1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.358.2.19.2.3 2022/07/08 16:04:35 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: my $target =' target="_top"';
82: if (($env{'request.deeplink.login'}) && ($env{'request.deeplink.target'} eq '_self')) {
83: $target = '';
84: }
85: return '<a'.$target.' href="'.&HTML::Entities::encode("/adm/courseprefs?phase=display&actions=$category",'<>&"').'"><span class="LC_setting">'.$text.'</span></a>';
86: } else {
87: return '';
88: }
89: }
90:
91: sub raw_href_to_link {
92: my ($message)=@_;
93: $message=~s/(https?\:\/\/[^\s\'\"\<]+)([\s\<]|$)/<a href="$1"><tt>$1<\/tt><\/a>$2/gi;
94: return $message;
95: }
96:
97: sub entity_encode {
98: my ($text)=@_;
99: return &HTML::Entities::encode($text, '\'<>&"');
100: }
101:
102: sub direct_parm_link {
103: my ($linktext,$symb,$filter,$part,$target)=@_;
104: $symb=&entity_encode($symb);
105: $filter=&entity_encode($filter);
106: $part=&entity_encode($part);
107: if (($symb) && (&Apache::lonnet::allowed('opa')) && ($target ne 'tex')) {
108: my $target=' target="_top"';
109: if (($env{'request.deeplink.login'}) && ($env{'request.deeplink.target'} eq '_self')) {
110: $target = '';
111: }
112: return "<a".$target." href='/adm/parmset?symb=$symb&filter=$filter&part=$part'><span class='LC_setting'>$linktext</span></a>";
113: } else {
114: return $linktext;
115: }
116: }
117: ##############################################
118: ##############################################
119:
120: =item &confirm_success()
121:
122: Successful completion of an operation message
123:
124: =cut
125:
126: sub confirm_success {
127: my ($message,$failure)=@_;
128: if ($failure) {
129: return '<span class="LC_error" style="font-size: inherit;">'."\n"
130: .'<img src="/adm/lonIcons/navmap.wrong.gif" alt="'.&mt('Error').'" /> '."\n"
131: .$message."\n"
132: .'</span>'."\n";
133: } else {
134: return '<span class="LC_success">'."\n"
135: .'<img src="/adm/lonIcons/navmap.correct.gif" alt="'.&mt('OK').'" /> '."\n"
136: .$message."\n"
137: .'</span>'."\n";
138: }
139: }
140:
141: ##############################################
142: ##############################################
143:
144: =pod
145:
146: =item &dragmath_button()
147:
148: Creates a button that launches a dragmath popup-window, in which an
149: expression can be edited and pasted as LaTeX into a specified textarea.
150:
151: textarea - Name of the textarea to edit.
152: helpicon - If true, show a help icon to the right of the button.
153:
154: =cut
155:
156: sub dragmath_button {
157: my ($textarea,$helpicon) = @_;
158: my $help_text;
159: if ($helpicon) {
160: $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor',undef,undef,undef,undef,'mathhelpicon_'.$textarea);
161: }
162: my $buttontext=&mt('Edit Math');
163: return <<ENDDRAGMATH;
164: <input type="button" value="$buttontext" onclick="javascript:mathedit('$textarea',document)" />$help_text
165: ENDDRAGMATH
166: }
167:
168: ##############################################
169:
170: =pod
171:
172: =item &dragmath_js()
173:
174: Javascript used to open pop-up window containing dragmath applet which
175: can be used to paste LaTeX into a textarea.
176:
177: =cut
178:
179: sub dragmath_js {
180: my ($popup) = @_;
181: return <<ENDDRAGMATHJS;
182: <script type="text/javascript">
183: // <![CDATA[
184: function mathedit(textarea, doc) {
185: targetEntry = textarea;
186: targetDoc = doc;
187: newwin = window.open("/adm/dragmath/$popup.html","","width=565,height=500,resizable");
188: }
189: // ]]>
190: </script>
191:
192: ENDDRAGMATHJS
193: }
194:
195: ##############################################
196: ##############################################
197:
198: =pod
199:
200: =item &dependencies_button()
201:
202: Creates a button that launches a popup-window, in which dependencies
203: for the web page in the main window can be added to, replaced or deleted.
204:
205: =cut
206:
207: sub dependencies_button {
208: my $buttontext=&mt('Manage Dependencies');
209: return <<"END";
210: <input type="button" value="$buttontext" onclick="javascript:dependencycheck();" />
211: END
212: }
213:
214: ##############################################
215:
216: =pod
217:
218: =item &dependencycheck_js()
219:
220: Javascript used to open pop-up window containing interface to manage
221: dependencies for a web page uploaded diretcly to a course.
222:
223: =cut
224:
225: sub dependencycheck_js {
226: my ($symb,$title,$url,$folderpath,$uri) = @_;
227: my $link;
228: if ($symb) {
229: $link = '/adm/dependencies?symb='.&HTML::Entities::encode($symb,'<>&"');
230: } elsif ($folderpath) {
231: $link = '/adm/dependencies?folderpath='.&HTML::Entities::encode($folderpath,'<>&"');
232: $url = $uri;
233: } elsif ($uri =~ m{^/public/$match_domain/$match_courseid/syllabus$}) {
234: $link = '/adm/dependencies';
235: }
236: $link .= (($link=~/\?/)?'&':'?').'title='.
237: &HTML::Entities::encode($title,'<>&"');
238: if ($url) {
239: $link .= '&url='.&HTML::Entities::encode($url,'<>&"');
240: }
241: return <<ENDJS;
242: <script type="text/javascript">
243: // <![CDATA[
244: function dependencycheck() {
245: depwin = window.open("$link","","width=750,height=500,resizable,scrollbars=yes");
246: }
247: // ]]>
248: </script>
249: ENDJS
250: }
251:
252: ##############################################
253: ##############################################
254:
255: =pod
256:
257: =item &authorbombs()
258:
259: =cut
260:
261: ##############################################
262: ##############################################
263:
264: sub authorbombs {
265: my $url=shift;
266: $url=&Apache::lonnet::declutter($url);
267: my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
268: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
269: foreach my $bomb (keys(%bombs)) {
270: if ($bomb =~ /^$udom\/$uname\//) {
271: return '<a href="/adm/bombs/'.$url.
272: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" alt="'.&mt('Bomb').'" border="0" /></a>'.
273: &Apache::loncommon::help_open_topic('About_Bombs');
274: }
275: }
276: return '';
277: }
278:
279: ##############################################
280: ##############################################
281:
282: sub recent_filename {
283: my $area=shift;
284: return 'nohist_recent_'.&escape($area);
285: }
286:
287: sub store_recent {
288: my ($area,$name,$value,$freeze)=@_;
289: my $file=&recent_filename($area);
290: my %recent=&Apache::lonnet::dump($file);
291: if (scalar(keys(%recent))>20) {
292: # remove oldest value
293: my $oldest=time();
294: my $delkey='';
295: foreach my $item (keys(%recent)) {
296: my $thistime=(split(/\&/,$recent{$item}))[0];
297: if (($thistime ne "always_include") && ($thistime<$oldest)) {
298: $oldest=$thistime;
299: $delkey=$item;
300: }
301: }
302: &Apache::lonnet::del($file,[$delkey]);
303: }
304: # store new value
305: my $timestamp;
306: if ($freeze) {
307: $timestamp = "always_include";
308: } else {
309: $timestamp = time();
310: }
311: &Apache::lonnet::put($file,{ $name =>
312: $timestamp.'&'.&escape($value) });
313: }
314:
315: sub remove_recent {
316: my ($area,$names)=@_;
317: my $file=&recent_filename($area);
318: return &Apache::lonnet::del($file,$names);
319: }
320:
321: sub select_recent {
322: my ($area,$fieldname,$event)=@_;
323: my %recent=&Apache::lonnet::dump(&recent_filename($area));
324: my $return="\n<select name='$fieldname'".
325: ($event?" onchange='$event'":'').
326: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
327: foreach my $value (sort(keys(%recent))) {
328: unless ($value =~/^error\:/) {
329: my $escaped = &Apache::loncommon::escape_url($value);
330: &Apache::loncommon::inhibit_menu_check(\$escaped);
331: if ($area eq 'residx') {
332: next if ((!&Apache::lonnet::allowed('bre',$value)) && (!&Apache::lonnet::allowed('bro',$value)));
333: }
334: $return.="\n<option value='$escaped'>".
335: &unescape((split(/\&/,$recent{$value}))[1]).
336: '</option>';
337: }
338: }
339: $return.="\n</select>\n";
340: return $return;
341: }
342:
343: sub get_recent {
344: my ($area, $n) = @_;
345: my %recent=&Apache::lonnet::dump(&recent_filename($area));
346:
347: # Create hash with key as time and recent as value
348: # Begin filling return_hash with any 'always_include' option
349: my %time_hash = ();
350: my %return_hash = ();
351: foreach my $item (keys(%recent)) {
352: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
353: if ($thistime eq 'always_include') {
354: $return_hash{$item} = &unescape($thisvalue);
355: $n--;
356: } else {
357: $time_hash{$thistime} = $item;
358: }
359: }
360:
361: # Sort by decreasing time and return key value pairs
362: my $idx = 1;
363: foreach my $item (reverse(sort(keys(%time_hash)))) {
364: $return_hash{$time_hash{$item}} =
365: &unescape((split(/\&/,$recent{$time_hash{$item}}))[1]);
366: if ($n && ($idx++ >= $n)) {last;}
367: }
368:
369: return %return_hash;
370: }
371:
372: sub get_recent_frozen {
373: my ($area) = @_;
374: my %recent=&Apache::lonnet::dump(&recent_filename($area));
375:
376: # Create hash with all 'frozen' items
377: my %return_hash = ();
378: foreach my $item (keys(%recent)) {
379: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
380: if ($thistime eq 'always_include') {
381: $return_hash{$item} = &unescape($thisvalue);
382: }
383: }
384: return %return_hash;
385: }
386:
387:
388:
389: =pod
390:
391: =item &textbox()
392:
393: =cut
394:
395: ##############################################
396: ##############################################
397: sub textbox {
398: my ($name,$value,$size,$special) = @_;
399: $size = 40 if (! defined($size));
400: $value = &HTML::Entities::encode($value,'<>&"');
401: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
402: 'value="'.$value.'" '.$special.' />';
403: return $Str;
404: }
405:
406: ##############################################
407: ##############################################
408:
409: =pod
410:
411: =item &checkbox()
412:
413: =cut
414:
415: ##############################################
416: ##############################################
417: sub checkbox {
418: my ($name,$checked,$value,$special) = @_;
419: my $Str = '<input type="checkbox" name="'.$name.'" ';
420: if (defined($value)) {
421: $Str .= 'value="'.$value.'"';
422: }
423: if ($checked) {
424: $Str .= ' checked="checked"';
425: }
426: $Str .= $special.' />';
427: return $Str;
428: }
429:
430:
431: =pod
432:
433: =item &radiobutton()
434:
435: =cut
436:
437: ##############################################
438: ##############################################
439: sub radio {
440: my ($name,$checked,$value) = @_;
441: my $Str = '<input type="radio" name="'.$name.'" ';
442: if (defined($value)) {
443: $Str .= 'value="'.$value.'"';
444: }
445: if ($checked eq $value) {
446: $Str .= ' checked="checked"';
447: }
448: $Str .= ' />';
449: return $Str;
450: }
451:
452: ##############################################
453: ##############################################
454:
455: =pod
456:
457: =item &date_setter()
458:
459: &date_setter returns html and javascript for a compact date-setting form.
460: To retrieve values from it, use &get_date_from_form.
461:
462: Inputs
463:
464: =over 4
465:
466: =item $dname
467:
468: The name to prepend to the form elements.
469: The form elements defined will be dname_year, dname_month, dname_day,
470: dname_hour, dname_min, and dname_sec.
471:
472: =item $currentvalue
473:
474: The current setting for this time parameter. A unix format time
475: (time in seconds since the beginning of Jan 1st, 1970, GMT.
476: An undefined value is taken to indicate the value is the current time
477: unless it is requested to leave it empty. See $includeempty.
478: Also, to be explicit, a value of 'now' also indicates the current time.
479:
480: =item $special
481:
482: Additional html/javascript to be associated with each element in
483: the date_setter. See lonparmset for example usage.
484:
485: =item $includeempty
486:
487: If it is set (true) and no date/time value is provided,
488: the date/time fields are left empty.
489:
490: =item $state
491:
492: Specifies the initial state of the form elements. Either 'disabled' or empty.
493: Defaults to empty, which indicates the form elements are not disabled.
494:
495: =item $no_hh_mm_ss
496:
497: If true, text boxes for hours, minutes and seconds are omitted.
498:
499: =item $defhour
500:
501: Default value for hours (a default of 0 is used otherwise).
502:
503: =item $defmin
504:
505: Default value for minutes (a default of 0 is used otherwise).
506:
507: =item defsec
508:
509: Default value for seconds (a default of 0 is used otherwise).
510:
511: =item $nolink
512:
513: If true, a "Select calendar" link (to pop-up a calendar) is not displayed
514: to the right of the items.
515:
516: =item $no_mm_ss
517:
518: If true, text boxes for minutes and seconds are omitted.
519:
520: =item $no_ss
521:
522: If true, text boxes for seconds are omitted.
523:
524: =back
525:
526: Bugs
527:
528: The method used to restrict user input will fail in the year 2400.
529:
530: =cut
531:
532: ##############################################
533: ##############################################
534: sub date_setter {
535: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
536: $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink,$no_mm_ss,$no_ss) = @_;
537: my $now = time;
538:
539: my $tzname;
540: my ($sec,$min,$hour,$mday,$month,$year) = ('', '', undef,''.''.'');
541: #other potentially useful values: wkday,yrday,is_daylight_savings
542:
543: if (! defined($state) || $state ne 'disabled') {
544: $state = '';
545: } else {
546: $state = 'disabled="disabled"';
547: }
548: if (! defined($no_hh_mm_ss)) {
549: $no_hh_mm_ss = 0;
550: }
551: if ($currentvalue eq 'now') {
552: $currentvalue = $now;
553: }
554:
555: # Default value: Set empty date field to current time
556: # unless empty inclusion is requested
557: if ((!$includeempty) && (!$currentvalue)) {
558: $currentvalue = $now;
559: }
560: # Do we have a date? Split it!
561: if ($currentvalue) {
562: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue);
563:
564: #No values provided for hour, min, sec? Use default 0
565: if (($defhour) || ($defmin) || ($defsec)) {
566: $sec = ($defsec ? $defsec : 0);
567: $min = ($defmin ? $defmin : 0);
568: $hour = ($defhour ? $defhour : 0);
569: }
570: }
571: my $result = "\n<!-- $dname date setting form -->\n";
572: $result .= <<ENDJS;
573: <script type="text/javascript">
574: // <![CDATA[
575: function $dname\_checkday() {
576: var day = document.$formname.$dname\_day.value;
577: var month = document.$formname.$dname\_month.value;
578: var year = document.$formname.$dname\_year.value;
579: var valid = true;
580: if (day < 1) {
581: document.$formname.$dname\_day.value = 1;
582: }
583: if (day > 31) {
584: document.$formname.$dname\_day.value = 31;
585: }
586: if ((month == 1) || (month == 3) || (month == 5) ||
587: (month == 7) || (month == 8) || (month == 10) ||
588: (month == 12)) {
589: if (day > 31) {
590: document.$formname.$dname\_day.value = 31;
591: day = 31;
592: }
593: } else if (month == 2 ) {
594: if ((year % 4 == 0) && (year % 100 != 0)) {
595: if (day > 29) {
596: document.$formname.$dname\_day.value = 29;
597: }
598: } else if (day > 29) {
599: document.$formname.$dname\_day.value = 28;
600: }
601: } else if (day > 30) {
602: document.$formname.$dname\_day.value = 30;
603: }
604: }
605:
606: function $dname\_disable() {
607: document.$formname.$dname\_month.disabled=true;
608: document.$formname.$dname\_day.disabled=true;
609: document.$formname.$dname\_year.disabled=true;
610: document.$formname.$dname\_hour.disabled=true;
611: document.$formname.$dname\_minute.disabled=true;
612: document.$formname.$dname\_second.disabled=true;
613: }
614:
615: function $dname\_enable() {
616: document.$formname.$dname\_month.disabled=false;
617: document.$formname.$dname\_day.disabled=false;
618: document.$formname.$dname\_year.disabled=false;
619: document.$formname.$dname\_hour.disabled=false;
620: document.$formname.$dname\_minute.disabled=false;
621: document.$formname.$dname\_second.disabled=false;
622: }
623:
624: function $dname\_opencalendar() {
625: if (! document.$formname.$dname\_month.disabled) {
626: var calwin=window.open(
627: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
628: document.$formname.$dname\_month.value+"&year="+
629: document.$formname.$dname\_year.value,
630: "LONCAPAcal",
631: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
632: }
633:
634: }
635: // ]]>
636: </script>
637: ENDJS
638: $result .= ' <span class="LC_nobreak">';
639: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
640: # Month
641: my @Months = qw/January February March April May June
642: July August September October November December/;
643: # Pad @Months with a bogus value to make indexing easier
644: unshift(@Months,'If you can read this an error occurred');
645: if ($includeempty) { $monthselector.="<option value=''></option>"; }
646: for(my $m = 1;$m <=$#Months;$m++) {
647: $monthselector .= qq{ <option value="$m"};
648: $monthselector .= ' selected="selected"' if ($m-1 eq $month);
649: $monthselector .= '> '.&mt($Months[$m]).' </option>'."\n";
650: }
651: $monthselector.= ' </select>';
652: # Day
653: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
654: # Year
655: my $yearselector = qq{<input type="text" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
656: #
657: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
658: if ($includeempty) {
659: $hourselector.=qq{<option value=''></option>};
660: }
661: for (my $h = 0;$h<24;$h++) {
662: $hourselector .= qq{<option value="$h"};
663: $hourselector .= ' selected="selected"' if (defined($hour) && $hour == $h);
664: $hourselector .= ">";
665: my $timest='';
666: if ($h == 0) {
667: $timest .= "12 am";
668: } elsif($h == 12) {
669: $timest .= "12 noon";
670: } elsif($h < 12) {
671: $timest .= "$h am";
672: } else {
673: $timest .= $h-12 ." pm";
674: }
675: $timest=&mt($timest);
676: $hourselector .= $timest." </option>\n";
677: }
678: $hourselector .= " </select>\n";
679: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
680: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
681: my $cal_link;
682: unless (($nolink) || ($state eq 'disabled')) {
683: $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
684: }
685: #
686: my $tzone = ' '.$tzname.' ';
687: if ($no_hh_mm_ss) {
688: $result .= &mt('[_1] [_2] [_3] ',
689: $monthselector,$dayselector,$yearselector).
