Update -m to also set xoff and yoff appropriately

This is apparently necessary for at least i3 when remapping a dropdown
and also for bspwm when first creating one (otherwise the dropdown will
be created at the absolute position xoff yoff even if it is not on the
current monitor).

Addresses #3

tdrop

@@ -134,7 +134,7 @@ monitor_changed=false
 # Multiple Monitor Automatic Re-Sizing
 #
 
-maybe_set_new_size_for_monitor() {
+update_geometry_settings_for_monitor() {
 	# 1. Correctly interpret width/height percentages when there exist multiple
 	#    monitors so an initially created dropdown is the correct size (xdotool
 	#    would create a dropdown the width of all screens for 100% width)
@@ -162,6 +162,11 @@ maybe_set_new_size_for_monitor() {
 		fi
 	done <<< "$monitors_info"
 
+	# update x and y offsets, so that will appear on correct screen
+	# (required for some WMs apparently, but not for others)
+	((xoff+=x_begin))
+	((yoff+=y_begin))
+
 	# convert w/h percentages to pixels based on size of current screen
 	if [[ $height =~ %$ ]]; then
 		height=$(awk "BEGIN {printf(\"%.0f\", 0.01*${height%\%}*$y_height)}")
@@ -184,8 +189,8 @@ maybe_set_new_size_for_monitor() {
 	fi
 }
 
-resize_for_monitor() {
-	xdotool windowsize "$1" "$width" "$height"
+set_geometry_for_monitor() {
+	xdotool windowmove "$1" "$xoff" "$yoff" windowsize "$1" "$width" "$height"
 }
 
 #
@@ -463,9 +468,9 @@ wid_toggle() {
 			# would be much too messy to integrate a resize into existing map_post commands
 			# or add for those WMs that don't even need an xdotool command
 			# cleaner to do after any map_post command with the downside of potential
-			# for minimal flicker
+			# for minimal flicker or redundancy
 			if $monitor_changed; then
-				resize_for_monitor "$wid"
+				set_geometry_for_monitor "$wid"
 			fi
 		else
 			xdotool windowunmap "$wid"
@@ -607,7 +612,7 @@ auto_show() {
 #
 
 if $multiple_monitors; then
-	maybe_set_new_size_for_monitor
+	update_geometry_settings_for_monitor
 fi
 
 if $auto_detect_wm; then