1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.208 2009/04/25 16:53:13 www 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: =pod
32:
33: =head1 NAME
34:
35: Apache::lonhtmlcommon - routines to do common html things
36:
37: =head1 SYNOPSIS
38:
39: Referenced by other mod_perl Apache modules.
40:
41: =head1 INTRODUCTION
42:
43: lonhtmlcommon is a collection of subroutines used to present information
44: in a consistent html format, or provide other functionality related to
45: html.
46:
47: =head2 General Subroutines
48:
49: =over 4
50:
51: =cut
52:
53: ######################################################################
54: ######################################################################
55:
56: package Apache::lonhtmlcommon;
57:
58: use strict;
59: use Time::Local;
60: use Time::HiRes;
61: use Apache::lonlocal;
62: use Apache::lonnet;
63: use LONCAPA;
64:
65: ##############################################
66: ##############################################
67:
68: =pod
69:
70: =item confirm_success
71:
72: Successful completion of an operation message
73:
74: =cut
75:
76: sub confirm_success {
77: my ($message)=@_;
78: return '<span class="LC_success_confirm">'.
79: $message.
80: ' <img src="/adm/lonIcons/navmap.correct.gif" /></span>';
81: }
82:
83: ##############################################
84: ##############################################
85:
86: =pod
87:
88: =item dragmath_button
89:
90: Creates a button that launches a dragmath popup-window, in which an
91: expression can be edited and pasted as LaTeX into a specified textarea.
92:
93: textarea - Name of the textarea to edit.
94: helpicon - If true, show a help icon to the right of the button.
95:
96: =cut
97:
98: sub dragmath_button {
99: my ($textarea,$helpicon) = @_;
100: my $help_text;
101: if ($helpicon) {
102: $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor');
103: }
104: my $buttontext=&mt('Edit Math');
105: return <<ENDDRAGMATH;
106: <input type="button" value="$buttontext", onclick="javascript:mathedit('$textarea',document)" />$help_text
107: ENDDRAGMATH
108: }
109:
110: ##############################################
111:
112: =pod
113:
114: =item dragmath_js
115:
116: Javascript used to open pop-up window containing dragmath applet which
117: can be used to paste LaTeX into a textarea.
118:
119: =cut
120:
121: sub dragmath_js {
122: my ($popup) = @_;
123: return <<ENDDRAGMATHJS;
124: <script type="text/javascript">
125: function mathedit(textarea, doc) {
126: targetEntry = textarea;
127: targetDoc = doc;
128: newwin = window.open("/adm/dragmath/applet/$popup.html","","width=565,height=500,resizable");
129: }
130: </script>
131:
132: ENDDRAGMATHJS
133: }
134:
135:
136: ##############################################
137: ##############################################
138:
139: =pod
140:
141: =item authorbombs
142:
143: =cut
144:
145: ##############################################
146: ##############################################
147:
148: sub authorbombs {
149: my $url=shift;
150: $url=&Apache::lonnet::declutter($url);
151: my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
152: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
153: foreach (keys %bombs) {
154: if ($_=~/^$udom\/$uname\//) {
155: return '<a href="/adm/bombs/'.$url.
156: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" border="0" /></a>'.
157: &Apache::loncommon::help_open_topic('About_Bombs');
158: }
159: }
160: return '';
161: }
162:
163: ##############################################
164: ##############################################
165:
166: sub recent_filename {
167: my $area=shift;
168: return 'nohist_recent_'.&escape($area);
169: }
170:
171: sub store_recent {
172: my ($area,$name,$value,$freeze)=@_;
173: my $file=&recent_filename($area);
174: my %recent=&Apache::lonnet::dump($file);
175: if (scalar(keys(%recent))>20) {
176: # remove oldest value
177: my $oldest=time();
178: my $delkey='';
179: foreach my $item (keys(%recent)) {
180: my $thistime=(split(/\&/,$recent{$item}))[0];
181: if (($thistime ne "always_include") && ($thistime<$oldest)) {
182: $oldest=$thistime;
183: $delkey=$item;
184: }
185: }
186: &Apache::lonnet::del($file,[$delkey]);
187: }
188: # store new value
189: my $timestamp;
190: if ($freeze) {
191: $timestamp = "always_include";
192: } else {
193: $timestamp = time();
194: }
195: &Apache::lonnet::put($file,{ $name =>
196: $timestamp.'&'.&escape($value) });
197: }
198:
199: sub remove_recent {
200: my ($area,$names)=@_;
201: my $file=&recent_filename($area);
202: return &Apache::lonnet::del($file,$names);
203: }
204:
205: sub select_recent {
206: my ($area,$fieldname,$event)=@_;
207: my %recent=&Apache::lonnet::dump(&recent_filename($area));
208: my $return="\n<select name='$fieldname'".
209: ($event?" onchange='$event'":'').
210: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
211: foreach my $value (sort(keys(%recent))) {
212: unless ($value =~/^error\:/) {
213: my $escaped = &Apache::loncommon::escape_url($value);
214: &Apache::loncommon::inhibit_menu_check(\$escaped);
215: $return.="\n<option value='$escaped'>".
216: &unescape((split(/\&/,$recent{$value}))[1]).
217: '</option>';
218: }
219: }
220: $return.="\n</select>\n";
221: return $return;
222: }
223:
224: sub get_recent {
225: my ($area, $n) = @_;
226: my %recent=&Apache::lonnet::dump(&recent_filename($area));
227:
228: # Create hash with key as time and recent as value
229: # Begin filling return_hash with any 'always_include' option
230: my %time_hash = ();
231: my %return_hash = ();
232: foreach my $item (keys %recent) {
233: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
234: if ($thistime eq 'always_include') {
235: $return_hash{$item} = &unescape($thisvalue);
236: $n--;
237: } else {
238: $time_hash{$thistime} = $item;
239: }
240: }
241:
242: # Sort by decreasing time and return key value pairs
243: my $idx = 1;
244: foreach my $item (reverse(sort(keys(%time_hash)))) {
245: $return_hash{$time_hash{$item}} =
246: &unescape((split(/\&/,$recent{$time_hash{$item}}))[1]);
247: if ($n && ($idx++ >= $n)) {last;}
248: }
249:
250: return %return_hash;
251: }
252:
253: sub get_recent_frozen {
254: my ($area) = @_;
255: my %recent=&Apache::lonnet::dump(&recent_filename($area));
256:
257: # Create hash with all 'frozen' items
258: my %return_hash = ();
259: foreach my $item (keys(%recent)) {
260: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
261: if ($thistime eq 'always_include') {
262: $return_hash{$item} = &unescape($thisvalue);
263: }
264: }
265: return %return_hash;
266: }
267:
268:
269:
270: =pod
271:
272: =item textbox
273:
274: =cut
275:
276: ##############################################
277: ##############################################
278: sub textbox {
279: my ($name,$value,$size,$special) = @_;
280: $size = 40 if (! defined($size));
281: $value = &HTML::Entities::encode($value,'<>&"');
282: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
283: 'value="'.$value.'" '.$special.' />';
284: return $Str;
285: }
286:
287: ##############################################
288: ##############################################
289:
290: =pod
291:
292: =item checkbox
293:
294: =cut
295:
296: ##############################################
297: ##############################################
298: sub checkbox {
299: my ($name,$checked,$value) = @_;
300: my $Str = '<input type="checkbox" name="'.$name.'" ';
301: if (defined($value)) {
302: $Str .= 'value="'.$value.'"';
303: }
304: if ($checked) {
305: $Str .= ' checked="checked"';
306: }
307: $Str .= ' />';
308: return $Str;
309: }
310:
311:
312: =pod
313:
314: =item radiobutton
315:
316: =cut
317:
318: ##############################################
319: ##############################################
320: sub radio {
321: my ($name,$checked,$value) = @_;
322: my $Str = '<input type="radio" name="'.$name.'" ';
323: if (defined($value)) {
324: $Str .= 'value="'.$value.'"';
325: }
326: if ($checked eq $value) {
327: $Str .= ' checked="checked"';
328: }
329: $Str .= ' />';
330: return $Str;
331: }
332:
333: ##############################################
334: ##############################################
335:
336: =pod
337:
338: =item &date_setter
339:
340: &date_setter returns html and javascript for a compact date-setting form.
341: To retrieve values from it, use &get_date_from_form().
