IMGUITextCursorFix (#7)

Author: Keelhauled

BepInEx.IMGUITextCursorFix/BepInEx.IMGUITextCursorFix.csproj

@@ -0,0 +1,5 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net35</TargetFramework>
+  </PropertyGroup>
+</Project>

BepInEx.IMGUITextCursorFix/IMGUITextCursorFix.cs

@@ -0,0 +1,37 @@
+using System.Collections.Generic;
+using System.Reflection.Emit;
+using HarmonyLib;
+using UnityEngine;
+
+namespace BepInEx
+{
+    [BepInPlugin(GUID, PluginName, Version)]
+    public class IMGUITextCursorFix : BaseUnityPlugin
+    {
+        public const string GUID = "BepInEx.IMGUITextCursorFix";
+        public const string PluginName = "IMGUITextCursorFix";
+        public const string Version = "1.0";
+
+        private void Awake()
+        {
+            Harmony.CreateAndPatchAll(typeof(Hooks));
+        }
+
+        private static class Hooks
+        {
+            // Patch created by jshepler
+            [HarmonyTranspiler, HarmonyPatch(typeof(TextEditor), "position", MethodType.Setter)]
+            private static IEnumerable<CodeInstruction> TextEditor_set_position(IEnumerable<CodeInstruction> instructions)
+            {
+                var scrollOffset = typeof(TextEditor).GetField("scrollOffset");
+
+                var cm = new CodeMatcher(instructions)
+                    .MatchForward(false, new CodeMatch(OpCodes.Stfld, scrollOffset))
+                    .Advance(-1)
+                    .RemoveInstructions(3);
+
+                return cm.InstructionEnumeration();
+            }
+        }
+    }
+}

BepInEx.IMGUITextCursorFix/Properties/AssemblyInfo.cs

@@ -0,0 +1,8 @@
+using System.Reflection;
+using static BepInEx.IMGUITextCursorFix;
+
+[assembly: AssemblyTitle(GUID)]
+[assembly: AssemblyProduct(GUID)]
+[assembly: AssemblyDescription(PluginName)]
+[assembly: AssemblyVersion(Version)]
+[assembly: AssemblyFileVersion(Version)]

BepInEx.Utility.sln

@@ -26,6 +26,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BepInEx.ResourceUnloadOptimizations", "BepInEx.ResourceUnloadOptimizations\BepInEx.ResourceUnloadOptimizations.csproj", "{68B7E221-202D-4E4E-BCDB-E138F143B140}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BepInEx.IMGUITextCursorFix", "BepInEx.IMGUITextCursorFix\BepInEx.IMGUITextCursorFix.csproj", "{A9E89941-06A7-4471-AE48-E5E5906FD15E}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -68,6 +70,10 @@ Global
 		{68B7E221-202D-4E4E-BCDB-E138F143B140}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{68B7E221-202D-4E4E-BCDB-E138F143B140}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{68B7E221-202D-4E4E-BCDB-E138F143B140}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A9E89941-06A7-4471-AE48-E5E5906FD15E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A9E89941-06A7-4471-AE48-E5E5906FD15E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A9E89941-06A7-4471-AE48-E5E5906FD15E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A9E89941-06A7-4471-AE48-E5E5906FD15E}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

README.md

@@ -42,3 +42,6 @@ Reduce unnecessary GC allocations of Unity's IMGUI (OnGUI) interface system. It
 
 ## ResourceUnloadOptimizations
 Improves loading times and reduces or eliminates stutter in games that abuse Resources.UnloadUnusedAssets and/or GC.Collect.
+
+## IMGUITextCursorFix
+This plugin addresses a bug present in certain Unity versions, starting around version 2019, which locks the IMGUI text box position at the beginning, preventing the cursor from being visible when the text exceeds the display area.