1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.120 2005/11/21 21:20:06 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ######################################################################
29: ######################################################################
30:
31: =pod
32:
33: =head1 NAME
34:
35: Apache::lonhtmlcommon - routines to do common html things
36:
37: =head1 SYNOPSIS
38:
39: Referenced by other mod_perl Apache modules.
40:
41: =head1 INTRODUCTION
42:
43: lonhtmlcommon is a collection of subroutines used to present information
44: in a consistent html format, or provide other functionality related to
45: html.
46:
47: =head2 General Subroutines
48:
49: =over 4
50:
51: =cut
52:
53: ######################################################################
54: ######################################################################
55:
56: package Apache::lonhtmlcommon;
57:
58: use strict;
59: use Time::Local;
60: use Time::HiRes;
61: use Apache::lonlocal;
62: use Apache::lonnet;
63:
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: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
182: 'value="'.$value.'" '.$special.' />';
183: return $Str;
184: }
185:
186: ##############################################
187: ##############################################
188:
189: =pod
190:
191: =item checkbox
192:
193: =cut
194:
195: ##############################################
196: ##############################################
197: sub checkbox {
198: my ($name,$checked,$value) = @_;
199: my $Str = '<input type="checkbox" name="'.$name.'" ';
200: if (defined($value)) {
201: $Str .= 'value="'.$value.'"';
202: }
203: if ($checked) {
204: $Str .= ' checked="1"';
205: }
206: $Str .= ' />';
207: return $Str;
208: }
209:
210:
211: =pod
212:
213: =item radiobutton
214:
215: =cut
216:
217: ##############################################
218: ##############################################
219: sub radio {
220: my ($name,$checked,$value) = @_;
221: my $Str = '<input type="radio" name="'.$name.'" ';
222: if (defined($value)) {
223: $Str .= 'value="'.$value.'"';
224: }
225: if ($checked eq $value) {
226: $Str .= ' checked="1"';
227: }
228: $Str .= ' />';
229: return $Str;
230: }
231:
232: ##############################################
233: ##############################################
234:
235: =pod
236:
237: =item &date_setter
238:
239: &date_setter returns html and javascript for a compact date-setting form.
240: To retrieve values from it, use &get_date_from_form().
241:
242: Inputs
243:
244: =over 4
245:
246: =item $dname
247:
248: The name to prepend to the form elements.
249: The form elements defined will be dname_year, dname_month, dname_day,
250: dname_hour, dname_min, and dname_sec.
251:
252: =item $currentvalue
253:
254: The current setting for this time parameter. A unix format time
255: (time in seconds since the beginning of Jan 1st, 1970, GMT.
256: An undefined value is taken to indicate the value is the current time.
257: Also, to be explicit, a value of 'now' also indicates the current time.
258:
259: =item $special
260:
261: Additional html/javascript to be associated with each element in
262: the date_setter. See lonparmset for example usage.
263:
264: =item $includeempty
265:
266: =item $state
267:
268: Specifies the initial state of the form elements. Either 'disabled' or empty.
269: Defaults to empty, which indiciates the form elements are not disabled.
270:
271: =back
272:
273: Bugs
274:
275: The method used to restrict user input will fail in the year 2400.
276:
277: =cut
278:
279: ##############################################
280: ##############################################
281: sub date_setter {
282: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
283: $no_hh_mm_ss,$defhour,$defmin,$defsec) = @_;
284: my $wasdefined=1;
285: if (! defined($state) || $state ne 'disabled') {
286: $state = '';
287: }
288: if (! defined($no_hh_mm_ss)) {
289: $no_hh_mm_ss = 0;
290: }
291: if ($currentvalue eq 'now') {
292: $currentvalue=time;
293: }
294: if ((!defined($currentvalue)) || ($currentvalue eq '')) {
295: $wasdefined=0;
296: if ($includeempty) {
297: $currentvalue = 0;
298: } else {
299: $currentvalue = time;
300: }
301: }
302: # other potentially useful values: wkday,yrday,is_daylight_savings
303: my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
304: if ($currentvalue) {
305: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
306: localtime($currentvalue);
307: $year += 1900;
308: }
309: unless ($wasdefined) {
310: if (($defhour) || ($defmin) || ($defsec)) {
311: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
312: localtime(time);
313: $year += 1900;
314: $sec=($defsec?$defsec:0);
315: $min=($defmin?$defmin:0);
316: $hour=($defhour?$defhour:0);
317: } elsif (!$includeempty) {
318: $sec=0;
319: $min=0;
320: $hour=0;
321: }
322: }
323: my $result = "\n<!-- $dname date setting form -->\n";
324: $result .= <<ENDJS;
325: <script language="Javascript">
326: function $dname\_checkday() {
327: var day = document.$formname.$dname\_day.value;
328: var month = document.$formname.$dname\_month.value;
329: var year = document.$formname.$dname\_year.value;
330: var valid = true;
331: if (day < 1) {
332: document.$formname.$dname\_day.value = 1;
333: }
334: if (day > 31) {
335: document.$formname.$dname\_day.value = 31;
336: }
337: if ((month == 1) || (month == 3) || (month == 5) ||
338: (month == 7) || (month == 8) || (month == 10) ||
339: (month == 12)) {
340: if (day > 31) {
341: document.$formname.$dname\_day.value = 31;
342: day = 31;
343: }
344: } else if (month == 2 ) {
345: if ((year % 4 == 0) && (year % 100 != 0)) {
346: if (day > 29) {
347: document.$formname.$dname\_day.value = 29;
348: }
349: } else if (day > 29) {
350: document.$formname.$dname\_day.value = 28;
351: }
352: } else if (day > 30) {
353: document.$formname.$dname\_day.value = 30;
354: }
355: }
356:
357: function $dname\_disable() {
358: document.$formname.$dname\_month.disabled=true;
359: document.$formname.$dname\_day.disabled=true;
360: document.$formname.$dname\_year.disabled=true;
361: document.$formname.$dname\_hour.disabled=true;
362: document.$formname.$dname\_minute.disabled=true;
363: document.$formname.$dname\_second.disabled=true;
364: }
365:
366: function $dname\_enable() {
367: document.$formname.$dname\_month.disabled=false;
368: document.$formname.$dname\_day.disabled=false;
369: document.$formname.$dname\_year.disabled=false;
