File:
[LON-CAPA] /
rat /
lonpage.pm
Revision
1.136:
download - view:
text,
annotated -
select for diffs
Thu Mar 5 16:45:32 2020 UTC (4 years, 1 month ago) by
raeburn
Branches:
MAIN
CVS tags:
HEAD
- Support jumping to an item in a composite page from the Contents listing:
(a) for resources without Info icon/link
(b) for rescource for which encrypturl is in use.
1: # The LearningOnline Network with CAPA
2: # Page Handler
3: #
4: # $Id: lonpage.pm,v 1.136 2020/03/05 16:45:32 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:
30:
31:
32:
33: package Apache::lonpage;
34:
35: use strict;
36: use Apache::Constants qw(:common :http);
37: use Apache::lonnet;
38: use Apache::loncommon();
39: use Apache::lonhtmlcommon;
40: use Apache::lonxml();
41: use Apache::lonlocal;
42: use Apache::lonmenu;
43: use Apache::lonhomework;
44: use Apache::lonparmset;
45: use Apache::lonenc();
46: use HTML::TokeParser;
47: use HTML::Entities();
48: use GDBM_File;
49: use Apache::lonsequence;
50: use lib '/home/httpd/lib/perl/';
51: use LONCAPA;
52:
53:
54: # -------------------------------------------------------------- Module Globals
55: my %hash;
56: my @rows;
57:
58: # ------------------------------------------------------------------ Euclid gcd
59:
60: sub euclid {
61: my ($e,$f)=@_;
62: my $a; my $b; my $r;
63: if ($e>$f) { $b=$e; $r=$f; } else { $r=$e; $b=$f; }
64: while ($r!=0) {
65: $a=$b; $b=$r;
66: $r=$a%$b;
67: }
68: return $b;
69: }
70:
71: # ------------------------------------------------------------ Build page table
72:
73: sub tracetable {
74: my ($sofar,$rid,$beenhere)=@_;
75: my $further=$sofar;
76: my $randomout=0;
77: unless ($env{'request.role.adv'}) {
78: $randomout = $hash{'randomout_'.$rid};
79: }
80: unless ($beenhere=~/\&$rid\&/) {
81: $beenhere.=$rid.'&';
82: unless ($randomout) {
83: if (defined($hash{'is_map_'.$rid})) {
84: if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) &&
85: (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) {
86: my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}};
87: $sofar=
88: &tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},
89: '&'.$frid.$beenhere);
90: $sofar++;
91: if ($hash{'src_'.$frid}) {
92: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid});
93: if (($brepriv eq '2') || ($brepriv eq 'F')) {
94: if (defined($rows[$sofar])) {
95: $rows[$sofar].='&'.$frid;
96: } else {
97: $rows[$sofar]=$frid;
98: }
99: }
100: }
101: }
102: } else {
103: $sofar++;
104: if ($hash{'src_'.$rid}) {
105: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid});
106: if (($brepriv eq '2') || ($brepriv eq 'F')) {
107: if (defined($rows[$sofar])) {
108: $rows[$sofar].='&'.$rid;
109: } else {
110: $rows[$sofar]=$rid;
111: }
112: }
113: }
114: }
115: }
116:
117: if (defined($hash{'to_'.$rid})) {
118: my $mincond=1;
119: my $next='';
120: foreach (split(/\,/,$hash{'to_'.$rid})) {
121: my $thiscond=
122: &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
123: if ($thiscond>=$mincond) {
124: if ($next) {
125: $next.=','.$_.':'.$thiscond;
126: } else {
127: $next=$_.':'.$thiscond;
128: }
129: if ($thiscond>$mincond) { $mincond=$thiscond; }
130: }
131: }
132: foreach (split(/\,/,$next)) {
133: my ($linkid,$condval)=split(/\:/,$_);
134: if ($condval>=$mincond) {
135: my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere);
136: if ($now>$further) { $further=$now; }
137: }
138: }
139: }
140: }
141: return $further;
142: }
143:
144: # ================================================================ Main Handler
145:
146: sub handler {
147: my $r=shift;
148:
149: # ------------------------------------------- Set document type for header only
150:
151: if ($r->header_only) {
152: if ($env{'browser.mathml'}) {
153: &Apache::loncommon::content_type($r,'text/xml');
154: } else {
155: &Apache::loncommon::content_type($r,'text/html');
156: }
157: $r->send_http_header;
158: return OK;
159: }
160:
161: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
162: ['forceselect','launch']);
163: my $number_of_columns = 1;
164: my $requrl=$r->uri;
165: my $target = $env{'form.grade_target'};
166:
167: # Short term solution: define target as 'tex_answer' when retrieving answers
168: # for resources in a .page when generating printouts.
