1: # The LearningOnline Network with CAPA
2: # Routines for configuring blocking of access to collaborative functions,
3: # and specific resources during an exam
4: #
5: # $Id: lonblockingmenu.pm,v 1.9 2013/01/04 05:45:50 raeburn Exp $
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
29: ##############################################################
30: ##############################################################
31:
32: =pod
33:
34: =head1 NAME
35:
36: lonblockingmenu - Handler to set/modify exam blocks in a course.
37:
38: =head1 SYNOPSIS
39:
40: lonblockingmenu provides an interface for setting exam blocks in a course.
41:
42: =head1 DESCRIPTION
43:
44: This module is used to configure blocking of access to collaborative tools
45: and/or resources during an exam.
46:
47: =head1 OVERVIEW
48:
49: To support high-stakes testing, LON-CAPA provides Coordinators with the
50: ability to disable communication and collaborative features within the
51: system for the duration of an exam.
52:
53: Features which can be disabled include:
54: (a) those which a student could use to communicate with another student.
55: Messaging, discussion, chat, blogs, and some functionality in groups fall
56: into this category.
57: (b) those which a student could use to access materials prepared by the
58: student in advance of an exam, (e.g., for use during an online exam, to
59: gain an unfair advantage). Blogs and portfolio fall into this category.
60:
61: For communication blocking to be truly effective in preventing unwanted
62: communication, or access to online materials, online testing needs to
63: take place in a lab setting where use of tools outside LON-CAPA, and use
64: of web sites beyond LON-CAPA are unavailable.
65:
66: Access to specified folder(s) and/or resources in the course contents
67: can also be restricted for the duration of an exam.
68:
69: Exam blocks are of two types:
70: (a) Blocks with a defined start and end date.
71: (b) Blocks associated with a timed interval set for a specific folder,
72: or resource.
73:
74: When a student attempts to use a collaboration or communication feature
75: which is currently blocked, information will be available about the
76: duration of the block, and the identity of the Course Coordinator who
77: set the block.
78:
79: Although LON-CAPA communication can be blocked during an exam, course
80: personnel with the 'evb' (evade blocking) privilege will continue to
81: receive LON-CAPA messages sent from students in a course with an active
82: block on messaging. Students will not be able to view messages sent by
83: other students in the same course for the duration of the blocking event.
84:
85: Because students may be enrolled in more than one LON-CAPA course at a time
86: it is important to use reasonable time windows for blocking events, or, in
87: the case of blocks triggered by clicking a button to start a timed quiz,
88: quiz durations that are of limited duration. This is especially important
89: when blocking prtfolio access, as other courses may require students to use
90: the portfolio as a mechanism for submitting assigments.
91:
92: Information about blocks in a course will be cached for 10 minutes, so,
93: as with parameters set for resources, it can take up to 10 minutes for
94: new blocks, or changes to existing blocks, to propagate to other servers.
95:
96: Changes to existing blocks on the server hosting your current session
97: are available immediately, as cached data on blocks is devalidated
98: automatically on the current server whenever a change is made to a
99: block (including deletion), or when a new block is added.
100:
101: =head1 INTERNAL SUBROUTINES
102:
103: =over
104:
105: =item &get_timed_items()
106:
107: Provides perl data structure with information about timed interval
108: parameters set in a course.
109:
110: Inputs: 2 (optional)
111: $cdom - course's domain
112:
113: $cnum - course's ID
114:
115: Output: 1 Hash
116: nested hashes containing information about timed interval
117: parameters in course). Top level keys are type: course,
118: map, resource. Next inner keys are map or symb. Next
119: inner keys are scope (all, section, group, users).
120: Values are interval (in seconds).
121:
122: =item &blockstore()
123:
124: Stores changes to exam blocks in comm_block.db file for course.
125: Processes deletions, modifications and additions.
126:
127: Inputs: 2
128: $crstype - Container type: Course or Community.
129:
130: $blockcount - Total number of blocking events in course.
131:
132: Outputs: 2
133: $changestotal - Total number of changes made.
134:
135: $output - Information about changes made.
136:
137:
138: =item &enumerate_course_contents()
139:
140: Create hashes of maps (for folders/pages) and symbs (for resources) in
141: a course, where keys are numbers (starting with 1) and values are
142: map url, or symb, for an iteration through the course, as seen by
143: a Course Coordinator. Used to generate numerical IDs to facilitate
144: storage of lists of maps or resources to be blocked during an exam.
145:
146: Inputs: 3
147: $navmap - navmaps object
148:
149: $map_url - reference to hash to contain URLs of maps in course
150:
151: $resource_symb - reference to hash to contain symbs for
152: resources in course
153:
154: Outputs: None
155:
156: Side Effects: $map_url and $resource_symb hashrefs are populated.
157:
158:
159: =item &get_dates_from_form()
160:
161: Extract start and end dates from web form input for blocks with
162: defined start/end time.
163:
164: Inputs: 1 - $item - numeric ID of current block.
165:
166: Outputs: 2 - $startdate, $enddate (UNIX times for start and end times
167: for blocks with defined start/end
168:
169:
170: =item &get_blockdates()
171:
172: Retrieves contents of comm_block.db file for a course.
173:
174: Inputs: 1 - $records - reference to hash to contain blocks
175:
176: Outputs: 1 - $blockcount - number of blocks
177:
178: Side Effects: populates records hashref.
179:
180:
181: =item &get_block_choices()
182:
183: Extract information from web form about which communication/
184: collaboration features are to be blocked, for a partilcuar event,
185: and also which content areas will have access blocked for the
186: duration of the block.
187:
188: Inputs: 3
189: - $item - numeric ID of current block
190:
191: - $map_ref - reference to hash mapping numeric IDs to map urls
192:
193: - $symb_ref - reference to hash mapping numeric IDs to symbs
194:
195: Outputs: 2
196: - $blocktypes - reference to hash of features to be blocked
197:
198: - $blockdocs - boolean - 0 if no blocking of content, 1 if blocking
199: of content access
200:
201:
202: =item &check_release_required()
203:
204: Update LON-CAPA version requirements for course if blocked items
205: (content) or blocking type (triggered by student starting timer)
206: require specific LON-CAPA version (i.e., 2.11).
207:
208: Inputs: 1 - type of constraint (currently: 'docs' or 'timer').
209:
210: Outputs: None
211:
212: Side Effects: &update_released_required() called in lonnet, if
213: needed to update version requirements for course.
214:
215:
216: =item &display_blocker_status()
217:
218: Generates web form elements used to display, cancel, or modify
219: existing blocking events.
220:
221: Inputs: 7
222: - $r - Apache request object
223:
224: - $records - Reference to hash of current blocks
225:
226: - $ltext - Reference to hash of phrases (localized)
227:
228: - $intervals - Reference to hash of parameters for timed intervals
229:
230: - $navmap - navmaps object.
231:
232: - $errormsg - error message for display, if navmaps object
233: could not be instantiated
234:
235: - $blockcount - number of existing blocking events in course
236:
237: Output: None
238:
239: Side Effects: prints web form elements (in a table) for current blocks.
240:
241: =item &convlim()
242:
243: Convert a time interval used for a timed quiz (in seconds) to
244: days, hours. minutes and seconds.
