GUI: Implement plugin interface

Il2CppInspector.GUI/App.xaml.cs

@@ -1,5 +1,8 @@
-// Copyright (c) 2020 Katy Coe - https://www.djkaty.com - https://github.com/djkaty
-// All rights reserved
+/*
+    Copyright 2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
+
+    All rights reserved.
+*/
 
 using System;
 using System.Collections.Generic;
@@ -22,7 +25,7 @@ namespace Il2CppInspectorGUI
     /// </summary>
     public partial class App : Application, INotifyPropertyChanged
     {
-        // Catch unhandled exceptions for debugging startup failures
+        // Catch unhandled exceptions for debugging startup failures and plugins
         public App() : base() {
             var np = Environment.NewLine + Environment.NewLine;
 
@@ -30,7 +33,11 @@ namespace Il2CppInspectorGUI
                 MessageBox.Show(e.Exception.GetType() + ": " + e.Exception.Message
                                 + np + e.Exception.StackTrace
                                 + np + "More details may follow in subsequent error boxes",
-                                "Oopsie... Il2CppInspector could not start up");
+                                "Il2CppInspector encountered a fatal error");
+
+                if (e.Exception is FileNotFoundException fe)
+                    MessageBox.Show("Missing file: " + fe.FileName, "Additional error information");
+
                 var ex = e.Exception;
                 while (ex.InnerException != null) {
                     MessageBox.Show(ex.GetType() + ": " + ex.Message + np
@@ -68,7 +75,16 @@ namespace Il2CppInspectorGUI
 
         // Initialization entry point
         protected override void OnStartup(StartupEventArgs e) {
+            // Set contents of load options window
             ResetLoadOptions();
+
+            // Set handlers for plugin manager
+            PluginManager.ErrorHandler += (s, e) => {
+                MessageBox.Show($"The plugin {e.Plugin.Name} encountered an error while executing {e.Operation}: {e.Exception.Message}."
+                                + Environment.NewLine + Environment.NewLine + "The application will continue but may not behave as expected.", "Plugin error");
+            };
+
+            PluginManager.StatusHandler += (s, e) => StatusUpdate(e.Plugin, "Plugin " + e.Plugin.Name + ": " + e.Text);
         }
 
         public void ResetLoadOptions() {

Il2CppInspector.GUI/EqualityConverter.cs

@@ -0,0 +1,30 @@
+// Copyright (c) 2020 Katy Coe - https://www.djkaty.com - https://github.com/djkaty
+// All rights reserved
+
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using System.Windows;
+using System.Windows.Data;
+
+namespace Il2CppInspector.GUI
+{
+    // Adapted from https://stackoverflow.com/a/37307169 and https://stackoverflow.com/a/28316967
+    internal class EqualityConverter : IMultiValueConverter
+    {
+        public object TrueValue { get; set; }
+        public object FalseValue { get; set; }
+
+        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) {
+            if (values.Length < 2)
+                return FalseValue;
+
+            return values[0].Equals(values[1]) ? TrueValue : FalseValue;
+        }
+
+        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture) {
+            throw new NotImplementedException();
+        }
+    }
+}

Il2CppInspector.GUI/HexStringValueConverter.cs

@@ -16,7 +16,16 @@ namespace Il2CppInspector.GUI
             if (value == null || targetType != typeof(string))
                 return DependencyProperty.UnsetValue;
 
-            return ((ulong) value).ToString("x16");
+            return value switch {
+                ulong n => n.ToString("x16"),
+                long n => n.ToString("x16"),
+                uint n => n.ToString("x8"),
+                int n => n.ToString("x8"),
+                ushort n => n.ToString("x4"),
+                short n => n.ToString("x4"),
+                byte n => n.ToString("x2"),
+                _ => throw new NotImplementedException("Unknown number format")
+            };
         }
 
         public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) {

Il2CppInspector.GUI/Il2CppInspector.GUI.csproj

@@ -4,7 +4,8 @@
     <OutputType>WinExe</OutputType>
     <TargetFramework>netcoreapp3.1</TargetFramework>
     <PublishSingleFile>true</PublishSingleFile>
-    <PublishTrimmed>true</PublishTrimmed>
+    <!-- Plugins may require bass class library assemblies we're not using so disable trimming -->
+    <PublishTrimmed>false</PublishTrimmed>
     <RuntimeIdentifier>win-x64</RuntimeIdentifier>
     <UseWPF>true</UseWPF>
     <AssemblyName>Il2CppInspector</AssemblyName>

