Implement HookManager UI and logic

src/CSConsole/ConsoleController.cs

@@ -202,7 +202,7 @@ namespace UnityExplorer.CSConsole
                 {
                     // The compiled code was not REPL, so it was a using directive or it defined classes.
 
-                    string output = ScriptEvaluator._textWriter.ToString();
+                    string output = Evaluator._textWriter.ToString();
                     var outputSplit = output.Split('\n');
                     if (outputSplit.Length >= 2)
                         output = outputSplit[outputSplit.Length - 2];

src/Core/Config/ConfigManager.cs

@@ -37,6 +37,7 @@ namespace UnityExplorer.Core.Config
         public static ConfigElement<string> CSConsoleData;
         public static ConfigElement<string> OptionsPanelData;
         public static ConfigElement<string> ConsoleLogData;
+        public static ConfigElement<string> HookManagerData;
 
         internal static readonly Dictionary<string, IConfigElement> ConfigElements = new Dictionary<string, IConfigElement>();
         internal static readonly Dictionary<string, IConfigElement> InternalConfigs = new Dictionary<string, IConfigElement>();
@@ -126,6 +127,7 @@ namespace UnityExplorer.Core.Config
             CSConsoleData = new ConfigElement<string>("CSConsole", "", "", true);
             OptionsPanelData = new ConfigElement<string>("OptionsPanel", "", "", true);
             ConsoleLogData = new ConfigElement<string>("ConsoleLog", "", "", true);
+            HookManagerData = new ConfigElement<string>("HookManager", "", "", true);
         }
     }
 }

src/ExplorerCore.cs

@@ -20,7 +20,7 @@ namespace UnityExplorer
     public static class ExplorerCore
     {
         public const string NAME = "UnityExplorer";
-        public const string VERSION = "4.2.1";
+        public const string VERSION = "4.3.0";
         public const string AUTHOR = "Sinai";
         public const string GUID = "com.sinai.unityexplorer";
 

src/Hooks/AddHookCell.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using UnityEngine;
+using UnityEngine.UI;
+using UnityExplorer.UI;
+using UnityExplorer.UI.Widgets;
+
+namespace UnityExplorer.Hooks
+{
+    public class AddHookCell : ICell
+    {
+        public bool Enabled => UIRoot.activeSelf;
+
+        public RectTransform Rect { get; set; }
+        public GameObject UIRoot { get; set; }
+
+        public float DefaultHeight => 30;
+
+        public Text MethodNameLabel;
+        public Text HookedLabel;
+        public ButtonRef HookButton;
+
+        public int CurrentDisplayedIndex;
+
+        private void OnHookClicked()
+        {
+            HookManager.Instance.AddHookClicked(CurrentDisplayedIndex);
+        }
+
+        public void Enable()
+        {
+            this.UIRoot.SetActive(true);
+        }
+
+        public void Disable()
+        {
+            this.UIRoot.SetActive(false);
+        }
+
+        public GameObject CreateContent(GameObject parent)
+        {
+            UIRoot = UIFactory.CreateUIObject(this.GetType().Name, parent, new Vector2(100, 30));
+            Rect = UIRoot.GetComponent<RectTransform>();
+            UIFactory.SetLayoutGroup<HorizontalLayoutGroup>(UIRoot, false, false, true, true, 5, childAlignment: TextAnchor.UpperLeft);
+            UIFactory.SetLayoutElement(UIRoot, minWidth: 100, flexibleWidth: 9999, minHeight: 30, flexibleHeight: 600);
+            UIRoot.AddComponent<ContentSizeFitter>().verticalFit = ContentSizeFitter.FitMode.PreferredSize;
+
+            HookedLabel = UIFactory.CreateLabel(UIRoot, "HookedLabel", "✓", TextAnchor.MiddleCenter, Color.green);
+            UIFactory.SetLayoutElement(HookedLabel.gameObject, minHeight: 25, minWidth: 100);
+
+            HookButton = UIFactory.CreateButton(UIRoot, "HookButton", "Hook", new Color(0.2f, 0.25f, 0.2f));
+            UIFactory.SetLayoutElement(HookButton.Component.gameObject, minHeight: 25, minWidth: 100);
+            HookButton.OnClick += OnHookClicked;
+
+            MethodNameLabel = UIFactory.CreateLabel(UIRoot, "MethodName", "NOT SET", TextAnchor.MiddleLeft);
+            UIFactory.SetLayoutElement(MethodNameLabel.gameObject, minHeight: 25, flexibleWidth: 9999);
+
+            return UIRoot;
+        }
+    }
+}

