1: # The LearningOnline Network with CAPA
2: # Edit Handler for RAT Maps
3: #
4: # $Id: lonratedt.pm,v 1.55 2004/04/24 15:05:16 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: sub editscript {
540: my $mode=shift;
541: my $resurl=&Apache::loncommon::lastresurl();
542: return(<<ENDSCRIPT);
543: var srch;
544: var srchflag=-1; // 1 means currently open
545: // 0 means closed (but has been open)
546: // -1 means never yet opened/defined
547: var srchmode='';
548:
549: var idx;
550: var idxflag=-1; // 1 means currently open
551: // 0 means closed (but has been open)
552: // -1 means never yet opened/defined
553: var idxmode='';
554:
555: // ------------------------------------------------------ Clears indexer window
556: function idxclear() {
557: idx.document.clear();
558: }
559:
560: // ------------------------------------------------------- Clears search window
561: function srchclear() {
562: srch.document.clear();
563: }
564:
565: // ------------------------------------------------------ Closes indexer window
566: function idxclose() {
567: if (idx && !idx.closed) {
568: idxflag=0;
569: idx.close();
570: }
571: }
572:
573: // ------------------------------------------------------- Closes search window
574: function srchclose() {
575: if (srch && !srch.closed) {
576: srchflag=0;
577: srch.close();
578: }
579: }
580:
581: // -------------------------------------------------------- Open indexer window
582: function idxopen(mode) {
583: var options="scrollbars=1,resizable=1,menubar=0";
584: idxmode=mode;
585: idxflag=1;
586: idx=open("$resurl/?launch=1&mode=$mode&catalogmode="+mode,"idxout",options);
587: idx.focus();
588: }
589:
590: // --------------------------------------------------------- Open search window
591: function srchopen(mode) {
592: var options="scrollbars=1,resizable=1,menubar=0";
593: srchmode=mode;
594: srchflag=1;
595: srch=open("/adm/searchcat?launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
596: srch.focus();
597: }
598: // ----------------------------------------------------- launch indexer browser
599: function groupsearch() {
600: srchcheck('groupsearch');
601: }
602:
603: function groupimport() {
604: idxcheck('groupimport');
605: }
606: // ------------------------------------------------------- Do srch status check
607: function srchcheck(mode) {
608: if (!srch || srch.closed || srchmode!=mode) {
609: srchopen(mode);
610: }
611: srch.focus();
612: }
613:
614: // -------------------------------------------------------- Do idx status check
615: function idxcheck(mode) {
616: if (!idx || idx.closed || idxmode!=mode) {
617: idxopen(mode);
618: }
619: idx.focus();
620: }
621:
622:
623: var editbrowser;
624: function openbrowser(formname,elementname,only,omit) {
625: var url = '$resurl/?';
626: if (editbrowser == null) {
627: url += 'launch=1&';
628: }
629: url += 'catalogmode=interactive&';
630: url += 'mode=edit&';
631: url += 'form=' + formname + '&';
632: if (only != null) {
633: url += 'only=' + only + '&';
634: }
635: if (omit != null) {
636: url += 'omit=' + omit + '&';
637: }
638: url += 'element=' + elementname + '';
639: var title = 'Browser';
640: var options = 'scrollbars=1,resizable=1,menubar=0';
641: options += ',width=700,height=600';
642: editbrowser = open(url,title,options,'1');
643: editbrowser.focus();
644: }
645: ENDSCRIPT
646: }
647: # ------------------------------------------------------- Simple edit processor
648:
649: sub smpedt {
650: my ($r,$url,$errtext)=@_;
651: my $buttons=&buttons(2);
652: my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
653: my $targetmsg='';
654: if ($ENV{'form.save'}) {
655: $targetmsg='<b>Saving ...</b><br>';
656: copy($tmpfn,&Apache::lonnet::filelocation('',$url));
657: unlink($tmpfn);
658: my ($errtext,$fatal)=
659: &mapread(&Apache::lonnet::filelocation('',$url),'');
660: }
661: if ($ENV{'form.revert'}) {
662: $targetmsg='<b>Reverting ...</b><br>';
663: unlink($tmpfn);
664: my ($errtext,$fatal)=
665: &mapread(&Apache::lonnet::filelocation('',$url),'');
666: }
667: if (-e $tmpfn) {
668: $targetmsg=
