version 1.1, 2000/10/03 20:33:06
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version 1.115, 2025/02/07 20:46:01
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# |
# |
# Page flip handler |
# Page flip handler |
# |
# |
# (Page Handler |
# $Id$ |
# |
# |
# (TeX Content Handler |
# Copyright Michigan State University Board of Trustees |
# |
# |
# 05/29/00,05/30 Gerd Kortemeyer) |
# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
# 08/30,08/31,09/06,09/14,09/15,09/16,09/19,09/20,09/21,09/23, |
# |
# 10/02 Gerd Kortemeyer) |
# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
# |
# |
# 10/03 Gerd Kortemeyer |
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package Apache::lonpageflip; |
package Apache::lonpageflip; |
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use strict; |
use strict; |
use Apache::Constants qw(:common :http); |
use LONCAPA; |
use Apache::lonnet(); |
use Apache::Constants qw(:common :http REDIRECT); |
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use Apache::lonnet; |
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use Apache::loncommon(); |
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use Apache::lonnavmaps(); |
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use Apache::lonuserstate; |
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use Apache::lonlocal; |
use HTML::TokeParser; |
use HTML::TokeParser; |
use GDBM_File; |
use GDBM_File; |
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# -------------------------------------------------------------- Module Globals |
# ========================================================== Module Global Hash |
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my %hash; |
my %hash; |
my @rows; |
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# ------------------------------------------------------------------ Euclid gcd |
sub cleanup { |
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if (tied(%hash)){ |
sub euclid { |
&Apache::lonnet::logthis('Cleanup pageflip: hash'); |
my ($e,$f)=@_; |
unless (untie(%hash)) { |
my $a; my $b; my $r; |
&Apache::lonnet::logthis('Failed cleanup pageflip: hash'); |
if ($e>$f) { $b=$e; $r=$f; } else { $r=$e; $b=$f; } |
} |
while ($r!=0) { |
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$a=$b; $b=$r; |
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$r=$a%$b; |
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} |
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return $b; |
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} |
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# ------------------------------------------------------------ Build page table |
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sub tracetable { |
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my ($sofar,$rid,$beenhere)=@_; |
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my $further=$sofar; |
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unless ($beenhere=~/\&$rid\&/) { |
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$beenhere.=$rid.'&'; |
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if (defined($hash{'is_map_'.$rid})) { |
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if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && |
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(defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { |
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my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; |
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$sofar= |
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&tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}}, |
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'&'.$frid.'&'); |
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$sofar++; |
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if ($hash{'src_'.$frid}) { |
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my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid}); |
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if (($brepriv eq '2') || ($brepriv eq 'F')) { |
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if (defined($rows[$sofar])) { |
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$rows[$sofar].='&'.$frid; |
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} else { |
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$rows[$sofar]=$frid; |
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} |
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} |
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} |
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} |
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} else { |
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$sofar++; |
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if ($hash{'src_'.$rid}) { |
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my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid}); |
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if (($brepriv eq '2') || ($brepriv eq 'F')) { |
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if (defined($rows[$sofar])) { |
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$rows[$sofar].='&'.$rid; |
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} else { |
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$rows[$sofar]=$rid; |
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} |
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} |
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} |
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} |
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if (defined($hash{'to_'.$rid})) { |
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map { |
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my $now=&tracetable($sofar,$hash{'goesto_'.$_},$beenhere); |
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if ($now>$further) { $further=$now; } |
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} split(/\,/,$hash{'to_'.$rid}); |
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} |
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} |
} |
return $further; |
return OK; |
} |
} |
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# ================================================================ Main Handler |
sub addrid { |
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my ($current,$new,$condid)=@_; |
sub handler { |
unless ($condid) { $condid=0; } |
my $r=shift; |
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if ($current) { |
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$current.=','.$new; |
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} else { |
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$current=''.$new; |
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} |
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# ------------------------------------------- Set document type for header only |
return $current; |
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} |
# if ($r->headers_only) { |
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$r->content_type('text/html'); |
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$r->send_http_header; |
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# return OK; |
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# } |
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sub fullmove { |
