News UI overhaul and PDA notifications (#19610)

Content.Client/CartridgeLoader/Cartridges/NewsReaderUi.cs

@@ -0,0 +1,54 @@
+using Content.Client.UserInterface.Fragments;
+using Content.Shared.CartridgeLoader.Cartridges;
+using Content.Shared.CartridgeLoader;
+using Robust.Client.UserInterface;
+
+namespace Content.Client.CartridgeLoader.Cartridges;
+
+public sealed partial class NewsReaderUi : UIFragment
+{
+    private NewsReaderUiFragment? _fragment;
+
+    public override Control GetUIFragmentRoot()
+    {
+        return _fragment!;
+    }
+
+    public override void Setup(BoundUserInterface userInterface, EntityUid? fragmentOwner)
+    {
+        _fragment = new NewsReaderUiFragment();
+
+        _fragment.OnNextButtonPressed += () =>
+        {
+            SendNewsReaderMessage(NewsReaderUiAction.Next, userInterface);
+        };
+        _fragment.OnPrevButtonPressed += () =>
+        {
+            SendNewsReaderMessage(NewsReaderUiAction.Prev, userInterface);
+        };
+        _fragment.OnNotificationSwithPressed += () =>
+        {
+            SendNewsReaderMessage(NewsReaderUiAction.NotificationSwitch, userInterface);
+        };
+    }
+
+    public override void UpdateState(BoundUserInterfaceState state)
+    {
+        switch (state)
+        {
+            case NewsReaderBoundUserInterfaceState cast:
+                _fragment?.UpdateState(cast.Article, cast.TargetNum, cast.TotalNum, cast.NotificationOn);
+                break;
+            case NewsReaderEmptyBoundUserInterfaceState empty:
+                _fragment?.UpdateEmptyState(empty.NotificationOn);
+                break;
+        }
+    }
+
+    private void SendNewsReaderMessage(NewsReaderUiAction action, BoundUserInterface userInterface)
+    {
+        var newsMessage = new NewsReaderUiMessageEvent(action);
+        var message = new CartridgeUiMessage(newsMessage);
+        userInterface.SendMessage(message);
+    }
+}