1: # The LearningOnline Network with CAPA
2: # Edit Handler for RAT Maps
3: #
4: # $Id: lonratedt.pm,v 1.50 2003/12/12 15:19:29 sakharuk 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: # (TeX Content Handler
29: #
30: # 05/29/00,05/30 Gerd Kortemeyer)
31: # 7/1,6/30 Gerd Kortemeyer
32:
33: package Apache::lonratedt;
34:
35: =pod
36:
37: =head1 NAME
38:
39: Apache::lonratedt: advanced resource assembly tool
40:
41: =head1 SYNOPSIS
42:
43: lonratedt provides the routines and the handler for the Advanced
44: Resource Assembly Tool (RAT), and ties the various pieces together
45: with Javascript.
46:
47: =head1 OVERVIEW
48:
49: =head2 Map Representation
50:
51: =begin latex
52:
53: %
54: \begin{figure}
55: \begin{center}\includegraphics[%
56: width=0.55\paperwidth,bb = 0 0 200 100, draft, type=eps]{Map_Example}\end{center}
57:
58:
59: \caption{\label{Map_In_Advanced_Editor}Example of a Map in the Advanced Editor}
60: \end{figure}
61: %
62: \begin{figure}
63: \begin{lyxcode}
64: <map>
65:
66: ~~<resource~id=\char`\"{}1\char`\"{}
67:
68: ~~~~src=\char`\"{}/res/msu/korte/phy231welcome.html\char`\"{}
69:
70: ~~~~type=\char`\"{}start\char`\"{}
71:
72: ~~~~title=\char`\"{}Start\char`\"{}>
73:
74: ~~~~</resource>
75:
76: ~~<resource~id=\char`\"{}2\char`\"{}
77:
78: ~~~~src=\char`\"{}\char`\"{}~type=\char`\"{}finish\char`\"{}
79:
80: ~~~~title=\char`\"{}Finish\char`\"{}>
81:
82: ~~~~</resource>
83:
84: ~~<resource~id=\char`\"{}6\char`\"{}
85:
86: ~~~~src=\char`\"{}/res/msu/korte/tests/units.problem\char`\"{}
87:
88: ~~~~type=\char`\"{}mandatory\char`\"{}
89:
90: ~~~~title=\char`\"{}Physical~Units~Test\char`\"{}>
91:
92: ~~~~</resource>
93:
94: ~~<resource~id=\char`\"{}9\char`\"{}
95:
96: ~~~~src=\char`\"{}/res/msu/korte/chapters/onedim.sequence\char`\"{}
97:
98: ~~~~title=\char`\"{}Motion~in~One~Dimension\char`\"{}>
99:
100: ~~~~</resource>
101:
102: ~~<resource~id=\char`\"{}11\char`\"{}
103:
104: ~~~~src=\char`\"{}/res/msu/bauer/bridges/units.sequence\char`\"{}
105:
106: ~~~~title=\char`\"{}Physical~Units~Refresher\char`\"{}>
107:
108: ~~~~</resource>
109:
110: ~~<condition~id=\char`\"{}19\char`\"{}
111:
112: ~~~~type=\char`\"{}stop\char`\"{}
113:
114: ~~~~value=\char`\"{}user.assessments{[}this./res/msu/korte/tests/units.problem{]}.status=solved\char`\"{}>
115:
116: ~~~~</condition>
117:
118: ~~<link~from=\char`\"{}1\char`\"{}~to=\char`\"{}6\char`\"{}></link>
119:
120: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}9\char`\"{}~condition=\char`\"{}19\char`\"{}></link>
121:
122: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}11\char`\"{}></link>
123:
124: ~~<link~from=\char`\"{}11\char`\"{}~to=\char`\"{}6\char`\"{}></link>
125:
126: ~~</map>
127: \end{lyxcode}
128:
129: \caption{\label{XML}XML for Map in Figure \ref{Map_In_Advanced_Editor}}
130: \end{figure}
131:
132: =end latex
133:
134: Fig. "XML for Map in Figure" shows the XML representation of the
135: resource map shown in Fig. "Example of a Map in the Advanced Editor",
136: which is the format in which maps are stored. In the figure, however,
137: additional graphical map layout information generated by the Advanced
138: Resource Assembly Tool is not displayed. This graphical information is
139: optional to re-generate the same graphical layout when the map is
140: brought up again in the Resource Assembly Tool, and is not needed for
141: any other system functionality.
142:
143: Maps can be generated by tools other than the Resource Assembly
144: Tool. In particular, an author might have some other representation of
145: a course sequence, which can be converted into a map using scripts. If
146: this map then were to be brought up in the Resource Assembly Tool, the
147: Tool would automatically generate a graphical layout for it. Each
148: entry of the map (resources, conditions and links) is stored in a
149: separate tag.
150:
151: Resources and conditionsX<conditions> have to have unique ID
152: numbers. These numbers are automatically generated by the Resource
153: Assembly Tool when the entry is first created, or added to the entries
154: when a map generated outside the Resource Assembly Tool is first
155: retrieved. They can also be assigned by custom scripts or added in by
156: hand.
157:
158: In the XML example, entry 1 is the start resource of the map. When
159: this map is accessed, the source (src) URL of this tag will be the
160: first resource rendered. Entry 2 is the finish resource of this
161: map. This resource will be the last resource in the sequence of
162: resources. Entry 6 is a problem resource with the given URL and title,
163: as well as the priority "mandatory". Entry 19 is a condition, which is
164: used by the link between entries 6, the problem, and 9, a
165: sequence. I<The final syntax for conditions has not yet been
166: determined.>
167:
168: =cut
169:
170: use strict;
171: use Apache::Constants qw(:common);
172: use Apache::lonnet;
173: use Apache::lonratsrv;
174: use Apache::lonsequence;
175: use Apache::loncommon;
176: use Apache::lonlocal;
177: use File::Copy;
178:
179: use vars qw(@order @resources);
180:
181:
182: # Mapread read maps into global arrays @links and @resources, determines status
183: # sets @order - pointer to resources in right order
184: # sets @resources - array with the resources with correct idx
185: #
186: sub mapread {
187: my $fn=shift;
188:
189: my @links;
190: undef @links;
191: undef @resources;
192: undef @order;
193: @resources=('');
194: @order=();
195:
196: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
197: if ($errtext) { return ($errtext,2); }
198:
199: # -------------------------------------------------------------------- Read map
200: foreach (split(/\<\&\>/,$outtext)) {
201: my ($command,$number,$content)=split(/\<\:\>/,$_);
202: if ($command eq 'objcont') {
203: $resources[$number]=$content;
204: }
205: if ($command eq 'objlinks') {
206: $links[$number]=$content;
207: }
208: if ($command eq 'objparms') {
209: return(&mt('Map has resource parameters. Use advanced editor.'),1);
210: }
211: }
212: # ------------------------------------------------------- Is this a linear map?
213: my @starters=();
214: my @endings=();
215: undef @starters;
216: undef @endings;
217:
218: foreach (@links) {
219: if (defined($_)) {
220: my ($start,$end,$cond)=split(/\:/,$_);
221: if ((defined($starters[$start])) || (defined($endings[$end]))) {
222: return
223: (&mt('Map has branchings. Use advanced editor.'),1);
224: }
225: $starters[$start]=1;
226: $endings[$end]=1;
227: if ($cond) {
228: return
229: (&mt('Map has conditions. Use advanced editor.'),1);
230: }
231: }
232:
233: }
234: for (my $i=1; $i<=$#resources; $i++) {
235: if (defined($resources[$i])) {
236: unless (($starters[$i]) || ($endings[$i])) {
237: return
238: (&mt('Map has unconnected resources. Use advanced editor.'),1);
239: }
240: }
241: }
242: # ---------------------------------------------- Did we just read an empty map?
243: if ($#resources<1) {
244: undef $resources[0];
245: $resources[1]=':::start';
246: $resources[2]=':::finish';
247: }
248: # -------------------------------------------------- This is a linear map, sort
249:
250: my $startidx=0;
251: my $endidx=0;
252: for (my $i=0; $i<=$#resources; $i++) {
253: if (defined($resources[$i])) {
254: my ($title,$url,$ext,$type)=split(/\:/,$resources[$i]);
255: if ($type eq 'start') { $startidx=$i; }
256: if ($type eq 'finish') { $endidx=$i; }
257: }
258: }
259: my $k=0;
260: my $currentidx=$startidx;
261: $order[$k]=$currentidx;
262: for (my $i=0; $i<=$#resources; $i++) {
263: foreach (@links) {
264: my ($start,$end)=split(/\:/,$_);
265: if ($start==$currentidx) {
266: $currentidx=$end;
267: $k++;
268: $order[$k]=$currentidx;
269: last;
270: }
271: }
272: if ($currentidx==$endidx) { last; }
273: }
274: return $errtext;
275: }
276:
277: # ---------------------------------------------- Read a map as well as possible
278: # Also used by the sequence handler
279: # Call lonsequence::attemptread to read from resource space
280: #
281: sub attemptread {
282: my $fn=shift;
283:
284: my @links;
285: undef @links;
286: my @theseres;
287: undef @theseres;
288:
289: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
290: if ($errtext) { return @theseres }
291:
292: # -------------------------------------------------------------------- Read map
293: foreach (split(/\<\&\>/,$outtext)) {
294: my ($command,$number,$content)=split(/\<\:\>/,$_);
295: if ($command eq 'objcont') {
296: $theseres[$number]=$content;
297: }
298: if ($command eq 'objlinks') {
299: $links[$number]=$content;
