Use case

I want to implement a custom widget that can close the current route using a gesture. One of my requirements is that the gesture is not accepted, if the current route can't be popped using a gesture (aka its popDisposition is .doNotPop).

Unfortunately, I found no way to keep my widget updated, since depending on ModalRoute.of(context) doesn't trigger a rebuild when the popDisposition changes, and its Notifications bubble upwards, so the route's contents can't receive them.

Proposal

Add popDisposition as an aspect to the respective InheritedModel so that we can depend on it reliably.