Annotation of loncom/interface/lonblockingmenu.pm, revision 1.11
1.1 raeburn 1: # The LearningOnline Network with CAPA
1.4 raeburn 2: # Routines for configuring blocking of access to collaborative functions,
3: # and specific resources during an exam
1.1 raeburn 4: #
1.11 ! bisitz 5: # $Id: lonblockingmenu.pm,v 1.10 2013/11/12 14:36:07 raeburn Exp $
1.1 raeburn 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: #
1.4 raeburn 29: ##############################################################
1.1 raeburn 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:
1.4 raeburn 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
1.11 ! bisitz 90: the portfolio as a mechanism for submitting assignments.
1.4 raeburn 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:
1.1 raeburn 101: =head1 INTERNAL SUBROUTINES
102:
103: =over
104:
1.4 raeburn 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:
1.1 raeburn 122: =item &blockstore()
123:
1.4 raeburn 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:
1.1 raeburn 138: =item &get_dates_from_form()
139:
1.4 raeburn 140: Extract start and end dates from web form input for blocks with
141: defined start/end time.
142:
143: Inputs: 1 - $item - numeric ID of current block.
144:
145: Outputs: 2 - $startdate, $enddate (UNIX times for start and end times
146: for blocks with defined start/end
147:
148:
1.1 raeburn 149: =item &get_blockdates()
150:
1.4 raeburn 151: Retrieves contents of comm_block.db file for a course.
152:
153: Inputs: 1 - $records - reference to hash to contain blocks
154:
155: Outputs: 1 - $blockcount - number of blocks
156:
157: Side Effects: populates records hashref.
158:
159:
1.1 raeburn 160: =item &get_block_choices()
161:
1.4 raeburn 162: Extract information from web form about which communication/
163: collaboration features are to be blocked, for a partilcuar event,
164: and also which content areas will have access blocked for the
165: duration of the block.
166:
167: Inputs: 3
168: - $item - numeric ID of current block
169:
170: - $map_ref - reference to hash mapping numeric IDs to map urls
171:
172: - $symb_ref - reference to hash mapping numeric IDs to symbs
173:
174: Outputs: 2
175: - $blocktypes - reference to hash of features to be blocked
176:
177: - $blockdocs - boolean - 0 if no blocking of content, 1 if blocking
178: of content access
179:
180:
181: =item &check_release_required()
182:
183: Update LON-CAPA version requirements for course if blocked items
184: (content) or blocking type (triggered by student starting timer)
185: require specific LON-CAPA version (i.e., 2.11).
186:
187: Inputs: 1 - type of constraint (currently: 'docs' or 'timer').
188:
189: Outputs: None
190:
191: Side Effects: &update_released_required() called in lonnet, if
192: needed to update version requirements for course.
193:
194:
1.1 raeburn 195: =item &display_blocker_status()
196:
1.4 raeburn 197: Generates web form elements used to display, cancel, or modify
198: existing blocking events.
199:
200: Inputs: 7
201: - $r - Apache request object
202:
203: - $records - Reference to hash of current blocks
204:
205: - $ltext - Reference to hash of phrases (localized)
206:
207: - $intervals - Reference to hash of parameters for timed intervals
208:
209: - $navmap - navmaps object.
210:
211: - $errormsg - error message for display, if navmaps object
212: could not be instantiated
213:
214: - $blockcount - number of existing blocking events in course
215:
216: Output: None
217:
218: Side Effects: prints web form elements (in a table) for current blocks.
219:
220: =item &convlim()
221:
222: Convert a time interval used for a timed quiz (in seconds) to
223: days, hours. minutes and seconds.
224:
225: Inputs: 1 - $timelimit - time interval in seconds
226:
227: Outputs: 1 - $output - time in format: DD days, HH hours, MM minutes, SS seconds
228:
229:
1.1 raeburn 230: =item &display_addblocker_table()
231:
1.4 raeburn 232: Generate web form elements used to define a new blocking event.
233:
234: Inputs: 6
235: - $r - Apache resource object
236:
237: - $parmcount - current ID for block (same as number of current blocks,
238: block IDs in web form have zero-based index)
239:
240: - $ltext - reference to hash of phrases (localized)
241:
242: - $intervals - Reference to hash of parameters for timed intervals
243:
244: - $navmap - navmaps object
245:
246: - $errormsg - error message for display, if navmaps object
247: could not be instantiated
248:
249: Outputs: None
250:
251: Side Effects: prints web form elements (in a table) for adding a new block.
252:
253:
254: =item &blocker_checkboxes()
255:
256: Generates web form elements in a table for checkboxes used to indicate
257: which types of communication/collaboration and/or content should be blocked.
258:
259: Inputs: 4
260: - $parmcount - numeric ID of current block
261:
262: - $blocks - reference to hash of functionalities to block
263:
264: - $jschg - text of javascript call to execute when checkbox clicked
265: use within a box via 'onclick="$jchg"'
266:
267: - $lookups - reference to hash to map urls or symbs to numeric IDs
268: used to populate hodden form elements containing list
269: of resources and folders with access blocking currently set.
270:
271: Output: 1 - HTML for table of checkboxes for current block
272:
273:
274: =item &create_interval_form()
275:
276: Creates web form elements used to select one of the defined timed interval
277: items in the course for use in an exam block of type: "Triggered by
278: Activating Timer".
279:
280: Inputs: 7 (three required, last four optional)
281: - $intervals - Reference to hash of parameters for timed intervals
282:
283: - $parmcount - numeric ID of current block
284:
285: - $navmap - navmaps object
286:
287: - $currkey - current interval (where this is a block already using
288: an interval-based trigger).
289:
290: - $jschg - text of javascript call to execute when radiobutton clicked
291: use within a box via 'onclick="$jchg"'
292:
293: - $itemname - name/scope of current interval used for this block
294:
295: - $iteminfo - Expandable/collapsible block showing which users are
296: able to activate the timer using the current trigger item.
297:
298: Outputs: 1 - $intervalform - web form elements used to select a time interval
299:
300:
301: =item &trigger_details_toggle()
302:
303: Creates link used to expand item showing information about timer for current
304: trigger for exam block.
305:
306: Inputs: 1 - $parmcount - numericID of exam block in web form.
307:
308: Outputs: 1 - returns HTML for link to display contents of information item
309:
310: =item &show_timer_path()
311:
312: Display hierarchy of names of folders/sub-folders containing the current
313: item identified as an item with an interval timer set.
314:
315: Inputs: 3
316: - $type - map or resource
317:
318: - $item - map URL or resource symb
319:
320: - $navmap - navmaps object
321:
322: Outputs: 1 - HTML containing hierarchy of folders/subfolders (raquo entity separated).
323:
324:
1.1 raeburn 325: =item &blocktype_text()
326:
1.4 raeburn 327: Inputs: None
328:
329: Output: 2
330: - $typeorder - reference to array of blockable communication/collaboration/content
331:
332: - $types -reference to hash of descriptions (localized) of blockable types.
333:
334:
335: =item &blockingmenu_javascript()
336:
337: Create Javascript used to launch pop-up used for content selection, and to
338: toggle visibility of a number of expandable/collapsible divs.