Il2CppInspector.GUI/LoadOptionsDialog.xaml.cs

@@ -1,5 +1,8 @@
-// Copyright (c) 2020 Katy Coe - https://www.djkaty.com - https://github.com/djkaty
-// All rights reserved
+/*
+    Copyright 2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
+
+    All rights reserved.
+*/
 
 using System;
 using System.Collections.Generic;

Il2CppInspector.GUI/MainWindow.xaml

@@ -434,8 +434,13 @@
                 </TextBlock>
             </Button>
 
-            <!-- Load options -->
-            <Button Grid.Row="2" Name="btnLoadOptions" Style="{StaticResource LightBoxButton}" Click="BtnLoadOptions_Click" Margin="0,0,10,10" Padding="5" HorizontalAlignment="Right" VerticalAlignment="Bottom" FontSize="18" Width="180" Content="Import options..."/>
+            <StackPanel Grid.Row="2" Orientation="Horizontal" HorizontalAlignment="Right">
+                <!-- Plugin options -->
+                <Button Name="btnPluginOptions" Style="{StaticResource LightBoxButton}" Click="BtnPluginOptions_Click" Margin="0,0,10,10" Padding="5" HorizontalAlignment="Right" VerticalAlignment="Bottom" FontSize="18" Width="180" Content="Manage plugins..."/>
+
+                <!-- Load options -->
+                <Button Name="btnLoadOptions" Style="{StaticResource LightBoxButton}" Click="BtnLoadOptions_Click" Margin="0,0,10,10" Padding="5" HorizontalAlignment="Right" VerticalAlignment="Bottom" FontSize="18" Width="180" Content="Import options..."/>
+            </StackPanel>
         </Grid>
         <Button Name="btnSelectBinaryFile" Style="{StaticResource LightBoxButton}" Margin="100" Click="BtnSelectBinaryFile_OnClick" Visibility="Hidden">
             <TextBlock TextAlignment="Center">

Il2CppInspector.GUI/MainWindow.xaml.cs

@@ -1,5 +1,8 @@
-// Copyright (c) 2020 Katy Coe - https://www.djkaty.com - https://github.com/djkaty
-// All rights reserved
+/*
+    Copyright 2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
+
+    All rights reserved.
+*/
 
 using System;
 using System.Collections.Generic;
@@ -71,6 +74,15 @@ namespace Il2CppInspectorGUI
             Process.Start(new ProcessStartInfo {FileName = e.Uri.ToString(), UseShellExecute = true});
         }
 
+        /// <summary>
+        /// Open Manage Plugins dialog
+        /// </summary>
+        private void BtnPluginOptions_Click(object sender, RoutedEventArgs e) {
+            var configDlg = new PluginManagerDialog();
+            configDlg.Owner = this;
+            configDlg.ShowDialog();
+        }
+
         /// <summary>
         /// Open Load Options dialog
         /// </summary>
@@ -109,7 +121,7 @@ namespace Il2CppInspectorGUI
             else {
                 areaBusyIndicator.Visibility = Visibility.Hidden;
                 grdFirstPage.Visibility = Visibility.Visible;
-                MessageBox.Show(this, app.LastException.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
+                MessageBox.Show(this, app.LastException.Message + Environment.NewLine + app.LastException.StackTrace, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
             }
         }
 
@@ -145,7 +157,7 @@ namespace Il2CppInspectorGUI
             else {
                 areaBusyIndicator.Visibility = Visibility.Hidden;
                 btnSelectBinaryFile.Visibility = Visibility.Visible;
-                MessageBox.Show(this, app.LastException.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
+                MessageBox.Show(this, app.LastException.Message + Environment.NewLine + app.LastException.StackTrace, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
             }
         }
 
@@ -183,7 +195,7 @@ namespace Il2CppInspectorGUI
             else {
                 areaBusyIndicator.Visibility = Visibility.Hidden;
                 grdFirstPage.Visibility = Visibility.Visible;
-                MessageBox.Show(this, app.LastException.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
+                MessageBox.Show(this, app.LastException.Message + Environment.NewLine + app.LastException.StackTrace, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
             }
         }
 

