1: # The LearningOnline Network with CAPA
2: # Edit Handler for RAT Maps
3: #
4: # $Id: lonratedt.pm,v 1.56 2004/04/24 15:37:30 www Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29:
30: package Apache::lonratedt;
31:
32: =pod
33:
34: =head1 NAME
35:
36: Apache::lonratedt: advanced resource assembly tool
37:
38: =head1 SYNOPSIS
39:
40: lonratedt provides the routines and the handler for the Advanced
41: Resource Assembly Tool (RAT), and ties the various pieces together
42: with Javascript.
43:
44: =head1 OVERVIEW
45:
46: =head2 Map Representation
47:
48: =begin latex
49:
50: %
51: \begin{figure}
52: \begin{center}\includegraphics[%
53: width=0.55\paperwidth,bb = 0 0 200 100, draft, type=eps]{Map_Example}\end{center}
54:
55:
56: \caption{\label{Map_In_Advanced_Editor}Example of a Map in the Advanced Editor}
57: \end{figure}
58: %
59: \begin{figure}
60: \begin{lyxcode}
61: <map>
62:
63: ~~<resource~id=\char`\"{}1\char`\"{}
64:
65: ~~~~src=\char`\"{}/res/msu/korte/phy231welcome.html\char`\"{}
66:
67: ~~~~type=\char`\"{}start\char`\"{}
68:
69: ~~~~title=\char`\"{}Start\char`\"{}>
70:
71: ~~~~</resource>
72:
73: ~~<resource~id=\char`\"{}2\char`\"{}
74:
75: ~~~~src=\char`\"{}\char`\"{}~type=\char`\"{}finish\char`\"{}
76:
77: ~~~~title=\char`\"{}Finish\char`\"{}>
78:
79: ~~~~</resource>
80:
81: ~~<resource~id=\char`\"{}6\char`\"{}
82:
83: ~~~~src=\char`\"{}/res/msu/korte/tests/units.problem\char`\"{}
84:
85: ~~~~type=\char`\"{}mandatory\char`\"{}
86:
87: ~~~~title=\char`\"{}Physical~Units~Test\char`\"{}>
88:
89: ~~~~</resource>
90:
91: ~~<resource~id=\char`\"{}9\char`\"{}
92:
93: ~~~~src=\char`\"{}/res/msu/korte/chapters/onedim.sequence\char`\"{}
94:
95: ~~~~title=\char`\"{}Motion~in~One~Dimension\char`\"{}>
96:
97: ~~~~</resource>
98:
99: ~~<resource~id=\char`\"{}11\char`\"{}
100:
101: ~~~~src=\char`\"{}/res/msu/bauer/bridges/units.sequence\char`\"{}
102:
103: ~~~~title=\char`\"{}Physical~Units~Refresher\char`\"{}>
104:
105: ~~~~</resource>
106:
107: ~~<condition~id=\char`\"{}19\char`\"{}
108:
109: ~~~~type=\char`\"{}stop\char`\"{}
110:
111: ~~~~value=\char`\"{}user.assessments{[}this./res/msu/korte/tests/units.problem{]}.status=solved\char`\"{}>
112:
113: ~~~~</condition>
114:
115: ~~<link~from=\char`\"{}1\char`\"{}~to=\char`\"{}6\char`\"{}></link>
116:
117: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}9\char`\"{}~condition=\char`\"{}19\char`\"{}></link>
118:
119: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}11\char`\"{}></link>
120:
121: ~~<link~from=\char`\"{}11\char`\"{}~to=\char`\"{}6\char`\"{}></link>
122:
123: ~~</map>
124: \end{lyxcode}
125:
126: \caption{\label{XML}XML for Map in Figure \ref{Map_In_Advanced_Editor}}
127: \end{figure}
128:
129: =end latex
130:
131: Fig. "XML for Map in Figure" shows the XML representation of the
132: resource map shown in Fig. "Example of a Map in the Advanced Editor",
133: which is the format in which maps are stored. In the figure, however,
134: additional graphical map layout information generated by the Advanced
135: Resource Assembly Tool is not displayed. This graphical information is
136: optional to re-generate the same graphical layout when the map is
137: brought up again in the Resource Assembly Tool, and is not needed for
138: any other system functionality.
139:
140: Maps can be generated by tools other than the Resource Assembly
141: Tool. In particular, an author might have some other representation of
142: a course sequence, which can be converted into a map using scripts. If
143: this map then were to be brought up in the Resource Assembly Tool, the
144: Tool would automatically generate a graphical layout for it. Each
145: entry of the map (resources, conditions and links) is stored in a
146: separate tag.
147:
148: Resources and conditionsX<conditions> have to have unique ID
149: numbers. These numbers are automatically generated by the Resource
150: Assembly Tool when the entry is first created, or added to the entries
151: when a map generated outside the Resource Assembly Tool is first
152: retrieved. They can also be assigned by custom scripts or added in by
153: hand.
