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1 /* 2 * Copyright (c) 2003 Scott Howlett & Paul Libbrecht. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. The end-user documentation included with the redistribution, 18 * if any, must include the following acknowledgment: 19 * "This product includes software developed by the Xwing 20 * Project ( http://xwing.sourceforge.net/ )." 21 * Alternately, this acknowledgment may appear in the software itself, 22 * if and wherever such third-party acknowledgments normally appear. 23 * 24 * 4. The name "Xwing" must not be used to endorse or promote products 25 * derived from this software without prior written permission. For 26 * written permission, please contact the project authors via 27 * the Xwing project site, http://xwing.sourceforge.net/ . 28 * 29 * 5. Products derived from this software may not be called "Xwing", 30 * nor may "Xwing" appear in their name, without prior written 31 * permission of the Xwing project. 32 * 33 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 34 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 35 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 36 * DISCLAIMED. IN NO EVENT SHALL THE XWING AUTHORS OR THE PROJECT 37 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 38 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 39 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 40 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 41 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 42 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 43 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 44 * SUCH DAMAGE. 45 * 46 * For more information on Xwing, please see 47 * < http://xwing.sourceforge.net/ >. 48 */ 49 50 package net.sourceforge.xwing.jelly.tags.xwing; 51 52 import javax.swing.JTable; 53 import javax.swing.event.ListSelectionEvent; 54 import javax.swing.event.ListSelectionListener; 55 56 import org.apache.commons.jelly.JellyContext; 57 import org.apache.commons.jelly.JellyTagException; 58 import org.apache.commons.jelly.Script; 59 import org.apache.commons.jelly.TagSupport; 60 import org.apache.commons.jelly.XMLOutput; 61 import org.apache.commons.logging.LogFactory; 62 63 public class TableSelectionListenerTag extends TagSupport { 64 65 private String eventVar; 66 private Script script; 67 private JTable table; 68 69 public void doTag(final XMLOutput output) throws JellyTagException { 70 71 if (table == null) { 72 TableTag tag = (TableTag) findAncestorWithClass(TableTag.class); 73 if (tag != null) { 74 table = tag.getTable(); 75 } 76 } 77 78 if (table != null) { 79 ListSelectionListener l = 80 new ScriptListSelectionListener( 81 table, 82 script == null ? getBody() : script, 83 context, 84 eventVar); 85 86 table.getSelectionModel().addListSelectionListener(l); 87 } 88 } 89 90 public void setEventVar(String var) { 91 this.eventVar = var; 92 } 93 94 public void setScript(Script script) { 95 this.script = script; 96 } 97 98 public void setTable(JTable table) { 99 this.table = table; 100 } 101 } 102 103 class ScriptListSelectionListener implements ListSelectionListener { 104 private JellyContext context; 105 private String eventVar; 106 private Script script; 107 private JTable table; 108 109 public ScriptListSelectionListener( 110 JTable table, 111 Script script, 112 JellyContext context, 113 String eventVar) { 114 115 this.table = table; 116 this.script = script; 117 this.context = context; 118 this.eventVar = eventVar; 119 } 120 121 public void valueChanged(ListSelectionEvent e) { 122 if (eventVar != null) { 123 context.setVariable(eventVar, e); 124 } 125 126 try { 127 script.run(context, XMLOutput.createDummyXMLOutput()); 128 } catch (Exception exc) { 129 LogFactory.getLog(getClass()).error("Error in valueChanged", exc); 130 } 131 if (eventVar != null) { 132 context.removeVariable(eventVar); 133 } 134 } 135 }

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