Return to lonextresedit.pm CVS log

Up to [LON-CAPA] / loncom / interface

- lonextresedit:::extedit_form() can return array or scalar.
- Edit form for "External Resource" below content item, instead of edit link.
- separate rename link not needed for "External Resource" items

    1: # The LearningOnline Network
    2: # Documents
    3: #
    4: # $Id: lonextresedit.pm,v 1.3 2012/12/02 22:40:09 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,$title,$symb);
   60:     if ((($env{'form.folderpath'} =~ /^supplemental/) && ($env{'form.suppurl'})) ||
   61:         ($env{'form.symb'} =~ /^uploaded/)) {
   62:         $supplementalflag = 1;        
   63:         ($updated,$output,$errormsg,$residx,$url,$title,$symb) = 
   64:             &process_changes($supplementalflag,$cdom,$cnum,$chome);
   65:         if ($supplementalflag) {
   66:             if ($url ne $env{'form.suppurl'}) {
   67:                  $env{'form.suppurl'} = $url;
   68:             }
   69:             if ($title ne $env{'form.title'}) {
   70:                 $env{'form.title'} = $title;
   71:             }
   72:         } else {
   73:             if ($symb ne $env{'form.symb'}) {
   74:                 $env{'form.symb'} = $symb;
   75:             }
   76:         }
   77:     } else {
   78:         $errormsg = &mt('Information about external resource to edit is missing.');
   79:     }
   80:     if ($updated) {
   81:         $output = &Apache::lonhtmlcommon::confirm_success(&mt('External Resource updated'));
   82:     }
   83:     if ($errormsg) {
   84:         $errormsg = '<p class="LC_error">'.$errormsg.'</p>';
   85:     }
   86:     my $js = &Apache::lonhtmlcommon::scripttag(&extedit_javascript());
   87:     my $pathitem = '<input type="hidden" name="folderpath" value="'.
   88:                    &HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />';
   89:     $r->print(&Apache::loncommon::start_page('External Resource Editor',$js).
   90:               '<div class="LC_left_float">'.
   91:               $output.
   92:               $errormsg.
   93:               &extedit_form($supplementalflag,$residx,$url,$title,$pathitem,undef,
   94:                            'direct',$env{'form.symb'}).
   95:               '</div>'.&Apache::loncommon::end_page());
   96:     return OK;
   97: }
   98: 
   99: sub process_changes {
  100:     my ($supplementalflag,$cdom,$cnum,$chome) = @_;
  101:     my ($folder,$container,$output,$errormsg,$updated,$symb,$oldidx,$oldurl,
  102:         $oldtitle,$residx,$newurl,$newtitle);
  103:     if ($env{'form.symb'}) {
  104:         $symb = $env{'form.symb'};
  105:         (my $map,$oldidx,my $url)=&Apache::lonnet::decode_symb($symb);
  106:         if ($map =~ m{^uploaded/$cdom/$cnum/(default(_\d+|))\.(sequence|page)$}) {
  107:             $folder = $1;
  108:             $container = $3;
  109:         }
  110:         if ($url =~ m{^ext/(.+)$}) {
  111:             $oldurl = $1;
  112:             if ($oldurl !~ m{^https://}) {
  113:                 $oldurl = 'http://'.$oldurl;
  114:             }
  115:         }
  116:         $oldtitle = &Apache::lonnet::gettitle($env{'form.symb'});
  117:     } elsif ($env{'form.folderpath'}) {
  118:         $folder = &unescape( (split('&',$env{'form.folderpath'}))[-2] );
  119:         $oldurl = &unescape($env{'form.suppurl'});
  120:         $oldtitle = &unescape($env{'form.title'});
  121:         $container = 'sequence';
  122:         $supplementalflag = 1;
  123:     }
  124:     if ($folder && $container) {
  125:         if ($env{'form.importdetail'}) {
  126:             my ($errtext,$fatal,$mismatchedid);
  127:             ($newtitle,$newurl, $residx) =
  128:                 map {&unescape($_)} split(/\=/,$env{'form.importdetail'});
  129:             if (!$supplementalflag && $oldidx) {
  130:                if ($oldidx != $residx) {
  131:                    $mismatchedid = 1;
  132:                    $residx = $oldidx;
  133:                }
  134:             }
  135:             my @imports;
  136:             if ($mismatchedid) {
  137:                 $errormsg = 'Wrong item identifier';
  138:             } elsif (($newtitle eq $oldtitle) && ($newurl eq $oldurl)) {
  139:                 $output = &mt('No change');
  140:             } else {
  141:                 my $map = "/uploaded/$cdom/$cnum/$folder.$container";
  142:                 my ($errtext,$fatal) = &LONCAPA::map::mapread($map);
  143:                 if ($fatal) {
  144:                     $errormsg = &mt('Update failed: [_1].',$errtext);
  145:                 } else {
  146:                     my $saveurl = &LONCAPA::map::qtunescape($newurl);
  147:                     my $savetitle = &LONCAPA::map::qtunescape($newtitle);
  148:                     $LONCAPA::map::resources[$residx] =
  149:                         join(':', ($savetitle,$saveurl,'true','normal','res'));
