Detect popstate vs push/replace in navigation guards

[posva]

It would be useful to detect if navigation comes from interaction within the app (router.push()) or outside of it (history.back()).

The API is still to be decided and should be the same on v4 and v3, probably something inside of the to parameter of navigation guards

router.beforeEach((to, from, next) => {
  to.navigation.type // 'pop' | 'push'
  to.replace // true | false
  to.navigation.direction // number

Related #1620

[KaelWD]

I'd also like to be able to tell the difference between router.back() vs the browser back button being pressed.

[rezaffm]

Any update?

[posva]

this and any other current route information will have to wait for https://github.com/WICG/navigation-api to become stable in terms of API so we can provide an API that aligns with it (namely using transient information) and avoid breaking changes as much as possible. Locking until then