370: document.$formname.$dname\_hour.disabled=false;
371: document.$formname.$dname\_minute.disabled=false;
372: document.$formname.$dname\_second.disabled=false;
373: }
374:
375: function $dname\_opencalendar() {
376: if (! document.$formname.$dname\_month.disabled) {
377: var calwin=window.open(
378: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
379: document.$formname.$dname\_month.value+"&year="+
380: document.$formname.$dname\_year.value,
381: "LONCAPAcal",
382: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
383: }
384:
385: }
386: </script>
387: ENDJS
388: $result .= ' <nobr>';
389: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
390: # Month
391: my @Months = qw/January February March April May June
392: July August September October November December/;
393: # Pad @Months with a bogus value to make indexing easier
394: unshift(@Months,'If you can read this an error occurred');
395: if ($includeempty) { $monthselector.="<option value=''></option>"; }
396: for(my $m = 1;$m <=$#Months;$m++) {
397: $monthselector .= qq{ <option value="$m" };
398: $monthselector .= "selected " if ($m-1 eq $month);
399: $monthselector .= '> '.&mt($Months[$m]).' </option>';
400: }
401: $monthselector.= ' </select>';
402: # Day
403: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
404: # Year
405: my $yearselector = qq{<input type="year" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
406: #
407: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
408: if ($includeempty) {
409: $hourselector.=qq{<option value=''></option>};
410: }
411: for (my $h = 0;$h<24;$h++) {
412: $hourselector .= qq{<option value="$h" };
413: $hourselector .= "selected " if (defined($hour) && $hour == $h);
414: $hourselector .= ">";
415: my $timest='';
416: if ($h == 0) {
417: $timest .= "12 am";
418: } elsif($h == 12) {
419: $timest .= "12 noon";
420: } elsif($h < 12) {
421: $timest .= "$h am";
422: } else {
423: $timest .= $h-12 ." pm";
424: }
425: $timest=&mt($timest);
426: $hourselector .= $timest." </option>\n";
427: }
428: $hourselector .= " </select>\n";
429: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
430: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
431: my $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
432: #
433: if ($no_hh_mm_ss) {
434: $result .= &mt('[_1] [_2] [_3] [_4]Select Date[_5]',
435: $monthselector,$dayselector,$yearselector,
436: $cal_link,'</a>');
437: } else {
438: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s [_7]Select Date[_8]',
439: $monthselector,$dayselector,$yearselector,
440: $hourselector,$minuteselector,$secondselector,
441: $cal_link,'</a>');
442: }
443: $result .= "</nobr>\n<!-- end $dname date setting form -->\n";
444: return $result;
445: }
446:
447: ##############################################
448: ##############################################
449:
450: =pod
451:
452: =item &get_date_from_form
453:
454: get_date_from_form retrieves the date specified in an &date_setter form.
455:
456: Inputs:
457:
458: =over 4
459:
460: =item $dname
461:
462: The name passed to &datesetter, which prefixes the form elements.
463:
464: =item $defaulttime
465:
466: The unix time to use as the default in case of poor inputs.
467:
468: =back
469:
470: Returns: Unix time represented in the form.
471:
472: =cut
473:
474: ##############################################
475: ##############################################
476: sub get_date_from_form {
477: my ($dname) = @_;
478: my ($sec,$min,$hour,$day,$month,$year);
479: #
480: if (defined($env{'form.'.$dname.'_second'})) {
481: my $tmpsec = $env{'form.'.$dname.'_second'};
482: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
483: $sec = $tmpsec;
484: }
485: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
486: } else {
487: $sec = 0;
488: }
489: if (defined($env{'form.'.$dname.'_minute'})) {
490: my $tmpmin = $env{'form.'.$dname.'_minute'};
491: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
492: $min = $tmpmin;
493: }
494: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
495: } else {
496: $min = 0;
497: }
498: if (defined($env{'form.'.$dname.'_hour'})) {
499: my $tmphour = $env{'form.'.$dname.'_hour'};
500: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
501: $hour = $tmphour;
502: }
503: } else {
504: $hour = 0;
505: }
506: if (defined($env{'form.'.$dname.'_day'})) {
507: my $tmpday = $env{'form.'.$dname.'_day'};
508: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
509: $day = $tmpday;
510: }
511: }
512: if (defined($env{'form.'.$dname.'_month'})) {
513: my $tmpmonth = $env{'form.'.$dname.'_month'};
514: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
515: $month = $tmpmonth - 1;
516: }
517: }
518: if (defined($env{'form.'.$dname.'_year'})) {
519: my $tmpyear = $env{'form.'.$dname.'_year'};
520: if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
521: $year = $tmpyear - 1900;
522: }
523: }
524: if (($year<70) || ($year>137)) { return undef; }
525: if (defined($sec) && defined($min) && defined($hour) &&
526: defined($day) && defined($month) && defined($year) &&
527: eval(&timelocal($sec,$min,$hour,$day,$month,$year))) {
528: return &timelocal($sec,$min,$hour,$day,$month,$year);
529: } else {
530: return undef;
531: }
532: }
533:
534: ##############################################
535: ##############################################
536:
537: =pod
538:
539: =item &pjump_javascript_definition()
540:
541: Returns javascript defining the 'pjump' function, which opens up a
542: parameter setting wizard.
543:
544: =cut
545:
546: ##############################################
547: ##############################################
548: sub pjump_javascript_definition {
549: my $Str = <<END;
550: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
551: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
552: +"&value="+escape(value)+"&marker="+escape(marker)
553: +"&return="+escape(ret)
554: +"&call="+escape(call)+"&name="+escape(dis)
555: +"&defhour="+escape(hour)+"&defmin="+escape(min)
556: +"&defsec="+escape(sec),"LONCAPAparms",
557: "height=350,width=350,scrollbars=no,menubar=no");
558: }
559: END
560: return $Str;
561: }
562:
563: ##############################################
564: ##############################################
565:
566: =pod
567:
568: =item &javascript_nothing()
569:
570: Return an appropriate null for the users browser. This is used
571: as the first arguement for window.open calls when you want a blank
572: window that you can then write to.
