1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.66 2004/04/19 16:43:03 matthew Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ######################################################################
29: ######################################################################
30:
31: =pod
32:
33: =head1 NAME
34:
35: Apache::lonhtmlcommon - routines to do common html things
36:
37: =head1 SYNOPSIS
38:
39: Referenced by other mod_perl Apache modules.
40:
41: =head1 INTRODUCTION
42:
43: lonhtmlcommon is a collection of subroutines used to present information
44: in a consistent html format, or provide other functionality related to
45: html.
46:
47: =head2 General Subroutines
48:
49: =over 4
50:
51: =cut
52:
53: ######################################################################
54: ######################################################################
55:
56: package Apache::lonhtmlcommon;
57:
58: use Time::Local;
59: use Time::HiRes;
60: use Apache::lonlocal;
61: use strict;
62:
63: ##############################################
64: ##############################################
65:
66: =pod
67:
68: =item authorbombs
69:
70: =cut
71:
72: ##############################################
73: ##############################################
74:
75: sub authorbombs {
76: my $url=shift;
77: $url=&Apache::lonnet::declutter($url);
78: my ($udom,$uname)=($url=~/^(\w+)\/(\w+)\//);
79: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
80: foreach (keys %bombs) {
81: if ($_=~/^$udom\/$uname\//) {
82: return '<a href="/adm/bombs/'.$url.
83: '"><img src="/adm/lonMisc/bomb.gif" border="0" /></a>'.
84: &Apache::loncommon::help_open_topic('About_Bombs');
85: }
86: }
87: return '';
88: }
89:
90: ##############################################
91: ##############################################
92:
93: sub recent_filename {
94: my $area=shift;
95: return 'nohist_recent_'.&Apache::lonnet::escape($area);
96: }
97:
98: sub store_recent {
99: my ($area,$name,$value)=@_;
100: my $file=&recent_filename($area);
101: my %recent=&Apache::lonnet::dump($file);
102: if (scalar(keys(%recent))>10) {
103: # remove oldest value
104: my $oldest=time;
105: my $delkey='';
106: foreach (keys %recent) {
107: my $thistime=(split(/\&/,$recent{$_}))[0];
108: if ($thistime<$oldest) {
109: $oldest=$thistime;
110: $delkey=$_;
111: }
112: }
113: &Apache::lonnet::del($file,[$delkey]);
114: }
115: # store new value
116: &Apache::lonnet::put($file,{ $name =>
117: time.'&'.&Apache::lonnet::escape($value) });
118: }
119:
120: sub select_recent {
121: my ($area,$fieldname,$event)=@_;
122: my %recent=&Apache::lonnet::dump(&recent_filename($area));
123: my $return="\n<select name='$fieldname'".
124: ($event?" onChange='$event'":'').
125: ">\n<option value=''>--- ".&mt('Recent')." ---</option>";
126: foreach (sort keys %recent) {
127: unless ($_=~/^error\:/) {
128: $return.="\n<option value='$_'>".
129: &Apache::lonnet::unescape((split(/\&/,$recent{$_}))[1]).
130: '</option>';
131: }
132: }
133: $return.="\n</select>\n";
134: return $return;
135: }
136:
137:
138: =pod
139:
140: =item textbox
141:
142: =cut
143:
144: ##############################################
145: ##############################################
146: sub textbox {
147: my ($name,$value,$size,$special) = @_;
148: $size = 40 if (! defined($size));
149: my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
150: 'value="'.$value.'" '.$special.' />';
151: return $Str;
152: }
153:
154: ##############################################
155: ##############################################
156:
157: =pod
158:
159: =item checkbox
160:
161: =cut
162:
163: ##############################################
164: ##############################################
165: sub checkbox {
166: my ($name,$value) = @_;
167: my $Str = '<input type="checkbox" name="'.$name.'"'.