300: }
301: }
302:
303: # --------------------------------------------------------------- Sort, sort of
304:
305: my @objsort=();
306: undef @objsort;
307:
308: my @data1=();
309: my @data2=();
310: undef @data1;
311: undef @data2;
312:
313: my $k;
314: my $kj;
315: my $j;
316: my $ij;
317:
318: for ($k=1;$k<=$#theseres;$k++) {
319: if (defined($theseres[$k])) {
320: $objsort[$#objsort+1]=$k;
321: }
322: }
323:
324: for ($k=1;$k<=$#links;$k++) {
325: if (defined($links[$k])) {
326: @data1=split(/\:/,$links[$k]);
327: $kj=-1;
328: for (my $j=0;$j<=$#objsort;$j++) {
329: if ((split(/\:/,$objsort[$j]))[0]==$data1[0]) {
330: $kj=$j;
331: }
332: }
333: if ($kj!=-1) { $objsort[$kj].=':'.$data1[1]; }
334: }
335: }
336: for ($k=0;$k<=$#objsort;$k++) {
337: for ($j=0;$j<=$#objsort;$j++) {
338: if ($k!=$j) {
339: @data1=split(/\:/,$objsort[$k]);
340: @data2=split(/\:/,$objsort[$j]);
341: my $dol=$#data1+1;
342: my $dtl=$#data2+1;
343: if ($dol+$dtl<1000) {
344: for ($kj=1;$kj<$dol;$kj++) {
345: if ($data1[$kj]==$data2[0]) {
346: for ($ij=1;$ij<$dtl;$ij++) {
347: $data1[$#data1+1]=$data2[$ij];
348: }
349: }
350: }
351: for ($kj=1;$kj<$dtl;$kj++) {
352: if ($data2[$kj]==$data1[0]) {
353: for ($ij=1;$ij<$dol;$ij++) {
354: $data2[$#data2+1]=$data1[$ij];
355: }
356: }
357: }
358: $objsort[$k]=join(':',@data1);
359: $objsort[$j]=join(':',@data2);
360: }
361: }
362: }
363: }
364: # ---------------------------------------------------------------- Now sort out
365:
366: @objsort=sort {
367: my @data1=split(/\:/,$a);
368: my @data2=split(/\:/,$b);
369: my $rvalue=0;
370: my $k;
371: for ($k=1;$k<=$#data1;$k++) {
372: if ($data1[$k]==$data2[0]) { $rvalue--; }
373: }
374: for ($k=1;$k<=$#data2;$k++) {
375: if ($data2[$k]==$data1[0]) { $rvalue++; }
376: }
377: if ($rvalue==0) { $rvalue=$#data2-$#data1; }
378: $rvalue;
379: } @objsort;
380:
381: my @outres=();
382: undef @outres;
383:
384: for ($k=0;$k<=$#objsort;$k++) {
385: $outres[$k]=$theseres[(split(/\:/,$objsort[$k]))[0]];
386: }
387: return @outres;
388: }
389:
390: # --------------------------------------------------------- Build up RAT screen
391: sub ratedt {
392: my ($r,$url)=@_;
393: $r->print(<<ENDDOCUMENT);
394:
395: <html>
396: <head>
397: <script language="JavaScript">
398: var flag=0;
399: </script>
400: </head>
401: <frameset rows="1,50,*" border=0>
402: <frame name=server src="$url/loadonly/ratserver" noresize noscroll>
403: <frame name=code src="/adm/rat/code.html">
404: <frame name=mapout src="/adm/rat/map.html">
405: </frameset>
406: </html>
407:
408: ENDDOCUMENT
409: }
410:
411: # ---------------------------------------------------------------- Make buttons
412:
413: sub buttons {
414: my $adv=shift;
415: my $output='<form method=post>';
416: if ($adv==1) {
417: $output.='<input type=submit name=forceadv value="'.&mt('Edit').'">';
418: } else {
419: unless ($adv==2) {
420: $output.='<input type=submit name=forcesmp value="'.&mt('Simple Edit').'">';
421: }
422: $output.='<input type=submit name=forceadv value="'.&mt('Advanced Edit').'">';
423: }
424: return $output.'</form><hr>';
425: }
426:
427: # ----------------------------------------------------------- Paste into target
428: # modifies @order, @resources
429:
430: sub pastetarget {
431: my ($after,@which)=@_;
432: my @insertorder=();
433: foreach (@which) {
434: if (defined($_)) {
435: my ($name,$url)=split(/\=/,$_);
436: $name=&Apache::lonnet::unescape($name);
437: $url=&Apache::lonnet::unescape($url);
438: if ($url) {
439: my $idx=$#resources+1;
440: $insertorder[$#insertorder+1]=$idx;
441: my $ext='false';
442: if ($url=~/^http\:\/\//) { $ext='true'; }
443: $url=~s/\:/\:/g;
444: $name=~s/\:/\:/g;
445: $resources[$idx]=$name.':'.$url.':'.$ext.':normal:res';
446: }
447: }
448: }
449: my @oldorder=splice(@order,$after);
450: @order=(@order,@insertorder,@oldorder);
451: }
452:
453: # ------------------------------------------------ Get start and finish correct
454: # modifies @resources
455:
456: sub startfinish {
457: # Remove all start and finish
458: foreach (@order) {
459: my ($name,$url,$ext)=split(/\:/,$resources[$_]);
460: if ($url=~/http\&colon\:\/\//) { $ext='true'; }
461: $resources[$_]=$name.':'.$url.':'.$ext.':normal:res';
462: }
463: # Garbage collection
464: my $stillchange=1;
465: while (($#order>1) && ($stillchange)) {
466: $stillchange=0;
467: for (my $i=0;$i<=$#order;$i++) {
468: my ($name,$url,$ext)=split(/\:/,$resources[$order[$i]]);
469: unless ($url) {
470: # Take out empty resource
471: for (my $j=$i+1;$j<=$#order;$j++) {
472: $order[$j-1]=$order[$j];
473: }
474: $#order--;
475: $stillchange=1;
476: last;
477: }
478: }
479: }
480: # Put in a start resource
481: my ($name,$url,$ext)=split(/\:/,$resources[$order[0]]);
482: $resources[$order[0]]=$name.':'.$url.':'.$ext.':start:res';
483: # Make sure this has at least start and finish
484: if ($#order==0) {
485: $resources[$#resources+1]='::false';
486: $order[1]=$#resources;
487: }
488: # Make the last one a finish resource
489: ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]);
490: $resources[$order[$#order]]=$name.':'.$url.':'.$ext.':finish:res';
491: }
492:
493: # ------------------------------------------------------------------- Store map
494:
495: sub storemap {
496: my $realfn=shift;
497: my $fn=$realfn;
498: # unless this is forced to work from the original file, use a temporary file
499: # instead
500: unless (shift) {
501: $fn=$realfn.'.tmp';
502: unless (-e $fn) {
503: copy($realfn,$fn);
504: }
505: }
506: # store data either into tmp or real file
507: &startfinish();
508: my $output='graphdef<:>no';
509: my $k=1;
510: for (my $i=0; $i<=$#order; $i++) {
511: if (defined($resources[$order[$i]])) {
512: $output.='<&>objcont<:>'.$order[$i].'<:>'.$resources[$order[$i]];
513: }
514: if (defined($order[$i+1])) {
515: if (defined($resources[$order[$i+1]])) {
516: $output.='<&>objlinks<:>'.$k.'<:>'.
517: $order[$i].':'.$order[$i+1].':0';
518: $k++;
519: }
520: }
521: }
522: $output=~s/http\&colon\;\/\///g;
523: $ENV{'form.output'}=$output;
524: return
525: &Apache::lonratsrv::loadmap($fn,&Apache::lonratsrv::savemap($fn,''));
526: }
527:
528: sub editscript {
529: my $mode=shift;
530: return(<<ENDSCRIPT);
531: var srch;
532: var srchflag=-1; // 1 means currently open
533: // 0 means closed (but has been open)
534: // -1 means never yet opened/defined
535: var srchmode='';
536:
537: var idx;
538: var idxflag=-1; // 1 means currently open
539: // 0 means closed (but has been open)
540: // -1 means never yet opened/defined
541: var idxmode='';
542:
543: // ------------------------------------------------------ Clears indexer window
544: function idxclear() {
545: idx.document.clear();
546: }
547:
548: // ------------------------------------------------------- Clears search window
549: function srchclear() {
550: srch.document.clear();
551: }
552:
553: // ------------------------------------------------------ Closes indexer window
554: function idxclose() {
555: if (idx && !idx.closed) {
556: idxflag=0;
557: idx.close();
558: }
559: }
560:
561: // ------------------------------------------------------- Closes search window
562: function srchclose() {
563: if (srch && !srch.closed) {
564: srchflag=0;
565: srch.close();
566: }
567: }
568:
569: // -------------------------------------------------------- Open indexer window
570: function idxopen(mode) {
571: var options="scrollbars=1,resizable=1,menubar=0";
572: idxmode=mode;
573: idxflag=1;
574: idx=open("/res/?launch=1&mode=$mode&catalogmode="+mode,"idxout",options);
575: idx.focus();
576: }
577:
578: // --------------------------------------------------------- Open search window
579: function srchopen(mode) {
580: var options="scrollbars=1,resizable=1,menubar=0";
581: srchmode=mode;
582: srchflag=1;
583: srch=open("/adm/searchcat?launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
584: srch.focus();
585: }
586: // ----------------------------------------------------- launch indexer browser
587: function groupsearch() {
588: srchcheck('groupsearch');
589: }
590:
591: function groupimport() {
592: idxcheck('groupimport');
593: }
594: // ------------------------------------------------------- Do srch status check
595: function srchcheck(mode) {
596: if (!srch || srch.closed || srchmode!=mode) {
597: srchopen(mode);
598: }
599: srch.focus();
600: }
601:
602: // -------------------------------------------------------- Do idx status check
603: function idxcheck(mode) {
604: if (!idx || idx.closed || idxmode!=mode) {
605: idxopen(mode);
606: }
607: idx.focus();
608: }
609:
610:
611: var editbrowser;
612: function openbrowser(formname,elementname,only,omit) {
613: var url = '/res/?';
