Updated playerctl script to allow scrolling text

scripts/playerctl.sh

@@ -2,23 +2,59 @@
 # setting the locale, some users have issues with different locales, this forces the correct one
 export LC_ALL=en_US.UTF-8
 
-current_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+current_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 source $current_dir/utils.sh
 
-main()
-{
+function slice_loop() {
+  local str="$1"
+  local start="$2"
+  local how_many="$3"
+  local len=${#str}
+
+  local result=""
+
+  for ((i = 0; i < how_many; i++)); do
+    local index=$(((start + i) % len))
+    local char="${str:index:1}"
+    result="$result$char"
+  done
+
+  echo "$result"
+}
+
+main() {
   # storing the refresh rate in the variable RATE, default is 5
   RATE=$(get_tmux_option "@dracula-refresh-rate" 5)
 
-  if ! command -v playerctl &> /dev/null
-  then
+  if ! command -v playerctl &>/dev/null; then
     exit 1
   fi
 
   FORMAT=$(get_tmux_option "@dracula-playerctl-format" "Now playing: {{ artist }} - {{ album }} - {{ title }}")
   playerctl_playback=$(playerctl metadata --format "${FORMAT}")
-  echo ${playerctl_playback}
+  playerctl_playback="${playerctl_playback} "
+
+  # Adjust width of string
+  terminal_width=25
+
+  # Initial start point for scrolling
+  start=0
+  len=${#playerctl_playback}
+
+  scrolling_text=""
+
+  for ((start = 0; start <= len; start++)); do
+    scrolling_text=$(slice_loop "$playerctl_playback" "$start" "$terminal_width")
+    echo -ne "\r"
+    echo "$scrolling_text "
+    echo -ne "\r"
+
+    sleep 0.08
+  done
 
+  echo -ne "\r"
+  echo "$scrolling_text "
+  echo -ne "\r"
 }
 
 # run the main driver