--- loncom/homework/edit.pm	2002/11/11 22:37:23	1.41
+++ loncom/homework/edit.pm	2003/09/08 21:10:53	1.61
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # edit mode helpers
 #
-# $Id: edit.pm,v 1.41 2002/11/11 22:37:23 www Exp $
+# $Id: edit.pm,v 1.61 2003/09/08 21:10:53 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -40,6 +40,9 @@ use HTML::Entities();
 # depth of nesting of edit
 $Apache::edit::colordepth=0;
 @Apache::edit::inserttag=();
+# image-type responses: active background image and curdepth at definition
+$Apache::edit::bgimgsrc='';
+$Apache::edit::bgimgsrccurdepth='';
 
 sub initialize_edit {
   $Apache::edit::colordepth=0;
@@ -60,10 +63,17 @@ sub tag_start {
   &deletelist($target,$token)
   ."</td>
 <td>".
-    &insertlist($target,$token).&end_row().&start_spanning_row();
+    &insertlist($target,$token);
 #<td>". 
 #  &movebuttons($target,$token).
 #    "</tr><tr><td colspan=\"3\">\n";
+    my @help;# = Apache::lonxml::helpinfo($token);
+    if ($help[0]) {
+	$result .= '<td align="right" valign="top">' .
+	    Apache::loncommon::help_open_topic(@help) .
+	    '</td>';
+    } else { $result .= "<td>&nbsp;</td>"; }
+    $result .= &end_row().&start_spanning_row();
   }
   return $result;
 }
@@ -72,13 +82,7 @@ sub tag_end {
   my ($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";
+    $result.="</td></tr>".&end_table()."\n";
   }
   return $result;
 }
@@ -122,7 +126,7 @@ sub end_table {
   return $result;
 }
 
-sub start_spanning_row { return '<tr><td colspan="3" bgcolor="#DDDDDD">';}
+sub start_spanning_row { return '<tr><td colspan="4" bgcolor="#DDDDDD">';}
 sub start_row          { return '<tr><td bgcolor="#DDDDDD">';            }
 sub end_row            { return '</td></tr>';          }
 
@@ -159,7 +163,7 @@ sub handle_delete {
   }
   if (!$result) {
     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();
     &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
     &Apache::lonxml::end_tag($tagstack,$parstack,$token);
@@ -307,6 +311,16 @@ sub insert_essayresponse {
 </essayresponse>';
 }
 
+sub insert_imageresponse {
+  return '
+<imageresponse max="1">
+    <foilgroup>
+    </foilgroup>
+    <hintgroup>
+    </hintgroup>
+</imageresponse>';
+}
+
 sub insert_optionresponse {
   return '
 <optionresponse max="10">
@@ -327,6 +341,28 @@ sub insert_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_displaytitle   { return '<displaytitle />'; }
 sub insert_hintpart {
@@ -343,12 +379,30 @@ sub insert_numericalhint {
 </numericalhint>';
 }
 
+sub insert_stringhint {
+  return '
+<stringhint>
+</stringhint>';
+}
+
+sub insert_formulahint {
+  return '
+<formulahint>
+</formulahint>';
+}
+
 sub insert_radiobuttonhint {
   return '
 <radiobuttonhint>
 </radiobuttonhint>';
 }
 
+sub insert_optionhint {
+  return '
+<optionhint>
+</optionhint>';
+}
+
 sub insert_startouttext {
   return "<startouttext />\n<endouttext />";
 }
@@ -361,9 +415,11 @@ sub textarea_sizes {
   my ($data)=@_;
   my $count=0;
   my $maxlength=-1;
-  foreach (split ("\n", $$data)) { $count++;
-	if (length($_) > $maxlength) { $maxlength = length($_); }
-      }
+  foreach (split ("\n", $$data)) {
+      $count+=int(length($_)/79);
+      $count++;
+      if (length($_) > $maxlength) { $maxlength = length($_); }
+  }
   my $rows = $count;
   my $cols = $maxlength;
   return ($rows,$cols);
@@ -409,16 +465,21 @@ sub modifiedfield {
 # 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 $arg (@args) {
+    my ($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"};
+    my $element=&html_element_name($arg);
+    my $newvalue=$ENV{"form.$element"};
     &Apache::lonxml::debug(" for:$arg: cur is :$value: new is :$newvalue:");
-    if ($value ne $newvalue) {
-      $token->[2]->{$arg}=$newvalue;
-      $rebuild=1;
+    if (defined($newvalue) && $value ne $newvalue) {
+	if (ref($newvalue) eq 'ARRAY') {
+	    $token->[2]->{$arg}=join(',',@$newvalue);
+	} else {
+	    $token->[2]->{$arg}=$newvalue;
+	}
+	$rebuild=1;
     }
   }
   return $rebuild;
@@ -447,14 +508,58 @@ sub rebuild_tag {
   return $result;
 }
 
