A Wayland partial replacement of "wmctrl"

wyctrl

#!/bin/bash
#
#   A Wayland partial replacement of "wmctrl"
#
#   Requires https://extensions.gnome.org/extension/4724/window-calls/
#
#   Most of wmctrl's commands don't work under Wayland,
#   but switching to a desktop (wmctrl -s <DESK>) does.
#

gdbusCall='gdbus call --session --dest org.gnome.Shell'
gdbusCall=`echo "$gdbusCall --object-path /org/gnome/Shell/Extensions/Windows"`
gdbusCall=`echo "$gdbusCall --method org.gnome.Shell.Extensions.Windows"`

INDENT='  '

# ------------------------------------------------------------------------------
# Command line arguments
#
                                                                # default values
listWindows=false
windowReference=''
windowPosition=''
iconify=false
newDesktop=''
verbose=false
                                                             # specify arguments
arguments='lr:e:Ys:vh'
declare -A longArguments
longArguments=(
  ["l"]="list" ["r"]="reference" ["e"]="resize" ["Y"]="iconify"
  ["s"]="switch"
  ["v"]="verbose" ["h"]="help"
)
                                                             # show script usage
usage() {
  echo "Usage: $(basename "$0") [options] [action]" 1>&2 
  echo "Actions:" 1>&2 
  echo "${INDENT}-l --list            list windows" 1>&2 
  echo "${INDENT}-r --reference <REF> select window by reference" 1>&2 
  echo "${INDENT}-e --resize <COORDS> move and resize window" 1>&2 
  echo "${INDENT}-Y --iconify         iconify window" 1>&2 
  echo "${INDENT}-s --switch <DESK>   switch to the specified desktop" 1>&2 
  echo "${INDENT}-v --verbose         be verbose" 1>&2 
  echo "${INDENT}-h --help            print help" 1>&2 
  echo
  echo "Arguments:" 1>&2 
  echo "${INDENT}<COORDS>  position and size of the window" 1>&2 
  echo "${INDENT}          the format is <X>,<Y>,<W>,<H>" 1>&2 
  exit
}
                                                        # replace long arguments
if [ $# -gt 0 ] ; then
  for index in $(eval echo "{1..${#}}") ; do
    for argument in "${!longArguments[@]}" ; do
      if [ ${!index} = "--${longArguments[$argument]}" ] ; then
        set -- "${@:1:((index - 1))}" "-$argument" "${@:((index + 1)):${#}}"
      fi
    done
  done
fi
                                                               # parse arguments
while getopts ${arguments} option; do
  case ${option} in
    l) listWindows=true ;;
    r) windowReference="$OPTARG" ;;
    e) windowPosition="$OPTARG" ;;
    Y) iconify=true ;;
    s) newDesktop="$OPTARG" ;;
    v) verbose=true ;;
    h) usage ;;
    ?) usage
  esac
done

# ------------------------------------------------------------------------------
# Main script
#
                                                          # get window info list
windowList=`$gdbusCall.List`
windowList=`echo ${windowList:2:-3}`
#echo $windowList
IFS='}' read -r -a windowsInfo <<< "$windowList"
selectedWindowId=''

# ------------------------------------------------------------------------------
                                                          # get window reference
if [ -n "$windowReference" ] ; then
  if [[ $windowReference == "0x"* ]]; then
    windowReference=`printf '%d' $windowReference`
  fi
  for windowInfo in "${windowsInfo[@]}" ; do
    if [[ $windowInfo == *"$windowReference"* ]]; then
#      echo $windowInfo
      selectedWindowId=`echo "$windowInfo" | sed 's/.*"id"://'`
      selectedWindowId=`echo "$selectedWindowId" | sed 's/,.*//'`
      selectedWwindowIdHex=`printf '%08x' $selectedWindowId`
      if [ $verbose = 'true' ] ; then
        echo "Window id : $selectedWindowId (0x$selectedWwindowIdHex)"
      fi
    fi
  done
fi

