1: # The LearningOnline Network with CAPA
2: # Edit Handler for RAT Maps
3: #
4: # $Id: lonratedt.pm,v 1.68 2005/06/08 16:10:01 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 @zombies %revzombies);
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 $fn=shift;
185:
186: my @links;
187: undef @links;
188: undef @resources;
189: undef @order;
190: undef @resparms;
191: undef @zombies;
192: undef %revzombies;
193:
194: @resources=('');
195: @order=();
196: @resparms=();
197: @zombies=();
198: %revzombies=();
199:
200: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
201: if ($errtext) { return ($errtext,2); }
202:
203: # -------------------------------------------------------------------- Read map
204: foreach (split(/\<\&\>/,$outtext)) {
205: my ($command,$number,$content)=split(/\<\:\>/,$_);
206: if ($command eq 'objcont') {
207: my ($title,$src,$ext,$type)=split(/\:/,$content);
208: if ($type ne 'zombie') {
209: $resources[$number]=$content;
210: } else {
211: $zombies[$number]=$content;
212: $revzombies{$src}=$number;
213: }
214: }
215: if ($command eq 'objlinks') {
216: $links[$number]=$content;
217: }
218: if ($command eq 'objparms') {
219: if ($resparms[$number]) {
220: $resparms[$number].='&&&'.$content;
221: } else {
222: $resparms[$number]=$content;
223: }
224: }
225: }
226: # ------------------------------------------------------- Is this a linear map?
227: my @starters=();
228: my @endings=();
229: undef @starters;
230: undef @endings;
231:
232: foreach (@links) {
233: if (defined($_)) {
234: my ($start,$end,$cond)=split(/\:/,$_);
235: if ((defined($starters[$start])) || (defined($endings[$end]))) {
236: return
237: (&mt('Map has branchings. Use advanced editor.'),1);
238: }
239: $starters[$start]=1;
240: $endings[$end]=1;
241: if ($cond) {
242: return
243: (&mt('Map has conditions. Use advanced editor.'),1);
244: }
245: }
246:
247: }
248: for (my $i=1; $i<=$#resources; $i++) {
249: if (defined($resources[$i])) {
250: unless (($starters[$i]) || ($endings[$i])) {
251: return
252: (&mt('Map has unconnected resources. Use advanced editor.'),1);
253: }
254: }
255: }
256: # ---------------------------------------------- Did we just read an empty map?
257: if ($#resources<1) {
258: undef $resources[0];
259: $resources[1]=':::start';
260: $resources[2]=':::finish';
261: }
262: # -------------------------------------------------- This is a linear map, sort
263:
264: my $startidx=0;
265: my $endidx=0;
266: for (my $i=0; $i<=$#resources; $i++) {
267: if (defined($resources[$i])) {
268: my ($title,$url,$ext,$type)=split(/\:/,$resources[$i]);
269: if ($type eq 'start') { $startidx=$i; }
270: if ($type eq 'finish') { $endidx=$i; }
271: }
272: }
273: my $k=0;
274: my $currentidx=$startidx;
275: $order[$k]=$currentidx;
276: for (my $i=0; $i<=$#resources; $i++) {
277: foreach (@links) {
278: my ($start,$end)=split(/\:/,$_);
279: if ($start==$currentidx) {
280: $currentidx=$end;
281: $k++;
282: $order[$k]=$currentidx;
283: last;
284: }
285: }
286: if ($currentidx==$endidx) { last; }
287: }
288: return $errtext;
289: }
290:
291: # ---------------------------------------------- Read a map as well as possible
292: # Also used by the sequence handler
293: # Call lonsequence::attemptread to read from resource space
294: #
295: sub attemptread {
296: my $fn=shift;
297:
298: my @links;
299: undef @links;
300: my @theseres;
301: undef @theseres;
302:
303: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
304: if ($errtext) { return @theseres }
305:
306: # -------------------------------------------------------------------- Read map
307: foreach (split(/\<\&\>/,$outtext)) {
