Location trust store causes dash to hang

[taiebot65]

Started on r.211 reproducible r.212
How to reproduce.

In your favorites scopes you should have Apps, My Music and The Weather Channel scopes.
There should be some local music and it should appear in my music

Bug Phone will hang wen entering the weather channel scope.

Go to my music scope( by defaults it is set on Artist) set the album view
Click on an album in the scope view go back using the top arrow to the scope view, move in the scopes in the direction of the weather channel scope.

As soon as you enter the weather channel scope the screen is divided in between the two scope and you cannot exit this screen. You can still access other apps via the left launcher and launch them successfully.

Some pictures of the bug.
http://i.imgur.com/Nsq8BvC.png
http://tinyurl.com/npd9mex

[Michał Sawicz (saviq)]

This is because the weather scope tries to access location data and apparently the location trust prompt didn't work for you.

[Michał Sawicz (saviq)]

Can you please try these steps on the phone (as phablet):
⟫ stop ubuntu-location-service-trust-stored
⟫ rm -R .local/share/UbuntuLocationService/
⟫ start ubuntu-location-service-trust-stored

And try going to weather again?

[taiebot65 (dedreuil)]

I had the prompt enabled it but when i re-did the step as per the bug it happened again. maybe the location service is crashing also

[taiebot65 (dedreuil)]

Killing unity8-dash makes the phone re-usable.
I can go to the weather app normally its only when i go to the music scope and in the album view that this triggers the weather app to crash.

[Michał Sawicz (saviq)]

OK I got your steps reproduced and yes it's definitely related to the location and the prompt for whether you allow the scope to get your location or not.

It seems like the interrupted input stream gets the dash into a between-scopes state. It doesn't seem to be deadlocked or anything, just some logic gets confused.

And for some crazy reason, your steps need to be followed exactly... If any of the steps is not taken, things work fine. The combination of a changed department and a preview is a prerequisite for this to happen.

[Michał Sawicz (saviq)]

OK it doesn't seem to be input related, the thing gets locked up even without the trusted prompt, with location being disabled on the weather scope... This is getting fishy.

[Michał Sawicz (saviq)]

I've filed bug #1366978 to get a retrace from the dash in this bad state, let's see. But I'm adding a unity-scopes-api task as I'm starting to think this might be happening somewhere there potentially.

[Michał Sawicz (saviq)]

I'm marking this as duplicate 'cause there's more details on the other bug.