File:  [LON-CAPA] / loncom / interface / lonextresedit.pm
Revision 1.8.2.4.2.2: download - view: text, annotated - select for diffs
Sun Oct 25 20:14:42 2020 UTC (3 years, 6 months ago) by raeburn
Branches: version_2_11_3_msu
Diff to branchpoint 1.8.2.4: preferred, unified
- For 2.11.3 (modified)
  Include changes in 1.20, 1.21, 1.22, 1.24

    1: # The LearningOnline Network
    2: # Documents
    3: #
    4: # $Id: lonextresedit.pm,v 1.8.2.4.2.2 2020/10/25 20:14:42 raeburn 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: package Apache::lonextresedit;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common :http);
   33: use HTML::Entities;
   34: use Apache::lonlocal;
   35: use Apache::lonnet;
   36: use Apache::loncommon;
   37: use Apache::lonhtmlcommon;
   38: use Apache::lonuserstate;
   39: use LONCAPA::map();
   40: use LONCAPA qw(:DEFAULT :match);
   41: 
   42: sub handler {
   43:     my $r=shift;
   44:     &Apache::loncommon::content_type($r,'text/html');
   45:     $r->send_http_header;
   46: 
   47:     return OK if $r->header_only;
   48: 
   49:     # Check for access
   50:     if (! &Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
   51:         $env{'user.error.msg'}=
   52:             $r->uri.":mdc:0:0:Cannot modify course content.";
   53:             return HTTP_NOT_ACCEPTABLE;
   54:     }
   55: 
   56:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
   57:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
   58:     my $chome = $env{'course.'.$env{'request.course.id'}.'.home'};
   59:     my ($supplementalflag,$updated,$output,$errormsg,$residx,$url,$title,
   60:         $symb,$type);
   61:     if (($env{'form.folderpath'} =~ /^supplemental/) && ($env{'form.suppurl'})) {
   62:         $supplementalflag = 1;
   63:         if (&unescape($env{'form.suppurl'}) =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) {
   64:             $type = 'tool';
   65:         }
   66:     }
   67:     if (($supplementalflag) || ($env{'form.symb'} =~ /^uploaded/)) {
   68:         ($updated,$output,$errormsg,$residx,$url,$title,$symb) =
   69:             &process_changes($supplementalflag,$cdom,$cnum,$chome);
   70:         if ($supplementalflag) {
   71:             if ($url ne &unescape($env{'form.suppurl'})) {
   72:                  $env{'form.suppurl'} = $url;
   73:             }
   74:             if ($title ne $env{'form.title'}) {
   75:                 $env{'form.title'} = $title;
   76:             }
   77:             $env{'form.idx'} = $residx;
   78:         } else {
   79:             if ($symb ne $env{'form.symb'}) {
   80:                 $env{'form.symb'} = $symb;
   81:             }
   82:             if ($url =~ m{/adm/$cdom/$cnum/\d+/ext\.tool$}) {
   83:                 $type = 'tool';
   84:             }
   85:         }
   86:     } else {
   87:         $errormsg = &mt('Information about external resource to edit is missing.');
   88:     }
   89:     if ($updated) {
   90:         my $msg = &mt('External Resource updated');
   91:         if ($type eq 'tool') {
   92:             $msg = &mt('External Tool updated');
   93:         }
   94:         $output = &Apache::lonhtmlcommon::confirm_success($msg);
   95:     }
   96:     if ($errormsg) {
   97:         $errormsg = '<p class="LC_error">'.$errormsg.'</p>';
   98:     }
   99:     my %ltitools;
  100:     if ($type eq 'tool') {
  101:         %ltitools = &Apache::lonnet::get_domain_lti($cdom,'consumer');
  102:     }
  103:     my $js = &Apache::lonhtmlcommon::scripttag(&extedit_javascript());
  104:     my $pathitem = '<input type="hidden" name="folderpath" value="'.
  105:                    &HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />';
  106:     my $description = 'External Resource Editor';
  107:     if ($type eq 'tool') {
  108:         $description = 'External Tool Editor'; 
  109:     }
  110:     $r->print(&Apache::loncommon::start_page($description,$js).
  111:               '<div class="LC_left_float">'.
  112:               $output.
  113:               $errormsg.
  114:               &extedit_form($supplementalflag,$residx,$url,$title,$pathitem,undef,
  115:                            'direct',$env{'form.symb'},$type,$cdom,$cnum,\%ltitools).
  116:               '</div>'.&Apache::loncommon::end_page());
  117:     return OK;
  118: }
  119: 
  120: sub process_changes {
  121:     my ($supplementalflag,$cdom,$cnum,$chome) = @_;
  122:     my ($folder,$container,$output,$errormsg,$updated,$symb,$oldidx,$oldurl,$type,
  123:         $oldtitle,$newidx,$newurl,$newtitle,$residx,$url,$title,$marker,$args);
  124:     if ($env{'form.symb'}) {
  125:         $symb = $env{'form.symb'};
  126:         (my $map,$oldidx,$oldurl)=&Apache::lonnet::decode_symb($symb);
  127:         if ($map =~ m{^uploaded/$cdom/$cnum/(default(_\d+|))\.(sequence|page)$}) {
  128:             $folder = $1;
  129:             $container = $3;
  130:         }
  131:         $oldtitle = &Apache::lonnet::gettitle($env{'form.symb'});
  132:         if ($oldurl =~ m{^ext/(.+)$}) {
  133:             my $external = $1;
  134:             if ($external =~ m{^https://}) {
  135:                 $oldurl = $external;
  136:             } else {
  137:                 $oldurl = 'http://'.$oldurl;
  138:             }
  139:             $type = 'ext';
  140:         } else {
  141:             $type = 'tool';
  142:         }
  143:     } elsif ($env{'form.folderpath'}) {
  144:         $folder = &unescape( (split('&',$env{'form.folderpath'}))[-2] );
  145:         $oldurl = &unescape($env{'form.suppurl'});
  146:         $oldtitle = &unescape($env{'form.title'});
  147:         $container = 'sequence';
  148:         $supplementalflag = 1;
  149:         if ($oldurl =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) {
  150:             $type = 'tool';
  151:         } else {
  152:             $type = 'ext';
  153:         }
  154:     }
  155:     $url = $oldurl;
  156:     $title = $oldtitle;
  157:     if ($env{'form.importdetail'}) {
  158:         ($newtitle,$newurl,$newidx) =
  159:             map {&unescape($_)} split(/\=/,$env{'form.importdetail'});
  160:         if ($newurl =~ m{^(/adm/$cdom/$cnum/(\d+)/ext\.tool)\:?(.*)$}) {
  161:             $newurl = $1;
  162:             $marker = $2;
  163:             $args = $3;
  164:         }
  165:     }
  166:     if ($supplementalflag) {
  167:         $residx = $newidx;
  168:     } else {
  169:         $residx = $oldidx;
  170:     }
  171:     if ($folder && $container) {
  172:         if ($env{'form.importdetail'}) {
  173:             my ($errtext,$fatal,$mismatchedid,@imports);
  174:             if (!$supplementalflag) {
  175:                 if (($oldidx) && ($oldidx != $newidx)) {
  176:                     $mismatchedid = 1;
  177:                 }
  178:             }
  179:             if ($mismatchedid) {
  180:                 $errormsg = 'Wrong item identifier';
  181:             } elsif (($newtitle eq $oldtitle) && ($newurl eq $oldurl)) {