168: ($value?' checked="1"':'').' />';
169: return $Str;
170: }
171:
172: ##############################################
173: ##############################################
174:
175: =pod
176:
177: =item &date_setter
178:
179: &date_setter returns html and javascript for a compact date-setting form.
180: To retrieve values from it, use &get_date_from_form().
181:
182: Inputs
183:
184: =over 4
185:
186: =item $dname
187:
188: The name to prepend to the form elements.
189: The form elements defined will be dname_year, dname_month, dname_day,
190: dname_hour, dname_min, and dname_sec.
191:
192: =item $currentvalue
193:
194: The current setting for this time parameter. A unix format time
195: (time in seconds since the beginning of Jan 1st, 1970, GMT.
196: An undefined value is taken to indicate the value is the current time.
197: Also, to be explicit, a value of 'now' also indicates the current time.
198:
199: =item $special
200:
201: Additional html/javascript to be associated with each element in
202: the date_setter. See lonparmset for example usage.
203:
204: =item $includeempty
205:
206: =item $state
207:
208: Specifies the initial state of the form elements. Either 'disabled' or empty.
209: Defaults to empty, which indiciates the form elements are not disabled.
210:
211: =back
212:
213: Bugs
214:
215: The method used to restrict user input will fail in the year 2400.
216:
217: =cut
218:
219: ##############################################
220: ##############################################
221: sub date_setter {
222: my ($formname,$dname,$currentvalue,$special,$includeempty,$state) = @_;
223: if (! defined($state) || $state ne 'disabled') {
224: $state = '';
225: }
226: if (! defined($currentvalue) || $currentvalue eq 'now') {
227: unless ($includeempty) {
228: $currentvalue = time;
229: } else {
230: $currentvalue = 0;
231: }
232: }
233: # other potentially useful values: wkday,yrday,is_daylight_savings
234: my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
235: if ($currentvalue) {
236: ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) =
237: localtime($currentvalue);
238: $year += 1900;
239: }
240: my $result = "\n<!-- $dname date setting form -->\n";
241: $result .= <<ENDJS;
242: <script language="Javascript">
243: function $dname\_checkday() {
244: var day = document.$formname.$dname\_day.value;
245: var month = document.$formname.$dname\_month.value;
246: var year = document.$formname.$dname\_year.value;
247: var valid = true;
248: if (day < 1) {
249: document.$formname.$dname\_day.value = 1;
250: }
251: if (day > 31) {
252: document.$formname.$dname\_day.value = 31;
253: }
254: if ((month == 1) || (month == 3) || (month == 5) ||
255: (month == 7) || (month == 8) || (month == 10) ||
256: (month == 12)) {
257: if (day > 31) {
258: document.$formname.$dname\_day.value = 31;
259: day = 31;
260: }
261: } else if (month == 2 ) {
262: if ((year % 4 == 0) && (year % 100 != 0)) {
263: if (day > 29) {
264: document.$formname.$dname\_day.value = 29;
265: }
266: } else if (day > 29) {
267: document.$formname.$dname\_day.value = 28;
268: }
269: } else if (day > 30) {
270: document.$formname.$dname\_day.value = 30;
271: }
272: }
273:
274: function $dname\_disable() {
275: document.$formname.$dname\_month.disabled=true;
276: document.$formname.$dname\_day.disabled=true;
277: document.$formname.$dname\_year.disabled=true;
278: document.$formname.$dname\_hour.disabled=true;
279: document.$formname.$dname\_minute.disabled=true;
280: document.$formname.$dname\_second.disabled=true;
281: }
282:
283: function $dname\_enable() {
284: document.$formname.$dname\_month.disabled=false;
285: document.$formname.$dname\_day.disabled=false;
286: document.$formname.$dname\_year.disabled=false;
287: document.$formname.$dname\_hour.disabled=false;
288: document.$formname.$dname\_minute.disabled=false;
289: document.$formname.$dname\_second.disabled=false;
290: }
291:
292: function $dname\_opencalendar() {
293: if (! document.$formname.$dname\_month.disabled) {
294: var calwin=window.open(
295: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
296: document.$formname.$dname\_month.value+"&year="+
297: document.$formname.$dname\_year.value,
298: "LONCAPAcal",
299: "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
300: }
301:
302: }
303: </script>
304: ENDJS
305: $result .= " <nobr><select name=\"$dname\_month\" ".$special.' '.
