fix(notification): fall back to dockSize when frontendWindowRect is not ready

When frontendWindowRect is (0,0,0,0) (not yet computed), use dockSize
as margin instead of returning 0. This ensures the notification window
has the correct margin from the first display, without relying on
timers. The Connections block will later refresh with the precise
value once frontendWindowRect becomes available.

Author: 18202781743

panels/notification/bubble/package/main.qml

@@ -31,9 +31,15 @@ Window {
         if (dockPosition !== position)
             return 0
 
-        // Use frontendWindowRect to calculate the actual visible dock area,
-        // so the margin accurately tracks dock position during hide/show animations
+        let dockSize = dockApplet.dockSize
+
+        // When frontendWindowRect is not yet computed (0,0,0,0), fall back to
+        // dockSize. The Connections block will refresh margins once the rect
+        // becomes available, giving the precise value.
         let frontendRect = dockApplet.frontendWindowRect
+        if (frontendRect.width === 0 && frontendRect.height === 0)
+            return dockSize
+
         let dpr = root.screen.devicePixelRatio
         let dockGeometry = Qt.rect(
             frontendRect.x / dpr,
@@ -49,11 +55,6 @@ Window {
             root.screen.height
         )
 
-        // Cap margin at dockSize to prevent incorrect values during position transitions
-        // (when frontendWindowRect may temporarily have wrong dimensions because
-        // position() changes immediately but window geometry hasn't updated yet)
-        let dockSize = dockApplet.dockSize
-
         switch (position) {
             case 0: { // DOCK_TOP
                 let visibleHeight = Math.max(0, dockGeometry.y + dockGeometry.height - screenGeometry.y)
@@ -90,29 +91,8 @@ Window {
     onDockAppletChanged: refreshDockMargins()
     Component.onCompleted: refreshDockMargins()
     onVisibleChanged: {
-        if (visible) {
+        if (visible)
             refreshDockMargins()
-            // The dock's frontendWindowRect is computed asynchronously via
-            // QMetaObject::invokeMethod, so it may not be ready when we first
-            // become visible. Poll until margins are non-zero or timeout.
-            if (dockMarginTop === 0 && dockMarginRight === 0 && dockMarginBottom === 0)
-                startupMarginTimer.start()
-        }
-    }
-
-    Timer {
-        id: startupMarginTimer
-        interval: 200
-        repeat: true
-        property int attempts: 0
-        onTriggered: {
-            root.refreshDockMargins()
-            attempts++
-            if ((root.dockMarginTop !== 0 || root.dockMarginRight !== 0 || root.dockMarginBottom !== 0) || attempts >= 15) {
-                stop()
-                attempts = 0
-            }
-        }
     }
 
     visible: Applet.visible