A generic window resize directive to which you can add to any element to call a function on your controller

windowResize.coffee

angular.module('something')
  
  .directive 'windowResize', ($window, $parse) ->
    restrict: 'A'
    
    link: (scope, element, attrs) ->
      w = angular.element($window)
      fn = $parse(attrs['windowResize'])
      
      handler = (event) ->
        scope.$apply ->
          fn(scope, {$event:event})
      
      w.bind 'resize', handler
      
      scope.$on '$destroy', ->
        w.unbind 'resize', handler