Node editor - Added undo/redo to event and datamodel nodes

src/Artemis.Core/VisualScripting/Node.cs

@@ -4,8 +4,8 @@ using System.Collections.ObjectModel;
 using Ninject;
 using Ninject.Parameters;
 
-namespace Artemis.Core
+namespace Artemis.Core;
-{
+
 /// <summary>
 ///     Represents a kind of node inside a <see cref="NodeScript" />
 /// </summary>
@@ -253,8 +253,9 @@ namespace Artemis.Core
     /// <summary>
     ///     Called whenever the node must show it's custom view model, if <see langword="null" />, no custom view model is used
     /// </summary>
+    /// <param name="nodeScript"></param>
     /// <returns>The custom view model, if <see langword="null" />, no custom view model is used</returns>
-        public virtual ICustomNodeViewModel? GetCustomViewModel()
+    public virtual ICustomNodeViewModel? GetCustomViewModel(NodeScript nodeScript)
     {
         return null;
     }
@@ -304,8 +305,17 @@ namespace Artemis.Core
     public TStorage? Storage
     {
         get => _storage;
-            set => SetAndNotify(ref _storage, value);
+        set
+        {
+            if (SetAndNotify(ref _storage, value))
+                StorageModified?.Invoke(this, EventArgs.Empty);
         }
+    }
+
+    /// <summary>
+    ///     Occurs whenever the storage of this node was modified.
+    /// </summary>
+    public event EventHandler? StorageModified;
 
     internal override string SerializeStorage()
     {
@@ -342,15 +352,16 @@ namespace Artemis.Core
     /// <summary>
     ///     Called when a view model is required
     /// </summary>
-        public virtual TViewModel GetViewModel()
+    /// <param name="nodeScript"></param>
+    public virtual TViewModel GetViewModel(NodeScript nodeScript)
     {
-            return Kernel.Get<TViewModel>(new ConstructorArgument("node", this));
+        return Kernel.Get<TViewModel>(new ConstructorArgument("node", this), new ConstructorArgument("script", nodeScript));
     }
 
+    /// <param name="nodeScript"></param>
     /// <inheritdoc />
-        public override ICustomNodeViewModel GetCustomViewModel()
+    public override ICustomNodeViewModel? GetCustomViewModel(NodeScript nodeScript)
     {
-            return GetViewModel();
+        return GetViewModel(nodeScript);
-        }
     }
 }

src/Avalonia/Artemis.UI.Shared/Services/NodeEditor/Commands/UpdateStorage.cs

@@ -0,0 +1,72 @@
+using System;
+using Artemis.Core;
+
+namespace Artemis.UI.Shared.Services.NodeEditor.Commands;
+
+/// <summary>
+///     Represents a node editor command that can be used to update the storage value of a node.
+/// </summary>
+/// <typeparam name="TStorage">The type of value the node stores</typeparam>
+public class UpdateStorage<TStorage> : INodeEditorCommand, IDisposable
+{
+    private readonly Node<TStorage> _node;
+    private readonly TStorage? _originalValue;
+    private readonly TStorage? _value;
+    private readonly string _valueDescription;
+    private bool _updatedValue;
+
+    /// <summary>
+    ///     Creates a new instance of the <see cref="UpdateStorage{T}" /> class.
+    /// </summary>
+    /// <param name="node">The node to update.</param>
+    /// <param name="value">The new value of the node.</param>
+    /// <param name="valueDescription">The description of the value that was updated.</param>
+    public UpdateStorage(Node<TStorage> node, TStorage? value, string valueDescription = "value")
+    {
+        _node = node;
+        _value = value;
+        _valueDescription = valueDescription;
+
+        _originalValue = _node.Storage;
+    }
+
+    #region Implementation of INodeEditorCommand
+
+    /// <inheritdoc />
+    public string DisplayName => $"Update node {_valueDescription}";
+
+    /// <inheritdoc />
+    public void Execute()
+    {
+        _updatedValue = true;
+        _node.Storage = _value;
+    }
+
+    /// <inheritdoc />
+    public void Undo()
+    {
+        _updatedValue = false;
+        _node.Storage = _originalValue;
+    }
+
+    #endregion
+
+    #region IDisposable
+
+    /// <inheritdoc />
+    public void Dispose()
+    {
+        if (_updatedValue)
+        {
+            if (_originalValue is IDisposable disposable)
+                disposable.Dispose();
+        }
+        else
+        {
+            if (_value is IDisposable disposable)
+                disposable.Dispose();
+        }
+    }
+
+    #endregion
+}

src/Avalonia/Artemis.UI.Shared/VisualScripting/CustomNodeViewModel.cs

@@ -4,13 +4,22 @@ using System.Reactive.Disposables;
 using Artemis.Core;
 using ReactiveUI;
 
