1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.170 2007/11/16 06:31:26 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ######################################################################
29: ######################################################################
30:
31: =pod
32:
33: =head1 NAME
34:
35: Apache::lonhtmlcommon - routines to do common html things
36:
37: =head1 SYNOPSIS
38:
39: Referenced by other mod_perl Apache modules.
40:
41: =head1 INTRODUCTION
42:
43: lonhtmlcommon is a collection of subroutines used to present information
44: in a consistent html format, or provide other functionality related to
45: html.
46:
47: =head2 General Subroutines
48:
49: =over 4
50:
51: =cut
52:
53: ######################################################################
54: ######################################################################
55:
56: package Apache::lonhtmlcommon;
57:
58: use strict;
59: use Time::Local;
60: use Time::HiRes;
61: use Apache::lonlocal;
62: use Apache::lonnet;
63: use LONCAPA;
64:
65: ##############################################
66: ##############################################
67:
68: =pod
69:
70: =item authorbombs
71:
72: =cut
73:
74: ##############################################
75: ##############################################
76:
77: sub authorbombs {
78: my $url=shift;
79: $url=&Apache::lonnet::declutter($url);
80: my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
81: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
82: foreach (keys %bombs) {
83: if ($_=~/^$udom\/$uname\//) {
84: return '<a href="/adm/bombs/'.$url.
85: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" border="0" /></a>'.
86: &Apache::loncommon::help_open_topic('About_Bombs');
87: }
88: }
89: return '';
90: }
91:
92: ##############################################
93: ##############################################
94:
95: sub recent_filename {
96: my $area=shift;
97: return 'nohist_recent_'.&escape($area);
98: }
99:
100: sub store_recent {
101: my ($area,$name,$value,$freeze)=@_;
102: my $file=&recent_filename($area);
103: my %recent=&Apache::lonnet::dump($file);
104: if (scalar(keys(%recent))>20) {
105: # remove oldest value
106: my $oldest=time();
107: my $delkey='';
108: foreach my $item (keys(%recent)) {
109: my $thistime=(split(/\&/,$recent{$item}))[0];
110: if (($thistime ne "always_include") && ($thistime<$oldest)) {
111: $oldest=$thistime;
112: $delkey=$item;
113: }
114: }
115: &Apache::lonnet::del($file,[$delkey]);
116: }
117: # store new value
118: my $timestamp;
119: if ($freeze) {
120: $timestamp = "always_include";
121: } else {
122: $timestamp = time();
123: }
124: &Apache::lonnet::put($file,{ $name =>
125: $timestamp.'&'.&escape($value) });
126: }
127:
128: sub remove_recent {
129: my ($area,$names)=@_;
130: my $file=&recent_filename($area);
131: return &Apache::lonnet::del($file,$names);
132: }
133:
134: sub select_recent {
135: my ($area,$fieldname,$event)=@_;
136: my %recent=&Apache::lonnet::dump(&recent_filename($area));
137: my $return="\n<select name='$fieldname'".
138: ($event?" onchange='$event'":'').
139: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
140: foreach my $value (sort(keys(%recent))) {
141: unless ($value =~/^error\:/) {
142: my $escaped = &Apache::loncommon::escape_url($value);
143: &Apache::loncommon::inhibit_menu_check(\$escaped);
144: $return.="\n<option value='$escaped'>".
145: &unescape((split(/\&/,$recent{$value}))[1]).
146: '</option>';
147: }
148: }
149: $return.="\n</select>\n";
150: return $return;
151: }
152:
153: sub get_recent {
154: my ($area, $n) = @_;
155: my %recent=&Apache::lonnet::dump(&recent_filename($area));
156:
157: # Create hash with key as time and recent as value
158: # Begin filling return_hash with any 'always_include' option
159: my %time_hash = ();
160: my %return_hash = ();
161: foreach my $item (keys %recent) {
162: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
163: if ($thistime eq 'always_include') {
164: $return_hash{$item} = &unescape($thisvalue);
165: $n--;
166: } else {
167: $time_hash{$thistime} = $item;
168: }
169: }
170:
171: # Sort by decreasing time and return key value pairs
172: my $idx = 1;
173: foreach my $item (reverse(sort(keys(%time_hash)))) {
174: $return_hash{$time_hash{$item}} =
175: &unescape((split(/\&/,$recent{$time_hash{$item}}))[1]);
176: if ($n && ($idx++ >= $n)) {last;}
177: }
178:
179: return %return_hash;
180: }
181:
182: sub get_recent_frozen {
183: my ($area) = @_;
184: my %recent=&Apache::lonnet::dump(&recent_filename($area));
185:
186: # Create hash with all 'frozen' items
187: my %return_hash = ();
188: foreach my $item (keys(%recent)) {
189: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
190: if ($thistime eq 'always_include') {
191: $return_hash{$item} = &unescape($thisvalue);
192: }
193: }
194: return %return_hash;
195: }
196:
197:
198:
199: =pod
200:
201: =item textbox
202:
203: =cut
204:
205: ##############################################
206: ##############################################
207: sub textbox {
208: my ($name,$value,$size,$special) = @_;
209: $size = 40 if (! defined($size));
210: $value = &HTML::Entities::encode($value,'<>&"');
211: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
212: 'value="'.$value.'" '.$special.' />';
213: return $Str;
214: }
215:
216: ##############################################
217: ##############################################
218:
219: =pod
220:
221: =item checkbox
222:
223: =cut
224:
225: ##############################################
226: ##############################################
227: sub checkbox {
228: my ($name,$checked,$value) = @_;
229: my $Str = '<input type="checkbox" name="'.$name.'" ';
230: if (defined($value)) {
231: $Str .= 'value="'.$value.'"';
232: }
233: if ($checked) {
234: $Str .= ' checked="1"';
235: }
236: $Str .= ' />';
237: return $Str;
238: }
239:
240:
241: =pod
242:
243: =item radiobutton
244:
245: =cut
246:
247: ##############################################
248: ##############################################
249: sub radio {
250: my ($name,$checked,$value) = @_;
251: my $Str = '<input type="radio" name="'.$name.'" ';
252: if (defined($value)) {
253: $Str .= 'value="'.$value.'"';
254: }
255: if ($checked eq $value) {
256: $Str .= ' checked="1"';
257: }
258: $Str .= ' />';
259: return $Str;
260: }
261:
262: ##############################################
263: ##############################################
264:
265: =pod
266:
267: =item &date_setter
268:
269: &date_setter returns html and javascript for a compact date-setting form.
270: To retrieve values from it, use &get_date_from_form().
271:
272: Inputs
273:
274: =over 4
275:
276: =item $dname
277:
278: The name to prepend to the form elements.
279: The form elements defined will be dname_year, dname_month, dname_day,
280: dname_hour, dname_min, and dname_sec.
281:
282: =item $currentvalue
283:
284: The current setting for this time parameter. A unix format time
285: (time in seconds since the beginning of Jan 1st, 1970, GMT.
286: An undefined value is taken to indicate the value is the current time.
287: Also, to be explicit, a value of 'now' also indicates the current time.
288:
289: =item $special
290:
291: Additional html/javascript to be associated with each element in
292: the date_setter. See lonparmset for example usage.
