Merge branch 'feature/JAL-3169cancelOverwrite' into develop
[jalview.git] / src / jalview / io / JalviewFileChooser.java
index 7e6bd1b..7fbe801 100755 (executable)
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
+//////////////////////////////////////////////////////////////////
 package jalview.io;
 
-import java.awt.*;
-import java.awt.event.*;
-import java.io.*;
-import java.util.*;
-
-import javax.swing.*;
-import javax.swing.plaf.*;
-import javax.swing.plaf.basic.*;
-import javax.swing.plaf.metal.*;
-import javax.swing.table.*;
-
+import jalview.bin.Cache;
+import jalview.gui.JvOptionPane;
+import jalview.util.MessageManager;
+import jalview.util.Platform;
+
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.HeadlessException;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.StringTokenizer;
+import java.util.Vector;
+
+import javax.swing.BoxLayout;
+import javax.swing.DefaultListCellRenderer;
+import javax.swing.JCheckBox;
+import javax.swing.JFileChooser;
+import javax.swing.JList;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.SpringLayout;
+import javax.swing.SwingUtilities;
+import javax.swing.border.TitledBorder;
+import javax.swing.filechooser.FileFilter;
+import javax.swing.plaf.basic.BasicFileChooserUI;
+
+/**
+ * Enhanced file chooser dialog box.
+ *
+ * NOTE: bug on Windows systems when filechooser opened on directory to view
+ * files with colons in title.
+ *
+ * @author AMW
+ *
+ */
 public class JalviewFileChooser extends JFileChooser
 {
+  /**
+   * backupfilesCheckBox = "Include backup files" checkbox includeBackupfiles =
+   * flag set by checkbox
+   */
+  private JCheckBox backupfilesCheckBox = null;
+
+  protected boolean includeBackupFiles = false;
+
+  /**
+   * Factory method to return a file chooser that offers readable alignment file
+   * formats
+   * 
+   * @param directory
+   * @param selected
+   * @return
+   */
+  public static JalviewFileChooser forRead(String directory,
+          String selected)
+  {
+    return JalviewFileChooser.forRead(directory, selected, false);
+  }
 
-  private static final int COLUMN_FILENAME = 0;
-  private static final int COLUMN_FILESIZE = 1;
-  private static final int COLUMN_FILETYPE = 2;
-  private static final int COLUMN_FILEDATE = 3;
-  private static final int COLUMN_FILEATTR = 4;
-  private static final int COLUMN_COLCOUNT = 5;
-  private static String[] COLUMNS = null;
+  public static JalviewFileChooser forRead(String directory,
+          String selected, boolean allowBackupFiles)
+  {
+    List<String> extensions = new ArrayList<>();
+    List<String> descs = new ArrayList<>();
+    for (FileFormatI format : FileFormats.getInstance().getFormats())
+    {
+      if (format.isReadable())
+      {
+        extensions.add(format.getExtensions());
+        descs.add(format.getName());
+      }
+    }
+
+    return new JalviewFileChooser(directory,
+            extensions.toArray(new String[extensions.size()]),
+            descs.toArray(new String[descs.size()]), selected, true,
+            allowBackupFiles);
+  }
+
+  /**
+   * Factory method to return a file chooser that offers writable alignment file
+   * formats
+   * 
+   * @param directory
+   * @param selected
+   * @return
+   */
+  public static JalviewFileChooser forWrite(String directory,
+          String selected)
+  {
+    // TODO in Java 8, forRead and forWrite can be a single method
+    // with a lambda expression parameter for isReadable/isWritable
+    List<String> extensions = new ArrayList<>();
+    List<String> descs = new ArrayList<>();
+    for (FileFormatI format : FileFormats.getInstance().getFormats())
+    {
+      if (format.isWritable())
+      {
+        extensions.add(format.getExtensions());
+        descs.add(format.getName());
+      }
+    }
+    return new JalviewFileChooser(directory,
+            extensions.toArray(new String[extensions.size()]),
+            descs.toArray(new String[descs.size()]), selected, false);
+  }
 
   public JalviewFileChooser(String dir)
   {
-    super(dir);
-    if (COLUMNS == null)
+    super(safePath(dir));
+    setAccessory(new RecentlyOpened());
+  }
+
