// Methods
public Fb2TokenParser(XNamespace ns, XElement root, CSS styleSheet, List<BookChapter> chapters, Dictionary<string, int> anchors)
{
_ns = ns;
_root = root;
_styleSheet = styleSheet;
_chapters = chapters;
_anchors = anchors;
}
public EpubTokenParser(XDocument opf, EpubPath opfPath, ZipContainer zip, CSS css, Dictionary<string, int> anchors)
{
_opf = opf;
_opfPath = opfPath;
_zip = zip;
_css = css;
_anchors = anchors;
_opfns = XNamespace.Get("http://www.idpf.org/2007/opf");
_opfRoot = _opf.Root;
if (_opfRoot == null)
throw new DataException("Invalid epub meta info.");
}
public static TextVisualProperties Update(this TextVisualProperties properties, HtmlNode element, CSS css)
{
var list = new List<string>
{
element.Name
};
string attributeValue = element.GetAttributeValue("class", string.Empty);
if (!string.IsNullOrEmpty(attributeValue))
{
list.Add(element.Name + "." + attributeValue);
list.Add("." + attributeValue);
}
return properties.UpdateCss(css, list.ToArray());
}
public override IEnumerable<TokenBase> GetTokens()
{
_css = new CSS();
var html = new HtmlDocument
{
OptionOutputAsXml = true,
OptionReadEncoding = false
};
html.Load(_reader);
var root = html.DocumentNode.SelectSingleNode("//body");
var cssNode = html.DocumentNode.SelectSingleNode("//style");
if (cssNode != null)
{
_css.Analyze(cssNode.InnerText);
}
var stack = new Stack<TextVisualProperties>();
var item = new TextVisualProperties();
stack.Push(item);
return ParseTokens(root, stack, new TokenIndex());
}
private CSS GetCss()
{
CSS sheet = new CSS();
sheet.Analyze(DefaultFb2Css);
return sheet;
}
private static TextVisualProperties UpdateCss(this TextVisualProperties properties, CSS css, string[] selectors)
{
css.ApplyProperties(selectors, properties);
return(properties);
}
public static TextVisualProperties Update(this TextVisualProperties properties, XElement element, CSS css)
{
string localName = element.Name.LocalName;
string[] selectors = { localName };
return(properties.UpdateCss(css, selectors));
}
public static TextVisualProperties Update(this TextVisualProperties properties, HtmlNode element, CSS css)
{
var list = new List <string>
{
element.Name
};
string attributeValue = element.GetAttributeValue("class", string.Empty);
if (!string.IsNullOrEmpty(attributeValue))
{
list.Add(element.Name + "." + attributeValue);
list.Add("." + attributeValue);
}
return(properties.UpdateCss(css, list.ToArray()));
}
private CSS GetCss()
{
var sheet = new CSS();
sheet.Analyze(DefaultEpubCss);
var hrefs = _opfRoot
.Elements(_opfns + "manifest")
.Elements(_opfns + "item")
.Where(e =>
{
var mediaType = e.Attribute("media-type");
return mediaType != null && mediaType.Value == "text/css";
})
.Attributes("href").Select(h => h.Value);
foreach (var href in hrefs)
{
Stream stream = _zip.GetFileStream(_opfPath + href, false, true);
if (stream != null)
{
sheet.Analyze(new StreamReader(stream).ReadToEnd());
}
}
return sheet;
}
private static TextVisualProperties UpdateCss(this TextVisualProperties properties, CSS css, string[] selectors)
{
css.ApplyProperties(selectors, properties);
return properties;
}
public static TextVisualProperties Update(this TextVisualProperties properties, XElement element, CSS css)
{
string localName = element.Name.LocalName;
string[] selectors = {localName};
return properties.UpdateCss(css, selectors);
}
