Cannot add right segment for 'tmux-prefix-highlight'

[louis-hsu]

Hi, the theme is simple and elegant with versatile customization capability. Nevertheless encounter one issue when applying one 3rd tmux plugin.

Setup in .tmux.conf

1. Use TPM for tmux plugin management/installation and configure nova theme as

   set -g @plugin 'o0th/tmux-nova' 
   
   set -g @nova-segment-novatime "%Y-%m-%d %H:%M"
   set -g @nova-segments-0-right "novatime whoami"

   And the result shown as:

   

2. Then install 'tmux-prefix-highlight' and add to right segment

   set -g @plugin 'o0th/tmux-nova'    
   set -g @plugin 'tmux-plugins/tmux-prefix-highlight' 
   
   set -g @nova-segment-novatime "%Y-%m-%d %H:%M"
   set -g @nova-segment-actionprefix "#{prefix_highlight}"
   set -g @nova-segments-0-right "actionprefix novatime whoami"

Symptom

1. Click prefix + I to install the pluging/configuration via TPM, the segment shows:

   

2. Click prefix + U to update the plugin/reload configuration via TPM, the segment restores to original presentation:

   

3. Type tmux source ~/.tmux.conf in the session, the segment doesn't change.

4. Click prefix, the expected 'prefix-highlight' segment doesn't show up

5. Quit tmux session, kill tmux server and restart a new session, the right segment shows as original one and no 'prefix-highlight' segment shows up when clicking prefix

Please let me know if futher test/info required, and thanks for your assistance.

[arrrgi]

@louis-hsu - I think the issue may be with the 'tmux-prefix-highlight' plugin, I tried another official plugin 'tmux-plugins/tmux-cpu' and this worked fine when I added it to @nova-segments-0-right with "cpu whoami"

Sadly, the prefix plugin is no longer maintained.

[arrrgi]

Perhaps @o0th you could add this feature into tmux-nova directly using the newer syntax. I'm not comfortable enough on the changes required to make this work for a PR sorry. Best left to the experts 😄

[o0th]

Hi @louis-hsu, thank you for opening this issue! Apparently, tmux-prefix-highlight is incompatible with tmux-nova. I could make it work by changing a few lines in the plugin source code, but I was not too fond of the general behavior.

@arrrgi: I think it is possible to have a similar implementation without touching the source code tmux-nova and without writing a plugin

set -g @nova-segment-action-prefix "#{?client_prefix,^B,}#{?#{==:#{pane_mode},copy-mode}, ^C,}#{?#{==:#{pane_mode},view-mode}, ^V,}"

Let me know what you think about it!

[arrrgi]

Thanks @o0th set -g @nova-segment-action-prefix "#{?client_prefix,^B,}#{?#{==:#{pane_mode},copy-mode}, ^C,}#{?#{==:#{pane_mode},view-mode}, ^V,}" worked.

I wonder if you also know how I get the status to show if the panes are in sync mode with this? (currently I have this bound as Prefix + Ctrl X)

[o0th]

Adding #{?synchronize-panes,^S,} to the @nova-segment-action-prefix will do :)

[arrrgi]

Thanks, worked great!

[louis-hsu]

Hi @o0th and @arrrgi , thanks for the help and it works! Nevertheless, found anothe symptom after following suggestion to set new right segment for prefix (with minor tweaks):

1. Pressing prefix
2. Pressing bound key (mine is Esc) to enter Copy mode
3. Then pressing prefix again

The similar symptom for synchronization mode

I tried to trace tmux-prefix-highlight source code to see how to reload the segment correctly but no clue yet...

[o0th]

Hi @louis-hsu, sorry for the waiting time; I could not dedicate time to this till now. You could try this:

set -g @nova-segment-action-prefix "#{?client_prefix,^B,#{?#{==:#{pane_mode},copy-mode},^C,}#{?#{==:#{pane_mode},view-mode},^V,}#{?synchronize-panes,^S,}}"

[louis-hsu]

Hi @o0th, it works! Thanks a lot!