Code review comment for lp:~dandrader/qtmir/appRestart-lp1527737

On 12/01/2016 14:39, Michał Sawicz wrote:
> Review: Needs Fixing
>
> QA found a problem with this and I can confirm on devel-proposed/mako.
>
> Trying to follow steps from Victor [1] I got into a state where unity8 rejects the camera app:
>
> qtmir.applications: ApplicationManager::onProcessStarting(appId="com.ubuntu.camera_camera") - User wants to start a new instance of an application that is still closing and is already queued to start later.
> qtmir.mir: SessionAuthorizer::connection_is_allowed - this= SessionAuthorizer(0xb16defe4) pid= 22192
> qtmir.applications: ApplicationManager::authorizeSession - pid= 22192
> ApplicationManager REJECTED connection from app with pid 22192 as it was not launched by upstart, and no desktop_file_hint is specified
> qtmir.applications: ApplicationManager::onProcessFailed - appId= "com.ubuntu.camera_camera"
> qtmir.applications: ApplicationManager::onProcessStopped - appId= "com.ubuntu.camera_camera"
>
> Victor can confirm the same happened to him with camera and settings apps.
>
> [1] https://trello.com/c/nAccJ8Qd/2639-854-ubuntu-landing-030-gsettings-qt-unity8-qtmir-qtubuntu-saviq

I followed the steps below:

"""

  * Open messaging app.
  * Slide up to create a new message.
  * Tap on the camera icon.
  * In content hub tap on the camera app.
  * Take a photo in the camera app.
  * Tap on the big tick. Returned to the messaging app with the image in
    the text window.
  * Swipe in from the right to reveal the spread.
  * Open spread.
  * Switch to the camera app.

Expected result:

  * Camera app should display the live view.

Actual result:

  * Camera app shows a black screen

"""

A second after switching to camera-app it goes away.
Log shows that camera-app quit (closed itself). Which is expected as it
was summoned by the content hub as a helper and was no longer needed.
Different from the log you got.

In this situation there's nothing unity8 can do. If the app closes
itself shortly after it's focused, I don't think unity8 should go and
restart it.