1: # The LearningOnline Network
2: #
3: # $Id: loncourserespicker.pm,v 1.11 2014/01/08 17:18:11 bisitz Exp $
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27:
28: =pod
29:
30: =head1 NAME
31:
32: loncourserespicker - Utilities to choose folders and resources in a course.
33:
34: =head1 SYNOPSIS
35:
36: loncourserespicker provides an interface for selecting which folders and/or
37: resources are to be either:
38:
39: (a) exported to an IMS Content Package
40: (b) subject to access blocking for the duriation of an exam/quiz.
41: (c) dumped to an Authoring Space
42:
43: =head1 DESCRIPTION
44:
45: This module provides routines to generate a hierarchical display of folders
46: and resources in a course which can be selected for specific actions.
47:
48: The choice of items is copied back to the main window from which the pop-up
49: window used to display the Course Contents was opened.
50:
51: =head1 OVERVIEW
52:
53: The main subroutine: &create_picker() will display the hierarchy of folders,
54: sub-folders, and resources in the Main Content area. Items can be selected
55: using checkboxes, and/or a "Check All" button. Selection of a folder
56: causes the contents of the folder to also be selected automatically. The
57: propagation of check status is recursive into sub-folders. Likewise, if an
58: item deep in a nested set of folders and sub-folders is unchecked, the
59: uncheck will propagate up through the hierarchy causing any folders at
60: a higher level to become unchecked.
61:
62: There is a submit button, which will be named differently according to the
63: context in which resource/folder selection is being made.
64:
65: The three contexts currently supported are: IMS export, selection of
66: content to be subject to access restructions for the duration of an
67: exam, and selection of items for dumping to an Authoring Space.
68:
69: =head1 INTERNAL SUBROUTINES
70:
71: =item &create_picker()
72:
73: Created HTML mark up to display contents of course with checkboxes to
74: select items. Checking a folder causes recursive checking of items
75: within the folder. Unchecking a resource causing unchecking of folders
76: containing the item back up to the top level.
77:
78: Inputs: 9.
79: - $navmap -- Reference to LON-CAPA navmap object
80: (encapsulates information about resources in the course).
81:
82: - $context -- Context in which course resource selection is being made.
83: Currently imsexport and examblock are supported.
84:
85: - $formname -- Name of the form in the window from which the pop-up
86: used to select course items was launched.
87:
88: - $crstype -- Course or Community
89:
90: - $blockedmaps -- Reference to hash of previously selected maps
91: (e.g., for a live exam block).
92:
93: - $blockedresources -- Reference to hash of resources selected
94: previously (e.g., for an exam block).
95:
96: - $block -- An internal ID (integer) used to track which exam
97: block currently being configured.
98:
99: - $preamble -- HTML form elements used to select Authoring Space
100: if more than one available, and also set name of 'Folder
101: in Authoring Space' where content will be dumped, when
102: context is 'dumpdocs'.
103:
104: - $numhome -- number of possible Authoring Spaces where content could
105: be dumped when context is 'dumpdocs'.
106:
107: - $uploadedfiles -- Reference to hash: keys are paths to files in
108: /home/httpd/lonUsers/$cdom/$1/$2/$3/$cnum/userfiles.
109:
110:
111: Output: $output is the HTML mark-up for display/selection of content
112: items in the pop-up window.
113:
114: =item &respicker_javascript()
115:
116: Creates javascript functions for checking/unchecking all items, and
117: for recursive checking triggered by checking a folder, or recursive
118: (upeards) unchecking of an item within a folder.
119:
120: Inputs: 7.
121: - $startcount -- Starting offset of form element numbering for items
122:
123: - $numcount -- Total numer of folders and resources in course.
124:
125: - $context -- Context in which resources are being displayed
126: (imsexport, examblock or dumpdocs).
127:
128: - $formname -- Name of form.
129:
130: - $children -- Reference to hash of items contained within a folder.
131:
132: - $hierarchy -- Reference to hierarchy of folders containing an item.