169: # A better long-term fix would be to modify the way problem rendering, and
170: # answer rendering are retrieved for individual resources when printing a .page,
171: # so rendered problem and answer are sequential for individual resources in
172: # the .page
173: #
174: if ($target eq 'answer') {
175: if ($env{'form.answer_output_mode'} eq 'tex') {
176: $target = 'tex_answer';
177: }
178: }
179: # &Apache::lonnet::logthis("Got a target of $target");
180: if ($target eq 'meta') {
181: &Apache::loncommon::content_type($r,'text/html');
182: $r->send_http_header;
183: return OK;
184: }
185: # ----------------------------------------------------------------- Tie db file
186: if (($env{'request.course.fn'}) && (!$env{'form.forceselect'})) {
187: my $fn=$env{'request.course.fn'};
188: if (-e "$fn.db") {
189: my %buttonshide;
190: my $hostname = $r->hostname();
191: my $lonhost = $r->dir_config('lonHostID');
192: my $ip = &Apache::lonnet::get_host_ip($lonhost);
193: if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) {
194: # ------------------------------------------------------------------- Hash tied
195: my $firstres=$hash{'map_start_'.$requrl};
196: my $lastres=$hash{'map_finish_'.$requrl};
197: if (($firstres) && ($lastres)) {
198: # ------------------------------------------------------------- Countdown Timer
199: my $now = time;
200: my ($pagefirstaccess,%hastimeleft,%countdowndisp,%donebutton,
201: %donebtnextra,%buttonbytime,$donetime,$symbtosetdone);
202: my ($pagesymb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
203: unless ($pagesymb) {
204: $pagesymb=&Apache::lonnet::symbread($requrl);
205: }
206: if ($pagesymb && ($courseid ne '') && ($domain ne '') && ($name ne '')) {
207: my %times=&Apache::lonnet::get('firstaccesstimes',
208: [$courseid."\0".$pagesymb],
209: $domain,$name);
210: if ($times{$courseid."\0".$pagesymb} =~ /^\d+$/) {
211: $pagefirstaccess = $times{$courseid."\0".$pagesymb};
212: if ($pagefirstaccess && $env{'form.LC_interval_done'} eq 'true') {
213: $donetime = $now - $pagefirstaccess;
214: }
215: }
216: }
217:
218: # ----------------------------------------------------------------- Render page
219:
220: @rows=();
221:
222: &tracetable(0,$firstres,'&');
223:
224: # ------------------------------------------------------------ Add to symb list
225:
226: my $i;
227: my %symbhash=();
228: for ($i=0;$i<=$#rows;$i++) {
229: if ($rows[$i]) {
230: my @colcont=split(/\&/,$rows[$i]);
231: foreach my $rid (@colcont) {
232: my ($mapid,$resid)=split(/\./,$rid);
233: $symbhash{$hash{'src_'.$rid}}=
234: [$hash{'src_'.$rid},$resid];
235: if (($donetime) && ($symbtosetdone eq '')) {
236: my $src = $hash{'src_'.$rid};
237: if ($hash{'encrypted_'.$rid}) {
238: $src=&Apache::lonenc::encrypted($src);
239: }
240: my ($mapid,$resid)=split(/\./,$rid);
241: my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$src);
242: if ($src =~ /$LONCAPA::assess_re/) {
243: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
244: if (@interval > 1) {
245: if (($interval[1] eq 'map') && ($pagefirstaccess)) {
246: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
247: if ($timelimit) {
248: if ($pagefirstaccess + $timelimit > $now) {
249: $symbtosetdone = $symb;
250: }
251: }
252: }
253: }
254: }
255: }
256: }
257: }
258: }
259: &Apache::lonnet::symblist($requrl,%symbhash);
260:
261: # ------------------------------------------------------------------ Page parms
262:
263: my $j;
264: my $lcm=1;
265: my $contents=0;
266: my $nforms=0;
267: my $nuploads=0;
268: my $ntimers=0;
269: my %turninpaths;
270: my %multiresps;
271: my $turninparent;
272:
273: my %ssibody=();
274: my %ssibgcolor=();
275: my %ssitext=();
276: my %ssilink=();
277: my %ssivlink=();
278: my %ssialink=();
279:
280: my %cellemb=();
281: my %cellexternal=();
282:
283: my $allscript='';
284: my $allmeta='';
285:
286: my $isxml=0;
287: my $xmlheader='';
288: my $xmlbody='';
289:
290: # ---------------------------------------------------------- Handle Done button
291:
292: # Set the event timer to zero if the "done button" was clicked.
293: if ($donetime && $symbtosetdone) {
294: &Apache::lonparmset::storeparm_by_symb_inner($symbtosetdone,'0_interval',
295: 2,$donetime,'date_interval',
296: $name,$domain);
297: undef($env{'form.LC_interval_done'});
298: }
299:
300: # --------------------------------------------- Get SSI output, post parameters
301:
302: for ($i=0;$i<=$#rows;$i++) {
303: if ($rows[$i]) {
304: $contents++;
305: my @colcont=split(/\&/,$rows[$i]);
306: $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
307: foreach (@colcont) {
308: my $src=$hash{'src_'.$_};
309: my $plainsrc = $src;
310: my $anchor;
311: if ($hash{'ext_'.$_} eq 'true:') {
312: $cellexternal{$_}=($hash{'ext_'.$_} eq 'true:');
313: $src =~ s{^/ext/}{http://};
314: $src =~ s{http://https://}{https://};
315: if ($src =~ /(\#[^#]+)$/) {
316: $anchor = $1;
317: $src =~ s/\#[^#]+$//;
318: }
319: }
320: my $unencsrc = $src;
321: my ($extension)=($src=~/\.(\w+)$/);
322: if ($hash{'encrypted_'.$_}) {
323: $src=&Apache::lonenc::encrypted($src);
324: }
325: my ($mapid,$resid)=split(/\./,$_);
326: my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$plainsrc);
327: unless ($env{'request.role.adv'}) {
328: $buttonshide{$symb} = &Apache::lonnet::EXT("resource.0.buttonshide",$symb);
329: }
330: $cellemb{$_}=
331: &Apache::loncommon::fileembstyle($extension);
332: if ($cellexternal{$_}) {
333: if (($target eq 'tex') || ($target eq 'tex_answer')) {
334: my $shown = $src.$anchor;
335: if (($hash{'encrypted_'.$_}) && (!$env{'request.role.adv'})) {
336: $shown = &mt('URL not shown (encrypted)');
337: }
338: my $title=&Apache::lonnet::gettitle($symb);
339: $title = &Apache::lonxml::latex_special_symbols($title);
340: $shown = &Apache::lonxml::latex_special_symbols($shown);
