1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.122 2006/03/21 18:39:02 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 $start_page =
807: &Apache::loncommon::start_page($title,undef,
808: {'only_body' => 1,
809: 'bgcolor' => '#88DDFF',
810: 'js_ready' => 1});
811: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
812:
813: #the whole function called through timeout is due to issues
814: #in mozilla Read BUG #2665 if you want to know the whole story
815: &r_print($r,'<script type="text/javascript">'.
816: "var popwin;
817: function openpopwin () {
818: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
819: "popwin.document.writeln(\'".$start_page.
820: "<h4>$heading</h4>".
821: "<form name=popremain>".
822: '<input type="text" size="'.$width.'" name="remaining" value="'.
823: &mt('Starting').'"></form>'.$end_page.
824: "\');".
825: "popwin.document.close();}".
826: "\nwindow.setTimeout(openpopwin,0)</script>");
827: $prog_state{'formname'}='popremain';
828: $prog_state{'inputname'}="remaining";
829: } elsif ($type eq 'inline') {
830: $prog_state{'window'}='window';
831: if (!$formname) {
832: $prog_state{'formname'}=&get_uniq_name();
833: &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
834: } else {
835: $prog_state{'formname'}=$formname;
836: }
837: if (!$inputname) {
838: $prog_state{'inputname'}=&get_uniq_name();
839: &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
840: '" size="'.$width.'" />');
841: } else {
842: $prog_state{'inputname'}=$inputname;
843:
844: }
845: if (!$formname) { &r_print($r,'</form>'); }
846: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
847: }
848:
849: $prog_state{'done'}=0;
850: $prog_state{'firststart'}=&Time::HiRes::time();
851: $prog_state{'laststart'}=&Time::HiRes::time();
852: $prog_state{'max'}=$number_to_do;
853:
854: return %prog_state;
855: }
856:
857: # update progress
858: sub Update_PrgWin {
859: my ($r,$prog_state,$displayString)=@_;
860: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
861: $$prog_state{'formname'}.'.'.
862: $$prog_state{'inputname'}.'.value="'.
863: $displayString.'";</script>');
864: $$prog_state{'laststart'}=&Time::HiRes::time();
865: }
866:
867: # increment progress state
868: sub Increment_PrgWin {
869: my ($r,$prog_state,$extraInfo)=@_;
870: $$prog_state{'done'}++;
871: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
872: $$prog_state{'done'} *
873: ($$prog_state{'max'}-$$prog_state{'done'});
874: $time_est = int($time_est);
875: #
876: my $min = int($time_est/60);
877: my $sec = $time_est % 60;
878: #
879: my $str;
880: if ($min == 0 && $sec > 1) {
881: $str = '[_2] seconds';
882: } elsif ($min == 1 && $sec > 1) {
883: $str = '1 minute [_2] seconds';
884: } elsif ($min == 1 && $sec < 2) {
885: $str = '1 minute';
886: } elsif ($min < 10 && $sec > 1) {
887: $str = '[_1] minutes, [_2] seconds';
888: } elsif ($min >= 10 || $sec < 2) {
889: $str = '[_1] minutes';
890: }
891: $time_est = &mt($str,$min,$sec);
892: #
893: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
894: if ($lasttime > 9) {
895: $lasttime = int($lasttime);
896: } elsif ($lasttime < 0.01) {
897: $lasttime = 0;
898: } else {
899: $lasttime = sprintf("%3.2f",$lasttime);
900: }
901: if ($lasttime == 1) {
902: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
903: } else {
904: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
905: }
906: #
907: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
908: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
909: if (! defined($user_browser) || ! defined($user_os)) {
910: (undef,$user_browser,undef,undef,undef,$user_os) =
911: &Apache::loncommon::decode_user_agent();
912: }
913: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
914: $lasttime = '';
915: }
916: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
917: $$prog_state{'formname'}.'.'.
918: $$prog_state{'inputname'}.'.value="'.
