private TocItem FindItem(int pagenumber)
{
DirectoryInfo dataFolder = DataFolder;
FileInfo tocDki = dataFolder.GetFileIgnoreCase(TreeDki);
FileInfo tocDka = dataFolder.GetFileIgnoreCase(TreeDka);
TocItem item = TocUtil.LoadTree(tocDki, tocDka);
while (item.Pagenumber != pagenumber || item.Pagecount == 0)
{
List <TocItem> childrenReverse = item.ChildrenConcrete.AsEnumerable().Reverse().ToList();
TocItem child = childrenReverse.Find(c => c.Pagenumber <= pagenumber);
if (child == null)
{
break;
}
item = child;
}
while (item.Pagecount == 0 && item.ParentConcrete != null)
{
item = item.ParentConcrete;
}
return(item);
}
public Task <ITocItem> QueryToc(string pattern, IEnumerable <ICategoryItem> categories)
{
DirectoryInfo dataFolder = DataFolder;
FileInfo treeDki = dataFolder.GetFileIgnoreCase(TreeDki);
FileInfo treeDka = dataFolder.GetFileIgnoreCase(TreeDka);
TocItem root = TocUtil.LoadTree(treeDki, treeDka);
return(Task.FromResult <ITocItem>(root));
}