573:
574: =cut
575:
576: ##############################################
577: ##############################################
578: sub javascript_nothing {
579: # mozilla and other browsers work with "''", but IE on mac does not.
580: my $nothing = "''";
581: my $user_browser;
582: my $user_os;
583: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
584: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
585: if (! defined($user_browser) || ! defined($user_os)) {
586: (undef,$user_browser,undef,undef,undef,$user_os) =
587: &Apache::loncommon::decode_user_agent();
588: }
589: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
590: $nothing = "'javascript:void(0);'";
591: }
592: return $nothing;
593: }
594:
595: ##############################################
596: ##############################################
597: sub javascript_docopen {
598: # safari does not understand document.open() and loads "text/html"
599: my $nothing = "''";
600: my $user_browser;
601: my $user_os;
602: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
603: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
604: if (! defined($user_browser) || ! defined($user_os)) {
605: (undef,$user_browser,undef,undef,undef,$user_os) =
606: &Apache::loncommon::decode_user_agent();
607: }
608: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
609: $nothing = "document.clear()";
610: } else {
611: $nothing = "document.open('text/html','replace')";
612: }
613: return $nothing;
614: }
615:
616:
617: ##############################################
618: ##############################################
619:
620: =pod
621:
622: =item &StatusOptions()
623:
624: Returns html for a selection box which allows the user to choose the
625: enrollment status of students. The selection box name is 'Status'.
626:
627: Inputs:
628:
629: $status: the currently selected status. If undefined the value of
630: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
631: is used.
632:
633: $formname: The name of the form. If defined the onchange attribute of
634: the selection box is set to document.$formname.submit().
635:
636: $size: the size (number of lines) of the selection box.
637:
638: $onchange: javascript to use when the value is changed. Enclosed in
639: double quotes, ""s, not single quotes.
640:
641: Returns: a perl string as described.
642:
643: =cut
644:
645: ##############################################
646: ##############################################
647: sub StatusOptions {
648: my ($status, $formName,$size,$onchange)=@_;
649: $size = 1 if (!defined($size));
650: if (! defined($status)) {
651: $status = 'Active';
652: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
653: }
654:
655: my $OpSel1 = '';
656: my $OpSel2 = '';
657: my $OpSel3 = '';
658:
659: if($status eq 'Any') { $OpSel3 = ' selected'; }
660: elsif($status eq 'Expired' ) { $OpSel2 = ' selected'; }
661: else { $OpSel1 = ' selected'; }
662:
663: my $Str = '';
664: $Str .= '<select name="Status"';
665: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
666: $Str .= ' onchange="document.'.$formName.'.submit()"';
667: }
668: if (defined($onchange)) {
669: $Str .= ' onchange="'.$onchange.'"';
670: }
671: $Str .= ' size="'.$size.'" ';
672: $Str .= '>'."\n";
673: $Str .= '<option value="Active" '.$OpSel1.'>'.
674: &mt('Currently Enrolled').'</option>'."\n";
675: $Str .= '<option value="Expired" '.$OpSel2.'>'.
676: &mt('Previously Enrolled').'</option>'."\n";
677: $Str .= '<option value="Any" '.$OpSel3.'>'.
678: &mt('Any Enrollment Status').'</option>'."\n";
679: $Str .= '</select>'."\n";
680: }
681:
682: ########################################################
683: ########################################################
684:
685: =pod
686:
687: =item Progess Window Handling Routines
688:
689: These routines handle the creation, update, increment, and closure of
690: progress windows. The progress window reports to the user the number
691: of items completed and an estimate of the time required to complete the rest.
692:
693: =over 4
694:
695:
696: =item &Create_PrgWin
697:
698: Writes javascript to the client to open a progress window and returns a
699: data structure used for bookkeeping.
700:
701: Inputs
702:
703: =over 4
704:
705: =item $r Apache request
706:
707: =item $title The title of the progress window
708:
709: =item $heading A description (usually 1 line) of the process being initiated.
710:
711: =item $number_to_do The total number of items being processed.
712:
713: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
714: specified)
715:
716: =item $width Specify the width in charaters of the input field.
717:
718: =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
719:
720: =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
721:
722: =back
723:
724: Returns a hash containing the progress state data structure.
725:
726:
727: =item &Update_PrgWin
728:
729: Updates the text in the progress indicator. Does not increment the count.
730: See &Increment_PrgWin.
731:
732: Inputs:
733:
734: =over 4
735:
736: =item $r Apache request
737:
738: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
739:
740: =item $displaystring The string to write to the status indicator
741:
742: =back
743:
744: Returns: none
745:
746:
747: =item Increment_PrgWin
748:
749: Increment the count of items completed for the progress window by 1.
750:
751: Inputs:
752:
753: =over 4
754:
755: =item $r Apache request
756:
757: =item $prog_state Pointer to the data structure returned by Create_PrgWin
758:
759: =item $extraInfo A description of the items being iterated over. Typically
760: 'student'.
761:
762: =back
763:
764: Returns: none
765:
766:
767: =item Close_PrgWin
768:
769: Closes the progress window.
770:
771: Inputs:
772:
773: =over 4
774:
775: =item $r Apache request
776:
777: =item $prog_state Pointer to the data structure returned by Create_PrgWin
778:
779: =back
780:
781: Returns: none
782:
783: =back
784:
785: =cut
786:
787: ########################################################
788: ########################################################
789:
790: my $uniq=0;
791: sub get_uniq_name {
792: $uniq++;
793: return 'uniquename'.$uniq;
794: }
795:
796: # Create progress
797: sub Create_PrgWin {
798: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
799: $inputname)=@_;
800: if (!defined($type)) { $type='popup'; }
801: if (!defined($width)) { $width=55; }
802: my %prog_state;
803: $prog_state{'type'}=$type;
804: if ($type eq 'popup') {
805: $prog_state{'window'}='popwin';
806: my $html=&Apache::lonxml::xmlbegin();
807: #the whole function called through timeout is due to issues
808: #in mozilla Read BUG #2665 if you want to know the whole story
809: &r_print($r,'<script>'.
