Annotation of loncom/homework/outputtags.pm, revision 1.39
1.13 albertel 1: # The LearningOnline Network with CAPA
2: # tags that create controlled output
3: #
1.39 ! foxr 4: # $Id: outputtags.pm,v 1.38 2005/04/07 06:56:22 albertel Exp $
1.13 albertel 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:
1.1 albertel 29: package Apache::outputtags;
30:
31: use strict;
32: use Apache::lonnet;
33: use POSIX qw(strftime);
34:
1.15 harris41 35: BEGIN {
1.35 albertel 36: &Apache::lonxml::register('Apache::outputtags',('displayduedate','displaytitle','displayweight','displaystudentphoto'));
1.20 albertel 37: }
38:
39: sub initialize_outputtags {
40: %Apache::outputtags::showonce=();
1.1 albertel 41: }
42:
1.39 ! foxr 43:
1.2 albertel 44: sub start_displayduedate {
1.20 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
46: my $result;
1.39 ! foxr 47:
! 48: # Different parts can have different due dates... so we keep a list
! 49: # of the parts for which we've displayed the duedate:
! 50:
1.20 albertel 51: if (exists($Apache::outputtags::showonce{'displayduedate'})) {
1.39 ! foxr 52: if (grep(/^\Q$Apache::inputtags::part\E$/,
! 53: @{$Apache::outputtags::showonce{'displayduedate'}})) {
! 54: return '';
! 55: }
1.10 albertel 56: }
1.39 ! foxr 57: push (@{$Apache::outputtags::showonce{'displayduedate'}},
! 58: $Apache::inputtags::part);
! 59:
1.20 albertel 60: my $status=$Apache::inputtags::status['-1'];
61: &Apache::lonxml::debug("got a $status in duedatebox");
1.32 albertel 62: my $style = &Apache::lonxml::get_param('style',$parstack,$safeeval);
1.20 albertel 63: if (($status =~ /CAN.*_ANSWER/) && ($target eq 'web')) {
64: my $id = $Apache::inputtags::part;
65: my $date = &Apache::lonnet::EXT("resource.$id.duedate");
66: &Apache::lonxml::debug("duedatebox found $date for $id");
1.39 ! foxr 67:
! 68: # Only show the due date if the current date is
! 69: # different from due date of the previous part. I think
! 70: # this is probably the best way to avoid due date clutter.
! 71:
! 72: my $showduedate = 1;
! 73: my $part_count = scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
! 74: if ($part_count > 1) {
! 75: my $prev_part_id = $Apache::outputtags::showonce{'displayduedate'}->[$part_count-2];
! 76: my $prev_due_date = &Apache::lonnet::EXT("resource.$prev_part_id.duedate");
! 77: if ($prev_due_date == $date) {
! 78: $showduedate = 0;
! 79: }
! 80: }
! 81:
! 82: if ($showduedate) {
! 83: if (lc($style) !~ 'plain') {
! 84: $result ='<table border="on"><tr><td>Due '.
! 85: &Apache::lonnavmaps::timeToHumanString($date).
! 86: '</td></tr></table>';
! 87: } else {
! 88: $result=&mt('Due').' '.&Apache::lonnavmaps::timeToHumanString($date);
! 89: }
1.32 albertel 90: }
1.20 albertel 91: } elsif ( $target eq 'edit' ) {
92: $result=&Apache::edit::tag_start($target,$token);
93: $result.='</td></tr>';
94: $result.=&Apache::edit::end_table();
1.5 www 95: }
1.20 albertel 96: return $result;
1.1 albertel 97: }
98:
1.2 albertel 99: sub end_displayduedate {
1.20 albertel 100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
101: my @result;
102: if ($target eq 'edit') { $result[1]='no'; }
103: return @result;
1.2 albertel 104: }
105:
106: sub start_displaytitle {
1.20 albertel 107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
108: my $result='';
1.21 albertel 109: if (exists($Apache::outputtags::showonce{'displayduetitle'})) {
1.20 albertel 110: return '';
111: } else {
1.21 albertel 112: $Apache::outputtags::showonce{'displayduetitle'}=1;
1.20 albertel 113: }
1.31 albertel 114: my $name=&Apache::structuretags::get_resource_name();
1.32 albertel 115: my $style = &Apache::lonxml::get_param('style',$parstack,$safeeval);
1.20 albertel 116: if ($target eq 'web') {
1.32 albertel 117: $result=$name;
118: if (lc($style) !~ 'plain') { $result="<h1>$name</h1>"; }
1.20 albertel 119: } elsif ($target eq 'edit') {
120: $result=&Apache::edit::tag_start($target,$token);
121: $result.='</td></tr>';
122: $result.=&Apache::edit::end_table();
1.25 sakharuk 123: } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
1.31 albertel 124: $name=&Apache::lonxml::latex_special_symbols($name);
1.32 albertel 125: if (lc($style) !~ 'plain') {
126: $result='\vskip 0 mm\noindent\textbf{'.$name.'}\vskip 0 mm';
127: } else {
128: $result=$name;
129: }
1.20 albertel 130: }
131: return $result;
