1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.129 2006/05/29 16:01:22 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ######################################################################
29: ######################################################################
30:
31: =pod
32:
33: =head1 NAME
34:
35: Apache::lonhtmlcommon - routines to do common html things
36:
37: =head1 SYNOPSIS
38:
39: Referenced by other mod_perl Apache modules.
40:
41: =head1 INTRODUCTION
42:
43: lonhtmlcommon is a collection of subroutines used to present information
44: in a consistent html format, or provide other functionality related to
45: html.
46:
47: =head2 General Subroutines
48:
49: =over 4
50:
51: =cut
52:
53: ######################################################################
54: ######################################################################
55:
56: package Apache::lonhtmlcommon;
57:
58: use strict;
59: use Time::Local;
60: use Time::HiRes;
61: use Apache::lonlocal;
62: use Apache::lonnet;
63:
64: ##############################################
65: ##############################################
66:
67: =pod
68:
69: =item authorbombs
70:
71: =cut
72:
73: ##############################################
74: ##############################################
75:
76: sub authorbombs {
77: my $url=shift;
78: $url=&Apache::lonnet::declutter($url);
79: my ($udom,$uname)=($url=~/^(\w+)\/(\w+)\//);
80: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
81: foreach (keys %bombs) {
82: if ($_=~/^$udom\/$uname\//) {
83: return '<a href="/adm/bombs/'.$url.
84: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" border="0" /></a>'.
85: &Apache::loncommon::help_open_topic('About_Bombs');
86: }
87: }
88: return '';
89: }
90:
91: ##############################################
92: ##############################################
93:
94: sub recent_filename {
95: my $area=shift;
96: return 'nohist_recent_'.&Apache::lonnet::escape($area);
97: }
98:
99: sub store_recent {
100: my ($area,$name,$value)=@_;
101: my $file=&recent_filename($area);
102: my %recent=&Apache::lonnet::dump($file);
103: if (scalar(keys(%recent))>20) {
104: # remove oldest value
105: my $oldest=time;
106: my $delkey='';
107: foreach (keys %recent) {
108: my $thistime=(split(/\&/,$recent{$_}))[0];
109: if ($thistime<$oldest) {
110: $oldest=$thistime;
111: $delkey=$_;
112: }
113: }
114: &Apache::lonnet::del($file,[$delkey]);
115: }
116: # store new value
117: &Apache::lonnet::put($file,{ $name =>
118: time.'&'.&Apache::lonnet::escape($value) });
119: }
120:
121: sub remove_recent {
122: my ($area,$names)=@_;
123: my $file=&recent_filename($area);
124: return &Apache::lonnet::del($file,$names);
125: }
126:
127: sub select_recent {
128: my ($area,$fieldname,$event)=@_;
129: my %recent=&Apache::lonnet::dump(&recent_filename($area));
130: my $return="\n<select name='$fieldname'".
131: ($event?" onchange='$event'":'').
132: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
133: foreach (sort keys %recent) {
134: unless ($_=~/^error\:/) {
135: my $escaped = &Apache::loncommon::escape_url($_);
136: $return.="\n<option value='$escaped'>".
137: &Apache::lonnet::unescape((split(/\&/,$recent{$_}))[1]).
138: '</option>';
139: }
140: }
141: $return.="\n</select>\n";
142: return $return;
143: }
144:
145: sub get_recent {
146: my ($area, $n) = @_;
147: my %recent=&Apache::lonnet::dump(&recent_filename($area));
148:
149: # Create hash with key as time and recent as value
150: my %time_hash = ();
151: foreach (keys %recent) {
152: my $thistime=(split(/\&/,$recent{$_}))[0];
153: $time_hash{$thistime} = $_;
154: }
155:
156: # Sort by decreasing time and return key value pairs
157: my %return_hash = ();
158: my $idx = 1;
159: foreach (reverse sort keys %time_hash) {
160: $return_hash{$time_hash{$_}} =
161: &Apache::lonnet::unescape((split(/\&/,$recent{$_}))[1]);
162: if ($n && ($idx++ >= $n)) {last;}
163: }
164:
165: return %return_hash;
166: }
167:
168:
169:
170: =pod
171:
172: =item textbox
173:
174: =cut
175:
176: ##############################################
177: ##############################################
178: sub textbox {
179: my ($name,$value,$size,$special) = @_;
180: $size = 40 if (! defined($size));
181: $value = &HTML::Entities::encode($value,'<>&"');
182: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
183: 'value="'.$value.'" '.$special.' />';
184: return $Str;
185: }
186:
187: ##############################################
188: ##############################################
189:
190: =pod
191:
192: =item checkbox
193:
194: =cut
195:
196: ##############################################
197: ##############################################
198: sub checkbox {
199: my ($name,$checked,$value) = @_;
200: my $Str = '<input type="checkbox" name="'.$name.'" ';
201: if (defined($value)) {
202: $Str .= 'value="'.$value.'"';
203: }
204: if ($checked) {
205: $Str .= ' checked="1"';
206: }
207: $Str .= ' />';
208: return $Str;
209: }
210:
211:
212: =pod
213:
214: =item radiobutton
215:
216: =cut
217:
218: ##############################################
219: ##############################################
220: sub radio {
221: my ($name,$checked,$value) = @_;
222: my $Str = '<input type="radio" name="'.$name.'" ';
223: if (defined($value)) {
224: $Str .= 'value="'.$value.'"';
225: }
226: if ($checked eq $value) {
227: $Str .= ' checked="1"';
228: }
229: $Str .= ' />';
230: return $Str;
231: }
232:
233: ##############################################
234: ##############################################
235:
236: =pod
237:
238: =item &date_setter
239:
240: &date_setter returns html and javascript for a compact date-setting form.
241: To retrieve values from it, use &get_date_from_form().
242:
243: Inputs
244:
245: =over 4
246:
247: =item $dname
248:
249: The name to prepend to the form elements.
250: The form elements defined will be dname_year, dname_month, dname_day,
251: dname_hour, dname_min, and dname_sec.
252:
253: =item $currentvalue
254:
255: The current setting for this time parameter. A unix format time
256: (time in seconds since the beginning of Jan 1st, 1970, GMT.
257: An undefined value is taken to indicate the value is the current time.
258: Also, to be explicit, a value of 'now' also indicates the current time.
259:
260: =item $special
261:
262: Additional html/javascript to be associated with each element in
263: the date_setter. See lonparmset for example usage.
264:
265: =item $includeempty
266:
267: =item $state
268:
269: Specifies the initial state of the form elements. Either 'disabled' or empty.
270: Defaults to empty, which indiciates the form elements are not disabled.
271:
272: =back
273:
274: Bugs
275:
276: The method used to restrict user input will fail in the year 2400.
