In this function, you are expected to add a DOM element to the tree which will serve as the "host" for the modal's composed view. You must add a property called host to the modalWindow object which references the dom element. It is this host which is passed to the composition module.
The dialog model.
any
This function is called after the modal is fully composed into the DOM, allowing your implementation to do any final modifications, such as positioning or animation. You can obtain the original dialog object by using getDialog on context.model.
The dialog view.
The parent view.
The composition context.
any
This function is expected to remove any DOM machinery associated with the specified dialog and do any other necessary cleanup.
The dialog model.
any