1: # The LearningOnline Network with CAPA
2: # Edit Handler for RAT Maps
3: #
4: # $Id: lonratedt.pm,v 1.70 2005/06/08 17:42:01 www Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29:
30: package Apache::lonratedt;
31:
32: =pod
33:
34: =head1 NAME
35:
36: Apache::lonratedt: advanced resource assembly tool
37:
38: =head1 SYNOPSIS
39:
40: lonratedt provides the routines and the handler for the Advanced
41: Resource Assembly Tool (RAT), and ties the various pieces together
42: with Javascript.
43:
44: =head1 OVERVIEW
45:
46: =head2 Map Representation
47:
48: =begin latex
49:
50: %
51: \begin{figure}
52: \begin{center}\includegraphics[%
53: width=0.55\paperwidth,bb = 0 0 200 100, draft, type=eps]{Map_Example}\end{center}
54:
55:
56: \caption{\label{Map_In_Advanced_Editor}Example of a Map in the Advanced Editor}
57: \end{figure}
58: %
59: \begin{figure}
60: \begin{lyxcode}
61: <map>
62:
63: ~~<resource~id=\char`\"{}1\char`\"{}
64:
65: ~~~~src=\char`\"{}/res/msu/korte/phy231welcome.html\char`\"{}
66:
67: ~~~~type=\char`\"{}start\char`\"{}
68:
69: ~~~~title=\char`\"{}Start\char`\"{}>
70:
71: ~~~~</resource>
72:
73: ~~<resource~id=\char`\"{}2\char`\"{}
74:
75: ~~~~src=\char`\"{}\char`\"{}~type=\char`\"{}finish\char`\"{}
76:
77: ~~~~title=\char`\"{}Finish\char`\"{}>
78:
79: ~~~~</resource>
80:
81: ~~<resource~id=\char`\"{}6\char`\"{}
82:
83: ~~~~src=\char`\"{}/res/msu/korte/tests/units.problem\char`\"{}
84:
85: ~~~~type=\char`\"{}mandatory\char`\"{}
86:
87: ~~~~title=\char`\"{}Physical~Units~Test\char`\"{}>
88:
89: ~~~~</resource>
90:
91: ~~<resource~id=\char`\"{}9\char`\"{}
92:
93: ~~~~src=\char`\"{}/res/msu/korte/chapters/onedim.sequence\char`\"{}
94:
95: ~~~~title=\char`\"{}Motion~in~One~Dimension\char`\"{}>
96:
97: ~~~~</resource>
98:
99: ~~<resource~id=\char`\"{}11\char`\"{}
100:
101: ~~~~src=\char`\"{}/res/msu/bauer/bridges/units.sequence\char`\"{}
102:
103: ~~~~title=\char`\"{}Physical~Units~Refresher\char`\"{}>
104:
105: ~~~~</resource>
106:
107: ~~<condition~id=\char`\"{}19\char`\"{}
108:
109: ~~~~type=\char`\"{}stop\char`\"{}
110:
111: ~~~~value=\char`\"{}user.assessments{[}this./res/msu/korte/tests/units.problem{]}.status=solved\char`\"{}>
112:
113: ~~~~</condition>
114:
115: ~~<link~from=\char`\"{}1\char`\"{}~to=\char`\"{}6\char`\"{}></link>
116:
117: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}9\char`\"{}~condition=\char`\"{}19\char`\"{}></link>
118:
119: ~~<link~from=\char`\"{}6\char`\"{}~to=\char`\"{}11\char`\"{}></link>
120:
121: ~~<link~from=\char`\"{}11\char`\"{}~to=\char`\"{}6\char`\"{}></link>
122:
123: ~~</map>
124: \end{lyxcode}
125:
126: \caption{\label{XML}XML for Map in Figure \ref{Map_In_Advanced_Editor}}
127: \end{figure}
128:
129: =end latex
130:
131: Fig. "XML for Map in Figure" shows the XML representation of the
132: resource map shown in Fig. "Example of a Map in the Advanced Editor",
133: which is the format in which maps are stored. In the figure, however,
134: additional graphical map layout information generated by the Advanced
135: Resource Assembly Tool is not displayed. This graphical information is
136: optional to re-generate the same graphical layout when the map is
137: brought up again in the Resource Assembly Tool, and is not needed for
138: any other system functionality.
139:
140: Maps can be generated by tools other than the Resource Assembly
141: Tool. In particular, an author might have some other representation of
142: a course sequence, which can be converted into a map using scripts. If
143: this map then were to be brought up in the Resource Assembly Tool, the
144: Tool would automatically generate a graphical layout for it. Each
145: entry of the map (resources, conditions and links) is stored in a
146: separate tag.
147:
148: Resources and conditionsX<conditions> have to have unique ID
149: numbers. These numbers are automatically generated by the Resource
150: Assembly Tool when the entry is first created, or added to the entries
151: when a map generated outside the Resource Assembly Tool is first
152: retrieved. They can also be assigned by custom scripts or added in by
153: hand.