339:
340: Inputs: 1 - $blockcount -
341:
342: Output: 1 - Javascript (with <script></script> tags) for functions used to:
343: (a) launch pop-up window for selection of course content to which
344: access could be blocked.
345: (b) toggle visibility of a number of divs:
346:
347: =over
348:
349: =item * for block type - defined dates or timer activated
350:
351: =item * for action to take -- add or modify block
352:
353: =item * for display of detailed information about intervals
354:
355: =back
356:
357:
1.1 raeburn 358: =back
359:
1.2 raeburn 360: =cut
1.1 raeburn 361:
362: package Apache::lonblockingmenu;
363:
364: use strict;
365: use Apache::lonnet;
366: use Apache::Constants qw(:common :http);
367: use Apache::loncommon();
368: use Apache::lonhtmlcommon();
1.4 raeburn 369: use Apache::lonparmset();
1.10 raeburn 370: use Apache::loncourserespicker();
1.1 raeburn 371: use HTML::Entities();
372: use Apache::lonlocal;
373: use lib '/home/httpd/lib/perl/';
374: use LONCAPA qw(:DEFAULT :match);
375:
376: sub handler {
377: my $r=shift;
378:
379: # ----------------------------------------------------------- Set document type
380:
381: &Apache::loncommon::content_type($r,'text/html');
382: $r->send_http_header;
383:
384: return OK if $r->header_only;
385:
386: # Needs to be in a course
387: if (! ($env{'request.course.fn'})) {
388: # Not in a course
389: $env{'user.error.msg'}=
390: "/adm/setblock:dcm:0:0:Cannot set blocking of communications in a course";
391: return HTTP_NOT_ACCEPTABLE;
392: }
393:
394: # ----------------------------------------------------------- Permissions check
395:
1.3 raeburn 396: unless ((&Apache::lonnet::allowed('dcm',$env{'request.course.id'})) ||
397: (&Apache::lonnet::allowed('dcm',$env{'request.course.id'}.
1.1 raeburn 398: '/'.$env{'request.course.sec'}))) {
1.3 raeburn 399: $env{'user.error.msg'}=
400: "/adm/setblock:dcm:0:0:Cannot set blocking of communications in a course";
1.1 raeburn 401: return HTTP_NOT_ACCEPTABLE;
402: }
403:
404: # -----------------------------Get action and calling context from query string
405:
1.4 raeburn 406: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
407: ['action','caller','block']);
1.1 raeburn 408:
1.4 raeburn 409: my $crstype = &Apache::loncommon::course_type();
410: my $action = $env{'form.action'};
411: my %records = ();
412: my $blockcount = 0;
413:
414: # ------------------------------------------------------ Retrieve current blocks
415: $blockcount = &get_blockdates(\%records);
416:
417: # -------------------- Generate display for pop-up of Maps and Resources blocked
418: if ($action eq 'showdocs') {
419: my ($navmap,$errormsg) =
420: &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
421: if (ref($navmap)) {
422: my (%blockedmaps,%blockedresources);
423: if ($env{'form.block'} =~ /^\d+$/) {
424: my @currblocks = sort(keys(%records));
425: my $block = $currblocks[$env{'form.block'}];
426: if (($block ne '') && (ref($records{$block}) eq 'HASH')) {
427: if (ref($records{$block}{'blocks'}) eq 'HASH') {
428: if (ref($records{$block}{'blocks'}{'docs'}) eq 'HASH') {
429: if (ref($records{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
430: %blockedmaps = %{$records{$block}{'blocks'}{'docs'}{'maps'}};
431: }
432: if (ref($records{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
433: %blockedresources = %{$records{$block}{'blocks'}{'docs'}{'resources'}};
434: }
435: }
436: }
437: }
438: }
439: $r->print(&Apache::loncourserespicker::create_picker($navmap,
440: 'examblock','resourceblocks',$crstype,
441: \%blockedmaps,\%blockedresources,
442: $env{'form.block'}));
443: } else {
444: $r->print($errormsg);
445: }
446: return OK;
447: }
1.1 raeburn 448:
1.4 raeburn 449: # -------------------------- Store changes and retrieve latest block information
450: my $storeresult;
451: if ($env{'form.action'} eq 'store') {
452: (my $numchanges,$storeresult) = &blockstore($crstype,$blockcount);
453: if ($numchanges > 0) {
454: $blockcount = &get_blockdates(\%records);
455: }
456: }
457:
458: # ------------------------------------------------------------------ Breadcrumbs
1.1 raeburn 459: &Apache::lonhtmlcommon::clear_breadcrumbs();
460: if ($env{'form.caller'} eq 'email') {
461: &Apache::lonhtmlcommon::add_breadcrumb
462: ({href=>'/adm/communicate',
463: text=>'Communication/Messages',
464: faq=>12,bug=>'Communication Tools',});
465: } else {
466: &Apache::lonhtmlcommon::add_breadcrumb
467: ({href=>'/adm/parmset',
468: text=>'Content and Problem Settings'});
469: }
470: &Apache::lonhtmlcommon::add_breadcrumb
471: ({href=>'/adm/setblock',
1.6 raeburn 472: text=>'Blocking communication/content access'});
1.1 raeburn 473:
1.4 raeburn 474: my $js = &blockingmenu_javascript($blockcount);
1.1 raeburn 475:
1.4 raeburn 476: $r->print(
477: &Apache::loncommon::start_page('Blocking communication/content access',$js).
478: &Apache::lonhtmlcommon::breadcrumbs('Blocking communication/content access'));
1.1 raeburn 479:
480: my $usertype;
481: if ($crstype eq 'Community') {
482: $usertype = 'members';
483: } else {
484: $usertype = 'students';
485: }
486: my $lctype = lc($crstype);
1.4 raeburn 487: my %lt=&Apache::lonlocal::texthash (
488: 'cbds' => 'Blocking communication and/or content access during exams',
489: 'prev' => "For the duration of an exam, or a timed quiz, students in this course can be prevented from:",
490: 'blca' => "Blocks can potentially interrupt legitimate communication between $usertype who are also both enrolled in a different LON-CAPA $lctype.",
1.11 ! bisitz 491: 'pobl' => "Portfolio blocking can impact a student's ability to complete assignments in courses besides your own. Please use this feature wisely.",
1.4 raeburn 492: 'actt' => "Action to take:",
493: 'addn' => 'Add new blocking event',
494: 'mexb' => 'Modify existing blocking event(s)',
495: 'ncbc' => 'There are no blocking events currently saved.',
496: 'stor' => 'Save',
1.1 raeburn 497: );
498:
499: my %ltext = &Apache::lonlocal::texthash(
1.4 raeburn 500: 'type' => 'Type',
501: 'defs' => 'Defined Start/End',
502: 'trig' => 'Triggered by Activating Timer',
1.1 raeburn 503: 'setb' => 'Set by',
504: 'even' => 'Event',
505: 'blck' => 'Blocked?',
506: 'star' => 'Start',
1.4 raeburn 507: 'endd' => 'End',
508: 'chda' => 'Choose dates',
509: 'chtr' => 'Choose trigger',
510: 'when' => 'When using defined start/end times for an event, please set dates carefully.',
511: 'yes' => 'Yes',
512: 'no' => 'No',
1.1 raeburn 513: );
514:
515: $r->print('<h3>'.$lt{'cbds'}.'</h3>');
516:
1.4 raeburn 517: # ---------------------------------------------------- Get Time Limit parameters
518: my %intervals = &get_timed_items();
519:
520: # -------------------------------------------- Display information about changes
1.1 raeburn 521: if ($env{'form.action'} eq 'store') {
1.4 raeburn 522: $r->print($storeresult);
523: } else {
524: $r->print(
525: $lt{'prev'}.
