1: # The LearningOnline Network
2: # Announce
3: #
4: # $Id: lonannounce.pm,v 1.71.2.2 2008/09/25 01:53:50 raeburn 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 %lt=&Apache::lonlocal::texthash('post' => 'Post Announcement',
58: 'start' => 'Starting date',
59: 'end' => 'Ending date',
60: 'incrss' => 'Include in course RSS newsfeed');
61:
62: $r->print(<<ENDFORM);
63: $help
64: <form name="anno" method="post">
65: <input type="hidden" value='' name="action" />
66: <table><tr><td>$lt{'start'}:</td><td>$startdateform</td></tr>
67: <tr><td>$lt{'end'}:</td><td>$enddateform</td></tr></table>
68: <textarea name="msg" rows="4" cols="60">$text</textarea>
69: <br />
70: <label><input type="checkbox" name="rsspost" /> $lt{'incrss'}</label>
71: <br /><input type="button" onClick="trysubmit()" value="$lt{'post'}" /><hr />
72: ENDFORM
73: }
74:
75: sub readcalendar {
76: my $courseid=shift;
77: my $coursenum=$env{'course.'.$courseid.'.num'};
78: my $coursedom=$env{'course.'.$courseid.'.domain'};
79: if ($coursenum eq '' || $coursedom eq '') {
80: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
81: if ($coursenum eq '' && exists($courseinfo{'num'})) {
82: $coursenum = $courseinfo{'num'};
83: }
84: if ($coursedom eq '' && exists($courseinfo{'domain'})) {
85: $coursedom = $courseinfo{'domain'};
86: }
87: }
88:
89: my %thiscal=&Apache::lonnet::dump('calendar',$coursedom,$coursenum);
90: my %returnhash=();
91: foreach my $item (keys(%thiscal)) {
92: unless (($item=~/^error\:/) || ($thiscal{$item}=~/^error\:/)) {
93: my ($start,$end)=split('_',$item);
94: $returnhash{join("\0",$courseid,$start,$end)}=$thiscal{$item};
95: }
96: }
97: my $can_see_hidden = ($env{'request.role.adv'} &&
98: ($courseid eq $env{'request.course.id'}));
99:
100: my $navmap;
101: if ($courseid eq $env{'request.course.id'}) {
102: $navmap = Apache::lonnavmaps::navmap->new();
103: }
104:
105: my $resourcedata=
106: &Apache::lonnet::get_courseresdata($coursenum,$coursedom);
107: if (ref($resourcedata) ne 'HASH') {
108: return %returnhash;
109: }
110: foreach my $thiskey (keys(%$resourcedata)) {
111: if ($resourcedata->{$thiskey.'.type'}=~/^date/) {
112: my ($course,$middle,$part,$name)=
113: ($thiskey=~/^(\Q$courseid\E)\.(?:(.+)\.)*([\w\s]+)\.(\w+)$/);
114:
115: my %data = ( 'section' => &mt('All Students'));
116: if ($middle=~/^\[(.*)\]\./) {
117: my $sec=$1;
118: # if we have a section don't show ones that aren't ours
119: if ($env{'request.course.sec'} &&
120: $env{'request.course.sec'} ne $sec) { next; }
121: # if a student without a section don't show any section ones
122: if (!$env{'request.role.adv'} &&
123: !$env{'request.course.sec'}) { next; }
124: $data{'section'}=&mt('Group/Section').': '.$1;
125: $middle=~s/^\[(.*)\]\.//;
126: }
127: $middle=~s/\.$//;
128: $data{'realm'}=&mt('All Resources');
129: if ($middle eq '___(all)') {
130: if (!$can_see_hidden && !$navmap) {
131: next;
132: }
133: } elsif ($middle=~/^(.+)\_\_\_\(all\)$/) {
134: my $map_url=$1;
135: if (!$can_see_hidden && !$navmap) {
136: next;
137: }
