File:  [LON-CAPA] / loncom / interface / lonmenu.pm
Revision 1.161: download - view: text, annotated - select for diffs
Tue Sep 20 07:52:03 2005 UTC (18 years, 8 months ago) by albertel
Branches: MAIN
CVS tags: version_2_0_X, version_2_0_2, HEAD
- bringing tasks more generally into Lon-CAPA

    1: # The LearningOnline Network with CAPA
    2: # Routines to control the menu
    3: #
    4: # $Id: lonmenu.pm,v 1.161 2005/09/20 07:52:03 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: # There are two parameters controlling the action of this module:
   30: #
   31: # browser.interface - if this is 'textual', it overrides the second parameter
   32: # and goes to screen reader PDA mode
   33: #
   34: # environment.remote - if this is 'on', the routines controll the remote
   35: # control, otherwise they render the main window controls; ignored it
   36: # browser.interface is 'textual'
   37: #
   38: 
   39: package Apache::lonmenu;
   40: 
   41: use strict;
   42: use Apache::lonnet;
   43: use Apache::Constants qw(:common);
   44: use Apache::lonhtmlcommon();
   45: use Apache::loncommon();
   46: use Apache::lonenc();
   47: use Apache::lonlocal;
   48: 
   49: use vars qw(@desklines $readdesk);
   50: 
   51: 
   52: my @inlineremote;
   53: my $font;
   54: my $tabbg;
   55: my $pgbg;
   56: 
   57: # ================================================================ Little texts
   58: 
   59: sub initlittle {
   60:     return &Apache::lonlocal::texthash('ret' => 'Return to Last Location',
   61: 				       'nav' => 'Navigate Contents',
   62: 				       'main' => 'Main Menu',
   63:                                        'roles' => ($env{'user.adv'}?
   64:                                                     'Roles':'Courses'),
   65:                                        'docs' => 'Course Documents',
   66:                                        'exit' => 'Exit',
   67: 				       'launch' => 'Launch Remote Control');
   68: }
   69: 
   70: # ============================= This gets called at the top of the body section
   71: 
   72: sub menubuttons {
   73:     my $forcereg=shift;
   74:     my $target  =shift;
   75:     my $registration=shift;
   76:     my $titletable=shift;
   77:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
   78: 					    ['inhibitmenu']);
   79:     if (($env{'form.inhibitmenu'} eq 'yes') ||
   80:         ($ENV{'REQUEST_URI'} eq '/adm/logout')) { return ''; }
   81: 
   82:     my $navmaps='';
   83:     my $reloadlink='';
   84:     my $docs='';
   85:     my $escurl=&Apache::lonnet::escape(&Apache::lonenc::check_encrypt($env{'request.noversionuri'}));
   86:     my $escsymb=&Apache::lonnet::escape(&Apache::lonenc::check_encrypt($env{'request.symb'}));
   87:     my $face= 'face="Arial,Helvetica,sans-serif"';
   88:     if ($env{'request.state'} eq 'construct') {
   89:         if (($env{'request.noversionuri'} eq '') || (!defined($env{'request.noversionuri'}))) {
   90:             my $returnurl = $env{'request.filename'};
   91:             $returnurl =~ s:^/home/([^/]+)/public_html/(.*)$:/priv/$1/$2:;
   92:             $escurl = &Apache::lonnet::escape($returnurl);
   93:         }
   94:     }
   95:     if ($env{'browser.interface'} eq 'textual') {
   96: # Textual display only
   97: 	my %lt=&initlittle();
   98:         $pgbg='#FFFFFF';
   99:         $tabbg='#FFFFFF';
  100: 	$font='#000000';
  101:         if ($env{'request.course.id'}) {
  102: 	    $navmaps=(<<ENDNAV);
  103: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top">$lt{'nav'}</a>
  104: ENDNAV
  105:             if (($env{'request.noversionuri'}=~/^\/adm\//) &&
  106:          ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
  107:          ($env{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
  108:                 my $escreload=&Apache::lonnet::escape('return:');
  109:                 $reloadlink=(<<ENDRELOAD);
  110: <a href="/adm/flip?postdata=$escreload" target="_top"><font $face color="$font">$lt{'ret'}</font></a>
  111: ENDRELOAD
  112:             }
  113: 	    if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
  114:                $docs=(<<ENDDOCS);
  115: <a href="/adm/coursedocs" target="_top"><font $face color="$font">$lt{'docs'}</font></a>
  116: ENDDOCS
  117:             }
  118: 	}
  119:         my $form=&serverform();
  120:         my $utility=&utilityfunctions();
  121: 	my $output=(<<ENDMAINMENU);
  122: <script type="text/javascript">
  123: // BEGIN LON-CAPA Internal
  124: $utility
  125: </script>
  126: <a href="/adm/menu" target="_top">$lt{'main'}</a>
  127: $reloadlink $navmaps $docs
  128: <a href="/adm/roles" target="_top"><font $face color="$font">$lt{'roles'}</font></a>
  129: <a href="/adm/logout" target="_top"><font $face color="$font">$lt{'exit'}</font></a>
  130: <br />
  131: <script type="text/javascript">
  132: // END LON-CAPA Internal
  133: </script>
  134: $form
  135: ENDMAINMENU
  136:         if ($registration) { $output.=&innerregister($forcereg,$target); }
  137: 	return $output."<hr />";
  138:     } elsif ($env{'environment.remote'} eq 'off') {
  139: # Remote Control is switched off
  140: # figure out colors
  141: 	my %lt=&initlittle();
  142: 	my $function='student';
  143:         if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
  144: 	    $function='coordinator';
  145:         }
  146: 	if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
  147:             $function='admin';
  148:         }
  149:         if (($env{'request.role'}=~/^(au|ca)/) ||
  150:             ($env{'request.noversionuri'}=~/^(\/priv|\~)/)) {
  151:             $function='author';
  152:         }
  153:         my $domain=&Apache::loncommon::determinedomain();
  154:         $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
  155:         $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
  156:         $font=&Apache::loncommon::designparm($function.'.font',$domain);
  157:         my $link=&Apache::loncommon::designparm($function.'.link',$domain);
  158:         my $alink=&Apache::loncommon::designparm($function.'.alink',$domain);
  159:         my $vlink=&Apache::loncommon::designparm($function.'.vlink',$domain);
  160:         my $sidebg=&Apache::loncommon::designparm($function.'.sidebg',$domain);
  161: 	if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
  162: 	    my $logo=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/minilogo.gif");
  163: 	    return (<<ENDINLINEMENU);
  164: <font face="Arial,Helvetica,sans-serif">
  165:    <table bgcolor="$pgbg" width="100%" border="0" cellpadding="1" cellspacing="1">
  166:     <tr>
  167:       <td bgcolor="$tabbg">
  168:         <a href="/adm/logout" target="_top"><font color="$font">$lt{'exit'}</font></a>
  169:      </td>
  170:      <td align="right" bgcolor="$tabbg">
  171:        <img align="right" src="$logo" alt="Logo" />
  172:        <b>LON-CAPA</b>&nbsp;
  173:      </td>
  174:    </tr>
  175:   </table>
  176: </font>
  177: ENDINLINEMENU
  178:         }
  179: # Do we have a NAV link?