154:
155: In the XML example, entry 1 is the start resource of the map. When
156: this map is accessed, the source (src) URL of this tag will be the
157: first resource rendered. Entry 2 is the finish resource of this
158: map. This resource will be the last resource in the sequence of
159: resources. Entry 6 is a problem resource with the given URL and title,
160: as well as the priority "mandatory". Entry 19 is a condition, which is
161: used by the link between entries 6, the problem, and 9, a
162: sequence. I<The final syntax for conditions has not yet been
163: determined.>
164:
165: =cut
166:
167: use strict;
168: use Apache::Constants qw(:common);
169: use Apache::lonnet;
170: use Apache::lonratsrv;
171: use Apache::lonsequence;
172: use Apache::loncommon;
173: use Apache::lonlocal;
174: use File::Copy;
175:
176: use vars qw(@order @resources @resparms @zombies);
177:
178:
179: # Mapread read maps into global arrays @links and @resources, determines status
180: # sets @order - pointer to resources in right order
181: # sets @resources - array with the resources with correct idx
182: #
183: sub mapread {
184: my $fn=shift;
185:
186: my @links;
187: undef @links;
188: undef @resources;
189: undef @order;
190: undef @resparms;
191: undef @zombies;
192:
193: @resources=('');
194: @order=();
195: @resparms=();
196: @zombies=();
197:
198: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
199: if ($errtext) { return ($errtext,2); }
200:
201: # -------------------------------------------------------------------- Read map
202: foreach (split(/\<\&\>/,$outtext)) {
203: my ($command,$number,$content)=split(/\<\:\>/,$_);
204: if ($command eq 'objcont') {
205: my ($title,$src,$ext,$type)=split(/\:/,$content);
206: if ($ext eq 'cond') { next; }
207: if ($type ne 'zombie') {
208: $resources[$number]=$content;
209: } else {
210: $zombies[$number]=$content;
211: }
212: }
213: if ($command eq 'objlinks') {
214: $links[$number]=$content;
215: }
216: if ($command eq 'objparms') {
217: if ($resparms[$number]) {
218: $resparms[$number].='&&&'.$content;
219: } else {
220: $resparms[$number]=$content;
221: }
222: }
223: }
224: # ------------------------------------------------------- Is this a linear map?
225: my @starters=();
226: my @endings=();
227: undef @starters;
228: undef @endings;
229:
230: foreach (@links) {
231: if (defined($_)) {
232: my ($start,$end,$cond)=split(/\:/,$_);
233: if ((defined($starters[$start])) || (defined($endings[$end]))) {
234: return
235: (&mt('Map has branchings. Use advanced editor.'),1);
236: }
237: $starters[$start]=1;
238: $endings[$end]=1;
239: if ($cond) {
240: return
241: (&mt('Map has conditions. Use advanced editor.'),1);
242: }
243: }
244:
245: }
246: for (my $i=1; $i<=$#resources; $i++) {
247: if (defined($resources[$i])) {
248: unless (($starters[$i]) || ($endings[$i])) {
249: return
250: (&mt('Map has unconnected resources. Use advanced editor.'),1);
251: }
252: }
253: }
254: # ---------------------------------------------- Did we just read an empty map?
255: if ($#resources<1) {
256: undef $resources[0];
257: $resources[1]=':::start';
258: $resources[2]=':::finish';
259: }
260: # -------------------------------------------------- This is a linear map, sort
261:
262: my $startidx=0;
263: my $endidx=0;
264: for (my $i=0; $i<=$#resources; $i++) {
265: if (defined($resources[$i])) {
266: my ($title,$url,$ext,$type)=split(/\:/,$resources[$i]);
267: if ($type eq 'start') { $startidx=$i; }
268: if ($type eq 'finish') { $endidx=$i; }
269: }
270: }
271: my $k=0;
272: my $currentidx=$startidx;
273: $order[$k]=$currentidx;
274: for (my $i=0; $i<=$#resources; $i++) {
275: foreach (@links) {
276: my ($start,$end)=split(/\:/,$_);
277: if ($start==$currentidx) {
278: $currentidx=$end;
279: $k++;
280: $order[$k]=$currentidx;
281: last;
282: }
283: }
284: if ($currentidx==$endidx) { last; }
285: }
286: return $errtext;
287: }
288:
289: # ---------------------------------------------- Read a map as well as possible
290: # Also used by the sequence handler
291: # Call lonsequence::attemptread to read from resource space
292: #
293: sub attemptread {
294: my $fn=shift;
295:
296: my @links;
297: undef @links;
298: my @theseres;
299: undef @theseres;
300:
301: my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
302: if ($errtext) { return @theseres }
303:
304: # -------------------------------------------------------------------- Read map
305: foreach (split(/\<\&\>/,$outtext)) {
306: my ($command,$number,$content)=split(/\<\:\>/,$_);
307: if ($command eq 'objcont') {
308: my ($title,$src,$ext,$type)=split(/\:/,$content);
309: unless ($type eq 'zombie') {
310: $theseres[$number]=$content;
311: }
312: }
313: if ($command eq 'objlinks') {
314: $links[$number]=$content;
315: }
316: }
317:
318: # --------------------------------------------------------------- Sort, sort of
319:
320: my @objsort=();
321: undef @objsort;
322:
323: my @data1=();
324: my @data2=();
325: undef @data1;
326: undef @data2;
327:
328: my $k;
329: my $kj;
330: my $j;
331: my $ij;
332:
333: for ($k=1;$k<=$#theseres;$k++) {
334: if (defined($theseres[$k])) {
335: $objsort[$#objsort+1]=$k;
336: }
337: }
338:
339: for ($k=1;$k<=$#links;$k++) {
340: if (defined($links[$k])) {
341: @data1=split(/\:/,$links[$k]);
342: $kj=-1;
343: for (my $j=0;$j<=$#objsort;$j++) {
344: if ((split(/\:/,$objsort[$j]))[0]==$data1[0]) {
345: $kj=$j;
346: }
347: }
348: if ($kj!=-1) { $objsort[$kj].=':'.$data1[1]; }
349: }
350: }
351: for ($k=0;$k<=$#objsort;$k++) {
352: for ($j=0;$j<=$#objsort;$j++) {
353: if ($k!=$j) {
354: @data1=split(/\:/,$objsort[$k]);
355: @data2=split(/\:/,$objsort[$j]);
356: my $dol=$#data1+1;
357: my $dtl=$#data2+1;
358: if ($dol+$dtl<1000) {
359: for ($kj=1;$kj<$dol;$kj++) {
360: if ($data1[$kj]==$data2[0]) {
