1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.138 2006/06/30 04:02:25 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: $result .= &mt('[_4]Select Date[_5]',$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: $result .= &mt('[_7]Select Date[_8]',$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 $OpSel1 = '';
693: my $OpSel2 = '';
694: my $OpSel3 = '';
695:
696: if($status eq 'Any') { $OpSel3 = ' selected'; }
697: elsif($status eq 'Expired' ) { $OpSel2 = ' selected'; }
698: else { $OpSel1 = ' selected'; }
699:
700: my $Str = '';
701: $Str .= '<select name="Status"';
702: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
703: $Str .= ' onchange="document.'.$formName.'.submit()"';
704: }
705: if (defined($onchange)) {
706: $Str .= ' onchange="'.$onchange.'"';
707: }
708: $Str .= ' size="'.$size.'" ';
709: $Str .= '>'."\n";
710: $Str .= '<option value="Active" '.$OpSel1.'>'.
711: &mt('Currently Enrolled').'</option>'."\n";
712: $Str .= '<option value="Expired" '.$OpSel2.'>'.
713: &mt('Previously Enrolled').'</option>'."\n";
714: $Str .= '<option value="Any" '.$OpSel3.'>'.
715: &mt('Any Enrollment Status').'</option>'."\n";
716: $Str .= '</select>'."\n";
717: }
718:
719: ########################################################
720: ########################################################
721:
722: =pod
723:
724: =item Progess Window Handling Routines
725:
726: These routines handle the creation, update, increment, and closure of
727: progress windows. The progress window reports to the user the number
728: of items completed and an estimate of the time required to complete the rest.
729:
730: =over 4
731:
732:
733: =item &Create_PrgWin
734:
735: Writes javascript to the client to open a progress window and returns a
736: data structure used for bookkeeping.
737:
738: Inputs
739:
740: =over 4
741:
742: =item $r Apache request
743:
744: =item $title The title of the progress window
745:
746: =item $heading A description (usually 1 line) of the process being initiated.
747:
748: =item $number_to_do The total number of items being processed.
749:
750: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
751: specified)
752:
753: =item $width Specify the width in charaters of the input field.
754:
755: =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
756:
757: =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
758:
759: =back
760:
761: Returns a hash containing the progress state data structure.
762:
763:
764: =item &Update_PrgWin
765:
766: Updates the text in the progress indicator. Does not increment the count.
767: See &Increment_PrgWin.
768:
769: Inputs:
770:
771: =over 4
772:
773: =item $r Apache request
774:
775: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
776:
777: =item $displaystring The string to write to the status indicator
778:
779: =back
780:
781: Returns: none
782:
783:
784: =item Increment_PrgWin
785:
786: Increment the count of items completed for the progress window by 1.
787:
788: Inputs:
789:
790: =over 4
791:
792: =item $r Apache request
793:
794: =item $prog_state Pointer to the data structure returned by Create_PrgWin
795:
796: =item $extraInfo A description of the items being iterated over. Typically
797: 'student'.
798:
799: =back
800:
801: Returns: none
802:
803:
804: =item Close_PrgWin
805:
806: Closes the progress window.
807:
808: Inputs:
809:
810: =over 4
811:
812: =item $r Apache request
813:
814: =item $prog_state Pointer to the data structure returned by Create_PrgWin
815:
816: =back
817:
818: Returns: none
819:
820: =back
821:
822: =cut
823:
824: ########################################################
825: ########################################################
826:
827: my $uniq=0;
828: sub get_uniq_name {
829: $uniq++;
830: return 'uniquename'.$uniq;
831: }
832:
833: # Create progress
834: sub Create_PrgWin {
835: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
836: $inputname)=@_;
837: if (!defined($type)) { $type='popup'; }
838: if (!defined($width)) { $width=55; }
839: my %prog_state;
840: $prog_state{'type'}=$type;
841: if ($type eq 'popup') {
842: $prog_state{'window'}='popwin';
843: my $start_page =
844: &Apache::loncommon::start_page($title,undef,
845: {'only_body' => 1,
846: 'bgcolor' => '#88DDFF',
847: 'js_ready' => 1});
848: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
849:
850: #the whole function called through timeout is due to issues
851: #in mozilla Read BUG #2665 if you want to know the whole story
852: &r_print($r,'<script type="text/javascript">'.
853: "var popwin;
854: function openpopwin () {
855: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
856: "popwin.document.writeln(\'".$start_page.
857: "<h4>$heading<\/h4>".
858: "<form name=\"popremain\" method=\"post\">".