src/Hooks/HookCell.cs

@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using UnityEngine;
+using UnityEngine.UI;
+using UnityExplorer.UI;
+using UnityExplorer.UI.Widgets;
+
+namespace UnityExplorer.Hooks
+{
+    public class HookCell : ICell
+    {
+        public bool Enabled => UIRoot.activeSelf;
+
+        public RectTransform Rect { get; set; }
+        public GameObject UIRoot { get; set; }
+
+        public float DefaultHeight => 30;
+
+        public Text MethodNameLabel;
+        public ButtonRef EditPatchButton;
+        public ButtonRef ToggleActiveButton;
+        public ButtonRef DeleteButton;
+
+        public int CurrentDisplayedIndex;
+
+        private void OnToggleActiveClicked()
+        {
+            HookManager.Instance.EnableOrDisableHookClicked(CurrentDisplayedIndex);
+        }
+
+        private void OnDeleteClicked()
+        {
+            HookManager.Instance.DeleteHookClicked(CurrentDisplayedIndex);
+        }
+
+        private void OnEditPatchClicked()
+        {
+            HookManager.Instance.EditPatchClicked(CurrentDisplayedIndex);
+        }
+
+        public GameObject CreateContent(GameObject parent)
+        {
+            UIRoot = UIFactory.CreateUIObject(this.GetType().Name, parent, new Vector2(100, 30));
+            Rect = UIRoot.GetComponent<RectTransform>();
+            UIFactory.SetLayoutGroup<HorizontalLayoutGroup>(UIRoot, false, false, true, true, 4, childAlignment: TextAnchor.UpperLeft);
+            UIFactory.SetLayoutElement(UIRoot, minWidth: 100, flexibleWidth: 9999, minHeight: 30, flexibleHeight: 600);
+            UIRoot.AddComponent<ContentSizeFitter>().verticalFit = ContentSizeFitter.FitMode.PreferredSize;
+
+            MethodNameLabel = UIFactory.CreateLabel(UIRoot, "MethodName", "NOT SET", TextAnchor.MiddleLeft);
+            UIFactory.SetLayoutElement(MethodNameLabel.gameObject, minHeight: 25, flexibleWidth: 9999);
+
+            ToggleActiveButton = UIFactory.CreateButton(UIRoot, "ToggleActiveBtn", "Enabled", new Color(0.15f, 0.2f, 0.15f));
+            UIFactory.SetLayoutElement(ToggleActiveButton.Component.gameObject, minHeight: 25, minWidth: 100);
+            ToggleActiveButton.OnClick += OnToggleActiveClicked;
+
+            DeleteButton = UIFactory.CreateButton(UIRoot, "DeleteButton", "Delete", new Color(0.2f, 0.15f, 0.15f));
+            UIFactory.SetLayoutElement(DeleteButton.Component.gameObject, minHeight: 25, minWidth: 100);
+            DeleteButton.OnClick += OnDeleteClicked;
+
+            EditPatchButton = UIFactory.CreateButton(UIRoot, "EditButton", "Log Patch Source", new Color(0.15f, 0.15f, 0.15f));
+            UIFactory.SetLayoutElement(EditPatchButton.Component.gameObject, minHeight: 25, minWidth: 150);
+            EditPatchButton.OnClick += OnEditPatchClicked;
+
+            return UIRoot;
+        }
+
+        public void Disable()
+        {
+            UIRoot.SetActive(false);
+        }
+
+        public void Enable()
+        {
+            UIRoot.SetActive(true);
+        }
+    }
+}

