File:
[LON-CAPA] /
loncom /
interface /
lonhtmlcommon.pm
Revision
1.395:
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Sat Dec 29 23:24:39 2018 UTC (5 years, 7 months ago) by
raeburn
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CVS tags:
HEAD
- Bug 6806 Use of an External Resource URL which includes an anchor will
cause page to be load in iframe at anchor position.
- For servers using Apache/SSL where External Resource points at http:// URL
query string for links contains usehttp=1, unless Strict-Transport-Security
set for Apache with max-age > 0.
1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.395 2018/12/29 23:24:39 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.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
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.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
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: =over 4
463:
464: =item Inputs
465:
466: =over
467:
468: =item $dname
469:
470: The name to prepend to the form elements.
471: The form elements defined will be dname_year, dname_month, dname_day,
472: dname_hour, dname_min, and dname_sec.
473:
474: =item $currentvalue
475:
476: The current setting for this time parameter. A unix format time
477: (time in seconds since the beginning of Jan 1st, 1970, GMT.
478: An undefined value is taken to indicate the value is the current time
479: unless it is requested to leave it empty. See $includeempty.
480: Also, to be explicit, a value of 'now' also indicates the current time.
481:
482: =item $special
483:
484: Additional html/javascript to be associated with each element in
485: the date_setter. See lonparmset for example usage.
486:
487: =item $includeempty
488:
489: If it is set (true) and no date/time value is provided,
490: the date/time fields are left empty.
491:
492: =item $state
493:
494: Specifies the initial state of the form elements. Either 'disabled' or empty.
495: Defaults to empty, which indicates the form elements are not disabled.
496:
497: =item $no_hh_mm_ss
498:
499: If true, text boxes for hours, minutes and seconds are omitted.
500:
501: =item $defhour
502:
503: Default value for hours (a default of 0 is used otherwise).
504:
505: =item $defmin
506:
507: Default value for minutes (a default of 0 is used otherwise).
508:
509: =item defsec
510:
511: Default value for seconds (a default of 0 is used otherwise).
512:
513: =item $nolink
514:
515: If true, a "Select calendar" link (to pop-up a calendar) is not displayed
516: to the right of the items.
517:
518: =item $no_mm_ss
519:
520: If true, text boxes for minutes and seconds are omitted.
521:
522: =item $no_ss
523:
524: If true, text boxes for seconds are omitted.
525:
526: =back
527:
528: =item Bugs
529:
530: The method used to restrict user input will fail in the year 2400.
531:
532: =back
533:
534: =cut
535:
536: ##############################################
537: ##############################################
538: sub date_setter {
539: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
540: $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink,$no_mm_ss,$no_ss) = @_;
541: my $now = time;
542:
543: my $tzname;
544: my ($sec,$min,$hour,$mday,$month,$year) = ('', '', undef,''.''.'');
545: #other potentially useful values: wkday,yrday,is_daylight_savings
546:
547: if (! defined($state) || $state ne 'disabled') {
548: $state = '';
549: } else {
550: $state = 'disabled="disabled"';
551: }
552: if (! defined($no_hh_mm_ss)) {
553: $no_hh_mm_ss = 0;
554: }
555: if ($currentvalue eq 'now') {
556: $currentvalue = $now;
557: }
558:
559: # Default value: Set empty date field to current time
560: # unless empty inclusion is requested
561: if ((!$includeempty) && (!$currentvalue)) {
562: $currentvalue = $now;
563: }
564: # Do we have a date? Split it!
565: if ($currentvalue) {
566: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue);
567:
568: #No values provided for hour, min, sec? Use default 0
569: if (($defhour) || ($defmin) || ($defsec)) {
570: $sec = ($defsec ? $defsec : 0);
571: $min = ($defmin ? $defmin : 0);
572: $hour = ($defhour ? $defhour : 0);
573: }
574: }
575: my $result = "\n<!-- $dname date setting form -->\n";
576: $result .= <<ENDJS;
577: <script type="text/javascript">
578: // <![CDATA[
579: function $dname\_checkday() {
580: var day = document.$formname.$dname\_day.value;
581: var month = document.$formname.$dname\_month.value;
582: var year = document.$formname.$dname\_year.value;
583: var valid = true;
584: if (day < 1) {
585: document.$formname.$dname\_day.value = 1;
586: }
587: if (day > 31) {
588: document.$formname.$dname\_day.value = 31;
589: }
590: if ((month == 1) || (month == 3) || (month == 5) ||
591: (month == 7) || (month == 8) || (month == 10) ||
592: (month == 12)) {
593: if (day > 31) {
594: document.$formname.$dname\_day.value = 31;
595: day = 31;
596: }
597: } else if (month == 2 ) {
598: if ((year % 4 == 0) && (year % 100 != 0)) {
599: if (day > 29) {
600: document.$formname.$dname\_day.value = 29;
601: }
602: } else if (day > 29) {
603: document.$formname.$dname\_day.value = 28;
604: }
605: } else if (day > 30) {
606: document.$formname.$dname\_day.value = 30;
607: }
608: }
609:
610: function $dname\_disable() {
611: document.$formname.$dname\_month.disabled=true;
612: document.$formname.$dname\_day.disabled=true;
613: document.$formname.$dname\_year.disabled=true;
614: document.$formname.$dname\_hour.disabled=true;
615: document.$formname.$dname\_minute.disabled=true;
616: document.$formname.$dname\_second.disabled=true;
617: }
618:
619: function $dname\_enable() {
620: document.$formname.$dname\_month.disabled=false;
621: document.$formname.$dname\_day.disabled=false;
622: document.$formname.$dname\_year.disabled=false;
623: document.$formname.$dname\_hour.disabled=false;
624: document.$formname.$dname\_minute.disabled=false;
625: document.$formname.$dname\_second.disabled=false;
626: }
627:
628: function $dname\_opencalendar() {
629: if (! document.$formname.$dname\_month.disabled) {
630: var calwin=window.open(
631: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
632: document.$formname.$dname\_month.value+"&year="+
633: document.$formname.$dname\_year.value,
634: "LONCAPAcal",
635: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
636: }
637:
638: }
639: // ]]>
640: </script>
641: ENDJS
642: $result .= ' <span class="LC_nobreak">';
643: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
644: # Month
645: my @Months = qw/January February March April May June
646: July August September October November December/;
647: # Pad @Months with a bogus value to make indexing easier
648: unshift(@Months,'If you can read this an error occurred');
649: if ($includeempty) { $monthselector.="<option value=''></option>"; }
650: for(my $m = 1;$m <=$#Months;$m++) {
651: $monthselector .= qq{ <option value="$m"};
652: $monthselector .= ' selected="selected"' if ($m-1 eq $month);
653: $monthselector .= '> '.&mt($Months[$m]).' </option>'."\n";
654: }
655: $monthselector.= ' </select>';
656: # Day
657: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
658: # Year
659: my $yearselector = qq{<input type="text" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
660: #
661: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
662: if ($includeempty) {
663: $hourselector.=qq{<option value=''></option>};
664: }
665: for (my $h = 0;$h<24;$h++) {
666: $hourselector .= qq{<option value="$h"};
667: $hourselector .= ' selected="selected"' if (defined($hour) && $hour == $h);
668: $hourselector .= ">";
669: my $timest='';
670: if ($h == 0) {
671: $timest .= "12 am";
672: } elsif($h == 12) {
673: $timest .= "12 noon";
674: } elsif($h < 12) {
675: $timest .= "$h am";
676: } else {
677: $timest .= $h-12 ." pm";
678: }
679: $timest=&mt($timest);
680: $hourselector .= $timest." </option>\n";
681: }
682: $hourselector .= " </select>\n";
683: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
684: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
685: my $cal_link;
686: unless (($nolink) || ($state eq 'disabled')) {
687: $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
688: }
689: #
690: my $tzone = ' '.$tzname.' ';
691: if ($no_hh_mm_ss) {
692: $result .= &mt('[_1] [_2] [_3] ',
693: $monthselector,$dayselector,$yearselector).
694: $tzone;
695: } elsif ($no_mm_ss) {
696: $result .= &mt('[_1] [_2] [_3] [_4]',
697: $monthselector,$dayselector,$yearselector,
698: $hourselector).
699: $tzone;
700:
701: } elsif ($no_ss) {
702: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m',
703: $monthselector,$dayselector,$yearselector,
704: $hourselector,$minuteselector).
705: $tzone;
706:
707: } else {
708: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
709: $monthselector,$dayselector,$yearselector,
710: $hourselector,$minuteselector,$secondselector).
711: $tzone;
712: }
713: unless (($nolink) || ($state eq 'disabled')) {
714: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
715: }
716: $result .= "</span>\n<!-- end $dname date setting form -->\n";
717: return $result;
718: }
719:
720: sub get_timedates {
721: my ($epoch) = @_;
722: my $dt = DateTime->from_epoch(epoch => $epoch)
723: ->set_time_zone(&Apache::lonlocal::gettimezone());
724: my $tzname = $dt->time_zone_short_name();
725: my $sec = $dt->second;
726: my $min = $dt->minute;
727: my $hour = $dt->hour;
728: my $mday = $dt->day;
729: my $month = $dt->month;
730: if ($month) {
731: $month --;
732: }
733: my $year = $dt->year;
734: return ($tzname,$sec,$min,$hour,$mday,$month,$year);
735: }
736:
737: sub build_url {
738: my ($base, $fields)=@_;
739: my $url;
740: $url = $base.'?';
741: foreach my $key (keys(%$fields)) {
742: $url.=&escape($key).'='.&escape($$fields{$key}).'&';
743: }
744: $url =~ s/&$//;
745: return $url;
746: }
747:
748:
749: ##############################################
750: ##############################################
751:
752: =pod
753:
754: =item &get_date_from_form()
755:
756: get_date_from_form retrieves the date specified in an &date_setter form.
757:
758: =over
759:
760: =item Inputs:
761:
762: =over 4
763:
764: =item $dname
765:
766: The name passed to &date_setter, which prefixes the form elements.
767:
768: =item $defaulttime
769:
770: The unix time to use as the default in case of poor inputs.
771:
772: =back
773:
774: =back
775:
776: Returns: Unix time represented in the form.
777:
778: =cut
779:
780: ##############################################
781: ##############################################
782: sub get_date_from_form {
783: my ($dname) = @_;
784: my ($sec,$min,$hour,$day,$month,$year);
785: #
786: if (defined($env{'form.'.$dname.'_second'})) {
787: my $tmpsec = $env{'form.'.$dname.'_second'};
788: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
789: $sec = $tmpsec;
790: }
791: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
792: } else {
793: $sec = 0;
794: }
795: if (defined($env{'form.'.$dname.'_minute'})) {
796: my $tmpmin = $env{'form.'.$dname.'_minute'};
797: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
798: $min = $tmpmin;
799: }
800: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
801: } else {
802: $min = 0;
803: }
804: if (defined($env{'form.'.$dname.'_hour'})) {
805: my $tmphour = $env{'form.'.$dname.'_hour'};
806: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
807: $hour = $tmphour;
808: }
809: } else {
810: $hour = 0;
811: }
812: if (defined($env{'form.'.$dname.'_day'})) {
813: my $tmpday = $env{'form.'.$dname.'_day'};
814: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
815: $day = $tmpday;
816: }
817: }
818: if (defined($env{'form.'.$dname.'_month'})) {
819: my $tmpmonth = $env{'form.'.$dname.'_month'};
820: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
821: $month = $tmpmonth;
822: }
823: }
824: if (defined($env{'form.'.$dname.'_year'})) {
825: my $tmpyear = $env{'form.'.$dname.'_year'};
826: if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
827: $year = $tmpyear;
828: }
829: }
830: if (($year<1970) || ($year>2037)) { return undef; }
831: if (defined($sec) && defined($min) && defined($hour) &&
832: defined($day) && defined($month) && defined($year)) {
833: my $timezone = &Apache::lonlocal::gettimezone();
834: my $dt = DateTime->new( year => $year,
835: month => $month,
836: day => $day,
837: hour => $hour,
838: minute => $min,
839: second => $sec,
840: time_zone => $timezone,
841: );
842: my $epoch_time = $dt->epoch;
843: if ($epoch_time ne '') {
844: return $epoch_time;
845: } else {
846: return undef;
847: }
848: } else {
849: return undef;
850: }
851: }
852:
853: ##############################################
854: ##############################################
855:
856: =pod
857:
858: =item &pjump_javascript_definition()
859:
860: Returns javascript defining the 'pjump' function, which opens up a
861: parameter setting wizard.
862:
863: =cut
864:
865: ##############################################
866: ##############################################
867: sub pjump_javascript_definition {
868: my $Str = <<END;
869: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
870: openMyModal("/adm/rat/parameter.html?type="+escape(type)
871: +"&value="+escape(value)+"&marker="+escape(marker)
872: +"&return="+escape(ret)
873: +"&call="+escape(call)+"&name="+escape(dis)
874: +"&defhour="+escape(hour)+"&defmin="+escape(min)
875: +"&defsec="+escape(sec)+"&modal=1",350,350,'no');
876: }
877: END
878: return $Str;
879: }
880:
881: ##############################################
882: ##############################################
883:
884: =pod
885:
886: =item &javascript_nothing()
887:
888: Return an appropriate null for the users browser. This is used
889: as the first arguement for window.open calls when you want a blank
890: window that you can then write to.
891:
892: =cut
893:
894: ##############################################
895: ##############################################
896: sub javascript_nothing {
897: # mozilla and other browsers work with "''", but IE on mac does not.
898: my $nothing = "''";
899: my $user_browser;
900: my $user_os;
901: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
902: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
903: if (! defined($user_browser) || ! defined($user_os)) {
904: (undef,$user_browser,undef,undef,undef,$user_os) =
905: &Apache::loncommon::decode_user_agent();
906: }
907: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
908: $nothing = "'javascript:void(0);'";
909: }
910: return $nothing;
911: }
912:
913: ##############################################
914: ##############################################
915: sub javascript_docopen {
916: my ($mimetype) = @_;
917: $mimetype ||= 'text/html';
918: # safari does not understand document.open() and loads "text/html"
919: my $nothing = "''";
920: my $user_browser;
921: my $user_os;
922: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
923: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
924: if (! defined($user_browser) || ! defined($user_os)) {
925: (undef,$user_browser,undef,undef,undef,$user_os) =
926: &Apache::loncommon::decode_user_agent();
927: }
928: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
929: $nothing = "document.clear()";
930: } else {
931: $nothing = "document.open('$mimetype','replace')";
932: }
933: return $nothing;
934: }
935:
936:
937: ##############################################
938: ##############################################
939:
940: =pod
941:
942: =item &StatusOptions()
943:
944: Returns html for a selection box which allows the user to choose the
945: enrollment status of students. The selection box name is 'Status'.
946:
947: =over
948:
949: =item Inputs:
950:
951: $status: the currently selected status. If undefined the value of
952: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
953: is used.
954:
955: $formname: The name of the form. If defined the onchange attribute of
956: the selection box is set to document.$formname.submit().
957:
958: $size: the size (number of lines) of the selection box.
959:
960: $onchange: javascript to use when the value is changed. Enclosed in
961: double quotes, ""s, not single quotes.
962:
963: =back
964:
965: Returns: a perl string as described.