Il2CppInspector.GUI/PluginConfigurationDialog.xaml

@@ -0,0 +1,186 @@
+<Window x:Class="Il2CppInspector.GUI.PluginConfigurationDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Il2CppInspector.GUI"
+        xmlns:pluginapi="clr-namespace:Il2CppInspector.PluginAPI.V100;assembly=Il2CppInspector.Common"
+        mc:Ignorable="d"
+        Title="{Binding Path=Plugin.Name, StringFormat=Configuration for {0}}" Height="400" Width="700"
+        ResizeMode="NoResize"
+        WindowStartupLocation="CenterOwner"
+        SizeToContent="Height" MaxHeight="800">
+    <Window.Resources>
+        <local:OptionTemplateSelector x:Key="OptionTemplateSelector"/>
+        <local:HexStringValueConverter x:Key="HexStringValueConverter" />
+        <local:EqualityConverter x:Key="EqualityVisibilityConverter" TrueValue="{x:Static Visibility.Visible}" FalseValue="{x:Static Visibility.Collapsed}" />
+        <BooleanToVisibilityConverter x:Key="VisibleIfTrueConverter" />
+
+        <!-- Option layouts -->
+        <DataTemplate x:Key="TextTemplate">
+            <DockPanel>
+                <TextBlock DockPanel.Dock="Left" Width="250" VerticalAlignment="Center">
+                    <TextBlock Text="{Binding Path=Description}"></TextBlock>
+                    <TextBlock Visibility="{Binding Required, Converter={StaticResource VisibleIfTrueConverter}}" Text="*" Foreground="Red"/>
+                </TextBlock>
+                <TextBox DockPanel.Dock="Right" VerticalAlignment="Center" Padding="2" Margin="0,4,4,4" Text="{Binding Path=Value, UpdateSourceTrigger=PropertyChanged}"></TextBox>
+            </DockPanel>
+        </DataTemplate>
+
+        <DataTemplate x:Key="FilePathTemplate">
+            <DockPanel>
+                <Button Name="btnFilePathSelector" DockPanel.Dock="Right" Width="70" Margin="4" Click="btnFilePathSelector_Click">Browse</Button>
+                <TextBlock DockPanel.Dock="Left" Width="250" VerticalAlignment="Center">
+                    <TextBlock Text="{Binding Description}"></TextBlock>
+                    <TextBlock Visibility="{Binding Required, Converter={StaticResource VisibleIfTrueConverter}}" Text="*" Foreground="Red"/>
+                </TextBlock>
+                <TextBlock Name="txtFilePathSelector" DockPanel.Dock="Right" VerticalAlignment="Center" HorizontalAlignment="Right" Margin="3" ToolTip="{Binding RelativeSource={RelativeSource Self}, Path=Text}" Text="{Binding Value}"/>
+            </DockPanel>
+        </DataTemplate>
+
+        <DataTemplate x:Key="NumberTemplate">
+            <StackPanel>
+                <!-- Decimal number -->
+                <DockPanel>
+                    <DockPanel.Visibility>
+                        <MultiBinding Converter="{StaticResource EqualityVisibilityConverter}">
+                            <Binding Path="Style" />
+                            <Binding Source="{x:Static pluginapi:PluginOptionNumberStyle.Decimal}" Mode="OneWay" />
+                        </MultiBinding>
+                    </DockPanel.Visibility>
+
+                    <TextBlock DockPanel.Dock="Left" Width="250" VerticalAlignment="Center">
+                        <TextBlock Text="{Binding Description}"></TextBlock>
+                        <TextBlock Visibility="{Binding Required, Converter={StaticResource VisibleIfTrueConverter}}" Text="*" Foreground="Red"/>
+                    </TextBlock>
+                    <TextBox Name="txtDecimalString" DockPanel.Dock="Right" VerticalAlignment="Center" Padding="2" Margin="0,4,4,4" Text="{Binding Path=Value, UpdateSourceTrigger=PropertyChanged}"></TextBox>
+                </DockPanel>
+
+                <!-- Hex number -->
+                <DockPanel>
+                    <DockPanel.Visibility>
+                        <MultiBinding Converter="{StaticResource EqualityVisibilityConverter}">
+                            <Binding Path="Style" />
+                            <Binding Source="{x:Static pluginapi:PluginOptionNumberStyle.Hex}" Mode="OneWay" />
+                        </MultiBinding>
+                    </DockPanel.Visibility>
+
+                    <TextBlock DockPanel.Dock="Left" Width="250" VerticalAlignment="Center">
+                        <TextBlock Text="{Binding Description}"></TextBlock>
+                        <TextBlock Visibility="{Binding Required, Converter={StaticResource VisibleIfTrueConverter}}" Text="*" Foreground="Red"/>
+                    </TextBlock>
+                    <DockPanel HorizontalAlignment="Stretch">
+                        <Label Margin="0,3,3,5">0x</Label>
+                        <TextBox Name="txtHexString" Padding="2" Margin="0,6,4,6" Text="{Binding Value, Converter={StaticResource HexStringValueConverter}, UpdateSourceTrigger=PropertyChanged}" PreviewTextInput="txtHexString_PreviewTextInput"/>
+                    </DockPanel>
+                </DockPanel>
+            </StackPanel>
+        </DataTemplate>
+
+        <DataTemplate x:Key="BooleanTemplate">
+            <DockPanel Margin="250,0,0,0">
+                <TextBlock DockPanel.Dock="Left" VerticalAlignment="Top" Margin="0,10,2,6"
+                            Visibility="{Binding Required, Converter={StaticResource VisibleIfTrueConverter}}" Text="*" Foreground="Red"/>
+                <CheckBox DockPanel.Dock="Right" VerticalAlignment="Center" Margin="0,10,2,6" IsChecked="{Binding Value}">
+                    <TextBlock VerticalAlignment="Center" TextWrapping="Wrap" Text="{Binding Description}" />
+                </CheckBox>
+            </DockPanel>
