JAL-1645 Version-Rel Version 2.9 Year-Rel 2015 Licensing glob
[jalview.git] / src / jalview / bin / JalviewLite.java
old mode 100755 (executable)
new mode 100644 (file)
index c61c516..59424df
 /*
- * Jalview - A Sequence Alignment Editor and Viewer
- * Copyright (C) 2007 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
- *
- * This program 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 2
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.9)
+ * Copyright (C) 2015 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.
- *
- * This program 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.
- *
+ *  
+ * 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
  */
 package jalview.bin;
 
-import java.applet.*;
-
-import java.awt.*;
-import java.awt.event.*;
-import java.util.*;
-
-import jalview.appletgui.*;
-import jalview.datamodel.*;
-import jalview.io.*;
+import jalview.analysis.AlignmentUtils;
+import jalview.api.StructureSelectionManagerProvider;
+import jalview.appletgui.AlignFrame;
+import jalview.appletgui.AlignViewport;
+import jalview.appletgui.EmbmenuFrame;
+import jalview.appletgui.FeatureSettings;
+import jalview.appletgui.SplitFrame;
+import jalview.datamodel.Alignment;
+import jalview.datamodel.AlignmentI;
+import jalview.datamodel.AlignmentOrder;
+import jalview.datamodel.ColumnSelection;
+import jalview.datamodel.PDBEntry;
+import jalview.datamodel.Sequence;
+import jalview.datamodel.SequenceGroup;
+import jalview.datamodel.SequenceI;
+import jalview.io.AnnotationFile;
+import jalview.io.AppletFormatAdapter;
+import jalview.io.FileParse;
+import jalview.io.IdentifyFile;
+import jalview.io.JPredFile;
+import jalview.io.JnetAnnotationMaker;
+import jalview.io.NewickFile;
+import jalview.javascript.JSFunctionExec;
+import jalview.javascript.JalviewLiteJsApi;
+import jalview.javascript.JsCallBack;
+import jalview.structure.SelectionListener;
+import jalview.structure.StructureSelectionManager;
+import jalview.util.MessageManager;
+
+import java.applet.Applet;
+import java.awt.Button;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.EventQueue;
+import java.awt.Font;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.event.ActionEvent;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.util.Hashtable;
+import java.util.List;
+import java.util.StringTokenizer;
+import java.util.Vector;
+
+import netscape.javascript.JSObject;
 
 /**
  * Jalview Applet. Runs in Java 1.18 runtime
- *
+ * 
  * @author $author$
- * @version $Revision$
+ * @version $Revision: 1.92 $
  */
-public class JalviewLite
-    extends Applet
+public class JalviewLite extends Applet implements
+        StructureSelectionManagerProvider, JalviewLiteJsApi
 {
 
+  private static final String TRUE = "true";
 
+  private static final String FALSE = "false";
 
-  ///////////////////////////////////////////
-  //The following public methods maybe called
-  //externally, eg via javascript in HTML page
-  /**
-   * @return list of selected sequences separated by "¬"
+  public StructureSelectionManager getStructureSelectionManager()
+  {
+    return StructureSelectionManager.getStructureSelectionManager(this);
+  }
+
+  // /////////////////////////////////////////
+  // The following public methods maybe called
+  // externally, eg via javascript in HTML page
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getSelectedSequences()
    */
   public String getSelectedSequences()
   {
-    return getSelectedSequencesFrom(currentAlignFrame);
+    return getSelectedSequencesFrom(getDefaultTargetFrame());
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getSelectedSequences(java.lang.String)
+   */
+  public String getSelectedSequences(String sep)
+  {
+    return getSelectedSequencesFrom(getDefaultTargetFrame(), sep);
   }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getSelectedSequencesFrom(jalview.appletgui
+   * .AlignFrame)
+   */
   public String getSelectedSequencesFrom(AlignFrame alf)
   {
-    StringBuffer result = new StringBuffer("");
+    return getSelectedSequencesFrom(alf, separator); // ""+0x00AC);
+  }
 
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getSelectedSequencesFrom(jalview.appletgui
+   * .AlignFrame, java.lang.String)
+   */
+  public String getSelectedSequencesFrom(AlignFrame alf, String sep)
+  {
+    StringBuffer result = new StringBuffer("");
+    if (sep == null || sep.length() == 0)
+    {
+      sep = separator; // "+0x00AC;
+    }
     if (alf.viewport.getSelectionGroup() != null)
     {
-      SequenceI[] seqs = alf.viewport.getSelectionGroup().
-          getSequencesInOrder(
-                  alf.viewport.getAlignment());
+      SequenceI[] seqs = alf.viewport.getSelectionGroup()
+              .getSequencesInOrder(alf.viewport.getAlignment());
 
       for (int i = 0; i < seqs.length; i++)
       {
-        result.append(seqs[i].getName() + "¬");
+        result.append(seqs[i].getName());
+        result.append(sep);
       }
     }
 
