Annotation of loncom/interface/lonhtmlcommon.pm, revision 1.125
1.2 www 1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
1.125 ! albertel 4: # $Id: lonhtmlcommon.pm,v 1.124 2006/04/18 22:35:41 albertel 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;
1.1 stredwic 63:
1.40 www 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.
1.103 albertel 84: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" border="0" /></a>'.
1.40 www 85: &Apache::loncommon::help_open_topic('About_Bombs');
86: }
87: }
88: return '';
89: }
1.26 matthew 90:
91: ##############################################
92: ##############################################
93:
1.41 www 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);
1.111 www 103: if (scalar(keys(%recent))>20) {
1.41 www 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:
1.89 banghart 121: sub remove_recent {
122: my ($area,$names)=@_;
123: my $file=&recent_filename($area);
124: return &Apache::lonnet::del($file,$names);
125: }
126:
1.41 www 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'".
1.96 albertel 131: ($event?" onchange='$event'":'').
1.41 www 132: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
133: foreach (sort keys %recent) {
134: unless ($_=~/^error\:/) {
1.94 foxr 135: my $escaped = &Apache::loncommon::escape_url($_);
136: $return.="\n<option value='$escaped'>".
1.41 www 137: &Apache::lonnet::unescape((split(/\&/,$recent{$_}))[1]).
138: '</option>';
139: }
140: }
141: $return.="\n</select>\n";
142: return $return;
143: }
144:
1.97 albertel 145: sub get_recent {
146: my ($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++ >= $n)) {last;}
163: }
164:
165: return %return_hash;
166: }
167:
168:
1.41 www 169:
1.26 matthew 170: =pod
171:
172: =item textbox
173:
174: =cut
175:
176: ##############################################
177: ##############################################
178: sub textbox {
179: my ($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 $Str;
184: }
185:
186: ##############################################
187: ##############################################
188:
189: =pod
190:
191: =item checkbox
192:
193: =cut
194:
195: ##############################################
196: ##############################################
197: sub checkbox {
1.68 matthew 198: my ($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 .= ' />';
1.26 matthew 207: return $Str;
208: }
209:
1.120 albertel 210:
211: =pod
212:
213: =item radiobutton
214:
215: =cut
216:
217: ##############################################
218: ##############################################
219: sub radio {
220: my ($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:
1.10 matthew 232: ##############################################
233: ##############################################
234:
235: =pod
236:
237: =item &date_setter
238:
1.22 matthew 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:
1.10 matthew 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:
1.26 matthew 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:
1.59 matthew 264: =item $includeempty
265:
266: =item $state
267:
268: Specifies the initial state of the form elements. Either 'disabled' or empty.
269: Defaults to empty, which indiciates the form elements are not disabled.
270:
1.22 matthew 271: =back
272:
273: Bugs
274:
275: The method used to restrict user input will fail in the year 2400.
276:
1.10 matthew 277: =cut
278:
279: ##############################################
280: ##############################################
281: sub date_setter {
1.67 matthew 282: my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
1.108 www 283: $no_hh_mm_ss,$defhour,$defmin,$defsec) = @_;
1.107 www 284: my $wasdefined=1;
1.59 matthew 285: if (! defined($state) || $state ne 'disabled') {
286: $state = '';
287: }
1.67 matthew 288: if (! defined($no_hh_mm_ss)) {
289: $no_hh_mm_ss = 0;
290: }
1.110 www 291: if ($currentvalue eq 'now') {
292: $currentvalue=time;
293: }
294: if ((!defined($currentvalue)) || ($currentvalue eq '')) {
295: $wasdefined=0;
296: if ($includeempty) {
297: $currentvalue = 0;
298: } else {
1.39 www 299: $currentvalue = time;
300: }
1.10 matthew 301: }
302: # other potentially useful values: wkday,yrday,is_daylight_savings
1.65 albertel 303: my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
1.39 www 304: if ($currentvalue) {
305: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
306: localtime($currentvalue);
307: $year += 1900;
308: }
1.107 www 309: unless ($wasdefined) {
1.110 www 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: }
1.107 www 322: }
1.10 matthew 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: }
1.95 matthew 356:
1.59 matthew 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:
1.29 www 375: function $dname\_opencalendar() {
1.59 matthew 376: if (! document.$formname.$dname\_month.disabled) {
377: var calwin=window.open(
1.29 www 378: "/adm/announcements?pickdate=yes&formname=$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");
1.59 matthew 383: }
1.29 www 384:
385: }
1.10 matthew 386: </script>
387: ENDJS
1.95 matthew 388: $result .= ' <nobr>';
1.96 albertel 389: my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
1.67 matthew 390: # Month
1.10 matthew 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');
1.95 matthew 395: if ($includeempty) { $monthselector.="<option value=''></option>"; }
1.10 matthew 396: for(my $m = 1;$m <=$#Months;$m++) {
1.95 matthew 397: $monthselector .= qq{ <option value="$m" };
398: $monthselector .= "selected " if ($m-1 eq $month);
399: $monthselector .= '> '.&mt($Months[$m]).' </option>';
1.10 matthew 400: }
1.95 matthew 401: $monthselector.= ' </select>';
1.67 matthew 402: # Day
1.96 albertel 403: my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
1.67 matthew 404: # Year
1.96 albertel 405: my $yearselector = qq{<input type="year" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
1.95 matthew 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>');
1.67 matthew 442: }
1.95 matthew 443: $result .= "</nobr>\n<!-- end $dname date setting form -->\n";
1.10 matthew 444: return $result;
445: }
446:
447: ##############################################
448: ##############################################
449:
1.22 matthew 450: =pod
451:
1.10 matthew 452: =item &get_date_from_form
1.22 matthew 453:
454: get_date_from_form retrieves the date specified in an &date_setter form.
