dots

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color.sh (2343B)

      1 #!/bin/sh
      2 #
      3 # color
      4 
      5 COLOR="${XDG_CACHE_HOME:-${HOME}/.cache/}/dots/color"
      6 
      7 # should work with compton too
      8 COMPOSITOR='picom'
      9 
     10 # we can make windows mono via shader
     11 SHADER="${XDG_DATA_HOME:-${HOME}/.local/share/}/picom/gray.glsl"
     12 
     13 start() {
     14     # get mode stored in cache
     15     # 0 means mono
     16     # 1 means color
     17     mode=$(cat "${COLOR}")
     18 
     19     # start compositor
     20     [ "${mode}" -eq 1 ] && ${COMPOSITOR} -b --backend glx \
     21                         || ${COMPOSITOR} -b --backend glx --window-shader-fg="${SHADER}" 2>/dev/null
     22 }
     23 
     24 toggle() {
     25     # check shader status and thus check mode
     26     #shellcheck disable=SC2009
     27     shader_id=$(ps -ef | grep 'window-shader-fg' | grep -iv '\<grep\>' | awk '{ printf "%s ", $2 }')
     28 
     29     # shader enabled, meaning mono
     30     # ENABLE COLOR
     31     if [ "${shader_id}" ]; then
     32         #shellcheck disable=SC2086
     33         $(kill ${shader_id} && \
     34         sleep 1             && \
     35         ${COMPOSITOR} -b --backend glx) || return 1
     36         mode=1
     37     # shader disabled, meaning color
     38     # DISABLE COLOR
     39     else
     40         #shellcheck disable=SC2086
     41         $(kill ${comp_id}                                                        && \
     42         sleep 1                                                                  && \
     43         ${COMPOSITOR} -b --backend glx --window-shader-fg="${SHADER}" 2>/dev/null) || return 1
     44         mode=0
     45     fi
     46 
     47     # print mode to cache so we remember mode at launch
     48     printf '%s\n' "${mode}" > "${COLOR}"
     49 }
     50 
     51 main() {
     52     if [ ${#} -eq 0 ]; then
     53         # get compositor id
     54         #shellcheck disable=SC2009
     55         comp_id=$(ps -ef | grep "\<${COMPOSITOR}\>" | grep -iv '\<grep\>' | awk '{ printf "%s ", $2 }')
     56 
     57         # compositor not running, so return
     58         [ -z "${comp_id}" ] && printf '%s\n' "${COMPOSITOR} is not running" && return 1
     59 
     60         # toggle between mono/color modes
     61         if toggle; then
     62             # get mode
     63             [ "${mode}" -eq 1 ] && msg='Color enabled' || msg='Color disabled'
     64         else printf '%s\n' 'Toggle failed' && return 1
     65         fi
     66 
     67         # print notification
     68         env HERBE_ID=/0 herbe "${msg}" &
     69     fi
     70 
     71     # flags for profile
     72     while getopts 's' opt; do
     73         case "${opt}" in
     74             # automatically pick mode based on cache
     75             s) start        ;;
     76             *) return       ;;
     77         esac
     78     done
     79 }
     80 
     81 main "${@}"