+  public JalviewFileChooser(String dir, String[] suffix, String[] desc,
+          String selected)
+  {
+    this(dir, suffix, desc, selected, true);
+  }
+
+  /**
+   * Constructor for a single choice of file extension and description
+   * 
+   * @param extension
+   * @param desc
+   */
+  public JalviewFileChooser(String extension, String desc)
+  {
+    this(Cache.getProperty("LAST_DIRECTORY"), new String[] { extension },
+            new String[]
+            { desc }, desc, true);
+  }
+
+  JalviewFileChooser(String dir, String[] extensions, String[] descs,
+          String selected, boolean allFiles)
+  {
+    this(dir, extensions, descs, selected, allFiles, false);
+  }
+
+  public JalviewFileChooser(String dir, String[] extensions, String[] descs,
+          String selected, boolean allFiles, boolean allowBackupFiles)
+  {
+    super(safePath(dir));
+    if (extensions.length == descs.length)
+    {
+      List<String[]> formats = new ArrayList<>();
+      for (int i = 0; i < extensions.length; i++)
+      {
+        formats.add(new String[] { extensions[i], descs[i] });
+      }
+      init(formats, selected, allFiles, allowBackupFiles);
+    }
+    else
+    {
+      System.err.println("JalviewFileChooser arguments mismatch: "
+              + extensions + ", " + descs);
+    }
+  }
+
+  private static File safePath(String dir)
+  {
+    if (dir == null)
+    {
+      return null;
+    }
+
+    File f = new File(dir);
+    if (f.getName().indexOf(':') > -1)
+    {
+      return null;
+    }
+    return f;
+  }
+
+  /**
+   * 
+   * @param formats
+   *          a list of {extensions, description} for each file format
+   * @param selected
+   * @param allFiles
+   *          if true, 'any format' option is included
+   */
+  void init(List<String[]> formats, String selected, boolean allFiles)
+  {
+    init(formats, selected, allFiles, false);
+  }
+
+  void init(List<String[]> formats, String selected, boolean allFiles,
+          boolean allowBackupFiles)
+  {
+
+    JalviewFileFilter chosen = null;
+
+    // SelectAllFilter needs to be set first before adding further
+    // file filters to fix bug on Mac OSX
+    setAcceptAllFileFilterUsed(allFiles);
+
+    for (String[] format : formats)
+    {
+      JalviewFileFilter jvf = new JalviewFileFilter(format[0], format[1]);
+      if (allowBackupFiles)
+      {
+        jvf.setParentJFC(this);
+      }
+      addChoosableFileFilter(jvf);
+      if ((selected != null) && selected.equalsIgnoreCase(format[1]))
+      {
+        chosen = jvf;
+      }
+    }
+
+    if (chosen != null)
+    {
+      setFileFilter(chosen);
+    }
+
+    if (allowBackupFiles)
+    {
+      JPanel multi = new JPanel();
+      multi.setLayout(new BoxLayout(multi, BoxLayout.PAGE_AXIS));
+      if (backupfilesCheckBox == null)
+      {
+        try {
+          includeBackupFiles = Boolean.parseBoolean(
+                  Cache.getProperty(BackupFiles.NS + "_FC_INCLUDE"));
+        } catch (Exception e)
+        {
+          includeBackupFiles = false;
+        }
+        backupfilesCheckBox = new JCheckBox(
+                MessageManager.getString("label.include_backup_files"),
+                includeBackupFiles);
+        backupfilesCheckBox.setAlignmentX(Component.CENTER_ALIGNMENT);
+        JalviewFileChooser jfc = this;
+        backupfilesCheckBox.addActionListener(new ActionListener()
+        {
+          @Override
+          public void actionPerformed(ActionEvent e)
+          {
+            includeBackupFiles = backupfilesCheckBox.isSelected();
+            Cache.setProperty(BackupFiles.NS + "_FC_INCLUDE",
+                    String.valueOf(includeBackupFiles));
+
+            FileFilter f = jfc.getFileFilter();
+            // deselect the selected file if it's no longer choosable
+            File selectedFile = jfc.getSelectedFile();
+            if (selectedFile != null && !f.accept(selectedFile))
+            {
+              jfc.setSelectedFile(null);
+            }
+            // fake the OK button changing (to force it to upate)
+            String s = jfc.getApproveButtonText();
+            jfc.firePropertyChange(
+                    APPROVE_BUTTON_TEXT_CHANGED_PROPERTY, null, s);