-namespace Artemis.UI.Shared.VisualScripting
+namespace Artemis.UI.Shared.VisualScripting;
-{
+
+/// <summary>
+///     Represents a custom view model for a node
+/// </summary>
 public abstract class CustomNodeViewModel : ActivatableViewModelBase, ICustomNodeViewModel
 {
-        protected CustomNodeViewModel(INode node)
+    /// <summary>
+    ///     Creates a new instance of the <see cref="CustomNodeViewModel" /> class.
+    /// </summary>
+    /// <param name="node">The node the view model is for.</param>
+    /// <param name="script">The script the node is contained in.</param>
+    protected CustomNodeViewModel(INode node, INodeScript script)
     {
         Node = node;
+        Script = script;
 
         this.WhenActivated(d =>
         {
@@ -19,12 +28,15 @@ namespace Artemis.UI.Shared.VisualScripting
         });
     }
 
+    /// <summary>
+    ///     Gets the node the view model is for.
+    /// </summary>
     public INode Node { get; }
 
-        #region Events
+    /// <summary>
-
+    ///     Gets script the node is contained in.
-        /// <inheritdoc />
+    /// </summary>
-        public event EventHandler NodeModified;
+    public INodeScript Script { get; }
 
     /// <summary>
     ///     Invokes the <see cref="NodeModified" /> event
@@ -34,16 +46,12 @@ namespace Artemis.UI.Shared.VisualScripting
         NodeModified?.Invoke(this, EventArgs.Empty);
     }
 
-        #endregion
-
-        #region Event handlers
-
     private void NodeOnPropertyChanged(object? sender, PropertyChangedEventArgs e)
     {
         if (e.PropertyName == "Storage")
             OnNodeModified();
     }
 
-        #endregion
+    /// <inheritdoc />
-    }
+    public event EventHandler? NodeModified;
 }

src/Avalonia/Artemis.UI/Screens/VisualScripting/NodeScriptViewModel.cs

@@ -8,6 +8,7 @@ using Artemis.Core.Events;
 using Artemis.UI.Ninject.Factories;
 using Artemis.UI.Screens.VisualScripting.Pins;
 using Artemis.UI.Shared;
+using Artemis.UI.Shared.Services.Interfaces;
 using Artemis.UI.Shared.Services.NodeEditor;
 using Artemis.UI.Shared.Services.NodeEditor.Commands;
 using Avalonia;
@@ -21,15 +22,17 @@ namespace Artemis.UI.Screens.VisualScripting;
 public class NodeScriptViewModel : ActivatableViewModelBase
 {
     private readonly INodeEditorService _nodeEditorService;
+    private readonly INotificationService _notificationService;
     private readonly SourceList<NodeViewModel> _nodeViewModels;
     private readonly INodeVmFactory _nodeVmFactory;
     private DragCableViewModel? _dragViewModel;
     private List<NodeViewModel>? _initialNodeSelection;
 
-    public NodeScriptViewModel(NodeScript nodeScript, INodeVmFactory nodeVmFactory, INodeEditorService nodeEditorService)
+    public NodeScriptViewModel(NodeScript nodeScript, INodeVmFactory nodeVmFactory, INodeEditorService nodeEditorService, INotificationService notificationService)
     {
         _nodeVmFactory = nodeVmFactory;
         _nodeEditorService = nodeEditorService;
+        _notificationService = notificationService;
         _nodeViewModels = new SourceList<NodeViewModel>();
 
         NodeScript = nodeScript;
@@ -44,6 +47,13 @@ public class NodeScriptViewModel : ActivatableViewModelBase
             Observable.FromEventPattern<SingleValueEventArgs<INode>>(x => NodeScript.NodeRemoved += x, x => NodeScript.NodeRemoved -= x)
                 .Subscribe(e => HandleNodeRemoved(e.EventArgs))
                 .DisposeWith(d);
+
+            nodeEditorService.GetHistory(NodeScript).Undo
+                .Subscribe(c => _notificationService.CreateNotification().WithMessage(c != null ? $"Undid {c.DisplayName}" : "Nothing to undo").Show())
+                .DisposeWith(d);
+            nodeEditorService.GetHistory(NodeScript).Redo
+                .Subscribe(c => _notificationService.CreateNotification().WithMessage(c != null ? $"Redid {c.DisplayName}" : "Nothing to redo").Show())
+                .DisposeWith(d);
         });
 
