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Diff for /loncom/homework/edit.pm between versions 1.1 and 1.25

version 1.1, 2001/03/22 21:21:29 version 1.25, 2001/12/04 14:47:33
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
 package Apache::edit;   package Apache::edit; 
   
 use strict;  use strict;
 use Apache::lonnet;  use Apache::lonnet;
   
   # Global Vars
   # default list of colors to use in editing
   @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
   # depth of nesting of edit
   $Apache::edit::colordepth=0;
   
   sub initialize_edit {
     $Apache::edit::colordepth=0;
   }
   
 sub tag_start {  sub tag_start {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$description) = @_;
   my $result='';    my $result='';
     if ($target eq "edit") {
   $result.="<table border=\"1\"><tr><td>&lt;$token->[1]&gt;</td>      my $tag=$token->[1];
 <td><input type=\"submit\" name=\"delete_$Apache::lonxml::curdepth\" value=\"Delete\" /></td>      if (!$description) {
 <td><input type=\"submit\" name=\"insert_$Apache::lonxml::curdepth\" value=\"Insert\" /></td>        $description=&Apache::lonxml::description($token);
         if (!$description) { $description="&lt;$tag&gt;"; }
       }
       $result.= &start_table($token)."<tr><td>$description</td>
   <td>Delete".
     &deletelist($target,$token)
     ."</td>
   <td>".
     &insertlist($target,$token).
       "</td>
 </tr><tr><td colspan=\"3\">\n";  </tr><tr><td colspan=\"3\">\n";
   #<td>".
   #  &movebuttons($target,$token).
   #    "</tr><tr><td colspan=\"3\">\n";
     }
   return $result;    return $result;
 }  }
   
 sub tag_end {  sub tag_end {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$description) = @_;
     my $result='';
     if ($target eq 'edit') {
       my $tag=$token->[1];
       if (!defined($description)) {
         $result.="</td></tr><tr><td>&lt;/$tag&gt;</td><td colspan=\"2\">&nbsp;</td>";
       } else {
         if ($description ne '') { $result.="</td></tr><tr><td>$description</td><td colspan=\"2\">&nbsp;</td>"; }
       }
       $result.="</tr>".&end_table()."\n";
     }
     return $result;
   }
   
   sub start_table {
     my ($token)=@_;
     my $tag = $token->[1];
     my $tagnum;
     foreach my $namespace (reverse @Apache::lonxml::namespace) {
       my $testtag=$namespace.'::'.$tag;
       $tagnum=$Apache::lonxml::insertlist{"$testtag.num"};
       if (defined($tagnum)) { last; }
     }
     if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
     my $color = $Apache::lonxml::insertlist{"$tagnum.color"};
     if (!defined($color)) {
       $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
     }
     $Apache::edit::colordepth++;
     my $result="<table bgcolor=\"$color\" width=\"100%\" border=\"5\">";
     return $result;
   }
   
   sub end_table {
     $Apache::edit::colordepth--;
     my $result="</table>";
     return $result;
   }
   
   sub movebuttons {
     my ($target,$token) = @_;
     my $result='<input type="submit" name="moveup.'.
       $Apache::lonxml::curdepth.'" value="Move Up" />';
     $result.='<input type="submit" name="movedown.'.
       $Apache::lonxml::curdepth.'" value="Move Down" />';
     return $result;
   }
   
   sub deletelist {
     my ($target,$token) = @_;
     my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
   <option></option>
   <option>Yes</option>
   </select>";
     return $result;
   }
   
   sub handle_delete {
     if (!$ENV{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
     my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result=0;
     if ($space) {
       my $sub1="$space\:\:delete_$token->[1]";
       {
         no strict 'refs';
         if (defined &$sub1) {
    $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
         }
       }
     }
     if (!$result) {
       my $endtag='/'.$token->[1];
       my $bodytext=&Apache::lonxml::get_all_text($endtag,$$parser[$#$parser]);
       $$parser['-1']->get_token();
       &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
       &Apache::lonxml::end_tag($tagstack,$parstack,$token);
     }
     return 1;
   }
   
   sub get_insert_list {
     my ($token) = @_;
   my $result='';    my $result='';
     my @tagnums= ();
     #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
     if ($Apache::lonxml::insertlist{"$token->[1].which"}) {
       push (@tagnums, @{ $Apache::lonxml::insertlist{"$token->[1].which"} });
     }
     foreach my $namespace (@Apache::lonxml::namespace) {
       if ($Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"}) {
         push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"} });
       }
     }
     if (@tagnums) {
       foreach my $tagnum (@tagnums) {
         $result.='<option value="'.$tagnum.'">'.$Apache::lonxml::insertlist{"$tagnum.description"}."</option>\n";
       }
       if ($result) { $result='<option selected="on"></option>'.$result; }
     }
     return $result;
   }
   
   sub insertlist {
     my ($target,$token) = @_;
     my $result;
     if ($target eq 'edit') {
       my $optionlist= &get_insert_list($token);
       if ($optionlist) {
         $result = "Insert:
   <select name=\"insert_$Apache::lonxml::curdepth\">
   $optionlist
   </select>"
       } else {
         $result="&nbsp;";
       }
     }
     return $result;
   }
   
   sub handle_insert {
     if ($ENV{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
     my $result;
     my $tagnum = $ENV{"form.insert_$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 tag $newtag, $func was not defined.");
       }
     }
     return $result;
   }
   
   sub insert_responseparam {
     return '
       <responseparam />';
   }
   
   sub insert_formularesponse {
     return '
   <formularesponse answer="" samples="">
       <textline />
       <hintgroup>
       </hintgroup>
   </formularesponse>';
   }
   