+sub html_element_name {
+    my ($name) = @_;
+    return $name.'_'.$Apache::lonxml::curdepth;
+}
+
+sub hidden_arg {
+    my ($name,$token) = @_;
+    my $result;
+    my $arg=$token->[2]{$name};
+    $result='<input name="'.&html_element_name($name).
+	'" type="hidden" value="'.$arg.'" />';
+    return $result;
+}
+
+sub checked_arg {
+    my ($description,$name,$list,$token) = @_;
+    my $result;
+    my $optionlist="";
+    my $allselected=$token->[2]{$name};
+    $result=$description;
+    foreach my $option (@$list) {
+	my ($value,$text);
+	if ( ref($option) eq 'ARRAY') {
+	    $value='value="'.$$option[0].'"';
+	    $text=$$option[1];
+	    $option=$$option[0];
+	} else {
+	    $text=$option;
+	    $value='value="'.$option.'"';
+	}
+	$result.="<nobr><input type='checkbox' $value name='".
+	    &html_element_name($name)."'";
+	foreach my $selected (split(/,/,$allselected)) {
+	    &Apache::lonxml::error("wha $selected $option<br />");
+	    if ( $selected eq $option ) {
+		$result.=" checked='on' ";
+		last;
+	    }
+	}
+	$result.=" />$text</nobr>\n";
+    }
+    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".
+  $result=$description.'&nbsp;<input name="'.&html_element_name($name).
     '" type="text" value="'.$arg.'" size="'.$size.'" />';
-  return $result;
+  return '<nobr>'.$result.'</nobr>';
 }
 
 sub select_arg {
@@ -476,10 +581,10 @@ sub select_arg {
 	    $optionlist.="<option $value >$option</option>\n";
 	}
     }
-    $result.=$description.'<select name="'.
-	"$Apache::lonxml::curdepth.$name".'">
+    $result.='<nobr>'.$description.'&nbsp;<select name="'.
+	&html_element_name($name).'">
        '.$optionlist.'
-      </select>';
+      </select></nobr>';
     return $result;
 }
 
