Job control: process running from pipe doesn't get focus

[Maksym Telychko]

From: maksym
To: bug-bash@gnu.org
Subject: Job control: process running from pipe doesn't get focus

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -march=x86-64 -mtune=generic -O2 -pipe -fno-plt 
-fexceptions         -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security   
      -fstack-clash-protection -fcf-protection -g 
-ffile-prefix-map=/build/bash/src=/usr/src/debug/bash -flto=auto 
-DDEFAULT_PATH_VALUE='/usr/local/sbin:/usr/local/bin:/usr/bin' 
-DSTANDARD_UTILS_PATH='/usr/bin' -DSYS_BASHRC='/etc/bash.bashrc' 
-DSYS_BASH_LOGOUT='/etc/bash.bash_logout' -DNON_INTERACTIVE_LOGIN_SHELLS
uname output: Linux inspiron 6.1.61-1-lts #1 SMP PREEMPT_DYNAMIC Thu, 02 Nov 
2023 12:57:06 +0000 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu

Bash Version: 5.2
Patch Level: 21
Release Status: release

Description:
        Process does not become foreground when run from a pipe.

Repeat-By:
    Conditions are very special, and I am not sure who in the chain is cause of 
bug.

    In short the bug in the following line, but it should executed not from a 
running terminal emulator:
        uxterm -e bash -c 'echo /etc/fstab | { FILE="$(cat)" ; sudoedit "$FILE" 
; }'
    It line of script must be run automatically from the WM.

    The chain to reproduce:
    
    | sway wm |     | uxterm    |     |  bash  ... sudoedit |
    | i3 wm   | --> | alacritty |  -> |                     |
    | weston  |     |           |     |                     |

    swaywm config file:
        exec_always uxterm -e bash -c 'echo /etc/fstab | { FILE="$(cat)" ; 
sudoedit "$FILE" ; }'

    If sudoedit running not from a pipe, it works good. Some of terminal 
emulators do not reproduces
    the problem, such as `foot` or `xfce4-terminal`.

    The result of the chain is an editor isn't gain a focus and I cant type 
anything.

    Again, I'm not sure that is definetely bash, but could you please check 
that. Thank you.