1: # The LearningOnline Network with CAPA
2: # Edit Handler for RAT Maps
3: #
4: # $Id: lonratedt.pm,v 1.67 2005/06/08 15:44:51 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 $output.'</form><hr>';
449: }
450:
451: # ----------------------------------------------------------- Paste into target
452: # modifies @order, @resources
453:
454: sub pastetarget {
455: my ($after,@which)=@_;
456: my @insertorder=();
457: foreach (@which) {
458: if (defined($_)) {
459: my ($name,$url)=split(/\=/,$_);
460: $name=&Apache::lonnet::unescape($name);
461: $url=&Apache::lonnet::unescape($url);
462: if ($url) {
463: my $idx=$#resources+1;
464: $insertorder[$#insertorder+1]=$idx;
465: my $ext='false';
466: if ($url=~/^http\:\/\//) { $ext='true'; }
467: $url=~s/\:/\:/g;
468: $name=~s/\:/\:/g;
469: $resources[$idx]=$name.':'.$url.':'.$ext.':normal:res';
470: }
471: }
472: }
473: my @oldorder=splice(@order,$after);
474: @order=(@order,@insertorder,@oldorder);
475: }
476:
477: # ------------------------------------------------ Get start and finish correct
478: # modifies @resources
479:
480: sub startfinish {
481: # Remove all start and finish
482: foreach (@order) {
483: my ($name,$url,$ext)=split(/\:/,$resources[$_]);
484: if ($url=~/http\&colon\:\/\//) { $ext='true'; }
485: $resources[$_]=$name.':'.$url.':'.$ext.':normal:res';
486: }
487: # Garbage collection
488: my $stillchange=1;
489: while (($#order>1) && ($stillchange)) {
490: $stillchange=0;
491: for (my $i=0;$i<=$#order;$i++) {
492: my ($name,$url,$ext)=split(/\:/,$resources[$order[$i]]);
493: unless ($url) {
494: # Take out empty resource
495: for (my $j=$i+1;$j<=$#order;$j++) {
496: $order[$j-1]=$order[$j];
497: }
498: $#order--;
499: $stillchange=1;
500: last;
501: }
502: }
503: }
504: # Put in a start resource
505: my ($name,$url,$ext)=split(/\:/,$resources[$order[0]]);
506: $resources[$order[0]]=$name.':'.$url.':'.$ext.':start:res';
507: # Make sure this has at least start and finish
508: if ($#order==0) {
509: $resources[$#resources+1]='::false';
510: $order[1]=$#resources;
511: }
512: # Make the last one a finish resource
513: ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]);
514: $resources[$order[$#order]]=$name.':'.$url.':'.$ext.':finish:res';
515: }
516:
517: # ------------------------------------------------------------------- Store map
518:
519: sub storemap {
520: my $realfn=shift;
521: my $fn=$realfn;
522: # unless this is forced to work from the original file, use a temporary file
523: # instead
524: unless (shift) {
525: $fn=$realfn.'.tmp';
526: unless (-e $fn) {
527: copy($realfn,$fn);
528: }
529: }
530: # store data either into tmp or real file
531: &startfinish();
532: my $output='graphdef<:>no';
533: my $k=1;
534: for (my $i=0; $i<=$#order; $i++) {
535: if (defined($resources[$order[$i]])) {
536: $output.='<&>objcont<:>'.$order[$i].'<:>'.$resources[$order[$i]];
537: }
538: if (defined($resparms[$order[$i]])) {
539: foreach (split('&&&',$resparms[$order[$i]])) {
540: if ($_) {
541: $output.='<&>objparms<:>'.$order[$i].'<:>'.$_;
542: }
543: }
544: }
545: if (defined($order[$i+1])) {
546: if (defined($resources[$order[$i+1]])) {
547: $output.='<&>objlinks<:>'.$k.'<:>'.