526: '<ul>'."\n".
527: '<li>'.&mt("displaying LON-CAPA messages sent by other $usertype in the $lctype").'</li>'."\n".
528: '<li>'.&mt("displaying or posting to LON-CAPA discussion boards or live chat in the $lctype").'</li>'."\n".
529: '<li>'.&mt('accessing content in LON-CAPA portfolios or blogs').'</li>'."\n".
1.6 raeburn 530: '<li>'.&mt("generating printouts of $lctype content").'</li>'.
1.4 raeburn 531: '<li>'.&mt("accessing $lctype content in specified folders or resources").'</li>'.
532: '</ul>'.
533: '<p class="LC_warning">'.$lt{'blca'}.'<br />'.$lt{'pobl'}.'</p>'
534: );
1.1 raeburn 535: }
536:
1.4 raeburn 537: # ------------------------ Choose between modifying existing block or adding new
538: $r->print('<form name="blockform" method="post" action="/adm/setblock?action=store">');
539: if ($blockcount > 0) {
540: $r->print(<<"END");
541: <div class="LC_left_float">
542: <fieldset><legend>$lt{'actt'}</legend>
543: <span class="LC_nobreak">
544: <label><input type="radio" name="blockaction" value="modify" id="modifyaction"
545: onclick="toggleAddModify();" checked="checked" />$lt{'mexb'}</label>
546: </span>
547: <br />
548: <span class="LC_nobreak">
549: <label><input type="radio" name="blockaction" value="add" id="addaction"
550: onclick="toggleAddModify();" />$lt{'addn'}</label>
551: </span>
552: </fieldset>
553: </div>
554: <br clear="all" />
555: <div id="showadd" style="display:none">
556: END
557: } else {
558: $r->print($lt{'ncbc'}.'<br /><br />'.
559: '<h4>'.$lt{'addn'}.'</h4>'.
560: '<input type="hidden" name="blockaction" value="add" />');
561: }
562: my ($navmap,$errormsg) =
563: &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
1.1 raeburn 564:
1.4 raeburn 565: # --------------------------------------------- Interface for adding a new block
566: &display_addblocker_table($r,$blockcount,\%ltext,\%intervals,
567: $navmap,$errormsg);
568:
569: # ------------------------------------------------- Interface for existig blocks
1.1 raeburn 570: if ($blockcount > 0) {
1.4 raeburn 571: $r->print('</div>');
572: &display_blocker_status($r,\%records,\%ltext,\%intervals,
573: $navmap,$errormsg,$blockcount);
1.1 raeburn 574: }
575: $r->print(<<"END");
576: <br />
577: <input type ="submit" value="$lt{'stor'}" />
578: </form>
579: END
580: $r->print(&Apache::loncommon::end_page());
581: return OK;
582: }
583:
1.4 raeburn 584: sub get_timed_items {
585: my ($cdom,$cnum) = @_;
586: my ($cid,%intervals);
587: if ($cdom eq '' || $cnum eq '') {
588: $cid = $env{'request.course.id'};
589: $cdom = $env{'course.'.$cid.'.domain'};
590: $cnum = $env{'course.'.$cid.'.num'};
591: } else {
592: $cid = $cdom.'_'.$cnum;
593: }
594: if ($cid eq '') {
595: return %intervals;
596: }
597: my $resourcedata=&Apache::lonparmset::readdata($cnum,$cdom);
598: if (ref($resourcedata) eq 'HASH') {
599: foreach my $key (keys(%{$resourcedata})) {
600: if ($key =~ /^\Q$cid\E(.+)\.0\.interval$/) {
601: my $middle = $1;
602: if ($middle eq '') {
603: $intervals{'course'}{'all'} = $resourcedata->{$key};
604: } elsif ($middle =~ /^\.\[(\w+)\]$/) {
605: $intervals{'course'}{'secgrp'}{$1} = $resourcedata->{$key};
606: } elsif ($middle =~ /^\.\[useropt\:($match_username\:$match_domain)\]$/) {
607: $intervals{'course'}{'users'}{$1} = $resourcedata->{$key};
608: } elsif ($middle =~ /^\.(.+)\Q___(all)\E$/) {
609: my $inner = $1;
610: if ($inner =~ /^\[(\w+)\]\.([^\]]+)$/) {
611: $intervals{'map'}{$2}{'secgrp'}{$1} = $resourcedata->{$key};
612: } elsif ($inner =~ /^\[useropt\:($match_username\:$match_domain)\]\.([^\]]+)$/) {
613: $intervals{'map'}{$2}{'users'}{$1} = $resourcedata->{$key};
614: } else {
615: $intervals{'map'}{$inner}{'all'} = $resourcedata->{$key};
616: }
617: } elsif ($middle =~ /^\.\[(\w+)\]\.([^\]]+)$/) {
618: $intervals{'resource'}{$2}{'secgrp'}{$1} = $resourcedata->{$key};
619: } elsif ($middle =~ /^\.\[useropt\:($match_username\:$match_domain)\]\.([^\]]+)$/) {
620: $intervals{'resource'}{$2}{'users'}{$1} = $resourcedata->{$key};
621: } else {
622: my ($symb) = ($middle =~ /^\.(.+)$/);
623: $intervals{'resource'}{$symb}{'all'} = $resourcedata->{$key};
624: }
625: }
626: }
627: }
628: return %intervals;
629: }
630:
1.1 raeburn 631: sub blockstore {
1.4 raeburn 632: my ($crstype,$blockcount) = @_;
1.1 raeburn 633: my %lt=&Apache::lonlocal::texthash(
634: 'tfcm' => 'The following changes were made',
1.4 raeburn 635: 'ncwm' => 'No changes were made.',
636: 'unna' => 'Unable to retrieve contents of course.',
1.1 raeburn 637: );
638: my %adds = ();
639: my %removals = ();
640: my %cancels = ();
641: my $modtotal = 0;
642: my $canceltotal = 0;
643: my $addtotal = 0;
1.4 raeburn 644: my $changestotal = 0;
645: my $addtimer = 0;
1.1 raeburn 646: my %blocking = ();
1.10 raeburn 647: my (%map_url,%resource_symb,%titles,$output);
1.4 raeburn 648: $output = '<h3>'.$lt{'head'}.'</h3>';
649: if ($env{'form.blockaction'} eq 'modify') {
650: foreach my $envkey (keys(%env)) {
651: if ($envkey =~ m/^form\.action_(\d+)$/) {
652: if ($env{$envkey} eq 'modify') {
653: $adds{$1} = 1;
654: $removals{$1} = 1;
655: } elsif ($env{$envkey} eq 'cancel') {
656: $cancels{$1} = $1;
657: unless ( defined($removals{$1}) ) {
658: $removals{$1} = 1;
659: $canceltotal ++;
660: }
661: }
662: }
1.1 raeburn 663: }
1.4 raeburn 664: } elsif ($env{'form.blockaction'} eq 'add') {
665: $adds{$blockcount} = 1;
1.1 raeburn 666: }
1.4 raeburn 667: my ($navmap,$errormsg) =
