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lonhtmlcommon.pm
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Mon Jan 12 01:37:57 2009 UTC (15 years, 7 months ago) by
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- If $component contained course title
&lonhtmlcommon::breadcrumbs() would generate ISE is title included [].
- Do &mt() call before passing $component to lonhtmlcommon::breadcrumbs()
- Additional argument (no_mt) in lonhtmlcommon::breadcrumbs().
- Append course title to "Current automated enrollment settings for " heading.
1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.197 2009/01/12 01:37:57 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: =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:
69: =pod
70:
71: =item dragmath_button
72:
73: Creates a button that launches a dragmath popup-window, in which an
74: expression can be edited and pasted as LaTeX into a specified textarea.
75:
76: textarea - Name of the textarea to edit.
77: helpicon - If true, show a help icon to the right of the button.
78:
79: =cut
80:
81: sub dragmath_button {
82: my ($textarea,$helpicon) = @_;
83: my $help_text;
84: if ($helpicon) {
85: $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor');
86: }
87: my $buttontext=&mt('Edit Math');
88: return <<ENDDRAGMATH;
89: <input type="button" value="$buttontext", onclick="javascript:mathedit('$textarea',document)" />$help_text
90: ENDDRAGMATH
91: }
92:
93: ##############################################
94:
95: =pod
96:
97: =item dragmath_js
98:
99: Javascript used to open pop-up window containing dragmath applet which
100: can be used to paste LaTeX into a textarea.
101:
102: =cut
103:
104: sub dragmath_js {
105: my ($popup) = @_;
106: return <<ENDDRAGMATHJS;
107: <script type="text/javascript">
108: function mathedit(textarea, doc) {
109: targetEntry = textarea;
110: targetDoc = doc;
111: newwin = window.open("/adm/dragmath/applet/$popup.html","","width=565,height=500,resizable");
112: }
113: </script>
114:
115: ENDDRAGMATHJS
116: }
117:
118:
119: ##############################################
120: ##############################################
121:
122: =pod
123:
124: =item authorbombs
125:
126: =cut
127:
128: ##############################################
129: ##############################################
130:
131: sub authorbombs {
132: my $url=shift;
133: $url=&Apache::lonnet::declutter($url);
134: my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
135: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
136: foreach (keys %bombs) {
137: if ($_=~/^$udom\/$uname\//) {
138: return '<a href="/adm/bombs/'.$url.
139: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" border="0" /></a>'.
140: &Apache::loncommon::help_open_topic('About_Bombs');
141: }
142: }
143: return '';
144: }
145:
146: ##############################################
147: ##############################################
148:
149: sub recent_filename {
150: my $area=shift;
151: return 'nohist_recent_'.&escape($area);
152: }
153:
154: sub store_recent {
155: my ($area,$name,$value,$freeze)=@_;
156: my $file=&recent_filename($area);
157: my %recent=&Apache::lonnet::dump($file);
158: if (scalar(keys(%recent))>20) {
159: # remove oldest value
160: my $oldest=time();
161: my $delkey='';
162: foreach my $item (keys(%recent)) {
163: my $thistime=(split(/\&/,$recent{$item}))[0];
164: if (($thistime ne "always_include") && ($thistime<$oldest)) {
165: $oldest=$thistime;
166: $delkey=$item;
167: }
168: }
169: &Apache::lonnet::del($file,[$delkey]);
170: }
171: # store new value
172: my $timestamp;
173: if ($freeze) {
174: $timestamp = "always_include";
175: } else {
176: $timestamp = time();
177: }
178: &Apache::lonnet::put($file,{ $name =>
179: $timestamp.'&'.&escape($value) });
180: }
181:
182: sub remove_recent {
183: my ($area,$names)=@_;
184: my $file=&recent_filename($area);
185: return &Apache::lonnet::del($file,$names);
186: }
187:
188: sub select_recent {
189: my ($area,$fieldname,$event)=@_;
190: my %recent=&Apache::lonnet::dump(&recent_filename($area));
191: my $return="\n<select name='$fieldname'".
192: ($event?" onchange='$event'":'').
193: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
194: foreach my $value (sort(keys(%recent))) {
195: unless ($value =~/^error\:/) {
196: my $escaped = &Apache::loncommon::escape_url($value);
197: &Apache::loncommon::inhibit_menu_check(\$escaped);
198: $return.="\n<option value='$escaped'>".
199: &unescape((split(/\&/,$recent{$value}))[1]).
200: '</option>';
201: }
202: }
203: $return.="\n</select>\n";
204: return $return;
205: }
206:
207: sub get_recent {
208: my ($area, $n) = @_;
209: my %recent=&Apache::lonnet::dump(&recent_filename($area));
210:
211: # Create hash with key as time and recent as value
212: # Begin filling return_hash with any 'always_include' option
213: my %time_hash = ();
214: my %return_hash = ();
215: foreach my $item (keys %recent) {
216: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
217: if ($thistime eq 'always_include') {
218: $return_hash{$item} = &unescape($thisvalue);
219: $n--;
220: } else {
221: $time_hash{$thistime} = $item;
222: }
223: }
224:
225: # Sort by decreasing time and return key value pairs
226: my $idx = 1;
227: foreach my $item (reverse(sort(keys(%time_hash)))) {
228: $return_hash{$time_hash{$item}} =
229: &unescape((split(/\&/,$recent{$time_hash{$item}}))[1]);
230: if ($n && ($idx++ >= $n)) {last;}
231: }
232:
233: return %return_hash;
234: }
235:
236: sub get_recent_frozen {
237: my ($area) = @_;
238: my %recent=&Apache::lonnet::dump(&recent_filename($area));
239:
240: # Create hash with all 'frozen' items
241: my %return_hash = ();
242: foreach my $item (keys(%recent)) {
243: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
244: if ($thistime eq 'always_include') {
245: $return_hash{$item} = &unescape($thisvalue);
246: }
247: }
248: return %return_hash;
249: }
250:
251:
252:
253: =pod
254:
255: =item textbox
256:
257: =cut
258:
259: ##############################################
260: ##############################################
261: sub textbox {
262: my ($name,$value,$size,$special) = @_;
263: $size = 40 if (! defined($size));
264: $value = &HTML::Entities::encode($value,'<>&"');
265: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
266: 'value="'.$value.'" '.$special.' />';
267: return $Str;
268: }
269:
270: ##############################################
271: ##############################################
272:
273: =pod
274:
275: =item checkbox
276:
277: =cut
278:
279: ##############################################
280: ##############################################
281: sub checkbox {
282: my ($name,$checked,$value) = @_;
283: my $Str = '<input type="checkbox" name="'.$name.'" ';
284: if (defined($value)) {
285: $Str .= 'value="'.$value.'"';
286: }
287: if ($checked) {
288: $Str .= ' checked="1"';
289: }
290: $Str .= ' />';
291: return $Str;
292: }
293:
294:
295: =pod
296:
297: =item radiobutton
298:
299: =cut
300:
301: ##############################################
302: ##############################################
303: sub radio {
304: my ($name,$checked,$value) = @_;
305: my $Str = '<input type="radio" name="'.$name.'" ';
306: if (defined($value)) {
307: $Str .= 'value="'.$value.'"';
308: }
309: if ($checked eq $value) {
310: $Str .= ' checked="1"';
311: }
312: $Str .= ' />';
313: return $Str;
314: }
315:
316: ##############################################
317: ##############################################
318:
319: =pod
320:
321: =item &date_setter
322:
323: &date_setter returns html and javascript for a compact date-setting form.
324: To retrieve values from it, use &get_date_from_form().
325:
326: Inputs
327:
328: =over 4
329:
330: =item $dname
331:
332: The name to prepend to the form elements.
333: The form elements defined will be dname_year, dname_month, dname_day,
334: dname_hour, dname_min, and dname_sec.
335:
336: =item $currentvalue
337:
338: The current setting for this time parameter. A unix format time
339: (time in seconds since the beginning of Jan 1st, 1970, GMT.