669: '<b><font color="red">'.&mt('You are working with an unsaved version of your map.').'</font></b><br>';
670: my ($errtext,$fatal)=&mapread($tmpfn,'');
671: }
672: # ---------------------------------------------------------- Process form input
673:
674: my @importselect=();
675: my @targetselect=();
676: undef @importselect;
677: undef @targetselect;
678: if (defined($ENV{'form.importsel'})) {
679: if (ref($ENV{'form.importsel'})) {
680: @importselect=sort(@{$ENV{'form.importsel'}});
681: } else {
682: @importselect=($ENV{'form.importsel'});
683: }
684: }
685: if (defined($ENV{'form.target'})) {
686: if (ref($ENV{'form.target'})) {
687: @targetselect=sort(@{$ENV{'form.target'}});
688: } else {
689: @targetselect=($ENV{'form.target'});
690: }
691: }
692: # ============================================================ Process commands
693:
694: my $targetdetail=$ENV{'form.targetdetail'};
695: my $importdetail=$ENV{'form.curimpdetail'};
696:
697: # ---------------------------------------------------- Importing from groupsort
698: if (($ENV{'form.importdetail'}) && (!$ENV{'form.impfortarget'})) {
699:
700: $importdetail='';
701: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
702:
703: my $lastsel;
704:
705: if (defined($importselect[-1])) {
706: $lastsel=$importselect[-1];
707: } else {
708: $lastsel=$#curimport;
709: }
710:
711: for (my $i=0;$i<=$lastsel;$i++) {
712: my ($name,$url)=split(/\=/,$curimport[$i]);
713: if ($url) {
714: $importdetail.='&'.$name.'='.$url;
715: }
716: }
717:
718: $importdetail.='&'.$ENV{'form.importdetail'};
719:
720: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
721: my ($name,$url)=split(/\=/,$curimport[$i]);
722: if ($url) {
723: $importdetail.='&'.$name.'='.$url;
724: }
725: }
726: $importdetail=~s/\&+/\&/g;
727: $importdetail=~s/^\&//;
728:
729: # ------------------------------------------------------------------- Clear all
730: } elsif ($ENV{'form.clear'}) {
731: $importdetail='';
732: # ------------------------------------------------------------ Discard selected
733: } elsif ($ENV{'form.discard'}) {
734: $importdetail='';
735: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
736: foreach (@importselect) {
737: $curimport[$_]='';
738: }
739: for (my $i=0;$i<=$#curimport;$i++) {
740: my ($name,$url)=split(/\=/,$curimport[$i]);
741: if ($url) {
742: $importdetail.='&'.$name.'='.$url;
743: }
744: }
745: # --------------------------------------------------------- Loading another map
746: } elsif ($ENV{'form.loadmap'}) {
747: $importdetail='';
748: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
749:
750: my $lastsel;
751:
752: if (defined($importselect[-1])) {
753: $lastsel=$importselect[-1];
754: } else {
755: $lastsel=$#curimport;
756: }
757:
758: for (my $i=0;$i<=$lastsel;$i++) {
759: my ($name,$url)=split(/\=/,$curimport[$i]);
760: if ($url) {
761: $importdetail.='&'.$name.'='.$url;
762: }
763: }
764:
765: foreach (
766: &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$ENV{'form.importmap'}))) {
767: my ($name,$url)=split(/\:/,$_);
768: if ($url) {
769: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
770: &Apache::lonnet::escape($url);
771: }
772: }
773:
774: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
775: my ($name,$url)=split(/\=/,$curimport[$i]);
776: if ($url) {
777: $importdetail.='&'.$name.'='.$url;
778: }
779: }
780: $importdetail=~s/\&+/\&/g;
781: $importdetail=~s/^\&//;
782:
783: # ------------------------------------------------ Groupimport/search to target
784: } elsif ($ENV{'form.importdetail'}) {
785: my $lastsel;
786: if (defined($targetselect[-1])) {
787: $lastsel=$targetselect[-1];
788: } else {
789: $lastsel=$#order+1;
790: }
791: &pastetarget($lastsel,split(/\&/,$ENV{'form.importdetail'}));
792: &storemap(&Apache::lonnet::filelocation('',$url));
793: # ------------------------------------------------------------------------- Cut
794: } elsif (($ENV{'form.cut'}) || ($ENV{'form.copy'})) {
795: $importdetail='';
796: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
797:
798: my $lastsel;
799:
800: if (defined($importselect[-1])) {
801: $lastsel=$importselect[-1];