138: if (!$can_see_hidden) {
139: my $res = $navmap->getResourceByUrl($map_url);
140: if ($res && $res->randomout()) {
141: next;
142: }
143: }
144: $data{'realm'}=&mt('Folder/Map');
145: $data{'url'} = $map_url;
146: } elsif ($middle) {
147: if (!$can_see_hidden && !$navmap) {
148: next;
149: }
150: if (!$can_see_hidden) {
151: my $res = $navmap->getBySymb($middle);
152: if ($res && $res->randomout()) {
153: next;
154: }
155: }
156: $data{'realm'} = &mt('Resource');
157: $data{'symb'} = $middle;
158: }
159: $data{'datetype'} = $name;
160: if ($name eq 'duedate') {
161: $data{'datetype'} = &mt('Due');
162: # see if accidentally answerdate is before duedate
163: my $answerkey=$thiskey;
164: $answerkey=~s/duedate$/answerdate/;
165: if ($resourcedata->{$thiskey}>$resourcedata->{$answerkey}) {
166: $data{'datetype'} = &mt('Due and Answer Available');
167: }
168: }
169: if ($name eq 'opendate'
170: || $name eq 'contentopen' ) {
171: $data{'datetype'}=&mt('Opening');
172: }
173: if ($name eq 'contentclose') {
174: $data{'datetype'}=&mt('Closing');
175: }
176: if ($name eq 'answerdate') {
177: # see if accidentally answerdate is before duedate
178: my $duekey=$thiskey;
179: $duekey=~s/answerdate$/duedate/;
180: if ($resourcedata->{$duekey}>$resourcedata->{$thiskey}) {
181: # forget it
182: next;
183: }
184: $data{'datetype'}=&mt('Answer Available');
185: }
186: $returnhash{join("\0",$courseid,
187: $resourcedata->{$thiskey},
188: $resourcedata->{$thiskey})}=\%data;
189: }
190: }
191: return %returnhash;
192: }
193:
194: sub emptycell {
195: return '<td class="LC_calendar_day_empty"> </td>';
196: }
197:
198: sub normalcell {
199: my ($day,$month,$year,$items_ref)=@_;
200: my $output;
201: my @items=&order($items_ref);
202: foreach my $item (@items) {
203: if ($item) {
204: my ($courseid,$start,$end,$msg)=@$item;
205: my $internalflag= (ref($msg)) ? 1 : 0;
206: $msg = &display_msg($msg);
207: my $fullmsg=&mt('Calendar Announcement for ').$env{'course.'.$courseid.'.description'}.
208: '\n'.&Apache::lonlocal::locallocaltime($start);
209: if ($start!=$end) {
210: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
211: }
212: $fullmsg.=':\n'.$msg;
213: $fullmsg=~s/[\n\r]/\\n/gs;
214: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
215: $fullmsg=~s/&/\\&/g;
216: my $short_msg = substr($msg,0,20).((length($msg) > 20)?'...':'');
217: if (defined($output)) { $output.='<br />'; }
218: if ($courseid eq $env{'request.course.id'}) {
219: if ((&Apache::lonnet::allowed('srm',$env{'request.course.id'}))
220: && (!$showedcheck{$start.'_'.$end})
221: && ($env{'form.pickdate'} ne 'yes')
222: && (!$internalflag)) {
223: $output.='<input type="checkbox" name="remove_'.$start.'_'.
224: $end.'">';
225: $showedcheck{$start.'_'.$end}=1;
226: }
227: }
228: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
229: $short_msg.'</a>';
230: }
231: }
232: return '<td class="LC_calendar_day'.
233: ((($day eq $todayhash{'day'}) &&
234: ($month eq $todayhash{'month'}) &&
235: ($year eq $todayhash{'year'}))?'_current':'').