1.10 matthew 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: #
1.104 albertel 480: if (defined($env{'form.'.$dname.'_second'})) {
481: my $tmpsec = $env{'form.'.$dname.'_second'};
1.10 matthew 482: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
483: $sec = $tmpsec;
484: }
1.64 albertel 485: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
1.67 matthew 486: } else {
487: $sec = 0;
1.10 matthew 488: }
1.104 albertel 489: if (defined($env{'form.'.$dname.'_minute'})) {
490: my $tmpmin = $env{'form.'.$dname.'_minute'};
1.10 matthew 491: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
492: $min = $tmpmin;
493: }
1.64 albertel 494: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
1.67 matthew 495: } else {
496: $min = 0;
1.10 matthew 497: }
1.104 albertel 498: if (defined($env{'form.'.$dname.'_hour'})) {
499: my $tmphour = $env{'form.'.$dname.'_hour'};
1.33 matthew 500: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
1.10 matthew 501: $hour = $tmphour;
502: }
1.67 matthew 503: } else {
504: $hour = 0;
1.10 matthew 505: }
1.104 albertel 506: if (defined($env{'form.'.$dname.'_day'})) {
507: my $tmpday = $env{'form.'.$dname.'_day'};
1.10 matthew 508: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
509: $day = $tmpday;
510: }
511: }
1.104 albertel 512: if (defined($env{'form.'.$dname.'_month'})) {
513: my $tmpmonth = $env{'form.'.$dname.'_month'};
1.10 matthew 514: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
515: $month = $tmpmonth - 1;
516: }
517: }
1.104 albertel 518: if (defined($env{'form.'.$dname.'_year'})) {
519: my $tmpyear = $env{'form.'.$dname.'_year'};
1.10 matthew 520: if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
521: $year = $tmpyear - 1900;
522: }
523: }
1.24 www 524: if (($year<70) || ($year>137)) { return undef; }
1.33 matthew 525: if (defined($sec) && defined($min) && defined($hour) &&
526: defined($day) && defined($month) && defined($year) &&
1.125 ! albertel 527: eval('&timelocal($sec,$min,$hour,$day,$month,$year)')) {
1.10 matthew 528: return &timelocal($sec,$min,$hour,$day,$month,$year);
529: } else {
530: return undef;
531: }
1.20 matthew 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;
1.109 www 550: function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
1.20 matthew 551: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
552: +"&value="+escape(value)+"&marker="+escape(marker)
553: +"&return="+escape(ret)
1.109 www 554: +"&call="+escape(call)+"&name="+escape(dis)
555: +"&defhour="+escape(hour)+"&defmin="+escape(min)
556: +"&defsec="+escape(sec),"LONCAPAparms",
1.20 matthew 557: "height=350,width=350,scrollbars=no,menubar=no");
558: }
559: END
560: return $Str;
1.10 matthew 561: }
562:
563: ##############################################
564: ##############################################
1.17 matthew 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;
1.104 albertel 583: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
584: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
1.17 matthew 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:
1.90 www 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;
1.104 albertel 602: $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
603: $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
1.90 www 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:
1.21 matthew 616:
1.17 matthew 617: ##############################################
618: ##############################################
619:
1.21 matthew 620: =pod
1.17 matthew 621:
1.21 matthew 622: =item &StatusOptions()
1.10 matthew 623:
1.21 matthew 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'.
1.6 stredwic 626:
1.21 matthew 627: Inputs:
1.6 stredwic 628:
1.21 matthew 629: $status: the currently selected status. If undefined the value of
1.104 albertel 630: $env{'form.Status'} is taken. If that is undefined, a value of 'Active'
1.21 matthew 631: is used.
1.6 stredwic 632:
1.21 matthew 633: $formname: The name of the form. If defined the onchange attribute of
634: the selection box is set to document.$formname.submit().
1.6 stredwic 635:
1.21 matthew 636: $size: the size (number of lines) of the selection box.
1.6 stredwic 637:
1.27 matthew 638: $onchange: javascript to use when the value is changed. Enclosed in
639: double quotes, ""s, not single quotes.
640:
1.21 matthew 641: Returns: a perl string as described.
1.1 stredwic 642:
1.21 matthew 643: =cut
1.9 stredwic 644:
1.21 matthew 645: ##############################################
646: ##############################################
647: sub StatusOptions {
1.27 matthew 648: my ($status, $formName,$size,$onchange)=@_;
1.21 matthew 649: $size = 1 if (!defined($size));
650: if (! defined($status)) {
651: $status = 'Active';
1.104 albertel 652: $status = $env{'form.Status'} if (exists($env{'form.Status'}));
1.9 stredwic 653: }
1.1 stredwic 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: $Str .= '<select name="Status"';
1.27 matthew 665: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
1.1 stredwic 666: $Str .= ' onchange="document.'.$formName.'.submit()"';
1.27 matthew 667: }
668: if (defined($onchange)) {
669: $Str .= ' onchange="'.$onchange.'"';
1.1 stredwic 670: }
1.21 matthew 671: $Str .= ' size="'.$size.'" ';
1.1 stredwic 672: $Str .= '>'."\n";
1.21 matthew 673: $Str .= '<option value="Active" '.$OpSel1.'>'.
1.37 www 674: &mt('Currently Enrolled').'</option>'."\n";
1.21 matthew 675: $Str .= '<option value="Expired" '.$OpSel2.'>'.
1.37 www 676: &mt('Previously Enrolled').'</option>'."\n";
1.21 matthew 677: $Str .= '<option value="Any" '.$OpSel3.'>'.
1.37 www 678: &mt('Any Enrollment Status').'</option>'."\n";
1.1 stredwic 679: $Str .= '</select>'."\n";
1.7 stredwic 680: }
1.12 matthew 681:
682: ########################################################
683: ########################################################
1.7 stredwic 684:
1.23 matthew 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.
1.50 albertel 712:
713: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
714: specified)
715:
1.51 albertel 716: =item $width Specify the width in charaters of the input field.
717:
1.50 albertel 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
1.23 matthew 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:
1.51 albertel 790: my $uniq=0;
791: sub get_uniq_name {
792: $uniq++;
793: return 'uniquename'.$uniq;
794: }
795:
1.7 stredwic 796: # Create progress
797: sub Create_PrgWin {
1.51 albertel 798: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
799: $inputname)=@_;
1.49 albertel 800: if (!defined($type)) { $type='popup'; }
1.51 albertel 801: if (!defined($width)) { $width=55; }
1.49 albertel 802: my %prog_state;
803: $prog_state{'type'}=$type;
804: if ($type eq 'popup') {
805: $prog_state{'window'}='popwin';
1.122 albertel 806: my $start_page =
807: &Apache::loncommon::start_page($title,undef,
808: {'only_body' => 1,
809: 'bgcolor' => '#88DDFF',
810: 'js_ready' => 1});
811: my $end_page = &Apache::loncommon::end_page({'js_ready' => 1});
812:
1.49 albertel 813: #the whole function called through timeout is due to issues
814: #in mozilla Read BUG #2665 if you want to know the whole story
1.122 albertel 815: &r_print($r,'<script type="text/javascript">'.
1.49 albertel 816: "var popwin;
817: function openpopwin () {
818: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
1.122 albertel 819: "popwin.document.writeln(\'".$start_page.
1.48 albertel 820: "<h4>$heading</h4>".
821: "<form name=popremain>".
1.51 albertel 822: '<input type="text" size="'.$width.'" name="remaining" value="'.
1.122 albertel 823: &mt('Starting').'"></form>'.$end_page.
824: "\');".
1.49 albertel 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) {
1.51 albertel 832: $prog_state{'formname'}=&get_uniq_name();
833: &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
1.49 albertel 834: } else {
835: $prog_state{'formname'}=$formname;
836: }
837: if (!$inputname) {
1.51 albertel 838: $prog_state{'inputname'}=&get_uniq_name();
1.56 albertel 839: &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
1.51 albertel 840: '" size="'.$width.'" />');
1.49 albertel 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: }
1.7 stredwic 848:
1.16 albertel 849: $prog_state{'done'}=0;
1.23 matthew 850: $prog_state{'firststart'}=&Time::HiRes::time();
851: $prog_state{'laststart'}=&Time::HiRes::time();
1.16 albertel 852: $prog_state{'max'}=$number_to_do;
1.49 albertel 853:
1.14 albertel 854: return %prog_state;
1.7 stredwic 855: }
856:
857: # update progress
858: sub Update_PrgWin {
1.14 albertel 859: my ($r,$prog_state,$displayString)=@_;
1.49 albertel 860: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
861: $$prog_state{'formname'}.'.'.
862: $$prog_state{'inputname'}.'.value="'.
1.48 albertel 863: $displayString.'";</script>');
1.23 matthew 864: $$prog_state{'laststart'}=&Time::HiRes::time();
1.14 albertel 865: }
866:
867: # increment progress state
868: sub Increment_PrgWin {
869: my ($r,$prog_state,$extraInfo)=@_;
1.16 albertel 870: $$prog_state{'done'}++;
1.23 matthew 871: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
872: $$prog_state{'done'} *
1.16 albertel 873: ($$prog_state{'max'}-$$prog_state{'done'});
874: $time_est = int($time_est);
1.80 matthew 875: #
876: my $min = int($time_est/60);
877: my $sec = $time_est % 60;
878: #
879: my $str;
1.91 albertel 880: if ($min == 0 && $sec > 1) {
1.80 matthew 881: $str = '[_2] seconds';
1.91 albertel 882: } elsif ($min == 1 && $sec > 1) {
883: $str = '1 minute [_2] seconds';
1.80 matthew 884: } elsif ($min == 1 && $sec < 2) {
885: $str = '1 minute';
886: } elsif ($min < 10 && $sec > 1) {
887: $str = '[_1] minutes, [_2] seconds';
1.81 matthew 888: } elsif ($min >= 10 || $sec < 2) {
1.80 matthew 889: $str = '[_1] minutes';
1.16 albertel 890: }
1.80 matthew 891: $time_est = &mt($str,$min,$sec);
892: #
1.23 matthew 893: my $lasttime = &Time::HiRes::time()-$$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: }
1.19 matthew 901: if ($lasttime == 1) {
1.32 www 902: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
1.19 matthew 903: } else {
1.32 www 904: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
1.28 matthew 905: }
906: #
1.104 albertel 907: my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
908: my $user_os = $env{'browser.os'} if (exists($env{'browser.os'}));
1.28 matthew 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: $lasttime = '';
1.19 matthew 915: }
1.49 albertel 916: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
917: $$prog_state{'formname'}.'.'.
918: $$prog_state{'inputname'}.'.value="'.
1.48 albertel 919: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
920: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
1.23 matthew 921: $$prog_state{'laststart'}=&Time::HiRes::time();
1.7 stredwic 922: }
923:
924: # close Progress Line
925: sub Close_PrgWin {
1.14 albertel 926: my ($r,$prog_state)=@_;
1.49 albertel 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: }
1.48 albertel 932: undef(%$prog_state);
933: }
934:
935: sub r_print {
936: my ($r,$to_print)=@_;
937: if ($r) {
938: $r->print($to_print);
939: $r->rflush();
1.47 sakharuk 940: } else {
1.48 albertel 941: print($to_print);
1.47 sakharuk 942: }
1.1 stredwic 943: }
1.34 www 944:
945: # ------------------------------------------------------- Puts directory header
946:
947: sub crumbs {
1.78 www 948: my ($uri,$target,$prefix,$form,$size,$noformat)=@_;
1.62 matthew 949: if (! defined($size)) {
950: $size = '+2';
951: }
1.100 raeburn 952: if ($target) {
953: $target = ' target="'.