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my ($rid,$mapurl,$direction)=@_; |
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if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db', |
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&GDBM_READER(),0640)) { |
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($rid,$mapurl)=&move($rid,$mapurl,$direction); |
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untie(%hash); |
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} |
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return($rid,$mapurl); |
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} |
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sub hash_src { |
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my ($id)=@_; |
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my ($mapid,$resid)=split(/\./,$id); |
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my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid}, |
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$resid,$hash{'src_'.$id}); |
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my $anchor; |
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if ($hash{'ext_'.$id} eq 'true:') { |
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if ($hash{'src_'.$id} =~ /(\#.+)$/) { |
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$anchor = $1; |
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} |
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} |
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if ($hash{'encrypted_'.$id}) { |
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return (&Apache::lonenc::encrypted($hash{'src_'.$id}), |
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&Apache::lonenc::encrypted($symb), |
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$hash{'encrypted_'.$id},$anchor); |
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} |
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return ($hash{'src_'.$id},$symb,$hash{'encrypted_'.$id},$anchor); |
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} |
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sub move { |
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my ($next,$endupmap,$direction,$firstres) = @_; |
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my $safecount=0; |
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my $allowed=0; |
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my $deeplinkonly=0; |
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my $deeplinkchecked; |
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my $deeplink_login_pc; |
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my $prev=$next; |
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my ($prevmapid)=split(/\./,$next); |
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do { |
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($next,$endupmap)=&get_next_possible_move($next,$endupmap,$direction); |
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my $url = $hash{'src_'.$next}; |
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my ($mapid,$resid)=split(/\./,$next); |
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my $symb = &Apache::lonnet::encode_symb($hash{'map_id_'.$mapid}, |
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$resid,$url); |
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if ($url eq '' || $symb eq '') { |
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$allowed = 0; |
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} else { |
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my $nodeeplinkcheck = 0; |
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if ($hash{'is_map_'.$next}) { |
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$nodeeplinkcheck = 1; |
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} |
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my $priv = &Apache::lonnet::allowed('bre',$url,$symb,'','','','',$nodeeplinkcheck); |
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$allowed = (($priv eq 'F') || ($priv eq '2') || ($priv eq 'A')); |
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} |
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$deeplinkonly = 0; |
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if ($hash{'deeplinkonly_'.$next}) { |
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my ($value,$level) = map { &unescape($_); } split(/:/,$hash{'deeplinkonly_'.$next}); |
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my ($state,$others,$listed,$scope,$protect) = split(/,/,$value); |
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unless (($state eq 'both') || ($hash{'is_map_'.$next})) { |
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if ($level eq 'resource') { |
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$deeplinkonly = 1; |
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} elsif ($level eq 'map') { |
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if ($scope eq 'rec') { |
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unless ($mapid == $prevmapid) { |
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unless ($deeplinkchecked) { |
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$deeplink_login_pc = &get_deeplink_login_pc(); |
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$deeplinkchecked = 1; |
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} |
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if ($deeplink_login_pc) { |
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my $poss_map_pc; |
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if ($hash{'is_map_'.$next}) { |
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$poss_map_pc = $hash{'map_pc_'.$url}; |
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} else { |
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$poss_map_pc = $hash{'map_pc_'.$hash{'map_id_'.$mapid}}; |
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} |
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unless ($deeplink_login_pc == $poss_map_pc) { |
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unless (grep(/^$deeplink_login_pc$/,split(/,/,$hash{'map_hierarchy_'.$poss_map_pc}))) { |
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$deeplinkonly = 1; |
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} |
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} |
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} else { |
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$deeplinkonly = 1; |
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} |
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} |
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} elsif ($mapid != $prevmapid) { |
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$deeplinkonly = 1; |
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} |
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} |
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} |
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} elsif (($hash{'deeplinkonly_'.$prev}) && (!$firstres)) { |
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my ($value,$level) = map { &unescape($_); } split(/:/,$hash{'deeplinkonly_'.$prev}); |
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my ($state,$others,$listed,$scope,$protect) = split(/,/,$value); |
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unless (($state eq 'both') || ($hash{'is_map_'.$prev})) { |
