From 0e6d0736247c58ef0ea64f0ba9335fad987249b5 Mon Sep 17 00:00:00 2001
From: Paul Bobik <paul.bobik@gmail.com>
Date: Fri, 9 Feb 2024 21:53:48 +0100
Subject: [PATCH] Applied WPF Design Concepts and added some C# Syntax +
 CommunityToolkit.Mvvm Features applied

---
 Switchy/Switchy/App.xaml                     |  14 +-
 Switchy/Switchy/App.xaml.cs                  |  18 +-
 Switchy/Switchy/MainWindow.xaml              |  79 --------
 Switchy/Switchy/MainWindow.xaml.cs           | 136 -------------
 Switchy/Switchy/Model/ProcessListViewItem.cs |  66 +++----
 Switchy/Switchy/Switchy.csproj               |   6 +
 Switchy/Switchy/Utils/ProcessManager.cs      | 109 -----------
 Switchy/Switchy/Utils/TypeAssistant.cs       |  39 ++--
 Switchy/Switchy/Utils/User32Helper.cs        |  47 ++---
 Switchy/Switchy/Utils/WindowHelper.cs        | 196 ++++++++++---------
 Switchy/Switchy/View/MainWindow.xaml         | 115 +++++++++++
 Switchy/Switchy/View/MainWindow.xaml.cs      |  32 +++
 Switchy/Switchy/ViewModel/ProcessManager.cs  | 145 ++++++++++++++
 13 files changed, 474 insertions(+), 528 deletions(-)
 delete mode 100644 Switchy/Switchy/MainWindow.xaml
 delete mode 100644 Switchy/Switchy/MainWindow.xaml.cs
 delete mode 100644 Switchy/Switchy/Utils/ProcessManager.cs
 create mode 100644 Switchy/Switchy/View/MainWindow.xaml
 create mode 100644 Switchy/Switchy/View/MainWindow.xaml.cs
 create mode 100644 Switchy/Switchy/ViewModel/ProcessManager.cs

diff --git a/Switchy/Switchy/App.xaml b/Switchy/Switchy/App.xaml
index ea75629..c90310d 100644
--- a/Switchy/Switchy/App.xaml
+++ b/Switchy/Switchy/App.xaml
@@ -1,17 +1,5 @@
 <Application x:Class="Switchy.App"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             xmlns:local="clr-namespace:Switchy"
-             StartupUri="MainWindow.xaml">
-    <Application.Resources>
-        <Style TargetType="StackPanel" x:Key="GlobalStackPanelStyle">
-            <Style.Resources>
-                <Style TargetType="Button">
-                    <Setter Property="Margin" Value="0,0,0,20" />
-                    <Setter Property="Height" Value="30" />
-                    <Setter Property="Width" Value="35" />
-                </Style>
-            </Style.Resources>
-        </Style>
-    </Application.Resources>
+             StartupUri="View/MainWindow.xaml">
 </Application>
diff --git a/Switchy/Switchy/App.xaml.cs b/Switchy/Switchy/App.xaml.cs
index 79eec2f..36a534e 100644
--- a/Switchy/Switchy/App.xaml.cs
+++ b/Switchy/Switchy/App.xaml.cs
@@ -1,14 +1,10 @@
-using System.Configuration;
-using System.Data;
-using System.Windows;
+using System.Windows;
 
-namespace Switchy
-{
-    /// <summary>
-    /// Interaction logic for App.xaml
-    /// </summary>
-    public partial class App : Application
-    {
-    }
+namespace Switchy;
 
