Annotation of loncom/interface/lonhtmlcommon.pm, revision 1.182.2.2
1.2 www 1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
1.182.2.2! raeburn 4: # $Id: lonhtmlcommon.pm,v 1.182.2.1 2009/01/12 01:53:38 raeburn Exp $
1.2 www 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: #
1.10 matthew 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: ######################################################################
1.2 www 55:
1.1 stredwic 56: package Apache::lonhtmlcommon;
57:
1.104 albertel 58: use strict;
1.10 matthew 59: use Time::Local;
1.47 sakharuk 60: use Time::HiRes;
1.30 www 61: use Apache::lonlocal;
1.104 albertel 62: use Apache::lonnet;
1.130 www 63: use LONCAPA;
1.1 stredwic 64:
1.176 foxr 65:
66: ##############################################
67: ##############################################
68:
69: =pod
70:
1.177 raeburn 71: =item dragmath_button
1.176 foxr 72:
1.177 raeburn 73: Creates a button that launches a dragmath popup-window, in which an
74: expression can be edited and pasted as LaTeX into a specified textarea.
75:
76: textarea - Name of the textarea to edit.
77: helpicon - If true, show a help icon to the right of the button.
1.176 foxr 78:
79: =cut
80:
1.177 raeburn 81: sub dragmath_button {
82: my ($textarea,$helpicon) = @_;
83: my $help_text;
84: if ($helpicon) {
85: $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor');
86: }
1.178 bisitz 87: my $buttontext=&mt('Edit Math');
1.177 raeburn 88: return <<ENDDRAGMATH;
1.178 bisitz 89: <input type="button" value="$buttontext", onclick="javascript:mathedit('$textarea',document)" />$help_text
1.177 raeburn 90: ENDDRAGMATH
91: }
92:
1.176 foxr 93: ##############################################
94:
1.177 raeburn 95: =pod
96:
97: =item dragmath_js
98:
99: Javascript used to open pop-up window containing dragmath applet which
100: can be used to paste LaTeX into a textarea.
101:
102: =cut
1.176 foxr 103:
1.177 raeburn 104: sub dragmath_js {
1.182 foxr 105: my ($popup) = @_;
1.177 raeburn 106: return <<ENDDRAGMATHJS;
107: <script type="text/javascript">
1.176 foxr 108: function mathedit(textarea, doc) {
109: targetEntry = textarea;
1.177 raeburn 110: targetDoc = doc;
1.182 foxr 111: newwin = window.open("/adm/dragmath/applet/$popup.html","","width=565,height=500,resizable");
1.176 foxr 112: }
113: </script>
1.177 raeburn 114:
115: ENDDRAGMATHJS
1.176 foxr 116: }
117:
1.182 foxr 118:
1.40 www 119: ##############################################
120: ##############################################
121:
122: =pod
123:
124: =item authorbombs
125:
126: =cut
127:
128: ##############################################
129: ##############################################
130:
131: sub authorbombs {
132: my $url=shift;
133: $url=&Apache::lonnet::declutter($url);
1.155 albertel 134: my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
1.40 www 135: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
136: foreach (keys %bombs) {
137: if ($_=~/^$udom\/$uname\//) {
138: return '<a href="/adm/bombs/'.$url.
1.103 albertel 139: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" border="0" /></a>'.
1.40 www 140: &Apache::loncommon::help_open_topic('About_Bombs');
141: }
142: }
143: return '';
144: }
1.26 matthew 145:
146: ##############################################
147: ##############################################
148:
1.41 www 149: sub recent_filename {
150: my $area=shift;
1.130 www 151: return 'nohist_recent_'.&escape($area);
1.41 www 152: }
153:
154: sub store_recent {
1.136 albertel 155: my ($area,$name,$value,$freeze)=@_;
1.41 www 156: my $file=&recent_filename($area);
157: my %recent=&Apache::lonnet::dump($file);
1.111 www 158: if (scalar(keys(%recent))>20) {
1.41 www 159: # remove oldest value
1.136 albertel 160: my $oldest=time();
1.41 www 161: my $delkey='';
1.136 albertel 162: foreach my $item (keys(%recent)) {
163: my $thistime=(split(/\&/,$recent{$item}))[0];
164: if (($thistime ne "always_include") && ($thistime<$oldest)) {
1.41 www 165: $oldest=$thistime;
1.136 albertel 166: $delkey=$item;
1.41 www 167: }
168: }
169: &Apache::lonnet::del($file,[$delkey]);
170: }
171: # store new value
1.136 albertel 172: my $timestamp;
173: if ($freeze) {
174: $timestamp = "always_include";
175: } else {
176: $timestamp = time();
177: }
1.41 www 178: &Apache::lonnet::put($file,{ $name =>
1.136 albertel 179: $timestamp.'&'.&escape($value) });
1.41 www 180: }
181:
1.89 banghart 182: sub remove_recent {
183: my ($area,$names)=@_;
184: my $file=&recent_filename($area);
185: return &Apache::lonnet::del($file,$names);
186: }
187:
1.41 www 188: sub select_recent {
189: my ($area,$fieldname,$event)=@_;
190: my %recent=&Apache::lonnet::dump(&recent_filename($area));
191: my $return="\n<select name='$fieldname'".
1.96 albertel 192: ($event?" onchange='$event'":'').
1.41 www 193: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
1.136 albertel 194: foreach my $value (sort(keys(%recent))) {
195: unless ($value =~/^error\:/) {
196: my $escaped = &Apache::loncommon::escape_url($value);
1.160 albertel 197: &Apache::loncommon::inhibit_menu_check(\$escaped);
1.94 foxr 198: $return.="\n<option value='$escaped'>".
1.136 albertel 199: &unescape((split(/\&/,$recent{$value}))[1]).
1.41 www 200: '</option>';
201: }
202: }
203: $return.="\n</select>\n";
204: return $return;
205: }
206:
1.97 albertel 207: sub get_recent {
208: my ($area, $n) = @_;
209: my %recent=&Apache::lonnet::dump(&recent_filename($area));
210:
211: # Create hash with key as time and recent as value
1.136 albertel 212: # Begin filling return_hash with any 'always_include' option
1.97 albertel 213: my %time_hash = ();
1.136 albertel 214: my %return_hash = ();
215: foreach my $item (keys %recent) {
216: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
217: if ($thistime eq 'always_include') {
218: $return_hash{$item} = &unescape($thisvalue);
219: $n--;
220: } else {
221: $time_hash{$thistime} = $item;
1.133 albertel 222: }
1.97 albertel 223: }
224:
225: # Sort by decreasing time and return key value pairs
226: my $idx = 1;
1.136 albertel 227: foreach my $item (reverse(sort(keys(%time_hash)))) {
228: $return_hash{$time_hash{$item}} =
229: &unescape((split(/\&/,$recent{$time_hash{$item}}))[1]);
1.97 albertel 230: if ($n && ($idx++ >= $n)) {last;}
231: }
232:
233: return %return_hash;
234: }
235:
1.136 albertel 236: sub get_recent_frozen {
237: my ($area) = @_;
238: my %recent=&Apache::lonnet::dump(&recent_filename($area));
239:
240: # Create hash with all 'frozen' items
241: my %return_hash = ();
242: foreach my $item (keys(%recent)) {
243: my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
244: if ($thistime eq 'always_include') {
245: $return_hash{$item} = &unescape($thisvalue);
246: }
247: }
248: return %return_hash;
249: }
250:
1.97 albertel 251:
1.41 www 252:
1.26 matthew 253: =pod
254:
255: =item textbox
256:
257: =cut
258:
259: ##############################################
260: ##############################################
261: sub textbox {
262: my ($name,$value,$size,$special) = @_;
263: $size = 40 if (! defined($size));
1.128 albertel 264: $value = &HTML::Entities::encode($value,'<>&"');
1.26 matthew 265: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
266: 'value="'.$value.'" '.$special.' />';
267: return $Str;
268: }
269:
270: ##############################################
271: ##############################################
272:
273: =pod
274:
275: =item checkbox
276:
277: =cut
278:
279: ##############################################
280: ##############################################
281: sub checkbox {
1.68 matthew 282: my ($name,$checked,$value) = @_;
283: my $Str = '<input type="checkbox" name="'.$name.'" ';
284: if (defined($value)) {
285: $Str .= 'value="'.$value.'"';
286: }
287: if ($checked) {
288: $Str .= ' checked="1"';
289: }
290: $Str .= ' />';
1.26 matthew 291: return $Str;
292: }
293:
1.120 albertel 294:
295: =pod
296:
297: =item radiobutton
298:
299: =cut
300:
301: ##############################################
302: ##############################################
303: sub radio {
304: my ($name,$checked,$value) = @_;
305: my $Str = '<input type="radio" name="'.$name.'" ';
306: if (defined($value)) {
307: $Str .= 'value="'.$value.'"';
308: }
309: if ($checked eq $value) {
310: $Str .= ' checked="1"';
311: }
312: $Str .= ' />';
313: return $Str;
314: }
315:
1.10 matthew 316: ##############################################
317: ##############################################
318:
319: =pod
320:
321: =item &date_setter
322:
1.22 matthew 323: &date_setter returns html and javascript for a compact date-setting form.
