author | Dan Labrecque <dan.labrecque@oracle.com> |
Thu, 24 May 2012 04:16:47 -0400 | |
changeset 827 | 0944d8c0158b |
permissions | -rw-r--r-- |
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/* |
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* CDDL HEADER START |
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* |
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* The contents of this file are subject to the terms of the |
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* Common Development and Distribution License (the "License"). |
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* You may not use this file except in compliance with the License. |
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* |
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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* or http://www.opensolaris.org/os/licensing. |
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* See the License for the specific language governing permissions |
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* and limitations under the License. |
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* |
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* When distributing Covered Code, include this CDDL HEADER in each |
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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* If applicable, add the following below this CDDL HEADER, with the |
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* fields enclosed by brackets "[]" replaced with your own identifying |
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* information: Portions Copyright [yyyy] [name of copyright owner] |
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* |
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* CDDL HEADER END |
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*/ |
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|
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/* |
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* Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved. |
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*/ |
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package com.oracle.solaris.vp.panel.common.control; |
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|
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import java.util.List; |
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|
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/** |
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* The {@code NavigationErrorHandler} class chooses the best path to re-navigate |
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* to on navigation error. If no {@link Control}s were started as a result of |
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* the failed navigation, then the navigation is considered a complete failure |
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* and a navigation back to the previous path is scheduled asynchronously. |
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* Otherwise, a navigation to the current path is scheduled, which will cause |
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* any path returned by {@link Navigator#getCurrentControl the current |
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* Control}'s {@link Control#getForwardingPath} method to be followed. |
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*/ |
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public class NavigationErrorHandler implements NavigationListener { |
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// |
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// NavigationListener methods |
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// |
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@Override |
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public void navigationStarted(NavigationStartEvent e) { |
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} |
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@Override |
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public void navigationStopped(NavigationStopEvent event) { |
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if (!event.getNavigationSuccessful()) { |
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Navigator navigator = event.getSource(); |
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boolean equal = false; |
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Navigable[] last = event.getPreviousPath(); |
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List<Control> current = navigator.getPath(); |
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if (last.length == current.size()) { |
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equal = true; |
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for (int i = 0; i < last.length; i++) { |
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if (!Navigable.Util.equals(last[i], current.get(i))) { |
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equal = false; |
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break; |
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} |
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} |
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} |
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// Only re-navigate if the last path differs from the current path |
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if (!equal) { |
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// If any Controls were started as a result of this navigation, |
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// assume it was successful enough to stay where we are. |
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// Otherwise, go back. |
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if (event.getStarted().isEmpty()) { |
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// Go back |
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navigator.goToAsync(true, null, last); |
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} else { |
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// Navigate to the current path, which will forward to the |
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// current Control's getForwardingPath, if any |
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navigator.goToAsync(true, navigator.getCurrentControl()); |
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} |
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} |
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} |
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} |
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} |