.tmux.conf

# Inspired from: https://github.com/nicknisi/dotfiles/tree/master/tmux

# set is an alias for set-option
# setw is an alias for set-window-option

################## COLORS ##################
# Colors: https://i.stack.imgur.com/e63et.png
tm_color_active=colour208
tm_color_inactive=colour241
tm_color_neutral=colour255

################## GENERAL OPTIONS ##################
# More options: https://github.com/tmux/tmux/blob/master/options-table.c

# Automatically renumber tmux windows
set-option -g renumber-windows on

set-option -g mouse on
set-option -g status-left-length 32
set-option -g status-right-length 150

# Update status bar every minute
set-option -g status-interval 60

# Enable RGB colour if running in xterm(1)
set-option -sa terminal-overrides ",xterm*:Tc"

# Number of lines of history to remember
set-option -g history-limit 100000

# Required otherwise vim cannot display 256 colors
# Normally it's `tmux-256color` but for some reason on my new laptop I lose the feature `history-substring-search` brought by Prezto with xfce4-terminal
set-option -g default-terminal "screen-256color"

# default is black
set-option -g status-bg default
set-option -g status-fg $tm_color_neutral
set-option -g status-right-attr bold

# Pane border
set-option -g pane-border-fg $tm_color_inactive
set-option -g pane-active-border-fg $tm_color_active

# Pane number display
set-option -g display-panes-active-colour $tm_color_active
set-option -g display-panes-colour $tm_color_inactive

# Make pane index start with 1
set-option -g base-index 1

# vim mode for keys (i for insert, esc, etc)
set-window-option -g mode-keys vi

# The window (GUI) title of the terminal will be based on the curent tmux window
set-option -g set-titles on
set-option -g set-titles-string "#T - #W"

# No delay for ESC key
set-option -sg escape-time 0

# Window titles
set-window-option -g window-status-attr none
set-window-option -g window-status-current-attr bold,underscore
set-window-option -g window-status-current-fg $tm_color_active
# #I: number; #W name
set-window-option -g  window-status-format "#I #W"
set-window-option -g  window-status-current-format "#I #W"

# Rather than constraining window size to the maximum size of any client
# connected to the *session*, constrain window size to the maximum size of any
# client connected to *that window*. Much more reasonable.
set-window-option -g aggressive-resize on

# Make window index start with 1
set-window-option -g pane-base-index 1


################## BINDINGS ##################
# All the bindings: https://github.com/tmux/tmux/blob/master/key-bindings.c
bind [ copy-mode
bind Escape copy-mode
bind -Tcopy-mode-vi v send -X begin-selection
bind -Tcopy-mode-vi y send -X copy-pipe 'xclip -in -selection clipboard' \; display-message "copied to system clipboard"
bind -Tcopy-mode-vi C-v send -X rectangle-toggle
bind ] paste-buffer
# Open new panes/windows in the same directory
bind '"' split-window -c "#{pane_current_path}"
bind % split-window -h -c "#{pane_current_path}"
bind c new-window -c "#{pane_current_path}"

# pane movement shortcuts
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# ctrl-b, hold ctrl and k+
# -r gives 500ms to press the key again
bind -r C-k resize-pane -U
bind -r C-j resize-pane -D
bind -r C-h resize-pane -L
bind -r C-l resize-pane -R

# Bind : to command-prompt like vim.  This is the default in tmux already.
bind : command-prompt


################## LEFT STATUS BAR - TMUX SESSION ##################
# Diplay session name
set-option -g status-left " #[fg=colour200][#S] "

################## RIGHT STATUS BAR - EXTERNAL CONTENT ##################
tm_separator="#[fg=colour236]|"
tm_battery="#(~/git/dotfiles/scripts/getBatteryState.sh)"
tm_time='#[fg=colour190]%a %h-%d %H:%M:%S'

set-option -g status-right $tm_separator' '$tm_battery' '$tm_separator' '$tm_time' '

set-option -gw xterm-keys on
bind-key -n C-Right send-keys C-Right