tilit.tmux

#!/bin/bash
# shellcheck disable=SC2016
# shellcheck disable=SC2086

# Read user options.
for opt in easymode layout navigator prefix shiftnum; do
    export "$opt"="$(tmux show-option -gv @tilit-"$opt" 2>/dev/null)"
done

# Determine "arrow types".
if [ "${easymode:-}" = "on" ]; then
    h='left' j='down' k='up' l='right'
    H='S-left' J='S-down' K='S-up' L='S-right'
    left='h' down='j' up='k' right='l'
else
    h='h' j='j' k='k' l='l'
    H='H' J='J' K='K' L='L'
    left='left' down='down' up='up' right='right'
fi

# Autoselect default layout after creating new window.
if [ -n "${layout:-}" ]; then
    tmux set-hook -g window-linked "select-layout \"$layout\"; select-layout -E"
    tmux select-layout "$layout"
    tmux select-layout -E
fi

# If `@tilit-navigator` is on, integrate Ctrl + hjkl with `vim-tmux-navigator`/'Navigator.nvim' configs
if [ "${navigator:-}" = "on" ]; then
    is_vim="ps -o state= -o comm= -t '#{pane_tty}' | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?\.?(view|n?vim?x?)(-wrapped)?(diff)?$'"

    tmux bind-key -n C-h if-shell "$is_vim" "send-keys C-h" "select-pane -L"
    tmux bind-key -n C-j if-shell "$is_vim" "send-keys C-j" "select-pane -D"
    tmux bind-key -n C-k if-shell "$is_vim" "send-keys C-k" "select-pane -U"
    tmux bind-key -n C-l if-shell "$is_vim" "send-keys C-l" "select-pane -R"
    tmux bind-key -n C-\\ if-shell "$is_vim" "send-keys C-\\\\" "select-pane -l"

    tmux bind-key -T copy-mode-vi C-h select-pane -L
    tmux bind-key -T copy-mode-vi C-j select-pane -D
    tmux bind-key -T copy-mode-vi C-k select-pane -U
    tmux bind-key -T copy-mode-vi C-l select-pane -R
    tmux bind-key -T copy-mode-vi C-\\ select-pane -l
fi

# Determine modifier vs. prefix key.
if [ -z "${prefix:-}" ]; then
    bind='bind -n' mod='M-'
else
    bind='bind -rT tilit' mod=''
fi

# Define a prefix key.
if [ -n "$prefix" ]; then
    tmux bind -n "$prefix" switch-client -T tilit
fi

# Use US keyboard layout, unless configured
if [ -z "$shiftnum" ]; then
    shiftnum='!@#$%^&*()'
fi

config_path="$HOME/.config/tmux/tmux.conf"
plugin_path=${TMUX_PLUGIN_MANAGER_PATH:-$HOME/.config/tmux/plugins}

char_at() {
    echo $1 | cut -c $2
}

# Bind keys to switch between workspaces.
bind_switch() {
    tmux $bind "$1" if-shell "tmux select-window -t :$2" "" "new-window -t :$2"
}

# Bind keys to move panes between workspaces.
bind_move() {
    tmux $bind "$1" if-shell "tmux join-pane -t :$2" "" \
        "new-window -dt :$2; join-pane -t :$2; select-pane -t top-left; kill-pane" \\\; select-layout \\\; select-layout -E
}

# Bind keys to switch layouts
bind_layout() {
    tmux $bind "$1" select-layout "$2" \\\; select-layout -E
}

# Base index aware mapping
if [ "$(tmux show-option -gv base-index)" = "1" ]; then
    bind_switch "${mod}0" 10
    bind_move "${mod}$(char_at "$shiftnum" 10)" 10
else
    bind_switch "${mod}0" 0
    bind_move "${mod}$(char_at "$shiftnum" 10)" 0
fi

# Switch to workspace
bind_switch "${mod}1" 1
bind_switch "${mod}2" 2
bind_switch "${mod}3" 3
bind_switch "${mod}4" 4
bind_switch "${mod}5" 5
bind_switch "${mod}6" 6
bind_switch "${mod}7" 7
bind_switch "${mod}8" 8
bind_switch "${mod}9" 9

# Move pane to workspace
bind_move "${mod}$(char_at $shiftnum 1)" 1
bind_move "${mod}$(char_at $shiftnum 2)" 2
bind_move "${mod}$(char_at $shiftnum 3)" 3
bind_move "${mod}$(char_at $shiftnum 4)" 4
bind_move "${mod}$(char_at $shiftnum 5)" 5
bind_move "${mod}$(char_at $shiftnum 6)" 6
bind_move "${mod}$(char_at $shiftnum 7)" 7
bind_move "${mod}$(char_at $shiftnum 8)" 8
bind_move "${mod}$(char_at $shiftnum 9)" 9