133:
134: - $checked_maps -- Reference to array of folders currently checked.
135:
136: Output: 1. Javascript (within <script></script> tags.
137:
138:
139: =item &get_navmap_object()
140:
141: Instantiates a navmaps object, and generates an error message if
142: no object instantiated.
143:
144: Inputs: 2.
145: - $crstype -- Container type: Course or Community
146:
147: - $context -- Context: imsexport, examblock or dumpdocs
148:
149:
150: =item &clean()
151:
152: Takes incoming title and replaces non-alphanumeric characters with underscore,
153: so title can be used as suggested file name (with appended extension) for file
154: copied from course to Authoring Space.
155:
156:
157: =item &enumerate_course_contents()
158:
159: Create hashes of maps (for folders/pages) and symbs (for resources) in
160: a course, where keys are numbers (starting with 1) and values are
161: map url, or symb, for an iteration through the course, as seen by
162: a Course Coordinator. Used to generate numerical IDs to facilitate
163: (a) storage of lists of maps or resources to be blocked during an exam,
164: (b) processing selected form element during dumping of selected course
165: content to Authoring Space.
166:
167: Inputs: 7
168:
169: $navmap - navmaps object
170:
171: $map_url - reference to hash to contain URLs of maps in course
172:
173: $resource_symb - reference to hash to contain symbs for
174: resources in course
175:
176: $title_ref - reference to hash containing titles for items in
177: course
178:
179: $context - examblock or dumpdocs
180:
181: $cdom - course's domain
182:
183: $cnum - courseID
184:
185: Outputs: None
186:
187: Side Effects: $map_url and $resource_symb hashrefs are populated.
188:
189:
190: =over
191:
192: =back
193:
194: =cut
195:
196:
197: package Apache::loncourserespicker;
198:
199: use strict;
200: use Apache::lonnet;
201: use Apache::loncommon;
202: use Apache::lonhtmlcommon;
203: use Apache::lonnavmaps;
204: use Apache::londocs;
205: use Apache::lonlocal;
206: use LONCAPA qw(:DEFAULT :match);
207:
208: sub create_picker {
209: my ($navmap,$context,$formname,$crstype,$blockedmaps,$blockedresources,$block,$preamble,$numhome,$uploadedfiles) = @_;
210: return unless (ref($navmap));
211: my ($it,$output,$numdisc,%maps,%resources,%discussiontime,%currmaps,%currresources,%files);
212: $it = $navmap->getIterator(undef,undef,undef,1,undef,undef);
213: if (ref($blockedmaps) eq 'HASH') {
214: %currmaps = %{$blockedmaps};
215: }
216: if (ref($blockedresources) eq 'HASH') {
217: %currresources = %{$blockedresources};
218: } elsif (ref($uploadedfiles) eq 'HASH') {
219: %files = %{$uploadedfiles};
220: }
221: my @checked_maps;
222: my $curRes;
223: my $numprobs = 0;
224: my $depth = 0;
225: my $count = 0;
226: my $boards = 0;
227: my $startcount = 1;
228: my %parent = ();
229: my %children = ();
230: my %hierarchy = ();
231: my $location=&Apache::loncommon::lonhttpdurl("/adm/lonIcons");
232: my $whitespace =
233: '<img src="'.$location.'/whitespace_21.gif" class="LC_docs_spacer" alt="" />';
234:
235: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
236: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
237: my $crsprefix = &propath($cdom,$cnum).'/userfiles/';
238:
239: my ($info,$display,$onsubmit,$togglebuttons);
240: if ($context eq 'examblock') {
241: my $maps_elem = 'docs_maps_'.$block;
242: my $res_elem = 'docs_resources_'.$block;
243: $onsubmit = ' onsubmit="return writeToOpener('."'$maps_elem','$res_elem'".');"';
244: $info = &mt('Items in '.lc($crstype).' for which access will be blocked.');
245: }
246: if ($context eq 'dumpdocs') {
247: $info = '<span class="LC_fontsize_medium">'.
