1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.154 2006/11/09 20:43:07 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 lib '/home/httpd/lib/perl/';
64: use LONCAPA;
65:
66: ##############################################
67: ##############################################
68:
69: =pod
70:
71: =item authorbombs
72:
73: =cut
74:
75: ##############################################
76: ##############################################
77:
78: sub authorbombs {
79: my $url=shift;
80: $url=&Apache::lonnet::declutter($url);
81: my ($udom,$uname)=($url=~/^(\w+)\/(\w+)\//);
82: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
83: foreach (keys %bombs) {
84: if ($_=~/^$udom\/$uname\//) {
85: return '<a href="/adm/bombs/'.$url.
86: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" border="0" /></a>'.
87: &Apache::loncommon::help_open_topic('About_Bombs');
88: }
89: }
90: return '';
91: }
92:
93: ##############################################
94: ##############################################
95:
96: sub recent_filename {
97: my $area=shift;
98: return 'nohist_recent_'.&escape($area);
99: }
100:
101: sub store_recent {
102: my ($area,$name,$value,$freeze)=@_;
103: my $file=&recent_filename($area);
104: my %recent=&Apache::lonnet::dump($file);
105: if (scalar(keys(%recent))>20) {
106: # remove oldest value
107: my $oldest=time();
108: my $delkey='';
109: foreach my $item (keys(%recent)) {
110: my $thistime=(split(/\&/,$recent{$item}))[0];
111: if (($thistime ne "always_include") && ($thistime<$oldest)) {
112: $oldest=$thistime;
113: $delkey=$item;
114: }
115: }
116: &Apache::lonnet::del($file,[$delkey]);
117: }
118: # store new value
119: my $timestamp;
120: if ($freeze) {
121: $timestamp = "always_include";
122: } else {
123: $timestamp = time();
124: }
125: &Apache::lonnet::put($file,{ $name =>
126: $timestamp.'&'.&escape($value) });
127: }
128:
129: sub remove_recent {
130: my ($area,$names)=@_;
131: my $file=&recent_filename($area);
132: return &Apache::lonnet::del($file,$names);
133: }
134:
135: sub select_recent {
136: my ($area,$fieldname,$event)=@_;
137: my %recent=&Apache::lonnet::dump(&recent_filename($area));
138: my $return="\n<select name='$fieldname'".
139: ($event?" onchange='$event'":'').
140: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
141: foreach my $value (sort(keys(%recent))) {
142: unless ($value =~/^error\:/) {
143: my $escaped = &Apache::loncommon::escape_url($value);
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: ##############################################
486:
487: =pod
488:
489: =item &get_date_from_form
490:
491: get_date_from_form retrieves the date specified in an &date_setter form.
492:
493: Inputs:
494:
495: =over 4
496:
497: =item $dname
498:
499: The name passed to &datesetter, which prefixes the form elements.
500:
501: =item $defaulttime
502:
503: The unix time to use as the default in case of poor inputs.
504:
505: =back
506:
507: Returns: Unix time represented in the form.
508:
509: =cut
510:
511: ##############################################
512: ##############################################
513: sub get_date_from_form {
514: my ($dname) = @_;
515: my ($sec,$min,$hour,$day,$month,$year);
516: #
517: if (defined($env{'form.'.$dname.'_second'})) {
518: my $tmpsec = $env{'form.'.$dname.'_second'};
519: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
520: $sec = $tmpsec;
521: }
522: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
523: } else {
524: $sec = 0;
525: }
526: if (defined($env{'form.'.$dname.'_minute'})) {
527: my $tmpmin = $env{'form.'.$dname.'_minute'};
528: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
529: $min = $tmpmin;
530: }
531: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
532: } else {
533: $min = 0;
534: }
535: if (defined($env{'form.'.$dname.'_hour'})) {
536: my $tmphour = $env{'form.'.$dname.'_hour'};
537: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
538: $hour = $tmphour;
539: }
540: } else {
541: $hour = 0;
542: }
543: if (defined($env{'form.'.$dname.'_day'})) {
544: my $tmpday = $env{'form.'.$dname.'_day'};
545: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
546: $day = $tmpday;
547: }
548: }
549: if (defined($env{'form.'.$dname.'_month'})) {
550: my $tmpmonth = $env{'form.'.$dname.'_month'};
551: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
552: $month = $tmpmonth - 1;
553: }
554: }
555: if (defined($env{'form.'.$dname.'_year'})) {
556: my $tmpyear = $env{'form.'.$dname.'_year'};
557: if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
558: $year = $tmpyear - 1900;
559: }
560: }
561: if (($year<70) || ($year>137)) { return undef; }
562: if (defined($sec) && defined($min) && defined($hour) &&
563: defined($day) && defined($month) && defined($year) &&
564: eval('&timelocal($sec,$min,$hour,$day,$month,$year)')) {
565: return &timelocal($sec,$min,$hour,$day,$month,$year);
566: } else {
567: return undef;
568: }
569: }
570:
571: ##############################################
572: ##############################################
573:
574: =pod
575:
576: =item &pjump_javascript_definition()
577:
578: Returns javascript defining the 'pjump' function, which opens up a
579: parameter setting wizard.
580:
581: =cut
582:
583: ##############################################
584: ##############################################
585: sub pjump_javascript_definition {
586: my $Str = <<END;
587: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
588: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
589: +"&value="+escape(value)+"&marker="+escape(marker)
590: +"&return="+escape(ret)
591: +"&call="+escape(call)+"&name="+escape(dis)
592: +"&defhour="+escape(hour)+"&defmin="+escape(min)
593: +"&defsec="+escape(sec),"LONCAPAparms",
594: "height=350,width=350,scrollbars=no,menubar=no");
595: }
596: END
597: return $Str;
598: }
599:
600: ##############################################
601: ##############################################
602:
603: =pod
604:
605: =item &javascript_nothing()
606:
607: Return an appropriate null for the users browser. This is used
608: as the first arguement for window.open calls when you want a blank
609: window that you can then write to.