324: To retrieve values from it, use &get_date_from_form().
325:
1.10 matthew 326: Inputs
327:
328: =over 4
329:
330: =item $dname
331:
332: The name to prepend to the form elements.
333: The form elements defined will be dname_year, dname_month, dname_day,
334: dname_hour, dname_min, and dname_sec.
335:
336: =item $currentvalue
337:
338: The current setting for this time parameter. A unix format time
339: (time in seconds since the beginning of Jan 1st, 1970, GMT.
340: An undefined value is taken to indicate the value is the current time.
341: Also, to be explicit, a value of 'now' also indicates the current time.
342:
1.26 matthew 343: =item $special
344:
345: Additional html/javascript to be associated with each element in
346: the date_setter. See lonparmset for example usage.
347:
1.59 matthew 348: =item $includeempty
349:
350: =item $state
351:
352: Specifies the initial state of the form elements. Either 'disabled' or empty.
353: Defaults to empty, which indiciates the form elements are not disabled.
354:
1.22 matthew 355: =back
356:
357: Bugs
358:
359: The method used to restrict user input will fail in the year 2400.
360:
1.10 matthew 361: =cut
362:
363: ##############################################
364: ##############################################
365: sub date_setter {
1.67 matthew 366: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
1.134 raeburn 367: $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink) = @_;
1.175 raeburn 368: my $now = time;
1.107 www 369: my $wasdefined=1;
1.59 matthew 370: if (! defined($state) || $state ne 'disabled') {
371: $state = '';
372: }
1.67 matthew 373: if (! defined($no_hh_mm_ss)) {
374: $no_hh_mm_ss = 0;
375: }
1.110 www 376: if ($currentvalue eq 'now') {
1.175 raeburn 377: $currentvalue = $now;
1.110 www 378: }
379: if ((!defined($currentvalue)) || ($currentvalue eq '')) {
380: $wasdefined=0;
381: if ($includeempty) {
382: $currentvalue = 0;
383: } else {
1.175 raeburn 384: $currentvalue = $now;
1.39 www 385: }
1.10 matthew 386: }
387: # other potentially useful values: wkday,yrday,is_daylight_savings
1.175 raeburn 388: my $tzname;
1.65 albertel 389: my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
1.39 www 390: if ($currentvalue) {
1.175 raeburn 391: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue);
1.39 www 392: }
1.107 www 393: unless ($wasdefined) {
1.175 raeburn 394: ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($now);
1.110 www 395: if (($defhour) || ($defmin) || ($defsec)) {
396: $sec=($defsec?$defsec:0);
397: $min=($defmin?$defmin:0);
398: $hour=($defhour?$defhour:0);
399: } elsif (!$includeempty) {
400: $sec=0;
401: $min=0;
402: $hour=0;
403: }
1.107 www 404: }
1.10 matthew 405: my $result = "\n<!-- $dname date setting form -->\n";
406: $result .= <<ENDJS;
1.135 albertel 407: <script type="text/javascript">
1.10 matthew 408: function $dname\_checkday() {
409: var day = document.$formname.$dname\_day.value;
410: var month = document.$formname.$dname\_month.value;
411: var year = document.$formname.$dname\_year.value;
412: var valid = true;
413: if (day < 1) {
414: document.$formname.$dname\_day.value = 1;
415: }
416: if (day > 31) {
417: document.$formname.$dname\_day.value = 31;
418: }
419: if ((month == 1) || (month == 3) || (month == 5) ||
420: (month == 7) || (month == 8) || (month == 10) ||
421: (month == 12)) {
422: if (day > 31) {
423: document.$formname.$dname\_day.value = 31;
424: day = 31;
425: }
426: } else if (month == 2 ) {
427: if ((year % 4 == 0) && (year % 100 != 0)) {
428: if (day > 29) {
429: document.$formname.$dname\_day.value = 29;
430: }
431: } else if (day > 29) {
432: document.$formname.$dname\_day.value = 28;
433: }
434: } else if (day > 30) {
435: document.$formname.$dname\_day.value = 30;
436: }
437: }
1.95 matthew 438:
1.59 matthew 439: function $dname\_disable() {
440: document.$formname.$dname\_month.disabled=true;
441: document.$formname.$dname\_day.disabled=true;
442: document.$formname.$dname\_year.disabled=true;
443: document.$formname.$dname\_hour.disabled=true;
444: document.$formname.$dname\_minute.disabled=true;
445: document.$formname.$dname\_second.disabled=true;
446: }
447:
448: function $dname\_enable() {
449: document.$formname.$dname\_month.disabled=false;
450: document.$formname.$dname\_day.disabled=false;
451: document.$formname.$dname\_year.disabled=false;
452: document.$formname.$dname\_hour.disabled=false;
453: document.$formname.$dname\_minute.disabled=false;
454: document.$formname.$dname\_second.disabled=false;
455: }
456:
1.29 www 457: function $dname\_opencalendar() {
1.59 matthew 458: if (! document.$formname.$dname\_month.disabled) {
459: var calwin=window.open(
1.29 www 460: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
461: document.$formname.$dname\_month.value+"&year="+
462: document.$formname.$dname\_year.value,
463: "LONCAPAcal",
464: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
1.59 matthew 465: }
1.29 www 466:
467: }
1.10 matthew 468: </script>
469: ENDJS
1.135 albertel 470: $result .= ' <span style="white-space: nowrap;">';
1.96 albertel 471: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
1.67 matthew 472: # Month
1.10 matthew 473: my @Months = qw/January February March April May June
474: July August September October November December/;
475: # Pad @Months with a bogus value to make indexing easier
476: unshift(@Months,'If you can read this an error occurred');
1.95 matthew 477: if ($includeempty) { $monthselector.="<option value=''></option>"; }
1.10 matthew 478: for(my $m = 1;$m <=$#Months;$m++) {
1.95 matthew 479: $monthselector .= qq{ <option value="$m" };
480: $monthselector .= "selected " if ($m-1 eq $month);
481: $monthselector .= '> '.&mt($Months[$m]).' </option>';
1.10 matthew 482: }
1.95 matthew 483: $monthselector.= ' </select>';
1.67 matthew 484: # Day
1.96 albertel 485: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
1.67 matthew 486: # Year
1.96 albertel 487: my $yearselector = qq{<input type="year" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
1.95 matthew 488: #
489: my $hourselector = qq{<select name="$dname\_hour" $special $state >};
490: if ($includeempty) {
491: $hourselector.=qq{<option value=''></option>};
492: }
493: for (my $h = 0;$h<24;$h++) {
494: $hourselector .= qq{<option value="$h" };
495: $hourselector .= "selected " if (defined($hour) && $hour == $h);
496: $hourselector .= ">";
497: my $timest='';
498: if ($h == 0) {
499: $timest .= "12 am";
500: } elsif($h == 12) {
501: $timest .= "12 noon";
502: } elsif($h < 12) {
503: $timest .= "$h am";
504: } else {
505: $timest .= $h-12 ." pm";
506: }
507: $timest=&mt($timest);
508: $hourselector .= $timest." </option>\n";
509: }
510: $hourselector .= " </select>\n";
511: my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
512: my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
1.134 raeburn 513: my $cal_link;
514: if (!$nolink) {
515: $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
516: }
1.95 matthew 517: #
1.175 raeburn 518: my $tzone = ' '.$tzname.' ';
1.95 matthew 519: if ($no_hh_mm_ss) {
1.134 raeburn 520: $result .= &mt('[_1] [_2] [_3] ',
1.174 raeburn 521: $monthselector,$dayselector,$yearselector).
522: $tzone;
1.134 raeburn 523: if (!$nolink) {
1.141 albertel 524: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
1.134 raeburn 525: }
1.95 matthew 526: } else {
1.134 raeburn 527: $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
528: $monthselector,$dayselector,$yearselector,
1.174 raeburn 529: $hourselector,$minuteselector,$secondselector).
530: $tzone;
1.134 raeburn 531: if (!$nolink) {
1.141 albertel 532: $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
1.134 raeburn 533: }
1.67 matthew 534: }
1.135 albertel 535: $result .= "</span>\n<!-- end $dname date setting form -->\n";
1.10 matthew 536: return $result;
537: }
538:
1.175 raeburn 539: sub get_timedates {
540: my ($epoch) = @_;
541: my $dt = DateTime->from_epoch(epoch => $epoch)
542: ->set_time_zone(&Apache::lonlocal::gettimezone());
543: my $tzname = $dt->time_zone_short_name();
544: my $sec = $dt->second;
545: my $min = $dt->minute;
546: my $hour = $dt->hour;
547: my $mday = $dt->day;
548: my $month = $dt->month;
549: if ($month) {
550: $month --;
551: }
552: my $year = $dt->year;
553: return ($tzname,$sec,$min,$hour,$mday,$month,$year);
554: }
1.166 banghart 555:
556: sub build_url {
557: my ($base, $fields)=@_;
558: my $url;
559: $url = $base.'?';
1.168 albertel 560: foreach my $key (keys(%$fields)) {
561: $url.=&escape($key).'='.&escape($$fields{$key}).'&';
1.166 banghart 562: }
563: $url =~ s/&$//;
564: return $url;
565: }
566:
567:
1.10 matthew 568: ##############################################
569: ##############################################
570:
1.22 matthew 571: =pod
572:
1.10 matthew 573: =item &get_date_from_form
1.22 matthew 574:
575: get_date_from_form retrieves the date specified in an &date_setter form.
