1: # The LearningOnline Network
2: # Announce
3: #
4: # $Id: lonannounce.pm,v 1.77 2009/02/26 16:17:29 schafran Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::lonannounce;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::loncommon;
34: use Apache::lonhtmlcommon();
35: use Apache::lonlocal;
36: use Apache::lonnavmaps();
37: use Apache::lonrss();
38: use Apache::lonnet;
39: use HTML::Entities();
40: use LONCAPA qw(:match);
41: use DateTime;
42: use DateTime::TimeZone;
43:
44: my %todayhash;
45: my %showedcheck;
46:
47: sub editfield {
48: my ($r,$start,$end,$text)=@_;
49: # Deal with date forms
50: my $startdateform = &Apache::lonhtmlcommon::date_setter('anno',
51: 'startdate',
52: $start);
53: my $enddateform = &Apache::lonhtmlcommon::date_setter('anno',
54: 'enddate',
55: $end);
56: #my $help=&Apache::loncommon::help_open_menu('Calendar Add Announcement','Calendar_Add_Announcement',274,'Communication Tools');
57: my $help=&Apache::loncommon::help_open_topic('Calendar_Add_Announcement');
58:
59: my %lt=&Apache::lonlocal::texthash('annon' => 'Course Announcements',
60: 'post' => 'Post Announcement',
61: 'start' => 'Starting date',
62: 'end' => 'Ending date',
63: 'incrss' => 'Include in course RSS newsfeed');
64:
65: $r->print(<<ENDFORM);
66: <h2>$lt{'annon'} $help</h2>
67: <form name="anno" method="post">
68: <input type="hidden" value='' name="action" />
69: <table><tr><td>$lt{'start'}:</td><td>$startdateform</td></tr>
70: <tr><td>$lt{'end'}:</td><td>$enddateform</td></tr></table>
71: <textarea name="msg" rows="4" cols="60">$text</textarea>
72: <br />
73: <label><input type="checkbox" name="rsspost" /> $lt{'incrss'}</label>
74: <br /><input type="button" onClick="trysubmit()" value="$lt{'post'}" /><hr />
75: ENDFORM
76: }
77:
78: sub readcalendar {
79: my $courseid=shift;
80: my $coursenum=$env{'course.'.$courseid.'.num'};
81: my $coursedom=$env{'course.'.$courseid.'.domain'};
82: if ($coursenum eq '' || $coursedom eq '') {
83: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
84: if ($coursenum eq '' && exists($courseinfo{'num'})) {
85: $coursenum = $courseinfo{'num'};
86: }
87: if ($coursedom eq '' && exists($courseinfo{'domain'})) {
88: $coursedom = $courseinfo{'domain'};
89: }
90: }
91:
92: my %thiscal=&Apache::lonnet::dump('calendar',$coursedom,$coursenum);
93: my %returnhash=();
94: foreach my $item (keys(%thiscal)) {
95: unless (($item=~/^error\:/) || ($thiscal{$item}=~/^error\:/)) {
96: my ($start,$end)=split('_',$item);
97: $returnhash{join("\0",$courseid,$start,$end)}=$thiscal{$item};
98: }
99: }
100: my $can_see_hidden = ($env{'request.role.adv'} &&
101: ($courseid eq $env{'request.course.id'}));
102:
103: my $navmap;
104: if ($courseid eq $env{'request.course.id'}) {
105: $navmap = Apache::lonnavmaps::navmap->new();
106: }
107:
108: my $resourcedata=
109: &Apache::lonnet::get_courseresdata($coursenum,$coursedom);
110: if (ref($resourcedata) ne 'HASH') {
111: return %returnhash;
112: }
113: foreach my $thiskey (keys(%$resourcedata)) {
114: if ($resourcedata->{$thiskey.'.type'}=~/^date/) {
115: my ($course,$middle,$part,$name)=
116: ($thiskey=~/^(\Q$courseid\E)\.(?:(.+)\.)*([\w\s]+)\.(\w+)$/);
117:
118: my %data = ( 'section' => &mt('All Students'));
119: if ($middle=~/^\[(.*)\]\./) {
120: my $sec=$1;
121: # if we have a section don't show ones that aren't ours