340: An undefined value is taken to indicate the value is the current time.
341: Also, to be explicit, a value of 'now' also indicates the current time.
342:
343: =item $special
344:
345: Additional html/javascript to be associated with each element in
346: the date_setter. See lonparmset for example usage.
347:
348: =item $includeempty
349:
350: =item $state
351:
352: Specifies the initial state of the form elements. Either 'disabled' or empty.
353: Defaults to empty, which indiciates the form elements are not disabled.
354:
355: =back
356:
357: Bugs
358:
359: The method used to restrict user input will fail in the year 2400.
360:
361: =cut
362:
363: ##############################################
364: ##############################################
365: sub date_setter {
366: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
367: $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink) = @_;
368: my $now = time;
369: my $wasdefined=1;
370: if (! defined($state) || $state ne 'disabled') {
371: $state = '';
372: }
373: if (! defined($no_hh_mm_ss)) {
374: $no_hh_mm_ss = 0;
375: }
376: if ($currentvalue eq 'now') {
377: $currentvalue = $now;
378: }
379: if ((!defined($currentvalue)) || ($currentvalue eq '')) {
380: $wasdefined=0;
381: if ($includeempty) {
382: $currentvalue = 0;
383: } else {
384: $currentvalue = $now;
385: }
386: }
387: # other potentially useful values: wkday,yrday,is_daylight_savings
388: my $tzname;
389: my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
390: if ($currentvalue) {
391: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue);
392: }
393: unless ($wasdefined) {
394: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($now);
395: if (($defhour) || ($defmin) || ($defsec)) {
396: $sec=($defsec?$defsec:0);
397: $min=($defmin?$defmin:0);
398: $hour=($defhour?$defhour:0);
399: } elsif (!$includeempty) {
400: $sec=0;
401: $min=0;
402: $hour=0;
403: }
404: }
405: my $result = "\n<!-- $dname date setting form -->\n";
406: $result .= <<ENDJS;
407: <script type="text/javascript">
408: function $dname\_checkday() {
409: var day = document.$formname.$dname\_day.value;
410: var month = document.$formname.$dname\_month.value;
411: var year = document.$formname.$dname\_year.value;
412: var valid = true;
413: if (day < 1) {
414: document.$formname.$dname\_day.value = 1;
415: }
416: if (day > 31) {
417: document.$formname.$dname\_day.value = 31;
418: }
419: if ((month == 1) || (month == 3) || (month == 5) ||
420: (month == 7) || (month == 8) || (month == 10) ||
421: (month == 12)) {
422: if (day > 31) {
423: document.$formname.$dname\_day.value = 31;
424: day = 31;
425: }
426: } else if (month == 2 ) {
427: if ((year % 4 == 0) && (year % 100 != 0)) {
428: if (day > 29) {
429: document.$formname.$dname\_day.value = 29;
430: }
431: } else if (day > 29) {
432: document.$formname.$dname\_day.value = 28;
433: }
434: } else if (day > 30) {
435: document.$formname.$dname\_day.value = 30;
436: }
437: }
438:
439: function $dname\_disable() {
440: document.$formname.$dname\_month.disabled=true;
441: document.$formname.$dname\_day.disabled=true;
442: document.$formname.$dname\_year.disabled=true;
443: document.$formname.$dname\_hour.disabled=true;
444: document.$formname.$dname\_minute.disabled=true;
445: document.$formname.$dname\_second.disabled=true;
446: }
447:
448: function $dname\_enable() {
449: document.$formname.$dname\_month.disabled=false;
450: document.$formname.$dname\_day.disabled=false;
451: document.$formname.$dname\_year.disabled=false;
452: document.$formname.$dname\_hour.disabled=false;
453: document.$formname.$dname\_minute.disabled=false;
454: document.$formname.$dname\_second.disabled=false;
455: }
456:
457: function $dname\_opencalendar() {
458: if (! document.$formname.$dname\_month.disabled) {
459: var calwin=window.open(
460: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
461: document.$formname.$dname\_month.value+"&year="+
462: document.$formname.$dname\_year.value,
463: "LONCAPAcal",
464: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
465: }
466:
467: }
468: </script>
469: ENDJS
470: $result .= ' <span class="LC_nobreak">';
471: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
472: # Month
473: my @Months = qw/January February March April May June
474: July August September October November December/;
475: # Pad @Months with a bogus value to make indexing easier
476: unshift(@Months,'If you can read this an error occurred');
477: if ($includeempty) { $monthselector.="<option value=''></option>"; }
478: for(my $m = 1;$m <=$#Months;$m++) {
479: $monthselector .= qq{ <option value="$m" };
480: $monthselector .= "selected " if ($m-1 eq $month);
481: $monthselector .= '> '.&mt($Months[$m]).' </option>';
482: }
483: $monthselector.= ' </select>';
484: # Day
485: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
486: # Year
487: my $yearselector = qq{<input type="year" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
488: #
489: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
490: if ($includeempty) {
491: $hourselector.=qq{<option value=''></option>};
492: }
493: for (my $h = 0;$h<24;$h++) {
494: $hourselector .= qq{<option value="$h" };
495: $hourselector .= "selected " if (defined($hour) && $hour == $h);
496: $hourselector .= ">";
497: my $timest='';
498: if ($h == 0) {
499: $timest .= "12 am";
500: } elsif($h == 12) {
501: $timest .= "12 noon";
502: } elsif($h < 12) {
503: $timest .= "$h am";
504: } else {
505: $timest .= $h-12 ." pm";
506: }
507: $timest=&mt($timest);
508: $hourselector .= $timest." </option>\n";
509: }
510: $hourselector .= " </select>\n";
511: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
512: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
513: my $cal_link;
514: if (!$nolink) {
515: $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
516: }
517: #
518: my $tzone = ' '.$tzname.' ';
519: if ($no_hh_mm_ss) {
520: $result .= &mt('[_1] [_2] [_3] ',
521: $monthselector,$dayselector,$yearselector).
522: $tzone;
523: if (!$nolink) {
524: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
525: }
526: } else {
527: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
528: $monthselector,$dayselector,$yearselector,
529: $hourselector,$minuteselector,$secondselector).
530: $tzone;
531: if (!$nolink) {
532: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
533: }
534: }
535: $result .= "</span>\n<!-- end $dname date setting form -->\n";
536: return $result;
537: }
538:
539: sub get_timedates {
540: my ($epoch) = @_;
541: my $dt = DateTime->from_epoch(epoch => $epoch)
542: ->set_time_zone(&Apache::lonlocal::gettimezone());
543: my $tzname = $dt->time_zone_short_name();
544: my $sec = $dt->second;
545: my $min = $dt->minute;
546: my $hour = $dt->hour;
547: my $mday = $dt->day;
548: my $month = $dt->month;
549: if ($month) {
550: $month --;
551: }
552: my $year = $dt->year;
553: return ($tzname,$sec,$min,$hour,$mday,$month,$year);
554: }
555:
556: sub build_url {
557: my ($base, $fields)=@_;
558: my $url;
559: $url = $base.'?';
560: foreach my $key (keys(%$fields)) {
561: $url.=&escape($key).'='.&escape($$fields{$key}).'&';
562: }
563: $url =~ s/&$//;
564: return $url;
565: }
566:
567:
568: ##############################################
569: ##############################################
570:
571: =pod
572:
573: =item &get_date_from_form
574:
575: get_date_from_form retrieves the date specified in an &date_setter form.
576:
577: Inputs:
578:
579: =over 4
580:
581: =item $dname
582:
583: The name passed to &datesetter, which prefixes the form elements.
584:
585: =item $defaulttime
586:
587: The unix time to use as the default in case of poor inputs.
588:
589: =back
590:
591: Returns: Unix time represented in the form.