         // Create VMs for all nodes

src/Avalonia/Artemis.UI/Screens/VisualScripting/NodeViewModel.cs

@@ -113,7 +113,7 @@ public class NodeViewModel : ActivatableViewModelBase
             })).DisposeWith(d);
 
             if (Node is Node coreNode)
-                CustomNodeViewModel = coreNode.GetCustomViewModel();
+                CustomNodeViewModel = coreNode.GetCustomViewModel(nodeScriptViewModel.NodeScript);
         });
     }
 

src/Avalonia/Artemis.VisualScripting/Nodes/Color/CustomViewModels/StaticSKColorValueNodeCustomViewModel.cs

@@ -1,10 +1,11 @@
-using Artemis.UI.Shared.VisualScripting;
+using Artemis.Core;
+using Artemis.UI.Shared.VisualScripting;
 
 namespace Artemis.VisualScripting.Nodes.Color.CustomViewModels;
 
 public class StaticSKColorValueNodeCustomViewModel : CustomNodeViewModel
 {
-    public StaticSKColorValueNodeCustomViewModel(StaticSKColorValueNode node) : base(node)
+    public StaticSKColorValueNodeCustomViewModel(StaticSKColorValueNode node, INodeScript script) : base(node, script)
     {
     }
 }

src/Avalonia/Artemis.VisualScripting/Nodes/CustomViewModels/EnumEqualsNodeCustomViewModel.cs

@@ -10,7 +10,7 @@ public class EnumEqualsNodeCustomViewModel : CustomNodeViewModel
 {
     private readonly EnumEqualsNode _node;
 
-    public EnumEqualsNodeCustomViewModel(EnumEqualsNode node) : base(node)
+    public EnumEqualsNodeCustomViewModel(EnumEqualsNode node, INodeScript script) : base(node, script)
     {
         _node = node;
     }

src/Avalonia/Artemis.VisualScripting/Nodes/CustomViewModels/LayerPropertyNodeCustomViewModel.cs

@@ -11,7 +11,7 @@ public class LayerPropertyNodeCustomViewModel : CustomNodeViewModel
 
     private RenderProfileElement _selectedProfileElement;
 
-    public LayerPropertyNodeCustomViewModel(LayerPropertyNode node) : base(node)
+    public LayerPropertyNodeCustomViewModel(LayerPropertyNode node, INodeScript script) : base(node, script)
     {
         _node = node;
     }

src/Avalonia/Artemis.VisualScripting/Nodes/CustomViewModels/StaticValueNodeViewModels.cs

@@ -5,14 +5,14 @@ namespace Artemis.VisualScripting.Nodes.CustomViewModels;
 
 public class StaticNumericValueNodeCustomViewModel : CustomNodeViewModel
 {
-    public StaticNumericValueNodeCustomViewModel(INode node) : base(node)
+    public StaticNumericValueNodeCustomViewModel(INode node, INodeScript script) : base(node, script)
     {
     }
 }
 
 public class StaticStringValueNodeCustomViewModel : CustomNodeViewModel
 {
-    public StaticStringValueNodeCustomViewModel(INode node) : base(node)
+    public StaticStringValueNodeCustomViewModel(INode node, INodeScript script) : base(node, script)
     {
     }
 }

src/Avalonia/Artemis.VisualScripting/Nodes/DataModel/CustomViewModels/DataModelEventNodeCustomViewModel.cs

@@ -1,9 +1,11 @@
 using System.Collections.ObjectModel;
-using System.ComponentModel;
 using System.Reactive.Disposables;
 using Artemis.Core;
 using Artemis.Core.Modules;
 using Artemis.Core.Services;
+using Artemis.Storage.Entities.Profile;
+using Artemis.UI.Shared.Services.NodeEditor;
+using Artemis.UI.Shared.Services.NodeEditor.Commands;
 using Artemis.UI.Shared.VisualScripting;
 using ReactiveUI;
 
