--- loncom/homework/chemresponse.pm	2004/07/15 18:53:11	1.36
+++ loncom/homework/chemresponse.pm	2007/04/18 00:48:06	1.73
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # chemical equation style response
 #
-# $Id: chemresponse.pm,v 1.36 2004/07/15 18:53:11 albertel Exp $
+# $Id: chemresponse.pm,v 1.73 2007/04/18 00:48:06 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -30,9 +30,13 @@ package Apache::chemresponse;
 use strict;
 use Apache::lonxml;
 use Apache::lonnet;
+use Apache::lonlocal;
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
+ 
 
 BEGIN {
-    &Apache::lonxml::register('Apache::chemresponse',('organicresponse','organicstructure','reactionresponse'));
+    &Apache::lonxml::register('Apache::chemresponse',('organicresponse','organicstructure','reactionresponse','chem'));
 }
 
 sub chem_standard_order {
@@ -63,7 +67,7 @@ sub chem_standard_order {
 }
 
 sub separate_jme_window {
-    my ($smile_input,$jme_input,$molecule,$options)=@_;
+    my ($smile_input,$jme_input,$molecule,$options,$shown_text)=@_;
     my $smilesection;
     if (defined($smile_input)) {
 	$smilesection=<<SMILESECTION;
@@ -80,11 +84,14 @@ JMESECTION
     }
 
     if ($molecule) { $molecule='<param name="jme" value="'.$molecule.'" />'; }
-    my $body=<<CHEMPAGE;
-<html>
-<head>
-<title>Molecule Editor</title>
-<script language="JavaScript">
+    my $insert_answer;
+    if ($shown_text eq '') { 
+	$insert_answer=
+	    '<input type="button" name="submit" value="Insert Answer" onclick="javascript:submitSmiles();" />';
+    }
+
+    my $js = <<CHEMJS;
+<script type="text/javascript">
 function submitSmiles() {
     jmeFile = document.applets.JME.jmeFile();
     if (jmeFile == "") {
@@ -98,35 +105,94 @@ function submitSmiles() {
 function openHelpWindow() {
     window.open("/adm/jme/jme_help.html","","scrollbars=yes,resizable=yes,width=500,height=600");
 }
+function substituent(r) {document.applets.JME.setSubstituent(r);}
 </script>
-</head>
-<body bgcolor="#ffffff">
+CHEMJS
+
+    my $start_page = 
+        &Apache::loncommon::start_page('Molecule Editor',undef,
+				       {'only_body' => 1,
+					'js_ready'  => 1,
+					'bgcolor'   => '#FFFFFF',});
+    my $end_page =
+ 	&Apache::loncommon::end_page({'js_ready' => 1,});
+	
+    my $body=<<CHEMPAGE;
+$js
 <center>
-<applet code="JME.class" name="JME" archive="/adm/jme/JME.jar" width="440" height="390">
+<form>
+  <table width="440"><tr>
+    <td></td>
+    <td align="right">
+      <select onchange="javascript:substituent(options[selectedIndex].text)">
+        <option>Select substituent</option>
+        <option>-C(=O)OH</option>
+        <option>-C(=O)OMe</option>
+        <option>-OC(=O)Me</option>
+        <option>-CMe3</option>
+        <option>-CF3</option>
+        <option>-CCl3</option>
+        <option>-NO2</option>
+        <option>-SO2-NH2</option>
+        <option>-NH-SO2-Me</option>
+        <option>-NMe2</option>
+        <option>-C#N</option>
+        <option>-C#C-Me</option>
+        <option>-C#CH</option>
+      </select>
+    </td></tr>
+  </table>
+<applet code="JME.class" name="JME" archive="/adm/jme/JME.jar" width="440" height="390" mayscript>
 You have to enable Java and JavaScript on your machine.
 $molecule
 <param name="options" value="$options" />
 </applet><br />
-<font face="arial,helvetica,sans-serif" size=-1><a href="http://www.molinspiration.com/jme/index.html">JME Editor</a> courtesy of Peter Ertl, Novartis</font>
-<form>
-<input type="button" name="submit" value="Insert Answer" onClick = "submitSmiles();" />
+<font face="arial,helvetica,sans-serif" size="-1"><a href="http://www.molinspiration.com/jme/index.html">JME Editor</a> courtesy of Peter Ertl, Novartis</font>
+<br />
+$insert_answer
 <br />
-<input type="button" value="  Close  " onClick = "window.close()" />
+<input type="button" value="  Close  " onclick = "javascript:window.close()" />
 &nbsp;&nbsp;
-<input type="button" value="  Help  " onClick = "openHelpWindow()" />
+<input type="button" value="  Help  " onclick = "javascript:openHelpWindow()" />
 </form>
 </center>
-</body>
-</html>
 CHEMPAGE
-    $body=&HTML::Entities::encode($body,'<>&"');
-    $body=~s/\n/ /g;
+
+    $body=&Apache::loncommon::js_ready($body);
+    my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
+    my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
+    my $display=&mt('Draw Molecule');
+    if (defined($shown_text)) { $display=&mt($shown_text); }
+    my $function = 
+	'LONCAPA_draw_molecule_'.&Apache::lonhtmlcommon::get_uniq_name();
     my $result=<<CHEMINPUT;
-<input type="button" value="Draw Molecule" onClick="javascript:editor=window.open('','','width=500,height=500,scrollbars=no,resizable=yes');editor.document.open('text/html','replace');editor.document.writeln('$body')" />
+<script type="text/javascript">
+    function $function() {
+	editor=window.open($nothing,'jmeedit','width=500,height=500,menubar=no,scrollbars=no,resizable=yes');
+	editor.$docopen;
+	editor.document.write('$start_page $body $end_page');
+	editor.document.close();
+	editor.focus();
+    }
+</script>
+<input type="button" value="$display" onclick="javascript:$function();void(0);" />
 CHEMINPUT
     return $result;
 }
 