1.2 albertel 132: }
133:
134: sub end_displaytitle {
1.22 albertel 135: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
136: my @result;
137: if ($target eq 'edit') { $result[1]='no'; }
138: return @result;
139: }
140:
1.29 albertel 141: sub multipart {
142: my ($uri)=@_;
1.38 albertel 143: if (!defined($uri)) { $uri=$env{'request.uri'}; }
1.29 albertel 144: my @parts;
145: my $metadata = &Apache::lonnet::metadata($uri,'packages');
146: foreach (split(/\,/,$metadata)) {
147: if ($_ =~ /^part_(.*)$/) {
148: my $part = $1;
149: if ($part ne '0') { push(@parts,$part); }
150: }
151: }
152: return @parts;
153: }
154:
1.22 albertel 155: sub start_displayweight {
156: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
157: my $result;
158: if (exists($Apache::outputtags::showonce{'displayweight'})) {
1.26 albertel 159: if(grep(/^\Q$Apache::inputtags::part\E$/,
160: @{$Apache::outputtags::showonce{'displayweight'}})) {
161: return '';
162: }
1.22 albertel 163: }
1.26 albertel 164: push(@{$Apache::outputtags::showonce{'displayweight'}},
165: $Apache::inputtags::part);
1.24 albertel 166: if ($target eq 'web' || $target eq 'tex') {
1.22 albertel 167: my $id = $Apache::inputtags::part;
1.27 albertel 168: if ($id ne '0') {
169: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
170: if (!defined($weight) || ($weight eq '')) { $weight=1; }
171: $result.=$weight;
172: } else {
1.38 albertel 173: my @parts=&multipart($env{'request.uri'});
1.27 albertel 174: my $weight;
1.30 albertel 175: if (@parts) {
176: foreach my $part (@parts) {
177: my $pweight=&Apache::lonnet::EXT("resource.$part.weight");
178: if (!defined($pweight) || ($pweight eq '')) { $pweight=1; }
179: $weight+=$pweight;
180: }
181: } else {
182: $weight = &Apache::lonnet::EXT("resource.$id.weight");
183: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1.27 albertel 184: }
185: $result=$weight;
186: }
1.22 albertel 187: } elsif ( $target eq 'edit' ) {
188: $result=&Apache::edit::tag_start($target,$token);
189: $result.='</td></tr>';
190: $result.=&Apache::edit::end_table();
191: }
192: return $result;
193: }
194:
195: sub end_displayweight {
1.20 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
197: my @result;
198: if ($target eq 'edit') { $result[1]='no'; }
199: return @result;
1.1 albertel 200: }
201:
1.35 albertel 202: sub start_displaystudentphoto {
203: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
204: my $result;
205: my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.38 albertel 206: if ($target eq 'web' && $user eq $env{'user.name'}) {
1.37 albertel 207: my $url=&Apache::lonnet::studentphoto($domain,$user,"gif");
1.35 albertel 208: my $args;
209: my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);
210: if ($width) { $args.=" width=\"$width\" "; }
211: my $height=&Apache::lonxml::get_param('heigth',$parstack,$safeeval);
212: if ($height) { $args.=" height=\"$height\" "; }
1.36 albertel 213: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval);
214: if ($align) { $args.=" align=\"$align\" "; }
1.37 albertel 215: $result.=" <img $args src=\"$url\" alt=\"$user\@$domain\" />";
1.35 albertel 216: }
1.38 albertel 217: if ($target eq 'tex' && $env{'request.role'} =~ /^cc/) {
1.37 albertel 218: my $url=&Apache::lonnet::studentphoto($domain,$user,"eps");
1.35 albertel 219: my $ua=new LWP::UserAgent;
1.37 albertel 220: my $request=new HTTP::Request('GET',$url);
1.35 albertel 221: my $response=$ua->request($request);
222: if ($response->is_success) {
223: my $file=$user."_".$domain."_studentphoto.eps";
224: open(FILE,">".$Apache::lonnet::perlvar{'lonPrtDir'}."/$file");
225: print FILE $response->content;
226: close(FILE);
227: my $width_param=&Apache::londefdef::image_size($Apache::lonnet::perlvar{'lonPrtDir'}."/$file",'0.3',$parstack,$safeeval);
228: $result.=' \graphicspath{{'.$Apache::lonnet::perlvar{'lonPrtDir'}.
229: '}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.36 albertel 230: } else {
231: $result="$user\@$domain";
1.35 albertel 232: }
233: }
234: return $result;
235: }
236:
237: sub end_displaystudentphoto {
238: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
239: my @result;
240: if ($target eq 'edit') { $result[1]='no'; }
241: return @result;
242: }
243:
1.1 albertel 244: 1;
245: __END__
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