308: my ($command,$number,$content)=split(/\<\:\>/,$_);
309: if ($command eq 'objcont') {
310: my ($title,$src,$ext,$type)=split(/\:/,$content);
311: unless ($type eq 'zombie') {
312: $theseres[$number]=$content;
313: }
314: }
315: if ($command eq 'objlinks') {
316: $links[$number]=$content;
317: }
318: }
319:
320: # --------------------------------------------------------------- Sort, sort of
321:
322: my @objsort=();
323: undef @objsort;
324:
325: my @data1=();
326: my @data2=();
327: undef @data1;
328: undef @data2;
329:
330: my $k;
331: my $kj;
332: my $j;
333: my $ij;
334:
335: for ($k=1;$k<=$#theseres;$k++) {
336: if (defined($theseres[$k])) {
337: $objsort[$#objsort+1]=$k;
338: }
339: }
340:
341: for ($k=1;$k<=$#links;$k++) {
342: if (defined($links[$k])) {
343: @data1=split(/\:/,$links[$k]);
344: $kj=-1;
345: for (my $j=0;$j<=$#objsort;$j++) {
346: if ((split(/\:/,$objsort[$j]))[0]==$data1[0]) {
347: $kj=$j;
348: }
349: }
350: if ($kj!=-1) { $objsort[$kj].=':'.$data1[1]; }
351: }
352: }
353: for ($k=0;$k<=$#objsort;$k++) {
354: for ($j=0;$j<=$#objsort;$j++) {
355: if ($k!=$j) {
356: @data1=split(/\:/,$objsort[$k]);
357: @data2=split(/\:/,$objsort[$j]);
358: my $dol=$#data1+1;
359: my $dtl=$#data2+1;
360: if ($dol+$dtl<1000) {
361: for ($kj=1;$kj<$dol;$kj++) {
362: if ($data1[$kj]==$data2[0]) {
363: for ($ij=1;$ij<$dtl;$ij++) {
364: $data1[$#data1+1]=$data2[$ij];
365: }
366: }
367: }
368: for ($kj=1;$kj<$dtl;$kj++) {
369: if ($data2[$kj]==$data1[0]) {
370: for ($ij=1;$ij<$dol;$ij++) {
371: $data2[$#data2+1]=$data1[$ij];
372: }
373: }
374: }
375: $objsort[$k]=join(':',@data1);
376: $objsort[$j]=join(':',@data2);
377: }
378: }
379: }
380: }
381: # ---------------------------------------------------------------- Now sort out
382:
383: @objsort=sort {
384: my @data1=split(/\:/,$a);
385: my @data2=split(/\:/,$b);
386: my $rvalue=0;
387: my $k;
388: for ($k=1;$k<=$#data1;$k++) {
389: if ($data1[$k]==$data2[0]) { $rvalue--; }
390: }
391: for ($k=1;$k<=$#data2;$k++) {
392: if ($data2[$k]==$data1[0]) { $rvalue++; }
393: }
394: if ($rvalue==0) { $rvalue=$#data2-$#data1; }
395: $rvalue;
396: } @objsort;
397:
398: my @outres=();
399: undef @outres;
400:
401: for ($k=0;$k<=$#objsort;$k++) {
402: $outres[$k]=$theseres[(split(/\:/,$objsort[$k]))[0]];
403: }
404: return @outres;
405: }
406:
407: # --------------------------------------------------------- Build up RAT screen
408: sub ratedt {
409: my ($r,$url)=@_;
410: my $frameset = '<frameset rows="1,70,*" border="0">';
411: if ($env{'environment.remote'} eq 'off') {
412: $frameset = '<frameset rows="1,250,*" border="0">';
413: }
414: $r->print(<<ENDDOCUMENT);
415:
416: <html>
417: <head>
418: <script language="JavaScript">
419: var flag=0;
420: </script>
421: </head>
422: $frameset
423: <frame name=server src="$url/loadonly/ratserver" noresize noscroll>
424: <frame name=code src="$url/loadonly/adveditmenu">
425: <frame name=mapout src="/adm/rat/map.html">
426: </frameset>
427: </html>
428:
429: ENDDOCUMENT
430: }
431:
432: # ---------------------------------------------------------------- Make buttons
433:
434: sub buttons {
435: my $adv=shift;
436: my $output='<form method=post>';
437: if ($adv==1) {
438: $output.='<input type=submit name=forceadv value="'.&mt('Edit').'">'.
439: &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');;
440: } else {
441: unless ($adv==2) {
442: $output.='<input type=submit name=forcesmp value="'.&mt('Simple Edit').'">'.
443: &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation');
444: }
445: $output.='<input type=submit name=forceadv value="'.&mt('Advanced Edit').'">'.