src/Hooks/HookInstance.cs

@@ -0,0 +1,193 @@
+using System;
+using System.CodeDom.Compiler;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using HarmonyLib;
+using Microsoft.CSharp;
+using UnityExplorer.CSConsole;
+
+namespace UnityExplorer.Hooks
+{
+    public class HookInstance
+    {
+        private static readonly StringBuilder evalOutput = new StringBuilder();
+        private static readonly ScriptEvaluator scriptEvaluator = new ScriptEvaluator(new StringWriter(evalOutput));
+
+        // Instance
+
+        public bool Enabled;
+        public MethodInfo TargetMethod;
+        public string GeneratedSource;
+
+        private string shortSignature;
+        private PatchProcessor patchProcessor;
+        private HarmonyMethod patchDelegate;
+        private MethodInfo patchDelegateMethodInfo;
+
+        public HookInstance(MethodInfo targetMethod)
+        {
+            this.TargetMethod = targetMethod;
+            this.shortSignature = $"{targetMethod.DeclaringType.Name}.{targetMethod.Name}";
+            GenerateProcessorAndDelegate();
+            Patch();
+        }
+
+        private void GenerateProcessorAndDelegate()
+        {
+            try
+            {
+                patchProcessor = ExplorerCore.Harmony.CreateProcessor(TargetMethod);
+
+                // Dynamically compile the patch method
+
+                scriptEvaluator.Run(GeneratePatchSourceCode(TargetMethod));
+
+                // Get the compiled method and check for errors
+
+                string output = scriptEvaluator._textWriter.ToString();
+                var outputSplit = output.Split('\n');
+                if (outputSplit.Length >= 2)
+                    output = outputSplit[outputSplit.Length - 2];
+                evalOutput.Clear();
+                if (ScriptEvaluator._reportPrinter.ErrorsCount > 0)
+                    throw new FormatException($"Unable to compile the code. Evaluator's last output was:\r\n{output}");
+
+                // Could publicize MCS to avoid this reflection, but not bothering for now
+                var source = (Mono.CSharp.CompilationSourceFile)ReflectionUtility.GetFieldInfo(typeof(Mono.CSharp.Evaluator), "source_file")
+                             .GetValue(scriptEvaluator);
+                var type = (Mono.CSharp.Class)source.Containers.Last();
+                var systemType = ((Mono.CSharp.TypeSpec)ReflectionUtility.GetPropertyInfo(typeof(Mono.CSharp.TypeDefinition), "Definition")
+                                 .GetValue(type, null))
+                                 .GetMetaInfo();
+
+                this.patchDelegateMethodInfo = systemType.GetMethod("Patch", ReflectionUtility.FLAGS);
+
+                // Actually create the harmony patch
+                this.patchDelegate = new HarmonyMethod(patchDelegateMethodInfo);
+                patchProcessor.AddPostfix(patchDelegate);
+            }
+            catch (Exception ex)
+            {
+                ExplorerCore.LogWarning($"Exception creating patch processor for target method {TargetMethod.FullDescription()}!\r\n{ex}");
+            }
+        }
+
+        private string GeneratePatchSourceCode(MethodInfo targetMethod)
+        {
+            var codeBuilder = new StringBuilder();
+
+            codeBuilder.AppendLine($"public class DynamicPatch_{DateTime.Now.Ticks}");
+            codeBuilder.AppendLine("{");
+
+            // Arguments 
+
+            codeBuilder.Append("    public static void Patch(System.Reflection.MethodBase __originalMethod");
+
+            if (!targetMethod.IsStatic)
+                codeBuilder.Append($", {targetMethod.DeclaringType.FullName} __instance");
+
+            if (targetMethod.ReturnType != typeof(void))
+                codeBuilder.Append($", {targetMethod.ReturnType.FullName} __result");
+
+            int paramIdx = 0;
+            var parameters = targetMethod.GetParameters();
+            foreach (var param in parameters)
+            {
+                codeBuilder.Append($", {param.ParameterType.FullName} __{paramIdx}");
+                paramIdx++;
+            }
+
+            codeBuilder.Append(")\n");
+
+            // Patch body
+
+            codeBuilder.AppendLine("    {");
+
+            codeBuilder.AppendLine("        try {");
+
+            // Log message 
+
+            var logMessage = new StringBuilder();
+            logMessage.AppendLine($"$@\"Patch called: {shortSignature}");
+            
+            if (!targetMethod.IsStatic)
+                logMessage.AppendLine("__instance: {__instance.ToString()}");
+
+            paramIdx = 0;
+            foreach (var param in parameters)
+            {
+                if (param.ParameterType.IsValueType)
+                    logMessage.AppendLine($"Parameter {paramIdx}: {{__{paramIdx}.ToString()}}");
+                else
+                    logMessage.AppendLine($"Parameter {paramIdx}: {{__{paramIdx}?.ToString() ?? \"null\"}}");
+                paramIdx++;
+            }
+
+            if (targetMethod.ReturnType != typeof(void))
+            {
+                if (targetMethod.ReturnType.IsValueType)
+                    logMessage.AppendLine("Return value: {__result.ToString()}");
+                else
+                    logMessage.AppendLine("Return value: {__result?.ToString() ?? \"null\"}");
+            }
+
+            logMessage.Append('"');
+
+            codeBuilder.AppendLine($"            UnityExplorer.ExplorerCore.Log({logMessage});");
+            codeBuilder.AppendLine("        }");
+            codeBuilder.AppendLine("        catch (System.Exception ex) {");
+            codeBuilder.AppendLine($"            UnityExplorer.ExplorerCore.LogWarning($\"Exception in patch of {shortSignature}:\\n{{ex}}\");");
+            codeBuilder.AppendLine("        }");
+
+            // End patch body
+
+            codeBuilder.AppendLine("    }");
+
+            // End class
+
+            codeBuilder.AppendLine("}");
+
+            return GeneratedSource = codeBuilder.ToString();
+        }
+
+        public void TogglePatch()
+        {
+            Enabled = !Enabled;
+            if (Enabled)
+                Patch();
+            else
+                Unpatch();
+        }
+
+        public void Patch()
+        {
+            try
+            {
+                patchProcessor.Patch();
+                Enabled = true;
+            }
+            catch (Exception ex)
+            {
+                ExplorerCore.LogWarning($"Exception hooking method!\r\n{ex}");
+            }
+        }
+
+        public void Unpatch()
+        {
+            if (!Enabled)
+                return;
+
+            try
+            {
+                this.patchProcessor.Unpatch(patchDelegateMethodInfo);
+                Enabled = false;
+            }
+            catch (Exception ex)
+            {
+                ExplorerCore.LogWarning($"Exception unpatching method: {ex}");
+            }
+        }
+    }
+}