592:
593: =cut
594:
595: ##############################################
596: ##############################################
597: sub get_date_from_form {
598: my ($dname) = @_;
599: my ($sec,$min,$hour,$day,$month,$year);
600: #
601: if (defined($env{'form.'.$dname.'_second'})) {
602: my $tmpsec = $env{'form.'.$dname.'_second'};
603: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
604: $sec = $tmpsec;
605: }
606: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
607: } else {
608: $sec = 0;
609: }
610: if (defined($env{'form.'.$dname.'_minute'})) {
611: my $tmpmin = $env{'form.'.$dname.'_minute'};
612: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
613: $min = $tmpmin;
614: }
615: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
616: } else {
617: $min = 0;
618: }
619: if (defined($env{'form.'.$dname.'_hour'})) {
620: my $tmphour = $env{'form.'.$dname.'_hour'};
621: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
622: $hour = $tmphour;
623: }
624: } else {
625: $hour = 0;
626: }
627: if (defined($env{'form.'.$dname.'_day'})) {
628: my $tmpday = $env{'form.'.$dname.'_day'};
629: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
630: $day = $tmpday;
631: }
632: }
633: if (defined($env{'form.'.$dname.'_month'})) {
634: my $tmpmonth = $env{'form.'.$dname.'_month'};
635: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
636: $month = $tmpmonth;
637: }
638: }
639: if (defined($env{'form.'.$dname.'_year'})) {
640: my $tmpyear = $env{'form.'.$dname.'_year'};
641: if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
642: $year = $tmpyear;
643: }
644: }
645: if (($year<1970) || ($year>2037)) { return undef; }
646: if (defined($sec) && defined($min) && defined($hour) &&
647: defined($day) && defined($month) && defined($year)) {
648: my $timezone = &Apache::lonlocal::gettimezone();
649: my $dt = DateTime->new( year => $year,
650: month => $month,
651: day => $day,
652: hour => $hour,
653: minute => $min,
654: second => $sec,
655: time_zone => $timezone,
656: );
657: my $epoch_time = $dt->epoch;
658: if ($epoch_time ne '') {
659: return $epoch_time;
660: } else {
661: return undef;
662: }
663: } else {
664: return undef;
665: }
666: }
667:
668: ##############################################
669: ##############################################
670:
671: =pod
672:
673: =item &pjump_javascript_definition()
674:
675: Returns javascript defining the 'pjump' function, which opens up a
676: parameter setting wizard.
677:
678: =cut
679:
680: ##############################################
681: ##############################################
682: sub pjump_javascript_definition {
683: my $Str = <<END;
684: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
685: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
686: +"&value="+escape(value)+"&marker="+escape(marker)
687: +"&return="+escape(ret)
688: +"&call="+escape(call)+"&name="+escape(dis)
689: +"&defhour="+escape(hour)+"&defmin="+escape(min)
690: +"&defsec="+escape(sec),"LONCAPAparms",
691: "height=350,width=350,scrollbars=no,menubar=no");
692: }
693: END
694: return $Str;
695: }
696:
697: ##############################################
698: ##############################################
699:
700: =pod
701:
702: =item &javascript_nothing()
703:
704: Return an appropriate null for the users browser. This is used
705: as the first arguement for window.open calls when you want a blank
706: window that you can then write to.
707:
708: =cut
709:
710: ##############################################
711: ##############################################
712: sub javascript_nothing {
713: # mozilla and other browsers work with "''", but IE on mac does not.
714: my $nothing = "''";
715: my $user_browser;
716: my $user_os;
717: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
718: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
719: if (! defined($user_browser) || ! defined($user_os)) {
720: (undef,$user_browser,undef,undef,undef,$user_os) =
721: &Apache::loncommon::decode_user_agent();
722: }
723: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
724: $nothing = "'javascript:void(0);'";
725: }
726: return $nothing;
727: }
728:
729: ##############################################
730: ##############################################
731: sub javascript_docopen {
732: my ($mimetype) = @_;
733: $mimetype ||= 'text/html';
734: # safari does not understand document.open() and loads "text/html"
735: my $nothing = "''";
736: my $user_browser;
737: my $user_os;
738: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
739: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
740: if (! defined($user_browser) || ! defined($user_os)) {
741: (undef,$user_browser,undef,undef,undef,$user_os) =
742: &Apache::loncommon::decode_user_agent();
743: }
744: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
745: $nothing = "document.clear()";
746: } else {
747: $nothing = "document.open('$mimetype','replace')";
748: }
749: return $nothing;
750: }
751:
752:
753: ##############################################
754: ##############################################
755:
756: =pod
757:
758: =item &StatusOptions()
759:
760: Returns html for a selection box which allows the user to choose the
761: enrollment status of students. The selection box name is 'Status'.
762:
763: Inputs:
764:
765: $status: the currently selected status. If undefined the value of
766: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
767: is used.
768:
769: $formname: The name of the form. If defined the onchange attribute of
770: the selection box is set to document.$formname.submit().
771:
772: $size: the size (number of lines) of the selection box.
773:
774: $onchange: javascript to use when the value is changed. Enclosed in
775: double quotes, ""s, not single quotes.
776:
777: Returns: a perl string as described.
778:
779: =cut
780:
781: ##############################################
782: ##############################################
783: sub StatusOptions {
784: my ($status, $formName,$size,$onchange,$mult)=@_;
785: $size = 1 if (!defined($size));
786: if (! defined($status)) {
787: $status = 'Active';
788: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
789: }
790:
791: my $Str = '';
792: $Str .= '<select name="Status"';
793: if (defined($mult)){
794: $Str .= ' multiple="multiple" ';
795: }
796: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
797: $Str .= ' onchange="document.'.$formName.'.submit()"';
798: }
799: if (defined($onchange)) {
800: $Str .= ' onchange="'.$onchange.'"';
801: }
802: $Str .= ' size="'.$size.'" ';
803: $Str .= '>'."\n";
804: foreach my $type (['Active', &mt('Currently Has Access')],
805: ['Future', &mt('Will Have Future Access')],
806: ['Expired', &mt('Previously Had Access')],
807: ['Any', &mt('Any Access Status')]) {
808: my ($name,$label) = @$type;
809: $Str .= '<option value="'.$name.'" ';
810: if ($status eq $name) {
811: $Str .= 'selected="selected" ';
812: }
813: $Str .= '>'.$label.'</option>'."\n";
814: }
815:
816: $Str .= '</select>'."\n";
817: }
818:
819: ########################################################
820: ########################################################
821:
822: =pod
823:
824: =item Progess Window Handling Routines
825:
826: These routines handle the creation, update, increment, and closure of
827: progress windows. The progress window reports to the user the number
828: of items completed and an estimate of the time required to complete the rest.
829:
830: =over 4
831:
832:
833: =item &Create_PrgWin
834:
835: Writes javascript to the client to open a progress window and returns a
836: data structure used for bookkeeping.
837:
838: Inputs
839:
840: =over 4
841:
842: =item $r Apache request
843:
844: =item $title The title of the progress window
845:
846: =item $heading A description (usually 1 line) of the process being initiated.
847:
848: =item $number_to_do The total number of items being processed.
849:
850: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
851: specified)
852:
853: =item $width Specify the width in charaters of the input field.
854:
855: =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
856:
857: =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
858:
859: =back
860:
861: Returns a hash containing the progress state data structure.
862:
863:
864: =item &Update_PrgWin
865:
866: Updates the text in the progress indicator. Does not increment the count.
867: See &Increment_PrgWin.
868:
869: Inputs:
870:
871: =over 4
872:
873: =item $r Apache request
874:
875: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
876:
877: =item $displaystring The string to write to the status indicator
878:
879: =back
880:
881: Returns: none
882:
883:
884: =item Increment_PrgWin
885:
886: Increment the count of items completed for the progress window by 1.
887:
888: Inputs:
889:
890: =over 4
891:
892: =item $r Apache request
893:
894: =item $prog_state Pointer to the data structure returned by Create_PrgWin
895:
896: =item $extraInfo A description of the items being iterated over. Typically
897: 'student'.
