File:  [LON-CAPA] / loncom / interface / lonmenu.pm
Revision 1.371: download - view: text, annotated - select for diffs
Fri May 18 14:27:11 2012 UTC (12 years ago) by raeburn
Branches: MAIN
CVS tags: HEAD
- Primary menu.
  - replace separate 'Preferences, Portfolio, Feeds' items with sub-menu
    (uses :hover pseudo-class; works for IE7+,FF,Safari,Chrome,Opera)
    shown when hovering over 'Personal' item.
    - To do: add support for IE6 via jQuery.
  - Shorter menu can accommodate longer course titles without need for
    wrapping.

    1: # The LearningOnline Network with CAPA
    2: # Routines to control the menu
    3: #
    4: # $Id: lonmenu.pm,v 1.371 2012/05/18 14:27:11 raeburn 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: =head1 NAME
   31: 
   32: Apache::lonmenu
   33: 
   34: =head1 SYNOPSIS
   35: 
   36: Loads contents of /home/httpd/lonTabs/mydesk.tab, 
   37: used to generate inline menu, and Main Menu page. 
   38: 
   39: This is part of the LearningOnline Network with CAPA project
   40: described at http://www.lon-capa.org.
   41: 
   42: =head1 GLOBAL VARIABLES
   43: 
   44: =over
   45: 
   46: =item @desklines
   47: 
   48: Each element of this array contains a line of mydesk.tab that doesn't start with
   49: cat, prim or scnd. 
   50: It gets filled in the BEGIN block of this module.
   51: 
   52: =item %category_names
   53: 
   54: The keys of this hash are the abbreviations used in mydesk.tab in those lines that 
   55: start with cat, the values are strings representing titles. 
   56: It gets filled in the BEGIN block of this module.
   57: 
   58: =item %category_members
   59: 
   60: TODO 
   61: 
   62: =item %category_positions
   63: 
   64: The keys of this hash are the abbreviations used in mydesk.tab in those lines that
   65: start with cat, its values are position vectors (column, row). 
   66: It gets filled in the BEGIN block of this module.
   67: 
   68: =item $readdesk
   69: 
   70: Indicates that mydesk.tab has been read. 
   71: It is set to 'done' in the BEGIN block of this module.
   72: 
   73: =item @primary_menu
   74: 
   75: The elements of this array reference arrays that are made up of the components
   76: of those lines of mydesk.tab that start with prim:.
   77: It is used by primary_menu() to generate the corresponding menu.
   78: It gets filled in the BEGIN block of this module.
   79: 
   80: =item %primary_sub_menu
   81: 
   82: The keys of this hash reference are the names of items in the primary_menu array 
   83: which have sub-menus.  For each key, the corresponding value is a reference to
   84: an array containing components extracted from lines in mydesk.tab which begin
   85: with primsub:.
   86: This hash, which is used by primary_menu to generate sub-menus, is populated in
   87: the BEGIN block.
   88: 
   89: =item @secondary_menu
   90: 
   91: The elements of this array reference arrays that are made up of the components
   92: of those lines of mydesk.tab that start with scnd.
   93: It is used by secondary_menu() to generate the corresponding menu.
   94: It gets filled in the BEGIN block of this module.
   95: 
   96: =back
   97: 
   98: =head1 SUBROUTINES
   99: 
  100: =over
  101: 
  102: =item prep_menuitems(\@menuitem)
  103: 
  104: This routine wraps a menuitem in proper HTML. It is used by primary_menu() and 
  105: secondary_menu().
  106: 
  107: =item primary_menu()
  108: 
  109: This routine evaluates @primary_menu and returns XHTML for the menu
  110: that contains following links: About, Message, Roles, Help, Logout
  111: @primary_menu is filled within the BEGIN block of this module with 
  112: entries from mydesk.tab 
  113: 
  114: =item secondary_menu()
  115: 
  116: Same as primary_menu() but operates on @secondary_menu.
  117: 
  118: =item innerregister()
  119: 
  120: This gets called in order to register a URL in the body of the document
  121: 
  122: =item clear()
  123: 
  124: =item switch()
  125: 
  126: Switch a button or create a link
  127: Switch acts on the javascript that is executed when a button is clicked.  
  128: The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
  129: 
  130: =item secondlevel()
  131: 
  132: =item openmenu()
  133: 
  134: =item inlinemenu()
  135: 
  136: =item rawconfig()
  137: 
  138: =item utilityfunctions()
  139: 
  140: Output from this routine is a number of javascript functions called by
  141: items in the inline menu, and in some cases items in the Main Menu page. 
  142: 
  143: =item serverform()
  144: 
  145: =item constspaceform()
  146: 
  147: =item get_nav_status()
  148: 
  149: =item hidden_button_check()
  150: 
  151: =item roles_selector()
  152: 
  153: =item jump_to_role()
  154: 
  155: =back
  156: 
  157: =cut
  158: 
  159: package Apache::lonmenu;
  160: 
  161: use strict;
  162: use Apache::lonnet;
  163: use Apache::lonhtmlcommon();
  164: use Apache::loncommon();
  165: use Apache::lonenc();
  166: use Apache::lonlocal;
  167: use Apache::lonmsg();
  168: use LONCAPA qw(:DEFAULT :match);
  169: use HTML::Entities();
  170: use Apache::lonwishlist();
  171: 
  172: use vars qw(@desklines %category_names %category_members %category_positions 
  173:             $readdesk @primary_menu %primary_submenu @secondary_menu);
  174: 
  175: my @inlineremote;
  176: 
  177: sub prep_menuitem {
  178:     my ($menuitem) = @_;
  179:     return '' unless(ref($menuitem) eq 'ARRAY');
  180:     my $link;
  181:     if ($$menuitem[1]) { # graphical Link
  182:         $link = "<img class=\"LC_noBorder\""
  183:               . " src=\"" . &Apache::loncommon::lonhttpdurl($$menuitem[1]) . "\"" 
  184:               . " alt=\"" . &mt($$menuitem[2]) . "\" />";
  185:     } else {             # textual Link
  186:         $link = &mt($$menuitem[3]);
  187:     }
  188:     return '<li><a' 
  189:            # highlighting for new messages
  190:            . ( $$menuitem[4] eq 'newmsg' ? ' class="LC_new_message"' : '') 
  191:            . qq| href="$$menuitem[0]" target="_top">$link</a></li>|;
  192: }
  193: 
  194: # primary_menu() evaluates @primary_menu and returns XHTML for the menu
  195: # that contains following links:
  196: # About, Message, Personal, Roles, Help, Logout
  197: # @primary_menu is filled within the BEGIN block of this module with 
  198: # entries from mydesk.tab
  199: sub primary_menu {
  200:     my $menu;
  201:     # each element of @primary contains following array:
  202:     # (link url, icon path, alt text, link text, condition)
  203:     my $public;
  204:     if ((($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public'))
  205:         || (($env{'user.name'} eq '') && ($env{'user.domain'} eq ''))) {
  206:         $public = 1;
  207:     }
  208:     foreach my $menuitem (@primary_menu) {
  209:         # evaluate conditions 
  210:         next if    ref($menuitem)       ne 'ARRAY';    #
  211:         next if    $$menuitem[4]        eq 'nonewmsg'  # show links depending on
  212:                 && &Apache::lonmsg::mynewmail();       # whether a new msg 
  213:         next if    $$menuitem[4]        eq 'newmsg'    # arrived or not
  214:                 && !&Apache::lonmsg::mynewmail();      # 
  215:         next if    $$menuitem[4]        !~ /public/    ##we've a public user,
  216:                 && $public;                            ##who should not see all
  217:                                                        ##links
  218:         next if    $$menuitem[4]        eq 'onlypublic'# hide links which are 
  219:                 && !$public;                           # only visible to public
  220:                                                        # users
  221:         next if    $$menuitem[4]        eq 'roles'     ##show links depending on
  222:                 && &Apache::loncommon::show_course();  ##term 'Courses' or 
  223:         next if    $$menuitem[4]        eq 'courses'   ##'Roles' wanted
  224:                 && !&Apache::loncommon::show_course(); ##
  225:         
  226:         my $title = $menuitem->[3];
  227:         if (defined($primary_submenu{$title})) {
  228:             my ($link,$target,$numsub);
  229:             if ($menuitem->[0] ne '') {
  230:                 $link = $menuitem->[0];
  231:                 $target = '_top';
  232:             } else {
  233:                 $link = '#';
  234:             }
  235:             if (ref($primary_submenu{$title}) eq 'ARRAY') {
  236:                 $numsub = @{$primary_submenu{$title}};
  237:                 if ($numsub) {
  238:                     $title =
  239:                         '<span class="LC_nobreak">'.$title.
  240:                         '<span class="LC_fontsize_small">'.
  241:                         '&#9660;</span></span>';
  242:                 }
  243:             }
  244:             $menu .= '<li><a href="'.$link.'" target="'.$target.'">'.$title.'</a>';
  245:             if ($numsub) {
  246:                 $menu .= '<ul>';
  247:                 foreach my $item (@{$primary_submenu{$menuitem->[3]}}) {
  248:                     if (ref($item) eq 'ARRAY') {
  249:                         if ($item->[2] eq 'wishlist') {
  250:                             next unless ((&Apache::lonnet::allowed('bre',"/res/$env{'user.domain'}/")) ||
  251:                                          (&Apache::lonnet::allowed('bro',"/res/$env{'user.domain'}/")));
  252:                         } elsif ($item->[2] eq 'reqcrs') {
  253:                             next unless(&check_for_rcrs());
  254:                         } elsif (($item->[2] eq 'portfolio') ||
  255:                                  ($item->[2] eq 'blog')) {
  256:                             if (!&Apache::lonnet::usertools_access(
  257:                                     $env{'user.name'},
  258:                                     $env{'user.domain'},
  259:                                     $item->[2],undef,'tools')) {
  260:                                 next;
  261:                             }
  262:                         }
  263:                         $menu .= '<li style="margin:0;padding:0">'.
  264:                                  '<a href="'.$item->[0].
  265:                                  '" style="padding:0 0 0 10px">'.