277:
278: =cut
279:
280: ##############################################
281: ##############################################
282: sub date_setter {
283: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
284: $no_hh_mm_ss,$defhour,$defmin,$defsec) = @_;
285: my $wasdefined=1;
286: if (! defined($state) || $state ne 'disabled') {
287: $state = '';
288: }
289: if (! defined($no_hh_mm_ss)) {
290: $no_hh_mm_ss = 0;
291: }
292: if ($currentvalue eq 'now') {
293: $currentvalue=time;
294: }
295: if ((!defined($currentvalue)) || ($currentvalue eq '')) {
296: $wasdefined=0;
297: if ($includeempty) {
298: $currentvalue = 0;
299: } else {
300: $currentvalue = time;
301: }
302: }
303: # other potentially useful values: wkday,yrday,is_daylight_savings
304: my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
305: if ($currentvalue) {
306: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
307: localtime($currentvalue);
308: $year += 1900;
309: }
310: unless ($wasdefined) {
311: if (($defhour) || ($defmin) || ($defsec)) {
312: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
313: localtime(time);
314: $year += 1900;
315: $sec=($defsec?$defsec:0);
316: $min=($defmin?$defmin:0);
317: $hour=($defhour?$defhour:0);
318: } elsif (!$includeempty) {
319: $sec=0;
320: $min=0;
321: $hour=0;
322: }
323: }
324: my $result = "\n<!-- $dname date setting form -->\n";
325: $result .= <<ENDJS;
326: <script language="Javascript">
327: function $dname\_checkday() {
328: var day = document.$formname.$dname\_day.value;
329: var month = document.$formname.$dname\_month.value;
330: var year = document.$formname.$dname\_year.value;
331: var valid = true;
332: if (day < 1) {
333: document.$formname.$dname\_day.value = 1;
334: }
335: if (day > 31) {
336: document.$formname.$dname\_day.value = 31;
337: }
338: if ((month == 1) || (month == 3) || (month == 5) ||
339: (month == 7) || (month == 8) || (month == 10) ||
340: (month == 12)) {
341: if (day > 31) {
342: document.$formname.$dname\_day.value = 31;
343: day = 31;
344: }
345: } else if (month == 2 ) {
346: if ((year % 4 == 0) && (year % 100 != 0)) {
347: if (day > 29) {
348: document.$formname.$dname\_day.value = 29;
349: }
350: } else if (day > 29) {
351: document.$formname.$dname\_day.value = 28;
352: }
353: } else if (day > 30) {
354: document.$formname.$dname\_day.value = 30;
355: }
356: }
357:
358: function $dname\_disable() {
359: document.$formname.$dname\_month.disabled=true;
360: document.$formname.$dname\_day.disabled=true;
361: document.$formname.$dname\_year.disabled=true;
362: document.$formname.$dname\_hour.disabled=true;
363: document.$formname.$dname\_minute.disabled=true;
364: document.$formname.$dname\_second.disabled=true;
365: }
366:
367: function $dname\_enable() {
368: document.$formname.$dname\_month.disabled=false;
369: document.$formname.$dname\_day.disabled=false;
370: document.$formname.$dname\_year.disabled=false;
371: document.$formname.$dname\_hour.disabled=false;
372: document.$formname.$dname\_minute.disabled=false;
373: document.$formname.$dname\_second.disabled=false;
374: }
375:
376: function $dname\_opencalendar() {
377: if (! document.$formname.$dname\_month.disabled) {
378: var calwin=window.open(
379: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
380: document.$formname.$dname\_month.value+"&year="+
381: document.$formname.$dname\_year.value,
382: "LONCAPAcal",
383: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
384: }
385:
386: }
387: </script>
388: ENDJS
389: $result .= ' <nobr>';
390: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
391: # Month
392: my @Months = qw/January February March April May June
393: July August September October November December/;
394: # Pad @Months with a bogus value to make indexing easier
395: unshift(@Months,'If you can read this an error occurred');
396: if ($includeempty) { $monthselector.="<option value=''></option>"; }
397: for(my $m = 1;$m <=$#Months;$m++) {
398: $monthselector .= qq{ <option value="$m" };
399: $monthselector .= "selected " if ($m-1 eq $month);
400: $monthselector .= '> '.&mt($Months[$m]).' </option>';
401: }
402: $monthselector.= ' </select>';
403: # Day
404: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
405: # Year
406: my $yearselector = qq{<input type="year" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
407: #
408: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
409: if ($includeempty) {
410: $hourselector.=qq{<option value=''></option>};
411: }
412: for (my $h = 0;$h<24;$h++) {
413: $hourselector .= qq{<option value="$h" };
414: $hourselector .= "selected " if (defined($hour) && $hour == $h);
415: $hourselector .= ">";
416: my $timest='';
417: if ($h == 0) {
418: $timest .= "12 am";
419: } elsif($h == 12) {
420: $timest .= "12 noon";
421: } elsif($h < 12) {
422: $timest .= "$h am";
423: } else {
424: $timest .= $h-12 ." pm";
425: }
426: $timest=&mt($timest);
427: $hourselector .= $timest." </option>\n";
428: }
429: $hourselector .= " </select>\n";
430: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
431: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
432: my $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
433: #
434: if ($no_hh_mm_ss) {
435: $result .= &mt('[_1] [_2] [_3] [_4]Select Date[_5]',
436: $monthselector,$dayselector,$yearselector,
437: $cal_link,'</a>');
438: } else {
439: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s [_7]Select Date[_8]',
440: $monthselector,$dayselector,$yearselector,
441: $hourselector,$minuteselector,$secondselector,
442: $cal_link,'</a>');
443: }
444: $result .= "</nobr>\n<!-- end $dname date setting form -->\n";
445: return $result;
446: }
447:
448: ##############################################
449: ##############################################
450:
451: =pod
452:
453: =item &get_date_from_form
454:
455: get_date_from_form retrieves the date specified in an &date_setter form.
456:
457: Inputs:
458:
459: =over 4
460:
461: =item $dname
462:
463: The name passed to &datesetter, which prefixes the form elements.
464:
465: =item $defaulttime
466:
467: The unix time to use as the default in case of poor inputs.
468:
469: =back
470:
471: Returns: Unix time represented in the form.
472:
473: =cut
474:
475: ##############################################
476: ##############################################
477: sub get_date_from_form {
478: my ($dname) = @_;
479: my ($sec,$min,$hour,$day,$month,$year);
480: #
481: if (defined($env{'form.'.$dname.'_second'})) {
482: my $tmpsec = $env{'form.'.$dname.'_second'};
483: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
484: $sec = $tmpsec;
485: }
486: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
487: } else {
488: $sec = 0;
489: }
490: if (defined($env{'form.'.$dname.'_minute'})) {
491: my $tmpmin = $env{'form.'.$dname.'_minute'};
492: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
493: $min = $tmpmin;
494: }
495: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
496: } else {
497: $min = 0;
498: }
499: if (defined($env{'form.'.$dname.'_hour'})) {
500: my $tmphour = $env{'form.'.$dname.'_hour'};
501: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
502: $hour = $tmphour;
503: }
504: } else {
505: $hour = 0;
506: }
507: if (defined($env{'form.'.$dname.'_day'})) {
508: my $tmpday = $env{'form.'.$dname.'_day'};
509: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
510: $day = $tmpday;
511: }
512: }
513: if (defined($env{'form.'.$dname.'_month'})) {
514: my $tmpmonth = $env{'form.'.$dname.'_month'};
515: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
516: $month = $tmpmonth - 1;
517: }
518: }
519: if (defined($env{'form.'.$dname.'_year'})) {
520: my $tmpyear = $env{'form.'.$dname.'_year'};
521: if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
522: $year = $tmpyear - 1900;
523: }
524: }
525: if (($year<70) || ($year>137)) { return undef; }
526: if (defined($sec) && defined($min) && defined($hour) &&
527: defined($day) && defined($month) && defined($year) &&
528: eval('&timelocal($sec,$min,$hour,$day,$month,$year)')) {
529: return &timelocal($sec,$min,$hour,$day,$month,$year);
530: } else {
531: return undef;
532: }
533: }
534:
535: ##############################################
536: ##############################################
537:
538: =pod
539:
540: =item &pjump_javascript_definition()
541:
542: Returns javascript defining the 'pjump' function, which opens up a
543: parameter setting wizard.
544:
545: =cut
546:
547: ##############################################
548: ##############################################
549: sub pjump_javascript_definition {
550: my $Str = <<END;
551: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
552: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
553: +"&value="+escape(value)+"&marker="+escape(marker)
554: +"&return="+escape(ret)
555: +"&call="+escape(call)+"&name="+escape(dis)
556: +"&defhour="+escape(hour)+"&defmin="+escape(min)
557: +"&defsec="+escape(sec),"LONCAPAparms",
558: "height=350,width=350,scrollbars=no,menubar=no");
559: }
560: END
561: return $Str;
562: }
563:
564: ##############################################
565: ##############################################
566:
567: =pod
568:
569: =item &javascript_nothing()
570:
571: Return an appropriate null for the users browser. This is used
572: as the first arguement for window.open calls when you want a blank
573: window that you can then write to.
574:
575: =cut
576:
577: ##############################################
578: ##############################################
579: sub javascript_nothing {
580: # mozilla and other browsers work with "''", but IE on mac does not.
581: my $nothing = "''";
582: my $user_browser;
583: my $user_os;
584: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
585: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
586: if (! defined($user_browser) || ! defined($user_os)) {
587: (undef,$user_browser,undef,undef,undef,$user_os) =
588: &Apache::loncommon::decode_user_agent();
589: }
590: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
591: $nothing = "'javascript:void(0);'";
592: }
593: return $nothing;
594: }
595:
596: ##############################################
597: ##############################################
598: sub javascript_docopen {
599: # safari does not understand document.open() and loads "text/html"
600: my $nothing = "''";
601: my $user_browser;
602: my $user_os;
603: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
604: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
605: if (! defined($user_browser) || ! defined($user_os)) {
606: (undef,$user_browser,undef,undef,undef,$user_os) =
607: &Apache::loncommon::decode_user_agent();
608: }
609: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
610: $nothing = "document.clear()";
611: } else {
612: $nothing = "document.open('text/html','replace')";
613: }
614: return $nothing;
615: }
616:
617:
618: ##############################################
619: ##############################################
620:
621: =pod
622:
623: =item &StatusOptions()
624:
625: Returns html for a selection box which allows the user to choose the
626: enrollment status of students. The selection box name is 'Status'.
627:
628: Inputs:
629:
630: $status: the currently selected status. If undefined the value of
631: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
632: is used.
633:
634: $formname: The name of the form. If defined the onchange attribute of
635: the selection box is set to document.$formname.submit().
636:
637: $size: the size (number of lines) of the selection box.
638:
639: $onchange: javascript to use when the value is changed. Enclosed in
640: double quotes, ""s, not single quotes.
641:
642: Returns: a perl string as described.
643:
644: =cut
645:
646: ##############################################
647: ##############################################
648: sub StatusOptions {
649: my ($status, $formName,$size,$onchange)=@_;
650: $size = 1 if (!defined($size));
651: if (! defined($status)) {
652: $status = 'Active';
653: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
654: }
655:
656: my $OpSel1 = '';
657: my $OpSel2 = '';
658: my $OpSel3 = '';
659:
660: if($status eq 'Any') { $OpSel3 = ' selected'; }
661: elsif($status eq 'Expired' ) { $OpSel2 = ' selected'; }
662: else { $OpSel1 = ' selected'; }
663:
664: my $Str = '';
665: $Str .= '<select name="Status"';
666: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
667: $Str .= ' onchange="document.'.$formName.'.submit()"';
668: }
669: if (defined($onchange)) {
670: $Str .= ' onchange="'.$onchange.'"';
671: }
672: $Str .= ' size="'.$size.'" ';
673: $Str .= '>'."\n";
674: $Str .= '<option value="Active" '.$OpSel1.'>'.
675: &mt('Currently Enrolled').'</option>'."\n";
676: $Str .= '<option value="Expired" '.$OpSel2.'>'.
677: &mt('Previously Enrolled').'</option>'."\n";
678: $Str .= '<option value="Any" '.$OpSel3.'>'.
679: &mt('Any Enrollment Status').'</option>'."\n";
680: $Str .= '</select>'."\n";
681: }
682:
683: ########################################################
684: ########################################################
685:
686: =pod
687:
688: =item Progess Window Handling Routines
689:
690: These routines handle the creation, update, increment, and closure of
691: progress windows. The progress window reports to the user the number
692: of items completed and an estimate of the time required to complete the rest.
693:
694: =over 4
695:
696:
697: =item &Create_PrgWin
698:
699: Writes javascript to the client to open a progress window and returns a
700: data structure used for bookkeeping.
701:
702: Inputs
703:
704: =over 4
705:
706: =item $r Apache request
707:
708: =item $title The title of the progress window
709:
710: =item $heading A description (usually 1 line) of the process being initiated.
711:
712: =item $number_to_do The total number of items being processed.
713:
714: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
715: specified)
716:
717: =item $width Specify the width in charaters of the input field.