306: $state.' '.
307: "onChange=\"javascript:$dname\_checkday()\" >\n";
308: my @Months = qw/January February March April May June
309: July August September October November December/;
310: # Pad @Months with a bogus value to make indexing easier
311: unshift(@Months,'If you can read this an error occurred');
312: if ($includeempty) { $result.="<option value=''></option>"; }
313: for(my $m = 1;$m <=$#Months;$m++) {
314: $result .= " <option value=\"$m\" ";
315: $result .= "selected " if ($m-1 eq $month);
316: $result .= "> ".&mt($Months[$m])." </option>\n";
317: }
318: $result .= " </select>\n";
319: $result .= " <input type=\"text\" name=\"$dname\_day\" ".$state.' '.
320: "value=\"$mday\" size=\"3\" ".$special.' '.
321: "onChange=\"javascript:$dname\_checkday()\" />\n";
322: $result .= " <input type=\"year\" name=\"$dname\_year\" ".$state.' '.
323: "value=\"$year\" size=\"5\" ".$special.' '.
324: "onChange=\"javascript:$dname\_checkday()\" />\n";
325: $result .= " ";
326: $result .= " <select name=\"$dname\_hour\" ".$special." ".$state.' '.">\n";
327: if ($includeempty) { $result.="<option value=''></option>"; }
328: for (my $h = 0;$h<24;$h++) {
329: $result .= " <option value=\"$h\" ";
330: $result .= "selected " if (defined($hour) && $hour == $h);
331: $result .= "> ";
332: my $timest='';
333: if ($h == 0) {
334: $timest .= "12 am";
335: } elsif($h == 12) {
336: $timest .= "12 noon";
337: } elsif($h < 12) {
338: $timest .= "$h am";
339: } else {
340: $timest .= $h-12 ." pm";
341: }
342: $timest=&mt($timest);
343: $result .= $timest." </option>\n";
344: }
345: $result .= " </select>\n";
346: $result .= " <input type=\"text\" name=\"$dname\_minute\" ".$special.' '.
347: $state.' '.
348: "value=\"$min\" size=\"3\" /> m\n";
349: $result .= " <input type=\"text\" name=\"$dname\_second\" ".$special.' '.
350: $state.' '.
351: "value=\"$sec\" size=\"3\" /> s\n";
352: $result .= "<a href=\"javascript:$dname\_opencalendar()\">".
353: &mt('Select Date')."</a></nobr>\n<!-- end $dname date setting form -->\n";
354: return $result;
355: }
356:
357: ##############################################
358: ##############################################
359:
360: =pod
361:
362: =item &get_date_from_form
363:
364: get_date_from_form retrieves the date specified in an &date_setter form.
365:
366: Inputs:
367:
368: =over 4
369:
370: =item $dname
371:
372: The name passed to &datesetter, which prefixes the form elements.
373:
374: =item $defaulttime
375:
376: The unix time to use as the default in case of poor inputs.
377:
378: =back
379:
380: Returns: Unix time represented in the form.