293:
294: =item $includeempty
295:
296: =item $state
297:
298: Specifies the initial state of the form elements. Either 'disabled' or empty.
299: Defaults to empty, which indiciates the form elements are not disabled.
300:
301: =back
302:
303: Bugs
304:
305: The method used to restrict user input will fail in the year 2400.
306:
307: =cut
308:
309: ##############################################
310: ##############################################
311: sub date_setter {
312: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
313: $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink) = @_;
314: my $wasdefined=1;
315: if (! defined($state) || $state ne 'disabled') {
316: $state = '';
317: }
318: if (! defined($no_hh_mm_ss)) {
319: $no_hh_mm_ss = 0;
320: }
321: if ($currentvalue eq 'now') {
322: $currentvalue=time;
323: }
324: if ((!defined($currentvalue)) || ($currentvalue eq '')) {
325: $wasdefined=0;
326: if ($includeempty) {
327: $currentvalue = 0;
328: } else {
329: $currentvalue = time;
330: }
331: }
332: # other potentially useful values: wkday,yrday,is_daylight_savings
333: my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
334: if ($currentvalue) {
335: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
336: localtime($currentvalue);
337: $year += 1900;
338: }
339: unless ($wasdefined) {
340: if (($defhour) || ($defmin) || ($defsec)) {
341: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
342: localtime(time);
343: $year += 1900;
344: $sec=($defsec?$defsec:0);
345: $min=($defmin?$defmin:0);
346: $hour=($defhour?$defhour:0);
347: } elsif (!$includeempty) {
348: $sec=0;
349: $min=0;
350: $hour=0;
351: }
352: }
353: my $result = "\n<!-- $dname date setting form -->\n";
354: $result .= <<ENDJS;
355: <script type="text/javascript">
356: function $dname\_checkday() {
357: var day = document.$formname.$dname\_day.value;
358: var month = document.$formname.$dname\_month.value;
359: var year = document.$formname.$dname\_year.value;
360: var valid = true;
361: if (day < 1) {
362: document.$formname.$dname\_day.value = 1;
363: }
364: if (day > 31) {
365: document.$formname.$dname\_day.value = 31;
366: }
367: if ((month == 1) || (month == 3) || (month == 5) ||
368: (month == 7) || (month == 8) || (month == 10) ||
369: (month == 12)) {
370: if (day > 31) {
371: document.$formname.$dname\_day.value = 31;
372: day = 31;
373: }
374: } else if (month == 2 ) {
375: if ((year % 4 == 0) && (year % 100 != 0)) {
376: if (day > 29) {
377: document.$formname.$dname\_day.value = 29;
378: }
379: } else if (day > 29) {
380: document.$formname.$dname\_day.value = 28;
381: }
382: } else if (day > 30) {
383: document.$formname.$dname\_day.value = 30;
384: }
385: }
386:
387: function $dname\_disable() {
388: document.$formname.$dname\_month.disabled=true;
389: document.$formname.$dname\_day.disabled=true;
390: document.$formname.$dname\_year.disabled=true;
391: document.$formname.$dname\_hour.disabled=true;
392: document.$formname.$dname\_minute.disabled=true;
393: document.$formname.$dname\_second.disabled=true;
394: }
395:
396: function $dname\_enable() {
397: document.$formname.$dname\_month.disabled=false;
398: document.$formname.$dname\_day.disabled=false;
399: document.$formname.$dname\_year.disabled=false;
400: document.$formname.$dname\_hour.disabled=false;
401: document.$formname.$dname\_minute.disabled=false;
402: document.$formname.$dname\_second.disabled=false;
403: }
404:
405: function $dname\_opencalendar() {
406: if (! document.$formname.$dname\_month.disabled) {
407: var calwin=window.open(
408: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
409: document.$formname.$dname\_month.value+"&year="+
410: document.$formname.$dname\_year.value,
411: "LONCAPAcal",
412: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
413: }
414:
415: }
416: </script>
417: ENDJS
418: $result .= ' <span style="white-space: nowrap;">';
419: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
420: # Month
421: my @Months = qw/January February March April May June
422: July August September October November December/;
423: # Pad @Months with a bogus value to make indexing easier
424: unshift(@Months,'If you can read this an error occurred');
425: if ($includeempty) { $monthselector.="<option value=''></option>"; }
426: for(my $m = 1;$m <=$#Months;$m++) {
427: $monthselector .= qq{ <option value="$m" };
428: $monthselector .= "selected " if ($m-1 eq $month);
429: $monthselector .= '> '.&mt($Months[$m]).' </option>';
430: }
431: $monthselector.= ' </select>';
432: # Day
433: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
434: # Year
435: my $yearselector = qq{<input type="year" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
436: #
437: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
438: if ($includeempty) {
439: $hourselector.=qq{<option value=''></option>};
440: }
441: for (my $h = 0;$h<24;$h++) {
442: $hourselector .= qq{<option value="$h" };
443: $hourselector .= "selected " if (defined($hour) && $hour == $h);
444: $hourselector .= ">";
445: my $timest='';
446: if ($h == 0) {
447: $timest .= "12 am";
448: } elsif($h == 12) {
449: $timest .= "12 noon";
450: } elsif($h < 12) {
451: $timest .= "$h am";
452: } else {
453: $timest .= $h-12 ." pm";
454: }
455: $timest=&mt($timest);
456: $hourselector .= $timest." </option>\n";
457: }
458: $hourselector .= " </select>\n";
459: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
460: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
461: my $cal_link;
462: if (!$nolink) {
463: $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
464: }
465: #
466: if ($no_hh_mm_ss) {
467: $result .= &mt('[_1] [_2] [_3] ',
468: $monthselector,$dayselector,$yearselector);
469: if (!$nolink) {
470: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
471: }
472: } else {
473: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
474: $monthselector,$dayselector,$yearselector,
475: $hourselector,$minuteselector,$secondselector);
476: if (!$nolink) {
477: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
478: }
479: }
480: $result .= "</span>\n<!-- end $dname date setting form -->\n";
481: return $result;
482: }
483:
484:
485: sub build_url {
486: my ($base, $fields)=@_;
487: my $url;
488: $url = $base.'?';
489: foreach my $key (keys(%$fields)) {
490: $url.=&escape($key).'='.&escape($$fields{$key}).'&';
491: }
492: $url =~ s/&$//;
493: return $url;
494: }
495:
496:
497: ##############################################
498: ##############################################
499:
500: =pod
501:
502: =item &get_date_from_form
503:
504: get_date_from_form retrieves the date specified in an &date_setter form.
505:
506: Inputs:
507:
508: =over 4
509:
510: =item $dname
511:
512: The name passed to &datesetter, which prefixes the form elements.
513:
514: =item $defaulttime
515:
516: The unix time to use as the default in case of poor inputs.
517:
518: =back
519:
520: Returns: Unix time represented in the form.
