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#!/usr/bin/env bash
#
# kvmx-clipboard manage clipboard sharing between host and guests
#
# Copyright (C) 2018 Silvio Rhatto - rhatto at riseup.net
#
# 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, either version 3 of the License,
# or any later version.
#
# 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/>.
#

# Parameters
SPOOL="$TMP/.kvmx-spice-copy"
BASENAME="`basename $0`"
WINDOWID="`xdotool getwindowfocus`"
DEST="`xprop -id $WINDOWID  | grep "^WM_NAME" | cut -d '=' -f 2 | cut -d '"' -f 2`"
CLASS="`xprop -id $WINDOWID | grep "^WM_CLASS"`"

# Logic
if [ "$BASENAME" == "kvmx-spice-copy" ]; then
  # Check if DEST is a spice-client or other window
  if ! echo $CLASS | grep -q 'spicy'; then
    DEST="host"
  fi

  mkdir -p "$TMP"
  echo "$DEST" > $SPOOL

  # UX
  if which awesome-client &> /dev/null; then
    echo "naughty.notify({title = \"KVMX Clipboard:\", text =\"Set orig to active window's system\", timeout = 2})" | awesome-client
  fi

  # Optional logging to ~/.xsession-errors
  #echo "[kvmx-copy] [`date '+%Y%m%d %H:%M:%S'`] set ORIG to $DEST"
else
  if [ -f "$SPOOL" ]; then
    ORIG="`cat $SPOOL`"
  else
    ORIG="host"
  fi

  # Check if DEST is a spice-client or other window
  if ! echo $CLASS | grep -q 'spicy'; then
    DEST="host"
  fi

  if [ "$ORIG" != "host" ] && ! kvmx running $ORIG &> /dev/null; then
    ORIG="host"
  fi

  if [ "$DEST" != "host" ] && ! kvmx running $DEST &> /dev/null; then
    DEST="host"
  fi

  if [ "$ORIG" == "$DEST" ]; then
    exit
  fi

  #if [ "$ORIG" == "host" ] && [ "$DEST" == "host" ]; then
  #  exit
  #fi

  # Optional logging to ~/.xsession-erros
  #echo "[kvmx-paste] [`date '+%Y%m%d %H:%M:%S'`] from $ORIG to $DEST"

  # UX
  #if which awesome-client &> /dev/null; then
  #  echo "naughty.notify({title = \"KVMX Clipboard:\", text =\"Pasting from $ORIG to $DEST\", timeout = 2})" | awesome-client
  #fi

  # Dispatch
  kvmx-clipboard $ORIG $DEST

  # UX
  if which awesome-client &> /dev/null; then
    echo "naughty.notify({title = \"KVMX Clipboard:\", text =\"Done pasting from $ORIG to $DEST\", timeout = 2})" | awesome-client
  fi
fi