342:
343: Inputs
344:
345: =over 4
346:
347: =item $dname
348:
349: The name to prepend to the form elements.
350: The form elements defined will be dname_year, dname_month, dname_day,
351: dname_hour, dname_min, and dname_sec.
352:
353: =item $currentvalue
354:
355: The current setting for this time parameter. A unix format time
356: (time in seconds since the beginning of Jan 1st, 1970, GMT.
357: An undefined value is taken to indicate the value is the current time.
358: Also, to be explicit, a value of 'now' also indicates the current time.
359:
360: =item $special
361:
362: Additional html/javascript to be associated with each element in
363: the date_setter. See lonparmset for example usage.
364:
365: =item $includeempty
366:
367: =item $state
368:
369: Specifies the initial state of the form elements. Either 'disabled' or empty.
370: Defaults to empty, which indiciates the form elements are not disabled.
371:
372: =back
373:
374: Bugs
375:
376: The method used to restrict user input will fail in the year 2400.
377:
378: =cut
379:
380: ##############################################
381: ##############################################
382: sub date_setter {
383: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
384: $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink) = @_;
385: my $now = time;
386: my $wasdefined=1;
387: if (! defined($state) || $state ne 'disabled') {
388: $state = '';
389: }
390: if (! defined($no_hh_mm_ss)) {
391: $no_hh_mm_ss = 0;
392: }
393: if ($currentvalue eq 'now') {
394: $currentvalue = $now;
395: }
396: if ((!defined($currentvalue)) || ($currentvalue eq '')) {
397: $wasdefined=0;
398: if ($includeempty) {
399: $currentvalue = 0;
400: } else {
401: $currentvalue = $now;
402: }
403: }
404: # other potentially useful values: wkday,yrday,is_daylight_savings
405: my $tzname;
406: my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
407: if ($currentvalue) {
408: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue);
409: }
410: unless ($wasdefined) {
411: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($now);
412: if (($defhour) || ($defmin) || ($defsec)) {
413: $sec=($defsec?$defsec:0);
414: $min=($defmin?$defmin:0);
415: $hour=($defhour?$defhour:0);
416: } elsif (!$includeempty) {
417: $sec=0;
418: $min=0;
419: $hour=0;
420: }
421: }
422: my $result = "\n<!-- $dname date setting form -->\n";
423: $result .= <<ENDJS;
424: <script type="text/javascript">
425: function $dname\_checkday() {
426: var day = document.$formname.$dname\_day.value;
427: var month = document.$formname.$dname\_month.value;
428: var year = document.$formname.$dname\_year.value;
429: var valid = true;
430: if (day < 1) {
431: document.$formname.$dname\_day.value = 1;
432: }
433: if (day > 31) {
434: document.$formname.$dname\_day.value = 31;
435: }
436: if ((month == 1) || (month == 3) || (month == 5) ||
437: (month == 7) || (month == 8) || (month == 10) ||
438: (month == 12)) {
439: if (day > 31) {
440: document.$formname.$dname\_day.value = 31;
441: day = 31;
442: }
443: } else if (month == 2 ) {
444: if ((year % 4 == 0) && (year % 100 != 0)) {
445: if (day > 29) {
446: document.$formname.$dname\_day.value = 29;
447: }
448: } else if (day > 29) {
449: document.$formname.$dname\_day.value = 28;
450: }
451: } else if (day > 30) {
452: document.$formname.$dname\_day.value = 30;
453: }
454: }
455:
456: function $dname\_disable() {
457: document.$formname.$dname\_month.disabled=true;
458: document.$formname.$dname\_day.disabled=true;
459: document.$formname.$dname\_year.disabled=true;
460: document.$formname.$dname\_hour.disabled=true;
461: document.$formname.$dname\_minute.disabled=true;
462: document.$formname.$dname\_second.disabled=true;
463: }
464:
465: function $dname\_enable() {
466: document.$formname.$dname\_month.disabled=false;
467: document.$formname.$dname\_day.disabled=false;
468: document.$formname.$dname\_year.disabled=false;
469: document.$formname.$dname\_hour.disabled=false;
470: document.$formname.$dname\_minute.disabled=false;
471: document.$formname.$dname\_second.disabled=false;
472: }
473:
474: function $dname\_opencalendar() {
475: if (! document.$formname.$dname\_month.disabled) {
476: var calwin=window.open(
477: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
478: document.$formname.$dname\_month.value+"&year="+
479: document.$formname.$dname\_year.value,
480: "LONCAPAcal",
481: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
482: }
483:
484: }
485: </script>
486: ENDJS
487: $result .= ' <span class="LC_nobreak">';
488: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
489: # Month
490: my @Months = qw/January February March April May June
491: July August September October November December/;
492: # Pad @Months with a bogus value to make indexing easier
493: unshift(@Months,'If you can read this an error occurred');
494: if ($includeempty) { $monthselector.="<option value=''></option>"; }
495: for(my $m = 1;$m <=$#Months;$m++) {
496: $monthselector .= qq{ <option value="$m" };
497: $monthselector .= "selected " if ($m-1 eq $month);
498: $monthselector .= '> '.&mt($Months[$m]).' </option>';
499: }
500: $monthselector.= ' </select>';
501: # Day
502: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
503: # Year
504: my $yearselector = qq{<input type="year" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
505: #
506: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
507: if ($includeempty) {
508: $hourselector.=qq{<option value=''></option>};
509: }
510: for (my $h = 0;$h<24;$h++) {
511: $hourselector .= qq{<option value="$h" };
512: $hourselector .= "selected " if (defined($hour) && $hour == $h);
513: $hourselector .= ">";
514: my $timest='';
515: if ($h == 0) {
516: $timest .= "12 am";
517: } elsif($h == 12) {
518: $timest .= "12 noon";
519: } elsif($h < 12) {
520: $timest .= "$h am";
521: } else {
522: $timest .= $h-12 ." pm";
523: }
524: $timest=&mt($timest);
525: $hourselector .= $timest." </option>\n";
526: }
527: $hourselector .= " </select>\n";
528: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
529: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
530: my $cal_link;
531: if (!$nolink) {
532: $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
533: }
534: #
535: my $tzone = ' '.$tzname.' ';
536: if ($no_hh_mm_ss) {
537: $result .= &mt('[_1] [_2] [_3] ',
538: $monthselector,$dayselector,$yearselector).
539: $tzone;
540: if (!$nolink) {
541: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
542: }
543: } else {
544: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
545: $monthselector,$dayselector,$yearselector,
546: $hourselector,$minuteselector,$secondselector).
547: $tzone;
548: if (!$nolink) {
549: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
550: }
551: }
552: $result .= "</span>\n<!-- end $dname date setting form -->\n";
553: return $result;
554: }
555:
556: sub get_timedates {
557: my ($epoch) = @_;
558: my $dt = DateTime->from_epoch(epoch => $epoch)
559: ->set_time_zone(&Apache::lonlocal::gettimezone());
560: my $tzname = $dt->time_zone_short_name();
561: my $sec = $dt->second;
562: my $min = $dt->minute;
563: my $hour = $dt->hour;
564: my $mday = $dt->day;
565: my $month = $dt->month;
566: if ($month) {
567: $month --;
568: }
569: my $year = $dt->year;
570: return ($tzname,$sec,$min,$hour,$mday,$month,$year);
571: }
572:
573: sub build_url {
574: my ($base, $fields)=@_;
575: my $url;
576: $url = $base.'?';
577: foreach my $key (keys(%$fields)) {
578: $url.=&escape($key).'='.&escape($$fields{$key}).'&';
579: }
580: $url =~ s/&$//;
581: return $url;
582: }
583:
584:
585: ##############################################
586: ##############################################
587:
588: =pod
589:
590: =item &get_date_from_form
591:
592: get_date_from_form retrieves the date specified in an &date_setter form.
593:
594: Inputs:
595:
596: =over 4
597:
598: =item $dname
599:
600: The name passed to &datesetter, which prefixes the form elements.
601:
602: =item $defaulttime
603:
604: The unix time to use as the default in case of poor inputs.
605:
606: =back
607:
608: Returns: Unix time represented in the form.
609:
610: =cut
611:
612: ##############################################
613: ##############################################
614: sub get_date_from_form {
615: my ($dname) = @_;
616: my ($sec,$min,$hour,$day,$month,$year);
617: #
618: if (defined($env{'form.'.$dname.'_second'})) {
619: my $tmpsec = $env{'form.'.$dname.'_second'};
620: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
621: $sec = $tmpsec;
622: }
623: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
624: } else {
625: $sec = 0;
626: }
627: if (defined($env{'form.'.$dname.'_minute'})) {
628: my $tmpmin = $env{'form.'.$dname.'_minute'};
629: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
630: $min = $tmpmin;
631: }
632: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
633: } else {
634: $min = 0;
635: }
636: if (defined($env{'form.'.$dname.'_hour'})) {
637: my $tmphour = $env{'form.'.$dname.'_hour'};
638: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
639: $hour = $tmphour;
640: }
641: } else {
642: $hour = 0;
643: }
644: if (defined($env{'form.'.$dname.'_day'})) {
645: my $tmpday = $env{'form.'.$dname.'_day'};
646: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
647: $day = $tmpday;
648: }
649: }
650: if (defined($env{'form.'.$dname.'_month'})) {
651: my $tmpmonth = $env{'form.'.$dname.'_month'};
652: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
653: $month = $tmpmonth;
654: }
655: }
656: if (defined($env{'form.'.$dname.'_year'})) {
657: my $tmpyear = $env{'form.'.$dname.'_year'};
658: if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
659: $year = $tmpyear;
660: }
661: }
662: if (($year<1970) || ($year>2037)) { return undef; }
663: if (defined($sec) && defined($min) && defined($hour) &&
664: defined($day) && defined($month) && defined($year)) {
665: my $timezone = &Apache::lonlocal::gettimezone();
666: my $dt = DateTime->new( year => $year,
667: month => $month,
668: day => $day,
669: hour => $hour,
670: minute => $min,
671: second => $sec,
672: time_zone => $timezone,
673: );
674: my $epoch_time = $dt->epoch;
675: if ($epoch_time ne '') {
676: return $epoch_time;
677: } else {
678: return undef;
679: }
680: } else {
681: return undef;
682: }
683: }
684:
685: ##############################################
686: ##############################################
687:
688: =pod
689:
690: =item &pjump_javascript_definition()
691:
692: Returns javascript defining the 'pjump' function, which opens up a
693: parameter setting wizard.
694:
695: =cut
696:
697: ##############################################
698: ##############################################
699: sub pjump_javascript_definition {
700: my $Str = <<END;
701: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
702: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
703: +"&value="+escape(value)+"&marker="+escape(marker)
704: +"&return="+escape(ret)
705: +"&call="+escape(call)+"&name="+escape(dis)
706: +"&defhour="+escape(hour)+"&defmin="+escape(min)
707: +"&defsec="+escape(sec),"LONCAPAparms",
708: "height=350,width=350,scrollbars=no,menubar=no");
709: }
710: END
711: return $Str;
712: }
713:
714: ##############################################
715: ##############################################
716:
717: =pod
718:
719: =item &javascript_nothing()
720:
721: Return an appropriate null for the users browser. This is used
722: as the first arguement for window.open calls when you want a blank
723: window that you can then write to.
724:
725: =cut
726:
727: ##############################################
728: ##############################################
729: sub javascript_nothing {
730: # mozilla and other browsers work with "''", but IE on mac does not.
731: my $nothing = "''";
732: my $user_browser;
733: my $user_os;
734: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
735: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
736: if (! defined($user_browser) || ! defined($user_os)) {
737: (undef,$user_browser,undef,undef,undef,$user_os) =
738: &Apache::loncommon::decode_user_agent();
739: }
740: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
741: $nothing = "'javascript:void(0);'";
742: }
743: return $nothing;
744: }
745:
746: ##############################################
747: ##############################################
748: sub javascript_docopen {
749: my ($mimetype) = @_;
750: $mimetype ||= 'text/html';
751: # safari does not understand document.open() and loads "text/html"
752: my $nothing = "''";
753: my $user_browser;
754: my $user_os;
755: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
756: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
757: if (! defined($user_browser) || ! defined($user_os)) {
758: (undef,$user_browser,undef,undef,undef,$user_os) =
759: &Apache::loncommon::decode_user_agent();
760: }
761: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
762: $nothing = "document.clear()";
763: } else {
764: $nothing = "document.open('$mimetype','replace')";
765: }
766: return $nothing;
767: }
768:
769:
770: ##############################################
771: ##############################################
772:
773: =pod
774:
775: =item &StatusOptions()
776:
777: Returns html for a selection box which allows the user to choose the
778: enrollment status of students. The selection box name is 'Status'.
779:
780: Inputs:
781:
782: $status: the currently selected status. If undefined the value of
783: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
784: is used.
785:
786: $formname: The name of the form. If defined the onchange attribute of
787: the selection box is set to document.$formname.submit().
788:
789: $size: the size (number of lines) of the selection box.
790:
791: $onchange: javascript to use when the value is changed. Enclosed in
792: double quotes, ""s, not single quotes.
793:
794: Returns: a perl string as described.
795:
796: =cut
797:
798: ##############################################
799: ##############################################
800: sub StatusOptions {
801: my ($status, $formName,$size,$onchange,$mult)=@_;
802: $size = 1 if (!defined($size));
803: if (! defined($status)) {
804: $status = 'Active';
805: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
806: }
807:
808: my $Str = '';
809: $Str .= '<select name="Status"';
810: if (defined($mult)){
811: $Str .= ' multiple="multiple" ';
812: }
813: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
814: $Str .= ' onchange="document.'.$formName.'.submit()"';
815: }
816: if (defined($onchange)) {
817: $Str .= ' onchange="'.$onchange.'"';
818: }
819: $Str .= ' size="'.$size.'" ';
820: $Str .= '>'."\n";
821: foreach my $type (['Active', &mt('Currently Has Access')],
822: ['Future', &mt('Will Have Future Access')],
823: ['Expired', &mt('Previously Had Access')],
824: ['Any', &mt('Any Access Status')]) {
825: my ($name,$label) = @$type;
826: $Str .= '<option value="'.$name.'" ';
827: if ($status eq $name) {
828: $Str .= 'selected="selected" ';
829: }
830: $Str .= '>'.$label.'</option>'."\n";
831: }
832:
833: $Str .= '</select>'."\n";
834: }
835:
836: ########################################################
837: ########################################################
838:
839: =pod
840:
841: =item Progess Window Handling Routines
842:
843: These routines handle the creation, update, increment, and closure of
844: progress windows. The progress window reports to the user the number
845: of items completed and an estimate of the time required to complete the rest.
846:
847: =over 4
848:
849:
850: =item &Create_PrgWin
851:
852: Writes javascript to the client to open a progress window and returns a
853: data structure used for bookkeeping.
854:
855: Inputs
856:
857: =over 4
858:
859: =item $r Apache request
860:
861: =item $title The title of the progress window
862:
863: =item $heading A description (usually 1 line) of the process being initiated.
864:
865: =item $number_to_do The total number of items being processed.
866:
867: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
868: specified)
869:
870: =item $width Specify the width in charaters of the input field.
871:
872: =item $formname Only useful in the inline case, if a form already exists, this needs to be used and specfiy the name of the form, otherwise the Progress line will be created in a new form of it's own
873:
874: =item $inputname Only useful in the inline case, if a form and an input of type text exists, use this to specify the name of the input field
875:
876: =back
877:
878: Returns a hash containing the progress state data structure.
879:
880:
881: =item &Update_PrgWin
882:
883: Updates the text in the progress indicator. Does not increment the count.
884: See &Increment_PrgWin.
885:
886: Inputs:
887:
888: =over 4
889:
890: =item $r Apache request
891:
892: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
893:
894: =item $displaystring The string to write to the status indicator
895:
896: =back
897:
898: Returns: none
899:
900:
901: =item Increment_PrgWin
902:
903: Increment the count of items completed for the progress window by 1.
904:
905: Inputs:
906:
907: =over 4
908:
909: =item $r Apache request
910:
911: =item $prog_state Pointer to the data structure returned by Create_PrgWin
912:
913: =item $extraInfo A description of the items being iterated over. Typically
914: 'student'.
915:
916: =back
917:
918: Returns: none
919:
920:
921: =item Close_PrgWin
922:
923: Closes the progress window.