668: &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
669: unless (ref($navmap)) {
670: $output = $lt{'unna'}.' '.$lt{'ncwm'}.'</br>';
671: return ($changestotal,$output);
672: }
1.10 raeburn 673: &Apache::loncourserespicker::enumerate_course_contents($navmap,\%map_url,\%resource_symb,\%titles,'examblock');
1.1 raeburn 674: foreach my $key (keys(%removals)) {
675: my $hashkey = $env{'form.key_'.$key};
676: &Apache::lonnet::del('comm_block',["$hashkey"],
677: $env{'course.'.$env{'request.course.id'}.'.domain'},
678: $env{'course.'.$env{'request.course.id'}.'.num'}
679: );
680: }
681: foreach my $key (keys(%adds)) {
682: unless ( defined($cancels{$key}) ) {
1.4 raeburn 683: my $newkey;
684: if ($env{'form.firstaccess_'.$key}) {
685: my $interval =
686: &HTML::Entities::decode($env{'form.firstaccess_'.$key});
687: if ($interval ne '') {
688: if ($interval eq 'course') {
689: $newkey = 'firstaccess____'.$interval;
690: } elsif ($interval =~ /___\d+___/) {
691: my ($map,$resid,$url) =
692: &Apache::lonnet::decode_symb($interval);
693: if (&Apache::lonnet::is_on_map($url)) {
694: $newkey = 'firstaccess____'.$interval;
695: }
696: } elsif (&Apache::lonnet::is_on_map($interval)) {
697: $newkey = 'firstaccess____'.$interval;
698: }
699: if ($newkey ne '') {
700: unless (defined($removals{$key})) {
701: $addtimer ++;
702: }
703: }
704: }
705: } else {
706: my ($newstart,$newend) = &get_dates_from_form($key);
707: $newkey = $newstart.'____'.$newend;
708: }
709: if ($newkey ne '') {
710: my ($blocktypes,$blockdocs) =
711: &get_block_choices($key,\%map_url,\%resource_symb);
712: $blocking{$newkey} = {
1.1 raeburn 713: setter => $env{'user.name'}.':'.$env{'user.domain'},
714: event => &escape($env{'form.title_'.$key}),
715: blocks => $blocktypes,
716: };
1.4 raeburn 717: if ($blockdocs) {
718: &check_release_required('docs');
719: }
1.5 raeburn 720: if (ref($blocktypes) eq 'HASH') {
721: if ($blocktypes->{'printout'} eq 'on') {
722: &check_release_required('printout');
723: }
724: }
1.4 raeburn 725: if (exists($removals{$key})) {
726: $modtotal ++;
727: } else {
728: $addtotal ++;
729: }
730: } else {
731: if ($env{'form.toggle_'.$key} eq 'timer') {
732: $output .= '<p class="LC_warning">'.
733: &mt('Invalid trigger for new blocking event').
734: '</p>';
735: } else {
736: $output .= '<p class="LC_warning">'.
737: &mt('No date range found for new blocking event').
738: '</p>';
739: }
740: }
1.1 raeburn 741: }
742: }
743: if ($addtotal + $modtotal > 0) {
744: &Apache::lonnet::put('comm_block',\%blocking,
745: $env{'course.'.$env{'request.course.id'}.'.domain'},
746: $env{'course.'.$env{'request.course.id'}.'.num'}
747: );
1.4 raeburn 748: if ($addtimer) {
749: &check_release_required('timer');
750: }
1.1 raeburn 751: }
1.4 raeburn 752: $changestotal = $canceltotal + $modtotal + $addtotal;
753: if ($changestotal > 0) {
754: &Apache::lonnet::devalidate_cache_new('comm_block',
755: $env{'request.course.id'});
756: $output .= $lt{'tfcm'}.'<ul>';
1.1 raeburn 757: if ($canceltotal > 0) {
1.4 raeburn 758: $output .= '<li>'.
759: &mt('[quant,_1,blocking event was,blocking events were] removed.',
760: $canceltotal).
761: '</li>';
1.1 raeburn 762: }
763: if ($modtotal > 0) {
1.4 raeburn 764: $output .= '<li>'.
765: &mt('[quant,_1,blocking event was,blocking events were] modified.',
766: $modtotal).
767: '</li>';
1.1 raeburn 768: }
769: if ($addtotal > 0) {
1.4 raeburn 770: $output .= '<li>'.
771: &mt('[quant,_1,blocking event was,blocking events were] added.',
772: $addtotal).
773: '</li>';
1.1 raeburn 774: }
1.4 raeburn 775: $output .= '</ul>';
1.1 raeburn 776: } else {
1.4 raeburn 777: $output .= $lt{'ncwm'};
778: }
779: $output .= '<br />';
780: return ($changestotal,$output);
781: }
782:
1.1 raeburn 783: sub get_dates_from_form {
784: my $item = shift;
785: my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$item);
786: my $enddate = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$item);
787: return ($startdate,$enddate);
788: }
789:
790: sub get_blockdates {
1.4 raeburn 791: my ($records) = @_;
792: my $blockcount = 0;
1.1 raeburn 793: %{$records} = &Apache::lonnet::dump('comm_block',
794: $env{'course.'.$env{'request.course.id'}.'.domain'},
795: $env{'course.'.$env{'request.course.id'}.'.num'}
796: );
1.4 raeburn 797: $blockcount = keys(%{$records});
1.1 raeburn 798:
799: if ((keys(%{$records}))[0] =~ /^error: 2 /) {
1.4 raeburn 800: $blockcount = 0;
1.1 raeburn 801: }
1.4 raeburn 802: return $blockcount;
1.1 raeburn 803: }
804:
805: sub get_block_choices {
1.4 raeburn 806: my ($item,$map_ref,$symb_ref) = @_;
1.1 raeburn 807: my $blocklist;
1.4 raeburn 808: my $blockdocs;
1.1 raeburn 809: my ($typeorder,$types) = &blocktype_text();
810: foreach my $type (@{$typeorder}) {
1.4 raeburn 811: if ($type eq 'docs') {
812: if ($env{'form.'.$type.'_'.$item}) {
813: $blocklist->{$type} = {};
814: if ($env{'form.docs_resources_'.$item}) {
815: $env{'form.docs_resources_'.$item} =~ s/,$//;
816: if (ref($symb_ref) eq 'HASH') {
817: my %resources = map { $symb_ref->{$_} => 1; }
818: (split(/,/,$env{'form.docs_resources_'.$item}));
819: $blocklist->{$type}->{resources} = \%resources;
820: if (keys(%resources) > 0) {
821: $blockdocs = 1;
822: }
823: }
824: }
825: if ($env{'form.docs_maps_'.$item}) {
826: $env{'form.docs_maps_'.$item} =~ s/,$//;
827: if (ref($map_ref) eq 'HASH') {
828: my %maps = map { $map_ref->{$_} => 1; }
829: (split(/,/,$env{'form.docs_maps_'.$item}));