src/Hooks/HookManager.cs

@@ -0,0 +1,233 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using HarmonyLib;
+using UnityEngine;
+using UnityExplorer.UI;
+using UnityExplorer.UI.Panels;
+using UnityExplorer.UI.Widgets;
+
+namespace UnityExplorer.Hooks
+{
+    public class HookManager : ICellPoolDataSource<HookCell>, ICellPoolDataSource<AddHookCell>
+    {
+        private static HookManager s_instance;
+        public static HookManager Instance => s_instance ?? (s_instance = new HookManager());
+
+        public HookManagerPanel Panel => UIManager.GetPanel<HookManagerPanel>(UIManager.Panels.HookManager);
+
+        public int ItemCount => addingMethods ? currentFilteredMethods.Count : currentHooks.Count;
+
+        private bool addingMethods;
+        private HashSet<string> hookedSignatures = new HashSet<string>();
+        private readonly OrderedDictionary currentHooks = new OrderedDictionary();
+        private readonly List<MethodInfo> currentAddEligableMethods = new List<MethodInfo>();
+        private readonly List<MethodInfo> currentFilteredMethods = new List<MethodInfo>();
+
+        public void OnClassSelectedForHooks(string typeFullName)
+        {
+            var type = ReflectionUtility.GetTypeByName(typeFullName);
+            if (type == null)
+            {
+                ExplorerCore.LogWarning($"Could not find any type by name {typeFullName}!");
+                return;
+            }
+
+            Panel.SetAddHooksLabelType(SignatureHighlighter.Parse(type, true));
+
+            Panel.ResetMethodFilter();
+            currentFilteredMethods.Clear();
+            currentAddEligableMethods.Clear();
+            foreach (var method in type.GetMethods(ReflectionUtility.FLAGS))
+            {
+                if (method.IsGenericMethod || method.IsAbstract || ReflectionUtility.IsBlacklisted(method))
+                    continue;
+                currentAddEligableMethods.Add(method);
+                currentFilteredMethods.Add(method);
+            }
+
+            addingMethods = true;
+            Panel.SetAddPanelActive(true);
+            Panel.MethodResultsScrollPool.Refresh(true, true);
+        }
+
+        public void CloseAddHooks()
+        {
+            addingMethods = false;
+            Panel.SetAddPanelActive(false);
+            Panel.HooksScrollPool.Refresh(true, false);
+        }
+
+        public void OnHookAllClicked()
+        {
+            foreach (var method in currentAddEligableMethods)
+                AddHook(method);
+            Panel.MethodResultsScrollPool.Refresh(true, false);
+        }
+
+        public void AddHookClicked(int index)
+        {
+            if (index >= this.currentFilteredMethods.Count)
+                return;
+
+            AddHook(currentFilteredMethods[index]);
+            Panel.MethodResultsScrollPool.Refresh(true, false);
+        }
+
+        public void AddHook(MethodInfo method)
+        {
+            var sig = method.FullDescription();
+            if (hookedSignatures.Contains(sig))
+                return;
+
+            var hook = new HookInstance(method);
+            if (hook.Enabled)
+            {
+                hookedSignatures.Add(sig);
+                currentHooks.Add(sig, hook);
+            }
+        }
+
+        public void EnableOrDisableHookClicked(int index)
+        {
+            var hook = (HookInstance)currentHooks[index];
+            hook.TogglePatch();
+
+            Panel.HooksScrollPool.Refresh(true, false);
+        }
+
+        public void DeleteHookClicked(int index)
+        {
+            var hook = (HookInstance)currentHooks[index];
+            hook.Unpatch();
+            currentHooks.RemoveAt(index);
+            hookedSignatures.Remove(hook.TargetMethod.FullDescription());
+
+            Panel.HooksScrollPool.Refresh(true, false);
+        }
+
+        public void EditPatchClicked(int index)
+        {
+            var hook = (HookInstance)currentHooks[index];
+            ExplorerCore.Log(hook.GeneratedSource);
+        }
+
+        public void OnAddHookFilterInputChanged(string input)