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if ($level eq 'resource') { |
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$deeplinkonly = 1; |
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} elsif ($level eq 'map') { |
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if ($scope eq 'rec') { |
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unless ($mapid == $prevmapid) { |
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unless ($deeplinkchecked) { |
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$deeplink_login_pc = &get_deeplink_login_pc(); |
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$deeplinkchecked = 1; |
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} |
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if ($deeplink_login_pc) { |
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my $poss_map_pc; |
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if ($hash{'is_map_'.$prev}) { |
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$poss_map_pc = $hash{'map_pc_'.$url}; |
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} else { |
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$poss_map_pc = $hash{'map_pc_'.$hash{'map_id_'.$mapid}}; |
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} |
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unless ($deeplink_login_pc == $poss_map_pc) { |
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unless (grep(/^$deeplink_login_pc$/,split(/,/,$hash{'map_hierarchy_'.$poss_map_pc}))) { |
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$deeplinkonly = 1; |
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} |
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} |
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} |
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} |
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} else { |
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if ($mapid != $prevmapid) { |
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$deeplinkonly = 1; |
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} |
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} |
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} |
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} |
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} |
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$safecount++; |
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} while ( ($next) |
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&& ($next!~/\,/) |
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&& ( |
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(!$hash{'src_'.$next}) |
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|| ( |
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(!$env{'request.role.adv'}) |
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&& (($hash{'randomout_'.$next}) |
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|| ($deeplinkonly) |
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|| ($hash{'deeplinkout_'.$next})) |
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) |
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|| (!$allowed) |
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) |
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&& ($safecount<10000)); |
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return ($next,$endupmap); |
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} |
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$r->print('<html><body>'.$ENV{'form.postdata'}.'</body></html>'); |
sub get_next_possible_move { |
return OK; |
my ($rid,$mapurl,$direction)=@_; |
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my $startoutrid=$rid; |
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my $next=''; |
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my $mincond=1; |
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my $posnext=''; |
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if ($direction eq 'forward') { |
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# --------------------------------------------------------------------- Forward |
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while ($hash{'type_'.$rid} eq 'finish') { |
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$rid=$hash{'ids_'.$hash{'map_id_'.(split(/\./,$rid))[0]}}; |
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} |
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foreach my $id (split(/\,/,$hash{'to_'.$rid})) { |
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my $condition= $hash{'conditions_'.$hash{'goesto_'.$id}}; |
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my $rescond = &Apache::lonnet::docondval($condition); |
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my $linkcond = &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$id}}); |
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my $thiscond = ($rescond<$linkcond)?$rescond:$linkcond; |
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if ($thiscond>=$mincond) { |
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if ($posnext) { |
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$posnext.=','.$id.':'.$thiscond; |
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} else { |
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$posnext=$id.':'.$thiscond; |
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} |
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if ($thiscond>$mincond) { $mincond=$thiscond; } |
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} |
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} |
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foreach my $id (split(/\,/,$posnext)) { |
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my ($linkid,$condval)=split(/\:/,$id); |
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if ($condval>=$mincond) { |
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$next=&addrid($next,$hash{'goesto_'.$linkid}, |
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$hash{'condid_'.$hash{'undercond_'.$linkid}}); |
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} |
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} |
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if ($hash{'is_map_'.$next}) { |
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# This jumps to the beginning of a new map (going down level) |
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if ( |
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$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'sequence') { |
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$mapurl=$hash{'src_'.$next}; |
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$next=$hash{'map_start_'.$hash{'src_'.$next}}; |
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} elsif ( |
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# This jumps back up from an empty sequence, to a page up one level |
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$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'page') { |
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$mapurl=$hash{'map_id_'.(split(/\./,$next))[0]}; |
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} |
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} elsif |
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((split(/\./,$startoutrid))[0]!=(split(/\./,$next))[0]) { |
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# This comes up from a map (coming up one level); |
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$mapurl=$hash{'map_id_'.(split(/\./,$next))[0]}; |
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} |
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} elsif ($direction eq 'back') { |
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# ------------------------------------------------------------------- Backwards |
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while ($hash{'type_'.$rid} eq 'start') { |
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$rid=$hash{'ids_'.$hash{'map_id_'.(split(/\./,$rid))[0]}}; |
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} |
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foreach my $id (split(/\,/,$hash{'from_'.$rid})) { |
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my $condition= $hash{'conditions_'.$hash{'comesfrom_'.$id}}; |
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my $rescond = &Apache::lonnet::docondval($condition); |
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my $linkcond = &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$id}}); |
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my $thiscond = ($rescond<$linkcond)?$rescond:$linkcond; |
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if ($thiscond>=$mincond) { |
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if ($posnext) { |
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$posnext.=','.$id.':'.$thiscond; |
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} else { |
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$posnext=$id.':'.$thiscond; |
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} |
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if ($thiscond>$mincond) { $mincond=$thiscond; } |
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} |
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} |
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foreach my $id (split(/\,/,$posnext)) { |
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my ($linkid,$condval)=split(/\:/,$id); |
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if ($condval>=$mincond) { |
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$next=&addrid($next,$hash{'comesfrom_'.$linkid}, |
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$hash{'condid_'.$hash{'undercond_'.$linkid}}); |
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} |
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} |
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if ($hash{'is_map_'.$next}) { |
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# This jumps to the end of a new map (going down one level) |
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if ( |
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$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'sequence') { |
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$mapurl=$hash{'src_'.$next}; |
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$next=$hash{'map_finish_'.$hash{'src_'.$next}}; |
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} elsif ( |
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$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$next}}} eq 'page') { |
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# This jumps back up from an empty sequence, to a page up one level |
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$mapurl=$hash{'map_id_'.(split(/\./,$next))[0]}; |
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} |
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} elsif |
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((split(/\./,$startoutrid))[0]!=(split(/\./,$next))[0]) { |
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# This comes back up from a map (going up one level); |
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$mapurl=$hash{'map_id_'.(split(/\./,$next))[0]}; |
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} |
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} |
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return ($next,$mapurl); |
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} |
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sub first_accessible_resource { |
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my $furl; |
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if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db', |
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&GDBM_READER(),0640)) { |
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$furl=$hash{'first_url'}; |
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my (%args,$url,$argstr); |
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if ($furl =~ m{^/enc/}) { |
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($url,$argstr) = split(/\?/,&Apache::lonenc::unencrypted($furl)); |
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} else { |
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($url,$argstr) = split(/\?/,$furl); |
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} |
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foreach my $pair (split(/\&/,$argstr)) { |
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my ($name,$value) = split(/=/,$pair); |
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$args{&unescape($name)} = &unescape($value); |
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} |
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my $priv = &Apache::lonnet::allowed('bre',$url,$args{'symb'}); |
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my $allowed = (($priv eq 'F') || ($priv eq '2') || ($priv eq 'A')); |
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if (!$allowed) { |
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# Wow, we cannot see this ... move forward to the next one that we can see |
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my ($newrid,$newmap)=&move($hash{'first_rid'},$hash{'first_mapurl'},'forward',1); |
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# Build the new URL |
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if ($newrid eq '') { |
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$furl = '/adm/navmaps'; |
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} else { |
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my ($newmapid,$newresid)=split(/\./,$newrid); |
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my $symb=&Apache::lonnet::encode_symb($newmap,$newresid,$hash{'src_'.$newrid}); |
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$furl=&add_get_param($hash{'src_'.$newrid},{ 'symb' => $symb }); |
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if ($hash{'encrypted_'.$newrid}) { |
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$furl=&Apache::lonenc::encrypted($furl); |
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} |
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} |
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} |
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untie(%hash); |
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return $furl; |
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} else { |
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return '/adm/navmaps'; |
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} |
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} |
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sub first_answerable_ressymb { |
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my $navmap = Apache::lonnavmaps::navmap->new; |
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return unless (ref($navmap)); |
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my $iterator = $navmap->getIterator(undef,undef,undef,1); |
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return unless (ref($iterator)); |
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my ($curRes,$result); |
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while ($curRes = $iterator->next()) { |
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if (ref($curRes) && $curRes->is_problem()) { |
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foreach my $part (@{$curRes->parts()}) { |
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if ($curRes->tries($part) < $curRes->maxtries($part)) { |
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$result = $curRes->link().'?symb='.$curRes->shown_symb(); |
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last; |
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} |
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} |
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} |
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} |
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if ($result) { |
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return $result; |
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} else { |
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return &first_accessible_resource(); |
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} |
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} |
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my $requrl=$r->uri; |
sub check_http_req { |
# ----------------------------------------------------------------- Tie db file |
my ($srcref,$hostname) = @_; |
if ($ENV{'request.course.fn'}) { |
return unless (ref($srcref) eq 'SCALAR'); |
my $fn=$ENV{'request.course.fn'}; |
my $usehttp; |
if (-e "$fn.db") { |
if ($env{'request.course.id'}) { |
if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER,0640)) { |
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; |
# ------------------------------------------------------------------- Hash tied |
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; |
my $firstres=$hash{'map_start_'.$requrl}; |
if (($$srcref =~ m{^\Q/public/$cdom/$cnum/syllabus\E($|\?)}) && |
my $lastres=$hash{'map_finish_'.$requrl}; |
($ENV{'SERVER_PORT'} == 443) && |
if (($firstres) && ($lastres)) { |
($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://})) { |
# ----------------------------------------------------------------- Render page |
unless ((&Apache::lonnet::uses_sts()) || |
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(&Apache::lonnet::waf_allssl($hostname))) { |
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$$srcref .= (($$srcref =~/\?/)? '&':'?') . 'usehttp=1'; |
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$usehttp = 1; |
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} |
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} elsif (($$srcref =~ m{^\Q/adm/wrapper/ext/\E(?!https:)}) && |
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($ENV{'SERVER_PORT'} == 443)) { |
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unless ((&Apache::lonnet::uses_sts()) || |
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(&Apache::lonnet::waf_allssl($hostname))) { |
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my ($url,$anchor) = ($$srcref =~ /^([^\#]+)(?:|(\#[^\#]+))$/); |
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$$srcref = $url . (($$srcref =~/\?/)? '&':'?') . 'usehttp=1' .$anchor; |
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$usehttp = 1; |
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} |
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} |
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} |
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return $usehttp; |
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} |
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@rows=(); |
sub reinited_js { |
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my ($url,$cid,$timeout) = @_; |
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if (!$timeout) { |
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$timeout = 0; |
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} |
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return <<"END"; |
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<script type="text/javascript"> |
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// <![CDATA[ |
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setTimeout(function() { |
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var newurl = '$url'; |
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if (document.getElementById('LC_update_$cid')) { |
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document.getElementById('LC_update_$cid').style.display = 'none'; |
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} |
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if ((newurl !== null) && (newurl !== '') && (newurl !== 'undefined')) { |
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window.location.href = "$url"; |
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} |
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}, $timeout); |
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// ]]> |
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</script> |
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END |
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} |
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&tracetable(0,$firstres,'&'.$lastres.'&'); |
sub get_deeplink_login_pc { |
if ($hash{'src_'.$lastres}) { |
my $deeplink_login_pc; |
my $brepriv= |
if (($env{'request.deeplink.login'}) && ($env{'request.course.id'})) { |
&Apache::lonnet::allowed('bre',$hash{'src_'.$lastres}); |
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; |
if (($brepriv eq '2') || ($brepriv eq 'F')) { |
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; |
$rows[$#rows+1]=''.$lastres; |
my $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom); |
} |
if ($deeplink_symb) { |
} |
my $loginmap; |
|
if ($deeplink_symb =~ /\.(page|sequence)$/) { |
|
$loginmap = &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($deeplink_symb))[2]); |
|
} else { |
|
$loginmap = &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($deeplink_symb))[0]); |
|
} |
|
$deeplink_login_pc = $hash{'map_pc_'.$loginmap}; |
|
} |
|
} |
|
return $deeplink_login_pc; |
|
} |
|
|
# ------------------------------------------------------------ Add to symb list |
# ================================================================ Main Handler |
|
|
my $i; |
sub handler { |
my %symbhash=(); |
my $r=shift; |
for ($i=0;$i<=$#rows;$i++) { |
|
if ($rows[$i]) { |
|
my @colcont=split(/\&/,$rows[$i]); |
|
map { |
|
$symbhash{$hash{'src_'.$_}}=''; |
|
} @colcont; |
|
} |
|
} |
|
&Apache::lonnet::symblist($requrl,%symbhash); |
|
|
|
# ------------------------------------------------------------------ Page parms |
# ------------------------------------------- Set document type for header only |
|