898:
899: =back
900:
901: Returns: none
902:
903:
904: =item Close_PrgWin
905:
906: Closes the progress window.
907:
908: Inputs:
909:
910: =over 4
911:
912: =item $r Apache request
913:
914: =item $prog_state Pointer to the data structure returned by Create_PrgWin
915:
916: =back
917:
918: Returns: none
919:
920: =back
921:
922: =cut
923:
924: ########################################################
925: ########################################################
926:
927: my $uniq=0;
928: sub get_uniq_name {
929: $uniq++;
930: return 'uniquename'.$uniq;
931: }
932:
933: # Create progress
934: sub Create_PrgWin {
935: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
936: $inputname)=@_;
937: if (!defined($type)) { $type='popup'; }
938: if (!defined($width)) { $width=55; }
939: my %prog_state;
940: $prog_state{'type'}=$type;
941: if ($type eq 'popup') {
942: $prog_state{'window'}='popwin';
943: my $start_page =
944: &Apache::loncommon::start_page($title,undef,
945: {'only_body' => 1,
946: 'bgcolor' => '#88DDFF',
947: 'js_ready' => 1});
948: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
949:
950: #the whole function called through timeout is due to issues
951: #in mozilla Read BUG #2665 if you want to know the whole story
952: &r_print($r,'<script type="text/javascript">'.
953: "var popwin;
954: function openpopwin () {
955: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
956: "popwin.document.writeln(\'".$start_page.
957: "<h4>".&mt("$heading")."<\/h4>".
958: "<form action= \"\" name=\"popremain\" method=\"post\">".
959: '<input type="text" size="'.$width.'" name="remaining" value="'.
960: &mt('Starting').'" /><\\/form>'.$end_page.
961: "\');".
962: "popwin.document.close();}".
963: "\nwindow.setTimeout(openpopwin,0)</script>");
964: $prog_state{'formname'}='popremain';
965: $prog_state{'inputname'}="remaining";
966: } elsif ($type eq 'inline') {
967: $prog_state{'window'}='window';
968: if (!$formname) {
969: $prog_state{'formname'}=&get_uniq_name();
970: &r_print($r,'<form action="" name="'.$prog_state{'formname'}.'">');
971: } else {
972: $prog_state{'formname'}=$formname;
973: }
974: if (!$inputname) {
975: $prog_state{'inputname'}=&get_uniq_name();
976: &r_print($r,&mt("$heading [_1]",' <input type="text" name="'.$prog_state{'inputname'}.'" size="'.$width.'" />'));
977: } else {
978: $prog_state{'inputname'}=$inputname;
979:
980: }
981: if (!$formname) { &r_print($r,'</form>'); }
982: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
983: }
984:
985: $prog_state{'done'}=0;
986: $prog_state{'firststart'}=&Time::HiRes::time();
987: $prog_state{'laststart'}=&Time::HiRes::time();
988: $prog_state{'max'}=$number_to_do;
989:
990: return %prog_state;
991: }
992:
993: # update progress
994: sub Update_PrgWin {
995: my ($r,$prog_state,$displayString)=@_;
996: &r_print($r,'<script type="text/javascript">'.$$prog_state{'window'}.'.document.'.
997: $$prog_state{'formname'}.'.'.
998: $$prog_state{'inputname'}.'.value="'.
999: $displayString.'";</script>');
1000: $$prog_state{'laststart'}=&Time::HiRes::time();
1001: }
1002:
1003: # increment progress state
1004: sub Increment_PrgWin {
1005: my ($r,$prog_state,$extraInfo)=@_;
1006: $$prog_state{'done'}++;
1007: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
1008: $$prog_state{'done'} *
1009: ($$prog_state{'max'}-$$prog_state{'done'});
1010: $time_est = int($time_est);
1011: #
1012: my $min = int($time_est/60);
1013: my $sec = $time_est % 60;
1014: #
1015: my $str;
1016: if ($min == 0 && $sec > 1) {
1017: $str = '[_2] seconds';
1018: } elsif ($min == 1 && $sec > 1) {
1019: $str = '1 minute [_2] seconds';
1020: } elsif ($min == 1 && $sec < 2) {
1021: $str = '1 minute';
1022: } elsif ($min < 10 && $sec > 1) {
1023: $str = '[_1] minutes, [_2] seconds';
1024: } elsif ($min >= 10 || $sec < 2) {
1025: $str = '[_1] minutes';
1026: }
1027: $time_est = &mt($str,$min,$sec);
1028: #
1029: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
1030: if ($lasttime > 9) {
1031: $lasttime = int($lasttime);
1032: } elsif ($lasttime < 0.01) {
1033: $lasttime = 0;
1034: } else {
1035: $lasttime = sprintf("%3.2f",$lasttime);
1036: }
1037: if ($lasttime == 1) {
1038: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
1039: } else {
1040: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
1041: }
1042: #
1043: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
1044: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
1045: if (! defined($user_browser) || ! defined($user_os)) {
1046: (undef,$user_browser,undef,undef,undef,$user_os) =
1047: &Apache::loncommon::decode_user_agent();
1048: }
1049: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
1050: $lasttime = '';
1051: }
1052: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
1053: $$prog_state{'formname'}.'.'.
1054: $$prog_state{'inputname'}.'.value="'.
1055: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
1056: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
1057: $$prog_state{'laststart'}=&Time::HiRes::time();
1058: }
1059:
1060: # close Progress Line
1061: sub Close_PrgWin {
1062: my ($r,$prog_state)=@_;
1063: if ($$prog_state{'type'} eq 'popup') {
1064: &r_print($r,'<script>popwin.close()</script>'."\n");
1065: } elsif ($$prog_state{'type'} eq 'inline') {
1066: &Update_PrgWin($r,$prog_state,&mt('Done'));
1067: }
1068: undef(%$prog_state);
1069: }
1070:
1071: sub r_print {
1072: my ($r,$to_print)=@_;
1073: if ($r) {
1074: $r->print($to_print);
1075: $r->rflush();
1076: } else {
1077: print($to_print);
1078: }
1079: }
1080:
1081: # ------------------------------------------------------- Puts directory header
1082:
1083: sub crumbs {
1084: my ($uri,$target,$prefix,$form,$size,$noformat,$skiplast)=@_;
1085: if (! defined($size)) {
1086: $size = '+2';
1087: }
1088: if ($target) {
1089: $target = ' target="'.