446: &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');
447: }
448: return $output.'</form><hr>';
449: }
450:
451: # ----------------------------------------------------- Get an unused res index
452:
453: sub unusedindex {
454: return 1+($#resources>$#zombies?$#resources:$#zombies);
455: }
456:
457: # ----------------------------------------------------------- Paste into target
458: # modifies @order, @resources
459:
460: sub pastetarget {
461: my ($after,@which)=@_;
462: my @insertorder=();
463: foreach (@which) {
464: if (defined($_)) {
465: my ($name,$url)=split(/\=/,$_);
466: $name=&Apache::lonnet::unescape($name);
467: $url=&Apache::lonnet::unescape($url);
468: if ($url) {
469: my $idx=&unusedindex();
470: $insertorder[$#insertorder+1]=$idx;
471: my $ext='false';
472: if ($url=~/^http\:\/\//) { $ext='true'; }
473: $url=~s/\:/\:/g;
474: $name=~s/\:/\:/g;
475: $resources[$idx]=$name.':'.$url.':'.$ext.':normal:res';
476: }
477: }
478: }
479: my @oldorder=splice(@order,$after);
480: @order=(@order,@insertorder,@oldorder);
481: }
482:
483: # ------------------------------------------------ Get start and finish correct
484: # modifies @resources
485:
486: sub startfinish {
487: # Remove all start and finish
488: foreach (@order) {
489: my ($name,$url,$ext)=split(/\:/,$resources[$_]);
490: if ($url=~/http\&colon\:\/\//) { $ext='true'; }
491: $resources[$_]=$name.':'.$url.':'.$ext.':normal:res';
492: }
493: # Garbage collection
494: my $stillchange=1;
495: while (($#order>1) && ($stillchange)) {
496: $stillchange=0;
497: for (my $i=0;$i<=$#order;$i++) {
498: my ($name,$url,$ext)=split(/\:/,$resources[$order[$i]]);
499: unless ($url) {
500: # Take out empty resource
501: for (my $j=$i+1;$j<=$#order;$j++) {
502: $order[$j-1]=$order[$j];
503: }
504: $#order--;
505: $stillchange=1;
506: last;
507: }
508: }
509: }
510: # Put in a start resource
511: my ($name,$url,$ext)=split(/\:/,$resources[$order[0]]);
512: $resources[$order[0]]=$name.':'.$url.':'.$ext.':start:res';
513: # Make sure this has at least start and finish
514: if ($#order==0) {
515: $resources[&unusedindex()]='::false';
516: $order[1]=$#resources;
517: }
518: # Make the last one a finish resource
519: ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]);
520: $resources[$order[$#order]]=$name.':'.$url.':'.$ext.':finish:res';
521: }
522:
523: # ------------------------------------------------------------------- Store map
524:
525: sub storemap {
526: my $realfn=shift;
527: my $fn=$realfn;
528: # unless this is forced to work from the original file, use a temporary file
529: # instead
530: unless (shift) {
531: $fn=$realfn.'.tmp';
532: unless (-e $fn) {
533: copy($realfn,$fn);
534: }
535: }
536: # store data either into tmp or real file
537: &startfinish();
538: my $output='graphdef<:>no';
539: my $k=1;
540: for (my $i=0; $i<=$#order; $i++) {
541: if (defined($resources[$order[$i]])) {
542: $output.='<&>objcont<:>'.$order[$i].'<:>'.$resources[$order[$i]];
543: }
544: if (defined($resparms[$order[$i]])) {
545: foreach (split('&&&',$resparms[$order[$i]])) {
546: if ($_) {
547: $output.='<&>objparms<:>'.$order[$i].'<:>'.$_;
548: }
549: }
550: }
551: if (defined($order[$i+1])) {
552: if (defined($resources[$order[$i+1]])) {
553: $output.='<&>objlinks<:>'.$k.'<:>'.
554: $order[$i].':'.$order[$i+1].':0';
555: $k++;
556: }
557: }
558: }
559: $output=~s/http\&colon\;\/\///g;
560: $env{'form.output'}=$output;
561: return
562: &Apache::lonratsrv::loadmap($fn,&Apache::lonratsrv::savemap($fn,''));
563: }
564:
565: # ------------------------------------------ Store and get parameters in global
566:
567: sub storeparameter {
568: my ($to,$name,$value,$ptype)=@_;
569: my $newentry='';
570: my $nametype='';
571: foreach (split('&&&',$resparms[$to])) {
572: my ($thistype,$thisname,$thisvalue)=split('___',$_);
573: if ($thisname) {
574: unless ($thisname eq $name) {
575: $newentry.=$_.'&&&';
576: } else {
577: $nametype=$thistype;
578: }
579: }
580: }
581: unless ($ptype) { $ptype=$nametype; }
582: unless ($ptype) { $ptype='string'; }
583: $newentry.=$ptype.'___'.$name.'___'.$value;
584: $resparms[$to]=$newentry;
585: }
586:
587: sub delparameter {