@@ -504,25 +609,110 @@ sub select_or_text_arg {
 	    $optionlist.="<option $value>$option</option>\n";
 	}
     }
-    $optionlist.="<option value=\"TYPEDINVALUE\">Type in value</option>\n";
-    if (($found) || (!$selected)) {
-	$result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
-       '.$optionlist.'
-      </select>';
-    } else {
-	$result.=&text_arg($description,$name,$token,$size);
+    $optionlist.="<option value=\"TYPEDINVALUE\"".
+ 	((!$found)?' selected="on"':'').
+ 	">Type in value</option>\n";
+#
+    my $element=&html_element_name($name);
+    my $selectelement='select_list_'.$element;
+    my $typeinelement='type_in_'.$element;
+    my $typeinvalue=($found?'':$selected);
+#
+    my $hiddenvalue='this.form.'.$element.'.value';
+    my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
+    my $selectedvalue='this.form.'.$selectelement.
+	     '.options['.$selectedindex.'].value';
+    my $typedinvalue='this.form.'.$typeinelement.'.value';
+    my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
+#
+    return (<<ENDSELECTORTYPE);
+<nobr>
+$description
+&nbsp;<select name="$selectelement"
+onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }"
+$optionlist
+</select>
+<input type="text" size="$size" name="$typeinelement"
+       value="$typeinvalue" 
+onChange="$hiddenvalue=$typedinvalue;"
+onFocus="$selectedindex=$selecttypeinindex-1;" />
+<input type="hidden" name="$element" value="$selected" />
+</nobr>
+ENDSELECTORTYPE
+}
+
+#----------------------------------------------------- image coordinates
+# single image coordinates, x, y 
+sub entercoords {
+    my ($idx,,$idy,$mode,$width,$height) = @_;
+    unless ($Apache::edit::bgimgsrc) { return ''; }
+    if ($idx) { $idx.='_'; }
+    if ($idy) { $idy.='_'; }
+    my $bgfile=&Apache::lonnet::escape($Apache::edit::bgimgsrc);
+    my $form    = 'lonhomework';
+    my $element;
+    if (! defined($mode) || $mode eq 'attribute') {
+        $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth");
+    } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
+        $element = &Apache::lonnet::escape('homework_edit_'.
+                                           $Apache::lonxml::curdepth);
+    }
+    my $formheight='';
+    if ($height) {
+	$formheight='&formheight='.$height.'_'.$Apache::edit::bgimgsrccurdepth;
+    }
+    my $formwidth='';
+    if ($width) {
+	$formwidth='&formwidth='.$width.'_'.$Apache::edit::bgimgsrccurdepth;
     }
+    my $result = <<"ENDBUTTON";
+<a href="/cgi-bin/imagechoice.pl?formname=$form&file=$bgfile&formx=$idx$element&formy=$idy$element$formheight$formwidth"
+target="imagechoice">Click Coordinates</a>
+ENDBUTTON
     return $result;
 }
 
+# coordinate pair (x1,y1)-(x2,y2)
+sub entercoordpair {
+    my ($id,$mode,$width,$height) = @_;
+    unless ($Apache::edit::bgimgsrc) { return ''; }
+    my $bgfile=&Apache::lonnet::escape($Apache::edit::bgimgsrc);
+    my $form    = 'lonhomework';
+    my $element;
+    if (! defined($mode) || $mode eq 'attribute') {
+        $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
+    } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
+        $element = &Apache::lonnet::escape('homework_edit_'.
+                                           $Apache::lonxml::curdepth);
+    }
+    my $formheight='';
+    if ($height) {
+	$formheight='&formheight='.$height.'_'.$Apache::edit::bgimgsrccurdepth;
+    }
+    my $formwidth='';
+    if ($width) {
+	$formwidth='&formwidth='.$width.'_'.$Apache::edit::bgimgsrccurdepth;
+    }
+    my $result = <<"ENDBUTTON";
+<a href="/cgi-bin/imagechoice.pl?mode=pair&formname=$form&file=$bgfile$formheight$formwidth&formcoord=$element"
+target="imagechoice">Click Coordinate Pair</a>
+ENDBUTTON
+    return $result;
+}
 #----------------------------------------------------- browse
 sub browse {
     # insert a link to call up the filesystem browser (lonindexer)
-    $_ = shift;
+    my ($id, $mode) = @_;
     my $form    = 'lonhomework';
-    my $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth.$_");
+    my $element;
+    if (! defined($mode) || $mode eq 'attribute') {
+        $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
+    } elsif ($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','$element')\"\>Browse</a>
+<a href=\"javascript:openbrowser('$form','$element')\"\>Select</a>
 ENDBUTTON
     return $result;
 }
@@ -530,9 +720,15 @@ ENDBUTTON
 #----------------------------------------------------- browse
 sub search {
     # insert a link to call up the filesystem browser (lonindexer)
-    $_ = shift;
+    my ($id, $mode) = @_;
     my $form    = 'lonhomework';
-    my $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth.$_");
+    my $element;
+    if (! defined($mode) || $mode eq 'attribute') {
+        $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
+    } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
+        $element = &Apache::lonnet::escape('homework_edit_'.
+                                           $Apache::lonxml::curdepth);
+    }
     my $result = <<"ENDBUTTON";
 <a href=\"javascript:opensearcher('$form','$element')\"\>Search</a>
 ENDBUTTON