File:  [LON-CAPA] / rat / lonratedt.pm
Revision 1.84: download - view: text, annotated - select for diffs
Thu Nov 2 21:03:28 2006 UTC (17 years, 5 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- complete the switch to LONCAPA::map

    1: # The LearningOnline Network with CAPA
    2: # Edit Handler for RAT Maps
    3: #
    4: # $Id: lonratedt.pm,v 1.84 2006/11/02 21:03:28 albertel Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: 
   30: package Apache::lonratedt;
   31: 
   32: =pod
   33: 
   34: =head1 NAME
   35: 
   36: Apache::lonratedt: simple resource assembly tool
   37: 
   38: =head1 SYNOPSIS
   39: 
   40: lonratedt provides the routines and the handler for the Advanced
   41:     Resource Assembly Tool (RAT), and ties the various pieces together
   42:     with Javascript.
   43: 
   44: =head1 OVERVIEW
   45: 
   46: =head2 Map Representation
   47: 
   48: =begin latex
   49: 
   50: %
   51: \begin{figure}
   52: \begin{center}\includegraphics[%
   53:   width=0.55\paperwidth,bb = 0 0 200 100, draft, type=eps]{Map_Example}\end{center}
   54: 
   55: 
   56: \caption{\label{Map_In_Advanced_Editor}Example of a Map in the Advanced Editor}
   57: \end{figure}
   58: %
   59: \begin{figure}
   60: \begin{lyxcode}
   61: <map>
   62: 
   63: ~~<resource~id=\char`\"{}1\char`\"{}
   64: 
   65: ~~~~src=\char`\"{}/res/msu/korte/phy231welcome.html\char`\"{}
   66: 
   67: ~~~~type=\char`\"{}start\char`\"{}
   68: 
   69: ~~~~title=\char`\"{}Start\char`\"{}>
   70: 
   71: ~~~~</resource>
   72: 
   73: ~~<resource~id=\char`\"{}2\char`\"{}
   74: 
   75: ~~~~src=\char`\"{}\char`\"{}~type=\char`\"{}finish\char`\"{}
   76: 
   77: ~~~~title=\char`\"{}Finish\char`\"{}>
   78: 
   79: ~~~~</resource>
   80: 
   81: ~~<resource~id=\char`\"{}6\char`\"{}
   82: 
   83: ~~~~src=\char`\"{}/res/msu/korte/tests/units.problem\char`\"{}
   84: 
   85: ~~~~type=\char`\"{}mandatory\char`\"{}
   86: 
   87: ~~~~title=\char`\"{}Physical~Units~Test\char`\"{}>
   88: 
   89: ~~~~</resource>
   90: 
   91: ~~<resource~id=\char`\"{}9\char`\"{}
   92: 
   93: ~~~~src=\char`\"{}/res/msu/korte/chapters/onedim.sequence\char`\"{}
   94: 
   95: ~~~~title=\char`\"{}Motion~in~One~Dimension\char`\"{}>
   96: 
   97: ~~~~</resource>
   98: 
   99: ~~<resource~id=\char`\"{}11\char`\"{}
  100: 
  101: ~~~~src=\char`\"{}/res/msu/bauer/bridges/units.sequence\char`\"{}
  102: 
  103: ~~~~title=\char`\"{}Physical~Units~Refresher\char`\"{}>
  104: 
  105: ~~~~</resource>
  106: 
  107: ~~<condition~id=\char`\"{}19\char`\"{}
  108: 
  109: ~~~~type=\char`\"{}stop\char`\"{}
  110: 
  111: ~~~~value=\char`\"{}user.assessments{[}this./res/msu/korte/tests/units.problem{]}.status=solved\char`\"{}>
  112: 
  113: ~~~~</condition>
  114: 
  115: ~~<link~from=\char`\"{}1\char`\"{}~to=\char`\"{}6\char`\"{}></link>
  116: 
  117: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}9\char`\"{}~condition=\char`\"{}19\char`\"{}></link>
  118: 
  119: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}11\char`\"{}></link>
  120: 
  121: ~~<link~from=\char`\"{}11\char`\"{}~to=\char`\"{}6\char`\"{}></link>
  122: 
  123: ~~</map>
  124: \end{lyxcode}
  125: 
  126: \caption{\label{XML}XML for Map in Figure \ref{Map_In_Advanced_Editor}}
  127: \end{figure}
  128: 
  129: =end latex
  130: 
  131: Fig. "XML for Map in Figure" shows the XML representation of the
  132: resource map shown in Fig. "Example of a Map in the Advanced Editor",
  133: which is the format in which maps are stored. In the figure, however,
  134: additional graphical map layout information generated by the Advanced
  135: Resource Assembly Tool is not displayed. This graphical information is
  136: optional to re-generate the same graphical layout when the map is
  137: brought up again in the Resource Assembly Tool, and is not needed for
  138: any other system functionality.
