1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.356 2014/01/15 17:52:04 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ######################################################################
29: ######################################################################
30:
31: =pod
32:
33: =head1 NAME
34:
35: Apache::lonhtmlcommon - routines to do common html things
36:
37: =head1 SYNOPSIS
38:
39: Referenced by other mod_perl Apache modules.
40:
41: =head1 INTRODUCTION
42:
43: lonhtmlcommon is a collection of subroutines used to present information
44: in a consistent html format, or provide other functionality related to
45: html.
46:
47: =head2 General Subroutines
48:
49: =over 4
50:
51: =cut
52:
53: ######################################################################
54: ######################################################################
55:
56: package Apache::lonhtmlcommon;
57:
58: use strict;
59: use Time::Local;
60: use Time::HiRes;
61: use Apache::lonlocal;
62: use Apache::lonnet;
63: use HTML::Entities();
64: use LONCAPA qw(:DEFAULT :match);
65:
66: sub java_not_enabled {
67: if (($env{'browser.mobile'}) && ($env{'browser.mobile'} =~ /^ipad|ipod|iphone$/i)) {
68: return "\n".'<span class="LC_error">'.
69: &mt('The required Java applet could not be started, because Java is not supported by your mobile device.').
70: "</span>\n";
71: } else {
72: return "\n".'<span class="LC_error">'.
73: &mt('The required Java applet could not be started. Please make sure to have Java installed and active in your browser.').
74: "</span>\n";
75: }
76: }
77:
78: sub coursepreflink {
79: my ($text,$category)=@_;
80: if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
81: return '<a target="_top" href="'.&HTML::Entities::encode("/adm/courseprefs?phase=display&actions=$category",'<>&"').'"><span class="LC_setting">'.$text.'</span></a>';
82: } else {
83: return '';
84: }
85: }
86:
87: sub raw_href_to_link {
88: my ($message)=@_;
89: $message=~s/(https?\:\/\/[^\s\'\"\<]+)([\s\<]|$)/<a href="$1"><tt>$1<\/tt><\/a>$2/gi;
90: return $message;
91: }
92:
93: sub entity_encode {
94: my ($text)=@_;
95: return &HTML::Entities::encode($text, '<>&"');
96: }
97:
98: sub direct_parm_link {
99: my ($linktext,$symb,$filter,$part,$target)=@_;
100: $symb=&entity_encode($symb);
101: $filter=&entity_encode($filter);
102: $part=&entity_encode($part);
103: if (($symb) && (&Apache::lonnet::allowed('opa')) && ($target ne 'tex')) {
104: return "<a target='_top' href='/adm/parmset?symb=$symb&filter=$filter&part=$part'><span class='LC_setting'>$linktext</span></a>";
105: } else {
106: return $linktext;
107: }
108: }
109: ##############################################
110: ##############################################
111:
112: =item &confirm_success()
113:
114: Successful completion of an operation message
115:
116: =cut
117:
118: sub confirm_success {
119: my ($message,$failure)=@_;
120: if ($failure) {
121: return '<span class="LC_error" style="font-size: inherit;">'."\n"
122: .'<img src="/adm/lonIcons/navmap.wrong.gif" alt="'.&mt('Error').'" /> '."\n"
123: .$message."\n"
124: .'</span>'."\n";
125: } else {
126: return '<span class="LC_success">'."\n"
127: .'<img src="/adm/lonIcons/navmap.correct.gif" alt="'.&mt('OK').'" /> '."\n"
128: .$message."\n"
129: .'</span>'."\n";
130: }
131: }
132:
133: ##############################################
134: ##############################################
135:
136: =pod
137:
138: =item &dragmath_button()
139:
140: Creates a button that launches a dragmath popup-window, in which an
141: expression can be edited and pasted as LaTeX into a specified textarea.
142:
143: textarea - Name of the textarea to edit.
144: helpicon - If true, show a help icon to the right of the button.
145:
146: =cut
147:
148: sub dragmath_button {
149: my ($textarea,$helpicon) = @_;
150: my $help_text;
151: if ($helpicon) {
152: $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor',undef,undef,undef,undef,'mathhelpicon_'.$textarea);
153: }
154: my $buttontext=&mt('Edit Math');
155: return <<ENDDRAGMATH;
156: <input type="button" value="$buttontext" onclick="javascript:mathedit('$textarea',document)" />$help_text
157: ENDDRAGMATH
158: }
159:
160: ##############################################
161:
162: =pod
163:
164: =item &dragmath_js()
165:
166: Javascript used to open pop-up window containing dragmath applet which
167: can be used to paste LaTeX into a textarea.
168:
169: =cut
170:
171: sub dragmath_js {
172: my ($popup) = @_;
173: return <<ENDDRAGMATHJS;
174: <script type="text/javascript">
175: // <![CDATA[
176: function mathedit(textarea, doc) {
177: targetEntry = textarea;
178: targetDoc = doc;
179: newwin = window.open("/adm/dragmath/$popup.html","","width=565,height=500,resizable");
180: }
181: // ]]>
182: </script>
183:
184: ENDDRAGMATHJS
185: }
186:
187: ##############################################
188: ##############################################
189:
190: =pod
191:
192: =item &dependencies_button()
193:
194: Creates a button that launches a popup-window, in which dependencies
195: for the web page in the main window can be added to, replaced or deleted.
196:
197: =cut
198:
199: sub dependencies_button {
200: my $buttontext=&mt('Manage Dependencies');
201: return <<"END";
202: <input type="button" value="$buttontext" onclick="javascript:dependencycheck();" />
203: END
204: }
205:
206: ##############################################
207:
208: =pod
209:
210: =item &dependencycheck_js()
211:
212: Javascript used to open pop-up window containing interface to manage
213: dependencies for a web page uploaded diretcly to a course.
214:
215: =cut
216:
217: sub dependencycheck_js {
218: my ($symb,$title,$url,$folderpath,$uri) = @_;
219: my $link;
220: if ($symb) {
221: $link = '/adm/dependencies?symb='.&HTML::Entities::encode($symb,'<>&"');
222: } elsif ($folderpath) {
223: $link = '/adm/dependencies?folderpath='.&HTML::Entities::encode($folderpath,'<>&"');
224: $url = $uri;
225: } elsif ($uri =~ m{^/public/$match_domain/$match_courseid/syllabus$}) {
226: $link = '/adm/dependencies';
227: }
228: $link .= (($link=~/\?/)?'&':'?').'title='.
229: &HTML::Entities::encode($title,'<>&"');
230: if ($url) {
231: $link .= '&url='.&HTML::Entities::encode($url,'<>&"');
232: }
233: return <<ENDJS;
234: <script type="text/javascript">
235: // <![CDATA[
236: function dependencycheck() {
237: depwin = window.open("$link","","width=750,height=500,resizable,scrollbars=yes");
238: }
239: // ]]>
240: </script>
241: ENDJS
242: }
243:
244: ##############################################
245: ##############################################
246:
247: =pod
248:
249: =item &authorbombs()
250:
251: =cut
252:
253: ##############################################
254: ##############################################
255:
256: sub authorbombs {
257: my $url=shift;
258: $url=&Apache::lonnet::declutter($url);
259: my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
260: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
261: foreach my $bomb (keys(%bombs)) {
262: if ($bomb =~ /^$udom\/$uname\//) {
263: return '<a href="/adm/bombs/'.$url.
264: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" alt="'.&mt('Bomb').'" border="0" /></a>'.
265: &Apache::loncommon::help_open_topic('About_Bombs');
266: }
267: }
268: return '';
269: }
270:
271: ##############################################
272: ##############################################
273:
274: sub recent_filename {
275: my $area=shift;
276: return 'nohist_recent_'.&escape($area);
277: }
278:
279: sub store_recent {
280: my ($area,$name,$value,$freeze)=@_;
281: my $file=&recent_filename($area);
282: my %recent=&Apache::lonnet::dump($file);
283: if (scalar(keys(%recent))>20) {
284: # remove oldest value
285: my $oldest=time();
286: my $delkey='';
287: foreach my $item (keys(%recent)) {
288: my $thistime=(split(/\&/,$recent{$item}))[0];
289: if (($thistime ne "always_include") && ($thistime<$oldest)) {
290: $oldest=$thistime;
291: $delkey=$item;
292: }
293: }
294: &Apache::lonnet::del($file,[$delkey]);
295: }
296: # store new value
297: my $timestamp;
298: if ($freeze) {
299: $timestamp = "always_include";
300: } else {
301: $timestamp = time();
302: }
303: &Apache::lonnet::put($file,{ $name =>
304: $timestamp.'&'.&escape($value) });
305: }
306:
307: sub remove_recent {
308: my ($area,$names)=@_;
309: my $file=&recent_filename($area);
310: return &Apache::lonnet::del($file,$names);
311: }
312:
313: sub select_recent {
314: my ($area,$fieldname,$event)=@_;
315: my %recent=&Apache::lonnet::dump(&recent_filename($area));
316: my $return="\n<select name='$fieldname'".
317: ($event?" onchange='$event'":'').
318: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
319: foreach my $value (sort(keys(%recent))) {
320: unless ($value =~/^error\:/) {
321: my $escaped = &Apache::loncommon::escape_url($value);
322: &Apache::loncommon::inhibit_menu_check(\$escaped);
323: if ($area eq 'residx') {
324: next if ((!&Apache::lonnet::allowed('bre',$value)) && (!&Apache::lonnet::allowed('bro',$value)));
325: }
326: $return.="\n<option value='$escaped'>".
327: &unescape((split(/\&/,$recent{$value}))[1]).
328: '</option>';
329: }
330: }
331: $return.="\n</select>\n";
332: return $return;
333: }
334:
335: sub get_recent {
336: my ($area, $n) = @_;
337: my %recent=&Apache::lonnet::dump(&recent_filename($area));
338:
339: # Create hash with key as time and recent as value
340: # Begin filling return_hash with any 'always_include' option
341: my %time_hash = ();
342: my %return_hash = ();
343: foreach my $item (keys(%recent)) {
344: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
345: if ($thistime eq 'always_include') {
346: $return_hash{$item} = &unescape($thisvalue);
347: $n--;
348: } else {
349: $time_hash{$thistime} = $item;
350: }
351: }
352:
353: # Sort by decreasing time and return key value pairs
354: my $idx = 1;
355: foreach my $item (reverse(sort(keys(%time_hash)))) {
356: $return_hash{$time_hash{$item}} =
357: &unescape((split(/\&/,$recent{$time_hash{$item}}))[1]);
358: if ($n && ($idx++ >= $n)) {last;}
359: }
360:
361: return %return_hash;
362: }
363:
364: sub get_recent_frozen {
365: my ($area) = @_;
366: my %recent=&Apache::lonnet::dump(&recent_filename($area));
367:
368: # Create hash with all 'frozen' items
369: my %return_hash = ();
370: foreach my $item (keys(%recent)) {
371: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
372: if ($thistime eq 'always_include') {
373: $return_hash{$item} = &unescape($thisvalue);
374: }
375: }
376: return %return_hash;
377: }
378:
379:
380:
381: =pod
382:
383: =item &textbox()
384:
385: =cut
386:
387: ##############################################
388: ##############################################
389: sub textbox {
390: my ($name,$value,$size,$special) = @_;
391: $size = 40 if (! defined($size));
392: $value = &HTML::Entities::encode($value,'<>&"');
393: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
394: 'value="'.$value.'" '.$special.' />';
395: return $Str;
396: }
397:
398: ##############################################
399: ##############################################
400:
401: =pod
402:
403: =item &checkbox()
404:
405: =cut
406:
407: ##############################################
408: ##############################################
409: sub checkbox {
410: my ($name,$checked,$value) = @_;
411: my $Str = '<input type="checkbox" name="'.$name.'" ';
412: if (defined($value)) {
413: $Str .= 'value="'.$value.'"';
414: }
415: if ($checked) {
416: $Str .= ' checked="checked"';
417: }
418: $Str .= ' />';
419: return $Str;
420: }
421:
422:
423: =pod
424:
425: =item &radiobutton()
426:
427: =cut
428:
429: ##############################################
430: ##############################################
431: sub radio {
432: my ($name,$checked,$value) = @_;
433: my $Str = '<input type="radio" name="'.$name.'" ';
434: if (defined($value)) {
435: $Str .= 'value="'.$value.'"';
436: }
437: if ($checked eq $value) {
438: $Str .= ' checked="checked"';
439: }
440: $Str .= ' />';
441: return $Str;
442: }
443:
444: ##############################################
445: ##############################################
446:
447: =pod
448:
449: =item &date_setter()
450:
451: &date_setter returns html and javascript for a compact date-setting form.
452: To retrieve values from it, use &get_date_from_form.
453:
454: Inputs
455:
456: =over 4
457:
458: =item $dname
459:
460: The name to prepend to the form elements.
461: The form elements defined will be dname_year, dname_month, dname_day,
462: dname_hour, dname_min, and dname_sec.
463:
464: =item $currentvalue
465:
466: The current setting for this time parameter. A unix format time
467: (time in seconds since the beginning of Jan 1st, 1970, GMT.
468: An undefined value is taken to indicate the value is the current time
469: unless it is requested to leave it empty. See $includeempty.
470: Also, to be explicit, a value of 'now' also indicates the current time.
471:
472: =item $special
473:
474: Additional html/javascript to be associated with each element in
475: the date_setter. See lonparmset for example usage.
476:
477: =item $includeempty
478:
479: If it is set (true) and no date/time value is provided,
480: the date/time fields are left empty.
481:
482: =item $state
483:
484: Specifies the initial state of the form elements. Either 'disabled' or empty.
485: Defaults to empty, which indiciates the form elements are not disabled.
486:
487: =back
488:
489: Bugs
490:
491: The method used to restrict user input will fail in the year 2400.
492:
493: =cut
494:
495: ##############################################
496: ##############################################
497: sub date_setter {
498: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
499: $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink) = @_;
500: my $now = time;
501:
502: my $tzname;
503: my ($sec,$min,$hour,$mday,$month,$year) = ('', '', undef,''.''.'');
504: #other potentially useful values: wkday,yrday,is_daylight_savings
505:
506: if (! defined($state) || $state ne 'disabled') {
507: $state = '';
508: }
509: if (! defined($no_hh_mm_ss)) {
510: $no_hh_mm_ss = 0;
511: }
512: if ($currentvalue eq 'now') {
513: $currentvalue = $now;
514: }
515:
516: # Default value: Set empty date field to current time
517: # unless empty inclusion is requested
518: if ((!$includeempty) && (!$currentvalue)) {
519: $currentvalue = $now;
520: }
521: # Do we have a date? Split it!