154:
155: In the XML example, entry 1 is the start resource of the map. When
156: this map is accessed, the source (src) URL of this tag will be the
157: first resource rendered. Entry 2 is the finish resource of this
158: map. This resource will be the last resource in the sequence of
159: resources. Entry 6 is a problem resource with the given URL and title,
160: as well as the priority "mandatory". Entry 19 is a condition, which is
161: used by the link between entries 6, the problem, and 9, a
162: sequence. I<The final syntax for conditions has not yet been
163: determined.>
164:
165: =cut
166:
167: use strict;
168: use Apache::Constants qw(:common);
169: use Apache::lonnet;
170: use Apache::lonratsrv;
171: use Apache::lonsequence;
172: use Apache::loncommon;
173: use Apache::lonlocal;
174: use File::Copy;
175:
176: use vars qw(@order @resources @resparms);
177:
178:
179: # Mapread read maps into global arrays @links and @resources, determines status
180: # sets @order - pointer to resources in right order
181: # sets @resources - array with the resources with correct idx
182: #
183: sub mapread {
184: my $fn=shift;
185:
186: my @links;
187: undef @links;
188: undef @resources;
189: undef @order;
190: @resources=('');
191: @order=();
192:
193: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
194: if ($errtext) { return ($errtext,2); }
195:
196: # -------------------------------------------------------------------- Read map
197: foreach (split(/\<\&\>/,$outtext)) {
198: my ($command,$number,$content)=split(/\<\:\>/,$_);
199: if ($command eq 'objcont') {
200: $resources[$number]=$content;
201: }
202: if ($command eq 'objlinks') {
203: $links[$number]=$content;
204: }
205: if ($command eq 'objparms') {
206: if ($resparms[$number]) {
207: $resparms[$number].='&&&'.$content;
208: } else {
209: $resparms[$number]=$content;
210: }
211: }
212: }
213: # ------------------------------------------------------- Is this a linear map?
214: my @starters=();
215: my @endings=();
216: undef @starters;
217: undef @endings;
218:
219: foreach (@links) {
220: if (defined($_)) {
221: my ($start,$end,$cond)=split(/\:/,$_);
222: if ((defined($starters[$start])) || (defined($endings[$end]))) {
223: return
224: (&mt('Map has branchings. Use advanced editor.'),1);
225: }
226: $starters[$start]=1;
227: $endings[$end]=1;
228: if ($cond) {
229: return
230: (&mt('Map has conditions. Use advanced editor.'),1);
231: }
232: }
233:
234: }
235: for (my $i=1; $i<=$#resources; $i++) {
236: if (defined($resources[$i])) {
237: unless (($starters[$i]) || ($endings[$i])) {
238: return
239: (&mt('Map has unconnected resources. Use advanced editor.'),1);
240: }
241: }
242: }
243: # ---------------------------------------------- Did we just read an empty map?
244: if ($#resources<1) {
245: undef $resources[0];
246: $resources[1]=':::start';
247: $resources[2]=':::finish';
248: }
249: # -------------------------------------------------- This is a linear map, sort
250:
251: my $startidx=0;
252: my $endidx=0;
253: for (my $i=0; $i<=$#resources; $i++) {
254: if (defined($resources[$i])) {
255: my ($title,$url,$ext,$type)=split(/\:/,$resources[$i]);
256: if ($type eq 'start') { $startidx=$i; }
257: if ($type eq 'finish') { $endidx=$i; }
258: }
259: }
260: my $k=0;
261: my $currentidx=$startidx;
262: $order[$k]=$currentidx;
263: for (my $i=0; $i<=$#resources; $i++) {
264: foreach (@links) {
265: my ($start,$end)=split(/\:/,$_);
266: if ($start==$currentidx) {
267: $currentidx=$end;
268: $k++;
269: $order[$k]=$currentidx;
270: last;
271: }
272: }
273: if ($currentidx==$endidx) { last; }
274: }
275: return $errtext;
276: }
277:
278: # ---------------------------------------------- Read a map as well as possible
279: # Also used by the sequence handler
280: # Call lonsequence::attemptread to read from resource space
281: #
282: sub attemptread {
283: my $fn=shift;
284:
285: my @links;
286: undef @links;
287: my @theseres;
288: undef @theseres;
289:
290: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
291: if ($errtext) { return @theseres }
292:
293: # -------------------------------------------------------------------- Read map
294: foreach (split(/\<\&\>/,$outtext)) {
295: my ($command,$number,$content)=split(/\<\:\>/,$_);
296: if ($command eq 'objcont') {
297: $theseres[$number]=$content;
298: }
299: if ($command eq 'objlinks') {
300: $links[$number]=$content;
301: }
302: }
303:
304: # --------------------------------------------------------------- Sort, sort of
305:
306: my @objsort=();
307: undef @objsort;
308:
309: my @data1=();
310: my @data2=();