+        </DataTemplate>
+
+        <DataTemplate x:Key="ChoiceTemplate">
+            <StackPanel>
+                <!-- Drop-down box version -->
+                <DockPanel>
+                    <DockPanel.Visibility>
+                        <MultiBinding Converter="{StaticResource EqualityVisibilityConverter}">
+                            <Binding Path="Style" />
+                            <Binding Source="{x:Static pluginapi:PluginOptionChoiceStyle.Dropdown}" Mode="OneWay" />
+                        </MultiBinding>
+                    </DockPanel.Visibility>
+                    <TextBlock DockPanel.Dock="Left" Width="250" VerticalAlignment="Center">
+                        <TextBlock Text="{Binding Description}"></TextBlock>
+                        <TextBlock Visibility="{Binding Required, Converter={StaticResource VisibleIfTrueConverter}}" Text="*" Foreground="Red"/>
+                    </TextBlock>
+                    <ComboBox DockPanel.Dock="Right" Margin="4,8,4,8" ItemsSource="{Binding Choices}" DisplayMemberPath="Value" SelectedValuePath="Key" SelectedValue="{Binding Value}"></ComboBox>
+                </DockPanel>
+
+                <!-- Radio buttons version -->
+                <DockPanel>
+                    <DockPanel.Visibility>
+                        <MultiBinding Converter="{StaticResource EqualityVisibilityConverter}">
+                            <Binding Path="Style" />
+                            <Binding Source="{x:Static pluginapi:PluginOptionChoiceStyle.List}" Mode="OneWay" />
+                        </MultiBinding>
+                    </DockPanel.Visibility>
+                    <GroupBox Header="{Binding Description}" Margin="5" Padding="5">
+                        <ListBox ItemsSource="{Binding Choices}" SelectedItem="{Binding Value}" BorderBrush="Transparent">
+                            <ListBox.ItemTemplate>
+                                <DataTemplate>
+                                    <RadioButton GroupName="{Binding Header, RelativeSource={RelativeSource AncestorType=GroupBox}}"
+                                             Content="{Binding}"
+                                             IsChecked="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=ListBoxItem}}"
+                                             Focusable="False"
+                                             IsHitTestVisible="False"/>
+                                </DataTemplate>
+                            </ListBox.ItemTemplate>
+                        </ListBox>
+                    </GroupBox>
+                </DockPanel>
+            </StackPanel>
+        </DataTemplate>
+
+        <!-- Configure ListBox to display configuration controls nicely -->
+        <Style TargetType="{x:Type ListBoxItem}">
+            <Setter Property="Background" Value="Transparent"/>
+            
+            <!-- Force ListBox to width of window -->
+            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
+            
+            <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
+            <Setter Property="Padding" Value="2,0,0,0"/>
+            <Setter Property="Template">
+                <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type ListBoxItem}">
+                        <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
+                            <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
+                        </Border>
+                        <ControlTemplate.Triggers>
+                            <Trigger Property="IsEnabled" Value="false">
+                                <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
+                            </Trigger>
+                        </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                </Setter.Value>
+            </Setter>
+        </Style>
+    </Window.Resources>
+
+    <Grid Margin="10">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="50" />
+            <RowDefinition Height="*" />
+            <RowDefinition Height="50" />
+        </Grid.RowDefinitions>
+
+        <!-- Title -->
+        <Label Grid.Row="0" Foreground="{StaticResource WindowsBlue}" FontSize="20" HorizontalAlignment="Left" VerticalAlignment="Center"
+               Content="{Binding Plugin.Name}" ContentStringFormat="Configuration for {0}" Padding="8,0,0,0"/>
+
+        <!-- Options editor -->
+        <ListBox Grid.Row="1" Name="lstOptions" ItemsSource="{Binding Plugin.Options}" ScrollViewer.HorizontalScrollBarVisibility="Disabled" Padding="8" BorderBrush="Transparent">
+            <ListBox.ItemTemplateSelector>
+                <local:OptionTemplateSelector TextTemplate="{StaticResource TextTemplate}"
+                                              FilePathTemplate="{StaticResource FilePathTemplate}"
+                                              NumberTemplate="{StaticResource NumberTemplate}"
+                                              BooleanTemplate="{StaticResource BooleanTemplate}"
+                                              ChoiceTemplate="{StaticResource ChoiceTemplate}">
+                </local:OptionTemplateSelector>
+            </ListBox.ItemTemplateSelector>
+        </ListBox>
+        
+        <!-- Accept button -->
+        <StackPanel Grid.Row="2" VerticalAlignment="Bottom" Margin="10">
+            <Button Name="okButton" Click="okButton_Click" Style="{StaticResource LightBoxButton}" IsDefault="True" Width="150" FontSize="18">OK</Button>
+        </StackPanel>
+    </Grid>
+</Window>