522: if ($currentvalue) {
523: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue);
524:
525: #No values provided for hour, min, sec? Use default 0
526: if (($defhour) || ($defmin) || ($defsec)) {
527: $sec = ($defsec ? $defsec : 0);
528: $min = ($defmin ? $defmin : 0);
529: $hour = ($defhour ? $defhour : 0);
530: }
531: }
532: my $result = "\n<!-- $dname date setting form -->\n";
533: $result .= <<ENDJS;
534: <script type="text/javascript">
535: // <![CDATA[
536: function $dname\_checkday() {
537: var day = document.$formname.$dname\_day.value;
538: var month = document.$formname.$dname\_month.value;
539: var year = document.$formname.$dname\_year.value;
540: var valid = true;
541: if (day < 1) {
542: document.$formname.$dname\_day.value = 1;
543: }
544: if (day > 31) {
545: document.$formname.$dname\_day.value = 31;
546: }
547: if ((month == 1) || (month == 3) || (month == 5) ||
548: (month == 7) || (month == 8) || (month == 10) ||
549: (month == 12)) {
550: if (day > 31) {
551: document.$formname.$dname\_day.value = 31;
552: day = 31;
553: }
554: } else if (month == 2 ) {
555: if ((year % 4 == 0) && (year % 100 != 0)) {
556: if (day > 29) {
557: document.$formname.$dname\_day.value = 29;
558: }
559: } else if (day > 29) {
560: document.$formname.$dname\_day.value = 28;
561: }
562: } else if (day > 30) {
563: document.$formname.$dname\_day.value = 30;
564: }
565: }
566:
567: function $dname\_disable() {
568: document.$formname.$dname\_month.disabled=true;
569: document.$formname.$dname\_day.disabled=true;
570: document.$formname.$dname\_year.disabled=true;
571: document.$formname.$dname\_hour.disabled=true;
572: document.$formname.$dname\_minute.disabled=true;
573: document.$formname.$dname\_second.disabled=true;
574: }
575:
576: function $dname\_enable() {
577: document.$formname.$dname\_month.disabled=false;
578: document.$formname.$dname\_day.disabled=false;
579: document.$formname.$dname\_year.disabled=false;
580: document.$formname.$dname\_hour.disabled=false;
581: document.$formname.$dname\_minute.disabled=false;
582: document.$formname.$dname\_second.disabled=false;
583: }
584:
585: function $dname\_opencalendar() {
586: if (! document.$formname.$dname\_month.disabled) {
587: var calwin=window.open(
588: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
589: document.$formname.$dname\_month.value+"&year="+
590: document.$formname.$dname\_year.value,
591: "LONCAPAcal",
592: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
593: }
594:
595: }
596: // ]]>
597: </script>
598: ENDJS
599: $result .= ' <span class="LC_nobreak">';
600: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
601: # Month
602: my @Months = qw/January February March April May June
603: July August September October November December/;
604: # Pad @Months with a bogus value to make indexing easier
605: unshift(@Months,'If you can read this an error occurred');
606: if ($includeempty) { $monthselector.="<option value=''></option>"; }
607: for(my $m = 1;$m <=$#Months;$m++) {
608: $monthselector .= qq{ <option value="$m"};
609: $monthselector .= ' selected="selected"' if ($m-1 eq $month);
610: $monthselector .= '> '.&mt($Months[$m]).' </option>'."\n";
611: }
612: $monthselector.= ' </select>';
613: # Day
614: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
615: # Year
616: my $yearselector = qq{<input type="text" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
617: #
618: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
619: if ($includeempty) {
620: $hourselector.=qq{<option value=''></option>};
621: }
622: for (my $h = 0;$h<24;$h++) {
623: $hourselector .= qq{<option value="$h"};
624: $hourselector .= ' selected="selected"' if (defined($hour) && $hour == $h);
625: $hourselector .= ">";
626: my $timest='';
627: if ($h == 0) {
628: $timest .= "12 am";
629: } elsif($h == 12) {
630: $timest .= "12 noon";
631: } elsif($h < 12) {
632: $timest .= "$h am";
633: } else {
634: $timest .= $h-12 ." pm";
635: }
636: $timest=&mt($timest);
637: $hourselector .= $timest." </option>\n";
638: }
639: $hourselector .= " </select>\n";
640: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
641: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
642: my $cal_link;
643: if (!$nolink) {
644: $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
645: }
646: #
647: my $tzone = ' '.$tzname.' ';
648: if ($no_hh_mm_ss) {
649: $result .= &mt('[_1] [_2] [_3] ',
650: $monthselector,$dayselector,$yearselector).
651: $tzone;
652: if (!$nolink) {
653: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
654: }
655: } else {
656: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
657: $monthselector,$dayselector,$yearselector,
658: $hourselector,$minuteselector,$secondselector).
659: $tzone;
660: if (!$nolink) {
661: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
662: }
663: }
664: $result .= "</span>\n<!-- end $dname date setting form -->\n";
665: return $result;
666: }
667:
668: sub get_timedates {
669: my ($epoch) = @_;
670: my $dt = DateTime->from_epoch(epoch => $epoch)
671: ->set_time_zone(&Apache::lonlocal::gettimezone());
672: my $tzname = $dt->time_zone_short_name();
673: my $sec = $dt->second;
674: my $min = $dt->minute;
675: my $hour = $dt->hour;
676: my $mday = $dt->day;
677: my $month = $dt->month;
678: if ($month) {
679: $month --;
680: }
681: my $year = $dt->year;
682: return ($tzname,$sec,$min,$hour,$mday,$month,$year);
683: }
684:
685: sub build_url {
686: my ($base, $fields)=@_;
687: my $url;
688: $url = $base.'?';
689: foreach my $key (keys(%$fields)) {
690: $url.=&escape($key).'='.&escape($$fields{$key}).'&';
691: }
692: $url =~ s/&$//;
693: return $url;
694: }
695:
696:
697: ##############################################
698: ##############################################
699:
700: =pod
701:
702: =item &get_date_from_form()
703:
704: get_date_from_form retrieves the date specified in an &date_setter form.
705:
706: Inputs:
707:
708: =over 4
709:
710: =item $dname
711:
712: The name passed to &date_setter, which prefixes the form elements.
713:
714: =item $defaulttime
715:
716: The unix time to use as the default in case of poor inputs.
717:
718: =back
719:
720: Returns: Unix time represented in the form.
721:
722: =cut
723:
724: ##############################################
725: ##############################################
726: sub get_date_from_form {
727: my ($dname) = @_;
728: my ($sec,$min,$hour,$day,$month,$year);
729: #
730: if (defined($env{'form.'.$dname.'_second'})) {
731: my $tmpsec = $env{'form.'.$dname.'_second'};
732: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
733: $sec = $tmpsec;
734: }
735: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
736: } else {
737: $sec = 0;
738: }
739: if (defined($env{'form.'.$dname.'_minute'})) {
740: my $tmpmin = $env{'form.'.$dname.'_minute'};
741: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
742: $min = $tmpmin;
743: }
744: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
745: } else {
746: $min = 0;
747: }
748: if (defined($env{'form.'.$dname.'_hour'})) {
749: my $tmphour = $env{'form.'.$dname.'_hour'};
750: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
751: $hour = $tmphour;
752: }
753: } else {
754: $hour = 0;
755: }
756: if (defined($env{'form.'.$dname.'_day'})) {
757: my $tmpday = $env{'form.'.$dname.'_day'};
758: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
759: $day = $tmpday;
760: }
761: }
762: if (defined($env{'form.'.$dname.'_month'})) {
763: my $tmpmonth = $env{'form.'.$dname.'_month'};
764: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
765: $month = $tmpmonth;
766: }
767: }
768: if (defined($env{'form.'.$dname.'_year'})) {
769: my $tmpyear = $env{'form.'.$dname.'_year'};
770: if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
771: $year = $tmpyear;
772: }
773: }
774: if (($year<1970) || ($year>2037)) { return undef; }
775: if (defined($sec) && defined($min) && defined($hour) &&
776: defined($day) && defined($month) && defined($year)) {
777: my $timezone = &Apache::lonlocal::gettimezone();
778: my $dt = DateTime->new( year => $year,
779: month => $month,
780: day => $day,
781: hour => $hour,
782: minute => $min,
783: second => $sec,
784: time_zone => $timezone,
785: );
786: my $epoch_time = $dt->epoch;
787: if ($epoch_time ne '') {
788: return $epoch_time;
789: } else {
790: return undef;
791: }
792: } else {
793: return undef;
794: }
795: }
796:
797: ##############################################
798: ##############################################
799:
800: =pod
801:
802: =item &pjump_javascript_definition()
803:
804: Returns javascript defining the 'pjump' function, which opens up a
805: parameter setting wizard.
806:
807: =cut
808:
809: ##############################################
810: ##############################################
811: sub pjump_javascript_definition {
812: my $Str = <<END;
813: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
814: openMyModal("/adm/rat/parameter.html?type="+escape(type)
815: +"&value="+escape(value)+"&marker="+escape(marker)
816: +"&return="+escape(ret)
817: +"&call="+escape(call)+"&name="+escape(dis)
818: +"&defhour="+escape(hour)+"&defmin="+escape(min)
819: +"&defsec="+escape(sec)+"&modal=1",350,350,'no');
820: }
821: END
822: return $Str;
823: }
824:
825: ##############################################
826: ##############################################
827:
828: =pod
829:
830: =item &javascript_nothing()
831:
832: Return an appropriate null for the users browser. This is used
833: as the first arguement for window.open calls when you want a blank
834: window that you can then write to.
835:
836: =cut
837:
838: ##############################################
839: ##############################################
840: sub javascript_nothing {
841: # mozilla and other browsers work with "''", but IE on mac does not.
842: my $nothing = "''";
843: my $user_browser;
844: my $user_os;
845: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
846: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
847: if (! defined($user_browser) || ! defined($user_os)) {
848: (undef,$user_browser,undef,undef,undef,$user_os) =
849: &Apache::loncommon::decode_user_agent();
850: }
851: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
852: $nothing = "'javascript:void(0);'";
853: }
854: return $nothing;
855: }
856:
857: ##############################################
858: ##############################################
859: sub javascript_docopen {
860: my ($mimetype) = @_;
861: $mimetype ||= 'text/html';
862: # safari does not understand document.open() and loads "text/html"
863: my $nothing = "''";
864: my $user_browser;
865: my $user_os;
866: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
867: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
868: if (! defined($user_browser) || ! defined($user_os)) {
869: (undef,$user_browser,undef,undef,undef,$user_os) =
870: &Apache::loncommon::decode_user_agent();
871: }
872: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
873: $nothing = "document.clear()";
874: } else {
875: $nothing = "document.open('$mimetype','replace')";
876: }
877: return $nothing;
878: }
879:
880:
881: ##############################################
882: ##############################################
883:
884: =pod
885:
886: =item &StatusOptions()
887:
888: Returns html for a selection box which allows the user to choose the
889: enrollment status of students. The selection box name is 'Status'.
890:
891: Inputs:
892:
893: $status: the currently selected status. If undefined the value of
894: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
895: is used.
896:
897: $formname: The name of the form. If defined the onchange attribute of
898: the selection box is set to document.$formname.submit().
899:
900: $size: the size (number of lines) of the selection box.
901:
902: $onchange: javascript to use when the value is changed. Enclosed in
903: double quotes, ""s, not single quotes.
904:
905: Returns: a perl string as described.
906:
907: =cut
908:
909: ##############################################
910: ##############################################
911: sub StatusOptions {
912: my ($status, $formName,$size,$onchange,$mult)=@_;
913: $size = 1 if (!defined($size));
914: if (! defined($status)) {
915: $status = 'Active';
916: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
917: }
918:
919: my $Str = '';
920: $Str .= '<select name="Status"';
921: if (defined($mult)){
922: $Str .= ' multiple="multiple" ';
923: }
924: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
925: $Str .= ' onchange="document.'.$formName.'.submit()"';
926: }
927: if (defined($onchange)) {
928: $Str .= ' onchange="'.$onchange.'"';
929: }
930: $Str .= ' size="'.$size.'" ';
931: $Str .= '>'."\n";
932: foreach my $type (['Active', &mt('Currently Has Access')],
933: ['Future', &mt('Will Have Future Access')],
934: ['Expired', &mt('Previously Had Access')],
935: ['Any', &mt('Any Access Status')]) {
936: my ($name,$label) = @$type;
937: $Str .= '<option value="'.$name.'" ';
938: if ($status eq $name) {
939: $Str .= 'selected="selected" ';
940: }
941: $Str .= '>'.$label.'</option>'."\n";
942: }
943:
944: $Str .= '</select>'."\n";
945: }
946:
947: ########################################################
948: ########################################################
949:
950: =pod
951:
952: =item Progess Window Handling Routines
953:
954: These routines handle the creation, update, increment, and closure of
955: progress windows. The progress window reports to the user the number
956: of items completed and an estimate of the time required to complete the rest.
957:
958: =over 4
959:
960:
961: =item &Create_PrgWin()
962:
963: Writes javascript to the client to open a progress window and returns a
964: data structure used for bookkeeping.
965:
966: Inputs
967:
968: =over 4
969:
970: =item $r Apache request
971:
972: =item $number_to_do The total number of items being processed.
973:
974: =back
975:
976: Returns a hash containing the progress state data structure.
977:
978:
979: =item &Update_PrgWin()
980:
981: Updates the text in the progress indicator. Does not increment the count.
982: See &Increment_PrgWin.
983:
984: Inputs:
985:
986: =over 4
987:
988: =item $r Apache request
989:
990: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
991:
992: =item $displaystring The string to write to the status indicator
993:
994: =back
995:
996: Returns: none
997:
998:
999: =item Increment_PrgWin()
1000:
1001: Increment the count of items completed for the progress window by $step or 1 if no step is provided.
1002:
1003: Inputs:
1004:
1005: =over 4
1006:
1007: =item $r Apache request
1008:
1009: =item $prog_state Pointer to the data structure returned by Create_PrgWin
1010:
1011: =item $extraInfo A description of the items being iterated over. Typically
1012: 'student'.
1013:
1014: =item $step (optional) counter step. Will be set to default 1 if ommited. step must be greater than 0 or empty.
1015:
1016: =back
1017:
1018: Returns: none
1019:
1020:
1021: =item &Close_PrgWin()
1022:
1023: Closes the progress window.
1024:
1025: Inputs:
1026:
1027: =over 4
1028:
1029: =item $r Apache request
1030:
1031: =item $prog_state Pointer to the data structure returned by Create_PrgWin
1032:
1033: =back
1034:
1035: Returns: none
1036:
1037: =back
1038:
1039: =cut
1040:
1041: ########################################################
1042: ########################################################
1043:
1044:
1045: # Create progress
1046: sub Create_PrgWin {
1047: my ($r,$number_to_do)=@_;
1048: my %prog_state;
1049: $prog_state{'done'}=0;
1050: $prog_state{'firststart'}=&Time::HiRes::time();
1051: $prog_state{'laststart'}=&Time::HiRes::time();
1052: $prog_state{'max'}=$number_to_do;
1053: &Apache::loncommon::LCprogressbar($r);
1054: return %prog_state;
1055: }
1056:
1057: # update progress
1058: sub Update_PrgWin {
1059: my ($r,$prog_state,$displayString)=@_;
1060: &Apache::loncommon::LCprogressbarUpdate($r,undef,$displayString);
1061: $$prog_state{'laststart'}=&Time::HiRes::time();
1062: }
1063:
1064: # increment progress state
1065: sub Increment_PrgWin {
1066: my ($r,$prog_state,$extraInfo,$step)=@_;
1067: $step = $step > 0 ? $step : 1;
1068: $$prog_state{'done'} += $step;
1069:
1070: # Catch (max modulo step) <> 0
1071: my $current = $$prog_state{'done'};
1072: my $last = ($$prog_state{'max'} - $current);
1073: if ($last <= 0) {
1074: $last = 1;
1075: $current = $$prog_state{'max'};
1076: }
1077:
1078: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
1079: $current * $last;
1080: $time_est = int($time_est);
1081: #
1082: my $min = int($time_est/60);
1083: my $sec = $time_est % 60;
1084:
1085: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
1086: if ($lasttime > 9) {
1087: $lasttime = int($lasttime);
1088: } elsif ($lasttime < 0.01) {
1089: $lasttime = 0;
1090: } else {
1091: $lasttime = sprintf("%3.2f",$lasttime);
1092: }
1093:
1094: $sec = 0 if ($min >= 10); # Don't show seconds if remaining time >= 10 min.