718:
719: =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
720:
721: =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
722:
723: =back
724:
725: Returns a hash containing the progress state data structure.
726:
727:
728: =item &Update_PrgWin
729:
730: Updates the text in the progress indicator. Does not increment the count.
731: See &Increment_PrgWin.
732:
733: Inputs:
734:
735: =over 4
736:
737: =item $r Apache request
738:
739: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
740:
741: =item $displaystring The string to write to the status indicator
742:
743: =back
744:
745: Returns: none
746:
747:
748: =item Increment_PrgWin
749:
750: Increment the count of items completed for the progress window by 1.
751:
752: Inputs:
753:
754: =over 4
755:
756: =item $r Apache request
757:
758: =item $prog_state Pointer to the data structure returned by Create_PrgWin
759:
760: =item $extraInfo A description of the items being iterated over. Typically
761: 'student'.
762:
763: =back
764:
765: Returns: none
766:
767:
768: =item Close_PrgWin
769:
770: Closes the progress window.
771:
772: Inputs:
773:
774: =over 4
775:
776: =item $r Apache request
777:
778: =item $prog_state Pointer to the data structure returned by Create_PrgWin
779:
780: =back
781:
782: Returns: none
783:
784: =back
785:
786: =cut
787:
788: ########################################################
789: ########################################################
790:
791: my $uniq=0;
792: sub get_uniq_name {
793: $uniq++;
794: return 'uniquename'.$uniq;
795: }
796:
797: # Create progress
798: sub Create_PrgWin {
799: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
800: $inputname)=@_;
801: if (!defined($type)) { $type='popup'; }
802: if (!defined($width)) { $width=55; }
803: my %prog_state;
804: $prog_state{'type'}=$type;
805: if ($type eq 'popup') {
806: $prog_state{'window'}='popwin';
807: my $start_page =
808: &Apache::loncommon::start_page($title,undef,
809: {'only_body' => 1,
810: 'bgcolor' => '#88DDFF',
811: 'js_ready' => 1});
812: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
813:
814: #the whole function called through timeout is due to issues
815: #in mozilla Read BUG #2665 if you want to know the whole story
816: &r_print($r,'<script type="text/javascript">'.
817: "var popwin;
818: function openpopwin () {
819: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
820: "popwin.document.writeln(\'".$start_page.
821: "<h4>$heading</h4>".
822: "<form name=popremain>".
823: '<input type="text" size="'.$width.'" name="remaining" value="'.
824: &mt('Starting').'"></form>'.$end_page.
825: "\');".
826: "popwin.document.close();}".
827: "\nwindow.setTimeout(openpopwin,0)</script>");
828: $prog_state{'formname'}='popremain';
829: $prog_state{'inputname'}="remaining";
830: } elsif ($type eq 'inline') {
831: $prog_state{'window'}='window';
832: if (!$formname) {
833: $prog_state{'formname'}=&get_uniq_name();
834: &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
835: } else {
836: $prog_state{'formname'}=$formname;
837: }
838: if (!$inputname) {
839: $prog_state{'inputname'}=&get_uniq_name();
840: &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
841: '" size="'.$width.'" />');
842: } else {
843: $prog_state{'inputname'}=$inputname;
844:
845: }
846: if (!$formname) { &r_print($r,'</form>'); }
847: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
848: }
849:
850: $prog_state{'done'}=0;
851: $prog_state{'firststart'}=&Time::HiRes::time();
852: $prog_state{'laststart'}=&Time::HiRes::time();
853: $prog_state{'max'}=$number_to_do;
854:
855: return %prog_state;
856: }
857:
858: # update progress
859: sub Update_PrgWin {
860: my ($r,$prog_state,$displayString)=@_;
861: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
862: $$prog_state{'formname'}.'.'.
863: $$prog_state{'inputname'}.'.value="'.
864: $displayString.'";</script>');
865: $$prog_state{'laststart'}=&Time::HiRes::time();
866: }
867:
868: # increment progress state
869: sub Increment_PrgWin {
870: my ($r,$prog_state,$extraInfo)=@_;
871: $$prog_state{'done'}++;
872: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
873: $$prog_state{'done'} *
874: ($$prog_state{'max'}-$$prog_state{'done'});
875: $time_est = int($time_est);
876: #
877: my $min = int($time_est/60);
878: my $sec = $time_est % 60;
879: #
880: my $str;
881: if ($min == 0 && $sec > 1) {
882: $str = '[_2] seconds';
883: } elsif ($min == 1 && $sec > 1) {
884: $str = '1 minute [_2] seconds';
885: } elsif ($min == 1 && $sec < 2) {
886: $str = '1 minute';
887: } elsif ($min < 10 && $sec > 1) {
888: $str = '[_1] minutes, [_2] seconds';
889: } elsif ($min >= 10 || $sec < 2) {
890: $str = '[_1] minutes';
891: }
892: $time_est = &mt($str,$min,$sec);
893: #
894: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
895: if ($lasttime > 9) {
896: $lasttime = int($lasttime);
897: } elsif ($lasttime < 0.01) {
898: $lasttime = 0;
899: } else {
900: $lasttime = sprintf("%3.2f",$lasttime);
901: }
902: if ($lasttime == 1) {
903: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
904: } else {
905: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
906: }
907: #
908: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
909: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
910: if (! defined($user_browser) || ! defined($user_os)) {
911: (undef,$user_browser,undef,undef,undef,$user_os) =
912: &Apache::loncommon::decode_user_agent();
913: }
914: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
915: $lasttime = '';
916: }
917: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
918: $$prog_state{'formname'}.'.'.
919: $$prog_state{'inputname'}.'.value="'.
920: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
921: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
922: $$prog_state{'laststart'}=&Time::HiRes::time();
923: }
924:
925: # close Progress Line
926: sub Close_PrgWin {
927: my ($r,$prog_state)=@_;
928: if ($$prog_state{'type'} eq 'popup') {
929: &r_print($r,'<script>popwin.close()</script>'."\n");
930: } elsif ($$prog_state{'type'} eq 'inline') {
931: &Update_PrgWin($r,$prog_state,&mt('Done'));
932: }
933: undef(%$prog_state);
934: }
935:
936: sub r_print {
937: my ($r,$to_print)=@_;
938: if ($r) {
939: $r->print($to_print);
940: $r->rflush();
941: } else {
942: print($to_print);
943: }
944: }
945:
946: # ------------------------------------------------------- Puts directory header
947:
948: sub crumbs {
949: my ($uri,$target,$prefix,$form,$size,$noformat)=@_;
950: if (! defined($size)) {
951: $size = '+2';
952: }
953: if ($target) {
954: $target = ' target="'.