381:
382: =cut
383:
384: ##############################################
385: ##############################################
386: sub get_date_from_form {
387: my ($dname) = @_;
388: my ($sec,$min,$hour,$day,$month,$year);
389: #
390: if (defined($ENV{'form.'.$dname.'_second'})) {
391: my $tmpsec = $ENV{'form.'.$dname.'_second'};
392: if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
393: $sec = $tmpsec;
394: }
395: if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
396: }
397: if (defined($ENV{'form.'.$dname.'_minute'})) {
398: my $tmpmin = $ENV{'form.'.$dname.'_minute'};
399: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
400: $min = $tmpmin;
401: }
402: if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
403: }
404: if (defined($ENV{'form.'.$dname.'_hour'})) {
405: my $tmphour = $ENV{'form.'.$dname.'_hour'};
406: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
407: $hour = $tmphour;
408: }
409: }
410: if (defined($ENV{'form.'.$dname.'_day'})) {
411: my $tmpday = $ENV{'form.'.$dname.'_day'};
412: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
413: $day = $tmpday;
414: }
415: }
416: if (defined($ENV{'form.'.$dname.'_month'})) {
417: my $tmpmonth = $ENV{'form.'.$dname.'_month'};
418: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
419: $month = $tmpmonth - 1;
420: }
421: }
422: if (defined($ENV{'form.'.$dname.'_year'})) {
423: my $tmpyear = $ENV{'form.'.$dname.'_year'};
424: if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
425: $year = $tmpyear - 1900;
426: }
427: }
428: if (($year<70) || ($year>137)) { return undef; }
429: if (defined($sec) && defined($min) && defined($hour) &&
430: defined($day) && defined($month) && defined($year) &&
431: eval(&timelocal($sec,$min,$hour,$day,$month,$year))) {
432: return &timelocal($sec,$min,$hour,$day,$month,$year);
433: } else {
434: return undef;
435: }
436: }
437:
438: ##############################################
439: ##############################################
440:
441: =pod
442:
443: =item &pjump_javascript_definition()
444:
445: Returns javascript defining the 'pjump' function, which opens up a
446: parameter setting wizard.
447:
448: =cut
449:
450: ##############################################
451: ##############################################
452: sub pjump_javascript_definition {
453: my $Str = <<END;
454: function pjump(type,dis,value,marker,ret,call) {
455: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
456: +"&value="+escape(value)+"&marker="+escape(marker)
457: +"&return="+escape(ret)
458: +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
459: "height=350,width=350,scrollbars=no,menubar=no");
460: }
461: END
462: return $Str;
463: }
464:
465: ##############################################
466: ##############################################
467:
468: =pod
469:
470: =item &javascript_nothing()
471:
472: Return an appropriate null for the users browser. This is used
473: as the first arguement for window.open calls when you want a blank
474: window that you can then write to.
475:
476: =cut
477:
478: ##############################################
479: ##############################################
480: sub javascript_nothing {
481: # mozilla and other browsers work with "''", but IE on mac does not.
482: my $nothing = "''";
483: my $user_browser;
484: my $user_os;
485: $user_browser = $ENV{'browser.type'} if (exists($ENV{'browser.type'}));
486: $user_os = $ENV{'browser.os'} if (exists($ENV{'browser.os'}));
487: if (! defined($user_browser) || ! defined($user_os)) {
488: (undef,$user_browser,undef,undef,undef,$user_os) =
489: &Apache::loncommon::decode_user_agent();
490: }
491: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
492: $nothing = "'javascript:void(0);'";
493: }
494: return $nothing;
495: }
496:
497:
498: ##############################################
499: ##############################################
500:
501: =pod
502:
503: =item &StatusOptions()
504:
505: Returns html for a selection box which allows the user to choose the
506: enrollment status of students. The selection box name is 'Status'.
507:
508: Inputs:
509:
510: $status: the currently selected status. If undefined the value of
511: $ENV{'form.Status'} is taken. If that is undefined, a value of 'Active'
512: is used.
513:
514: $formname: The name of the form. If defined the onchange attribute of
515: the selection box is set to document.$formname.submit().
516:
517: $size: the size (number of lines) of the selection box.
518:
519: $onchange: javascript to use when the value is changed. Enclosed in
520: double quotes, ""s, not single quotes.
