1: # The LearningOnline Network with CAPA
2: # a pile of common html routines
3: #
4: # $Id: lonhtmlcommon.pm,v 1.60 2004/03/08 17:31:37 www 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,$year)=('','','','','','');
235: if ($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: $result .= "selected " if ($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 = $tmpsec;
394: }
395: }
396: if (defined($ENV{'form.'.$dname.'_minute'})) {
397: my $tmpmin = $ENV{'form.'.$dname.'_minute'};
398: if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
399: $min = $tmpmin;
400: }
401: }
402: if (defined($ENV{'form.'.$dname.'_hour'})) {
403: my $tmphour = $ENV{'form.'.$dname.'_hour'};
404: if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
405: $hour = $tmphour;
406: }
407: }
408: if (defined($ENV{'form.'.$dname.'_day'})) {
409: my $tmpday = $ENV{'form.'.$dname.'_day'};
410: if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
411: $day = $tmpday;
412: }
413: }
414: if (defined($ENV{'form.'.$dname.'_month'})) {
415: my $tmpmonth = $ENV{'form.'.$dname.'_month'};
416: if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
417: $month = $tmpmonth - 1;
418: }
419: }
420: if (defined($ENV{'form.'.$dname.'_year'})) {
421: my $tmpyear = $ENV{'form.'.$dname.'_year'};
422: if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
423: $year = $tmpyear - 1900;
424: }
425: }
426: if (($year<70) || ($year>137)) { return undef; }
427: if (defined($sec) && defined($min) && defined($hour) &&
428: defined($day) && defined($month) && defined($year) &&
429: eval(&timelocal($sec,$min,$hour,$day,$month,$year))) {
430: return &timelocal($sec,$min,$hour,$day,$month,$year);
431: } else {
432: return undef;
433: }
434: }
435:
436: ##############################################
437: ##############################################
438:
439: =pod
440:
441: =item &pjump_javascript_definition()
442:
443: Returns javascript defining the 'pjump' function, which opens up a
444: parameter setting wizard.
445:
446: =cut
447:
448: ##############################################
449: ##############################################
450: sub pjump_javascript_definition {
451: my $Str = <<END;
452: function pjump(type,dis,value,marker,ret,call) {
453: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
454: +"&value="+escape(value)+"&marker="+escape(marker)
455: +"&return="+escape(ret)
456: +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
457: "height=350,width=350,scrollbars=no,menubar=no");
458: }
459: END
460: return $Str;
461: }
462:
463: ##############################################
464: ##############################################
465:
466: =pod
467:
468: =item &javascript_nothing()
469:
470: Return an appropriate null for the users browser. This is used
471: as the first arguement for window.open calls when you want a blank
472: window that you can then write to.
473:
474: =cut
475:
476: ##############################################
477: ##############################################
478: sub javascript_nothing {
479: # mozilla and other browsers work with "''", but IE on mac does not.
480: my $nothing = "''";
481: my $user_browser;
482: my $user_os;
483: $user_browser = $ENV{'browser.type'} if (exists($ENV{'browser.type'}));
484: $user_os = $ENV{'browser.os'} if (exists($ENV{'browser.os'}));
485: if (! defined($user_browser) || ! defined($user_os)) {
486: (undef,$user_browser,undef,undef,undef,$user_os) =
487: &Apache::loncommon::decode_user_agent();
488: }
489: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
490: $nothing = "'javascript:void(0);'";
491: }
492: return $nothing;
493: }
494:
495:
496: ##############################################
497: ##############################################
498:
499: =pod
500:
501: =item &StatusOptions()
502:
503: Returns html for a selection box which allows the user to choose the
504: enrollment status of students. The selection box name is 'Status'.
505:
506: Inputs:
507:
508: $status: the currently selected status. If undefined the value of
509: $ENV{'form.Status'} is taken. If that is undefined, a value of 'Active'
510: is used.
511:
512: $formname: The name of the form. If defined the onchange attribute of
513: the selection box is set to document.$formname.submit().
514:
515: $size: the size (number of lines) of the selection box.
516:
517: $onchange: javascript to use when the value is changed. Enclosed in
518: double quotes, ""s, not single quotes.
519:
520: Returns: a perl string as described.
521:
522: =cut
523:
524: ##############################################
525: ##############################################
526: sub StatusOptions {
527: my ($status, $formName,$size,$onchange)=@_;
528: $size = 1 if (!defined($size));
529: if (! defined($status)) {
530: $status = 'Active';
531: $status = $ENV{'form.Status'} if (exists($ENV{'form.Status'}));
532: }
533:
534: my $OpSel1 = '';
535: my $OpSel2 = '';
536: my $OpSel3 = '';
537:
538: if($status eq 'Any') { $OpSel3 = ' selected'; }
539: elsif($status eq 'Expired' ) { $OpSel2 = ' selected'; }
540: else { $OpSel1 = ' selected'; }
541:
542: my $Str = '';
543: $Str .= '<select name="Status"';
544: if(defined($formName) && $formName ne '' && ! defined($onchange)) {
545: $Str .= ' onchange="document.'.$formName.'.submit()"';
546: }
547: if (defined($onchange)) {
548: $Str .= ' onchange="'.$onchange.'"';
549: }
550: $Str .= ' size="'.$size.'" ';
551: $Str .= '>'."\n";
552: $Str .= '<option value="Active" '.$OpSel1.'>'.
