/*
Copyright 2003 The Apache Software Foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.batik.css.engine.value.css2;
import org.apache.batik.css.engine.CSSEngine;
import org.apache.batik.css.engine.value.IdentifierManager;
import org.apache.batik.css.engine.value.ListValue;
import org.apache.batik.css.engine.value.StringMap;
import org.apache.batik.css.engine.value.StringValue;
import org.apache.batik.css.engine.value.URIValue;
import org.apache.batik.css.engine.value.Value;
import org.apache.batik.css.engine.value.ValueConstants;
import org.apache.batik.css.engine.value.ValueManager;
import org.apache.batik.util.CSSConstants;
import org.w3c.dom.css.CSSPrimitiveValue;
import org.w3c.dom.DOMException;
import org.w3c.css.sac.LexicalUnit;
/**
* One line Class Desc
*
* Complete Class Desc
*
* @author <a href="mailto:deweese@apache.org">l449433</a>
* @version $Id: SrcManager.java,v 1.8 2005/03/27 08:58:31 cam Exp $
*/
public class SrcManager extends IdentifierManager {
/**
* The identifier values.
*/
protected final static StringMap values = new StringMap();
static {
values.put(CSSConstants.CSS_NONE_VALUE,
ValueConstants.NONE_VALUE);
}
public SrcManager() {
}
/**
* Implements {@link
* org.apache.batik.css.engine.value.ValueManager#isInheritedProperty()}.
*/
public boolean isInheritedProperty() {
return false;
}
/**
* Implements {@link
* org.apache.batik.css.engine.value.ValueManager#getPropertyName()}.
*/
public String getPropertyName() {
return CSSConstants.CSS_SRC_PROPERTY;
}
/**
* Implements {@link
* org.apache.batik.css.engine.value.ValueManager#getDefaultValue()}.
*/
public Value getDefaultValue() {
return ValueConstants.NONE_VALUE;
}
/**
* Implements {@link ValueManager#createValue(LexicalUnit,CSSEngine)}.
*/
public Value createValue(LexicalUnit lu, CSSEngine engine)
throws DOMException {
switch (lu.getLexicalUnitType()) {
case LexicalUnit.SAC_INHERIT:
return ValueConstants.INHERIT_VALUE;
default:
throw createInvalidLexicalUnitDOMException
(lu.getLexicalUnitType());
case LexicalUnit.SAC_IDENT:
case LexicalUnit.SAC_STRING_VALUE:
case LexicalUnit.SAC_URI:
}
ListValue result = new ListValue();
for (;;) {
switch (lu.getLexicalUnitType()) {
case LexicalUnit.SAC_STRING_VALUE:
result.append(new StringValue(CSSPrimitiveValue.CSS_STRING,
lu.getStringValue()));
lu = lu.getNextLexicalUnit();
break;
case LexicalUnit.SAC_URI:
String uri = resolveURI(engine.getCSSBaseURI(),
lu.getStringValue());
result.append(new URIValue(lu.getStringValue(), uri));
lu = lu.getNextLexicalUnit();
if ((lu != null) &&
(lu.getLexicalUnitType() == LexicalUnit.SAC_FUNCTION)) {
if (!lu.getFunctionName().equalsIgnoreCase("format")) {
break;
}
// Format really does us no good so just ignore it.
// TODO: Should probably turn this into a ListValue
// and append the format function CSS Value.
lu = lu.getNextLexicalUnit();
}
break;
case LexicalUnit.SAC_IDENT:
StringBuffer sb = new StringBuffer(lu.getStringValue());
lu = lu.getNextLexicalUnit();
if (lu != null &&
lu.getLexicalUnitType() == LexicalUnit.SAC_IDENT) {
do {
sb.append(' ');
sb.append(lu.getStringValue());
lu = lu.getNextLexicalUnit();
} while (lu != null &&
lu.getLexicalUnitType() == LexicalUnit.SAC_IDENT);
result.append(new StringValue(CSSPrimitiveValue.CSS_STRING,
sb.toString()));
} else {
String id = sb.toString();
String s = id.toLowerCase().intern();
Value v = (Value)values.get(s);
result.append((v != null)
? v
: new StringValue
(CSSPrimitiveValue.CSS_STRING, id));
}
break;
}
if (lu == null) {
return result;
}
if (lu.getLexicalUnitType() != LexicalUnit.SAC_OPERATOR_COMMA) {
throw createInvalidLexicalUnitDOMException
(lu.getLexicalUnitType());
}
lu = lu.getNextLexicalUnit();
if (lu == null) {
throw createMalformedLexicalUnitDOMException();
}
}
}
/**
* Implements {@link IdentifierManager#getIdentifiers()}.
*/
public StringMap getIdentifiers() {
return values;
}
}