+sub jme_img {
+    my ($jme,$smile,$width,$options)=@_;
+    my $id=&Apache::loncommon::get_cgi_id();
+    my $result='<img alt="'.$smile.'" src="/cgi-bin/convertjme.pl?'.$id.'"';
+    if ($options =~ /border/) { $result.= ' border="1"'; }
+    $result.=' />';
+    &Apache::lonnet::appenv('cgi.'.$id.'.JME'   =>
+			    &escape($jme),
+			    'cgi.'.$id.'.PNG'   => 1,
+			    'cgi.'.$id.'.WIDTH' => $width);
+    return $result;
+}
+
 sub start_organicresponse {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;
@@ -135,17 +201,34 @@ sub start_organicresponse {
     if ($target eq 'meta') {
 	$result=&Apache::response::meta_package_write('organicresponse');
     } elsif ($target eq 'web') {
-	my $molecule;
-	if (defined($Apache::lonhomework::history{"resource.$partid.$id.molecule"})) {
-	    $molecule=$Apache::lonhomework::history{"resource.$partid.$id.molecule"};
-	} else {
-	    $molecule=&Apache::lonxml::get_param('molecule',$parstack,
+	my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
 						 $safeeval);
+	if (  &Apache::response::show_answer() && $jmeanswer ne '') {
+	    my $options=&Apache::lonxml::get_param('options',$parstack,
+						   $safeeval);
+	    my $width=&Apache::lonxml::get_param('width',$parstack,
+						   $safeeval);
+	    my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
+							 $safeeval);
+	    $result.=&jme_img($jmeanswer,$answers[0],$width,$options);
+	} else {
+	    my $molecule;
+	    if (defined($Apache::lonhomework::history{"resource.$partid.$id.molecule"})) {
+		$molecule=$Apache::lonhomework::history{"resource.$partid.$id.molecule"};
+	    } else {
+		$molecule=&Apache::lonxml::get_param('molecule',$parstack,
+						     $safeeval);
+	    }
+	    my $options=&Apache::lonxml::get_param('options',$parstack,
+						   $safeeval);
+	    my $shown_text;
+	    if (&Apache::response::show_answer()) {
+		$shown_text="Show Your Last Answer";
+	    }
+	    $result=&separate_jme_window("HWVAL_$id","MOLECULE_$id",$molecule,
+					 $options,$shown_text);
+	    $result.= '<input type="hidden" name="MOLECULE_'.$id.'" value="" />';
 	}
-	my $options=&Apache::lonxml::get_param('options',$parstack,
-					       $safeeval);
-	$result=&separate_jme_window("HWVAL_$id","MOLECULE_$id",$molecule,$options);
-	$result.= '<input type="hidden" name="MOLECULE_'.$id.'" value="" />';
     } elsif ($target eq 'edit') {
 	$result .=&Apache::edit::tag_start($target,$token);
 	my $options=&Apache::lonxml::get_param('options',$parstack,
@@ -162,7 +245,9 @@ sub start_organicresponse {
 	$result .='</nobr><br /><nobr>';
 	$result .=&Apache::edit::text_arg('Correct Answer:','answer',
 					  $token,40);
-	$result .=&Apache::edit::hidden_arg('jmeanswer',$token);
+	$result .='</nobr><br /><nobr>';
+	$result .=&Apache::edit::text_arg('JME string of the answer (automatically updated when using the Draw Molecule button):',
+					  'jmeanswer',$token);
 	my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
 						 $safeeval);
 	$result .=&separate_jme_window(
@@ -177,26 +262,40 @@ sub start_organicresponse {
 				      ['reaction','Is a reaction'],
 				      ['number','Able to number atoms'] ],
 					     ,$token);
+	$result .=&Apache::edit::text_arg('Width of correct answer image:',
+					  'width',$token,10);
 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {
 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
 						     $safeeval,'molecule',
 						     'answer','jmeanswer',
-						     'options');
+						     'options','width');
 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
     }
+
     return $result;
 }
 