245:
246: Inputs: 1 - $timelimit - time interval in seconds
247:
248: Outputs: 1 - $output - time in format: DD days, HH hours, MM minutes, SS seconds
249:
250:
251: =item &display_addblocker_table()
252:
253: Generate web form elements used to define a new blocking event.
254:
255: Inputs: 6
256: - $r - Apache resource object
257:
258: - $parmcount - current ID for block (same as number of current blocks,
259: block IDs in web form have zero-based index)
260:
261: - $ltext - reference to hash of phrases (localized)
262:
263: - $intervals - Reference to hash of parameters for timed intervals
264:
265: - $navmap - navmaps object
266:
267: - $errormsg - error message for display, if navmaps object
268: could not be instantiated
269:
270: Outputs: None
271:
272: Side Effects: prints web form elements (in a table) for adding a new block.
273:
274:
275: =item &blocker_checkboxes()
276:
277: Generates web form elements in a table for checkboxes used to indicate
278: which types of communication/collaboration and/or content should be blocked.
279:
280: Inputs: 4
281: - $parmcount - numeric ID of current block
282:
283: - $blocks - reference to hash of functionalities to block
284:
285: - $jschg - text of javascript call to execute when checkbox clicked
286: use within a box via 'onclick="$jchg"'
287:
288: - $lookups - reference to hash to map urls or symbs to numeric IDs
289: used to populate hodden form elements containing list
290: of resources and folders with access blocking currently set.
291:
292: Output: 1 - HTML for table of checkboxes for current block
293:
294:
295: =item &create_interval_form()
296:
297: Creates web form elements used to select one of the defined timed interval
298: items in the course for use in an exam block of type: "Triggered by
299: Activating Timer".
300:
301: Inputs: 7 (three required, last four optional)
302: - $intervals - Reference to hash of parameters for timed intervals
303:
304: - $parmcount - numeric ID of current block
305:
306: - $navmap - navmaps object
307:
308: - $currkey - current interval (where this is a block already using
309: an interval-based trigger).
310:
311: - $jschg - text of javascript call to execute when radiobutton clicked
312: use within a box via 'onclick="$jchg"'
313:
314: - $itemname - name/scope of current interval used for this block
315:
316: - $iteminfo - Expandable/collapsible block showing which users are
317: able to activate the timer using the current trigger item.
318:
319: Outputs: 1 - $intervalform - web form elements used to select a time interval
320:
321:
322: =item &trigger_details_toggle()
323:
324: Creates link used to expand item showing information about timer for current
325: trigger for exam block.
326:
327: Inputs: 1 - $parmcount - numericID of exam block in web form.
328:
329: Outputs: 1 - returns HTML for link to display contents of information item
330:
331: =item &show_timer_path()
332:
333: Display hierarchy of names of folders/sub-folders containing the current
334: item identified as an item with an interval timer set.
335:
336: Inputs: 3
337: - $type - map or resource
338:
339: - $item - map URL or resource symb
340:
341: - $navmap - navmaps object
342:
343: Outputs: 1 - HTML containing hierarchy of folders/subfolders (raquo entity separated).
344:
345:
346: =item &blocktype_text()
347:
348: Inputs: None
349:
350: Output: 2
351: - $typeorder - reference to array of blockable communication/collaboration/content
352:
353: - $types -reference to hash of descriptions (localized) of blockable types.
354:
355:
356: =item &blockingmenu_javascript()
357:
358: Create Javascript used to launch pop-up used for content selection, and to
359: toggle visibility of a number of expandable/collapsible divs.
360:
361: Inputs: 1 - $blockcount -
362:
363: Output: 1 - Javascript (with <script></script> tags) for functions used to:
364: (a) launch pop-up window for selection of course content to which
365: access could be blocked.
366: (b) toggle visibility of a number of divs:
367:
368: =over
369:
370: =item * for block type - defined dates or timer activated
371:
372: =item * for action to take -- add or modify block
373:
374: =item * for display of detailed information about intervals
375:
376: =back
377:
378:
379: =back
380:
381: =cut
382:
383: package Apache::lonblockingmenu;
384:
385: use strict;
386: use Apache::lonnet;
387: use Apache::Constants qw(:common :http);
388: use Apache::loncommon();
389: use Apache::lonhtmlcommon();
390: use Apache::lonparmset();
391: use HTML::Entities();
392: use Apache::lonlocal;
393: use lib '/home/httpd/lib/perl/';
394: use LONCAPA qw(:DEFAULT :match);
395:
396: sub handler {
397: my $r=shift;
398:
399: # ----------------------------------------------------------- Set document type
400:
401: &Apache::loncommon::content_type($r,'text/html');
402: $r->send_http_header;
403:
404: return OK if $r->header_only;
405:
406: # Needs to be in a course
407: if (! ($env{'request.course.fn'})) {
408: # Not in a course
409: $env{'user.error.msg'}=
410: "/adm/setblock:dcm:0:0:Cannot set blocking of communications in a course";
411: return HTTP_NOT_ACCEPTABLE;
412: }
413:
414: # ----------------------------------------------------------- Permissions check
415:
416: unless ((&Apache::lonnet::allowed('dcm',$env{'request.course.id'})) ||
417: (&Apache::lonnet::allowed('dcm',$env{'request.course.id'}.
418: '/'.$env{'request.course.sec'}))) {
419: $env{'user.error.msg'}=
420: "/adm/setblock:dcm:0:0:Cannot set blocking of communications in a course";
421: return HTTP_NOT_ACCEPTABLE;
422: }
423:
424: # -----------------------------Get action and calling context from query string
425:
426: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
427: ['action','caller','block']);
428:
429: my $crstype = &Apache::loncommon::course_type();
430: my $action = $env{'form.action'};
431: my %records = ();
432: my $blockcount = 0;
433:
434: # ------------------------------------------------------ Retrieve current blocks
435: $blockcount = &get_blockdates(\%records);
436:
437: # -------------------- Generate display for pop-up of Maps and Resources blocked
438: if ($action eq 'showdocs') {
439: my ($navmap,$errormsg) =
440: &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
441: if (ref($navmap)) {
442: my (%blockedmaps,%blockedresources);
443: if ($env{'form.block'} =~ /^\d+$/) {
444: my @currblocks = sort(keys(%records));
445: my $block = $currblocks[$env{'form.block'}];
446: if (($block ne '') && (ref($records{$block}) eq 'HASH')) {
447: if (ref($records{$block}{'blocks'}) eq 'HASH') {
448: if (ref($records{$block}{'blocks'}{'docs'}) eq 'HASH') {
449: if (ref($records{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
450: %blockedmaps = %{$records{$block}{'blocks'}{'docs'}{'maps'}};
451: }
452: if (ref($records{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
453: %blockedresources = %{$records{$block}{'blocks'}{'docs'}{'resources'}};
454: }
455: }
456: }
457: }
458: }
459: $r->print(&Apache::loncourserespicker::create_picker($navmap,
460: 'examblock','resourceblocks',$crstype,
461: \%blockedmaps,\%blockedresources,
462: $env{'form.block'}));
463: } else {
464: $r->print($errormsg);
465: }
466: return OK;
467: }
468:
469: # -------------------------- Store changes and retrieve latest block information
470: my $storeresult;
471: if ($env{'form.action'} eq 'store') {
472: (my $numchanges,$storeresult) = &blockstore($crstype,$blockcount);
473: if ($numchanges > 0) {
474: $blockcount = &get_blockdates(\%records);
475: }
476: }
477:
478: # ------------------------------------------------------------------ Breadcrumbs
479: &Apache::lonhtmlcommon::clear_breadcrumbs();
480: if ($env{'form.caller'} eq 'email') {
481: &Apache::lonhtmlcommon::add_breadcrumb
482: ({href=>'/adm/communicate',
483: text=>'Communication/Messages',
484: faq=>12,bug=>'Communication Tools',});
485: } else {
486: &Apache::lonhtmlcommon::add_breadcrumb
487: ({href=>'/adm/parmset',
488: text=>'Content and Problem Settings'});
489: }
490: &Apache::lonhtmlcommon::add_breadcrumb
491: ({href=>'/adm/setblock',
492: text=>'Blocking communication/content access'});
493:
494: my $js = &blockingmenu_javascript($blockcount);
495:
496: $r->print(
497: &Apache::loncommon::start_page('Blocking communication/content access',$js).