521:
522: Returns: a perl string as described.
523:
524: =cut
525:
526: ##############################################
527: ##############################################
528: sub StatusOptions {
529: my ($status, $formName,$size,$onchange)=@_;
530: $size = 1 if (!defined($size));
531: if (! defined($status)) {
532: $status = 'Active';
533: $status = $ENV{'form.Status'} if (exists($ENV{'form.Status'}));
534: }
535:
536: my $OpSel1 = '';
537: my $OpSel2 = '';
538: my $OpSel3 = '';
539:
540: if($status eq 'Any') { $OpSel3 = ' selected'; }
541: elsif($status eq 'Expired' ) { $OpSel2 = ' selected'; }
542: else { $OpSel1 = ' selected'; }
543:
544: my $Str = '';
545: $Str .= '<select name="Status"';
546: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
547: $Str .= ' onchange="document.'.$formName.'.submit()"';
548: }
549: if (defined($onchange)) {
550: $Str .= ' onchange="'.$onchange.'"';
551: }
552: $Str .= ' size="'.$size.'" ';
553: $Str .= '>'."\n";
554: $Str .= '<option value="Active" '.$OpSel1.'>'.
555: &mt('Currently Enrolled').'</option>'."\n";
556: $Str .= '<option value="Expired" '.$OpSel2.'>'.
557: &mt('Previously Enrolled').'</option>'."\n";
558: $Str .= '<option value="Any" '.$OpSel3.'>'.
559: &mt('Any Enrollment Status').'</option>'."\n";
560: $Str .= '</select>'."\n";
561: }
562:
563: ########################################################
564: ########################################################
565:
566: =pod
567:
568: =item Progess Window Handling Routines
569:
570: These routines handle the creation, update, increment, and closure of
571: progress windows. The progress window reports to the user the number
572: of items completed and an estimate of the time required to complete the rest.
573:
574: =over 4
575:
576:
577: =item &Create_PrgWin
578:
579: Writes javascript to the client to open a progress window and returns a
580: data structure used for bookkeeping.
581:
582: Inputs
583:
584: =over 4
585:
586: =item $r Apache request
587:
588: =item $title The title of the progress window
589:
590: =item $heading A description (usually 1 line) of the process being initiated.
591:
592: =item $number_to_do The total number of items being processed.
593:
594: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
595: specified)
596:
597: =item $width Specify the width in charaters of the input field.
598:
599: =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
600:
601: =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
602:
603: =back
604:
605: Returns a hash containing the progress state data structure.
606:
607:
608: =item &Update_PrgWin
609:
610: Updates the text in the progress indicator. Does not increment the count.
611: See &Increment_PrgWin.
612:
613: Inputs:
614:
615: =over 4
616:
617: =item $r Apache request
618:
619: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
620:
621: =item $displaystring The string to write to the status indicator
622:
623: =back
624:
625: Returns: none
626:
627:
628: =item Increment_PrgWin
629:
630: Increment the count of items completed for the progress window by 1.
631:
632: Inputs:
633:
634: =over 4
635:
636: =item $r Apache request
637:
638: =item $prog_state Pointer to the data structure returned by Create_PrgWin
639:
640: =item $extraInfo A description of the items being iterated over. Typically
641: 'student'.
642:
643: =back
644:
645: Returns: none
646:
647:
648: =item Close_PrgWin
649:
650: Closes the progress window.
651:
652: Inputs:
653:
654: =over 4
655:
656: =item $r Apache request
657:
658: =item $prog_state Pointer to the data structure returned by Create_PrgWin
659:
660: =back
661:
662: Returns: none
663:
664: =back
665:
666: =cut
667:
668: ########################################################
669: ########################################################
670:
671: my $uniq=0;
672: sub get_uniq_name {
673: $uniq++;
674: return 'uniquename'.$uniq;
675: }
676:
677: # Create progress
678: sub Create_PrgWin {
679: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
680: $inputname)=@_;
681: if (!defined($type)) { $type='popup'; }
682: if (!defined($width)) { $width=55; }
683: my %prog_state;
684: $prog_state{'type'}=$type;
685: if ($type eq 'popup') {
686: $prog_state{'window'}='popwin';
687: #the whole function called through timeout is due to issues
688: #in mozilla Read BUG #2665 if you want to know the whole story
689: &r_print($r,'<script>'.