548: $order[$i].':'.$order[$i+1].':0';
549: $k++;
550: }
551: }
552: }
553: $output=~s/http\&colon\;\/\///g;
554: $env{'form.output'}=$output;
555: return
556: &Apache::lonratsrv::loadmap($fn,&Apache::lonratsrv::savemap($fn,''));
557: }
558:
559: # ------------------------------------------ Store and get parameters in global
560:
561: sub storeparameter {
562: my ($to,$name,$value,$ptype)=@_;
563: my $newentry='';
564: my $nametype='';
565: foreach (split('&&&',$resparms[$to])) {
566: my ($thistype,$thisname,$thisvalue)=split('___',$_);
567: if ($thisname) {
568: unless ($thisname eq $name) {
569: $newentry.=$_.'&&&';
570: } else {
571: $nametype=$thistype;
572: }
573: }
574: }
575: unless ($ptype) { $ptype=$nametype; }
576: unless ($ptype) { $ptype='string'; }
577: $newentry.=$ptype.'___'.$name.'___'.$value;
578: $resparms[$to]=$newentry;
579: }
580:
581: sub delparameter {
582: my ($to,$name)=@_;
583: my $newentry='';
584: my $nametype='';
585: foreach (split('&&&',$resparms[$to])) {
586: my ($thistype,$thisname,$thisvalue)=split('___',$_);
587: if ($thisname) {
588: unless ($thisname eq $name) {
589: $newentry.=$_.'&&&';
590: }
591: }
592: }
593: $resparms[$to]=$newentry;
594: }
595:
596: sub getparameter {
597: my ($to,$name)=@_;
598: my $value=undef;
599: my $ptype=undef;
600: foreach (split('&&&',$resparms[$to])) {
601: my ($thistype,$thisname,$thisvalue)=split('___',$_);
602: if ($thisname eq $name) {
603: $value=$thisvalue;
604: $ptype=$thistype;
605: }
606: }
607: return ($value,$ptype);
608: }
609:
610: # ----------------------------------------------------------------- Edit script
611: sub editscript {
612: my $mode=shift;
613: my $resurl=&Apache::loncommon::lastresurl();
614: return(<<ENDSCRIPT);
615: var srch;
616: var srchflag=-1; // 1 means currently open
617: // 0 means closed (but has been open)
618: // -1 means never yet opened/defined
619: var srchmode='';
620:
621: var idx;
622: var idxflag=-1; // 1 means currently open
623: // 0 means closed (but has been open)
624: // -1 means never yet opened/defined
625: var idxmode='';
626:
627: // ------------------------------------------------------ Clears indexer window
628: function idxclear() {
629: idx.document.clear();
630: }
631:
632: // ------------------------------------------------------- Clears search window
633: function srchclear() {
634: srch.document.clear();
635: }
636:
637: // ------------------------------------------------------ Closes indexer window
638: function idxclose() {
639: if (idx && !idx.closed) {
640: idxflag=0;
641: idx.close();
642: }
643: }
644:
645: // ------------------------------------------------------- Closes search window
646: function srchclose() {
647: if (srch && !srch.closed) {
648: srchflag=0;
649: srch.close();
650: }
651: }
652:
653: // -------------------------------------------------------- Open indexer window
654: function idxopen(mode) {
655: var options="scrollbars=1,resizable=1,menubar=0";
656: idxmode=mode;
657: idxflag=1;
658: idx=open("$resurl/?launch=1&mode=$mode&catalogmode="+mode,"idxout",options);
659: idx.focus();
660: }
661:
662: // --------------------------------------------------------- Open search window
663: function srchopen(mode) {
664: var options="scrollbars=1,resizable=1,menubar=0";
665: srchmode=mode;
666: srchflag=1;
667: srch=open("/adm/searchcat?launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
668: srch.focus();
669: }
670: // ----------------------------------------------------- launch indexer browser
671: function groupsearch() {
672: srchcheck('groupsearch');
673: }
674:
675: function groupimport() {
676: idxcheck('groupimport');
677: }
678: // ------------------------------------------------------- Do srch status check
679: function srchcheck(mode) {
680: if (!srch || srch.closed || srchmode!=mode) {
681: srchopen(mode);
682: }
683: srch.focus();
684: }
685:
686: // -------------------------------------------------------- Do idx status check
687: function idxcheck(mode) {
688: if (!idx || idx.closed || idxmode!=mode) {
689: idxopen(mode);
690: }
691: idx.focus();
692: }
693:
694:
695: var editbrowser;
