Function getNextElement

packages/react-aria/src/radio/useRadioGroup.ts:93–120

(nextDir: 'next' | 'prev', e)

  });

  function getNextElement(nextDir: 'next' | 'prev', e) {
    let walker = getFocusableTreeWalker(e.currentTarget, {
      from: getEventTarget(e) as Element,
      accept: node => node instanceof getOwnerWindow(node).HTMLInputElement && node.type === 'radio'
    });
    let nextElem;
    if (nextDir === 'next') {
      nextElem = walker.nextNode();
      if (!nextElem) {
        walker.currentNode = e.currentTarget;
        nextElem = walker.firstChild();
      }
    } else {
      nextElem = walker.previousNode();
      if (!nextElem) {
        walker.currentNode = e.currentTarget;
        nextElem = walker.lastChild();
      }
    }

    if (nextElem) {
      // Call focus on nextElem so that keyboard navigation scrolls the radio into view
      nextElem.focus();
      state.setSelectedValue(nextElem.value);
      return true;
    }
    return false;
  }

  let {keyboardProps} = useKeyboard({
    shortcuts: {