@@ -12,29 +14,40 @@ namespace Artemis.VisualScripting.Nodes.DataModel.CustomViewModels;
 public class DataModelEventNodeCustomViewModel : CustomNodeViewModel
 {
     private readonly DataModelEventNode _node;
+    private readonly INodeEditorService _nodeEditorService;
+    private bool _updating;
+    private DataModelPath? _dataModelPath;
     private ObservableCollection<Module>? _modules;
 
-    public DataModelEventNodeCustomViewModel(DataModelEventNode node, ISettingsService settingsService) : base(node)
+    public DataModelEventNodeCustomViewModel(DataModelEventNode node, INodeScript script, ISettingsService settingsService, INodeEditorService nodeEditorService) : base(node, script)
     {
         _node = node;
+        _nodeEditorService = nodeEditorService;
 
         ShowFullPaths = settingsService.GetSetting("ProfileEditor.ShowFullPaths", true);
         ShowDataModelValues = settingsService.GetSetting("ProfileEditor.ShowDataModelValues", false);
+        Modules = new ObservableCollection<Module>();
 
         this.WhenActivated(d =>
         {
-            if (Modules != null)
+            // Set up extra modules
-                return;
+            if (_node.Script?.Context is Profile scriptProfile && scriptProfile.Configuration.Module != null)
+                Modules = new ObservableCollection<Module> {scriptProfile.Configuration.Module};
+            else if (_node.Script?.Context is ProfileConfiguration profileConfiguration && profileConfiguration.Module != null)
+                Modules = new ObservableCollection<Module> {profileConfiguration.Module};
 
-            Modules = new ObservableCollection<Module>();
+            // Subscribe to node changes 
-            if (_node.Script.Context is Profile scriptProfile && scriptProfile.Configuration.Module != null)
+            _node.WhenAnyValue(n => n.Storage).Subscribe(UpdateDataModelPath).DisposeWith(d);
-                Modules.Add(scriptProfile.Configuration.Module);
+            UpdateDataModelPath(_node.Storage);
-            else if (_node.Script.Context is ProfileConfiguration profileConfiguration && profileConfiguration.Module != null)
-                Modules.Add(profileConfiguration.Module);
 
-            _node.PropertyChanged += NodeOnPropertyChanged;
+            Disposable.Create(() =>
-            Disposable.Create(() => _node.PropertyChanged -= NodeOnPropertyChanged).DisposeWith(d);
+            {
+                _dataModelPath?.Dispose();
+                _dataModelPath = null;
+            }).DisposeWith(d);
         });
+
+        this.WhenAnyValue(vm => vm.DataModelPath).Subscribe(ApplyDataModelPath);
     }
 
     public PluginSetting<bool> ShowFullPaths { get; }
@@ -47,25 +60,48 @@ public class DataModelEventNodeCustomViewModel : CustomNodeViewModel
         set => RaiseAndSetIfChanged(ref _modules, value);
     }
 
-    public DataModelPath DataModelPath
+    public DataModelPath? DataModelPath
     {
-        get => _node.DataModelPath;
+        get => _dataModelPath;
-        set
+        set => RaiseAndSetIfChanged(ref _dataModelPath, value);
+    }
+
+    private void UpdateDataModelPath(DataModelPathEntity? entity)
     {
-            if (ReferenceEquals(_node.DataModelPath, value))
+        try
+        {
+            if (_updating)
                 return;
 
-            _node.DataModelPath?.Dispose();
+            _updating = true;
-            _node.DataModelPath = value;
-            _node.DataModelPath.Save();
 
-            _node.Storage = _node.DataModelPath.Entity;
+            DataModelPath? old = DataModelPath;
+            DataModelPath = entity != null ? new DataModelPath(entity) : null;
+            old?.Dispose();
         }
-    }
+        finally
-
-    private void NodeOnPropertyChanged(object? sender, PropertyChangedEventArgs e)
         {
-        if (e.PropertyName == nameof(DataModelNode.DataModelPath))
+            _updating = false;
-            this.RaisePropertyChanged(nameof(DataModelPath));
+        }
+    }
+
+    private void ApplyDataModelPath(DataModelPath? path)
+    {
+        try
+        {
+            if (_updating)
+                return;
+            if (path?.Path == _node.Storage?.Path)
+                return;
+
+            _updating = true;
+
+            path?.Save();
+            _nodeEditorService.ExecuteCommand(Script, new UpdateStorage<DataModelPathEntity>(_node, path?.Entity, "event"));
+        }
+        finally
+        {
+            _updating = false;
+        }
     }
 }

src/Avalonia/Artemis.VisualScripting/Nodes/DataModel/CustomViewModels/DataModelNodeCustomViewModel.cs