361: for ($ij=1;$ij<$dtl;$ij++) {
362: $data1[$#data1+1]=$data2[$ij];
363: }
364: }
365: }
366: for ($kj=1;$kj<$dtl;$kj++) {
367: if ($data2[$kj]==$data1[0]) {
368: for ($ij=1;$ij<$dol;$ij++) {
369: $data2[$#data2+1]=$data1[$ij];
370: }
371: }
372: }
373: $objsort[$k]=join(':',@data1);
374: $objsort[$j]=join(':',@data2);
375: }
376: }
377: }
378: }
379: # ---------------------------------------------------------------- Now sort out
380:
381: @objsort=sort {
382: my @data1=split(/\:/,$a);
383: my @data2=split(/\:/,$b);
384: my $rvalue=0;
385: my $k;
386: for ($k=1;$k<=$#data1;$k++) {
387: if ($data1[$k]==$data2[0]) { $rvalue--; }
388: }
389: for ($k=1;$k<=$#data2;$k++) {
390: if ($data2[$k]==$data1[0]) { $rvalue++; }
391: }
392: if ($rvalue==0) { $rvalue=$#data2-$#data1; }
393: $rvalue;
394: } @objsort;
395:
396: my @outres=();
397: undef @outres;
398:
399: for ($k=0;$k<=$#objsort;$k++) {
400: $outres[$k]=$theseres[(split(/\:/,$objsort[$k]))[0]];
401: }
402: return @outres;
403: }
404:
405: # --------------------------------------------------------- Build up RAT screen
406: sub ratedt {
407: my ($r,$url)=@_;
408: my $frameset = '<frameset rows="1,70,*" border="0">';
409: if ($env{'environment.remote'} eq 'off') {
410: $frameset = '<frameset rows="1,250,*" border="0">';
411: }
412: $r->print(<<ENDDOCUMENT);
413:
414: <html>
415: <head>
416: <script language="JavaScript">
417: var flag=0;
418: </script>
419: </head>
420: $frameset
421: <frame name=server src="$url/loadonly/ratserver" noresize noscroll>
422: <frame name=code src="$url/loadonly/adveditmenu">
423: <frame name=mapout src="/adm/rat/map.html">
424: </frameset>
425: </html>
426:
427: ENDDOCUMENT
428: }
429:
430: # ---------------------------------------------------------------- Make buttons
431:
432: sub buttons {
433: my $adv=shift;
434: my $output='<form method=post>';
435: if ($adv==1) {
436: $output.='<input type=submit name=forceadv value="'.&mt('Edit').'">'.
437: &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');;
438: } else {
439: unless ($adv==2) {
440: $output.='<input type=submit name=forcesmp value="'.&mt('Simple Edit').'">'.
441: &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation');
442: }
443: $output.='<input type=submit name=forceadv value="'.&mt('Advanced Edit').'">'.
444: &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');
445: }
446: return $output.'</form><hr>';
447: }
448:
449: # ------------------------------------- Revive zombie idx or get unused number
450:
451: sub getresidx {
452: my $url=shift;
453: my $max=1+($#resources>$#zombies?$#resources:$#zombies);
454: unless ($url) { return $max; }
455: for (my $i=0; $i<=$#zombies; $i++) {
456: my ($title,$src,$ext,$type)=split(/\:/,$zombies[$i]);
457: if ($src eq $url) {
458: undef $zombies[$i];
459: return $i;
460: }
461: }
462: return $max;
463: }
464:
465: # ----------------------------------------------------------- Paste into target
466: # modifies @order, @resources
467:
468: sub pastetarget {
469: my ($after,@which)=@_;
470: my @insertorder=();
471: foreach (@which) {
472: if (defined($_)) {
473: my ($name,$url)=split(/\=/,$_);
474: $name=&Apache::lonnet::unescape($name);
475: $url=&Apache::lonnet::unescape($url);
476: if ($url) {
477: my $idx=&getresidx($url);
478: $insertorder[$#insertorder+1]=$idx;
479: my $ext='false';
480: if ($url=~/^http\:\/\//) { $ext='true'; }
481: $url=~s/\:/\:/g;
482: $name=~s/\:/\:/g;
483: $resources[$idx]=$name.':'.$url.':'.$ext.':normal:res';
484: }
485: }
486: }
487: my @oldorder=splice(@order,$after);
488: @order=(@order,@insertorder,@oldorder);
489: }
490:
491: # ------------------------------------------------ Get start and finish correct
492: # modifies @resources
493:
494: sub startfinish {
495: # Remove all start and finish
496: foreach (@order) {
497: my ($name,$url,$ext)=split(/\:/,$resources[$_]);
498: if ($url=~/http\&colon\:\/\//) { $ext='true'; }
499: $resources[$_]=$name.':'.$url.':'.$ext.':normal:res';
500: }
501: # Garbage collection
502: my $stillchange=1;
503: while (($#order>1) && ($stillchange)) {
504: $stillchange=0;
505: for (my $i=0;$i<=$#order;$i++) {
506: my ($name,$url,$ext)=split(/\:/,$resources[$order[$i]]);
507: unless ($url) {
508: # Take out empty resource
509: for (my $j=$i+1;$j<=$#order;$j++) {
510: $order[$j-1]=$order[$j];
511: }
512: $#order--;
513: $stillchange=1;
514: last;
515: }
516: }
517: }
518: # Put in a start resource
519: my ($name,$url,$ext)=split(/\:/,$resources[$order[0]]);
520: $resources[$order[0]]=$name.':'.$url.':'.$ext.':start:res';
521: # Make sure this has at least start and finish
522: if ($#order==0) {
523: $resources[&getresidx()]='::false';
524: $order[1]=$#resources;
525: }
526: # Make the last one a finish resource
527: ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]);
528: $resources[$order[$#order]]=$name.':'.$url.':'.$ext.':finish:res';
529: }
530:
531: # ------------------------------------------------------------------- Store map
532:
533: sub storemap {
534: my $realfn=shift;
535: my $fn=$realfn;
536: # unless this is forced to work from the original file, use a temporary file
537: # instead
538: unless (shift) {
539: $fn=$realfn.'.tmp';
540: unless (-e $fn) {
541: copy($realfn,$fn);
542: }
543: }
544: # store data either into tmp or real file
545: &startfinish();
546: my $output='graphdef<:>no';
547: my $k=1;
548: for (my $i=0; $i<=$#order; $i++) {
549: if (defined($resources[$order[$i]])) {
550: $output.='<&>objcont<:>'.$order[$i].'<:>'.$resources[$order[$i]];
551: }
552: if (defined($resparms[$order[$i]])) {
553: foreach (split('&&&',$resparms[$order[$i]])) {
554: if ($_) {
555: $output.='<&>objparms<:>'.$order[$i].'<:>'.$_;
556: }
557: }
558: }
559: if (defined($order[$i+1])) {
560: if (defined($resources[$order[$i+1]])) {
561: $output.='<&>objlinks<:>'.$k.'<:>'.