Il2CppInspector.GUI/PluginConfigurationDialog.xaml.cs

@@ -0,0 +1,93 @@
+/*
+    Copyright 2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
+
+    All rights reserved.
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+using Microsoft.Win32;
+using Il2CppInspectorGUI;
+using System.Windows.Forms.Design;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+using System.Text.RegularExpressions;
+using System.Linq;
+using Il2CppInspector.PluginAPI.V100;
+using static Il2CppInspector.PluginManager;
+
+namespace Il2CppInspector.GUI
+{
+    // Class which selects the correct control to display for each plugin option
+    public class OptionTemplateSelector : DataTemplateSelector
+    {
+        public DataTemplate TextTemplate { get; set; }
+        public DataTemplate FilePathTemplate { get; set; }
+        public DataTemplate NumberTemplate { get; set; }
+        public DataTemplate BooleanTemplate { get; set; }
+        public DataTemplate ChoiceTemplate { get; set; }
+
+        // Use some fancy reflection to get the right template property
+        public override DataTemplate SelectTemplate(object item, DependencyObject container) {
+            var option = (IPluginOption) item;
+            return (DataTemplate) GetType().GetProperty(option.GetType().Name.Split("`")[0]["PluginOption".Length..] + "Template").GetValue(this);
+        }
+    }
+
+    /// <summary>
+    /// Interaction logic for PluginConfigurationDialog.xaml
+    /// </summary>
+    public partial class PluginConfigurationDialog : Window
+    {
+        // Item to configure
+        public IPlugin Plugin { get; }
+
+        public PluginConfigurationDialog(IPlugin plugin) {
+            InitializeComponent();
+            DataContext = this;
+            Plugin = plugin;
+        }
+
+        private void okButton_Click(object sender, RoutedEventArgs e) {
+            // Closes dialog box automatically
+            DialogResult = true;
+        }
+
+        // Select a file path
+        private void btnFilePathSelector_Click(object sender, RoutedEventArgs e) {
+
+            var option = (PluginOptionFilePath) ((Button) sender).DataContext;
+
+            var openFileDialog = new OpenFileDialog {
+                Title = option.Description,
+                Filter = "All files (*.*)|*.*",
+                FileName = option.Value,
+                CheckFileExists = true
+            };
+
+            if (openFileDialog.ShowDialog() == true) {
+                option.Value = openFileDialog.FileName;
+
+                // This spaghetti saves us from implementing INotifyPropertyChanged on Plugin.Options
+                // (we don't want to expose WPF stuff in our SDK)
+                // Will break if we change the format of the FilePathDataTemplate too much
+                var tb = ((DockPanel) ((Button) sender).Parent).Children.OfType<TextBlock>().First(n => n.Name == "txtFilePathSelector");
+                tb.Text = option.Value;
+            }
+        }
+
+        // Only allow hex characters in hex string
+        private void txtHexString_PreviewTextInput(object sender, TextCompositionEventArgs e) {
+            e.Handled = !Regex.IsMatch(e.Text, @"[A-Fa-f0-9]");
+        }
+    }
+}