830: $blocklist->{$type}->{maps} = \%maps;
831: if (keys(%maps) > 0) {
832: $blockdocs = 1;
833: }
834: }
835: }
836: }
837: } else {
838: if ($env{'form.'.$type.'_'.$item}) {
839: $blocklist->{$type} = 'on';
840: } else {
841: $blocklist->{$type} = 'off';
842: }
843: }
844: }
845: return ($blocklist,$blockdocs);
846: }
847:
848: sub check_release_required {
849: my ($value) = @_;
850: my $needsrelease = $Apache::lonnet::needsrelease{'course:commblock:'.$value};
851: if ($needsrelease) {
852: my $curr_required =
853: $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
854: if ($curr_required eq '') {
855: &Apache::lonnet::update_released_required($needsrelease);
1.1 raeburn 856: } else {
1.4 raeburn 857: my ($currmajor,$currminor) = split(/\./,$curr_required);
858: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
859: if (($currmajor < $needsmajor) ||
860: ($currmajor == $needsmajor && $currminor < $needsminor)) {
861: &Apache::lonnet::update_released_required($needsrelease);
862: }
1.1 raeburn 863: }
864: }
1.4 raeburn 865: return;
1.1 raeburn 866: }
867:
868: sub display_blocker_status {
1.4 raeburn 869: my ($r,$records,$ltext,$intervals,$navmap,$errormsg,$blockcount) = @_;
1.1 raeburn 870: my $parmcount = 0;
1.10 raeburn 871: my (%map_url,%resource_symb,%titles,%lookups);
872: &Apache::loncourserespicker::enumerate_course_contents($navmap,\%map_url,\%resource_symb,\%titles,'examblock');
1.4 raeburn 873: %{$lookups{'maps'}} = reverse(%map_url);
874: %{$lookups{'resources'}} = reverse(%resource_symb);
1.1 raeburn 875: my %lt = &Apache::lonlocal::texthash(
876: 'modi' => 'Modify',
1.4 raeburn 877: 'dele' => 'Delete',
878: 'noch' => 'No change',
1.1 raeburn 879: );
1.4 raeburn 880: $r->print('<div id="showmodify" style="display:block">'.
881: &Apache::loncommon::start_data_table());
1.1 raeburn 882: $r->print(<<"END");
883: <tr>
1.4 raeburn 884: <th></th>
885: <th>$ltext->{'type'}</th>
1.1 raeburn 886: <th>$ltext->{'even'}</th>
887: <th>$ltext->{'blck'}</th>
888: </tr>
889: END
890: foreach my $record (sort(keys(%{$records}))) {
1.4 raeburn 891: my $jschg =
892: 'javascript:window.document.forms['. "'blockform'".']'.
893: '.elements['."'action_$parmcount'".'][0].checked=true;';
894: my $onchange = 'onfocus="'.$jschg.'"';
1.1 raeburn 895: my ($setuname,$setudom,$title,$blocks) =
896: &Apache::loncommon::parse_block_record($$records{$record});
897: $title = &HTML::Entities::encode($title,'"<>&');
1.4 raeburn 898: my $blockid = &HTML::Entities::encode($record,'"<>&');
1.1 raeburn 899: my $settername =
900: &Apache::loncommon::aboutmewrapper(
901: &Apache::loncommon::plainname($setuname,$setudom),
902: $setuname,$setudom);
903: $r->print(&Apache::loncommon::start_data_table_row());
1.4 raeburn 904: $r->print(<<"ACT");
905:
906: <td valign="middle"><span class="LC_nobreak"><label>
907: <input type="radio" name="action_$parmcount" value="modify" />$lt{'modi'}
908: </label></span><br />
909: <span class="LC_nobreak"><label>
910: <input type="radio" name="action_$parmcount" value="cancel" />$lt{'dele'}
911: </label></span><br />
912: <span class="LC_nobreak"><label>
913: <input type="radio" name="action_$parmcount" id="nochange_$parmcount"
914: value="nochange" checked="checked" />$lt{'noch'}
915: </label></span>
916: </td>
917: ACT
918: my ($start,$end,$startform,$endform);
919: if ($record =~ /^(\d+)____(\d+)$/) {
920: ($start,$end) = split(/____/,$record);
921: $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.
922: $parmcount,$start,$onchange);
923: $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.
924: $parmcount,$end,$onchange);
925: $r->print('<td><fieldset><legend>'.$ltext->{'defs'}.'</legend>'.
926: $ltext->{'star'}.': '.$startform.'<br />'.
927: $ltext->{'endd'}.': '.$endform.'</fieldset></td>');
928: } elsif ($record =~ /^firstaccess____(.+)$/) {
929: my $item = $1;
930: my ($itemname,$iteminfo,$skipdetails);
931: my $type = 'map';
932: my $url;
933: if ($item eq 'course') {
934: $type = 'course';
935: } elsif ($item =~ /___\d+___/) {
936: $type = 'resource';
937: (my $map, my $resid, $url) = &Apache::lonnet::decode_symb($item);
938: } else {
939: $url = $item;
940: }
941: $r->print('<td><fieldset><legend>'.$ltext->{'trig'}.'</legend>');
942: if ($type eq 'course') {
943: $itemname = &mt('Timer for all items in course.');
944: } else {
945: if (&Apache::lonnet::is_on_map($url)) {
946: if ($type eq 'map') {
947: if (ref($navmap)) {
948: my $res = $navmap->getResourceByUrl($item);
949: my $title = $res->compTitle();
950: $itemname = &mt('Timer for all items in folder: [_1]',
951: '<span style="font-style:italic">'.
952: $title.'</span>');
953: }
954: } else {
955: if (ref($navmap)) {
956: my $res = $navmap->getBySymb($item);
957: my $title = $res->compTitle();
958: $itemname = &mt('Timer for resource: [_1]',
959: '<span style="font-style:italic">'.
960: $title.'</span>');
961: }
962: }
963: if (ref($navmap)) {
964: my $path = &show_timer_path($type,$item);
965: if ($path) {
966: $iteminfo = ' <span style="font-size:90%;">'.
967: &mt('(in: [_1])',$path).
968: '</span>';
969: }
970: }
971: } else {
972: $skipdetails = 1;
973: $itemname = '<span style="LC_warning">'.
974: &mt('Timer folder/resource not in course').
975: '</span>';
976: }
977: }
978: if ((!$skipdetails) && (ref($intervals) eq 'HASH')) {
979: if (ref($intervals->{$type}) eq 'HASH') {
980: $iteminfo .= &trigger_details_toggle($parmcount).
