--- rat/lonratedt.pm 2001/06/30 14:05:57 1.4
+++ rat/lonratedt.pm 2002/06/24 14:12:04 1.31
@@ -1,5 +1,30 @@
# The LearningOnline Network with CAPA
# Edit Handler for RAT Maps
+#
+# $Id: lonratedt.pm,v 1.31 2002/06/24 14:12:04 www Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
# (TeX Content Handler
#
# 05/29/00,05/30 Gerd Kortemeyer)
@@ -10,6 +35,215 @@ package Apache::lonratedt;
use strict;
use Apache::Constants qw(:common);
use Apache::lonnet;
+use Apache::lonratsrv;
+use Apache::lonsequence;
+
+my @order;
+my @resources;
+
+
+# Mapread read maps into global arrays @links and @resources, determines status
+# sets @order - pointer to resources in right order
+# sets @resources - array with the resources with correct idx
+#
+sub mapread {
+ my $fn=shift;
+
+ my @links;
+ undef @links;
+ undef @resources;
+ undef @order;
+ @resources=('');
+ @order=();
+
+ my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
+ if ($errtext) { return ($errtext,2); }
+
+# -------------------------------------------------------------------- Read map
+ foreach (split(/\<\&\>/,$outtext)) {
+ my ($command,$number,$content)=split(/\<\:\>/,$_);
+ if ($command eq 'objcont') {
+ $resources[$number]=$content;
+ }
+ if ($command eq 'objlinks') {
+ $links[$number]=$content;
+ }
+ if ($command eq 'objparms') {
+ return('Map has resource parameters. Use advanced editor.',1);
+ }
+ }
+# ------------------------------------------------------- Is this a linear map?
+ my @starters=();
+ my @endings=();
+ undef @starters;
+ undef @endings;
+
+ foreach (@links) {
+ if (defined($_)) {
+ my ($start,$end,$cond)=split(/\:/,$_);
+ if ((defined($starters[$start])) || (defined($endings[$end]))) {
+ return
+ ('Map has branchings. Use advanced editor.',1);
+ }
+ $starters[$start]=1;
+ $endings[$end]=1;
+ if ($cond) {
+ return
+ ('Map has conditions. Use advanced editor.',1);
+ }
+ }
+
+ }
+ for (my $i=1; $i<=$#resources; $i++) {
+ if (defined($resources[$i])) {
+ unless (($starters[$i]) || ($endings[$i])) {
+ return
+ ('Map has unconnected resources. Use advanced editor.',1);
+ }
+ }
+ }
+
+# -------------------------------------------------- This is a linear map, sort
+
+ my $startidx=0;
+ my $endidx=0;
+ for (my $i=0; $i<=$#resources; $i++) {
+ if (defined($resources[$i])) {
+ my ($title,$url,$ext,$type)=split(/\:/,$resources[$i]);
+ if ($type eq 'start') { $startidx=$i; }
+ if ($type eq 'finish') { $endidx=$i; }
+ }
+ }
+ my $k=0;
+ my $currentidx=$startidx;
+ $order[$k]=$currentidx;
+ for (my $i=0; $i<=$#resources; $i++) {
+ foreach (@links) {
+ my ($start,$end)=split(/\:/,$_);
+ if ($start==$currentidx) {
+ $currentidx=$end;
+ $k++;
+ $order[$k]=$currentidx;
+ last;
+ }
+ }
+ if ($currentidx==$endidx) { last; }
+ }
+ return $errtext;
+}
+
+# ---------------------------------------------- Read a map as well as possible
+# Also used by the sequence handler
+# Call lonsequence::attemptread to read from resource space
+#
+sub attemptread {
+ my $fn=shift;
+
+ my @links;
+ undef @links;
+ my @theseres;
+ undef @theseres;
+
+ my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
+ if ($errtext) { return @theseres }
+
+# -------------------------------------------------------------------- Read map
+ foreach (split(/\<\&\>/,$outtext)) {
+ my ($command,$number,$content)=split(/\<\:\>/,$_);
+ if ($command eq 'objcont') {
+ $theseres[$number]=$content;
+ }
+ if ($command eq 'objlinks') {
+ $links[$number]=$content;
+ }
+ }
+
+# --------------------------------------------------------------- Sort, sort of
+
+ my @objsort=();
+ undef @objsort;
