From 2f492d9ed11e8d6a5524e60c0fa1dc1960215e48 Mon Sep 17 00:00:00 2001
From: pas2704 <pas2704@outlook.com>
Date: Tue, 20 May 2025 17:09:29 -0400
Subject: [PATCH] Add interface for gui handling so plugins can determine if
 inputs are being blocked or if the mouse is being drawn (etc)

---
 CringeLauncher/ImGuiHandler.cs            | 17 ++++++++++++-----
 CringePlugins/Abstractions/IGuiHandler.cs | 23 +++++++++++++++++++++++
 CringePlugins/Render/RenderHandler.cs     | 11 +++++++----
 3 files changed, 42 insertions(+), 9 deletions(-)
 create mode 100644 CringePlugins/Abstractions/IGuiHandler.cs

diff --git a/CringeLauncher/ImGuiHandler.cs b/CringeLauncher/ImGuiHandler.cs
index decd8b5..97a9bbd 100644
--- a/CringeLauncher/ImGuiHandler.cs
+++ b/CringeLauncher/ImGuiHandler.cs
@@ -15,7 +15,7 @@ using Sandbox.Graphics.GUI;
 
 namespace CringeLauncher;
 
-internal class ImGuiHandler : IDisposable
+internal sealed class ImGuiHandler : IGuiHandler, IDisposable
 {
     private DeviceContext? _deviceContext;
     private int _blockKeysCounter;
@@ -25,16 +25,23 @@ internal class ImGuiHandler : IDisposable
     public bool BlockKeys => _blockKeysCounter > 0;
     public bool DrawMouse { get; private set; }
 
-    internal bool MouseToggle { get; set; }
-    internal bool MouseKey { get; set; }
+    public bool MouseToggle { get; set; }
+    public bool MouseKey { get; set; }
+
+    public bool Initialized => _init;
 
     public static ImGuiHandler? Instance;
 
     public static RenderTargetView? Rtv;
 
-    private readonly IRootRenderComponent _renderHandler = new RenderHandler();
+    private readonly IRootRenderComponent _renderHandler;
     private static bool _init;
 
+    public ImGuiHandler()
+    {
+        _renderHandler = new RenderHandler(this);
+    }
+
     public unsafe void Init(nint windowHandle, Device1 device, DeviceContext deviceContext)
     {
         _deviceContext = deviceContext;
@@ -84,7 +91,7 @@ internal class ImGuiHandler : IDisposable
         else
             _blockKeysCounter--;
 
-            DrawMouse = io.MouseDrawCursor || MouseToggle || MouseKey;
+        DrawMouse = io.MouseDrawCursor || MouseToggle || MouseKey;
 
         var focusedScreen = MyScreenManager.GetScreenWithFocus(); //migrated logic from MyDX9Gui.Draw
 
diff --git a/CringePlugins/Abstractions/IGuiHandler.cs b/CringePlugins/Abstractions/IGuiHandler.cs
new file mode 100644
index 0000000..bb9d5e0
--- /dev/null
+++ b/CringePlugins/Abstractions/IGuiHandler.cs
@@ -0,0 +1,23 @@
+namespace CringePlugins.Abstractions;
+public interface IGuiHandler
+{
+    /// <summary>
+    /// Whether or not the Gui Handler is blocking keys from the game's input system.
+    /// </summary>
+    bool BlockKeys { get; }
+
+    /// <summary>
+    /// Whether or not the Gui Handler is blocking mouse input (excluding position) from the game's input system.
+    /// </summary>
+    bool BlockMouse { get; }
+
+    /// <summary>
+    /// Whether or not the Gui Handler is drawing the mouse cursor via keybinds (does not include when the game is drawing the mouse cursor).
+    /// </summary>
+    bool DrawMouse { get; }
+
+    /// <summary>
+    /// Whether or not the Gui Handler is initialized.
+    /// </summary>
+    bool Initialized { get; }
+}
diff --git a/CringePlugins/Render/RenderHandler.cs b/CringePlugins/Render/RenderHandler.cs
index 9d800ef..5cb413c 100644
--- a/CringePlugins/Render/RenderHandler.cs
+++ b/CringePlugins/Render/RenderHandler.cs
@@ -8,15 +8,18 @@ namespace CringePlugins.Render;
 public sealed class RenderHandler : IRootRenderComponent
 {
     private static readonly Logger Log = LogManager.GetCurrentClassLogger();
-    
+
     private static RenderHandler? _current;
+    private static IGuiHandler? _guiHandler;
     public static RenderHandler Current => _current ?? throw new InvalidOperationException("Render is not yet initialized");
-    
+    public static IGuiHandler GuiHandler => _guiHandler ?? throw new InvalidOperationException("Render is not yet initialized");
+
     private readonly ConcurrentBag<ComponentRegistration> _components = [];
 
-    internal RenderHandler()
+    internal RenderHandler(IGuiHandler guiHandler)
     {
         _current = this;
+        _guiHandler = guiHandler;
     }
 
     public void RegisterComponent<TComponent>(TComponent instance) where TComponent : IRenderComponent
@@ -29,7 +32,7 @@ public sealed class RenderHandler : IRootRenderComponent
 #if DEBUG
         ImGui.ShowDemoWindow();
 #endif
-        
+
         foreach (var (instanceType, renderComponent) in _components)
         {
             try