1: # The LearningOnline Network with CAPA
2: # Edit Handler for RAT Maps
3: #
4: # $Id: lonratedt.pm,v 1.60 2004/09/02 13:21:53 www Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29:
30: package Apache::lonratedt;
31:
32: =pod
33:
34: =head1 NAME
35:
36: Apache::lonratedt: advanced resource assembly tool
37:
38: =head1 SYNOPSIS
39:
40: lonratedt provides the routines and the handler for the Advanced
41: Resource Assembly Tool (RAT), and ties the various pieces together
42: with Javascript.
43:
44: =head1 OVERVIEW
45:
46: =head2 Map Representation
47:
48: =begin latex
49:
50: %
51: \begin{figure}
52: \begin{center}\includegraphics[%
53: width=0.55\paperwidth,bb = 0 0 200 100, draft, type=eps]{Map_Example}\end{center}
54:
55:
56: \caption{\label{Map_In_Advanced_Editor}Example of a Map in the Advanced Editor}
57: \end{figure}
58: %
59: \begin{figure}
60: \begin{lyxcode}
61: <map>
62:
63: ~~<resource~id=\char`\"{}1\char`\"{}
64:
65: ~~~~src=\char`\"{}/res/msu/korte/phy231welcome.html\char`\"{}
66:
67: ~~~~type=\char`\"{}start\char`\"{}
68:
69: ~~~~title=\char`\"{}Start\char`\"{}>
70:
71: ~~~~</resource>
72:
73: ~~<resource~id=\char`\"{}2\char`\"{}
74:
75: ~~~~src=\char`\"{}\char`\"{}~type=\char`\"{}finish\char`\"{}
76:
77: ~~~~title=\char`\"{}Finish\char`\"{}>
78:
79: ~~~~</resource>
80:
81: ~~<resource~id=\char`\"{}6\char`\"{}
82:
83: ~~~~src=\char`\"{}/res/msu/korte/tests/units.problem\char`\"{}
84:
85: ~~~~type=\char`\"{}mandatory\char`\"{}
86:
87: ~~~~title=\char`\"{}Physical~Units~Test\char`\"{}>
88:
89: ~~~~</resource>
90:
91: ~~<resource~id=\char`\"{}9\char`\"{}
92:
93: ~~~~src=\char`\"{}/res/msu/korte/chapters/onedim.sequence\char`\"{}
94:
95: ~~~~title=\char`\"{}Motion~in~One~Dimension\char`\"{}>
96:
97: ~~~~</resource>
98:
99: ~~<resource~id=\char`\"{}11\char`\"{}
100:
101: ~~~~src=\char`\"{}/res/msu/bauer/bridges/units.sequence\char`\"{}
102:
103: ~~~~title=\char`\"{}Physical~Units~Refresher\char`\"{}>
104:
105: ~~~~</resource>
106:
107: ~~<condition~id=\char`\"{}19\char`\"{}
108:
109: ~~~~type=\char`\"{}stop\char`\"{}
110:
111: ~~~~value=\char`\"{}user.assessments{[}this./res/msu/korte/tests/units.problem{]}.status=solved\char`\"{}>
112:
113: ~~~~</condition>
114:
115: ~~<link~from=\char`\"{}1\char`\"{}~to=\char`\"{}6\char`\"{}></link>
116:
117: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}9\char`\"{}~condition=\char`\"{}19\char`\"{}></link>
118:
119: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}11\char`\"{}></link>
120:
121: ~~<link~from=\char`\"{}11\char`\"{}~to=\char`\"{}6\char`\"{}></link>
122:
123: ~~</map>
124: \end{lyxcode}
125:
126: \caption{\label{XML}XML for Map in Figure \ref{Map_In_Advanced_Editor}}
127: \end{figure}
128:
129: =end latex
130:
131: Fig. "XML for Map in Figure" shows the XML representation of the
132: resource map shown in Fig. "Example of a Map in the Advanced Editor",
133: which is the format in which maps are stored. In the figure, however,
134: additional graphical map layout information generated by the Advanced
135: Resource Assembly Tool is not displayed. This graphical information is
136: optional to re-generate the same graphical layout when the map is
137: brought up again in the Resource Assembly Tool, and is not needed for
138: any other system functionality.
139:
140: Maps can be generated by tools other than the Resource Assembly
141: Tool. In particular, an author might have some other representation of
142: a course sequence, which can be converted into a map using scripts. If
143: this map then were to be brought up in the Resource Assembly Tool, the
144: Tool would automatically generate a graphical layout for it. Each
145: entry of the map (resources, conditions and links) is stored in a
146: separate tag.
147:
148: Resources and conditionsX<conditions> have to have unique ID
149: numbers. These numbers are automatically generated by the Resource
150: Assembly Tool when the entry is first created, or added to the entries
151: when a map generated outside the Resource Assembly Tool is first
152: retrieved. They can also be assigned by custom scripts or added in by
153: hand.