|
my $j; |
if ($r->header_only) { |
my $lcm=1; |
&Apache::loncommon::content_type($r,'text/html'); |
my $contents=0; |
$r->send_http_header; |
my $nforms=0; |
return OK; |
|
} |
my %ssibody=(); |
|
my %ssibgcolor=(); |
|
my %ssitext=(); |
|
my %ssilink=(); |
|
my %ssivlink=(); |
|
my %ssialink=(); |
|
my %cellemb=(); |
|
|
|
my $allscript=''; |
|
my $allmeta=''; |
|
|
|
my $isxml=0; |
|
my $xmlheader=''; |
|
my $xmlbody=''; |
|
|
|
# --------------------------------------------- Get SSI output, post parameters |
|
|
|
for ($i=0;$i<=$#rows;$i++) { |
|
if ($rows[$i]) { |
|
$contents++; |
|
my @colcont=split(/\&/,$rows[$i]); |
|
$lcm*=($#colcont+1)/euclid($lcm,($#colcont+1)); |
|
map { |
|
my $src=$hash{'src_'.$_}; |
|
$src=~/\.(\w+)$/; |
|
$cellemb{$_}=Apache::lonnet::fileembstyle($1); |
|
if ($cellemb{$_} eq 'ssi') { |
|
# --------------------------------------------------------- This is an SSI cell |
|
my $prefix=$_.'_'; |
|
my %posthash=('request.prefix' => $prefix); |
|
if (($ENV{'form.'.$prefix.'submit'}) |
|
|| ($ENV{'form.all_submit'})) { |
|
map { |
|
if ($_=~/^form.$prefix/) { |
|
my $name=$_; |
|
$name=~s/^form.$prefix//; |
|
$posthash{$name}=$ENV{$_}; |
|
} |
|
} keys %ENV; |
|
} |
|
my $output=Apache::lonnet::ssi($src,%posthash); |
|
my $parser=HTML::TokeParser->new(\$output); |
|
my $token; |
|
my $bodydef=0; |
|
my $thisxml=0; |
|
if ($output=~/\?xml/) { |
|
$isxml=1; |
|
$thisxml=1; |
|
$output=~ |
|
/((?:\<(?:\?xml|\!DOC|html)[^\>]*(?:\>|\>\]\>)\s*)+)\<body[^\>]*\>/si; |
|
$xmlheader=$1; |
|
} |
|
while (($bodydef==0) && |
|
($token=$parser->get_token)) { |
|
if ($token->[1] eq 'body') { |
|
$bodydef=1; |
|
$ssibgcolor{$_}=$token->[2]->{'bgcolor'}; |
|
$ssitext{$_}=$token->[2]->{'text'}; |
|
$ssilink{$_}=$token->[2]->{'link'}; |
|
$ssivlink{$_}=$token->[2]->{'vlink'}; |
|
$ssialink{$_}=$token->[2]->{'alink'}; |
|
if ($thisxml) { |
|
$xmlbody=$token->[4]; |
|
} |
|
} |
|
if ($token->[1] eq 'meta') { |
|
$allmeta.="\n".$token->[4].'</meta>'; |
|
} |
|
if ($token->[1] eq 'script') { |
|
$allscript.="\n\n" |
|
.$parser->get_text('/script'); |
|
} |
|
} |
|
if ($output=~/\<body[^\>]*\>(.*)/si) { |
|
$output=$1; |
|
} |
|
$output=~s/\<\/body\>.*//si; |
|
if ($output=~/\<form/si) { |
|
$nforms++; |
|
$output=~s/\<form[^\>]*\>//gsi; |
|
$output=~s/\<\/form[^\>]*\>//gsi; |
|
} |
|
$ssibody{$_}=$output; |
|
|
|
# ---------------------------------------------------------------- End SSI cell |
my %cachehash=(); |
} |
my $multichoice=0; |
} @colcont; |
my %multichoicehash=(); |
} |
my %prog_state=(); |
|
my ($redirecturl,$redirectsymb,$enc,$anchor,$deeplinklevel); |
|
my $next=''; |
|
my $hostname = $r->hostname(); |
|
my @possibilities=(); |
|
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['postdata']); |
|
if (($env{'form.postdata'})&&($env{'request.course.fn'})) { |
|
my ($direction,$currenturl) = ($env{'form.postdata'}=~/(\w+)\:(.*)/); |
|
if ($currenturl=~m|^/enc/|) { |
|
$currenturl=&Apache::lonenc::unencrypted($currenturl); |
|
} |
|
$currenturl=~s/\.\d+\.(\w+)$/\.$1/; |
|
$currenturl=~s/^https?\:\/\///; |
|
$currenturl=~s/^[^\/]+//; |
|
my ($preupdatepos,$last,$reinitcheck); |
|
if ($direction eq 'return') { |
|
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
|
&GDBM_READER(),0640)) { |
|
$last=$hash{'last_known'}; |
|
untie(%hash); |
|
} |
|
} elsif ($direction eq 'firstanswerable') { |
|
my $furl = &first_answerable_ressymb(); |
|
my $usehttp = &check_http_req(\$furl,$hostname); |
|
if (($usehttp) && ($hostname ne '')) { |
|
$furl='http://'.$hostname.$furl; |
|
} else { |
|
$furl=&Apache::lonnet::absolute_url().$furl; |
|
} |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->header_out(Location => $furl); |
|
return REDIRECT; |
|
} elsif ($direction eq 'endplacement') { |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->send_http_header; |
|
$r->print(&Apache::lonplacementtest::showresult()); |
|
return OK; |
|
} |
|
if ($env{'request.course.id'}) { |
|
# Check if course needs to be re-initialized |
|
my $loncaparev = $r->dir_config('lonVersion'); |
|
($reinitcheck,my @reinit) = &Apache::loncommon::needs_coursereinit($loncaparev); |
|
if ($reinitcheck eq 'switch') { |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->send_http_header; |
|
$r->print(&Apache::loncommon::check_release_result(@reinit)); |
|
return OK; |
|
} |
|
my ($cnum,$cdom); |
|
if ($reinitcheck) { |
|
$cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; |
|
$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; |
|
} |
|
if (($reinitcheck eq 'main') || ($reinitcheck eq 'both')) { |
|
$preupdatepos = &Apache::lonnet::symbread($currenturl); |
|
unless ($direction eq 'return') { |
|
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
|
&GDBM_READER(),0640)) { |
|
$last=$hash{'last_known'}; |
|
untie(%hash); |
} |
} |
unless ($contents) { |
} |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
$r->print('<html><body>Empty page.</body></html>'); |
$r->print(&Apache::loncommon::start_page('Content Changed')); |
} else { |
my $preamble = '<div id="LC_update_'.$env{'request.course.id'}.'" class="LC_info">'. |
# ------------------------------------------------------------------ Build page |
'<br />'. |
|
&mt('Your course session is being updated because of recent changes by course personnel.'). |
|
' '.&mt('Please be patient').'.<br /></div>'. |
|
'<div style="padding:0;clear:both;margin:0;border:0"></div>'; |
|
%prog_state = &Apache::lonhtmlcommon::Create_PrgWin($r,undef,$preamble); |
|
&Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Updating course')); |
|
my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum"); |
|
&Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Finished!')); |
|
if ($ferr) { |
|
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
|
my $requrl = $r->uri; |
|
$env{'user.error.msg'}="$requrl:bre:0:0:Course not initialized"; |
|
$env{'user.reinit'} = 1; |
|
return HTTP_NOT_ACCEPTABLE; |
|
} else { |
|
if ($last) { |
|
my ($murl,$id,$fn)=&Apache::lonnet::decode_symb($last); |
|
unless (&Apache::lonnet::symbverify($last,$fn)) { |
|
undef($last); |
|
} |
|
} |
|
} |
|
} |
|
if (($reinitcheck eq 'both') || ($reinitcheck eq 'supp')) { |
|
my $possdel; |
|
if ($reinitcheck eq 'supp') { |
|
$possdel = 1; |
|
} |
|
my ($supplemental,$refs_updated) = &Apache::loncommon::get_supplemental($cnum,$cdom,'',$possdel); |
|
unless ($refs_updated) { |
|
&Apache::loncommon::set_supp_httprefs($cnum,$cdom,$supplemental); |
|
} |
|
} |
|
} |
|
if ($direction eq 'firstres') { |
|
my $furl=&first_accessible_resource(); |
|
my $usehttp = &check_http_req(\$furl,$hostname); |
|
if (($usehttp) && ($hostname ne '')) { |
|
$furl='http://'.$hostname.$furl; |
|
} else { |
|
$furl=&Apache::lonnet::absolute_url().$furl; |
|
} |
|
if (($reinitcheck eq 'main') || ($reinitcheck eq 'both')) { |
|
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
|
$r->print(&reinited_js($furl,$env{'request.course.id'},100)); |
|
$r->print(&Apache::loncommon::end_page()); |
|
return OK; |
|
} else { |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->header_out(Location => $furl); |
|
return REDIRECT; |
|
} |
|
} |
|
if ($direction eq 'return') { |
|
# -------------------------------------------------------- Return to last known |
|
my ($newloc,$usehttp); |
|
if (($last) && (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db', |
|
&GDBM_READER(),0640))) { |
|
my ($murl,$id,$fn)=&Apache::lonnet::decode_symb($last); |
|
