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Diff for /loncom/homework/structuretags.pm between versions 1.444.4.3 and 1.513

version 1.444.4.3, 2010/01/28 18:15:51 version 1.513, 2013/06/04 22:20:24
Line 61  use Apache::lonlocal; Line 61  use Apache::lonlocal;
 use Apache::lonxml;  use Apache::lonxml;
 use Apache::londefdef;  use Apache::londefdef;
 use Apache::lonenc();  use Apache::lonenc();
   use Apache::loncommon();
 use Time::HiRes qw( gettimeofday tv_interval );  use Time::HiRes qw( gettimeofday tv_interval );
 use lib '/home/httpd/lib/perl/';  use lib '/home/httpd/lib/perl/';
 use LONCAPA;  use LONCAPA;
     
 BEGIN {  BEGIN {
     &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));      &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
 }  }
   
   
   #---------------------------------------------------------------------------------
   # 
   #  This section of code deals with hyphenation management.
   #  We must do three things:
   #  - keep track fo the desired languages to alter the header.
   #  - provide hyphenation selection as needed by each language that appears in the
   #    text.
   #  - Provide the header text needed to make available the desired hyphenations.
   #
   #
   
   # Hash whose keys are the languages encountered in the document/resource.
   #
   
   my %languages_required;
   ##
   #   Given a language selection as input returns a chunk of LaTeX that
   #   selects the required hyphenator.
   #
   #  @param language - the language being selected.
   #  @return string
   #  @retval The LaTeX needed to select the hyphenation appropriate to the language. 
   #   
   sub select_hyphenation {
       my $language  = shift;
   
       $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
   
       # If there is no latex language there's not much we can do:
   
       if ($language) {
    &require_language($language);
    my $babel_hyphenation = "\\selectlanguage{$language}";
   
    return $babel_hyphenation;
       } else {
    return '';
       }
   }
   ##
   # Selects hyphenation based on the current problem metadata.
   # This requires that
   # - There is a language metadata item set for the problem.
   # - The language has a latex/babel hyphenation.
   #
   # @note: Uses &Apache::lonxml::request to locate the Uri associated with
   #        this problem.
   # @return string (possibly empty).
   # @retval If not empty an appropriate \selectlanguage{} directive.
   #
   sub select_metadata_hyphenation {
       my $uri      = $Apache::lonxml::request->uri;
       my $language = &Apache::lonnet::metadata($uri, 'language'); 
       my $latex_language = &Apache::loncommon::latexhyphenation($language);
       if ($latex_language) {
    return '\selectlanguage{'.$latex_language."}\n";
       }
       return ''; # no latex hyphenation or no lang metadata.
   }
   
   
   ##
   #  Clears the set of languages required by the document being rendered.
   #
   sub clear_required_languages {
       %languages_required = ();
   }
   ##
   # Allows an external client of this module to register a need for a language:
   #
   # @param LaTeX language required:
   #
   sub require_language {
       my $language = shift;
       $languages_required{$language} = 1;
   }
   
   ##
   # Provides the header for babel that indicates the languages
   # the document requires.
   # @return string
   # @retval \usepackage[lang1,lang2...]{babel}
   # @retval ''   if there are no languages_required.
   sub languages_header {
       my $header    ='';
       my @languages = (keys(%languages_required));
   
       # Only generate the header if there are languages:
   
       if (scalar @languages) {
    my $language_list = join(',', (@languages));
    $header  = '\usepackage['.$language_list."]{babel}\n";
       }
       return $header;
   }
   
   #----------------------------------------------------------------------------------
   
 sub start_web {  sub start_web {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if ($target ne 'edit' && $target ne 'modified') {      if ($target ne 'edit' && $target ne 'modified') {
Line 128  sub homework_js { Line 228  sub homework_js {
            &setmode_javascript().             &setmode_javascript().
  <<'JS';   <<'JS';
 <script type="text/javascript">  <script type="text/javascript">
 function setSubmittedPart (part) {  // <![CDATA[
    this.document.lonhomework.submitted.value="part_"+part;  function setSubmittedPart (part,prefix) {
       if (typeof(prefix) == 'undefined') {
           this.document.lonhomework.submitted.value="part_"+part;
       } else {
           for (var i=0;i<this.document.lonhomework.elements.length;i++) {
               if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
                   this.document.lonhomework.elements[i].value="part_"+part;
               }
           }
       }
 }  }
   
 function image_response_click (which, e) {  function image_response_click (which, e) {
Line 145  function image_response_click (which, e) Line 254  function image_response_click (which, e)
     input_element.value = click;      input_element.value = click;
     img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;      img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
 }  }
   // ]]>
 </script>  </script>
 JS  JS
 }  }
Line 153  JS Line 262  JS
 sub setmode_javascript {  sub setmode_javascript {
     return <<"ENDSCRIPT";      return <<"ENDSCRIPT";
 <script type="text/javascript">  <script type="text/javascript">
   // <![CDATA[
 function setmode(form,probmode) {  function setmode(form,probmode) {
     form.problemmode.value = probmode;      form.problemmode.value = probmode;
     form.submit();      form.submit();
 }  }
   // ]]>
 </script>  </script>
 ENDSCRIPT  ENDSCRIPT
 }  }
Line 177  sub page_start { Line 288  sub page_start {
    $parstack,$parser,$safeeval);     $parstack,$parser,$safeeval);
     }      }
   
     $extra_head .= &homework_js();      $extra_head .= &homework_js().
                      &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
     if ($env{'environment.wysiwygeditor'} eq 'on') {      if (&Apache::lonhtmlcommon::htmlareabrowser()) {
  $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");          my %textarea_args = (
                                   dragmath => 'math',
                                 );
           $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
       }
       my $is_task = ($env{'request.uri'} =~ /\.task$/);
       my $needs_upload;
       my ($symb)= &Apache::lonnet::whichuser();
       my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
       if ($is_task) {
           $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
     } else {      } else {
         $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");          if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
               unless ($env{'request.state'} eq 'construct') {
                   my $navmap = Apache::lonnavmaps::navmap->new();
                   if (ref($navmap)) {
                       my $mapres = $navmap->getResourceByUrl($map);
                       my $is_page;
                       if (ref($mapres)) {
                           $is_page = $mapres->is_page();
                       }
                       unless ($is_page) {
                           $needs_upload = 1;
                       }
                   }
               }
           } else {
               unless ($env{'request.state'} eq 'construct') {
                   my $navmap = Apache::lonnavmaps::navmap->new();
                   if (ref($navmap)) {
                       my $mapres = $navmap->getResourceByUrl($map);
                       my $is_page;
                       if (ref($mapres)) {
                           $is_page = $mapres->is_page();
                       }
                       unless ($is_page) {
                           my $res = $navmap->getBySymb($symb);
                           if (ref($res)) {
                               my $partlist = $res->parts();
                               if (ref($partlist) eq 'ARRAY') {
                                   foreach my $part (@{$partlist}) {
                                       my @types = $res->responseType($part);
                                       my @ids = $res->responseIds($part);
                                       for (my $i=0; $i < scalar(@ids); $i++) {
                                           if ($types[$i] eq 'essay') {
                                               my $partid = $part.'_'.$ids[$i];
                                               if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
                                                   $needs_upload = 1;
                                                   last;
                                               }
                                           }
                                       }
                                   }
                               } 
                           }
                       }
                   }
               }
           }
           if ($needs_upload) {
               $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
           }
     }      }
   