248: &mt('Choose the uploaded course items and templated pages/problems to be copied to Authoring Space.').
249: '</span><br /><br />';
250: $startcount = 3 + $numhome;
251: $onsubmit = ' onsubmit="return checkUnique(document.'.$formname.',document.'.$formname.'.archive);"';
252: } elsif ($context eq 'imsexport') {
253: $info = &mt('Choose which items you wish to export from your '.$crstype.'.');
254: $startcount = 5;
255: }
256: $togglebuttons = '<input type="button" value="'.&mt('check all').'" '.
257: 'onclick="javascript:checkAll(document.'.$formname.'.archive)" />'.
258: ' <input type="button" value="'.&mt('uncheck all').'"'.
259: ' onclick="javascript:uncheckAll(document.'.$formname.'.archive)" />';
260: $display = '<form name="'.$formname.'" action="" method="post"'.$onsubmit.'>'."\n";
261: if ($context eq 'imsexport') {
262: $display .= $info.
263: '<div class="LC_columnSection">'."\n".
264: '<fieldset>'.
265: '<legend>'.&mt('Content items').'</legend>'."\n".
266: $togglebuttons.
267: '</fieldset>';
268: %discussiontime = &Apache::lonnet::dump('discussiontimes',$cdom,$cnum);
269: $numdisc = keys(%discussiontime);
270: if ($numdisc > 0) {
271: $display .=
272: '<fieldset>'.
273: '<legend>'.&mt('Discussion posts').'</legend>'.
274: '<input type="button" value="'.&mt('check all').'"'.
275: ' onclick="javascript:checkAll(document.'.$formname.'.discussion)" />'.
276: ' <input type="button" value="'.&mt('uncheck all').'"'.
277: ' onclick="javascript:uncheckAll(document.'.$formname.'.discussion)" />'.
278: '</fieldset>';
279: }
280: $display .= '</div>';
281: } elsif ($context eq 'examblock') {
282: $display .= $info.$togglebuttons;
283: } elsif ($context eq 'dumpdocs') {
284: $display .= $preamble.
285: '<div class="LC_left_float">'.
286: '<fieldset>'.
287: '<legend>'.&mt('Content to copy').(' 'x4).$togglebuttons.'</legend>'.
288: $info;
289: }
290: my $lastcontainer = $startcount;
291: $display .= &Apache::loncommon::start_data_table()
292: .&Apache::loncommon::start_data_table_header_row();
293: if ($context eq 'imsexport') {
294: $display .= '<th>'.&mt('Export content item?').'</th>';
295: if ($numdisc > 0) {
296: $display .= '<th>'.&mt('Export discussion posts?').'</th>';
297: }
298: } elsif ($context eq 'examblock') {
299: $display .= '<th>'.&mt('Access blocked?').'</th>';
300: } elsif ($context eq 'dumpdocs') {
301: $display .= '<th>'.&mt('Copy?').'</th>'.
302: '<th>'.&mt("Title in $crstype").
303: '<th>'.&mt('Internal Identifier').'</th>'.