Il2CppInspector.GUI/PluginManagerDialog.xaml

@@ -0,0 +1,139 @@
+<Window x:Class="Il2CppInspector.GUI.PluginManagerDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Il2CppInspector.GUI"
+        mc:Ignorable="d"
+        Title="Plugin Manager" Height="450" Width="800"
+        WindowStartupLocation="CenterOwner">
+    <Window.Resources>
+        <!-- Configure ListBox to display plugins nicely -->
+        <Style x:Key="ConfigItemStyle" TargetType="{x:Type ListBoxItem}">
+
+            <!-- Alternating background colours -->
+            <Style.Triggers>
+                <Trigger Property="ItemsControl.AlternationIndex"  Value="0">
+                    <Setter Property="Background" Value="AliceBlue" />
+                </Trigger>
+                <Trigger Property="ItemsControl.AlternationIndex"  Value="1">
+                    <Setter Property="Background" Value="AliceBlue" />
+                </Trigger>
+                <Trigger Property="IsEnabled" Value="false">
+                    <Setter Property="Background" Value="LightGray"/>
+                </Trigger>
+            </Style.Triggers>
+
+            <!-- Force ListBox to width of window -->
+            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
+
+            <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
+            <Setter Property="Padding" Value="2,0,0,0"/>
+            <Setter Property="Template">
+                <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type ListBoxItem}">
+                        <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
+                            <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
+                        </Border>
+                        <ControlTemplate.Triggers>
+                            <!-- Remove highlight on hover and selection; set border on selection instead -->
+                            <Trigger Property="IsSelected" Value="True">
+                                <Setter Property="BorderBrush" Value="{StaticResource MicrosoftBlue}" />
+                            </Trigger>
+                        </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                </Setter.Value>
+            </Setter>
+        </Style>
+
+    </Window.Resources>
+
+    <Grid Margin="10">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="50" />
+            <RowDefinition Height="*" />
+            <RowDefinition Height="70" />
+        </Grid.RowDefinitions>
+
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="*" />
+            <ColumnDefinition Width="60" />
+        </Grid.ColumnDefinitions>
+
+        <!-- Title -->
+        <Label Grid.Row="0" Foreground="{StaticResource WindowsBlue}" FontSize="20" HorizontalAlignment="Left" VerticalAlignment="Center"
+               Content="Plugin Manager" Padding="8,0,0,0"/>
+
+        <!-- Plugins editor -->
+        <ListBox Grid.Row="1" Name="lstPlugins" ItemsSource="{Binding ManagedPlugins}" ScrollViewer.HorizontalScrollBarVisibility="Disabled" BorderBrush="Transparent" AlternationCount="2" SelectionChanged="lstPlugins_SelectionChanged">
+            <ListBox.ItemTemplate>
+                <DataTemplate>
+                    <Grid>
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="Auto" />
+                            <ColumnDefinition Width="*" />
+                            <ColumnDefinition Width="130" />
+                        </Grid.ColumnDefinitions>
+                        <Grid.RowDefinitions>
+                            <RowDefinition Height="Auto" MinHeight="60" />
+                        </Grid.RowDefinitions>
+
+                        <CheckBox Grid.Column="0" Margin="6" VerticalAlignment="Center" IsChecked="{Binding Enabled}">
+                            <CheckBox.LayoutTransform>
+                                <ScaleTransform ScaleX="1.5" ScaleY="1.5" />
