1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.322 2012/09/10 09:51:06 foxr 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 HTML::Entities();
64: use LONCAPA;
65:
66: sub java_not_enabled {
67: return "\n".'<span class="LC_error">'.
68: &mt('The required Java applet could not be started. Please make sure to have Java installed and active in your browser.').
69: "</span>\n";
70: }
71:
72: sub coursepreflink {
73: my ($text,$category)=@_;
74: if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
75: return '<a target="_top" href="'.&HTML::Entities::encode("/adm/courseprefs?phase=display&actions=$category",'<>&"').'"><span class="LC_setting">'.$text.'</span></a>';
76: } else {
77: return '';
78: }
79: }
80:
81: sub raw_href_to_link {
82: my ($message)=@_;
83: $message=~s/(https?\:\/\/[^\s\'\"\<]+)([\s\<]|$)/<a href="$1"><tt>$1<\/tt><\/a>$2/gi;
84: return $message;
85: }
86:
87: sub entity_encode {
88: my ($text)=@_;
89: return &HTML::Entities::encode($text, '<>&"');
90: }
91:
92: sub direct_parm_link {
93: my ($linktext,$symb,$filter,$part,$target)=@_;
94: $symb=&entity_encode($symb);
95: $filter=&entity_encode($filter);
96: $part=&entity_encode($part);
97: if (($symb) && (&Apache::lonnet::allowed('opa')) && ($target ne 'tex')) {
98: return "<a target='_top' href='/adm/parmset?symb=$symb&filter=$filter&part=$part'><span class='LC_setting'>$linktext</span></a>";
99: } else {
100: return $linktext;
101: }
102: }
103: ##############################################
104: ##############################################
105:
106: =item &confirm_success()
107:
108: Successful completion of an operation message
109:
110: =cut
111:
112: sub confirm_success {
113: my ($message,$failure)=@_;
114: if ($failure) {
115: return '<span class="LC_error" style="font-size: inherit;">'."\n"
116: .'<img src="/adm/lonIcons/navmap.wrong.gif" alt="'.&mt('Error').'" /> '."\n"
117: .$message."\n"
118: .'</span>'."\n";
119: } else {
120: return '<span class="LC_success">'."\n"
121: .'<img src="/adm/lonIcons/navmap.correct.gif" alt="'.&mt('OK').'" /> '."\n"
122: .$message."\n"
123: .'</span>'."\n";
124: }
125: }
126:
127: ##############################################
128: ##############################################
129:
130: =pod
131:
132: =item &dragmath_button()
133:
134: Creates a button that launches a dragmath popup-window, in which an
135: expression can be edited and pasted as LaTeX into a specified textarea.
136:
137: textarea - Name of the textarea to edit.
138: helpicon - If true, show a help icon to the right of the button.
139:
140: =cut
141:
142: sub dragmath_button {
143: my ($textarea,$helpicon) = @_;
144: my $help_text;
145: if ($helpicon) {
146: $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor',undef,undef,undef,undef,'mathhelpicon_'.$textarea);
147: }
148: my $buttontext=&mt('Edit Math');
149: return <<ENDDRAGMATH;
150: <input type="button" value="$buttontext" onclick="javascript:mathedit('$textarea',document)" />$help_text
151: ENDDRAGMATH
152: }
153:
154: ##############################################
155:
156: =pod
157:
158: =item &dragmath_js()
159:
160: Javascript used to open pop-up window containing dragmath applet which
161: can be used to paste LaTeX into a textarea.
162:
163: =cut
164:
165: sub dragmath_js {
166: my ($popup) = @_;
167: return <<ENDDRAGMATHJS;
168: <script type="text/javascript">
169: // <![CDATA[
170: function mathedit(textarea, doc) {
171: targetEntry = textarea;
172: targetDoc = doc;
173: newwin = window.open("/adm/dragmath/applet/$popup.html","","width=565,height=500,resizable");
174: }
175: // ]]>
176: </script>
177:
178: ENDDRAGMATHJS
179: }
180:
181: ##############################################
182: ##############################################
183:
184: =pod
185:
186: =item &dependencies_button()
187:
188: Creates a button that launches a popup-window, in which dependencies
189: for the web page in the main window can be added to, replaced or deleted.
190:
191: =cut
192:
193: sub dependencies_button {
194: my $buttontext=&mt('Manage Dependencies');
195: return <<"END";
196: <input type="button" value="$buttontext" onclick="javascript:dependencycheck();" />
197: END
198: }
199:
200: ##############################################
201:
202: =pod
203:
204: =item &dependencycheck_js()
205:
206: Javascript used to open pop-up window containing interface to manage
207: dependencies for a web page uploaded diretcly to a course.
208:
209: =cut
210:
211: sub dependencycheck_js {
212: my ($symb,$title,$url) = @_;
213: my $link = '/adm/dependencies?symb='.&HTML::Entities::encode($symb,'<>&"').
214: '&title='.&HTML::Entities::encode($title,'<>&"').
215: '&url='.&HTML::Entities::encode($url,'<>&"');
216: return <<ENDJS;
217: <script type="text/javascript">
218: // <![CDATA[
219: function dependencycheck() {
220: depwin = window.open("$link","","width=750,height=500,resizable,scrollbars=yes");
221: }
222: // ]]>
223: </script>
224: ENDJS
225: }
226:
227: ##############################################
228: ##############################################
229:
230: =pod
231:
232: =item &authorbombs()
233:
234: =cut
235:
236: ##############################################
237: ##############################################
238:
239: sub authorbombs {
240: my $url=shift;
241: $url=&Apache::lonnet::declutter($url);
242: my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
243: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
244: foreach my $bomb (keys(%bombs)) {
245: if ($bomb =~ /^$udom\/$uname\//) {
246: return '<a href="/adm/bombs/'.$url.
247: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" alt="'.&mt('Bomb').'" border="0" /></a>'.
248: &Apache::loncommon::help_open_topic('About_Bombs');
249: }
250: }
251: return '';
252: }
253:
254: ##############################################
255: ##############################################
256:
257: sub recent_filename {
258: my $area=shift;
259: return 'nohist_recent_'.&escape($area);
260: }
261:
262: sub store_recent {
263: my ($area,$name,$value,$freeze)=@_;
264: my $file=&recent_filename($area);
265: my %recent=&Apache::lonnet::dump($file);
266: if (scalar(keys(%recent))>20) {
267: # remove oldest value
268: my $oldest=time();
269: my $delkey='';
270: foreach my $item (keys(%recent)) {
271: my $thistime=(split(/\&/,$recent{$item}))[0];
272: if (($thistime ne "always_include") && ($thistime<$oldest)) {
273: $oldest=$thistime;
274: $delkey=$item;
275: }
276: }
277: &Apache::lonnet::del($file,[$delkey]);
278: }
279: # store new value
280: my $timestamp;
281: if ($freeze) {
282: $timestamp = "always_include";
283: } else {
284: $timestamp = time();
285: }
286: &Apache::lonnet::put($file,{ $name =>
287: $timestamp.'&'.&escape($value) });
288: }
289:
290: sub remove_recent {
291: my ($area,$names)=@_;
292: my $file=&recent_filename($area);
293: return &Apache::lonnet::del($file,$names);
294: }
295:
296: sub select_recent {
297: my ($area,$fieldname,$event)=@_;
298: my %recent=&Apache::lonnet::dump(&recent_filename($area));
299: my $return="\n<select name='$fieldname'".
300: ($event?" onchange='$event'":'').
301: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
302: foreach my $value (sort(keys(%recent))) {
303: unless ($value =~/^error\:/) {
304: my $escaped = &Apache::loncommon::escape_url($value);
305: &Apache::loncommon::inhibit_menu_check(\$escaped);
306: if ($area eq 'residx') {
307: next if ((!&Apache::lonnet::allowed('bre',$value)) && (!&Apache::lonnet::allowed('bro',$value)));
308: }
309: $return.="\n<option value='$escaped'>".
310: &unescape((split(/\&/,$recent{$value}))[1]).
311: '</option>';
312: }
313: }
314: $return.="\n</select>\n";
315: return $return;
316: }
317:
318: sub get_recent {
319: my ($area, $n) = @_;
320: my %recent=&Apache::lonnet::dump(&recent_filename($area));
321:
322: # Create hash with key as time and recent as value
323: # Begin filling return_hash with any 'always_include' option
324: my %time_hash = ();
325: my %return_hash = ();
326: foreach my $item (keys(%recent)) {
327: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
328: if ($thistime eq 'always_include') {
329: $return_hash{$item} = &unescape($thisvalue);
330: $n--;
331: } else {
332: $time_hash{$thistime} = $item;
333: }
334: }
335:
336: # Sort by decreasing time and return key value pairs
337: my $idx = 1;
338: foreach my $item (reverse(sort(keys(%time_hash)))) {
339: $return_hash{$time_hash{$item}} =
340: &unescape((split(/\&/,$recent{$time_hash{$item}}))[1]);
341: if ($n && ($idx++ >= $n)) {last;}
342: }
343:
344: return %return_hash;
345: }
346:
347: sub get_recent_frozen {
348: my ($area) = @_;
349: my %recent=&Apache::lonnet::dump(&recent_filename($area));
350:
351: # Create hash with all 'frozen' items
352: my %return_hash = ();
353: foreach my $item (keys(%recent)) {
354: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
355: if ($thistime eq 'always_include') {
356: $return_hash{$item} = &unescape($thisvalue);
357: }
358: }
359: return %return_hash;
360: }
361:
362:
363:
364: =pod
365:
366: =item &textbox()
367:
368: =cut
369:
370: ##############################################
371: ##############################################
372: sub textbox {
373: my ($name,$value,$size,$special) = @_;
374: $size = 40 if (! defined($size));
375: $value = &HTML::Entities::encode($value,'<>&"');
376: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
377: 'value="'.$value.'" '.$special.' />';
378: return $Str;
379: }
380:
381: ##############################################
382: ##############################################
383:
384: =pod
385:
386: =item &checkbox()
387:
388: =cut
389:
390: ##############################################
391: ##############################################
392: sub checkbox {
393: my ($name,$checked,$value) = @_;
394: my $Str = '<input type="checkbox" name="'.$name.'" ';
395: if (defined($value)) {
396: $Str .= 'value="'.$value.'"';
397: }
398: if ($checked) {
399: $Str .= ' checked="checked"';
400: }
401: $Str .= ' />';
402: return $Str;
403: }
404:
405:
406: =pod
407:
408: =item &radiobutton()
409:
410: =cut
411:
412: ##############################################
413: ##############################################
414: sub radio {
415: my ($name,$checked,$value) = @_;
416: my $Str = '<input type="radio" name="'.$name.'" ';
417: if (defined($value)) {
418: $Str .= 'value="'.$value.'"';
419: }
420: if ($checked eq $value) {
421: $Str .= ' checked="checked"';
422: }
423: $Str .= ' />';
424: return $Str;
425: }
426:
427: ##############################################
428: ##############################################
429:
430: =pod
431:
432: =item &date_setter()
433:
434: &date_setter returns html and javascript for a compact date-setting form.
435: To retrieve values from it, use &get_date_from_form.
436:
437: Inputs
438:
439: =over 4
440:
441: =item $dname
442:
443: The name to prepend to the form elements.
444: The form elements defined will be dname_year, dname_month, dname_day,
445: dname_hour, dname_min, and dname_sec.
446:
447: =item $currentvalue
448:
449: The current setting for this time parameter. A unix format time
450: (time in seconds since the beginning of Jan 1st, 1970, GMT.
451: An undefined value is taken to indicate the value is the current time
452: unless it is requested to leave it empty. See $includeempty.
453: Also, to be explicit, a value of 'now' also indicates the current time.
454:
455: =item $special
456:
457: Additional html/javascript to be associated with each element in
458: the date_setter. See lonparmset for example usage.
459:
460: =item $includeempty
461:
462: If it is set (true) and no date/time value is provided,
463: the date/time fields are left empty.
464:
465: =item $state
466:
467: Specifies the initial state of the form elements. Either 'disabled' or empty.
468: Defaults to empty, which indiciates the form elements are not disabled.
469:
470: =back
471:
472: Bugs
473:
474: The method used to restrict user input will fail in the year 2400.
475:
476: =cut
477:
478: ##############################################
479: ##############################################
480: sub date_setter {
481: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
482: $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink) = @_;
483: my $now = time;
484:
485: my $tzname;
486: my ($sec,$min,$hour,$mday,$month,$year) = ('', '', undef,''.''.'');
487: #other potentially useful values: wkday,yrday,is_daylight_savings
488:
489: if (! defined($state) || $state ne 'disabled') {
490: $state = '';
491: }
492: if (! defined($no_hh_mm_ss)) {
493: $no_hh_mm_ss = 0;
494: }
495: if ($currentvalue eq 'now') {
496: $currentvalue = $now;
497: }
498:
499: # Default value: Set empty date field to current time
500: # unless empty inclusion is requested
501: if ((!$includeempty) && (!$currentvalue)) {
502: $currentvalue = $now;
503: }
504: # Do we have a date? Split it!