     return result.toString();
   }
-  
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#highlight(java.lang.String,
+   * java.lang.String, java.lang.String)
+   */
+  public void highlight(String sequenceId, String position,
+          String alignedPosition)
+  {
+    highlightIn(getDefaultTargetFrame(), sequenceId, position,
+            alignedPosition);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#highlightIn(jalview.appletgui.AlignFrame,
+   * java.lang.String, java.lang.String, java.lang.String)
+   */
+  public void highlightIn(final AlignFrame alf, final String sequenceId,
+          final String position, final String alignedPosition)
+  {
+    // TODO: could try to highlight in all alignments if alf==null
+    jalview.analysis.SequenceIdMatcher matcher = new jalview.analysis.SequenceIdMatcher(
+            alf.viewport.getAlignment().getSequencesArray());
+    final SequenceI sq = matcher.findIdMatch(sequenceId);
+    if (sq != null)
+    {
+      int apos = -1;
+      try
+      {
+        apos = new Integer(position).intValue();
+        apos--;
+      } catch (NumberFormatException ex)
+      {
+        return;
+      }
+      final StructureSelectionManagerProvider me = this;
+      final int pos = apos;
+      // use vamsas listener to broadcast to all listeners in scope
+      if (alignedPosition != null
+              && (alignedPosition.trim().length() == 0 || alignedPosition
+                      .toLowerCase().indexOf("false") > -1))
+      {
+        java.awt.EventQueue.invokeLater(new Runnable()
+        {
+          @Override
+          public void run()
+          {
+            StructureSelectionManager.getStructureSelectionManager(me)
+                    .mouseOverVamsasSequence(sq, sq.findIndex(pos), null);
+          }
+        });
+      }
+      else
+      {
+        java.awt.EventQueue.invokeLater(new Runnable()
+        {
+          @Override
+          public void run()
+          {
+            StructureSelectionManager.getStructureSelectionManager(me)
+                    .mouseOverVamsasSequence(sq, pos, null);
+          }
+        });
+      }
+    }
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#select(java.lang.String,
+   * java.lang.String)
+   */
+  public void select(String sequenceIds, String columns)
+  {
+    selectIn(getDefaultTargetFrame(), sequenceIds, columns, separator);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#select(java.lang.String,
+   * java.lang.String, java.lang.String)
+   */
+  public void select(String sequenceIds, String columns, String sep)
+  {
+    selectIn(getDefaultTargetFrame(), sequenceIds, columns, sep);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#selectIn(jalview.appletgui.AlignFrame,
+   * java.lang.String, java.lang.String)
+   */
+  public void selectIn(AlignFrame alf, String sequenceIds, String columns)
+  {
+    selectIn(alf, sequenceIds, columns, separator);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#selectIn(jalview.appletgui.AlignFrame,
+   * java.lang.String, java.lang.String, java.lang.String)
+   */
+  public void selectIn(final AlignFrame alf, String sequenceIds,
+          String columns, String sep)
+  {
+    if (sep == null || sep.length() == 0)
+    {
+      sep = separator;
+    }
+    else
+    {
+      if (debug)
+      {
+        System.err.println("Selecting region using separator string '"
+                + separator + "'");
+      }
+    }
+    // deparse fields
+    String[] ids = separatorListToArray(sequenceIds, sep);
+    String[] cols = separatorListToArray(columns, sep);
+    final SequenceGroup sel = new SequenceGroup();
+    final ColumnSelection csel = new ColumnSelection();
+    AlignmentI al = alf.viewport.getAlignment();
+    jalview.analysis.SequenceIdMatcher matcher = new jalview.analysis.SequenceIdMatcher(
+            alf.viewport.getAlignment().getSequencesArray());
+    int start = 0, end = al.getWidth(), alw = al.getWidth();
+    boolean seqsfound = true;
+    if (ids != null && ids.length > 0)
+    {
+      seqsfound = false;
+      for (int i = 0; i < ids.length; i++)
+      {
+        if (ids[i].trim().length() == 0)
+        {
+          continue;
+        }
+        SequenceI sq = matcher.findIdMatch(ids[i]);
+        if (sq != null)
+        {
+          seqsfound = true;
+          sel.addSequence(sq, false);
+        }
+      }
+    }
+    boolean inseqpos = false;
+    if (cols != null && cols.length > 0)
+    {
+      boolean seset = false;
+      for (int i = 0; i < cols.length; i++)
+      {
+        String cl = cols[i].trim();
+        if (cl.length() == 0)
+        {
+          continue;
+        }
+        int p;
+        if ((p = cl.indexOf("-")) > -1)
+        {
+          int from = -1, to = -1;
+          try
+          {
+            from = new Integer(cl.substring(0, p)).intValue();
+            from--;
+          } catch (NumberFormatException ex)
+          {
+            System.err
+                    .println("ERROR: Couldn't parse first integer in range element column selection string '"
+                            + cl + "' - format is 'from-to'");
+            return;
+          }
+          try
+          {
+            to = new Integer(cl.substring(p + 1)).intValue();
+            to--;
+          } catch (NumberFormatException ex)
+          {
+            System.err
+                    .println("ERROR: Couldn't parse second integer in range element column selection string '"
+                            + cl + "' - format is 'from-to'");
+            return;
+          }
+          if (from >= 0 && to >= 0)
+          {
+            // valid range
+            if (from < to)
+            {
+              int t = to;
+              to = from;
+              to = t;
+            }
+            if (!seset)
+            {
+              start = from;
+              end = to;
+              seset = true;
+            }
+            else
+            {
+              // comment to prevent range extension
+              if (start > from)
+              {
+                start = from;
+              }
+              if (end < to)
+              {
+                end = to;
+              }
+            }
+            for (int r = from; r <= to; r++)
+            {
+              if (r >= 0 && r < alw)
+              {
+                csel.addElement(r);
+              }
+            }
+            if (debug)
+            {
+              System.err.println("Range '" + cl + "' deparsed as [" + from
+                      + "," + to + "]");
+            }
+          }
+          else
+          {
+            System.err.println("ERROR: Invalid Range '" + cl
+                    + "' deparsed as [" + from + "," + to + "]");
+          }
+        }
+        else
+        {
+          int r = -1;
+          try
+          {
+            r = new Integer(cl).intValue();
+            r--;
+          } catch (NumberFormatException ex)
+          {
+            if (cl.toLowerCase().equals("sequence"))
+            {
+              // we are in the dataset sequence's coordinate frame.
+              inseqpos = true;
+            }
+            else
+            {
+              System.err
+                      .println("ERROR: Couldn't parse integer from point selection element of column selection string '"
+                              + cl + "'");
+              return;
+            }
+          }
+          if (r >= 0 && r <= alw)
+          {
+            if (!seset)
+            {
+              start = r;
+              end = r;
+              seset = true;
+            }
+            else
+            {
+              // comment to prevent range extension
+              if (start > r)
+              {
+                start = r;
+              }
+              if (end < r)
+              {
+                end = r;
+              }
+            }
+            csel.addElement(r);
+            if (debug)
+            {
+              System.err.println("Point selection '" + cl
+                      + "' deparsed as [" + r + "]");
+            }
+          }
+          else
+          {
+            System.err.println("ERROR: Invalid Point selection '" + cl
+                    + "' deparsed as [" + r + "]");
+          }
+        }
+      }
+    }
+    if (seqsfound)
+    {
+      // we only propagate the selection when it was the null selection, or the
+      // given sequences were found in the alignment.
+      if (inseqpos && sel.getSize() > 0)
+      {
+        // assume first sequence provides reference frame ?
+        SequenceI rs = sel.getSequenceAt(0);
+        start = rs.findIndex(start);
+        end = rs.findIndex(end);
+        if (csel != null)
+        {
+          List<Integer> cs = csel.getSelected();
+          csel.clear();
+          for (Integer selectedCol : cs)
+          {
+            csel.addElement(rs.findIndex(selectedCol));
+          }
+        }
+      }
+      sel.setStartRes(start);
+      sel.setEndRes(end);
+      EventQueue.invokeLater(new Runnable()
+      {
+        @Override
+        public void run()
+        {
+          alf.select(sel, csel);
+        }
+      });
+    }
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getSelectedSequencesAsAlignment(java.lang.
+   * String, java.lang.String)
+   */
+  public String getSelectedSequencesAsAlignment(String format, String suffix)
+  {
+    return getSelectedSequencesAsAlignmentFrom(getDefaultTargetFrame(),
+            format, suffix);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getSelectedSequencesAsAlignmentFrom(jalview
+   * .appletgui.AlignFrame, java.lang.String, java.lang.String)
+   */
+  public String getSelectedSequencesAsAlignmentFrom(AlignFrame alf,
+          String format, String suffix)
+  {
+    try
+    {
+      boolean seqlimits = suffix.equalsIgnoreCase(TRUE);
+      if (alf.viewport.getSelectionGroup() != null)
+      {
+        // JBPNote: getSelectionAsNewSequence behaviour has changed - this
+        // method now returns a full copy of sequence data
+        // TODO consider using getSequenceSelection instead here
+        String reply = new AppletFormatAdapter().formatSequences(format,
+                new Alignment(alf.viewport.getSelectionAsNewSequence()),
+                seqlimits);
+        return reply;
+      }
+    } catch (Exception ex)
+    {
+      ex.printStackTrace();
+      return "Error retrieving alignment in " + format + " format. ";
+    }
+    return "";
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getAlignmentOrder()
+   */
+  public String getAlignmentOrder()
+  {
+    return getAlignmentOrderFrom(getDefaultTargetFrame());
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getAlignmentOrderFrom(jalview.appletgui.AlignFrame
+   * )
+   */
+  public String getAlignmentOrderFrom(AlignFrame alf)
+  {
+    return getAlignmentOrderFrom(alf, separator);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getAlignmentOrderFrom(jalview.appletgui.AlignFrame
+   * , java.lang.String)
+   */
+  public String getAlignmentOrderFrom(AlignFrame alf, String sep)
+  {
+    AlignmentI alorder = alf.getAlignViewport().getAlignment();
+    String[] order = new String[alorder.getHeight()];
+    for (int i = 0; i < order.length; i++)
+    {
+      order[i] = alorder.getSequenceAt(i).getName();
+    }
+    return arrayToSeparatorList(order);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#orderBy(java.lang.String,
+   * java.lang.String)
+   */
+  public String orderBy(String order, String undoName)
+  {
+    return orderBy(order, undoName, separator);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#orderBy(java.lang.String,
+   * java.lang.String, java.lang.String)
+   */
+  public String orderBy(String order, String undoName, String sep)
+  {
+    return orderAlignmentBy(getDefaultTargetFrame(), order, undoName, sep);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#orderAlignmentBy(jalview.appletgui.AlignFrame,
+   * java.lang.String, java.lang.String, java.lang.String)
+   */
+  public String orderAlignmentBy(AlignFrame alf, String order,
+          String undoName, String sep)
+  {
+    String[] ids = separatorListToArray(order, sep);
+    SequenceI[] sqs = null;
+    if (ids != null && ids.length > 0)
+    {
+      jalview.analysis.SequenceIdMatcher matcher = new jalview.analysis.SequenceIdMatcher(
+              alf.viewport.getAlignment().getSequencesArray());
+      int s = 0;
+      sqs = new SequenceI[ids.length];
+      for (int i = 0; i < ids.length; i++)
+      {
+        if (ids[i].trim().length() == 0)
+        {
+          continue;
+        }
+        SequenceI sq = matcher.findIdMatch(ids[i]);
+        if (sq != null)
+        {
+          sqs[s++] = sq;
+        }
+      }
+      if (s > 0)
+      {
+        SequenceI[] sqq = new SequenceI[s];
+        System.arraycopy(sqs, 0, sqq, 0, s);
+        sqs = sqq;
+      }
+      else
+      {
+        sqs = null;
+      }
+    }
+    if (sqs == null)
+    {
+      return "";
+    }
+    ;
+    final AlignmentOrder aorder = new AlignmentOrder(sqs);
+
+    if (undoName != null && undoName.trim().length() == 0)
+    {
+      undoName = null;
+    }
+    final String _undoName = undoName;
+    // TODO: deal with synchronization here: cannot raise any events until after
+    // this has returned.
+    return alf.sortBy(aorder, _undoName) ? TRUE : "";
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getAlignment(java.lang.String)
+   */
   public String getAlignment(String format)
   {
-    return getAlignmentFrom(currentAlignFrame, format, "true");
+    return getAlignmentFrom(getDefaultTargetFrame(), format, TRUE);
   }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getAlignmentFrom(jalview.appletgui.AlignFrame,
+   * java.lang.String)
+   */
   public String getAlignmentFrom(AlignFrame alf, String format)
   {
-    return getAlignmentFrom(alf, format, "true");
+    return getAlignmentFrom(alf, format, TRUE);
   }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getAlignment(java.lang.String,
+   * java.lang.String)
+   */
   public String getAlignment(String format, String suffix)
   {
-    return getAlignmentFrom(currentAlignFrame, format, suffix);
+    return getAlignmentFrom(getDefaultTargetFrame(), format, suffix);
   }
-  public String getAlignmentFrom(AlignFrame alf, String format, String suffix)
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getAlignmentFrom(jalview.appletgui.AlignFrame,
+   * java.lang.String, java.lang.String)
+   */
+  public String getAlignmentFrom(AlignFrame alf, String format,
+          String suffix)
   {
     try
     {
-      boolean seqlimits = suffix.equalsIgnoreCase("true");
+      boolean seqlimits = suffix.equalsIgnoreCase(TRUE);
 
       String reply = new AppletFormatAdapter().formatSequences(format,
-          alf.viewport.getAlignment(), seqlimits);
+              alf.viewport.getAlignment(), seqlimits);
       return reply;
+    } catch (Exception ex)
+    {
+      ex.printStackTrace();
+      return "Error retrieving alignment in " + format + " format. ";
+    }
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#loadAnnotation(java.lang.String)
+   */
+  public void loadAnnotation(String annotation)
+  {
+    loadAnnotationFrom(getDefaultTargetFrame(), annotation);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#loadAnnotationFrom(jalview.appletgui.AlignFrame
+   * , java.lang.String)
+   */
+  public void loadAnnotationFrom(AlignFrame alf, String annotation)
+  {
+    if (new AnnotationFile().annotateAlignmentView(alf.getAlignViewport(),
+            annotation, AppletFormatAdapter.PASTE))
+    {
+      alf.alignPanel.fontChanged();
+      alf.alignPanel.setScrollValues(0, 0);
+    }
+    else
+    {
+      alf.parseFeaturesFile(annotation, AppletFormatAdapter.PASTE);
+    }
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#loadAnnotation(java.lang.String)
+   */
+  public void loadFeatures(String features, boolean autoenabledisplay)
+  {
+    loadFeaturesFrom(getDefaultTargetFrame(), features, autoenabledisplay);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#loadAnnotationFrom(jalview.appletgui.AlignFrame
+   * , java.lang.String)
+   */
+  public boolean loadFeaturesFrom(AlignFrame alf, String features,
+          boolean autoenabledisplay)
+  {
+    return alf.parseFeaturesFile(features, AppletFormatAdapter.PASTE,
+            autoenabledisplay);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getFeatures(java.lang.String)
+   */
+  public String getFeatures(String format)
+  {
+    return getFeaturesFrom(getDefaultTargetFrame(), format);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getFeaturesFrom(jalview.appletgui.AlignFrame,
+   * java.lang.String)
+   */
+  public String getFeaturesFrom(AlignFrame alf, String format)
+  {
+    return alf.outputFeatures(false, format);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getAnnotation()
+   */
+  public String getAnnotation()
+  {
+    return getAnnotationFrom(getDefaultTargetFrame());
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getAnnotationFrom(jalview.appletgui.AlignFrame
+   * )
+   */
+  public String getAnnotationFrom(AlignFrame alf)
+  {
+    return alf.outputAnnotations(false);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#newView()
+   */
+  public AlignFrame newView()
+  {
+    return newViewFrom(getDefaultTargetFrame());
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#newView(java.lang.String)
+   */
+  public AlignFrame newView(String name)
+  {
+    return newViewFrom(getDefaultTargetFrame(), name);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#newViewFrom(jalview.appletgui.AlignFrame)
+   */
+  public AlignFrame newViewFrom(AlignFrame alf)
+  {
+    return alf.newView(null);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#newViewFrom(jalview.appletgui.AlignFrame,
+   * java.lang.String)
+   */
+  public AlignFrame newViewFrom(AlignFrame alf, String name)
+  {
+    return alf.newView(name);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#loadAlignment(java.lang.String,
+   * java.lang.String)
+   */
+  public AlignFrame loadAlignment(String text, String title)
+  {
+    AlignmentI al = null;
+
+    String format = new IdentifyFile().Identify(text,
+            AppletFormatAdapter.PASTE);
+    try
+    {
+      al = new AppletFormatAdapter().readFile(text,
+              AppletFormatAdapter.PASTE, format);
+      if (al.getHeight() > 0)
+      {
+        return new AlignFrame(al, this, title, false);
+      }
+    } catch (java.io.IOException ex)
+    {
+      ex.printStackTrace();
+    }
+    return null;
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#setMouseoverListener(java.lang.String)
+   */
+  public void setMouseoverListener(String listener)
+  {
+    setMouseoverListener(currentAlignFrame, listener);
+  }
+
+  private Vector<jalview.javascript.JSFunctionExec> javascriptListeners = new Vector<jalview.javascript.JSFunctionExec>();
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#setMouseoverListener(jalview.appletgui.AlignFrame
+   * , java.lang.String)
+   */
+  public void setMouseoverListener(AlignFrame af, String listener)
+  {
+    if (listener != null)
+    {
+      listener = listener.trim();
+      if (listener.length() == 0)
+      {
+        System.err
+                .println("jalview Javascript error: Ignoring empty function for mouseover listener.");
+        return;
+      }
     }
-    catch (Exception ex)
+    jalview.javascript.MouseOverListener mol = new jalview.javascript.MouseOverListener(
+            this, af, listener);
+    javascriptListeners.addElement(mol);
+    StructureSelectionManager.getStructureSelectionManager(this)
+            .addStructureViewerListener(mol);
+    if (debug)
     {
-      ex.printStackTrace();
-      return "Error retrieving alignment in " + format + " format. ";
+      System.err.println("Added a mouseover listener for "
+              + ((af == null) ? "All frames" : "Just views for "
+                      + af.getAlignViewport().getSequenceSetId()));
+      System.err.println("There are now " + javascriptListeners.size()
+              + " listeners in total.");
     }
   }
 