690: $tzone;
691: } elsif ($no_mm_ss) {
692: $result .= &mt('[_1] [_2] [_3] [_4]',
693: $monthselector,$dayselector,$yearselector,
694: $hourselector).
695: $tzone;
696: } elsif ($no_ss) {
697: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m',
698: $monthselector,$dayselector,$yearselector,
699: $hourselector,$minuteselector).
700: $tzone;
701: } else {
702: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
703: $monthselector,$dayselector,$yearselector,
704: $hourselector,$minuteselector,$secondselector).
705: $tzone;
706: }
707: unless (($nolink) || ($state eq 'disabled')) {
708: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
709: }
710: $result .= "</span>\n<!-- end $dname date setting form -->\n";
711: return $result;
712: }
713:
714: sub get_timedates {
715: my ($epoch) = @_;
716: my $dt = DateTime->from_epoch(epoch => $epoch)
717: ->set_time_zone(&Apache::lonlocal::gettimezone());
718: my $tzname = $dt->time_zone_short_name();
719: my $sec = $dt->second;
720: my $min = $dt->minute;
721: my $hour = $dt->hour;
722: my $mday = $dt->day;
723: my $month = $dt->month;
724: if ($month) {
725: $month --;
726: }
727: my $year = $dt->year;
728: return ($tzname,$sec,$min,$hour,$mday,$month,$year);
729: }
730:
731: sub build_url {
732: my ($base, $fields)=@_;
733: my $url;
734: $url = $base.'?';
735: foreach my $key (keys(%$fields)) {
736: $url.=&escape($key).'='.&escape($$fields{$key}).'&';
737: }
738: $url =~ s/&$//;
739: return $url;
740: }
741:
742:
743: ##############################################
744: ##############################################
745:
746: =pod
747:
748: =item &get_date_from_form()
749:
750: get_date_from_form retrieves the date specified in an &date_setter form.
751:
752: Inputs:
753:
754: =over 4
755:
756: =item $dname
757:
758: The name passed to &date_setter, which prefixes the form elements.
759:
760: =item $defaulttime
761:
762: The unix time to use as the default in case of poor inputs.
763:
764: =back
765:
766: Returns: Unix time represented in the form.
767:
768: =cut
769:
770: ##############################################
771: ##############################################
772: sub get_date_from_form {
773: my ($dname) = @_;
774: my ($sec,$min,$hour,$day,$month,$year);
775: #
776: if (defined($env{'form.'.$dname.'_second'})) {
777: my $tmpsec = $env{'form.'.$dname.'_second'};
778: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
779: $sec = $tmpsec;
780: }
781: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
782: } else {
783: $sec = 0;
784: }
785: if (defined($env{'form.'.$dname.'_minute'})) {
786: my $tmpmin = $env{'form.'.$dname.'_minute'};
787: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
788: $min = $tmpmin;
789: }
790: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
791: } else {
792: $min = 0;
793: }
794: if (defined($env{'form.'.$dname.'_hour'})) {
795: my $tmphour = $env{'form.'.$dname.'_hour'};
796: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
797: $hour = $tmphour;
798: }
799: } else {
800: $hour = 0;
801: }
802: if (defined($env{'form.'.$dname.'_day'})) {
803: my $tmpday = $env{'form.'.$dname.'_day'};
804: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
805: $day = $tmpday;
806: }
807: }
808: if (defined($env{'form.'.$dname.'_month'})) {
809: my $tmpmonth = $env{'form.'.$dname.'_month'};
810: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
811: $month = $tmpmonth;
812: }
813: }
814: if (defined($env{'form.'.$dname.'_year'})) {
815: my $tmpyear = $env{'form.'.$dname.'_year'};
816: if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
817: $year = $tmpyear;
818: }
819: }
820: if (($year<1970) || ($year>2037)) { return undef; }
821: if (defined($sec) && defined($min) && defined($hour) &&
822: defined($day) && defined($month) && defined($year)) {
823: my $timezone = &Apache::lonlocal::gettimezone();
824: my $dt = DateTime->new( year => $year,
825: month => $month,
826: day => $day,
827: hour => $hour,
828: minute => $min,
829: second => $sec,
830: time_zone => $timezone,
831: );
832: my $epoch_time = $dt->epoch;
833: if ($epoch_time ne '') {
834: return $epoch_time;
835: } else {
836: return undef;
837: }
838: } else {
839: return undef;
840: }
841: }
842:
843: ##############################################
844: ##############################################
845:
846: =pod
847:
848: =item &pjump_javascript_definition()
849:
850: Returns javascript defining the 'pjump' function, which opens up a
851: parameter setting wizard.
852:
853: =cut
854:
855: ##############################################
856: ##############################################
857: sub pjump_javascript_definition {
858: my $Str = <<END;
859: function pjump(type,dis,value,marker,ret,call,hour,min,sec,extra) {
860: openMyModal("/adm/rat/parameter.html?type="+escape(type)
861: +"&value="+escape(value)+"&marker="+escape(marker)
862: +"&return="+escape(ret)
863: +"&call="+escape(call)+"&name="+escape(dis)
864: +"&defhour="+escape(hour)+"&defmin="+escape(min)
865: +"&defsec="+escape(sec)+"&extra="+escape(extra)
866: +"&modal=1",350,350,'no');
867: }
868: END
869: return $Str;
870: }
871:
872: ##############################################
873: ##############################################
874:
875: =pod
876:
877: =item &javascript_nothing()
878:
879: Return an appropriate null for the users browser. This is used
880: as the first arguement for window.open calls when you want a blank
881: window that you can then write to.
882:
883: =cut
884:
885: ##############################################
886: ##############################################
887: sub javascript_nothing {
888: # mozilla and other browsers work with "''", but IE on mac does not.
889: my $nothing = "''";
890: my $user_browser;
891: my $user_os;
892: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
893: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
894: if (! defined($user_browser) || ! defined($user_os)) {
895: (undef,$user_browser,undef,undef,undef,$user_os) =
896: &Apache::loncommon::decode_user_agent();
897: }
898: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
899: $nothing = "'javascript:void(0);'";
900: }
901: return $nothing;
902: }
903:
904: ##############################################
905: ##############################################
906: sub javascript_docopen {
907: my ($mimetype) = @_;
908: $mimetype ||= 'text/html';
909: # safari does not understand document.open() and loads "text/html"
910: my $nothing = "''";
911: my $user_browser;
912: my $user_os;
913: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
914: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
915: if (! defined($user_browser) || ! defined($user_os)) {
916: (undef,$user_browser,undef,undef,undef,$user_os) =
917: &Apache::loncommon::decode_user_agent();
918: }
919: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
920: $nothing = "document.clear()";
921: } else {
922: $nothing = "document.open('$mimetype','replace')";
923: }
924: return $nothing;
925: }
926:
927:
928: ##############################################
929: ##############################################
930:
931: =pod
932:
933: =item &StatusOptions()
934:
935: Returns html for a selection box which allows the user to choose the
936: enrollment status of students. The selection box name is 'Status'.
937:
938: Inputs:
939:
940: $status: the currently selected status. If undefined the value of
941: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
942: is used.
943:
944: $formname: The name of the form. If defined the onchange attribute of
945: the selection box is set to document.$formname.submit().
946:
947: $size: the size (number of lines) of the selection box.
948:
949: $onchange: javascript to use when the value is changed. Enclosed in
950: double quotes, ""s, not single quotes.
951:
952: Returns: a perl string as described.
953:
954: =cut
955:
956: ##############################################
957: ##############################################
958: sub StatusOptions {
959: my ($status, $formName,$size,$onchange,$mult)=@_;
960: $size = 1 if (!defined($size));
961: if (! defined($status)) {
962: $status = 'Active';
963: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
964: }
965:
966: my $Str = '';
967: $Str .= '<select name="Status"';
968: if (defined($mult)){
969: $Str .= ' multiple="multiple" ';
970: }
971: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
972: $Str .= ' onchange="document.'.$formName.'.submit()"';
973: }
974: if (defined($onchange)) {
975: $Str .= ' onchange="'.$onchange.'"';
976: }
977: $Str .= ' size="'.$size.'" ';
978: $Str .= '>'."\n";
979: foreach my $type (['Active', &mt('Currently Has Access')],
980: ['Future', &mt('Will Have Future Access')],
981: ['Expired', &mt('Previously Had Access')],
982: ['Any', &mt('Any Access Status')]) {
983: my ($name,$label) = @$type;
984: $Str .= '<option value="'.$name.'" ';
985: if ($status eq $name) {
986: $Str .= 'selected="selected" ';
987: }
988: $Str .= '>'.$label.'</option>'."\n";
989: }
990:
991: $Str .= '</select>'."\n";
992: }
993:
994: ########################################################
995: ########################################################
996:
997: =pod
998:
999: =item Progess Window Handling Routines
1000:
1001: These routines handle the creation, update, increment, and closure of
1002: progress windows. The progress window reports to the user the number
1003: of items completed and an estimate of the time required to complete the rest.
1004:
1005: =over 4
1006:
1007:
1008: =item &Create_PrgWin()
1009:
1010: Writes javascript to the client to open a progress window and returns a
1011: data structure used for bookkeeping.
1012:
1013: Inputs
1014:
1015: =over 4
1016:
1017: =item $r Apache request
1018:
1019: =item $number_to_do The total number of items being processed.
1020:
1021: =item $preamble Optional HTML to display before the progress bar.
1022:
1023: =back
1024:
1025: Returns a hash containing the progress state data structure.
1026: If $number_to_do is zero or null, an indeterminate progress bar will
1027: be used.
1028:
1029: =item &Update_PrgWin()
1030:
1031: Updates the text in the progress indicator. Does not increment the count.
1032: See &Increment_PrgWin.
1033:
1034: Inputs:
1035:
1036: =over 4
1037:
1038: =item $r Apache request
1039:
1040: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
1041:
1042: =item $displaystring The string to write to the status indicator
1043:
1044: =back
1045:
1046: Returns: none
1047:
1048:
1049: =item Increment_PrgWin()
1050:
1051: Increment the count of items completed for the progress window by $step or 1 if no step is provided.
1052:
1053: Inputs:
1054:
1055: =over 4
1056:
1057: =item $r Apache request
1058:
1059: =item $prog_state Pointer to the data structure returned by Create_PrgWin
1060:
1061: =item $extraInfo A description of the items being iterated over. Typically
1062: 'student'.
1063:
1064: =item $step (optional) counter step. Will be set to default 1 if ommited. step must be greater than 0 or empty.
1065:
1066: =back
1067:
1068: Returns: none
1069:
1070:
1071: =item &Close_PrgWin()
1072:
1073: Closes the progress window.
1074:
1075: Inputs:
1076:
1077: =over 4
1078:
1079: =item $r Apache request
1080:
1081: =item $prog_state Pointer to the data structure returned by Create_PrgWin
1082:
1083: =back
1084:
1085: Returns: none
1086:
1087: =back
1088:
1089: =cut
1090:
1091: ########################################################
1092: ########################################################
1093:
1094:
1095: # Create progress
1096: sub Create_PrgWin {
1097: my ($r,$number_to_do,$preamble)=@_;
1098: my %prog_state;
1099: $prog_state{'done'}=0;
1100: $prog_state{'firststart'}=&Time::HiRes::time();
1101: $prog_state{'laststart'}=&Time::HiRes::time();
1102: $prog_state{'max'}=$number_to_do;
1103: &Apache::loncommon::LCprogressbar($r,$prog_state{'max'},$preamble);
1104: return %prog_state;
1105: }
1106:
1107: # update progress
1108: sub Update_PrgWin {
1109: my ($r,$prog_state,$displayString)=@_;
1110: &Apache::loncommon::LCprogressbarUpdate($r,undef,$displayString,$$prog_state{'max'});
1111: $$prog_state{'laststart'}=&Time::HiRes::time();
1112: }
1113:
1114: # increment progress state
1115: sub Increment_PrgWin {
1116: my ($r,$prog_state,$extraInfo,$step)=@_;
1117: $step = $step > 0 ? $step : 1;
1118: $$prog_state{'done'} += $step;
1119:
1120: # Catch (max modulo step) <> 0
1121: my $current = $$prog_state{'done'};
1122: my $last = ($$prog_state{'max'} - $current);
1123: if ($last <= 0) {
1124: $last = 1;
1125: $current = $$prog_state{'max'};
1126: }
1127:
1128: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
1129: $current * $last;
1130: $time_est = int($time_est);
1131: #
1132: my $min = int($time_est/60);
1133: my $sec = $time_est % 60;
1134:
1135: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
1136: if ($lasttime > 9) {
1137: $lasttime = int($lasttime);
1138: } elsif ($lasttime < 0.01) {
1139: $lasttime = 0;
1140: } else {
1141: $lasttime = sprintf("%3.2f",$lasttime);
1142: }
1143:
1144: $sec = 0 if ($min >= 10); # Don't show seconds if remaining time >= 10 min.
1145: $sec = 1 if ( ($min == 0) && ($sec == 0) ); # Little cheating: pretend to have 1 second remaining instead of 0 to have something to display
1146:
1147: my $timeinfo =
1148: &mt('[_1]/[_2]:'
1149: .' [quant,_3,minute,minutes,] [quant,_4,second ,seconds ,]remaining'
1150: .' ([quant,_5,second] for '.$extraInfo.')',
1151: $current,
1152: $$prog_state{'max'},
1153: $min,
1154: $sec,
1155: $lasttime);
1156: my $percent=0;
1157: if ($$prog_state{'max'}) {
1158: $percent=int(100.*$current/$$prog_state{'max'});
1159: }
1160: &Apache::loncommon::LCprogressbarUpdate($r,$percent,$timeinfo,$$prog_state{'max'});
1161: $$prog_state{'laststart'}=&Time::HiRes::time();
1162: }
1163:
1164: # close Progress Line
1165: sub Close_PrgWin {
1166: my ($r,$prog_state)=@_;
1167: &Apache::loncommon::LCprogressbarClose($r);
1168: undef(%$prog_state);
1169: }
1170:
1171:
1172: # ------------------------------------------------------- Puts directory header
1173:
1174: sub crumbs {
1175: my ($uri,$target,$prefix,$form,$skiplast,$onclick)=@_;
1176: # You cannot crumbnify uploaded or adm resources
1177: if ($uri=~/^\/*(uploaded|adm)\//) { return &mt('(Internal Course/Community Content)'); }
1178: if ($target) {
1179: $target = ' target="'.