955: &Apache::loncommon::escape_single($target).'"';
956: }
957: my $output='';
958: unless ($noformat) { $output.='<br /><tt><b>'; }
959: $output.='<font size="'.$size.'">'.$prefix.'/';
960: if ($env{'user.adv'}) {
961: my $path=$prefix.'/';
962: foreach my $dir (split('/',$uri)) {
963: if (! $dir) { next; }
964: $path .= $dir;
965: unless ($path eq $uri) { $path.='/'; }
966: my $linkpath = &Apache::loncommon::escape_single($path);
967: if ($form) {
968: $linkpath=
969: qq{javascript:$form.action='$linkpath';$form.submit();};
970: }
971: $output.=qq{<a href="$linkpath" $target>$dir</a>/};
972: }
973: } else {
974: $output.=$uri;
975: }
976: unless ($uri=~/\/$/) { $output=~s/\/$//; }
977: return $output.'</font>'.($noformat?'':'</b></tt><br />');
978: }
979:
980: # --------------------- A function that generates a window for the spellchecker
981:
982: sub spellheader {
983: my $start_page=
984: &Apache::loncommon::start_page('Speller Suggestions',undef,
985: {'only_body' => 1,
986: 'js_ready' => 1,
987: 'bgcolor' => '#DDDDDD',});
988: my $end_page=
989: &Apache::loncommon::end_page({'js_ready' => 1});
990:
991: my $nothing=&javascript_nothing();
992: return (<<ENDCHECK);
993: <script type="text/javascript">
994: //<!-- BEGIN LON-CAPA Internal
995: var checkwin;
996:
997: function spellcheckerwindow() {
998: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
999: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="" /></form>$end_page');
1000: checkwin.document.close();
1001: }
1002: // END LON-CAPA Internal -->
1003: </script>
1004: ENDCHECK
1005: }
1006:
1007: # ---------------------------------- Generate link to spell checker for a field
1008:
1009: sub spelllink {
1010: my ($form,$field)=@_;
1011: my $linktext=&mt('Check Spelling');
1012: return (<<ENDLINK);
1013: <a href="javascript:if (typeof(document.$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>
1014: ENDLINK
1015: }
1016:
1017: # ------------------------------------------------- Output headers for HTMLArea
1018:
1019: {
1020: my @htmlareafields;
1021: sub init_htmlareafields {
1022: undef(@htmlareafields);
1023: }
1024:
1025: sub add_htmlareafields {
1026: my (@newfields) = @_;
1027: push(@htmlareafields,@newfields);
1028: }
1029:
1030: sub get_htmlareafields {
1031: return @htmlareafields;
1032: }
1033: }
1034:
1035: sub htmlareaheaders {
1036: if (&htmlareablocked()) { return ''; }
1037: unless (&htmlareabrowser()) { return ''; }
1038: my $lang='en';
1039: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1040: $lang=&mt('htmlarea_lang');
1041: }
1042: return (<<ENDHEADERS);
1043: <script type="text/javascript">
1044: _editor_url='/htmlarea/';
1045: _editor_lang='$lang';
1046: </script>
1047: <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
1048: ENDHEADERS
1049: }
1050:
1051: # ------------------------------------------------- Activate additional buttons
1052:
1053: sub htmlareaaddbuttons {
1054: if (&htmlareablocked()) { return ''; }
1055: unless (&htmlareabrowser()) { return ''; }
1056: return (<<ENDADDBUTTON);
1057: var config=new HTMLArea.Config();
1058: config.registerButton('ed_math','LaTeX Inline',
1059: '/htmlarea/images/ed_math.gif',false,
1060: function(editor,id) {
1061: editor.surroundHTML(' <m>\$','\$</m> ');
1062: }
1063: );
1064: config.registerButton('ed_math_eqn','LaTeX Equation',
1065: '/htmlarea/images/ed_math_eqn.gif',false,
1066: function(editor,id) {
1067: editor.surroundHTML(
1068: ' \\n<center><m>\\\\[','\\\\]</m></center>\\n ');
1069: }
1070: );
1071: config.toolbar.push(['ed_math','ed_math_eqn']);
1072: ENDADDBUTTON
1073: }
1074:
1075: # ----------------------------------------------------------------- Preferences
1076:
1077: sub disablelink {
1078: my @fields=@_;
1079: if (defined($#fields)) {
1080: unless ($#fields>=0) { return ''; }
1081: }
1082: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&Apache::lonnet::escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1083: }
1084:
1085: sub enablelink {
1086: my @fields=@_;
1087: if (defined($#fields)) {
1088: unless ($#fields>=0) { return ''; }
1089: }
1090: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&Apache::lonnet::escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1091: }
1092:
1093: # ----------------------------------------- Script to activate only some fields
1094:
1095: sub htmlareaselectactive {
1096: my @fields=@_;
1097: unless (&htmlareabrowser()) { return ''; }
1098: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1099: my $output='<script type="text/javascript" defer="1">'.
1100: &htmlareaaddbuttons();
1101: foreach(@fields) {
1102: $output.="\nHTMLArea.replace('$_',config);";
1103: }
1104: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1105: &disablelink(@fields);
1106: return $output;
1107: }
1108:
1109: # --------------------------------------------------------------------- Blocked
1110:
1111: sub htmlareablocked {
1112: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1113: return 0;
1114: }
1115:
1116: # ---------------------------------------- Browser capable of running HTMLArea?
1117:
1118: sub htmlareabrowser {
1119: return 1;
1120: }
1121:
1122: ############################################################
1123: ############################################################
1124:
1125: =pod
1126:
1127: =item breadcrumbs
1128:
1129: Compiles the previously registered breadcrumbs into an series of links.
1130: FAQ and BUG links will be placed on the left side of the table if they
1131: are defined for the last registered breadcrumb.
1132: Additionally supports a 'component', which will be displayed on the
1133: right side of the table (without a link).
1134: A link to help for the component will be included if one is specified.
1135:
1136: All inputs can be undef without problems.
1137:
1138: Inputs: $color (the background color of the table returned),
1139: $component (the large text on the right side of the table),
1140: $component_help
1141: $function (role to get colors from)
1142: $domain (domian of role)
1143: $menulink (boolean, controls whether to include a link to /adm/menu)
1144:
1145: Returns a string containing breadcrumbs for the current page.
1146:
1147: =item clear_breadcrumbs
1148:
1149: Clears the previously stored breadcrumbs.
1150:
1151: =item add_breadcrumb
1152:
1153: Pushes a breadcrumb on the stack of crumbs.
1154:
1155: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1156: are required. If present the keys 'faq' and 'bug' will be used to provide
1157: links to the FAQ and bug sites.
