| /* DomHTMLElement.java -- |
| Copyright (C) 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.xml.dom.html2; |
| |
| import gnu.xml.dom.DomDOMException; |
| import gnu.xml.dom.DomElement; |
| import gnu.xml.dom.DomEvent; |
| import org.w3c.dom.DOMException; |
| import org.w3c.dom.NamedNodeMap; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.events.UIEvent; |
| import org.w3c.dom.html2.HTMLElement; |
| |
| /** |
| * Abstract implementation of an HTML element node. |
| * |
| * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> |
| */ |
| public abstract class DomHTMLElement |
| extends DomElement |
| implements HTMLElement |
| { |
| |
| protected DomHTMLElement(DomHTMLDocument owner, String namespaceURI, |
| String name) |
| { |
| super(owner, namespaceURI, name); |
| } |
| |
| /** |
| * Returns the value of the specified attribute. |
| * The attribute name is case insensitive. |
| */ |
| protected String getHTMLAttribute(String name) |
| { |
| if (hasAttributes()) |
| { |
| NamedNodeMap attrs = getAttributes(); |
| int len = attrs.getLength(); |
| for (int i = 0; i < len; i++) |
| { |
| Node attr = attrs.item(i); |
| String attrName = attr.getLocalName(); |
| if (attrName == null) |
| { |
| attrName = attr.getNodeName(); |
| } |
| if (attrName.equalsIgnoreCase(name)) |
| { |
| return attr.getNodeValue(); |
| } |
| } |
| } |
| return ""; |
| } |
| |
| protected int getIntHTMLAttribute(String name) |
| { |
| String value = getHTMLAttribute(name); |
| if (value == null) |
| { |
| return -1; |
| } |
| try |
| { |
| return Integer.parseInt(value); |
| } |
| catch (NumberFormatException e) |
| { |
| return -1; |
| } |
| } |
| |
| protected boolean getBooleanHTMLAttribute(String name) |
| { |
| String value = getHTMLAttribute(name); |
| return value != null; |
| } |
| |
| /** |
| * Sets the value of the specified attribute. |
| * The attribute name is case insensitive. |
| */ |
| protected void setHTMLAttribute(String name, String value) |
| { |
| Node attr; |
| NamedNodeMap attrs = getAttributes(); |
| int len = attrs.getLength(); |
| for (int i = 0; i < len; i++) |
| { |
| attr = attrs.item(i); |
| String attrName = attr.getLocalName(); |
| if (attrName == null) |
| { |
| attrName = attr.getNodeName(); |
| } |
| if (attrName.equalsIgnoreCase(name)) |
| { |
| if (value != null) |
| { |
| attr.setNodeValue(value); |
| } |
| else |
| { |
| attrs.removeNamedItem(attr.getNodeName()); |
| } |
| return; |
| } |
| } |
| if (value != null) |
| { |
| // Create a new attribute |
| DomHTMLDocument doc = (DomHTMLDocument) getOwnerDocument(); |
| // XXX namespace URI for attribute? |
| attr = doc.createAttribute(name); |
| attr.setNodeValue(value); |
| } |
| } |
| |
| protected void setIntHTMLAttribute(String name, int value) |
| { |
| setHTMLAttribute(name, Integer.toString(value)); |
| } |
| |
| protected void setBooleanHTMLAttribute(String name, boolean value) |
| { |
| setHTMLAttribute(name, value ? name : null); |
| } |
| |
| /** |
| * Returns the first parent element with the specified name. |
| */ |
| protected Node getParentElement(String name) |
| { |
| for (Node parent = getParentNode(); parent != null; |
| parent = parent.getParentNode()) |
| { |
| String parentName = parent.getLocalName(); |
| if (parentName == null) |
| { |
| parentName = parent.getNodeName(); |
| } |
| if (name.equalsIgnoreCase(parentName)) |
| { |
| return parent; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the first child element with the specified name. |
| */ |
| protected Node getChildElement(String name) |
| { |
| for (Node child = getFirstChild(); child != null; |
| child = child.getNextSibling()) |
| { |
| String childName = child.getLocalName(); |
| if (childName == null) |
| { |
| childName = child.getLocalName(); |
| } |
| if (name.equalsIgnoreCase(childName)) |
| { |
| return child; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the index of this element among elements of the same name, |
| * relative to its parent. |
| */ |
| protected int getIndex() |
| { |
| int index = 0; |
| Node parent = getParentNode(); |
| if (parent != null) |
| { |
| for (Node ctx = parent.getFirstChild(); ctx != null; |
| ctx = ctx.getNextSibling()) |
| { |
| if (ctx == this) |
| { |
| return index; |
| } |
| index++; |
| } |
| } |
| throw new DomDOMException(DOMException.NOT_FOUND_ERR); |
| } |
| |
| protected void dispatchUIEvent(String name) |
| { |
| UIEvent event = new DomEvent.DomUIEvent(name); |
| dispatchEvent(event); |
| } |
| |
| public String getId() |
| { |
| return getHTMLAttribute("id"); |
| } |
| |
| public void setId(String id) |
| { |
| setHTMLAttribute("id", id); |
| } |
| |
| public String getTitle() |
| { |
| return getHTMLAttribute("title"); |
| } |
| |
| public void setTitle(String title) |
| { |
| setHTMLAttribute("title", title); |
| } |
| |
| public String getLang() |
| { |
| return getHTMLAttribute("lang"); |
| } |
| |
| public void setLang(String lang) |
| { |
| setHTMLAttribute("lang", lang); |
| } |
| |
| public String getDir() |
| { |
| return getHTMLAttribute("dir"); |
| } |
| |
| public void setDir(String dir) |
| { |
| setHTMLAttribute("dir", dir); |
| } |
| |
| public String getClassName() |
| { |
| return getHTMLAttribute("class"); |
| } |
| |
| public void setClassName(String className) |
| { |
| setHTMLAttribute("class", className); |
| } |
| |
| } |
| |