614: if (editbrowser == null) {
615: url += 'launch=1&';
616: }
617: url += 'catalogmode=interactive&';
618: url += 'mode=edit&';
619: url += 'form=' + formname + '&';
620: if (only != null) {
621: url += 'only=' + only + '&';
622: }
623: if (omit != null) {
624: url += 'omit=' + omit + '&';
625: }
626: url += 'element=' + elementname + '';
627: var title = 'Browser';
628: var options = 'scrollbars=1,resizable=1,menubar=0';
629: options += ',width=700,height=600';
630: editbrowser = open(url,title,options,'1');
631: editbrowser.focus();
632: }
633: ENDSCRIPT
634: }
635: # ------------------------------------------------------- Simple edit processor
636:
637: sub smpedt {
638: my ($r,$url,$errtext)=@_;
639: my $buttons=&buttons(2);
640: my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
641: my $targetmsg='';
642: if ($ENV{'form.save'}) {
643: $targetmsg='<b>Saving ...</b><br>';
644: copy($tmpfn,&Apache::lonnet::filelocation('',$url));
645: unlink($tmpfn);
646: my ($errtext,$fatal)=
647: &mapread(&Apache::lonnet::filelocation('',$url),'');
648: }
649: if ($ENV{'form.revert'}) {
650: $targetmsg='<b>Reverting ...</b><br>';
651: unlink($tmpfn);
652: my ($errtext,$fatal)=
653: &mapread(&Apache::lonnet::filelocation('',$url),'');
654: }
655: if (-e $tmpfn) {
656: $targetmsg=
657: '<b><font color="red">'.&mt('You are working with an unsaved version of your map.').'</font></b><br>';
658: my ($errtext,$fatal)=&mapread($tmpfn,'');
659: }
660: # ---------------------------------------------------------- Process form input
661:
662: my @importselect=();
663: my @targetselect=();
664: undef @importselect;
665: undef @targetselect;
666: if (defined($ENV{'form.importsel'})) {
667: if (ref($ENV{'form.importsel'})) {
668: @importselect=sort(@{$ENV{'form.importsel'}});
669: } else {
670: @importselect=($ENV{'form.importsel'});
671: }
672: }
673: if (defined($ENV{'form.target'})) {
674: if (ref($ENV{'form.target'})) {
675: @targetselect=sort(@{$ENV{'form.target'}});
676: } else {
677: @targetselect=($ENV{'form.target'});
678: }
679: }
680: # ============================================================ Process commands
681:
682: my $targetdetail=$ENV{'form.targetdetail'};
683: my $importdetail=$ENV{'form.curimpdetail'};
684:
685: # ---------------------------------------------------- Importing from groupsort
686: if (($ENV{'form.importdetail'}) && (!$ENV{'form.impfortarget'})) {
687:
688: $importdetail='';
689: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
690:
691: my $lastsel;
692:
693: if (defined($importselect[-1])) {
694: $lastsel=$importselect[-1];
695: } else {
696: $lastsel=$#curimport;
697: }
698:
699: for (my $i=0;$i<=$lastsel;$i++) {
700: my ($name,$url)=split(/\=/,$curimport[$i]);
701: if ($url) {
702: $importdetail.='&'.$name.'='.$url;
703: }
704: }
705:
706: $importdetail.='&'.$ENV{'form.importdetail'};
707:
708: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
709: my ($name,$url)=split(/\=/,$curimport[$i]);
710: if ($url) {
711: $importdetail.='&'.$name.'='.$url;
712: }
713: }
714: $importdetail=~s/\&+/\&/g;
715: $importdetail=~s/^\&//;
716:
717: # ------------------------------------------------------------------- Clear all
718: } elsif ($ENV{'form.clear'}) {
719: $importdetail='';
720: # ------------------------------------------------------------ Discard selected
721: } elsif ($ENV{'form.discard'}) {
722: $importdetail='';
723: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
724: foreach (@importselect) {
725: $curimport[$_]='';
726: }
727: for (my $i=0;$i<=$#curimport;$i++) {
728: my ($name,$url)=split(/\=/,$curimport[$i]);
729: if ($url) {
730: $importdetail.='&'.$name.'='.$url;
731: }
732: }
733: # --------------------------------------------------------- Loading another map
734: } elsif ($ENV{'form.loadmap'}) {
735: $importdetail='';
736: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
737:
738: my $lastsel;
739:
740: if (defined($importselect[-1])) {
741: $lastsel=$importselect[-1];
742: } else {
743: $lastsel=$#curimport;
744: }
745:
746: for (my $i=0;$i<=$lastsel;$i++) {
747: my ($name,$url)=split(/\=/,$curimport[$i]);
748: if ($url) {
749: $importdetail.='&'.$name.'='.$url;
750: }
751: }
752:
753: foreach (
754: &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$ENV{'form.importmap'}))) {
755: my ($name,$url)=split(/\:/,$_);
