ant-design/components/form/FormItem.jsx
2016-04-25 16:31:32 +08:00

202 lines
5.0 KiB
JavaScript

import React from 'react';
import classNames from 'classnames';
function prefixClsFn(prefixCls, ...args) {
return args.map((s) => {
return `${prefixCls}-${s}`;
}).join(' ');
}
class FormItem extends React.Component {
_getLayoutClass(colDef) {
if (!colDef) {
return '';
}
const { span, offset } = colDef;
const col = span ? `col-${span}` : '';
const offsetCol = offset ? ` col-offset-${offset}` : '';
return col + offsetCol;
}
getHelpMsg() {
const context = this.context;
const props = this.props;
if (props.help === undefined && context.form) {
return (context.form.getFieldError(this.getId()) || []).join(', ');
}
return props.help;
}
getId() {
return this.props.children.props && this.props.children.props.id;
}
getMeta() {
return this.props.children.props && this.props.children.props.__meta;
}
renderHelp() {
const props = this.props;
const prefixCls = props.prefixCls;
const help = this.getHelpMsg();
return (
<div className={!!help ? prefixClsFn(prefixCls, 'explain') : ''} key="help">
{ help }
</div>
);
}
renderExtra() {
const { prefixCls, extra } = this.props;
return <div className={prefixClsFn(prefixCls, 'extra')}>{extra}</div>;
}
getValidateStatus() {
const { isFieldValidating, getFieldError, getFieldValue } = this.context.form;
const field = this.getId();
if (isFieldValidating(field)) {
return 'validating';
} else if (!!getFieldError(field)) {
return 'error';
} else if (getFieldValue(field) !== undefined) {
return 'success';
}
return '';
}
renderValidateWrapper(c1, c2, c3) {
let classes = '';
const form = this.context.form;
const props = this.props;
const validateStatus = (props.validateStatus === undefined && form) ?
this.getValidateStatus() :
props.validateStatus;
if (validateStatus) {
classes = classNames(
{
'has-feedback': props.hasFeedback,
'has-success': validateStatus === 'success',
'has-warning': validateStatus === 'warning',
'has-error': validateStatus === 'error',
'is-validating': validateStatus === 'validating',
}
);
}
return (
<div className={`${this.props.prefixCls}-item-control ${classes}`}>
{c1}{c2}{c3}
</div>
);
}
renderWrapper(children) {
const wrapperCol = this.props.wrapperCol;
return (
<div className={this._getLayoutClass(wrapperCol)} key="wrapper">
{children}
</div>
);
}
isRequired() {
if (this.context.form) {
const meta = this.getMeta() || {};
const validate = (meta.validate || []);
return validate.filter((item) => !!item.rules).some((item) => {
return item.rules.some((rule) => rule.required);
});
}
return false;
}
renderLabel() {
const props = this.props;
const labelCol = props.labelCol;
const required = props.required === undefined ?
this.isRequired() :
props.required;
const className = classNames({
[this._getLayoutClass(labelCol)]: true,
[`${props.prefixCls}-item-required`]: required,
});
return props.label ? (
<label htmlFor={props.id || this.getId()} className={className} key="label">
{props.label}
</label>
) : null;
}
renderChildren() {
const props = this.props;
const children = React.Children.map(props.children, (child) => {
if (child && typeof child.type === 'function' && !child.props.size) {
return React.cloneElement(child, { size: 'large' });
}
return child;
});
return [
this.renderLabel(),
this.renderWrapper(
this.renderValidateWrapper(
children,
this.renderHelp(),
this.renderExtra()
)
),
];
}
renderFormItem(children) {
const props = this.props;
const prefixCls = props.prefixCls;
const style = props.style;
const itemClassName = {
[`${prefixCls}-item`]: true,
[`${prefixCls}-item-with-help`]: !!this.getHelpMsg(),
[`${props.className}`]: !!props.className,
};
return (
<div className={classNames(itemClassName)} style={style}>
{children}
</div>
);
}
render() {
const children = this.renderChildren();
return this.renderFormItem(children);
}
}
FormItem.propTypes = {
prefixCls: React.PropTypes.string,
label: React.PropTypes.node,
labelCol: React.PropTypes.object,
help: React.PropTypes.oneOfType([React.PropTypes.node, React.PropTypes.bool]),
validateStatus: React.PropTypes.oneOf(['', 'success', 'warning', 'error', 'validating']),
hasFeedback: React.PropTypes.bool,
wrapperCol: React.PropTypes.object,
className: React.PropTypes.string,
id: React.PropTypes.string,
children: React.PropTypes.node,
};
FormItem.defaultProps = {
hasFeedback: false,
prefixCls: 'ant-form',
};
FormItem.contextTypes = {
form: React.PropTypes.object,
};
module.exports = FormItem;