     my %body_args;      my %body_args;
Line 203  sub page_start { Line 373  sub page_start {
  }   }
     }      }
   
       my $pageheader = '';
     if (defined($found{'body'})) {      if (defined($found{'body'})) {
  $body_args{'skip_phases'}{'body'}=1;   $body_args{'skip_phases'}{'body'}=1;
     } elsif (!defined($found{'body'})       } elsif (!defined($found{'body'}) 
      && $env{'request.state'} eq 'construct') {       && $env{'request.state'} eq 'construct') {
  if ($target eq 'web' || $target eq 'edit') {   if ($target eq 'web' || $target eq 'edit') {
     if ($env{'environment.remote'} ne 'off') {          # Breadcrumbs for Authoring Space
  $body_args{'only_body'}  = 1;          &Apache::lonhtmlcommon::clear_breadcrumbs();
     }          &Apache::lonhtmlcommon::add_breadcrumb({
               'text'  => 'Authoring Space',
               'href'  => &Apache::loncommon::authorspace($env{'request.uri'}),
           });
           # breadcrumbs (and tools) will be created 
           # in start_page->bodytag->innerregister
   
   # FIXME Where are we?
   #        &Apache::lonhtmlcommon::add_breadcrumb({
   #            'text'  => 'Problem Editing', # 'Problem Testing'
   #            'href'  => '',
   #        });
           $pageheader =&Apache::loncommon::head_subbox(
                   &Apache::loncommon::CSTR_pageheader());
  }   }
     } elsif (!defined($found{'body'})) {      } elsif (!defined($found{'body'})) {
  my %add_entries;   my %add_entries;
Line 222  sub page_start { Line 406  sub page_start {
   
  my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,   my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
        $safeeval);         $safeeval);
         if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }          if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
   
  $body_args{'bgcolor'}        = $bgcolor;          $body_args{'bgcolor'}        = $bgcolor;
  $body_args{'no_title'}       = 1;          # $body_args{'no_title'}       = 1;
  $body_args{'force_register'} = 1;          $body_args{'force_register'} = 1;
  $body_args{'add_entries'}    = \%add_entries;          $body_args{'add_entries'}    = \%add_entries;
  if ($env{'environment.remote'} eq 'off'          if ( $env{'request.state'} eq   'construct') {
     && $env{'request.state'} eq   'construct') {              $body_args{'only_body'}  = 1;
     $body_args{'only_body'}  = 1;          }
  }  
     }      }
     $body_args{'no_auto_mt_title'} = 1;      $body_args{'no_auto_mt_title'} = 1;
     my $page_start = &Apache::loncommon::start_page($name,$extra_head,      my $page_start = &Apache::loncommon::start_page($name,$extra_head,
     \%body_args);      \%body_args);
       $page_start .= $pageheader;
     if (!defined($found{'body'})       if (!defined($found{'body'}) 
  && $env{'request.state'} ne 'construct'   && $env{'request.state'} ne 'construct'
  && ($target eq 'web' || $target eq 'webgrade')) {   && ($target eq 'web' || $target eq 'webgrade')) {
   
  my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();   my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
  if ($symb eq '' && !$publicuser) {          if ($symb eq '' && !$publicuser) {
             $page_start .= '<p class="LC_info">'              $page_start .= '<p class="LC_info">'
                           .&mt('Browsing resource, all submissions are temporary.')                            .&mt('Browsing resource, all submissions are temporary.')
                           .'</p>';                            .'</p>';
Line 252  sub page_start { Line 435  sub page_start {
     if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {      if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
  $page_start .= &Apache::lonxml::message_location();   $page_start .= &Apache::lonxml::message_location();
     }      }
       
     my $form_tag_start;      my $form_tag_start;
     if (!defined($found{'form'})) {      if (!defined($found{'form'})) {
  $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';   $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
  my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});   my $uri = &Apache::loncommon::inhibit_menu_check(
                   &Apache::lonenc::check_encrypt($env{'request.uri'}));
           $uri = &HTML::Entities::encode($uri,'<>&"');
  $form_tag_start.=$uri.'" ';   $form_tag_start.=$uri.'" ';
  if ($target eq 'edit') {   if ($target eq 'edit') {
     $form_tag_start.=&Apache::edit::form_change_detection();      $form_tag_start.=&Apache::edit::form_change_detection();
  }   }
           my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
           my ($path,$multiresp) = 
               &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
           if (($is_task) || ($needs_upload)) {
               $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
           }
  $form_tag_start.='>'."\n";   $form_tag_start.='>'."\n";
   
  my $symb=&Apache::lonnet::symbread();  
  if ($symb =~ /\S/) {   if ($symb =~ /\S/) {
     $symb=      $symb=
  &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));   &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
Line 302  sub get_resource_name { Line 491  sub get_resource_name {
 }  }
   
 sub setup_rndseed {  sub setup_rndseed {
     my ($safeeval)=@_;      my ($safeeval,$target)=@_;
     my $rndseed;  
     my ($symb)=&Apache::lonnet::whichuser();      my ($symb)=&Apache::lonnet::whichuser();
       my ($questiontype,$set_safespace,$rndseed);
       if ($target eq 'analyze') {
           $questiontype = $env{'form.grade_questiontype'};
       }
       unless (defined($questiontype)) {
           $questiontype = $Apache::lonhomework::type;
       }
     if ($env{'request.state'} eq "construct"       if ($env{'request.state'} eq "construct" 
  || $symb eq ''    || $symb eq '' 
  || $Apache::lonhomework::type eq 'practice'   || $Apache::lonhomework::type eq 'practice'
Line 319  sub setup_rndseed { Line 514  sub setup_rndseed {
     }      }
     $env{'form.rndseed'}=$rndseed;      $env{'form.rndseed'}=$rndseed;
  }   }
           if (($env{'request.state'} eq "construct") && 
               ($Apache::lonhomework::type eq 'randomizetry')) {
               my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
               if ($tries) {
                   $rndseed += $tries;
               }
               $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
           }
  if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')   if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
       && $env{'form.submitted'} eq 'yes')  ||        && $env{'form.submitted'} eq 'yes')  ||
     $env{'form.newrandomization'} eq &mt('New Randomization')) {      $env{'form.newrandomization'} eq &mt('New Randomization')) {
Line 328  sub setup_rndseed { Line 531  sub setup_rndseed {
     delete($env{'form.resetdata'});      delete($env{'form.resetdata'});
     delete($env{'form.newrandomization'});      delete($env{'form.newrandomization'});
  }   }
  if (defined($rndseed) && $rndseed ne int($rndseed)) {          $rndseed=~s/\,/\:/g;
     $rndseed=join(':',&Apache::lonnet::digest($rndseed));          $rndseed=~s/[^\w\d\:\-]//g;
    if (defined($rndseed)) {
               my ($c1,$c2)=split(/\:/,$rndseed);
               unless ($c2) { $c2=0; }
               unless (($c1==int($c1)) && ($c2==int($c2))) {
          $rndseed=join(':',&Apache::lonnet::digest($rndseed));
               }
         }          }
         if ($Apache::lonhomework::history{'resource.CODE'}) {          if ($Apache::lonhomework::history{'resource.CODE'}) {
    $rndseed=&Apache::lonnet::rndseed();     $rndseed=&Apache::lonnet::rndseed();
  }   }
  if ($safeeval) {          $set_safespace = 1;
     &Apache::lonxml::debug("Setting rndseed to $rndseed");      } elsif ($questiontype eq 'randomizetry') {
     &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);          if ($target eq 'analyze') {
  }              if (defined($env{'form.grade_rndseed'})) {
                   $rndseed = $env{'form.grade_rndseed'};
               }
           }
           unless (($target eq 'analyze') && (defined($rndseed))) {
               $rndseed=&Apache::lonnet::rndseed();
               my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
               if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                   $curr_try ++;
               }
               if ($rndseed =~/^(\d+)[,:](\d+)$/) {
                   $rndseed = $1;
               }
               if ($curr_try) {
                   my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
                   if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
                       my $inc = int(($curr_try-1)/$reqtries);
                       $rndseed += $inc;
                   } else {
                       $rndseed += $curr_try;
                   }
               }
           }
           $set_safespace = 1;
       }
       if ($set_safespace) {
           if ($safeeval) {
               &Apache::lonxml::debug("Setting rndseed to $rndseed");
               &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
           }
       }
       unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
           $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
     }      }
     return $rndseed;      return $rndseed;
 }  }
Line 349  sub remember_problem_state { Line 590  sub remember_problem_state {
        <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';         <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
 }  }
   