588: my ($to,$name)=@_;
589: my $newentry='';
590: my $nametype='';
591: foreach (split('&&&',$resparms[$to])) {
592: my ($thistype,$thisname,$thisvalue)=split('___',$_);
593: if ($thisname) {
594: unless ($thisname eq $name) {
595: $newentry.=$_.'&&&';
596: }
597: }
598: }
599: $resparms[$to]=$newentry;
600: }
601:
602: sub getparameter {
603: my ($to,$name)=@_;
604: my $value=undef;
605: my $ptype=undef;
606: foreach (split('&&&',$resparms[$to])) {
607: my ($thistype,$thisname,$thisvalue)=split('___',$_);
608: if ($thisname eq $name) {
609: $value=$thisvalue;
610: $ptype=$thistype;
611: }
612: }
613: return ($value,$ptype);
614: }
615:
616: # ----------------------------------------------------------------- Edit script
617: sub editscript {
618: my $mode=shift;
619: my $resurl=&Apache::loncommon::lastresurl();
620: return(<<ENDSCRIPT);
621: var srch;
622: var srchflag=-1; // 1 means currently open
623: // 0 means closed (but has been open)
624: // -1 means never yet opened/defined
625: var srchmode='';
626:
627: var idx;
628: var idxflag=-1; // 1 means currently open
629: // 0 means closed (but has been open)
630: // -1 means never yet opened/defined
631: var idxmode='';
632:
633: // ------------------------------------------------------ Clears indexer window
634: function idxclear() {
635: idx.document.clear();
636: }
637:
638: // ------------------------------------------------------- Clears search window
639: function srchclear() {
640: srch.document.clear();
641: }
642:
643: // ------------------------------------------------------ Closes indexer window
644: function idxclose() {
645: if (idx && !idx.closed) {
646: idxflag=0;
647: idx.close();
648: }
649: }
650:
651: // ------------------------------------------------------- Closes search window
652: function srchclose() {
653: if (srch && !srch.closed) {
654: srchflag=0;
655: srch.close();
656: }
657: }
658:
659: // -------------------------------------------------------- Open indexer window
660: function idxopen(mode) {
661: var options="scrollbars=1,resizable=1,menubar=0";
662: idxmode=mode;
663: idxflag=1;
664: idx=open("$resurl/?launch=1&mode=$mode&catalogmode="+mode,"idxout",options);
665: idx.focus();
666: }
667:
668: // --------------------------------------------------------- Open search window
669: function srchopen(mode) {
670: var options="scrollbars=1,resizable=1,menubar=0";
671: srchmode=mode;
672: srchflag=1;
673: srch=open("/adm/searchcat?launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
674: srch.focus();
675: }
676: // ----------------------------------------------------- launch indexer browser
677: function groupsearch() {
678: srchcheck('groupsearch');
679: }
680:
681: function groupimport() {
682: idxcheck('groupimport');
683: }
684: // ------------------------------------------------------- Do srch status check
685: function srchcheck(mode) {
686: if (!srch || srch.closed || srchmode!=mode) {
687: srchopen(mode);
688: }
689: srch.focus();
690: }
691:
692: // -------------------------------------------------------- Do idx status check
693: function idxcheck(mode) {
694: if (!idx || idx.closed || idxmode!=mode) {
695: idxopen(mode);
696: }
697: idx.focus();
698: }
699:
700:
701: var editbrowser;
702: function openbrowser(formname,elementname,only,omit) {
703: var url = '$resurl/?';
704: if (editbrowser == null) {
705: url += 'launch=1&';
706: }
707: url += 'catalogmode=interactive&';
708: url += 'mode=edit&';
709: url += 'form=' + formname + '&';
710: if (only != null) {
711: url += 'only=' + only + '&';
712: }
713: if (omit != null) {
714: url += 'omit=' + omit + '&';
715: }
716: url += 'element=' + elementname + '';
717: var title = 'Browser';
718: var options = 'scrollbars=1,resizable=1,menubar=0';
719: options += ',width=700,height=600';
720: editbrowser = open(url,title,options,'1');
721: editbrowser.focus();
722: }
723: ENDSCRIPT
724: }
725: # ------------------------------------------------------- Simple edit processor
726:
727: sub smpedt {
728: my ($r,$url,$errtext)=@_;
729: my $buttons=&buttons(2);
730: my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
731: my $targetmsg='';
732: if ($env{'form.save'}) {
