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 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 void SearchInChapter(EpubChapter chapter)
{
if (chapter.SubChapters.Count > 0)
{
foreach (var item in chapter.SubChapters)
{
SearchInChapter(item);
}
}
else
{
try
{
int results = 0;
var str = chapter.HtmlContent;
int index = str.ToLower().IndexOf(filter.ToLower(), StringComparison.InvariantCulture);
int lastResult = index + filter.Length;
while (index >= 0)
{
string before = "";
string originalFound = "";
string after = "";
if (index > 0)
before = str.Substring(0, index);
if (index + filter.Length < str.Length)
after = str.Substring(index + filter.Length);
originalFound = str.Substring(index, filter.Length);
SearchResults.Add(new SearchResult()
{
HtmlId = "res" + results,
BeforeResult = before.Substring(Math.Max(0, before.Length - 60)),
Result = originalFound,
AfterResult = after.Substring(0, Math.Min(60, after.Length)),
Reference = chapter
});
originalFound = "<result id=\"res" + results + "\">" + originalFound + "</result>";
lastResult = index + originalFound.Length;
str = before + originalFound + after;
results++;
index = str.ToLower().IndexOf(filter.ToLower(), lastResult, StringComparison.InvariantCulture);
}
chapter.HtmlContent = str;
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
}