954: &Apache::loncommon::escape_single($target).'"';
955: }
1.78 www 956: my $output='';
957: unless ($noformat) { $output.='<br /><tt><b>'; }
958: $output.='<font size="'.$size.'">'.$prefix.'/';
1.104 albertel 959: if ($env{'user.adv'}) {
1.43 www 960: my $path=$prefix.'/';
1.99 matthew 961: foreach my $dir (split('/',$uri)) {
962: if (! $dir) { next; }
963: $path .= $dir;
1.43 www 964: unless ($path eq $uri) { $path.='/'; }
1.99 matthew 965: my $linkpath = &Apache::loncommon::escape_single($path);
1.98 matthew 966: if ($form) {
1.99 matthew 967: $linkpath=
968: qq{javascript:$form.action='$linkpath';$form.submit();};
1.98 matthew 969: }
1.99 matthew 970: $output.=qq{<a href="$linkpath" $target>$dir</a>/};
1.35 www 971: }
972: } else {
973: $output.=$uri;
1.34 www 974: }
1.36 www 975: unless ($uri=~/\/$/) { $output=~s/\/$//; }
1.78 www 976: return $output.'</font>'.($noformat?'':'</b></tt><br />');
1.34 www 977: }
978:
1.85 www 979: # --------------------- A function that generates a window for the spellchecker
980:
981: sub spellheader {
1.123 albertel 982: my $start_page=
983: &Apache::loncommon::start_page('Speller Suggestions',undef,
984: {'only_body' => 1,
985: 'js_ready' => 1,
986: 'bgcolor' => '#DDDDDD',});
987: my $end_page=
988: &Apache::loncommon::end_page({'js_ready' => 1});
989:
1.105 www 990: my $nothing=&javascript_nothing();
1.85 www 991: return (<<ENDCHECK);
992: <script type="text/javascript">
1.92 albertel 993: //<!-- BEGIN LON-CAPA Internal
1.85 www 994: var checkwin;
995:
996: function spellcheckerwindow() {
1.105 www 997: checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1.123 albertel 998: checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="" /></form>$end_page');
1.85 www 999: checkwin.document.close();
1000: }
1.92 albertel 1001: // END LON-CAPA Internal -->
1.85 www 1002: </script>
1003: ENDCHECK
1004: }
1005:
1006: # ---------------------------------- Generate link to spell checker for a field
1007:
1008: sub spelllink {
1009: my ($form,$field)=@_;
1010: my $linktext=&mt('Check Spelling');
1011: return (<<ENDLINK);
1.105 www 1012: <a href="javascript:if (typeof(document.$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>
1.85 www 1013: ENDLINK
1014: }
1015:
1.52 www 1016: # ------------------------------------------------- Output headers for HTMLArea
1017:
1.124 albertel 1018: {
1019: my @htmlareafields;
1020: sub init_htmlareafields {
1021: undef(@htmlareafields);
1022: }
1023:
1024: sub add_htmlareafields {
1025: my (@newfields) = @_;
1026: push(@htmlareafields,@newfields);
1027: }
1028:
1029: sub get_htmlareafields {
1030: return @htmlareafields;
1031: }
1032: }
1033:
1.52 www 1034: sub htmlareaheaders {
1.71 www 1035: if (&htmlareablocked()) { return ''; }
1.76 www 1036: unless (&htmlareabrowser()) { return ''; }
1.52 www 1037: my $lang='en';
1.71 www 1038: if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
1039: $lang=&mt('htmlarea_lang');
1040: }
1.52 www 1041: return (<<ENDHEADERS);
1.61 www 1042: <script type="text/javascript">
1.73 www 1043: _editor_url='/htmlarea/';
1044: _editor_lang='$lang';
1.61 www 1045: </script>
1.52 www 1046: <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
1047: ENDHEADERS
1048: }
1049:
1.74 www 1050: # ------------------------------------------------- Activate additional buttons
1051:
1052: sub htmlareaaddbuttons {
1053: if (&htmlareablocked()) { return ''; }
1.76 www 1054: unless (&htmlareabrowser()) { return ''; }
1.74 www 1055: return (<<ENDADDBUTTON);
1056: var config=new HTMLArea.Config();
1057: config.registerButton('ed_math','LaTeX Inline',
1058: '/htmlarea/images/ed_math.gif',false,
1059: function(editor,id) {
1.88 albertel 1060: editor.surroundHTML(' <m>\$','\$</m> ');
1.74 www 1061: }
1062: );
1063: config.registerButton('ed_math_eqn','LaTeX Equation',
1064: '/htmlarea/images/ed_math_eqn.gif',false,
1065: function(editor,id) {
1.75 www 1066: editor.surroundHTML(
1.88 albertel 1067: ' \\n<center><m>\\\\[','\\\\]</m></center>\\n ');
1.74 www 1068: }
1069: );
1070: config.toolbar.push(['ed_math','ed_math_eqn']);
1071: ENDADDBUTTON
1072: }
1.76 www 1073:
1074: # ----------------------------------------------------------------- Preferences
1075:
1076: sub disablelink {
1.77 www 1077: my @fields=@_;
1078: if (defined($#fields)) {
1079: unless ($#fields>=0) { return ''; }
1080: }
1.93 albertel 1081: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&Apache::lonnet::escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1.76 www 1082: }
1083:
1084: sub enablelink {
1.77 www 1085: my @fields=@_;
1086: if (defined($#fields)) {
1087: unless ($#fields>=0) { return ''; }
1088: }
1.93 albertel 1089: return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&Apache::lonnet::escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1.76 www 1090: }
1091:
1.72 www 1092: # ----------------------------------------- Script to activate only some fields
1093:
1094: sub htmlareaselectactive {
1.73 www 1095: my @fields=@_;
1.76 www 1096: unless (&htmlareabrowser()) { return ''; }
1.77 www 1097: if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1.74 www 1098: my $output='<script type="text/javascript" defer="1">'.
1099: &htmlareaaddbuttons();
1.73 www 1100: foreach(@fields) {
1.74 www 1101: $output.="\nHTMLArea.replace('$_',config);";
1.72 www 1102: }
1.76 www 1103: $output.="\nwindow.status='Activated Editfields';\n</script><br />".
1.77 www 1104: &disablelink(@fields);
1.72 www 1105: return $output;
1106: }
1107:
1.61 www 1108: # --------------------------------------------------------------------- Blocked
1109:
1110: sub htmlareablocked {
1.104 albertel 1111: unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1.71 www 1112: return 0;
1.52 www 1113: }
1114:
1115: # ---------------------------------------- Browser capable of running HTMLArea?
1116:
1117: sub htmlareabrowser {
1118: return 1;
1119: }
1.53 matthew 1120:
1121: ############################################################
1122: ############################################################
1123:
1124: =pod
1125:
1126: =item breadcrumbs
1127:
1128: Compiles the previously registered breadcrumbs into an series of links.
1129: FAQ and BUG links will be placed on the left side of the table if they
1130: are defined for the last registered breadcrumb.
1131: Additionally supports a 'component', which will be displayed on the
1132: right side of the table (without a link).
1133: A link to help for the component will be included if one is specified.
1134:
1135: All inputs can be undef without problems.
