protected virtual void RaiseLoadCompleted(XslFOViewerEventArgs eventArgs)
{
eventArgs.ErrorEvents = new List <XslFOViewerEventArgs>();
eventArgs.ErrorEvents.AddRange(_errorEventList);
LoadCompleted.Raise(this, eventArgs);
}
protected virtual void RaiseViewerError(XslFOViewerEventArgs eventArgs)
{
_loadTimer.Stop();
LogItem("Load Stopped due to Error [{0}s].", _loadTimer.Elapsed.TotalSeconds);
LogItem("Error: {0}", eventArgs.Message);
//Track the Error Events so we can also pass them along at LoadCompleted
//for consumers that don't want to trap every event thrown!
_errorEventList.Add(eventArgs);
//Finally update the Tracking Flag
_loadingInProgress = false;
//Now raise the Error for all listeners
ViewerError.Raise(this, eventArgs);
}
private void AbstractControl_LoadError(object sender, XslFOViewerEventArgs e)
{
//Force UI update of the current LoadStatus
SetLoadingState(this.LoadStatus);
}
//Private helper mehod to manage events for Loading
private void TriggerLoadFile(XslFORenderFileOutput renderedOutput)
{
try
{
if (this.LoadStatus == XslFOViewerControlState.Unavailable)
{
//Process ERROR / UNAVAILABLE State
//Raise Error because the Viewer Control is not fully initialized.
var eventArg = new XslFOViewerEventArgs("Viewer Error [{0}s]: Pdf Viewer Control not initialized [Status={1}].".FormatArgs(_loadTimer.Elapsed.TotalSeconds, this.LoadStatus.ToString()));
LogItem(eventArg.Message);
RaiseViewerError(eventArg);
//RaiseLoadCompleted(eventArg);
//Short Circuit if our current Load Status is UNAVAILALBE because we cannot be initialized,
// and therefore should not run anything.
return;
}
else
{
//Process NORMALLY
//Update our reference to the rendered output
this.RenderedOutput = renderedOutput;
//Process the new rendered output
if (renderedOutput != null)
{
FileInfo pdfBinaryFileInfo = renderedOutput.PdfFileInfo;
pdfBinaryFileInfo.Refresh();
if (pdfBinaryFileInfo != null && pdfBinaryFileInfo.Exists)
{
//Call the Abstract Method (implemented by Inheritec Controls) to load the File!
LoadFile(pdfBinaryFileInfo);
//ONLY update to Load Completed if the LoadFile abstract method executed successfully!
this.LoadStatus = XslFOViewerControlState.LoadCompleted;
}
else
{
throw new ArgumentNullException("Pdf Binary file is null or does not exist; a valid file must be specified [{0}].".FormatArgs(pdfBinaryFileInfo.FullName));
}
var eventArg = new XslFOViewerEventArgs("Load Completed [{0}s].\nPdf File Loaded: [{1}]".FormatArgs(_loadTimer.Elapsed.TotalSeconds, pdfBinaryFileInfo.FullName), renderedOutput);
LogItem(eventArg.Message);
RaiseLoadCompleted(eventArg);
}
else
{
this.LoadStatus = XslFOViewerControlState.Unloaded;
MessageBox.Show(this.ParentForm, "Rendered Output is null or empty!");
}
}
}
catch (Exception exc)
{
this.LoadStatus = XslFOViewerControlState.Unloaded;
RaiseViewerError(new XslFOViewerEventArgs("Error occurred Loading the Rendered Output Pdf File; {0}; Pdf Output File Path [{1}]".FormatArgs(exc.GetMessages(), renderedOutput.PdfFileInfo.FullName), renderedOutput.XslFODocument.ToString()));
}
finally
{
_loadTimer.Stop();
//Finally update the Tracking Flag
_loadingInProgress = false;
}
}
protected virtual void RaiseLoadStarting(XslFOViewerEventArgs eventArgs)
{
LoadStarting.Raise(this, eventArgs);
}