690: "var popwin;
691: function openpopwin () {
692: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
693: "popwin.document.writeln(\'<html><head><title>$title</title></head>".
694: "<body bgcolor=\"#88DDFF\">".
695: "<h4>$heading</h4>".
696: "<form name=popremain>".
697: '<input type="text" size="'.$width.'" name="remaining" value="'.
698: &mt('Starting').'"></form>'.
699: "</body></html>\');".
700: "popwin.document.close();}".
701: "\nwindow.setTimeout(openpopwin,0)</script>");
702: $prog_state{'formname'}='popremain';
703: $prog_state{'inputname'}="remaining";
704: } elsif ($type eq 'inline') {
705: $prog_state{'window'}='window';
706: if (!$formname) {
707: $prog_state{'formname'}=&get_uniq_name();
708: &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
709: } else {
710: $prog_state{'formname'}=$formname;
711: }
712: if (!$inputname) {
713: $prog_state{'inputname'}=&get_uniq_name();
714: &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
715: '" size="'.$width.'" />');
716: } else {
717: $prog_state{'inputname'}=$inputname;
718:
719: }
720: if (!$formname) { &r_print($r,'</form>'); }
721: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
722: }
723:
724: $prog_state{'done'}=0;
725: $prog_state{'firststart'}=&Time::HiRes::time();
726: $prog_state{'laststart'}=&Time::HiRes::time();
727: $prog_state{'max'}=$number_to_do;
728:
729: return %prog_state;
730: }
731:
732: # update progress
733: sub Update_PrgWin {
734: my ($r,$prog_state,$displayString)=@_;
735: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
736: $$prog_state{'formname'}.'.'.
737: $$prog_state{'inputname'}.'.value="'.
738: $displayString.'";</script>');
739: $$prog_state{'laststart'}=&Time::HiRes::time();
740: }
741:
742: # increment progress state
743: sub Increment_PrgWin {
744: my ($r,$prog_state,$extraInfo)=@_;
745: $$prog_state{'done'}++;
746: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
747: $$prog_state{'done'} *
748: ($$prog_state{'max'}-$$prog_state{'done'});
749: $time_est = int($time_est);
750: if (int ($time_est/60) > 0) {
751: my $min = int($time_est/60);
752: my $sec = $time_est % 60;
753: $time_est = $min.' '.&mt('minutes');
754: if ($min < 10) {
755: if ($sec > 1) {
756: $time_est.= ', '.$sec.' '.&mt('seconds');
757: } elsif ($sec > 0) {
758: $time_est.= ', '.$sec.' '.&mt('second');
759: }
760: }
761: } else {
762: $time_est .= ' '.&mt('seconds');
763: }
764: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
765: if ($lasttime > 9) {
766: $lasttime = int($lasttime);
767: } elsif ($lasttime < 0.01) {
768: $lasttime = 0;
769: } else {
770: $lasttime = sprintf("%3.2f",$lasttime);
771: }
772: if ($lasttime == 1) {
773: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
774: } else {
775: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
776: }
777: #
778: my $user_browser = $ENV{'browser.type'} if (exists($ENV{'browser.type'}));
779: my $user_os = $ENV{'browser.os'} if (exists($ENV{'browser.os'}));
780: if (! defined($user_browser) || ! defined($user_os)) {
781: (undef,$user_browser,undef,undef,undef,$user_os) =
782: &Apache::loncommon::decode_user_agent();
783: }
784: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
785: $lasttime = '';
786: }
787: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
788: $$prog_state{'formname'}.'.'.
