From 9814feb179887143b20bde80027737b29d5aa50c Mon Sep 17 00:00:00 2001
From: DannyDannyDanny <dth@taiga.ai>
Date: Sat, 13 Sep 2025 20:39:05 +0200
Subject: [PATCH] Fix tmux scrolling: enable smooth line-by-line scrolling

- Override default wheel bindings that caused 5-line jumps
- Add custom bindings for smooth 1-line scrolling
- Clean up trailing whitespaces in fish.nix
- Adjust Alacritty scroll multiplier from 3 to 1
---
 nixos/fish.nix            |  1 -
 nixos/home/danny/home.nix | 16 ++++++++++++++--
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/nixos/fish.nix b/nixos/fish.nix
index ec82229..99722a5 100644
--- a/nixos/fish.nix
+++ b/nixos/fish.nix
@@ -82,4 +82,3 @@
     '';
   };
 }
-
diff --git a/nixos/home/danny/home.nix b/nixos/home/danny/home.nix
index 60d6a39..97882fb 100644
--- a/nixos/home/danny/home.nix
+++ b/nixos/home/danny/home.nix
@@ -95,7 +95,6 @@
       set -g pane-base-index 1
 
       # sensible defaults
-      set -g mouse on
       setw -g mode-keys vi
       set -g history-limit 100000
       set -g escape-time 20
@@ -113,6 +112,19 @@
       # split with dash and vbar
       bind | split-window -h -c "#{pane_current_path}"
       bind - split-window -v -c "#{pane_current_path}"
+
+      # Enable mouse with smooth scrolling
+      set -g mouse on
+      # Override the default wheel bindings that cause 5-line jumps
+      unbind -T copy-mode WheelUpPane
+      unbind -T copy-mode WheelDownPane
+      unbind -T copy-mode-vi WheelUpPane
+      unbind -T copy-mode-vi WheelDownPane
+      # Bind smooth scrolling (1 line at a time)
+      bind -T copy-mode WheelUpPane send-keys -X scroll-up
+      bind -T copy-mode WheelDownPane send-keys -X scroll-down
+      bind -T copy-mode-vi WheelUpPane send-keys -X scroll-up
+      bind -T copy-mode-vi WheelDownPane send-keys -X scroll-down
     '';
     plugins = with pkgs.tmuxPlugins; [
       catppuccin
@@ -143,7 +155,7 @@
         startup_mode = "Fullscreen";
         option_as_alt = "Both";
       };
-      scrolling = { history = 10000; multiplier = 3; };
+      scrolling = { history = 10000; multiplier = 1; };
       font = {
         size = 13.0;
       };