  180:         if ($env{'request.course.id'}) {
  181: 	    my $link='/adm/navmaps?postdata='.$escurl.'&amp;postsymb='.
  182: 		$escsymb;
  183: 	    if ($env{'environment.remotenavmap'} eq 'on') {
  184: 		$link="javascript:gonav('".$link."')";
  185: 	    }
  186: 	    $navmaps=(<<ENDNAV);
  187: <td bgcolor="$tabbg">
  188: <a href="$link" target="_top"><font $face color="$font">$lt{'nav'}</font></a></td>
  189: ENDNAV
  190: 	    if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
  191: 		$docs=(<<ENDDOCS);
  192: <td bgcolor="$tabbg">
  193: <a href="/adm/coursedocs" target="_top"><font $face color="$font">$lt{'docs'}</font></a></td>
  194: ENDDOCS
  195:             }
  196: 	    if (
  197: 		($env{'request.noversionuri'}=~m[^/(res|public)/] &&
  198: 		 $env{'request.symb'} eq '')
  199: 		||
  200: 		(($env{'request.noversionuri'}=~/^\/adm\//) &&
  201: 		 ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
  202: 		 ($env{'request.noversionuri'}!~
  203: 		        m[^/adm/.*/(smppg|bulletinboard|aboutme)($|\?)])
  204: 		  )
  205: 		 ) {
  206:                 my $escreload=&Apache::lonnet::escape('return:');
  207:                 $reloadlink=(<<ENDRELOAD);
  208: <td bgcolor="$tabbg">
  209: <a href="/adm/flip?postdata=$escreload" target="_top"><font $face color="$font">$lt{'ret'}</font></a></td>
  210: ENDRELOAD
  211:             }
  212:         }
  213:         my $reg='';
  214:         if ($registration) {
  215:            $reg=&innerregister($forcereg,$target,$titletable);
  216:         }
  217:         my $form=&serverform();
  218: 	my $utility=&utilityfunctions();
  219: 	my $logo=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/minilogo.gif");
  220: 
  221: 	return (<<ENDINLINEMENU);
  222: <script type="text/javascript">
  223: // BEGIN LON-CAPA Internal
  224: // <![CDATA[
  225: $utility
  226: // ]]>
  227: </script>
  228: <table bgcolor="$pgbg" width="100%" border="0" cellpadding="1" cellspacing="1">
  229: <tr>
  230: <td bgcolor="$tabbg">
  231: <a href="/adm/menu" target="_top"><font $face color="$font">$lt{'main'}</font></a>
  232: </td>
  233: $reloadlink
  234: $navmaps
  235: $docs
  236: <td bgcolor="$tabbg">
  237: <a href="/adm/remote?action=launch&amp;url=$escurl" target="_top">
  238: <font $face color="$font">$lt{'launch'}</font></a></td>
  239: <td bgcolor="$tabbg">
  240: <a href="/adm/roles" target="_top"><font $face color="$font">$lt{'roles'}</font></a>
  241: </td>
  242: <td bgcolor="$tabbg">
  243: <a href="/adm/logout" target="_top"><font $face color="$font">$lt{'exit'}</font></a>
  244: </td>
  245: <td bgcolor="$tabbg">
  246: <img align="right" src="$logo" alt="Logo" />
  247: <b>LON-CAPA</b></td>
  248: $form
  249: </tr>
  250: </table>
  251: <script type="text/javascript">
  252: // END LON-CAPA Internal
  253: </script>
  254: $reg
  255: ENDINLINEMENU
  256:     } else {
  257: 	return '';
  258:     }
  259: }
  260: 
  261: # ====================================== This gets called in the header section
  262: 
  263: sub registerurl {
  264:     my $forcereg=shift;
  265:     my $target = shift;
  266:     my $result = '';
  267:     if ($env{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
  268:     my $force_title='';
  269:     if ($env{'request.state'} eq 'construct') {
  270: 	$force_title=&Apache::lonxml::display_title();
  271:     }
  272:     if ($target eq 'edit') {
  273:         $result .="<script type=\"text/javascript\">\n".
  274:             "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
  275:             &Apache::loncommon::browser_and_searcher_javascript().
  276:                 "\n</script>\n";
  277:     }
  278:     if (($env{'browser.interface'} eq 'textual') ||
  279:         ($env{'environment.remote'} eq 'off') ||
  280:         ((($env{'request.publicaccess'}) || 
  281:          (!&Apache::lonnet::is_on_map(
  282: 	   &Apache::lonnet::unescape($env{'request.noversionuri'})))) &&
  283:         (!$forcereg))) {
  284:  	return $result.
  285:           '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>'.$force_title;
  286:     }
  287: # Graphical display after login only
  288:     if ($Apache::lonxml::registered && !$forcereg) { return ''; }
  289:     if ($target ne 'edit') {
  290: 	$result.=&innerregister($forcereg,$target);
  291:     }
  292:     return $result.$force_title;
  293: }
  294: 
  295: # =========== This gets called in order to register a URL, both with the Remote
  296: # =========== and in the body of the document
  297: 
  298: sub innerregister {
  299:     my $forcereg=shift;
  300:     my $target = shift;
  301:     my $titletable = shift;
  302:     my $result = '';
  303:     my ($uname,$thisdisfn);
  304:     my $const_space = ($env{'request.state'} eq 'construct');
  305:     my $is_const_dir = 0;
  306: 
  307:     if ($env{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
  308: 
  309:     $Apache::lonxml::registered=1;
  310: 
  311:     my $textinter=($env{'browser.interface'} eq 'textual');
  312:     my $noremote=($env{'environment.remote'} eq 'off');
  313:     
  314:     my $textual=($textinter || $noremote);
  315: 
  316:     @inlineremote=();
  317:     undef @inlineremote;
  318: 
  319:     my $reopen=&Apache::lonmenu::reopenmenu();
  320: 
  321:     my $newmail='';
  322:     if ($noremote) {
  323: 	$newmail='<table bgcolor="'.$pgbg.'" border="0" cellspacing="1" cellpadding="1" width="100%"><tr><td bgcolor="'.$tabbg.'"><font face="Arial,Helvetica,sans-serif">';
  324:     }
  325:     if (($textual) && ($env{'request.symb'}) && ($env{'request.course.id'})) {
  326: 	my ($mapurl,$rid,$resurl)=
  327: 	    &Apache::lonnet::decode_symb(&Apache::lonnet::symbread());
  328:         $newmail.=$env{'course.'.$env{'request.course.id'}.'.description'};
  329:         my $maptitle=&Apache::lonnet::gettitle($mapurl);
  330: 	my $restitle=&Apache::lonnet::gettitle(&Apache::lonnet::symbread());
  331:         if ($maptitle && $maptitle ne 'default.sequence') {
  332: 	    $newmail.=', '.$maptitle;
  333:         }
  334:         if ($restitle) {
  335: 	    $newmail.=': '.$restitle;
  336:         }
  337:         $newmail.='&nbsp;&nbsp;&nbsp;';
  338:     }
  339:     if (&Apache::lonmsg::newmail()) { 
  340:        $newmail=($textual?