924:
925: Inputs:
926:
927: =over 4
928:
929: =item $r Apache request
930:
931: =item $prog_state Pointer to the data structure returned by Create_PrgWin
932:
933: =back
934:
935: Returns: none
936:
937: =back
938:
939: =cut
940:
941: ########################################################
942: ########################################################
943:
944: my $uniq=0;
945: sub get_uniq_name {
946: $uniq++;
947: return 'uniquename'.$uniq;
948: }
949:
950: # Create progress
951: sub Create_PrgWin {
952: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
953: $inputname)=@_;
954: if (!defined($type)) { $type='popup'; }
955: if (!defined($width)) { $width=55; }
956: my %prog_state;
957: $prog_state{'type'}=$type;
958: if ($type eq 'popup') {
959: $prog_state{'window'}='popwin';
960: my $start_page =
961: &Apache::loncommon::start_page($title,undef,
962: {'only_body' => 1,
963: 'bgcolor' => '#88DDFF',
964: 'js_ready' => 1});
965: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
966:
967: #the whole function called through timeout is due to issues
968: #in mozilla Read BUG #2665 if you want to know the whole story
969: &r_print($r,'<script type="text/javascript">'.
970: "var popwin;
971: function openpopwin () {
972: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
973: "popwin.document.writeln(\'".$start_page.
974: "<h4>".&mt("$heading")."<\/h4>".
975: "<form action= \"\" name=\"popremain\" method=\"post\">".
976: '<input type="text" size="'.$width.'" name="remaining" value="'.
977: &mt('Starting').'" /><\\/form>'.$end_page.
978: "\');".
979: "popwin.document.close();}".
980: "\nwindow.setTimeout(openpopwin,0)</script>");
981: $prog_state{'formname'}='popremain';
982: $prog_state{'inputname'}="remaining";
983: } elsif ($type eq 'inline') {
984: $prog_state{'window'}='window';
985: if (!$formname) {
986: $prog_state{'formname'}=&get_uniq_name();
987: &r_print($r,'<form action="" name="'.$prog_state{'formname'}.'">');
988: } else {
989: $prog_state{'formname'}=$formname;
990: }
991: if (!$inputname) {
992: $prog_state{'inputname'}=&get_uniq_name();
993: &r_print($r,&mt("$heading [_1]",' <input type="text" name="'.$prog_state{'inputname'}.'" size="'.$width.'" />'));
994: } else {
995: $prog_state{'inputname'}=$inputname;
996:
997: }
998: if (!$formname) { &r_print($r,'</form>'); }
999: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
1000: }
1001:
1002: $prog_state{'done'}=0;
1003: $prog_state{'firststart'}=&Time::HiRes::time();
1004: $prog_state{'laststart'}=&Time::HiRes::time();
1005: $prog_state{'max'}=$number_to_do;
1006:
1007: return %prog_state;
1008: }
1009:
1010: # update progress
1011: sub Update_PrgWin {
1012: my ($r,$prog_state,$displayString)=@_;
1013: &r_print($r,'<script type="text/javascript">'.$$prog_state{'window'}.'.document.'.
1014: $$prog_state{'formname'}.'.'.
1015: $$prog_state{'inputname'}.'.value="'.
1016: $displayString.'";</script>');
1017: $$prog_state{'laststart'}=&Time::HiRes::time();
1018: }
1019:
1020: # increment progress state
1021: sub Increment_PrgWin {
1022: my ($r,$prog_state,$extraInfo)=@_;
1023: $$prog_state{'done'}++;
1024: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
1025: $$prog_state{'done'} *
1026: ($$prog_state{'max'}-$$prog_state{'done'});
1027: $time_est = int($time_est);
1028: #
1029: my $min = int($time_est/60);
1030: my $sec = $time_est % 60;
1031: #
1032: my $str;
1033: if ($min == 0 && $sec > 1) {
1034: $str = '[_2] seconds';
1035: } elsif ($min == 1 && $sec > 1) {
1036: $str = '1 minute [_2] seconds';
1037: } elsif ($min == 1 && $sec < 2) {
1038: $str = '1 minute';
1039: } elsif ($min < 10 && $sec > 1) {
1040: $str = '[_1] minutes, [_2] seconds';
1041: } elsif ($min >= 10 || $sec < 2) {
1042: $str = '[_1] minutes';
1043: }
1044: $time_est = &mt($str,$min,$sec);
1045: #
1046: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
1047: if ($lasttime > 9) {
1048: $lasttime = int($lasttime);
1049: } elsif ($lasttime < 0.01) {
1050: $lasttime = 0;
1051: } else {
1052: $lasttime = sprintf("%3.2f",$lasttime);
1053: }
1054: if ($lasttime == 1) {
1055: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
1056: } else {
1057: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
1058: }
1059: #
1060: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
1061: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
1062: if (! defined($user_browser) || ! defined($user_os)) {
1063: (undef,$user_browser,undef,undef,undef,$user_os) =
1064: &Apache::loncommon::decode_user_agent();
1065: }
1066: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
1067: $lasttime = '';
1068: }
1069: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
1070: $$prog_state{'formname'}.'.'.
1071: $$prog_state{'inputname'}.'.value="'.
1072: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
1073: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
1074: $$prog_state{'laststart'}=&Time::HiRes::time();
1075: }
1076:
1077: # close Progress Line
1078: sub Close_PrgWin {
1079: my ($r,$prog_state)=@_;
1080: if ($$prog_state{'type'} eq 'popup') {
1081: &r_print($r,'<script>popwin.close()</script>'."\n");
1082: } elsif ($$prog_state{'type'} eq 'inline') {
1083: &Update_PrgWin($r,$prog_state,&mt('Done'));
1084: }
1085: undef(%$prog_state);
1086: }
1087:
1088: sub r_print {
1089: my ($r,$to_print)=@_;
1090: if ($r) {
1091: $r->print($to_print);
1092: $r->rflush();
1093: } else {
1094: print($to_print);
1095: }
1096: }
1097:
1098: # ------------------------------------------------------- Puts directory header
1099:
1100: sub crumbs {
1101: my ($uri,$target,$prefix,$form,$size,$noformat,$skiplast)=@_;
1102: if (! defined($size)) {
1103: $size = '+2';
1104: }
1105: if ($target) {
1106: $target = ' target="'.