122: if ($env{'request.course.sec'} &&
123: $env{'request.course.sec'} ne $sec) { next; }
124: # if a student without a section don't show any section ones
125: if (!$env{'request.role.adv'} &&
126: !$env{'request.course.sec'}) { next; }
127: $data{'section'}=&mt('Group/Section').': '.$1;
128: $middle=~s/^\[(.*)\]\.//;
129: }
130: $middle=~s/\.$//;
131: $data{'realm'}=&mt('All Resources');
132: if ($middle eq '___(all)') {
133: if (!$can_see_hidden && !$navmap) {
134: next;
135: }
136: } elsif ($middle=~/^(.+)\_\_\_\(all\)$/) {
137: my $map_url=$1;
138: if (!$can_see_hidden && !$navmap) {
139: next;
140: }
141: if (!$can_see_hidden) {
142: my $res = $navmap->getResourceByUrl($map_url);
143: if ($res && $res->randomout()) {
144: next;
145: }
146: }
147: $data{'realm'}=&mt('Folder/Map');
148: $data{'url'} = $map_url;
149: } elsif ($middle) {
150: if (!$can_see_hidden && !$navmap) {
151: next;
152: }
153: if (!$can_see_hidden) {
154: my $res = $navmap->getBySymb($middle);
155: if ($res && $res->randomout()) {
156: next;
157: }
158: }
159: $data{'realm'} = &mt('Resource');
160: $data{'symb'} = $middle;
161: }
162: $data{'datetype'} = $name;
163: if ($name eq 'duedate') {
164: $data{'datetype'} = &mt('Due');
165: # see if accidentally answerdate is before duedate
166: my $answerkey=$thiskey;
167: $answerkey=~s/duedate$/answerdate/;
168: if ($resourcedata->{$thiskey}>$resourcedata->{$answerkey}) {
169: $data{'datetype'} = &mt('Due and Answer Available');
170: }
171: }
172: if ($name eq 'opendate'
173: || $name eq 'contentopen' ) {
174: $data{'datetype'}=&mt('Opening');
175: }
176: if ($name eq 'contentclose') {
177: $data{'datetype'}=&mt('Closing');
178: }
179: if ($name eq 'answerdate') {
180: # see if accidentally answerdate is before duedate
181: my $duekey=$thiskey;
182: $duekey=~s/answerdate$/duedate/;
183: if ($resourcedata->{$duekey}>$resourcedata->{$thiskey}) {
184: # forget it
185: next;
186: }
187: $data{'datetype'}=&mt('Answer Available');
188: }
189: $returnhash{join("\0",$courseid,
190: $resourcedata->{$thiskey},
191: $resourcedata->{$thiskey})}=\%data;
192: }
193: }
194: return %returnhash;
195: }
196:
197: sub emptycell {
198: return '<td class="LC_calendar_day_empty"> </td>';
199: }
200:
201: sub normalcell {
202: my ($day,$month,$year,$items_ref)=@_;
203: my $output;
204: my @items=&order($items_ref);
205: foreach my $item (@items) {
206: if ($item) {
207: my ($courseid,$start,$end,$msg)=@$item;
208: my $internalflag= (ref($msg)) ? 1 : 0;
209: $msg = &display_msg($msg);
210: my $fullmsg=&mt('Calendar Announcement for ').$env{'course.'.$courseid.'.description'}.
211: '\n'.&Apache::lonlocal::locallocaltime($start);
212: if ($start!=$end) {
213: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
214: }
215: $fullmsg.=':\n'.$msg;
216: $fullmsg=~s/[\n\r]/\\n/gs;
217: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
218: $fullmsg=~s/&/\\&/g;
219: my $short_msg = substr($msg,0,20).((length($msg) > 20)?'...':'');
220: if (defined($output)) { $output.='<br />'; }
221: if ($courseid eq $env{'request.course.id'}) {
222: if ((&Apache::lonnet::allowed('srm',$env{'request.course.id'}))
223: && (!$showedcheck{$start.'_'.$end})
224: && ($env{'form.pickdate'} ne 'yes')
225: && (!$internalflag)) {
226: $output.='<input type="checkbox" name="remove_'.$start.'_'.
227: $end.'">';
228: $showedcheck{$start.'_'.$end}=1;
229: }
230: }
231: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
232: $short_msg.'</a>';
233: }
234: }
235: return '<td class="LC_calendar_day'.
236: ((($day eq $todayhash{'day'}) &&
237: ($month eq $todayhash{'month'}) &&
238: ($year eq $todayhash{'year'}))?'_current':'').
239: '" ><b>'.&picklink($day,$day,$month,$year).'</b><br />'.$output.'</td>';
240: }
241:
242: sub plaincell {
243: my ($items_ref)=@_;
244: my $output;
245: my @items=&order($items_ref);
246: foreach my $item (@items) {
247: if (ref($item)) {
248: my ($courseid,$start,$end,$msg)=@$item;
249: my $fullmsg=&mt('Calendar Announcement for ').$env{'course.'.$courseid.'.description'}.
250: '\n'.&Apache::lonlocal::locallocaltime($start);
251: if ($start!=$end) {
252: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
253: }
254: $msg = &display_msg($msg);
255: $fullmsg.=':\n'.$msg;
256: $fullmsg=~s/[\n\r]/\\n/gs;
257: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
258: $fullmsg=~s/&/\\&/g;
259: my $short_msg = substr($msg,0,80).((length($msg) > 80)?'...':'');
260: if (defined($output)) { $output.='<br />'; }
261: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
262: $short_msg.'</a>';
263: }
264: }
265: return $output;
266: }
267:
268: sub listcell {
269: my ($items_ref)=@_;
270: my $output='';
271: my @items=&order($items_ref);
272: foreach my $item (@items) {
273: if (ref($item)) {
274: my ($courseid,$start,$end,$msg)=@$item;
275: my $fullmsg=&Apache::lonlocal::locallocaltime($start);
276: if ($start!=$end) {
277: $fullmsg.=&mt(' to ').
278: &Apache::lonlocal::locallocaltime($end);
279: }
280: $fullmsg.=':<br /><b>'.&display_msg($msg).'</b>';
281: $output.='<li>'.$fullmsg.'</li>';
282: }
283: }
284: return $output;
285: }
286:
287: sub order {
288: my ($items)=@_;
289: return sort {
290: my ($astart,$aend)=$a->[1,2];
291: my ($bstart,$bend)=$b->[1,2];
292: if ($astart != $bstart) {
293: return $astart <=> $bstart;
294: }
295: return $aend <=> $bend;
296: } @$items;
297: }
298:
299: sub nextday {
300: my ($tk,%th)=@_;
301: my ($incmonth,$incyear);
302: if ($th{'day'} > 27) {
303: if ($th{'month'} == 2) {
304: if ($th{'day'} == 29) {
305: $incmonth = 1;
306: } elsif ($th{'day'} == 28) {
307: if (!&is_leap_year($tk)) {
308: $incmonth = 1;
309: }
310: }
311: } elsif (($th{'month'} == 4) || ($th{'month'} == 6) ||
312: ($th{'month'} == 9) || ($th{'month'} == 11)) {
313: if ($th{'day'} == 30) {
314: $incmonth = 1;
315: }
316: } elsif ($th{'day'} == 31) {
317: if ($th{'month'} == 12) {
318: $incyear = 1;
319: } else {
320: $incmonth = 1;
321: }
322: }
323: if ($incyear) {
324: $th{'day'} = 1;
325: $th{'month'} = 1;
326: $th{'year'}++;
327: } elsif ($incmonth) {
328: $th{'day'} = 1;
329: $th{'month'}++;
330: } else {
331: $th{'day'}++;
332: }
333: } else {
334: $th{'day'}++;
335: }
336: return (&Apache::loncommon::maketime(%th),$th{'month'});
337: }
338:
339: sub is_leap_year {
340: my ($thistime) = @_;
341: my ($is_leap,$timezone,$dt);
342: $timezone = &Apache::lonlocal::gettimezone();
343: eval {
344: $dt = DateTime->from_epoch(epoch => $thistime)
345: ->set_time_zone($timezone);
346: };
347: if (!$@) {
348: $is_leap = $dt->is_leap_year;
349: }
350: return $is_leap;
351: }
352:
353: sub display_msg {
354: my ($msg) = @_;
355:
356: # if it's not a ref, it's an instructor provided message
357: return $msg if (!ref($msg));
358:
359: my $output = $msg->{'datetype'}. ': '.$msg->{'realm'};
360: if (exists($msg->{'url'})) {
361: my $displayurl=&Apache::lonnet::gettitle($msg->{'url'});
362: if ($msg->{'url'}!~/\Q$displayurl\E$/) {
363: $output .= ' - '.$displayurl;
364: }
365: }
366: if (exists($msg->{'symb'})) {
367: my $displaysymb=&Apache::lonnet::gettitle($msg->{'symb'});
368: if ($msg->{'symb'}!~/\Q$displaysymb\E$/) {
369: $output .= ' - '.$displaysymb;
370: }
371: }
372: $output .= ' ('.$msg->{'section'}.') ';
373: return $output;
374: }
375:
376: sub showday {
377: my ($tk,$mode,%allcal)=@_;
378: my %th=&Apache::loncommon::timehash($tk);
379: my ($nextday,$nextmonth)=&nextday($tk,%th);
380: my @outp;
381: if ($mode) {
382: my $oneday=24*3600;
383: $tk-=$oneday;
384: $nextday+=$oneday;
385: }
386: foreach my $item (keys(%allcal)) {
387: my ($courseid,$startdate,$enddate)= split("\0",$item);
388: if (($startdate<$nextday) && ($enddate>=$tk)) {
389: push(@outp,[$courseid,$startdate,$enddate,$allcal{$item}]);
390: }
391: }
392: unless ($mode) {
393: return ($nextday,$nextmonth,&normalcell(
394: $th{'day'},$th{'month'},$th{'year'},\@outp));
395: } elsif (@outp) {
396: if ($mode==1) {
397: return '<br />'.&plaincell(\@outp);
398: } else {
399: return '<ul>'.&listcell(\@outp).'</ul>';
400: }
401: } else {
402: return '';
403: }
404: }
405:
406: sub picklink {
407: my ($text,$day,$month,$year)=@_;
408: if ($env{'form.pickdate'} eq 'yes') {
409: return '<a href="javascript:dialin('.$day.','.$month.','.$year.')">'.
410: $text.'</a>';
411: } else {
412: return $text;
413: }
414: }
415:
416: sub dialscript {
417: return (<<ENDDIA);
418: <script language="Javascript">
419: function dialin(day,month,year) {
420: opener.document.$env{'form.formname'}.$env{'form.element'}\_year.value=year;
421: var slct=opener.document.$env{'form.formname'}.$env{'form.element'}\_month;
422: var i;
423: for (i=0;i<slct.length;i++) {
424: if (slct.options[i].value==month) { slct.selectedIndex=i; }
425: }
426: opener.document.$env{'form.formname'}.$env{'form.element'}\_day.value=day;
427: opener.$env{'form.element'}\_checkday();
428: self.close();
429: }
430: </script>
431: ENDDIA
432: }
433: # ----------------------------------------------------- Summarize all calendars
434: sub get_all_calendars {
435: my %allcal=();
436: my %courses = &Apache::loncommon::findallcourses();
437: foreach my $course (sort(keys(%courses))) {
438: %allcal=(%allcal,&readcalendar($course));
439: }
440: return %allcal;
441: }
442:
443: sub output_ics_file {
444: my ($r)=@_;
445: # RFC 2445 wants CRLF
446: my $crlf="\015\012";
447: # Header
448: $r->print("BEGIN:VCALENDAR$crlf");
449: $r->print("VERSION:2.0$crlf");
450: $r->print("PRODID:-//LONCAPA//LONCAPA Calendar Output//EN$crlf");
451: my %allcal=&get_all_calendars();
452: foreach my $event (keys(%allcal)) {
453: my ($courseid,$startdate,$enddate)= split('\0',$event);
454: my $uid=$event;
455: $uid=~s/[\W\_]/-/gs;
456: $uid.='@loncapa';
457: my $summary=&display_msg($allcal{$event});
458: $summary=~s/\s+/ /gs;
459: $summary=$env{'course.'.$courseid.'.description'}.': '.$summary;
460: $r->print("BEGIN:VEVENT$crlf");