919: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
920: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
921: $$prog_state{'laststart'}=&Time::HiRes::time();
922: }
923:
924: # close Progress Line
925: sub Close_PrgWin {
926: my ($r,$prog_state)=@_;
927: if ($$prog_state{'type'} eq 'popup') {
928: &r_print($r,'<script>popwin.close()</script>'."\n");
929: } elsif ($$prog_state{'type'} eq 'inline') {
930: &Update_PrgWin($r,$prog_state,&mt('Done'));
931: }
932: undef(%$prog_state);
933: }
934:
935: sub r_print {
936: my ($r,$to_print)=@_;
937: if ($r) {
938: $r->print($to_print);
939: $r->rflush();
940: } else {
941: print($to_print);
942: }
943: }
944:
945: # ------------------------------------------------------- Puts directory header
946:
947: sub crumbs {
948: my ($uri,$target,$prefix,$form,$size,$noformat)=@_;
949: if (! defined($size)) {
950: $size = '+2';
951: }
952: if ($target) {
953: $target = ' target="'.
954: &Apache::loncommon::escape_single($target).'"';
955: }
956: my $output='';
957: unless ($noformat) { $output.='<br /><tt><b>'; }
958: $output.='<font size="'.$size.'">'.$prefix.'/';
959: if ($env{'user.adv'}) {
960: my $path=$prefix.'/';
961: foreach my $dir (split('/',$uri)) {
962: if (! $dir) { next; }
963: $path .= $dir;
964: unless ($path eq $uri) { $path.='/'; }
965: my $linkpath = &Apache::loncommon::escape_single($path);
966: if ($form) {
967: $linkpath=
968: qq{javascript:$form.action='$linkpath';$form.submit();};
969: }
970: $output.=qq{<a href="$linkpath" $target>$dir</a>/};
971: }
972: } else {
973: $output.=$uri;
974: }
975: unless ($uri=~/\/$/) { $output=~s/\/$//; }
976: return $output.'</font>'.($noformat?'':'</b></tt><br />');
977: }
978:
979: # --------------------- A function that generates a window for the spellchecker
980:
981: sub spellheader {
982: my $html=&Apache::lonxml::xmlbegin();
983: my $nothing=&javascript_nothing();
984: return (<<ENDCHECK);
985: <script type="text/javascript">
986: //<!-- BEGIN LON-CAPA Internal
987: var checkwin;
988:
989: function spellcheckerwindow() {
990: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
991: checkwin.document.writeln('$html<head></head><body bgcolor="#DDDDDD"><form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="" /></form></body></html>');
992: checkwin.document.close();
993: }
994: // END LON-CAPA Internal -->
995: </script>
996: ENDCHECK
997: }
998:
999: # ---------------------------------- Generate link to spell checker for a field
1000:
1001: sub spelllink {
1002: my ($form,$field)=@_;
1003: my $linktext=&mt('Check Spelling');
1004: return (<<ENDLINK);
1005: <a href="javascript:if (typeof(document.$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>
1006: ENDLINK
1007: }
1008:
1009: # ------------------------------------------------- Output headers for HTMLArea
1010:
1011: sub htmlareaheaders {
1012: if (&htmlareablocked()) { return ''; }
1013: unless (&htmlareabrowser()) { return ''; }
1014: my $lang='en';
1015: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1016: $lang=&mt('htmlarea_lang');
1017: }
1018: return (<<ENDHEADERS);
1019: <script type="text/javascript">
1020: _editor_url='/htmlarea/';
1021: _editor_lang='$lang';
1022: </script>
1023: <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
1024: ENDHEADERS
1025: }
1026:
1027: # ------------------------------------------------- Activate additional buttons
1028:
1029: sub htmlareaaddbuttons {
1030: if (&htmlareablocked()) { return ''; }
1031: unless (&htmlareabrowser()) { return ''; }
1032: return (<<ENDADDBUTTON);
1033: var config=new HTMLArea.Config();
1034: config.registerButton('ed_math','LaTeX Inline',
1035: '/htmlarea/images/ed_math.gif',false,
1036: function(editor,id) {
1037: editor.surroundHTML(' <m>\$','\$</m> ');
1038: }
1039: );
1040: config.registerButton('ed_math_eqn','LaTeX Equation',
1041: '/htmlarea/images/ed_math_eqn.gif',false,