  341:  '<b><a href="/adm/communicate" target="_top">You have new messages</a></b><br />':
  342:                           'swmenu.setstatus("you have","messages");');
  343:     }
  344:     if ($env{'request.state'} eq 'construct') {
  345:         $newmail = $titletable;
  346:     } else {
  347: 	if ($noremote) {
  348: 	    $newmail.='</font></td></tr></table>';
  349: 	}
  350:     }
  351:     my $timesync=($textual?'':'swmenu.syncclock(1000*'.time.');');
  352:     my $tablestart=($noremote?'<font face="Arial,Helvetica,sans-serif"><table bgcolor="'.$pgbg.'" border="0" cellspacing="1" cellpadding="1" width="100%">':'').($textinter?'<br /><a href="#content">'.&mt('Skip to Content').'</a><br />':'');
  353:     my $tableend=($noremote?'</table></font>':'').($textinter?'<a name="content" />':'');
  354: # =============================================================================
  355: # ============================ This is for URLs that actually can be registered
  356:     if (($env{'request.noversionuri'}!~m|^/(res/)*adm/|) || ($forcereg)) {
  357: # -- This applies to homework problems for users with grading privileges
  358: 	my $crs='/'.$env{'request.course.id'};
  359: 	if ($env{'request.course.sec'}) {
  360: 	    $crs.='_'.$env{'request.course.sec'};
  361: 	}
  362: 	$crs=~s/\_/\//g;
  363: 
  364:         my $hwkadd='';
  365:         if ($env{'request.symb'} ne '' &&
  366: 	    $env{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form|task)$/) {
  367: 	    if (&Apache::lonnet::allowed('mgr',$crs)) {
  368: 		$hwkadd.=&switch('','',7,2,'pgrd.gif','problem[_1]','grades[_3]',
  369:                        "gocmd('/adm/grades','gradingmenu')",
  370:                        'Modify user grades for this assessment resource');
  371:             } elsif (&Apache::lonnet::allowed('vgr',$crs)) {
  372: 		$hwkadd.=&switch('','',7,2,'subm.gif','view sub-[_1]','missions[_1]',
  373:                        "gocmd('/adm/grades','submission')",
  374: 		       'View user submissions for this assessment resource');
  375:             }
  376: 	}
  377: 	if ($env{'request.symb'} ne '' &&
  378: 	    &Apache::lonnet::allowed('opa',$crs)) {
  379: 	    $hwkadd.=&switch('','',7,3,'pparm.gif','problem[_2]','parms[_2]',
  380: 			     "gocmd('/adm/parmset','set')",
  381: 			     'Modify deadlines, etc, for this resource');
  382: 	}
  383: # -- End Homework
  384:         ###
  385:         ### Determine whether or not to display the 'cstr' button for this
  386:         ### resource
  387:         ###
  388:         my $editbutton = '';
  389:         if ($env{'user.author'}) {
  390:             if ($env{'request.role'}=~/^(ca|au)/) {
  391:                 # Set defaults for authors
  392:                 my ($top,$bottom) = ('con-','struct');
  393:                 my $action = "go('/priv/".$env{'user.name'}."');";
  394:                 my $cadom  = $env{'request.role.domain'};
  395:                 my $caname = $env{'user.name'};
  396:                 my $desc = "Enter my resource construction space";
  397:                 # Set defaults for co-authors
  398:                 if ($env{'request.role'} =~ /^ca/) { 
  399:                     ($cadom,$caname)=($env{'request.role'}=~/(\w+)\/(\w+)$/);
  400:                     ($top,$bottom) = ('co con-','struct');
  401:                     $action = "go('/priv/".$caname."');";
  402:                     $desc = "Enter construction space as co-author";
  403:                 }
  404:                 # Check that we are on the correct machine
  405:                 my $home = &Apache::lonnet::homeserver($caname,$cadom);
  406: 		my $allowed=0;
  407: 		my @ids=&Apache::lonnet::current_machine_ids();
  408: 		foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
  409: 		if (!$allowed) {
  410: 		    $editbutton=&switch('','',6,1,$top,,$bottom,$action,$desc);
  411:                 }
  412:             }
  413:             ##
  414:             ## Determine if user can edit url.
