/// <summary>
/// Adds the given spineReference to the spine references and returns it.
/// </summary>
/// <param name="spineReference"></param>
public SpineReference addSpineReference(SpineReference spineReference)
{
if (spineReferences == null)
{
this.spineReferences = new List<SpineReference>();
}
spineReferences.Add(spineReference);
return spineReference;
}
/// <summary>
/// Finds the first resource that has the given resourceId. Null if not found.
/// </summary>
/// <param name="resourceId"></param>
public int findFirstResourceById(string resourceId)
{
if (StringUtil.isBlank(resourceId))
{
return -1;
}
for (int i = 0; i < spineReferences.Count; i++)
{
SpineReference spineReference = spineReferences[i];
if (resourceId.Equals(spineReference.getResourceId()))
{
return i;
}
}
return -1;
}
/// <summary>
/// Reads the document's spine, containing all sections in reading order.
/// </summary>
/// <param>book</param>
/// <param>resourcesById</param>
/// <param name="packageDocument"></param>
/// <param name="epubReader"></param>
/// <param name="resources"></param>
/// <param name="idMapping"></param>
private static Spine readSpine(XElement packageDocument, EpubReader epubReader, Resources resources, Dictionary<String, String> idMapping)
{
XElement spineElement = DOMUtil.getFirstElementByTagNameNS(packageDocument, NAMESPACE_OPF, OPFTags.spine);
if (spineElement == null)
{
//log.error("Element " + OPFTags.spine + " not found in package document, generating one automatically");
return generateSpineFromResources(resources);
}
Spine result = new Spine();
result.setTocResource(findTableOfContentsResource(spineElement, resources));
var spineNodes = packageDocument.Elements(NAMESPACE_OPF + OPFTags.itemref).Elements<XElement>();
IEnumerator spineNode = spineNodes.GetEnumerator();
List<SpineReference> spineReferences = new List<SpineReference>();
while (spineNode.MoveNext())
{
XElement spineItem = (XElement)spineNode.Current;
String itemref = DOMUtil.getAttribute(spineItem, OPFAttributes.idref);
if (StringUtil.isBlank(itemref))
{
//log.error("itemref with missing or empty idref"); // XXX
continue;
}
String id = idMapping[itemref];
if (id == null)
{
id = itemref;
}
Resource resource = resources.getByIdOrHref(id);
if (resource == null)
{
//log.error("resource with id \'" + id + "\' not found");
continue;
}
SpineReference spineReference = new SpineReference(resource);
if (OPFValues.no.Equals(DOMUtil.getAttribute(spineItem, OPFAttributes.linear)))
{
spineReference.setLinear(false);
}
spineReferences.Add(spineReference);
}
result.setSpineReferences(spineReferences);
return result;
}
/// <summary>
/// Adds the given spineReference to the spine references and returns it.
/// </summary>
/// <param name="spineReference"></param>
public SpineReference addSpineReference(SpineReference spineReference)
{
if (spineReferences == null)
{
this.spineReferences = new List<SpineReference>();
}
spineReferences.Add(spineReference);
return spineReference;
}