498: &Apache::lonhtmlcommon::breadcrumbs('Blocking communication/content access'));
499:
500: my $usertype;
501: if ($crstype eq 'Community') {
502: $usertype = 'members';
503: } else {
504: $usertype = 'students';
505: }
506: my $lctype = lc($crstype);
507: my %lt=&Apache::lonlocal::texthash (
508: 'cbds' => 'Blocking communication and/or content access during exams',
509: 'prev' => "For the duration of an exam, or a timed quiz, students in this course can be prevented from:",
510: 'blca' => "Blocks can potentially interrupt legitimate communication between $usertype who are also both enrolled in a different LON-CAPA $lctype.",
511: 'pobl' => "Portfolio blocking can impact a student's ability to complete assigments in courses besides your own. Please use this feature wisely.",
512: 'actt' => "Action to take:",
513: 'addn' => 'Add new blocking event',
514: 'mexb' => 'Modify existing blocking event(s)',
515: 'ncbc' => 'There are no blocking events currently saved.',
516: 'stor' => 'Save',
517: );
518:
519: my %ltext = &Apache::lonlocal::texthash(
520: 'type' => 'Type',
521: 'defs' => 'Defined Start/End',
522: 'trig' => 'Triggered by Activating Timer',
523: 'setb' => 'Set by',
524: 'even' => 'Event',
525: 'blck' => 'Blocked?',
526: 'star' => 'Start',
527: 'endd' => 'End',
528: 'chda' => 'Choose dates',
529: 'chtr' => 'Choose trigger',
530: 'when' => 'When using defined start/end times for an event, please set dates carefully.',
531: 'yes' => 'Yes',
532: 'no' => 'No',
533: );
534:
535: $r->print('<h3>'.$lt{'cbds'}.'</h3>');
536:
537: # ---------------------------------------------------- Get Time Limit parameters
538: my %intervals = &get_timed_items();
539:
540: # -------------------------------------------- Display information about changes
541: if ($env{'form.action'} eq 'store') {
542: $r->print($storeresult);
543: } else {
544: $r->print(
545: $lt{'prev'}.
546: '<ul>'."\n".
547: '<li>'.&mt("displaying LON-CAPA messages sent by other $usertype in the $lctype").'</li>'."\n".
548: '<li>'.&mt("displaying or posting to LON-CAPA discussion boards or live chat in the $lctype").'</li>'."\n".
549: '<li>'.&mt('accessing content in LON-CAPA portfolios or blogs').'</li>'."\n".
550: '<li>'.&mt("generating printouts of $lctype content").'</li>'.
551: '<li>'.&mt("accessing $lctype content in specified folders or resources").'</li>'.
552: '</ul>'.
553: '<p class="LC_warning">'.$lt{'blca'}.'<br />'.$lt{'pobl'}.'</p>'
554: );
555: }
556:
557: # ------------------------ Choose between modifying existing block or adding new
558: $r->print('<form name="blockform" method="post" action="/adm/setblock?action=store">');
559: if ($blockcount > 0) {
560: $r->print(<<"END");
561: <div class="LC_left_float">
562: <fieldset><legend>$lt{'actt'}</legend>
563: <span class="LC_nobreak">
564: <label><input type="radio" name="blockaction" value="modify" id="modifyaction"
565: onclick="toggleAddModify();" checked="checked" />$lt{'mexb'}</label>
566: </span>
567: <br />
568: <span class="LC_nobreak">
569: <label><input type="radio" name="blockaction" value="add" id="addaction"
570: onclick="toggleAddModify();" />$lt{'addn'}</label>
571: </span>
572: </fieldset>
573: </div>
574: <br clear="all" />
575: <div id="showadd" style="display:none">
576: END
577: } else {
578: $r->print($lt{'ncbc'}.'<br /><br />'.
579: '<h4>'.$lt{'addn'}.'</h4>'.
580: '<input type="hidden" name="blockaction" value="add" />');
581: }
582: my ($navmap,$errormsg) =
583: &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
584:
585: # --------------------------------------------- Interface for adding a new block
586: &display_addblocker_table($r,$blockcount,\%ltext,\%intervals,
587: $navmap,$errormsg);
588:
589: # ------------------------------------------------- Interface for existig blocks
590: if ($blockcount > 0) {
591: $r->print('</div>');
592: &display_blocker_status($r,\%records,\%ltext,\%intervals,
593: $navmap,$errormsg,$blockcount);
594: }
595: $r->print(<<"END");
596: <br />
597: <input type ="submit" value="$lt{'stor'}" />
598: </form>
599: END
600: $r->print(&Apache::loncommon::end_page());
601: return OK;
602: }
603:
604: sub get_timed_items {
605: my ($cdom,$cnum) = @_;
606: my ($cid,%intervals);
607: if ($cdom eq '' || $cnum eq '') {
608: $cid = $env{'request.course.id'};
609: $cdom = $env{'course.'.$cid.'.domain'};
610: $cnum = $env{'course.'.$cid.'.num'};
611: } else {
612: $cid = $cdom.'_'.$cnum;
613: }
614: if ($cid eq '') {
615: return %intervals;
616: }
617: my $resourcedata=&Apache::lonparmset::readdata($cnum,$cdom);
618: if (ref($resourcedata) eq 'HASH') {
619: foreach my $key (keys(%{$resourcedata})) {
620: if ($key =~ /^\Q$cid\E(.+)\.0\.interval$/) {
621: my $middle = $1;
622: if ($middle eq '') {
623: $intervals{'course'}{'all'} = $resourcedata->{$key};
624: } elsif ($middle =~ /^\.\[(\w+)\]$/) {
625: $intervals{'course'}{'secgrp'}{$1} = $resourcedata->{$key};
626: } elsif ($middle =~ /^\.\[useropt\:($match_username\:$match_domain)\]$/) {
627: $intervals{'course'}{'users'}{$1} = $resourcedata->{$key};
628: } elsif ($middle =~ /^\.(.+)\Q___(all)\E$/) {
629: my $inner = $1;
630: if ($inner =~ /^\[(\w+)\]\.([^\]]+)$/) {
631: $intervals{'map'}{$2}{'secgrp'}{$1} = $resourcedata->{$key};
632: } elsif ($inner =~ /^\[useropt\:($match_username\:$match_domain)\]\.([^\]]+)$/) {
633: $intervals{'map'}{$2}{'users'}{$1} = $resourcedata->{$key};
634: } else {
635: $intervals{'map'}{$inner}{'all'} = $resourcedata->{$key};
636: }
637: } elsif ($middle =~ /^\.\[(\w+)\]\.([^\]]+)$/) {