  139: 
  140: Maps can be generated by tools other than the Resource Assembly
  141: Tool. In particular, an author might have some other representation of
  142: a course sequence, which can be converted into a map using scripts. If
  143: this map then were to be brought up in the Resource Assembly Tool, the
  144: Tool would automatically generate a graphical layout for it. Each
  145: entry of the map (resources, conditions and links) is stored in a
  146: separate tag.
  147: 
  148: Resources and conditionsX<conditions> have to have unique ID
  149: numbers. These numbers are automatically generated by the Resource
  150: Assembly Tool when the entry is first created, or added to the entries
  151: when a map generated outside the Resource Assembly Tool is first
  152: retrieved. They can also be assigned by custom scripts or added in by
  153: hand.
  154: 
  155: In the XML example, entry 1 is the start resource of the map. When
  156: this map is accessed, the source (src) URL of this tag will be the
  157: first resource rendered. Entry 2 is the finish resource of this
  158: map. This resource will be the last resource in the sequence of
  159: resources. Entry 6 is a problem resource with the given URL and title,
  160: as well as the priority "mandatory". Entry 19 is a condition, which is
  161: used by the link between entries 6, the problem, and 9, a
  162: sequence. I<The final syntax for conditions has not yet been
  163: determined.>
  164: 
  165: =cut
  166: 
  167: use strict;
  168: use Apache::Constants qw(:common);
  169: use Apache::lonnet;
  170: use Apache::lonratsrv;
  171: use Apache::lonsequence;
  172: use Apache::loncommon;
  173: use Apache::lonlocal;
  174: use LONCAPA::map();
  175: use File::Copy;
  176: use lib '/home/httpd/lib/perl/';
  177: use LONCAPA;
  178:  
  179: 
  180: 
  181: # --------------------------------------------------------- Build up RAT screen
  182: sub ratedt {
  183:   my ($r,$url)=@_;
  184:   my %layout = ('border' => "0");
  185:     if ($env{'environment.remote'} eq 'off') {
  186:       $layout{'rows'} = "1,250,*";
  187:   } else {
  188:       $layout{'rows'} = "1,70,*";
  189:   }
  190:   my $js ='
  191: <script type="text/javascript">
  192:     var flag=0;
  193: </script>';
  194: 
  195:   my $start_page = 
  196:       &Apache::loncommon::start_page('Edit Sequence',$js,
  197: 				     {'frameset'    => 1,
  198: 				      'add_entries' => \%layout});
  199:   my $end_page = 
  200:       &Apache::loncommon::end_page({'frameset' => 1});
  201: 
  202:   $r->print(<<ENDDOCUMENT);
  203: $start_page
  204: <frame name="server" src="$url/loadonly/ratserver" noresize="noresize"
  205:        noscroll="noscroll" />
  206: <frame name="code" src="$url/loadonly/adveditmenu" />
  207: <frame name="mapout" src="/adm/rat/map.html" />
  208: $end_page
  209: ENDDOCUMENT
  210: }
  211: 
  212: # ---------------------------------------------------------------- Make buttons
  213: 
  214: sub buttons {
  215:     my $adv=shift;
  216:     my $output='<form method=post>';     
  217:     if ($adv==1) {
  218: 	$output.='<input type=submit name=forceadv value="'.&mt('Edit').'">'.
  219: 	    &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');;
  220:     } else {
  221:         unless ($adv==2) {
  222:            $output.='<input type=submit name=forcesmp value="'.&mt('Simple Edit').'">'.
  223: 	    &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation');
  224:         }
  225: 	$output.='<input type=submit name=forceadv value="'.&mt('Advanced Edit').'">'.
