/// <summary>The <see cref="MediaQueryNode"/> visit implementation</summary>
/// <param name="mediaQueryNode">The media expression node.</param>
/// <returns>The modified AST node if modified otherwise the original node</returns>
public override AstNode VisitMediaQueryNode(MediaQueryNode mediaQueryNode)
{
return(new MediaQueryNode(
mediaQueryNode.OnlyText,
mediaQueryNode.NotText,
mediaQueryNode.MediaType,
mediaQueryNode.MediaExpressions.Select(mediaExpressionNode => (MediaExpressionNode)mediaExpressionNode.Accept(this)).ToSafeReadOnlyCollection()));
}
/// <summary>The <see cref="MediaQueryNode"/> visit implementation</summary>
/// <param name="mediaQueryNode">The media expression node.</param>
/// <returns>The modified AST node if modified otherwise the original node</returns>
public override AstNode VisitMediaQueryNode(MediaQueryNode mediaQueryNode)
{
// media_query
// : [ONLY | NOT]? S* media_type S* [ AND S* expression ]*
// | expression [ AND S* expression ]*
// ;
// Per W3C Spec:
// The following is an malformed media query because having no space between ‘and’ and
// the expression is not allowed. (That is reserved for the functional notation syntax.)
// @media all and(color) { … }
if (!string.IsNullOrWhiteSpace(mediaQueryNode.OnlyText))
{
_printerFormatter.Append(mediaQueryNode.OnlyText);
_printerFormatter.Append(CssConstants.SingleSpace);
}
else if (!string.IsNullOrWhiteSpace(mediaQueryNode.NotText))
{
_printerFormatter.Append(mediaQueryNode.NotText);
_printerFormatter.Append(CssConstants.SingleSpace);
}
if (!string.IsNullOrWhiteSpace(mediaQueryNode.MediaType))
{
_printerFormatter.Append(mediaQueryNode.MediaType);
if (mediaQueryNode.MediaExpressions.Count > 0)
{
mediaQueryNode.MediaExpressions.ForEach(mediaExpression =>
{
_printerFormatter.Append(CssConstants.SingleSpace);
_printerFormatter.Append(CssConstants.And);
_printerFormatter.Append(CssConstants.SingleSpace);
mediaExpression.Accept(this);
});
}
}
else
{
mediaQueryNode.MediaExpressions.ForEach((mediaExpression, last) =>
{
mediaExpression.Accept(this);
if (!last)
{
_printerFormatter.Append(CssConstants.SingleSpace);
_printerFormatter.Append(CssConstants.And);
_printerFormatter.Append(CssConstants.SingleSpace);
}
});
}
return(mediaQueryNode);
}
/// <summary>The <see cref="MediaQueryNode"/> visit implementation</summary>
/// <param name="mediaQueryNode">The media expression node.</param>
/// <returns>The modified AST node if modified otherwise the original node</returns>
public virtual AstNode VisitMediaQueryNode(MediaQueryNode mediaQueryNode)
{
return(mediaQueryNode);
}
