--- loncom/homework/functionplotresponse.pm	2012/08/17 13:08:11	1.98
+++ loncom/homework/functionplotresponse.pm	2015/03/09 16:22:59	1.108
@@ -1,7 +1,7 @@
 # LearningOnline Network with CAPA
 # Functionplot responses
 #
-# $Id: functionplotresponse.pm,v 1.98 2012/08/17 13:08:11 www Exp $
+# $Id: functionplotresponse.pm,v 1.108 2015/03/09 16:22:59 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -49,7 +49,39 @@ BEGIN {
 # Return a true value if HTML5 should be used.
 
 sub useHTML5 {
-    return 1;
+    if ($env{'browser.type'} eq 'chrome') {
+        if ($env{'browser.version'} >= 14) {
+            return 1;
+        }
+    } elsif ($env{'browser.type'} eq 'safari') {
+        if ($env{'browser.os'} eq 'mac') {
+            my ($prefix,$version) = ($env{'browser.version'} =~ /^(\d*)(\d{3})\./); 
+            if ((!$env{'browser.mobile'}) || 
+                (($env{'browser.mobile'}) && length($prefix))) {
+                if ($version >= 536) {
+                    return 1;
+                }
+            }
+        }
+    } elsif ($env{'browser.type'} eq 'mozilla') {
+        if ($env{'browser.info'} =~ /^firefox\-(\d+)/) {
+            my $firefox = $1;
+            if ((($env{'browser.os'} eq 'mac') && ($firefox >= 20)) ||
+                (($env{'browser.os'} eq 'unix') && ($firefox >= 17)) ||
+                (($env{'browser.os'} eq 'win') && ($firefox >= 14))) {
+                return 1;
+            }
+        }
+    } elsif ($env{'browser.type'} eq 'explorer') { 
+        if (($env{'browser.os'} eq 'win') && ($env{'browser.version'} == 10)) {
+            return 1;
+        }
+    } elsif ($env{'browser.type'} eq 'opera') {
+        if ($env{'browser.version'} >= 18) {
+            return 1;
+        }
+    }
+    return 0;
 }
 
 #
@@ -155,7 +187,7 @@ sub java_geogebra_default_parameters {
         <param name="boxborder" value="false"  />
         <param name="centerimage" value="true"  />
 	<param name="cache_archive" value="geogebra.jar, geogebra_main.jar, geogebra_gui.jar, geogebra_cas.jar, geogebra_export.jar, geogebra_algos.jar, geogebra_javascript.jar, geogebra_properties.jar, jlatexmath.jar, jlm_cyrillic.jar, jlm_greek.jar" />
-	<param name="cache_version" value="4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0" />
+	<param name="cache_version" value="4.4.3.0,4.4.3.0,4.4.3.0,4.4.3.0,4.4.3.0,4.4.3.0,4.4.3.0,4.4.3.0,4.4.3.0,4.4.3.0,4.4.3.0" />
         <param name="framePossible" value="false" />
 
         <param name="showResetIcon" value="false" />
@@ -193,7 +225,7 @@ sub init_script {
       my $html5init='';
       if (&useHTML5()) {
           $html5init=
-           '<script type="text/javascript" language="javascript" src="/adm/geogebra/html5/web/test42/web/web.nocache.js"></script>';
+           '<script type="text/javascript" language="javascript" src="/adm/geogebra/web/web.nocache.js"></script>';
       }
       return (<<ENDGGBINIT);
 $html5init
@@ -807,7 +839,7 @@ sub start_backgroundplot {
              &Apache::edit::text_arg('Label on Plot:','label',
                                      $token,'8').
              &Apache::edit::text_arg('Color (hex code):','color',
-                                     $token,'8').
+                                     $token,'8', 'colorchooser').
              &Apache::edit::select_arg('Fixed location:','fixed',
                                   ['yes','no'],$token).
              &Apache::edit::end_row();
@@ -884,7 +916,7 @@ sub start_functionplotrule {
         $result=&Apache::edit::tag_start($target,$token,'Function Plot Graph Rule').
              &Apache::edit::text_arg('Index/Name:','index',
                                      $token,'10').'&nbsp;'.
-             &Apache::edit::select_arg(&mt('Function:'),'derivativeorder',
+             &Apache::edit::select_arg('Function:','derivativeorder',
                                   [['0','Function itself'],
                                    ['1','First derivative'],
                                    ['2','Second derivative'],
@@ -1428,7 +1460,7 @@ sub start_functionplotresponse {
   my $ylabel=&Apache::lonxml::get_param('ylabel',$parstack,$safeeval);
   if ($target eq 'edit') {
     $result.=&Apache::edit::start_table($token)
-       .'<tr><td><span class="LC_nobreak">'.&mt('Function Plot Question').'</span></td>'
+       .'<tr><td><span class="LC_nobreak">'.&Apache::loncommon::insert_folding_button().&mt('Function Plot Question').'</span></td>'
        .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
        .&Apache::edit::deletelist($target,$token).'&nbsp;&nbsp;&nbsp;'
        .&Apache::edit::insertlist($target,$token).'&nbsp;&nbsp;&nbsp;'
@@ -1482,7 +1514,7 @@ sub start_functionplotresponse {
                      $env{'form.counter'},$Apache::lonxml::curdepth);
       &Apache::lonxml::add_script_result(
           &Apache::loncommon::modal_adhoc_window($function_name,700,500,
-             '<pre>'.$Apache::functionplotresponse::ruleslog.'</pre>',
+             '<pre style="background-color:#ffffff;">'.$Apache::functionplotresponse::ruleslog.'</pre>',
               &mt('Rules Log'))."<br />");
   }
   return $result;
@@ -2015,7 +2047,7 @@ sub start_functionplotruleset {
    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
    if ($target eq 'edit') {
       return &Apache::edit::start_table($token).
-        '<tr><td><span class="LC_nobreak">'.&mt('Function Plot Rule Set').'</span></td>'
+        '<tr><td><span class="LC_nobreak">'.&Apache::loncommon::insert_folding_button().&mt('Function Plot Rule Set').'</span></td>'
        .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
        .&Apache::edit::deletelist($target,$token).'&nbsp;&nbsp;&nbsp;'.
         &Apache::edit::insertlist($target,$token).'&nbsp;&nbsp;&nbsp;'
@@ -2208,7 +2240,8 @@ sub start_functionplotelements {
 
    if ($target eq 'edit') {
       return &Apache::edit::start_table($token).
-        '<tr><td><span class="LC_nobreak">'.&mt('Function Plot Elements').'</span></td>'
+        '<tr><td><span class="LC_nobreak">'.&Apache::loncommon::insert_folding_button()
+       .&mt('Function Plot Elements').'</span></td>'
        .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
        .&Apache::edit::deletelist($target,$token).'&nbsp;&nbsp;&nbsp;'.
         &Apache::edit::insertlist($target,$token).'&nbsp;&nbsp;&nbsp;'