311: undef @data1;
312: undef @data2;
313:
314: my $k;
315: my $kj;
316: my $j;
317: my $ij;
318:
319: for ($k=1;$k<=$#theseres;$k++) {
320: if (defined($theseres[$k])) {
321: $objsort[$#objsort+1]=$k;
322: }
323: }
324:
325: for ($k=1;$k<=$#links;$k++) {
326: if (defined($links[$k])) {
327: @data1=split(/\:/,$links[$k]);
328: $kj=-1;
329: for (my $j=0;$j<=$#objsort;$j++) {
330: if ((split(/\:/,$objsort[$j]))[0]==$data1[0]) {
331: $kj=$j;
332: }
333: }
334: if ($kj!=-1) { $objsort[$kj].=':'.$data1[1]; }
335: }
336: }
337: for ($k=0;$k<=$#objsort;$k++) {
338: for ($j=0;$j<=$#objsort;$j++) {
339: if ($k!=$j) {
340: @data1=split(/\:/,$objsort[$k]);
341: @data2=split(/\:/,$objsort[$j]);
342: my $dol=$#data1+1;
343: my $dtl=$#data2+1;
344: if ($dol+$dtl<1000) {
345: for ($kj=1;$kj<$dol;$kj++) {
346: if ($data1[$kj]==$data2[0]) {
347: for ($ij=1;$ij<$dtl;$ij++) {
348: $data1[$#data1+1]=$data2[$ij];
349: }
350: }
351: }
352: for ($kj=1;$kj<$dtl;$kj++) {
353: if ($data2[$kj]==$data1[0]) {
354: for ($ij=1;$ij<$dol;$ij++) {
355: $data2[$#data2+1]=$data1[$ij];
356: }
357: }
358: }
359: $objsort[$k]=join(':',@data1);
360: $objsort[$j]=join(':',@data2);
361: }
362: }
363: }
364: }
365: # ---------------------------------------------------------------- Now sort out
366:
367: @objsort=sort {
368: my @data1=split(/\:/,$a);
369: my @data2=split(/\:/,$b);
370: my $rvalue=0;
371: my $k;
372: for ($k=1;$k<=$#data1;$k++) {
373: if ($data1[$k]==$data2[0]) { $rvalue--; }
374: }
375: for ($k=1;$k<=$#data2;$k++) {
376: if ($data2[$k]==$data1[0]) { $rvalue++; }
377: }
378: if ($rvalue==0) { $rvalue=$#data2-$#data1; }
379: $rvalue;
380: } @objsort;
381:
382: my @outres=();
383: undef @outres;
384:
385: for ($k=0;$k<=$#objsort;$k++) {
386: $outres[$k]=$theseres[(split(/\:/,$objsort[$k]))[0]];
387: }
388: return @outres;
389: }
390:
391: # --------------------------------------------------------- Build up RAT screen
392: sub ratedt {
393: my ($r,$url)=@_;
394: $r->print(<<ENDDOCUMENT);
395:
396: <html>
397: <head>
398: <script language="JavaScript">
399: var flag=0;
400: </script>
401: </head>
402: <frameset rows="1,50,*" border=0>
403: <frame name=server src="$url/loadonly/ratserver" noresize noscroll>
404: <frame name=code src="/adm/rat/code.html">
405: <frame name=mapout src="/adm/rat/map.html">
406: </frameset>
407: </html>
408:
409: ENDDOCUMENT
410: }
411:
412: # ---------------------------------------------------------------- Make buttons
413:
414: sub buttons {
415: my $adv=shift;
416: my $output='<form method=post>';
417: if ($adv==1) {
418: $output.='<input type=submit name=forceadv value="'.&mt('Edit').'">'.
419: &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');;
420: } else {
421: unless ($adv==2) {
422: $output.='<input type=submit name=forcesmp value="'.&mt('Simple Edit').'">'.
423: &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation');
424: }
425: $output.='<input type=submit name=forceadv value="'.&mt('Advanced Edit').'">'.
426: &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');
427: }
428: return $output.'</form><hr>';
429: }
430:
431: # ----------------------------------------------------------- Paste into target
432: # modifies @order, @resources
433:
434: sub pastetarget {
435: my ($after,@which)=@_;
436: my @insertorder=();
437: foreach (@which) {
438: if (defined($_)) {
439: my ($name,$url)=split(/\=/,$_);
440: $name=&Apache::lonnet::unescape($name);
441: $url=&Apache::lonnet::unescape($url);
442: if ($url) {
443: my $idx=$#resources+1;
444: $insertorder[$#insertorder+1]=$idx;
445: my $ext='false';
446: if ($url=~/^http\:\/\//) { $ext='true'; }
447: $url=~s/\:/\:/g;
448: $name=~s/\:/\:/g;
449: $resources[$idx]=$name.':'.$url.':'.$ext.':normal:res';
450: }
451: }
452: }
453: my @oldorder=splice(@order,$after);
454: @order=(@order,@insertorder,@oldorder);
455: }
456:
457: # ------------------------------------------------ Get start and finish correct
458: # modifies @resources
459:
460: sub startfinish {
461: # Remove all start and finish
462: foreach (@order) {
463: my ($name,$url,$ext)=split(/\:/,$resources[$_]);
464: if ($url=~/http\&colon\:\/\//) { $ext='true'; }
465: $resources[$_]=$name.':'.$url.':'.$ext.':normal:res';
466: }
467: # Garbage collection
468: my $stillchange=1;
469: while (($#order>1) && ($stillchange)) {
470: $stillchange=0;
471: for (my $i=0;$i<=$#order;$i++) {
472: my ($name,$url,$ext)=split(/\:/,$resources[$order[$i]]);
473: unless ($url) {
474: # Take out empty resource
475: for (my $j=$i+1;$j<=$#order;$j++) {
476: $order[$j-1]=$order[$j];
477: }
478: $#order--;