553: &mt('Currently Enrolled').'</option>'."\n";
554: $Str .= '<option value="Expired" '.$OpSel2.'>'.
555: &mt('Previously Enrolled').'</option>'."\n";
556: $Str .= '<option value="Any" '.$OpSel3.'>'.
557: &mt('Any Enrollment Status').'</option>'."\n";
558: $Str .= '</select>'."\n";
559: }
560:
561: ########################################################
562: ########################################################
563:
564: =pod
565:
566: =item Progess Window Handling Routines
567:
568: These routines handle the creation, update, increment, and closure of
569: progress windows. The progress window reports to the user the number
570: of items completed and an estimate of the time required to complete the rest.
571:
572: =over 4
573:
574:
575: =item &Create_PrgWin
576:
577: Writes javascript to the client to open a progress window and returns a
578: data structure used for bookkeeping.
579:
580: Inputs
581:
582: =over 4
583:
584: =item $r Apache request
585:
586: =item $title The title of the progress window
587:
588: =item $heading A description (usually 1 line) of the process being initiated.
589:
590: =item $number_to_do The total number of items being processed.
591:
592: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
593: specified)
594:
595: =item $width Specify the width in charaters of the input field.
596:
597: =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
598:
599: =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
600:
601: =back
602:
603: Returns a hash containing the progress state data structure.
604:
605:
606: =item &Update_PrgWin
607:
608: Updates the text in the progress indicator. Does not increment the count.
609: See &Increment_PrgWin.
610:
611: Inputs:
612:
613: =over 4
614:
615: =item $r Apache request
616:
617: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
618:
619: =item $displaystring The string to write to the status indicator
620:
621: =back
622:
623: Returns: none
624:
625:
626: =item Increment_PrgWin
627:
628: Increment the count of items completed for the progress window by 1.
629:
630: Inputs:
631:
632: =over 4
633:
634: =item $r Apache request
635:
636: =item $prog_state Pointer to the data structure returned by Create_PrgWin
637:
638: =item $extraInfo A description of the items being iterated over. Typically
639: 'student'.
640:
641: =back
642:
643: Returns: none
644:
645:
646: =item Close_PrgWin
647:
648: Closes the progress window.
649:
650: Inputs:
651:
652: =over 4
653:
654: =item $r Apache request
655:
656: =item $prog_state Pointer to the data structure returned by Create_PrgWin
657:
658: =back
659:
660: Returns: none
661:
662: =back
663:
664: =cut
665:
666: ########################################################
667: ########################################################
668:
669: my $uniq=0;
670: sub get_uniq_name {
671: $uniq++;
672: return 'uniquename'.$uniq;
673: }
674:
675: # Create progress
676: sub Create_PrgWin {
677: my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
678: $inputname)=@_;
679: if (!defined($type)) { $type='popup'; }
680: if (!defined($width)) { $width=55; }
681: my %prog_state;
682: $prog_state{'type'}=$type;
683: if ($type eq 'popup') {
684: $prog_state{'window'}='popwin';
685: #the whole function called through timeout is due to issues
686: #in mozilla Read BUG #2665 if you want to know the whole story
687: &r_print($r,'<script>'.
688: "var popwin;
689: function openpopwin () {
690: popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
691: "popwin.document.writeln(\'<html><head><title>$title</title></head>".
692: "<body bgcolor=\"#88DDFF\">".
693: "<h4>$heading</h4>".
694: "<form name=popremain>".
695: '<input type="text" size="'.$width.'" name="remaining" value="'.
696: &mt('Starting').'"></form>'.
697: "</body></html>\');".
698: "popwin.document.close();}".
699: "\nwindow.setTimeout(openpopwin,0)</script>");
700: $prog_state{'formname'}='popremain';
701: $prog_state{'inputname'}="remaining";
702: } elsif ($type eq 'inline') {
703: $prog_state{'window'}='window';
704: if (!$formname) {
705: $prog_state{'formname'}=&get_uniq_name();
706: &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
707: } else {
708: $prog_state{'formname'}=$formname;
709: }
710: if (!$inputname) {
711: $prog_state{'inputname'}=&get_uniq_name();
712: &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
713: '" size="'.$width.'" />');
714: } else {
715: $prog_state{'inputname'}=$inputname;
716:
717: }
718: if (!$formname) { &r_print($r,'</form>'); }
719: &Update_PrgWin($r,\%prog_state,&mt('Starting'));
720: }
721:
722: $prog_state{'done'}=0;
723: $prog_state{'firststart'}=&Time::HiRes::time();
724: $prog_state{'laststart'}=&Time::HiRes::time();
725: $prog_state{'max'}=$number_to_do;
726:
727: return %prog_state;
728: }
729:
730: # update progress
731: sub Update_PrgWin {
732: my ($r,$prog_state,$displayString)=@_;
733: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
734: $$prog_state{'formname'}.'.'.