1095: $sec = 1 if ( ($min == 0) && ($sec == 0) ); # Little cheating: pretend to have 1 second remaining instead of 0 to have something to display
1096:
1097: my $timeinfo =
1098: &mt('[_1]/[_2]:'
1099: .' [quant,_3,minute,minutes,] [quant,_4,second ,seconds ,]remaining'
1100: .' ([quant,_5,second] for '.$extraInfo.')',
1101: $current,
1102: $$prog_state{'max'},
1103: $min,
1104: $sec,
1105: $lasttime);
1106: my $percent=0;
1107: if ($$prog_state{'max'}) {
1108: $percent=int(100.*$current/$$prog_state{'max'});
1109: }
1110: &Apache::loncommon::LCprogressbarUpdate($r,$percent,$timeinfo);
1111: $$prog_state{'laststart'}=&Time::HiRes::time();
1112: }
1113:
1114: # close Progress Line
1115: sub Close_PrgWin {
1116: my ($r,$prog_state)=@_;
1117: &Apache::loncommon::LCprogressbarClose($r);
1118: undef(%$prog_state);
1119: }
1120:
1121:
1122: # ------------------------------------------------------- Puts directory header
1123:
1124: sub crumbs {
1125: my ($uri,$target,$prefix,$form,$skiplast)=@_;
1126: # You cannot crumbnify uploaded or adm resources
1127: if ($uri=~/^\/*(uploaded|adm)\//) { return &mt('(Internal Course/Group Content)'); }
1128: if ($target) {
1129: $target = ' target="'.
1130: &Apache::loncommon::escape_single($target).'"';
1131: }
1132: my $output='<span class="LC_filename">';
1133: $output.=$prefix.'/';
1134: if (($env{'user.adv'}) || ($env{'user.author'})) {
1135: my $path=$prefix.'/';
1136: foreach my $dir (split('/',$uri)) {
1137: if (! $dir) { next; }
1138: $path .= $dir;
1139: if ($path eq $uri) {
1140: if ($skiplast) {
1141: $output.=$dir;
1142: last;
1143: }
1144: } else {
1145: $path.='/';
1146: }
1147: my $href_path = &HTML::Entities::encode($path,'<>&"');
1148: &Apache::loncommon::inhibit_menu_check(\$href_path);
1149: if ($form) {
1150: my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
1151: $output.=qq{<a href="$href"$target>$dir</a>/};
1152: } else {
1153: $output.=qq{<a href="$href_path"$target>$dir</a>/};
1154: }
1155: }
1156: } else {
1157: foreach my $dir (split('/',$uri)) {
1158: if (! $dir) { next; }
1159: $output.=$dir.'/';
1160: }
1161: }
1162: if ($uri !~ m|/$|) { $output=~s|/$||; }
1163: $output.='</span>';
1164:
1165:
1166: return $output;
1167: }
1168:
1169: # --------------------- A function that generates a window for the spellchecker
1170:
1171: sub spellheader {
1172: my $start_page=
1173: &Apache::loncommon::start_page('Speller Suggestions',undef,
1174: {'only_body' => 1,
1175: 'js_ready' => 1,
1176: 'bgcolor' => '#DDDDDD',
1177: 'add_entries' => {
1178: 'onload' =>
1179: 'document.forms.spellcheckform.submit()',
1180: }
1181: });
1182: my $end_page=
1183: &Apache::loncommon::end_page({'js_ready' => 1});
1184:
1185: my $nothing=&javascript_nothing();
1186: return (<<ENDCHECK);
1187: <script type="text/javascript">
1188: // <![CDATA[
1189: //<!-- BEGIN LON-CAPA Internal
1190: var checkwin;
1191:
1192: function spellcheckerwindow(string) {
1193: var esc_string = string.replace(/\"/g,'"');
1194: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1195: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1196: checkwin.document.close();
1197: }
1198: // END LON-CAPA Internal -->
1199: // ]]>
1200: </script>
1201: ENDCHECK
1202: }
1203:
1204: # ---------------------------------- Generate link to spell checker for a field
1205:
1206: sub spelllink {
1207: my ($form,$field)=@_;
1208: my $linktext=&mt('Check Spelling');
1209: return (<<ENDLINK);
1210: <a href="javascript:if (typeof(document.$form.onsubmit)!='undefined') { if (document.$form.onsubmit!=null) { document.$form.onsubmit();}};spellcheckerwindow(this.document.forms.$form.$field.value);">$linktext</a>
1211: ENDLINK
1212: }
1213:
1214: # ------------------------------------------------- Output headers for CKEditor
1215:
1216: sub htmlareaheaders {
1217: my $s="";
1218: if (&htmlareabrowser()) {
1219: $s.=(<<ENDEDITOR);
1220: <script type="text/javascript" src="/ckeditor/ckeditor.js"></script>
1221: ENDEDITOR
1222: }
1223: $s.=(<<ENDJQUERY);
1224: <script type="text/javascript" src="/adm/jQuery/js/jquery-1.6.2.min.js"></script>
1225: <script type="text/javascript" src="/adm/jQuery/js/jquery-ui-1.8.16.custom.min.js"></script>
1226: <link rel="stylesheet" type="text/css" href="/adm/jQuery/css/smoothness/jquery-ui-1.8.16.custom.css" />
1227: <script type="text/javascript" src="/adm/jpicker/js/jpicker-1.1.6.min.js" >
1228: </script>
1229: <link rel="stylesheet" type="text/css" href="/adm/jpicker/css/jPicker-1.1.6.min.css" />
1230: <script type="text/javascript" src="/adm/countdown/js/jquery.countdown.min.js"></script>
1231: <link rel="stylesheet" type="text/css" href="/adm/countdown/css/jquery.countdown.css" />
1232:
1233: <script type="text/javascript" src="/adm/spellchecker/js/jquery.spellchecker.min.js"></script>
1234: <link rel="stylesheet" type="text/css" href="/adm/spellchecker/css/spellchecker.css" />
1235: <script type="text/javascript" src="/adm/nicescroll/jquery.nicescroll.min.js"></script>
1236:
1237: ENDJQUERY
1238: return $s;
1239: }
1240:
1241: # ----------------------------------------------------------------- Preferences
1242:
1243: # ------------------------------------------------- lang to use in html editor
1244: sub htmlarea_lang {
1245: my $lang='en';
1246: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1247: $lang=&mt('htmlarea_lang');
1248: }
1249: return $lang;
1250: }
1251:
1252: # return javacsript to activate elements of .colorchooser with jpicker:
1253: # Caller is responsible for enclosing this in <script> tags:
1254: #
1255: sub color_picker {
1256: return '
1257: $(document).ready(function(){
1258: $.fn.jPicker.defaults.images.clientPath="/adm/jpicker/images/";
1259: $(".colorchooser").jPicker({window: { position: {x: "screenCenter", y: "bottom"}}});
1260: });';
1261: }
1262:
1263: # ----------------------------------------- Script to activate only some fields
1264:
1265: sub htmlareaselectactive {
1266: my ($args) = @_;
1267: unless (&htmlareabrowser()) { return ''; }
1268: my $output='<script type="text/javascript" defer="defer">'."\n"
1269: .'// <![CDATA['."\n"
1270: .'//<!-- BEGIN LON-CAPA Internal'."\n";
1271: my $lang = &htmlarea_lang();
1272: my $fullpage = 'false';
1273: my ($dragmath_prefix,$dragmath_helpicon,$dragmath_whitespace);
1274: if (ref($args) eq 'HASH') {
1275: if (exists($args->{'lang'})) {
1276: if ($args->{'lang'} ne '') {
1277: $lang = $args->{'lang'};
1278: }
1279: }
1280: if (exists($args->{'fullpage'})) {
1281: if ($args->{'fullpage'} eq 'true') {
1282: $fullpage = $args->{'fullpage'};
1283: }
1284: }
1285: if (exists($args->{'dragmath'})) {
1286: if ($args->{'dragmath'} ne '') {
1287: $dragmath_prefix = $args->{'dragmath'};
1288: $dragmath_helpicon=&Apache::loncommon::lonhttpdurl("/adm/help/help.png");
1289: $dragmath_whitespace=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/transparent1x1.gif");
1290: }
1291: }
1292: }
1293:
1294: my %lt = &Apache::lonlocal::texthash(
1295: 'plain' => 'Plain text',
1296: 'rich' => 'Rich formatting',
1297: 'plain_title' => 'Disable rich text formatting and edit in plain text',
1298: 'rich_title' => 'Enable rich text formatting (bold, italic, etc.)',
1299: );
1300:
1301: $output.='
1302:
1303: function containsBlockHtml(id) {
1304: 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);
1305: return (re >= 0);
1306: }
1307:
1308: function startRichEditor(id) {
1309: CKEDITOR.replace(id,
1310: {
1311: customConfig: "/ckeditor/loncapaconfig.js",
1312: language : "'.$lang.'",
1313: fullPage : '.$fullpage.',
1314: }
1315: );
1316: }
1317:
1318: function destroyRichEditor(id) {
1319: CKEDITOR.instances[id].destroy();
1320: }
1321:
1322: function editorHandler(event) {
1323: var rawid = $(this).attr("id");
1324: var id = new RegExp("LC_rt_(.*)").exec(rawid)[1];
1325: event.preventDefault();
1326: var rt_enabled = $(this).hasClass("LC_enable_rt");
1327: if (rt_enabled) {
1328: startRichEditor(id);
1329: $("#LC_rt_"+id).html("<b>« '.$lt{'plain'}.'</b>");
1330: $("#LC_rt_"+id).attr("title", "'.$lt{'plain_title'}.'");
1331: $("#LC_rt_"+id).addClass("LC_disable_rt");
1332: $("#LC_rt_"+id).removeClass("LC_enable_rt");
1333: } else {
1334: destroyRichEditor(id);
1335: $("#LC_rt_"+id).html("<b>'.$lt{'rich'}.' »</b>");
1336: $("#LC_rt_"+id).attr("title", "'.$lt{'rich_title'}.'");
1337: $("#LC_rt_"+id).addClass("LC_enable_rt");
1338: $("#LC_rt_"+id).removeClass("LC_disable_rt");
1339: }';
1340: if ($dragmath_prefix ne '') {
1341: $output .= "\n var visible = '';
1342: if (rt_enabled) {
1343: visible = 'none';
1344: }
1345: editmath_visibility(id,visible);\n";
1346: }
1347: $output .= '
1348: }
1349: $(document).ready(function(){
1350: $(".LC_richAlwaysOn").each(function() {
1351: startRichEditor($(this).attr("id"));
1352: });
1353: $(".LC_richDetectHtml").each(function() {
1354: var id = $(this).attr("id");
1355: var rt_enabled = containsBlockHtml(id);
1356: if(rt_enabled) {
1357: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'plain_title'}.'\" class=\"LC_disable_rt\"><b>« '.$lt{'plain'}.'</b></a></div>");
1358: startRichEditor(id);
1359: $("#LC_rt_"+id).click(editorHandler);
1360: }
1361: else {
1362: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'rich_title'}.'\" class=\"LC_enable_rt\"><b>'.$lt{'rich'}.' »</b></a></div>");
1363: $("#LC_rt_"+id).click(editorHandler);
1364: }';
1365: if ($dragmath_prefix ne '') {
1366: $output .= "\n var visible = '';
1367: if (rt_enabled) {
1368: visible = 'none';
1369: }
1370: editmath_visibility(id,visible);\n";
1371: }
1372: $output .= '
1373: });
1374: $(".LC_richDefaultOn").each(function() {
1375: var id = $(this).attr("id");
1376: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'plain_title'}.'\" class=\"LC_disable_rt\"><b>« '.$lt{'plain'}.'</b></a></div>");
1377: startRichEditor(id);
1378: $("#LC_rt_"+id).click(editorHandler);
1379: });
1380: $(".LC_richDefaultOff").each(function() {
1381: var id = $(this).attr("id");
1382: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'rich_title'}.'\" class=\"LC_enable_rt\"><b>'.$lt{'rich'}.' »</b></a></div>");
1383: $("#LC_rt_"+id).click(editorHandler);
1384: });
1385:
1386:
1387: });
1388: ';
1389: $output .= &color_picker;
1390:
1391: # Code to put a due date countdown in 'duedatecountdown' span.
1392: # This is currently located in the breadcrumb headers.
1393: # note that the dueDateLayout is internatinoalized below.
1394: # Here document is used to support the substitution into the javascript below.
1395: # ..which unforunately necessitates escaping the $'s in the javascript.
1396: # There are several times of importance
1397: #
1398: # serverDueDate - The absolute time at which the problem expires.
1399: # serverTime - The server's time when the problem finished computing.
1400: # clientTime - The client's time...as close to serverTime as possible.
1401: # The clientTime will be slightly later due to
1402: # 1. The latency between problem computation and
1403: # the first network action.
1404: # 2. The time required between the page load-start and the actual
1405: # initial javascript execution that got clientTime.
1406: # These are used as follows:
1407: # The difference between clientTime and serverTime are used to
1408: # correct for differences in clock settings between the browser's system and the
1409: # server's.
1410: #
1411: # The difference between clientTime and the time at which the ready() method
1412: # starts executing is used to estimate latencies for page load and submission.
1413: # Since this is an estimate, it is doubled. The latency estimate + one minute
1414: # is used to determine when the countdown timer turns red to warn the user
1415: # to think about submitting.
1416:
1417: my $dueDateLayout = &mt('Due in: {dn} {dl} {hnn}{sep}{mnn}{sep}{snn} [_1]',
1418: "<span id='submitearly'></span>");
1419: my $early = '- <b>'.&mt('Submit Early').'</b>';
1420: my $pastdue = '- <b>'.&mt('Past Due').'</b>';
1421: $output .= <<JAVASCRIPT;
1422:
1423: var documentReadyTime;
1424:
1425: \$(document).ready(function() {
1426: if (typeof(dueDate) != "undefined") {
1427: documentReadyTime = (new Date()).getTime();
1428: \$("#duedatecountdown").countdown({until: dueDate, compact: true,
1429: layout: "$dueDateLayout",
1430: onTick: function (periods) {
1431: var latencyEstimate = (documentReadyTime - clientTime) * 2;
1432: if(\$.countdown.periodsToSeconds(periods) < (300 + latencyEstimate)) {
1433: \$("#submitearly").html("$early");
1434: if (\$.countdown.periodsToSeconds(periods) < 1) {
1435: \$("#submitearly").html("$pastdue");
1436: }
1437: }
1438: if(\$.countdown.periodsToSeconds(periods) < (60 + latencyEstimate)) {
1439: \$(this).css("color", "red"); //Highlight last minute.
1440: }
1441: }
1442: });
1443: }
1444: });
1445:
1446: /* This code describes the spellcheck options that will be used for
1447: items with class 'spellchecked'. It is necessary for those objects'
1448: to explicitly request checking (e.g. onblur is a nice event for that).