   sub problem_edit_action_button {
       my ($name,$action,$accesskey,$text,$flag)=@_;
       my $actionscript="setmode(this.form,'$action')";
       return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
              ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
   }
   
 sub problem_edit_buttons {  sub problem_edit_buttons {
    return  '     my ($mode)=@_;
 <div class="LC_edit_problem_discards">  # Buttons that do not save
        <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.     my $result='<div class="LC_edit_problem_discards">'.
        ' onclick="javscript:setmode(this.form,'."'discard'".')"  />                &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
        <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />     if ($mode eq 'editxml') {
        <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />         $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
 </div>         $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
 <div class="LC_edit_problem_saves">         $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
        <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />     } else {
        <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />         $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
 </div>';         $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
      }
      $result.="\n</div>";
   # Buttons that save
      $result.='<div class="LC_edit_problem_saves">';
      if ($mode eq 'editxml') {
          $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
          $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
      } else {
          $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
          $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
      }
      $result.="\n</div>\n";
      return $result;
 }  }
   
 sub problem_edit_header {  sub problem_edit_header {
     return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.      return '<input type="hidden" name="submitted" value="edit" />'.
  &Apache::structuretags::remember_problem_state().'   &remember_problem_state('edit').'
 <div class="LC_edit_problem_header">  <div class="LC_edit_problem_header">
 <div class="LC_edit_problem_header_title">  <div class="LC_edit_problem_header_title">
 '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'  '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
 </div>'.  </div>'.
   '<input type="hidden" name="problemmode" value="saveedit" />'.
 &problem_edit_buttons().'  &problem_edit_buttons().'
 <hr class="LC_edit_problem_divide" />  <hr style="clear:both;" />
 '.&Apache::lonxml::message_location().'  '.&Apache::lonxml::message_location().'
 </div>  </div>
 '.  '.
        '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';         '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
 }  }
   
 sub problem_edit_footer {  sub problem_edit_footer {
     return '</td></tr></table><br />      return '</td></tr></table><br />
 <div class="LC_edit_problem_footer">  <div class="LC_edit_problem_footer">
   <hr class="LC_edit_problem_divide" />'.    <hr />'.
 &problem_edit_buttons().'  &problem_edit_buttons().'
   <hr class="LC_edit_problem_divide" />    <hr style="clear:both;" />
 </div>  </div>
 '.  '.
   
     &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).  
     "\n</form>\n".&Apache::loncommon::end_page();      "\n</form>\n".&Apache::loncommon::end_page();
 }  }
   
Line 418  sub problem_web_to_edit_header { Line 678  sub problem_web_to_edit_header {
     '</div>';      '</div>';
     }      }
           
     my $show_all_foils_text =      my $show_all_foils_text = 
         ($Apache::lonhomework::parsing_a_task) ?   ($Apache::lonhomework::parsing_a_task) ?
         &mt('Show All Instances')   &mt('Show All Instances')
         : &mt('Show All Foils');   : &mt('Show All Foils');
   
     my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'      my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
                  .'<input type="checkbox" name="showallfoils"';                   .'<input type="checkbox" name="showallfoils"';
Line 450  sub problem_web_to_edit_header { Line 710  sub problem_web_to_edit_header {
 ".&mt("Problem Type:")."  ".&mt("Problem Type:")."
 <select name='problemtype'>  <select name='problemtype'>
   <option value=''></option>    <option value=''></option>
   ".&option('exam'   ,'problemtype').&mt("Exam Problem")."</option>    ".&option('exam'   ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
   ".&option('problem','problemtype').&mt("Homework Problem")."</option>    ".&option('problem','problemtype').&mt("Homework Problem")."</option>
   ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>    ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
     ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
     ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
     ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
   ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>    ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
     ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
 </select>  </select>
 </span>  </span>
 $show_all  $show_all
Line 500  $show_all Line 764  $show_all
      <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />       <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
      <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />       <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
    </div>     </div>
    <hr class="LC_edit_problem_divide" />     <hr />
    <div class="LC_edit_problem_header_randomize_row">     <div class="LC_edit_problem_header_randomize_row">
      <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />       <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
      <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />       <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
      <input type="text" name="rndseed" size="10" value="'.       <input type="text" name="rndseed" size="24" value="'.
        $rndseed.'"         $rndseed.'"
              onchange="javascript:document.lonhomework.changerandseed.click()" />';               onchange="javascript:document.lonhomework.changerandseed.click()" />';
   
Line 524  $show_all Line 788  $show_all
   
     $result.='      $result.='
    </div>     </div>
    <div class="LC_edit_problem_header_edit_row">';     <hr />
      <div>';
     $result.='<input type="hidden" name="problemmode" value="view" />';      $result.='<input type="hidden" name="problemmode" value="view" />';
     $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.      $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
                'onclick="javascript:setmode(this.form,'."'edit'".')" />';                 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
Line 532  $show_all Line 797  $show_all
                'onclick="javascript:setmode(this.form,'."'editxml'".')" />';                 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
     $result.='      $result.='
    </div>     </div>
      <hr />
    '.&Apache::lonxml::message_location().'     '.&Apache::lonxml::message_location().'
 </div>';  </div>';
     return $result;      return $result;
Line 609  sub finalize_storage { Line 875  sub finalize_storage {
     $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,      $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
     $symb,$courseid,$domain,$name);      $symb,$courseid,$domain,$name);
     &Apache::lonxml::debug('Store return message:'.$result);      &Apache::lonxml::debug('Store return message:'.$result);
             if ($env{'request.role'} =~/^st/) {              &store_aggregates($symb,$courseid);
                 &store_aggregates($symb,$courseid);  
             }  
  }   }
     } else {      } else {
  &Apache::lonxml::debug('Nothing to store');   &Apache::lonxml::debug('Nothing to store');
Line 631  item store_aggregates() Line 895  item store_aggregates()
   
