/// <summary>
/// remove extra empty spans
/// </summary>
/// <param name="doc">html document path</param>
/// <param name="destDir">directory of html page</param>
/// <returns></returns>
private static HtmlDocument RemoveEmptySpans(HtmlDocument doc, string destDir)
{
var pageContainer = doc.DocumentNode.SelectSingleNode("//div[contains(@id, 'page-container')]");
if (pageContainer == null)
{
return(null);
}
var textDivHTML = pageContainer.InnerHtml;
if (string.IsNullOrEmpty(textDivHTML))
{
return(null);
}
//var doc = new HtmlDocument();
// doc.OptionWriteEmptyNodes = true;
var html = new DirectoryInfo(destDir).GetFiles("*.html").First();
// string allText = File.ReadAllText(destDir + "\\OEBPS\\css\\" + Path.GetFileNameWithoutExtension(html.Name) + ".css").ToString();
//// string nh = @"[^\s_[0-9]*]";
// string nh = @"^_d*";
// Regex regex1 = new Regex(nh, RegexOptions.IgnoreCase);
// Match match = regex1.Match(allText);
List <string> xpaths = new List <string>();
// var elementsList = rdoc.DocumentNode.SelectNodes("//div[contains(@class, 'pc')]").Elements().ToList();
var spans = doc.DocumentNode.SelectNodes("//span");
if (spans == null)
{
return(doc);
}
var elementsList = spans.ToList();
if (elementsList != null)
{
foreach (var pnode in elementsList)
{
var childElements = pnode.GetAttributeValue("class", null);
if (childElements != null && childElements.Contains('_'))
{
var arrSpanClasses = childElements.Split(' ');
string strSpanClass = "";
if (arrSpanClasses.Length > 1)
{
strSpanClass = arrSpanClasses[1];
string leftwidth = CssParserold.GetElementStyle(destDir + "\\OEBPS\\css\\" + Path.GetFileNameWithoutExtension(html.Name) + ".css", strSpanClass);
string emptyWidth = leftwidth.Split(';')[1].Split(':')[1].Split('p')[0];
var roundOff = Convert.ToInt32(double.Parse(emptyWidth));
if (roundOff >= -4 && roundOff <= 4)
{
pnode.Remove();
}
}
}
}
}
return(doc);
}
/// <summary>
/// rename .page to .html with some stuff.
/// </summary>
/// <param name="destDir"></param>
public static void ChangeHtmltoXhtml(string destDir)
{
if (Directory.Exists(destDir))
{
var doc = new HtmlDocument();
doc.OptionWriteEmptyNodes = true;
var html = new DirectoryInfo(destDir).GetFiles("*.html").First();
if (html != null)
{
doc.Load(html.FullName, Encoding.UTF8);
var htmlAdd = doc.DocumentNode.SelectSingleNode("//html");
htmlAdd.SetAttributeValue("xmlns:epub", "http://www.idpf.org/2007/ops");
htmlAdd.SetAttributeValue("xml:lang", "en-US");
var metaInfo = doc.CreateElement("meta");
string widthP = CssParserold.GetElementStyle(destDir + "\\OEBPS\\css\\" + Path.GetFileNameWithoutExtension(html.Name) + ".css", "w0");
var pageWidth = widthP.Split(':')[1].Split(';')[0].Split('.')[0];
string f = destDir + "\\OEBPS\\css\\" + Path.GetFileNameWithoutExtension(html.Name);
string heightP = CssParserold.GetElementStyle(destDir + "\\OEBPS\\css\\" + Path.GetFileNameWithoutExtension(html.Name) + ".css", "h0");
var pageHeight = heightP.Split(':')[1].Split(';')[0].Split('.')[0];
string charSet = metaInfo.GetAttributeValue("charset", null);
metaInfo.SetAttributeValue("name", "viewport");
metaInfo.SetAttributeValue("content", "width=" + pageWidth + ", height=" + pageHeight);
//doc.DocumentNode.SelectSingleNode("//meta[@charset='utf-8'").InsertAfter(metaInfo);
doc.DocumentNode.SelectSingleNode("//head").PrependChild(metaInfo);
var xmlNode = HtmlNode.CreateNode("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
doc.DocumentNode.PrependChild(xmlNode);
var script = doc.DocumentNode.Descendants().Where(n => n.Name == "script");// //removing all redundant script tags