1042: function(editor,id) {
1043: editor.surroundHTML(
1044: ' \\n<center><m>\\\\[','\\\\]</m></center>\\n ');
1045: }
1046: );
1047: config.toolbar.push(['ed_math','ed_math_eqn']);
1048: ENDADDBUTTON
1049: }
1050:
1051: # ----------------------------------------------------------------- Preferences
1052:
1053: sub disablelink {
1054: my @fields=@_;
1055: if (defined($#fields)) {
1056: unless ($#fields>=0) { return ''; }
1057: }
1058: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&Apache::lonnet::escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1059: }
1060:
1061: sub enablelink {
1062: my @fields=@_;
1063: if (defined($#fields)) {
1064: unless ($#fields>=0) { return ''; }
1065: }
1066: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&Apache::lonnet::escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1067: }
1068:
1069: # ----------------------------------------- Script to activate only some fields
1070:
1071: sub htmlareaselectactive {
1072: my @fields=@_;
1073: unless (&htmlareabrowser()) { return ''; }
1074: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1075: my $output='<script type="text/javascript" defer="1">'.
1076: &htmlareaaddbuttons();
1077: foreach(@fields) {
1078: $output.="\nHTMLArea.replace('$_',config);";
1079: }
1080: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1081: &disablelink(@fields);
1082: return $output;
1083: }
1084:
1085: # --------------------------------------------------------------------- Blocked
1086:
1087: sub htmlareablocked {
1088: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1089: return 0;
1090: }
1091:
1092: # ---------------------------------------- Browser capable of running HTMLArea?
1093:
1094: sub htmlareabrowser {
1095: return 1;
1096: }
1097:
1098: ############################################################
1099: ############################################################
1100:
1101: =pod
1102:
1103: =item breadcrumbs
1104:
1105: Compiles the previously registered breadcrumbs into an series of links.
1106: FAQ and BUG links will be placed on the left side of the table if they
1107: are defined for the last registered breadcrumb.
1108: Additionally supports a 'component', which will be displayed on the
1109: right side of the table (without a link).
1110: A link to help for the component will be included if one is specified.
1111:
1112: All inputs can be undef without problems.
1113:
1114: Inputs: $color (the background color of the table returned),
1115: $component (the large text on the right side of the table),
1116: $component_help
1117: $function (role to get colors from)
1118: $domain (domian of role)
1119: $menulink (boolean, controls whether to include a link to /adm/menu)
1120:
1121: Returns a string containing breadcrumbs for the current page.
1122:
1123: =item clear_breadcrumbs
1124:
1125: Clears the previously stored breadcrumbs.
1126:
1127: =item add_breadcrumb
1128:
1129: Pushes a breadcrumb on the stack of crumbs.
1130:
1131: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1132: are required. If present the keys 'faq' and 'bug' will be used to provide
1133: links to the FAQ and bug sites.
1134:
1135: returns: nothing
1136:
1137: =cut
1138:
1139: ############################################################
1140: ############################################################
1141: {
1142: my @Crumbs;
1143:
1144: sub breadcrumbs {
1145: my ($color,$component,$component_help,$function,$domain,$menulink,
1146: $helplink) = @_;
1147: if (! defined($color)) {
1148: if (! defined($function)) {
1149: $function = &Apache::loncommon::get_users_function();
1150: }
1151: $color = &Apache::loncommon::designparm($function.'.tabbg',
1152: $domain);
1153: }
1154: #
1155: my $Str = "\n".
1156: '<table width="100%" border="0" cellpadding="0" cellspacing="0">'.
1157: '<tr><td bgcolor="'.$color.'">'.
