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Diff for /loncom/homework/edit.pm between versions 1.25 and 1.46

version 1.25, 2001/12/04 14:47:33 version 1.46, 2003/02/13 23:53:33
Line 26 Line 26
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
 # 3/20 Guy  # 3/20 Guy
   # 01/10/02 Matthew
   # 03/06/02 Matthew
 package Apache::edit;   package Apache::edit; 
   
 use strict;  use strict;
 use Apache::lonnet;  use Apache::lonnet();
   use HTML::Entities();
   
 # Global Vars  # Global Vars
 # default list of colors to use in editing  # default list of colors to use in editing
 @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');  @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
 # depth of nesting of edit  # depth of nesting of edit
 $Apache::edit::colordepth=0;  $Apache::edit::colordepth=0;
   @Apache::edit::inserttag=();
   
 sub initialize_edit {  sub initialize_edit {
   $Apache::edit::colordepth=0;    $Apache::edit::colordepth=0;
     @Apache::edit::inserttag=();
 }  }
   
 sub tag_start {  sub tag_start {
Line 55  sub tag_start { Line 60  sub tag_start {
   &deletelist($target,$token)    &deletelist($target,$token)
   ."</td>    ."</td>
 <td>".  <td>".
   &insertlist($target,$token).      &insertlist($target,$token).&end_row().&start_spanning_row();
     "</td>  #<td>". 
 </tr><tr><td colspan=\"3\">\n";  
 #<td>".  
 #  &movebuttons($target,$token).  #  &movebuttons($target,$token).
 #    "</tr><tr><td colspan=\"3\">\n";  #    "</tr><tr><td colspan=\"3\">\n";
   }    }
Line 95  sub start_table { Line 98  sub start_table {
     $color = $Apache::edit::colorlist[$Apache::edit::colordepth];      $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
   }    }
   $Apache::edit::colordepth++;    $Apache::edit::colordepth++;
   my $result="<table bgcolor=\"$color\" width=\"100%\" border=\"5\">";    push(@Apache::edit::inserttag,$token->[1]);
     my $result='<div align="right">';
     $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="5" cellpadding="3">';
   return $result;    return $result;
 }  }
   
 sub end_table {  sub end_table {
   $Apache::edit::colordepth--;    $Apache::edit::colordepth--;
   my $result="</table>";    my $result='</table></div>';
     $result.="<table><tr><td>";
   
     my ($tagname,$closingtag);
     if (defined($Apache::edit::inserttag[-2])) {
       $tagname=$Apache::edit::inserttag[-2];
     } else {$tagname='problem';}
     if (defined($Apache::edit::inserttag[-1])) {
       $closingtag=$Apache::edit::inserttag[-1];
     }
     $result.=&innerinsertlist('edit',$tagname,$closingtag).
       "</td></tr></table>";
     pop(@Apache::edit::inserttag);
   return $result;    return $result;
 }  }
   
   sub start_spanning_row { return '<tr><td colspan="3" bgcolor="#DDDDDD">';}
   sub start_row          { return '<tr><td bgcolor="#DDDDDD">';            }
   sub end_row            { return '</td></tr>';          }
   
 sub movebuttons {  sub movebuttons {
   my ($target,$token) = @_;    my ($target,$token) = @_;
   my $result='<input type="submit" name="moveup.'.    my $result='<input type="submit" name="moveup.'.
Line 138  sub handle_delete { Line 159  sub handle_delete {
   }    }
   if (!$result) {    if (!$result) {
     my $endtag='/'.$token->[1];      my $endtag='/'.$token->[1];
     my $bodytext=&Apache::lonxml::get_all_text($endtag,$$parser[$#$parser]);      my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
     $$parser['-1']->get_token();      $$parser['-1']->get_token();
     &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");      &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
     &Apache::lonxml::end_tag($tagstack,$parstack,$token);      &Apache::lonxml::end_tag($tagstack,$parstack,$token);
Line 147  sub handle_delete { Line 168  sub handle_delete {
 }  }
   
