133 lines
4 KiB
Java
133 lines
4 KiB
Java
/* htmlAttributeSet.java -- A set to store HTML attributes
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.javax.swing.text.html.parser;
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import java.util.Enumeration;
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import javax.swing.text.AttributeSet;
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import javax.swing.text.SimpleAttributeSet;
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import javax.swing.text.html.HTML;
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/**
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* A set, adapted to store HTML attributes.
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public class htmlAttributeSet
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extends SimpleAttributeSet
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{
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public static final htmlAttributeSet EMPTY_HTML_ATTRIBUTE_SET =
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new htmlAttributeSet();
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AttributeSet parent;
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/**
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* Looks in this set and, if not found, later looks in the parent set.
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* Calls toString(), allowing to pass as HTML.Attribute, as String
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* to this method.
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* @param key A key to search for a value.
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* @return The value, if one is defined.
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*/
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public Object getAttribute(Object _key)
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{
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Object key = _key.toString().toLowerCase();
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Object v = super.getAttribute(key);
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if (v != null)
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return v;
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else if (parent != null)
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return parent.getAttribute(key);
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else
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return null;
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}
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/**
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* The name set must return HTML.Attribute and not a string,
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* where applicable.
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*/
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public Enumeration getAttributeNames()
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{
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// Replace the string keys by HTML.attribute, where applicable
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final Enumeration enumeration = super.getAttributeNames();
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return new Enumeration()
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{
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public boolean hasMoreElements()
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{
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return enumeration.hasMoreElements();
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}
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public Object nextElement()
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{
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Object key = enumeration.nextElement();
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HTML.Attribute hKey = HTML.getAttributeKey((String) key);
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if (hKey != null)
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return hKey;
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else
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return key;
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}
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};
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}
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/**
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* Set the parent set, containing the default values.
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* @param a_parent
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*/
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public void setResolveParent(AttributeSet a_parent)
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{
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parent = a_parent;
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}
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/**
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* Get the parent set, containing the default values.
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* @return
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*/
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public AttributeSet getResolveParent()
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{
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return parent;
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}
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/**
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* Add the attribute to this attribute set.
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* @param key Attribute key (will be case insensitive)
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* @param value Attribute value
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*/
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public void addAttribute(Object key, Object value)
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{
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super.addAttribute(key.toString().toLowerCase(), value);
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}
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}
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