/// <summary>
/// NavigateTo means navigate to a spot in the book. Will also do a navigation with User...
/// </summary>
/// <param name="sourceId"></param>
/// <param name="location"></param>
public void NavigateTo(NavigateControlId sourceId, BookLocation location)
{
var bookdb = BookDataContext.Get();
if (Logger.LogExtraTiming)
{
Logger.Log($"MainEpubReader: Navigation: to {location}");
}
// Save the fact that we navigated to here. Only the main reader saves this information
var navigationData = CommonQueries.BookNavigationDataFind(bookdb, BookData.BookId);
if (navigationData == null)
{
navigationData = new BookNavigationData()
{
BookId = BookData.BookId, CurrStatus = BookNavigationData.UserStatus.Reading
};
CommonQueries.BookNavigationDataAdd(bookdb, navigationData, CommonQueries.ExistHandling.IfNotExists);
}
navigationData.CurrSpot = location.Location;
navigationData.CurrStatus = BookNavigationData.UserStatus.Reading; // If I'm navigating then I'm reading?
// And now actually navigate. There are two types of navigation: navigation
// via tags and navigation by percent.
// Both need to be handled.
var percent = location.HtmlPercent;
if (percent >= 0.0)
{
if (Logger.LogExtraTiming)
{
Logger.Log($"MainEpubReader: Navigation: to percent");
}
NavigateToPercent(location);
}
else
{
if (Logger.LogExtraTiming)
{
Logger.Log($"MainEpubReader: Navigation: via location, not percent ({location})");
}
NavigateToLocation(location);
}
}
public static BookNavigationData BookNavigationDataEnsure(BookDataContext bookdb, BookData bookData)
{
var nd = CommonQueries.BookNavigationDataFind(bookdb, bookData.BookId);
if (nd == null)
{
nd = new BookNavigationData()
{
BookId = bookData.BookId,
};
CommonQueries.BookNavigationDataAdd(bookdb, nd, CommonQueries.ExistHandling.IfNotExists);
nd = CommonQueries.BookNavigationDataFind(bookdb, bookData.BookId);
CommonQueries.BookSaveChanges(bookdb);
}
if (nd == null)
{
App.Error($"ERROR: trying to ensure navigation data, but don't have one.");
}
return(nd);
}
private BookNavigationData EnsureBookNavigationData(BookDataContext bookdb)
{
var nd = CommonQueries.BookNavigationDataFind(bookdb, BookData.BookId);
if (nd == null)
{
nd = new BookNavigationData()
{
BookId = BookData.BookId,
CurrSpot = GetCurrBookLocation().ToJson()
};
CommonQueries.BookNavigationDataAdd(bookdb, nd, CommonQueries.ExistHandling.IfNotExists);
nd = CommonQueries.BookNavigationDataFind(bookdb, BookData.BookId);
}
if (nd == null)
{
App.Error($"ERROR: trying to ensure navigation data, but don't have one.");
}
return(nd);
}
public static int BookNavigationDataAdd(BookDataContext bookdb, BookNavigationData bn, ExistHandling handling)
{
int retval = 0;
NQueries++;
var book = BookGet(bookdb, bn.BookId);
if (book == null)
{
return(retval);
}
switch (handling)
{
case ExistHandling.IfNotExists:
if (book.NavigationData == null)
{
book.NavigationData = bn;
retval++;
}
break;
}
return(retval);
}
