notifications: disableable popups, configurable max popup count

modules/Modules.qml

@@ -21,7 +21,9 @@ QtObject {
         })
     property var notifications: ({
             enable: true,
-            timeout: 3000
+            timeout: 3000,
+            popups: true,
+            maxPopups: 4
         })
     property var mpris: ({
             enable: true

modules/NotifPopup.qml

@@ -34,7 +34,7 @@ PanelWindow {
         property var _knownIds: ({})
 
         Repeater {
-            model: M.NotifService.popups.slice(0, 4)
+            model: M.NotifService.popups.slice(0, M.Modules.notifications.maxPopups || 4)
 
             delegate: Item {
                 id: popupItem

modules/NotifService.qml

@@ -83,6 +83,15 @@ QtObject {
 
             root.list = [data, ...root.list];
 
+            // Dismiss excess popups (keep in history, just hide popup)
+            const max = M.Modules.notifications.maxPopups || 4;
+            const currentPopups = root.list.filter(n => n.popup && !n.closed);
+            if (currentPopups.length > max) {
+                for (let i = max; i < currentPopups.length; i++)
+                    currentPopups[i].popup = false;
+                root._changed();
+            }
+
             // Auto-expire popup
             if (data.popup) {
                 const timeout = notif.expireTimeout > 0 ? notif.expireTimeout : (M.Modules.notifications.timeout || 3000);

nix/hm-module.nix

@@ -98,6 +98,16 @@ in
             default = 3000;
             description = "Notification popup timeout in milliseconds.";
           };
+          popups = lib.mkOption {
+            type = lib.types.bool;
+            default = true;
+            description = "Show notification popups.";
+          };
+          maxPopups = lib.mkOption {
+            type = lib.types.int;
+            default = 4;
+            description = "Maximum number of notification popups shown simultaneously.";
+          };
         };
         bluetooth = moduleOpt "bluetooth" (intervalOpt 5000);
         network = moduleOpt "network" (intervalOpt 5000);

shell.qml

@@ -19,9 +19,12 @@ ShellRoot {
                 screen: scope.modelData
             }
 
+            LazyLoader {
+                active: Modules.notifications.popups
                 NotifPopup {
                     screen: scope.modelData
                 }
+            }
 
             LazyLoader {
                 active: Modules.backgroundOverlay.enable