966:
967: =cut
968:
969: ##############################################
970: ##############################################
971: sub StatusOptions {
972: my ($status, $formName,$size,$onchange,$mult)=@_;
973: $size = 1 if (!defined($size));
974: if (! defined($status)) {
975: $status = 'Active';
976: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
977: }
978:
979: my $Str = '';
980: $Str .= '<select name="Status"';
981: if (defined($mult)){
982: $Str .= ' multiple="multiple" ';
983: }
984: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
985: $Str .= ' onchange="document.'.$formName.'.submit()"';
986: }
987: if (defined($onchange)) {
988: $Str .= ' onchange="'.$onchange.'"';
989: }
990: $Str .= ' size="'.$size.'" ';
991: $Str .= '>'."\n";
992: foreach my $type (['Active', &mt('Currently Has Access')],
993: ['Future', &mt('Will Have Future Access')],
994: ['Expired', &mt('Previously Had Access')],
995: ['Any', &mt('Any Access Status')]) {
996: my ($name,$label) = @$type;
997: $Str .= '<option value="'.$name.'" ';
998: if ($status eq $name) {
999: $Str .= 'selected="selected" ';
1000: }
1001: $Str .= '>'.$label.'</option>'."\n";
1002: }
1003:
1004: $Str .= '</select>'."\n";
1005: }
1006:
1007: ########################################################
1008: ########################################################
1009:
1010: =pod
1011:
1012: =item Progress Window Handling Routines
1013:
1014: These routines handle the creation, update, increment, and closure of
1015: progress windows. The progress window reports to the user the number
1016: of items completed and an estimate of the time required to complete the rest.
1017:
1018: =over 4
1019:
1020:
1021: =item &Create_PrgWin()
1022:
1023: Writes javascript to the client to open a progress window and returns a
1024: data structure used for bookkeeping.
1025:
1026: =over
1027:
1028: =item Inputs
1029:
1030: =over
1031:
1032: =item $r Apache request
1033:
1034: =item $number_to_do The total number of items being processed.
1035:
1036: =item $preamble Optional HTML to display before the progress bar.
1037:
1038: =back
1039:
1040: =back
1041:
1042: Returns a hash containing the progress state data structure.
1043: If $number_to_do is zero or null, an indeterminate progress bar will
1044: be used.
1045:
1046: =item &Update_PrgWin()
1047:
1048: Updates the text in the progress indicator. Does not increment the count.
1049: See &Increment_PrgWin.
1050:
1051: =over
1052:
1053: =item 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 $displaystring The string to write to the status indicator
1062:
1063: =back
1064:
1065: =back
1066:
1067: Returns: none
1068:
1069:
1070: =item &Increment_PrgWin()
1071:
1072: Increment the count of items completed for the progress window by $step or 1 if no step is provided.
1073:
1074: =over
1075:
1076: =item Inputs:
1077:
1078: =over 4
1079:
1080: =item $r
1081:
1082: Apache request
1083:
1084: =item $prog_state
1085:
1086: Pointer to the data structure returned by Create_PrgWin
1087:
1088: =item $extraInfo
1089:
1090: A description of the items being iterated over. Typically 'student'.
1091:
1092: =item $step
1093:
1094: (optional) counter step. Will be set to default 1 if ommited. step must be greater than 0 or empty.
1095:
1096: =back
1097:
1098: =back
1099:
1100: Returns: none
1101:
1102:
1103: =item &Close_PrgWin()
1104:
1105: Closes the progress window.
1106:
1107: =over
1108:
1109: =item Inputs:
1110:
1111: =over 4
1112:
1113: =item $r Apache request
1114:
1115: =item $prog_state Pointer to the data structure returned by Create_PrgWin
1116:
1117: =back
1118:
1119: =back
1120:
1121: Returns: none
1122:
1123: =back
1124:
1125: =cut
1126:
1127: ########################################################
1128: ########################################################
1129:
1130:
1131: # Create progress
1132: sub Create_PrgWin {
1133: my ($r,$number_to_do,$preamble)=@_;
1134: my %prog_state;
1135: $prog_state{'done'}=0;
1136: $prog_state{'firststart'}=&Time::HiRes::time();
1137: $prog_state{'laststart'}=&Time::HiRes::time();
1138: $prog_state{'max'}=$number_to_do;
1139: &Apache::loncommon::LCprogressbar($r,$prog_state{'max'},$preamble);
1140: return %prog_state;
1141: }
1142:
1143: # update progress
1144: sub Update_PrgWin {
1145: my ($r,$prog_state,$displayString)=@_;
1146: &Apache::loncommon::LCprogressbarUpdate($r,undef,$displayString,$$prog_state{'max'});
1147: $$prog_state{'laststart'}=&Time::HiRes::time();
1148: }
1149:
1150: # increment progress state
1151: sub Increment_PrgWin {
1152: my ($r,$prog_state,$extraInfo,$step)=@_;
1153: $step = $step > 0 ? $step : 1;
1154: $$prog_state{'done'} += $step;
1155:
1156: # Catch (max modulo step) <> 0
1157: my $current = $$prog_state{'done'};
1158: my $last = ($$prog_state{'max'} - $current);
1159: if ($last <= 0) {
1160: $last = 1;
1161: $current = $$prog_state{'max'};
1162: }
1163:
1164: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
1165: $current * $last;
1166: $time_est = int($time_est);
1167: #
1168: my $min = int($time_est/60);
1169: my $sec = $time_est % 60;
1170:
1171: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
1172: if ($lasttime > 9) {
1173: $lasttime = int($lasttime);
1174: } elsif ($lasttime < 0.01) {
1175: $lasttime = 0;
1176: } else {
1177: $lasttime = sprintf("%3.2f",$lasttime);
1178: }
1179:
1180: $sec = 0 if ($min >= 10); # Don't show seconds if remaining time >= 10 min.
1181: $sec = 1 if ( ($min == 0) && ($sec == 0) ); # Little cheating: pretend to have 1 second remaining instead of 0 to have something to display
1182:
1183: my $timeinfo =
1184: &mt('[_1]/[_2]:'
1185: .' [quant,_3,minute,minutes,] [quant,_4,second ,seconds ,]remaining'
1186: .' ([quant,_5,second] for '.$extraInfo.')',
1187: $current,
1188: $$prog_state{'max'},
1189: $min,
1190: $sec,
1191: $lasttime);
1192: my $percent=0;
1193: if ($$prog_state{'max'}) {
1194: $percent=int(100.*$current/$$prog_state{'max'});
1195: }
1196: &Apache::loncommon::LCprogressbarUpdate($r,$percent,$timeinfo,$$prog_state{'max'});
1197: $$prog_state{'laststart'}=&Time::HiRes::time();
1198: }
1199:
1200: # close Progress Line
1201: sub Close_PrgWin {
1202: my ($r,$prog_state)=@_;
1203: &Apache::loncommon::LCprogressbarClose($r);
1204: undef(%$prog_state);
1205: }
1206:
1207:
1208: # ------------------------------------------------------- Puts directory header
1209:
1210: sub crumbs {
1211: my ($uri,$target,$prefix,$form,$skiplast,$onclick)=@_;
1212: # You cannot crumbnify uploaded or adm resources
1213: if ($uri=~/^\/*(uploaded|adm)\//) { return &mt('(Internal Course/Community Content)'); }
1214: if ($target) {
1215: $target = ' target="'.
1216: &Apache::loncommon::escape_single($target).'"';
1217: }
1218: my $output='<span class="LC_filename">';
1219: $output.=$prefix.'/';
1220: if (($env{'user.adv'}) || ($env{'user.author'})) {
1221: my $path=$prefix.'/';
1222: foreach my $dir (split('/',$uri)) {
1223: if (! $dir) { next; }
1224: $path .= $dir;
1225: if ($path eq $uri) {
1226: if ($skiplast) {
1227: $output.=$dir;
1228: last;
1229: }
1230: } else {
1231: $path.='/';
1232: }
1233: if ($path eq '/res/') {
1234: unless (&Apache::lonnet::allowed('bre',$path)) {
1235: $output.="$dir/";
1236: next;
1237: }
1238: }
1239: my $href_path = &HTML::Entities::encode($path,'<>&"');
1240: &Apache::loncommon::inhibit_menu_check(\$href_path);
1241: if ($form) {
1242: my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
1243: $output.=qq{<a href="$href"$onclick$target>$dir</a>/};
1244: } else {
1245: $output.=qq{<a href="$href_path"$onclick$target>$dir</a>/};
1246: }
1247: }
1248: } else {
1249: foreach my $dir (split('/',$uri)) {
1250: if (! $dir) { next; }
1251: $output.=$dir.'/';
1252: }
1253: }
1254: if ($uri !~ m|/$|) { $output=~s|/$||; }
1255: $output.='</span>';
1256:
1257:
1258: return $output;
1259: }
1260:
1261: # --------------------- A function that generates a window for the spellchecker
1262:
1263: sub spellheader {
1264: my $start_page=
1265: &Apache::loncommon::start_page('Speller Suggestions',undef,
1266: {'only_body' => 1,
1267: 'js_ready' => 1,
1268: 'bgcolor' => '#DDDDDD',
1269: 'add_entries' => {
1270: 'onload' =>
1271: 'document.forms.spellcheckform.submit()',
1272: }
1273: });
1274: my $end_page=
1275: &Apache::loncommon::end_page({'js_ready' => 1});
1276:
1277: my $nothing=&javascript_nothing();
1278: return (<<ENDCHECK);
1279: <script type="text/javascript">
1280: // <![CDATA[
1281: //<!-- BEGIN LON-CAPA Internal
1282: var checkwin;
1283:
1284: function spellcheckerwindow(string) {
1285: var esc_string = string.replace(/\"/g,'"');
1286: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1287: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1288: checkwin.document.close();
1289: }
1290: // END LON-CAPA Internal -->
1291: // ]]>
1292: </script>
1293: ENDCHECK
1294: }
1295:
1296: # ---------------------------------- Generate link to spell checker for a field
1297:
1298: sub spelllink {
1299: my ($form,$field)=@_;
1300: my $linktext=&mt('Check Spelling');
1301: return (<<ENDLINK);
1302: <a href="javascript:if (typeof(document.$form.onsubmit)!='undefined') { if (document.$form.onsubmit!=null) { document.$form.onsubmit();}};spellcheckerwindow(this.document.forms.$form.$field.value);">$linktext</a>
1303: ENDLINK
1304: }
1305:
1306: # ------------------------------------------------- Output headers for CKEditor
1307:
1308: sub htmlareaheaders {
1309: my $s="";
1310: if (&htmlareabrowser()) {
1311: $s.=(<<ENDEDITOR);
1312: <script type="text/javascript" src="/ckeditor/ckeditor.js"></script>
1313: ENDEDITOR
1314: }
1315: $s.=(<<ENDJQUERY);
1316: <script type="text/javascript" src="/adm/jQuery/js/jquery-3.2.1.min.js"></script>
1317: <script type="text/javascript" src="/adm/jQuery/js/jquery-ui-1.12.1.custom.min.js"></script>
1318: <link rel="stylesheet" type="text/css" href="/adm/jQuery/css/smoothness/jquery-ui-1.12.1.custom.min.css" />
1319: <script type="text/javascript" src="/adm/jpicker/js/jpicker-1.1.6.min.js" >
1320: </script>
1321: <link rel="stylesheet" type="text/css" href="/adm/jpicker/css/jPicker-1.1.6.min.css" />
1322: <script type="text/javascript" src="/adm/countdown/js/jquery.countdown.min.js"></script>
1323: <link rel="stylesheet" type="text/css" href="/adm/countdown/css/jquery.countdown.css" />
1324:
1325: <script type="text/javascript" src="/adm/spellchecker/js/jquery.spellchecker.min.js"></script>
1326: <link rel="stylesheet" type="text/css" href="/adm/spellchecker/css/spellchecker.css" />
1327: <script type="text/javascript" src="/adm/nicescroll/jquery.nicescroll.min.js"></script>
1328:
1329: ENDJQUERY
1330: return $s;
1331: }
1332:
1333: # ----------------------------------------------------------------- Preferences
1334:
1335: # ------------------------------------------------- lang to use in html editor
1336: sub htmlarea_lang {
1337: my $lang='en';
1338: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1339: $lang=&mt('htmlarea_lang');
1340: }
1341: return $lang;
1342: }
1343:
1344: # return javacsript to activate elements of .colorchooser with jpicker:
1345: # Caller is responsible for enclosing this in <script> tags:
1346: #
1347: sub color_picker {
1348: return '
1349: $(document).ready(function(){
1350: $.fn.jPicker.defaults.images.clientPath="/adm/jpicker/images/";
1351: $(".colorchooser").jPicker({window: { position: {x: "screenCenter", y: "bottom"}}});
1352: });';
1353: }
1354:
1355: sub countdown {
1356:
1357: # Code to put a due date countdown in 'duedatecountdown' span.
1358: # This is currently located in the breadcrumb headers.
1359: # note that the dueDateLayout is internatinoalized below.
1360: # Here document is used to support the substitution into the javascript below.
1361: # ..which unforunately necessitates escaping the $'s in the javascript.
1362: # There are several times of importance
1363: #
1364: # serverDueDate - The absolute time at which the problem expires.
1365: # serverTime - The server's time when the problem finished computing.
1366: # clientTime - The client's time...as close to serverTime as possible.
1367: # The clientTime will be slightly later due to
1368: # 1. The latency between problem computation and
1369: # the first network action.
1370: # 2. The time required between the page load-start and the actual
1371: # initial javascript execution that got clientTime.
1372: # These are used as follows:
1373: # The difference between clientTime and serverTime are used to
1374: # correct for differences in clock settings between the browser's system and the
1375: # server's.
1376: #
1377: # The difference between clientTime and the time at which the ready() method
1378: # starts executing is used to estimate latencies for page load and submission.
1379: # Since this is an estimate, it is doubled. The latency estimate + one minute
1380: # is used to determine when the countdown timer turns red to warn the user
1381: # to think about submitting.
1382:
1383:
1384: my $dueDateLayout = &mt('Due in: {dn} {dl} {hnn}{sep}{mnn}{sep}{snn} [_1]',
1385: "<span id='submitearly'></span>");
1386: my $early = '- <b>'.&mt('Submit Early').'</b>';
1387: my $pastdue = '- <b>'.&mt('Past Due').'</b>';
1388: return <<"JAVASCRIPT";
1389:
1390: var documentReadyTime;
1391:
1392: \$(document).ready(function() {
1393: if (typeof(dueDate) != "undefined") {
1394: documentReadyTime = (new Date()).getTime();
1395: \$("#duedatecountdown").countdown({until: dueDate, compact: true,
1396: layout: "$dueDateLayout",
1397: onTick: function (periods) {
1398: var latencyEstimate = (documentReadyTime - clientTime) * 2;
1399: if(\$.countdown.periodsToSeconds(periods) < (300 + latencyEstimate)) {
1400: \$("#submitearly").html("$early");
1401: if (\$.countdown.periodsToSeconds(periods) < 1) {
1402: \$("#submitearly").html("$pastdue");
1403: }
1404: }
1405: if(\$.countdown.periodsToSeconds(periods) < (60 + latencyEstimate)) {
1406: \$(this).css("color", "red"); //Highlight last minute.