981: '<ul id="trigdetails_'.$parmcount.'" style="display:none">';
982: if ($type eq 'course') {
983: foreach my $scope (keys(%{$intervals->{$type}})) {
984: if ($scope eq 'all') {
985: $iteminfo .= '<li>'.&mt('All users -- time limit: [_1]',
986: &convlim($intervals->{$type}->{$scope})).'</li>';
987: } elsif ($scope eq 'secgrp') {
988: if (ref($intervals->{$type}->{$scope}) eq 'HASH') {
989: $iteminfo .= '<li>'.&mt('Sections/groups').'<ul>';
990: foreach my $item (sort(keys(%{$intervals->{$type}->{$scope}}))) {
991: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',$item,
992: &convlim($intervals->{$type}->{$scope}->{$item})).
993: '</li>';
994: }
995: $iteminfo .= '</ul></li>';
996: }
997: } elsif ($scope eq 'users') {
998: if (ref($intervals->{$type}->{$scope}) eq 'HASH') {
999: $iteminfo .= '<li>'.&mt('Users').'<ul>';
1000: foreach my $item (sort(keys(%{$intervals->{$type}->{$scope}}))) {
1001: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',
1002: &convlim($item,$intervals->{$type}->{$scope}->{$item})).
1003: '</li>';
1004: }
1005: $iteminfo .= '</ul></li>';
1006: }
1007: }
1008: }
1009: } elsif (($type eq 'map') || ($type eq 'resource')) {
1010: if (ref($intervals->{$type}->{$item}) eq 'HASH') {
1011: foreach my $scope (keys(%{$intervals->{$type}->{$item}})) {
1012: if ($scope eq 'all') {
1013: $iteminfo .= '<li>'.&mt('All users -- time limit: [_1]',
1014: &convlim($intervals->{$type}->{$item}->{$scope})).
1015: '</li>';
1016: } elsif ($scope eq 'secgrp') {
1017: if (ref($intervals->{$type}->{$item}->{$scope}) eq 'HASH') {
1018: $iteminfo .= '<li>'.&mt('Sections/groups').'<ul>';
1019: foreach my $sec (sort(keys(%{$intervals->{$type}->{$item}->{$scope}}))) {
1020: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',$sec,
1021: &convlim($intervals->{$type}->{$item}->{$scope}->{$sec})).
1022: '</li>';
1023: }
1024: $iteminfo .= '</ul></li>';
1025: }
1026: } elsif ($scope eq 'users') {
1027: if (ref($intervals->{$type}->{$item}->{$scope}) eq 'HASH') {
1028: $iteminfo .= '<li>'.&mt('Users').'<ul>';
1029: foreach my $user (sort(keys(%{$intervals->{$type}->{$item}->{$scope}}))) {
1030: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',$user,
1031: &convlim($intervals->{$type}->{$item}->{$scope}->{$user})).
1032: '</li>';
1033: }
1034: $iteminfo .= '</ul></li>';
1035: }
1036: }
1037: }
1038: }
1039: }
1040: $iteminfo .= '</ul>';
1041: }
1.1 raeburn 1042: }
1.4 raeburn 1043: $r->print(&create_interval_form($intervals,$parmcount,$navmap,$item,$jschg,
1044: $itemname,$iteminfo).'</fieldset></td>');
1.1 raeburn 1045: }
1046: $r->print(<<"END");
1.4 raeburn 1047: <td>
1048: <input type="text" name="title_$parmcount" size="15" value="$title" onfocus="$jschg" />
1049: <input type="hidden" name="key_$parmcount" value="$blockid" />
1050: <br />
1051: <br />
1052: $ltext->{'setb'}: $settername
1053: </td>
1.1 raeburn 1054: END
1.4 raeburn 1055: $r->print('<td>'.&blocker_checkboxes($parmcount,$blocks,$jschg,\%lookups).'</td>'.
1056: &Apache::loncommon::end_data_table_row());
1.1 raeburn 1057: $parmcount++;
1058: }
1059: $r->print(<<"END");
1060: </table>
1.4 raeburn 1061: </div>
1.1 raeburn 1062: END
1.4 raeburn 1063: return;
1064: }
1065:
1066: sub convlim {
1067: my ($timelimit) = @_;
1068: my @order = ('days','hours','minutes','seconds');
1069: my %catlimits = (
1070: days => 86400,
1071: hours => 3600,
1072: minutes => 60,
1073: );
1074: my @toshow;
1075: foreach my $cat (@order) {
1076: if ($cat eq 'seconds') {
1.7 raeburn 1077: if ($timelimit > 0) {
1078: push(@toshow,&mt("[_1] $cat",$timelimit));
1079: }
1.4 raeburn 1080: } elsif ($timelimit >= $catlimits{$cat}) {
1081: my $val = int($timelimit/$catlimits{$cat});
1082: if ($val > 0) {
1083: push(@toshow,&mt("[_1] $cat",$val));
1084: }
1.9 raeburn 1085: $timelimit -= $val*$catlimits{$cat};
1.4 raeburn 1086: }
1087: }
1088: my $output = join(', ',@toshow);
1089: return $output;
1.1 raeburn 1090: }
1091:
1092: sub display_addblocker_table {
1.4 raeburn 1093: my ($r,$parmcount,$ltext,$intervals,$navmap,$errormsg) = @_;
1094: return unless ((ref($ltext) eq 'HASH') && (ref($intervals) eq 'HASH'));
1.1 raeburn 1095: my $start = time;
1096: my $end = $start + (60 * 60 * 2); #Default is an exam of 2 hours duration.
1.4 raeburn 1097: my $onchange = 'onfocus="javascript:window.document.forms['.
1098: "'blockform'].elements['addaction'].".
1.1 raeburn 1099: 'checked=true;"';
1.4 raeburn 1100: my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.
1101: $parmcount,$start,$onchange);
1102: my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.
1103: $parmcount,$end,$onchange);
1.1 raeburn 1104: my %lt = &Apache::lonlocal::texthash(
1105: 'exam' => 'e.g., Exam 1',
1106: );
1.4 raeburn 1107: my $intervalform = &create_interval_form($intervals,$parmcount,$navmap);
1108: if ($intervalform ne '') {
1109: $intervalform = '<fieldset>'.
1110: '<legend>'.$ltext->{'chtr'}.'</legend>'.
1111: $intervalform.
1112: '</fieldset>';
1113: }
1.1 raeburn 1114: $r->print(&Apache::loncommon::start_data_table());
1115: $r->print(<<"END");
1116: <tr>
1.4 raeburn 1117: <th>$ltext->{'type'}</th>
1.1 raeburn 1118: <th>$ltext->{'even'} $lt{'exam'}</th>
1119: <th>$ltext->{'blck'}</th>
1120: </tr>
1121: END
1.4 raeburn 1122: $r->print(&Apache::loncommon::start_data_table_row().'<td>');
1.1 raeburn 1123: $r->print(<<"END");
1.4 raeburn 1124: <span class="LC_nobreak"><label><input type="radio" id="toggle_startstop"
1125: name="toggle_$parmcount" value="startstop" onclick="showBlockType();" checked="checked" />
1126: $ltext->{'defs'}</label></span>
1127: <span class="LC_nobreak"><label><input type="radio" id="toggle_timer" name="toggle_$parmcount"
1128: value="timer" onclick="showBlockType();" />$ltext->{'trig'}</label></span><br />
1129: <div id="show_startstop" style="display:block">
1130: <fieldset><legend>$ltext->{'chda'}</legend>
1131: $ltext->{'star'}: $startform<br />$ltext->{'endd'}: $endform</fieldset>
1132: <span class="LC_warning">$ltext->{'when'}</span></div>
1133: <div id="show_timer" style="display:none">$intervalform</div>
1134: </td>
1.1 raeburn 1135: <td><input type="text" name="title_$parmcount" size="15" value="" /></td>
1136: END
1.4 raeburn 1137: $r->print('<td>'.&blocker_checkboxes($parmcount).'</td>'.