304: '<th>'.&mt('Save as ...').'</th>';
305: }
306: $display .= &Apache::loncommon::end_data_table_header_row();
307: while ($curRes = $it->next()) {
308: if ($curRes == $it->BEGIN_MAP()) {
309: $depth++;
310: $parent{$depth} = $lastcontainer;
311: }
312: if ($curRes == $it->END_MAP()) {
313: $depth--;
314: $lastcontainer = $parent{$depth};
315: }
316: if (ref($curRes)) {
317: my $symb = $curRes->symb();
318: my $ressymb = $symb;
319: if ($context eq 'dumpdocs') {
320: next unless (($curRes->src() =~ m{^\Q/uploaded/$cdom/$cnum/\E(docs|supplemental|simplepage)}) ||
321: ($curRes->src() =~ m{^\Q/uploaded/$cdom/$cnum/\E(default|supplemental)_\d+\.(sequence|page)}) ||
322: ($curRes->src() eq '/res/lib/templates/simpleproblem.problem') ||
323: ($curRes->src() =~ m{^/adm/$match_domain/$match_username/\d+/smppg}));
324: } elsif ($ressymb =~ m|adm/($match_domain)/($match_username)/(\d+)/bulletinboard$|) {
325: unless ($ressymb =~ m|adm/wrapper/adm|) {
326: $ressymb = 'bulletin___'.$3.'___adm/wrapper/adm/'.$1.'/'.$2.'/'.$3.'/bulletinboard';
327: }
328: }
329: $count ++;
330: my $currelem;
331: if ($context eq 'imsexport') {
332: $currelem = $count+$boards+$startcount;
333: } else {
334: $currelem = $count+$startcount;
335: }
336: $display .= &Apache::loncommon::start_data_table_row().
337: '<td>'."\n".
338: '<input type="checkbox" name="archive" value="'.$count.'" ';
339: if (($curRes->is_sequence()) || ($curRes->is_page())) {
340: $lastcontainer = $currelem;
341: $display .= 'onclick="javascript:checkFolder(document.'.$formname.','."'$currelem'".')" ';
342: my $mapurl = (&Apache::lonnet::decode_symb($symb))[2];
343: if ($currmaps{$mapurl}) {
344: $display .= 'checked="checked"';
345: push(@checked_maps,$currelem);
346: }
347: } else {
348: if ($curRes->is_problem()) {
349: $numprobs ++;
350: }
351: $display .= 'onclick="javascript:checkResource(document.'.$formname.','."'$currelem'".')" ';
352: if ($currresources{$symb}) {
353: $display .= 'checked="checked"';
354: }
355: }
356: $display .= ' />'."\n";
357: if ($context eq 'dumpdocs') {
358: $display .= '</td><td valign="top">';
359: }
360: for (my $i=0; $i<$depth; $i++) {
361: $display .= "$whitespace\n";
362: }
363: my $icon = 'src="'.$location.'/unknown.gif" alt=""';
364: if ($curRes->is_sequence()) {
365: $icon = 'src="'.$location.'/navmap.folder.open.gif" alt="'.&mt('Folder').'"';
366: } elsif ($curRes->is_page()) {
367: $icon = 'src="'.$location.'/navmap.page.open.gif" alt="'.&mt('Composite Page').'"';
368: } elsif ($curRes->is_problem()) {
369: $icon = 'src="'.$location.'/problem.gif" alt="'.&mt('Problem').'"';
370: } elsif ($curRes->is_task()) {
371: $icon = 'src="'.$location.'/task.gif" alt="'.&mt('Task').'"';
372: } elsif ($curRes->src ne '') {
373: $icon = 'src="'.&Apache::loncommon::icon($curRes->src).'" alt=""';
374: }
375: $display .= '<img '.$icon.' /> '."\n";
376: $children{$parent{$depth}} .= $currelem.':';
377: if ($context eq 'examblock') {
378: if ($parent{$depth} > 1) {
379: if ($hierarchy{$parent{$depth}}) {
380: $hierarchy{$currelem} = $hierarchy{$parent{$depth}}.",'$parent{$depth}'";
381: } else {
382: $hierarchy{$currelem} = "'$parent{$depth}'";
383: }
384: }
385: }
386: $display .= ' '.$curRes->title().$whitespace.'</td>'."\n";
387:
388: if ($context eq 'imsexport') {
389: # Existing discussion posts?