341: $ssibody{$_} = ' \strut \\\\ \textit{'.$title.'} \strut \\\\ '.$shown.'\\\\';
342: } else {
343: my $showsrc = $src;
344: my ($is_pdf,$title,$linktext);
345: if ($unencsrc =~ /\.pdf$/i) {
346: $is_pdf = 1;
347: }
348: if (($hash{'encrypted_'.$_}) && ($symb)) {
349: $title=&Apache::lonnet::gettitle(&Apache::lonenc::encrypted($symb));
350: } else {
351: $title=&Apache::lonnet::gettitle($symb);
352: }
353: if ($env{'browser.mobile'}) {
354: if ($is_pdf) {
355: $linktext = &mt('Link to PDF (for mobile devices)');
356: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
357: } else {
358: $linktext = &mt('Link to resource');
359: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
360: }
361: } else {
362: my $absolute = $env{'request.use_absolute'};
363: my $uselink = &Apache::loncommon::is_nonframeable($unencsrc,$absolute,$hostname,$ip);
364: if (($uselink) || (($ENV{'SERVER_PORT'} == 443) && ($unencsrc =~ m{^http://}))) {
365: $linktext = &mt('Link to resource');
366: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
367: } else {
368: if (($hash{'encrypted_'.$_}) && ($symb) && (!$env{'request.role.adv'})) {
369: $showsrc .= '?symb='.&Apache::lonenc::encrypted($symb);
370: } elsif ($anchor) {
371: $showsrc .= $anchor
372: }
373: $ssibody{$_} = <<ENDEXT;
374: <iframe src="$showsrc" width="100%" height="300px">No iframe support!</iframe>
375: ENDEXT
376: }
377: }
378: }
379: } elsif ($cellemb{$_} eq 'ssi') {
380: # --------------------------------------------------------- This is an SSI cell
381: my $prefix='p_'.$_.'_';
382: my $idprefix= 'p_'.join('_',($mapid,$resid,''));
383: my %posthash=('request.prefix' => $prefix,
384: 'LONCAPA_INTERNAL_no_discussion' => 'true',
385: 'symb' => $symb);
386: if (($env{'form.grade_target'} eq 'tex') ||
387: ($env{'form.answer_output_mode'} eq 'tex')) {
388: $posthash{'grade_target'}=$env{'form.grade_target'};
389: $posthash{'textwidth'}=$env{'form.textwidth'};
390: $posthash{'problem_split'}=$env{'form.problem_split'};
391: $posthash{'latex_type'}=$env{'form.latex_type'};
392: $posthash{'rndseed'}=$env{'form.rndseed'};
393: $posthash{'answer_output_mode'} = $env{'form.answer_output_mode'};
394: }
395: my $submitted=$env{'form.all_submit_pressed'};
396: if (!$submitted) {
397: foreach my $key (keys(%env)) {
398: if ($key=~/^\Qform.$prefix\Esubmit_(.+)_pressed$/) {
399: if ($env{$key}) {
400: $submitted=1;
401: last;
402: }
403: }
404: }
405: }
406: if ($submitted) {
407: foreach my $key (keys(%env)) {
408: if ($key=~/^\Qform.$prefix\E/) {
409: my $name=$key;
410: $name=~s/^\Qform.$prefix\E//;
411: $posthash{$name}=$env{$key};
412: }
413: }
414: if ($env{'form.all_submit_pressed'}) {
415: $posthash{'all_submit'}='yes';
416: }
417: } elsif ($env{'form.'.$prefix.'markaccess'} eq 'yes') {
418: $posthash{'markaccess'} = $env{'form.'.$prefix.'markaccess'};
419: }
420: my $output=Apache::lonnet::ssi($src,%posthash);
421: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
422: if (($target eq 'tex') || ($target eq 'tex_answer')) {
423: $output =~ s/^([^&]+)\\begin\{document}//;
424: $output =~ s/\\end\{document}//;
425: # $output = '\parbox{\minipagewidth}{ '.$output.' }';
426: #some additional cleanup necessary for LateX (due to limitations of table environment
427: $output =~ s/(\\vskip\s*\d+mm)\s*(\\\\)+/$1/g;
428: }
429: my $matheditor;
430: if ($output =~ /\Qjavascript:LC_mathedit_HWVAL_\E/) {
431: $matheditor = 'dragmath';
432: } elsif ($output =~ /LCmathField/) {
433: $matheditor = 'lcmath';
434: }
435: my $parser=HTML::TokeParser->new(\$output);
436: my $token;
437: my $thisdir=$src;
438: my $bodydef=0;
439: my $thisxml=0;
440: my @rlinks=();
441: if ($output=~/\?xml/) {
442: $isxml=1;
443: $thisxml=1;
444: $output=~
445: /((?:\<(?:\?xml|\!DOC|html)[^\>]*(?:\>|\>\]\>)\s*)+)\<body[^\>]*\>/si;
446: $xmlheader=$1;
447: }
448: while ($token=$parser->get_token) {
449: if ($token->[0] eq 'S') {
450: if ($token->[1] eq 'a') {
451: if ($token->[2]->{'href'}) {
452: $rlinks[$#rlinks+1]=
453: $token->[2]->{'href'};
454: }
455: } elsif ($token->[1] eq 'img') {
456: $rlinks[$#rlinks+1]=
457: $token->[2]->{'src'};
458: } elsif ($token->[1] eq 'embed') {
459: $rlinks[$#rlinks+1]=
460: $token->[2]->{'src'};
461: } elsif ($token->[1] eq 'base') {
462: $thisdir=$token->[2]->{'href'};
463: } elsif ($token->[1] eq 'body') {
464: $bodydef=1;
465: $ssibgcolor{$_}=$token->[2]->{'bgcolor'};
466: $ssitext{$_}=$token->[2]->{'text'};
467: $ssilink{$_}=$token->[2]->{'link'};
468: $ssivlink{$_}=$token->[2]->{'vlink'};
469: $ssialink{$_}=$token->[2]->{'alink'};
470: if ($thisxml) {
471: $xmlbody=$token->[4];
472: }
473: } elsif ($token->[1] eq 'meta') {
474: if ($token->[4] !~ m:/>$:) {
475: $allmeta.="\n".$token->[4].'</meta>';
476: } else {
477: $allmeta.="\n".$token->[4];
478: }
479: } elsif (($token->[1] eq 'script') &&
480: ($bodydef==0)) {
481: $allscript.="\n\n"
482: .$parser->get_text('/script');
483: }
484: }
485: }
486: if ($output=~/\<body[^\>]*\>(.*)/si) {
487: $output=$1;
488: }
489: $output=~s/\<\/body\>.*//si;
490: if ($output=~/\<form/si) {
491: my $hastimer;
492: $nforms++;
493: $output=~s/\<form[^\>]*\>//gsi;
494: $output=~s/\<\/form[^\>]*\>//gsi;
495: if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*HWFILE/) {
496: $nuploads++;
497: }
498: if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*accessbutton/) {
499: $ntimers++;
500: $hastimer = 1;
501: }
502: $output=~
503: s/\<((?:input|select|button|textarea)[^\>]+)name\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 name="$prefix$2" $3\>/gsi;
504: $output=~
505: s/\<((?:input|select|button|textarea)[^\>]+)id\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 id="$idprefix$2" $3\>/gsi;
506: $output=~
507: s/(\Qthis.form.elements['\E)(HW(?:VAL|CHK)_[^']+\'\]\.(?:value=\'|checked))/$1$prefix$2/gsi;