154:
155: In the XML example, entry 1 is the start resource of the map. When
156: this map is accessed, the source (src) URL of this tag will be the
157: first resource rendered. Entry 2 is the finish resource of this
158: map. This resource will be the last resource in the sequence of
159: resources. Entry 6 is a problem resource with the given URL and title,
160: as well as the priority "mandatory". Entry 19 is a condition, which is
161: used by the link between entries 6, the problem, and 9, a
162: sequence. I<The final syntax for conditions has not yet been
163: determined.>
164:
165: =cut
166:
167: use strict;
168: use Apache::Constants qw(:common);
169: use Apache::lonnet;
170: use Apache::lonratsrv;
171: use Apache::lonsequence;
172: use Apache::loncommon;
173: use Apache::lonlocal;
174: use File::Copy;
175:
176: use vars qw(@order @resources @resparms);
177:
178:
179: # Mapread read maps into global arrays @links and @resources, determines status
180: # sets @order - pointer to resources in right order
181: # sets @resources - array with the resources with correct idx
182: #
183: sub mapread {
184: my $fn=shift;
185:
186: my @links;
187: undef @links;
188: undef @resources;
189: undef @order;
190: undef @resparms;
191: @resources=('');
192: @order=();
193: @resparms=();
194:
195: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
196: if ($errtext) { return ($errtext,2); }
197:
198: # -------------------------------------------------------------------- Read map
199: foreach (split(/\<\&\>/,$outtext)) {
200: my ($command,$number,$content)=split(/\<\:\>/,$_);
201: if ($command eq 'objcont') {
202: $resources[$number]=$content;
203: }
204: if ($command eq 'objlinks') {
205: $links[$number]=$content;
206: }
207: if ($command eq 'objparms') {
208: if ($resparms[$number]) {
209: $resparms[$number].='&&&'.$content;
210: } else {
211: $resparms[$number]=$content;
212: }
213: }
214: }
215: # ------------------------------------------------------- Is this a linear map?
216: my @starters=();
217: my @endings=();
218: undef @starters;
219: undef @endings;
220:
221: foreach (@links) {
222: if (defined($_)) {
223: my ($start,$end,$cond)=split(/\:/,$_);
224: if ((defined($starters[$start])) || (defined($endings[$end]))) {
225: return
226: (&mt('Map has branchings. Use advanced editor.'),1);
227: }
228: $starters[$start]=1;
229: $endings[$end]=1;
230: if ($cond) {
231: return
232: (&mt('Map has conditions. Use advanced editor.'),1);
233: }
234: }
235:
236: }
237: for (my $i=1; $i<=$#resources; $i++) {
238: if (defined($resources[$i])) {
239: unless (($starters[$i]) || ($endings[$i])) {
240: return
241: (&mt('Map has unconnected resources. Use advanced editor.'),1);
242: }
243: }
244: }
245: # ---------------------------------------------- Did we just read an empty map?
246: if ($#resources<1) {
247: undef $resources[0];
248: $resources[1]=':::start';
249: $resources[2]=':::finish';
250: }
251: # -------------------------------------------------- This is a linear map, sort
252:
253: my $startidx=0;
254: my $endidx=0;
255: for (my $i=0; $i<=$#resources; $i++) {
256: if (defined($resources[$i])) {
257: my ($title,$url,$ext,$type)=split(/\:/,$resources[$i]);
258: if ($type eq 'start') { $startidx=$i; }
259: if ($type eq 'finish') { $endidx=$i; }
260: }
261: }
262: my $k=0;
263: my $currentidx=$startidx;
264: $order[$k]=$currentidx;
265: for (my $i=0; $i<=$#resources; $i++) {
266: foreach (@links) {
267: my ($start,$end)=split(/\:/,$_);
268: if ($start==$currentidx) {
269: $currentidx=$end;
270: $k++;
271: $order[$k]=$currentidx;
272: last;
273: }
274: }
275: if ($currentidx==$endidx) { last; }
276: }
277: return $errtext;
278: }
279:
280: # ---------------------------------------------- Read a map as well as possible
281: # Also used by the sequence handler
282: # Call lonsequence::attemptread to read from resource space
283: #
284: sub attemptread {
285: my $fn=shift;
286:
287: my @links;
288: undef @links;
289: my @theseres;
290: undef @theseres;
291:
292: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
293: if ($errtext) { return @theseres }
294:
295: # -------------------------------------------------------------------- Read map
296: foreach (split(/\<\&\>/,$outtext)) {
297: my ($command,$number,$content)=split(/\<\:\>/,$_);
298: if ($command eq 'objcont') {
299: $theseres[$number]=$content;
300: }
301: if ($command eq 'objlinks') {
302: $links[$number]=$content;
303: }
304: }
305:
306: # --------------------------------------------------------------- Sort, sort of
307:
308: my @objsort=();
309: undef @objsort;
310:
311: my @data1=();
312: my @data2=();
313: undef @data1;
314: undef @data2;
315:
316: my $k;
317: my $kj;
318: my $j;
319: my $ij;
320:
321: for ($k=1;$k<=$#theseres;$k++) {
322: if (defined($theseres[$k])) {
323: $objsort[$#objsort+1]=$k;
324: }
325: }
326:
327: for ($k=1;$k<=$#links;$k++) {
328: if (defined($links[$k])) {
329: @data1=split(/\:/,$links[$k]);
330: $kj=-1;
331: for (my $j=0;$j<=$#objsort;$j++) {
332: if ((split(/\:/,$objsort[$j]))[0]==$data1[0]) {
333: $kj=$j;
334: }
335: }
336: if ($kj!=-1) { $objsort[$kj].=':'.$data1[1]; }
337: }
338: }
339: for ($k=0;$k<=$#objsort;$k++) {
340: for ($j=0;$j<=$#objsort;$j++) {
341: if ($k!=$j) {
342: @data1=split(/\:/,$objsort[$k]);
343: @data2=split(/\:/,$objsort[$j]);
344: my $dol=$#data1+1;
