Delivering escape sequences to outside terminal from unfocused pane

[kilogram]

Issue description

I am trying to use hterm-notify.sh to deliver notifications from a remote. It uses escape sequences to print a command to the local terminal, which interprets it to display a notification. My specific use case is to send a notification when a long-running command, most likely running on a different tmux pane/window, completes.

printf '\033Ptmux;\033\033]777;notify;title;body\a\033\\'

This works from outside and within tmux, if printed from the active window. However, if printed from a pane on another window, it will not trigger a notification.

The full stack is: Secure Shell App on ChromeOS -> Remote over SSH (Arch Linux, xterm-256color) -> tmux.

Steps to replicate

1. SSH to remote.
2. Start a tmux session.
3. Run printf '\033Ptmux;\033\033]777;notify;title;body\a\033\\'. Observe notification works.
4. Run sleep 3 && printf '\033Ptmux;\033\033]777;notify;title;body\a\033\\'
5. Create and switch to a different window within 3 seconds.
6. After >3s, observe no notification.
   tmux-server-370910.log
   tmux-out-370910.log

I'm not sure how to confirm delivery of an escape sequence that doesn't involve a notification, but if you have instructions I'd be happy to try it.

I suspect that it may not be possible to send escape sequences to the outside terminal from within an unfocused tmux pane, but I thought it would be worth confirming.

Required information

• tmux version: tmux 3.0a
• Platform: Linux unknown
• $TERM inside and outside of tmux
  • outside: xterm-256color
  • inside: screen-256color
• Logs from tmux: generated from -Ltest -f/dev/null -vv new
  • tmux-client-370908.log
  • tmux-server-370910.log
  • tmux-out-370910.log

[nicm]

You can't do this by printing from the pane, you might be able to get client_tty and then write it to that.

…

On Fri, 27 Mar 2020, 19:24 Kevin George, ***@***.***> wrote: Issue description I am trying to use hterm-notify.sh <https://chromium.googlesource.com/apps/libapps/+/master/hterm/etc/hterm-notify.sh> to deliver notifications from a remote. It uses escape sequences to print a command to the local terminal, which interprets it to display a notification. My specific use case is to send a notification when a long-running command, most likely running on a different tmux pane/window, completes. printf '\033Ptmux;\033\033]777;notify;title;body\a\033\' This works from outside and within tmux, if printed from the active window. However, if printed from a pane on another window, it will not trigger a notification. The full stack is: Secure Shell App <https://chrome.google.com/webstore/detail/secure-shell-app/pnhechapfaindjhompbnflcldabbghjo?hl=en> on ChromeOS -> Remote over SSH (Arch Linux, xterm-256color) -> tmux. Steps to replicate 1. SSH to remote. 2. Start a tmux session. 3. Run printf '\033Ptmux;\033\033]777;notify;title;body\a\033\\'. Observe notification works. 4. Run sleep 3 && printf '\033Ptmux;\033\033]777;notify;title;body\a\033\\' 5. Create and switch to a different window within 3 seconds. 6. After >3s, observe no notification. tmux-server-370910.log <https://github.com/tmux/tmux/files/4395516/tmux-server-370910.log> tmux-out-370910.log <https://github.com/tmux/tmux/files/4395517/tmux-out-370910.log> I'm not sure how to confirm delivery of an escape sequence that doesn't involve a notification, but if you have instructions I'd be happy to try it. I suspect that it may not be possible to send escape sequences to the outside terminal from within an unfocused tmux pane, but I thought it would be worth confirming. Required information - tmux version: tmux 3.0a - Platform: Linux unknown - $TERM inside and outside of tmux - outside: xterm-256color - inside: screen-256color - Logs from tmux: generated from -Ltest -f/dev/null -vv new - tmux-client-370908.log <https://github.com/tmux/tmux/files/4395518/tmux-client-370908.log> - tmux-server-370910.log <https://github.com/tmux/tmux/files/4395520/tmux-server-370910.log> - tmux-out-370910.log <https://github.com/tmux/tmux/files/4395521/tmux-out-370910.log> — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#2136>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AACKI4YFZTQMQW7RCII55Q3RJT4NPANCNFSM4LVHRYQA> .

[kilogram]

printf $seq > $( tmux display-message -p "#{client_tty}" ) works like a charm. Thank you!

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