  182:                 if ($type eq 'tool') {
  183:                     if ($args) {
  184:                         ($updated,$errormsg) = &update_exttool($marker,$cdom,$cnum,$args);
  185:                         unless ($updated) {
  186:                             $output = &mt('No change');      
  187:                         }
  188:                     } else {
  189:                         $output = &mt('No change');
  190:                     }
  191:                 } else {
  192:                     $output = &mt('No change');
  193:                 }
  194:             } else {
  195:                 my $map = "/uploaded/$cdom/$cnum/$folder.$container";
  196:                 my ($errtext,$fatal) = &LONCAPA::map::mapread($map);
  197:                 if ($fatal) {
  198:                     $errormsg = &mt('Update failed: [_1].',$errtext);
  199:                 } else {
  200:                     my $saveurl = &LONCAPA::map::qtunescape($newurl);
  201:                     my $savetitle = &LONCAPA::map::qtunescape($newtitle);
  202:                     my $ext = 'true';
  203:                     if ($type eq 'tool') {
  204:                         if ($args) {
  205:                             ($updated,$errormsg) = &update_exttool($marker,$cdom,$cnum,$args);
  206:                         }
  207:                         $ext = 'false';
  208:                     }
  209:                     $LONCAPA::map::resources[$residx] =
  210:                         join(':', ($savetitle,$saveurl,$ext,'normal','res'));
  211:                     my ($outtext,$errtext) = &LONCAPA::map::storemap($map,1);
  212:                     if ($errtext) {
  213:                         $errormsg = &mt('Update failed: [_1].',$errtext);
  214:                     } else {
  215:                         $updated = 1;
  216:                         $title = $newtitle;
  217:                         if ($newurl ne $oldurl) {
  218:                             $url = $newurl;
  219:                             if ($ext eq 'true') {
  220:                                 $newurl =~ s{^http://}{};
  221:                                 $newurl = "ext/$newurl";
  222:                             }
  223:                         }
  224:                         if (!$supplementalflag) {
  225:                             if ($newurl ne $oldurl) {
  226:                                 $symb = &Apache::lonnet::encode_symb($map,$residx,$newurl);
  227:                             } else {
  228:                                 $symb = $env{'form.symb'};
  229:                                 if ($symb) {
  230:                                     &Apache::lonnet::devalidate_title_cache($symb);
  231:                                 }
  232:                             }
  233:                         }
  234:                         my ($furl,$ferr) = 
  235:                             &Apache::lonuserstate::readmap("$cdom/$cnum");
  236:                         if ($ferr) {
  237:                             $errormsg = &mt('Reload failed: [_1].',$ferr);
  238:                         } else {
  239:                             unless ($supplementalflag) {
  240:                                 &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,$cdom.'_'.$cnum);
  241:                             }
  242:                         }
  243:                     }
  244:                 }
  245:             }
  246:         } else {
  247:             $output = &mt('No change');
  248:         }
  249:     } else {
  250:         if ($type eq 'tool') {
  251:             $errormsg = &mt('Information about current external tool is incomplete.');
  252:         } else {
  253:             $errormsg = &mt('Information about current external resource is incomplete.');
  254:         }
  255:     }
  256:     return ($updated,$output,$errormsg,$residx,$url,$title,$symb);
  257: }
  258: 
  259: sub update_exttool {
  260:     my ($marker,$cdom,$cnum,$args) = @_;
  261:     my (%newhash,$changed,@deleted,$errormsg);
  262:     ($newhash{'target'},$newhash{'width'},$newhash{'height'},$newhash{'linktext'},$newhash{'explanation'},
  263:      $newhash{'crslabel'},$newhash{'crstitle'},$newhash{'crsappend'}) = split(/:/,$args);
  264:     foreach my $item ('linktext','explanation','crslabel','crstitle','crsappend') {
  265:         $newhash{$item} = &unescape($newhash{$item});
  266:     }
  267:     my %toolhash=&Apache::lonnet::dump('exttool_'.$marker,$cdom,$cnum);
  268:     foreach my $item ('target','width','height','linktext','explanation','crslabel','crstitle','crsappend') {
  269:         $newhash{$item} =~ s/^\s+//;
  270:         $newhash{$item} =~ s/\s+$//;
  271:         if (($item eq 'width') || ($item eq 'height') || ($item eq 'linktext') || ($item eq 'explanation')) {
  272:             if ($newhash{'target'} eq 'iframe') {
  273:                 $newhash{$item} = '';
  274:             } elsif ($newhash{'target'} eq 'tab') {
  275:                 if (($item eq 'width') || ($item eq 'height')) {
  276:                     $newhash{$item} = '';
  277:                 }
  278:             }
  279:         }
  280:         if ($toolhash{$item} ne $newhash{$item}) {
  281:             if ($newhash{$item} eq '') {
  282:                 unless (($item eq 'target') ||
  283:                         ((($item eq 'width') || ($item eq 'height')) &&
  284:                          (($newhash{'target'} eq 'window') || 
  285:                           (($newhash{'target'} eq '') && ($toolhash{'target'} eq 'window')))) ||
  286:                         ((($item eq 'linktext') || ($item eq 'explanation')) &&
  287:                          ((($newhash{'target'} =~ /^(window|tab)$/)) ||
  288:                          (($newhash{'target'} eq '') && ($toolhash{'target'} =~ /^(window|tab)$/))))) {
  289:                     delete($toolhash{$item});
  290:                     push(@deleted,$item);
  291:                     $changed = 1;
  292:                 }
  293:             } else {
  294:                 $toolhash{$item} = $newhash{$item};
  295:                 $changed = 1; 
  296:             }
  297:         }
  298:     }
  299:     if ($changed) {
  300:         my $putres = &Apache::lonnet::put('exttool_'.$marker,\%toolhash,$cdom,$cnum);
  301:         unless ($putres eq 'ok') {
  302:             $errormsg = &mt('Failed to save updated settings.').' '.&mt('Error: [_1].',$putres);
  303:         }
  304:     }
  305:     if (@deleted) {
  306:         &Apache::lonnet::del('exttool_'.$marker,\@deleted,$cdom,$cnum);
  307:     }
  308:     return ($changed,$errormsg);
  309: }
  310: 
  311: sub extedit_form {
  312:     my ($supplementalflag,$residx,$orig_url,$orig_title,$pathitem,$helpitem,$caller,
  313:         $symb,$type,$cdom,$cnum,$ltitools,$disabled) = @_;
  314:     if ($type ne 'tool') {
  315:         $type = 'ext';
  316:     }
  317:     my %lt = &Apache::lonlocal::texthash(
  318:         ex => 'External Resource',
  319:         et => 'External Tool',
