private static List <EpubChapter> LoadChapters(EpubBook book, List <EpubNavigationPoint> navigationPoints, ZipArchive epubArchive)
{
List <EpubChapter> result = new List <EpubChapter>();
foreach (EpubNavigationPoint navigationPoint in navigationPoints)
{
EpubChapter chapter = new EpubChapter();
chapter.Title = navigationPoint.NavigationLabels.First().Text;
int contentSourceAnchorCharIndex = navigationPoint.Content.Source.IndexOf('#');
if (contentSourceAnchorCharIndex == -1)
{
chapter.ContentFileName = navigationPoint.Content.Source;
}
else
{
chapter.ContentFileName = navigationPoint.Content.Source.Substring(0, contentSourceAnchorCharIndex);
chapter.Anchor = navigationPoint.Content.Source.Substring(contentSourceAnchorCharIndex + 1);
}
EpubTextContentFile htmlContentFile;
if (!book.Content.Html.TryGetValue(chapter.ContentFileName, out htmlContentFile))
{
throw new Exception(String.Format("Incorrect EPUB manifest: item with href = \"{0}\" is missing", chapter.ContentFileName));
}
chapter.HtmlContent = htmlContentFile.Content;
chapter.SubChapters = LoadChapters(book, navigationPoint.ChildNavigationPoints, epubArchive);
result.Add(chapter);
}
return(result);
}
private static List <EpubChapter> LoadChapters(EpubBook book, List <EpubNavigationPoint> navigationPoints, ZipArchive epubArchive, EpubChapter parentChapter = null)
{
List <EpubChapter> result = new List <EpubChapter>();
foreach (EpubNavigationPoint navigationPoint in navigationPoints)
{
EpubChapter chapter = new EpubChapter();
chapter.Book = book;
chapter.Title = navigationPoint.NavigationLabels.First().Text;
int contentSourceAnchorCharIndex = navigationPoint.Content.Source.IndexOf('#');
if (contentSourceAnchorCharIndex == -1)
{
chapter.ContentFileName = navigationPoint.Content.Source;
}
else
{
chapter.ContentFileName = navigationPoint.Content.Source.Substring(0, contentSourceAnchorCharIndex);
chapter.Anchor = navigationPoint.Content.Source.Substring(contentSourceAnchorCharIndex + 1);
}
EpubTextContentFile htmlContentFile;
if (!book.Content.Html.TryGetValue(chapter.ContentFileName, out htmlContentFile))
{
throw new Exception(String.Format("Incorrect EPUB manifest: item with href = \"{0}\" is missing", chapter.ContentFileName));
}
chapter.HtmlContent = htmlContentFile.Content;
chapter.SubChapters = LoadChapters(book, navigationPoint.ChildNavigationPoints, epubArchive, chapter);
result.Add(chapter);
}
//if (result.Count == 0 && parentChapter != null)
//{
// var html = parentChapter.HtmlContent;
// HtmlDocument doc = new HtmlDocument();
// doc.LoadHtml(html);
// int count = 0;
// foreach (var node in doc.DocumentNode.QuerySelectorAll("p"))
// {
// EpubChapter chapter = new EpubChapter();
// chapter.Title = node.InnerText.Substring(0, Math.Min(node.InnerText.Length, 80));
// if (chapter.Title.Length < node.InnerText.Length)
// chapter.Title = chapter.Title.Substring(0, chapter.Title.LastIndexOf(" "));
// node.SetAttributeValue("id", "p" + count);
// count++;
// chapter.HtmlId = node.Id;
// chapter.HtmlContent = node.InnerHtml;
// chapter.SubChapters = LoadChapters(book, new List<EpubNavigationPoint>(), epubArchive);
// result.Add(chapter);
// }
// parentChapter.HtmlContent = doc.DocumentNode.InnerHtml;
//}
return(result);
}
private static async Task <List <EpubChapter> > ReadChapters(List <EpubChapterRef> chapterRefs)
{
List <EpubChapter> result = new List <EpubChapter>();
foreach (EpubChapterRef chapterRef in chapterRefs)
{
EpubChapter chapter = new EpubChapter
{
Title = chapterRef.Title,
ContentFileName = chapterRef.ContentFileName,
Anchor = chapterRef.Anchor
};
chapter.HtmlContent = await chapterRef.ReadHtmlContentAsync().ConfigureAwait(false);
chapter.SubChapters = await ReadChapters(chapterRef.SubChapters).ConfigureAwait(false);
result.Add(chapter);
}
return(result);
}