521:
522: =cut
523:
524: ##############################################
525: ##############################################
526: sub get_date_from_form {
527: my ($dname) = @_;
528: my ($sec,$min,$hour,$day,$month,$year);
529: #
530: if (defined($env{'form.'.$dname.'_second'})) {
531: my $tmpsec = $env{'form.'.$dname.'_second'};
532: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
533: $sec = $tmpsec;
534: }
535: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
536: } else {
537: $sec = 0;
538: }
539: if (defined($env{'form.'.$dname.'_minute'})) {
540: my $tmpmin = $env{'form.'.$dname.'_minute'};
541: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
542: $min = $tmpmin;
543: }
544: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
545: } else {
546: $min = 0;
547: }
548: if (defined($env{'form.'.$dname.'_hour'})) {
549: my $tmphour = $env{'form.'.$dname.'_hour'};
550: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
551: $hour = $tmphour;
552: }
553: } else {
554: $hour = 0;
555: }
556: if (defined($env{'form.'.$dname.'_day'})) {
557: my $tmpday = $env{'form.'.$dname.'_day'};
558: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
559: $day = $tmpday;
560: }
561: }
562: if (defined($env{'form.'.$dname.'_month'})) {
563: my $tmpmonth = $env{'form.'.$dname.'_month'};
564: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
565: $month = $tmpmonth - 1;
566: }
567: }
568: if (defined($env{'form.'.$dname.'_year'})) {
569: my $tmpyear = $env{'form.'.$dname.'_year'};
570: if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
571: $year = $tmpyear - 1900;
572: }
573: }
574: if (($year<70) || ($year>137)) { return undef; }
575: if (defined($sec) && defined($min) && defined($hour) &&
576: defined($day) && defined($month) && defined($year) &&
577: eval('&timelocal($sec,$min,$hour,$day,$month,$year)')) {
578: return &timelocal($sec,$min,$hour,$day,$month,$year);
579: } else {
580: return undef;
581: }
582: }
583:
584: ##############################################
585: ##############################################
586:
587: =pod
588:
589: =item &pjump_javascript_definition()
590:
591: Returns javascript defining the 'pjump' function, which opens up a
592: parameter setting wizard.
593:
594: =cut
595:
596: ##############################################
597: ##############################################
598: sub pjump_javascript_definition {
599: my $Str = <<END;
600: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
601: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
602: +"&value="+escape(value)+"&marker="+escape(marker)
603: +"&return="+escape(ret)
604: +"&call="+escape(call)+"&name="+escape(dis)
605: +"&defhour="+escape(hour)+"&defmin="+escape(min)
606: +"&defsec="+escape(sec),"LONCAPAparms",
607: "height=350,width=350,scrollbars=no,menubar=no");
608: }
609: END
610: return $Str;
611: }
612:
613: ##############################################
614: ##############################################
615:
616: =pod
617:
618: =item &javascript_nothing()
619:
620: Return an appropriate null for the users browser. This is used
621: as the first arguement for window.open calls when you want a blank
622: window that you can then write to.
623:
624: =cut
625:
626: ##############################################
627: ##############################################
628: sub javascript_nothing {
629: # mozilla and other browsers work with "''", but IE on mac does not.
630: my $nothing = "''";
631: my $user_browser;
632: my $user_os;
633: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
634: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
635: if (! defined($user_browser) || ! defined($user_os)) {
636: (undef,$user_browser,undef,undef,undef,$user_os) =
637: &Apache::loncommon::decode_user_agent();
638: }
639: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
640: $nothing = "'javascript:void(0);'";
641: }
642: return $nothing;
643: }
644:
645: ##############################################
646: ##############################################
647: sub javascript_docopen {
648: # safari does not understand document.open() and loads "text/html"
649: my $nothing = "''";
650: my $user_browser;
651: my $user_os;
652: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
653: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
654: if (! defined($user_browser) || ! defined($user_os)) {
655: (undef,$user_browser,undef,undef,undef,$user_os) =
656: &Apache::loncommon::decode_user_agent();
657: }
658: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
659: $nothing = "document.clear()";
660: } else {
661: $nothing = "document.open('text/html','replace')";
662: }
663: return $nothing;
664: }
665:
666:
667: ##############################################
668: ##############################################
669:
670: =pod
671:
672: =item &StatusOptions()
673:
674: Returns html for a selection box which allows the user to choose the
675: enrollment status of students. The selection box name is 'Status'.
676:
677: Inputs:
678:
679: $status: the currently selected status. If undefined the value of
680: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
681: is used.
682:
683: $formname: The name of the form. If defined the onchange attribute of
684: the selection box is set to document.$formname.submit().
685:
686: $size: the size (number of lines) of the selection box.
687:
688: $onchange: javascript to use when the value is changed. Enclosed in
689: double quotes, ""s, not single quotes.
690:
691: Returns: a perl string as described.
692:
693: =cut
694:
695: ##############################################
696: ##############################################
697: sub StatusOptions {
698: my ($status, $formName,$size,$onchange,$mult)=@_;
699: $size = 1 if (!defined($size));
700: if (! defined($status)) {
701: $status = 'Active';
702: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
703: }
704:
705: my $Str = '';
706: $Str .= '<select name="Status"';
707: if (defined($mult)){
708: $Str .= ' multiple="multiple" ';
709: }
710: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
711: $Str .= ' onchange="document.'.$formName.'.submit()"';
712: }
713: if (defined($onchange)) {
714: $Str .= ' onchange="'.$onchange.'"';
715: }
716: $Str .= ' size="'.$size.'" ';
717: $Str .= '>'."\n";
718: foreach my $type (['Active', &mt('Currently Has Access')],
719: ['Future', &mt('Will Have Future Access')],
720: ['Expired', &mt('Previously Had Access')],
721: ['Any', &mt('Any Access Status')]) {
722: my ($name,$label) = @$type;
723: $Str .= '<option value="'.$name.'" ';
724: if ($status eq $name) {
725: $Str .= 'selected="selected" ';
726: }
727: $Str .= '>'.$label.'</option>'."\n";
728: }
729:
730: $Str .= '</select>'."\n";
731: }
732:
733: ########################################################
734: ########################################################
735:
736: =pod
737:
738: =item Progess Window Handling Routines
739:
740: These routines handle the creation, update, increment, and closure of
741: progress windows. The progress window reports to the user the number
742: of items completed and an estimate of the time required to complete the rest.
743:
744: =over 4
745:
746:
747: =item &Create_PrgWin
748:
749: Writes javascript to the client to open a progress window and returns a
750: data structure used for bookkeeping.
751:
752: Inputs
753:
754: =over 4
755:
756: =item $r Apache request
757:
758: =item $title The title of the progress window
759:
760: =item $heading A description (usually 1 line) of the process being initiated.
761:
762: =item $number_to_do The total number of items being processed.
763:
764: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
765: specified)
766:
767: =item $width Specify the width in charaters of the input field.
768:
769: =item $formname Only useful in the inline case, if a form already exists, this needs to be used and specfiy the name of the form, otherwise the Progress line will be created in a new form of it's own
770:
771: =item $inputname Only useful in the inline case, if a form and an input of type text exists, use this to specify the name of the input field
772:
773: =back
774:
775: Returns a hash containing the progress state data structure.
776:
777:
778: =item &Update_PrgWin
779:
780: Updates the text in the progress indicator. Does not increment the count.
