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1   /***
2    * Redistribution  and use  in source  and binary  forms, with  or without
3    * modification, are permitted provided  that the following conditions are
4    * met :
5    *
6    * . Redistributions  of  source  code  must  retain  the  above copyright
7    *   notice, this list of conditions and the following disclaimer.
8    *
9    * . Redistributions in  binary form  must reproduce  the above  copyright
10   *   notice, this list of conditions  and the following disclaimer in  the
11   *   documentation and/or other materials provided with the distribution.
12   *
13   * . The name of the author may not be used to endorse or promote products
14   *   derived from this software without specific prior written permission.
15   *
16   * THIS SOFTWARE IS  PROVIDED BY THE  AUTHOR ``AS IS''  AND ANY EXPRESS  OR
17   * IMPLIED  WARRANTIES,  INCLUDING,  BUT   NOT  LIMITED  TO,  THE   IMPLIED
18   * WARRANTIES OF MERCHANTABILITY AND  FITNESS FOR A PARTICULAR  PURPOSE ARE
19   * DISCLAIMED.  IN NO  EVENT SHALL  THE AUTHOR  BE LIABLE  FOR ANY  DIRECT,
20   * INDIRECT,  INCIDENTAL,  SPECIAL,  EXEMPLARY,  OR  CONSEQUENTIAL  DAMAGES
21   * (INCLUDING,  BUT  NOT LIMITED  TO,  PROCUREMENT OF  SUBSTITUTE  GOODS OR
22   * SERVICES;  LOSS  OF USE,  DATA,  OR PROFITS;  OR  BUSINESS INTERRUPTION)
23   * HOWEVER CAUSED  AND ON  ANY THEORY  OF LIABILITY,  WHETHER IN  CONTRACT,
24   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25   * ANY  WAY  OUT OF  THE  USE OF  THIS  SOFTWARE, EVEN  IF  ADVISED OF  THE
26   * POSSIBILITY OF SUCH DAMAGE.
27   *
28   * $Id$
29   */
30  
31  package palmed.command;
32  
33  import javax.microedition.lcdui.Display;
34  import palmed.file.FileBrowser;
35  import palmed.file.IFileBrowserListener;
36  import palmed.ui.ICommand;
37  
38  /***
39   * This class implements the 'open' command.
40   *
41   * @author Mathieu Champlon
42   * @version $Revision$ $Date$
43   */
44  public final class OpenCommand implements ICommand
45  {
46      /***
47       * The display.
48       */
49      private final Display display_;
50      /***
51       * The file browser.
52       */
53      private final FileBrowser fileBrowser_;
54      /***
55       * The file browser listener.
56       */
57      private final IFileBrowserListener listener_;
58  
59      /***
60       * Create an 'open' command.
61       *
62       * @param display the display
63       * @param fileBrowser the file browser
64       * @param listener the file browser listener
65       */
66      public OpenCommand( final Display display, final FileBrowser fileBrowser, final IFileBrowserListener listener )
67      {
68          if( display == null )
69              throw new IllegalArgumentException( "parameter 'display' is null" );
70          if( fileBrowser == null )
71              throw new IllegalArgumentException( "parameter 'fileBroswer' is null" );
72          if( listener == null )
73              throw new IllegalArgumentException( "parameter 'listener' is null" );
74          display_ = display;
75          fileBrowser_ = fileBrowser;
76          listener_ = listener;
77      }
78  
79      /***
80       * {@inheritDoc}
81       */
82      public void execute()
83      {
84          fileBrowser_.allowCreation( false );
85          fileBrowser_.setListener( listener_ );
86          display_.setCurrent( fileBrowser_ );
87      }
88  }