private LoaderBase CreateLoaderPrivate()
{
LoaderBase loader = this.CreateLoader();
loader.ContentLoader = this;
return(loader);
}
public ContentLoaderBaseAsyncResult(object asyncState, LoaderBase loader, AsyncCallback callback)
{
this.AsyncState = asyncState;
this.Loader = loader;
this.Lock = new object();
this.Callback = callback;
this.AsyncWaitHandle = new AutoResetEvent(false);
}
public ContentLoaderBaseAsyncResult(object asyncState, LoaderBase loader, AsyncCallback callback)
{
this.AsyncState = asyncState;
this.Loader = loader;
this.Lock = new object();
this.Callback = callback;
this.AsyncWaitHandle = new AutoResetEvent(false);
}
/// <summary>
/// Begins asynchronous loading of the content for the specified target URI.
/// </summary>
/// <param name = "targetUri">The URI to load content for.</param>
/// <param name = "currentUri">The URI that is currently loaded.</param>
/// <param name = "userCallback">The method to call when the content finishes loading.</param>
/// <param name = "asyncState">An object for storing custom state information.</param>
/// <returns>An object that stores information about the asynchronous operation.</returns>
public IAsyncResult BeginLoad(Uri targetUri, Uri currentUri, AsyncCallback userCallback, object asyncState)
{
LoaderBase loader = this.CreateLoaderPrivate();
ContentLoaderBaseAsyncResult result = new ContentLoaderBaseAsyncResult(asyncState, loader, userCallback);
result.BeginLoadCompleted = false;
loader.Result = result;
lock (result.Lock)
{
loader.Load(targetUri, currentUri);
result.BeginLoadCompleted = true;
return(result);
}
}