508: if ($hastimer) {
509: $output=~
510: s/\<(input[^\>]+name=\Q"$prefix\Eaccessbutton"[^\>]+)(?:\Qdocument.markaccess.submit();\E)([^\>]*)\>/\<$1pageTimer(this.form,'$prefix')$2\>/gsi;
511: $output=~ s/\<(input[^\>]+name=\Q"$prefix\Emarkaccess"[^\>]+value=["'])(?:yes)(['"][^\>]*)\>/\<$1$2\>/gsi;
512: }
513: if ($matheditor eq 'dragmath') {
514: $output=~
515: s/(\Qjavascript:LC_mathedit_\E)(HWVAL_)([^'"]+?)(\(['"]*)(\QHWVAL_\E\3['"]\)\;void\(0\)\;)/$1$idprefix$2$3$4$idprefix$5/g;
516: $output=~
517: s/(function\s+LC_mathedit_)(HWVAL_)([^'"]+?)(\s+\(LCtextline\))/$1$idprefix$2$3$4/g;
518: } elsif ($matheditor eq 'lcmath') {
519: $output=~
520: s/(var\s+LCmathField\s+=\s+document\.getElementById\(['"])([^'"]+?)(['"]\)\;)/$1$idprefix$2$3/g;
521: }
522: $output=~
523: s/(\Q<div id="msg_\E)(\Qsubmit_\E)([^"]*)(\Q" style="display:none">\E)/<input type="hidden" name="$prefix$2$3_pressed" id="$idprefix$2$3_pressed" value="" \/>$1$idprefix$2$3$4/g;
524: $output=~
525: s/(\Q<td class="LC_status_\E)(\Qsubmit_\E)([^\"]*)(\s*[^\"]*"\>)/$1$idprefix$2$3$4/g;
526: if ($nuploads) {
527: ($turninpaths{$prefix},$multiresps{$prefix}) =
528: &Apache::loncommon::get_turnedin_filepath($symb,$env{'user.name'},$env{'user.domain'});
529: if ($turninparent eq '') {
530: $turninparent = $turninpaths{$prefix};
531: $turninparent =~ s{(/[^/]+)$}{};
532: }
533: }
534: $output=~
535: s/\<((?:input|select)[^\>]+\Qjavascript:setSubmittedPart\E)\(\s*[\'\"]([^\'\"]+)[\'\"]*\s*\)/\<$1('$2','$prefix')/gsi;
536: $output=~
537: s/\<(input[^\>]+\Qonfocus=\"javascript:disableAutoComplete\E)\(\'([^\']+)\'\)(;\")/\<$1('$idprefix$2')$3/gsi;
538: unless ($hastimer) {
539: if ($plainsrc =~ /$LONCAPA::assess_re/) {
540: %Apache::lonhomework::history =
541: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
542: my $type = 'problem';
543: if ($extension eq 'task') {
544: $type = 'Task';
545: }
546: my ($status,$accessmsg,$slot_name,$slot) =
547: &Apache::lonhomework::check_slot_access('0',$type,$symb);
548: undef(%Apache::lonhomework::history);
549: my $probstatus = &Apache::lonnet::EXT("resource.0.problemstatus",$symb);
550: if (($status eq 'CAN_ANSWER') || (($status eq 'CANNOT_ANSWER') &&
551: (($probstatus eq 'no') || ($probstatus eq 'no_feedback_ever'))) ||
552: (($status eq 'NOT_YET_VIEWED') && ($posthash{'markaccess'} eq 'yes'))) {
553: my ($slothastime,$timerhastime);
554: if ($slot_name ne '') {
555: if (ref($slot) eq 'HASH') {
556: if (($slot->{'starttime'} < $now) &&
557: ($slot->{'endtime'} > $now)) {
558: $slothastime = $now - $slot->{'endtime'};
559: }
560: }
561: }
562: my $duedate = &Apache::lonnet::EXT("resource.0.duedate",$symb);
563: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
564: if (@interval > 1) {
565: my $first_access;
566: if ($interval[1] eq 'map') {
567: my $ignorecache;
568: if ($env{'form.'.$prefix.'markaccess'} eq 'yes') {
569: $ignorecache = 1;
570: }
571: $first_access=&Apache::lonnet::get_first_access($interval[1],undef,$pagesymb,$ignorecache);
572: if (($first_access) && (!$pagefirstaccess)) {
573: $pagefirstaccess = $first_access;
574: }
575: } else {
576: $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
577: }
578: if ($first_access > 0) {
579: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
580: if ($timelimit) {
581: my $timeremains = $timelimit + $first_access - $now;
582: if ($timeremains > 0) {
583: $timerhastime = $timeremains;
584: }
585: }
586: }
587: }
588: if (($duedate && $duedate > $now) ||
589: (!$duedate && $timerhastime > 0) ||
590: ($slot_name ne '' && $slothastime)) {
591: if ((@interval > 1 && $timerhastime) ||
592: ($type eq 'Task' && $slothastime)) {
593: $countdowndisp{$symb} = 'inline';
594: if ((@interval > 1) && ($timerhastime)) {
595: $hastimeleft{$symb} = $timerhastime;
596: if ($pagefirstaccess) {
597: my ($timelimit,$usesdone,$donebuttontext,$proctor,$secret);
598: ($timelimit,my $donesuffix) = split(/_/,$interval[0],2);
599: if ($donesuffix =~ /^done\:([^\:]+)\:(.*)$/) {
600: $usesdone = 'done';
601: $donebuttontext = $1;
602: (undef,$proctor,$secret) = split(/_/,$2);
603: } elsif ($donesuffix =~ /^done(|_.+)$/) {
604: $donebuttontext = &mt('Done');
605: ($usesdone,$proctor,$secret) = split(/_/,$donesuffix);
606: }
607: if ($usesdone eq 'done') {
608: $donebutton{$symb} = $timelimit;
609: push(@{$buttonbytime{$timelimit}},$symb);
610: $donebtnextra{$symb} = {
611: text => $donebuttontext,
612: proctor => $proctor,
613: secret => $secret,
614: type => $interval[1],
615: };
616: }
617: }
618: } else {
619: $hastimeleft{$symb} = $slothastime;
620: }
621: } else {
622: $hastimeleft{$symb} = $duedate - $now;
623: $countdowndisp{$symb} = 'none';
624: }
625: unless ($donebutton{$symb}) {
626: $donebutton{$symb} = 0;
627: }
628: }
629: }
630: }
631: }
632: }
633: $thisdir=~s/\/[^\/]*$//;
634: foreach (@rlinks) {
635: unless (($_=~/^https?\:\/\//i) ||
636: ($_=~/^\//) ||
637: ($_=~/^javascript:/i) ||
638: ($_=~/^mailto:/i) ||
639: ($_=~/^\#/)) {
640: my $newlocation=
641: &Apache::lonnet::hreflocation($thisdir,$_);
642: $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
643: }
644: }
645: # -------------------------------------------------- Deal with Applet codebases
646: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
647: $ssibody{$_}=$output;
648: # ---------------------------------------------------------------- End SSI cell
649: }
650: }
651: }
652: }
653: unless ($contents) {
654: &Apache::loncommon::content_type($r,'text/html');
655: $r->send_http_header;
656: $r->print(&Apache::loncommon::start_page(undef,undef,
657: {'force_register' => 1,}));
658: $r->print(&mt('This page is either empty or it only contains resources that are currently hidden').'. ');
659: $r->print('<br /><br />'.&mt('Please use the LON-CAPA navigation arrows to move to another item in the course').
