1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.132 2006/06/13 14:42:24 www 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)=@_;
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 (keys %recent) {
110: my $thistime=(split(/\&/,$recent{$_}))[0];
111: if ($thistime<$oldest) {
112: $oldest=$thistime;
113: $delkey=$_;
114: }
115: }
116: &Apache::lonnet::del($file,[$delkey]);
117: }
118: # store new value
119: &Apache::lonnet::put($file,{ $name =>
120: time.'&'.&escape($value) });
121: }
122:
123: sub remove_recent {
124: my ($area,$names)=@_;
125: my $file=&recent_filename($area);
126: return &Apache::lonnet::del($file,$names);
127: }
128:
129: sub select_recent {
130: my ($area,$fieldname,$event)=@_;
131: my %recent=&Apache::lonnet::dump(&recent_filename($area));
132: my $return="\n<select name='$fieldname'".
133: ($event?" onchange='$event'":'').
134: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
135: foreach (sort keys %recent) {
136: unless ($_=~/^error\:/) {
137: my $escaped = &Apache::loncommon::escape_url($_);
138: $return.="\n<option value='$escaped'>".
139: &unescape((split(/\&/,$recent{$_}))[1]).
140: '</option>';
141: }
142: }
143: $return.="\n</select>\n";
144: return $return;
145: }
146:
147: sub get_recent {
148: my ($area, $n) = @_;
149: my %recent=&Apache::lonnet::dump(&recent_filename($area));
150:
151: # Create hash with key as time and recent as value
152: my %time_hash = ();
153: foreach (keys %recent) {
154: my $thistime=(split(/\&/,$recent{$_}))[0];
155: $time_hash{$thistime} = $_;
156: }
157:
158: # Sort by decreasing time and return key value pairs
159: my %return_hash = ();
160: my $idx = 1;
161: foreach (reverse sort keys %time_hash) {
162: $return_hash{$time_hash{$_}} =
163: &unescape((split(/\&/,$recent{$_}))[1]);
164: if ($n && ($idx++ >= $n)) {last;}
165: }
166:
167: return %return_hash;
168: }
169:
170:
171:
172: =pod
173:
174: =item textbox
175:
176: =cut
177:
178: ##############################################
179: ##############################################
180: sub textbox {
181: my ($name,$value,$size,$special) = @_;
182: $size = 40 if (! defined($size));
183: $value = &HTML::Entities::encode($value,'<>&"');
184: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
185: 'value="'.$value.'" '.$special.' />';
186: return $Str;
187: }
188:
189: ##############################################
190: ##############################################
191:
192: =pod
193:
194: =item checkbox
195:
196: =cut
197:
198: ##############################################
199: ##############################################
200: sub checkbox {
201: my ($name,$checked,$value) = @_;
202: my $Str = '<input type="checkbox" name="'.$name.'" ';
203: if (defined($value)) {
204: $Str .= 'value="'.$value.'"';
205: }
206: if ($checked) {
207: $Str .= ' checked="1"';
208: }
209: $Str .= ' />';
210: return $Str;
211: }
212:
213:
214: =pod
215:
216: =item radiobutton
217:
218: =cut
219:
220: ##############################################
221: ##############################################
222: sub radio {
223: my ($name,$checked,$value) = @_;
224: my $Str = '<input type="radio" name="'.$name.'" ';
225: if (defined($value)) {
226: $Str .= 'value="'.$value.'"';
227: }
228: if ($checked eq $value) {
229: $Str .= ' checked="1"';
230: }
231: $Str .= ' />';
232: return $Str;
233: }
234:
235: ##############################################
236: ##############################################
237:
238: =pod
239:
240: =item &date_setter
241:
242: &date_setter returns html and javascript for a compact date-setting form.
243: To retrieve values from it, use &get_date_from_form().
244:
245: Inputs
246:
247: =over 4
248:
249: =item $dname
250:
251: The name to prepend to the form elements.
252: The form elements defined will be dname_year, dname_month, dname_day,
253: dname_hour, dname_min, and dname_sec.
254:
255: =item $currentvalue
256:
257: The current setting for this time parameter. A unix format time
258: (time in seconds since the beginning of Jan 1st, 1970, GMT.
259: An undefined value is taken to indicate the value is the current time.
260: Also, to be explicit, a value of 'now' also indicates the current time.
261:
262: =item $special
263:
264: Additional html/javascript to be associated with each element in
265: the date_setter. See lonparmset for example usage.
266:
267: =item $includeempty
268:
269: =item $state
270:
271: Specifies the initial state of the form elements. Either 'disabled' or empty.
272: Defaults to empty, which indiciates the form elements are not disabled.
273:
274: =back
275:
276: Bugs
277:
278: The method used to restrict user input will fail in the year 2400.