461: $r->print("DTSTART:".&Apache::loncommon::utc_string($startdate).$crlf);
462: $r->print("DTEND:".&Apache::loncommon::utc_string($enddate).$crlf);
463: $r->print("SUMMARY:$summary$crlf");
464: $r->print("UID:$uid$crlf");
465: $r->print("END:VEVENT$crlf");
466: }
467: # Footer
468: $r->print("END:VCALENDAR$crlf");
469: }
470:
471: sub show_timezone {
472: my $tzone = &Apache::lonlocal::gettimezone();
473: my $dt = DateTime->now();
474: my $tz = DateTime::TimeZone->new( name => $tzone );
475: return &mt('([_1] time zone)',$tz->short_name_for_datetime($dt));
476: }
477:
478: sub handler {
479: my $r = shift;
480: if ($r->uri=~/\.(ics|ical)$/) {
481: &Apache::loncommon::content_type($r,'text/calendar');
482: &output_ics_file($r);
483: return OK;
484: }
485: &Apache::loncommon::content_type($r,'text/html');
486: $r->send_http_header;
487: return OK if $r->header_only;
488:
489: # ---------------------------------------------------------- Get time right now
490: my $today=time;
491: %todayhash=&Apache::loncommon::timehash($today);
492: # ----------------------------------------------------------------- Check marks
493: undef(%showedcheck);
494: # ---------------------------------------------------------- Get month and year
495: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
496: ['month','year','pickdate','formname','element']);
497: # --------------------------------------------------- Decide what month to show
498: my $year=$todayhash{'year'};
499: if ($env{'form.year'}) { $year=$env{'form.year'}; }
500: my $month=$todayhash{'month'};
501: if ($env{'form.month'}) { $month=$env{'form.month'}; }
502:
503: # ---------------------------------------------- See if we are in pickdate mode
504: my $pickdatemode=($env{'form.pickdate'} eq 'yes');
505: my $pickinfo='&pickdate=yes&formname='.$env{'form.formname'}.
506: '&element='.$env{'form.element'};
507: # --------------------------------------------- Find out first day of the month
508:
509: my $tk = &Apache::loncommon::maketime( 'day' => 1,
510: 'month'=> $month,
511: 'year' => $year,
512: 'hour' => 0,
513: 'minute' => 0,
514: 'second' => 0);
515: my %firstday = &Apache::loncommon::timehash($tk);
516: my $weekday=$firstday{'weekday'};
517:
518: # ------------------------------------------------------------ Print the screen
519: my $js = <<ENDDOCUMENT;
520: <script type="text/javascript">
521:
522: function trysubmit() {
523: document.anno.action.value="new";
524: document.anno.submit();
525: }
526:
527: function removesub() {
528: document.anno.action.value="del";
529: document.anno.submit();
530: }
531: </script>
532: ENDDOCUMENT
533:
534: if ($pickdatemode) {
535: # no big header in pickdate mode
536: $r->print(&Apache::loncommon::start_page("Pick a Date",$js,
537: {'only_body' => 1,}).
538: &dialscript().
539: '<font size="1">');
540: } else {
541: my $brcrum = [{href=>"/adm/announcements",text=>"Announcements and Calendar"}];
542: $r->print(&Apache::loncommon::start_page("Communication",$js,{'bread_crumbs' => $brcrum}));
543: }
544: # does this user have privileges to post, etc?
545: my $allowed=0;
546: if ($env{'request.course.id'}) {
547: $allowed=&Apache::lonnet::allowed('srm',$env{'request.course.id'});
548: }
549: # does this user have privileges to post to servers?