236: '" ><b>'.&picklink($day,$day,$month,$year).'</b><br />'.$output.'</td>';
237: }
238:
239: sub plaincell {
240: my ($items_ref)=@_;
241: my $output;
242: my @items=&order($items_ref);
243: foreach my $item (@items) {
244: if (ref($item)) {
245: my ($courseid,$start,$end,$msg)=@$item;
246: my $fullmsg=&mt('Calendar Announcement for ').$env{'course.'.$courseid.'.description'}.
247: '\n'.&Apache::lonlocal::locallocaltime($start);
248: if ($start!=$end) {
249: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
250: }
251: $msg = &display_msg($msg);
252: $fullmsg.=':\n'.$msg;
253: $fullmsg=~s/[\n\r]/\\n/gs;
254: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
255: $fullmsg=~s/&/\\&/g;
256: my $short_msg = substr($msg,0,80).((length($msg) > 80)?'...':'');
257: if (defined($output)) { $output.='<br />'; }
258: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
259: $short_msg.'</a>';
260: }
261: }
262: return $output;
263: }
264:
265: sub listcell {
266: my ($items_ref)=@_;
267: my $output='';
268: my @items=&order($items_ref);
269: foreach my $item (@items) {
270: if (ref($item)) {
271: my ($courseid,$start,$end,$msg)=@$item;
272: my $fullmsg=&Apache::lonlocal::locallocaltime($start);
273: if ($start!=$end) {
274: $fullmsg.=&mt(' to ').
275: &Apache::lonlocal::locallocaltime($end);
276: }
277: $fullmsg.=':<br /><b>'.&display_msg($msg).'</b>';
278: $output.='<li>'.$fullmsg.'</li>';
279: }
280: }
281: return $output;
282: }
283:
284: sub order {
285: my ($items)=@_;
286: return sort {
287: my ($astart,$aend)=$a->[1,2];
288: my ($bstart,$bend)=$b->[1,2];
289: if ($astart != $bstart) {
290: return $astart <=> $bstart;
291: }
292: return $aend <=> $bend;
293: } @$items;
294: }
295:
296: sub nextday {
297: my ($tk,%th)=@_;
298: my ($incmonth,$incyear);
299: if ($th{'day'} > 27) {
300: if ($th{'month'} == 2) {
301: if ($th{'day'} == 29) {
302: $incmonth = 1;
303: } elsif ($th{'day'} == 28) {
304: if (!&is_leap_year($tk)) {
305: $incmonth = 1;
306: }
307: }
308: } elsif (($th{'month'} == 4) || ($th{'month'} == 6) ||
309: ($th{'month'} == 9) || ($th{'month'} == 11)) {
310: if ($th{'day'} == 30) {
311: $incmonth = 1;
312: }
313: } elsif ($th{'day'} == 31) {
314: if ($th{'month'} == 12) {
315: $incyear = 1;
316: } else {
317: $incmonth = 1;
318: }
319: }
320: if ($incyear) {
321: $th{'day'} = 1;
322: $th{'month'} = 1;
323: $th{'year'}++;
324: } elsif ($incmonth) {
325: $th{'day'} = 1;
326: $th{'month'}++;
327: } else {
328: $th{'day'}++;
329: }
330: } else {
331: $th{'day'}++;
332: }
333: return (&Apache::loncommon::maketime(%th),$th{'month'});
334: }
335:
336: sub is_leap_year {
337: my ($thistime) = @_;
338: my ($is_leap,$timezone,$dt);
339: $timezone = &Apache::lonlocal::gettimezone();
340: eval {
341: $dt = DateTime->from_epoch(epoch => $thistime)
342: ->set_time_zone($timezone);
343: };
344: if (!$@) {
345: $is_leap = $dt->is_leap_year;
346: }
347: return $is_leap;
348: }
349:
350: sub display_msg {
351: my ($msg) = @_;
352:
353: # if it's not a ref, it's an instructor provided message
354: return $msg if (!ref($msg));
355:
356: my $output = $msg->{'datetype'}. ': '.$msg->{'realm'};