781: See &Increment_PrgWin.
782:
783: Inputs:
784:
785: =over 4
786:
787: =item $r Apache request
788:
789: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
790:
791: =item $displaystring The string to write to the status indicator
792:
793: =back
794:
795: Returns: none
796:
797:
798: =item Increment_PrgWin
799:
800: Increment the count of items completed for the progress window by 1.
801:
802: Inputs:
803:
804: =over 4
805:
806: =item $r Apache request
807:
808: =item $prog_state Pointer to the data structure returned by Create_PrgWin
809:
810: =item $extraInfo A description of the items being iterated over. Typically
811: 'student'.
812:
813: =back
814:
815: Returns: none
816:
817:
818: =item Close_PrgWin
819:
820: Closes the progress window.
821:
822: Inputs:
823:
824: =over 4
825:
826: =item $r Apache request
827:
828: =item $prog_state Pointer to the data structure returned by Create_PrgWin
829:
830: =back
831:
832: Returns: none
833:
834: =back
835:
836: =cut
837:
838: ########################################################
839: ########################################################
840:
841: my $uniq=0;
842: sub get_uniq_name {
843: $uniq++;
844: return 'uniquename'.$uniq;
845: }
846:
847: # Create progress
848: sub Create_PrgWin {
849: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
850: $inputname)=@_;
851: if (!defined($type)) { $type='popup'; }
852: if (!defined($width)) { $width=55; }
853: my %prog_state;
854: $prog_state{'type'}=$type;
855: if ($type eq 'popup') {
856: $prog_state{'window'}='popwin';
857: my $start_page =
858: &Apache::loncommon::start_page($title,undef,
859: {'only_body' => 1,
860: 'bgcolor' => '#88DDFF',
861: 'js_ready' => 1});
862: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
863:
864: #the whole function called through timeout is due to issues
865: #in mozilla Read BUG #2665 if you want to know the whole story
866: &r_print($r,'<script type="text/javascript">'.
867: "var popwin;
868: function openpopwin () {
869: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
870: "popwin.document.writeln(\'".$start_page.
871: "<h4>".&mt("$heading")."<\/h4>".
872: "<form action= \"\" name=\"popremain\" method=\"post\">".
873: '<input type="text" size="'.$width.'" name="remaining" value="'.
874: &mt('Starting').'" /><\\/form>'.$end_page.
875: "\');".
876: "popwin.document.close();}".
877: "\nwindow.setTimeout(openpopwin,0)</script>");
878: $prog_state{'formname'}='popremain';
879: $prog_state{'inputname'}="remaining";
880: } elsif ($type eq 'inline') {
881: $prog_state{'window'}='window';
882: if (!$formname) {
883: $prog_state{'formname'}=&get_uniq_name();
884: &r_print($r,'<form action="" name="'.$prog_state{'formname'}.'">');
885: } else {
886: $prog_state{'formname'}=$formname;
887: }
888: if (!$inputname) {
889: $prog_state{'inputname'}=&get_uniq_name();
890: &r_print($r,&mt("$heading [_1]",' <input type="text" name="'.$prog_state{'inputname'}.'" size="'.$width.'" />'));
891: } else {
892: $prog_state{'inputname'}=$inputname;
893:
894: }
895: if (!$formname) { &r_print($r,'</form>'); }
896: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
897: }
898:
899: $prog_state{'done'}=0;
900: $prog_state{'firststart'}=&Time::HiRes::time();
901: $prog_state{'laststart'}=&Time::HiRes::time();
902: $prog_state{'max'}=$number_to_do;
903:
904: return %prog_state;
905: }
906:
907: # update progress
908: sub Update_PrgWin {
909: my ($r,$prog_state,$displayString)=@_;
910: &r_print($r,'<script type="text/javascript">'.$$prog_state{'window'}.'.document.'.
911: $$prog_state{'formname'}.'.'.
912: $$prog_state{'inputname'}.'.value="'.
913: $displayString.'";</script>');
914: $$prog_state{'laststart'}=&Time::HiRes::time();
915: }
916:
917: # increment progress state
918: sub Increment_PrgWin {
919: my ($r,$prog_state,$extraInfo)=@_;
920: $$prog_state{'done'}++;
921: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
922: $$prog_state{'done'} *
923: ($$prog_state{'max'}-$$prog_state{'done'});
924: $time_est = int($time_est);
925: #
926: my $min = int($time_est/60);
927: my $sec = $time_est % 60;
928: #
929: my $str;
930: if ($min == 0 && $sec > 1) {
931: $str = '[_2] seconds';
932: } elsif ($min == 1 && $sec > 1) {
933: $str = '1 minute [_2] seconds';
934: } elsif ($min == 1 && $sec < 2) {
935: $str = '1 minute';
936: } elsif ($min < 10 && $sec > 1) {
937: $str = '[_1] minutes, [_2] seconds';
938: } elsif ($min >= 10 || $sec < 2) {
939: $str = '[_1] minutes';
940: }
941: $time_est = &mt($str,$min,$sec);
942: #
943: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
944: if ($lasttime > 9) {
945: $lasttime = int($lasttime);
946: } elsif ($lasttime < 0.01) {
947: $lasttime = 0;
948: } else {
949: $lasttime = sprintf("%3.2f",$lasttime);
950: }
951: if ($lasttime == 1) {
952: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
953: } else {
954: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
955: }
956: #
957: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
958: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
959: if (! defined($user_browser) || ! defined($user_os)) {
960: (undef,$user_browser,undef,undef,undef,$user_os) =
961: &Apache::loncommon::decode_user_agent();
962: }
963: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
964: $lasttime = '';
965: }
966: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
967: $$prog_state{'formname'}.'.'.
968: $$prog_state{'inputname'}.'.value="'.
969: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
970: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
971: $$prog_state{'laststart'}=&Time::HiRes::time();
972: }
973:
974: # close Progress Line
975: sub Close_PrgWin {
976: my ($r,$prog_state)=@_;
977: if ($$prog_state{'type'} eq 'popup') {
978: &r_print($r,'<script>popwin.close()</script>'."\n");
979: } elsif ($$prog_state{'type'} eq 'inline') {
980: &Update_PrgWin($r,$prog_state,&mt('Done'));
981: }
982: undef(%$prog_state);
983: }
984:
985: sub r_print {
986: my ($r,$to_print)=@_;
987: if ($r) {
988: $r->print($to_print);
989: $r->rflush();
990: } else {
991: print($to_print);
992: }
993: }
994:
995: # ------------------------------------------------------- Puts directory header
996:
997: sub crumbs {
998: my ($uri,$target,$prefix,$form,$size,$noformat,$skiplast)=@_;
999: if (! defined($size)) {
1000: $size = '+2';
1001: }
1002: if ($target) {
1003: $target = ' target="'.
