Add render_xls helper

Use github Mojo's new app->helper to make a render_xls simplifying things.

Signed-off-by: Zak B. Elep <zakame@zakame.net>

lib/Mojolicious/Plugin/WriteExcel.pm

@@ -13,8 +13,14 @@ use MojoX::Renderer::WriteExcel;
 sub register {
     my ( $self, $app ) = @_;
 
-    $app->types->type( xls => 'application/vnd.ms-excel');
+    $app->types->type( xls => 'application/vnd.ms-excel' );
     $app->renderer->add_handler( xls => MojoX::Renderer::WriteExcel->new );
+    $app->helper(
+        render_xls => sub {
+            my $self = shift;
+            $self->render( handler => 'xls', @_ );
+        }
+    );
 }
 
 1;

t/DemoXls

@@ -43,4 +43,14 @@ get '/demo_with_broken_column_width_1.xls' => sub {
     );
 };
 
+get '/demo_with_app_helper.xls' => sub {
+    shift->render_xls(
+        result => [
+            [qw(foo bar baz)],
+            [qw(lol wut bbq)],
+            [qw(kick ass module)],
+        ],
+    );
+};
+
 app->start;

t/renderer.t

@@ -3,7 +3,7 @@
 use strict;
 use warnings;
 
-use Test::More tests => 12;
+use Test::More tests => 15;
 use Test::Mojo;
 
 use File::Basename 'dirname';
@@ -27,3 +27,6 @@ $t->get_ok('/demo_with_column_width.xls')
 
 $t->get_ok('/demo_with_broken_column_width_1.xls')
   ->status_is(500)->content_type_is('text/html');
+
+$t->get_ok('/demo_with_app_helper.xls')
+    ->status_is(200)->content_type_is('application/vnd.ms-excel');