+/// <summary>
+/// Interaction logic for App.xaml
+/// </summary>
+public partial class App : Application
+{
 }
diff --git a/Switchy/Switchy/MainWindow.xaml b/Switchy/Switchy/MainWindow.xaml
deleted file mode 100644
index d1fa54b..0000000
--- a/Switchy/Switchy/MainWindow.xaml
+++ /dev/null
@@ -1,79 +0,0 @@
-<Window x:Class="Switchy.MainWindow"
-        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:muxc="using:Microsoft.UI.Xaml.Controls"
-        xmlns:local="clr-namespace:Switchy"     
-        xmlns:System="clr-namespace:System;assembly=mscorlib"
-        xmlns:TestAlias="clr-namespace:Switchy.Utils"
-        mc:Ignorable="d"
-        Title="Switchy" Height="500" Width="1000">
-    <Grid>
-        <Grid.ColumnDefinitions>
-            <ColumnDefinition Width="4*"/>
-            <ColumnDefinition Width="35"/>
-            <ColumnDefinition Width="4*"/>
-        </Grid.ColumnDefinitions>
-        <Grid Grid.Column="0">
-            <Grid.RowDefinitions>
-                <RowDefinition Height="40" />
-                <RowDefinition Height="*" />
-                <RowDefinition Height="50" />
-            </Grid.RowDefinitions>
-            <Grid>
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="100" />
-                    <ColumnDefinition Width="*" />
-                    <ColumnDefinition Width="100" />
-                </Grid.ColumnDefinitions>
-                <Label Content="Filter by Name:" Height="40" Padding="10" HorizontalAlignment="Left" Grid.Row="0"/>
-                <TextBox TextWrapping="Wrap" Text="" Width="120" Margin="0,10" HorizontalAlignment="Left" Grid.Row="0" TextChanged="FilterAvailableProcesses" Grid.Column="1"/>
-                <Button Name="RefreshProcessesButton" Content="Refresh" Grid.Column="2" Height="20" Margin="10,10" Click="RefreshProcessesButton_Click"/>
-            </Grid>
-            <ListView Name="AvailableProcessListView" Margin="10,0,10,10" Grid.Row="1" MouseDoubleClick="AvailableProcessListView_MouseDoubleClick">
-                <ListView.View>
-                    <GridView AllowsColumnReorder="true" ColumnHeaderToolTip="Processes">
-                        <GridViewColumn DisplayMemberBinding="{Binding Process.ProcessName}" Header="Name" Width="200"/>
-                        <GridViewColumn DisplayMemberBinding="{Binding Process.Id}" Header="Id" Width="60"/>
-                        <GridViewColumn DisplayMemberBinding="{Binding HasExited}" Header="Exited" Width="70"/>
-                    </GridView>
-                </ListView.View>
-            </ListView>
-            <ComboBox Name="AlgoVersionSelector" SelectedItem="NORMAL" Height="25" Margin="10,0,0,0" Grid.Row="3" Width="150" HorizontalAlignment="Left" />
-        </Grid>
-        <StackPanel Grid.Column="1" Style="{StaticResource GlobalStackPanelStyle}" VerticalAlignment="Center">
-            <Button Content=">>" Name="SelectItemsButton" Click="SelectItemsButton_Click"/>
-            <Button Content="Up" Name="MoveSelectedItemsUpButton" Click="MoveSelectedItemsUpButton_Click" />
-            <Button Content="Down" Name="MoveSelectedItemsDownButton" Click="MoveSelectedItemsDownButton_Click" />
-            <Button Content="&lt;&lt;" Click="RemoveItemsFromSelection_Click" />
-        </StackPanel>
-        <Grid Grid.Column="2">
-            <Grid.RowDefinitions>
-                <RowDefinition Height="40" />
-                <RowDefinition Height="*" />
-                <RowDefinition Height="50" />
-            </Grid.RowDefinitions>
-            <Label Content="Switching windows every x seconds:" Height="40" Padding="10" HorizontalAlignment="Left" Grid.Row="0"/>
-            <TextBox Name="TimerInSeconds" TextWrapping="Wrap" Text="60" Width="120" Margin="10" HorizontalAlignment="Right" Grid.Row="0" PreviewTextInput="NumericOnly"/>
-            <ListView Name="SelectedProcessListView" Margin="10,0,10,10" Grid.Row="1" MouseDoubleClick="SelectedProcessListView_MouseDoubleClick">
-                <ListView.View>
-                    <GridView>
-                        <GridViewColumn DisplayMemberBinding="{Binding Process.ProcessName}" Header="Name" Width="200"/>
-                        <GridViewColumn DisplayMemberBinding="{Binding Process.Id}" Header="Id" Width="60"/>
-                        <GridViewColumn DisplayMemberBinding="{Binding HasExited}" Header="Exited" Width="70"/>
-                    </GridView>
-                </ListView.View>
-            </ListView>
-            <Grid Grid.Row="2" Margin="10">
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="50"/>
-                    <ColumnDefinition Width="*"/>
-                    <ColumnDefinition Width="50"/>
-                </Grid.ColumnDefinitions>
-                <Button Name="StartButton" Content="Start" Grid.Column="0" Click="StartButton_Click"/>
-                <Button Name="StopButton" Content="Stop" Grid.Column="2" Click="StopButton_Click"/>
-            </Grid>
-        </Grid>
-    </Grid>
-</Window>
diff --git a/Switchy/Switchy/MainWindow.xaml.cs b/Switchy/Switchy/MainWindow.xaml.cs
deleted file mode 100644
index 4370252..0000000
--- a/Switchy/Switchy/MainWindow.xaml.cs
+++ /dev/null
@@ -1,136 +0,0 @@
-using Switchy.Model;
-using Switchy.Utils;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Threading;
-using System.Text.RegularExpressions;
-namespace Switchy
-{
-    /// <summary>
-    /// Interaction logic for MainWindow.xaml
-    /// </summary>
-    public partial class MainWindow : Window
-    {
-        private WindowHelper? _windowHelper;
-        private DispatcherTimer? _textChangedTimer;
-        [GeneratedRegex("[^0-9]")] private static partial Regex NumericRegex();
-
-        public ProcessManager ProcessManager { get; set; }
-
-        public MainWindow()
-        {
-            InitializeComponent();
-            ProcessManager = new ProcessManager();
-            AvailableProcessListView.ItemsSource = ProcessManager.FilteredAvailableProcesses;
-            AvailableProcessListView.SelectionMode = SelectionMode.Single;
-            AvailableProcessListView.Items.SortDescriptions.Add(new System.ComponentModel.SortDescription("Process.ProcessName", System.ComponentModel.ListSortDirection.Ascending));
-            SelectedProcessListView.ItemsSource = ProcessManager.SelectedProcesses;
-            SelectedProcessListView.SelectionMode = SelectionMode.Single;
-            AlgoVersionSelector.ItemsSource = Enum.GetValues(typeof(WindowSwitcherType)).Cast<WindowSwitcherType>();
-            AlgoVersionSelector.SelectedItem = WindowSwitcherType.Normal;
-        }
-
-        private void FilterAvailableProcesses(object? sender, TextChangedEventArgs e)
-        {
-
-            if (_textChangedTimer == null)
-            {
-                _textChangedTimer = new DispatcherTimer
-                {
-                    Interval = TimeSpan.FromMilliseconds(100)
-                };
-                _textChangedTimer.Tick += new EventHandler(HandleTypingTimerTimeout);
-            }
-
-            _textChangedTimer.Stop();
-            _textChangedTimer.Tag = (sender as TextBox)?.Text;
-            _textChangedTimer.Start();
-        }
-        private void HandleTypingTimerTimeout(object? sender, EventArgs e)
-        {
-            if (sender is not DispatcherTimer timer)
-                return;
-
-            ProcessManager.FilterAvailableProcessList(timer.Tag as string);
-            timer.Stop();
-        }
-
-        private void SelectItemsButton_Click(object? sender, RoutedEventArgs? e)
-        {
-            ProcessManager.AddSelectedItems(AvailableProcessListView.SelectedItems.Cast<ProcessListViewItem>());
-        }
-
-        private void AvailableProcessListView_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
-        {
-            SelectItemsButton_Click(sender, e);
-        }
-        private void SelectedProcessListView_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
-        {
-            RemoveItemsFromSelection_Click(sender, e);
-        }
-        private void RemoveItemsFromSelection_Click(object? sender, RoutedEventArgs? e)
-        {
-            ProcessManager.RemoveSelectedItems(SelectedProcessListView.SelectedItems.Cast<ProcessListViewItem>());
-        }
-
-        private void RefreshProcessesButton_Click(object sender, RoutedEventArgs e)
-        {
-            ProcessManager.UpdateAvailableProcessList();
-        }
-
-        private void StartButton_Click(object sender, RoutedEventArgs e)
-        {
-            if (_windowHelper != null)
-            {
-                MessageBox.Show("Window switching is already in progress! Please stop before starting again.");
-                return;
-            }
-
-            if (!double.TryParse(TimerInSeconds.Text, out double parseResult))
-            {
-                MessageBox.Show("You need to enter a value for the window switching time in seconds!");
-                return;
-            }
-
-            _windowHelper = new WindowHelper(ProcessManager.SelectedProcesses, parseResult, (WindowSwitcherType)Enum.Parse(typeof(WindowSwitcherType), AlgoVersionSelector.SelectedItem?.ToString() ?? nameof(WindowSwitcherType.Normal), true));
-            if (_windowHelper.Start() == -1)
-                StopButton_Click(sender, e);
-        }
-
-        private void StopButton_Click(object sender, RoutedEventArgs e)
-        {
-            _windowHelper?.Dispose();
-            _windowHelper = null;
-            MessageBox.Show("Switching windows stopped.");
-        }
-
-        private void NumericOnly(System.Object sender, System.Windows.Input.TextCompositionEventArgs e)
-        {
-            e.Handled = IsTextNumeric(e.Text);
-        }
-        private static bool IsTextNumeric(string str)
-        {
-            System.Text.RegularExpressions.Regex reg = NumericRegex();
-            return reg.IsMatch(str);
-        }
-
-        private void MoveSelectedItemsUpButton_Click(object sender, RoutedEventArgs e)
-        {
-            var selectedItems = SelectedProcessListView.SelectedItems;
-            foreach (ProcessListViewItem item in selectedItems.Cast<ProcessListViewItem>().ToArray())
-            {
-                ProcessManager.TryMoveItemUp(item);
-                SelectedProcessListView.SelectedItem = item;
-            }
-        }
-
-        private void MoveSelectedItemsDownButton_Click(object sender, RoutedEventArgs e)
-        {
-            foreach (ProcessListViewItem item in SelectedProcessListView.SelectedItems.Cast<ProcessListViewItem>().ToArray())
-            {
-                ProcessManager.TryMoveItemDown(item);
-                SelectedProcessListView.SelectedItem = item;
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/Switchy/Switchy/Model/ProcessListViewItem.cs b/Switchy/Switchy/Model/ProcessListViewItem.cs
index c135d39..e92796c 100644
--- a/Switchy/Switchy/Model/ProcessListViewItem.cs
+++ b/Switchy/Switchy/Model/ProcessListViewItem.cs
@@ -1,52 +1,42 @@
-using System.ComponentModel;
+using CommunityToolkit.Mvvm.ComponentModel;
+using System.ComponentModel;
 using System.Diagnostics;
-using System.Runtime.CompilerServices;
 
