How View updates Model?

Following this article There are two schools of thought with regard to whether the View interacts directly with the Model or not.

I'm interested in the case where View don't interact with Model. If only Controller knows about View but not View knows about Controller we can easily update View with Model data (write some text, for ex.) by calling View and Model methods in Controller.

But how could Controller and Model react to View changes (button push, for ex.) if View don't know about Controller or Model?