789: $$prog_state{'inputname'}.'.value="'.
790: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
791: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
792: $$prog_state{'laststart'}=&Time::HiRes::time();
793: }
794:
795: # close Progress Line
796: sub Close_PrgWin {
797: my ($r,$prog_state)=@_;
798: if ($$prog_state{'type'} eq 'popup') {
799: &r_print($r,'<script>popwin.close()</script>'."\n");
800: } elsif ($$prog_state{'type'} eq 'inline') {
801: &Update_PrgWin($r,$prog_state,&mt('Done'));
802: }
803: undef(%$prog_state);
804: }
805:
806: sub r_print {
807: my ($r,$to_print)=@_;
808: if ($r) {
809: $r->print($to_print);
810: $r->rflush();
811: } else {
812: print($to_print);
813: }
814: }
815:
816: # ------------------------------------------------------- Puts directory header
817:
818: sub crumbs {
819: my ($uri,$target,$prefix,$form,$size)=@_;
820: if (! defined($size)) {
821: $size = '+2';
822: }
823: my $output='<br /><tt><b><font size="'.$size.'">'.$prefix.'/';
824: if ($ENV{'user.adv'}) {
825: my $path=$prefix.'/';
826: foreach (split('/',$uri)) {
827: unless ($_) { next; }
828: $path.=$_;
829: unless ($path eq $uri) { $path.='/'; }
830: my $linkpath=$path;
831: if ($form) {
832: $linkpath="javascript:$form.action='$path';$form.submit();";
833: }
834: $output.='<a href="'.$linkpath.'"'.($target?' target="'.$target.'"':'').'>'.$_.'</a>/';
835: }
836: } else {
837: $output.=$uri;
838: }
839: unless ($uri=~/\/$/) { $output=~s/\/$//; }
840: return $output.'</font></b></tt><br />';
841: }
842:
843: # ------------------------------------------------- Output headers for HTMLArea
844:
845: sub htmlareaheaders {
846: unless (&htmlareablocked()) { return ''; }
847: my $lang='en';
848: return (<<ENDHEADERS);
849: <script type="text/javascript">
850: _editor_url="/htmlarea/";
851: </script>
852: <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
853: <script type="text/javascript" src="/htmlarea/lang/$lang.js"></script>
854: <script type="text/javascript" src="/htmlarea/dialog.js"></script>
855: <style type="text/css">
856: \@import url(/htmlarea/htmlarea.css);
857: </style>
858: ENDHEADERS
859: }
860:
861: # ---------------------------------------------------------- Script to activate
862:
863: sub htmlareaactive {
864: unless (&htmlareablocked()) { return ''; }
865: return (<<ENDSCRIPT);
866: <script type="text/javascript" defer="1">
867: HTMLArea.replaceAll();
868: </script>
869: ENDSCRIPT
870: }
871:
872: # --------------------------------------------------------------------- Blocked
873:
874: sub htmlareablocked {
875: unless (&htmlareabrowser()) { return ''; }
876: return 1;
877: }
878:
879: # ---------------------------------------- Browser capable of running HTMLArea?
880:
881: sub htmlareabrowser {
882: return 1;
883: }
884:
885: ############################################################
886: ############################################################
887:
888: =pod
889:
890: =item breadcrumbs
891:
892: Compiles the previously registered breadcrumbs into an series of links.
893: FAQ and BUG links will be placed on the left side of the table if they
894: are defined for the last registered breadcrumb.
895: Additionally supports a 'component', which will be displayed on the
896: right side of the table (without a link).
897: A link to help for the component will be included if one is specified.
898:
899: All inputs can be undef without problems.
900:
901: Inputs: $color (the background color of the table returned),
902: $component (the large text on the right side of the table),
903: $component_help
904: $function (role to get colors from)
905: $domain (domian of role)
906: $menulink (boolean, controls whether to include a link to /adm/menu)
907:
908: Returns a string containing breadcrumbs for the current page.