-namespace Switchy.Model
+namespace Switchy.Model;
+
+public partial class ProcessListViewItem(Process p) : ObservableObject
 {
-    public class ProcessListViewItem : INotifyPropertyChanged
+    private Process _process = p;
+    [ObservableProperty]
+    private bool _isExited;
+    public Process Process
     {
-        public Process Process { get; }
-        public bool HasExited { get; internal set; }
-        public event PropertyChangedEventHandler? PropertyChanged;
-
-        public ProcessListViewItem(Process p)
+        get
         {
-            Process = p;
+            return _process;
+        }
+        private set
+        {
+            _process = value;
+
             try //Needed to prevent application crash when executing switchy without debug mode or admin rights; Effectively disables process exit listview binding however.
             {
-                p.EnableRaisingEvents = true;
-                p.Exited += P_Exited;
+                _process.EnableRaisingEvents = true;
+                _process.Exited += P_Exited;
             }
-            catch (Exception) { }
-        }
-
-        private void P_Exited(object? sender, EventArgs e)
-        {
-            this.HasExited = true;
-            NotifyPropertyChanged(nameof(Process.HasExited));
+            catch { }
         }
+    }
 
-        public override string ToString()
-        {
-            return Process?.ProcessName ?? "No Process";
-        }
+    private void P_Exited(object? sender, EventArgs e)
+        => IsExited = true;
 
-        public override bool Equals(object? obj)
-        {
-            if (obj is ProcessListViewItem it)
-                return Process.Id.Equals(it.Process.Id);
+    public override string ToString()
+        => Process?.ProcessName ?? "No Process";
 
-            return false;
-        }
-        private void NotifyPropertyChanged([CallerMemberName] String propertyName = "")
-        {
-            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
-        }
+    public override bool Equals(object? obj)
+        => obj is ProcessListViewItem it && Process.Id.Equals(it.Process.Id);
 