1180: &Apache::loncommon::escape_single($target).'"';
1181: }
1182: my $output='<span class="LC_filename">';
1183: $output.=$prefix.'/';
1184: if (($env{'user.adv'}) || ($env{'user.author'})) {
1185: my $path=$prefix.'/';
1186: foreach my $dir (split('/',$uri)) {
1187: if (! $dir) { next; }
1188: $path .= $dir;
1189: if ($path eq $uri) {
1190: if ($skiplast) {
1191: $output.=$dir;
1192: last;
1193: }
1194: } else {
1195: $path.='/';
1196: }
1197: if ($path eq '/res/') {
1198: unless (&Apache::lonnet::allowed('bre',$path)) {
1199: $output.="$dir/";
1200: next;
1201: }
1202: }
1203: my $href_path = &HTML::Entities::encode($path,'<>&"');
1204: &Apache::loncommon::inhibit_menu_check(\$href_path);
1205: if ($form) {
1206: my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
1207: $output.=qq{<a href="$href"$onclick$target>$dir</a>/};
1208: } else {
1209: $output.=qq{<a href="$href_path"$onclick$target>$dir</a>/};
1210: }
1211: }
1212: } else {
1213: foreach my $dir (split('/',$uri)) {
1214: if (! $dir) { next; }
1215: $output.=$dir.'/';
1216: }
1217: }
1218: if ($uri !~ m|/$|) { $output=~s|/$||; }
1219: $output.='</span>';
1220:
1221:
1222: return $output;
1223: }
1224:
1225: # --------------------- A function that generates a window for the spellchecker
1226:
1227: sub spellheader {
1228: my $start_page=
1229: &Apache::loncommon::start_page('Speller Suggestions',undef,
1230: {'only_body' => 1,
1231: 'js_ready' => 1,
1232: 'bgcolor' => '#DDDDDD',
1233: 'add_entries' => {
1234: 'onload' =>
1235: 'document.forms.spellcheckform.submit()',
1236: }
1237: });
1238: my $end_page=
1239: &Apache::loncommon::end_page({'js_ready' => 1});
1240:
1241: my $nothing=&javascript_nothing();
1242: return (<<ENDCHECK);
1243: <script type="text/javascript">
1244: // <![CDATA[
1245: //<!-- BEGIN LON-CAPA Internal
1246: var checkwin;
1247:
1248: function spellcheckerwindow(string) {
1249: var esc_string = string.replace(/\"/g,'"');
1250: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1251: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1252: checkwin.document.close();
1253: }
1254: // END LON-CAPA Internal -->
1255: // ]]>
1256: </script>
1257: ENDCHECK
1258: }
1259:
1260: # ---------------------------------- Generate link to spell checker for a field
1261:
1262: sub spelllink {
1263: my ($form,$field)=@_;
1264: my $linktext=&mt('Check Spelling');
1265: return (<<ENDLINK);
1266: <a href="javascript:if (typeof(document.$form.onsubmit)!='undefined') { if (document.$form.onsubmit!=null) { document.$form.onsubmit();}};spellcheckerwindow(this.document.forms.$form.$field.value);">$linktext</a>
1267: ENDLINK
1268: }
1269:
1270: # ------------------------------------------------- Output headers for CKEditor
1271:
1272: sub htmlareaheaders {
1273: my $s="";
1274: if (&htmlareabrowser()) {
1275: $s.=(<<ENDEDITOR);
1276: <script type="text/javascript" src="/ckeditor/ckeditor.js"></script>
1277: ENDEDITOR
1278: }
1279: $s.=(<<ENDJQUERY);
1280: <script type="text/javascript" src="/adm/jQuery/js/jquery-3.2.1.min.js"></script>
1281: <script type="text/javascript" src="/adm/jQuery/js/jquery-ui-1.12.1.custom.min.js"></script>
1282: <link rel="stylesheet" type="text/css" href="/adm/jQuery/css/smoothness/jquery-ui-1.12.1.custom.min.css" />
1283: <script type="text/javascript" src="/adm/jpicker/js/jpicker-1.1.6.min.js" >
1284: </script>
1285: <link rel="stylesheet" type="text/css" href="/adm/jpicker/css/jPicker-1.1.6.min.css" />
1286: <script type="text/javascript" src="/adm/countdown/js/jquery.countdown.min.js"></script>
1287: <link rel="stylesheet" type="text/css" href="/adm/countdown/css/jquery.countdown.css" />
1288:
1289: <script type="text/javascript" src="/adm/spellchecker/js/jquery.spellchecker.min.js"></script>
1290: <link rel="stylesheet" type="text/css" href="/adm/spellchecker/css/spellchecker.css" />
1291: <script type="text/javascript" src="/adm/nicescroll/jquery.nicescroll.min.js"></script>
1292:
1293: ENDJQUERY
1294: return $s;
1295: }
1296:
1297: # ----------------------------------------------------------------- Preferences
1298:
1299: # ------------------------------------------------- lang to use in html editor
1300: sub htmlarea_lang {
1301: my $lang='en';
1302: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1303: $lang=&mt('htmlarea_lang');
1304: }
1305: return $lang;
1306: }
1307:
1308: # return javacsript to activate elements of .colorchooser with jpicker:
1309: # Caller is responsible for enclosing this in <script> tags:
1310: #
1311: sub color_picker {
1312: return '
1313: $(document).ready(function(){
1314: $.fn.jPicker.defaults.images.clientPath="/adm/jpicker/images/";
1315: $(".colorchooser").jPicker({window: { position: {x: "screenCenter", y: "bottom"}}});
1316: });';
1317: }
1318:
1319: # ----------------------------------------- Script to activate only some fields
1320:
1321: sub htmlareaselectactive {
1322: my ($args) = @_;
1323: unless (&htmlareabrowser()) { return ''; }
1324: my $output='<script type="text/javascript" defer="defer">'."\n"
1325: .'// <![CDATA['."\n"
1326: .'//<!-- BEGIN LON-CAPA Internal'."\n";
1327: my $lang = &htmlarea_lang();
1328: my $fullpage = 'false';
1329: my ($dragmath_prefix,$dragmath_helpicon,$dragmath_whitespace);
1330: if (ref($args) eq 'HASH') {
1331: if (exists($args->{'lang'})) {
1332: if ($args->{'lang'} ne '') {
1333: $lang = $args->{'lang'};
1334: }
1335: }
1336: if (exists($args->{'fullpage'})) {
1337: if ($args->{'fullpage'} eq 'true') {
1338: $fullpage = $args->{'fullpage'};
1339: }
1340: }
1341: if (exists($args->{'dragmath'})) {
1342: if ($args->{'dragmath'} ne '') {
1343: $dragmath_prefix = $args->{'dragmath'};
1344: $dragmath_helpicon=&Apache::loncommon::lonhttpdurl("/adm/help/help.png");
1345: $dragmath_whitespace=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/transparent1x1.gif");
1346: }
1347: }
1348: }
1349:
1350: my %lt = &Apache::lonlocal::texthash(
1351: 'plain' => 'Plain text',
1352: 'rich' => 'Rich formatting',
1353: 'plain_title' => 'Disable rich text formatting and edit in plain text',
1354: 'rich_title' => 'Enable rich text formatting (bold, italic, etc.)',
1355: );
1356:
1357: $output.='
1358:
1359: function containsBlockHtml(id) {
1360: 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);
1361: return (re >= 0);
1362: }
1363:
1364: function startRichEditor(id) {
1365: // fix character entities inside <m>
1366: // NOTE: this is not fixing characters inside <parse>
1367: // NOTE: < and > inside <chem> should fix automatically because there should not be a letter after <.
1368: var ta = document.getElementById(id);
1369: var value = ta.value;
1370: var in_m = false; // in the m element
1371: var in_text = false; // in the text inside the m element
1372: var im = -1; // position of <m>
1373: var it = -1; // position of the text inside
1374: for (var i=0; i<value.length; i++) {
1375: if (value.substr(i, 2) == "<m") {
1376: // ignore previous <m> if found twice
1377: in_m = true;
1378: in_text = false;
1379: im = i;
1380: it = -1;
1381: } else if (in_m) {
1382: if (!in_text) {
1383: if (value.charAt(i) == ">") {
1384: in_text = true;
1385: it = i+1;
1386: }
1387: } else if (value.substr(i, 4) == "</m>") {
1388: in_m = false;
1389: var text = value.substr(it, i-it);
1390: var l1 = text.length;
1391: text = text.replace(/</g, "<");
1392: text = text.replace(/>/g, ">");
1393: var l2 = text.length;
1394: value = value.substr(0, it) + text + "</m>" + value.substr(i+4);
1395: i = i + (l2-l1);
1396: }
1397: }
1398: }
1399: ta.value = value;
1400: CKEDITOR.replace(id,
1401: {
1402: customConfig: "/ckeditor/loncapaconfig.js",
1403: language : "'.$lang.'",
1404: fullPage : '.$fullpage.',
1405: }
1406: );
1407: }
1408:
1409: function destroyRichEditor(id) {
1410: CKEDITOR.instances[id].destroy();
1411: // replace character entities < and > in <m> and <chem>
1412: // and "&fctname(" by "&fctname("
1413: // and the quotes inside functions: "&fct(1, "a")" -> "&fct(1, "a")"
1414: var ta = document.getElementById(id);
1415: var value = ta.value;
1416: var in_element = false; // in the m or chem element
1417: var tagname = ""; // m or chem
1418: var in_text = false; // in the text inside the element
1419: var im = -1; // position of start tag
1420: var it = -1; // position of the text inside
1421: for (var i=0; i<value.length; i++) {
1422: if (value.substr(i, 2) == "<m" || value.substr(i, 5) == "<chem") {
1423: // ignore previous tags if found twice
1424: in_element = true;
1425: if (value.substr(i, 2) == "<m")
1426: tagname = "m";
1427: else
1428: tagname = "chem";
1429: in_text = false;
1430: im = i;
1431: it = -1;
1432: } else if (in_element) {
1433: if (!in_text) {
1434: if (value.charAt(i) == ">") {
1435: in_text = true;
1436: it = i+1;
1437: }
1438: } else if (value.substr(i, 3+tagname.length) == "</"+tagname+">") {
1439: in_element = false;
1440: var text = value.substr(it, i-it);
1441: var l1 = text.length;
1442: text = text.replace(/</g, "<");
1443: text = text.replace(/>/g, ">");
1444: var l2 = text.length;
1445: value = value.substr(0, it) + text + value.substr(i);
1446: i = i + (l2-l1);
1447: }
1448: }
1449: }
1450: // fix function names
1451: value = value.replace(/&([a-zA-Z_]+)\(/g, "&$1(");
1452: // fix quotes in functions
1453: var pos_next_fct = value.search(/&[a-zA-Z_]+\(/);
1454: var depth = 0;
1455: for (var i=0; i<value.length; i++) {
1456: if (i == pos_next_fct) {
1457: depth++;
1458: var sub = value.substring(i+1);
1459: var pos2 = sub.search(/&[a-zA-Z_]+\(/);
1460: if (pos2 == -1)
1461: pos_next_fct = -1;
1462: else
1463: pos_next_fct = i + 1 + pos2;
1464: } else if (depth > 0) {
1465: if (value.charAt(i) == ")")
1466: depth--;
1467: else if (value.substr(i, 6) == """)
1468: value = value.substr(0, i) + "\"" + value.substr(i+6);
1469: }
1470: }
1471: // replace the text value
1472: ta.value = value;
1473: }
1474:
1475: function editorHandler(event) {
1476: var rawid = $(this).attr("id");
1477: var id = new RegExp("LC_rt_(.*)").exec(rawid)[1];
1478: event.preventDefault();
1479: var rt_enabled = $(this).hasClass("LC_enable_rt");
1480: if (rt_enabled) {
1481: startRichEditor(id);
1482: $("#LC_rt_"+id).html("<b>« '.$lt{'plain'}.'</b>");
1483: $("#LC_rt_"+id).attr("title", "'.$lt{'plain_title'}.'");
1484: $("#LC_rt_"+id).addClass("LC_disable_rt");
1485: $("#LC_rt_"+id).removeClass("LC_enable_rt");
1486: } else {
1487: destroyRichEditor(id);
1488: $("#LC_rt_"+id).html("<b>'.$lt{'rich'}.' »</b>");
1489: $("#LC_rt_"+id).attr("title", "'.$lt{'rich_title'}.'");
1490: $("#LC_rt_"+id).addClass("LC_enable_rt");
1491: $("#LC_rt_"+id).removeClass("LC_disable_rt");
1492: }';
1493: if ($dragmath_prefix ne '') {
1494: $output .= "\n var visible = '';
1495: if (rt_enabled) {
1496: visible = 'none';
1497: }
1498: editmath_visibility(id,visible);\n";
1499: }
1500: $output .= '
1501: }
1502: $(document).ready(function(){
1503: $(".LC_richAlwaysOn").each(function() {
1504: startRichEditor($(this).attr("id"));
1505: });
1506: $(".LC_richDetectHtml").each(function() {
1507: var id = $(this).attr("id");
1508: var rt_enabled = containsBlockHtml(id);
1509: if(rt_enabled) {
1510: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'plain_title'}.'\" class=\"LC_disable_rt\"><b>« '.$lt{'plain'}.'</b></a></div>");
1511: startRichEditor(id);
1512: $("#LC_rt_"+id).click(editorHandler);
1513: }
1514: else {
1515: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'rich_title'}.'\" class=\"LC_enable_rt\"><b>'.$lt{'rich'}.' »</b></a></div>");
1516: $("#LC_rt_"+id).click(editorHandler);
1517: }';
1518: if ($dragmath_prefix ne '') {
1519: $output .= "\n var visible = '';
1520: if (rt_enabled) {
1521: visible = 'none';
1522: }
1523: editmath_visibility(id,visible);\n";
1524: }
1525: $output .= '
1526: });
1527: $(".LC_richDefaultOn").each(function() {
1528: var id = $(this).attr("id");
1529: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'plain_title'}.'\" class=\"LC_disable_rt\"><b>« '.$lt{'plain'}.'</b></a></div>");
1530: startRichEditor(id);
1531: $("#LC_rt_"+id).click(editorHandler);
1532: });
1533: $(".LC_richDefaultOff").each(function() {
1534: var id = $(this).attr("id");
1535: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'rich_title'}.'\" class=\"LC_enable_rt\"><b>'.$lt{'rich'}.' »</b></a></div>");
1536: $("#LC_rt_"+id).click(editorHandler);
1537: });
1538:
1539:
1540: });
1541: ';
1542: $output .= &color_picker;
1543:
1544: # Code to put a due date countdown in 'duedatecountdown' span.
1545: # This is currently located in the breadcrumb headers.
1546: # note that the dueDateLayout is internatinoalized below.
1547: # Here document is used to support the substitution into the javascript below.
1548: # ..which unforunately necessitates escaping the $'s in the javascript.
1549: # There are several times of importance
1550: #
1551: # serverDueDate - The absolute time at which the problem expires.
1552: # serverTime - The server's time when the problem finished computing.
1553: # clientTime - The client's time...as close to serverTime as possible.
1554: # The clientTime will be slightly later due to
1555: # 1. The latency between problem computation and
1556: # the first network action.
1557: # 2. The time required between the page load-start and the actual
1558: # initial javascript execution that got clientTime.
1559: # These are used as follows:
1560: # The difference between clientTime and serverTime are used to
1561: # correct for differences in clock settings between the browser's system and the
1562: # server's.
1563: #
1564: # The difference between clientTime and the time at which the ready() method
1565: # starts executing is used to estimate latencies for page load and submission.
1566: # Since this is an estimate, it is doubled. The latency estimate + one minute
1567: # is used to determine when the countdown timer turns red to warn the user
1568: # to think about submitting.
1569:
1570: my $dueDateLayout = &mt('Due in: {dn} {dl} {hnn}{sep}{mnn}{sep}{snn} [_1]',
1571: "<span id='submitearly'></span>");
1572: my $early = '- <b>'.&mt('Submit Early').'</b>';
1573: my $pastdue = '- <b>'.&mt('Past Due').'</b>';
1574: $output .= <<JAVASCRIPT;
1575:
1576: var documentReadyTime;
1577:
1578: \$(document).ready(function() {
1579: if (typeof(dueDate) != "undefined") {
1580: documentReadyTime = (new Date()).getTime();
1581: \$("#duedatecountdown").countdown({until: dueDate, compact: true,
1582: layout: "$dueDateLayout",
1583: onTick: function (periods) {
1584: var latencyEstimate = (documentReadyTime - clientTime) * 2;
1585: if(\$.countdown.periodsToSeconds(periods) < (300 + latencyEstimate)) {
1586: \$("#submitearly").html("$early");
1587: if (\$.countdown.periodsToSeconds(periods) < 1) {
1588: \$("#submitearly").html("$pastdue");
1589: }
1590: }
1591: if(\$.countdown.periodsToSeconds(periods) < (60 + latencyEstimate)) {
1592: \$(this).css("color", "red"); //Highlight last minute.
1593: }
1594: }
1595: });
1596: }
1597: });
1598:
1599: /* This code describes the spellcheck options that will be used for
1600: items with class 'spellchecked'. It is necessary for those objects'
1601: to explicitly request checking (e.g. onblur is a nice event for that).