345: my $dtl=$#data2+1;
346: if ($dol+$dtl<1000) {
347: for ($kj=1;$kj<$dol;$kj++) {
348: if ($data1[$kj]==$data2[0]) {
349: for ($ij=1;$ij<$dtl;$ij++) {
350: $data1[$#data1+1]=$data2[$ij];
351: }
352: }
353: }
354: for ($kj=1;$kj<$dtl;$kj++) {
355: if ($data2[$kj]==$data1[0]) {
356: for ($ij=1;$ij<$dol;$ij++) {
357: $data2[$#data2+1]=$data1[$ij];
358: }
359: }
360: }
361: $objsort[$k]=join(':',@data1);
362: $objsort[$j]=join(':',@data2);
363: }
364: }
365: }
366: }
367: # ---------------------------------------------------------------- Now sort out
368:
369: @objsort=sort {
370: my @data1=split(/\:/,$a);
371: my @data2=split(/\:/,$b);
372: my $rvalue=0;
373: my $k;
374: for ($k=1;$k<=$#data1;$k++) {
375: if ($data1[$k]==$data2[0]) { $rvalue--; }
376: }
377: for ($k=1;$k<=$#data2;$k++) {
378: if ($data2[$k]==$data1[0]) { $rvalue++; }
379: }
380: if ($rvalue==0) { $rvalue=$#data2-$#data1; }
381: $rvalue;
382: } @objsort;
383:
384: my @outres=();
385: undef @outres;
386:
387: for ($k=0;$k<=$#objsort;$k++) {
388: $outres[$k]=$theseres[(split(/\:/,$objsort[$k]))[0]];
389: }
390: return @outres;
391: }
392:
393: # --------------------------------------------------------- Build up RAT screen
394: sub ratedt {
395: my ($r,$url)=@_;
396: $r->print(<<ENDDOCUMENT);
397:
398: <html>
399: <head>
400: <script language="JavaScript">
401: var flag=0;
402: </script>
403: </head>
404: <frameset rows="1,50,*" border=0>
405: <frame name=server src="$url/loadonly/ratserver" noresize noscroll>
406: <frame name=code src="/adm/rat/code.html">
407: <frame name=mapout src="/adm/rat/map.html">
408: </frameset>
409: </html>
410:
411: ENDDOCUMENT
412: }
413:
414: # ---------------------------------------------------------------- Make buttons
415:
416: sub buttons {
417: my $adv=shift;
418: my $output='<form method=post>';
419: if ($adv==1) {
420: $output.='<input type=submit name=forceadv value="'.&mt('Edit').'">'.
421: &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');;
422: } else {
423: unless ($adv==2) {
424: $output.='<input type=submit name=forcesmp value="'.&mt('Simple Edit').'">'.
425: &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation');
426: }
427: $output.='<input type=submit name=forceadv value="'.&mt('Advanced Edit').'">'.
428: &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');
429: }
430: return $output.'</form><hr>';
431: }
432:
433: # ----------------------------------------------------------- Paste into target
434: # modifies @order, @resources
435:
436: sub pastetarget {
437: my ($after,@which)=@_;
438: my @insertorder=();
439: foreach (@which) {
440: if (defined($_)) {
441: my ($name,$url)=split(/\=/,$_);
442: $name=&Apache::lonnet::unescape($name);
443: $url=&Apache::lonnet::unescape($url);
444: if ($url) {
445: my $idx=$#resources+1;
446: $insertorder[$#insertorder+1]=$idx;
447: my $ext='false';
448: if ($url=~/^http\:\/\//) { $ext='true'; }
449: $url=~s/\:/\:/g;
450: $name=~s/\:/\:/g;
451: $resources[$idx]=$name.':'.$url.':'.$ext.':normal:res';
452: }
453: }
454: }
455: my @oldorder=splice(@order,$after);
456: @order=(@order,@insertorder,@oldorder);
457: }
458:
459: # ------------------------------------------------ Get start and finish correct
460: # modifies @resources
461:
462: sub startfinish {
463: # Remove all start and finish
464: foreach (@order) {
465: my ($name,$url,$ext)=split(/\:/,$resources[$_]);
466: if ($url=~/http\&colon\:\/\//) { $ext='true'; }
467: $resources[$_]=$name.':'.$url.':'.$ext.':normal:res';
468: }
469: # Garbage collection
470: my $stillchange=1;
471: while (($#order>1) && ($stillchange)) {
472: $stillchange=0;
473: for (my $i=0;$i<=$#order;$i++) {
474: my ($name,$url,$ext)=split(/\:/,$resources[$order[$i]]);
475: unless ($url) {
476: # Take out empty resource
477: for (my $j=$i+1;$j<=$#order;$j++) {
478: $order[$j-1]=$order[$j];
479: }
480: $#order--;
481: $stillchange=1;
482: last;
483: }
484: }
485: }
486: # Put in a start resource
487: my ($name,$url,$ext)=split(/\:/,$resources[$order[0]]);
488: $resources[$order[0]]=$name.':'.$url.':'.$ext.':start:res';
489: # Make sure this has at least start and finish
490: if ($#order==0) {
491: $resources[$#resources+1]='::false';
492: $order[1]=$#resources;
493: }
494: # Make the last one a finish resource
495: ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]);
496: $resources[$order[$#order]]=$name.':'.$url.':'.$ext.':finish:res';
497: }
498:
499: # ------------------------------------------------------------------- Store map
500:
501: sub storemap {
502: my $realfn=shift;
503: my $fn=$realfn;
504: # unless this is forced to work from the original file, use a temporary file
505: # instead
506: unless (shift) {
507: $fn=$realfn.'.tmp';
508: unless (-e $fn) {
509: copy($realfn,$fn);
510: }
511: }
512: # store data either into tmp or real file
513: &startfinish();
514: my $output='graphdef<:>no';
515: my $k=1;
516: for (my $i=0; $i<=$#order; $i++) {
517: if (defined($resources[$order[$i]])) {
518: $output.='<&>objcont<:>'.$order[$i].'<:>'.$resources[$order[$i]];
519: }
520: if (defined($resparms[$order[$i]])) {
521: foreach (split('&&&',$resparms[$order[$i]])) {
522: if ($_) {
523: $output.='<&>objparms<:>'.$order[$i].'<:>'.$_;
524: }
525: }
526: }
527: if (defined($order[$i+1])) {
528: if (defined($resources[$order[$i+1]])) {
529: $output.='<&>objlinks<:>'.$k.'<:>'.