 sub store_aggregates {  sub store_aggregates {
     my ($symb,$courseid) = @_;      my ($symb,$courseid) = @_;
     my %aggregate;      my (%aggregate,%anoncounter,%randtrycounter);
     my @parts;      my @parts;
     my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};      my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
     my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};      my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
Line 641  sub store_aggregates { Line 905  sub store_aggregates {
         }          }
     }      }
     foreach my $part (@parts) {      foreach my $part (@parts) {
         if ($Apache::lonhomework::results{'resource.'.$part.'.award'}          if ($env{'request.role'} =~/^st/) {
     eq 'APPROX_ANS' ||              if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
     $Apache::lonhomework::results{'resource.'.$part.'.award'}          eq 'APPROX_ANS' ||
     eq 'EXACT_ANS') {          $Apache::lonhomework::results{'resource.'.$part.'.award'}
             $aggregate{$symb."\0".$part."\0correct"} = 1;          eq 'EXACT_ANS') {
                   $aggregate{$symb."\0".$part."\0correct"} = 1;
               }
               if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
                   $aggregate{$symb."\0".$part."\0users"} = 1;
               } else {
                   my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]); 
                   if ($last_reset) {
                       if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
                           $aggregate{$symb."\0".$part."\0users"} = 1;
                       }
                   }
               }
               $aggregate{$symb."\0".$part."\0attempts"} = 1;
         }          }
         if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {          if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') || 
             $aggregate{$symb."\0".$part."\0users"} = 1;              ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
         } else {              ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
             my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);               if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
             if ($last_reset) {                  $randtrycounter{$symb."\0".$part} = 1;
                 if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {              } else {
                     $aggregate{$symb."\0".$part."\0users"} = 1;                  $anoncounter{$symb."\0".$part} = 1;
               }
               my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
               if ($needsrelease) {   
                   my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
                   if ($curr_required eq '') {
                       &Apache::lonnet::update_released_required($needsrelease);
                   } else {
                       my ($currmajor,$currminor) = split(/\./,$curr_required);
                       my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
                       if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
                           &Apache::lonnet::update_released_required($needsrelease);
                       }
                 }                  }
             }              }
         }          }
         $aggregate{$symb."\0".$part."\0attempts"} = 1;  
     }      }
     if (keys (%aggregate) > 0) {      if (keys (%aggregate) > 0) {
  &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,   &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
                             $cdomain,$cname);                              $cdomain,$cname);
     }      }
       if (keys(%anoncounter) > 0) {
           &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
                                 $cdomain,$cname);
       }
       if (keys(%randtrycounter) > 0) {
           &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
                                 $cdomain,$cname);
       }
 }  }
   
 sub checkout_msg {  sub checkout_msg {
Line 670  sub checkout_msg { Line 966  sub checkout_msg {
  'resource'=>'The resource needs to be checked out',   'resource'=>'The resource needs to be checked out',
  'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',   'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
                 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',                  'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
                 'checkout'=>'Check out Exam for Viewing',                  'checkout'=>'Check out Bubblesheet Exam for Viewing',
  'checkout?'=>'Check out Exam?');   'checkout?'=>'Check out Bubblesheet Exam?');
     my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});      my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
     return (<<ENDCHECKOUT);      return (<<ENDCHECKOUT);
 <h2>$lt{'resource'}</h2>  <h2>$lt{'resource'}</h2>
Line 693  sub firstaccess_msg { Line 989  sub firstaccess_msg {
  my $foldertitle=&Apache::lonnet::gettitle($map);   my $foldertitle=&Apache::lonnet::gettitle($map);
           
  &Apache::lonxml::debug("map is $map title is $foldertitle");   &Apache::lonxml::debug("map is $map title is $foldertitle");
  $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'   $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
                              .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'                               .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
                              ,$foldertitle,$time)."</h2>";                               ,$foldertitle,$time)."</p>";
     } elsif ($interval[1] eq 'course') {      } elsif ($interval[1] eq 'course') {
  my $course = $env{'course.'.$env{'request.course.id'}.'.description'};   my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
         $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'          $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
                              .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'                               .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
                              ,$course,$time)."</h2>";                               ,$course,$time)."</p>";
     } else {      } else {
  my $title=&Apache::lonnet::gettitle($symb);   my $title=&Apache::lonnet::gettitle($symb);
         $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'          $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
                              .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'                               .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
                              ,$title,$time)."</h2>";                               ,$title,$time)."</p>";
     }      }
     my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});      my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
     my $buttontext = &mt('Show Resource');      my $buttontext = &mt('Show Resource');
Line 743  sub init_problem_globals { Line 1039  sub init_problem_globals {
  &Apache::lonhomework::reset_show_problem_status();   &Apache::lonhomework::reset_show_problem_status();
  $Apache::lonhomework::ignore_response_errors=1;   $Apache::lonhomework::ignore_response_errors=1;
     }      }
       @Apache::functionplotresponse::callscripts=();
     @Apache::inputtags::responselist = ();      @Apache::inputtags::responselist = ();
     @Apache::inputtags::importlist = ();      @Apache::inputtags::importlist = ();
     @Apache::inputtags::previous=();      @Apache::inputtags::previous=();
Line 762  sub reset_problem_globals { Line 1059  sub reset_problem_globals {
     undef(%Apache::lonhomework::history);      undef(%Apache::lonhomework::history);
     undef(%Apache::lonhomework::results);      undef(%Apache::lonhomework::results);
     undef($Apache::inputtags::part);      undef($Apache::inputtags::part);
       if ($type eq 'Task') {
           undef($Apache::inputtags::slot_name);
       }
 #don't undef this, lonhomework.pm takes care of this, we use this to   #don't undef this, lonhomework.pm takes care of this, we use this to 
 #detect if we try to do 2 problems in one file  #detect if we try to do 2 problems in one file
 #   undef($Apache::lonhomework::parsing_a_problem);  #   undef($Apache::lonhomework::parsing_a_problem);
Line 770  sub reset_problem_globals { Line 1070  sub reset_problem_globals {
     undef($Apache::lonhomework::type);      undef($Apache::lonhomework::type);
     undef($Apache::lonhomework::scantronmode);      undef($Apache::lonhomework::scantronmode);
     undef($Apache::lonhomework::ignore_response_errors);      undef($Apache::lonhomework::ignore_response_errors);
       undef(@Apache::functionplotresponse::callscripts);
     &Apache::lonhomework::reset_show_problem_status();      &Apache::lonhomework::reset_show_problem_status();
 }  }
   
Line 858  sub start_problem { Line 1159  sub start_problem {
     &Apache::run::run($expression,$safeeval);      &Apache::run::run($expression,$safeeval);
     my $status;      my $status;
     my $accessmsg;      my $accessmsg;
       my $resource_due;
   
     my $name= &get_resource_name($parstack,$safeeval);      my $name= &get_resource_name($parstack,$safeeval);
     my ($result,$form_tag_start);      my ($result,$form_tag_start,$slot_name,$slot);
   
       if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
           $target eq 'tex') {
           if ($env{'form.markaccess'}) {
               my @interval=&Apache::lonnet::EXT("resource.0.interval");
               &Apache::lonnet::set_first_access($interval[1]);
           }
   
           ($status,$accessmsg,$slot_name,$slot) =
               &Apache::lonhomework::check_slot_access('0','problem');
           push (@Apache::inputtags::status,$status);
       }
   