562: $order[$i].':'.$order[$i+1].':0';
563: $k++;
564: }
565: }
566: }
567: for (my $i=0; $i<=$#zombies; $i++) {
568: if (defined($zombies[$i])) {
569: $output.='<&>objcont<:>'.$i.'<:>'.$zombies[$i];
570: }
571: }
572: $output=~s/http\&colon\;\/\///g;
573: $env{'form.output'}=$output;
574: return
575: &Apache::lonratsrv::loadmap($fn,&Apache::lonratsrv::savemap($fn,''));
576: }
577:
578: # ------------------------------------------ Store and get parameters in global
579:
580: sub storeparameter {
581: my ($to,$name,$value,$ptype)=@_;
582: my $newentry='';
583: my $nametype='';
584: foreach (split('&&&',$resparms[$to])) {
585: my ($thistype,$thisname,$thisvalue)=split('___',$_);
586: if ($thisname) {
587: unless ($thisname eq $name) {
588: $newentry.=$_.'&&&';
589: } else {
590: $nametype=$thistype;
591: }
592: }
593: }
594: unless ($ptype) { $ptype=$nametype; }
595: unless ($ptype) { $ptype='string'; }
596: $newentry.=$ptype.'___'.$name.'___'.$value;
597: $resparms[$to]=$newentry;
598: }
599:
600: sub delparameter {
601: my ($to,$name)=@_;
602: my $newentry='';
603: my $nametype='';
604: foreach (split('&&&',$resparms[$to])) {
605: my ($thistype,$thisname,$thisvalue)=split('___',$_);
606: if ($thisname) {
607: unless ($thisname eq $name) {
608: $newentry.=$_.'&&&';
609: }
610: }
611: }
612: $resparms[$to]=$newentry;
613: }
614:
615: sub getparameter {
616: my ($to,$name)=@_;
617: my $value=undef;
618: my $ptype=undef;
619: foreach (split('&&&',$resparms[$to])) {
620: my ($thistype,$thisname,$thisvalue)=split('___',$_);
621: if ($thisname eq $name) {
622: $value=$thisvalue;
623: $ptype=$thistype;
624: }
625: }
626: return ($value,$ptype);
627: }
628:
629: # ----------------------------------------------------------------- Edit script
630: sub editscript {
631: my $mode=shift;
632: my $resurl=&Apache::loncommon::lastresurl();
633: return(<<ENDSCRIPT);
634: var srch;
635: var srchflag=-1; // 1 means currently open
636: // 0 means closed (but has been open)
637: // -1 means never yet opened/defined
638: var srchmode='';
639:
640: var idx;
641: var idxflag=-1; // 1 means currently open
642: // 0 means closed (but has been open)
643: // -1 means never yet opened/defined
644: var idxmode='';
645:
646: // ------------------------------------------------------ Clears indexer window
647: function idxclear() {
648: idx.document.clear();
649: }
650:
651: // ------------------------------------------------------- Clears search window
652: function srchclear() {
653: srch.document.clear();
654: }
655:
656: // ------------------------------------------------------ Closes indexer window
657: function idxclose() {
658: if (idx && !idx.closed) {
659: idxflag=0;
660: idx.close();
661: }
662: }
663:
664: // ------------------------------------------------------- Closes search window
665: function srchclose() {
666: if (srch && !srch.closed) {
667: srchflag=0;
668: srch.close();
669: }
670: }
671:
672: // -------------------------------------------------------- Open indexer window
673: function idxopen(mode) {
674: var options="scrollbars=1,resizable=1,menubar=0";
675: idxmode=mode;
676: idxflag=1;
677: idx=open("$resurl/?launch=1&mode=$mode&catalogmode="+mode,"idxout",options);
678: idx.focus();
679: }
680:
681: // --------------------------------------------------------- Open search window
682: function srchopen(mode) {
683: var options="scrollbars=1,resizable=1,menubar=0";
684: srchmode=mode;
685: srchflag=1;
686: srch=open("/adm/searchcat?launch=1&mode=$mode&catalogmode="+mode,"srchout",options);
687: srch.focus();
688: }
689: // ----------------------------------------------------- launch indexer browser
690: function groupsearch() {
691: srchcheck('groupsearch');
692: }
693:
694: function groupimport() {
695: idxcheck('groupimport');
696: }
697: // ------------------------------------------------------- Do srch status check
698: function srchcheck(mode) {
699: if (!srch || srch.closed || srchmode!=mode) {
700: srchopen(mode);
701: }
702: srch.focus();
703: }
704:
705: // -------------------------------------------------------- Do idx status check
706: function idxcheck(mode) {
707: if (!idx || idx.closed || idxmode!=mode) {
708: idxopen(mode);
709: }
710: idx.focus();
711: }
712:
713:
714: var editbrowser;
715: function openbrowser(formname,elementname,only,omit) {
716: var url = '$resurl/?';
717: if (editbrowser == null) {
718: url += 'launch=1&';
719: }
720: url += 'catalogmode=interactive&';
721: url += 'mode=edit&';
722: url += 'form=' + formname + '&';
723: if (only != null) {
724: url += 'only=' + only + '&';
725: }
726: if (omit != null) {
727: url += 'omit=' + omit + '&';
728: }
729: url += 'element=' + elementname + '';
730: var title = 'Browser';
731: var options = 'scrollbars=1,resizable=1,menubar=0';
732: options += ',width=700,height=600';
733: editbrowser = open(url,title,options,'1');
734: editbrowser.focus();
735: }
736: ENDSCRIPT
737: }