1407: }
1408: }
1409: });
1410: }
1411: });
1412:
1413: JAVASCRIPT
1414:
1415: }
1416:
1417: # ----------------------------------------- Script to activate only some fields
1418:
1419: sub htmlareaselectactive {
1420: my ($args) = @_;
1421: unless (&htmlareabrowser()) { return ''; }
1422: my $output='<script type="text/javascript" defer="defer">'."\n"
1423: .'// <![CDATA['."\n"
1424: .'//<!-- BEGIN LON-CAPA Internal'."\n";
1425: my $lang = &htmlarea_lang();
1426: my $fullpage = 'false';
1427: my ($dragmath_prefix,$dragmath_helpicon,$dragmath_whitespace);
1428: if (ref($args) eq 'HASH') {
1429: if (exists($args->{'lang'})) {
1430: if ($args->{'lang'} ne '') {
1431: $lang = $args->{'lang'};
1432: }
1433: }
1434: if (exists($args->{'fullpage'})) {
1435: if ($args->{'fullpage'} eq 'true') {
1436: $fullpage = $args->{'fullpage'};
1437: }
1438: }
1439: if (exists($args->{'dragmath'})) {
1440: if ($args->{'dragmath'} ne '') {
1441: $dragmath_prefix = $args->{'dragmath'};
1442: $dragmath_helpicon=&Apache::loncommon::lonhttpdurl("/adm/help/help.png");
1443: $dragmath_whitespace=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/transparent1x1.gif");
1444: }
1445: }
1446: }
1447:
1448: my %lt = &Apache::lonlocal::texthash(
1449: 'plain' => 'Plain text',
1450: 'rich' => 'Rich formatting',
1451: 'plain_title' => 'Disable rich text formatting and edit in plain text',
1452: 'rich_title' => 'Enable rich text formatting (bold, italic, etc.)',
1453: );
1454:
1455: $output.='
1456:
1457: function containsBlockHtml(id) {
1458: 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);
1459: return (re >= 0);
1460: }
1461:
1462: function startRichEditor(id) {
1463: // fix character entities inside <m>
1464: // NOTE: this is not fixing characters inside <parse>
1465: // NOTE: < and > inside <chem> should fix automatically because there should not be a letter after <.
1466: var ta = document.getElementById(id);
1467: var value = ta.value;
1468: var in_m = false; // in the m element
1469: var in_text = false; // in the text inside the m element
1470: var im = -1; // position of <m>
1471: var it = -1; // position of the text inside
1472: for (var i=0; i<value.length; i++) {
1473: if (value.substr(i, 2) == "<m") {
1474: // ignore previous <m> if found twice
1475: in_m = true;
1476: in_text = false;
1477: im = i;
1478: it = -1;
1479: } else if (in_m) {
1480: if (!in_text) {
1481: if (value.charAt(i) == ">") {
1482: in_text = true;
1483: it = i+1;
1484: }
1485: } else if (value.substr(i, 4) == "</m>") {
1486: in_m = false;
1487: var text = value.substr(it, i-it);
1488: var l1 = text.length;
1489: text = text.replace(/</g, "<");
1490: text = text.replace(/>/g, ">");
1491: var l2 = text.length;
1492: value = value.substr(0, it) + text + "</m>" + value.substr(i+4);
1493: i = i + (l2-l1);
1494: }
1495: }
1496: }
1497: ta.value = value;
1498: CKEDITOR.replace(id,
1499: {
1500: customConfig: "/ckeditor/loncapaconfig.js",
1501: language : "'.$lang.'",
1502: fullPage : '.$fullpage.',
1503: }
1504: );
1505: }
1506:
1507: function destroyRichEditor(id) {
1508: CKEDITOR.instances[id].destroy();
1509: // replace character entities < and > in <m> and <chem>
1510: // and "&fctname(" by "&fctname("
1511: // and the quotes inside functions: "&fct(1, "a")" -> "&fct(1, "a")"
1512: var ta = document.getElementById(id);
1513: var value = ta.value;
1514: var in_element = false; // in the m or chem element
1515: var tagname = ""; // m or chem
1516: var in_text = false; // in the text inside the element
1517: var im = -1; // position of start tag
1518: var it = -1; // position of the text inside
1519: for (var i=0; i<value.length; i++) {
1520: if (value.substr(i, 2) == "<m" || value.substr(i, 5) == "<chem") {
1521: // ignore previous tags if found twice
1522: in_element = true;
1523: if (value.substr(i, 2) == "<m")
1524: tagname = "m";
1525: else
1526: tagname = "chem";
1527: in_text = false;
1528: im = i;
1529: it = -1;
1530: } else if (in_element) {
1531: if (!in_text) {
1532: if (value.charAt(i) == ">") {
1533: in_text = true;
1534: it = i+1;
1535: }
1536: } else if (value.substr(i, 3+tagname.length) == "</"+tagname+">") {
1537: in_element = false;
1538: var text = value.substr(it, i-it);
1539: var l1 = text.length;
1540: text = text.replace(/</g, "<");
1541: text = text.replace(/>/g, ">");
1542: var l2 = text.length;
1543: value = value.substr(0, it) + text + value.substr(i);
1544: i = i + (l2-l1);
1545: }
1546: }
1547: }
1548: // fix function names
1549: value = value.replace(/&([a-zA-Z_]+)\(/g, "&$1(");
1550: // fix quotes in functions
1551: var pos_next_fct = value.search(/&[a-zA-Z_]+\(/);
1552: var depth = 0;
1553: for (var i=0; i<value.length; i++) {
1554: if (i == pos_next_fct) {
1555: depth++;
1556: var sub = value.substring(i+1);
1557: var pos2 = sub.search(/&[a-zA-Z_]+\(/);
1558: if (pos2 == -1)
1559: pos_next_fct = -1;
1560: else
1561: pos_next_fct = i + 1 + pos2;
1562: } else if (depth > 0) {
1563: if (value.charAt(i) == ")")
1564: depth--;
1565: else if (value.substr(i, 6) == """)
1566: value = value.substr(0, i) + "\"" + value.substr(i+6);
1567: }
1568: }
1569: // replace the text value
1570: ta.value = value;
1571: }
1572:
1573: function editorHandler(event) {
1574: var rawid = $(this).attr("id");
1575: var id = new RegExp("LC_rt_(.*)").exec(rawid)[1];
1576: event.preventDefault();
1577: var rt_enabled = $(this).hasClass("LC_enable_rt");
1578: if (rt_enabled) {
1579: startRichEditor(id);
1580: $("#LC_rt_"+id).html("<b>« '.$lt{'plain'}.'</b>");
1581: $("#LC_rt_"+id).attr("title", "'.$lt{'plain_title'}.'");
1582: $("#LC_rt_"+id).addClass("LC_disable_rt");
1583: $("#LC_rt_"+id).removeClass("LC_enable_rt");
1584: } else {
1585: destroyRichEditor(id);
1586: $("#LC_rt_"+id).html("<b>'.$lt{'rich'}.' »</b>");
1587: $("#LC_rt_"+id).attr("title", "'.$lt{'rich_title'}.'");
1588: $("#LC_rt_"+id).addClass("LC_enable_rt");
1589: $("#LC_rt_"+id).removeClass("LC_disable_rt");
1590: }';
1591: if ($dragmath_prefix ne '') {
1592: $output .= "\n var visible = '';
1593: if (rt_enabled) {
1594: visible = 'none';
1595: }
1596: editmath_visibility(id,visible);\n";
1597: }
1598: $output .= '
1599: }
1600: $(document).ready(function(){
1601: $(".LC_richAlwaysOn").each(function() {
1602: startRichEditor($(this).attr("id"));
1603: });
1604: $(".LC_richDetectHtml").each(function() {
1605: var id = $(this).attr("id");
1606: var rt_enabled = containsBlockHtml(id);
1607: if(rt_enabled) {
1608: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'plain_title'}.'\" class=\"LC_disable_rt\"><b>« '.$lt{'plain'}.'</b></a></div>");
1609: startRichEditor(id);
1610: $("#LC_rt_"+id).click(editorHandler);
1611: }
1612: else {
1613: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'rich_title'}.'\" class=\"LC_enable_rt\"><b>'.$lt{'rich'}.' »</b></a></div>");
1614: $("#LC_rt_"+id).click(editorHandler);
1615: }';
1616: if ($dragmath_prefix ne '') {
1617: $output .= "\n var visible = '';
1618: if (rt_enabled) {
1619: visible = 'none';
1620: }
1621: editmath_visibility(id,visible);\n";
1622: }
1623: $output .= '
1624: });
1625: $(".LC_richDefaultOn").each(function() {
1626: var id = $(this).attr("id");
1627: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'plain_title'}.'\" class=\"LC_disable_rt\"><b>« '.$lt{'plain'}.'</b></a></div>");
1628: startRichEditor(id);
1629: $("#LC_rt_"+id).click(editorHandler);
1630: });
1631: $(".LC_richDefaultOff").each(function() {
1632: var id = $(this).attr("id");
1633: $(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'rich_title'}.'\" class=\"LC_enable_rt\"><b>'.$lt{'rich'}.' »</b></a></div>");
1634: $("#LC_rt_"+id).click(editorHandler);
1635: });
1636:
1637:
1638: });
1639: ';
1640: $output .= &color_picker();
1641:
1642: $output .= &countdown();
1643:
1644: $output .= <<"JAVASCRIPT";
1645:
1646: /* This code describes the spellcheck options that will be used for
1647: items with class 'spellchecked'. It is necessary for those objects'
1648: to explicitly request checking (e.g. onblur is a nice event for that).
1649: */
1650: \$(document).ready(function() {
1651: \$(".spellchecked").spellchecker({
1652: url: "/ajax/spellcheck",
1653: lang: "en",
1654: engine: "pspell",
1655: suggestionBoxPosition: "below",
1656: innerDocument: true
1657: });
1658: \$("textarea.spellchecked").spellchecker({
1659: url: "/ajax/spellcheck",
1660: lang: "en",
1661: engine: "pspell",
1662: suggestionBoxPosition: "below",
1663: innerDocument: true
1664: });
1665:
1666: });
1667:
1668: /* the muli colored editor can generate spellcheck with language 'none'
1669: to disable spellcheck as well
1670: */
1671: function doSpellcheck(element, lang) {
1672: if (lang != 'none') {
1673: \$(element).spellchecker('option', {lang: lang});
1674: \$(element).spellchecker('check');
1675: }
1676: }
1677:
1678:
1679: JAVASCRIPT
1680: if ($dragmath_prefix ne '') {
1681: $output .= '
1682:
1683: function editmath_visibility(id,value) {
1684:
1685: if ((id == "") || (id == null)) {
1686: return;
1687: }
1688: var mathid = "'.$dragmath_prefix.'_"+id;
1689: mathele = document.getElementById(mathid);
1690: if (mathele == null) {
1691: return;
1692: }
1693: mathele.style.display = value;
1694: var mathhelpicon = "'.$dragmath_prefix.'helpicon'.'_"+id;
1695: mathhelpiconele = document.getElementById(mathhelpicon);
1696: if (mathhelpiconele == null) {
1697: return;
1698: }
1699: if (value == "none") {
1700: mathhelpiconele.src = "'.$dragmath_whitespace.'";
1701: } else {
1702: mathhelpiconele.src = "'.$dragmath_helpicon.'";
1703: }
1704: }
1705: ';
1706:
1707: }
1708: $output.="\nwindow.status='Activated Editfields';\n"
1709: .'// END LON-CAPA Internal -->'."\n"
1710: .'// ]]>'."\n"
1711: .'</script>';
1712: return $output;
1713: }
1714:
1715: # --------------------------------------------------------------------- Blocked
1716:
1717: sub htmlareablocked {
1718: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1719: return 0;
1720: }
1721:
1722: # ---------------------------------------- Browser capable of running HTMLArea?
1723:
1724: sub htmlareabrowser {
1725: return 1;
1726: }
1727:
1728: #
1729: # Should the "return to content" link be shown?
1730: #
1731:
1732: sub show_return_link {
1733:
1734: unless ($env{'request.course.id'}) { return 0; }
1735: if ($env{'request.noversionuri'}=~m{^/priv/} ||
1736: $env{'request.uri'}=~m{^/priv/}) { return 1; }
1737: return if ($env{'request.noversionuri'} eq '/adm/supplemental');
1738: return if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
1739: (!$env{'request.role.adv'}));
1740: if (($env{'request.noversionuri'} =~ m{^/adm/(viewclasslist|navmaps)($|\?)})
1741: || ($env{'request.noversionuri'} =~ m{^/adm/.*/aboutme($|\?)})) {
1742:
1743: return if ($env{'form.register'});
1744: }
1745: return (($env{'request.noversionuri'}=~m{^/(res|public)/} &&
1746: $env{'request.symb'} eq '')
1747: ||
1748: ($env{'request.noversionuri'}=~ m{^/cgi-bin/printout.pl})
1749: ||
1750: (($env{'request.noversionuri'}=~/^\/adm\//) &&
1751: ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
1752: ($env{'request.noversionuri'}!~
1753: m{^/adm/.*/(smppg|bulletinboard|ext\.tool)($|\?)})
1754: ));
1755: }
1756:
1757:
1758: ##
1759: # Set the dueDate variable...note this is done in the timezone
1760: # of the browser.
1761: #
1762: # @param epoch relative time at which the problem is due.
1763: #
1764: # @return the javascript fragment to set the date:
1765: #
1766: sub set_due_date {
1767: my $dueStamp = shift;
1768: my $duems = $dueStamp * 1000; # Javascript Date object needs ms not seconds.
1769:
1770: my $now = time()*1000;
1771:
1772: # This slightly obscure bit of javascript sets the dueDate variable
1773: # to the time in the browser at which the problem was due.
1774: # The code should correct for gross differences between the server
1775: # and client's time setting
1776:
1777: return <<"END";
1778:
1779: <script type="text/javascript">
1780: //<![CDATA[
1781: var serverDueDate = $duems;
1782: var serverTime = $now;
1783: var clientTime = (new Date()).getTime();
1784: var dueDate = new Date(serverDueDate + (clientTime - serverTime));
1785:
1786: //]]>
1787: </script>
1788:
1789: END
1790: }
1791: ##
1792: # Sets the time at which the problem finished computing.
1793: # This just updates the serverTime and clientTime variables above.
1794: # Calling this in e.g. end_problem provides a better estimate of the
1795: # difference beetween the server and client time setting as
1796: # the difference contains less of the latency/problem compute time.
1797: #
1798: sub set_compute_end_time {
1799:
1800: my $now = time()*1000; # Javascript times are in ms.
1801: return <<"END";
1802:
1803: <script type="text/javascript">
1804: //<![CDATA[
1805: serverTime = $now;
1806: clientTime = (new Date()).getTime();
1807: //]]>
1808: </script>
1809:
1810: END
1811: }
1812:
1813: ############################################################
1814: ############################################################
1815:
1816: =pod
1817:
1818: =item &breadcrumbs()
1819:
1820: Compiles the previously registered breadcrumbs into an series of links.
1821: Additionally supports a 'component', which will be displayed on the
1822: right side of the breadcrumbs enclosing div (without a link).
1823: A link to help for the component will be included if one is specified.
1824:
1825: All inputs can be undef without problems.
1826:
1827: =over
1828:
1829: =item Inputs:
1830:
1831: =over
1832:
1833: =item $component
1834:
1835: the text on the right side of the breadcrumbs trail
1836:
1837: =item $component_help
1838:
1839: the help item filename (without .tex extension).
1840:
1841: =item $menulink
1842:
1843: boolean, controls whether to include a link to /adm/menu
1844:
1845: =item $helplink
1846:
1847: if 'nohelp' don't include the orange help link
1848:
1849: =item $css_class
1850:
1851: optional name for the class to apply to the table for CSS
1852:
1853: =item $no_mt
1854:
1855: optional flag, 1 if &mt() is _not_ to be applied to $component when including the text on the right
1856:
1857: =item $CourseBreadcrumbs
1858:
1859: optional flag, 1 if &breadcrumbs called from &docs_breadcrumbs, because breadcrumbs are being
1860: used to display hierarchy for current folder shown in the Course Editor.