735: $$prog_state{'inputname'}.'.value="'.
736: $displayString.'";</script>');
737: $$prog_state{'laststart'}=&Time::HiRes::time();
738: }
739:
740: # increment progress state
741: sub Increment_PrgWin {
742: my ($r,$prog_state,$extraInfo)=@_;
743: $$prog_state{'done'}++;
744: my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
745: $$prog_state{'done'} *
746: ($$prog_state{'max'}-$$prog_state{'done'});
747: $time_est = int($time_est);
748: if (int ($time_est/60) > 0) {
749: my $min = int($time_est/60);
750: my $sec = $time_est % 60;
751: $time_est = $min.' '.&mt('minutes');
752: if ($min < 10) {
753: if ($sec > 1) {
754: $time_est.= ', '.$sec.' '.&mt('seconds');
755: } elsif ($sec > 0) {
756: $time_est.= ', '.$sec.' '.&mt('second');
757: }
758: }
759: } else {
760: $time_est .= ' '.&mt('seconds');
761: }
762: my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
763: if ($lasttime > 9) {
764: $lasttime = int($lasttime);
765: } elsif ($lasttime < 0.01) {
766: $lasttime = 0;
767: } else {
768: $lasttime = sprintf("%3.2f",$lasttime);
769: }
770: if ($lasttime == 1) {
771: $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
772: } else {
773: $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
774: }
775: #
776: my $user_browser = $ENV{'browser.type'} if (exists($ENV{'browser.type'}));
777: my $user_os = $ENV{'browser.os'} if (exists($ENV{'browser.os'}));
778: if (! defined($user_browser) || ! defined($user_os)) {
779: (undef,$user_browser,undef,undef,undef,$user_os) =
780: &Apache::loncommon::decode_user_agent();
781: }
782: if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
783: $lasttime = '';
784: }
785: &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
786: $$prog_state{'formname'}.'.'.
787: $$prog_state{'inputname'}.'.value="'.
788: $$prog_state{'done'}.'/'.$$prog_state{'max'}.
789: ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
790: $$prog_state{'laststart'}=&Time::HiRes::time();
791: }
792:
793: # close Progress Line
794: sub Close_PrgWin {
795: my ($r,$prog_state)=@_;
796: if ($$prog_state{'type'} eq 'popup') {
797: &r_print($r,'<script>popwin.close()</script>'."\n");
798: } elsif ($$prog_state{'type'} eq 'inline') {
799: &Update_PrgWin($r,$prog_state,&mt('Done'));
800: }
801: undef(%$prog_state);
802: }
803:
804: sub r_print {
805: my ($r,$to_print)=@_;
806: if ($r) {
807: $r->print($to_print);
808: $r->rflush();
809: } else {
810: print($to_print);
811: }
812: }
813:
814: # ------------------------------------------------------- Puts directory header
815:
816: sub crumbs {
817: my ($uri,$target,$prefix,$form)=@_;
818: my $output='<br /><tt><b><font size="+2">'.$prefix.'/';
819: if ($ENV{'user.adv'}) {
820: my $path=$prefix.'/';
821: foreach (split('/',$uri)) {
822: unless ($_) { next; }
823: $path.=$_;
824: unless ($path eq $uri) { $path.='/'; }
825: my $linkpath=$path;
826: if ($form) {
827: $linkpath="javascript:$form.action='$path';$form.submit();";
828: }
829: $output.='<a href="'.$linkpath.'"'.($target?' target="'.$target.'"':'').'>'.$_.'</a>/';
830: }
831: } else {
832: $output.=$uri;
833: }
834: unless ($uri=~/\/$/) { $output=~s/\/$//; }
835: return $output.'</font></b></tt><br />';
836: }
837:
838: # ------------------------------------------------- Output headers for HTMLArea
839:
840: sub htmlareaheaders {
841: unless (&htmlareabrowser()) { return ''; }
842: my $lang='en';
843: return (<<ENDHEADERS);
844: <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
845: <script type="text/javascript" src="/htmlarea/lang/$lang.js"></script>
846: <script type="text/javascript" src="/htmlarea/dialog.js"></script>
847: <style type="text/css">
848: \@import url(/htmlarea/htmlarea.css);
849: </style>
850: ENDHEADERS
851: }
852:
853: # ---------------------------------------------------------- Script to activate
854:
855: sub htmlareaactive {
856: unless (&htmlareabrowser()) { return ''; }
857: return (<<ENDSCRIPT);
858: <script type="text/javascript" defer="1">
859: HTMLArea.replaceAll();
860: </script>
861: ENDSCRIPT
862: }
863:
864: # ---------------------------------------- Browser capable of running HTMLArea?