  415:             ##
  416:             my $cfile='';
  417:             my $cfuname='';
  418:             my $cfudom='';
  419:             if ($env{'request.filename'}) {
  420:                 my $file=&Apache::lonnet::declutter($env{'request.filename'});
  421:                 $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
  422:                 # Check that the user has permission to edit this resource
  423:                 ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
  424:                 if (defined($cfudom)) {
  425: 		    my $home=&Apache::lonnet::homeserver($cfuname,$cfudom);
  426: 		    my $allowed=0;
  427: 		    my @ids=&Apache::lonnet::current_machine_ids();
  428: 		    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
  429: 		    if ($allowed) {
  430:                         $cfile=$file;
  431:                     }
  432:                 }
  433:             }        
  434:             # Finally, turn the button on or off
  435:             if ($cfile && !$const_space) {
  436:                 $editbutton=&switch
  437:                     ('','',6,1,'cstr.gif','edit[_1]','resource[_2]',
  438:                      "go('".$cfile."');","Edit this resource");
  439:             } elsif ($editbutton eq '') {
  440:                 $editbutton=&switch('','',6,1,'port.gif',
  441: 				    'port-[_1]','folio[_1]',
  442: 				    "go('/adm/portfolio');",
  443: 				    "Enter my portfolio space");
  444:             }
  445:         }
  446:         ###
  447:         ###
  448: # Prepare the rest of the buttons
  449:         my $menuitems;
  450:         if ($const_space) {
  451: 	    my ($uname,$thisdisfn) =
  452: 		($env{'request.filename'}=~m|^/home/([^/]+)/public_html/(.*)|);
  453:             my $currdir = '/priv/'.$uname.'/'.$thisdisfn;
  454:             if ($currdir =~ m-/$-) {
  455:                 $is_const_dir = 1;
  456:             } else {
  457:                 $currdir =~ s#[^/]+$##;
  458:                 $menuitems=(<<ENDMENUITEMS);
  459: s&6&1&list.gif&list[_1]&dir[_1]&golist('$currdir')&List current directory
  460: s&6&2&rtrv.gif&retrieve[_1]&version[_1]&gocstr('/adm/retrieve','/~$uname/$thisdisfn')&Retrieve old version
  461: s&6&3&pub.gif&publish[_1]&resource[_1]&gocstr('/adm/publish','/~$uname/$thisdisfn')&Publish this resource
  462: s&7&1&del.gif&delete[_1]&resource[_2]&gocstr('/adm/cfile?action=delete','/~$uname/$thisdisfn')&Delete this resource
  463: s&7&2&prt.gif&prepare[_1]&printout[_1]&gocstr('/adm/printout','/~$uname/$thisdisfn')&Prepare a printable document
  464: ENDMENUITEMS
  465:             }
  466:         } elsif (defined($env{'request.course.id'}) && 
  467: 		 $env{'request.symb'} ne '') {
  468: 	    $menuitems=(<<ENDMENUITEMS);
  469: c&3&1
  470: s&2&1&back.gif&backward[_1]&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
  471: s&2&3&forw.gif&forward[_1]&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
  472: c&6&3
  473: c&8&1
  474: c&8&2
  475: s&8&3&prt.gif&prepare[_1]&printout[_1]&gopost('/adm/printout',currentURL)&Prepare a printable document
  476: s&9&1&sbkm.gif&set[_1]&bookmark[_2]&set_bookmark()&Set a bookmark for this resource&2
  477: s&9&3&anot.gif&anno-[_1]&tations[_1]&annotate()&Make notes and annotations about this resource&2
  478: ENDMENUITEMS
  479:             unless ($env{'request.noversionuri'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme)(\?|$)/) {
  480: 	        $menuitems.=(<<ENDREALRES);
  481: s&6&3&catalog.gif&catalog[_1]&info[_1]&catalog_info()&Show catalog information
  482: s&8&1&eval.gif&evaluate[_1]&this[_1]&gopost('/adm/evaluate',currentURL,1)&Provide my evaluation of this resource
  483: s&8&2&fdbk.gif&feedback[_1]&discuss[_1]&gopost('/adm/feedback',currentURL,1)&Provide feedback messages or contribute to the course discussion about this resource
  484: ENDREALRES
  485: 	    }
  486:         }
  487:         my $buttons='';
  488:         foreach (split(/\n/,$menuitems)) {
  489: 	    my ($command,@rest)=split(/\&/,$_);
  490:             if ($command eq 's') {
  491: 		$buttons.=&switch('','',@rest);
  492:             } else {
  493:                 $buttons.=&clear(@rest);
  494:             }
  495:         }
  496: 
  497:         if ($textual) {
  498: 	    my $addremote=0;
  499: 	    foreach (@inlineremote) { if ($_ ne '') { $addremote=1; } }
  500: 	    my $inlinebuttons='';
  501: 	    if ($addremote) {
  502: # Registered, textual output
  503: 
  504: 		if ($env{'browser.interface'} eq 'textual') {
  505: 		    $inlinebuttons=
  506:                         join('',map { (defined($_)?$_:'') } @inlineremote);
  507: 		} else {
  508: 		    $inlinebuttons=(<<ENDINLINE);
  509: <tr><td>$inlineremote[21]</td><td>&nbsp;</td><td>$inlineremote[23]</td></tr>
  510: <tr><td>$inlineremote[61]</td><td>$inlineremote[62]</td><td>$inlineremote[63]</td></tr>
  511: <tr><td>$inlineremote[71]</td><td>$inlineremote[72]</td><td>$inlineremote[73]</td></tr>
  512: <tr><td>$inlineremote[81]</td><td>$inlineremote[82]</td><td>$inlineremote[83]</td></tr>
  513: <tr><td>$inlineremote[91]</td><td>$inlineremote[92]</td><td>$inlineremote[93]</td></tr>
  514: ENDINLINE
  515:                 }
  516: 	    }
  517: 	    $result =(<<ENDREGTEXT);
  518: <script type="text/javascript">
  519: // BEGIN LON-CAPA Internal
  520: </script>
  521: $timesync
  522: $newmail
  523: $tablestart
  524: $inlinebuttons
  525: $tableend
  526: <script type="text/javascript">
  527: // END LON-CAPA Internal
  528: </script>
  529: 
  530: ENDREGTEXT
  531: # Registered, graphical output
  532:         } else {
  533: 	    my $requri=&Apache::lonnet::clutter(&Apache::lonnet::fixversion((split(/\?/,$env{'request.noversionuri'}))[0]));
  534: 	    $requri=&Apache::lonenc::check_encrypt(&Apache::lonnet::unescape($requri));
  535: 	    my $cursymb=&Apache::lonenc::check_encrypt($env{'request.symb'});
  536: 	    my $navstatus=&get_nav_status();
  537: 	    my $clearcstr;
  538: 
  539: 	    if ($env{'user.adv'}) { $clearcstr='clearbut(6,1)'; }
  540: 	    $result = (<<ENDREGTHIS);
  541:      
  542: <script type="text/javascript">
  543: // BEGIN LON-CAPA Internal
  544: var swmenu=null;
  545: 
  546:     function LONCAPAreg() {
  547: 	  swmenu=$reopen;
  548:           swmenu.clearTimeout(swmenu.menucltim);
  549:           $timesync
  550:           $newmail
  551:           $buttons
  552: 	  swmenu.currentURL="$requri";
  553:           swmenu.reloadURL=swmenu.currentURL+window.location.search;
  554:           swmenu.currentSymb="$cursymb";
  555:           swmenu.reloadSymb="$cursymb";
  556:           swmenu.currentStale=0;
  557: 	  $navstatus
  558:           $hwkadd
  559:           $editbutton
  560:     }
  561: 
  562:     function LONCAPAstale() {
  563: 	  swmenu=$reopen
  564:           swmenu.currentStale=1;
  565:           if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) { 
  566:              swmenu.switchbutton
  567:              (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
  568: 	  }
  569:           swmenu.clearbut(7,2);
  570:           swmenu.clearbut(7,3);
  571:           swmenu.menucltim=swmenu.setTimeout(
  572:  'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
  573:  'clearbut(9,1);clearbut(9,3);clearbut(6,3);$clearcstr',
  574: 			  2000);
  575:       }
  576: 
  577: // END LON-CAPA Internal 
  578: </script>
  579: ENDREGTHIS
