Function handleKeyDown

src/components/UncontrolledTabs.jsx:263–333

(e)

  }

  function handleKeyDown(e) {
    const { direction, disableUpDownKeys, disableLeftRightKeys } = props;
    if (isTabFromContainer(e.target)) {
      let { selectedIndex: index } = props;
      let preventDefault = false;
      let useSelectedIndex = false;

      if (
        e.code === 'Space' ||
        e.keyCode === 32 /* space */ ||
        e.code === 'Enter' ||
        e.keyCode === 13 /* enter */
      ) {
        preventDefault = true;
        useSelectedIndex = false;
        handleClick(e);
      }

      // keyCode is deprecated and only used here for IE

      if (
        (!disableLeftRightKeys &&
          (e.keyCode === 37 || e.code === 'ArrowLeft')) /* arrow left */ ||
        (!disableUpDownKeys &&
          (e.keyCode === 38 || e.code === 'ArrowUp')) /* arrow up */
      ) {
        // Select next tab to the left, validate if up arrow is not disabled
        if (direction === 'rtl') {
          index = getNextTab(index);
        } else {
          index = getPrevTab(index);
        }
        preventDefault = true;
        useSelectedIndex = true;
      } else if (
        (!disableLeftRightKeys &&
          (e.keyCode === 39 || e.code === 'ArrowRight')) /* arrow right */ ||
        (!disableUpDownKeys &&
          (e.keyCode === 40 || e.code === 'ArrowDown')) /* arrow down */
      ) {
        // Select next tab to the right, validate if down arrow is not disabled
        if (direction === 'rtl') {
          index = getPrevTab(index);
        } else {
          index = getNextTab(index);
        }
        preventDefault = true;
        useSelectedIndex = true;
      } else if (e.keyCode === 35 || e.code === 'End') {
        // Select last tab (End key)
        index = getLastTab();
        preventDefault = true;
        useSelectedIndex = true;
      } else if (e.keyCode === 36 || e.code === 'Home') {
        // Select first tab (Home key)
        index = getFirstTab();
        preventDefault = true;
        useSelectedIndex = true;