The navigate event contains data about the intended location of the Author API instance and preventDefaultmethod that can be used to halt moving to this location. For example, you might want to prevent the adding of a Question or a Feature to an Item, and handle this in your own way:

var authorApp = LearnosityAuthor.init(initOptions, {
    readyListener: function () {

        authorApp.on("navigate", function (event) {
            var isNewWidgetLocation = event.data.route === "items/new/widgets/new" ||
                                      event.data.route === "items/:reference/widgets/new";
            if (isNewWidgetLocation) {
                myApp.addNewQuestionOrFeature();
                event.preventDefault();
            }
        });

    }
});

Code example 1: preventing the addition of Questions or Features to an Item

Or perhaps you'd only like to use the Author API for browsing and searching a collection of Items, but you'd like to handle the creation and editing of Items in a custom way:

var authorApp = LearnosityAuthor.init(initOptions, {
    readyListener: function () {

        authorApp.on("navigate", function (event) {
            var itemRef;
            if (event.data.route === "items/new") {
                myApp.createNewItem();
                event.preventDefault();
            }
            if (event.data.route === "items/:reference") {

                // Extract the reference from e.g. "items/example-item-ref"
                itemRef = event.data.location.replace(/^(items\/)/, "");

                myApp.openItem(itemRef);
                event.preventDefault();
            }
        });

    }
});

Code example 2: custom handling for the creation and editing of Items

Routes

1. List Activities

2. Create new Activity 

3. Read Activity

4. Search Activities

5. List Items

6. List Items for Activity

7. Search Items

8. Create new Item

9. Create new Item and Activity

10. Create new Item on an Activity

11. Read Item

12. Read Item on an Activity

13. Read Item definition

14. Create widget and Item

15. Create widget on an Item

16. Read widget on an Item

17. Create widget on new Item with parameters

18. Create widget on an Item

19. Overwrite widget on an Item with parameters

20. View settings for an existing Item