357: if (exists($msg->{'url'})) {
358: my $displayurl=&Apache::lonnet::gettitle($msg->{'url'});
359: if ($msg->{'url'}!~/\Q$displayurl\E$/) {
360: $output .= ' - '.$displayurl;
361: }
362: }
363: if (exists($msg->{'symb'})) {
364: my $displaysymb=&Apache::lonnet::gettitle($msg->{'symb'});
365: if ($msg->{'symb'}!~/\Q$displaysymb\E$/) {
366: $output .= ' - '.$displaysymb;
367: }
368: }
369: $output .= ' ('.$msg->{'section'}.') ';
370: return $output;
371: }
372:
373: sub showday {
374: my ($tk,$mode,%allcal)=@_;
375: my %th=&Apache::loncommon::timehash($tk);
376: my ($nextday,$nextmonth)=&nextday($tk,%th);
377: my @outp;
378: if ($mode) {
379: my $oneday=24*3600;
380: $tk-=$oneday;
381: $nextday+=$oneday;
382: }
383: foreach my $item (keys(%allcal)) {
384: my ($courseid,$startdate,$enddate)= split("\0",$item);
385: if (($startdate<$nextday) && ($enddate>=$tk)) {
386: push(@outp,[$courseid,$startdate,$enddate,$allcal{$item}]);
387: }
388: }
389: unless ($mode) {
390: return ($nextday,$nextmonth,&normalcell(
391: $th{'day'},$th{'month'},$th{'year'},\@outp));
392: } elsif (@outp) {
393: if ($mode==1) {
394: return '<br />'.&plaincell(\@outp);
395: } else {
396: return '<ul>'.&listcell(\@outp).'</ul>';
397: }
398: } else {
399: return '';
400: }
401: }
402:
403: sub picklink {
404: my ($text,$day,$month,$year)=@_;
405: if ($env{'form.pickdate'} eq 'yes') {
406: return '<a href="javascript:dialin('.$day.','.$month.','.$year.')">'.
407: $text.'</a>';
408: } else {
409: return $text;
410: }
411: }
412:
413: sub dialscript {
414: return (<<ENDDIA);
415: <script language="Javascript">
416: function dialin(day,month,year) {
417: opener.document.$env{'form.formname'}.$env{'form.element'}\_year.value=year;
418: var slct=opener.document.$env{'form.formname'}.$env{'form.element'}\_month;
419: var i;
420: for (i=0;i<slct.length;i++) {
421: if (slct.options[i].value==month) { slct.selectedIndex=i; }
422: }
423: opener.document.$env{'form.formname'}.$env{'form.element'}\_day.value=day;
424: opener.$env{'form.element'}\_checkday();
425: self.close();
426: }
427: </script>
428: ENDDIA
429: }
430: # ----------------------------------------------------- Summarize all calendars
431: sub get_all_calendars {
432: my %allcal=();
433: my %courses = &Apache::loncommon::findallcourses();
434: foreach my $course (sort(keys(%courses))) {
435: %allcal=(%allcal,&readcalendar($course));
436: }
437: return %allcal;
438: }
439:
440: sub output_ics_file {
441: my ($r)=@_;
442: # RFC 2445 wants CRLF
443: my $crlf="\015\012";
444: # Header
445: $r->print("BEGIN:VCALENDAR$crlf");
446: $r->print("VERSION:2.0$crlf");
447: $r->print("PRODID:-//LONCAPA//LONCAPA Calendar Output//EN$crlf");
448: my %allcal=&get_all_calendars();
449: foreach my $event (keys(%allcal)) {
450: my ($courseid,$startdate,$enddate)= split('\0',$event);
451: my $uid=$event;
452: $uid=~s/[\W\_]/-/gs;
453: $uid.='@loncapa';
454: my $summary=&display_msg($allcal{$event});
455: $summary=~s/\s+/ /gs;
456: $summary=$env{'course.'.$courseid.'.description'}.': '.$summary;
457: $r->print("BEGIN:VEVENT$crlf");
458: $r->print("DTSTART:".&Apache::loncommon::utc_string($startdate).$crlf);