+        {
+            currentFilteredMethods.Clear();
+
+            if (string.IsNullOrEmpty(input))
+                currentFilteredMethods.AddRange(currentAddEligableMethods);
+            else
+            {
+                foreach (var method in currentAddEligableMethods)
+                {
+                    if (method.Name.ContainsIgnoreCase(input))
+                        currentFilteredMethods.Add(method);
+                }
+            }
+
+            Panel.MethodResultsScrollPool.Refresh(true, true);
+        }
+
+        // OnBorrow methods not needed
+        public void OnCellBorrowed(HookCell cell) { }
+        public void OnCellBorrowed(AddHookCell cell) { }
+
+        // Set current hook cell
+
+        public void SetCell(HookCell cell, int index)
+        {
+            if (index >= this.currentHooks.Count)
+            {
+                cell.Disable();
+                return;
+            }
+
+            cell.CurrentDisplayedIndex = index;
+            var hook = (HookInstance)this.currentHooks[index];
+            
+            cell.MethodNameLabel.text = HighlightMethod(hook.TargetMethod);
+
+            cell.ToggleActiveButton.ButtonText.text = hook.Enabled ? "Enabled" : "Disabled";
+            RuntimeProvider.Instance.SetColorBlockAuto(cell.ToggleActiveButton.Component, 
+                hook.Enabled ? new Color(0.15f, 0.2f, 0.15f) : new Color(0.2f, 0.2f, 0.15f));
+        }
+
+        // Set eligable method cell
+
+        public void SetCell(AddHookCell cell, int index)
+        {
+            if (index >= this.currentFilteredMethods.Count)
+            {
+                cell.Disable();
+                return;
+            }
+
+            cell.CurrentDisplayedIndex = index;
+            var method = this.currentFilteredMethods[index];
+
+            cell.MethodNameLabel.text = HighlightMethod(method);
+
+            var sig = method.FullDescription();
+            if (hookedSignatures.Contains(sig))
+            {
+                cell.HookButton.Component.gameObject.SetActive(false);
+                cell.HookedLabel.gameObject.SetActive(true);
+            }
+            else
+            {
+                cell.HookButton.Component.gameObject.SetActive(true);
+                cell.HookedLabel.gameObject.SetActive(false);
+            }
+        }
+
+        // private static readonly string VOID_HIGHLIGHT = $"<color=#{SignatureHighlighter.keywordBlueHex}>void</color> ";
+
+        private static readonly Dictionary<string, string> highlightedMethods = new Dictionary<string, string>();
+
+        private string HighlightMethod(MethodInfo method)
+        {
+            var sig = method.FullDescription();
+            if (highlightedMethods.ContainsKey(sig))
+                return highlightedMethods[sig];
+
+            var sb = new StringBuilder();
+
+            // declaring type
+            sb.Append(SignatureHighlighter.Parse(method.DeclaringType, false));
+            sb.Append('.');
+
+            // method name
+            var color = !method.IsStatic
+                    ? SignatureHighlighter.METHOD_INSTANCE
+                    : SignatureHighlighter.METHOD_STATIC;
+            sb.Append($"<color={color}>{method.Name}</color>");
+
+            // arguments
+            sb.Append('(');
+            var args = method.GetParameters();
+            if (args != null && args.Any())
+            {
+                int i = 0;
+                foreach (var param in args)
+                {
+                    sb.Append(SignatureHighlighter.Parse(param.ParameterType, false));
+                    sb.Append(' ');
+                    sb.Append($"<color={SignatureHighlighter.LOCAL_ARG}>{param.Name}</color>");
+                    i++;
+                    if (i < args.Length)
+                        sb.Append(", ");
+                }
+            }
+            sb.Append(')');
+
+            var ret = sb.ToString();
+            highlightedMethods.Add(sig, ret);
+            return ret;
+        }
+    }
+}