1158:
1159: returns: nothing
1160:
1161: =cut
1162:
1163: ############################################################
1164: ############################################################
1165: {
1166: my @Crumbs;
1167:
1168: sub breadcrumbs {
1169: my ($component,$component_help,$menulink,$helplink) = @_;
1170: #
1171: my $Str = "\n".'<table id="LC_breadcrumbs"><tr><td>';
1172: #
1173: # Make the faq and bug data cascade
1174: my $faq = '';
1175: my $bug = '';
1176: my $help='';
1177: # The last breadcrumb does not have a link, so handle it separately.
1178: my $last = pop(@Crumbs);
1179: #
1180: # The first one should be the course or a menu link
1181: if (!defined($menulink)) { $menulink=1; }
1182: if ($menulink) {
1183: my $description = 'Menu';
1184: if (exists($env{'request.course.id'}) &&
1185: $env{'request.course.id'} ne '') {
1186: $description =
1187: $env{'course.'.$env{'request.course.id'}.'.description'};
1188: }
1189: unshift(@Crumbs,{
1190: href =>'/adm/menu',
1191: title =>'Go to main menu',
1192: target =>'_top',
1193: text =>$description,
1194: });
1195: }
1196: my $links .=
1197: join('->',
1198: map {
1199: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1200: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1201: $help = $_->{'help'} if (exists($_->{'help'}));
1202: my $result = '<a href="'.$_->{'href'}.'" ';
1203: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1204: $result .= 'target="'.$_->{'target'}.'" ';
1205: }
1206: $result .='title="'.&mt($_->{'title'}).'">'.
1207: &mt($_->{'text'}).'</a>';
1208: $result;
1209: } @Crumbs
1210: );
1211: $links .= '->' if ($links ne '');
1212: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1213: #
1214: my $icons = '';
1215: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1216: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1217: $help = $last->{'help'} if (exists($last->{'help'}));
1218: $component_help=($component_help?$component_help:$help);
1219: # if ($faq ne '') {
1220: # $icons .= &Apache::loncommon::help_open_faq($faq);
1221: # }
1222: # if ($bug ne '') {
1223: # $icons .= &Apache::loncommon::help_open_bug($bug);
1224: # }
1225: if ($helplink ne 'nohelp') {
1226: $icons .= &Apache::loncommon::help_open_menu(undef,$component,
1227: $component_help,
1228: undef,$faq,$bug);
1229: }
1230: if ($icons ne '') {
1231: $Str .= $icons.' ';
1232: }
1233: #
1234: $Str .= $links.'</td>';
1235: #
1236: if (defined($component)) {
1237: $Str .= '<td class="LC_breadcrumb_component">'.
1238: &mt($component).'</td>';
1239: }
1240: $Str .= '</tr></table>'."\n";
1241: #
1242: # Return the @Crumbs stack to what we started with
1243: push(@Crumbs,$last);
1244: shift(@Crumbs);
1245: #
1246: return $Str;
1247: }
1248:
1249: sub clear_breadcrumbs {
1250: undef(@Crumbs);
1251: }
1252:
1253: sub add_breadcrumb {
1254: push (@Crumbs,@_);
1255: }
1256:
1257: } # End of scope for @Crumbs
1258:
1259: ############################################################
1260: ############################################################
1261:
1262: # Nested table routines.
1263: #
1264: # Routines to display form items in a multi-row table with 2 columns.
1265: # Uses nested tables to divide form elements into segments.
1266: # For examples of use see loncom/interface/lonnotify.pm
1267: #
1268: # Can be used in following order: ...
1269: # &start_pick_box()
1270: # row1
1271: # row2
1272: # row3 ... etc.
1273: # &submit_row(0
1274: # &end_pickbox()
1275: #
1276: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1277: # &status_select_row and &email_default_row
1278: #
1279: # Can also be used in following order:
1280: #
1281: # &start_pick_box()
1282: # &row_title()
1283: # &row_closure()
1284: # &row_title()
1285: # &row_closure() ... etc.
1286: # &submit_row()
1287: # &end_pick_box()
1288: #
1289: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1290: # as this routine adds a button for form submission.
1291: # &submit_row() does not require a &row_closure after it.
1292: #
1293: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1294: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1295: #
1296: # &row_title() adds a title in the left column for each segment.
1297: # &row_closure() closes a row with a 1-pixel wide black line.
1298: #
1299: # &role_select_row() provides a select box from which to choose 1 or more roles
1300: # &course_select_row provides ways of picking groups of courses
1301: # radio buttons: all, by category or by picking from a course picker pop-up
1302: # note: by category option is only displayed if a domain has implemented
1303: # selection by year, semester, department, number etc.
1304: #
1305: # &status_select_row() provides a select box from which to choose 1 or more
1306: # access types (current access, prior access, and future access)
1307: #
1308: # &email_default_row() provides text boxes for default e-mail suffixes for
1309: # different authentication types in a domain.
1310: #
1311: # &row_title() and &row_closure() are called internally by the &*_select_row
1312: # routines, but can also be called directly to start and end rows which have
1313: # needs that are not accommodated by the *_select_row() routines.