505: if ($currentvalue) {
506: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue);
507:
508: #No values provided for hour, min, sec? Use default 0
509: if (($defhour) || ($defmin) || ($defsec)) {
510: $sec = ($defsec ? $defsec : 0);
511: $min = ($defmin ? $defmin : 0);
512: $hour = ($defhour ? $defhour : 0);
513: }
514: }
515: my $result = "\n<!-- $dname date setting form -->\n";
516: $result .= <<ENDJS;
517: <script type="text/javascript">
518: // <![CDATA[
519: function $dname\_checkday() {
520: var day = document.$formname.$dname\_day.value;
521: var month = document.$formname.$dname\_month.value;
522: var year = document.$formname.$dname\_year.value;
523: var valid = true;
524: if (day < 1) {
525: document.$formname.$dname\_day.value = 1;
526: }
527: if (day > 31) {
528: document.$formname.$dname\_day.value = 31;
529: }
530: if ((month == 1) || (month == 3) || (month == 5) ||
531: (month == 7) || (month == 8) || (month == 10) ||
532: (month == 12)) {
533: if (day > 31) {
534: document.$formname.$dname\_day.value = 31;
535: day = 31;
536: }
537: } else if (month == 2 ) {
538: if ((year % 4 == 0) && (year % 100 != 0)) {
539: if (day > 29) {
540: document.$formname.$dname\_day.value = 29;
541: }
542: } else if (day > 29) {
543: document.$formname.$dname\_day.value = 28;
544: }
545: } else if (day > 30) {
546: document.$formname.$dname\_day.value = 30;
547: }
548: }
549:
550: function $dname\_disable() {
551: document.$formname.$dname\_month.disabled=true;
552: document.$formname.$dname\_day.disabled=true;
553: document.$formname.$dname\_year.disabled=true;
554: document.$formname.$dname\_hour.disabled=true;
555: document.$formname.$dname\_minute.disabled=true;
556: document.$formname.$dname\_second.disabled=true;
557: }
558:
559: function $dname\_enable() {
560: document.$formname.$dname\_month.disabled=false;
561: document.$formname.$dname\_day.disabled=false;
562: document.$formname.$dname\_year.disabled=false;
563: document.$formname.$dname\_hour.disabled=false;
564: document.$formname.$dname\_minute.disabled=false;
565: document.$formname.$dname\_second.disabled=false;
566: }
567:
568: function $dname\_opencalendar() {
569: if (! document.$formname.$dname\_month.disabled) {
570: var calwin=window.open(
571: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
572: document.$formname.$dname\_month.value+"&year="+
573: document.$formname.$dname\_year.value,
574: "LONCAPAcal",
575: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
576: }
577:
578: }
579: // ]]>
580: </script>
581: ENDJS
582: $result .= ' <span class="LC_nobreak">';
583: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
584: # Month
585: my @Months = qw/January February March April May June
586: July August September October November December/;
587: # Pad @Months with a bogus value to make indexing easier
588: unshift(@Months,'If you can read this an error occurred');
589: if ($includeempty) { $monthselector.="<option value=''></option>"; }
590: for(my $m = 1;$m <=$#Months;$m++) {
591: $monthselector .= qq{ <option value="$m"};
592: $monthselector .= ' selected="selected"' if ($m-1 eq $month);
593: $monthselector .= '> '.&mt($Months[$m]).' </option>'."\n";
594: }
595: $monthselector.= ' </select>';
596: # Day
597: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
598: # Year
599: my $yearselector = qq{<input type="text" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
600: #
601: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
602: if ($includeempty) {
603: $hourselector.=qq{<option value=''></option>};
604: }
605: for (my $h = 0;$h<24;$h++) {
606: $hourselector .= qq{<option value="$h"};
607: $hourselector .= ' selected="selected"' if (defined($hour) && $hour == $h);
608: $hourselector .= ">";
609: my $timest='';
610: if ($h == 0) {
611: $timest .= "12 am";
612: } elsif($h == 12) {
613: $timest .= "12 noon";
614: } elsif($h < 12) {
615: $timest .= "$h am";
616: } else {
617: $timest .= $h-12 ." pm";
618: }
619: $timest=&mt($timest);
620: $hourselector .= $timest." </option>\n";
621: }
622: $hourselector .= " </select>\n";
623: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
624: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
625: my $cal_link;
626: if (!$nolink) {
627: $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
628: }
629: #
630: my $tzone = ' '.$tzname.' ';
631: if ($no_hh_mm_ss) {
632: $result .= &mt('[_1] [_2] [_3] ',
633: $monthselector,$dayselector,$yearselector).
634: $tzone;
635: if (!$nolink) {
636: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
637: }
638: } else {
639: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
640: $monthselector,$dayselector,$yearselector,
641: $hourselector,$minuteselector,$secondselector).
642: $tzone;
643: if (!$nolink) {
644: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
645: }
646: }
647: $result .= "</span>\n<!-- end $dname date setting form -->\n";
648: return $result;
649: }
650:
651: sub get_timedates {
652: my ($epoch) = @_;
653: my $dt = DateTime->from_epoch(epoch => $epoch)
654: ->set_time_zone(&Apache::lonlocal::gettimezone());
655: my $tzname = $dt->time_zone_short_name();
656: my $sec = $dt->second;
657: my $min = $dt->minute;
658: my $hour = $dt->hour;
659: my $mday = $dt->day;
660: my $month = $dt->month;
661: if ($month) {
662: $month --;
663: }
664: my $year = $dt->year;
665: return ($tzname,$sec,$min,$hour,$mday,$month,$year);
666: }
667:
668: sub build_url {
669: my ($base, $fields)=@_;
670: my $url;
671: $url = $base.'?';
672: foreach my $key (keys(%$fields)) {
673: $url.=&escape($key).'='.&escape($$fields{$key}).'&';
674: }
675: $url =~ s/&$//;
676: return $url;
677: }
678:
679:
680: ##############################################
681: ##############################################
682:
683: =pod
684:
685: =item &get_date_from_form()
686:
687: get_date_from_form retrieves the date specified in an &date_setter form.
688:
689: Inputs:
690:
691: =over 4
692:
693: =item $dname
694:
695: The name passed to &date_setter, which prefixes the form elements.
696:
697: =item $defaulttime
698:
699: The unix time to use as the default in case of poor inputs.
700:
701: =back
702:
703: Returns: Unix time represented in the form.
704:
705: =cut
706:
707: ##############################################
708: ##############################################
709: sub get_date_from_form {
710: my ($dname) = @_;
711: my ($sec,$min,$hour,$day,$month,$year);
712: #
713: if (defined($env{'form.'.$dname.'_second'})) {
714: my $tmpsec = $env{'form.'.$dname.'_second'};
715: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
716: $sec = $tmpsec;
717: }
718: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
719: } else {
720: $sec = 0;
721: }
722: if (defined($env{'form.'.$dname.'_minute'})) {
723: my $tmpmin = $env{'form.'.$dname.'_minute'};
724: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
725: $min = $tmpmin;
726: }
727: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
728: } else {
729: $min = 0;
730: }
731: if (defined($env{'form.'.$dname.'_hour'})) {
732: my $tmphour = $env{'form.'.$dname.'_hour'};
733: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
734: $hour = $tmphour;
735: }
736: } else {
737: $hour = 0;
738: }
739: if (defined($env{'form.'.$dname.'_day'})) {
740: my $tmpday = $env{'form.'.$dname.'_day'};
741: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
742: $day = $tmpday;
743: }
744: }
745: if (defined($env{'form.'.$dname.'_month'})) {
746: my $tmpmonth = $env{'form.'.$dname.'_month'};
747: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
748: $month = $tmpmonth;
749: }
750: }
751: if (defined($env{'form.'.$dname.'_year'})) {
752: my $tmpyear = $env{'form.'.$dname.'_year'};
753: if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
754: $year = $tmpyear;
755: }
756: }
757: if (($year<1970) || ($year>2037)) { return undef; }
758: if (defined($sec) && defined($min) && defined($hour) &&
759: defined($day) && defined($month) && defined($year)) {
760: my $timezone = &Apache::lonlocal::gettimezone();
761: my $dt = DateTime->new( year => $year,
762: month => $month,
763: day => $day,
764: hour => $hour,
765: minute => $min,
766: second => $sec,
767: time_zone => $timezone,
768: );
769: my $epoch_time = $dt->epoch;
770: if ($epoch_time ne '') {
771: return $epoch_time;
772: } else {
773: return undef;
774: }
775: } else {
776: return undef;
777: }
778: }
779:
780: ##############################################
781: ##############################################
782:
783: =pod
784:
785: =item &pjump_javascript_definition()
786:
787: Returns javascript defining the 'pjump' function, which opens up a
788: parameter setting wizard.
789:
790: =cut
791:
792: ##############################################
793: ##############################################
794: sub pjump_javascript_definition {
795: my $Str = <<END;
796: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
797: openMyModal("/adm/rat/parameter.html?type="+escape(type)
798: +"&value="+escape(value)+"&marker="+escape(marker)
799: +"&return="+escape(ret)
800: +"&call="+escape(call)+"&name="+escape(dis)
801: +"&defhour="+escape(hour)+"&defmin="+escape(min)
802: +"&defsec="+escape(sec)+"&modal=1",350,350,'no');
803: }
804: END
805: return $Str;
806: }
807:
808: ##############################################
809: ##############################################
810:
811: =pod
812:
813: =item &javascript_nothing()
814:
815: Return an appropriate null for the users browser. This is used
816: as the first arguement for window.open calls when you want a blank
817: window that you can then write to.
818:
819: =cut
820:
821: ##############################################
822: ##############################################
823: sub javascript_nothing {
824: # mozilla and other browsers work with "''", but IE on mac does not.
825: my $nothing = "''";
826: my $user_browser;
827: my $user_os;
828: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
829: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
830: if (! defined($user_browser) || ! defined($user_os)) {
831: (undef,$user_browser,undef,undef,undef,$user_os) =
832: &Apache::loncommon::decode_user_agent();
833: }
834: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
835: $nothing = "'javascript:void(0);'";
836: }
837: return $nothing;
838: }
839:
840: ##############################################
841: ##############################################
842: sub javascript_docopen {
843: my ($mimetype) = @_;
844: $mimetype ||= 'text/html';
845: # safari does not understand document.open() and loads "text/html"
846: my $nothing = "''";
847: my $user_browser;
848: my $user_os;
849: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
850: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
851: if (! defined($user_browser) || ! defined($user_os)) {
852: (undef,$user_browser,undef,undef,undef,$user_os) =
853: &Apache::loncommon::decode_user_agent();
854: }
855: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
856: $nothing = "document.clear()";
857: } else {
858: $nothing = "document.open('$mimetype','replace')";
859: }
860: return $nothing;
861: }
862:
863:
864: ##############################################
865: ##############################################
866:
867: =pod
868:
869: =item &StatusOptions()
870:
871: Returns html for a selection box which allows the user to choose the
872: enrollment status of students. The selection box name is 'Status'.
873:
874: Inputs:
875:
876: $status: the currently selected status. If undefined the value of
877: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
878: is used.
879:
880: $formname: The name of the form. If defined the onchange attribute of
881: the selection box is set to document.$formname.submit().
882:
883: $size: the size (number of lines) of the selection box.
884:
885: $onchange: javascript to use when the value is changed. Enclosed in
886: double quotes, ""s, not single quotes.
887:
888: Returns: a perl string as described.
889:
890: =cut
891:
892: ##############################################
893: ##############################################
894: sub StatusOptions {
895: my ($status, $formName,$size,$onchange,$mult)=@_;
896: $size = 1 if (!defined($size));
897: if (! defined($status)) {
898: $status = 'Active';
899: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
900: }
901:
902: my $Str = '';
903: $Str .= '<select name="Status"';
904: if (defined($mult)){
905: $Str .= ' multiple="multiple" ';
906: }
907: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
908: $Str .= ' onchange="document.'.$formName.'.submit()"';
909: }
910: if (defined($onchange)) {
911: $Str .= ' onchange="'.$onchange.'"';
912: }
913: $Str .= ' size="'.$size.'" ';
914: $Str .= '>'."\n";
915: foreach my $type (['Active', &mt('Currently Has Access')],
916: ['Future', &mt('Will Have Future Access')],
917: ['Expired', &mt('Previously Had Access')],
918: ['Any', &mt('Any Access Status')]) {
919: my ($name,$label) = @$type;
920: $Str .= '<option value="'.$name.'" ';
921: if ($status eq $name) {
922: $Str .= 'selected="selected" ';
923: }
924: $Str .= '>'.$label.'</option>'."\n";
925: }
926:
927: $Str .= '</select>'."\n";
928: }
929:
930: ########################################################
931: ########################################################
932:
933: =pod
934:
935: =item Progess Window Handling Routines
936:
937: These routines handle the creation, update, increment, and closure of
938: progress windows. The progress window reports to the user the number
939: of items completed and an estimate of the time required to complete the rest.
940:
941: =over 4
942:
943:
944: =item &Create_PrgWin()
945:
946: Writes javascript to the client to open a progress window and returns a
947: data structure used for bookkeeping.
948:
949: Inputs
950:
951: =over 4
952:
953: =item $r Apache request
954:
955: =item $number_to_do The total number of items being processed.
956:
957: =back
958:
959: Returns a hash containing the progress state data structure.
960:
961:
962: =item &Update_PrgWin()
963:
964: Updates the text in the progress indicator. Does not increment the count.
965: See &Increment_PrgWin.
966:
967: Inputs:
968:
969: =over 4
970:
971: =item $r Apache request
972:
973: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
974:
975: =item $displaystring The string to write to the status indicator
976:
977: =back
978:
979: Returns: none
980:
981:
982: =item Increment_PrgWin()
983:
984: Increment the count of items completed for the progress window by $step or 1 if no step is provided.
985:
986: Inputs:
987:
988: =over 4
989:
990: =item $r Apache request
991:
992: =item $prog_state Pointer to the data structure returned by Create_PrgWin
993:
994: =item $extraInfo A description of the items being iterated over. Typically
995: 'student'.
996:
997: =item $step (optional) counter step. Will be set to default 1 if ommited. step must be greater than 0 or empty.
998:
999: =back
1000:
1001: Returns: none
1002:
1003:
1004: =item &Close_PrgWin()
1005:
1006: Closes the progress window.