-        public override int GetHashCode()
-        {
-            return HashCode.Combine(Process.Id);
-        }
-    }
+    public override int GetHashCode()
+        => HashCode.Combine(Process.Id);
 }
diff --git a/Switchy/Switchy/Switchy.csproj b/Switchy/Switchy/Switchy.csproj
index e3e33e3..dba8c46 100644
--- a/Switchy/Switchy/Switchy.csproj
+++ b/Switchy/Switchy/Switchy.csproj
@@ -6,6 +6,12 @@
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <UseWPF>true</UseWPF>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
+    <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.77" />
+  </ItemGroup>
+
 </Project>
diff --git a/Switchy/Switchy/Utils/ProcessManager.cs b/Switchy/Switchy/Utils/ProcessManager.cs
deleted file mode 100644
index 83b03ff..0000000
--- a/Switchy/Switchy/Utils/ProcessManager.cs
+++ /dev/null
@@ -1,109 +0,0 @@
-using Switchy.Model;
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.ComponentModel;
-using System.Diagnostics;
-using System.Linq;
-using System.Runtime.CompilerServices;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows;
-
-namespace Switchy.Utils
-{
-    public class ProcessManager
-    {
-        private string? _lastFilterText;
-
-        public ObservableCollection<ProcessListViewItem> AvailableProcesses { get; } = [];
-        public ObservableCollection<ProcessListViewItem> FilteredAvailableProcesses { get; } = [];
-        public ObservableCollection<ProcessListViewItem> SelectedProcesses { get; } = [];
-        public ProcessManager()
-        {
-            UpdateAvailableProcessList();
-            FilteredAvailableProcesses = new ObservableCollection<ProcessListViewItem>(AvailableProcesses);
-        }
-
-        public void UpdateAvailableProcessList()
-        {
-            AvailableProcesses.Clear();
-            Process.GetProcesses()
-                .Where(p => p.MainWindowHandle != 0)
-                .Where(x => !SelectedProcesses.Any(y => y.Process.Id == x.Id))
-                .Select(c => new ProcessListViewItem(c)).ToList().ForEach(x => AvailableProcesses.Add(x));
-
-            FilterAvailableProcessList(_lastFilterText);
-        }
-
-        internal void AddSelectedItems(IEnumerable<ProcessListViewItem> selectedItems)
-        {
-            if (selectedItems.Any(x => x.HasExited))
-            {
-                MessageBox.Show("At least one of the selected processes has already exited! Please refresh the list and try again!");
-                return;
-            }
-
-            foreach (var item in selectedItems.ToArray())
-            {
-                if (SelectedProcesses.IndexOf(item) == -1)
-                {
-                    SelectedProcesses.Add(item);
-                    AvailableProcesses.Remove(item);
-                }
-            }
-            FilterAvailableProcessList(_lastFilterText);
-        }
-
-        internal void FilterAvailableProcessList(string? searchText)
-        {
-            _lastFilterText = searchText;
-            var tempFiltered = AvailableProcesses.Where(i => string.IsNullOrEmpty(searchText) || i.Process.ProcessName.Contains(searchText, StringComparison.CurrentCultureIgnoreCase)).ToList();
-
-            for (int i = FilteredAvailableProcesses.Count - 1; i >= 0; i--)
-            {
-                var item = FilteredAvailableProcesses[i];
-                if (!tempFiltered.Contains(item))
-                {
-                    FilteredAvailableProcesses.Remove(item);
-                }
-            }
-
-            foreach (var item in tempFiltered)
-            {
-                if (!FilteredAvailableProcesses.Contains(item))
-                {
-                    FilteredAvailableProcesses.Add(item);
-                }
-            }
-        }
-
-        internal void RemoveSelectedItems(IEnumerable<ProcessListViewItem> selectedItemsToRemove)
-        {
-            foreach (var item in selectedItemsToRemove.ToArray())
-            {
-                SelectedProcesses.Remove(item);
-                AvailableProcesses.Add(item);
-            }
-
-            FilterAvailableProcessList(_lastFilterText);
-        }
-
-        internal void TryMoveItemUp(ProcessListViewItem item)
-        {
-            var curIndex = SelectedProcesses.IndexOf(item);
-            if (curIndex == 0) return;
-            SelectedProcesses.Remove(item);
-            SelectedProcesses.Insert(curIndex - 1, item);
-        }
-
-        internal void TryMoveItemDown(ProcessListViewItem item)
-        {
-            var curIndex = SelectedProcesses.IndexOf(item);
-            if (curIndex == SelectedProcesses.Count - 1) return;
-            SelectedProcesses.Remove(item);
-            SelectedProcesses.Insert(curIndex + 1, item);
-        }
-    }
-}
diff --git a/Switchy/Switchy/Utils/TypeAssistant.cs b/Switchy/Switchy/Utils/TypeAssistant.cs
index 2fa5de7..40a9fd6 100644
--- a/Switchy/Switchy/Utils/TypeAssistant.cs
+++ b/Switchy/Switchy/Utils/TypeAssistant.cs
@@ -1,29 +1,22 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace Switchy.Utils;
 
-namespace Switchy.Utils
+//Taken from https://stackoverflow.com/questions/33776387/dont-raise-textchanged-while-continuous-typing
+public class TypeAssistant
 {
-    //Taken from https://stackoverflow.com/questions/33776387/dont-raise-textchanged-while-continuous-typing
-    public class TypeAssistant
-    {
-        public event EventHandler Idled = delegate { };
-        public int WaitingMilliSeconds { get; set; }
-        private System.Threading.Timer _waitingTimer;
+    public event EventHandler Idled = delegate { };
+    public int WaitingMilliSeconds { get; set; }
+    private readonly Timer _waitingTimer;
 
-        public TypeAssistant(int waitingMilliSeconds = 100)
-        {
-            WaitingMilliSeconds = waitingMilliSeconds;
-            _waitingTimer = new System.Threading.Timer(p =>
-            {
-                Idled(this, EventArgs.Empty);
-            });
-        }
-        public void TextChanged()
+    public TypeAssistant(int waitingMilliSeconds = 100)
+    {
+        WaitingMilliSeconds = waitingMilliSeconds;
+        _waitingTimer = new Timer(p =>
         {
-            _waitingTimer.Change(WaitingMilliSeconds, Timeout.Infinite);
-        }
+            Idled(this, EventArgs.Empty);
+        });
+    }
+    public void TextChanged()
+    {
+        _waitingTimer.Change(WaitingMilliSeconds, Timeout.Infinite);
     }
 }
diff --git a/Switchy/Switchy/Utils/User32Helper.cs b/Switchy/Switchy/Utils/User32Helper.cs
index b5e5022..802c65b 100644
--- a/Switchy/Switchy/Utils/User32Helper.cs
+++ b/Switchy/Switchy/Utils/User32Helper.cs
@@ -1,31 +1,34 @@
 using System.Runtime.InteropServices;
 
-namespace Switchy.Utils
+namespace Switchy.Utils;
+
+internal static partial class User32Helper
 {
-    public static class User32Helper
-    {
-        public const int SW_RESTORE = 9;
-        [DllImport("User32.dll")]
-        public static extern bool IsIconic(nint handle);
+    public const int SW_RESTORE = 9;
+    [LibraryImport("User32.dll")]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool IsIconic(nint handle);
 
