public bool Has(ViewType view)
{
switch (view)
{
case ViewType.Toc:
return(true);
case ViewType.Index:
try
{
return(DataFolder.GetFileIgnoreCase(LemmataTxt).Length != 0); // lemmata.txt can be empty
}
catch (Exception)
{
return(false);
}
case ViewType.Search:
return(true);
case ViewType.Images:
return(true);
}
return(false);
}
public Task <IEnumerable <ICategoryItem> > QueryCategories()
{
FileInfo lemmataTxt = DataFolder.GetFileIgnoreCase(LemmataTxt);
if (lemmataTxt.Exists)
{
return(Task.FromResult(IndexUtil.LoadCategories(lemmataTxt, Ini).AsEnumerable <ICategoryItem>()));
}
return(Task.FromResult(Enumerable.Empty <ICategoryItem>()));
}
public Task <IEnumerable <IIndexItem> > QueryIndex(string pattern, IEnumerable <ICategoryItem> categories, int page)
{
FileInfo lemmataTxt = DataFolder.GetFileIgnoreCase(LemmataTxt);
if (lemmataTxt.Exists)
{
return(Task.FromResult(IndexUtil.LoadLemmata(lemmataTxt, pattern, categories, page)
.AsEnumerable <IIndexItem>()));
}
return(Task.FromResult(Enumerable.Empty <IIndexItem>()));
}
public Task <bool> Html(int pagenumber, DirectoryInfo folder, string highlight)
{
string filename = Path.Combine(folder.FullName,
Path.ChangeExtension(pagenumber.ToString(), html.ToString()));
ISet <int> highlightedOffsets = string.IsNullOrWhiteSpace(highlight)
? new HashSet <int>()
: SearchUtil.HighlightedOffsets(pagenumber, highlight, DataFolder);
using (HtmlWriter writer = new HtmlWriter(new FileStream(filename, FileMode.Create, FileAccess.Write),
pagenumber, highlightedOffsets))
{
TocItem item = FindItem(pagenumber);
IEnumerable <Page> pages = PageUtil.LoadPages(DataFolder.GetFileIgnoreCase(TextDki), item.Pagenumber,
item.Pagecount);
foreach (Page page in pages)
{
PageUtil.Parse(page, writer);
}
DumpImages(writer.ImageIdsToExtensions, folder);
}
return(Task.FromResult(true));
}