  580:         }
  581: # =============================================================================
  582:     } else {
  583: # ========================================== This can or will not be registered
  584:         if ($textual) {
  585: # Not registered, textual
  586: 	    $result= (<<ENDDONOTREGTEXT);
  587: ENDDONOTREGTEXT
  588:         } else {
  589: # Not registered, graphical
  590:            $result = (<<ENDDONOTREGTHIS);
  591: 
  592: <script type="text/javascript">
  593: // BEGIN LON-CAPA Internal
  594: var swmenu=null;
  595: 
  596:     function LONCAPAreg() {
  597: 	  swmenu=$reopen
  598:           $timesync
  599:           swmenu.currentStale=1;
  600:           swmenu.clearbut(2,1);
  601:           swmenu.clearbut(2,3);
  602:           swmenu.clearbut(8,1);
  603:           swmenu.clearbut(8,2);
  604:           swmenu.clearbut(8,3);
  605:           if (swmenu.currentURL) {
  606:              swmenu.switchbutton
  607:               (3,1,'reload.gif','return','location','go(currentURL)');
  608:  	  } else {
  609: 	      swmenu.clearbut(3,1);
  610:           }
  611:     }
  612: 
  613:     function LONCAPAstale() {
  614:     }
  615: 
  616: // END LON-CAPA Internal
  617: </script>
  618: ENDDONOTREGTHIS
  619:        }
  620: # =============================================================================
  621:     }
  622:     return $result;
  623: }
  624: 
  625: sub loadevents() {
  626:     if ($env{'request.state'} eq 'construct' ||
  627: 	$env{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
  628:     return 'LONCAPAreg();';
  629: }
  630: 
  631: sub unloadevents() {
  632:     if ($env{'request.state'} eq 'construct' ||
  633: 	$env{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
  634:     return 'LONCAPAstale();';
  635: }
  636: 
  637: # ============================================================= Start up remote
  638: 
  639: sub startupremote {
  640:     my ($lowerurl)=@_;
  641:     if (($env{'browser.interface'} eq 'textual') ||
  642:         ($env{'environment.remote'} eq 'off')) {
  643:      return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
  644:     }
  645: #
  646: # The Remote actually gets launched!
  647: #
  648:     my $configmenu=&rawconfig();
  649:     my $esclowerurl=&Apache::lonnet::escape($lowerurl);
  650:     my $message=&mt('"Waiting for Remote Control window to load: "+[_1]','waited');
  651:     return(<<ENDREMOTESTARTUP);
  652: <script type="text/javascript">
  653: var timestart;
  654: function wheelswitch() {
  655:     if (typeof(document.wheel) != 'undefined') {
  656: 	if (typeof(document.wheel.spin) != 'undefined') {
  657: 	    var date=new Date();
  658: 	    var waited=Math.round(30-((date.getTime()-timestart)/1000));
  659: 	    document.wheel.spin.value=$message;
  660: 	}
  661:     }
  662:    if (window.status=='|') { 
  663:       window.status='/'; 
  664:    } else {
  665:       if (window.status=='/') {
  666:          window.status='-';
  667:       } else {
  668:          if (window.status=='-') { 
  669:             window.status='\\\\'; 
  670:          } else {
  671:             if (window.status=='\\\\') { window.status='|'; }
  672:          }
  673:       }
  674:    } 
  675: }
  676: 
  677: // ---------------------------------------------------------- The wait function
  678: var canceltim;
  679: function wait() {
  680:    if ((menuloaded==1) || (tim==1)) {
  681:       window.status='Done.';
  682:       if (tim==0) {
  683:          clearTimeout(canceltim);
  684:          $configmenu
  685:          window.location='$lowerurl';  
  686:       } else {
  687: 	  window.location='/adm/remote?action=collapse&url=$esclowerurl';
  688:       }
  689:    } else {
  690:       wheelswitch();
  691:       setTimeout('wait();',200);
  692:    }
  693: }
  694: 
  695: function main() {
  696:    canceltim=setTimeout('tim=1;',30000);
  697:    window.status='-';
  698:    var date=new Date();
  699:    timestart=date.getTime();
  700:    wait();
  701: }
  702: 
  703: </script>
  704: ENDREMOTESTARTUP
  705: }
  706: 
  707: sub setflags() {
  708:     return(<<ENDSETFLAGS);
  709: <script type="text/javascript">
  710:     menuloaded=0;
  711:     tim=0;
  712: </script>
  713: ENDSETFLAGS
  714: }
  715: 
  716: sub maincall() {
  717:     if (($env{'browser.interface'} eq 'textual') ||
  718:         ($env{'environment.remote'} eq 'off')) { return ''; }
  719:     return(<<ENDMAINCALL);
  720: <script type="text/javascript">
  721:     main();
  722: </script>
  723: ENDMAINCALL
  724: }
  725: 
  726: sub load_remote_msg {
  727:     my ($lowerurl)=@_;
  728: 
  729:     if (($env{'browser.interface'} eq 'textual') ||
  730:         ($env{'environment.remote'} eq 'off')) { return ''; }
  731: 
  732:     my $esclowerurl=&Apache::lonnet::escape($lowerurl);
  733:     my $link=&mt('<a href="[_1]">Continue</a> on in Inline Menu mode',
  734: 		    "/adm/remote?action=collapse?url=$esclowerurl");
  735:     return(<<ENDREMOTEFORM);
  736: <p>
  737: <form name="wheel">
  738: <input name="spin" type="text" size="60" />
  739: </form>
  740: </p>
  741: <p>$link</p>
  742: ENDREMOTEFORM
  743: }
  744: # ================================================================= Reopen menu
  745: 
  746: sub reopenmenu {
  747:    if (($env{'browser.interface'} eq 'textual') ||
  748:        ($env{'environment.remote'} eq 'off')) { return ''; }
  749:    my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
  750:    my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
  751:    return('window.open('.$nothing.',"'.$menuname.'","",false);');
  752: } 
  753: 
  754: # =============================================================== Open the menu
  755: 
  756: sub open {
  757:     my $returnval='';
  758:     if (($env{'browser.interface'} eq 'textual') ||
  759:         ($env{'environment.remote'} eq 'off')) { 
  760: 	return '<script type="text/javascript">self.name="loncapaclient";</script>';
  761:     }
  762:     my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
  763:     unless (shift eq 'unix') {
  764: # resizing does not work on linux because of virtual desktop sizes
  765:        $returnval.=(<<ENDRESIZE);
  766: if (window.screen) {
  767:     self.resizeTo(screen.availWidth-215,screen.availHeight-55);
  768:     self.moveTo(190,15);
  769: }
  770: ENDRESIZE
  771:     }
  772:     $returnval.=(<<ENDOPEN);
  773: window.status='Opening LON-CAPA Remote Control';
  774: var menu=window.open("/res/adm/pages/menu.html","$menuname",
  775: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
  776: self.name='loncapaclient';
  777: ENDOPEN
  778:     return '<script type="text/javascript">'.$returnval.'</script>';
  779: }
  780: 
  781: 
  782: # ================================================================== Raw Config
  783: 
  784: sub clear {
  785:     my ($row,$col)=@_;
  786:     unless (($env{'browser.interface'} eq 'textual') ||
  787:             ($env{'environment.remote'} eq 'off')) {
  788:        return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
  789:    } else { 
  790:        $inlineremote[10*$row+$col]='';
  791:        return ''; 
  792:    }
  793: }
  794: 
  795: # ============================================ Switch a button or create a link
  796: # Switch acts on the javascript that is executed when a button is clicked.  
