The pathway of information within an AngularJS modal window

Recently, I developed a small demo to demonstrate how to open a modal window in Angular using a directive as the template.

However, I have some doubts about the way I am passing data and functions to the modal.

Here is the code snippet from the opening controller:

$scope.openModal = function($event){
    $scope.items = [1,2,3,4,5];
    $scope.modalInstance = $modal.open({
        template: '<modalwindow></modalwindow>',
        scope:$scope,
        test:'akex'
});

$scope.modalInstance.result.then(function (selectedItem) {
    console.info(selectedItem);
}, function () {
    console.info('Modal dismissed at: ' + new Date());
});

And here is the code for the modal directive:

angular.module('angModalApp')
.directive('modalwindow', function () {
    return {
        templateUrl: 'scripts/directives/modalwindow.tmpl.html',
        restrict: 'E',
        link: function postLink(scope, element, attrs) {
            scope.ok = function () {
                scope.modalInstance.close(["a","b","c"]);
            };

            scope.cancel = function () {
                scope.modalInstance.dismiss('cancel');
            };
}
};
});

I would like to hear your thoughts on this approach to using modals. Do you think there is a better way to achieve the same result?

Thank you for taking the time to read this.

You can find the source code of the project at: https://github.com/trostik/angular-modal-window-demo

Answer №1

If you're looking for a reliable option, I suggest trying out Angular-UI/bootstrap. You can find more information about it here: http://angular-ui.github.io/bootstrap/

In my experience, it's user-friendly and dependable.

Answer №2

If you want to effectively transfer data into directives like this, the recommended approach is through an isolate scope.

Citing from http://docs.angularjs.org/guide/directive:

<!doctype html>
<html ng-app="docsIsolateScopeDirective">
  <head>
    <script src="http://code.angularjs.org/1.2.0-rc.3/angular.min.js"></script>
    <script src="script.js"></script>
  </head>
  <body>
    <div ng-controller="Ctrl">
      <my-customer customer="naomi"></my-customer>
      <hr>
      <my-customer customer="igor"></my-customer>
    </div>
  </body>
</html>

Observe how they are employing custom attributes on the directive myCustomer to send data from the scope of the controller Ctrl.

The directive definition should utilize the scope option in order to access this data:

.directive('myCustomer', function() {
  return {
    restrict: 'E',
    scope: {
      customer: '=customer'
    },
    templateUrl: 'my-customer.html'
  };
});

In the example under scope, it specifies customer. The notation =customer instructs Angular to establish a two-way data binding between the data specified as an attribute and a property on the isolate scope of the directive, which is referred to as customer. Alternatively, you can simply use = for a more concise method, where the reference on the directive's scope will have the same name as the attribute. For data that should not be altered within the directive, utilize the @ symbol instead of =; and for passing functions, employ the & symbol.

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