New 'fade' action as first step to 'idle'

Will take ~1-2s to fade all windows (depending on number of windows. Allows for fullscreen wallpaper for a couple of minutes before next steps.

sway/idle.sh

@@ -46,9 +46,13 @@ elif [ $1 == "start" ]; then
 elif [ $1 == "stop" ]; then
         pkill swayidle
 elif [ $1 == "fade" ]; then
-        $HOME/scripts/sway/fade.pl start
+        if [ ! -e $HOME/.spool/sway-hidden ]; then
+                kill -USR2 `cat $HOME/.spool/sway-transparency`
+        fi
 elif [ $1 == "unfade" ]; then
-        $HOME/scripts/sway/fade.pl stop
+        if [ -e $HOME/.spool/sway-hidden ]; then
+                kill -USR2 `cat $HOME/.spool/sway-transparency`
+        fi
 elif [ $1 == "dim" ]; then
         echo $($HOME/scripts/thinkpad/blc.pl %) > $BLFILE
         $HOME/scripts/thinkpad/blc.pl = 1 &>-

sway/window-transparency.py

@@ -10,6 +10,7 @@ import i3ipc
 import signal
 import sys
 import os
+import time
 from pathlib import Path
 from functools import partial
 
@@ -48,6 +49,21 @@ def show_hide(ipc, opacity):
             else:
                 w.command("opacity "+str(opacity))
 
+def fade(ipc, opacity):
+    global flag
+    if os.path.exists(flag):
+        show_hide(ipc, opacity)
+        return
+    for i in range(1,100):
+        for workspace in ipc.get_tree().workspaces():
+            for w in workspace:
+                if w.focused:
+                    w.command("opacity "+str(1-(i/100)))
+                elif float(opacity) >= (i/100):
+                    w.command("opacity "+str(float(opacity)-(i/100)))
+        time.sleep(0.005)
+    Path(flag).touch()
+
 def remove_opacity(ipc):
     global pid
     global flag
@@ -101,6 +117,7 @@ if __name__ == "__main__":
     for sig in [signal.SIGINT, signal.SIGTERM]:
         signal.signal(sig, lambda signal, frame: remove_opacity(ipc))
     signal.signal(signal.SIGUSR1, lambda signal, frame: show_hide(ipc, opacity))
+    signal.signal(signal.SIGUSR2, lambda signal, frame: fade(ipc, opacity))
     ipc.on("window::focus", partial(on_window_focus, args.opacity))
     ipc.main()