802: } else {
803: $lastsel=$#curimport;
804: }
805:
806: for (my $i=0;$i<=$lastsel;$i++) {
807: my ($name,$url)=split(/\=/,$curimport[$i]);
808: if ($url) {
809: $importdetail.='&'.$name.'='.$url;
810: }
811: }
812:
813: foreach (@targetselect) {
814: my ($name,$url)=split(/\:/,$resources[$order[$_-1]]);
815: if ($url) {
816: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
817: &Apache::lonnet::escape($url);
818: }
819: }
820:
821: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
822: my ($name,$url)=split(/\=/,$curimport[$i]);
823: if ($url) {
824: $importdetail.='&'.$name.'='.$url;
825: }
826: }
827: $importdetail=~s/\&+/\&/g;
828: $importdetail=~s/^\&//;
829:
830: if ($ENV{'form.cut'}) {
831: my @neworder=();
832: for (my $i=0;$i<=$#order;$i++) {
833: my $include=1;
834: foreach (@targetselect) {
835: if ($_-1==$i) { $include=0; }
836: }
837: if ($include) { $neworder[$#neworder+1]=$order[$i]; }
838: }
839: @order=@neworder;
840: &storemap(&Apache::lonnet::filelocation('',$url));
841: }
842:
843: # ----------------------------------------------------------------------- Paste
844: } elsif ($ENV{'form.paste'}) {
845: my $lastsel;
846: if (defined($targetselect[-1])) {
847: $lastsel=$targetselect[-1];
848: } else {
849: $lastsel=$#order+1;
850: }
851: my @newsequence;
852: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
853: foreach (@importselect) {
854: $newsequence[$#newsequence+1]=$curimport[$_];
855: }
856: &pastetarget($lastsel,@newsequence);
857: &storemap(&Apache::lonnet::filelocation('',$url));
858: # -------------------------------------------------------------------- Move up
859: } elsif ($ENV{'form.moveup'}) {
860: foreach (sort @targetselect) {
861: if ($_-1>0) {
862: my $movethis=$order[$_-1];
863: $order[$_-1]=$order[$_-2];
864: $order[$_-2]=$movethis;
865: }
866: }
867: &storemap(&Apache::lonnet::filelocation('',$url));
868: # ------------------------------------------------------------------ Move down
869: } elsif ($ENV{'form.movedown'}) {
870: foreach (reverse sort @targetselect) {
871: if ($_-1<$#order) {
872: my $movethis=$order[$_-1];
873: $order[$_-1]=$order[$_];
874: $order[$_]=$movethis;
875: }
876: }
877: &storemap(&Apache::lonnet::filelocation('',$url));
878: # --------------------------------------------------------------------- Rename
879: } elsif ($ENV{'form.renameres'}) {
880: my $residx=$Apache::lonratedt::order[$ENV{'form.renameidx'}-1];
881: my ($name,@resrest)=split(/\:/,$Apache::lonratedt::resources[$residx]);
882: $name=$ENV{'form.renametitle'};
883: $name=~s/\:/\&colon\;/g;
884: $Apache::lonratedt::resources[$residx]=$name.':'.join(':',@resrest);
885: &storemap(&Apache::lonnet::filelocation('',$url));
886: }
887: # ------------------------------------------------------------ Assemble windows
888:
889: my $idx=-1;
890: $importdetail='&'.$importdetail;
891: $importdetail=~s/^\&+/\&/;
892: my $importwindow=
893: '<option value="-1"> ---- '.&mt('Import and Paste Area').' ---- </option>'.
894: join("\n",map {
895: $idx++;
896: if ($_) {
897: my ($name,$url)=split(/\=/,$_);
898: unless ($name) { $name=(split(/\//,$url))[-1]; }
899: unless ($name) { $name='EMPTY'; }
900: '<option value="'.$idx.'">'.&Apache::lonnet::unescape($name).
901: '</option>';
902: }
903: } split(/\&/,$importdetail));
904:
905: $idx=0;
906: $targetdetail='';
907: my $targetwindow=
908: '<option value="0"> ------- '.&mt('Target Edit Map').' ------- </option>'.
909: join("\n",map {
910: my ($name,$url)=split(/\:/,$resources[$_]);
911: unless ($name) { $name=(split(/\//,$url))[-1]; }
912: unless ($name) { $name='EMPTY'; }
913: $targetdetail.='&'.&Apache::lonnet::escape($name).'='.
914: &Apache::lonnet::escape($url);
915: $idx++;
916: $name=~s/\:/\:/g;
917: '<option value="'.$idx.'">'.$name.'</option>';
918: } @order);
919:
920: # ----------------------------------------------------- Start simple RAT screen
921: my $editscript=&editscript('simple');
922: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1).
923: &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation').
924: &Apache::loncommon::help_open_faq(6).
