as_psgi_app becomes to_psgi_app, factor dispatcher sugar out into Web::Dispatch:...

[catagits/Web-Simple.git] / lib / Web / Dispatch / Wrapper.pm

diff --git a/lib/Web/Dispatch/Wrapper.pm b/lib/Web/Dispatch/Wrapper.pm
index 5ff6068..f60a435 100644 (file)
--- a/lib/Web/Dispatch/Wrapper.pm
+++ b/lib/Web/Dispatch/Wrapper.pm
@@ -1,12 +1,34 @@
 package Web::Dispatch::Wrapper;
 
 use strictures 1;
+use Exporter 'import';
 
-sub from_code {
+our @EXPORT_OK = qw(dispatch_wrapper redispatch_to response_filter);
+
+sub dispatch_wrapper (&) {
   my ($class, $code) = @_;
   bless(\$code, $class);
 }
 
+sub redispatch_to {
+  my ($class, $new_path) = @_;
+  $class->from_code(sub {
+    $_[1]->({ %{$_[0]}, PATH_INFO => $new_path });
+  });
+}
+
+sub response_filter (&) {
+  my ($class, $code) = @_;
+  $class->from_code(sub {
+    my @result = $_[1]->($_[0]);
+    if (@result) {
+      $code->(@result);
+    } else {
+      ()
+    }
+  });
+}
+
 sub wrap {
   my $code = ${$_[0]};
   my $app = $_[1];