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Java Source | 2002-09-06 | 3.2 KB | 102 lines |
- /*
- * Copyright (c) 2002 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * -Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * -Redistribution in binary form must reproduct the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
- * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
- * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT
- * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT
- * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE SOFTWARE OR ITS
- * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
- * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
- * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
- * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN
- * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that Software is not designed, licensed or intended for
- * use in the design, construction, operation or maintenance of any nuclear
- * facility.
- */
-
- /*
- * @(#)LinkArea.java 1.11 02/06/13
- */
-
- import java.awt.Graphics;
- import java.net.URL;
- import java.net.MalformedURLException;
-
- /**
- * The classic "Fetch a URL" ImageArea class.
- * This class extends the basic ImageArea Class to fetch a URL when
- * the user clicks in the area.
- *
- * @author Jim Graham
- * @version 1.11, 06/13/02
- */
- class LinkArea extends ImageMapArea {
- /** The URL to be fetched when the user clicks on this area. */
- URL anchor;
-
- /**
- * The argument string is the URL to be fetched.
- */
- public void handleArg(String arg) {
- try {
- anchor = new URL(parent.getDocumentBase(), arg);
- } catch (MalformedURLException e) {
- anchor = null;
- }
- }
-
- /**
- * The isTerminal method indicates whether events should propagate
- * to the areas underlying this one.
- */
- public boolean isTerminal() {
- return true;
- }
-
- /**
- * The status message area is updated to show the destination URL.
- */
- public void enter() {
- showStatus((anchor != null)
- ? "Go To " + anchor.toExternalForm()
- : null);
- }
-
- /**
- * The status message area is updated to show the destination URL.
- */
- public void exit() {
- showStatus(null);
- }
-
- /**
- * The new URL is fetched when the user releases the mouse button
- * only if they are still in the area.
- */
- public boolean lift(int x, int y) {
- if (inside(x, y) && anchor != null) {
- showDocument(anchor);
- }
- return true;
- }
- }
-