This further builds out the Router integration with the platform
Navigation API. Key features in this state include:
* History restoration via direct platform APIs rather than markers left on
`history.state`. This means more guaranteed correctness and less
internal code to compute traversal restorations.
* Ability to observe navigations triggered outside the Router APIs.
Practically speaking, this means some navigations can be performed
through the platform rather than requiring `Router.navigate`. Note
that because the `NavigateEvent` is never intercepted at this point of
the implementation, regular anchor tags cannot be used because they
will still trigger a popstate navigation.
This implementation does _not_ intercept the `NavigateEvent` but future
iterations should. By omitting the interception, we are missing out on
features such as:
* Platform-supported scroll and focus reset
* Holding the navigate event open for the duration of the router
navigation, allowing for a visual loading indicator in the browser
* Support for intercepting navigations from regular anchor tags (e.g.
not `RouterLink`s) and converting those to SPA navigations.
PR Close#64905
These helpers are often imported by various tests throughout the
repository, but the helpers aren't exported/exposed from the public
entry-point; even though they confusingly reside in there.
This commit fixes this, and moves the helpers into
`packages/private/testing`. This is a preparation for the `ts_project`
migration where we don't want to leverage deep imports between packages.
PR Close#61472
There is nothing in the Router that requires ZoneJS and we do not need
`fakeAsync` as a mock clock. We can instead use any mock clock implementation
to speed up test execution.
This removes ZoneJS completely from the bundle of the Router tests.
ZoneJS causes the stacks to be unreadable when combined with the massive
rxjs stack in the router transition.
PR Close#61078