  226: 	    &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');
  227:     }
  228:     return $output.'</form><hr>';
  229: }
  230: 
  231: # ----------------------------------------------------------------- Edit script
  232: sub editscript {
  233:     my $mode=shift;
  234:     my $resurl=
  235: 	&Apache::loncommon::escape_single(&Apache::loncommon::lastresurl());
  236:     return(<<ENDSCRIPT);
  237: var srch;
  238: var srchflag=-1; // 1 means currently open
  239:                  // 0 means closed (but has been open)
  240:                  // -1 means never yet opened/defined
  241: var srchmode='';
  242: 
  243: var idx;
  244: var idxflag=-1; // 1 means currently open
  245:                  // 0 means closed (but has been open)
  246:                  // -1 means never yet opened/defined
  247: var idxmode='';
  248: 
  249: // ------------------------------------------------------ Clears indexer window
  250: function idxclear() {
  251:   idx.document.clear();
  252: }
  253: 
  254: // ------------------------------------------------------- Clears search window
  255: function srchclear() {
  256:   srch.document.clear();
  257: }
  258: 
  259: // ------------------------------------------------------ Closes indexer window
  260: function idxclose() {
  261:   if (idx && !idx.closed) {
  262:     idxflag=0;
  263:     idx.close();
  264:   }
  265: }
  266: 
  267: // ------------------------------------------------------- Closes search window
  268: function srchclose() {
  269:   if (srch && !srch.closed) {
  270:     srchflag=0;
  271:     srch.close();
  272:   }
  273: }
  274: 
  275: // -------------------------------------------------------- Open indexer window
  276: function idxopen(mode) {
  277:    var options="scrollbars=1,resizable=1,menubar=0,location=1,toolbar=1";
  278:    idxmode=mode;
  279:    idxflag=1;
  280:    idx=open('$resurl/?launch=1&mode=$mode&catalogmode='+mode,'idxout',options);
  281:    idx.focus();
  282: }
  283: 
  284: // ------------------------------------------------------ Open groupsort window
  285: function groupopen(url,recover,bookmarks) {
  286:    var options="scrollbars=1,resizable=1,menubar=0";
  287:    idxflag=1;
  288:    idx=open("/adm/groupsort?mode=$mode&recover="+recover+"&readfile="+url+"&bookmarks="+bookmarks,"idxout",options);
  289:    idx.focus();
  290: }
  291: 
  292: // --------------------------------------------------------- Open search window
  293: function srchopen(mode) {
  294:    var options="scrollbars=1,resizable=1,menubar=0";
  295:    srchmode=mode;
  296:    srchflag=1;
  297:    srch=open("/adm/searchcat?launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
  298:    srch.focus();
  299: }
  300: // ----------------------------------------------------- launch indexer browser
  301: function groupsearch() {
  302:    srchcheck('import');
  303: }
  304: 
  305: function groupimport() {
  306:    idxcheck('import');
  307: }
  308: 
  309: // ------------------------------------------------------- Do srch status check
  310: function srchcheck(mode) {
  311:    if (!srch || srch.closed || srchmode!=mode) {
  312:       srchopen(mode);
  313:    }
  314:    srch.focus();
  315: }
  316: 
  317: // -------------------------------------------------------- Do idx status check
  318: function idxcheck(mode) {
  319:    if (!idx || idx.closed || idxmode!=mode) {
  320:       idxopen(mode);
  321:    }
  322:    idx.focus();
  323: }
  324: 
  325: 
  326:     var editbrowser;
  327:     function openbrowser(formname,elementname,only,omit) {
  328:         var url = '$resurl/?';
  329:         if (editbrowser == null) {
  330:             url += 'launch=1&';
  331:         }
  332:         url += 'catalogmode=interactive&';
  333:         url += 'mode=edit&';
  334:         url += 'form=' + formname + '&';
  335:         if (only != null) {
  336:             url += 'only=' + only + '&';
  337:         } 
  338:         if (omit != null) {
  339:             url += 'omit=' + omit + '&';
  340:         }
  341:         url += 'element=' + elementname + '';
  342:         var title = 'Browser';
  343:         var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
  344:         options += ',width=700,height=600';
  345:         editbrowser = open(url,title,options,'1');
  346:         editbrowser.focus();
  347:     }
  348: ENDSCRIPT
  349: }