  266:                                  $item->[1].'</a></li>';
  267:                     }
  268:                 }
  269:                 $menu .= '</ul>';
  270:             }
  271:             $menu .= '</li>';
  272:         } elsif ($$menuitem[3] eq 'Help') { # special treatment for helplink
  273:             if ($public) {
  274:                 my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
  275:                 my $defdom = &Apache::lonnet::default_login_domain();
  276:                 my $to = &Apache::loncommon::build_recipient_list(undef,
  277:                                                                   'helpdeskmail',
  278:                                                                   $defdom,$origmail);
  279:                 if ($to ne '') {
  280:                     $menu .= &prep_menuitem($menuitem); 
  281:                 }
  282:             } else {
  283:                 $menu .= '<li>'.&Apache::loncommon::top_nav_help('Help').'</li>';
  284:             }
  285:         } else {
  286:             $menu .= prep_menuitem($menuitem);
  287:         }
  288:     }
  289:     $menu =~ s/\[domain\]/$env{'user.domain'}/g;
  290:     $menu =~ s/\[user\]/$env{'user.name'}/g;
  291: 
  292:     return "<ol class=\"LC_primary_menu LC_right\">$menu</ol>";
  293: }
  294: 
  295: #returns hashref {user=>'',dom=>''} containing:
  296: #   own name, domain if user is au
  297: #   name, domain of parent author if user is ca or aa
  298: #empty return if user is not an author or not on homeserver
  299: #
  300: #TODO this should probably be moved somewhere more central
  301: #since it can be used by different parts of the system
  302: sub getauthor{
  303:     return unless $env{'request.role'}=~/^(ca|aa|au)/; #nothing to do if user isn't some kind of author
  304: 
  305:                         #co- or assistent author?
  306:     my ($dom, $user) = ($env{'request.role'} =~ /^(?:ca|aa)\.\/($match_domain)\/($match_username)$/)
  307:                        ? ($1, $2) #domain, username of the parent author
  308:                        : @env{ ('request.role.domain', 'user.name') }; #own domain, username
  309: 
  310:     # current server == home server?
  311:     my $home =  &Apache::lonnet::homeserver($user,$dom);
  312:     foreach (&Apache::lonnet::current_machine_ids()){
  313:         return {user => $user, dom => $dom} if $_ eq $home;
  314:     }
  315: 
  316:     # if wrong server
  317:     return;
  318: }
  319: 
  320: sub secondary_menu {
  321:     my $menu;
  322: 
  323:     my $crstype = &Apache::loncommon::course_type();
  324:     my $crs_sec = $env{'request.course.id'} . ($env{'request.course.sec'} 
  325:                                                ? "/$env{'request.course.sec'}"
  326:                                                : '');
  327:     my $canedit       = &Apache::lonnet::allowed('mdc', $env{'request.course.id'});
  328:     my $canviewgrps   = &Apache::lonnet::allowed('vcg', $crs_sec); 
  329:     my $canmodifyuser = &Apache::lonnet::allowed('cst', $crs_sec); 
  330:     my $canviewwnew   = &Apache::lonnet::allowed('whn', $crs_sec); 
  331:     my $canmodpara    = &Apache::lonnet::allowed('opa', $crs_sec);
  332:     my $canvgr        = &Apache::lonnet::allowed('vgr', $crs_sec);
  333:     my $canmgr        = &Apache::lonnet::allowed('mgr', $crs_sec); 
  334:     my $author        = &getauthor();
  335: 
  336:     my %groups = &Apache::lonnet::get_active_groups(
  337:                      $env{'user.domain'}, $env{'user.name'},
  338:                      $env{'course.' . $env{'request.course.id'} . '.domain'},
  339:                      $env{'course.' . $env{'request.course.id'} . '.num'});
  340: 
  341:     foreach my $menuitem (@secondary_menu) {
  342:         # evaluate conditions 
  343:         next if    ref($menuitem)  ne 'ARRAY';
  344:         next if    $$menuitem[4]   ne 'always'
  345:                 && $$menuitem[4]   ne 'author'
  346:                 && !$env{'request.course.id'};
  347:         next if    $$menuitem[4]   =~ /^mdc/
  348:                 && !$canedit;
  349:         next if    $$menuitem[4]  eq 'nvgr'
  350:                 && $canvgr;
  351:         next if    $$menuitem[4]  eq 'vgr'
  352:                 && !$canvgr;
  353:         next if    $$menuitem[4]   eq 'cst'
  354:                 && !$canmodifyuser;
  355:         next if    $$menuitem[4]   eq 'ncst'
  356:                 && $canmodifyuser;
  357:         next if    $$menuitem[4]   eq 'mgr'
  358:                 && !$canmgr;
  359:         next if    $$menuitem[4]   eq 'nmgr'
  360:                 && $canmgr;
  361:         next if    $$menuitem[4]   eq 'whn'
  362:                 && !$canviewwnew;
  363:         next if    $$menuitem[4]   eq 'opa'
  364:                 && !$canmodpara;
  365:         next if    $$menuitem[4]   =~ /showgroups$/
  366:                 && !$canviewgrps
  367:                 && !%groups;
  368:         next if    $$menuitem[4]    eq 'author'
  369:                 && !$author;
  370: 
  371:         if ($$menuitem[3] eq 'Roles' && $env{'request.course.id'}) {
  372:             # special treatment for role selector
  373:             my $roles_selector = &roles_selector(
  374:                         $env{'course.' . $env{'request.course.id'} . '.domain'},
  375:                         $env{'course.' . $env{'request.course.id'} . '.num'}  );
  376: 
  377:             $menu .= $roles_selector ? "<li>$roles_selector</li>"
  378:                                      : '';
  379:         } else {
  380:             $menu .= &prep_menuitem(\@$menuitem);
  381:         }
  382:     }
  383:     if ($menu =~ /\[url\].*\[symb\]/) {
  384:         my $escurl  = &escape( &Apache::lonenc::check_encrypt(
  385:                              $env{'request.noversionuri'}));
  386: 
  387:         my $escsymb = &escape( &Apache::lonenc::check_encrypt(
  388:                              $env{'request.symb'})); 
  389: 
  390:         if (    $env{'request.state'} eq 'construct'
  391:             and (   $env{'request.noversionuri'} eq '' 
  392:                  || !defined($env{'request.noversionuri'}))) 
  393:         {
  394:             my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
  395:             ($escurl = $env{'request.filename'}) =~ s{^\Q$londocroot\E}{};
  396:             $escurl  = &escape($escurl);
  397:         }    
  398:         $menu =~ s/\[url\]/$escurl/g;
  399:         $menu =~ s/\[symb\]/$escsymb/g;
  400:     }
  401:     $menu =~ s/\[uname\]/$$author{user}/g;
  402:     $menu =~ s/\[udom\]/$$author{dom}/g;
  403: 
  404:     return "<ul id=\"LC_secondary_menu\">$menu</ul>";
  405: }
  406: 
  407: sub innerregister {
  408:     my ($forcereg,$bread_crumbs) = @_;
  409:     my $const_space = ($env{'request.state'} eq 'construct');
  410:     my $is_const_dir = 0;
  411: 
  412:     if ($env{'request.noversionuri'} =~ m{^/res/adm/pages/}) { return ''; }
  413: 
  414:     $env{'request.registered'} = 1;
  415: 
  416:     undef(@inlineremote);
  417: 
  418:     my $resurl; 
  419:     if ( $env{'request.symb'} && $env{'request.course.id'} ) {
  420: 
  421:         (my $mapurl, my $rid, $resurl) = &Apache::lonnet::decode_symb(&Apache::lonnet::symbread());
  422:         my $coursetitle = $env{'course.'.$env{'request.course.id'}.'.description'};
  423: 
  424:         my $maptitle = &Apache::lonnet::gettitle($mapurl);
  425:         my $restitle = &Apache::lonnet::gettitle(&Apache::lonnet::symbread());
  426: 
  427: #SD
  428: #course_type only Course and Community?
