insomnia/packages/insomnia-app/app/ui/components/hotkey.js

// @flow
import * as React from 'react';
import classnames from 'classnames';
import type { Hotkey as HotkeyType } from '../../common/hotkeys';
import * as hotkeys from '../../common/hotkeys';
import { ALT_SYM, CTRL_SYM, isMac, joinHotKeys, MOD_SYM, SHIFT_SYM } from '../../common/constants';

type Props = {
  hotkey: HotkeyType,

  // Optional
  className?: string,
};

class Hotkey extends React.PureComponent<Props> {
  render() {
    const { hotkey, className } = this.props;
    const { alt, shift, meta, metaIsCtrl } = hotkey;
    const chars = [];

    alt && chars.push(ALT_SYM);
    shift && chars.push(SHIFT_SYM);

    if (meta) {
      if (metaIsCtrl) {
        chars.push(CTRL_SYM);
      } else {
        chars.push(isMac() ? MOD_SYM : CTRL_SYM);
      }
    }

    chars.push(hotkeys.getChar(hotkey));

    return (
      <span className={classnames(className, { 'font-normal': isMac() })}>
        {joinHotKeys(chars)}
      </span>
    );
  }
}

export default Hotkey;