     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'      if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
  || $target eq 'edit') {   || $target eq 'edit') {
  ($result,$form_tag_start) =   ($result,$form_tag_start) =
Line 870  sub start_problem { Line 1185  sub start_problem {
   
     if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}      if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
   
     if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }      if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
  $target eq 'tex') {   $target eq 'tex') {
  #handle exam checkout  
  if ($Apache::lonhomework::type eq 'exam') {  
     my $token=  
  $Apache::lonhomework::history{"resource.0.outtoken"};  
     if (($env{'form.doescheckout'}) && (!$token)) {  
  $token=&Apache::lonxml::maketoken();  
  $Apache::lonhomework::history{"resource.0.outtoken"}=  
     $token;  
     }  
     $result.=&Apache::lonxml::printtokenheader($target,$token);  
  }  
  if ($env{'form.markaccess'}) {  
     my @interval=&Apache::lonnet::EXT("resource.0.interval");  
     &Apache::lonnet::set_first_access($interval[1]);  
  }  
  #handle rand seed in construction space   #handle rand seed in construction space
  my $rndseed=&setup_rndseed($safeeval);   my $rndseed=&setup_rndseed($safeeval,$target);
  my ($symb)=&Apache::lonnet::whichuser();   my ($symb)=&Apache::lonnet::whichuser();
   
  if ($env{'request.state'} ne "construct" &&    if ($env{'request.state'} ne "construct" && 
     ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {      ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
     $form_tag_start.='<input type="hidden" name="rndseed" value="'.      $form_tag_start.='<input type="hidden" name="rndseed" value="'.
Line 902  sub start_problem { Line 1204  sub start_problem {
     '<input type="hidden" name="username"      '<input type="hidden" name="username"
                              value="'.$env{'form.username'}.'" />';                               value="'.$env{'form.username'}.'" />';
     }      }
             if ($env{'request.role.adv'}) {      if ($env{'request.role.adv'}) {
                 $form_tag_start.= ' <label class="LC_nobreak">'   $form_tag_start.= ' <label class="LC_nobreak">'
                          .'<input type="checkbox" name="showallfoils"';                           .'<input type="checkbox" name="showallfoils"';
                 if (defined($env{'form.showallfoils'})) {   if (defined($env{'form.showallfoils'})) {
                     $form_tag_start.=' checked="checked"';      $form_tag_start.=' checked="checked"';
                 }   }
                 $form_tag_start.= ' /> '                  $form_tag_start.= ' /> '
                                  .&mt('Show All Foils')                                   .&mt('Show All Foils')
                                  .'</label>';                                   .'</label>';
   
     }      }
             if ($Apache::lonhomework::type eq 'practice') {              if ($Apache::lonhomework::type eq 'practice') {
                 $form_tag_start.=&practice_problem_header();                  $form_tag_start.=&practice_problem_header();
             }              }
     $form_tag_start.='<hr />';      $form_tag_start.='<hr />';
  }          } elsif (($env{'request.state'} ne "construct") &&
                    ($Apache::lonhomework::type eq 'randomizetry') &&
  ($status,$accessmsg,my $slot_name,my $slot) =                    ($status eq 'CAN_ANSWER')) {
     &Apache::lonhomework::check_slot_access('0','problem');              my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
  push (@Apache::inputtags::status,$status);              my $problemstatus = &get_problem_status($Apache::inputtags::part);
               $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
           }
   
  my $expression='$external::datestatus="'.$status.'";';   my $expression='$external::datestatus="'.$status.'";';
  $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';   $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
Line 934  sub start_problem { Line 1237  sub start_problem {
     ( $status eq 'BANNED') ||      ( $status eq 'BANNED') ||
     ( $status eq 'UNAVAILABLE') ||      ( $status eq 'UNAVAILABLE') ||
     ( $status eq 'NOT_IN_A_SLOT') ||      ( $status eq 'NOT_IN_A_SLOT') ||
               ( $status eq 'NOTRESERVABLE') ||
               ( $status eq 'RESERVABLE') ||
               ( $status eq 'RESERVABLE_LATER') ||
     ( $status eq 'INVALID_ACCESS')) {      ( $status eq 'INVALID_ACCESS')) {
     my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,      my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
        $style);         $style);
     if ( $target eq "web" ) {      if ( $target eq "web" ) {
  my $msg;   my $msg;
  if ($status eq 'UNAVAILABLE') {   if ($status eq 'UNAVAILABLE') {
     $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';      $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
                 } elsif ($status eq 'NOT_IN_A_SLOT') {                  } elsif ($status eq 'NOT_IN_A_SLOT') {
                     $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';                      $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
                   } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
                            ($status eq 'NOTRESERVABLE')) {
                       $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
  } elsif ($status ne 'NOT_YET_VIEWED') {   } elsif ($status ne 'NOT_YET_VIEWED') {
     $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';      $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
  }                  }
  if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {   if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
     $msg.=&mt('The problem ').$accessmsg;      $msg.=&mt('The problem ').$accessmsg;
  } elsif ($status eq 'UNCHECKEDOUT') {   } elsif ($status eq 'UNCHECKEDOUT') {
Line 954  sub start_problem { Line 1263  sub start_problem {
     $msg.=&firstaccess_msg($accessmsg,$symb);      $msg.=&firstaccess_msg($accessmsg,$symb);
  } elsif ($status eq 'NOT_IN_A_SLOT') {   } elsif ($status eq 'NOT_IN_A_SLOT') {
     $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");      $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
                   } elsif ($status eq 'RESERVABLE') {
                       $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
                                 &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
                             '<br />'.
                             &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
                   } elsif ($status eq 'RESERVABLE_LATER') {
                       $msg.=&mt('Window to make a reservation will open [_1].',
                                 &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
                   } elsif ($status eq 'NOTRESERVABLE') {
                       $msg.=&mt('Not available to make a reservation.');  
  }   }
  $result.=$msg.'<br />';   $result.=$msg.'<br />';
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
Line 978  sub start_problem { Line 1297  sub start_problem {
  'problem');   'problem');
     }      }
  } elsif ($target eq 'web') {   } elsif ($target eq 'web') {
     if ($status eq 'CAN_ANSWER'       if ($status eq 'CAN_ANSWER') {
  && $slot_name ne ''                  $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
  && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {                  if ($slot_name ne '') {
  # unproctored slot access, self checkin                      my $checked_in =
  &Apache::bridgetask::check_in('problem',undef,undef,                          $Apache::lonhomework::history{'resource.0.checkedin'};
       $slot_name);                      if ($checked_in eq '') {
     }                          # unproctored slot access, self checkin
                           &Apache::bridgetask::check_in('problem',undef,undef,
                                                         $slot_name);
                           $checked_in =
                               $Apache::lonhomework::results{"resource.0.checkedin"};
                       }
                       if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
                           if ($slot->{'starttime'} < time()) {
                               if (!$resource_due) {
                                   $resource_due = $slot->{'endtime'};
                               } elsif ($slot->{'endtime'} < $resource_due) {
                                   $resource_due = $slot->{'endtime'};
                               }
                           }
                       }
                   }
                   if ($resource_due) {
                       my $time_left = $resource_due - time();
                       if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
                           $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
                       }
                   }
               }
     $result.="\n $form_tag_start \t".      $result.="\n $form_tag_start \t".
       '<input type="hidden" name="submitted" value="yes" />';        '<input type="hidden" name="submitted" value="yes" />';
     # create a page header and exit      # create a page header and exit
Line 1002  sub start_problem { Line 1343  sub start_problem {
     $result .= '<input type="hidden" name="grade_'.$field.      $result .= '<input type="hidden" name="grade_'.$field.
  '" value="'.$env{"form.grade_$field"}.'" />'."\n";   '" value="'.$env{"form.grade_$field"}.'" />'."\n";
  }   }
                   foreach my $field ('trial','questiontype') {
                       if ($env{"form.grade_$field"} ne '') {
                           $result .= '<input type="hidden" name="grade_'.$field.
                               '" value="'.$env{"form.grade_$field"}.'" />'."\n";
                       }
                   }
     }      }
               if ($env{'form.grade_imsexport'}) {
                   $result = '';
               }
  } elsif ($target eq 'tex') {   } elsif ($target eq 'tex') {
     $result .= 'INSERTTEXFRONTMATTERHERE';      $result .= 'INSERTTEXFRONTMATTERHERE';
       $result .= &select_metadata_hyphenation();
       
