public static bool IsCompatible(CssSimpleElementSelector sel1, CssSimpleElementSelector sel2)
{
//walk top of both
var parOrSelf1 = GetTopParentOrSelf(sel1);
var parOrSelf2 = GetTopParentOrSelf(sel2);
return parOrSelf1.IsSameNameAndType(parOrSelf2);
}
static CssElementSelector GetTopParentOrSelf(CssSimpleElementSelector selector)
{
var parent = selector.Parent;
if (parent == null)
{
return selector;
}
while (parent.Parent != null)
{
parent = parent.Parent;
}
return parent;
}
public void AddSelector(CssSimpleElementSelector primExpr)
{
#if DEBUG
if (primExpr == null)
{
}
#endif
if (elementSelector == null)
{
elementSelector = primExpr;
}
else
{
CssCompundElementSelector combinatorExpr = this.elementSelector as CssCompundElementSelector;
if (combinatorExpr != null)
{
combinatorExpr.RightSelector = primExpr;
}
else
{
CssSimpleElementSelector currentPrimExpr = this.elementSelector as CssSimpleElementSelector;
if (currentPrimExpr != null)
{
combinatorExpr = new CssCompundElementSelector(CssCombinatorOperator.Descendant);
combinatorExpr.LeftSelector = this.elementSelector;
combinatorExpr.RightSelector = primExpr;
this.elementSelector = combinatorExpr;
}
else
{
}
}
}
}