src/UI/Panels/HookManagerPanel.cs

@@ -0,0 +1,120 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using UnityEngine;
+using UnityEngine.UI;
+using UnityExplorer.Core.Config;
+using UnityExplorer.Hooks;
+using UnityExplorer.UI.Widgets;
+using UnityExplorer.UI.Widgets.AutoComplete;
+
+namespace UnityExplorer.UI.Panels
+{
+    public class HookManagerPanel : UIPanel
+    {
+        public override UIManager.Panels PanelType => UIManager.Panels.HookManager;
+
+        public override string Name => "Hooks";
+        public override int MinWidth => 500;
+        public override int MinHeight => 600;
+        public override bool ShowByDefault => false;
+
+        public ScrollPool<HookCell> HooksScrollPool;
+        public ScrollPool<AddHookCell> MethodResultsScrollPool;
+
+        private GameObject addHooksPanel;
+        private GameObject currentHooksPanel;
+        private InputFieldRef classInputField;
+        private Text addHooksLabel;
+        private InputFieldRef methodFilterInput;
+
+        public override string GetSaveDataFromConfigManager() => ConfigManager.HookManagerData.Value;
+
+        public override void DoSaveToConfigElement() => ConfigManager.HookManagerData.Value = this.ToSaveData();
+
+        private void OnClassInputAddClicked()
+        {
+            HookManager.Instance.OnClassSelectedForHooks(this.classInputField.Text);
+        }
+
+        public void SetAddHooksLabelType(string typeText) => addHooksLabel.text = $"Adding hooks to: {typeText}";
+
+        public void SetAddPanelActive(bool show)
+        {
+            addHooksPanel.SetActive(show);
+            currentHooksPanel.SetActive(!show);
+        }
+
+        public void ResetMethodFilter() => methodFilterInput.Text = string.Empty;
+
+        public override void ConstructPanelContent()
+        {
+            // Active hooks scroll pool
+
+            currentHooksPanel = UIFactory.CreateUIObject("CurrentHooksPanel", this.content);
+            UIFactory.SetLayoutElement(currentHooksPanel, flexibleHeight: 9999, flexibleWidth: 9999);
+            UIFactory.SetLayoutGroup<VerticalLayoutGroup>(currentHooksPanel, true, true, true, true);
+
+            var addRow = UIFactory.CreateHorizontalGroup(currentHooksPanel, "AddRow", false, true, true, true, 4,
+                new Vector4(2, 2, 2, 2), new Color(0.2f, 0.2f, 0.2f));
+            UIFactory.SetLayoutElement(addRow, minHeight: 30, flexibleWidth: 9999);
+
+            classInputField = UIFactory.CreateInputField(addRow, "ClassInput", "Enter a class to add hooks to...");
+            UIFactory.SetLayoutElement(classInputField.Component.gameObject, flexibleWidth: 9999);
+            new TypeCompleter(typeof(object), classInputField, false, false);
+
+            var addButton = UIFactory.CreateButton(addRow, "AddButton", "Add Hooks");
+            UIFactory.SetLayoutElement(addButton.Component.gameObject, minWidth: 100, minHeight: 25);
+            addButton.OnClick += OnClassInputAddClicked;
+