1449: */
1450: \$(document).ready(function() {
1451: \$(".spellchecked").spellchecker({
1452: url: "/ajax/spellcheck",
1453: lang: "en",
1454: engine: "pspell",
1455: suggestionBoxPosition: "below",
1456: innerDocument: true
1457: });
1458: \$("textarea.spellchecked").spellchecker({
1459: url: "/ajax/spellcheck",
1460: lang: "en",
1461: engine: "pspell",
1462: suggestionBoxPosition: "below",
1463: innerDocument: true
1464: });
1465:
1466: });
1467:
1468: /* the muli colored editor can generate spellcheck with language 'none'
1469: to disable spellcheck as well
1470: */
1471: function doSpellcheck(element, lang) {
1472: if (lang != 'none') {
1473: \$(element).spellchecker('option', {lang: lang});
1474: \$(element).spellchecker('check');
1475: }
1476: }
1477:
1478:
1479: JAVASCRIPT
1480: if ($dragmath_prefix ne '') {
1481: $output .= '
1482:
1483: function editmath_visibility(id,value) {
1484:
1485: if ((id == "") || (id == null)) {
1486: return;
1487: }
1488: var mathid = "'.$dragmath_prefix.'_"+id;
1489: mathele = document.getElementById(mathid);
1490: if (mathele == null) {
1491: return;
1492: }
1493: mathele.style.display = value;
1494: var mathhelpicon = "'.$dragmath_prefix.'helpicon'.'_"+id;
1495: mathhelpiconele = document.getElementById(mathhelpicon);
1496: if (mathhelpiconele == null) {
1497: return;
1498: }
1499: if (value == "none") {
1500: mathhelpiconele.src = "'.$dragmath_whitespace.'";
1501: } else {
1502: mathhelpiconele.src = "'.$dragmath_helpicon.'";
1503: }
1504: }
1505: ';
1506:
1507: }
1508: $output.="\nwindow.status='Activated Editfields';\n"
1509: .'// END LON-CAPA Internal -->'."\n"
1510: .'// ]]>'."\n"
1511: .'</script>';
1512: return $output;
1513: }
1514:
1515: # --------------------------------------------------------------------- Blocked
1516:
1517: sub htmlareablocked {
1518: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1519: return 0;
1520: }
1521:
1522: # ---------------------------------------- Browser capable of running HTMLArea?
1523:
1524: sub htmlareabrowser {
1525: return 1;
1526: }
1527:
1528: #
1529: # Should the "return to content" link be shown?
1530: #
1531:
1532: sub show_return_link {
1533:
1534: unless ($env{'request.course.id'}) { return 0; }
1535: if ($env{'request.noversionuri'}=~m{^/priv/} ||
1536: $env{'request.uri'}=~m{^/priv/}) { return 1; }
1537: return if ($env{'request.noversionuri'} eq '/adm/supplemental');
1538:
1539: if (($env{'request.noversionuri'} =~ m{^/adm/(viewclasslist|navmaps)($|\?)})
1540: || ($env{'request.noversionuri'} =~ m{^/adm/.*/aboutme($|\?)})) {
1541:
1542: return if ($env{'form.register'});
1543: }
1544: return (($env{'request.noversionuri'}=~m{^/(res|public)/} &&
1545: $env{'request.symb'} eq '')
1546: ||
1547: ($env{'request.noversionuri'}=~ m{^/cgi-bin/printout.pl})
1548: ||
1549: (($env{'request.noversionuri'}=~/^\/adm\//) &&
1550: ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
1551: ($env{'request.noversionuri'}!~
1552: m{^/adm/.*/(smppg|bulletinboard)($|\?)})
1553: ));
1554: }
1555:
1556:
1557: ##
1558: # Set the dueDate variable...note this is done in the timezone
1559: # of the browser.
1560: #
1561: # @param epoch relative time at which the problem is due.
1562: #
1563: # @return the javascript fragment to set the date:
1564: #
1565: sub set_due_date {
1566: my $dueStamp = shift;
1567: my $duems = $dueStamp * 1000; # Javascript Date object needs ms not seconds.
1568:
1569: my $now = time()*1000;
1570:
1571: # This slightly obscure bit of javascript sets the dueDate variable
1572: # to the time in the browser at which the problem was due.
1573: # The code should correct for gross differences between the server
1574: # and client's time setting
1575:
1576: return <<"END";
1577:
1578: <script type="text/javascript">
1579: //<![CDATA[
1580: var serverDueDate = $duems;
1581: var serverTime = $now;
1582: var clientTime = (new Date()).getTime();
1583: var dueDate = new Date(serverDueDate + (clientTime - serverTime));
1584:
1585: //]]>
1586: </script>
1587:
1588: END
1589: }
1590: ##
1591: # Sets the time at which the problem finished computing.
1592: # This just updates the serverTime and clientTime variables above.
1593: # Calling this in e.g. end_problem provides a better estimate of the
1594: # difference beetween the server and client time setting as
1595: # the difference contains less of the latency/problem compute time.
1596: #
1597: sub set_compute_end_time {
1598:
1599: my $now = time()*1000; # Javascript times are in ms.
1600: return <<"END";
1601:
1602: <script type="text/javascript">
1603: //<![CDATA[
1604: serverTime = $now;
1605: clientTime = (new Date()).getTime();
1606: //]]>
1607: </script>
1608:
1609: END
1610: }
1611:
1612: ############################################################
1613: ############################################################
1614:
1615: =pod
1616:
1617: =item &breadcrumbs()
1618:
1619: Compiles the previously registered breadcrumbs into an series of links.
1620: Additionally supports a 'component', which will be displayed on the
1621: right side of the breadcrumbs enclosing div (without a link).
1622: A link to help for the component will be included if one is specified.
1623:
1624: All inputs can be undef without problems.
1625:
1626: Inputs: $component (the text on the right side of the breadcrumbs trail),
1627: $component_help
1628: $menulink (boolean, controls whether to include a link to /adm/menu)
1629: $helplink (if 'nohelp' don't include the orange help link)
1630: $css_class (optional name for the class to apply to the table for CSS)
1631: $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
1632: when including the text on the right.
1633: Returns a string containing breadcrumbs for the current page.
1634:
1635: =item &clear_breadcrumbs()
1636:
1637: Clears the previously stored breadcrumbs.
1638:
1639: =item &add_breadcrumb()
1640:
1641: Pushes a breadcrumb on the stack of crumbs.
1642:
1643: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1644: are required. If present the keys 'faq' and 'bug' will be used to provide
1645: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title'
1646: and 'text' values won't be sent through &mt()
1647:
1648: returns: nothing
1649:
1650: =cut
1651:
1652: ############################################################
1653: ############################################################
1654: {
1655: my @Crumbs;
1656: my %tools = ();
1657:
1658: sub breadcrumbs {
1659: my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt,
1660: $CourseBreadcrumbs) = @_;
1661: #
1662: $css_class ||= 'LC_breadcrumbs';
1663:
1664: # Make the faq and bug data cascade
1665: my $faq = '';
1666: my $bug = '';
1667: my $help = '';
1668: # Crumb Symbol
1669: my $crumbsymbol = '»';
1670: # The last breadcrumb does not have a link, so handle it separately.
1671: my $last = pop(@Crumbs);
1672: #
1673: # The first one should be the course or a menu link
1674: if (!defined($menulink)) { $menulink=1; }
1675: if ($menulink) {
1676: my $description = 'Menu';
1677: my $no_mt_descr = 0;
1678: if ((exists($env{'request.course.id'})) &&
1679: ($env{'request.course.id'} ne '') &&
1680: ($env{'course.'.$env{'request.course.id'}.'.description'} ne '')) {
1681: $description =
1682: $env{'course.'.$env{'request.course.id'}.'.description'};
1683: $no_mt_descr = 1;
1684: if ($env{'request.noversionuri'} =~
1685: m{^/public/($match_domain)/($match_courseid)/syllabus$}) {
1686: unless (($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1) &&
1687: ($env{'course.'.$env{'request.course.id'}.'.num'} eq $2)) {
1688: $description = 'Menu';
1689: $no_mt_descr = 0;
1690: }
1691: }
1692: }
1693: $menulink = { href =>'/adm/menu',
1694: title =>'Go to main menu',
1695: target =>'_top',
1696: text =>$description,
1697: no_mt =>$no_mt_descr, };
1698: if($last) {
1699: #$last set, so we have some crumbs
1700: unshift(@Crumbs,$menulink);
1701: } else {
1702: #only menulink crumb present
1703: $last = $menulink;
1704: }
1705: }
1706: my $links;
1707: if ((&show_return_link) && (!$CourseBreadcrumbs) && (ref($last) eq 'HASH')) {
1708: my $alttext = &mt('Go Back');
1709: my $hashref = { href => '/adm/flip?postdata=return:',
1710: title => &mt('Back to most recent content resource'),
1711: class => 'LC_menubuttons_link',
1712: };
1713: if ($env{'request.noversionuri'} eq '/adm/searchcat') {
1714: $hashref->{'target'} = '_top';
1715: }
1716: $links=&htmltag( 'a','<img src="/res/adm/pages/tolastloc.png" alt="'.$alttext.'" class="LC_icon" />',
1717: $hashref);
1718: $links=&htmltag('li',$links);
1719: }
1720: $links.= join "",
1721: map {
1722: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1723: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1724: $help = $_->{'help'} if (exists($_->{'help'}));
1725:
1726: my $result = $_->{no_mt} ? $_->{text} : &mt($_->{text});
1727:
1728: if ($_->{href}){
1729: $result = &htmltag( 'a', $result,
1730: { href => $_->{href},
1731: title => $_->{no_mt} ? $_->{title} : &mt($_->{title}),
1732: target => $_->{target}, });
1733: }
1734:
1735: $result = &htmltag( 'li', "$result $crumbsymbol");
1736: } @Crumbs;
1737:
1738: #should the last Element be translated?
1739:
1740: my $lasttext = $last->{'no_mt'} ? $last->{'text'}
1741: : mt( $last->{'text'} );
1742:
1743: # last breadcrumb is the first order heading of a page
1744: # for course breadcrumbs it's just bold
1745:
1746: if ($lasttext ne '') {
1747: $links .= &htmltag( 'li', htmltag($CourseBreadcrumbs ? 'b' : 'h1',
1748: $lasttext), {title => $lasttext});
1749: }
1750:
1751: my $icons = '';
1752: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1753: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1754: $help = $last->{'help'} if (exists($last->{'help'}));
1755: $component_help=($component_help?$component_help:$help);
1756: # if ($faq ne '') {
1757: # $icons .= &Apache::loncommon::help_open_faq($faq);
1758: # }
1759: # if ($bug ne '') {
1760: # $icons .= &Apache::loncommon::help_open_bug($bug);
1761: # }
1762: if ($faq ne '' || $component_help ne '' || $bug ne '') {
1763: $icons .= &Apache::loncommon::help_open_menu($component,
1764: $component_help,
1765: $faq,$bug);
1766: }
1767: #
1768:
1769:
1770: if ($links ne '') {
1771: unless ($CourseBreadcrumbs) {
1772: $links = &htmltag('ol', $links, { id => "LC_MenuBreadcrumbs" });
1773: } else {
1774: $links = &htmltag('ul', $links, { class => "LC_CourseBreadcrumbs" });
1775: }
1776: }
1777:
1778:
1779: if ($component) {
1780: $links = &htmltag('span',
1781: ( $no_mt ? $component : mt($component) ).
1782: ( $icons ? $icons : '' ),
1783: { class => 'LC_breadcrumbs_component' } )
1784: .$links
1785: ;
1786: }
1787: my $nav_and_tools = 0;
1788: foreach my $item ('navigation','tools') {
1789: if (ref($tools{$item}) eq 'ARRAY') {
1790: $nav_and_tools += scalar(@{$tools{$item}})
1791: }
1792: }
1793: if (($links ne '') || ($nav_and_tools)) {
1794: &render_tools(\$links);
1795: $links = &htmltag('div', $links,
1796: { id => "LC_breadcrumbs" }) unless ($CourseBreadcrumbs) ;
1797: }
1798: my $adv_tools = 0;
1799: if (ref($tools{'advtools'}) eq 'ARRAY') {
1800: $adv_tools = scalar(@{$tools{'advtools'}});
1801: }
1802: if (($links ne '') || ($adv_tools)) {
1803: &render_advtools(\$links);
1804: }
1805:
1806: # Return the @Crumbs stack to what we started with
1807: push(@Crumbs,$last);
1808: shift(@Crumbs);
1809:
1810:
1811: # Return the breadcrumb's line
1812:
1813:
1814:
1815: return "$links";
1816: }
1817:
1818: sub clear_breadcrumbs {
1819: undef(@Crumbs);
1820: undef(%tools);
1821: }
1822:
1823: sub add_breadcrumb {
1824: push(@Crumbs,@_);
1825: }
1826:
1827: =item &add_breadcrumb_tool($category, $html)
1828:
1829: Adds $html to $category of the breadcrumb toolbar container.
1830:
1831: $html is usually a link to a page that invokes a function on the currently
1832: displayed data (e.g. print when viewing a problem)
1833:
1834: Currently there are 3 possible values for $category:
1835:
1836: =over
1837:
1838: =item navigation
1839: left of breadcrumbs line
1840:
1841: =item tools
1842: remaining items in right of breadcrumbs line
1843:
1844: =item advtools
1845: advanced tools shown in a separate box below breadcrumbs line
1846:
1847: =back
1848:
1849: returns: nothing
1850:
1851: =cut
1852:
1853: sub add_breadcrumb_tool {
1854: my ($category, @html) = @_;
1855: return unless @html;
1856: if (!keys(%tools)) {
1857: %tools = ( navigation => [], tools => [], advtools => []);
1858: }
1859:
1860: #this cleans data received from lonmenu::innerregister
1861: @html = grep {defined $_ && $_ ne ''} @html;
1862: for (@html) {
1863: s/align="(right|left)"//;
1864: # s/<span.*?\/span>// if $category ne 'advtools';
1865: }
1866:
1867: push @{$tools{$category}}, @html;
1868: }
1869:
1870: =item &clear_breadcrumb_tools()
1871:
1872: Clears the breadcrumb toolbar container.
1873:
1874: returns: nothing
1875:
1876: =cut
1877:
1878: sub clear_breadcrumb_tools {
1879: undef(%tools);
1880: }
1881:
1882: =item &render_tools(\$breadcrumbs)
1883:
1884: Creates html for breadcrumb tools (categories navigation and tools) and inserts
1885: \$breadcrumbs at the correct position.
1886:
1887: input: \$breadcrumbs - a reference to the string containing prepared
1888: breadcrumbs.
1889:
1890: returns: nothing
1891:
1892: =cut
1893:
1894: #TODO might split this in separate functions for each category
1895: sub render_tools {
1896: my ($breadcrumbs) = @_;
1897: return unless (keys(%tools));
1898:
1899: my $navigation = list_from_array($tools{navigation},
1900: { listattr => { class=>"LC_breadcrumb_tools_navigation" } });
1901: my $tools = list_from_array($tools{tools},
1902: { listattr => { class=>"LC_breadcrumb_tools_tools" } });
1903: $$breadcrumbs = list_from_array([$navigation, $tools, $$breadcrumbs],
1904: { listattr => { class=>'LC_breadcrumb_tools_outerlist' } });
1905: }
1906:
1907: =pod
1908:
1909: =item &render_advtools(\$breadcrumbs)
1910:
1911: Creates html for advanced tools (category advtools) and inserts \$breadcrumbs
1912: at the correct position.
1913:
1914: input: \$breadcrumbs - a reference to the string containing prepared
1915: breadcrumbs (after render_tools call).