696: function openbrowser(formname,elementname,only,omit) {
697: var url = '$resurl/?';
698: if (editbrowser == null) {
699: url += 'launch=1&';
700: }
701: url += 'catalogmode=interactive&';
702: url += 'mode=edit&';
703: url += 'form=' + formname + '&';
704: if (only != null) {
705: url += 'only=' + only + '&';
706: }
707: if (omit != null) {
708: url += 'omit=' + omit + '&';
709: }
710: url += 'element=' + elementname + '';
711: var title = 'Browser';
712: var options = 'scrollbars=1,resizable=1,menubar=0';
713: options += ',width=700,height=600';
714: editbrowser = open(url,title,options,'1');
715: editbrowser.focus();
716: }
717: ENDSCRIPT
718: }
719: # ------------------------------------------------------- Simple edit processor
720:
721: sub smpedt {
722: my ($r,$url,$errtext)=@_;
723: my $buttons=&buttons(2);
724: my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
725: my $targetmsg='';
726: if ($env{'form.save'}) {
727: copy($tmpfn,&Apache::lonnet::filelocation('',$url));
728: unlink($tmpfn);
729: my ($errtext,$fatal)=
730: &mapread(&Apache::lonnet::filelocation('',$url),'');
731: unless ($fatal) {
732: $targetmsg='<b>'.&mt('Saved.').'</b><br />';
733: } else {
734: $targetmsg='<b>'.&mt('An error occured while saving.').'</b><br />';
735: }
736: }
737: if ($env{'form.revert'}) {
738: $targetmsg='<b>'.&mt('Reverted.').'</b><br />';
739: unlink($tmpfn);
740: my ($errtext,$fatal)=
741: &mapread(&Apache::lonnet::filelocation('',$url),'');
742: }
743: if (-e $tmpfn) {
744: $targetmsg=
745: '<b><font color="red">'.&mt('You are working with an unsaved version of your map.').'</font></b><br>';
746: my ($errtext,$fatal)=&mapread($tmpfn,'');
747: }
748: # ---------------------------------------------------------- Process form input
749:
750: my @importselect=&Apache::loncommon::get_env_multiple('form.importsel');
751: my @targetselect=&Apache::loncommon::get_env_multiple('form.target');
752: # ============================================================ Process commands
753:
754: my $targetdetail=$env{'form.targetdetail'};
755: my $importdetail=$env{'form.curimpdetail'};
756:
757: # ---------------------------------------------------- Importing from groupsort
758: if (($env{'form.importdetail'}) && (!$env{'form.impfortarget'})) {
759:
760: $importdetail='';
761: my @curimport=split(/\&/,$env{'form.curimpdetail'});
762:
763: my $lastsel;
764:
765: if (defined($importselect[-1])) {
766: $lastsel=$importselect[-1];
767: } else {
768: $lastsel=$#curimport;
769: }
770:
771: for (my $i=0;$i<=$lastsel;$i++) {
772: my ($name,$url)=split(/\=/,$curimport[$i]);
773: if ($url) {
774: $importdetail.='&'.$name.'='.$url;
775: }
776: }
777:
778: $importdetail.='&'.$env{'form.importdetail'};
779:
780: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
781: my ($name,$url)=split(/\=/,$curimport[$i]);
782: if ($url) {
783: $importdetail.='&'.$name.'='.$url;
784: }
785: }
786: $importdetail=~s/\&+/\&/g;
787: $importdetail=~s/^\&//;
788:
789: # ------------------------------------------------------------------- Clear all
790: } elsif ($env{'form.clear'}) {
791: $importdetail='';
792: # ------------------------------------------------------------ Discard selected
793: } elsif ($env{'form.discard'}) {
794: $importdetail='';
795: my @curimport=split(/\&/,$env{'form.curimpdetail'});
796: foreach (@importselect) {
797: $curimport[$_]='';
798: }
799: for (my $i=0;$i<=$#curimport;$i++) {
800: my ($name,$url)=split(/\=/,$curimport[$i]);
801: if ($url) {
802: $importdetail.='&'.$name.'='.$url;
803: }
804: }
805: # --------------------------------------------------------- Loading another map
806: } elsif ($env{'form.loadmap'}) {
807: $importdetail='';
808: my @curimport=split(/\&/,$env{'form.curimpdetail'});
809:
810: my $lastsel;
811:
812: if (defined($importselect[-1])) {
813: $lastsel=$importselect[-1];
814: } else {
815: $lastsel=$#curimport;
816: }
817:
818: for (my $i=0;$i<=$lastsel;$i++) {
819: my ($name,$url)=split(/\=/,$curimport[$i]);
820: if ($url) {
821: $importdetail.='&'.$name.'='.$url;
822: }
823: }
824:
825: foreach (
826: &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