  320:         ed => 'Edit',
  321:         ee => 'External Resource Editor',
  322:         te => 'External Tool Editor',
  323:         pr => 'Preview',
  324:         sv => 'Save',
  325:         ul => 'URL',
  326:         ti => 'Title',
  327:         al => 'Add Link',
  328:         at => 'Add Tool',
  329:     );
  330:     my $tabid = 'aa';
  331:     my $size = 60;
  332:     if ($supplementalflag) {
  333:         $tabid = 'ee';
  334:     }
  335:     my ($formname,$formid,$toggle,$fieldsetid,$urlid,$dispdivstyle,$dimendivstyle,
  336:         $windivstyle,$linktextstyle,$explanationstyle,$labelstyle,$titlestyle,
  337:         $appendstyle,$legend,$urlelem,$toolelem,%toolattr);
  338:     $formname = 'new'.$type;
  339:     $toggle = $type;
  340:     $fieldsetid = 'upload'.$type.'form';
  341:     $urlid = $type.'url';
  342:     map { $toolattr{$_} = $type.$_; } ('dispdiv','dimendiv','dimenwidth','dimenheight',
  343:                                        'crstitlediv','crslabeldiv','crsappenddiv',
  344:                                        'crstitle','crslabel','crsappend','windiv',
  345:                                        'linktextdiv','explanationdiv','linktext',
  346:                                        'explanation','providerurl');
  347:     $dispdivstyle = 'display:none';
  348:     $dimendivstyle = 'display:none';
  349:     $windivstyle = 'display:none';
  350:     $linktextstyle = 'display:none';
  351:     $explanationstyle = 'display:none';
  352:     $labelstyle = 'display:none';
  353:     $titlestyle = 'display:none';
  354:     $appendstyle = 'display:none';
  355:     if ($supplementalflag) {
  356:         $formname = 'newsupp'.$type;
  357:         $toggle = 'supp'.$type;
  358:         $fieldsetid = 'uploadsupp'.$type.'form';
  359:         $urlid = 'supp'.$type.'url';
  360:         map { $toolattr{$_} = 'supp'.$toolattr{$_}; } (keys(%toolattr));
  361:     }
  362:     my ($link,$legend,$active,$srcclass,$extsrc,$preview,$title,$save,$crstitle,$crslabel,
  363:         $crsappend,$fieldsetstyle,$action,$hiddenelem,$form,$width,$height,$tooltarget,
  364:         $linktext,$explanation,$providerurl,%chkstate);
  365:     $fieldsetstyle = 'display: none;';
  366:     $action = '/adm/coursedocs';
  367:     my $protocol = ($ENV{'SERVER_PORT'} == 443?'https':'http');
  368:     my $rows = 2;
  369:     my $cols = 20;
  370:     if ($residx) {
  371:         if ($caller eq 'direct') {
  372:             $fieldsetstyle = 'display: block;';
  373:             $action = '/adm/extresedit';
  374:             $rows = 10;
  375:             $cols = 45;
  376:             if ($type eq 'tool') {
  377:                 $legend = $lt{'ee'};
  378:             } else {
  379:                 $legend = $lt{'te'};
  380:             }
  381:             $legend = '<legend>'.$legend.'</legend>';
  382:             if ($symb) {
  383:                 $hiddenelem = '<input type="hidden" name="symb" value="'.$symb.'" />';
  384:             } elsif ($supplementalflag) {
  385:                 $hiddenelem = '<input type="hidden" name="suppurl" value="'.
  386:                               &HTML::Entities::encode(&escape($orig_url),'<>&"').'" />'."\n".
  387:                               '<input type="hidden" name="title" value="'.
  388:                               &HTML::Entities::encode(&escape($orig_title),'<>&"').'" />';
  389:             }
  390:         } else {
  391:             $link = '<a class="LC_docs_ext_edit" href="javascript:editext('."'$residx','$type'".');">'.$lt{'ed'}.'</a>&nbsp;'."\n";
  392:             $size = 40;
  393:             $active = '<input type="hidden" name="active" value="'.$tabid.'" />';
  394:         }
  395:         $formname = 'edit'.$type.'_'.$residx;
  396:         $fieldsetid = 'upload'.$type.$residx;
  397:         $urlid = $type.'url_'.$residx;
  398:         map { $toolattr{$_} .= '_'.$residx; } (keys(%toolattr));
  399:         $srcclass = ' class="LC_nobreak"';
  400:         if ($type eq 'ext') {
  401:             $extsrc = '<span class="LC_docs_ext_edit">'.$lt{'ul'}.'&nbsp;</span>';
  402:             $preview = '&nbsp;<a class="LC_docs_ext_edit" href="javascript:extUrlPreview('."'$urlid','$protocol'".');">'.$lt{'pr'}.'</a>';
  403:         }
  404:         $title = '<span class="LC_docs_ext_edit">'.$lt{'ti'}.'&nbsp;</span>';
  405:         $save = $lt{'sv'};
  406:     } else {
  407:         $link = $lt{'ex'};
  408:         if ($type eq 'tool') {
  409:             $link = $lt{'et'};
  410:         }
  411:         $link = '<a class="LC_menubuttons_link" href="javascript:toggleUpload('."'$toggle'".');">'.$link.'</a>'.$helpitem;
  412:         if ($type eq 'tool') {
  413:             $legend = $lt{'te'};
  414:         } else {
  415:             $legend = $lt{'ee'};
  416:         }
  417:         $legend = '<legend>'.$legend.'</legend>';
  418:         $title = $lt{'ti'}.':<br />';
  419:         $residx = 0;
  420:         if ($type eq 'ext') {
  421:             $orig_url = 'http://';
  422:             $orig_title = $lt{'ex'};
  423:             $extsrc = $lt{'ul'}.':<br />';
  424:             $preview = '<input type="button" name="view" value="'.$lt{'pr'}.'" onclick="javascript:extUrlPreview('."'$urlid','$protocol'".');"'.$disabled.' />';
  425:             $save = $lt{'al'};
  426:         } else {
  427:             $orig_title = $lt{'et'};
  428:             $save = $lt{'at'};
  429:             $orig_url = "/adm/$cdom/$cnum/new/ext\.tool"; 
  430:         }
  431:         $pathitem .= '<br />';
  432:     }
  433:     $formid = $formname;
  434:     if ($type eq 'ext') {
  435:         $urlelem = '<input type="text" size="'.$size.'" name="exturl" id="'.$urlid.'" value="'.$orig_url.'"'.$disabled.' />';
  436:     } else {
  437:         my $class = 'LC_nobreak';
  438:         if ($residx) {
  439:             $class = 'LC_docs_ext_edit LC_nobreak'; 
  440:             if ($orig_url =~ m{^/adm/$cdom/$cnum/(\d+)/ext\.tool$}) {
  441:                 my $marker = $1;
  442:                 my %toolhash=&Apache::lonnet::dump('exttool_'.$marker,$cdom,$cnum);
  443:                 if ($toolhash{'id'}) {
  444:                     if (ref($ltitools) eq 'HASH') {
  445:                         if (keys(%{$ltitools})) {
  446:                             if (ref($ltitools->{$toolhash{'id'}}) eq 'HASH') {
  447:                                 my $tooltitle = $ltitools->{$toolhash{'id'}}->{'title'};
  448:                                 my $icon = $ltitools->{$toolhash{'id'}}->{'image'};
  449:                                 my $image;
  450:                                 if ($icon) {
  451:                                     $image = '<img src="'.$icon.'" alt="'.$tooltitle.'" />';
  452:                                 }
  453:                                 if ($ltitools->{$toolhash{'id'}}->{'url'} =~ m{://}) {
  454:                                     (my $prot,my $host,$providerurl) = ($ltitools->{$toolhash{'id'}}->{'url'} =~ m{^([^/]+)://([^/]+)(|/.+)$});
