1: # The LearningOnline Network with CAPA
2: # Edit Handler for RAT Maps
3: #
4: # $Id: lonratedt.pm,v 1.42 2002/12/06 12:58:11 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: # (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: use strict;
36: use Apache::Constants qw(:common);
37: use Apache::lonnet;
38: use Apache::lonratsrv;
39: use Apache::lonsequence;
40: use Apache::loncommon;
41: use File::Copy;
42:
43: use vars qw(@order @resources);
44:
45:
46: # Mapread read maps into global arrays @links and @resources, determines status
47: # sets @order - pointer to resources in right order
48: # sets @resources - array with the resources with correct idx
49: #
50: sub mapread {
51: my $fn=shift;
52:
53: my @links;
54: undef @links;
55: undef @resources;
56: undef @order;
57: @resources=('');
58: @order=();
59:
60: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
61: if ($errtext) { return ($errtext,2); }
62:
63: # -------------------------------------------------------------------- Read map
64: foreach (split(/\<\&\>/,$outtext)) {
65: my ($command,$number,$content)=split(/\<\:\>/,$_);
66: if ($command eq 'objcont') {
67: $resources[$number]=$content;
68: }
69: if ($command eq 'objlinks') {
70: $links[$number]=$content;
71: }
72: if ($command eq 'objparms') {
73: return('Map has resource parameters. Use advanced editor.',1);
74: }
75: }
76: # ------------------------------------------------------- Is this a linear map?
77: my @starters=();
78: my @endings=();
79: undef @starters;
80: undef @endings;
81:
82: foreach (@links) {
83: if (defined($_)) {
84: my ($start,$end,$cond)=split(/\:/,$_);
85: if ((defined($starters[$start])) || (defined($endings[$end]))) {
86: return
87: ('Map has branchings. Use advanced editor.',1);
88: }
89: $starters[$start]=1;
90: $endings[$end]=1;
91: if ($cond) {
92: return
93: ('Map has conditions. Use advanced editor.',1);
94: }
95: }
96:
97: }
98: for (my $i=1; $i<=$#resources; $i++) {
99: if (defined($resources[$i])) {
100: unless (($starters[$i]) || ($endings[$i])) {
101: return
102: ('Map has unconnected resources. Use advanced editor.',1);
103: }
104: }
105: }
106: # ---------------------------------------------- Did we just read an empty map?
107: if ($#resources<1) {
108: undef $resources[0];
109: $resources[1]=':::start';
110: $resources[2]=':::finish';
111: }
112: # -------------------------------------------------- This is a linear map, sort
113:
114: my $startidx=0;
115: my $endidx=0;
116: for (my $i=0; $i<=$#resources; $i++) {
117: if (defined($resources[$i])) {
118: my ($title,$url,$ext,$type)=split(/\:/,$resources[$i]);
119: if ($type eq 'start') { $startidx=$i; }
120: if ($type eq 'finish') { $endidx=$i; }
121: }
122: }
123: my $k=0;
124: my $currentidx=$startidx;
125: $order[$k]=$currentidx;
126: for (my $i=0; $i<=$#resources; $i++) {
127: foreach (@links) {
128: my ($start,$end)=split(/\:/,$_);
129: if ($start==$currentidx) {
130: $currentidx=$end;
131: $k++;
132: $order[$k]=$currentidx;
133: last;
134: }
135: }
136: if ($currentidx==$endidx) { last; }