1007:
1008: Inputs:
1009:
1010: =over 4
1011:
1012: =item $r Apache request
1013:
1014: =item $prog_state Pointer to the data structure returned by Create_PrgWin
1015:
1016: =back
1017:
1018: Returns: none
1019:
1020: =back
1021:
1022: =cut
1023:
1024: ########################################################
1025: ########################################################
1026:
1027:
1028: # Create progress
1029: sub Create_PrgWin {
1030: my ($r,$number_to_do)=@_;
1031: my %prog_state;
1032: $prog_state{'done'}=0;
1033: $prog_state{'firststart'}=&Time::HiRes::time();
1034: $prog_state{'laststart'}=&Time::HiRes::time();
1035: $prog_state{'max'}=$number_to_do;
1036: &Apache::loncommon::LCprogressbar($r);
1037: return %prog_state;
1038: }
1039:
1040: # update progress
1041: sub Update_PrgWin {
1042: my ($r,$prog_state,$displayString)=@_;
1043: &Apache::loncommon::LCprogressbarUpdate($r,undef,$displayString);
1044: $$prog_state{'laststart'}=&Time::HiRes::time();
1045: }
1046:
1047: # increment progress state
1048: sub Increment_PrgWin {
1049: my ($r,$prog_state,$extraInfo,$step)=@_;
1050: $step = $step > 0 ? $step : 1;
1051: $$prog_state{'done'} += $step;
1052:
1053: # Catch (max modulo step) <> 0
1054: my $current = $$prog_state{'done'};
1055: my $last = ($$prog_state{'max'} - $current);
1056: if ($last <= 0) {
1057: $last = 1;
1058: $current = $$prog_state{'max'};
1059: }
1060:
1061: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
1062: $current * $last;
1063: $time_est = int($time_est);
1064: #
1065: my $min = int($time_est/60);
1066: my $sec = $time_est % 60;
1067:
1068: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
1069: if ($lasttime > 9) {
1070: $lasttime = int($lasttime);
1071: } elsif ($lasttime < 0.01) {
1072: $lasttime = 0;
1073: } else {
1074: $lasttime = sprintf("%3.2f",$lasttime);
1075: }
1076:
1077: $sec = 0 if ($min >= 10); # Don't show seconds if remaining time >= 10 min.
1078: $sec = 1 if ( ($min == 0) && ($sec == 0) ); # Little cheating: pretend to have 1 second remaining instead of 0 to have something to display
1079:
1080: my $timeinfo =
1081: &mt('[_1]/[_2]:'
1082: .' [quant,_3,minute,minutes,] [quant,_4,second ,seconds ,]remaining'
1083: .' ([quant,_5,second] for '.$extraInfo.')',
1084: $current,
1085: $$prog_state{'max'},
1086: $min,
1087: $sec,
1088: $lasttime);
1089: my $percent=0;
1090: if ($$prog_state{'max'}) {
1091: $percent=int(100.*$current/$$prog_state{'max'});
1092: }
1093: &Apache::loncommon::LCprogressbarUpdate($r,$percent,$timeinfo);
1094: $$prog_state{'laststart'}=&Time::HiRes::time();
1095: }
1096:
1097: # close Progress Line
1098: sub Close_PrgWin {
1099: my ($r,$prog_state)=@_;
1100: &Apache::loncommon::LCprogressbarClose($r);
1101: undef(%$prog_state);
1102: }
1103:
1104: # ------------------------------------------------------- Puts directory header
1105:
1106: sub crumbs {
1107: my ($uri,$target,$prefix,$form,$skiplast)=@_;
1108: # You cannot crumbnify uploaded or adm resources
1109: if ($uri=~/^\/*(uploaded|adm)\//) { return &mt('(Internal Course/Group Content)'); }
1110: if ($target) {
1111: $target = ' target="'.
1112: &Apache::loncommon::escape_single($target).'"';
1113: }
1114: my $output='<span class="LC_filename">';
1115: $output.=$prefix.'/';
1116: if (($env{'user.adv'}) || ($env{'user.author'})) {
1117: my $path=$prefix.'/';
1118: foreach my $dir (split('/',$uri)) {
1119: if (! $dir) { next; }
1120: $path .= $dir;
1121: if ($path eq $uri) {
1122: if ($skiplast) {
1123: $output.=$dir;
1124: last;
1125: }
1126: } else {
1127: $path.='/';
1128: }
1129: my $href_path = &HTML::Entities::encode($path,'<>&"');
1130: &Apache::loncommon::inhibit_menu_check(\$href_path);
1131: if ($form) {
1132: my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
1133: $output.=qq{<a href="$href"$target>$dir</a>/};
1134: } else {
1135: $output.=qq{<a href="$href_path"$target>$dir</a>/};
1136: }
1137: }
1138: } else {
1139: foreach my $dir (split('/',$uri)) {
1140: if (! $dir) { next; }
1141: $output.=$dir.'/';
1142: }
1143: }
1144: if ($uri !~ m|/$|) { $output=~s|/$||; }
1145: $output.='</span>';
1146:
1147:
1148: return $output;
1149: }
1150:
1151: # --------------------- A function that generates a window for the spellchecker
1152:
1153: sub spellheader {
1154: my $start_page=
1155: &Apache::loncommon::start_page('Speller Suggestions',undef,
1156: {'only_body' => 1,
1157: 'js_ready' => 1,
1158: 'bgcolor' => '#DDDDDD',
1159: 'add_entries' => {
1160: 'onload' =>
1161: 'document.forms.spellcheckform.submit()',
1162: }
1163: });
1164: my $end_page=
1165: &Apache::loncommon::end_page({'js_ready' => 1});
1166:
1167: my $nothing=&javascript_nothing();
1168: return (<<ENDCHECK);
1169: <script type="text/javascript">
1170: // <![CDATA[
1171: //<!-- BEGIN LON-CAPA Internal
1172: var checkwin;
1173:
1174: function spellcheckerwindow(string) {
1175: var esc_string = string.replace(/\"/g,'"');
1176: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1177: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1178: checkwin.document.close();
1179: }
1180: // END LON-CAPA Internal -->
1181: // ]]>
1182: </script>
1183: ENDCHECK
1184: }
1185:
1186: # ---------------------------------- Generate link to spell checker for a field
1187:
1188: sub spelllink {
1189: my ($form,$field)=@_;
1190: my $linktext=&mt('Check Spelling');
1191: return (<<ENDLINK);
1192: <a href="javascript:if (typeof(document.$form.onsubmit)!='undefined') { if (document.$form.onsubmit!=null) { document.$form.onsubmit();}};spellcheckerwindow(this.document.forms.$form.$field.value);">$linktext</a>
1193: ENDLINK
1194: }
1195:
1196: # ------------------------------------------------- Output headers for CKEditor
1197:
1198: sub htmlareaheaders {
1199: my $s="";
1200: if (&htmlareabrowser()) {
1201: $s.=(<<ENDEDITOR);
1202: <script type="text/javascript" src="/ckeditor/ckeditor.js"></script>
1203: ENDEDITOR
1204: }
1205: $s.=(<<ENDJQUERY);
1206: <script type="text/javascript" src="/adm/jQuery/js/jquery-1.6.2.min.js"></script>
1207: <script type="text/javascript" src="/adm/jQuery/js/jquery-ui-1.8.16.custom.min.js"></script>
1208: <link rel="stylesheet" type="text/css" href="/adm/jQuery/css/smoothness/jquery-ui-1.8.16.custom.css" />
1209: <script type="text/javascript" src="/adm/jpicker/js/jpicker-1.1.6.min.js" >
1210: </script>
1211: <link rel="stylesheet" type="text/css" href="/adm/jpicker/css/jPicker-1.1.6.min.css" />
1212: <script type="text/javascript" src="/adm/countdown/js/jquery.countdown.js"></script>
1213: <link rel="stylesheet" type="text/css" href="/adm/countdown/css/jquery.countdown.css" />
1214:
1215: <script type="text/javascript" src="/adm/spellchecker/js/jquery.spellchecker.js"></script>
1216: <link rel="stylesheet" type="text/css" href="/adm/spellchecker/css/spellchecker.css" />
1217:
1218: ENDJQUERY
1219: return $s;
1220: }
1221:
1222: # ----------------------------------------------------------------- Preferences
1223:
1224: # ------------------------------------------------- lang to use in html editor
1225: sub htmlarea_lang {
1226: my $lang='en';
1227: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1228: $lang=&mt('htmlarea_lang');
1229: }
1230: return $lang;
1231: }
1232:
1233: # ----------------------------------------- Script to activate only some fields
1234:
1235: sub htmlareaselectactive {
1236: my ($args) = @_;
1237: unless (&htmlareabrowser()) { return ''; }
1238: my $output='<script type="text/javascript" defer="defer">'."\n"
1239: .'// <![CDATA['."\n";
1240: my $lang = &htmlarea_lang();
1241: my $fullpage = 'false';
1242: my ($dragmath_prefix,$dragmath_helpicon,$dragmath_whitespace);
1243: if (ref($args) eq 'HASH') {
1244: if (exists($args->{'lang'})) {
1245: if ($args->{'lang'} ne '') {
1246: $lang = $args->{'lang'};
1247: }
1248: }
1249: if (exists($args->{'fullpage'})) {
1250: if ($args->{'fullpage'} eq 'true') {
1251: $fullpage = $args->{'fullpage'};
1252: }
1253: }
1254: if (exists($args->{'dragmath'})) {
1255: if ($args->{'dragmath'} ne '') {
1256: $dragmath_prefix = $args->{'dragmath'};
1257: $dragmath_helpicon=&Apache::loncommon::lonhttpdurl("/adm/help/help.png");
1258: $dragmath_whitespace=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/transparent1x1.gif");
1259: }
1260: }
1261: }
1262: $output.='
1263:
1264: function containsBlockHtml(id) {
1265: var re = $("#"+id).html().search(/(?:\<\;|\<)(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)[\s]*((?:[\/]*[\s]*(?:\>\;|\>)|(?:\>\;|\>)[\s\S]*(?:\<\;|\<)\/[\s]*\1[\s]*\(?:\>\;|\>))/im);
1266: return (re >= 0);
1267: }
1268:
1269: function startRichEditor(id) {
1270: CKEDITOR.replace(id,
1271: {
1272: customConfig: "/ckeditor/loncapaconfig.js",
1273: language : "'.$lang.'",
1274: fullPage : '.$fullpage.',
1275: }
1276: );
1277: }
1278:
1279: function destroyRichEditor(id) {
1280: CKEDITOR.instances[id].destroy();
1281: }
1282:
1283: function editorHandler(event) {
1284: var rawid = $(this).attr("id");
1285: var id = new RegExp("LC_rt_(.*)").exec(rawid)[1];
1286: event.preventDefault();
1287: var rt_enabled = $(this).hasClass("LC_enable_rt");
1288: if (rt_enabled) {
1289: startRichEditor(id);
1290: $("#LC_rt_"+id).html("<b>« Plain text</b>");
1291: $("#LC_rt_"+id).attr("title", "Disable rich text formatting and edit in plain text");
1292: $("#LC_rt_"+id).addClass("LC_disable_rt");
1293: $("#LC_rt_"+id).removeClass("LC_enable_rt");
1294: } else {
1295: destroyRichEditor(id);
1296: $("#LC_rt_"+id).html("<b>Rich formatting »</b>");
1297: $("#LC_rt_"+id).attr("title", "Enable rich text formatting (bold, italic, etc.)");
1298: $("#LC_rt_"+id).addClass("LC_enable_rt");
1299: $("#LC_rt_"+id).removeClass("LC_disable_rt");
1300: }';
1301: if ($dragmath_prefix ne '') {
1302: $output .= "\n var visible = '';
1303: if (rt_enabled) {
1304: visible = 'none';
1305: }
1306: editmath_visibility(id,visible);\n";
1307: }
1308: $output .= '
1309: }
1310: $(document).ready(function(){
1311: $(".LC_richAlwaysOn").each(function() {
1312: startRichEditor($(this).attr("id"));
1313: });
1314: $(".LC_richDetectHtml").each(function() {
1315: var id = $(this).attr("id");
1316: var rt_enabled = containsBlockHtml(id);
1317: if(rt_enabled) {
1318: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"Disable rich text formatting and edit in plain text\" class=\"LC_disable_rt\"><b>« Plain text</b></a></div>");
1319: startRichEditor(id);
1320: $("#LC_rt_"+id).click(editorHandler);
1321: }
1322: else {
1323: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"Enable rich text formatting (bold, italic, etc.)\" class=\"LC_enable_rt\"><b>Rich formatting »</b></a></div>");
1324: $("#LC_rt_"+id).click(editorHandler);
1325: }';
1326: if ($dragmath_prefix ne '') {
1327: $output .= "\n var visible = '';
1328: if (rt_enabled) {
1329: visible = 'none';
1330: }
1331: editmath_visibility(id,visible);\n";
1332: }
1333: $output .= '
1334: });
1335: $(".LC_richDefaultOn").each(function() {
1336: var id = $(this).attr("id");
1337: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"Disable rich text formatting and edit in plain text\" class=\"LC_disable_rt\"><b>« Plain text</b></a></div>");
1338: startRichEditor(id);
1339: $("#LC_rt_"+id).click(editorHandler);
1340: });
1341: $(".LC_richDefaultOff").each(function() {
1342: var id = $(this).attr("id");
1343: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"Enable rich text formatting (bold, italic, etc.)\" class=\"LC_enable_rt\"><b>Rich formatting »</b></a></div>");
1344: $("#LC_rt_"+id).click(editorHandler);
1345: });
1346: $.fn.jPicker.defaults.images.clientPath="/adm/jpicker/images/";
1347: $(".colorchooser").jPicker();
1348:
1349:
1350: });
1351: ';
1352: # Code to put a due date countdown in 'duedatecountdown' span.
1353: # This is currently located in the breadcrumb headers.
1354: # note that the dueDateLayout is internatinoalized below.
1355: # Here document is used to support the substitution into the javascript below.
1356: # ..which unforunately necessitates escaping the $'s in the javascript.
1357: # There are several times of importance
1358: #
1359: # serverDueDate - The absolute time at which the problem expires.
1360: # serverTime - The server's time when the problem finished computing.