+            // fake the file filter changing (its behaviour actually has)
+            jfc.firePropertyChange(FILE_FILTER_CHANGED_PROPERTY, null, f);
+
+            jfc.rescanCurrentDirectory();
+            jfc.revalidate();
+            jfc.repaint();
+          }
+        });
+      }
+      multi.add(new RecentlyOpened());
+      multi.add(backupfilesCheckBox);
+      setAccessory(multi);
+    }
+    else
+    {
+      // set includeBackupFiles=false to avoid other file choosers from picking
+      // up backup files (Just In Case)
+      includeBackupFiles = false;
+      setAccessory(new RecentlyOpened());
+    }
+  }
+
+  @Override
+  public void setFileFilter(javax.swing.filechooser.FileFilter filter)
+  {
+    super.setFileFilter(filter);
+
+    try
+    {
+      if (getUI() instanceof BasicFileChooserUI)
+      {
+        final BasicFileChooserUI fcui = (BasicFileChooserUI) getUI();
+        final String name = fcui.getFileName().trim();
+
+        if ((name == null) || (name.length() == 0))
+        {
+          return;
+        }
+
+        EventQueue.invokeLater(new Thread()
+        {
+          @Override
+          public void run()
+          {
+            String currentName = fcui.getFileName();
+            if ((currentName == null) || (currentName.length() == 0))
+            {
+              fcui.setFileName(name);
+            }
+          }
+        });
+      }
+    } catch (Exception ex)
     {
-      Locale l = getLocale();
-      COLUMNS = new String[]{
-        UIManager.getString("FileChooser.fileNameHeaderText",l),
-        UIManager.getString("FileChooser.fileSizeHeaderText",l),
-        UIManager.getString("FileChooser.fileTypeHeaderText",l),
-        UIManager.getString("FileChooser.fileDateHeaderText",l),
-        UIManager.getString("FileChooser.fileAttrHeaderText",l)
-      };
+      ex.printStackTrace();
+      // Some platforms do not have BasicFileChooserUI
+    }
+  }
+
+  /**
+   * Returns the selected file format, or null if none selected
+   * 
+   * @return
+   */
+  public FileFormatI getSelectedFormat()
+  {
+    if (getFileFilter() == null)
+    {
+      return null;
     }
 
+    /*
+     * logic here depends on option description being formatted as 
+     * formatName (extension, extension...)
+     * or the 'no option selected' value
+     * All Files
+     * @see JalviewFileFilter.getDescription
+     */
+    String format = getFileFilter().getDescription();
+    int parenPos = format.indexOf("(");
+    if (parenPos > 0)
+    {
+      format = format.substring(0, parenPos).trim();
+      try
+      {
+        return FileFormats.getInstance().forName(format);
+      } catch (IllegalArgumentException e)
+      {
+        System.err.println("Unexpected format: " + format);
+      }
+    }
+    return null;
   }
 
-  public JalviewFileChooser()
+  File ourselectedFile = null;
+
+  @Override
+  public File getSelectedFile()
   {
-    if (COLUMNS == null)
+    File selfile = super.getSelectedFile();
+    if (selfile == null && ourselectedFile != null)
     {
-      Locale l = getLocale();
-      COLUMNS = new String[]{
-        UIManager.getString("FileChooser.fileNameHeaderText",l),
-        UIManager.getString("FileChooser.fileSizeHeaderText",l),
-        UIManager.getString("FileChooser.fileTypeHeaderText",l),
-        UIManager.getString("FileChooser.fileDateHeaderText",l),
-        UIManager.getString("FileChooser.fileAttrHeaderText",l)
-      };
+      return ourselectedFile;
     }
+    return selfile;
   }
 
+  @Override
+  public int showSaveDialog(Component parent) throws HeadlessException
+  {
+    this.setAccessory(null);
+    this.setSelectedFile(null);
+    return super.showSaveDialog(parent);
+  }
 
-  /**************************************************************************
-   * Always create the local UI
-   * @param comp
-   *************************************************************************/
-  public final void setUI(ComponentUI comp)
+  /**
+   * If doing a Save, and an existing file is chosen or entered, prompt for
+   * confirmation of overwrite. Proceed if Yes, else leave the file chooser
+   * open.
