1: # The LearningOnline Network
2: # Announce
3: #
4: # $Id: lonannounce.pm,v 1.7 2002/09/11 15:01:43 matthew 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:
35: sub readcalendar {
36: my $courseid=shift;
37: my $coursenum=$ENV{'course.'.$courseid.'.num'};
38: my $coursedom=$ENV{'course.'.$courseid.'.domain'};
39: my %thiscal=&Apache::lonnet::dump('calendar',$coursedom,$coursenum);
40: my %returnhash=();
41: foreach (keys %thiscal) {
42: unless (($_=~/^error\:/) || ($thiscal{$_}=~/^error\:/)) {
43: $returnhash{$courseid.'@'.$_}=$thiscal{$_};
44: }
45: }
46: return %returnhash;
47: }
48:
49: sub emptycell {
50: return '<td bgcolor="#AAAAAA"> </td>';
51: }
52:
53: sub normalcell {
54: my ($day,$text)=@_;
55: my $output='';
56: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
57: if ($_) {
58: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
59: my $msg=join('@',@msg);
60: my $fullmsg=$ENV{'course.'.$courseid.'.description'}.': '.$msg;
61: if ($courseid eq $ENV{'request.course.id'}) {
62: if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
63: $output.='<input type="checkbox" name="remove_'.$start.'_'.
64: $end.'">';
65: }
66: }
67: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
68: substr($msg,0,20).'...</a><br>';
69: }
70: }
71: return '<td><b>'.$day.'</b><br>'.$output.'</td>';
72: }
73:
74: sub nextday {
75: my %th=@_;
76: $th{'day'}++;
77: return (&Apache::loncommon::maketime(%th),$th{'month'});
78: }
79:
80: sub showday {
81: my ($tk,%allcal)=@_;
82: my %th=&Apache::loncommon::timehash($tk);
83: my ($nextday,$nextmonth)=&nextday(%th);
84: my $outp='';
85: my $oneday=24*3600;
86: foreach (keys %allcal) {
87: my ($course,$startdate,$enddate)=($_=~/^(\w+)\@(\d+)\_(\d+)$/);
88: if (($startdate<$nextday) && ($enddate>$tk)) {
89: $outp.='___&&&___'.$course.'@'.$startdate.'@'.$enddate.'@'.
90: $allcal{$_};
91: }
92: }
93: return ($nextday,$nextmonth,&normalcell($th{'day'},$outp));
94: }
95:
96: sub handler {
97: my $r = shift;
98: $r->content_type('text/html');
99: $r->send_http_header;
100: return OK if $r->header_only;
101:
102: # ---------------------------------------------------------- Get time right now
103: my $today=time;
104: my %todayhash=&Apache::loncommon::timehash($today);
105:
106: # ---------------------------------------------------------- Get month and year
107: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
108: ['month','year']);
109: # --------------------------------------------------- Decide what month to show
110: my $year=$todayhash{'year'};
111: if ($ENV{'form.year'}) { $year=$ENV{'form.year'}; }
112: my $month=$todayhash{'month'};
113: if ($ENV{'form.month'}) { $month=$ENV{'form.month'}; }
114: # --------------------------------------------- Find out first day of the month
115:
116: my %firstday=&Apache::loncommon::timehash(
117: &Apache::loncommon::maketime( 'day' => 1, 'month'=> $month,
118: 'year' => $year, 'hours' => 0,
119: 'minutes' => 0, 'seconds' => 0,
120: 'dlsav' => $todayhash{'dlsav'} ));
121: my $weekday=$firstday{'weekday'};
122: # ------------------------------------------------------------ Print the screen
123: $r->print(<<ENDDOCUMENT);
124: <html>
125: <head>
126: <title>The LearningOnline Network with CAPA</title>
127: <script>
128: function pclose() {
129: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
130: "height=350,width=350,scrollbars=no,menubar=no");
131: parmwin.close();
132: }
133:
134: function pjump(type,dis,value,marker,ret,call) {
135: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
136: +"&value="+escape(value)+"&marker="+escape(marker)
137: +"&return="+escape(ret)
138: +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
139: "height=350,width=350,scrollbars=no,menubar=no");
140:
141: }
142:
143: function dateset() {
144: if (document.anno.pres_marker.value=='end') {
145: document.anno.enddate.value=
146: document.anno.pres_value.value;
147: }
148: if (document.anno.pres_marker.value=='start') {
149: document.anno.startdate.value=
150: document.anno.pres_value.value;
151: }
152: pclose();
153: }
154:
155: function trysubmit() {
156: if (document.anno.startdate.value=='') {
157: alert("Announcements must have a starting date");
158: return '';
159: }
160: if (document.anno.enddate.value=='') {
161: alert("Announcements must have a starting date");
162: return '';
163: }
164: if (document.anno.startdate.value>document.anno.enddate.value) {
165: alert("Starting date is later than ending date");
166: return '';
167: }
168: document.anno.action.value="new";
169: document.anno.submit();
170: }
171:
172: function removesub() {
173: document.anno.action.value="del";
174: document.anno.submit();
175: }
176: </script>
177: </head>
178: ENDDOCUMENT
179: $r->print(&Apache::loncommon::bodytag("Announcements and Calendar"));
180: # does this user have privileges to post, etc?