  429: #
  430:         my @crumbs;
  431:         unless (($forcereg) && ($env{'request.noversionuri'} eq '/adm/navmaps')
  432:                 && ($mapurl eq $env{'course.'.$env{'request.course.id'}.'.url'})) {
  433:             @crumbs = ({text  => Apache::loncommon::course_type() 
  434:                                 . ' Contents', 
  435:                         href  => "Javascript:gopost('/adm/navmaps','')"});
  436:         }
  437:         if ($mapurl ne $env{'course.'.$env{'request.course.id'}.'.url'}) { 
  438:             push(@crumbs, {text  => '...',
  439:                            no_mt => 1});
  440:         }
  441: 
  442:         push @crumbs, {text => $maptitle, no_mt => 1} if ($maptitle 
  443:                                                    && $maptitle ne 'default.sequence' 
  444:                                                    && $maptitle ne $coursetitle);
  445: 
  446:         push @crumbs, {text => $restitle, no_mt => 1} if $restitle; 
  447: 
  448:         &Apache::lonhtmlcommon::clear_breadcrumbs();
  449:         &Apache::lonhtmlcommon::add_breadcrumb(@crumbs);
  450:     }elsif (! $const_space){
  451:         #a situation when we're looking at a resource outside of context of a 
  452:         #course or construction space (e.g. with cumulative rights)
  453:         &Apache::lonhtmlcommon::clear_breadcrumbs();
  454:         &Apache::lonhtmlcommon::add_breadcrumb({text => 'View Resource'});
  455:     }
  456: # =============================================================================
  457: # ============================ This is for URLs that actually can be registered
  458:     return '' unless ( ($env{'request.noversionuri'}!~m{^/(res/)*adm/}) 
  459:                        || $forcereg );
  460: 
  461: # -- This applies to homework problems for users with grading privileges
  462: 	my $crs='/'.$env{'request.course.id'};
  463: 	if ($env{'request.course.sec'}) {
  464: 	    $crs.='_'.$env{'request.course.sec'};
  465: 	}
  466: 	$crs=~s/\_/\//g;
  467: 
  468:         my $hwkadd='';
  469:         if ($env{'request.symb'} ne '' &&
  470: 	    $env{'request.filename'}=~/$LONCAPA::assess_re/) {
  471: 	    if (&Apache::lonnet::allowed('mgr',$crs)) {
  472: 		$hwkadd.=&switch('','',7,2,'pgrd.png','Content Grades','grades[_4]',
  473:                        "gocmd('/adm/grades','gradingmenu')",
  474:                        'Content Grades');
  475:             } elsif (&Apache::lonnet::allowed('vgr',$crs)) {
  476: 		$hwkadd.=&switch('','',7,2,'subm.png','Content Submissions','missions[_1]',
  477:                        "gocmd('/adm/grades','submission')",
  478: 		       'Content Submissions');
  479:             }
  480: 	}
  481: 	if ($env{'request.symb'} ne '' &&
  482: 	    &Apache::lonnet::allowed('opa',$crs)) {
  483: 	    $hwkadd.=&switch('','',7,3,'pparm.png','Content Settings','parms[_2]',
  484: 			     "gocmd('/adm/parmset','set')",
  485: 			     'Content Settings');
  486: 	}
  487:         if ($env{'request.symb'}=~/^uploaded/ &&
  488:             &Apache::lonnet::allowed('mdc',$crs)) {
  489:             $hwkadd.=&switch('','',7,4,'docs.png','Folder/Page Content','parms[_2]',
  490:                              "gocmd('/adm/coursedocs','direct')",
  491:                              'Folder/Page Content');
  492:         }
  493: # -- End Homework
  494:         ###
  495:         ### Determine whether or not to display the 'cstr' button for this
  496:         ### resource
  497:         ###
  498:         my $editbutton = '';
  499:         my $noeditbutton = 1;
  500:         my ($cnum,$cdom);
  501:         if ($env{'request.course.id'}) {
  502:             $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  503:             $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  504:         }
  505:         if ($env{'user.author'}) {
  506:             if ($env{'request.role'}=~/^(aa|ca|au)/) {
  507: #
  508: # We have the role of an author
  509: #
  510:                 # Set defaults for authors
  511:                 my ($top,$bottom) = ('con-','struct');
  512:                 my $action = "go('/priv/".$env{'user.domain'}.'/'.$env{'user.name'}."');";
  513:                 my $cadom  = $env{'request.role.domain'};
  514:                 my $caname = $env{'user.name'};
  515:                 my $desc = "Enter my construction space";
  516:                 # Set defaults for co-authors
  517:                 if ($env{'request.role'} =~ /^ca/) { 
  518:                     ($cadom,$caname)=($env{'request.role'}=~/($match_domain)\/($match_username)$/);
  519:                     ($top,$bottom) = ('co con-','struct');
  520:                     $action = "go('/priv/".$cadom.'/'.$caname."');";
  521:                     $desc = "Enter construction space as co-author";
  522:                 } elsif ($env{'request.role'} =~ /^aa/) {
  523:                     ($cadom,$caname)=($env{'request.role'}=~/($match_domain)\/($match_username)$/);
  524:                     ($top,$bottom) = ('co con-','struct');
  525:                     $action = "go('/priv/".$cadom.'/'.$caname."');";
  526:                     $desc = "Enter construction space as assistant co-author";
  527:                 }
  528:                 # Check that we are on the correct machine
  529:                 my $home = &Apache::lonnet::homeserver($caname,$cadom);
  530: 		my $allowed=0;
  531: 		my @ids=&Apache::lonnet::current_machine_ids();
  532: 		foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
  533: 		if (!$allowed) {
  534: 		    $editbutton=&switch('','',6,1,$top,,$bottom,$action,$desc);
  535:                     $noeditbutton = 0;
  536:                 }
  537:             }
  538: #
  539: # We are an author for some stuff, but currently do not have the role of author.
  540: # Figure out if we have authoring privileges for the resource we are looking at.
  541: # This should maybe become a privilege check in lonnet
  542: #
  543:             ##
  544:             ## Determine if user can edit url.
  545:             ##
  546:             my $cfile='';
  547:             my $cfuname='';
  548:             my $cfudom='';
  549:             my $uploaded;
  550:             my $switchserver='';
  551:             my $home;
  552:             if ($env{'request.filename'}) {
  553:                 my $file=&Apache::lonnet::declutter($env{'request.filename'});
  554:                 if (defined($cnum) && defined($cdom)) {
  555:                     $uploaded = &is_course_upload($file,$cnum,$cdom);
  556:                 }
  557:                 if (!$uploaded) {
  558: 
  559:                     $file=~s{^(priv/$match_domain/$match_username)}{/$1};
  560:                     $file=~s{^($match_domain/$match_username)}{/priv/$1};
  561: 
  562:                     # Check that the user has permission to edit this resource
  563:                     my $setpriv = 1;
  564:                     ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$setpriv);
  565:                     if (defined($cfudom)) {
  566: 		        $home=&Apache::lonnet::homeserver($cfuname,$cfudom);
  567: 		        my $allowed=0;
  568: 		        my @ids=&Apache::lonnet::current_machine_ids();
  569: 		        foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
  570: 		        if ($allowed) {
  571:                             $cfile=$file;
  572:                         } else {
  573:                             $switchserver=$file;
  574:                         }
  575:                     }
  576:                 }
  577:             }
  578:             # Finally, turn the button on or off
  579:             if (($cfile || $switchserver) && !$const_space) {
  580:                 my $nocrsedit;
  581:                 # Suppress display where CC has switched to student role.
  582:                 if ($env{'request.course.id'}) {
  583:                     unless(&Apache::lonnet::allowed('mdc',
  584:                                                     $env{'request.course.id'})) {
  585:                         $nocrsedit = 1;
  586:                     }
  587:                 }
  588:                 if ($nocrsedit) {
  589:                     $editbutton=&clear(6,1);
  590:                 } else {
  591:                     my $bot = "go('$cfile')";
  592:                     if ($switchserver) {
  593:                         if ( $env{'request.symb'} && $env{'request.course.id'} ) {
  594:                             $cfile = '/adm/switchserver?otherserver='.$home.'&amp;role='.
  595:                                      &HTML::Entities::encode($env{'request.role'},'"<>&').'&amp;symb='.
  596:                                      &HTML::Entities::encode($env{'request.symb'},'"<>&');
  597:                             $bot = "need_switchserver('$cfile');";
  598:                         }
  599:                     }
  600:                     $editbutton=&switch
  601:                        ('','',6,1,'pcstr.png','Edit','resource[_2]',
  602:                         $bot,"Edit this resource");
  603:                     $noeditbutton = 0;
  604:                 }
  605:             } elsif ($editbutton eq '') {
  606:                 $editbutton=&clear(6,1);
  607:             }
  608:         }
  609:         if (($noeditbutton) && ($env{'request.filename'})) { 
  610:             if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
  611:                 my $file=&Apache::lonnet::declutter($env{'request.filename'});
  612:                 if (defined($cnum) && defined($cdom)) {
  613:                     if (&is_course_upload($file,$cnum,$cdom)) {
  614:                         my $cfile = &edit_course_upload($file,$cnum,$cdom);
  615:                         if ($cfile) {
  616:                             $editbutton=&switch
  617:                                         ('','',6,1,'pcstr.png','Edit',
  618:                                          'resource[_2]',"go('".$cfile."');",
  619:                                          'Edit this resource');
  620:                         }
  621:                     }
  622:                 }
  623:             }
  624:         }
  625:         if ($env{'request.course.id'}) {
  626:             if ($resurl eq "public/$cdom/$cnum/syllabus") {
  627:                 if ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ /\w/) {
  628:                     if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
  629:                         $editbutton=&switch('','',6,1,'pcstr.png','Edit',
  630:                                             'resource[_2]',
  631:                                             "go('/adm/courseprefs?phase=display&actions=courseinfo')",
  632:                                             'Edit this resource');
  633:                     }
  634:                 }
  635:             }
  636:         }
  637:         ###
  638:         ###