 sub get_insert_list {  sub get_insert_list {
   my ($token) = @_;    my ($tagname) = @_;
   my $result='';    my $result='';
   my @tagnums= ();    my @tagnums= ();
   #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));    #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
   if ($Apache::lonxml::insertlist{"$token->[1].which"}) {    if ($Apache::lonxml::insertlist{"$tagname.which"}) {
     push (@tagnums, @{ $Apache::lonxml::insertlist{"$token->[1].which"} });      push (@tagnums, @{ $Apache::lonxml::insertlist{"$tagname.which"} });
   }    }
   foreach my $namespace (@Apache::lonxml::namespace) {    foreach my $namespace (@Apache::lonxml::namespace) {
     if ($Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"}) {      if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) {
       push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"} });        push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} });
     }      }
   }    }
   if (@tagnums) {    if (@tagnums) {
       my %options;
     foreach my $tagnum (@tagnums) {      foreach my $tagnum (@tagnums) {
       $result.='<option value="'.$tagnum.'">'.$Apache::lonxml::insertlist{"$tagnum.description"}."</option>\n";        my $descrip=$Apache::lonxml::insertlist{"$tagnum.description"};
         $options{$descrip} ="<option value=\"$tagnum\">".$descrip."</option>\n";
     }      }
       foreach my $option (sort(keys(%options))) { $result.=$options{$option}; }
     if ($result) { $result='<option selected="on"></option>'.$result; }      if ($result) { $result='<option selected="on"></option>'.$result; }
   }    }
   return $result;    return $result;
Line 170  sub get_insert_list { Line 194  sub get_insert_list {
   
 sub insertlist {  sub insertlist {
   my ($target,$token) = @_;    my ($target,$token) = @_;
     return &innerinsertlist($target,$token->[1]);
   }
   
   sub innerinsertlist {
     my ($target,$tagname,$closingtag) = @_;
   my $result;    my $result;
     my $after='';
     if ($closingtag) {
        $after='_after_'.$closingtag; 
     }
   if ($target eq 'edit') {    if ($target eq 'edit') {
     my $optionlist= &get_insert_list($token);      my $optionlist= &get_insert_list($tagname);
     if ($optionlist) {      if ($optionlist) {
       $result = "Insert:        $result = "Insert:
 <select name=\"insert_$Apache::lonxml::curdepth\">  <select name=\"insert$after\_$Apache::lonxml::curdepth\">
 $optionlist  $optionlist
 </select>"  </select>"
     } else {      } else {
Line 209  sub handle_insert { Line 242  sub handle_insert {
   return $result;    return $result;
 }  }
   
   sub handle_insertafter {
     my $tagname=shift;
     if ($ENV{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '')
        { return ''; }
     my $result;
     my $tagnum =$ENV{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"};
     my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
     if ($func eq 'default') {
       my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
       my $namespace;
       if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
       $result.="\n<$newtag>\n</$newtag>";
     } else {
       if (defined(&$func)) {
         {
    no strict 'refs';
    $result.=&$func();
         }
       } else {
         my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
         &Apache::lonxml::error("Unable to insert (after) tag $newtag, $func was not defined. ($tagname $tagnum)");
       }
     }
     return $result;
   }
   
 sub insert_responseparam {  sub insert_responseparam {
   return '    return '
     <responseparam />';      <responseparam />';
Line 241  sub insert_stringresponse { Line 300  sub insert_stringresponse {
 </stringresponse>';  </stringresponse>';
 }  }
   
   sub insert_essayresponse {
     return '
   <essayresponse>
       <textfield></textfield>
   </essayresponse>';
   }
   
 sub insert_optionresponse {  sub insert_optionresponse {
   return '    return '
 <optionresponse max="10">  <optionresponse max="10">
Line 261  sub insert_radiobuttonresponse { Line 327  sub insert_radiobuttonresponse {
 </radiobuttonresponse>';  </radiobuttonresponse>';
 }  }
   