390: if ($discussiontime{$ressymb} > 0) {
391: $boards ++;
392: $display .= '<td align="right">'
393: .'<input type="checkbox" name="discussion" value="'.$count.'" />'
394: .'</td>'."\n";
395: } elsif ($numdisc > 0) {
396: $display .= '<td> </td>'."\n";
397: }
398: } elsif ($context eq 'dumpdocs') {
399: my $src = $curRes->src();
400: my ($filepath,$title);
401: if ($src =~ m{^\Q/uploaded/$cdom/$cnum/\E}) {
402: $filepath = &Apache::lonnet::filelocation('',$src);
403: $filepath =~ s/\Q$crsprefix\E//;
404: if ($curRes->is_map()) {
405: $title = $files{$filepath};
406: } else {
407: $filepath =~ s{docs/}{};
408: $title = $filepath;
409: $title =~ s{^(default|\d+)/\d*/?}{};
410: }
411: } else {
412: $title = $curRes->title();
413: $title =~ s{/}{_}g;
414: $title = &clean($title);
415: if ($src eq '/res/lib/templates/simpleproblem.problem') {
416: my ($map,$id,$res) = &Apache::lonnet::decode_symb($symb);
417: $map =~ s{^uploaded/$cdom/$cnum/}{};
418: $filepath = $map.'_'.$id;
419: $title .= '.problem';
420: } elsif ($src =~ m{^/adm/$match_domain/$match_username/(\d+)/smppg}) {
421: $filepath = 'smppage_'.$1.'.db';
422: $title .= '.html';
423: }
424: }
425: $display .= '<td>'.$filepath.'</td>'.
426: '<td><input type="text" size="40" name="namefor_'.$count.'" id="namefor_'.$count.'" value="'.$title.'" /></td>'."\n";
427: }
428: $display .= &Apache::loncommon::end_data_table_row();
429: }
430: }
431: $display .= &Apache::loncommon::end_data_table();
432: if ($context eq 'imsexport') {
433: if ($numprobs > 0) {
434: $display .= '<p><span class="LC_nobreak">'.
435: &mt('Export format for LON-CAPA problems:').
436: '<label><input type="radio" name="format" value="xml" checked="checked" />'.
437: ' '.&mt('XML').'</label>'.(' ' x3).
438: '<label><input type="radio" name="format" value="html" />'.
439: ' '.&mt('HTML').'</label>'.(' ' x3).
440: '<label><input type="radio" name="format" value="plaintext" />'.
441: ' '.&mt('Text').'</label></span></p>';
442: }
443: }
444: my $numcount;
445: if ($context eq 'imsexport') {
446: $display .=
447: '<p>'.
448: '<input type="hidden" name="finishexport" value="1" />'.
449: '<input type="submit" name="exportcourse" value="'.
450: &mt('Export').'" /></p>';
451: $numcount = $count + $boards + $startcount;
452: } elsif ($context eq 'examblock') {
453: $display .=
454: '<p>'.
455: '<input type="submit" name="resourceblocks" value="'.
456: &mt('Copy Choices to Main Window').'" /></p>';
457: $numcount = $count + $startcount;
458: } elsif ($context eq 'dumpdocs') {
459: $display .= '</fieldset>'.
460: '</div><div style="padding:0;clear:both;margin:0;border:0"></div>'.
461: '<div>'.
462: '<input type="submit" name="dumpcourse" value="'.&mt("Copy $crstype Content").'" />'.
463: '</div>';
464: $numcount = $count + $startcount;
465: }
466: $display .= '</form>';
467: my $scripttag =
468: &respicker_javascript($startcount,$numcount,$context,$formname,\%children,
469: \%hierarchy,\@checked_maps,$numhome);
470: if ($context eq 'dumpdocs') {
471: return $scripttag.$display;
472: }
473: my ($title,$crumbs,$args);
474: if ($context eq 'imsexport') {
475: $title = 'Export '.$crstype.' to IMS Package';
476: } elsif ($context eq 'examblock') {
477: $title = 'Resources with Access blocked';
478: $args = {'only_body' => 1,
479: 'add_entries' => { onload => 'javascript:recurseFolders();' },
480: };
481: }
482: $output = &Apache::loncommon::start_page($title,$scripttag,$args);
483: if ($context eq 'imsexport') {
484: $output .= &Apache::lonhtmlcommon::breadcrumbs('IMS Export').