1.10 matthew 576:
577: Inputs:
578:
579: =over 4
580:
581: =item $dname
582:
583: The name passed to &datesetter, which prefixes the form elements.
584:
585: =item $defaulttime
586:
587: The unix time to use as the default in case of poor inputs.
588:
589: =back
590:
591: Returns: Unix time represented in the form.
592:
593: =cut
594:
595: ##############################################
596: ##############################################
597: sub get_date_from_form {
598: my ($dname) = @_;
599: my ($sec,$min,$hour,$day,$month,$year);
600: #
1.104 albertel 601: if (defined($env{'form.'.$dname.'_second'})) {
602: my $tmpsec = $env{'form.'.$dname.'_second'};
1.10 matthew 603: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
604: $sec = $tmpsec;
605: }
1.64 albertel 606: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
1.67 matthew 607: } else {
608: $sec = 0;
1.10 matthew 609: }
1.104 albertel 610: if (defined($env{'form.'.$dname.'_minute'})) {
611: my $tmpmin = $env{'form.'.$dname.'_minute'};
1.10 matthew 612: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
613: $min = $tmpmin;
614: }
1.64 albertel 615: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
1.67 matthew 616: } else {
617: $min = 0;
1.10 matthew 618: }
1.104 albertel 619: if (defined($env{'form.'.$dname.'_hour'})) {
620: my $tmphour = $env{'form.'.$dname.'_hour'};
1.33 matthew 621: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
1.10 matthew 622: $hour = $tmphour;
623: }
1.67 matthew 624: } else {
625: $hour = 0;
1.10 matthew 626: }
1.104 albertel 627: if (defined($env{'form.'.$dname.'_day'})) {
628: my $tmpday = $env{'form.'.$dname.'_day'};
1.10 matthew 629: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
630: $day = $tmpday;
631: }
632: }
1.104 albertel 633: if (defined($env{'form.'.$dname.'_month'})) {
634: my $tmpmonth = $env{'form.'.$dname.'_month'};
1.10 matthew 635: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
1.175 raeburn 636: $month = $tmpmonth;
1.10 matthew 637: }
638: }
1.104 albertel 639: if (defined($env{'form.'.$dname.'_year'})) {
640: my $tmpyear = $env{'form.'.$dname.'_year'};
1.175 raeburn 641: if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
642: $year = $tmpyear;
1.10 matthew 643: }
644: }
1.175 raeburn 645: if (($year<1970) || ($year>2037)) { return undef; }
1.33 matthew 646: if (defined($sec) && defined($min) && defined($hour) &&
1.175 raeburn 647: defined($day) && defined($month) && defined($year)) {
648: my $timezone = &Apache::lonlocal::gettimezone();
649: my $dt = DateTime->new( year => $year,
650: month => $month,
651: day => $day,
652: hour => $hour,
653: minute => $min,
654: second => $sec,
655: time_zone => $timezone,
656: );
657: my $epoch_time = $dt->epoch;
658: if ($epoch_time ne '') {
659: return $epoch_time;
660: } else {
661: return undef;
662: }
1.10 matthew 663: } else {
664: return undef;
665: }
1.20 matthew 666: }
667:
668: ##############################################
669: ##############################################
670:
671: =pod
672:
673: =item &pjump_javascript_definition()
674:
675: Returns javascript defining the 'pjump' function, which opens up a
676: parameter setting wizard.
677:
678: =cut
679:
680: ##############################################
681: ##############################################
682: sub pjump_javascript_definition {
683: my $Str = <<END;
1.109 www 684: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
1.20 matthew 685: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
686: +"&value="+escape(value)+"&marker="+escape(marker)
687: +"&return="+escape(ret)
1.109 www 688: +"&call="+escape(call)+"&name="+escape(dis)
689: +"&defhour="+escape(hour)+"&defmin="+escape(min)
690: +"&defsec="+escape(sec),"LONCAPAparms",
1.20 matthew 691: "height=350,width=350,scrollbars=no,menubar=no");
692: }
693: END
694: return $Str;
1.10 matthew 695: }
696:
697: ##############################################
698: ##############################################
1.17 matthew 699:
700: =pod
701:
702: =item &javascript_nothing()
703:
704: Return an appropriate null for the users browser. This is used
705: as the first arguement for window.open calls when you want a blank
706: window that you can then write to.
707:
708: =cut
709:
710: ##############################################
711: ##############################################
712: sub javascript_nothing {
713: # mozilla and other browsers work with "''", but IE on mac does not.
714: my $nothing = "''";
715: my $user_browser;
716: my $user_os;
1.104 albertel 717: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
718: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
1.17 matthew 719: if (! defined($user_browser) || ! defined($user_os)) {
720: (undef,$user_browser,undef,undef,undef,$user_os) =
721: &Apache::loncommon::decode_user_agent();
722: }
723: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
724: $nothing = "'javascript:void(0);'";
725: }
726: return $nothing;
727: }
728:
1.90 www 729: ##############################################
730: ##############################################
731: sub javascript_docopen {
1.171 albertel 732: my ($mimetype) = @_;
733: $mimetype ||= 'text/html';
1.90 www 734: # safari does not understand document.open() and loads "text/html"
735: my $nothing = "''";
736: my $user_browser;
737: my $user_os;
1.104 albertel 738: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
739: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
1.90 www 740: if (! defined($user_browser) || ! defined($user_os)) {
741: (undef,$user_browser,undef,undef,undef,$user_os) =
742: &Apache::loncommon::decode_user_agent();
743: }
744: if ($user_browser eq 'safari' && $user_os =~ 'mac') {
745: $nothing = "document.clear()";
746: } else {
1.171 albertel 747: $nothing = "document.open('$mimetype','replace')";
1.90 www 748: }
749: return $nothing;
750: }
751:
1.21 matthew 752:
1.17 matthew 753: ##############################################
754: ##############################################
755:
1.21 matthew 756: =pod
1.17 matthew 757:
1.21 matthew 758: =item &StatusOptions()
1.10 matthew 759:
1.21 matthew 760: Returns html for a selection box which allows the user to choose the
761: enrollment status of students. The selection box name is 'Status'.
1.6 stredwic 762:
1.21 matthew 763: Inputs:
1.6 stredwic 764:
1.21 matthew 765: $status: the currently selected status. If undefined the value of
1.104 albertel 766: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
1.21 matthew 767: is used.
1.6 stredwic 768:
1.21 matthew 769: $formname: The name of the form. If defined the onchange attribute of
770: the selection box is set to document.$formname.submit().
1.6 stredwic 771:
1.21 matthew 772: $size: the size (number of lines) of the selection box.
1.6 stredwic 773:
1.27 matthew 774: $onchange: javascript to use when the value is changed. Enclosed in
775: double quotes, ""s, not single quotes.
776:
1.21 matthew 777: Returns: a perl string as described.
1.1 stredwic 778:
1.21 matthew 779: =cut
1.9 stredwic 780:
1.21 matthew 781: ##############################################
782: ##############################################
783: sub StatusOptions {
1.165 banghart 784: my ($status, $formName,$size,$onchange,$mult)=@_;
1.21 matthew 785: $size = 1 if (!defined($size));
786: if (! defined($status)) {
787: $status = 'Active';
1.104 albertel 788: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
1.9 stredwic 789: }
1.1 stredwic 790:
791: my $Str = '';
792: $Str .= '<select name="Status"';
1.165 banghart 793: if (defined($mult)){
794: $Str .= ' multiple="multiple" ';
795: }
1.27 matthew 796: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
1.1 stredwic 797: $Str .= ' onchange="document.'.$formName.'.submit()"';
1.27 matthew 798: }
799: if (defined($onchange)) {
800: $Str .= ' onchange="'.$onchange.'"';
1.1 stredwic 801: }
1.21 matthew 802: $Str .= ' size="'.$size.'" ';
1.1 stredwic 803: $Str .= '>'."\n";
1.153 raeburn 804: foreach my $type (['Active', &mt('Currently Has Access')],
805: ['Future', &mt('Will Have Future Access')],
806: ['Expired', &mt('Previously Had Access')],
807: ['Any', &mt('Any Access Status')]) {
1.151 albertel 808: my ($name,$label) = @$type;
809: $Str .= '<option value="'.$name.'" ';
810: if ($status eq $name) {
811: $Str .= 'selected="selected" ';
812: }
813: $Str .= '>'.$label.'</option>'."\n";
814: }
815:
1.1 stredwic 816: $Str .= '</select>'."\n";
1.7 stredwic 817: }
1.12 matthew 818:
819: ########################################################
820: ########################################################
1.7 stredwic 821:
1.23 matthew 822: =pod
823:
824: =item Progess Window Handling Routines
825:
826: These routines handle the creation, update, increment, and closure of
827: progress windows. The progress window reports to the user the number
828: of items completed and an estimate of the time required to complete the rest.