+                            </CheckBox.LayoutTransform>
+                        </CheckBox>
+                        <TextBlock Grid.Column="1" Margin="0,10,0,10" VerticalAlignment="Center">
+                            <TextBlock Text="{Binding Plugin.Name}" FontSize="14" Foreground="{StaticResource WindowsBlue}" />
+                            <TextBlock Text="{Binding Plugin.Author, StringFormat={}by {0}}" />
+                            <TextBlock Text="{Binding Plugin.Version, StringFormat={}[{0}]}" />
+                            <LineBreak/>
+                            <TextBlock Text="{Binding Plugin.Description}" TextWrapping="Wrap" />
+                        </TextBlock>
+                        <Button Grid.Column="2" Margin="15" Padding="5" VerticalAlignment="Center" Content="Configure..." Click="btnConfig_Click">
+                            <Button.Style>
+                                <Style TargetType="{x:Type Button}">
+                                    <Style.Triggers>
+                                        <DataTrigger Binding="{Binding Plugin.Options}" Value="{x:Null}">
+                                            <Setter Property="Visibility" Value="Hidden"/>
+                                        </DataTrigger>
+                                    </Style.Triggers>
+                                </Style>
+                            </Button.Style>
+                        </Button>
+                    </Grid>
+                </DataTemplate>
+            </ListBox.ItemTemplate>
+
+            <ListBox.ItemContainerStyle>
+                <Style BasedOn="{StaticResource ConfigItemStyle}" TargetType="{x:Type ListBoxItem}">
+                    <Style.Triggers>
+                        <DataTrigger Binding="{Binding Path=Available}" Value="False">
+                            <Setter Property="ListBoxItem.IsEnabled" Value="False"/>
+                        </DataTrigger>
+                    </Style.Triggers>
+                </Style>
+            </ListBox.ItemContainerStyle>
+        </ListBox>
+
+        <!-- Reordering controls -->
+        <StackPanel Grid.Row="1" Grid.Column="1" Margin="10,0,0,0">
+            <Button Name="btnTop" FontFamily="Segoe MDL2 Assets" Style="{StaticResource LightBoxButton}" FontSize="14" Padding="5,8,5,8" Margin="2" Content="&#xE110;&#xE110;" Click="btnTop_Click"/>
+            <Button Name="btnUp" FontFamily="Segoe MDL2 Assets" Style="{StaticResource LightBoxButton}" FontSize="20" Padding="5" Margin="2" Content="&#xE110;" Click="btnUp_Click"/>
+            <Button Name="btnDown" FontFamily="Segoe MDL2 Assets" Style="{StaticResource LightBoxButton}" FontSize="20" Padding="5" Margin="2" Content="&#xE1FD;" Click="btnDown_Click"/>
+            <Button Name="btnBottom" FontFamily="Segoe MDL2 Assets" Style="{StaticResource LightBoxButton}" FontSize="14" Padding="5,8,5,8" Margin="2" Content="&#xE1FD;&#xE1FD;" Click="btnBottom_Click"/>
+        </StackPanel>
+        
+        <!-- Bottom buttons -->
+        <DockPanel Grid.Row="2" Grid.ColumnSpan="2" VerticalAlignment="Bottom" Margin="10">
+            <!-- Accept button -->
+            <Button DockPanel.Dock="Right" Name="okButton" Click="okButton_Click" Style="{StaticResource LightBoxButton}" IsDefault="True" Width="150" FontSize="18" Padding="5">OK</Button>
+
+            <!-- Refresh button -->
+            <Button DockPanel.Dock="Left" Name="refreshButton" Click="refreshButton_Click" Style="{StaticResource LightBoxButton}" HorizontalAlignment="Left" Width="150" FontSize="18" Padding="5">Refresh</Button>
+
+            <!-- Get Plugins button -->
+            <Button DockPanel.Dock="Left" Name="getPluginsButton" Click="getPluginsButton_Click" Style="{StaticResource LightBoxButton}" HorizontalAlignment="Left" Margin="10,0,0,0" Width="150" FontSize="18" Padding="5">Get Plugins...</Button>
+        </DockPanel>
+    </Grid>
+</Window>