# ------------------------------------------------------------------------------
                                                             # list windows info
if [ $listWindows = 'true' ] ; then
  if [ $verbose = 'true' ] ; then
    echo "Windows:"
  fi
  for windowInfo in "${windowsInfo[@]}" ; do
    windowInfo=`echo "$windowInfo" | sed 's/]//'`
#    echo "$windowInfo"
                                                                     # workspace
    workspaceId=`echo "$windowInfo" | sed 's/.*"workspace"://'`
    workspaceId=`echo "$workspaceId" | sed 's/,.*//'`
                                                                   # application
    application=`echo "$windowInfo" | sed 's/.*"wm_class"://'`
    application=`echo "$application" | sed 's/,.*//'`
                                                                  # window title
    title=`echo "$windowInfo" | sed 's/.*"title"://'`
    title=`echo "$title" | sed 's/,.*//'`
                                                                    # process id
    pid=`echo "$windowInfo" | sed 's/.*"pid"://'`
    pid=`echo "$pid" | sed 's/,.*//'`
                                                                     # window id
    windowId=`echo "$windowInfo" | sed 's/.*"id"://'`
    windowId=`echo "$windowId" | sed 's/,.*//'`
    windowIdHex=`printf '%08x' $windowId`
                                                                         # focus
    focus=`echo "$windowInfo" | sed 's/.*"focus"://'`
    focus=`echo "$focus" | sed 's/,.*//'`
                                                                  # display info
    displayInfo='true'
    if [ -z "$windowId" ] ; then
      displayInfo='false'
    fi
    if [ -n "$selectedWindowId" ] ; then
      if [ "$windowId" != "$selectedWindowId" ] ; then
        displayInfo='false'
      fi
    fi
    if [ $verbose = 'true' ] ; then
      if [ $displayInfo = 'true' ] ; then
        echo "${INDENT}workspace   $workspaceId"
        echo "${INDENT}application $application"
        echo "${INDENT}title       $title"
        echo "${INDENT}process id  $pid"
        echo "${INDENT}window id   $windowId (0x$windowIdHex)"
        echo "${INDENT}focus       $focus"
        echo
      fi
    else
      if [ $displayInfo = 'true' ] ; then
        windowInfo="0x$windowIdHex $workspaceId $application $title"
        echo $windowInfo
      fi
    fi
  done
fi

# ------------------------------------------------------------------------------
                                                        # move and resize window
if [ -n "$windowPosition" ] ; then
#  echo $windowPosition
  if [ -z "$selectedWindowId" ] ; then
    echo 'Specify window reference with "-r <REF>"'
    exit
  fi
  IFS=',' read -r -a windowCoordinates <<< "$windowPosition"
  if [ "${#windowCoordinates[@]}" -eq 2 ] ; then
    windowCoordinates+=(0)
    windowCoordinates+=(0)
  fi
  if [ "${#windowCoordinates[@]}" -ne 4 ] ; then
    echo 'The number of coordinates is to be equal to 4'
  else
    windowX=${windowCoordinates[0]}
    windowY=${windowCoordinates[1]}
    windowWidth=${windowCoordinates[2]}
    windowHeight=${windowCoordinates[3]}
    if [ $verbose = 'true' ] ; then
      echo "Moving window to [$windowX, $windowY], $windowWidth x $windowHeight"
    fi
    return=`$gdbusCall.Move $selectedWindowId $windowX $windowY`
    if [ "$windowWidth" -ne 0 ] ; then
      $gdbusCall.Resize $selectedWindowId $windowWidth $windowHeight > /dev/null
    fi
  fi
fi

# ------------------------------------------------------------------------------
                                                                # iconify window
if [ $iconify = true ] ; then
  if [ -z "$selectedWindowId" ] ; then
    echo 'Specify window reference with "-r <REF>"'
    exit
  fi
  if [ $verbose = 'true' ] ; then
    echo "Reducing window $selectedWwindowIdHex ($windowReference)"
  fi
  $gdbusCall.Minimize $selectedWindowId > /dev/null
fi

# ------------------------------------------------------------------------------
                                                             # switch to desktop
if [ -n "$newDesktop" ] ; then
  if [ $verbose = 'true' ] ; then
    echo "Switching to desktop $newDesktop"
  fi
  wmctrl -s $newDesktop
fi