279:
280: =cut
281:
282: ##############################################
283: ##############################################
284: sub date_setter {
285: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
286: $no_hh_mm_ss,$defhour,$defmin,$defsec) = @_;
287: my $wasdefined=1;
288: if (! defined($state) || $state ne 'disabled') {
289: $state = '';
290: }
291: if (! defined($no_hh_mm_ss)) {
292: $no_hh_mm_ss = 0;
293: }
294: if ($currentvalue eq 'now') {
295: $currentvalue=time;
296: }
297: if ((!defined($currentvalue)) || ($currentvalue eq '')) {
298: $wasdefined=0;
299: if ($includeempty) {
300: $currentvalue = 0;
301: } else {
302: $currentvalue = time;
303: }
304: }
305: # other potentially useful values: wkday,yrday,is_daylight_savings
306: my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
307: if ($currentvalue) {
308: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
309: localtime($currentvalue);
310: $year += 1900;
311: }
312: unless ($wasdefined) {
313: if (($defhour) || ($defmin) || ($defsec)) {
314: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
315: localtime(time);
316: $year += 1900;
317: $sec=($defsec?$defsec:0);
318: $min=($defmin?$defmin:0);
319: $hour=($defhour?$defhour:0);
320: } elsif (!$includeempty) {
321: $sec=0;
322: $min=0;
323: $hour=0;
324: }
325: }
326: my $result = "\n<!-- $dname date setting form -->\n";
327: $result .= <<ENDJS;
328: <script language="Javascript">
329: function $dname\_checkday() {
330: var day = document.$formname.$dname\_day.value;
331: var month = document.$formname.$dname\_month.value;
332: var year = document.$formname.$dname\_year.value;
333: var valid = true;
334: if (day < 1) {
335: document.$formname.$dname\_day.value = 1;
336: }
337: if (day > 31) {
338: document.$formname.$dname\_day.value = 31;
339: }
340: if ((month == 1) || (month == 3) || (month == 5) ||
341: (month == 7) || (month == 8) || (month == 10) ||
342: (month == 12)) {
343: if (day > 31) {
344: document.$formname.$dname\_day.value = 31;
345: day = 31;
346: }
347: } else if (month == 2 ) {
348: if ((year % 4 == 0) && (year % 100 != 0)) {
349: if (day > 29) {
350: document.$formname.$dname\_day.value = 29;
351: }
352: } else if (day > 29) {
353: document.$formname.$dname\_day.value = 28;
354: }
355: } else if (day > 30) {
356: document.$formname.$dname\_day.value = 30;
357: }
358: }
359:
360: function $dname\_disable() {
361: document.$formname.$dname\_month.disabled=true;
362: document.$formname.$dname\_day.disabled=true;
363: document.$formname.$dname\_year.disabled=true;
364: document.$formname.$dname\_hour.disabled=true;
365: document.$formname.$dname\_minute.disabled=true;
366: document.$formname.$dname\_second.disabled=true;
367: }
368:
369: function $dname\_enable() {
370: document.$formname.$dname\_month.disabled=false;
371: document.$formname.$dname\_day.disabled=false;
372: document.$formname.$dname\_year.disabled=false;
373: document.$formname.$dname\_hour.disabled=false;
374: document.$formname.$dname\_minute.disabled=false;
375: document.$formname.$dname\_second.disabled=false;
376: }
377:
378: function $dname\_opencalendar() {
379: if (! document.$formname.$dname\_month.disabled) {
380: var calwin=window.open(
381: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
382: document.$formname.$dname\_month.value+"&year="+
383: document.$formname.$dname\_year.value,
384: "LONCAPAcal",
385: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
386: }
387:
388: }
389: </script>
390: ENDJS
391: $result .= ' <nobr>';
392: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
393: # Month
394: my @Months = qw/January February March April May June
395: July August September October November December/;
396: # Pad @Months with a bogus value to make indexing easier
397: unshift(@Months,'If you can read this an error occurred');
398: if ($includeempty) { $monthselector.="<option value=''></option>"; }
399: for(my $m = 1;$m <=$#Months;$m++) {
400: $monthselector .= qq{ <option value="$m" };
401: $monthselector .= "selected " if ($m-1 eq $month);
402: $monthselector .= '> '.&mt($Months[$m]).' </option>';
403: }
404: $monthselector.= ' </select>';
405: # Day
406: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
407: # Year
408: my $yearselector = qq{<input type="year" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
409: #
410: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
411: if ($includeempty) {
412: $hourselector.=qq{<option value=''></option>};
413: }
414: for (my $h = 0;$h<24;$h++) {
415: $hourselector .= qq{<option value="$h" };
416: $hourselector .= "selected " if (defined($hour) && $hour == $h);
417: $hourselector .= ">";
418: my $timest='';
419: if ($h == 0) {
420: $timest .= "12 am";
421: } elsif($h == 12) {
422: $timest .= "12 noon";
423: } elsif($h < 12) {
424: $timest .= "$h am";
425: } else {
426: $timest .= $h-12 ." pm";
427: }
428: $timest=&mt($timest);
429: $hourselector .= $timest." </option>\n";
430: }
431: $hourselector .= " </select>\n";
432: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
433: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
434: my $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
435: #
436: if ($no_hh_mm_ss) {
437: $result .= &mt('[_1] [_2] [_3] [_4]Select Date[_5]',
438: $monthselector,$dayselector,$yearselector,
439: $cal_link,'</a>');
440: } else {
441: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s [_7]Select Date[_8]',
442: $monthselector,$dayselector,$yearselector,
443: $hourselector,$minuteselector,$secondselector,
444: $cal_link,'</a>');
445: }
446: $result .= "</nobr>\n<!-- end $dname date setting form -->\n";
447: return $result;
448: }
449:
450: ##############################################
451: ##############################################
452:
453: =pod
454:
455: =item &get_date_from_form
456:
457: get_date_from_form retrieves the date specified in an &date_setter form.
458:
459: Inputs:
460:
461: =over 4
462:
463: =item $dname
464:
465: The name passed to &datesetter, which prefixes the form elements.
466:
467: =item $defaulttime
468:
469: The unix time to use as the default in case of poor inputs.
470:
471: =back
472:
473: Returns: Unix time represented in the form.
474:
475: =cut
476:
477: ##############################################
478: ##############################################
479: sub get_date_from_form {
480: my ($dname) = @_;
481: my ($sec,$min,$hour,$day,$month,$year);
482: #
483: if (defined($env{'form.'.$dname.'_second'})) {
484: my $tmpsec = $env{'form.'.$dname.'_second'};
485: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
486: $sec = $tmpsec;
487: }
488: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
489: } else {
490: $sec = 0;
491: }
492: if (defined($env{'form.'.$dname.'_minute'})) {
493: my $tmpmin = $env{'form.'.$dname.'_minute'};
494: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
495: $min = $tmpmin;
496: }
497: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
498: } else {
499: $min = 0;
500: }
501: if (defined($env{'form.'.$dname.'_hour'})) {
502: my $tmphour = $env{'form.'.$dname.'_hour'};
503: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
504: $hour = $tmphour;
505: }
506: } else {
507: $hour = 0;
508: }
509: if (defined($env{'form.'.$dname.'_day'})) {
510: my $tmpday = $env{'form.'.$dname.'_day'};
511: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
512: $day = $tmpday;
513: }
514: }
515: if (defined($env{'form.'.$dname.'_month'})) {
516: my $tmpmonth = $env{'form.'.$dname.'_month'};
517: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
518: $month = $tmpmonth - 1;
519: }
520: }
521: if (defined($env{'form.'.$dname.'_year'})) {
522: my $tmpyear = $env{'form.'.$dname.'_year'};
523: if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
524: $year = $tmpyear - 1900;
525: }
526: }
527: if (($year<70) || ($year>137)) { return undef; }
528: if (defined($sec) && defined($min) && defined($hour) &&
529: defined($day) && defined($month) && defined($year) &&
530: eval('&timelocal($sec,$min,$hour,$day,$month,$year)')) {
531: return &timelocal($sec,$min,$hour,$day,$month,$year);
532: } else {
533: return undef;
534: }
535: }
536:
537: ##############################################
538: ##############################################
539:
540: =pod
541:
542: =item &pjump_javascript_definition()
543:
544: Returns javascript defining the 'pjump' function, which opens up a
545: parameter setting wizard.