1004: &Apache::loncommon::escape_single($target).'"';
1005: }
1006: my $output='';
1007: unless ($noformat) { $output.='<br /><tt><b>'; }
1008: $output.='<font size="'.$size.'">'.$prefix.'/';
1009: if ($env{'user.adv'}) {
1010: my $path=$prefix.'/';
1011: foreach my $dir (split('/',$uri)) {
1012: if (! $dir) { next; }
1013: $path .= $dir;
1014: if ($path eq $uri) {
1015: if ($skiplast) {
1016: $output.=$dir;
1017: last;
1018: }
1019: } else {
1020: $path.='/';
1021: }
1022: my $href_path = &HTML::Entities::encode($path,'<>&"');
1023: &Apache::loncommon::inhibit_menu_check(\$href_path);
1024: if ($form) {
1025: my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
1026: $output.=qq{<a href="$href" $target>$dir</a>/};
1027: } else {
1028: $output.=qq{<a href="$href_path" $target>$dir</a>/};
1029: }
1030: }
1031: } else {
1032: foreach my $dir (split('/',$uri)) {
1033: if (! $dir) { next; }
1034: $output.=$dir.'/';
1035: }
1036: }
1037: if ($uri !~ m|/$|) { $output=~s|/$||; }
1038: return $output.'</font>'.($noformat?'':'</b></tt><br />');
1039: }
1040:
1041: # --------------------- A function that generates a window for the spellchecker
1042:
1043: sub spellheader {
1044: my $start_page=
1045: &Apache::loncommon::start_page('Speller Suggestions',undef,
1046: {'only_body' => 1,
1047: 'js_ready' => 1,
1048: 'bgcolor' => '#DDDDDD',
1049: 'add_entries' => {
1050: 'onload' =>
1051: 'document.forms.spellcheckform.submit()',
1052: }
1053: });
1054: my $end_page=
1055: &Apache::loncommon::end_page({'js_ready' => 1});
1056:
1057: my $nothing=&javascript_nothing();
1058: return (<<ENDCHECK);
1059: <script type="text/javascript">
1060: //<!-- BEGIN LON-CAPA Internal
1061: var checkwin;
1062:
1063: function spellcheckerwindow(string) {
1064: var esc_string = string.replace(/\"/g,'"');
1065: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1066: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1067: checkwin.document.close();
1068: }
1069: // END LON-CAPA Internal -->
1070: </script>
1071: ENDCHECK
1072: }
1073:
1074: # ---------------------------------- Generate link to spell checker for a field
1075:
1076: sub spelllink {
1077: my ($form,$field)=@_;
1078: my $linktext=&mt('Check Spelling');
1079: return (<<ENDLINK);
1080: <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>
1081: ENDLINK
1082: }
1083:
1084: # ------------------------------------------------- Output headers for HTMLArea
1085:
1086: {
1087: my @htmlareafields;
1088: sub init_htmlareafields {
1089: undef(@htmlareafields);
1090: }
1091:
1092: sub add_htmlareafields {
1093: my (@newfields) = @_;
1094: push(@htmlareafields,@newfields);
1095: }
1096:
1097: sub get_htmlareafields {
1098: return @htmlareafields;
1099: }
1100: }
1101:
1102: sub htmlareaheaders {
1103: return if (&htmlareablocked());
1104: return if (!&htmlareabrowser());
1105: return (<<ENDHEADERS);
1106: <script type="text/javascript" src="/fckeditor/fckeditor.js"></script>
1107: ENDHEADERS
1108: }
1109:
1110: # ----------------------------------------------------------------- Preferences
1111:
1112: sub disablelink {
1113: my @fields=@_;
1114: if (defined($#fields)) {
1115: unless ($#fields>=0) { return ''; }
1116: }
1117: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1118: }
1119:
1120: sub enablelink {
1121: my @fields=@_;
1122: if (defined($#fields)) {
1123: unless ($#fields>=0) { return ''; }
1124: }
1125: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1126: }
1127:
1128: # ------------------------------------------------- lang to use in html editor
1129: sub htmlarea_lang {
1130: my $lang='en';
1131: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1132: $lang=&mt('htmlarea_lang');
1133: }
1134: return $lang;
1135: }
1136:
1137: # ----------------------------------------- Script to activate only some fields
1138:
1139: sub htmlareaselectactive {
1140: my @fields=@_;
1141: unless (&htmlareabrowser()) { return ''; }
1142: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1143: my $output='<script type="text/javascript" defer="1">';
1144: my $lang = &htmlarea_lang();
1145: foreach my $field (@fields) {
1146: $output.="
1147: {
1148: var oFCKeditor = new FCKeditor('$field');
1149: oFCKeditor.Config['CustomConfigurationsPath'] =
1150: '/fckeditor/loncapaconfig.js';
1151: oFCKeditor.ReplaceTextarea();
1152: oFCKeditor.Config['AutoDetectLanguage'] = false;
1153: oFCKeditor.Config['DefaultLanguage'] = '$lang';
1154: }";
1155: }
1156: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1157: &disablelink(@fields);
1158: return $output;
1159: }
1160:
1161: # --------------------------------------------------------------------- Blocked
1162:
1163: sub htmlareablocked {
1164: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1165: return 0;
1166: }
1167:
1168: # ---------------------------------------- Browser capable of running HTMLArea?
1169:
1170: sub htmlareabrowser {
1171: return 1;
1172: }
1173:
1174: ############################################################
1175: ############################################################
1176:
1177: =pod
1178:
1179: =item breadcrumbs
1180:
1181: Compiles the previously registered breadcrumbs into an series of links.
1182: FAQ and BUG links will be placed on the left side of the table if they
1183: are defined for the last registered breadcrumb.
1184: Additionally supports a 'component', which will be displayed on the
1185: right side of the table (without a link).
1186: A link to help for the component will be included if one is specified.
1187:
1188: All inputs can be undef without problems.
1189:
1190: Inputs: $component (the large text on the right side of the table),
1191: $component_help
1192: $menulink (boolean, controls whether to include a link to /adm/menu)
1193: $helplink (if 'nohelp' don't include the orange help link)
1194: $css_class (optional name for the class to apply to the table for CSS)
1195: Returns a string containing breadcrumbs for the current page.
1196:
1197: =item clear_breadcrumbs
1198:
1199: Clears the previously stored breadcrumbs.
1200:
1201: =item add_breadcrumb
1202:
1203: Pushes a breadcrumb on the stack of crumbs.
1204:
1205: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1206: are required. If present the keys 'faq' and 'bug' will be used to provide
1207: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title'
1208: and 'text' values won't be sent through &mt()
1209:
1210: returns: nothing
1211:
1212: =cut
1213:
1214: ############################################################
1215: ############################################################
1216: {
1217: my @Crumbs;
1218:
1219: sub breadcrumbs {
1220: my ($component,$component_help,$menulink,$helplink,$css_class) = @_;
1221: #
1222: $css_class ||= 'LC_breadcrumbs';
1223: my $Str = "\n".'<table class="'.$css_class.'"><tr><td>';
1224: #
1225: # Make the faq and bug data cascade
1226: my $faq = '';
1227: my $bug = '';
1228: my $help='';
1229: # The last breadcrumb does not have a link, so handle it separately.