   
  }   }
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
Line 1061  sub end_problem { Line 1413  sub end_problem {
  }   }
  my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');   my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
  my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';   my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
    &clear_required_languages();
  my $toc_line='\vskip 1 mm\noindent '.$startminipage.   my $toc_line='\vskip 1 mm\noindent '.$startminipage.
     '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';      '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
   
Line 1068  sub end_problem { Line 1421  sub end_problem {
  #  it in the problem header.  We have been logging the   #  it in the problem header.  We have been logging the
  #  last due date written to file.    #  last due date written to file. 
   
  my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");   my $duetime = &Apache::lonnet::EXT("resource.$id.duedate"); 
  my $duedate = POSIX::strftime("%c",localtime($duetime));   my $duedate = POSIX::strftime("%c",localtime($duetime));
         my $duedate_text = &mt('Due date: [_1]'          my $duedate_text = &mt('Due date: [_1]'
                               ,&Apache::lonlocal::locallocaltime($duetime));                                ,&Apache::lonlocal::locallocaltime($duetime));
Line 1106  sub end_problem { Line 1459  sub end_problem {
  '\textit{'.$duedate_text.'} '.$toc_line;   '\textit{'.$duedate_text.'} '.$toc_line;
  } else {   } else {
     $frontmatter.= $begin_doc.$toc_line;      $frontmatter.= $begin_doc.$toc_line;
                     if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {      if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { 
                         $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';   $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
                     }      }
  }   }
     } else {      } else {
  $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;   $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
Line 1116  sub end_problem { Line 1469  sub end_problem {
  } else {   } else {
     if (not $env{'request.symb'} =~ m/\.page_/) {      if (not $env{'request.symb'} =~ m/\.page_/) {
  $frontmatter .= $begin_doc.$toc_line;   $frontmatter .= $begin_doc.$toc_line;
                 if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {   if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { 
                     $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';      $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
                 }   }
     } else {      } else {
  $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;   $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
     }      }
Line 1141  sub end_problem { Line 1494  sub end_problem {
     }      }
  } elsif ( ($target eq 'web' || $target eq 'tex') &&   } elsif ( ($target eq 'web' || $target eq 'tex') &&
   $Apache::inputtags::part eq '0' &&    $Apache::inputtags::part eq '0' &&
   $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {    $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
                     && !$env{'form.grade_imsexport'}) {
     # if part is zero, no <part>s existed, so we need show the current      # if part is zero, no <part>s existed, so we need show the current
     # grading status      # grading status
     my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);      my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
Line 1151  sub end_problem { Line 1505  sub end_problem {
     (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||      (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
     ($target eq 'answer') || ($target eq 'tex')      ($target eq 'answer') || ($target eq 'tex')
    ) {     ) {
     if ($target ne 'tex' &&      if (($target ne 'tex') &&
  $env{'form.answer_output_mode'} ne 'tex') {   ($env{'form.answer_output_mode'} ne 'tex') && 
                   (!$env{'form.grade_imsexport'})) {
  $result.="</form>";   $result.="</form>";
  $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());  
     }      }
     if ($target eq 'web') {      if ($target eq 'web') {
  $result.= &Apache::loncommon::end_page({'discussion' => 1});                  #
                   # Closing </body></html> not added by end_page().
                   # Added separately at end of this routine, after added
                   # <script></script> so document will be valid xhtml.
                   #
    $result.= &Apache::loncommon::end_page({'discussion' => 1,
    'notbody'    => 1});
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my $endminipage = '';   my $endminipage = '';
  if (not $env{'form.problem_split'}=~/yes/) {   if (not $env{'form.problem_split'}=~/yes/) {
Line 1175  sub end_problem { Line 1535  sub end_problem {
  }   }
     }      }
  }   }
           if ($target eq 'web') {
              $result.=&Apache::functionplotresponse::init_script();
           }
  if ($target eq 'grade') {   if ($target eq 'grade') {
     &Apache::lonhomework::showhash(%Apache::lonhomework::results);      &Apache::lonhomework::showhash(%Apache::lonhomework::results);
     &finalize_storage();      &finalize_storage();
Line 1205  sub end_problem { Line 1568  sub end_problem {
   
     &reset_problem_globals('problem');      &reset_problem_globals('problem');
   
       #
       # This shouild be just above the return so that the
       # time put in the javascript is as late as possible in the
       # computation:
       #
       if ($target eq 'web') {
           $result .= &Apache::lonhtmlcommon::set_compute_end_time();
           #
           # Closing tags delayed so any <script></script> tags 
           # not in head can appear inside body, for valid xhtml.
           # 
           $result .= "</body>\n</html>";
       }
     return $result;      return $result;
 }  }
   
Line 1232  sub start_library { Line 1608  sub start_library {
  ($result,$form_tag_start)=   ($result,$form_tag_start)=
     &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,      &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
  $name);   $name);
  my $rndseed=&setup_rndseed($safeeval);   my $rndseed=&setup_rndseed($safeeval,$target);
  $result.=" \n $form_tag_start".   $result.=" \n $form_tag_start".
   '<input type="hidden" name="submitted" value="yes" />';    '<input type="hidden" name="submitted" value="yes" />';
  $result.=&problem_web_to_edit_header($rndseed);   $result.=&problem_web_to_edit_header($rndseed);
Line 1331  sub end_block { Line 1707  sub end_block {
     }      }
     return $result;      return $result;
 }  }
   #
   #  <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
   #  ...
   #  </languageblock>
   #
   #   This declares the intent to provide content that can be rendered in the
   #   set of languages in the include specificatino but not in the exclude
   #   specification.  If a currently preferred language is in the include list
   #   the content in the <languageblock>...</languageblock> is rendered
   #   If the currently preferred language is in the exclude list,
   #   the content in the <languageblock>..></languageblock is not rendered.
   #
   #   Pathalogical case handling:
   #     - Include specified, without the preferred language but exclude  specified
   #       also without the preferred langauge results in rendering the block.
   #     - Exclude specified without include and excluden not containing a 
   #       preferred language renders the block.
   #     - Include and exclude both specifying the preferred language does not
   #       render the block.
   #     - If neither include/exclude is specified, the block gets rendered.
   #
   #  This tag has no effect when target is in {edit, modified}
   #
 sub start_languageblock {  sub start_languageblock {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
     my $result;      my $result = '';
   
     if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
  $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {   $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  my $include = $token->[2]->{'include'};   my $include = $token->[2]->{'include'};
  my $exclude = $token->[2]->{'exclude'};   my $exclude = $token->[2]->{'exclude'};
         my @preferred_languages=&Apache::lonlocal::preferred_languages();          my @preferred_languages=&Apache::lonlocal::preferred_languages();
 # This should not even happen, since we should at least have the server language  
         if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }          # This should not even happen, since we should at least have the server language
 # Now loop over all languages in order of preference  
           if (!$preferred_languages[0]) { 
       $preferred_languages[0]='en'; 
    }
   