137: }
138: return $errtext;
139: }
140:
141: # ---------------------------------------------- Read a map as well as possible
142: # Also used by the sequence handler
143: # Call lonsequence::attemptread to read from resource space
144: #
145: sub attemptread {
146: my $fn=shift;
147:
148: my @links;
149: undef @links;
150: my @theseres;
151: undef @theseres;
152:
153: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
154: if ($errtext) { return @theseres }
155:
156: # -------------------------------------------------------------------- Read map
157: foreach (split(/\<\&\>/,$outtext)) {
158: my ($command,$number,$content)=split(/\<\:\>/,$_);
159: if ($command eq 'objcont') {
160: $theseres[$number]=$content;
161: }
162: if ($command eq 'objlinks') {
163: $links[$number]=$content;
164: }
165: }
166:
167: # --------------------------------------------------------------- Sort, sort of
168:
169: my @objsort=();
170: undef @objsort;
171:
172: my @data1=();
173: my @data2=();
174: undef @data1;
175: undef @data2;
176:
177: my $k;
178: my $kj;
179: my $j;
180: my $ij;
181:
182: for ($k=1;$k<=$#theseres;$k++) {
183: if (defined($theseres[$k])) {
184: $objsort[$#objsort+1]=$k;
185: }
186: }
187:
188: for ($k=1;$k<=$#links;$k++) {
189: if (defined($links[$k])) {
190: @data1=split(/\:/,$links[$k]);
191: $kj=-1;
192: for (my $j=0;$j<=$#objsort;$j++) {
193: if ((split(/\:/,$objsort[$j]))[0]==$data1[0]) {
194: $kj=$j;
195: }
196: }
197: if ($kj!=-1) { $objsort[$kj].=':'.$data1[1]; }
198: }
199: }
200: for ($k=0;$k<=$#objsort;$k++) {
201: for ($j=0;$j<=$#objsort;$j++) {
202: if ($k!=$j) {
203: @data1=split(/\:/,$objsort[$k]);
204: @data2=split(/\:/,$objsort[$j]);
205: my $dol=$#data1+1;
206: my $dtl=$#data2+1;
207: if ($dol+$dtl<1000) {
208: for ($kj=1;$kj<$dol;$kj++) {
209: if ($data1[$kj]==$data2[0]) {
210: for ($ij=1;$ij<$dtl;$ij++) {
211: $data1[$#data1+1]=$data2[$ij];
212: }
213: }
214: }
215: for ($kj=1;$kj<$dtl;$kj++) {
216: if ($data2[$kj]==$data1[0]) {
217: for ($ij=1;$ij<$dol;$ij++) {
218: $data2[$#data2+1]=$data1[$ij];
219: }
220: }
221: }
222: $objsort[$k]=join(':',@data1);
223: $objsort[$j]=join(':',@data2);
224: }
225: }
226: }
227: }
228: # ---------------------------------------------------------------- Now sort out
229:
230: @objsort=sort {
231: my @data1=split(/\:/,$a);
232: my @data2=split(/\:/,$b);
233: my $rvalue=0;
234: my $k;
235: for ($k=1;$k<=$#data1;$k++) {
236: if ($data1[$k]==$data2[0]) { $rvalue--; }
237: }
238: for ($k=1;$k<=$#data2;$k++) {
239: if ($data2[$k]==$data1[0]) { $rvalue++; }
240: }
241: if ($rvalue==0) { $rvalue=$#data2-$#data1; }
242: $rvalue;
243: } @objsort;
244:
245: my @outres=();
246: undef @outres;
247:
248: for ($k=0;$k<=$#objsort;$k++) {
249: $outres[$k]=$theseres[(split(/\:/,$objsort[$k]))[0]];
250: }
251: return @outres;
252: }
253:
254: # --------------------------------------------------------- Build up RAT screen
255: sub ratedt {
256: my ($r,$url)=@_;
257: $r->print(<<ENDDOCUMENT);
258:
259: <html>
260: <head>
261: <script language="JavaScript">
