GUI doesn't reopen after closing it

[HelenClifton]

Expected behavior

@forman, @hans-permana
Cate GUI is open
Selected File->Exit
Selected Exit again to confirm
GUI closes
Double-click Cate Desktop.
Expect GUI to re-open.

Actual behavior

GUI doesn't re-open.
Looking in Windows Task Manager, can see two cate desktop processes still running.

As a workaround, these can be ended manually using "End Process" in Windows Task Manager, then the GUI will open.

Another feature is that if the user selects "Do not ask me again" in the cate exit dialog

then the problem goes away after the GUI has been opened then closed again.

Steps to reproduce the problem

See above.
Looks similar to #636

Specifications

Cate-2.0.0-dev.19
Windows 7 Professional

[forman]

Thanks Helen. This is so frustrating. Thought this was fixed. Can't think of any code changes in that part.

[forman]

Can't reproduce this. What if you wait a minute before starting Cate Desktop once more?

[forman]

@HelenClifton was it a clean install or an auto-update from dev18 to dev19. Are you sure that dev18 behaved different?

[forman]

@HelenClifton can you please confirm, this does not happen, if you exit using the main window close icon.
Have you tested Mac and Linux?

[forman]

Here are possibly related Electron issues:

• After app.quit() atom process keeps running electron/electron#1322
• app.quit() can't terminate electron.exe in 'ready' event handler without any window created electron/electron#2312

[forman]

Just compared the log files from the Cate Desktop development version. Left is window close, right is exit from file menu (calls electron.app.quit():

Looks as it should! In both case, the backend is shut down.

And here is the packaged Cate Desktop. Again left is window close, right is exit from file menu:

clearly showing the problem.

[forman]

oops

[HelenClifton]

Hi @forman Here's some more info

• I have only tested on Windows
• I did see the issue using dev. 16
• With dev. 19 I saw the issue in both cases
  - with an auto-update (from dev. 16 to dev.19)
  - a clean install of dev.19
• It does not happen if the GUI is closed using close icon on top right.
• It does happen if GUI is closed using File->Exit and then confirming the exit. Waiting for a while before re-opening the GUI doesn't help.
• When the GUI is closed using File->Exit and the "Do not ask me again" box is checked, the problem no longer occurs.

[forman]

@HelenClifton we have a fix in 2.0.0-dev.20, to be released later today.

[HelenClifton]

@forman Confirmed fixed in dev.20. closing it.