1861:
1862: =item $topic_help
1863:
1864: optional help item to be displayed on right side of the breadcrumbs row, using
1865: loncommon::help_open_topic() to generate the link.
1866:
1867: =item $topic_help_text
1868:
1869: text to include in the link in the optional help item ($topic_help) on the right
1870: side of the breadcrumbs row.
1871:
1872: =back
1873:
1874: =back
1875:
1876: Returns a string containing breadcrumbs for the current page.
1877:
1878: =item &clear_breadcrumbs()
1879:
1880: Clears the previously stored breadcrumbs.
1881:
1882: =item &add_breadcrumb()
1883:
1884: Pushes a breadcrumb on the stack of crumbs.
1885:
1886: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1887: are required. If present the keys 'faq' and 'bug' will be used to provide
1888: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title'
1889: and 'text' values won't be sent through &mt()
1890:
1891: returns: nothing
1892:
1893: =cut
1894:
1895: ############################################################
1896: ############################################################
1897: {
1898: my @Crumbs;
1899: my %tools = ();
1900:
1901: sub breadcrumbs {
1902: my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt,
1903: $CourseBreadcrumbs,$topic_help,$topic_help_text,$crstype) = @_;
1904: #
1905: $css_class ||= 'LC_breadcrumbs';
1906:
1907: # Make the faq and bug data cascade
1908: my $faq = '';
1909: my $bug = '';
1910: my $help = '';
1911: # Crumb Symbol
1912: my $crumbsymbol = '»';
1913: # The last breadcrumb does not have a link, so handle it separately.
1914: my $last = pop(@Crumbs);
1915: #
1916: # The first one should be the course or a menu link
1917: if (!defined($menulink)) { $menulink=1; }
1918: if ($menulink) {
1919: my $description = 'Menu';
1920: my $no_mt_descr = 0;
1921: if ((exists($env{'request.course.id'})) &&
1922: ($env{'request.course.id'} ne '') &&
1923: ($env{'course.'.$env{'request.course.id'}.'.description'} ne '')) {
1924: $description =
1925: $env{'course.'.$env{'request.course.id'}.'.description'};
1926: $no_mt_descr = 1;
1927: if ($env{'request.noversionuri'} =~
1928: m{^/?public/($match_domain)/($match_courseid)/syllabus$}) {
1929: unless (($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1) &&
1930: ($env{'course.'.$env{'request.course.id'}.'.num'} eq $2)) {
1931: $description = 'Menu';
1932: $no_mt_descr = 0;
1933: }
1934: }
1935: }
1936: my $target = '_top';
1937: if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
1938: $target='';
1939: }
1940: $menulink = { href =>'/adm/menu',
1941: title =>'Go to main menu',
1942: target =>$target,
1943: text =>$description,
1944: no_mt =>$no_mt_descr, };
1945: if($last) {
1946: #$last set, so we have some crumbs
1947: unshift(@Crumbs,$menulink);
1948: } else {
1949: #only menulink crumb present
1950: $last = $menulink;
1951: }
1952: }
1953: my $links;
1954: if ((&show_return_link) && (!$CourseBreadcrumbs) && (ref($last) eq 'HASH')) {
1955: my $alttext = &mt('Go Back');
1956: my $hashref = { href => '/adm/flip?postdata=return:',
1957: title => &mt('Back to most recent content resource'),
1958: class => 'LC_menubuttons_link',
1959: };
1960: if ($env{'request.noversionuri'} eq '/adm/searchcat') {
1961: $hashref->{'target'} = '_top';
1962: if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
1963: $hashref->{'target'} = '';
1964: }
1965: }
1966: $links=&htmltag( 'a','<img src="/res/adm/pages/tolastloc.png" alt="'.$alttext.'" class="LC_icon" />',
1967: $hashref);
1968: $links=&htmltag('li',$links);
1969: }
1970: $links.= join "",
1971: map {
1972: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1973: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1974: $help = $_->{'help'} if (exists($_->{'help'}));
1975:
1976: my $result = $_->{no_mt} ? $_->{text} : &mt($_->{text});
1977:
1978: if ($_->{href}){
1979: $result = &htmltag( 'a', $result,
1980: { href => $_->{href},
1981: title => $_->{no_mt} ? $_->{title} : &mt($_->{title}),
1982: target => $_->{target}, });
1983: }
1984:
1985: $result = &htmltag( 'li', "$result $crumbsymbol");
1986: } @Crumbs;
1987:
1988: #should the last Element be translated?
1989:
1990: my $lasttext = $last->{'no_mt'} ? $last->{'text'}
1991: : mt( $last->{'text'} );
1992:
1993: # last breadcrumb is the first order heading of a page
1994: # for course breadcrumbs it's just bold
1995:
1996: if ($lasttext ne '') {
1997: $links .= &htmltag( 'li', htmltag($CourseBreadcrumbs ? 'b' : 'h1',
1998: $lasttext), {title => $lasttext});
1999: }
2000:
2001: my $icons = '';
2002: $faq = $last->{'faq'} if (exists($last->{'faq'}));
2003: $bug = $last->{'bug'} if (exists($last->{'bug'}));
2004: $help = $last->{'help'} if (exists($last->{'help'}));
2005: $component_help=($component_help?$component_help:$help);
2006: # if ($faq ne '') {
2007: # $icons .= &Apache::loncommon::help_open_faq($faq);
2008: # }
2009: # if ($bug ne '') {
2010: # $icons .= &Apache::loncommon::help_open_bug($bug);
2011: # }
2012: if ($faq ne '' || $component_help ne '' || $bug ne '') {
2013: $icons .= &Apache::loncommon::help_open_menu($component,
2014: $component_help,
2015: $faq,$bug);
2016: }
2017: if ($topic_help && $topic_help_text) {
2018: $icons .= ' '.&Apache::loncommon::help_open_topic($topic_help,&mt($topic_help_text),'',
2019: undef,600);
2020: }
2021: #
2022:
2023:
2024: if ($links ne '') {
2025: unless ($CourseBreadcrumbs) {
2026: $links = &htmltag('ol', $links, { id => "LC_MenuBreadcrumbs" });
2027: } else {
2028: $links = &htmltag('ul', $links, { class => "LC_CourseBreadcrumbs" });
2029: }
2030: }
2031:
2032:
2033: if (($component) || ($topic_help && $topic_help_text)) {
2034: $links = &htmltag('span',
2035: ( $no_mt ? $component : mt($component) ).
2036: ( $icons ? $icons : '' ),
2037: { class => 'LC_breadcrumbs_component' } )
2038: .$links
2039: ;
2040: }
2041: my $nav_and_tools = 0;
2042: foreach my $item ('navigation','tools') {
2043: if (ref($tools{$item}) eq 'ARRAY') {
2044: $nav_and_tools += scalar(@{$tools{$item}})
2045: }
2046: }
2047: if (($links ne '') || ($nav_and_tools)) {
2048: &render_tools(\$links);
2049: $links = &htmltag('div', $links,
2050: { id => "LC_breadcrumbs" }) unless ($CourseBreadcrumbs) ;
2051: }
2052: my $adv_tools = 0;
2053: if (ref($tools{'advtools'}) eq 'ARRAY') {
2054: $adv_tools = scalar(@{$tools{'advtools'}});
2055: }
2056: if (($links ne '') || ($adv_tools)) {
2057: &render_advtools(\$links);
2058: }
2059:
2060: # Return the @Crumbs stack to what we started with
2061: push(@Crumbs,$last);
2062: shift(@Crumbs);
2063:
2064:
2065: # Return the breadcrumb's line
2066:
2067:
2068:
2069: return "$links";
2070: }
2071:
2072: sub clear_breadcrumbs {
2073: undef(@Crumbs);
2074: undef(%tools);
2075: }
2076:
2077: sub add_breadcrumb {
2078: push(@Crumbs,@_);
2079: }
2080:
2081: =item &add_breadcrumb_tool($category, $html)
2082:
2083: Adds $html to $category of the breadcrumb toolbar container.
2084:
2085: $html is usually a link to a page that invokes a function on the currently
2086: displayed data (e.g. print when viewing a problem)
2087:
2088: =over
2089:
2090: =item Currently there are 3 possible values for $category:
2091:
2092: =over
2093:
2094: =item navigation
2095: left of breadcrumbs line
2096:
2097: =item tools
2098: remaining items in right of breadcrumbs line
2099:
2100: =item advtools
2101: advanced tools shown in a separate box below breadcrumbs line
2102:
2103: =back
2104:
2105: =back
2106:
2107: returns: nothing
2108:
2109: =cut
2110:
2111: sub add_breadcrumb_tool {
2112: my ($category, @html) = @_;
2113: return unless @html;
2114: if (!keys(%tools)) {
2115: %tools = ( navigation => [], tools => [], advtools => []);
2116: }
2117:
2118: #this cleans data received from lonmenu::innerregister
2119: @html = grep {defined $_ && $_ ne ''} @html;
2120: for (@html) {
2121: s/align="(right|left)"//;
2122: # s/<span.*?\/span>// if $category ne 'advtools';
2123: }
2124:
2125: push @{$tools{$category}}, @html;
2126: }
2127:
2128: =item &clear_breadcrumb_tools()
2129:
2130: Clears the breadcrumb toolbar container.
2131:
2132: returns: nothing
2133:
2134: =cut
2135:
2136: sub clear_breadcrumb_tools {
2137: undef(%tools);
2138: }
2139:
2140: =item ¤t_breadcrumb_tools()
2141:
2142: returns: a hash containing the current breadcrumb tools.
2143:
2144: =cut
2145:
2146: sub current_breadcrumb_tools {
2147: return %tools;
2148: }
2149:
2150: =item &render_tools(\$breadcrumbs)
2151:
2152: Creates html for breadcrumb tools (categories navigation and tools) and inserts
2153: \$breadcrumbs at the correct position.
2154:
2155: =over
2156:
2157: =item input:
2158:
2159: =over
2160:
2161: =item \$breadcrumbs - a reference to the string containing prepared breadcrumbs.
2162:
2163: =back
2164:
2165: =back
2166:
2167: returns: nothing
2168:
2169: =cut
2170:
2171: #TODO might split this in separate functions for each category
2172: sub render_tools {
2173: my ($breadcrumbs) = @_;
2174: return unless (keys(%tools));
2175:
2176: my $navigation = list_from_array($tools{navigation},
2177: { listattr => { class=>"LC_breadcrumb_tools_navigation" } });
2178: my $tools = list_from_array($tools{tools},
2179: { listattr => { class=>"LC_breadcrumb_tools_tools" } });
2180: $$breadcrumbs = list_from_array([$navigation, $tools, $$breadcrumbs],
2181: { listattr => { class=>'LC_breadcrumb_tools_outerlist' } });
2182: }
2183:
2184: =pod
2185:
2186: =item &render_advtools(\$breadcrumbs)
2187:
2188: Creates html for advanced tools (category advtools) and inserts \$breadcrumbs
2189: at the correct position.
2190:
2191: =over
2192:
2193: =item input:
2194:
2195: =over
2196:
2197: =item \$breadcrumbs - a reference to the string containing prepared breadcrumbs (after render_tools call).
2198:
2199: =back
2200:
2201: =back
2202:
2203: returns: nothing
2204:
2205: =cut
2206:
2207: sub render_advtools {
2208: my ($breadcrumbs) = @_;
2209: return unless (defined $tools{'advtools'})
2210: and (scalar(@{$tools{'advtools'}}) > 0);
2211:
2212: $$breadcrumbs .= Apache::loncommon::head_subbox(
2213: funclist_from_array($tools{'advtools'}) );
2214: }
2215:
2216: } # End of scope for @Crumbs
2217:
2218: sub docs_breadcrumbs {
2219: my ($allowed,$crstype,$contenteditor,$title,$precleared)=@_;
2220: my ($folderpath,@folders,$supplementalflag);
2221: @folders = split('&',$env{'form.folderpath'});
2222: if ($env{'form.folderpath'} =~ /^supplemental/) {
2223: $supplementalflag = 1;
2224: }
2225: my $plain='';
2226: my $container = 'sequence';
2227: my ($randompick,$isencrypted,$ishidden,$is_random_order) = (-1,0,0,0);
2228: my @docs_crumbs;
2229: while (@folders) {
2230: my $folder=shift(@folders);
2231: my $foldername=shift(@folders);
2232: if ($folderpath) {$folderpath.='&';}
2233: $folderpath.=$folder.'&'.$foldername;
2234: my $url = $env{'request.use_absolute'};
2235: if ($allowed) {
2236: $url .= '/adm/coursedocs?folderpath=';
2237: } else {
2238: $url .= '/adm/supplemental?folderpath=';
2239: }
2240: $url .= &escape($folderpath);
2241: my $name=&unescape($foldername);
2242: # each of randompick number, hidden, encrypted, random order, is_page
2243: # are appended with ":"s to the foldername
2244: $name=~s/\:(\d*)\:(\w*)\:(\w*):(\d*)\:?(\d*)$//;
2245: unless ($supplementalflag) {
2246: if ($contenteditor) {
2247: if ($1 ne '') {
2248: $randompick=$1;
2249: } else {
2250: $randompick=-1;
2251: }
2252: if ($2) { $ishidden=1; }
2253: if ($3) { $isencrypted=1; }
2254: if ($4 ne '') { $is_random_order = 1; }
2255: if ($5 == 1) {$container = 'page'; }
2256: }
2257: }
2258: if ($folder eq 'supplemental') {
2259: $name = &mt('Supplemental Content');
2260: }
2261: if ($contenteditor) {
2262: $plain.=$name.' > ';
2263: }
2264: push(@docs_crumbs,
2265: {'href' => $url,
2266: 'title' => $name,
2267: 'text' => $name,
2268: 'no_mt' => 1,
2269: });
2270: }
2271: if ($title) {
2272: push(@docs_crumbs,
2273: {'title' => $title,
2274: 'text' => $title,
2275: 'no_mt' => 1,}
2276: );
2277: }
2278: if (wantarray) {
2279: unless ($precleared) {
2280: &clear_breadcrumbs();
2281: }
2282: &add_breadcrumb(@docs_crumbs);
2283: if ($contenteditor) {
2284: $plain=~s/\>\;\s*$//;
2285: }
2286: my $menulink = 0;
2287: if (!$allowed && !$contenteditor) {
2288: $menulink = 1;
2289: }
2290: return (&breadcrumbs(undef,undef,$menulink,'nohelp',undef,undef,
2291: $contenteditor),
2292: $randompick,$ishidden,$isencrypted,$plain,
2293: $is_random_order,$container);
2294: } else {
2295: return \@docs_crumbs;
2296: }
2297: }
2298:
2299: ############################################################
2300: ############################################################
2301:
2302: # Nested table routines.
2303: #
2304: # Routines to display form items in a multi-row table with 2 columns.
2305: # Uses nested tables to divide form elements into segments.
2306: # For examples of use see loncom/interface/lonnotify.pm
2307: #
2308: # Can be used in following order: ...
2309: # &start_pick_box()
2310: # row1
2311: # row2
2312: # row3 ... etc.
2313: # &submit_row()
2314: # &end_pick_box()
2315: #
2316: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
2317: # &status_select_row and &email_default_row
2318: #
2319: # Can also be used in following order:
2320: #
2321: # &start_pick_box()
2322: # &row_title()
2323: # &row_closure()
2324: # &row_title()
2325: # &row_closure() ... etc.