546:
547: =cut
548:
549: ##############################################
550: ##############################################
551: sub pjump_javascript_definition {
552: my $Str = <<END;
553: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
554: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
555: +"&value="+escape(value)+"&marker="+escape(marker)
556: +"&return="+escape(ret)
557: +"&call="+escape(call)+"&name="+escape(dis)
558: +"&defhour="+escape(hour)+"&defmin="+escape(min)
559: +"&defsec="+escape(sec),"LONCAPAparms",
560: "height=350,width=350,scrollbars=no,menubar=no");
561: }
562: END
563: return $Str;
564: }
565:
566: ##############################################
567: ##############################################
568:
569: =pod
570:
571: =item &javascript_nothing()
572:
573: Return an appropriate null for the users browser. This is used
574: as the first arguement for window.open calls when you want a blank
575: window that you can then write to.
576:
577: =cut
578:
579: ##############################################
580: ##############################################
581: sub javascript_nothing {
582: # mozilla and other browsers work with "''", but IE on mac does not.
583: my $nothing = "''";
584: my $user_browser;
585: my $user_os;
586: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
587: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
588: if (! defined($user_browser) || ! defined($user_os)) {
589: (undef,$user_browser,undef,undef,undef,$user_os) =
590: &Apache::loncommon::decode_user_agent();
591: }
592: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
593: $nothing = "'javascript:void(0);'";
594: }
595: return $nothing;
596: }
597:
598: ##############################################
599: ##############################################
600: sub javascript_docopen {
601: # safari does not understand document.open() and loads "text/html"
602: my $nothing = "''";
603: my $user_browser;
604: my $user_os;
605: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
606: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
607: if (! defined($user_browser) || ! defined($user_os)) {
608: (undef,$user_browser,undef,undef,undef,$user_os) =
609: &Apache::loncommon::decode_user_agent();
610: }
611: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
612: $nothing = "document.clear()";
613: } else {
614: $nothing = "document.open('text/html','replace')";
615: }
616: return $nothing;
617: }
618:
619:
620: ##############################################
621: ##############################################
622:
623: =pod
624:
625: =item &StatusOptions()
626:
627: Returns html for a selection box which allows the user to choose the
628: enrollment status of students. The selection box name is 'Status'.
629:
630: Inputs:
631:
632: $status: the currently selected status. If undefined the value of
633: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
634: is used.
635:
636: $formname: The name of the form. If defined the onchange attribute of
637: the selection box is set to document.$formname.submit().
638:
639: $size: the size (number of lines) of the selection box.
640:
641: $onchange: javascript to use when the value is changed. Enclosed in
642: double quotes, ""s, not single quotes.
643:
644: Returns: a perl string as described.
645:
646: =cut
647:
648: ##############################################
649: ##############################################
650: sub StatusOptions {
651: my ($status, $formName,$size,$onchange)=@_;
652: $size = 1 if (!defined($size));
653: if (! defined($status)) {
654: $status = 'Active';
655: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
656: }
657:
658: my $OpSel1 = '';
659: my $OpSel2 = '';
660: my $OpSel3 = '';
661:
662: if($status eq 'Any') { $OpSel3 = ' selected'; }
663: elsif($status eq 'Expired' ) { $OpSel2 = ' selected'; }
664: else { $OpSel1 = ' selected'; }
665:
666: my $Str = '';
667: $Str .= '<select name="Status"';
668: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
669: $Str .= ' onchange="document.'.$formName.'.submit()"';
670: }
671: if (defined($onchange)) {
672: $Str .= ' onchange="'.$onchange.'"';
673: }
674: $Str .= ' size="'.$size.'" ';
675: $Str .= '>'."\n";
676: $Str .= '<option value="Active" '.$OpSel1.'>'.
677: &mt('Currently Enrolled').'</option>'."\n";
678: $Str .= '<option value="Expired" '.$OpSel2.'>'.
679: &mt('Previously Enrolled').'</option>'."\n";
680: $Str .= '<option value="Any" '.$OpSel3.'>'.
681: &mt('Any Enrollment Status').'</option>'."\n";
682: $Str .= '</select>'."\n";
683: }
684:
685: ########################################################
686: ########################################################
687:
688: =pod
689:
690: =item Progess Window Handling Routines
691:
692: These routines handle the creation, update, increment, and closure of
693: progress windows. The progress window reports to the user the number
694: of items completed and an estimate of the time required to complete the rest.
695:
696: =over 4
697:
698:
699: =item &Create_PrgWin
700:
701: Writes javascript to the client to open a progress window and returns a
702: data structure used for bookkeeping.
703:
704: Inputs
705:
706: =over 4
707:
708: =item $r Apache request
709:
710: =item $title The title of the progress window
711:
712: =item $heading A description (usually 1 line) of the process being initiated.
713:
714: =item $number_to_do The total number of items being processed.
715:
716: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
717: specified)
718:
719: =item $width Specify the width in charaters of the input field.
720:
721: =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
722:
723: =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
724:
725: =back
726:
727: Returns a hash containing the progress state data structure.
728:
729:
730: =item &Update_PrgWin
731:
732: Updates the text in the progress indicator. Does not increment the count.
733: See &Increment_PrgWin.
734:
735: Inputs:
736:
737: =over 4
738:
739: =item $r Apache request
740:
741: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
742:
743: =item $displaystring The string to write to the status indicator
744:
745: =back
746:
747: Returns: none
748:
749:
750: =item Increment_PrgWin
751:
752: Increment the count of items completed for the progress window by 1.
753:
754: Inputs:
755:
756: =over 4
757:
758: =item $r Apache request
759:
760: =item $prog_state Pointer to the data structure returned by Create_PrgWin
761:
762: =item $extraInfo A description of the items being iterated over. Typically
763: 'student'.
764:
765: =back
766:
767: Returns: none
768:
769:
770: =item Close_PrgWin
771:
772: Closes the progress window.