859: '<input type="text" size="'.$width.'" name="remaining" value="'.
860: &mt('Starting').'" /><\\/form>'.$end_page.
861: "\');".
862: "popwin.document.close();}".
863: "\nwindow.setTimeout(openpopwin,0)</script>");
864: $prog_state{'formname'}='popremain';
865: $prog_state{'inputname'}="remaining";
866: } elsif ($type eq 'inline') {
867: $prog_state{'window'}='window';
868: if (!$formname) {
869: $prog_state{'formname'}=&get_uniq_name();
870: &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
871: } else {
872: $prog_state{'formname'}=$formname;
873: }
874: if (!$inputname) {
875: $prog_state{'inputname'}=&get_uniq_name();
876: &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
877: '" size="'.$width.'" />');
878: } else {
879: $prog_state{'inputname'}=$inputname;
880:
881: }
882: if (!$formname) { &r_print($r,'</form>'); }
883: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
884: }
885:
886: $prog_state{'done'}=0;
887: $prog_state{'firststart'}=&Time::HiRes::time();
888: $prog_state{'laststart'}=&Time::HiRes::time();
889: $prog_state{'max'}=$number_to_do;
890:
891: return %prog_state;
892: }
893:
894: # update progress
895: sub Update_PrgWin {
896: my ($r,$prog_state,$displayString)=@_;
897: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
898: $$prog_state{'formname'}.'.'.
899: $$prog_state{'inputname'}.'.value="'.
900: $displayString.'";</script>');
901: $$prog_state{'laststart'}=&Time::HiRes::time();
902: }
903:
904: # increment progress state
905: sub Increment_PrgWin {
906: my ($r,$prog_state,$extraInfo)=@_;
907: $$prog_state{'done'}++;
908: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
909: $$prog_state{'done'} *
910: ($$prog_state{'max'}-$$prog_state{'done'});
911: $time_est = int($time_est);
912: #
913: my $min = int($time_est/60);
914: my $sec = $time_est % 60;
915: #
916: my $str;
917: if ($min == 0 && $sec > 1) {
918: $str = '[_2] seconds';
919: } elsif ($min == 1 && $sec > 1) {
920: $str = '1 minute [_2] seconds';
921: } elsif ($min == 1 && $sec < 2) {
922: $str = '1 minute';
923: } elsif ($min < 10 && $sec > 1) {
924: $str = '[_1] minutes, [_2] seconds';
925: } elsif ($min >= 10 || $sec < 2) {
926: $str = '[_1] minutes';
927: }
928: $time_est = &mt($str,$min,$sec);
929: #
930: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
931: if ($lasttime > 9) {
932: $lasttime = int($lasttime);
933: } elsif ($lasttime < 0.01) {
934: $lasttime = 0;
935: } else {
936: $lasttime = sprintf("%3.2f",$lasttime);
937: }
938: if ($lasttime == 1) {
939: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
940: } else {
941: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
942: }
943: #
944: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
945: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
946: if (! defined($user_browser) || ! defined($user_os)) {
947: (undef,$user_browser,undef,undef,undef,$user_os) =
948: &Apache::loncommon::decode_user_agent();
949: }
950: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
951: $lasttime = '';
952: }
953: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
954: $$prog_state{'formname'}.'.'.
955: $$prog_state{'inputname'}.'.value="'.
956: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
957: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
958: $$prog_state{'laststart'}=&Time::HiRes::time();
959: }
960:
961: # close Progress Line
962: sub Close_PrgWin {
963: my ($r,$prog_state)=@_;
964: if ($$prog_state{'type'} eq 'popup') {
965: &r_print($r,'<script>popwin.close()</script>'."\n");
966: } elsif ($$prog_state{'type'} eq 'inline') {
967: &Update_PrgWin($r,$prog_state,&mt('Done'));
968: }
969: undef(%$prog_state);
970: }
971:
972: sub r_print {
973: my ($r,$to_print)=@_;
974: if ($r) {
975: $r->print($to_print);
976: $r->rflush();
977: } else {
978: print($to_print);
979: }
980: }
981:
982: # ------------------------------------------------------- Puts directory header
983:
984: sub crumbs {
985: my ($uri,$target,$prefix,$form,$size,$noformat,$skiplast)=@_;
986: if (! defined($size)) {
987: $size = '+2';
988: }
989: if ($target) {
990: $target = ' target="'.
