--- rat/lonratedt.pm 2001/06/30 14:05:57 1.4
+++ rat/lonratedt.pm 2002/05/15 19:50:37 1.17
@@ -1,5 +1,30 @@
# The LearningOnline Network with CAPA
# Edit Handler for RAT Maps
+#
+# $Id: lonratedt.pm,v 1.17 2002/05/15 19:50:37 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 +35,207 @@ package Apache::lonratedt;
use strict;
use Apache::Constants qw(:common);
use Apache::lonnet;
+use Apache::lonratsrv;
+
+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 $fn=shift;
+
+ my @links;
+ undef @links;
+ undef @resources;
+ undef @order;
+
+ my ($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]=$content;
+ }
+ }
+# ------------------------------------------------------- Is this a linear map?
+ my @starters=();
+ my @endings=();
+ undef @starters;
+ undef @endings;
+
+ foreach (@links) {
+ if (defined($_)) {
+ 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=0; $i<=$#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
+
+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 +258,336 @@ sub ratedt {
ENDDOCUMENT
}
+# ---------------------------------------------------------------- Make buttons
+
+sub buttons {
+ my $adv=shift;
+ my $output='<form method=post>';
+ if ($adv==1) {
+ $output.='<input type=submit name=forceadv value="Edit">';
+ } else {
+ unless ($adv==2) {
+ $output.='<input type=submit name=forcesmp value="Simple Edit">';
+ }
+ $output.='<input type=submit name=forceadv value="Advanced Edit">';
+ }
+ return $output.'</form><hr>';
+}
+
sub smpedt {
- my ($r,$fn)=@_;
+ my ($r,$errtext)=@_;
+ my $buttons=&buttons(2);
+
+# ---------------------------------------------------------- Process form input
+
+ my @importselect=();
+ my @targetselect=();
+ undef @importselect;
+ undef @targetselect;
+ if (defined($ENV{'form.import'})) {
+ if (ref($ENV{'form.import'})) {
+ @importselect=sort($ENV->{'form.import'});
+ } else {
+ @importselect=($ENV{'form.import'});
+ }
+ }
+ if (defined($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) {
+ $importdetail.='&'.&Apache::lonnet::escape($name).'='.
+ &Apache::lonnet::escape($url);
+ }
+ }
+
+ $importdetail.='&'.$ENV{'form.importdetail'};
+
+ for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
+ my ($name,$url)=split(/\=/,$curimport[$i]);
+ if ($url) {
+ $importdetail.='&'.&Apache::lonnet::escape($name).'='.
+ &Apache::lonnet::escape($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) {
+ $importdetail.='&'.&Apache::lonnet::escape($name).'='.
+ &Apache::lonnet::escape($url);
+ }
+ }
+# --------------------------------------------------------- Loading another map
+ } elsif ($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) {
+ $importdetail.='&'.&Apache::lonnet::escape($name).'='.
+ &Apache::lonnet::escape($url);
+ }
+ }
+
+ foreach (
+ &attemptread(&Apache::lonnet::filelocation('',$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) {
+ $importdetail.='&'.&Apache::lonnet::escape($name).'='.
+ &Apache::lonnet::escape($url);
+ }
+ }
+ $importdetail=~s/\&+/\&/g;
+ $importdetail=~s/^\&//;
+
+# ------------------------------------
+ }
+
+# ------------------------------------------------------------ Assemble windows
+
+ my $idx=-1;
+ my $importwindow=join("\n",map {
+ $idx++;
+ if ($_) {
+ my ($name,$url)=split(/\=/,$_);
+ unless ($name) { $name=(split(/\//,$url))[-1]; }
+ unless ($name) { $name='EMPTY'; }
+ '<option value="'.$idx.'">'.&Apache::lonnet::unescape($name).
+ '</option>';
+ }
+ } split(/\&/,$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);
+ $idx++;
+ '<option value="'.$idx.'_'.$_.'">'.$name.'</option>';
+ } @order);
+
+# ----------------------------------------------------- Start simple RAT screen
$r->print(<<ENDSMPHEAD);
<html>
+<head>
+<script>
+var srch;
+var srchflag=-1; // 1 means currently open
+ // 0 means closed (but has been open)
+ // -1 means never yet opened/defined
+var srchmode='';
+
+var idx;
+var idxflag=-1; // 1 means currently open
+ // 0 means closed (but has been open)
+ // -1 means never yet opened/defined
+var idxmode='';
+
+// ------------------------------------------------------ Clears indexer window
+function idxclear() {
+ idx.document.clear();
+}
+
+// ------------------------------------------------------- Clears search window
+function srchclear() {
+ srch.document.clear();
+}
+
+// ------------------------------------------------------ Closes indexer window
+function idxclose() {
+ if (idx && !idx.closed) {
+ idxflag=0;
+ idx.close();
+ }
+}
+
+// ------------------------------------------------------- Closes search window
+function srchclose() {
+ if (srch && !srch.closed) {
+ srchflag=0;
+ srch.close();
+ }
+}
+
+// -------------------------------------------------------- Open indexer window
+function idxopen(mode) {
+ var options="scrollbars=1,resizable=1,menubar=0";
+ idxmode=mode;
+ idxflag=1;
+ idx=open("/res/?launch=1&mode=simple&catalogmode="+mode,"idxout",options);
+ idx.focus();
+}
+
+// --------------------------------------------------------- Open search window
+function srchopen(mode) {
+ var options="scrollbars=1,resizable=1,menubar=0";