  797: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
  798: 
  799: sub switch {
  800:     my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
  801:     $act=~s/\$uname/$uname/g;
  802:     $act=~s/\$udom/$udom/g;
  803:     $top=&mt($top);
  804:     $bot=&mt($bot);
  805:     $desc=&mt($desc);
  806:     $img=&mt($img);
  807:     unless (($env{'browser.interface'} eq 'textual')  ||
  808:             ($env{'environment.remote'} eq 'off')) {
  809: # Remote
  810:        return "\n".
  811:  qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
  812:    } elsif ($env{'browser.interface'} eq 'textual') {
  813: # Accessibility
  814:        if ($nobreak==2) { return ''; }
  815:        my $text=$top.' '.$bot;
  816:        $text=~s/\s*\-\s*//gs;
  817:        if ($nobreak) {
  818: 	   $inlineremote[10*$row+$col]=
  819: 	       '<a href="javascript:'.$act.';">'.$text.'</a>';
  820:        } else {
  821: 	   $inlineremote[10*$row+$col]="\n<br />".
  822: 	       $desc.' <a href="javascript:'.$act.';">'.$text.'</a>';
  823:        }
  824:    } else {
  825: # Inline Remote
  826:        if ($nobreak==2) { return ''; }
  827:        my $text=$top.' '.$bot;
  828:        $text=~s/\s*\-\s*//gs;
  829: 
  830:        my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
  831:        if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
  832:        my $pic=
  833: 	   '<img border="0" alt="'.$text.'" src="http://'.$ENV{'HTTP_HOST'}.
  834: 	   ':'.$lonhttpdPort.'/res/adm/pages/'.$img.'" align="'.
  835: 	   ($nobreak==3?'right':'left').'" />';
  836:        if (($env{'browser.interface'} eq 'textual') || ($env{'browser.interface'} eq 'faketextual')) {
  837: # Accessibility
  838: 	   if ($nobreak==3) {
  839: 	       $inlineremote[10*$row+$col]="\n".
  840: 		   '<td width="40%" align="right"><font color="'.$font.'" size="+1">'.$text.
  841: 		   '</font></td><td width="10%" align="right" bgcolor="'.$tabbg.'">'.
  842: 		   '<a href="javascript:'.$act.';">'.$pic.'</a></td></tr>';
  843: 	   } elsif ($nobreak) {
  844: 	       $inlineremote[10*$row+$col]="\n<tr>".
  845: 		   '<td width="10%" align="left" bgcolor="'.$tabbg.'">'.
  846: 		   '<a href="javascript:'.$act.';">'.$pic.
  847: 		   '</a></td><td width="40%" align="left"><font color="'.$font.'" size="+1">'.$text.'</font></td>';
  848: 	   } else {
  849: 	       $inlineremote[10*$row+$col]="\n<tr>".
  850: 		   '<td width="10%" align="left" bgcolor="'.$tabbg.'">'.
  851: 		   '<a href="javascript:'.$act.';">'.$pic.
  852: 		   '</a></td><td colspan="3"><font color="'.$font.'">'.$desc.
  853: 		   '</font></td></tr>';       
  854: 	   }
  855:        } else {
  856: # Inline Menu
  857: 	   $inlineremote[10*$row+$col]=
  858: 		   '<a href="javascript:'.$act.';">'.$pic.
  859: 		   '</a><font color="'.$font.'" size="2">'.$desc.
  860: 		   '</font>';
  861:        }
  862:    }
  863:     return '';
  864: }
  865: 
  866: sub secondlevel {
  867:     my $output='';
  868:     my 
  869:     ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
  870:     if ($prt eq 'any') {
  871: 	   $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  872:     } elsif ($prt=~/^r(\w+)/) {
  873:         if ($rol eq $1) {
  874:            $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  875:         }
  876:     }
  877:     return $output;
  878: }
  879: 
  880: sub openmenu {
  881:     my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
  882:     if (($env{'browser.interface'} eq 'textual') ||
  883:         ($env{'environment.remote'} eq 'off')) { return ''; }
  884:     my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
  885:     return "window.open(".$nothing.",'".$menuname."');";
  886: }
  887: 
  888: sub inlinemenu {
  889:     @inlineremote=();
  890:     undef @inlineremote;
  891:     &rawconfig(1);
  892:     return join('',map { (defined($_)?$_:'') } @inlineremote);
  893: }
  894: 
  895: sub rawconfig {
  896:     my $textualoverride=shift;
  897:     my $output='';
  898:     unless (($env{'browser.interface'} eq 'textual') ||
  899:             ($env{'environment.remote'} eq 'off')) {
  900:        $output.=
  901:  "window.status='Opening Remote Control';var swmenu=".&openmenu().
  902: "\nwindow.status='Configuring Remote Control ';";
  903:     } else {
  904:        unless ($textualoverride) { return ''; }
  905:     }
  906:     my $uname=$env{'user.name'};
  907:     my $udom=$env{'user.domain'};
  908:     my $adv=$env{'user.adv'};
  909:     my $author=$env{'user.author'};
  910:     my $crs='';
  911:     if ($env{'request.course.id'}) {
  912:        $crs='/'.$env{'request.course.id'};
  913:        if ($env{'request.course.sec'}) {
  914: 	   $crs.='_'.$env{'request.course.sec'};
  915:        }
  916:        $crs=~s/\_/\//g;
  917:     }
  918:     my $pub=($env{'request.state'} eq 'published');
  919:     my $con=($env{'request.state'} eq 'construct');
  920:     my $rol=$env{'request.role'};
  921:     my $requested_domain = $env{'request.role.domain'};
  922:     foreach (@desklines) {
  923:         my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
  924:         $prt=~s/\$uname/$uname/g;
  925:         $prt=~s/\$udom/$udom/g;
  926:         $prt=~s/\$crs/$crs/g; 
  927:         $prt=~s/\$requested_domain/$requested_domain/g;
  928:         if ($pro eq 'clear') {
  929: 	    $output.=&clear($row,$col);
  930:         } elsif ($pro eq 'any') {
  931:                $output.=&secondlevel(
  932: 	  $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
  933: 	} elsif ($pro eq 'smp') {
  934:             unless ($adv) {
  935:                $output.=&secondlevel(
  936:           $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
  937:             }
  938:         } elsif ($pro eq 'adv') {
  939:             if ($adv) {
  940:                $output.=&secondlevel(
  941: 	  $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
  942:             }
  943:         } elsif (($pro=~/^p(\w+)/) && ($prt)) {
  944: 	    if (&Apache::lonnet::allowed($1,$prt)) {
  945:                $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  946:             }
  947:         } elsif ($pro eq 'course') {
  948:             if ($env{'request.course.fn'}) {
  949:                $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  950: 	    }
  951:         } elsif ($pro =~ /^courseenv_(.*)$/) {
  952:             my $key = $1;
  953:             if ($env{'course.'.$env{'request.course.id'}.'.'.$key}) {
  954:                 $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  955:             }
  956:         } elsif ($pro =~ /^course_(.*)$/) {
  957:             # Check for permissions inside of a course
  958:             if (($env{'request.course.id'}) &&
  959:                 (&Apache::lonnet::allowed($1,$env{'request.course.id'}.
