ant-design/components/date-picker/generatePicker/generateSinglePicker.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 RCPicker from 'rc-picker';
import { PickerMode } from 'rc-picker/lib/interface';
import { GenerateConfig } from 'rc-picker/lib/generate/index';
import enUS from '../locale/en_US';
import { getPlaceholder, transPlacement2DropdownAlign } from '../util';
import devWarning from '../../_util/devWarning';
import { ConfigContext, ConfigConsumerProps } from '../../config-provider';
import LocaleReceiver from '../../locale-provider/LocaleReceiver';
import SizeContext from '../../config-provider/SizeContext';
import {
  PickerProps,
  PickerLocale,
  PickerDateProps,
  PickerTimeProps,
  getTimeProps,
  Components,
} from '.';
import { PickerComponentClass } from './interface';
import { FormItemInputContext } from '../../form/context';
import {
  getFeedbackIcon,
  getMergedStatus,
  getStatusClassNames,
  InputStatus,
} from '../../_util/statusUtils';

export default function generatePicker<DateType>(generateConfig: GenerateConfig<DateType>) {
  type DatePickerProps = PickerProps<DateType> & {
    status?: InputStatus;
  };

  function getPicker<InnerPickerProps extends DatePickerProps>(
    picker?: PickerMode,
    displayName?: string,
  ) {
    class Picker extends React.Component<InnerPickerProps> {
      static contextType = ConfigContext;

      static displayName: string;

      context: ConfigConsumerProps;

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

      constructor(props: InnerPickerProps) {
        super(props);
        devWarning(
          picker !== 'quarter',
          displayName!,
          `DatePicker.${displayName} is legacy usage. Please use DatePicker[picker='${picker}'] directly.`,
        );
      }

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

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

      renderFeedback = (prefixCls: string) => (
        <FormItemInputContext.Consumer>
          {({ hasFeedback, status: contextStatus }) => {
            const { status: customStatus } = this.props;
            const status = getMergedStatus(contextStatus, customStatus);
            return hasFeedback && getFeedbackIcon(prefixCls, status);
          }}
        </FormItemInputContext.Consumer>
      );

      renderSuffix = (prefixCls: string, mergedPicker?: PickerMode) => (
        <>
          {mergedPicker === 'time' ? <ClockCircleOutlined /> : <CalendarOutlined />}
          {this.renderFeedback(prefixCls)}
        </>
      );

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

        const additionalProps = {
          showToday: true,
        };

        let additionalOverrideProps: any = {};
        if (picker) {
          additionalOverrideProps.picker = picker;
        }
        const mergedPicker = picker || this.props.picker;

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

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

              return (
                <FormItemInputContext.Consumer>
                  {({ hasFeedback, status: contextStatus }) => (
                    <RCPicker<DateType>
                      ref={this.pickerRef}
                      placeholder={getPlaceholder(mergedPicker, locale, placeholder)}
                      suffixIcon={this.renderSuffix(prefixCls, mergedPicker)}
                      dropdownAlign={transPlacement2DropdownAlign(direction, placement)}
                      clearIcon={<CloseCircleFilled />}
                      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`} />}
                      allowClear
                      transitionName={`${rootPrefixCls}-slide-up`}
                      {...additionalProps}
                      {...restProps}
                      {...additionalOverrideProps}
                      locale={locale!.lang}
                      className={classNames(
                        {
                          [`${prefixCls}-${mergedSize}`]: mergedSize,
                          [`${prefixCls}-borderless`]: !bordered,
                        },
                        getStatusClassNames(
                          prefixCls,
                          getMergedStatus(contextStatus, customStatus),
                          hasFeedback,
                        ),
                        className,
                      )}
                      prefixCls={prefixCls}
                      getPopupContainer={customizeGetPopupContainer || getPopupContainer}
                      generateConfig={generateConfig}
                      components={Components}
                      direction={direction}
                    />
                  )}
                </FormItemInputContext.Consumer>
              );
            }}
          </SizeContext.Consumer>
        );
      };

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

    if (displayName) {
      Picker.displayName = displayName;
    }

    return Picker as PickerComponentClass<InnerPickerProps>;
  }

  const DatePicker = getPicker<DatePickerProps>();
  const WeekPicker = getPicker<Omit<PickerDateProps<DateType>, 'picker'>>('week', 'WeekPicker');
  const MonthPicker = getPicker<Omit<PickerDateProps<DateType>, 'picker'>>('month', 'MonthPicker');
  const YearPicker = getPicker<Omit<PickerDateProps<DateType>, 'picker'>>('year', 'YearPicker');
  const TimePicker = getPicker<Omit<PickerTimeProps<DateType>, 'picker'>>('time', 'TimePicker');
  const QuarterPicker = getPicker<Omit<PickerTimeProps<DateType>, 'picker'>>(
    'quarter',
    'QuarterPicker',
  );

  return { DatePicker, WeekPicker, MonthPicker, YearPicker, TimePicker, QuarterPicker };
}