991: &Apache::loncommon::escape_single($target).'"';
992: }
993: my $output='';
994: unless ($noformat) { $output.='<br /><tt><b>'; }
995: $output.='<font size="'.$size.'">'.$prefix.'/';
996: if ($env{'user.adv'}) {
997: my $path=$prefix.'/';
998: foreach my $dir (split('/',$uri)) {
999: if (! $dir) { next; }
1000: $path .= $dir;
1001: if ($path eq $uri) {
1002: if ($skiplast) {
1003: $output.=$dir;
1004: last;
1005: }
1006: } else {
1007: $path.='/';
1008: }
1009: my $linkpath = &Apache::loncommon::escape_single($path);
1010: if ($form) {
1011: $linkpath=
1012: qq{javascript:$form.action='$linkpath';$form.submit();};
1013: }
1014: $output.=qq{<a href="$linkpath" $target>$dir</a>/};
1015: }
1016: } else {
1017: $output.=$uri;
1018: }
1019: unless ($uri=~/\/$/) { $output=~s/\/$//; }
1020: return $output.'</font>'.($noformat?'':'</b></tt><br />');
1021: }
1022:
1023: # --------------------- A function that generates a window for the spellchecker
1024:
1025: sub spellheader {
1026: my $start_page=
1027: &Apache::loncommon::start_page('Speller Suggestions',undef,
1028: {'only_body' => 1,
1029: 'js_ready' => 1,
1030: 'bgcolor' => '#DDDDDD',});
1031: my $end_page=
1032: &Apache::loncommon::end_page({'js_ready' => 1});
1033:
1034: my $nothing=&javascript_nothing();
1035: return (<<ENDCHECK);
1036: <script type="text/javascript">
1037: //<!-- BEGIN LON-CAPA Internal
1038: var checkwin;
1039:
1040: function spellcheckerwindow() {
1041: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1042: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="" /><\\/form>$end_page');
1043: checkwin.document.close();
1044: }
1045: // END LON-CAPA Internal -->
1046: </script>
1047: ENDCHECK
1048: }
1049:
1050: # ---------------------------------- Generate link to spell checker for a field
1051:
1052: sub spelllink {
1053: my ($form,$field)=@_;
1054: my $linktext=&mt('Check Spelling');
1055: return (<<ENDLINK);
1056: <a href="javascript:if (typeof(document.$form.onsubmit)!='undefined') { if (document.$form.onsubmit!=null) { document.$form.onsubmit();}};spellcheckerwindow();checkwin.document.forms.spellcheckform.text.value=this.document.forms.$form.$field.value;checkwin.document.forms.spellcheckform.submit();">$linktext</a>
1057: ENDLINK
1058: }
1059:
1060: # ------------------------------------------------- Output headers for HTMLArea
1061:
1062: {
1063: my @htmlareafields;
1064: sub init_htmlareafields {
1065: undef(@htmlareafields);
1066: }
1067:
1068: sub add_htmlareafields {
1069: my (@newfields) = @_;
1070: push(@htmlareafields,@newfields);
1071: }
1072:
1073: sub get_htmlareafields {
1074: return @htmlareafields;
1075: }
1076: }
1077:
1078: sub htmlareaheaders {
1079: if (&htmlareablocked()) { return ''; }
1080: unless (&htmlareabrowser()) { return ''; }
1081: my $lang='en';
1082: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1083: $lang=&mt('htmlarea_lang');
1084: }
1085: return (<<ENDHEADERS);
1086: <script type="text/javascript">
1087: _editor_url='/htmlarea/';
1088: _editor_lang='$lang';
1089: </script>
1090: <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
1091: ENDHEADERS
1092: }
1093:
1094: # ------------------------------------------------- Activate additional buttons
1095:
1096: sub htmlareaaddbuttons {
1097: if (&htmlareablocked()) { return ''; }
1098: unless (&htmlareabrowser()) { return ''; }
1099: return (<<ENDADDBUTTON);
1100: var config=new HTMLArea.Config();
1101: config.registerButton('ed_math','LaTeX Inline',
1102: '/htmlarea/images/ed_math.gif',false,
1103: function(editor,id) {
1104: editor.surroundHTML(' <m>\$','\$</m> ');
1105: }
1106: );
1107: config.registerButton('ed_math_eqn','LaTeX Equation',
1108: '/htmlarea/images/ed_math_eqn.gif',false,
1109: function(editor,id) {
1110: editor.surroundHTML(
1111: ' \\n<center><m>\\\\[','\\\\]</m></center>\\n ');
1112: }
1113: );
1114: config.toolbar.push(['ed_math','ed_math_eqn']);
1115: ENDADDBUTTON
1116: }
1117:
1118: # ----------------------------------------------------------------- Preferences
1119:
1120: sub disablelink {
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=off&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1126: }
1127:
1128: sub enablelink {
1129: my @fields=@_;
1130: if (defined($#fields)) {
1131: unless ($#fields>=0) { return ''; }
1132: }
1133: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1134: }
1135:
1136: # ----------------------------------------- Script to activate only some fields
1137:
1138: sub htmlareaselectactive {
1139: my @fields=@_;
1140: unless (&htmlareabrowser()) { return ''; }
1141: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1142: my $output='<script type="text/javascript" defer="1">'.