485: &Apache::londocs::startContentScreen('tools');
486: } elsif ($context eq 'dumpdocs') {
487: $output .= &Apache::lonhtmlcommon::breadcrumbs('Copying to Authoring Space').
488: &Apache::londocs::startContentScreen('tools');
489: }
490: $output .= $display;
491: if ($context eq 'examblock') {
492: $output .= &Apache::loncommon::end_page();
493: } elsif ($context eq 'imsexport') {
494: $output .= &Apache::londocs::endContentScreen();
495: }
496: return $output;
497: }
498:
499: sub respicker_javascript {
500: my ($startcount,$numitems,$context,$formname,$children,$hierarchy,
501: $checked_maps,$numhome) = @_;
502: return unless ((ref($children) eq 'HASH') && (ref($hierarchy) eq 'HASH')
503: && (ref($checked_maps) eq 'ARRAY'));
504: my ($elem,$nested,$nameforelem);
505: if ($context eq 'dumpdocs') {
506: $elem='((parseInt(item)-'.$startcount.')*2)+'.$startcount;
507: $nested='((parseInt(nesting[item][i])-'.$startcount.')*2)+'.$startcount;
508: $nameforelem=$elem+1;
509: } else {
510: $elem='parseInt(item)';
511: $nested='parseInt(nesting[item][i])';
512: }
513: my $scripttag = <<"START";
514: <script type="text/javascript">
515: // <![CDATA[
516: function checkAll(field) {
517: if (field.length > 0) {
518: for (i = 0; i < field.length; i++) {
519: field[i].checked = true ;
520: }
521: } else {
522: field.checked = true
523: }
524: }
525:
526: function uncheckAll(field) {
527: if (field.length > 0) {
528: for (i = 0; i < field.length; i++) {
529: field[i].checked = false;
530: }
531: } else {
532: field.checked = false;
533: }
534: }
535:
536: function checkFolder(form,item) {
537: var elem = $elem;
538: if (form.elements[elem].checked == true) {
539: containerCheck(form,item);
540: } else {
541: containerUncheck(form,item);
542: }
543: }
544:
545: function checkResource(form,item) {
546: var elem = $elem;
547: if (form.elements[elem].checked == false) {
548: containerUncheck(form,item);
549: }
550: }
551:
552: numitems = $numitems;
553: var parents = new Array(numitems);
554: var nesting = new Array(numitems);
555: var initial = new Array();
556: for (var i=$startcount; i<numitems; i++) {
557: parents[i] = new Array();
558: nesting[i] = new Array();
559: }
560:
561: START
562:
563: foreach my $container (sort { $a <=> $b } (keys(%{$children}))) {
564: my @contents = split(/:/,$children->{$container});
565: for (my $i=0; $i<@contents; $i ++) {
566: $scripttag .= 'parents['.$container.']['.$i.'] = '.$contents[$i]."\n";
567: }
568: }
569:
570: if ($context eq 'examblock') {
571: foreach my $item (sort { $a <=> $b } (keys(%{$hierarchy}))) {
572: $scripttag .= "nesting[$item] = new Array($hierarchy->{$item});\n";
573: }
574:
575: my @sorted_maps = sort { $a <=> $b } (@{$checked_maps});
576: for (my $i=0; $i<@sorted_maps; $i++) {
577: $scripttag .= "initial[$i] = '$sorted_maps[$i]'\n";
578: }
579: $scripttag .= <<"EXTRA";
580:
581: function recurseFolders() {
582: if (initial.length > 0) {
583: for (var i=0; i<initial.length; i++) {
584: containerCheck(document.$formname,initial[i]);
585: }
586: }
587: return;
588: }
589:
590: EXTRA
591: } elsif ($context eq 'dumpdocs') {
592: my $blankmsg = &mt('An item selected has no filename set in the "Save as ..." column.');
593: my $dupmsg = &mt('Items selected for copying need unique filenames in the "Save as ..." column.');
594: my $homemsg = &mt('An Authoring Space needs to be selected.');
595: $scripttag .= <<"EXTRA";
