Fixes with umb-route-slot inside routed modal

[enkelmedia]

Description

This provides a potential fix for the issue described here: umbraco/Umbraco-CMS#16834

I'm thinking that the problem might be that the event that is fired when the route changes fires before the umb-route-slot inside the modal has been loaded. I tried some hacks with setTimeout to trigger the "routes"-attribute to re-load the routes in the modal. This worked so i figured that maybe if we set the routes of the underlying router-slot when a new route is loaded it might solve the problem.

I made a small change to the firstUpdated method of UmbRouterSlotElement and after this, the scenario that I was having trouble with works.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (minor updates related to the tooling or maintenance of the repository, does not impact compiled assets)

Motivation and context

How to test?

I've also added a example-folder to the PR, so just run

npm run example

And pick modal routed

Checklist

• If my change requires a change to the documentation, I have updated the documentation in this pull request.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[nielslyngsoe]

Hi @enkelmedia

I had a look at this one, there is clearly a problem. I did not manage to boil it down just jet.

But its clear that the modal does not act correct.

For starters it should go away when navigating browser history.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud