X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FCatalyst%2FComponent.pm;h=4b12fdab40932773a3a4addc2d8c79888862bec8;hb=d030cb977237ba7fa728eb00ab9c679388af3281;hp=feab1cf8a59684c2c71168c6e01620716cb5f6b6;hpb=22247e54ccd3fbdaf286e77304b96e61ecc43a0f;p=catagits%2FCatalyst-Runtime.git

diff --git a/lib/Catalyst/Component.pm b/lib/Catalyst/Component.pm
index feab1cf..4b12fda 100644
--- a/lib/Catalyst/Component.pm
+++ b/lib/Catalyst/Component.pm
@@ -4,7 +4,7 @@ use strict;
 use base qw/Class::Accessor::Fast Class::Data::Inheritable/;
 use NEXT;
 
-__PACKAGE__->mk_classdata($_) for qw/_config/;
+__PACKAGE__->mk_classdata($_) for qw/_config _plugins/;
 
 =head1 NAME
 
@@ -49,7 +49,10 @@ component loader with config() support and a process() method placeholder.
 
 =head1 METHODS
 
-=head2 new($c)
+=head2 new($c, $arguments)
+
+Called by COMPONENT to instantiate the component; should return an object
+to be stored in the application's component hash.
 
 =cut
 
@@ -62,7 +65,15 @@ sub new {
     return $self->NEXT::new( { %{ $self->config }, %{$arguments} } );
 }
 
-=head2 COMPONENT($c)
+=head2 COMPONENT($c, $arguments)
+
+If this method is present (as it is on all Catalyst::Component subclasses,
+it is called by Catalyst during setup_components with the application class
+as $c and any config entry on the application for this component (for example,
+in the case of MyApp::Controller::Foo this would be
+MyApp->config->{'Controller::Foo'}). The arguments are expected to be a hashref
+and are merged with the __PACKAGE__->config hashref before calling ->new to
+instantiate the component.
 
 =cut
 
@@ -100,14 +111,15 @@ sub COMPONENT {
 
 sub config {
     my $self = shift;
-    $self->_config( {} ) unless $self->_config;
+    my $config = $self->_config;
+    unless ($config) {
+        $self->_config( $config = {} );
+    }
     if (@_) {
-        my $config = @_ > 1 ? {@_} : $_[0];
-        while ( my ( $key, $val ) = each %$config ) {
-            $self->_config->{$key} = $val;
-        }
+        $config = { %{$config}, %{@_ > 1 ? {@_} : $_[0]} };
+        $self->_config($config);
     }
-    return $self->_config;
+    return $config;
 }
 
 =head2 $c->process()
@@ -120,6 +132,20 @@ sub process {
           . " did not override Catalyst::Component::process" );
 }
 
+=head1 OPTIONAL METHODS
+
+=head2 ACCEPT_CONTEXT($c, @args)
+
+Catalyst components are normally initalized during server startup, either
+as a Class or a Instance. However, some components require information about
+the current request. To do so, they can implement an ACCEPT_CONTEXT method.
+
+If this method is present, it is called during $c->comp/controller/model/view
+with the current $c and any additional args (e.g. $c->model('Foo', qw/bar baz/)
+would cause your MyApp::Model::Foo instance's ACCEPT_CONTEXT to be called with
+($c, 'bar', 'baz')) and the return value of this method is returned to the
+calling code in the application rather than the component itself.
+
 =head1 SEE ALSO
 
 L<Catalyst>, L<Catalyst::Model>, L<Catalyst::View>, L<Catalyst::Controller>.