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#!/bin/sh
## Grimshot: a helper for screenshots within sway
## Requirements:
## - `grim`: screenshot utility for wayland
## - `slurp`: to select an area
## - `wf-recorder`: screen-recording utility
## - `swaymsg`: to read properties of current window
## - `wl-copy`: clipboard utility
## - `jq`: json uliity to parse swaymsg output
## - `notify-send`: to show notifications
## - `mktemp`: to create a temporary file
## Those are needed to be installed, if unsure, run `grimshot check`
##
## Examples:
## `grimshot copy win` - to copy current window
## `grimshot save area` - to select area and save it to default file (Pictures/Grimshot-$datetime.png)
## `grimshot save screen ~/screenshot.png` - to save screenshot under ~/screenshot.png
## `grimshot | grimshot -h` - usage
## `grimshot check` - verify if tools are installed
ACTION=${1:-usage}
SUBJECT=${2:-screen}
FILE=${3:-$(xdg-user-dir PICTURES)/screenshots/$(now).png}
case "$ACTION" in
usage|help|-h|--help)
echo "Usage:"
echo " grimshot copy|save|rec|rec-copy win|screen|area [FILE]"
echo "Troubleshoot:"
echo " grimshot check"
exit
esac
notify() {
# notify-send -i "${TMP:-${FILE}}" -t 3000 -a grimshot "$@"
notify-send -i "${TMP:-${FILE}}" -t 3000 "$@"
}
notifyOk() {
TITLE=${2:-"Screenshot"}
MESSAGE=${1:-"OK"}
notify "$TITLE" "$MESSAGE"
}
notifyError() {
TITLE=${2:-"Screenshot"}
MESSAGE=${1:-"Error taking screenshot with grim"}
notify -u critical "$TITLE" "$MESSAGE"
}
die() {
MSG=${1:-Bye}
notifyError "Error: $MSG"
exit 2
}
check() {
COMMAND=$1
command -v "$COMMAND" > /dev/null 2>&1
if [ $? ]; then
RESULT="OK"
else
RESULT="NOT FOUND"
fi
echo " $COMMAND: $RESULT"
}
takeScreenshot() {
FILE=$1
GEOM=$2
if [ -z "$GEOM" ]; then
grim "$FILE" || die "Unable to invoke grim"
else
grim -g "$GEOM" "$FILE" || die "Unable to invoke grim"
fi
}
recordScreen() {
FILE=$1
GEOM=$2
REC_OPTS="-c h264_vaapi -d /dev/dri/renderD128"
if [ -z "$GEOM" ]; then
wf-recorder ${REC_OPTS} -f "$FILE" || die "Unable to invoke wf-recorder"
else
wf-recorder ${REC_OPTS} -g "$GEOM" -f "$FILE" || die "Unable to invoke wf-recorder"
fi
}
if [ "$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 wf-recorder
check swaymsg
check wl-copy
check jq
check notify-send
check mktemp
exit
elif [ "$SUBJECT" = "area" ] ; then
GEOM=$(slurp -d)
WHAT="Area"
elif [ "$SUBJECT" = "win" ] ; then
FOCUSED=$(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"
else
die "Unknown subject to take a screen shot from" "$SUBJECT"
fi
if [ "$ACTION" = "copy" ] ; then
TMP=$(mktemp) || die "Unable to create temp file: is mktemp installed?"
takeScreenshot "$TMP" "$GEOM"
wl-copy --type image/png < "$TMP" || die "Clipboard error"
notifyOk "$WHAT copied to buffer"
rm "$TMP"
elif [ "$ACTION" = "save" ] ; then
takeScreenshot "$FILE" "$GEOM"
if [ $? ]; then
TITLE="Screenshot of $SUBJECT"
MESSAGE=$(basename "$FILE")
notifyOk "$MESSAGE" "$TITLE"
else
notifyError "Error taking screenshot with grim"
fi
elif [ "$ACTION" = "rec" ] ; then
echo "$FILE" | awk '/png$/{exit 0}' && \
FILE=$(xdg-user-dir VIDEOS)/grimshot/$(now).mp4
recordScreen "$FILE" "$GEOM"
if [ $? ]; then
TITLE="Screen recording of $SUBJECT"
MESSAGE=$(basename "$FILE")
notifyOk "$MESSAGE" "$TITLE"
else
notifyError "Error recording screen with wf-recorder"
fi
elif [ "$ACTION" = "rec-copy" ] ; then
TMP=$(mktemp --suffix '.mp4') || die "Unable to create temp file: is mktemp installed?"
recordScreen "$TMP" "$GEOM"
wl-copy --type video/mp4 < "$TMP" || die "Clipboard error"
notifyOk "$WHAT copied to buffer"
rm "$TMP"
else
die "Unknown action" "$ACTION"
fi
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