Add project files.

2022-11-01 15:26:08 +00:00
parent daa7b59f22
commit 7e4f880821
408 changed files with 16863 additions and 0 deletions
@@ -0,0 +1,77 @@
+using System;
+using System.Collections;
+using System.Linq;
+using System.Reactive.Disposables;
+using System.Runtime.CompilerServices;
+
+namespace TheXamlGuy.Framework.Core
+{
+    public class Disposer : IDisposer
+    {
+        private readonly ConditionalWeakTable<object, CompositeDisposable> subjects = new();
+
+        public void Add(object subject, params object[] objects)
+        {
+            CompositeDisposable disposables = subjects.GetOrCreateValue(subject);
+            foreach (IDisposable disposable in objects.OfType<IDisposable>())
+            {
+                disposables.Add(disposable);
+            }
+
+            foreach (object notDisposable in objects.Where(x => x is not IDisposable))
+            {
+                disposables.Add(Disposable.Create(() => FromNotDisposable(notDisposable)));
+            }
+        }
+
+        private void FromNotDisposable(object target)
+        {
+            if (target is IEnumerable enumerableTarget)
+            {
+                foreach (object? item in enumerableTarget)
+                {
+                    FromNotDisposable(item);
+                }
+            }
+
+            if (target is IDisposable disposableTarget)
+            {
+                disposableTarget.Dispose();
+            }
+
+            if (target is not IDisposable)
+            {
+                Dispose(target);
+            }
+        }
+
+        public TDisposable Replace<TDisposable>(object subject, IDisposable disposer, TDisposable replacement) where TDisposable : IDisposable
+        {
+            CompositeDisposable disposables = subjects.GetOrCreateValue(subject);
+            if (disposer is not null)
+            {
+                disposables.Remove(disposer);
+            }
+
+            disposables.Add(replacement);
+            return replacement;
+        }
+
+        public void Remove(object subject, IDisposable disposer)
+        {
+            CompositeDisposable disposables = subjects.GetOrCreateValue(subject);
+            if (disposer is not null)
+            {
+                disposables.Remove(disposer);
+            }
+        }
+
+        public void Dispose(object subject)
+        {
+            if (subjects.TryGetValue(subject, out CompositeDisposable? disposables))
+            {
+                disposables?.Dispose();
+            }
+        }
+    }
+}