public TextPosition FillDeclarations(StyleDeclaration style)
{
var finalProperties = new Dictionary <string, IProperty>(StringComparer.OrdinalIgnoreCase);
var token = NextToken();
_nodes.Push(style);
ParseComments(ref token);
while (token.IsNot(TokenType.EndOfFile, TokenType.CurlyBracketClose))
{
var sourceProperty = CreateDeclarationWith(PropertyFactory.Instance.Create, ref token);
var resolvedProperties = new[] { sourceProperty };
if ((sourceProperty != null) && sourceProperty.HasValue)
{
// For shorthand properties we need to first find out what alternate set of properties they will
// end up resolving into so that we can compare them with their previously parsed counterparts (if any)
// and determine which one takes priority over the other.
// Example 1: "margin-left: 5px !important; text-align:center; margin: 3px;";
// Example 2: "margin: 5px !important; text-align:center; margin-left: 3px;";
if (sourceProperty is ShorthandProperty)
{
var shorthandProperty = sourceProperty as ShorthandProperty;
resolvedProperties = PropertyFactory.Instance.CreateLonghandsFor(shorthandProperty.Name);
shorthandProperty.Export(resolvedProperties);
}
foreach (var resolvedProperty in resolvedProperties)
{
// The following relies on the fact that the tokens are processed in
// top-to-bottom order of how they are defined in the parsed style declaration.
// This handles exposing the correct value for a property when it appears multiple
// times in the same style declaration.
// Example: "background-color:green !important; text-align:center; background-color:yellow;";
// In this example even though background-color yellow is defined last, the previous value
// of green should be he one exposed given it is tagged as important.
// ------------------------------------------------------------------------------------------
// Only set this property if one of the following conditions is true:
// a) It was not previously added or...
// b) The previously added property is not tagged as important or ...
// c) The previously added property is tagged as important but so is this new one.
var shouldSetProperty =
!finalProperties.TryGetValue(resolvedProperty.Name, out var previousProperty) ||
!previousProperty.IsImportant ||
resolvedProperty.IsImportant;
if (shouldSetProperty)
{
style.SetProperty(resolvedProperty);
finalProperties[resolvedProperty.Name] = resolvedProperty;
}
}
}
ParseComments(ref token);
}
_nodes.Pop();
return(token.Position);
}
public TextPosition FillDeclarations(StyleDeclaration style)
{
var token = NextToken();
_nodes.Push(style);
ParseComments(ref token);
while (token.IsNot(TokenType.EndOfFile, TokenType.CurlyBracketClose))
{
//var property = CreateDeclarationWith(Factory.Properties.Create, ref token);
var property = CreateDeclarationWith(PropertyFactory.Instance.Create, ref token);
if ((property != null) && property.HasValue)
{
style.SetProperty(property);
}
ParseComments(ref token);
}
_nodes.Pop();
return token.Position;
}