+   * 
+   * @see https://stackoverflow.com/questions/8581215/jfilechooser-and-checking-for-overwrite
+   */
+  @Override
+  public void approveSelection()
   {
-    super.setUI(new UI(this));
+    if (getDialogType() != SAVE_DIALOG)
+    {
+      super.approveSelection();
+      return;
+    }
+
+    ourselectedFile = getSelectedFile();
+
+    if (ourselectedFile == null)
+    {
+      // Workaround for Java 9,10 on OSX - no selected file, but there is a
+      // filename typed in
+      try
+      {
+        String filename = ((BasicFileChooserUI) getUI()).getFileName();
+        if (filename != null && filename.length() > 0)
+        {
+          ourselectedFile = new File(getCurrentDirectory(), filename);
+        }
+      } catch (Throwable x)
+      {
+        System.err.println(
+                "Unexpected exception when trying to get filename.");
+        x.printStackTrace();
+      }
+      // TODO: ENSURE THAT FILES SAVED WITH A ':' IN THE NAME ARE REFUSED AND
+      // THE
+      // USER PROMPTED FOR A NEW FILENAME
+    }
+    if (ourselectedFile == null)
+    {
+      return;
+    }
+
+    if (getFileFilter() instanceof JalviewFileFilter)
+    {
+      JalviewFileFilter jvf = (JalviewFileFilter) getFileFilter();
+
+      if (!jvf.accept(ourselectedFile))
+      {
+        String withExtension = getSelectedFile().getName() + "."
+                + jvf.getAcceptableExtension();
+        ourselectedFile = (new File(getCurrentDirectory(), withExtension));
+        setSelectedFile(ourselectedFile);
+      }
+    }
+
+    if (ourselectedFile.exists())
+    {
+      int confirm = JvOptionPane.showConfirmDialog(this,
+              MessageManager.getString("label.overwrite_existing_file"),
+              MessageManager.getString("label.file_already_exists"),
+              JvOptionPane.YES_NO_OPTION);
+
+      if (confirm != JvOptionPane.YES_OPTION)
+      {
+        return;
+      }
+    }
+
+    super.approveSelection();
   }
 
-   /**************************************************************************
-    * Internal implementation of Metal LookAndFeel to create the table sorting
-    * ability.
