Scenario is to - Open a dropdown, then move focus from the browser window - The dropdown may or may not close - On return to the window, the dropdown may still be open, but without any focus within it - Because of this, the dropdown can't get an onBlur event, because it isn't focused - It will stay open until an onBlur event, which can only occur if the user tabs back to the input to focus it and then click away AC - Dropdown checks every render if it is open AND not focused - If it is open without focus, it calls the onBlur function so the user can be notified