530: $order[$i].':'.$order[$i+1].':0';
531: $k++;
532: }
533: }
534: }
535: $output=~s/http\&colon\;\/\///g;
536: $ENV{'form.output'}=$output;
537: return
538: &Apache::lonratsrv::loadmap($fn,&Apache::lonratsrv::savemap($fn,''));
539: }
540:
541: # ------------------------------------------ Store and get parameters in global
542:
543: sub storeparameter {
544: my ($to,$name,$value,$ptype)=@_;
545: my $newentry='';
546: my $nametype='';
547: foreach (split('&&&',$resparms[$to])) {
548: my ($thistype,$thisname,$thisvalue)=split('___',$_);
549: if ($thisname) {
550: unless ($thisname eq $name) {
551: $newentry.=$_.'&&&';
552: } else {
553: $nametype=$thistype;
554: }
555: }
556: }
557: unless ($ptype) { $ptype=$nametype; }
558: unless ($ptype) { $ptype='string'; }
559: $newentry.=$ptype.'___'.$name.'___'.$value;
560: $resparms[$to]=$newentry;
561: }
562:
563: sub delparameter {
564: my ($to,$name)=@_;
565: my $newentry='';
566: my $nametype='';
567: foreach (split('&&&',$resparms[$to])) {
568: my ($thistype,$thisname,$thisvalue)=split('___',$_);
569: if ($thisname) {
570: unless ($thisname eq $name) {
571: $newentry.=$_.'&&&';
572: }
573: }
574: }
575: $resparms[$to]=$newentry;
576: }
577:
578: sub getparameter {
579: my ($to,$name)=@_;
580: my $value=undef;
581: my $ptype=undef;
582: foreach (split('&&&',$resparms[$to])) {
583: my ($thistype,$thisname,$thisvalue)=split('___',$_);
584: if ($thisname eq $name) {
585: $value=$thisvalue;
586: $ptype=$thistype;
587: }
588: }
589: return ($value,$ptype);
590: }
591:
592: # ----------------------------------------------------------------- Edit script
593: sub editscript {
594: my $mode=shift;
595: my $resurl=&Apache::loncommon::lastresurl();
596: return(<<ENDSCRIPT);
597: var srch;
598: var srchflag=-1; // 1 means currently open
599: // 0 means closed (but has been open)
600: // -1 means never yet opened/defined
601: var srchmode='';
602:
603: var idx;
604: var idxflag=-1; // 1 means currently open
605: // 0 means closed (but has been open)
606: // -1 means never yet opened/defined
607: var idxmode='';
608:
609: // ------------------------------------------------------ Clears indexer window
610: function idxclear() {
611: idx.document.clear();
612: }
613:
614: // ------------------------------------------------------- Clears search window
615: function srchclear() {
616: srch.document.clear();
617: }
618:
619: // ------------------------------------------------------ Closes indexer window
620: function idxclose() {
621: if (idx && !idx.closed) {
622: idxflag=0;
623: idx.close();
624: }
625: }
626:
627: // ------------------------------------------------------- Closes search window
628: function srchclose() {
629: if (srch && !srch.closed) {
630: srchflag=0;
631: srch.close();
632: }
633: }
634:
635: // -------------------------------------------------------- Open indexer window
636: function idxopen(mode) {
637: var options="scrollbars=1,resizable=1,menubar=0";
638: idxmode=mode;
639: idxflag=1;
640: idx=open("$resurl/?launch=1&mode=$mode&catalogmode="+mode,"idxout",options);
641: idx.focus();
642: }
643:
644: // --------------------------------------------------------- Open search window
645: function srchopen(mode) {
646: var options="scrollbars=1,resizable=1,menubar=0";
647: srchmode=mode;
648: srchflag=1;
649: srch=open("/adm/searchcat?launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
650: srch.focus();
651: }
652: // ----------------------------------------------------- launch indexer browser
653: function groupsearch() {
654: srchcheck('groupsearch');
655: }
656:
657: function groupimport() {
658: idxcheck('groupimport');
659: }
660: // ------------------------------------------------------- Do srch status check
661: function srchcheck(mode) {
662: if (!srch || srch.closed || srchmode!=mode) {
663: srchopen(mode);
664: }
665: srch.focus();
666: }
667:
668: // -------------------------------------------------------- Do idx status check
669: function idxcheck(mode) {
670: if (!idx || idx.closed || idxmode!=mode) {
671: idxopen(mode);
672: }
673: idx.focus();
674: }
675:
676:
677: var editbrowser;
678: function openbrowser(formname,elementname,only,omit) {
679: var url = '$resurl/?';
680: if (editbrowser == null) {