1090: &Apache::loncommon::escape_single($target).'"';
1091: }
1092: my $output='';
1093: unless ($noformat) { $output.='<br /><tt><b>'; }
1094: $output.='<font size="'.$size.'">'.$prefix.'/';
1095: if ($env{'user.adv'}) {
1096: my $path=$prefix.'/';
1097: foreach my $dir (split('/',$uri)) {
1098: if (! $dir) { next; }
1099: $path .= $dir;
1100: if ($path eq $uri) {
1101: if ($skiplast) {
1102: $output.=$dir;
1103: last;
1104: }
1105: } else {
1106: $path.='/';
1107: }
1108: my $href_path = &HTML::Entities::encode($path,'<>&"');
1109: &Apache::loncommon::inhibit_menu_check(\$href_path);
1110: if ($form) {
1111: my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
1112: $output.=qq{<a href="$href" $target>$dir</a>/};
1113: } else {
1114: $output.=qq{<a href="$href_path" $target>$dir</a>/};
1115: }
1116: }
1117: } else {
1118: foreach my $dir (split('/',$uri)) {
1119: if (! $dir) { next; }
1120: $output.=$dir.'/';
1121: }
1122: }
1123: if ($uri !~ m|/$|) { $output=~s|/$||; }
1124: return $output.'</font>'.($noformat?'':'</b></tt><br />');
1125: }
1126:
1127: # --------------------- A function that generates a window for the spellchecker
1128:
1129: sub spellheader {
1130: my $start_page=
1131: &Apache::loncommon::start_page('Speller Suggestions',undef,
1132: {'only_body' => 1,
1133: 'js_ready' => 1,
1134: 'bgcolor' => '#DDDDDD',
1135: 'add_entries' => {
1136: 'onload' =>
1137: 'document.forms.spellcheckform.submit()',
1138: }
1139: });
1140: my $end_page=
1141: &Apache::loncommon::end_page({'js_ready' => 1});
1142:
1143: my $nothing=&javascript_nothing();
1144: return (<<ENDCHECK);
1145: <script type="text/javascript">
1146: //<!-- BEGIN LON-CAPA Internal
1147: var checkwin;
1148:
1149: function spellcheckerwindow(string) {
1150: var esc_string = string.replace(/\"/g,'"');
1151: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1152: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1153: checkwin.document.close();
1154: }
1155: // END LON-CAPA Internal -->
1156: </script>
1157: ENDCHECK
1158: }
1159:
1160: # ---------------------------------- Generate link to spell checker for a field
1161:
1162: sub spelllink {
1163: my ($form,$field)=@_;
1164: my $linktext=&mt('Check Spelling');
1165: return (<<ENDLINK);
1166: <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>
1167: ENDLINK
1168: }
1169:
1170: # ------------------------------------------------- Output headers for HTMLArea
1171:
1172: {
1173: my @htmlareafields;
1174: sub init_htmlareafields {
1175: undef(@htmlareafields);
1176: }
1177:
1178: sub add_htmlareafields {
1179: my (@newfields) = @_;
1180: push(@htmlareafields,@newfields);
1181: }
1182:
1183: sub get_htmlareafields {
1184: return @htmlareafields;
1185: }
1186: }
1187:
1188: sub htmlareaheaders {
1189: return if (&htmlareablocked());
1190: return if (!&htmlareabrowser());
1191: return (<<ENDHEADERS);
1192: <script type="text/javascript" src="/fckeditor/fckeditor.js"></script>
1193: ENDHEADERS
1194: }
1195:
1196: # ----------------------------------------------------------------- Preferences
1197:
1198: sub disablelink {
1199: my @fields=@_;
1200: if (defined($#fields)) {
1201: unless ($#fields>=0) { return ''; }
1202: }
1203: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1204: }
1205:
1206: sub enablelink {
1207: my @fields=@_;
1208: if (defined($#fields)) {
1209: unless ($#fields>=0) { return ''; }
1210: }
1211: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1212: }
1213:
1214: # ------------------------------------------------- lang to use in html editor
1215: sub htmlarea_lang {
1216: my $lang='en';
1217: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1218: $lang=&mt('htmlarea_lang');
1219: }
1220: return $lang;
1221: }
1222:
1223: # ----------------------------------------- Script to activate only some fields
1224:
1225: sub htmlareaselectactive {
1226: my @fields=@_;
1227: unless (&htmlareabrowser()) { return ''; }
1228: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1229: my $output='<script type="text/javascript" defer="1">';
1230: my $lang = &htmlarea_lang();
1231: foreach my $field (@fields) {
1232: $output.="
1233: {
1234: var oFCKeditor = new FCKeditor('$field');
1235: oFCKeditor.Config['CustomConfigurationsPath'] =
1236: '/fckeditor/loncapaconfig.js';
1237: oFCKeditor.ReplaceTextarea();
1238: oFCKeditor.Config['AutoDetectLanguage'] = false;
1239: oFCKeditor.Config['DefaultLanguage'] = '$lang';
1240: }";
1241: }
1242: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1243: &disablelink(@fields);
1244: return $output;
1245: }
1246:
1247: # --------------------------------------------------------------------- Blocked
1248:
1249: sub htmlareablocked {
1250: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1251: return 0;
1252: }
1253:
1254: # ---------------------------------------- Browser capable of running HTMLArea?
1255:
1256: sub htmlareabrowser {
1257: return 1;
1258: }
1259:
1260: ############################################################
1261: ############################################################
1262:
1263: =pod
1264:
1265: =item breadcrumbs
1266:
1267: Compiles the previously registered breadcrumbs into an series of links.
1268: FAQ and BUG links will be placed on the left side of the table if they
1269: are defined for the last registered breadcrumb.
1270: Additionally supports a 'component', which will be displayed on the
1271: right side of the table (without a link).
1272: A link to help for the component will be included if one is specified.
1273:
1274: All inputs can be undef without problems.
1275:
1276: Inputs: $component (the large text on the right side of the table),
1277: $component_help
1278: $menulink (boolean, controls whether to include a link to /adm/menu)
1279: $helplink (if 'nohelp' don't include the orange help link)
1280: $css_class (optional name for the class to apply to the table for CSS)
1281: $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
1282: when including the text on the right.
1283: Returns a string containing breadcrumbs for the current page.
1284:
1285: =item clear_breadcrumbs
1286:
1287: Clears the previously stored breadcrumbs.
1288:
1289: =item add_breadcrumb
1290:
1291: Pushes a breadcrumb on the stack of crumbs.
1292:
1293: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1294: are required. If present the keys 'faq' and 'bug' will be used to provide
1295: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title'
1296: and 'text' values won't be sent through &mt()
1297:
1298: returns: nothing
1299:
1300: =cut
1301:
1302: ############################################################
1303: ############################################################
1304: {
1305: my @Crumbs;
1306:
1307: sub breadcrumbs {
1308: my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt) = @_;
1309: #
1310: $css_class ||= 'LC_breadcrumbs';
1311: my $Str = "\n".'<table class="'.$css_class.'"><tr><td><ol id="LC_MenuBreadcrumbs">';
1312: #
1313: # Make the faq and bug data cascade
1314: my $faq = '';
1315: my $bug = '';
1316: my $help='';
1317: # Crumb Symbol
1318: my $crumbsymbol = ' ▶ ';
1319: # The last breadcrumb does not have a link, so handle it separately.
1320: my $last = pop(@Crumbs);
1321: #
1322: # The first one should be the course or a menu link
1323: if (!defined($menulink)) { $menulink=1; }
1324: if ($menulink) {
1325: my $description = 'Menu';
1326: my $no_mt_descr = 0;
1327: if (exists($env{'request.course.id'}) &&
1328: $env{'request.course.id'} ne '') {
1329: $description =
1330: $env{'course.'.$env{'request.course.id'}.'.description'};
1331: $no_mt_descr = 1;
1332: }
1333: unshift(@Crumbs,{
1334: href =>'/adm/menu',
1335: title =>'Go to main menu',
1336: target =>'_top',
1337: text =>$description,
1338: no_mt =>$no_mt_descr,
1339: });
1340: }
1341: my $links .=
1342: join($crumbsymbol,
1343: map {
1344: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1345: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1346: $help = $_->{'help'} if (exists($_->{'help'}));
1347: my $result = '<li><a href="'.$_->{'href'}.'" ';
1348: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1349: $result .= 'target="'.$_->{'target'}.'" ';
1350: }
1351: if ($_->{'no_mt'}) {
1352: $result .='title="'.$_->{'title'}.'">'.
1353: $_->{'text'}.'</a></li>';
1354: } else {
1355: $result .='title="'.&mt($_->{'title'}).'">'.