1143: &htmlareaaddbuttons();
1144: foreach(@fields) {
1145: $output.="\nHTMLArea.replace('$_',config);";
1146: }
1147: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1148: &disablelink(@fields);
1149: return $output;
1150: }
1151:
1152: # --------------------------------------------------------------------- Blocked
1153:
1154: sub htmlareablocked {
1155: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1156: return 0;
1157: }
1158:
1159: # ---------------------------------------- Browser capable of running HTMLArea?
1160:
1161: sub htmlareabrowser {
1162: return 1;
1163: }
1164:
1165: ############################################################
1166: ############################################################
1167:
1168: =pod
1169:
1170: =item breadcrumbs
1171:
1172: Compiles the previously registered breadcrumbs into an series of links.
1173: FAQ and BUG links will be placed on the left side of the table if they
1174: are defined for the last registered breadcrumb.
1175: Additionally supports a 'component', which will be displayed on the
1176: right side of the table (without a link).
1177: A link to help for the component will be included if one is specified.
1178:
1179: All inputs can be undef without problems.
1180:
1181: Inputs: $component (the large text on the right side of the table),
1182: $component_help
1183: $menulink (boolean, controls whether to include a link to /adm/menu)
1184: $helplink (if 'nohelp' don't include the orange help link)
1185: $css_class (optional name for the class to apply to the table for CSS)
1186: Returns a string containing breadcrumbs for the current page.
1187:
1188: =item clear_breadcrumbs
1189:
1190: Clears the previously stored breadcrumbs.
1191:
1192: =item add_breadcrumb
1193:
1194: Pushes a breadcrumb on the stack of crumbs.
1195:
1196: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1197: are required. If present the keys 'faq' and 'bug' will be used to provide
1198: links to the FAQ and bug sites.
1199:
1200: returns: nothing
1201:
1202: =cut
1203:
1204: ############################################################
1205: ############################################################
1206: {
1207: my @Crumbs;
1208:
1209: sub breadcrumbs {
1210: my ($component,$component_help,$menulink,$helplink,$css_class) = @_;
1211: #
1212: $css_class ||= 'LC_breadcrumbs';
1213: my $Str = "\n".'<table class="'.$css_class.'"><tr><td>';
1214: #
1215: # Make the faq and bug data cascade
1216: my $faq = '';
1217: my $bug = '';
1218: my $help='';
1219: # The last breadcrumb does not have a link, so handle it separately.
1220: my $last = pop(@Crumbs);
1221: #
1222: # The first one should be the course or a menu link
1223: if (!defined($menulink)) { $menulink=1; }
1224: if ($menulink) {
1225: my $description = 'Menu';
1226: if (exists($env{'request.course.id'}) &&
1227: $env{'request.course.id'} ne '') {
1228: $description =
1229: $env{'course.'.$env{'request.course.id'}.'.description'};
1230: }
1231: unshift(@Crumbs,{
1232: href =>'/adm/menu',
1233: title =>'Go to main menu',
1234: target =>'_top',
1235: text =>$description,
1236: });
1237: }
1238: my $links .=
1239: join('->',
1240: map {
1241: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1242: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1243: $help = $_->{'help'} if (exists($_->{'help'}));
1244: my $result = '<a href="'.$_->{'href'}.'" ';
1245: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1246: $result .= 'target="'.$_->{'target'}.'" ';
1247: }
1248: $result .='title="'.&mt($_->{'title'}).'">'.