  350: # ------------------------------------------------------- Simple edit processor
  351: 
  352: sub smpedt {
  353:    my ($r,$url,$errtext)=@_;
  354:    my $buttons=&buttons(2);
  355:    my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
  356:    my $targetmsg='';
  357:    if ($env{'form.save'}) {
  358:        copy($tmpfn,&Apache::lonnet::filelocation('',$url));
  359:        unlink($tmpfn);
  360:        my ($errtext,$fatal)=
  361: 	   &LONCAPA::map::mapread(&Apache::lonnet::filelocation('',$url),'');
  362:        unless ($fatal) {
  363: 	   $targetmsg='<b>'.&mt('Saved.').'</b><br />';
  364:        } else {
  365: 	   $targetmsg='<b>'.&mt('An error occured while saving.').'</b><br />';
  366:        }
  367:    }
  368:    if ($env{'form.revert'}) {
  369:        $targetmsg='<b>'.&mt('Reverted.').'</b><br />';
  370:        unlink($tmpfn);
  371:        my ($errtext,$fatal)=
  372: 	   &LONCAPA::map::mapread(&Apache::lonnet::filelocation('',$url),'');
  373:    }
  374:    if (-e $tmpfn) {
  375:       $targetmsg=
  376:         '<b><font color="red">'.&mt('You are working with an unsaved version of your map.').'</font></b><br>';
  377:       my ($errtext,$fatal)=&LONCAPA::map::mapread($tmpfn,'');
  378:    }
  379: # ---------------------------------------------------------- Process form input
  380: 
  381:    my @importselect=&Apache::loncommon::get_env_multiple('form.importsel');
  382:    my @targetselect=&Apache::loncommon::get_env_multiple('form.target');
  383: # ============================================================ Process commands
  384: 
  385:    my $targetdetail=$env{'form.targetdetail'};
  386:    my $importdetail=$env{'form.curimpdetail'};
  387: 
  388: # ---------------------------------------------------- Importing from groupsort
  389:    if (($env{'form.importdetail'}) && (!$env{'form.impfortarget'})) {
  390: 
  391:        $importdetail='';
  392:        my @curimport=split(/\&/,$env{'form.curimpdetail'});
  393: 
  394:        my $lastsel;
  395: 
  396:        if (defined($importselect[-1])) {
  397: 	   $lastsel=$importselect[-1];
  398:        } else {
  399:            $lastsel=$#curimport;
  400:        }
  401: 
  402:        for (my $i=0;$i<=$lastsel;$i++) {
  403:            my ($name,$url)=split(/\=/,$curimport[$i]);
  404:            if ($url) {
  405:               $importdetail.='&'.$name.'='.$url;
  406: 	   }
  407:        }
  408: 
  409:       $importdetail.='&'.$env{'form.importdetail'};
  410: 
  411:        for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
  412:            my ($name,$url)=split(/\=/,$curimport[$i]);
  413:            if ($url) {
  414:               $importdetail.='&'.$name.'='.$url;
  415: 	  }
  416:        }
  417:        $importdetail=~s/\&+/\&/g;
  418:        $importdetail=~s/^\&//;
  419: 
  420: # ------------------------------------------------------------------- Clear all
  421:    } elsif ($env{'form.clear'}) {
  422:        $importdetail='';
  423: # ------------------------------------------------------------ Discard selected
  424:    } elsif ($env{'form.discard'}) {
  425:        $importdetail='';
  426:        my @curimport=split(/\&/,$env{'form.curimpdetail'});
  427:        foreach (@importselect) {
  428: 	   $curimport[$_]='';
  429:        }
  430:        for (my $i=0;$i<=$#curimport;$i++) {
  431:            my ($name,$url)=split(/\=/,$curimport[$i]);
  432:            if ($url) {
  433:               $importdetail.='&'.$name.'='.$url;
  434: 	   }
  435:        }
  436: # --------------------------------------------------------- Loading another map
  437:    } elsif ($env{'form.loadmap'}) {
  438:        $importdetail='';
  439:        my @curimport=split(/\&/,$env{'form.curimpdetail'});
  440: 
  441:        my $lastsel;
  442: 
  443:        if (defined($importselect[-1])) {
  444: 	   $lastsel=$importselect[-1];
  445:        } else {
  446:            $lastsel=$#curimport;
  447:        }
  448: 
  449:        for (my $i=0;$i<=$lastsel;$i++) {
  450:            my ($name,$url)=split(/\=/,$curimport[$i]);
  451:            if ($url) {
  452:               $importdetail.='&'.$name.'='.$url;
  453: 	   }
  454:        }
  455: 
  456:        foreach (
  457:     &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
  458: 	   my ($name,$url)=split(/\:/,$_);
  459:            if ($url) {
  460:               $importdetail.='&'.&escape($name).'='.