   sub insert_rankresponse {
     return '
   <rankresponse max="10">
       <foilgroup options="">
       </foilgroup>
       <hintgroup>
       </hintgroup>
   </rankresponse>';
   }
   
   sub insert_matchresponse {
     return '
   <matchresponse max="10">
       <foilgroup options="">
         <itemgroup>
         </itemgroup>
       </foilgroup>
       <hintgroup>
       </hintgroup>
   </matchresponse>';
   }
   
 sub insert_displayduedate { return '<displayduedate />'; }  sub insert_displayduedate { return '<displayduedate />'; }
 sub insert_displaytitle   { return '<displaytitle />'; }  sub insert_displaytitle   { return '<displaytitle />'; }
 sub insert_hintpart {  sub insert_hintpart {
Line 277  sub insert_numericalhint { Line 365  sub insert_numericalhint {
 </numericalhint>';  </numericalhint>';
 }  }
   
   sub insert_stringhint {
     return '
   <stringhint>
   </stringhint>';
   }
   
   sub insert_formulahint {
     return '
   <formulahint>
   </formulahint>';
   }
   
   sub insert_radiobuttonhint {
     return '
   <radiobuttonhint>
   </radiobuttonhint>';
   }
   
 sub insert_startouttext {  sub insert_startouttext {
   return "<startouttext />\n<endouttext />";    return "<startouttext />\n<endouttext />";
 }  }
Line 289  sub textarea_sizes { Line 395  sub textarea_sizes {
   my ($data)=@_;    my ($data)=@_;
   my $count=0;    my $count=0;
   my $maxlength=-1;    my $maxlength=-1;
   map { $count++;    foreach (split ("\n", $$data)) { $count++;
  if (length($_) > $maxlength) { $maxlength = length($_); }   if (length($_) > $maxlength) { $maxlength = length($_); }
       } split ("\n", $$data);        }
   my $rows = $count;    my $rows = $count;
   my $cols = $maxlength;    my $cols = $maxlength;
   return ($rows,$cols);    return ($rows,$cols);
 }  }
   
   sub editline {
       my ($tag,$data,$description,$size)=@_;
       $data=&HTML::Entities::encode($data);
       if ($description) { $description="<br />".$description."<br />"; }
       my $result = <<"END";
   $description
   <input type="text" name="homework_edit_$Apache::lonxml::curdepth" 
          value="$data" size="$size" />
   END
       return $result;
   }
   
 sub editfield {  sub editfield {
   my ($tag,$data,$description,$minwidth,$minheight)=@_;    my ($tag,$data,$description,$minwidth,$minheight)=@_;
   
Line 305  sub editfield { Line 423  sub editfield {
   if ($cols < $minwidth ) { $cols = $minwidth; }    if ($cols < $minwidth ) { $cols = $minwidth; }
   if ($rows < $minheight) { $rows = $minheight; }    if ($rows < $minheight) { $rows = $minheight; }
   if ($description) { $description="<br />".$description."<br />"; }    if ($description) { $description="<br />".$description."<br />"; }
   return "$description\n&nbsp;&nbsp;&nbsp;<textarea rows=\"$rows\" cols=\"$cols\" name=\"homework_edit_".$Apache::lonxml::curdepth."\">$data</textarea>\n";    return $description."\n".'&nbsp;&nbsp;&nbsp;<textarea rows="'.$rows.
       '" cols="'.$cols.'" name="homework_edit_'.$Apache::lonxml::curdepth.'">'.
         &HTML::Entities::encode($data).'</textarea>'."\n";
 }  }
   
 sub modifiedfield {  sub modifiedfield {
Line 317  sub modifiedfield { Line 437  sub modifiedfield {
 #  &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");  #  &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
 #  &Apache::lonxml::debug($ENV{"form.homework_edit_$Apache::lonxml::curdepth"});  #  &Apache::lonxml::debug($ENV{"form.homework_edit_$Apache::lonxml::curdepth"});
   $result=$ENV{"form.homework_edit_$Apache::lonxml::curdepth"};    $result=$ENV{"form.homework_edit_$Apache::lonxml::curdepth"};
   if (defined $token) {  
     if (defined $token->[4]) {  
       $result=$token->[4].$result;  
     } else {  
       $result=$result.$token->[2];  
     }  
   }  
   return $result;    return $result;
 }  }
   