925: &Apache::loncommon::help_open_bug('RAT');
926: my %lt=&Apache::lonlocal::texthash(
927: 'sa' => 'Save',
928: 'nt' => 'New Title',
929: 'se' => 'Search',
930: 'im' => 'Import',
931: 'vi' => 'View',
932: 'lm' => 'Load Map',
933: 'ds' => 'Discard Selected',
934: 'ca' => 'Clear All',
935: 'ta' => 'Temporary Assembly Workspace',
936: 'rv' => 'Revert to Last Saved',
937: 'sa' => 'Save',
938: 'mu' => 'Move Up',
939: 'md' => 'Move Down',
940: 're' => 'Rename',
941: 'as' => 'after selected',
942: 'cs' => 'Cut selected',
943: 'ps' => 'Copy selected',
944: 'pas' => 'Paste after selected',
945: );
946: $r->print(<<ENDSMPHEAD);
947: <html>
948: <head>
949: <script>
950:
951: $editscript
952:
953: function openview(entry) {
954: var url=unescape((entry.split('='))[1]);
955: var parts=new Array;
956: parts=url.split(':');
957: url=parts.join(':');
958: if (url) { open(url,'cat'); }
959: }
960:
961: function viewtarget() {
962: openview((document.forms.simpleedit.targetdetail.value.split('&'))
963: [document.forms.simpleedit.target.selectedIndex]);
964: }
965:
966: function viewimport() {
967: openview((document.forms.simpleedit.curimpdetail.value.split('&'))
968: [document.forms.simpleedit.importsel.selectedIndex]);
969: }
970:
971: function renametarget() {
972: var selidx=document.forms.simpleedit.target.selectedIndex;
973: var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
974: [selidx];
975: var oldname=unescape((entry.split('='))[0]);
976: var nameparts=oldname.split(':');
977: oldname=unescape(nameparts.join(':'));
978: nameparts=oldname.split('"');
979: oldname=unescape(nameparts.join('"'));
980: nameparts=oldname.split(''');
981: oldname=unescape(nameparts.join("'"));
982: newtitle=prompt('$lt{'nt'}',oldname);
983: if (newtitle) {
984: document.forms.simpleedit.renameres.value=1;
985: document.forms.simpleedit.renameidx.value=selidx;
986: document.forms.simpleedit.renametitle.value=newtitle;
987: document.forms.simpleedit.submit();
988: }
989: }
990:
991: </script>
992: </head>
993: $bodytag
994: $buttons
995: <font color=red>$errtext</font>
996: <form name=simpleedit method=post>
997: <input type=hidden name=forcesmp value=1>
998: <input type=hidden name=renameres value=0>
999: <input type=hidden name=renametitle value=''>
1000: <input type=hidden name=renameidx value=0>
1001: <table>
1002: <tr><th width="40%">$lt{'ta'}</th>
1003: <th> </th>
1004: <th width="40%">File: $url</th></tr>
1005: <tr><td bgcolor="#FFFFCC">
1006: <input type=button onClick="javascript:groupsearch()" value="$lt{'se'}">
1007: <input type=button onClick="javascript:groupimport();" value="$lt{'im'}">
1008: $lt{'as'}
1009: <hr>
1010: <input type=text size=20 name=importmap>
1011: <input type=button
1012: onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
1013: value="Select Map"><input type=submit name=loadmap value="$lt{'lm'}"><hr>
1014: <input type=submit name="discard" value="$lt{'ds'}">
1015: <input type=submit name="clear" value="$lt{'ca'}">
1016: <input type=button onClick="javascript:viewimport()" value="$lt{'vi'}">
1017:
1018: </td><td> </td><td bgcolor="#FFFFCC">
1019:
1020: <input type=button onClick=
1021: "javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}">
1022: <input type=button onClick=
1023: "javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}">
1024: $lt{'as'}
1025: <hr>
1026: <input type=submit name="moveup" value="$lt{'mu'}">
1027: <input type=submit name="movedown" value="$lt{'md'}">
1028: <input type=button onClick="javascript:renametarget()" value="$lt{'re'}">
1029: <hr>$targetmsg
1030: <input type=submit name="revert" value="$lt{'rv'}">
1031: <input type=submit name="save" value="$lt{'sa'}">
1032: <input type=button onClick="javascript:viewtarget()" value="$lt{'vi'}">
1033: </td></tr>
1034:
1035: <tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
1036: $importwindow
1037: </select>
1038: </td>
1039: <td bgcolor="#FFFFAA" align="center">
1040: $lt{'cs'}<br>
1041: <input type=submit name=cut value='<<<'><p>
1042: <hr>
1043: $lt{'ps'}<br>
1044: <input type=submit name=copy value='<--'><p>
1045: <hr>
1046: $lt{'pas'}<br>
1047: <input type=submit name=paste value='-->'>
1048: </td>
1049: <td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
1050: $targetwindow
1051: </select>
1052: </table>
1053: <input type=hidden name=importdetail value="">
1054: <input type=hidden name=curimpdetail value="$importdetail">
1055: <input type=hidden name=targetdetail value="$targetdetail">
1056: <input type=hidden name=impfortarget value="0">
1057: </form>
1058: </body></html>
1059: ENDSMPHEAD
1060: }
1061:
1062: # ----------------------------------------------------------------- No such dir
1063: sub nodir {
1064: my ($r,$dir)=@_;
1065: $dir=~s/^\/home\/\w+\/public\_html//;
1066: $r->print(<<ENDNODIR);
1067: <html>
1068: <body bgcolor='#FFFFFF'>
1069: <h1>No such directory: $dir</h1>
1070: </body>
1071: </html>
1072: ENDNODIR
1073: }
1074:
1075: # ---------------------------------------------------------------- View Handler
1076:
1077: sub viewmap {
1078: my ($r,$url,$adv,$errtext)=@_;
1079: $r->print('<html>'.