  455:                                 } else {
  456:                                     $providerurl = $ltitools->{$toolhash{'id'}}->{'url'};
  457:                                 }
  458:                                 $tooltarget = $toolhash{'target'};
  459:                                 if ($tooltarget eq 'window') {
  460:                                     $dimendivstyle = 'display:block';
  461:                                     $windivstyle = 'display:block';
  462:                                     $chkstate{'window'} = 'checked="checked" ';
  463:                                 } elsif ($tooltarget eq 'tab') {
  464:                                     $windivstyle = 'display:block';
  465:                                     $chkstate{'tab'} = 'checked="checked" ';
  466:                                 } else {
  467:                                     $chkstate{'iframe'} = 'checked="checked" ';
  468:                                 }
  469:                                 $width = $toolhash{'width'};
  470:                                 $height = $toolhash{'height'};
  471:                                 $linktext = $toolhash{'linktext'};
  472:                                 $explanation = $toolhash{'explanation'};
  473:                                 if (ref($ltitools->{$toolhash{'id'}}->{'crsconf'}) eq 'HASH') {
  474:                                     if ($ltitools->{$toolhash{'id'}}->{'crsconf'}->{'title'}) {
  475:                                         $crstitle = $toolhash{'crstitle'};
  476:                                         $titlestyle = 'display:inline';
  477:                                     }
  478:                                     if ($ltitools->{$toolhash{'id'}}->{'crsconf'}->{'label'}) {  
  479:                                         $crslabel = $toolhash{'crslabel'};
  480:                                         $labelstyle = 'display:inline';
  481:                                     }
  482:                                     if ($ltitools->{$toolhash{'id'}}->{'crsconf'}->{'append'}) {
  483:                                         $crsappend = $toolhash{'crsappend'};
  484:                                         $appendstyle = 'display:inline';
  485:                                     }
  486:                                     if ($ltitools->{$toolhash{'id'}}->{'crsconf'}->{'target'}) {
  487:                                         $dispdivstyle = 'display:block';
  488:                                     }
  489:                                     if ($ltitools->{$toolhash{'id'}}->{'crsconf'}->{'linktext'}) {
  490:                                         $linktextstyle = 'padding:0;display:inline';
  491:                                     }
  492:                                     if ($ltitools->{$toolhash{'id'}}->{'crsconf'}->{'explanation'}) {
  493:                                         $explanationstyle = 'padding:0;display:inline';
  494:                                     }
  495:                                 }
  496:                                 $toolelem = '<span class="LC_nobreak">'.$image.'&nbsp;'.$tooltitle.'</span><br />';
  497:                             }
  498:                         }
  499:                     }
  500:                 }
  501:             }
  502:         } else {
  503:             $toolelem = '<span class="LC_docs_ext_edit">'."\n".
  504:                        '<select name="exttoolid" id="LC_exttoolid" onchange="javascript:updateExttool(this,'.
  505:                        'this.form,'."'$supplementalflag'".');"'.$disabled.'>'."\n".
  506:                        '<option value="" selected="selected">'.&mt('Select').'</option>';
  507:             my %bynum;
  508:             if (ref($ltitools) eq 'HASH') {
  509:                 foreach my $id (keys(%{$ltitools})) {
  510:                     if (ref($ltitools->{$id}) eq 'HASH') {
  511:                         my $order = $ltitools->{$id}->{'order'};
  512:                         $bynum{$order} = [$id,$ltitools->{$id}];
  513:                     }
  514:                 }
  515:             }
  516:             foreach my $item (sort { $a <=> $b } keys(%bynum)) {
  517:                 if (ref($bynum{$item}) eq 'ARRAY') {
  518:                     if (ref($bynum{$item}->[1]) eq 'HASH') {
  519:                         my $tooltitle = $bynum{$item}->[1]->{'title'};
  520:                         my $icon =  $bynum{$item}->[1]->{'image'};
  521:                         $toolelem .= '<option value="'.$bynum{$item}->[0].'">'.$tooltitle.'</option>';
  522:                     }
  523:                 }
  524:             }
  525:             $toolelem .= '</select></span><br />';
  526:             $crslabel = $env{'course.'.$cdom.'_'.$cnum.'.internal.coursecode'};
  527:             $crstitle = $env{'course.'.$cdom.'_'.$cnum.'.description'};
  528:             $crsappend = '';
  529:         }
  530:         $toolelem .= '<div id="'.$toolattr{'dispdiv'}.'" style="'.$dispdivstyle.'">'.
  531:                     '<span class="'.$class.'">'.&mt('Display target:').'&nbsp;'.
  532:                     '<label><input type="radio" name="exttooltarget" value="iframe" '.$chkstate{'iframe'}.'onclick="updateTooldim(this.form,'.
  533:                     "'$toolattr{dimendiv}','$toolattr{windiv}','$toolattr{dimenwidth}','$toolattr{dimenheight}',
  534:                     '$toolattr{linktext}','$toolattr{explanation}'".');"'.$disabled.' />'.&mt('iframe').'</label>'.('&nbsp;'x2).
  535:                     '<label><input type="radio" name="exttooltarget" value="tab" '.$chkstate{'tab'}.'onclick="updateTooldim(this.form,'.
  536:                     "'$toolattr{dimendiv}','$toolattr{windiv}','$toolattr{dimenwidth}','$toolattr{dimenheight}',
  537:                     '$toolattr{linktext}','$toolattr{explanation}'".');"'.$disabled.' />'.&mt('tab').'</label>'.('&nbsp;'x2).
  538:                     '<label><input type="radio" name="exttooltarget" value="window" '.$chkstate{'window'}.'onclick="updateTooldim(this.form,'.
  539:                     "'$toolattr{dimendiv}','$toolattr{windiv}','$toolattr{dimenwidth}','$toolattr{dimenheight}',
  540:                     '$toolattr{linktext}','$toolattr{explanation}'".');"'.$disabled.' />'.&mt('window').'</label></span>'.
  541:                     '<div id="'.$toolattr{'dimendiv'}.'" style="'.$dimendivstyle.'"><span class="'.$class.'">'.
  542:                     &mt('Width').':&nbsp;<input type="text" size="4" id="'.$toolattr{'dimenwidth'}.'" name="exttoolwidth" value="'.$width.'"'.$disabled.' />'.('&nbsp;'x2).
  543:                     &mt('Height').':&nbsp;<input type="text" size="4" id="'.$toolattr{'dimenheight'}.'" name="exttoolheight" value="'.$height.'"'.$disabled.' /></span>'."\n".
  544:                     '</div></div>';
  545:         $toolelem .= '<div id="'.$toolattr{'windiv'}.'" style="'.$windivstyle.'">'.
  546:                      '<div id="'.$toolattr{'linktextdiv'}.'" class="LC_left_float" style="'.$linktextstyle.'">'.
