Skip to content

Instantly share code, notes, and snippets.

What would you like to do?
tmux-vim integration to transparently switch between tmux panes and vim split windows tmux based version that does not require a vim plugin

Based on Mislav's gist and vim-tmux-navigator.

Since tmux hosts vim I disliked that I had to install a vim plugin for this. Instead I think it's cleaner to control vim from tmux.

My actual goal was to achive the following behaviour though (I have a default setup similar to the one Mislav shows in the gist. Two vertically split tmux panes, where the left one hosts vim, which has two vertically split windows):

  • On the leftmost window in vim: when I hit C-h (do not wrap to the rightmost tmux pane, but) zoom the left tmux pane.
  • On the rightmost tmux pane: when I hit C-l (do not wrap to the leftmost tmux pane, but) zoom the right tmux pane.
  • All other navigation: work as given in Mislav's gist

I guess the toggle between last active panes behaviour has slightly changed, but I'm not sure how it's supposed to work exactly and I don't use it much anyway.

#!/usr/bin/env bash
cmd="$(tmux display -p '#{pane_current_command}' | xargs basename | tr A-Z a-z)"
[ "${cmd%m}" = "vi" ] && vim=true || vim=false
pane="$(tmux display -p '#{pane_index}')"
pane=$[ pane + 1 ]
panes="$(tmux display -p '#{window_panes}')"
if [[ "$@" = "-L" && $pane == 1 || "$@" = '-R' && $pane == $panes ]]; then
cmd="tmux resize-pane -Z"
cmd="tmux select-pane $@"
if $vim; then
wincmd="$(echo "${1#-}" | tr 'lLDUR' 'phjkl')"
tmux send-keys ":let nr = winnr() | wincmd $wincmd" C-m
tmux send-keys ":if nr == winnr() | silent call system(\"$cmd\") | end"
tmux send-keys C-m ':echo "\r"' C-m
bind -n C-k run-shell 'tmux-vim-select-pane -U'
bind -n C-j run-shell 'tmux-vim-select-pane -D'
bind -n C-h run-shell 'tmux-vim-select-pane -L'
bind -n C-l run-shell 'tmux-vim-select-pane -R'
bind -n C-\ run-shell 'tmux-vim-select-pane -l'

This comment has been minimized.

Copy link
Owner Author

@svenfuchs svenfuchs commented Aug 3, 2013

There's one oddity on lines 19 and 20. If I send C-m at the end of line 19 then it will mess up my vim view. Sending it at the beginning of line 20 works. Pretty curious.


This comment has been minimized.

Copy link

@amiel amiel commented Apr 25, 2014

@svenfuchs thanks for this!

I just thought I'd note here that I forked christoomey/vim-tmux-navigator to include this zoom functionality (see amiel/vim-tmux-navigator). My fork requires ruby, but sends the commands to vim without using :, which makes it work in insert mode.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment