version 1.2, 2001/05/01 15:23:40
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version 1.10, 2002/05/11 23:23:01
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# Edit Handler for RAT Maps |
# Edit Handler for RAT Maps |
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# |
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# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# 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/ |
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# |
# (TeX Content Handler |
# (TeX Content Handler |
# |
# |
# 05/29/00,05/30 Gerd Kortemeyer) |
# 05/29/00,05/30 Gerd Kortemeyer) |
# 7/1 Gerd Kortemeyer |
# 7/1,6/30 Gerd Kortemeyer |
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package Apache::lonratedt; |
package Apache::lonratedt; |
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use strict; |
use strict; |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
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use Apache::lonnet; |
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use Apache::lonratsrv; |
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# ================================================================ Main Handler |
my @order=(); |
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my @resources=(); |
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sub handler { |
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my $r=shift; |
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$r->content_type('text/html'); |
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$r->send_http_header; |
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return OK if $r->header_only; |
# Mapread read maps into global arrays @links and @resources, determines status |
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# sets @order - pointer to resources in right order |
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# sets @resources - array with the resources with correct idx |
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# |
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sub mapread { |
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my $fn=shift; |
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my $url=$r->uri; |
my @links; |
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undef @links; |
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undef @resources; |
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undef @order; |
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my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,''); |
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if ($errtext) { return ($errtext,2); } |
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# -------------------------------------------------------------------- Read map |
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foreach (split(/\<\&\>/,$outtext)) { |
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my ($command,$number,$content)=split(/\<\:\>/,$_); |
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if ($command eq 'objcont') { |
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$resources[$number]=$content; |
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} |
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if ($command eq 'objlinks') { |
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$links[$number]=$content; |
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} |
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} |
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# ------------------------------------------------------- Is this a linear map? |
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my @starters=(); |
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my @endings=(); |
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undef @starters; |
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undef @endings; |
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foreach (@links) { |
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if (defined($_)) { |
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my ($start,$end,$cond)=split(/\:/,$_); |
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if ((defined($starters[$start])) || (defined($endings[$end]))) { |
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return |
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('Map has branchings. Use advanced editor.',1); |
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} |
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$starters[$start]=1; |
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$endings[$end]=1; |
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if ($cond) { |
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return |
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('Map has conditions. Use advanced editor.',1); |
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} |
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} |
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} |
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for (my $i=0; $i<=$#resources; $i++) { |
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if (defined($resources[$i])) { |
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unless (($starters[$i]) || ($endings[$i])) { |
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return |
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('Map has unconnected resources. Use advanced editor.',1); |
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} |
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} |
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} |
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# -------------------------------------------------- This is a linear map, sort |
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my $startidx=0; |
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my $endidx=0; |
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for (my $i=0; $i<=$#resources; $i++) { |
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if (defined($resources[$i])) { |
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my ($title,$url,$ext,$type)=split(/\:/,$resources[$i]); |
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if ($type eq 'start') { $startidx=$i; } |
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if ($type eq 'finish') { $endidx=$i; } |
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} |
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} |
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my $k=0; |
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my $currentidx=$startidx; |
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$order[$k]=$currentidx; |
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for (my $i=0; $i<=$#resources; $i++) { |
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foreach (@links) { |
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my ($start,$end)=split(/\:/,$_); |
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if ($start==$currentidx) { |
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$currentidx=$end; |
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$k++; |
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$order[$k]=$currentidx; |
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last; |
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} |
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} |
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if ($currentidx==$endidx) { last; } |
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} |
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return $errtext; |
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} |
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# --------------------------------------------------------- Build up RAT screen |
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sub ratedt { |
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my ($r,$url)=@_; |
$r->print(<<ENDDOCUMENT); |
$r->print(<<ENDDOCUMENT); |
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<html> |
<html> |
Line 37 sub handler {
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Line 145 sub handler {
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</html> |
</html> |
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ENDDOCUMENT |
ENDDOCUMENT |
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} |
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# ---------------------------------------------------------------- Make buttons |
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sub buttons { |
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my $adv=shift; |
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my $output='<form method=post>'; |
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if ($adv==1) { |
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$output.='<input type=submit name=forceadv value="Edit">'; |
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} else { |
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unless ($adv==2) { |
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$output.='<input type=submit name=forcesmp value="Simple Edit">'; |
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} |
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$output.='<input type=submit name=forceadv value="Advanced Edit">'; |
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} |
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return $output.'</form><hr>'; |
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} |
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sub smpedt { |
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my ($r,$errtext)=@_; |
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my $buttons=&buttons(2); |
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# ----------------------------------------------------- Start simple RAT screen |
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$r->print(<<ENDSMPHEAD); |
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<html> |
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<head> |
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<script> |
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var srch; |
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var srchflag=-1; // 1 means currently open |
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// 0 means closed (but has been open) |
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// -1 means never yet opened/defined |
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var srchmode=''; |
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var idx; |
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var idxflag=-1; // 1 means currently open |
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// 0 means closed (but has been open) |
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// -1 means never yet opened/defined |
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var idxmode=''; |
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// ------------------------------------------------------ Clears indexer window |
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function idxclear() { |
