--- loncom/homework/edit.pm	2003/12/18 19:59:24	1.74
+++ loncom/homework/edit.pm	2004/07/27 23:35:33	1.85
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # edit mode helpers
 #
-# $Id: edit.pm,v 1.74 2003/12/18 19:59:24 albertel Exp $
+# $Id: edit.pm,v 1.85 2004/07/27 23:35:33 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -25,9 +25,7 @@
 #
 # http://www.lon-capa.org/
 #
-# 3/20 Guy
-# 01/10/02 Matthew
-# 03/06/02 Matthew
+
 package Apache::edit; 
 
 use strict;
@@ -289,8 +287,7 @@ sub insert_formularesponse {
 <formularesponse answer="" samples="">
     <textline />
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </formularesponse>';
 }
@@ -300,8 +297,7 @@ sub insert_numericalresponse {
 <numericalresponse answer="">
     <textline />
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </numericalresponse>';
 }
@@ -311,8 +307,7 @@ sub insert_stringresponse {
 <stringresponse answer="" type="">
     <textline />
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </stringresponse>';
 }
@@ -330,8 +325,7 @@ sub insert_imageresponse {
     <foilgroup>
     </foilgroup>
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </imageresponse>';
 }
@@ -342,8 +336,7 @@ sub insert_optionresponse {
     <foilgroup options="">
     </foilgroup>
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </optionresponse>';
 }
@@ -353,8 +346,7 @@ sub insert_organicresponse {
 <organicresponse>
     <textline />
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </organicresponse>';
 }
@@ -371,8 +363,7 @@ sub insert_radiobuttonresponse {
     <foilgroup>
     </foilgroup>
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </radiobuttonresponse>';
 }
@@ -382,8 +373,7 @@ sub insert_reactionresponse {
 <reactionresponse>
     <textline />
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </reactionresponse>';
 }
@@ -394,8 +384,7 @@ sub insert_rankresponse {
     <foilgroup options="">
     </foilgroup>
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </rankresponse>';
 }
@@ -408,8 +397,7 @@ sub insert_matchresponse {
       </itemgroup>
     </foilgroup>
     <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
     </hintgroup>
 </matchresponse>';
 }
@@ -427,8 +415,7 @@ sub insert_hintpart {
 sub insert_hintgroup {
   return '
 <hintgroup>
-    <startouttext/>
-    <endouttext />
+    <startouttext /><endouttext />
 </hintgroup>';
 }
 
@@ -463,11 +450,11 @@ sub insert_optionhint {
 }
 
 sub insert_startouttext {
-    return "<startouttext />\n<endouttext />";
+    return "<startouttext /><endouttext />";
 }
 
 sub insert_script {
-    return "\n<script type=\"loncapa/perl\">\n</script>";
+    return "\n<script type=\"loncapa/perl\"></script>";
 }
 
 sub textarea_sizes {
@@ -486,7 +473,7 @@ sub textarea_sizes {
 
 sub editline {
     my ($tag,$data,$description,$size)=@_;
-    $data=&HTML::Entities::encode($data);
+    $data=&HTML::Entities::encode($data,'<>&"');
     if ($description) { $description="<br />".$description."<br />"; }
     my $result = <<"END";
 $description
@@ -497,17 +484,29 @@ END
 }
 
 sub editfield {
-    my ($tag,$data,$description,$minwidth,$minheight)=@_;
+    my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
 
     my ($rows,$cols)=&textarea_sizes(\$data);
+    if (&Apache::lonhtmlcommon::htmlareabrowser() &&
+	!&Apache::lonhtmlcommon::htmlareablocked()) {
+	$rows+=7;      # make room for HTMLarea
+	$minheight+=7; # make room for HTMLarea
+    }
     if ($cols > 80) { $cols = 80; }
     if ($cols < $minwidth ) { $cols = $minwidth; }
     if ($rows < $minheight) { $rows = $minheight; }
     if ($description) { $description="<br />".$description."<br />"; }
+    if ($usehtmlarea) {
+	push @Apache::lonxml::htmlareafields,'homework_edit_'.
+	    $Apache::lonxml::curdepth;
+    }
     return $description."\n".'&nbsp;&nbsp;&nbsp;<textarea rows="'.$rows.
 	'" cols="'.$cols.'" name="homework_edit_'.
+	$Apache::lonxml::curdepth.'" id="homework_edit_'.
 	$Apache::lonxml::curdepth.'">'.
-	&HTML::Entities::encode($data).'</textarea>'."\n";
+	&HTML::Entities::encode($data,'<>&"').'</textarea>'.
+	($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
+			 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
 }
 