1249: &mt($_->{'text'}).'</a>';
1250: $result;
1251: } @Crumbs
1252: );
1253: $links .= '->' if ($links ne '');
1254: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1255: #
1256: my $icons = '';
1257: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1258: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1259: $help = $last->{'help'} if (exists($last->{'help'}));
1260: $component_help=($component_help?$component_help:$help);
1261: # if ($faq ne '') {
1262: # $icons .= &Apache::loncommon::help_open_faq($faq);
1263: # }
1264: # if ($bug ne '') {
1265: # $icons .= &Apache::loncommon::help_open_bug($bug);
1266: # }
1267: if ($helplink ne 'nohelp') {
1268: $icons .= &Apache::loncommon::help_open_menu($component,
1269: $component_help,
1270: $faq,$bug);
1271: }
1272: if ($icons ne '') {
1273: $Str .= $icons.' ';
1274: }
1275: #
1276: $Str .= $links.'</td>';
1277: #
1278: if (defined($component)) {
1279: $Str .= '<td class="'.$css_class.'_component">'.
1280: &mt($component).'</td>';
1281: }
1282: $Str .= '</tr></table>'."\n";
1283: #
1284: # Return the @Crumbs stack to what we started with
1285: push(@Crumbs,$last);
1286: shift(@Crumbs);
1287: #
1288: return $Str;
1289: }
1290:
1291: sub clear_breadcrumbs {
1292: undef(@Crumbs);
1293: }
1294:
1295: sub add_breadcrumb {
1296: push (@Crumbs,@_);
1297: }
1298:
1299: } # End of scope for @Crumbs
1300:
1301: ############################################################
1302: ############################################################
1303:
1304: # Nested table routines.
1305: #
1306: # Routines to display form items in a multi-row table with 2 columns.
1307: # Uses nested tables to divide form elements into segments.
1308: # For examples of use see loncom/interface/lonnotify.pm
1309: #
1310: # Can be used in following order: ...
1311: # &start_pick_box()
1312: # row1
1313: # row2
1314: # row3 ... etc.
1315: # &submit_row(0
1316: # &end_pickbox()
1317: #
1318: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1319: # &status_select_row and &email_default_row
1320: #
1321: # Can also be used in following order:
1322: #
1323: # &start_pick_box()
1324: # &row_title()
1325: # &row_closure()
1326: # &row_title()
1327: # &row_closure() ... etc.
1328: # &submit_row()
1329: # &end_pick_box()
1330: #
1331: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1332: # as this routine adds a button for form submission.
1333: # &submit_row() does not require a &row_closure after it.
1334: #
1335: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1336: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1337: #
1338: # &row_title() adds a title in the left column for each segment.
1339: # &row_closure() closes a row with a 1-pixel wide black line.
1340: #
1341: # &role_select_row() provides a select box from which to choose 1 or more roles
1342: # &course_select_row provides ways of picking groups of courses
1343: # radio buttons: all, by category or by picking from a course picker pop-up
1344: # note: by category option is only displayed if a domain has implemented
1345: # selection by year, semester, department, number etc.
1346: #
1347: # &status_select_row() provides a select box from which to choose 1 or more
1348: # access types (current access, prior access, and future access)
1349: #
1350: # &email_default_row() provides text boxes for default e-mail suffixes for
1351: # different authentication types in a domain.
1352: #
1353: # &row_title() and &row_closure() are called internally by the &*_select_row
1354: # routines, but can also be called directly to start and end rows which have
1355: # needs that are not accommodated by the *_select_row() routines.
1356:
1357: sub start_pick_box {
1358: my ($table_width) = @_;
1359: my $output = <<"END";
1360: <table width="$table_width" border="0" cellpadding="0" cellspacing="1" bgcolor="#000000">
1361: <tr>
1362: <td>
1363: <table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#ffffff">
1364: <tr>
1365: <td>
1366: <table width="100%" border="0" cellpadding="0" cellspacing="1" bgcolor="#ffffff">
1367: END
1368: return $output;
1369: }
1370:
1371: sub end_pick_box {
1372: my $output = <<"END";
1373: </table>
1374: </td>
1375: </tr>