Line 373  sub text_arg { Line 486  sub text_arg {
   my $result;    my $result;
   if (!defined $size) { $size=20; }    if (!defined $size) { $size=20; }
   my $arg=$token->[2]{$name};    my $arg=$token->[2]{$name};
   $result=$description.'<input name="'."$Apache::lonxml::curdepth.$name".    $result=$description.'&nbsp;<input name="'."$Apache::lonxml::curdepth.$name".
     '" type="text" value="'.$arg.'" size="'.$size.'" />';      '" type="text" value="'.$arg.'" size="'.$size.'" />';
   return $result;    return $result;
 }  }
   
 sub select_arg {  sub select_arg {
   my ($description,$name,$list,$token) = @_;      my ($description,$name,$list,$token) = @_;
   my $result;      my $result;
   my $optionlist="";      my $optionlist="";
   my $selected=$token->[2]{$name};      my $selected=$token->[2]{$name};
   foreach my $option (@$list) {      foreach my $option (@$list) {
     if ( $selected eq $option ) {   my $value;
       $optionlist.="<option selected=\"on\">$option</option>\n";   if ( ref($option) eq 'ARRAY') {
     } else {      $value='value="'.$$option[0].'"';
       $optionlist.="<option>$option</option>\n";      $option=$$option[1];
    } else {
       $value='value="'.$option.'"';
    }
    if ( $selected eq $option ) {
       $optionlist.="<option $value selected=\"on\">$option</option>\n";
    } else {
       $optionlist.="<option $value >$option</option>\n";
    }
     }      }
   }      $result.=$description.'&nbsp;<select name="'.
   $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">   "$Apache::lonxml::curdepth.$name".'">
        '.$optionlist.'         '.$optionlist.'
       </select></td></tr><tr><td colspan="3">';        </select>';
   return $result;      return $result;
 }  }
   
 sub select_or_text_arg {  sub select_or_text_arg {
   my ($description,$name,$list,$token,$size) = @_;      my ($description,$name,$list,$token,$size) = @_;
   my $result;      my $result;
   my $optionlist="";      my $optionlist="";
   my $found=0;      my $found=0;
   my $selected=$token->[2]{$name};      my $selected=$token->[2]{$name};
   foreach my $option (@$list) {      foreach my $option (@$list) {
     if ( $selected eq $option ) {   my $value;
       $optionlist.="<option selected=\"on\">$option</option>\n";   if ( ref($option) eq 'ARRAY') {
       $found=1;      $value='value="'.$$option[0].'"';
       $option=$$option[1];
    } else {
       $value='value="'.$option.'"';
    }
    if ( $selected eq $option ) {
       $optionlist.="<option $value selected=\"on\">$option</option>\n";
       $found=1;
    } else {
       $optionlist.="<option $value>$option</option>\n";
    }
       }
       $optionlist.="<option value=\"TYPEDINVALUE\">Type in value</option>\n";
       if (($found) || (!$selected)) {
    $result.=$description.'&nbsp;<select name="'."$Apache::lonxml::curdepth.$name".'">
          '.$optionlist.'
         </select>';
     } else {      } else {
       $optionlist.="<option>$option</option>\n";   $result.=&text_arg($description,$name,$token,$size);
     }      }
   }      return $result;
   $optionlist.="<option value=\"TYPEDINVALUE\">Type in value</option>\n";  }
   if ($found) {  
     $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">  #----------------------------------------------------- browse
        '.$optionlist.'  sub browse {
       </select></td></tr><tr><td colspan="3">';      # insert a link to call up the filesystem browser (lonindexer)
   } else {      my ($id, $mode) = @_;
     $result.=&text_arg($description,$name,$token,$size);      my $form    = 'lonhomework';
   }      my $element;
   return $result;      if (! defined($mode) || $mode eq 'attribute') {
           $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth.$id");
       } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
           $element = &Apache::lonnet::escape('homework_edit_'.
                                              $Apache::lonxml::curdepth);
       }
       my $result = <<"ENDBUTTON";
   <a href=\"javascript:openbrowser('$form','$element')\"\>Browse</a>
   ENDBUTTON
       return $result;
   }
   
