Is there any demo to use DocumentTemplate? Thanks

[ZSYMAX]

I want to use DocumentTemplate like the DockXamlSample,but it looks like not work.

<!-- Documents Pane -->

              <DocumentDock x:Name="DocumentsPane"
                            Id="DocumentsPane"
                            CanCreateDocument="True"
                            VisibleDockables="{Binding Documents}">
                <DocumentDock.DocumentTemplate>
                  <DocumentTemplate x:DataType="doc:Document">
                    <DataTemplate>
                      <StackPanel>
                        <TextBlock Text="{Binding Title}"/>
                        <TextBlock Text="{Binding Id}"/>
                      </StackPanel>
                    </DataTemplate>
                  </DocumentTemplate>
                </DocumentDock.DocumentTemplate>
              </DocumentDock>

my VM code like this:

ctor()
{
     Documents = new BindableCollection<Document>();
     Documents.Add(new DocumentViewModel());
}
 private BindableCollection<Document> _documents;
 public BindableCollection<Document> Documents { get => _documents; set => Set(ref _documents, value); }

DocumentViewModel like this

public class DocumentViewModel : Document
{
    public DocumentViewModel()
    {
        Id = "Doc1";
        Title = "Doc1";
    }
}

[wieslawsoltes]

https://github.com/wieslawsoltes/AvaloniaInside.MonoGame/tree/DockDemo/src/AvaloniaInside.MonoGameExample/AvaloniaInside.MonoGameExample

[MihaMarkic]

This might not work when binding to VisibleDockables property or am I missing something (since it's triggered only on DocumentCreate command)?
It'd be nice if DocumentTemplate is used automatically even with bound VisibleDockables.
Or is binding to VisibleDockables not a right way?

[MihaMarkic]

I just went ahead derived my class from DocumentDock, added a Documents property and handling its notifications to add/removed documents. Would you be interested in a pull request of this? I guess this could be an alternate DocumentDock.

[wieslawsoltes]

Can you show the code?

[MihaMarkic]

Sure, something like this, I'm still exploring though.

public class MyDocumentDock : DocumentDock
{
    public static readonly DirectProperty<MyDocumentDock, IAvaloniaList<Document>?> DocumentsProperty =
        AvaloniaProperty.RegisterDirect<MyDocumentDock, IAvaloniaList<Document>?>(nameof(Documents), o => o.Documents, (o, v) => o.Documents = v);
    IAvaloniaList<Document>? documents;

    [DataMember(IsRequired = false, EmitDefaultValue = true)]
    [JsonPropertyName("Documents")]
    public IAvaloniaList<Document>? Documents
    {
        get => documents;
        set => SetAndRaise(DocumentsProperty, ref documents, value);
    }
    protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
    {
        if (change.Property == DocumentsProperty)
        {
            if (change.OldValue is IAvaloniaList<Document> old)
            {
                old.CollectionChanged -= Documents_CollectionChanged;
            }
            if (change.NewValue is IAvaloniaList<Document> newValue)
            {
                newValue.CollectionChanged += Documents_CollectionChanged;
            }
        }
        base.OnPropertyChanged(change);
    }

    void Documents_CollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
    {
        if (e.Action == NotifyCollectionChangedAction.Add)
        {
            if (DocumentTemplate is null)
            {
                return;
            }

            var document = e.NewItems?.OfType<Document>().SingleOrDefault();
            if (document is not null)
            {
                document.Content = DocumentTemplate.Content;
                Factory?.AddDockable(this, document);
                Factory?.SetActiveDockable(document);
                Factory?.SetFocusedDockable(this, document);
            }
        }
        else if (e.Action == NotifyCollectionChangedAction.Remove)
        {
            var document = e.OldItems?.OfType<Document>().SingleOrDefault();
            if (document is not null)
            {
                Owner!.Factory!.CloseDockable(document);
            }
        }
    }
}

[MihaMarkic]

And update to synchronize VisibleDockables and Documents when closed by user interaction

public class MyDocumentDock : DocumentDock
{
    public static readonly DirectProperty<MyDocumentDock, IAvaloniaList<Document>?> DocumentsProperty =
        AvaloniaProperty.RegisterDirect<MyDocumentDock, IAvaloniaList<Document>?>(nameof(Documents), o => o.Documents, (o, v) => o.Documents = v);
    IAvaloniaList<Document>? documents;
    public MyDocumentDock()
    {
        ((IAvaloniaList<IDockable>)VisibleDockables!).CollectionChanged += VisibleDockables_CollectionChanged; ;
    }
    [DataMember(IsRequired = false, EmitDefaultValue = true)]
    [JsonPropertyName("Documents")]
    public IAvaloniaList<Document>? Documents
    {
        get => documents;
        set => SetAndRaise(DocumentsProperty, ref documents, value);
    }
    protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
    {
        if (change.Property == DocumentsProperty)
        {
            if (change.OldValue is IAvaloniaList<Document> old)
            {
                old.CollectionChanged -= Documents_CollectionChanged;
            }
            if (change.NewValue is IAvaloniaList<Document> newValue)
            {
                newValue.CollectionChanged += Documents_CollectionChanged;
            }
        }
        base.OnPropertyChanged(change);
    }

    void VisibleDockables_CollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
    {
        if (e.Action == NotifyCollectionChangedAction.Remove)
        {
            var document = e.OldItems?.OfType<Document>().Single()!;
            Documents!.Remove(document);
        }
    }

    void Documents_CollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
    {
        if (e.Action == NotifyCollectionChangedAction.Add)
        {
            if (DocumentTemplate is null)
            {
                return;
            }

            var document = e.NewItems?.OfType<Document>().SingleOrDefault();
            if (document is not null)
            {
                document.Content = DocumentTemplate.Content;
                Factory?.AddDockable(this, document);
                Factory?.SetActiveDockable(document);
                Factory?.SetFocusedDockable(this, document);
            }
        }
        else if (e.Action == NotifyCollectionChangedAction.Remove)
        {
            var document = e.OldItems?.OfType<Document>().SingleOrDefault();
            if (document is not null)
            {
                Owner!.Factory!.CloseDockable(document);
            }
        }
    }
}

[damian-666]

did this work? @MihaMarkic .. dock branch isn't merge upl...

i can sponsor if theis is easier.. i would like it to bind to a document. This branch is [5 commits ahead of] i last time i treid it was harder.. i might alsy try to merge in
(wieslawsoltes/AvaloniaInside.MonoGame@AvaloniaInside:AvaloniaInside.MonoGame:main...DockDemo), 3 commits behind
AvaloniaInside/AvaloniaInside.MonoGame:main.wieslawsoltes/AvaloniaInside.MonoGame@DockDemo...AvaloniaInside:AvaloniaInside.MonoGame:main

[damian-666]

also for another project i wnat to try to put Bepu physics in tit .. its more important now for me than monogame.. the demos use OpenTk ..i dont care if its directx or opengl..

https://github.com/SamboyCoding/OpenTKAvalonia it not been maintain a while..

https://github.com/AvaloniaUI/Avalonia/blob/7842883961d094e08e9def7f30cf32fd573179c7/samples/ControlCatalog/Pages/OpenGlPage.xaml.cs