screenshot_i3.sh

#!/bin/bash
#
# Copyright (c) 2020 ellcs.
#
# This program is free software: you can redistribute it and/or modify  
# it under the terms of the GNU General Public License as published by  
# the Free Software Foundation, version 3.
#
# This program is distributed in the hope that it will be useful, but 
# WITHOUT ANY WARRANTY; without even the implied warranty of 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License 
# along with this program. If not, see <http://www.gnu.org/licenses/>.



# my i3 screenshot solution -- ellcs
#
# - x native, actually no i3 needed
# - screenshot focused window only
# - screenshot whole screen
# - give grepable names (time and name of window)
# 
# It creates screeshots of the format "YYYY-MM-DD_dd:mm:ss_focused_window.png".
# You can bin it to i3 editing your .i3/config:
#
#    bindsym $win+Shift+Return    exec "/path/to/screenshot_i3.sh ALL"
#    bindsym $win+Shift+s    	  exec "/path/to/screenshot_i3.sh FOCUS"
# 
# Make sure it's executable and edit the $screenshot_folder :)
screenshot_folder=/home/ellcs/Pictures/screenshots
mkdir -p "$screenshot_folder"

function currently_focused_window_id() {
  echo "$(xprop -root | awk '/_NET_ACTIVE_WINDOW\(WINDOW\)/{print $NF}')"
}

function currenty_focused_window_name() {
  id=$1
  echo $(xprop -id "${id}" | grep "WM_CLASS" | rev | cut -d" " -f1 | rev | cut -d'"' -f2)
}

function screenshot_whole_screen() {
  window_id=$(currently_focused_window_id)
  window_name=$(currenty_focused_window_name "$window_id")
  date=$(date +%F_%T)
  name=$(echo "${date}_${window_name}_whole.png")
  echo $name > asdf
  import -window root "${screenshot_folder}/${name}"
}

function screenshot_focused_window() {
  window_id=$(currently_focused_window_id)
  window_name=$(currenty_focused_window_name "$window_id")
  date=$(date +%F_%T)
  name=$(echo "${date}_${window_name}_single.png")
  import -window "$window_id" "${screenshot_folder}/${name}"
}

[ $1 == "ALL" ] && screenshot_whole_screen
[ $1 == "FOCUS" ] && screenshot_focused_window