638: $intervals{'resource'}{$2}{'secgrp'}{$1} = $resourcedata->{$key};
639: } elsif ($middle =~ /^\.\[useropt\:($match_username\:$match_domain)\]\.([^\]]+)$/) {
640: $intervals{'resource'}{$2}{'users'}{$1} = $resourcedata->{$key};
641: } else {
642: my ($symb) = ($middle =~ /^\.(.+)$/);
643: $intervals{'resource'}{$symb}{'all'} = $resourcedata->{$key};
644: }
645: }
646: }
647: }
648: return %intervals;
649: }
650:
651: sub blockstore {
652: my ($crstype,$blockcount) = @_;
653: my %lt=&Apache::lonlocal::texthash(
654: 'tfcm' => 'The following changes were made',
655: 'ncwm' => 'No changes were made.',
656: 'unna' => 'Unable to retrieve contents of course.',
657: );
658: my %adds = ();
659: my %removals = ();
660: my %cancels = ();
661: my $modtotal = 0;
662: my $canceltotal = 0;
663: my $addtotal = 0;
664: my $changestotal = 0;
665: my $addtimer = 0;
666: my %blocking = ();
667: my (%map_url,%resource_symb,$output);
668: $output = '<h3>'.$lt{'head'}.'</h3>';
669: if ($env{'form.blockaction'} eq 'modify') {
670: foreach my $envkey (keys(%env)) {
671: if ($envkey =~ m/^form\.action_(\d+)$/) {
672: if ($env{$envkey} eq 'modify') {
673: $adds{$1} = 1;
674: $removals{$1} = 1;
675: } elsif ($env{$envkey} eq 'cancel') {
676: $cancels{$1} = $1;
677: unless ( defined($removals{$1}) ) {
678: $removals{$1} = 1;
679: $canceltotal ++;
680: }
681: }
682: }
683: }
684: } elsif ($env{'form.blockaction'} eq 'add') {
685: $adds{$blockcount} = 1;
686: }
687: my ($navmap,$errormsg) =
688: &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
689: unless (ref($navmap)) {
690: $output = $lt{'unna'}.' '.$lt{'ncwm'}.'</br>';
691: return ($changestotal,$output);
692: }
693: &enumerate_course_contents($navmap,\%map_url,\%resource_symb);
694: foreach my $key (keys(%removals)) {
695: my $hashkey = $env{'form.key_'.$key};
696: &Apache::lonnet::del('comm_block',["$hashkey"],
697: $env{'course.'.$env{'request.course.id'}.'.domain'},
698: $env{'course.'.$env{'request.course.id'}.'.num'}
699: );
700: }
701: foreach my $key (keys(%adds)) {
702: unless ( defined($cancels{$key}) ) {
703: my $newkey;
704: if ($env{'form.firstaccess_'.$key}) {
705: my $interval =
706: &HTML::Entities::decode($env{'form.firstaccess_'.$key});
707: if ($interval ne '') {
708: if ($interval eq 'course') {
709: $newkey = 'firstaccess____'.$interval;
710: } elsif ($interval =~ /___\d+___/) {
711: my ($map,$resid,$url) =
712: &Apache::lonnet::decode_symb($interval);
713: if (&Apache::lonnet::is_on_map($url)) {
714: $newkey = 'firstaccess____'.$interval;
715: }
716: } elsif (&Apache::lonnet::is_on_map($interval)) {
717: $newkey = 'firstaccess____'.$interval;
718: }
719: if ($newkey ne '') {
720: unless (defined($removals{$key})) {
721: $addtimer ++;
722: }
723: }
724: }
725: } else {
726: my ($newstart,$newend) = &get_dates_from_form($key);
727: $newkey = $newstart.'____'.$newend;
728: }
729: if ($newkey ne '') {
730: my ($blocktypes,$blockdocs) =
731: &get_block_choices($key,\%map_url,\%resource_symb);
732: $blocking{$newkey} = {
733: setter => $env{'user.name'}.':'.$env{'user.domain'},
734: event => &escape($env{'form.title_'.$key}),
735: blocks => $blocktypes,
736: };
737: if ($blockdocs) {
738: &check_release_required('docs');
739: }
740: if (ref($blocktypes) eq 'HASH') {
741: if ($blocktypes->{'printout'} eq 'on') {
742: &check_release_required('printout');
743: }
744: }
745: if (exists($removals{$key})) {
746: $modtotal ++;
747: } else {
748: $addtotal ++;
749: }
750: } else {
751: if ($env{'form.toggle_'.$key} eq 'timer') {
752: $output .= '<p class="LC_warning">'.
753: &mt('Invalid trigger for new blocking event').
754: '</p>';
755: } else {
756: $output .= '<p class="LC_warning">'.
757: &mt('No date range found for new blocking event').
758: '</p>';
759: }
760: }
761: }
762: }
763: if ($addtotal + $modtotal > 0) {
764: &Apache::lonnet::put('comm_block',\%blocking,
765: $env{'course.'.$env{'request.course.id'}.'.domain'},
766: $env{'course.'.$env{'request.course.id'}.'.num'}
767: );
768: if ($addtimer) {
769: &check_release_required('timer');
770: }
771: }
772: $changestotal = $canceltotal + $modtotal + $addtotal;
773: if ($changestotal > 0) {
774: &Apache::lonnet::devalidate_cache_new('comm_block',
775: $env{'request.course.id'});
776: $output .= $lt{'tfcm'}.'<ul>';
777: if ($canceltotal > 0) {
778: $output .= '<li>'.
779: &mt('[quant,_1,blocking event was,blocking events were] removed.',
780: $canceltotal).
781: '</li>';
782: }
783: if ($modtotal > 0) {
784: $output .= '<li>'.
785: &mt('[quant,_1,blocking event was,blocking events were] modified.',
786: $modtotal).
787: '</li>';
788: }
789: if ($addtotal > 0) {
790: $output .= '<li>'.
791: &mt('[quant,_1,blocking event was,blocking events were] added.',
792: $addtotal).
793: '</li>';
794: }
795: $output .= '</ul>';
796: } else {
797: $output .= $lt{'ncwm'};
798: }
799: $output .= '<br />';
800: return ($changestotal,$output);
801: }
802:
803: sub enumerate_course_contents {
804: my ($navmap,$map_url,$resource_symb) = @_;
805: if ((ref($navmap)) && (ref($map_url) eq 'HASH') &&
806: (ref($resource_symb) eq 'HASH')) {
807: my $it = $navmap->getIterator(undef,undef,undef,1,undef,undef);
808: my $count = 0;
809: while (my $curRes = $it->next()) {
810: if (ref($curRes)) {
811: $count ++;
812: my $symb = $curRes->symb();
813: my $ressymb = $symb;
814: if ($ressymb =~ m|adm/($match_domain)/($match_username)/(\d+)/bulletinboard$|) {
815: unless ($ressymb =~ m|adm/wrapper/adm|) {
816: $ressymb = 'bulletin___'.$3.'___adm/wrapper/adm/'.$1.'/'.$2.'/'.$3.