810: "var popwin;
811: function openpopwin () {
812: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
813: "popwin.document.writeln(\'".$html."<head><title>$title</title></head>".
814: "<body bgcolor=\"#88DDFF\">".
815: "<h4>$heading</h4>".
816: "<form name=popremain>".
817: '<input type="text" size="'.$width.'" name="remaining" value="'.
818: &mt('Starting').'"></form>'.
819: "</body></html>\');".
820: "popwin.document.close();}".
821: "\nwindow.setTimeout(openpopwin,0)</script>");
822: $prog_state{'formname'}='popremain';
823: $prog_state{'inputname'}="remaining";
824: } elsif ($type eq 'inline') {
825: $prog_state{'window'}='window';
826: if (!$formname) {
827: $prog_state{'formname'}=&get_uniq_name();
828: &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
829: } else {
830: $prog_state{'formname'}=$formname;
831: }
832: if (!$inputname) {
833: $prog_state{'inputname'}=&get_uniq_name();
834: &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
835: '" size="'.$width.'" />');
836: } else {
837: $prog_state{'inputname'}=$inputname;
838:
839: }
840: if (!$formname) { &r_print($r,'</form>'); }
841: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
842: }
843:
844: $prog_state{'done'}=0;
845: $prog_state{'firststart'}=&Time::HiRes::time();
846: $prog_state{'laststart'}=&Time::HiRes::time();
847: $prog_state{'max'}=$number_to_do;
848:
849: return %prog_state;
850: }
851:
852: # update progress
853: sub Update_PrgWin {
854: my ($r,$prog_state,$displayString)=@_;
855: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
856: $$prog_state{'formname'}.'.'.
857: $$prog_state{'inputname'}.'.value="'.
858: $displayString.'";</script>');
859: $$prog_state{'laststart'}=&Time::HiRes::time();
860: }
861:
862: # increment progress state
863: sub Increment_PrgWin {
864: my ($r,$prog_state,$extraInfo)=@_;
865: $$prog_state{'done'}++;
866: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
867: $$prog_state{'done'} *
868: ($$prog_state{'max'}-$$prog_state{'done'});
869: $time_est = int($time_est);
870: #
871: my $min = int($time_est/60);
872: my $sec = $time_est % 60;
873: #
874: my $str;
875: if ($min == 0 && $sec > 1) {
876: $str = '[_2] seconds';
877: } elsif ($min == 1 && $sec > 1) {
878: $str = '1 minute [_2] seconds';
879: } elsif ($min == 1 && $sec < 2) {
880: $str = '1 minute';
881: } elsif ($min < 10 && $sec > 1) {
882: $str = '[_1] minutes, [_2] seconds';
883: } elsif ($min >= 10 || $sec < 2) {
884: $str = '[_1] minutes';
885: }
886: $time_est = &mt($str,$min,$sec);
887: #
888: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
889: if ($lasttime > 9) {
890: $lasttime = int($lasttime);
891: } elsif ($lasttime < 0.01) {
892: $lasttime = 0;
893: } else {
894: $lasttime = sprintf("%3.2f",$lasttime);
895: }
896: if ($lasttime == 1) {
897: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
898: } else {
899: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
900: }
901: #
902: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
903: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
904: if (! defined($user_browser) || ! defined($user_os)) {
905: (undef,$user_browser,undef,undef,undef,$user_os) =
906: &Apache::loncommon::decode_user_agent();
907: }
908: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
909: $lasttime = '';
910: }
911: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
912: $$prog_state{'formname'}.'.'.
913: $$prog_state{'inputname'}.'.value="'.
914: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
915: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
916: $$prog_state{'laststart'}=&Time::HiRes::time();
917: }
918:
919: # close Progress Line
920: sub Close_PrgWin {
921: my ($r,$prog_state)=@_;
922: if ($$prog_state{'type'} eq 'popup') {
923: &r_print($r,'<script>popwin.close()</script>'."\n");
924: } elsif ($$prog_state{'type'} eq 'inline') {
925: &Update_PrgWin($r,$prog_state,&mt('Done'));
926: }
927: undef(%$prog_state);
928: }
929:
930: sub r_print {
931: my ($r,$to_print)=@_;
932: if ($r) {
933: $r->print($to_print);
934: $r->rflush();
935: } else {
936: print($to_print);
937: }
938: }
939:
940: # ------------------------------------------------------- Puts directory header
941:
942: sub crumbs {
943: my ($uri,$target,$prefix,$form,$size,$noformat)=@_;
944: if (! defined($size)) {
945: $size = '+2';
946: }
947: if ($target) {
948: $target = ' target="'.