           # Now loop over all languages in order of preference
   
    my $render;
         foreach my $preferred_language (@preferred_languages) {          foreach my $preferred_language (@preferred_languages) {
 # If the languageblock has no arguments, show the contents  
            $result=1;      # If neither include/nor exlude is present the block is going
       # to get rendered.
   
            my $found=0;             my $found=0;
 # Do we have an include argument?             $render=1;
   
      #  If include is specified,  don't render the block
      #  unless the preferred language is included in the set.
   
    if ($include) {     if ($include) {
 # If include is specified, by default, don't render the block                $render=0;
               $result=0;  
               foreach my $included_language (split(/\,/,$include)) {                foreach my $included_language (split(/\,/,$include)) {
 # ... but if my preferred language is included, render it  
                  if ($included_language eq $preferred_language) {                   if ($included_language eq $preferred_language) {
                     $result=1;                       $render=1; 
                     $found=1;                       $found=1; 
       last; # Only need to find the first.
                  }                   }
               }                }
    }     }
 # Do we have an exclude argument?             # Do we have an exclude argument?
      # If so, and one of the languages matches a preferred language
      # inhibit rendering the block.  Note that in the pathalogical case the
      # author has specified a preferred language in both the include and exclude
      # attribte exclude is preferred.  
   
            if ($exclude) {             if ($exclude) {
               $result=1;                $render=1;
               foreach my $excluded_language (split(/\,/,$exclude)) {                foreach my $excluded_language (split(/\,/,$exclude)) {
                  if ($excluded_language eq $preferred_language) {                   if ($excluded_language eq $preferred_language) {
                     $result=0;                      $render=0;
                     $found=1;                      $found=1;
       last; # Only need to find the first.
                  }                   }
               }                }
    }     }
            if ($found) { last; }             if ($found) { 
          last; # Done on any match of include or exclude.
      }
         }          }
  if ( ! $result ) {   # If $render not true skip the entire block until </languageblock>
    #
   
    if ( ! $render ) {
     my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,      my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
    $style);     $style);
     &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");      &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
  }   }
  $result='';   # If $render is true, we've not skipped the contents of the <languageglock>
    # and the normal loncapa processing flow will render it as a matter of course.
   
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result .=&Apache::edit::tag_start($target,$token);   $result .=&Apache::edit::tag_start($target,$token);
  $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',   $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
Line 1403  sub end_languageblock { Line 1826  sub end_languageblock {
     }      }
     return $result;      return $result;
 }  }
   #  languagblock specific tags:
 {  {
     my %available_texts;      # For chunks of a resource that has translations, this hash contains
       # the translations available indexed by language name.
       #
   
       my %available_texts;       
   
       # <translated> starts a block of a resource that has multiple translations.
       # See the <lang> tag as well.
       # When </translated> is encountered if there is a translation for the 
       # currently preferred language, that is rendered inthe web/tex/webgrade
       # targets.  Otherwise, the default text is rendered.
       #
       # Note that <lang> is only registered for the duration of the 
       #  <translated>...</translated> block 
       #
       # Pathalogical case handling:
       #   - If there is no <lang> that specifies a 'default' and there is no
       #     translation that matches a preferred language, nothing is rendered.
       #   - Nested <translated>...</translated> might be linguistically supported by
       #     XML due to the stack nature of tag registration(?) however the rendered
       #     output will be incorrect because there is only one %available_texts
       #     has and end_translated clears it.
       #   - Material outside of a <lang>...</lang> block within the
       #     <translated>...<translated> block won't render either e.g.:
       #    <translated>
       #      The following will be in your preferred langauge:
       #      <lang which='en'>
       #         This section in english
       #      </lang>
       #      <lang which='sgeiso'>
       #         Hier es ist auf Deutsch.
       #      </lang>
       #      <lang which='sfriso'>
       #         En Francais
       #      </lang>
       #    </translated>
       #
       #    The introductory text prior to the first <lang> tag is not rendered.
       #
     sub start_translated {      sub start_translated {
  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  &Apache::lonxml::register('Apache::structuretags',('lang'));   &Apache::lonxml::register('Apache::structuretags',('lang'));
Line 1424  sub end_languageblock { Line 1885  sub end_languageblock {
     my @possibilities = keys(%available_texts);      my @possibilities = keys(%available_texts);
     my $which =       my $which = 
  &Apache::loncommon::languages(\@possibilities) || 'default';   &Apache::loncommon::languages(\@possibilities) || 'default';
     $result = $available_texts{$which};      if ($target eq 'tex') {
    $result = &select_hyphenation($which);
       }
       $result .= $available_texts{$which};
       if ($target eq 'tex') {
    $result .= &select_metadata_hyphenation(); # Restore original language.
       }
  }   }
  undef(%available_texts);   undef(%available_texts);
  &Apache::lonxml::deregister('Apache::structuretags',('lang'));   &Apache::lonxml::deregister('Apache::structuretags',('lang'));
  return $result;   return $result;
     }      }
   
       # <lang [which='language-name'] [other='lang1,lang2...']>  
       #  Specifies that the block contained within it is a translation 
       #  for a specific language specified by the 'which' attribute. The
       #   'other' attribute can be used by itself or in conjunction with
       #   which to specify this tag _may_ be used as a translation for some
       #   list of languages. e.g.:  <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
       #   specifying that the block provides a translation for US (primary)
       #   Canadian, Australian and UK Englush.
       #   
       # Comment: this seems a bit silly why not just support a list of languages
       #           e.g. <lang which='l1,l2...'> and ditch the other attribute?
       #
       #  Effect:
       #    The material within the <lang>..</lang> block is stored in the
       #    specified set of $available_texts hash entries, the appropriate one
       #    is selected at </translated> time.
       #
       #  Pathalogical case handling:
       #    If a language occurs multiple times within a <translated> block,
       #    only the last one is rendered e.g.:
       #
       #    <translated>
       #       <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
       #          Red green color blindness is quite common affecting about 7.8% of 
       #          the male population, but onloy about .65% of the female population.
       #       </lang>
       #          Red green colour blindness is quite common affecting about 7.8% of 
       #          the male population, but onloy about .65% of the female population.
       #       <lang which='seniso', other='senisoCA,senisoAU'>
       #     </translated>
       #
       #    renders the correct spelling of color (colour) for people who have specified
       #    a preferred language that is one of the British Commonwealth languages
       #    even though those are also listed as valid selections for the US english
       #    <lang> block.
       #
     sub start_lang {      sub start_lang {
  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||   if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
Line 1462  sub end_languageblock { Line 1964  sub end_languageblock {
  }   }
  return '';   return '';
     }      }
 }  } # end langauge block specific tags.
   
   
 sub start_instructorcomment {  sub start_instructorcomment {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
Line 1471  sub start_instructorcomment { Line 1974  sub start_instructorcomment {
   
     if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
  $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {   $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
         $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);          $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
  if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {   if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
     my $skip=&Apache::lonxml::get_all_text("/instructorcomment",      my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
    $parser,$style);     $parser,$style);
Line 1676  sub ordered_show_check { Line 2179  sub ordered_show_check {
     return $in_order_show;      return $in_order_show;
 }  }
   
   
   sub start_startpartmarker {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result='';
       if ($target eq 'edit') {
           $result=&Apache::edit::tag_start($target,$token);
           $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
           $result.=&Apache::edit::end_table();
   