  639: # Prepare the rest of the buttons
  640:         my $menuitems;
  641:         if ($const_space) {
  642: #
  643: # We are in construction space
  644: #
  645: 
  646:             my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
  647: 	    my ($udom,$uname,$thisdisfn) =
  648: 		($env{'request.filename'}=~m{^\Q$londocroot/priv/\E([^/]+)/([^/]+)/(.*)$});
  649:             my $currdir = '/priv/'.$udom.'/'.$uname.'/'.$thisdisfn;
  650:             if ($currdir =~ m-/$-) {
  651:                 $is_const_dir = 1;
  652:             } else {
  653:                 $currdir =~ s|[^/]+$||;
  654: 		my $cleandisfn = &Apache::loncommon::escape_single($thisdisfn);
  655: 		my $esc_currdir = &Apache::loncommon::escape_single($currdir);
  656: #
  657: # Probably should be in mydesk.tab
  658: #
  659:                 $menuitems=(<<ENDMENUITEMS);
  660: s&6&1&list.png&Directory&dir[_1]&golist('$esc_currdir')&List current directory
  661: s&6&2&rtrv.png&Retrieve&version[_1]&gocstr('/adm/retrieve','/priv/$udom/$uname/$cleandisfn')&Retrieve old version
  662: s&6&3&pub.png&Publish&resource[_3]&gocstr('/adm/publish','/priv/$udom/$uname/$cleandisfn')&Publish this resource
  663: s&7&1&del.png&Delete&resource[_2]&gocstr('/adm/cfile?action=delete','/priv/$udom/$uname/$cleandisfn')&Delete this resource
  664: s&7&2&prt.png&Print&printout[_1]&gocstr('/adm/printout','/priv/$udom/$uname/$cleandisfn')&Prepare a printable document
  665: ENDMENUITEMS
  666:             }
  667:                 if (ref($bread_crumbs) eq 'ARRAY') {
  668:                     &Apache::lonhtmlcommon::clear_breadcrumbs();
  669:                     foreach my $crumb (@{$bread_crumbs}){
  670:                         &Apache::lonhtmlcommon::add_breadcrumb($crumb);
  671:                     }
  672:                 }
  673:         } elsif ( defined($env{'request.course.id'}) && 
  674: 		 $env{'request.symb'} ne '' ) {
  675: #
  676: # We are in a course and looking at a registred URL
  677: # Should probably be in mydesk.tab
  678: #
  679: 	    $menuitems=(<<ENDMENUITEMS);
  680: c&3&1
  681: s&2&1&back.png&&&gopost('/adm/flip','back:'+currentURL)&Previous content resource&&1
  682: s&2&3&forw.png&&&gopost('/adm/flip','forward:'+currentURL)&Next content resource&&3
  683: c&6&3
  684: c&8&1
  685: c&8&2
  686: s&8&3&prt.png&Print&printout[_1]&gopost('/adm/printout',currentURL)&Prepare a printable document
  687: ENDMENUITEMS
  688:             if (&Apache::lonnet::allowed('bre', $env{'request.course.id'}) eq 'F' && $env{'request.uri'} =~ /^\/res/) {
  689:                 # wishlist is only available for users with access to resource-pool
  690:                 # and links can only be set for resources within the resource-pool
  691:                 $menuitems .= (<<ENDMENUITEMS);
  692: s&9&1&wishlist-link.png&Stored Links&wishlistlink[_2]&set_wishlistlink()&Save a link for this resource in your personal Stored Links repository&&1
  693: ENDMENUITEMS
  694:             }
  695: 
  696: my $currentURL = &Apache::loncommon::get_symb();
  697: my ($symb_old,$symb_old_enc) = &Apache::loncommon::clean_symb($currentURL);
  698: my $annotation = &Apache::loncommon::get_annotation($symb_old,$symb_old_enc);
  699: $menuitems.="s&9&3&";
  700: if(length($annotation) > 0){
  701: 	$menuitems.="anot2.png";
  702: }else{
  703: 	$menuitems.="anot.png";
  704: }
  705: $menuitems.="&Notes&&annotate()&";
  706: $menuitems.="Make notes and annotations about this resource&&1\n";
  707: 
  708:             unless ($env{'request.noversionuri'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme|viewclasslist|portfolio)(\?|$)/) {
  709: 		if ((!$env{'request.enc'}) && ($env{'request.noversionuri'} !~ m{^/adm/wrapper/ext/})) {
  710: 		    $menuitems.=(<<ENDREALRES);
  711: s&6&3&catalog.png&Info&info[_1]&catalog_info()&Show Metadata
  712: ENDREALRES
  713:                 }
  714: 	        $menuitems.=(<<ENDREALRES);
  715: s&8&1&eval.png&Evaluate&this[_1]&gopost('/adm/evaluate',currentURL,1)&Provide my evaluation of this resource
  716: s&8&2&fdbk.png&Communicate&discuss[_1]&gopost('/adm/feedback',currentURL,1)&Provide feedback messages or contribute to the course discussion about this resource
  717: ENDREALRES
  718: 	    }
  719:         }
  720: 	if ($env{'request.uri'} =~ /^\/res/) {
  721: 	    $menuitems .= (<<ENDMENUITEMS);
  722: s&8&3&prt.png&Print&printout[_1]&gopost('/adm/printout',currentURL)&Prepare a printable document
  723: ENDMENUITEMS
  724:             if (&Apache::lonnet::allowed('bre', $env{'request.course.id'}) eq 'F') {
  725:                 # wishlist is only available for users with access to resource-pool
  726:                 $menuitems .= (<<ENDMENUITEMS);
  727: s&9&1&wishlist-link.png&Stored Links&wishlistlink[_2]&set_wishlistlink()&Save a link for this resource in in your personal Stored Links repository&&1
  728: ENDMENUITEMS
  729:             }
  730: 	}
  731:         my $buttons='';
  732:         foreach (split(/\n/,$menuitems)) {
  733: 	    my ($command,@rest)=split(/\&/,$_);
  734:             my $idx=10*$rest[0]+$rest[1];
  735:             if (&hidden_button_check() eq 'yes') {
  736:                 if ($idx == 21 ||$idx == 23) {
  737:                     $buttons.=&switch('','',@rest);
  738:                 } else {
  739:                     $buttons.=&clear(@rest);
  740:                 }
  741:             } else {  
  742:                 if ($command eq 's') {
  743: 	            $buttons.=&switch('','',@rest);
  744:                 } else {
  745:                     $buttons.=&clear(@rest);
  746:                 }
  747:             }
  748:         }
  749: 
  750: 	    my $addremote=0;
  751: 	    foreach (@inlineremote) { if ($_ ne '') { $addremote=1; last;} }
  752:     if ($addremote) {
  753: 
  754:         &Apache::lonhtmlcommon::clear_breadcrumb_tools();
  755: 
  756:             &Apache::lonhtmlcommon::add_breadcrumb_tool(
  757:                 'navigation', @inlineremote[21,23]);
  758: 
  759:         if(hidden_button_check() ne 'yes') {
  760:             &Apache::lonhtmlcommon::add_breadcrumb_tool(
  761:                 'tools', @inlineremote[93,91,81,82,83]);
  762: 
  763:             #publish button in construction space
  764:             if ($env{'request.state'} eq 'construct'){
  765:                 &Apache::lonhtmlcommon::add_breadcrumb_tool(
  766:                      'advtools', $inlineremote[63]);
  767:             } else {
  768:                 &Apache::lonhtmlcommon::add_breadcrumb_tool(
  769:                      'tools', $inlineremote[63]);
  770:             }
  771:             
  772:             unless ($env{'request.noversionuri'}=~ m{^/adm/(navmaps|viewclasslist)(\?|$)}) {
  773:                 &Apache::lonhtmlcommon::add_breadcrumb_tool(
  774:                     'advtools', @inlineremote[61,71,72,73,74,92]);
  775:             }
  776:         }
  777:     }
  778: 
  779:     return   &Apache::lonhtmlcommon::scripttag('', 'start')
  780:            . &Apache::lonhtmlcommon::breadcrumbs(undef,undef,0)
  781:            . &Apache::lonhtmlcommon::scripttag('', 'end');
  782: }
  783: 
  784: sub is_course_upload {
  785:     my ($file,$cnum,$cdom) = @_;
  786:     my $uploadpath = &LONCAPA::propath($cdom,$cnum);
  787:     $uploadpath =~ s{^\/}{};
  788:     if (($file =~ m{^\Q$uploadpath\E/userfiles/docs/}) ||
  789:         ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/docs/})) {
  790:         return 1;
  791:     }
  792:     return;
  793: }
  794: 
  795: sub edit_course_upload {
  796:     my ($file,$cnum,$cdom) = @_;
  797:     my $cfile;
  798:     if ($file =~/\.(htm|html|css|js|txt)$/) {
  799:         my $ext = $1;
  800:         my $url = &Apache::lonnet::hreflocation('',$file);
  801:         my $home = &Apache::lonnet::homeserver($cnum,$cdom);
  802:         my @ids=&Apache::lonnet::current_machine_ids();
  803:         my $dest;
  804:         if ($home && grep(/^\Q$home\E$/,@ids)) {
  805:             $dest = $url.'?forceedit=1';
  806:         } else {
  807:             unless (&Apache::lonnet::get_locks()) {
  808:                 $dest = '/adm/switchserver?otherserver='.
  809:                         $home.'&role='.$env{'request.role'}.
  810:                         '&url='.$url.'&forceedit=1';
  811:             }
  812:         }
  813:         if ($dest) {
  814:             $cfile = &HTML::Entities::encode($dest,'"<>&');
  815:         }
  816:     }
  817:     return $cfile;
  818: }
  819: 
  820: # ================================================================== Raw Config
  821: 
  822: sub clear {
  823:     my ($row,$col)=@_;
  824:     $inlineremote[10*$row+$col]='';
  825:     return ''; 
  826: }
  827: 
  828: # ============================================ Switch a button or create a link
  829: # Switch acts on the javascript that is executed when a button is clicked.  
  830: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
  831: 
  832: sub switch {
  833:     my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat,$nobreak)=@_;
  834:     $act=~s/\$uname/$uname/g;
  835:     $act=~s/\$udom/$udom/g;
  836:     $top=&mt($top);
  837:     $bot=&mt($bot);
  838:     $desc=&mt($desc);
  839:     my $idx=10*$row+$col;
  840:     $category_members{$cat}.=':'.$idx;
  841: 
  842: # Inline Menu
  843:     if ($nobreak==2) { return ''; }
  844:     my $text=$top.' '.$bot;
  845:     $text=~s/\s*\-\s*//gs;
  846: 
  847:     my $pic=
  848: 	   '<img alt="'.$text.'" src="'.
  849: 	   &Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$img).
  850: 	   '" align="'.($nobreak==3?'right':'left').'" class="LC_icon" />';
  851:     if ($env{'browser.interface'} eq 'faketextual') {
  852: # Main Menu
  853: 	   if ($nobreak==3) {
  854: 	       $inlineremote[$idx]="\n".
  855: 		   '<td class="LC_menubuttons_text" align="right">'.$text.
  856: 		   '</td><td align="left">'.
  857: 		   '<a href="javascript:'.$act.';">'.$pic.'</a></td></tr>';
  858: 	   } elsif ($nobreak) {
  859: 	       $inlineremote[$idx]="\n<tr>".
  860: 		   '<td align="left">'.
  861: 		   '<a href="javascript:'.$act.';">'.$pic.'</a></td>
  862:                     <td class="LC_menubuttons_text" align="left"><a class="LC_menubuttons_link" href="javascript:'.$act.';"><span class="LC_menubuttons_inline_text">'.$text.'</span></a></td>';
  863: 	   } else {
  864: 	       $inlineremote[$idx]="\n<tr>".
  865: 		   '<td align="left">'.
  866: 		   '<a href="javascript:'.$act.';">'.$pic.
  867: 		   '</a></td><td class="LC_menubuttons_text" colspan="3">'.
  868: 		   '<a class="LC_menubuttons_link" href="javascript:'.$act.';"><span class="LC_menubuttons_inline_text">'.$desc.'</span></a></td></tr>';
  869: 	   }
  870:     } else {
  871: # Inline Menu
  872:       $inlineremote[$idx]=
  873:        '<a title="'.$desc.'" class="LC_menubuttons_link" href="javascript:'.$act.';">'.$pic.