756: if ($url) {
757: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
758: &Apache::lonnet::escape($url);
759: }
760: }
761:
762: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
763: my ($name,$url)=split(/\=/,$curimport[$i]);
764: if ($url) {
765: $importdetail.='&'.$name.'='.$url;
766: }
767: }
768: $importdetail=~s/\&+/\&/g;
769: $importdetail=~s/^\&//;
770:
771: # ------------------------------------------------ Groupimport/search to target
772: } elsif ($ENV{'form.importdetail'}) {
773: my $lastsel;
774: if (defined($targetselect[-1])) {
775: $lastsel=$targetselect[-1];
776: } else {
777: $lastsel=$#order+1;
778: }
779: &pastetarget($lastsel,split(/\&/,$ENV{'form.importdetail'}));
780: &storemap(&Apache::lonnet::filelocation('',$url));
781: # ------------------------------------------------------------------------- Cut
782: } elsif (($ENV{'form.cut'}) || ($ENV{'form.copy'})) {
783: $importdetail='';
784: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
785:
786: my $lastsel;
787:
788: if (defined($importselect[-1])) {
789: $lastsel=$importselect[-1];
790: } else {
791: $lastsel=$#curimport;
792: }
793:
794: for (my $i=0;$i<=$lastsel;$i++) {
795: my ($name,$url)=split(/\=/,$curimport[$i]);
796: if ($url) {
797: $importdetail.='&'.$name.'='.$url;
798: }
799: }
800:
801: foreach (@targetselect) {
802: my ($name,$url)=split(/\:/,$resources[$order[$_-1]]);
803: if ($url) {
804: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
805: &Apache::lonnet::escape($url);
806: }
807: }
808:
809: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
810: my ($name,$url)=split(/\=/,$curimport[$i]);
811: if ($url) {
812: $importdetail.='&'.$name.'='.$url;
813: }
814: }
815: $importdetail=~s/\&+/\&/g;
816: $importdetail=~s/^\&//;
817:
818: if ($ENV{'form.cut'}) {
819: my @neworder=();
820: for (my $i=0;$i<=$#order;$i++) {
821: my $include=1;
822: foreach (@targetselect) {
823: if ($_-1==$i) { $include=0; }
824: }
825: if ($include) { $neworder[$#neworder+1]=$order[$i]; }
826: }
827: @order=@neworder;
828: &storemap(&Apache::lonnet::filelocation('',$url));
829: }
830:
831: # ----------------------------------------------------------------------- Paste
832: } elsif ($ENV{'form.paste'}) {
833: my $lastsel;
834: if (defined($targetselect[-1])) {
835: $lastsel=$targetselect[-1];
836: } else {
837: $lastsel=$#order+1;
838: }
839: my @newsequence;
840: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
841: foreach (@importselect) {
842: $newsequence[$#newsequence+1]=$curimport[$_];
843: }
844: &pastetarget($lastsel,@newsequence);
845: &storemap(&Apache::lonnet::filelocation('',$url));
846: # -------------------------------------------------------------------- Move up
847: } elsif ($ENV{'form.moveup'}) {
848: foreach (sort @targetselect) {
849: if ($_-1>0) {
850: my $movethis=$order[$_-1];
851: $order[$_-1]=$order[$_-2];
852: $order[$_-2]=$movethis;
853: }
854: }
855: &storemap(&Apache::lonnet::filelocation('',$url));
856: # ------------------------------------------------------------------ Move down
857: } elsif ($ENV{'form.movedown'}) {
858: foreach (reverse sort @targetselect) {
859: if ($_-1<$#order) {
860: my $movethis=$order[$_-1];
861: $order[$_-1]=$order[$_];
862: $order[$_]=$movethis;
863: }
864: }
865: &storemap(&Apache::lonnet::filelocation('',$url));
866: # --------------------------------------------------------------------- Rename
867: } elsif ($ENV{'form.renameres'}) {
868: my $residx=$Apache::lonratedt::order[$ENV{'form.renameidx'}-1];
869: my ($name,@resrest)=split(/\:/,$Apache::lonratedt::resources[$residx]);
870: $name=$ENV{'form.renametitle'};
871: $name=~s/\:/\&colon\;/g;
872: $Apache::lonratedt::resources[$residx]=$name.':'.join(':',@resrest);
873: &storemap(&Apache::lonnet::filelocation('',$url));
874: }
875: # ------------------------------------------------------------ Assemble windows
876:
877: my $idx=-1;
878: $importdetail='&'.$importdetail;
879: $importdetail=~s/^\&+/\&/;
880: my $importwindow=
881: '<option value="-1"> ---- '.&mt('Import and Paste Area').' ---- </option>'.
882: join("\n",map {
883: $idx++;
884: if ($_) {
885: my ($name,$url)=split(/\=/,$_);
886: unless ($name) { $name=(split(/\//,$url))[-1]; }
887: unless ($name) { $name='EMPTY'; }
888: '<option value="'.$idx.'">'.&Apache::lonnet::unescape($name).
