//Put this on a button to make it the default
.directive('autoEnterDirective', ['$document', function($document) {
return {
  scope: {
      autoEnterDirective: "&"
  },
  link: function(scope, element, attrs) {
    var enterWatcher = function(event) {
      if (event.which === 13) {
        scope.autoEnterDirective();
        scope.$apply();
        ///console.log('ENTER')
        event.preventDefault();
        $document.unbind("keydown keypress", enterWatcher);
      }
    };
    $document.bind("keydown keypress", enterWatcher);
  }
}
}])

<a id="btnFind" class="button small box-shadow-inset" auto-enter-directive="findModal()" ng-click="findModal()">Find</a>

<a id="btnFind" class="button small box-shadow-inset" auto-enter-directive="findModal()" ng-click="findModal()">Find</a>