ant-design/components/date-picker/generatePicker/generateRangePicker.tsx

import * as React from 'react';
import classNames from 'classnames';
import CalendarOutlined from '@ant-design/icons/CalendarOutlined';
import ClockCircleOutlined from '@ant-design/icons/ClockCircleOutlined';
import CloseCircleFilled from '@ant-design/icons/CloseCircleFilled';
import { RangePicker as RCRangePicker } from 'rc-picker';
import { GenerateConfig } from 'rc-picker/lib/generate/index';
import enUS from '../locale/en_US';
import { ConfigContext, ConfigConsumerProps } from '../../config-provider';
import SizeContext from '../../config-provider/SizeContext';
import LocaleReceiver from '../../locale-provider/LocaleReceiver';
import { getRangePlaceholder } from '../util';
import { RangePickerProps, PickerLocale, getTimeProps, Components } from '.';

export default function generateRangePicker<DateType>(
  generateConfig: GenerateConfig<DateType>,
): React.ComponentClass<RangePickerProps<DateType>> {
  class RangePicker extends React.Component<RangePickerProps<DateType>> {
    static contextType = ConfigContext;

    context: ConfigConsumerProps;

    pickerRef = React.createRef<RCRangePicker<DateType>>();

    focus = () => {
      if (this.pickerRef.current) {
        this.pickerRef.current.focus();
      }
    };

    blur = () => {
      if (this.pickerRef.current) {
        this.pickerRef.current.blur();
      }
    };

    getDefaultLocale = () => {
      const { locale } = this.props;
      const result = {
        ...enUS,
        ...locale,
      };
      result.lang = {
        ...result.lang,
        ...((locale || {}) as PickerLocale).lang,
      };
      return result;
    };

    renderPicker = (locale: PickerLocale) => {
      const { getPrefixCls, direction } = this.context;
      const {
        prefixCls: customizePrefixCls,
        className,
        size: customizeSize,
        bordered = true,
        ...restProps
      } = this.props;
      const { format, showTime, picker } = this.props as any;
      const prefixCls = getPrefixCls('picker', customizePrefixCls);

      let additionalOverrideProps: any = {};

      additionalOverrideProps = {
        ...additionalOverrideProps,
        ...(showTime ? getTimeProps({ format, picker, ...showTime }) : {}),
        ...(picker === 'time' ? getTimeProps({ format, ...this.props, picker }) : {}),
      };

      return (
        <SizeContext.Consumer>
          {size => {
            const mergedSize = customizeSize || size;

            return (
              <RCRangePicker<DateType>
                separator={<span aria-label="to" className={`${prefixCls}-separator`} />}
                ref={this.pickerRef}
                placeholder={getRangePlaceholder(picker, locale)}
                suffixIcon={picker === 'time' ? <ClockCircleOutlined /> : <CalendarOutlined />}
                clearIcon={<CloseCircleFilled />}
                allowClear
                transitionName="slide-up"
                {...restProps}
                className={classNames(className, {
                  [`${prefixCls}-${mergedSize}`]: mergedSize,
                  [`${prefixCls}-borderless`]: !bordered,
                })}
                {...additionalOverrideProps}
                locale={locale!.lang}
                prefixCls={prefixCls}
                generateConfig={generateConfig}
                prevIcon={<span className={`${prefixCls}-prev-icon`} />}
                nextIcon={<span className={`${prefixCls}-next-icon`} />}
                superPrevIcon={<span className={`${prefixCls}-super-prev-icon`} />}
                superNextIcon={<span className={`${prefixCls}-super-next-icon`} />}
                components={Components}
                direction={direction}
              />
            );
          }}
        </SizeContext.Consumer>
      );
    };

    render() {
      return (
        <LocaleReceiver componentName="DatePicker" defaultLocale={this.getDefaultLocale}>
          {this.renderPicker}
        </LocaleReceiver>
      );
    }
  }

  return RangePicker;
}