660: &Apache::loncommon::end_page());
661: } else {
662: # ------------------------------------------------------------------ Build page
663:
664: # ---------------------------------------------------------------- Send headers
665: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
666: if ($isxml) {
667: &Apache::loncommon::content_type($r,'text/xml');
668: } else {
669: &Apache::loncommon::content_type($r,'text/html');
670: }
671: $r->send_http_header;
672: # ------------------------------------------------------------------------ Head
673: if ($allscript) {
674: $allscript =
675: "\n".'<script type="text/javascript">'."\n".
676: $allscript.
677: "\n</script>\n";
678: }
679: if (($nforms) && ($nuploads)) {
680: $allscript .= &Apache::lonhtmlcommon::file_submissionchk_js(\%turninpaths,\%multiresps).
681: '<script type="text/javascript" '.
682: 'src="/res/adm/includes/file_upload.js"></script>';
683: }
684: if (($nforms) && (&Apache::lonhtmlcommon::htmlareabrowser())) {
685: my %textarea_args = (
686: dragmath => 'math',
687: );
688: $allscript .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
689: }
690: if ($ntimers) {
691: $allscript .= '<script type="text/javascript">'."\n".
692: '// <![CDATA['."\n".
693: 'function pageTimer(form,prefix) {'."\n".
694: " form.elements[prefix+'markaccess'].value = 'yes';\n".
695: " form.submit();\n".
696: '}'."\n".
697: '// ]]>'.
698: "\n</script>\n";
699: }
700: &Apache::lonhtmlcommon::clear_breadcrumb_tools();
701: if (keys(%hastimeleft)) {
702: my (%uniquetimes,%uniquedisplays);
703: foreach my $item (values(%hastimeleft)) {
704: if (exists($uniquetimes{$item})) {
705: $uniquetimes{$item} ++;
706: } else {
707: $uniquetimes{$item} = 1;
708: }
709: }
710: if (scalar(keys(%uniquetimes)) == 1) {
711: my (%uniquedisplays,%uniquedones,$currdisp,$donebuttontime,
712: $donebuttonextras);
713: if (keys(%countdowndisp)) {
714: foreach my $item (values(%countdowndisp)) {
715: if (exists($uniquedisplays{$item})) {
716: $uniquedisplays{$item} ++;
717: } else {
718: $uniquedisplays{$item} = 1;
719: }
720: }
721: my @countdowndisplay = keys(%uniquedisplays);
722: if (scalar(@countdowndisplay) == 1) {
723: $currdisp = $countdowndisplay[0];
724: }
725: }
726: if (keys(%donebutton)) {
727: foreach my $item (values(%donebutton)) {
728: if (exists($uniquedones{$item})) {
729: $uniquedones{$item} ++;
730: } else {
731: $uniquedones{$item} = 1;
732: }
733: }
734: my @donebuttons = sort { $ <=> $b } (keys(%uniquedones));
735: if (scalar(@donebuttons) == 1) {
736: if ($donebuttons[0]) {
737: $donebuttontime = $donebuttons[0];
738: if (ref($buttonbytime{$donebuttontime}) eq 'ARRAY') {
739: $donebuttonextras = $donebtnextra{$buttonbytime{$donebuttontime}->[0]};
740: }
741: }
742: }
743: }
744: &add_countdown_timer($currdisp,$donebuttontime,$donebuttonextras);
745: }
746: }
747: my $pagebuttonshide;
748: if (keys(%buttonshide)) {
749: my %uniquebuttonhide;
750: foreach my $item (values(%buttonshide)) {
751: if (exists($uniquebuttonhide{$item})) {
752: $uniquebuttonhide{$item} ++;
753: } else {
754: $uniquebuttonhide{$item} = 1;
755: }
756: }
757: if (keys(%uniquebuttonhide) == 1) {
758: if (lc((keys(%uniquebuttonhide))[0]) eq 'yes') {
759: $pagebuttonshide = 'yes';
760: }
761: }
762: }
763: # ------------------------------------------------------------------ Start body
764: $r->print(&Apache::loncommon::start_page(undef,$allscript,
765: {'force_register' => 1,
766: 'bgcolor' => '#ffffff',
767: 'hide_buttons' => $pagebuttonshide}));
768: # ------------------------------------------------------------------ Start form
769: if ($nforms) {
770: my $fmtag = '<form name="lonhomework" method="post" enctype="multipart/form-data"';
771: if ($nuploads) {
772: my $multi;
773: if ($nuploads > 1) {
774: $multi = 1;
775: }
776: $fmtag .= 'onsubmit="return file_submission_check(this,'."'$turninparent','$multi'".');"';
777: }
778: $fmtag .= ' action="'.
