update clipboard-image-recall screen size function

home/common/optional/desktop/dwm/default.nix

@@ -24,6 +24,7 @@
     ./scripts/emoji-picker.nix
     ./scripts/clipboard-save.nix
     ./scripts/clipboard-recall.nix
+    ./scripts/get-focused-monitor.nix
   ];
 
   home.packages = [
@@ -32,5 +33,6 @@
     pkgs.dunst
     pkgs.picom
     pkgs.sxhkd
+    pkgs.nsxiv
   ];
 }

home/common/optional/desktop/dwm/scripts/clipboard-recall.nix

@@ -52,18 +52,22 @@
 
     (writeShellScriptBin "clipboard-image-recall" ''
       # Script to view and select and output images in image clipboard dir to clipboard.
-      #!/bin/bash
-      width=$(${xorg.xwininfo}/bin/xwininfo -root | grep Width | sed "s/^.*:\s//")
-      height=$(${xorg.xwininfo}/bin/xwininfo -root | grep Height | sed "s/^.*:\s//")
-      
+      monitor_name=$(get-focused-monitor)
+      monitor_info=$(xrandr | grep "$monitor_name")
+
+      width=$(echo $monitor_info | grep -oP '\d+x\d+' | cut -dx -f1)
+      height=$(echo $monitor_info | grep -oP '\d+x\d+' | cut -dx -f2)
+
       scale_width=$(( $width/4 + $width/2 ))
       scale_height=$(( $height/4 + $height/2 ))
 
-      if [ "$1" == "" ]; then
-          echo "Please provide directory"
+      if [ "$1" == "" ] || [ -f "$1" ]; then
+          notify-send -t 1000 "Clipboard Recall" "Directory not specified or missing."
           exit 1
       fi
+
       filesdir="$(find $1 -type f -printf '%T@ %p\n' | sort -rn | cut -d ' ' -f 2-)"
+      [ "$filesdir" == "" ] && notify-send -t 1000 "Clipboard Recall" "No images in directory" && exit 1
       output="$(echo "$filesdir" | ${nsxiv}/bin/nsxiv -tioq -g "$scale_width"x"$scale_height" -N nsxiv-float )"
       num_lines=$( echo "$output" | wc -l)