From 9d15387d5ea77da8a3a9db552940cce260e43876 Mon Sep 17 00:00:00 2001
From: ItsDrike <itsdrike@protonmail.com>
Date: Mon, 10 Jun 2024 14:13:39 +0200
Subject: [PATCH] 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.
---
 .../wms/hyprland/config/keybinds.nix          | 10 ++++++++-
 .../graphical/wms/hyprland/default.nix        |  4 ++--
 .../hyprland/packages/dbus-hyprland-env.nix   | 11 ----------
 .../wms/hyprland/packages/default.nix         |  2 +-
 .../packages/hyprland-swap-workspace.nix      |  4 ++++
 .../packages/hyprland-swap-workspace.sh       | 22 +++++++++++++++++++
 6 files changed, 38 insertions(+), 15 deletions(-)
 delete mode 100644 home/programs/graphical/wms/hyprland/packages/dbus-hyprland-env.nix
 create mode 100644 home/programs/graphical/wms/hyprland/packages/hyprland-swap-workspace.nix
 create mode 100644 home/programs/graphical/wms/hyprland/packages/hyprland-swap-workspace.sh

diff --git a/home/programs/graphical/wms/hyprland/config/keybinds.nix b/home/programs/graphical/wms/hyprland/config/keybinds.nix
index 880a730..cd9fc84 100644
--- a/home/programs/graphical/wms/hyprland/config/keybinds.nix
+++ b/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
diff --git a/home/programs/graphical/wms/hyprland/default.nix b/home/programs/graphical/wms/hyprland/default.nix
index 43c1e4d..ba062f0 100644
--- a/home/programs/graphical/wms/hyprland/default.nix
+++ b/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 = {
diff --git a/home/programs/graphical/wms/hyprland/packages/dbus-hyprland-env.nix b/home/programs/graphical/wms/hyprland/packages/dbus-hyprland-env.nix
deleted file mode 100644
index 8fef3e5..0000000
--- a/home/programs/graphical/wms/hyprland/packages/dbus-hyprland-env.nix
+++ /dev/null
@@ -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
-  '';
-}
diff --git a/home/programs/graphical/wms/hyprland/packages/default.nix b/home/programs/graphical/wms/hyprland/packages/default.nix
index 36e2305..2679e8c 100644
--- a/home/programs/graphical/wms/hyprland/packages/default.nix
+++ b/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
diff --git a/home/programs/graphical/wms/hyprland/packages/hyprland-swap-workspace.nix b/home/programs/graphical/wms/hyprland/packages/hyprland-swap-workspace.nix
new file mode 100644
index 0000000..25433db
--- /dev/null
+++ b/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}
+  ''
diff --git a/home/programs/graphical/wms/hyprland/packages/hyprland-swap-workspace.sh b/home/programs/graphical/wms/hyprland/packages/hyprland-swap-workspace.sh
new file mode 100644
index 0000000..64030b4
--- /dev/null
+++ b/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