681: url += 'launch=1&';
682: }
683: url += 'catalogmode=interactive&';
684: url += 'mode=edit&';
685: url += 'form=' + formname + '&';
686: if (only != null) {
687: url += 'only=' + only + '&';
688: }
689: if (omit != null) {
690: url += 'omit=' + omit + '&';
691: }
692: url += 'element=' + elementname + '';
693: var title = 'Browser';
694: var options = 'scrollbars=1,resizable=1,menubar=0';
695: options += ',width=700,height=600';
696: editbrowser = open(url,title,options,'1');
697: editbrowser.focus();
698: }
699: ENDSCRIPT
700: }
701: # ------------------------------------------------------- Simple edit processor
702:
703: sub smpedt {
704: my ($r,$url,$errtext)=@_;
705: my $buttons=&buttons(2);
706: my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
707: my $targetmsg='';
708: if ($ENV{'form.save'}) {
709: copy($tmpfn,&Apache::lonnet::filelocation('',$url));
710: unlink($tmpfn);
711: my ($errtext,$fatal)=
712: &mapread(&Apache::lonnet::filelocation('',$url),'');
713: unless ($fatal) {
714: $targetmsg='<b>'.&mt('Saved.').'</b><br />';
715: } else {
716: $targetmsg='<b>'.&mt('An error occured while saving.').'</b><br />';
717: }
718: }
719: if ($ENV{'form.revert'}) {
720: $targetmsg='<b>'.&mt('Reverted.').'</b><br />';
721: unlink($tmpfn);
722: my ($errtext,$fatal)=
723: &mapread(&Apache::lonnet::filelocation('',$url),'');
724: }
725: if (-e $tmpfn) {
726: $targetmsg=
727: '<b><font color="red">'.&mt('You are working with an unsaved version of your map.').'</font></b><br>';
728: my ($errtext,$fatal)=&mapread($tmpfn,'');
729: }
730: # ---------------------------------------------------------- Process form input
731:
732: my @importselect=();
733: my @targetselect=();
734: undef @importselect;
735: undef @targetselect;
736: if (defined($ENV{'form.importsel'})) {
737: if (ref($ENV{'form.importsel'})) {
738: @importselect=sort(@{$ENV{'form.importsel'}});
739: } else {
740: @importselect=($ENV{'form.importsel'});
741: }
742: }
743: if (defined($ENV{'form.target'})) {
744: if (ref($ENV{'form.target'})) {
745: @targetselect=sort(@{$ENV{'form.target'}});
746: } else {
747: @targetselect=($ENV{'form.target'});
748: }
749: }
750: # ============================================================ Process commands
751:
752: my $targetdetail=$ENV{'form.targetdetail'};
753: my $importdetail=$ENV{'form.curimpdetail'};
754:
755: # ---------------------------------------------------- Importing from groupsort
756: if (($ENV{'form.importdetail'}) && (!$ENV{'form.impfortarget'})) {
757:
758: $importdetail='';
759: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
760:
761: my $lastsel;
762:
763: if (defined($importselect[-1])) {
764: $lastsel=$importselect[-1];
765: } else {
766: $lastsel=$#curimport;
767: }
768:
769: for (my $i=0;$i<=$lastsel;$i++) {
770: my ($name,$url)=split(/\=/,$curimport[$i]);
771: if ($url) {
772: $importdetail.='&'.$name.'='.$url;
773: }
774: }
775:
776: $importdetail.='&'.$ENV{'form.importdetail'};
777:
778: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
779: my ($name,$url)=split(/\=/,$curimport[$i]);
780: if ($url) {
781: $importdetail.='&'.$name.'='.$url;
782: }
783: }
784: $importdetail=~s/\&+/\&/g;
785: $importdetail=~s/^\&//;
786:
787: # ------------------------------------------------------------------- Clear all
788: } elsif ($ENV{'form.clear'}) {
789: $importdetail='';
790: # ------------------------------------------------------------ Discard selected
791: } elsif ($ENV{'form.discard'}) {
792: $importdetail='';
793: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
794: foreach (@importselect) {
795: $curimport[$_]='';
796: }
797: for (my $i=0;$i<=$#curimport;$i++) {
798: my ($name,$url)=split(/\=/,$curimport[$i]);
799: if ($url) {
800: $importdetail.='&'.$name.'='.$url;
801: }
802: }
803: # --------------------------------------------------------- Loading another map
804: } elsif ($ENV{'form.loadmap'}) {
805: $importdetail='';
806: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
807:
808: my $lastsel;
809:
810: if (defined($importselect[-1])) {
811: $lastsel=$importselect[-1];
812: } else {
813: $lastsel=$#curimport;
814: }
815:
816: for (my $i=0;$i<=$lastsel;$i++) {
817: my ($name,$url)=split(/\=/,$curimport[$i]);
818: if ($url) {