610:
611: =cut
612:
613: ##############################################
614: ##############################################
615: sub javascript_nothing {
616: # mozilla and other browsers work with "''", but IE on mac does not.
617: my $nothing = "''";
618: my $user_browser;
619: my $user_os;
620: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
621: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
622: if (! defined($user_browser) || ! defined($user_os)) {
623: (undef,$user_browser,undef,undef,undef,$user_os) =
624: &Apache::loncommon::decode_user_agent();
625: }
626: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
627: $nothing = "'javascript:void(0);'";
628: }
629: return $nothing;
630: }
631:
632: ##############################################
633: ##############################################
634: sub javascript_docopen {
635: # safari does not understand document.open() and loads "text/html"
636: my $nothing = "''";
637: my $user_browser;
638: my $user_os;
639: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
640: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
641: if (! defined($user_browser) || ! defined($user_os)) {
642: (undef,$user_browser,undef,undef,undef,$user_os) =
643: &Apache::loncommon::decode_user_agent();
644: }
645: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
646: $nothing = "document.clear()";
647: } else {
648: $nothing = "document.open('text/html','replace')";
649: }
650: return $nothing;
651: }
652:
653:
654: ##############################################
655: ##############################################
656:
657: =pod
658:
659: =item &StatusOptions()
660:
661: Returns html for a selection box which allows the user to choose the
662: enrollment status of students. The selection box name is 'Status'.
663:
664: Inputs:
665:
666: $status: the currently selected status. If undefined the value of
667: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
668: is used.
669:
670: $formname: The name of the form. If defined the onchange attribute of
671: the selection box is set to document.$formname.submit().
672:
673: $size: the size (number of lines) of the selection box.
674:
675: $onchange: javascript to use when the value is changed. Enclosed in
676: double quotes, ""s, not single quotes.
677:
678: Returns: a perl string as described.
679:
680: =cut
681:
682: ##############################################
683: ##############################################
684: sub StatusOptions {
685: my ($status, $formName,$size,$onchange)=@_;
686: $size = 1 if (!defined($size));
687: if (! defined($status)) {
688: $status = 'Active';
689: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
690: }
691:
692: my $Str = '';
693: $Str .= '<select name="Status"';
694: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
695: $Str .= ' onchange="document.'.$formName.'.submit()"';
696: }
697: if (defined($onchange)) {
698: $Str .= ' onchange="'.$onchange.'"';
699: }
700: $Str .= ' size="'.$size.'" ';
701: $Str .= '>'."\n";
702: foreach my $type (['Active', &mt('Currently Has Access')],
703: ['Future', &mt('Will Have Future Access')],
704: ['Expired', &mt('Previously Had Access')],
705: ['Any', &mt('Any Access Status')]) {
706: my ($name,$label) = @$type;
707: $Str .= '<option value="'.$name.'" ';
708: if ($status eq $name) {
709: $Str .= 'selected="selected" ';
710: }
711: $Str .= '>'.$label.'</option>'."\n";
712: }
713:
714: $Str .= '</select>'."\n";
715: }
716:
717: ########################################################
718: ########################################################
719:
720: =pod
721:
722: =item Progess Window Handling Routines
723:
724: These routines handle the creation, update, increment, and closure of
725: progress windows. The progress window reports to the user the number
726: of items completed and an estimate of the time required to complete the rest.
727:
728: =over 4
729:
730:
731: =item &Create_PrgWin
732:
733: Writes javascript to the client to open a progress window and returns a
734: data structure used for bookkeeping.
735:
736: Inputs
737:
738: =over 4
739:
740: =item $r Apache request
741:
742: =item $title The title of the progress window
743:
744: =item $heading A description (usually 1 line) of the process being initiated.
745:
746: =item $number_to_do The total number of items being processed.
747:
748: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
749: specified)
750:
751: =item $width Specify the width in charaters of the input field.
752:
753: =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
754:
755: =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
756:
757: =back
758:
759: Returns a hash containing the progress state data structure.
760:
761:
762: =item &Update_PrgWin
763:
764: Updates the text in the progress indicator. Does not increment the count.
765: See &Increment_PrgWin.
766:
767: Inputs:
768:
769: =over 4
770:
771: =item $r Apache request
772:
773: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
774:
775: =item $displaystring The string to write to the status indicator
776:
777: =back
778:
779: Returns: none
780:
781:
782: =item Increment_PrgWin
783:
784: Increment the count of items completed for the progress window by 1.
785:
786: Inputs:
787:
788: =over 4
789:
790: =item $r Apache request
791:
792: =item $prog_state Pointer to the data structure returned by Create_PrgWin
793:
794: =item $extraInfo A description of the items being iterated over. Typically
795: 'student'.
796:
797: =back
798:
799: Returns: none
800:
801:
802: =item Close_PrgWin
803:
804: Closes the progress window.