 sub modifiedfield {
@@ -543,6 +542,9 @@ sub get_new_args {
 		$token->[2]->{$arg}=$newvalue;
 	    }
 	    $rebuild=1;
+	} elsif (!defined($newvalue) && defined($value)) {
+	    delete($token->[2]->{$arg});
+	    $rebuild=1;
 	}
     }
     return $rebuild;
@@ -711,11 +713,11 @@ ENDSELECTORTYPE
 #----------------------------------------------------- image coordinates
 # single image coordinates, x, y 
 sub entercoords {
-    my ($idx,,$idy,$mode,$width,$height) = @_;
+    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 $bgfile=&Apache::lonnet::escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
     my $form    = 'lonhomework';
     my $element;
     if (! defined($mode) || $mode eq 'attribute') {
@@ -724,48 +726,65 @@ sub entercoords {
         $element = &Apache::lonnet::escape('homework_edit_'.
                                            $Apache::lonxml::curdepth);
     }
-    my $formheight='';
+    my $id=$Apache::lonxml::curdepth;
+    my %data=("imagechoice.$id.type"      =>'point',
+	      "imagechoice.$id.formname"  =>$form,
+	      "imagechoice.$id.formx"     =>"$idx$element",
+	      "imagechoice.$id.formy"     =>"$idy$element",
+	      "imagechoice.$id.file"      =>$bgfile,
+	      "imagechoice.$id.formcoord" =>$element);
     if ($height) {
-	$formheight='&formheight='.$height.'_'.$Apache::edit::bgimgsrccurdepth;
+	$data{"imagechoice.$id.formheight"}=$height.'_'.
+	    $Apache::edit::bgimgsrccurdepth;
     }
-    my $formwidth='';
     if ($width) {
-	$formwidth='&formwidth='.$width.'_'.$Apache::edit::bgimgsrccurdepth;
+	$data{"imagechoice.$id.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
+    &Apache::lonnet::appenv(%data);
+    my $text="Click Coordinates";
+    my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
     return $result;
 }
 
-# coordinate pair (x1,y1)-(x2,y2)
-sub entercoordpair {
-    my ($id,$mode,$width,$height) = @_;
+# coordinates (x1,y1)-(x2,y2)...
+# mode can be either box, or polygon
+sub entercoord {
+    my ($idx,$mode,$width,$height,$type) = @_;
     unless ($Apache::edit::bgimgsrc) { return ''; }
-    my $bgfile=&Apache::lonnet::escape($Apache::edit::bgimgsrc);
+    my $bgfile=&Apache::lonnet::escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
     my $form    = 'lonhomework';
     my $element;
     if (! defined($mode) || $mode eq 'attribute') {
-        $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
+        $element = &Apache::lonnet::escape("$idx\_$Apache::lonxml::curdepth");
     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
         $element = &Apache::lonnet::escape('homework_edit_'.
                                            $Apache::lonxml::curdepth);
     }
-    my $formheight='';
+    my $id=$Apache::lonxml::curdepth;
+    my %data=("imagechoice.$id.type"      =>$type,
+	      "imagechoice.$id.formname"  =>$form,
+	      "imagechoice.$id.file"      =>$bgfile,
+	      "imagechoice.$id.formcoord" =>$element);
     if ($height) {
-	$formheight='&formheight='.$height.'_'.$Apache::edit::bgimgsrccurdepth;
+	$data{"imagechoice.$id.formheight"}=$height.'_'.
+	    $Apache::edit::bgimgsrccurdepth;
     }
-    my $formwidth='';
     if ($width) {
-	$formwidth='&formwidth='.$width.'_'.$Apache::edit::bgimgsrccurdepth;
+	$data{"imagechoice.$id.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
+    &Apache::lonnet::appenv(%data);
+    my $text="Enter Coordinates";
+    if ($type eq 'polygon') { $text='Create Polygon Data'; }
+    my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
     return $result;
 }
+
+sub deletecoorddata {
+    &Apache::lonnet::delenv("imagechoice\\.");
+}
+
 #----------------------------------------------------- browse
 sub browse {
     # insert a link to call up the filesystem browser (lonindexer)