Function withSelectionGuard

packages/shared/src/lib/click.ts:31–44

(
  handler: React.MouseEventHandler<T>,
)

// navigating away on mouseup. This guard preempts that navigation when the
// click is the tail end of a text selection gesture.
export const withSelectionGuard = <T = HTMLAnchorElement>(
  handler: React.MouseEventHandler<T>,
): React.MouseEventHandler<T> => {
  return (event) => {
    const selection = globalThis?.window?.getSelection();
    const hasSelection =
      !!selection && selection.anchorOffset !== selection.focusOffset;
    if (hasSelection) {
      event.preventDefault();
      return;
    }
    handler(event);
  };
};