817: '/bulletinboard';
818: }
819: }
820: if (($curRes->is_sequence()) || ($curRes->is_page())) {
821: $map_url->{$count} = (&Apache::lonnet::decode_symb($symb))[2];
822: } else {
823: $resource_symb->{$count} = $ressymb;
824: }
825: }
826: }
827: }
828: return;
829: }
830:
831: sub get_dates_from_form {
832: my $item = shift;
833: my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$item);
834: my $enddate = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$item);
835: return ($startdate,$enddate);
836: }
837:
838: sub get_blockdates {
839: my ($records) = @_;
840: my $blockcount = 0;
841: %{$records} = &Apache::lonnet::dump('comm_block',
842: $env{'course.'.$env{'request.course.id'}.'.domain'},
843: $env{'course.'.$env{'request.course.id'}.'.num'}
844: );
845: $blockcount = keys(%{$records});
846:
847: if ((keys(%{$records}))[0] =~ /^error: 2 /) {
848: $blockcount = 0;
849: }
850: return $blockcount;
851: }
852:
853: sub get_block_choices {
854: my ($item,$map_ref,$symb_ref) = @_;
855: my $blocklist;
856: my $blockdocs;
857: my ($typeorder,$types) = &blocktype_text();
858: foreach my $type (@{$typeorder}) {
859: if ($type eq 'docs') {
860: if ($env{'form.'.$type.'_'.$item}) {
861: $blocklist->{$type} = {};
862: if ($env{'form.docs_resources_'.$item}) {
863: $env{'form.docs_resources_'.$item} =~ s/,$//;
864: if (ref($symb_ref) eq 'HASH') {
865: my %resources = map { $symb_ref->{$_} => 1; }
866: (split(/,/,$env{'form.docs_resources_'.$item}));
867: $blocklist->{$type}->{resources} = \%resources;
868: if (keys(%resources) > 0) {
869: $blockdocs = 1;
870: }
871: }
872: }
873: if ($env{'form.docs_maps_'.$item}) {
874: $env{'form.docs_maps_'.$item} =~ s/,$//;
875: if (ref($map_ref) eq 'HASH') {
876: my %maps = map { $map_ref->{$_} => 1; }
877: (split(/,/,$env{'form.docs_maps_'.$item}));
878: $blocklist->{$type}->{maps} = \%maps;
879: if (keys(%maps) > 0) {
880: $blockdocs = 1;
881: }
882: }
883: }
884: }
885: } else {
886: if ($env{'form.'.$type.'_'.$item}) {
887: $blocklist->{$type} = 'on';
888: } else {
889: $blocklist->{$type} = 'off';
890: }
891: }
892: }
893: return ($blocklist,$blockdocs);
894: }
895:
896: sub check_release_required {
897: my ($value) = @_;
898: my $needsrelease = $Apache::lonnet::needsrelease{'course:commblock:'.$value};
899: if ($needsrelease) {
900: my $curr_required =
901: $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
902: if ($curr_required eq '') {
903: &Apache::lonnet::update_released_required($needsrelease);
904: } else {
905: my ($currmajor,$currminor) = split(/\./,$curr_required);
906: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
907: if (($currmajor < $needsmajor) ||
908: ($currmajor == $needsmajor && $currminor < $needsminor)) {
909: &Apache::lonnet::update_released_required($needsrelease);
910: }
911: }
912: }
913: return;
914: }
915:
916: sub display_blocker_status {
917: my ($r,$records,$ltext,$intervals,$navmap,$errormsg,$blockcount) = @_;
918: my $parmcount = 0;
919: my (%map_url,%resource_symb,%lookups);
920: &enumerate_course_contents($navmap,\%map_url,\%resource_symb);
921: %{$lookups{'maps'}} = reverse(%map_url);
922: %{$lookups{'resources'}} = reverse(%resource_symb);
923: my %lt = &Apache::lonlocal::texthash(
924: 'modi' => 'Modify',
925: 'dele' => 'Delete',
926: 'noch' => 'No change',
927: );
928: $r->print('<div id="showmodify" style="display:block">'.
929: &Apache::loncommon::start_data_table());
930: $r->print(<<"END");
931: <tr>
932: <th></th>
933: <th>$ltext->{'type'}</th>
934: <th>$ltext->{'even'}</th>
935: <th>$ltext->{'blck'}</th>
936: </tr>
937: END
938: foreach my $record (sort(keys(%{$records}))) {
939: my $jschg =
940: 'javascript:window.document.forms['. "'blockform'".']'.
941: '.elements['."'action_$parmcount'".'][0].checked=true;';
942: my $onchange = 'onfocus="'.$jschg.'"';
943: my ($setuname,$setudom,$title,$blocks) =
944: &Apache::loncommon::parse_block_record($$records{$record});
945: $title = &HTML::Entities::encode($title,'"<>&');
946: my $blockid = &HTML::Entities::encode($record,'"<>&');
947: my $settername =
948: &Apache::loncommon::aboutmewrapper(
949: &Apache::loncommon::plainname($setuname,$setudom),
950: $setuname,$setudom);
951: $r->print(&Apache::loncommon::start_data_table_row());
952: $r->print(<<"ACT");
953:
954: <td valign="middle"><span class="LC_nobreak"><label>
955: <input type="radio" name="action_$parmcount" value="modify" />$lt{'modi'}
956: </label></span><br />
957: <span class="LC_nobreak"><label>
958: <input type="radio" name="action_$parmcount" value="cancel" />$lt{'dele'}
959: </label></span><br />
960: <span class="LC_nobreak"><label>
961: <input type="radio" name="action_$parmcount" id="nochange_$parmcount"
962: value="nochange" checked="checked" />$lt{'noch'}
963: </label></span>
964: </td>
965: ACT
966: my ($start,$end,$startform,$endform);
967: if ($record =~ /^(\d+)____(\d+)$/) {
968: ($start,$end) = split(/____/,$record);
969: $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.
970: $parmcount,$start,$onchange);
971: $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.
972: $parmcount,$end,$onchange);
973: $r->print('<td><fieldset><legend>'.$ltext->{'defs'}.'</legend>'.
974: $ltext->{'star'}.': '.$startform.'<br />'.
975: $ltext->{'endd'}.': '.$endform.'</fieldset></td>');
976: } elsif ($record =~ /^firstaccess____(.+)$/) {
977: my $item = $1;
978: my ($itemname,$iteminfo,$skipdetails);
979: my $type = 'map';
980: my $url;
981: if ($item eq 'course') {
982: $type = 'course';
983: } elsif ($item =~ /___\d+___/) {
984: $type = 'resource';
985: (my $map, my $resid, $url) = &Apache::lonnet::decode_symb($item);
986: } else {
987: $url = $item;
988: }
989: $r->print('<td><fieldset><legend>'.$ltext->{'trig'}.'</legend>');
990: if ($type eq 'course') {
991: $itemname = &mt('Timer for all items in course.');
992: } else {
993: if (&Apache::lonnet::is_on_map($url)) {
994: if ($type eq 'map') {
995: if (ref($navmap)) {
996: my $res = $navmap->getResourceByUrl($item);
997: my $title = $res->compTitle();
998: $itemname = &mt('Timer for all items in folder: [_1]',
999: '<span style="font-style:italic">'.