$id=$hash{'map_pc_'.&Apache::lonnet::clutter($murl)}.'.'.$id; |
|
$newloc=$hash{'src_'.$id}; |
|
if ($newloc) { |
|
$usehttp = &check_http_req(\$newloc,$hostname); |
|
if ($hash{'encrypted_'.$id}) { |
|
$newloc=&Apache::lonenc::encrypted($newloc); |
|
} |
|
if ($newloc =~ m{^(/adm/wrapper/ext/[^\#]+)(?:|(\#[^\#]+))$}) { |
|
my ($url,$anchor) = ($1,$2); |
|
if ($anchor) { |
|
$newloc = $url.(($url=~/\?/)?'&':'?').'symb='.&escape($last).$anchor; |
|
} |
|
} |
|
} else { |
|
$newloc='/adm/navmaps'; |
|
} |
|
untie %hash; |
|
} else { |
|
$newloc='/adm/navmaps'; |
|
} |
|
if (($usehttp) && ($hostname ne '')) { |
|
$newloc='http://'.$hostname.$newloc; |
|
} else { |
|
$newloc=&Apache::lonnet::absolute_url().$newloc |
|
} |
|
if (($reinitcheck eq 'main') || ($reinitcheck eq 'both')) { |
|
$r->print(&reinited_js($newloc,$env{'request.course.id'},100)); |
|
$r->print(&Apache::loncommon::end_page()); |
|
return OK; |
|
} else { |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->header_out(Location => $newloc); |
|
return REDIRECT; |
|
} |
|
} |
|
# |
|
# Is the current URL on the map? If not, start with last known URL |
|
# |
|
|
# ---------------------------------------------------------------- Send headers |
unless (&Apache::lonnet::is_on_map($currenturl)) { |
if ($isxml) { |
if ($preupdatepos) { |
$r->content_type('text/xml'); |
undef($preupdatepos); |
$r->send_http_header; |
} elsif (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
$r->print($xmlheader); |
&GDBM_READER(),0640)) { |
} else { |
$last=$hash{'last_known'}; |
$r->content_type('text/html'); |
untie(%hash); |
$r->send_http_header; |
} |
$r->print('<html>'); |
if ($last) { |
} |
$currenturl=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($last))[2]); |
# ------------------------------------------------------------------------ Head |
} else { |
$r->print("\n<head>\n".$allmeta); |
my $newloc = &Apache::lonnet::absolute_url(). |
if ($allscript) { |
'/adm/navmaps'; |
$r->print("\n<script>\n".$allscript."\n</script>\n"); |
if (($reinitcheck eq 'main') || ($reinitcheck eq 'both')) { |
|
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
|
$r->print(&reinited_js($newloc,$env{'request.course.id'},100)); |
|
$r->print(&Apache::loncommon::end_page()); |
|
return OK; |
|
} else { |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->header_out(Location => $newloc); |
|
return REDIRECT; |
|
} |
|
} |
|
} |
|
# ------------------------------------------- Do we have any idea where we are? |
|
my $position; |
|
if ($preupdatepos) { |
|
$position = $preupdatepos; |
|
} else { |
|
$position=Apache::lonnet::symbread($currenturl); |
|
} |
|
if ($position) { |
|
# ------------------------------------------------------------------------- Yes |
|
my ($startoutmap,$mapnum,$thisurl)=&Apache::lonnet::decode_symb($position); |
|
$cachehash{$startoutmap}{$thisurl}=[$thisurl,$mapnum]; |
|
$cachehash{$startoutmap}{'last_known'}= |
|
[&Apache::lonnet::declutter($currenturl),$mapnum]; |
|
|
|
# ============================================================ Tie the big hash |
|
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db', |
|
&GDBM_READER(),0640)) { |
|
my $rid=$hash{'map_pc_'.&Apache::lonnet::clutter($startoutmap)}. |
|
'.'.$mapnum; |
|
|
|
# ------------------------------------------------- Move forward, backward, etc |
|
my $endupmap; |
|
($next,$endupmap)=&move($rid,$startoutmap,$direction); |
|
# -------------------------------------- Do we have one and only one empty URL? |
|
# We are now at at least one non-empty URL |
|
# ----------------------------------------------------- Check out possibilities |
|
if ($next) { |
|
@possibilities=split(/\,/,$next); |
|
if ($#possibilities==0) { |
|
# ---------------------------------------------- Only one possibility, redirect |
|
($redirecturl,$redirectsymb,$enc,$anchor)=&hash_src($next); |
|
$cachehash{$endupmap}{$redirecturl}= |
|
[$redirecturl,(split(/\./,$next))[1]]; |
|
} else { |
|
# ------------------------ There are multiple possibilities for a next resource |
|
$multichoice=1; |
|
foreach my $id (@possibilities) { |
|
$multichoicehash{'src_'.$id}=$hash{'src_'.$id}; |
|
$multichoicehash{'title_'.$id}=$hash{'title_'.$id}; |
|
$multichoicehash{'type_'.$id}=$hash{'type_'.$id}; |
|
(my $first, my $second) = $id =~ /(\d+).(\d+)/; |
|
my $symbSrc = Apache::lonnet::declutter($hash{'src_'.$id}); |
|
$multichoicehash{'symb_'.$id} = |
|
Apache::lonnet::declutter($hash{'map_id_'.$first}.'___'. |
|
$second.'___'.$symbSrc); |
|
|
|
my ($choicemap,$choiceres)=split(/\./,$id); |
|
my $map=&Apache::lonnet::declutter($hash{'src_'.$choicemap}); |
|
my $url=$multichoicehash{'src_'.$id}; |
|
$cachehash{$map}{$url}=[$url,$choiceres]; |
} |
} |
$r->print("\n</head>\n"); |
} |
# ------------------------------------------------------------------ Start body |
} else { |
if ($isxml) { |
# -------------------------------------------------------------- No place to go |
$r->print($xmlbody); |
$multichoice=-1; |
|
if ($position && $env{'request.deeplink.login'}) { |
|
my ($map,$resid,$url) = &Apache::lonnet::decode_symb($position); |
|
my $mapid = $hash{'map_pc_'.&Apache::lonnet::clutter($map)}; |
|
my $position_deeplink = $hash{'deeplinkonly_'.$mapid.'.'.$resid}; |
|
if ($position_deeplink) { |
|
(my $value,$deeplinklevel) = map { &unescape($_); } |
|
split(/:/,$position_deeplink); |
|
} |
|
} |
|
} |
|
# ----------------- The program must come past this point to untie the big hash |
|
untie(%hash); |
|
# --------------------------------------------------------- Store position info |
|
$cachehash{$startoutmap}{'last_direction'}=[$direction,'notasymb']; |
|
foreach my $thismap (keys(%cachehash)) { |
|
my $mapnum=$cachehash{$thismap}->{'mapnum'}; |
|
delete($cachehash{$thismap}->{'mapnum'}); |
|
&Apache::lonnet::symblist($thismap, |
|
%{$cachehash{$thismap}}); |
|
} |
|
# ============================================== Do not return before this line |
|
if ($redirecturl) { |
|
# ----------------------------------------------------- There is a URL to go to |
|
if ($direction eq 'forward') { |
|
&Apache::lonnet::linklog($currenturl,$redirecturl); |
|
} |
|
if ($direction eq 'back') { |
|
&Apache::lonnet::linklog($redirecturl,$currenturl); |
|
} |
|
# ------------------------------------- Check for and display critical messages |
|
my ($redirect, $url) = &Apache::loncommon::critical_redirect(300,'flip'); |
|
unless ($redirect) { |
|
my $usehttp = &check_http_req(\$redirecturl,$hostname); |
|
if (($usehttp) && ($hostname ne '')) { |
|
$url='http://'.$hostname.$redirecturl; |
} else { |
} else { |
$r->print('<body bgcolor="#FFFFFF">'); |
$url=&Apache::lonnet::absolute_url().$redirecturl; |
} |
} |
# ------------------------------------------------------------------ Start form |
my $addanchor; |
if ($nforms) { |
if (($anchor ne '') && (!$enc || $env{'request.role.adv'})) { |
$r->print('<form method="post" action="'. |
$addanchor = 1; |
$requrl.'">'); |
$url =~ s/\#.+$//; |
} |
} |
# ----------------------------------------------------------------- Start table |
$url = &add_get_param($url, { 'symb' => $redirectsymb}); |
$r->print('<table cols="'.$lcm.'" border="0">'); |
if ($addanchor) { |
for ($i=0;$i<=$#rows;$i++) { |
$url .= $anchor; |
if ($rows[$i]) { |
} |
$r->print("\n<tr>"); |
} |
my @colcont=split(/\&/,$rows[$i]); |
if (($reinitcheck eq 'main') || ($reinitcheck eq 'both')) { |
my $avespan=$lcm/($#colcont+1); |
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
for ($j=0;$j<=$#colcont;$j++) { |
