From abe3ad126c5a1f5ca976cf5726cd5448c9c68768 Mon Sep 17 00:00:00 2001
From: dcarrillo <daniel.carrillo@gmail.com>
Date: Fri, 10 Apr 2020 14:48:33 +0200
Subject: [PATCH] [polybar] Hide 'tasks' label if there are no tasks

---
 .config/polybar/scripts/task_manager | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/.config/polybar/scripts/task_manager b/.config/polybar/scripts/task_manager
index 97b058f..bc289d4 100755
--- a/.config/polybar/scripts/task_manager
+++ b/.config/polybar/scripts/task_manager
@@ -1,14 +1,15 @@
 #!/usr/bin/env bash
 
 STATUS_FILE=/dev/shm/polybar_task_manager
-REFRESH=2
+REFRESH=1
 
 create_module_tasklabel()
 {
 cat <<TASKLABEL_TEMPLATE
 [module/taskslabel]
-type = custom/text
-content = "%{T4}Tasks:%{T-}"
+type = custom/ipc
+hook-0 = echo "%{T4}Tasks:%{T-}"
+hook-1 = echo ""
 click-left = rofi -modi window -show window -theme orange -show-icons -location 1 -yoffset +45 -xoffset +20
 
 TASKLABEL_TEMPLATE
@@ -78,6 +79,13 @@ show_tasks()
     mv $STATUS_FILE.current $STATUS_FILE
 
     num_windows=$(wc -l $STATUS_FILE | cut -f 1 -d " ")
+
+    if [ "$num_windows" -eq 0 ]; then
+        polybar-msg hook taskslabel 2 > /dev/null
+    else
+        polybar-msg hook taskslabel 1 > /dev/null
+    fi
+
     for counter in $(seq 1 "$max_tasks"); do
         if [ "$counter" -le "$num_windows" ]; then
             polybar-msg hook taskbar"$counter" 2 > /dev/null