805:
806: Inputs:
807:
808: =over 4
809:
810: =item $r Apache request
811:
812: =item $prog_state Pointer to the data structure returned by Create_PrgWin
813:
814: =back
815:
816: Returns: none
817:
818: =back
819:
820: =cut
821:
822: ########################################################
823: ########################################################
824:
825: my $uniq=0;
826: sub get_uniq_name {
827: $uniq++;
828: return 'uniquename'.$uniq;
829: }
830:
831: # Create progress
832: sub Create_PrgWin {
833: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
834: $inputname)=@_;
835: if (!defined($type)) { $type='popup'; }
836: if (!defined($width)) { $width=55; }
837: my %prog_state;
838: $prog_state{'type'}=$type;
839: if ($type eq 'popup') {
840: $prog_state{'window'}='popwin';
841: my $start_page =
842: &Apache::loncommon::start_page($title,undef,
843: {'only_body' => 1,
844: 'bgcolor' => '#88DDFF',
845: 'js_ready' => 1});
846: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
847:
848: #the whole function called through timeout is due to issues
849: #in mozilla Read BUG #2665 if you want to know the whole story
850: &r_print($r,'<script type="text/javascript">'.
851: "var popwin;
852: function openpopwin () {
853: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
854: "popwin.document.writeln(\'".$start_page.
855: "<h4>$heading<\/h4>".
856: "<form name=\"popremain\" method=\"post\">".
857: '<input type="text" size="'.$width.'" name="remaining" value="'.
858: &mt('Starting').'" /><\\/form>'.$end_page.
859: "\');".
860: "popwin.document.close();}".
861: "\nwindow.setTimeout(openpopwin,0)</script>");
862: $prog_state{'formname'}='popremain';
863: $prog_state{'inputname'}="remaining";
864: } elsif ($type eq 'inline') {
865: $prog_state{'window'}='window';
866: if (!$formname) {
867: $prog_state{'formname'}=&get_uniq_name();
868: &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
869: } else {
870: $prog_state{'formname'}=$formname;
871: }
872: if (!$inputname) {
873: $prog_state{'inputname'}=&get_uniq_name();
874: &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
875: '" size="'.$width.'" />');
876: } else {
877: $prog_state{'inputname'}=$inputname;
878:
879: }
880: if (!$formname) { &r_print($r,'</form>'); }
881: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
882: }
883:
884: $prog_state{'done'}=0;
885: $prog_state{'firststart'}=&Time::HiRes::time();
886: $prog_state{'laststart'}=&Time::HiRes::time();
887: $prog_state{'max'}=$number_to_do;
888:
889: return %prog_state;
890: }
891:
892: # update progress
893: sub Update_PrgWin {
894: my ($r,$prog_state,$displayString)=@_;
895: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
896: $$prog_state{'formname'}.'.'.
897: $$prog_state{'inputname'}.'.value="'.
898: $displayString.'";</script>');
899: $$prog_state{'laststart'}=&Time::HiRes::time();
900: }
901:
902: # increment progress state
903: sub Increment_PrgWin {
904: my ($r,$prog_state,$extraInfo)=@_;
905: $$prog_state{'done'}++;
906: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
907: $$prog_state{'done'} *
908: ($$prog_state{'max'}-$$prog_state{'done'});
909: $time_est = int($time_est);
910: #
911: my $min = int($time_est/60);
912: my $sec = $time_est % 60;
913: #
914: my $str;
915: if ($min == 0 && $sec > 1) {
916: $str = '[_2] seconds';
917: } elsif ($min == 1 && $sec > 1) {
918: $str = '1 minute [_2] seconds';
919: } elsif ($min == 1 && $sec < 2) {
920: $str = '1 minute';
921: } elsif ($min < 10 && $sec > 1) {
922: $str = '[_1] minutes, [_2] seconds';
923: } elsif ($min >= 10 || $sec < 2) {
924: $str = '[_1] minutes';
925: }
926: $time_est = &mt($str,$min,$sec);
927: #
928: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
929: if ($lasttime > 9) {
930: $lasttime = int($lasttime);
931: } elsif ($lasttime < 0.01) {
932: $lasttime = 0;
933: } else {
934: $lasttime = sprintf("%3.2f",$lasttime);
935: }
936: if ($lasttime == 1) {
937: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
938: } else {
939: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
940: }
941: #
942: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
943: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
944: if (! defined($user_browser) || ! defined($user_os)) {
945: (undef,$user_browser,undef,undef,undef,$user_os) =
946: &Apache::loncommon::decode_user_agent();
947: }
948: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
949: $lasttime = '';
950: }
951: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
952: $$prog_state{'formname'}.'.'.
953: $$prog_state{'inputname'}.'.value="'.
954: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
955: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
956: $$prog_state{'laststart'}=&Time::HiRes::time();
957: }
958:
959: # close Progress Line
960: sub Close_PrgWin {
961: my ($r,$prog_state)=@_;
962: if ($$prog_state{'type'} eq 'popup') {
963: &r_print($r,'<script>popwin.close()</script>'."\n");
964: } elsif ($$prog_state{'type'} eq 'inline') {
965: &Update_PrgWin($r,$prog_state,&mt('Done'));
966: }
967: undef(%$prog_state);
968: }
969:
970: sub r_print {
971: my ($r,$to_print)=@_;
972: if ($r) {
973: $r->print($to_print);
974: $r->rflush();
975: } else {
976: print($to_print);
977: }
978: }
979:
980: # ------------------------------------------------------- Puts directory header
981:
982: sub crumbs {
983: my ($uri,$target,$prefix,$form,$size,$noformat,$skiplast)=@_;
984: if (! defined($size)) {
985: $size = '+2';
986: }
987: if ($target) {
988: $target = ' target="'.
