start_kde_activities.sh

#!/bin/bash
################################################################################
################################################################################
# Name:        start_kde_activities.sh
# Usage:
# Description:
# Created:     2018-04-27
# Copyright 2014, Victor Mendonca - http://wazem.org
#                                 - https://github.com/victorbrca
# License: Released under the terms of the GNU GPL license v3
################################################################################
################################################################################
# set -x

#-------------------------------------------------------------------------------
# Sets variables
#-------------------------------------------------------------------------------

log="${HOME}/bin/var/log/start_kde_activities-${HOSTNAME}.log"


#-------------------------------------------------------------------------------
# Functions
#-------------------------------------------------------------------------------

_logMe () {
  echo -e "$(date)\t-\t${1}" >> "$log"
}

_getActivities () {
  activities="$(qdbus org.kde.ActivityManager /ActivityManager/Activities ListActivities)"
}

_getActivitiesNames () {
  for activity in $(qdbus org.kde.ActivityManager /ActivityManager/Activities ListActivities) ; do
    echo "${activity} - $(qdbus org.kde.ActivityManager /ActivityManager/Activities ActivityName $activity)"
  done
}

_getRunningApps () {
  # Gets a X id for all running apps
  _logMe "Getting running apps"
  running_apps="$(xwininfo -root -tree | sed 's/ \+/ /g; s/ //; s/ .*//g; /x/!d; /xwinin/d')"
}

_getRunningAppsActivity () {
  for app_id in $running_apps ; do
    app_activity=$(xprop _KDE_NET_WM_ACTIVITIES -id "$app_id" 2> /dev/null | grep -v "not found" | awk '{print $NF}' | tr -d '"')
    if [ "$app_activity" ] ; then
      if [[ "$app_activity" != "00000000-0000-0000-0000-000000000000" ]] ; then
        app_name=$(xwininfo -root -tree | grep "$app_id" | awk -F'"' '{print $2}' )
        running_apps_activities="$running_apps_activities
  $app_name $app_activity"
      fi
    fi
  done
}

_notifyAudio () {
  notify-send "$1" "$2"
  paplay /usr/share/sounds/freedesktop/stereo/device-added.oga
}

_main () {
  # Matches running app to activities and stops empty activities
  for activity_id in $activities ; do
    activity_name="$(_getActivitiesNames | grep $activity_id | awk '{print $3}')"
    echo -e "$running_apps_activities" | grep -q "$activity_id"
    if [[ $? -eq 0 ]] ; then
      activity_state=$(qdbus org.kde.ActivityManager /ActivityManager/Activities ActivityState "$activity_id")
      if [[ $activity_state -eq 4 ]] ; then
        _logMe "There's an app running for the $activity_name activity. Starting it"
        qdbus org.kde.ActivityManager /ActivityManager/Activities StartActivity "$activity_id"
        _notifyAudio "KDE Activites" "Started $activity_name"
      fi
      continue
    else
      # echo "$(_getActivitiesNames | grep $activity_id | awk '{print $3}') is empty"
      activity_state=$(qdbus org.kde.ActivityManager /ActivityManager/Activities ActivityState "$activity_id")
      if [[ $activity_state -ne 4 ]] ; then
        sleep 7
        if [[ $activity_state -ne 4 ]] ; then
          _logMe "Stopping activity $activity_name"
          qdbus org.kde.ActivityManager /ActivityManager/Activities StopActivity "$activity_id"
          _notifyAudio "KDE Activites" "Stopped $activity_name"
        fi
      fi
    fi
  done
}

_cleanUp() {
  unset activities running_apps app_activity app_name running_apps_activities \
  activity_name activity_state activity_id
}

#-------------------------------------------------------------------------------
# Starts script
#-------------------------------------------------------------------------------

while true ; do
  _getActivities
  _getRunningApps
  _getRunningAppsActivity
  _main
  _cleanUp
  sleep 1
done