550: my $serverpost=0;
551: if ($env{'request.role.domain'}) {
552: $serverpost=&Apache::lonnet::allowed('psa',
553: $env{'request.role.domain'});
554: } else {
555: $serverpost=&Apache::lonnet::allowed('psa','/');
556: }
557: # -------------------------------- BUT: do no fancy stuff when in pickdate mode
558: if ($pickdatemode) {
559: $serverpost=0;
560: $allowed=0;
561: }
562: # ------------------------------------------------------------ Process commands
563: if ($serverpost) {
564: if ($env{'form.serveraction'}) {
565: foreach my $key (keys(%env)) {
566: if ($key=~/^form\.postto\_(\w+)/) {
567: $r->print(
568: '<br />Posting '.$1.': '.&Apache::lonnet::postannounce
569: ($1,$env{'form.serverannnounce'}));
570: }
571: }
572: }
573: $r->print('<form name="serveranno" method="post">'
574: .'<h2>'.&mt('Post Server Announcements').'</h2>'
575: .&mt('Post announcements to the system login and roles screen').'<br />'
576: .'<i>'.&mt('(leave blank to delete announcement)').'</i><br />'
577: .'<textarea name="serverannnounce" cols="60" rows="5"></textarea><br />'
578: .&mt('Check machines:').'<br />'
579: );
580: # list servers
581: my %hostname = &Apache::lonnet::all_hostnames();
582: foreach my $host (sort(keys(%hostname))) {
583: if (&Apache::lonnet::allowed('psa',
584: &Apache::lonnet::host_domain($host))) {
585: $r->print ('<label><input type="checkbox" name="postto_'.$host.'" /> '.
586: $host.' <tt>'.$hostname{$host}.'</tt> '.
587: '</label><a href="http://'.$hostname{$host}.
588: '/announcement.txt?time='.time.'" target="annowin">'.
589: &mt('Current Announcement').'</a><br />');
590: }
591: }
592: $r->print(
593: '<br /><input type="submit" name="serveraction" value="'.&mt('Post').'"></form><hr />');
594: }
595: if ($allowed) {
596: my $coursenum=$env{'course.'.$env{'request.course.id'}.'.num'};
597: my $coursedom=$env{'course.'.$env{'request.course.id'}.'.domain'};
598: # ----------------------------------------------------- Store new submitted one
599: if ($env{'form.action'} eq 'new') {
600: my $startdate =
601: &Apache::lonhtmlcommon::get_date_from_form('startdate');
602: my $enddate =
603: &Apache::lonhtmlcommon::get_date_from_form('enddate');
604: unless ($startdate=~/^\d+$/) { $startdate=time; }
605: unless ($enddate=~/^\d+$/) { $enddate=$startdate+1; }
606: if ($startdate>$enddate) {
607: my $buffer=$startdate;
608: $startdate=$enddate;
609: $enddate=$buffer;
610: }
611: &Apache::lonnet::put('calendar',{
612: $startdate.'_'.$enddate =>
613: $env{'form.msg'} },$coursedom,$coursenum);
614: if ($env{'form.rsspost'}) {
615: &Apache::lonrss::addentry($coursenum,$coursedom,'Course_Announcements',
616: &mt('Event from [_1] to [_2]',
617: &Apache::lonlocal::locallocaltime($startdate),
618: &Apache::lonlocal::locallocaltime($enddate)),
619: $env{'form.msg'},'/adm/announcements','public');
620: }
621: }
622: # ---------------------------------------------------------------- Remove items
623: if ($env{'form.action'} eq 'del') {
624: my @delwhich=();
625: foreach my $key (keys(%env)) {
626: if ($key=~/^form\.remove\_(.+)$/) {
627: push(@delwhich,$1);
628: }
629: }
630: &Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
631: }
632: # -------------------------------------------------------- Form to post new one
633: my %tomorrowhash=%todayhash;
634: $tomorrowhash{'day'}++;
635: my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
636:
637: &editfield($r,$today,$tomorrow,'');
638: }
639: # ----------------------------------------------------- Summarize all calendars
640: my %allcal=&get_all_calendars();
641: # ------------------------------- Initialize table and forward backward buttons
642: my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
643: if ($pm<1) { ($pm,$py)=(12,$year-1); }
644: if ($fm>12){ ($fm,$fy)=(1,$year+1); }
645:
646: $r->print('<h2>'.&mt('Calendar').'</h2>'
647: .'<h3>'.('',&mt('January'),&mt('February'),&mt('March'),
648: &mt('April'),&mt('May'),
649: &mt('June'),&mt('July'),&mt('August'),
650: &mt('September'),&mt('October'),
651: &mt('November'),&mt('December'))[$month].' '.
