Toggle Zeal window active

toggle_zeal.sh

#!/bin/sh

# Launch zeal, and bring it to top screen
# If it is already on top, bring it to the back (toggle)

DEBUG=0

if [ ! -e /usr/bin/zeal ]; then
  if [ $DEBUG ]; then
    echo "Zeal not found in /usr/bin/zeal"
  fi
  exit
fi

CURRENT_ACTIVE_WINDOW_ID=`xdotool getactivewindow`
ZEAL_WINDOW_ID=`xdotool search --name " - Zeal" | head -n 1`
if [ $DEBUG ]; then
  echo "Current active window is $CURRENT_ACTIVE_WINDOW_ID ('`xdotool getwindowname $CURRENT_ACTIVE_WINDOW_ID`')"
  echo "Zeal window is $ZEAL_WINDOW_ID ('`xdotool getwindowname $ZEAL_WINDOW_ID`')"
fi

if [ $CURRENT_ACTIVE_WINDOW_ID -eq $ZEAL_WINDOW_ID ]; then
  if [ $DEBUG ]; then
    echo "Zeal is already top window"
  fi
  # Zeal is already running and top-screen -> Bring it to behind
  if [ -e /tmp/.last_active_window ]; then
    LAST_ACTIVE_WINDOW_ID=`cat /tmp/.last_active_window`
    xdotool windowactivate $LAST_ACTIVE_WINDOW_ID
    if [ $DEBUG ]; then
      echo Bring "`xdotool getwindowname $LAST_ACTIVE_WINDOW_ID`" to the front
    fi
  else
    if [ $DEBUG ]; then
      echo "/tmp/.last_active_window cannot be found."
    fi
  fi
else
  if [ $DEBUG ]; then
    echo "Zeal is neither activated nor launched"
  fi

  # Memorize current active window
  echo $CURRENT_ACTIVE_WINDOW_ID > /tmp/.last_active_window

  # Launch zeal and bring it to the front
  /usr/bin/zeal
  xdotool search --name " - Zeal" windowactivate
fi

# c.f.
# https://ubuntuincident.wordpress.com/2013/01/10/find-window-by-its-name-and-activate-it-bring-to-foreground/