1000: $title.'</span>');
1001: }
1002: } else {
1003: if (ref($navmap)) {
1004: my $res = $navmap->getBySymb($item);
1005: my $title = $res->compTitle();
1006: $itemname = &mt('Timer for resource: [_1]',
1007: '<span style="font-style:italic">'.
1008: $title.'</span>');
1009: }
1010: }
1011: if (ref($navmap)) {
1012: my $path = &show_timer_path($type,$item);
1013: if ($path) {
1014: $iteminfo = ' <span style="font-size:90%;">'.
1015: &mt('(in: [_1])',$path).
1016: '</span>';
1017: }
1018: }
1019: } else {
1020: $skipdetails = 1;
1021: $itemname = '<span style="LC_warning">'.
1022: &mt('Timer folder/resource not in course').
1023: '</span>';
1024: }
1025: }
1026: if ((!$skipdetails) && (ref($intervals) eq 'HASH')) {
1027: if (ref($intervals->{$type}) eq 'HASH') {
1028: $iteminfo .= &trigger_details_toggle($parmcount).
1029: '<ul id="trigdetails_'.$parmcount.'" style="display:none">';
1030: if ($type eq 'course') {
1031: foreach my $scope (keys(%{$intervals->{$type}})) {
1032: if ($scope eq 'all') {
1033: $iteminfo .= '<li>'.&mt('All users -- time limit: [_1]',
1034: &convlim($intervals->{$type}->{$scope})).'</li>';
1035: } elsif ($scope eq 'secgrp') {
1036: if (ref($intervals->{$type}->{$scope}) eq 'HASH') {
1037: $iteminfo .= '<li>'.&mt('Sections/groups').'<ul>';
1038: foreach my $item (sort(keys(%{$intervals->{$type}->{$scope}}))) {
1039: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',$item,
1040: &convlim($intervals->{$type}->{$scope}->{$item})).
1041: '</li>';
1042: }
1043: $iteminfo .= '</ul></li>';
1044: }
1045: } elsif ($scope eq 'users') {
1046: if (ref($intervals->{$type}->{$scope}) eq 'HASH') {
1047: $iteminfo .= '<li>'.&mt('Users').'<ul>';
1048: foreach my $item (sort(keys(%{$intervals->{$type}->{$scope}}))) {
1049: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',
1050: &convlim($item,$intervals->{$type}->{$scope}->{$item})).
1051: '</li>';
1052: }
1053: $iteminfo .= '</ul></li>';
1054: }
1055: }
1056: }
1057: } elsif (($type eq 'map') || ($type eq 'resource')) {
1058: if (ref($intervals->{$type}->{$item}) eq 'HASH') {
1059: foreach my $scope (keys(%{$intervals->{$type}->{$item}})) {
1060: if ($scope eq 'all') {
1061: $iteminfo .= '<li>'.&mt('All users -- time limit: [_1]',
1062: &convlim($intervals->{$type}->{$item}->{$scope})).
1063: '</li>';
1064: } elsif ($scope eq 'secgrp') {
1065: if (ref($intervals->{$type}->{$item}->{$scope}) eq 'HASH') {
1066: $iteminfo .= '<li>'.&mt('Sections/groups').'<ul>';
1067: foreach my $sec (sort(keys(%{$intervals->{$type}->{$item}->{$scope}}))) {
1068: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',$sec,
1069: &convlim($intervals->{$type}->{$item}->{$scope}->{$sec})).
1070: '</li>';
1071: }
1072: $iteminfo .= '</ul></li>';
1073: }
1074: } elsif ($scope eq 'users') {
1075: if (ref($intervals->{$type}->{$item}->{$scope}) eq 'HASH') {
1076: $iteminfo .= '<li>'.&mt('Users').'<ul>';
1077: foreach my $user (sort(keys(%{$intervals->{$type}->{$item}->{$scope}}))) {
1078: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',$user,
1079: &convlim($intervals->{$type}->{$item}->{$scope}->{$user})).
1080: '</li>';
1081: }
1082: $iteminfo .= '</ul></li>';
1083: }
1084: }
1085: }
1086: }
1087: }
1088: $iteminfo .= '</ul>';
1089: }
1090: }
1091: $r->print(&create_interval_form($intervals,$parmcount,$navmap,$item,$jschg,
1092: $itemname,$iteminfo).'</fieldset></td>');
1093: }
1094: $r->print(<<"END");
1095: <td>
1096: <input type="text" name="title_$parmcount" size="15" value="$title" onfocus="$jschg" />
1097: <input type="hidden" name="key_$parmcount" value="$blockid" />
1098: <br />
1099: <br />
1100: $ltext->{'setb'}: $settername
1101: </td>
1102: END
1103: $r->print('<td>'.&blocker_checkboxes($parmcount,$blocks,$jschg,\%lookups).'</td>'.
1104: &Apache::loncommon::end_data_table_row());
1105: $parmcount++;
1106: }
1107: $r->print(<<"END");
1108: </table>
1109: </div>
1110: END
1111: return;
1112: }
1113:
1114: sub convlim {
1115: my ($timelimit) = @_;
1116: my @order = ('days','hours','minutes','seconds');
1117: my %catlimits = (
1118: days => 86400,
1119: hours => 3600,
1120: minutes => 60,
1121: );
1122: my @toshow;
1123: foreach my $cat (@order) {
1124: if ($cat eq 'seconds') {
1125: if ($timelimit > 0) {
1126: push(@toshow,&mt("[_1] $cat",$timelimit));
1127: }
1128: } elsif ($timelimit >= $catlimits{$cat}) {
1129: my $val = int($timelimit/$catlimits{$cat});
1130: if ($val > 0) {
1131: push(@toshow,&mt("[_1] $cat",$val));
1132: }
1133: $timelimit -= $val*$catlimits{$cat};
1134: }
1135: }
1136: my $output = join(', ',@toshow);
1137: return $output;
1138: }
1139:
1140: sub display_addblocker_table {
1141: my ($r,$parmcount,$ltext,$intervals,$navmap,$errormsg) = @_;
1142: return unless ((ref($ltext) eq 'HASH') && (ref($intervals) eq 'HASH'));
1143: my $start = time;
1144: my $end = $start + (60 * 60 * 2); #Default is an exam of 2 hours duration.
1145: my $onchange = 'onfocus="javascript:window.document.forms['.
1146: "'blockform'].elements['addaction'].".
1147: 'checked=true;"';
1148: my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.
1149: $parmcount,$start,$onchange);
1150: my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.
1151: $parmcount,$end,$onchange);
1152: my %lt = &Apache::lonlocal::texthash(
1153: 'exam' => 'e.g., Exam 1',
1154: );
1155: my $intervalform = &create_interval_form($intervals,$parmcount,$navmap);
1156: if ($intervalform ne '') {
1157: $intervalform = '<fieldset>'.
1158: '<legend>'.$ltext->{'chtr'}.'</legend>'.
1159: $intervalform.