738: # ------------------------------------------------------- Simple edit processor
739:
740: sub smpedt {
741: my ($r,$url,$errtext)=@_;
742: my $buttons=&buttons(2);
743: my $tmpfn=&Apache::lonnet::filelocation('',$url).'.tmp';
744: my $targetmsg='';
745: if ($env{'form.save'}) {
746: copy($tmpfn,&Apache::lonnet::filelocation('',$url));
747: unlink($tmpfn);
748: my ($errtext,$fatal)=
749: &mapread(&Apache::lonnet::filelocation('',$url),'');
750: unless ($fatal) {
751: $targetmsg='<b>'.&mt('Saved.').'</b><br />';
752: } else {
753: $targetmsg='<b>'.&mt('An error occured while saving.').'</b><br />';
754: }
755: }
756: if ($env{'form.revert'}) {
757: $targetmsg='<b>'.&mt('Reverted.').'</b><br />';
758: unlink($tmpfn);
759: my ($errtext,$fatal)=
760: &mapread(&Apache::lonnet::filelocation('',$url),'');
761: }
762: if (-e $tmpfn) {
763: $targetmsg=
764: '<b><font color="red">'.&mt('You are working with an unsaved version of your map.').'</font></b><br>';
765: my ($errtext,$fatal)=&mapread($tmpfn,'');
766: }
767: # ---------------------------------------------------------- Process form input
768:
769: my @importselect=&Apache::loncommon::get_env_multiple('form.importsel');
770: my @targetselect=&Apache::loncommon::get_env_multiple('form.target');
771: # ============================================================ Process commands
772:
773: my $targetdetail=$env{'form.targetdetail'};
774: my $importdetail=$env{'form.curimpdetail'};
775:
776: # ---------------------------------------------------- Importing from groupsort
777: if (($env{'form.importdetail'}) && (!$env{'form.impfortarget'})) {
778:
779: $importdetail='';
780: my @curimport=split(/\&/,$env{'form.curimpdetail'});
781:
782: my $lastsel;
783:
784: if (defined($importselect[-1])) {
785: $lastsel=$importselect[-1];
786: } else {
787: $lastsel=$#curimport;
788: }
789:
790: for (my $i=0;$i<=$lastsel;$i++) {
791: my ($name,$url)=split(/\=/,$curimport[$i]);
792: if ($url) {
793: $importdetail.='&'.$name.'='.$url;
794: }
795: }
796:
797: $importdetail.='&'.$env{'form.importdetail'};
798:
799: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
800: my ($name,$url)=split(/\=/,$curimport[$i]);
801: if ($url) {
802: $importdetail.='&'.$name.'='.$url;
803: }
804: }
805: $importdetail=~s/\&+/\&/g;
806: $importdetail=~s/^\&//;
807:
808: # ------------------------------------------------------------------- Clear all
809: } elsif ($env{'form.clear'}) {
810: $importdetail='';
811: # ------------------------------------------------------------ Discard selected
812: } elsif ($env{'form.discard'}) {
813: $importdetail='';
814: my @curimport=split(/\&/,$env{'form.curimpdetail'});
815: foreach (@importselect) {
816: $curimport[$_]='';
817: }
818: for (my $i=0;$i<=$#curimport;$i++) {
819: my ($name,$url)=split(/\=/,$curimport[$i]);
820: if ($url) {
821: $importdetail.='&'.$name.'='.$url;
822: }
823: }
824: # --------------------------------------------------------- Loading another map
825: } elsif ($env{'form.loadmap'}) {
826: $importdetail='';
827: my @curimport=split(/\&/,$env{'form.curimpdetail'});
828:
829: my $lastsel;
830:
831: if (defined($importselect[-1])) {
832: $lastsel=$importselect[-1];
833: } else {
834: $lastsel=$#curimport;
835: }
836:
837: for (my $i=0;$i<=$lastsel;$i++) {
838: my ($name,$url)=split(/\=/,$curimport[$i]);
839: if ($url) {
840: $importdetail.='&'.$name.'='.$url;
841: }
842: }
843:
844: foreach (
845: &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
846: my ($name,$url)=split(/\:/,$_);
847: if ($url) {
848: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
849: &Apache::lonnet::escape($url);
850: }
851: }
852:
853: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
854: my ($name,$url)=split(/\=/,$curimport[$i]);
855: if ($url) {
856: $importdetail.='&'.$name.'='.$url;
857: }
858: }
859: $importdetail=~s/\&+/\&/g;
860: $importdetail=~s/^\&//;
861:
862: # ------------------------------------------------ Groupimport/search to target
863: } elsif ($env{'form.importdetail'}) {
864: my $lastsel;
865: if (defined($targetselect[-1])) {
866: $lastsel=$targetselect[-1];
867: } else {
868: $lastsel=$#order+1;
869: }
870: &pastetarget($lastsel,split(/\&/,$env{'form.importdetail'}));
871: &storemap(&Apache::lonnet::filelocation('',$url));
872: # ------------------------------------------------------------------------- Cut
873: } elsif (($env{'form.cut'}) || ($env{'form.copy'})) {
874: $importdetail='';
875: my @curimport=split(/\&/,$env{'form.curimpdetail'});
876:
877: my $lastsel;
878:
879: if (defined($importselect[-1])) {
880: $lastsel=$importselect[-1];
881: } else {
882: $lastsel=$#curimport;
883: }
884:
885: for (my $i=0;$i<=$lastsel;$i++) {
886: my ($name,$url)=split(/\=/,$curimport[$i]);
887: if ($url) {
888: $importdetail.='&'.$name.'='.$url;
889: }
890: }
891:
892: foreach (@targetselect) {
893: my ($name,$url)=split(/\:/,$resources[$order[$_-1]]);
894: if ($url) {
895: $importdetail.='&'.&Apache::lonnet::escape($name).'='.
