# The LearningOnline Network with CAPA # Edit Handler for RAT Maps # # $Id: lonratedt.pm,v 1.8 2002/05/10 18:58:04 www Exp $ # # Copyright Michigan State University Board of Trustees # # This file is part of the LearningOnline Network with CAPA (LON-CAPA). # # LON-CAPA is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # LON-CAPA is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with LON-CAPA; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # /home/httpd/html/adm/gpl.txt # # http://www.lon-capa.org/ # # (TeX Content Handler # # 05/29/00,05/30 Gerd Kortemeyer) # 7/1,6/30 Gerd Kortemeyer package Apache::lonratedt; use strict; use Apache::Constants qw(:common); use Apache::lonnet; use Apache::lonratsrv; my @links=(); my @resources=(); # Mapread read maps into global arrays @links and @resources, determines status sub mapread { my $fn=shift; undef @links; undef @resources; my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,''); if ($errtext) { return ($errtext,2); } foreach (split(/\<\&\>/,$outtext)) { my ($command,$parms)=split(/\<\:\>/,$_); my @item=split(/\:/,$parms); if ($command eq 'objcont') { } if ($command eq 'objlinks') { if (defined($links[$item[0]])) { return ('Map too complex, has branchings. Use advanced editor.',1); } if ($links[$item[2]]) { return ('Map too complex, has conditions. Use advanced editor.',1); } $links[$item[0]]=$item[1]; } } return $errtext; } # --------------------------------------------------------- Build up RAT screen sub ratedt { my ($r,$url)=@_; $r->print(< ENDDOCUMENT } # ---------------------------------------------------------------- Make buttons sub buttons { my $adv=shift; my $output='
'; if ($adv==1) { $output.=''; } else { unless ($adv==2) { $output.=''; } $output.=''; } return $output.'

'; } sub smpedt { my ($r,$errtext)=@_; my $buttons=&buttons(2); # ----------------------------------------------------- Start simple RAT screen $r->print(< $buttons $errtext Group Search Group Import ENDSMPHEAD $r->print( ''); } sub nodir { my ($r,$dir)=@_; $dir=~s/^\/home\/\w+\/public\_html//; $r->print(<

No such directory: $dir

ENDNODIR } # ---------------------------------------------------------------- View Handler sub viewmap { my ($r,$adv)=@_; $r->print(''.&buttons($adv)); $r->print(''); } # ================================================================ Main Handler sub handler { my $r=shift; $r->content_type('text/html'); $r->send_http_header; return OK if $r->header_only; my $url=$r->uri; my $fn=&Apache::lonnet::filelocation('',$url); my ($dir)=($fn=~/^(.+)\/[^\/]+$/); unless (-e $dir) { &nodir($r,$dir); return OK; } # ------------------------------------------- Determine which tools can be used my $adv=0; unless ($ENV{'form.forcesmp'}) { if ($ENV{'form.forceadv'}) { $adv=1; } elsif (my $fh=Apache::File->new($fn)) { my $allmap=join('',<$fh>); $adv=($allmap=~/\]+mode\s*\=\s*(\'|\")rat/is); } } my $errtext=''; my $fatal=0; # -------------------------------------------------------------------- Load map ($errtext,$fatal)=&mapread($fn,$errtext); if ($fatal==1) { $adv=1; } # ----------------------------------- adv==1 now means "graphical MUST be used" if ($ENV{'form.forceadv'}) { &ratedt($r,$url); } elsif ($ENV{'form.forcesmp'}) { &smpedt($r,$errtext); } else { &viewmap($r,$adv); } return OK; } 1; __END__