dotfiles/.tmux.conf

set -g mouse on
set -g base-index 1
setw -g pane-base-index 1
set -g history-limit 50000
set -s escape-time 0
set -g focus-events on
set -g extended-keys on
set -g display-time 4000
set -g status-interval 5
setw -g aggressive-resize on
set -g status-keys emacs

# Status bar as a tab bar
set -g status-position bottom
set -g status-style 'bg=colour235 fg=colour7'
set -g status-left ' '
# prefix-highlight (native #{client_prefix} — no plugin needed) + copy/sync indicators.
# Indicators prepend to status-right so [+] [d] stay flush-right (mouse math intact).
set -g status-right '#{?client_prefix,#[bg=colour3#,fg=colour235#,bold] ^B #[default] ,}#{?#{==:#{pane_mode},copy-mode},#[bg=colour2#,fg=colour235#,bold] COPY #[default] ,}#{?pane_synchronized,#[bg=colour1#,fg=colour15#,bold] SYNC #[default] ,} [+] [d] '
# Tab label = the app's pane title (Claude Code sets a good one);
# falls back to the running command for bare shells (where pane_title == hostname).
# #{E:...} forces the stored format in @wtitle to expand. Replaces #W to dodge the
# window-name pollution (apps leak junk like "2.1.156" into the window NAME).
# @wtitle = full (feeds Ghostty title), @wtab = truncated (feeds status-bar tabs).
set -g @wtitle '#{?#{||:#{==:#{pane_title},},#{==:#{pane_title},#{host}}},#{pane_current_command},#{pane_title}}'
set -g @wtab '#{?#{||:#{==:#{pane_title},},#{==:#{pane_title},#{host}}},#{pane_current_command},#{=/24/…:pane_title}}'
# Forward the active pane's title to the outer terminal (Ghostty tab/window title)
set -g set-titles on
set -g set-titles-string '#{E:@wtitle}'
# Tab: index:(NpZ) title — pane count + zoom flag prefixed in parens, only when split.
setw -g window-status-format ' #I:#{?#{>:#{window_panes},1},(#{window_panes}p#{?window_zoomed_flag,Z,}) ,}#{E:@wtab} '
setw -g window-status-current-format ' #I:#{?#{>:#{window_panes},1},(#{window_panes}p#{?window_zoomed_flag,Z,}) ,}#{E:@wtab} '
setw -g window-status-current-style 'bg=colour4 fg=colour15 bold'
set -g pane-border-status top

# Click [+] to create new tab, [d] to detach
bind -n MouseDown1StatusRight run-shell -b '\
  x="#{mouse_x}"; \
  w=$(tmux display-message -p "#{window_width}"); \
  pos=$((w - x)); \
  if [ "$pos" -ge 0 ] && [ "$pos" -le 3 ]; then \
    tmux detach-client; \
  elif [ "$pos" -ge 4 ] && [ "$pos" -le 8 ]; then \
    tmux new-window; \
  fi'

# Close tab: just type exit (or Ctrl-d) in the shell

# Window management menu (prefix + w)
bind w display-menu -T "Windows" \
    "New Window"      n "new-window" \
    "Kill Window"     k "kill-window" \
    "Next Window"     l "next-window" \
    "Prev Window"     h "previous-window" \
    "" \
    "Horizontal Split" - "split-window -v" \
    "Vertical Split"   | "split-window -h" \
    "" \
    "Kill Pane"        x "kill-pane" \
    "Zoom Pane"        z "resize-pane -Z" \
    "" \
    "Choose Session"   s "choose-tree -s"

bind-key -n M-w new-window

# Navigation hierarchy (no prefix), shared with Zed where possible:
#   Shift+arrow       -> tabs/windows (flat, left/right only)
#   Ctrl+Shift+arrow  -> panes (the 2D grid). Same chord in Zed.
# Modified arrows arrive as legacy CSI 1;6 sequences, so tmux parses C-S-Left
# natively -- no user-keys translation needed. Never use Cmd here: Ghostty
# owns it and never forwards it to tmux.
# -r lets you hold/repeat within repeat-time.
bind-key -n -r S-Left  previous-window
bind-key -n -r S-Right next-window

bind-key -n -r C-S-Left  select-pane -L
bind-key -n -r C-S-Right select-pane -R
bind-key -n -r C-S-Up    select-pane -U
bind-key -n -r C-S-Down  select-pane -D

# Fork Claude Code session into a new window
bind R source-file ~/.tmux.conf \; display "Reloaded"

bind f run-shell 'T="Fork ($(date "+%a %H:%M"))"; tmux new-window -a -n "$T" "claude --dangerously-skip-permissions --resume --fork-session"; tmux select-pane -T "$T"'

# >>> tmux-claude-status >>>
source-file /Users/tom/.claude/tmux-claude-status.conf
# <<< tmux-claude-status <<<