829:
830: =over 4
831:
832:
833: =item &Create_PrgWin
834:
835: Writes javascript to the client to open a progress window and returns a
836: data structure used for bookkeeping.
837:
838: Inputs
839:
840: =over 4
841:
842: =item $r Apache request
843:
844: =item $title The title of the progress window
845:
846: =item $heading A description (usually 1 line) of the process being initiated.
847:
848: =item $number_to_do The total number of items being processed.
1.50 albertel 849:
850: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
851: specified)
852:
1.51 albertel 853: =item $width Specify the width in charaters of the input field.
854:
1.50 albertel 855: =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
856:
857: =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
1.23 matthew 858:
859: =back
860:
861: Returns a hash containing the progress state data structure.
862:
863:
864: =item &Update_PrgWin
865:
866: Updates the text in the progress indicator. Does not increment the count.
867: See &Increment_PrgWin.
868:
869: Inputs:
870:
871: =over 4
872:
873: =item $r Apache request
874:
875: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
876:
877: =item $displaystring The string to write to the status indicator
878:
879: =back
880:
881: Returns: none
882:
883:
884: =item Increment_PrgWin
885:
886: Increment the count of items completed for the progress window by 1.
887:
888: Inputs:
889:
890: =over 4
891:
892: =item $r Apache request
893:
894: =item $prog_state Pointer to the data structure returned by Create_PrgWin
895:
896: =item $extraInfo A description of the items being iterated over. Typically
897: 'student'.
898:
899: =back
900:
901: Returns: none
902:
903:
904: =item Close_PrgWin
905:
906: Closes the progress window.
907:
908: Inputs:
909:
910: =over 4
911:
912: =item $r Apache request
913:
914: =item $prog_state Pointer to the data structure returned by Create_PrgWin
915:
916: =back
917:
918: Returns: none
919:
920: =back
921:
922: =cut
923:
924: ########################################################
925: ########################################################
926:
1.51 albertel 927: my $uniq=0;
928: sub get_uniq_name {
929: $uniq++;
930: return 'uniquename'.$uniq;
931: }
932:
1.7 stredwic 933: # Create progress
934: sub Create_PrgWin {
1.51 albertel 935: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
936: $inputname)=@_;
1.49 albertel 937: if (!defined($type)) { $type='popup'; }
1.51 albertel 938: if (!defined($width)) { $width=55; }
1.49 albertel 939: my %prog_state;
940: $prog_state{'type'}=$type;
941: if ($type eq 'popup') {
942: $prog_state{'window'}='popwin';
1.122 albertel 943: my $start_page =
944: &Apache::loncommon::start_page($title,undef,
945: {'only_body' => 1,
946: 'bgcolor' => '#88DDFF',
947: 'js_ready' => 1});
948: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
949:
1.49 albertel 950: #the whole function called through timeout is due to issues
951: #in mozilla Read BUG #2665 if you want to know the whole story
1.122 albertel 952: &r_print($r,'<script type="text/javascript">'.
1.49 albertel 953: "var popwin;
954: function openpopwin () {
955: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
1.122 albertel 956: "popwin.document.writeln(\'".$start_page.
1.170 albertel 957: "<h4>".&mt("$heading")."<\/h4>".
1.159 banghart 958: "<form action= \"\" name=\"popremain\" method=\"post\">".
1.51 albertel 959: '<input type="text" size="'.$width.'" name="remaining" value="'.
1.131 albertel 960: &mt('Starting').'" /><\\/form>'.$end_page.
1.122 albertel 961: "\');".
1.49 albertel 962: "popwin.document.close();}".
963: "\nwindow.setTimeout(openpopwin,0)</script>");
964: $prog_state{'formname'}='popremain';
965: $prog_state{'inputname'}="remaining";
966: } elsif ($type eq 'inline') {
967: $prog_state{'window'}='window';
968: if (!$formname) {
1.51 albertel 969: $prog_state{'formname'}=&get_uniq_name();
1.159 banghart 970: &r_print($r,'<form action="" name="'.$prog_state{'formname'}.'">');
1.49 albertel 971: } else {
972: $prog_state{'formname'}=$formname;
973: }
974: if (!$inputname) {
1.51 albertel 975: $prog_state{'inputname'}=&get_uniq_name();
1.170 albertel 976: &r_print($r,&mt("$heading [_1]",' <input type="text" name="'.$prog_state{'inputname'}.'" size="'.$width.'" />'));
1.49 albertel 977: } else {
978: $prog_state{'inputname'}=$inputname;
979:
980: }
981: if (!$formname) { &r_print($r,'</form>'); }
982: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
983: }
1.7 stredwic 984:
1.16 albertel 985: $prog_state{'done'}=0;
1.23 matthew 986: $prog_state{'firststart'}=&Time::HiRes::time();
987: $prog_state{'laststart'}=&Time::HiRes::time();
1.16 albertel 988: $prog_state{'max'}=$number_to_do;
1.49 albertel 989:
1.14 albertel 990: return %prog_state;
1.7 stredwic 991: }
992:
993: # update progress
994: sub Update_PrgWin {
1.14 albertel 995: my ($r,$prog_state,$displayString)=@_;
1.159 banghart 996: &r_print($r,'<script type="text/javascript">'.$$prog_state{'window'}.'.document.'.
1.49 albertel 997: $$prog_state{'formname'}.'.'.
998: $$prog_state{'inputname'}.'.value="'.
1.48 albertel 999: $displayString.'";</script>');
1.23 matthew 1000: $$prog_state{'laststart'}=&Time::HiRes::time();
1.14 albertel 1001: }
1002:
1003: # increment progress state
1004: sub Increment_PrgWin {
1005: my ($r,$prog_state,$extraInfo)=@_;
1.16 albertel 1006: $$prog_state{'done'}++;
1.23 matthew 1007: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
1008: $$prog_state{'done'} *
1.16 albertel 1009: ($$prog_state{'max'}-$$prog_state{'done'});
1010: $time_est = int($time_est);
1.80 matthew 1011: #
1012: my $min = int($time_est/60);
1013: my $sec = $time_est % 60;
1014: #
1015: my $str;
1.91 albertel 1016: if ($min == 0 && $sec > 1) {
1.80 matthew 1017: $str = '[_2] seconds';
1.91 albertel 1018: } elsif ($min == 1 && $sec > 1) {
1019: $str = '1 minute [_2] seconds';
1.80 matthew 1020: } elsif ($min == 1 && $sec < 2) {
1021: $str = '1 minute';
1022: } elsif ($min < 10 && $sec > 1) {
1023: $str = '[_1] minutes, [_2] seconds';
1.81 matthew 1024: } elsif ($min >= 10 || $sec < 2) {
1.80 matthew 1025: $str = '[_1] minutes';
1.16 albertel 1026: }
1.80 matthew 1027: $time_est = &mt($str,$min,$sec);
1028: #
1.23 matthew 1029: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
1030: if ($lasttime > 9) {
1031: $lasttime = int($lasttime);
1032: } elsif ($lasttime < 0.01) {
1033: $lasttime = 0;
1034: } else {
1035: $lasttime = sprintf("%3.2f",$lasttime);
1036: }
1.19 matthew 1037: if ($lasttime == 1) {
1.32 www 1038: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
1.19 matthew 1039: } else {
1.32 www 1040: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
1.28 matthew 1041: }
1042: #
1.104 albertel 1043: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
1044: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
1.28 matthew 1045: if (! defined($user_browser) || ! defined($user_os)) {
1046: (undef,$user_browser,undef,undef,undef,$user_os) =
1047: &Apache::loncommon::decode_user_agent();
1048: }
1049: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
1050: $lasttime = '';
1.19 matthew 1051: }
1.49 albertel 1052: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
1053: $$prog_state{'formname'}.'.'.
1054: $$prog_state{'inputname'}.'.value="'.
1.48 albertel 1055: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
1056: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
1.23 matthew 1057: $$prog_state{'laststart'}=&Time::HiRes::time();
1.7 stredwic 1058: }
1059:
1060: # close Progress Line
1061: sub Close_PrgWin {
1.14 albertel 1062: my ($r,$prog_state)=@_;
1.49 albertel 1063: if ($$prog_state{'type'} eq 'popup') {
1064: &r_print($r,'<script>popwin.close()</script>'."\n");
1065: } elsif ($$prog_state{'type'} eq 'inline') {
1066: &Update_PrgWin($r,$prog_state,&mt('Done'));
1067: }
1.48 albertel 1068: undef(%$prog_state);
1069: }
1070:
1071: sub r_print {
1072: my ($r,$to_print)=@_;
1073: if ($r) {
1074: $r->print($to_print);
1075: $r->rflush();
1.47 sakharuk 1076: } else {
1.48 albertel 1077: print($to_print);
1.47 sakharuk 1078: }
1.1 stredwic 1079: }
1.34 www 1080:
1081: # ------------------------------------------------------- Puts directory header
1082:
1083: sub crumbs {
1.132 www 1084: my ($uri,$target,$prefix,$form,$size,$noformat,$skiplast)=@_;
1.62 matthew 1085: if (! defined($size)) {
1086: $size = '+2';
1087: }
1.100 raeburn 1088: if ($target) {
1089: $target = ' target="'.