2326: # &submit_row()
2327: # &end_pick_box()
2328: #
2329: # In general a &submit_row() call should proceed the call to &end_pick_box(),
2330: # as this routine adds a button for form submission.
2331: # &submit_row() does not require a &row_closure after it.
2332: #
2333: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
2334: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
2335: #
2336: # &row_title() adds a title in the left column for each segment.
2337: # &row_closure() closes a row with a 1-pixel wide black line.
2338: #
2339: # &role_select_row() provides a select box from which to choose 1 or more roles
2340: # &course_select_row provides ways of picking groups of courses
2341: # radio buttons: all, by category or by picking from a course picker pop-up
2342: # note: by category option is only displayed if a domain has implemented
2343: # selection by year, semester, department, number etc.
2344: #
2345: # &status_select_row() provides a select box from which to choose 1 or more
2346: # access types (current access, prior access, and future access)
2347: #
2348: # &email_default_row() provides text boxes for default e-mail suffixes for
2349: # different authentication types in a domain.
2350: #
2351: # &row_title() and &row_closure() are called internally by the &*_select_row
2352: # routines, but can also be called directly to start and end rows which have
2353: # needs that are not accommodated by the *_select_row() routines.
2354:
2355: { # Start: row_count block for pick_box
2356: my @row_count;
2357:
2358: sub start_pick_box {
2359: my ($css_class,$id) = @_;
2360: if (defined($css_class)) {
2361: $css_class = 'class="'.$css_class.'"';
2362: } else {
2363: $css_class= 'class="LC_pick_box"';
2364: }
2365: my $table_id;
2366: if (defined($id)) {
2367: $table_id = ' id="'.$id.'"';
2368: }
2369: unshift(@row_count,0);
2370: my $output = <<"END";
2371: <table $css_class $table_id>
2372: END
2373: return $output;
2374: }
2375:
2376: sub end_pick_box {
2377: shift(@row_count);
2378: my $output = <<"END";
2379: </table>
2380: END
2381: return $output;
2382: }
2383:
2384: sub row_headline {
2385: my $output = <<"END";
2386: <tr><td colspan="2">
2387: END
2388: return $output;
2389: }
2390:
2391: sub row_title {
2392: my ($title,$css_title_class,$css_value_class, $css_value_furtherAttributes) = @_;
2393: $row_count[0]++;
2394: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
2395: $css_title_class ||= 'LC_pick_box_title';
2396: $css_title_class = 'class="'.$css_title_class.'"';
2397:
2398: $css_value_class ||= 'LC_pick_box_value';
2399:
2400: if ($title ne '') {
2401: $title .= ':';
2402: }
2403: my $output = <<"ENDONE";
2404: <tr class="LC_pick_box_row" $css_value_furtherAttributes>
2405: <td $css_title_class>
2406: $title
2407: </td>
2408: <td class="$css_value_class $css_class">
2409: ENDONE
2410: return $output;
2411: }
2412:
2413: sub row_closure {
2414: my ($no_separator) =@_;
2415: my $output = <<"ENDTWO";
2416: </td>
2417: </tr>
2418: ENDTWO
2419: if (!$no_separator) {
2420: $output .= <<"ENDTWO";
2421: <tr>
2422: <td colspan="2" class="LC_pick_box_separator">
2423: </td>
2424: </tr>
2425: ENDTWO
2426: }
2427: return $output;
2428: }
2429:
2430: } # End: row_count block for pick_box
2431:
2432: sub role_select_row {
2433: my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
2434: my $crstype = 'Course';
2435: if ($cdom ne '' && $cnum ne '') {
2436: $crstype = &Apache::loncommon::course_type($cdom.'_'.$cnum);
2437: }
2438: my $output;
2439: if (defined($title)) {
2440: $output = &row_title($title,$css_class);
2441: }
2442: $output .= qq|
2443: <select name="roles" multiple="multiple">\n|;
2444: foreach my $role (@$roles) {
2445: my $plrole;
2446: if ($role eq 'ow') {
2447: $plrole = &mt('Course Owner');
2448: } elsif ($role eq 'cr') {
2449: if ($show_separate_custom) {
2450: if ($cdom ne '' && $cnum ne '') {
2451: my %course_customroles = &course_custom_roles($cdom,$cnum);
2452: foreach my $crrole (sort(keys(%course_customroles))) {
2453: my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
2454: $output .= ' <option value="'.$crrole.'">'.$plcrrole.
2455: '</option>';
2456: }
2457: }
2458: } else {
2459: $plrole = &mt('Custom Role');
2460: }
2461: } else {
2462: $plrole=&Apache::lonnet::plaintext($role,$crstype);
2463: }
2464: if (($role ne 'cr') || (!$show_separate_custom)) {
2465: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
2466: }
2467: }
2468: $output .= qq| </select>\n|;
2469: if (defined($title)) {
2470: $output .= &row_closure();
2471: }
2472: return $output;
2473: }
2474:
2475: sub course_select_row {
2476: my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
2477: $css_class,$crstype,$standardnames) = @_;
2478: my $output = &row_title($title,$css_class);
2479: $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames);
2480: $output .= &row_closure();
2481: return $output;
2482: }
2483:
2484: sub course_selection {
2485: my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames) = @_;
2486: my $output = qq|
2487: <script type="text/javascript">
2488: // <![CDATA[
2489: function coursePick (formname) {
2490: for (var i=0; i<formname.coursepick.length; i++) {
2491: if (formname.coursepick[i].value == 'category') {
2492: courseSet('');
2493: }
2494: if (!formname.coursepick[i].checked) {
2495: if (formname.coursepick[i].value == 'specific') {
2496: formname.coursetotal.value = 0;
2497: formname.courselist = '';
2498: }
2499: }
2500: }
2501: }
2502: function setPick (formname) {
2503: for (var i=0; i<formname.coursepick.length; i++) {
2504: if (formname.coursepick[i].value == 'category') {
2505: formname.coursepick[i].checked = true;
2506: }
2507: formname.coursetotal.value = 0;
2508: formname.courselist = '';
2509: }
2510: }
2511: // ]]>
2512: </script>
2513: |;
2514:
2515: my ($allcrs,$pickspec);
2516: if ($crstype eq 'Community') {
2517: $allcrs = &mt('All communities');
2518: $pickspec = &mt('Pick specific communities:');
2519: } else {
2520: $allcrs = &mt('All courses');
2521: $pickspec = &mt('Pick specific course(s):');
2522: }
2523:
2524: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
2525: ($formname,'pickcourse','pickdomain','coursedesc','',1,$crstype).'</b>';
2526: $output .= '<label><input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.$allcrs.'</label><br />';
2527: if ($totcodes > 0) {
2528: my $numtitles = @$codetitles;
2529: if ($numtitles > 0) {
2530: $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 />';
2531: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
2532: '<select name="'.$standardnames->[0].
2533: '" onchange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
2534: ' <option value="-1" />Select'."\n";
2535: my @items = ();
2536: my @longitems = ();
2537: if ($$idlist{$$codetitles[0]} =~ /","/) {
2538: @items = split(/","/,$$idlist{$$codetitles[0]});
2539: } else {
2540: $items[0] = $$idlist{$$codetitles[0]};
2541: }
2542: if (defined($$idlist_titles{$$codetitles[0]})) {
2543: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
2544: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
2545: } else {
2546: $longitems[0] = $$idlist_titles{$$codetitles[0]};
2547: }
2548: for (my $i=0; $i<@longitems; $i++) {
2549: if ($longitems[$i] eq '') {
2550: $longitems[$i] = $items[$i];
2551: }
2552: }
2553: } else {
2554: @longitems = @items;
2555: }
2556: for (my $i=0; $i<@items; $i++) {
2557: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
2558: }
2559: $output .= '</select></td>';
2560: for (my $i=1; $i<$numtitles; $i++) {
2561: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
2562: '<select name="'.$standardnames->[$i].
2563: '" onchange="courseSet('."'$$codetitles[$i]'".')">'."\n".
2564: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
2565: '</select>'."\n".
2566: '</td>';
2567: }
2568: $output .= '</tr></table><br />';
2569: }
2570: }
2571: $output .=
2572: '<label><input type="radio" name="coursepick" value="specific"'
2573: .' onclick="coursePick(this.form);opencrsbrowser('."'".$formname."','dccourse','dcdomain','coursedesc','','1','$crstype'".')" />'
2574: .$pickspec.'</label>'
2575: .' '.$courseform.' '
2576: .&mt('[_1] selected.',
2577: '<input type="text" value="0" size="4" name="coursetotal" readonly="readonly" />'
2578: .'<input type="hidden" name="courselist" value="" />')
2579: .'<br />'."\n";
2580: return $output;
2581: }
2582:
2583: sub status_select_row {
2584: my ($types,$title,$css_class) = @_;
2585: my $output;
2586: if (defined($title)) {
2587: $output = &row_title($title,$css_class,'LC_pick_box_select');
2588: }
2589: $output .= qq|
2590: <select name="types" multiple="multiple">\n|;
2591: foreach my $status_type (sort(keys(%{$types}))) {
2592: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
2593: }
2594: $output .= qq| </select>\n|;
2595: if (defined($title)) {
2596: $output .= &row_closure();
2597: }
2598: return $output;
2599: }
2600:
2601: sub email_default_row {
2602: my ($authtypes,$title,$descrip,$css_class) = @_;
2603: my $output = &row_title($title,$css_class);
2604: $output .= $descrip.
2605: &Apache::loncommon::start_data_table().
2606: &Apache::loncommon::start_data_table_header_row().
2607: '<th>'.&mt('Authentication Method').'</th>'.
2608: '<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
2609: &Apache::loncommon::end_data_table_header_row();
2610: my $rownum = 0;
2611: foreach my $auth (sort(keys(%{$authtypes}))) {
2612: my ($userentry,$size);
2613: if ($auth =~ /^krb/) {
2614: $userentry = '';
2615: $size = 25;
2616: } else {
2617: $userentry = 'username@';
2618: $size = 15;
2619: }
2620: $output .= &Apache::loncommon::start_data_table_row().
2621: '<td> '.$$authtypes{$auth}.'</td>'.
2622: '<td align="right">'.$userentry.
2623: '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
2624: &Apache::loncommon::end_data_table_row();
2625: }
2626: $output .= &Apache::loncommon::end_data_table();
2627: $output .= &row_closure();
2628: return $output;
2629: }
2630:
2631:
2632: sub submit_row {
2633: my ($title,$cmd,$submit_text,$css_class) = @_;
2634: my $output = &row_title($title,$css_class,'LC_pick_box_submit');
2635: $output .= qq|
2636: <br />
2637: <input type="hidden" name="command" value="$cmd" />
2638: <input type="submit" value="$submit_text"/>
2639: <br /><br />
2640: \n|;
2641: return $output;
2642: }
2643:
2644: sub course_custom_roles {
2645: my ($cdom,$cnum) = @_;
2646: my %returnhash=();
2647: my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
2648: foreach my $person (sort(keys(%coursepersonnel))) {
2649: my ($role) = ($person =~ /^([^:]+):/);
2650: my ($end,$start) = split(/:/,$coursepersonnel{$person});
2651: if ($end == -1 && $start == -1) {
2652: next;
2653: }
2654: if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
2655: $returnhash{$role} ++;
2656: }
2657: }
2658: return %returnhash;
2659: }
2660:
2661:
2662: sub resource_info_box {
2663: my ($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp)=@_;
2664: my $return='';
2665: if ($stuvcurrent ne '') {
2666: $return = '<div class="LC_left_float">';
2667: }
2668: if ($symb) {
2669: $return.=&Apache::loncommon::start_data_table();
2670: my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symb);
2671: my $folder=&Apache::lonnet::gettitle($map);
2672: $return.=&Apache::loncommon::start_data_table_row().
2673: '<th align="left">'.&mt('Folder:').'</th><td>'.$folder.'</td>'.
2674: &Apache::loncommon::end_data_table_row();
2675: unless ($onlyfolderflag) {
2676: $return.=&Apache::loncommon::start_data_table_row().
2677: '<th align="left">'.&mt('Resource:').'</th><td>'.&Apache::lonnet::gettitle($symb).'</td>'.
2678: &Apache::loncommon::end_data_table_row();
2679: }
2680: if ($stuvcurrent ne '') {
2681: $return .= &Apache::loncommon::start_data_table_row().
2682: '<th align="left">'.&mt("Student's current version:").'</th><td>'.$stuvcurrent.'</td>'.
2683: &Apache::loncommon::end_data_table_row();
2684: }
2685: if ($stuvdisp ne '') {
2686: $return .= &Apache::loncommon::start_data_table_row().
2687: '<th align="left">'.&mt("Student's version displayed:").'</th><td>'.$stuvdisp.'</td>'.
2688: &Apache::loncommon::end_data_table_row();
2689: }
2690: $return.=&Apache::loncommon::end_data_table();
2691: } else {
2692: $return='<p><span class="LC_error">'.&mt('No context provided.').'</span></p>';
2693: }
2694: if ($stuvcurrent ne '') {
2695: $return .= '</div>';
2696: }
2697: return $return;
2698: }
2699:
2700: # display_usage
2701: #
2702: # Generates a div containing a block, filled to show percentage of current quota used
2703: #
2704: # Quotas available for user portfolios, group portfolios, authoring spaces, and course
2705: # content stored directly within a course (i.e., excluding published content).
2706: #
2707:
2708: sub display_usage {
2709: my ($current_disk_usage,$disk_quota,$context) = @_;
2710: my $usage = $current_disk_usage/1024;
2711: my $quota = $disk_quota/1024;
2712: my $percent;
2713: if ($disk_quota == 0) {
2714: $percent = 100.0;
2715: } else {
2716: $percent = 100*($current_disk_usage/$disk_quota);
2717: }
2718: $usage = sprintf("%.2f",$usage);
2719: $quota = sprintf("%.2f",$quota);
2720: $percent = sprintf("%.0f",$percent);
2721: my ($color,$cssclass);
2722: if ($percent <= 60) {
2723: $color = '#00A000';
2724: } elsif ($percent > 60 && $percent < 90) {
2725: $color = '#FFD300';
2726: $cssclass = 'class="LC_warning"';
2727: } elsif( $percent >= 90) {
2728: $color = '#FF0000';
2729: $cssclass = 'class="LC_error"';
2730: }
2731: my $prog_width = $percent;
2732: if ($prog_width > 100) {
2733: $prog_width = 100;
2734: }
2735: my $display = 'block';
2736: if ($context eq 'authoring') {
2737: $display = 'inline';
2738: }
2739: return '
2740: <div id="meter1" align="left" style="display:'.$display.'" '.$cssclass.'>'.&mt('Currently using [_1] of the [_2] available.',$usage.' MB <span style="font-weight:bold;">('.$percent.'%)</span>',$quota.' MB')."\n".
2741: ' <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".
2742: ' <div id="meter3" style="display:block; background-color:'.$color.'; width:'.$prog_width.'%; height:10px; color:#000000; margin:0px;"></div>'."\n".
2743: ' </div>'."\n".
2744: ' </div>';
2745: }
2746:
2747: ##############################################
2748: ##############################################
2749:
2750: # topic_bar
2751: #
2752: # Generates a div containing an (optional) number with a white background followed by a
2753: # title with a background color defined in the corresponding CSS: LC_topic_bar
2754: # Inputs:
2755: # 1. number to display.
2756: # If input for number is empty only the title will be displayed.
2757: # 2. title text to display.
2758: # 3. optional id for the <div>
2759: # Outputs - a scalar containing html mark-up for the div.