989: &Apache::loncommon::escape_single($target).'"';
990: }
991: my $output='';
992: unless ($noformat) { $output.='<br /><tt><b>'; }
993: $output.='<font size="'.$size.'">'.$prefix.'/';
994: if ($env{'user.adv'}) {
995: my $path=$prefix.'/';
996: foreach my $dir (split('/',$uri)) {
997: if (! $dir) { next; }
998: $path .= $dir;
999: if ($path eq $uri) {
1000: if ($skiplast) {
1001: $output.=$dir;
1002: last;
1003: }
1004: } else {
1005: $path.='/';
1006: }
1007: my $linkpath = &Apache::loncommon::escape_single($path);
1008: if ($form) {
1009: $linkpath=
1010: qq{javascript:$form.action='$linkpath';$form.submit();};
1011: }
1012: $output.=qq{<a href="$linkpath" $target>$dir</a>/};
1013: }
1014: } else {
1015: foreach my $dir (split('/',$uri)) {
1016: if (! $dir) { next; }
1017: $output.=$dir.'/';
1018: }
1019: }
1020: if ($uri !~ m|/$|) { $output=~s|/$||; }
1021: return $output.'</font>'.($noformat?'':'</b></tt><br />');
1022: }
1023:
1024: # --------------------- A function that generates a window for the spellchecker
1025:
1026: sub spellheader {
1027: my $start_page=
1028: &Apache::loncommon::start_page('Speller Suggestions',undef,
1029: {'only_body' => 1,
1030: 'js_ready' => 1,
1031: 'bgcolor' => '#DDDDDD',
1032: 'add_entries' => {
1033: 'onload' =>
1034: 'document.forms.spellcheckform.submit()',
1035: }
1036: });
1037: my $end_page=
1038: &Apache::loncommon::end_page({'js_ready' => 1});
1039:
1040: my $nothing=&javascript_nothing();
1041: return (<<ENDCHECK);
1042: <script type="text/javascript">
1043: //<!-- BEGIN LON-CAPA Internal
1044: var checkwin;
1045:
1046: function spellcheckerwindow(string) {
1047: var esc_string = string.replace(/\"/g,'"');
1048: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1049: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1050: checkwin.document.close();
1051: }
1052: // END LON-CAPA Internal -->
1053: </script>
1054: ENDCHECK
1055: }
1056:
1057: # ---------------------------------- Generate link to spell checker for a field
1058:
1059: sub spelllink {
1060: my ($form,$field)=@_;
1061: my $linktext=&mt('Check Spelling');
1062: return (<<ENDLINK);
1063: <a href="javascript:if (typeof(document.$form.onsubmit)!='undefined') { if (document.$form.onsubmit!=null) { document.$form.onsubmit();}};spellcheckerwindow(this.document.forms.$form.$field.value);">$linktext</a>
1064: ENDLINK
1065: }
1066:
1067: # ------------------------------------------------- Output headers for HTMLArea
1068:
1069: {
1070: my @htmlareafields;
1071: sub init_htmlareafields {
1072: undef(@htmlareafields);
1073: }
1074:
1075: sub add_htmlareafields {
1076: my (@newfields) = @_;
1077: push(@htmlareafields,@newfields);
1078: }
1079:
1080: sub get_htmlareafields {
1081: return @htmlareafields;
1082: }
1083: }
1084:
1085: sub htmlareaheaders {
1086: if (&htmlareablocked()) { return ''; }
1087: unless (&htmlareabrowser()) { return ''; }
1088: my $lang='en';
1089: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1090: $lang=&mt('htmlarea_lang');
1091: }
1092: return (<<ENDHEADERS);
1093: <script type="text/javascript">
1094: _editor_url='/htmlarea/';
1095: _editor_lang='$lang';
1096: </script>
1097: <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
1098: <link rel="stylesheet" type="text/css" href="/htmlarea/htmlarea.css" />
1099: ENDHEADERS
1100: }
1101:
1102: # ------------------------------------------------- Activate additional buttons
1103:
1104: sub htmlareaaddbuttons {
1105: if (&htmlareablocked()) { return ''; }
1106: unless (&htmlareabrowser()) { return ''; }
1107: return (<<ENDADDBUTTON);
1108: var config=new HTMLArea.Config();
1109: config.registerButton('ed_math','LaTeX Inline',
1110: '/htmlarea/images/ed_math.gif',false,
1111: function(editor,id) {
1112: editor.surroundHTML(' <m>\$','\$</m> ');
1113: }
1114: );
1115: config.registerButton('ed_math_eqn','LaTeX Equation',
1116: '/htmlarea/images/ed_math_eqn.gif',false,
1117: function(editor,id) {
1118: editor.surroundHTML(
1119: ' \\n<center><m>\\\\[','\\\\]</m></center>\\n ');
1120: }
1121: );
1122: config.toolbar.push(['ed_math','ed_math_eqn']);
1123: ENDADDBUTTON
1124: }
1125:
1126: # ----------------------------------------------------------------- Preferences
1127:
1128: sub disablelink {
1129: my @fields=@_;
1130: if (defined($#fields)) {
1131: unless ($#fields>=0) { return ''; }
1132: }
1133: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1134: }
1135:
1136: sub enablelink {
1137: my @fields=@_;
1138: if (defined($#fields)) {
1139: unless ($#fields>=0) { return ''; }
1140: }
1141: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1142: }
1143:
1144: # ----------------------------------------- Script to activate only some fields
1145:
1146: sub htmlareaselectactive {
1147: my @fields=@_;
1148: unless (&htmlareabrowser()) { return ''; }
1149: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1150: my $output='<script type="text/javascript" defer="1">'.