773:
774: Inputs:
775:
776: =over 4
777:
778: =item $r Apache request
779:
780: =item $prog_state Pointer to the data structure returned by Create_PrgWin
781:
782: =back
783:
784: Returns: none
785:
786: =back
787:
788: =cut
789:
790: ########################################################
791: ########################################################
792:
793: my $uniq=0;
794: sub get_uniq_name {
795: $uniq++;
796: return 'uniquename'.$uniq;
797: }
798:
799: # Create progress
800: sub Create_PrgWin {
801: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
802: $inputname)=@_;
803: if (!defined($type)) { $type='popup'; }
804: if (!defined($width)) { $width=55; }
805: my %prog_state;
806: $prog_state{'type'}=$type;
807: if ($type eq 'popup') {
808: $prog_state{'window'}='popwin';
809: my $start_page =
810: &Apache::loncommon::start_page($title,undef,
811: {'only_body' => 1,
812: 'bgcolor' => '#88DDFF',
813: 'js_ready' => 1});
814: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
815:
816: #the whole function called through timeout is due to issues
817: #in mozilla Read BUG #2665 if you want to know the whole story
818: &r_print($r,'<script type="text/javascript">'.
819: "var popwin;
820: function openpopwin () {
821: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
822: "popwin.document.writeln(\'".$start_page.
823: "<h4>$heading<\/h4>".
824: "<form name=\"popremain\" method=\"post\">".
825: '<input type="text" size="'.$width.'" name="remaining" value="'.
826: &mt('Starting').'" /><\\/form>'.$end_page.
827: "\');".
828: "popwin.document.close();}".
829: "\nwindow.setTimeout(openpopwin,0)</script>");
830: $prog_state{'formname'}='popremain';
831: $prog_state{'inputname'}="remaining";
832: } elsif ($type eq 'inline') {
833: $prog_state{'window'}='window';
834: if (!$formname) {
835: $prog_state{'formname'}=&get_uniq_name();
836: &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
837: } else {
838: $prog_state{'formname'}=$formname;
839: }
840: if (!$inputname) {
841: $prog_state{'inputname'}=&get_uniq_name();
842: &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
843: '" size="'.$width.'" />');
844: } else {
845: $prog_state{'inputname'}=$inputname;
846:
847: }
848: if (!$formname) { &r_print($r,'</form>'); }
849: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
850: }
851:
852: $prog_state{'done'}=0;
853: $prog_state{'firststart'}=&Time::HiRes::time();
854: $prog_state{'laststart'}=&Time::HiRes::time();
855: $prog_state{'max'}=$number_to_do;
856:
857: return %prog_state;
858: }
859:
860: # update progress
861: sub Update_PrgWin {
862: my ($r,$prog_state,$displayString)=@_;
863: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
864: $$prog_state{'formname'}.'.'.
865: $$prog_state{'inputname'}.'.value="'.
866: $displayString.'";</script>');
867: $$prog_state{'laststart'}=&Time::HiRes::time();
868: }
869:
870: # increment progress state
871: sub Increment_PrgWin {
872: my ($r,$prog_state,$extraInfo)=@_;
873: $$prog_state{'done'}++;
874: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
875: $$prog_state{'done'} *
876: ($$prog_state{'max'}-$$prog_state{'done'});
877: $time_est = int($time_est);
878: #
879: my $min = int($time_est/60);
880: my $sec = $time_est % 60;
881: #
882: my $str;
883: if ($min == 0 && $sec > 1) {
884: $str = '[_2] seconds';
885: } elsif ($min == 1 && $sec > 1) {
886: $str = '1 minute [_2] seconds';
887: } elsif ($min == 1 && $sec < 2) {
888: $str = '1 minute';
889: } elsif ($min < 10 && $sec > 1) {
890: $str = '[_1] minutes, [_2] seconds';
891: } elsif ($min >= 10 || $sec < 2) {
892: $str = '[_1] minutes';
893: }
894: $time_est = &mt($str,$min,$sec);
895: #
896: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
897: if ($lasttime > 9) {
898: $lasttime = int($lasttime);
899: } elsif ($lasttime < 0.01) {
900: $lasttime = 0;
901: } else {
902: $lasttime = sprintf("%3.2f",$lasttime);
903: }
904: if ($lasttime == 1) {
905: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
906: } else {
907: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
908: }
909: #
910: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
911: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
912: if (! defined($user_browser) || ! defined($user_os)) {
913: (undef,$user_browser,undef,undef,undef,$user_os) =
914: &Apache::loncommon::decode_user_agent();
915: }
916: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
917: $lasttime = '';
918: }
919: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
920: $$prog_state{'formname'}.'.'.
921: $$prog_state{'inputname'}.'.value="'.
922: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
923: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
924: $$prog_state{'laststart'}=&Time::HiRes::time();
925: }
926:
927: # close Progress Line
928: sub Close_PrgWin {
929: my ($r,$prog_state)=@_;
930: if ($$prog_state{'type'} eq 'popup') {
931: &r_print($r,'<script>popwin.close()</script>'."\n");
932: } elsif ($$prog_state{'type'} eq 'inline') {
933: &Update_PrgWin($r,$prog_state,&mt('Done'));
934: }
935: undef(%$prog_state);
936: }
937:
938: sub r_print {
939: my ($r,$to_print)=@_;
940: if ($r) {
941: $r->print($to_print);
942: $r->rflush();
943: } else {
944: print($to_print);
945: }
946: }
947:
948: # ------------------------------------------------------- Puts directory header
949:
950: sub crumbs {
951: my ($uri,$target,$prefix,$form,$size,$noformat,$skiplast)=@_;
952: if (! defined($size)) {
953: $size = '+2';
954: }
955: if ($target) {
956: $target = ' target="'.