Il2CppInspector.GUI/PluginManagerDialog.xaml.cs

@@ -0,0 +1,112 @@
+/*
+    Copyright 2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
+
+    All rights reserved.
+*/
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace Il2CppInspector.GUI
+{
+    /// <summary>
+    /// Interaction logic for PluginManagerDialog.xaml
+    /// </summary>
+    public partial class PluginManagerDialog : Window
+    {
+        public PluginManagerDialog() {
+            InitializeComponent();
+            DataContext = PluginManager.AsInstance;
+
+            // Set default re-order button state
+            lstPlugins_SelectionChanged(null, null);
+        }
+
+        private void okButton_Click(object sender, RoutedEventArgs e) {
+            DialogResult = true;
+        }
+
+        // Reload list of plugins and reset settings
+        private void refreshButton_Click(object sender, RoutedEventArgs e) {
+            PluginManager.Reload();
+        }
+
+        // Open configuration for specific plugin
+        private void btnConfig_Click(object sender, RoutedEventArgs e) {
+            var plugin = (ManagedPlugin) ((Button) sender).DataContext;
+
+            var configDlg = new PluginConfigurationDialog(plugin.Plugin);
+            configDlg.Owner = this;
+            configDlg.ShowDialog();
+        }
+
+        // Re-ordering controls
+        private void lstPlugins_SelectionChanged(object sender, SelectionChangedEventArgs e) {
+            var index = lstPlugins.SelectedIndex;
+
+            btnTop.IsEnabled = btnUp.IsEnabled = index > 0;
+            btnBottom.IsEnabled = btnDown.IsEnabled = index > -1 && index < lstPlugins.Items.Count - 1;
+        }
+
+        private void btnUp_Click(object sender, RoutedEventArgs e) {
+            var plugins = PluginManager.AsInstance.ManagedPlugins;
+
+            var index = lstPlugins.SelectedIndex;
+            var item = (ManagedPlugin) lstPlugins.SelectedItem;
+
+            plugins.Remove(item);
+            plugins.Insert(index - 1, item);
+            lstPlugins.SelectedIndex = index - 1;
+        }
+
+        private void btnDown_Click(object sender, RoutedEventArgs e) {
+            var plugins = PluginManager.AsInstance.ManagedPlugins;
+
+            var index = lstPlugins.SelectedIndex;
+            var item = (ManagedPlugin) lstPlugins.SelectedItem;
+
+            plugins.Remove(item);
+            plugins.Insert(index + 1, item);
+            lstPlugins.SelectedIndex = index + 1;
+        }
+
+        private void btnTop_Click(object sender, RoutedEventArgs e) {
+            var plugins = PluginManager.AsInstance.ManagedPlugins;
+
+            var index = lstPlugins.SelectedIndex;
+            var item = (ManagedPlugin) lstPlugins.SelectedItem;
+
+            plugins.Remove(item);
+            plugins.Insert(0, item);
+            lstPlugins.SelectedIndex = 0;
+        }
+
+        private void btnBottom_Click(object sender, RoutedEventArgs e) {
+            var plugins = PluginManager.AsInstance.ManagedPlugins;
+
+            var index = lstPlugins.SelectedIndex;
+            var item = (ManagedPlugin) lstPlugins.SelectedItem;
+
+            plugins.Remove(item);
+            plugins.Add(item);
+            lstPlugins.SelectedIndex = plugins.Count - 1;
+        }
+
+        /// Get plugins button
+        private void getPluginsButton_Click(object sender, RoutedEventArgs e) {
+            Process.Start(new ProcessStartInfo { FileName = @"https://github.com/djkaty/Il2CppInspectorPlugins", UseShellExecute = true });
+        }
+
+    }
+}