Pull down UnityNetworkTask.

Assets/Cryville/Common/Unity/NetworkTaskWorker.cs

@@ -92,15 +92,6 @@ namespace Cryville.Common.Unity {
 	/// A network task.
 	/// </summary>
 	public abstract class NetworkTask {
-		protected NetworkTask(string uri) {
-			Uri = uri;
-		}
-
-		/// <summary>
-		/// The URI of the resource.
-		/// </summary>
-		public string Uri { get; private set; }
-
 		/// <summary>
 		/// Whether the task is cancelled.
 		/// </summary>
@@ -109,40 +100,56 @@ namespace Cryville.Common.Unity {
 		/// <summary>
 		/// Cancels the task.
 		/// </summary>
-		public virtual void Cancel() {
+		public void Cancel() {
 			Cancelled = true;
+			OnCancel();
 		}
+		protected virtual void OnCancel() { }
 
-#if UNITY_5_4_OR_NEWER
-		protected UnityWebRequest www;
-		
 		/// <summary>
 		/// Starts the task.
 		/// </summary>
-		public virtual void Start() {
-			www = new UnityWebRequest(Uri);
-			www.SendWebRequest();
-		}
+		public abstract void Start();
 		/// <summary>
 		/// Gets whether the task is done.
 		/// </summary>
 		/// <returns>Whether the task is done.</returns>
-		public virtual bool Done() {
+		public abstract bool Done();
+	}
+
+	/// <summary>
+	/// A Unity network task.
+	/// </summary>
+	public abstract class UnityNetworkTask : NetworkTask {
+		protected UnityNetworkTask(string uri) {
+			Uri = uri;
+		}
+
+		/// <summary>
+		/// The URI of the resource.
+		/// </summary>
+		public string Uri { get; private set; }
+
+#if UNITY_5_4_OR_NEWER
+		protected UnityWebRequest www;
+
+		/// <inheritdoc />
+		public override void Start() {
+			www = new UnityWebRequest(Uri);
+			www.SendWebRequest();
+		}
+		/// <inheritdoc />
+		public override bool Done() {
 			if (!www.isDone) return false;
 			return true;
 		}
 #else
 		protected WWW www;
-		/// <summary>
-		/// Starts the task.
-		/// </summary>
+		/// <inheritdoc />
 		public virtual void Start() {
 			www = new WWW(Uri);
 		}
-		/// <summary>
-		/// Gets whether the task is done.
-		/// </summary>
-		/// <returns>Whether the task is done.</returns>
+		/// <inheritdoc />
 		public virtual bool Done() {
 			if (!www.isDone) return false;
 			return true;
@@ -150,9 +157,9 @@ namespace Cryville.Common.Unity {
 #endif
 	}
 	/// <summary>
-	/// A <see cref="NetworkTask" /> that loads a texture.
+	/// A <see cref="UnityNetworkTask" /> that loads a texture.
 	/// </summary>
-	public class LoadTextureTask : NetworkTask {
+	public class LoadTextureTask : UnityNetworkTask {
 		/// <summary>
 		/// Creates an instance of the <see cref="LoadTextureTask" /> class.
 		/// </summary>