1136:
1137: Inputs: $color (the background color of the table returned),
1138: $component (the large text on the right side of the table),
1139: $component_help
1.63 albertel 1140: $function (role to get colors from)
1141: $domain (domian of role)
1142: $menulink (boolean, controls whether to include a link to /adm/menu)
1.53 matthew 1143:
1144: Returns a string containing breadcrumbs for the current page.
1145:
1146: =item clear_breadcrumbs
1147:
1148: Clears the previously stored breadcrumbs.
1149:
1150: =item add_breadcrumb
1151:
1152: Pushes a breadcrumb on the stack of crumbs.
1153:
1154: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
1155: are required. If present the keys 'faq' and 'bug' will be used to provide
1156: links to the FAQ and bug sites.
1157:
1158: returns: nothing
1159:
1160: =cut
1161:
1162: ############################################################
1163: ############################################################
1164: {
1165: my @Crumbs;
1.57 matthew 1166:
1.53 matthew 1167: sub breadcrumbs {
1.87 albertel 1168: my ($color,$component,$component_help,$function,$domain,$menulink,
1169: $helplink) = @_;
1.55 matthew 1170: if (! defined($color)) {
1171: if (! defined($function)) {
1172: $function = &Apache::loncommon::get_users_function();
1173: }
1174: $color = &Apache::loncommon::designparm($function.'.tabbg',
1175: $domain);
1176: }
1.53 matthew 1177: #
1178: my $Str = "\n".
1179: '<table width="100%" border="0" cellpadding="0" cellspacing="0">'.
1180: '<tr><td bgcolor="'.$color.'">'.
1181: '<font size="-1">';
1.57 matthew 1182: #
1183: # Make the faq and bug data cascade
1184: my $faq = '';
1185: my $bug = '';
1.106 www 1186: my $help='';
1.60 www 1187: # The last breadcrumb does not have a link, so handle it separately.
1.53 matthew 1188: my $last = pop(@Crumbs);
1.57 matthew 1189: #
1.70 matthew 1190: # The first one should be the course or a menu link
1.63 albertel 1191: if (!defined($menulink)) { $menulink=1; }
1.70 matthew 1192: if ($menulink) {
1193: my $description = 'Menu';
1.104 albertel 1194: if (exists($env{'request.course.id'}) &&
1195: $env{'request.course.id'} ne '') {
1.70 matthew 1196: $description =
1.104 albertel 1197: $env{'course.'.$env{'request.course.id'}.'.description'};
1.70 matthew 1198: }
1.57 matthew 1199: unshift(@Crumbs,{
1.70 matthew 1200: href =>'/adm/menu',
1201: title =>'Go to main menu',
1202: target =>'_top',
1203: text =>$description,
1204: });
1.53 matthew 1205: }
1206: my $links .=
1207: join('->',
1208: map {
1.57 matthew 1209: $faq = $_->{'faq'} if (exists($_->{'faq'}));
1210: $bug = $_->{'bug'} if (exists($_->{'bug'}));
1.106 www 1211: $help = $_->{'help'} if (exists($_->{'help'}));
1.69 matthew 1212: my $result = '<a href="'.$_->{'href'}.'" ';
1213: if (defined($_->{'target'}) && $_->{'target'} ne '') {
1214: $result .= 'target="'.$_->{'target'}.'" ';
1215: }
1216: $result .='title="'.&mt($_->{'title'}).'">'.
1217: &mt($_->{'text'}).'</a>';
1218: $result;
1.53 matthew 1219: } @Crumbs
1220: );
1221: $links .= '->' if ($links ne '');
1.82 albertel 1222: $links .= '<b>'.&mt($last->{'text'}).'</b>';
1.54 matthew 1223: #
1224: my $icons = '';
1.57 matthew 1225: $faq = $last->{'faq'} if (exists($last->{'faq'}));
1226: $bug = $last->{'bug'} if (exists($last->{'bug'}));
1.106 www 1227: $help = $last->{'help'} if (exists($last->{'help'}));
1228: $component_help=($component_help?$component_help:$help);
1.79 raeburn 1229: # if ($faq ne '') {
1230: # $icons .= &Apache::loncommon::help_open_faq($faq);
1231: # }
1232: # if ($bug ne '') {
1233: # $icons .= &Apache::loncommon::help_open_bug($bug);
1234: # }
1.87 albertel 1235: if ($helplink ne 'nohelp') {
1236: $icons .= &Apache::loncommon::help_open_menu($color,$component,$component_help,$function,$faq,$bug);
1237: }
1.54 matthew 1238: if ($icons ne '') {
1239: $Str .= $icons.' ';
1.53 matthew 1240: }
1.54 matthew 1241: #
1.53 matthew 1242: $Str .= $links.'</font></td>';
1.54 matthew 1243: #
1.53 matthew 1244: if (defined($component)) {
1245: $Str .= '<td align="right" bgcolor="'.$color.'">'.
1.83 raeburn 1246: '<font size="+1">'.&mt($component).'</font></td>';
1.53 matthew 1247: }
1248: $Str .= '</tr></table>'."\n";
1249: #
1250: # Return the @Crumbs stack to what we started with
1251: push(@Crumbs,$last);
1252: shift(@Crumbs);
1253: #
1254: return $Str;
1255: }
1256:
1257: sub clear_breadcrumbs {
1258: undef(@Crumbs);
1259: }
1260:
1261: sub add_breadcrumb {
1262: push (@Crumbs,@_);
1263: }
1264:
1.57 matthew 1265: } # End of scope for @Crumbs
1.53 matthew 1266:
1267: ############################################################
1268: ############################################################
1269:
1.112 raeburn 1270: # Nested table routines.
1271: #
1272: # Routines to display form items in a multi-row table with 2 columns.
1273: # Uses nested tables to divide form elements into segments.
1274: # For examples of use see loncom/interface/lonnotify.pm
1275: #
1276: # Can be used in following order: ...
1277: # &start_pick_box()
1278: # row1
1279: # row2
1280: # row3 ... etc.
1281: # &submit_row(0
1282: # &end_pickbox()
1283: #
1284: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
1285: # &status_select_row and &email_default_row
1286: #
1287: # Can also be used in following order:
1288: #
1289: # &start_pick_box()
1290: # &row_title()
1291: # &row_closure()
1292: # &row_title()
1293: # &row_closure() ... etc.