459: $r->print("DTEND:".&Apache::loncommon::utc_string($enddate).$crlf);
460: $r->print("SUMMARY:$summary$crlf");
461: $r->print("UID:$uid$crlf");
462: $r->print("END:VEVENT$crlf");
463: }
464: # Footer
465: $r->print("END:VCALENDAR$crlf");
466: }
467:
468: sub show_timezone {
469: my $tzone = &Apache::lonlocal::gettimezone();
470: my $dt = DateTime->now();
471: my $tz = DateTime::TimeZone->new( name => $tzone );
472: return &mt('([_1] time zone)',$tz->short_name_for_datetime($dt));
473: }
474:
475: sub handler {
476: my $r = shift;
477: if ($r->uri=~/\.(ics|ical)$/) {
478: &Apache::loncommon::content_type($r,'text/calendar');
479: &output_ics_file($r);
480: return OK;
481: }
482: &Apache::loncommon::content_type($r,'text/html');
483: $r->send_http_header;
484: return OK if $r->header_only;
485:
486: # ---------------------------------------------------------- Get time right now
487: my $today=time;
488: %todayhash=&Apache::loncommon::timehash($today);
489: # ----------------------------------------------------------------- Check marks
490: undef(%showedcheck);
491: # ---------------------------------------------------------- Get month and year
492: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
493: ['month','year','pickdate','formname','element']);
494: # --------------------------------------------------- Decide what month to show
495: my $year=$todayhash{'year'};
496: if ($env{'form.year'}) { $year=$env{'form.year'}; }
497: my $month=$todayhash{'month'};
498: if ($env{'form.month'}) { $month=$env{'form.month'}; }
499:
500: # ---------------------------------------------- See if we are in pickdate mode
501: my $pickdatemode=($env{'form.pickdate'} eq 'yes');
502: my $pickinfo='&pickdate=yes&formname='.$env{'form.formname'}.
503: '&element='.$env{'form.element'};
504: # --------------------------------------------- Find out first day of the month
505:
506: my $tk = &Apache::loncommon::maketime( 'day' => 1,
507: 'month'=> $month,
508: 'year' => $year,
509: 'hour' => 0,
510: 'minute' => 0,
511: 'second' => 0);
512: my %firstday = &Apache::loncommon::timehash($tk);
513: my $weekday=$firstday{'weekday'};
514:
515: # ------------------------------------------------------------ Print the screen
516: my $js = <<ENDDOCUMENT;
517: <script type="text/javascript">
518:
519: function trysubmit() {
520: document.anno.action.value="new";
521: document.anno.submit();
522: }
523:
524: function removesub() {
525: document.anno.action.value="del";
526: document.anno.submit();
527: }
528: </script>
529: ENDDOCUMENT
530:
531: if ($pickdatemode) {
532: # no big header in pickdate mode
533: $r->print(&Apache::loncommon::start_page("Pick a Date",$js,
534: {'only_body' => 1,}).
535: &dialscript().
536: '<font size="1">');
537: } else {
538: $r->print(&Apache::loncommon::start_page("Announcements and Calendar",
539: $js));
540: }
541: # does this user have privileges to post, etc?
542: my $allowed=0;
543: if ($env{'request.course.id'}) {
544: $allowed=&Apache::lonnet::allowed('srm',$env{'request.course.id'});
545: }
546: # does this user have privileges to post to servers?