1376: </table>
1377: </td>
1378: </tr>
1379: </table>
1380: END
1381: return $output;
1382: }
1383:
1384: sub row_title {
1385: my ($col_width,$tablecolor,$title) = @_;
1386: my $output = <<"ENDONE";
1387: <tr>
1388: <td width="$col_width" bgcolor="$tablecolor">
1389: <table width="$col_width" border="0" cellpadding="8" cellspacing="0">
1390: <tr>
1391: <td align="right"><b>$title:</b>
1392: </td>
1393: </tr>
1394: </table>
1395: </td>
1396: <td width="100%" valign="top">
1397: <table width="100%" border="0" cellpadding="8" cellspacing="0">
1398: <tr>
1399: ENDONE
1400: return $output;
1401: }
1402:
1403: sub row_closure {
1404: my $output = <<"ENDTWO";
1405: </tr>
1406: </table>
1407: </td>
1408: </tr>
1409: <tr>
1410: <td width="100%" colspan="2" bgcolor="#000000">
1411: <img src="/adm/lonMisc/blackdot.gif" /><br />
1412: </td>
1413: </tr>
1414: ENDTWO
1415: return $output;
1416: }
1417:
1418: sub role_select_row {
1419: my ($roles,$col_width,$tablecolor,$title) = @_;
1420: my $output;
1421: if (defined($title)) {
1422: $output = &row_title($col_width,$tablecolor,$title);
1423: }
1424: $output .= qq| <td valign="top">
1425: <select name="roles" multiple >\n|;
1426: foreach my $role (@$roles) {
1427: my $plrole;
1428: if ($role eq 'ow') {
1429: $plrole = &mt('Course Owner');
1430: } else {
1431: $plrole=&Apache::lonnet::plaintext($role);
1432: }
1433: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1434: }
1435: $output .= qq| </select>
1436: </td>\n|;
1437: if (defined($title)) {
1438: $output .= &row_closure();
1439: }
1440: return $output;
1441: }
1442:
1443: sub course_select_row {
1444: my ($col_width,$tablecolor,$title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1445: my $output = &row_title($col_width,$tablecolor,$title);
1446: $output .= " <td>\n";
1447: $output .= qq|
1448: <script type="text/javascript" language="Javascript" >
1449: function coursePick (formname) {
1450: for (var i=0; i<formname.coursepick.length; i++) {
1451: if (formname.coursepick[i].value == 'category') {
1452: courseSet('');
1453: }
1454: if (!formname.coursepick[i].checked) {
1455: if (formname.coursepick[i].value == 'specific') {
1456: formname.coursetotal.value = 0;
1457: formname.courselist = '';
1458: }
1459: }
1460: }
1461: }
1462: function setPick (formname) {
1463: for (var i=0; i<formname.coursepick.length; i++) {
1464: if (formname.coursepick[i].value == 'category') {
1465: formname.coursepick[i].checked = true;
1466: }
1467: formname.coursetotal.value = 0;
1468: formname.courselist = '';
1469: }
1470: }
1471: </script>
1472: |;
1473: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1474: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1475: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses').'<br />';
1476: if ($totcodes > 0) {
1477: my $numtitles = @$codetitles;
1478: if ($numtitles > 0) {
1479: $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 />';
1480: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1481: '<select name="'.$$codetitles[0].
1482: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1483: ' <option value="-1" />Select'."\n";
1484: my @items = ();
1485: my @longitems = ();
1486: if ($$idlist{$$codetitles[0]} =~ /","/) {
1487: @items = split(/","/,$$idlist{$$codetitles[0]});
1488: } else {
1489: $items[0] = $$idlist{$$codetitles[0]};
1490: }
1491: if (defined($$idlist_titles{$$codetitles[0]})) {
1492: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1493: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1494: } else {
1495: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1496: }
1497: for (my $i=0; $i<@longitems; $i++) {
1498: if ($longitems[$i] eq '') {
1499: $longitems[$i] = $items[$i];
1500: }
1501: }
1502: } else {
1503: @longitems = @items;
1504: }
1505: for (my $i=0; $i<@items; $i++) {
1506: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1507: }
1508: $output .= '</select></td>';
1509: for (my $i=1; $i<$numtitles; $i++) {
1510: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1511: '<select name="'.$$codetitles[$i].
1512: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1513: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1514: '</select>'."\n".
