Labelling Calendar with Events

[emm-an-uel]

Hey, I'm trying to achieve something similar to the image I've attached, which has events added to the calendar. I'm thinking I could do this by creating a custom Span class as shown here in stackoverflow.

However, my issue is that DayViewDecorator.decorate doesn't know which date it's currently decorating, so I can't pass specific event names to it. Is there a way I could achieve this? Cheers