj = {};
['xs', 'sm', 'md', 'lg'].forEach(size => {
let sizeProps = {};
if (typeof props[size] === 'number') {
sizeProps.span = props[size];
} else if (typeof props[size] === 'object') {
sizeProps = props[size] || {};
}
sizeClassObj = {
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...sizeClassObj,
[`col-${size}-${sizeProps.span}`]: sizeProps.span !== undefined,
[`col-${size}-order-${sizeProps.order}`]: sizeProps.order,
[`col-${size}-offset-${sizeProps.offset}`]: sizeProps.offset,
[`col-${size}-push-${sizeProps.push}`]: sizeProps.push,
[`col-${size}-pull-${sizeProps.pull}`]: sizeProps.pull,
};
});
const classes = classNames({
[`col-${span}`]: span !== undefined,
[`col-order-${order}`]: order,
[`col-offset-${offset}`]: offset,
[`col-push-${push}`]: push,
[`col-pull-${pull}`]: pull,
[className]: !!className,
...sizeClassObj,
});
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return <div {...others} className={classes}>{children}</div>;
}
Col.propTypes = {
span: stringOrNumber,
order: stringOrNumber,
offset: stringOrNumber,
push: stringOrNumber,
pull: stringOrNumber,
className: PropTypes.string,
children: PropTypes.node,
xs: objectOrNumber,
sm: objectOrNumber,
md: objectOrNumber,
lg: objectOrNumber,
};