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Building the Commands > The Add Item Command
When the user adds an item in the Timeline or Details components (such as adding a Chapter
to a Part, or a Note to a Scene), the AddItemCommand is executed. Based on the
type of AppEvent (e.g. AppEvent.ADD_CHAPTER or AppEvent.ADD_NOTE), it will add the
appropriate item and select it in the SelectionContext.
-
Extend
SimpleCommand -
Get the
AppEventfrom theNotificationbody -
Retrieve the
SelectionContextfrom its transientProxy -
If the
typeof theAppEventisADD_PART, get the selected Story, call itsgetNewPart()method, then call theSelectionContext’sselectStory()method withnullfollowed by the selected Story, causing the view hierarchy to redraw with the new Part shown
