input.coffee

window.stoppingPropagation = (callback) -> (e) ->
  e.stopPropagation()
  callback(e)
  
angular.module('myApp',[]).directive 'ngTap', ->
  (scope, element, attrs) ->
    tapping = false
    element.bind 'touchstart', stoppingPropagation (e) -> tapping = true
    element.bind 'touchmove', stoppingPropagation (e) -> tapping = false
    element.bind 'touchend', stoppingPropagation (e) -> scope.$apply(attrs['ngTap']) if tapping

output.js

window.stoppingPropagation = function(callback) {
  return function(e) {
    e.stopPropagation();
    return callback(e);
  };
};
angular.module('myApp', []).directive('ngTap', function() {
  return function(scope, element, attrs) {
    var tapping;
    tapping = false;
    element.bind('touchstart', stoppingPropagation(function(e) {
      return tapping = true;
    }));
    element.bind('touchmove', stoppingPropagation(function(e) {
      return tapping = false;
    }));
    return element.bind('touchend', stoppingPropagation(function(e) {
      if (tapping) {
        return scope.$apply(attrs['ngTap']);
      }
    }));
  };
});