262: var flag=0;
263: </script>
264: </head>
265: <frameset rows="1,50,*" border=0>
266: <frame name=server src="$url/loadonly/ratserver" noresize noscroll>
267: <frame name=code src="/adm/rat/code.html">
268: <frame name=mapout src="/adm/rat/map.html">
269: </frameset>
270: </html>
271:
272: ENDDOCUMENT
273: }
274:
275: # ---------------------------------------------------------------- Make buttons
276:
277: sub buttons {
278: my $adv=shift;
279: my $output='<form method=post>';
280: if ($adv==1) {
281: $output.='<input type=submit name=forceadv value="Edit">';
282: } else {
283: unless ($adv==2) {
284: $output.='<input type=submit name=forcesmp value="Simple Edit">';
285: }
286: $output.='<input type=submit name=forceadv value="Advanced Edit">';
287: }
288: return $output.'</form><hr>';
289: }
290:
291: # ----------------------------------------------------------- Paste into target
292: # modifies @order, @resources
293:
294: sub pastetarget {
295: my ($after,@which)=@_;
296: my @insertorder=();
297: foreach (@which) {
298: if (defined($_)) {
299: my ($name,$url)=split(/\=/,$_);
300: $name=&Apache::lonnet::unescape($name);
301: $url=&Apache::lonnet::unescape($url);
302: if ($url) {
303: my $idx=$#resources+1;
304: $insertorder[$#insertorder+1]=$idx;
305: my $ext='false';
306: if ($url=~/^http\:\/\//) { $ext='true'; }
307: $url=~s/\:/\:/g;
308: $name=~s/\:/\:/g;
309: $resources[$idx]=$name.':'.$url.':'.$ext.':normal:res';
310: }
311: }
312: }
313: my @oldorder=splice(@order,$after);
314: @order=(@order,@insertorder,@oldorder);
315: }
316:
317: # ------------------------------------------------ Get start and finish correct
318: # modifies @resources
319:
320: sub startfinish {
321: foreach (@order) {
322: my ($name,$url,$ext)=split(/\:/,$resources[$_]);
323: if ($url=~/http\&colon\:\/\//) { $ext='true'; }
324: $resources[$_]=$name.':'.$url.':'.$ext.':normal:res';
325: }
326: my ($name,$url,$ext)=split(/\:/,$resources[$order[0]]);
327: $resources[$order[0]]=$name.':'.$url.':'.$ext.':start:res';
328: if ($#order==0) {
329: $resources[$#resources+1]='::false';
330: $order[1]=$#resources;
331: }
332: ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]);
333: $resources[$order[$#order]]=$name.':'.$url.':'.$ext.':finish:res';
334: }
335:
336: # ------------------------------------------------------------------- Store map
337:
338: sub storemap {
339: my $realfn=shift;
340: my $fn=$realfn;
341: # unless this is forced to work from the original file, use a temporary file
342: # instead
343: unless (shift) {
344: $fn=$realfn.'.tmp';
345: unless (-e $fn) {
346: copy($realfn,$fn);
347: }
348: }
349: # store data either into tmp or real file
350: &startfinish();
351: my $output='graphdef<:>no';
352: my $k=1;
353: for (my $i=0; $i<=$#order; $i++) {
354: if (defined($resources[$order[$i]])) {
355: $output.='<&>objcont<:>'.$order[$i].'<:>'.$resources[$order[$i]];
356: }
357: if (defined($order[$i+1])) {
358: if (defined($resources[$order[$i+1]])) {
359: $output.='<&>objlinks<:>'.$k.'<:>'.