1107: &Apache::loncommon::escape_single($target).'"';
1108: }
1109: my $output='';
1110: unless ($noformat) { $output.='<br /><tt><b>'; }
1111: $output.='<font size="'.$size.'">'.$prefix.'/';
1112: if ($env{'user.adv'}) {
1113: my $path=$prefix.'/';
1114: foreach my $dir (split('/',$uri)) {
1115: if (! $dir) { next; }
1116: $path .= $dir;
1117: if ($path eq $uri) {
1118: if ($skiplast) {
1119: $output.=$dir;
1120: last;
1121: }
1122: } else {
1123: $path.='/';
1124: }
1125: my $href_path = &HTML::Entities::encode($path,'<>&"');
1126: &Apache::loncommon::inhibit_menu_check(\$href_path);
1127: if ($form) {
1128: my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
1129: $output.=qq{<a href="$href" $target>$dir</a>/};
1130: } else {
1131: $output.=qq{<a href="$href_path" $target>$dir</a>/};
1132: }
1133: }
1134: } else {
1135: foreach my $dir (split('/',$uri)) {
1136: if (! $dir) { next; }
1137: $output.=$dir.'/';
1138: }
1139: }
1140: if ($uri !~ m|/$|) { $output=~s|/$||; }
1141: return $output.'</font>'.($noformat?'':'</b></tt><br />');
1142: }
1143:
1144: # --------------------- A function that generates a window for the spellchecker
1145:
1146: sub spellheader {
1147: my $start_page=
1148: &Apache::loncommon::start_page('Speller Suggestions',undef,
1149: {'only_body' => 1,
1150: 'js_ready' => 1,
1151: 'bgcolor' => '#DDDDDD',
1152: 'add_entries' => {
1153: 'onload' =>
1154: 'document.forms.spellcheckform.submit()',
1155: }
1156: });
1157: my $end_page=
1158: &Apache::loncommon::end_page({'js_ready' => 1});
1159:
1160: my $nothing=&javascript_nothing();
1161: return (<<ENDCHECK);
1162: <script type="text/javascript">
1163: //<!-- BEGIN LON-CAPA Internal
1164: var checkwin;
1165:
1166: function spellcheckerwindow(string) {
1167: var esc_string = string.replace(/\"/g,'"');
1168: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1169: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1170: checkwin.document.close();
1171: }
1172: // END LON-CAPA Internal -->
1173: </script>
1174: ENDCHECK
1175: }
1176:
1177: # ---------------------------------- Generate link to spell checker for a field
1178:
1179: sub spelllink {
1180: my ($form,$field)=@_;
1181: my $linktext=&mt('Check Spelling');
1182: return (<<ENDLINK);
1183: <a href="javascript:if (typeof(document.$form.onsubmit)!='undefined') { if (document.$form.onsubmit!=null) { document.$form.onsubmit();}};spellcheckerwindow(this.document.forms.$form.$field.value);">$linktext</a>
1184: ENDLINK
1185: }
1186:
1187: # ------------------------------------------------- Output headers for HTMLArea
1188:
1189: {
1190: my @htmlareafields;
1191: sub init_htmlareafields {
1192: undef(@htmlareafields);
1193: }
1194:
1195: sub add_htmlareafields {
1196: my (@newfields) = @_;
1197: push(@htmlareafields,@newfields);
1198: }
1199:
1200: sub get_htmlareafields {
1201: return @htmlareafields;
1202: }
1203: }
1204:
1205: sub htmlareaheaders {
1206: return if (&htmlareablocked());
1207: return if (!&htmlareabrowser());
1208: return (<<ENDHEADERS);
1209: <script type="text/javascript" src="/fckeditor/fckeditor.js"></script>
1210: ENDHEADERS
1211: }
1212:
1213: # ----------------------------------------------------------------- Preferences
1214:
1215: sub disablelink {
1216: my @fields=@_;
1217: if (defined($#fields)) {
1218: unless ($#fields>=0) { return ''; }
1219: }
1220: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1221: }
1222:
1223: sub enablelink {
1224: my @fields=@_;
1225: if (defined($#fields)) {
1226: unless ($#fields>=0) { return ''; }
1227: }
1228: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1229: }
1230:
1231: # ------------------------------------------------- lang to use in html editor
1232: sub htmlarea_lang {
1233: my $lang='en';
1234: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1235: $lang=&mt('htmlarea_lang');
1236: }
1237: return $lang;
1238: }
1239:
1240: # ----------------------------------------- Script to activate only some fields
1241:
1242: sub htmlareaselectactive {
1243: my @fields=@_;
1244: unless (&htmlareabrowser()) { return ''; }
1245: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1246: my $output='<script type="text/javascript" defer="1">';
1247: my $lang = &htmlarea_lang();
1248: foreach my $field (@fields) {
1249: $output.="
1250: {
1251: var oFCKeditor = new FCKeditor('$field');
1252: oFCKeditor.Config['CustomConfigurationsPath'] =
1253: '/fckeditor/loncapaconfig.js';
1254: oFCKeditor.ReplaceTextarea();
1255: oFCKeditor.Config['AutoDetectLanguage'] = false;
1256: oFCKeditor.Config['DefaultLanguage'] = '$lang';
1257: }";
1258: }
1259: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1260: &disablelink(@fields);
1261: return $output;
1262: }
1263:
1264: # --------------------------------------------------------------------- Blocked
1265:
1266: sub htmlareablocked {
1267: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1268: return 0;
1269: }
1270:
1271: # ---------------------------------------- Browser capable of running HTMLArea?
1272:
1273: sub htmlareabrowser {
1274: return 1;
1275: }
1276:
1277: ############################################################
1278: ############################################################
1279:
1280: =pod
1281:
1282: =item breadcrumbs
1283:
1284: Compiles the previously registered breadcrumbs into an series of links.
1285: FAQ and BUG links will be placed on the left side of the table if they
1286: are defined for the last registered breadcrumb.
1287: Additionally supports a 'component', which will be displayed on the
1288: right side of the table (without a link).
1289: A link to help for the component will be included if one is specified.
1290:
1291: All inputs can be undef without problems.
1292:
1293: Inputs: $component (the large text on the right side of the table),
1294: $component_help
1295: $menulink (boolean, controls whether to include a link to /adm/menu)
1296: $helplink (if 'nohelp' don't include the orange help link)
1297: $css_class (optional name for the class to apply to the table for CSS)
1298: $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
1299: when including the text on the right.
1300: Returns a string containing breadcrumbs for the current page.
1301:
1302: =item clear_breadcrumbs
1303:
1304: Clears the previously stored breadcrumbs.
1305:
1306: =item add_breadcrumb
1307:
1308: Pushes a breadcrumb on the stack of crumbs.
1309:
1310: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1311: are required. If present the keys 'faq' and 'bug' will be used to provide
1312: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title'
1313: and 'text' values won't be sent through &mt()
1314:
1315: returns: nothing
1316:
1317: =cut
1318:
1319: ############################################################
1320: ############################################################
1321: {
1322: my @Crumbs;
1323:
1324: sub breadcrumbs {
1325: my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt, $no_realBreadcrumb) = @_;
1326: #
1327: $css_class ||= 'LC_breadcrumbs';
1328: my $Str1 = '<ol id="LC_MenuBreadcrumbs">';
1329:
1330: if($no_realBreadcrumb){
1331: $Str1 = '<ul class="LC_CourseBreadcrumbs">';
1332: }
1333:
1334: my $Str = '';
1335: #
1336: # Make the faq and bug data cascade
1337: my $faq = '';
1338: my $bug = '';
1339: my $help='';
1340: # Crumb Symbol
1341: my $crumbsymbol = '» ';
1342: # The last breadcrumb does not have a link, so handle it separately.
1343: my $last = pop(@Crumbs);
1344: #
1345: # The first one should be the course or a menu link
1346: if (!defined($menulink)) { $menulink=1; }
1347: if ($menulink) {
1348: my $description = 'Menu';
1349: my $no_mt_descr = 0;
1350: if (exists($env{'request.course.id'}) &&
1351: $env{'request.course.id'} ne '') {
1352: $description =
1353: $env{'course.'.$env{'request.course.id'}.'.description'};
1354: $no_mt_descr = 1;
1355: }
1356: unshift(@Crumbs,{
1357: href =>'/adm/menu',
1358: title =>'Go to main menu',
1359: target =>'_top',
1360: text =>$description,
1361: no_mt =>$no_mt_descr,
1362: });
1363: }
1364: my $links .= '<li>'.
1365: join('</li><li>'.$crumbsymbol,
1366: map {
1367: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1368: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1369: $help = $_->{'help'} if (exists($_->{'help'}));
1370: my $result = '<a href="'.$_->{'href'}.'" ';
1371: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1372: $result .= 'target="'.$_->{'target'}.'" ';
1373: }
1374: # set the possible translation for title
1375: if ($_->{'no_mt'}) {
1376: $result .='title="'.$_->{'title'}.'">'.
1377: $_->{'text'}.'</a>';
1378: } else {
1379: $result .='title="'.&mt($_->{'title'}).'">'.
1380: &mt($_->{'text'}).'</a>';
1381: }
1382: $result;
1383: } @Crumbs
1384: ).'</li>';
1385: #Workaround for edit course.
1386: if(@Crumbs == 0 ){
1387: $links .= '<li>' if ($links ne '');
1388: } else {
1389: $links .= '<li>'.$crumbsymbol if ($links ne '');
1390: }
1391: #should the last Element be translated?