181: my $allowed=0;
182: if ($ENV{'request.course.id'}) {
183: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
184: }
185:
186: if ($allowed) {
187: my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
188: my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
189: # ----------------------------------------------------- Store new submitted one
190: if ($ENV{'form.action'} eq 'new') {
191: &Apache::lonnet::put('calendar',{
192: $ENV{'form.startdate'}.'_'.$ENV{'form.enddate'} =>
193: $ENV{'form.msg'} },$coursedom,$coursenum);
194: }
195: # ---------------------------------------------------------------- Remove items
196: if ($ENV{'form.action'} eq 'del') {
197: my @delwhich=();
198: foreach (keys %ENV) {
199: if ($_=~/^form\.remove\_(.+)$/) {
200: push(@delwhich,$1);
201: }
202: }
203: &Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
204: }
205: # -------------------------------------------------------- Form to post new one
206: my %tomorrowhash=%todayhash;
207: $tomorrowhash{'day'}++;
208: my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
209:
210: $r->print(<<ENDFORM);
211: <form name="anno" method="post">
212: <input type="hidden" value='' name="action" >
213: <input type="hidden" value='' name="pres_value" >
214: <input type="hidden" value='' name="pres_type" >
215: <input type="hidden" value='' name="pres_marker" >
216: <input type="hidden" value='$today' name="startdate" >
217: <input type="hidden" value='$tomorrow' name="enddate" >
218: <a
219: href="javascript:pjump('date_start','Starting Date',document.anno.startdate.value,'start','anno.pres','dateset');"
220: >Set Starting Date</a>
221: <a
222: href="javascript:pjump('date_end','Ending Date',document.anno.enddate.value,'end','anno.pres','dateset');"
223: >Set Ending Date</a><p>
224: <textarea name="msg" rows="4" cols="60">
225: </textarea>
226: <input type="button" onClick="trysubmit()" value="Post Announcement"><hr>
227: <input type="button" onClick="removesub()" value="Remove Marked"><hr>
228: ENDFORM
229: }
230: # ----------------------------------------------------- Summarize all calendars
231: my %allcal=();
232: foreach (&Apache::loncommon::findallcourses()) {
233: %allcal=(%allcal,&readcalendar($_));
234: }
235:
236: # ------------------------------- Initialize table and forward backward buttons
237: my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
238: if ($pm<1) { ($pm,$py)=(12,$year-1); }
239: if ($fm>12){ ($fm,$fy)=(1,$year+1); }
240: $r->print('<h1>'.('','January','February','March','April','May',
241: 'June','July','August','September','October',
242: 'November','December')[$month].' '.$year.'</h1>'.
243: '<a href="/adm/announcements?month='.$pm.'&year='.$py.'">Previous Month</a> '.
244: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.'">Next Month</a><p>'.
245: '<table border="2" cols="7" rows="5"><tr><th>Sun</th><th>Mon</th>'.
246: '<th>Tue</th><th>Wed</th><th>Thu</th><th>Fri</th><th>Sat</th></tr>');
247:
248: my $tk=&Apache::loncommon::maketime(%firstday);
249: my $outp;
250: my $nm;
251:
252: # ---------------------------------------------------------------- Actual table
253: $r->print('<tr>');
254: for (my $i=0;$i<$weekday;$i++) { $r->print(&emptycell); }
255: for (my $i=$weekday;$i<=6;$i++) {
256: ($tk,$nm,$outp)=&showday($tk,%allcal);
257: $r->print($outp);
258: }
259: $r->print('</tr>');
260:
261: for (my $k=0;$k<=3;$k++) {
262: $r->print('<tr>');
263: for (my $i=0;$i<=6;$i++) {
264: ($tk,$nm,$outp)=&showday($tk,%allcal);
265: if ($month!=$nm) { $outp=&emptycell; }
266: $r->print($outp);
267: }
268: $r->print('</tr>');
269: }
270: # ------------------------------------------------------------------- End table
271: $r->print('</table>');
272: if ($allowed) { $r->print('</form>'); }
273: $r->print('<p>'.
274: '<a href="/adm/announcements?month='.$pm.'&year='.$py.'">Previous Month</a> '.
275: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.'">Next Month</a><p>'.
276: '</body></html>');
277: return OK;
278: }
279:
280: 1;
281: __END__
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