-    *************************************************************************/
-   private final static class UI extends MetalFileChooserUI
-   {
-     private DirectoryModel model;
-
-     /**************************************************************************
-      * Must be overridden to extend
-      * @param e
-      *************************************************************************/
-     public UI(JFileChooser e)
-     {
-       super(e);
-     }
-
-     /**************************************************************************
-      * Overridden to create our own model
-      *************************************************************************/
-     protected final void createModel()
-     {
-       model = new DirectoryModel(getFileChooser());
-     }
-
-     /**************************************************************************
-      * Overridden to get our own model
-      * @return
-      *************************************************************************/
-     public final BasicDirectoryModel getModel() {       return model;     }
-
-     /**************************************************************************
-      * Calls the default method then adds a MouseListener to the JTable
-      * @param chooser
-      * @return
-      *************************************************************************/
-     protected final JPanel createDetailsView(JFileChooser chooser)
-     {
-       final JPanel panel = super.createDetailsView(chooser);
-
-       //Since we can't access MetalFileChooserUI's private member detailsTable
-       //directly, we have to find it in the JPanel
-       final JTable tbl = findJTable(panel.getComponents());
-       if (tbl != null)
-       {
-         //Fix the columns so they can't be rearranged, if we don't do this
-         //we would need to keep track when each column is moved
-         tbl.getTableHeader().setReorderingAllowed(false);
-
-         //Add a mouselistener to listen for clicks on column headers
-         tbl.getTableHeader().addMouseListener(new MouseAdapter(){
-           public void mouseClicked(MouseEvent e)
-           {
-             //Only process single clicks
-             if (e.getClickCount() > 1) return;
-             e.consume();
-             final int col = tbl.getTableHeader().columnAtPoint(e.getPoint());
-             if (col == COLUMN_FILENAME || col == COLUMN_FILESIZE ||
-                 col == COLUMN_FILEDATE)
-               model.sort(col,tbl);
-           }
-         });
-       }
-       return panel;
-     }
-
-     /**************************************************************************
-      * Finds the JTable in the panel so we can add MouseListener
-      * @param comp
-      * @return
-      *************************************************************************/
-     private final static JTable findJTable(Component[] comp)
-     {
-       for (int i=0;i<comp.length;i++)
-       {
-         if (comp[i] instanceof JTable)
-         {
-           return (JTable)comp[i];
-         }
-         if (comp[i] instanceof Container)
-         {
-           JTable tbl = findJTable(((Container)comp[i]).getComponents());
-           if (tbl != null) return tbl;
-         }
-       }
-       return null;
-     }
-   }
-
-  /***************************************************************************
-   * Implementation of BasicDirectoryModel that sorts the Files by column
-   **************************************************************************/
-  private final static class DirectoryModel extends BasicDirectoryModel
-   {
-     int col = 0;
-     boolean ascending;
-
-     /**************************************************************************
-      * Must be overridden to extend BasicDirectoryModel
-      * @param chooser
-      *************************************************************************/
-     DirectoryModel(JFileChooser chooser)
-     {
-       super(chooser);
-     }
-
-
-     /**************************************************************************
-      * Supposedly this is not used anymore, hopefully not.  We implemented
-      * some basic attempt at sorting just in case
-      * @param a
-      * @param b
-      * @return
-      *************************************************************************/
-     protected final boolean lt(File a, File b)
-     {
-       System.out.println("LT called?");
-       boolean less = false;
-       switch (col)
-       {
-         case COLUMN_FILEDATE:
-           less = a.lastModified() > b.lastModified();
-           break;
-         case COLUMN_FILESIZE:
-           less = a.length() > b.length();
-           break;
-         default:
-           less = a.getName().compareToIgnoreCase(b.getName()) > 0;
-         break;
-       }
-       if (ascending) return less = !less;
-       return less;
-     }
-
-     /**************************************************************************
-      * Resorts the JFileChooser table based on new column
-      * @param c
-      *************************************************************************/
-     protected final void sort(int c, JTable tbl)
-     {
-       //Set column and order
-       col = c;
-       ascending = !ascending;
-       String indicator = " (^)";
-       if (ascending)