  461: 		 	         &escape($url);
  462: 	  }
  463:        }
  464: 
  465:        for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
  466:            my ($name,$url)=split(/\=/,$curimport[$i]);
  467:            if ($url) {
  468:               $importdetail.='&'.$name.'='.$url;
  469: 	  }
  470:        }
  471:        $importdetail=~s/\&+/\&/g;
  472:        $importdetail=~s/^\&//;
  473: 
  474: # ------------------------------------------------ Groupimport/search to target
  475:    } elsif ($env{'form.importdetail'}) {
  476:        my $lastsel;
  477:        if (defined($targetselect[-1])) {
  478: 	   $lastsel=$targetselect[-1];
  479:        } else {
  480:            $lastsel=$#LONCAPA::map::order+1;
  481:        }
  482:        &LONCAPA::map::pastetarget($lastsel,split(/\&/,$env{'form.importdetail'}));
  483:        &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
  484: # ------------------------------------------------------------------------- Cut
  485:    } elsif (($env{'form.cut'}) || ($env{'form.copy'})) {
  486:        $importdetail='';
  487:        my @curimport=split(/\&/,$env{'form.curimpdetail'});
  488: 
  489:        my $lastsel;
  490: 
  491:        if (defined($importselect[-1])) {
  492: 	   $lastsel=$importselect[-1];
  493:        } else {
  494:            $lastsel=$#curimport;
  495:        }
  496: 
  497:        for (my $i=0;$i<=$lastsel;$i++) {
  498:            my ($name,$url)=split(/\=/,$curimport[$i]);
  499:            if ($url) {
  500:               $importdetail.='&'.$name.'='.$url;
  501: 	   }
  502:        }
  503: 
  504:        foreach (@targetselect) {
  505: 	   my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$LONCAPA::map::order[$_-1]]);
  506:            if ($url) {
  507:               $importdetail.='&'.&escape($name).'='.
  508: 		 	         &escape($url);
  509: 	  }
  510:        }
  511: 
  512:        for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
  513:            my ($name,$url)=split(/\=/,$curimport[$i]);
  514:            if ($url) {
  515:               $importdetail.='&'.$name.'='.$url;
  516: 	  }
  517:        }
  518:        $importdetail=~s/\&+/\&/g;
  519:        $importdetail=~s/^\&//;
  520: 
  521:        if ($env{'form.cut'}) {
  522:            my @neworder=();
  523:            for (my $i=0;$i<=$#LONCAPA::map::order;$i++) {
  524:                my $include=1;
  525:                foreach (@targetselect) {
  526: 		   if ($_-1==$i) { $include=0; }
  527:                }
  528:                if ($include) { 
  529: 		   $neworder[$#neworder+1]=$LONCAPA::map::order[$i]; 
  530: 	       } else {
  531: 		   &LONCAPA::map::makezombie($LONCAPA::map::order[$i]);
  532: 	       }
  533:            }
  534:            @LONCAPA::map::order=@neworder;
  535:            &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));      
  536:        }
  537: 
  538: # ----------------------------------------------------------------------- Paste
  539:    } elsif ($env{'form.paste'}) {
  540:        my $lastsel;
  541:        if (defined($targetselect[-1])) {
  542: 	   $lastsel=$targetselect[-1];
  543:        } else {
  544:            $lastsel=$#LONCAPA::map::order+1;
  545:        }
  546:        my @newsequence;
  547:        my @curimport=split(/\&/,$env{'form.curimpdetail'});
  548:        foreach (@importselect) {
  549:           $newsequence[$#newsequence+1]=$curimport[$_];
  550:        }
  551:        &LONCAPA::map::pastetarget($lastsel,@newsequence);
  552:        &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
  553: # -------------------------------------------------------------------- Move up 
  554:    } elsif ($env{'form.moveup'}) {
  555:        foreach (sort @targetselect) {
  556:            if ($_-1>0) {
  557:               my $movethis=$LONCAPA::map::order[$_-1];
  558:               $LONCAPA::map::order[$_-1]=$LONCAPA::map::order[$_-2];
  559:               $LONCAPA::map::order[$_-2]=$movethis;
  560: 	  }
  561:        }
  562:        &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
  563: # ------------------------------------------------------------------ Move down
  564:    } elsif ($env{'form.movedown'}) {
  565:        foreach (reverse sort @targetselect) {
  566:            if ($_-1<$#LONCAPA::map::order) {
  567:               my $movethis=$LONCAPA::map::order[$_-1];
  568:               $LONCAPA::map::order[$_-1]=$LONCAPA::map::order[$_];
  569:               $LONCAPA::map::order[$_]=$movethis;
  570: 	   }
  571:        }
  572:        &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
  573: # --------------------------------------------------------------------- Rename
  574:    } elsif ($env{'form.renameres'}) {
  575:        my $residx=$LONCAPA::map::order[$env{'form.renameidx'}-1];
  576:        my ($name,@resrest)=split(/\:/,$LONCAPA::map::resources[$residx]);
  577:        $name=$env{'form.renametitle'};
  578:        $name=~s/\:/\&colon\;/g;
  579:        $LONCAPA::map::resources[$residx]=$name.':'.join(':',@resrest);
  580:        &LONCAPA::map::storemap(&Apache::lonnet::filelocation('',$url));
  581:    }
  582: # ------------------------------------------------------------ Assemble windows
  583:    
  584:    my $idx=-1;
  585:    $importdetail='&'.$importdetail;
  586:    $importdetail=~s/^\&+/\&/;
  587:    my $importwindow=
  588:        '<option value="-1"> ---- '.&mt('Import and Paste Area').' ---- </option>'.