1158: '<font size="-1">';
1159: #
1160: # Make the faq and bug data cascade
1161: my $faq = '';
1162: my $bug = '';
1163: my $help='';
1164: # The last breadcrumb does not have a link, so handle it separately.
1165: my $last = pop(@Crumbs);
1166: #
1167: # The first one should be the course or a menu link
1168: if (!defined($menulink)) { $menulink=1; }
1169: if ($menulink) {
1170: my $description = 'Menu';
1171: if (exists($env{'request.course.id'}) &&
1172: $env{'request.course.id'} ne '') {
1173: $description =
1174: $env{'course.'.$env{'request.course.id'}.'.description'};
1175: }
1176: unshift(@Crumbs,{
1177: href =>'/adm/menu',
1178: title =>'Go to main menu',
1179: target =>'_top',
1180: text =>$description,
1181: });
1182: }
1183: my $links .=
1184: join('->',
1185: map {
1186: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1187: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1188: $help = $_->{'help'} if (exists($_->{'help'}));
1189: my $result = '<a href="'.$_->{'href'}.'" ';
1190: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1191: $result .= 'target="'.$_->{'target'}.'" ';
1192: }
1193: $result .='title="'.&mt($_->{'title'}).'">'.
1194: &mt($_->{'text'}).'</a>';
1195: $result;
1196: } @Crumbs
1197: );
1198: $links .= '->' if ($links ne '');
1199: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1200: #
1201: my $icons = '';
1202: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1203: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1204: $help = $last->{'help'} if (exists($last->{'help'}));
1205: $component_help=($component_help?$component_help:$help);
1206: # if ($faq ne '') {
1207: # $icons .= &Apache::loncommon::help_open_faq($faq);
1208: # }
1209: # if ($bug ne '') {
1210: # $icons .= &Apache::loncommon::help_open_bug($bug);
1211: # }
1212: if ($helplink ne 'nohelp') {
1213: $icons .= &Apache::loncommon::help_open_menu($color,$component,$component_help,$function,$faq,$bug);
1214: }
1215: if ($icons ne '') {
1216: $Str .= $icons.' ';
1217: }
1218: #
1219: $Str .= $links.'</font></td>';
1220: #
1221: if (defined($component)) {
1222: $Str .= '<td align="right" bgcolor="'.$color.'">'.
1223: '<font size="+1">'.&mt($component).'</font></td>';
1224: }
1225: $Str .= '</tr></table>'."\n";
1226: #
1227: # Return the @Crumbs stack to what we started with
1228: push(@Crumbs,$last);
1229: shift(@Crumbs);
1230: #
1231: return $Str;
1232: }
1233:
1234: sub clear_breadcrumbs {
1235: undef(@Crumbs);
1236: }
1237:
1238: sub add_breadcrumb {
1239: push (@Crumbs,@_);
1240: }
1241:
1242: } # End of scope for @Crumbs
1243:
1244: ############################################################
1245: ############################################################
1246:
1247: # Nested table routines.
1248: #
1249: # Routines to display form items in a multi-row table with 2 columns.
1250: # Uses nested tables to divide form elements into segments.
1251: # For examples of use see loncom/interface/lonnotify.pm
1252: #
1253: # Can be used in following order: ...
1254: # &start_pick_box()
1255: # row1
1256: # row2
1257: # row3 ... etc.
1258: # &submit_row(0
1259: # &end_pickbox()
1260: #
1261: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1262: # &status_select_row and &email_default_row
1263: #
1264: # Can also be used in following order:
1265: #
1266: # &start_pick_box()
1267: # &row_title()
1268: # &row_closure()
1269: # &row_title()
1270: # &row_closure() ... etc.
1271: # &submit_row()
1272: # &end_pick_box()
1273: #
1274: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1275: # as this routine adds a button for form submission.
1276: # &submit_row() does not require a &row_closure after it.
1277: #
1278: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1279: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1280: #
1281: # &row_title() adds a title in the left column for each segment.
1282: # &row_closure() closes a row with a 1-pixel wide black line.
1283: #
1284: # &role_select_row() provides a select box from which to choose 1 or more roles
1285: # &course_select_row provides ways of picking groups of courses
1286: # radio buttons: all, by category or by picking from a course picker pop-up
1287: # note: by category option is only displayed if a domain has implemented
1288: # selection by year, semester, department, number etc.
1289: #
1290: # &status_select_row() provides a select box from which to choose 1 or more
1291: # access types (current access, prior access, and future access)
1292: #
1293: # &email_default_row() provides text boxes for default e-mail suffixes for
1294: # different authentication types in a domain.
1295: #
1296: # &row_title() and &row_closure() are called internally by the &*_select_row
1297: # routines, but can also be called directly to start and end rows which have
1298: # needs that are not accommodated by the *_select_row() routines.
1299:
1300: sub start_pick_box {
1301: my ($table_width) = @_;
1302: my $output = <<"END";
1303: <table width="$table_width" border="0" cellpadding="0" cellspacing="1" bgcolor="#000000">
1304: <tr>
1305: <td>
1306: <table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#ffffff">
1307: <tr>
1308: <td>
1309: <table width="100%" border="0" cellpadding="0" cellspacing="1" bgcolor="#ffffff">
1310: END
1311: return $output;
1312: }
1313:
1314: sub end_pick_box {
1315: my $output = <<"END";
1316: </table>
1317: </td>
1318: </tr>
1319: </table>
1320: </td>
1321: </tr>
1322: </table>
1323: END
1324: return $output;
1325: }
1326:
1327: sub row_title {
1328: my ($col_width,$tablecolor,$title) = @_;
1329: my $output = <<"ENDONE";
1330: <tr>
1331: <td width="$col_width" bgcolor="$tablecolor">
1332: <table width="$col_width" border="0" cellpadding="8" cellspacing="0">
1333: <tr>
1334: <td align="right"><b>$title:</b>
1335: </td>
1336: </tr>
1337: </table>
1338: </td>
1339: <td width="100%" valign="top">
1340: <table width="100%" border="0" cellpadding="8" cellspacing="0">
1341: <tr>
1342: ENDONE
1343: return $output;
1344: }
1345:
1346: sub row_closure {
1347: my $output = <<"ENDTWO";
1348: </tr>
1349: </table>
1350: </td>
1351: </tr>
1352: <tr>
1353: <td width="100%" colspan="2" bgcolor="#000000">
1354: <img src="/adm/lonMisc/blackdot.gif" /><br />
1355: </td>
1356: </tr>
1357: ENDTWO
1358: return $output;
1359: }
1360:
1361: sub role_select_row {
1362: my ($roles,$col_width,$tablecolor,$title) = @_;
1363: my $output;
1364: if (defined($title)) {
1365: $output = &row_title($col_width,$tablecolor,$title);
1366: }
1367: $output .= qq| <td valign="top">
1368: <select name="roles" multiple >\n|;
1369: foreach my $role (@$roles) {
1370: my $plrole;
1371: if ($role eq 'ow') {
1372: $plrole = &mt('Course Owner');
1373: } else {
1374: $plrole=&Apache::lonnet::plaintext($role);
1375: }
1376: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1377: }
1378: $output .= qq| </select>
1379: </td>\n|;
1380: if (defined($title)) {
1381: $output .= &row_closure();
1382: }
1383: return $output;
1384: }
1385:
1386: sub course_select_row {
1387: my ($col_width,$tablecolor,$title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1388: my $output = &row_title($col_width,$tablecolor,$title);
1389: $output .= " <td>\n";
1390: $output .= qq|
1391: <script type="text/javascript" language="Javascript" >
1392: function coursePick (formname) {
1393: for (var i=0; i<formname.coursepick.length; i++) {
1394: if (formname.coursepick[i].value == 'category') {
1395: courseSet('');
1396: }
1397: if (!formname.coursepick[i].checked) {
1398: if (formname.coursepick[i].value == 'specific') {
1399: formname.coursetotal.value = 0;
1400: formname.courselist = '';
1401: }
1402: }
1403: }
1404: }
1405: function setPick (formname) {
1406: for (var i=0; i<formname.coursepick.length; i++) {
1407: if (formname.coursepick[i].value == 'category') {
1408: formname.coursepick[i].checked = true;
1409: }
1410: formname.coursetotal.value = 0;
1411: formname.courselist = '';
1412: }
1413: }
1414: </script>
1415: |;
1416: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1417: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1418: if ($totcodes > 0) {
1419: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses');
1420: my $numtitles = @$codetitles;
1421: if ($numtitles > 0) {
1422: $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 />';
1423: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1424: '<select name="'.$$codetitles[0].
