static SizeMode?Check(CSSValue value)
{
var distance = value.ToDistance();
if (distance != null)
{
return new SizeMode {
Width = distance
}
}
;
else if (value.Is(Keywords.Auto))
{
return new SizeMode {
}
}
;
else if (value.Is(Keywords.Cover))
{
return new SizeMode {
IsCovered = true
}
}
;
else if (value.Is(Keywords.Contain))
{
return new SizeMode {
IsContained = true
}
}
;
return(null);
}
static IDistance GetMode(CSSValue value, String minIdentifier, String maxIdentifier)
{
var calc = value.ToDistance();
if (calc == null && value is CSSPrimitiveValue)
{
var primitive = (CSSPrimitiveValue)value;
if (primitive.Unit == UnitType.Ident)
{
var ident = primitive.GetString();
if (ident.Equals(minIdentifier, StringComparison.OrdinalIgnoreCase))
{
calc = Percent.Zero;
}
else if (ident.Equals(maxIdentifier, StringComparison.OrdinalIgnoreCase))
{
calc = Percent.Hundred;
}
else if (ident.Equals(Keywords.Center, StringComparison.OrdinalIgnoreCase))
{
calc = Percent.Fifty;
}
}
}
return(calc);
}
static IDistance GetMode(CSSValue value, String minIdentifier, String maxIdentifier)
{
var calc = value.ToDistance();
if (calc == null)
{
var ident = value.ToIdentifier();
if (ident != null)
{
if (ident.Equals(minIdentifier, StringComparison.OrdinalIgnoreCase))
{
calc = Percent.Zero;
}
else if (ident.Equals(maxIdentifier, StringComparison.OrdinalIgnoreCase))
{
calc = Percent.Hundred;
}
else if (ident.Equals(Keywords.Center, StringComparison.OrdinalIgnoreCase))
{
calc = Percent.Fifty;
}
}
}
return(calc);
}
Boolean SetSingle(CSSValue value)
{
var calc = value.ToDistance();
if (calc != null)
{
_x = calc;
_y = calc;
return(true);
}
var ident = value.ToIdentifier();
if (ident != null)
{
if (ident.Equals(Keywords.Left, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Zero;
_y = Percent.Fifty;
_z = Percent.Zero;
return(true);
}
else if (ident.Equals(Keywords.Center, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Fifty;
_y = Percent.Fifty;
_z = Percent.Zero;
return(true);
}
else if (ident.Equals(Keywords.Right, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Hundred;
_y = Percent.Fifty;
_z = Percent.Zero;
return(true);
}
else if (ident.Equals(Keywords.Top, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Fifty;
_y = Percent.Zero;
_z = Percent.Zero;
return(true);
}
else if (ident.Equals(Keywords.Bottom, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Fifty;
_y = Percent.Hundred;
_z = Percent.Zero;
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 distance = value.ToDistance();
if (distance != null)
{
_padding = distance;
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 indent = value.ToDistance();
if (indent != null)
{
_indent = indent;
return(true);
}
return(false);
}
Boolean SetSingle(CSSValue value)
{
var distance = value.ToDistance();
if (distance != null)
{
_x = distance;
_y = distance;
return(true);
}
var primitive = value as CSSPrimitiveValue;
if (primitive != null && primitive.Unit == UnitType.Ident)
{
var ident = primitive.GetString();
if (ident.Equals(Keywords.Left, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Zero;
_y = Percent.Fifty;
return(true);
}
else if (ident.Equals(Keywords.Right, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Hundred;
_y = Percent.Fifty;
return(true);
}
else if (ident.Equals(Keywords.Center, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Fifty;
_y = Percent.Fifty;
return(true);
}
else if (ident.Equals(Keywords.Top, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Fifty;
_y = Percent.Zero;
return(true);
}
else if (ident.Equals(Keywords.Bottom, StringComparison.OrdinalIgnoreCase))
{
_x = Percent.Fifty;
_y = Percent.Hundred;
return(true);
}
}
return(false);
}
static SizeMode?Check(CSSValue horizontal, CSSValue vertical)
{
var width = horizontal.ToDistance();
var height = vertical.ToDistance();
if (width == null && !horizontal.Is(Keywords.Auto))
{
return(null);
}
else if (height == null && !vertical.Is(Keywords.Auto))
{
return(null);
}
return(new SizeMode {
Width = width, Height = height
});
}
/// <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 distance = value.ToDistance();
if (distance != null)
{
_value = distance;
}
else if (value.Is(Keywords.Auto))
{
_value = 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 calc = value.ToDistance();
if (calc != null)
{
_top = _bottom = _right = _left = calc;
}
else if (value is CSSValueList)
{
return(Evaluate((CSSValueList)value));
}
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)
{
VerticalAlignment mode;
var distance = value.ToDistance();
if (distance != null)
{
_shift = distance;
_mode = VerticalAlignment.Baseline;
}
else if (modes.TryGetValue(value, out mode))
{
_shift = Percent.Zero;
_mode = mode;
}
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)
{
FontSize?size;
var distance = value.ToDistance();
if (distance != null)
{
_size = distance;
_mode = FontSize.Custom;
}
else if ((size = value.ToFontSize()).HasValue)
{
var mode = size.Value;
_size = mode.ToDistance();
_mode = mode;
}
else
{
return(false);
}
return(true);
}