File:  [LON-CAPA] / loncom / interface / lonsyllabus.pm
Revision 1.79: download - view: text, annotated - select for diffs
Fri Feb 20 17:45:40 2009 UTC (15 years, 3 months ago) by neumanie
Branches: MAIN
CVS tags: HEAD
Add new design syllabus.Add the"Add Record" and "View recent activity.." links in the function fieldset in aboutme. Design fixes in aboutme,simplepage,template.

    1: # The LearningOnline Network
    2: # Syllabus
    3: #
    4: # $Id: lonsyllabus.pm,v 1.79 2009/02/20 17:45:40 neumanie 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: package Apache::lonsyllabus;
   30: 
   31: use strict;
   32: use Apache::lontemplate;
   33: use Apache::Constants qw(:common);
   34: use Apache::loncommon;
   35: use Apache::lonnet;
   36: use Apache::lontexconvert;
   37: use Apache::lonfeedback;
   38: use Apache::lonannounce;
   39: use Apache::lonlocal;
   40: use Apache::lonhtmlcommon;
   41: use Apache::lonspeller();
   42: use HTML::Entities();
   43: 
   44: sub handler {
   45:     my $r = shift;
   46:     &Apache::loncommon::content_type($r,'text/html');
   47:     $r->send_http_header;
   48:     return OK if $r->header_only;
   49: 
   50:     my $target=$env{'form.grade_target'};
   51: # --------------------------------------------------- Get course info from URL
   52:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
   53: # ------------------------------------------------------------ Get query string
   54:     &Apache::loncommon::get_unprocessed_cgi
   55:                         ($ENV{'QUERY_STRING'},['forcestudent','register','forceedit','wrapperdisplay']);
   56: # ----------------------------------------------------- Is this even a course?
   57:     my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom);
   58:     if ($homeserver eq 'no_host') {
   59:         &Apache::loncommon::content_type($r,'text/html');
   60:         $r->send_http_header;
   61:       	&Apache::loncommon::simple_error_page($r,'No syllabus available',
   62: 					      'No syllabus available');
   63:         return OK;
   64:     }
   65: # ------------------------------------- There is such a course, get environment
   66:     my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
   67: 
   68: # ------------------------------------------------------------ Print the screen
   69: 
   70:     if ($target eq 'tex') {
   71: 	$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
   72:     } 
   73: # -------------------------------------------------- Let's see who handles this
   74:     my $externalsyllabus=$courseenv{'externalsyllabus'};
   75: 
   76:     if ($externalsyllabus=~/\w/) {
   77: 	
   78:        if ($env{'form.wrapperdisplay'} eq 'menu') {
   79: 	   $r->print(&Apache::lonwrapper::simple_menu());
   80:        } else {	    
   81: 	   $r->print(&Apache::lonwrapper::wrapper("/public/$cdom/$cnum/syllabus?wrapperdisplay=menu",
   82: 						   $externalsyllabus));
   83:        }
   84:        return OK;
   85:      } 
   86: 
   87: # ------------------------------ The buck stops here: internal syllabus display
   88: # --------------------------------------------------------- The syllabus fields
   89:     my %syllabusfields=&Apache::lonlocal::texthash(
   90:        'aaa_instructorinfo' => 'Instructor Information',
   91:        'bbb_description'    => 'Course Description',
   92:        'ccc_prereq'         => 'Prerequisites',