-  public void loadAnnotation(String annotation)
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#setSelectionListener(java.lang.String)
+   */
+  public void setSelectionListener(String listener)
   {
-    loadAnnotationFrom(currentAlignFrame, annotation);
+    setSelectionListener(null, listener);
   }
-  public void loadAnnotationFrom(AlignFrame alf, String annotation)
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#setSelectionListener(jalview.appletgui.AlignFrame
+   * , java.lang.String)
+   */
+  public void setSelectionListener(AlignFrame af, String listener)
   {
-    if (new AnnotationFile().readAnnotationFile(
-        alf.getAlignViewport().getAlignment(), annotation,
-        AppletFormatAdapter.PASTE))
+    if (listener != null)
     {
-      alf.alignPanel.fontChanged();
-      alf.alignPanel.setScrollValues(0, 0);
+      listener = listener.trim();
+      if (listener.length() == 0)
+      {
+        System.err
+                .println("jalview Javascript error: Ignoring empty function for selection listener.");
+        return;
+      }
     }
-    else
+    jalview.javascript.JsSelectionSender mol = new jalview.javascript.JsSelectionSender(
+            this, af, listener);
+    javascriptListeners.addElement(mol);
+    StructureSelectionManager.getStructureSelectionManager(this)
+            .addSelectionListener(mol);
+    if (debug)
     {
-      alf.parseFeaturesFile(annotation, AppletFormatAdapter.PASTE);
+      System.err.println("Added a selection listener for "
+              + ((af == null) ? "All frames" : "Just views for "
+                      + af.getAlignViewport().getSequenceSetId()));
+      System.err.println("There are now " + javascriptListeners.size()
+              + " listeners in total.");
     }
   }
 
-  public String getFeatures(String format)
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#setStructureListener(java.lang.String,
+   * java.lang.String)
+   */
+  public void setStructureListener(String listener, String modelSet)
   {
-    return getFeaturesFrom(currentAlignFrame, format);
+    if (listener != null)
+    {
+      listener = listener.trim();
+      if (listener.length() == 0)
+      {
+        System.err
+                .println("jalview Javascript error: Ignoring empty function for selection listener.");
+        return;
+      }
+    }
+    jalview.javascript.MouseOverStructureListener mol = new jalview.javascript.MouseOverStructureListener(
+            this, listener, separatorListToArray(modelSet));
+    javascriptListeners.addElement(mol);
+    StructureSelectionManager.getStructureSelectionManager(this)
+            .addStructureViewerListener(mol);
+    if (debug)
+    {
+      System.err.println("Added a javascript structure viewer listener '"
+              + listener + "'");
+      System.err.println("There are now " + javascriptListeners.size()
+              + " listeners in total.");
+    }
   }
-  public String getFeaturesFrom(AlignFrame alf, String format)
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#removeJavascriptListener(jalview.appletgui
+   * .AlignFrame, java.lang.String)
+   */
+  public void removeJavascriptListener(AlignFrame af, String listener)
   {
-    return alf.outputFeatures(false, format);
+    if (listener != null)
+    {
+      listener = listener.trim();
+      if (listener.length() == 0)
+      {
+        listener = null;
+      }
+    }
+    boolean rprt = false;
+    for (int ms = 0, msSize = javascriptListeners.size(); ms < msSize;)
+    {
+      Object lstn = javascriptListeners.elementAt(ms);
+      JsCallBack lstner = (JsCallBack) lstn;
+      if ((af == null || lstner.getAlignFrame() == af)
+              && (listener == null || lstner.getListenerFunction().equals(
+                      listener)))
+      {
+        javascriptListeners.removeElement(lstner);
+        msSize--;
+        if (lstner instanceof SelectionListener)
+        {
+          StructureSelectionManager.getStructureSelectionManager(this)
+                  .removeSelectionListener((SelectionListener) lstner);
+        }
+        else
+        {
+          StructureSelectionManager.getStructureSelectionManager(this)
+                  .removeStructureViewerListener(lstner, null);
+        }
+        rprt = debug;
+        if (debug)
+        {
+          System.err.println("Removed listener '" + listener + "'");
+        }
+      }
+      else
+      {
+        ms++;
+      }
+    }
+    if (rprt)
+    {
+      System.err.println("There are now " + javascriptListeners.size()
+              + " listeners in total.");
+    }
   }
-  public String getAnnotation()
+
+  public void stop()
   {
-    return getAnnotationFrom(currentAlignFrame);
+    System.err.println("Applet " + getName() + " stop().");
+    tidyUp();
   }
-  public String getAnnotationFrom(AlignFrame alf)
+
+  public void destroy()
   {
-    return alf.outputAnnotations(false);
+    System.err.println("Applet " + getName() + " destroy().");
+    tidyUp();
   }
-  public AlignFrame newView()
+
+  private void tidyUp()
   {
-    return newViewFrom(currentAlignFrame);
+    removeAll();
+    if (currentAlignFrame != null && currentAlignFrame.viewport != null
+            && currentAlignFrame.viewport.applet != null)
+    {
+      AlignViewport av = currentAlignFrame.viewport;
+      currentAlignFrame.closeMenuItem_actionPerformed();
+      av.applet = null;
+      currentAlignFrame = null;
+    }
+    if (javascriptListeners != null)
+    {
+      while (javascriptListeners.size() > 0)
+      {
+        jalview.javascript.JSFunctionExec mol = javascriptListeners
+                .elementAt(0);
+        javascriptListeners.removeElement(mol);
+        if (mol instanceof SelectionListener)
+        {
+          StructureSelectionManager.getStructureSelectionManager(this)
+                  .removeSelectionListener((SelectionListener) mol);
+        }
+        else
+        {
+          StructureSelectionManager.getStructureSelectionManager(this)
+                  .removeStructureViewerListener(mol, null);
+        }
+        mol.jvlite = null;
+      }
+    }
+    if (jsFunctionExec != null)
+    {
+      jsFunctionExec.stopQueue();
+      jsFunctionExec.jvlite = null;
+    }
+    initialAlignFrame = null;
+    jsFunctionExec = null;
+    javascriptListeners = null;
+    StructureSelectionManager.release(this);
   }
-  public AlignFrame newView(String name)
+
+  private jalview.javascript.JSFunctionExec jsFunctionExec;
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#mouseOverStructure(java.lang.String,
+   * java.lang.String, java.lang.String)
+   */
+  public void mouseOverStructure(final String pdbResNum,
+          final String chain, final String pdbfile)
   {
-    return newViewFrom(currentAlignFrame, name);
+    final StructureSelectionManagerProvider me = this;
+    java.awt.EventQueue.invokeLater(new Runnable()
+    {
+      @Override
+      public void run()
+      {
+        try
+        {
+          StructureSelectionManager.getStructureSelectionManager(me)
+                  .mouseOverStructure(new Integer(pdbResNum).intValue(),
+                          chain, pdbfile);
+          if (debug)
+          {
+            System.err.println("mouseOver for '" + pdbResNum
+                    + "' in chain '" + chain + "' in structure '" + pdbfile
+                    + "'");
+          }
+        } catch (NumberFormatException e)
+        {
+          System.err.println("Ignoring invalid residue number string '"
+                  + pdbResNum + "'");
+        }
+
+      }
+    });
   }
 
-  public AlignFrame newViewFrom(AlignFrame alf)
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#scrollViewToIn(jalview.appletgui.AlignFrame,
+   * java.lang.String, java.lang.String)
+   */
+  public void scrollViewToIn(final AlignFrame alf, final String topRow,
+          final String leftHandColumn)
   {
-    return alf.newView(null);
+    java.awt.EventQueue.invokeLater(new Runnable()
+    {
+      @Override
+      public void run()
+      {
+        try
+        {
+          alf.scrollTo(new Integer(topRow).intValue(), new Integer(
+                  leftHandColumn).intValue());
+
+        } catch (Exception ex)
+        {
+          System.err.println("Couldn't parse integer arguments (topRow='"
+                  + topRow + "' and leftHandColumn='" + leftHandColumn
+                  + "')");
+          ex.printStackTrace();
+        }
+      }
+    });
   }
-  public AlignFrame newViewFrom(AlignFrame alf, String name)
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.javascript.JalviewLiteJsApi#scrollViewToRowIn(jalview.appletgui
+   * .AlignFrame, java.lang.String)
+   */
+  @Override
+  public void scrollViewToRowIn(final AlignFrame alf, final String topRow)
   {
-    return alf.newView(name);
+
+    java.awt.EventQueue.invokeLater(new Runnable()
+    {
+      @Override
+      public void run()
+      {
+        try
+        {
+          alf.scrollToRow(new Integer(topRow).intValue());
+
+        } catch (Exception ex)
+        {
+          System.err.println("Couldn't parse integer arguments (topRow='"
+                  + topRow + "')");
+          ex.printStackTrace();
+        }
+
+      }
+    });
   }
-  /**
+
+  /*
+   * (non-Javadoc)
    * 
-   * @param text alignment file as a string
-   * @param title window title 
-   * @return null or new alignment frame
+   * @see
+   * jalview.javascript.JalviewLiteJsApi#scrollViewToColumnIn(jalview.appletgui
+   * .AlignFrame, java.lang.String)
    */
-  public AlignFrame loadAlignment(String text, String title)
+  @Override
+  public void scrollViewToColumnIn(final AlignFrame alf,
+          final String leftHandColumn)
   {
-    Alignment al = null;
-    String format = new IdentifyFile().Identify(text, AppletFormatAdapter.PASTE);
-    try
+    java.awt.EventQueue.invokeLater(new Runnable()
     {
-      al = new AppletFormatAdapter().readFile(text,
-                                              AppletFormatAdapter.PASTE,
-                                              format);
-      if (al.getHeight() > 0)
+
+      @Override
+      public void run()
       {
-        return new AlignFrame(al, this, title, false);
+        try
+        {
+          alf.scrollToColumn(new Integer(leftHandColumn).intValue());
+
+        } catch (Exception ex)
+        {
+          System.err
+                  .println("Couldn't parse integer arguments (leftHandColumn='"
+                          + leftHandColumn + "')");
+          ex.printStackTrace();
+        }
       }
-    }
-    catch (java.io.IOException ex)
-    {
-      ex.printStackTrace();
-    }
-    return null;
+    });
+
   }
 
-  ////////////////////////////////////////////////
-  ////////////////////////////////////////////////
+  // //////////////////////////////////////////////
+  // //////////////////////////////////////////////
 
+  public static int lastFrameX = 200;
 
+  public static int lastFrameY = 200;
 
-  static int lastFrameX = 200;
-  static int lastFrameY = 200;
   boolean fileFound = true;
+
   String file = "No file";
-  Button launcher = new Button("Start Jalview");
 
-  //The currentAlignFrame is static, it will change
-  //if and when the user selects a new window
-  public static AlignFrame currentAlignFrame;
+  String file2 = null;
+
+  Button launcher = new Button(
+          MessageManager.getString("label.start_jalview"));
+
+  /**
+   * The currentAlignFrame is static, it will change if and when the user
+   * selects a new window. Note that it will *never* point back to the embedded
+   * AlignFrame if the applet is started as embedded on the page and then
+   * afterwards a new view is created.
+   */
+  public AlignFrame currentAlignFrame = null;
 