2760:
2761: sub topic_bar {
2762: my ($num,$title,$id) = @_;
2763: my $number = '';
2764: if ($num ne '') {
2765: $number = '<span>'.$num.'</span>';
2766: }
2767: if ($id ne '') {
2768: $id = 'id="'.$id.'"';
2769: }
2770: return '<div class="LC_topic_bar" '.$id.'>'.$number.$title.'</div>';
2771: }
2772:
2773: ##############################################
2774: ##############################################
2775: # echo_form_input
2776: #
2777: # Generates html markup to add form elements from the referrer page
2778: # as hidden form elements (values encoded) in the new page.
2779: #
2780: # Intended to support two types of use
2781: # (a) to allow backing up to earlier pages in a multi-page
2782: # form submission process using a breadcrumb trail.
2783: #
2784: # (b) to allow the current page to be reloaded with form elements
2785: # set on previous page to remain unchanged. An example would
2786: # be where the a page containing a dynamically-built table of data is
2787: # is to be redisplayed, with only the sort order of the data changed.
2788: #
2789: # Inputs:
2790: # 1. Reference to array of form elements in the submitted form on
2791: # the referrer page which are to be excluded from the echoed elements.
2792: #
2793: # 2. Reference to array of regular expressions, which if matched in the
2794: # name of the form element n the referrer page will be omitted from echo.
2795: #
2796: # Outputs: A scalar containing the html markup for the echoed form
2797: # elements (all as hidden elements, with values encoded).
2798:
2799:
2800: sub echo_form_input {
2801: my ($excluded,$regexps) = @_;
2802: my $output = '';
2803: foreach my $key (keys(%env)) {
2804: if ($key =~ /^form\.(.+)$/) {
2805: my $name = $1;
2806: my $match = 0;
2807: if (ref($excluded) eq 'ARRAY') {
2808: next if (grep(/^\Q$name\E$/,@{$excluded}));
2809: }
2810: if (ref($regexps) eq 'ARRAY') {
2811: if (@{$regexps} > 0) {
2812: foreach my $regexp (@{$regexps}) {
2813: if ($name =~ /$regexp/) {
2814: $match = 1;
2815: last;
2816: }
2817: }
2818: }
2819: }
2820: next if ($match);
2821: if (ref($env{$key}) eq 'ARRAY') {
2822: foreach my $value (@{$env{$key}}) {
2823: $value = &HTML::Entities::encode($value,'<>&"');
2824: $output .= '<input type="hidden" name="'.$name.
2825: '" value="'.$value.'" />'."\n";
2826: }
2827: } else {
2828: my $value = &HTML::Entities::encode($env{$key},'<>&"');
2829: $output .= '<input type="hidden" name="'.$name.
2830: '" value="'.$value.'" />'."\n";
2831: }
2832: }
2833: }
2834: return $output;
2835: }
2836:
2837: ##############################################
2838: ##############################################
2839: # set_form_elements
2840: #
2841: # Generates javascript to set form elements to values based on
2842: # corresponding values for the same form elements when the page was
2843: # previously submitted.
2844: #
2845: # Last submission values are read from hidden form elements in referring
2846: # page which have the same name, i.e., generated by &echo_form_input().
2847: #
2848: # Intended to be called by onload event.
2849: #
2850: # Inputs:
2851: # (a) Reference to hash of echoed form elements to be set.
2852: #
2853: # In the hash, keys are the form element names, and the values are the
2854: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
2855: # hidden).
2856: #
2857: # (b) Optional reference to hash of stored elements to be set.
2858: #
2859: # If the page being displayed is a page which permits modification of
2860: # previously stored data, e.g., the first page in a multi-page submission,
2861: # then if stored is supplied, form elements will be set to the last stored
2862: # values. If user supplied values are also available for the same elements
2863: # these will replace the stored values.
2864: #
2865: # Output:
2866: #
2867: # javascript function - set_form_elements() which sets form elements,
2868: # expects an argument: formname - the name of the form according to
2869: # the DOM, e.g., document.compose
2870:
2871: sub set_form_elements {
2872: my ($elements,$stored) = @_;
2873: my %values;
2874: my $output .= 'function setFormElements(courseForm) {
2875: ';
2876: if (defined($stored)) {
2877: foreach my $name (keys(%{$stored})) {
2878: if (exists($$elements{$name})) {
2879: if (ref($$stored{$name}) eq 'ARRAY') {
2880: $values{$name} = $$stored{$name};
2881: } else {
2882: @{$values{$name}} = ($$stored{$name});
2883: }
2884: }
2885: }
2886: }
2887:
2888: foreach my $key (keys(%env)) {
2889: if ($key =~ /^form\.(.+)$/) {
2890: my $name = $1;
2891: if (exists($$elements{$name})) {
2892: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
2893: }
2894: }
2895: }
2896:
2897: foreach my $name (keys(%values)) {
2898: for (my $i=0; $i<@{$values{$name}}; $i++) {
2899: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
2900: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
2901: $values{$name}[$i] =~ s/"/\\"/g;
2902: }
2903: if (($$elements{$name} eq 'text') || ($$elements{$name} eq 'hidden')) {
2904: my $numvalues = @{$values{$name}};
2905: if ($numvalues > 1) {
2906: my $valuestring = join('","',@{$values{$name}});
2907: $output .= qq|
2908: var textvalues = new Array ("$valuestring");
2909: var total = courseForm.elements['$name'].length;
2910: if (total > $numvalues) {
2911: total = $numvalues;
2912: }
2913: for (var i=0; i<total; i++) {
2914: courseForm.elements['$name']\[i].value = textvalues[i];
2915: }
2916: |;
2917: } else {
2918: $output .= qq|
2919: courseForm.elements['$name'].value = "$values{$name}[0]";
2920: |;
2921: }
2922: } else {
2923: $output .= qq|
2924: var elementLength = courseForm.elements['$name'].length;
2925: if (elementLength==undefined) {
2926: |;
2927: foreach my $value (@{$values{$name}}) {
2928: if ($$elements{$name} eq 'selectbox') {
2929: $output .= qq|
2930: if (courseForm.elements['$name'].options[0].value == "$value") {
2931: courseForm.elements['$name'].options[0].selected = true;
2932: }|;
2933: } elsif (($$elements{$name} eq 'radio') ||
2934: ($$elements{$name} eq 'checkbox')) {
2935: $output .= qq|
2936: if (courseForm.elements['$name'].value == "$value") {
2937: courseForm.elements['$name'].checked = true;
2938: } else {
2939: courseForm.elements['$name'].checked = false;
2940: }|;
2941: }
2942: }
2943: $output .= qq|
2944: }
2945: else {
2946: for (var i=0; i<courseForm.elements['$name'].length; i++) {
2947: |;
2948: if ($$elements{$name} eq 'selectbox') {
2949: $output .= qq|
2950: courseForm.elements['$name'].options[i].selected = false;|;
2951: } elsif (($$elements{$name} eq 'radio') ||
2952: ($$elements{$name} eq 'checkbox')) {
2953: $output .= qq|
2954: courseForm.elements['$name']\[i].checked = false;|;
2955: }
2956: $output .= qq|
2957: }
2958: for (var j=0; j<courseForm.elements['$name'].length; j++) {
2959: |;
2960: foreach my $value (@{$values{$name}}) {
2961: if ($$elements{$name} eq 'selectbox') {
2962: $output .= qq|
2963: if (courseForm.elements['$name'].options[j].value == "$value") {
2964: courseForm.elements['$name'].options[j].selected = true;
2965: }|;
2966: } elsif (($$elements{$name} eq 'radio') ||
2967: ($$elements{$name} eq 'checkbox')) {
2968: $output .= qq|
2969: if (courseForm.elements['$name']\[j].value == "$value") {
2970: courseForm.elements['$name']\[j].checked = true;
2971: }|;
2972: }
2973: }
2974: $output .= qq|
2975: }
2976: }
2977: |;
2978: }
2979: }
2980: $output .= "
2981: return;
2982: }\n";
2983: return $output;
2984: }
2985:
2986: ##############################################
2987: ##############################################
2988:
2989: sub file_submissionchk_js {
2990: my ($turninpaths,$multiples) = @_;
2991: my $overwritewarn = &mt('File(s) you uploaded for your submission will overwrite existing file(s) submitted for this item')."\n".
2992: &mt('Continue submission and overwrite the file(s)?');
2993: &js_escape(\$overwritewarn);
2994: my $delfilewarn = &mt('You have indicated you wish to remove some files previously included in your submission.')."\n".
2995: &mt('Continue submission with these files removed?');
2996: &js_escape(\$delfilewarn);
2997: my ($turninpathtext,$multtext,$arrayindexofjs);
2998: if (ref($turninpaths) eq 'HASH') {
2999: foreach my $key (sort(keys(%{$turninpaths}))) {
3000: $turninpathtext .= " if (prefix == '$key') {\n".
3001: " return '$turninpaths->{$key}';\n".
3002: " }\n";
3003: }
3004: }
3005: $turninpathtext .= " return '';\n";
3006: if (ref($multiples) eq 'HASH') {
3007: foreach my $key (sort(keys(%{$multiples}))) {
3008: $multtext .= " if (prefix == '$key') {\n".
3009: " return '$multiples->{$key}';\n".
3010: " }\n";
3011: }
3012: }
3013: $multtext .= " return '';\n";
3014:
3015: $arrayindexofjs = &Apache::loncommon::javascript_array_indexof();
3016: return <<"ENDSCRIPT";
3017: <script type="text/javascript">
3018: // <![CDATA[
3019:
3020: function file_submission_check(formname,path,multiresp) {
3021: var elemnum = formname.elements.length;
3022: if (elemnum == 0) {
3023: return true;
3024: }
3025: var alloverwrites = [];
3026: var alldelconfirm = [];
3027: var result = [];
3028: var submitter;
3029: var subprefix;
3030: var allsub = getIndexByName(formname,'all_submit');
3031: if (allsub == -1) {
3032: var idx = getIndexByName(formname,'submitted');
3033: if (idx != -1) {
3034: var subval = String(formname.elements[idx].value);
3035: submitter = subval.replace(/^part_/,'');
3036: result = overwritten_check(formname,path,multiresp,submitter);
3037: alloverwrites.push.apply(alloverwrites,result['overwrite']);
3038: alldelconfirm.push.apply(alldelconfirm,result['delete']);
3039: }
3040: } else {
3041: if (formname.elements[allsub].type == 'submit') {
3042: var partsub = /^\\d+\\.\\d+_submit_.+\$/;
3043: var allprefixes = [];
3044: var allparts = [];
3045: for (var i=0; i<formname.elements.length; i++) {
3046: if (formname.elements[i].type == 'submit') {
3047: var elemname = formname.elements[i].name;
3048: var subname = String(elemname);
3049: var savesub = String(elemname);
3050: if (partsub.test(subname)) {
3051: var prefix = subname.replace(/_submit_.+\$/,'');
3052: if (allprefixes.indexOf(prefix) == -1) {
3053: allprefixes.push(prefix);
3054: allparts[prefix] = [];
3055: }
3056: var part = savesub.replace(/^\\d+\\.\\d+_submit_/,'');
3057: allparts[prefix].push(part);
3058: }
3059: }
3060: }
3061: for (var k=0; k<allprefixes.length; k++) {
3062: var idx = getIndexByName(formname,allprefixes[k]+'_submitted');
3063: if (idx > -1) {
3064: if (formname.elements[idx].value != 'yes') {
3065: submitterval = formname.elements[idx].value;
3066: submitter = submitterval.replace(/^part_/,'');
3067: subprefix = allprefixes[k];
3068: result = overwritten_check(formname,path,multiresp,submitter,subprefix);
3069: alloverwrites.push.apply(alloverwrites,result['overwrite']);
3070: alldelconfirm.push.apply(alldelconfirm,result['delete']);
3071: break;
3072: }
3073: }
3074: }
3075: if (submitter == '' || submitter == undefined) {
3076: for (var m=0; m<allprefixes.length; m++) {
3077: for (var n=0; n<allparts[allprefixes[m]].length; n++) {
3078: var result = overwritten_check(formname,path,multiresp,allparts[allprefixes[m]][n],allprefixes[m]);
3079: alloverwrites.push.apply(alloverwrites,result['overwrite']);
3080: alldelconfirm.push.apply(alldelconfirm,result['delete']);
3081: }
3082: }
3083: }
3084: }
3085: }
3086: if (alloverwrites.length > 0) {
3087: if (!confirm("$overwritewarn")) {
3088: for (var n=0; n<alloverwrites.length; n++) {
3089: formname.elements[alloverwrites[n]].value = "";
3090: }
3091: return false;
3092: }
3093: }
3094: if (alldelconfirm.length > 0) {
3095: if (!confirm("$delfilewarn")) {
3096: for (var p=0; p<alldelconfirm.length; p++) {
3097: formname.elements[alldelconfirm[p]].checked = false;
3098: }
3099: return false;
3100: }
3101: }
3102: return true;
3103: }
3104:
3105: function getIndexByName(formname,item) {
3106: for (var i=0;i<formname.elements.length;i++) {
3107: if (formname.elements[i].name == item) {
3108: return i;
3109: }
3110: }
3111: return -1;
3112: }
3113:
3114: function overwritten_check(formname,path,multiresp,part,prefix) {
3115: var result = [];
3116: result['overwrite'] = [];
3117: result['delete'] = [];
3118: var elemnum = formname.elements.length;
3119: if (elemnum == 0) {
3120: return result;
3121: }
3122: var uploadstr;
3123: var deletestr;
3124: if ((prefix != undefined) && (prefix != '')) {
3125: var prepend = prefix+'_';
3126: uploadstr = new RegExp("^"+prepend+"HWFILE"+part+".+\$");
3127: deletestr = new RegExp("^"+prepend+"HWFILE"+part+".+_\\\\d+_delete\$");
3128: multiresp = check_for_multiples(prepend);
3129: path = check_for_turninpath(prepend);
3130: } else {
3131: uploadstr = new RegExp("^HWFILE"+part+".+\$");
3132: deletestr = new RegExp("^HWFILE"+part+".+_\\\\d+_delete\$");
3133: }
3134: var alluploads = [];
3135: var allchecked = [];
3136: var allskipdel = [];
3137: var fnametrim = /[^\\/\\\\]+\$/;
3138: for (var i=0; i<formname.elements.length; i++) {
3139: var id = formname.elements[i].id;
3140: if (id != '') {
3141: if (uploadstr.test(id)) {
3142: if (formname.elements[i].type == 'file') {
3143: alluploads.push(id);
3144: } else {
3145: if (deletestr.test(id)) {
3146: if (formname.elements[i].type == 'checkbox') {
3147: if (formname.elements[i].checked) {
3148: allchecked.push(id);
3149: }
3150: }
3151: }
3152: }
3153: }
3154: }
3155: }
3156: for (var j=0; j<alluploads.length; j++) {
3157: var delstr = new RegExp("^"+alluploads[j]+"_\\\\d+_delete\$");