360: $order[$i].':'.$order[$i+1].':0';
361: $k++;
362: }
363: }
364: }
365: $output=~s/http\&colon\;\/\///g;
366: $ENV{'form.output'}=$output;
367: return
368: &Apache::lonratsrv::loadmap($fn,&Apache::lonratsrv::savemap($fn,''));
369: }
370:
371: sub editscript {
372: my $mode=shift;
373: return(<<ENDSCRIPT);
374: var srch;
375: var srchflag=-1; // 1 means currently open
376: // 0 means closed (but has been open)
377: // -1 means never yet opened/defined
378: var srchmode='';
379:
380: var idx;
381: var idxflag=-1; // 1 means currently open
382: // 0 means closed (but has been open)
383: // -1 means never yet opened/defined
384: var idxmode='';
385:
386: // ------------------------------------------------------ Clears indexer window
387: function idxclear() {
388: idx.document.clear();
389: }
390:
391: // ------------------------------------------------------- Clears search window
392: function srchclear() {
393: srch.document.clear();
394: }
395:
396: // ------------------------------------------------------ Closes indexer window
397: function idxclose() {
398: if (idx && !idx.closed) {
399: idxflag=0;
400: idx.close();
401: }
402: }
403:
404: // ------------------------------------------------------- Closes search window
405: function srchclose() {
406: if (srch && !srch.closed) {
407: srchflag=0;
408: srch.close();
409: }
410: }
411:
412: // -------------------------------------------------------- Open indexer window
413: function idxopen(mode) {
414: var options="scrollbars=1,resizable=1,menubar=0";
415: idxmode=mode;
416: idxflag=1;
417: idx=open("/res/?launch=1&mode=$mode&catalogmode="+mode,"idxout",options);
418: idx.focus();
419: }
420:
421: // --------------------------------------------------------- Open search window
422: function srchopen(mode) {
423: var options="scrollbars=1,resizable=1,menubar=0";
424: srchmode=mode;
425: srchflag=1;
426: srch=open("/adm/searchcat?launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
427: srch.focus();
428: }
429: // ----------------------------------------------------- launch indexer browser
430: function groupsearch() {
431: srchcheck('groupsearch');
432: }
433:
434: function groupimport() {
435: idxcheck('groupimport');
436: }
437: // ------------------------------------------------------- Do srch status check
438: function srchcheck(mode) {
439: if (!srch || srch.closed || srchmode!=mode) {
440: srchopen(mode);
441: }
442: srch.focus();
443: }
444:
445: // -------------------------------------------------------- Do idx status check
446: function idxcheck(mode) {
447: if (!idx || idx.closed || idxmode!=mode) {
448: idxopen(mode);
449: }
450: idx.focus();
451: }
452:
453:
454: var editbrowser;
455: function openbrowser(formname,elementname,only,omit) {
456: var url = '/res/?';
457: if (editbrowser == null) {
458: url += 'launch=1&';
459: }
460: url += 'catalogmode=interactive&';
461: url += 'mode=edit&';
462: url += 'form=' + formname + '&';
463: if (only != null) {
464: url += 'only=' + only + '&';
465: }
466: if (omit != null) {
467: url += 'omit=' + omit + '&';
468: }
469: url += 'element=' + elementname + '';
470: var title = 'Browser';
471: var options = 'scrollbars=1,resizable=1,menubar=0';
472: options += ',width=700,height=600';
473: editbrowser = open(url,title,options,'1');
474: editbrowser.focus();
475: }
476: ENDSCRIPT
477: }
478: # ------------------------------------------------------- Simple edit processor
479:
480: sub smpedt {
481: my ($r,$url,$errtext)=@_;
482: my $buttons=&buttons(2);
483: my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
484: my $targetmsg='';
485: if ($ENV{'form.save'}) {
486: $targetmsg='<b>Saving ...</b><br>';
487: copy($tmpfn,&Apache::lonnet::filelocation('',$url));
488: unlink($tmpfn);
489: my ($errtext,$fatal)=
490: &mapread(&Apache::lonnet::filelocation('',$url),'');
491: }
492: if ($ENV{'form.revert'}) {
