--- loncom/homework/edit.pm	2003/01/19 08:13:54	1.43
+++ loncom/homework/edit.pm	2003/06/04 23:04:34	1.53
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # edit mode helpers
 #
-# $Id: edit.pm,v 1.43 2003/01/19 08:13:54 albertel Exp $
+# $Id: edit.pm,v 1.53 2003/06/04 23:04:34 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 {
   $Apache::edit::colordepth=0;
@@ -159,7 +162,7 @@ sub handle_delete {
   }
   if (!$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);
@@ -337,6 +340,18 @@ sub insert_rankresponse {
 </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 {
@@ -353,12 +368,30 @@ 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 />";
 }
@@ -371,9 +404,11 @@ 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);
@@ -424,9 +459,10 @@ sub get_new_args {
   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 $newvalue) {
+    if (defined($newvalue) && $value ne $newvalue) {
       $token->[2]->{$arg}=$newvalue;
       $rebuild=1;
     }
@@ -457,12 +493,26 @@ 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 $result;
+}
+
 sub text_arg {
   my ($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;
 }
@@ -486,8 +536,8 @@ sub select_arg {
 	    $optionlist.="<option $value >$option</option>\n";
 	}
     }
-    $result.=$description.'<select name="'.
-	"$Apache::lonxml::curdepth.$name".'">
+    $result.=$description.'&nbsp;<select name="'.&html_element_name($name).
+        '">
        '.$optionlist.'
       </select>';
     return $result;
@@ -516,7 +566,8 @@ sub select_or_text_arg {
     }
     $optionlist.="<option value=\"TYPEDINVALUE\">Type in value</option>\n";
     if (($found) || (!$selected)) {
-	$result.=$description.'<select name="'."$Apache::lonxml::curdepth.$name".'">
+	$result.=$description.'&nbsp;<select name="'.&html_element_name($name)
+            .'">
        '.$optionlist.'
       </select>';
     } else {
@@ -525,6 +576,64 @@ sub select_or_text_arg {
     return $result;
 }
 
+#----------------------------------------------------- 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)
@@ -532,7 +641,7 @@ sub browse {
     my $form    = 'lonhomework';
     my $element;
     if (! defined($mode) || $mode eq 'attribute') {
-        $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth.$id");
+        $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
         $element = &Apache::lonnet::escape('homework_edit_'.
                                            $Apache::lonxml::curdepth);
@@ -546,9 +655,15 @@ 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