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# Originally copied from Daniel Nolan's dotfile repo, with heavy modifications

# References

# * http://man.openbsd.org/OpenBSD-current/man1/tmux.1

# GENERAL SETTINGS

# ----------------

# use shell set as SHELL env variable as default shell

set-option -g default-shell $SHELL

# default terminal is 256 color

set -g default-terminal "screen-256color"

# start window index at 1

set -g base-index 1

set -g pane-base-index 1

set-window-option -g pane-base-index 1

# automatically renumber windows as they are created and destroyed

set-option -g renumber-windows on

# lower the delay between the prefix key and other keys (fixes pause when using vim)

set -sg escape-time 1

# use vi-like key bindings for the tmux command prompt

set -g status-keys vi

# use vi-like key bindings in copy mode

set-window-option -g mode-keys vi

# keep up to 8k lines of pane history

set -g history-limit 8000

# monitor window activity and generate notifications

set-window-option -g monitor-activity on

# show activity notifications on status line

set -g visual-activity on

# Constrain the window size to the size of the smallest client's window, if that

# client is looking at it

set-window-option -g aggressive-resize on

# KEY BINDINGS

# ------------

# unbind old prefix

unbind C-b

# remap prefix to Control + a

set -g prefix C-f

# prefix-r to force a reload of the config file

unbind r

bind r source-file ~/.tmux.conf \; display-message "~/.tmux.conf reloaded"

# quick pane cycling

unbind ^F

bind ^F select-pane -t :.+

#new 25% vertical split pane

bind ^T split-window -p 25

# setup 'v' to being selection as in Vim

bind -T copy-mode-vi v send-keys -X begin-selection

# once in selection mode use Ctrl-v to switch to block selection mode

bind -T copy-mode-vi 'C-v' send -X rectangle-toggle

# begin selection in copy mode.

bind -T copy-mode-vi 'y' send-keys -X copy-pipe-and-cancel "pbcopy"

# allow copying with the mouse

bind -T copy-mode-vi MouseDragEnd1Pane send-keys -X copy-pipe-and-cancel "pbcopy"

# update default binding of `Enter` to also use copy-pipe

bind -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel "pbcopy"

# select panes with <Prefix> h, j, k, l

bind h select-pane -L

bind j select-pane -D

bind k select-pane -U

bind l select-pane -R

# resize panes with <Prefix> H, J, K, L

bind -r J resize-pane -D 5

bind -r K resize-pane -U 5

bind -r H resize-pane -L 5

bind -r L resize-pane -R 5

# cycle windows with C-h and C-l

bind -r C-h select-window -t :-

bind -r C-l select-window -t :+

# Rebind pane splitting, set current directory to same directory as current pane

bind | split-window -h -c "#{pane_current_path}"

bind - split-window -v -c "#{pane_current_path}"

# By default show sessions with windows (and panes) collapsed when listing sessions

bind 'w' choose-tree -Zs

# Smart pane switching with awareness of vim splits

# See: https://github.com/christoomey/vim-tmux-navigator

is_vim='echo "#{pane_current_command}" | grep -iqE "(^|\/)g?(view|n?vim?)(diff)?$"'

bind -n C-h if-shell "$is_vim" "send-keys C-h" "select-pane -L"

bind -n C-j if-shell "$is_vim" "send-keys C-j" "select-pane -D"

bind -n C-k if-shell "$is_vim" "send-keys C-k" "select-pane -U"

bind -n C-l if-shell "$is_vim" "send-keys C-l" "select-pane -R"

bind -n C-\\ if-shell "$is_vim" "send-keys C-\\" "select-pane -l"

# Turn mouse on with leader m

bind m \

set -g mouse on \;\

display 'Mouse: ON'

# Turn mouse off with leader M

bind M \

set -g mouse off \;\

display 'Mouse: OFF'

# A binding to allow xtractor script to extract visible items from a tmux pane

# The tmux run-shell command will not work here because it runs the command in

# the background and not within a window. We need the interactive fzf prompt

# displayed.

bind b capture-pane \; split-window -h "tmux show-buffer | xtractor"

# Specific bindings for faster common operations

bind u capture-pane \; display-popup -E "tmux show-buffer | xtractor urls copy"

bind f capture-pane \; display-popup -E "tmux show-buffer | xtractor paths copy"

bind a capture-pane \; display-popup -E "tmux show-buffer | xtractor urls open"

bind e capture-pane \; split-window -h "tmux show-buffer | xtractor paths edit"

# APPEARANCE

# ----------

# Colors

# See https://en.wikipedia.org/wiki/ANSI_escape_code#Colors

set-option -g status-style fg=colour8,bg=colour0,default

# Status line format and colors

set -g status-left-length 40

set -g status-left "#[fg=colour8]Session: #S"

set -g status-right "#[fg=colour8][%m/%d/%Y %l:%M%p]"

set -g status-justify centre # center window list

# default window title fg, bg, and attribute

set-window-option -g window-status-style fg=colour8,bg=default,default

# current window title color

set-window-option -g window-status-current-style fg=colour2,bg=default

# pane border styles

set-option -g pane-border-style fg=colour10,bg=default

set-option -g pane-active-border-style fg=colour29,bg=colour254

# show pane title above pane

set -g pane-border-status top

# make background of non-active panes darker

set -g window-style fg=default,bg=colour15

set -g window-active-style fg=default,bg=colour231

# change color of status line when using prompt

set-option -g message-style fg=colour15,bg=colour1

# colors for pane numbers when using the display-panes command

set -g display-panes-active-colour colour33

set -g display-panes-colour colour166

# Reverse colors of selected text in pane when in copy or search mode, a bit

# intense but very easy to see

set -g mode-style fg=colour6,bg=default,reverse

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