1361: # clientTime - The client's time...as close to serverTime as possible.
1362: # The clientTime will be slightly later due to
1363: # 1. The latency between problem computation and
1364: # the first network action.
1365: # 2. The time required between the page load-start and the actual
1366: # initial javascript execution that got clientTime.
1367: # These are used as follows:
1368: # The difference between clientTime and serverTime are used to
1369: # correct for differences in clock settings between the browser's system and the
1370: # server's.
1371: #
1372: # The difference between clientTime and the time at which the ready() method
1373: # starts executing is used to estimate latencies for page load and submission.
1374: # Since this is an estimate, it is doubled. The latency estimate + one minute
1375: # is used to determine when the countdown timer turns red to warn the user
1376: # to think about submitting.
1377:
1378: my $dueDateLayout = &mt('Due in: {dn} {dl} {hnn}{sep}{mnn}{sep}{snn} [_1]',"<span id='submitearly'></span>");
1379: my $early = '- <b>'.&mt('Submit Early').'</b>';
1380: my $pastdue = '- <b>'.&mt('Past Due').'</b>';
1381: $output .= <<JAVASCRIPT;
1382:
1383: var documentReadyTime;
1384:
1385: \$(document).ready(function() {
1386: if (typeof(dueDate) != "undefined") {
1387: documentReadyTime = (new Date()).getTime();
1388: \$("#duedatecountdown").countdown({until: dueDate, compact: true,
1389: layout: "$dueDateLayout",
1390: onTick: function (periods) {
1391: var latencyEstimate = (documentReadyTime - clientTime) * 2;
1392: if(\$.countdown.periodsToSeconds(periods) < (300 + latencyEstimate)) {
1393: \$("#submitearly").html("$early");
1394: if (\$.countdown.periodsToSeconds(periods) < 1) {
1395: \$("#submitearly").html("$pastdue");
1396: }
1397: }
1398: if(\$.countdown.periodsToSeconds(periods) < (60 + latencyEstimate)) {
1399: \$(this).css("color", "red"); //Highlight last minute.
1400: }
1401: }
1402: });
1403: }
1404: });
1405:
1406: /* This code describes the spellcheck options that will be used for
1407: items with class 'spellchecked'. It is necessary for those objects'
1408: to explicitly request checking (e.g. onblur is a nice event for that).
1409: */
1410: \$(document).ready(function() {
1411: \$(".spellchecked").spellchecker({
1412: url: "/ajax/spellcheck",
1413: lang: "en",
1414: engine: "pspell",
1415: suggestionBoxPosition: "below",
1416: innerDocument: true
1417: });
1418: \$("textarea.spellchecked").spellchecker({
1419: url: "/ajax/spellcheck",
1420: lang: "en",
1421: engine: "pspell",
1422: suggestionBoxPosition: "below",
1423: innerDocument: true
1424: });
1425:
1426: });
1427:
1428:
1429: JAVASCRIPT
1430: if ($dragmath_prefix ne '') {
1431: $output .= '
1432:
1433: function editmath_visibility(id,value) {
1434:
1435: if ((id == "") || (id == null)) {
1436: return;
1437: }
1438: var mathid = "'.$dragmath_prefix.'_"+id;
1439: mathele = document.getElementById(mathid);
1440: if (mathele == null) {
1441: return;
1442: }
1443: mathele.style.display = value;
1444: var mathhelpicon = "'.$dragmath_prefix.'helpicon'.'_"+id;
1445: mathhelpiconele = document.getElementById(mathhelpicon);
1446: if (mathhelpiconele == null) {
1447: return;
1448: }
1449: if (value == "none") {
1450: mathhelpiconele.src = "'.$dragmath_whitespace.'";
1451: } else {
1452: mathhelpiconele.src = "'.$dragmath_helpicon.'";
1453: }
1454: }
1455: ';
1456:
1457: }
1458: $output.="\nwindow.status='Activated Editfields';\n"
1459: .'// ]]>'."\n"
1460: .'</script>';
1461: return $output;
1462: }
1463:
1464: # --------------------------------------------------------------------- Blocked
1465:
1466: sub htmlareablocked {
1467: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1468: return 0;
1469: }
1470:
1471: # ---------------------------------------- Browser capable of running HTMLArea?
1472:
1473: sub htmlareabrowser {
1474: return 1;
1475: }
1476:
1477: #
1478: # Should the "return to content" link be shown?
1479: #
1480:
1481: sub show_return_link {
1482:
1483: unless ($env{'request.course.id'}) { return 0; }
1484: if ($env{'request.noversionuri'}=~m{^/priv/} ||
1485: $env{'request.uri'}=~m{^/priv/}) { return 1; }
1486:
1487: if (($env{'request.noversionuri'} =~ m{^/adm/(viewclasslist|navmaps)($|\?)})
1488: || ($env{'request.noversionuri'} =~ m{^/adm/.*/aboutme($|\?)})) {
1489:
1490: return if ($env{'form.register'});
1491: }
1492: return (($env{'request.noversionuri'}=~m{^/(res|public)/} &&
1493: $env{'request.symb'} eq '')
1494: ||
1495: ($env{'request.noversionuri'}=~ m{^/cgi-bin/printout.pl})
1496: ||
1497: (($env{'request.noversionuri'}=~/^\/adm\//) &&
1498: ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
1499: ($env{'request.noversionuri'}!~
1500: m{^/adm/.*/(smppg|bulletinboard)($|\?)})
1501: ));
1502: }
1503:
1504:
1505: ##
1506: # Set the dueDate variable...note this is done in the timezone
1507: # of the browser.
1508: #
1509: # @param epoch relative time at which the problem is due.
1510: #
1511: # @return the javascript fragment to set the date:
1512: #
1513: sub set_due_date {
1514: my $dueStamp = shift;
1515: my $duems = $dueStamp * 1000; # Javascript Date object needs ms not seconds.
1516:
1517: my $now = time()*1000;
1518:
1519: # This slightly obscure bit of javascript sets the dueDate variable
1520: # to the time in the browser at which the problem was due.
1521: # The code should correct for gross differences between the server
1522: # and client's time setting
1523:
1524: return <<"END";
1525:
1526: <script type="text/javascript">
1527: //<![CDATA[
1528: var serverDueDate = $duems;
1529: var serverTime = $now;
1530: var clientTime = (new Date()).getTime();
1531: var dueDate = new Date(serverDueDate + (clientTime - serverTime));
1532:
1533: //]]>
1534: </script>
1535:
1536: END
1537: }
1538: ##
1539: # Sets the time at which the problem finished computing.
1540: # This just updates the serverTime and clientTime variables above.
1541: # Calling this in e.g. end_problem provides a better estimate of the
1542: # difference beetween the server and client time setting as
1543: # the difference contains less of the latency/problem compute time.
1544: #
1545: sub set_compute_end_time {
1546:
1547: my $now = time()*1000; # Javascript times are in ms.
1548: return <<"END";
1549:
1550: <script type="text/javascript">
1551: //<![CDATA[
1552: serverTime = $now;
1553: clientTime = (new Date()).getTime();
1554: //]]>
1555: </script>
1556:
1557: END
1558: }
1559:
1560: ############################################################
1561: ############################################################
1562:
1563: =pod
1564:
1565: =item &breadcrumbs()
1566:
1567: Compiles the previously registered breadcrumbs into an series of links.
1568: Additionally supports a 'component', which will be displayed on the
1569: right side of the breadcrumbs enclosing div (without a link).
1570: A link to help for the component will be included if one is specified.
1571:
1572: All inputs can be undef without problems.
1573:
1574: Inputs: $component (the text on the right side of the breadcrumbs trail),
1575: $component_help
1576: $menulink (boolean, controls whether to include a link to /adm/menu)
1577: $helplink (if 'nohelp' don't include the orange help link)
1578: $css_class (optional name for the class to apply to the table for CSS)
1579: $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
1580: when including the text on the right.
1581: Returns a string containing breadcrumbs for the current page.
1582:
1583: =item &clear_breadcrumbs()
1584:
1585: Clears the previously stored breadcrumbs.
1586:
1587: =item &add_breadcrumb()
1588:
1589: Pushes a breadcrumb on the stack of crumbs.
1590:
1591: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1592: are required. If present the keys 'faq' and 'bug' will be used to provide
1593: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title'
1594: and 'text' values won't be sent through &mt()
1595:
1596: returns: nothing
1597:
1598: =cut
1599:
1600: ############################################################
1601: ############################################################
1602: {
1603: my @Crumbs;
1604: my %tools = ();
1605:
1606: sub breadcrumbs {
1607: my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt,
1608: $CourseBreadcrumbs) = @_;
1609: #
1610: $css_class ||= 'LC_breadcrumbs';
1611:
1612: # Make the faq and bug data cascade
1613: my $faq = '';
1614: my $bug = '';
1615: my $help = '';
1616: # Crumb Symbol
1617: my $crumbsymbol = '»';
1618: # The last breadcrumb does not have a link, so handle it separately.
1619: my $last = pop(@Crumbs);
1620: #
1621: # The first one should be the course or a menu link
1622: if (!defined($menulink)) { $menulink=1; }
1623: if ($menulink) {
1624: my $description = 'Menu';
1625: my $no_mt_descr = 0;
1626: if ((exists($env{'request.course.id'})) &&
1627: ($env{'request.course.id'} ne '') &&
1628: ($env{'course.'.$env{'request.course.id'}.'.description'} ne '')) {
1629: $description =
1630: $env{'course.'.$env{'request.course.id'}.'.description'};
1631: $no_mt_descr = 1;
1632: }
1633: $menulink = { href =>'/adm/menu',
1634: title =>'Go to main menu',
1635: target =>'_top',
1636: text =>$description,
1637: no_mt =>$no_mt_descr, };
1638: if($last) {
1639: #$last set, so we have some crumbs
1640: unshift(@Crumbs,$menulink);
1641: } else {
1642: #only menulink crumb present
1643: $last = $menulink;
1644: }
1645: }
1646: my $links;
1647: if ((&show_return_link) && (!$CourseBreadcrumbs)) {
1648: my $alttext = &mt('Go Back');
1649: $links=&htmltag( 'a','<img src="/res/adm/pages/tolastloc.png" alt="'.$alttext.'" class="LC_icon" />',
1650: { href => '/adm/flip?postdata=return:',
1651: title => &mt('Back to most recent content resource'),
1652: class => 'LC_menubuttons_link',
1653: });
1654: $links=&htmltag('li',$links);
1655: }
1656: $links.= join "",
1657: map {
1658: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1659: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1660: $help = $_->{'help'} if (exists($_->{'help'}));
1661:
1662: my $result = $_->{no_mt} ? $_->{text} : &mt($_->{text});
1663:
1664: if ($_->{href}){
1665: $result = &htmltag( 'a', $result,
1666: { href => $_->{href},
1667: title => $_->{no_mt} ? $_->{title} : &mt($_->{title}),
1668: target => $_->{target}, });
1669: }
1670:
1671: $result = &htmltag( 'li', "$result $crumbsymbol");
1672: } @Crumbs;
1673:
1674: #should the last Element be translated?
1675:
1676: my $lasttext = $last->{'no_mt'} ? $last->{'text'}
1677: : mt( $last->{'text'} );
1678:
1679: # last breadcrumb is the first order heading of a page
1680: # for course breadcrumbs it's just bold
1681:
1682: $links .= &htmltag( 'li', htmltag($CourseBreadcrumbs ? 'b' : 'h1',
1683: $lasttext), {title => $lasttext});
1684:
1685: my $icons = '';
1686: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1687: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1688: $help = $last->{'help'} if (exists($last->{'help'}));
1689: $component_help=($component_help?$component_help:$help);
1690: # if ($faq ne '') {
1691: # $icons .= &Apache::loncommon::help_open_faq($faq);
1692: # }
1693: # if ($bug ne '') {
1694: # $icons .= &Apache::loncommon::help_open_bug($bug);
1695: # }
1696: if ($faq ne '' || $component_help ne '' || $bug ne '') {
1697: $icons .= &Apache::loncommon::help_open_menu($component,
1698: $component_help,
1699: $faq,$bug);
1700: }
1701: #
1702:
1703:
1704:
1705: unless ($CourseBreadcrumbs) {
1706: $links = &htmltag('ol', $links, { id => "LC_MenuBreadcrumbs" });
1707: } else {
1708: $links = &htmltag('ul', $links, { class => "LC_CourseBreadcrumbs" });
1709: }
1710:
1711:
1712: if ($component) {
1713: $links = &htmltag('span',
1714: ( $no_mt ? $component : mt($component) ).
1715: ( $icons ? $icons : '' ),
1716: { class => 'LC_breadcrumbs_component' } )
1717: .$links
1718: ;
1719: }
1720:
1721: &render_tools(\$links);
1722: $links = &htmltag('div', $links,
1723: { id => "LC_breadcrumbs" }) unless ($CourseBreadcrumbs) ;
1724: &render_advtools(\$links);
1725:
1726: # Return the @Crumbs stack to what we started with
1727: push(@Crumbs,$last);
1728: shift(@Crumbs);
1729:
1730:
1731: # Return the breadcrumb's line
1732:
1733:
1734:
1735: return "$links";
1736: }
1737:
1738: sub clear_breadcrumbs {
1739: undef(@Crumbs);
1740: undef(%tools);
1741: }
1742:
1743: sub add_breadcrumb {
1744: push(@Crumbs,@_);
1745: }
1746:
1747: =item &add_breadcrumb_tool($category, $html)
1748:
1749: Adds $html to $category of the breadcrumb toolbar container.