827: my ($name,$url)=split(/\:/,$_);
828: if ($url) {
829: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
830: &Apache::lonnet::escape($url);
831: }
832: }
833:
834: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
835: my ($name,$url)=split(/\=/,$curimport[$i]);
836: if ($url) {
837: $importdetail.='&'.$name.'='.$url;
838: }
839: }
840: $importdetail=~s/\&+/\&/g;
841: $importdetail=~s/^\&//;
842:
843: # ------------------------------------------------ Groupimport/search to target
844: } elsif ($env{'form.importdetail'}) {
845: my $lastsel;
846: if (defined($targetselect[-1])) {
847: $lastsel=$targetselect[-1];
848: } else {
849: $lastsel=$#order+1;
850: }
851: &pastetarget($lastsel,split(/\&/,$env{'form.importdetail'}));
852: &storemap(&Apache::lonnet::filelocation('',$url));
853: # ------------------------------------------------------------------------- Cut
854: } elsif (($env{'form.cut'}) || ($env{'form.copy'})) {
855: $importdetail='';
856: my @curimport=split(/\&/,$env{'form.curimpdetail'});
857:
858: my $lastsel;
859:
860: if (defined($importselect[-1])) {
861: $lastsel=$importselect[-1];
862: } else {
863: $lastsel=$#curimport;
864: }
865:
866: for (my $i=0;$i<=$lastsel;$i++) {
867: my ($name,$url)=split(/\=/,$curimport[$i]);
868: if ($url) {
869: $importdetail.='&'.$name.'='.$url;
870: }
871: }
872:
873: foreach (@targetselect) {
874: my ($name,$url)=split(/\:/,$resources[$order[$_-1]]);
875: if ($url) {
876: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
877: &Apache::lonnet::escape($url);
878: }
879: }
880:
881: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
882: my ($name,$url)=split(/\=/,$curimport[$i]);
883: if ($url) {
884: $importdetail.='&'.$name.'='.$url;
885: }
886: }
887: $importdetail=~s/\&+/\&/g;
888: $importdetail=~s/^\&//;
889:
890: if ($env{'form.cut'}) {
891: my @neworder=();
892: for (my $i=0;$i<=$#order;$i++) {
893: my $include=1;
894: foreach (@targetselect) {
895: if ($_-1==$i) { $include=0; }
896: }
897: if ($include) { $neworder[$#neworder+1]=$order[$i]; }
898: }
899: @order=@neworder;
900: &storemap(&Apache::lonnet::filelocation('',$url));
901: }
902:
903: # ----------------------------------------------------------------------- Paste
904: } elsif ($env{'form.paste'}) {
905: my $lastsel;
906: if (defined($targetselect[-1])) {
907: $lastsel=$targetselect[-1];
908: } else {
909: $lastsel=$#order+1;
910: }
911: my @newsequence;
912: my @curimport=split(/\&/,$env{'form.curimpdetail'});
913: foreach (@importselect) {
914: $newsequence[$#newsequence+1]=$curimport[$_];
915: }
916: &pastetarget($lastsel,@newsequence);
917: &storemap(&Apache::lonnet::filelocation('',$url));
918: # -------------------------------------------------------------------- Move up
919: } elsif ($env{'form.moveup'}) {
920: foreach (sort @targetselect) {
921: if ($_-1>0) {
922: my $movethis=$order[$_-1];
923: $order[$_-1]=$order[$_-2];
924: $order[$_-2]=$movethis;
925: }
926: }
927: &storemap(&Apache::lonnet::filelocation('',$url));
928: # ------------------------------------------------------------------ Move down
929: } elsif ($env{'form.movedown'}) {
930: foreach (reverse sort @targetselect) {
931: if ($_-1<$#order) {
932: my $movethis=$order[$_-1];
933: $order[$_-1]=$order[$_];
934: $order[$_]=$movethis;
935: }
936: }
937: &storemap(&Apache::lonnet::filelocation('',$url));
938: # --------------------------------------------------------------------- Rename
939: } elsif ($env{'form.renameres'}) {
940: my $residx=$Apache::lonratedt::order[$env{'form.renameidx'}-1];
941: my ($name,@resrest)=split(/\:/,$Apache::lonratedt::resources[$residx]);
942: $name=$env{'form.renametitle'};
943: $name=~s/\:/\&colon\;/g;
944: $Apache::lonratedt::resources[$residx]=$name.':'.join(':',@resrest);
945: &storemap(&Apache::lonnet::filelocation('',$url));
946: }
947: # ------------------------------------------------------------ Assemble windows
948:
949: my $idx=-1;
950: $importdetail='&'.$importdetail;
951: $importdetail=~s/^\&+/\&/;
952: my $importwindow=
953: '<option value="-1"> ---- '.&mt('Import and Paste Area').' ---- </option>'.