957: &Apache::loncommon::escape_single($target).'"';
958: }
959: my $output='';
960: unless ($noformat) { $output.='<br /><tt><b>'; }
961: $output.='<font size="'.$size.'">'.$prefix.'/';
962: if ($env{'user.adv'}) {
963: my $path=$prefix.'/';
964: foreach my $dir (split('/',$uri)) {
965: if (! $dir) { next; }
966: $path .= $dir;
967: if ($path eq $uri) {
968: if ($skiplast) {
969: $output.=$dir;
970: last;
971: }
972: } else {
973: $path.='/';
974: }
975: my $linkpath = &Apache::loncommon::escape_single($path);
976: if ($form) {
977: $linkpath=
978: qq{javascript:$form.action='$linkpath';$form.submit();};
979: }
980: $output.=qq{<a href="$linkpath" $target>$dir</a>/};
981: }
982: } else {
983: $output.=$uri;
984: }
985: unless ($uri=~/\/$/) { $output=~s/\/$//; }
986: return $output.'</font>'.($noformat?'':'</b></tt><br />');
987: }
988:
989: # --------------------- A function that generates a window for the spellchecker
990:
991: sub spellheader {
992: my $start_page=
993: &Apache::loncommon::start_page('Speller Suggestions',undef,
994: {'only_body' => 1,
995: 'js_ready' => 1,
996: 'bgcolor' => '#DDDDDD',});
997: my $end_page=
998: &Apache::loncommon::end_page({'js_ready' => 1});
999:
1000: my $nothing=&javascript_nothing();
1001: return (<<ENDCHECK);
1002: <script type="text/javascript">
1003: //<!-- BEGIN LON-CAPA Internal
1004: var checkwin;
1005:
1006: function spellcheckerwindow() {
1007: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1008: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="" /><\\/form>$end_page');
1009: checkwin.document.close();
1010: }
1011: // END LON-CAPA Internal -->
1012: </script>
1013: ENDCHECK
1014: }
1015:
1016: # ---------------------------------- Generate link to spell checker for a field
1017:
1018: sub spelllink {
1019: my ($form,$field)=@_;
1020: my $linktext=&mt('Check Spelling');
1021: return (<<ENDLINK);
1022: <a href="javascript:if (typeof(document.$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>
1023: ENDLINK
1024: }
1025:
1026: # ------------------------------------------------- Output headers for HTMLArea
1027:
1028: {
1029: my @htmlareafields;
1030: sub init_htmlareafields {
1031: undef(@htmlareafields);
1032: }
1033:
1034: sub add_htmlareafields {
1035: my (@newfields) = @_;
1036: push(@htmlareafields,@newfields);
1037: }
1038:
1039: sub get_htmlareafields {
1040: return @htmlareafields;
1041: }
1042: }
1043:
1044: sub htmlareaheaders {
1045: if (&htmlareablocked()) { return ''; }
1046: unless (&htmlareabrowser()) { return ''; }
1047: my $lang='en';
1048: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1049: $lang=&mt('htmlarea_lang');
1050: }
1051: return (<<ENDHEADERS);
1052: <script type="text/javascript">
1053: _editor_url='/htmlarea/';
1054: _editor_lang='$lang';
1055: </script>
1056: <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
1057: ENDHEADERS
1058: }
1059:
1060: # ------------------------------------------------- Activate additional buttons
1061:
1062: sub htmlareaaddbuttons {
1063: if (&htmlareablocked()) { return ''; }
1064: unless (&htmlareabrowser()) { return ''; }
1065: return (<<ENDADDBUTTON);
1066: var config=new HTMLArea.Config();
1067: config.registerButton('ed_math','LaTeX Inline',
1068: '/htmlarea/images/ed_math.gif',false,
1069: function(editor,id) {
1070: editor.surroundHTML(' <m>\$','\$</m> ');
1071: }
1072: );
1073: config.registerButton('ed_math_eqn','LaTeX Equation',
1074: '/htmlarea/images/ed_math_eqn.gif',false,
1075: function(editor,id) {
1076: editor.surroundHTML(
1077: ' \\n<center><m>\\\\[','\\\\]</m></center>\\n ');
1078: }
1079: );
1080: config.toolbar.push(['ed_math','ed_math_eqn']);
1081: ENDADDBUTTON
1082: }
1083:
1084: # ----------------------------------------------------------------- Preferences
1085:
1086: sub disablelink {
1087: my @fields=@_;
1088: if (defined($#fields)) {
1089: unless ($#fields>=0) { return ''; }
1090: }
1091: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1092: }
1093:
1094: sub enablelink {
1095: my @fields=@_;
1096: if (defined($#fields)) {
1097: unless ($#fields>=0) { return ''; }
1098: }
1099: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1100: }
1101:
1102: # ----------------------------------------- Script to activate only some fields
1103:
1104: sub htmlareaselectactive {
1105: my @fields=@_;
1106: unless (&htmlareabrowser()) { return ''; }
1107: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1108: my $output='<script type="text/javascript" defer="1">'.
1109: &htmlareaaddbuttons();
1110: foreach(@fields) {
1111: $output.="\nHTMLArea.replace('$_',config);";
1112: }
1113: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1114: &disablelink(@fields);
1115: return $output;
1116: }
1117:
1118: # --------------------------------------------------------------------- Blocked
1119:
1120: sub htmlareablocked {
1121: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1122: return 0;
1123: }
1124:
1125: # ---------------------------------------- Browser capable of running HTMLArea?
1126:
1127: sub htmlareabrowser {
1128: return 1;
1129: }
1130:
1131: ############################################################
1132: ############################################################
1133:
1134: =pod
1135:
1136: =item breadcrumbs
1137:
1138: Compiles the previously registered breadcrumbs into an series of links.
1139: FAQ and BUG links will be placed on the left side of the table if they
1140: are defined for the last registered breadcrumb.
1141: Additionally supports a 'component', which will be displayed on the
1142: right side of the table (without a link).
1143: A link to help for the component will be included if one is specified.
1144:
1145: All inputs can be undef without problems.
1146:
1147: Inputs: $color (the background color of the table returned),
1148: $component (the large text on the right side of the table),
1149: $component_help
1150: $function (role to get colors from)
1151: $domain (domian of role)
1152: $menulink (boolean, controls whether to include a link to /adm/menu)
1153:
1154: Returns a string containing breadcrumbs for the current page.
1155:
1156: =item clear_breadcrumbs
1157:
1158: Clears the previously stored breadcrumbs.
1159:
1160: =item add_breadcrumb
1161:
1162: Pushes a breadcrumb on the stack of crumbs.
1163:
1164: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1165: are required. If present the keys 'faq' and 'bug' will be used to provide
1166: links to the FAQ and bug sites.
1167:
1168: returns: nothing
1169:
1170: =cut
1171:
1172: ############################################################
1173: ############################################################
1174: {
1175: my @Crumbs;
1176:
1177: sub breadcrumbs {
1178: my ($component,$component_help,$menulink,$helplink) = @_;
1179: #
1180: my $Str = "\n".'<table id="LC_breadcrumbs"><tr><td>';
1181: #
1182: # Make the faq and bug data cascade
1183: my $faq = '';
1184: my $bug = '';
1185: my $help='';
1186: # The last breadcrumb does not have a link, so handle it separately.
