/// <summary>
/// override to unload book, will delete the temporary folder
/// </summary>
/// <param name="bk"></param>
override public void UnloadBook(Book bk)
{
if (LogHelper.CanDebug())
{
LogHelper.Begin("ePUBBookService.UnloadBook");
}
try
{
base.UnloadBook(bk);
if (bk != null && bk.Tag != null)
{
ePUB docPUB = bk.Tag as ePUB;
if (!string.IsNullOrEmpty(docPUB.ExpandFolder))
{
Directory.Delete(docPUB.ExpandFolder, true);
}
}
}
catch (Exception err)
{
LogHelper.Manage("ePUBBookService.UnloadBook", err);
}
finally
{
LogHelper.End("ePUBBookService.UnloadBook");
}
}
/// <summary>
/// override to load covers
/// </summary>
/// <param name="param"></param>
override internal void LoadCoverThread(object param)
{
Book bk = param as Book;
if (LogHelper.CanDebug())
{
LogHelper.Begin("ePUBBookService.LoadCoverThread");
}
try
{
// all ready unzipped ?
if (bk != null && bk.Tag != null)
{
ePUB docPUB = bk.Tag as ePUB;
string coverFile = docPUB.GetCoverFile();
Application.Current.Dispatcher.Invoke(DispatcherPriority.Normal, (ThreadStart) delegate
{
BitmapImage myImage = new BitmapImage();
myImage.BeginInit();
myImage.UriSource = new Uri(coverFile);
myImage.CacheOption = BitmapCacheOption.OnLoad;
myImage.DecodePixelWidth = 70;
myImage.EndInit();
bk.Cover = myImage;
});
}
else
{
ePUB docPUB = new ePUBManager().ParseFileForCoverOnly(bk.FilePath);
string coverFile = docPUB.GetCoverFile();
if (coverFile == null)
{
// no image or an error, send default one from us
GetUnknownCover(bk);
}
SevenZipExtractor temp = null;
try
{
temp = ZipHelper.Instance.GetExtractor(bk.FilePath);
bk.Size = temp.PackedSize;
ArchiveFileInfo fil = temp.ArchiveFileData.Where(p => !p.IsDirectory && p.FileName == coverFile).First();
using (MemoryStream stream = new MemoryStream())
{
temp.ExtractFile(fil.FileName, stream);
CreateImage(bk, stream);
}
}
catch (Exception err)
{
LogHelper.Manage("ePUBBookService:LoadCoverThread", err);
}
finally
{
ZipHelper.Instance.ReleaseExtractor(temp);
}
}
}
catch (Exception err)
{
LogHelper.Manage("ePUBBookService.LoadCoverThread", err);
}
finally
{
LogHelper.End("ePUBBookService.LoadCoverThread");
}
}
public IDocumentPaginatorSource ParseToDocument(ePUB data)
{
return(new HtmlConverter().ConvertToFlowDocument(data));
}