1916:
1917: returns: nothing
1918:
1919: =cut
1920:
1921: sub render_advtools {
1922: my ($breadcrumbs) = @_;
1923: return unless (defined $tools{'advtools'})
1924: and (scalar(@{$tools{'advtools'}}) > 0);
1925:
1926: $$breadcrumbs .= Apache::loncommon::head_subbox(
1927: funclist_from_array($tools{'advtools'}) );
1928: }
1929:
1930: } # End of scope for @Crumbs
1931:
1932: sub docs_breadcrumbs {
1933: my ($allowed,$crstype,$contenteditor,$title,$precleared)=@_;
1934: my ($folderpath,@folders,$supplementalflag);
1935: @folders = split('&',$env{'form.folderpath'});
1936: if ($env{'form.folderpath'} =~ /^supplemental/) {
1937: $supplementalflag = 1;
1938: }
1939: my $plain='';
1940: my $container = 'sequence';
1941: my ($randompick,$isencrypted,$ishidden,$is_random_order) = (-1,0,0,0);
1942: my @docs_crumbs;
1943: while (@folders) {
1944: my $folder=shift(@folders);
1945: my $foldername=shift(@folders);
1946: if ($folderpath) {$folderpath.='&';}
1947: $folderpath.=$folder.'&'.$foldername;
1948: my $url;
1949: if ($allowed) {
1950: $url = '/adm/coursedocs?folderpath=';
1951: } else {
1952: $url = '/adm/supplemental?folderpath=';
1953: }
1954: $url .= &escape($folderpath);
1955: my $name=&unescape($foldername);
1956: # each of randompick number, hidden, encrypted, random order, is_page
1957: # are appended with ":"s to the foldername
1958: $name=~s/\:(\d*)\:(\w*)\:(\w*):(\d*)\:?(\d*)$//;
1959: unless ($supplementalflag) {
1960: if ($contenteditor) {
1961: if ($1 ne '') {
1962: $randompick=$1;
1963: } else {
1964: $randompick=-1;
1965: }
1966: if ($2) { $ishidden=1; }
1967: if ($3) { $isencrypted=1; }
1968: if ($4 ne '') { $is_random_order = 1; }
1969: if ($5 == 1) {$container = 'page'; }
1970: }
1971: }
1972: if ($folder eq 'supplemental') {
1973: $name = &mt('Supplemental Content');
1974: }
1975: if ($contenteditor) {
1976: $plain.=$name.' > ';
1977: }
1978: push(@docs_crumbs,
1979: {'href' => $url,
1980: 'title' => $name,
1981: 'text' => $name,
1982: 'no_mt' => 1,
1983: });
1984: }
1985: if ($title) {
1986: push(@docs_crumbs,
1987: {'title' => $title,
1988: 'text' => $title,
1989: 'no_mt' => 1,}
1990: );
1991: }
1992: if (wantarray) {
1993: unless ($precleared) {
1994: &clear_breadcrumbs();
1995: }
1996: &add_breadcrumb(@docs_crumbs);
1997: if ($contenteditor) {
1998: $plain=~s/\>\;\s*$//;
1999: }
2000: my $menulink = 0;
2001: if (!$allowed && !$contenteditor) {
2002: $menulink = 1;
2003: }
2004: return (&breadcrumbs(undef,undef,$menulink,'nohelp',undef,undef,
2005: $contenteditor),
2006: $randompick,$ishidden,$isencrypted,$plain,
2007: $is_random_order,$container);
2008: } else {
2009: return \@docs_crumbs;
2010: }
2011: }
2012:
2013: ############################################################
2014: ############################################################
2015:
2016: # Nested table routines.
2017: #
2018: # Routines to display form items in a multi-row table with 2 columns.
2019: # Uses nested tables to divide form elements into segments.
2020: # For examples of use see loncom/interface/lonnotify.pm
2021: #
2022: # Can be used in following order: ...
2023: # &start_pick_box()
2024: # row1
2025: # row2
2026: # row3 ... etc.
2027: # &submit_row()
2028: # &end_pick_box()
2029: #
2030: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
2031: # &status_select_row and &email_default_row
2032: #
2033: # Can also be used in following order:
2034: #
2035: # &start_pick_box()
2036: # &row_title()
2037: # &row_closure()
2038: # &row_title()
2039: # &row_closure() ... etc.
2040: # &submit_row()
2041: # &end_pick_box()
2042: #
2043: # In general a &submit_row() call should proceed the call to &end_pick_box(),
2044: # as this routine adds a button for form submission.
2045: # &submit_row() does not require a &row_closure after it.
2046: #
2047: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
2048: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
2049: #
2050: # &row_title() adds a title in the left column for each segment.
2051: # &row_closure() closes a row with a 1-pixel wide black line.
2052: #
2053: # &role_select_row() provides a select box from which to choose 1 or more roles
2054: # &course_select_row provides ways of picking groups of courses
2055: # radio buttons: all, by category or by picking from a course picker pop-up
2056: # note: by category option is only displayed if a domain has implemented
2057: # selection by year, semester, department, number etc.
2058: #
2059: # &status_select_row() provides a select box from which to choose 1 or more
2060: # access types (current access, prior access, and future access)
2061: #
2062: # &email_default_row() provides text boxes for default e-mail suffixes for
2063: # different authentication types in a domain.
2064: #
2065: # &row_title() and &row_closure() are called internally by the &*_select_row
2066: # routines, but can also be called directly to start and end rows which have
2067: # needs that are not accommodated by the *_select_row() routines.
2068:
2069: { # Start: row_count block for pick_box
2070: my @row_count;
2071:
2072: sub start_pick_box {
2073: my ($css_class,$id) = @_;
2074: if (defined($css_class)) {
2075: $css_class = 'class="'.$css_class.'"';
2076: } else {
2077: $css_class= 'class="LC_pick_box"';
2078: }
2079: my $table_id;
2080: if (defined($id)) {
2081: $table_id = ' id="'.$id.'"';
2082: }
2083: unshift(@row_count,0);
2084: my $output = <<"END";
2085: <table $css_class $table_id>
2086: END
2087: return $output;
2088: }
2089:
2090: sub end_pick_box {
2091: shift(@row_count);
2092: my $output = <<"END";
2093: </table>
2094: END
2095: return $output;
2096: }
2097:
2098: sub row_headline {
2099: my $output = <<"END";
2100: <tr><td colspan="2">
2101: END
2102: return $output;
2103: }
2104:
2105: sub row_title {
2106: my ($title,$css_title_class,$css_value_class, $css_value_furtherAttributes) = @_;
2107: $row_count[0]++;
2108: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
2109: $css_title_class ||= 'LC_pick_box_title';
2110: $css_title_class = 'class="'.$css_title_class.'"';
2111:
2112: $css_value_class ||= 'LC_pick_box_value';
2113:
2114: if ($title ne '') {
2115: $title .= ':';
2116: }
2117: my $output = <<"ENDONE";
2118: <tr class="LC_pick_box_row" $css_value_furtherAttributes>
2119: <td $css_title_class>
2120: $title
2121: </td>
2122: <td class="$css_value_class $css_class">
2123: ENDONE
2124: return $output;
2125: }
2126:
2127: sub row_closure {
2128: my ($no_separator) =@_;
2129: my $output = <<"ENDTWO";
2130: </td>
2131: </tr>
2132: ENDTWO
2133: if (!$no_separator) {
2134: $output .= <<"ENDTWO";
2135: <tr>
2136: <td colspan="2" class="LC_pick_box_separator">
2137: </td>
2138: </tr>
2139: ENDTWO
2140: }
2141: return $output;
2142: }
2143:
2144: } # End: row_count block for pick_box
2145:
2146: sub role_select_row {
2147: my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
2148: my $crstype = 'Course';
2149: if ($cdom ne '' && $cnum ne '') {
2150: $crstype = &Apache::loncommon::course_type($cdom.'_'.$cnum);
2151: }
2152: my $output;
2153: if (defined($title)) {
2154: $output = &row_title($title,$css_class);
2155: }
2156: $output .= qq|
2157: <select name="roles" multiple="multiple">\n|;
2158: foreach my $role (@$roles) {
2159: my $plrole;
2160: if ($role eq 'ow') {
2161: $plrole = &mt('Course Owner');
2162: } elsif ($role eq 'cr') {
2163: if ($show_separate_custom) {
2164: if ($cdom ne '' && $cnum ne '') {
2165: my %course_customroles = &course_custom_roles($cdom,$cnum);
2166: foreach my $crrole (sort(keys(%course_customroles))) {
2167: my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
2168: $output .= ' <option value="'.$crrole.'">'.$plcrrole.
2169: '</option>';
2170: }
2171: }
2172: } else {
2173: $plrole = &mt('Custom Role');
2174: }
2175: } else {
2176: $plrole=&Apache::lonnet::plaintext($role,$crstype);
2177: }
2178: if (($role ne 'cr') || (!$show_separate_custom)) {
2179: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
2180: }
2181: }
2182: $output .= qq| </select>\n|;
2183: if (defined($title)) {
2184: $output .= &row_closure();
2185: }
2186: return $output;
2187: }
2188:
2189: sub course_select_row {
2190: my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
2191: $css_class,$crstype,$standardnames) = @_;
2192: my $output = &row_title($title,$css_class);
2193: $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames);
2194: $output .= &row_closure();
2195: return $output;
2196: }
2197:
2198: sub course_selection {
2199: my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames) = @_;
2200: my $output = qq|
2201: <script type="text/javascript">
2202: // <![CDATA[
2203: function coursePick (formname) {
2204: for (var i=0; i<formname.coursepick.length; i++) {
2205: if (formname.coursepick[i].value == 'category') {
2206: courseSet('');
2207: }
2208: if (!formname.coursepick[i].checked) {
2209: if (formname.coursepick[i].value == 'specific') {
2210: formname.coursetotal.value = 0;
2211: formname.courselist = '';
2212: }
2213: }
2214: }
2215: }
2216: function setPick (formname) {
2217: for (var i=0; i<formname.coursepick.length; i++) {
2218: if (formname.coursepick[i].value == 'category') {
2219: formname.coursepick[i].checked = true;
2220: }
2221: formname.coursetotal.value = 0;
2222: formname.courselist = '';
2223: }
2224: }
2225: // ]]>
2226: </script>
2227: |;
2228:
2229: my ($allcrs,$pickspec);
2230: if ($crstype eq 'Community') {
2231: $allcrs = &mt('All communities');
2232: $pickspec = &mt('Pick specific communities:');
2233: } else {
2234: $allcrs = &mt('All courses');
2235: $pickspec = &mt('Pick specific course(s):');
2236: }
2237:
2238: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
2239: ($formname,'pickcourse','pickdomain','coursedesc','',1,$crstype).'</b>';
2240: $output .= '<label><input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.$allcrs.'</label><br />';
2241: if ($totcodes > 0) {
2242: my $numtitles = @$codetitles;
2243: if ($numtitles > 0) {
2244: $output .= '<label><input type="radio" name="coursepick" value="category" onclick="coursePick(this.form);alert('."'".&mt('Choose categories, from left to right')."'".')" />'.&mt('Pick courses by category:').'</label><br />';
2245: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
2246: '<select name="'.$standardnames->[0].
2247: '" onchange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
2248: ' <option value="-1" />Select'."\n";
2249: my @items = ();
2250: my @longitems = ();
2251: if ($$idlist{$$codetitles[0]} =~ /","/) {
2252: @items = split(/","/,$$idlist{$$codetitles[0]});
2253: } else {
2254: $items[0] = $$idlist{$$codetitles[0]};
2255: }
2256: if (defined($$idlist_titles{$$codetitles[0]})) {
2257: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
2258: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
2259: } else {
2260: $longitems[0] = $$idlist_titles{$$codetitles[0]};
2261: }
2262: for (my $i=0; $i<@longitems; $i++) {
2263: if ($longitems[$i] eq '') {
2264: $longitems[$i] = $items[$i];
2265: }
2266: }
2267: } else {
2268: @longitems = @items;
2269: }
2270: for (my $i=0; $i<@items; $i++) {
2271: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
2272: }
2273: $output .= '</select></td>';
2274: for (my $i=1; $i<$numtitles; $i++) {
2275: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
2276: '<select name="'.$standardnames->[$i].
2277: '" onchange="courseSet('."'$$codetitles[$i]'".')">'."\n".
2278: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
2279: '</select>'."\n".
2280: '</td>';
2281: }
2282: $output .= '</tr></table><br />';
2283: }
2284: }
2285: $output .=
2286: '<label><input type="radio" name="coursepick" value="specific"'
2287: .' onclick="coursePick(this.form);opencrsbrowser('."'".$formname."','dccourse','dcdomain','coursedesc','','1','$crstype'".')" />'
2288: .$pickspec.'</label>'
2289: .' '.$courseform.' '
2290: .&mt('[_1] selected.',
2291: '<input type="text" value="0" size="4" name="coursetotal" readonly="readonly" />'
2292: .'<input type="hidden" name="courselist" value="" />')
2293: .'<br />'."\n";
2294: return $output;
2295: }
2296:
2297: sub status_select_row {
2298: my ($types,$title,$css_class) = @_;
2299: my $output;
2300: if (defined($title)) {
2301: $output = &row_title($title,$css_class,'LC_pick_box_select');
2302: }
2303: $output .= qq|
2304: <select name="types" multiple="multiple">\n|;
2305: foreach my $status_type (sort(keys(%{$types}))) {
2306: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
2307: }
2308: $output .= qq| </select>\n|;
2309: if (defined($title)) {
2310: $output .= &row_closure();
2311: }
2312: return $output;
2313: }
2314:
2315: sub email_default_row {
2316: my ($authtypes,$title,$descrip,$css_class) = @_;
2317: my $output = &row_title($title,$css_class);
2318: $output .= $descrip.
2319: &Apache::loncommon::start_data_table().
2320: &Apache::loncommon::start_data_table_header_row().
2321: '<th>'.&mt('Authentication Method').'</th>'.
2322: '<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
2323: &Apache::loncommon::end_data_table_header_row();
2324: my $rownum = 0;
2325: foreach my $auth (sort(keys(%{$authtypes}))) {
2326: my ($userentry,$size);
2327: if ($auth =~ /^krb/) {
2328: $userentry = '';
2329: $size = 25;
2330: } else {
2331: $userentry = 'username@';
2332: $size = 15;
2333: }
2334: $output .= &Apache::loncommon::start_data_table_row().
2335: '<td> '.$$authtypes{$auth}.'</td>'.
2336: '<td align="right">'.$userentry.
2337: '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
2338: &Apache::loncommon::end_data_table_row();
2339: }
2340: $output .= &Apache::loncommon::end_data_table();
2341: $output .= &row_closure();
2342: return $output;
2343: }
2344:
2345:
2346: sub submit_row {
2347: my ($title,$cmd,$submit_text,$css_class) = @_;
2348: my $output = &row_title($title,$css_class,'LC_pick_box_submit');
2349: $output .= qq|
2350: <br />
2351: <input type="hidden" name="command" value="$cmd" />
2352: <input type="submit" value="$submit_text"/>
2353: <br /><br />
2354: \n|;
2355: return $output;
2356: }
2357:
2358: sub course_custom_roles {
2359: my ($cdom,$cnum) = @_;
2360: my %returnhash=();
2361: my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
2362: foreach my $person (sort(keys(%coursepersonnel))) {
2363: my ($role) = ($person =~ /^([^:]+):/);
2364: my ($end,$start) = split(/:/,$coursepersonnel{$person});
2365: if ($end == -1 && $start == -1) {
2366: next;
2367: }
2368: if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
2369: $returnhash{$role} ++;
2370: }
2371: }
2372: return %returnhash;
2373: }
2374:
2375:
2376: sub resource_info_box {
2377: my ($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp)=@_;
2378: my $return='';
2379: if ($stuvcurrent ne '') {
2380: $return = '<div class="LC_left_float">';
2381: }
2382: if ($symb) {
2383: $return.=&Apache::loncommon::start_data_table();
2384: my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symb);
2385: my $folder=&Apache::lonnet::gettitle($map);
2386: $return.=&Apache::loncommon::start_data_table_row().
2387: '<th align="left">'.&mt('Folder:').'</th><td>'.$folder.'</td>'.