1187: my $last = pop(@Crumbs);
1188: #
1189: # The first one should be the course or a menu link
1190: if (!defined($menulink)) { $menulink=1; }
1191: if ($menulink) {
1192: my $description = 'Menu';
1193: if (exists($env{'request.course.id'}) &&
1194: $env{'request.course.id'} ne '') {
1195: $description =
1196: $env{'course.'.$env{'request.course.id'}.'.description'};
1197: }
1198: unshift(@Crumbs,{
1199: href =>'/adm/menu',
1200: title =>'Go to main menu',
1201: target =>'_top',
1202: text =>$description,
1203: });
1204: }
1205: my $links .=
1206: join('->',
1207: map {
1208: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1209: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1210: $help = $_->{'help'} if (exists($_->{'help'}));
1211: my $result = '<a href="'.$_->{'href'}.'" ';
1212: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1213: $result .= 'target="'.$_->{'target'}.'" ';
1214: }
1215: $result .='title="'.&mt($_->{'title'}).'">'.
1216: &mt($_->{'text'}).'</a>';
1217: $result;
1218: } @Crumbs
1219: );
1220: $links .= '->' if ($links ne '');
1221: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1222: #
1223: my $icons = '';
1224: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1225: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1226: $help = $last->{'help'} if (exists($last->{'help'}));
1227: $component_help=($component_help?$component_help:$help);
1228: # if ($faq ne '') {
1229: # $icons .= &Apache::loncommon::help_open_faq($faq);
1230: # }
1231: # if ($bug ne '') {
1232: # $icons .= &Apache::loncommon::help_open_bug($bug);
1233: # }
1234: if ($helplink ne 'nohelp') {
1235: $icons .= &Apache::loncommon::help_open_menu(undef,$component,
1236: $component_help,
1237: undef,$faq,$bug);
1238: }
1239: if ($icons ne '') {
1240: $Str .= $icons.' ';
1241: }
1242: #
1243: $Str .= $links.'</td>';
1244: #
1245: if (defined($component)) {
1246: $Str .= '<td class="LC_breadcrumb_component">'.
1247: &mt($component).'</td>';
1248: }
1249: $Str .= '</tr></table>'."\n";
1250: #
1251: # Return the @Crumbs stack to what we started with
1252: push(@Crumbs,$last);
1253: shift(@Crumbs);
1254: #
1255: return $Str;
1256: }
1257:
1258: sub clear_breadcrumbs {
1259: undef(@Crumbs);
1260: }
1261:
1262: sub add_breadcrumb {
1263: push (@Crumbs,@_);
1264: }
1265:
1266: } # End of scope for @Crumbs
1267:
1268: ############################################################
1269: ############################################################
1270:
1271: # Nested table routines.
1272: #
1273: # Routines to display form items in a multi-row table with 2 columns.
1274: # Uses nested tables to divide form elements into segments.
1275: # For examples of use see loncom/interface/lonnotify.pm
1276: #
1277: # Can be used in following order: ...
1278: # &start_pick_box()
1279: # row1
1280: # row2
1281: # row3 ... etc.
1282: # &submit_row(0
1283: # &end_pickbox()
1284: #
1285: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1286: # &status_select_row and &email_default_row
1287: #
1288: # Can also be used in following order:
1289: #
1290: # &start_pick_box()
1291: # &row_title()
1292: # &row_closure()
1293: # &row_title()
1294: # &row_closure() ... etc.
1295: # &submit_row()
1296: # &end_pick_box()
1297: #
1298: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1299: # as this routine adds a button for form submission.
1300: # &submit_row() does not require a &row_closure after it.
1301: #
1302: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1303: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1304: #
1305: # &row_title() adds a title in the left column for each segment.
1306: # &row_closure() closes a row with a 1-pixel wide black line.
1307: #
1308: # &role_select_row() provides a select box from which to choose 1 or more roles
1309: # &course_select_row provides ways of picking groups of courses
1310: # radio buttons: all, by category or by picking from a course picker pop-up
1311: # note: by category option is only displayed if a domain has implemented
1312: # selection by year, semester, department, number etc.
1313: #
1314: # &status_select_row() provides a select box from which to choose 1 or more
1315: # access types (current access, prior access, and future access)
1316: #
1317: # &email_default_row() provides text boxes for default e-mail suffixes for
1318: # different authentication types in a domain.
1319: #
1320: # &row_title() and &row_closure() are called internally by the &*_select_row
1321: # routines, but can also be called directly to start and end rows which have
1322: # needs that are not accommodated by the *_select_row() routines.
1323:
1324: sub start_pick_box {
1325: my ($table_width) = @_;
1326: my $output = <<"END";
1327: <table width="$table_width" border="0" cellpadding="0" cellspacing="1" bgcolor="#000000">
1328: <tr>
1329: <td>
1330: <table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#ffffff">
1331: <tr>
1332: <td>
1333: <table width="100%" border="0" cellpadding="0" cellspacing="1" bgcolor="#ffffff">
1334: END
1335: return $output;
1336: }
1337:
1338: sub end_pick_box {
1339: my $output = <<"END";
1340: </table>
1341: </td>
1342: </tr>
1343: </table>
1344: </td>
1345: </tr>
1346: </table>
1347: END
1348: return $output;
1349: }
1350:
1351: sub row_title {
1352: my ($col_width,$tablecolor,$title) = @_;
1353: my $output = <<"ENDONE";
1354: <tr>
1355: <td width="$col_width" bgcolor="$tablecolor">
1356: <table width="$col_width" border="0" cellpadding="8" cellspacing="0">
1357: <tr>
1358: <td align="right"><b>$title:</b>
1359: </td>
1360: </tr>
1361: </table>
1362: </td>
1363: <td width="100%" valign="top">
1364: <table width="100%" border="0" cellpadding="8" cellspacing="0">
1365: <tr>
1366: ENDONE
1367: return $output;
1368: }
1369:
1370: sub row_closure {
1371: my $output = <<"ENDTWO";
1372: </tr>
1373: </table>
1374: </td>
1375: </tr>
1376: <tr>
1377: <td width="100%" colspan="2" bgcolor="#000000">
1378: <img src="/adm/lonMisc/blackdot.gif" /><br />
1379: </td>
1380: </tr>
1381: ENDTWO
1382: return $output;
1383: }
1384:
1385: sub role_select_row {
1386: my ($roles,$col_width,$tablecolor,$title) = @_;
1387: my $output;
1388: if (defined($title)) {
1389: $output = &row_title($col_width,$tablecolor,$title);
1390: }
1391: $output .= qq| <td valign="top">
1392: <select name="roles" multiple >\n|;
1393: foreach my $role (@$roles) {
1394: my $plrole;
1395: if ($role eq 'ow') {
1396: $plrole = &mt('Course Owner');
1397: } else {
1398: $plrole=&Apache::lonnet::plaintext($role);
1399: }
1400: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1401: }
1402: $output .= qq| </select>
1403: </td>\n|;
1404: if (defined($title)) {
1405: $output .= &row_closure();
1406: }
1407: return $output;
1408: }
1409:
1410: sub course_select_row {
1411: my ($col_width,$tablecolor,$title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1412: my $output = &row_title($col_width,$tablecolor,$title);
1413: $output .= " <td>\n";
1414: $output .= qq|
1415: <script type="text/javascript" language="Javascript" >
1416: function coursePick (formname) {
1417: for (var i=0; i<formname.coursepick.length; i++) {
1418: if (formname.coursepick[i].value == 'category') {
1419: courseSet('');
1420: }
1421: if (!formname.coursepick[i].checked) {
1422: if (formname.coursepick[i].value == 'specific') {
1423: formname.coursetotal.value = 0;
1424: formname.courselist = '';
1425: }
1426: }
1427: }
1428: }
1429: function setPick (formname) {
1430: for (var i=0; i<formname.coursepick.length; i++) {
1431: if (formname.coursepick[i].value == 'category') {
1432: formname.coursepick[i].checked = true;
1433: }
1434: formname.coursetotal.value = 0;
1435: formname.courselist = '';
1436: }
1437: }
1438: </script>
1439: |;
1440: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1441: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1442: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses').'<br />';
1443: if ($totcodes > 0) {
1444: my $numtitles = @$codetitles;
1445: if ($numtitles > 0) {
1446: $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 />';
1447: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1448: '<select name="'.$$codetitles[0].