  589:      join("\n",map {
  590:        $idx++;
  591:        if ($_) { 
  592:           my ($name,$url)=split(/\=/,$_);
  593:           unless ($name) { $name=(split(/\//,$url))[-1]; }
  594:           unless ($name) { $name='EMPTY'; }
  595:           '<option value="'.$idx.'">'.&unescape($name).
  596:                                     '</option>';
  597:       }
  598:    } split(/\&/,$importdetail));
  599: 
  600:    $idx=0;
  601:    $targetdetail='';
  602:    my $targetwindow=       
  603:        '<option value="0"> ------- '.&mt('Target Edit Map').' ------- </option>'.
  604:      join("\n",map { 
  605:        my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$_]);
  606:        unless ($name) {  $name=(split(/\//,$url))[-1]; }
  607:        unless ($name) { $name='EMPTY'; }
  608:        $targetdetail.='&'.&escape($name).'='.
  609: 	                  &escape($url);
  610:        $idx++;
  611:        $name=~s/\&colon;/\:/g;
  612:        '<option value="'.$idx.'">'.$name.'</option>';
  613:    } @LONCAPA::map::order);
  614: 
  615: # ----------------------------------------------------- Start simple RAT screen
  616:    my $editscript=&editscript('simple');
  617: 
  618:    my %lt=&Apache::lonlocal::texthash(
  619: 				      'sa' => 'Save',
  620: 				      'nt' => 'New Title',
  621: 				      'se' => 'Search',
  622: 				      'im' => 'Import',
  623:                                       'bk' => 'Import Bookmarks',
  624: 				      'vi' => 'View',
  625: 				      'lm' => 'Load Map',
  626: 				      'ds' => 'Discard Selected',
  627: 				      'ca' => 'Clear All',
  628: 				      'ta' => 'Temporary Assembly Workspace',
  629: 				      'rv' => 'Revert to Last Saved',
  630:                                       'sa' => 'Save',
  631:                                       'mu' => 'Move Up',
  632:                                       'md' => 'Move Down',
  633:                                       're' => 'Rename',
  634:                                       'as' => 'after selected',
  635:                                       'cs' => 'Cut selected',
  636:                                       'ps' => 'Copy selected',
  637:                                       'pas' => 'Paste after selected',
  638:                                       'reco' => 'Recover Deleted'
  639: 				      );
  640:    my $js=<<ENDJS;
  641: <script type="text/javascript">
  642: 
  643:    $editscript
  644: 
  645:    function openview(entry) {
  646:        var url=unescape((entry.split('='))[1]);
  647:        var parts=new Array;
  648:        parts=url.split('&colon;');
  649:        url=parts.join(':');
  650:        if (url) { open(url,'cat'); }
  651:    }
  652: 
  653:    function viewtarget() {
  654:        openview((document.forms.simpleedit.targetdetail.value.split('&'))
  655:                 [document.forms.simpleedit.target.selectedIndex]);
  656:    }
  657: 
  658:    function viewimport() {
  659:        openview((document.forms.simpleedit.curimpdetail.value.split('&'))
  660:                 [document.forms.simpleedit.importsel.selectedIndex]);
  661:    }
  662: 
  663:    function renametarget() {
  664:        var selidx=document.forms.simpleedit.target.selectedIndex;
  665:        var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
  666:                 [selidx];
  667:        var oldname=unescape((entry.split('='))[0]);
  668:        var nameparts=oldname.split('&colon;');
  669:        oldname=unescape(nameparts.join(':'));
  670:        nameparts=oldname.split('&#34;');
  671:        oldname=unescape(nameparts.join('"'));
  672:        nameparts=oldname.split('&#39;');
  673:        oldname=unescape(nameparts.join("'"));
  674:        newtitle=prompt('$lt{'nt'}',oldname);
  675:        if (newtitle) {
  676:            document.forms.simpleedit.renameres.value=1;
  677:            document.forms.simpleedit.renameidx.value=selidx;
  678:            document.forms.simpleedit.renametitle.value=newtitle;
  679: 	   document.forms.simpleedit.submit();
  680:        }
  681:    }
  682: 
  683: </script>
  684: ENDJS
  685: 
  686:     my $start_page = &Apache::loncommon::start_page(undef,$js).