909:
910: =item clear_breadcrumbs
911:
912: Clears the previously stored breadcrumbs.
913:
914: =item add_breadcrumb
915:
916: Pushes a breadcrumb on the stack of crumbs.
917:
918: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
919: are required. If present the keys 'faq' and 'bug' will be used to provide
920: links to the FAQ and bug sites.
921:
922: returns: nothing
923:
924: =cut
925:
926: ############################################################
927: ############################################################
928: {
929: my @Crumbs;
930:
931: sub breadcrumbs {
932: my ($color,$component,$component_help,$function,$domain,$menulink) =
933: @_;
934: if (! defined($color)) {
935: if (! defined($function)) {
936: $function = &Apache::loncommon::get_users_function();
937: }
938: $color = &Apache::loncommon::designparm($function.'.tabbg',
939: $domain);
940: }
941: #
942: my $Str = "\n".
943: '<table width="100%" border="0" cellpadding="0" cellspacing="0">'.
944: '<tr><td bgcolor="'.$color.'">'.
945: '<font size="-1">';
946: #
947: # Make the faq and bug data cascade
948: my $faq = '';
949: my $bug = '';
950: # The last breadcrumb does not have a link, so handle it separately.
951: my $last = pop(@Crumbs);
952: #
953: # The first one should be the course, I guess.
954: if (!defined($menulink)) { $menulink=1; }
955: if ($menulink && exists($ENV{'request.course.id'}) && $ENV{'request.course.id'} ne '') {
956: my $cid = $ENV{'request.course.id'};
957: unshift(@Crumbs,{
958: href=>'/adm/menu',
959: title=>'Go to main menu',
960: text=>$ENV{'course.'.$cid.'.description'},
961: });
962: }
963: my $links .=
964: join('->',
965: map {
966: $faq = $_->{'faq'} if (exists($_->{'faq'}));
967: $bug = $_->{'bug'} if (exists($_->{'bug'}));
968: '<a href="'.$_->{'href'}.'" title="'.&mt($_->{'title'}).'">'.
969: &mt($_->{'text'}).'</a>'
970: } @Crumbs
971: );
972: $links .= '->' if ($links ne '');
973: $links .= '<b>'.$last->{'text'}.'</b>';
974: #
975: my $icons = '';
976: $faq = $last->{'faq'} if (exists($last->{'faq'}));
977: $bug = $last->{'bug'} if (exists($last->{'bug'}));
978: if ($faq ne '') {
979: $icons .= &Apache::loncommon::help_open_faq($faq);
980: }
981: if ($bug ne '') {
982: $icons .= &Apache::loncommon::help_open_bug($bug);
983: }
984: if ($icons ne '') {
985: $Str .= $icons.' ';
986: }
987: #
988: $Str .= $links.'</font></td>';
989: #
990: if (defined($component)) {
991: $Str .= '<td align="right" bgcolor="'.$color.'">'.
992: '<font size="+1">'.&mt($component).'</font>';
993: if (defined($component_help)) {
994: $Str .=
995: &Apache::loncommon::help_open_topic($component_help);
996: }
997: $Str.= '</td>';
998: }
999: $Str .= '</tr></table>'."\n";
1000: #
1001: # Return the @Crumbs stack to what we started with
1002: push(@Crumbs,$last);
1003: shift(@Crumbs);
1004: #
1005: return $Str;
1006: }
1007:
1008: sub clear_breadcrumbs {
1009: undef(@Crumbs);
1010: }
1011:
1012: sub add_breadcrumb {
1013: push (@Crumbs,@_);
1014: }
1015:
1016: } # End of scope for @Crumbs
1017:
1018: ############################################################
1019: ############################################################
1020:
1021:
1022: 1;
1023:
1024: __END__
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