779: &Apache::lonenc::check_encrypt($requrl)
780: .'" id="LC_page">';
781: $r->print($fmtag);
782: }
783: } elsif (($target eq 'tex') || ($target eq 'tex_answer')) {
784: # I think this is not needed as the header
785: # will be put in for each of the page parts
786: # by the londefdef.pm now that we are opening up
787: # the parts of a page.
788: #$r->print('\documentclass{article}
789: # \newcommand{\keephidden}[1]{}
790: # \usepackage[dvips]{graphicx}
791: # \usepackage{epsfig}
792: # \usepackage{calc}
793: # \usepackage{longtable}
794: # \begin{document}');
795: }
796: # ----------------------------------------------------------------- Start table
797: if (($target eq 'tex') || ($target eq 'tex_answer')) {
798: # # $r->print('\begin{longtable}INSERTTHEHEADOFLONGTABLE\endfirsthead\endhead ');
799: if ($number_of_columns le $lcm) {$number_of_columns=$lcm;};
800: } else {
801: $r->print('<table width="100%" cols="'.$lcm.'" border="0">');
802: }
803: # generate rows
804: for ($i=0;$i<=$#rows;$i++) {
805: if ($rows[$i]) {
806: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
807: $r->print("\n<tr>");
808: }
809: my @colcont=split(/\&/,$rows[$i]);
810: my $avespan=$lcm/($#colcont+1);
811: for ($j=0;$j<=$#colcont;$j++) {
812: my $rid=$colcont[$j];
813: my $metainfo =&get_buttons(\%hash,$rid,\%buttonshide,$hostname).'<br />';
814: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
815: $r->print('<td colspan="'.$avespan.'"');
816: }
817: if (($cellemb{$rid} eq 'ssi') || ($cellexternal{$rid})) {
818: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
819: if ($ssibgcolor{$rid}) {
820: $r->print(' bgcolor="'.
821: $ssibgcolor{$rid}.'"');
822: }
823: $r->print('>'.$metainfo.'<font');
824:
825: if ($ssitext{$rid}) {
826: $r->print(' text="'.$ssitext{$rid}.'"');
827: }
828: if ($ssilink{$rid}) {
829: $r->print(' link="'.$ssilink{$rid}.'"');
830: }
831: if ($ssitext{$rid}) {
832: $r->print(' vlink="'.$ssivlink{$rid}.'"');
833: }
834: if ($ssialink{$rid}) {
835: $r->print(' alink="'.$ssialink{$rid}.'"');
836: }
837: $r->print('>');
838: }
839: $r->print($ssibody{$rid});
840: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
841: $r->print('</font>');
842: }
843: if ($env{'course.'.
844: $env{'request.course.id'}.
845: '.pageseparators'} eq 'yes') {
846: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
847: $r->print('<hr />');
848: }
849: }
850: } elsif ($cellemb{$rid} eq 'img') {
851: $r->print('>'.$metainfo.'<img src="'.
852: $hash{'src_'.$rid}.'" />');
853: } elsif ($cellemb{$rid} eq 'emb') {
854: $r->print('>'.$metainfo.'<embed src="'.
855: $hash{'src_'.$rid}.'"></embed>');
856: } elsif (&Apache::lonnet::declutter($hash{'src_'.$rid}) !~/\.(sequence|page)$/) {
857: $r->print($metainfo.'<b>'.$hash{'title_'.$rid}.'</b><br />');
858: unless ($cellemb{$rid} eq 'wrp') {
859: $r->print(&mt('It is recommended that you use an up-to-date virus scanner before handling this file.'));
860: }
861: $r->print('</p><p><table>'.
862: &Apache::londocs::entryline(0,
863: &mt("Click to download or use your browser's Save Link function"),
864: '/'.&Apache::lonnet::declutter($hash{'src_'.$rid})).
865: '</table></p><br />');
866: }
867: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
868: $r->print('</td>');
869: } else {
870: # for (my $incol=1;$incol<=$avespan;$incol++) {
871: # $r->print(' & ');
872: # }
873: }
874: }
875: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
876: $r->print('</tr>');
877: } else {
878: # $r->print('REMOVETHEHEADOFLONGTABLE\\\\');
879: }
880: }
881: }
882: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
883: $r->print("\n</table>");
884: } else {
885: # $r->print('\end{longtable}\strut');
886: }
887: # ---------------------------------------------------------------- Submit, etc.
888: if ($nforms) {
889: my $class;
890: if ($nforms > 1) {
891: $class = ' class="LC_hwk_submit"';
892: if ($ntimers) {
893: $nforms = 1;
894: $class = '';
895: }
896: }
897: $r->print(
898: '<input name="all_submit" value="'.&mt('Submit All').'" type="'.
899: (($nforms>1)?'submit':'hidden').'"'.$class.' id="all_submit" />'.
900: '<input type="hidden" name="all_submit_pressed" '.
901: 'id="all_submit_pressed" value="" />'.
902: '<div id="msg_all_submit" style="display:none">'.
