Which @angular/* package(s) are relevant/related to the feature request?

router

Description

It would be nice if there were signal equivalents to things like data/paramMap/queryParams/routerEvents etc. on the ActivatedRoute and Router.

Currently I have to do a lot of this kinda thing:

activatedRoute = inject(ActivatedRoute)
params = toSignal(this.activatedRoute.paramMap)
queryParams = toSignal(this.activatedRouter.queryParamMap)
userId = computed(() => this.params()?.get('userId'))
viewingTab = computed(() => this.queryParams()?.get('tab'))

Or even sometimes something like this (say if I want to read the params of a child route):

activatedRoute = inject(ActivatedRoute)
router = inject(Router)
routerEvents = toSignal(this.router.events)
userId = linkedSignal({
  source: () => this.routerEvents(),
  computation: () => this.activatedRoute.snapshot.firstChild.paramMap.get('userId')
})

Which can get quite annoying and boilerplatey, and I end up with a lot more things being defined that I really want.

Proposed solution

Be able to access a signal based values of these. I don't have a strong opinion on the naming of such things I'm just prefixing things with signal to illustrate the idea.

activatedRoute = inject(ActivatedRoute)
userId = computed(() => this.activatedRoute.signalParamMap()?.get('userId'))
viewingTab = computed(() => this.activatedRoute.signalQueryParamMap()?.get('tab'))

activatedRoute = inject(ActivatedRoute);
router = inject(Router)
userId = linkedSignal({
  source: () => this.router.signalEvents(),
  computation: () => this.activatedRoute.snapshot.firstChild.paramMap.get('userId')
})

This assumes that the signal and observable properties would live next to each other in the existing class.

Alternatives considered

Have different injectables eg. SignalActivatedRoute/SignalRouter or maybe even better would be something like import {ActivatedRoute, Router} from '@angular/router/signals' so that then you just need to change your return type.

Just to note that I'm only suggesting these things because they are the ones that I use the most often might be more router related things that could benefit from this that I'm not aware of.