1750:
1751: $html is usually a link to a page that invokes a function on the currently
1752: displayed data (e.g. print when viewing a problem)
1753:
1754: Currently there are 3 possible values for $category:
1755:
1756: =over
1757:
1758: =item navigation
1759: left of breadcrumbs line
1760:
1761: =item tools
1762: remaining items in right of breadcrumbs line
1763:
1764: =item advtools
1765: advanced tools shown in a separate box below breadcrumbs line
1766:
1767: =back
1768:
1769: returns: nothing
1770:
1771: =cut
1772:
1773: sub add_breadcrumb_tool {
1774: my ($category, @html) = @_;
1775: return unless @html;
1776: if (!keys(%tools)) {
1777: %tools = ( navigation => [], tools => [], advtools => []);
1778: }
1779:
1780: #this cleans data received from lonmenu::innerregister
1781: @html = grep {defined $_ && $_ ne ''} @html;
1782: for (@html) {
1783: s/align="(right|left)"//;
1784: # s/<span.*?\/span>// if $category ne 'advtools';
1785: }
1786:
1787: push @{$tools{$category}}, @html;
1788: }
1789:
1790: =item &clear_breadcrumb_tools()
1791:
1792: Clears the breadcrumb toolbar container.
1793:
1794: returns: nothing
1795:
1796: =cut
1797:
1798: sub clear_breadcrumb_tools {
1799: undef(%tools);
1800: }
1801:
1802: =item &render_tools(\$breadcrumbs)
1803:
1804: Creates html for breadcrumb tools (categories navigation and tools) and inserts
1805: \$breadcrumbs at the correct position.
1806:
1807: input: \$breadcrumbs - a reference to the string containing prepared
1808: breadcrumbs.
1809:
1810: returns: nothing
1811:
1812: =cut
1813:
1814: #TODO might split this in separate functions for each category
1815: sub render_tools {
1816: my ($breadcrumbs) = @_;
1817: return unless (keys(%tools));
1818:
1819: my $navigation = list_from_array($tools{navigation},
1820: { listattr => { class=>"LC_breadcrumb_tools_navigation" } });
1821: my $tools = list_from_array($tools{tools},
1822: { listattr => { class=>"LC_breadcrumb_tools_tools" } });
1823: $$breadcrumbs = list_from_array([$navigation, $tools, $$breadcrumbs],
1824: { listattr => { class=>'LC_breadcrumb_tools_outerlist' } });
1825: }
1826:
1827: =pod
1828:
1829: =item &render_advtools(\$breadcrumbs)
1830:
1831: Creates html for advanced tools (category advtools) and inserts \$breadcrumbs
1832: at the correct position.
1833:
1834: input: \$breadcrumbs - a reference to the string containing prepared
1835: breadcrumbs (after render_tools call).
1836:
1837: returns: nothing
1838:
1839: =cut
1840:
1841: sub render_advtools {
1842: my ($breadcrumbs) = @_;
1843: return unless (defined $tools{'advtools'})
1844: and (scalar(@{$tools{'advtools'}}) > 0);
1845:
1846: $$breadcrumbs .= Apache::loncommon::head_subbox(
1847: funclist_from_array($tools{'advtools'}) );
1848: }
1849:
1850: } # End of scope for @Crumbs
1851:
1852: ############################################################
1853: ############################################################
1854:
1855: # Nested table routines.
1856: #
1857: # Routines to display form items in a multi-row table with 2 columns.
1858: # Uses nested tables to divide form elements into segments.
1859: # For examples of use see loncom/interface/lonnotify.pm
1860: #
1861: # Can be used in following order: ...
1862: # &start_pick_box()
1863: # row1
1864: # row2
1865: # row3 ... etc.
1866: # &submit_row()
1867: # &end_pick_box()
1868: #
1869: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1870: # &status_select_row and &email_default_row
1871: #
1872: # Can also be used in following order:
1873: #
1874: # &start_pick_box()
1875: # &row_title()
1876: # &row_closure()
1877: # &row_title()
1878: # &row_closure() ... etc.
1879: # &submit_row()
1880: # &end_pick_box()
1881: #
1882: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1883: # as this routine adds a button for form submission.
1884: # &submit_row() does not require a &row_closure after it.
1885: #
1886: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1887: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1888: #
1889: # &row_title() adds a title in the left column for each segment.
1890: # &row_closure() closes a row with a 1-pixel wide black line.
1891: #
1892: # &role_select_row() provides a select box from which to choose 1 or more roles
1893: # &course_select_row provides ways of picking groups of courses
1894: # radio buttons: all, by category or by picking from a course picker pop-up
1895: # note: by category option is only displayed if a domain has implemented
1896: # selection by year, semester, department, number etc.
1897: #
1898: # &status_select_row() provides a select box from which to choose 1 or more
1899: # access types (current access, prior access, and future access)
1900: #
1901: # &email_default_row() provides text boxes for default e-mail suffixes for
1902: # different authentication types in a domain.
1903: #
1904: # &row_title() and &row_closure() are called internally by the &*_select_row
1905: # routines, but can also be called directly to start and end rows which have
1906: # needs that are not accommodated by the *_select_row() routines.
1907:
1908: { # Start: row_count block for pick_box
1909: my @row_count;
1910:
1911: sub start_pick_box {
1912: my ($css_class,$id) = @_;
1913: if (defined($css_class)) {
1914: $css_class = 'class="'.$css_class.'"';
1915: } else {
1916: $css_class= 'class="LC_pick_box"';
1917: }
1918: my $table_id;
1919: if (defined($id)) {
1920: $table_id = ' id="'.$id.'"';
1921: }
1922: unshift(@row_count,0);
1923: my $output = <<"END";
1924: <table $css_class $table_id>
1925: END
1926: return $output;
1927: }
1928:
1929: sub end_pick_box {
1930: shift(@row_count);
1931: my $output = <<"END";
1932: </table>
1933: END
1934: return $output;
1935: }
1936:
1937: sub row_headline {
1938: my $output = <<"END";
1939: <tr><td colspan="2">
1940: END
1941: return $output;
1942: }
1943:
1944: sub row_title {
1945: my ($title,$css_title_class,$css_value_class, $css_value_furtherAttributes) = @_;
1946: $row_count[0]++;
1947: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
1948: $css_title_class ||= 'LC_pick_box_title';
1949: $css_title_class = 'class="'.$css_title_class.'"';
1950:
1951: $css_value_class ||= 'LC_pick_box_value';
1952:
1953: if ($title ne '') {
1954: $title .= ':';
1955: }
1956: my $output = <<"ENDONE";
1957: <tr class="LC_pick_box_row" $css_value_furtherAttributes>
1958: <td $css_title_class>
1959: $title
1960: </td>
1961: <td class="$css_value_class $css_class">
1962: ENDONE
1963: return $output;
1964: }
1965:
1966: sub row_closure {
1967: my ($no_separator) =@_;
1968: my $output = <<"ENDTWO";
1969: </td>
1970: </tr>
1971: ENDTWO
1972: if (!$no_separator) {
1973: $output .= <<"ENDTWO";
1974: <tr>
1975: <td colspan="2" class="LC_pick_box_separator">
1976: </td>
1977: </tr>
1978: ENDTWO
1979: }
1980: return $output;
1981: }
1982:
1983: } # End: row_count block for pick_box
1984:
1985: sub role_select_row {
1986: my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
1987: my $crstype = 'Course';
1988: if ($cdom ne '' && $cnum ne '') {
1989: $crstype = &Apache::loncommon::course_type($cdom.'_'.$cnum);
1990: }
1991: my $output;
1992: if (defined($title)) {
1993: $output = &row_title($title,$css_class);
1994: }
1995: $output .= qq|
1996: <select name="roles" multiple="multiple">\n|;
1997: foreach my $role (@$roles) {
1998: my $plrole;
1999: if ($role eq 'ow') {
2000: $plrole = &mt('Course Owner');
2001: } elsif ($role eq 'cr') {
2002: if ($show_separate_custom) {
2003: if ($cdom ne '' && $cnum ne '') {
2004: my %course_customroles = &course_custom_roles($cdom,$cnum);
2005: foreach my $crrole (sort(keys(%course_customroles))) {
2006: my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
2007: $output .= ' <option value="'.$crrole.'">'.$plcrrole.
2008: '</option>';
2009: }
2010: }
2011: } else {
2012: $plrole = &mt('Custom Role');
2013: }
2014: } else {
2015: $plrole=&Apache::lonnet::plaintext($role,$crstype);
2016: }
2017: if (($role ne 'cr') || (!$show_separate_custom)) {
2018: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
2019: }
2020: }
2021: $output .= qq| </select>\n|;
2022: if (defined($title)) {
2023: $output .= &row_closure();
2024: }
2025: return $output;
2026: }
2027:
2028: sub course_select_row {
2029: my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
2030: $css_class,$crstype,$standardnames) = @_;
2031: my $output = &row_title($title,$css_class);
2032: $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames);
2033: $output .= &row_closure();
2034: return $output;
2035: }
2036:
2037: sub course_selection {
2038: my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames) = @_;
2039: my $output = qq|
2040: <script type="text/javascript">
2041: // <![CDATA[
2042: function coursePick (formname) {
2043: for (var i=0; i<formname.coursepick.length; i++) {
2044: if (formname.coursepick[i].value == 'category') {
2045: courseSet('');
2046: }
2047: if (!formname.coursepick[i].checked) {
2048: if (formname.coursepick[i].value == 'specific') {
2049: formname.coursetotal.value = 0;
2050: formname.courselist = '';
2051: }
2052: }
2053: }
2054: }
2055: function setPick (formname) {
2056: for (var i=0; i<formname.coursepick.length; i++) {
2057: if (formname.coursepick[i].value == 'category') {
2058: formname.coursepick[i].checked = true;
2059: }
2060: formname.coursetotal.value = 0;
2061: formname.courselist = '';
2062: }
2063: }
2064: // ]]>
2065: </script>
2066: |;
2067:
2068: my ($allcrs,$pickspec);
2069: if ($crstype eq 'Community') {
2070: $allcrs = &mt('All communities');
2071: $pickspec = &mt('Pick specific communities:');
2072: } else {
2073: $allcrs = &mt('All courses');
2074: $pickspec = &mt('Pick specific course(s):');
2075: }
2076:
2077: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
2078: ($formname,'pickcourse','pickdomain','coursedesc','',1,$crstype).'</b>';
2079: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.$allcrs.'<br />';
2080: if ($totcodes > 0) {
2081: my $numtitles = @$codetitles;
2082: if ($numtitles > 0) {
2083: $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 />';
2084: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
2085: '<select name="'.$standardnames->[0].
2086: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
2087: ' <option value="-1" />Select'."\n";
2088: my @items = ();
2089: my @longitems = ();
2090: if ($$idlist{$$codetitles[0]} =~ /","/) {
2091: @items = split(/","/,$$idlist{$$codetitles[0]});
2092: } else {
2093: $items[0] = $$idlist{$$codetitles[0]};
2094: }
2095: if (defined($$idlist_titles{$$codetitles[0]})) {
2096: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
2097: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
2098: } else {
2099: $longitems[0] = $$idlist_titles{$$codetitles[0]};
2100: }
2101: for (my $i=0; $i<@longitems; $i++) {
2102: if ($longitems[$i] eq '') {
2103: $longitems[$i] = $items[$i];
2104: }
2105: }
2106: } else {
2107: @longitems = @items;
2108: }
2109: for (my $i=0; $i<@items; $i++) {
2110: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
2111: }
2112: $output .= '</select></td>';
2113: for (my $i=1; $i<$numtitles; $i++) {
2114: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
2115: '<select name="'.$standardnames->[$i].
2116: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
2117: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
2118: '</select>'."\n".
2119: '</td>';
2120: }
2121: $output .= '</tr></table><br />';
2122: }
2123: }
2124: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."','dccourse','dcdomain','coursedesc','','1','$crstype'".')" />'.$pickspec.' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br />'."\n";
2125: return $output;
2126: }
2127:
2128: sub status_select_row {
2129: my ($types,$title,$css_class) = @_;
2130: my $output;
2131: if (defined($title)) {
2132: $output = &row_title($title,$css_class,'LC_pick_box_select');
2133: }
2134: $output .= qq|
2135: <select name="types" multiple="multiple">\n|;
2136: foreach my $status_type (sort(keys(%{$types}))) {
2137: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
2138: }
2139: $output .= qq| </select>\n|;
2140: if (defined($title)) {
2141: $output .= &row_closure();
2142: }
2143: return $output;
2144: }
2145:
2146: sub email_default_row {
2147: my ($authtypes,$title,$descrip,$css_class) = @_;
2148: my $output = &row_title($title,$css_class);
2149: $output .= $descrip.
2150: &Apache::loncommon::start_data_table().
2151: &Apache::loncommon::start_data_table_header_row().
2152: '<th>'.&mt('Authentication Method').'</th>'.
2153: '<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
2154: &Apache::loncommon::end_data_table_header_row();
2155: my $rownum = 0;
2156: foreach my $auth (sort(keys(%{$authtypes}))) {
2157: my ($userentry,$size);
2158: if ($auth =~ /^krb/) {
2159: $userentry = '';
2160: $size = 25;
2161: } else {
2162: $userentry = 'username@';
2163: $size = 15;
2164: }
2165: $output .= &Apache::loncommon::start_data_table_row().
2166: '<td> '.$$authtypes{$auth}.'</td>'.
2167: '<td align="right">'.$userentry.