@@ -4,6 +4,9 @@ using System.Reactive.Disposables;
 using Artemis.Core;
 using Artemis.Core.Modules;
 using Artemis.Core.Services;
+using Artemis.Storage.Entities.Profile;
+using Artemis.UI.Shared.Services.NodeEditor;
+using Artemis.UI.Shared.Services.NodeEditor.Commands;
 using Artemis.UI.Shared.VisualScripting;
 using ReactiveUI;
 
@@ -12,29 +15,39 @@ namespace Artemis.VisualScripting.Nodes.DataModel.CustomViewModels;
 public class DataModelNodeCustomViewModel : CustomNodeViewModel
 {
     private readonly DataModelNode _node;
+    private readonly INodeEditorService _nodeEditorService;
     private ObservableCollection<Module>? _modules;
+    private DataModelPath? _dataModelPath;
+    private bool _updating;
 
-    public DataModelNodeCustomViewModel(DataModelNode node, ISettingsService settingsService) : base(node)
+    public DataModelNodeCustomViewModel(DataModelNode node, INodeScript script, ISettingsService settingsService, INodeEditorService nodeEditorService) : base(node, script)
     {
         _node = node;
+        _nodeEditorService = nodeEditorService;
 
         ShowFullPaths = settingsService.GetSetting("ProfileEditor.ShowFullPaths", true);
         ShowDataModelValues = settingsService.GetSetting("ProfileEditor.ShowDataModelValues", false);
 
         this.WhenActivated(d =>
         {
-            if (Modules != null)
+            // Set up extra modules
-                return;
-
-            Modules = new ObservableCollection<Module>();
             if (_node.Script?.Context is Profile scriptProfile && scriptProfile.Configuration.Module != null)
-                Modules.Add(scriptProfile.Configuration.Module);
+                Modules = new ObservableCollection<Module> {scriptProfile.Configuration.Module};
             else if (_node.Script?.Context is ProfileConfiguration profileConfiguration && profileConfiguration.Module != null)
-                Modules.Add(profileConfiguration.Module);
+                Modules = new ObservableCollection<Module> {profileConfiguration.Module};
 
-            _node.PropertyChanged += NodeOnPropertyChanged;
+            // Subscribe to node changes 
-            Disposable.Create(() => _node.PropertyChanged -= NodeOnPropertyChanged).DisposeWith(d);
+            _node.WhenAnyValue(n => n.Storage).Subscribe(UpdateDataModelPath).DisposeWith(d);
+            UpdateDataModelPath(_node.Storage);
+
+            Disposable.Create(() =>
+            {
+                _dataModelPath?.Dispose();
+                _dataModelPath = null;
+            }).DisposeWith(d);
         });
+
+        this.WhenAnyValue(vm => vm.DataModelPath).Subscribe(ApplyDataModelPath);
     }
 
     public PluginSetting<bool> ShowFullPaths { get; }
@@ -48,24 +61,46 @@ public class DataModelNodeCustomViewModel : CustomNodeViewModel
 
     public DataModelPath? DataModelPath
     {
-        get => _node.DataModelPath;
+        get => _dataModelPath;
-        set
+        set => RaiseAndSetIfChanged(ref _dataModelPath, value);
+    }
+
+    private void UpdateDataModelPath(DataModelPathEntity? entity)
     {
-            if (ReferenceEquals(_node.DataModelPath, value))
+        try
+        {
+            if (_updating)
                 return;
 
-            _node.DataModelPath?.Dispose();
+            _updating = true;
-            _node.DataModelPath = value;
-            _node.DataModelPath?.Save();
 
