public void ColorValidLengthLongString()
{
HtmlColor hc;
var color = "fffabc";
var result = HtmlColor.TryFromHex(color, out hc);
Assert.IsTrue(result);
}
public void ColorInvalidLengthString()
{
HtmlColor hc;
var color = "abcd";
var result = HtmlColor.TryFromHex(color, out hc);
Assert.IsFalse(result);
}
public void ColorInvalidHexDigitString()
{
HtmlColor hc;
var color = "BCDEFG";
var result = HtmlColor.TryFromHex(color, out hc);
Assert.IsFalse(result);
}
public void Color_with_leading_hashtag_can_be_parsed_by_try()
{
HtmlColor color;
bool result = HtmlColor.TryFromHex("#FF0000", out color);
Assert.IsTrue(result);
Assert.AreEqual(new HtmlColor(255, 0, 0), color);
}
private bool ParseSingleValueHexColor(string color)
{
HtmlColor htmlColor;
if (HtmlColor.TryFromHex(color, out htmlColor))
{
return(AddTerm(htmlColor));
}
return(false);
}
public void Null_color_does_not_throw()
{
bool result = true;
Assert.DoesNotThrow(() =>
{
HtmlColor color;
result = HtmlColor.TryFromHex(null, out color);
});
Assert.IsFalse(result);
}
/// <summary>
/// Creates a single value from the given source.
/// </summary>
/// <param name="source">The token iterator.</param>
/// <returns>The value or NULL.</returns>
CSSValue CreateValue(IEnumerator <CssToken> source)
{
CSSValue value = null;
switch (source.Current.Type)
{
case CssTokenType.String: // 'i am a string'
value = new CSSPrimitiveValue(UnitType.String, ((CssStringToken)source.Current).Data);
break;
case CssTokenType.Url: // url('this is a valid URL')
value = new CSSPrimitiveValue(UnitType.Uri, ((CssStringToken)source.Current).Data);
break;
case CssTokenType.Ident: // ident
value = new CSSPrimitiveValue(UnitType.Ident, ((CssKeywordToken)source.Current).Data);
break;
case CssTokenType.Percentage: // 5%
value = new CSSPrimitiveValue(UnitType.Percentage, ((CssUnitToken)source.Current).Data);
break;
case CssTokenType.Dimension: // 3px
value = new CSSPrimitiveValue(((CssUnitToken)source.Current).Unit, ((CssUnitToken)source.Current).Data);
break;
case CssTokenType.Number: // 173
value = new CSSPrimitiveValue(UnitType.Number, ((CssNumberToken)source.Current).Data);
break;
case CssTokenType.Hash: // #string
HtmlColor color;
if (HtmlColor.TryFromHex(((CssKeywordToken)source.Current).Data, out color))
{
value = new CSSPrimitiveValue(color);
}
break;
case CssTokenType.Delim: // e.g. #0F3, #012345, ...
if (((CssDelimToken)source.Current).Data == '#')
{
String hash = String.Empty;
while (source.MoveNext())
{
var stop = false;
switch (source.Current.Type)
{
case CssTokenType.Number:
case CssTokenType.Dimension:
case CssTokenType.Ident:
var rest = source.Current.ToValue();
if (hash.Length + rest.Length <= 6)
{
hash += rest;
}
else
{
stop = true;
}
break;
default:
stop = true;
break;
}
if (stop || hash.Length == 6)
{
break;
}
}
if (HtmlColor.TryFromHex(hash, out color))
{
value = new CSSPrimitiveValue(color);
}
}
break;
case CssTokenType.Function: // rgba(255, 255, 20, 0.5)
value = CreateFunction(source);
break;
}
return(value);
}
