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- Customization for GCI_3.
  - xhtml

    1: # The LearningOnline Network with CAPA
    2: # displays the main menu
    3: #
    4: # $Id: lonmainmenu.pm,v 1.8.4.5 2009/12/15 05:17:52 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: # 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::lonmainmenu;
   40: 
   41: use strict;
   42: use Apache::Constants qw(:common);
   43: use Apache::loncommon();
   44: use Apache::lonnet;
   45: use Apache::lonmenu();
   46: use Apache::lonlocal;
   47: use LONCAPA qw(:DEFAULT :match);
   48: 
   49: sub handler {
   50:     my $r = shift;
   51:     &Apache::loncommon::no_cache($r);
   52:     &Apache::loncommon::content_type($r,'text/html');
   53:     $r->send_http_header;
   54:     return OK if $r->header_only;
   55: 
   56:     my $form;
   57:     if ($env{'environment.remote'} ne 'off') {
   58: 	$form=&Apache::lonmenu::serverform();
   59:     }
   60: 
   61:     my $custommenu = &Apache::loncommon::needs_gci_custom();
   62:     my ($script_tag,$switcher);
   63:     if ($env{'environment.remote'} ne 'off') {
   64:         my $utility=&Apache::lonmenu::utilityfunctions('/adm/menu');
   65:         $script_tag=(<<ENDSCRIPT);
   66: <script type="text/javascript">
   67: $utility
   68: </script>
   69: ENDSCRIPT
   70:     } elsif ($custommenu) {
   71:         my $switcher_js;
   72:         my %courses = &Apache::loncommon::existing_gcitest_courses();
   73:         my $numcourses = keys(%courses);
   74:         if ($numcourses > 0) {
   75:             $switcher = &gcitest_switcher(%courses);
   76:             my $current;
   77:             if ($env{'request.course.id'}) {
   78:                 $current = 'cc./'.$env{'course.'.$env{'request.course.id'}.'.domain'}.
   79:                            '/'.$env{'course.'.$env{'request.course.id'}.'.num'};
   80:             }
   81:             $switcher_js = &gcitest_switcher_js($current,$numcourses);
   82:             $script_tag= <<"ENDSCRIPT";
   83: <script type="text/javascript">
   84: // <![CDATA[
   85: 
   86: $switcher_js
   87: 
   88: // ]]>
   89: </script>
   90: ENDSCRIPT
   91:         }
   92:     }
   93: # ---- Print the screen, pretend to be in text mode to generate text-based menu
   94: # temporarily set interface to "faketextual" and remote to "off", which renders
   95: # the main menu
   96:     $env{'browser.interface'}='faketextual';
   97:     $env{'environment.remote'}='off';
   98: 
   99:     $r->print(&Apache::loncommon::start_page( 'Main Menu',
  100:                                               $script_tag,
  101:                                               {'bread_crumbs' => 1}));
  102:     if ($custommenu) {
  103:         $r->print(&Apache::lonmenu::inlinemenu('gcicustom',$switcher).$form);
  104:     } else {
  105:         $r->print(&Apache::lonmenu::inlinemenu().$form);
  106:     }
  107:     $r->print(&Apache::loncommon::end_page());
  108:     return OK;
  109: }
  110: 
  111: sub gcitest_switcher {
  112:     my (%courses) = @_;
  113:     my $output;
  114:     my %Sortby;
  115:     foreach my $course (sort(keys(%courses))) {
  116:         next unless (ref($courses{$course}) eq 'HASH');
  117:         my $clean_title = $courses{$course}{'description'};
  118:         $clean_title =~ s/\W+//g;
  119:         if ($clean_title eq '') {
  120:             $clean_title = $courses{$course}{'description'};
  121:         }
  122:         push(@{$Sortby{$clean_title}},$course);
  123:     }
  124:     my @sorted_courses = sort { lc($a) cmp lc($b) } (keys(%Sortby));
  125:     my $default;
  126:     if (@sorted_courses > 1) {
  127:         if (($env{'request.course.id'}) && ($courses{$env{'request.course.id'}})) {
  128:             $default = &mt('Switch concept test ...');
  129:         } else {
  130:             $default = &mt('Select a concept test ...');
  131:         }
  132:     } else {
  133:         unless (($env{'request.course.id'}) && ($courses{$env{'request.course.id'}})) {
  134:             $default = &mt('Select concept test ...');
  135:         }
  136:     }
  137:     if ($default) {
  138:         $output = '<form name="pickrole" action="/adm/roles" method="post">'.
  139:                   '<select name="newrole" onchange="javascript:courseswitcher();">'.
  140:                   '<option value="" selected="selected">'.$default.'</option>';
  141:         foreach my $item (@sorted_courses) {
  142:             foreach my $course (@{$Sortby{$item}}) {
  143:                 my ($cdom,$cnum) = split('_',$course);
  144:                 $output .= '<option value="cc./'.$cdom.'/'.$cnum.'">'.$courses{$course}{'description'}.'</option>';
  145:             }
  146:         }
  147:         $output .= '</select><input type="hidden" name="selectrole" value="" /></form>';
  148:     }
  149:     return $output;
  150: }
  151: 
  152: sub gcitest_switcher_js {
  153:     my ($current,$numcourses) = @_;
  154:     my $output = <<"ENDJS";
  155: 
  156: function courseswitcher(caller) {
  157:     var numcourses = $numcourses;
  158:     var current = '$current';
  159:     var choice = document.pickrole.newrole.options[document.pickrole.newrole.selectedIndex].value;
  160:     if (choice == '') {
  161:         if (caller == 'icon') {
  162:             alert('No Concept Test selected');
  163:         }
  164:         document.pickrole.selectrole.value = '';
  165:         return;
  166:     }
  167:     if (choice == current) {
  168:         if ((caller != 'icon') && (numcourses > 1)) {
  169:             alert('You have selected the current course.\\nPlease select a different Concept Test course');
  170:         }
  171:         document.pickrole.newrole.selectedIndex = 0;
  172:         document.pickrole.selectrole.value = '';
  173:         return;
  174:     }
  175:     document.pickrole.selectrole.value = '1';
  176:     document.pickrole.submit();
  177:     return;
  178: }
  179: 
  180: ENDJS
  181:     return $output;
  182: }
  183: 
  184: 1;
  185: __END__
  186: 
  187: 
  188: 
  189: 
  190: 
  191: 
  192: