Protect live state during restore and reset

config/dot/quickshell/services/SystemSettings.qml

@@ -33,6 +33,16 @@ Singleton {
     property string quickshellVersion: "0.3.0"
     property string lastError: ""
 
+    // Explicit seams keep reset sequencing testable without changing the live
+    // keymap, wallpaper, or display from an isolated contract harness.
+    property var displayBusy: function() { return Displays.busy || Displays.awaitingConfirmation; }
+    property var readDisplays: function() { return DesktopPreferences.get("displays"); }
+    property var protectDisplays: function(value) { return DesktopPreferences.set("displays", value); }
+    property var setDisplayBlocked: function(blocked) { Displays.externalChangeBlocked = blocked; }
+    property var reloadKeybinds: function() { Keybinds.applyReload(); }
+    property var keybindsReloading: function() { return Keybinds.reloading; }
+    property var applyWallpaper: function(path) { Wallpaper.set(path); }
+
     readonly property bool busy: monitorQuery.running || serviceQuery.running || versionQuery.running
         || configWrite.running || configVerify.running || bluebubblesQuery.running
 
@@ -389,8 +399,22 @@ Singleton {
     //
     // Compositor-backed values are re-applied afterwards, since resetting the
     // stored value does not by itself tell Hyprland anything.
-    function restoreDefaults(): void {
+    function restoreDefaults(): bool {
+        if (root.displayBusy()) {
+            root.lastError = "Finish the current display change before restoring defaults.";
+            return false;
+        }
+
+        const currentDisplays = root.readDisplays();
+        const protectedDisplays = JSON.parse(JSON.stringify(
+            currentDisplays && typeof currentDisplays === "object" ? currentDisplays : {}));
+        root.setDisplayBlocked(true);
         DesktopPreferences.resetDesktopDefaults();
+        if (!root.protectDisplays(protectedDisplays)) {
+            root.setDisplayBlocked(false);
+            root.lastError = "The current display setting could not be protected during reset.";
+            return false;
+        }
 
         // Home accessories keep their own store (panama-home.json), so a reset
         // that only cleared the schema store would silently leave a customised
@@ -401,12 +425,33 @@ Singleton {
         HomePreferences.resetHomeDefaults();
 
         resettleTimer.restart();
+        return true;
     }
 
     Timer {
         id: resettleTimer
         interval: 60
-        onTriggered: root.applyPersistedDisplayPolicy()
+        onTriggered: {
+            root.applyPersistedDisplayPolicy();
+            root.reloadKeybinds();
+            root.applyWallpaper(String(DesktopPreferences.get("wallpaperPath") ?? ""));
+            resetRelease.attempts = 0;
+            resetRelease.restart();
+        }
+    }
+
+    Timer {
+        id: resetRelease
+        property int attempts: 0
+        interval: 100
+        repeat: true
+        onTriggered: {
+            attempts++;
+            if ((!root.keybindsReloading() && !root.busy) || attempts >= 50) {
+                stop();
+                root.setDisplayBlocked(false);
+            }
+        }
     }
 
     function setAutoHdr(enabled: bool): void {