  150:                     my ($outtext,$errtext) = &LONCAPA::map::storemap($map,1);
  151:                     if ($errtext) {
  152:                         $errormsg = &mt('Update failed: [_1].',$errtext);
  153:                     } else {
  154:                         $updated = 1;
  155:                         if (!$supplementalflag) {
  156:                             if ($newurl ne $oldurl) {
  157:                                 $symb = &Apache::lonnet::encode_symb($map,$residx,"ext/$newurl");
  158:                             } else {
  159:                                 $symb = $env{'form.symb'};
  160:                                 if ($symb) {
  161:                                     &Apache::lonnet::devalidate_title_cache($symb);
  162:                                 }
  163:                             }
  164:                         }
  165:                         my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum");
  166:                         if ($ferr) {
  167:                             $errormsg = &mt('Reload failed: [_1].',$ferr);
  168:                         } else {
  169:                             &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
  170:                                                                            $cdom.'_'.$cnum);
  171:                         }
  172:                     }
  173:                 }
  174:             }
  175:         } else {
  176:             $output = &mt('No change');
  177:         }
  178:     } else {
  179:         $errormsg = &mt('Information about current external resource is incomplete.');
  180:     }
  181:     if ($updated) {
  182:         return ($updated,$output,$errormsg,$residx,$newurl,$newtitle,$symb);
  183:     } else {
  184:         return ($updated,$output,$errormsg,$residx,$oldurl,$oldtitle,$symb);
  185:     }
  186: }
  187: 
  188: sub extedit_form {
  189:     my ($supplementalflag,$residx,$orig_url,$orig_title,$pathitem,$helpitem,$caller,$symb) = @_;
  190:     my %lt = &Apache::lonlocal::texthash(
  191:         ex => 'External Resource',
  192:         ed => 'Edit',
  193:         ee => 'External Resource Editor',
  194:         pr => 'Preview',
  195:         sv => 'Save',
  196:         ul => 'URL',
  197:         ti => 'Title',
  198:         al => 'Add Link',
  199:     );
  200:     my $formname = 'newext';
  201:     my $tabid = 'aa';
  202:     my $toggle = 'ext';
  203:     my $fieldsetid = 'uploadextform';
  204:     my $urlid = 'exturl';
  205:     my $size = 60;
  206:     if ($supplementalflag) {
  207:         $formname = 'newsuppext';
  208:         $tabid = 'ee';
  209:         $toggle = 'suppext';
  210:         $fieldsetid = 'uploadsuppextform';
  211:         $urlid = 'suppexturl';
  212:     }
  213:     my ($link,$legend,$active,$srcclass,$extsrc,$preview,$title,$save,
  214:         $fieldsetstyle,$action,$hiddenelem,$form);
  215:     $fieldsetstyle = 'display: none;';
  216:     $action = '/adm/coursedocs';
  217:     if ($residx) {
  218:         if ($caller eq 'direct') {
  219:             $fieldsetstyle = 'display: block;';
  220:             $action = '/adm/extresedit';
  221:             $legend = "<legend>$lt{'ee'}</legend>";
  222:             if ($symb) {
  223:                 $hiddenelem = '<input type="hidden" name="symb" value="'.$symb.'" />';
  224:             } elsif ($supplementalflag) {
  225:                 $hiddenelem = '<input type="hidden" name="suppurl" value="'.
  226:                               &HTML::Entities::encode(&escape($orig_url),'<>&"').'" />'."\n".
  227:                               '<input type="hidden" name="title" value="'.
  228:                               &HTML::Entities::encode(&escape($orig_title),'<>&"').'" />';
  229:             }
  230:         } else {        
  231:             $link = '<a class="LC_docs_ext_edit" href="javascript:editext('."'$residx'".');">'.$lt{'ed'}.'</a>&nbsp;'."\n";
  232:             $size = 40;
  233:             $active = '<input type="hidden" name="active" value="'.$tabid.'" />';
  234:         }
  235:         $formname = "editext_$residx";
  236:         $fieldsetid = "uploadext$residx";
  237:         $urlid = "exturl_$residx";
  238:         $srcclass = ' class="LC_nobreak"';
  239:         $extsrc = '<span class="LC_docs_ext_edit">'.$lt{'ul'}.'&nbsp;</span>';
  240:         $preview = '&nbsp;<a class="LC_docs_ext_edit" href="javascript:extUrlPreview('."'$urlid'".');">'.$lt{'pr'}.'</a>';
  241:         $title = '<span class="LC_docs_ext_edit">'.$lt{'ti'}.'&nbsp;</span>';
  242:         $save = $lt{'sv'};
  243:     } else {
  244:         $link = '<a class="LC_menubuttons_link" href="javascript:toggleUpload('."'$toggle'".');">'.$lt{'ex'}.'</a>'.$helpitem;
  245:         $legend = "<legend>$lt{'ex'}</legend>";
  246:         $extsrc = $lt{'ul'}.':<br />';
  247:         $title = $lt{'ti'}.':<br />';