896: &Apache::lonnet::escape($url);
897: }
898: }
899:
900: for (my $i=$lastsel+1;$i<=$#curimport;$i++) {
901: my ($name,$url)=split(/\=/,$curimport[$i]);
902: if ($url) {
903: $importdetail.='&'.$name.'='.$url;
904: }
905: }
906: $importdetail=~s/\&+/\&/g;
907: $importdetail=~s/^\&//;
908:
909: if ($env{'form.cut'}) {
910: my @neworder=();
911: for (my $i=0;$i<=$#order;$i++) {
912: my $include=1;
913: foreach (@targetselect) {
914: if ($_-1==$i) { $include=0; }
915: }
916: if ($include) { $neworder[$#neworder+1]=$order[$i]; }
917: }
918: @order=@neworder;
919: &storemap(&Apache::lonnet::filelocation('',$url));
920: }
921:
922: # ----------------------------------------------------------------------- Paste
923: } elsif ($env{'form.paste'}) {
924: my $lastsel;
925: if (defined($targetselect[-1])) {
926: $lastsel=$targetselect[-1];
927: } else {
928: $lastsel=$#order+1;
929: }
930: my @newsequence;
931: my @curimport=split(/\&/,$env{'form.curimpdetail'});
932: foreach (@importselect) {
933: $newsequence[$#newsequence+1]=$curimport[$_];
934: }
935: &pastetarget($lastsel,@newsequence);
936: &storemap(&Apache::lonnet::filelocation('',$url));
937: # -------------------------------------------------------------------- Move up
938: } elsif ($env{'form.moveup'}) {
939: foreach (sort @targetselect) {
940: if ($_-1>0) {
941: my $movethis=$order[$_-1];
942: $order[$_-1]=$order[$_-2];
943: $order[$_-2]=$movethis;
944: }
945: }
946: &storemap(&Apache::lonnet::filelocation('',$url));
947: # ------------------------------------------------------------------ Move down
948: } elsif ($env{'form.movedown'}) {
949: foreach (reverse sort @targetselect) {
950: if ($_-1<$#order) {
951: my $movethis=$order[$_-1];
952: $order[$_-1]=$order[$_];
953: $order[$_]=$movethis;
954: }
955: }
956: &storemap(&Apache::lonnet::filelocation('',$url));
957: # --------------------------------------------------------------------- Rename
958: } elsif ($env{'form.renameres'}) {
959: my $residx=$Apache::lonratedt::order[$env{'form.renameidx'}-1];
960: my ($name,@resrest)=split(/\:/,$Apache::lonratedt::resources[$residx]);
961: $name=$env{'form.renametitle'};
962: $name=~s/\:/\&colon\;/g;
963: $Apache::lonratedt::resources[$residx]=$name.':'.join(':',@resrest);
964: &storemap(&Apache::lonnet::filelocation('',$url));
965: }
966: # ------------------------------------------------------------ Assemble windows
967:
968: my $idx=-1;
969: $importdetail='&'.$importdetail;
970: $importdetail=~s/^\&+/\&/;
971: my $importwindow=
972: '<option value="-1"> ---- '.&mt('Import and Paste Area').' ---- </option>'.
973: join("\n",map {
974: $idx++;
975: if ($_) {
976: my ($name,$url)=split(/\=/,$_);
977: unless ($name) { $name=(split(/\//,$url))[-1]; }
978: unless ($name) { $name='EMPTY'; }
979: '<option value="'.$idx.'">'.&Apache::lonnet::unescape($name).
980: '</option>';
981: }
982: } split(/\&/,$importdetail));
983:
984: $idx=0;
985: $targetdetail='';
986: my $targetwindow=
987: '<option value="0"> ------- '.&mt('Target Edit Map').' ------- </option>'.
988: join("\n",map {
989: my ($name,$url)=split(/\:/,$resources[$_]);
990: unless ($name) { $name=(split(/\//,$url))[-1]; }
991: unless ($name) { $name='EMPTY'; }
992: $targetdetail.='&'.&Apache::lonnet::escape($name).'='.
993: &Apache::lonnet::escape($url);
994: $idx++;
995: $name=~s/\:/\:/g;
996: '<option value="'.$idx.'">'.$name.'</option>';
997: } @order);
998:
999: # ----------------------------------------------------- Start simple RAT screen
1000: my $editscript=&editscript('simple');
1001: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,
1002: ($env{'environment.remote'} ne 'off')).