479: $stillchange=1;
480: last;
481: }
482: }
483: }
484: # Put in a start resource
485: my ($name,$url,$ext)=split(/\:/,$resources[$order[0]]);
486: $resources[$order[0]]=$name.':'.$url.':'.$ext.':start:res';
487: # Make sure this has at least start and finish
488: if ($#order==0) {
489: $resources[$#resources+1]='::false';
490: $order[1]=$#resources;
491: }
492: # Make the last one a finish resource
493: ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]);
494: $resources[$order[$#order]]=$name.':'.$url.':'.$ext.':finish:res';
495: }
496:
497: # ------------------------------------------------------------------- Store map
498:
499: sub storemap {
500: my $realfn=shift;
501: my $fn=$realfn;
502: # unless this is forced to work from the original file, use a temporary file
503: # instead
504: unless (shift) {
505: $fn=$realfn.'.tmp';
506: unless (-e $fn) {
507: copy($realfn,$fn);
508: }
509: }
510: # store data either into tmp or real file
511: &startfinish();
512: my $output='graphdef<:>no';
513: my $k=1;
514: for (my $i=0; $i<=$#order; $i++) {
515: if (defined($resources[$order[$i]])) {
516: $output.='<&>objcont<:>'.$order[$i].'<:>'.$resources[$order[$i]];
517: }
518: if (defined($resparms[$order[$i]])) {
519: foreach (split('&&&',$resparms[$order[$i]])) {
520: if ($_) {
521: $output.='<&>objparms<:>'.$order[$i].'<:>'.$_;
522: }
523: }
524: }
525: if (defined($order[$i+1])) {
526: if (defined($resources[$order[$i+1]])) {
527: $output.='<&>objlinks<:>'.$k.'<:>'.
528: $order[$i].':'.$order[$i+1].':0';
529: $k++;
530: }
531: }
532: }
533: $output=~s/http\&colon\;\/\///g;
534: $ENV{'form.output'}=$output;
535: return
536: &Apache::lonratsrv::loadmap($fn,&Apache::lonratsrv::savemap($fn,''));
537: }
538:
539: # ------------------------------------------ Store and get parameters in global
540:
541: sub storeparameter {
542: my ($to,$name,$value,$ptype)=@_;
543: my $newentry='';
544: my $nametype='';
545: foreach (split('&&&',$resparms[$to])) {
546: my ($thistype,$thisname,$thisvalue)=split('___',$_);
547: if ($thisname) {
548: unless ($thisname eq $name) {
549: $newentry.=$_.'&&&';
550: } else {
551: $nametype=$thistype;
552: }
553: }
554: }
555: unless ($ptype) { $ptype=$nametype; }
556: unless ($ptype) { $ptype='string'; }
557: $newentry.=$ptype.'___'.$name.'___'.$value;
558: $resparms[$to]=$newentry;
559: }
560:
561: sub getparameter {
562: my ($to,$name);
563: my $value=undef;
564: my $ptype=undef;
565: foreach (split('&&&',$resparms[$to])) {
566: my ($thistype,$thisname,$thisvalue)=split('___',$_);
567: if ($thisname eq $name) {
568: $value=$thisvalue;
569: $ptype=$thistype;
570: }
571: }
572: return ($value,$ptype);
573: }
574:
575: # ----------------------------------------------------------------- Edit script
576: sub editscript {
577: my $mode=shift;
578: my $resurl=&Apache::loncommon::lastresurl();
579: return(<<ENDSCRIPT);
580: var srch;
581: var srchflag=-1; // 1 means currently open
582: // 0 means closed (but has been open)
583: // -1 means never yet opened/defined
584: var srchmode='';
585:
586: var idx;
587: var idxflag=-1; // 1 means currently open
588: // 0 means closed (but has been open)
589: // -1 means never yet opened/defined
590: var idxmode='';
591:
592: // ------------------------------------------------------ Clears indexer window
593: function idxclear() {
594: idx.document.clear();
595: }
596:
597: // ------------------------------------------------------- Clears search window
598: function srchclear() {
599: srch.document.clear();
600: }
601:
602: // ------------------------------------------------------ Closes indexer window
603: function idxclose() {
604: if (idx && !idx.closed) {
605: idxflag=0;
606: idx.close();
607: }
608: }
609:
610: // ------------------------------------------------------- Closes search window
611: function srchclose() {
612: if (srch && !srch.closed) {
613: srchflag=0;
614: srch.close();
615: }
616: }
617:
618: // -------------------------------------------------------- Open indexer window
619: function idxopen(mode) {
620: var options="scrollbars=1,resizable=1,menubar=0";
621: idxmode=mode;
622: idxflag=1;
623: idx=open("$resurl/?launch=1&mode=$mode&catalogmode="+mode,"idxout",options);
624: idx.focus();
625: }
626:
627: // --------------------------------------------------------- Open search window
628: function srchopen(mode) {
629: var options="scrollbars=1,resizable=1,menubar=0";
630: srchmode=mode;
631: srchflag=1;
632: srch=open("/adm/searchcat?launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
633: srch.focus();
634: }
