private void AppendStyles(HtmlNode node, HtmlNode parent)
{
CSSPropertyParser propertyParser = new CSSPropertyParser();
foreach (HtmlStyle parentStyle in parent.HtmlStyles)
{
if (!propertyParser.CanInherit(parentStyle.Name))
{
continue;
}
bool found = false;
if (propertyParser.InheritStyle(parentStyle, node))
{
continue;
}
foreach (HtmlStyle childStyle in node.HtmlStyles)
{
if (propertyParser.StyleContains(parentStyle, childStyle))
{
found = true;
break;
}
}
if (!found)
{
node.UpdateInheritedStyles(parentStyle);
}
}
foreach (HtmlStyle parentStyle in parent.InheritedHtmlStyles)
{
if (!propertyParser.CanInherit(parentStyle.Name))
{
continue;
}
if(parent.HasStyle(parentStyle.Name))
{
continue;
}
propertyParser.InheritStyle(parentStyle, node);
}
}
internal void OverWrite(HtmlStyle htmlStyle)
{
CSSPropertyParser propertyParser = new CSSPropertyParser();
//if (string.Compare(name, htmlStyle.Name, StringComparison.InvariantCultureIgnoreCase) == 0)
if (propertyParser.StyleContains(this, htmlStyle))
{
if (!important && htmlStyle.Important)
{
name = htmlStyle.Name;
value = htmlStyle.Value;
important = htmlStyle.Important;
specificity = htmlStyle.Specificity;
}
else if (htmlStyle.Specificity >= specificity && (!important || (important && htmlStyle.Important)))
{
name = htmlStyle.Name;
value = htmlStyle.Value;
}
}
}
public override void ParseStyles()
{
if (current != null)
{
CSSTracker cssTracker = new CSSTracker();
cssTracker.UriSchema = uriSchema;
cssTracker.BaseURL = baseUrl;
StyleSheet styleSheet = cssTracker.TrackCSS(current);
styleSheet.ApplyStyles(current);
CSSPropertyParser propertyParser = new CSSPropertyParser();
propertyParser.ParseStyle(current);
CSSInheritance cssInheritance = new CSSInheritance();
cssInheritance.Apply(current);
}
}
private void UpdateCurrentNodeInheritedStyles(HtmlNode node)
{
CSSPropertyParser propertyParser = new CSSPropertyParser();
foreach(HtmlStyle style in node.HtmlStyles)
{
if (!propertyParser.CanInherit(style.Name))
{
continue;
}
node.UpdateInheritedStyles(style);
}
}
internal void UpdateInheritedStyles(HtmlStyle style)
{
CSSPropertyParser propertyParser = new CSSPropertyParser();
foreach (HtmlStyle inheritedStyle in inheritedHtmlStyles)
{
if (propertyParser.StyleContains(style, inheritedStyle))
{
inheritedStyle.ModifyStyle(style.Value);
return;
}
}
//If style found in the inheritedStyles, control will return without hit this statment.
inheritedHtmlStyles.Add(style.Clone());
}
internal void CopyHtmlStyles(List<HtmlStyle> newStyles, Specificity specificity)
{
CSSPropertyParser propertyParser = new CSSPropertyParser();
foreach (HtmlStyle newStyle in newStyles)
{
bool found = false;
newStyle.Specificity = specificity;
foreach (HtmlStyle style in htmlStyles)
{
if (propertyParser.StyleContains(newStyle, style))
{
found = true;
style.OverWrite(newStyle);
}
}
if (!found)
{
htmlStyles.Add(newStyle.Clone());
}
}
}