2168: '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
2169: &Apache::loncommon::end_data_table_row();
2170: }
2171: $output .= &Apache::loncommon::end_data_table();
2172: $output .= &row_closure();
2173: return $output;
2174: }
2175:
2176:
2177: sub submit_row {
2178: my ($title,$cmd,$submit_text,$css_class) = @_;
2179: my $output = &row_title($title,$css_class,'LC_pick_box_submit');
2180: $output .= qq|
2181: <br />
2182: <input type="hidden" name="command" value="$cmd" />
2183: <input type="submit" value="$submit_text"/>
2184: <br /><br />
2185: \n|;
2186: return $output;
2187: }
2188:
2189: sub course_custom_roles {
2190: my ($cdom,$cnum) = @_;
2191: my %returnhash=();
2192: my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
2193: foreach my $person (sort(keys(%coursepersonnel))) {
2194: my ($role) = ($person =~ /^([^:]+):/);
2195: my ($end,$start) = split(/:/,$coursepersonnel{$person});
2196: if ($end == -1 && $start == -1) {
2197: next;
2198: }
2199: if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
2200: $returnhash{$role} ++;
2201: }
2202: }
2203: return %returnhash;
2204: }
2205:
2206:
2207: sub resource_info_box {
2208: my ($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp)=@_;
2209: my $return='';
2210: if ($stuvcurrent ne '') {
2211: $return = '<div class="LC_left_float">';
2212: }
2213: if ($symb) {
2214: $return.=&Apache::loncommon::start_data_table();
2215: my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symb);
2216: my $folder=&Apache::lonnet::gettitle($map);
2217: $return.=&Apache::loncommon::start_data_table_row().
2218: '<th align="left">'.&mt('Folder:').'</th><td>'.$folder.'</td>'.
2219: &Apache::loncommon::end_data_table_row();
2220: unless ($onlyfolderflag) {
2221: $return.=&Apache::loncommon::start_data_table_row().
2222: '<th align="left">'.&mt('Resource:').'</th><td>'.&Apache::lonnet::gettitle($symb).'</td>'.
2223: &Apache::loncommon::end_data_table_row();
2224: }
2225: if ($stuvcurrent ne '') {
2226: $return .= &Apache::loncommon::start_data_table_row().
2227: '<th align="left">'.&mt("Student's current version:").'</th><td>'.$stuvcurrent.'</td>'.
2228: &Apache::loncommon::end_data_table_row();
2229: }
2230: if ($stuvdisp ne '') {
2231: $return .= &Apache::loncommon::start_data_table_row().
2232: '<th align="left">'.&mt("Student's version displayed:").'</th><td>'.$stuvdisp.'</td>'.
2233: &Apache::loncommon::end_data_table_row();
2234: }
2235: $return.=&Apache::loncommon::end_data_table();
2236: } else {
2237: $return='<p><span class="LC_error">'.&mt('No context provided.').'</span></p>';
2238: }
2239: if ($stuvcurrent ne '') {
2240: $return .= '</div>';
2241: }
2242: return $return;
2243: }
2244:
2245: ##############################################
2246: ##############################################
2247:
2248: # topic_bar
2249: #
2250: # Generates a div containing an (optional) number with a white background followed by a
2251: # title with a background color defined in the corresponding CSS: LC_topic_bar
2252: # Inputs:
2253: # 1. number to display.
2254: # If input for number is empty only the title will be displayed.
2255: # 2. title text to display.
2256: # 3. optional id for the <div>
2257: # Outputs - a scalar containing html mark-up for the div.
2258:
2259: sub topic_bar {
2260: my ($num,$title,$id) = @_;
2261: my $number = '';
2262: if ($num ne '') {
2263: $number = '<span>'.$num.'</span>';
2264: }
2265: if ($id ne '') {
2266: $id = 'id="'.$id.'"';
2267: }
2268: return '<div class="LC_topic_bar" '.$id.'>'.$number.$title.'</div>';
2269: }
2270:
2271: ##############################################
2272: ##############################################
2273: # echo_form_input
2274: #
2275: # Generates html markup to add form elements from the referrer page
2276: # as hidden form elements (values encoded) in the new page.
2277: #
2278: # Intended to support two types of use
2279: # (a) to allow backing up to earlier pages in a multi-page
2280: # form submission process using a breadcrumb trail.
2281: #
2282: # (b) to allow the current page to be reloaded with form elements
2283: # set on previous page to remain unchanged. An example would
2284: # be where the a page containing a dynamically-built table of data is
2285: # is to be redisplayed, with only the sort order of the data changed.
2286: #
2287: # Inputs:
2288: # 1. Reference to array of form elements in the submitted form on
2289: # the referrer page which are to be excluded from the echoed elements.
2290: #
2291: # 2. Reference to array of regular expressions, which if matched in the
2292: # name of the form element n the referrer page will be omitted from echo.
2293: #
2294: # Outputs: A scalar containing the html markup for the echoed form
2295: # elements (all as hidden elements, with values encoded).
2296:
2297:
2298: sub echo_form_input {
2299: my ($excluded,$regexps) = @_;
2300: my $output = '';
2301: foreach my $key (keys(%env)) {
2302: if ($key =~ /^form\.(.+)$/) {
2303: my $name = $1;
2304: my $match = 0;
2305: if (ref($excluded) eq 'ARRAY') {
2306: next if (grep(/^\Q$name\E$/,@{$excluded}));
2307: }
2308: if (ref($regexps) eq 'ARRAY') {
2309: if (@{$regexps} > 0) {
2310: foreach my $regexp (@{$regexps}) {
2311: if ($name =~ /$regexp/) {
2312: $match = 1;
2313: last;
2314: }
2315: }
2316: }
2317: }
2318: next if ($match);
2319: if (ref($env{$key}) eq 'ARRAY') {
2320: foreach my $value (@{$env{$key}}) {
2321: $value = &HTML::Entities::encode($value,'<>&"');
2322: $output .= '<input type="hidden" name="'.$name.
2323: '" value="'.$value.'" />'."\n";
2324: }
2325: } else {
2326: my $value = &HTML::Entities::encode($env{$key},'<>&"');
2327: $output .= '<input type="hidden" name="'.$name.
2328: '" value="'.$value.'" />'."\n";
2329: }
2330: }
2331: }
2332: return $output;
2333: }
2334:
2335: ##############################################
2336: ##############################################
2337: # set_form_elements
2338: #
2339: # Generates javascript to set form elements to values based on
2340: # corresponding values for the same form elements when the page was
2341: # previously submitted.
2342: #
2343: # Last submission values are read from hidden form elements in referring
2344: # page which have the same name, i.e., generated by &echo_form_input().
2345: #
2346: # Intended to be called by onload event.
2347: #
2348: # Inputs:
2349: # (a) Reference to hash of echoed form elements to be set.
2350: #
2351: # In the hash, keys are the form element names, and the values are the
2352: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
2353: # hidden).
2354: #
2355: # (b) Optional reference to hash of stored elements to be set.
2356: #
2357: # If the page being displayed is a page which permits modification of
2358: # previously stored data, e.g., the first page in a multi-page submission,
2359: # then if stored is supplied, form elements will be set to the last stored
2360: # values. If user supplied values are also available for the same elements
2361: # these will replace the stored values.
2362: #
2363: # Output:
2364: #
2365: # javascript function - set_form_elements() which sets form elements,
2366: # expects an argument: formname - the name of the form according to
2367: # the DOM, e.g., document.compose
2368:
2369: sub set_form_elements {
2370: my ($elements,$stored) = @_;
2371: my %values;
2372: my $output .= 'function setFormElements(courseForm) {
2373: ';
2374: if (defined($stored)) {
2375: foreach my $name (keys(%{$stored})) {
2376: if (exists($$elements{$name})) {
2377: if (ref($$stored{$name}) eq 'ARRAY') {
2378: $values{$name} = $$stored{$name};
2379: } else {
2380: @{$values{$name}} = ($$stored{$name});
2381: }
2382: }
2383: }
2384: }
2385:
2386: foreach my $key (keys(%env)) {
2387: if ($key =~ /^form\.(.+)$/) {
2388: my $name = $1;
2389: if (exists($$elements{$name})) {
2390: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
2391: }
2392: }
2393: }
2394:
2395: foreach my $name (keys(%values)) {
2396: for (my $i=0; $i<@{$values{$name}}; $i++) {
2397: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
2398: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
2399: $values{$name}[$i] =~ s/"/\\"/g;
2400: }
2401: if (($$elements{$name} eq 'text') || ($$elements{$name} eq 'hidden')) {
2402: my $numvalues = @{$values{$name}};
2403: if ($numvalues > 1) {
2404: my $valuestring = join('","',@{$values{$name}});
2405: $output .= qq|
2406: var textvalues = new Array ("$valuestring");
2407: var total = courseForm.elements['$name'].length;
2408: if (total > $numvalues) {
2409: total = $numvalues;
2410: }
2411: for (var i=0; i<total; i++) {
2412: courseForm.elements['$name']\[i].value = textvalues[i];
2413: }
2414: |;
2415: } else {
2416: $output .= qq|
2417: courseForm.elements['$name'].value = "$values{$name}[0]";
2418: |;
2419: }
2420: } else {
2421: $output .= qq|
2422: var elementLength = courseForm.elements['$name'].length;
2423: if (elementLength==undefined) {
2424: |;
2425: foreach my $value (@{$values{$name}}) {
2426: if ($$elements{$name} eq 'selectbox') {
2427: $output .= qq|
2428: if (courseForm.elements['$name'].options[0].value == "$value") {
2429: courseForm.elements['$name'].options[0].selected = true;
2430: }|;
2431: } elsif (($$elements{$name} eq 'radio') ||
2432: ($$elements{$name} eq 'checkbox')) {
2433: $output .= qq|
2434: if (courseForm.elements['$name'].value == "$value") {
2435: courseForm.elements['$name'].checked = true;
2436: } else {
2437: courseForm.elements['$name'].checked = false;
2438: }|;
2439: }
2440: }
2441: $output .= qq|
2442: }
2443: else {
2444: for (var i=0; i<courseForm.elements['$name'].length; i++) {
2445: |;
2446: if ($$elements{$name} eq 'selectbox') {
2447: $output .= qq|
2448: courseForm.elements['$name'].options[i].selected = false;|;
2449: } elsif (($$elements{$name} eq 'radio') ||
2450: ($$elements{$name} eq 'checkbox')) {
2451: $output .= qq|
2452: courseForm.elements['$name']\[i].checked = false;|;
2453: }
2454: $output .= qq|
2455: }
2456: for (var j=0; j<courseForm.elements['$name'].length; j++) {
2457: |;
2458: foreach my $value (@{$values{$name}}) {
2459: if ($$elements{$name} eq 'selectbox') {
2460: $output .= qq|
2461: if (courseForm.elements['$name'].options[j].value == "$value") {
2462: courseForm.elements['$name'].options[j].selected = true;
2463: }|;
2464: } elsif (($$elements{$name} eq 'radio') ||
2465: ($$elements{$name} eq 'checkbox')) {
2466: $output .= qq|
2467: if (courseForm.elements['$name']\[j].value == "$value") {
2468: courseForm.elements['$name']\[j].checked = true;
2469: }|;
2470: }
2471: }
2472: $output .= qq|
2473: }
2474: }
2475: |;
2476: }
2477: }
2478: $output .= "
2479: return;
2480: }\n";
2481: return $output;
2482: }
2483:
2484: ##############################################
2485: ##############################################
2486:
2487: sub file_submissionchk_js {
2488: my ($turninpaths,$multiples) = @_;
2489: my $overwritewarn = &mt('File(s) you uploaded for your submission will overwrite existing file(s) submitted for this item').'\\n'.
2490: &mt('Continue submission and overwrite the file(s)?');
2491: my $delfilewarn = &mt('You have indicated you wish to remove some files previously included in your submission.').'\\n'.
2492: &mt('Continue submission with these files removed?');
2493: my ($turninpathtext,$multtext,$arrayindexofjs);
2494: if (ref($turninpaths) eq 'HASH') {
2495: foreach my $key (sort(keys(%{$turninpaths}))) {
2496: $turninpathtext .= " if (prefix == '$key') {\n".
2497: " return '$turninpaths->{$key}';\n".
2498: " }\n";
2499: }
2500: }
2501: $turninpathtext .= " return '';\n";
2502: if (ref($multiples) eq 'HASH') {
2503: foreach my $key (sort(keys(%{$multiples}))) {
2504: $multtext .= " if (prefix == '$key') {\n".
2505: " return '$multiples->{$key}';\n".