635: // ----------------------------------------------------- launch indexer browser
636: function groupsearch() {
637: srchcheck('groupsearch');
638: }
639:
640: function groupimport() {
641: idxcheck('groupimport');
642: }
643: // ------------------------------------------------------- Do srch status check
644: function srchcheck(mode) {
645: if (!srch || srch.closed || srchmode!=mode) {
646: srchopen(mode);
647: }
648: srch.focus();
649: }
650:
651: // -------------------------------------------------------- Do idx status check
652: function idxcheck(mode) {
653: if (!idx || idx.closed || idxmode!=mode) {
654: idxopen(mode);
655: }
656: idx.focus();
657: }
658:
659:
660: var editbrowser;
661: function openbrowser(formname,elementname,only,omit) {
662: var url = '$resurl/?';
663: if (editbrowser == null) {
664: url += 'launch=1&';
665: }
666: url += 'catalogmode=interactive&';
667: url += 'mode=edit&';
668: url += 'form=' + formname + '&';
669: if (only != null) {
670: url += 'only=' + only + '&';
671: }
672: if (omit != null) {
673: url += 'omit=' + omit + '&';
674: }
675: url += 'element=' + elementname + '';
676: var title = 'Browser';
677: var options = 'scrollbars=1,resizable=1,menubar=0';
678: options += ',width=700,height=600';
679: editbrowser = open(url,title,options,'1');
680: editbrowser.focus();
681: }
682: ENDSCRIPT
683: }
684: # ------------------------------------------------------- Simple edit processor
685:
686: sub smpedt {
687: my ($r,$url,$errtext)=@_;
688: my $buttons=&buttons(2);
689: my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
690: my $targetmsg='';
691: if ($ENV{'form.save'}) {
692: $targetmsg='<b>Saving ...</b><br>';
693: copy($tmpfn,&Apache::lonnet::filelocation('',$url));
694: unlink($tmpfn);
695: my ($errtext,$fatal)=
696: &mapread(&Apache::lonnet::filelocation('',$url),'');
697: }
698: if ($ENV{'form.revert'}) {
699: $targetmsg='<b>Reverting ...</b><br>';
700: unlink($tmpfn);
701: my ($errtext,$fatal)=
702: &mapread(&Apache::lonnet::filelocation('',$url),'');
703: }
704: if (-e $tmpfn) {
705: $targetmsg=
706: '<b><font color="red">'.&mt('You are working with an unsaved version of your map.').'</font></b><br>';
707: my ($errtext,$fatal)=&mapread($tmpfn,'');
708: }
709: # ---------------------------------------------------------- Process form input
710:
711: my @importselect=();
712: my @targetselect=();
713: undef @importselect;
714: undef @targetselect;
715: if (defined($ENV{'form.importsel'})) {
716: if (ref($ENV{'form.importsel'})) {
717: @importselect=sort(@{$ENV{'form.importsel'}});
718: } else {
719: @importselect=($ENV{'form.importsel'});
720: }
721: }
722: if (defined($ENV{'form.target'})) {
723: if (ref($ENV{'form.target'})) {
724: @targetselect=sort(@{$ENV{'form.target'}});
725: } else {
726: @targetselect=($ENV{'form.target'});
727: }
728: }
729: # ============================================================ Process commands
730:
731: my $targetdetail=$ENV{'form.targetdetail'};
732: my $importdetail=$ENV{'form.curimpdetail'};
733:
734: # ---------------------------------------------------- Importing from groupsort
735: if (($ENV{'form.importdetail'}) && (!$ENV{'form.impfortarget'})) {
736:
737: $importdetail='';
738: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
739:
740: my $lastsel;
741:
742: if (defined($importselect[-1])) {
743: $lastsel=$importselect[-1];
744: } else {
745: $lastsel=$#curimport;
746: }
747:
748: for (my $i=0;$i<=$lastsel;$i++) {
749: my ($name,$url)=split(/\=/,$curimport[$i]);
750: if ($url) {
751: $importdetail.='&'.$name.'='.$url;
752: }
753: }
754:
755: $importdetail.='&'.$ENV{'form.importdetail'};
756:
757: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
758: my ($name,$url)=split(/\=/,$curimport[$i]);
759: if ($url) {
760: $importdetail.='&'.$name.'='.$url;
761: }
762: }
763: $importdetail=~s/\&+/\&/g;
764: $importdetail=~s/^\&//;
765:
766: # ------------------------------------------------------------------- Clear all
767: } elsif ($ENV{'form.clear'}) {
768: $importdetail='';
769: # ------------------------------------------------------------ Discard selected
770: } elsif ($ENV{'form.discard'}) {
771: $importdetail='';
772: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
773: foreach (@importselect) {
774: $curimport[$_]='';
775: }
776: for (my $i=0;$i<=$#curimport;$i++) {
777: my ($name,$url)=split(/\=/,$curimport[$i]);
778: if ($url) {
779: $importdetail.='&'.$name.'='.$url;
780: }
781: }
782: # --------------------------------------------------------- Loading another map
783: } elsif ($ENV{'form.loadmap'}) {
784: $importdetail='';