1294: # &submit_row()
1295: # &end_pick_box()
1296: #
1297: # In general a &submit_row() call should proceed the call to &end_pick_box(),
1298: # as this routine adds a button for form submission.
1.113 raeburn 1299: # &submit_row() does not require a &row_closure after it.
1.112 raeburn 1300: #
1301: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
1302: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
1303: #
1304: # &row_title() adds a title in the left column for each segment.
1305: # &row_closure() closes a row with a 1-pixel wide black line.
1306: #
1307: # &role_select_row() provides a select box from which to choose 1 or more roles
1308: # &course_select_row provides ways of picking groups of courses
1309: # radio buttons: all, by category or by picking from a course picker pop-up
1310: # note: by category option is only displayed if a domain has implemented
1311: # selection by year, semester, department, number etc.
1312: #
1313: # &status_select_row() provides a select box from which to choose 1 or more
1314: # access types (current access, prior access, and future access)
1315: #
1316: # &email_default_row() provides text boxes for default e-mail suffixes for
1317: # different authentication types in a domain.
1318: #
1319: # &row_title() and &row_closure() are called internally by the &*_select_row
1320: # routines, but can also be called directly to start and end rows which have
1321: # needs that are not accommodated by the *_select_row() routines.
1322:
1323: sub start_pick_box {
1324: my ($table_width) = @_;
1325: my $output = <<"END";
1326: <table width="$table_width" border="0" cellpadding="0" cellspacing="1" bgcolor="#000000">
1327: <tr>
1328: <td>
1329: <table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#ffffff">
1330: <tr>
1331: <td>
1332: <table width="100%" border="0" cellpadding="0" cellspacing="1" bgcolor="#ffffff">
1333: END
1334: return $output;
1335: }
1336:
1337: sub end_pick_box {
1338: my $output = <<"END";
1339: </table>
1340: </td>
1341: </tr>
1342: </table>
1343: </td>
1344: </tr>
1345: </table>
1346: END
1347: return $output;
1348: }
1349:
1350: sub row_title {
1351: my ($col_width,$tablecolor,$title) = @_;
1352: my $output = <<"ENDONE";
1353: <tr>
1354: <td width="$col_width" bgcolor="$tablecolor">
1355: <table width="$col_width" border="0" cellpadding="8" cellspacing="0">
1356: <tr>
1357: <td align="right"><b>$title:</b>
1358: </td>
1359: </tr>
1360: </table>
1361: </td>
1362: <td width="100%" valign="top">
1363: <table width="100%" border="0" cellpadding="8" cellspacing="0">
1364: <tr>
1365: ENDONE
1366: return $output;
1367: }
1368:
1369: sub row_closure {
1.113 raeburn 1370: my $output = <<"ENDTWO";
1.112 raeburn 1371: </tr>
1372: </table>
1373: </td>
1374: </tr>
1375: <tr>
1376: <td width="100%" colspan="2" bgcolor="#000000">
1377: <img src="/adm/lonMisc/blackdot.gif" /><br />
1378: </td>
1379: </tr>
1380: ENDTWO
1381: return $output;
1382: }
1383:
1384: sub role_select_row {
1385: my ($roles,$col_width,$tablecolor,$title) = @_;
1.116 raeburn 1386: my $output;
1387: if (defined($title)) {
1388: $output = &row_title($col_width,$tablecolor,$title);
1389: }
1.119 raeburn 1390: $output .= qq| <td valign="top">
1.112 raeburn 1391: <select name="roles" multiple >\n|;
1.113 raeburn 1392: foreach my $role (@$roles) {
1.114 raeburn 1393: my $plrole;
1394: if ($role eq 'ow') {
1395: $plrole = &mt('Course Owner');
1396: } else {
1397: $plrole=&Apache::lonnet::plaintext($role);
1398: }
1.113 raeburn 1399: $output .= ' <option value="'.$role.'">'.$plrole.'</option>';
1.112 raeburn 1400: }
1401: $output .= qq| </select>
1402: </td>\n|;
1.116 raeburn 1403: if (defined($title)) {
1404: $output .= &row_closure();
1405: }
1.112 raeburn 1406: return $output;
1407: }
1408:
1409: sub course_select_row {
1410: my ($col_width,$tablecolor,$title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles) = @_;
1411: my $output = &row_title($col_width,$tablecolor,$title);
1412: $output .= " <td>\n";
1413: $output .= qq|
1414: <script type="text/javascript" language="Javascript" >
1415: function coursePick (formname) {
1416: for (var i=0; i<formname.coursepick.length; i++) {
1.114 raeburn 1417: if (formname.coursepick[i].value == 'category') {
1418: courseSet('');
1419: }
1.112 raeburn 1420: if (!formname.coursepick[i].checked) {
1421: if (formname.coursepick[i].value == 'specific') {
1422: formname.coursetotal.value = 0;
1423: formname.courselist = '';
1424: }
1425: }
1426: }
1427: }
1.114 raeburn 1428: function setPick (formname) {
1429: for (var i=0; i<formname.coursepick.length; i++) {
1430: if (formname.coursepick[i].value == 'category') {
1431: formname.coursepick[i].checked = true;
1432: }
1433: formname.coursetotal.value = 0;
1434: formname.courselist = '';
1435: }
1436: }
1.112 raeburn 1437: </script>
1438: |;
1439: my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1.118 raeburn 1440: ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
1.112 raeburn 1441: if ($totcodes > 0) {
1442: $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses');
1443: my $numtitles = @$codetitles;
1444: if ($numtitles > 0) {
1445: $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 />';
1446: $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1447: '<select name="'.$$codetitles[0].