819: $importdetail.='&'.$name.'='.$url;
820: }
821: }
822:
823: foreach (
824: &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$ENV{'form.importmap'}))) {
825: my ($name,$url)=split(/\:/,$_);
826: if ($url) {
827: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
828: &Apache::lonnet::escape($url);
829: }
830: }
831:
832: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
833: my ($name,$url)=split(/\=/,$curimport[$i]);
834: if ($url) {
835: $importdetail.='&'.$name.'='.$url;
836: }
837: }
838: $importdetail=~s/\&+/\&/g;
839: $importdetail=~s/^\&//;
840:
841: # ------------------------------------------------ Groupimport/search to target
842: } elsif ($ENV{'form.importdetail'}) {
843: my $lastsel;
844: if (defined($targetselect[-1])) {
845: $lastsel=$targetselect[-1];
846: } else {
847: $lastsel=$#order+1;
848: }
849: &pastetarget($lastsel,split(/\&/,$ENV{'form.importdetail'}));
850: &storemap(&Apache::lonnet::filelocation('',$url));
851: # ------------------------------------------------------------------------- Cut
852: } elsif (($ENV{'form.cut'}) || ($ENV{'form.copy'})) {
853: $importdetail='';
854: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
855:
856: my $lastsel;
857:
858: if (defined($importselect[-1])) {
859: $lastsel=$importselect[-1];
860: } else {
861: $lastsel=$#curimport;
862: }
863:
864: for (my $i=0;$i<=$lastsel;$i++) {
865: my ($name,$url)=split(/\=/,$curimport[$i]);
866: if ($url) {
867: $importdetail.='&'.$name.'='.$url;
868: }
869: }
870:
871: foreach (@targetselect) {
872: my ($name,$url)=split(/\:/,$resources[$order[$_-1]]);
873: if ($url) {
874: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
875: &Apache::lonnet::escape($url);
876: }
877: }
878:
879: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
880: my ($name,$url)=split(/\=/,$curimport[$i]);
881: if ($url) {
882: $importdetail.='&'.$name.'='.$url;
883: }
884: }
885: $importdetail=~s/\&+/\&/g;
886: $importdetail=~s/^\&//;
887:
888: if ($ENV{'form.cut'}) {
889: my @neworder=();
890: for (my $i=0;$i<=$#order;$i++) {
891: my $include=1;
892: foreach (@targetselect) {
893: if ($_-1==$i) { $include=0; }
894: }
895: if ($include) { $neworder[$#neworder+1]=$order[$i]; }
896: }
897: @order=@neworder;
898: &storemap(&Apache::lonnet::filelocation('',$url));
899: }
900:
901: # ----------------------------------------------------------------------- Paste
902: } elsif ($ENV{'form.paste'}) {
903: my $lastsel;
904: if (defined($targetselect[-1])) {
905: $lastsel=$targetselect[-1];
906: } else {
907: $lastsel=$#order+1;
908: }
909: my @newsequence;
910: my @curimport=split(/\&/,$ENV{'form.curimpdetail'});
911: foreach (@importselect) {
912: $newsequence[$#newsequence+1]=$curimport[$_];
913: }
914: &pastetarget($lastsel,@newsequence);
915: &storemap(&Apache::lonnet::filelocation('',$url));
916: # -------------------------------------------------------------------- Move up
917: } elsif ($ENV{'form.moveup'}) {
918: foreach (sort @targetselect) {
919: if ($_-1>0) {
920: my $movethis=$order[$_-1];
921: $order[$_-1]=$order[$_-2];
922: $order[$_-2]=$movethis;
923: }
924: }
925: &storemap(&Apache::lonnet::filelocation('',$url));
926: # ------------------------------------------------------------------ Move down
927: } elsif ($ENV{'form.movedown'}) {
928: foreach (reverse sort @targetselect) {
929: if ($_-1<$#order) {
930: my $movethis=$order[$_-1];
931: $order[$_-1]=$order[$_];
932: $order[$_]=$movethis;
933: }
934: }
935: &storemap(&Apache::lonnet::filelocation('',$url));
936: # --------------------------------------------------------------------- Rename
937: } elsif ($ENV{'form.renameres'}) {
938: my $residx=$Apache::lonratedt::order[$ENV{'form.renameidx'}-1];
939: my ($name,@resrest)=split(/\:/,$Apache::lonratedt::resources[$residx]);
940: $name=$ENV{'form.renametitle'};
941: $name=~s/\:/\&colon\;/g;
942: $Apache::lonratedt::resources[$residx]=$name.':'.join(':',@resrest);
943: &storemap(&Apache::lonnet::filelocation('',$url));
944: }
945: # ------------------------------------------------------------ Assemble windows
946:
947: my $idx=-1;
948: $importdetail='&'.$importdetail;
949: $importdetail=~s/^\&+/\&/;
950: my $importwindow=
951: '<option value="-1"> ---- '.&mt('Import and Paste Area').' ---- </option>'.