733: copy($tmpfn,&Apache::lonnet::filelocation('',$url));
734: unlink($tmpfn);
735: my ($errtext,$fatal)=
736: &mapread(&Apache::lonnet::filelocation('',$url),'');
737: unless ($fatal) {
738: $targetmsg='<b>'.&mt('Saved.').'</b><br />';
739: } else {
740: $targetmsg='<b>'.&mt('An error occured while saving.').'</b><br />';
741: }
742: }
743: if ($env{'form.revert'}) {
744: $targetmsg='<b>'.&mt('Reverted.').'</b><br />';
745: unlink($tmpfn);
746: my ($errtext,$fatal)=
747: &mapread(&Apache::lonnet::filelocation('',$url),'');
748: }
749: if (-e $tmpfn) {
750: $targetmsg=
751: '<b><font color="red">'.&mt('You are working with an unsaved version of your map.').'</font></b><br>';
752: my ($errtext,$fatal)=&mapread($tmpfn,'');
753: }
754: # ---------------------------------------------------------- Process form input
755:
756: my @importselect=&Apache::loncommon::get_env_multiple('form.importsel');
757: my @targetselect=&Apache::loncommon::get_env_multiple('form.target');
758: # ============================================================ Process commands
759:
760: my $targetdetail=$env{'form.targetdetail'};
761: my $importdetail=$env{'form.curimpdetail'};
762:
763: # ---------------------------------------------------- Importing from groupsort
764: if (($env{'form.importdetail'}) && (!$env{'form.impfortarget'})) {
765:
766: $importdetail='';
767: my @curimport=split(/\&/,$env{'form.curimpdetail'});
768:
769: my $lastsel;
770:
771: if (defined($importselect[-1])) {
772: $lastsel=$importselect[-1];
773: } else {
774: $lastsel=$#curimport;
775: }
776:
777: for (my $i=0;$i<=$lastsel;$i++) {
778: my ($name,$url)=split(/\=/,$curimport[$i]);
779: if ($url) {
780: $importdetail.='&'.$name.'='.$url;
781: }
782: }
783:
784: $importdetail.='&'.$env{'form.importdetail'};
785:
786: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
787: my ($name,$url)=split(/\=/,$curimport[$i]);
788: if ($url) {
789: $importdetail.='&'.$name.'='.$url;
790: }
791: }
792: $importdetail=~s/\&+/\&/g;
793: $importdetail=~s/^\&//;
794:
795: # ------------------------------------------------------------------- Clear all
796: } elsif ($env{'form.clear'}) {
797: $importdetail='';
798: # ------------------------------------------------------------ Discard selected
799: } elsif ($env{'form.discard'}) {
800: $importdetail='';
801: my @curimport=split(/\&/,$env{'form.curimpdetail'});
802: foreach (@importselect) {
803: $curimport[$_]='';
804: }
805: for (my $i=0;$i<=$#curimport;$i++) {
806: my ($name,$url)=split(/\=/,$curimport[$i]);
807: if ($url) {
808: $importdetail.='&'.$name.'='.$url;
809: }
810: }
811: # --------------------------------------------------------- Loading another map
812: } elsif ($env{'form.loadmap'}) {
813: $importdetail='';
814: my @curimport=split(/\&/,$env{'form.curimpdetail'});
815:
816: my $lastsel;
817:
818: if (defined($importselect[-1])) {
819: $lastsel=$importselect[-1];
820: } else {
821: $lastsel=$#curimport;
822: }
823:
824: for (my $i=0;$i<=$lastsel;$i++) {
825: my ($name,$url)=split(/\=/,$curimport[$i]);
826: if ($url) {
827: $importdetail.='&'.$name.'='.$url;
828: }
829: }
830:
831: foreach (
832: &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
833: my ($name,$url)=split(/\:/,$_);
834: if ($url) {
835: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
836: &Apache::lonnet::escape($url);
837: }
838: }
839:
840: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
841: my ($name,$url)=split(/\=/,$curimport[$i]);
842: if ($url) {
843: $importdetail.='&'.$name.'='.$url;
844: }
845: }
846: $importdetail=~s/\&+/\&/g;
847: $importdetail=~s/^\&//;
848:
849: # ------------------------------------------------ Groupimport/search to target
850: } elsif ($env{'form.importdetail'}) {
851: my $lastsel;
852: if (defined($targetselect[-1])) {
853: $lastsel=$targetselect[-1];
854: } else {
855: $lastsel=$#order+1;
856: }
857: &pastetarget($lastsel,split(/\&/,$env{'form.importdetail'}));
858: &storemap(&Apache::lonnet::filelocation('',$url));
859: # ------------------------------------------------------------------------- Cut
860: } elsif (($env{'form.cut'}) || ($env{'form.copy'})) {
861: $importdetail='';
