From eaf9c23a97806a58037e880427f2c6503692aa49 Mon Sep 17 00:00:00 2001
From: Hans Goor <me@eyedevelop.org>
Date: Mon, 25 Mar 2024 21:11:57 +0100
Subject: [PATCH] Integrate tmux with some vim bindings.

---
 tmux/.tmux.conf          |  3 +++
 tmux/.tmux/bindings.conf | 10 +++++-----
 tmux/.tmux/nvim.conf     | 29 +++++++++++++++++++++++++++++
 3 files changed, 37 insertions(+), 5 deletions(-)
 create mode 100644 tmux/.tmux/nvim.conf

diff --git a/tmux/.tmux.conf b/tmux/.tmux.conf
index f364508..2e09a62 100644
--- a/tmux/.tmux.conf
+++ b/tmux/.tmux.conf
@@ -11,6 +11,9 @@ source $HOME/.tmux/plugin-configs/rose-pine.conf
 # General config
 source $HOME/.tmux/globals.conf
 
+# Nvim helper
+source $HOME/.tmux/nvim.conf
+
 # Keybindings
 source $HOME/.tmux/bindings.conf
 
diff --git a/tmux/.tmux/bindings.conf b/tmux/.tmux/bindings.conf
index 1b59405..f32cb9d 100644
--- a/tmux/.tmux/bindings.conf
+++ b/tmux/.tmux/bindings.conf
@@ -8,10 +8,10 @@ bind c new-window -c "#{pane_current_path}"
 unbind '"'
 unbind %
 bind | split-window -h -c "#{pane_current_path}"
-bind - split-window -v "#{pane_current_path}"
+bind - split-window -v -c "#{pane_current_path}"
 
 # Alt-arrow switching
-bind -n M-Left select-pane -L
-bind -n M-Right select-pane -R
-bind -n M-Up select-pane -U
-bind -n M-Down select-pane -D
+# bind -n M-Left select-pane -L
+# bind -n M-Right select-pane -R
+# bind -n M-Up select-pane -U
+# bind -n M-Down select-pane -D
diff --git a/tmux/.tmux/nvim.conf b/tmux/.tmux/nvim.conf
new file mode 100644
index 0000000..e759de7
--- /dev/null
+++ b/tmux/.tmux/nvim.conf
@@ -0,0 +1,29 @@
+# helper to decide whether we are inside (n)vim
+is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
+	| grep -iqE '^[^TXZ ]+ +(\\$+\\/)?g?(view|n?vim?x?)(diff)?$'"
+
+# Correct binding depending on version
+if-shell -b '[[ "$(tmux -V)" == tmux\ 2.* ]]' \
+    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\' 'select-pane -l'"
+if-shell -b '[[ "$(tmux -V)" == tmux\ 3.* ]]' \
+    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\\\' 'select-pane -l'"
+
+# Bindings
+bind-key -n 'C-Space' if-shell "$is_vim" 'send-keys C-Space' 'select-pane -t:.+'
+
+bind-key -n 'M-h' if-shell "$is_vim" 'send-keys M-h' 'select-pane -L'
+bind-key -n 'M-j' if-shell "$is_vim" 'send-keys M-j' 'select-pane -D'
+bind-key -n 'M-k' if-shell "$is_vim" 'send-keys M-k' 'select-pane -U'
+bind-key -n 'M-l' if-shell "$is_vim" 'send-keys M-l' 'select-pane -R'
+
+bind-key -n 'M-Left' if-shell "$is_vim" 'send-keys M-h' 'select-pane -L'
+bind-key -n 'M-Down' if-shell "$is_vim" 'send-keys M-j' 'select-pane -D'
+bind-key -n 'M-Up' if-shell "$is_vim" 'send-keys M-k' 'select-pane -U'
+bind-key -n 'M-Right' if-shell "$is_vim" 'send-keys M-l' 'select-pane -R'
+
+bind-key -T copy-mode-vi 'M-h' select-pane -L
+bind-key -T copy-mode-vi 'M-j' select-pane -D
+bind-key -T copy-mode-vi 'M-k' select-pane -U
+bind-key -T copy-mode-vi 'M-l' select-pane -R
+bind-key -T copy-mode-vi 'C-\' select-pane -l
+bind-key -T copy-mode-vi 'C-Space' select-pane -t:.+