547: my $serverpost=0;
548: if ($env{'request.role.domain'}) {
549: $serverpost=&Apache::lonnet::allowed('psa',
550: $env{'request.role.domain'});
551: } else {
552: $serverpost=&Apache::lonnet::allowed('psa','/');
553: }
554: # -------------------------------- BUT: do no fancy stuff when in pickdate mode
555: if ($pickdatemode) {
556: $serverpost=0;
557: $allowed=0;
558: }
559: # ------------------------------------------------------------ Process commands
560: if ($serverpost) {
561: if ($env{'form.serveraction'}) {
562: foreach my $key (keys(%env)) {
563: if ($key=~/^form\.postto\_(\w+)/) {
564: $r->print(
565: '<br />Posting '.$1.': '.&Apache::lonnet::postannounce
566: ($1,$env{'form.serverannnounce'}));
567: }
568: }
569: }
570: $r->print(<<SERVERANNOUNCE);
571: <form name="serveranno" method="post">
572: <h3>Post Server Announcements</h3>
573: Post announcements to the system login and roles screen<br />
574: <i>(leave blank to delete announcement)</i><br />
575: <textarea name="serverannnounce" cols="60" rows="5"></textarea><br />
576: Check machines:<br />
577: SERVERANNOUNCE
578: # list servers
579: my %hostname = &Apache::lonnet::all_hostnames();
580: foreach my $host (sort(keys(%hostname))) {
581: if (&Apache::lonnet::allowed('psa',
582: &Apache::lonnet::host_domain($host))) {
583: $r->print ('<br /><label><input type="checkbox" name="postto_'.$host.'" /> '.
584: $host.' <tt>'.$hostname{$host}.'</tt> '.
585: '</label><a href="http://'.$hostname{$host}.
586: '/announcement.txt?time='.time.'" target="annowin">current</a>');
587: }
588: }
589: $r->print(
590: '<br /><input type="submit" name="serveraction" value="Post"></form><hr />');
591: }
592: if ($allowed) {
593: my $coursenum=$env{'course.'.$env{'request.course.id'}.'.num'};
594: my $coursedom=$env{'course.'.$env{'request.course.id'}.'.domain'};
595: # ----------------------------------------------------- Store new submitted one
596: if ($env{'form.action'} eq 'new') {
597: my $startdate =
598: &Apache::lonhtmlcommon::get_date_from_form('startdate');
599: my $enddate =
600: &Apache::lonhtmlcommon::get_date_from_form('enddate');
601: unless ($startdate=~/^\d+$/) { $startdate=time; }
602: unless ($enddate=~/^\d+$/) { $enddate=$startdate+1; }
603: if ($startdate>$enddate) {
604: my $buffer=$startdate;
605: $startdate=$enddate;
606: $enddate=$buffer;
607: }
608: &Apache::lonnet::put('calendar',{
609: $startdate.'_'.$enddate =>
610: $env{'form.msg'} },$coursedom,$coursenum);
611: if ($env{'form.rsspost'}) {
612: &Apache::lonrss::addentry($coursenum,$coursedom,'Course_Announcements',
613: &mt('Event from [_1] to [_2]',
614: &Apache::lonlocal::locallocaltime($startdate),
615: &Apache::lonlocal::locallocaltime($enddate)),
616: $env{'form.msg'},'/adm/announcements','public');
617: }
618: }
619: # ---------------------------------------------------------------- Remove items
620: if ($env{'form.action'} eq 'del') {
621: my @delwhich=();
622: foreach my $key (keys(%env)) {
623: if ($key=~/^form\.remove\_(.+)$/) {
624: push(@delwhich,$1);
625: }
626: }
627: &Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
628: }
629: # -------------------------------------------------------- Form to post new one
630: my %tomorrowhash=%todayhash;
631: $tomorrowhash{'day'}++;
632: my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
633:
634: &editfield($r,$today,$tomorrow,'');
635: }
636: # ----------------------------------------------------- Summarize all calendars
637: my %allcal=&get_all_calendars();
638: # ------------------------------- Initialize table and forward backward buttons
639: my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
640: if ($pm<1) { ($pm,$py)=(12,$year-1); }
641: if ($fm>12){ ($fm,$fy)=(1,$year+1); }
642:
643: $r->print('<h1>'.('',&mt('January'),&mt('February'),&mt('March'),
644: &mt('April'),&mt('May'),
645: &mt('June'),&mt('July'),&mt('August'),
646: &mt('September'),&mt('October'),
647: &mt('November'),&mt('December'))[$month].' '.
