[WWcvs] webwork2: Add "disabled" previous and next buttons so that a student who clicks on the next button on the first problem and then

[dpvc v. a. <we...@ma...>]

Log Message:
-----------
Add "disabled" previous and next buttons so that a student who clicks
on the next button on the first problem and then clicks again
(expecting another next) doesn't get "up" by accident.

Modified Files:
--------------
    webwork2/lib/WeBWorK:
        ContentGenerator.pm
    webwork2/lib/WeBWorK/ContentGenerator:
        Problem.pm

Revision Data
-------------
Index: ContentGenerator.pm
===================================================================
RCS file: /webwork/cvs/system/webwork2/lib/WeBWorK/ContentGenerator.pm,v
retrieving revision 1.192
retrieving revision 1.193
diff -Llib/WeBWorK/ContentGenerator.pm -Llib/WeBWorK/ContentGenerator.pm -u -r1.192 -r1.193
--- lib/WeBWorK/ContentGenerator.pm
+++ lib/WeBWorK/ContentGenerator.pm
@@ -549,7 +549,7 @@
 	# grab some interesting data from the request
 	my $courseID = $urlpath->arg("courseID");
 	my $userID = $r->param('user');
-	my $eUserID    = $r->param("effectiveUser");
+	my $eUserID   = $r->param("effectiveUser");
 	my $setID     = $urlpath->arg("setID");
 	my $problemID = $urlpath->arg("problemID");
 	
@@ -1297,29 +1297,29 @@
 	my $r = $self->r;
 	my $ce = $r->ce;
 	my %args = %$args;
-	
+
 	my $auth = $self->url_authen_args;
 	my $prefix = $ce->{webworkURLs}->{htdocs}."/images";
-	
+
 	my @result;
 	while (@links) {
 		my $name = shift @links;
 		my $url = shift @links;
 		my $img = shift @links;
 		my $html = 
-			($img && $args{style} eq "images") 
+			($img && $args{style} eq "images")
 			? CGI::img(
-				{src=>($prefix."/".$img.$args{imagesuffix}), 
+				{src=>($prefix."/".$img.$args{imagesuffix}),
 				border=>"",
 				alt=>"$name"})
 			: $name;
-		unless($img && !$url) {
+#		unless($img && !$url) {  ## these are now "disabled" versions in grey -- DPVC
 			push @result, $url
 				? CGI::a({-href=>"$url?$auth$tail"}, $html)
 				: $html;
-		}
+#		}
 	}
-	
+
 	return join($args{separator}, @result) . "\n";
 }
 
@@ -1519,7 +1519,7 @@
 sub hidden_authen_fields {
 	my ($self) = @_;
 	
-	return $self->hidden_fields("user", "effectiveUser", "key");
+	return $self->hidden_fields("user", "effectiveUser", "key", "theme");
 }
 
 =item hidden_proctor_authen_fields()
@@ -1590,7 +1590,7 @@
 sub url_authen_args {
 	my ($self) = @_;
 	
-	return $self->url_args("user", "effectiveUser", "key");
+	return $self->url_args("user", "effectiveUser", "key", "theme");
 }
 
 =item url_state_args()
@@ -1728,6 +1728,7 @@
 		$params{user}          = undef unless exists $params{user};
 		$params{effectiveUser} = undef unless exists $params{effectiveUser};
 		$params{key}           = undef unless exists $params{key};
+		$params{theme}         = undef unless exists $params{theme};
 	}
 	
 	my $url;
Index: Problem.pm
===================================================================
RCS file: /webwork/cvs/system/webwork2/lib/WeBWorK/ContentGenerator/Problem.pm,v
retrieving revision 1.210
retrieving revision 1.211
diff -Llib/WeBWorK/ContentGenerator/Problem.pm -Llib/WeBWorK/ContentGenerator/Problem.pm -u -r1.210 -r1.211
--- lib/WeBWorK/ContentGenerator/Problem.pm
+++ lib/WeBWorK/ContentGenerator/Problem.pm
@@ -737,7 +737,7 @@
 			courseID => $courseID, setID => $setID, problemID => $prevID);
 		push @links, "Previous Problem", $r->location . $prevPage->path, "navPrev";
 	} else {
-		push @links, "Previous Problem", "", "navPrev";
+		push @links, "Previous Problem", "", "navPrevGrey";
 	}
 	
 	push @links, "Problem List", $r->location . $urlpath->parent->path, "navProbList";
@@ -747,7 +747,7 @@
 			courseID => $courseID, setID => $setID, problemID => $nextID);
 		push @links, "Next Problem", $r->location . $nextPage->path, "navNext";
 	} else {
-		push @links, "Next Problem", "", "navNext";
+		push @links, "Next Problem", "", "navNextGrey";
 	}
 	
 	my $tail = "";