596:
597: function checkUnique(form,field) {
598: var duplicate = 0;
599: var blank = 0;
600: var numhome = '$numhome';
601: if (field.length > 0) {
602: for (i=0; i<field.length; i++) {
603: if (field[i].checked) {
604: var item = field[i].value;
605: var namefor = document.getElementById('namefor_'+item);
606: if (namefor) {
607: var possval = namefor.value;
608: if (!possval) {
609: blank = item;
610: break;
611: }
612: for (j=i+1; j<field.length; j++) {
613: if (field[j].checked) {
614: var curritem = field[j].value;
615: var currnamefor = document.getElementById('namefor_'+curritem);
616: if (currnamefor) {
617: var currval = currnamefor.value;
618: if (currval == possval) {
619: duplicate = curritem;
620: break;
621: }
622: }
623: }
624: }
625: if (duplicate) {
626: break;
627: }
628: }
629: }
630: }
631: }
632: if (blank) {
633: alert('$blankmsg');
634: return false;
635: }
636: if (duplicate) {
637: alert('$dupmsg');
638: return false;
639: }
640: if (numhome > 1) {
641: if (!form.authorspace.options[form.authorspace.selectedIndex].value) {
642: alert('$homemsg');
643: return false;
644: }
645: }
646: return true;
647: }
648:
649: EXTRA
650:
651: }
652:
653: $scripttag .= <<"END";
654:
655: function containerCheck(form,item) {
656: var elem = $elem;
657: form.elements[elem].checked = true;
658: if(Object.prototype.toString.call(parents[item]) === '[object Array]') {
659: if (parents[item].length > 0) {
660: for (var j=0; j<parents[item].length; j++) {
661: containerCheck(form,parents[item][j]);
662: }
663: }
664: }
665: }
666:
667: function containerUncheck(form,item) {
668: if(Object.prototype.toString.call(nesting[item]) === '[object Array]') {
669: if (nesting[item].length > 0) {
670: for (var i=0; i<nesting[item].length; i++) {
671: var nested = $nested;
672: }
673: }
674: }
675: return;
676: }
677:
678: END
679:
680: if ($context eq 'examblock') {
681: $scripttag .= <<ENDEX;
682: function writeToOpener(maps,resources) {
683: var checkedmaps = '';
684: var checkedresources = '';
685: for (var i=0; i<document.$formname.archive.length; i++) {
686: if (document.$formname.archive[i].checked) {
687: var isResource = 1;
688: var include = 1;
689: var elemnum = i+1+$startcount;
690: if (Object.prototype.toString.call(parents[elemnum]) === '[object Array]') {
691: if (parents[elemnum].length > 0) {
692: isResource = 0;
693: }
694: }
695: if (isResource == 1) {
696: if (nesting[elemnum].length > 0) {
697: var lastelem = nesting[elemnum].length-1;
698: if (document.$formname.elements[nesting[elemnum][lastelem]].checked) {
699: include = 0;
700: }
701: }
702: }
703: if (include == 1) {
704: if (isResource == 1) {
705: checkedresources += document.$formname.archive[i].value+',';
706: } else {
707: checkedmaps += document.$formname.archive[i].value+',';
708: }
709: }
710: }
711: }
712: opener.document.getElementById(maps).value = checkedmaps;
713: opener.document.getElementById(resources).value = checkedresources;
714: window.close();
715: return false;
716: }
717:
718: ENDEX
719: }
720:
721: $scripttag .= '
722: // ]]>
723: </script>
724: ';
725: return $scripttag;
726: }
727:
728: sub get_navmap_object {
729: my ($crstype,$context) = @_;
730: my $navmap = Apache::lonnavmaps::navmap->new();
731: my $outcome;
732: if (!defined($navmap)) {
733: if ($context eq 'imsexport') {
734: $outcome = &Apache::loncommon::start_page('Export '.$crstype.' to IMS Package').