  960:             ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))
  961:                  )) {
  962:                 $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  963: 	    }
  964:         } elsif ($pro eq 'author') {
  965:             if ($author) {
  966:                 if ((($prt eq 'rca') && ($env{'request.role'}=~/^ca/)) ||
  967:                     (($prt eq 'rau') && ($env{'request.role'}=~/^au/))) {
  968:                     # Check that we are on the correct machine
  969:                     my $cadom=$requested_domain;
  970:                     my $caname=$env{'user.name'};
  971:                     if ($prt eq 'rca') {
  972: 		       ($cadom,$caname)=
  973:                                ($env{'request.role'}=~/(\w+)\/(\w+)$/);
  974:                     }                       
  975:                     $act =~ s/\$caname/$caname/g;
  976:                     my $home = &Apache::lonnet::homeserver($caname,$cadom);
  977: 		    my $allowed=0;
  978: 		    my @ids=&Apache::lonnet::current_machine_ids();
  979: 		    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
  980: 		    if ($allowed) {
  981:                         $output.=switch($caname,$cadom,
  982:                                         $row,$col,$img,$top,$bot,$act,$desc);
  983:                     }
  984:                 }
  985:             }
  986:         }
  987:     }
  988:     unless (($env{'browser.interface'} eq 'textual') ||
  989:             ($env{'environment.remote'} eq 'off')) {
  990:        $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
  991:        if (&Apache::lonmsg::newmail()) { 
  992: 	   $output.='swmenu.setstatus("you have","messages");';
  993:        }
  994:     }
  995: 
  996:     return $output;
  997: }
  998: 
  999: # ======================================================================= Close
 1000: 
 1001: sub close {
 1002:     if (($env{'browser.interface'} eq 'textual') ||
 1003:         ($env{'environment.remote'} eq 'off')) { return ''; }
 1004:     my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
 1005:     return(<<ENDCLOSE);
 1006: <script type="text/javascript">
 1007: window.status='Accessing Remote Control';
 1008: menu=window.open("/adm/rat/empty.html","$menuname",
 1009:                  "height=350,width=150,scrollbars=no,menubar=no");
 1010: window.status='Disabling Remote Control';
 1011: menu.active=0;
 1012: menu.autologout=0;
 1013: window.status='Closing Remote Control';
 1014: menu.close();
 1015: window.status='Done.';
 1016: </script>
 1017: ENDCLOSE
 1018: }
 1019: 
 1020: # ====================================================================== Footer
 1021: 
 1022: sub footer {
 1023: 
 1024: }
 1025: 
 1026: sub nav_control_js {
 1027:     my $nav=($env{'environment.remotenavmap'} eq 'on');
 1028:     return (<<NAVCONTROL);
 1029:     var w_loncapanav_flag="$nav";
 1030: 
 1031: 
 1032: function gonav(url) {
 1033:    if (w_loncapanav_flag != 1) {
 1034:       gopost(url,'');
 1035:    }  else {
 1036:       navwindow=window.open(url,
 1037:                   "loncapanav","height=600,width=400,scrollbars=1"); 
 1038:    }
 1039: }
 1040: NAVCONTROL
 1041: }
 1042: 
 1043: sub utilityfunctions {
 1044:     my $caller = shift;
 1045:     unless (($env{'browser.interface'} eq 'textual')  ||
 1046:         ($env{'environment.remote'} eq 'off') || ($caller eq '/adm/menu')) { return ''; }
 1047:     my $currenturl=&Apache::lonnet::clutter(&Apache::lonnet::fixversion((split(/\?/,$env{'request.noversionuri'}))[0]));
 1048:     $currenturl=&Apache::lonenc::check_encrypt(&Apache::lonnet::unescape($currenturl));
 1049:     
 1050:     my $currentsymb=&Apache::lonenc::check_encrypt($env{'request.symb'});
 1051:     my $nav_control=&nav_control_js();
 1052: return (<<ENDUTILITY)
 1053: 
 1054:     var currentURL="$currenturl";
 1055:     var reloadURL="$currenturl";
 1056:     var currentSymb="$currentsymb";
 1057: 
 1058: $nav_control
 1059: 
 1060: function go(url) {
 1061:    if (url!='' && url!= null) {
 1062:        currentURL = null;
 1063:        currentSymb= null;
 1064:        window.location.href=url;
 1065:    }
 1066: }
 1067: 
 1068: function gopost(url,postdata) {
 1069:    if (url!='') {
 1070:       this.document.server.action=url;
 1071:       this.document.server.postdata.value=postdata;
 1072:       this.document.server.command.value='';
 1073:       this.document.server.url.value='';
 1074:       this.document.server.symb.value='';
 1075:       this.document.server.submit();
 1076:    }
 1077: }
 1078: 
 1079: function gocmd(url,cmd) {
 1080:    if (url!='') {
 1081:       this.document.server.action=url;
 1082:       this.document.server.postdata.value='';
 1083:       this.document.server.command.value=cmd;
 1084:       this.document.server.url.value=currentURL;
 1085:       this.document.server.symb.value=currentSymb;
 1086:       this.document.server.submit();
 1087:    }
 1088: }
 1089: 
 1090: function gocstr(url,filename) {
 1091:     if (url == '/adm/cfile?action=delete') {
 1092:         this.document.cstrdelete.filename.value = filename
 1093:         this.document.cstrdelete.submit();
 1094:         return;
 1095:     }
 1096:     if (url == '/adm/printout') {
 1097:         this.document.cstrprint.postdata.value = filename
 1098:         this.document.cstrprint.curseed.value = 0;
 1099:         this.document.cstrprint.problemtype.value = 0;
 1100:         if (this.document.lonhomework) {
 1101:             if ((this.document.lonhomework.rndseed) && (this.document.lonhomework.rndseed.value != null) && (this.document.lonhomework.rndseed.value != '')) {
 1102:                 this.document.cstrprint.curseed.value = this.document.lonhomework.rndseed.value
 1103:             }
 1104:             if (this.document.lonhomework.problemtype) {