  547:                      '<span class="'.$class.'">'.&mt('Link Text').'</span><br /><input type="text" size="25" id="'.$toolattr{'linktext'}.
  548:                      '" name="exttoollinktext" value="'.$linktext.'"'.$disabled.' />'.
  549:                      '</div><div id="'.$toolattr{'explanationdiv'}.'" class="LC_left_float" style="'.$explanationstyle.'">'.
  550:                      '<span class="'.$class.'">'.&mt('Explanation').'</span><br />'.
  551:                      '<textarea rows="'.$rows.'" cols="'.$cols.'" id="'.$toolattr{'explanation'}.'" name="exttoolexplanation" '.$disabled.'>'.
  552:                      $explanation.'</textarea></div><div style="padding:0;clear:both;margin:0;border:0"></div>'.
  553:                      '</div>';
  554:         $toolelem .= '<div id="'.$toolattr{'crslabeldiv'}.'" style="'.$labelstyle.'">'.
  555:                     '<span class="'.$class.'">'.&mt('Course label:').'&nbsp;'.
  556:                     '<input type="text" id="'.$toolattr{'crslabel'}.'" name="exttoollabel" value="'.$crslabel.'"'.$disabled.' /></span><br />'.
  557:                     '</div>'.
  558:                     '<div id="'.$toolattr{'crstitlediv'}.'" style="'.$titlestyle.'">'.
  559:                     '<span class="'.$class.'">'.&mt('Course title:').'&nbsp;'.
  560:                     '<input type="text" id="'.$toolattr{'crstitle'}.'" name="exttooltitle" value="'.$crstitle.'"'.$disabled.' /></span><br />'.
  561:                     '</div>'.
  562:                     '<div id="'.$toolattr{'crsappenddiv'}.'" style="'.$appendstyle.'">'.
  563:                     '<span class="'.$class.'">'.&mt('Append to URL[_1]',
  564:                     '<span id="'.$toolattr{'providerurl'}.'">&nbsp;('.$providerurl.')<br /></span>').
  565:                     '<input type="text" id="'.$toolattr{'crsappend'}.'" size="30" name="exttoolappend" value="'.$crsappend.'"'.$disabled.' /></span><br />'.
  566:                     '</div>';
  567:     }
  568:     my $chooser = $toolelem;
  569:     if ($type eq 'ext') {
  570:         $chooser = "
  571: <div>
  572: <span$srcclass>
  573: $extsrc
  574: $urlelem
  575: $preview
  576: </span>
  577: </div>
  578: ";
  579:     }
  580:     $form = <<ENDFORM;
  581: <form action="$action" method="post" name="$formname" id="$formid">
  582: <fieldset id="$fieldsetid" style="$fieldsetstyle">
  583: $legend
  584: $active
  585: $chooser
  586: <div>
  587: <span$srcclass>
  588: $title
  589: <input type="text" size="$size" name="exttitle" value="$orig_title" $disabled />
  590: <input type="hidden" name="importdetail" value="" />
  591: $pathitem
  592: $hiddenelem
  593: <input type="button" value="$save" onclick="javascript:setExternal(this.form,'$residx','$type','$orig_url','$supplementalflag');" $disabled />
  594: </span>
  595: </div>
  596: </fieldset>
  597: </form>
  598: ENDFORM
  599:     if (wantarray) {
  600:         return ($link,$form);
  601:     } else {
  602:         return $link.$form;
  603:     }
  604: }
  605: 
  606: sub display_editor {
  607:     my ($url,$folderpath,$symb,$idx,$type,$cdom,$cnum,$hostname) = @_;
  608:     my ($residx,$supplementalflag,$title,$pathitem,$output,$js,$navmap);
  609:     if ($folderpath =~ /^supplemental/) {
  610:         $supplementalflag = 1;
  611:         $residx = $idx;
  612:         $title = &unescape($env{'form.title'});
  613:         $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($folderpath,'<>&"').'" />';
  614:     } elsif ($symb =~ /^uploaded/) {
  615:         (my $map,$residx,my $res) =
  616:             &Apache::lonnet::decode_symb($symb);
  617:         $title = &Apache::lonnet::gettitle($symb);
  618:         my $path = &Apache::loncommon::symb_to_docspath($symb,\$navmap);
  619:         $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($path,'<>&"').'" />';
  620:     }
  621:     my %ltitools;
  622:     if ($type eq 'tool') {
  623:         %ltitools = &Apache::lonnet::get_domain_lti($cdom,'consumer');
  624:     }
  625:     $js = &Apache::lonhtmlcommon::scripttag(&extedit_javascript());
  626:     my $args = { 'force_register' => $env{'form.register'} };
  627:     if ($hostname) {
  628:         $args->{'hostname'} = $hostname;
  629:     }
  630:     my $description = 'External Resource Editor';
  631:     if ($type eq 'tool') {
  632:         $description = 'External Tool Editor';
  633:     }
  634:     return &Apache::loncommon::start_page($description,$js,$args).
  635:            '<div class="LC_left_float">'.
  636:            &extedit_form($supplementalflag,$residx,$url,$title,$pathitem,undef,'direct',
  637:                          $symb,$type,$cdom,$cnum,\%ltitools).
  638:            '</div>'.
  639:            &Apache::loncommon::end_page();
  640: }
  641: 
  642: sub extedit_javascript {
  643:     my ($toolsref) = @_;
  644:     my $toolsjs;
  645:     if (ref($toolsref) eq 'HASH') {
  646:         my $num = scalar(keys(%{$toolsref}));
  647:         $toolsjs = "        var ltitools = new Array($num);\n".
  648:                    "        var ltitoolsUrl = new Array($num);\n".
  649:                    "        var ltitoolsTarget = new Array($num);\n".
  650:                    "        var ltitoolsWidth = new Array($num);\n".
  651:                    "        var ltitoolsHeight = new Array($num);\n".
  652:                    "        var ltitoolsLinkDef = new Array($num);\n".
  653:                    "        var ltitoolsExplainDef = new Array($num);\n".
  654:                    "        var ltitoolsDisplay = new Array($num);\n".
  655:                    "        var ltitoolsLink = new Array($num);\n".
  656:                    "        var ltitoolsExplain = new Array($num);\n".
  657:                    "        var ltitoolsLabel = new Array($num);\n".
  658:                    "        var ltitoolsTitle = new Array($num);\n".
  659:                    "        var ltitoolsAppend = new Array($num);\n";
  660:         my $i = 0;
  661:         foreach my $key (sort { $a <=> $b } keys(%{$toolsref})) {
  662:             if (ref($toolsref->{$key}) eq 'HASH') {
  663:                 if (ref($toolsref->{$key}->{'display'}) eq 'HASH') {
  664:                     my $target = $toolsref->{$key}->{'display'}->{'target'};
  665:                     my $width = $toolsref->{$key}->{'display'}->{'width'};
  666:                     my $height = $toolsref->{$key}->{'display'}->{'height'};
  667:                     my $linkdef = $toolsref->{$key}->{'display'}->{'linktext'};
  668:                     my $explaindef = $toolsref->{$key}->{'display'}->{'explanation'};
  669:                     my $providerurl;
  670:                     if ($toolsref->{$key}->{'url'} =~ m{://}) {
  671:                         (my $prot,my $host,$providerurl) = ($toolsref->{$key}->{'url'} =~ m{^([^/]+)://([^/]+)(|/.+)$});
  672:                     } else {
  673:                         $providerurl = $toolsref->{$key}->{'url'};
  674:                     }
  675:                     $providerurl = &LONCAPA::map::qtunescape($providerurl);
  676:                     $toolsjs .= '        ltitools['.$i.'] = '."'$key';\n".