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idx.document.clear(); |
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} |
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// ------------------------------------------------------- Clears search window |
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function srchclear() { |
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srch.document.clear(); |
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} |
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// ------------------------------------------------------ Closes indexer window |
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function idxclose() { |
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if (idx && !idx.closed) { |
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idxflag=0; |
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idx.close(); |
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} |
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} |
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// ------------------------------------------------------- Closes search window |
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function srchclose() { |
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if (srch && !srch.closed) { |
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srchflag=0; |
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srch.close(); |
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} |
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} |
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// -------------------------------------------------------- Open indexer window |
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function idxopen(mode) { |
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var options="scrollbars=1,resizable=1,menubar=0"; |
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idxmode=mode; |
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idxflag=1; |
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idx=open("/res/?launch=1&mode=simple&catalogmode="+mode,"idxout",options); |
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idx.focus(); |
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} |
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// --------------------------------------------------------- Open search window |
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function srchopen(mode) { |
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var options="scrollbars=1,resizable=1,menubar=0"; |
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srchmode=mode; |
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srchflag=1; |
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srch=open("/adm/searchcat?launch=1&mode=simple&catalogmode="+mode,"srchout",options); |
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srch.focus(); |
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} |
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// ----------------------------------------------------- launch indexer browser |
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function groupsearch() { |
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srchcheck('groupsearch'); |
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} |
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function groupimport() { |
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idxcheck('groupimport'); |
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} |
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// ------------------------------------------------------- Do srch status check |
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function srchcheck(mode) { |
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if (!srch || srch.closed || srchmode!=mode) { |
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srchopen(mode); |
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} |
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srch.focus(); |
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} |
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// -------------------------------------------------------- Do idx status check |
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function idxcheck(mode) { |
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if (!idx || idx.closed || idxmode!=mode) { |
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idxopen(mode); |
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} |
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idx.focus(); |
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} |
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</script> |
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</head> |
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<body bgcolor='#FFFFFF'> |
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$buttons |
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<font color=red>$errtext</font> |
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<a href="javascript:groupsearch()">Group Search</a> |
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<a href="javascript:groupimport()">Group Import</a> |
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ENDSMPHEAD |
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$r->print( |
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'<input type=submit name=forcesmp value="Store"></form></body></html>'); |
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} |
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sub nodir { |
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my ($r,$dir)=@_; |
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$dir=~s/^\/home\/\w+\/public\_html//; |
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$r->print(<<ENDNODIR); |
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<html> |
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<body bgcolor='#FFFFFF'> |
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<h1>No such directory: $dir</h1> |
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</body> |
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</html> |
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ENDNODIR |
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} |
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# ---------------------------------------------------------------- View Handler |
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sub viewmap { |
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my ($r,$adv,$errtext)=@_; |
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$r->print('<html><body bgcolor="#FFFFFF">'.&buttons($adv)); |
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if ($errtext) { |
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$r->print($errtext.'<hr>'); |
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} |
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foreach (@resources) { |
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if (defined($_)) { |
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my ($title,$url)=split(/\:/,$_); |
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$title=~s/\&colon\;/\:/g; |
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$url=~s/\&colon\;/\:/g; |
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unless ($title) { $title='<i>Unknown</i>'; } |
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if ($url) { |
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$r->print('<a href="'.&Apache::lonratsrv::qtescape($url).'">'); |
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} |
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$r->print(&Apache::lonratsrv::qtescape($title)); |
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if ($url) { $r->print('</a>'); } |
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$r->print('<br>'); |
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} |
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} |
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$r->print('</body></html>'); |
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} |
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# ================================================================ Main Handler |
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sub handler { |
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my $r=shift; |
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$r->content_type('text/html'); |
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$r->send_http_header; |
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return OK if $r->header_only; |
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my $url=$r->uri; |
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my $fn=&Apache::lonnet::filelocation('',$url); |
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my ($dir)=($fn=~/^(.+)\/[^\/]+$/); |
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unless (-e $dir) { |
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&nodir($r,$dir); |
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return OK; |
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} |
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# ------------------------------------------- Determine which tools can be used |
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my $adv=0; |
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unless ($ENV{'form.forcesmp'}) { |
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if ($ENV{'form.forceadv'}) { |
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$adv=1; |
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} elsif (my $fh=Apache::File->new($fn)) { |
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my $allmap=join('',<$fh>); |
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$adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is); |
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} |
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} |
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my $errtext=''; |
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my $fatal=0; |
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# -------------------------------------------------------------------- Load map |
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($errtext,$fatal)=&mapread($fn,$errtext); |
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if ($fatal==1) { $adv=1; } |
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# ----------------------------------- adv==1 now means "graphical MUST be used" |
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if ($ENV{'form.forceadv'}) { |
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&ratedt($r,$url); |
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} elsif ($ENV{'form.forcesmp'}) { |
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&smpedt($r,$errtext); |
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} else { |
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&viewmap($r,$adv,$errtext); |
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} |
return OK; |
return OK; |
} |
} |
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