   93:        'cdc_classhours'     => 'Class Hours',
   94:        'ddd_officehours'    => 'Office Hours',
   95:        'eee_helproom'       => 'Helproom Hours',
   96:        'efe_projectinfo'    => 'Project Information',
   97:        'fff_examinfo'       => 'Exam Information',
   98:        'fgf_deadlines'      => 'Deadlines',
   99:        'ggg_grading'        => 'Grading Information',
  100:        'hhh_readings'       => 'Readings',
  101:        'iii_coursepack'     => 'Coursepack',
  102:        'jjj_weblinks'       => 'Web Links',
  103:        'kkk_textbook'       => 'Textbook',
  104:        'lll_includeurl'     => 'URLs To Include in Syllabus');
  105: # --------------------------------------------------------------- Force Student
  106:     my $forcestudent='';
  107:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  108:     my $forceedit='';
  109:     if ($env{'form.forceedit'}) { $forceedit='edit'; }
  110:        
  111: # ----------------------------------------------------------------- Make header 
  112:     if ($target ne 'tex') {
  113: 	my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  114:         my $js;
  115:         if ($env{'form.backto'} eq 'coursecatalog') {
  116:             $js .= <<"ENDSCRIPT";
  117: 
  118: <script type="text/javascript">
  119: function ToCatalog(caller) {
  120:     numidx = getIndexByName('coursenum');
  121:     if (numidx > -1) {
  122:         if (caller != 'details') {
  123:             document.backtocat.elements[numidx].value = '';
  124:         }
  125:     }
  126:     document.backtocat.submit();
  127: }
  128: 
  129: function getIndexByName(item) {
  130:     for (var i=0;i<document.backtocat.elements.length;i++) {
  131:         if (document.backtocat.elements[i].name == item) {
  132:             return i;
  133:         }
  134:     }
  135:     return -1;
  136: }
  137: 
  138: </script>
  139: 
  140: ENDSCRIPT
  141:         }
  142: 	my $start_page = 
  143: 	    &Apache::loncommon::start_page("Syllabus", $rss_link.$js,
  144: 					   {'function'       => $forcestudent,
  145: 					    'domain'         => $cdom,
  146: 					    'force_register' =>
  147: 						$env{'form.register'},});
  148: 
  149: 	$r->print($start_page);
  150:         if ($env{'form.backto'} eq 'coursecatalog') {
  151:             &Apache::lonhtmlcommon::clear_breadcrumbs();
  152:             &Apache::lonhtmlcommon::add_breadcrumb
  153:              ({href=>"javascript:ToCatalog()",
  154:                text=>"Course Catalog"});
  155:             if ($env{'form.coursenum'} ne '') {
  156:                 &Apache::lonhtmlcommon::add_breadcrumb
  157:                   ({href=>"javascript:ToCatalog('details')",
  158:                    text=>"Course details"});
  159:             }
  160:             &Apache::lonhtmlcommon::add_breadcrumb
  161:               ({href=>$r->uri,
  162:                text=>"Course syllabus"});
  163:             $r->print(&Apache::lonhtmlcommon::breadcrumbs());
  164:         }
  165: 	 $r->print('<div class="LC_ContentBoxSpecial">');
  166: 	$r->print('<h2 class="LC_hcell">'.$courseenv{'description'}.'</h2>'); 
  167: 	$r->print('<blockquote>');       
  168: 	$r->print('<h3>'.  &Apache::lonnet::domain($cdom,'description').'</h3>');
  169:     } else {
  170: 	$r->print('\noindent{\large\textbf{'.$courseenv{'description'}.'}}\\\\\\\\\textbf{'.
  171: 		  &Apache::lonnet::domain($cdom,'description').'}\\\\');
  172:     }
  173: 
  174: # -------------------------------------------------------- Get course personnel
  175:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
  176:     if ($target ne 'tex') {
  177: 	$r->print(&Apache::lonhtmlcommon::start_pick_box());
  178:     } else {
  179: 	$r->print('\begin{tabular}{|p{0.45\textwidth}|p{0.45\textwidth}|}\hline');
  180:     }
  181:     my @personnel=sort(keys(%coursepersonnel));
  182:     my $lastpers=$personnel[$#personnel];
  183:     foreach my $element (@personnel) {
  184: 	if ($target ne 'tex') {
  185: 	    $r->print(&Apache::lonhtmlcommon::row_title($element));
  186: 	} else {
  187: 	    $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$element).' & '); 
  188: 	}
  189:         foreach (split(/\,/,$coursepersonnel{$element})) {
  190: 	    my ($puname,$pudom)=split(/\:/,$_);
  191: 	    if ($target ne 'tex') {
  192:                 my $courseperson = &Apache::loncommon::plainname($puname,$pudom);
  193:                 if (($env{'user.name'} eq '') || ($env{'user.name'} eq 'public') ||
  194:                     ($env{'user.domain'} eq '') || ($env{'user.domain'} eq 'public')) {
  195: 		    $r->print(' '.$courseperson);
  196:                 } else {
  197:                     $r->print(' '.&Apache::loncommon::aboutmewrapper($courseperson,
  198:                               $puname,$pudom));
  199:                 }
  200: 	    } else {
  201: 		$r->print(' '.&Apache::loncommon::plainname($puname,
  202:                               $pudom).' ');
  203: 	    }
  204: 	}
  205: 	if ($target ne 'tex') {
  206:             my $lastclose=$element eq $lastpers?1:0;
  207:             $r->print(&Apache::lonhtmlcommon::row_closure($lastclose));
  208: 	} else {
  209: 	    $r->print('\\\\ \hline');
  210: 	}
  211:     }
  212:     if ($target ne 'tex') {
  213: 	$r->print(&Apache::lonhtmlcommon::end_pick_box());
  214:     } else {
  215: 	$r->print('\end{tabular}\\\\');
  216:     }
  217: # ---------------------------------------------------------- Load syllabus info
  218:     my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
  219:     my $allowed=0;
  220:     my $privileged=0;
  221: 
  222: # This handler might be called anonymously ...
  223: # ----------------------------------------------------- Only if not public call
  224:     if ($env{'user.environment'}) {
  225: # does this user have privileges to post, etc?
  226:        if ($env{'request.course.id'}
  227: 	   && $cdom eq $env{'course.'.$env{'request.course.id'}.'.domain'}
  228: 	   && $cnum eq $env{'course.'.$env{'request.course.id'}.'.num'}) {
  229:           $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
  230: 	  $privileged=$allowed;
  231: 	  if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
  232: 	      $forcestudent='student';
  233: 	  }
  234:           if ($forcestudent or $target eq 'tex') { $allowed=0; }
  235:        }
  236:        if ($allowed) {
  237:           my $protocol = $Apache::lonnet::protocol{$homeserver};
  238:           $protocol = 'http' if ($protocol ne 'https');
  239:           $r->print('<p>'.&Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).'</p><p>'.&mt('This syllabus can be publicly viewed at')
  240: 		    .' <tt>'.$protocol.'://'.
  241: 		    &Apache::lonnet::hostname($homeserver).$r->uri.'</tt>'.
  242:                &Apache::loncommon::help_open_topic('Syllabus_ExtLink').'</p>'.
  243:           '<p>'.&mt('You can specify an external URL as Syllabus in the [_1].','<a href="/adm/parmset?action=crsenv">'.&mt('Course Parameters').'</a>').'</p>');
  244:       } 
  245:        if (($allowed) && ($env{'form.storesyl'})) {
  246: 	   foreach my $syl_field (keys(%syllabusfields)) {
  247:                my $field=$env{'form.'.$syl_field};
  248: 	       chomp($field);
  249:                $field=~s/\s+$//s;
  250: 	       $field=~s/^\s+//s;
  251: 	       $field=~s/\<br\s*\/*\>$//s;
  252: 	       $field=&Apache::lonfeedback::clear_out_html($field,1);
  253: 	       $syllabus{$syl_field}=$field;
  254:                if ($syl_field eq 'lll_includeurl') { # clean up included URLs
  255:                   my $field='';
  256: 	          foreach my $value (split(/\n/,$syllabus{$syl_field})) {
