Custom Region Adapters

Region Adapters

GridRegionAdapter

using Avalonia.Controls;
using Prism.Regions;

namespace SuessLabs.PrismAvalonia.RegionAdapters;

[System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
public class GridRegionAdapter : RegionAdapterBase<Grid>
{
    public GridRegionAdapter(IRegionBehaviorFactory regionBehaviorFactory)
      : base(regionBehaviorFactory)
    {
    }

    protected override void Adapt(IRegion region, Grid regionTarget)
    {
        region.Views.CollectionChanged += (sender, e) =>
        {
            if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add)
            {
                foreach (Control item in e.NewItems)
                {
                    if (e.NewItems != null)
                        regionTarget.Children.Add(item);
                }
            }

            if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove)
            {
                foreach (Control item in e.OldItems)
                {
                    if (e.OldItems != null)
                        regionTarget.Children.Remove(item);
                }
            }
        };
    }

    protected override IRegion CreateRegion() => new SingleActiveRegion() { };
}

StackPanelRegionAdapter

using Avalonia.Controls;
using Prism.Regions;

namespace SuessLabs.PrismAvalonia.RegionAdapters;

[System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
public class StackPanelRegionAdapter : RegionAdapterBase<StackPanel>
{
    public StackPanelRegionAdapter(IRegionBehaviorFactory regionBehaviorFactory)
      : base(regionBehaviorFactory)
    {
    }

    protected override void Adapt(IRegion region, StackPanel regionTarget)
    {
        region.Views.CollectionChanged += (sender, e) =>
        {
            if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add)
            {
                foreach (Control item in e.NewItems)
                {
                    if (e.NewItems != null)
                        regionTarget.Children.Add(item);
                }
            }

            if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove)
            {
                foreach (Control item in e.OldItems)
                {
                    if (e.OldItems != null)
                        regionTarget.Children.Remove(item);
                }
            }
        };
    }

    protected override IRegion CreateRegion() => new SingleActiveRegion() { };
}