       } 
       return $result;
   }
   
   sub end_startpartmarker {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my @result;
       if ($target eq 'edit') { $result[1]='no'; }
       return @result;
   }
   
   sub start_endpartmarker {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result='';
       if ($target eq 'edit') {
           $result=&Apache::edit::tag_start($target,$token);
           $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
           $result.=&Apache::edit::end_table();
   
       }
       return $result;
   }
   
   sub end_endpartmarker {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my @result;
       if ($target eq 'edit') { $result[1]='no'; }
       return @result;
   }
   
   
   
   
   
 sub start_part {  sub start_part {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if (!$Apache::lonxml::metamode) {      if (!$Apache::lonxml::metamode) {
Line 1760  sub start_part { Line 2306  sub start_part {
     '.disableexampointprint'}) eq 'yes') {      '.disableexampointprint'}) eq 'yes') {
  $allow_print_points=0;   $allow_print_points=0;
     }      }
                     if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {       if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { 
                         $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';   $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
                     }  
       }
  } elsif ($target eq 'web') {   } elsif ($target eq 'web') {
     $result.='<a name="'.&escape($Apache::inputtags::part).'" />';                      if ($status eq 'CAN_ANSWER') {
                           my $problemstatus = &get_problem_status($Apache::inputtags::part); 
                           my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
                           my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
                           my $num = scalar(@Apache::inputtags::partlist)-1;
                           if ($probrandomize eq 'randomizetry') {
                               if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
                                   $result .= &randomizetry_part_header($problemstatus,'none',$num);
                               } else {
                                   my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
                                   if ($probrandtries ne $reqtries) {
                                       $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
                                   }
                               }
                           } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
                               my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
                               $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
                           }
                       }
       $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
  }   }
     }      }
  }   }
Line 1810  sub end_part { Line 2376  sub end_part {
      !$hidden && $in_order_show) {       !$hidden && $in_order_show) {
  my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,   my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
  $target);   $target);
  if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {   if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
                ($env{'form.grade_imsexport'})) {
     $gradestatus='';      $gradestatus='';
  }   }
  $result.=$gradestatus;   $result.=$gradestatus;
Line 1929  sub start_problemtype { Line 2496  sub start_problemtype {
     ['hide','Hide']]      ['hide','Hide']]
    ,$token);     ,$token);
  $result .=&Apache::edit::checked_arg('When used as type(s):','for',   $result .=&Apache::edit::checked_arg('When used as type(s):','for',
      [ ['exam','Exam/Quiz Problem'],       [ ['exam','Bubblesheet Exam/Quiz Problem'],
        ['survey','Survey'],         ['survey','Survey'],
                                                  ['surveycred','Survey (with credit)'],
                                                  ['anonsurvey','Anonymous Survey'],
                                                  ['anonsurveycred','Anonymous Survey (with credit)'],
        ['problem','Homework Problem'],         ['problem','Homework Problem'],
                                                ['practice','Practice Problem'] ]                                                 ['practice','Practice Problem'],
                                                  ['randomizetry','New Randomization Each Try'] ]
      ,$token);       ,$token);
  $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();   $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
Line 1971  sub end_startouttext { Line 2542  sub end_startouttext {
  $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"   $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
                  .'<td><span class="LC_nobreak">'.&mt('Delete?').' '                   .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
                  .&Apache::edit::deletelist($target,$token)                   .&Apache::edit::deletelist($target,$token)
                  .'</span></td>';                   .'</span></td>'
         unless ($env{'environment.wysiwygeditor'} eq 'on') {           .'<td align="left"><span id="math_'.$areaid.'">'
     $result .= '<td align="left">'   .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
  .&Apache::lonhtmlcommon::dragmath_button($areaid,1)   .'</span></td>'
  .'</td>'   .'<td>'
  .'<td>'   .&Apache::edit::insertlist($target,$token)
  .&Apache::edit::insertlist($target,$token)   .'</td>'
  .'</td>';           .'<td align="right" valign="top">' .
  }           &Apache::loncommon::helpLatexCheatsheet().
  $result.='<td align="right" valign="top">' .  
     &Apache::loncommon::helpLatexCheatsheet().  
  &Apache::edit::end_row().   &Apache::edit::end_row().
                  &Apache::edit::start_spanning_row()."\n".                   &Apache::edit::start_spanning_row()."\n".
  &Apache::edit::editfield($token->[1],$text,"",80,8,1);   &Apache::edit::editfield($token->[1],$text,"",80,8,1);
Line 2044  sub start_simpleeditbutton { Line 2613  sub start_simpleeditbutton {
         my $url=$env{'request.noversionuri'};          my $url=$env{'request.noversionuri'};
         $url=~s/\?.*$//;          $url=~s/\?.*$//;
  my ($symb) = &Apache::lonnet::whichuser();   my ($symb) = &Apache::lonnet::whichuser();
 #       Warning make more sense and is more important on edit screen  #       Warning makes more sense and is more important on edit screen
 #       $result='<p class="LC_warning">'  #       $result='<p class="LC_warning">'
 #              .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')  #              .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
 #              .&Apache::loncommon::help_open_topic('Caching')  #              .&Apache::loncommon::help_open_topic('Caching')
 #              .'</p>';  #              .'</p>';
         $result.=&Apache::lontemplate::start_functionslist()          $result.=&Apache::loncommon::head_subbox(
                 .&Apache::lontemplate::item_functionslist(                   &Apache::lonhtmlcommon::start_funclist()
                      '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a>')                  .&Apache::lonhtmlcommon::add_item_funclist(
                 .&Apache::lontemplate::end_functionslist();                       '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
                       .&mt('Edit').'</a>')
                   .&Apache::lonhtmlcommon::end_funclist());
   
     }      }
     return $result;      return $result;
Line 2068  sub practice_problem_header { Line 2639  sub practice_problem_header {
            '</span>';             '</span>';
 }  }
   
   sub randomizetry_problem_header {
       my ($problemstatus,$reqtries) = @_;
       my ($header,$text);
       if ($reqtries > 1) {
           $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
           if (($problemstatus eq 'no') ||
               ($problemstatus eq 'no_feedback_ever')) {
               $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
           } else {
               $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
           }
       } else {
           $header = &mt('New Problem Variation Each Try');
           if (($problemstatus eq 'no') ||
               ($problemstatus eq 'no_feedback_ever')) {
               $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
   
           } else {
               $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
           }
       }
       return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
              '<span class="LC_info">'.$text.'</span><hr />';
   }
   
   sub randomizetry_part_header {
       my ($problemstatus,$reqtries,$num) = @_;
       my ($header,$text);
       if ($reqtries eq 'none') {
           $header = &mt('No Question Variation');
           $text = &mt('For this question there will no new variation after a try.');
       } elsif ($reqtries > 1) {
           $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
           if (($problemstatus eq 'no') ||
               ($problemstatus eq 'no_feedback_ever')) {
               $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
           } else {
               $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
           }
       } else {
           $header = &mt('New Question Variation For Each Try');
           if (($problemstatus eq 'no') ||
               ($problemstatus eq 'no_feedback_ever')) {
               $text =  &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
           } else {
               $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
           }
       }
       my $output;
       if ($num > 1) {
           $output .= '<hr />';
       }
       $output .=  '<span class="LC_info"><h4>'.$header.'</h4></span>'.
                     '<span class="LC_info">'.$text.'</span><br /><br />';
       return $output;
   }
   
 1;  1;
 __END__  __END__
   
Removed from v.1.444.4.3  
changed lines
  Added in v.1.513

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