feat: add river

home/fabric/desktop/river.nix

@@ -0,0 +1,136 @@
+{...}: {
+  wayland.windowManager.river = {
+    enable = true;
+    extraConfig = ''
+      # This file is executed by river at startup
+
+      # Set rivertile as the default layout generator
+      riverctl default-layout rivertile
+      # Start the rivertile layout generator process
+      rivertile -view-padding 0 -outer-padding 0 &
+
+      # Set gaps similar to your Hyprland config
+      # Your config: gaps_out = "0, 440, 0, 440" (top, right, bottom, left)
+      # This command sets the padding around the edge of the layout area.
+      # rivertile has -outer-padding-top, -outer-padding-right, etc.
+      riverctl send-layout-cmd rivertile "outer-padding-right 440"
+      riverctl send-layout-cmd rivertile "outer-padding-left 440"
+      # Your config: gaps_in = 0
+      riverctl send-layout-cmd rivertile "view-padding 0"
+
+      # --- Autostart Applications (exec-once) ---
+      riverctl spawn "fcitx5"
+      riverctl spawn "wlsunset -l 43.6 -L -79.3"
+
+      # --- Input Settings ---
+      # repeat_delay = 300; repeat_rate = 50;
+      riverctl set-repeat 50 300
+
+      # --- Variables ---
+      # River does not have shell-like variables in its config,
+      # so we define them here for clarity if this were a script.
+      # In this Nix string, we will just use the values directly.
+      # mainMod="Mod4" (Super key)
+      # terminal="kitty"
+      # browser="firefox"
+      # fileManager="dolphin"
+      # menu="wofi --show drun"
+
+      # --- Key Mappings (bind) ---
+      # $mainMod, T, exec, $terminal
+      riverctl map normal Mod4 T spawn 'kitty'
+
+      # $mainMod, B, exec, $browser
+      riverctl map normal Mod4 B spawn 'firefox'
+
+      # $mainMod, S, exec, sh -c "grim -g '$(slurp -d)' - | wl-copy"
+      riverctl map normal Mod4 S spawn 'grim -g "$(slurp -d)" - | wl-copy'
+
+      # $mainMod, Q, killactive
+      riverctl map normal Mod4 Q close
+
+      # $mainMod, M, exit
+      riverctl map normal Mod4 M exit
+
+      # $mainMod, E, exec, $fileManager
+      riverctl map normal Mod4 E spawn 'dolphin'
+
+      # $mainMod, V, togglefloating
+      riverctl map normal Mod4 V toggle-float
+
+      # $mainMod, SPACE, exec, $menu
+      riverctl map normal Mod4 Space spawn 'wofi --show drun'
+
+      # --- Focus Movement ---
+      # $mainMod, H, movefocus, l
+      riverctl map normal Mod4 H focus-view left
+      # $mainMod, L, movefocus, r
+      riverctl map normal Mod4 L focus-view right
+      # $mainMod, K, movefocus, u
+      riverctl map normal Mod4 K focus-view up
+      # $mainMod, J, movefocus, d
+      riverctl map normal Mod4 J focus-view down
+
+      # --- Switch Tags (Workspaces) ---
+      # Tags are a bitmask: tag 1 = 1, tag 2 = 2, tag 3 = 4, tag n = 1 << (n-1)
+      riverctl map normal Mod4 1 set-focused-tags 1
+      riverctl map normal Mod4 2 set-focused-tags 2
+      riverctl map normal Mod4 3 set-focused-tags 4
+      riverctl map normal Mod4 4 set-focused-tags 8
+      riverctl map normal Mod4 5 set-focused-tags 16
+      riverctl map normal Mod4 6 set-focused-tags 32
+      riverctl map normal Mod4 7 set-focused-tags 64
+      riverctl map normal Mod4 8 set-focused-tags 128
+      riverctl map normal Mod4 9 set-focused-tags 256
+      riverctl map normal Mod4 0 set-focused-tags 512
+
+      # --- Move Window to Tag (movetoworkspace) ---
+      riverctl map normal Mod4+Shift 1 set-view-tags 1
+      riverctl map normal Mod4+Shift 2 set-view-tags 2
+      riverctl map normal Mod4+Shift 3 set-view-tags 4
+      riverctl map normal Mod4+Shift 4 set-view-tags 8
+      riverctl map normal Mod4+Shift 5 set-view-tags 16
+      riverctl map normal Mod4+Shift 6 set-view-tags 32
+      riverctl map normal Mod4+Shift 7 set-view-tags 64
+      riverctl map normal Mod4+Shift 8 set-view-tags 128
+      riverctl map normal Mod4+Shift 9 set-view-tags 256
+      riverctl map normal Mod4+Shift 0 set-view-tags 512
+
+      # --- Mouse Bindings (bindm) ---
+      # Super + Left Mouse to move
+      riverctl map-pointer normal Mod4 BTN_LEFT move-view
+      # Super + Right Mouse to resize
+      riverctl map-pointer normal Mod4 BTN_RIGHT resize-view
+
+      # --- Window Rules (windowrule) ---
+      # River uses app-id (for class) and title. Tags are set with a bitmask.
+      # workspace 1 silent,initialTitle:^EVE$ -> tags 1
+      riverctl rule-add -title 'EVE' tags 1
+      # tile, initialTitle:^EVE$ -> This is default, but we can be explicit with no-float
+      riverctl rule-add -title 'EVE' no-float
+
+      # workspace 6 silent,class:^QQ$ -> tags 32
+      riverctl rule-add -app-id 'QQ' tags 32
+
+      # float, title:^图片查看器$
+      riverctl rule-add -title '图片查看器' float
+
+      # workspace 6 silent,class:^(discord)$ -> tags 32
+      riverctl rule-add -app-id 'discord' tags 32
+
+      # workspace 4 silent,class:^(kitty)$ -> tags 8
+      riverctl rule-add -app-id 'kitty' tags 8
+
+      # workspace 5 silent,class:^(firefox)$ -> tags 16
+      riverctl rule-add -app-id 'firefox' tags 16
+
+      # Note on Monitor config:
+      # River itself doesn't manage output resolutions and refresh rates.
+      # This should be handled by another utility like kanshi, or by manually
+      # running wlr-randr commands in your startup script. Your NixOS setup
+      # might already handle this through services.wayland.wdisplays.enable or similar.
+      riverctl spawn "wlr-randr --output DP-3 --mode 3440x1440@144Hz"
+      riverctl spawn "wlr-randr --output DP-5 --mode 3440x1440@144Hz"
+    '';
+  };
+}