application menu box can't close

[LIU Aifu]

Reproduction step:

1.Start a VirtualBox client os
2.Open Gedit(or any other program), minimize or switch VirtualBox windows to front
3.Long touch the icon of Gedit on icon bar

Then a menu box popped, and can't close.

My os is UBUNTU18.10

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1817652/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Daniel van Vugt (vanvugt)]

This bug might be related to input grabbing that the VirtualBox window does, and that might prevent the dock (or gnome-shell in general) from getting a grab that it needs to detect exterior clicks for closing the menu.

What if you just click the app icon, does that close it?

[Launchpad Janitor (janitor)]

[Expired for gnome-shell-extension-ubuntu-dock (Ubuntu) because there has been no activity for 60 days.]