493: $targetmsg='<b>Reverting ...</b><br>';
494: unlink($tmpfn);
495: my ($errtext,$fatal)=
496: &mapread(&Apache::lonnet::filelocation('',$url),'');
497: }
498: if (-e $tmpfn) {
499: $targetmsg=
500: '<b><font color="red">You are working with an unsaved version of your map.</font></b><br>';
501: my ($errtext,$fatal)=&mapread($tmpfn,'');
502: }
503: # ---------------------------------------------------------- Process form input
504:
505: my @importselect=();
506: my @targetselect=();
507: undef @importselect;
508: undef @targetselect;
509: if (defined($ENV{'form.importsel'})) {
510: if (ref($ENV{'form.importsel'})) {
511: @importselect=sort(@{$ENV{'form.importsel'}});
512: } else {
513: @importselect=($ENV{'form.importsel'});
514: }
515: }
516: if (defined($ENV{'form.target'})) {
517: if (ref($ENV{'form.target'})) {
518: @targetselect=sort(@{$ENV{'form.target'}});
519: } else {
520: @targetselect=($ENV{'form.target'});
521: }
522: }
523: # ============================================================ Process commands
524:
525: my $targetdetail=$ENV{'form.targetdetail'};
526: my $importdetail=$ENV{'form.curimpdetail'};
527:
528: # ---------------------------------------------------- Importing from groupsort
529: if (($ENV{'form.importdetail'}) && (!$ENV{'form.impfortarget'})) {
530:
531: $importdetail='';
532: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
533:
534: my $lastsel;
535:
536: if (defined($importselect[-1])) {
537: $lastsel=$importselect[-1];
538: } else {
539: $lastsel=$#curimport;
540: }
541:
542: for (my $i=0;$i<=$lastsel;$i++) {
543: my ($name,$url)=split(/\=/,$curimport[$i]);
544: if ($url) {
545: $importdetail.='&'.$name.'='.$url;
546: }
547: }
548:
549: $importdetail.='&'.$ENV{'form.importdetail'};
550:
551: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
552: my ($name,$url)=split(/\=/,$curimport[$i]);
553: if ($url) {
554: $importdetail.='&'.$name.'='.$url;
555: }
556: }
557: $importdetail=~s/\&+/\&/g;
558: $importdetail=~s/^\&//;
559:
560: # ------------------------------------------------------------------- Clear all
561: } elsif ($ENV{'form.clear'}) {
562: $importdetail='';
563: # ------------------------------------------------------------ Discard selected
564: } elsif ($ENV{'form.discard'}) {
565: $importdetail='';
566: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
567: foreach (@importselect) {
568: $curimport[$_]='';
569: }
570: for (my $i=0;$i<=$#curimport;$i++) {
571: my ($name,$url)=split(/\=/,$curimport[$i]);
572: if ($url) {
573: $importdetail.='&'.$name.'='.$url;
574: }
575: }
576: # --------------------------------------------------------- Loading another map
577: } elsif ($ENV{'form.loadmap'}) {
578: $importdetail='';
579: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
580:
581: my $lastsel;
582:
583: if (defined($importselect[-1])) {
584: $lastsel=$importselect[-1];
585: } else {
586: $lastsel=$#curimport;
587: }
588:
589: for (my $i=0;$i<=$lastsel;$i++) {
590: my ($name,$url)=split(/\=/,$curimport[$i]);
591: if ($url) {
592: $importdetail.='&'.$name.'='.$url;
593: }
594: }
595:
596: foreach (
597: &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$ENV{'form.importmap'}))) {
598: my ($name,$url)=split(/\:/,$_);
599: if ($url) {
600: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
601: &Apache::lonnet::escape($url);
602: }
603: }
604:
605: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
606: my ($name,$url)=split(/\=/,$curimport[$i]);
607: if ($url) {
608: $importdetail.='&'.$name.'='.$url;
609: }
610: }
611: $importdetail=~s/\&+/\&/g;
612: $importdetail=~s/^\&//;
613:
614: # ------------------------------------------------ Groupimport/search to target
615: } elsif ($ENV{'form.importdetail'}) {
616: my $lastsel;
617: if (defined($targetselect[-1])) {
618: $lastsel=$targetselect[-1];
619: } else {
620: $lastsel=$#order+1;