952: join("\n",map {
953: $idx++;
954: if ($_) {
955: my ($name,$url)=split(/\=/,$_);
956: unless ($name) { $name=(split(/\//,$url))[-1]; }
957: unless ($name) { $name='EMPTY'; }
958: '<option value="'.$idx.'">'.&Apache::lonnet::unescape($name).
959: '</option>';
960: }
961: } split(/\&/,$importdetail));
962:
963: $idx=0;
964: $targetdetail='';
965: my $targetwindow=
966: '<option value="0"> ------- '.&mt('Target Edit Map').' ------- </option>'.
967: join("\n",map {
968: my ($name,$url)=split(/\:/,$resources[$_]);
969: unless ($name) { $name=(split(/\//,$url))[-1]; }
970: unless ($name) { $name='EMPTY'; }
971: $targetdetail.='&'.&Apache::lonnet::escape($name).'='.
972: &Apache::lonnet::escape($url);
973: $idx++;
974: $name=~s/\:/\:/g;
975: '<option value="'.$idx.'">'.$name.'</option>';
976: } @order);
977:
978: # ----------------------------------------------------- Start simple RAT screen
979: my $editscript=&editscript('simple');
980: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1).
981: &Apache::loncommon::help_open_menu('','Sequence_Simple_Editor_Creation','Sequence_Simple_Editor_Creation','',6,'RAT');
982: my %lt=&Apache::lonlocal::texthash(
983: 'sa' => 'Save',
984: 'nt' => 'New Title',
985: 'se' => 'Search',
986: 'im' => 'Import',
987: 'vi' => 'View',
988: 'lm' => 'Load Map',
989: 'ds' => 'Discard Selected',
990: 'ca' => 'Clear All',
991: 'ta' => 'Temporary Assembly Workspace',
992: 'rv' => 'Revert to Last Saved',
993: 'sa' => 'Save',
994: 'mu' => 'Move Up',
995: 'md' => 'Move Down',
996: 're' => 'Rename',
997: 'as' => 'after selected',
998: 'cs' => 'Cut selected',
999: 'ps' => 'Copy selected',
1000: 'pas' => 'Paste after selected',
1001: );
1002: $r->print(<<ENDSMPHEAD);
1003: <html>
1004: <head>
1005: <script>
1006:
1007: $editscript
1008:
1009: function openview(entry) {
1010: var url=unescape((entry.split('='))[1]);
1011: var parts=new Array;
1012: parts=url.split(':');
1013: url=parts.join(':');
1014: if (url) { open(url,'cat'); }
1015: }
1016:
1017: function viewtarget() {
1018: openview((document.forms.simpleedit.targetdetail.value.split('&'))
1019: [document.forms.simpleedit.target.selectedIndex]);
1020: }
1021:
1022: function viewimport() {
1023: openview((document.forms.simpleedit.curimpdetail.value.split('&'))
1024: [document.forms.simpleedit.importsel.selectedIndex]);
1025: }
1026:
1027: function renametarget() {
1028: var selidx=document.forms.simpleedit.target.selectedIndex;
1029: var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
1030: [selidx];
1031: var oldname=unescape((entry.split('='))[0]);
1032: var nameparts=oldname.split(':');
1033: oldname=unescape(nameparts.join(':'));
1034: nameparts=oldname.split('"');
1035: oldname=unescape(nameparts.join('"'));
1036: nameparts=oldname.split(''');
1037: oldname=unescape(nameparts.join("'"));
1038: newtitle=prompt('$lt{'nt'}',oldname);
1039: if (newtitle) {
1040: document.forms.simpleedit.renameres.value=1;
1041: document.forms.simpleedit.renameidx.value=selidx;
1042: document.forms.simpleedit.renametitle.value=newtitle;
1043: document.forms.simpleedit.submit();
1044: }
1045: }
1046:
1047: </script>
1048: </head>
1049: $bodytag
1050: $buttons
1051: <font color=red>$errtext</font>
1052: <form name=simpleedit method=post>
1053: <input type=hidden name=forcesmp value=1>
1054: <input type=hidden name=renameres value=0>
1055: <input type=hidden name=renametitle value=''>
1056: <input type=hidden name=renameidx value=0>
1057: <table>
1058: <tr><th width="40%">$lt{'ta'}</th>
1059: <th> </th>
1060: <th width="40%">File: $url</th></tr>
1061: <tr><td bgcolor="#FFFFCC">
1062: <input type=button onClick="javascript:groupsearch()" value="$lt{'se'}">
1063: <input type=button onClick="javascript:groupimport();" value="$lt{'im'}">
1064: $lt{'as'}
1065: <hr>
1066: <input type=text size=20 name=importmap>
1067: <input type=button
1068: onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
1069: value="Select Map"><input type=submit name=loadmap value="$lt{'lm'}"><hr>
1070: <input type=submit name="discard" value="$lt{'ds'}">
1071: <input type=submit name="clear" value="$lt{'ca'}">
1072: <input type=button onClick="javascript:viewimport()" value="$lt{'vi'}">
1073:
1074: </td><td> </td><td bgcolor="#FFFFCC">
1075:
1076: <input type=button onClick=
1077: "javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}">
1078: <input type=button onClick=
1079: "javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}">
