hyprland: quick and dirty screen mirroring

homes/julian/features/hyprland/default.nix

@@ -47,6 +47,24 @@ in {
 
     wf-recorder
     wl-clipboard
+
+    (pkgs.writeShellScriptBin
+      "toggle-screen-mirroring"
+      (builtins.readFile
+        ./toggle-screen-mirroring.sh))
+
+    (
+      pkgs.writeShellScriptBin
+      "correct-workspace-locations"
+      (
+        lib.concatStringsSep "\n"
+        (
+          builtins.concatLists (
+            map (monitor: map (ws: "hyprctl dispatch moveworkspacetomonitor ${ws} ${monitor.name}") monitor.workspaces) config.monitors
+          )
+        )
+      )
+    )
   ];
 
   services.cliphist = {
@@ -194,6 +212,7 @@ in {
 
       exec = [
         "hyprctl setcursor ${config.gtk.cursorTheme.name} ${toString config.gtk.cursorTheme.size}"
+        "correct-workspace-locations"
       ];
 
       misc = {
@@ -269,7 +288,9 @@ in {
           "$mod SHIFT, E, exec, wlogout -p layer-shell"
           "$mod, Escape, exec, wlogout -p layer-shell"
           "$mod SHIFT, R, exec, hyprctl reload"
+          "$mod, Print, exec, hyprshot-gui"
           ", Print, exec, hyprshot-gui"
+          "$mod, P, exec, toggle-screen-mirroring; correct-workspace-locations"
 
           # "$mod SHIFT, E, exec, pkill Hyprland"
           # "$mod, G, togglegroup,"

homes/julian/features/hyprland/toggle-screen-mirroring.sh

@@ -0,0 +1,66 @@
+#! /usr/bin/env sh
+
+# A hyprland script for a laptop-external-monitor setup, toggling between which is in use
+
+# Launch at startup to make hyprland disable the internal monitor if an external monitor is detected and enabled
+# Additionally it's called with a keybind to switch between a laptop monitor and an external display
+# Ideally the conditional monitor behaviour was instead done directly in hyprland.conf, but I'm not sure whether that's possible
+#
+# Relevant info:
+# - hyprctl monitors: identifies currently enabled monitors
+# - hyprctl monitors all: identifies ALL connected monitors - including those not in use
+#
+# Suggested use:
+# Add this line somewhere after the regular monitor configuration in hyprland.conf:
+# exec = /path/to/hyprland-monitors-toggle.sh
+# Add a keybind to run this script on demand:
+# bind =,SomeKeyHere, exec, /path/to/hyprland-monitors-toggle.sh
+
+#move_all_workspaces_to_monitor() {
+#  TARGET_MONITOR="$1"
+
+#  hyprctl workspaces | grep ^workspace | cut --delimiter ' ' --fields 3 | xargs -I '{}' hyprctl dispatch moveworkspacetomonitor '{}' "$TARGET_MONITOR"
+
+#  # Previous approach
+#  #hyprctl swapactiveworkspaces $EXTERNAL_MONITOR $INTERNAL_MONITOR
+#}
+
+# TODO: Detect these instead of hardcoding them
+INTERNAL_MONITOR="eDP-1"
+EXTERNAL_MONITOR="HDMI-A-1"
+
+# NUM_MONITORS=$(hyprctl monitors all | grep --count Monitor)
+# NUM_MONITORS_ACTIVE=$(hyprctl monitors | grep --count Monitor)
+
+# Make sure all
+# if [ "$NUM_MONITORS_ACTIVE" -eq 1 ]; then
+#     move_all_workspaces_to_monitor $INTERNAL_MONITOR
+#     exit
+# fi
+
+MIRROR_SETTING=$(hyprctl monitors all -j | jq -r '.[] | select(.name == "HDMI-A-1") | .mirrorOf')
+
+# # For dynamically toggling which monitor is active later via a keybind
+# if [ "$NUM_MONITORS" -gt 1 ]; then # Handling multiple monitors
+#   if hyprctl monitors | cut --delimiter ' ' --fields 2 | grep --quiet ^$EXTERNAL_MONITOR; then
+#     hyprctl keyword monitor $INTERNAL_MONITOR,preferred,0x0,1
+#     move_all_workspaces_to_monitor $INTERNAL_MONITOR
+#     hyprctl keyword monitor "$EXTERNAL_MONITOR, disable"
+#   else
+#     hyprctl keyword monitor $EXTERNAL_MONITOR,preferred,0x0,1
+#     move_all_workspaces_to_monitor $EXTERNAL_MONITOR
+#     hyprctl keyword monitor "$INTERNAL_MONITOR, disable"
+#   fi
+# else  # If the external monitor is disconnected without running this script first, it might become the case that no monitor is on - therefore turn on the laptop monitor!
+#     hyprctl keyword monitor $INTERNAL_MONITOR,preferred,0x0,1
+#     move_all_workspaces_to_monitor $INTERNAL_MONITOR
+# fi
+
+echo setting:
+echo $MIRROR_SETTING
+if [ "$MIRROR_SETTING" = "none" ]; then
+    echo "mirroring..."
+    hyprctl keyword monitor "$EXTERNAL_MONITOR, preferred, auto, 1, mirror, $INTERNAL_MONITOR"
+else
+    hyprctl keyword monitor "$EXTERNAL_MONITOR, preferred, auto, 1"
+fi