1425: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1426: ' <option value="-1" />Select'."\n";
1427: my @items = ();
1428: my @longitems = ();
1429: if ($$idlist{$$codetitles[0]} =~ /","/) {
1430: @items = split(/","/,$$idlist{$$codetitles[0]});
1431: } else {
1432: $items[0] = $$idlist{$$codetitles[0]};
1433: }
1434: if (defined($$idlist_titles{$$codetitles[0]})) {
1435: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1436: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1437: } else {
1438: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1439: }
1440: for (my $i=0; $i<@longitems; $i++) {
1441: if ($longitems[$i] eq '') {
1442: $longitems[$i] = $items[$i];
1443: }
1444: }
1445: } else {
1446: @longitems = @items;
1447: }
1448: for (my $i=0; $i<@items; $i++) {
1449: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1450: }
1451: $output .= '</select></td>';
1452: for (my $i=1; $i<$numtitles; $i++) {
1453: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1454: '<select name="'.$$codetitles[$i].
1455: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1456: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1457: '</select>'."\n".
1458: '</td>';
1459: }
1460: $output .= '</tr></table><br />';
1461: }
1462: }
1463: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."'".','."'".'dccourse'."'".','."'".'dcdomain'."'".','."'".'coursedesc'."','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br /></td>'."\n";
1464: $output .= &row_closure();
1465: return $output;
1466: }
1467:
1468: sub status_select_row {
1469: my ($types,$col_width,$tablecolor,$title) = @_;
1470: my $output;
1471: if (defined($title)) {
1472: $output = &row_title($col_width,$tablecolor,$title);
1473: }
1474: $output .= qq| <td valign="top">
1475: <select name="types" multiple>\n|;
1476: foreach my $status_type (sort(keys(%{$types}))) {
1477: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1478: }
1479: $output .= qq| </select>
1480: </td>\n|;
1481: if (defined($title)) {
1482: $output .= &row_closure();
1483: }
1484: return $output;
1485: }
1486:
1487: sub email_default_row {
1488: my ($authtypes,$col_width,$tablecolor,$title,$descrip) = @_;
1489: my $output = &row_title($col_width,$tablecolor,$title);
1490: my @rowcols = ('#eeeeee','#dddddd');
1491: $output .= ' <td>'.$descrip;
1492: $output .= &start_pick_box('');
1493: $output .= ' <tr bgcolor="'.$tablecolor.'">
1494: <td><b>'.&mt('Authentication Method').'</b></td><td align="right"><b>'.&mt('Username -> e-mail conversion').'</b></td>
1495: </tr>'."\n";
1496: my $rownum = 0;
1497: foreach my $auth (sort(keys(%{$authtypes}))) {
1498: my ($userentry,$size);
1499: my $rowiter = $rownum%2;
1500: if ($auth =~ /^krb/) {
1501: $userentry = '';
1502: $size = 25;
1503: } else {
1504: $userentry = 'username@';
1505: $size = 15;
1506: }
1507: $output .= '<tr bgcolor="'.$rowcols[$rowiter].'"><td> '.$$authtypes{$auth}.'</td><td align="right">'.$userentry.'<input type="text" name="'.$auth.'" size="'.$size.'" /></td></tr>';
1508: $rownum ++;
1509: }
1510: $output .= &end_pick_box();
1511: $output .= " <br /></td>\n";
1512: $output .= &row_closure();
1513: return $output;
1514: }
1515:
1516:
1517: sub submit_row {
1518: my ($col_width,$tablecolor,$title,$cmd,$submit_text) = @_;
1519: my $output = &row_title($col_width,$tablecolor,$title);
1520: $output .= qq|
1521: <td width="100%" valign="top" align="right">
1522: <br />
1523: <input type="hidden" name="command" value="$cmd" />
1524: <input type="submit" value="$submit_text"/>
1525: <br /><br />
1526: </td>\n|;
1527: return $output;
1528: }
1529:
1530: ##############################################
1531: ##############################################
1532:
1533: # echo_form_input
1534: #
1535: # Generates html markup to add form elements from the referrer page
1536: # as hidden form elements (values encoded) in the new page.