3158: var delboxes = [];
3159: for (var k=0; k<formname.elements.length; k++) {
3160: var id = formname.elements[k].id;
3161: if ((id != '') && (id != undefined)) {
3162: if (delstr.test(id)) {
3163: if (formname.elements[k].type == 'checkbox') {
3164: delboxes.push(id);
3165: }
3166: }
3167: }
3168: }
3169: if (delboxes.length > 0) {
3170: if ((formname.elements[alluploads[j]].value != undefined) &&
3171: (formname.elements[alluploads[j]].value != '')) {
3172: var filepath = formname.elements[alluploads[j]].value;
3173: var newfilename = fnametrim.exec(filepath);
3174: if (newfilename != null) {
3175: var filename = String(newfilename);
3176: var nospaces = filename.replace(/\\s+/g,'_');
3177: var nospecials = nospaces.replace(/[^\\/\\w\\.\\-]/g,'');
3178: var cleanfilename = nospecials.replace(/\\.(\\d+\\.)/g,"_\$1");
3179: if (cleanfilename != '') {
3180: var fullpath = path+"/"+cleanfilename;
3181: if (multiresp == 1) {
3182: var partid = String(alluploads[i]);
3183: var subdir = partid.replace(/^\\d*.?\\d*_?HWFILE/,'');
3184: if (subdir != "" && subdir != undefined) {
3185: fullpath = path+"/"+subdir+"/"+cleanfilename;
3186: }
3187: }
3188: for (var m=0; m<delboxes.length; m++) {
3189: if (fullpath == formname.elements[delboxes[m]].value) {
3190: if (formname.elements[delboxes[m]].checked) {
3191: allskipdel.push(delboxes[m]);
3192: } else {
3193: result['overwrite'].push(alluploads[j]);
3194: }
3195: break;
3196: }
3197: }
3198: }
3199: }
3200: }
3201: }
3202: }
3203: if (allchecked.length > 0) {
3204: if (allskipdel.length > 0) {
3205: for (var n=0; n<allchecked.length; n++) {
3206: if (allskipdel.indexOf(allchecked[n]) == -1) {
3207: result['delete'].push(allchecked[n]);
3208: }
3209: }
3210: } else {
3211: result['delete'].push.apply(result['delete'],allchecked);
3212: }
3213: }
3214: return result;
3215: }
3216:
3217: function check_for_multiples(prefix) {
3218: $multtext
3219: }
3220:
3221: function check_for_turninpath(prefix) {
3222: $turninpathtext
3223: }
3224:
3225: // ]]>
3226: </script>
3227:
3228: $arrayindexofjs
3229:
3230: ENDSCRIPT
3231: }
3232:
3233: ##############################################
3234: ##############################################
3235:
3236: sub resize_scrollbox_js {
3237: my ($context,$tabidstr,$tid) = @_;
3238: my (%names,$paddingwfrac,$offsetwfrac,$offsetv,$minw,$minv);
3239: if ($context eq 'docs') {
3240: %names = (
3241: boxw => 'contenteditor',
3242: item => 'contentlist',
3243: header => 'uploadfileresult',
3244: scroll => 'contentscroll',
3245: boxh => 'contenteditor',
3246: );
3247: $paddingwfrac = 0.09;
3248: $offsetwfrac = 0.015;
3249: $offsetv = 20;
3250: $minw = 250;
3251: $minv = 200;
3252: } elsif ($context eq 'params') {
3253: %names = (
3254: boxw => 'parameditor',
3255: item => 'mapmenuinner',
3256: header => 'parmstep1',
3257: scroll => 'mapmenuscroll',
3258: boxh => 'parmlevel',
3259: );
3260: $paddingwfrac = 0.2;
3261: $offsetwfrac = 0.015;
3262: $offsetv = 80;
3263: $minw = 100;
3264: $minv = 100;
3265: }
3266: my $viewport_js = &Apache::loncommon::viewport_geometry_js();
3267: my $output = '
3268:
3269: window.onresize=callResize;
3270:
3271: ';
3272: if ($context eq 'docs') {
3273: if ($env{'form.active'}) {
3274: $output .= "\nvar activeTab = '$env{'form.active'}$tid';\n";
3275: } else {
3276: $output .= "\nvar activeTab = '';\n";
3277: }
3278: }
3279: $output .= <<"FIRST";
3280:
3281: $viewport_js
3282:
3283: function resize_scrollbox(scrollboxname,chkw,chkh) {
3284: var scrollboxid = 'div_'+scrollboxname;
3285: var scrolltableid = 'table_'+scrollboxname;
3286: var scrollbox;
3287: var scrolltable;
3288: var ismobile = '$env{'browser.mobile'}';
3289:
3290: if (document.getElementById("$names{'boxw'}") == null) {
3291: return;
3292: }
3293:
3294: if (document.getElementById(scrollboxid) == null) {
3295: return;
3296: } else {
3297: scrollbox = document.getElementById(scrollboxid);
3298: }
3299:
3300:
3301: if (document.getElementById(scrolltableid) == null) {
3302: return;
3303: } else {
3304: scrolltable = document.getElementById(scrolltableid);
3305: }
3306:
3307: init_geometry();
3308: var vph = Geometry.getViewportHeight();
3309: var vpw = Geometry.getViewportWidth();
3310:
3311: FIRST
3312: if ($context eq 'docs') {
3313: $output .= "
3314: var alltabs = ['$tabidstr'];
3315: ";
3316: } elsif ($context eq 'params') {
3317: $output .= "
3318: if (document.getElementById('$names{'boxh'}') == null) {
3319: return;
3320: }
3321: ";
3322: }
3323: $output .= <<"SECOND";
3324: var listwchange;
3325: var scrollchange;
3326: if (chkw == 1) {
3327: var boxw = document.getElementById("$names{'boxw'}").offsetWidth;
3328: var itemw;
3329: var itemid = document.getElementById("$names{'item'}");
3330: if (itemid != null) {
3331: itemw = itemid.offsetWidth;
3332: }
3333: var itemwstart = itemw;
3334:
3335: var scrollboxw = scrollbox.offsetWidth;
3336: var scrollboxscrollw = scrollbox.scrollWidth;
3337: var scrollstart = scrollboxw;
3338:
3339: var offsetw = parseInt(vpw * $offsetwfrac);
3340: var paddingw = parseInt(vpw * $paddingwfrac);
3341:
3342: var minscrollboxw = $minw;
3343: var maxcolw = 0;
3344: SECOND
3345: if ($context eq 'docs') {
3346: $output .= <<"DOCSONE";
3347: var actabw = 0;
3348: for (var i=0; i<alltabs.length; i++) {
3349: if (activeTab == alltabs[i]) {
3350: actabw = document.getElementById(alltabs[i]).offsetWidth;
3351: if (actabw > maxcolw) {
3352: maxcolw = actabw;
3353: }
3354: } else {
3355: if (document.getElementById(alltabs[i]) != null) {
3356: var thistab = document.getElementById(alltabs[i]);
3357: thistab.style.visibility = 'hidden';
3358: thistab.style.display = 'block';
3359: var tabw = document.getElementById(alltabs[i]).offsetWidth;
3360: thistab.style.display = 'none';
3361: thistab.style.visibility = '';
3362: if (tabw > maxcolw) {
3363: maxcolw = tabw;
3364: }
3365: }
3366: }
3367: }
3368: DOCSONE
3369: } elsif ($context eq 'params') {
3370: $output .= <<"PARAMSONE";
3371: var parmlevelrows = new Array();
3372: var mapmenucells = new Array();
3373: parmlevelrows = document.getElementById("$names{'boxh'}").rows;
3374: var numrows = parmlevelrows.length;
3375: if (numrows > 1) {
3376: mapmenucells = parmlevelrows[2].getElementsByTagName('td');
3377: }
3378: maxcolw = mapmenucells[0].offsetWidth;
3379: PARAMSONE
3380: }
3381: $output .= <<"THIRD";
3382: if (maxcolw > 0) {
3383: var newscrollboxw;
3384: if (maxcolw+paddingw+scrollboxscrollw<boxw) {
3385: newscrollboxw = boxw-paddingw-maxcolw;
3386: if (newscrollboxw < minscrollboxw) {
3387: newscrollboxw = minscrollboxw;
3388: }
3389: scrollbox.style.width = newscrollboxw+"px";
3390: if (newscrollboxw != scrollboxw) {
3391: var newitemw = newscrollboxw-offsetw;
3392: itemid.style.width = newitemw+"px";
3393: }
3394: } else {
3395: newscrollboxw = boxw-paddingw-maxcolw;
3396: if (newscrollboxw < minscrollboxw) {
3397: newscrollboxw = minscrollboxw;
3398: }
3399: scrollbox.style.width = newscrollboxw+"px";
3400: if (newscrollboxw != scrollboxw) {
3401: var newitemw = newscrollboxw-offsetw;
3402: itemid.style.width = newitemw+"px";
3403: }
3404: }
3405:
3406: if (newscrollboxw != scrollboxw) {
3407: var newscrolltablew = newscrollboxw+offsetw;
3408: scrolltable.style.width = newscrolltablew+"px";
3409: }
3410: }
3411:
3412: if (newscrollboxw != scrollboxw) {
3413: scrollchange = 1;
3414: }
3415:
3416: if (itemid.offsetWidth != itemwstart) {
3417: listwchange = 1;
3418: }
3419: }
3420: if ((chkh == 1) || (listwchange)) {
3421: var itemid = document.getElementById("$names{'item'}");
3422: if (itemid != null) {
3423: itemh = itemid.offsetHeight;
3424: }
3425: var primaryheight = document.getElementById('LC_nav_bar').offsetHeight;
3426: var secondaryheight;
3427: if (document.getElementById('LC_secondary_menu') != null) {
3428: secondaryheight = document.getElementById('LC_secondary_menu').offsetHeight;
3429: }
3430: var crumbsheight = document.getElementById('LC_breadcrumbs').offsetHeight;
3431: var dccidheight = 0;
3432: if (document.getElementById('dccid') != null) {
3433: dccidheight = document.getElementById('dccid').offsetHeight;
3434: }
3435: var headerheight = 0;
3436: if (document.getElementById("$names{'header'}") != null) {
3437: headerheight = document.getElementById("$names{'header'}").offsetHeight;
3438: }
3439: var tabbedheight = document.getElementById("tabbededitor").offsetHeight;
3440: var boxheight = document.getElementById("$names{'boxh'}").offsetHeight;
3441: var freevspace = vph-(primaryheight+secondaryheight+crumbsheight+dccidheight+headerheight+tabbedheight+boxheight);
3442:
3443: var scrollboxheight = scrollbox.offsetHeight;
3444: var scrollboxscrollheight = scrollbox.scrollHeight;
3445: var scrollboxh = scrollboxheight;
3446:
3447: var minvscrollbox = $minv;
3448: var offsetv = $offsetv;
3449: var newscrollboxheight;
3450: if (freevspace < 0) {
3451: newscrollboxheight = scrollboxheight+freevspace-offsetv;
3452: if (newscrollboxheight < minvscrollbox) {
3453: newscrollboxheight = minvscrollbox;
3454: }
3455: scrollbox.style.height = newscrollboxheight + "px";
3456: } else {
3457: if (scrollboxscrollheight > scrollboxheight) {
3458: if (freevspace > offsetv) {
3459: newscrollboxheight = scrollboxheight+freevspace-offsetv;
3460: if (newscrollboxheight < minvscrollbox) {
3461: newscrollboxheight = minvscrollbox;
3462: }
3463: scrollbox.style.height = newscrollboxheight+"px";
3464: }
3465: }
3466: }
3467: scrollboxheight = scrollbox.offsetHeight;
3468: var itemh = document.getElementById("$names{'item'}").offsetHeight;
3469:
3470: if (scrollboxscrollheight <= scrollboxheight) {
3471: if ((itemh+offsetv)<scrollboxheight) {
3472: newscrollheight = itemh+offsetv;
3473: scrollbox.style.height = newscrollheight+"px";
3474: }
3475: }
3476: var newscrollboxh = scrollbox.offsetHeight;
3477: if (scrollboxh != newscrollboxh) {
3478: scrollchange = 1;
3479: }
3480: }
3481: if (ismobile && scrollchange) {
3482: \$("#div_$names{'scroll'}").getNiceScroll().onResize();
3483: }
3484: return;
3485: }
3486:
3487: function callResize() {
3488: var timer;
3489: clearTimeout(timer);
3490: timer=setTimeout('resize_scrollbox("$names{'scroll'}","1","1")',500);
3491: }
3492:
3493: THIRD
3494: return $output;
3495: }
3496:
3497: ##############################################
3498: ##############################################
3499:
3500: sub javascript_jumpto_resource {
3501: my $confirm_switch = &mt("Editing requires switching to the resource's home server.")."\n".
3502: &mt('Switch server?');
3503: &js_escape(\$confirm_switch);
3504: return (<<ENDUTILITY)
3505:
3506: function go(url) {
3507: if (url!='' && url!= null) {
3508: currentURL = null;
3509: currentSymb= null;
3510: var lcHostname = setLCHost();
3511: if (lcHostname!='' && lcHostname!= null) {
3512: var RegExp = /^https?\:/;
3513: if (RegExp.test(url)) {
3514: window.location.href=url;
3515: } else {
3516: window.location.href=lcHostname+url;
3517: }
3518: } else {
3519: window.location.href=url;
3520: }
3521: }
3522: }
3523:
3524: function need_switchserver(url) {
3525: if (url!='' && url!= null) {
3526: if (confirm("$confirm_switch")) {
3527: go(url);
3528: }
3529: }
3530: return;
3531: }
3532:
3533: ENDUTILITY
3534:
3535: }
3536:
3537: sub jump_to_editres {
3538: my ($cfile,$home,$switchserver,$forceedit,$forcereg,$symb,$folderpath,
3539: $title,$hostname,$idx,$suppurl,$todocs,$suppanchor) = @_;
3540: my ($jscall,$anchor,$usehttp,$usehttps,$is_ext);
3541: if ($switchserver) {
3542: if ($home) {
3543: $cfile = '/adm/switchserver?otherserver='.$home.'&role='.
3544: &HTML::Entities::encode($env{'request.role'},'"<>&');
3545: if ($symb) {
3546: $cfile .= '&symb='.&HTML::Entities::encode($symb,'"<>&');
3547: } elsif ($folderpath) {
3548: $cfile .= '&folderpath='.&HTML::Entities::encode($folderpath,'"<>&');
3549: }
3550: if ($forceedit) {
3551: $cfile .= '&forceedit=1';
3552: }
3553: if ($forcereg) {
3554: $cfile .= '&register=1';
3555: }
3556: $jscall = "need_switchserver('".&Apache::loncommon::escape_single($cfile)."');";
3557: }
3558: } else {
3559: unless ($cfile =~ m{^/priv/}) {
3560: if ($cfile =~ m{^(/adm/wrapper/ext/([^#]+))(?:|#([^#]+))$}) {
3561: $cfile = $1;
3562: my $extlink = $2;
3563: $anchor = $3;
3564: $is_ext = 1;
3565: if (($extlink !~ /^https:/) && ($ENV{'SERVER_PORT'} == 443)) {
3566: unless (&Apache::lonnet::uses_sts()) {
3567: $usehttp = 1;
3568: }
3569: } elsif ($env{'request.use_absolute'}) {
3570: if ($env{'request.use_absolute'} =~ m{^https://}) {
3571: $usehttps = 1;
3572: }
3573: }
3574: } elsif ($cfile =~ m{^/?public/($match_domain)/($match_courseid)/syllabus}) {
3575: if ($ENV{'SERVER_PORT'} == 443) {
3576: my ($cdom,$cnum) = ($1,$2);
3577: if (($env{'request.course.id'}) &&
3578: ($env{'course.'.$env{'request.course.id'}.'.num'} eq $cnum) &&
3579: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $cdom)) {
3580: if ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://}) {
3581: unless (&Apache::lonnet::uses_sts()) {
3582: $usehttp = 1;
3583: }
3584: }
3585: }
3586: } elsif ($env{'request.use_absolute'}) {
3587: if ($env{'request.use_absolute'} =~ m{^https://}) {
3588: $usehttps = 1;
3589: }
3590: }
3591: }
3592: if ($symb) {
3593: if ($anchor ne '') {
3594: if ($symb =~ m{^([^#]+)\Q#$anchor\E$}) {
3595: $symb = $1.&escape(&escape('#')).$anchor;
3596: }
3597: }
3598: $cfile .= (($cfile=~/\?/)?'&':'?')."symb=$symb";
3599: } elsif ($folderpath) {
3600: $cfile .= (($cfile=~/\?/)?'&':'?').