  677:                                 '        ltitoolsTarget['.$i.'] = '."'$target';\n".
  678:                                 '        ltitoolsWidth['.$i.'] = '."'$width';\n".
  679:                                 '        ltitoolsHeight['.$i.'] = '."'$height';\n".
  680:                                 '        ltitoolsLinkDef['.$i.'] = '."'$linkdef';\n".
  681:                                 '        ltitoolsExplainDef['.$i.'] = '."'$explaindef';\n".
  682:                                 '        ltitoolsUrl['.$i.'] = '."'$providerurl';\n";
  683:                 }
  684:                 if (ref($toolsref->{$key}->{'crsconf'}) eq 'HASH') {
  685:                     my $display = $toolsref->{$key}->{'crsconf'}->{'target'};
  686:                     $toolsjs .= '         ltitoolsDisplay['.$i.'] = '."'$display';\n";
  687:                     my $linktext = $toolsref->{$key}->{'crsconf'}->{'linktext'};
  688:                     $toolsjs .= '         ltitoolsLink['.$i.'] = '."'$linktext';\n";
  689:                     my $explanation = $toolsref->{$key}->{'crsconf'}->{'explanation'};
  690:                     $toolsjs .= '         ltitoolsExplain['.$i.'] = '."'$explanation';\n";
  691:                     my $label = $toolsref->{$key}->{'crsconf'}->{'label'};
  692:                     $toolsjs .= '         ltitoolsLabel['.$i.'] = '."'$label';\n";
  693:                     my $title = $toolsref->{$key}->{'crsconf'}->{'title'};
  694:                     $toolsjs .= '         ltitoolsTitle['.$i.'] = '."'$title';\n";
  695:                     my $append = $toolsref->{$key}->{'crsconf'}->{'append'};
  696:                     $toolsjs .= '         ltitoolsAppend['.$i.'] = '."'$append';\n";
  697:                 }
  698:                 $i++;
  699:             }
  700:         }
  701:     }
  702:     my %js_lt = &Apache::lonlocal::texthash(
  703:         invurl  => 'Invalid URL',
  704:         titbl   => 'Title is blank',
  705:         mixfra  => 'Show preview in pop-up? (http in https page + no framing)',
  706:         mixonly => 'Show preview in pop-up? (http in https page)',
  707:         fraonly => 'Show preview in pop-up? (framing disallowed)',
  708:         nopopup => 'Pop-up blocked',
  709:         nopriv  => 'Insufficient privileges to use preview',
  710:         badurl  => 'URL is not: http://hostname/path or https://hostname/path',
  711:         invtool => 'Please select an external tool',
  712:     );
  713:     &js_escape(\%js_lt);
  714: 
  715:     my $urlregexp = <<'ENDREGEXP';
  716: /^([a-z]([a-z]|\d|\+|-|\.)*):(\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?((\[(|(v[\da-f]{1,}\.(([a-z]|\d|-|\.|_|~)|[!\$&'\(\)\*\+,;=]|:)+))\])|((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=])*)(:\d*)?)(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*|(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)|((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)|((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)){0})(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i
  717: ENDREGEXP
  718: 
  719:     return <<ENDJS;
  720: 
  721: var regexp = $urlregexp;
  722: 
  723: function setExternal(extform,residx,type,exttoolurl,supplementalflag) {
  724:     var title=extform.exttitle.value;
  725:     if (!String.trim) {
  726:         String.prototype.trim = function() {return this.replace(\/^\\s+|\\s+$\/g, "");};    }
  727:     if (title == null || title.trim()=="") {
  728:         alert("$js_lt{'titbl'}");
  729:         extform.exttitle.focus();
  730:         return;
  731:     }
  732:     if (type == 'ext') {
  733:         var url=extform.exturl.value;
  734:         if (!regexp.test(url)) {
  735:             alert("$js_lt{'invurl'}");
  736:             extform.exturl.focus();
  737:             return;
  738:         } else {
  739:             url = escape(url);
  740:             title = escape(title);
  741:             if (residx > 0) {
  742:                eval("extform.importdetail.value=title+'='+url+'='+residx;extform.submit();");
  743:             } else {
  744:                eval("extform.importdetail.value=title+'='+url;extform.submit();");
  745:             }
  746:         }
  747:     } else {
  748:         title = escape(title);
  749:         var info = exttoolurl;
  750:         if (residx == 0) {
  751:             var toolid = parseInt(extform.exttoolid.options[extform.exttoolid.selectedIndex].value);
  752:             if (isNaN(toolid)) {
  753:                 alert("$js_lt{'invtool'}");
  754:                 return;
  755:             }
  756:             info += ':'+toolid;
  757:         }
  758:         var prefix = '';
  759:         if (supplementalflag == 1) {
  760:            prefix = 'supp';
  761:         }
  762:         var dispdiv = prefix+'tooldispdiv';
  763:         var windiv = prefix+'toolwindiv';
  764:         if (residx > 0) {
  765:             dispdiv += '_'+residx;
  766:             windiv += '_'+residx;
  767:         }
  768:         if (document.getElementById(dispdiv)) {
  769:             if (document.getElementById(dispdiv).style.display == 'block') {
  770:                 if (extform.exttooltarget.length) {
  771:                     for (var i=0; i<extform.exttooltarget.length; i++) {
  772:                         if (extform.exttooltarget[i].checked) {
  773:                             if (extform.exttooltarget[i].value == 'window') {
  774:                                 var width = extform.exttoolwidth.value;
  775:                                 width.trim();
  776:                                 var height = extform.exttoolheight.value;
  777:                                 height.trim();
  778:                                 info += ':window:'+width+':'+height;
  779:                             } else if (extform.exttooltarget[i].value == 'tab') {
  780:                                 info += ':tab::';
  781:                             } else {
  782:                                 info += ':iframe::';
  783:                             }
  784:                         }
  785:                     }
  786:                 }
  787:             } else {
  788:                 info += ':::';
  789:             }
  790:         } else {
  791:             info += ':::';
  792:         }
  793:         if (document.getElementById(windiv)) {
  794:             if (document.getElementById(windiv).style.display == 'block') {
  795:                 var linktextdiv = prefix+'toollinktextdiv';
  796:                 var explanationdiv = prefix+'toolexplanationdiv';
  797:                 if (residx > 0) {
  798:                     linktextdiv += '_'+residx;
  799:                     explanationdiv += '_'+residx;
  800:                 }
  801:                 if (document.getElementById(linktextdiv).style.display == 'inline') {
  802:                     var linktext = extform.exttoollinktext.value;
  803:                     linktext.trim();
  804:                     info += ':'+escape(linktext);
  805:                 } else {
  806:                     info += ':';
  807:                 }
  808:                 if (document.getElementById(explanationdiv).style.display == 'inline') {
  809:                     var explaintext = extform.exttoolexplanation.value;
  810:                     explaintext.trim();
  811:                     info += ':'+escape(explaintext);
  812:                 } else {
  813:                     info += ':';
  814:                 }
  815:             } else {
  816:                 info += '::';
  817:             }
  818:         } else {
  819:             info += '::';
  820:         }
  821:         var labelinput = prefix+'toolcrslabel';
  822:         var titleinput = prefix+'toolcrstitle';
  823:         var appendinput = prefix+'toolcrsappend';
  824:         if (residx > 0) {
  825:             labelinput += '_'+residx;
  826:             titleinput += '_'+residx;
  827:             appendinput += '_'+residx;