1160: '</fieldset>';
1161: }
1162: $r->print(&Apache::loncommon::start_data_table());
1163: $r->print(<<"END");
1164: <tr>
1165: <th>$ltext->{'type'}</th>
1166: <th>$ltext->{'even'} $lt{'exam'}</th>
1167: <th>$ltext->{'blck'}</th>
1168: </tr>
1169: END
1170: $r->print(&Apache::loncommon::start_data_table_row().'<td>');
1171: $r->print(<<"END");
1172: <span class="LC_nobreak"><label><input type="radio" id="toggle_startstop"
1173: name="toggle_$parmcount" value="startstop" onclick="showBlockType();" checked="checked" />
1174: $ltext->{'defs'}</label></span>
1175: <span class="LC_nobreak"><label><input type="radio" id="toggle_timer" name="toggle_$parmcount"
1176: value="timer" onclick="showBlockType();" />$ltext->{'trig'}</label></span><br />
1177: <div id="show_startstop" style="display:block">
1178: <fieldset><legend>$ltext->{'chda'}</legend>
1179: $ltext->{'star'}: $startform<br />$ltext->{'endd'}: $endform</fieldset>
1180: <span class="LC_warning">$ltext->{'when'}</span></div>
1181: <div id="show_timer" style="display:none">$intervalform</div>
1182: </td>
1183: <td><input type="text" name="title_$parmcount" size="15" value="" /></td>
1184: END
1185: $r->print('<td>'.&blocker_checkboxes($parmcount).'</td>'.
1186: &Apache::loncommon::end_data_table_row().
1187: &Apache::loncommon::end_data_table()."\n".
1188: '<br />');
1189: return;
1190: }
1191:
1192: sub blocker_checkboxes {
1193: my ($parmcount,$blocks,$jschg,$lookups) = @_;
1194: my ($typeorder,$types) = &blocktype_text();
1195: my $numinrow = 2;
1196: my %currdocs;
1197: my $output = '<table>';
1198: for (my $i=0; $i<@{$typeorder}; $i++) {
1199: my $block = $typeorder->[$i];
1200: my ($clickaction,$blockstatus);
1201: if ($jschg) {
1202: $clickaction = $jschg;
1203: }
1204: if ($block eq 'docs') {
1205: if ((ref($blocks) eq 'HASH') && (ref($lookups) eq 'HASH')) {
1206: if (ref($blocks->{$block}) eq 'HASH') {
1207: if (keys(%{$blocks->{$block}}) > 0) {
1208: $blockstatus = 'checked="checked"';
1209: foreach my $key (sort(keys(%{$blocks->{$block}}))) {
1210: if (ref($blocks->{$block}{$key}) eq 'HASH') {
1211: my @current = ();
1212: foreach my $item (keys(%{$blocks->{$block}{$key}})) {
1213: if ($lookups->{$key}{$item}) {
1214: push(@current,$lookups->{$key}{$item});
1215: }
1216: }
1217: if (@current > 0) {
1218: @current=sort { $a <=> $b } (@current);
1219: $currdocs{$key} = join(',',@current);
1220: }
1221: }
1222: }
1223: }
1224: }
1225: }
1226: $clickaction .= 'javascript:resblockinfo('."'$parmcount'".');';
1227: } else {
1228: if (ref($blocks) eq 'HASH') {
1229: if ($blocks->{$block} eq 'on') {
1230: $blockstatus = 'checked="checked"';
1231: }
1232: }
1233: }
1234: my $rem = $i%($numinrow);
1235: if ($rem == 0) {
1236: if ($i > 0) {
1237: $output .= '</tr>';
1238: }
1239: $output .= '<tr>';
1240: }
1241: if ($i == scalar(@{$typeorder})-1) {
1242: my $colsleft = $numinrow-$rem;
1243: if ($colsleft > 1) {
1244: $output .= '<td colspan="'.$colsleft.'">';
1245: } else {
1246: $output .= '<td>';
1247: }
1248: } else {
1249: $output .= '<td>';
1250: }
1251: my $item = $block.'_'.$parmcount;
1252: if ($clickaction) {
1253: $clickaction = ' onclick="'.$clickaction.'"';
1254: }
1255: if ($blockstatus) {
1256: $blockstatus = ' '.$blockstatus;
1257: }
1258: $output .= '<span class="LC_nobreak"><label>'."\n".
1259: '<input type="checkbox" id="'.$item.'" name="'.$item.'"'.
1260: $blockstatus.$clickaction.' value="1" />'.
1261: $types->{$block}.'</label></span>'."\n";
1262: if ($block eq 'docs') {
1263: if ($blockstatus ne '') {
1264: $output .= ' <a href="javascript:resblockinfo('."'$parmcount'".')">'.
1265: &mt('Details').'</a>';
1266: }
1267: }
1268: $output .= '<br /></td>';
1269: }
1270: $output .= '</tr></table>'.
1271: '<input type="hidden" name="docs_maps_'.$parmcount.'"'.
1272: ' id="docs_maps_'.$parmcount.'" value="'.$currdocs{'maps'}.'" />'.
1273: '<input type="hidden" name="docs_resources_'.$parmcount.'"'.
1274: ' id="docs_resources_'.$parmcount.'" value="'.$currdocs{'resources'}.'" />';
1275: return $output;
1276: }
1277:
1278: sub create_interval_form {
1279: my ($intervals,$parmcount,$navmap,$currkey,$jschg,$itemname,$iteminfo) = @_;
1280: return unless ((ref($intervals) eq 'HASH') && (ref($navmap)));
1281: my $intervalform;
1282: if (keys(%{$intervals}) > 0) {
1283: foreach my $type (sort(keys(%{$intervals}))) {
1284: if ($type eq 'course') {
1285: my ($checked,$clickaction);
1286: if ($currkey eq 'course') {
1287: $checked = ' checked="checked"';
1288: } elsif ($jschg) {
1289: $clickaction = ' onclick="'.$jschg.'"';
1290: }
1291: $intervalform .= '<label><input type="radio" name="firstaccess_'.$parmcount.
1292: '" value="course"'.$checked.$clickaction.' />';
1293: if ($currkey eq 'course') {
1294: $intervalform .= $itemname;
1295: } else {
1296: $intervalform .= &mt('Timer for all items in course');
1297: }
1298: $intervalform .= '</label>';
1299: if ($currkey eq 'course') {
1300: $intervalform .= $iteminfo;
1301: }
1302: $intervalform .= '<br />';
1303: } elsif ($type eq 'map') {
1304: if (ref($intervals->{$type}) eq 'HASH') {
1305: if (ref($navmap)) {
1306: foreach my $map (sort(keys(%{$intervals->{$type}}))) {
1307: my ($checked,$clickaction);
1308: if ($currkey eq $map) {
1309: $checked = ' checked="checked"';
1310: } elsif ($jschg) {
1311: $clickaction = ' onclick="'.$jschg.'"';
1312: }
1313: $intervalform .= '<label><input type="radio" name="firstaccess_'.$parmcount.
1314: '" value="'.&HTML::Entities::encode($map,'"<>&').'"'.
1315: $checked.$clickaction.' />';
1316: if ($currkey eq $map) {
1317: $intervalform .= $itemname.'</label>';
1318: } else {
1319: my $res = $navmap->getResourceByUrl($map);
1320: my $title = $res->compTitle();
1321: my $path;
1322: my $hierarchy = &show_timer_path($type,$map,$navmap);
1323: if ($hierarchy) {
1324: $path = ' <span style="font-size:90%;">'.
1325: &mt('(in: [_1])',$hierarchy).
1326: '</span>';
1327: }
1328: $intervalform .= &mt('Timer for all items in folder: [_1]',
1329: '<i>'.$title.'</i>').