-            _node.Storage = _node.DataModelPath?.Entity;
+            DataModelPath? old = DataModelPath;
-            _node.UpdateOutputPin();
+            DataModelPath = entity != null ? new DataModelPath(entity) : null;
+            old?.Dispose();
         }
-    }
+        finally
-
-    private void NodeOnPropertyChanged(object? sender, PropertyChangedEventArgs e)
         {
-        if (e.PropertyName == nameof(DataModelNode.DataModelPath))
+            _updating = false;
-            this.RaisePropertyChanged(nameof(DataModelPath));
+        }
+    }
+
+    private void ApplyDataModelPath(DataModelPath? path)
+    {
+        try
+        {
+            if (_updating)
+                return;
+            if (path?.Path == _node.Storage?.Path)
+                return;
+
+            _updating = true;
+
+            path?.Save();
+            _nodeEditorService.ExecuteCommand(Script, new UpdateStorage<DataModelPathEntity>(_node, path?.Entity, "path"));
+        }
+        finally
+        {
+            _updating = false;
+        }
     }
 }

src/Avalonia/Artemis.VisualScripting/Nodes/DataModel/CustomViews/DataModelEventNodeCustomView.axaml.cs

@@ -1,10 +1,12 @@
+using Artemis.VisualScripting.Nodes.DataModel.CustomViewModels;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
+using Avalonia.ReactiveUI;
 
 namespace Artemis.VisualScripting.Nodes.DataModel.CustomViews
 {
-    public partial class DataModelEventNodeCustomView : UserControl
+    public partial class DataModelEventNodeCustomView : ReactiveUserControl<DataModelEventNodeCustomViewModel>
     {
         public DataModelEventNodeCustomView()
         {

src/Avalonia/Artemis.VisualScripting/Nodes/DataModel/CustomViews/DataModelNodeCustomView.axaml.cs

@@ -1,10 +1,12 @@
+using Artemis.VisualScripting.Nodes.DataModel.CustomViewModels;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
+using Avalonia.ReactiveUI;
 
 namespace Artemis.VisualScripting.Nodes.DataModel.CustomViews
 {
-    public partial class DataModelNodeCustomView : UserControl
+    public partial class DataModelNodeCustomView : ReactiveUserControl<DataModelNodeCustomViewModel>
     {
         public DataModelNodeCustomView()
         {

src/Avalonia/Artemis.VisualScripting/Nodes/DataModel/DataModelEventNode.cs

@@ -1,4 +1,5 @@
-using Artemis.Core;
+using System.ComponentModel;
+using Artemis.Core;
 using Artemis.Core.Events;
 using Artemis.Storage.Entities.Profile;
 using Artemis.VisualScripting.Nodes.DataModel.CustomViewModels;
@@ -24,6 +25,9 @@ public class DataModelEventNode : Node<DataModelPathEntity, DataModelEventNodeCu
         CycleValues.PinAdded += CycleValuesOnPinAdded;
         CycleValues.PinRemoved += CycleValuesOnPinRemoved;
         CycleValues.Add(CycleValues.CreatePin());
+
+        // Monitor storage for changes
+        StorageModified += (_, _) => UpdateDataModelPath();
     }
 
     public INodeScript? Script { get; set; }
@@ -31,12 +35,6 @@ public class DataModelEventNode : Node<DataModelPathEntity, DataModelEventNodeCu
     public InputPinCollection CycleValues { get; }
     public OutputPin Output { get; }
 
-    public DataModelPath? DataModelPath
-    {
-        get => _dataModelPath;
-        set => SetAndNotify(ref _dataModelPath, value);
-    }
-
     public override void Initialize(INodeScript script)
     {
         Script = script;
@@ -44,13 +42,13 @@ public class DataModelEventNode : Node<DataModelPathEntity, DataModelEventNodeCu
         if (Storage == null)
             return;
 
-        DataModelPath = new DataModelPath(Storage);
+        UpdateDataModelPath();
     }
 
     public override void Evaluate()
     {
         object? outputValue = null;
-        if (DataModelPath?.GetValue() is IDataModelEvent dataModelEvent)
+        if (_dataModelPath?.GetValue() is IDataModelEvent dataModelEvent)
         {
             if (dataModelEvent.LastTrigger > _lastTrigger)
             {
@@ -111,6 +109,14 @@ public class DataModelEventNode : Node<DataModelPathEntity, DataModelEventNodeCu
         }
     }
 