1314:
1315: sub start_pick_box {
1316: my ($table_width) = @_;
1317: my $output = <<"END";
1318: <table width="$table_width" border="0" cellpadding="0" cellspacing="1" bgcolor="#000000">
1319: <tr>
1320: <td>
1321: <table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#ffffff">
1322: <tr>
1323: <td>
1324: <table width="100%" border="0" cellpadding="0" cellspacing="1" bgcolor="#ffffff">
1325: END
1326: return $output;
1327: }
1328:
1329: sub end_pick_box {
1330: my $output = <<"END";
1331: </table>
1332: </td>
1333: </tr>
1334: </table>
1335: </td>
1336: </tr>
1337: </table>
1338: END
1339: return $output;
1340: }
1341:
1342: sub row_title {
1343: my ($col_width,$tablecolor,$title) = @_;
1344: my $output = <<"ENDONE";
1345: <tr>
1346: <td width="$col_width" bgcolor="$tablecolor">
1347: <table width="$col_width" border="0" cellpadding="8" cellspacing="0">
1348: <tr>
1349: <td align="right"><b>$title:</b>
1350: </td>
1351: </tr>
1352: </table>
1353: </td>
1354: <td width="100%" valign="top">
1355: <table width="100%" border="0" cellpadding="8" cellspacing="0">
1356: <tr>
1357: ENDONE
1358: return $output;
1359: }
1360:
1361: sub row_closure {
1362: my $output = <<"ENDTWO";
1363: </tr>
1364: </table>
1365: </td>
1366: </tr>
1367: <tr>
1368: <td width="100%" colspan="2" bgcolor="#000000">
1369: <img src="/adm/lonMisc/blackdot.gif" /><br />
1370: </td>
1371: </tr>
1372: ENDTWO
1373: return $output;
1374: }
1375:
1376: sub role_select_row {
1377: my ($roles,$col_width,$tablecolor,$title) = @_;
1378: my $output;
1379: if (defined($title)) {
1380: $output = &row_title($col_width,$tablecolor,$title);
1381: }
1382: $output .= qq| <td valign="top">
1383: <select name="roles" multiple >\n|;
1384: foreach my $role (@$roles) {
1385: my $plrole;
1386: if ($role eq 'ow') {
1387: $plrole = &mt('Course Owner');
1388: } else {
1389: $plrole=&Apache::lonnet::plaintext($role);
1390: }
1391: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1392: }
1393: $output .= qq| </select>
1394: </td>\n|;
1395: if (defined($title)) {
1396: $output .= &row_closure();
1397: }
1398: return $output;
1399: }
1400:
1401: sub course_select_row {
1402: my ($col_width,$tablecolor,$title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1403: my $output = &row_title($col_width,$tablecolor,$title);
1404: $output .= " <td>\n";
1405: $output .= qq|
1406: <script type="text/javascript" language="Javascript" >
1407: function coursePick (formname) {
1408: for (var i=0; i<formname.coursepick.length; i++) {
1409: if (formname.coursepick[i].value == 'category') {
1410: courseSet('');
1411: }
1412: if (!formname.coursepick[i].checked) {
1413: if (formname.coursepick[i].value == 'specific') {
1414: formname.coursetotal.value = 0;
1415: formname.courselist = '';
1416: }
1417: }
1418: }
1419: }
1420: function setPick (formname) {
1421: for (var i=0; i<formname.coursepick.length; i++) {
1422: if (formname.coursepick[i].value == 'category') {
1423: formname.coursepick[i].checked = true;
1424: }
1425: formname.coursetotal.value = 0;
1426: formname.courselist = '';
1427: }
1428: }
1429: </script>
1430: |;
1431: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1432: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1433: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses').'<br />';
1434: if ($totcodes > 0) {
1435: my $numtitles = @$codetitles;
1436: if ($numtitles > 0) {
1437: $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 />';
1438: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1439: '<select name="'.$$codetitles[0].
1440: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1441: ' <option value="-1" />Select'."\n";
1442: my @items = ();
1443: my @longitems = ();
1444: if ($$idlist{$$codetitles[0]} =~ /","/) {
1445: @items = split(/","/,$$idlist{$$codetitles[0]});
1446: } else {
1447: $items[0] = $$idlist{$$codetitles[0]};
1448: }
1449: if (defined($$idlist_titles{$$codetitles[0]})) {
1450: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1451: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1452: } else {
1453: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1454: }
1455: for (my $i=0; $i<@longitems; $i++) {
1456: if ($longitems[$i] eq '') {
1457: $longitems[$i] = $items[$i];
1458: }
1459: }
1460: } else {
1461: @longitems = @items;
1462: }
1463: for (my $i=0; $i<@items; $i++) {
1464: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1465: }
1466: $output .= '</select></td>';
1467: for (my $i=1; $i<$numtitles; $i++) {
1468: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1469: '<select name="'.$$codetitles[$i].
1470: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1471: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1472: '</select>'."\n".
1473: '</td>';
1474: }
1475: $output .= '</tr></table><br />';
1476: }
1477: }
1478: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."'".','."'".'dccourse'."'".','."'".'dcdomain'."'".','."'".'coursedesc'."','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br /></td>'."\n";
1479: $output .= &row_closure();
1480: return $output;
1481: }
1482:
1483: sub status_select_row {
1484: my ($types,$col_width,$tablecolor,$title) = @_;
1485: my $output;
1486: if (defined($title)) {
1487: $output = &row_title($col_width,$tablecolor,$title);
1488: }
1489: $output .= qq| <td valign="top">
1490: <select name="types" multiple>\n|;
1491: foreach my $status_type (sort(keys(%{$types}))) {
1492: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1493: }
1494: $output .= qq| </select>
1495: </td>\n|;
1496: if (defined($title)) {
1497: $output .= &row_closure();
1498: }
1499: return $output;
1500: }
1501:
1502: sub email_default_row {
1503: my ($authtypes,$col_width,$tablecolor,$title,$descrip) = @_;
1504: my $output = &row_title($col_width,$tablecolor,$title);
1505: my @rowcols = ('#eeeeee','#dddddd');
1506: $output .= ' <td>'.$descrip;
1507: $output .= &start_pick_box('');
1508: $output .= ' <tr bgcolor="'.$tablecolor.'">
1509: <td><b>'.&mt('Authentication Method').'</b></td><td align="right"><b>'.&mt('Username -> e-mail conversion').'</b></td>
1510: </tr>'."\n";
1511: my $rownum = 0;
1512: foreach my $auth (sort(keys(%{$authtypes}))) {
1513: my ($userentry,$size);
1514: my $rowiter = $rownum%2;
1515: if ($auth =~ /^krb/) {
1516: $userentry = '';
1517: $size = 25;
1518: } else {
1519: $userentry = 'username@';
1520: $size = 15;
1521: }
1522: $output .= '<tr bgcolor="'.$rowcols[$rowiter].'"><td> '.$$authtypes{$auth}.'</td><td align="right">'.$userentry.'<input type="text" name="'.$auth.'" size="'.$size.'" /></td></tr>';
1523: $rownum ++;
1524: }
1525: $output .= &end_pick_box();
1526: $output .= " <br /></td>\n";
1527: $output .= &row_closure();
1528: return $output;
1529: }
1530:
1531:
1532: sub submit_row {
1533: my ($col_width,$tablecolor,$title,$cmd,$submit_text) = @_;
1534: my $output = &row_title($col_width,$tablecolor,$title);
1535: $output .= qq|
1536: <td width="100%" valign="top" align="right">
1537: <br />
1538: <input type="hidden" name="command" value="$cmd" />
1539: <input type="submit" value="$submit_text"/>
1540: <br /><br />
1541: </td>\n|;
1542: return $output;
1543: }
1544:
1545: ##############################################
1546: ##############################################
1547:
1548: # echo_form_input
1549: #
1550: # Generates html markup to add form elements from the referrer page
1551: # as hidden form elements (values encoded) in the new page.
1552: #
1553: # Intended to support two types of use
1554: # (a) to allow backing up to earlier pages in a multi-page
1555: # form submission process using a breadcrumb trail.
1556: #
1557: # (b) to allow the current page to be reloaded with form elements
1558: # set on previous page to remain unchanged. An example would
1559: # be where the a page containing a dynamically-built table of data is
1560: # is to be redisplayed, with only the sort order of the data changed.