$r->print(&reinited_js($url,$env{'request.course.id'},100)); |
my $rid=$colcont[$j]; |
$r->print(&Apache::loncommon::end_page()); |
$r->print('<td colspan="'.$avespan.'"'); |
return OK; |
if ($cellemb{$rid} eq 'ssi') { |
} else { |
if ($ssibgcolor{$rid}) { |
&Apache::loncommon::content_type($r,'text/html'); |
$r->print(' bgcolor="'. |
$r->header_out(Location => $url); |
$ssibgcolor{$rid}.'"'); |
return REDIRECT; |
} |
} |
$r->print('><font'); |
} else { |
if ($ssitext{$rid}) { |
# --------------------------------------------------------- There was a problem |
$r->print(' text="'.$ssitext{$rid}.'"'); |
&Apache::loncommon::content_type($r,'text/html'); |
} |
$r->send_http_header; |
if ($ssilink{$rid}) { |
my %lt=&Apache::lonlocal::texthash('title' => 'End of Sequence', |
$r->print(' link="'.$ssilink{$rid}.'"'); |
'deeplink' => 'No link available', |
} |
'deeplinkres' => |
if ($ssitext{$rid}) { |
'Navigation to other content is unavailable when accessing content via deep-linking', |
$r->print(' vlink="'.$ssivlink{$rid}.'"'); |
'deeplinkmap' => |
} |
'You have reached the end of the sequence of available materials for access via deep-linking', |
if ($ssialink{$rid}) { |
'explain' => |
$r->print(' alink="'.$ssialink{$rid}.'"'); |
'You have reached the end of the sequence of materials.', |
} |
'back' => 'Go Back', |
|
'nav' => 'Course Contents', |
$r->print('>'.$ssibody{$rid}.'</font>'); |
'wherenext' => |
} elsif ($cellemb{$rid} eq 'img') { |
'There are several possibilities of where to go next', |
$r->print('><img src="'. |
'pick' => |
$hash{'src_'.$rid}.'"></img>'); |
'Please click on the the resource you intend to access', |
} |
'titleheader' => 'Title', |
$r->print('</td>'); |
'type' => 'Type', |
|
'update' => 'Content updated', |
|
'expupdate' => 'As a result of a recent update to the sequence of materials, it is not possible to complete the page flip.', |
|
'gonav' => 'Go to the Contents page to select a resource to display.', |
|
); |
|
if (&Apache::loncommon::course_type() eq 'Community') { |
|
$lt{'nav'} = &mt('Community Contents'); |
|
} |
|
if ($#possibilities>0) { |
|
my $start_page= |
|
&Apache::loncommon::start_page('Multiple Resources'); |
|
$r->print(<<ENDSTART); |
|
$start_page |
|
<h3>$lt{'wherenext'}</h3> |
|
<p> |
|
$lt{'pick'}: |
|
<p> |
|
<table border="2"> |
|
<tr><th>$lt{'titleheader'}</th><th>$lt{'type'}</th></tr> |
|
ENDSTART |
|
foreach my $id (@possibilities) { |
|
my $src = $multichoicehash{'src_'.$id}; |
|
my $usehttp = &check_http_req(\$src,$hostname); |
|
if (($usehttp) && ($hostname ne '')) { |
|
$src = 'http://'.$hostname.$src; |
|
} |
|
$r->print( |
|
'<tr><td><a href="'. |
|
&add_get_param($src, |
|
{'symb' => |
|
$multichoicehash{'symb_'.$id}, |
|
}).'">'. |
|
$multichoicehash{'title_'.$id}. |
|
'</a></td><td>'.$multichoicehash{'type_'.$id}. |
|
'</td></tr>'); |
|
} |
|
$r->print('</table>'); |
|
} else { |
|
if ($reinitcheck) { |
|
if (&Apache::loncommon::course_type() eq 'Community') { |
|
$r->print( |
|
&Apache::loncommon::start_page('Community Contents Updated')); |
|
} else { |
|
$r->print( |
|
&Apache::loncommon::start_page('Course Contents Updated')); |
|
} |
|
$r->print('<h2>'.$lt{'update'}.'</h2>' |
|
.'<p>'.$lt{'expupdate'}.'<br />' |
|
.$lt{'gonav'}.'</p>'); |
|
} else { |
|
if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') && |
|
(!$env{'request.role.adv'})) { |
|
my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1); |
|
if ($incomplete) { |
|
$r->print(&Apache::lonplacementtest::showincomplete($incomplete)); |
|
} else { |
|
$r->print(&Apache::lonplacementtest::showresult(1)); |
|
} |
|
} else { |
|
$r->print( |
|
&Apache::loncommon::start_page('No Resource')); |
|
if ($deeplinklevel eq 'resource') { |
|
$r->print('<h2>'.$lt{'deeplink'}.'</h2>' |
|
.'<p>'.$lt{'deeplinkres'}.'</p>'); |
|
} elsif ($deeplinklevel eq 'map') { |
|
$r->print('<h2>'.$lt{'title'}.'</h2>' |
|
.'<p>'.$lt{'deeplinkmap'}.'</p>'); |
|
} else { |
|
$r->print('<h2>'.$lt{'title'}.'</h2>' |
|
.'<p>'.$lt{'explain'}.'</p>'); |
|
} |
} |
} |
$r->print('</tr>'); |
|
} |
|
} |
} |
$r->print("\n</table>"); |
} |
# ---------------------------------------------------------------- Submit, etc. |
unless (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') && |
if ($nforms) { |
(!$env{'request.role.adv'})) { |
|
if ($deeplinklevel) { |
|
$r->print( |
|
&Apache::lonhtmlcommon::actionbox( |
|
['<a href="/adm/flip?postdata=return:">'.$lt{'back'}.'</a>'])); |
|
} elsif ((!@possibilities) && ($reinitcheck)) { |
|
$r->print( |
|
&Apache::lonhtmlcommon::actionbox( |
|
['<a href="/adm/navmaps">'.$lt{'nav'}.'</a></li>' |
|
])); |
|
} else { |
$r->print( |
$r->print( |
'<input name="all_submit" value="Submit All" type="'. |
&Apache::lonhtmlcommon::actionbox( |
(($nforms>1)?'submit':'hidden').'"></input></form>'); |
['<a href="/adm/flip?postdata=return:">'.$lt{'back'}.'</a></li>', |
|
'<a href="/adm/navmaps">'.$lt{'nav'}.'</a></li>' |
|
])); |
} |
} |
$r->print('</body></html>'); |
|
# -------------------------------------------------------------------- End page |
} |
} |
$r->print(&Apache::loncommon::end_page()); |
# ------------------------------------------------------------- End render page |
|
} else { |
return OK; |
$r->content_type('text/html'); |
} |
$r->send_http_header; |
} else { |
$r->print('<html><body>Page undefined.</body></html>'); |
# ------------------------------------------------- Problem, could not tie hash |
} |
if (($reinitcheck eq 'main') || ($reinitcheck eq 'both')) { |
# ------------------------------------------------------------------ Untie hash |
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
unless (untie(%hash)) { |
$r->print(&Apache::loncommon::end_page()); |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
} |
"Could not untie coursemap $fn (browse).</font>"); |
$env{'user.error.msg'}="/adm/flip:bre:0:1:Course Data Missing"; |
} |
return HTTP_NOT_ACCEPTABLE; |
# -------------------------------------------------------------------- All done |
|
return OK; |
|
# ----------------------------------------------- Errors, hash could no be tied |
|
} |
} |
} |
} else { |
} |
# ---------------------------------------- No, could not determine where we are |
$ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized"; |
my $newloc = '/adm/ambiguous'; |
return HTTP_NOT_ACCEPTABLE; |
if (($reinitcheck eq 'main') || ($reinitcheck eq 'both')) { |
|
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
|
$r->print(&reinited_js($newloc,$env{'request.course.id'},100)); |
|
$r->print(&Apache::loncommon::end_page()); |
|
} else { |
|
$r->internal_redirect($newloc); |
|
} |
|
return OK; |
|
} |
|
} else { |
|
# -------------------------- Class was not initialized or page fliped strangely |
|
$env{'user.error.msg'}="/adm/flip:bre:0:0:Choose Course"; |
|
return HTTP_NOT_ACCEPTABLE; |
|
} |
} |
} |
|
|
1; |
1; |
__END__ |
__END__ |
|
|
|
=pod |
|
|
|
=head1 NAME |
|
|
|
Apache::lonpageflip |
|
|
|
=head1 SYNOPSIS |
|
|
|
Deals with forward, backward, and other page flips. |
|
|
|
This is part of the LearningOnline Network with CAPA project |
|
described at http://www.lon-capa.org. |
|
|
|
=head1 OVERVIEW |
|
|
|
(empty) |
|
|
|
=head1 SUBROUTINES |
|
|
|
=over cleanup() |
|
|
|
=item addrid() |
|
|
|
=item fullmove() |
|
|
|
=item hash_src() |
|
|
|
=item move() |
|
|
|
=item get_next_possible_move() |
|
|
|
=item first_accessible_resource() |
|
|
|
=item handler() |
|
|
|
=back |
|
|
|
=cut |
|
|
|
|
|
|