+            var hooksLabel = UIFactory.CreateLabel(currentHooksPanel, "HooksLabel", "Current Hooks", TextAnchor.MiddleCenter);
+            UIFactory.SetLayoutElement(hooksLabel.gameObject, minHeight: 30, flexibleWidth: 9999);
+
+            HooksScrollPool = UIFactory.CreateScrollPool<HookCell>(currentHooksPanel, "HooksScrollPool", 
+                out GameObject hooksScroll, out GameObject hooksContent);
+            UIFactory.SetLayoutElement(hooksScroll, flexibleHeight: 9999);
+            HooksScrollPool.Initialize(HookManager.Instance);
+
+            // Add hooks panel
+
+            addHooksPanel = UIFactory.CreateUIObject("AddHooksPanel", this.content);
+            UIFactory.SetLayoutElement(addHooksPanel, flexibleHeight: 9999, flexibleWidth: 9999);
+            UIFactory.SetLayoutGroup<VerticalLayoutGroup>(addHooksPanel, true, true, true, true);
+
+            addHooksLabel = UIFactory.CreateLabel(addHooksPanel, "AddLabel", "NOT SET", TextAnchor.MiddleCenter);
+            UIFactory.SetLayoutElement(addHooksLabel.gameObject, minHeight: 30, minWidth: 100, flexibleWidth: 9999);
+
+            var buttonRow = UIFactory.CreateHorizontalGroup(addHooksPanel, "ButtonRow", false, false, true, true, 5);
+            UIFactory.SetLayoutElement(buttonRow, minHeight: 25, flexibleWidth: 9999);
+
+            var doneButton = UIFactory.CreateButton(buttonRow, "DoneButton", "Done", new Color(0.2f, 0.3f, 0.2f));
+            UIFactory.SetLayoutElement(doneButton.Component.gameObject, minHeight: 25, flexibleWidth: 9999);
+            doneButton.OnClick += HookManager.Instance.CloseAddHooks;
+
+            var patchAllButton = UIFactory.CreateButton(buttonRow, "PatchAllButton", "Hook ALL methods in class", new Color(0.3f, 0.3f, 0.2f));
+            UIFactory.SetLayoutElement(patchAllButton.Component.gameObject, minHeight: 25, flexibleWidth: 9999);
+            patchAllButton.OnClick += HookManager.Instance.OnHookAllClicked;
+
+            methodFilterInput = UIFactory.CreateInputField(addHooksPanel, "FilterInputField", "Filter method names...");
+            UIFactory.SetLayoutElement(methodFilterInput.Component.gameObject, minHeight: 30, flexibleWidth: 9999);
+            methodFilterInput.OnValueChanged += HookManager.Instance.OnAddHookFilterInputChanged;
+
+            MethodResultsScrollPool = UIFactory.CreateScrollPool<AddHookCell>(addHooksPanel, "MethodAddScrollPool",
+                out GameObject addScrollRoot, out GameObject addContent);
+            UIFactory.SetLayoutElement(addScrollRoot, flexibleHeight: 9999);
+            MethodResultsScrollPool.Initialize(HookManager.Instance);
+
+            addHooksPanel.gameObject.SetActive(false);
+        }
+
+        protected internal override void DoSetDefaultPosAndAnchors()
+        {
+            this.Rect.anchorMin = new Vector2(0.5f, 0.5f);
+            this.Rect.anchorMax = new Vector2(0.5f, 0.5f);
+            this.Rect.SetSizeWithCurrentAnchors(RectTransform.Axis.Horizontal, MinWidth);
+            this.Rect.SetSizeWithCurrentAnchors(RectTransform.Axis.Vertical, MinHeight);
+        }
+
+    }
+}