1330: '</label>'.$path;
1331: }
1332: if ($currkey eq $map) {
1333: $intervalform .= $iteminfo;
1334: }
1335: $intervalform .= '<br />';
1336: }
1337: }
1338: }
1339: } elsif ($type eq 'resource') {
1340: if (ref($intervals->{$type}) eq 'HASH') {
1341: if (ref($navmap)) {
1342: foreach my $resource (sort(keys(%{$intervals->{$type}}))) {
1343: my ($checked,$clickaction);
1344: if ($currkey eq $resource) {
1345: $checked = ' checked="checked"';
1346: } elsif ($jschg) {
1347: $clickaction = ' onclick="'.$jschg.'"';
1348: }
1349: $intervalform .= '<label><input type="radio" name="firstaccess_'.$parmcount.
1350: '" value="'.&HTML::Entities::encode($resource,'"<>&').'"'.
1351: $checked.$clickaction.' />';
1352: if ($currkey eq $resource) {
1353: $intervalform .= $itemname.'</label>';
1354: } else {
1355: my $res = $navmap->getBySymb($resource);
1356: my $title = $res->compTitle();
1357: my $path;
1358: my $hierarchy = &show_timer_path($type,$resource,$navmap);
1359: if ($hierarchy) {
1360: $path = ' <span style="font-size:90%;">'.
1361: &mt('(in: [_1])',$hierarchy).
1362: '</span>';
1363: }
1364: $intervalform .= &mt('Timer for resource: [_1]','<i>'.$title.'</i>').
1365: '</label>'.
1366: $path;
1367: }
1368: if ($currkey eq $resource) {
1369: $intervalform .= $iteminfo;
1370: }
1371: $intervalform .= '<br />';
1372: }
1373: }
1374: }
1375: }
1376: }
1377: } else {
1378: if ($currkey ne '') {
1379: $intervalform = '<input type="radio" name="firstaccess_'.$parmcount.
1380: '" checked="checked" value="'.
1381: &HTML::Entities::encode($currkey,'"<>&').' />'.
1382: $itemname.'<br />';
1383: } else {
1384: $intervalform = &mt('No timed items defined.').' '.
1385: &mt('Use [_1]Settings[_2] to assign a timer, then return here.',
1386: '<a href="/adm/parmset">','</a>');
1387: }
1388: }
1389: return $intervalform;
1390: }
1391:
1392: sub trigger_details_toggle {
1393: my ($parmcount) = @_;
1394: return ' <span id="toggletext_'.$parmcount.'" class="LC_cusr_subheading LC_nobreak">'.
1395: '<a href="javascript:showTriggerDetails('."'$parmcount'".');" '.
1396: 'style="text-decoration: none;"><b>'.&mt('(More ...)').'</b></a></span>';
1397: }
1398:
1399: sub show_timer_path {
1400: my ($type,$item,$navmap) = @_;
1401: return unless(ref($navmap));
1402: my @pathitems;
1403: if ($type eq 'map') {
1404: @pathitems =
1405: &Apache::loncommon::get_folder_hierarchy($navmap,$item);
1406: } elsif ($type eq 'resource') {
1407: my ($map,$id,$resource) = &Apache::lonnet::decode_symb($item);
1408: @pathitems =
1409: &Apache::loncommon::get_folder_hierarchy($navmap,$map,1);
1410: }
1411: if (@pathitems) {
1412: return join(' » ',@pathitems);
1413: }
1414: return;
1415: }
1416:
1417: sub blocktype_text {
1418: my %types = &Apache::lonlocal::texthash(
1419: 'com' => 'Messaging',
1420: 'chat' => 'Chat Room',
1421: 'boards' => 'Discussion',
1422: 'port' => 'Portfolio',
1423: 'groups' => 'Groups',
1424: 'blogs' => 'Blogs',
1425: 'docs' => 'Content',
1426: 'printout' => 'Printouts',
1427: );
1428: my $typeorder = ['com','chat','boards','port','groups','blogs','printout','docs'];
1429: return ($typeorder,\%types);
1430: }
1431:
1432: sub blockingmenu_javascript {
1433: my ($blockcount) = @_;
1434: my %lt = &Apache::lonlocal::texthash (
1435: more => 'More ...',
1436: less => 'Less ...',
1437: );
1438: return <<ENDSCRIPT;
1439: <script type="text/javascript">
1440: // <![CDATA[
1441: function resblockinfo(blockid) {
1442: if (document.getElementById('docs_'+blockid).checked) {
1443: var resblockwin = null;
1444: var url = '/adm/setblock?action=showdocs&block='+blockid;
1445: if (!resblockwin || resblockwin.closed) {
1446: resblockwin=window.open(url,'blockingwin','height=480,width=600,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1447: }
1448: resblockwin.focus();
1449: } else {
1450: document.getElementById('docs_resources_'+blockid).value = '';
1451: document.getElementById('docs_maps_'+blockid).value = '';
1452: }
1453: return;
1454: }
1455:
1456: function showBlockType() {
1457: if (document.getElementById('toggle_startstop').checked == true) {
1458: document.getElementById('show_startstop').style.display='block';
1459: } else {
1460: document.getElementById('show_startstop').style.display='none';
1461: }
1462: if (document.getElementById('toggle_timer').checked == true) {
1463: document.getElementById('show_timer').style.display='block';
1464: } else {
1465: document.getElementById('show_timer').style.display='none';
1466: }
1467: return;
1468: }
1469:
1470: function toggleAddModify() {
1471: for (var i=0; i<document.blockform.blockaction.length; i++) {
1472: if (document.blockform.blockaction[i].checked) {
1473: if (document.blockform.blockaction[i].value == 'add') {
1474: document.getElementById('showadd').style.display='block';
1475: document.getElementById('showmodify').style.display='none';
1476: var blocktotal = $blockcount;
1477: if (blocktotal > 0) {
1478: for (var i=0; i<blocktotal; i++) {
1479: document.getElementById('nochange_'+i).checked = true;
1480: }
1481: }
1482: document.getElementById('showmodify').style.display='none';
1483: document.getElementById('showadd').style.display='block';
1484: } else {
1485: document.getElementById('showadd').style.display='none';
1486: document.getElementById('showmodify').style.display='block';
1487: }
1488: }
1489: }
1490: return;
1491: }
1492:
1493: function showTriggerDetails(item) {
1494: document.getElementById('trigdetails_'+item).style.display='block';
1495: document.getElementById('trigdetails_'+item).style.textAlign='left';
1496: document.getElementById('trigdetails_'+item).style.textFace='normal';
1497: document.getElementById('toggletext_'+item).innerHTML = '<a href="javascript:hideTriggerDetails('+item+');" style="text-decoration: none;"><b>($lt{'less'})</b></a>';
1498: return;
1499: }
1500:
1501: function hideTriggerDetails(item) {
1502: document.getElementById('trigdetails_'+item).style.display='none';
1503: document.getElementById('toggletext_'+item).innerHTML = '<a href="javascript:showTriggerDetails('+item+');" style="text-decoration: none;"><b>($lt{'more'})</b></a>';
1504: return;
1505: }
1506:
1507: // ]]>
1508: </script>
1509: ENDSCRIPT
1510:
1511: }
1512:
1513: 1;
1514:
1515: __END__
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