785: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
786:
787: my $lastsel;
788:
789: if (defined($importselect[-1])) {
790: $lastsel=$importselect[-1];
791: } else {
792: $lastsel=$#curimport;
793: }
794:
795: for (my $i=0;$i<=$lastsel;$i++) {
796: my ($name,$url)=split(/\=/,$curimport[$i]);
797: if ($url) {
798: $importdetail.='&'.$name.'='.$url;
799: }
800: }
801:
802: foreach (
803: &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$ENV{'form.importmap'}))) {
804: my ($name,$url)=split(/\:/,$_);
805: if ($url) {
806: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
807: &Apache::lonnet::escape($url);
808: }
809: }
810:
811: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
812: my ($name,$url)=split(/\=/,$curimport[$i]);
813: if ($url) {
814: $importdetail.='&'.$name.'='.$url;
815: }
816: }
817: $importdetail=~s/\&+/\&/g;
818: $importdetail=~s/^\&//;
819:
820: # ------------------------------------------------ Groupimport/search to target
821: } elsif ($ENV{'form.importdetail'}) {
822: my $lastsel;
823: if (defined($targetselect[-1])) {
824: $lastsel=$targetselect[-1];
825: } else {
826: $lastsel=$#order+1;
827: }
828: &pastetarget($lastsel,split(/\&/,$ENV{'form.importdetail'}));
829: &storemap(&Apache::lonnet::filelocation('',$url));
830: # ------------------------------------------------------------------------- Cut
831: } elsif (($ENV{'form.cut'}) || ($ENV{'form.copy'})) {
832: $importdetail='';
833: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
834:
835: my $lastsel;
836:
837: if (defined($importselect[-1])) {
838: $lastsel=$importselect[-1];
839: } else {
840: $lastsel=$#curimport;
841: }
842:
843: for (my $i=0;$i<=$lastsel;$i++) {
844: my ($name,$url)=split(/\=/,$curimport[$i]);
845: if ($url) {
846: $importdetail.='&'.$name.'='.$url;
847: }
848: }
849:
850: foreach (@targetselect) {
851: my ($name,$url)=split(/\:/,$resources[$order[$_-1]]);
852: if ($url) {
853: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
854: &Apache::lonnet::escape($url);
855: }
856: }
857:
858: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
859: my ($name,$url)=split(/\=/,$curimport[$i]);
860: if ($url) {
861: $importdetail.='&'.$name.'='.$url;
862: }
863: }
864: $importdetail=~s/\&+/\&/g;
865: $importdetail=~s/^\&//;
866:
867: if ($ENV{'form.cut'}) {
868: my @neworder=();
869: for (my $i=0;$i<=$#order;$i++) {
870: my $include=1;
871: foreach (@targetselect) {
872: if ($_-1==$i) { $include=0; }
873: }
874: if ($include) { $neworder[$#neworder+1]=$order[$i]; }
875: }
876: @order=@neworder;
877: &storemap(&Apache::lonnet::filelocation('',$url));
878: }
879:
880: # ----------------------------------------------------------------------- Paste
881: } elsif ($ENV{'form.paste'}) {
882: my $lastsel;
883: if (defined($targetselect[-1])) {
884: $lastsel=$targetselect[-1];
885: } else {
886: $lastsel=$#order+1;
887: }
888: my @newsequence;
889: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
890: foreach (@importselect) {
891: $newsequence[$#newsequence+1]=$curimport[$_];
892: }
893: &pastetarget($lastsel,@newsequence);
894: &storemap(&Apache::lonnet::filelocation('',$url));
895: # -------------------------------------------------------------------- Move up
896: } elsif ($ENV{'form.moveup'}) {
897: foreach (sort @targetselect) {
898: if ($_-1>0) {
899: my $movethis=$order[$_-1];
900: $order[$_-1]=$order[$_-2];
901: $order[$_-2]=$movethis;
902: }
903: }
904: &storemap(&Apache::lonnet::filelocation('',$url));
905: # ------------------------------------------------------------------ Move down
906: } elsif ($ENV{'form.movedown'}) {
907: foreach (reverse sort @targetselect) {
908: if ($_-1<$#order) {
909: my $movethis=$order[$_-1];
910: $order[$_-1]=$order[$_];
911: $order[$_]=$movethis;
912: }
913: }
914: &storemap(&Apache::lonnet::filelocation('',$url));
915: # --------------------------------------------------------------------- Rename
916: } elsif ($ENV{'form.renameres'}) {
917: my $residx=$Apache::lonratedt::order[$ENV{'form.renameidx'}-1];
918: my ($name,@resrest)=split(/\:/,$Apache::lonratedt::resources[$residx]);
919: $name=$ENV{'form.renametitle'};
920: $name=~s/\:/\&colon\;/g;
921: $Apache::lonratedt::resources[$residx]=$name.':'.join(':',@resrest);
922: &storemap(&Apache::lonnet::filelocation('',$url));
923: }
924: # ------------------------------------------------------------ Assemble windows
925:
926: my $idx=-1;
927: $importdetail='&'.$importdetail;
928: $importdetail=~s/^\&+/\&/;
929: my $importwindow=
930: '<option value="-1"> ---- '.&mt('Import and Paste Area').' ---- </option>'.
