private void LoadDescriptionSection(XDocument fileDocument, bool loadBinaryItems = true)
{
if (fileDocument == null)
{
throw new ArgumentNullException("fileDocument");
}
if (fileDocument.Root == null)
{
throw new NullReferenceException("LoadDescriptionSection: Root is null");
}
XElement xTextDescription = fileDocument.Root.Element(_fileNameSpace + Fb2TextDescriptionElementName);
// attempt to load some bad FB2 with wrong namespace
XNamespace namespaceUsed = _fileNameSpace;
if (xTextDescription == null)
{
namespaceUsed = "";
xTextDescription = fileDocument.Root.Element(Fb2TextDescriptionElementName);
}
if (xTextDescription != null)
{
// Load Title info
XElement xTitleInfo = xTextDescription.Element(namespaceUsed + TitleInfoElementName);
if (xTitleInfo != null)
{
_titleInfo.Namespace = namespaceUsed;
try
{
_titleInfo.Load(xTitleInfo);
}
catch (Exception ex)
{
Debug.WriteLine("Error reading title info : {0}", ex.Message);
}
}
// Load Src Title info
XElement xSrcTitleInfo = xTextDescription.Element(namespaceUsed + SrcTitleInfoElementName);
if (xSrcTitleInfo != null)
{
_srcTitleInfo.Namespace = _fileNameSpace;
try
{
_srcTitleInfo.Load(xSrcTitleInfo);
}
catch (Exception ex)
{
Debug.WriteLine("Error reading source title info : {0}", ex.Message);
}
}
// Load document info
XElement xDocumentInfo = xTextDescription.Element(namespaceUsed + DocumentInfoElementName);
if (xDocumentInfo != null)
{
_documentInfo.Namespace = _fileNameSpace;
try
{
_documentInfo.Load(xDocumentInfo);
}
catch (Exception ex)
{
Debug.WriteLine("Error reading document info : {0}", ex.Message);
}
}
// Load publish info
XElement xPublishInfo = xTextDescription.Element(namespaceUsed + ItemPublishInfo.PublishInfoElementName);
if (xPublishInfo != null)
{
_publishInfo.Namespace = _fileNameSpace;
try
{
_publishInfo.Load(xPublishInfo);
}
catch (Exception ex)
{
Debug.WriteLine("Error reading publishing info : {0}", ex.Message);
}
}
XElement xCustomInfo = xTextDescription.Element(namespaceUsed + ItemCustomInfo.CustomInfoElementName);
if (xCustomInfo != null)
{
var custElement = new ItemCustomInfo {Namespace = _fileNameSpace};
try
{
custElement.Load(xCustomInfo);
_customInfo.Add(custElement);
}
catch (Exception ex)
{
Debug.WriteLine("Error reading custom info : {0}", ex.Message);
}
}
IEnumerable<XElement> xInstructions = xTextDescription.Elements(xTextDescription.Name.Namespace + "output");
int outputCount = 0;
_output.Clear();
foreach (var xInstruction in xInstructions)
{
// only two elements allowed by scheme
if (outputCount > 1)
{
break;
}
var outp = new ShareInstructionType { Namespace = namespaceUsed };
try
{
outp.Load(xInstruction);
_output.Add(outp);
}
catch (Exception ex)
{
Debug.WriteLine("Error reading output instructions : {0}", ex);
}
finally
{
outputCount++;
}
}
if (loadBinaryItems && _titleInfo.Cover != null)
{
foreach (InlineImageItem coverImag in _titleInfo.Cover.CoverpageImages)
{
if (string.IsNullOrEmpty(coverImag.HRef))
{
continue;
}
string coverref = coverImag.HRef.Substring(0, 1) == "#" ? coverImag.HRef.Substring(1) : coverImag.HRef;
IEnumerable<XElement> xBinaryes =
fileDocument.Root.Elements(_fileNameSpace + Fb2BinaryElementName).Where(
cov => ((cov.Attribute("id") != null) && (cov.Attribute("id").Value == coverref)));
foreach (var binarye in xBinaryes)
{
var item = new BinaryItem();
try
{
item.Load(binarye);
}
catch (Exception)
{
continue;
}
// add just unique IDs to fix some invalid FB2s
if (!_binaryObjects.ContainsKey(item.Id))
{
_binaryObjects.Add(item.Id, item);
}
}
}
}
}
}
public void Load(XElement xElement)
{
if (xElement == null)
{
throw new ArgumentNullException("xElement");
}
parts.Clear();
IEnumerable<XElement> xParts = xElement.Elements(fileNameSpace + "part");
foreach (var xPart in xParts)
{
ShareInstructionType part = new ShareInstructionType {Namespace = fileNameSpace};
try
{
part.Load(xPart);
parts.Add(part);
}
catch (Exception)
{
continue;
}
}
Name = null;
XAttribute xName = xElement.Attribute("name");
if (xName == null)
{
throw new Exception("name is required attribute - absent");
}
Name = xName.Value;
Create = GenerationInstructionEnum.Unknown;
XAttribute xCreate = xElement.Attribute("create");
if (xCreate != null)
{
switch (xCreate.Value)
{
case "require":
Create = GenerationInstructionEnum.Require;
break;
case "allow":
Create = GenerationInstructionEnum.Allow;
break;
case "deny":
Create = GenerationInstructionEnum.Deny;
break;
default:
Debug.Fail(string.Format("Invalid instruction type : {0}", xCreate.Value));
break;
}
}
Price = null;
XAttribute xPrice = xElement.Attribute("price");
if ((xPrice != null) && !string.IsNullOrEmpty(xPrice.Value))
{
float val;
if (float.TryParse(xPrice.Value, out val))
{
Price = val;
}
}
}
public void Load(XElement xElement)
{
if (xElement == null)
{
throw new ArgumentNullException(nameof(xElement));
}
_parts.Clear();
IEnumerable <XElement> xParts = xElement.Elements(_fileNameSpace + "part");
foreach (var xPart in xParts)
{
ShareInstructionType part = new ShareInstructionType {
Namespace = _fileNameSpace
};
try
{
part.Load(xPart);
_parts.Add(part);
}
catch (Exception)
{
// ignored
}
}
Name = null;
XAttribute xName = xElement.Attribute("name");
if (xName == null)
{
throw new Exception("name is required attribute - absent");
}
Name = xName.Value;
Create = GenerationInstructionEnum.Unknown;
XAttribute xCreate = xElement.Attribute("create");
if (xCreate != null)
{
switch (xCreate.Value)
{
case "require":
Create = GenerationInstructionEnum.Require;
break;
case "allow":
Create = GenerationInstructionEnum.Allow;
break;
case "deny":
Create = GenerationInstructionEnum.Deny;
break;
default:
Debug.WriteLine($"Invalid instruction type : {xCreate.Value}");
break;
}
}
Price = null;
XAttribute xPrice = xElement.Attribute("price");
if (xPrice != null && !string.IsNullOrEmpty(xPrice.Value))
{
if (float.TryParse(xPrice.Value, out var val))
{
Price = val;
}
}
}