From 40106ac54138174586b71a01454dec05b10d38a2 Mon Sep 17 00:00:00 2001
From: Uyanide <pywang0608@foxmail.com>
Date: Wed, 8 Oct 2025 00:24:21 +0200
Subject: [PATCH] niri: automatically blur background

---
 .scripts/change-wallpaper |  2 +-
 .scripts/niri-autoblur    | 23 +++++++++++++++++++++++
 niri/config.kdl.template  |  3 ++-
 waybar-niri/config.jsonc  |  4 ++--
 4 files changed, 28 insertions(+), 4 deletions(-)
 create mode 100755 .scripts/niri-autoblur

diff --git a/.scripts/change-wallpaper b/.scripts/change-wallpaper
index 8066c66..18d840e 100755
--- a/.scripts/change-wallpaper
+++ b/.scripts/change-wallpaper
@@ -67,7 +67,7 @@ elif [ "$XDG_CURRENT_DESKTOP" = "niri" ]; then
         notify-send "Blurred Wallpaper set" "Selected wallpaper has been successfully applied for overview"
     ) &
 
-    nohup swww img "$image_copied" --transition-type fade --transition-duration 2 > /dev/null 2> /dev/null &
+    swww img "$image_copied" --transition-type fade --transition-duration 2 > /dev/null 2> /dev/null
 
     notify-send "Wallpaper Changed" "$image"
 else
diff --git a/.scripts/niri-autoblur b/.scripts/niri-autoblur
new file mode 100755
index 0000000..f9b6ad3
--- /dev/null
+++ b/.scripts/niri-autoblur
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+normal=$(find ~/.config/wallpaper-chooser/current -type f | head -n 1)
+blurred=$(find ~/.local/share/swaybg -type f | head -n 1)
+
+[ -n "$normal" ] || exit 1
+[ -n "$blurred" ] || exit 1
+
+while true; do
+    last=$target
+
+    mapfile -t focused_lines < <(niri msg focused-window 2>/dev/null)
+
+    if [ "${#focused_lines[@]}" -gt 1 ]; then
+        target="$blurred"
+    else
+        target="$normal"
+    fi
+
+    [ "$target" = "$last" ] || swww img "$target" --transition-type fade --transition-duration 0.5 > /dev/null 2> /dev/null
+
+    sleep 0.5
+done
diff --git a/niri/config.kdl.template b/niri/config.kdl.template
index 98b7068..807ce44 100644
--- a/niri/config.kdl.template
+++ b/niri/config.kdl.template
@@ -123,7 +123,8 @@ spawn-at-startup "waybar"
 
 // Wallpaper
 spawn-sh-at-startup "swaybg -i $(find $HOME/.local/share/swaybg -type f) -m fill"
-spawn-sh-at-startup "swww-daemon"
+spawn-at-startup "swww-daemon"
+spawn-at-startup "niri-autoblur"
 
 // Not necessary maybe ...
 spawn-at-startup "fcitx5"
diff --git a/waybar-niri/config.jsonc b/waybar-niri/config.jsonc
index 47914cb..a3a2376 100644
--- a/waybar-niri/config.jsonc
+++ b/waybar-niri/config.jsonc
@@ -75,7 +75,8 @@
     "today-format": "<b>{}</b>",
     "on-click": "niri msg action center-column",
     "on-scroll-up": "niri msg action set-column-width +10%",
-    "on-scroll-down": "niri msg action set-column-width -10%"
+    "on-scroll-down": "niri msg action set-column-width -10%",
+    "on-click-middle": "niri msg action close-window"
   },
 
   // System monitors
@@ -197,7 +198,6 @@
     "format": "",
     "separate-outputs": true,
     "icon": true,
-    "on-click-middle": "niri msg action close-window",
     "icon-size": 14
   },
   "custom/mediaplayer": {