862: my @curimport=split(/\&/,$env{'form.curimpdetail'});
863:
864: my $lastsel;
865:
866: if (defined($importselect[-1])) {
867: $lastsel=$importselect[-1];
868: } else {
869: $lastsel=$#curimport;
870: }
871:
872: for (my $i=0;$i<=$lastsel;$i++) {
873: my ($name,$url)=split(/\=/,$curimport[$i]);
874: if ($url) {
875: $importdetail.='&'.$name.'='.$url;
876: }
877: }
878:
879: foreach (@targetselect) {
880: my ($name,$url)=split(/\:/,$resources[$order[$_-1]]);
881: if ($url) {
882: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
883: &Apache::lonnet::escape($url);
884: }
885: }
886:
887: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
888: my ($name,$url)=split(/\=/,$curimport[$i]);
889: if ($url) {
890: $importdetail.='&'.$name.'='.$url;
891: }
892: }
893: $importdetail=~s/\&+/\&/g;
894: $importdetail=~s/^\&//;
895:
896: if ($env{'form.cut'}) {
897: my @neworder=();
898: for (my $i=0;$i<=$#order;$i++) {
899: my $include=1;
900: foreach (@targetselect) {
901: if ($_-1==$i) { $include=0; }
902: }
903: if ($include) { $neworder[$#neworder+1]=$order[$i]; }
904: }
905: @order=@neworder;
906: &storemap(&Apache::lonnet::filelocation('',$url));
907: }
908:
909: # ----------------------------------------------------------------------- Paste
910: } elsif ($env{'form.paste'}) {
911: my $lastsel;
912: if (defined($targetselect[-1])) {
913: $lastsel=$targetselect[-1];
914: } else {
915: $lastsel=$#order+1;
916: }
917: my @newsequence;
918: my @curimport=split(/\&/,$env{'form.curimpdetail'});
919: foreach (@importselect) {
920: $newsequence[$#newsequence+1]=$curimport[$_];
921: }
922: &pastetarget($lastsel,@newsequence);
923: &storemap(&Apache::lonnet::filelocation('',$url));
924: # -------------------------------------------------------------------- Move up
925: } elsif ($env{'form.moveup'}) {
926: foreach (sort @targetselect) {
927: if ($_-1>0) {
928: my $movethis=$order[$_-1];
929: $order[$_-1]=$order[$_-2];
930: $order[$_-2]=$movethis;
931: }
932: }
933: &storemap(&Apache::lonnet::filelocation('',$url));
934: # ------------------------------------------------------------------ Move down
935: } elsif ($env{'form.movedown'}) {
936: foreach (reverse sort @targetselect) {
937: if ($_-1<$#order) {
938: my $movethis=$order[$_-1];
939: $order[$_-1]=$order[$_];
940: $order[$_]=$movethis;
941: }
942: }
943: &storemap(&Apache::lonnet::filelocation('',$url));
944: # --------------------------------------------------------------------- Rename
945: } elsif ($env{'form.renameres'}) {
946: my $residx=$Apache::lonratedt::order[$env{'form.renameidx'}-1];
947: my ($name,@resrest)=split(/\:/,$Apache::lonratedt::resources[$residx]);
948: $name=$env{'form.renametitle'};
949: $name=~s/\:/\&colon\;/g;
950: $Apache::lonratedt::resources[$residx]=$name.':'.join(':',@resrest);
951: &storemap(&Apache::lonnet::filelocation('',$url));
952: }
953: # ------------------------------------------------------------ Assemble windows
954:
955: my $idx=-1;
956: $importdetail='&'.$importdetail;
957: $importdetail=~s/^\&+/\&/;
958: my $importwindow=
959: '<option value="-1"> ---- '.&mt('Import and Paste Area').' ---- </option>'.
960: join("\n",map {
961: $idx++;
962: if ($_) {
963: my ($name,$url)=split(/\=/,$_);
964: unless ($name) { $name=(split(/\//,$url))[-1]; }
965: unless ($name) { $name='EMPTY'; }
966: '<option value="'.$idx.'">'.&Apache::lonnet::unescape($name).
967: '</option>';
968: }
969: } split(/\&/,$importdetail));
970:
971: $idx=0;
972: $targetdetail='';
973: my $targetwindow=
974: '<option value="0"> ------- '.&mt('Target Edit Map').' ------- </option>'.
975: join("\n",map {
976: my ($name,$url)=split(/\:/,$resources[$_]);
977: unless ($name) { $name=(split(/\//,$url))[-1]; }
978: unless ($name) { $name='EMPTY'; }
979: $targetdetail.='&'.&Apache::lonnet::escape($name).'='.
980: &Apache::lonnet::escape($url);
981: $idx++;
982: $name=~s/\:/\:/g;
983: '<option value="'.$idx.'">'.$name.'</option>';
984: } @order);
985:
986: # ----------------------------------------------------- Start simple RAT screen
987: my $editscript=&editscript('simple');
988: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,
989: ($env{'environment.remote'} ne 'off')).
