Now that we have a list of boards on the main page of the site, let's take a look at what happens when a particular board is clicked. We will need to identify which board has been clicked on, and then show the details of this board on the right-hand side screen. This right-hand side screen will be animated, and will slide in from the right to occupy the whole screen. The animation and transition of screens is already in place, so what we need to do is to somehow get a message from the board-list component through to the rightscreen component to tell it what board to display. We also need to get a message through to our Mediator to tell it to move to the correct state of StateType.DetailPanel.
The Domain Events design pattern allows us to generate events in one part of our application, and have other areas of our application respond to these...