889: '</option>';
890: }
891: } split(/\&/,$importdetail));
892:
893: $idx=0;
894: $targetdetail='';
895: my $targetwindow=
896: '<option value="0"> ------- '.&mt('Target Edit Map').' ------- </option>'.
897: join("\n",map {
898: my ($name,$url)=split(/\:/,$resources[$_]);
899: unless ($name) { $name=(split(/\//,$url))[-1]; }
900: unless ($name) { $name='EMPTY'; }
901: $targetdetail.='&'.&Apache::lonnet::escape($name).'='.
902: &Apache::lonnet::escape($url);
903: $idx++;
904: $name=~s/\:/\:/g;
905: '<option value="'.$idx.'">'.$name.'</option>';
906: } @order);
907:
908: # ----------------------------------------------------- Start simple RAT screen
909: my $editscript=&editscript('simple');
910: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
911: my %lt=&Apache::lonlocal::texthash(
912: 'sa' => 'Save',
913: 'nt' => 'New Title',
914: 'se' => 'Search',
915: 'im' => 'Import',
916: 'vi' => 'View',
917: 'lm' => 'Load Map',
918: 'ds' => 'Discard Selected',
919: 'ca' => 'Clear All',
920: 'ta' => 'Temporary Assembly Workspace',
921: 'rv' => 'Revert to Last Saved',
922: 'sa' => 'Save',
923: 'mu' => 'Move Up',
924: 'md' => 'Move Down',
925: 're' => 'Rename',
926: 'as' => 'after selected',
927: 'cs' => 'Cut selected',
928: 'ps' => 'Copy selected',
929: 'pas' => 'Paste after selected',
930: );
931: $r->print(<<ENDSMPHEAD);
932: <html>
933: <head>
934: <script>
935:
936: $editscript
937:
938: function openview(entry) {
939: var url=unescape((entry.split('='))[1]);
940: var parts=new Array;
941: parts=url.split(':');
942: url=parts.join(':');
943: if (url) { open(url,'cat'); }
944: }
945:
946: function viewtarget() {
947: openview((document.forms.simpleedit.targetdetail.value.split('&'))
948: [document.forms.simpleedit.target.selectedIndex]);
949: }
950:
951: function viewimport() {
952: openview((document.forms.simpleedit.curimpdetail.value.split('&'))
953: [document.forms.simpleedit.importsel.selectedIndex]);
954: }
955:
956: function renametarget() {
957: var selidx=document.forms.simpleedit.target.selectedIndex;
958: var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
959: [selidx];
960: var oldname=unescape((entry.split('='))[0]);
961: var nameparts=oldname.split(':');
962: oldname=unescape(nameparts.join(':'));
963: nameparts=oldname.split('"');
964: oldname=unescape(nameparts.join('"'));
965: nameparts=oldname.split(''');
966: oldname=unescape(nameparts.join("'"));
967: newtitle=prompt('$lt{'nt'}',oldname);
968: if (newtitle) {
969: document.forms.simpleedit.renameres.value=1;
970: document.forms.simpleedit.renameidx.value=selidx;
971: document.forms.simpleedit.renametitle.value=newtitle;
972: document.forms.simpleedit.submit();
973: }
974: }
975:
976: </script>
977: </head>
978: $bodytag
979: $buttons
980: <font color=red>$errtext</font>
981: <form name=simpleedit method=post>
982: <input type=hidden name=forcesmp value=1>
983: <input type=hidden name=renameres value=0>
984: <input type=hidden name=renametitle value=''>
985: <input type=hidden name=renameidx value=0>
986: <table>
987: <tr><th width="40%">$lt{'ta'}</th>
988: <th> </th>
989: <th width="40%">File: $url</th></tr>
990: <tr><td bgcolor="#FFFFCC">
991: <input type=button onClick="javascript:groupsearch()" value="$lt{'se'}">
992: <input type=button onClick="javascript:groupimport();" value="$lt{'im'}">
993: $lt{'as'}
994: <hr>
995: <input type=text size=20 name=importmap>
996: <input type=button
997: onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
998: value="Select Map"><input type=submit name=loadmap value="$lt{'lm'}"><hr>
999: <input type=submit name="discard" value="$lt{'ds'}">
1000: <input type=submit name="clear" value="$lt{'ca'}">
1001: <input type=button onClick="javascript:viewimport()" value="$lt{'vi'}">
1002:
1003: </td><td> </td><td bgcolor="#FFFFCC">
1004:
1005: <input type=button onClick=
1006: "javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}">
1007: <input type=button onClick=
1008: "javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}">
1009: $lt{'as'}
1010: <hr>
1011: <input type=submit name="moveup" value="$lt{'mu'}">
1012: <input type=submit name="movedown" value="$lt{'md'}">