1515: '</td>';
1516: }
1517: $output .= '</tr></table><br />';
1518: }
1519: }
1520: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."'".','."'".'dccourse'."'".','."'".'dcdomain'."'".','."'".'coursedesc'."','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br /></td>'."\n";
1521: $output .= &row_closure();
1522: return $output;
1523: }
1524:
1525: sub status_select_row {
1526: my ($types,$col_width,$tablecolor,$title) = @_;
1527: my $output;
1528: if (defined($title)) {
1529: $output = &row_title($col_width,$tablecolor,$title);
1530: }
1531: $output .= qq| <td valign="top">
1532: <select name="types" multiple>\n|;
1533: foreach my $status_type (sort(keys(%{$types}))) {
1534: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1535: }
1536: $output .= qq| </select>
1537: </td>\n|;
1538: if (defined($title)) {
1539: $output .= &row_closure();
1540: }
1541: return $output;
1542: }
1543:
1544: sub email_default_row {
1545: my ($authtypes,$col_width,$tablecolor,$title,$descrip) = @_;
1546: my $output = &row_title($col_width,$tablecolor,$title);
1547: my @rowcols = ('#eeeeee','#dddddd');
1548: $output .= ' <td>'.$descrip;
1549: $output .= &start_pick_box('');
1550: $output .= ' <tr bgcolor="'.$tablecolor.'">
1551: <td><b>'.&mt('Authentication Method').'</b></td><td align="right"><b>'.&mt('Username -> e-mail conversion').'</b></td>
1552: </tr>'."\n";
1553: my $rownum = 0;
1554: foreach my $auth (sort(keys(%{$authtypes}))) {
1555: my ($userentry,$size);
1556: my $rowiter = $rownum%2;
1557: if ($auth =~ /^krb/) {
1558: $userentry = '';
1559: $size = 25;
1560: } else {
1561: $userentry = 'username@';
1562: $size = 15;
1563: }
1564: $output .= '<tr bgcolor="'.$rowcols[$rowiter].'"><td> '.$$authtypes{$auth}.'</td><td align="right">'.$userentry.'<input type="text" name="'.$auth.'" size="'.$size.'" /></td></tr>';
1565: $rownum ++;
1566: }
1567: $output .= &end_pick_box();
1568: $output .= " <br /></td>\n";
1569: $output .= &row_closure();
1570: return $output;
1571: }
1572:
1573:
1574: sub submit_row {
1575: my ($col_width,$tablecolor,$title,$cmd,$submit_text) = @_;
1576: my $output = &row_title($col_width,$tablecolor,$title);
1577: $output .= qq|
1578: <td width="100%" valign="top" align="right">
1579: <br />
1580: <input type="hidden" name="command" value="$cmd" />
1581: <input type="submit" value="$submit_text"/>
1582: <br /><br />
1583: </td>\n|;
1584: return $output;
1585: }
1586:
1587: ##############################################
1588: ##############################################
1589:
1590: # echo_form_input
1591: #
1592: # Generates html markup to add form elements from the referrer page
1593: # as hidden form elements (values encoded) in the new page.
1594: #
1595: # Intended to support two types of use
1596: # (a) to allow backing up to earlier pages in a multi-page
1597: # form submission process using a breadcrumb trail.
1598: #
1599: # (b) to allow the current page to be reloaded with form elements
1600: # set on previous page to remain unchanged. An example would
1601: # be where the a page containing a dynamically-built table of data is
1602: # is to be redisplayed, with only the sort order of the data changed.
1603: #
1604: # Inputs:
1605: # 1. Reference to array of form elements in the submitted form on
1606: # the referrer page which are to be excluded from the echoed elements.
1607: #
1608: # 2. Reference to array of regular expressions, which if matched in the
1609: # name of the form element n the referrer page will be omitted from echo.
1610: #
1611: # Outputs: A scalar containing the html markup for the echoed form
1612: # elements (all as hidden elements, with values encoded).
1613:
1614:
1615: sub echo_form_input {
1616: my ($excluded,$regexps) = @_;
1617: my $output = '';
1618: foreach my $key (keys(%env)) {
1619: if ($key =~ /^form\.(.+)$/) {
1620: my $name = $1;
1621: my $match = 0;
1622: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1623: if (defined($regexps)) {
1624: if (@{$regexps} > 0) {
1625: foreach my $regexp (@{$regexps}) {
1626: if ($name =~ /\Q$regexp\E/) {
1627: $match = 1;
1628: last;
1629: }
1630: }
1631: }
1632: }
1633: if (!$match) {
1634: if (ref($env{$key})) {
1635: foreach my $value (@{$env{$key}}) {
1636: $value = &HTML::Entities::encode($value,'<>&"');
1637: $output .= '<input type="hidden" name="'.$name.
1638: '" value="'.$value.'" />'."\n";
1639: }
1640: } else {
1641: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1642: $output .= '<input type="hidden" name="'.$name.
1643: '" value="'.$value.'" />'."\n";
1644: }
1645: }
1646: }
1647: }
1648: }
1649: return $output;
1650: }
1651:
1652: ##############################################
1653: ##############################################
1654:
1655: # set_form_elements
1656: #
1657: # Generates javascript to set form elements to values based on
1658: # corresponding values for the same form elements when the page was
1659: # previously submitted.
1660: #
1661: # Last submission values are read from hidden form elements in referring
1662: # page which have the same name, i.e., generated by &echo_form_input().
1663: #
1664: # Intended to be called by onload event.
1665: #
1666: # Inputs:
1667: # (a) Reference to hash of echoed form elements to be set.