2388: &Apache::loncommon::end_data_table_row();
2389: unless ($onlyfolderflag) {
2390: $return.=&Apache::loncommon::start_data_table_row().
2391: '<th align="left">'.&mt('Resource:').'</th><td>'.&Apache::lonnet::gettitle($symb).'</td>'.
2392: &Apache::loncommon::end_data_table_row();
2393: }
2394: if ($stuvcurrent ne '') {
2395: $return .= &Apache::loncommon::start_data_table_row().
2396: '<th align="left">'.&mt("Student's current version:").'</th><td>'.$stuvcurrent.'</td>'.
2397: &Apache::loncommon::end_data_table_row();
2398: }
2399: if ($stuvdisp ne '') {
2400: $return .= &Apache::loncommon::start_data_table_row().
2401: '<th align="left">'.&mt("Student's version displayed:").'</th><td>'.$stuvdisp.'</td>'.
2402: &Apache::loncommon::end_data_table_row();
2403: }
2404: $return.=&Apache::loncommon::end_data_table();
2405: } else {
2406: $return='<p><span class="LC_error">'.&mt('No context provided.').'</span></p>';
2407: }
2408: if ($stuvcurrent ne '') {
2409: $return .= '</div>';
2410: }
2411: return $return;
2412: }
2413:
2414: # display_usage
2415: #
2416: # Generates a div containing a block, filled to show percentage of current quota used
2417: #
2418: # Quotas available for user portfolios, group portfolios, authoring spaces, and course
2419: # content stored directly within a course (i.e., excluding published content).
2420: #
2421:
2422: sub display_usage {
2423: my ($current_disk_usage,$disk_quota) = @_;
2424: my $usage = $current_disk_usage/1000;
2425: my $quota = $disk_quota/1000;
2426: my $percent;
2427: if ($disk_quota == 0) {
2428: $percent = 100.0;
2429: } else {
2430: $percent = 100*($current_disk_usage/$disk_quota);
2431: }
2432: $usage = sprintf("%.2f",$usage);
2433: $quota = sprintf("%.2f",$quota);
2434: $percent = sprintf("%.0f",$percent);
2435: my ($color,$cssclass);
2436: if ($percent <= 60) {
2437: $color = '#00A000';
2438: } elsif ($percent > 60 && $percent < 90) {
2439: $color = '#FFD300';
2440: $cssclass = 'class="LC_warning"';
2441: } elsif( $percent >= 90) {
2442: $color = '#FF0000';
2443: $cssclass = 'class="LC_error"';
2444: }
2445: my $prog_width = $percent;
2446: if ($prog_width > 100) {
2447: $prog_width = 100;
2448: }
2449: return '
2450: <div id="meter1" align="left" '.$cssclass.'>'.&mt('Currently using [_1] of the [_2] available.',$usage.' MB <span style="font-weight:bold;">('.$percent.'%)</span>',$quota.' MB')."\n".
2451: ' <div id="meter2" style="display:block; margin-top:5px; margin-bottom:5px; margin-left:0px; margin-right:0px; width:400px; border:1px solid #000000; height:10px;">'."\n".
2452: ' <div id="meter3" style="display:block; background-color:'.$color.'; width:'.$prog_width.'%; height:10px; color:#000000; margin:0px;"></div>'."\n".
2453: ' </div>'."\n".
2454: ' </div>';
2455: }
2456:
2457: ##############################################
2458: ##############################################
2459:
2460: # topic_bar
2461: #
2462: # Generates a div containing an (optional) number with a white background followed by a
2463: # title with a background color defined in the corresponding CSS: LC_topic_bar
2464: # Inputs:
2465: # 1. number to display.
2466: # If input for number is empty only the title will be displayed.
2467: # 2. title text to display.
2468: # 3. optional id for the <div>
2469: # Outputs - a scalar containing html mark-up for the div.
2470:
2471: sub topic_bar {
2472: my ($num,$title,$id) = @_;
2473: my $number = '';
2474: if ($num ne '') {
2475: $number = '<span>'.$num.'</span>';
2476: }
2477: if ($id ne '') {
2478: $id = 'id="'.$id.'"';
2479: }
2480: return '<div class="LC_topic_bar" '.$id.'>'.$number.$title.'</div>';
2481: }
2482:
2483: ##############################################
2484: ##############################################
2485: # echo_form_input
2486: #
2487: # Generates html markup to add form elements from the referrer page
2488: # as hidden form elements (values encoded) in the new page.
2489: #
2490: # Intended to support two types of use
2491: # (a) to allow backing up to earlier pages in a multi-page
2492: # form submission process using a breadcrumb trail.
2493: #
2494: # (b) to allow the current page to be reloaded with form elements
2495: # set on previous page to remain unchanged. An example would
2496: # be where the a page containing a dynamically-built table of data is
2497: # is to be redisplayed, with only the sort order of the data changed.
2498: #
2499: # Inputs:
2500: # 1. Reference to array of form elements in the submitted form on
2501: # the referrer page which are to be excluded from the echoed elements.
2502: #
2503: # 2. Reference to array of regular expressions, which if matched in the
2504: # name of the form element n the referrer page will be omitted from echo.
2505: #
2506: # Outputs: A scalar containing the html markup for the echoed form
2507: # elements (all as hidden elements, with values encoded).
2508:
2509:
2510: sub echo_form_input {
2511: my ($excluded,$regexps) = @_;
2512: my $output = '';
2513: foreach my $key (keys(%env)) {
2514: if ($key =~ /^form\.(.+)$/) {
2515: my $name = $1;
2516: my $match = 0;
2517: if (ref($excluded) eq 'ARRAY') {
2518: next if (grep(/^\Q$name\E$/,@{$excluded}));
2519: }
2520: if (ref($regexps) eq 'ARRAY') {
2521: if (@{$regexps} > 0) {
2522: foreach my $regexp (@{$regexps}) {
2523: if ($name =~ /$regexp/) {
2524: $match = 1;
2525: last;
2526: }
2527: }
2528: }
2529: }
2530: next if ($match);
2531: if (ref($env{$key}) eq 'ARRAY') {
2532: foreach my $value (@{$env{$key}}) {
2533: $value = &HTML::Entities::encode($value,'<>&"');
2534: $output .= '<input type="hidden" name="'.$name.
2535: '" value="'.$value.'" />'."\n";
2536: }
2537: } else {
2538: my $value = &HTML::Entities::encode($env{$key},'<>&"');
2539: $output .= '<input type="hidden" name="'.$name.
2540: '" value="'.$value.'" />'."\n";
2541: }
2542: }
2543: }
2544: return $output;
2545: }
2546:
2547: ##############################################
2548: ##############################################
2549: # set_form_elements
2550: #
2551: # Generates javascript to set form elements to values based on
2552: # corresponding values for the same form elements when the page was
2553: # previously submitted.
2554: #
2555: # Last submission values are read from hidden form elements in referring
2556: # page which have the same name, i.e., generated by &echo_form_input().
2557: #
2558: # Intended to be called by onload event.
2559: #
2560: # Inputs:
2561: # (a) Reference to hash of echoed form elements to be set.
2562: #
2563: # In the hash, keys are the form element names, and the values are the
2564: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
2565: # hidden).
2566: #
2567: # (b) Optional reference to hash of stored elements to be set.
2568: #
2569: # If the page being displayed is a page which permits modification of
2570: # previously stored data, e.g., the first page in a multi-page submission,
2571: # then if stored is supplied, form elements will be set to the last stored
2572: # values. If user supplied values are also available for the same elements
2573: # these will replace the stored values.
2574: #
2575: # Output:
2576: #
2577: # javascript function - set_form_elements() which sets form elements,
2578: # expects an argument: formname - the name of the form according to
2579: # the DOM, e.g., document.compose
2580:
2581: sub set_form_elements {
2582: my ($elements,$stored) = @_;
2583: my %values;
2584: my $output .= 'function setFormElements(courseForm) {
2585: ';
2586: if (defined($stored)) {
2587: foreach my $name (keys(%{$stored})) {
2588: if (exists($$elements{$name})) {
2589: if (ref($$stored{$name}) eq 'ARRAY') {
2590: $values{$name} = $$stored{$name};
2591: } else {
2592: @{$values{$name}} = ($$stored{$name});
2593: }
2594: }
2595: }
2596: }
2597:
2598: foreach my $key (keys(%env)) {
2599: if ($key =~ /^form\.(.+)$/) {
2600: my $name = $1;
2601: if (exists($$elements{$name})) {
2602: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
2603: }
2604: }
2605: }
2606:
2607: foreach my $name (keys(%values)) {
2608: for (my $i=0; $i<@{$values{$name}}; $i++) {
2609: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
2610: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
2611: $values{$name}[$i] =~ s/"/\\"/g;
2612: }
2613: if (($$elements{$name} eq 'text') || ($$elements{$name} eq 'hidden')) {
2614: my $numvalues = @{$values{$name}};
2615: if ($numvalues > 1) {
2616: my $valuestring = join('","',@{$values{$name}});
2617: $output .= qq|
2618: var textvalues = new Array ("$valuestring");
2619: var total = courseForm.elements['$name'].length;
2620: if (total > $numvalues) {
2621: total = $numvalues;
2622: }
2623: for (var i=0; i<total; i++) {
2624: courseForm.elements['$name']\[i].value = textvalues[i];
2625: }
2626: |;
2627: } else {
2628: $output .= qq|
2629: courseForm.elements['$name'].value = "$values{$name}[0]";
2630: |;
2631: }
2632: } else {
2633: $output .= qq|
2634: var elementLength = courseForm.elements['$name'].length;
2635: if (elementLength==undefined) {
2636: |;
2637: foreach my $value (@{$values{$name}}) {
2638: if ($$elements{$name} eq 'selectbox') {
2639: $output .= qq|
2640: if (courseForm.elements['$name'].options[0].value == "$value") {
2641: courseForm.elements['$name'].options[0].selected = true;
2642: }|;
2643: } elsif (($$elements{$name} eq 'radio') ||
2644: ($$elements{$name} eq 'checkbox')) {
2645: $output .= qq|
2646: if (courseForm.elements['$name'].value == "$value") {
2647: courseForm.elements['$name'].checked = true;
2648: } else {
2649: courseForm.elements['$name'].checked = false;
2650: }|;
2651: }
2652: }
2653: $output .= qq|
2654: }
2655: else {
2656: for (var i=0; i<courseForm.elements['$name'].length; i++) {
2657: |;
2658: if ($$elements{$name} eq 'selectbox') {
2659: $output .= qq|
2660: courseForm.elements['$name'].options[i].selected = false;|;
2661: } elsif (($$elements{$name} eq 'radio') ||
2662: ($$elements{$name} eq 'checkbox')) {
2663: $output .= qq|
2664: courseForm.elements['$name']\[i].checked = false;|;
2665: }
2666: $output .= qq|
2667: }
2668: for (var j=0; j<courseForm.elements['$name'].length; j++) {
2669: |;
2670: foreach my $value (@{$values{$name}}) {
2671: if ($$elements{$name} eq 'selectbox') {
2672: $output .= qq|
2673: if (courseForm.elements['$name'].options[j].value == "$value") {
2674: courseForm.elements['$name'].options[j].selected = true;
2675: }|;
2676: } elsif (($$elements{$name} eq 'radio') ||
2677: ($$elements{$name} eq 'checkbox')) {
2678: $output .= qq|
2679: if (courseForm.elements['$name']\[j].value == "$value") {
2680: courseForm.elements['$name']\[j].checked = true;
2681: }|;
2682: }
2683: }
2684: $output .= qq|
2685: }
2686: }
2687: |;
2688: }
2689: }
2690: $output .= "
2691: return;
2692: }\n";
2693: return $output;
2694: }
2695:
2696: ##############################################
2697: ##############################################
2698:
2699: sub file_submissionchk_js {
2700: my ($turninpaths,$multiples) = @_;
2701: my $overwritewarn = &mt('File(s) you uploaded for your submission will overwrite existing file(s) submitted for this item').'\\n'.
2702: &mt('Continue submission and overwrite the file(s)?');
2703: my $delfilewarn = &mt('You have indicated you wish to remove some files previously included in your submission.').'\\n'.
2704: &mt('Continue submission with these files removed?');
2705: my ($turninpathtext,$multtext,$arrayindexofjs);
2706: if (ref($turninpaths) eq 'HASH') {
2707: foreach my $key (sort(keys(%{$turninpaths}))) {
2708: $turninpathtext .= " if (prefix == '$key') {\n".
2709: " return '$turninpaths->{$key}';\n".
2710: " }\n";
2711: }
2712: }
2713: $turninpathtext .= " return '';\n";
2714: if (ref($multiples) eq 'HASH') {
2715: foreach my $key (sort(keys(%{$multiples}))) {
2716: $multtext .= " if (prefix == '$key') {\n".
2717: " return '$multiples->{$key}';\n".
