Oldchat (#11913)

* attempt at moving MainViewport to UIWidget

* oldchat (prototype)

* separate oldchat and default ss14 HUD into their own files

* restores original default game screen logic and adds that logic into separated chat game screen

* hand reloading, several tweaks to port oldchat to main ss14 branch

oldchat is currently not selectable

* screen type cvar, gameplay state screen reloading/loading

* reload screen on ui layout cvar change

* fixes up basic reloading (HUD switching is still very bad)

* some UI widget reloading for main UI screen switching

* alert sync on screen change

* inventory reload

* hotbar margin fix

* chat bubbles above viewport

* whoops

* fixes ordering of speech bubble root

* should fix the chat focus issue (at least in-game, not lobby yet)

* should fix up the lobby/game chat focus

* fixes chat for lobby, turns lobby into a UI state

* viewport UI controller

* viewport ratio selection

* whoops

* adds the /tg/ widescreen ratio

* removes warning from inventory UI controller, adds background to separated chat game screen's chat portion

* menu button reload

* unload menu buttons only from gameplay state shutdown

* bugfix

* character button fix

* adds config options for viewport width/UI layout

* variable naming changes, get or null instead of get to avoid exceptions

* moves entity system get into controller

Content.Client/UserInterface/Systems/Hotbar/HotbarUIController.cs

@@ -1,7 +1,9 @@
 using Content.Client.UserInterface.Systems.Hands;
 using Content.Client.UserInterface.Systems.Hands.Controls;
+using Content.Client.UserInterface.Systems.Hotbar.Widgets;
 using Content.Client.UserInterface.Systems.Inventory;
 using Content.Client.UserInterface.Systems.Inventory.Controls;
+using Robust.Client.UserInterface;
 using Robust.Client.UserInterface.Controllers;
 
 namespace Content.Client.UserInterface.Systems.Hotbar;
@@ -18,4 +20,46 @@ public sealed class HotbarUIController : UIController
         _hands.RegisterHandContainer(handsContainer);
         _inventory.RegisterInventoryBarContainer(inventoryBar);
     }
+
+    public void ReloadHotbar()
+    {
+        if (UIManager.ActiveScreen == null)
+        {
+            return;
+        }
+
+        var hotbar = UIManager.ActiveScreen.GetWidget<HotbarGui>();
+
+        if (hotbar == null)
+        {
+            return;
+        }
+
+        foreach (var container in GetAllItemSlotContainers(hotbar))
+        {
+            // Yes, this is dirty.
+            container.SlotGroup = container.SlotGroup;
+        }
+
+        _hands?.ReloadHands();
+        _inventory?.ReloadSlots();
+        _inventory?.RegisterInventoryBarContainer(hotbar.InventoryHotbar);
+    }
+
+    private IEnumerable<ItemSlotButtonContainer> GetAllItemSlotContainers(Control gui)
+    {
+        var result = new List<ItemSlotButtonContainer>();
+
+        foreach (var child in gui.Children)
+        {
+            if (child is ItemSlotButtonContainer container)
+            {
+                result.Add(container);
+            }
+
+            result.AddRange(GetAllItemSlotContainers(child));
+        }
+
+        return result;
+    }
 }

Content.Client/UserInterface/Systems/Hotbar/Widgets/HotbarGui.xaml

@@ -15,6 +15,7 @@
     />
     <inventory:ItemSlotButtonContainer
         Name="InventoryHotbar"
+        Access="Public"
         Visible="False"
         Columns="10"
         SlotGroup="Default"
@@ -34,7 +35,7 @@
             HorizontalExpand="True"/>
         <hands:HandsContainer
             Name="HandContainer"
-            Access="Protected"
+            Access="Public"
             HorizontalAlignment="Center"
             ColumnLimit="6" />
         <inventory:ItemSlotButtonContainer