-  //This is the first frame to be displayed, and does not change
-  AlignFrame initialAlignFrame;
+  /**
+   * This is the first frame to be displayed, and does not change. API calls
+   * will default to this instance if currentAlignFrame is null.
+   */
+  AlignFrame initialAlignFrame = null;
 
   boolean embedded = false;
 
+  private boolean checkForJmol = true;
+
+  private boolean checkedForJmol = false; // ensure we don't check for jmol
+
+  // every time the app is re-inited
+
   public boolean jmolAvailable = false;
-  public static boolean debug;
+
+  private boolean alignPdbStructures = false;
+
+  /**
+   * use an external structure viewer exclusively (no jmols or MCViews will be
+   * opened by JalviewLite itself)
+   */
+  public boolean useXtrnalSviewer = false;
+
+  public static boolean debug = false;
+
+  static String builddate = null, version = null, installation = null;
+
+  private static void initBuildDetails()
+  {
+    if (builddate == null)
+    {
+      builddate = "unknown";
+      version = "test";
+      installation = "applet";
+      java.net.URL url = JalviewLite.class
+              .getResource("/.build_properties");
+      if (url != null)
+      {
+        try
+        {
+          BufferedReader reader = new BufferedReader(new InputStreamReader(
+                  url.openStream()));
+          String line;
+          while ((line = reader.readLine()) != null)
+          {
+            if (line.indexOf("VERSION") > -1)
+            {
+              version = line.substring(line.indexOf("=") + 1);
+            }
+            if (line.indexOf("BUILD_DATE") > -1)
+            {
+              builddate = line.substring(line.indexOf("=") + 1);
+            }
+            if (line.indexOf("INSTALLATION") > -1)
+            {
+              installation = line.substring(line.indexOf("=") + 1);
+            }
+          }
+        } catch (Exception ex)
+        {
+          ex.printStackTrace();
+        }
+      }
+    }
+  }
+
+  public static String getBuildDate()
+  {
+    initBuildDetails();
+    return builddate;
+  }
+
+  public static String getInstallation()
+  {
+    initBuildDetails();
+    return installation;
+  }
+
+  public static String getVersion()
+  {
+    initBuildDetails();
+    return version;
+  }
+
+  // public JSObject scriptObject = null;
 
   /**
    * init method for Jalview Applet
    */
   public void init()
   {
-    String dbg = getParameter("debug");
-    if (dbg!=null)
+    // remove any handlers that might be hanging around from an earlier instance
+    try
+    {
+      if (debug)
+      {
+        System.err.println("Applet context is '"
+                + getAppletContext().getClass().toString() + "'");
+      }
+      JSObject scriptObject = JSObject.getWindow(this);
+      if (debug && scriptObject != null)
+      {
+        System.err.println("Applet has Javascript callback support.");
+      }
+
+    } catch (Exception ex)
+    {
+      System.err
+              .println("Warning: No JalviewLite javascript callbacks available.");
+      if (debug)
+      {
+        ex.printStackTrace();
+      }
+    }
+    /**
+     * turn on extra applet debugging
+     */
+    debug = TRUE.equalsIgnoreCase(getParameter("debug"));
+    if (debug)
+    {
+
+      System.err.println("JalviewLite Version " + getVersion());
+      System.err.println("Build Date : " + getBuildDate());
+      System.err.println("Installation : " + getInstallation());
+
+    }
+    String externalsviewer = getParameter("externalstructureviewer");
+    if (externalsviewer != null)
+    {
+      useXtrnalSviewer = externalsviewer.trim().toLowerCase().equals(TRUE);
+    }
+    /**
+     * if true disable the check for jmol
+     */
+    String chkforJmol = getParameter("nojmol");
+    if (chkforJmol != null)
+    {
+      checkForJmol = !chkforJmol.equals(TRUE);
+    }
+    /**
+     * get the separator parameter if present
+     */
+    String sep = getParameter("separator");
+    if (sep != null)
     {
-      debug = dbg.toLowerCase().equals("true");
+      if (sep.length() > 0)
+      {
+        separator = sep;
+        if (debug)
+        {
+          System.err.println("Separator set to '" + separator + "'");
+        }
+      }
+      else
+      {
+        throw new Error(
+                MessageManager
+                        .getString("error.invalid_separator_parameter"));
+      }
     }
     int r = 255;
     int g = 255;
@@ -222,31 +1428,29 @@ public class JalviewLite
         r = Integer.parseInt(param.substring(0, 2), 16);
         g = Integer.parseInt(param.substring(2, 4), 16);
         b = Integer.parseInt(param.substring(4, 6), 16);
-      }
-      catch (Exception ex)
+      } catch (Exception ex)
       {
         r = 255;
         g = 255;
         b = 255;
       }
     }
-
     param = getParameter("label");
     if (param != null)
     {
       launcher.setLabel(param);
     }
 
-    this.setBackground(new Color(r, g, b));
+    setBackground(new Color(r, g, b));
 
     file = getParameter("file");
 
     if (file == null)
     {
-      //Maybe the sequences are added as parameters
+      // Maybe the sequences are added as parameters
       StringBuffer data = new StringBuffer("PASTE");
       int i = 1;
-      while ( (file = getParameter("sequence" + i)) != null)
+      while ((file = getParameter("sequence" + i)) != null)
       {
         data.append(file.toString() + "\n");
         i++;
@@ -256,50 +1460,146 @@ public class JalviewLite
         file = data.toString();
       }
     }
+    if (getDefaultParameter("enableSplitFrame", true))
+    {
+      file2 = getParameter("file2");
+    }
+
+    embedded = TRUE.equalsIgnoreCase(getParameter("embedded"));
+    if (embedded)
+    {
+      LoadingThread loader = new LoadingThread(file, file2, this);
+      loader.start();
+    }
+    else if (file != null)
+    {
+      /*
+       * Start the applet immediately or show a button to start it
+       */
+      if (FALSE.equalsIgnoreCase(getParameter("showbutton")))
+      {
+        LoadingThread loader = new LoadingThread(file, file2, this);
+        loader.start();
+      }
+      else
+      {
+        add(launcher);
+        launcher.addActionListener(new java.awt.event.ActionListener()
+        {
+          public void actionPerformed(ActionEvent e)
+          {
+            LoadingThread loader = new LoadingThread(file, file2,
+                    JalviewLite.this);
+            loader.start();
+          }
+        });
+      }
+    }
+    else
+    {
+      // jalview initialisation with no alignment. loadAlignment() method can
+      // still be called to open new alignments.
+      file = "NO FILE";
+      fileFound = false;
+      callInitCallback();
+    }
+  }
 
-    LoadJmolThread jmolAvailable = new LoadJmolThread();
-    jmolAvailable.start();
+  private void initLiveConnect()
+  {
+    // try really hard to get the liveConnect thing working
+    boolean notFailed = false;
+    int tries = 0;
+    while (!notFailed && tries < 10)
+    {
+      if (tries > 0)
+      {
+        System.err.println("LiveConnect request thread going to sleep.");
+      }
+      try
+      {
+        Thread.sleep(700 * (1 + tries));
+      } catch (InterruptedException q)
+      {
+      }
+      ;
+      if (tries++ > 0)
+      {
+        System.err.println("LiveConnect request thread woken up.");
+      }
+      try
+      {
+        JSObject scriptObject = JSObject.getWindow(this);
+        if (scriptObject.eval("navigator") != null)
+        {
+          notFailed = true;
+        }
+      } catch (Exception jsex)
+      {
+        System.err.println("Attempt " + tries
+                + " to access LiveConnect javascript failed.");
+      }
+    }
+  }
 
-    final JalviewLite applet = this;
-    if (getParameter("embedded") != null
-        && getParameter("embedded").equalsIgnoreCase("true"))
+  private void callInitCallback()
+  {
+    String initjscallback = getParameter("oninit");
+    if (initjscallback == null)
     {
-      embedded = true;
-      LoadingThread loader = new LoadingThread(file, applet);
-      loader.start();
+      return;
     }
-    else if (file != null)
+    initjscallback = initjscallback.trim();
+    if (initjscallback.length() > 0)
     {
-      add(launcher);
+      JSObject scriptObject = null;
+      try
+      {
+        scriptObject = JSObject.getWindow(this);
+      } catch (Exception ex)
+      {
+      }
+      ;
+      // try really hard to let the browser plugin know we want liveconnect
+      initLiveConnect();
 
-      launcher.addActionListener(new java.awt.event.ActionListener()
+      if (scriptObject != null)
       {
-        public void actionPerformed(ActionEvent e)
+        try
+        {
+          // do onInit with the JS executor thread
+          new JSFunctionExec(this).executeJavascriptFunction(true,
+                  initjscallback, null, "Calling oninit callback '"
+                          + initjscallback + "'.");
+        } catch (Exception e)
         {
-          LoadingThread loader = new LoadingThread(file,
-              applet);
-          loader.start();
+          System.err.println("Exception when executing _oninit callback '"
+                  + initjscallback + "'.");
+          e.printStackTrace();
         }
-      });
-    }
-    else
-    {
-      file = "NO FILE";
-      fileFound = false;
+      }
+      else
+      {
+        System.err.println("Not executing _oninit callback '"
+                + initjscallback + "' - no scripting allowed.");
+      }
     }
   }
 
-
   /**
    * Initialises and displays a new java.awt.Frame
-   *
-   * @param frame java.awt.Frame to be displayed
-   * @param title title of new frame
-   * @param width width if new frame
-   * @param height height of new frame
+   * 
+   * @param frame
+   *          java.awt.Frame to be displayed
+   * @param title
+   *          title of new frame
+   * @param width
+   *          width if new frame
+   * @param height
+   *          height of new frame
    */
   public static void addFrame(final Frame frame, String title, int width,
-                              int height)
+          int height)
   {
     frame.setLocation(lastFrameX, lastFrameY);
     lastFrameX += 40;
@@ -312,14 +1612,22 @@ public class JalviewLite
       {
         if (frame instanceof AlignFrame)
         {
-          ( (AlignFrame) frame).closeMenuItem_actionPerformed();
-        }
-        if (currentAlignFrame == frame)
-        {
-          currentAlignFrame = null;
+          AlignViewport vp = ((AlignFrame) frame).viewport;
+          ((AlignFrame) frame).closeMenuItem_actionPerformed();
+          if (vp.applet.currentAlignFrame == frame)
+          {
+            vp.applet.currentAlignFrame = null;
+          }
+          vp.applet = null;
+          vp = null;
+
         }
         lastFrameX -= 40;
         lastFrameY -= 40;
+        if (frame instanceof EmbmenuFrame)
+        {
+          ((EmbmenuFrame) frame).destroyMenus();
+        }
         frame.setMenuBar(null);
         frame.dispose();
       }
@@ -328,24 +1636,38 @@ public class JalviewLite
       {
         if (frame instanceof AlignFrame)
         {
-          currentAlignFrame = (AlignFrame) frame;
+          ((AlignFrame) frame).viewport.applet.currentAlignFrame = (AlignFrame) frame;
           if (debug)
           {
-            System.err.println("Activated window "+frame);
+            System.err.println("Activated window " + frame);
           }
         }
+        // be good.
+        super.windowActivated(e);
       }
-
+      /*
+       * Probably not necessary to do this - see TODO above. (non-Javadoc)
+       * 
+       * @see
+       * java.awt.event.WindowAdapter#windowDeactivated(java.awt.event.WindowEvent
+       * )
+       * 
+       * public void windowDeactivated(WindowEvent e) { if (currentAlignFrame ==
+       * frame) { currentAlignFrame = null; if (debug) {
+       * System.err.println("Deactivated window "+frame); } }
+       * super.windowDeactivated(e); }
+       */
     });
     frame.setVisible(true);
   }
 
