#+TITLE: Tmux Configuration
:DRAWER:
#+PROPERTY: header-args :tangle ~/.tmux.conf
#+PROPERTY: header-args+ :comments both :mkdirp yes
:END:

* Line
#+begin_src conf
  # Activate the status bar
  set -g status "on"

  # default statusbar color
  set-option -g status-style bg=colour237,fg=colour223 # bg=bg1, fg=fg1

  # default window title colors
  set-window-option -g window-status-style bg=colour214,fg=colour237 # bg=yellow, fg=bg1

  # default window with an activity alert
  set-window-option -g window-status-activity-style bg=colour237,fg=colour248 # bg=bg1, fg=fg3

  # active window title colors
  set-window-option -g window-status-current-style bg=red,fg=colour237 # fg=bg1

  # pane border
  set-option -g pane-active-border-style fg=colour250 #fg2
  set-option -g pane-border-style fg=colour237 #bg1

  # message infos
  set-option -g message-style bg=colour239,fg=colour223 # bg=bg2, fg=fg1

  # writing commands inactive
  set-option -g message-command-style bg=colour239,fg=colour223 # bg=fg3, fg=bg1

  # pane number display
  set-option -g display-panes-active-colour colour250 #fg2
  set-option -g display-panes-colour colour237 #bg1

  # clock
  set-window-option -g clock-mode-colour colour109 #blue

  # bell
  set-window-option -g window-status-bell-style bg=colour167,fg=colour235 # bg=red, fg=bg

  ## Theme settings mixed with colors (unfortunately, but there is no cleaner way)
  set-option -g status-justify "left"
  set-option -g status-left-style none
  set-option -g status-left-length "80"
  set-option -g status-right-style none
  set-option -g status-right-length "80"
  set-window-option -g window-status-separator ""

  set-option -g status-left "#[fg=colour248, bg=colour241] #S #[fg=colour241, bg=colour237, nobold, noitalics, nounderscore]"
  set-option -g status-right "#[fg=colour239, bg=colour237, nobold, nounderscore, noitalics]#[fg=colour246,bg=colour239] %Y-%m-%d  %H:%M #[fg=colour248, bg=colour239, nobold, noitalics, nounderscore]#{?client_prefix,#[fg=colour124],}#[fg=colour237, bg=colour248]#{?client_prefix,#[bg=colour124],} #h "

  set-window-option -g window-status-current-format "#[fg=colour237, bg=colour214, nobold, noitalics, nounderscore]#[fg=colour239, bg=colour214] #I #[fg=colour239, bg=colour214, bold] #W #[fg=colour214, bg=colour237, nobold, noitalics, nounderscore]"
  set-window-option -g window-status-format "#[fg=colour237,bg=colour239,noitalics]#[fg=colour223,bg=colour239] #I #[fg=colour223, bg=colour239] #W #[fg=colour239, bg=colour237, noitalics]"
#+end_src

* Bindings
#+BEGIN_SRC conf
  # Set prefix to 'C-Space'
  unbind C-b
  set -g prefix C-Space

  # Reload the config using 'C-Space + r'
  bind r source-file ~/.tmux.conf \; display-message "Config reloaded..."

  # Simulate 'C-l' to clear the terminal
  bind C-l send-keys C-l \; clear-history

  # Open new panes with the path of the current pane.
  unbind c
  bind c new-window -c '#{pane_current_path}'

  # Vim-like key bindings for pane navigation (default uses cursor keys).
  unbind h
  bind h select-pane -L
  unbind j
  bind j select-pane -D
  unbind k
  bind k select-pane -U
  unbind l # normally used for last-window
  bind l select-pane -R

  # Move Panes
  unbind L
  bind L swap-pane -D
  unbind H
  bind H swap-pane -U

  # Resizing (mouse also works).
  unbind Left
  bind -r Left resize-pane -L 5
  unbind Right
  bind -r Right resize-pane -R 5
  unbind Down
  bind -r Down resize-pane -D 5
  unbind Up
  bind -r Up resize-pane -U 5

  # Fast toggle (normally prefix-l).
  bind ^space last-window

  # Intuitive window-splitting keys.
  bind / split-window -h -c '#{pane_current_path}' # normally prefix-%
  bind - split-window -v -c '#{pane_current_path}' # normally prefix-"

  # Swap windows
  bind-key -r "<" swap-window -t -1
  bind-key -r ">" swap-window -t +1

  # Smart pane switching with awareness of Vim splits
  # See: https://github.com/christoomey/vim-tmux-navigator
  is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
      | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?vim?x?)(diff)?$'"
  bind-key -n C-h if-shell "$is_vim" "send-keys C-h"  "select-pane -L"
  bind-key -n C-j if-shell "$is_vim" "send-keys C-j"  "select-pane -D"
  bind-key -n C-k if-shell "$is_vim" "send-keys C-k"  "select-pane -U"
  bind-key -n C-l if-shell "$is_vim" "send-keys C-l"  "select-pane -R"

