protected CSSValue parseFirstPosition(final LexicalUnit value) {
if (value == null) {
return null;
}
if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT) {
if ("left".equalsIgnoreCase(value.getStringValue())) {
return LEFT;
} else if ("center".equalsIgnoreCase(value.getStringValue())) {
return CENTER;
} else if ("right".equalsIgnoreCase(value.getStringValue())) {
return RIGHT;
} else if ("top".equalsIgnoreCase(value.getStringValue())) {
return TOP;
} else if ("bottom".equalsIgnoreCase(value.getStringValue())) {
return BOTTOM;
}
// ignore this rule.
return null;
}
if (value.getLexicalUnitType() == LexicalUnit.SAC_PERCENTAGE) {
return CSSNumericValue.createValue(CSSNumericType.PERCENTAGE, value.getFloatValue());
}
if (CSSValueFactory.isLengthValue(value)) {
return CSSValueFactory.createLengthValue(value);
}
// contains errors, we ignore this rule.
return null;
}
public CSSValue createValue(StyleKey name, LexicalUnit value) {
if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT) {
final String text = value.getStringValue();
if (ContentValues.NONE.getCSSText().equals(text)) {
return ContentValues.NONE;
}
if (ContentValues.INHIBIT.getCSSText().equals(text)) {
return ContentValues.INHIBIT;
}
if (ContentValues.NORMAL.getCSSText().equals(text)) {
return ContentValues.NORMAL;
}
}
final ArrayList contents = new ArrayList();
final ArrayList contentList = new ArrayList();
while (value != null) {
if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT) {
CSSValue o = lookupValue(value);
if (o == null) {
// parse error ...
return null;
}
contentList.add(o);
} else if (value.getLexicalUnitType() == LexicalUnit.SAC_STRING_VALUE) {
contentList.add(new CSSStringValue(CSSStringType.STRING, value.getStringValue()));
} else if (value.getLexicalUnitType() == LexicalUnit.SAC_URI) {
final CSSStringValue uriValue = CSSValueFactory.createUriValue(value);
if (uriValue == null) {
return null;
}
contentList.add(uriValue);
} else if (value.getLexicalUnitType() == LexicalUnit.SAC_FUNCTION
|| value.getLexicalUnitType() == LexicalUnit.SAC_COUNTER_FUNCTION
|| value.getLexicalUnitType() == LexicalUnit.SAC_COUNTERS_FUNCTION) {
final CSSFunctionValue functionValue = CSSValueFactory.parseFunction(value);
if (functionValue == null) {
return null;
}
contentList.add(functionValue);
} else if (value.getLexicalUnitType() == LexicalUnit.SAC_ATTR) {
final CSSAttrFunction attrFn = CSSValueFactory.parseAttrFunction(value);
if (attrFn == null) {
return null;
}
contentList.add(attrFn);
} else if (value.getLexicalUnitType() == LexicalUnit.SAC_OPERATOR_COMMA) {
final CSSValue[] values =
(CSSValue[]) contentList.toArray(new CSSValue[contentList.size()]);
contents.add(new CSSValueList(values));
contentList.clear();
}
value = value.getNextLexicalUnit();
}
final CSSValue[] values = (CSSValue[]) contentList.toArray(new CSSValue[contentList.size()]);
contents.add(new CSSValueList(values));
return new CSSValueList(contents);
}
public CSSValue createValue(StyleKey name, LexicalUnit value) {
if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT) {
if (value.getStringValue().equalsIgnoreCase("none")) {
return new CSSConstant("none");
}
}
return CSSValueFactory.createNumericValue(value);
}
private CSSValue parseSingleSpacingValue(final LexicalUnit value) {
if (value == null) {
return null;
}
if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT) {
if (value.getStringValue().equalsIgnoreCase("normal")) {
return SpacingLimitReadHandler.NORMAL;
}
return null;
}
if (value.getLexicalUnitType() == LexicalUnit.SAC_PERCENTAGE) {
return CSSNumericValue.createValue(CSSNumericType.PERCENTAGE, value.getFloatValue());
}
return CSSValueFactory.createLengthValue(value);
}
public CSSValue createValue(StyleKey name, LexicalUnit value) {
// normalization is deferred until we compute the value.
return CSSValueFactory.createNumericValue(value);
}