1.114 raeburn 1448: '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1.112 raeburn 1449: ' <option value="-1" />Select'."\n";
1450: my @items = ();
1451: my @longitems = ();
1452: if ($$idlist{$$codetitles[0]} =~ /","/) {
1.113 raeburn 1453: @items = split(/","/,$$idlist{$$codetitles[0]});
1.112 raeburn 1454: } else {
1455: $items[0] = $$idlist{$$codetitles[0]};
1456: }
1457: if (defined($$idlist_titles{$$codetitles[0]})) {
1458: if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1.113 raeburn 1459: @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1.112 raeburn 1460: } else {
1461: $longitems[0] = $$idlist_titles{$$codetitles[0]};
1462: }
1463: for (my $i=0; $i<@longitems; $i++) {
1464: if ($longitems[$i] eq '') {
1465: $longitems[$i] = $items[$i];
1466: }
1467: }
1468: } else {
1469: @longitems = @items;
1470: }
1471: for (my $i=0; $i<@items; $i++) {
1472: $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
1473: }
1474: $output .= '</select></td>';
1475: for (my $i=1; $i<$numtitles; $i++) {
1476: $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1477: '<select name="'.$$codetitles[$i].
1478: '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1479: '<option value="-1"><-Pick '.$$codetitles[$i-1].'</option>'."\n".
1480: '</select>'."\n".
1481: '</td>';
1482: }
1483: $output .= '</tr></table><br />';
1484: }
1485: }
1.118 raeburn 1486: $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."'".','."'".'dccourse'."'".','."'".'dcdomain'."'".','."'".'coursedesc'."','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.' <input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br /></td>'."\n";
1.112 raeburn 1487: $output .= &row_closure();
1488: return $output;
1489: }
1490:
1491: sub status_select_row {
1492: my ($types,$col_width,$tablecolor,$title) = @_;
1.117 raeburn 1493: my $output;
1494: if (defined($title)) {
1495: $output = &row_title($col_width,$tablecolor,$title);
1496: }
1.119 raeburn 1497: $output .= qq| <td valign="top">
1.112 raeburn 1498: <select name="types" multiple>\n|;
1.113 raeburn 1499: foreach my $status_type (sort(keys(%{$types}))) {
1.112 raeburn 1500: $output .= ' <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
1501: }
1502: $output .= qq| </select>
1503: </td>\n|;
1.117 raeburn 1504: if (defined($title)) {
1505: $output .= &row_closure();
1506: }
1.112 raeburn 1507: return $output;
1508: }
1509:
1510: sub email_default_row {
1511: my ($authtypes,$col_width,$tablecolor,$title,$descrip) = @_;
1512: my $output = &row_title($col_width,$tablecolor,$title);
1513: my @rowcols = ('#eeeeee','#dddddd');
1.113 raeburn 1514: $output .= ' <td>'.$descrip;
1.115 albertel 1515: $output .= &start_pick_box('');
1.113 raeburn 1516: $output .= ' <tr bgcolor="'.$tablecolor.'">
1517: <td><b>'.&mt('Authentication Method').'</b></td><td align="right"><b>'.&mt('Username -> e-mail conversion').'</b></td>
1.112 raeburn 1518: </tr>'."\n";
1519: my $rownum = 0;
1.113 raeburn 1520: foreach my $auth (sort(keys(%{$authtypes}))) {
1.112 raeburn 1521: my ($userentry,$size);
1522: my $rowiter = $rownum%2;
1523: if ($auth =~ /^krb/) {
1524: $userentry = '';
1525: $size = 25;
1526: } else {
1527: $userentry = 'username@';
1528: $size = 15;
1529: }
1.113 raeburn 1530: $output .= '<tr bgcolor="'.$rowcols[$rowiter].'"><td> '.$$authtypes{$auth}.'</td><td align="right">'.$userentry.'<input type="text" name="'.$auth.'" size="'.$size.'" /></td></tr>';
1.112 raeburn 1531: $rownum ++;
1532: }
1.113 raeburn 1533: $output .= &end_pick_box();
1534: $output .= " <br /></td>\n";
1.112 raeburn 1535: $output .= &row_closure();
1536: return $output;
1537: }
1538:
1539:
1540: sub submit_row {
1541: my ($col_width,$tablecolor,$title,$cmd,$submit_text) = @_;
1.113 raeburn 1542: my $output = &row_title($col_width,$tablecolor,$title);
1.112 raeburn 1543: $output .= qq|
1544: <td width="100%" valign="top" align="right">
1545: <br />
1546: <input type="hidden" name="command" value="$cmd" />
1547: <input type="submit" value="$submit_text"/>
1548: <br /><br />
1549: </td>\n|;
1550: return $output;
1551: }
1.1 stredwic 1552:
1.119 raeburn 1553: ##############################################
1554: ##############################################
1555:
1556: # echo_form_input
1557: #
1558: # Generates html markup to add form elements from the referrer page
1559: # as hidden form elements (values encoded) in the new page.
1560: #
1561: # Intended to support two types of use
1562: # (a) to allow backing up to earlier pages in a multi-page
1563: # form submission process using a breadcrumb trail.
1564: #
1565: # (b) to allow the current page to be reloaded with form elements
1566: # set on previous page to remain unchanged. An example would
1567: # be where the a page containing a dynamically-built table of data is
1568: # is to be redisplayed, with only the sort order of the data changed.
1569: #
1570: # Inputs:
1571: # 1. Reference to array of form elements in the submitted form on
1572: # the referrer page which are to be excluded from the echoed elements.
1573: #
1574: # 2. Reference to array of regular expressions, which if matched in the
1575: # name of the form element n the referrer page will be omitted from echo.
1576: #
1577: # Outputs: A scalar containing the html markup for the echoed form
1578: # elements (all as hidden elements, with values encoded).
1579:
1580:
1581: sub echo_form_input {
1582: my ($excluded,$regexps) = @_;
1583: my $output = '';
1584: foreach my $key (keys(%env)) {
1585: if ($key =~ /^form\.(.+)$/) {
1586: my $name = $1;
1587: my $match = 0;
1588: if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
1589: if (defined($regexps)) {
1590: if (@{$regexps} > 0) {
1591: foreach my $regexp (@{$regexps}) {
1592: if ($name =~ /\Q$regexp\E/) {
1593: $match = 1;
1594: last;
1595: }
1596: }
1597: }
1598: }
1599: if (!$match) {
1600: if (ref($env{$key})) {
1601: foreach my $value (@{$env{$key}}) {
1602: $value = &HTML::Entities::encode($value,'<>&"');
1603: $output .= '<input type="hidden" name="'.$name.
