init

.config/i3blocks/sway-focusedwindow/sway-focusedwindow

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+
+maxlen=0
+if [[ $1 ]]; then
+  maxlen=$1
+fi
+
+align="center"
+if [[ $2 ]]; then
+  align=$2
+fi
+
+format() {
+  if [[ $maxlen == 0 ]]; then
+    echo "$1"
+    return 0
+  fi
+  len=${#1}
+  if [[ $len -ge $maxlen ]]; then
+    echo "${1:0:${maxlen}}"
+  else
+    pad=$(( maxlen - len ))
+    case "$align" in
+      "center" )
+        pad=$(( pad / 2 ))
+        printf "%*s%s%*s\n" $pad "" "$1" $pad ""
+        ;;
+      "left" )
+        printf "%s%*s\n" "$1" $pad "" 
+        ;;
+      "right" )
+        printf "%*s%s\n" $pad "" "$1"
+        ;;
+    esac
+  fi
+}
+
+process() {
+  while read -r LINE; do
+    format "$LINE"
+  done
+}
+
+swaymsg -t get_tree | jq --unbuffered -r '.. | select(.focused?) | .name' | process
+
+subscribe_query='select(.container.focused and (.change == "focus" or .change == "title")) | .container.name'
+swaymsg -m -t SUBSCRIBE "['window']" | jq --unbuffered -r "$subscribe_query" | process