1356: &mt($_->{'text'}).'</a></li>';
1357: }
1358: $result;
1359: } @Crumbs
1360: );
1361: $links .= $crumbsymbol if ($links ne '');
1362: if ($last->{'no_mt'}) {
1363: $links .= '<li><b>'.$last->{'text'}.'</b></li>';
1364: } else {
1365: $links .= '<li><b>'.&mt($last->{'text'}).'</b></li>';
1366: }
1367: #
1368: my $icons = '';
1369: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1370: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1371: $help = $last->{'help'} if (exists($last->{'help'}));
1372: $component_help=($component_help?$component_help:$help);
1373: # if ($faq ne '') {
1374: # $icons .= &Apache::loncommon::help_open_faq($faq);
1375: # }
1376: # if ($bug ne '') {
1377: # $icons .= &Apache::loncommon::help_open_bug($bug);
1378: # }
1379: if ($faq ne '' || $component_help ne '' || $bug ne '') {
1380: $icons .= &Apache::loncommon::help_open_menu($component,
1381: $component_help,
1382: $faq,$bug);
1383: }
1384: #
1385: $Str .= $links.'</ol></td>';
1386: #
1387: if (defined($component)) {
1388: $Str .= '<td class="'.$css_class.'_component">';
1389: if ($no_mt) {
1390: $Str .= $component;
1391: } else {
1392: $Str .= &mt($component);
1393: }
1394: if ($icons ne '') {
1395: $Str .= ' '.$icons;
1396: }
1397: $Str .= '</td>';
1398: }
1399: $Str .= '</tr></table>'."\n";
1400: #
1401: # Return the @Crumbs stack to what we started with
1402: push(@Crumbs,$last);
1403: shift(@Crumbs);
1404: #
1405: return $Str;
1406: }
1407:
1408: sub clear_breadcrumbs {
1409: undef(@Crumbs);
1410: }
1411:
1412: sub add_breadcrumb {
1413: push (@Crumbs,@_);
1414: }
1415:
1416: } # End of scope for @Crumbs
1417:
1418: ############################################################
1419: ############################################################
1420:
1421: # Nested table routines.
1422: #
1423: # Routines to display form items in a multi-row table with 2 columns.
1424: # Uses nested tables to divide form elements into segments.
1425: # For examples of use see loncom/interface/lonnotify.pm
1426: #
1427: # Can be used in following order: ...
1428: # &start_pick_box()
1429: # row1
1430: # row2
1431: # row3 ... etc.
1432: # &submit_row()
1433: # &end_pick_box()
1434: #
1435: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1436: # &status_select_row and &email_default_row
1437: #
1438: # Can also be used in following order:
1439: #
1440: # &start_pick_box()
1441: # &row_title()
1442: # &row_closure()
1443: # &row_title()
1444: # &row_closure() ... etc.
1445: # &submit_row()
1446: # &end_pick_box()
1447: #
1448: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1449: # as this routine adds a button for form submission.
1450: # &submit_row() does not require a &row_closure after it.
1451: #
1452: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1453: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1454: #
1455: # &row_title() adds a title in the left column for each segment.
1456: # &row_closure() closes a row with a 1-pixel wide black line.
1457: #
1458: # &role_select_row() provides a select box from which to choose 1 or more roles
1459: # &course_select_row provides ways of picking groups of courses
1460: # radio buttons: all, by category or by picking from a course picker pop-up
1461: # note: by category option is only displayed if a domain has implemented
1462: # selection by year, semester, department, number etc.
1463: #
1464: # &status_select_row() provides a select box from which to choose 1 or more
1465: # access types (current access, prior access, and future access)
1466: #
1467: # &email_default_row() provides text boxes for default e-mail suffixes for
1468: # different authentication types in a domain.
1469: #
1470: # &row_title() and &row_closure() are called internally by the &*_select_row
1471: # routines, but can also be called directly to start and end rows which have
1472: # needs that are not accommodated by the *_select_row() routines.
1473:
1474: { # Start: row_count block for pick_box
1475: my @row_count;
1476:
1477: sub start_pick_box {
1478: my ($css_class) = @_;
1479: if (defined($css_class)) {
1480: $css_class = 'class="'.$css_class.'"';
1481: } else {
1482: $css_class= 'class="LC_pick_box"';
1483: }
1484: unshift(@row_count,0);
1485: my $output = <<"END";
1486: <table $css_class>
1487: END
1488: return $output;
1489: }
1490:
1491: sub end_pick_box {
1492: shift(@row_count);
1493: my $output = <<"END";
1494: </table>
1495: END
1496: return $output;
1497: }
1498:
1499: sub row_headline {
1500: my $output = <<"END";
1501: <tr><td colspan="2">
1502: END
1503: return $output;
1504: }
1505:
1506: sub row_title {
1507: $row_count[0]++;
1508: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
1509: my ($title,$css_title_class,$css_value_class) = @_;
1510: $css_title_class ||= 'LC_pick_box_title';
1511: $css_title_class = 'class="'.$css_title_class.'"';
1512:
1513: $css_value_class ||= 'LC_pick_box_value';
1514:
1515: if ($title ne '') {
1516: $title .= ':';
1517: }
1518: my $output = <<"ENDONE";
1519: <tr class="LC_pick_box_row">
1520: <td $css_title_class>
1521: $title
1522: </td>
1523: <td class="$css_value_class $css_class">
1524: ENDONE
1525: return $output;
1526: }
1527:
1528: sub row_closure {
1529: my ($no_separator) =@_;
1530: my $output = <<"ENDTWO";
1531: </td>
1532: </tr>
1533: ENDTWO
1534: if (!$no_separator) {
1535: $output .= <<"ENDTWO";
1536: <tr>
1537: <td colspan="2" class="LC_pick_box_separator">
1538: </td>
1539: </tr>
1540: ENDTWO
1541: }
1542: return $output;
1543: }
1544:
1545: } # End: row_count block for pick_box
1546:
1547:
1548: sub role_select_row {
1549: my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
1550: my $output;
1551: if (defined($title)) {
1552: $output = &row_title($title,$css_class);
1553: }
1554: $output .= qq|
1555: <select name="roles" multiple >\n|;
1556: foreach my $role (@$roles) {
1557: my $plrole;
1558: if ($role eq 'ow') {
1559: $plrole = &mt('Course Owner');
1560: } elsif ($role eq 'cr') {
1561: if ($show_separate_custom) {
1562: if ($cdom ne '' && $cnum ne '') {
1563: my %course_customroles = &course_custom_roles($cdom,$cnum);
1564: foreach my $crrole (sort(keys(%course_customroles))) {
1565: my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
1566: $output .= ' <option value="'.$crrole.'">'.$plcrrole.
1567: '</option>';
1568: }
1569: }
1570: } else {
1571: $plrole = &mt('Custom Role');
1572: }
1573: } else {
1574: $plrole=&Apache::lonnet::plaintext($role);
1575: }
1576: if (($role ne 'cr') || (!$show_separate_custom)) {
1577: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1578: }
1579: }
1580: $output .= qq| </select>\n|;
1581: if (defined($title)) {
1582: $output .= &row_closure();
1583: }
1584: return $output;
1585: }
1586:
1587: sub course_select_row {
1588: my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
1589: $css_class) = @_;
1590: my $output = &row_title($title,$css_class);
1591: $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles);
1592: $output .= &row_closure();
1593: return $output;
1594: }
1595:
1596: sub course_selection {
1597: my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1598: my $output = qq|
1599: <script type="text/javascript">
1600: function coursePick (formname) {
1601: for (var i=0; i<formname.coursepick.length; i++) {
1602: if (formname.coursepick[i].value == 'category') {
1603: courseSet('');
1604: }
1605: if (!formname.coursepick[i].checked) {
1606: if (formname.coursepick[i].value == 'specific') {
1607: formname.coursetotal.value = 0;
1608: formname.courselist = '';
1609: }
1610: }
1611: }
1612: }
1613: function setPick (formname) {
1614: for (var i=0; i<formname.coursepick.length; i++) {
1615: if (formname.coursepick[i].value == 'category') {
1616: formname.coursepick[i].checked = true;
1617: }
1618: formname.coursetotal.value = 0;
1619: formname.courselist = '';
1620: }
1621: }
1622: </script>
1623: |;
1624: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1625: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1626: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses').'<br />';
1627: if ($totcodes > 0) {
1628: my $numtitles = @$codetitles;
1629: if ($numtitles > 0) {
1630: $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 />';
1631: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1632: '<select name="'.$$codetitles[0].