  248:         $residx = 0;
  249:         $orig_url = 'http://';
  250:         $orig_title = $lt{'ex'};
  251:         $preview = '<input type="button" name="view" value="'.$lt{'pr'}.'" onclick="javascript:extUrlPreview('."'$urlid'".');" />';
  252:         $save = $lt{'al'};
  253:         $pathitem .= '<br />';
  254:     }
  255:     $form = <<ENDFORM;
  256: <form action="$action" method="post" name="$formname">
  257: <fieldset id="$fieldsetid" style="$fieldsetstyle">
  258: $legend
  259: $active
  260: <span$srcclass>
  261: $extsrc
  262: <input type="text" size="$size" name="exturl" id="$urlid" value="$orig_url" />
  263: $preview
  264: </span> 
  265: <br />
  266: <span$srcclass>
  267: $title
  268: <input type="text" size="$size" name="exttitle" value="$orig_title" />
  269: <input type="hidden" name="importdetail" value="" />
  270: $pathitem
  271: $hiddenelem
  272: <input type="button" value="$save" onclick="javascript:setExternal(this.form,'$residx');" />
  273: </span>
  274: </fieldset>
  275: </form>
  276: ENDFORM
  277:     if (wantarray) {
  278:         return ($link,$form);
  279:     } else {
  280:         return $link.$form;
  281:     }
  282: }
  283: 
  284: sub display_editor {
  285:     my ($url,$folderpath,$symb,$idx) = @_;
  286:     my ($residx,$supplementalflag,$title,$pathitem,$output);
  287:     if ($folderpath =~ /^supplemental/) {
  288:         $supplementalflag = 1;
  289:         $residx = $idx;
  290:         $title = &unescape($env{'form.title'});
  291:         $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($folderpath,'<>&"').'" />';
  292:     } elsif ($symb =~ /^uploaded/) {
  293:         (my $map,$residx,my $res) =
  294:             &Apache::lonnet::decode_symb($symb);
  295:         $title = &Apache::lonnet::gettitle($symb);
  296:         my $path = &Apache::lonnet::getdocspath($symb);
  297:         if ($map =~ /\.page$/) {
  298:             $pathitem = '<input type="hidden" name="pagepath" value="'.&HTML::Entities::encode($path,'<>&"').'" />';
  299:         } else {
  300:             $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($path,'<>&"').'" />';
  301:         }
  302:     }
  303:     my $js = &Apache::lonhtmlcommon::scripttag(&extedit_javascript());
  304:     my $args = { 'force_register' => $env{'form.register'} };
  305:     return &Apache::loncommon::start_page('External Resource Editor',$js,$args).
  306:            '<div class="LC_left_float">'.
  307:            &extedit_form($supplementalflag,$residx,$url,$title,$pathitem,undef,'direct',$symb).
  308:            '</div>'.
  309:            &Apache::loncommon::end_page();
  310: }
  311: 
  312: sub extedit_javascript {
  313:     my %lt = &Apache::lonlocal::texthash(
  314:         invurl  => 'Invalid URL',
  315:         titbl   => 'Title is blank',
  316:     );
  317: 
  318:     my $urlregexp = <<'ENDREGEXP';
  319: /^([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
  320: ENDREGEXP
  321: 
  322:     return <<ENDJS;
  323: 
  324: var regexp = $urlregexp;
  325: 
  326: function setExternal(extform,residx) {
  327:     var title=extform.exttitle.value;
  328:     if (!String.trim) {
  329:         String.prototype.trim = function() {return this.replace(\/^\\s+|\\s+$\/g, "");};    }
  330:     var url=extform.exturl.value;
  331:     if (title == null || title.trim()=="") {
  332:         alert("$lt{'titbl'}");
  333:         extform.exttitle.focus();
  334:         return;
  335:     }
  336:     if (regexp.test(url)) {
  337:         url = escape(url);
  338:         if (residx > 0) {
  339:             eval("extform.importdetail.value=title+'='+url+'='+residx;extform.submit();");
  340:         } else {
  341:             eval("extform.importdetail.value=title+'='+url;extform.submit();");
  342:         }
  343:     } else {
  344:         alert("$lt{'invurl'}");
  345:         extform.exturl.focus();
  346:         return;
  347:     }
  348: }
  349: 
  350: function editext(residx) {
  351:     if (document.getElementById('uploadext'+residx)) {
  352:         var curr = document.getElementById('uploadext'+residx).style.display;
  353:         if (curr == 'none') {
  354:             disp = 'block';
  355:         } else {
  356:             disp = 'none';
  357:         }
  358:         document.getElementById('uploadext'+residx).style.display=disp;
  359:     }
  360:     resize_scrollbox('contentscroll','1','1');
  361:     return;
  362: }
  363: 
  364: function extUrlPreview(caller) {
  365:     if (document.getElementById(caller)) {
  366:         var url = document.getElementById(caller).value;
  367:         if (regexp.test(url)) {
  368:             openMyModal(url,500,400,'yes');
  369:         } else {
  370:             alert("$lt{'invurl'}");
  371:         }
  372:     }
  373: }
  374: 
  375: ENDJS
  376: 
  377: }
  378: 
  379: 1;