621: }
622: &pastetarget($lastsel,split(/\&/,$ENV{'form.importdetail'}));
623: &storemap(&Apache::lonnet::filelocation('',$url));
624: # ------------------------------------------------------------------------- Cut
625: } elsif (($ENV{'form.cut'}) || ($ENV{'form.copy'})) {
626: $importdetail='';
627: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
628:
629: my $lastsel;
630:
631: if (defined($importselect[-1])) {
632: $lastsel=$importselect[-1];
633: } else {
634: $lastsel=$#curimport;
635: }
636:
637: for (my $i=0;$i<=$lastsel;$i++) {
638: my ($name,$url)=split(/\=/,$curimport[$i]);
639: if ($url) {
640: $importdetail.='&'.$name.'='.$url;
641: }
642: }
643:
644: foreach (@targetselect) {
645: my ($name,$url)=split(/\:/,$resources[$order[$_-1]]);
646: if ($url) {
647: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
648: &Apache::lonnet::escape($url);
649: }
650: }
651:
652: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
653: my ($name,$url)=split(/\=/,$curimport[$i]);
654: if ($url) {
655: $importdetail.='&'.$name.'='.$url;
656: }
657: }
658: $importdetail=~s/\&+/\&/g;
659: $importdetail=~s/^\&//;
660:
661: if ($ENV{'form.cut'}) {
662: my @neworder=();
663: for (my $i=0;$i<=$#order;$i++) {
664: my $include=1;
665: foreach (@targetselect) {
666: if ($_-1==$i) { $include=0; }
667: }
668: if ($include) { $neworder[$#neworder+1]=$order[$i]; }
669: }
670: @order=@neworder;
671: &storemap(&Apache::lonnet::filelocation('',$url));
672: }
673:
674: # ----------------------------------------------------------------------- Paste
675: } elsif ($ENV{'form.paste'}) {
676: my $lastsel;
677: if (defined($targetselect[-1])) {
678: $lastsel=$targetselect[-1];
679: } else {
680: $lastsel=$#order+1;
681: }
682: my @newsequence;
683: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
684: foreach (@importselect) {
685: $newsequence[$#newsequence+1]=$curimport[$_];
686: }
687: &pastetarget($lastsel,@newsequence);
688: &storemap(&Apache::lonnet::filelocation('',$url));
689: # -------------------------------------------------------------------- Move up
690: } elsif ($ENV{'form.moveup'}) {
691: foreach (sort @targetselect) {
692: if ($_-1>0) {
693: my $movethis=$order[$_-1];
694: $order[$_-1]=$order[$_-2];
695: $order[$_-2]=$movethis;
696: }
697: }
698: &storemap(&Apache::lonnet::filelocation('',$url));
699: # ------------------------------------------------------------------ Move down
700: } elsif ($ENV{'form.movedown'}) {
701: foreach (reverse sort @targetselect) {
702: if ($_-1<$#order) {
703: my $movethis=$order[$_-1];
704: $order[$_-1]=$order[$_];
705: $order[$_]=$movethis;
706: }
707: }
708: &storemap(&Apache::lonnet::filelocation('',$url));
709: # --------------------------------------------------------------------- Rename
710: } elsif ($ENV{'form.renameres'}) {
711: my $residx=$Apache::lonratedt::order[$ENV{'form.renameidx'}-1];
712: my ($name,@resrest)=split(/\:/,$Apache::lonratedt::resources[$residx]);
713: $name=$ENV{'form.renametitle'};
714: $name=~s/\:/\&colon\;/g;
715: $Apache::lonratedt::resources[$residx]=$name.':'.join(':',@resrest);
716: &storemap(&Apache::lonnet::filelocation('',$url));
717: }
718: # ------------------------------------------------------------ Assemble windows
719:
720: my $idx=-1;
721: $importdetail='&'.$importdetail;
722: $importdetail=~s/^\&+/\&/;
723: my $importwindow=
724: '<option value="-1"> ---- Import and Paste Area ---- </option>'.
725: join("\n",map {
726: $idx++;
727: if ($_) {
728: my ($name,$url)=split(/\=/,$_);
729: unless ($name) { $name=(split(/\//,$url))[-1]; }
730: unless ($name) { $name='EMPTY'; }
731: '<option value="'.$idx.'">'.&Apache::lonnet::unescape($name).
732: '</option>';
733: }
734: } split(/\&/,$importdetail));
735:
736: $idx=0;
737: $targetdetail='';
738: my $targetwindow=
739: '<option value="0"> ------- Target Edit Map ------- </option>'.
