Add script to swap Hyprland workspaces across monitors

This introduces xmonad like workspace swapping, i.e. if the workspaces
is already focused on another monitor, a swap will occur, moving the
workspace from the other monitor to the currently focused monitor and
replacing it with the workspace originally focused on this monitor (i.e.
swapping them).

If we're only using 1 monitor, or the workspace isn't focused on any
monitor, this will behave exactly like regular workspace focus command.

home/programs/graphical/wms/hyprland/config/keybinds.nix

@@ -102,7 +102,15 @@
       #
       # Switch workspace (swapping to current monitor)
       #
-      # TODO: requires script (swap-workspace)
+      "SUPER, 1, exec, hyprland-swap-workspace 1"
+      "SUPER, 2, exec, hyprland-swap-workspace 2"
+      "SUPER, 3, exec, hyprland-swap-workspace 3"
+      "SUPER, 4, exec, hyprland-swap-workspace 4"
+      "SUPER, 5, exec, hyprland-swap-workspace 5"
+      "SUPER, 6, exec, hyprland-swap-workspace 6"
+      "SUPER, 7, exec, hyprland-swap-workspace 7"
+      "SUPER, 8, exec, hyprland-swap-workspace 8"
+      "SUPER, 9, exec, hyprland-swap-workspace 9"
 
       #
       # Move window to workspace

home/programs/graphical/wms/hyprland/default.nix

@@ -6,7 +6,7 @@
 }: let
   inherit (lib) mkIf;
 
-  inherit (import ./packages {inherit pkgs;}) dbus-hyprland-env;
+  inherit (import ./packages {inherit pkgs;}) hyprland-swap-workspace;
 
   cfg = osConfig.myOptions.home-manager.wms.hyprland;
 in {
@@ -16,7 +16,7 @@ in {
 
   config = mkIf cfg.enable {
     home.packages = with pkgs; [
-      dbus-hyprland-env
+      hyprland-swap-workspace
     ];
 
     wayland.windowManager.hyprland = {

home/programs/graphical/wms/hyprland/packages/dbus-hyprland-env.nix

@@ -1,11 +0,0 @@
-{pkgs, ...}:
-pkgs.writeTextFile {
-  name = "dbus-hyprland-env";
-  destination = "/bin/dbus-hyprland-environment";
-  executable = true;
-  text = ''
-    dbus-update-activation-environment --systemd WAYLAND_DISPLAY XDG_CURRENT_DESKTOP=hyprland
-    systemctl --user stop pipewire pipewire-media-session xdg-desktop-portal xdg-desktop-portal-wlr
-    systemctl --user start pipewire wireplumber pipewire-media-session xdg-desktop-portal xdg-desktop-portal-hyprland
-  '';
-}

home/programs/graphical/wms/hyprland/packages/default.nix

@@ -3,7 +3,7 @@
   ...
 }: let
   packages = {
-    dbus-hyprland-env = pkgs.callPackage ./dbus-hyprland-env.nix {};
+    hyprland-swap-workspace = pkgs.callPackage ./hyprland-swap-workspace.nix {};
   };
 in
   packages

home/programs/graphical/wms/hyprland/packages/hyprland-swap-workspace.nix

@@ -0,0 +1,4 @@
+{pkgs, ...}:
+  pkgs.writeShellScriptBin "hyprland-swap-workspace" ''
+    ${builtins.readFile ./hyprland-swap-workspace.sh}
+  ''

home/programs/graphical/wms/hyprland/packages/hyprland-swap-workspace.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+WORKSPACE="$1"
+
+monitors_out="$(hyprctl monitors -j)"
+focused_mon="$(echo "$monitors_out" | jq '.[] | select(.focused==true) | .id')"
+focused_wks="$(echo "$monitors_out" | jq '.[].activeWorkspace.id')"
+
+# Workspace is already focused, check on which monitor
+if echo "$focused_wks" | grep "$WORKSPACE" >/dev/null; then
+	mon_id="$(echo "$monitors_out" | jq ".[] | select(.activeWorkspace.id==$WORKSPACE) | .id")"
+
+	# If the workspace is focused on the active monitor, don't do anything (we're here).
+	# Otherwise, swap the workspaces.
+	if [ "$mon_id" -ne "$focused_mon" ]; then
+		hyprctl dispatch swapactiveworkspaces "$focused_mon" "$mon_id"
+	fi
+# Switching to an unfocused workspace, always move it to focused monitor
+else
+	hyprctl dispatch moveworkspacetomonitor "$WORKSPACE" "$focused_mon"
+	hyprctl dispatch workspace "$WORKSPACE"
+fi