2718: " }\n";
2719: }
2720: }
2721: $multtext .= " return '';\n";
2722:
2723: $arrayindexofjs = &Apache::loncommon::javascript_array_indexof();
2724: return <<"ENDSCRIPT";
2725: <script type="text/javascript">
2726: // <![CDATA[
2727:
2728: function file_submission_check(formname,path,multiresp) {
2729: var elemnum = formname.elements.length;
2730: if (elemnum == 0) {
2731: return true;
2732: }
2733: var alloverwrites = [];
2734: var alldelconfirm = [];
2735: var result = [];
2736: var submitter;
2737: var subprefix;
2738: var allsub = getIndexByName(formname,'all_submit');
2739: if (allsub == -1) {
2740: var idx = getIndexByName(formname,'submitted');
2741: if (idx != -1) {
2742: var subval = String(formname.elements[idx].value);
2743: submitter = subval.replace(/^part_/,'');
2744: result = overwritten_check(formname,path,multiresp,submitter);
2745: alloverwrites.push.apply(alloverwrites,result['overwrite']);
2746: alldelconfirm.push.apply(alldelconfirm,result['delete']);
2747: }
2748: } else {
2749: if (formname.elements[allsub].type == 'submit') {
2750: var partsub = /^\\d+\\.\\d+_submit_.+\$/;
2751: var allprefixes = [];
2752: var allparts = [];
2753: for (var i=0; i<formname.elements.length; i++) {
2754: if (formname.elements[i].type == 'submit') {
2755: var elemname = formname.elements[i].name;
2756: var subname = String(elemname);
2757: var savesub = String(elemname);
2758: if (partsub.test(subname)) {
2759: var prefix = subname.replace(/_submit_.+\$/,'');
2760: if (allprefixes.indexOf(prefix) == -1) {
2761: allprefixes.push(prefix);
2762: allparts[prefix] = [];
2763: }
2764: var part = savesub.replace(/^\\d+\\.\\d+_submit_/,'');
2765: allparts[prefix].push(part);
2766: }
2767: }
2768: }
2769: for (var k=0; k<allprefixes.length; k++) {
2770: var idx = getIndexByName(formname,allprefixes[k]+'_submitted');
2771: if (idx > -1) {
2772: if (formname.elements[idx].value != 'yes') {
2773: submitterval = formname.elements[idx].value;
2774: submitter = submitterval.replace(/^part_/,'');
2775: subprefix = allprefixes[k];
2776: result = overwritten_check(formname,path,multiresp,submitter,subprefix);
2777: alloverwrites.push.apply(alloverwrites,result['overwrite']);
2778: alldelconfirm.push.apply(alldelconfirm,result['delete']);
2779: break;
2780: }
2781: }
2782: }
2783: if (submitter == '' || submitter == undefined) {
2784: for (var m=0; m<allprefixes.length; m++) {
2785: for (var n=0; n<allparts[allprefixes[m]].length; n++) {
2786: var result = overwritten_check(formname,path,multiresp,allparts[allprefixes[m]][n],allprefixes[m]);
2787: alloverwrites.push.apply(alloverwrites,result['overwrite']);
2788: alldelconfirm.push.apply(alldelconfirm,result['delete']);
2789: }
2790: }
2791: }
2792: }
2793: }
2794: if (alloverwrites.length > 0) {
2795: if (!confirm("$overwritewarn")) {
2796: for (var n=0; n<alloverwrites.length; n++) {
2797: formname.elements[alloverwrites[n]].value = "";
2798: }
2799: return false;
2800: }
2801: }
2802: if (alldelconfirm.length > 0) {
2803: if (!confirm("$delfilewarn")) {
2804: for (var p=0; p<alldelconfirm.length; p++) {
2805: formname.elements[alldelconfirm[p]].checked = false;
2806: }
2807: return false;
2808: }
2809: }
2810: return true;
2811: }
2812:
2813: function getIndexByName(formname,item) {
2814: for (var i=0;i<formname.elements.length;i++) {
2815: if (formname.elements[i].name == item) {
2816: return i;
2817: }
2818: }
2819: return -1;
2820: }
2821:
2822: function overwritten_check(formname,path,multiresp,part,prefix) {
2823: var result = [];
2824: result['overwrite'] = [];
2825: result['delete'] = [];
2826: var elemnum = formname.elements.length;
2827: if (elemnum == 0) {
2828: return result;
2829: }
2830: var uploadstr;
2831: var deletestr;
2832: if ((prefix != undefined) && (prefix != '')) {
2833: var prepend = prefix+'_';
2834: uploadstr = new RegExp("^"+prepend+"HWFILE"+part+".+\$");
2835: deletestr = new RegExp("^"+prepend+"HWFILE"+part+".+_\\\\d+_delete\$");
2836: multiresp = check_for_multiples(prepend);
2837: path = check_for_turninpath(prepend);
2838: } else {
2839: uploadstr = new RegExp("^HWFILE"+part+".+\$");
2840: deletestr = new RegExp("^HWFILE"+part+".+_\\\\d+_delete\$");
2841: }
2842: var alluploads = [];
2843: var allchecked = [];
2844: var allskipdel = [];
2845: var fnametrim = /[^\\/\\\\]+\$/;
2846: for (var i=0; i<formname.elements.length; i++) {
2847: var id = formname.elements[i].id;
2848: if (id != '') {
2849: if (uploadstr.test(id)) {
2850: if (formname.elements[i].type == 'file') {
2851: alluploads.push(id);
2852: } else {
2853: if (deletestr.test(id)) {
2854: if (formname.elements[i].type == 'checkbox') {
2855: if (formname.elements[i].checked) {
2856: allchecked.push(id);
2857: }
2858: }
2859: }
2860: }
2861: }
2862: }
2863: }
2864: for (var j=0; j<alluploads.length; j++) {
2865: var delstr = new RegExp("^"+alluploads[j]+"_\\\\d+_delete\$");
2866: var delboxes = [];
2867: for (var k=0; k<formname.elements.length; k++) {
2868: var id = formname.elements[k].id;
2869: if ((id != '') && (id != undefined)) {
2870: if (delstr.test(id)) {
2871: if (formname.elements[k].type == 'checkbox') {
2872: delboxes.push(id);
2873: }
2874: }
2875: }
2876: }
2877: if (delboxes.length > 0) {
2878: if ((formname.elements[alluploads[j]].value != undefined) &&
2879: (formname.elements[alluploads[j]].value != '')) {
2880: var filepath = formname.elements[alluploads[j]].value;
2881: var newfilename = fnametrim.exec(filepath);
2882: if (newfilename != null) {
2883: var filename = String(newfilename);
2884: var nospaces = filename.replace(/\\s+/g,'_');
2885: var nospecials = nospaces.replace(/[^\\/\\w\\.\\-]/g,'');
2886: var cleanfilename = nospecials.replace(/\\.(\\d+\\.)/g,"_\$1");
2887: if (cleanfilename != '') {
2888: var fullpath = path+"/"+cleanfilename;
2889: if (multiresp == 1) {
2890: var partid = String(alluploads[i]);
2891: var subdir = partid.replace(/^\\d*.?\\d*_?HWFILE/,'');
2892: if (subdir != "" && subdir != undefined) {
2893: fullpath = path+"/"+subdir+"/"+cleanfilename;
2894: }
2895: }
2896: for (var m=0; m<delboxes.length; m++) {
2897: if (fullpath == formname.elements[delboxes[m]].value) {
2898: if (formname.elements[delboxes[m]].checked) {
2899: allskipdel.push(delboxes[m]);
2900: } else {
2901: result['overwrite'].push(alluploads[j]);
2902: }
2903: break;
2904: }
2905: }
2906: }
2907: }
2908: }
2909: }
2910: }
2911: if (allchecked.length > 0) {
2912: if (allskipdel.length > 0) {
2913: for (var n=0; n<allchecked.length; n++) {
2914: if (allskipdel.indexOf(allchecked[n]) == -1) {
2915: result['delete'].push(allchecked[n]);
2916: }
2917: }
2918: } else {
2919: result['delete'].push.apply(result['delete'],allchecked);
2920: }
2921: }
2922: return result;
2923: }
2924:
2925: function check_for_multiples(prefix) {
2926: $multtext
2927: }
2928:
2929: function check_for_turninpath(prefix) {
2930: $turninpathtext
2931: }
2932:
2933: // ]]>
2934: </script>
2935:
2936: $arrayindexofjs
2937:
2938: ENDSCRIPT
2939: }
2940:
2941: ##############################################
2942: ##############################################
2943:
2944: sub resize_scrollbox_js {
2945: my ($context,$tabidstr,$tid) = @_;
2946: my (%names,$paddingwfrac,$offsetwfrac,$offsetv,$minw,$minv);
2947: if ($context eq 'docs') {
2948: %names = (
2949: boxw => 'contenteditor',
2950: item => 'contentlist',
2951: header => 'uploadfileresult',
2952: scroll => 'contentscroll',
2953: boxh => 'contenteditor',
2954: );
2955: $paddingwfrac = 0.09;
2956: $offsetwfrac = 0.015;
2957: $offsetv = 20;
2958: $minw = 250;
2959: $minv = 200;
2960: } elsif ($context eq 'params') {
2961: %names = (
2962: boxw => 'parameditor',
2963: item => 'mapmenuinner',
2964: header => 'parmstep1',
2965: scroll => 'mapmenuscroll',
2966: boxh => 'parmlevel',
2967: );
2968: $paddingwfrac = 0.2;
2969: $offsetwfrac = 0.015;
2970: $offsetv = 80;
2971: $minw = 100;
2972: $minv = 100;
2973: }
2974: my $viewport_js = &Apache::loncommon::viewport_geometry_js();
2975: my $output = '
2976:
2977: window.onresize=callResize;
2978:
2979: ';
2980: if ($context eq 'docs') {
2981: if ($env{'form.active'}) {
2982: $output .= "\nvar activeTab = '$env{'form.active'}$tid';\n";
2983: } else {
2984: $output .= "\nvar activeTab = '';\n";
2985: }
2986: }
2987: $output .= <<"FIRST";
2988:
2989: $viewport_js
2990:
2991: function resize_scrollbox(scrollboxname,chkw,chkh) {
2992: var scrollboxid = 'div_'+scrollboxname;
2993: var scrolltableid = 'table_'+scrollboxname;
2994: var scrollbox;
2995: var scrolltable;
2996: var ismobile = '$env{'browser.mobile'}';
2997:
2998: if (document.getElementById("$names{'boxw'}") == null) {
2999: return;
3000: }
3001:
3002: if (document.getElementById(scrollboxid) == null) {
3003: return;
3004: } else {
3005: scrollbox = document.getElementById(scrollboxid);
3006: }
3007:
3008:
3009: if (document.getElementById(scrolltableid) == null) {
3010: return;
3011: } else {
3012: scrolltable = document.getElementById(scrolltableid);
3013: }
3014:
3015: init_geometry();
3016: var vph = Geometry.getViewportHeight();
3017: var vpw = Geometry.getViewportWidth();
3018:
3019: FIRST
3020: if ($context eq 'docs') {
3021: $output .= "
3022: var alltabs = ['$tabidstr'];
3023: ";
3024: } elsif ($context eq 'params') {
3025: $output .= "
3026: if (document.getElementById('$names{'boxh'}') == null) {
3027: return;
3028: }
3029: ";
3030: }
3031: $output .= <<"SECOND";
3032: var listwchange;
3033: var scrollchange;
3034: if (chkw == 1) {
3035: var boxw = document.getElementById("$names{'boxw'}").offsetWidth;
3036: var itemw;
3037: var itemid = document.getElementById("$names{'item'}");
3038: if (itemid != null) {
3039: itemw = itemid.offsetWidth;
3040: }
3041: var itemwstart = itemw;
3042:
3043: var scrollboxw = scrollbox.offsetWidth;
3044: var scrollboxscrollw = scrollbox.scrollWidth;
3045: var scrollstart = scrollboxw;
3046:
3047: var offsetw = parseInt(vpw * $offsetwfrac);
3048: var paddingw = parseInt(vpw * $paddingwfrac);
3049:
3050: var minscrollboxw = $minw;
3051: var maxcolw = 0;
3052: SECOND
3053: if ($context eq 'docs') {
3054: $output .= <<"DOCSONE";
3055: var actabw = 0;
3056: for (var i=0; i<alltabs.length; i++) {
3057: if (activeTab == alltabs[i]) {
3058: actabw = document.getElementById(alltabs[i]).offsetWidth;
3059: if (actabw > maxcolw) {
3060: maxcolw = actabw;
3061: }
3062: } else {
3063: if (document.getElementById(alltabs[i]) != null) {
3064: var thistab = document.getElementById(alltabs[i]);
3065: thistab.style.visibility = 'hidden';
3066: thistab.style.display = 'block';
3067: var tabw = document.getElementById(alltabs[i]).offsetWidth;
3068: thistab.style.display = 'none';
3069: thistab.style.visibility = '';
3070: if (tabw > maxcolw) {
3071: maxcolw = tabw;
3072: }
3073: }
3074: }
3075: }
3076: DOCSONE
3077: } elsif ($context eq 'params') {
3078: $output .= <<"PARAMSONE";
3079: var parmlevelrows = new Array();
3080: var mapmenucells = new Array();
3081: parmlevelrows = document.getElementById("$names{'boxh'}").rows;
3082: var numrows = parmlevelrows.length;
3083: if (numrows > 1) {
3084: mapmenucells = parmlevelrows[2].getElementsByTagName('td');
3085: }
3086: maxcolw = mapmenucells[0].offsetWidth;
3087: PARAMSONE
3088: }
3089: $output .= <<"THIRD";
3090: if (maxcolw > 0) {
3091: var newscrollboxw;
3092: if (maxcolw+paddingw+scrollboxscrollw<boxw) {
3093: newscrollboxw = boxw-paddingw-maxcolw;
3094: if (newscrollboxw < minscrollboxw) {
3095: newscrollboxw = minscrollboxw;
3096: }
3097: scrollbox.style.width = newscrollboxw+"px";
3098: if (newscrollboxw != scrollboxw) {
3099: var newitemw = newscrollboxw-offsetw;
3100: itemid.style.width = newitemw+"px";
3101: }
3102: } else {
3103: newscrollboxw = boxw-paddingw-maxcolw;
3104: if (newscrollboxw < minscrollboxw) {
3105: newscrollboxw = minscrollboxw;
3106: }
3107: scrollbox.style.width = newscrollboxw+"px";
3108: if (newscrollboxw != scrollboxw) {
3109: var newitemw = newscrollboxw-offsetw;
3110: itemid.style.width = newitemw+"px";
3111: }
3112: }
3113:
3114: if (newscrollboxw != scrollboxw) {
3115: var newscrolltablew = newscrollboxw+offsetw;
3116: scrolltable.style.width = newscrolltablew+"px";
3117: }
3118: }
3119:
3120: if (newscrollboxw != scrollboxw) {
3121: scrollchange = 1;
3122: }
3123:
3124: if (itemid.offsetWidth != itemwstart) {
3125: listwchange = 1;
3126: }
3127: }
3128: if ((chkh == 1) || (listwchange)) {
3129: var itemid = document.getElementById("$names{'item'}");
3130: if (itemid != null) {
3131: itemh = itemid.offsetHeight;
3132: }
3133: var primaryheight = document.getElementById('LC_nav_bar').offsetHeight;
3134: var secondaryheight;
3135: if (document.getElementById('LC_secondary_menu') != null) {
3136: secondaryheight = document.getElementById('LC_secondary_menu').offsetHeight;
3137: }
3138: var crumbsheight = document.getElementById('LC_breadcrumbs').offsetHeight;
3139: var dccidheight = 0;
3140: if (document.getElementById('dccid') != null) {
3141: dccidheight = document.getElementById('dccid').offsetHeight;
3142: }
3143: var headerheight = 0;
3144: if (document.getElementById("$names{'header'}") != null) {
3145: headerheight = document.getElementById("$names{'header'}").offsetHeight;
3146: }
3147: var tabbedheight = document.getElementById("tabbededitor").offsetHeight;
3148: var boxheight = document.getElementById("$names{'boxh'}").offsetHeight;
3149: var freevspace = vph-(primaryheight+secondaryheight+crumbsheight+dccidheight+headerheight+tabbedheight+boxheight);
3150:
3151: var scrollboxheight = scrollbox.offsetHeight;
3152: var scrollboxscrollheight = scrollbox.scrollHeight;
3153: var scrollboxh = scrollboxheight;
3154:
3155: var minvscrollbox = $minv;
3156: var offsetv = $offsetv;
3157: var newscrollboxheight;
3158: if (freevspace < 0) {
3159: newscrollboxheight = scrollboxheight+freevspace-offsetv;
3160: if (newscrollboxheight < minvscrollbox) {
3161: newscrollboxheight = minvscrollbox;
3162: }
3163: scrollbox.style.height = newscrollboxheight + "px";
3164: } else {
3165: if (scrollboxscrollheight > scrollboxheight) {
3166: if (freevspace > offsetv) {
3167: newscrollboxheight = scrollboxheight+freevspace-offsetv;
3168: if (newscrollboxheight < minvscrollbox) {
3169: newscrollboxheight = minvscrollbox;
3170: }
3171: scrollbox.style.height = newscrollboxheight+"px";
3172: }
3173: }
3174: }
3175: scrollboxheight = scrollbox.offsetHeight;
3176: var itemh = document.getElementById("$names{'item'}").offsetHeight;
3177:
3178: if (scrollboxscrollheight <= scrollboxheight) {
3179: if ((itemh+offsetv)<scrollboxheight) {
3180: newscrollheight = itemh+offsetv;
3181: scrollbox.style.height = newscrollheight+"px";
3182: }
3183: }
3184: var newscrollboxh = scrollbox.offsetHeight;
3185: if (scrollboxh != newscrollboxh) {
3186: scrollchange = 1;
3187: }
3188: }
3189: if (ismobile && scrollchange) {
3190: \$("#div_$names{'scroll'}").getNiceScroll().onResize();
3191: }
3192: return;
3193: }
3194:
3195: function callResize() {
3196: var timer;
3197: clearTimeout(timer);
3198: timer=setTimeout('resize_scrollbox("$names{'scroll'}","1","1")',500);
3199: }
3200:
3201: THIRD
3202: return $output;
3203: }
3204:
3205: ##############################################
3206: ##############################################
3207:
3208: sub javascript_jumpto_resource {
3209: my $confirm_switch = &mt("Editing requires switching to the resource's home server.").'\n'.
