/*
* Copyright (c) 1997, 2001, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.swing.event;
import java.util.EventObject;
import java.net.URL;
import javax.swing.text.Element;
/**
* HyperlinkEvent is used to notify interested parties that
* something has happened with respect to a hypertext link.
* <p>
* <strong>Warning:</strong>
* Serialized objects of this class will not be compatible with
* future Swing releases. The current serialization support is
* appropriate for short term storage or RMI between applications running
* the same version of Swing. As of 1.4, support for long term storage
* of all JavaBeans<sup><font size="-2">TM</font></sup>
* has been added to the <code>java.beans</code> package.
* Please see {@link java.beans.XMLEncoder}.
*
* @author Timothy Prinzing
*/
public class HyperlinkEvent extends EventObject {
/**
* Creates a new object representing a hypertext link event.
* The other constructor is preferred, as it provides more
* information if a URL could not be formed. This constructor
* is primarily for backward compatibility.
*
* @param source the object responsible for the event
* @param type the event type
* @param u the affected URL
*/
public HyperlinkEvent(Object source, EventType type, URL u) {
this(source, type, u, null);
}
/**
* Creates a new object representing a hypertext link event.
*
* @param source the object responsible for the event
* @param type the event type
* @param u the affected URL. This may be null if a valid URL
* could not be created.
* @param desc the description of the link. This may be useful
* when attempting to form a URL resulted in a MalformedURLException.
* The description provides the text used when attempting to form the
* URL.
*/
public HyperlinkEvent(Object source, EventType type, URL u, String desc) {
this(source, type, u, desc, null);
}
/**
* Creates a new object representing a hypertext link event.
*
* @param source the object responsible for the event
* @param type the event type
* @param u the affected URL. This may be null if a valid URL
* could not be created.
* @param desc the description of the link. This may be useful
* when attempting to form a URL resulted in a MalformedURLException.
* The description provides the text used when attempting to form the
* URL.
* @param sourceElement Element in the Document representing the
* anchor
* @since 1.4
*/
public HyperlinkEvent(Object source, EventType type, URL u, String desc,
Element sourceElement) {
super(source);
this.type = type;
this.u = u;
this.desc = desc;
this.sourceElement = sourceElement;
}
/**
* Gets the type of event.
*
* @return the type
*/
public EventType getEventType() {
return type;
}
/**
* Get the description of the link as a string.
* This may be useful if a URL can't be formed
* from the description, in which case the associated
* URL would be null.
*/
public String getDescription() {
return desc;
}
/**
* Gets the URL that the link refers to.
*
* @return the URL
*/
public URL getURL() {
return u;
}
/**
* Returns the <code>Element</code> that corresponds to the source of the
* event. This will typically be an <code>Element</code> representing
* an anchor. If a constructur that is used that does not specify a source
* <code>Element</code>, or null was specified as the source
* <code>Element</code>, this will return null.
*
* @return Element indicating source of event, or null
* @since 1.4
*/
public Element getSourceElement() {
return sourceElement;
}
private EventType type;
private URL u;
private String desc;
private Element sourceElement;
/**
* Defines the ENTERED, EXITED, and ACTIVATED event types, along
* with their string representations, returned by toString().
*/
public static final class EventType {
private EventType(String s) {
typeString = s;
}
/**
* Entered type.
*/
public static final EventType ENTERED = new EventType("ENTERED");
/**
* Exited type.
*/
public static final EventType EXITED = new EventType("EXITED");
/**
* Activated type.
*/
public static final EventType ACTIVATED = new EventType("ACTIVATED");
/**
* Converts the type to a string.
*
* @return the string
*/
public String toString() {
return typeString;
}
private String typeString;
}
}