/// <summary>
/// Determines if the given value represents a valid state of this property.
/// </summary>
/// <param name="value">The state that should be used.</param>
/// <returns>True if the state is valid, otherwise false.</returns>
protected override Boolean IsValid(CSSValue value)
{
var num = value.ToInteger();
if (num.HasValue && num.Value >= 0)
{
_value = num.Value;
return(true);
}
return(false);
}
/// <summary>
/// Determines if the given value represents a valid state of this property.
/// </summary>
/// <param name="value">The state that should be used.</param>
/// <returns>True if the state is valid, otherwise false.</returns>
protected override Boolean IsValid(CSSValue value)
{
var count = value.ToInteger();
if (count.HasValue)
{
_count = count.Value;
}
else if (value.Is(Keywords.Auto))
{
_count = null;
}
else
{
return(false);
}
return(true);
}
/// <summary>
/// Determines if the given value represents a valid state of this property.
/// </summary>
/// <param name="value">The state that should be used.</param>
/// <returns>True if the state is valid, otherwise false.</returns>
protected override Boolean IsValid(CSSValue value)
{
var number = value.ToInteger();
if (number != null)
{
_value = number.Value;
}
else if (value.Is(Keywords.Auto))
{
_value = null;
}
else
{
return(false);
}
return(true);
}
static CSSPrimitiveValue ToNumber(CSSValue value)
{
var number = value.ToInteger();
if (number != null)
{
var n = number.Value;
if (n >= 0)
{
return((CSSPrimitiveValue)value);
}
}
else if (value.Is(Keywords.Infinite))
{
return(new CSSPrimitiveValue(Number.Infinite));
}
return(null);
}
/// <summary>
/// Determines if the given value represents a valid state of this property.
/// </summary>
/// <param name="value">The state that should be used.</param>
/// <returns>True if the state is valid, otherwise false.</returns>
protected override Boolean IsValid(CSSValue value)
{
FontWeight weight;
if (_weights.TryGetValue(value, out weight))
{
_weight = weight;
return(true);
}
else
{
var val = value.ToInteger();
if (val.HasValue && val.Value >= 100 && val.Value <= 900)
{
_weight = new FontWeight {
IsRelative = false, Value = val.Value
};
return(true);
}
}
return(false);
}