1090: &Apache::loncommon::escape_single($target).'"';
1091: }
1.78 www 1092: my $output='';
1093: unless ($noformat) { $output.='<br /><tt><b>'; }
1094: $output.='<font size="'.$size.'">'.$prefix.'/';
1.182.2.2! raeburn 1095: if (($env{'user.adv'}) || ($env{'user.author'})) {
1.43 www 1096: my $path=$prefix.'/';
1.99 matthew 1097: foreach my $dir (split('/',$uri)) {
1098: if (! $dir) { next; }
1099: $path .= $dir;
1.150 albertel 1100: if ($path eq $uri) {
1.132 www 1101: if ($skiplast) {
1102: $output.=$dir;
1103: last;
1104: }
1105: } else {
1106: $path.='/';
1.157 albertel 1107: }
1108: my $href_path = &HTML::Entities::encode($path,'<>&"');
1.160 albertel 1109: &Apache::loncommon::inhibit_menu_check(\$href_path);
1.162 banghart 1110: if ($form) {
1111: my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
1112: $output.=qq{<a href="$href" $target>$dir</a>/};
1113: } else {
1114: $output.=qq{<a href="$href_path" $target>$dir</a>/};
1115: }
1.35 www 1116: }
1117: } else {
1.149 albertel 1118: foreach my $dir (split('/',$uri)) {
1119: if (! $dir) { next; }
1120: $output.=$dir.'/';
1121: }
1.34 www 1122: }
1.149 albertel 1123: if ($uri !~ m|/$|) { $output=~s|/$||; }
1.78 www 1124: return $output.'</font>'.($noformat?'':'</b></tt><br />');
1.34 www 1125: }
1126:
1.85 www 1127: # --------------------- A function that generates a window for the spellchecker
1128:
1129: sub spellheader {
1.123 albertel 1130: my $start_page=
1131: &Apache::loncommon::start_page('Speller Suggestions',undef,
1.140 albertel 1132: {'only_body' => 1,
1133: 'js_ready' => 1,
1134: 'bgcolor' => '#DDDDDD',
1135: 'add_entries' => {
1136: 'onload' =>
1137: 'document.forms.spellcheckform.submit()',
1138: }
1139: });
1.123 albertel 1140: my $end_page=
1141: &Apache::loncommon::end_page({'js_ready' => 1});
1142:
1.105 www 1143: my $nothing=&javascript_nothing();
1.85 www 1144: return (<<ENDCHECK);
1145: <script type="text/javascript">
1.92 albertel 1146: //<!-- BEGIN LON-CAPA Internal
1.85 www 1147: var checkwin;
1148:
1.140 albertel 1149: function spellcheckerwindow(string) {
1150: var esc_string = string.replace(/\"/g,'"');
1.105 www 1151: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1.154 albertel 1152: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1.85 www 1153: checkwin.document.close();
1154: }
1.92 albertel 1155: // END LON-CAPA Internal -->
1.85 www 1156: </script>
1157: ENDCHECK
1158: }
1159:
1160: # ---------------------------------- Generate link to spell checker for a field
1161:
1162: sub spelllink {
1163: my ($form,$field)=@_;
1164: my $linktext=&mt('Check Spelling');
1165: return (<<ENDLINK);
1.140 albertel 1166: <a href="javascript:if (typeof(document.$form.onsubmit)!='undefined') { if (document.$form.onsubmit!=null) { document.$form.onsubmit();}};spellcheckerwindow(this.document.forms.$form.$field.value);">$linktext</a>
1.85 www 1167: ENDLINK
1168: }
1169:
1.52 www 1170: # ------------------------------------------------- Output headers for HTMLArea
1171:
1.124 albertel 1172: {
1173: my @htmlareafields;
1174: sub init_htmlareafields {
1175: undef(@htmlareafields);
1176: }
1177:
1178: sub add_htmlareafields {
1179: my (@newfields) = @_;
1180: push(@htmlareafields,@newfields);
1181: }
1182:
1183: sub get_htmlareafields {
1184: return @htmlareafields;
1185: }
1186: }
1187:
1.52 www 1188: sub htmlareaheaders {
1.167 albertel 1189: return if (&htmlareablocked());
1190: return if (!&htmlareabrowser());
1.52 www 1191: return (<<ENDHEADERS);
1.167 albertel 1192: <script type="text/javascript" src="/fckeditor/fckeditor.js"></script>
1.52 www 1193: ENDHEADERS
1194: }
1195:
1.76 www 1196: # ----------------------------------------------------------------- Preferences
1197:
1198: sub disablelink {
1.77 www 1199: my @fields=@_;
1200: if (defined($#fields)) {
1201: unless ($#fields>=0) { return ''; }
1202: }
1.130 www 1203: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1.76 www 1204: }
1205:
1206: sub enablelink {
1.77 www 1207: my @fields=@_;
1208: if (defined($#fields)) {
1209: unless ($#fields>=0) { return ''; }
1210: }
1.130 www 1211: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1.76 www 1212: }
1213:
1.167 albertel 1214: # ------------------------------------------------- lang to use in html editor
1215: sub htmlarea_lang {
1216: my $lang='en';
1217: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1218: $lang=&mt('htmlarea_lang');
1219: }
1220: return $lang;
1221: }
1222:
1.72 www 1223: # ----------------------------------------- Script to activate only some fields
1224:
1225: sub htmlareaselectactive {
1.73 www 1226: my @fields=@_;
1.76 www 1227: unless (&htmlareabrowser()) { return ''; }
1.77 www 1228: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1.167 albertel 1229: my $output='<script type="text/javascript" defer="1">';
1230: my $lang = &htmlarea_lang();
1231: foreach my $field (@fields) {
1232: $output.="
1233: {
1234: var oFCKeditor = new FCKeditor('$field');
1235: oFCKeditor.Config['CustomConfigurationsPath'] =
1236: '/fckeditor/loncapaconfig.js';
1237: oFCKeditor.ReplaceTextarea();
1238: oFCKeditor.Config['AutoDetectLanguage'] = false;
1239: oFCKeditor.Config['DefaultLanguage'] = '$lang';
1240: }";
1.72 www 1241: }
1.76 www 1242: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1.77 www 1243: &disablelink(@fields);
1.72 www 1244: return $output;
1245: }
1246:
1.61 www 1247: # --------------------------------------------------------------------- Blocked
1248:
1249: sub htmlareablocked {
1.104 albertel 1250: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1.71 www 1251: return 0;
1.52 www 1252: }
1253:
1254: # ---------------------------------------- Browser capable of running HTMLArea?
1255:
1256: sub htmlareabrowser {
1257: return 1;
1258: }
1.53 matthew 1259:
1260: ############################################################
1261: ############################################################
1262:
1263: =pod
1264:
1265: =item breadcrumbs
1266:
1267: Compiles the previously registered breadcrumbs into an series of links.
1268: FAQ and BUG links will be placed on the left side of the table if they
1269: are defined for the last registered breadcrumb.
1270: Additionally supports a 'component', which will be displayed on the
1271: right side of the table (without a link).
1272: A link to help for the component will be included if one is specified.
1273:
1274: All inputs can be undef without problems.
1275:
1.138 albertel 1276: Inputs: $component (the large text on the right side of the table),
1.53 matthew 1277: $component_help
1.63 albertel 1278: $menulink (boolean, controls whether to include a link to /adm/menu)
1.138 albertel 1279: $helplink (if 'nohelp' don't include the orange help link)
1280: $css_class (optional name for the class to apply to the table for CSS)
1.182.2.1 raeburn 1281: $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
1282: when including the text on the right.
1283:
1.53 matthew 1284: Returns a string containing breadcrumbs for the current page.
1285:
1286: =item clear_breadcrumbs
1287:
1288: Clears the previously stored breadcrumbs.
1289:
1290: =item add_breadcrumb
1291:
1292: Pushes a breadcrumb on the stack of crumbs.
1293:
1294: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1295: are required. If present the keys 'faq' and 'bug' will be used to provide
1.156 albertel 1296: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title'
1297: and 'text' values won't be sent through &mt()
1.53 matthew 1298:
1299: returns: nothing
1300:
1301: =cut
1302:
1303: ############################################################
1304: ############################################################
1305: {
1306: my @Crumbs;
1.57 matthew 1307:
1.53 matthew 1308: sub breadcrumbs {
1.182.2.1 raeburn 1309: my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt) = @_;
1.53 matthew 1310: #
1.138 albertel 1311: $css_class ||= 'LC_breadcrumbs';
1312: my $Str = "\n".'<table class="'.$css_class.'"><tr><td>';
1.57 matthew 1313: #
1314: # Make the faq and bug data cascade
1315: my $faq = '';
1316: my $bug = '';
1.106 www 1317: my $help='';
1.180 riegler 1318: # Crumb Symbol
1319: my $crumbsymbol = ' ▶ ';
1.60 www 1320: # The last breadcrumb does not have a link, so handle it separately.