1080: &Apache::loncommon::bodytag('Edit Content of a Map').
1081: &Apache::loncommon::help_open_faq(6).
1082: &Apache::loncommon::help_open_bug('RAT').
1083: &buttons($adv));
1084: if ($errtext) {
1085: $r->print($errtext.'<hr />');
1086: }
1087: my $idx=0;
1088: $r->print('<h1>'.$url.'</h1>');
1089: if ($adv) {
1090: $r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />');
1091: }
1092: foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) {
1093: if (defined($_)) {
1094: $idx++;
1095: my ($title,$url)=split(/\:/,$_);
1096: $title=~s/\&colon\;/\:/g;
1097: $url=~s/\&colon\;/\:/g;
1098: unless ($title) { $title=(split(/\//,$url))[-1] };
1099: unless ($title) { $title='<i>Empty</i>'; }
1100: if ($url) {
1101: $r->print('<a href="'.&Apache::lonratsrv::qtescape($url).'">');
1102: }
1103: $r->print(&Apache::lonratsrv::qtescape($title));
1104: if ($url) { $r->print('</a>'); }
1105: $r->print('<br>');
1106: }
1107: }
1108: $r->print('</body></html>');
1109: }
1110:
1111: # ================================================================ Main Handler
1112:
1113: sub handler {
1114: my $r=shift;
1115: &Apache::loncommon::content_type($r,'text/html');
1116: $r->send_http_header;
1117:
1118: return OK if $r->header_only;
1119: my $target = $ENV{'form.grade_target'};
1120: if ($target eq 'meta') {
1121: &Apache::loncommon::content_type($r,'text/html');
1122: $r->send_http_header;
1123: return OK;
1124: }
1125:
1126: my $url=$r->uri;
1127: my $fn=&Apache::lonnet::filelocation('',$url);
1128:
1129: my ($dir)=($fn=~/^(.+)\/[^\/]+$/);
1130: unless (-e $dir) {
1131: &nodir($r,$dir);
1132: return OK;
1133: }
1134:
1135: # ------------------------------------------- Determine which tools can be used
1136: my $adv=0;
1137:
1138: unless ($ENV{'form.forcesmp'}) {
1139: if ($ENV{'form.forceadv'}) {
1140: $adv=1;
1141: } elsif (my $fh=Apache::File->new($fn)) {
1142: my $allmap=join('',<$fh>);
1143: $adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is);
1144: }
1145: }
1146:
1147: my $errtext='';
1148: my $fatal=0;
1149:
1150: # -------------------------------------------------------------------- Load map
1151: ($errtext,$fatal)=&mapread($fn,$errtext);
1152:
1153: if ($fatal==1) { $adv=1; }
1154:
1155: # ----------------------------------- adv==1 now means "graphical MUST be used"
1156:
1157: if ($ENV{'form.forceadv'}) {
1158: &ratedt($r,$url);
1159: } elsif ($ENV{'form.forcesmp'}) {
1160: &smpedt($r,$url,$errtext);
1161: } else {
1162: &viewmap($r,$url,$adv,$errtext);
1163: }
1164: return OK;
1165: }
1166:
1167: 1;
1168: __END__
1169:
1170:
1171:
1172:
1173:
1174:
1175:
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