feat(desktop): fill the drawer's notification space

The reserved Item becomes the live queue with a History button, scrollable
because the queue can hold 20. The drawer writes notifyd/drawer so the
balloon shell stands down while this space is showing, which is what stops a
notification appearing twice.

1 files changed, 20 insertions, 6 deletions

diff --git a/desktop/Drawer.qml b/desktop/Drawer.qml
index 4ed37d3..79a5393 100644
--- a/desktop/Drawer.qml
+++ b/desktop/Drawer.qml
@@ -10,6 +10,7 @@
 // GNU General Public License for more details.
 
 import Quickshell
+import Quickshell.Io
 import Quickshell.Wayland
 import QtQuick
 
@@ -29,6 +30,20 @@ Scope {
     // Which module's page is showing. Empty means the grid.
     property string page: ""
 
+    // Set by NotificationList's History button. Task 5 reads this to show the
+    // history view; nothing consumes it yet.
+    property bool history: false
+
+    // The balloons read this to stand down while the drawer holds the space.
+    FileView {
+        id: drawerFlag
+        path: (Quickshell.env("XDG_RUNTIME_DIR") || "/tmp") + "/notifyd/drawer"
+        atomicWrites: true
+        printErrors: false
+    }
+
+    onOpenChanged: drawerFlag.setText(root.open ? "1\n" : "0\n")
+
     readonly property var screenObj:
         Quickshell.screens.find(s => s.name === root.monitor) ?? Quickshell.screens[0]
 
@@ -123,16 +138,15 @@ Scope {
                     anchors.margins: 16
                     visible: root.page === ""
 
-                    // Reserved for the notification engine. An empty Item that
-                    // claims the space rather than a placeholder graphic: the
-                    // grid has to sit where it will sit once notifications
-                    // arrive, or the layout is tuned against a position that
-                    // does not survive.
-                    Item {
+                    // The notification engine's space. The live queue lists
+                    // here while the drawer is open; the balloons stand down
+                    // because the drawer flag above is set.
+                    NotificationList {
                         id: notifications
                         anchors { top: parent.top; left: parent.left; right: parent.right }
                         anchors.bottom: grid.top
                         anchors.bottomMargin: 16
+                        onHistory: root.history = true
                     }
 
                     // Fixed, never scrolled. Three columns at 600px with a