1003: &Apache::loncommon::help_open_menu('','Sequence_Simple_Editor_Creation','Sequence_Simple_Editor_Creation','',6,'RAT');
1004: my %lt=&Apache::lonlocal::texthash(
1005: 'sa' => 'Save',
1006: 'nt' => 'New Title',
1007: 'se' => 'Search',
1008: 'im' => 'Import',
1009: 'vi' => 'View',
1010: 'lm' => 'Load Map',
1011: 'ds' => 'Discard Selected',
1012: 'ca' => 'Clear All',
1013: 'ta' => 'Temporary Assembly Workspace',
1014: 'rv' => 'Revert to Last Saved',
1015: 'sa' => 'Save',
1016: 'mu' => 'Move Up',
1017: 'md' => 'Move Down',
1018: 're' => 'Rename',
1019: 'as' => 'after selected',
1020: 'cs' => 'Cut selected',
1021: 'ps' => 'Copy selected',
1022: 'pas' => 'Paste after selected',
1023: );
1024: $r->print(<<ENDSMPHEAD);
1025: <html>
1026: <head>
1027: <script>
1028:
1029: $editscript
1030:
1031: function openview(entry) {
1032: var url=unescape((entry.split('='))[1]);
1033: var parts=new Array;
1034: parts=url.split(':');
1035: url=parts.join(':');
1036: if (url) { open(url,'cat'); }
1037: }
1038:
1039: function viewtarget() {
1040: openview((document.forms.simpleedit.targetdetail.value.split('&'))
1041: [document.forms.simpleedit.target.selectedIndex]);
1042: }
1043:
1044: function viewimport() {
1045: openview((document.forms.simpleedit.curimpdetail.value.split('&'))
1046: [document.forms.simpleedit.importsel.selectedIndex]);
1047: }
1048:
1049: function renametarget() {
1050: var selidx=document.forms.simpleedit.target.selectedIndex;
1051: var entry=(document.forms.simpleedit.targetdetail.value.split('&'))
1052: [selidx];
1053: var oldname=unescape((entry.split('='))[0]);
1054: var nameparts=oldname.split(':');
1055: oldname=unescape(nameparts.join(':'));
1056: nameparts=oldname.split('"');
1057: oldname=unescape(nameparts.join('"'));
1058: nameparts=oldname.split(''');
1059: oldname=unescape(nameparts.join("'"));
1060: newtitle=prompt('$lt{'nt'}',oldname);
1061: if (newtitle) {
1062: document.forms.simpleedit.renameres.value=1;
1063: document.forms.simpleedit.renameidx.value=selidx;
1064: document.forms.simpleedit.renametitle.value=newtitle;
1065: document.forms.simpleedit.submit();
1066: }
1067: }
1068:
1069: </script>
1070: </head>
1071: $bodytag
1072: $buttons
1073: <font color=red>$errtext</font>
1074: <form name=simpleedit method=post>
1075: <input type=hidden name=forcesmp value=1>
1076: <input type=hidden name=renameres value=0>
1077: <input type=hidden name=renametitle value=''>
1078: <input type=hidden name=renameidx value=0>
1079: <table>
1080: <tr><th width="40%">$lt{'ta'}</th>
1081: <th> </th>
1082: <th width="40%">File: $url</th></tr>
1083: <tr><td bgcolor="#FFFFCC">
1084: <input type=button onClick="javascript:groupsearch()" value="$lt{'se'}">
1085: <input type=button onClick="javascript:groupimport();" value="$lt{'im'}">
1086: $lt{'as'}
1087: <hr>
1088: <input type=text size=20 name=importmap>
1089: <input type=button
1090: onClick="javascript:openbrowser('simpleedit','importmap','sequence,page','')"
1091: value="Select Map"><input type=submit name=loadmap value="$lt{'lm'}"><hr>
1092: <input type=submit name="discard" value="$lt{'ds'}">
1093: <input type=submit name="clear" value="$lt{'ca'}">
1094: <input type=button onClick="javascript:viewimport()" value="$lt{'vi'}">
1095:
1096: </td><td> </td><td bgcolor="#FFFFCC">
1097:
1098: <input type=button onClick=
1099: "javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}">
1100: <input type=button onClick=
1101: "javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}">
1102: $lt{'as'}
1103: <hr>
1104: <input type=submit name="moveup" value="$lt{'mu'}">
1105: <input type=submit name="movedown" value="$lt{'md'}">
1106: <input type=button onClick="javascript:renametarget()" value="$lt{'re'}">
1107: <hr>$targetmsg
1108: <input type=submit name="revert" value="$lt{'rv'}">
1109: <input type=submit name="save" value="$lt{'sa'}">
1110: <input type=button onClick="javascript:viewtarget()" value="$lt{'vi'}">
1111: </td></tr>
1112:
1113: <tr><td bgcolor="#FFFFCC"><select name="importsel" size=10 multiple>
1114: $importwindow
1115: </select>
1116: </td>
1117: <td bgcolor="#FFFFAA" align="center">
1118: $lt{'cs'}<br>
1119: <input type=submit name=cut value='<<<'><p>
1120: <hr>
1121: $lt{'ps'}<br>
1122: <input type=submit name=copy value='<--'><p>
1123: <hr>
1124: $lt{'pas'}<br>
1125: <input type=submit name=paste value='-->'>
1126: </td>
1127: <td bgcolor="#FFFFCC"><select name="target" size=10 multiple>
1128: $targetwindow
1129: </select>
1130: </table>
1131: <input type=hidden name=importdetail value="">
1132: <input type=hidden name=curimpdetail value="$importdetail">
1133: <input type=hidden name=targetdetail value="$targetdetail">
1134: <input type=hidden name=impfortarget value="0">
1135: </form>
1136: </body></html>
1137: ENDSMPHEAD
1138: }
1139:
1140: # ----------------------------------------------------------------- No such dir
1141: sub nodir {
1142: my ($r,$dir)=@_;
1143: $dir=~s/^\/home\/\w+\/public\_html//;
1144: $r->print(<<ENDNODIR);
1145: <html>
1146: <body bgcolor='#FFFFFF'>
1147: <h1>No such directory: $dir</h1>
1148: </body>
1149: </html>
1150: ENDNODIR
1151: }
1152:
1153: # ---------------------------------------------------------------- View Handler
1154:
1155: sub viewmap {
1156: my ($r,$url,$adv,$errtext)=@_;
1157: $r->print('<html>'.