1.53 matthew 1321: my $last = pop(@Crumbs);
1.57 matthew 1322: #
1.70 matthew 1323: # The first one should be the course or a menu link
1.63 albertel 1324: if (!defined($menulink)) { $menulink=1; }
1.70 matthew 1325: if ($menulink) {
1326: my $description = 'Menu';
1.172 raeburn 1327: my $no_mt_descr = 0;
1.104 albertel 1328: if (exists($env{'request.course.id'}) &&
1329: $env{'request.course.id'} ne '') {
1.70 matthew 1330: $description =
1.104 albertel 1331: $env{'course.'.$env{'request.course.id'}.'.description'};
1.172 raeburn 1332: $no_mt_descr = 1;
1.70 matthew 1333: }
1.57 matthew 1334: unshift(@Crumbs,{
1.70 matthew 1335: href =>'/adm/menu',
1336: title =>'Go to main menu',
1337: target =>'_top',
1338: text =>$description,
1.172 raeburn 1339: no_mt =>$no_mt_descr,
1.70 matthew 1340: });
1.53 matthew 1341: }
1342: my $links .=
1.180 riegler 1343: join($crumbsymbol,
1.53 matthew 1344: map {
1.57 matthew 1345: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1346: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1.106 www 1347: $help = $_->{'help'} if (exists($_->{'help'}));
1.69 matthew 1348: my $result = '<a href="'.$_->{'href'}.'" ';
1349: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1350: $result .= 'target="'.$_->{'target'}.'" ';
1351: }
1.156 albertel 1352: if ($_->{'no_mt'}) {
1353: $result .='title="'.$_->{'title'}.'">'.
1354: $_->{'text'}.'</a>';
1355: } else {
1356: $result .='title="'.&mt($_->{'title'}).'">'.
1357: &mt($_->{'text'}).'</a>';
1358: }
1.69 matthew 1359: $result;
1.53 matthew 1360: } @Crumbs
1361: );
1.180 riegler 1362: $links .= $crumbsymbol if ($links ne '');
1.156 albertel 1363: if ($last->{'no_mt'}) {
1364: $links .= '<b>'.$last->{'text'}.'</b>';
1365: } else {
1366: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1367: }
1.54 matthew 1368: #
1369: my $icons = '';
1.57 matthew 1370: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1371: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1.106 www 1372: $help = $last->{'help'} if (exists($last->{'help'}));
1373: $component_help=($component_help?$component_help:$help);
1.145 albertel 1374: # if ($faq ne '') {
1375: # $icons .= &Apache::loncommon::help_open_faq($faq);
1376: # }
1.79 raeburn 1377: # if ($bug ne '') {
1378: # $icons .= &Apache::loncommon::help_open_bug($bug);
1379: # }
1.144 albertel 1380: if ($faq ne '' || $component_help ne '' || $bug ne '') {
1.137 albertel 1381: $icons .= &Apache::loncommon::help_open_menu($component,
1.126 albertel 1382: $component_help,
1.137 albertel 1383: $faq,$bug);
1.87 albertel 1384: }
1.54 matthew 1385: #
1.126 albertel 1386: $Str .= $links.'</td>';
1.54 matthew 1387: #
1.53 matthew 1388: if (defined($component)) {
1.182.2.1 raeburn 1389: $Str .= '<td class="'.$css_class.'_component">';
1390: if ($no_mt) {
1391: $Str .= $component;
1392: } else {
1393: $Str .= &mt($component);
1394: }
1.144 albertel 1395: if ($icons ne '') {
1396: $Str .= ' '.$icons;
1397: }
1398: $Str .= '</td>';
1.53 matthew 1399: }
1400: $Str .= '</tr></table>'."\n";
1401: #
1402: # Return the @Crumbs stack to what we started with
1403: push(@Crumbs,$last);
1404: shift(@Crumbs);
1405: #
1406: return $Str;
1407: }
1408:
1409: sub clear_breadcrumbs {
1410: undef(@Crumbs);
1411: }
1412:
1413: sub add_breadcrumb {
1414: push (@Crumbs,@_);
1415: }
1416:
1.57 matthew 1417: } # End of scope for @Crumbs
1.53 matthew 1418:
1419: ############################################################
1420: ############################################################
1421:
1.112 raeburn 1422: # Nested table routines.
1423: #
1424: # Routines to display form items in a multi-row table with 2 columns.
1425: # Uses nested tables to divide form elements into segments.
1426: # For examples of use see loncom/interface/lonnotify.pm
1427: #
1428: # Can be used in following order: ...
1429: # &start_pick_box()
1430: # row1
1431: # row2
1432: # row3 ... etc.
1.173 raeburn 1433: # &submit_row()
1.161 raeburn 1434: # &end_pick_box()
1.112 raeburn 1435: #
1436: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1437: # &status_select_row and &email_default_row
1438: #
1439: # Can also be used in following order:
1440: #
1441: # &start_pick_box()
1442: # &row_title()
1443: # &row_closure()
1444: # &row_title()
1445: # &row_closure() ... etc.
1446: # &submit_row()
1447: # &end_pick_box()
1448: #
1449: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1450: # as this routine adds a button for form submission.
1.113 raeburn 1451: # &submit_row() does not require a &row_closure after it.
1.112 raeburn 1452: #
1453: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1454: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1455: #
1456: # &row_title() adds a title in the left column for each segment.
1457: # &row_closure() closes a row with a 1-pixel wide black line.
1458: #
1459: # &role_select_row() provides a select box from which to choose 1 or more roles
1460: # &course_select_row provides ways of picking groups of courses
1461: # radio buttons: all, by category or by picking from a course picker pop-up
1462: # note: by category option is only displayed if a domain has implemented
1463: # selection by year, semester, department, number etc.
1464: #
1465: # &status_select_row() provides a select box from which to choose 1 or more
1466: # access types (current access, prior access, and future access)
1467: #
1468: # &email_default_row() provides text boxes for default e-mail suffixes for
1469: # different authentication types in a domain.
1470: #
1471: # &row_title() and &row_closure() are called internally by the &*_select_row
1472: # routines, but can also be called directly to start and end rows which have
1473: # needs that are not accommodated by the *_select_row() routines.
1474:
1475: sub start_pick_box {
1.142 albertel 1476: my ($css_class) = @_;
1477: if (defined($css_class)) {
1478: $css_class = 'class="'.$css_class.'"';
1479: } else {
1480: $css_class= 'class="LC_pick_box"';
1481: }
1.112 raeburn 1482: my $output = <<"END";
1.142 albertel 1483: <table $css_class>
1.112 raeburn 1484: END
1485: return $output;
1486: }
1487:
1488: sub end_pick_box {
1489: my $output = <<"END";
1490: </table>
1491: END
1492: return $output;
1493: }
1494:
1.181 bisitz 1495: sub row_headline {
1496: my $output = <<"END";
1497: <tr><td colspan="2">
1498: END
1499: return $output;
1500: }
1501:
1.112 raeburn 1502: sub row_title {
1.142 albertel 1503: my ($title,$css_title_class,$css_value_class) = @_;
1504: $css_title_class ||= 'LC_pick_box_title';
1505: $css_title_class = 'class="'.$css_title_class.'"';
1506:
1507: $css_value_class ||= 'LC_pick_box_value';
1508: $css_value_class = 'class="'.$css_value_class.'"';
1509:
1.173 raeburn 1510: if ($title ne '') {
1511: $title .= ':';
1512: }
1.112 raeburn 1513: my $output = <<"ENDONE";
1.142 albertel 1514: <tr class="LC_pick_box_row">
1515: <td $css_title_class>
1.173 raeburn 1516: $title
1.112 raeburn 1517: </td>
1.142 albertel 1518: <td $css_value_class>
1.112 raeburn 1519: ENDONE
1520: return $output;
1521: }
1522:
1523: sub row_closure {
1.143 albertel 1524: my ($no_separator) =@_;
1.113 raeburn 1525: my $output = <<"ENDTWO";
1.112 raeburn 1526: </td>
1527: </tr>
1.143 albertel 1528: ENDTWO
1529: if (!$no_separator) {
1530: $output .= <<"ENDTWO";
1.112 raeburn 1531: <tr>
1.143 albertel 1532: <td colspan="2" class="LC_pick_box_separator">
1.112 raeburn 1533: </td>
1534: </tr>
1535: ENDTWO
1.143 albertel 1536: }
1.112 raeburn 1537: return $output;
1538: }
1539:
1540: sub role_select_row {
1.147 raeburn 1541: my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
1.116 raeburn 1542: my $output;
1543: if (defined($title)) {
1.142 albertel 1544: $output = &row_title($title,$css_class);
1.116 raeburn 1545: }
1.142 albertel 1546: $output .= qq|
1.112 raeburn 1547: <select name="roles" multiple >\n|;
1.113 raeburn 1548: foreach my $role (@$roles) {
1.114 raeburn 1549: my $plrole;
1550: if ($role eq 'ow') {
1551: $plrole = &mt('Course Owner');
1.147 raeburn 1552: } elsif ($role eq 'cr') {
1553: if ($show_separate_custom) {
1554: if ($cdom ne '' && $cnum ne '') {
1555: my %course_customroles = &course_custom_roles($cdom,$cnum);
1556: foreach my $crrole (sort(keys(%course_customroles))) {
1557: my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
1558: $output .= ' <option value="'.$crrole.'">'.$plcrrole.
