public StyleValueImporter(AssetImportContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
m_Context = context;
m_AssetPath = context.assetPath;
m_Parser = new Parser();
m_Builder = new StyleSheetBuilder();
m_Errors = new StyleSheetImportErrors();
m_Validator = new StyleValidator();
}
protected virtual void OnImportError(StyleSheetImportErrors errors)
{
if (m_Context == null)
{
return;
}
foreach (var e in errors)
{
if (e.isWarning)
{
m_Context.LogImportWarning(e.ToString(), e.assetPath, e.line);
}
else
{
m_Context.LogImportError(e.ToString(), e.assetPath, e.line);
}
}
}
internal static void VisitValue(StyleSheetImportErrors errors, StyleSheetBuilder ssb, Term term)
{
PrimitiveTerm primitiveTerm = term as PrimitiveTerm;
HtmlColor htmlColor = term as HtmlColor;
GenericFunction genericFunction = term as GenericFunction;
TermList termList = term as TermList;
if (term == Term.Inherit)
{
ssb.AddValue(StyleValueKeyword.Inherit);
}
else if (primitiveTerm != null)
{
string text = term.ToString();
UnitType primitiveType = primitiveTerm.PrimitiveType;
switch (primitiveType)
{
case UnitType.String:
{
string value = text.Trim(new char[]
{
'\'',
'"'
});
ssb.AddValue(value, StyleValueType.String);
goto IL_F9;
}
case UnitType.Uri:
IL_63:
if (primitiveType != UnitType.Number && primitiveType != UnitType.Pixel)
{
errors.AddSemanticError(StyleSheetImportErrorCode.UnsupportedUnit, primitiveTerm.ToString());
return;
}
ssb.AddValue(primitiveTerm.GetFloatValue(UnitType.Pixel).Value);
goto IL_F9;
case UnitType.Ident:
{
StyleValueKeyword keyword;
if (StyleSheetImporterImpl.TryParseKeyword(text, out keyword))
{
ssb.AddValue(keyword);
}
else
{
ssb.AddValue(text, StyleValueType.Enum);
}
goto IL_F9;
}
}
goto IL_63;
IL_F9 :;
}
else if (htmlColor != null)
{
Color value2 = new Color((float)htmlColor.R / 255f, (float)htmlColor.G / 255f, (float)htmlColor.B / 255f, (float)htmlColor.A / 255f);
ssb.AddValue(value2);
}
else if (genericFunction != null)
{
primitiveTerm = (genericFunction.Arguments.FirstOrDefault <Term>() as PrimitiveTerm);
if (genericFunction.Name == "resource" && primitiveTerm != null)
{
string value3 = primitiveTerm.Value as string;
ssb.AddValue(value3, StyleValueType.ResourcePath);
}
else
{
errors.AddSemanticError(StyleSheetImportErrorCode.UnsupportedFunction, genericFunction.Name);
}
}
else if (termList != null)
{
foreach (Term current in termList)
{
StyleSheetImporterImpl.VisitValue(errors, ssb, current);
}
}
else
{
errors.AddInternalError(term.GetType().Name);
}
}
public StyleSheetImporterImpl()
{
this.m_Parser = new Parser();
this.m_Builder = new StyleSheetBuilder();
this.m_Errors = new StyleSheetImportErrors();
}
internal static void VisitValue(StyleSheetImportErrors errors, StyleSheetBuilder ssb, Term term)
{
var primitiveTerm = term as PrimitiveTerm;
var colorTerm = term as HtmlColor;
var funcTerm = term as GenericFunction;
var termList = term as TermList;
if (term == PrimitiveTerm.Inherit)
{
ssb.AddValue(StyleValueKeyword.Inherit);
}
else if (primitiveTerm != null)
{
string rawStr = term.ToString();
switch (primitiveTerm.PrimitiveType)
{
case UnitType.Pixel:
case UnitType.Number:
float?floatValue = primitiveTerm.GetFloatValue(UnitType.Pixel);
ssb.AddValue(floatValue.Value);
break;
case UnitType.Ident:
StyleValueKeyword keyword;
if (TryParseKeyword(rawStr, out keyword))
{
ssb.AddValue(keyword);
}
else
{
ssb.AddValue(rawStr, StyleValueType.Enum);
}
break;
case UnitType.String:
string unquotedStr = rawStr.Trim('\'', '\"');
ssb.AddValue(unquotedStr, StyleValueType.String);
break;
default:
errors.AddSemanticError(StyleSheetImportErrorCode.UnsupportedUnit, primitiveTerm.ToString());
return;
}
}
else if (colorTerm != null)
{
var color = new Color((float)colorTerm.R / 255.0f, (float)colorTerm.G / 255.0f, (float)colorTerm.B / 255.0f, (float)colorTerm.A / 255.0f);
ssb.AddValue(color);
}
else if (funcTerm != null)
{
primitiveTerm = funcTerm.Arguments.FirstOrDefault() as PrimitiveTerm;
if (funcTerm.Name == k_ResourcePathFunctionName && primitiveTerm != null)
{
string path = primitiveTerm.Value as string;
ssb.AddValue(path, StyleValueType.ResourcePath);
}
else
{
errors.AddSemanticError(StyleSheetImportErrorCode.UnsupportedFunction, funcTerm.Name);
}
}
else if (termList != null)
{
foreach (Term childTerm in termList)
{
VisitValue(errors, ssb, childTerm);
}
return;
}
else
{
errors.AddInternalError(term.GetType().Name);
}
}