  # Set 'C-Space + v' to enter copy-mode
  unbind [
  bind-key v copy-mode

  # Set 'C-Space + C-v' to paste
  unbind ]
  bind-key C-v paste-buffer

  # Setup 'v' to begin selection as in Vim and 'y' to yank
  bind-key -T copy-mode-vi 'v' send -X begin-selection
  bind-key -T copy-mode-vi 'y' send -X copy-pipe-and-cancel "xsel -i -p && xsel -o -p | xsel -i -b"
  bind-key -T copy-mode-vi 'Escape' send -X cancel
  bind-key -T copy-mode-vi 'C-v' send-keys -X rectangle-toggle
#+END_SRC

* Settings
#+BEGIN_SRC conf
  # Activity monitoring
  set -g visual-activity off

  # Automatically renumber window numbers on closing a pane (tmux >= 1.7).
  set -g renumber-windows on

  # Mouse can be used to select panes, select windows (by clicking on the status bar), resize panes
  set -g mouse on

  set -g default-terminal "screen-256color"
  set -ga terminal-overrides ',xterm-256color:Tc'

  set -g history-limit 262144

  # Start window and pane numbering at 1, (0 is too hard to reach)
  set -g base-index 1
  set -g pane-base-index 1

  # Don't wait for an escape sequence after seeing C-a
  set -s escape-time 0

  # Dynamically update iTerm tab and window titles
  set -g set-titles on

  # Needed as on tmux 1.9 and up (defaults to off)
  set -g focus-events on

  # But don't change tmux's own window titles
  set-option -g allow-rename off

  # Don't wrap searches; it's super confusing given tmux's reverse-ordering of position info in copy mode
  set -w -g wrap-search off

  # Restore pre-2.1 behavior of scrolling with the scrollwheel in Vim, less, copy mode etc, otherwise entering copy mode if not already in it.
  bind-key -T root WheelUpPane \
    if-shell -Ft= '#{?pane_in_mode,1,#{mouse_any_flag}}' \
      'send -Mt=' \
      'if-shell -Ft= "#{alternate_on}" "send -t= Up" "copy-mode -et="'
  bind-key -T root WheelDownPane \
    if-shell -Ft = '#{?pane_in_mode,1,#{mouse_any_flag}}' \
      'send -Mt=' \
      'if-shell -Ft= "#{alternate_on}"  "send -t= Down" "send -Mt="'

  # Stay in copy mode on drag end, but otherwise exit for mouse up.
  # Requires patch from https://github.com/tmux/tmux/issues/326
  # unbind-key -t vi-copy MouseDragEnd1Pane
  # bind-key -t vi-copy MouseUp1Pane cancel

  bind-key -n MouseDrag1Status swap-window -t=
  # bind-key -n MouseDown3Status new-window -a -t=

  bind-key -n MouseDrag1Status swap-window -t=
  # bind-key -n MouseDown3Status new-window -a -t=


  # #T      = standard window title (last command, see ~/.bash_profile)
  # #h      = short hostname
  # #S      = session name
  # #W      = tmux window name
  set -g set-titles-string "#T : #h > #S > #W"

  # Show bells in window titles
  set -g window-status-bell-style fg=yellow,bold,underscore

  # Causes tmux to resize a window based on the smallest client actually viewing it, not on the smallest one attached to the entire session
  set-window-option -g aggressive-resize
#+END_SRC

* Plugins
** Install plugins
#+BEGIN_SRC conf
  set -g @plugin 'tmux-plugins/tpm'
  # set -g @plugin 'tmux-plugins/tmux-sessionist'
  # set -g @plugin 'tmux-plugins/tmux-resurrect'
  # set -g @plugin 'tmux-plugins/tmux-continuum'
  # set -g @plugin 'tmux-plugins/tmux-battery'
  set -g @plugin 'nhdaly/tmux-better-mouse-mode'
  set -g @plugin 'seebi/tmux-colors-solarized'
#+END_SRC

** Configuration
#+BEGIN_SRC conf
  # =============================================================
  # tmux-resurrect
  # =============================================================
  # for vim
  set -g @resurrect-strategy-vim 'session'
  # for neovim
  set -g @resurrect-strategy-nvim 'session'

  # Restoring pane contents
  set -g @resurrect-capture-pane-contents 'on'

  run-shell ~/.tmux/plugins/tmux-resurrect/resurrect.tmux
  # =============================================================


  # =============================================================
  # tmux-continuum
  # =============================================================
  set -g @continuum-boot 'on'
  set -g @continuum-boot-options 'iterm,fullscreen'
  set -g @continuum-save-interval '15'

  run-shell ~/.tmux/plugins/tmux-continuum/continuum.tmux
  # =============================================================


  # =============================================================
  # tmux-battery
  # =============================================================
  set -g @batt_charged_icon "="
  set -g @batt_charging_icon "+"
  set -g @batt_discharging_icon "-"
  set -g @batt_attached_icon "o"
  # =============================================================
#+END_SRC

* Colors
#+BEGIN_SRC conf
  set -g @colors-solarized 'light'
#+END_SRC

* Initialize TMUX plugin manager
#+BEGIN_SRC conf
  run '~/.tmux/plugins/tpm/tpm'
#+END_SRC