2506: " }\n";
2507: }
2508: }
2509: $multtext .= " return '';\n";
2510:
2511: $arrayindexofjs = &Apache::loncommon::javascript_array_indexof();
2512: return <<"ENDSCRIPT";
2513: <script type="text/javascript">
2514: // <![CDATA[
2515:
2516: function file_submission_check(formname,path,multiresp) {
2517: var elemnum = formname.elements.length;
2518: if (elemnum == 0) {
2519: return true;
2520: }
2521: var alloverwrites = [];
2522: var alldelconfirm = [];
2523: var result = [];
2524: var submitter;
2525: var subprefix;
2526: var allsub = getIndexByName(formname,'all_submit');
2527: if (allsub == -1) {
2528: var idx = getIndexByName(formname,'submitted');
2529: if (idx != -1) {
2530: var subval = String(formname.elements[idx].value);
2531: submitter = subval.replace(/^part_/,'');
2532: result = overwritten_check(formname,path,multiresp,submitter);
2533: alloverwrites.push.apply(alloverwrites,result['overwrite']);
2534: alldelconfirm.push.apply(alldelconfirm,result['delete']);
2535: }
2536: } else {
2537: if (formname.elements[allsub].type == 'submit') {
2538: var partsub = /^\\d+\\.\\d+_submit_.+\$/;
2539: var allprefixes = [];
2540: var allparts = [];
2541: for (var i=0; i<formname.elements.length; i++) {
2542: if (formname.elements[i].type == 'submit') {
2543: var elemname = formname.elements[i].name;
2544: var subname = String(elemname);
2545: var savesub = String(elemname);
2546: if (partsub.test(subname)) {
2547: var prefix = subname.replace(/_submit_.+\$/,'');
2548: if (allprefixes.indexOf(prefix) == -1) {
2549: allprefixes.push(prefix);
2550: allparts[prefix] = [];
2551: }
2552: var part = savesub.replace(/^\\d+\\.\\d+_submit_/,'');
2553: allparts[prefix].push(part);
2554: }
2555: }
2556: }
2557: for (var k=0; k<allprefixes.length; k++) {
2558: var idx = getIndexByName(formname,allprefixes[k]+'_submitted');
2559: if (idx > -1) {
2560: if (formname.elements[idx].value != 'yes') {
2561: submitterval = formname.elements[idx].value;
2562: submitter = submitterval.replace(/^part_/,'');
2563: subprefix = allprefixes[k];
2564: result = overwritten_check(formname,path,multiresp,submitter,subprefix);
2565: alloverwrites.push.apply(alloverwrites,result['overwrite']);
2566: alldelconfirm.push.apply(alldelconfirm,result['delete']);
2567: break;
2568: }
2569: }
2570: }
2571: if (submitter == '' || submitter == undefined) {
2572: for (var m=0; m<allprefixes.length; m++) {
2573: for (var n=0; n<allparts[allprefixes[m]].length; n++) {
2574: var result = overwritten_check(formname,path,multiresp,allparts[allprefixes[m]][n],allprefixes[m]);
2575: alloverwrites.push.apply(alloverwrites,result['overwrite']);
2576: alldelconfirm.push.apply(alldelconfirm,result['delete']);
2577: }
2578: }
2579: }
2580: }
2581: }
2582: if (alloverwrites.length > 0) {
2583: if (!confirm("$overwritewarn")) {
2584: for (var n=0; n<alloverwrites.length; n++) {
2585: formname.elements[alloverwrites[n]].value = "";
2586: }
2587: return false;
2588: }
2589: }
2590: if (alldelconfirm.length > 0) {
2591: if (!confirm("$delfilewarn")) {
2592: for (var p=0; p<alldelconfirm.length; p++) {
2593: formname.elements[alldelconfirm[p]].checked = false;
2594: }
2595: return false;
2596: }
2597: }
2598: return true;
2599: }
2600:
2601: function getIndexByName(formname,item) {
2602: for (var i=0;i<formname.elements.length;i++) {
2603: if (formname.elements[i].name == item) {
2604: return i;
2605: }
2606: }
2607: return -1;
2608: }
2609:
2610: function overwritten_check(formname,path,multiresp,part,prefix) {
2611: var result = [];
2612: result['overwrite'] = [];
2613: result['delete'] = [];
2614: var elemnum = formname.elements.length;
2615: if (elemnum == 0) {
2616: return result;
2617: }
2618: var uploadstr;
2619: var deletestr;
2620: if ((prefix != undefined) && (prefix != '')) {
2621: var prepend = prefix+'_';
2622: uploadstr = new RegExp("^"+prepend+"HWFILE"+part+".+\$");
2623: deletestr = new RegExp("^"+prepend+"HWFILE"+part+".+_\\\\d+_delete\$");
2624: multiresp = check_for_multiples(prepend);
2625: path = check_for_turninpath(prepend);
2626: } else {
2627: uploadstr = new RegExp("^HWFILE"+part+".+\$");
2628: deletestr = new RegExp("^HWFILE"+part+".+_\\\\d+_delete\$");
2629: }
2630: var alluploads = [];
2631: var allchecked = [];
2632: var allskipdel = [];
2633: var fnametrim = /[^\\/\\\\]+\$/;
2634: for (var i=0; i<formname.elements.length; i++) {
2635: var id = formname.elements[i].id;
2636: if (id != '') {
2637: if (uploadstr.test(id)) {
2638: if (formname.elements[i].type == 'file') {
2639: alluploads.push(id);
2640: } else {
2641: if (deletestr.test(id)) {
2642: if (formname.elements[i].type == 'checkbox') {
2643: if (formname.elements[i].checked) {
2644: allchecked.push(id);
2645: }
2646: }
2647: }
2648: }
2649: }
2650: }
2651: }
2652: for (var j=0; j<alluploads.length; j++) {
2653: var delstr = new RegExp("^"+alluploads[j]+"_\\\\d+_delete\$");
2654: var delboxes = [];
2655: for (var k=0; k<formname.elements.length; k++) {
2656: var id = formname.elements[k].id;
2657: if ((id != '') && (id != undefined)) {
2658: if (delstr.test(id)) {
2659: if (formname.elements[k].type == 'checkbox') {
2660: delboxes.push(id);
2661: }
2662: }
2663: }
2664: }
2665: if (delboxes.length > 0) {
2666: if ((formname.elements[alluploads[j]].value != undefined) &&
2667: (formname.elements[alluploads[j]].value != '')) {
2668: var filepath = formname.elements[alluploads[j]].value;
2669: var newfilename = fnametrim.exec(filepath);
2670: if (newfilename != null) {
2671: var filename = String(newfilename);
2672: var nospaces = filename.replace(/\\s+/g,'_');
2673: var nospecials = nospaces.replace(/[^\\/\\w\\.\\-]/g,'');
2674: var cleanfilename = nospecials.replace(/\\.(\\d+\\.)/g,"_\$1");
2675: if (cleanfilename != '') {
2676: var fullpath = path+"/"+cleanfilename;
2677: if (multiresp == 1) {
2678: var partid = String(alluploads[i]);
2679: var subdir = partid.replace(/^\\d*.?\\d*_?HWFILE/,'');
2680: if (subdir != "" && subdir != undefined) {
2681: fullpath = path+"/"+subdir+"/"+cleanfilename;
2682: }
2683: }
2684: for (var m=0; m<delboxes.length; m++) {
2685: if (fullpath == formname.elements[delboxes[m]].value) {
2686: if (formname.elements[delboxes[m]].checked) {
2687: allskipdel.push(delboxes[m]);
2688: } else {
2689: result['overwrite'].push(alluploads[j]);
2690: }
2691: break;
2692: }
2693: }
2694: }
2695: }
2696: }
2697: }
2698: }
2699: if (allchecked.length > 0) {
2700: if (allskipdel.length > 0) {
2701: for (var n=0; n<allchecked.length; n++) {
2702: if (allskipdel.indexOf(allchecked[n]) == -1) {
2703: result['delete'].push(allchecked[n]);
2704: }
2705: }
2706: } else {
2707: result['delete'].push.apply(result['delete'],allchecked);
2708: }
2709: }
2710: return result;
2711: }
2712:
2713: function check_for_multiples(prefix) {
2714: $multtext
2715: }
2716:
2717: function check_for_turninpath(prefix) {
2718: $turninpathtext
2719: }
2720:
2721: // ]]>
2722: </script>
2723:
2724: $arrayindexofjs
2725:
2726: ENDSCRIPT
2727: }
2728:
2729: ##############################################
2730: ##############################################
2731:
2732: sub resize_scrollbox_js {
2733: my ($context,$tabidstr) = @_;
2734: my (%names,$paddingwfrac,$offsetwfrac,$offsetv,$minw,$minv);
2735: if ($context eq 'docs') {
2736: %names = (
2737: boxw => 'contenteditor',
2738: item => 'contentlist',
2739: header => 'uploadfileresult',
2740: scroll => 'contentscroll',
2741: boxh => 'contenteditor',
2742: );
2743: $paddingwfrac = 0.09;
2744: $offsetwfrac = 0.015;
2745: $offsetv = 20;
2746: $minw = 250;
2747: $minv = 200;
2748: } elsif ($context eq 'params') {
2749: %names = (
2750: boxw => 'parameditor',
2751: item => 'mapmenuinner',
2752: header => 'parmstep1',
2753: scroll => 'mapmenuscroll',
2754: boxh => 'parmlevel',
2755: );
2756: $paddingwfrac = 0.2;
2757: $offsetwfrac = 0.015;
2758: $offsetv = 80;
2759: $minw = 100;
2760: $minv = 100;
2761: }
2762: my $viewport_js = &Apache::loncommon::viewport_geometry_js();
2763: my $output = '
2764:
2765: window.onresize=callResize;
2766:
2767: ';
2768: if ($context eq 'docs') {
2769: $output .= '
2770: var activeTab;
2771: ';
2772: }
2773: $output .= <<"FIRST";
2774:
2775: $viewport_js
2776:
2777: function resize_scrollbox(scrollboxname,chkw,chkh) {
2778: var scrollboxid = 'div_'+scrollboxname;
2779: var scrolltableid = 'table_'+scrollboxname;
2780: var scrollbox;
2781: var scrolltable;
2782:
2783: if (document.getElementById("$names{'boxw'}") == null) {
2784: return;
2785: }
2786:
2787: if (document.getElementById(scrollboxid) == null) {
2788: return;
2789: } else {
2790: scrollbox = document.getElementById(scrollboxid);
2791: }
2792:
2793:
2794: if (document.getElementById(scrolltableid) == null) {
2795: return;
2796: } else {
2797: scrolltable = document.getElementById(scrolltableid);
2798: }
2799:
2800: init_geometry();
2801: var vph = Geometry.getViewportHeight();
2802: var vpw = Geometry.getViewportWidth();
2803:
2804: FIRST
2805: if ($context eq 'docs') {
2806: $output .= "
2807: var alltabs = ['$tabidstr'];
2808: ";
2809: } elsif ($context eq 'params') {
2810: $output .= "
2811: if (document.getElementById('$names{'boxh'}') == null) {
2812: return;
2813: }
2814: ";
2815: }
2816: $output .= <<"SECOND";
2817: var listwchange;
2818: if (chkw == 1) {
2819: var boxw = document.getElementById("$names{'boxw'}").offsetWidth;
2820: var itemw;
2821: var itemid = document.getElementById("$names{'item'}");
2822: if (itemid != null) {
2823: itemw = itemid.offsetWidth;
2824: }
2825: var itemwstart = itemw;
2826:
2827: var scrollboxw = scrollbox.offsetWidth;
2828: var scrollboxscrollw = scrollbox.scrollWidth;
2829:
2830: var offsetw = parseInt(vpw * $offsetwfrac);
2831: var paddingw = parseInt(vpw * $paddingwfrac);
2832:
2833: var minscrollboxw = $minw;
2834: var maxcolw = 0;
2835: SECOND
2836: if ($context eq 'docs') {
2837: $output .= <<"DOCSONE";
2838: var actabw = 0;
2839: for (var i=0; i<alltabs.length; i++) {
2840: if (activeTab == alltabs[i]) {
2841: actabw = document.getElementById(alltabs[i]).offsetWidth;
2842: if (actabw > maxcolw) {
2843: maxcolw = actabw;
2844: }
2845: } else {
2846: if (document.getElementById(alltabs[i]) != null) {
2847: var thistab = document.getElementById(alltabs[i]);
2848: thistab.style.visibility = 'hidden';
2849: thistab.style.display = 'block';
2850: var tabw = document.getElementById(alltabs[i]).offsetWidth;
2851: thistab.style.display = 'none';
2852: thistab.style.visibility = '';
2853: if (tabw > maxcolw) {
2854: maxcolw = tabw;
2855: }
2856: }
2857: }
2858: }
2859: DOCSONE
2860: } elsif ($context eq 'params') {
2861: $output .= <<"PARAMSONE";
2862: var parmlevelrows = new Array();
2863: var mapmenucells = new Array();
2864: parmlevelrows = document.getElementById("$names{'boxh'}").rows;
2865: var numrows = parmlevelrows.length;
2866: if (numrows > 1) {
2867: mapmenucells = parmlevelrows[2].getElementsByTagName('td');
2868: }
2869: maxcolw = mapmenucells[0].offsetWidth;
2870: PARAMSONE
2871: }
2872: $output .= <<"THIRD";
2873: if (maxcolw > 0) {
2874: var newscrollboxw;
2875: if (maxcolw+paddingw+scrollboxscrollw<boxw) {
2876: newscrollboxw = boxw-paddingw-maxcolw;
2877: if (newscrollboxw < minscrollboxw) {
2878: newscrollboxw = minscrollboxw;
2879: }
2880: scrollbox.style.width = newscrollboxw+"px";
2881: if (newscrollboxw != scrollboxw) {
2882: var newitemw = newscrollboxw-offsetw;
2883: itemid.style.width = newitemw+"px";
2884: }
2885: } else {
2886: newscrollboxw = boxw-paddingw-maxcolw;
2887: if (newscrollboxw < minscrollboxw) {
2888: newscrollboxw = minscrollboxw;
2889: }
2890: scrollbox.style.width = newscrollboxw+"px";
2891: if (newscrollboxw != scrollboxw) {
2892: var newitemw = newscrollboxw-offsetw;
2893: itemid.style.width = newitemw+"px";
2894: }
2895: }
2896:
2897: if (newscrollboxw != scrollboxw) {
2898: var newscrolltablew = newscrollboxw+offsetw;
2899: scrolltable.style.width = newscrolltablew+"px";
2900: }
2901: }
2902:
2903: if (itemid.offsetWidth != itemwstart) {
2904: listwchange = 1;
2905: }
2906: THIRD
2907: if ($context eq 'docs') {
2908: $output .= <<"DOCSTWO";
2909: if (activeTab == 'cc1') {
2910: if (document.getElementById('cc_hrule') != null) {
2911: document.getElementById('cc_hrule').style.width=actabw+"px";
2912: }
2913: } else {
2914: if (activeTab == 'bb1') {
2915: if (document.getElementById('bb_hrule') != null) {
2916: document.getElementById('bb_hrule').style.width=actabw+"px";
2917: }
2918: } else {
2919: if (activeTab == 'ee2') {
2920: if (document.getElementById('ee_hrule') != null) {
2921: document.getElementById('ee_hrule').style.width=actabw+"px";
2922: }
2923: }
2924: }
2925: }
2926: DOCSTWO
2927: }
2928: $output .= <<"FOURTH";
2929: }
2930: if ((chkh == 1) || (listwchange)) {
2931: var primaryheight = document.getElementById('LC_nav_bar').offsetHeight;
2932: var secondaryheight = document.getElementById('LC_secondary_menu').offsetHeight;
2933: var crumbsheight = document.getElementById('LC_breadcrumbs').offsetHeight;
2934: var dccidheight = 0;
2935: if (document.getElementById('dccid') != null) {
2936: dccidheight = document.getElementById('dccid').offsetHeight;
2937: }
2938: var headerheight = 0;
2939: if (document.getElementById("$names{'header'}") != null) {
2940: headerheight = document.getElementById("$names{'header'}").offsetHeight;
2941: }
2942: var tabbedheight = document.getElementById("tabbededitor").offsetHeight;
2943: var boxheight = document.getElementById("$names{'boxh'}").offsetHeight;
2944: var freevspace = vph-(primaryheight+secondaryheight+crumbsheight+dccidheight+headerheight+tabbedheight+boxheight);
2945:
2946: var scrollboxheight = scrollbox.offsetHeight;
2947: var scrollboxscrollheight = scrollbox.scrollHeight;
2948:
2949: var minvscrollbox = $minv;
2950: var offsetv = $offsetv;
2951: var newscrollboxheight;
2952: if (freevspace < 0) {
2953: newscrollboxheight = scrollboxheight+freevspace-offsetv;
2954: if (newscrollboxheight < minvscrollbox) {
2955: newscrollboxheight = minvscrollbox;
2956: }
2957: scrollbox.style.height = newscrollboxheight + "px";
2958: } else {
2959: if (scrollboxscrollheight > scrollboxheight) {
2960: if (freevspace > offsetv) {
2961: newscrollboxheight = scrollboxheight+freevspace-offsetv;
2962: if (newscrollboxheight < minvscrollbox) {
2963: newscrollboxheight = minvscrollbox;
2964: }
2965: scrollbox.style.height = newscrollboxheight+"px";
2966: }
2967: }
2968: }
2969: scrollboxheight = scrollbox.offsetHeight;
2970: var itemh = document.getElementById("$names{'item'}").offsetHeight;
2971:
2972: if (scrollboxscrollheight <= scrollboxheight) {
2973: if ((itemh+offsetv)<scrollboxheight) {
2974: newscrollheight = itemh+offsetv;
2975: scrollbox.style.height = newscrollheight+"px";
2976: }
2977: }
2978: }
2979: return;
2980: }
2981:
2982: function callResize() {
2983: var timer;
2984: clearTimeout(timer);
2985: timer=setTimeout('resize_scrollbox("$names{'scroll'}","1","1")',500);
2986: }
2987:
2988: FOURTH
2989: return $output;
2990: }
2991:
2992:
2993: ##############################################
2994: ##############################################
2995:
2996: # javascript_valid_email
2997: #
2998: # Generates javascript to validate an e-mail address.