   $result.="</td></tr><tr><td>&lt;/$token->[1]&gt;</td></tr></table>\n";  sub insert_numericalresponse {
     return '
   <numericalresponse answer="">
       <textline />
       <hintgroup>
       </hintgroup>
   </numericalresponse>';
   }
   
   sub insert_stringresponse {
     return '
   <stringresponse answer="" type="">
       <textline />
       <hintgroup>
       </hintgroup>
   </stringresponse>';
   }
   
   sub insert_optionresponse {
     return '
   <optionresponse max="10">
       <foilgroup options="">
       </foilgroup>
       <hintgroup>
       </hintgroup>
   </optionresponse>';
   }
   
   sub insert_radiobuttonresponse {
     return '
   <radiobuttonresponse max="10">
       <foilgroup>
       </foilgroup>
       <hintgroup>
       </hintgroup>
   </radiobuttonresponse>';
   }
   
   sub insert_displayduedate { return '<displayduedate />'; }
   sub insert_displaytitle   { return '<displaytitle />'; }
   sub insert_hintpart {
     return '
   <hintpart on="default">
       <startouttext/>
       <endouttext />
   </hintpart>';
   }
   
   sub insert_numericalhint {
     return '
   <numericalhint>
   </numericalhint>';
   }
   
   sub insert_startouttext {
     return "<startouttext />\n<endouttext />";
   }
   
   sub insert_script {
     return "\n<script type=\"loncapa/perl\">\n</script>";
   }
   
   sub textarea_sizes {
     my ($data)=@_;
     my $count=0;
     my $maxlength=-1;
     map { $count++;
    if (length($_) > $maxlength) { $maxlength = length($_); }
         } split ("\n", $$data);
     my $rows = $count;
     my $cols = $maxlength;
     return ($rows,$cols);
   }
   
   sub editfield {
     my ($tag,$data,$description,$minwidth,$minheight)=@_;
   
     my ($rows,$cols)=&textarea_sizes(\$data);
     if ($cols > 80) { $cols = 80; }
     if ($cols < $minwidth ) { $cols = $minwidth; }
     if ($rows < $minheight) { $rows = $minheight; }
     if ($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";
   }
   
   sub modifiedfield {
     my ($token) = @_;
     my $result;
   #  foreach my $envkey (sort keys %ENV) {
   #    &Apache::lonxml::debug("$envkey ---- $ENV{$envkey}");
   #  }
   #  &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
   #  &Apache::lonxml::debug($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;
   }
   
   # Returns a 1 if the token has been modified and you should rebuild the tag
   # side-effects, will modify the $token if new values are found
   sub get_new_args {
     my ($token,$parstack,$safeeval,@args)=@_;
     my $rebuild=0;
     foreach my $arg (@args) {
       #just want the string that it was set to
       my $value=$token->[2]->{$arg};
       my $newvalue=$ENV{"form.$Apache::lonxml::curdepth.$arg"};
       &Apache::lonxml::debug(" for:$arg: cur is :$value: new is :$newvalue:");
       if ($value ne $newvalue) {
         $token->[2]->{$arg}=$newvalue;
         $rebuild=1;
       }
     }
     return $rebuild;
   }
   
   # looks for /> on start tags
   sub rebuild_tag {
     my ($token) = @_;
     my $result;
     if ($token->[0] eq 'S') {
       $result = '<'.$token->[1];
       while (my ($key,$val)= each(%{$token->[2]})) {
         $val=~s:^\s+|\s+$::g;
         $val=~s:"::g; #"
         &Apache::lonxml::debug("setting :$key: to  :$val:");
         $result.=' '.$key.'="'.$val.'"';
       }
       if ($token->[4] =~ m:/>$:) {
         $result.=' />';
       } else {
         $result.='>';
       }
     } elsif ( $token->[0] eq 'E' ) {
       $result = '</'.$token->[1].'>';
     }
   return $result;    return $result;
 }  }
   
   sub text_arg {
     my ($description,$name,$token,$size) = @_;
     my $result;
     if (!defined $size) { $size=20; }
     my $arg=$token->[2]{$name};
     $result=$description.'<input name="'."$Apache::lonxml::curdepth.$name".
       '" type="text" value="'.$arg.'" size="'.$size.'" />';
     return $result;
   }
   
   sub select_arg {
     my ($description,$name,$list,$token) = @_;
     my $result;
     my $optionlist="";
     my $selected=$token->[2]{$name};
     foreach my $option (@$list) {
       if ( $selected eq $option ) {
         $optionlist.="<option selected=\"on\">$option</option>\n";
       } else {
         $optionlist.="<option>$option</option>\n";
       }
     }
     $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
          '.$optionlist.'
         </select></td></tr><tr><td colspan="3">';
     return $result;
   }
   
   sub select_or_text_arg {
     my ($description,$name,$list,$token,$size) = @_;
     my $result;
     my $optionlist="";
     my $found=0;
     my $selected=$token->[2]{$name};
     foreach my $option (@$list) {
       if ( $selected eq $option ) {
         $optionlist.="<option selected=\"on\">$option</option>\n";
         $found=1;
       } else {
         $optionlist.="<option>$option</option>\n";
       }
     }
     $optionlist.="<option value=\"TYPEDINVALUE\">Type in value</option>\n";
     if ($found) {
       $result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
          '.$optionlist.'
         </select></td></tr><tr><td colspan="3">';
     } else {
       $result.=&text_arg($description,$name,$token,$size);
     }
     return $result;
   }
 1;  1;
 __END__  __END__
Removed from v.1.1  
changed lines
  Added in v.1.25

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