1537: #
1538: # Intended to support two types of use
1539: # (a) to allow backing up to earlier pages in a multi-page
1540: # form submission process using a breadcrumb trail.
1541: #
1542: # (b) to allow the current page to be reloaded with form elements
1543: # set on previous page to remain unchanged. An example would
1544: # be where the a page containing a dynamically-built table of data is
1545: # is to be redisplayed, with only the sort order of the data changed.
1546: #
1547: # Inputs:
1548: # 1. Reference to array of form elements in the submitted form on
1549: # the referrer page which are to be excluded from the echoed elements.
1550: #
1551: # 2. Reference to array of regular expressions, which if matched in the
1552: # name of the form element n the referrer page will be omitted from echo.
1553: #
1554: # Outputs: A scalar containing the html markup for the echoed form
1555: # elements (all as hidden elements, with values encoded).
1556:
1557:
1558: sub echo_form_input {
1559: my ($excluded,$regexps) = @_;
1560: my $output = '';
1561: foreach my $key (keys(%env)) {
1562: if ($key =~ /^form\.(.+)$/) {
1563: my $name = $1;
1564: my $match = 0;
1565: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1566: if (defined($regexps)) {
1567: if (@{$regexps} > 0) {
1568: foreach my $regexp (@{$regexps}) {
1569: if ($name =~ /\Q$regexp\E/) {
1570: $match = 1;
1571: last;
1572: }
1573: }
1574: }
1575: }
1576: if (!$match) {
1577: if (ref($env{$key})) {
1578: foreach my $value (@{$env{$key}}) {
1579: $value = &HTML::Entities::encode($value,'<>&"');
1580: $output .= '<input type="hidden" name="'.$name.
1581: '" value="'.$value.'" />'."\n";
1582: }
1583: } else {
1584: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1585: $output .= '<input type="hidden" name="'.$name.
1586: '" value="'.$value.'" />'."\n";
1587: }
1588: }
1589: }
1590: }
1591: }
1592: return $output;
1593: }
1594:
1595: ##############################################
1596: ##############################################
1597:
1598: # set_form_elements
1599: #
1600: # Generates javascript to set form elements to values based on
1601: # corresponding values for the same form elements when the page was
1602: # previously submitted.
1603: #
1604: # Last submission values are read from hidden form elements in referring
1605: # page which have the same name, i.e., generated by &echo_form_input().
1606: #
1607: # Intended to be called by onload event.
1608: #
1609: # Inputs:
1610: # (a) Reference to hash of echoed form elements to be set.
1611: #
1612: # In the hash, keys are the form element names, and the values are the
1613: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1614: # hidden).
1615: #
1616: # (b) Optional reference to hash of stored elements to be set.
1617: #
1618: # If the page being displayed is a page which permits modification of
1619: # previously stored data, e.g., the first page in a multi-page submission,
1620: # then if stored is supplied, form elements will be set to the last stored
1621: # values. If user supplied values are also available for the same elements
1622: # these will replace the stored values.