1230: my $last = pop(@Crumbs);
1231: #
1232: # The first one should be the course or a menu link
1233: if (!defined($menulink)) { $menulink=1; }
1234: if ($menulink) {
1235: my $description = 'Menu';
1236: if (exists($env{'request.course.id'}) &&
1237: $env{'request.course.id'} ne '') {
1238: $description =
1239: $env{'course.'.$env{'request.course.id'}.'.description'};
1240: }
1241: unshift(@Crumbs,{
1242: href =>'/adm/menu',
1243: title =>'Go to main menu',
1244: target =>'_top',
1245: text =>$description,
1246: });
1247: }
1248: my $links .=
1249: join('->',
1250: map {
1251: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1252: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1253: $help = $_->{'help'} if (exists($_->{'help'}));
1254: my $result = '<a href="'.$_->{'href'}.'" ';
1255: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1256: $result .= 'target="'.$_->{'target'}.'" ';
1257: }
1258: if ($_->{'no_mt'}) {
1259: $result .='title="'.$_->{'title'}.'">'.
1260: $_->{'text'}.'</a>';
1261: } else {
1262: $result .='title="'.&mt($_->{'title'}).'">'.
1263: &mt($_->{'text'}).'</a>';
1264: }
1265: $result;
1266: } @Crumbs
1267: );
1268: $links .= '->' if ($links ne '');
1269: if ($last->{'no_mt'}) {
1270: $links .= '<b>'.$last->{'text'}.'</b>';
1271: } else {
1272: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1273: }
1274: #
1275: my $icons = '';
1276: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1277: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1278: $help = $last->{'help'} if (exists($last->{'help'}));
1279: $component_help=($component_help?$component_help:$help);
1280: # if ($faq ne '') {
1281: # $icons .= &Apache::loncommon::help_open_faq($faq);
1282: # }
1283: # if ($bug ne '') {
1284: # $icons .= &Apache::loncommon::help_open_bug($bug);
1285: # }
1286: if ($faq ne '' || $component_help ne '' || $bug ne '') {
1287: $icons .= &Apache::loncommon::help_open_menu($component,
1288: $component_help,
1289: $faq,$bug);
1290: }
1291: #
1292: $Str .= $links.'</td>';
1293: #
1294: if (defined($component)) {
1295: $Str .= '<td class="'.$css_class.'_component">'.
1296: &mt($component);
1297: if ($icons ne '') {
1298: $Str .= ' '.$icons;
1299: }
1300: $Str .= '</td>';
1301: }
1302: $Str .= '</tr></table>'."\n";
1303: #
1304: # Return the @Crumbs stack to what we started with
1305: push(@Crumbs,$last);
1306: shift(@Crumbs);
1307: #
1308: return $Str;
1309: }
1310:
1311: sub clear_breadcrumbs {
1312: undef(@Crumbs);
1313: }
1314:
1315: sub add_breadcrumb {
1316: push (@Crumbs,@_);
1317: }
1318:
1319: } # End of scope for @Crumbs
1320:
1321: ############################################################
1322: ############################################################
1323:
1324: # Nested table routines.
1325: #
1326: # Routines to display form items in a multi-row table with 2 columns.
1327: # Uses nested tables to divide form elements into segments.
1328: # For examples of use see loncom/interface/lonnotify.pm
1329: #
1330: # Can be used in following order: ...
1331: # &start_pick_box()
1332: # row1
1333: # row2
1334: # row3 ... etc.
1335: # &submit_row(0
1336: # &end_pick_box()
1337: #
1338: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1339: # &status_select_row and &email_default_row
1340: #
1341: # Can also be used in following order:
1342: #
1343: # &start_pick_box()
1344: # &row_title()
1345: # &row_closure()
1346: # &row_title()
1347: # &row_closure() ... etc.
1348: # &submit_row()
1349: # &end_pick_box()
1350: #
1351: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1352: # as this routine adds a button for form submission.
1353: # &submit_row() does not require a &row_closure after it.
1354: #
1355: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1356: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1357: #
1358: # &row_title() adds a title in the left column for each segment.
1359: # &row_closure() closes a row with a 1-pixel wide black line.
1360: #
1361: # &role_select_row() provides a select box from which to choose 1 or more roles
1362: # &course_select_row provides ways of picking groups of courses
1363: # radio buttons: all, by category or by picking from a course picker pop-up
1364: # note: by category option is only displayed if a domain has implemented
1365: # selection by year, semester, department, number etc.
1366: #
1367: # &status_select_row() provides a select box from which to choose 1 or more
1368: # access types (current access, prior access, and future access)
1369: #
1370: # &email_default_row() provides text boxes for default e-mail suffixes for
1371: # different authentication types in a domain.
1372: #
1373: # &row_title() and &row_closure() are called internally by the &*_select_row
1374: # routines, but can also be called directly to start and end rows which have
1375: # needs that are not accommodated by the *_select_row() routines.
1376:
1377: sub start_pick_box {
1378: my ($css_class) = @_;
1379: if (defined($css_class)) {
1380: $css_class = 'class="'.$css_class.'"';
1381: } else {
1382: $css_class= 'class="LC_pick_box"';
1383: }
1384: my $output = <<"END";
1385: <table $css_class>
1386: END
1387: return $output;
1388: }
1389:
1390: sub end_pick_box {
1391: my $output = <<"END";
1392: </table>
1393: END
1394: return $output;
1395: }
1396:
1397: sub row_title {
1398: my ($title,$css_title_class,$css_value_class) = @_;
1399: $css_title_class ||= 'LC_pick_box_title';
1400: $css_title_class = 'class="'.$css_title_class.'"';
1401:
1402: $css_value_class ||= 'LC_pick_box_value';
1403: $css_value_class = 'class="'.$css_value_class.'"';
1404:
1405: my $output = <<"ENDONE";
1406: <tr class="LC_pick_box_row">
1407: <td $css_title_class>
1408: $title:
1409: </td>
1410: <td $css_value_class>
1411: ENDONE
1412: return $output;
1413: }
1414:
1415: sub row_closure {
1416: my ($no_separator) =@_;
1417: my $output = <<"ENDTWO";
1418: </td>
1419: </tr>
1420: ENDTWO
1421: if (!$no_separator) {
1422: $output .= <<"ENDTWO";
1423: <tr>
1424: <td colspan="2" class="LC_pick_box_separator">
1425: </td>
1426: </tr>
1427: ENDTWO
1428: }
1429: return $output;
1430: }
1431:
1432: sub role_select_row {
1433: my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
1434: my $output;
1435: if (defined($title)) {
1436: $output = &row_title($title,$css_class);
1437: }
1438: $output .= qq|
1439: <select name="roles" multiple >\n|;
1440: foreach my $role (@$roles) {
1441: my $plrole;
1442: if ($role eq 'ow') {
1443: $plrole = &mt('Course Owner');
1444: } elsif ($role eq 'cr') {
1445: if ($show_separate_custom) {
1446: if ($cdom ne '' && $cnum ne '') {
1447: my %course_customroles = &course_custom_roles($cdom,$cnum);
1448: foreach my $crrole (sort(keys(%course_customroles))) {
1449: my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
1450: $output .= ' <option value="'.$crrole.'">'.$plcrrole.