1449: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1450: ' <option value="-1" />Select'."\n";
1451: my @items = ();
1452: my @longitems = ();
1453: if ($$idlist{$$codetitles[0]} =~ /","/) {
1454: @items = split(/","/,$$idlist{$$codetitles[0]});
1455: } else {
1456: $items[0] = $$idlist{$$codetitles[0]};
1457: }
1458: if (defined($$idlist_titles{$$codetitles[0]})) {
1459: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1460: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1461: } else {
1462: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1463: }
1464: for (my $i=0; $i<@longitems; $i++) {
1465: if ($longitems[$i] eq '') {
1466: $longitems[$i] = $items[$i];
1467: }
1468: }
1469: } else {
1470: @longitems = @items;
1471: }
1472: for (my $i=0; $i<@items; $i++) {
1473: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1474: }
1475: $output .= '</select></td>';
1476: for (my $i=1; $i<$numtitles; $i++) {
1477: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1478: '<select name="'.$$codetitles[$i].
1479: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1480: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1481: '</select>'."\n".
1482: '</td>';
1483: }
1484: $output .= '</tr></table><br />';
1485: }
1486: }
1487: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."'".','."'".'dccourse'."'".','."'".'dcdomain'."'".','."'".'coursedesc'."','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br /></td>'."\n";
1488: $output .= &row_closure();
1489: return $output;
1490: }
1491:
1492: sub status_select_row {
1493: my ($types,$col_width,$tablecolor,$title) = @_;
1494: my $output;
1495: if (defined($title)) {
1496: $output = &row_title($col_width,$tablecolor,$title);
1497: }
1498: $output .= qq| <td valign="top">
1499: <select name="types" multiple>\n|;
1500: foreach my $status_type (sort(keys(%{$types}))) {
1501: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1502: }
1503: $output .= qq| </select>
1504: </td>\n|;
1505: if (defined($title)) {
1506: $output .= &row_closure();
1507: }
1508: return $output;
1509: }
1510:
1511: sub email_default_row {
1512: my ($authtypes,$col_width,$tablecolor,$title,$descrip) = @_;
1513: my $output = &row_title($col_width,$tablecolor,$title);
1514: my @rowcols = ('#eeeeee','#dddddd');
1515: $output .= ' <td>'.$descrip;
1516: $output .= &start_pick_box('');
1517: $output .= ' <tr bgcolor="'.$tablecolor.'">
1518: <td><b>'.&mt('Authentication Method').'</b></td><td align="right"><b>'.&mt('Username -> e-mail conversion').'</b></td>
1519: </tr>'."\n";
1520: my $rownum = 0;
1521: foreach my $auth (sort(keys(%{$authtypes}))) {
1522: my ($userentry,$size);
1523: my $rowiter = $rownum%2;
1524: if ($auth =~ /^krb/) {
1525: $userentry = '';
1526: $size = 25;
1527: } else {
1528: $userentry = 'username@';
1529: $size = 15;
1530: }
1531: $output .= '<tr bgcolor="'.$rowcols[$rowiter].'"><td> '.$$authtypes{$auth}.'</td><td align="right">'.$userentry.'<input type="text" name="'.$auth.'" size="'.$size.'" /></td></tr>';
1532: $rownum ++;
1533: }
1534: $output .= &end_pick_box();
1535: $output .= " <br /></td>\n";
1536: $output .= &row_closure();
1537: return $output;
1538: }
1539:
1540:
1541: sub submit_row {
1542: my ($col_width,$tablecolor,$title,$cmd,$submit_text) = @_;
1543: my $output = &row_title($col_width,$tablecolor,$title);
1544: $output .= qq|
1545: <td width="100%" valign="top" align="right">
1546: <br />
1547: <input type="hidden" name="command" value="$cmd" />
1548: <input type="submit" value="$submit_text"/>
1549: <br /><br />
1550: </td>\n|;
1551: return $output;
1552: }
1553:
1554: ##############################################
1555: ##############################################
1556:
1557: # echo_form_input
1558: #
1559: # Generates html markup to add form elements from the referrer page
1560: # as hidden form elements (values encoded) in the new page.
1561: #
1562: # Intended to support two types of use
1563: # (a) to allow backing up to earlier pages in a multi-page
1564: # form submission process using a breadcrumb trail.
1565: #
1566: # (b) to allow the current page to be reloaded with form elements
1567: # set on previous page to remain unchanged. An example would
1568: # be where the a page containing a dynamically-built table of data is
1569: # is to be redisplayed, with only the sort order of the data changed.
1570: #
1571: # Inputs:
1572: # 1. Reference to array of form elements in the submitted form on
1573: # the referrer page which are to be excluded from the echoed elements.