  874:        '<span class="LC_menubuttons_inline_text">'.$top.'&nbsp;</span></a>';
  875:     }
  876:     return '';
  877: }
  878: 
  879: sub secondlevel {
  880:     my $output='';
  881:     my 
  882:     ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat)=@_;
  883:     if ($prt eq 'any') {
  884: 	   $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat);
  885:     } elsif ($prt=~/^r(\w+)/) {
  886:         if ($rol eq $1) {
  887:            $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat);
  888:         }
  889:     }
  890:     return $output;
  891: }
  892: 
  893: sub inlinemenu {
  894:     undef(@inlineremote);
  895:     undef(%category_members);
  896: # calling rawconfig with "1" will evaluate mydesk.tab, even if there is no active remote control
  897:     &rawconfig(1);
  898:     my $output='<table><tr>';
  899:     for (my $col=1; $col<=2; $col++) {
  900:         $output.='<td class="LC_mainmenu_col_fieldset">';
  901:         for (my $row=1; $row<=8; $row++) {
  902:             foreach my $cat (keys(%category_members)) {
  903:                if ($category_positions{$cat} ne "$col,$row") { next; }
  904:                #$output.='<table><tr><td colspan="4" class="LC_menubuttons_category">'.&mt($category_names{$cat}).'</td></tr>';
  905:                $output.='<div class="LC_Box LC_400Box">';
  906: 	       $output.='<h3 class="LC_hcell">'.&mt($category_names{$cat}).'</h3>';
  907:                $output.='<table>';
  908:                my %active=();
  909:                foreach my $menu_item (split(/\:/,$category_members{$cat})) {
  910:                   if ($inlineremote[$menu_item]) {
  911:                      $active{$menu_item}=1;
  912:                   }
  913:                }  
  914:                foreach my $item (sort(keys(%active))) {
  915:                   $output.=$inlineremote[$item];
  916:                }
  917:                $output.='</table>';
  918:                $output.='</div>';
  919:             }
  920:          }
  921:          $output.="</td>";
  922:     }
  923:     $output.="</tr></table>";
  924:     return $output;
  925: }
  926: 
  927: sub rawconfig {
  928: #
  929: # This evaluates mydesk.tab
  930: # Need to add more positions and more privileges to deal with all
  931: # menu items.
  932: #
  933:     my $textualoverride=shift;
  934:     my $output='';
  935:     return '' unless $textualoverride;
  936:     my $uname=$env{'user.name'};
  937:     my $udom=$env{'user.domain'};
  938:     my $adv=$env{'user.adv'};
  939:     my $show_course=&Apache::loncommon::show_course();
  940:     my $author=$env{'user.author'};
  941:     my $crs='';
  942:     my $crstype='';
  943:     if ($env{'request.course.id'}) {
  944:        $crs='/'.$env{'request.course.id'};
  945:        if ($env{'request.course.sec'}) {
  946: 	   $crs.='_'.$env{'request.course.sec'};
  947:        }
  948:        $crs=~s/\_/\//g;
  949:        $crstype = &Apache::loncommon::course_type();
  950:     }
  951:     my $pub=($env{'request.state'} eq 'published');
  952:     my $con=($env{'request.state'} eq 'construct');
  953:     my $rol=$env{'request.role'};
  954:     my $requested_domain = $env{'request.role.domain'};
  955:     foreach my $line (@desklines) {
  956:         my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc,$cat)=split(/\:/,$line);
  957:         $prt=~s/\$uname/$uname/g;
  958:         $prt=~s/\$udom/$udom/g;
  959:         if ($prt =~ /\$crs/) {
  960:             next unless ($env{'request.course.id'});
  961:             next if ($crstype eq 'Community');
  962:             $prt=~s/\$crs/$crs/g;
  963:         } elsif ($prt =~ /\$cmty/) {
  964:             next unless ($env{'request.course.id'});
  965:             next if ($crstype ne 'Community');
  966:             $prt=~s/\$cmty/$crs/g;
  967:         }
  968:         $prt=~s/\$requested_domain/$requested_domain/g;
  969:         if ($category_names{$cat}!~/\w/) { $cat='oth'; }
  970:         if ($pro eq 'clear') {
  971: 	    $output.=&clear($row,$col);
  972:         } elsif ($pro eq 'any') {
  973:                $output.=&secondlevel(
  974: 	  $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat);
  975: 	} elsif ($pro eq 'smp') {
  976:             unless ($adv) {
  977:                $output.=&secondlevel(
  978:           $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat);
  979:             }
  980:         } elsif ($pro eq 'adv') {
  981:             if ($adv) {
  982:                $output.=&secondlevel(
  983: 	  $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat);
  984:             }
  985: 	} elsif ($pro eq 'shc') {
  986:             if ($show_course) {
  987:                $output.=&secondlevel(
  988:           $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat);
  989:             }
  990:         } elsif ($pro eq 'nsc') {
  991:             if (!$show_course) {
  992:                $output.=&secondlevel(
  993: 	  $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat);
  994:             }
  995:         } elsif (($pro=~/^p(\w+)/) && ($prt)) {
  996:             my $priv = $1;
  997:             if ($priv =~ /^mdc(Course|Community)/) {
  998:                 if ($crstype eq $1) {
  999:                     $priv = 'mdc';
 1000:                 } else {
 1001:                     next;
 1002:                 }
 1003:             }
 1004: 	    if (&Apache::lonnet::allowed($priv,$prt)) {
 1005:                $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat);
 1006:             }
 1007:         } elsif ($pro eq 'course')  {
 1008:             if (($env{'request.course.fn'}) && ($crstype ne 'Community')) {
 1009:                $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat);
 1010: 	    }
 1011:         } elsif ($pro eq 'community')  {
 1012:             if (($env{'request.course.fn'}) && ($crstype eq 'Community')) {
 1013:                $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat);
 1014:             }
 1015:         } elsif ($pro =~ /^courseenv_(.*)$/) {
 1016:             my $key = $1;
 1017:             if ($crstype ne 'Community') {
 1018:                 my $coursepref = $env{'course.'.$env{'request.course.id'}.'.'.$key};
 1019:                 if ($key eq 'canuse_pdfforms') {
 1020:                     if ($env{'request.course.id'} && $coursepref eq '') {
 1021:                         my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
 1022:                         $coursepref = $domdefs{'canuse_pdfforms'};
 1023:                     }
 1024:                 }
 1025:                 if ($coursepref) { 
 1026:                     $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat);
 1027:                 }
 1028:             }
 1029:         } elsif ($pro =~ /^communityenv_(.*)$/) {
 1030:             my $key = $1;
 1031:             if ($crstype eq 'Community') {
 1032:                 my $coursepref = $env{'course.'.$env{'request.course.id'}.'.'.$key};
 1033:                 if ($key eq 'canuse_pdfforms') {
 1034:                     if ($env{'request.course.id'} && $coursepref eq '') {
 1035:                         my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
 1036:                         $coursepref = $domdefs{'canuse_pdfforms'};
 1037:                     }
 1038:                 }
 1039:                 if ($coursepref) { 
 1040:                     $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat);
 1041:                 }
 1042:             }
 1043:         } elsif ($pro =~ /^course_(.*)$/) {
 1044:             # Check for permissions inside of a course
 1045:             if (($env{'request.course.id'}) && ($crstype ne 'Community') && 
 1046:                 (&Apache::lonnet::allowed($1,$env{'request.course.id'}.
 1047:             ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))
 1048:                  )) {
 1049:                 $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat);
 1050: 	    }
 1051:         } elsif ($pro =~ /^community_(.*)$/) {
 1052:             # Check for permissions inside of a community
 1053:             if (($env{'request.course.id'}) && ($crstype eq 'Community') &&   
 1054:                 (&Apache::lonnet::allowed($1,$env{'request.course.id'}.