# Switch layout
bind_layout "${mod}e" 'even-vertical'
bind_layout "${mod}E" 'even-horizontal'
bind_layout "${mod}m" 'main-vertical'
bind_layout "${mod}M" 'main-horizontal'
bind_layout "${mod}T" 'tiled'

tmux $bind "${mod}${left}" resize-pane -L 10
tmux $bind "${mod}${down}" resize-pane -D 5
tmux $bind "${mod}${up}" resize-pane -U 10
tmux $bind "${mod}${right}" resize-pane -R 5
tmux $bind "${mod}-" resize-pane -L 20
tmux $bind "${mod}_" resize-pane -D 10
tmux $bind "${mod}=" resize-pane -R 20
tmux $bind "${mod}+" resize-pane -U 10

tmux $bind "${mod}enter" split-pane -c "#{pane_current_path}"
tmux $bind "${mod}/" split-pane -v -c "#{pane_current_path}"
tmux $bind "${mod}\\" split-pane -h -c "#{pane_current_path}"

tmux $bind "${mod}," command-prompt -p 'Workspace name:' 'rename-window "%%"'
tmux $bind "${mod}[" previous-window
tmux $bind "${mod}]" next-window
tmux $bind "${mod}\`" last-window

tmux $bind "${mod}C" customize-mode
tmux $bind "${mod}D" detach-client
tmux $bind "${mod}${H}" swap-pane -s '{left-of}'
tmux $bind "${mod}${J}" swap-pane -s '{down-of}'
tmux $bind "${mod}${K}" swap-pane -s '{up-of}'
tmux $bind "${mod}${L}" swap-pane -s '{right-of}'
tmux $bind "${mod}I" display-popup -w "90%" -h "90%" -E "$EDITOR $plugin_path/tmux-tilit/docs/keybindings.md"
tmux $bind "${mod}R" rotate-window
tmux $bind "${mod}X" kill-window

tmux $bind "${mod}a" command-prompt
tmux $bind "${mod}b" set-option status
tmux $bind "${mod}c" display-popup -w "90%" -h "90%" -E "$EDITOR $config_path"
tmux $bind "${mod}d" select-pane -t '{bottom-right}' \\\; split-pane "bash -c dexe --wait-before-exit"
tmux $bind "${mod}f" run-shell "\"$plugin_path/extrakto/scripts/open.sh\" \"#{pane_id}\""
tmux $bind "${mod}g" display-popup -w "90%" -h "90%" -d "#{pane_current_path}" -E "lazygit"
tmux $bind "${mod}${h}" select-pane -L
tmux $bind "${mod}${j}" select-pane -D
tmux $bind "${mod}${k}" select-pane -U
tmux $bind "${mod}${l}" select-pane -R
tmux $bind "${mod}i" setw synchronize-panes\\\; display-message "Synchronize panes #{?pane_synchronized,on,off}"
tmux $bind "${mod}n" display-popup -w "90%" -h "90%" -d "$NOTES_DIR" -E "tdo -f"
tmux $bind "${mod}o" display-popup -w "90%" -h "90%" -d "#{pane_current_path}" -E "$SHELL"
tmux $bind "${mod}p" last-pane
tmux $bind "${mod}q" kill-session
tmux $bind "${mod}r" source-file $config_path\\\; display-message "Config Reloaded"
tmux $bind "${mod}s" choose-tree
tmux $bind "${mod}t" run-shell "tea"
tmux $bind "${mod}u" display-popup -w "80%" -h "80%" -d "$NOTES_DIR" -E "tdo"
tmux $bind "${mod}w" break-pane
tmux $bind "${mod}x" kill-pane
tmux $bind "${mod}y" copy-mode
tmux $bind "${mod}z" resize-pane -Z

# Alternate move between panes
tmux bind -n S-Left previous-window
tmux bind -n S-Right next-window

# Prefix keys
tmux bind r source-file "$config_path"\\\; display-message "Config Reloaded"
tmux bind -r H resize-pane -L 10
tmux bind -r L resize-pane -R 10
tmux bind -r K resize-pane -U 5
tmux bind -r J resize-pane -D 5

# Passthrough C-hjkl
tmux bind C-h send-keys 'C-h'
tmux bind C-j send-keys 'C-j'
tmux bind C-k send-keys 'C-k'
tmux bind C-l send-keys 'C-l'

# Copy mode bindings
tmux bind-key -T copy-mode-vi 'v' send -X begin-selection
tmux bind-key -T copy-mode-vi 'y' send -X copy-selection
tmux bind-key -T copy-mode-vi 'C-v' send-keys -X rectangle-toggle

# Autorefresh layout after deleting a pane.
tmux set-hook -g after-split-window "select-layout; select-layout -E"
tmux set-hook -g pane-exited "select-layout; select-layout -E"