   /**
-   * This paints the background surrounding the "Launch Jalview button"
+   * This paints the background surrounding the "Launch Jalview button" <br>
    * <br>
-   * <br>If file given in parameter not found, displays error message
-   *
-   * @param g graphics context
+   * If file given in parameter not found, displays error message
+   * 
+   * @param g
+   *          graphics context
    */
   public void paint(Graphics g)
   {
@@ -355,55 +1677,123 @@ public class JalviewLite
       g.setColor(Color.cyan);
       g.fillRect(0, 0, getSize().width, getSize().height);
       g.setColor(Color.red);
-      g.drawString("Jalview can't open file", 5, 15);
+      g.drawString(
+              MessageManager.getString("label.jalview_cannot_open_file"),
+              5, 15);
       g.drawString("\"" + file + "\"", 5, 30);
     }
     else if (embedded)
     {
       g.setColor(Color.black);
       g.setFont(new Font("Arial", Font.BOLD, 24));
-      g.drawString("Jalview Applet", 50, this.getSize().height / 2 - 30);
-      g.drawString("Loading Data...", 50, this.getSize().height / 2);
+      g.drawString(MessageManager.getString("label.jalview_applet"), 50,
+              getSize().height / 2 - 30);
+      g.drawString(MessageManager.getString("label.loading_data") + "...",
+              50, getSize().height / 2);
     }
   }
 
+  /**
+   * get all components associated with the applet of the given type
+   * 
+   * @param class1
+   * @return
+   */
+  public Vector getAppletWindow(Class class1)
+  {
+    Vector wnds = new Vector();
+    Component[] cmp = getComponents();
+    if (cmp != null)
+    {
+      for (int i = 0; i < cmp.length; i++)
+      {
+        if (class1.isAssignableFrom(cmp[i].getClass()))
+        {
+          wnds.addElement(cmp);
+        }
+      }
+    }
+    return wnds;
+  }
 
   class LoadJmolThread extends Thread
   {
+    private boolean running = false;
+
     public void run()
     {
-      try
+      if (running || checkedForJmol)
+      {
+        return;
+      }
+      running = true;
+      if (checkForJmol)
       {
-        if (!System.getProperty("java.version").startsWith("1.1"))
+        try
+        {
+          if (!System.getProperty("java.version").startsWith("1.1"))
+          {
+            Class.forName("org.jmol.adapter.smarter.SmarterJmolAdapter");
+            jmolAvailable = true;
+          }
+          if (!jmolAvailable)
+          {
+            System.out
+                    .println("Jmol not available - Using MCview for structures");
+          }
+        } catch (java.lang.ClassNotFoundException ex)
         {
-          Class.forName("org.jmol.adapter.smarter.SmarterJmolAdapter");
-          jmolAvailable = true;
         }
       }
-      catch (java.lang.ClassNotFoundException ex)
+      else
       {
-        System.out.println("Jmol not available - Using MCview for structures");
+        jmolAvailable = false;
+        if (debug)
+        {
+          System.err
+                  .println("Skipping Jmol check. Will use MCView (probably)");
+        }
       }
+      checkedForJmol = true;
+      running = false;
     }
-  }
 
+    public boolean notFinished()
+    {
+      return running || !checkedForJmol;
+    }
+  }
 
-  class LoadingThread
-      extends Thread
+  class LoadingThread extends Thread
   {
-    String file;
+    /**
+     * State variable: protocol for access to file source
+     */
     String protocol;
-    String format;
+
+    String _file; // alignment file or URL spec
+
+    String _file2; // second alignment file or URL spec
+
     JalviewLite applet;
 
-    public LoadingThread(String _file,
-                         JalviewLite _applet)
+    private void dbgMsg(String msg)
     {
-      if (applet.debug)
+      if (JalviewLite.debug)
       {
-        System.err.println("Loading thread started with:\n>>file\n"+_file+">>endfile");
+        System.err.println(msg);
       }
-      file = _file;
+    }
+
+    /**
+     * update the protocol state variable for accessing the datasource located
+     * by file.
+     * 
+     * @param file
+     * @return possibly updated datasource string
+     */
+    public String setProtocolState(String file)
+    {
       if (file.startsWith("PASTE"))
       {
         file = file.substring(5);
@@ -418,425 +1808,1194 @@ public class JalviewLite
         file = addProtocol(file);
         protocol = AppletFormatAdapter.URL;
       }
-      if (applet.debug)
-      {
-        System.err.println("Protocol identified as '"+protocol+"'");
-      }
-      format = new jalview.io.IdentifyFile().Identify(file, protocol);
-      if (applet.debug)
-      {
-        System.err.println("File identified as '"+format+"'");
-      }
+      dbgMsg("Protocol identified as '" + protocol + "'");
+      return file;
+    }
+
+    public LoadingThread(String file, String file2, JalviewLite _applet)
+    {
+      this._file = file;
+      this._file2 = file2;
       applet = _applet;
     }
 
     public void run()
     {
+      LoadJmolThread jmolchecker = new LoadJmolThread();
+      jmolchecker.start();
+      while (jmolchecker.notFinished())
+      {
+        // wait around until the Jmol check is complete.
+        try
+        {
+          Thread.sleep(2);
+        } catch (Exception e)
+        {
+        }
+      }
       startLoading();
+      // applet.callInitCallback();
     }
 
+    /**
+     * Load the alignment and any related files as specified by applet
+     * parameters
+     */
     private void startLoading()
     {
-      Alignment al = null;
-      try
+      dbgMsg("Loading thread started with:\n>>file\n" + _file + ">>endfile");
+
+      dbgMsg("Loading started.");
+
+      AlignFrame newAlignFrame = readAlignment(_file);
+      AlignFrame newAlignFrame2 = readAlignment(_file2);
+      if (newAlignFrame != null)
       {
-        al = new AppletFormatAdapter().readFile(file, protocol,
-                                                format);
+        addToDisplay(newAlignFrame, newAlignFrame2);
+        loadTree(newAlignFrame);
+
+        loadScoreFile(newAlignFrame);
+
+        loadFeatures(newAlignFrame);
+
+        loadAnnotations(newAlignFrame);
+
+        loadJnetFile(newAlignFrame);
+
+        loadPdbFiles(newAlignFrame);
       }
-      catch (java.io.IOException ex)
+      else
       {
-        ex.printStackTrace();
+        fileFound = false;
+        applet.remove(launcher);
+        applet.repaint();
       }
-      if ( (al != null) && (al.getHeight() > 0))
-      {
-        currentAlignFrame = new AlignFrame(al,
-                                           applet,
-                                           file,
-                                           embedded);
+      callInitCallback();
+    }
 
-        if (protocol == jalview.io.AppletFormatAdapter.PASTE)
+    /**
+     * Add an AlignFrame to the display; or if two are provided, a SplitFrame.
+     * 
+     * @param af
+     * @param af2
+     */
+    public void addToDisplay(AlignFrame af, AlignFrame af2)
+    {
+      if (af2 != null)
+      {
+        AlignmentI al1 = af.viewport.getAlignment();
+        AlignmentI al2 = af2.viewport.getAlignment();
+        if (AlignmentUtils.isMappable(al1, al2))
         {
-          currentAlignFrame.setTitle("Sequences from " + getDocumentBase());
+          SplitFrame sf = new SplitFrame(af, af2);
+          sf.addToDisplay(embedded, JalviewLite.this);
+          return;
         }
-
-        initialAlignFrame = currentAlignFrame;
-
-        currentAlignFrame.statusBar.setText("Successfully loaded file " + file);
-
-        String treeFile = applet.getParameter("tree");
-        if (treeFile == null)
+        else
         {
-          treeFile = applet.getParameter("treeFile");
+          String msg = "Could not map any sequence in " + af2.getTitle()
+                  + " as "
+                  + (al1.isNucleotide() ? "protein product" : "cDNA")
+                  + " for " + af.getTitle();
+          System.err.println(msg);
         }
+      }
+
+      af.addToDisplay(embedded);
+    }
 
-        if (treeFile != null)
+    /**
+     * Read the alignment file (from URL, text 'paste', or archive by
+     * classloader).
+     * 
+     * @return
+     */
+    protected AlignFrame readAlignment(String fileParam)
+    {
+      if (fileParam == null)
+      {
+        return null;
+      }
+      String resolvedFile = setProtocolState(fileParam);
+      String format = new IdentifyFile().Identify(resolvedFile, protocol);
+      dbgMsg("File identified as '" + format + "'");
+      AlignmentI al = null;
+      try
+      {
+        al = new AppletFormatAdapter().readFile(resolvedFile, protocol,
+                format);
+        if ((al != null) && (al.getHeight() > 0))
         {
-          try
+          dbgMsg("Successfully loaded file.");
+          al.setDataset(null);
+          AlignFrame newAlignFrame = new AlignFrame(al, applet,
+                  resolvedFile, embedded, false);
+          newAlignFrame.setTitle(resolvedFile);
+          if (initialAlignFrame == null)
           {
-            if (inArchive(treeFile))
-            {
-              protocol = AppletFormatAdapter.CLASSLOADER;
-            }
-            else
-            {
-              protocol = AppletFormatAdapter.URL;
-              treeFile = addProtocol(treeFile);
-            }
+            initialAlignFrame = newAlignFrame;
+          }
+          // update the focus.
+          currentAlignFrame = newAlignFrame;
 
-            jalview.io.NewickFile fin = new jalview.io.NewickFile(treeFile,
-                protocol);
+          if (protocol == AppletFormatAdapter.PASTE)
+          {
+            newAlignFrame.setTitle(MessageManager.formatMessage(
+                    "label.sequences_from", new Object[] { applet
+                            .getDocumentBase().toString() }));
+          }
 
-            fin.parse();
+          newAlignFrame.statusBar.setText(MessageManager.formatMessage(
+                  "label.successfully_loaded_file",
+                  new Object[] { resolvedFile }));
 
-            if (fin.getTree() != null)
+          return newAlignFrame;
+        }
+      } catch (java.io.IOException ex)
+      {
+        dbgMsg("File load exception.");
+        ex.printStackTrace();
+        if (debug)
+        {
+          try
+          {
+            FileParse fp = new FileParse(resolvedFile, protocol);
+            String ln = null;
+            dbgMsg(">>>Dumping contents of '" + resolvedFile + "' " + "("
+                    + protocol + ")");
+            while ((ln = fp.nextLine()) != null)
             {
-              currentAlignFrame.loadTree(fin, treeFile);
+              dbgMsg(ln);
             }
-          }
-          catch (Exception ex)
+            dbgMsg(">>>Dump finished.");
+          } catch (Exception e)
           {
-            ex.printStackTrace();
+            System.err
+                    .println("Exception when trying to dump the content of the file parameter.");
+            e.printStackTrace();
           }
         }
+      }
+      return null;
+    }
 