1602: */
1603: \$(document).ready(function() {
1604: \$(".spellchecked").spellchecker({
1605: url: "/ajax/spellcheck",
1606: lang: "en",
1607: engine: "pspell",
1608: suggestionBoxPosition: "below",
1609: innerDocument: true
1610: });
1611: \$("textarea.spellchecked").spellchecker({
1612: url: "/ajax/spellcheck",
1613: lang: "en",
1614: engine: "pspell",
1615: suggestionBoxPosition: "below",
1616: innerDocument: true
1617: });
1618:
1619: });
1620:
1621: /* the muli colored editor can generate spellcheck with language 'none'
1622: to disable spellcheck as well
1623: */
1624: function doSpellcheck(element, lang) {
1625: if (lang != 'none') {
1626: \$(element).spellchecker('option', {lang: lang});
1627: \$(element).spellchecker('check');
1628: }
1629: }
1630:
1631:
1632: JAVASCRIPT
1633: if ($dragmath_prefix ne '') {
1634: $output .= '
1635:
1636: function editmath_visibility(id,value) {
1637:
1638: if ((id == "") || (id == null)) {
1639: return;
1640: }
1641: var mathid = "'.$dragmath_prefix.'_"+id;
1642: mathele = document.getElementById(mathid);
1643: if (mathele == null) {
1644: return;
1645: }
1646: mathele.style.display = value;
1647: var mathhelpicon = "'.$dragmath_prefix.'helpicon'.'_"+id;
1648: mathhelpiconele = document.getElementById(mathhelpicon);
1649: if (mathhelpiconele == null) {
1650: return;
1651: }
1652: if (value == "none") {
1653: mathhelpiconele.src = "'.$dragmath_whitespace.'";
1654: } else {
1655: mathhelpiconele.src = "'.$dragmath_helpicon.'";
1656: }
1657: }
1658: ';
1659:
1660: }
1661: $output.="\nwindow.status='Activated Editfields';\n"
1662: .'// END LON-CAPA Internal -->'."\n"
1663: .'// ]]>'."\n"
1664: .'</script>';
1665: return $output;
1666: }
1667:
1668: # --------------------------------------------------------------------- Blocked
1669:
1670: sub htmlareablocked {
1671: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1672: return 0;
1673: }
1674:
1675: # ---------------------------------------- Browser capable of running HTMLArea?
1676:
1677: sub htmlareabrowser {
1678: return 1;
1679: }
1680:
1681: #
1682: # Should the "return to content" link be shown?
1683: #
1684:
1685: sub show_return_link {
1686:
1687: unless ($env{'request.course.id'}) { return 0; }
1688: if ($env{'request.noversionuri'}=~m{^/priv/} ||
1689: $env{'request.uri'}=~m{^/priv/}) { return 1; }
1690: return if ($env{'request.noversionuri'} eq '/adm/supplemental');
1691:
1692: if (($env{'request.noversionuri'} =~ m{^/adm/(viewclasslist|navmaps)($|\?)})
1693: || ($env{'request.noversionuri'} =~ m{^/adm/.*/aboutme($|\?)})) {
1694:
1695: return if ($env{'form.register'});
1696: }
1697: return (($env{'request.noversionuri'}=~m{^/(res|public)/} &&
1698: $env{'request.symb'} eq '')
1699: ||
1700: ($env{'request.noversionuri'}=~ m{^/cgi-bin/printout.pl})
1701: ||
1702: (($env{'request.noversionuri'}=~/^\/adm\//) &&
1703: ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
1704: ($env{'request.noversionuri'}!~
1705: m{^/adm/.*/(smppg|bulletinboard|ext\.tool)($|\?)})
1706: ));
1707: }
1708:
1709:
1710: ##
1711: # Set the dueDate variable...note this is done in the timezone
1712: # of the browser.
1713: #
1714: # @param epoch relative time at which the problem is due.
1715: #
1716: # @return the javascript fragment to set the date:
1717: #
1718: sub set_due_date {
1719: my $dueStamp = shift;
1720: my $duems = $dueStamp * 1000; # Javascript Date object needs ms not seconds.
1721:
1722: my $now = time()*1000;
1723:
1724: # This slightly obscure bit of javascript sets the dueDate variable
1725: # to the time in the browser at which the problem was due.
1726: # The code should correct for gross differences between the server
1727: # and client's time setting
1728:
1729: return <<"END";
1730:
1731: <script type="text/javascript">
1732: //<![CDATA[
1733: var serverDueDate = $duems;
1734: var serverTime = $now;
1735: var clientTime = (new Date()).getTime();
1736: var dueDate = new Date(serverDueDate + (clientTime - serverTime));
1737:
1738: //]]>
1739: </script>
1740:
1741: END
1742: }
1743: ##
1744: # Sets the time at which the problem finished computing.
1745: # This just updates the serverTime and clientTime variables above.
1746: # Calling this in e.g. end_problem provides a better estimate of the
1747: # difference beetween the server and client time setting as
1748: # the difference contains less of the latency/problem compute time.
1749: #
1750: sub set_compute_end_time {
1751:
1752: my $now = time()*1000; # Javascript times are in ms.
1753: return <<"END";
1754:
1755: <script type="text/javascript">
1756: //<![CDATA[
1757: serverTime = $now;
1758: clientTime = (new Date()).getTime();
1759: //]]>
1760: </script>
1761:
1762: END
1763: }
1764:
1765: ############################################################
1766: ############################################################
1767:
1768: =pod
1769:
1770: =item &breadcrumbs()
1771:
1772: Compiles the previously registered breadcrumbs into an series of links.
1773: Additionally supports a 'component', which will be displayed on the
1774: right side of the breadcrumbs enclosing div (without a link).
1775: A link to help for the component will be included if one is specified.
1776:
1777: All inputs can be undef without problems.
1778:
1779: Inputs: $component (the text on the right side of the breadcrumbs trail),
1780: $component_help (the help item filename (without .tex extension).
1781: $menulink (boolean, controls whether to include a link to /adm/menu)
1782: $helplink (if 'nohelp' don't include the orange help link)
1783: $css_class (optional name for the class to apply to the table for CSS)
1784: $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
1785: when including the text on the right.
1786: $CourseBreadcrumbs (optional flag, 1 if &breadcrumbs called from &docs_breadcrumbs,
1787: because breadcrumbs are being)
1788: $topic_help (optional help item to be displayed on right side of the breadcrumbs
1789: row, using loncommon::help_open_topic() to generate the link.
1790: $topic_help_text (text to include in the link in the optional help item
1791: on the right side of the breadcrumbs row.
1792: $links_target optionally includes the target (_top, _parent or _self)
1793:
1794: Returns a string containing breadcrumbs for the current page.
1795:
1796: =item &clear_breadcrumbs()
1797:
1798: Clears the previously stored breadcrumbs.
1799:
1800: =item &add_breadcrumb()
1801:
1802: Pushes a breadcrumb on the stack of crumbs.
1803:
1804: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1805: are required. If present the keys 'faq' and 'bug' will be used to provide
1806: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title'
1807: and 'text' values won't be sent through &mt()
1808:
1809: returns: nothing
1810:
1811: =cut
1812:
1813: ############################################################
1814: ############################################################
1815: {
1816: my @Crumbs;
1817: my %tools = ();
1818:
1819: sub breadcrumbs {
1820: my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt,
1821: $CourseBreadcrumbs,$topic_help,$topic_help_text,$links_target) = @_;
1822: #
1823: $css_class ||= 'LC_breadcrumbs';
1824:
1825: # Make the faq and bug data cascade
1826: my $faq = '';
1827: my $bug = '';
1828: my $help = '';
1829: # Crumb Symbol
1830: my $crumbsymbol = '»';
1831: # The last breadcrumb does not have a link, so handle it separately.
1832: my $last = pop(@Crumbs);
1833: #
1834: # The first one should be the course or a menu link
1835: if (!defined($menulink)) { $menulink=1; }
1836: if ($menulink) {
1837: if ($env{'request.course.id'}) {
1838: my ($menucoll,$deeplinkmenu,$menuref) = &Apache::loncommon::menucoll_in_effect();
1839: if (($menucoll) && (ref($menuref) eq 'HASH')) {
1840: if ($menuref->{'main'} eq 'n') {
1841: undef($menulink);
1842: }
1843: }
1844: }
1845: }
1846: if ($menulink) {
1847: my $description = 'Menu';
1848: my $no_mt_descr = 0;
1849: if ((exists($env{'request.course.id'})) &&
1850: ($env{'request.course.id'} ne '') &&
1851: ($env{'course.'.$env{'request.course.id'}.'.description'} ne '')) {
1852: $description =
1853: $env{'course.'.$env{'request.course.id'}.'.description'};
1854: $no_mt_descr = 1;
1855: if ($env{'request.noversionuri'} =~
1856: m{^/?public/($match_domain)/($match_courseid)/syllabus$}) {
1857: unless (($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1) &&
1858: ($env{'course.'.$env{'request.course.id'}.'.num'} eq $2)) {
1859: $description = 'Menu';
1860: $no_mt_descr = 0;
1861: }
1862: }
1863: }
1864: my $target = '_top';
1865: if ($links_target) {
1866: $target = $links_target;
1867: } elsif (($env{'request.deeplink.login'}) && ($env{'request.deeplink.target'} eq '_self')) {
1868: $target = '';
1869: }
1870: $menulink = { href =>'/adm/menu',
1871: title =>'Go to main menu',
1872: target =>$target,
1873: text =>$description,
1874: no_mt =>$no_mt_descr, };
1875: if($last) {
1876: #$last set, so we have some crumbs
1877: unshift(@Crumbs,$menulink);
1878: } else {
1879: #only menulink crumb present
1880: $last = $menulink;
1881: }
1882: }
1883: my $links;
1884: if ((&show_return_link) && (!$CourseBreadcrumbs) && (ref($last) eq 'HASH')) {
1885: my $alttext = &mt('Go Back');
1886: my $hashref = { href => '/adm/flip?postdata=return:',
1887: title => &mt('Back to most recent content resource'),
1888: class => 'LC_menubuttons_link',
1889: };
1890: if ($links_target) {
1891: $hashref->{'target'} = $links_target;
1892: }
1893: $links=&htmltag( 'a','<img src="/res/adm/pages/tolastloc.png" alt="'.$alttext.'" class="LC_icon" />',
1894: $hashref);
1895: $links=&htmltag('li',$links);
1896: }
1897: $links.= join "",
1898: map {
1899: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1900: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1901: $help = $_->{'help'} if (exists($_->{'help'}));
1902:
1903: my $result = $_->{no_mt} ? $_->{text} : &mt($_->{text});
1904:
1905: if ($_->{href}){
1906: $result = &htmltag( 'a', $result,
1907: { href => $_->{href},
1908: title => $_->{no_mt} ? $_->{title} : &mt($_->{title}),
1909: target => $_->{target}, });
1910: }
1911:
1912: $result = &htmltag( 'li', "$result $crumbsymbol");
1913: } @Crumbs;
1914:
1915: #should the last Element be translated?
1916:
1917: my $lasttext = $last->{'no_mt'} ? $last->{'text'}
1918: : mt( $last->{'text'} );
1919:
1920: # last breadcrumb is the first order heading of a page
1921: # for course breadcrumbs it's just bold
1922:
1923: if ($lasttext ne '') {
1924: $links .= &htmltag( 'li', htmltag($CourseBreadcrumbs ? 'b' : 'h1',
1925: $lasttext), {title => $lasttext});
1926: }
1927:
1928: my $icons = '';
1929: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1930: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1931: $help = $last->{'help'} if (exists($last->{'help'}));
1932: $component_help=($component_help?$component_help:$help);
1933: # if ($faq ne '') {
1934: # $icons .= &Apache::loncommon::help_open_faq($faq);
1935: # }
1936: # if ($bug ne '') {
1937: # $icons .= &Apache::loncommon::help_open_bug($bug);
1938: # }
1939: if ($faq ne '' || $component_help ne '' || $bug ne '') {
1940: $icons .= &Apache::loncommon::help_open_menu($component,
1941: $component_help,
1942: $faq,$bug,'','','','',
1943: $links_target);
1944: }
1945: if ($topic_help && $topic_help_text) {
1946: $icons .= ' '.&Apache::loncommon::help_open_topic($topic_help,&mt($topic_help_text),'',
1947: undef,600,'',$links_target);
1948: }
1949: #
1950:
1951:
1952: if ($links ne '') {
1953: unless ($CourseBreadcrumbs) {
1954: $links = &htmltag('ol', $links, { id => "LC_MenuBreadcrumbs" });
1955: } else {
1956: $links = &htmltag('ul', $links, { class => "LC_CourseBreadcrumbs" });
1957: }
1958: }
1959:
1960:
1961: if (($component) || ($topic_help && $topic_help_text)) {
1962: $links = &htmltag('span',
1963: ( $no_mt ? $component : mt($component) ).
1964: ( $icons ? $icons : '' ),
1965: { class => 'LC_breadcrumbs_component' } )
1966: .$links
1967: ;
1968: }
1969: my $nav_and_tools = 0;
1970: foreach my $item ('navigation','tools') {
1971: if (ref($tools{$item}) eq 'ARRAY') {
1972: $nav_and_tools += scalar(@{$tools{$item}})
1973: }
1974: }
1975: if (($links ne '') || ($nav_and_tools)) {
1976: &render_tools(\$links);
1977: $links = &htmltag('div', $links,
1978: { id => "LC_breadcrumbs" }) unless ($CourseBreadcrumbs) ;
1979: }
1980: my $adv_tools = 0;
1981: if (ref($tools{'advtools'}) eq 'ARRAY') {
1982: $adv_tools = scalar(@{$tools{'advtools'}});
1983: }
1984: if (($links ne '') || ($adv_tools)) {
1985: &render_advtools(\$links);
1986: }
1987:
1988: # Return the @Crumbs stack to what we started with
1989: push(@Crumbs,$last);
1990: shift(@Crumbs);
1991:
1992:
1993: # Return the breadcrumb's line
1994:
1995:
1996:
1997: return "$links";
1998: }
1999:
2000: sub clear_breadcrumbs {
2001: undef(@Crumbs);
2002: undef(%tools);
2003: }
2004:
2005: sub add_breadcrumb {
2006: push(@Crumbs,@_);
2007: }
2008:
2009: =item &add_breadcrumb_tool($category, $html)
2010:
2011: Adds $html to $category of the breadcrumb toolbar container.
2012:
2013: $html is usually a link to a page that invokes a function on the currently
2014: displayed data (e.g. print when viewing a problem)
2015:
2016: Currently there are 3 possible values for $category:
2017:
2018: =over
2019:
2020: =item navigation
2021: left of breadcrumbs line
2022:
2023: =item tools
2024: remaining items in right of breadcrumbs line
2025:
2026: =item advtools
2027: advanced tools shown in a separate box below breadcrumbs line
2028:
2029: =back
2030:
2031: returns: nothing
2032:
2033: =cut
2034:
2035: sub add_breadcrumb_tool {
2036: my ($category, @html) = @_;
2037: return unless @html;
2038: if (!keys(%tools)) {
2039: %tools = ( navigation => [], tools => [], advtools => []);
2040: }
2041:
2042: #this cleans data received from lonmenu::innerregister
2043: @html = grep {defined $_ && $_ ne ''} @html;
2044: for (@html) {
2045: s/align="(right|left)"//;
2046: # s/<span.*?\/span>// if $category ne 'advtools';
2047: }
2048:
2049: push @{$tools{$category}}, @html;
2050: }
2051:
2052: =item &clear_breadcrumb_tools()
2053:
2054: Clears the breadcrumb toolbar container.
2055:
2056: returns: nothing
2057:
2058: =cut
2059:
2060: sub clear_breadcrumb_tools {
2061: undef(%tools);
2062: }
2063:
2064: =item ¤t_breadcrumb_tools()
2065:
2066: returns: a hash containing the current breadcrumb tools.
2067:
2068: =cut
2069:
2070: sub current_breadcrumb_tools {
2071: return %tools;
2072: }
2073:
2074: =item &render_tools(\$breadcrumbs)
2075:
2076: Creates html for breadcrumb tools (categories navigation and tools) and inserts
2077: \$breadcrumbs at the correct position.
2078:
2079: input: \$breadcrumbs - a reference to the string containing prepared
2080: breadcrumbs.
2081:
2082: returns: nothing
2083:
2084: =cut
2085:
2086: #TODO might split this in separate functions for each category
2087: sub render_tools {
2088: my ($breadcrumbs) = @_;
2089: return unless (keys(%tools));
2090:
2091: my $navigation = list_from_array($tools{navigation},
2092: { listattr => { class=>"LC_breadcrumb_tools_navigation" } });
2093: my $tools = list_from_array($tools{tools},
2094: { listattr => { class=>"LC_breadcrumb_tools_tools" } });
2095: $$breadcrumbs = list_from_array([$navigation, $tools, $$breadcrumbs],
2096: { listattr => { class=>'LC_breadcrumb_tools_outerlist' } });
2097: }
2098:
2099: =pod
2100:
2101: =item &render_advtools(\$breadcrumbs)
2102:
2103: Creates html for advanced tools (category advtools) and inserts \$breadcrumbs
2104: at the correct position.