903: &mt('Processing your submission ...').'</div></form>');
904: }
905: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
906: $r->print(&Apache::loncommon::end_page({'discussion'
907: => 1,}));
908: } else {
909: $r->print('\end{document}'.$number_of_columns);
910: }
911: &Apache::lonnet::symblist($requrl,%symbhash);
912: my ($map,$id,$url)=&Apache::lonnet::decode_symb(&Apache::lonnet::symbread());
913: &Apache::lonnet::symblist($map,'last_known'=>[$url,$id]);
914: # -------------------------------------------------------------------- End page
915: }
916: # ------------------------------------------------------------- End render page
917: } else {
918: &Apache::loncommon::content_type($r,'text/html');
919: $r->send_http_header;
920: &Apache::lonsequence::viewmap($r,$requrl);
921: }
922: # ------------------------------------------------------------------ Untie hash
923: unless (untie(%hash)) {
924: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
925: "Could not untie coursemap $fn (browse).</font>");
926: }
927: # -------------------------------------------------------------------- All done
928: return OK;
929: # ----------------------------------------------- Errors, hash could no be tied
930: }
931: }
932: }
933: &Apache::loncommon::content_type($r,'text/html');
934: $r->send_http_header;
935: &Apache::lonsequence::viewmap($r,$requrl);
936: return OK;
937: }
938:
939: sub get_buttons {
940: my ($hash,$rid,$buttonshide,$hostname) = @_;
941:
942: my ($mapid,$resid)=split(/\./,$rid);
943: my $symb=&Apache::lonnet::encode_symb($hash->{'map_id_'.$mapid},
944: $resid,
945: $hash->{'src_'.$rid});
946: my $aname;
947: if (($hash->{'encrypted_'.$rid}) && (!$env{'request.role.adv'})) {
948: $aname = 'LC_'.$rid;
949: } else {
950: $aname = &escape($symb);
951: }
952: my $metainfo = '<a name="'.$aname.'"></a>';
953: unless ($env{'request.role.adv'}) {
954: if ($buttonshide->{$symb} eq 'yes') {
955: return $metainfo;
956: }
957: }
958: my $crs_sec = $env{'request.course.id'} . (($env{'request.course.sec'} ne '')
959: ? "/$env{'request.course.sec'}"
960: : '');
961: my $esrc=&Apache::lonnet::declutter($hash->{'src_'.$rid});
962: if ($hash->{'encrypted_'.$rid}) {
963: $esrc=&Apache::lonenc::encrypted($esrc);
964: }
965: if ($hash->{'src_'.$rid} !~ m-^/uploaded/-
966: && $hash->{'src_'.$rid} !~ m{^/ext/}
967: && !$env{'request.enc'}
968: && ($env{'request.role.adv'}
969: || !$hash->{'encrypted_'.$rid})) {
970: $metainfo .='<a name="'.&escape($symb).'"></a>'.
971: '<a href="'.$hash->{'src_'.$rid}.'.meta'.'" target="LONcatInfo">'.
972: '<img src="/res/adm/pages/catalog.png" class="LC_icon"'.
973: ' alt="'.&mt('Show Metadata').'"'.
974: ' title="'.&mt('Show Metadata').'" />'.
975: '</a>';
976: }
977: if (($hash->{'src_'.$rid} !~ m{^/uploaded/}) &&
978: ($hash->{'src_'.$rid} !~ m{^/ext/})) {
979: $metainfo .= '<a href="/adm/evaluate?postdata='.
980: &escape($esrc).
981: '" target="LONcatInfo">'.
982: '<img src="/res/adm/pages/eval.png" class="LC_icon"'.
983: ' alt="'.&mt('Provide my evaluation of this resource').'"'.
984: ' title="'.&mt('Provide my evaluation of this resource').'" />'.
985: '</a>';
986: }
987: if (($hash->{'src_'.$rid}=~/$LONCAPA::assess_re/) &&
988: ($hash->{'src_'.$rid} !~ m-^/uploaded/-)) {
989:
990: if ((&Apache::lonnet::allowed('mgr',$crs_sec)) ||
991: (&Apache::lonnet::allowed('vgr',$crs_sec))) {
992: $metainfo.=
993: '<a href="/adm/grades?symb='.&escape($symb).
994: # '&command=submission" target="LONcatInfo">'.
995: '&command=submission">'.
996: '<img src="/adm/lonMisc/subm_button.png" class="LC_icon"'.
997: ' alt="'.&mt('View Submissions for a Student or a Group of Students').'"'.
998: ' title="'.&mt('View Submissions for a Student or a Group of Students').'" />'.
999: '</a>';
1000: }
1001: if (&Apache::lonnet::allowed('mgr',$crs_sec)) {
1002: $metainfo.=
1003: '<a href="/adm/grades?symb='.&escape($symb).
1004: # '&command=gradingmenu" target="LONcatInfo">'.
1005: '&command=gradingmenu">'.
1006: '<img src="/res/adm/pages/pgrd.png" class="LC_icon"'.
1007: ' alt="'.&mt('Content Grades').'"'.
1008: ' title="'.&mt('Content Grades').'" />'.
1009: '</a>';
1010: }
1011: if ((&Apache::lonnet::allowed('opa',$crs_sec)) ||
1012: (&Apache::lonnet::allowed('vpa',$crs_sec))) {
1013: $metainfo.=
1014: '<a href="/adm/parmset?symb='.&escape($symb).
1015: # '" target="LONcatInfo">'.
1016: '" >'.
1017: '<img src="/adm/lonMisc/pprm_button.png" class="LC_icon"'.
1018: ' alt="'.&mt('Content Settings').'"'.
1019: ' title="'.&mt('Content Settings').'" />'.
1020: '</a>';
1021: }
1022: }
1023: if ($env{'request.course.id'}) {
1024: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1025: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1026: my $file=&Apache::lonnet::declutter($hash->{'src_'.$rid});
1027: my $editbutton = '';
1028: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1029: my ($cfile,$home,$switchserver,$forceedit,$forceview) =
1030: &Apache::lonnet::can_edit_resource($file,$cnum,$cdom,$hash->{'src_'.$rid},$symb);
1031: if ($cfile ne '') {
1032: my $jscall = &Apache::lonhtmlcommon::jump_to_editres($cfile,$home,$switchserver,
1033: $forceedit,1,$symb,undef,
1034: &escape($env{'form.title'}),
1035: $hostname);
1036: if ($jscall) {
1037: $editbutton = 1;
1038: my $icon = 'pcstr.png';
1039: my $label = &mt('Edit');
1040: my $title = &mt('Edit this resource');
1041: my $pic = '<img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$icon).'"'.