652: $year.' '.&show_timezone().'</h3>');
653: # Reached the end of times, give up
654: if (($year<1970) || ($year>2037)) {
655: $r->print('<p class="LC_warning">'
656: .&mt('No calendar available for this date.')
657: .'</p>'
658: .'<a href="/adm/announcements?month='.$todayhash{'month'}
659: .'&year='.$todayhash{'year'}.'">'.&mt('Current Month').'</a>'
660: .&Apache::loncommon::end_page());
661: return OK;
662: }
663:
664: my $class = "LC_calendar";
665: if ($env{'form.pickdate'} eq 'yes') {
666: $class .= " LC_calendar_pickdate";
667: }
668: # ------------------------------------------------ Determine first day of a week
669: my $datelocale = &Apache::lonlocal::getdatelocale();
670: my $days_in_week = 7;
671: my $startweek = 0;
672: if (ref($datelocale)) {
673: $startweek = $datelocale->first_day_of_week();
674: if ($startweek == $days_in_week) { $startweek = 0; }
675: }
676: my @days = ('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
677: my @localdays;
678: if ($startweek == 0) {
679: @localdays = @days;
680: } else {
681: my $endday = $days_in_week - $startweek;
682: for (my $i=0; $i<$days_in_week; $i++) {
683: if ($i < $endday) {
684: $localdays[$i] = $days[$i+$startweek];
685: } else {
686: $localdays[$i] = $days[$i-$endday];
687: }
688: }
689: }
690:
691: # ----------------------------------------------------------- Weekday in locale
692: my $loc_weekday = $weekday - $startweek;
693: if ($loc_weekday < 0) {
694: $loc_weekday += $days_in_week;
695: }
696:
697: $r->print(
698: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
699: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
700: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
701: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
702: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
703: '&year='.$todayhash{'year'}.
704: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a><p>'.
705: '<table class="'.$class.'" cols="7" rows="5"><tr>');
706: for (my $i=0; $i<@localdays; $i++) {
707: $r->print('<th>'.&mt($localdays[$i]).'</th>');
708: }
709: $r->print('</tr>');
710:
711: my $outp;
712: my $nm;
713:
714: # ---------------------------------------------------------------- Actual table
715: $r->print('<tr>');
716: for (my $i=0;$i<$loc_weekday;$i++) { $r->print(&emptycell); }
717: for (my $i=$loc_weekday;$i<=6;$i++) {
718: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
719: $r->print($outp);
720: }
721: $r->print('</tr>');
722:
723: my $lastrow = 0;
724: my $lastday = 0;
725: for (my $k=0;$k<=4;$k++) {
726: if (!$lastrow) {
727: $r->print('<tr>');
728: for (my $i=0;$i<=6;$i++) {
729: if ($lastday) {
730: $outp = &emptycell();
731: } else {
732: my $currtk = $tk;
733: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
734: if ($month!=$nm) { $lastday = 1; }
735: }
736: $r->print($outp);
737: }
738: if ($lastday) {
739: $lastrow = 1;
740: }
741: $r->print('</tr>');
742: }
743: }
744: # ------------------------------------------------------------------- End table
745: $r->print('</table>');
746: # ----------------------------------------------------------------- Check marks
747: undef(%showedcheck);
748: # --------------------------------------------------------------- Remove button
749: if ($allowed) { $r->print('<br /><input type="button" onClick="removesub()" value="'.&mt('Remove Checked Entries').'">'.
750: &Apache::loncommon::help_open_topic('Calendar_Remove_Announcement').'</form>'); }
751: $r->print('<p>'.
752: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
753: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
754: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
755: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
756: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
757: '&year='.$todayhash{'year'}.
758: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a></p>'.
759: ($pickdatemode?'</font>':'').&Apache::loncommon::end_page());
760: $r->print('<a href="/adm/announcements.ics">'.&mt('Download your Calendar as iCalendar File').'</a>');
761: return OK;
762: }
763:
764: 1;
765: __END__
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