2105:
2106: input: \$breadcrumbs - a reference to the string containing prepared
2107: breadcrumbs (after render_tools call).
2108:
2109: returns: nothing
2110:
2111: =cut
2112:
2113: sub render_advtools {
2114: my ($breadcrumbs) = @_;
2115: return unless (defined $tools{'advtools'})
2116: and (scalar(@{$tools{'advtools'}}) > 0);
2117:
2118: $$breadcrumbs .= Apache::loncommon::head_subbox(
2119: funclist_from_array($tools{'advtools'}) );
2120: }
2121:
2122: } # End of scope for @Crumbs
2123:
2124: sub docs_breadcrumbs {
2125: my ($allowed,$crstype,$contenteditor,$title,$precleared,$checklinkprot)=@_;
2126: my ($folderpath,@folders,$supplementalflag);
2127: @folders = split('&',$env{'form.folderpath'});
2128: if ($env{'form.folderpath'} =~ /^supplemental/) {
2129: $supplementalflag = 1;
2130: }
2131: my $plain='';
2132: my $container = 'sequence';
2133: my ($randompick,$isencrypted,$ishidden,$is_random_order) = (-1,0,0,0);
2134: my @docs_crumbs;
2135: while (@folders) {
2136: my $folder=shift(@folders);
2137: my $foldername=shift(@folders);
2138: if ($folderpath) {$folderpath.='&';}
2139: $folderpath.=$folder.'&'.$foldername;
2140: my $url = $env{'request.use_absolute'};
2141: if ($allowed) {
2142: $url .= '/adm/coursedocs?folderpath=';
2143: } else {
2144: $url .= '/adm/supplemental?folderpath=';
2145: }
2146: $url .= &escape($folderpath);
2147: my $name=&unescape($foldername);
2148: # each of randompick number, hidden, encrypted, random order, is_page
2149: # are appended with ":"s to the foldername
2150: $name=~s/\:(\d*)\:(\w*)\:(\w*):(\d*)\:?(\d*)$//;
2151: unless ($supplementalflag) {
2152: if ($contenteditor) {
2153: if ($1 ne '') {
2154: $randompick=$1;
2155: } else {
2156: $randompick=-1;
2157: }
2158: if ($2) { $ishidden=1; }
2159: if ($3) { $isencrypted=1; }
2160: if ($4 ne '') { $is_random_order = 1; }
2161: if ($5 == 1) {$container = 'page'; }
2162: }
2163: }
2164: if ($folder eq 'supplemental') {
2165: $name = &mt('Supplemental Content');
2166: }
2167: if ($contenteditor) {
2168: $plain.=$name.' > ';
2169: }
2170: push(@docs_crumbs,
2171: {'href' => $url,
2172: 'title' => $name,
2173: 'text' => $name,
2174: 'no_mt' => 1,
2175: });
2176: }
2177: if ($title) {
2178: push(@docs_crumbs,
2179: {'title' => $title,
2180: 'text' => $title,
2181: 'no_mt' => 1,}
2182: );
2183: }
2184: if (wantarray) {
2185: unless ($precleared) {
2186: &clear_breadcrumbs();
2187: }
2188: &add_breadcrumb(@docs_crumbs);
2189: if ($contenteditor) {
2190: $plain=~s/\>\;\s*$//;
2191: }
2192: my $menulink = 0;
2193: if (!$allowed && !$contenteditor) {
2194: $menulink = 1;
2195: }
2196: if ($checklinkprot) {
2197: if ($env{'request.deeplink.login'}) {
2198: my $linkprotout = &Apache::lonmenu::linkprot_exit();
2199: if ($linkprotout) {
2200: &Apache::lonhtmlcommon::add_breadcrumb_tool('tools',$linkprotout);
2201: }
2202: }
2203: }
2204: return (&breadcrumbs(undef,undef,$menulink,'nohelp',undef,undef,
2205: $contenteditor),
2206: $randompick,$ishidden,$isencrypted,$plain,
2207: $is_random_order,$container);
2208: } else {
2209: return \@docs_crumbs;
2210: }
2211: }
2212:
2213: ############################################################
2214: ############################################################
2215:
2216: # Nested table routines.
2217: #
2218: # Routines to display form items in a multi-row table with 2 columns.
2219: # Uses nested tables to divide form elements into segments.
2220: # For examples of use see loncom/interface/lonnotify.pm
2221: #
2222: # Can be used in following order: ...
2223: # &start_pick_box()
2224: # row1
2225: # row2
2226: # row3 ... etc.
2227: # &submit_row()
2228: # &end_pick_box()
2229: #
2230: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
2231: # &status_select_row and &email_default_row
2232: #
2233: # Can also be used in following order:
2234: #
2235: # &start_pick_box()
2236: # &row_title()
2237: # &row_closure()
2238: # &row_title()
2239: # &row_closure() ... etc.
2240: # &submit_row()
2241: # &end_pick_box()
2242: #
2243: # In general a &submit_row() call should proceed the call to &end_pick_box(),
2244: # as this routine adds a button for form submission.
2245: # &submit_row() does not require a &row_closure after it.
2246: #
2247: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
2248: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
2249: #
2250: # &row_title() adds a title in the left column for each segment.
2251: # &row_closure() closes a row with a 1-pixel wide black line.
2252: #
2253: # &role_select_row() provides a select box from which to choose 1 or more roles
2254: # &course_select_row provides ways of picking groups of courses
2255: # radio buttons: all, by category or by picking from a course picker pop-up
2256: # note: by category option is only displayed if a domain has implemented
2257: # selection by year, semester, department, number etc.
2258: #
2259: # &status_select_row() provides a select box from which to choose 1 or more
2260: # access types (current access, prior access, and future access)
2261: #
2262: # &email_default_row() provides text boxes for default e-mail suffixes for
2263: # different authentication types in a domain.
2264: #
2265: # &row_title() and &row_closure() are called internally by the &*_select_row
2266: # routines, but can also be called directly to start and end rows which have
2267: # needs that are not accommodated by the *_select_row() routines.
2268:
2269: { # Start: row_count block for pick_box
2270: my @row_count;
2271:
2272: sub start_pick_box {
2273: my ($css_class,$id) = @_;
2274: if (defined($css_class)) {
2275: $css_class = 'class="'.$css_class.'"';
2276: } else {
2277: $css_class= 'class="LC_pick_box"';
2278: }
2279: my $table_id;
2280: if (defined($id)) {
2281: $table_id = ' id="'.$id.'"';
2282: }
2283: unshift(@row_count,0);
2284: my $output = <<"END";
2285: <table $css_class $table_id>
2286: END
2287: return $output;
2288: }
2289:
2290: sub end_pick_box {
2291: shift(@row_count);
2292: my $output = <<"END";
2293: </table>
2294: END
2295: return $output;
2296: }
2297:
2298: sub row_headline {
2299: my $output = <<"END";
2300: <tr><td colspan="2">
2301: END
2302: return $output;
2303: }
2304:
2305: sub row_title {
2306: my ($title,$css_title_class,$css_value_class, $css_value_furtherAttributes) = @_;
2307: $row_count[0]++;
2308: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
2309: $css_title_class ||= 'LC_pick_box_title';
2310: $css_title_class = 'class="'.$css_title_class.'"';
2311:
2312: $css_value_class ||= 'LC_pick_box_value';
2313:
2314: if ($title ne '') {
2315: $title .= ':';
2316: }
2317: my $output = <<"ENDONE";
2318: <tr class="LC_pick_box_row" $css_value_furtherAttributes>
2319: <td $css_title_class>
2320: $title
2321: </td>
2322: <td class="$css_value_class $css_class">
2323: ENDONE
2324: return $output;
2325: }
2326:
2327: sub row_closure {
2328: my ($no_separator) =@_;
2329: my $output = <<"ENDTWO";
2330: </td>
2331: </tr>
2332: ENDTWO
2333: if (!$no_separator) {
2334: $output .= <<"ENDTWO";
2335: <tr>
2336: <td colspan="2" class="LC_pick_box_separator">
2337: </td>
2338: </tr>
2339: ENDTWO
2340: }
2341: return $output;
2342: }
2343:
2344: } # End: row_count block for pick_box
2345:
2346: sub role_select_row {
2347: my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
2348: my $crstype = 'Course';
2349: if ($cdom ne '' && $cnum ne '') {
2350: $crstype = &Apache::loncommon::course_type($cdom.'_'.$cnum);
2351: }
2352: my $output;
2353: if (defined($title)) {
2354: $output = &row_title($title,$css_class);
2355: }
2356: $output .= qq|
2357: <select name="roles" multiple="multiple">\n|;
2358: foreach my $role (@$roles) {
2359: my $plrole;
2360: if ($role eq 'ow') {
2361: $plrole = &mt('Course Owner');
2362: } elsif ($role eq 'cr') {
2363: if ($show_separate_custom) {
2364: if ($cdom ne '' && $cnum ne '') {
2365: my %course_customroles = &course_custom_roles($cdom,$cnum);
2366: foreach my $crrole (sort(keys(%course_customroles))) {
2367: my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
2368: $output .= ' <option value="'.$crrole.'">'.$plcrrole.
2369: '</option>';
2370: }
2371: }
2372: } else {
2373: $plrole = &mt('Custom Role');
2374: }
2375: } else {
2376: $plrole=&Apache::lonnet::plaintext($role,$crstype);
2377: }
2378: if (($role ne 'cr') || (!$show_separate_custom)) {
2379: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
2380: }
2381: }
2382: $output .= qq| </select>\n|;
2383: if (defined($title)) {
2384: $output .= &row_closure();
2385: }
2386: return $output;
2387: }
2388:
2389: sub course_select_row {
2390: my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
2391: $css_class,$crstype,$standardnames) = @_;
2392: my $output = &row_title($title,$css_class);
2393: $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames);
2394: $output .= &row_closure();
2395: return $output;
2396: }
2397:
2398: sub course_selection {
2399: my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames) = @_;
2400: my $output = qq|
2401: <script type="text/javascript">
2402: // <![CDATA[
2403: function coursePick (formname) {
2404: for (var i=0; i<formname.coursepick.length; i++) {
2405: if (formname.coursepick[i].value == 'category') {
2406: courseSet('');
2407: }
2408: if (!formname.coursepick[i].checked) {
2409: if (formname.coursepick[i].value == 'specific') {
2410: formname.coursetotal.value = 0;
2411: formname.courselist = '';
2412: }
2413: }
2414: }
2415: }
2416: function setPick (formname) {
2417: for (var i=0; i<formname.coursepick.length; i++) {
2418: if (formname.coursepick[i].value == 'category') {
2419: formname.coursepick[i].checked = true;
2420: }
2421: formname.coursetotal.value = 0;
2422: formname.courselist = '';
2423: }
2424: }
2425: // ]]>
2426: </script>
2427: |;
2428:
2429: my ($allcrs,$pickspec);
2430: if ($crstype eq 'Community') {
2431: $allcrs = &mt('All communities');
2432: $pickspec = &mt('Pick specific communities:');
2433: } else {
2434: $allcrs = &mt('All courses');
2435: $pickspec = &mt('Pick specific course(s):');
2436: }
2437:
2438: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
2439: ($formname,'pickcourse','pickdomain','coursedesc','',1,$crstype).'</b>';
2440: $output .= '<label><input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.$allcrs.'</label><br />';
2441: if ($totcodes > 0) {
2442: my $numtitles = @$codetitles;
2443: if ($numtitles > 0) {
2444: $output .= '<label><input type="radio" name="coursepick" value="category" onclick="coursePick(this.form);alert('."'".&html_escape(&mt('Choose categories, from left to right'))."'".')" />'.&mt('Pick courses by category:').'</label><br />';
2445: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
2446: '<select name="'.$standardnames->[0].
2447: '" onchange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
2448: ' <option value="-1" />Select'."\n";
2449: my @items = ();
2450: my @longitems = ();
2451: if ($$idlist{$$codetitles[0]} =~ /","/) {
2452: @items = split(/","/,$$idlist{$$codetitles[0]});
2453: } else {
2454: $items[0] = $$idlist{$$codetitles[0]};
2455: }
2456: if (defined($$idlist_titles{$$codetitles[0]})) {
2457: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
2458: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
2459: } else {
2460: $longitems[0] = $$idlist_titles{$$codetitles[0]};
2461: }
2462: for (my $i=0; $i<@longitems; $i++) {
2463: if ($longitems[$i] eq '') {
2464: $longitems[$i] = $items[$i];
2465: }
2466: }
2467: } else {
2468: @longitems = @items;
2469: }
2470: for (my $i=0; $i<@items; $i++) {
2471: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
2472: }
2473: $output .= '</select></td>';
2474: for (my $i=1; $i<$numtitles; $i++) {
2475: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
2476: '<select name="'.$standardnames->[$i].
2477: '" onchange="courseSet('."'$$codetitles[$i]'".')">'."\n".
2478: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
2479: '</select>'."\n".
2480: '</td>';
2481: }
2482: $output .= '</tr></table><br />';
2483: }
2484: }
2485: $output .=
2486: '<label><input type="radio" name="coursepick" value="specific"'
2487: .' onclick="coursePick(this.form);opencrsbrowser('."'".$formname."','dccourse','dcdomain','coursedesc','','1','$crstype'".')" />'
2488: .$pickspec.'</label>'
2489: .' '.$courseform.' '
2490: .&mt('[_1] selected.',
2491: '<input type="text" value="0" size="4" name="coursetotal" readonly="readonly" />'
2492: .'<input type="hidden" name="courselist" value="" />')
2493: .'<br />'."\n";
2494: return $output;
2495: }
2496:
2497: sub status_select_row {
2498: my ($types,$title,$css_class) = @_;
2499: my $output;
2500: if (defined($title)) {
2501: $output = &row_title($title,$css_class,'LC_pick_box_select');
2502: }
2503: $output .= qq|
2504: <select name="types" multiple="multiple">\n|;
2505: foreach my $status_type (sort(keys(%{$types}))) {
2506: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
2507: }
2508: $output .= qq| </select>\n|;
2509: if (defined($title)) {
2510: $output .= &row_closure();
2511: }
2512: return $output;
2513: }
2514:
2515: sub email_default_row {
2516: my ($authtypes,$title,$descrip,$css_class) = @_;
2517: my $output = &row_title($title,$css_class);
2518: $output .= $descrip.
2519: &Apache::loncommon::start_data_table().
2520: &Apache::loncommon::start_data_table_header_row().
2521: '<th>'.&mt('Authentication Method').'</th>'.
2522: '<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
2523: &Apache::loncommon::end_data_table_header_row();
2524: my $rownum = 0;
2525: foreach my $auth (sort(keys(%{$authtypes}))) {
2526: my ($userentry,$size);
2527: if ($auth =~ /^krb/) {
2528: $userentry = '';
2529: $size = 25;
2530: } else {
2531: $userentry = 'username@';
2532: $size = 15;
2533: }
2534: $output .= &Apache::loncommon::start_data_table_row().
2535: '<td> '.$$authtypes{$auth}.'</td>'.
2536: '<td align="right">'.$userentry.
2537: '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
2538: &Apache::loncommon::end_data_table_row();
2539: }
2540: $output .= &Apache::loncommon::end_data_table();
2541: $output .= &row_closure();
2542: return $output;
2543: }
2544:
2545:
2546: sub submit_row {
2547: my ($title,$cmd,$submit_text,$css_class) = @_;
2548: my $output = &row_title($title,$css_class,'LC_pick_box_submit');
2549: $output .= qq|
2550: <br />
2551: <input type="hidden" name="command" value="$cmd" />
2552: <input type="submit" value="$submit_text"/>
2553: <br /><br />
2554: \n|;
2555: return $output;
2556: }
2557:
2558: sub course_custom_roles {
2559: my ($cdom,$cnum) = @_;
2560: my %returnhash=();
2561: my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
2562: foreach my $person (sort(keys(%coursepersonnel))) {
2563: my ($role) = ($person =~ /^([^:]+):/);
2564: my ($end,$start) = split(/:/,$coursepersonnel{$person});
2565: if ($end == -1 && $start == -1) {
2566: next;
2567: }
2568: if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
2569: $returnhash{$role} ++;
2570: }
2571: }
2572: return %returnhash;
2573: }
2574:
2575:
2576: sub resource_info_box {
2577: my ($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp,$divforres)=@_;
2578: my $return='';
2579: if (($stuvcurrent ne '') || ($divforres)) {
2580: $return = '<div class="LC_left_float">';
2581: }
2582: if ($symb) {
2583: $return.=&Apache::loncommon::start_data_table();
2584: my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symb);
2585: my $folder=&Apache::lonnet::gettitle($map);
2586: $return.=&Apache::loncommon::start_data_table_row().