1574: #
1575: # 2. Reference to array of regular expressions, which if matched in the
1576: # name of the form element n the referrer page will be omitted from echo.
1577: #
1578: # Outputs: A scalar containing the html markup for the echoed form
1579: # elements (all as hidden elements, with values encoded).
1580:
1581:
1582: sub echo_form_input {
1583: my ($excluded,$regexps) = @_;
1584: my $output = '';
1585: foreach my $key (keys(%env)) {
1586: if ($key =~ /^form\.(.+)$/) {
1587: my $name = $1;
1588: my $match = 0;
1589: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1590: if (defined($regexps)) {
1591: if (@{$regexps} > 0) {
1592: foreach my $regexp (@{$regexps}) {
1593: if ($name =~ /\Q$regexp\E/) {
1594: $match = 1;
1595: last;
1596: }
1597: }
1598: }
1599: }
1600: if (!$match) {
1601: if (ref($env{$key})) {
1602: foreach my $value (@{$env{$key}}) {
1603: $value = &HTML::Entities::encode($value,'<>&"');
1604: $output .= '<input type="hidden" name="'.$name.
1605: '" value="'.$value.'" />'."\n";
1606: }
1607: } else {
1608: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1609: $output .= '<input type="hidden" name="'.$name.
1610: '" value="'.$value.'" />'."\n";
1611: }
1612: }
1613: }
1614: }
1615: }
1616: return $output;
1617: }
1618:
1619: ##############################################
1620: ##############################################
1621:
1622: # set_form_elements
1623: #
1624: # Generates javascript to set form elements to values based on
1625: # corresponding values for the same form elements when the page was
1626: # previously submitted.
1627: #
1628: # Last submission values are read from hidden form elements in referring
1629: # page which have the same name, i.e., generated by &echo_form_input().
1630: #
1631: # Intended to be called by onload event.
1632: #
1633: # Inputs:
1634: # (a) Reference to hash of echoed form elements to be set.
1635: #
1636: # In the hash, keys are the form element names, and the values are the
1637: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1638: # hidden).
1639: #
1640: # (b) Optional reference to hash of stored elements to be set.
1641: #
1642: # If the page being displayed is a page which permits modification of
1643: # previously stored data, e.g., the first page in a multi-page submission,
1644: # then if stored is supplied, form elements will be set to the last stored
1645: # values. If user supplied values are also available for the same elements
1646: # these will replace the stored values.
1647: #
1648: # Output:
1649: #
1650: # javascript function - set_form_elements() which sets form elements,
1651: # expects an argument: formname - the name of the form according to
1652: # the DOM, e.g., document.compose
1653:
1654: sub set_form_elements {
1655: my ($elements,$stored) = @_;
1656: my %values;
1657: my $output .= 'function setFormElements(courseForm) {
1658: ';
1659: if (defined($stored)) {
1660: foreach my $name (keys(%{$stored})) {
1661: if (exists($$elements{$name})) {
1662: if (ref($$stored{$name}) eq 'ARRAY') {
1663: $values{$name} = $$stored{$name};
1664: } else {
1665: @{$values{$name}} = ($$stored{$name});
1666: }
1667: }
1668: }
1669: }
1670:
1671: foreach my $key (keys(%env)) {
1672: if ($key =~ /^form\.(.+)$/) {
1673: my $name = $1;
1674: if (exists($$elements{$name})) {
1675: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1676: }
1677: }
1678: }
1679:
1680: foreach my $name (keys(%values)) {
1681: for (my $i=0; $i<@{$values{$name}}; $i++) {
1682: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1683: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1684: $values{$name}[$i] =~ s/"/\\"/g;
1685: }
1686: if ($$elements{$name} eq 'text') {
1687: my $numvalues = @{$values{$name}};
1688: if ($numvalues > 1) {
1689: my $valuestring = join('","',@{$values{$name}});
1690: $output .= qq|
1691: var textvalues = new Array ("$valuestring");
1692: var total = courseForm.$name.length;
1693: if (total > $numvalues) {
1694: total = $numvalues;
1695: }
1696: for (var i=0; i<total; i++) {
1697: courseForm.$name\[i].value = textvalues[i];
1698: }
1699: |;
1700: } else {
1701: $output .= qq|
1702: courseForm.$name.value = "$values{$name}[0]";
1703: |;
1704: }
1705: } else {
1706: $output .= qq|
1707: var elementLength = courseForm.$name.length;
1708: if (elementLength==undefined) {
1709: |;
1710: foreach my $value (@{$values{$name}}) {
1711: if ($$elements{$name} eq 'selectbox') {
1712: $output .= qq|
1713: if (courseForm.$name.options[0].value == "$value") {
1714: courseForm.$name.options[0].selected = true;
1715: }|;
1716: } elsif (($$elements{$name} eq 'radio') ||
1717: ($$elements{$name} eq 'checkbox')) {
1718: $output .= qq|
1719: if (courseForm.$name.value == "$value") {
1720: courseForm.$name.checked = true;
1721: }|;
1722: }
1723: }
1724: $output .= qq|
1725: }
1726: else {
1727: for (var i=0; i<courseForm.$name.length; i++) {
1728: |;
1729: if ($$elements{$name} eq 'selectbox') {
1730: $output .= qq|
1731: courseForm.$name.options[i].selected = false;|;
1732: } elsif (($$elements{$name} eq 'radio') ||
1733: ($$elements{$name} eq 'checkbox')) {
1734: $output .= qq|
1735: courseForm.$name\[i].checked = false;|;
1736: }
1737: $output .= qq|
1738: }
1739: for (var j=0; j<courseForm.$name.length; j++) {
1740: |;
1741: foreach my $value (@{$values{$name}}) {
1742: if ($$elements{$name} eq 'selectbox') {
1743: $output .= qq|
1744: if (courseForm.$name.options[j].value == "$value") {
1745: courseForm.$name.options[j].selected = true;
1746: }|;
1747: } elsif (($$elements{$name} eq 'radio') ||
1748: ($$elements{$name} eq 'checkbox')) {
1749: $output .= qq|
1750: if (courseForm.$name\[j].value == "$value") {
1751: courseForm.$name\[j].checked = true;
1752: }|;
1753: }
1754: }
1755: $output .= qq|
1756: }
1757: }
1758: |;
1759: }
1760: }
1761: $output .= "
1762: }\n";
1763: return $output;
1764: }
1765:
1766: 1;
1767:
1768: __END__
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