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/*
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You 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.anim.dom;
import org.apache.batik.css.engine.CSSEngine;
import org.apache.batik.css.engine.CSSStyleSheetNode;
import org.apache.batik.css.engine.StyleSheet;
import org.apache.batik.dom.AbstractDocument;
import org.apache.batik.dom.util.XMLSupport;
import org.apache.batik.util.ParsedURL;
import org.apache.batik.util.SVGConstants;
import org.apache.batik.constants.XMLConstants;
import org.w3c.dom.DOMException;
import org.w3c.dom.Node;
import org.w3c.dom.events.Event;
import org.w3c.dom.events.EventListener;
import org.w3c.dom.stylesheets.LinkStyle;
import org.w3c.dom.svg.SVGStyleElement;
/**
* This class implements {@link SVGStyleElement}.
*
* @author Stephane Hillion
* @version $Id: SVGOMStyleElement.java 1851346 2019-01-15 13:41:00Z ssteiner $
*/
public class SVGOMStyleElement
extends SVGOMElement
implements CSSStyleSheetNode,
SVGStyleElement,
LinkStyle {
// /**
// * Table mapping XML attribute names to TraitInformation objects.
// */
// protected static DoublyIndexedTable xmlTraitInformation;
// static {
// DoublyIndexedTable t =
// new DoublyIndexedTable(SVGOMElement.xmlTraitInformation);
// t.put(null, SVG_MEDIA_ATTRIBUTE,
// new TraitInformation(false, SVGTypes.TYPE_CDATA));
// t.put(null, SVG_TITLE_ATTRIBUTE,
// new TraitInformation(false, SVGTypes.TYPE_CDATA));
// t.put(null, SVG_TYPE_ATTRIBUTE,
// new TraitInformation(false, SVGTypes.TYPE_CDATA));
// xmlTraitInformation = t;
// }
/**
* The attribute initializer.
*/
protected static final AttributeInitializer attributeInitializer;
static {
attributeInitializer = new AttributeInitializer(1);
attributeInitializer.addAttribute(XMLSupport.XML_NAMESPACE_URI,
"xml", "space", "preserve");
}
/**
* The style sheet.
*/
protected transient org.w3c.dom.stylesheets.StyleSheet sheet;
/**
* The DOM CSS style-sheet.
*/
protected transient StyleSheet styleSheet;
/**
* The listener used to track the content changes.
*/
protected transient EventListener domCharacterDataModifiedListener =
new DOMCharacterDataModifiedListener();
/**
* Creates a new SVGOMStyleElement object.
*/
protected SVGOMStyleElement() {
}
/**
* Creates a new SVGOMStyleElement object.
* @param prefix The namespace prefix.
* @param owner The owner document.
*/
public SVGOMStyleElement(String prefix, AbstractDocument owner) {
super(prefix, owner);
}
/**
* DOM: Implements {@link org.w3c.dom.Node#getLocalName()}.
*/
public String getLocalName() {
return SVG_STYLE_TAG;
}
/**
* Returns the associated style-sheet.
*/
public StyleSheet getCSSStyleSheet() {
if (styleSheet == null) {
if (getType().equals(SVGConstants.CSS_MIME_TYPE)) {
SVGOMDocument doc = (SVGOMDocument)getOwnerDocument();
CSSEngine e = doc.getCSSEngine();
String text = "";
Node n = getFirstChild();
if (n != null) {
StringBuffer sb = new StringBuffer();
while (n != null) {
if (n.getNodeType() == Node.CDATA_SECTION_NODE
|| n.getNodeType() == Node.TEXT_NODE)
sb.append(n.getNodeValue());
n = n.getNextSibling();
}
text = sb.toString();
}
ParsedURL burl = null;
String bu = getBaseURI();
if (bu != null) {
burl = new ParsedURL(bu);
}
String media = getAttributeNS(null, SVG_MEDIA_ATTRIBUTE);
styleSheet = e.parseStyleSheet(text, burl, media);
addEventListenerNS(XMLConstants.XML_EVENTS_NAMESPACE_URI,
"DOMCharacterDataModified",
domCharacterDataModifiedListener,
false,
null);
}
}
return styleSheet;
}
/**
* DOM: Implements {@link
* org.w3c.dom.stylesheets.LinkStyle#getSheet()}.
*/
public org.w3c.dom.stylesheets.StyleSheet getSheet() {
throw new UnsupportedOperationException
("LinkStyle.getSheet() is not implemented"); // XXX
}
/**
* DOM: Implements {@link SVGStyleElement#getXMLspace()}.
*/
public String getXMLspace() {
return XMLSupport.getXMLSpace(this);
}
/**
* DOM: Implements {@link SVGStyleElement#setXMLspace(String)}.
*/
public void setXMLspace(String space) throws DOMException {
setAttributeNS(XML_NAMESPACE_URI, XML_SPACE_QNAME, space);
}
/**
* DOM: Implements {@link SVGStyleElement#getType()}.
*/
public String getType() {
if (hasAttributeNS(null, SVG_TYPE_ATTRIBUTE))
return getAttributeNS(null, SVG_TYPE_ATTRIBUTE);
else
return SVGConstants.CSS_MIME_TYPE;
}
/**
* DOM: Implements {@link SVGStyleElement#setType(String)}.
*/
public void setType(String type) throws DOMException {
setAttributeNS(null, SVG_TYPE_ATTRIBUTE, type);
}
/**
* DOM: Implements {@link SVGStyleElement#getMedia()}.
*/
public String getMedia() {
return getAttribute(SVG_MEDIA_ATTRIBUTE);
}
/**
* DOM: Implements {@link SVGStyleElement#setMedia(String)}.
*/
public void setMedia(String media) throws DOMException {
setAttribute(SVG_MEDIA_ATTRIBUTE, media);
}
/**
* DOM: Implements {@link SVGStyleElement#getTitle()}.
*/
public String getTitle() {
return getAttribute(SVG_TITLE_ATTRIBUTE);
}
/**
* DOM: Implements {@link SVGStyleElement#setTitle(String)}.
*/
public void setTitle(String title) throws DOMException {
setAttribute(SVG_TITLE_ATTRIBUTE, title);
}
/**
* Returns the AttributeInitializer for this element type.
* @return null if this element has no attribute with a default value.
*/
protected AttributeInitializer getAttributeInitializer() {
return attributeInitializer;
}
/**
* Returns a new uninitialized instance of this object's class.
*/
protected Node newNode() {
return new SVGOMStyleElement();
}
// /**
// * Returns the table of TraitInformation objects for this element.
// */
// protected DoublyIndexedTable getTraitInformationTable() {
// return xmlTraitInformation;
// }
/**
* The DOMCharacterDataModified listener.
*/
protected class DOMCharacterDataModifiedListener
implements EventListener {
public void handleEvent(Event evt) {
styleSheet = null;
}
}
}