1623: #
1624: # Output:
1625: #
1626: # javascript function - set_form_elements() which sets form elements,
1627: # expects an argument: formname - the name of the form according to
1628: # the DOM, e.g., document.compose
1629:
1630: sub set_form_elements {
1631: my ($elements,$stored) = @_;
1632: my %values;
1633: my $output .= 'function setFormElements(courseForm) {
1634: ';
1635: if (defined($stored)) {
1636: foreach my $name (keys(%{$stored})) {
1637: if (exists($$elements{$name})) {
1638: if (ref($$stored{$name}) eq 'ARRAY') {
1639: $values{$name} = $$stored{$name};
1640: } else {
1641: @{$values{$name}} = ($$stored{$name});
1642: }
1643: }
1644: }
1645: }
1646:
1647: foreach my $key (keys(%env)) {
1648: if ($key =~ /^form\.(.+)$/) {
1649: my $name = $1;
1650: if (exists($$elements{$name})) {
1651: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1652: }
1653: }
1654: }
1655:
1656: foreach my $name (keys(%values)) {
1657: for (my $i=0; $i<@{$values{$name}}; $i++) {
1658: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1659: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1660: $values{$name}[$i] =~ s/"/\\"/g;
1661: }
1662: if ($$elements{$name} eq 'text') {
1663: my $numvalues = @{$values{$name}};
1664: if ($numvalues > 1) {
1665: my $valuestring = join('","',@{$values{$name}});
1666: $output .= qq|
1667: var textvalues = new Array ("$valuestring");
1668: var total = courseForm.$name.length;
1669: if (total > $numvalues) {
1670: total = $numvalues;
1671: }
1672: for (var i=0; i<total; i++) {
1673: courseForm.$name\[i].value = textvalues[i];
1674: }
1675: |;
1676: } else {
1677: $output .= qq|
1678: courseForm.$name.value = "$values{$name}[0]";
1679: |;
1680: }
1681: } else {
1682: $output .= qq|
1683: var elementLength = courseForm.$name.length;
1684: if (elementLength==undefined) {
1685: |;
1686: foreach my $value (@{$values{$name}}) {
1687: if ($$elements{$name} eq 'selectbox') {
1688: $output .= qq|
1689: if (courseForm.$name.options[0].value == "$value") {
1690: courseForm.$name.options[0].selected = true;
1691: }|;
1692: } elsif (($$elements{$name} eq 'radio') ||
1693: ($$elements{$name} eq 'checkbox')) {
1694: $output .= qq|
1695: if (courseForm.$name.value == "$value") {
1696: courseForm.$name.checked = true;
1697: }|;
1698: }
1699: }
1700: $output .= qq|
1701: }
1702: else {
1703: for (var i=0; i<courseForm.$name.length; i++) {
1704: |;
1705: if ($$elements{$name} eq 'selectbox') {
1706: $output .= qq|
1707: courseForm.$name.options[i].selected = false;|;
1708: } elsif (($$elements{$name} eq 'radio') ||
1709: ($$elements{$name} eq 'checkbox')) {
1710: $output .= qq|
1711: courseForm.$name\[i].checked = false;|;
1712: }
1713: $output .= qq|
1714: }
1715: for (var j=0; j<courseForm.$name.length; j++) {
1716: |;
1717: foreach my $value (@{$values{$name}}) {
1718: if ($$elements{$name} eq 'selectbox') {
1719: $output .= qq|
1720: if (courseForm.$name.options[j].value == "$value") {
1721: courseForm.$name.options[j].selected = true;
1722: }|;
1723: } elsif (($$elements{$name} eq 'radio') ||
1724: ($$elements{$name} eq 'checkbox')) {
1725: $output .= qq|
1726: if (courseForm.$name\[j].value == "$value") {
1727: courseForm.$name\[j].checked = true;
1728: }|;
1729: }
1730: }
1731: $output .= qq|
1732: }
1733: }
1734: |;
1735: }
1736: }
1737: $output .= "
1738: }\n";
1739: return $output;
1740: }
1741:
1742: 1;
1743:
1744: __END__
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