1151: &htmlareaaddbuttons();
1152: foreach(@fields) {
1153: $output.="\nHTMLArea.replace('$_',config);";
1154: }
1155: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1156: &disablelink(@fields);
1157: return $output;
1158: }
1159:
1160: # --------------------------------------------------------------------- Blocked
1161:
1162: sub htmlareablocked {
1163: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1164: return 0;
1165: }
1166:
1167: # ---------------------------------------- Browser capable of running HTMLArea?
1168:
1169: sub htmlareabrowser {
1170: return 1;
1171: }
1172:
1173: ############################################################
1174: ############################################################
1175:
1176: =pod
1177:
1178: =item breadcrumbs
1179:
1180: Compiles the previously registered breadcrumbs into an series of links.
1181: FAQ and BUG links will be placed on the left side of the table if they
1182: are defined for the last registered breadcrumb.
1183: Additionally supports a 'component', which will be displayed on the
1184: right side of the table (without a link).
1185: A link to help for the component will be included if one is specified.
1186:
1187: All inputs can be undef without problems.
1188:
1189: Inputs: $component (the large text on the right side of the table),
1190: $component_help
1191: $menulink (boolean, controls whether to include a link to /adm/menu)
1192: $helplink (if 'nohelp' don't include the orange help link)
1193: $css_class (optional name for the class to apply to the table for CSS)
1194: Returns a string containing breadcrumbs for the current page.
1195:
1196: =item clear_breadcrumbs
1197:
1198: Clears the previously stored breadcrumbs.
1199:
1200: =item add_breadcrumb
1201:
1202: Pushes a breadcrumb on the stack of crumbs.
1203:
1204: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1205: are required. If present the keys 'faq' and 'bug' will be used to provide
1206: links to the FAQ and bug sites.
1207:
1208: returns: nothing
1209:
1210: =cut
1211:
1212: ############################################################
1213: ############################################################
1214: {
1215: my @Crumbs;
1216:
1217: sub breadcrumbs {
1218: my ($component,$component_help,$menulink,$helplink,$css_class) = @_;
1219: #
1220: $css_class ||= 'LC_breadcrumbs';
1221: my $Str = "\n".'<table class="'.$css_class.'"><tr><td>';
1222: #
1223: # Make the faq and bug data cascade
1224: my $faq = '';
1225: my $bug = '';
1226: my $help='';
1227: # The last breadcrumb does not have a link, so handle it separately.
1228: my $last = pop(@Crumbs);
1229: #
1230: # The first one should be the course or a menu link
1231: if (!defined($menulink)) { $menulink=1; }
1232: if ($menulink) {
1233: my $description = 'Menu';
1234: if (exists($env{'request.course.id'}) &&
1235: $env{'request.course.id'} ne '') {
1236: $description =
1237: $env{'course.'.$env{'request.course.id'}.'.description'};
1238: }
1239: unshift(@Crumbs,{
1240: href =>'/adm/menu',
1241: title =>'Go to main menu',
1242: target =>'_top',
1243: text =>$description,
1244: });
1245: }
1246: my $links .=
1247: join('->',
1248: map {
1249: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1250: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1251: $help = $_->{'help'} if (exists($_->{'help'}));
1252: my $result = '<a href="'.$_->{'href'}.'" ';
1253: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1254: $result .= 'target="'.$_->{'target'}.'" ';
1255: }
1256: $result .='title="'.&mt($_->{'title'}).'">'.
1257: &mt($_->{'text'}).'</a>';
1258: $result;
1259: } @Crumbs
1260: );
1261: $links .= '->' if ($links ne '');
1262: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1263: #
1264: my $icons = '';
1265: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1266: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1267: $help = $last->{'help'} if (exists($last->{'help'}));
1268: $component_help=($component_help?$component_help:$help);
1269: # if ($faq ne '') {
1270: # $icons .= &Apache::loncommon::help_open_faq($faq);
1271: # }
1272: # if ($bug ne '') {
1273: # $icons .= &Apache::loncommon::help_open_bug($bug);
1274: # }
1275: if ($faq ne '' || $component_help ne '' || $bug ne '') {
1276: $icons .= &Apache::loncommon::help_open_menu($component,
1277: $component_help,
1278: $faq,$bug);
1279: }
1280: #
1281: $Str .= $links.'</td>';
1282: #
1283: if (defined($component)) {
1284: $Str .= '<td class="'.$css_class.'_component">'.
1285: &mt($component);
1286: if ($icons ne '') {
1287: $Str .= ' '.$icons;
1288: }
1289: $Str .= '</td>';
1290: }
1291: $Str .= '</tr></table>'."\n";
1292: #
1293: # Return the @Crumbs stack to what we started with
1294: push(@Crumbs,$last);
1295: shift(@Crumbs);
1296: #
1297: return $Str;
1298: }
1299:
1300: sub clear_breadcrumbs {
1301: undef(@Crumbs);
1302: }
1303:
1304: sub add_breadcrumb {
1305: push (@Crumbs,@_);
1306: }
1307:
1308: } # End of scope for @Crumbs
1309:
1310: ############################################################
1311: ############################################################
1312:
1313: # Nested table routines.
1314: #
1315: # Routines to display form items in a multi-row table with 2 columns.
1316: # Uses nested tables to divide form elements into segments.
1317: # For examples of use see loncom/interface/lonnotify.pm
1318: #
1319: # Can be used in following order: ...
1320: # &start_pick_box()
1321: # row1
1322: # row2
1323: # row3 ... etc.
1324: # &submit_row(0
1325: # &end_pickbox()
1326: #
1327: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1328: # &status_select_row and &email_default_row
1329: #
1330: # Can also be used in following order:
1331: #
1332: # &start_pick_box()
1333: # &row_title()
1334: # &row_closure()
1335: # &row_title()
1336: # &row_closure() ... etc.