1138: &Apache::loncommon::end_data_table_row().
1139: &Apache::loncommon::end_data_table()."\n".
1140: '<br />');
1141: return;
1142: }
1143:
1144: sub blocker_checkboxes {
1145: my ($parmcount,$blocks,$jschg,$lookups) = @_;
1146: my ($typeorder,$types) = &blocktype_text();
1147: my $numinrow = 2;
1148: my %currdocs;
1149: my $output = '<table>';
1150: for (my $i=0; $i<@{$typeorder}; $i++) {
1151: my $block = $typeorder->[$i];
1152: my ($clickaction,$blockstatus);
1153: if ($jschg) {
1154: $clickaction = $jschg;
1155: }
1156: if ($block eq 'docs') {
1157: if ((ref($blocks) eq 'HASH') && (ref($lookups) eq 'HASH')) {
1158: if (ref($blocks->{$block}) eq 'HASH') {
1159: if (keys(%{$blocks->{$block}}) > 0) {
1160: $blockstatus = 'checked="checked"';
1161: foreach my $key (sort(keys(%{$blocks->{$block}}))) {
1162: if (ref($blocks->{$block}{$key}) eq 'HASH') {
1163: my @current = ();
1164: foreach my $item (keys(%{$blocks->{$block}{$key}})) {
1165: if ($lookups->{$key}{$item}) {
1166: push(@current,$lookups->{$key}{$item});
1167: }
1168: }
1169: if (@current > 0) {
1170: @current=sort { $a <=> $b } (@current);
1171: $currdocs{$key} = join(',',@current);
1172: }
1173: }
1174: }
1175: }
1176: }
1177: }
1178: $clickaction .= 'javascript:resblockinfo('."'$parmcount'".');';
1179: } else {
1180: if (ref($blocks) eq 'HASH') {
1181: if ($blocks->{$block} eq 'on') {
1182: $blockstatus = 'checked="checked"';
1183: }
1184: }
1185: }
1186: my $rem = $i%($numinrow);
1187: if ($rem == 0) {
1188: if ($i > 0) {
1189: $output .= '</tr>';
1190: }
1191: $output .= '<tr>';
1192: }
1193: if ($i == scalar(@{$typeorder})-1) {
1194: my $colsleft = $numinrow-$rem;
1195: if ($colsleft > 1) {
1196: $output .= '<td colspan="'.$colsleft.'">';
1197: } else {
1198: $output .= '<td>';
1199: }
1200: } else {
1201: $output .= '<td>';
1202: }
1203: my $item = $block.'_'.$parmcount;
1204: if ($clickaction) {
1205: $clickaction = ' onclick="'.$clickaction.'"';
1206: }
1207: if ($blockstatus) {
1208: $blockstatus = ' '.$blockstatus;
1209: }
1210: $output .= '<span class="LC_nobreak"><label>'."\n".
1211: '<input type="checkbox" id="'.$item.'" name="'.$item.'"'.
1212: $blockstatus.$clickaction.' value="1" />'.
1213: $types->{$block}.'</label></span>'."\n";
1214: if ($block eq 'docs') {
1215: if ($blockstatus ne '') {
1216: $output .= ' <a href="javascript:resblockinfo('."'$parmcount'".')">'.
1217: &mt('Details').'</a>';
1218: }
1219: }
1220: $output .= '<br /></td>';
1221: }
1222: $output .= '</tr></table>'.
1223: '<input type="hidden" name="docs_maps_'.$parmcount.'"'.
1224: ' id="docs_maps_'.$parmcount.'" value="'.$currdocs{'maps'}.'" />'.
1225: '<input type="hidden" name="docs_resources_'.$parmcount.'"'.
1226: ' id="docs_resources_'.$parmcount.'" value="'.$currdocs{'resources'}.'" />';
1227: return $output;
1228: }
1229:
1230: sub create_interval_form {
1231: my ($intervals,$parmcount,$navmap,$currkey,$jschg,$itemname,$iteminfo) = @_;
1232: return unless ((ref($intervals) eq 'HASH') && (ref($navmap)));
1233: my $intervalform;
1234: if (keys(%{$intervals}) > 0) {
1235: foreach my $type (sort(keys(%{$intervals}))) {
1236: if ($type eq 'course') {
1237: my ($checked,$clickaction);
1238: if ($currkey eq 'course') {
1239: $checked = ' checked="checked"';
1240: } elsif ($jschg) {
1241: $clickaction = ' onclick="'.$jschg.'"';
1242: }
1243: $intervalform .= '<label><input type="radio" name="firstaccess_'.$parmcount.
1244: '" value="course"'.$checked.$clickaction.' />';
1245: if ($currkey eq 'course') {
1246: $intervalform .= $itemname;
1247: } else {
1248: $intervalform .= &mt('Timer for all items in course');
1249: }
1250: $intervalform .= '</label>';
1251: if ($currkey eq 'course') {
1252: $intervalform .= $iteminfo;
1253: }
1254: $intervalform .= '<br />';
1255: } elsif ($type eq 'map') {
1256: if (ref($intervals->{$type}) eq 'HASH') {
1257: if (ref($navmap)) {
1258: foreach my $map (sort(keys(%{$intervals->{$type}}))) {
1259: my ($checked,$clickaction);
1260: if ($currkey eq $map) {
1261: $checked = ' checked="checked"';
1262: } elsif ($jschg) {
1263: $clickaction = ' onclick="'.$jschg.'"';
1264: }
1265: $intervalform .= '<label><input type="radio" name="firstaccess_'.$parmcount.
1266: '" value="'.&HTML::Entities::encode($map,'"<>&').'"'.
1267: $checked.$clickaction.' />';
1268: if ($currkey eq $map) {
1269: $intervalform .= $itemname.'</label>';
1270: } else {
1271: my $res = $navmap->getResourceByUrl($map);
1272: my $title = $res->compTitle();
1273: my $path;
1274: my $hierarchy = &show_timer_path($type,$map,$navmap);
1275: if ($hierarchy) {
1276: $path = ' <span style="font-size:90%;">'.
1277: &mt('(in: [_1])',$hierarchy).
1278: '</span>';
1279: }
1280: $intervalform .= &mt('Timer for all items in folder: [_1]',
1281: '<i>'.$title.'</i>').
