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Diff for /loncom/homework/edit.pm between versions 1.24 and 1.28

version 1.24, 2001/11/08 20:42:32 version 1.28, 2002/01/21 16:40:57
Line 1 Line 1
 # The LearningOnline Network with CAPA   # The LearningOnline Network with CAPA 
 # edit mode helpers  # edit mode helpers
   #
   # $Id$
   #
   # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
 # 3/20 Guy  # 3/20 Guy
   # 01/10/02 Matthew
 package Apache::edit;   package Apache::edit; 
   
 use strict;  use strict;
Line 30  sub tag_start { Line 56  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 80  sub end_table { Line 104  sub end_table {
   return $result;    return $result;
 }  }
   
   sub start_spanning_row { return '<tr><td colspan="3">';}
   sub start_row          { return '<tr><td>';            }
   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 260  sub insert_script { Line 288  sub insert_script {
   return "\n<script type=\"loncapa/perl\">\n</script>";    return "\n<script type=\"loncapa/perl\">\n</script>";
 }  }
   
   sub textarea_sizes {
     my ($data)=@_;
     my $count=0;
     my $maxlength=-1;
     foreach (split ("\n", $$data)) { $count++;
    if (length($_) > $maxlength) { $maxlength = length($_); }
         }
     my $rows = $count;
     my $cols = $maxlength;
     return ($rows,$cols);
   }
   
 sub editfield {  sub editfield {
   my ($tag,$data,$description,$minwidth,$minheight)=@_;    my ($tag,$data,$description,$minwidth,$minheight)=@_;
   
   my $count=0;    my ($rows,$cols)=&textarea_sizes(\$data);
   my $maxlength=-1;    if ($cols > 80) { $cols = 80; }
   map { $count++;    if ($cols < $minwidth ) { $cols = $minwidth; }
  if (length($_) > $maxlength) { $maxlength = length ($_); }    if ($rows < $minheight) { $rows = $minheight; }
       } split ("\n", $data);    if ($description) { $description="<br />".$description."<br />"; }
   if ($maxlength > 80) { $maxlength = 80; }    return "$description\n&nbsp;&nbsp;&nbsp;<textarea rows=\"$rows\" cols=\"$cols\" name=\"homework_edit_".$Apache::lonxml::curdepth."\">$data</textarea>\n";
   if ($maxlength < $minwidth) { $maxlength = $minwidth; }  
   if ( $count < $minheight) { $count = $minheight; }  
   if ($description) {  
     $description="<br />".$description."<br />";  
   }  
   return "$description\n&nbsp;&nbsp;&nbsp;<textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea>\n";  
 #  return "<br />\n&lt;$tag&gt;<br />\n&nbsp;&nbsp;&nbsp;<textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea><br />\n&lt;/$tag&gt;<br />\n";  
 }  }
   
 sub modifiedfield {  sub modifiedfield {
Line 287  sub modifiedfield { Line 320  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 362  sub select_arg { Line 388  sub select_arg {
   }    }
   $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">    $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
        '.$optionlist.'         '.$optionlist.'
       </select></td></tr><tr><td colspan="3">';        </select>';
   return $result;    return $result;
 }  }
   
Line 384  sub select_or_text_arg { Line 410  sub select_or_text_arg {
   if ($found) {    if ($found) {
     $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">      $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
        '.$optionlist.'         '.$optionlist.'
       </select></td></tr><tr><td colspan="3">';        </select>';
   } else {    } else {
     $result.=&text_arg($description,$name,$token,$size);      $result.=&text_arg($description,$name,$token,$size);
   }    }
Line 392  sub select_or_text_arg { Line 418  sub select_or_text_arg {
 }  }
 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
   
   =back
   
   incomplete...
   
   =cut
Removed from v.1.24  
changed lines
  Added in v.1.28

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