if (script != null)
{
script.ToList().ForEach(n => n.Remove());
}
var fancyLink = doc.DocumentNode.SelectSingleNode("//link[@href='fancy.min.css']");
if (fancyLink != null)
{
fancyLink.Remove();
}
if (File.Exists(destDir + "\\OEBPS\\css\\fancy.min.css"))
{
File.Delete(destDir + "\\OEBPS\\css\\fancy.min.css");
}
var links = doc.DocumentNode.Descendants().Where(n => n.Name == "link");
if (links != null)
{
links.ToList().ForEach(l => {
l.SetAttributeValue("href", "css/" + l.GetAttributeValue("href", null));
});
}
var extra = doc.DocumentNode.SelectSingleNode("//div[@id='outline']");
if (extra != null)
{
extra.Remove();
}
var sidebr = doc.DocumentNode.SelectSingleNode("//div[@id='sidebar']");
if (sidebr != null)
{
sidebr.Remove();
}
var png = doc.DocumentNode.SelectSingleNode("//div[@class='loading-indicator']");
if (png != null)
{
png.Remove();
}
var exMeta = doc.DocumentNode.SelectSingleNode("//meta[@http-equiv='X-UA-Compatible']");
if (exMeta != null)
{
exMeta.Remove();
}
var exMetaOther = doc.DocumentNode.SelectSingleNode("//meta[@name='generator']");
if (exMetaOther != null)
{
exMetaOther.Remove();
}
var pageFiles = new DirectoryInfo(destDir).GetFiles("*.PAGE");
int pageCounter = 1;
foreach (var pageFile in pageFiles)
{
var pageDoc = new HtmlDocument();
pageDoc.Load(pageFile.FullName, Encoding.UTF8);
var imgs = pageDoc.DocumentNode.SelectNodes("//img");
if (imgs != null)
{
imgs.ToList().ForEach(i => i.SetAttributeValue("src", "images/" + i.GetAttributeValue("src", null)));
}
var container = doc.DocumentNode.SelectSingleNode("//div[@id='page-container']");
if (container != null)
{
container.RemoveAllChildren();
container.AppendChild(pageDoc.DocumentNode);
if (HtmlNode.ElementsFlags.ContainsKey("img"))
{
HtmlNode.ElementsFlags["img"] = HtmlElementFlag.Closed;
}
pageCounter = Int32.Parse(Path.GetFileNameWithoutExtension(pageFile.Name).Replace(Path.GetFileNameWithoutExtension(html.Name), ""));
string newFileName = "page" + pageCounter.ToString().PadLeft(4, '0') + ".xhtml";
doc.DocumentNode.SelectSingleNode("//title").InnerHtml = newFileName;
//RemoveEmptySpans(doc, destDir);
SaveTargetNameHtmlFile(destDir + "\\OEBPS\\" + newFileName, doc);
}
}
if (pageFiles.Count() > 0)
{
pageFiles.ToList().ForEach(p => File.Delete(p.FullName));
}
if (File.Exists(html.FullName))
{
File.Delete(html.FullName);
}
var cssText = File.ReadAllText(destDir + "\\OEBPS\\css\\" + Path.GetFileNameWithoutExtension(html.Name) + ".css");
File.WriteAllText(destDir + "\\OEBPS\\css\\" + Path.GetFileNameWithoutExtension(html.Name) + ".css", cssText.Replace("src:url(f", "src:url(../fonts/f"));
var baseCssText = File.ReadAllText(destDir + "\\OEBPS\\css\\base.min.css");
baseCssText = CssParser.RemoveCssClassByName(baseCssText, "media screen");
baseCssText = CssParser.RemoveCssClassByName(baseCssText, "media print");
baseCssText = CssParser.RemoveCssClassByName(baseCssText, "sidebar");
//baseCssText = CssParser.CheckWellFormed(baseCssText);
File.WriteAllText(destDir + "\\OEBPS\\css\\base.min.css", baseCssText);
var baseText = File.ReadAllText(destDir + "\\OEBPS\\css\\base.min.css");
//var bg = baseText += "body{background-color:#808080;margin:0px;}";
File.WriteAllText(destDir + "\\OEBPS\\css\\base.min.css", baseText.Replace("unicode-bidi:bidi-override;", "").Replace("unicode-bidi:bidi-override", ""));
//File.WriteAllText(destDir + "\\OEBPS\\css\\base.min.css",baseText.Replace("@media print" , ""));
//string extraSS = CssParser.GetElementStyle(destDir + "\\OEBPS\\css\\base.min.css", "body").ToString();
}
}
}
