private static string CreateIdentity(IHtmlElement element, bool ancestorsCreate)
{
string parentId;
var parentElement = element.Parent();
if (parentElement != null)
{
parentId = Identity(parentElement);
if (parentId == null)
{
if (ancestorsCreate)
{
parentId = Identity(parentElement, true, true);
}
else
{
parentId = CreateIdentity(parentElement, false);
}
}
}
else
{
if (element.Container is IHtmlDocument)
{
parentId = null;
}
else
{
throw new InvalidOperationException();
}
}
var name = GetElementName(element);
var builder = new StringBuilder();
if (!string.IsNullOrEmpty(parentId))
{
builder.AppendFormat("{0}_", parentId);
}
builder.Append(name);
if (element.Siblings().Where(e => GetElementName(e).EqualsIgnoreCase(GetElementName(element))).IsSingle())
{
return(builder.ToString());
}
var index = element.SiblingsBeforeSelf().Count(e => GetElementName(e).EqualsIgnoreCase(GetElementName(element)));
builder.Append(index + 1);
var identity = builder.ToString();
return(EnsureUniqueness(identity, element.Document));
}
private static string CreateIdentity( IHtmlElement element, bool ancestorsCreate )
{
string parentId;
var parentElement = element.Parent();
if ( parentElement != null )
{
parentId = Identity( parentElement );
if ( parentId == null )
{
if ( ancestorsCreate )
parentId = Identity( parentElement, true, true );
else
parentId = CreateIdentity( parentElement, false );
}
}
else
{
if ( element.Container is IHtmlDocument )
parentId = null;
else
throw new InvalidOperationException();
}
var name = GetElementName( element );
var builder = new StringBuilder();
if ( !string.IsNullOrEmpty( parentId ) )
builder.AppendFormat( "{0}_", parentId );
builder.Append( name );
string identity;
if ( element.Siblings().Where( e => GetElementName( e ).EqualsIgnoreCase( GetElementName( element ) ) ).IsSingle() )
identity = builder.ToString();
var index = element.SiblingsBeforeSelf().Count( e => GetElementName( e ).EqualsIgnoreCase( GetElementName( element ) ) );
builder.Append( index + 1 );
identity = builder.ToString();
return EnsureUniqueness( identity, element.Document );
}