src/UI/UIManager.cs

@@ -29,6 +29,7 @@ namespace UnityExplorer.UI
             AutoCompleter,
             MouseInspector,
             UIInspectorResults,
+            HookManager,
         }
 
         public enum VerticalAnchor
@@ -107,6 +108,7 @@ namespace UnityExplorer.UI
             UIPanels.Add(Panels.ObjectExplorer, new ObjectExplorerPanel());
             UIPanels.Add(Panels.Inspector, new InspectorPanel());
             UIPanels.Add(Panels.CSConsole, new CSConsolePanel());
+            UIPanels.Add(Panels.HookManager, new HookManagerPanel());
             UIPanels.Add(Panels.ConsoleLog, new LogPanel());
             UIPanels.Add(Panels.Options, new OptionsPanel());
             UIPanels.Add(Panels.UIInspectorResults, new UiInspectorResultsPanel());
@@ -242,14 +244,14 @@ namespace UnityExplorer.UI
                     NavBarRect.anchorMin = new Vector2(0.5f, 1f);
                     NavBarRect.anchorMax = new Vector2(0.5f, 1f);
                     NavBarRect.anchoredPosition = new Vector2(NavBarRect.anchoredPosition.x, 0);
-                    NavBarRect.sizeDelta = new Vector2(1000f, 35f);
+                    NavBarRect.sizeDelta = new Vector2(1080f, 35f);
                     break;
 
                 case VerticalAnchor.Bottom:
                     NavBarRect.anchorMin = new Vector2(0.5f, 0f);
                     NavBarRect.anchorMax = new Vector2(0.5f, 0f);
                     NavBarRect.anchoredPosition = new Vector2(NavBarRect.anchoredPosition.x, 35);
-                    NavBarRect.sizeDelta = new Vector2(1000f, 35f);
+                    NavBarRect.sizeDelta = new Vector2(1080f, 35f);
                     break;
             }
         }

src/UnityExplorer.csproj

@@ -215,6 +215,9 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Hooks\HookCell.cs" />
+    <Compile Include="Hooks\HookInstance.cs" />
+    <Compile Include="Hooks\HookManager.cs" />
     <Compile Include="Core\Config\InternalConfigHandler.cs" />
     <Compile Include="CacheObject\CacheConfigEntry.cs" />
     <Compile Include="CacheObject\Views\CacheConfigCell.cs" />
@@ -235,6 +238,7 @@
     <Compile Include="Core\Utility\ArgumentUtility.cs" />
     <Compile Include="Core\Utility\MiscUtility.cs" />
     <Compile Include="Core\Utility\ParseUtility.cs" />
+    <Compile Include="Hooks\MethodAddCell.cs" />
     <Compile Include="Inspectors\GameObjectWidgets\ComponentCell.cs" />
     <Compile Include="Inspectors\GameObjectWidgets\ComponentList.cs" />
     <Compile Include="Inspectors\GameObjectWidgets\GameObjectControls.cs" />
@@ -269,6 +273,7 @@
     <Compile Include="Inspectors\ReflectionInspector.cs" />
     <Compile Include="CacheObject\IValues\InteractiveValueStruct.cs" />
     <Compile Include="UI\Models\InputFieldRef.cs" />
+    <Compile Include="UI\Panels\HookManagerPanel.cs" />
     <Compile Include="UI\Panels\UiInspectorResultsPanel.cs" />
     <Compile Include="UI\Pool.cs" />
     <Compile Include="UI\Panels\LogPanel.cs" />