949: &Apache::loncommon::escape_single($target).'"';
950: }
951: my $output='';
952: unless ($noformat) { $output.='<br /><tt><b>'; }
953: $output.='<font size="'.$size.'">'.$prefix.'/';
954: if ($env{'user.adv'}) {
955: my $path=$prefix.'/';
956: foreach my $dir (split('/',$uri)) {
957: if (! $dir) { next; }
958: $path .= $dir;
959: unless ($path eq $uri) { $path.='/'; }
960: my $linkpath = &Apache::loncommon::escape_single($path);
961: if ($form) {
962: $linkpath=
963: qq{javascript:$form.action='$linkpath';$form.submit();};
964: }
965: $output.=qq{<a href="$linkpath" $target>$dir</a>/};
966: }
967: } else {
968: $output.=$uri;
969: }
970: unless ($uri=~/\/$/) { $output=~s/\/$//; }
971: return $output.'</font>'.($noformat?'':'</b></tt><br />');
972: }
973:
974: # --------------------- A function that generates a window for the spellchecker
975:
976: sub spellheader {
977: my $html=&Apache::lonxml::xmlbegin();
978: my $nothing=&javascript_nothing();
979: return (<<ENDCHECK);
980: <script type="text/javascript">
981: //<!-- BEGIN LON-CAPA Internal
982: var checkwin;
983:
984: function spellcheckerwindow() {
985: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
986: checkwin.document.writeln('$html<head></head><body bgcolor="#DDDDDD"><form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="" /></form></body></html>');
987: checkwin.document.close();
988: }
989: // END LON-CAPA Internal -->
990: </script>
991: ENDCHECK
992: }
993:
994: # ---------------------------------- Generate link to spell checker for a field
995:
996: sub spelllink {
997: my ($form,$field)=@_;
998: my $linktext=&mt('Check Spelling');
999: return (<<ENDLINK);
1000: <a href="javascript:if (typeof(document.$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>
1001: ENDLINK
1002: }
1003:
1004: # ------------------------------------------------- Output headers for HTMLArea
1005:
1006: sub htmlareaheaders {
1007: if (&htmlareablocked()) { return ''; }
1008: unless (&htmlareabrowser()) { return ''; }
1009: my $lang='en';
1010: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1011: $lang=&mt('htmlarea_lang');
1012: }
1013: return (<<ENDHEADERS);
1014: <script type="text/javascript">
1015: _editor_url='/htmlarea/';
1016: _editor_lang='$lang';
1017: </script>
1018: <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
1019: ENDHEADERS
1020: }
1021:
1022: # ------------------------------------------------- Activate additional buttons
1023:
1024: sub htmlareaaddbuttons {
1025: if (&htmlareablocked()) { return ''; }
1026: unless (&htmlareabrowser()) { return ''; }
1027: return (<<ENDADDBUTTON);
1028: var config=new HTMLArea.Config();
1029: config.registerButton('ed_math','LaTeX Inline',
1030: '/htmlarea/images/ed_math.gif',false,
1031: function(editor,id) {
1032: editor.surroundHTML(' <m>\$','\$</m> ');
1033: }
1034: );
1035: config.registerButton('ed_math_eqn','LaTeX Equation',
1036: '/htmlarea/images/ed_math_eqn.gif',false,
1037: function(editor,id) {
1038: editor.surroundHTML(
1039: ' \\n<center><m>\\\\[','\\\\]</m></center>\\n ');
1040: }
1041: );
1042: config.toolbar.push(['ed_math','ed_math_eqn']);
1043: ENDADDBUTTON
1044: }
1045:
1046: # ----------------------------------------------------------------- Preferences
1047:
1048: sub disablelink {
1049: my @fields=@_;
1050: if (defined($#fields)) {
1051: unless ($#fields>=0) { return ''; }
1052: }
1053: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&Apache::lonnet::escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1054: }
1055:
1056: sub enablelink {
1057: my @fields=@_;
1058: if (defined($#fields)) {
1059: unless ($#fields>=0) { return ''; }
1060: }
1061: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&Apache::lonnet::escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1062: }
1063:
1064: # ----------------------------------------- Script to activate only some fields
1065:
1066: sub htmlareaselectactive {
1067: my @fields=@_;
1068: unless (&htmlareabrowser()) { return ''; }
1069: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1070: my $output='<script type="text/javascript" defer="1">'.
1071: &htmlareaaddbuttons();
1072: foreach(@fields) {
1073: $output.="\nHTMLArea.replace('$_',config);";
1074: }
1075: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1076: &disablelink(@fields);
1077: return $output;
1078: }
1079:
1080: # --------------------------------------------------------------------- Blocked
1081:
1082: sub htmlareablocked {
1083: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1084: return 0;
1085: }
1086:
1087: # ---------------------------------------- Browser capable of running HTMLArea?
1088:
1089: sub htmlareabrowser {
1090: return 1;
1091: }
1092:
1093: ############################################################
1094: ############################################################
1095:
1096: =pod
1097:
1098: =item breadcrumbs
1099:
1100: Compiles the previously registered breadcrumbs into an series of links.
1101: FAQ and BUG links will be placed on the left side of the table if they
1102: are defined for the last registered breadcrumb.
1103: Additionally supports a 'component', which will be displayed on the
1104: right side of the table (without a link).
1105: A link to help for the component will be included if one is specified.
1106:
1107: All inputs can be undef without problems.
1108:
1109: Inputs: $color (the background color of the table returned),
1110: $component (the large text on the right side of the table),
1111: $component_help
1112: $function (role to get colors from)
1113: $domain (domian of role)
1114: $menulink (boolean, controls whether to include a link to /adm/menu)
1115:
1116: Returns a string containing breadcrumbs for the current page.
1117:
1118: =item clear_breadcrumbs
1119:
1120: Clears the previously stored breadcrumbs.
1121:
1122: =item add_breadcrumb
1123:
1124: Pushes a breadcrumb on the stack of crumbs.
1125:
1126: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1127: are required. If present the keys 'faq' and 'bug' will be used to provide
1128: links to the FAQ and bug sites.
1129:
1130: returns: nothing
1131:
1132: =cut
1133:
1134: ############################################################
1135: ############################################################
1136: {
1137: my @Crumbs;
1138:
1139: sub breadcrumbs {
1140: my ($color,$component,$component_help,$function,$domain,$menulink,
1141: $helplink) = @_;
1142: if (! defined($color)) {
1143: if (! defined($function)) {
1144: $function = &Apache::loncommon::get_users_function();
1145: }
1146: $color = &Apache::loncommon::designparm($function.'.tabbg',
1147: $domain);
1148: }
1149: #
1150: my $Str = "\n".
1151: '<table width="100%" border="0" cellpadding="0" cellspacing="0">'.
1152: '<tr><td bgcolor="'.$color.'">'.
1153: '<font size="-1">';
1154: #
1155: # Make the faq and bug data cascade
1156: my $faq = '';
1157: my $bug = '';
1158: my $help='';
1159: # The last breadcrumb does not have a link, so handle it separately.