-        [DllImport("User32.dll")]
-        public static extern bool SetForegroundWindow(nint handle);
-        [DllImport("User32.dll")]
-        public static extern bool ShowWindow(nint handle, int nCmdShow);
+    [LibraryImport("User32.dll")]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool SetForegroundWindow(nint handle);
+    [LibraryImport("User32.dll")]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool ShowWindow(nint handle, int nCmdShow);
 
-        [DllImport("user32.dll")]
-        public static extern IntPtr GetForegroundWindow();
+    [LibraryImport("user32.dll")]
+    public static partial IntPtr GetForegroundWindow();
 
-        [DllImport("user32.dll", SetLastError = true)]
-        public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
-        [DllImport("kernel32.dll")]
-        public static extern uint GetCurrentThreadId();
+    [LibraryImport("user32.dll", SetLastError = true)]
+    public static partial uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
+    [LibraryImport("kernel32.dll")]
+    public static partial uint GetCurrentThreadId();
 
-        [DllImport("user32.dll")]
-        public static extern bool AttachThreadInput(uint idAttach, uint idAttachTo, bool fAttach);
+    [LibraryImport("user32.dll")]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool AttachThreadInput(uint idAttach, uint idAttachTo, [MarshalAs(UnmanagedType.Bool)] bool fAttach);
 
-        [DllImport("user32.dll")]
-        public static extern void SwitchToThisWindow(IntPtr hWnd, bool turnon);
+    [LibraryImport("user32.dll")]
+    public static partial void SwitchToThisWindow(IntPtr hWnd, [MarshalAs(UnmanagedType.Bool)] bool turnon);
 
-    }
-}
\ No newline at end of file
+}
diff --git a/Switchy/Switchy/Utils/WindowHelper.cs b/Switchy/Switchy/Utils/WindowHelper.cs
index 21f76e6..6d2cfa3 100644
--- a/Switchy/Switchy/Utils/WindowHelper.cs
+++ b/Switchy/Switchy/Utils/WindowHelper.cs
@@ -2,128 +2,130 @@
 using System.Diagnostics;
 using System.Windows;
 
-namespace Switchy.Utils
+namespace Switchy.Utils;
+
+public enum WindowSwitcherType
+{
+    Normal,
+    SwitchToThisWindow
+}
+
+public class WindowHelper(IEnumerable<ProcessListViewItem> selectedItems, double timeInSeconds, WindowSwitcherType switcherType) : IDisposable
 {
-    public enum WindowSwitcherType
+    private PeriodicTimer? _myTimer;
+    private ProcessListViewItem? _current = null;
+    private readonly double _timeInSeconds = timeInSeconds;
+    private readonly WindowSwitcherType _switchType = switcherType;
+    private readonly List<ProcessListViewItem> _initalSelected = selectedItems.ToList();
+    private readonly uint _ownThreadId = User32Helper.GetCurrentThreadId();
+
+    public List<ProcessListViewItem> SelectedItems
+        => _initalSelected.FindAll(x => !x.IsExited);
+
+    private static void BringProcessToFront(Process process)
     {
-        Normal,
-        SwitchToThisWindow
+        nint handle = process.MainWindowHandle;
+        if (User32Helper.IsIconic(handle))
+        {
+            User32Helper.ShowWindow(handle, User32Helper.SW_RESTORE);
+        }
+
+        User32Helper.SetForegroundWindow(handle);
     }
-    public class WindowHelper(IEnumerable<ProcessListViewItem> selectedItems, double timeInSeconds, WindowSwitcherType switcherType) : IDisposable
+    private static void SwitchToThisWindow(Process process)
     {
-        private PeriodicTimer? _myTimer;
-        private ProcessListViewItem? _current = null;
-        private readonly double _timeInSeconds = timeInSeconds;
-        private readonly WindowSwitcherType _switchType = switcherType;
-        private List<ProcessListViewItem> _selectedItemsBackingField = selectedItems.ToList();
-        private List<ProcessListViewItem> SelectedItems { get => _selectedItemsBackingField.FindAll(x => !x.HasExited); set => _selectedItemsBackingField = value; }
-        private readonly uint _ownThreadId = User32Helper.GetCurrentThreadId();
-        private static void BringProcessToFront(Process process)
-        {
-            nint handle = process.MainWindowHandle;
-            if (User32Helper.IsIconic(handle))
-            {
-                User32Helper.ShowWindow(handle, User32Helper.SW_RESTORE);
-            }
+        nint handle = process.MainWindowHandle;
 
-            User32Helper.SetForegroundWindow(handle);
-        }
-        private static void SwitchToThisWindow(Process process)
-        {
-            nint handle = process.MainWindowHandle;
-            if (User32Helper.IsIconic(handle))
-            {
-                User32Helper.ShowWindow(handle, User32Helper.SW_RESTORE);
-            }
+        if (User32Helper.IsIconic(handle))
+            User32Helper.ShowWindow(handle, User32Helper.SW_RESTORE);
 
-            User32Helper.SwitchToThisWindow(handle, true);
-        }
+        User32Helper.SwitchToThisWindow(handle, true);
+    }
+
+    private void DisplayNextWindow()
+    {
+        if (_current == null) { throw new Exception("Something went wrong"); }
 
-        private void DisplayNextWindow()
+        switch (_switchType)
         {
-            if (_current == null) { throw new Exception("Something went wrong"); }
+            case WindowSwitcherType.Normal:
+                {
+                    BringProcessToFront(Process.GetProcessById(Convert.ToInt32(_current.Process.Id)));
+                    break;
+                }
+            case WindowSwitcherType.SwitchToThisWindow:
+                {
+                    SwitchToThisWindow(Process.GetProcessById(Convert.ToInt32(_current.Process.Id)));
+                    break;
+                }
+        }
 