931: join("\n",map {
932: $idx++;
933: if ($_) {
934: my ($name,$url)=split(/\=/,$_);
935: unless ($name) { $name=(split(/\//,$url))[-1]; }
936: unless ($name) { $name='EMPTY'; }
937: '<option value="'.$idx.'">'.&Apache::lonnet::unescape($name).
938: '</option>';
939: }
940: } split(/\&/,$importdetail));
941:
942: $idx=0;
943: $targetdetail='';
944: my $targetwindow=
945: '<option value="0"> ------- '.&mt('Target Edit Map').' ------- </option>'.
946: join("\n",map {
947: my ($name,$url)=split(/\:/,$resources[$_]);
948: unless ($name) { $name=(split(/\//,$url))[-1]; }
949: unless ($name) { $name='EMPTY'; }
950: $targetdetail.='&'.&Apache::lonnet::escape($name).'='.
951: &Apache::lonnet::escape($url);
952: $idx++;
953: $name=~s/\:/\:/g;
954: '<option value="'.$idx.'">'.$name.'</option>';
955: } @order);
956:
957: # ----------------------------------------------------- Start simple RAT screen
958: my $editscript=&editscript('simple');
959: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1).
960: &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation').
961: &Apache::loncommon::help_open_faq(6).
962: &Apache::loncommon::help_open_bug('RAT');
963: my %lt=&Apache::lonlocal::texthash(
964: 'sa' => 'Save',
965: 'nt' => 'New Title',
966: 'se' => 'Search',
967: 'im' => 'Import',
968: 'vi' => 'View',
969: 'lm' => 'Load Map',
970: 'ds' => 'Discard Selected',
971: 'ca' => 'Clear All',
972: 'ta' => 'Temporary Assembly Workspace',
973: 'rv' => 'Revert to Last Saved',
974: 'sa' => 'Save',
975: 'mu' => 'Move Up',
976: 'md' => 'Move Down',
977: 're' => 'Rename',
978: 'as' => 'after selected',
979: 'cs' => 'Cut selected',
980: 'ps' => 'Copy selected',
981: 'pas' => 'Paste after selected',
982: );
983: $r->print(<<ENDSMPHEAD);
984: <html>
985: <head>
986: <script>
987:
988: $editscript
989:
990: function openview(entry) {
991: var url=unescape((entry.split('='))[1]);
992: var parts=new Array;
993: parts=url.split(':');
994: url=parts.join(':');
995: if (url) { open(url,'cat'); }
996: }
997:
998: function viewtarget() {
999: openview((document.forms.simpleedit.targetdetail.value.split('&'))
1000: [document.forms.simpleedit.target.selectedIndex]);
1001: }
1002:
1003: function viewimport() {
1004: openview((document.forms.simpleedit.curimpdetail.value.split('&'))
1005: [document.forms.simpleedit.importsel.selectedIndex]);
1006: }
1007:
1008: function renametarget() {
1009: var selidx=document.forms.simpleedit.target.selectedIndex;
1010: var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
1011: [selidx];
1012: var oldname=unescape((entry.split('='))[0]);
1013: var nameparts=oldname.split(':');
1014: oldname=unescape(nameparts.join(':'));
1015: nameparts=oldname.split('"');
1016: oldname=unescape(nameparts.join('"'));
1017: nameparts=oldname.split(''');
1018: oldname=unescape(nameparts.join("'"));
1019: newtitle=prompt('$lt{'nt'}',oldname);
1020: if (newtitle) {
1021: document.forms.simpleedit.renameres.value=1;
1022: document.forms.simpleedit.renameidx.value=selidx;
1023: document.forms.simpleedit.renametitle.value=newtitle;
1024: document.forms.simpleedit.submit();
1025: }
1026: }
1027:
1028: </script>
1029: </head>
1030: $bodytag
1031: $buttons
1032: <font color=red>$errtext</font>
1033: <form name=simpleedit method=post>
1034: <input type=hidden name=forcesmp value=1>
1035: <input type=hidden name=renameres value=0>
1036: <input type=hidden name=renametitle value=''>
1037: <input type=hidden name=renameidx value=0>
1038: <table>
1039: <tr><th width="40%">$lt{'ta'}</th>
1040: <th> </th>
1041: <th width="40%">File: $url</th></tr>
1042: <tr><td bgcolor="#FFFFCC">
1043: <input type=button onClick="javascript:groupsearch()" value="$lt{'se'}">
1044: <input type=button onClick="javascript:groupimport();" value="$lt{'im'}">
1045: $lt{'as'}
1046: <hr>
1047: <input type=text size=20 name=importmap>
1048: <input type=button
1049: onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
1050: value="Select Map"><input type=submit name=loadmap value="$lt{'lm'}"><hr>
1051: <input type=submit name="discard" value="$lt{'ds'}">
1052: <input type=submit name="clear" value="$lt{'ca'}">
1053: <input type=button onClick="javascript:viewimport()" value="$lt{'vi'}">
1054:
1055: </td><td> </td><td bgcolor="#FFFFCC">
1056:
1057: <input type=button onClick=
1058: "javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}">
1059: <input type=button onClick=
1060: "javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}">