865:
866: sub htmlareabrowser {
867: return 1;
868: }
869:
870: ############################################################
871: ############################################################
872:
873: =pod
874:
875: =item breadcrumbs
876:
877: Compiles the previously registered breadcrumbs into an series of links.
878: FAQ and BUG links will be placed on the left side of the table if they
879: are defined for the last registered breadcrumb.
880: Additionally supports a 'component', which will be displayed on the
881: right side of the table (without a link).
882: A link to help for the component will be included if one is specified.
883:
884: All inputs can be undef without problems.
885:
886: Inputs: $color (the background color of the table returned),
887: $component (the large text on the right side of the table),
888: $component_help
889:
890: Returns a string containing breadcrumbs for the current page.
891:
892: =item clear_breadcrumbs
893:
894: Clears the previously stored breadcrumbs.
895:
896: =item add_breadcrumb
897:
898: Pushes a breadcrumb on the stack of crumbs.
899:
900: input: $breadcrumb, a hash reference. The keys 'href','title', and 'text'
901: are required. If present the keys 'faq' and 'bug' will be used to provide
902: links to the FAQ and bug sites.
903:
904: returns: nothing
905:
906: =cut
907:
908: ############################################################
909: ############################################################
910: {
911: my @Crumbs;
912:
913: sub breadcrumbs {
914: my ($color,$component,$component_help,$function,$domain) = @_;
915: if (! defined($color)) {
916: if (! defined($function)) {
917: $function = &Apache::loncommon::get_users_function();
918: }
919: $color = &Apache::loncommon::designparm($function.'.tabbg',
920: $domain);
921: }
922: #
923: my $Str = "\n".
924: '<table width="100%" border="0" cellpadding="0" cellspacing="0">'.
925: '<tr><td bgcolor="'.$color.'">'.
926: '<font size="-1">';
927: #
928: # Make the faq and bug data cascade
929: my $faq = '';
930: my $bug = '';
931: # The last breadcrumb does not have a link, so handle it separately.
932: my $last = pop(@Crumbs);
933: #
934: # The first one should be the course, I guess.
935: if (exists($ENV{'request.course.id'})) {
936: my $cid = $ENV{'request.course.id'};
937: unshift(@Crumbs,{
938: href=>'/adm/menu',
939: title=>'Go to main menu',
940: text=>$ENV{'course.'.$cid.'.description'},
941: });
942: }
943: my $links .=
944: join('->',
945: map {
946: $faq = $_->{'faq'} if (exists($_->{'faq'}));
947: $bug = $_->{'bug'} if (exists($_->{'bug'}));
948: '<a href="'.$_->{'href'}.'" title="'.&mt($_->{'title'}).'">'.
949: &mt($_->{'text'}).'</a>'
950: } @Crumbs
951: );
952: $links .= '->' if ($links ne '');
953: $links .= '<b>'.$last->{'text'}.'</b>';
954: #
955: my $icons = '';
956: $faq = $last->{'faq'} if (exists($last->{'faq'}));
957: $bug = $last->{'bug'} if (exists($last->{'bug'}));
958: if ($faq ne '') {
959: $icons .= &Apache::loncommon::help_open_faq($faq);
960: }
961: if ($bug ne '') {
962: $icons .= &Apache::loncommon::help_open_bug($bug);
963: }
964: if ($icons ne '') {
965: $Str .= $icons.' ';
966: }
967: #
968: $Str .= $links.'</font></td>';
969: #
970: if (defined($component)) {
971: $Str .= '<td align="right" bgcolor="'.$color.'">'.
972: '<font size="+1">'.&mt($component).'</font>';
973: if (defined($component_help)) {
974: $Str .=
975: &Apache::loncommon::help_open_topic($component_help);
976: }
977: $Str.= '</td>';
978: }
979: $Str .= '</tr></table>'."\n";
980: #
981: # Return the @Crumbs stack to what we started with
982: push(@Crumbs,$last);
983: shift(@Crumbs);
984: #
985: return $Str;
986: }
987:
988: sub clear_breadcrumbs {
989: undef(@Crumbs);
990: }
991:
992: sub add_breadcrumb {
993: push (@Crumbs,@_);
994: }
995:
996: } # End of scope for @Crumbs
997:
998: ############################################################
999: ############################################################
1000:
1001:
1002: 1;
1003:
1004: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonhtmlcommon.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface