--- rat/lonratedt.pm	2001/06/30 14:05:57	1.4
+++ rat/lonratedt.pm	2007/07/11 20:32:01	1.88
@@ -1,71 +1,847 @@
 # The LearningOnline Network with CAPA
 # Edit Handler for RAT Maps
-# (TeX Content Handler
 #
-# 05/29/00,05/30 Gerd Kortemeyer)
-# 7/1,6/30 Gerd Kortemeyer
+# $Id: lonratedt.pm,v 1.88 2007/07/11 20:32:01 albertel Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA 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 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA 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 LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+
 
 package Apache::lonratedt;
 
+=pod
+
+=head1 NAME
+
+Apache::lonratedt: simple resource assembly tool
+
+=head1 SYNOPSIS
+
+lonratedt provides the routines and the handler for the Advanced
+    Resource Assembly Tool (RAT), and ties the various pieces together
+    with Javascript.
+
+=head1 OVERVIEW
+
+=head2 Map Representation
+
+=begin latex
+
+%
+\begin{figure}
+\begin{center}\includegraphics[%
+  width=0.55\paperwidth,bb = 0 0 200 100, draft, type=eps]{Map_Example}\end{center}
+
+
+\caption{\label{Map_In_Advanced_Editor}Example of a Map in the Advanced Editor}
+\end{figure}
+%
+\begin{figure}
+\begin{lyxcode}
+<map>
+
+~~<resource~id=\char`\"{}1\char`\"{}
+
+~~~~src=\char`\"{}/res/msu/korte/phy231welcome.html\char`\"{}
+
+~~~~type=\char`\"{}start\char`\"{}
+
+~~~~title=\char`\"{}Start\char`\"{}>
+
+~~~~</resource>
+
+~~<resource~id=\char`\"{}2\char`\"{}
+
+~~~~src=\char`\"{}\char`\"{}~type=\char`\"{}finish\char`\"{}
+
+~~~~title=\char`\"{}Finish\char`\"{}>
+
+~~~~</resource>
+
+~~<resource~id=\char`\"{}6\char`\"{}
+
+~~~~src=\char`\"{}/res/msu/korte/tests/units.problem\char`\"{}
+
+~~~~type=\char`\"{}mandatory\char`\"{}
+
+~~~~title=\char`\"{}Physical~Units~Test\char`\"{}>
+
+~~~~</resource>
+
+~~<resource~id=\char`\"{}9\char`\"{}
+
+~~~~src=\char`\"{}/res/msu/korte/chapters/onedim.sequence\char`\"{}
+
+~~~~title=\char`\"{}Motion~in~One~Dimension\char`\"{}>
+
+~~~~</resource>
+
+~~<resource~id=\char`\"{}11\char`\"{}
+
+~~~~src=\char`\"{}/res/msu/bauer/bridges/units.sequence\char`\"{}
+
+~~~~title=\char`\"{}Physical~Units~Refresher\char`\"{}>
+
+~~~~</resource>
+
+~~<condition~id=\char`\"{}19\char`\"{}
+
+~~~~type=\char`\"{}stop\char`\"{}
+
+~~~~value=\char`\"{}user.assessments{[}this./res/msu/korte/tests/units.problem{]}.status=solved\char`\"{}>
+
+~~~~</condition>
+
+~~<link~from=\char`\"{}1\char`\"{}~to=\char`\"{}6\char`\"{}></link>
+
+~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}9\char`\"{}~condition=\char`\"{}19\char`\"{}></link>
+
+~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}11\char`\"{}></link>
+
+~~<link~from=\char`\"{}11\char`\"{}~to=\char`\"{}6\char`\"{}></link>
+
+~~</map>
+\end{lyxcode}
+
+\caption{\label{XML}XML for Map in Figure \ref{Map_In_Advanced_Editor}}
+\end{figure}
+
+=end latex
+
+Fig. "XML for Map in Figure" shows the XML representation of the
+resource map shown in Fig. "Example of a Map in the Advanced Editor",
+which is the format in which maps are stored. In the figure, however,
+additional graphical map layout information generated by the Advanced
+Resource Assembly Tool is not displayed. This graphical information is
+optional to re-generate the same graphical layout when the map is
+brought up again in the Resource Assembly Tool, and is not needed for
+any other system functionality.
+
+Maps can be generated by tools other than the Resource Assembly
+Tool. In particular, an author might have some other representation of
+a course sequence, which can be converted into a map using scripts. If
+this map then were to be brought up in the Resource Assembly Tool, the
+Tool would automatically generate a graphical layout for it. Each
+entry of the map (resources, conditions and links) is stored in a
+separate tag.
+
+Resources and conditionsX<conditions> have to have unique ID
+numbers. These numbers are automatically generated by the Resource
+Assembly Tool when the entry is first created, or added to the entries
+when a map generated outside the Resource Assembly Tool is first
+retrieved. They can also be assigned by custom scripts or added in by
+hand.
+
+In the XML example, entry 1 is the start resource of the map. When
+this map is accessed, the source (src) URL of this tag will be the
+first resource rendered. Entry 2 is the finish resource of this
+map. This resource will be the last resource in the sequence of
+resources. Entry 6 is a problem resource with the given URL and title,
+as well as the priority "mandatory". Entry 19 is a condition, which is
+used by the link between entries 6, the problem, and 9, a
+sequence. I<The final syntax for conditions has not yet been
+determined.>
+
+=cut
+
 use strict;
 use Apache::Constants qw(:common);
 use Apache::lonnet;
+use Apache::lonsequence();
+use Apache::loncommon();
+use Apache::lonlocal;
+use LONCAPA::map();
+use File::Copy;
+use LONCAPA;
+use HTML::Entities();
 
 # --------------------------------------------------------- Build up RAT screen
 sub ratedt {
   my ($r,$url)=@_;
-  $r->print(<<ENDDOCUMENT);
-
-<html>
-<head>
-<script language="JavaScript">
+  my %layout = ('border' => "0");
+    if ($env{'environment.remote'} eq 'off') {
+      $layout{'rows'} = "1,250,*";
+  } else {
+      $layout{'rows'} = "1,70,*";
+  }
+  my $js ='
+<script type="text/javascript">
     var flag=0;
-</script>
-</head>
-<frameset rows="1,50,*" border=0>
-<frame name=server src="$url/loadonly/ratserver" noresize noscroll>
-<frame name=code src="/adm/rat/code.html">
-<frame name=mapout src="/adm/rat/map.html">
-</frameset>
-</html>
+</script>';
+
+  my $start_page = 
+      &Apache::loncommon::start_page('Edit Sequence',$js,
+				     {'frameset'    => 1,
+				      'add_entries' => \%layout});
+  my $end_page = 
+      &Apache::loncommon::end_page({'frameset' => 1});
 
+  $r->print(<<ENDDOCUMENT);
+$start_page
+<frame name="server" src="$url/loadonly/ratserver" noresize="noresize"
+       noscroll="noscroll" />
+<frame name="code" src="$url/loadonly/adveditmenu" />
+<frame name="mapout" src="/adm/rat/map.html" />
+$end_page
 ENDDOCUMENT
 }
 
+# ---------------------------------------------------------------- Make buttons
+
+sub buttons {
+    my $adv=shift;
+    my $output='<form method=post>';     
+    if ($adv==1) {
+	$output.='<input type=submit name=forceadv value="'.&mt('Edit').'">'.
+	    &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');;
+    } else {
+        unless ($adv==2) {
+           $output.='<input type=submit name=forcesmp value="'.&mt('Simple Edit').'">'.
+	    &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation');
+        }
+	$output.='<input type=submit name=forceadv value="'.&mt('Advanced Edit').'">'.
+	    &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');
+    }
+    return $output.'</form><hr>';
+}
+
+# ----------------------------------------------------------------- Edit script
+sub editscript {
+    my $mode=shift;
+    my $resurl=
+	&Apache::loncommon::escape_single(&Apache::loncommon::lastresurl());
+    return(<<ENDSCRIPT);
+var srch;
+var srchflag=-1; // 1 means currently open
+                 // 0 means closed (but has been open)
+                 // -1 means never yet opened/defined
+var srchmode='';
+
+var idx;
+var idxflag=-1; // 1 means currently open
+                 // 0 means closed (but has been open)
+                 // -1 means never yet opened/defined
+var idxmode='';
+
+// ------------------------------------------------------ Clears indexer window
+function idxclear() {
+  idx.document.clear();
+}
+
+// ------------------------------------------------------- Clears search window
+function srchclear() {
+  srch.document.clear();
+}
+
+// ------------------------------------------------------ Closes indexer window
+function idxclose() {
+  if (idx && !idx.closed) {
+    idxflag=0;
+    idx.close();
+  }
+}
+
+// ------------------------------------------------------- Closes search window
+function srchclose() {
+  if (srch && !srch.closed) {
+    srchflag=0;
+    srch.close();
+  }
+}
+
+// -------------------------------------------------------- Open indexer window
+function idxopen(mode) {
+   var options="scrollbars=1,resizable=1,menubar=0,location=1,toolbar=1";
+   idxmode=mode;
+   idxflag=1;
+   idx=open('$resurl/?inhibitmenu=yes&launch=1&mode=$mode&catalogmode='+mode,'idxout',options);
+   idx.focus();
+}
+
+// ------------------------------------------------------ Open groupsort window
+function groupopen(url,recover,bookmarks) {
+   var options="scrollbars=1,resizable=1,menubar=0";
+   idxflag=1;
+   idx=open("/adm/groupsort?inhibitmenu=yes&mode=$mode&recover="+recover+"&readfile="+url+"&bookmarks="+bookmarks,"idxout",options);
+   idx.focus();
+}
+
+// --------------------------------------------------------- Open search window
+function srchopen(mode) {
+   var options="scrollbars=1,resizable=1,menubar=0";
+   srchmode=mode;
+   srchflag=1;
+   srch=open("/adm/searchcat?inhibitmenu=yes&launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
+   srch.focus();
+}
+// ----------------------------------------------------- launch indexer browser
+function groupsearch() {
+   srchcheck('import');
+}
+
+function groupimport() {
+   idxcheck('import');
+}
+
+// ------------------------------------------------------- Do srch status check
+function srchcheck(mode) {
+   if (!srch || srch.closed || srchmode!=mode) {
+      srchopen(mode);
+   }
+   srch.focus();
+}
+
+// -------------------------------------------------------- Do idx status check
+function idxcheck(mode) {
+   if (!idx || idx.closed || idxmode!=mode) {
+      idxopen(mode);
+   }
+   idx.focus();
+}
+
+
+    var editbrowser;
+    function openbrowser(formname,elementname,only,omit) {
+        var url = '$resurl/?';
+        if (editbrowser == null) {
+            url += 'launch=1&';
+        }
+        url += 'inhibitmenu=yes&';
+        url += 'catalogmode=interactive&';
+        url += 'mode=edit&';
+        url += 'form=' + formname + '&';
+        if (only != null) {
+            url += 'only=' + only + '&';
+        } 
+        if (omit != null) {
+            url += 'omit=' + omit + '&';
+        }
+        url += 'element=' + elementname + '';
+        var title = 'Browser';
+        var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
+        options += ',width=700,height=600';
+        editbrowser = open(url,title,options,'1');
+        editbrowser.focus();
+    }
+ENDSCRIPT
+}
+# ------------------------------------------------------- Simple edit processor
+
 sub smpedt {
-   my ($r,$fn)=@_;
-   $r->print(<<ENDSMPHEAD);
-<html>
-<body bgcolor='#FFFFFF'>
-<form method=post>
-<input type=submit name=forceadv 
-value="Advanced Map Editing - Resource Assembly Tool"><hr>
+   my ($r,$url,$errtext)=@_;
+   my $buttons=&buttons(2);
+   my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
+   my $targetmsg='';
+   if ($env{'form.save'}) {
+       copy($tmpfn,&Apache::lonnet::filelocation('',$url));
+       unlink($tmpfn);
+       my ($errtext,$fatal)=
+	   &LONCAPA::map::mapread(&Apache::lonnet::filelocation('',$url),'');
+       unless ($fatal) {
+	   $targetmsg='<b>'.&mt('Saved.').'</b><br />';
+       } else {
+	   $targetmsg='<b>'.&mt('An error occured while saving.').'</b><br />';
+       }
+   }
+   if ($env{'form.revert'}) {
+       $targetmsg='<b>'.&mt('Reverted.').'</b><br />';
+       unlink($tmpfn);
+       my ($errtext,$fatal)=
+	   &LONCAPA::map::mapread(&Apache::lonnet::filelocation('',$url),'');
+   }
+   if (-e $tmpfn) {
+      $targetmsg=
+        '<b><font color="red">'.&mt('You are working with an unsaved version of your map.').'</font></b><br>';
+      my ($errtext,$fatal)=&LONCAPA::map::mapread($tmpfn,'');
+   }
+# ---------------------------------------------------------- Process form input
+
+   my @importselect=&Apache::loncommon::get_env_multiple('form.importsel');
+   my @targetselect=&Apache::loncommon::get_env_multiple('form.target');
+# ============================================================ Process commands
+
+   my $targetdetail=$env{'form.targetdetail'};
+   my $importdetail=$env{'form.curimpdetail'};
+
+# ---------------------------------------------------- Importing from groupsort
+   if (($env{'form.importdetail'}) && (!$env{'form.impfortarget'})) {
+
+       $importdetail='';
+       my @curimport=split(/\&/,$env{'form.curimpdetail'});
+
+       my $lastsel;
+
+       if (defined($importselect[-1])) {
+	   $lastsel=$importselect[-1];
+       } else {
+           $lastsel=$#curimport;
+       }
+
+       for (my $i=0;$i<=$lastsel;$i++) {
+           my ($name,$url)=split(/\=/,$curimport[$i]);
+           if ($url) {
+              $importdetail.='&'.$name.'='.$url;
+	   }
+       }
+
+      $importdetail.='&'.$env{'form.importdetail'};
+
+       for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
+           my ($name,$url)=split(/\=/,$curimport[$i]);
+           if ($url) {
+              $importdetail.='&'.$name.'='.$url;
+	  }
+       }
+       $importdetail=~s/\&+/\&/g;
+       $importdetail=~s/^\&//;
+
+# ------------------------------------------------------------------- Clear all
+   } elsif ($env{'form.clear'}) {
+       $importdetail='';
+# ------------------------------------------------------------ Discard selected
+   } elsif ($env{'form.discard'}) {
+       $importdetail='';
+       my @curimport=split(/\&/,$env{'form.curimpdetail'});
+       foreach (@importselect) {
+	   $curimport[$_]='';
+       }
+       for (my $i=0;$i<=$#curimport;$i++) {
+           my ($name,$url)=split(/\=/,$curimport[$i]);
+           if ($url) {
+              $importdetail.='&'.$name.'='.$url;
+	   }
+       }
+# --------------------------------------------------------- Loading another map
+   } elsif ($env{'form.loadmap'}) {
+       $importdetail='';
+       my @curimport=split(/\&/,$env{'form.curimpdetail'});
+
+       my $lastsel;
+
+       if (defined($importselect[-1])) {
+	   $lastsel=$importselect[-1];
+       } else {
+           $lastsel=$#curimport;
+       }
+
+       for (my $i=0;$i<=$lastsel;$i++) {
+           my ($name,$url)=split(/\=/,$curimport[$i]);
+           if ($url) {
+              $importdetail.='&'.$name.'='.$url;
+	   }
+       }
+
+       foreach (
+    &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
+	   my ($name,$url)=split(/\:/,$_);
+           if ($url) {
+              $importdetail.='&'.&escape($name).'='.
+		 	         &escape($url);
+	  }
+       }
+
+       for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
+           my ($name,$url)=split(/\=/,$curimport[$i]);
+           if ($url) {
+              $importdetail.='&'.$name.'='.$url;
+	  }
+       }
+       $importdetail=~s/\&+/\&/g;
+       $importdetail=~s/^\&//;
+
+# ------------------------------------------------ Groupimport/search to target
+   } elsif ($env{'form.importdetail'}) {
+       my $lastsel;
+       if (defined($targetselect[-1])) {
+	   $lastsel=$targetselect[-1];
+       } else {
+           $lastsel=$#LONCAPA::map::order+1;
+       }
+       &LONCAPA::map::pastetarget($lastsel,split(/\&/,$env{'form.importdetail'}));
+       &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
+# ------------------------------------------------------------------------- Cut
+   } elsif (($env{'form.cut'}) || ($env{'form.copy'})) {
+       $importdetail='';
+       my @curimport=split(/\&/,$env{'form.curimpdetail'});
+
+       my $lastsel;
+
+       if (defined($importselect[-1])) {
+	   $lastsel=$importselect[-1];
+       } else {
+           $lastsel=$#curimport;
+       }
+
+       for (my $i=0;$i<=$lastsel;$i++) {
+           my ($name,$url)=split(/\=/,$curimport[$i]);
+           if ($url) {
+              $importdetail.='&'.$name.'='.$url;
+	   }
+       }
+
+       foreach (@targetselect) {
+	   my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$LONCAPA::map::order[$_-1]]);
+           if ($url) {
+              $importdetail.='&'.&escape($name).'='.
+		 	         &escape($url);
+	  }
+       }
+
+       for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
+           my ($name,$url)=split(/\=/,$curimport[$i]);
+           if ($url) {
+              $importdetail.='&'.$name.'='.$url;
+	  }
+       }
+       $importdetail=~s/\&+/\&/g;
+       $importdetail=~s/^\&//;
+
+       if ($env{'form.cut'}) {
+           my @neworder=();
+           for (my $i=0;$i<=$#LONCAPA::map::order;$i++) {
+               my $include=1;
+               foreach (@targetselect) {
+		   if ($_-1==$i) { $include=0; }
+               }
+               if ($include) { 
+		   $neworder[$#neworder+1]=$LONCAPA::map::order[$i]; 
+	       } else {
+		   &LONCAPA::map::makezombie($LONCAPA::map::order[$i]);
+	       }
+           }
+           @LONCAPA::map::order=@neworder;
+           &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));      
+       }
+
+# ----------------------------------------------------------------------- Paste
+   } elsif ($env{'form.paste'}) {
+       my $lastsel;
+       if (defined($targetselect[-1])) {
+	   $lastsel=$targetselect[-1];
+       } else {
+           $lastsel=$#LONCAPA::map::order+1;
+       }
+       my @newsequence;
+       my @curimport=split(/\&/,$env{'form.curimpdetail'});
+       foreach (@importselect) {
+          $newsequence[$#newsequence+1]=$curimport[$_];
+       }
+       &LONCAPA::map::pastetarget($lastsel,@newsequence);
+       &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
+# -------------------------------------------------------------------- Move up 
+   } elsif ($env{'form.moveup'}) {
+       foreach (sort @targetselect) {
+           if ($_-1>0) {
+              my $movethis=$LONCAPA::map::order[$_-1];
+              $LONCAPA::map::order[$_-1]=$LONCAPA::map::order[$_-2];
+              $LONCAPA::map::order[$_-2]=$movethis;
+	  }
+       }
+       &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
+# ------------------------------------------------------------------ Move down
+   } elsif ($env{'form.movedown'}) {
+       foreach (reverse sort @targetselect) {
+           if ($_-1<$#LONCAPA::map::order) {
+              my $movethis=$LONCAPA::map::order[$_-1];
+              $LONCAPA::map::order[$_-1]=$LONCAPA::map::order[$_];
+              $LONCAPA::map::order[$_]=$movethis;
+	   }
+       }
+       &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
+# --------------------------------------------------------------------- Rename
+   } elsif ($env{'form.renameres'}) {
+       my $residx=$LONCAPA::map::order[$env{'form.renameidx'}-1];
+       my ($name,@resrest)=split(/\:/,$LONCAPA::map::resources[$residx]);
+       $name=$env{'form.renametitle'};
+       $name=~s/\:/\&colon\;/g;
+       $LONCAPA::map::resources[$residx]=$name.':'.join(':',@resrest);
+       &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
+   }
+# ------------------------------------------------------------ Assemble windows
+   
+   my $idx=-1;
+   $importdetail='&'.$importdetail;
+   $importdetail=~s/^\&+/\&/;
+   my $importwindow=
+       '<option value="-1"> ---- '.&mt('Import and Paste Area').' ---- </option>'.
+     join("\n",map {
+       $idx++;
+       if ($_) { 
+          my ($name,$url)=split(/\=/,$_);
+          unless ($name) { $name=(split(/\//,$url))[-1]; }
+          unless ($name) { $name='EMPTY'; }
+          '<option value="'.$idx.'">'.&unescape($name).
+                                    '</option>';
+      }
+   } split(/\&/,$importdetail));
+
+   $idx=0;
+   $targetdetail='';
+   my $targetwindow=       
+       '<option value="0"> ------- '.&mt('Target Edit Map').' ------- </option>'.
+     join("\n",map { 
+       my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$_]);
+       unless ($name) {  $name=(split(/\//,$url))[-1]; }
+       unless ($name) { $name='EMPTY'; }
+       $name = &LONCAPA::map::qtescape($name);
+       $url  = &LONCAPA::map::qtescape($url);
+       $targetdetail.='&'.&escape($name).'='.
+	                  &escape($url);
+       $idx++;
+       $name = &HTML::Entities::encode($name,'\'"<>&');
+       '<option value="'.$idx.'">'.$name.'</option>';
+   } @LONCAPA::map::order);
+
+# ----------------------------------------------------- Start simple RAT screen
+   my $editscript=&editscript('simple');
+
+   my %lt=&Apache::lonlocal::texthash(
+				      'sa' => 'Save',
+				      'nt' => 'New Title',
+				      'se' => 'Search',
+				      'im' => 'Import',
+                                      'bk' => 'Import Bookmarks',
+				      'vi' => 'View',
+				      'lm' => 'Load Map',
+				      'ds' => 'Discard Selected',
+				      'ca' => 'Clear All',
+				      'ta' => 'Temporary Assembly Workspace',
+				      'rv' => 'Revert to Last Saved',
+                                      'sa' => 'Save',
+                                      'mu' => 'Move Up',
+                                      'md' => 'Move Down',
+                                      're' => 'Rename',
+                                      'as' => 'after selected',
+                                      'cs' => 'Cut selected',
+                                      'ps' => 'Copy selected',
+                                      'pas' => 'Paste after selected',
+                                      'reco' => 'Recover Deleted'
+				      );
+   my $js=<<ENDJS;
+<script type="text/javascript">
+
+   $editscript
+
+   function openview(entry) {
+       var url=unescape((entry.split('='))[1]);
+       var parts=new Array;
+       if (url) { open(url,'cat'); }
+   }
+
+   function viewtarget() {
+       openview((document.forms.simpleedit.targetdetail.value.split('&'))
+                [document.forms.simpleedit.target.selectedIndex]);
+   }
+
+   function viewimport() {
+       openview((document.forms.simpleedit.curimpdetail.value.split('&'))
+                [document.forms.simpleedit.importsel.selectedIndex]);
+   }
+
+   function renametarget() {
+       var selidx=document.forms.simpleedit.target.selectedIndex;
+       var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
+                [selidx];
+       var oldname=unescape((entry.split('='))[0]);
+       newtitle=prompt('$lt{'nt'}',oldname);
+       if (newtitle) {
+           document.forms.simpleedit.renameres.value=1;
+           document.forms.simpleedit.renameidx.value=selidx;
+           document.forms.simpleedit.renametitle.value=newtitle;
+	   document.forms.simpleedit.submit();
+       }
+   }
+
+</script>
+ENDJS
+
+    my $start_page = &Apache::loncommon::start_page(undef,$js).
+        &Apache::loncommon::help_open_menu('Sequence_Simple_Editor_Creation',
+					   'Sequence_Simple_Editor_Creation',
+					   6,'RAT');    
+    my $end_page = &Apache::loncommon::end_page();
+
+    $r->print(<<ENDSMPHEAD);
+$start_page
+$buttons
+<font color=red>$errtext</font>
+<form name=simpleedit method=post>
+<input type=hidden name=forcesmp value=1>
+<input type=hidden name=renameres value=0>
+<input type=hidden name=renametitle value=''>
+<input type=hidden name=renameidx value=0>
+<table>
+    <tr><th width="40%">$lt{'ta'}</th>
+<th>&nbsp;</th>
+<th width="40%">File: $url</th></tr>
+<tr><td bgcolor="#FFFFCC">
+<input type=button onClick="javascript:groupsearch()" value="$lt{'se'}">
+<input type=button onClick="javascript:groupimport();" value="$lt{'im'}">
+$lt{'as'}
+<hr>
+<input type=text size=20 name=importmap>
+<input type=button 
+onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
+value="Select Map"><input type=submit name=loadmap value="$lt{'lm'}"><hr>
+<input type=submit name="discard" value="$lt{'ds'}">
+<input type=submit name="clear" value="$lt{'ca'}">
+<input type=button onClick="javascript:viewimport()" value="$lt{'vi'}">
+
+    </td><td>&nbsp;</td><td bgcolor="#FFFFCC">
+
+<input type=button onClick=
+"javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}">
+<input type=button onClick=
+"javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}">
+<input type=button onClick=
+"javascript:impfortarget.value=1;groupopen(0,1,1);" value="$lt{'bk'}">
+<input type=button onClick=
+"javascript:impfortarget.value=1;groupopen('$url',1,0);" value="$lt{'reco'}">
+$lt{'as'}
+<hr>
+<input type=submit name="moveup" value="$lt{'mu'}">
+<input type=submit name="movedown" value="$lt{'md'}">
+<input type=button onClick="javascript:renametarget()" value="$lt{'re'}">
+<hr>$targetmsg
+<input type=submit name="revert" value="$lt{'rv'}">
+<input type=submit name="save" value="$lt{'sa'}">
+<input type=button onClick="javascript:viewtarget()" value="$lt{'vi'}">
+</td></tr>
+
+<tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
+$importwindow
+</select>
+</td>
+<td bgcolor="#FFFFAA" align="center">
+$lt{'cs'}<br>
+<input type=submit name=cut value='<<<'><p>
+<hr>
+$lt{'ps'}<br>
+<input type=submit name=copy value='<--'><p>
+<hr>
+$lt{'pas'}<br>
+<input type=submit name=paste value='-->'>
+</td>
+<td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
+$targetwindow
+</select>
+</table>
+<input type=hidden name=importdetail value="">
+<input type=hidden name=curimpdetail value="$importdetail">
+<input type=hidden name=targetdetail value="$targetdetail">
+<input type=hidden name=impfortarget value="0">
+</form>
+$end_page
 ENDSMPHEAD
-    $r->print(
-      '<input type=submit name=forcesmp value="Store"></form></body></html>');
 }
 
+# ----------------------------------------------------------------- No such dir
 sub nodir {
    my ($r,$dir)=@_;
-   $dir=~s/^\/home\/\w+\/public\_html//;
-   $r->print(<<ENDNODIR);
-<html>
-<body bgcolor='#FFFFFF'>
-<h1>No such directory: $dir</h1>
-</body>
-</html>
-ENDNODIR
+   $dir=~s{^/home/$LONCAPA::username_re/public_html}{};
+   $r->print(&Apache::loncommon::start_page(undef,undef,
+					    {'only_body' => 1,
+					     'bgcolor'   => '#FFFFFF',}).
+	     "<h1>No such directory: $dir</h1>".
+	     &Apache::loncommon::end_page());
+}
+
+# ---------------------------------------------------------------- View Handler
+
+sub viewmap {
+    my ($r,$url,$adv,$errtext)=@_;
+    $r->print(
+	      &Apache::loncommon::start_page('Edit Content of a Map').
+	      &Apache::loncommon::help_open_menu('','',6,'RAT').
+	      &buttons($adv));
+    if ($errtext) {
+	$r->print($errtext.'<hr />');
+    }
+    my $idx=0;
+    $r->print('<h1>'.$url.'</h1>');
+    if ($adv) {
+	$r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />');
+    }
+    $r->print( '<table border="0" cellspacing="2" cellpadding="4">'.