-        String param = getParameter("features");
-        if (param != null)
+    /**
+     * Load PDBFiles if any specified by parameter(s). Returns true if loaded,
+     * else false.
+     * 
+     * @param alignFrame
+     * @return
+     */
+    protected boolean loadPdbFiles(AlignFrame alignFrame)
+    {
+      boolean result = false;
+      /*
+       * <param name="alignpdbfiles" value="false/true"/> Undocumented for 2.6 -
+       * related to JAL-434
+       */
+
+      applet.setAlignPdbStructures(getDefaultParameter("alignpdbfiles",
+              false));
+      /*
+       * <param name="PDBfile" value="1gaq.txt PDB|1GAQ|1GAQ|A PDB|1GAQ|1GAQ|B
+       * PDB|1GAQ|1GAQ|C">
+       * 
+       * <param name="PDBfile2" value="1gaq.txt A=SEQA B=SEQB C=SEQB">
+       * 
+       * <param name="PDBfile3" value="1q0o Q45135_9MICO">
+       */
+
+      int pdbFileCount = 0;
+      // Accumulate pdbs here if they are heading for the same view (if
+      // alignPdbStructures is true)
+      Vector pdbs = new Vector();
+      // create a lazy matcher if we're asked to
+      jalview.analysis.SequenceIdMatcher matcher = (applet
+              .getDefaultParameter("relaxedidmatch", false)) ? new jalview.analysis.SequenceIdMatcher(
+              alignFrame.getAlignViewport().getAlignment()
+                      .getSequencesArray()) : null;
+
+      String param;
+      do
+      {
+        if (pdbFileCount > 0)
         {
-          if (!inArchive(param))
-          {
-            param = addProtocol(param);
-          }
-
-          currentAlignFrame.parseFeaturesFile(param, protocol);
+          param = applet.getParameter("PDBFILE" + pdbFileCount);
         }
-
-        param = getParameter("showFeatureSettings");
-        if (param != null && param.equalsIgnoreCase("true"))
+        else
         {
-          currentAlignFrame.viewport.showSequenceFeatures(true);
-          new FeatureSettings(currentAlignFrame.alignPanel);
+          param = applet.getParameter("PDBFILE");
         }
 
-        param = getParameter("annotations");
         if (param != null)
         {
-          if (!inArchive(param))
-          {
-            param = addProtocol(param);
-          }
+          PDBEntry pdb = new PDBEntry();
 
-          new AnnotationFile().readAnnotationFile(
-              currentAlignFrame.viewport.getAlignment(),
-              param,
-              protocol);
+          String seqstring;
+          SequenceI[] seqs = null;
+          String[] chains = null;
 
-          currentAlignFrame.alignPanel.fontChanged();
-          currentAlignFrame.alignPanel.setScrollValues(0, 0);
-
-        }
+          StringTokenizer st = new StringTokenizer(param, " ");
 
-        param = getParameter("jnetfile");
-        if (param != null)
-        {
-          try
+          if (st.countTokens() < 2)
           {
-            if (inArchive(param))
-            {
-              protocol = AppletFormatAdapter.CLASSLOADER;
-            }
-            else
+            String sequence = applet.getParameter("PDBSEQ");
+            if (sequence != null)
             {
-              protocol = AppletFormatAdapter.URL;
-              param = addProtocol(param);
+              seqs = new SequenceI[] { matcher == null ? (Sequence) alignFrame
+                      .getAlignViewport().getAlignment().findName(sequence)
+                      : matcher.findIdMatch(sequence) };
             }
 
-            jalview.io.JPredFile predictions = new jalview.io.JPredFile(
-                param, protocol);
-            new JnetAnnotationMaker().add_annotation(predictions,
-                currentAlignFrame.viewport.getAlignment(),
-                0, false); // do not add sequence profile from concise output
-            currentAlignFrame.alignPanel.fontChanged();
-            currentAlignFrame.alignPanel.setScrollValues(0, 0);
           }
-          catch (Exception ex)
+          else
           {
-            ex.printStackTrace();
-          }
-        }
-
-        /*
-         <param name="PDBfile" value="1gaq.txt PDB|1GAQ|1GAQ|A PDB|1GAQ|1GAQ|B PDB|1GAQ|1GAQ|C">
-
-         <param name="PDBfile2" value="1gaq.txt A=SEQA B=SEQB C=SEQB">
-
-         <param name="PDBfile3" value="1q0o Q45135_9MICO">
-        */
+            param = st.nextToken();
+            Vector tmp = new Vector();
+            Vector tmp2 = new Vector();
 
+            while (st.hasMoreTokens())
+            {
+              seqstring = st.nextToken();
+              StringTokenizer st2 = new StringTokenizer(seqstring, "=");
+              if (st2.countTokens() > 1)
+              {
+                // This is the chain
+                tmp2.addElement(st2.nextToken());
+                seqstring = st2.nextToken();
+              }
+              tmp.addElement(matcher == null ? (Sequence) alignFrame
+                      .getAlignViewport().getAlignment()
+                      .findName(seqstring) : matcher.findIdMatch(seqstring));
+            }
 
-        int pdbFileCount = 0;
-        do{
-          if (pdbFileCount > 0)
-            param = getParameter("PDBFILE" + pdbFileCount);
-          else
-            param = getParameter("PDBFILE");
+            seqs = new SequenceI[tmp.size()];
+            tmp.copyInto(seqs);
+            if (tmp2.size() == tmp.size())
+            {
+              chains = new String[tmp2.size()];
+              tmp2.copyInto(chains);
+            }
+          }
+          param = setProtocolState(param);
 
-          if (param != null)
+          if (// !jmolAvailable
+          // &&
+          protocol == AppletFormatAdapter.CLASSLOADER && !useXtrnalSviewer)
           {
-            PDBEntry pdb = new PDBEntry();
-
-            String seqstring;
-            SequenceI[] seqs = null;
-            String [] chains = null;
-
-            StringTokenizer st = new StringTokenizer(param, " ");
+            // Re: JAL-357 : the bug isn't a problem if we are using an
+            // external viewer!
+            // TODO: verify this Re:
+            // https://mantis.lifesci.dundee.ac.uk/view.php?id=36605
+            // This exception preserves the current behaviour where, even if
+            // the local pdb file was identified in the class loader
+            protocol = AppletFormatAdapter.URL; // this is probably NOT
+            // CORRECT!
+            param = addProtocol(param); //
+          }
 
-            if (st.countTokens() < 2)
-            {
-              String sequence = applet.getParameter("PDBSEQ");
-              if (sequence != null)
-                seqs = new SequenceI[]
-                    {
-                    (Sequence) currentAlignFrame.
-                    getAlignViewport().getAlignment().
-                    findName(sequence)};
+          pdb.setFile(param);
 
-            }
-            else
+          if (seqs != null)
+          {
+            for (int i = 0; i < seqs.length; i++)
             {
-              param = st.nextToken();
-              Vector tmp = new Vector();
-              Vector tmp2 = new Vector();
-
-              while (st.hasMoreTokens())
+              if (seqs[i] != null)
               {
-                seqstring = st.nextToken();
-                StringTokenizer st2 = new StringTokenizer(seqstring,"=");
-                if(st2.countTokens()>1)
-                {
-                  //This is the chain
-                  tmp2.addElement(st2.nextToken());
-                  seqstring = st2.nextToken();
-                }
-                tmp.addElement( (Sequence) currentAlignFrame.
-                                 getAlignViewport().getAlignment().
-                                 findName(seqstring));
+                ((Sequence) seqs[i]).addPDBId(pdb);
+                StructureSelectionManager.getStructureSelectionManager(
+                        applet).registerPDBEntry(pdb);
               }
-
-              seqs = new SequenceI[tmp.size()];
-              tmp.copyInto(seqs);
-              if(tmp2.size()==tmp.size())
+              else
               {
-                chains = new String[tmp2.size()];
-                tmp2.copyInto(chains);
+                if (JalviewLite.debug)
+                {
+                  // this may not really be a problem but we give a warning
+                  // anyway
+                  System.err
+                          .println("Warning: Possible input parsing error: Null sequence for attachment of PDB (sequence "
+                                  + i + ")");
+                }
               }
             }
 
-            if (inArchive(param) && !jmolAvailable)
+            if (!alignPdbStructures)
             {
-              protocol = AppletFormatAdapter.CLASSLOADER;
+              alignFrame.newStructureView(applet, pdb, seqs, chains,
+                      protocol);
             }
             else
             {
-              protocol = AppletFormatAdapter.URL;
-              param = addProtocol(param);
+              pdbs.addElement(new Object[] { pdb, seqs, chains,
+                  new String(protocol) });
             }
+          }
+        }
 
-            pdb.setFile(param);
+        pdbFileCount++;
+      } while (param != null || pdbFileCount < 10);
+      if (pdbs.size() > 0)
+      {
+        SequenceI[][] seqs = new SequenceI[pdbs.size()][];
+        PDBEntry[] pdb = new PDBEntry[pdbs.size()];
+        String[][] chains = new String[pdbs.size()][];
+        String[] protocols = new String[pdbs.size()];
+        for (int pdbsi = 0, pdbsiSize = pdbs.size(); pdbsi < pdbsiSize; pdbsi++)
+        {
+          Object[] o = (Object[]) pdbs.elementAt(pdbsi);
+          pdb[pdbsi] = (PDBEntry) o[0];
+          seqs[pdbsi] = (SequenceI[]) o[1];
+          chains[pdbsi] = (String[]) o[2];
+          protocols[pdbsi] = (String) o[3];
+        }
+        alignFrame.alignedStructureView(applet, pdb, seqs, chains,
+                protocols);
+        result = true;
+      }
+      return result;
+    }
 
-            if(seqs!=null)
-            {
-              for (int i = 0; i < seqs.length; i++)
-              {
-                ( (Sequence) seqs[i]).addPDBId(pdb);
-              }
+    /**
+     * Load in a Jnetfile if specified by parameter. Returns true if loaded,
+     * else false.
+     * 
+     * @param alignFrame
+     * @return
+     */
+    protected boolean loadJnetFile(AlignFrame alignFrame)
+    {
+      boolean result = false;
+      String param = applet.getParameter("jnetfile");
+      if (param != null)
+      {
+        try
+        {
+          param = setProtocolState(param);
+          JPredFile predictions = new JPredFile(param, protocol);
+          JnetAnnotationMaker.add_annotation(predictions,
+                  alignFrame.viewport.getAlignment(), 0, false);
+          // false == do not add sequence profile from concise output
+          SequenceI repseq = alignFrame.viewport.getAlignment()
+                  .getSequenceAt(0);
+          alignFrame.viewport.getAlignment().setSeqrep(repseq);
+          ColumnSelection cs = new ColumnSelection();
+          cs.hideInsertionsFor(repseq);
+          alignFrame.viewport.setColumnSelection(cs);
+          alignFrame.alignPanel.fontChanged();
+          alignFrame.alignPanel.setScrollValues(0, 0);
+          result = true;
+        } catch (Exception ex)
+        {
+          ex.printStackTrace();
+        }
+      }
+      return result;
+    }
 
-              if (jmolAvailable)
-              {
-                new jalview.appletgui.AppletJmol(pdb,
-                                                 seqs,
-                                                 chains,
-                                                 currentAlignFrame.alignPanel,
-                                                 protocol);
-                lastFrameX += 40;
-                lastFrameY+=40;
-              }
-              else
-                    new MCview.AppletPDBViewer(pdb,
-                                           seqs,
-                                           chains,
-                                           currentAlignFrame.alignPanel,
-                                           protocol);
-            }
-          }
+    /**
+     * Load annotations if specified by parameter. Returns true if loaded, else
+     * false.
+     * 
+     * @param alignFrame
+     * @return
+     */
+    protected boolean loadAnnotations(AlignFrame alignFrame)
+    {
+      boolean result = false;
+      String param = applet.getParameter("annotations");
+      if (param != null)
+      {
+        param = setProtocolState(param);
 
