/// <summary>
/// Run the generated XML file through the XSL transformation engine to create the file output.
/// </summary>
private async Task AsyncGenerateOutput()
{
using (CursorWait.New(this))
{
await Task.WhenAll(this.DoThreadSafeAsync(() =>
{
tsPrintPreview.Enabled = false;
tsSaveAsHtml.Enabled = false;
}),
cmdPrint.DoThreadSafeAsync(x => x.Enabled = false),
cmdSaveAsPdf.DoThreadSafeAsync(x => x.Enabled = false));
await SetDocumentText(await LanguageManager.GetStringAsync("String_Generating_Sheet"));
string strXslPath = Path.Combine(Utils.GetStartupPath, "sheets", _strSelectedSheet + ".xsl");
if (!File.Exists(strXslPath))
{
string strReturn = "File not found when attempting to load " + _strSelectedSheet +
Environment.NewLine;
Log.Debug(strReturn);
Program.ShowMessageBox(this, strReturn);
return;
}
XslCompiledTransform objXslTransform;
try
{
objXslTransform = await XslManager.GetTransformForFileAsync(strXslPath);
}
catch (ArgumentException)
{
string strReturn = "Last write time could not be fetched when attempting to load "
+ _strSelectedSheet +
Environment.NewLine;
Log.Debug(strReturn);
Program.ShowMessageBox(this, strReturn);
return;
}
catch (PathTooLongException)
{
string strReturn = "Last write time could not be fetched when attempting to load "
+ _strSelectedSheet +
Environment.NewLine;
Log.Debug(strReturn);
Program.ShowMessageBox(this, strReturn);
return;
}
catch (UnauthorizedAccessException)
{
string strReturn = "Last write time could not be fetched when attempting to load "
+ _strSelectedSheet +
Environment.NewLine;
Log.Debug(strReturn);
Program.ShowMessageBox(this, strReturn);
return;
}
catch (XsltException ex)
{
string strReturn = "Error attempting to load " + _strSelectedSheet + Environment.NewLine;
Log.Debug(strReturn);
Log.Error("ERROR Message = " + ex.Message);
strReturn += ex.Message;
Program.ShowMessageBox(this, strReturn);
return;
}
if (_objOutputGeneratorCancellationTokenSource.IsCancellationRequested)
{
return;
}
using (MemoryStream objStream = new MemoryStream())
{
using (XmlWriter objWriter = Utils.GetXslTransformXmlWriter(objStream))
{
await Task.Run(() => objXslTransform.Transform(_objCharacterXml, objWriter));
if (_objOutputGeneratorCancellationTokenSource.IsCancellationRequested)
{
return;
}
}
objStream.Position = 0;
// This reads from a static file, outputs to an HTML file, then has the browser read from that file. For debugging purposes.
//objXSLTransform.Transform("D:\\temp\\print.xml", "D:\\temp\\output.htm");
//webBrowser1.Navigate("D:\\temp\\output.htm");
if (GlobalSettings.PrintToFileFirst)
{
// The DocumentStream method fails when using Wine, so we'll instead dump everything out a temporary HTML file, have the WebBrowser load that, then delete the temporary file.
// Delete any old versions of the file
if (!await Utils.SafeDeleteFileAsync(_strTempSheetFilePath, true))
{
return;
}
// Read in the resulting code and pass it to the browser.
using (StreamReader objReader = new StreamReader(objStream, Encoding.UTF8, true))
{
string strOutput = await objReader.ReadToEndAsync();
File.WriteAllText(_strTempSheetFilePath, strOutput);
}
await this.DoThreadSafeAsync(() => UseWaitCursor = true);
await webViewer.DoThreadSafeAsync(
x => x.Url = new Uri("file:///" + _strTempSheetFilePath));
}
else
{
// Populate the browser using DocumentText (DocumentStream would cause issues due to stream disposal).
using (StreamReader objReader = new StreamReader(objStream, Encoding.UTF8, true))
{
string strOutput = await objReader.ReadToEndAsync();
await this.DoThreadSafeAsync(() => UseWaitCursor = true);
await webViewer.DoThreadSafeAsync(x => x.DocumentText = strOutput);
}
}
}
}
}
private async Task GenerateXml(CancellationToken token = default)
{
token.ThrowIfCancellationRequested();
CursorWait objCursorWait = await CursorWait.NewAsync(this, token : token);
try
{
await cmdExport.DoThreadSafeAsync(x => x.Enabled = false, token);
await cmdExportClose.DoThreadSafeAsync(x => x.Enabled = false, token);
try
{
token.ThrowIfCancellationRequested();
string exportSheetPath = Path.Combine(Utils.GetStartupPath, "export", _strXslt + ".xsl");
XslCompiledTransform objXslTransform;
try
{
objXslTransform
= await XslManager
.GetTransformForFileAsync(exportSheetPath); // Use the path for the export sheet.
}
catch (ArgumentException)
{
token.ThrowIfCancellationRequested();
string strReturn = "Last write time could not be fetched when attempting to load " + _strXslt +
Environment.NewLine;
Log.Debug(strReturn);
await SetTextToWorkerResult(strReturn, token);
return;
}
catch (PathTooLongException)
{
token.ThrowIfCancellationRequested();
string strReturn = "Last write time could not be fetched when attempting to load " + _strXslt +
Environment.NewLine;
Log.Debug(strReturn);
await SetTextToWorkerResult(strReturn, token);
return;
}
catch (UnauthorizedAccessException)
{
token.ThrowIfCancellationRequested();
string strReturn = "Last write time could not be fetched when attempting to load " + _strXslt +
Environment.NewLine;
Log.Debug(strReturn);
await SetTextToWorkerResult(strReturn, token);
return;
}
catch (XsltException ex)
{
token.ThrowIfCancellationRequested();
string strReturn = "Error attempting to load " + _strXslt + Environment.NewLine;
Log.Debug(strReturn);
Log.Error("ERROR Message = " + ex.Message);
strReturn += ex.Message;
await SetTextToWorkerResult(strReturn, token);
return;
}
token.ThrowIfCancellationRequested();
XmlWriterSettings objSettings = objXslTransform.OutputSettings?.Clone();
if (objSettings != null)
{
objSettings.CheckCharacters = false;
objSettings.ConformanceLevel = ConformanceLevel.Fragment;
}
string strText;
using (MemoryStream objStream = new MemoryStream())
{
using (XmlWriter objWriter = objSettings != null
? XmlWriter.Create(objStream, objSettings)
: Utils.GetXslTransformXmlWriter(objStream))
{
token.ThrowIfCancellationRequested();
await Task.Run(() => objXslTransform.Transform(_objCharacterXml, objWriter), token);
}
token.ThrowIfCancellationRequested();
objStream.Position = 0;
// Read in the resulting code and pass it to the browser.
using (StreamReader objReader = new StreamReader(objStream, Encoding.UTF8, true))
strText = await objReader.ReadToEndAsync();
}
token.ThrowIfCancellationRequested();
await SetTextToWorkerResult(strText, token);
}
finally
{
await cmdExport.DoThreadSafeAsync(x => x.Enabled = true, token);
await cmdExportClose.DoThreadSafeAsync(x => x.Enabled = true, token);
}
}
finally
{
await objCursorWait.DisposeAsync();
}
}