 sub end_organicresponse {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;
-    if ($target eq 'grade' && defined($ENV{'form.submitted'})) {
+
+    my $partid = $Apache::inputtags::part;
+    my $id = $Apache::inputtags::response['-1'];
+
+    if ($target eq 'grade' 
+	&& &Apache::response::submitted()
+	&& $Apache::lonhomework::type eq 'exam') {
+
+	&Apache::response::scored_response($partid,$id);
+
+    } elsif ($target eq 'grade' 
+	&& &Apache::response::submitted()
+	&& $Apache::lonhomework::type ne 'exam') {
+
 	&Apache::response::setup_params($$tagstack[-1],$safeeval);
 	my $response = &Apache::response::getresponse();
 	if ( $response =~ /[^\s]/) {
-	    my $partid = $Apache::inputtags::part;
-	    my $id = $Apache::inputtags::response['-1'];
 	    my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
 	    my %previous = &Apache::response::check_for_previous($response,$partid,$id);
 	    $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
@@ -210,9 +309,12 @@ sub end_organicresponse {
 		    $ad='INCORRECT';
 		}
 	    }
+	    if ($ad && $Apache::lonhomework::type eq 'survey') {
+		$ad='SUBMITTED';
+	    }
 	    &Apache::response::handle_previous(\%previous,$ad);
 	    $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
-	    $Apache::lonhomework::results{"resource.$partid.$id.molecule"}=$ENV{"form.MOLECULE_$id"};
+	    $Apache::lonhomework::results{"resource.$partid.$id.molecule"}=$env{"form.MOLECULE_$id"};
 	}
     } elsif ($target eq "edit") {
 	$result.= &Apache::edit::tag_end($target,$token,'');
@@ -225,7 +327,24 @@ sub end_organicresponse {
 	}
 	$result.=&Apache::response::answer_footer('organicresponse');
     }
-    &Apache::response::end_response;
+    if ($target eq 'web') {
+	&Apache::response::setup_prior_tries_hash(\&format_prior_answer_organic,
+						  ['molecule'])
+    }
+
+    if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
+	$target eq 'tex' || $target eq 'analyze') {
+	&Apache::lonxml::increment_counter(&Apache::response::repetition());
+    }
+    &Apache::response::end_response();
+    return $result;
+}
+
+sub format_prior_answer_organic {
+    my ($mode,$answer,$other_data) = @_;
+    my $result=&mt('Smile representation: "[_1]"','<tt>'.$answer.'</tt>');
+    my $jme=$other_data->[0];
+    $result.=&jme_img($jme,$answer,400);
     return $result;
 }
 