+
+ my @data1=();
+ my @data2=();
+ undef @data1;
+ undef @data2;
+
+ my $k;
+ my $kj;
+ my $j;
+ my $ij;
+
+ for ($k=1;$k<=$#theseres;$k++) {
+ if (defined($theseres[$k])) {
+ $objsort[$#objsort+1]=$k;
+ }
+ }
+
+ for ($k=1;$k<=$#links;$k++) {
+ if (defined($links[$k])) {
+ @data1=split(/\:/,$links[$k]);
+ $kj=-1;
+ for (my $j=0;$j<=$#objsort;$j++) {
+ if ((split(/\:/,$objsort[$j]))[0]==$data1[0]) {
+ $kj=$j;
+ }
+ }
+ if ($kj!=-1) { $objsort[$kj].=':'.$data1[1]; }
+ }
+ }
+ for ($k=0;$k<=$#objsort;$k++) {
+ for ($j=0;$j<=$#objsort;$j++) {
+ if ($k!=$j) {
+ @data1=split(/\:/,$objsort[$k]);
+ @data2=split(/\:/,$objsort[$j]);
+ my $dol=$#data1+1;
+ my $dtl=$#data2+1;
+ if ($dol+$dtl<1000) {
+ for ($kj=1;$kj<$dol;$kj++) {
+ if ($data1[$kj]==$data2[0]) {
+ for ($ij=1;$ij<$dtl;$ij++) {
+ $data1[$#data1+1]=$data2[$ij];
+ }
+ }
+ }
+ for ($kj=1;$kj<$dtl;$kj++) {
+ if ($data2[$kj]==$data1[0]) {
+ for ($ij=1;$ij<$dol;$ij++) {
+ $data2[$#data2+1]=$data1[$ij];
+ }
+ }
+ }
+ $objsort[$k]=join(':',@data1);
+ $objsort[$j]=join(':',@data2);
+ }
+ }
+ }
+ }
+# ---------------------------------------------------------------- Now sort out
+
+ @objsort=sort {
+ my @data1=split(/\:/,$a);
+ my @data2=split(/\:/,$b);
+ my $rvalue=0;
+ my $k;
+ for ($k=1;$k<=$#data1;$k++) {
+ if ($data1[$k]==$data2[0]) { $rvalue--; }
+ }
+ for ($k=1;$k<=$#data2;$k++) {
+ if ($data2[$k]==$data1[0]) { $rvalue++; }
+ }
+ if ($rvalue==0) { $rvalue=$#data2-$#data1; }
+ $rvalue;
+ } @objsort;
+
+ my @outres=();
+ undef @outres;
+
+ for ($k=0;$k<=$#objsort;$k++) {
+ $outres[$k]=$theseres[(split(/\:/,$objsort[$k]))[0]];
+ }
+ return @outres;
+}
# --------------------------------------------------------- Build up RAT screen
sub ratedt {
@@ -32,19 +266,499 @@ sub ratedt {
ENDDOCUMENT
}
+# ---------------------------------------------------------------- Make buttons
+
+sub buttons {
+ my $adv=shift;
+ my $output='
';
+}
+
+# ----------------------------------------------------------- Paste into target
+# modifies @order, @resources
+
+sub pastetarget {
+ my ($after,@which)=@_;
+ my @insertorder=();
+ foreach (@which) {
+ if (defined($_)) {
+ my ($name,$url)=split(/\=/,$_);
+ $name=&Apache::lonnet::unescape($name);
+ $url=&Apache::lonnet::unescape($url);
+ if ($url) {
+ my $idx=$#resources+1;
+ $insertorder[$#insertorder+1]=$idx;
+ my $ext='false';
+ if ($url=~/^http\:\/\//) { $ext='true'; }
+ $url=~s/\:/\:/g;
+ $resources[$idx]=$name.':'.$url.':'.$ext.':normal:res';
+ }
+ }
+ }
+ my @oldorder=splice(@order,$after);
+ @order=(@order,@insertorder,@oldorder);
+}
+
+# ------------------------------------------------ Get start and finish correct
+# modifies @resources
+
+sub startfinish {
+ foreach (@order) {
+ my ($name,$url,$ext)=split(/\:/,$resources[$_]);
+ if ($url=~/http\&colon\:\/\//) { $ext='true'; }
+ $resources[$_]=$name.':'.$url.':'.$ext.':normal:res';
+ }
+ my ($name,$url,$ext)=split(/\:/,$resources[$order[0]]);
+ $resources[$order[0]]=$name.':'.$url.':'.$ext.':start:res';
+ my ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]);
+ $resources[$order[$#order]]=$name.':'.$url.':'.$ext.':finish:res';
+}
+
+# ------------------------------------------------------------------- Store map
+
+sub storemap {
+ my $fn=shift;
+ &startfinish();
+ my $output='graphdef<:>no';
+ my $k=1;
+ for (my $i=0; $i<=$#order; $i++) {
+ if (defined($resources[$order[$i]])) {
+ $output.='<&>objcont<:>'.$order[$i].'<:>'.$resources[$order[$i]];
+ }
+ if (defined($order[$i+1])) {
+ if (defined($resources[$order[$i+1]])) {
+ $output.='<&>objlinks<:>'.$k.'<:>'.