1337: # &submit_row()
1338: # &end_pick_box()
1339: #
1340: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1341: # as this routine adds a button for form submission.
1342: # &submit_row() does not require a &row_closure after it.
1343: #
1344: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1345: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1346: #
1347: # &row_title() adds a title in the left column for each segment.
1348: # &row_closure() closes a row with a 1-pixel wide black line.
1349: #
1350: # &role_select_row() provides a select box from which to choose 1 or more roles
1351: # &course_select_row provides ways of picking groups of courses
1352: # radio buttons: all, by category or by picking from a course picker pop-up
1353: # note: by category option is only displayed if a domain has implemented
1354: # selection by year, semester, department, number etc.
1355: #
1356: # &status_select_row() provides a select box from which to choose 1 or more
1357: # access types (current access, prior access, and future access)
1358: #
1359: # &email_default_row() provides text boxes for default e-mail suffixes for
1360: # different authentication types in a domain.
1361: #
1362: # &row_title() and &row_closure() are called internally by the &*_select_row
1363: # routines, but can also be called directly to start and end rows which have
1364: # needs that are not accommodated by the *_select_row() routines.
1365:
1366: sub start_pick_box {
1367: my ($css_class) = @_;
1368: if (defined($css_class)) {
1369: $css_class = 'class="'.$css_class.'"';
1370: } else {
1371: $css_class= 'class="LC_pick_box"';
1372: }
1373: my $output = <<"END";
1374: <table $css_class>
1375: END
1376: return $output;
1377: }
1378:
1379: sub end_pick_box {
1380: my $output = <<"END";
1381: </table>
1382: END
1383: return $output;
1384: }
1385:
1386: sub row_title {
1387: my ($title,$css_title_class,$css_value_class) = @_;
1388: $css_title_class ||= 'LC_pick_box_title';
1389: $css_title_class = 'class="'.$css_title_class.'"';
1390:
1391: $css_value_class ||= 'LC_pick_box_value';
1392: $css_value_class = 'class="'.$css_value_class.'"';
1393:
1394: my $output = <<"ENDONE";
1395: <tr class="LC_pick_box_row">
1396: <td $css_title_class>
1397: $title:
1398: </td>
1399: <td $css_value_class>
1400: ENDONE
1401: return $output;
1402: }
1403:
1404: sub row_closure {
1405: my ($no_separator) =@_;
1406: my $output = <<"ENDTWO";
1407: </td>
1408: </tr>
1409: ENDTWO
1410: if (!$no_separator) {
1411: $output .= <<"ENDTWO";
1412: <tr>
1413: <td colspan="2" class="LC_pick_box_separator">
1414: </td>
1415: </tr>
1416: ENDTWO
1417: }
1418: return $output;
1419: }
1420:
1421: sub role_select_row {
1422: my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
1423: my $output;
1424: if (defined($title)) {
1425: $output = &row_title($title,$css_class);
1426: }
1427: $output .= qq|
1428: <select name="roles" multiple >\n|;
1429: foreach my $role (@$roles) {
1430: my $plrole;
1431: if ($role eq 'ow') {
1432: $plrole = &mt('Course Owner');
1433: } elsif ($role eq 'cr') {
1434: if ($show_separate_custom) {
1435: if ($cdom ne '' && $cnum ne '') {
1436: my %course_customroles = &course_custom_roles($cdom,$cnum);
1437: foreach my $crrole (sort(keys(%course_customroles))) {
1438: my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
1439: $output .= ' <option value="'.$crrole.'">'.$plcrrole.
1440: '</option>';
1441: }
1442: }
1443: } else {
1444: $plrole = &mt('Custom Role');
1445: }
1446: } else {
1447: $plrole=&Apache::lonnet::plaintext($role);
1448: }
1449: if (($role ne 'cr') || (!$show_separate_custom)) {
1450: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1451: }
1452: }
1453: $output .= qq| </select>\n|;
1454: if (defined($title)) {
1455: $output .= &row_closure();
1456: }
1457: return $output;
1458: }
1459:
1460: sub course_select_row {
1461: my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
1462: $css_class) = @_;
1463: my $output = &row_title($title,$css_class);
1464: $output .= qq|
1465: <script type="text/javascript">
1466: function coursePick (formname) {
1467: for (var i=0; i<formname.coursepick.length; i++) {
1468: if (formname.coursepick[i].value == 'category') {
1469: courseSet('');
1470: }
1471: if (!formname.coursepick[i].checked) {
1472: if (formname.coursepick[i].value == 'specific') {
1473: formname.coursetotal.value = 0;
1474: formname.courselist = '';
1475: }
1476: }
1477: }
1478: }
1479: function setPick (formname) {
1480: for (var i=0; i<formname.coursepick.length; i++) {
1481: if (formname.coursepick[i].value == 'category') {
1482: formname.coursepick[i].checked = true;
1483: }
1484: formname.coursetotal.value = 0;
1485: formname.courselist = '';
1486: }
1487: }
1488: </script>
1489: |;
1490: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1491: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1492: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses').'<br />';
1493: if ($totcodes > 0) {
1494: my $numtitles = @$codetitles;
1495: if ($numtitles > 0) {
1496: $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 />';
1497: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1498: '<select name="'.$$codetitles[0].