-            switch (_switchType)
-            {
-                case WindowSwitcherType.Normal:
-                    {
-                        BringProcessToFront(Process.GetProcessById(Convert.ToInt32(_current.Process.Id)));
-                        break;
-                    }
-                case WindowSwitcherType.SwitchToThisWindow:
-                    {
-                        SwitchToThisWindow(Process.GetProcessById(Convert.ToInt32(_current.Process.Id)));
-                        break;
-                    }
-            }
+        var curIndex = SelectedItems.IndexOf(_current);
+        if (curIndex < SelectedItems.Count - 1)
+            _current = SelectedItems[curIndex + 1];
+        else
+            _current = SelectedItems.First();
+    }
 
-            var curIndex = SelectedItems.IndexOf(_current);
-            if (curIndex < SelectedItems.Count - 1)
-                _current = SelectedItems[curIndex + 1];
-            else
-                _current = SelectedItems.First();
+    public int Start()
+    {
+        if (SelectedItems.Count == 0)
+        {
+            MessageBox.Show("You currently have no windows selected or all selected process have already exited!");
+            return -1;
         }
 
-        public int Start()
+        if (_timeInSeconds <= 0)
         {
-            if (SelectedItems.Count == 0)
-            {
-                MessageBox.Show("You currently have no windows selected or all selected process have already exited!");
-                return -1;
-            }
-
-            if (_timeInSeconds <= 0)
-            {
-                MessageBox.Show($"Your time in seconds might be off - it is currently set to {_timeInSeconds} seconds");
-                return -1;
-            }
-
-            var res = MessageBox.Show($"Switching between selected windows every {_timeInSeconds} seconds. Press OK to start!", "Confirm", MessageBoxButton.OKCancel);
-            if (res == MessageBoxResult.Cancel)
-            {
-                MessageBox.Show("Timer canceled!");
-                return -1;
-            }
+            MessageBox.Show($"Your time in seconds might be off - it is currently set to {_timeInSeconds} seconds");
+            return -1;
+        }
 
-            _current = SelectedItems.First();
+        var res = MessageBox.Show($"Switching between selected windows every {_timeInSeconds} seconds. Press OK to start!", "Confirm", MessageBoxButton.OKCancel);
+        if (res == MessageBoxResult.Cancel)
+        {
+            MessageBox.Show("Timer canceled!");
+            return -1;
+        }
 
-            foreach (var item in SelectedItems)
-            {
-                uint foregroundThreadId = User32Helper.GetWindowThreadProcessId(item.Process.MainWindowHandle, out var _);
-                User32Helper.AttachThreadInput(_ownThreadId, foregroundThreadId, true);
-            }
+        _current = SelectedItems.First();
 
-            _ = RunInBackground(TimeSpan.FromSeconds(_timeInSeconds), () => DisplayNextWindow());
-            DisplayNextWindow();
-            return 0;
+        foreach (var item in SelectedItems)
+        {
+            uint foregroundThreadId = User32Helper.GetWindowThreadProcessId(item.Process.MainWindowHandle, out var _);
+            User32Helper.AttachThreadInput(_ownThreadId, foregroundThreadId, true);
         }
 
-        async Task RunInBackground(TimeSpan timeSpan, Action action)
+        _ = RunInBackground(TimeSpan.FromSeconds(_timeInSeconds), () => DisplayNextWindow());
+        DisplayNextWindow();
+        return 0;
+    }
+
+    private async Task RunInBackground(TimeSpan timeSpan, Action action)
+    {
+        _myTimer = new PeriodicTimer(timeSpan);
+        while (await _myTimer.WaitForNextTickAsync())
         {
-            _myTimer = new PeriodicTimer(timeSpan);
-            while (await _myTimer.WaitForNextTickAsync())
-            {
-                action();
-            }
+            action();
         }
+    }
 
-        public void Dispose()
+    public void Dispose()
+    {
+        try
         {
-            try
-            {
-                _myTimer?.Dispose();
+            _myTimer?.Dispose();
 