+ srchmode=mode;
+ srchflag=1;
+ srch=open("/adm/searchcat?launch=1&mode=simple&catalogmode="+mode,"srchout",options);
+ srch.focus();
+}
+// ----------------------------------------------------- launch indexer browser
+function groupsearch() {
+ srchcheck('groupsearch');
+}
+
+function groupimport() {
+ idxcheck('groupimport');
+}
+// ------------------------------------------------------- Do srch status check
+function srchcheck(mode) {
+ if (!srch || srch.closed || srchmode!=mode) {
+ srchopen(mode);
+ }
+ srch.focus();
+}
+
+// -------------------------------------------------------- Do idx status check
+function idxcheck(mode) {
+ if (!idx || idx.closed || idxmode!=mode) {
+ idxopen(mode);
+ }
+ idx.focus();
+}
+
+
+ var editbrowser;
+ function openbrowser(formname,elementname,only,omit) {
+ var url = '/res/?';
+ if (editbrowser == null) {
+ url += 'launch=1&';
+ }
+ url += 'catalogmode=interactive&';
+ url += 'mode=edit&';
+ url += 'form=' + formname + '&';
+ if (only != null) {
+ url += 'only=' + only + '&';
+ }
+ if (omit != null) {
+ url += 'omit=' + omit + '&';
+ }
+ url += 'element=' + elementname + '';
+ var title = 'Browser';
+ var options = 'scrollbars=1,resizable=1,menubar=0';
+ options += ',width=700,height=600';
+ editbrowser = open(url,title,options,'1');
+ editbrowser.focus();
+ }
+</script>
+</head>
<body bgcolor='#FFFFFF'>
-<form method=post>
-<input type=submit name=forceadv
-value="Advanced Map Editing - Resource Assembly Tool"><hr>
+$buttons
+<font color=red>$errtext</font>
+<form name=simpleedit method=post>
+<input type=hidden name=forcesmp value=1>
+<table>
+ <tr><th width="40%">Import</th>
+<th> </th>
+<th width="40%">Target</th></tr>
+<tr><td bgcolor="#FFFFCC">
+<input type=button onClick="javascript:groupsearch()" value="Group Search">
+<input type=button onClick="javascript:groupimport();" value="Group Import">
+after selected
+<hr>
+<input type=text size=20 name=importmap>
+<input type=button
+onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
+value="Browse"><input type=submit name=loadmap value="Load Map"><hr>
+<input type=submit name="discard" value="Discard Selected">
+<input type=submit name="clear" value="Clear All">
+<input type=button onClick="javascript:viewimport()" value="View">
+
+ </td><td> </td><td bgcolor="#FFFFCC">
+
+<input type=button onClick=
+"javascript:impfortarget.value=1;groupsearch()" value="Group Search">
+<input type=button onClick=
+"javascript:impfortarget.value=1;groupimport();" value="Group Import">
+after selected
+<hr><input type=button onClick="javascript:viewtarget()" value="View">
+</td></tr>
+
+<tr><td bgcolor="#FFFFCC"><select name="import" multiple>
+$importwindow
+</select>
+</td>
+<td bgcolor="#FFFFAA" align="center">
+Cut selected<br>
+<input type=submit name=cut value='<<<'><p>
+<hr>
+Paste after selected<br>
+<input type=submit name=paste value='>>>'>
+</td>
+<td bgcolor="#FFFFCC"><select name="target" multiple>
+$targetwindow
+</select>
+</table>
+<input type=hidden name=importdetail value="">
+<input type=hidden name=curimpdetail value="$importdetail">
+<input type=hidden name=targetdetail value="$targetdetail">
+<input type=hidden name=impfortarget value="0">
+</form>
+</body></html>
ENDSMPHEAD
- $r->print(
- '<input type=submit name=forcesmp value="Store"></form></body></html>');
}
+# ----------------------------------------------------------------- No such dir
sub nodir {
my ($r,$dir)=@_;
$dir=~s/^\/home\/\w+\/public\_html//;
@@ -57,6 +600,32 @@ sub nodir {
ENDNODIR
}
+# ---------------------------------------------------------------- View Handler
+
+sub viewmap {
+ my ($r,$url,$adv,$errtext)=@_;
+ $r->print('<html><body bgcolor="#FFFFFF">'.&buttons($adv));
+ if ($errtext) {
+ $r->print($errtext.'<hr>');
+ }
+ foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) {
+ if (defined($_)) {
+ my ($title,$url)=split(/\:/,$_);
+ $title=~s/\&colon\;/\:/g;
+ $url=~s/\&colon\;/\:/g;
+ unless ($title) { $title=(split(/\//,$url))[-1] };
+ unless ($title) { $title='<i>Empty</i>'; }
+ if ($url) {
+ $r->print('<a href="'.&Apache::lonratsrv::qtescape($url).'">');
+ }
+ $r->print(&Apache::lonratsrv::qtescape($title));
+ if ($url) { $r->print('</a>'); }
+ $r->print('<br>');
+ }
+ }
+ $r->print('</body></html>');
+}
+
# ================================================================ Main Handler
sub handler {
@@ -74,6 +643,8 @@ sub handler {
&nodir($r,$dir);
return OK;
}
+
+# ------------------------------------------- Determine which tools can be used
my $adv=0;
unless ($ENV{'form.forcesmp'}) {
@@ -85,10 +656,22 @@ sub handler {
}
}
- if ($adv) {
+ my $errtext='';
+ my $fatal=0;
+
+# -------------------------------------------------------------------- Load map
+ ($errtext,$fatal)=&mapread($fn,$errtext);
+
+ if ($fatal==1) { $adv=1; }
+
+# ----------------------------------- adv==1 now means "graphical MUST be used"
+
+ if ($ENV{'form.forceadv'}) {
&ratedt($r,$url);
+ } elsif ($ENV{'form.forcesmp'}) {
+ &smpedt($r,$errtext);
} else {
- &smpedt($r,$fn);
+ &viewmap($r,$url,$adv,$errtext);
}
return OK;
}