 1055:             ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))
 1056:                  )) {
 1057:                 $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat);
 1058:             }
 1059:         } elsif ($pro eq 'author') {
 1060:             if ($author) {
 1061:                 if ((($prt eq 'rca') && ($env{'request.role'}=~/^ca/)) ||
 1062:                     (($prt eq 'raa') && ($env{'request.role'}=~/^aa/)) || 
 1063:                     (($prt eq 'rau') && ($env{'request.role'}=~/^au/))) {
 1064:                     # Check that we are on the correct machine
 1065:                     my $cadom=$requested_domain;
 1066:                     my $caname=$env{'user.name'};
 1067:                     if (($prt eq 'rca') || ($prt eq 'raa')) {
 1068: 		       ($cadom,$caname)=
 1069:                                ($env{'request.role'}=~/($match_domain)\/($match_username)$/);
 1070:                     }                       
 1071:                     $act =~ s/\$caname/$caname/g;
 1072:                     $act =~ s/\$cadom/$cadom/g;
 1073:                     my $home = &Apache::lonnet::homeserver($caname,$cadom);
 1074: 		    my $allowed=0;
 1075: 		    my @ids=&Apache::lonnet::current_machine_ids();
 1076: 		    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
 1077: 		    if ($allowed) {
 1078:                         $output.=&switch($caname,$cadom,
 1079:                                         $row,$col,$img,$top,$bot,$act,$desc,$cat);
 1080:                     }
 1081:                 }
 1082:             }
 1083:         } elsif ($pro eq 'tools') {
 1084:             my @tools = ('aboutme','blog','portfolio');
 1085:             if (grep(/^\Q$prt\E$/,@tools)) {
 1086:                 if (!&Apache::lonnet::usertools_access($env{'user.name'},
 1087:                                                        $env{'user.domain'},
 1088:                                                        $prt,undef,'tools')) {
 1089:                     $output.=&clear($row,$col);
 1090:                     next;
 1091:                 }
 1092:             } elsif (($prt eq 'reqcrsnsc') || ($prt eq 'reqcrsshc')) {
 1093:                 if (($prt eq 'reqcrsnsc') && ($show_course))   {
 1094:                     next;
 1095:                 }
 1096:                 if (($prt eq 'reqcrsshc') && (!$show_course)) {
 1097:                     next;
 1098:                 }
 1099:                 my $showreqcrs = &check_for_rcrs();
 1100:                 if (!$showreqcrs) {
 1101:                     $output.=&clear($row,$col);
 1102:                     next;
 1103:                 }
 1104:             }
 1105:             $prt='any';
 1106:             $output.=&secondlevel(
 1107:           $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat);
 1108:         }
 1109:     }
 1110:     return $output;
 1111: }
 1112: 
 1113: sub check_for_rcrs {
 1114:     my $showreqcrs = 0;
 1115:     my @reqtypes = ('official','unofficial','community');
 1116:     foreach my $type (@reqtypes) {
 1117:         if (&Apache::lonnet::usertools_access($env{'user.name'},
 1118:                                               $env{'user.domain'},
 1119:                                               $type,undef,'requestcourses')) {
 1120:             $showreqcrs = 1;
 1121:             last;
 1122:         }
 1123:     }
 1124:     if (!$showreqcrs) {
 1125:         foreach my $type (@reqtypes) {
 1126:             if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
 1127:                 $showreqcrs = 1;
 1128:                 last;
 1129:             }
 1130:         }
 1131:     }
 1132:     return $showreqcrs;
 1133: }
 1134: 
 1135: sub dc_popup_js {
 1136:     my %lt = &Apache::lonlocal::texthash(
 1137:                                           more => '(More ...)',
 1138:                                           less => '(Less ...)',
 1139:                                         );
 1140:     return <<"END";
 1141: 
 1142: function showCourseID() {
 1143:     document.getElementById('dccid').style.display='block';
 1144:     document.getElementById('dccid').style.textAlign='left';
 1145:     document.getElementById('dccid').style.textFace='normal';
 1146:     document.getElementById('dccidtext').innerHTML ='<a href="javascript:hideCourseID();" class="LC_menubuttons_link">$lt{'less'}</a>';
 1147:     return;
 1148: }
 1149: 
 1150: function hideCourseID() {
 1151:     document.getElementById('dccid').style.display='none';
 1152:     document.getElementById('dccidtext').innerHTML ='<a href="javascript:showCourseID()" class="LC_menubuttons_link">$lt{'more'}</a>';
 1153:     return;
 1154: }
 1155: 
 1156: END
 1157: 
 1158: }
 1159: 
 1160: sub utilityfunctions {
 1161:     my $currenturl=&Apache::lonnet::clutter(&Apache::lonnet::fixversion((split(/\?/,$env{'request.noversionuri'}))[0]));
 1162:     if ($currenturl =~ m{^/adm/wrapper/ext/}
 1163:         && $env{'request.external.querystring'} ) {
 1164:             $currenturl .= ($currenturl=~/\?/)?'&':'?'.$env{'request.external.querystring'};
 1165:     }
 1166:     $currenturl=&Apache::lonenc::check_encrypt(&unescape($currenturl));
 1167:     
 1168:     my $currentsymb=&Apache::lonenc::check_encrypt($env{'request.symb'});
 1169: 
 1170:     my $dc_popup_cid;
 1171:     if ($env{'user.adv'} && exists($env{'user.role.dc./'.
 1172:                         $env{'course.'.$env{'request.course.id'}.
 1173:                                  '.domain'}.'/'})) {
 1174:         $dc_popup_cid = &dc_popup_js();
 1175:     }
 1176: 
 1177:     my $start_page_annotate = 
 1178:         &Apache::loncommon::start_page('Annotator',undef,
 1179: 				       {'only_body' => 1,
 1180: 					'js_ready'  => 1,
 1181: 					'bgcolor'   => '#BBBBBB',
 1182: 					'add_entries' => {
 1183: 					    'onload' => 'javascript:document.goannotate.submit();'}});
 1184: 
 1185:     my $end_page_annotate = 
 1186:         &Apache::loncommon::end_page({'js_ready' => 1});
 1187: 
 1188:     my $confirm_switch = &mt("Editing requires switching to the resource's home server.").'\n'.
 1189:                          &mt('Switch server?');
 1190: 
 1191:     my $esc_url=&escape($currenturl);
 1192:     my $esc_symb=&escape($currentsymb);
 1193: 
 1194: return (<<ENDUTILITY)
 1195: 
 1196:     var currentURL=unescape("$esc_url");
 1197:     var reloadURL=unescape("$esc_url");
 1198:     var currentSymb=unescape("$esc_symb");
 1199: 
 1200: $dc_popup_cid
 1201: 
 1202: function go(url) {
 1203:    if (url!='' && url!= null) {
 1204:        currentURL = null;
 1205:        currentSymb= null;
 1206:        window.location.href=url;
 1207:    }
 1208: }
 1209: 
 1210: function need_switchserver(url) {
 1211:     if (url!='' && url!= null) {
 1212:         if (confirm("$confirm_switch")) {
 1213:             go(url); 
 1214:         }
 1215:     }
 1216:     return;
 1217: }
 1218: 
 1219: function gopost(url,postdata) {
 1220:    if (url!='') {
 1221:       this.document.server.action=url;
 1222:       this.document.server.postdata.value=postdata;
 1223:       this.document.server.command.value='';
 1224:       this.document.server.url.value='';
 1225:       this.document.server.symb.value='';
 1226:       this.document.server.submit();
 1227:    }
 1228: }
 1229: 
 1230: function gocmd(url,cmd) {
 1231:    if (url!='') {
 1232:       this.document.server.action=url;
 1233:       this.document.server.postdata.value='';
 1234:       this.document.server.command.value=cmd;
 1235:       this.document.server.url.value=currentURL;
 1236:       this.document.server.symb.value=currentSymb;
 1237:       this.document.server.submit();
 1238:    }
 1239: }
 1240: 
 1241: function gocstr(url,filename) {
 1242:     if (url == '/adm/cfile?action=delete') {
 1243:         this.document.cstrdelete.filename.value = filename
 1244:         this.document.cstrdelete.submit();
 1245:         return;
 1246:     }
 1247:     if (url == '/adm/printout') {
 1248:         this.document.cstrprint.postdata.value = filename
 1249:         this.document.cstrprint.curseed.value = 0;
 1250:         this.document.cstrprint.problemtype.value = 0;
 1251:         if (this.document.lonhomework) {
 1252:             if ((this.document.lonhomework.rndseed) && (this.document.lonhomework.rndseed.value != null) && (this.document.lonhomework.rndseed.value != '')) {
 1253:                 this.document.cstrprint.curseed.value = this.document.lonhomework.rndseed.value
 1254:             }
 1255:             if (this.document.lonhomework.problemtype) {
 1256: 		if (this.document.lonhomework.problemtype.value) {
 1257: 		    this.document.cstrprint.problemtype.value = 
 1258: 			this.document.lonhomework.problemtype.value;
 1259: 		} else if (this.document.lonhomework.problemtype.options) {
 1260: 		    for (var i=0; i<this.document.lonhomework.problemtype.options.length; i++) {
 1261: 			if (this.document.lonhomework.problemtype.options[i].selected) {
 1262: 			    if (this.document.lonhomework.problemtype.options[i].value != null && this.document.lonhomework.problemtype.options[i].value != '') { 
 1263: 				this.document.cstrprint.problemtype.value = this.document.lonhomework.problemtype.options[i].value
 1264: 				}
 1265: 			}
 1266: 		    }
 1267: 		}
 1268: 	    }
 1269: 	}
 1270:         this.document.cstrprint.submit();
 1271:         return;
 1272:     }
 1273:     if (url !='') {
 1274:         this.document.constspace.filename.value = filename;
 1275:         this.document.constspace.action = url;
 1276:         this.document.constspace.submit();
 1277:     }
 1278: }
 1279: 
 1280: function golist(url) {
 1281:    if (url!='' && url!= null) {
 1282:        currentURL = null;
 1283:        currentSymb= null;
 1284:        top.location.href=url;
 1285:    }
 1286: }
 1287: 
 1288: 
 1289: 
 1290: function catalog_info() {
 1291:    openMyModal(window.location.pathname+'.meta',500,400,'yes');
 1292: }
 1293: 
 1294: function chat_win() {
 1295:    lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=480,resizable=yes,location=no,menubar=no,toolbar=no');
 1296: }
 1297: 
 1298: function group_chat(group) {
 1299:    var url = '/adm/groupchat?group='+group;
 1300:    var winName = 'LONchat_'+group;
 1301:    grpchat=window.open(url,winName,'height=320,width=280,resizable=yes,location=no,menubar=no,toolbar=no');
 1302: }
 1303: 
 1304: function annotate() {
 1305:    w_Annotator_flag=1;
 1306:    annotator=window.open('','Annotator','width=365,height=265,scrollbars=0');
 1307:    annotator.document.write(
 1308:    '$start_page_annotate'
 1309:   +"<form name='goannotate' target='Annotator' method='post' "
 1310:   +"action='/adm/annotations'>"
 1311:   +"<input type='hidden' name='symbnew' value='"+currentSymb+"' />"
 1312:   +"<\\/form>"
 1313:   +'$end_page_annotate');
 1314:    annotator.document.close();
 1315: }
 1316: 
 1317: function open_StoredLinks_Import(rat) {
 1318:    var newWin;
 1319:    if (rat) {
 1320:        newWin = window.open('/adm/wishlist?inhibitmenu=yes&mode=import&rat='+rat,
 1321:                             'wishlistImport','scrollbars=1,resizable=1,menubar=0');
 1322:    }
