internal bool StyleContains(HtmlStyle parentStyle, HtmlStyle childStyle)
{
foreach (string[] array in tags)
{
if (HtmlStringComparer.Contains(array, parentStyle.Name) && HtmlStringComparer.Contains(array, childStyle.Name))
{
return true;
}
}
return false;
}
internal bool InheritStyle(HtmlStyle parentStyle, HtmlNode child)
{
foreach (CSSProperty property in properties)
{
if (property.AppendStyle(parentStyle, child))
{
return true;
}
}
return false;
}
internal override bool AppendStyle(HtmlStyle parentStyle, HtmlNode child)
{
if (parentStyle == null || child == null)
{
return false;
}
if (parentStyle.Name.CompareInvariantCultureIgnoreCase(backgroundColor) ||
parentStyle.Name.CompareInvariantCultureIgnoreCase(background))
{
HtmlStyle style;
if (!child.HasStyle(backgroundColor) && !child.HasStyle(background))
{
//child.HtmlStyles.Add(new HtmlStyle(parentStyle.Name, parentStyle.Value, false));
child.UpdateInheritedStyles(parentStyle);
}
else if ((child.TryGetStyle(background, out style) || child.TryGetStyle(backgroundColor, out style)) &&
style.Value.CompareInvariantCultureIgnoreCase(transparent))
{
string styleValue = parentStyle.Value;
if (parentStyle.Name.CompareInvariantCultureIgnoreCase(background) &&
style.Name.CompareInvariantCultureIgnoreCase(backgroundColor))
{
int index = styleValue.IndexOf(' ');
if (index != -1)
{
styleValue = styleValue.Remove(index);
}
}
style.ModifyStyle(styleValue);
}
return true;
}
return false;
}
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;
}
}
}
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 bool TryGetInheritedStyle(string styleName, out HtmlStyle htmlStyle)
{
htmlStyle = null;
if (inheritedHtmlStyles == null || inheritedHtmlStyles.Count == 0)
{
return false;
}
foreach (HtmlStyle style in inheritedHtmlStyles)
{
if (string.Compare(styleName, style.Name, StringComparison.InvariantCultureIgnoreCase) == 0)
{
htmlStyle = style;
return true;
}
}
return false;
}
internal bool TryGetStyle(string styleName, out HtmlStyle htmlStyle)
{
htmlStyle = null;
foreach (HtmlStyle style in htmlStyles)
{
if (string.Compare(styleName, style.Name, StringComparison.InvariantCultureIgnoreCase) == 0)
{
htmlStyle = style;
return true;
}
}
return false;
}
internal override bool AppendStyle(HtmlStyle parentStyle, HtmlNode child)
{
if (parentStyle == null || child == null)
{
return false;
}
if (parentStyle.Name.CompareInvariantCultureIgnoreCase(fontFamily))
{
ProcessFontFamily(parentStyle, child);
return true;
}
else if (parentStyle.Name.CompareInvariantCultureIgnoreCase(font))
{
ProcessFont(parentStyle, child);
return true;
}
return false;
}
private void ProcessFontFamily(HtmlStyle parentStyle, HtmlNode child)
{
if (!child.HasStyle(fontFamily) && !child.HasStyle(font))
{
child.UpdateInheritedStyles(parentStyle);
}
}
private void ProcessFont(HtmlStyle parentStyle, HtmlNode child)
{
Dictionary<string, string> parentStyles = new Dictionary<string, string>();
KeyValuePair<Stack<string>, Stack<string>> styleStack =
new KeyValuePair<Stack<string>, Stack<string>>(new Stack<string>(), new Stack<string>());
if (ProcessFontStyle(parentStyle.Value, parentStyles, styleStack) && parentStyles.Count > 0)
{
foreach (var style in parentStyles)
{
if (!child.HasStyle(style.Key))
{
child.UpdateInheritedStyles(new HtmlStyle(style.Key, style.Value, false));
}
}
}
}
internal abstract bool AppendStyle(HtmlStyle parentStyle, HtmlNode child);
