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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
## - `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-$datetime.png)
## `grimshot save screen ~/screenshot.png` - to save screenshot under ~/screenshot.png
## `grimshot save output ~/screenshot.png` - to save screenshot under ~/screenshot.png
## `grimshot` - usage
## `grimshot check` - verify if tools are installed
ACTION=${1:-usage}
SUBJECT=${2:-screen}
FILE=${3:-$(xdg-user-dir PICTURES)/$(date +'Grimshot %Y-%m-%d %H-%M-%S.png')}
if [ "$ACTION" = "usage" ] ; then
echo "Usage:"
echo " grimshot copy|save win|screen|output|area [FILE]"
echo "Troubleshoot:"
echo " grimshot check"
exit
fi
notify() {
notify-send -t 3000 -a grimshot "$@"
}
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=$1
if command -v "$COMMAND" > /dev/null 2>&1; then
RESULT="OK"
else
RESULT="NOT FOUND"
fi
echo " $COMMAND: $RESULT"
}
takeScreenshot() {
FILE=$1
GEOM=$2
OUTPUT=$3
if [ ! -z "$OUTPUT" ]; then
grim -o "$OUTPUT" "$FILE" || die "Unable to invoke grim"
elif [ -z "$GEOM" ]; then
grim "$FILE" || die "Unable to invoke grim"
else
grim -g "$GEOM" "$FILE" || die "Unable to invoke grim"
fi
}
if [ "$ACTION" = "check" ] ; then
echo "Checking if required tools are installed. If something is missing, install it to your system and make it available in PATH..."
check grim
check slurp
check swaymsg
check wl-copy
check jq
check notify-send
check mktemp
exit
elif [ "$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"
elif [ "$SUBJECT" = "output" ] ; then
GEOM=""
OUTPUT=$(swaymsg -t get_outputs | jq -r '.[] | select(.focused)' | jq -r '.name')
WHAT="$OUTPUT"
else
die "Unknown subject to take a screen shot from" "$SUBJECT"
fi
if [ "$ACTION" = "copy" ] ; then
TMP=$(mktemp) || die "Unable to create temp file: is mktemp installed?"
takeScreenshot "$TMP" "$GEOM" "$OUTPUT"
wl-copy --type image/png < "$TMP" || die "Clipboard error"
rm "$TMP"
notifyOk "$WHAT copied to buffer"
else
if takeScreenshot "$FILE" "$GEOM" "$OUTPUT"; then
TITLE="Screenshot of $SUBJECT"
MESSAGE=$(basename "$FILE")
notifyOk "$MESSAGE" "$TITLE"
else
notifyError "Error taking screenshot with grim"
fi
fi
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