notifications: centralize icon resolution in NotifItem.resolvedIcon, fix lock pill grouping and missing fallbacks

shell/applets/NotifApplet.qml

@@ -1,5 +1,4 @@
 import QtQuick
-import Quickshell
 import "../services" as S
 import "../modules" as M
 
@@ -76,12 +75,14 @@ Column {
             if (!map[key])
                 map[key] = {
                     appName: key,
-                    appIcon: n.appIcon,
+                    resolvedIcon: "",
                     notifs: [],
                     maxUrgency: 0,
                     maxTime: 0
                 };
             map[key].notifs.push(n);
+            if (!map[key].resolvedIcon && n.resolvedIcon)
+                map[key].resolvedIcon = n.resolvedIcon;
             if (n.urgency > map[key].maxUrgency)
                 map[key].maxUrgency = n.urgency;
             if (n.time > map[key].maxTime)
@@ -101,7 +102,7 @@ Column {
             arr.push({
                 type: "header",
                 appName: g.appName,
-                appIcon: g.appIcon,
+                resolvedIcon: g.resolvedIcon,
                 count: g.notifs.length,
                 collapsed: collapsed,
                 summaries: g.notifs.map(n => n.summary || "")
@@ -299,14 +300,7 @@ Column {
                     anchors.topMargin: (28 - height) / 2
                     width: S.Theme.fontSize + 2
                     height: S.Theme.fontSize + 2
-                    source: {
-                        if (notifDelegate._type !== "header")
-                            return "";
-                        const ic = notifDelegate.modelData.appIcon;
-                        if (!ic)
-                            return "";
-                        return (ic.startsWith("/") || ic.startsWith("file://")) ? ic : Quickshell.iconPath(ic, "dialog-information");
-                    }
+                    source: notifDelegate._type === "header" ? (notifDelegate.modelData.resolvedIcon || "") : ""
                     visible: status === Image.Ready
                     fillMode: Image.PreserveAspectFit
                     sourceSize: Qt.size(S.Theme.fontSize + 2, S.Theme.fontSize + 2)

shell/lock/LockNotifPills.qml

@@ -1,5 +1,4 @@
 import QtQuick
-import Quickshell
 import "../services" as S
 
 Row {
@@ -12,13 +11,15 @@ Row {
         const notifs = S.NotifService.list.filter(n => n.state !== "dismissed");
         const groups = {};
         for (const n of notifs) {
-            const key = n.appIcon || n.appName || "unknown";
+            const key = n.appName || "unknown";
             if (!groups[key])
                 groups[key] = {
-                    icon: n.appIcon,
+                    resolvedIcon: "",
                     name: n.appName,
                     count: 0
                 };
+            if (!groups[key].resolvedIcon && n.resolvedIcon)
+                groups[key].resolvedIcon = n.resolvedIcon;
             groups[key].count++;
         }
         return Object.values(groups);
@@ -62,14 +63,7 @@ Row {
                     anchors.verticalCenter: parent.verticalCenter
                     width: 14
                     height: 14
-                    source: {
-                        const icon = _pill.modelData.icon;
-                        if (!icon)
-                            return "";
-                        if (icon.startsWith("/"))
-                            return icon;
-                        return Quickshell.iconPath(icon) ?? "";
-                    }
+                    source: _pill.modelData.resolvedIcon || ""
                     sourceSize: Qt.size(14, 14)
                     visible: source !== ""
                 }

shell/modules/NotifCard.qml

@@ -1,5 +1,4 @@
 import QtQuick
-import Quickshell
 import Quickshell.Services.Notifications
 import "." as M
 import "../services" as S
@@ -87,15 +86,7 @@ Item {
         anchors.topMargin: 8
         width: root.iconSize
         height: root.iconSize
-        source: {
-            const img = root.notif?.image;
-            if (img)
-                return img;
-            const ic = root.notif?.appIcon;
-            if (!ic)
-                return "";
-            return (ic.startsWith("/") || ic.startsWith("file://")) ? ic : Quickshell.iconPath(ic, "dialog-information");
-        }
+        source: root.notif?.resolvedIcon ?? ""
         visible: status === Image.Ready
         fillMode: Image.PreserveAspectFit
         sourceSize: Qt.size(root.iconSize, root.iconSize)

shell/services/NotifItem.qml

@@ -1,4 +1,5 @@
 import QtQuick
+import Quickshell
 import Quickshell.Services.Notifications
 import "." as S
 
@@ -20,6 +21,17 @@ QtObject {
     property var actions: []
     property real time: Date.now()
 
+    // Resolved icon URL - checks image first, then resolves appIcon via XDG lookup
+    readonly property string resolvedIcon: {
+        if (image)
+            return image;
+        if (!appIcon)
+            return "";
+        if (appIcon.startsWith("/") || appIcon.startsWith("file://"))
+            return appIcon;
+        return Quickshell.iconPath(appIcon, "dialog-information");
+    }
+
     // Expire timer — owned by this item, not dynamically created
     readonly property Timer _expireTimer: Timer {
         running: false