1559: '</option>';
1560: }
1561: }
1562: } else {
1563: $plrole = &mt('Custom Role');
1564: }
1.114 raeburn 1565: } else {
1566: $plrole=&Apache::lonnet::plaintext($role);
1567: }
1.147 raeburn 1568: if (($role ne 'cr') || (!$show_separate_custom)) {
1569: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1570: }
1.112 raeburn 1571: }
1.142 albertel 1572: $output .= qq| </select>\n|;
1.116 raeburn 1573: if (defined($title)) {
1574: $output .= &row_closure();
1575: }
1.112 raeburn 1576: return $output;
1577: }
1578:
1579: sub course_select_row {
1.142 albertel 1580: my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
1581: $css_class) = @_;
1582: my $output = &row_title($title,$css_class);
1.169 raeburn 1583: $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles);
1584: $output .= &row_closure();
1585: return $output;
1586: }
1587:
1588: sub course_selection {
1589: my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1590: my $output = qq|
1.142 albertel 1591: <script type="text/javascript">
1.112 raeburn 1592: function coursePick (formname) {
1593: for (var i=0; i<formname.coursepick.length; i++) {
1.114 raeburn 1594: if (formname.coursepick[i].value == 'category') {
1595: courseSet('');
1596: }
1.112 raeburn 1597: if (!formname.coursepick[i].checked) {
1598: if (formname.coursepick[i].value == 'specific') {
1599: formname.coursetotal.value = 0;
1600: formname.courselist = '';
1601: }
1602: }
1603: }
1604: }
1.114 raeburn 1605: function setPick (formname) {
1606: for (var i=0; i<formname.coursepick.length; i++) {
1607: if (formname.coursepick[i].value == 'category') {
1608: formname.coursepick[i].checked = true;
1609: }
1610: formname.coursetotal.value = 0;
1611: formname.courselist = '';
1612: }
1613: }
1.112 raeburn 1614: </script>
1615: |;
1616: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1.118 raeburn 1617: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1.129 raeburn 1618: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses').'<br />';
1.112 raeburn 1619: if ($totcodes > 0) {
1620: my $numtitles = @$codetitles;
1621: if ($numtitles > 0) {
1.129 raeburn 1622: $output .= '<input type="radio" name="coursepick" value="category" onclick="coursePick(this.form);alert('."'".&mt('Choose categories, from left to right')."'".')" />'.&mt('Pick courses by category:').' <br />';
1.112 raeburn 1623: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1624: '<select name="'.$$codetitles[0].
1.114 raeburn 1625: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1.112 raeburn 1626: ' <option value="-1" />Select'."\n";
1627: my @items = ();
1628: my @longitems = ();
1629: if ($$idlist{$$codetitles[0]} =~ /","/) {
1.113 raeburn 1630: @items = split(/","/,$$idlist{$$codetitles[0]});
1.112 raeburn 1631: } else {
1632: $items[0] = $$idlist{$$codetitles[0]};
1633: }
1634: if (defined($$idlist_titles{$$codetitles[0]})) {
1635: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1.113 raeburn 1636: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1.112 raeburn 1637: } else {
1638: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1639: }
1640: for (my $i=0; $i<@longitems; $i++) {
1641: if ($longitems[$i] eq '') {
1642: $longitems[$i] = $items[$i];
1643: }
1644: }
1645: } else {
1646: @longitems = @items;
1647: }
1648: for (my $i=0; $i<@items; $i++) {
1649: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1650: }
1651: $output .= '</select></td>';
1652: for (my $i=1; $i<$numtitles; $i++) {
1653: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1654: '<select name="'.$$codetitles[$i].
1655: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1656: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1657: '</select>'."\n".
1658: '</td>';
1659: }
1660: $output .= '</tr></table><br />';
1661: }
1662: }
1.169 raeburn 1663: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$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 />'."\n";
1.112 raeburn 1664: return $output;
1665: }
1666:
1667: sub status_select_row {
1.142 albertel 1668: my ($types,$title,$css_class) = @_;
1.117 raeburn 1669: my $output;
1670: if (defined($title)) {
1.142 albertel 1671: $output = &row_title($title,$css_class,'LC_pick_box_select');
1.117 raeburn 1672: }
1.142 albertel 1673: $output .= qq|
1.112 raeburn 1674: <select name="types" multiple>\n|;
1.113 raeburn 1675: foreach my $status_type (sort(keys(%{$types}))) {
1.112 raeburn 1676: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1677: }
1.142 albertel 1678: $output .= qq| </select>\n|;
1.117 raeburn 1679: if (defined($title)) {
1680: $output .= &row_closure();
1681: }
1.112 raeburn 1682: return $output;
1683: }
1684:
1685: sub email_default_row {
1.142 albertel 1686: my ($authtypes,$title,$descrip,$css_class) = @_;
1687: my $output = &row_title($title,$css_class);
1688: $output .= $descrip.
1689: &Apache::loncommon::start_data_table().
1690: &Apache::loncommon::start_data_table_header_row().
1691: '<th>'.&mt('Authentication Method').'</th>'.
1692: '<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
1693: &Apache::loncommon::end_data_table_header_row();
1.112 raeburn 1694: my $rownum = 0;
1.113 raeburn 1695: foreach my $auth (sort(keys(%{$authtypes}))) {
1.112 raeburn 1696: my ($userentry,$size);
1697: if ($auth =~ /^krb/) {
1698: $userentry = '';
1699: $size = 25;
1700: } else {
1701: $userentry = 'username@';
1702: $size = 15;
1703: }
1.142 albertel 1704: $output .= &Apache::loncommon::start_data_table_row().
1705: '<td> '.$$authtypes{$auth}.'</td>'.
1706: '<td align="right">'.$userentry.
1707: '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
1708: &Apache::loncommon::end_data_table_row();
1.112 raeburn 1709: }
1.142 albertel 1710: $output .= &Apache::loncommon::end_data_table();
1.112 raeburn 1711: $output .= &row_closure();
1712: return $output;
1713: }
1714:
1715:
1716: sub submit_row {
1.142 albertel 1717: my ($title,$cmd,$submit_text,$css_class) = @_;
1718: my $output = &row_title($title,$css_class,'LC_pick_box_submit');
1.112 raeburn 1719: $output .= qq|
1720: <br />
1721: <input type="hidden" name="command" value="$cmd" />
1722: <input type="submit" value="$submit_text"/>
1723: <br /><br />
1.142 albertel 1724: \n|;
1.112 raeburn 1725: return $output;
1726: }
1.1 stredwic 1727:
1.147 raeburn 1728: sub course_custom_roles {
1729: my ($cdom,$cnum) = @_;
1730: my %returnhash=();
1731: my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
1732: foreach my $person (sort(keys(%coursepersonnel))) {
1733: my ($role) = ($person =~ /^([^:]+):/);
1734: my ($end,$start) = split(/:/,$coursepersonnel{$person});
1735: if ($end == -1 && $start == -1) {
1736: next;
1737: }
1738: if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
1739: $returnhash{$role} ++;
1740: }
1741: }
1742: return %returnhash;
1743: }
1744:
1745:
1.119 raeburn 1746: ##############################################
1747: ##############################################
1.179 raeburn 1748:
1749: # topic_bar
1750: #
1751: # Generates a div containing a numbered (static image) followed by a title
1752: # with a background color defined in the corresponding CSS: LC_topic_bar
1753: #
1754: sub topic_bar {
1755: my ($imgnum,$title) = @_;
1756: return '
1757: <div class="LC_topic_bar">
1758: <img alt="'.&mt('Step [_1]',$imgnum).
1759: '"src="/res/adm/pages/bl_step'.$imgnum.'.gif" />
1760: <span>'.$title.'</span>
1761: </div>
1762: ';
1763: }
1764:
1765: ##############################################
1766: ##############################################
1.119 raeburn 1767:
1768: # echo_form_input
1769: #
1770: # Generates html markup to add form elements from the referrer page
1771: # as hidden form elements (values encoded) in the new page.
1772: #
1773: # Intended to support two types of use
1774: # (a) to allow backing up to earlier pages in a multi-page
1775: # form submission process using a breadcrumb trail.
1776: #
1777: # (b) to allow the current page to be reloaded with form elements
1778: # set on previous page to remain unchanged. An example would
1779: # be where the a page containing a dynamically-built table of data is
1780: # is to be redisplayed, with only the sort order of the data changed.