1392: if ($last->{'no_mt'}) {
1393: $links .= '<b>'.$last->{'text'}.'</b>';
1394: } else {
1395: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1396: }
1397: $links .= '</li>';
1398: my $icons = '';
1399: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1400: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1401: $help = $last->{'help'} if (exists($last->{'help'}));
1402: $component_help=($component_help?$component_help:$help);
1403: # if ($faq ne '') {
1404: # $icons .= &Apache::loncommon::help_open_faq($faq);
1405: # }
1406: # if ($bug ne '') {
1407: # $icons .= &Apache::loncommon::help_open_bug($bug);
1408: # }
1409: if ($faq ne '' || $component_help ne '' || $bug ne '') {
1410: $icons .= &Apache::loncommon::help_open_menu($component,
1411: $component_help,
1412: $faq,$bug);
1413: }
1414: #
1415:
1416:
1417: if($no_realBreadcrumb){
1418: $Str1 .= $links.'</ul>';
1419: } else {
1420: $Str1 .= $links.'</ol>';
1421: }
1422: #
1423: if (defined($component)) {
1424: $Str .= "\n".'<table class="'.$css_class.'">'
1425: .'<tr><td class="'.$css_class.'_component">';
1426: if ($no_mt) {
1427: $Str .= $component;
1428: } else {
1429: $Str .= &mt($component);
1430: }
1431: if ($icons ne '') {
1432: $Str .= ' '.$icons;
1433: }
1434: $Str .= '</td></tr></table>'."\n";
1435: }
1436: #
1437: # Return the @Crumbs stack to what we started with
1438: push(@Crumbs,$last);
1439: shift(@Crumbs);
1440: # Return a table and after that the breadcrumb's line
1441: return "$Str\n$Str1";
1442: }
1443:
1444: sub clear_breadcrumbs {
1445: undef(@Crumbs);
1446: }
1447:
1448: sub add_breadcrumb {
1449: push (@Crumbs,@_);
1450: }
1451:
1452: } # End of scope for @Crumbs
1453:
1454: ############################################################
1455: ############################################################
1456:
1457: # Nested table routines.
1458: #
1459: # Routines to display form items in a multi-row table with 2 columns.
1460: # Uses nested tables to divide form elements into segments.
1461: # For examples of use see loncom/interface/lonnotify.pm
1462: #
1463: # Can be used in following order: ...
1464: # &start_pick_box()
1465: # row1
1466: # row2
1467: # row3 ... etc.
1468: # &submit_row()
1469: # &end_pick_box()
1470: #
1471: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1472: # &status_select_row and &email_default_row
1473: #
1474: # Can also be used in following order:
1475: #
1476: # &start_pick_box()
1477: # &row_title()
1478: # &row_closure()
1479: # &row_title()
1480: # &row_closure() ... etc.
1481: # &submit_row()
1482: # &end_pick_box()
1483: #
1484: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1485: # as this routine adds a button for form submission.
1486: # &submit_row() does not require a &row_closure after it.
1487: #
1488: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1489: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1490: #
1491: # &row_title() adds a title in the left column for each segment.
1492: # &row_closure() closes a row with a 1-pixel wide black line.
1493: #
1494: # &role_select_row() provides a select box from which to choose 1 or more roles
1495: # &course_select_row provides ways of picking groups of courses
1496: # radio buttons: all, by category or by picking from a course picker pop-up
1497: # note: by category option is only displayed if a domain has implemented
1498: # selection by year, semester, department, number etc.
1499: #
1500: # &status_select_row() provides a select box from which to choose 1 or more
1501: # access types (current access, prior access, and future access)
1502: #
1503: # &email_default_row() provides text boxes for default e-mail suffixes for
1504: # different authentication types in a domain.
1505: #
1506: # &row_title() and &row_closure() are called internally by the &*_select_row
1507: # routines, but can also be called directly to start and end rows which have
1508: # needs that are not accommodated by the *_select_row() routines.
1509:
1510: { # Start: row_count block for pick_box
1511: my @row_count;
1512:
1513: sub start_pick_box {
1514: my ($css_class) = @_;
1515: if (defined($css_class)) {
1516: $css_class = 'class="'.$css_class.'"';
1517: } else {
1518: $css_class= 'class="LC_pick_box"';
1519: }
1520: unshift(@row_count,0);
1521: my $output = <<"END";
1522: <table $css_class>
1523: END
1524: return $output;
1525: }
1526:
1527: sub end_pick_box {
1528: shift(@row_count);
1529: my $output = <<"END";
1530: </table>
1531: END
1532: return $output;
1533: }
1534:
1535: sub row_headline {
1536: my $output = <<"END";
1537: <tr><td colspan="2">
1538: END
1539: return $output;
1540: }
1541:
1542: sub row_title {
1543: $row_count[0]++;
1544: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
1545: my ($title,$css_title_class,$css_value_class) = @_;
1546: $css_title_class ||= 'LC_pick_box_title';
1547: $css_title_class = 'class="'.$css_title_class.'"';
1548:
1549: $css_value_class ||= 'LC_pick_box_value';
1550:
1551: if ($title ne '') {
1552: $title .= ':';
1553: }
1554: my $output = <<"ENDONE";
1555: <tr class="LC_pick_box_row">
1556: <td $css_title_class>
1557: $title
1558: </td>
1559: <td class="$css_value_class $css_class">
1560: ENDONE
1561: return $output;
1562: }
1563:
1564: sub row_closure {
1565: my ($no_separator) =@_;
1566: my $output = <<"ENDTWO";
1567: </td>
1568: </tr>
1569: ENDTWO
1570: if (!$no_separator) {
1571: $output .= <<"ENDTWO";
1572: <tr>
1573: <td colspan="2" class="LC_pick_box_separator">
1574: </td>
1575: </tr>
1576: ENDTWO
1577: }
1578: return $output;
1579: }
1580:
1581: } # End: row_count block for pick_box
1582:
1583:
1584: sub role_select_row {
1585: my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
1586: my $output;
1587: if (defined($title)) {
1588: $output = &row_title($title,$css_class);
1589: }
1590: $output .= qq|
1591: <select name="roles" multiple="multiple">\n|;
1592: foreach my $role (@$roles) {
1593: my $plrole;
1594: if ($role eq 'ow') {
1595: $plrole = &mt('Course Owner');
1596: } elsif ($role eq 'cr') {
1597: if ($show_separate_custom) {
1598: if ($cdom ne '' && $cnum ne '') {
1599: my %course_customroles = &course_custom_roles($cdom,$cnum);
1600: foreach my $crrole (sort(keys(%course_customroles))) {
1601: my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
1602: $output .= ' <option value="'.$crrole.'">'.$plcrrole.
1603: '</option>';
1604: }
1605: }
1606: } else {
1607: $plrole = &mt('Custom Role');
1608: }
1609: } else {
1610: $plrole=&Apache::lonnet::plaintext($role);
1611: }
1612: if (($role ne 'cr') || (!$show_separate_custom)) {
1613: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1614: }
1615: }
1616: $output .= qq| </select>\n|;
1617: if (defined($title)) {
1618: $output .= &row_closure();
1619: }
1620: return $output;
1621: }
1622:
1623: sub course_select_row {
1624: my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
1625: $css_class) = @_;
1626: my $output = &row_title($title,$css_class);
1627: $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles);
1628: $output .= &row_closure();
1629: return $output;
1630: }
1631:
1632: sub course_selection {
1633: my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1634: my $output = qq|
1635: <script type="text/javascript">
1636: function coursePick (formname) {
1637: for (var i=0; i<formname.coursepick.length; i++) {
1638: if (formname.coursepick[i].value == 'category') {
1639: courseSet('');
1640: }
1641: if (!formname.coursepick[i].checked) {
1642: if (formname.coursepick[i].value == 'specific') {
1643: formname.coursetotal.value = 0;
1644: formname.courselist = '';
1645: }
1646: }
1647: }
1648: }
1649: function setPick (formname) {
1650: for (var i=0; i<formname.coursepick.length; i++) {
1651: if (formname.coursepick[i].value == 'category') {
1652: formname.coursepick[i].checked = true;
1653: }
1654: formname.coursetotal.value = 0;
1655: formname.courselist = '';
1656: }
1657: }
1658: </script>
1659: |;
1660: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1661: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1662: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses').'<br />';
1663: if ($totcodes > 0) {
1664: my $numtitles = @$codetitles;
1665: if ($numtitles > 0) {
1666: $output .= '<input type="radio" name="coursepick" value="category" onclick="coursePick(this.form);alert('."'".&mt('Choose categories, from left to right')."'".')" />'.&mt('Pick courses by category:').' <br />';
1667: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1668: '<select name="'.$$codetitles[0].
1669: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1670: ' <option value="-1" />Select'."\n";
1671: my @items = ();
1672: my @longitems = ();
1673: if ($$idlist{$$codetitles[0]} =~ /","/) {
1674: @items = split(/","/,$$idlist{$$codetitles[0]});
1675: } else {
1676: $items[0] = $$idlist{$$codetitles[0]};
1677: }
1678: if (defined($$idlist_titles{$$codetitles[0]})) {
1679: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1680: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1681: } else {
1682: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1683: }
1684: for (my $i=0; $i<@longitems; $i++) {
1685: if ($longitems[$i] eq '') {
1686: $longitems[$i] = $items[$i];
1687: }
1688: }
1689: } else {
1690: @longitems = @items;
1691: }
1692: for (my $i=0; $i<@items; $i++) {
1693: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1694: }
1695: $output .= '</select></td>';
1696: for (my $i=1; $i<$numtitles; $i++) {
1697: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1698: '<select name="'.$$codetitles[$i].