2587: '<th align="left">'.&mt('Folder:').'</th><td>'.$folder.'</td>'.
2588: &Apache::loncommon::end_data_table_row();
2589: unless ($onlyfolderflag) {
2590: $return.=&Apache::loncommon::start_data_table_row().
2591: '<th align="left">'.&mt('Resource:').'</th><td>'.&Apache::lonnet::gettitle($symb).'</td>'.
2592: &Apache::loncommon::end_data_table_row();
2593: }
2594: if ($stuvcurrent ne '') {
2595: $return .= &Apache::loncommon::start_data_table_row().
2596: '<th align="left">'.&mt("Student's current version:").'</th><td>'.$stuvcurrent.'</td>'.
2597: &Apache::loncommon::end_data_table_row();
2598: }
2599: if ($stuvdisp ne '') {
2600: $return .= &Apache::loncommon::start_data_table_row().
2601: '<th align="left">'.&mt("Student's version displayed:").'</th><td>'.$stuvdisp.'</td>'.
2602: &Apache::loncommon::end_data_table_row();
2603: }
2604: $return.=&Apache::loncommon::end_data_table();
2605: } else {
2606: $return='<p><span class="LC_error">'.&mt('No context provided.').'</span></p>';
2607: }
2608: if (($stuvcurrent ne '') || ($divforres)) {
2609: $return .= '</div>';
2610: }
2611: return $return;
2612: }
2613:
2614: # display_usage
2615: #
2616: # Generates a div containing a block, filled to show percentage of current quota used
2617: #
2618: # Quotas available for user portfolios, group portfolios, authoring spaces, and course
2619: # content stored directly within a course (i.e., excluding published content).
2620: #
2621:
2622: sub display_usage {
2623: my ($current_disk_usage,$disk_quota,$context) = @_;
2624: my $usage = $current_disk_usage/1024;
2625: my $quota = $disk_quota/1024;
2626: my $percent;
2627: if ($disk_quota == 0) {
2628: $percent = 100.0;
2629: } else {
2630: $percent = 100*($current_disk_usage/$disk_quota);
2631: }
2632: $usage = sprintf("%.2f",$usage);
2633: $quota = sprintf("%.2f",$quota);
2634: $percent = sprintf("%.0f",$percent);
2635: my ($color,$cssclass);
2636: if ($percent <= 60) {
2637: $color = '#00A000';
2638: } elsif ($percent > 60 && $percent < 90) {
2639: $color = '#FFD300';
2640: $cssclass = 'class="LC_warning"';
2641: } elsif( $percent >= 90) {
2642: $color = '#FF0000';
2643: $cssclass = 'class="LC_error"';
2644: }
2645: my $prog_width = $percent;
2646: if ($prog_width > 100) {
2647: $prog_width = 100;
2648: }
2649: my $display = 'block';
2650: if ($context eq 'authoring') {
2651: $display = 'inline';
2652: }
2653: return '
2654: <div id="meter1" align="left" style="display:'.$display.'" '.$cssclass.'>'.&mt('Currently using [_1] of the [_2] available.',$usage.' MB <span style="font-weight:bold;">('.$percent.'%)</span>',$quota.' MB')."\n".
2655: ' <div id="meter2" style="display:block; margin-top:3px; margin-bottom:3px; margin-left:0px; margin-right:0px; width:400px; border:1px solid #000000; height:10px;">'."\n".
2656: ' <div id="meter3" style="display:block; background-color:'.$color.'; width:'.$prog_width.'%; height:10px; color:#000000; margin:0px;"></div>'."\n".
2657: ' </div>'."\n".
2658: ' </div>';
2659: }
2660:
2661: ##############################################
2662: ##############################################
2663:
2664: # topic_bar
2665: #
2666: # Generates a div containing an (optional) number with a white background followed by a
2667: # title with a background color defined in the corresponding CSS: LC_topic_bar
2668: # Inputs:
2669: # 1. number to display.
2670: # If input for number is empty only the title will be displayed.
2671: # 2. title text to display.
2672: # 3. optional id for the <div>
2673: # Outputs - a scalar containing html mark-up for the div.
2674:
2675: sub topic_bar {
2676: my ($num,$title,$id) = @_;
2677: my $number = '';
2678: if ($num ne '') {
2679: $number = '<span>'.$num.'</span>';
2680: }
2681: if ($id ne '') {
2682: $id = 'id="'.$id.'"';
2683: }
2684: return '<div class="LC_topic_bar" '.$id.'>'.$number.$title.'</div>';
2685: }
2686:
2687: ##############################################
2688: ##############################################
2689: # echo_form_input
2690: #
2691: # Generates html markup to add form elements from the referrer page
2692: # as hidden form elements (values encoded) in the new page.
2693: #
2694: # Intended to support two types of use
2695: # (a) to allow backing up to earlier pages in a multi-page
2696: # form submission process using a breadcrumb trail.
2697: #
2698: # (b) to allow the current page to be reloaded with form elements
2699: # set on previous page to remain unchanged. An example would
2700: # be where the a page containing a dynamically-built table of data is
2701: # is to be redisplayed, with only the sort order of the data changed.
2702: #
2703: # Inputs:
2704: # 1. Reference to array of form elements in the submitted form on
2705: # the referrer page which are to be excluded from the echoed elements.
2706: #
2707: # 2. Reference to array of regular expressions, which if matched in the
2708: # name of the form element n the referrer page will be omitted from echo.
2709: #
2710: # Outputs: A scalar containing the html markup for the echoed form
2711: # elements (all as hidden elements, with values encoded).
2712:
2713:
2714: sub echo_form_input {
2715: my ($excluded,$regexps) = @_;
2716: my $output = '';
2717: foreach my $key (keys(%env)) {
2718: if ($key =~ /^form\.(.+)$/) {
2719: my $name = $1;
2720: my $match = 0;
2721: if (ref($excluded) eq 'ARRAY') {
2722: next if (grep(/^\Q$name\E$/,@{$excluded}));
2723: }
2724: if (ref($regexps) eq 'ARRAY') {
2725: if (@{$regexps} > 0) {
2726: foreach my $regexp (@{$regexps}) {
2727: if ($name =~ /$regexp/) {
2728: $match = 1;
2729: last;
2730: }
2731: }
2732: }
2733: }
2734: next if ($match);
2735: if (ref($env{$key}) eq 'ARRAY') {
2736: foreach my $value (@{$env{$key}}) {
2737: $value = &HTML::Entities::encode($value,'<>&"');
2738: $output .= '<input type="hidden" name="'.$name.
2739: '" value="'.$value.'" />'."\n";
2740: }
2741: } else {
2742: my $value = &HTML::Entities::encode($env{$key},'<>&"');
2743: $output .= '<input type="hidden" name="'.$name.
2744: '" value="'.$value.'" />'."\n";
2745: }
2746: }
2747: }
2748: return $output;
2749: }
2750:
2751: ##############################################
2752: ##############################################
2753: # set_form_elements
2754: #
2755: # Generates javascript to set form elements to values based on
2756: # corresponding values for the same form elements when the page was
2757: # previously submitted.
2758: #
2759: # Last submission values are read from hidden form elements in referring
2760: # page which have the same name, i.e., generated by &echo_form_input().
2761: #
2762: # Intended to be called by onload event.
2763: #
2764: # Inputs:
2765: # (a) Reference to hash of echoed form elements to be set.
2766: #
2767: # In the hash, keys are the form element names, and the values are the
2768: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
2769: # hidden).
2770: #
2771: # (b) Optional reference to hash of stored elements to be set.
2772: #
2773: # If the page being displayed is a page which permits modification of
2774: # previously stored data, e.g., the first page in a multi-page submission,
2775: # then if stored is supplied, form elements will be set to the last stored
2776: # values. If user supplied values are also available for the same elements
2777: # these will replace the stored values.
2778: #
2779: # Output:
2780: #
2781: # javascript function - set_form_elements() which sets form elements,
2782: # expects an argument: formname - the name of the form according to
2783: # the DOM, e.g., document.compose
2784:
2785: sub set_form_elements {
2786: my ($elements,$stored) = @_;
2787: my %values;
2788: my $output .= 'function setFormElements(courseForm) {
2789: ';
2790: if (defined($stored)) {
2791: foreach my $name (keys(%{$stored})) {
2792: if (exists($$elements{$name})) {
2793: if (ref($$stored{$name}) eq 'ARRAY') {
2794: $values{$name} = $$stored{$name};
2795: } else {
2796: @{$values{$name}} = ($$stored{$name});
2797: }
2798: }
2799: }
2800: }
2801:
2802: foreach my $key (keys(%env)) {
2803: if ($key =~ /^form\.(.+)$/) {
2804: my $name = $1;
2805: if (exists($$elements{$name})) {
2806: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
2807: }
2808: }
2809: }
2810:
2811: foreach my $name (keys(%values)) {
2812: for (my $i=0; $i<@{$values{$name}}; $i++) {
2813: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
2814: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
2815: $values{$name}[$i] =~ s/"/\\"/g;
2816: }
2817: if (($$elements{$name} eq 'text') || ($$elements{$name} eq 'hidden')) {
2818: my $numvalues = @{$values{$name}};
2819: if ($numvalues > 1) {
2820: my $valuestring = join('","',@{$values{$name}});
2821: $output .= qq|
2822: var textvalues = new Array ("$valuestring");
2823: var total = courseForm.elements['$name'].length;
2824: if (total > $numvalues) {
2825: total = $numvalues;
2826: }
2827: for (var i=0; i<total; i++) {
2828: courseForm.elements['$name']\[i].value = textvalues[i];
2829: }
2830: |;
2831: } else {
2832: $output .= qq|
2833: courseForm.elements['$name'].value = "$values{$name}[0]";
2834: |;
2835: }
2836: } else {
2837: $output .= qq|
2838: var elementLength = courseForm.elements['$name'].length;
2839: if (elementLength==undefined) {
2840: |;
2841: foreach my $value (@{$values{$name}}) {
2842: if ($$elements{$name} eq 'selectbox') {
2843: $output .= qq|
2844: if (courseForm.elements['$name'].options[0].value == "$value") {
2845: courseForm.elements['$name'].options[0].selected = true;
2846: }|;
2847: } elsif (($$elements{$name} eq 'radio') ||
2848: ($$elements{$name} eq 'checkbox')) {
2849: $output .= qq|
2850: if (courseForm.elements['$name'].value == "$value") {
2851: courseForm.elements['$name'].checked = true;
2852: } else {
2853: courseForm.elements['$name'].checked = false;
2854: }|;
2855: }
2856: }
2857: $output .= qq|
2858: }
2859: else {
2860: for (var i=0; i<courseForm.elements['$name'].length; i++) {
2861: |;
2862: if ($$elements{$name} eq 'selectbox') {
2863: $output .= qq|
2864: courseForm.elements['$name'].options[i].selected = false;|;
2865: } elsif (($$elements{$name} eq 'radio') ||
2866: ($$elements{$name} eq 'checkbox')) {
2867: $output .= qq|
2868: courseForm.elements['$name']\[i].checked = false;|;
2869: }
2870: $output .= qq|
2871: }
2872: for (var j=0; j<courseForm.elements['$name'].length; j++) {
2873: |;
2874: foreach my $value (@{$values{$name}}) {
2875: if ($$elements{$name} eq 'selectbox') {
2876: $output .= qq|
2877: if (courseForm.elements['$name'].options[j].value == "$value") {
2878: courseForm.elements['$name'].options[j].selected = true;
2879: }|;
2880: } elsif (($$elements{$name} eq 'radio') ||
2881: ($$elements{$name} eq 'checkbox')) {
2882: $output .= qq|
2883: if (courseForm.elements['$name']\[j].value == "$value") {
2884: courseForm.elements['$name']\[j].checked = true;
2885: }|;
2886: }
2887: }
2888: $output .= qq|
2889: }
2890: }
2891: |;
2892: }
2893: }
2894: $output .= "
2895: return;
2896: }\n";
2897: return $output;
2898: }
2899:
2900: ##############################################
2901: ##############################################
2902:
2903: sub file_submissionchk_js {
2904: my ($turninpaths,$multiples) = @_;
2905: my $overwritewarn = &mt('File(s) you uploaded for your submission will overwrite existing file(s) submitted for this item')."\n".
2906: &mt('Continue submission and overwrite the file(s)?');
2907: &js_escape(\$overwritewarn);
2908: my $delfilewarn = &mt('You have indicated you wish to remove some files previously included in your submission.')."\n".
2909: &mt('Continue submission with these files removed?');
2910: &js_escape(\$delfilewarn);
2911: my ($turninpathtext,$multtext,$arrayindexofjs);
2912: if (ref($turninpaths) eq 'HASH') {
2913: foreach my $key (sort(keys(%{$turninpaths}))) {
2914: $turninpathtext .= " if (prefix == '$key') {\n".
2915: " return '$turninpaths->{$key}';\n".
2916: " }\n";
2917: }
2918: }
2919: $turninpathtext .= " return '';\n";
2920: if (ref($multiples) eq 'HASH') {
2921: foreach my $key (sort(keys(%{$multiples}))) {
2922: $multtext .= " if (prefix == '$key') {\n".
2923: " return '$multiples->{$key}';\n".