1160: my $last = pop(@Crumbs);
1161: #
1162: # The first one should be the course or a menu link
1163: if (!defined($menulink)) { $menulink=1; }
1164: if ($menulink) {
1165: my $description = 'Menu';
1166: if (exists($env{'request.course.id'}) &&
1167: $env{'request.course.id'} ne '') {
1168: $description =
1169: $env{'course.'.$env{'request.course.id'}.'.description'};
1170: }
1171: unshift(@Crumbs,{
1172: href =>'/adm/menu',
1173: title =>'Go to main menu',
1174: target =>'_top',
1175: text =>$description,
1176: });
1177: }
1178: my $links .=
1179: join('->',
1180: map {
1181: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1182: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1183: $help = $_->{'help'} if (exists($_->{'help'}));
1184: my $result = '<a href="'.$_->{'href'}.'" ';
1185: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1186: $result .= 'target="'.$_->{'target'}.'" ';
1187: }
1188: $result .='title="'.&mt($_->{'title'}).'">'.
1189: &mt($_->{'text'}).'</a>';
1190: $result;
1191: } @Crumbs
1192: );
1193: $links .= '->' if ($links ne '');
1194: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1195: #
1196: my $icons = '';
1197: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1198: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1199: $help = $last->{'help'} if (exists($last->{'help'}));
1200: $component_help=($component_help?$component_help:$help);
1201: # if ($faq ne '') {
1202: # $icons .= &Apache::loncommon::help_open_faq($faq);
1203: # }
1204: # if ($bug ne '') {
1205: # $icons .= &Apache::loncommon::help_open_bug($bug);
1206: # }
1207: if ($helplink ne 'nohelp') {
1208: $icons .= &Apache::loncommon::help_open_menu($color,$component,$component_help,$function,$faq,$bug);
1209: }
1210: if ($icons ne '') {
1211: $Str .= $icons.' ';
1212: }
1213: #
1214: $Str .= $links.'</font></td>';
1215: #
1216: if (defined($component)) {
1217: $Str .= '<td align="right" bgcolor="'.$color.'">'.
1218: '<font size="+1">'.&mt($component).'</font></td>';
1219: }
1220: $Str .= '</tr></table>'."\n";
1221: #
1222: # Return the @Crumbs stack to what we started with
1223: push(@Crumbs,$last);
1224: shift(@Crumbs);
1225: #
1226: return $Str;
1227: }
1228:
1229: sub clear_breadcrumbs {
1230: undef(@Crumbs);
1231: }
1232:
1233: sub add_breadcrumb {
1234: push (@Crumbs,@_);
1235: }
1236:
1237: } # End of scope for @Crumbs
1238:
1239: ############################################################
1240: ############################################################
1241:
1242: # Nested table routines.
1243: #
1244: # Routines to display form items in a multi-row table with 2 columns.
1245: # Uses nested tables to divide form elements into segments.
1246: # For examples of use see loncom/interface/lonnotify.pm
1247: #
1248: # Can be used in following order: ...
1249: # &start_pick_box()
1250: # row1
1251: # row2
1252: # row3 ... etc.
1253: # &submit_row(0
1254: # &end_pickbox()
1255: #
1256: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1257: # &status_select_row and &email_default_row
1258: #
1259: # Can also be used in following order:
1260: #
1261: # &start_pick_box()
1262: # &row_title()
1263: # &row_closure()
1264: # &row_title()
1265: # &row_closure() ... etc.
1266: # &submit_row()
1267: # &end_pick_box()
1268: #
1269: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1270: # as this routine adds a button for form submission.
1271: # &submit_row() does not require a &row_closure after it.
1272: #
1273: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1274: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1275: #
1276: # &row_title() adds a title in the left column for each segment.
1277: # &row_closure() closes a row with a 1-pixel wide black line.
1278: #
1279: # &role_select_row() provides a select box from which to choose 1 or more roles
1280: # &course_select_row provides ways of picking groups of courses
1281: # radio buttons: all, by category or by picking from a course picker pop-up
1282: # note: by category option is only displayed if a domain has implemented
1283: # selection by year, semester, department, number etc.
1284: #
1285: # &status_select_row() provides a select box from which to choose 1 or more
1286: # access types (current access, prior access, and future access)
1287: #
1288: # &email_default_row() provides text boxes for default e-mail suffixes for
1289: # different authentication types in a domain.
1290: #
1291: # &row_title() and &row_closure() are called internally by the &*_select_row
1292: # routines, but can also be called directly to start and end rows which have
1293: # needs that are not accommodated by the *_select_row() routines.
1294:
1295: sub start_pick_box {
1296: my ($table_width) = @_;
1297: my $output = <<"END";
1298: <table width="$table_width" border="0" cellpadding="0" cellspacing="1" bgcolor="#000000">
1299: <tr>
1300: <td>
1301: <table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#ffffff">
1302: <tr>
1303: <td>
1304: <table width="100%" border="0" cellpadding="0" cellspacing="1" bgcolor="#ffffff">
1305: END
1306: return $output;
1307: }
1308:
1309: sub end_pick_box {
1310: my $output = <<"END";
1311: </table>
1312: </td>
1313: </tr>
1314: </table>
1315: </td>
1316: </tr>
1317: </table>
1318: END
1319: return $output;
1320: }
1321:
1322: sub row_title {
1323: my ($col_width,$tablecolor,$title) = @_;
1324: my $output = <<"ENDONE";
1325: <tr>
1326: <td width="$col_width" bgcolor="$tablecolor">
1327: <table width="$col_width" border="0" cellpadding="8" cellspacing="0">
1328: <tr>
1329: <td align="right"><b>$title:</b>
1330: </td>
1331: </tr>
1332: </table>
1333: </td>
1334: <td width="100%" valign="top">
1335: <table width="100%" border="0" cellpadding="8" cellspacing="0">
1336: <tr>
1337: ENDONE
1338: return $output;
1339: }
1340:
1341: sub row_closure {
1342: my $output = <<"ENDTWO";
1343: </tr>
1344: </table>
1345: </td>
1346: </tr>
1347: <tr>
1348: <td width="100%" colspan="2" bgcolor="#000000">
1349: <img src="/adm/lonMisc/blackdot.gif" /><br />
1350: </td>
1351: </tr>
1352: ENDTWO
1353: return $output;
1354: }
1355:
1356: sub role_select_row {
