move bar to root window

modules/Shell.qml

@@ -4,8 +4,9 @@ import "launcher"
 import "pomodoro"
 import "powermenu"
 import "storybook"
-import Quickshell
 import QtQuick
+import Quickshell
+import Quickshell.Wayland
 
 Variants {
     model: Quickshell.screens
@@ -15,7 +16,65 @@ Variants {
 
         required property ShellScreen modelData
 
-        Bar {}
+        PanelWindow {
+            id: exclusionZone
+
+            anchors.top: true
+            anchors.left: true
+            anchors.right: true
+
+            implicitWidth: bar.width
+            implicitHeight: bar.height + bar.anchors.margins
+
+            color: "transparent"
+        }
+
+        PanelWindow {
+            id: topWindow
+
+            anchors.top: true
+            anchors.left: true
+            anchors.right: true
+            anchors.bottom: true
+
+            color: 'transparent'
+
+            WlrLayershell.exclusionMode: ExclusionMode.Ignore
+            WlrLayershell.layer: WlrLayer.Top
+
+            mask: Region {
+                width: topWindow.width
+                height: topWindow.height
+                intersection: Intersection.Xor
+                regions: regions.instances
+            }
+
+            Variants {
+                id: regions
+
+                model: panels.children
+
+                Region {
+                    required property Item modelData
+
+                    x: modelData.x
+                    y: modelData.y
+                    width: modelData.width
+                    height: modelData.height
+                    intersection: Intersection.Subtract
+                }
+            }
+
+            Item {
+                id: panels
+
+                anchors.fill: parent
+
+                Bar {
+                    id: bar
+                }
+            }
+        }
         Launcher {}
         Pomodoro {}
         PowerMenu {}