  828:         }
  829:         if (document.getElementById(labelinput)) {
  830:             var crslabel = document.getElementById(labelinput).value;
  831:             crslabel.trim();
  832:             info += ':'+escape(crslabel);
  833:         } else {
  834:             info += ':';
  835:         } 
  836:         if (document.getElementById(titleinput)) {
  837:             var crstitle = document.getElementById(titleinput).value;
  838:             crstitle.trim();
  839:             info += ':'+escape(crstitle);
  840:         } else {
  841:             info += ':';
  842:         }
  843:         if (document.getElementById(appendinput)) {
  844:             var crsappend = document.getElementById(appendinput).value;
  845:             crsappend.trim();
  846:             info += ':'+escape(crsappend);
  847:         } else {
  848:             info += ':';
  849:         }
  850:         info=escape(info);
  851:         if (residx > 0) {
  852:             eval("extform.importdetail.value=title+'='+info+'='+residx;extform.submit();");
  853:         } else {
  854:             eval("extform.importdetail.value=title+'='+info;extform.submit();");
  855:         }
  856:     }
  857: }
  858: 
  859: function editext(residx,type) {
  860:     if (document.getElementById('upload'+type+residx)) {
  861:         var curr = document.getElementById('upload'+type+residx).style.display;
  862:         if (curr == 'none') {
  863:             disp = 'block';
  864:         } else {
  865:             disp = 'none';
  866:         }
  867:         document.getElementById('upload'+type+residx).style.display=disp;
  868:     }
  869:     resize_scrollbox('contentscroll','1','1');
  870:     return;
  871: }
  872: 
  873: function extUrlPreview(caller,protocol) {
  874:     if (document.getElementById(caller)) {
  875:         var url = document.getElementById(caller).value;
  876:         if (regexp.test(url)) {
  877:             var http_regex = /^http\:\/\//gi;
  878:             var mixed = 0;
  879:             var noiframe = 0;
  880:             var nopriv = 0;
  881:             var badurl = 0;
  882:             var name = "externalpreview";
  883:             if ((protocol == 'https') && (http_regex.test(url))) {
  884:                 mixed = 1;
  885:             }
  886:             var http = new XMLHttpRequest();
  887:             var lcurl = "/adm/exturlcheck";
  888:             var params = "exturl="+url;
  889:             http.open("POST",lcurl, true);
  890:             http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  891:             http.onreadystatechange = function() {
  892:                 if (http.readyState == 4) {
  893:                     if (http.status == 200) {
  894:                         if (http.responseText.length > 0) {
  895:                             if (http.responseText == 1) {
  896:                                 noiframe = 1;
  897:                             } else if (http.responseText == -1) {
  898:                                 nopriv = 1;
  899:                             } else if (http.responseText == 0) {
  900:                                 badurl = 1;
  901:                             }
  902:                         }
  903:                         openPreviewWindow(url,name,noiframe,mixed,nopriv,badurl);
  904:                     }
  905:                 }
  906:             }
  907:             http.send(params);
  908:         } else {
  909:             alert("$js_lt{'invurl'}");
  910:         }
  911:     }
  912: }
  913: 
  914: var previewLCWindow = null;
  915: function openPreviewWindow(url,name,noiframe,mixed,nopriv,badurl) {
  916:     if (previewLCWindow !=null) {
  917:         previewLCWindow.close();
  918:     }
  919:     if (badurl) {
  920:         alert("$js_lt{'badurl'}");
  921:     } else if (nopriv) {
  922:         alert("$js_lt{'nopriv'}");
  923:     } else if ((noiframe == 1) || (mixed == 1)) {
  924:         var encurl = encodeURI(url);
  925:         var msg;
  926:         if (mixed == 1) {
  927:             if (noiframe == 1) {
  928:                 msg = "$js_lt{'mixfra'}";
  929:             } else {
  930:                 msg = "$js_lt{'mixonly'}";
  931:             }
  932:         } else {
  933:             msg = "$js_lt{'fraonly'}";
  934:         }
  935:         if (confirm(msg)) {
  936:             previewLCWindow = window.open(url,name,"height=400,width=500,scrollbars=1,resizable=1,menubar=0,location=1");
  937:             if (previewLCWindow != null) {
  938:                 previewLCWindow.focus();
  939:             } else {
  940:                 alert("$js_lt{'nopopup'}");
  941:             }
  942:         }
  943:     } else {
  944:         openMyModal(url,500,400,'yes');
  945:     }
  946: }
  947: 
  948: function updateExttool(caller,form,supplementalflag) {
  949:     var prefix = '';
  950:     if (supplementalflag == 1) {
  951:         prefix = 'supp';
  952:     }
  953:     dispdiv = prefix+'tooldispdiv';
  954:     dimendiv = prefix+'tooldimendiv';
  955:     widthinput = prefix+'tooldimenwidth';
  956:     heightinput = prefix+'tooldimenheight';
  957:     labeldiv = prefix+'toolcrslabeldiv';
  958:     titlediv = prefix+'toolcrstitlediv';
  959:     appenddiv = prefix+'toolcrsappenddiv';
  960:     providerurl = prefix+'toolproviderurl';
  961:     labelinput = prefix+'toolcrslabel';
  962:     titleinput = prefix+'toolcrstitle';
  963:     appendinput = prefix+'toolcrsappend';
  964:     windiv = prefix+'toolwindiv';  
  965:     linktextdiv = prefix+'toollinktextdiv';
  966:     linktextinput = prefix+'toollinktext';
  967:     explanationdiv = prefix+'toolexplanationdiv';
  968:     explanationinput = prefix+'toolexplanation';
  969:     if (document.getElementById(dispdiv)) {
  970:         var toolpick = caller.options[caller.selectedIndex].value;
  971:         $toolsjs
  972:         if (toolpick == '') {
  973:             if (document.getElementById(dispdiv)) {
  974:                 document.getElementById(dispdiv).style.display = 'none';    
  975:             }
  976:             if (document.getElementById(dimendiv)) {
  977:                 document.getElementById(dimendiv).style.display = 'none';
  978:             }
  979:             if (document.getElementById(windiv)) {
  980:                 document.getElementById(windiv).style.display = 'none';
  981:             }
  982:             if (document.getElementById(linktextdiv)) {
  983:                 document.getElementById(linktextdiv).style.display = 'none';
  984:             }
  985:             if (document.getElementById(explanationdiv)) {
  986:                 document.getElementById(explanationdiv).style.display = 'none';
  987:             }
  988:             if (document.getElementById(labeldiv)) {
  989:                 document.getElementById(labeldiv).style.display = 'none';
  990:             }
  991:             if (document.getElementById(titlediv)) {
  992:                 document.getElementById(titlediv).style.display = 'none';
  993:             }
  994:             if (document.getElementById(appenddiv)) {
  995:                 document.getElementById(appenddiv).style.display = 'none';
  996:             }
  997:         } else {
  998:             if (ltitools.length > 0) {
  999:                 for (var j=0; j<ltitools.length; j++) {
 1000:                     if (ltitools[j] == toolpick) {
 1001:                         if (document.getElementById(dispdiv)) {
 1002:                             if (ltitoolsDisplay[j]) {
 1003:                                 document.getElementById(dispdiv).style.display = 'block';
 1004:                                 if (form.exttooltarget.length) {
 1005:                                     for (var k=0; k<form.exttooltarget.length; k++) {
 1006:                                         if (form.exttooltarget[k].value == ltitoolsTarget[j]) {
 1007:                                             form.exttooltarget[k].checked = true;