1357: my ($roles,$col_width,$tablecolor,$title) = @_;
1358: my $output;
1359: if (defined($title)) {
1360: $output = &row_title($col_width,$tablecolor,$title);
1361: }
1362: $output .= qq| <td valign="top">
1363: <select name="roles" multiple >\n|;
1364: foreach my $role (@$roles) {
1365: my $plrole;
1366: if ($role eq 'ow') {
1367: $plrole = &mt('Course Owner');
1368: } else {
1369: $plrole=&Apache::lonnet::plaintext($role);
1370: }
1371: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1372: }
1373: $output .= qq| </select>
1374: </td>\n|;
1375: if (defined($title)) {
1376: $output .= &row_closure();
1377: }
1378: return $output;
1379: }
1380:
1381: sub course_select_row {
1382: my ($col_width,$tablecolor,$title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1383: my $output = &row_title($col_width,$tablecolor,$title);
1384: $output .= " <td>\n";
1385: $output .= qq|
1386: <script type="text/javascript" language="Javascript" >
1387: function coursePick (formname) {
1388: for (var i=0; i<formname.coursepick.length; i++) {
1389: if (formname.coursepick[i].value == 'category') {
1390: courseSet('');
1391: }
1392: if (!formname.coursepick[i].checked) {
1393: if (formname.coursepick[i].value == 'specific') {
1394: formname.coursetotal.value = 0;
1395: formname.courselist = '';
1396: }
1397: }
1398: }
1399: }
1400: function setPick (formname) {
1401: for (var i=0; i<formname.coursepick.length; i++) {
1402: if (formname.coursepick[i].value == 'category') {
1403: formname.coursepick[i].checked = true;
1404: }
1405: formname.coursetotal.value = 0;
1406: formname.courselist = '';
1407: }
1408: }
1409: </script>
1410: |;
1411: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1412: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1413: if ($totcodes > 0) {
1414: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses');
1415: my $numtitles = @$codetitles;
1416: if ($numtitles > 0) {
1417: $output .= '<br /><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 />';
1418: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1419: '<select name="'.$$codetitles[0].
1420: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1421: ' <option value="-1" />Select'."\n";
1422: my @items = ();
1423: my @longitems = ();
1424: if ($$idlist{$$codetitles[0]} =~ /","/) {
1425: @items = split(/","/,$$idlist{$$codetitles[0]});
1426: } else {
1427: $items[0] = $$idlist{$$codetitles[0]};
1428: }
1429: if (defined($$idlist_titles{$$codetitles[0]})) {
1430: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1431: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1432: } else {
1433: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1434: }
1435: for (my $i=0; $i<@longitems; $i++) {
1436: if ($longitems[$i] eq '') {
1437: $longitems[$i] = $items[$i];
1438: }
1439: }
1440: } else {
1441: @longitems = @items;
1442: }
1443: for (my $i=0; $i<@items; $i++) {
1444: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1445: }
1446: $output .= '</select></td>';
1447: for (my $i=1; $i<$numtitles; $i++) {
1448: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1449: '<select name="'.$$codetitles[$i].
1450: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1451: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1452: '</select>'."\n".
1453: '</td>';
1454: }
1455: $output .= '</tr></table><br />';
1456: }
1457: }
1458: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."'".','."'".'dccourse'."'".','."'".'dcdomain'."'".','."'".'coursedesc'."','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br /></td>'."\n";
1459: $output .= &row_closure();
1460: return $output;
1461: }
1462:
1463: sub status_select_row {
1464: my ($types,$col_width,$tablecolor,$title) = @_;
1465: my $output;
1466: if (defined($title)) {
1467: $output = &row_title($col_width,$tablecolor,$title);
1468: }
1469: $output .= qq| <td valign="top">
1470: <select name="types" multiple>\n|;
1471: foreach my $status_type (sort(keys(%{$types}))) {
1472: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1473: }
1474: $output .= qq| </select>
1475: </td>\n|;
1476: if (defined($title)) {
1477: $output .= &row_closure();
1478: }
1479: return $output;
1480: }
1481:
1482: sub email_default_row {
1483: my ($authtypes,$col_width,$tablecolor,$title,$descrip) = @_;
1484: my $output = &row_title($col_width,$tablecolor,$title);
1485: my @rowcols = ('#eeeeee','#dddddd');
1486: $output .= ' <td>'.$descrip;
1487: $output .= &start_pick_box('');
1488: $output .= ' <tr bgcolor="'.$tablecolor.'">
1489: <td><b>'.&mt('Authentication Method').'</b></td><td align="right"><b>'.&mt('Username -> e-mail conversion').'</b></td>
1490: </tr>'."\n";
1491: my $rownum = 0;
1492: foreach my $auth (sort(keys(%{$authtypes}))) {
1493: my ($userentry,$size);
1494: my $rowiter = $rownum%2;
1495: if ($auth =~ /^krb/) {
1496: $userentry = '';
1497: $size = 25;
1498: } else {
1499: $userentry = 'username@';
1500: $size = 15;
1501: }
1502: $output .= '<tr bgcolor="'.$rowcols[$rowiter].'"><td> '.$$authtypes{$auth}.'</td><td align="right">'.$userentry.'<input type="text" name="'.$auth.'" size="'.$size.'" /></td></tr>';
1503: $rownum ++;
1504: }
1505: $output .= &end_pick_box();
1506: $output .= " <br /></td>\n";
1507: $output .= &row_closure();
1508: return $output;
1509: }
1510:
1511:
1512: sub submit_row {
1513: my ($col_width,$tablecolor,$title,$cmd,$submit_text) = @_;
1514: my $output = &row_title($col_width,$tablecolor,$title);
1515: $output .= qq|
1516: <td width="100%" valign="top" align="right">
1517: <br />
1518: <input type="hidden" name="command" value="$cmd" />
1519: <input type="submit" value="$submit_text"/>
1520: <br /><br />
1521: </td>\n|;
1522: return $output;
1523: }
1524:
1525: ##############################################
1526: ##############################################
1527:
1528: # echo_form_input
1529: #
1530: # Generates html markup to add form elements from the referrer page
1531: # as hidden form elements (values encoded) in the new page.
1532: #
1533: # Intended to support two types of use
1534: # (a) to allow backing up to earlier pages in a multi-page
1535: # form submission process using a breadcrumb trail.