@@ -241,22 +360,26 @@ sub start_organicstructure {
 	if ($options =~ /border/) { $result.= ' border="1"'; }
 	$result.=' />';
 	&Apache::lonnet::appenv(
-            'cgi.'.$id.'.JME'   => &Apache::lonnet::escape($molecule),
+            'cgi.'.$id.'.JME'   => &escape($molecule),
 	    'cgi.'.$id.'.PNG' => 1,
 	    'cgi.'.$id.'.WIDTH' => $width );
     } elsif ($target eq 'tex') {
-	my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,1);
+	my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,undef,1);
+	my $webwidth=&Apache::lonxml::get_param('width', $parstack, $safeeval);
+	my $webheight=&Apache::lonxml::get_param('height', $parstack, $safeeval);
+	if (!$webheight) { $webheight = $webwidth; }
 	if (!$texwidth) { $texwidth='90'; }
+	$result = "%DYNAMICIMAGE:$webwidth:$webheight:$texwidth\n";
 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
 	my $options=&Apache::lonxml::get_param('options',$parstack,$safeeval);
-	my $filename = $ENV{'user.name'}.'_'.$ENV{'user.domain'}.
+	my $filename = $env{'user.name'}.'_'.$env{'user.domain'}.
 	    '_'.time.'_'.$$.int(rand(1000)).'_organicstructure';
 	my $id=$filename;
 	&Apache::lonnet::appenv(
-		     'cgi.'.$id.'.JME'   => &Apache::lonnet::escape($molecule),
+		     'cgi.'.$id.'.JME'   => &escape($molecule),
 		     'cgi.'.$id.'.PS' => 1,
 		     'cgi.'.$id.'.WIDTH' => $texwidth );
-	$id=&Apache::lonnet::escape($id);
+	$id=&escape($id);
 	&Apache::lonxml::register_ssi("/cgi-bin/convertjme.pl?$id");
 	if ($options =~ /border/) { $result.= '\fbox{'; }
 	$result .= '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics[width='.$texwidth.' mm]{'.$filename.'.eps}';
@@ -305,18 +428,32 @@ sub end_organicstructure {
 
 sub edit_reaction_button {
     my ($id,$field,$reaction)=@_;
-    my $id_es=&Apache::lonnet::escape($id);
-    my $field_es=&Apache::lonnet::escape($field);
-    my $reaction_es=&Apache::lonnet::escape($reaction);
+    my $id_es=&escape($id);
+    my $field_es=&escape($field);
+    my $reaction_es=&escape($reaction);
+    my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
+    my $start_page = 
+	&Apache::loncommon::start_page('LON-CAPA Reaction Editor',undef,
+				       {'frameset'    => 1,
+					'js_ready'    => 1,
+					'add_entries' => {
+					    'rows'   => "30%,*",
+					    'border' => "0",}},);
+    my $end_page = 
+	&Apache::loncommon::end_page({'frameset' => 1,
+				      'js_ready' => 1});
     my $result=<<EDITREACTION;
 <script type="text/javascript">
+// <!--
     function create_reaction_window_${id}_${field} () {
 	editor=window.open('','','width=500,height=270,scrollbars=no,resizable=yes');
-	editor.document.open('text/html','replace');
-	editor.document.writeln('<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><html> <head><title>LON-CAPA Reaction Editor</title></head><frameset rows="30%,*" border="0">  <frame src="/res/adm/pages/reactionresponse/reaction_viewer.html" name="viewer" scrolling="no" />  <frame src="/res/adm/pages/reactionresponse/reaction_editor.html?reaction=$reaction_es&id=$id_es&field=$field_es" name="editor" scrolling="no" /> </frameset> </html>');
+	editor.$docopen;
+	editor.document.writeln('$start_page <frame src="/res/adm/pages/reactionresponse/reaction_viewer.html?inhibitmenu=yes" name="viewer" scrolling="no" />  <frame src="/res/adm/pages/reactionresponse/reaction_editor.html?inhibitmenu=yes&reaction=$reaction_es&id=$id_es&field=$field_es" name="editor" scrolling="no" /> $end_page');
+	editor.document.close();
     }
+// -->
 </script>
-<input type='button' value='Edit Answer' onClick="javascript:create_reaction_window_${id}_${field}();void(0);" />
+<input type='button' value='Edit Answer' onclick="javascript:create_reaction_window_${id}_${field}();void(0);" />
 EDITREACTION
     return $result;
 }
@@ -338,8 +475,11 @@ sub start_reactionresponse {
 	}
 	if (  &Apache::response::show_answer() ) {
 	    my $ans=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
-	    $ans=~s/(\\|\')/\\$1/g;
-	    $Apache::inputtags::answertxt{$id}=&Apache::run::run("return &chemparse('$ans');",$safeeval);
+	    if (!$Apache::lonxml::default_homework_loaded) {
+		&Apache::lonxml::default_homework_load($safeeval);
+	    }
+	    @Apache::scripttag::parser_env = @_;
+	    $Apache::inputtags::answertxt{$id}=[&Apache::run::run("return &chemparse(q\0$ans\0);",$safeeval)];
 	}
     } elsif ($target eq "edit") {
 	$result .=&Apache::edit::tag_start($target,$token);
@@ -350,7 +490,7 @@ sub start_reactionresponse {
 	$result .=&edit_reaction_button($id,&Apache::edit::html_element_name('answer'),$answer).'</nobr>';
 	my $initial=&Apache::lonxml::get_param('initial',$parstack,$safeeval);
 	$result.='<nobr>'.
-	    &Apache::edit::text_arg('Initial Reation:','initial',$token,40);
+	    &Apache::edit::text_arg('Initial Reaction:','initial',$token,40);
 	$result .=&edit_reaction_button($id,&Apache::edit::html_element_name('initial'),$initial).'</nobr>';
 	