-          pdbFileCount++;
+        if (new AnnotationFile().annotateAlignmentView(alignFrame.viewport,
+                param, protocol))
+        {
+          alignFrame.alignPanel.fontChanged();
+          alignFrame.alignPanel.setScrollValues(0, 0);
+          result = true;
         }
-        while(pdbFileCount < 10);
-        
-        /////////////////////////////
-        // modify display of features
-        //
-        // hide specific groups
-        param = getParameter("hidefeaturegroups");
-        if (param != null)
+        else
         {
-          applet.setFeatureGroupState(param, false);
+          System.err
+                  .println("Annotations were not added from annotation file '"
+                          + param + "'");
         }
-        // show specific groups
-        param = getParameter("showfeaturegroups");
-        if (param != null)
+      }
+      return result;
+    }
+
+    /**
+     * Load features file and view settings as specified by parameters. Returns
+     * true if features were loaded, else false.
+     * 
+     * @param alignFrame
+     * @return
+     */
+    protected boolean loadFeatures(AlignFrame alignFrame)
+    {
+      boolean result = false;
+      // ///////////////////////////
+      // modify display of features
+      // we do this before any features have been loaded, ensuring any hidden
+      // groups are hidden when features first displayed
+      //
+      // hide specific groups
+      //
+      String param = applet.getParameter("hidefeaturegroups");
+      if (param != null)
+      {
+        alignFrame.setFeatureGroupState(separatorListToArray(param), false);
+        // applet.setFeatureGroupStateOn(newAlignFrame, param, false);
+      }
+      // show specific groups
+      param = applet.getParameter("showfeaturegroups");
+      if (param != null)
+      {
+        alignFrame.setFeatureGroupState(separatorListToArray(param), true);
+        // applet.setFeatureGroupStateOn(newAlignFrame, param, true);
+      }
+      // and now load features
+      param = applet.getParameter("features");
+      if (param != null)
+      {
+        param = setProtocolState(param);
+
+        result = alignFrame.parseFeaturesFile(param, protocol);
+      }
+
+      param = applet.getParameter("showFeatureSettings");
+      if (param != null && param.equalsIgnoreCase(TRUE))
+      {
+        alignFrame.viewport.setShowSequenceFeatures(true);
+        new FeatureSettings(alignFrame.alignPanel);
+      }
+      return result;
+    }
+
+    /**
+     * Load a score file if specified by parameter. Returns true if file was
+     * loaded, else false.
+     * 
+     * @param alignFrame
+     */
+    protected boolean loadScoreFile(AlignFrame alignFrame)
+    {
+      boolean result = false;
+      String sScoreFile = applet.getParameter("scoreFile");
+      if (sScoreFile != null && !"".equals(sScoreFile))
+      {
+        try
+        {
+          if (debug)
+          {
+            System.err
+                    .println("Attempting to load T-COFFEE score file from the scoreFile parameter");
+          }
+          result = alignFrame.loadScoreFile(sScoreFile);
+          if (!result)
+          {
+            System.err
+                    .println("Failed to parse T-COFFEE parameter as a valid score file ('"
+                            + sScoreFile + "')");
+          }
+        } catch (Exception e)
+        {
+          System.err.printf("Cannot read score file: '%s'. Cause: %s \n",
+                  sScoreFile, e.getMessage());
+        }
+      }
+      return result;
+    }
+
+    /**
+     * Load a tree for the alignment if specified by parameter. Returns true if
+     * a tree was loaded, else false.
+     * 
+     * @param alignFrame
+     * @return
+     */
+    protected boolean loadTree(AlignFrame alignFrame)
+    {
+      boolean result = false;
+      String treeFile = applet.getParameter("tree");
+      if (treeFile == null)
+      {
+        treeFile = applet.getParameter("treeFile");
+      }
+
+      if (treeFile != null)
+      {
+        try
+        {
+          treeFile = setProtocolState(treeFile);
+          NewickFile fin = new NewickFile(treeFile, protocol);
+          fin.parse();
+
+          if (fin.getTree() != null)
+          {
+            alignFrame.loadTree(fin, treeFile);
+            result = true;
+            dbgMsg("Successfully imported tree.");
+          }
+          else
+          {
+            dbgMsg("Tree parameter did not resolve to a valid tree.");
+          }
+        } catch (Exception ex)
         {
-          applet.setFeatureGroupState(param, true);
+          ex.printStackTrace();
         }
       }
-      else
-      {
-        fileFound = false;
-        remove(launcher);
-        repaint();
-      }
+      return result;
     }
 
     /**
      * Discovers whether the given file is in the Applet Archive
-     * @param file String
+     * 
+     * @param file
+     *          String
      * @return boolean
      */
     boolean inArchive(String file)
     {
-      //This might throw a security exception in certain browsers
-      //Netscape Communicator for instance.
+      // This might throw a security exception in certain browsers
+      // Netscape Communicator for instance.
       try
       {
-        return (getClass().getResourceAsStream("/" + file) != null);
-      }
-      catch (Exception ex)
+        boolean rtn = (getClass().getResourceAsStream("/" + file) != null);
+        if (debug)
+        {
+          System.err.println("Resource '" + file + "' was "
+                  + (rtn ? "" : "not") + " located by classloader.");
+        }
+        return rtn;
+      } catch (Exception ex)
       {
-        System.out.println("Exception checking resources: " + file + " " + ex);
+        System.out.println("Exception checking resources: " + file + " "
+                + ex);
         return false;
       }
     }
 
-    String addProtocol(String file)
+    /**
+     * If the file is not already in URL format, tries to locate it by resolving
+     * as a URL.
+     * 
+     * @param f
+     * @return
+     */
+    String addProtocol(final String f)
     {
-      if (file.indexOf("://") == -1)
+      if (f.indexOf("://") != -1)
       {
-        file = getCodeBase() + file;
+        // already has URL format
+        return f;
       }
 
-      return file;
+      /*
+       * Try relative to document base
+       */
+      URL documentBase = getDocumentBase();
+      String url = applet.resolveUrlForLocalOrAbsolute(f, documentBase);
+      if (urlExists(url))
+      {
+        if (debug)
+        {
+          System.err.println("Prepended document base '" + documentBase
+                  + "' to make: '" + url + "'");
+        }
+        return url;
+      }
+
+      /*
+       * Try relative to codebase
+       */
+      URL codeBase = getCodeBase();
+      url = applet.resolveUrlForLocalOrAbsolute(f, codeBase);
+      if (urlExists(url))
+      {
+        if (debug)
+        {
+          System.err.println("Prepended codebase '" + codeBase
+                  + "' to make: '" + url + "'");
+        }
+        return url;
+      }
+
+      return f;
+    }
+
+    /**
+     * Returns true if an input stream can be opened on the specified URL, else
+     * false.
+     * 
+     * @param url
+     * @return
+     */
+    private boolean urlExists(String url)
+    {
+      InputStream is = null;
+      try
+      {
+        is = new URL(url).openStream();
+        if (is != null)
+        {
+          return true;
+        }
+      } catch (Exception x)
+      {
+        // ignore
+      } finally
+      {
+        if (is != null)
+        {
+          try
+          {
+            is.close();
+          } catch (IOException e)
+          {
+            // ignore
+          }
+        }
+      }
+      return false;
+    }
+  }
+
+  /**
+   * @return the default alignFrame acted on by the public applet methods. May
+   *         return null with an error message on System.err indicating the
+   *         fact.
+   */
+  public AlignFrame getDefaultTargetFrame()
+  {
+    if (currentAlignFrame != null)
+    {
+      return currentAlignFrame;
+    }
+    if (initialAlignFrame != null)
+    {
+      return initialAlignFrame;
     }
+    System.err
+            .println("Implementation error: Jalview Applet API cannot work out which AlignFrame to use.");
+    return null;
   }
 
-  public String[] tabbedListToArray(String list)
+  /**
+   * separator used for separatorList
+   */
+  protected String separator = "" + ((char) 0x00AC); // the default used to be
+                                                     // '|' but many sequence
+                                                     // IDS include pipes.
+
+  /**
+   * set to enable the URL based javascript execution mechanism
+   */
+  public boolean jsfallbackEnabled = false;
+
+  /**
+   * parse the string into a list
+   * 
+   * @param list
+   * @return elements separated by separator
+   */
+  public String[] separatorListToArray(String list)
+  {
+    return separatorListToArray(list, separator);
+  }
+
+  /**
+   * parse the string into a list
+   * 
+   * @param list
+   * @param separator
+   * @return elements separated by separator
+   */
+  public String[] separatorListToArray(String list, String separator)
   {
-    if (list==null || list.equals(""))
+    int seplen = separator.length();
+    if (list == null || list.equals("") || list.equals(separator))
+    {
       return null;
+    }
     java.util.Vector jv = new Vector();
-    int cp=0,pos;
-    while ((pos=list.indexOf("\t",cp))>cp)
+    int cp = 0, pos;
+    while ((pos = list.indexOf(separator, cp)) > cp)
     {
-      jv.addElement(list.substring(cp,pos));
-      cp = pos+1;
+      jv.addElement(list.substring(cp, pos));
+      cp = pos + seplen;
     }
-    if (cp<list.length())
+    if (cp < list.length())
     {
-      jv.addElement(list.substring(cp));
+      String c = list.substring(cp);
+      if (!c.equals(separator))
+      {
+        jv.addElement(c);
+      }
     }
-    if (jv.size()>0)
-    { String[] v = new String[jv.size()];
-      jv.copyInto(v);
+    if (jv.size() > 0)
+    {
+      String[] v = new String[jv.size()];
+      for (int i = 0; i < v.length; i++)
+      {
+        v[i] = (String) jv.elementAt(i);
+      }
       jv.removeAllElements();
       if (debug)
       {
-        System.err.println("Array from Tabbed List:\n"+v.length+"\n"+v.toString());
+        System.err.println("Array from '" + separator
+                + "' separated List:\n" + v.length);
+        for (int i = 0; i < v.length; i++)
+        {
+          System.err.println("item " + i + " '" + v[i] + "'");
+        }
       }
       return v;
     }
     if (debug)
     {
-      System.err.println("Empty Array from Tabbed List");
+      System.err.println("Empty Array from '" + separator
+              + "' separated List");
     }
     return null;
   }
 