   #----------------------------------------------------- browse
   sub search {
       # insert a link to call up the filesystem browser (lonindexer)
       $_ = shift;
       my $form    = 'lonhomework';
       my $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth.$_");
       my $result = <<"ENDBUTTON";
   <a href=\"javascript:opensearcher('$form','$element')\"\>Search</a>
   ENDBUTTON
       return $result;
 }  }
   
   
 1;  1;
 __END__  __END__
   
   =head1 NAME
   
   Apache::edit - edit mode helpers
   
   =head1 SYNOPSIS
   
   Invoked by many homework and xml related modules.
   
    &Apache::edit::SUBROUTINENAME(ARGUMENTS);
   
   =head1 INTRODUCTION
   
   This module outputs HTML syntax helpful for the rendering of edit
   mode interfaces.
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   =head1 HANDLER SUBROUTINE
   
   There is no handler subroutine.
   
   =head1 OTHER SUBROUTINES
   
   =over 4
   
   =item *
   
   initialize_edit() : initialize edit (set colordepth to zero)
   
   =item *
   
   tag_start($target,$token,$description) : provide deletion and insertion lists
   for the manipulation of a start tag; return a scalar string
   
   =item *
   
   tag_end($target,$token,$description) : ending syntax corresponding to
   &tag_start. return a scalar string.
   
   =item *
   
   start_table($token) : start table; update colordepth; return scalar string.
   
   =item *
   
   end_table() : reduce color depth; end table; return scalar string
   
   =item *
   
   start_spanning_row() : start a new table row spanning the 'edit' environment.
   
   =item *
   
   start_row() : start a new table row and element. 
   
   =item *
   
   end_row() : end current table element and row.
   
   =item *
   
   movebuttons($target,$token) : move-up and move-down buttons; return scalar
   string
   
   =item *
   
   deletelist($target,$token) : provide a yes option in an HTML select element;
   return scalar string
   
   =item *
   
   handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
   $style) : respond to a user delete request by passing relevant stack
   and array information to various rendering functions; return a scalar string
   
   =item *
   
   get_insert_list($token) : provide an insertion list based on possibilities
   from lonxml; return a scalar string
   
   =item *
   
   insertlist($target,$token) : api that uses get_insert_list;
   return a scalar string
   
   =item *
   
   handleinsert($token) : provide an insertion list based on possibilities
   from lonxml; return a scalar string
   
   =item *
   
   get_insert_list($token) : provide an insertion list based on possibilities
   from lonxml; return a scalar string
   
   =item *
   browse($elementname) : provide a link which will open up the filesystem
   browser (lonindexer) and, once a file is selected, place the result in
   the form element $elementname.
   
   =item *
   search($elementname) : provide a link which will open up the filesystem
   searcher (lonsearchcat) and, once a file is selected, place the result in
   the form element $elementname.
   
   =item *
   editline(tag,data,description,size): Provide a <input type="text" ../> for
   single-line text entry.  This is to be used for text enclosed by tags, not
   arguements/parameters associated with a tag.
   
   =back
   
   incomplete...
   
   =cut
Removed from v.1.25  
changed lines
  Added in v.1.46

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