Coverage report

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org.apache.commons.jelly.tags.swing.WindowListenerTag$1
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 1  
 /*
 2  
  * Copyright 2002,2004 The Apache Software Foundation.
 3  
  *
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  *
 8  
  *      http://www.apache.org/licenses/LICENSE-2.0
 9  
  *
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  */
 16  
 package org.apache.commons.jelly.tags.swing;
 17  
 
 18  
 import java.awt.event.WindowEvent;
 19  
 import java.awt.event.WindowListener;
 20  
 
 21  
 import org.apache.commons.jelly.JellyTagException;
 22  
 import org.apache.commons.jelly.Script;
 23  
 import org.apache.commons.jelly.TagSupport;
 24  
 import org.apache.commons.jelly.XMLOutput;
 25  
 import org.apache.commons.logging.Log;
 26  
 import org.apache.commons.logging.LogFactory;
 27  
 
 28  
 /**
 29  
  * Creates a WindowListener which is attached to its parent window control which will invoke
 30  
  * named Jelly scripts as window events are fired, or will invoke its body if there is no script
 31  
  * specified for the named event type.
 32  
  *
 33  
  * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
 34  
  * @version $Revision: 1.7 $
 35  
  */
 36  
 public class WindowListenerTag extends TagSupport {
 37  
 
 38  
     /** The Log to which logging calls will be made. */
 39  
     private static final Log log = LogFactory.getLog(WindowListenerTag.class);
 40  
 
 41  
     private String var;
 42  
     private Script activated;
 43  
     private Script closed;
 44  
     private Script closing;
 45  
     private Script deactivated;
 46  
     private Script deiconified;
 47  
     private Script iconified;
 48  
     private Script opened;
 49  
 
 50  
     public WindowListenerTag() {
 51  
     }
 52  
 
 53  
     // Tag interface
 54  
     //-------------------------------------------------------------------------
 55  
     public void doTag(final XMLOutput output) throws JellyTagException {
 56  
 
 57  
         // now lets add this action to its parent if we have one
 58  
         ComponentTag tag = (ComponentTag) findAncestorWithClass( ComponentTag.class );
 59  
         if ( tag != null ) {
 60  
             WindowListener listener = new WindowListener() {
 61  
                 public void windowActivated(WindowEvent e) {
 62  0
                     invokeScript( output, e, activated );
 63  0
                 }
 64  
 
 65  
                 public void windowClosed(WindowEvent e) {
 66  0
                     invokeScript( output, e, closed );
 67  0
                 }
 68  
 
 69  
                 public void windowClosing(WindowEvent e) {
 70  0
                     invokeScript( output, e, closing );
 71  0
                 }
 72  
 
 73  
                 public void windowDeactivated(WindowEvent e) {
 74  0
                     invokeScript( output, e, deactivated );
 75  0
                 }
 76  
 
 77  
                 public void windowDeiconified(WindowEvent e) {
 78  0
                     invokeScript( output, e, deiconified );
 79  0
                 }
 80  
 
 81  
                 public void windowIconified(WindowEvent e) {
 82  0
                     invokeScript( output, e, iconified );
 83  0
                 }
 84  
 
 85  0
                 public void windowOpened(WindowEvent e) {
 86  0
                     invokeScript( output, e, opened );
 87  0
                 }
 88  
             };
 89  
             tag.addWindowListener(listener);
 90  
         }
 91  
     }
 92  
 
 93  
     // Properties
 94  
     //-------------------------------------------------------------------------
 95  
 
 96  
 
 97  
     /**
 98  
      * Sets the name of the variable to use to expose the Event object
 99  
      */
 100  
     public void setVar(String var) {
 101  
         this.var = class="keyword">var;
 102  
     }
 103  
 
 104  
     /**
 105  
      * Sets the Script to be executed when the window is activated.
 106  
      */
 107  
     public void setActivated(Script activated) {
 108  
         this.activated = activated;
 109  
     }
 110  
 
 111  
     /**
 112  
      * Sets the Script to be executed when the window is closed.
 113  
      */
 114  
     public void setClosed(Script closed) {
 115  
         this.closed = closed;
 116  
     }
 117  
 
 118  
     /**
 119  
      * Sets the Script to be executed when the window is closing.
 120  
      */
 121  
     public void setClosing(Script closing) {
 122  
         this.closing = closing;
 123  
     }
 124  
 
 125  
     /**
 126  
      * Sets the Script to be executed when the window is deactivated.
 127  
      */
 128  
     public void setDeactivated(Script deactivated) {
 129  
         this.deactivated = deactivated;
 130  
     }
 131  
 
 132  
     /**
 133  
      * Sets the Script to be executed when the window is deiconified.
 134  
      */
 135  
     public void setDeiconified(Script deiconified) {
 136  
         this.deiconified = deiconified;
 137  
     }
 138  
 
 139  
     /**
 140  
      * Sets the Script to be executed when the window is iconified.
 141  
      */
 142  
     public void setIconified(Script iconified) {
 143  
         this.iconified = iconified;
 144  
     }
 145  
 
 146  
     /**
 147  
      * Sets the Script to be executed when the window is opened.
 148  
      */
 149  
     public void setOpened(Script opened) {
 150  
         this.opened = opened;
 151  
     }
 152  
 
 153  
 
 154  
 
 155  
     // Implementation methods
 156  
     //-------------------------------------------------------------------------
 157  
     protected void invokeScript(XMLOutput output, WindowEvent event, Script script) {
 158  
         if ( var != null ) {
 159  
             // define a variable of the event
 160  
             context.setVariable(var, event);
 161  
         }
 162  
 
 163  
         try {
 164  
             if ( script != null ) {
 165  
                 script.run(context, output );
 166  
             }
 167  
             else {
 168  
                 // invoke the body
 169  
                 invokeBody(output);
 170  
             }
 171  
         }
 172  
         catch (Exception e) {
 173  
             log.error( "Caught exception processing window event: " + event, e );
 174  
         }
 175  
     }
 176  
 
 177  
 }

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