 1105:                 for (var i=0; i<this.document.lonhomework.problemtype.options.length; i++) {
 1106:                     if (this.document.lonhomework.problemtype.options[i].selected) {
 1107:                         if (this.document.lonhomework.problemtype.options[i].value != null && this.document.lonhomework.problemtype.options[i].value != '') { 
 1108:                             this.document.cstrprint.problemtype.value = this.document.lonhomework.problemtype.options[i].value
 1109:                         }
 1110:                     }
 1111:                 }
 1112:             }
 1113:         }
 1114:         this.document.cstrprint.submit();
 1115:         return;
 1116:     }
 1117:     if (url !='') {
 1118:         this.document.constspace.filename.value = filename;
 1119:         this.document.constspace.action = url;
 1120:         this.document.constspace.submit();
 1121:     }
 1122: }
 1123: 
 1124: function golist(url) {
 1125:    if (url!='' && url!= null) {
 1126:        currentURL = null;
 1127:        currentSymb= null;
 1128:        top.location.href=url;
 1129:    }
 1130: }
 1131: 
 1132: 
 1133: 
 1134: function catalog_info() {
 1135:    loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
 1136: }
 1137: 
 1138: function chat_win() {
 1139:    lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizable=yes,location=no,menubar=no,toolbar=no');
 1140: }
 1141: ENDUTILITY
 1142: }
 1143: 
 1144: sub serverform {
 1145:     return(<<ENDSERVERFORM);
 1146: <form name="server" action="/adm/logout" method="post" target="_top">
 1147: <input type="hidden" name="postdata" value="none" />
 1148: <input type="hidden" name="command" value="none" />
 1149: <input type="hidden" name="url" value="none" />
 1150: <input type="hidden" name="symb" value="none" />
 1151: </form>
 1152: ENDSERVERFORM
 1153: }
 1154: 
 1155: sub constspaceform {
 1156:     return(<<ENDCONSTSPACEFORM);
 1157: <form name="constspace" action="/adm/logout" method="post" target="_top">
 1158: <input type="hidden" name="filename" value="" />
 1159: </form>
 1160: <form name="cstrdelete" action="/adm/cfile" method="post" target="_top">
 1161: <input type="hidden" name="action" value="delete" /> 
 1162: <input type="hidden" name="filename" value="" />
 1163: </form>
 1164: <form name="cstrprint" action="/adm/printout" target="_parent" method="post">
 1165: <input type="hidden" name="postdata" value="" />
 1166: <input type="hidden" name="curseed" value="" />
 1167: <input type="hidden" name="problemtype" value="" />
 1168: </form>
 1169: 
 1170: ENDCONSTSPACEFORM
 1171: }
 1172: 
 1173: 
 1174: sub get_nav_status {
 1175:     my $navstatus="swmenu.w_loncapanav_flag=";
 1176:     if ($env{'environment.remotenavmap'} eq 'on') {
 1177: 	$navstatus.="1";
 1178:     } else {
 1179: 	$navstatus.="-1";
 1180:     }
 1181:     return $navstatus;
 1182: }
 1183: 
 1184: # ================================================ Handler when called directly
 1185: 
 1186: 
 1187: sub handler {
 1188:     my $r = shift;
 1189:     &Apache::loncommon::content_type($r,'text/html');
 1190:     $r->send_http_header;
 1191:     return OK if $r->header_only;
 1192: 
 1193:     my $form;
 1194:     if ($env{'environment.remote'} ne 'off' &&
 1195: 	$env{'browser.interface'} ne 'textual') {
 1196: 	$form=&serverform();
 1197:     }
 1198:     my $bodytag=&Apache::loncommon::bodytag('Main Menu');
 1199:     my $function='student';
 1200:     if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
 1201: 	$function='coordinator';
 1202:     }
 1203:     if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
 1204: 	$function='admin';
 1205:     }
 1206:     if (($env{'request.role'}=~/^(au|ca)/) ||
 1207: 	($env{'request.noversionuri'}=~/^(\/priv|\~)/)) {
 1208: 	$function='author';
 1209:     }
 1210:     my $domain=&Apache::loncommon::determinedomain();
 1211:     $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
 1212:     $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
 1213:     $font=&Apache::loncommon::designparm($function.'.font',$domain);
 1214:     my $script_tag;
 1215:     if ($env{'environment.remote'} ne 'off') {
 1216:         my $utility=&utilityfunctions('/adm/menu');
 1217:         $script_tag=(<<ENDSCRIPT);
 1218: <script type="text/javascript">
 1219: $utility
 1220: </script>
 1221: ENDSCRIPT
 1222:     }
 1223: # ---- Print the screen, pretend to be in text mode to generate text-based menu
 1224:     unless ($env{'browser.interface'} eq 'textual') {
 1225: 	$env{'browser.interface'}='faketextual';
 1226: 	$env{'environment.remote'}='off';
 1227:     }
 1228:     my $html=&Apache::lonxml::xmlbegin();
 1229:     $r->print(<<ENDHEADER);
 1230: $html
 1231: <head>
 1232: <title>LON-CAPA Main Menu</title>
 1233: $script_tag
 1234: </head>
 1235: $bodytag
 1236: ENDHEADER
 1237:     $r->print('<table>'.&inlinemenu().'</table>'.$form);
 1238:     $r->print('</body></html>');
 1239:     return OK;
 1240: }
 1241: 
 1242: # ================================================================ Main Program
 1243: 
 1244: BEGIN {
 1245:   if (! defined($readdesk)) {
 1246:    {
 1247:     my $tabfile = $Apache::lonnet::perlvar{'lonTabDir'}.'/mydesk.tab';
 1248:     if ( CORE::open( my $config,"<$tabfile") ) {
 1249:         while (my $configline=<$config>) {
 1250:             $configline=(split(/\#/,$configline))[0];
 1251:             $configline=~s/^\s+//;
 1252:             chomp($configline);
 1253:             if ($configline) {
 1254:                 $desklines[$#desklines+1]=$configline;
 1255:             }
 1256:         }
 1257:         CORE::close($config);
 1258:     }
 1259:    }
 1260:    $readdesk='done';
 1261:   }
 1262: }
 1263: 
 1264: 1;
 1265: __END__
 1266: 
 1267: 
 1268: 
 1269: 
 1270: 
 1271: 
 1272: 

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