internal override void DoAbortCurrentRequest()
{
if (cometRequest != null)
{
cometRequest.Abort();
cometRequest = null;
}
}
public static CometRequest Invoke(string url, ProcessMessageDelegate ProcessMessage, Action onComplete)
{
IFrameElement hiddenIFrame = (IFrameElement)Document.CreateElement("IFRAME");
CometRequest cometRequest = new CometRequest(hiddenIFrame);
Action notifyComplete = new Action
(
delegate()
{
cometRequest.NotifyComplete();
}
);
cometRequest.OnCometRequestComplete = onComplete;
Script.Literal("{0}.receive = function(message){{{1}(unescape(message));}};", hiddenIFrame, ProcessMessage);
Script.Literal("{0}.notifyComplete = {1};", hiddenIFrame, notifyComplete);
hiddenIFrame.Src = url;
hiddenIFrame.Style.Visibility = "hidden";
Document.Body.AppendChild(hiddenIFrame);
return cometRequest;
}
protected override void MakeRequest(string text, Dictionary parameters, int maxNumberOfItemsToGet)
{
string requestUrl = url + "?text=" + text.Escape() + "&maxNumberOfItemsToGet=" + maxNumberOfItemsToGet;
foreach (DictionaryEntry entry in parameters)
{
requestUrl += "&" + entry.Key.Escape() + "=" + entry.Value.ToString().Escape();
}
this.cometRequest = CometProxy.Invoke(
requestUrl,
delegate(string message)
{
if (this.OnSuggestionReceived != null) OnSuggestionReceived(
(Suggestion[])Script.Eval("(" + message + ")")
);
},
delegate()
{
if (this.OnAllSuggestionsReceived != null) OnAllSuggestionsReceived();
}
);
}
