tmux.conf

# Terminal with true color support
set -g default-terminal "tmux-256color"
set -ag terminal-overrides ",xterm*:Tc:smcup@:rmcup@"
set -ag terminal-overrides ",*256col*:Tc"

# Performance
set -sg escape-time 0
set -g history-limit 50000

# Vi key bindings
setw -g mode-keys vi
set -g status-keys vi

# Vi-style pane navigation
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# Vi-style copy mode
bind -T copy-mode-vi v send-keys -X begin-selection
bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel "pbcopy"

# Reload config
bind r source-file ~/.tmux.conf \; display "Config reloaded"

# Clear screen and scrollback (triggered by Ghostty Cmd+K)
bind K send-keys -R \; clear-history

# Hide time from status bar
set -g status-right ""

# Mouse support (scroll + drag-to-copy)
set -g mouse on

# Auto-enter copy-mode when scrolling up (critical for WSL compatibility)
# This handles: 1) apps with mouse support, 2) already in copy-mode, 3) normal pane
bind-key -n WheelUpPane if-shell -F -t = "#{mouse_any_flag}" "send-keys -M" "if -Ft= '#{pane_in_mode}' 'send-keys -M' 'copy-mode -e'"

# Scroll bindings in copy-mode (both vi and emacs modes)
bind-key -T copy-mode-vi WheelUpPane send-keys -X scroll-up
bind-key -T copy-mode-vi WheelDownPane send-keys -X scroll-down
bind-key -T copy-mode WheelUpPane send-keys -X scroll-up
bind-key -T copy-mode WheelDownPane send-keys -X scroll-down

# Clipboard integration (drag-to-copy)
bind-key -T copy-mode-vi MouseDragEnd1Pane send-keys -X stop-selection
bind-key -T copy-mode MouseDragEnd1Pane send-keys -X stop-selection
bind-key -T copy-mode-vi DoubleClick1Pane select-pane \; send-keys -X select-word
bind-key -T copy-mode DoubleClick1Pane select-pane \; send-keys -X select-word
bind-key -n DoubleClick1Pane select-pane -t = \; copy-mode \; send-keys -X select-word