+ $order[$i].':'.$order[$i+1].':0';
+ $k++;
+ }
+ }
+ }
+ $output=~s/http\&colon\;\/\///g;
+ $ENV{'form.output'}=$output;
+ return
+ &Apache::lonratsrv::loadmap($fn,&Apache::lonratsrv::savemap($fn,''));
+}
+
+# ------------------------------------------------------- Simple edit processor
+
sub smpedt {
- my ($r,$fn)=@_;
+ my ($r,$url,$errtext)=@_;
+ my $buttons=&buttons(2);
+
+# ---------------------------------------------------------- Process form input
+
+ my @importselect=();
+ my @targetselect=();
+ undef @importselect;
+ undef @targetselect;
+ if (defined($ENV{'form.importsel'})) {
+ if (ref($ENV{'form.importsel'})) {
+ @importselect=sort(@{$ENV{'form.importsel'}});
+ } else {
+ @importselect=($ENV{'form.importsel'});
+ }
+ }
+ if (defined($ENV{'form.target'})) {
+ if (ref($ENV{'form.target'})) {
+ @targetselect=sort(@{$ENV{'form.target'}});
+ } else {
+ @targetselect=($ENV{'form.target'});
+ }
+ }
+# ============================================================ Process commands
+
+ my $targetdetail=$ENV{'form.targetdetail'};
+ my $importdetail=$ENV{'form.curimpdetail'};
+
+# ---------------------------------------------------- Importing from groupsort
+ if (($ENV{'form.importdetail'}) && (!$ENV{'form.impfortarget'})) {
+
+ $importdetail='';
+ my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
+
+ my $lastsel;
+
+ if (defined($importselect[-1])) {
+ $lastsel=$importselect[-1];
+ } else {
+ $lastsel=$#curimport;
+ }
+
+ for (my $i=0;$i<=$lastsel;$i++) {
+ my ($name,$url)=split(/\=/,$curimport[$i]);
+ if ($url) {
+ $importdetail.='&'.$name.'='.$url;
+ }
+ }
+
+ $importdetail.='&'.$ENV{'form.importdetail'};
+
+ for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
+ my ($name,$url)=split(/\=/,$curimport[$i]);
+ if ($url) {
+ $importdetail.='&'.$name.'='.$url;
+ }
+ }
+ $importdetail=~s/\&+/\&/g;
+ $importdetail=~s/^\&//;
+
+# ------------------------------------------------------------------- Clear all
+ } elsif ($ENV{'form.clear'}) {
+ $importdetail='';
+# ------------------------------------------------------------ Discard selected
+ } elsif ($ENV{'form.discard'}) {
+ $importdetail='';
+ my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
+ foreach (@importselect) {
+ $curimport[$_]='';
+ }
+ for (my $i=0;$i<=$#curimport;$i++) {
+ my ($name,$url)=split(/\=/,$curimport[$i]);
+ if ($url) {
+ $importdetail.='&'.$name.'='.$url;
+ }
+ }
+# --------------------------------------------------------- Loading another map
+ } elsif ($ENV{'form.loadmap'}) {
+ $importdetail='';
+ my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
+
+ my $lastsel;
+
+ if (defined($importselect[-1])) {
+ $lastsel=$importselect[-1];
+ } else {
+ $lastsel=$#curimport;
+ }
+
+ for (my $i=0;$i<=$lastsel;$i++) {
+ my ($name,$url)=split(/\=/,$curimport[$i]);
+ if ($url) {
+ $importdetail.='&'.$name.'='.$url;
+ }
+ }
+
+ foreach (
+ &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$ENV{'form.importmap'}))) {
+ my ($name,$url)=split(/\:/,$_);
+ if ($url) {
+ $importdetail.='&'.&Apache::lonnet::escape($name).'='.