1080: $lt{'as'}
1081: <hr>
1082: <input type=submit name="moveup" value="$lt{'mu'}">
1083: <input type=submit name="movedown" value="$lt{'md'}">
1084: <input type=button onClick="javascript:renametarget()" value="$lt{'re'}">
1085: <hr>$targetmsg
1086: <input type=submit name="revert" value="$lt{'rv'}">
1087: <input type=submit name="save" value="$lt{'sa'}">
1088: <input type=button onClick="javascript:viewtarget()" value="$lt{'vi'}">
1089: </td></tr>
1090:
1091: <tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
1092: $importwindow
1093: </select>
1094: </td>
1095: <td bgcolor="#FFFFAA" align="center">
1096: $lt{'cs'}<br>
1097: <input type=submit name=cut value='<<<'><p>
1098: <hr>
1099: $lt{'ps'}<br>
1100: <input type=submit name=copy value='<--'><p>
1101: <hr>
1102: $lt{'pas'}<br>
1103: <input type=submit name=paste value='-->'>
1104: </td>
1105: <td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
1106: $targetwindow
1107: </select>
1108: </table>
1109: <input type=hidden name=importdetail value="">
1110: <input type=hidden name=curimpdetail value="$importdetail">
1111: <input type=hidden name=targetdetail value="$targetdetail">
1112: <input type=hidden name=impfortarget value="0">
1113: </form>
1114: </body></html>
1115: ENDSMPHEAD
1116: }
1117:
1118: # ----------------------------------------------------------------- No such dir
1119: sub nodir {
1120: my ($r,$dir)=@_;
1121: $dir=~s/^\/home\/\w+\/public\_html//;
1122: $r->print(<<ENDNODIR);
1123: <html>
1124: <body bgcolor='#FFFFFF'>
1125: <h1>No such directory: $dir</h1>
1126: </body>
1127: </html>
1128: ENDNODIR
1129: }
1130:
1131: # ---------------------------------------------------------------- View Handler
1132:
1133: sub viewmap {
1134: my ($r,$url,$adv,$errtext)=@_;
1135: $r->print('<html>'.
1136: &Apache::loncommon::bodytag('Edit Content of a Map').
1137: &Apache::loncommon::help_open_menu('','','','',6,'RAT').
1138: &buttons($adv));
1139: if ($errtext) {
1140: $r->print($errtext.'<hr />');
1141: }
1142: my $idx=0;
1143: $r->print('<h1>'.$url.'</h1>');
1144: if ($adv) {
1145: $r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />');
1146: }
1147: foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) {
1148: if (defined($_)) {
1149: $idx++;
1150: my ($title,$url)=split(/\:/,$_);
1151: $title=~s/\&colon\;/\:/g;
1152: $url=~s/\&colon\;/\:/g;
1153: unless ($title) { $title=(split(/\//,$url))[-1] };
1154: unless ($title) { $title='<i>Empty</i>'; }
1155: if ($url) {
1156: $r->print('<a href="'.&Apache::lonratsrv::qtescape($url).'">');
1157: }
1158: $r->print(&Apache::lonratsrv::qtescape($title));
1159: if ($url) { $r->print('</a>'); }
1160: $r->print('<br>');
1161: }
1162: }
1163: $r->print('</body></html>');
1164: }
1165:
1166: # ================================================================ Main Handler
1167:
1168: sub handler {
1169: my $r=shift;
1170: &Apache::loncommon::content_type($r,'text/html');
1171: $r->send_http_header;
1172:
1173: return OK if $r->header_only;
1174: my $target = $ENV{'form.grade_target'};
1175: if ($target eq 'meta') {
1176: &Apache::loncommon::content_type($r,'text/html');
1177: $r->send_http_header;
1178: return OK;
1179: }
1180:
1181: my $url=$r->uri;
1182: my $fn=&Apache::lonnet::filelocation('',$url);
1183:
1184: my ($dir)=($fn=~/^(.+)\/[^\/]+$/);
1185: unless (-e $dir) {
1186: &nodir($r,$dir);
1187: return OK;
1188: }
1189:
1190: # ------------------------------------------- Determine which tools can be used
1191: my $adv=0;
1192:
1193: unless ($ENV{'form.forcesmp'}) {
1194: if ($ENV{'form.forceadv'}) {
1195: $adv=1;
1196: } elsif (my $fh=Apache::File->new($fn)) {
1197: my $allmap=join('',<$fh>);
1198: $adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is);
1199: }
1200: }
1201:
1202: my $errtext='';
1203: my $fatal=0;
1204:
1205: # -------------------------------------------------------------------- Load map
1206: ($errtext,$fatal)=&mapread($fn,$errtext);
1207:
1208: if ($fatal==1) { $adv=1; }
1209:
1210: # ----------------------------------- adv==1 now means "graphical MUST be used"
1211:
1212: if ($ENV{'form.forceadv'}) {
1213: &ratedt($r,$url);
1214: } elsif ($ENV{'form.forcesmp'}) {
1215: &smpedt($r,$url,$errtext);
1216: } else {
1217: &viewmap($r,$url,$adv,$errtext);
1218: }
1219: return OK;
1220: }
1221:
1222: 1;
1223: __END__
1224:
1225:
1226:
1227:
1228:
1229:
1230:
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