990: &Apache::loncommon::help_open_menu('','Sequence_Simple_Editor_Creation','Sequence_Simple_Editor_Creation','',6,'RAT');
991: my %lt=&Apache::lonlocal::texthash(
992: 'sa' => 'Save',
993: 'nt' => 'New Title',
994: 'se' => 'Search',
995: 'im' => 'Import',
996: 'vi' => 'View',
997: 'lm' => 'Load Map',
998: 'ds' => 'Discard Selected',
999: 'ca' => 'Clear All',
1000: 'ta' => 'Temporary Assembly Workspace',
1001: 'rv' => 'Revert to Last Saved',
1002: 'sa' => 'Save',
1003: 'mu' => 'Move Up',
1004: 'md' => 'Move Down',
1005: 're' => 'Rename',
1006: 'as' => 'after selected',
1007: 'cs' => 'Cut selected',
1008: 'ps' => 'Copy selected',
1009: 'pas' => 'Paste after selected',
1010: );
1011: $r->print(<<ENDSMPHEAD);
1012: <html>
1013: <head>
1014: <script>
1015:
1016: $editscript
1017:
1018: function openview(entry) {
1019: var url=unescape((entry.split('='))[1]);
1020: var parts=new Array;
1021: parts=url.split(':');
1022: url=parts.join(':');
1023: if (url) { open(url,'cat'); }
1024: }
1025:
1026: function viewtarget() {
1027: openview((document.forms.simpleedit.targetdetail.value.split('&'))
1028: [document.forms.simpleedit.target.selectedIndex]);
1029: }
1030:
1031: function viewimport() {
1032: openview((document.forms.simpleedit.curimpdetail.value.split('&'))
1033: [document.forms.simpleedit.importsel.selectedIndex]);
1034: }
1035:
1036: function renametarget() {
1037: var selidx=document.forms.simpleedit.target.selectedIndex;
1038: var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
1039: [selidx];
1040: var oldname=unescape((entry.split('='))[0]);
1041: var nameparts=oldname.split(':');
1042: oldname=unescape(nameparts.join(':'));
1043: nameparts=oldname.split('"');
1044: oldname=unescape(nameparts.join('"'));
1045: nameparts=oldname.split(''');
1046: oldname=unescape(nameparts.join("'"));
1047: newtitle=prompt('$lt{'nt'}',oldname);
1048: if (newtitle) {
1049: document.forms.simpleedit.renameres.value=1;
1050: document.forms.simpleedit.renameidx.value=selidx;
1051: document.forms.simpleedit.renametitle.value=newtitle;
1052: document.forms.simpleedit.submit();
1053: }
1054: }
1055:
1056: </script>
1057: </head>
1058: $bodytag
1059: $buttons
1060: <font color=red>$errtext</font>
1061: <form name=simpleedit method=post>
1062: <input type=hidden name=forcesmp value=1>
1063: <input type=hidden name=renameres value=0>
1064: <input type=hidden name=renametitle value=''>
1065: <input type=hidden name=renameidx value=0>
1066: <table>
1067: <tr><th width="40%">$lt{'ta'}</th>
1068: <th> </th>
1069: <th width="40%">File: $url</th></tr>
1070: <tr><td bgcolor="#FFFFCC">
1071: <input type=button onClick="javascript:groupsearch()" value="$lt{'se'}">
1072: <input type=button onClick="javascript:groupimport();" value="$lt{'im'}">
1073: $lt{'as'}
1074: <hr>
1075: <input type=text size=20 name=importmap>
1076: <input type=button
1077: onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
1078: value="Select Map"><input type=submit name=loadmap value="$lt{'lm'}"><hr>
1079: <input type=submit name="discard" value="$lt{'ds'}">
1080: <input type=submit name="clear" value="$lt{'ca'}">
1081: <input type=button onClick="javascript:viewimport()" value="$lt{'vi'}">
1082:
1083: </td><td> </td><td bgcolor="#FFFFCC">
1084:
1085: <input type=button onClick=
1086: "javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}">
1087: <input type=button onClick=
1088: "javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}">
1089: $lt{'as'}
1090: <hr>
1091: <input type=submit name="moveup" value="$lt{'mu'}">
1092: <input type=submit name="movedown" value="$lt{'md'}">
1093: <input type=button onClick="javascript:renametarget()" value="$lt{'re'}">
1094: <hr>$targetmsg
1095: <input type=submit name="revert" value="$lt{'rv'}">
1096: <input type=submit name="save" value="$lt{'sa'}">
1097: <input type=button onClick="javascript:viewtarget()" value="$lt{'vi'}">
1098: </td></tr>
1099:
1100: <tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
1101: $importwindow
1102: </select>
1103: </td>
1104: <td bgcolor="#FFFFAA" align="center">
1105: $lt{'cs'}<br>
1106: <input type=submit name=cut value='<<<'><p>
1107: <hr>
1108: $lt{'ps'}<br>
1109: <input type=submit name=copy value='<--'><p>
1110: <hr>
1111: $lt{'pas'}<br>
1112: <input type=submit name=paste value='-->'>
1113: </td>
1114: <td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
1115: $targetwindow
1116: </select>
1117: </table>
1118: <input type=hidden name=importdetail value="">
1119: <input type=hidden name=curimpdetail value="$importdetail">
1120: <input type=hidden name=targetdetail value="$targetdetail">
1121: <input type=hidden name=impfortarget value="0">
1122: </form>
1123: </body></html>
1124: ENDSMPHEAD
1125: }
1126:
1127: # ----------------------------------------------------------------- No such dir
1128: sub nodir {
1129: my ($r,$dir)=@_;
1130: $dir=~s/^\/home\/\w+\/public\_html//;
1131: $r->print(<<ENDNODIR);
1132: <html>
1133: <body bgcolor='#FFFFFF'>
1134: <h1>No such directory: $dir</h1>
1135: </body>
1136: </html>
1137: ENDNODIR
1138: }
1139:
1140: # ---------------------------------------------------------------- View Handler
1141:
1142: sub viewmap {
1143: my ($r,$url,$adv,$errtext)=@_;
1144: $r->print('<html>'.