2999: # Returns a javascript function which accetps a form field as argumnent, and
3000: # returns false if field.value does not satisfy two regular expression matches
3001: # for a valid e-mail address. Backwards compatible with old browsers without
3002: # support for javascript RegExp (just checks for @ in field.value in this case).
3003:
3004: sub javascript_valid_email {
3005: my $scripttag .= <<'END';
3006: function validmail(field) {
3007: var str = field.value;
3008: if (window.RegExp) {
3009: var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
3010: var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
3011: var reg1 = new RegExp(reg1str);
3012: var reg2 = new RegExp(reg2str);
3013: if (!reg1.test(str) && reg2.test(str)) {
3014: return true;
3015: }
3016: return false;
3017: }
3018: else
3019: {
3020: if(str.indexOf("@") >= 0) {
3021: return true;
3022: }
3023: return false;
3024: }
3025: }
3026: END
3027: return $scripttag;
3028: }
3029:
3030:
3031: # USAGE: htmltag(element, content, {attribute => value,...});
3032: #
3033: # EXAMPLES:
3034: # - htmltag('a', 'this is an anchor', {href => 'www.example.com',
3035: # title => 'this is a title'})
3036: #
3037: # - You might want to set up needed tags like:
3038: #
3039: # my $h3 = sub { return htmltag( "h3", @_ ) };
3040: #
3041: # ... and use them: $h3->("This is a headline")
3042: #
3043: # - To set up a couple of tags, see sub inittags
3044: #
3045: # NOTES:
3046: # - Empty elements, such as <br/> are correctly terminated,
3047: # i.e. htmltag('br') returns <br/>
3048: # - Empty attributes (title="") are filtered out.
3049: # - The function will not check for deprecated attributes.
3050: #
3051: # OUTPUT: content enclosed in xhtml conform tags
3052: sub htmltag{
3053: return
3054: qq|<$_[0]|
3055: . join( '', map { qq| $_="${$_[2]}{$_}"| if ${$_[2]}{$_} } keys %{ $_[2] } )
3056: . ($_[1] ? qq|>$_[1]</$_[0]>| : qq|/>|). "\n";
3057: };
3058:
3059:
3060: # USAGE: inittags(@tags);
3061: #
3062: # EXAMPLES:
3063: # - my ($h1, $h2, $h3) = inittags( qw( h1 h2 h3 ) )
3064: # $h1->("This is a headline") #Returns: <h1>This is a headline</h1>
3065: #
3066: # NOTES: See sub htmltag for further information.
3067: #
3068: # OUTPUT: List of subroutines.
3069: sub inittags {
3070: my @tags = @_;
3071: return map { my $tag = $_;
3072: sub { return htmltag( $tag, @_ ) }
3073: } @tags;
3074: }
3075:
3076:
3077: # USAGE: scripttag(scriptcode, [start|end|both]);
3078: #
3079: # EXAMPLES:
3080: # - scripttag("alert('Hello World!')", 'both')
3081: # returns:
3082: # <script type="text/javascript">
3083: # // BEGIN LON-CAPA Internal
3084: # alert(Hello World!')
3085: # // END LON-CAPA Internal
3086: # </script>
3087: #
3088: # NOTES:
3089: # - works currently only for javascripts
3090: #
3091: # OUTPUT:
3092: # Scriptcode properly enclosed in <script> and CDATA tags (and LC
3093: # Internal markers if 2nd argument is given)
3094: sub scripttag {
3095: my ( $content, $marker ) = @_;
3096: return unless defined $content;
3097:
3098: my $begin = "\n// BEGIN LON-CAPA Internal\n";
3099: my $end = "\n// END LON-CAPA Internal\n";
3100:
3101: if ($marker) {
3102: $content = $begin . $content if $marker eq 'start' or $marker eq 'both';
3103: $content .= $end if $marker eq 'end' or $marker eq 'both';
3104: }
3105:
3106: $content = "\n// <![CDATA[\n$content\n// ]]>\n";
3107:
3108: return htmltag('script', $content, {type => 'text/javascript'});
3109: };
3110:
3111: =pod
3112:
3113: =item &list_from_array( \@array, { listattr =>{}, itemattr =>{} } )
3114:
3115: Constructs a XHTML list from \@array.
3116:
3117: input:
3118:
3119: =over
3120:
3121: =item \@array
3122:
3123: A reference to the array containing text that will be wrapped in <li></li> tags.
3124:
3125: =item { listattr => {}, itemattr =>{} }
3126:
3127: Attributes for <ul> and <li> passed in as hash references.
3128: See htmltag() for more details.
3129:
3130: =back
3131:
3132: returns: XHTML list as String.
3133:
3134: =cut
3135:
3136: # \@items, {listattr => { class => 'abc', id => 'xyx' }, itemattr => {class => 'abc', id => 'xyx'}}
3137: sub list_from_array {
3138: my ($items, $args) = @_;
3139: return unless (ref($items) eq 'ARRAY');
3140: return unless scalar @$items;
3141: my ($ul, $li) = inittags( qw(ul li) );
3142: my $listitems = join '', map { $li->($_, $args->{itemattr}) } @$items;
3143: return $ul->( $listitems, $args->{listattr} );
3144: }
3145:
3146:
3147: ##############################################
3148: ##############################################
3149:
3150: # generate_menu
3151: #
3152: # Generates html markup for a menu.
3153: #
3154: # Inputs:
3155: # An array of following structure:
3156: # ({ categorytitle => 'Categorytitle',
3157: # items => [
3158: # {
3159: # linktext => 'Text to be displayed',
3160: # url => 'URL the link is pointing to, i.e. /adm/site?action=dosomething',
3161: # permission => 'Contains permissions as returned from lonnet::allowed(),
3162: # must evaluate to true in order to activate the link',
3163: # icon => 'icon filename',
3164: # alttext => 'alt text for the icon',
3165: # help => 'Name of the corresponding helpfile',
3166: # linktitle => 'Description of the link (used for title tag)'
3167: # },
3168: # ...
3169: # ]
3170: # },
3171: # ...
3172: # )
3173: #
3174: # Outputs: A scalar containing the html markup for the menu.
3175:
3176: sub generate_menu {
3177: my @menu = @_;
3178: # subs for specific html elements
3179: my ($h3, $div, $ul, $li, $a, $img) = inittags( qw(h3 div ul li a img) );
3180:
3181: my @categories; # each element represents the entire markup for a category
3182:
3183: foreach my $category (@menu) {
3184: my @links; # contains the links for the current $category
3185: foreach my $link (@{$$category{items}}) {
3186: next unless $$link{permission};
3187:
3188: # create the markup for the current $link and push it into @links.
3189: # each entry consists of an image and a text optionally followed
3190: # by a help link.
3191: my $src;
3192: if ($$link{icon} ne '') {
3193: $src = '/res/adm/pages/'.$$link{icon};
3194: }
3195: push(@links,$li->(
3196: $a->(
3197: $img->("", {
3198: class => "LC_noBorder LC_middle",
3199: src => $src,
3200: alt => mt(defined($$link{alttext}) ?
3201: $$link{alttext} : $$link{linktext})
3202: }), {
3203: href => $$link{url},
3204: title => mt($$link{linktitle}),
3205: class => 'LC_menubuttons_link'
3206: }).
3207: $a->(mt($$link{linktext}), {
3208: href => $$link{url},
3209: title => mt($$link{linktitle}),
3210: class => "LC_menubuttons_link"
3211: }).
3212: (defined($$link{help}) ?
3213: Apache::loncommon::help_open_topic($$link{help}) : ''),
3214: {class => "LC_menubuttons_inline_text"}));
3215: }
3216:
3217: # wrap categorytitle in <h3>, concatenate with
3218: # joined and in <ul> tags wrapped @links
3219: # and wrap everything in an enclosing <div> and push it into
3220: # @categories
3221: # such that each element looks like:
3222: # <div><h3>title</h3><ul><li>...</li>...</ul></div>
3223: # the category won't be added if there aren't any links
3224: push(@categories,
3225: $div->($h3->(mt($$category{categorytitle}), {class=>"LC_hcell"}).
3226: $ul->(join('' ,@links), {class =>"LC_ListStyleNormal" }),
3227: {class=>"LC_Box LC_400Box"})) if scalar(@links);
3228: }
3229:
3230: # wrap the joined @categories in another <div> (column layout)
3231: return $div->(join('', @categories), {class => "LC_columnSection"});
3232: }
3233:
3234: ##############################################
3235: ##############################################
3236:
3237: =pod
3238:
3239: =item &start_funclist()
3240:
3241: Start list of available functions
3242:
3243: Typically used to offer a simple list of available functions
3244: at top or bottom of page.
3245: All available functions/actions for the current page
3246: should be included in this list.
3247:
3248: If the optional headline text is not provided, a default text will be used.
3249:
3250:
3251: Related routines:
3252: =over 4
3253: add_item_funclist
3254: end_funclist
3255: =back
3256:
3257:
3258: Inputs: (optional) headline text
3259:
3260: Returns: HTML code with function list start
3261:
3262: =cut
3263:
3264: ##############################################
3265: ##############################################
3266:
3267: sub start_funclist {
3268: my($legendtext)=@_;
3269: $legendtext=&mt('Functions') if !$legendtext;
3270: return '<ul class="LC_funclist"><li style="font-weight:bold; margin-left:0.8em;">'.$legendtext.'</li>'."\n";
3271: }
3272:
3273:
3274: ##############################################
3275: ##############################################
3276:
3277: =pod
3278:
3279: =item &add_item_funclist()
3280:
3281: Adds an item to the list of available functions
3282:
3283: Related routines:
3284: =over 4
3285: start_funclist
3286: end_funclist
3287: =back
3288:
3289: Inputs: content item with text and link to function
3290:
3291: Returns: HTML code with list item for funclist
3292:
3293: =cut
3294:
3295: ##############################################
3296: ##############################################
3297:
3298: sub add_item_funclist {
3299: my($content) = @_;
3300: return '<li>'.$content.'</li>'."\n";
3301: }
3302:
3303: =pod
3304:
3305: =item &end_funclist()
3306:
3307: End list of available functions
3308:
3309: Related routines:
3310: =over 4
3311: start_funclist
3312: add_item_funclist
3313: =back
3314:
3315: Inputs: ./.
3316:
3317: Returns: HTML code with function list end
3318: =cut
3319:
3320: sub end_funclist {
3321: return "</ul>\n";
3322: }
3323:
3324: =pod
3325:
3326: =item &funclist_from_array( \@array, {legend => 'text for legend'} )
3327:
3328: Constructs a XHTML list from \@array with the first item being visually
3329: highlighted and set to the value of legend or 'Functions' if legend is
3330: empty.
3331:
3332: =over
3333:
3334: =item \@array
3335:
3336: A reference to the array containing text that will be wrapped in <li></li> tags.
3337:
3338: =item { legend => 'text' }
3339:
3340: A string that's used as visually highlighted first item. 'Functions' is used if
3341: it's value evaluates to false.
3342:
3343: =back
3344:
3345: returns: XHTML list as string.
3346:
3347: =back
3348:
3349: =cut
3350:
3351: sub funclist_from_array {
3352: my ($items, $args) = @_;
3353: return unless(ref($items) eq 'ARRAY');
3354: $args->{legend} ||= mt('Functions');
3355: return list_from_array( [$args->{legend}, @$items],
3356: { listattr => {class => 'LC_funclist'} });
3357: }
3358:
3359: 1;
3360:
3361: __END__
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