 1008:                                             break;
 1009:                                         }
 1010:                                     }
 1011:                                 }
 1012:                             }
 1013:                             var dimen = 'none';
 1014:                             var dimenwidth = '';
 1015:                             var dimenheight = '';
 1016:                             if ((ltitoolsDisplay[j]) && (ltitoolsTarget[j] == 'window')) {
 1017:                                 dimen = 'block';
 1018:                                 dimenwidth = ltitoolsWidth[j];
 1019:                                 dimenheight = ltitoolsHeight[j];                    
 1020:                             }
 1021:                             if (document.getElementById(dimendiv)) {
 1022:                                 document.getElementById(dimendiv).style.display = dimen;
 1023:                             }
 1024:                             if (document.getElementById(widthinput)) {
 1025:                                 document.getElementById(widthinput).value = dimenwidth;
 1026:                             }
 1027:                             if (document.getElementById(heightinput)) {
 1028:                                 document.getElementById(heightinput).value = dimenheight;
 1029:                             }
 1030:                         }
 1031:                         if (document.getElementById(windiv)) {
 1032:                             if ((ltitoolsTarget[j] == 'window') || (ltitoolsTarget[j] == 'tab')) {
 1033:                                 document.getElementById(windiv).style.display = 'block';
 1034:                             } else {
 1035:                                 document.getElementById(windiv).style.display = 'none';
 1036:                             }
 1037:                             if (document.getElementById(linktextdiv)) {
 1038:                                 if (ltitoolsLink[j]) {
 1039:                                     document.getElementById(linktextdiv).style.display = 'inline';
 1040:                                 } else {
 1041:                                     document.getElementById(linktextdiv).style.display = 'none';
 1042:                                 }
 1043:                             }
 1044:                             if (document.getElementById(linktextinput)) {
 1045:                                 if (ltitoolsLink[j]) {
 1046:                                     document.getElementById(linktextinput).value = ltitoolsLinkDef[j]; 
 1047:                                 } else {
 1048:                                     document.getElementById(linktextinput).value = '';
 1049:                                 }
 1050:                             }
 1051:                             if (document.getElementById(explanationdiv)) {
 1052:                                 if (ltitoolsExplain[j]) {
 1053:                                     document.getElementById(explanationdiv).style.display = 'inline';
 1054:                                 } else {
 1055:                                     document.getElementById(explanationdiv).style.display = 'none';
 1056:                                 }
 1057:                             }
 1058:                             if (document.getElementById(explanationinput)) {
 1059:                                 if (ltitoolsExplain[j]) {
 1060:                                     document.getElementById(explanationinput).value = ltitoolsExplainDef[j];
 1061:                                 } else {
 1062:                                     document.getElementById(explananationinput).value = '';
 1063:                                 }
 1064:                             }
 1065:                         }
 1066:                         if (document.getElementById(labeldiv)) {
 1067:                             if (ltitoolsLabel[j]) {
 1068:                                 document.getElementById(labeldiv).style.display = 'inline';
 1069:                             } else {
 1070:                                 document.getElementById(labeldiv).style.display = 'none';
 1071:                             } 
 1072:                         }
 1073:                         if (document.getElementById(titlediv)) {
 1074:                             if (ltitoolsTitle[j]) {
 1075:                                 document.getElementById(titlediv).style.display = 'inline';
 1076:                             } else {
 1077:                                 document.getElementById(titlediv).style.display = 'none';
 1078:                             }
 1079:                         }
 1080:                         if (document.getElementById(appenddiv)) {
 1081:                             if (ltitoolsAppend[j]) {
 1082:                                 document.getElementById(appenddiv).style.display = 'inline';
 1083:                                 if (document.getElementById(providerurl)) {
 1084:                                     if ((ltitoolsUrl[j] != '') && (ltitoolsUrl[j] != null)) {
 1085:                                         document.getElementById(providerurl).innerHTML = '&nbsp;('+ltitoolsUrl[j]+')<br />';
 1086:                                     }
 1087:                                 }
 1088:                             } else {
 1089:                                 document.getElementById(appenddiv).style.display = 'none';
 1090:                                 if (document.getElementById(providerurl)) {
 1091:                                     document.getElementById(providerurl).innerHTML = '';
 1092:                                 }
 1093:                             }
 1094:                         }
 1095:                         break;
 1096:                     }
 1097:                 }
 1098:             }
 1099:         }
 1100:     }
 1101: }
 1102: 
 1103: function updateTooldim(form,dimendiv,windiv,widthinput,heightinput,linkinput,explaininput) {
 1104:     if (form.exttooltarget.length) {
 1105:         for (var i=0; i<form.exttooltarget.length; i++) {
 1106:             if (form.exttooltarget[i].checked) {
 1107:                 var dimen = 'none';
 1108:                 var linkconf = 'none';
 1109:                 if (form.exttooltarget[i].value == 'window') {
 1110:                     dimen = 'block';
 1111:                     linkconf = 'block';
 1112:                 } else {
 1113:                     if (form.exttooltarget[i].value == 'tab') {
 1114:                         linkconf = 'block';
 1115:                     } else {
 1116:                         if (document.getElementById(widthinput)) {
 1117:                             document.getElementById(widthinput).value = '';
 1118:                         }
 1119:                         if (document.getElementById(heightinput)) {
 1120:                             document.getElementById(heightinput).value = '';
 1121:                         }
 1122:                         if (document.getElementById(linkinput)) {
 1123:                             document.getElementById(linkinput).value = '';
 1124:                         }
 1125:                         if (document.getElementById(explaininput)) {
 1126:                             document.getElementById(explaininput).value = '';
 1127:                         }
 1128:                     }
 1129:                 }
 1130:                 if (document.getElementById(dimendiv)) {
 1131:                     document.getElementById(dimendiv).style.display = dimen;
 1132:                 }
 1133:                 if (document.getElementById(windiv)) {
 1134:                     document.getElementById(windiv).style.display = linkconf;
 1135:                 }
 1136:                 break;
 1137:             }
 1138:         }
 1139:     }
 1140: }
 1141: 
 1142: ENDJS
 1143: 
 1144: }
 1145: 
 1146: 1;

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