Keyboard focus issue after navigation between NativeControlHost and Avalonia TextBox

[Vladyslav-vm]

Describe the bug The application is stopped with the exit code 0 if the focus is moved fromNativeControlHost to the Avalonia TextBox control and something is typed.

To Reproduce Steps to reproduce the behavior:

1. Download the attached sample HostingLinuxControlDemoNew.zip

2. Unzip, compile, and launch the application

3. Click the "ClickMe!" button on the "dotnet" window

4. Put the focus on the Avalonia TextBox control and type something

5. The application is exited with code 0

Expected behavior Without issues, the focus should be moved between NativeControlHost and Avalonia TextBox and it should be possible to type in the "TextBox" control.

Desktop (please complete the following information):

• OS: Linux Ubuntu 20.04
• Version 11.0.0-rc1.1 (the same behavior with preview versions)

Additional context The issue is not reproduced with versions 0.10.18-0.10.21

[kekekeks]

Keyboard focus integration isn't supported for X11 (we don't implement XEmbed yet)

[Vladyslav-vm]

Could you please describe how to organize focus transfer between NativeControlHost and an embedded window without XEmbed?

Which approaches do you support?