From c3d0af22cdc329d774a1a479685303f0d08d44a5 Mon Sep 17 00:00:00 2001
From: Konstantin Koslowski <konstantin.koslowski@posteo.de>
Date: Sun, 14 Aug 2022 12:55:55 +0200
Subject: [PATCH] bin/sway_lock: take screenshot for each output, use for
 lockscreen

also reduce processing time
---
 bin/sway_lock | 35 +++++++++++++++++++++++++++--------
 1 file changed, 27 insertions(+), 8 deletions(-)

diff --git a/bin/sway_lock b/bin/sway_lock
index 537a83f..24f1f9c 100755
--- a/bin/sway_lock
+++ b/bin/sway_lock
@@ -1,23 +1,30 @@
 #!/bin/bash
 source $HOME/.config/sway/bin/sway_helpers
-IMAGE=$HOME/.lockscreen.png
 LOCK_IMAGE=$HOME/.config/sway/bin/lock.png
-OUTPUT=$(swaymsg -t get_outputs -p | grep focused | cut -d " " -f 2)
 MEDIA_APP=playerctl
 SCROT_APP=grim
-SCROT_ARGS=" -o $OUTPUT -t png"
+SCROT_APP_ARGS=" -t jpeg"
+SCROT_FILE_BASE=$HOME/.lockscreen
+SCROT_FILE_EXT=jpg
 LOCK_APP=swaylock
-LOCK_ARGS=" -f -F -e -s fill -c 000000 --indicator-radius 100 --indicator-thickness 20 -i $IMAGE"
+LOCK_ARGS=" -f -F -e -s fill -c 000000 --indicator-radius 100 --indicator-thickness 20"
 INHIBIT_FILE=$HOME/.inhibit_lock
 
 function _clean() {
-  rm -vf $IMAGE
+  for output in $(_outputs); do
+    SCROT_FILE=${SCROT_FILE_BASE}_${output}.${SCROT_FILE_EXT}
+    rm -vf $SCROT_FILE
+  done
 }
 
 function _lock() {
   _check_inhibit $INHIBIT_FILE
   $MEDIA_APP pause
   _check_running $LOCK_APP
+  for output in $(_outputs); do
+    SCROT_FILE=${SCROT_FILE_BASE}_${output}.${SCROT_FILE_EXT}
+    LOCK_ARGS+=" -i ${output}:$SCROT_FILE"
+  done
   $LOCK_APP $LOCK_ARGS
 }
 
@@ -29,10 +36,22 @@ function _on() {
   swaymsg "output * dpms on"
 }
 
+function _outputs() {
+  swaymsg -t get_outputs | jq '.[] |select(.active == true) | .name' | while read line; do
+    echo ${line//\"/}
+  done
+}
+
 function _screenshot() {
-  $SCROT_APP $SCROT_ARGS $IMAGE
-  convert -blur 4x4 $IMAGE $IMAGE
-  convert -composite -gravity center $IMAGE $LOCK_IMAGE $IMAGE
+  for output in $(_outputs); do
+    SCROT_FILE=${SCROT_FILE_BASE}_${output}.${SCROT_FILE_EXT}
+    echo $SCROT_FILE
+    $SCROT_APP $SCROT_APP_ARGS -o $output $SCROT_FILE
+    # convert -blur 0x5 $SCROT_FILE $SCROT_FILE
+    # convert -motion-blur 15x15 $SCROT_FILE $SCROT_FILE
+    convert -scale 20% -blur 0x2.5 -resize 500% $SCROT_FILE $SCROT_FILE
+    convert -composite -gravity center $SCROT_FILE $LOCK_IMAGE $SCROT_FILE
+  done
 }
 
 ## main