# The LearningOnline Network with CAPA # definition of tags that give a structure to a document # # $Id: structuretags.pm,v 1.464 2010/02/10 20:17:44 raeburn 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/ # ### =pod =head1 NAME Apache::structuretags =head1 SYNOPSIS This is part of the LearningOnline Network with CAPA project described at http://www.lon-capa.org. =head1 NOTABLE SUBROUTINES =over =item =back =cut package Apache::structuretags; use strict; use Apache::lonnet; use Apache::File(); use Apache::lonmenu; use Apache::lonlocal; use Apache::lonxml; use Apache::londefdef; use Apache::lonenc(); use Time::HiRes qw( gettimeofday tv_interval ); use lib '/home/httpd/lib/perl/'; use LONCAPA; BEGIN { &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag')); } sub start_web { my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; if ($target ne 'edit' && $target ne 'modified') { my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style); if ($target eq 'web' || $target eq 'webgrade') { return $bodytext; } } elsif ($target eq "edit" ) { my $bodytext = &Apache::lonxml::get_all_text_unbalanced("/web",$parser); my $result = &Apache::edit::tag_start($target,$token); $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1); return $result; } elsif ( $target eq "modified" ) { return $token->[4].&Apache::edit::modifiedfield("/web",$parser); } return ''; } sub end_web { return ''; } sub start_tex { my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; my $result=''; if ($target ne 'edit' && $target ne 'modified') { my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style); if ($target eq 'tex') { # If inside a table, occurrences of \\ must be removed; # else the table blows up. if (&Apache::londefdef::is_inside_of($tagstack, "table")) { $bodytext =~ s/\\\\//g; } return $bodytext.'{}'; } } elsif ($target eq "edit" ) { my $bodytext = &Apache::lonxml::get_all_text_unbalanced("/tex",$parser); my $result = &Apache::edit::tag_start($target,$token); $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1); return $result; } elsif ( $target eq "modified" ) { return $token->[4].&Apache::edit::modifiedfield("/tex",$parser); } return $result;; } sub end_tex { return ''; } sub homework_js { return &Apache::loncommon::resize_textarea_js(). &setmode_javascript(). <<'JS'; JS } sub setmode_javascript { return <<"ENDSCRIPT"; ENDSCRIPT } sub page_start { my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name, $extra_head)=@_; my %found; foreach my $taginside (@$tagstack) { foreach my $taglookedfor ('html','body','form') { if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;} } } if ($target eq 'tex') { return &Apache::londefdef::start_html($target,$token,$tagstack, $parstack,$parser,$safeeval); } $extra_head .= &homework_js(); if ($env{'environment.wysiwygeditor'} eq 'on') { $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup"); } else { $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup"); } my %body_args; if (defined($found{'html'})) { $body_args{'skip_phases'}{'head'}=1; } else { $extra_head .= &Apache::lonhtmlcommon::spellheader(); $extra_head .= &Apache::londefdef::generate_css_links(); if ($env{'request.state'} eq 'construct') { $extra_head.=&Apache::edit::js_change_detection(). "\n"; } } my $pageheader = ''; if (defined($found{'body'})) { $body_args{'skip_phases'}{'body'}=1; } elsif (!defined($found{'body'}) && $env{'request.state'} eq 'construct') { if ($target eq 'web' || $target eq 'edit') { if ($env{'environment.remote'} ne 'off') { $body_args{'only_body'} = 1; } # Breadcrumbs for Construction Space &Apache::lonhtmlcommon::clear_breadcrumbs(); &Apache::lonhtmlcommon::add_breadcrumb({ 'text' => 'Construction Space', 'href' => &Apache::loncommon::authorspace(), }); # breadcrumbs (and tools) will be created # in start_page->bodytag->innerregister # FIXME Where are we? # &Apache::lonhtmlcommon::add_breadcrumb({ # 'text' => 'Problem Editing', # 'Problem Testing' # 'href' => '', # }); $pageheader =&Apache::loncommon::head_subbox( &Apache::loncommon::CSTR_pageheader()); } } elsif (!defined($found{'body'})) { my %add_entries; my $background=&Apache::lonxml::get_param('background',$parstack, $safeeval); if ($background ne '' ) { $add_entries{'background'} = $background; } my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack, $safeeval); if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; } $body_args{'bgcolor'} = $bgcolor; # $body_args{'no_title'} = 1; $body_args{'force_register'} = 1; $body_args{'add_entries'} = \%add_entries; if ($env{'environment.remote'} eq 'off' && $env{'request.state'} eq 'construct') { $body_args{'only_body'} = 1; } } $body_args{'no_auto_mt_title'} = 1; my $page_start = &Apache::loncommon::start_page($name,$extra_head, \%body_args); $page_start .= $pageheader; if (!defined($found{'body'}) && $env{'request.state'} ne 'construct' && ($target eq 'web' || $target eq 'webgrade')) { my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser(); if ($symb eq '' && !$publicuser) { $page_start .= '
' .&mt('Browsing resource, all submissions are temporary.') .'
'; } } if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') { $page_start .= &Apache::lonxml::message_location(); } my $form_tag_start; if (!defined($found{'form'})) { $form_tag_start='\n".&Apache::loncommon::end_page(); } sub option { my ($value,$name) = @_; my $result ="