From bb6baa5f5e0461ccf6f52b9ba73186fb23815669 Mon Sep 17 00:00:00 2001
From: Sho <sho@local>
Date: Sun, 2 Aug 2026 14:09:48 +0900
Subject: [PATCH] feat: automatically sync KDE KScreenLocker lockscreen
 wallpaper with current desktop wallpaper

---
 quickshell/services/WallpaperService.qml     | 2 ++
 quickshell/services/python/save_wallpaper.py | 7 +++++++
 quickshell/theme/Theme.qml                   | 1 +
 3 files changed, 10 insertions(+)

diff --git a/quickshell/services/WallpaperService.qml b/quickshell/services/WallpaperService.qml
index 348057f..88bbfd5 100644
--- a/quickshell/services/WallpaperService.qml
+++ b/quickshell/services/WallpaperService.qml
@@ -38,6 +38,7 @@ Item {
                             Theme.wallpaperPath = fileUrl
                             let rawPath = parsed.wallpaper.replace("file://", "")
                             Quickshell.execDetached(["plasma-apply-wallpaperimage", rawPath])
+                            Quickshell.execDetached(["kwriteconfig6", "--file", "kscreenlockerrc", "--group", "Greeter", "--group", "Wallpaper", "--group", "org.kde.image", "--group", "General", "--key", "Image", "file://" + rawPath])
                         }
                     }
                 } catch (e) {}
@@ -91,6 +92,7 @@ Item {
         }
 
         Quickshell.execDetached(["plasma-apply-wallpaperimage", rawPath])
+        Quickshell.execDetached(["kwriteconfig6", "--file", "kscreenlockerrc", "--group", "Greeter", "--group", "Wallpaper", "--group", "org.kde.image", "--group", "General", "--key", "Image", "file://" + rawPath])
 
         if (!skipSave) {
             Quickshell.execDetached(["python3", Quickshell.env("HOME") + "/.config/quickshell/services/python/save_wallpaper.py", rawPath, vName])
diff --git a/quickshell/services/python/save_wallpaper.py b/quickshell/services/python/save_wallpaper.py
index f5e7874..9a562c7 100755
--- a/quickshell/services/python/save_wallpaper.py
+++ b/quickshell/services/python/save_wallpaper.py
@@ -36,5 +36,12 @@ def save_wallpaper():
     except Exception:
         pass
 
+    try:
+        import subprocess
+        file_url = wp_path if wp_path.startswith("file://") else f"file://{wp_path}"
+        subprocess.run(["kwriteconfig6", "--file", "kscreenlockerrc", "--group", "Greeter", "--group", "Wallpaper", "--group", "org.kde.image", "--group", "General", "--key", "Image", file_url], capture_output=True)
+    except Exception:
+        pass
+
 if __name__ == '__main__':
     save_wallpaper()
diff --git a/quickshell/theme/Theme.qml b/quickshell/theme/Theme.qml
index e1921a4..ba17469 100644
--- a/quickshell/theme/Theme.qml
+++ b/quickshell/theme/Theme.qml
@@ -182,6 +182,7 @@ Item {
                         wallpaperPath = imgPath.startsWith("file://") ? imgPath : "file://" + imgPath
                         let rawPath = imgPath.replace("file://", "")
                         Quickshell.execDetached(["plasma-apply-wallpaperimage", rawPath])
+                        Quickshell.execDetached(["kwriteconfig6", "--file", "kscreenlockerrc", "--group", "Greeter", "--group", "Wallpaper", "--group", "org.kde.image", "--group", "General", "--key", "Image", "file://" + rawPath])
                     }
                     let rawPath = imgPath.replace("file://", "")
                     Quickshell.execDetached(["sh", "-c", "wallust run '" + rawPath + "' || ~/.cargo/bin/wallust run '" + rawPath + "' 2>/dev/null || true"])