-                foreach (var item in SelectedItems)
-                {
-                    uint foregroundThreadId = User32Helper.GetWindowThreadProcessId(item.Process.MainWindowHandle, out var _);
-                    User32Helper.AttachThreadInput(_ownThreadId, foregroundThreadId, false);
-                }
-                GC.SuppressFinalize(this);
-            }
-            catch
+            foreach (var item in SelectedItems)
             {
-                throw;
+                uint foregroundThreadId = User32Helper.GetWindowThreadProcessId(item.Process.MainWindowHandle, out var _);
+                User32Helper.AttachThreadInput(_ownThreadId, foregroundThreadId, false);
             }
+            GC.SuppressFinalize(this);
+        }
+        catch
+        {
+            throw;
         }
     }
 }
diff --git a/Switchy/Switchy/View/MainWindow.xaml b/Switchy/Switchy/View/MainWindow.xaml
new file mode 100644
index 0000000..ae5ae1a
--- /dev/null
+++ b/Switchy/Switchy/View/MainWindow.xaml
@@ -0,0 +1,115 @@
+<Window x:Class="Switchy.View.MainWindow"
+        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:i="http://schemas.microsoft.com/xaml/behaviors"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+        xmlns:sys="clr-namespace:System;assembly=mscorlib"
+        xmlns:scm="clr-namespace:System.ComponentModel;assembly=WindowsBase"
+        xmlns:utils="clr-namespace:Switchy.Utils" 
+        xmlns:vm="clr-namespace:Switchy.ViewModel" 
+        mc:Ignorable="d"
+        Title="Switchy" Height="500" Width="1000">
+    <Window.DataContext>
+        <vm:ProcessManager />
+    </Window.DataContext>
+    <Window.Resources>
+        <ObjectDataProvider x:Key="WindowSwitcherTypes" MethodName="GetValues" ObjectType="{x:Type sys:Enum}">
+            <ObjectDataProvider.MethodParameters>
+                <x:Type TypeName="utils:WindowSwitcherType" />
+            </ObjectDataProvider.MethodParameters>
+        </ObjectDataProvider>
+        <CollectionViewSource x:Key="AvailableProcessesViewSource" Source="{Binding FilteredAvailableProcesses}">
+            <CollectionViewSource.SortDescriptions>
+                <scm:SortDescription PropertyName="Process.ProcessName" Direction="Ascending"/>
+            </CollectionViewSource.SortDescriptions>
+        </CollectionViewSource>
+        <Style TargetType="StackPanel" x:Key="CenterMenuBarStyle">
+            <Style.Resources>
+                <Style TargetType="Button">
+                    <Setter Property="Margin" Value="0,0,0,20" />
+                    <Setter Property="Height" Value="30" />
+                    <Setter Property="Width" Value="35" />
+                </Style>
+            </Style.Resources>
+        </Style>
+    </Window.Resources>
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="4*"/>
+            <ColumnDefinition Width="35"/>
+            <ColumnDefinition Width="4*"/>
+        </Grid.ColumnDefinitions>
+        <Grid Grid.Column="0">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="40" />
+                <RowDefinition Height="*" />
+                <RowDefinition Height="50" />
+            </Grid.RowDefinitions>
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="100" />
+                    <ColumnDefinition Width="*" />
+                    <ColumnDefinition Width="100" />
+                </Grid.ColumnDefinitions>
+                <Label Content="Filter by Name:" Height="40" Padding="10" HorizontalAlignment="Left" Grid.Row="0"/>
+                <TextBox Name="ProcessSearchTextBox" TextWrapping="Wrap" Text="{Binding SearchText}" TextChanged="ProcessSearchTextBox_TextChanged" Width="120" Margin="0,10" HorizontalAlignment="Left" Grid.Row="0" Grid.Column="1" />
+                <Button Content="Refresh" Grid.Column="2" Height="20" Margin="10,10" Command="{Binding UpdateAvailableProcessListCommand}"/>
+            </Grid>
+            <ListView Name="AvailableProcessListView" ItemsSource="{Binding Source={StaticResource AvailableProcessesViewSource}}" SelectionMode="Single" Margin="10,0,10,10" Grid.Row="1">
+                <i:Interaction.Triggers>
+                    <i:EventTrigger EventName="MouseDoubleClick">
+                        <i:InvokeCommandAction Command="{Binding AddSelectedItemCommand}" CommandParameter="{Binding ElementName=AvailableProcessListView, Path=SelectedItem}" />
+                    </i:EventTrigger>
+                </i:Interaction.Triggers>
+                <ListView.View>
+                    <GridView AllowsColumnReorder="true" ColumnHeaderToolTip="Processes">
+                        <GridViewColumn DisplayMemberBinding="{Binding Process.ProcessName}" Header="Name" Width="200"/>
+                        <GridViewColumn DisplayMemberBinding="{Binding Process.Id}" Header="Id" Width="60"/>
+                        <GridViewColumn DisplayMemberBinding="{Binding IsExited}" Header="Exited" Width="70"/>
+                    </GridView>
+                </ListView.View>
+            </ListView>
+            <ComboBox ItemsSource="{Binding Source={StaticResource WindowSwitcherTypes}}" SelectedItem="{Binding SwitcherType}" Height="25" Margin="10,0,0,0" Grid.Row="3" Width="150" HorizontalAlignment="Left" />
+        </Grid>
+        <StackPanel Grid.Column="1" Style="{StaticResource CenterMenuBarStyle}" VerticalAlignment="Center">
+            <Button Content=">>" Command="{Binding AddSelectedItemCommand}" CommandParameter="{Binding ElementName=AvailableProcessListView, Path=SelectedItem}" />
+            <Button Content="Up" Command="{Binding MoveItemUpCommand}" CommandParameter="{Binding ElementName=SelectedProcessListView, Path=SelectedItem}" />
+            <Button Content="Down" Command="{Binding MoveItemDownCommand}" CommandParameter="{Binding ElementName=SelectedProcessListView, Path=SelectedItem}" />
+            <Button Content="&lt;&lt;" Command="{Binding RemoveSelectedItemCommand}" CommandParameter="{Binding ElementName=SelectedProcessListView, Path=SelectedItem}" />
+        </StackPanel>
+        <Grid Grid.Column="2">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="40" />
+                <RowDefinition Height="*" />
+                <RowDefinition Height="50" />
+            </Grid.RowDefinitions>
+            <Label Content="Switching windows every x seconds:" Height="40" Padding="10" HorizontalAlignment="Left" Grid.Row="0"/>
+            
+            <TextBox Text="{Binding TimerInSecondsText}" Width="120" Margin="10" HorizontalAlignment="Right" Grid.Row="0" PreviewTextInput="NumericOnly"/>
+            <ListView Name="SelectedProcessListView" ItemsSource="{Binding SelectedProcesses}" SelectionMode="Single" Margin="10,0,10,10" Grid.Row="1">
+                <i:Interaction.Triggers>
+                    <i:EventTrigger EventName="MouseDoubleClick">