1699: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1700: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1701: '</select>'."\n".
1702: '</td>';
1703: }
1704: $output .= '</tr></table><br />';
1705: }
1706: }
1707: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."','dccourse','dcdomain','coursedesc','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br />'."\n";
1708: return $output;
1709: }
1710:
1711: sub status_select_row {
1712: my ($types,$title,$css_class) = @_;
1713: my $output;
1714: if (defined($title)) {
1715: $output = &row_title($title,$css_class,'LC_pick_box_select');
1716: }
1717: $output .= qq|
1718: <select name="types" multiple="multiple">\n|;
1719: foreach my $status_type (sort(keys(%{$types}))) {
1720: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1721: }
1722: $output .= qq| </select>\n|;
1723: if (defined($title)) {
1724: $output .= &row_closure();
1725: }
1726: return $output;
1727: }
1728:
1729: sub email_default_row {
1730: my ($authtypes,$title,$descrip,$css_class) = @_;
1731: my $output = &row_title($title,$css_class);
1732: $output .= $descrip.
1733: &Apache::loncommon::start_data_table().
1734: &Apache::loncommon::start_data_table_header_row().
1735: '<th>'.&mt('Authentication Method').'</th>'.
1736: '<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
1737: &Apache::loncommon::end_data_table_header_row();
1738: my $rownum = 0;
1739: foreach my $auth (sort(keys(%{$authtypes}))) {
1740: my ($userentry,$size);
1741: if ($auth =~ /^krb/) {
1742: $userentry = '';
1743: $size = 25;
1744: } else {
1745: $userentry = 'username@';
1746: $size = 15;
1747: }
1748: $output .= &Apache::loncommon::start_data_table_row().
1749: '<td> '.$$authtypes{$auth}.'</td>'.
1750: '<td align="right">'.$userentry.
1751: '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
1752: &Apache::loncommon::end_data_table_row();
1753: }
1754: $output .= &Apache::loncommon::end_data_table();
1755: $output .= &row_closure();
1756: return $output;
1757: }
1758:
1759:
1760: sub submit_row {
1761: my ($title,$cmd,$submit_text,$css_class) = @_;
1762: $submit_text = &mt($submit_text);
1763: my $output = &row_title($title,$css_class,'LC_pick_box_submit');
1764: $output .= qq|
1765: <br />
1766: <input type="hidden" name="command" value="$cmd" />
1767: <input type="submit" value="$submit_text"/>
1768: <br /><br />
1769: \n|;
1770: return $output;
1771: }
1772:
1773: sub course_custom_roles {
1774: my ($cdom,$cnum) = @_;
1775: my %returnhash=();
1776: my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
1777: foreach my $person (sort(keys(%coursepersonnel))) {
1778: my ($role) = ($person =~ /^([^:]+):/);
1779: my ($end,$start) = split(/:/,$coursepersonnel{$person});
1780: if ($end == -1 && $start == -1) {
1781: next;
1782: }
1783: if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
1784: $returnhash{$role} ++;
1785: }
1786: }
1787: return %returnhash;
1788: }
1789:
1790:
1791: ##############################################
1792: ##############################################
1793:
1794: # topic_bar
1795: #
1796: # Generates a div containing a numbered (static image) followed by a title
1797: # with a background color defined in the corresponding CSS: LC_topic_bar
1798: #
1799: sub topic_bar {
1800: my ($imgnum,$title) = @_;
1801: return '
1802: <div class="LC_topic_bar">
1803: <img alt="'.&mt('Step [_1]',$imgnum).
1804: '"src="/res/adm/pages/bl_step'.$imgnum.'.gif" />
1805: <span>'.$title.'</span>
1806: </div>
1807: ';
1808: }
1809:
1810: ##############################################
1811: ##############################################
1812:
1813: # echo_form_input
1814: #
1815: # Generates html markup to add form elements from the referrer page
1816: # as hidden form elements (values encoded) in the new page.
1817: #
1818: # Intended to support two types of use
1819: # (a) to allow backing up to earlier pages in a multi-page
1820: # form submission process using a breadcrumb trail.
1821: #
1822: # (b) to allow the current page to be reloaded with form elements
1823: # set on previous page to remain unchanged. An example would
1824: # be where the a page containing a dynamically-built table of data is
1825: # is to be redisplayed, with only the sort order of the data changed.
1826: #
1827: # Inputs:
1828: # 1. Reference to array of form elements in the submitted form on
1829: # the referrer page which are to be excluded from the echoed elements.
1830: #
1831: # 2. Reference to array of regular expressions, which if matched in the
1832: # name of the form element n the referrer page will be omitted from echo.
1833: #
1834: # Outputs: A scalar containing the html markup for the echoed form
1835: # elements (all as hidden elements, with values encoded).
1836:
1837:
1838: sub echo_form_input {
1839: my ($excluded,$regexps) = @_;
1840: my $output = '';
1841: foreach my $key (keys(%env)) {
1842: if ($key =~ /^form\.(.+)$/) {
1843: my $name = $1;
1844: my $match = 0;
1845: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1846: if (defined($regexps)) {
1847: if (@{$regexps} > 0) {
1848: foreach my $regexp (@{$regexps}) {
1849: if ($name =~ /\Q$regexp\E/) {
1850: $match = 1;
1851: last;
1852: }
1853: }
1854: }
1855: }
1856: if (!$match) {
1857: if (ref($env{$key})) {
1858: foreach my $value (@{$env{$key}}) {
1859: $value = &HTML::Entities::encode($value,'<>&"');
1860: $output .= '<input type="hidden" name="'.$name.
1861: '" value="'.$value.'" />'."\n";
1862: }
1863: } else {
1864: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1865: $output .= '<input type="hidden" name="'.$name.
1866: '" value="'.$value.'" />'."\n";
1867: }
1868: }
1869: }
1870: }
1871: }
1872: return $output;
1873: }
1874:
1875: ##############################################
1876: ##############################################
1877:
1878: # set_form_elements
1879: #
1880: # Generates javascript to set form elements to values based on
1881: # corresponding values for the same form elements when the page was
1882: # previously submitted.
1883: #
1884: # Last submission values are read from hidden form elements in referring
1885: # page which have the same name, i.e., generated by &echo_form_input().
1886: #
1887: # Intended to be called by onload event.
1888: #
1889: # Inputs:
1890: # (a) Reference to hash of echoed form elements to be set.
1891: #
1892: # In the hash, keys are the form element names, and the values are the
1893: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1894: # hidden).
1895: #
1896: # (b) Optional reference to hash of stored elements to be set.
1897: #
1898: # If the page being displayed is a page which permits modification of
1899: # previously stored data, e.g., the first page in a multi-page submission,
1900: # then if stored is supplied, form elements will be set to the last stored
1901: # values. If user supplied values are also available for the same elements
1902: # these will replace the stored values.