+
+    private void UpdateDataModelPath()
+    {
+        DataModelPath? old = _dataModelPath;
+        _dataModelPath = Storage != null ? new DataModelPath(Storage) : null;
+        old?.Dispose();
+    }
+
     private void ChangeCurrentType(Type type)
     {
         CycleValues.ChangeType(type);
@@ -140,5 +146,6 @@ public class DataModelEventNode : Node<DataModelPathEntity, DataModelEventNodeCu
     /// <inheritdoc />
     public void Dispose()
     {
+        _dataModelPath?.Dispose();
     }
 }

src/Avalonia/Artemis.VisualScripting/Nodes/DataModel/DataModelNode.cs

@@ -1,4 +1,5 @@
-using Artemis.Core;
+using System.ComponentModel;
+using Artemis.Core;
 using Artemis.Storage.Entities.Profile;
 using Artemis.VisualScripting.Nodes.DataModel.CustomViewModels;
 using Avalonia.Threading;
@@ -13,17 +14,12 @@ public class DataModelNode : Node<DataModelPathEntity, DataModelNodeCustomViewMo
     public DataModelNode() : base("Data Model", "Outputs a selectable data model value")
     {
         Output = CreateOutputPin(typeof(object));
+        StorageModified += (_, _) => UpdateDataModelPath();
     }
 
     public INodeScript? Script { get; private set; }
     public OutputPin Output { get; }
     
-    public DataModelPath? DataModelPath
-    {
-        get => _dataModelPath;
-        set => SetAndNotify(ref _dataModelPath, value);
-    }
-
     public override void Initialize(INodeScript script)
     {
         Script = script;
@@ -31,18 +27,26 @@ public class DataModelNode : Node<DataModelPathEntity, DataModelNodeCustomViewMo
         if (Storage == null)
             return;
 
-        DataModelPath = new DataModelPath(Storage);
+        UpdateDataModelPath();
-        DataModelPath.PathValidated += DataModelPathOnPathValidated;
+    }
 
+    private void UpdateDataModelPath()
+    {
+        DataModelPath? old = _dataModelPath;
+        old?.Dispose();
+
+        _dataModelPath = Storage != null ? new DataModelPath(Storage) : null;
+        if (_dataModelPath != null)
+            _dataModelPath.PathValidated += DataModelPathOnPathValidated;
         UpdateOutputPin();
     }
 
     public override void Evaluate()
     {
-        if (DataModelPath == null || !DataModelPath.IsValid)
+        if (_dataModelPath == null || !_dataModelPath.IsValid)
             return;
 
-        object? pathValue = DataModelPath.GetValue();
+        object? pathValue = _dataModelPath.GetValue();
         if (pathValue == null)
         {
             if (!Output.Type.IsValueType)
@@ -56,7 +60,7 @@ public class DataModelNode : Node<DataModelPathEntity, DataModelNodeCustomViewMo
 
     public void UpdateOutputPin()
     {
-        Type? type = DataModelPath?.GetPropertyType();
+        Type? type = _dataModelPath?.GetPropertyType();
         if (Numeric.IsTypeCompatible(type))
             type = typeof(Numeric);
         type ??= typeof(object);
@@ -73,6 +77,6 @@ public class DataModelNode : Node<DataModelPathEntity, DataModelNodeCustomViewMo
     /// <inheritdoc />
     public void Dispose()
     {
-        DataModelPath?.Dispose();
+        _dataModelPath?.Dispose();
     }
 }

src/Avalonia/Artemis.VisualScripting/Nodes/Easing/CustomViewModels/EasingTypeNodeCustomViewModel.cs

@@ -9,7 +9,7 @@ public class EasingTypeNodeCustomViewModel : CustomNodeViewModel
     private readonly EasingTypeNode _node;
     private NodeEasingViewModel _selectedEasingViewModel;
 
-    public EasingTypeNodeCustomViewModel(EasingTypeNode node) : base(node)
+    public EasingTypeNodeCustomViewModel(EasingTypeNode node, INodeScript script) : base(node, script)
     {
         _node = node;
         EasingViewModels = new ObservableCollection<NodeEasingViewModel>(Enum.GetValues(typeof(Easings.Functions)).Cast<Easings.Functions>().Select(e => new NodeEasingViewModel(e)));

src/Avalonia/Artemis.VisualScripting/Nodes/Maths/CustomViewModels/MathExpressionNodeCustomViewModel.cs

@@ -5,7 +5,7 @@ namespace Artemis.VisualScripting.Nodes.Maths.CustomViewModels;
 
 public class MathExpressionNodeCustomViewModel : CustomNodeViewModel
 {
-    public MathExpressionNodeCustomViewModel(INode node) : base(node)
+    public MathExpressionNodeCustomViewModel(INode node, INodeScript script) : base(node, script)
     {
     }
 }