648: $year.' '.&show_timezone().'</h1>');
649: # Reached the end of times, give up
650: if (($year<1970) || ($year>2037)) {
651: $r->print('<h3>No calendar available for this date.</h3>'.
652: '<a href="/adm/announcements?month='.$todayhash{'month'}.
653: '&year='.$todayhash{'year'}.'">Current Month</a>'.
654: &Apache::loncommon::end_page());
655: return OK;
656: }
657:
658: my $class = "LC_calendar";
659: if ($env{'form.pickdate'} eq 'yes') {
660: $class .= " LC_calendar_pickdate";
661: }
662: # ------------------------------------------------ Determine first day of a week
663: # my $datelocale = &Apache::lonlocal::getdatelocale();
664: my $datelocale;
665: my $days_in_week = 7;
666: my $startweek = 0;
667: if (ref($datelocale)) {
668: $startweek = $datelocale->first_day_of_week();
669: if ($startweek == $days_in_week) { $startweek = 0; }
670: }
671: my @days = ('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
672: my @localdays;
673: if ($startweek == 0) {
674: @localdays = @days;
675: } else {
676: my $endday = $days_in_week - $startweek;
677: for (my $i=0; $i<$days_in_week; $i++) {
678: if ($i < $endday) {
679: $localdays[$i] = $days[$i+$startweek];
680: } else {
681: $localdays[$i] = $days[$i-$endday];
682: }
683: }
684: }
685:
686: # ----------------------------------------------------------- Weekday in locale
687: my $loc_weekday = $weekday - $startweek;
688: if ($loc_weekday < 0) {
689: $loc_weekday += $days_in_week;
690: }
691:
692: $r->print(
693: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
694: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
695: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
696: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
697: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
698: '&year='.$todayhash{'year'}.
699: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a><p>'.
700: '<table class="'.$class.'" cols="7" rows="5"><tr>');
701: for (my $i=0; $i<@localdays; $i++) {
702: $r->print('<th>'.&mt($localdays[$i]).'</th>');
703: }
704: $r->print('</tr>');
705:
706: my $outp;
707: my $nm;
708:
709: # ---------------------------------------------------------------- Actual table
710: $r->print('<tr>');
711: for (my $i=0;$i<$loc_weekday;$i++) { $r->print(&emptycell); }
712: for (my $i=$loc_weekday;$i<=6;$i++) {
713: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
714: $r->print($outp);
715: }
716: $r->print('</tr>');
717:
718: my $lastrow = 0;
719: my $lastday = 0;
720: for (my $k=0;$k<=4;$k++) {
721: if (!$lastrow) {
722: $r->print('<tr>');
723: for (my $i=0;$i<=6;$i++) {
724: if ($lastday) {
725: $outp = &emptycell();
726: } else {
727: my $currtk = $tk;
728: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
729: if ($month!=$nm) { $lastday = 1; }
730: }
731: $r->print($outp);
732: }
733: if ($lastday) {
734: $lastrow = 1;
735: }
736: $r->print('</tr>');
737: }
738: }
739: # ------------------------------------------------------------------- End table
740: $r->print('</table>');
741: # ----------------------------------------------------------------- Check marks
742: undef(%showedcheck);
743: # --------------------------------------------------------------- Remove button
744: if ($allowed) { $r->print('<input type="button" onClick="removesub()" value="Remove Checked Entries">'.
745: &Apache::loncommon::help_open_topic('Calendar_Remove_Announcement').'</form>'); }
746: $r->print('<p>'.
747: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
748: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
749: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
750: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
751: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
752: '&year='.$todayhash{'year'}.
753: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a></p>'.
754: ($pickdatemode?'</font>':'').&Apache::loncommon::end_page());
755: $r->print('<a href="/adm/announcements.ics">'.&mt('Download your Calendar as iCalendar File').'</a>');
756: return OK;
757: }
758:
759: 1;
760: __END__
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