+ &Apache::lonnet::escape($url);
+ }
+ }
+
+ for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
+ my ($name,$url)=split(/\=/,$curimport[$i]);
+ if ($url) {
+ $importdetail.='&'.$name.'='.$url;
+ }
+ }
+ $importdetail=~s/\&+/\&/g;
+ $importdetail=~s/^\&//;
+
+# ------------------------------------------------ Groupimport/search to target
+ } elsif ($ENV{'form.importdetail'}) {
+ my $lastsel;
+ if (defined($targetselect[-1])) {
+ $lastsel=$targetselect[-1];
+ } else {
+ $lastsel=$#order+1;
+ }
+ &pastetarget($lastsel,split(/\&/,$ENV{'form.importdetail'}));
+ &storemap(&Apache::lonnet::filelocation('',$url));
+# ------------------------------------------------------------------------- Cut
+ } elsif (($ENV{'form.cut'}) || ($ENV{'form.copy'})) {
+ $importdetail='';
+ my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
+
+ my $lastsel;
+
+ if (defined($importselect[-1])) {
+ $lastsel=$importselect[-1];
+ } else {
+ $lastsel=$#curimport;
+ }
+
+ for (my $i=0;$i<=$lastsel;$i++) {
+ my ($name,$url)=split(/\=/,$curimport[$i]);
+ if ($url) {
+ $importdetail.='&'.$name.'='.$url;
+ }
+ }
+
+ foreach (@targetselect) {
+ my ($name,$url)=split(/\:/,$resources[$order[$_-1]]);
+ if ($url) {
+ $importdetail.='&'.&Apache::lonnet::escape($name).'='.
+ &Apache::lonnet::escape($url);
+ }
+ }
+
+ for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
+ my ($name,$url)=split(/\=/,$curimport[$i]);
+ if ($url) {
+ $importdetail.='&'.$name.'='.$url;
+ }
+ }
+ $importdetail=~s/\&+/\&/g;
+ $importdetail=~s/^\&//;
+
+ if ($ENV{'form.cut'}) {
+ my @neworder=();
+ for (my $i=0;$i<=$#order;$i++) {
+ my $include=1;
+ foreach (@targetselect) {
+ if ($_-1==$i) { $include=0; }
+ }
+ if ($include) { $neworder[$#neworder+1]=$order[$i]; }
+ }
+ @order=@neworder;
+ &storemap(&Apache::lonnet::filelocation('',$url));
+ }
+
+# ----------------------------------------------------------------------- Paste
+ } elsif ($ENV{'form.paste'}) {
+ my $lastsel;
+ if (defined($targetselect[-1])) {
+ $lastsel=$targetselect[-1];
+ } else {
+ $lastsel=$#order+1;
+ }
+ my @newsequence;
+ my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
+ foreach (@importselect) {
+ $newsequence[$#newsequence+1]=$curimport[$_];
+ }
+ &pastetarget($lastsel,@newsequence);
+ &storemap(&Apache::lonnet::filelocation('',$url));
+# ------------------------------------------------
+ }
+# ------------------------------------------------------------ Assemble windows
+
+ my $idx=-1;
+ my $importwindow=
+ ''.
+ join("\n",map {
+ $idx++;
+ if ($_) {
+ my ($name,$url)=split(/\=/,$_);
+ unless ($name) { $name=(split(/\//,$url))[-1]; }
+ unless ($name) { $name='EMPTY'; }
+ '';
+ }
+ } split(/\&/,$importdetail));
+
+ $idx=0;
+ my $targetwindow=
+ ''.
+ join("\n",map {
+ my ($name,$url)=split(/\:/,$resources[$_]);
+ unless ($name) { $name=(split(/\//,$url))[-1]; }
+ unless ($name) { $name='EMPTY'; }
+ $targetdetail.='&'.&Apache::lonnet::escape($name).'='.
+ &Apache::lonnet::escape($url);
+ $idx++;
+ '';
+ } @order);
+
+# ----------------------------------------------------- Start simple RAT screen
$r->print(<
+
+
+
-
+