1451: '</option>';
1452: }
1453: }
1454: } else {
1455: $plrole = &mt('Custom Role');
1456: }
1457: } else {
1458: $plrole=&Apache::lonnet::plaintext($role);
1459: }
1460: if (($role ne 'cr') || (!$show_separate_custom)) {
1461: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1462: }
1463: }
1464: $output .= qq| </select>\n|;
1465: if (defined($title)) {
1466: $output .= &row_closure();
1467: }
1468: return $output;
1469: }
1470:
1471: sub course_select_row {
1472: my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
1473: $css_class) = @_;
1474: my $output = &row_title($title,$css_class);
1475: $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles);
1476: $output .= &row_closure();
1477: return $output;
1478: }
1479:
1480: sub course_selection {
1481: my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1482: my $output = qq|
1483: <script type="text/javascript">
1484: function coursePick (formname) {
1485: for (var i=0; i<formname.coursepick.length; i++) {
1486: if (formname.coursepick[i].value == 'category') {
1487: courseSet('');
1488: }
1489: if (!formname.coursepick[i].checked) {
1490: if (formname.coursepick[i].value == 'specific') {
1491: formname.coursetotal.value = 0;
1492: formname.courselist = '';
1493: }
1494: }
1495: }
1496: }
1497: function setPick (formname) {
1498: for (var i=0; i<formname.coursepick.length; i++) {
1499: if (formname.coursepick[i].value == 'category') {
1500: formname.coursepick[i].checked = true;
1501: }
1502: formname.coursetotal.value = 0;
1503: formname.courselist = '';
1504: }
1505: }
1506: </script>
1507: |;
1508: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1509: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1510: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses').'<br />';
1511: if ($totcodes > 0) {
1512: my $numtitles = @$codetitles;
1513: if ($numtitles > 0) {
1514: $output .= '<input type="radio" name="coursepick" value="category" onclick="coursePick(this.form);alert('."'".&mt('Choose categories, from left to right')."'".')" />'.&mt('Pick courses by category:').' <br />';
1515: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1516: '<select name="'.$$codetitles[0].
1517: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1518: ' <option value="-1" />Select'."\n";
1519: my @items = ();
1520: my @longitems = ();
1521: if ($$idlist{$$codetitles[0]} =~ /","/) {
1522: @items = split(/","/,$$idlist{$$codetitles[0]});
1523: } else {
1524: $items[0] = $$idlist{$$codetitles[0]};
1525: }
1526: if (defined($$idlist_titles{$$codetitles[0]})) {
1527: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1528: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1529: } else {
1530: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1531: }
1532: for (my $i=0; $i<@longitems; $i++) {
1533: if ($longitems[$i] eq '') {
1534: $longitems[$i] = $items[$i];
1535: }
1536: }
1537: } else {
1538: @longitems = @items;
1539: }
1540: for (my $i=0; $i<@items; $i++) {
1541: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1542: }
1543: $output .= '</select></td>';
1544: for (my $i=1; $i<$numtitles; $i++) {
1545: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1546: '<select name="'.$$codetitles[$i].
1547: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1548: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1549: '</select>'."\n".
1550: '</td>';
1551: }
1552: $output .= '</tr></table><br />';
1553: }
1554: }
1555: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."','dccourse','dcdomain','coursedesc','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br />'."\n";
1556: return $output;
1557: }
1558:
1559: sub status_select_row {
1560: my ($types,$title,$css_class) = @_;
1561: my $output;
1562: if (defined($title)) {
1563: $output = &row_title($title,$css_class,'LC_pick_box_select');
1564: }
1565: $output .= qq|
1566: <select name="types" multiple>\n|;
1567: foreach my $status_type (sort(keys(%{$types}))) {
1568: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1569: }
1570: $output .= qq| </select>\n|;
1571: if (defined($title)) {
1572: $output .= &row_closure();
1573: }
1574: return $output;
1575: }
1576:
1577: sub email_default_row {
1578: my ($authtypes,$title,$descrip,$css_class) = @_;
1579: my $output = &row_title($title,$css_class);
1580: $output .= $descrip.
1581: &Apache::loncommon::start_data_table().
1582: &Apache::loncommon::start_data_table_header_row().
1583: '<th>'.&mt('Authentication Method').'</th>'.
1584: '<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
1585: &Apache::loncommon::end_data_table_header_row();
1586: my $rownum = 0;
1587: foreach my $auth (sort(keys(%{$authtypes}))) {
1588: my ($userentry,$size);
1589: if ($auth =~ /^krb/) {
1590: $userentry = '';
1591: $size = 25;
1592: } else {
1593: $userentry = 'username@';
1594: $size = 15;
1595: }
1596: $output .= &Apache::loncommon::start_data_table_row().
1597: '<td> '.$$authtypes{$auth}.'</td>'.
1598: '<td align="right">'.$userentry.
1599: '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
1600: &Apache::loncommon::end_data_table_row();
1601: }
1602: $output .= &Apache::loncommon::end_data_table();
1603: $output .= &row_closure();
1604: return $output;
1605: }
1606:
1607:
1608: sub submit_row {
1609: my ($title,$cmd,$submit_text,$css_class) = @_;
1610: my $output = &row_title($title,$css_class,'LC_pick_box_submit');
1611: $output .= qq|
1612: <br />
1613: <input type="hidden" name="command" value="$cmd" />
1614: <input type="submit" value="$submit_text"/>
1615: <br /><br />
1616: \n|;
1617: return $output;
1618: }
1619:
1620: sub course_custom_roles {
1621: my ($cdom,$cnum) = @_;
1622: my %returnhash=();
1623: my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
1624: foreach my $person (sort(keys(%coursepersonnel))) {
1625: my ($role) = ($person =~ /^([^:]+):/);
1626: my ($end,$start) = split(/:/,$coursepersonnel{$person});
1627: if ($end == -1 && $start == -1) {
1628: next;
1629: }
1630: if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
1631: $returnhash{$role} ++;
1632: }
1633: }
1634: return %returnhash;
1635: }
1636:
1637:
1638: ##############################################
1639: ##############################################
1640:
1641: # echo_form_input
1642: #
1643: # Generates html markup to add form elements from the referrer page
1644: # as hidden form elements (values encoded) in the new page.
1645: #
1646: # Intended to support two types of use
1647: # (a) to allow backing up to earlier pages in a multi-page
1648: # form submission process using a breadcrumb trail.
1649: #
1650: # (b) to allow the current page to be reloaded with form elements
1651: # set on previous page to remain unchanged. An example would
1652: # be where the a page containing a dynamically-built table of data is
1653: # is to be redisplayed, with only the sort order of the data changed.
1654: #
1655: # Inputs:
1656: # 1. Reference to array of form elements in the submitted form on
1657: # the referrer page which are to be excluded from the echoed elements.
1658: #
1659: # 2. Reference to array of regular expressions, which if matched in the
1660: # name of the form element n the referrer page will be omitted from echo.
1661: #
1662: # Outputs: A scalar containing the html markup for the echoed form
1663: # elements (all as hidden elements, with values encoded).
