sway/contrib/grimshot

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#!/bin/sh
## Grimshot: a helper for screenshots within sway
## Requirements:
## - `grim`: screenshot utility for wayland
## - `slurp`: to select an area
## - `swaymsg`: to read properties of current window
## - `wl-copy`: clipboard utility
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## - `jq`: json utility to parse swaymsg output
## - `notify-send`: to show notifications
## Those are needed to be installed, if unsure, run `grimshot check`
##
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## See `man 1 grimshot` or `grimshot usage` for further details.
getTargetDirectory() {
test -f "${XDG_CONFIG_HOME:-~/.config}/user-dirs.dirs" && \
. "${XDG_CONFIG_HOME:-~/.config}/user-dirs.dirs"
echo "${XDG_SCREENSHOTS_DIR:-${XDG_PICTURES_DIR:-$HOME}}"
}
NOTIFY=no
CURSOR=
while [ $# -gt 0 ]; do
key="$1"
case $key in
-n|--notify)
NOTIFY=yes
shift # past argument
;;
-c|--cursor)
CURSOR=yes
shift # past argument
;;
*) # unknown option
break # done with parsing --flags
;;
esac
done
ACTION=${1:-usage}
SUBJECT=${2:-screen}
FILE=${3:-$(getTargetDirectory)/$(date -Ins).png}
if [ "$ACTION" != "save" ] && [ "$ACTION" != "copy" ] && [ "$ACTION" != "check" ]; then
echo "Usage:"
echo " grimshot [--notify] [--cursor] (copy|save) [active|screen|output|area|window] [FILE|-]"
echo " grimshot check"
echo " grimshot usage"
echo ""
echo "Commands:"
echo " copy: Copy the screenshot data into the clipboard."
echo " save: Save the screenshot to a regular file or '-' to pipe to STDOUT."
echo " check: Verify if required tools are installed and exit."
echo " usage: Show this message and exit."
echo ""
echo "Targets:"
echo " active: Currently active window."
echo " screen: All visible outputs."
echo " output: Currently active output."
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echo " area: Manually select a region."
echo " window: Manually select a window."
exit
fi
notify() {
notify-send -t 3000 -a grimshot "$@"
}
notifyOk() {
[ "$NOTIFY" = "no" ] && return
TITLE=${2:-"Screenshot"}
MESSAGE=${1:-"OK"}
notify "$TITLE" "$MESSAGE"
}
notifyError() {
if [ $NOTIFY = "yes" ]; then
TITLE=${2:-"Screenshot"}
MESSAGE=${1:-"Error taking screenshot with grim"}
notify -u critical "$TITLE" "$MESSAGE"
else
echo "$1"
fi
}
die() {
MSG=${1:-Bye}
notifyError "Error: $MSG"
exit 2
}
check() {
COMMAND=$1
if command -v "$COMMAND" > /dev/null 2>&1; then
RESULT="OK"
else
RESULT="NOT FOUND"
fi
echo " $COMMAND: $RESULT"
}
takeScreenshot() {
FILE=$1
GEOM=$2
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OUTPUT=$3
if [ -n "$OUTPUT" ]; then
grim ${CURSOR:+-c} -o "$OUTPUT" "$FILE" || die "Unable to invoke grim"
elif [ -z "$GEOM" ]; then
grim ${CURSOR:+-c} "$FILE" || die "Unable to invoke grim"
else
grim ${CURSOR:+-c} -g "$GEOM" "$FILE" || die "Unable to invoke grim"
fi
}
if [ "$ACTION" = "check" ] ; then
echo "Checking if required tools are installed. If something is missing, install it to your system and make it available in PATH..."
check grim
check slurp
check swaymsg
check wl-copy
check jq
check notify-send
exit
elif [ "$SUBJECT" = "area" ] ; then
GEOM=$(slurp -d)
# Check if user exited slurp without selecting the area
if [ -z "$GEOM" ]; then
exit 1
fi
WHAT="Area"
elif [ "$SUBJECT" = "active" ] ; then
FOCUSED=$(swaymsg -t get_tree | jq -r 'recurse(.nodes[]?, .floating_nodes[]?) | select(.focused)')
GEOM=$(echo "$FOCUSED" | jq -r '.rect | "\(.x),\(.y) \(.width)x\(.height)"')
APP_ID=$(echo "$FOCUSED" | jq -r '.app_id')
WHAT="$APP_ID window"
elif [ "$SUBJECT" = "screen" ] ; then
GEOM=""
WHAT="Screen"
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elif [ "$SUBJECT" = "output" ] ; then
GEOM=""
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OUTPUT=$(swaymsg -t get_outputs | jq -r '.[] | select(.focused)' | jq -r '.name')
WHAT="$OUTPUT"
elif [ "$SUBJECT" = "window" ] ; then
GEOM=$(swaymsg -t get_tree | jq -r '.. | select(.pid? and .visible?) | .rect | "\(.x),\(.y) \(.width)x\(.height)"' | slurp)
# Check if user exited slurp without selecting the area
if [ -z "$GEOM" ]; then
exit 1
fi
WHAT="Window"
else
die "Unknown subject to take a screen shot from" "$SUBJECT"
fi
if [ "$ACTION" = "copy" ] ; then
takeScreenshot - "$GEOM" "$OUTPUT" | wl-copy --type image/png || die "Clipboard error"
notifyOk "$WHAT copied to buffer"
else
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if takeScreenshot "$FILE" "$GEOM" "$OUTPUT"; then
TITLE="Screenshot of $SUBJECT"
MESSAGE=$(basename "$FILE")
notifyOk "$MESSAGE" "$TITLE"
echo "$FILE"
else
notifyError "Error taking screenshot with grim"
fi
fi