  687:         &Apache::loncommon::help_open_menu('Sequence_Simple_Editor_Creation',
  688: 					   'Sequence_Simple_Editor_Creation',
  689: 					   6,'RAT');    
  690:     my $end_page = &Apache::loncommon::end_page();
  691: 
  692:     $r->print(<<ENDSMPHEAD);
  693: $start_page
  694: $buttons
  695: <font color=red>$errtext</font>
  696: <form name=simpleedit method=post>
  697: <input type=hidden name=forcesmp value=1>
  698: <input type=hidden name=renameres value=0>
  699: <input type=hidden name=renametitle value=''>
  700: <input type=hidden name=renameidx value=0>
  701: <table>
  702:     <tr><th width="40%">$lt{'ta'}</th>
  703: <th>&nbsp;</th>
  704: <th width="40%">File: $url</th></tr>
  705: <tr><td bgcolor="#FFFFCC">
  706: <input type=button onClick="javascript:groupsearch()" value="$lt{'se'}">
  707: <input type=button onClick="javascript:groupimport();" value="$lt{'im'}">
  708: $lt{'as'}
  709: <hr>
  710: <input type=text size=20 name=importmap>
  711: <input type=button 
  712: onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
  713: value="Select Map"><input type=submit name=loadmap value="$lt{'lm'}"><hr>
  714: <input type=submit name="discard" value="$lt{'ds'}">
  715: <input type=submit name="clear" value="$lt{'ca'}">
  716: <input type=button onClick="javascript:viewimport()" value="$lt{'vi'}">
  717: 
  718:     </td><td>&nbsp;</td><td bgcolor="#FFFFCC">
  719: 
  720: <input type=button onClick=
  721: "javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}">
  722: <input type=button onClick=
  723: "javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}">
  724: <input type=button onClick=
  725: "javascript:impfortarget.value=1;groupopen(0,1,1);" value="$lt{'bk'}">
  726: <input type=button onClick=
  727: "javascript:impfortarget.value=1;groupopen('$url',1,0);" value="$lt{'reco'}">
  728: $lt{'as'}
  729: <hr>
  730: <input type=submit name="moveup" value="$lt{'mu'}">
  731: <input type=submit name="movedown" value="$lt{'md'}">
  732: <input type=button onClick="javascript:renametarget()" value="$lt{'re'}">
  733: <hr>$targetmsg
  734: <input type=submit name="revert" value="$lt{'rv'}">
  735: <input type=submit name="save" value="$lt{'sa'}">
  736: <input type=button onClick="javascript:viewtarget()" value="$lt{'vi'}">
  737: </td></tr>
  738: 
  739: <tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
  740: $importwindow
  741: </select>
  742: </td>
  743: <td bgcolor="#FFFFAA" align="center">
  744: $lt{'cs'}<br>
  745: <input type=submit name=cut value='<<<'><p>
  746: <hr>
  747: $lt{'ps'}<br>
  748: <input type=submit name=copy value='<--'><p>
  749: <hr>
  750: $lt{'pas'}<br>
  751: <input type=submit name=paste value='-->'>
  752: </td>
  753: <td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
  754: $targetwindow
  755: </select>
  756: </table>
  757: <input type=hidden name=importdetail value="">
  758: <input type=hidden name=curimpdetail value="$importdetail">
  759: <input type=hidden name=targetdetail value="$targetdetail">
  760: <input type=hidden name=impfortarget value="0">
  761: </form>
  762: $end_page
  763: ENDSMPHEAD
  764: }
  765: 
  766: # ----------------------------------------------------------------- No such dir
  767: sub nodir {
  768:    my ($r,$dir)=@_;
  769:    $dir=~s{^/home/\w+/public_html}{};
  770:    $r->print(&Apache::loncommon::start_page(undef,undef,
  771: 					    {'only_body' => 1,
  772: 					     'bgcolor'   => '#FFFFFF',}).
  773: 	     "<h1>No such directory: $dir</h1>".
  774: 	     &Apache::loncommon::end_page());
  775: }
  776: 
  777: # ---------------------------------------------------------------- View Handler
  778: 
  779: sub viewmap {
  780:     my ($r,$url,$adv,$errtext)=@_;
  781:     $r->print(
  782: 	      &Apache::loncommon::start_page('Edit Content of a Map').
  783: 	      &Apache::loncommon::help_open_menu('','',6,'RAT').
  784: 	      &buttons($adv));
  785:     if ($errtext) {
  786: 	$r->print($errtext.'<hr />');
  787:     }
  788:     my $idx=0;
  789:     $r->print('<h1>'.$url.'</h1>');
  790:     if ($adv) {
  791: 	$r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />');
  792:     }
  793:     $r->print( '<table border="0" cellspacing="2" cellpadding="4">'.