1158: &Apache::loncommon::bodytag('Edit Content of a Map').
1159: &Apache::loncommon::help_open_menu('','','','',6,'RAT').
1160: &buttons($adv));
1161: if ($errtext) {
1162: $r->print($errtext.'<hr />');
1163: }
1164: my $idx=0;
1165: $r->print('<h1>'.$url.'</h1>');
1166: if ($adv) {
1167: $r->print('<p><b><font color="red">'.&mt('Map contents are not shown in order.').'</font></b></p><br />');
1168: }
1169: $r->print( '<table border="0" cellspacing="2" cellpadding="4">'.
1170: '<tr bgcolor="#DDDDDD"><th>'.&mt('Type').'</th>'.
1171: '<th>'.&mt('Title in map').'</th>'.
1172: '<th>'.&mt('Filename of resource').'</th>'.
1173: '<th>'.&mt('Link to published resource').'</th>'.
1174: '<th>'.&mt('Link to resource in Construction Space').'</th>'.
1175: '</tr>');
1176: my @backgroundColors = ("#FFFFFF", "#F6F6F6");
1177: foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) {
1178: if (defined($_)) {
1179: $idx++;
1180: my ($title,$url,$cond)=split(/\:/,$_);
1181: if ($cond eq 'cond') { next; }
1182: $title=~s/\&colon\;/\:/g;
1183: $url=~s/\&colon\;/\:/g;
1184: unless ($title) { $title=(split(/\//,$url))[-1] };
1185: unless ($title) { $title='<i>'.&mt('Empty').'</i>'; }
1186: my $resurl = &Apache::lonratsrv::qtescape($url);
1187: my $resfilepath = $Apache::lonnet::perlvar{'lonDocRoot'}.$resurl;
1188: my $filename;
1189: if ($resurl =~ m#/([^/]+)$#) {
1190: $filename = $1;
1191: }
1192: my $cstrurl = $resurl;
1193: $cstrurl =~ s#^/res/[^/]+/([^/]+)/#/priv/$1/#;
1194: my $bgcol = $idx%2;
1195: $r->print('<tr bgcolor='.$backgroundColors[$bgcol].'><td>'.
1196: '<img src="'.&Apache::loncommon::icon($resfilepath).
1197: '" /></td><td>'.&Apache::lonratsrv::qtescape($title).
1198: '</td><td>'.$filename.'</td><td>');
1199: if ($url) {
1200: $r->print('<a href="'.$resurl.'">'.&mt('Resource space').'</a>');
1201: }
1202: $r->print('</td><td>');
1203: if ($url) {
1204: $r->print('<a href="'.$cstrurl.'">'.
1205: &mt('Construction space').'</a>');
1206: }
1207: $r->print('</td></tr>'."\n");
1208: }
1209: }
1210: $r->print('</table>');
1211: $r->print('</body></html>');
1212: }
1213:
1214: # ================================================================ Main Handler
1215:
1216: sub handler {
1217: my $r=shift;
1218: &Apache::loncommon::content_type($r,'text/html');
1219: $r->send_http_header;
1220:
1221: return OK if $r->header_only;
1222: my $target = $env{'form.grade_target'};
1223: if ($target eq 'meta') {
1224: &Apache::loncommon::content_type($r,'text/html');
1225: $r->send_http_header;
1226: return OK;
1227: }
1228:
1229: my $url=$r->uri;
1230: my $fn=&Apache::lonnet::filelocation('',$url);
1231:
1232: my ($dir)=($fn=~/^(.+)\/[^\/]+$/);
1233: unless (-e $dir) {
1234: &nodir($r,$dir);
1235: return OK;
1236: }
1237:
1238: # ------------------------------------------- Determine which tools can be used
1239: my $adv=0;
1240:
1241: unless ($env{'form.forcesmp'}) {
1242: if ($env{'form.forceadv'}) {
1243: $adv=1;
1244: } elsif (my $fh=Apache::File->new($fn)) {
1245: my $allmap=join('',<$fh>);
1246: $adv=($allmap=~/\<map[^\>]+mode\s*\=\s*(\'|\")rat/is);
1247: }
1248: }
1249:
1250: my $errtext='';
1251: my $fatal=0;
1252:
1253: # -------------------------------------------------------------------- Load map
1254: ($errtext,$fatal)=&mapread($fn,$errtext);
1255:
1256: if ($fatal==1) { $adv=1; }
1257:
1258: # ----------------------------------- adv==1 now means "graphical MUST be used"
1259:
1260: if ($env{'form.forceadv'}) {
1261: &ratedt($r,$url);
1262: } elsif ($env{'form.forcesmp'}) {
1263: &smpedt($r,$url,$errtext);
1264: } else {
1265: &viewmap($r,$url,$adv,$errtext);
1266: }
1267: return OK;
1268: }
1269:
1270: 1;
1271: __END__
1272:
1273:
1274:
1275:
1276:
1277:
1278:
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