1561: #
1562: # Inputs:
1563: # 1. Reference to array of form elements in the submitted form on
1564: # the referrer page which are to be excluded from the echoed elements.
1565: #
1566: # 2. Reference to array of regular expressions, which if matched in the
1567: # name of the form element n the referrer page will be omitted from echo.
1568: #
1569: # Outputs: A scalar containing the html markup for the echoed form
1570: # elements (all as hidden elements, with values encoded).
1571:
1572:
1573: sub echo_form_input {
1574: my ($excluded,$regexps) = @_;
1575: my $output = '';
1576: foreach my $key (keys(%env)) {
1577: if ($key =~ /^form\.(.+)$/) {
1578: my $name = $1;
1579: my $match = 0;
1580: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1581: if (defined($regexps)) {
1582: if (@{$regexps} > 0) {
1583: foreach my $regexp (@{$regexps}) {
1584: if ($name =~ /\Q$regexp\E/) {
1585: $match = 1;
1586: last;
1587: }
1588: }
1589: }
1590: }
1591: if (!$match) {
1592: if (ref($env{$key})) {
1593: foreach my $value (@{$env{$key}}) {
1594: $value = &HTML::Entities::encode($value,'<>&"');
1595: $output .= '<input type="hidden" name="'.$name.
1596: '" value="'.$value.'" />'."\n";
1597: }
1598: } else {
1599: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1600: $output .= '<input type="hidden" name="'.$name.
1601: '" value="'.$value.'" />'."\n";
1602: }
1603: }
1604: }
1605: }
1606: }
1607: return $output;
1608: }
1609:
1610: ##############################################
1611: ##############################################
1612:
1613: # set_form_elements
1614: #
1615: # Generates javascript to set form elements to values based on
1616: # corresponding values for the same form elements when the page was
1617: # previously submitted.
1618: #
1619: # Last submission values are read from hidden form elements in referring
1620: # page which have the same name, i.e., generated by &echo_form_input().
1621: #
1622: # Intended to be called by onload event.
1623: #
1624: # Inputs:
1625: # (a) Reference to hash of echoed form elements to be set.
1626: #
1627: # In the hash, keys are the form element names, and the values are the
1628: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1629: # hidden).
1630: #
1631: # (b) Optional reference to hash of stored elements to be set.
1632: #
1633: # If the page being displayed is a page which permits modification of
1634: # previously stored data, e.g., the first page in a multi-page submission,
1635: # then if stored is supplied, form elements will be set to the last stored
1636: # values. If user supplied values are also available for the same elements
1637: # these will replace the stored values.
1638: #
1639: # Output:
1640: #
1641: # javascript function - set_form_elements() which sets form elements,
1642: # expects an argument: formname - the name of the form according to
1643: # the DOM, e.g., document.compose
1644:
1645: sub set_form_elements {
1646: my ($elements,$stored) = @_;
1647: my %values;
1648: my $output .= 'function setFormElements(courseForm) {
1649: ';
1650: if (defined($stored)) {
1651: foreach my $name (keys(%{$stored})) {
1652: if (exists($$elements{$name})) {
1653: if (ref($$stored{$name}) eq 'ARRAY') {
1654: $values{$name} = $$stored{$name};
1655: } else {
1656: @{$values{$name}} = ($$stored{$name});
1657: }
1658: }
1659: }
1660: }
1661:
1662: foreach my $key (keys(%env)) {
1663: if ($key =~ /^form\.(.+)$/) {
1664: my $name = $1;
1665: if (exists($$elements{$name})) {
1666: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1667: }
1668: }
1669: }
1670:
1671: foreach my $name (keys(%values)) {
1672: for (my $i=0; $i<@{$values{$name}}; $i++) {
1673: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1674: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1675: $values{$name}[$i] =~ s/"/\\"/g;
1676: }
1677: if ($$elements{$name} eq 'text') {
1678: my $numvalues = @{$values{$name}};
1679: if ($numvalues > 1) {
1680: my $valuestring = join('","',@{$values{$name}});
1681: $output .= qq|
1682: var textvalues = new Array ("$valuestring");
1683: var total = courseForm.$name.length;
1684: if (total > $numvalues) {
1685: total = $numvalues;
1686: }
1687: for (var i=0; i<total; i++) {
1688: courseForm.$name\[i].value = textvalues[i];
1689: }
1690: |;
1691: } else {
1692: $output .= qq|
1693: courseForm.$name.value = "$values{$name}[0]";
1694: |;
1695: }
1696: } else {
1697: $output .= qq|
1698: var elementLength = courseForm.$name.length;
1699: if (elementLength==undefined) {
1700: |;
1701: foreach my $value (@{$values{$name}}) {
1702: if ($$elements{$name} eq 'selectbox') {
1703: $output .= qq|
1704: if (courseForm.$name.options[0].value == "$value") {
1705: courseForm.$name.options[0].selected = true;
1706: }|;
1707: } elsif (($$elements{$name} eq 'radio') ||
1708: ($$elements{$name} eq 'checkbox')) {
1709: $output .= qq|
1710: if (courseForm.$name.value == "$value") {
1711: courseForm.$name.checked = true;
1712: }|;
1713: }
1714: }
1715: $output .= qq|
1716: }
1717: else {
1718: for (var i=0; i<courseForm.$name.length; i++) {
1719: |;
1720: if ($$elements{$name} eq 'selectbox') {
1721: $output .= qq|
1722: courseForm.$name.options[i].selected = false;|;
1723: } elsif (($$elements{$name} eq 'radio') ||
1724: ($$elements{$name} eq 'checkbox')) {
1725: $output .= qq|
1726: courseForm.$name\[i].checked = false;|;
1727: }
1728: $output .= qq|
1729: }
1730: for (var j=0; j<courseForm.$name.length; j++) {
1731: |;
1732: foreach my $value (@{$values{$name}}) {
1733: if ($$elements{$name} eq 'selectbox') {
1734: $output .= qq|
1735: if (courseForm.$name.options[j].value == "$value") {
1736: courseForm.$name.options[j].selected = true;
1737: }|;
1738: } elsif (($$elements{$name} eq 'radio') ||
1739: ($$elements{$name} eq 'checkbox')) {
1740: $output .= qq|
1741: if (courseForm.$name\[j].value == "$value") {
1742: courseForm.$name\[j].checked = true;
1743: }|;
1744: }
1745: }
1746: $output .= qq|
1747: }
1748: }
1749: |;
1750: }
1751: }
1752: $output .= "
1753: }\n";
1754: return $output;
1755: }
1756:
1757: 1;
1758:
1759: __END__
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