954: join("\n",map {
955: $idx++;
956: if ($_) {
957: my ($name,$url)=split(/\=/,$_);
958: unless ($name) { $name=(split(/\//,$url))[-1]; }
959: unless ($name) { $name='EMPTY'; }
960: '<option value="'.$idx.'">'.&Apache::lonnet::unescape($name).
961: '</option>';
962: }
963: } split(/\&/,$importdetail));
964:
965: $idx=0;
966: $targetdetail='';
967: my $targetwindow=
968: '<option value="0"> ------- '.&mt('Target Edit Map').' ------- </option>'.
969: join("\n",map {
970: my ($name,$url)=split(/\:/,$resources[$_]);
971: unless ($name) { $name=(split(/\//,$url))[-1]; }
972: unless ($name) { $name='EMPTY'; }
973: $targetdetail.='&'.&Apache::lonnet::escape($name).'='.
974: &Apache::lonnet::escape($url);
975: $idx++;
976: $name=~s/\:/\:/g;
977: '<option value="'.$idx.'">'.$name.'</option>';
978: } @order);
979:
980: # ----------------------------------------------------- Start simple RAT screen
981: my $editscript=&editscript('simple');
982: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,
983: ($env{'environment.remote'} ne 'off')).
984: &Apache::loncommon::help_open_menu('','Sequence_Simple_Editor_Creation','Sequence_Simple_Editor_Creation','',6,'RAT');
985: my %lt=&Apache::lonlocal::texthash(
986: 'sa' => 'Save',
987: 'nt' => 'New Title',
988: 'se' => 'Search',
989: 'im' => 'Import',
990: 'vi' => 'View',
991: 'lm' => 'Load Map',
992: 'ds' => 'Discard Selected',
993: 'ca' => 'Clear All',
994: 'ta' => 'Temporary Assembly Workspace',
995: 'rv' => 'Revert to Last Saved',
996: 'sa' => 'Save',
997: 'mu' => 'Move Up',
998: 'md' => 'Move Down',
999: 're' => 'Rename',
1000: 'as' => 'after selected',
1001: 'cs' => 'Cut selected',
1002: 'ps' => 'Copy selected',
1003: 'pas' => 'Paste after selected',
1004: );
1005: $r->print(<<ENDSMPHEAD);
1006: <html>
1007: <head>
1008: <script>
1009:
1010: $editscript
1011:
1012: function openview(entry) {
1013: var url=unescape((entry.split('='))[1]);
1014: var parts=new Array;
1015: parts=url.split(':');
1016: url=parts.join(':');
1017: if (url) { open(url,'cat'); }
1018: }
1019:
1020: function viewtarget() {
1021: openview((document.forms.simpleedit.targetdetail.value.split('&'))
1022: [document.forms.simpleedit.target.selectedIndex]);
1023: }
1024:
1025: function viewimport() {
1026: openview((document.forms.simpleedit.curimpdetail.value.split('&'))
1027: [document.forms.simpleedit.importsel.selectedIndex]);
1028: }
1029:
1030: function renametarget() {
1031: var selidx=document.forms.simpleedit.target.selectedIndex;
1032: var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
1033: [selidx];
1034: var oldname=unescape((entry.split('='))[0]);
1035: var nameparts=oldname.split(':');
1036: oldname=unescape(nameparts.join(':'));
1037: nameparts=oldname.split('"');
1038: oldname=unescape(nameparts.join('"'));
1039: nameparts=oldname.split(''');
1040: oldname=unescape(nameparts.join("'"));
1041: newtitle=prompt('$lt{'nt'}',oldname);
1042: if (newtitle) {
1043: document.forms.simpleedit.renameres.value=1;
1044: document.forms.simpleedit.renameidx.value=selidx;
1045: document.forms.simpleedit.renametitle.value=newtitle;
1046: document.forms.simpleedit.submit();
1047: }
1048: }
1049:
1050: </script>
1051: </head>
1052: $bodytag
1053: $buttons
1054: <font color=red>$errtext</font>
1055: <form name=simpleedit method=post>
1056: <input type=hidden name=forcesmp value=1>