1013: <input type=button onClick="javascript:renametarget()" value="$lt{'re'}">
1014: <hr>$targetmsg
1015: <input type=submit name="revert" value="$lt{'rv'}">
1016: <input type=submit name="save" value="$lt{'sa'}">
1017: <input type=button onClick="javascript:viewtarget()" value="$lt{'vi'}">
1018: </td></tr>
1019:
1020: <tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
1021: $importwindow
1022: </select>
1023: </td>
1024: <td bgcolor="#FFFFAA" align="center">
1025: $lt{'cs'}<br>
1026: <input type=submit name=cut value='<<<'><p>
1027: <hr>
1028: $lt{'ps'}<br>
1029: <input type=submit name=copy value='<--'><p>
1030: <hr>
1031: $lt{'pas'}<br>
1032: <input type=submit name=paste value='-->'>
1033: </td>
1034: <td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
1035: $targetwindow
1036: </select>
1037: </table>
1038: <input type=hidden name=importdetail value="">
1039: <input type=hidden name=curimpdetail value="$importdetail">
1040: <input type=hidden name=targetdetail value="$targetdetail">
1041: <input type=hidden name=impfortarget value="0">
1042: </form>
1043: </body></html>
1044: ENDSMPHEAD
1045: }
1046:
1047: # ----------------------------------------------------------------- No such dir
1048: sub nodir {
1049: my ($r,$dir)=@_;
1050: $dir=~s/^\/home\/\w+\/public\_html//;
1051: $r->print(<<ENDNODIR);
1052: <html>
1053: <body bgcolor='#FFFFFF'>
1054: <h1>No such directory: $dir</h1>
1055: </body>
1056: </html>
1057: ENDNODIR
1058: }
1059:
1060: # ---------------------------------------------------------------- View Handler
1061:
1062: sub viewmap {
1063: my ($r,$url,$adv,$errtext)=@_;
1064: $r->print('<html>'.
1065: &Apache::loncommon::bodytag('Edit Content of a Map').
1066: &buttons($adv));
1067: if ($errtext) {
1068: $r->print($errtext.'<hr>');
1069: }
1070: my $idx=0;
1071: $r->print('<h1>'.$url.'</h1>');
1072: if ($adv) {
1073: $r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />');
1074: }
1075: foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) {
1076: if (defined($_)) {
1077: $idx++;
1078: my ($title,$url)=split(/\:/,$_);
1079: $title=~s/\&colon\;/\:/g;
1080: $url=~s/\&colon\;/\:/g;
1081: unless ($title) { $title=(split(/\//,$url))[-1] };
1082: unless ($title) { $title='<i>Empty</i>'; }
1083: if ($url) {
1084: $r->print('<a href="'.&Apache::lonratsrv::qtescape($url).'">');
1085: }
1086: $r->print(&Apache::lonratsrv::qtescape($title));
1087: if ($url) { $r->print('</a>'); }
1088: $r->print('<br>');
1089: }
1090: }
1091: $r->print('</body></html>');
1092: }
1093:
1094: # ================================================================ Main Handler
1095:
1096: sub handler {
1097: my $r=shift;
1098: &Apache::loncommon::content_type($r,'text/html');
1099: $r->send_http_header;
1100:
1101: return OK if $r->header_only;
1102: my $target = $ENV{'form.grade_target'};
1103: if ($target eq 'meta') {
1104: &Apache::loncommon::content_type($r,'text/html');
1105: $r->send_http_header;
1106: return OK;
1107: }
1108:
1109: my $url=$r->uri;
1110: my $fn=&Apache::lonnet::filelocation('',$url);
1111:
1112: my ($dir)=($fn=~/^(.+)\/[^\/]+$/);
1113: unless (-e $dir) {
1114: &nodir($r,$dir);
1115: return OK;
1116: }
1117:
1118: # ------------------------------------------- Determine which tools can be used
1119: my $adv=0;
1120:
1121: unless ($ENV{'form.forcesmp'}) {
1122: if ($ENV{'form.forceadv'}) {
1123: $adv=1;
1124: } elsif (my $fh=Apache::File->new($fn)) {
1125: my $allmap=join('',<$fh>);
1126: $adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is);
1127: }
1128: }
1129:
1130: my $errtext='';
1131: my $fatal=0;
1132:
1133: # -------------------------------------------------------------------- Load map
1134: ($errtext,$fatal)=&mapread($fn,$errtext);
1135:
1136: if ($fatal==1) { $adv=1; }
1137:
1138: # ----------------------------------- adv==1 now means "graphical MUST be used"
1139:
1140: if ($ENV{'form.forceadv'}) {
1141: &ratedt($r,$url);
1142: } elsif ($ENV{'form.forcesmp'}) {
1143: &smpedt($r,$url,$errtext);
1144: } else {
1145: &viewmap($r,$url,$adv,$errtext);
1146: }
1147: return OK;
1148: }
1149:
1150: 1;
1151: __END__
1152:
1153:
1154:
1155:
1156:
1157:
1158:
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