/// <summary>
/// Deep clone, but does not copy the OnPDFAnnotationListChanged subscribers.
/// </summary>
public object Clone()
{
var clone = new PDFAnnotationList();
foreach (var annotation in annotations)
{
clone.AddUpdatedAnnotation((PDFAnnotation)annotation.Clone());
}
return(clone);
}
public PDFAnnotationList GetAnnotations(Dictionary <string, byte[]> library_items_annotations_cache)
{
if (null == annotations)
{
annotations = new PDFAnnotationList();
PDFAnnotationSerializer.ReadFromDisk(this, annotations, library_items_annotations_cache);
annotations.OnPDFAnnotationListChanged += annotations_OnPDFAnnotationListChanged;
}
return(annotations);
}
internal PDFDocument(WebLibraryDetail web_library_detail, DictionaryBasedObject dictionary, PDFAnnotationList prefetched_annotations_for_document = null)
{
this.library = new TypedWeakReference <WebLibraryDetail>(web_library_detail);
this.dictionary = dictionary;
// process any prefetched annotations that we may have as usual:
if (prefetched_annotations_for_document != null)
{
annotations = prefetched_annotations_for_document;
lock (access_lock)
{
dirtyNeedsReindexing = (prefetched_annotations_for_document.Count > 0);
}
}
}
/// <summary>
/// NB: only call this as part of document creation.
/// </summary>
public void CloneMetaData(PDFDocument existing_pdf_document)
{
bindable = null;
Logging.Info("Cloning metadata from {0}", existing_pdf_document.Title);
dictionary = (DictionaryBasedObject)existing_pdf_document.dictionary.Clone();
annotations = (PDFAnnotationList)existing_pdf_document.Annotations.Clone();
highlights = (PDFHightlightList)existing_pdf_document.Highlights.Clone();
inks = (PDFInkList)existing_pdf_document.Inks.Clone();
SaveToMetaData();
// Copy the citations
PDFDocumentCitationManager.CloneFrom(existing_pdf_document.PDFDocumentCitationManager);
// Now clear out the references for the annotations and highlights, so that when they are reloaded the events are resubscribed
annotations = null;
highlights = null;
inks = null;
}
/// <summary>
/// Throws exception when metadata could not be converted to a valid PDFDocument instance.
/// </summary>
/// <param name="library"></param>
/// <param name="data"></param>
/// <param name="library_items_annotations_cache"></param>
/// <returns></returns>
public static PDFDocument LoadFromMetaData(WebLibraryDetail web_library_detail, string fingerprint, byte[] data, PDFAnnotationList prefetched_annotations_for_document = null)
{
WPFDoEvents.AssertThisCodeIs_NOT_RunningInTheUIThread();
ASSERT.Test(!String.IsNullOrEmpty(fingerprint));
DictionaryBasedObject dictionary = PDFMetadataSerializer.ReadFromStream(data);
// Recover partially damaged record: if there's no fingerprint in the dictionary, add the given one:
string id = dictionary["Fingerprint"] as string;
if (String.IsNullOrEmpty(id))
{
Logging.Error("Library '{1}' corrupted? Sanity check: the document record for document fingerprint {0} lacked a fingerprint as part of the mandatory metadata. This has been fixed now.", fingerprint, web_library_detail.DescriptiveTitle);
dictionary["Fingerprint"] = fingerprint;
id = fingerprint;
}
// extra verification / sanity check: this will catch some very obscure DB corruption, or rather **manual editing**! ;-)
if (id != fingerprint || true)
{
// see which of them makes the most sense... And DO remember that Qiqqa fingeerprint hashes are variable-length, due to an old systemic bug!
Regex re = new Regex(@"^[a-zA-Z0-9]{20,}(?:_REF)?$");
bool id_is_possibly_legal = re.IsMatch(id);
bool key_is_possibly_legal = re.IsMatch(fingerprint);
// if the entry in the record itself is legal, run with that one. Otherwise, fall back to using the DB record KEY.
if (id_is_possibly_legal)
{
Logging.Error("Library '{2}' corrupted? Sanity check: given fingerprint '{0}' does not match the fingerprint '{1}' obtained from the DB metadata record. Running with the fingerprint specified in the metadata record.", fingerprint, id, web_library_detail.DescriptiveTitle);
}
else
{
Logging.Error("Library '{2}' corrupted? Sanity check: given fingerprint '{0}' does not match the fingerprint '{1}' obtained from the DB metadata record. Running with the fingerprint specified as database record KEY, since the other fingerprint does not look like a LEGAL fingerprint.", fingerprint, id, web_library_detail.DescriptiveTitle);
dictionary["Fingerprint"] = fingerprint;
id = fingerprint;
}
}
PDFDocument pdf_document = new PDFDocument(web_library_detail, dictionary, prefetched_annotations_for_document);
// thread-UNSAFE access is permitted as the PDF has just been created and
// is NOT known to the outside world (i.e. beyond the scope of this function)
// so there's no thread-safety risk yet.
_ = pdf_document.GetAnnotations();
return(pdf_document);
}