1604: '" value="'.$value.'" />'."\n";
1605: }
1606: } else {
1607: my $value = &HTML::Entities::encode($env{$key},'<>&"');
1608: $output .= '<input type="hidden" name="'.$name.
1609: '" value="'.$value.'" />'."\n";
1610: }
1611: }
1612: }
1613: }
1614: }
1615: return $output;
1616: }
1617:
1618: ##############################################
1619: ##############################################
1620:
1621: # set_form_elements
1622: #
1623: # Generates javascript to set form elements to values based on
1624: # corresponding values for the same form elements when the page was
1625: # previously submitted.
1626: #
1627: # Last submission values are read from hidden form elements in referring
1628: # page which have the same name, i.e., generated by &echo_form_input().
1629: #
1630: # Intended to be called by onload event.
1631: #
1.121 raeburn 1632: # Inputs:
1633: # (a) Reference to hash of echoed form elements to be set.
1.119 raeburn 1634: #
1635: # In the hash, keys are the form element names, and the values are the
1636: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
1637: # hidden).
1.121 raeburn 1638: #
1639: # (b) Optional reference to hash of stored elements to be set.
1640: #
1641: # If the page being displayed is a page which permits modification of
1642: # previously stored data, e.g., the first page in a multi-page submission,
1643: # then if stored is supplied, form elements will be set to the last stored
1644: # values. If user supplied values are also available for the same elements
1645: # these will replace the stored values.
1646: #
1.119 raeburn 1647: # Output:
1648: #
1649: # javascript function - set_form_elements() which sets form elements,
1650: # expects an argument: formname - the name of the form according to
1651: # the DOM, e.g., document.compose
1652:
1653: sub set_form_elements {
1.121 raeburn 1654: my ($elements,$stored) = @_;
1655: my %values;
1.119 raeburn 1656: my $output .= 'function setFormElements(courseForm) {
1.121 raeburn 1657: ';
1658: if (defined($stored)) {
1659: foreach my $name (keys(%{$stored})) {
1660: if (exists($$elements{$name})) {
1661: if (ref($$stored{$name}) eq 'ARRAY') {
1662: $values{$name} = $$stored{$name};
1663: } else {
1664: @{$values{$name}} = ($$stored{$name});
1665: }
1666: }
1667: }
1668: }
1669:
1.119 raeburn 1670: foreach my $key (keys(%env)) {
1671: if ($key =~ /^form\.(.+)$/) {
1672: my $name = $1;
1673: if (exists($$elements{$name})) {
1.121 raeburn 1674: @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
1675: }
1676: }
1677: }
1678:
1679: foreach my $name (keys(%values)) {
1680: for (my $i=0; $i<@{$values{$name}}; $i++) {
1681: $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
1682: $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
1683: $values{$name}[$i] =~ s/"/\\"/g;
1684: }
1685: if ($$elements{$name} eq 'text') {
1686: my $numvalues = @{$values{$name}};
1687: if ($numvalues > 1) {
1688: my $valuestring = join('","',@{$values{$name}});
1689: $output .= qq|
1.119 raeburn 1690: var textvalues = new Array ("$valuestring");
1691: var total = courseForm.$name.length;
1692: if (total > $numvalues) {
1693: total = $numvalues;
1694: }
1695: for (var i=0; i<total; i++) {
1696: courseForm.$name\[i].value = textvalues[i];
1697: }
1698: |;
1.121 raeburn 1699: } else {
1700: $output .= qq|
1701: courseForm.$name.value = "$values{$name}[0]";
1.119 raeburn 1702: |;
1.121 raeburn 1703: }
1704: } else {
1705: $output .= qq|
1.119 raeburn 1706: var elementLength = courseForm.$name.length;
1707: if (elementLength==undefined) {
1708: |;
1.121 raeburn 1709: foreach my $value (@{$values{$name}}) {
1710: if ($$elements{$name} eq 'selectbox') {
1711: $output .= qq|
1.119 raeburn 1712: if (courseForm.$name.options[0].value == "$value") {
1713: courseForm.$name.options[0].selected = true;
1714: }|;
1.121 raeburn 1715: } elsif (($$elements{$name} eq 'radio') ||
1716: ($$elements{$name} eq 'checkbox')) {
1717: $output .= qq|
1.119 raeburn 1718: if (courseForm.$name.value == "$value") {
1719: courseForm.$name.checked = true;
1720: }|;
1.121 raeburn 1721: }
1722: }
1723: $output .= qq|
1.119 raeburn 1724: }
1725: else {
1726: for (var i=0; i<courseForm.$name.length; i++) {
1727: |;
1.121 raeburn 1728: if ($$elements{$name} eq 'selectbox') {
1729: $output .= qq|
1.119 raeburn 1730: courseForm.$name.options[i].selected = false;|;
1.121 raeburn 1731: } elsif (($$elements{$name} eq 'radio') ||
1732: ($$elements{$name} eq 'checkbox')) {
1733: $output .= qq|
1.119 raeburn 1734: courseForm.$name\[i].checked = false;|;
1.121 raeburn 1735: }
1736: $output .= qq|
1.119 raeburn 1737: }
1738: for (var j=0; j<courseForm.$name.length; j++) {
1739: |;
1.121 raeburn 1740: foreach my $value (@{$values{$name}}) {
1741: if ($$elements{$name} eq 'selectbox') {
1742: $output .= qq|
1.119 raeburn 1743: if (courseForm.$name.options[j].value == "$value") {
1744: courseForm.$name.options[j].selected = true;
1745: }|;
1.121 raeburn 1746: } elsif (($$elements{$name} eq 'radio') ||
1747: ($$elements{$name} eq 'checkbox')) {
1748: $output .= qq|
1.119 raeburn 1749: if (courseForm.$name\[j].value == "$value") {
1750: courseForm.$name\[j].checked = true;
1751: }|;
1.121 raeburn 1752: }
1753: }
1754: $output .= qq|
1.119 raeburn 1755: }
1756: }
1757: |;
1758: }
1759: }
1760: $output .= "
1761: }\n";
1762: return $output;
1763: }
1764:
1.1 stredwic 1765: 1;
1.23 matthew 1766:
1.1 stredwic 1767: __END__
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