kwin-mv-activity

#!/bin/bash

version="0.0.2";

usage="Usage: kwin-mv-activity [OPTION] [[ARGUMENT]]";

# displays the help text
# returns 0
showHelp () {
  echo -e "$usage\n"\
"Moves the currently active window to the passed activity\n"\
"OPTIONS\n"\
"  -a, --activity         ID  Move window to the activity with the passed ID\n"\
"  -h, --help                 Shows this help text\n"\
"  -A, --activity-name  NAME  Move window to the activity with the passed name\n"\
"  -n, --next                 Move window to the next activity relative to the\n"\
"                               current one - when the current activity is the\n"\
"                               last one, it wraps around to the first\n"\
"  -p, --prev                 Move window to the previous activity relative to\n"\
"                               the current one - when the current activity is\n"\
"                               the first, it wraps around to the last\n"\
"  -v, --version              Shows the scripts version\n"\
"EXIT CODES\n"\
"  0 success\n"\
"  1 invalid option\n"\
"  2 invalid argument\n"\
"  3 unexpected error\n"\
"  4 no active window found\n"\
"VERSION\n"\
"  $version";
  return 0;
}

# displays the usage text
# args
#   invalid-argument
# returns 2
showUsageForUnknownActivity () {
  echo -e "$usage\nUnknown activity '$activity'. to get a list of all activities, use\n"\
"kactivities-cli --list-activities";
  return 2;
}

# checks if the activity-id is not empty and a window which can be moved exists
# args
#   activity-id
# returns
#   3 on empty args or when xdotool returned an empty window id
#   4 when the found window is the desktop (no active window found)
#   xprop…?
moveWindow () {
  if [ -z "$1" ]; then
    echo "unexpected empty parameter for moveWindow";
    return 3;
  fi
  focusedWindow=$(xdotool getwindowfocus);
  if [ -z "$focusedWindow" ]; then
    echo "xdotool returned an unexpected empty id for current window";
    return 3;
  fi
  type=$(xprop -id "$focusedWindow" _NET_WM_WINDOW_TYPE);
  if [[ "$type" =~ _NET_WM_WINDOW_TYPE_DESKTOP$ ]]; then
    echo "no active window found";
    return 4;
  fi
  xprop -f _KDE_NET_WM_ACTIVITIES 8s \
      -id "$focusedWindow" \
      -set _KDE_NET_WM_ACTIVITIES "$1";
  return $?;
}

if [ -z "$1" ]; then
  showHelp;
  exit 1;
fi

case "$1" in
  --activity | -a)
    if [ -z "$2" ]; then
      showUsageForUnknownActivity;
      exit $?;
    fi
    kactivities-cli --list-activities | grep "$2";
    if [ $? -ne 0 ]; then
      showUsageForUnknownActivity;
      exit $?;
    fi
    moveWindow "$2";
    exit $?;
    ;;
  --activity-name | -A)
    if [ -z "$2" ]; then
      showUsageForUnknownActivity;
      exit $?;
    fi
    activity=$(kactivities-cli --list-activities | grep "$2" | cut -d" " -f2);
    if [ $? -ne 0 ] || [ -z "$activity" ]; then
      showUsageForUnknownActivity;
      exit $?;
    fi
    moveWindow "$activity";
    exit $?;
    ;;
  --help | -h)
    showHelp;
    exit $?;
    ;;
  --next | -n)
    activity=$(kactivities-cli --list-activities |
      grep -A 1 -C 0 -F '[CURRENT] ' |
      grep -F '[RUNNING] ' |
      cut -d" " -f2);
    if [ -z "$activity" ]; then
      activity=$(kactivities-cli --list-activities | head -n 1 | cut -d" " -f2);
    fi
    moveWindow "$activity";
    ;;
  --prev | -p)
    activity=$(kactivities-cli --list-activities |
      grep -B 1 -C 0 -F '[CURRENT] ' |
      grep -F '[RUNNING] ' |
      cut -d" " -f2);
    if [ -z "$activity" ]; then
      activity=$(kactivities-cli --list-activities | tail -n 1 | cut -d" " -f2);
    fi
    moveWindow "$activity";
    ;;
  --version | -v)
    echo "$version";
    exit 0;
    ;;
  *)
    exit 1;
    ;;
esac

echo "unexpected EOF";
exit 3;