+               '<tr bgcolor="#DDDDDD"><th>'.&mt('Type').'</th>'.
+               '<th>'.&mt('Title in map').'</th>'.
+               '<th>'.&mt('Filename of resource').'</th>'.
+               '<th>'.&mt('Link to published resource').'</th>'.
+               '<th>'.&mt('Link to resource in Construction Space').'</th>'.
+               '</tr>');
+    my @backgroundColors = ("#FFFFFF", "#F6F6F6");
+    foreach (&LONCAPA::map::attemptread(&Apache::lonnet::filelocation('',$url))) {
+	if (defined($_)) {
+            $idx++;
+	    my ($title,$url,$cond)=split(/\:/,$_);
+	    if ($cond eq 'cond') { next; }
+            $title= &LONCAPA::map::qtescape($title);
+            $url  = &LONCAPA::map::qtescape($url);
+            unless ($title) { $title=(split(/\//,$url))[-1] };
+            unless ($title) { $title='<i>'.&mt('Empty').'</i>'; }
+            my $resurl = $url;
+            my $resfilepath = $Apache::lonnet::perlvar{'lonDocRoot'}.$resurl;
+            my $filename; 
+            if ($resurl =~ m#/([^/]+)$#) {
+                $filename = $1;
+            }
+            my $cstrurl = $resurl;
+            $cstrurl =~ s#^/res/[^/]+/([^/]+)/#/priv/$1/#;
+            my $bgcol = $idx%2; 
+            $r->print('<tr bgcolor='.$backgroundColors[$bgcol].'><td>'.
+                      '<img src="'.&Apache::loncommon::icon($resfilepath).
+                      '" /></td><td>'.&HTML::Entities::encode(&LONCAPA::map::qtescape($title)).
+                      '</td><td>'.$filename.'</td><td>');
+            if ($url) {
+		$r->print('<a href="'.$resurl.'">'.&mt('Resource space').'</a>');
+            }
+            $r->print('</td><td>');
+            if ($url) {
+               $r->print('<a href="'.$cstrurl.'">'.
+                         &mt('Construction space').'</a>');
+            }
+            $r->print('</td></tr>'."\n");
+        }
+    }
+    $r->print('</table>');
+    $r->print(&Apache::loncommon::end_page());
 }
 
 # ================================================================ Main Handler
 
 sub handler {
   my $r=shift;
-  $r->content_type('text/html');
+  &Apache::loncommon::content_type($r,'text/html');
   $r->send_http_header;
 
   return OK if $r->header_only;
-
+  my $target = $env{'form.grade_target'};
+  if ($target eq 'meta') {
+      &Apache::loncommon::content_type($r,'text/html');
+      $r->send_http_header;
+      return OK;
+  }
+  
   my $url=$r->uri;
   my $fn=&Apache::lonnet::filelocation('',$url);
 
@@ -74,10 +850,12 @@ sub handler {
       &nodir($r,$dir);
       return OK;
   }
+
+# ------------------------------------------- Determine which tools can be used
   my $adv=0;
 
-  unless ($ENV{'form.forcesmp'}) {
-     if ($ENV{'form.forceadv'}) {
+  unless ($env{'form.forcesmp'}) {
+     if ($env{'form.forceadv'}) {
         $adv=1;
      } elsif (my $fh=Apache::File->new($fn)) {
 	 my $allmap=join('',<$fh>);
@@ -85,10 +863,22 @@ sub handler {
      }
   }
 
-  if ($adv) {
+  my $errtext='';
+  my $fatal=0;
+
+# -------------------------------------------------------------------- Load map
+  ($errtext,$fatal)=&LONCAPA::map::mapread($fn,$errtext);
+
+  if ($fatal==1) { $adv=1; }
+
+# ----------------------------------- adv==1 now means "graphical MUST be used"
+
+  if ($env{'form.forceadv'}) {
       &ratedt($r,$url);
+  } elsif ($env{'form.forcesmp'}) {
+      &smpedt($r,$url,$errtext);
   } else {
-      &smpedt($r,$fn);
+      &viewmap($r,$url,$adv,$errtext);
   }
   return OK;
 }