1903: #
1904: # Output:
1905: #
1906: # javascript function - set_form_elements() which sets form elements,
1907: # expects an argument: formname - the name of the form according to
1908: # the DOM, e.g., document.compose
1909:
1910: sub set_form_elements {
1911: my ($elements,$stored) = @_;
1912: my %values;
1913: my $output .= 'function setFormElements(courseForm) {
1914: ';
1915: if (defined($stored)) {
1916: foreach my $name (keys(%{$stored})) {
1917: if (exists($$elements{$name})) {
1918: if (ref($$stored{$name}) eq 'ARRAY') {
1919: $values{$name} = $$stored{$name};
1920: } else {
1921: @{$values{$name}} = ($$stored{$name});
1922: }
1923: }
1924: }
1925: }
1926:
1927: foreach my $key (keys(%env)) {
1928: if ($key =~ /^form\.(.+)$/) {
1929: my $name = $1;
1930: if (exists($$elements{$name})) {
1931: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1932: }
1933: }
1934: }
1935:
1936: foreach my $name (keys(%values)) {
1937: for (my $i=0; $i<@{$values{$name}}; $i++) {
1938: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1939: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1940: $values{$name}[$i] =~ s/"/\\"/g;
1941: }
1942: if ($$elements{$name} eq 'text') {
1943: my $numvalues = @{$values{$name}};
1944: if ($numvalues > 1) {
1945: my $valuestring = join('","',@{$values{$name}});
1946: $output .= qq|
1947: var textvalues = new Array ("$valuestring");
1948: var total = courseForm.elements['$name'].length;
1949: if (total > $numvalues) {
1950: total = $numvalues;
1951: }
1952: for (var i=0; i<total; i++) {
1953: courseForm.elements['$name']\[i].value = textvalues[i];
1954: }
1955: |;
1956: } else {
1957: $output .= qq|
1958: courseForm.elements['$name'].value = "$values{$name}[0]";
1959: |;
1960: }
1961: } else {
1962: $output .= qq|
1963: var elementLength = courseForm.elements['$name'].length;
1964: if (elementLength==undefined) {
1965: |;
1966: foreach my $value (@{$values{$name}}) {
1967: if ($$elements{$name} eq 'selectbox') {
1968: $output .= qq|
1969: if (courseForm.elements['$name'].options[0].value == "$value") {
1970: courseForm.elements['$name'].options[0].selected = true;
1971: }|;
1972: } elsif (($$elements{$name} eq 'radio') ||
1973: ($$elements{$name} eq 'checkbox')) {
1974: $output .= qq|
1975: if (courseForm.elements['$name'].value == "$value") {
1976: courseForm.elements['$name'].checked = true;
1977: }|;
1978: }
1979: }
1980: $output .= qq|
1981: }
1982: else {
1983: for (var i=0; i<courseForm.elements['$name'].length; i++) {
1984: |;
1985: if ($$elements{$name} eq 'selectbox') {
1986: $output .= qq|
1987: courseForm.elements['$name'].options[i].selected = false;|;
1988: } elsif (($$elements{$name} eq 'radio') ||
1989: ($$elements{$name} eq 'checkbox')) {
1990: $output .= qq|
1991: courseForm.elements['$name']\[i].checked = false;|;
1992: }
1993: $output .= qq|
1994: }
1995: for (var j=0; j<courseForm.elements['$name'].length; j++) {
1996: |;
1997: foreach my $value (@{$values{$name}}) {
1998: if ($$elements{$name} eq 'selectbox') {
1999: $output .= qq|
2000: if (courseForm.elements['$name'].options[j].value == "$value") {
2001: courseForm.elements['$name'].options[j].selected = true;
2002: }|;
2003: } elsif (($$elements{$name} eq 'radio') ||
2004: ($$elements{$name} eq 'checkbox')) {
2005: $output .= qq|
2006: if (courseForm.elements['$name']\[j].value == "$value") {
2007: courseForm.elements['$name']\[j].checked = true;
2008: }|;
2009: }
2010: }
2011: $output .= qq|
2012: }
2013: }
2014: |;
2015: }
2016: }
2017: $output .= "
2018: }\n";
2019: return $output;
2020: }
2021:
2022: ##############################################
2023: ##############################################
2024:
2025: # javascript_valid_email
2026: #
2027: # Generates javascript to validate an e-mail address.
2028: # Returns a javascript function which accetps a form field as argumnent, and
2029: # returns false if field.value does not satisfy two regular expression matches
2030: # for a valid e-mail address. Backwards compatible with old browsers without
2031: # support for javascript RegExp (just checks for @ in field.value in this case).
2032:
2033: sub javascript_valid_email {
2034: my $scripttag .= <<'END';
2035: function validmail(field) {
2036: var str = field.value;
2037: if (window.RegExp) {
2038: var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
2039: var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
2040: var reg1 = new RegExp(reg1str);
2041: var reg2 = new RegExp(reg2str);
2042: if (!reg1.test(str) && reg2.test(str)) {
2043: return true;
2044: }
2045: return false;
2046: }
2047: else
2048: {
2049: if(str.indexOf("@") >= 0) {
2050: return true;
2051: }
2052: return false;
2053: }
2054: }
2055: END
2056: return $scripttag;
2057: }
2058:
2059: ##############################################
2060: ##############################################
2061:
2062: # generate_menu
2063: #
2064: # Generates html markup for a menu.
2065: #
2066: # Inputs:
2067: # An array of following structure:
2068: # ({ categorytitle => 'Categorytitle',
2069: # items => [
2070: # {
2071: # linktext => 'Text to be displayed',
2072: # url => 'URL the link is pointing to, i.e. /adm/site?action=dosomething',
2073: # permission => 'Contains permissions as returned from lonnet::allowed(),
2074: # must evaluate to true in order to activate the link',
2075: # icon => 'icon filename',
2076: # alttext => 'alt text for the icon',
2077: # help => 'Name of the corresponding helpfile',
2078: # linktitle => 'Description of the link (used for title tag)'
2079: # },
2080: # ...
2081: # ]
2082: # },
2083: # ...
2084: # )
2085: #
2086: # Outputs: A scalar containing the html markup for the menu.
2087:
2088: # ---- Remove when done ----
2089: # This routine is part of the redesign of LON-CAPA and it's
2090: # subject to change during this project.
2091: # Don't rely on its current functionality as it might be
2092: # changed or removed.
2093: # --------------------------
2094: sub generate_menu {
2095: my @menu = @_;
2096:
2097: # usage: $wrap->(element, content, {attribute => value,...});
2098: # output: content enclosed in html conform tags
2099: my $wrap = sub {
2100: return
2101: qq|<$_[0]|
2102: . join( '', map { qq| $_="${$_[2]}{$_}"| } keys %{ $_[2] } )
2103: . ($_[1] ? qq|>$_[1]</$_[0]>| : qq|/>|). "\n";
2104: };
2105:
2106: # subs for specific html elements
2107: my $h3 = sub { return $wrap->( "h3", @_ ) };
2108: my $div = sub { return $wrap->( "div", @_ ) };
2109: my $ul = sub { return $wrap->( "ul", @_ ) };
2110: my $li = sub { return $wrap->( "li", @_ ) };
2111: my $a = sub { return $wrap->( "a", @_ ) };
2112: my $img = sub { return $wrap->( "img", @_ ) };
2113:
2114: my @categories; # each element represents the entire markup for a category
2115:
2116: foreach my $category (@menu) {
2117: my @links; # contains the links for the current $category
2118: foreach my $link (@{$$category{items}}) {
2119: next unless $$link{permission};
2120:
2121: # create the markup for the current $link and push it into @links.
2122: # each entry consists of an image and a text optionally followed
2123: # by a help link.
2124: push @links, $li->(
2125: $a->(
2126: $img->("", {
2127: class => "LC_noBorder LC_middle",
2128: src => "/res/adm/pages/$$link{icon}",
2129: alt => mt(defined($$link{alttext}) ?
2130: $$link{alttext} : $$link{linktext})
2131: }), {
2132: href => $$link{url},
2133: title => mt($$link{linktitle})
2134: }).
2135: $a->(mt($$link{linktext}), {
2136: href => $$link{url},
2137: title => mt($$link{linktitle}),
2138: class => "LC_menubuttons_link"
2139: }).
2140: (defined($$link{help}) ?
2141: Apache::loncommon::help_open_topic($$link{help}) : ''),
2142: {class => "LC_menubuttons_inline_text"});
2143: }
2144:
2145: # wrap categorytitle in <h3>, concatenate with
2146: # joined and in <ul> tags wrapped @links
2147: # and wrap everything in an enclosing <div> and push it into
2148: # @categories
2149: # such that each element looks like:
2150: # <div><h3>title</h3><ul><li>...</li>...</ul></div>
2151: # the category won't be added if there aren't any links
2152: push @categories,
2153: $div->($h3->(mt($$category{categorytitle}), {class=>"LC_hcell"}).
2154: $ul->(join('' ,@links), {class =>"LC_ListStyleNormal" }),
2155: {class=>"LC_ContentBoxSpecial LC_400Box"}) if scalar(@links);
2156: }
2157:
2158: # wrap the joined @categories in another <div> (column layout)
2159: return $div->(join('', @categories), {class => "LC_columnSection"});
2160: }
2161:
2162: 1;
2163:
2164: __END__
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