New typed pair.

KristofferStrube · Jun 13, 2024 · da2fab4 · da2fab4
1 parent 8d913a3
commit da2fab4
Showing 1 changed file with 72 additions and 0 deletions.
diff --git a/src/KristofferStrube.Blazor.WebIDL/Pair.cs b/src/KristofferStrube.Blazor.WebIDL/Pair.cs
@@ -61,6 +61,78 @@ public async Task<TValue> GetValueAsync<TValue>() where TValue : IJSCreatable<TV
         return await TValue.CreateAsync(JSRuntime, await helper.InvokeAsync<IJSObjectReference>("getAttribute", JSReference, 1), options);
     }
 
+    /// <inheritdoc/>
+    public async ValueTask DisposeAsync()
+    {
+        if (helperTask.IsValueCreated)
+        {
+            IJSObjectReference module = await helperTask.Value;
+            await module.DisposeAsync();
+        }
+        await IJSWrapper.DisposeJSReference(this);
+        GC.SuppressFinalize(this);
+    }
+}
+
+[IJSWrapperConverter]
+public class Pair<TKey, TValue> : IJSCreatable<Pair<TKey, TValue>> where TKey : IJSCreatable<TKey> where TValue : IJSCreatable<TValue>
+{
+    /// <summary>
+    /// A lazily loaded task that evaluates to a helper module instance from the Blazor.WebIDL library.
+    /// </summary>
+    protected readonly Lazy<Task<IJSObjectReference>> helperTask;
+
+    /// <inheritdoc/>
+    public IJSObjectReference JSReference { get; }
+    /// <inheritdoc/>
+    public IJSRuntime JSRuntime { get; }
+
+    /// <inheritdoc/>
+    public bool DisposesJSReference { get; }
+
+    /// <inheritdoc/>
+    public static async Task<Pair<TKey, TValue>> CreateAsync(IJSRuntime jSRuntime, IJSObjectReference jSReference)
+    {
+        return await Task.FromResult(new Pair<TKey, TValue>(jSRuntime, jSReference, new()));
+    }
+
+    /// <inheritdoc/>
+    public static async Task<Pair<TKey, TValue>> CreateAsync(IJSRuntime jSRuntime, IJSObjectReference jSReference, CreationOptions options)
+    {
+        return await Task.FromResult(new Pair<TKey, TValue>(jSRuntime, jSReference, options));
+    }
+
+    /// <inheritdoc cref="CreateAsync(IJSRuntime, IJSObjectReference, CreationOptions)" />
+    protected Pair(IJSRuntime jSRuntime, IJSObjectReference jSReference, CreationOptions options)
+    {
+        helperTask = new(jSRuntime.GetHelperAsync);
+        JSRuntime = jSRuntime;
+        JSReference = jSReference;
+        DisposesJSReference = options.DisposesJSReference;
+    }
+
+    public async Task<TKey> GetKeyAsync()
+    {
+        IJSObjectReference helper = await helperTask.Value;
+        CreationOptions options = new()
+        {
+            DisposesJSReference = true
+        };
+
+        return await TKey.CreateAsync(JSRuntime, await helper.InvokeAsync<IJSObjectReference>("getAttribute", JSReference, 0), options);
+    }
+
+    public async Task<TValue> GetValueAsync()
+    {
+        IJSObjectReference helper = await helperTask.Value;
+        CreationOptions options = new()
+        {
+            DisposesJSReference = true
+        };
+
+        return await TValue.CreateAsync(JSRuntime, await helper.InvokeAsync<IJSObjectReference>("getAttribute", JSReference, 1), options);
+    }
+
     /// <inheritdoc/>
     public async ValueTask DisposeAsync()
     {