-         indicator = " (v)";
-
-       final JTableHeader th = tbl.getTableHeader();
-       final TableColumnModel tcm = th.getColumnModel();
-
-       for (int i=0;i<JalviewFileChooser.COLUMN_COLCOUNT;i++)
-       {
-         final TableColumn tc = tcm.getColumn( i ); // the column to change
-         tc.setHeaderValue( COLUMNS[i] );
-       }
-
-       final TableColumn tc = tcm.getColumn( col ); // the column to change
-       tc.setHeaderValue( COLUMNS[col] + indicator );
-
-       th.repaint();
-
-       //Requery the file listing
-       validateFileCache();
-     }
-
-     /**************************************************************************
-      * Sorts the data based on current column setting
-      * @param data
-      *************************************************************************/
-     protected final void sort(Vector data)
-     {
-       switch (col)
-       {
-         case COLUMN_FILEDATE:
-           Collections.sort(data,new Comparator(){
-             public int compare(Object o1,Object o2)
-             {
-               int ret = 1;
-               final File a = (File)o1;
-               final File b = (File)o2;
-               if (a.lastModified() > b.lastModified())
-                 ret = -1;
-               else if (a.lastModified() == b.lastModified())
-                 ret = 0;
-
-               if (ascending)
-                 ret *= -1;
-               return ret;
-             }
-
-           });
-           break;
-         case COLUMN_FILESIZE:
-           Collections.sort(data,new Comparator(){
-             public int compare(Object o1,Object o2)
-             {
-               int ret = 1;
-               final File a = (File)o1;
-               final File b = (File)o2;
-               if (a.length() > b.length())
-                 ret = -1;
-               else if (a.length() == b.length())
-                 ret = 0;
-
-               if (ascending)
-                 ret *= -1;
-               return ret;
-             }
-
-           });
-           break;
-         case COLUMN_FILENAME:
-           Collections.sort(data,new Comparator(){
-             public int compare(Object o1,Object o2)
-             {
-               final File a = (File)o1;
-               final File b = (File)o2;
-               if (ascending)
-                 return a.getName().compareToIgnoreCase(b.getName());
-               else
-                 return -1 * a.getName().compareToIgnoreCase(b.getName());
-             }
-
-           });
-           break;
-       }
-     }
+  void recentListSelectionChanged(Object selection)
+  {
+    setSelectedFile(null);
+    if (selection != null)
+    {
+      File file = new File((String) selection);
+      if (getFileFilter() instanceof JalviewFileFilter)
+      {
+        JalviewFileFilter jvf = (JalviewFileFilter) this.getFileFilter();
+
+        if (!jvf.accept(file))
+        {
+          setFileFilter(getChoosableFileFilters()[0]);
+        }
+      }
+
+      setSelectedFile(file);
+    }
   }
-}
 
+  /**
+   * A panel to set as the 'accessory' component to the file chooser dialog,
+   * holding a list of recently opened files (if any). These are held as a
+   * tab-separated list of file paths under key <code>RECENT_FILE</code> in
+   * <code>.jalview_properties</code>. A click in the list calls a method in
+   * JalviewFileChooser to set the chosen file as the selection.
+   */
+  class RecentlyOpened extends JPanel
+  {
+    private static final long serialVersionUID = 1L;
+
+    private JList<String> list;
+
+    RecentlyOpened()
+    {
+      String historyItems = Cache.getProperty("RECENT_FILE");
+      StringTokenizer st;
+      Vector<String> recent = new Vector<>();
+
+      if (historyItems != null)
+      {
+        st = new StringTokenizer(historyItems, "\t");
+        while (st.hasMoreTokens())
+        {
+          recent.addElement(st.nextToken());
+        }
+      }
+
+      list = new JList<>(recent);
+
+      DefaultListCellRenderer dlcr = new DefaultListCellRenderer();
+      dlcr.setHorizontalAlignment(DefaultListCellRenderer.RIGHT);
+      list.setCellRenderer(dlcr);
+
+      list.addMouseListener(new MouseAdapter()
+      {
+        @Override
+        public void mousePressed(MouseEvent evt)
+        {
+          recentListSelectionChanged(list.getSelectedValue());
+        }
+      });
+
+      this.setBorder(new TitledBorder(
+              MessageManager.getString("label.recently_opened")));
+
+      final JScrollPane scroller = new JScrollPane(list);
+
+      SpringLayout layout = new SpringLayout();
+      layout.putConstraint(SpringLayout.WEST, scroller, 5,
+              SpringLayout.WEST, this);
+      layout.putConstraint(SpringLayout.NORTH, scroller, 5,
+              SpringLayout.NORTH, this);
+
+      if (Platform.isAMac())
+      {
+        scroller.setPreferredSize(new Dimension(500, 100));
+      }
+      else
+      {
+        scroller.setPreferredSize(new Dimension(130, 200));
+      }
+
+      this.add(scroller);
+
+      SwingUtilities.invokeLater(new Runnable()
+      {
+        @Override
+        public void run()
+        {
+          scroller.getHorizontalScrollBar()
+                  .setValue(scroller.getHorizontalScrollBar().getMaximum());
+        }
+      });
+    }
+  }
+}