1781: #
1782: # Inputs:
1783: # 1. Reference to array of form elements in the submitted form on
1784: # the referrer page which are to be excluded from the echoed elements.
1785: #
1786: # 2. Reference to array of regular expressions, which if matched in the
1787: # name of the form element n the referrer page will be omitted from echo.
1788: #
1789: # Outputs: A scalar containing the html markup for the echoed form
1790: # elements (all as hidden elements, with values encoded).
1791:
1792:
1793: sub echo_form_input {
1794: my ($excluded,$regexps) = @_;
1795: my $output = '';
1796: foreach my $key (keys(%env)) {
1797: if ($key =~ /^form\.(.+)$/) {
1798: my $name = $1;
1799: my $match = 0;
1800: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1801: if (defined($regexps)) {
1802: if (@{$regexps} > 0) {
1803: foreach my $regexp (@{$regexps}) {
1804: if ($name =~ /\Q$regexp\E/) {
1805: $match = 1;
1806: last;
1807: }
1808: }
1809: }
1810: }
1811: if (!$match) {
1812: if (ref($env{$key})) {
1813: foreach my $value (@{$env{$key}}) {
1814: $value = &HTML::Entities::encode($value,'<>&"');
1815: $output .= '<input type="hidden" name="'.$name.
1816: '" value="'.$value.'" />'."\n";
1817: }
1818: } else {
1819: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1820: $output .= '<input type="hidden" name="'.$name.
1821: '" value="'.$value.'" />'."\n";
1822: }
1823: }
1824: }
1825: }
1826: }
1827: return $output;
1828: }
1829:
1830: ##############################################
1831: ##############################################
1832:
1833: # set_form_elements
1834: #
1835: # Generates javascript to set form elements to values based on
1836: # corresponding values for the same form elements when the page was
1837: # previously submitted.
1838: #
1839: # Last submission values are read from hidden form elements in referring
1840: # page which have the same name, i.e., generated by &echo_form_input().
1841: #
1842: # Intended to be called by onload event.
1843: #
1.121 raeburn 1844: # Inputs:
1845: # (a) Reference to hash of echoed form elements to be set.
1.119 raeburn 1846: #
1847: # In the hash, keys are the form element names, and the values are the
1848: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1849: # hidden).
1.121 raeburn 1850: #
1851: # (b) Optional reference to hash of stored elements to be set.
1852: #
1853: # If the page being displayed is a page which permits modification of
1854: # previously stored data, e.g., the first page in a multi-page submission,
1855: # then if stored is supplied, form elements will be set to the last stored
1856: # values. If user supplied values are also available for the same elements
1857: # these will replace the stored values.
1858: #
1.119 raeburn 1859: # Output:
1860: #
1861: # javascript function - set_form_elements() which sets form elements,
1862: # expects an argument: formname - the name of the form according to
1863: # the DOM, e.g., document.compose
1864:
1865: sub set_form_elements {
1.121 raeburn 1866: my ($elements,$stored) = @_;
1867: my %values;
1.119 raeburn 1868: my $output .= 'function setFormElements(courseForm) {
1.121 raeburn 1869: ';
1870: if (defined($stored)) {
1871: foreach my $name (keys(%{$stored})) {
1872: if (exists($$elements{$name})) {
1873: if (ref($$stored{$name}) eq 'ARRAY') {
1874: $values{$name} = $$stored{$name};
1875: } else {
1876: @{$values{$name}} = ($$stored{$name});
1877: }
1878: }
1879: }
1880: }
1881:
1.119 raeburn 1882: foreach my $key (keys(%env)) {
1883: if ($key =~ /^form\.(.+)$/) {
1884: my $name = $1;
1885: if (exists($$elements{$name})) {
1.121 raeburn 1886: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1887: }
1888: }
1889: }
1890:
1891: foreach my $name (keys(%values)) {
1892: for (my $i=0; $i<@{$values{$name}}; $i++) {
1893: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1894: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1895: $values{$name}[$i] =~ s/"/\\"/g;
1896: }
1897: if ($$elements{$name} eq 'text') {
1898: my $numvalues = @{$values{$name}};
1899: if ($numvalues > 1) {
1900: my $valuestring = join('","',@{$values{$name}});
1901: $output .= qq|
1.119 raeburn 1902: var textvalues = new Array ("$valuestring");
1.147 raeburn 1903: var total = courseForm.elements['$name'].length;
1.119 raeburn 1904: if (total > $numvalues) {
1905: total = $numvalues;
1906: }
1907: for (var i=0; i<total; i++) {
1.147 raeburn 1908: courseForm.elements['$name']\[i].value = textvalues[i];
1.119 raeburn 1909: }
1910: |;
1.121 raeburn 1911: } else {
1912: $output .= qq|
1.147 raeburn 1913: courseForm.elements['$name'].value = "$values{$name}[0]";
1.119 raeburn 1914: |;
1.121 raeburn 1915: }
1916: } else {
1917: $output .= qq|
1.147 raeburn 1918: var elementLength = courseForm.elements['$name'].length;
1.119 raeburn 1919: if (elementLength==undefined) {
1920: |;
1.121 raeburn 1921: foreach my $value (@{$values{$name}}) {
1922: if ($$elements{$name} eq 'selectbox') {
1923: $output .= qq|
1.147 raeburn 1924: if (courseForm.elements['$name'].options[0].value == "$value") {
1925: courseForm.elements['$name'].options[0].selected = true;
1.119 raeburn 1926: }|;
1.121 raeburn 1927: } elsif (($$elements{$name} eq 'radio') ||
1928: ($$elements{$name} eq 'checkbox')) {
1929: $output .= qq|
1.147 raeburn 1930: if (courseForm.elements['$name'].value == "$value") {
1.148 albertel 1931: courseForm.elements['$name'].checked = true;
1.119 raeburn 1932: }|;
1.121 raeburn 1933: }
1934: }
1935: $output .= qq|
1.119 raeburn 1936: }
1937: else {
1.147 raeburn 1938: for (var i=0; i<courseForm.elements['$name'].length; i++) {
1.119 raeburn 1939: |;
1.121 raeburn 1940: if ($$elements{$name} eq 'selectbox') {
1941: $output .= qq|
1.147 raeburn 1942: courseForm.elements['$name'].options[i].selected = false;|;
1.121 raeburn 1943: } elsif (($$elements{$name} eq 'radio') ||
1944: ($$elements{$name} eq 'checkbox')) {
1945: $output .= qq|
1.147 raeburn 1946: courseForm.elements['$name']\[i].checked = false;|;
1.121 raeburn 1947: }
1948: $output .= qq|
1.119 raeburn 1949: }
1.147 raeburn 1950: for (var j=0; j<courseForm.elements['$name'].length; j++) {
1.119 raeburn 1951: |;
1.121 raeburn 1952: foreach my $value (@{$values{$name}}) {
1953: if ($$elements{$name} eq 'selectbox') {
1954: $output .= qq|
1.147 raeburn 1955: if (courseForm.elements['$name'].options[j].value == "$value") {
1956: courseForm.elements['$name'].options[j].selected = true;
1.119 raeburn 1957: }|;
1.121 raeburn 1958: } elsif (($$elements{$name} eq 'radio') ||
1959: ($$elements{$name} eq 'checkbox')) {
1960: $output .= qq|
1.147 raeburn 1961: if (courseForm.elements['$name']\[j].value == "$value") {
1962: courseForm.elements['$name']\[j].checked = true;
1.119 raeburn 1963: }|;
1.121 raeburn 1964: }
1965: }
1966: $output .= qq|
1.119 raeburn 1967: }
1968: }
1969: |;
1970: }
1971: }
1972: $output .= "
1973: }\n";
1974: return $output;
1975: }
1976:
1.158 raeburn 1977: ##############################################
1978: ##############################################
1979:
1980: # javascript_valid_email
1981: #
1982: # Generates javascript to validate an e-mail address.
1983: # Returns a javascript function which accetps a form field as argumnent, and
1984: # returns false if field.value does not satisfy two regular expression matches
1985: # for a valid e-mail address. Backwards compatible with old browsers without
1986: # support for javascript RegExp (just checks for @ in field.value in this case).
1987:
1988: sub javascript_valid_email {
1989: my $scripttag .= <<'END';
1990: function validmail(field) {
1991: var str = field.value;
1992: if (window.RegExp) {
1993: var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
1994: var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
1995: var reg1 = new RegExp(reg1str);
1996: var reg2 = new RegExp(reg2str);
1997: if (!reg1.test(str) && reg2.test(str)) {
1998: return true;
1999: }
2000: return false;
2001: }
2002: else
2003: {
2004: if(str.indexOf("@") >= 0) {
2005: return true;
2006: }
2007: return false;
2008: }
2009: }
2010: END
2011: return $scripttag;
2012: }
2013:
1.176 foxr 2014:
2015:
1.1 stredwic 2016: 1;
1.23 matthew 2017:
1.1 stredwic 2018: __END__
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