1633: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1634: ' <option value="-1" />Select'."\n";
1635: my @items = ();
1636: my @longitems = ();
1637: if ($$idlist{$$codetitles[0]} =~ /","/) {
1638: @items = split(/","/,$$idlist{$$codetitles[0]});
1639: } else {
1640: $items[0] = $$idlist{$$codetitles[0]};
1641: }
1642: if (defined($$idlist_titles{$$codetitles[0]})) {
1643: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1644: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1645: } else {
1646: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1647: }
1648: for (my $i=0; $i<@longitems; $i++) {
1649: if ($longitems[$i] eq '') {
1650: $longitems[$i] = $items[$i];
1651: }
1652: }
1653: } else {
1654: @longitems = @items;
1655: }
1656: for (my $i=0; $i<@items; $i++) {
1657: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1658: }
1659: $output .= '</select></td>';
1660: for (my $i=1; $i<$numtitles; $i++) {
1661: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1662: '<select name="'.$$codetitles[$i].
1663: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1664: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1665: '</select>'."\n".
1666: '</td>';
1667: }
1668: $output .= '</tr></table><br />';
1669: }
1670: }
1671: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$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";
1672: return $output;
1673: }
1674:
1675: sub status_select_row {
1676: my ($types,$title,$css_class) = @_;
1677: my $output;
1678: if (defined($title)) {
1679: $output = &row_title($title,$css_class,'LC_pick_box_select');
1680: }
1681: $output .= qq|
1682: <select name="types" multiple>\n|;
1683: foreach my $status_type (sort(keys(%{$types}))) {
1684: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1685: }
1686: $output .= qq| </select>\n|;
1687: if (defined($title)) {
1688: $output .= &row_closure();
1689: }
1690: return $output;
1691: }
1692:
1693: sub email_default_row {
1694: my ($authtypes,$title,$descrip,$css_class) = @_;
1695: my $output = &row_title($title,$css_class);
1696: $output .= $descrip.
1697: &Apache::loncommon::start_data_table().
1698: &Apache::loncommon::start_data_table_header_row().
1699: '<th>'.&mt('Authentication Method').'</th>'.
1700: '<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
1701: &Apache::loncommon::end_data_table_header_row();
1702: my $rownum = 0;
1703: foreach my $auth (sort(keys(%{$authtypes}))) {
1704: my ($userentry,$size);
1705: if ($auth =~ /^krb/) {
1706: $userentry = '';
1707: $size = 25;
1708: } else {
1709: $userentry = 'username@';
1710: $size = 15;
1711: }
1712: $output .= &Apache::loncommon::start_data_table_row().
1713: '<td> '.$$authtypes{$auth}.'</td>'.
1714: '<td align="right">'.$userentry.
1715: '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
1716: &Apache::loncommon::end_data_table_row();
1717: }
1718: $output .= &Apache::loncommon::end_data_table();
1719: $output .= &row_closure();
1720: return $output;
1721: }
1722:
1723:
1724: sub submit_row {
1725: my ($title,$cmd,$submit_text,$css_class) = @_;
1726: $submit_text = &mt($submit_text);
1727: my $output = &row_title($title,$css_class,'LC_pick_box_submit');
1728: $output .= qq|
1729: <br />
1730: <input type="hidden" name="command" value="$cmd" />
1731: <input type="submit" value="$submit_text"/>
1732: <br /><br />
1733: \n|;
1734: return $output;
1735: }
1736:
1737: sub course_custom_roles {
1738: my ($cdom,$cnum) = @_;
1739: my %returnhash=();
1740: my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
1741: foreach my $person (sort(keys(%coursepersonnel))) {
1742: my ($role) = ($person =~ /^([^:]+):/);
1743: my ($end,$start) = split(/:/,$coursepersonnel{$person});
1744: if ($end == -1 && $start == -1) {
1745: next;
1746: }
1747: if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
1748: $returnhash{$role} ++;
1749: }
1750: }
1751: return %returnhash;
1752: }
1753:
1754:
1755: ##############################################
1756: ##############################################
1757:
1758: # topic_bar
1759: #
1760: # Generates a div containing a numbered (static image) followed by a title
1761: # with a background color defined in the corresponding CSS: LC_topic_bar
1762: #
1763: sub topic_bar {
1764: my ($imgnum,$title) = @_;
1765: return '
1766: <div class="LC_topic_bar">
1767: <img alt="'.&mt('Step [_1]',$imgnum).
1768: '"src="/res/adm/pages/bl_step'.$imgnum.'.gif" />
1769: <span>'.$title.'</span>
1770: </div>
1771: ';
1772: }
1773:
1774: ##############################################
1775: ##############################################
1776:
1777: # echo_form_input
1778: #
1779: # Generates html markup to add form elements from the referrer page
1780: # as hidden form elements (values encoded) in the new page.
1781: #
1782: # Intended to support two types of use
1783: # (a) to allow backing up to earlier pages in a multi-page
1784: # form submission process using a breadcrumb trail.
1785: #
1786: # (b) to allow the current page to be reloaded with form elements
1787: # set on previous page to remain unchanged. An example would
1788: # be where the a page containing a dynamically-built table of data is
1789: # is to be redisplayed, with only the sort order of the data changed.
1790: #
1791: # Inputs:
1792: # 1. Reference to array of form elements in the submitted form on
1793: # the referrer page which are to be excluded from the echoed elements.
1794: #
1795: # 2. Reference to array of regular expressions, which if matched in the
1796: # name of the form element n the referrer page will be omitted from echo.
1797: #
1798: # Outputs: A scalar containing the html markup for the echoed form
1799: # elements (all as hidden elements, with values encoded).
1800:
1801:
1802: sub echo_form_input {
1803: my ($excluded,$regexps) = @_;
1804: my $output = '';
1805: foreach my $key (keys(%env)) {
1806: if ($key =~ /^form\.(.+)$/) {
1807: my $name = $1;
1808: my $match = 0;
1809: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1810: if (defined($regexps)) {
1811: if (@{$regexps} > 0) {
1812: foreach my $regexp (@{$regexps}) {
1813: if ($name =~ /\Q$regexp\E/) {
1814: $match = 1;
1815: last;
1816: }
1817: }
1818: }
1819: }
1820: if (!$match) {
1821: if (ref($env{$key})) {
1822: foreach my $value (@{$env{$key}}) {
1823: $value = &HTML::Entities::encode($value,'<>&"');
1824: $output .= '<input type="hidden" name="'.$name.
1825: '" value="'.$value.'" />'."\n";
1826: }
1827: } else {
1828: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1829: $output .= '<input type="hidden" name="'.$name.
1830: '" value="'.$value.'" />'."\n";
1831: }
1832: }
1833: }
1834: }
1835: }
1836: return $output;
1837: }
1838:
1839: ##############################################
1840: ##############################################
1841:
1842: # set_form_elements
1843: #
1844: # Generates javascript to set form elements to values based on
1845: # corresponding values for the same form elements when the page was
1846: # previously submitted.
1847: #
1848: # Last submission values are read from hidden form elements in referring
1849: # page which have the same name, i.e., generated by &echo_form_input().
1850: #
1851: # Intended to be called by onload event.
1852: #
1853: # Inputs:
1854: # (a) Reference to hash of echoed form elements to be set.
1855: #
1856: # In the hash, keys are the form element names, and the values are the
1857: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1858: # hidden).
1859: #
1860: # (b) Optional reference to hash of stored elements to be set.
1861: #
1862: # If the page being displayed is a page which permits modification of
1863: # previously stored data, e.g., the first page in a multi-page submission,
1864: # then if stored is supplied, form elements will be set to the last stored
1865: # values. If user supplied values are also available for the same elements
1866: # these will replace the stored values.
