TMUX: better mouse support

Continuing my TMUX series, this time we will add better mouse support to your TMUX. (I also works over SSH if your local machine has a mouse).

You will add following functionality to your mouse:

• Resize panels draging on borders
• Select active panel with left click
• Zoom panel with right click
• Create window with right click on status bar
• Drag and interchange panels
• Drag windows
• Close panels with mouse-wheel click
• Close windows on the status bar with mouse-whell click

Mouse image taken from pixabay.


Install a theme

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The same as last time: edit the tmux.conf file, save it, and finally tell TMUX to reload it.

$ gedit ~/.tmux.conf
$ tmux -f ~/.tmux.conf

Mouse configuration

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################################################################################
##                              MOUSE CONFIGURATION                           ##
################################################################################

## ENABLE MOUSE
setw -g mouse on


## Mouse scroll
## If already in copy mode send mouse event x3
## else if program is capturing mouse, simulate mouse with up strokes
## else (in normal tmux) enter copy mode
bind-key -n WheelUpPane \
 if-shell -Ft= "#{?pane_in_mode,1,#{?mouse_button_flag}}" \
  "send-keys -Mt=; send-keys -Mt=; send-keys -Mt=" \
  "if-shell -Ft= '#{alternate_on}' \
   'send-keys -t= ^y ^y ^y' \
   'copy-mode -e -t='"
bind-key -n WheelDownPane \
 if-shell -Ft= "#{?pane_in_mode,1,#{?mouse_button_flag}}" \
  "send-keys -Mt=; send-keys -Mt=; send-keys -Mt=" \
  "send-keys -t= ^e ^e ^e"


## Create new window on right click on the status bar on any other window
unbind-key -n MouseDown3Status
bind-key -n MouseDown3Status new-window -a -t=


## Drag windows on the status bar
bind-key -n MouseDrag1Status swap-window -t=


## Drag panes (interchange them)
bind-key -n MouseDrag1Pane swap-pane -dt=


## Close pane with mouse wheel (when released)
bind-key -n MouseUp2Pane kill-pane -t=


## Close window whith wheel (released)
bind-key -n MouseUp2Status kill-window -t=


## Enable mouse with 'm' and disable with 'M'
unbind m
bind m \
 set -g mouse on \;\
 display 'Mouse: ON'
unbind M
bind M \
 set -g mouse off \;\
 display 'Mouse: OFF'
 
 
## ZOOM: toggle with right click on pane
unbind-key -n MouseDown3Pane
bind-key -n MouseDown3Pane  resize-pane -Z -t=

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Now, I really recommend also adding to your TMUX configuration a cool theme.