2924: " }\n";
2925: }
2926: }
2927: $multtext .= " return '';\n";
2928:
2929: $arrayindexofjs = &Apache::loncommon::javascript_array_indexof();
2930: return <<"ENDSCRIPT";
2931: <script type="text/javascript">
2932: // <![CDATA[
2933:
2934: function file_submission_check(formname,path,multiresp) {
2935: var elemnum = formname.elements.length;
2936: if (elemnum == 0) {
2937: return true;
2938: }
2939: var alloverwrites = [];
2940: var alldelconfirm = [];
2941: var result = [];
2942: var submitter;
2943: var subprefix;
2944: var allsub = getIndexByName(formname,'all_submit');
2945: if (allsub == -1) {
2946: var idx = getIndexByName(formname,'submitted');
2947: if (idx != -1) {
2948: var subval = String(formname.elements[idx].value);
2949: submitter = subval.replace(/^part_/,'');
2950: result = overwritten_check(formname,path,multiresp,submitter);
2951: alloverwrites.push.apply(alloverwrites,result['overwrite']);
2952: alldelconfirm.push.apply(alldelconfirm,result['delete']);
2953: }
2954: } else {
2955: if (formname.elements[allsub].type == 'submit') {
2956: var partsub = /^\\d+\\.\\d+_submit_.+\$/;
2957: var allprefixes = [];
2958: var allparts = [];
2959: for (var i=0; i<formname.elements.length; i++) {
2960: if (formname.elements[i].type == 'submit') {
2961: var elemname = formname.elements[i].name;
2962: var subname = String(elemname);
2963: var savesub = String(elemname);
2964: if (partsub.test(subname)) {
2965: var prefix = subname.replace(/_submit_.+\$/,'');
2966: if (allprefixes.indexOf(prefix) == -1) {
2967: allprefixes.push(prefix);
2968: allparts[prefix] = [];
2969: }
2970: var part = savesub.replace(/^\\d+\\.\\d+_submit_/,'');
2971: allparts[prefix].push(part);
2972: }
2973: }
2974: }
2975: for (var k=0; k<allprefixes.length; k++) {
2976: var idx = getIndexByName(formname,allprefixes[k]+'_submitted');
2977: if (idx > -1) {
2978: if (formname.elements[idx].value != 'yes') {
2979: submitterval = formname.elements[idx].value;
2980: submitter = submitterval.replace(/^part_/,'');
2981: subprefix = allprefixes[k];
2982: result = overwritten_check(formname,path,multiresp,submitter,subprefix);
2983: alloverwrites.push.apply(alloverwrites,result['overwrite']);
2984: alldelconfirm.push.apply(alldelconfirm,result['delete']);
2985: break;
2986: }
2987: }
2988: }
2989: if (submitter == '' || submitter == undefined) {
2990: for (var m=0; m<allprefixes.length; m++) {
2991: for (var n=0; n<allparts[allprefixes[m]].length; n++) {
2992: var result = overwritten_check(formname,path,multiresp,allparts[allprefixes[m]][n],allprefixes[m]);
2993: alloverwrites.push.apply(alloverwrites,result['overwrite']);
2994: alldelconfirm.push.apply(alldelconfirm,result['delete']);
2995: }
2996: }
2997: }
2998: }
2999: }
3000: if (alloverwrites.length > 0) {
3001: if (!confirm("$overwritewarn")) {
3002: for (var n=0; n<alloverwrites.length; n++) {
3003: formname.elements[alloverwrites[n]].value = "";
3004: }
3005: return false;
3006: }
3007: }
3008: if (alldelconfirm.length > 0) {
3009: if (!confirm("$delfilewarn")) {
3010: for (var p=0; p<alldelconfirm.length; p++) {
3011: formname.elements[alldelconfirm[p]].checked = false;
3012: }
3013: return false;
3014: }
3015: }
3016: return true;
3017: }
3018:
3019: function getIndexByName(formname,item) {
3020: for (var i=0;i<formname.elements.length;i++) {
3021: if (formname.elements[i].name == item) {
3022: return i;
3023: }
3024: }
3025: return -1;
3026: }
3027:
3028: function overwritten_check(formname,path,multiresp,part,prefix) {
3029: var result = [];
3030: result['overwrite'] = [];
3031: result['delete'] = [];
3032: var elemnum = formname.elements.length;
3033: if (elemnum == 0) {
3034: return result;
3035: }
3036: var uploadstr;
3037: var deletestr;
3038: if ((prefix != undefined) && (prefix != '')) {
3039: var prepend = prefix+'_';
3040: uploadstr = new RegExp("^"+prepend+"HWFILE"+part+".+\$");
3041: deletestr = new RegExp("^"+prepend+"HWFILE"+part+".+_\\\\d+_delete\$");
3042: multiresp = check_for_multiples(prepend);
3043: path = check_for_turninpath(prepend);
3044: } else {
3045: uploadstr = new RegExp("^HWFILE"+part+".+\$");
3046: deletestr = new RegExp("^HWFILE"+part+".+_\\\\d+_delete\$");
3047: }
3048: var alluploads = [];
3049: var allchecked = [];
3050: var allskipdel = [];
3051: var fnametrim = /[^\\/\\\\]+\$/;
3052: for (var i=0; i<formname.elements.length; i++) {
3053: var id = formname.elements[i].id;
3054: if (id != '') {
3055: if (uploadstr.test(id)) {
3056: if (formname.elements[i].type == 'file') {
3057: alluploads.push(id);
3058: } else {
3059: if (deletestr.test(id)) {
3060: if (formname.elements[i].type == 'checkbox') {
3061: if (formname.elements[i].checked) {
3062: allchecked.push(id);
3063: }
3064: }
3065: }
3066: }
3067: }
3068: }
3069: }
3070: for (var j=0; j<alluploads.length; j++) {
3071: var delstr = new RegExp("^"+alluploads[j]+"_\\\\d+_delete\$");
3072: var delboxes = [];
3073: for (var k=0; k<formname.elements.length; k++) {
3074: var id = formname.elements[k].id;
3075: if ((id != '') && (id != undefined)) {
3076: if (delstr.test(id)) {
3077: if (formname.elements[k].type == 'checkbox') {
3078: delboxes.push(id);
3079: }
3080: }
3081: }
3082: }
3083: if (delboxes.length > 0) {
3084: if ((formname.elements[alluploads[j]].value != undefined) &&
3085: (formname.elements[alluploads[j]].value != '')) {
3086: var filepath = formname.elements[alluploads[j]].value;
3087: var newfilename = fnametrim.exec(filepath);
3088: if (newfilename != null) {
3089: var filename = String(newfilename);
3090: var nospaces = filename.replace(/\\s+/g,'_');
3091: var nospecials = nospaces.replace(/[^\\/\\w\\.\\-]/g,'');
3092: var cleanfilename = nospecials.replace(/\\.(\\d+\\.)/g,"_\$1");
3093: if (cleanfilename != '') {
3094: var fullpath = path+"/"+cleanfilename;
3095: if (multiresp == 1) {
3096: var partid = String(alluploads[i]);
3097: var subdir = partid.replace(/^\\d*.?\\d*_?HWFILE/,'');
3098: if (subdir != "" && subdir != undefined) {
3099: fullpath = path+"/"+subdir+"/"+cleanfilename;
3100: }
3101: }
3102: for (var m=0; m<delboxes.length; m++) {
3103: if (fullpath == formname.elements[delboxes[m]].value) {
3104: if (formname.elements[delboxes[m]].checked) {
3105: allskipdel.push(delboxes[m]);
3106: } else {
3107: result['overwrite'].push(alluploads[j]);
3108: }
3109: break;
3110: }
3111: }
3112: }
3113: }
3114: }
3115: }
3116: }
3117: if (allchecked.length > 0) {
3118: if (allskipdel.length > 0) {
3119: for (var n=0; n<allchecked.length; n++) {
3120: if (allskipdel.indexOf(allchecked[n]) == -1) {
3121: result['delete'].push(allchecked[n]);
3122: }
3123: }
3124: } else {
3125: result['delete'].push.apply(result['delete'],allchecked);
3126: }
3127: }
3128: return result;
3129: }
3130:
3131: function check_for_multiples(prefix) {
3132: $multtext
3133: }
3134:
3135: function check_for_turninpath(prefix) {
3136: $turninpathtext
3137: }
3138:
3139: // ]]>
3140: </script>
3141:
3142: $arrayindexofjs
3143:
3144: ENDSCRIPT
3145: }
3146:
3147: ##############################################
3148: ##############################################
3149:
3150: sub resize_scrollbox_js {
3151: my ($context,$tabidstr,$tid) = @_;
3152: my (%names,$paddingwfrac,$offsetwfrac,$offsetv,$minw,$minv);
3153: if ($context eq 'docs') {
3154: %names = (
3155: boxw => 'contenteditor',
3156: item => 'contentlist',
3157: header => 'uploadfileresult',
3158: scroll => 'contentscroll',
3159: boxh => 'contenteditor',
3160: );
3161: $paddingwfrac = 0.09;
3162: $offsetwfrac = 0.015;
3163: $offsetv = 20;
3164: $minw = 250;
3165: $minv = 200;
3166: } elsif ($context eq 'params') {
3167: %names = (
3168: boxw => 'parameditor',
3169: item => 'mapmenuinner',
3170: header => 'parmstep1',
3171: scroll => 'mapmenuscroll',
3172: boxh => 'parmlevel',
3173: );
3174: $paddingwfrac = 0.2;
3175: $offsetwfrac = 0.015;
3176: $offsetv = 80;
3177: $minw = 100;
3178: $minv = 100;
3179: }
3180: my $viewport_js = &Apache::loncommon::viewport_geometry_js();
3181: my $output = '
3182:
3183: window.onresize=callResize;
3184:
3185: ';
3186: if ($context eq 'docs') {
3187: if ($env{'form.active'}) {
3188: $output .= "\nvar activeTab = '$env{'form.active'}$tid';\n";
3189: } else {
3190: $output .= "\nvar activeTab = '';\n";
3191: }
3192: }
3193: $output .= <<"FIRST";
3194:
3195: $viewport_js
3196:
3197: function resize_scrollbox(scrollboxname,chkw,chkh) {
3198: var scrollboxid = 'div_'+scrollboxname;
3199: var scrolltableid = 'table_'+scrollboxname;
3200: var scrollbox;
3201: var scrolltable;
3202: var ismobile = '$env{'browser.mobile'}';
3203:
3204: if (document.getElementById("$names{'boxw'}") == null) {
3205: return;
3206: }
3207:
3208: if (document.getElementById(scrollboxid) == null) {
3209: return;
3210: } else {
3211: scrollbox = document.getElementById(scrollboxid);
3212: }
3213:
3214:
3215: if (document.getElementById(scrolltableid) == null) {
3216: return;
3217: } else {
3218: scrolltable = document.getElementById(scrolltableid);
3219: }
3220:
3221: init_geometry();
3222: var vph = Geometry.getViewportHeight();
3223: var vpw = Geometry.getViewportWidth();
3224:
3225: FIRST
3226: if ($context eq 'docs') {
3227: $output .= "
3228: var alltabs = ['$tabidstr'];
3229: ";
3230: } elsif ($context eq 'params') {
3231: $output .= "
3232: if (document.getElementById('$names{'boxh'}') == null) {
3233: return;
3234: }
3235: ";
3236: }
3237: $output .= <<"SECOND";
3238: var listwchange;
3239: var scrollchange;
3240: if (chkw == 1) {
3241: var boxw = document.getElementById("$names{'boxw'}").offsetWidth;
3242: var itemw;
3243: var itemid = document.getElementById("$names{'item'}");
3244: if (itemid != null) {
3245: itemw = itemid.offsetWidth;
3246: }
3247: var itemwstart = itemw;
3248:
3249: var scrollboxw = scrollbox.offsetWidth;
3250: var scrollboxscrollw = scrollbox.scrollWidth;
3251: var scrollstart = scrollboxw;
3252:
3253: var offsetw = parseInt(vpw * $offsetwfrac);
3254: var paddingw = parseInt(vpw * $paddingwfrac);
3255:
3256: var minscrollboxw = $minw;
3257: var maxcolw = 0;
3258: SECOND
3259: if ($context eq 'docs') {
3260: $output .= <<"DOCSONE";
3261: var actabw = 0;
3262: for (var i=0; i<alltabs.length; i++) {
3263: if (activeTab == alltabs[i]) {
3264: actabw = document.getElementById(alltabs[i]).offsetWidth;
3265: if (actabw > maxcolw) {
3266: maxcolw = actabw;
3267: }
3268: } else {
3269: if (document.getElementById(alltabs[i]) != null) {
3270: var thistab = document.getElementById(alltabs[i]);
3271: thistab.style.visibility = 'hidden';
3272: thistab.style.display = 'block';
3273: var tabw = document.getElementById(alltabs[i]).offsetWidth;
3274: thistab.style.display = 'none';
3275: thistab.style.visibility = '';
3276: if (tabw > maxcolw) {
3277: maxcolw = tabw;
3278: }
3279: }
3280: }
3281: }
3282: DOCSONE
3283: } elsif ($context eq 'params') {
3284: $output .= <<"PARAMSONE";
3285: var parmlevelrows = new Array();
3286: var mapmenucells = new Array();
3287: parmlevelrows = document.getElementById("$names{'boxh'}").rows;
3288: var numrows = parmlevelrows.length;
3289: if (numrows > 1) {
3290: mapmenucells = parmlevelrows[2].getElementsByTagName('td');
3291: }
3292: maxcolw = mapmenucells[0].offsetWidth;
3293: PARAMSONE
3294: }
3295: $output .= <<"THIRD";
3296: if (maxcolw > 0) {
3297: var newscrollboxw;
3298: if (maxcolw+paddingw+scrollboxscrollw<boxw) {
3299: newscrollboxw = boxw-paddingw-maxcolw;
3300: if (newscrollboxw < minscrollboxw) {
3301: newscrollboxw = minscrollboxw;
3302: }
3303: scrollbox.style.width = newscrollboxw+"px";
3304: if (newscrollboxw != scrollboxw) {
3305: var newitemw = newscrollboxw-offsetw;
3306: itemid.style.width = newitemw+"px";
3307: }
3308: } else {
3309: newscrollboxw = boxw-paddingw-maxcolw;
3310: if (newscrollboxw < minscrollboxw) {
3311: newscrollboxw = minscrollboxw;
3312: }
3313: scrollbox.style.width = newscrollboxw+"px";
3314: if (newscrollboxw != scrollboxw) {
3315: var newitemw = newscrollboxw-offsetw;
3316: itemid.style.width = newitemw+"px";
3317: }
3318: }
3319:
3320: if (newscrollboxw != scrollboxw) {
3321: var newscrolltablew = newscrollboxw+offsetw;
3322: scrolltable.style.width = newscrolltablew+"px";
3323: }
3324: }
3325:
3326: if (newscrollboxw != scrollboxw) {
3327: scrollchange = 1;
3328: }
3329:
3330: if (itemid.offsetWidth != itemwstart) {
3331: listwchange = 1;
3332: }
3333: }
3334: if ((chkh == 1) || (listwchange)) {
3335: var itemid = document.getElementById("$names{'item'}");
3336: if (itemid != null) {
3337: itemh = itemid.offsetHeight;
3338: }
3339: var primaryheight = 0;
3340: if (document.getElementById('LC_nav_bar') != null) {
3341: primaryheight = document.getElementById('LC_nav_bar').offsetHeight;
3342: }
3343: var secondaryheight = 0;
3344: if (document.getElementById('LC_secondary_menu') != null) {
3345: secondaryheight = document.getElementById('LC_secondary_menu').offsetHeight;
3346: }
3347: var crumbsheight = 0;
3348: if (document.getElementById('LC_breadcrumbs') != null) {
3349: crumbsheight = document.getElementById('LC_breadcrumbs').offsetHeight;
3350: }
3351: var dccidheight = 0;
3352: if (document.getElementById('dccid') != null) {
3353: dccidheight = document.getElementById('dccid').offsetHeight;
3354: }
3355: var headerheight = 0;
3356: if (document.getElementById("$names{'header'}") != null) {
3357: headerheight = document.getElementById("$names{'header'}").offsetHeight;
3358: }
3359: var tabbedheight = document.getElementById("tabbededitor").offsetHeight;
3360: var boxheight = document.getElementById("$names{'boxh'}").offsetHeight;
3361: var freevspace = vph-(primaryheight+secondaryheight+crumbsheight+dccidheight+headerheight+tabbedheight+boxheight);
3362:
3363: var scrollboxheight = scrollbox.offsetHeight;
3364: var scrollboxscrollheight = scrollbox.scrollHeight;
3365: var scrollboxh = scrollboxheight;
3366:
3367: var minvscrollbox = $minv;
3368: var offsetv = $offsetv;
3369: var newscrollboxheight;
3370: if (freevspace < 0) {
3371: newscrollboxheight = scrollboxheight+freevspace-offsetv;
3372: if (newscrollboxheight < minvscrollbox) {
3373: newscrollboxheight = minvscrollbox;
3374: }
3375: scrollbox.style.height = newscrollboxheight + "px";
3376: } else {
3377: if (scrollboxscrollheight > scrollboxheight) {
3378: if (freevspace > offsetv) {
3379: newscrollboxheight = scrollboxheight+freevspace-offsetv;
3380: if (newscrollboxheight < minvscrollbox) {
3381: newscrollboxheight = minvscrollbox;
3382: }
3383: scrollbox.style.height = newscrollboxheight+"px";
3384: }
3385: }
3386: }
3387: scrollboxheight = scrollbox.offsetHeight;
3388: var itemh = document.getElementById("$names{'item'}").offsetHeight;
3389:
3390: if (scrollboxscrollheight <= scrollboxheight) {
3391: if ((itemh+offsetv)<scrollboxheight) {
3392: newscrollheight = itemh+offsetv;
3393: scrollbox.style.height = newscrollheight+"px";
3394: }
3395: }
3396: var newscrollboxh = scrollbox.offsetHeight;
3397: if (scrollboxh != newscrollboxh) {
3398: scrollchange = 1;
3399: }
3400: }
3401: if (ismobile && scrollchange) {
3402: \$("#div_$names{'scroll'}").getNiceScroll().onResize();
3403: }
3404: return;
3405: }
3406:
3407: function callResize() {
3408: var timer;
3409: clearTimeout(timer);
3410: timer=setTimeout('resize_scrollbox("$names{'scroll'}","1","1")',500);
3411: }
3412:
3413: THIRD
3414: return $output;
3415: }
3416:
3417: ##############################################
3418: ##############################################
3419:
3420: sub javascript_jumpto_resource {
3421: my $confirm_switch = &mt("Editing requires switching to the resource's home server.")."\n".
3422: &mt('Switch server?');
3423: &js_escape(\$confirm_switch);
3424: return (<<ENDUTILITY)
3425:
3426: function go(url) {
3427: if (url!='' && url!= null) {
3428: currentURL = null;
3429: currentSymb= null;
3430: var lcHostname = setLCHost();
3431: if (lcHostname!='' && lcHostname!= null) {
3432: var RegExp = /^https?\:/;
3433: if (RegExp.test(url)) {
3434: window.location.href=url;
3435: } else {
3436: window.location.href=lcHostname+url;
3437: }
3438: } else {
3439: window.location.href=url;
3440: }
3441: }
3442: }
3443:
3444: function need_switchserver(url) {
3445: if (url!='' && url!= null) {
3446: if (confirm("$confirm_switch")) {
3447: go(url);
3448: }
3449: }
3450: return;
3451: }
3452:
3453: ENDUTILITY
3454:
3455: }
3456:
3457: sub jump_to_editres {
3458: my ($cfile,$home,$switchserver,$forceedit,$forcereg,$symb,$folderpath,
3459: $title,$hostname,$idx,$suppurl,$todocs,$suppanchor) = @_;
3460: my ($jscall,$anchor,$usehttp,$usehttps,$is_ext);
3461: if ($switchserver) {
3462: if ($home) {
3463: $cfile = '/adm/switchserver?otherserver='.$home.'&role='.
