Added TrackObjects panel

lib/Plack/Middleware/Debug/TrackObjects.pm

@@ -0,0 +1,66 @@
+package Plack::Middleware::Debug::TrackObjects;
+use strict;
+use parent qw(Plack::Middleware::Debug::Base);
+
+sub run {
+    my($self, $env, $panel) = @_;
+
+    unless ($INC{"Devel/TrackObjects.pm"}) {
+        return $panel->disable;
+    }
+
+    return sub {
+        my $res = shift;
+
+        my $track = Devel::TrackObjects->show_tracked_detailed;
+        my @content;
+
+        foreach (@$track){
+            if (length($_->[0]) > 100){
+                $_->[0] = substr($_->[0],0,100);
+            }
+            push @content, $_->[0], $_->[1].' - '.$_->[2];
+        }
+
+        $panel->nav_subtitle('Number:'.scalar(@content)/2);
+
+        $panel->content(
+            $self->render_list_pairs([@content])
+        );
+    };
+
+}
+
+1;
+
+__END__
+
+=head1 NAME
+
+Plack::Middleware::Debug::TrackObjects - Track Objects panel
+
+=head1 SYNOPSIS
+
+  enable "Debug";
+  enable "Debug::TrackObjects";
+
+And when you load the application with plackup or other launcher:
+
+  # track everything
+  plackup -MDevel::TrackObjects=/^/ myapp.psgi
+
+You can specify the namespace with a regular expression. See
+L<Devel::TrackObjects> for details.
+
+=head1 DESCRIPTION
+
+This debug panel captures objects created in a request cycle by using
+L<Devel::TrackObjects>. You can run your applications multiple times
+(i.e. refreshing the page) to see if the count of tracked objects
+increases, in which case there are leaked objects.
+
+=head1 SEE ALSO
+
+L<Plack::Middleware::Debug> L<Devel::TrackObjects>
+
+=cut