1536: #
1537: # (b) to allow the current page to be reloaded with form elements
1538: # set on previous page to remain unchanged. An example would
1539: # be where the a page containing a dynamically-built table of data is
1540: # is to be redisplayed, with only the sort order of the data changed.
1541: #
1542: # Inputs:
1543: # 1. Reference to array of form elements in the submitted form on
1544: # the referrer page which are to be excluded from the echoed elements.
1545: #
1546: # 2. Reference to array of regular expressions, which if matched in the
1547: # name of the form element n the referrer page will be omitted from echo.
1548: #
1549: # Outputs: A scalar containing the html markup for the echoed form
1550: # elements (all as hidden elements, with values encoded).
1551:
1552:
1553: sub echo_form_input {
1554: my ($excluded,$regexps) = @_;
1555: my $output = '';
1556: foreach my $key (keys(%env)) {
1557: if ($key =~ /^form\.(.+)$/) {
1558: my $name = $1;
1559: my $match = 0;
1560: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1561: if (defined($regexps)) {
1562: if (@{$regexps} > 0) {
1563: foreach my $regexp (@{$regexps}) {
1564: if ($name =~ /\Q$regexp\E/) {
1565: $match = 1;
1566: last;
1567: }
1568: }
1569: }
1570: }
1571: if (!$match) {
1572: if (ref($env{$key})) {
1573: foreach my $value (@{$env{$key}}) {
1574: $value = &HTML::Entities::encode($value,'<>&"');
1575: $output .= '<input type="hidden" name="'.$name.
1576: '" value="'.$value.'" />'."\n";
1577: }
1578: } else {
1579: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1580: $output .= '<input type="hidden" name="'.$name.
1581: '" value="'.$value.'" />'."\n";
1582: }
1583: }
1584: }
1585: }
1586: }
1587: return $output;
1588: }
1589:
1590: ##############################################
1591: ##############################################
1592:
1593: # set_form_elements
1594: #
1595: # Generates javascript to set form elements to values based on
1596: # corresponding values for the same form elements when the page was
1597: # previously submitted.
1598: #
1599: # Last submission values are read from hidden form elements in referring
1600: # page which have the same name, i.e., generated by &echo_form_input().
1601: #
1602: # Intended to be called by onload event.
1603: #
1604: # Input:
1605: # Reference to hash of echoed form elements to be set.
1606: #
1607: # In the hash, keys are the form element names, and the values are the
1608: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1609: # hidden).
1610: #
1611: # Output:
1612: #
1613: # javascript function - set_form_elements() which sets form elements,
1614: # expects an argument: formname - the name of the form according to
1615: # the DOM, e.g., document.compose
1616:
1617: sub set_form_elements {
1618: my ($elements) = @_;
1619: my $output .= 'function setFormElements(courseForm) {
1620: ';
1621: foreach my $key (keys(%env)) {
1622: if ($key =~ /^form\.(.+)$/) {
1623: my $name = $1;
1624: if (exists($$elements{$name})) {
1625: my @values = &Apache::loncommon::get_env_multiple($key);
1626: for (my $i=0; $i<@values; $i++) {
1627: $values[$i] = &HTML::Entities::decode($values[$i],'<>&"');
1628: $values[$i] =~ s/([\r\n\f]+)/\\n/g;
1629: $values[$i] =~ s/"/\\"/g;
1630: }
1631: if ($$elements{$name} eq 'text') {
1632: my $numvalues = @values;
1633: if ($numvalues > 1) {
1634: my $valuestring = join('","',@values);
1635: $output .= qq|
1636: var textvalues = new Array ("$valuestring");
1637: var total = courseForm.$name.length;
1638: if (total > $numvalues) {
1639: total = $numvalues;
1640: }
1641: for (var i=0; i<total; i++) {
1642: courseForm.$name\[i].value = textvalues[i];
1643: }
1644: |;
1645: } else {
1646: $output .= qq|
1647: courseForm.$name.value = "$values[0]";
1648: |;
1649: }
1650: } else {
1651: $output .= qq|
1652: var elementLength = courseForm.$name.length;
1653: if (elementLength==undefined) {
1654: |;
1655: foreach my $value (@values) {
1656: if ($$elements{$name} eq 'selectbox') {
1657: $output .= qq|
1658: if (courseForm.$name.options[0].value == "$value") {
1659: courseForm.$name.options[0].selected = true;
1660: }|;
1661: } elsif (($$elements{$name} eq 'radio') ||
1662: ($$elements{$name} eq 'checkbox')) {
1663: $output .= qq|
1664: if (courseForm.$name.value == "$value") {
1665: courseForm.$name.checked = true;
1666: }|;
1667: }
1668: }
1669: $output .= qq|
1670: }
1671: else {
1672: for (var i=0; i<courseForm.$name.length; i++) {
1673: |;
1674: if ($$elements{$name} eq 'selectbox') {
1675: $output .= qq|
1676: courseForm.$name.options[i].selected = false;|;
1677: } elsif (($$elements{$name} eq 'radio') ||
1678: ($$elements{$name} eq 'checkbox')) {
1679: $output .= qq|
1680: courseForm.$name\[i].checked = false;|;
1681: }
1682: $output .= qq|
1683: }
1684: for (var j=0; j<courseForm.$name.length; j++) {
1685: |;
1686: foreach my $value (@values) {
1687: if ($$elements{$name} eq 'selectbox') {
1688: $output .= qq|
1689: if (courseForm.$name.options[j].value == "$value") {
1690: courseForm.$name.options[j].selected = true;
1691: }|;
1692: } elsif (($$elements{$name} eq 'radio') ||
1693: ($$elements{$name} eq 'checkbox')) {
1694: $output .= qq|
1695: if (courseForm.$name\[j].value == "$value") {
1696: courseForm.$name\[j].checked = true;
1697: }|;
1698: }
1699: }
1700: $output .= qq|
1701: }
1702: }
1703: |;
1704: }
1705: }
1706: }
1707: }
1708: $output .= "
1709: }\n";
1710: return $output;
1711: }
1712:
1713: 1;
1714:
1715: __END__
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