/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999,2000 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package com.sun.org.apache.html.internal.dom;
import java.util.Locale;
import com.sun.org.apache.xerces.internal.dom.ElementImpl;
import org.w3c.dom.Attr;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.html.HTMLElement;
import org.w3c.dom.html.HTMLFormElement;
/**
* Implements an HTML-specific element, an {@link org.w3c.dom.Element} that
* will only appear inside HTML documents. This element extends {@link
* com.sun.org.apache.xerces.internal.dom.ElementImpl} by adding methods for directly
* manipulating HTML-specific attributes. All HTML elements gain access to
* the <code>id</code>, <code>title</code>, <code>lang</code>,
* <code>dir</code> and <code>class</code> attributes. Other elements
* add their own specific attributes.
*
*
* @version $Revision: 1.6 $ $Date: 2003/05/08 20:13:09 $
* @author <a href="mailto:arkin@exoffice.com">Assaf Arkin</a>
* @see org.w3c.dom.html.HTMLElement
*/
public class HTMLElementImpl
extends ElementImpl
implements HTMLElement
{
/**
* Constructor required owner document and element tag name. Will be called
* by the constructor of specific element types but with a known tag name.
* Assures that the owner document is an HTML element.
*
* @param owner The owner HTML document
* @param tagName The element's tag name
*/
HTMLElementImpl( HTMLDocumentImpl owner, String tagName )
{
super( owner, tagName.toUpperCase(Locale.ENGLISH) );
}
public String getId()
{
return getAttribute( "id" );
}
public void setId( String id )
{
setAttribute( "id", id );
}
public String getTitle()
{
return getAttribute( "title" );
}
public void setTitle( String title )
{
setAttribute( "title", title );
}
public String getLang()
{
return getAttribute( "lang" );
}
public void setLang( String lang )
{
setAttribute( "lang", lang );
}
public String getDir()
{
return getAttribute( "dir" );
}
public void setDir( String dir )
{
setAttribute( "dir", dir );
}
public String getClassName()
{
return getAttribute( "class" );
}
public void setClassName( String className )
{
setAttribute( "class", className );
}
/**
* Convenience method used to translate an attribute value into an integer
* value. Returns the integer value or zero if the attribute is not a
* valid numeric string.
*
* @param value The value of the attribute
* @return The integer value, or zero if not a valid numeric string
*/
int getInteger( String value )
{
try
{
return Integer.parseInt( value );
}
catch ( NumberFormatException except )
{
return 0;
}
}
/**
* Convenience method used to translate an attribute value into a boolean
* value. If the attribute has an associated value (even an empty string),
* it is set and true is returned. If the attribute does not exist, false
* is returend.
*
* @param value The value of the attribute
* @return True or false depending on whether the attribute has been set
*/
boolean getBinary( String name )
{
return ( getAttributeNode( name ) != null );
}
/**
* Convenience method used to set a boolean attribute. If the value is true,
* the attribute is set to an empty string. If the value is false, the attribute
* is removed. HTML 4.0 understands empty strings as set attributes.
*
* @param name The name of the attribute
* @param value The value of the attribute
*/
void setAttribute( String name, boolean value )
{
if ( value )
setAttribute( name, name );
else
removeAttribute( name );
}
public Attr getAttributeNode( String attrName )
{
return super.getAttributeNode( attrName.toLowerCase(Locale.ENGLISH) );
}
public Attr getAttributeNodeNS( String namespaceURI,
String localName )
{
if ( namespaceURI != null && namespaceURI.length() > 0 )
return super.getAttributeNodeNS( namespaceURI, localName );
else
return super.getAttributeNode( localName.toLowerCase(Locale.ENGLISH) );
}
public String getAttribute( String attrName )
{
return super.getAttribute( attrName.toLowerCase(Locale.ENGLISH) );
}
public String getAttributeNS( String namespaceURI,
String localName )
{
if ( namespaceURI != null && namespaceURI.length() > 0 )
return super.getAttributeNS( namespaceURI, localName );
else
return super.getAttribute( localName.toLowerCase(Locale.ENGLISH) );
}
public final NodeList getElementsByTagName( String tagName )
{
return super.getElementsByTagName( tagName.toUpperCase(Locale.ENGLISH) );
}
public final NodeList getElementsByTagNameNS( String namespaceURI,
String localName )
{
if ( namespaceURI != null && namespaceURI.length() > 0 )
return super.getElementsByTagNameNS( namespaceURI, localName.toUpperCase(Locale.ENGLISH) );
else
return super.getElementsByTagName( localName.toUpperCase(Locale.ENGLISH) );
}
/**
* Convenience method used to capitalize a one-off attribute value before it
* is returned. For example, the align values "LEFT" and "left" will both
* return as "Left".
*
* @param value The value of the attribute
* @return The capitalized value
*/
String capitalize( String value )
{
char[] chars;
int i;
// Convert string to charactares. Convert the first one to upper case,
// the other characters to lower case, and return the converted string.
chars = value.toCharArray();
if ( chars.length > 0 )
{
chars[ 0 ] = Character.toUpperCase( chars[ 0 ] );
for ( i = 1 ; i < chars.length ; ++i )
chars[ i ] = Character.toLowerCase( chars[ i ] );
return String.valueOf( chars );
}
return value;
}
/**
* Convenience method used to capitalize a one-off attribute value before it
* is returned. For example, the align values "LEFT" and "left" will both
* return as "Left".
*
* @param name The name of the attribute
* @return The capitalized value
*/
String getCapitalized( String name )
{
String value;
char[] chars;
int i;
value = getAttribute( name );
if ( value != null )
{
// Convert string to charactares. Convert the first one to upper case,
// the other characters to lower case, and return the converted string.
chars = value.toCharArray();
if ( chars.length > 0 )
{
chars[ 0 ] = Character.toUpperCase( chars[ 0 ] );
for ( i = 1 ; i < chars.length ; ++i )
chars[ i ] = Character.toLowerCase( chars[ i ] );
return String.valueOf( chars );
}
}
return value;
}
/**
* Convenience method returns the form in which this form element is contained.
* This method is exposed for form elements through the DOM API, but other
* elements have no access to it through the API.
*/
public HTMLFormElement getForm()
{
Node parent;
parent = getParentNode();
while ( parent != null )
{
if ( parent instanceof HTMLFormElement )
return (HTMLFormElement) parent;
parent = parent.getParentNode();
}
return null;
}
}
|