1668: #
1669: # In the hash, keys are the form element names, and the values are the
1670: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1671: # hidden).
1672: #
1673: # (b) Optional reference to hash of stored elements to be set.
1674: #
1675: # If the page being displayed is a page which permits modification of
1676: # previously stored data, e.g., the first page in a multi-page submission,
1677: # then if stored is supplied, form elements will be set to the last stored
1678: # values. If user supplied values are also available for the same elements
1679: # these will replace the stored values.
1680: #
1681: # Output:
1682: #
1683: # javascript function - set_form_elements() which sets form elements,
1684: # expects an argument: formname - the name of the form according to
1685: # the DOM, e.g., document.compose
1686:
1687: sub set_form_elements {
1688: my ($elements,$stored) = @_;
1689: my %values;
1690: my $output .= 'function setFormElements(courseForm) {
1691: ';
1692: if (defined($stored)) {
1693: foreach my $name (keys(%{$stored})) {
1694: if (exists($$elements{$name})) {
1695: if (ref($$stored{$name}) eq 'ARRAY') {
1696: $values{$name} = $$stored{$name};
1697: } else {
1698: @{$values{$name}} = ($$stored{$name});
1699: }
1700: }
1701: }
1702: }
1703:
1704: foreach my $key (keys(%env)) {
1705: if ($key =~ /^form\.(.+)$/) {
1706: my $name = $1;
1707: if (exists($$elements{$name})) {
1708: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1709: }
1710: }
1711: }
1712:
1713: foreach my $name (keys(%values)) {
1714: for (my $i=0; $i<@{$values{$name}}; $i++) {
1715: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1716: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1717: $values{$name}[$i] =~ s/"/\\"/g;
1718: }
1719: if ($$elements{$name} eq 'text') {
1720: my $numvalues = @{$values{$name}};
1721: if ($numvalues > 1) {
1722: my $valuestring = join('","',@{$values{$name}});
1723: $output .= qq|
1724: var textvalues = new Array ("$valuestring");
1725: var total = courseForm.$name.length;
1726: if (total > $numvalues) {
1727: total = $numvalues;
1728: }
1729: for (var i=0; i<total; i++) {
1730: courseForm.$name\[i].value = textvalues[i];
1731: }
1732: |;
1733: } else {
1734: $output .= qq|
1735: courseForm.$name.value = "$values{$name}[0]";
1736: |;
1737: }
1738: } else {
1739: $output .= qq|
1740: var elementLength = courseForm.$name.length;
1741: if (elementLength==undefined) {
1742: |;
1743: foreach my $value (@{$values{$name}}) {
1744: if ($$elements{$name} eq 'selectbox') {
1745: $output .= qq|
1746: if (courseForm.$name.options[0].value == "$value") {
1747: courseForm.$name.options[0].selected = true;
1748: }|;
1749: } elsif (($$elements{$name} eq 'radio') ||
1750: ($$elements{$name} eq 'checkbox')) {
1751: $output .= qq|
1752: if (courseForm.$name.value == "$value") {
1753: courseForm.$name.checked = true;
1754: }|;
1755: }
1756: }
1757: $output .= qq|
1758: }
1759: else {
1760: for (var i=0; i<courseForm.$name.length; i++) {
1761: |;
1762: if ($$elements{$name} eq 'selectbox') {
1763: $output .= qq|
1764: courseForm.$name.options[i].selected = false;|;
1765: } elsif (($$elements{$name} eq 'radio') ||
1766: ($$elements{$name} eq 'checkbox')) {
1767: $output .= qq|
1768: courseForm.$name\[i].checked = false;|;
1769: }
1770: $output .= qq|
1771: }
1772: for (var j=0; j<courseForm.$name.length; j++) {
1773: |;
1774: foreach my $value (@{$values{$name}}) {
1775: if ($$elements{$name} eq 'selectbox') {
1776: $output .= qq|
1777: if (courseForm.$name.options[j].value == "$value") {
1778: courseForm.$name.options[j].selected = true;
1779: }|;
1780: } elsif (($$elements{$name} eq 'radio') ||
1781: ($$elements{$name} eq 'checkbox')) {
1782: $output .= qq|
1783: if (courseForm.$name\[j].value == "$value") {
1784: courseForm.$name\[j].checked = true;
1785: }|;
1786: }
1787: }
1788: $output .= qq|
1789: }
1790: }
1791: |;
1792: }
1793: }
1794: $output .= "
1795: }\n";
1796: return $output;
1797: }
1798:
1799: 1;
1800:
1801: __END__
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