Angular Safe Apply - https://coderwall.com/p/ngisma

gistfile1.js

$scope.safeApply = function(fn) {
  var phase = this.$root.$$phase;
  if(phase == '$apply' || phase == '$digest') {
    if(fn && (typeof(fn) === 'function')) {
      fn();
    }
  } else {
    this.$apply(fn);
  }
};

gistfile2.js

//And then just replace $apply with safeApply wherever you need it

$scope.safeApply(function() {
  alert('Now I'm wrapped for protection!');
});