735: '<h2>'.&mt('IMS Export Failed').'</h2>';
736: } elsif ($context eq 'examblock') {
737: $outcome = &Apache::loncommon::start_page('Selection of Resources for Blocking',
738: undef,{'only_body' => 1,}).
739: '<h2>'.&mt('Resource Display Failed').'</h2>';
740: } elsif ($context eq 'dumpdocs') {
741: $outcome = '<h2>'.&mt('Copying to Authoring Space unavailable');
742: }
743: $outcome .= '<div class="LC_error">';
744: if ($crstype eq 'Community') {
745: $outcome .= &mt('Unable to retrieve information about community contents');
746: } else {
747: $outcome .= &mt('Unable to retrieve information about course contents');
748: }
749: $outcome .= '</div>';
750: if (($context eq 'imsexport') || ($context eq 'dumpdocs')) {
751: $outcome .= '<a href="/adm/coursedocs">';
752: if ($crstype eq 'Community') {
753: $outcome .= &mt('Return to Community Editor');
754: } else {
755: $outcome .= &mt('Return to Course Editor');
756: }
757: $outcome .= '</a>';
758: if ($context eq 'imsexport') {
759: &Apache::lonnet::logthis('IMS export failed - could not create navmap object in '.lc($crstype).':'.$env{'request.course.id'});
760: } else {
761: &Apache::lonnet::logthis('Copying to Authoring Space failed - could not create navmap object in '.lc($crstype).':'.$env{'request.course.id'});
762: }
763: } elsif ($context eq 'examblock') {
764: $outcome .= '<href="javascript:window.close();">'.&mt('Close window').'</a>';
765: }
766: return (undef,$outcome);
767: } else {
768: return ($navmap);
769: }
770: }
771:
772: sub clean {
773: my ($title)=@_;
774: $title=~s/[^\w\/\!\$\%\^\*\-\_\=\+\;\:\,\\\|\`\~]+/\_/gs;
775: return $title;
776: }
777:
778: sub enumerate_course_contents {
779: my ($navmap,$map_url,$resource_symb,$titleref,$context,$cdom,$cnum) = @_;
780: if ((ref($navmap)) && (ref($map_url) eq 'HASH') &&
781: (ref($resource_symb) eq 'HASH') && (ref($titleref) eq 'HASH')) {
782: my $it = $navmap->getIterator(undef,undef,undef,1,undef,undef);
783: my $count = 0;
784: while (my $curRes = $it->next()) {
785: if (ref($curRes)) {
786: my $symb = $curRes->symb();
787: my $ressymb = $symb;
788: if ($context eq 'dumpdocs') {
789: next unless (($curRes->src() =~ m{^\Q/uploaded/$cdom/$cnum/\E(docs|supplemental|simplepage)/}) ||
790: ($curRes->src() =~ m{^\Q/uploaded/$cdom/$cnum/\E(default|supplemental)_\d+\.(sequence|page)}) ||
791: ($curRes->src() eq '/res/lib/templates/simpleproblem.problem') ||
792: ($curRes->src() =~ m{^/adm/$match_domain/$match_username/\d+/smppg}));
793: } elsif ($ressymb =~ m{adm/($match_domain)/($match_username)/(\d+)/bulletinboard$}) {
794: unless ($ressymb =~ m{adm/wrapper/adm}) {
795: $ressymb = 'bulletin___'.$3.'___adm/wrapper/adm/'.$1.'/'.$2.'/'.$3.
796: '/bulletinboard';
797: }
798: }
799: $count ++;
800: if (($curRes->is_sequence()) || ($curRes->is_page())) {
801: $map_url->{$count} = (&Apache::lonnet::decode_symb($symb))[2];
802: } else {
803: $resource_symb->{$count} = $ressymb;
804: }
805: $titleref->{$count} = $curRes->title();
806: }
807: }
808: }
809: return;
810: }
811:
812: 1;
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