-  public String ArraytotabbedList(String[] list)
+  /**
+   * concatenate the list with separator
+   * 
+   * @param list
+   * @return concatenated string
+   */
+  public String arrayToSeparatorList(String[] list)
+  {
+    return arrayToSeparatorList(list, separator);
+  }
+
+  /**
+   * concatenate the list with separator
+   * 
+   * @param list
+   * @param separator
+   * @return concatenated string
+   */
+  public String arrayToSeparatorList(String[] list, String separator)
   {
     StringBuffer v = new StringBuffer();
-    if (list!=null)
+    if (list != null && list.length > 0)
     {
-      for (int i=0,iSize=list.length-1;i<iSize;i++)
-      { 
-        if (list[i]!=null)
-        {  
-          v.append(list[i]); 
+      for (int i = 0, iSize = list.length; i < iSize; i++)
+      {
+        if (list[i] != null)
+        {
+          if (i > 0)
+          {
+            v.append(separator);
+          }
+          v.append(list[i]);
         }
-        v.append("\t");
-      }
-      if (list[list.length-1]!=null)
-      { v.append(list[list.length-1]);
       }
       if (debug)
       {
-        System.err.println("Tabbed List:\n"+v.toString());
+        System.err.println("Returning '" + separator
+                + "' separated List:\n");
+        System.err.println(v);
       }
       return v.toString();
     }
     if (debug)
     {
-      System.err.println("Empty Tabbed List\n");
+      System.err.println("Returning empty '" + separator
+              + "' separated List\n");
     }
-    return "";
+    return "" + separator;
   }
-  /**
-   * @return
-   * @see jalview.appletgui.AlignFrame#getFeatureGroups()
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getFeatureGroups()
    */
   public String getFeatureGroups()
   {
-    String lst = ArraytotabbedList(currentAlignFrame.getFeatureGroups());
+    String lst = arrayToSeparatorList(getDefaultTargetFrame()
+            .getFeatureGroups());
     return lst;
   }
-  /**
-   * @param alf alignframe to get feature groups on
-   * @return
-   * @see jalview.appletgui.AlignFrame#getFeatureGroups()
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getFeatureGroupsOn(jalview.appletgui.AlignFrame
+   * )
    */
   public String getFeatureGroupsOn(AlignFrame alf)
   {
-    String lst = ArraytotabbedList(alf.getFeatureGroups());
+    String lst = arrayToSeparatorList(alf.getFeatureGroups());
     return lst;
   }
-  /**
-   * @param visible
-   * @return
-   * @see jalview.appletgui.AlignFrame#getFeatureGroupsOfState(boolean)
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getFeatureGroupsOfState(boolean)
    */
   public String getFeatureGroupsOfState(boolean visible)
   {
-    return ArraytotabbedList(currentAlignFrame.getFeatureGroupsOfState(visible));
+    return arrayToSeparatorList(getDefaultTargetFrame()
+            .getFeatureGroupsOfState(visible));
   }
-  /**
-   * @param alf align frame to get groups of state visible
-   * @param visible
-   * @return
-   * @see jalview.appletgui.AlignFrame#getFeatureGroupsOfState(boolean)
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see
+   * jalview.bin.JalviewLiteJsApi#getFeatureGroupsOfStateOn(jalview.appletgui
+   * .AlignFrame, boolean)
    */
   public String getFeatureGroupsOfStateOn(AlignFrame alf, boolean visible)
   {
-    return ArraytotabbedList(alf.getFeatureGroupsOfState(visible));
-  }  /**
-   * @param groups tab separated list of group names 
-   * @param state true or false
-   * @see jalview.appletgui.AlignFrame#setFeatureGroupState(java.lang.String[], boolean)
+    return arrayToSeparatorList(alf.getFeatureGroupsOfState(visible));
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#setFeatureGroupStateOn(jalview.appletgui.
+   * AlignFrame, java.lang.String, boolean)
    */
-  public void setFeatureGroupStateOn(AlignFrame alf, String groups, boolean state)
+  public void setFeatureGroupStateOn(final AlignFrame alf,
+          final String groups, boolean state)
   {
-    boolean st = state;//!(state==null || state.equals("") || state.toLowerCase().equals("false"));
-    alf.setFeatureGroupState(tabbedListToArray(groups), st);
+    final boolean st = state;// !(state==null || state.equals("") ||
+    // state.toLowerCase().equals("false"));
+    java.awt.EventQueue.invokeLater(new Runnable()
+    {
+      @Override
+      public void run()
+      {
+        alf.setFeatureGroupState(separatorListToArray(groups), st);
+      }
+    });
   }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#setFeatureGroupState(java.lang.String,
+   * boolean)
+   */
   public void setFeatureGroupState(String groups, boolean state)
   {
-    setFeatureGroupStateOn(currentAlignFrame, groups, state);
+    setFeatureGroupStateOn(getDefaultTargetFrame(), groups, state);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getSeparator()
+   */
+  public String getSeparator()
+  {
+    return separator;
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#setSeparator(java.lang.String)
+   */
+  public void setSeparator(String separator)
+  {
+    if (separator == null || separator.length() < 1)
+    {
+      // reset to default
+      separator = "" + ((char) 0x00AC);
+    }
+    this.separator = separator;
+    if (debug)
+    {
+      System.err.println("Default Separator now: '" + separator + "'");
+    }
+  }
+
+  /**
+   * get boolean value of applet parameter 'name' and return default if
+   * parameter is not set
+   * 
+   * @param name
+   *          name of paremeter
+   * @param def
+   *          the value to return otherwise
+   * @return true or false
+   */
+  public boolean getDefaultParameter(String name, boolean def)
+  {
+    String stn;
+    if ((stn = getParameter(name)) == null)
+    {
+      return def;
+    }
+    if (TRUE.equalsIgnoreCase(stn))
+    {
+      return true;
+    }
+    return false;
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#addPdbFile(jalview.appletgui.AlignFrame,
+   * java.lang.String, java.lang.String, java.lang.String)
+   */
+  public boolean addPdbFile(AlignFrame alFrame, String sequenceId,
+          String pdbEntryString, String pdbFile)
+  {
+    return alFrame.addPdbFile(sequenceId, pdbEntryString, pdbFile);
+  }
+
+  protected void setAlignPdbStructures(boolean alignPdbStructures)
+  {
+    this.alignPdbStructures = alignPdbStructures;
+  }
+
+  public boolean isAlignPdbStructures()
+  {
+    return alignPdbStructures;
+  }
+
+  public void start()
+  {
+    // callInitCallback();
+  }
+
+  private Hashtable<String, long[]> jshashes = new Hashtable<String, long[]>();
+
+  private Hashtable<String, Hashtable<String, String[]>> jsmessages = new Hashtable<String, Hashtable<String, String[]>>();
+
+  public void setJsMessageSet(String messageclass, String viewId,
+          String[] colcommands)
+  {
+    Hashtable<String, String[]> msgset = jsmessages.get(messageclass);
+    if (msgset == null)
+    {
+      msgset = new Hashtable<String, String[]>();
+      jsmessages.put(messageclass, msgset);
+    }
+    msgset.put(viewId, colcommands);
+    long[] l = new long[colcommands.length];
+    for (int i = 0; i < colcommands.length; i++)
+    {
+      l[i] = colcommands[i].hashCode();
+    }
+    jshashes.put(messageclass + "|" + viewId, l);
+  }
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see jalview.bin.JalviewLiteJsApi#getJsMessage(java.lang.String,
+   * java.lang.String)
+   */
+  public String getJsMessage(String messageclass, String viewId)
+  {
+    Hashtable<String, String[]> msgset = jsmessages.get(messageclass);
+    if (msgset != null)
+    {
+      String[] msgs = msgset.get(viewId);
+      if (msgs != null)
+      {
+        for (int i = 0; i < msgs.length; i++)
+        {
+          if (msgs[i] != null)
+          {
+            String m = msgs[i];
+            msgs[i] = null;
+            return m;
+          }
+        }
+      }
+    }
+    return "";
+  }
+
+  public boolean isJsMessageSetChanged(String string, String string2,
+          String[] colcommands)
+  {
+    long[] l = jshashes.get(string + "|" + string2);
+    if (l == null && colcommands != null)
+    {
+      return true;
+    }
+    for (int i = 0; i < colcommands.length; i++)
+    {
+      if (l[i] != colcommands[i].hashCode())
+      {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  private Vector jsExecQueue = new Vector();
+
+  public Vector getJsExecQueue()
+  {
+    return jsExecQueue;
+  }
+
+  public void setExecutor(JSFunctionExec jsFunctionExec2)
+  {
+    jsFunctionExec = jsFunctionExec2;
+  }
+
+  /**
+   * return the given colour value parameter or the given default if parameter
+   * not given
+   * 
+   * @param colparam
+   * @param defcolour
+   * @return
+   */
+  public Color getDefaultColourParameter(String colparam, Color defcolour)
+  {
+    String colprop = getParameter(colparam);
+    if (colprop == null || colprop.trim().length() == 0)
+    {
+      return defcolour;
+    }
+    Color col = jalview.schemes.ColourSchemeProperty
+            .getAWTColorFromName(colprop);
+    if (col == null)
+    {
+      try
+      {
+        col = new jalview.schemes.UserColourScheme(colprop).findColour('A');
+      } catch (Exception ex)
+      {
+        System.err.println("Couldn't parse '" + colprop
+                + "' as a colour for " + colparam);
+        col = null;
+      }
+    }
+    return (col == null) ? defcolour : col;
+
+  }
+
+  public void openJalviewHelpUrl()
+  {
+    String helpUrl = getParameter("jalviewhelpurl");
+    if (helpUrl == null || helpUrl.trim().length() < 5)
+    {
+      helpUrl = "http://www.jalview.org/help.html";
+    }
+    showURL(helpUrl, "HELP");
+  }
+
+  /**
+   * form a complete URL given a path to a resource and a reference location on
+   * the same server
+   * 
+   * @param url
+   *          - an absolute path on the same server as localref or a document
+   *          located relative to localref
+   * @param localref
+   *          - a URL on the same server as url
+   * @return a complete URL for the resource located by url
+   */
+  private String resolveUrlForLocalOrAbsolute(String url, URL localref)
+  {
+    String codebase = localref.toString();
+    if (url.indexOf("/") == 0)
+    {
+      String localfile = localref.getFile();
+      url = codebase.substring(0, codebase.length() - localfile.length())
+              + url;
+    }
+    else
+    {
+      url = localref + url;
+    }
+    if (debug)
+    {
+      System.err.println("URL: " + localref.toString());
+      System.err.println("URL.getFile: " + localref.getFile());
+      System.err.println("URL.getPath: " + localref.getPath());
+      System.err.println("URL.getQuery: " + localref.getQuery());
+      System.err.println("returning " + url);
+    }
+    return url;
+  }
+
+  /**
+   * open a URL in the browser - resolving it according to relative refs and
+   * coping with javascript: protocol if necessary.
+   * 
+   * @param url
+   * @param target
+   */
+  public void showURL(String url, String target)
+  {
+    try
+    {
+      if (url.indexOf(":") == -1)
+      {
+        // TODO: verify (Bas Vroling bug) prepend codebase or server URL to
+        // form valid URL
+        // Should really use docbase, not codebase.
+        URL prepend;
+        url = resolveUrlForLocalOrAbsolute(
+                url,
+                prepend = getDefaultParameter("resolvetocodebase", false) ? getDocumentBase()
+                        : getCodeBase());
+        if (debug)
+        {
+          System.err
+                  .println("Show url (prepended "
+                          + prepend
+                          + " - toggle resolvetocodebase if code/docbase resolution is wrong): "
+                          + url);
+        }
+      }
+      else
+      {
+        if (debug)
+        {
+          System.err.println("Show url: " + url);
+        }
+      }
+      if (url.indexOf("javascript:") == 0)
+      {
+        // no target for the javascript context
+        getAppletContext().showDocument(new java.net.URL(url));
+      }
+      else
+      {
+        getAppletContext().showDocument(new java.net.URL(url), target);
+      }
+    } catch (Exception ex)
+    {
+      ex.printStackTrace();
+    }
   }
+
+  /**
+   * bind structures in a viewer to any matching sequences in an alignFrame (use
+   * sequenceIds to limit scope of search to specific sequences)
+   * 
+   * @param alFrame
+   * @param viewer
+   * @param sequenceIds
+   * @return TODO: consider making an exception structure for indicating when
+   *         binding fails public SequenceStructureBinding
+   *         addStructureViewInstance( AlignFrame alFrame, Object viewer, String
+   *         sequenceIds) {
+   * 
+   *         if (sequenceIds != null && sequenceIds.length() > 0) { return
+   *         alFrame.addStructureViewInstance(viewer,
+   *         separatorListToArray(sequenceIds)); } else { return
+   *         alFrame.addStructureViewInstance(viewer, null); } // return null; }
+   */
 }