1499: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1500: ' <option value="-1" />Select'."\n";
1501: my @items = ();
1502: my @longitems = ();
1503: if ($$idlist{$$codetitles[0]} =~ /","/) {
1504: @items = split(/","/,$$idlist{$$codetitles[0]});
1505: } else {
1506: $items[0] = $$idlist{$$codetitles[0]};
1507: }
1508: if (defined($$idlist_titles{$$codetitles[0]})) {
1509: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1510: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1511: } else {
1512: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1513: }
1514: for (my $i=0; $i<@longitems; $i++) {
1515: if ($longitems[$i] eq '') {
1516: $longitems[$i] = $items[$i];
1517: }
1518: }
1519: } else {
1520: @longitems = @items;
1521: }
1522: for (my $i=0; $i<@items; $i++) {
1523: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1524: }
1525: $output .= '</select></td>';
1526: for (my $i=1; $i<$numtitles; $i++) {
1527: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1528: '<select name="'.$$codetitles[$i].
1529: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1530: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1531: '</select>'."\n".
1532: '</td>';
1533: }
1534: $output .= '</tr></table><br />';
1535: }
1536: }
1537: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."'".','."'".'dccourse'."'".','."'".'dcdomain'."'".','."'".'coursedesc'."','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br />'."\n";
1538: $output .= &row_closure();
1539: return $output;
1540: }
1541:
1542: sub status_select_row {
1543: my ($types,$title,$css_class) = @_;
1544: my $output;
1545: if (defined($title)) {
1546: $output = &row_title($title,$css_class,'LC_pick_box_select');
1547: }
1548: $output .= qq|
1549: <select name="types" multiple>\n|;
1550: foreach my $status_type (sort(keys(%{$types}))) {
1551: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1552: }
1553: $output .= qq| </select>\n|;
1554: if (defined($title)) {
1555: $output .= &row_closure();
1556: }
1557: return $output;
1558: }
1559:
1560: sub email_default_row {
1561: my ($authtypes,$title,$descrip,$css_class) = @_;
1562: my $output = &row_title($title,$css_class);
1563: my @rowcols = ('#eeeeee','#dddddd');
1564: $output .= $descrip.
1565: &Apache::loncommon::start_data_table().
1566: &Apache::loncommon::start_data_table_header_row().
1567: '<th>'.&mt('Authentication Method').'</th>'.
1568: '<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
1569: &Apache::loncommon::end_data_table_header_row();
1570: my $rownum = 0;
1571: foreach my $auth (sort(keys(%{$authtypes}))) {
1572: my ($userentry,$size);
1573: if ($auth =~ /^krb/) {
1574: $userentry = '';
1575: $size = 25;
1576: } else {
1577: $userentry = 'username@';
1578: $size = 15;
1579: }
1580: $output .= &Apache::loncommon::start_data_table_row().
1581: '<td> '.$$authtypes{$auth}.'</td>'.
1582: '<td align="right">'.$userentry.
1583: '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
1584: &Apache::loncommon::end_data_table_row();
1585: }
1586: $output .= &Apache::loncommon::end_data_table();
1587: $output .= &row_closure();
1588: return $output;
1589: }
1590:
1591:
1592: sub submit_row {
1593: my ($title,$cmd,$submit_text,$css_class) = @_;
1594: my $output = &row_title($title,$css_class,'LC_pick_box_submit');
1595: $output .= qq|
1596: <br />
1597: <input type="hidden" name="command" value="$cmd" />
1598: <input type="submit" value="$submit_text"/>
1599: <br /><br />
1600: \n|;
1601: return $output;
1602: }
1603:
1604: sub course_custom_roles {
1605: my ($cdom,$cnum) = @_;
1606: my %returnhash=();
1607: my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
1608: foreach my $person (sort(keys(%coursepersonnel))) {
1609: my ($role) = ($person =~ /^([^:]+):/);
1610: my ($end,$start) = split(/:/,$coursepersonnel{$person});
1611: if ($end == -1 && $start == -1) {
1612: next;
1613: }
1614: if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
1615: $returnhash{$role} ++;
1616: }
1617: }
1618: return %returnhash;
1619: }
1620:
1621:
1622: ##############################################
1623: ##############################################
1624:
1625: # echo_form_input
1626: #
1627: # Generates html markup to add form elements from the referrer page
1628: # as hidden form elements (values encoded) in the new page.
1629: #
1630: # Intended to support two types of use
1631: # (a) to allow backing up to earlier pages in a multi-page
1632: # form submission process using a breadcrumb trail.
1633: #
1634: # (b) to allow the current page to be reloaded with form elements
1635: # set on previous page to remain unchanged. An example would
1636: # be where the a page containing a dynamically-built table of data is
1637: # is to be redisplayed, with only the sort order of the data changed.
1638: #
1639: # Inputs:
1640: # 1. Reference to array of form elements in the submitted form on
1641: # the referrer page which are to be excluded from the echoed elements.
1642: #
1643: # 2. Reference to array of regular expressions, which if matched in the
1644: # name of the form element n the referrer page will be omitted from echo.
1645: #
1646: # Outputs: A scalar containing the html markup for the echoed form
1647: # elements (all as hidden elements, with values encoded).
1648:
1649:
1650: sub echo_form_input {
1651: my ($excluded,$regexps) = @_;
1652: my $output = '';
1653: foreach my $key (keys(%env)) {
1654: if ($key =~ /^form\.(.+)$/) {
1655: my $name = $1;
1656: my $match = 0;
1657: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1658: if (defined($regexps)) {
1659: if (@{$regexps} > 0) {
1660: foreach my $regexp (@{$regexps}) {
1661: if ($name =~ /\Q$regexp\E/) {
1662: $match = 1;
1663: last;
1664: }
1665: }
1666: }
1667: }
1668: if (!$match) {
1669: if (ref($env{$key})) {
1670: foreach my $value (@{$env{$key}}) {
1671: $value = &HTML::Entities::encode($value,'<>&"');
1672: $output .= '<input type="hidden" name="'.$name.