 1323:    else {
 1324:        newWin = window.open('/adm/wishlist?inhibitmenu=yes&mode=import',
 1325:                             'wishlistImport','scrollbars=1,resizable=1,menubar=0');
 1326:    }
 1327:    newWin.focus();
 1328: }
 1329: 
 1330: ENDUTILITY
 1331: }
 1332: 
 1333: sub serverform {
 1334:     return(<<ENDSERVERFORM);
 1335: <form name="server" action="/adm/logout" method="post" target="_top">
 1336: <input type="hidden" name="postdata" value="none" />
 1337: <input type="hidden" name="command" value="none" />
 1338: <input type="hidden" name="url" value="none" />
 1339: <input type="hidden" name="symb" value="none" />
 1340: </form>
 1341: ENDSERVERFORM
 1342: }
 1343: 
 1344: sub constspaceform {
 1345:     return(<<ENDCONSTSPACEFORM);
 1346: <form name="constspace" action="/adm/logout" method="post" target="_top">
 1347: <input type="hidden" name="filename" value="" />
 1348: </form>
 1349: <form name="cstrdelete" action="/adm/cfile" method="post" target="_top">
 1350: <input type="hidden" name="action" value="delete" /> 
 1351: <input type="hidden" name="filename" value="" />
 1352: </form>
 1353: <form name="cstrprint" action="/adm/printout" target="_parent" method="post">
 1354: <input type="hidden" name="postdata" value="" />
 1355: <input type="hidden" name="curseed" value="" />
 1356: <input type="hidden" name="problemtype" value="" />
 1357: </form>
 1358: 
 1359: ENDCONSTSPACEFORM
 1360: }
 1361: 
 1362: sub hidden_button_check {
 1363:     if ( $env{'request.course.id'} eq ''
 1364:          || $env{'request.role.adv'} ) {
 1365: 
 1366:         return;
 1367:     }
 1368:     my $buttonshide = &Apache::lonnet::EXT('resource.0.buttonshide');
 1369:     return $buttonshide; 
 1370: }
 1371: 
 1372: sub roles_selector {
 1373:     my ($cdom,$cnum) = @_;
 1374:     my $crstype = &Apache::loncommon::course_type();
 1375:     my $now = time;
 1376:     my (%courseroles,%seccount,%courseprivs);
 1377:     my $is_cc;
 1378:     my $role_selector;
 1379:     my $ccrole;
 1380:     if ($crstype eq 'Community') {
 1381:         $ccrole = 'co';
 1382:     } else {
 1383:         $ccrole = 'cc';
 1384:     }
 1385:     my $priv;
 1386:     my $destinationurl = $ENV{'REQUEST_URI'};
 1387:     my $reqprivs = &required_privs();
 1388:     if (ref($reqprivs) eq 'HASH') {
 1389:         my $destination = $destinationurl;
 1390:         $destination =~ s/(\?.*)$//;
 1391:         if (exists($reqprivs->{$destination})) {
 1392:             $priv = $reqprivs->{$destination};
 1393:         }
 1394:     }
 1395:     if ($env{'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum}) {
 1396:         my ($start,$end) = split(/\./,$env{'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum});
 1397:         
 1398:         if ((($start) && ($start<0)) || 
 1399:             (($end) && ($end<$now))  ||
 1400:             (($start) && ($now<$start))) {
 1401:             $is_cc = 0;
 1402:         } else {
 1403:             $is_cc = 1;
 1404:         }
 1405:     }
 1406:     if ($is_cc) {
 1407:         &get_all_courseroles($cdom,$cnum,\%courseroles,\%seccount,\%courseprivs,$priv);
 1408:     } else {
 1409:         my %gotnosection;
 1410:         foreach my $item (keys(%env)) {
 1411:             if ($item =~ m-^user\.role\.([^.]+)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
 1412:                 my $role = $1;
 1413:                 my $sec = $2;
 1414:                 next if ($role eq 'gr');
 1415:                 my ($start,$end) = split(/\./,$env{$item});
 1416:                 next if (($start && $start > $now) || ($end && $end < $now));
 1417:                 if ($sec eq '') {
 1418:                     if (!$gotnosection{$role}) {
 1419:                         $seccount{$role} ++;
 1420:                         $gotnosection{$role} = 1;
 1421:                     }
 1422:                 }
 1423:                 if ($priv ne '') {
 1424:                     my $cnumsec = $cnum;
 1425:                     if ($sec ne '') {
 1426:                         $cnumsec .= "/$sec";
 1427:                     }
 1428:                     $courseprivs{"$role./$cdom/$cnumsec./"} =
 1429:                         $env{"user.priv.$role./$cdom/$cnumsec./"};
 1430:                     $courseprivs{"$role./$cdom/$cnumsec./$cdom/"} =
 1431:                         $env{"user.priv.$role./$cdom/$cnumsec./$cdom/"};
 1432:                     $courseprivs{"$role./$cdom/$cnumsec./$cdom/$cnumsec"} =
 1433:                         $env{"user.priv.$role./$cdom/$cnumsec./$cdom/$cnumsec"};
 1434:                 }
 1435:                 if (ref($courseroles{$role}) eq 'ARRAY') {
 1436:                     if ($sec ne '') {
 1437:                         if (!grep(/^\Q$sec\E$/,@{$courseroles{$role}})) {
 1438:                             push(@{$courseroles{$role}},$sec);
 1439:                             $seccount{$role} ++;
 1440:                         }
 1441:                     }
 1442:                 } else {
 1443:                     @{$courseroles{$role}} = ();
 1444:                     if ($sec ne '') {
 1445:                         $seccount{$role} ++;
 1446:                         push(@{$courseroles{$role}},$sec);
 1447:                     }
 1448:                 }
 1449:             }
 1450:         }
 1451:     }
 1452:     my $switchtext;
 1453:     if ($crstype eq 'Community') {
 1454:         $switchtext = &mt('Switch community role to...')
 1455:     } else {
 1456:         $switchtext = &mt('Switch course role to...')
 1457:     }
 1458:     my @roles_order = ($ccrole,'in','ta','ep','ad','st');
 1459:     if (keys(%courseroles) > 1) {
 1460:         $role_selector = &jump_to_role($cdom,$cnum,\%seccount,\%courseroles,\%courseprivs,$priv);
 1461:         $role_selector .= '<form name="rolechooser" method="post" action="/adm/roles">
 1462:                           <select name="switchrole" onchange="javascript:adhocRole('."'switchrole'".')">';
 1463:         $role_selector .= '<option value="">'.$switchtext.'</option>';
 1464:         foreach my $role (@roles_order) {
 1465:             if (defined($courseroles{$role})) {
 1466:                 $role_selector .= "\n".'<option value="'.$role.'">'.&Apache::lonnet::plaintext($role,$crstype).'</option>'; 
 1467:             }
 1468:         }
 1469:         foreach my $role (sort(keys(%courseroles))) {
 1470:             if ($role =~ /^cr/) {
 1471:                 $role_selector .= "\n".'<option value="'.$role.'">'.&Apache::lonnet::plaintext($role).'</option>'; 
 1472:             }
 1473:         }
 1474:         $role_selector .= '</select>'."\n".
 1475:                '<input type="hidden" name="destinationurl" value="'.
 1476:                &HTML::Entities::encode($destinationurl).'" />'."\n".
 1477:                '<input type="hidden" name="gotorole" value="1" />'."\n".
 1478:                '<input type="hidden" name="selectrole" value="" />'."\n".
 1479:                '<input type="hidden" name="switch" value="1" />'."\n".
 1480:                '</form>';
 1481:     }
 1482:     return $role_selector;
 1483: }
 1484: 
 1485: sub get_all_courseroles {
 1486:     my ($cdom,$cnum,$courseroles,$seccount,$courseprivs) = @_;
 1487:     unless ((ref($courseroles) eq 'HASH') && (ref($seccount) eq 'HASH') &&
 1488:             (ref($courseprivs) eq 'HASH')) {
 1489:         return;
 1490:     }
 1491:     my ($result,$cached) = 
 1492:         &Apache::lonnet::is_cached_new('getcourseroles',$cdom.'_'.$cnum);
 1493:     if (defined($cached)) {
 1494:         if (ref($result) eq 'HASH') {
 1495:             if ((ref($result->{'roles'}) eq 'HASH') && 
 1496:                 (ref($result->{'seccount'}) eq 'HASH') && 
 1497:                 (ref($result->{'privs'}) eq 'HASH')) {
 1498:                 %{$courseroles} = %{$result->{'roles'}};
 1499:                 %{$seccount} = %{$result->{'seccount'}};
 1500:                 %{$courseprivs} = %{$result->{'privs'}};
 1501:                 return;
 1502:             }
 1503:         }
 1504:     }
 1505:     my %gotnosection;
 1506:     my %adv_roles =
 1507:          &Apache::lonnet::get_course_adv_roles($env{'request.course.id'},1);
 1508:     foreach my $role (keys(%adv_roles)) {
 1509:         my ($urole,$usec) = split(/:/,$role);
 1510:         if (!$gotnosection{$urole}) {
 1511:             $seccount->{$urole} ++;
 1512:             $gotnosection{$urole} = 1;
 1513:         }
 1514:         if (ref($courseroles->{$urole}) eq 'ARRAY') {
 1515:             if ($usec ne '') {
 1516:                 if (!grep(/^Q$usec\E$/,@{$courseroles->{$urole}})) {
 1517:                     push(@{$courseroles->{$urole}},$usec);
 1518:                     $seccount->{$urole} ++;
 1519:                 }
 1520:             }
 1521:         } else {
 1522:             @{$courseroles->{$urole}} = ();
 1523:             if ($usec ne '') {
 1524:                 $seccount->{$urole} ++;
 1525:                 push(@{$courseroles->{$urole}},$usec);
 1526:             }
 1527:         }
 1528:         my $area = '/'.$cdom.'/'.$cnum;
 1529:         if ($usec ne '') {
 1530:             $area .= '/'.$usec;
 1531:         }
 1532:         if ($role =~ /^cr\//) {
 1533:             &Apache::lonnet::custom_roleprivs($courseprivs,$urole,$cdom,$cnum,$urole.'.'.$area,$area);
 1534:         } else {
 1535:             &Apache::lonnet::standard_roleprivs($courseprivs,$urole,$cdom,$urole.'.'.$area,$cnum,$area);
 1536:         }
 1537:     }
 1538:     my %sections_count = &Apache::loncommon::get_sections($cdom,$cnum,['st']);
 1539:     @{$courseroles->{'st'}} = ();
 1540:     &Apache::lonnet::standard_roleprivs($courseprivs,'st',$cdom,"st./$cdom/$cnum",$cnum,"/$cdom/$cnum");
 1541:     if (keys(%sections_count) > 0) {
 1542:         push(@{$courseroles->{'st'}},keys(%sections_count));
 1543:         $seccount->{'st'} = scalar(keys(%sections_count));
 1544:     }
 1545:     my $rolehash = {
 1546:                      'roles'    => $courseroles,
 1547:                      'seccount' => $seccount,
 1548:                      'privs'    => $courseprivs,
 1549:                    };
 1550:     &Apache::lonnet::do_cache_new('getcourseroles',$cdom.'_'.$cnum,$rolehash);
 1551:     return;
 1552: }
 1553: 
 1554: sub jump_to_role {
 1555:     my ($cdom,$cnum,$seccount,$courseroles,$courseprivs,$priv) = @_;
 1556:     my %lt = &Apache::lonlocal::texthash(
 1557:                 this => 'This role has section(s) associated with it.',
 1558:                 ente => 'Enter a specific section.',
 1559:                 orlb => 'Enter a specific section, or leave blank for no section.',
 1560:                 avai => 'Available sections are:',
 1561:                 youe => 'You entered an invalid section choice:',
 1562:                 plst => 'Please try again.',
 1563:                 role => 'The role you selected is not permitted to view the current page.',
 1564:                 swit => 'Switch role, but display Main Menu page instead?',
 1565:     );
 1566:     my $js;
 1567:     if (ref($courseroles) eq 'HASH') {
 1568:         $js = '    var secpick = new Array("'.$lt{'ente'}.'","'.$lt{'orlb'}.'");'."\n". 
 1569:               '    var numsec = new Array();'."\n".
 1570:               '    var rolesections = new Array();'."\n".
 1571:               '    var rolenames = new Array();'."\n".
 1572:               '    var roleseclist = new Array();'."\n";
 1573:         my @items = keys(%{$courseroles});
 1574:         for (my $i=0; $i<@items; $i++) {
 1575:             $js .= '    rolenames['.$i.'] = "'.$items[$i].'";'."\n";
 1576:             my ($secs,$secstr);
 1577:             if (ref($courseroles->{$items[$i]}) eq 'ARRAY') {
 1578:                 my @sections = sort { $a <=> $b } @{$courseroles->{$items[$i]}};
 1579:                 $secs = join('","',@sections);
 1580:                 $secstr = join(', ',@sections);
 1581:             }
 1582:             $js .= '    rolesections['.$i.'] = new Array("'.$secs.'");'."\n".
 1583:                    '    roleseclist['.$i.'] = "'.$secstr.'";'."\n".
 1584:                    '    numsec['.$i.'] = "'.$seccount->{$items[$i]}.'";'."\n";
 1585:         }
 1586:     }
 1587:     my $checkroles = 0;
 1588:     if ($priv && ref($courseprivs) eq 'HASH') {
 1589:         my (%disallowed,%allowed,@disallow);
 1590:         foreach my $role (sort(keys(%{$courseprivs}))) {
 1591:             my $trole;
 1592:             if ($role =~ m{^(.+?)\Q./$cdom/$cnum\E}) {
 1593:                 $trole = $1;
 1594:             }
 1595:             if (($trole ne '') && ($trole ne 'cm')) {
 1596:                 if ($courseprivs->{$role} =~ /\Q:$priv\E($|:|\&\w+)/) {
 1597:                     $allowed{$trole} = 1;
 1598:                 } else {
 1599:                     $disallowed{$trole} = 1;
 1600:                 }
 1601:             }
 1602:         }
 1603:         foreach my $trole (keys(%disallowed)) {
 1604:             unless ($allowed{$trole}) {
 1605:                 push(@disallow,$trole);
 1606:             }
 1607:         }
 1608:         if (@disallow > 0) {
 1609:             $checkroles = 1;
 1610:             $js .= "    var disallow = new Array('".join("','",@disallow)."');\n".
 1611:                    "    var rolecheck = 1;\n";
 1612:         }
 1613:     }
 1614:     if (!$checkroles) {
 1615:         $js .=  "    var disallow = new Array();\n".
 1616:                 "    rolecheck = 0;\n";
 1617:     }
 1618:     return <<"END";
 1619: <script type="text/javascript">
 1620: //<![CDATA[
 1621: function adhocRole(roleitem) {
 1622:     $js
 1623:     var newrole =  document.rolechooser.elements[roleitem].options[document.rolechooser.elements[roleitem].selectedIndex].value;
 1624:     if (newrole == '') {
 1625:         return;
 1626:     } 
 1627:     var fullrole = newrole+'./$cdom/$cnum';
 1628:     var selidx = '';
 1629:     for (var i=0; i<rolenames.length; i++) {
 1630:         if (rolenames[i] == newrole) {
 1631:             selidx = i;
 1632:         }
 1633:     }
 1634:     if (rolecheck > 0) {
 1635:         for (var i=0; i<disallow.length; i++) {
 1636:             if (disallow[i] == newrole) {
 1637:                 if (confirm("$lt{'role'}\\n$lt{'swit'}")) {
 1638:                     document.rolechooser.destinationurl.value = '/adm/menu';
 1639:                 } else {
 1640:                     document.rolechooser.elements[roleitem].selectedIndex = 0;
 1641:                     return;
 1642:                 }
 1643:             }
 1644:         }
 1645:     }
 1646:     var secok = 1;
 1647:     var secchoice = '';
 1648:     if (selidx >= 0) {
 1649:         if (numsec[selidx] > 1) {
 1650:             secok = 0;
 1651:             var numrolesec = rolesections[selidx].length;
 1652:             var msgidx = numsec[selidx] - numrolesec;
 1653:             secchoice = prompt("$lt{'this'} "+secpick[msgidx]+"\\n$lt{'avai'} "+roleseclist[selidx],"");
 1654:             if (secchoice == '') {
 1655:                 if (msgidx > 0) {
 1656:                     secok = 1;
 1657:                 }
 1658:             } else {
 1659:                 for (var j=0; j<rolesections[selidx].length; j++) {
 1660:                     if (rolesections[selidx][j] == secchoice) {
 1661:                         secok = 1;
 1662:                     }
 1663:                 }
 1664:             }
 1665:         } else {
 1666:             if (rolesections[selidx].length == 1) {
 1667:                 secchoice = rolesections[selidx][0];
 1668:             }
 1669:         }
 1670:     }
 1671:     if (secok == 1) {
 1672:         if (secchoice != '') {
 1673:             fullrole += '/'+secchoice;
 1674:         }
 1675:     } else {
 1676:         document.rolechooser.elements[roleitem].selectedIndex = 0;
 1677:         if (secchoice != null) {
 1678:             alert("$lt{'youe'} \\""+secchoice+"\\".\\n $lt{'plst'}");
 1679:         }
 1680:         return;
 1681:     }
 1682:     if (fullrole == "$env{'request.role'}") {
 1683:         document.rolechooser.elements[roleitem].selectedIndex = 0;
 1684:         return;
 1685:     }
 1686:     itemid = retrieveIndex('gotorole');
 1687:     if (itemid != -1) {
 1688:         document.rolechooser.elements[itemid].name = fullrole;
 1689:     }
 1690:     document.rolechooser.elements[roleitem].options[document.rolechooser.elements[roleitem].selectedIndex].value = fullrole;
 1691:     document.rolechooser.selectrole.value = '1';
 1692:     document.rolechooser.submit();
 1693:     return;
 1694: }
 1695: 
 1696: function retrieveIndex(item) {
 1697:     for (var i=0;i<document.rolechooser.elements.length;i++) {
 1698:         if (document.rolechooser.elements[i].name == item) {
 1699:             return i;
 1700:         }
 1701:     }
 1702:     return -1;
 1703: }
 1704: // ]]>
 1705: </script>
 1706: END
 1707: }
 1708: 
 1709: sub required_privs {
 1710:     my $privs =  {
 1711:              '/adm/parmset'      => 'opa',
 1712:              '/adm/courseprefs'  => 'opa',
 1713:              '/adm/whatsnew'     => 'whn',
 1714:              '/adm/populate'     => 'cst',
 1715:              '/adm/trackstudent' => 'vsa',
 1716:              '/adm/statistics'   => 'vgr',
 1717:              '/adm/setblock'     => 'dcm',
 1718:              '/adm/coursedocs'   => 'mdc',
 1719:            };
 1720:     unless ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'spreadsheet') {
 1721:         $privs->{'/adm/classcalc'}   = 'vgr',
 1722:         $privs->{'/adm/assesscalc'}  = 'vgr',
 1723:         $privs->{'/adm/studentcalc'} = 'vgr';
 1724:     }
 1725:     return $privs;
 1726: }
 1727: 
 1728: # ================================================================ Main Program
 1729: 
 1730: BEGIN {
 1731:     if (! defined($readdesk)) {
 1732:         {
 1733:             my $tabfile = $Apache::lonnet::perlvar{'lonTabDir'}.'/mydesk.tab';
 1734:             if ( CORE::open( my $config,"<$tabfile") ) {
 1735:                 while (my $configline=<$config>) {
 1736:                     $configline=(split(/\#/,$configline))[0];
 1737:                     $configline=~s/^\s+//;
 1738:                     chomp($configline);
 1739:                     if ($configline=~/^cat\:/) {
 1740:                         my @entries=split(/\:/,$configline);
 1741:                         $category_positions{$entries[2]}=$entries[1];
 1742:                         $category_names{$entries[2]}=$entries[3];
 1743:                     } elsif ($configline=~/^prim\:/) {
 1744:                         my @entries = (split(/\:/, $configline))[1..5];
 1745:                         push @primary_menu, \@entries;
 1746:                     } elsif ($configline=~/^primsub\:/) {
 1747:                         my ($parent,@entries) = (split(/\:/, $configline))[1..4];
 1748:                         push (@{$primary_submenu{$parent}},\@entries);
 1749:                     } elsif ($configline=~/^scnd\:/) {
 1750:                         my @entries = (split(/\:/, $configline))[1..5];
 1751:                         push @secondary_menu, \@entries; 
 1752:                     } elsif ($configline) {
 1753:                         push(@desklines,$configline);
 1754:                     }
 1755:                 }
 1756:                 CORE::close($config);
 1757:             }
 1758:         }
 1759:         $readdesk='done';
 1760:     }
 1761: }
 1762: 
 1763: 1;
 1764: __END__
 1765: 

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>