var isSelectFocussed=false;

var inside = false;

​

function onMouseOut() {

   !isSelectFocussed && (document.getElementById('result').innerHTML = 'out');

}

​

document.getElementById('parent')

  .addEventListener('mouseleave', function() {

  onMouseOut();  

  inside = false;

})

document.getElementById('parent')

  .addEventListener('mouseover', function() {

  document.getElementById('result').innerHTML = 'in';

  inside = true;

});

document.querySelector('select')

 .addEventListener('focus', function() {

  isSelectFocussed = true;

});

document.querySelector('select')

 .addEventListener('blur', function() {

  isSelectFocussed = false;

  !inside && onMouseOut();

});