1673: '" value="'.$value.'" />'."\n";
1674: }
1675: } else {
1676: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1677: $output .= '<input type="hidden" name="'.$name.
1678: '" value="'.$value.'" />'."\n";
1679: }
1680: }
1681: }
1682: }
1683: }
1684: return $output;
1685: }
1686:
1687: ##############################################
1688: ##############################################
1689:
1690: # set_form_elements
1691: #
1692: # Generates javascript to set form elements to values based on
1693: # corresponding values for the same form elements when the page was
1694: # previously submitted.
1695: #
1696: # Last submission values are read from hidden form elements in referring
1697: # page which have the same name, i.e., generated by &echo_form_input().
1698: #
1699: # Intended to be called by onload event.
1700: #
1701: # Inputs:
1702: # (a) Reference to hash of echoed form elements to be set.
1703: #
1704: # In the hash, keys are the form element names, and the values are the
1705: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1706: # hidden).
1707: #
1708: # (b) Optional reference to hash of stored elements to be set.
1709: #
1710: # If the page being displayed is a page which permits modification of
1711: # previously stored data, e.g., the first page in a multi-page submission,
1712: # then if stored is supplied, form elements will be set to the last stored
1713: # values. If user supplied values are also available for the same elements
1714: # these will replace the stored values.
1715: #
1716: # Output:
1717: #
1718: # javascript function - set_form_elements() which sets form elements,
1719: # expects an argument: formname - the name of the form according to
1720: # the DOM, e.g., document.compose
1721:
1722: sub set_form_elements {
1723: my ($elements,$stored) = @_;
1724: my %values;
1725: my $output .= 'function setFormElements(courseForm) {
1726: ';
1727: if (defined($stored)) {
1728: foreach my $name (keys(%{$stored})) {
1729: if (exists($$elements{$name})) {
1730: if (ref($$stored{$name}) eq 'ARRAY') {
1731: $values{$name} = $$stored{$name};
1732: } else {
1733: @{$values{$name}} = ($$stored{$name});
1734: }
1735: }
1736: }
1737: }
1738:
1739: foreach my $key (keys(%env)) {
1740: if ($key =~ /^form\.(.+)$/) {
1741: my $name = $1;
1742: if (exists($$elements{$name})) {
1743: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1744: }
1745: }
1746: }
1747:
1748: foreach my $name (keys(%values)) {
1749: for (my $i=0; $i<@{$values{$name}}; $i++) {
1750: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1751: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1752: $values{$name}[$i] =~ s/"/\\"/g;
1753: }
1754: if ($$elements{$name} eq 'text') {
1755: my $numvalues = @{$values{$name}};
1756: if ($numvalues > 1) {
1757: my $valuestring = join('","',@{$values{$name}});
1758: $output .= qq|
1759: var textvalues = new Array ("$valuestring");
1760: var total = courseForm.elements['$name'].length;
1761: if (total > $numvalues) {
1762: total = $numvalues;
1763: }
1764: for (var i=0; i<total; i++) {
1765: courseForm.elements['$name']\[i].value = textvalues[i];
1766: }
1767: |;
1768: } else {
1769: $output .= qq|
1770: courseForm.elements['$name'].value = "$values{$name}[0]";
1771: |;
1772: }
1773: } else {
1774: $output .= qq|
1775: var elementLength = courseForm.elements['$name'].length;
1776: if (elementLength==undefined) {
1777: |;
1778: foreach my $value (@{$values{$name}}) {
1779: if ($$elements{$name} eq 'selectbox') {
1780: $output .= qq|
1781: if (courseForm.elements['$name'].options[0].value == "$value") {
1782: courseForm.elements['$name'].options[0].selected = true;
1783: }|;
1784: } elsif (($$elements{$name} eq 'radio') ||
1785: ($$elements{$name} eq 'checkbox')) {
1786: $output .= qq|
1787: if (courseForm.elements['$name'].value == "$value") {
1788: courseForm.elements['$name'].checked = true;
1789: }|;
1790: }
1791: }
1792: $output .= qq|
1793: }
1794: else {
1795: for (var i=0; i<courseForm.elements['$name'].length; i++) {
1796: |;
1797: if ($$elements{$name} eq 'selectbox') {
1798: $output .= qq|
1799: courseForm.elements['$name'].options[i].selected = false;|;
1800: } elsif (($$elements{$name} eq 'radio') ||
1801: ($$elements{$name} eq 'checkbox')) {
1802: $output .= qq|
1803: courseForm.elements['$name']\[i].checked = false;|;
1804: }
1805: $output .= qq|
1806: }
1807: for (var j=0; j<courseForm.elements['$name'].length; j++) {
1808: |;
1809: foreach my $value (@{$values{$name}}) {
1810: if ($$elements{$name} eq 'selectbox') {
1811: $output .= qq|
1812: if (courseForm.elements['$name'].options[j].value == "$value") {
1813: courseForm.elements['$name'].options[j].selected = true;
1814: }|;
1815: } elsif (($$elements{$name} eq 'radio') ||
1816: ($$elements{$name} eq 'checkbox')) {
1817: $output .= qq|
1818: if (courseForm.elements['$name']\[j].value == "$value") {
1819: courseForm.elements['$name']\[j].checked = true;
1820: }|;
1821: }
1822: }
1823: $output .= qq|
1824: }
1825: }
1826: |;
1827: }
1828: }
1829: $output .= "
1830: }\n";
1831: return $output;
1832: }
1833:
1834: 1;
1835:
1836: __END__
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