740: join("\n",map {
741: my ($name,$url)=split(/\:/,$resources[$_]);
742: unless ($name) { $name=(split(/\//,$url))[-1]; }
743: unless ($name) { $name='EMPTY'; }
744: $targetdetail.='&'.&Apache::lonnet::escape($name).'='.
745: &Apache::lonnet::escape($url);
746: $idx++;
747: $name=~s/\:/\:/g;
748: '<option value="'.$idx.'">'.$name.'</option>';
749: } @order);
750:
751: # ----------------------------------------------------- Start simple RAT screen
752: my $editscript=&editscript('simple');
753: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
754: $r->print(<<ENDSMPHEAD);
755: <html>
756: <head>
757: <script>
758:
759: $editscript
760:
761: function openview(entry) {
762: var url=unescape((entry.split('='))[1]);
763: var parts=new Array;
764: parts=url.split(':');
765: url=parts.join(':');
766: if (url) { open(url,'cat'); }
767: }
768:
769: function viewtarget() {
770: openview((document.forms.simpleedit.targetdetail.value.split('&'))
771: [document.forms.simpleedit.target.selectedIndex]);
772: }
773:
774: function viewimport() {
775: openview((document.forms.simpleedit.curimpdetail.value.split('&'))
776: [document.forms.simpleedit.importsel.selectedIndex]);
777: }
778:
779: function renametarget() {
780: var selidx=document.forms.simpleedit.target.selectedIndex;
781: var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
782: [selidx];
783: var oldname=unescape((entry.split('='))[0]);
784: var nameparts=oldname.split(':');
785: oldname=unescape(nameparts.join(':'));
786: nameparts=oldname.split('"');
787: oldname=unescape(nameparts.join('"'));
788: nameparts=oldname.split(''');
789: oldname=unescape(nameparts.join("'"));
790: newtitle=prompt('New Title',oldname);
791: if (newtitle) {
792: document.forms.simpleedit.renameres.value=1;
793: document.forms.simpleedit.renameidx.value=selidx;
794: document.forms.simpleedit.renametitle.value=newtitle;
795: document.forms.simpleedit.submit();
796: }
797: }
798:
799: </script>
800: </head>
801: $bodytag
802: $buttons
803: <font color=red>$errtext</font>
804: <form name=simpleedit method=post>
805: <input type=hidden name=forcesmp value=1>
806: <input type=hidden name=renameres value=0>
807: <input type=hidden name=renametitle value=''>
808: <input type=hidden name=renameidx value=0>
809: <table>
810: <tr><th width="40%">Temporary Assembly Workspace</th>
811: <th> </th>
812: <th width="40%">File: $url</th></tr>
813: <tr><td bgcolor="#FFFFCC">
814: <input type=button onClick="javascript:groupsearch()" value="Search">
815: <input type=button onClick="javascript:groupimport();" value="Import">
816: after selected
817: <hr>
818: <input type=text size=20 name=importmap>
819: <input type=button
820: onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
821: value="Browse"><input type=submit name=loadmap value="Load Map"><hr>
822: <input type=submit name="discard" value="Discard Selected">
823: <input type=submit name="clear" value="Clear All">
824: <input type=button onClick="javascript:viewimport()" value="View">
825:
826: </td><td> </td><td bgcolor="#FFFFCC">
827:
828: <input type=button onClick=
829: "javascript:impfortarget.value=1;groupsearch()" value="Search">
830: <input type=button onClick=
831: "javascript:impfortarget.value=1;groupimport();" value="Import">
832: after selected
833: <hr>
834: <input type=submit name="moveup" value="Move Up">
835: <input type=submit name="movedown" value="Move Down">
836: <input type=button onClick="javascript:renametarget()" value="Rename">
837: <hr>$targetmsg
838: <input type=submit name="revert" value="Revert to Last Saved">
839: <input type=submit name="save" value="Save">