3601: 'folderpath='.&HTML::Entities::encode(&escape($folderpath),'"<>&');
3602: if ($title) {
3603: $cfile .= (($cfile=~/\?/)?'&':'?').
3604: 'title='.&HTML::Entities::encode(&escape($title),'"<>&');
3605: }
3606: if ($idx) {
3607: $cfile .= (($cfile=~/\?/)?'&':'?').'idx='.$idx;
3608: }
3609: if ($suppurl) {
3610: $cfile .= (($cfile=~/\?/)?'&':'?').
3611: 'suppurl='.&HTML::Entities::encode(&escape($suppurl));
3612: }
3613: }
3614: if ($forceedit) {
3615: $cfile .= (($cfile=~/\?/)?'&':'?').'forceedit=1';
3616: if ($usehttps) {
3617: $cfile = $env{'request.use_absolute'}.(($cfile =~ /^\//)? '':'/').$cfile;
3618: }
3619: } elsif ($usehttp) {
3620: if ($hostname ne '') {
3621: $cfile = 'http://'.$hostname.(($cfile =~ /^\//)? '':'/').$cfile;
3622: }
3623: $cfile .= (($cfile=~/\?/)?'&':'?').'usehttp=1';
3624: } elsif ($usehttps) {
3625: $cfile = $env{'request.use_absolute'}.(($cfile =~ /^\//)? '':'/').$cfile;
3626: }
3627: if ($forcereg) {
3628: $cfile .= (($cfile=~/\?/)?'&':'?').'register=1';
3629: }
3630: if ($todocs) {
3631: $cfile .= (($cfile=~/\?/)?'&':'?').'todocs=1';
3632: }
3633: if ($suppanchor ne '') {
3634: $cfile .= (($cfile=~/\?/)?'&':'?').'anchor='.
3635: &HTML::Entities::encode($suppanchor,'"<>&');
3636: }
3637: }
3638: if ($anchor ne '') {
3639: $cfile .= '#'.$anchor;
3640: }
3641: $jscall = "go('".&Apache::loncommon::escape_single($cfile)."')";
3642: }
3643: return $jscall;
3644: }
3645:
3646: ##############################################
3647: ##############################################
3648:
3649: # javascript_valid_email
3650: #
3651: # Generates javascript to validate an e-mail address.
3652: # Returns a javascript function which accepts a form field as argument, and
3653: # returns false if field.value does not satisfy two regular expression matches
3654: # for a valid e-mail address. Backwards compatible with old browsers without
3655: # support for javascript RegExp (just checks for @ in field.value in this case).
3656:
3657: sub javascript_valid_email {
3658: my $scripttag .= <<'END';
3659: function validmail(field,suffix) {
3660: var str = field.value;
3661: if (suffix != '' && suffix != undefined) {
3662: str += suffix;
3663: }
3664: if (window.RegExp) {
3665: var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
3666: var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
3667: var reg1 = new RegExp(reg1str);
3668: var reg2 = new RegExp(reg2str);
3669: if (!reg1.test(str) && reg2.test(str)) {
3670: return true;
3671: }
3672: return false;
3673: }
3674: else
3675: {
3676: if(str.indexOf("@") >= 0) {
3677: return true;
3678: }
3679: return false;
3680: }
3681: }
3682: END
3683: return $scripttag;
3684: }
3685:
3686:
3687: # USAGE: htmltag(element, content, {attribute => value,...});
3688: #
3689: # EXAMPLES:
3690: # - htmltag('a', 'this is an anchor', {href => 'www.example.com',
3691: # title => 'this is a title'})
3692: #
3693: # - You might want to set up needed tags like:
3694: #
3695: # my $h3 = sub { return htmltag( "h3", @_ ) };
3696: #
3697: # ... and use them: $h3->("This is a headline")
3698: #
3699: # - To set up a couple of tags, see sub inittags
3700: #
3701: # NOTES:
3702: # - Empty elements, such as <br/> are correctly terminated,
3703: # i.e. htmltag('br') returns <br/>
3704: # - Empty attributes (title="") are filtered out.
3705: # - The function will not check for deprecated attributes.
3706: #
3707: # OUTPUT: content enclosed in xhtml conform tags
3708: sub htmltag{
3709: return
3710: qq|<$_[0]|
3711: . join( '', map { qq| $_="${$_[2]}{$_}"| if ${$_[2]}{$_} } keys(%{ $_[2] }) )
3712: . ($_[1] ? qq|>$_[1]</$_[0]>| : qq|/>|). "\n";
3713: };
3714:
3715:
3716: # USAGE: inittags(@tags);
3717: #
3718: # EXAMPLES:
3719: # - my ($h1, $h2, $h3) = inittags( qw( h1 h2 h3 ) )
3720: # $h1->("This is a headline") #Returns: <h1>This is a headline</h1>
3721: #
3722: # NOTES: See sub htmltag for further information.
3723: #
3724: # OUTPUT: List of subroutines.
3725: sub inittags {
3726: my @tags = @_;
3727: return map { my $tag = $_;
3728: sub { return htmltag( $tag, @_ ) }
3729: } @tags;
3730: }
3731:
3732:
3733: # USAGE: scripttag(scriptcode, [start|end|both]);
3734: #
3735: # EXAMPLES:
3736: # - scripttag("alert('Hello World!')", 'both')
3737: # returns:
3738: # <script type="text/javascript">
3739: # // BEGIN LON-CAPA Internal
3740: # alert(Hello World!')
3741: # // END LON-CAPA Internal
3742: # </script>
3743: #
3744: # NOTES:
3745: # - works currently only for javascripts
3746: #
3747: # OUTPUT:
3748: # Scriptcode properly enclosed in <script> and CDATA tags (and LC
3749: # Internal markers if 2nd argument is given)
3750: sub scripttag {
3751: my ( $content, $marker ) = @_;
3752: return unless defined $content;
3753:
3754: my $begin = "\n// BEGIN LON-CAPA Internal\n";
3755: my $end = "\n// END LON-CAPA Internal\n";
3756:
3757: if ($marker) {
3758: $content = $begin . $content if $marker eq 'start' or $marker eq 'both';
3759: $content .= $end if $marker eq 'end' or $marker eq 'both';
3760: }
3761:
3762: $content = "\n// <![CDATA[\n$content\n// ]]>\n";
3763:
3764: return htmltag('script', $content, {type => 'text/javascript'});
3765: };
3766:
3767: =pod
3768:
3769: =item &list_from_array( \@array, { listattr =>{}, itemattr =>{} } )
3770:
3771: Constructs a XHTML list from \@array.
3772:
3773: =over
3774:
3775: =item input:
3776:
3777: =over
3778:
3779: =item \@array
3780:
3781: A reference to the array containing text that will be wrapped in <li></li> tags.
3782:
3783: =item { listattr => {}, itemattr =>{} }
3784:
3785: Attributes for <ul> and <li> passed in as hash references.
3786: See htmltag() for more details.
3787:
3788: =back
3789:
3790: =back
3791:
3792: returns: XHTML list as String.
3793:
3794: =cut
3795:
3796: # \@items, {listattr => { class => 'abc', id => 'xyx' }, itemattr => {class => 'abc', id => 'xyx'}}
3797: sub list_from_array {
3798: my ($items, $args) = @_;
3799: return unless (ref($items) eq 'ARRAY');
3800: return unless scalar @$items;
3801: my ($ul, $li) = inittags( qw(ul li) );
3802: my $listitems = join '', map { $li->($_, $args->{itemattr}) } @$items;
3803: return $ul->( $listitems, $args->{listattr} );
3804: }
3805:
3806:
3807: ##############################################
3808: ##############################################
3809:
3810: # generate_menu
3811: #
3812: # Generates html markup for a menu.
3813: #
3814: # Inputs:
3815: # An array of following structure:
3816: # ({ categorytitle => 'Categorytitle',
3817: # items => [
3818: # {
3819: # linktext => 'Text to be displayed',
3820: # url => 'URL the link is pointing to, i.e. /adm/site?action=dosomething',
3821: # permission => 'Contains permissions as returned from lonnet::allowed(),
3822: # must evaluate to true in order to activate the link',
3823: # icon => 'icon filename',
3824: # alttext => 'alt text for the icon',
3825: # help => 'Name of the corresponding helpfile',
3826: # linktitle => 'Description of the link (used for title tag)'
3827: # },
3828: # ...
3829: # ]
3830: # },
3831: # ...
3832: # )
3833: #
3834: # Outputs: A scalar containing the html markup for the menu.
3835:
3836: sub generate_menu {
3837: my @menu = @_;
3838: # subs for specific html elements
3839: my ($h3, $div, $ul, $li, $a, $img) = inittags( qw(h3 div ul li a img) );
3840:
3841: my @categories; # each element represents the entire markup for a category
3842:
3843: foreach my $category (@menu) {
3844: my @links; # contains the links for the current $category
3845: foreach my $link (@{$$category{items}}) {
3846: next unless $$link{permission};
3847:
3848: # create the markup for the current $link and push it into @links.
3849: # each entry consists of an image and a text optionally followed
3850: # by a help link.
3851: my $src;
3852: if ($$link{icon} ne '') {
3853: $src = '/res/adm/pages/'.$$link{icon};
3854: }
3855: push(@links,$li->(
3856: $a->(
3857: $img->("", {
3858: class => "LC_noBorder LC_middle",
3859: src => $src,
3860: alt => mt(defined($$link{alttext}) ?
3861: $$link{alttext} : $$link{linktext})
3862: }), {
3863: href => $$link{url},
3864: title => mt($$link{linktitle}),
3865: class => 'LC_menubuttons_link'
3866: }).
3867: $a->(mt($$link{linktext}), {
3868: href => $$link{url},
3869: title => mt($$link{linktitle}),
3870: class => "LC_menubuttons_link"
3871: }).
3872: (defined($$link{help}) ?
3873: Apache::loncommon::help_open_topic($$link{help}) : ''),
3874: {class => "LC_menubuttons_inline_text"}));
3875: }
3876:
3877: # wrap categorytitle in <h3>, concatenate with
3878: # joined and in <ul> tags wrapped @links
3879: # and wrap everything in an enclosing <div> and push it into
3880: # @categories
3881: # such that each element looks like:
3882: # <div><h3>title</h3><ul><li>...</li>...</ul></div>
3883: # the category won't be added if there aren't any links
3884: push(@categories,
3885: $div->($h3->(mt($$category{categorytitle}), {class=>"LC_hcell"}).
3886: $ul->(join('' ,@links), {class =>"LC_ListStyleNormal" }),
3887: {class=>"LC_Box LC_400Box"})) if scalar(@links);
3888: }
3889:
3890: # wrap the joined @categories in another <div> (column layout)
3891: return $div->(join('', @categories), {class => "LC_columnSection"});
3892: }
3893:
3894: ##############################################
3895: ##############################################
3896:
3897: =pod
3898:
3899: =item &start_funclist()
3900:
3901: Start list of available functions
3902:
3903: Typically used to offer a simple list of available functions
3904: at top or bottom of page.
3905: All available functions/actions for the current page
3906: should be included in this list.
3907:
3908: If the optional headline text is not provided, a default text will be used.
3909:
3910: =over
3911:
3912: =item Related routines:
3913:
3914: =over 4
3915:
3916: =item add_item_funclist
3917:
3918: =item end_funclist
3919:
3920: =back
3921:
3922: =back
3923:
3924: Inputs: (optional) headline text
3925:
3926: Returns: HTML code with function list start
3927:
3928: =cut
3929:
3930: ##############################################
3931: ##############################################
3932:
3933: sub start_funclist {
3934: my($legendtext)=@_;
3935: $legendtext=&mt('Functions') if !$legendtext;
3936: return '<ul class="LC_funclist"><li style="font-weight:bold; margin-left:0.8em;">'.$legendtext.'</li>'."\n";
3937: }
3938:
3939:
3940: ##############################################
3941: ##############################################
3942:
3943: =pod
3944:
3945: =item &add_item_funclist()
3946:
3947: Adds an item to the list of available functions
3948:
3949: =over
3950:
3951: =item Related routines:
3952:
3953: =over 4
3954:
3955: =item start_funclist
3956:
3957: =item end_funclist
3958:
3959: =back
3960:
3961: =back
3962:
3963: Inputs: content item with text and link to function
3964:
3965: Returns: HTML code with list item for funclist
3966:
3967: =cut
3968:
3969: ##############################################
3970: ##############################################
3971:
3972: sub add_item_funclist {
3973: my($content) = @_;
3974: return '<li>'.$content.'</li>'."\n";
3975: }
3976:
3977: =pod
3978:
3979: =item &end_funclist()
3980:
3981: End list of available functions
3982:
3983: =over
3984:
3985: =item Related routines:
3986:
3987: start_funclist
3988: add_item_funclist
3989:
3990: =back
3991:
3992: Inputs: ./.
3993:
3994: Returns: HTML code with function list end
3995:
3996: =cut
3997:
3998: sub end_funclist {
3999: return "</ul>\n";
4000: }
4001:
4002: =pod
4003:
4004: =item &funclist_from_array( \@array, {legend => 'text for legend'} )
4005:
4006: Constructs a XHTML list from \@array with the first item being visually
4007: highlighted and set to the value of legend or 'Functions' if legend is
4008: empty.
4009:
4010: =over
4011:
4012: =item \@array
4013:
4014: A reference to the array containing text that will be wrapped in <li></li> tags.
4015:
4016: =item { legend => 'text' }
4017:
4018: A string that's used as visually highlighted first item. 'Functions' is used if
4019: it's value evaluates to false.
4020:
4021: =back
4022:
4023: returns: XHTML list as string.
4024:
4025: =back
4026:
4027: =cut
4028:
4029: sub funclist_from_array {
4030: my ($items, $args) = @_;
4031: return unless(ref($items) eq 'ARRAY');
4032: $args->{legend} ||= mt('Functions');
4033: return list_from_array( [$args->{legend}, @$items],
4034: { listattr => {class => 'LC_funclist'} });
4035: }
4036:
4037: =pod
4038:
4039: =over
4040:
4041: =item &actionbox( \@array )
4042:
4043: Constructs a XHTML list from \@array with the first item being visually
4044: highlighted and set to the value 'Actions'. The list is wrapped in a division.
4045:
4046: The actionlist is used to offer contextual actions, mostly at the bottom
4047: of a page, on which the outcome of an processed action is shown,
4048: e.g. a file operation in Authoring Space.
4049:
4050: =over
4051:
4052: =item \@array
4053:
4054: A reference to the array containing text. Details: sub funclist_from_array
4055:
4056: =back
4057:
4058: Returns: XHTML div as string.
4059:
4060: =back
4061:
4062: =cut
4063:
4064: sub actionbox {
4065: my ($items) = @_;
4066: return unless(ref($items) eq 'ARRAY');
4067: return
4068: '<div class="LC_actionbox">'
4069: .&funclist_from_array($items, {legend => &mt('Actions')})
4070: .'</div>';
4071: }
4072:
4073: 1;
4074:
4075: __END__
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