3464: &HTML::Entities::encode($env{'request.role'},'"<>&');
3465: if ($symb) {
3466: $cfile .= '&symb='.&HTML::Entities::encode($symb,'"<>&');
3467: } elsif ($folderpath) {
3468: $cfile .= '&folderpath='.&HTML::Entities::encode($folderpath,'"<>&');
3469: }
3470: if ($forceedit) {
3471: $cfile .= '&forceedit=1';
3472: }
3473: if ($forcereg) {
3474: $cfile .= '&register=1';
3475: }
3476: $jscall = "need_switchserver('".&Apache::loncommon::escape_single($cfile)."');";
3477: }
3478: } else {
3479: unless ($cfile =~ m{^/priv/}) {
3480: if ($cfile =~ m{^(/adm/wrapper/ext/([^#]+))(?:|#([^#]+))$}) {
3481: $cfile = $1;
3482: my $extlink = $2;
3483: $anchor = $3;
3484: $is_ext = 1;
3485: if (($extlink !~ /^https:/) && ($ENV{'SERVER_PORT'} == 443)) {
3486: unless ((&Apache::lonnet::uses_sts()) || (&Apache::lonnet::waf_allssl($hostname))) {
3487: $usehttp = 1;
3488: }
3489: } elsif ($env{'request.use_absolute'}) {
3490: if ($env{'request.use_absolute'} =~ m{^https://}) {
3491: $usehttps = 1;
3492: }
3493: }
3494: } elsif ($cfile =~ m{^/?public/($match_domain)/($match_courseid)/syllabus}) {
3495: if ($ENV{'SERVER_PORT'} == 443) {
3496: my ($cdom,$cnum) = ($1,$2);
3497: if (($env{'request.course.id'}) &&
3498: ($env{'course.'.$env{'request.course.id'}.'.num'} eq $cnum) &&
3499: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $cdom)) {
3500: if ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://}) {
3501: unless ((&Apache::lonnet::uses_sts()) || (&Apache::lonnet::waf_allssl($hostname))) {
3502: $usehttp = 1;
3503: }
3504: }
3505: }
3506: } elsif ($env{'request.use_absolute'}) {
3507: if ($env{'request.use_absolute'} =~ m{^https://}) {
3508: $usehttps = 1;
3509: }
3510: }
3511: }
3512: if ($symb) {
3513: if ($anchor ne '') {
3514: if ($symb =~ m{^([^#]+)\Q#$anchor\E$}) {
3515: $symb = $1.&escape(&escape('#')).$anchor;
3516: }
3517: }
3518: $cfile .= (($cfile=~/\?/)?'&':'?')."symb=$symb";
3519: } elsif ($folderpath) {
3520: $cfile .= (($cfile=~/\?/)?'&':'?').
3521: 'folderpath='.&HTML::Entities::encode(&escape($folderpath),'"<>&');
3522: if ($title) {
3523: $cfile .= (($cfile=~/\?/)?'&':'?').
3524: 'title='.&HTML::Entities::encode(&escape($title),'"<>&');
3525: }
3526: if ($idx) {
3527: $cfile .= (($cfile=~/\?/)?'&':'?').'idx='.$idx;
3528: }
3529: if ($suppurl) {
3530: $cfile .= (($cfile=~/\?/)?'&':'?').
3531: 'suppurl='.&HTML::Entities::encode(&escape($suppurl));
3532: }
3533: }
3534: if ($forceedit) {
3535: $cfile .= (($cfile=~/\?/)?'&':'?').'forceedit=1';
3536: if ($usehttps) {
3537: $cfile = $env{'request.use_absolute'}.(($cfile =~ /^\//)? '':'/').$cfile;
3538: }
3539: } elsif ($usehttp) {
3540: if ($hostname ne '') {
3541: $cfile = 'http://'.$hostname.(($cfile =~ /^\//)? '':'/').$cfile;
3542: }
3543: $cfile .= (($cfile=~/\?/)?'&':'?').'usehttp=1';
3544: } elsif ($usehttps) {
3545: $cfile = $env{'request.use_absolute'}.(($cfile =~ /^\//)? '':'/').$cfile;
3546: }
3547: if ($forcereg) {
3548: $cfile .= (($cfile=~/\?/)?'&':'?').'register=1';
3549: }
3550: if ($todocs) {
3551: $cfile .= (($cfile=~/\?/)?'&':'?').'todocs=1';
3552: }
3553: if ($suppanchor ne '') {
3554: $cfile .= (($cfile=~/\?/)?'&':'?').'anchor='.
3555: &HTML::Entities::encode($suppanchor,'"<>&');
3556: }
3557: }
3558: if ($anchor ne '') {
3559: $cfile .= '#'.$anchor;
3560: }
3561: $jscall = "go('".&Apache::loncommon::escape_single($cfile)."')";
3562: }
3563: return $jscall;
3564: }
3565:
3566: ##############################################
3567: ##############################################
3568:
3569: # javascript_valid_email
3570: #
3571: # Generates javascript to validate an e-mail address.
3572: # Returns a javascript function which accepts a form field as argument, and
3573: # returns false if field.value does not satisfy two regular expression matches
3574: # for a valid e-mail address. Backwards compatible with old browsers without
3575: # support for javascript RegExp (just checks for @ in field.value in this case).
3576:
3577: sub javascript_valid_email {
3578: my $scripttag .= <<'END';
3579: function validmail(field,suffix) {
3580: var str = field.value;
3581: if (suffix != '' && suffix != undefined) {
3582: str += suffix;
3583: }
3584: if (window.RegExp) {
3585: var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
3586: var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
3587: var reg1 = new RegExp(reg1str);
3588: var reg2 = new RegExp(reg2str);
3589: if (!reg1.test(str) && reg2.test(str)) {
3590: return true;
3591: }
3592: return false;
3593: }
3594: else
3595: {
3596: if(str.indexOf("@") >= 0) {
3597: return true;
3598: }
3599: return false;
3600: }
3601: }
3602: END
3603: return $scripttag;
3604: }
3605:
3606:
3607: # USAGE: htmltag(element, content, {attribute => value,...});
3608: #
3609: # EXAMPLES:
3610: # - htmltag('a', 'this is an anchor', {href => 'www.example.com',
3611: # title => 'this is a title'})
3612: #
3613: # - You might want to set up needed tags like:
3614: #
3615: # my $h3 = sub { return htmltag( "h3", @_ ) };
3616: #
3617: # ... and use them: $h3->("This is a headline")
3618: #
3619: # - To set up a couple of tags, see sub inittags
3620: #
3621: # NOTES:
3622: # - Empty elements, such as <br/> are correctly terminated,
3623: # i.e. htmltag('br') returns <br/>
3624: # - Empty attributes (title="") are filtered out.
3625: # - The function will not check for deprecated attributes.
3626: #
3627: # OUTPUT: content enclosed in xhtml conform tags
3628: sub htmltag{
3629: return
3630: qq|<$_[0]|
3631: . join( '', map { qq| $_="${$_[2]}{$_}"| if ${$_[2]}{$_} } keys(%{ $_[2] }) )
3632: . ($_[1] ? qq|>$_[1]</$_[0]>| : qq|/>|). "\n";
3633: };
3634:
3635:
3636: # USAGE: inittags(@tags);
3637: #
3638: # EXAMPLES:
3639: # - my ($h1, $h2, $h3) = inittags( qw( h1 h2 h3 ) )
3640: # $h1->("This is a headline") #Returns: <h1>This is a headline</h1>
3641: #
3642: # NOTES: See sub htmltag for further information.
3643: #
3644: # OUTPUT: List of subroutines.
3645: sub inittags {
3646: my @tags = @_;
3647: return map { my $tag = $_;
3648: sub { return htmltag( $tag, @_ ) }
3649: } @tags;
3650: }
3651:
3652:
3653: # USAGE: scripttag(scriptcode, [start|end|both]);
3654: #
3655: # EXAMPLES:
3656: # - scripttag("alert('Hello World!')", 'both')
3657: # returns:
3658: # <script type="text/javascript">
3659: # // BEGIN LON-CAPA Internal
3660: # alert(Hello World!')
3661: # // END LON-CAPA Internal
3662: # </script>
3663: #
3664: # NOTES:
3665: # - works currently only for javascripts
3666: #
3667: # OUTPUT:
3668: # Scriptcode properly enclosed in <script> and CDATA tags (and LC
3669: # Internal markers if 2nd argument is given)
3670: sub scripttag {
3671: my ( $content, $marker ) = @_;
3672: return unless defined $content;
3673:
3674: my $begin = "\n// BEGIN LON-CAPA Internal\n";
3675: my $end = "\n// END LON-CAPA Internal\n";
3676:
3677: if ($marker) {
3678: $content = $begin . $content if $marker eq 'start' or $marker eq 'both';
3679: $content .= $end if $marker eq 'end' or $marker eq 'both';
3680: }
3681:
3682: $content = "\n// <![CDATA[\n$content\n// ]]>\n";
3683:
3684: return htmltag('script', $content, {type => 'text/javascript'});
3685: };
3686:
3687: =pod
3688:
3689: =item &list_from_array( \@array, { listattr =>{}, itemattr =>{} } )
3690:
3691: Constructs a XHTML list from \@array.
3692:
3693: input:
3694:
3695: =over
3696:
3697: =item \@array
3698:
3699: A reference to the array containing text that will be wrapped in <li></li> tags.
3700:
3701: =item { listattr => {}, itemattr =>{} }
3702:
3703: Attributes for <ul> and <li> passed in as hash references.
3704: See htmltag() for more details.
3705:
3706: =back
3707:
3708: returns: XHTML list as String.
3709:
3710: =cut
3711:
3712: # \@items, {listattr => { class => 'abc', id => 'xyx' }, itemattr => {class => 'abc', id => 'xyx'}}
3713: sub list_from_array {
3714: my ($items, $args) = @_;
3715: return unless (ref($items) eq 'ARRAY');
3716: return unless scalar @$items;
3717: my ($ul, $li) = inittags( qw(ul li) );
3718: my $listitems = join '', map { $li->($_, $args->{itemattr}) } @$items;
3719: return $ul->( $listitems, $args->{listattr} );
3720: }
3721:
3722:
3723: ##############################################
3724: ##############################################
3725:
3726: # generate_menu
3727: #
3728: # Generates html markup for a menu.
3729: #
3730: # Inputs:
3731: # An array of following structure:
3732: # ({ categorytitle => 'Categorytitle',
3733: # items => [
3734: # {
3735: # linktext => 'Text to be displayed',
3736: # url => 'URL the link is pointing to, i.e. /adm/site?action=dosomething',
3737: # permission => 'Contains permissions as returned from lonnet::allowed(),
3738: # must evaluate to true in order to activate the link',
3739: # icon => 'icon filename',
3740: # alttext => 'alt text for the icon',
3741: # help => 'Name of the corresponding helpfile',
3742: # linktitle => 'Description of the link (used for title tag)'
3743: # },
3744: # ...
3745: # ]
3746: # },
3747: # ...
3748: # )
3749: #
3750: # Outputs: A scalar containing the html markup for the menu.
3751:
3752: sub generate_menu {
3753: my @menu = @_;
3754: # subs for specific html elements
3755: my ($h3, $div, $ul, $li, $a, $img) = inittags( qw(h3 div ul li a img) );
3756:
3757: my @categories; # each element represents the entire markup for a category
3758:
3759: foreach my $category (@menu) {
3760: my @links; # contains the links for the current $category
3761: foreach my $link (@{$$category{items}}) {
3762: next unless $$link{permission};
3763:
3764: # create the markup for the current $link and push it into @links.
3765: # each entry consists of an image and a text optionally followed
3766: # by a help link.
3767: my $src;
3768: if ($$link{icon} ne '') {
3769: $src = '/res/adm/pages/'.$$link{icon};
3770: }
3771: push(@links,$li->(
3772: $a->(
3773: $img->("", {
3774: class => "LC_noBorder LC_middle",
3775: src => $src,
3776: alt => mt(defined($$link{alttext}) ?
3777: $$link{alttext} : $$link{linktext})
3778: }), {
3779: href => $$link{url},
3780: title => mt($$link{linktitle}),
3781: class => 'LC_menubuttons_link'
3782: }).
3783: $a->(mt($$link{linktext}), {
3784: href => $$link{url},
3785: title => mt($$link{linktitle}),
3786: class => "LC_menubuttons_link"
3787: }).
3788: (defined($$link{help}) ?
3789: Apache::loncommon::help_open_topic($$link{help}) : ''),
3790: {class => "LC_menubuttons_inline_text"}));
3791: }
3792:
3793: # wrap categorytitle in <h3>, concatenate with
3794: # joined and in <ul> tags wrapped @links
3795: # and wrap everything in an enclosing <div> and push it into
3796: # @categories
3797: # such that each element looks like:
3798: # <div><h3>title</h3><ul><li>...</li>...</ul></div>
3799: # the category won't be added if there aren't any links
3800: push(@categories,
3801: $div->($h3->(mt($$category{categorytitle}), {class=>"LC_hcell"}).
3802: $ul->(join('' ,@links), {class =>"LC_ListStyleNormal" }),
3803: {class=>"LC_Box LC_400Box"})) if scalar(@links);
3804: }
3805:
3806: # wrap the joined @categories in another <div> (column layout)
3807: return $div->(join('', @categories), {class => "LC_columnSection"});
3808: }
3809:
3810: ##############################################
3811: ##############################################
3812:
3813: =pod
3814:
3815: =item &start_funclist()
3816:
3817: Start list of available functions
3818:
3819: Typically used to offer a simple list of available functions
3820: at top or bottom of page.
3821: All available functions/actions for the current page
3822: should be included in this list.
3823:
3824: If the optional headline text is not provided, a default text will be used.
3825:
3826:
3827: Related routines:
3828: =over 4
3829: add_item_funclist
3830: end_funclist
3831: =back
3832:
3833:
3834: Inputs: (optional) headline text
3835:
3836: Returns: HTML code with function list start
3837:
3838: =cut
3839:
3840: ##############################################
3841: ##############################################
3842:
3843: sub start_funclist {
3844: my($legendtext)=@_;
3845: $legendtext=&mt('Functions') if !$legendtext;
3846: return '<ul class="LC_funclist"><li style="font-weight:bold; margin-left:0.8em;">'.$legendtext.'</li>'."\n";
3847: }
3848:
3849:
3850: ##############################################
3851: ##############################################
3852:
3853: =pod
3854:
3855: =item &add_item_funclist()
3856:
3857: Adds an item to the list of available functions
3858:
3859: Related routines:
3860: =over 4
3861: start_funclist
3862: end_funclist
3863: =back
3864:
3865: Inputs: content item with text and link to function
3866:
3867: Returns: HTML code with list item for funclist
3868:
3869: =cut
3870:
3871: ##############################################
3872: ##############################################
3873:
3874: sub add_item_funclist {
3875: my($content) = @_;
3876: return '<li>'.$content.'</li>'."\n";
3877: }
3878:
3879: =pod
3880:
3881: =item &end_funclist()
3882:
3883: End list of available functions
3884:
3885: Related routines:
3886: =over 4
3887: start_funclist
3888: add_item_funclist
3889: =back
3890:
3891: Inputs: ./.
3892:
3893: Returns: HTML code with function list end
3894:
3895: =cut
3896:
3897: sub end_funclist {
3898: return "</ul>\n";
3899: }
3900:
3901: =pod
3902:
3903: =item &funclist_from_array( \@array, {legend => 'text for legend'} )
3904:
3905: Constructs a XHTML list from \@array with the first item being visually
3906: highlighted and set to the value of legend or 'Functions' if legend is
3907: empty.
3908:
3909: =over
3910:
3911: =item \@array
3912:
3913: A reference to the array containing text that will be wrapped in <li></li> tags.
3914:
3915: =item { legend => 'text' }
3916:
3917: A string that's used as visually highlighted first item. 'Functions' is used if
3918: it's value evaluates to false.
3919:
3920: =back
3921:
3922: returns: XHTML list as string.
3923:
3924: =back
3925:
3926: =cut
3927:
3928: sub funclist_from_array {
3929: my ($items, $args) = @_;
3930: return unless(ref($items) eq 'ARRAY');
3931: $args->{legend} ||= mt('Functions');
3932: return list_from_array( [$args->{legend}, @$items],
3933: { listattr => {class => 'LC_funclist'} });
3934: }
3935:
3936: =pod
3937:
3938: =over
3939:
3940: =item &actionbox( \@array )
3941:
3942: Constructs a XHTML list from \@array with the first item being visually
3943: highlighted and set to the value 'Actions'. The list is wrapped in a division.
3944:
3945: The actionlist is used to offer contextual actions, mostly at the bottom
3946: of a page, on which the outcome of an processed action is shown,
3947: e.g. a file operation in Authoring Space.
3948:
3949: =over
3950:
3951: =item \@array
3952:
3953: A reference to the array containing text. Details: sub funclist_from_array
3954:
3955: =back
3956:
3957: Returns: XHTML div as string.
3958:
3959: =back
3960:
3961: =cut
3962:
3963: sub actionbox {
3964: my ($items) = @_;
3965: return unless(ref($items) eq 'ARRAY');
3966: return
3967: '<div class="LC_actionbox">'
3968: .&funclist_from_array($items, {legend => &mt('Actions')})
3969: .'</div>';
3970: }
3971:
3972: 1;
3973:
3974: __END__
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