  794:                '<tr bgcolor="#DDDDDD"><th>'.&mt('Type').'</th>'.
  795:                '<th>'.&mt('Title in map').'</th>'.
  796:                '<th>'.&mt('Filename of resource').'</th>'.
  797:                '<th>'.&mt('Link to published resource').'</th>'.
  798:                '<th>'.&mt('Link to resource in Construction Space').'</th>'.
  799:                '</tr>');
  800:     my @backgroundColors = ("#FFFFFF", "#F6F6F6");
  801:     foreach (&LONCAPA::map::attemptread(&Apache::lonnet::filelocation('',$url))) {
  802: 	if (defined($_)) {
  803:             $idx++;
  804: 	    my ($title,$url,$cond)=split(/\:/,$_);
  805: 	    if ($cond eq 'cond') { next; }
  806:             $title=~s/\&colon\;/\:/g;
  807:             $url=~s/\&colon\;/\:/g;
  808:             unless ($title) { $title=(split(/\//,$url))[-1] };
  809:             unless ($title) { $title='<i>'.&mt('Empty').'</i>'; }
  810:             my $resurl = &Apache::lonratsrv::qtescape($url);
  811:             my $resfilepath = $Apache::lonnet::perlvar{'lonDocRoot'}.$resurl;
  812:             my $filename; 
  813:             if ($resurl =~ m#/([^/]+)$#) {
  814:                 $filename = $1;
  815:             }
  816:             my $cstrurl = $resurl;
  817:             $cstrurl =~ s#^/res/[^/]+/([^/]+)/#/priv/$1/#;
  818:             my $bgcol = $idx%2; 
  819:             $r->print('<tr bgcolor='.$backgroundColors[$bgcol].'><td>'.
  820:                       '<img src="'.&Apache::loncommon::icon($resfilepath).
  821:                       '" /></td><td>'.&Apache::lonratsrv::qtescape($title).
  822:                       '</td><td>'.$filename.'</td><td>');
  823:             if ($url) {
  824: 		$r->print('<a href="'.$resurl.'">'.&mt('Resource space').'</a>');
  825:             }
  826:             $r->print('</td><td>');
  827:             if ($url) {
  828:                $r->print('<a href="'.$cstrurl.'">'.
  829:                          &mt('Construction space').'</a>');
  830:             }
  831:             $r->print('</td></tr>'."\n");
  832:         }
  833:     }
  834:     $r->print('</table>');
  835:     $r->print(&Apache::loncommon::end_page());
  836: }
  837: 
  838: # ================================================================ Main Handler
  839: 
  840: sub handler {
  841:   my $r=shift;
  842:   &Apache::loncommon::content_type($r,'text/html');
  843:   $r->send_http_header;
  844: 
  845:   return OK if $r->header_only;
  846:   my $target = $env{'form.grade_target'};
  847:   if ($target eq 'meta') {
  848:       &Apache::loncommon::content_type($r,'text/html');
  849:       $r->send_http_header;
  850:       return OK;
  851:   }
  852:   
  853:   my $url=$r->uri;
  854:   my $fn=&Apache::lonnet::filelocation('',$url);
  855: 
  856:   my ($dir)=($fn=~/^(.+)\/[^\/]+$/);
  857:   unless (-e $dir) {
  858:       &nodir($r,$dir);
  859:       return OK;
  860:   }
  861: 
  862: # ------------------------------------------- Determine which tools can be used
  863:   my $adv=0;
  864: 
  865:   unless ($env{'form.forcesmp'}) {
  866:      if ($env{'form.forceadv'}) {
  867:         $adv=1;
  868:      } elsif (my $fh=Apache::File->new($fn)) {
  869: 	 my $allmap=join('',<$fh>);
  870:          $adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is);
  871:      }
  872:   }
  873: 
  874:   my $errtext='';
  875:   my $fatal=0;
  876: 
  877: # -------------------------------------------------------------------- Load map
  878:   ($errtext,$fatal)=&LONCAPA::map::mapread($fn,$errtext);
  879: 
  880:   if ($fatal==1) { $adv=1; }
  881: 
  882: # ----------------------------------- adv==1 now means "graphical MUST be used"
  883: 
  884:   if ($env{'form.forceadv'}) {
  885:       &ratedt($r,$url);
  886:   } elsif ($env{'form.forcesmp'}) {
  887:       &smpedt($r,$url,$errtext);
  888:   } else {
  889:       &viewmap($r,$url,$adv,$errtext);
  890:   }
  891:   return OK;
  892: }
  893: 
  894: 1;
  895: __END__
  896: 
  897: 
  898: 
  899: 
  900: 
  901: 
  902: 

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