1867: #
1868: # Output:
1869: #
1870: # javascript function - set_form_elements() which sets form elements,
1871: # expects an argument: formname - the name of the form according to
1872: # the DOM, e.g., document.compose
1873:
1874: sub set_form_elements {
1875: my ($elements,$stored) = @_;
1876: my %values;
1877: my $output .= 'function setFormElements(courseForm) {
1878: ';
1879: if (defined($stored)) {
1880: foreach my $name (keys(%{$stored})) {
1881: if (exists($$elements{$name})) {
1882: if (ref($$stored{$name}) eq 'ARRAY') {
1883: $values{$name} = $$stored{$name};
1884: } else {
1885: @{$values{$name}} = ($$stored{$name});
1886: }
1887: }
1888: }
1889: }
1890:
1891: foreach my $key (keys(%env)) {
1892: if ($key =~ /^form\.(.+)$/) {
1893: my $name = $1;
1894: if (exists($$elements{$name})) {
1895: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1896: }
1897: }
1898: }
1899:
1900: foreach my $name (keys(%values)) {
1901: for (my $i=0; $i<@{$values{$name}}; $i++) {
1902: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1903: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1904: $values{$name}[$i] =~ s/"/\\"/g;
1905: }
1906: if ($$elements{$name} eq 'text') {
1907: my $numvalues = @{$values{$name}};
1908: if ($numvalues > 1) {
1909: my $valuestring = join('","',@{$values{$name}});
1910: $output .= qq|
1911: var textvalues = new Array ("$valuestring");
1912: var total = courseForm.elements['$name'].length;
1913: if (total > $numvalues) {
1914: total = $numvalues;
1915: }
1916: for (var i=0; i<total; i++) {
1917: courseForm.elements['$name']\[i].value = textvalues[i];
1918: }
1919: |;
1920: } else {
1921: $output .= qq|
1922: courseForm.elements['$name'].value = "$values{$name}[0]";
1923: |;
1924: }
1925: } else {
1926: $output .= qq|
1927: var elementLength = courseForm.elements['$name'].length;
1928: if (elementLength==undefined) {
1929: |;
1930: foreach my $value (@{$values{$name}}) {
1931: if ($$elements{$name} eq 'selectbox') {
1932: $output .= qq|
1933: if (courseForm.elements['$name'].options[0].value == "$value") {
1934: courseForm.elements['$name'].options[0].selected = true;
1935: }|;
1936: } elsif (($$elements{$name} eq 'radio') ||
1937: ($$elements{$name} eq 'checkbox')) {
1938: $output .= qq|
1939: if (courseForm.elements['$name'].value == "$value") {
1940: courseForm.elements['$name'].checked = true;
1941: }|;
1942: }
1943: }
1944: $output .= qq|
1945: }
1946: else {
1947: for (var i=0; i<courseForm.elements['$name'].length; i++) {
1948: |;
1949: if ($$elements{$name} eq 'selectbox') {
1950: $output .= qq|
1951: courseForm.elements['$name'].options[i].selected = false;|;
1952: } elsif (($$elements{$name} eq 'radio') ||
1953: ($$elements{$name} eq 'checkbox')) {
1954: $output .= qq|
1955: courseForm.elements['$name']\[i].checked = false;|;
1956: }
1957: $output .= qq|
1958: }
1959: for (var j=0; j<courseForm.elements['$name'].length; j++) {
1960: |;
1961: foreach my $value (@{$values{$name}}) {
1962: if ($$elements{$name} eq 'selectbox') {
1963: $output .= qq|
1964: if (courseForm.elements['$name'].options[j].value == "$value") {
1965: courseForm.elements['$name'].options[j].selected = true;
1966: }|;
1967: } elsif (($$elements{$name} eq 'radio') ||
1968: ($$elements{$name} eq 'checkbox')) {
1969: $output .= qq|
1970: if (courseForm.elements['$name']\[j].value == "$value") {
1971: courseForm.elements['$name']\[j].checked = true;
1972: }|;
1973: }
1974: }
1975: $output .= qq|
1976: }
1977: }
1978: |;
1979: }
1980: }
1981: $output .= "
1982: }\n";
1983: return $output;
1984: }
1985:
1986: ##############################################
1987: ##############################################
1988:
1989: # javascript_valid_email
1990: #
1991: # Generates javascript to validate an e-mail address.
1992: # Returns a javascript function which accetps a form field as argumnent, and
1993: # returns false if field.value does not satisfy two regular expression matches
1994: # for a valid e-mail address. Backwards compatible with old browsers without
1995: # support for javascript RegExp (just checks for @ in field.value in this case).
1996:
1997: sub javascript_valid_email {
1998: my $scripttag .= <<'END';
1999: function validmail(field) {
2000: var str = field.value;
2001: if (window.RegExp) {
2002: var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
2003: var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
2004: var reg1 = new RegExp(reg1str);
2005: var reg2 = new RegExp(reg2str);
2006: if (!reg1.test(str) && reg2.test(str)) {
2007: return true;
2008: }
2009: return false;
2010: }
2011: else
2012: {
2013: if(str.indexOf("@") >= 0) {
2014: return true;
2015: }
2016: return false;
2017: }
2018: }
2019: END
2020: return $scripttag;
2021: }
2022:
2023: ##############################################
2024: ##############################################
2025:
2026: # generate_menu
2027: #
2028: # Generates html markup for a menu.
2029: #
2030: # Inputs:
2031: # An array of following structure:
2032: # ({ categorytitle => 'Categorytitle',
2033: # items => [
2034: # { linktext => 'Text to be displayed',
2035: # url => 'URL the link is pointing to, i.e. /adm/site?action=dosomething',
2036: # permission => 'Contains permissions as returned from lonnet::allowed(),
2037: # must evaluate to true in order to activate the link',
2038: # icon => 'icon filename',
2039: # alttext => 'alt text for the icon',
2040: # help => 'Name of the corresponding helpfile',
2041: # linktitle => 'Description of the link (used for title tag)'
2042: # },
2043: # ...
2044: # ]
2045: # },
2046: # ...
2047: # )
2048: #
2049: # Outputs: A scalar containing the html markup for the menu.
2050:
2051: # ---- Remove when done ----
2052: # This routine is part of the redesign of LON-CAPA and it's
2053: # subject to change during this project.
2054: # Don't rely on its current functionality as it might be
2055: # changed or removed.
2056: # TODO:
2057: # check for empty values
2058: # --------------------------
2059:
2060: sub generate_menu {
2061: my @menu = @_;
2062: my $menu_html = qq|<div class="LC_columnSection">|;
2063:
2064: foreach my $category (@menu) { #FIXME: insert appropriate classnames for styles when they're finished.
2065: $menu_html .='<div class="LC_ContentBoxSpecial">
2066: <h3 class="LC_hcell">'.mt($category->{'categorytitle'}).'</h3>
2067: <ul class="LC_ListStyleNormal">';
2068: foreach my $item ( @{ $category->{items} } ) {
2069: next unless $item->{'permission'};
2070: $menu_html .= qq|<li class="LC_menubuttons_inline_text"><a href="$item->{'url'}" title="|.mt($item->{'linktitle'}).'">';
2071: if($item->{'icon'}){
2072: $menu_html .= qq|<img class ="LC_noBorder LC_middle" src="/res/adm/pages/$item->{'icon'}" alt="|;
2073: if($item->{'alttext'}){
2074: $menu_html .= $item->{'alttext'}.'"/></a>';
2075: } else { #use linktext as alt text for the icon
2076: $menu_html .= qq|$item->{'linktext'}"/></a>|;
2077: }
2078: }
2079: $menu_html .= qq|<a href="$item->{'url'}" title="|.mt($item->{'linktitle'}).'">';
2080: $menu_html .= mt($item->{'linktext'}).'</a>';
2081: if (exists($item->{'help'})) {
2082: $menu_html .= Apache::loncommon::help_open_topic($item->{'help'});
2083: }
2084: $menu_html .= '</li>';
2085: }
2086: $menu_html .= '</ul></div>';
2087: }
2088: $menu_html .= qq|</div>|;
2089: return $menu_html;
2090: }
2091:
2092:
2093: 1;
2094:
2095: __END__
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