1061: $lt{'as'}
1062: <hr>
1063: <input type=submit name="moveup" value="$lt{'mu'}">
1064: <input type=submit name="movedown" value="$lt{'md'}">
1065: <input type=button onClick="javascript:renametarget()" value="$lt{'re'}">
1066: <hr>$targetmsg
1067: <input type=submit name="revert" value="$lt{'rv'}">
1068: <input type=submit name="save" value="$lt{'sa'}">
1069: <input type=button onClick="javascript:viewtarget()" value="$lt{'vi'}">
1070: </td></tr>
1071:
1072: <tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
1073: $importwindow
1074: </select>
1075: </td>
1076: <td bgcolor="#FFFFAA" align="center">
1077: $lt{'cs'}<br>
1078: <input type=submit name=cut value='<<<'><p>
1079: <hr>
1080: $lt{'ps'}<br>
1081: <input type=submit name=copy value='<--'><p>
1082: <hr>
1083: $lt{'pas'}<br>
1084: <input type=submit name=paste value='-->'>
1085: </td>
1086: <td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
1087: $targetwindow
1088: </select>
1089: </table>
1090: <input type=hidden name=importdetail value="">
1091: <input type=hidden name=curimpdetail value="$importdetail">
1092: <input type=hidden name=targetdetail value="$targetdetail">
1093: <input type=hidden name=impfortarget value="0">
1094: </form>
1095: </body></html>
1096: ENDSMPHEAD
1097: }
1098:
1099: # ----------------------------------------------------------------- No such dir
1100: sub nodir {
1101: my ($r,$dir)=@_;
1102: $dir=~s/^\/home\/\w+\/public\_html//;
1103: $r->print(<<ENDNODIR);
1104: <html>
1105: <body bgcolor='#FFFFFF'>
1106: <h1>No such directory: $dir</h1>
1107: </body>
1108: </html>
1109: ENDNODIR
1110: }
1111:
1112: # ---------------------------------------------------------------- View Handler
1113:
1114: sub viewmap {
1115: my ($r,$url,$adv,$errtext)=@_;
1116: $r->print('<html>'.
1117: &Apache::loncommon::bodytag('Edit Content of a Map').
1118: &Apache::loncommon::help_open_faq(6).
1119: &Apache::loncommon::help_open_bug('RAT').
1120: &buttons($adv));
1121: if ($errtext) {
1122: $r->print($errtext.'<hr />');
1123: }
1124: my $idx=0;
1125: $r->print('<h1>'.$url.'</h1>');
1126: if ($adv) {
1127: $r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />');
1128: }
1129: foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) {
1130: if (defined($_)) {
1131: $idx++;
1132: my ($title,$url)=split(/\:/,$_);
1133: $title=~s/\&colon\;/\:/g;
1134: $url=~s/\&colon\;/\:/g;
1135: unless ($title) { $title=(split(/\//,$url))[-1] };
1136: unless ($title) { $title='<i>Empty</i>'; }
1137: if ($url) {
1138: $r->print('<a href="'.&Apache::lonratsrv::qtescape($url).'">');
1139: }
1140: $r->print(&Apache::lonratsrv::qtescape($title));
1141: if ($url) { $r->print('</a>'); }
1142: $r->print('<br>');
1143: }
1144: }
1145: $r->print('</body></html>');
1146: }
1147:
1148: # ================================================================ Main Handler
1149:
1150: sub handler {
1151: my $r=shift;
1152: &Apache::loncommon::content_type($r,'text/html');
1153: $r->send_http_header;
1154:
1155: return OK if $r->header_only;
1156: my $target = $ENV{'form.grade_target'};
1157: if ($target eq 'meta') {
1158: &Apache::loncommon::content_type($r,'text/html');
1159: $r->send_http_header;
1160: return OK;
1161: }
1162:
1163: my $url=$r->uri;
1164: my $fn=&Apache::lonnet::filelocation('',$url);
1165:
1166: my ($dir)=($fn=~/^(.+)\/[^\/]+$/);
1167: unless (-e $dir) {
1168: &nodir($r,$dir);
1169: return OK;
1170: }
1171:
1172: # ------------------------------------------- Determine which tools can be used
1173: my $adv=0;
1174:
1175: unless ($ENV{'form.forcesmp'}) {
1176: if ($ENV{'form.forceadv'}) {
1177: $adv=1;
1178: } elsif (my $fh=Apache::File->new($fn)) {
1179: my $allmap=join('',<$fh>);
1180: $adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is);
1181: }
1182: }
1183:
1184: my $errtext='';
1185: my $fatal=0;
1186:
1187: # -------------------------------------------------------------------- Load map
1188: ($errtext,$fatal)=&mapread($fn,$errtext);
1189:
1190: if ($fatal==1) { $adv=1; }
1191:
1192: # ----------------------------------- adv==1 now means "graphical MUST be used"
1193:
1194: if ($ENV{'form.forceadv'}) {
1195: &ratedt($r,$url);
1196: } elsif ($ENV{'form.forcesmp'}) {
1197: &smpedt($r,$url,$errtext);
1198: } else {
1199: &viewmap($r,$url,$adv,$errtext);
1200: }
1201: return OK;
1202: }
1203:
1204: 1;
1205: __END__
1206:
1207:
1208:
1209:
1210:
1211:
1212:
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