kitty:get_cwd: Use KITTY_LISTEN_ON for socket path

Also verify that the socket exists before using it.

.config/i3/config

@@ -102,12 +102,16 @@ bindsym $mod+6 exec ~/.config/i3/multi-monitor-workspaces.sh -s 6
 bindsym $mod+7 exec ~/.config/i3/multi-monitor-workspaces.sh -s 7
 bindsym $mod+8 exec ~/.config/i3/multi-monitor-workspaces.sh -s 8
 bindsym $mod+9 exec ~/.config/i3/multi-monitor-workspaces.sh -s 9
-bindsym $mod+0 exec ~/.config/i3/multi-monitor-workspaces.sh -s 0
+bindsym $mod+0 exec ~/.config/i3/multi-monitor-workspaces.sh -s 10
 
 # switch back to the previous workspace
 workspace_auto_back_and_forth yes
 bindsym $mod+Tab workspace back_and_forth
 
+# switch workspaces forward and backward
+bindsym $mod+Next workspace next
+bindsym $mod+Prior workspace prev
+
 # Switch visible workspaces (e.g. multi monitor setup)
 bindsym $mod+Shift+Tab exec i3-msg workspace "$( \
 	i3-msg -t get_workspaces | \
@@ -124,7 +128,7 @@ bindsym $mod+Shift+6 exec ~/.config/i3/multi-monitor-workspaces.sh -m 6
 bindsym $mod+Shift+7 exec ~/.config/i3/multi-monitor-workspaces.sh -m 7
 bindsym $mod+Shift+8 exec ~/.config/i3/multi-monitor-workspaces.sh -m 8
 bindsym $mod+Shift+9 exec ~/.config/i3/multi-monitor-workspaces.sh -m 9
-bindsym $mod+Shift+0 exec ~/.config/i3/multi-monitor-workspaces.sh -m 0
+bindsym $mod+Shift+0 exec ~/.config/i3/multi-monitor-workspaces.sh -m 10
 
 # move focused container and switch to workspace
 bindsym Mod1+Shift+1 exec ~/.config/i3/multi-monitor-workspaces.sh -ms 1
@@ -136,7 +140,7 @@ bindsym Mod1+Shift+6 exec ~/.config/i3/multi-monitor-workspaces.sh -ms 6
 bindsym Mod1+Shift+7 exec ~/.config/i3/multi-monitor-workspaces.sh -ms 7
 bindsym Mod1+Shift+8 exec ~/.config/i3/multi-monitor-workspaces.sh -ms 8
 bindsym Mod1+Shift+9 exec ~/.config/i3/multi-monitor-workspaces.sh -ms 9
-bindsym Mod1+Shift+0 exec ~/.config/i3/multi-monitor-workspaces.sh -ms 0
+bindsym Mod1+Shift+0 exec ~/.config/i3/multi-monitor-workspaces.sh -ms 10
 
 # reload the configuration file
 bindsym $mod+Shift+c reload

.config/i3/multi-monitor-workspaces.sh

@@ -25,25 +25,12 @@ done
 shift $((OPTIND - 1))
 [ $# -gt 0 ] || usage
 
-outputs="$(i3-msg -t get_outputs | jq -r '.[] | select(.active).name')"
-num_outs="$(printf "%s\n" "$outputs" | wc -l)"
+name="$(i3-msg -t get_tree \
+	| jq -r '.. | objects | select(.focused).output')"
 
-if [ "$num_outs" -lt 2 ]; then
-	# only one monitor
-	workspace="$1"
-else
-	name="$(i3-msg -t get_tree \
-		| jq -r '.. | objects | select(.focused).output')"
-	num="$(printf "%s\n" "$outputs" \
-		| grep -Fxn "$name" \
-		| cut -d: -f1)"
-	num="$((num - 1))"
-
-	# Omit the number on the first monitor
-	[ "$num" -gt 0 ] || num=
-
-	workspace="$num$1"
-fi
+# NOTE: See `strip-wsnames` in polybar config. With it every monitor has its own
+#       1-10 workspaces
+workspace="$1: $name"
 
 if [ -z "$switch" ] && [ -z "$move" ]; then
 	printf "%s\n" "$workspace"

.config/kitty/get_cwd.sh

@@ -7,21 +7,19 @@
 # Print the current working directory of the focused kitty window. Returns 4 if
 # none exist or is focused.
 
-socket_path="${TMPDIR:-/tmp}/kitty.$USER/kitty${1:+-$1}.sock"
+if [ -n "$KITTY_LISTEN_ON" ]; then
+	socket_path="${KITTY_LISTEN_ON#unix:}"
+else
+	socket_path="${TMPDIR:-/tmp}/kitty.$USER/kitty${1:+-$1}.sock"
+fi
+[ -e "$socket_path" ] || exit 1
 
-# NOTE: the backticks are used for hacky line-continuation, taken from
-#       https://stackoverflow.com/a/7729087/2092762c9
-kitten @ --to unix:"$socket_path" ls \
-	| jq -er ".[]`
-		` | select(.is_focused).tabs.[]`
-		` | select(.is_focused).windows.[]`
-		` | select(.is_focused).cwd"
-
-# An alternative version that uses recursive descent to find focused objects
-# that also have a `.cwd` key:
-#
-#	| jq -er "..`
-#		` | objects`
-#		` | select(.is_focused)`
-#		` | to_entries.[]`
-#		` | select(.key == \"cwd\").value"
+# NOTE: Unfortunately kitten-@-ls(1) is slow, so communicate with the socket
+#       directly.
+printf '\eP@kitty-cmd{%s,%s,%s}\e\\' \
+	'"cmd":"ls"' \
+	'"version":[0,26,0]' \
+	'"payload":{"match":"state:focused"}' \
+| nc -U -q0 "$socket_path" \
+| awk '{ print substr($0, 13, length($0) - 14) }' \
+| jq -er ".data | fromjson | .[].tabs.[].windows.[].cwd"

.config/polybar/config

@@ -40,6 +40,7 @@ enable-ipc = true
 type = internal/i3
 pin-workspaces = true
 format = <label-state> <label-mode>
+strip-wsnames = true
 index-sort = true
 wrapping-scroll = false
 

.config/polybar/launch.sh

@@ -22,10 +22,11 @@ done
 if ! pgrep -ax polybar >/dev/null 2>&1; then
 	# launch Polybar on every monitor
 	# https://github.com/polybar/polybar/issues/763
-	while read -r m; do
-		export MONITOR="${m%%:*}"
-		polybar --reload -c "$BASE_DIR/config" main &
-	done <<<"$(polybar --list-monitors)"
+	polybar --list-monitors \
+	| cut -d: -f1 \
+	| xargs -I'{}' -P0 \
+		env MONITOR='{}' \
+			polybar --reload -c "$BASE_DIR/config" main &
 
 	echo "Polybar launched..."
 else