dots

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color.sh (3035B)

      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 # wp symlink location
     14 WP="${XDG_DATA_HOME:-${HOME}/.local/share/}/wp"
     15 
     16 # gray wp dir
     17 GRAY_DIR="${XDG_CACHE_HOME:-${HOME}/.cache/}/dots/gray/"
     18 
     19 start() {
     20     # get mode stored in cache
     21     # 0 means mono
     22     # 1 means color
     23     mode=$(cat "${COLOR}")
     24 
     25     # start compositor
     26     [ "${mode}" -eq 1 ] && ${COMPOSITOR} -b --backend glx \
     27                         || ${COMPOSITOR} -b --backend glx --window-shader-fg="${SHADER}" 2>/dev/null
     28 }
     29 
     30 toggle() {
     31     # check shader status and thus check mode
     32     #shellcheck disable=SC2009
     33     shader_id=$(ps -ef | grep 'window-shader-fg' | grep -iv '\<grep\>' | awk '{ printf "%s ", $2 }')
     34 
     35     # shader enabled, meaning mono
     36     # ENABLE COLOR
     37     if [ "${shader_id}" ]; then
     38         #shellcheck disable=SC2086
     39         $(kill ${shader_id} && \
     40         sleep 1             && \
     41         ${COMPOSITOR} -b --backend glx) || return 1
     42         rm -rf "${GRAY_DIR}"
     43         mv "${WP}.bak" "${WP}"
     44         feh --no-fehbg --bg-scale "${WP}"
     45         mode=1
     46     # shader disabled, meaning color
     47     # DISABLE COLOR
     48     else
     49         #shellcheck disable=SC2086
     50         $(kill ${comp_id}                                                        && \
     51         sleep 1                                                                  && \
     52         ${COMPOSITOR} -b --backend glx --window-shader-fg="${SHADER}" 2>/dev/null) || return 1
     53         # follow symlink to get actual wp location
     54         wp="$(symlink.sh "${WP}")"
     55         # get extension of wp
     56         ext="${wp##*.}"
     57         # new filename for gray wallpaper
     58         gray="${GRAY_DIR}/$(basename "${wp%.*}-gray.${ext}")"
     59         mkdir "${GRAY_DIR}"
     60         magick "${wp}" -colorspace Gray "${gray}" >/dev/null 2>&1
     61         cp -a "${WP}" "${WP}.bak"
     62         ln -sf "${gray}" "${WP}"
     63         feh --no-fehbg --bg-scale "${WP}"
     64         mode=0
     65     fi
     66 
     67     # print mode to cache so we remember mode at launch
     68     printf '%s\n' "${mode}" > "${COLOR}"
     69 }
     70 
     71 main() {
     72     if [ ${#} -eq 0 ]; then
     73         # get compositor id
     74         #shellcheck disable=SC2009
     75         comp_id=$(ps -ef | grep "\<${COMPOSITOR}\>" | grep -iv '\<grep\>' | awk '{ printf "%s ", $2 }')
     76 
     77         # compositor not running, so return
     78         [ -z "${comp_id}" ] && printf '%s\n' "${COMPOSITOR} is not running" && return 1
     79 
     80         # toggle between mono/color modes
     81         if toggle; then
     82             # get mode
     83             [ "${mode}" -eq 1 ] && msg='Color enabled' || msg='Color disabled'
     84         else printf '%s\n' 'Toggle failed' && return 1
     85         fi
     86 
     87         # print notification
     88         env HERBE_ID=/0 herbe "${msg}" &
     89     fi
     90 
     91     # flags for profile
     92     while getopts 's' opt; do
     93         case "${opt}" in
     94             # automatically pick mode based on cache
     95             s) start        ;;
     96             *) return       ;;
     97         esac
     98     done
     99 }
    100 
    101 main "${@}"