 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
@@ -366,12 +506,23 @@ sub start_reactionresponse {
 sub end_reactionresponse {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;
-    if ($target eq 'grade' && defined($ENV{'form.submitted'})) {
+
+    my $partid = $Apache::inputtags::part;
+    my $id = $Apache::inputtags::response['-1'];
+
+    if ($target eq 'grade' 
+	&& &Apache::response::submitted()
+	&& $Apache::lonhomework::type eq 'exam') {
+
+	&Apache::response::scored_response($partid,$id);
+
+    } elsif ($target eq 'grade' 
+	&& &Apache::response::submitted()
+	&& $Apache::lonhomework::type ne 'exam') {
+
 	&Apache::response::setup_params($$tagstack[-1],$safeeval);
 	my $response = &Apache::response::getresponse();
 	if ( $response =~ /[^\s]/) {
-	    my $partid = $Apache::inputtags::part;
-	    my $id = $Apache::inputtags::response['-1'];
 	    my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
 	    my %previous = &Apache::response::check_for_previous($response,$partid,$id);
 	    $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
@@ -385,6 +536,9 @@ sub end_reactionresponse {
 		    $ad='INCORRECT';
 		}
 	    }
+	    if ($ad && $Apache::lonhomework::type eq 'survey') {
+		$ad='SUBMITTED';
+	    }
 	    &Apache::response::handle_previous(\%previous,$ad);
 	    $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
 	}
@@ -400,7 +554,42 @@ sub end_reactionresponse {
 	}
 	$result.=&Apache::response::answer_footer('reactionresponse');
     }
-    &Apache::response::end_response;
+    if ($target eq 'web') {
+	&Apache::response::setup_prior_tries_hash(\&format_prior_response_reaction);
+    }
+
+    if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
+	$target eq 'tex' || $target eq 'analyze') {
+	&Apache::lonxml::increment_counter(&Apache::response::repetition());
+    }
+    &Apache::response::end_response();
+    return $result;
+}
+
+sub format_prior_response_reaction {
+    my ($mode,$answer) =@_;
+    return '<span class="LC_prior_reaction">'.
+	    &HTML::Entities::encode($answer,'"<>&').'</span>';
+}
+
+sub start_chem {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
+    my $result = '';
+    my $inside = &Apache::lonxml::get_all_text_unbalanced("/chem",$parser);
+    if ($target eq 'tex' || $target eq 'web') {
+	$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
+	if (!$Apache::lonxml::default_homework_loaded) {
+	    &Apache::lonxml::default_homework_load($safeeval);
+	}
+	@Apache::scripttag::parser_env = @_;
+	$result=&Apache::run::run("return &chemparse(q\0$inside\0);",$safeeval);
+    }    
+    return $result;
+}
+
+sub end_chem {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
+    my $result = '';
     return $result;
 }