840: <input type=button onClick="javascript:viewtarget()" value="View">
841: </td></tr>
842:
843: <tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
844: $importwindow
845: </select>
846: </td>
847: <td bgcolor="#FFFFAA" align="center">
848: Cut selected<br>
849: <input type=submit name=cut value='<<<'><p>
850: <hr>
851: Copy selected<br>
852: <input type=submit name=copy value='<--'><p>
853: <hr>
854: Paste after selected<br>
855: <input type=submit name=paste value='-->'>
856: </td>
857: <td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
858: $targetwindow
859: </select>
860: </table>
861: <input type=hidden name=importdetail value="">
862: <input type=hidden name=curimpdetail value="$importdetail">
863: <input type=hidden name=targetdetail value="$targetdetail">
864: <input type=hidden name=impfortarget value="0">
865: </form>
866: </body></html>
867: ENDSMPHEAD
868: }
869:
870: # ----------------------------------------------------------------- No such dir
871: sub nodir {
872: my ($r,$dir)=@_;
873: $dir=~s/^\/home\/\w+\/public\_html//;
874: $r->print(<<ENDNODIR);
875: <html>
876: <body bgcolor='#FFFFFF'>
877: <h1>No such directory: $dir</h1>
878: </body>
879: </html>
880: ENDNODIR
881: }
882:
883: # ---------------------------------------------------------------- View Handler
884:
885: sub viewmap {
886: my ($r,$url,$adv,$errtext)=@_;
887: $r->print('<html>'.
888: &Apache::loncommon::bodytag('Edit Content of a Map').
889: &buttons($adv));
890: if ($errtext) {
891: $r->print($errtext.'<hr>');
892: }
893: my $idx=0;
894: $r->print('<h1>'.$url.'</h1>');
895: foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) {
896: if (defined($_)) {
897: $idx++;
898: my ($title,$url)=split(/\:/,$_);
899: $title=~s/\&colon\;/\:/g;
900: $url=~s/\&colon\;/\:/g;
901: unless ($title) { $title=(split(/\//,$url))[-1] };
902: unless ($title) { $title='<i>Empty</i>'; }
903: if ($url) {
904: $r->print('<a href="'.&Apache::lonratsrv::qtescape($url).'">');
905: }
906: $r->print(&Apache::lonratsrv::qtescape($title));
907: if ($url) { $r->print('</a>'); }
908: $r->print('<br>');
909: }
910: }
911: $r->print('</body></html>');
912: }
913:
914: # ================================================================ Main Handler
915:
916: sub handler {
917: my $r=shift;
918: $r->content_type('text/html');
919: $r->send_http_header;
920:
921: return OK if $r->header_only;
922:
923: my $url=$r->uri;
924: my $fn=&Apache::lonnet::filelocation('',$url);
925:
926: my ($dir)=($fn=~/^(.+)\/[^\/]+$/);
927: unless (-e $dir) {
928: &nodir($r,$dir);
929: return OK;
930: }
931:
932: # ------------------------------------------- Determine which tools can be used
933: my $adv=0;
934:
935: unless ($ENV{'form.forcesmp'}) {
936: if ($ENV{'form.forceadv'}) {
937: $adv=1;
938: } elsif (my $fh=Apache::File->new($fn)) {
939: my $allmap=join('',<$fh>);
940: $adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is);
941: }
942: }
943:
944: my $errtext='';
945: my $fatal=0;
946:
947: # -------------------------------------------------------------------- Load map
948: ($errtext,$fatal)=&mapread($fn,$errtext);
949:
950: if ($fatal==1) { $adv=1; }
951:
952: # ----------------------------------- adv==1 now means "graphical MUST be used"
953:
954: if ($ENV{'form.forceadv'}) {
955: &ratedt($r,$url);
956: } elsif ($ENV{'form.forcesmp'}) {
957: &smpedt($r,$url,$errtext);
958: } else {
959: &viewmap($r,$url,$adv,$errtext);
960: }
961: return OK;
962: }
963:
964: 1;
965: __END__
966:
967:
968:
969:
970:
971:
972:
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