+                        <i:InvokeCommandAction Command="{Binding RemoveSelectedItemCommand}" CommandParameter="{Binding ElementName=SelectedProcessListView, Path=SelectedItem}" />
+                    </i:EventTrigger>
+                </i:Interaction.Triggers>
+                <ListView.View>
+                    <GridView>
+                        <GridViewColumn DisplayMemberBinding="{Binding Process.ProcessName}" Header="Name" Width="200"/>
+                        <GridViewColumn DisplayMemberBinding="{Binding Process.Id}" Header="Id" Width="60"/>
+                        <GridViewColumn DisplayMemberBinding="{Binding IsExited}" Header="Exited" Width="70"/>
+                    </GridView>
+                </ListView.View>
+            </ListView>
+            <Grid Grid.Row="2" Margin="10">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="50"/>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="50"/>
+                </Grid.ColumnDefinitions>
+                <Button Content="Start" Command="{Binding StartCommand}" Grid.Column="0" />
+                <Button Content="Stop" Command="{Binding StopCommand}" Grid.Column="2" />
+            </Grid>
+        </Grid>
+    </Grid>
+</Window>
diff --git a/Switchy/Switchy/View/MainWindow.xaml.cs b/Switchy/Switchy/View/MainWindow.xaml.cs
new file mode 100644
index 0000000..0e4d9e7
--- /dev/null
+++ b/Switchy/Switchy/View/MainWindow.xaml.cs
@@ -0,0 +1,32 @@
+using Switchy.ViewModel;
+using System.Windows;
+using System.Windows.Input;
+using System.Text.RegularExpressions;
+using System.Windows.Controls;
+
+namespace Switchy.View;
+
+/// <summary>
+/// Interaction logic for MainWindow.xaml
+/// </summary>
+public partial class MainWindow : Window
+{
+    [GeneratedRegex("[^0-9]")]
+    private static partial Regex NumericRegex();
+
+    private ProcessManager ProcessManager => (ProcessManager)DataContext;
+
+    public MainWindow()
+    {
+        InitializeComponent();
+        DataContext = new ProcessManager();
+    }
+
+    private void NumericOnly(object sender, TextCompositionEventArgs e)
+        => e.Handled = NumericRegex().IsMatch(e.Text);
+    private void ProcessSearchTextBox_TextChanged(object sender, TextChangedEventArgs e)
+    {
+        if (sender is TextBox tb)
+            ProcessManager.FilterAvailableProcessList(tb.Text);
+    }
+}
\ No newline at end of file
diff --git a/Switchy/Switchy/ViewModel/ProcessManager.cs b/Switchy/Switchy/ViewModel/ProcessManager.cs
new file mode 100644
index 0000000..a092b9b
--- /dev/null
+++ b/Switchy/Switchy/ViewModel/ProcessManager.cs
@@ -0,0 +1,145 @@
+using System.Collections.ObjectModel;
+using System.Diagnostics;
+using System.Windows;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Switchy.Model;
+using Switchy.Utils;
+
+namespace Switchy.ViewModel;
+
+public partial class ProcessManager : ObservableObject
+{
+    private WindowHelper? _windowHelper;
+
+    [ObservableProperty]
+    private string _searchText = string.Empty;
+    [ObservableProperty]
+    private string _timerInSecondsText = "60";
+    [ObservableProperty]
+    private WindowSwitcherType _switcherType = WindowSwitcherType.Normal;
+
+    public ObservableCollection<ProcessListViewItem> AvailableProcesses { get; } = [];
+    public ObservableCollection<ProcessListViewItem> FilteredAvailableProcesses { get; } = [];
+    public ObservableCollection<ProcessListViewItem> SelectedProcesses { get; } = [];
+
+    public ProcessManager()
+    {
+        UpdateAvailableProcessList();
+    }
+
+    [RelayCommand]
+    private void AddSelectedItem(ProcessListViewItem? item)
+    {
+        if (item == null)
+            return;
+
+        if (item.IsExited)
+        {
+            MessageBox.Show($"Processes has \"{item.Process.ProcessName}\" already exited! Please refresh the list and try again!");
+            return;
+        }
+
+        if (!SelectedProcesses.Contains(item))
+        {
+            SelectedProcesses.Add(item);
+            AvailableProcesses.Remove(item);
+        }
+
+        FilterAvailableProcessList();
+    }
+
+    [RelayCommand]
+    private void RemoveSelectedItem(ProcessListViewItem? item)
+    {
+        if (item == null)
+            return;
+
+        SelectedProcesses.Remove(item);
+        AvailableProcesses.Add(item);
+
+        FilterAvailableProcessList();
+    }
+
+    [RelayCommand]
+    public void MoveItemUp(ProcessListViewItem? item)
+    {
+        if (item == null)
+            return;
+
+        var curIndex = SelectedProcesses.IndexOf(item);
+        if (curIndex > 0)
+            SelectedProcesses.Move(curIndex, curIndex - 1);
+    }
+
+    [RelayCommand]
+    public void MoveItemDown(ProcessListViewItem? item)
+    {
+        if (item == null)
+            return;
+
+        var curIndex = SelectedProcesses.IndexOf(item);
+        if (curIndex < SelectedProcesses.Count - 1)
+            SelectedProcesses.Move(curIndex, curIndex + 1);
+    }
+
+    [RelayCommand]
+    public void UpdateAvailableProcessList()
+    {
+        AvailableProcesses.Clear();
+
+        Process.GetProcesses()
+            .Where(p => p.MainWindowHandle != 0)
+            .Where(x => !SelectedProcesses.Any(y => y.Process.Id == x.Id))
+            .Select(c => new ProcessListViewItem(c))
+            .ToList()
+            .ForEach(AvailableProcesses.Add);
+
+        FilterAvailableProcessList();
+    }
+
+    [RelayCommand]
+    public void Start()
+    {
+        if (_windowHelper != null)
+        {
+            MessageBox.Show("Window switching is already in progress! Please stop before starting again.");
+            return;
+        }
+
+        if (!double.TryParse(TimerInSecondsText, out double timerInSeconds))
+        {
+            MessageBox.Show("You need to enter a value for the window switching time in seconds!");
+            return;
+        }
+
+        _windowHelper = new WindowHelper(SelectedProcesses, timerInSeconds, SwitcherType);
+
+        if (_windowHelper.Start() == -1)
+            Stop();
+    }
+
+    [RelayCommand]
+    public void Stop()
+    {
+        _windowHelper?.Dispose();
+        _windowHelper = null;
+        MessageBox.Show("Switching windows stopped.");
+    }
+
+    public void FilterAvailableProcessList(string? searchText = null)
+    {
+        searchText ??= SearchText;
+
+        var filteredProcesses = AvailableProcesses.Where(i => i.Process.ProcessName.Contains(searchText, StringComparison.CurrentCultureIgnoreCase)).ToList();
+
+        var itemsToRemove = FilteredAvailableProcesses.Except(filteredProcesses).ToList();
+        var itemsToAdd = filteredProcesses.Except(FilteredAvailableProcesses).ToList();
+
+        foreach (var item in itemsToRemove)
+            FilteredAvailableProcesses.Remove(item);
+
+        foreach (var item in itemsToAdd)
+            FilteredAvailableProcesses.Add(item);
+    }
+}