1042: ' class="LC_icon" alt="'.$label.'" title="'.$title.'" />';
1043: $metainfo .= ' <a href="javascript:'.$jscall.';">'.$pic.'</a>';
1044: }
1045: }
1046: }
1047: if ((!$editbutton) && ($file=~/$LONCAPA::assess_re/)) {
1048: my $url = &Apache::lonnet::clutter($file);
1049: my $viewsrcbutton;
1050: if ((&Apache::lonnet::allowed('cre','/')) &&
1051: (&Apache::lonnet::metadata($url,'sourceavail') eq 'open')) {
1052: $viewsrcbutton = 1;
1053: } elsif (&Apache::lonnet::allowed('vxc',$crs_sec)) {
1054: if ($url =~ m{^\Q/res/$cdom/\E($LONCAPA::match_username)/}) {
1055: my $auname = $1;
1056: if (($env{'request.course.adhocsrcaccess'} ne '') &&
1057: (grep(/^\Q$auname\E$/,split(/,/,$env{'request.course.adhocsrcaccess'})))) {
1058: $viewsrcbutton = 1;
1059: } elsif ((&Apache::lonnet::metadata($url,'sourceavail') eq 'open') &&
1060: (&Apache::lonnet::allowed('bre',$crs_sec))) {
1061: $viewsrcbutton = 1;
1062: }
1063: }
1064: }
1065: if ($viewsrcbutton) {
1066: my $icon = 'pcstr.png';
1067: my $label = &mt('View Source');
1068: my $title = &mt('View source code');
1069: my $jsrid = $rid;
1070: $jsrid =~ s/\./_/g;
1071: my $showurl = &escape(&Apache::lonenc::check_encrypt($url));
1072: my $pic = '<img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$icon).'"'.
1073: ' class="LC_icon" alt="'.$label.'" title="'.$title.'" />';
1074: $metainfo .= ' <a href="javascript:open_source_'.$jsrid.'();">'.$pic.'</a>'."\n".
1075: '<script type="text/javascript">'."\n".
1076: "function open_source_$jsrid() {\n".
1077: " sourcewin=window.open('/adm/source?inhibitmenu=yes&viewonly=1&filename=$showurl','LONsource',".
1078: "'height=500,width=600,resizable=yes,location=no,menubar=no,toolbar=no,scrollbars=yes');\n".
1079: "}\n".
1080: "</script>\n";
1081: }
1082: }
1083: }
1084: return $metainfo;
1085: }
1086:
1087: sub add_countdown_timer {
1088: my ($currdisp,$donebuttontime,$donebuttonextras) = @_;
1089: my ($collapse,$expand,$alttxt,$title,$donebutton);
1090: if ($currdisp eq 'inline') {
1091: $collapse = '► ';
1092: } else {
1093: $expand = '◄ ';
1094: }
1095: if ($donebuttontime) {
1096: my ($type,$proctor,$donebuttontext);
1097: if (ref($donebuttonextras) eq 'HASH') {
1098: $proctor = $donebuttonextras->{'proctor'};
1099: $donebuttontext = $donebuttonextras->{'text'};
1100: $type = $donebuttonextras->{'type'};
1101: } else {
1102: $donebuttontext = &mt('Done');
1103: $type = 'map';
1104: }
1105: $donebutton =
1106: &Apache::lonmenu::done_button_js($type,'','',$proctor,$donebuttontext);
1107: }
1108: unless ($env{'environment.icons'} eq 'iconsonly') {
1109: $alttxt = &mt('Timer');
1110: $title = $alttxt.' ';
1111: }
1112: my $desc = &mt('Countdown to due date/time');
1113: my $output = <<END;
1114: $donebutton
1115: <a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
1116: <span id="ddcountcollapse" class="LC_menubuttons_inline_text">
1117: $collapse
1118: </span></a>
1119: <span id="duedatecountdown" class="LC_menubuttons_inline_text" style="display: $currdisp;"></span>
1120: <a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
1121: <span id="ddcountexpand" class="LC_menubuttons_inline_text" >$expand</span>
1122: <img src="/res/adm/pages/timer.png" title="$desc" class="LC_icon" alt="$alttxt" /><span class="LC_menubuttons_inline_text">$title</span></a>
1123: END
1124: &Apache::lonhtmlcommon::add_breadcrumb_tool('tools',$output);
1125: return;
1126: }
1127:
1128: sub create_extlink {
1129: my ($url,$anchor,$title,$linktext) = @_;
1130: my $shownlink;
1131: unless ($title eq '') {
1132: $shownlink = '<span style="font-weight:bold;">'.$title.'</span><br />';
1133: }
1134: my $dest = &HTML::Entities::encode($url.$anchor,'&<>"');
1135: $shownlink .= '<a href="'.$dest.'">'.$linktext.'</a>';
1136: return $shownlink;
1137: }
1138:
1139: 1;
1140: __END__
1141:
1142:
1143: =head1 NAME
1144:
1145: Apache::lonpage - Page Handler
1146:
1147: =head1 SYNOPSIS
1148:
1149: Invoked by /etc/httpd/conf/srm.conf:
1150:
1151: <LocationMatch "^/res/.*\.page$>
1152: SetHandler perl-script
1153: PerlHandler Apache::lonpage
1154: </LocationMatch>
1155:
1156: =head1 INTRODUCTION
1157:
1158: This module renders a .page resource.
1159:
1160: This is part of the LearningOnline Network with CAPA project
1161: described at http://www.lon-capa.org.
1162:
1163: =head1 HANDLER SUBROUTINE
1164:
1165: This routine is called by Apache and mod_perl.
1166:
1167: =over 4
1168:
1169: =item *
1170:
1171: set document type for header only
1172:
1173: =item *
1174:
1175: tie db file
1176:
1177: =item *
1178:
1179: render page
1180:
1181: =item *
1182:
1183: add to symb list
1184:
1185: =item *
1186:
1187: page parms
1188:
1189: =item *
1190:
1191: Get SSI output, post parameters
1192:
1193: =item *
1194:
1195: SSI cell rendering
1196:
1197: =item *
1198:
1199: Deal with Applet codebases
1200:
1201: =item *
1202:
1203: Build page
1204:
1205: =item *
1206:
1207: send headers
1208:
1209: =item *
1210:
1211: start body
1212:
1213: =item *
1214:
1215: start form
1216:
1217: =item *
1218:
1219: start table
1220:
1221: =item *
1222:
1223: submit element, etc, render page, untie hash
1224:
1225: =back
1226:
1227: =head1 OTHER SUBROUTINES
1228:
1229: =over 4
1230:
1231: =item *
1232:
1233: euclid() : Euclid's method for determining the greatest common denominator.
1234:
1235: =item *
1236:
1237: tracetable() : Build page table.
1238:
1239: =back
1240:
1241: =cut
1242:
1243:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonpage.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / rat