--- loncom/homework/edit.pm 2001/11/07 21:24:15 1.23
+++ loncom/homework/edit.pm 2002/01/21 16:40:57 1.28
@@ -1,6 +1,32 @@
# The LearningOnline Network with CAPA
# edit mode helpers
+#
+# $Id: edit.pm,v 1.28 2002/01/21 16:40:57 matthew Exp $
+#
+# 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
+# 01/10/02 Matthew
package Apache::edit;
use strict;
@@ -30,10 +56,8 @@ sub tag_start {
&deletelist($target,$token)
."</td>
<td>".
- &insertlist($target,$token).
- "</td>
-</tr><tr><td colspan=\"3\">\n";
-#<td>".
+ &insertlist($target,$token).&end_row().&start_spanning_row();
+#<td>".
# &movebuttons($target,$token).
# "</tr><tr><td colspan=\"3\">\n";
}
@@ -80,6 +104,10 @@ sub end_table {
return $result;
}
+sub start_spanning_row { return '<tr><td colspan="3">';}
+sub start_row { return '<tr><td>'; }
+sub end_row { return '</td></tr>'; }
+
sub movebuttons {
my ($target,$token) = @_;
my $result='<input type="submit" name="moveup.'.
@@ -189,6 +217,15 @@ sub insert_responseparam {
<responseparam />';
}
+sub insert_formularesponse {
+ return '
+<formularesponse answer="" samples="">
+ <textline />
+ <hintgroup>
+ </hintgroup>
+</formularesponse>';
+}
+
sub insert_numericalresponse {
return '
<numericalresponse answer="">
@@ -251,22 +288,27 @@ sub insert_script {
return "\n<script type=\"loncapa/perl\">\n</script>";
}
+sub textarea_sizes {
+ my ($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,$cols);
+}
+
sub editfield {
my ($tag,$data,$description,$minwidth,$minheight)=@_;
- my $count=0;
- my $maxlength=-1;
- map { $count++;
- if (length($_) > $maxlength) { $maxlength = length ($_); }
- } split ("\n", $data);
- if ($maxlength > 80) { $maxlength = 80; }
- if ($maxlength < $minwidth) { $maxlength = $minwidth; }
- if ( $count < $minheight) { $count = $minheight; }
- if ($description) {
- $description="<br />".$description."<br />";
- }
- return "$description\n <textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea>\n";
-# return "<br />\n<$tag><br />\n <textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea><br />\n</$tag><br />\n";
+ my ($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 "$description\n <textarea rows=\"$rows\" cols=\"$cols\" name=\"homework_edit_".$Apache::lonxml::curdepth."\">$data</textarea>\n";
}
sub modifiedfield {
@@ -278,13 +320,6 @@ sub modifiedfield {
# &Apache::lonxml::debug("I want homework_edit_$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;
}
@@ -353,7 +388,7 @@ sub select_arg {
}
$result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
'.$optionlist.'
- </select></td></tr><tr><td colspan="3">';
+ </select>';
return $result;
}
@@ -375,7 +410,7 @@ sub select_or_text_arg {
if ($found) {
$result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
'.$optionlist.'
- </select></td></tr><tr><td colspan="3">';
+ </select>';
} else {
$result.=&text_arg($description,$name,$token,$size);
}
@@ -383,3 +418,105 @@ sub select_or_text_arg {
}
1;
__END__
+
+=head1 NAME
+
+Apache::edit - edit mode helpers
+
+=head1 SYNOPSIS
+
+Invoked by many homework and xml related modules.
+
+ &Apache::edit::SUBROUTINENAME(ARGUMENTS);
+
+=head1 INTRODUCTION
+
+This module outputs HTML syntax helpful for the rendering of edit
+mode interfaces.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 HANDLER SUBROUTINE
+
+There is no handler subroutine.
+
+=head1 OTHER SUBROUTINES
+
+=over 4
+
+=item *
+
+initialize_edit() : initialize edit (set colordepth to zero)
+
+=item *
+
+tag_start($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