  257: 		      my $url=$value;
  258: # get rid of leading and trailing spaces
  259:                       $url=~s/^\s+//;
  260:                       $url=~s/\s+$//;
  261:                       if ($url=~m|^https?\://([^/]+)/(.+)$|) {
  262: 			  my $host = $1;
  263:                           my $remainder=$2;
  264: # remove the hostname from internal URLs
  265: 			  my $hostname = &Apache::lonnet::hostname($host);
  266: 			  my %all_hostnames = &Apache::lonnet::all_hostnames();
  267: 		          foreach my $possible_host (keys(%all_hostnames)) {
  268:                               if ($possible_host =~ /\Q$hostname\E/i) {
  269: 			         $url=$remainder;
  270: 			      }
  271: 		          }
  272: 		      }
  273: # norm internal URLs
  274:                       unless ($url=~/^https?\:/) {
  275: 		          $url=&Apache::lonnet::clutter($url);
  276:                       }
  277: # re-assemble field
  278:                       if ($url) {
  279: 		          $field.=$url."\n";
  280:                       }
  281: 		  }
  282:                   $syllabus{$syl_field}=$field;
  283: 	      }
  284:            }
  285:            $syllabus{'uploaded.domain'}=$env{'user.domain'};
  286:            $syllabus{'uploaded.name'}=$env{'user.name'};
  287:            $syllabus{'uploaded.lastmodified'}=time;
  288:            &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
  289:        }
  290:     }
  291: #----------Print last update
  292:  my $lastmod=$syllabus{'uploaded.lastmodified'};
  293:        $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  294:        my $who = &Apache::loncommon::aboutmewrapper(
  295:                     &Apache::loncommon::plainname($syllabus{'uploaded.name'},
  296:                      $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
  297:                      $syllabus{'uploaded.domain'});      
  298:  if ($target ne 'tex') {
  299: 	   $r->print('<table><tr><td>'.&mt('Last updated').':</td><td>'.
  300: 		     $lastmod.'</td><td>'.
  301: 		     ($who ? &mt('by').' '.$who
  302:                            : '' ).
  303: 		     '</td></tr></table>');
  304:        } else {
  305: 	   $r->print('\\\\ '.&mt('Last updated').': '.$lastmod.' '.
  306: 		     ($who? &mt('by').'\\\\ '.
  307: 		            &Apache::loncommon::plainname($syllabus{'uploaded.name'},$syllabus{'uploaded.domain'})
  308: 		          :'')
  309: 		     .'\\\\');
  310:        }	
  311: #--------Functions
  312: if ($target ne 'tex') {
  313: 		if($allowed || $privileged){		
  314: 		&Apache::lontemplate::print_start_page_functions($r);
  315: 		if($allowed){ 		
  316: 		&Apache::lontemplate::print_functions_content($r,'<a href="'.$r->uri.'?forcestudent=1">'.&mt('Show Public View').'</a>'.				&Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView'));	      		
  317: 		}elsif($privileged){
  318: 			&Apache::lontemplate::print_functions_content($r,'<a href="'.$r->uri.'?forceedit=1">'.&mt('Edit').'</a>'); 
  319: 		}
  320: 		&Apache::lontemplate::print_end_page_functions($r);
  321: 		}
  322:  }
  323: # -------------------------------------------------------------- Announcements?
  324:     my $day = &Apache::lonannounce::showday(time,2,
  325: 			 &Apache::lonannounce::readcalendar($cdom.'_'.$cnum));
  326:     if ($target ne 'tex') {	
  327: 	&Apache::lontemplate::print_template($r,'RSS Feeds and Blogs',&Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit),1,'LC_ContentBoxSpecial');
  328:     } else {
  329: 	$r->print(&Apache::lonxml::xmlparse($r,'tex',$day));
  330:     }	
  331: # ---------------------------------------------------------------- Get syllabus
  332:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {     
  333:        if ($allowed) {
  334: 	   $r->print('<form method="post">'.
  335: 		     '<input type="hidden" name="forceedit" value="edit" />');
  336:        }
  337:        my @htmlids=();
  338: 	
  339: 	foreach my $field (sort(keys(%syllabusfields))) {
  340: 	   if (($syllabus{$field}=~/\w/) || ($allowed)) {
  341: 	       my $message=$syllabus{$field};
  342: 	       if ($field eq 'lll_includeurl') { # this is the "included" field
  343: 		   my $urls=$message;		
  344: 		   $message='';		  
  345: 		   foreach my $filelink (split(/\n/,$urls)) {			
  346: 		       my $output='';
  347: 			# embed style?