1057: <input type=hidden name=renameres value=0>
1058: <input type=hidden name=renametitle value=''>
1059: <input type=hidden name=renameidx value=0>
1060: <table>
1061: <tr><th width="40%">$lt{'ta'}</th>
1062: <th> </th>
1063: <th width="40%">File: $url</th></tr>
1064: <tr><td bgcolor="#FFFFCC">
1065: <input type=button onClick="javascript:groupsearch()" value="$lt{'se'}">
1066: <input type=button onClick="javascript:groupimport();" value="$lt{'im'}">
1067: $lt{'as'}
1068: <hr>
1069: <input type=text size=20 name=importmap>
1070: <input type=button
1071: onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
1072: value="Select Map"><input type=submit name=loadmap value="$lt{'lm'}"><hr>
1073: <input type=submit name="discard" value="$lt{'ds'}">
1074: <input type=submit name="clear" value="$lt{'ca'}">
1075: <input type=button onClick="javascript:viewimport()" value="$lt{'vi'}">
1076:
1077: </td><td> </td><td bgcolor="#FFFFCC">
1078:
1079: <input type=button onClick=
1080: "javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}">
1081: <input type=button onClick=
1082: "javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}">
1083: $lt{'as'}
1084: <hr>
1085: <input type=submit name="moveup" value="$lt{'mu'}">
1086: <input type=submit name="movedown" value="$lt{'md'}">
1087: <input type=button onClick="javascript:renametarget()" value="$lt{'re'}">
1088: <hr>$targetmsg
1089: <input type=submit name="revert" value="$lt{'rv'}">
1090: <input type=submit name="save" value="$lt{'sa'}">
1091: <input type=button onClick="javascript:viewtarget()" value="$lt{'vi'}">
1092: </td></tr>
1093:
1094: <tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
1095: $importwindow
1096: </select>
1097: </td>
1098: <td bgcolor="#FFFFAA" align="center">
1099: $lt{'cs'}<br>
1100: <input type=submit name=cut value='<<<'><p>
1101: <hr>
1102: $lt{'ps'}<br>
1103: <input type=submit name=copy value='<--'><p>
1104: <hr>
1105: $lt{'pas'}<br>
1106: <input type=submit name=paste value='-->'>
1107: </td>
1108: <td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
1109: $targetwindow
1110: </select>
1111: </table>
1112: <input type=hidden name=importdetail value="">
1113: <input type=hidden name=curimpdetail value="$importdetail">
1114: <input type=hidden name=targetdetail value="$targetdetail">
1115: <input type=hidden name=impfortarget value="0">
1116: </form>
1117: </body></html>
1118: ENDSMPHEAD
1119: }
1120:
1121: # ----------------------------------------------------------------- No such dir
1122: sub nodir {
1123: my ($r,$dir)=@_;
1124: $dir=~s/^\/home\/\w+\/public\_html//;
1125: $r->print(<<ENDNODIR);
1126: <html>
1127: <body bgcolor='#FFFFFF'>
1128: <h1>No such directory: $dir</h1>
1129: </body>
1130: </html>
1131: ENDNODIR
1132: }
1133:
1134: # ---------------------------------------------------------------- View Handler
1135:
1136: sub viewmap {
1137: my ($r,$url,$adv,$errtext)=@_;
1138: $r->print('<html>'.
1139: &Apache::loncommon::bodytag('Edit Content of a Map').
1140: &Apache::loncommon::help_open_menu('','','','',6,'RAT').
1141: &buttons($adv));
1142: if ($errtext) {
1143: $r->print($errtext.'<hr />');
1144: }
1145: my $idx=0;
1146: $r->print('<h1>'.$url.'</h1>');
1147: if ($adv) {
1148: $r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />');
1149: }
1150: $r->print( '<table border="0" cellspacing="2" cellpadding="4">'.
1151: '<tr bgcolor="#DDDDDD"><th>'.&mt('Type').'</th>'.
1152: '<th>'.&mt('Title in map').'</th>'.
1153: '<th>'.&mt('Filename of resource').'</th>'.
1154: '<th>'.&mt('Link to published resource').'</th>'.
1155: '<th>'.&mt('Link to resource in Construction Space').'</th>'.
1156: '</tr>');
1157: my @backgroundColors = ("#FFFFFF", "#F6F6F6");
1158: foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) {
1159: if (defined($_)) {
1160: $idx++;
1161: my ($title,$url,$cond)=split(/\:/,$_);
1162: if ($cond eq 'cond') { next; }
1163: $title=~s/\&colon\;/\:/g;
1164: $url=~s/\&colon\;/\:/g;
1165: unless ($title) { $title=(split(/\//,$url))[-1] };
1166: unless ($title) { $title='<i>'.&mt('Empty').'</i>'; }
1167: my $resurl = &Apache::lonratsrv::qtescape($url);
1168: my $resfilepath = $Apache::lonnet::perlvar{'lonDocRoot'}.$resurl;
1169: my $filename;
1170: if ($resurl =~ m#/([^/]+)$#) {
1171: $filename = $1;
1172: }
1173: my $cstrurl = $resurl;
1174: $cstrurl =~ s#^/res/[^/]+/([^/]+)/#/priv/$1/#;
1175: my $bgcol = $idx%2;
1176: $r->print('<tr bgcolor='.$backgroundColors[$bgcol].'><td>'.
1177: '<img src="'.&Apache::loncommon::icon($resfilepath).
1178: '" /></td><td>'.&Apache::lonratsrv::qtescape($title).
1179: '</td><td>'.$filename.'</td><td>');
1180: if ($url) {
1181: if (-e $resfilepath) {
1182: $r->print('<a href="'.$resurl.'">'.&mt('Resource space').'</a>');
1183: } else {
1184: $r->print(&mt('unpublished'));
1185: }
1186: }
1187: $r->print('</td><td>');
1188: if ($url) {
1189: $r->print('<a href="'.$cstrurl.'">'.
1190: &mt('Construction space').'</a>');
1191: }
1192: $r->print('</td></tr>'."\n");
1193: }
1194: }
1195: $r->print('</table>');
1196: $r->print('</body></html>');
1197: }
1198:
1199: # ================================================================ Main Handler
1200:
1201: sub handler {
1202: my $r=shift;
1203: &Apache::loncommon::content_type($r,'text/html');
1204: $r->send_http_header;
1205:
1206: return OK if $r->header_only;
1207: my $target = $env{'form.grade_target'};
1208: if ($target eq 'meta') {
1209: &Apache::loncommon::content_type($r,'text/html');
1210: $r->send_http_header;
1211: return OK;
1212: }
1213:
1214: my $url=$r->uri;
1215: my $fn=&Apache::lonnet::filelocation('',$url);
1216:
1217: my ($dir)=($fn=~/^(.+)\/[^\/]+$/);
1218: unless (-e $dir) {
1219: &nodir($r,$dir);
1220: return OK;
1221: }
1222:
1223: # ------------------------------------------- Determine which tools can be used
1224: my $adv=0;
1225:
1226: unless ($env{'form.forcesmp'}) {
1227: if ($env{'form.forceadv'}) {
1228: $adv=1;
1229: } elsif (my $fh=Apache::File->new($fn)) {
1230: my $allmap=join('',<$fh>);
1231: $adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is);
1232: }
1233: }
1234:
1235: my $errtext='';
1236: my $fatal=0;
1237:
1238: # -------------------------------------------------------------------- Load map
1239: ($errtext,$fatal)=&mapread($fn,$errtext);
1240:
1241: if ($fatal==1) { $adv=1; }
1242:
1243: # ----------------------------------- adv==1 now means "graphical MUST be used"
1244:
1245: if ($env{'form.forceadv'}) {
1246: &ratedt($r,$url);
1247: } elsif ($env{'form.forcesmp'}) {
1248: &smpedt($r,$url,$errtext);
1249: } else {
1250: &viewmap($r,$url,$adv,$errtext);
1251: }
1252: return OK;
1253: }
1254:
1255: 1;
1256: __END__
1257:
1258:
1259:
1260:
1261:
1262:
1263:
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