1664:
1665:
1666: sub echo_form_input {
1667: my ($excluded,$regexps) = @_;
1668: my $output = '';
1669: foreach my $key (keys(%env)) {
1670: if ($key =~ /^form\.(.+)$/) {
1671: my $name = $1;
1672: my $match = 0;
1673: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1674: if (defined($regexps)) {
1675: if (@{$regexps} > 0) {
1676: foreach my $regexp (@{$regexps}) {
1677: if ($name =~ /\Q$regexp\E/) {
1678: $match = 1;
1679: last;
1680: }
1681: }
1682: }
1683: }
1684: if (!$match) {
1685: if (ref($env{$key})) {
1686: foreach my $value (@{$env{$key}}) {
1687: $value = &HTML::Entities::encode($value,'<>&"');
1688: $output .= '<input type="hidden" name="'.$name.
1689: '" value="'.$value.'" />'."\n";
1690: }
1691: } else {
1692: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1693: $output .= '<input type="hidden" name="'.$name.
1694: '" value="'.$value.'" />'."\n";
1695: }
1696: }
1697: }
1698: }
1699: }
1700: return $output;
1701: }
1702:
1703: ##############################################
1704: ##############################################
1705:
1706: # set_form_elements
1707: #
1708: # Generates javascript to set form elements to values based on
1709: # corresponding values for the same form elements when the page was
1710: # previously submitted.
1711: #
1712: # Last submission values are read from hidden form elements in referring
1713: # page which have the same name, i.e., generated by &echo_form_input().
1714: #
1715: # Intended to be called by onload event.
1716: #
1717: # Inputs:
1718: # (a) Reference to hash of echoed form elements to be set.
1719: #
1720: # In the hash, keys are the form element names, and the values are the
1721: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1722: # hidden).
1723: #
1724: # (b) Optional reference to hash of stored elements to be set.
1725: #
1726: # If the page being displayed is a page which permits modification of
1727: # previously stored data, e.g., the first page in a multi-page submission,
1728: # then if stored is supplied, form elements will be set to the last stored
1729: # values. If user supplied values are also available for the same elements
1730: # these will replace the stored values.
1731: #
1732: # Output:
1733: #
1734: # javascript function - set_form_elements() which sets form elements,
1735: # expects an argument: formname - the name of the form according to
1736: # the DOM, e.g., document.compose
1737:
1738: sub set_form_elements {
1739: my ($elements,$stored) = @_;
1740: my %values;
1741: my $output .= 'function setFormElements(courseForm) {
1742: ';
1743: if (defined($stored)) {
1744: foreach my $name (keys(%{$stored})) {
1745: if (exists($$elements{$name})) {
1746: if (ref($$stored{$name}) eq 'ARRAY') {
1747: $values{$name} = $$stored{$name};
1748: } else {
1749: @{$values{$name}} = ($$stored{$name});
1750: }
1751: }
1752: }
1753: }
1754:
1755: foreach my $key (keys(%env)) {
1756: if ($key =~ /^form\.(.+)$/) {
1757: my $name = $1;
1758: if (exists($$elements{$name})) {
1759: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1760: }
1761: }
1762: }
1763:
1764: foreach my $name (keys(%values)) {
1765: for (my $i=0; $i<@{$values{$name}}; $i++) {
1766: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1767: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1768: $values{$name}[$i] =~ s/"/\\"/g;
1769: }
1770: if ($$elements{$name} eq 'text') {
1771: my $numvalues = @{$values{$name}};
1772: if ($numvalues > 1) {
1773: my $valuestring = join('","',@{$values{$name}});
1774: $output .= qq|
1775: var textvalues = new Array ("$valuestring");
1776: var total = courseForm.elements['$name'].length;
1777: if (total > $numvalues) {
1778: total = $numvalues;
1779: }
1780: for (var i=0; i<total; i++) {
1781: courseForm.elements['$name']\[i].value = textvalues[i];
1782: }
1783: |;
1784: } else {
1785: $output .= qq|
1786: courseForm.elements['$name'].value = "$values{$name}[0]";
1787: |;
1788: }
1789: } else {
1790: $output .= qq|
1791: var elementLength = courseForm.elements['$name'].length;
1792: if (elementLength==undefined) {
1793: |;
1794: foreach my $value (@{$values{$name}}) {
1795: if ($$elements{$name} eq 'selectbox') {
1796: $output .= qq|
1797: if (courseForm.elements['$name'].options[0].value == "$value") {
1798: courseForm.elements['$name'].options[0].selected = true;
1799: }|;
1800: } elsif (($$elements{$name} eq 'radio') ||
1801: ($$elements{$name} eq 'checkbox')) {
1802: $output .= qq|
1803: if (courseForm.elements['$name'].value == "$value") {
1804: courseForm.elements['$name'].checked = true;
1805: }|;
1806: }
1807: }
1808: $output .= qq|
1809: }
1810: else {
1811: for (var i=0; i<courseForm.elements['$name'].length; i++) {
1812: |;
1813: if ($$elements{$name} eq 'selectbox') {
1814: $output .= qq|
1815: courseForm.elements['$name'].options[i].selected = false;|;
1816: } elsif (($$elements{$name} eq 'radio') ||
1817: ($$elements{$name} eq 'checkbox')) {
1818: $output .= qq|
1819: courseForm.elements['$name']\[i].checked = false;|;
1820: }
1821: $output .= qq|
1822: }
1823: for (var j=0; j<courseForm.elements['$name'].length; j++) {
1824: |;
1825: foreach my $value (@{$values{$name}}) {
1826: if ($$elements{$name} eq 'selectbox') {
1827: $output .= qq|
1828: if (courseForm.elements['$name'].options[j].value == "$value") {
1829: courseForm.elements['$name'].options[j].selected = true;
1830: }|;
1831: } elsif (($$elements{$name} eq 'radio') ||
1832: ($$elements{$name} eq 'checkbox')) {
1833: $output .= qq|
1834: if (courseForm.elements['$name']\[j].value == "$value") {
1835: courseForm.elements['$name']\[j].checked = true;
1836: }|;
1837: }
1838: }
1839: $output .= qq|
1840: }
1841: }
1842: |;
1843: }
1844: }
1845: $output .= "
1846: }\n";
1847: return $output;
1848: }
1849:
1850: ##############################################
1851: ##############################################
1852:
1853: # javascript_valid_email
1854: #
1855: # Generates javascript to validate an e-mail address.
1856: # Returns a javascript function which accetps a form field as argumnent, and
1857: # returns false if field.value does not satisfy two regular expression matches
1858: # for a valid e-mail address. Backwards compatible with old browsers without
1859: # support for javascript RegExp (just checks for @ in field.value in this case).
1860:
1861: sub javascript_valid_email {
1862: my $scripttag .= <<'END';
1863: function validmail(field) {
1864: var str = field.value;
1865: if (window.RegExp) {
1866: var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
1867: var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
1868: var reg1 = new RegExp(reg1str);
1869: var reg2 = new RegExp(reg2str);
1870: if (!reg1.test(str) && reg2.test(str)) {
1871: return true;
1872: }
1873: return false;
1874: }
1875: else
1876: {
1877: if(str.indexOf("@") >= 0) {
1878: return true;
1879: }
1880: return false;
1881: }
1882: }
1883: END
1884: return $scripttag;
1885: }
1886:
1887: 1;
1888:
1889: __END__
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