  348: 		       my ($curfext)=($filelink=~/\.([^\.]+)$/);		
  349: 		       my $embstyle=&Apache::loncommon::fileembstyle($curfext);			
  350: 		       if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {# make ssi call and remove everything but the body contents
  351: 			   $output=&Apache::lonnet::ssi_body($filelink);
  352: 		       } elsif ($embstyle eq 'img') {# embed as an image
  353: 			   $output='<img src="'.$filelink.'" />';
  354: 		       }
  355: 		       if($output ne ''){
  356: 		       		if ($target ne 'tex') {				
  357: 			  	 	$message.='<p>'.$output.'</p>';
  358: 		       		} else {
  359: 			   		$message.=' '.&Apache::lonxml::xmlparse($r,'tex','<p>'.$output.'</p>').' ';
  360: 		       		}
  361: 			}     
  362: 		   }
  363: 		   if ($allowed) {
  364: 		       $r->print('<h3>'.$syllabusfields{$field}.
  365: 			 &Apache::loncommon::help_open_topic('Syllabus_URLs').'</h3>');
  366: 		   } else {
  367: 		       $r->print($message);
  368: 		   } 
  369: 	       } else {
  370: 		   &Apache::lonfeedback::newline_to_br(\$message);
  371: 		   $message =~s|(https?\://[^\s]+)|<a href="$1"><tt>$1</tt></a>|g;
  372: 		   if ($allowed) {
  373: 		       $message=&Apache::lonspeller::markeduptext($message);
  374: 		   }
  375: 		   $message=&Apache::lontexconvert::msgtexconverted($message);
  376: 		   if ($target ne 'tex') {
  377: 			if($allowed){
  378: 				$r->print('<p>');
  379: 			}			
  380: 			&Apache::lontemplate::print_template($r, $syllabusfields{$field}, $message,$allowed,'LC_ContentBoxSpecial');
  381: 		   } else {
  382: 		       $r->print('\\\\\textbf{'.$syllabusfields{$field}.'}\\\\'.
  383: 				 &Apache::lonxml::xmlparse($r,'tex',$message).'\\\\');
  384: 		   }
  385: 		   push(@htmlids,$field);
  386: 	       }
  387: 	       if ($allowed) {
  388: 			if($target ne 'tex'){
  389: 				$r->print('</p>');
  390: 				&Apache::lontemplate::print_editbox_template($r, $syllabus{$field}, $field);
  391: 			}
  392: 			
  393: 	       }
  394: 	   }
  395:        }    
  396: 	
  397:        if ($allowed) {
  398: 	   $r->print('</form>'.
  399: 		     &Apache::lonhtmlcommon::htmlareaselectactive(@htmlids));
  400:        }
  401:       # if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
  402:     } else {
  403: 	if ($target ne 'tex') {$r->print('<p>');} else {$r->print('\par ');} 
  404: 	$r->print(&mt('No syllabus information provided.'));
  405: 	if ($target ne 'tex') {$r->print('</p>');}
  406:     }
  407:     if ($target ne 'tex') {	
  408: 	$r->print('</blockquote>');
  409:     	$r->print('</div>');		
  410:         if ($env{'form.backto'} eq 'coursecatalog') {
  411:             $r->print('<form name="backtocat" method="post" action="/adm/coursecatalog">'.
  412:                       &Apache::lonhtmlcommon::echo_form_input(['backto','courseid']).
  413:                       '</form>');
  414:         }
  415: 	$r->print(&Apache::loncommon::end_page());
  416:     } else {
  417: 	$r->print('\end{document}');
  418:     }
  419:     return OK;
  420: } 
  421: 
  422: 1;
  423: __END__

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