1145: &Apache::loncommon::bodytag('Edit Content of a Map').
1146: &Apache::loncommon::help_open_menu('','','','',6,'RAT').
1147: &buttons($adv));
1148: if ($errtext) {
1149: $r->print($errtext.'<hr />');
1150: }
1151: my $idx=0;
1152: $r->print('<h1>'.$url.'</h1>');
1153: if ($adv) {
1154: $r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />');
1155: }
1156: $r->print( '<table border="0" cellspacing="2" cellpadding="4">'.
1157: '<tr bgcolor="#DDDDDD"><th>'.&mt('Type').'</th>'.
1158: '<th>'.&mt('Title in map').'</th>'.
1159: '<th>'.&mt('Filename of resource').'</th>'.
1160: '<th>'.&mt('Link to published resource').'</th>'.
1161: '<th>'.&mt('Link to resource in Construction Space').'</th>'.
1162: '</tr>');
1163: my @backgroundColors = ("#FFFFFF", "#F6F6F6");
1164: foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) {
1165: if (defined($_)) {
1166: $idx++;
1167: my ($title,$url,$cond)=split(/\:/,$_);
1168: if ($cond eq 'cond') { next; }
1169: $title=~s/\&colon\;/\:/g;
1170: $url=~s/\&colon\;/\:/g;
1171: unless ($title) { $title=(split(/\//,$url))[-1] };
1172: unless ($title) { $title='<i>'.&mt('Empty').'</i>'; }
1173: my $resurl = &Apache::lonratsrv::qtescape($url);
1174: my $resfilepath = $Apache::lonnet::perlvar{'lonDocRoot'}.$resurl;
1175: my $filename;
1176: if ($resurl =~ m#/([^/]+)$#) {
1177: $filename = $1;
1178: }
1179: my $cstrurl = $resurl;
1180: $cstrurl =~ s#^/res/[^/]+/([^/]+)/#/priv/$1/#;
1181: my $bgcol = $idx%2;
1182: $r->print('<tr bgcolor='.$backgroundColors[$bgcol].'><td>'.
1183: '<img src="'.&Apache::loncommon::icon($resfilepath).
1184: '" /></td><td>'.&Apache::lonratsrv::qtescape($title).
1185: '</td><td>'.$filename.'</td><td>');
1186: if ($url) {
1187: $r->print('<a href="'.$resurl.'">'.&mt('Resource space').'</a>');
1188: }
1189: $r->print('</td><td>');
1190: if ($url) {
1191: $r->print('<a href="'.$cstrurl.'">'.
1192: &mt('Construction space').'</a>');
1193: }
1194: $r->print('</td></tr>'."\n");
1195: }
1196: }
1197: $r->print('</table>');
1198: $r->print('</body></html>');
1199: }
1200:
1201: # ================================================================ Main Handler
1202:
1203: sub handler {
1204: my $r=shift;
1205: &Apache::loncommon::content_type($r,'text/html');
1206: $r->send_http_header;
1207:
1208: return OK if $r->header_only;
1209: my $target = $env{'form.grade_target'};
1210: if ($target eq 'meta') {
1211: &Apache::loncommon::content_type($r,'text/html');
1212: $r->send_http_header;
1213: return OK;
1214: }
1215:
1216: my $url=$r->uri;
1217: my $fn=&Apache::lonnet::filelocation('',$url);
1218:
1219: my ($dir)=($fn=~/^(.+)\/[^\/]+$/);
1220: unless (-e $dir) {
1221: &nodir($r,$dir);
1222: return OK;
1223: }
1224:
1225: # ------------------------------------------- Determine which tools can be used
1226: my $adv=0;
1227:
1228: unless ($env{'form.forcesmp'}) {
1229: if ($env{'form.forceadv'}) {
1230: $adv=1;
1231: } elsif (my $fh=Apache::File->new($fn)) {
1232: my $allmap=join('',<$fh>);
1233: $adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is);
1234: }
1235: }
1236:
1237: my $errtext='';
1238: my $fatal=0;
1239:
1240: # -------------------------------------------------------------------- Load map
1241: ($errtext,$fatal)=&mapread($fn,$errtext);
1242:
1243: if ($fatal==1) { $adv=1; }
1244:
1245: # ----------------------------------- adv==1 now means "graphical MUST be used"
1246:
1247: if ($env{'form.forceadv'}) {
1248: &ratedt($r,$url);
1249: } elsif ($env{'form.forcesmp'}) {
1250: &smpedt($r,$url,$errtext);
1251: } else {
1252: &viewmap($r,$url,$adv,$errtext);
1253: }
1254: return OK;
1255: }
1256:
1257: 1;
1258: __END__
1259:
1260:
1261:
1262:
1263:
1264:
1265:
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