3210: &mt('Switch server?');
3211: return (<<ENDUTILITY)
3212:
3213: function go(url) {
3214: if (url!='' && url!= null) {
3215: currentURL = null;
3216: currentSymb= null;
3217: window.location.href=url;
3218: }
3219: }
3220:
3221: function need_switchserver(url) {
3222: if (url!='' && url!= null) {
3223: if (confirm("$confirm_switch")) {
3224: go(url);
3225: }
3226: }
3227: return;
3228: }
3229:
3230: ENDUTILITY
3231:
3232: }
3233:
3234: sub jump_to_editres {
3235: my ($cfile,$home,$switchserver,$forceedit,$forcereg,$symb,$folderpath,
3236: $title,$idx,$suppurl,$todocs) = @_;
3237: my $jscall;
3238: if ($switchserver) {
3239: if ($home) {
3240: $cfile = '/adm/switchserver?otherserver='.$home.'&role='.
3241: &HTML::Entities::encode($env{'request.role'},'"<>&');
3242: if ($symb) {
3243: $cfile .= '&symb='.&HTML::Entities::encode($symb,'"<>&');
3244: } elsif ($folderpath) {
3245: $cfile .= '&folderpath='.&HTML::Entities::encode($folderpath,'"<>&');
3246: }
3247: if ($forceedit) {
3248: $cfile .= '&forceedit=1';
3249: }
3250: if ($forcereg) {
3251: $cfile .= '&register=1';
3252: }
3253: $jscall = "need_switchserver('$cfile');";
3254: }
3255: } else {
3256: unless ($cfile =~ m{^/priv/}) {
3257: if ($symb) {
3258: $cfile .= (($cfile=~/\?/)?'&':'?')."symb=$symb";
3259: } elsif ($folderpath) {
3260: $cfile .= (($cfile=~/\?/)?'&':'?').
3261: 'folderpath='.&HTML::Entities::encode(&escape($folderpath),'"<>&');
3262: if ($title) {
3263: $cfile .= (($cfile=~/\?/)?'&':'?').
3264: 'title='.&HTML::Entities::encode(&escape($title),'"<>&');
3265: }
3266: if ($idx) {
3267: $cfile .= (($cfile=~/\?/)?'&':'?').'idx='.$idx;
3268: }
3269: if ($suppurl) {
3270: $cfile .= (($cfile=~/\?/)?'&':'?').
3271: 'suppurl='.&HTML::Entities::encode(&escape($suppurl));
3272: }
3273: }
3274: if ($forceedit) {
3275: $cfile .= (($cfile=~/\?/)?'&':'?').'forceedit=1';
3276: }
3277: if ($forcereg) {
3278: $cfile .= (($cfile=~/\?/)?'&':'?').'register=1';
3279: }
3280: if ($todocs) {
3281: $cfile .= (($cfile=~/\?/)?'&':'?').'todocs=1';
3282: }
3283: }
3284: $jscall = "go('$cfile')";
3285: }
3286: return $jscall;
3287: }
3288:
3289: ##############################################
3290: ##############################################
3291:
3292: # javascript_valid_email
3293: #
3294: # Generates javascript to validate an e-mail address.
3295: # Returns a javascript function which accetps a form field as argumnent, and
3296: # returns false if field.value does not satisfy two regular expression matches
3297: # for a valid e-mail address. Backwards compatible with old browsers without
3298: # support for javascript RegExp (just checks for @ in field.value in this case).
3299:
3300: sub javascript_valid_email {
3301: my $scripttag .= <<'END';
3302: function validmail(field) {
3303: var str = field.value;
3304: if (window.RegExp) {
3305: var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
3306: var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
3307: var reg1 = new RegExp(reg1str);
3308: var reg2 = new RegExp(reg2str);
3309: if (!reg1.test(str) && reg2.test(str)) {
3310: return true;
3311: }
3312: return false;
3313: }
3314: else
3315: {
3316: if(str.indexOf("@") >= 0) {
3317: return true;
3318: }
3319: return false;
3320: }
3321: }
3322: END
3323: return $scripttag;
3324: }
3325:
3326:
3327: # USAGE: htmltag(element, content, {attribute => value,...});
3328: #
3329: # EXAMPLES:
3330: # - htmltag('a', 'this is an anchor', {href => 'www.example.com',
3331: # title => 'this is a title'})
3332: #
3333: # - You might want to set up needed tags like:
3334: #
3335: # my $h3 = sub { return htmltag( "h3", @_ ) };
3336: #
3337: # ... and use them: $h3->("This is a headline")
3338: #
3339: # - To set up a couple of tags, see sub inittags
3340: #
3341: # NOTES:
3342: # - Empty elements, such as <br/> are correctly terminated,
3343: # i.e. htmltag('br') returns <br/>
3344: # - Empty attributes (title="") are filtered out.
3345: # - The function will not check for deprecated attributes.
3346: #
3347: # OUTPUT: content enclosed in xhtml conform tags
3348: sub htmltag{
3349: return
3350: qq|<$_[0]|
3351: . join( '', map { qq| $_="${$_[2]}{$_}"| if ${$_[2]}{$_} } keys %{ $_[2] } )
3352: . ($_[1] ? qq|>$_[1]</$_[0]>| : qq|/>|). "\n";
3353: };
3354:
3355:
3356: # USAGE: inittags(@tags);
3357: #
3358: # EXAMPLES:
3359: # - my ($h1, $h2, $h3) = inittags( qw( h1 h2 h3 ) )
3360: # $h1->("This is a headline") #Returns: <h1>This is a headline</h1>
3361: #
3362: # NOTES: See sub htmltag for further information.
3363: #
3364: # OUTPUT: List of subroutines.
3365: sub inittags {
3366: my @tags = @_;
3367: return map { my $tag = $_;
3368: sub { return htmltag( $tag, @_ ) }
3369: } @tags;
3370: }
3371:
3372:
3373: # USAGE: scripttag(scriptcode, [start|end|both]);
3374: #
3375: # EXAMPLES:
3376: # - scripttag("alert('Hello World!')", 'both')
3377: # returns:
3378: # <script type="text/javascript">
3379: # // BEGIN LON-CAPA Internal
3380: # alert(Hello World!')
3381: # // END LON-CAPA Internal
3382: # </script>
3383: #
3384: # NOTES:
3385: # - works currently only for javascripts
3386: #
3387: # OUTPUT:
3388: # Scriptcode properly enclosed in <script> and CDATA tags (and LC
3389: # Internal markers if 2nd argument is given)
3390: sub scripttag {
3391: my ( $content, $marker ) = @_;
3392: return unless defined $content;
3393:
3394: my $begin = "\n// BEGIN LON-CAPA Internal\n";
3395: my $end = "\n// END LON-CAPA Internal\n";
3396:
3397: if ($marker) {
3398: $content = $begin . $content if $marker eq 'start' or $marker eq 'both';
3399: $content .= $end if $marker eq 'end' or $marker eq 'both';
3400: }
3401:
3402: $content = "\n// <![CDATA[\n$content\n// ]]>\n";
3403:
3404: return htmltag('script', $content, {type => 'text/javascript'});
3405: };
3406:
3407: =pod
3408:
3409: =item &list_from_array( \@array, { listattr =>{}, itemattr =>{} } )
3410:
3411: Constructs a XHTML list from \@array.
3412:
3413: input:
3414:
3415: =over
3416:
3417: =item \@array
3418:
3419: A reference to the array containing text that will be wrapped in <li></li> tags.
3420:
3421: =item { listattr => {}, itemattr =>{} }
3422:
3423: Attributes for <ul> and <li> passed in as hash references.
3424: See htmltag() for more details.
3425:
3426: =back
3427:
3428: returns: XHTML list as String.
3429:
3430: =cut
3431:
3432: # \@items, {listattr => { class => 'abc', id => 'xyx' }, itemattr => {class => 'abc', id => 'xyx'}}
3433: sub list_from_array {
3434: my ($items, $args) = @_;
3435: return unless (ref($items) eq 'ARRAY');
3436: return unless scalar @$items;
3437: my ($ul, $li) = inittags( qw(ul li) );
3438: my $listitems = join '', map { $li->($_, $args->{itemattr}) } @$items;
3439: return $ul->( $listitems, $args->{listattr} );
3440: }
3441:
3442:
3443: ##############################################
3444: ##############################################
3445:
3446: # generate_menu
3447: #
3448: # Generates html markup for a menu.
3449: #
3450: # Inputs:
3451: # An array of following structure:
3452: # ({ categorytitle => 'Categorytitle',
3453: # items => [
3454: # {
3455: # linktext => 'Text to be displayed',
3456: # url => 'URL the link is pointing to, i.e. /adm/site?action=dosomething',
3457: # permission => 'Contains permissions as returned from lonnet::allowed(),
3458: # must evaluate to true in order to activate the link',
3459: # icon => 'icon filename',
3460: # alttext => 'alt text for the icon',
3461: # help => 'Name of the corresponding helpfile',
3462: # linktitle => 'Description of the link (used for title tag)'
3463: # },
3464: # ...
3465: # ]
3466: # },
3467: # ...
3468: # )
3469: #
3470: # Outputs: A scalar containing the html markup for the menu.
3471:
3472: sub generate_menu {
3473: my @menu = @_;
3474: # subs for specific html elements
3475: my ($h3, $div, $ul, $li, $a, $img) = inittags( qw(h3 div ul li a img) );
3476:
3477: my @categories; # each element represents the entire markup for a category
3478:
3479: foreach my $category (@menu) {
3480: my @links; # contains the links for the current $category
3481: foreach my $link (@{$$category{items}}) {
3482: next unless $$link{permission};
3483:
3484: # create the markup for the current $link and push it into @links.
3485: # each entry consists of an image and a text optionally followed
3486: # by a help link.
3487: my $src;
3488: if ($$link{icon} ne '') {
3489: $src = '/res/adm/pages/'.$$link{icon};
3490: }
3491: push(@links,$li->(
3492: $a->(
3493: $img->("", {
3494: class => "LC_noBorder LC_middle",
3495: src => $src,
3496: alt => mt(defined($$link{alttext}) ?
3497: $$link{alttext} : $$link{linktext})
3498: }), {
3499: href => $$link{url},
3500: title => mt($$link{linktitle}),
3501: class => 'LC_menubuttons_link'
3502: }).
3503: $a->(mt($$link{linktext}), {
3504: href => $$link{url},
3505: title => mt($$link{linktitle}),
3506: class => "LC_menubuttons_link"
3507: }).
3508: (defined($$link{help}) ?
3509: Apache::loncommon::help_open_topic($$link{help}) : ''),
3510: {class => "LC_menubuttons_inline_text"}));
3511: }
3512:
3513: # wrap categorytitle in <h3>, concatenate with
3514: # joined and in <ul> tags wrapped @links
3515: # and wrap everything in an enclosing <div> and push it into
3516: # @categories
3517: # such that each element looks like:
3518: # <div><h3>title</h3><ul><li>...</li>...</ul></div>
3519: # the category won't be added if there aren't any links
3520: push(@categories,
3521: $div->($h3->(mt($$category{categorytitle}), {class=>"LC_hcell"}).
3522: $ul->(join('' ,@links), {class =>"LC_ListStyleNormal" }),
3523: {class=>"LC_Box LC_400Box"})) if scalar(@links);
3524: }
3525:
3526: # wrap the joined @categories in another <div> (column layout)
3527: return $div->(join('', @categories), {class => "LC_columnSection"});
3528: }
3529:
3530: ##############################################
3531: ##############################################
3532:
3533: =pod
3534:
3535: =item &start_funclist()
3536:
3537: Start list of available functions
3538:
3539: Typically used to offer a simple list of available functions
3540: at top or bottom of page.
3541: All available functions/actions for the current page
3542: should be included in this list.
3543:
3544: If the optional headline text is not provided, a default text will be used.
3545:
3546:
3547: Related routines:
3548: =over 4
3549: add_item_funclist
3550: end_funclist
3551: =back
3552:
3553:
3554: Inputs: (optional) headline text
3555:
3556: Returns: HTML code with function list start
3557:
3558: =cut
3559:
3560: ##############################################
3561: ##############################################
3562:
3563: sub start_funclist {
3564: my($legendtext)=@_;
3565: $legendtext=&mt('Functions') if !$legendtext;
3566: return '<ul class="LC_funclist"><li style="font-weight:bold; margin-left:0.8em;">'.$legendtext.'</li>'."\n";
3567: }
3568:
3569:
3570: ##############################################
3571: ##############################################
3572:
3573: =pod
3574:
3575: =item &add_item_funclist()
3576:
3577: Adds an item to the list of available functions
3578:
3579: Related routines:
3580: =over 4
3581: start_funclist
3582: end_funclist
3583: =back
3584:
3585: Inputs: content item with text and link to function
3586:
3587: Returns: HTML code with list item for funclist
3588:
3589: =cut
3590:
3591: ##############################################
3592: ##############################################
3593:
3594: sub add_item_funclist {
3595: my($content) = @_;
3596: return '<li>'.$content.'</li>'."\n";
3597: }
3598:
3599: =pod
3600:
3601: =item &end_funclist()
3602:
3603: End list of available functions
3604:
3605: Related routines:
3606: =over 4
3607: start_funclist
3608: add_item_funclist
3609: =back
3610:
3611: Inputs: ./.
3612:
3613: Returns: HTML code with function list end
3614: =cut
3615:
3616: sub end_funclist {
3617: return "</ul>\n";
3618: }
3619:
3620: =pod
3621:
3622: =item &funclist_from_array( \@array, {legend => 'text for legend'} )
3623:
3624: Constructs a XHTML list from \@array with the first item being visually
3625: highlighted and set to the value of legend or 'Functions' if legend is
3626: empty.
3627:
3628: =over
3629:
3630: =item \@array
3631:
3632: A reference to the array containing text that will be wrapped in <li></li> tags.
3633:
3634: =item { legend => 'text' }
3635:
3636: A string that's used as visually highlighted first item. 'Functions' is used if
3637: it's value evaluates to false.
3638:
3639: =back
3640:
3641: returns: XHTML list as string.
3642:
3643: =back
3644:
3645: =cut
3646:
3647: sub funclist_from_array {
3648: my ($items, $args) = @_;
3649: return unless(ref($items) eq 'ARRAY');
3650: $args->{legend} ||= mt('Functions');
3651: return list_from_array( [$args->{legend}, @$items],
3652: { listattr => {class => 'LC_funclist'} });
3653: }
3654:
3655: =pod
3656:
3657: =item &actionbox( \@array )
3658:
3659: Constructs a XHTML list from \@array with the first item being visually
3660: highlighted and set to the value 'Actions'. The list is wrapped in a division.
3661:
3662: The actionlist is used to offer contextual actions, mostly at the bottom
3663: of a page, on which the outcome of an processed action is shown,
3664: e.g. a file operation in Authoring Space.
3665:
3666: =over
3667:
3668: =item \@array
3669:
3670: A reference to the array containing text. Details: sub funclist_from_array
3671:
3672: =back
3673:
3674: Returns: XHTML div as string.
3675:
3676: =back
3677:
3678: =cut
3679:
3680: sub actionbox {
3681: my ($items) = @_;
3682: return unless(ref($items) eq 'ARRAY');
3683: return
3684: '<div class="LC_actionbox">'
3685: .&funclist_from_array($items, {legend => &mt('Actions')})
3686: .'</div>';
3687: }
3688:
3689: 1;
3690:
3691: __END__
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