1282: '</label>'.$path;
1283: }
1284: if ($currkey eq $map) {
1285: $intervalform .= $iteminfo;
1286: }
1287: $intervalform .= '<br />';
1288: }
1289: }
1290: }
1291: } elsif ($type eq 'resource') {
1292: if (ref($intervals->{$type}) eq 'HASH') {
1293: if (ref($navmap)) {
1294: foreach my $resource (sort(keys(%{$intervals->{$type}}))) {
1295: my ($checked,$clickaction);
1296: if ($currkey eq $resource) {
1297: $checked = ' checked="checked"';
1298: } elsif ($jschg) {
1299: $clickaction = ' onclick="'.$jschg.'"';
1300: }
1301: $intervalform .= '<label><input type="radio" name="firstaccess_'.$parmcount.
1302: '" value="'.&HTML::Entities::encode($resource,'"<>&').'"'.
1303: $checked.$clickaction.' />';
1304: if ($currkey eq $resource) {
1305: $intervalform .= $itemname.'</label>';
1306: } else {
1307: my $res = $navmap->getBySymb($resource);
1308: my $title = $res->compTitle();
1309: my $path;
1310: my $hierarchy = &show_timer_path($type,$resource,$navmap);
1311: if ($hierarchy) {
1312: $path = ' <span style="font-size:90%;">'.
1313: &mt('(in: [_1])',$hierarchy).
1314: '</span>';
1315: }
1316: $intervalform .= &mt('Timer for resource: [_1]','<i>'.$title.'</i>').
1317: '</label>'.
1318: $path;
1319: }
1320: if ($currkey eq $resource) {
1321: $intervalform .= $iteminfo;
1322: }
1323: $intervalform .= '<br />';
1324: }
1325: }
1326: }
1327: }
1328: }
1329: } else {
1330: if ($currkey ne '') {
1331: $intervalform = '<input type="radio" name="firstaccess_'.$parmcount.
1332: '" checked="checked" value="'.
1333: &HTML::Entities::encode($currkey,'"<>&').' />'.
1334: $itemname.'<br />';
1335: } else {
1336: $intervalform = &mt('No timed items defined.').' '.
1337: &mt('Use [_1]Settings[_2] to assign a timer, then return here.',
1338: '<a href="/adm/parmset">','</a>');
1339: }
1340: }
1341: return $intervalform;
1342: }
1343:
1344: sub trigger_details_toggle {
1345: my ($parmcount) = @_;
1346: return ' <span id="toggletext_'.$parmcount.'" class="LC_cusr_subheading LC_nobreak">'.
1347: '<a href="javascript:showTriggerDetails('."'$parmcount'".');" '.
1348: 'style="text-decoration: none;"><b>'.&mt('(More ...)').'</b></a></span>';
1349: }
1350:
1351: sub show_timer_path {
1352: my ($type,$item,$navmap) = @_;
1353: return unless(ref($navmap));
1354: my @pathitems;
1355: if ($type eq 'map') {
1.8 raeburn 1356: @pathitems =
1357: &Apache::loncommon::get_folder_hierarchy($navmap,$item);
1.4 raeburn 1358: } elsif ($type eq 'resource') {
1359: my ($map,$id,$resource) = &Apache::lonnet::decode_symb($item);
1.8 raeburn 1360: @pathitems =
1361: &Apache::loncommon::get_folder_hierarchy($navmap,$map,1);
1.4 raeburn 1362: }
1363: if (@pathitems) {
1364: return join(' » ',@pathitems);
1365: }
1.1 raeburn 1366: return;
1367: }
1368:
1369: sub blocktype_text {
1370: my %types = &Apache::lonlocal::texthash(
1371: 'com' => 'Messaging',
1372: 'chat' => 'Chat Room',
1373: 'boards' => 'Discussion',
1374: 'port' => 'Portfolio',
1375: 'groups' => 'Groups',
1376: 'blogs' => 'Blogs',
1.5 raeburn 1377: 'docs' => 'Content',
1378: 'printout' => 'Printouts',
1.1 raeburn 1379: );
1.5 raeburn 1380: my $typeorder = ['com','chat','boards','port','groups','blogs','printout','docs'];
1.1 raeburn 1381: return ($typeorder,\%types);
1382: }
1383:
1.4 raeburn 1384: sub blockingmenu_javascript {
1385: my ($blockcount) = @_;
1386: my %lt = &Apache::lonlocal::texthash (
1387: more => 'More ...',
1388: less => 'Less ...',
1389: );
1390: return <<ENDSCRIPT;
1391: <script type="text/javascript">
1392: // <![CDATA[
1393: function resblockinfo(blockid) {
1394: if (document.getElementById('docs_'+blockid).checked) {
1395: var resblockwin = null;
1396: var url = '/adm/setblock?action=showdocs&block='+blockid;
1397: if (!resblockwin || resblockwin.closed) {
1398: resblockwin=window.open(url,'blockingwin','height=480,width=600,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1399: }
1400: resblockwin.focus();
1401: } else {
1402: document.getElementById('docs_resources_'+blockid).value = '';
1403: document.getElementById('docs_maps_'+blockid).value = '';
1404: }
1405: return;
1406: }
1407:
1408: function showBlockType() {
1409: if (document.getElementById('toggle_startstop').checked == true) {
1410: document.getElementById('show_startstop').style.display='block';
1411: } else {
1412: document.getElementById('show_startstop').style.display='none';
1413: }
1414: if (document.getElementById('toggle_timer').checked == true) {
1415: document.getElementById('show_timer').style.display='block';
1416: } else {
1417: document.getElementById('show_timer').style.display='none';
1418: }
1419: return;
1420: }
1421:
1422: function toggleAddModify() {
1423: for (var i=0; i<document.blockform.blockaction.length; i++) {
1424: if (document.blockform.blockaction[i].checked) {
1425: if (document.blockform.blockaction[i].value == 'add') {
1426: document.getElementById('showadd').style.display='block';
1427: document.getElementById('showmodify').style.display='none';
1428: var blocktotal = $blockcount;
1429: if (blocktotal > 0) {
1430: for (var i=0; i<blocktotal; i++) {
1431: document.getElementById('nochange_'+i).checked = true;
1432: }
1433: }
1434: document.getElementById('showmodify').style.display='none';
1435: document.getElementById('showadd').style.display='block';
1436: } else {
1437: document.getElementById('showadd').style.display='none';
1438: document.getElementById('showmodify').style.display='block';
1439: }
1440: }
1441: }
1442: return;
1443: }
1444:
1445: function showTriggerDetails(item) {
1446: document.getElementById('trigdetails_'+item).style.display='block';
1447: document.getElementById('trigdetails_'+item).style.textAlign='left';
1448: document.getElementById('trigdetails_'+item).style.textFace='normal';
1449: document.getElementById('toggletext_'+item).innerHTML = '<a href="javascript:hideTriggerDetails('+item+');" style="text-decoration: none;"><b>($lt{'less'})</b></a>';
1450: return;
1451: }
1452:
1453: function hideTriggerDetails(item) {
1454: document.getElementById('trigdetails_'+item).style.display='none';
1455: document.getElementById('toggletext_'+item).innerHTML = '<a href="javascript:showTriggerDetails('+item+');" style="text-decoration: none;"><b>($lt{'more'})</b></a>';
1456: return;
1457: }
1458:
1459: // ]]>
1460: </script>
1461: ENDSCRIPT
1462:
1463: }
1464:
1.1 raeburn 1465: 1;
1466:
1467: __END__
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