// Token: 0x06002CE1 RID: 11489 RVA: 0x000CA808 File Offset: 0x000C8A08
private object GetPageAsyncDelegate(object arg)
{
FixedDocument.GetPageAsyncRequest getPageAsyncRequest = (FixedDocument.GetPageAsyncRequest)arg;
PageContent pageContent = getPageAsyncRequest.PageContent;
if (!this._pendingPages.Contains(pageContent))
{
this._pendingPages.Add(pageContent);
pageContent.GetPageRootCompleted += this.OnGetPageRootCompleted;
pageContent.GetPageRootAsync(false);
if (getPageAsyncRequest.Cancelled)
{
pageContent.GetPageRootAsyncCancel();
}
}
return(null);
}
// Token: 0x06002CBE RID: 11454 RVA: 0x000C9C20 File Offset: 0x000C7E20
internal void GetPageAsync(int pageNumber, object userState)
{
if (pageNumber < 0)
{
throw new ArgumentOutOfRangeException("pageNumber", SR.Get("IDPNegativePageNumber"));
}
if (userState == null)
{
throw new ArgumentNullException("userState");
}
if (pageNumber < this.Pages.Count)
{
PageContent pageContent = this.Pages[pageNumber];
FixedDocument.GetPageAsyncRequest getPageAsyncRequest = new FixedDocument.GetPageAsyncRequest(pageContent, pageNumber, userState);
this._asyncOps[userState] = getPageAsyncRequest;
DispatcherOperationCallback method = new DispatcherOperationCallback(this.GetPageAsyncDelegate);
base.Dispatcher.BeginInvoke(DispatcherPriority.Background, method, getPageAsyncRequest);
return;
}
this._NotifyGetPageAsyncCompleted(DocumentPage.Missing, pageNumber, null, false, userState);
}
// Token: 0x06002CE2 RID: 11490 RVA: 0x000CA868 File Offset: 0x000C8A68
private void OnGetPageRootCompleted(object sender, GetPageRootCompletedEventArgs args)
{
PageContent pageContent = (PageContent)sender;
pageContent.GetPageRootCompleted -= this.OnGetPageRootCompleted;
this._pendingPages.Remove(pageContent);
ArrayList arrayList = new ArrayList();
IEnumerator <KeyValuePair <object, FixedDocument.GetPageAsyncRequest> > enumerator = this._asyncOps.GetEnumerator();
try
{
while (enumerator.MoveNext())
{
KeyValuePair <object, FixedDocument.GetPageAsyncRequest> keyValuePair = enumerator.Current;
FixedDocument.GetPageAsyncRequest value = keyValuePair.Value;
if (value.PageContent == pageContent)
{
ArrayList arrayList2 = arrayList;
keyValuePair = enumerator.Current;
arrayList2.Add(keyValuePair.Key);
DocumentPage page = DocumentPage.Missing;
if (!value.Cancelled && !args.Cancelled && args.Error == null)
{
FixedPage result = args.Result;
Size fixedSize = this.ComputePageSize(result);
page = new FixedDocumentPage(this, result, fixedSize, this.Pages.IndexOf(pageContent));
}
this._NotifyGetPageAsyncCompleted(page, value.PageNumber, args.Error, value.Cancelled, value.UserState);
}
}
}
finally
{
foreach (object key in arrayList)
{
this._asyncOps.Remove(key);
}
}
}
