1 package Reaction::UI::ViewPort::Collection;
4 use Scalar::Util qw/blessed/;
5 use aliased 'Reaction::InterfaceModel::Collection' => 'IM_Collection';
6 use aliased 'Reaction::UI::ViewPort::Object';
8 use namespace::clean -except => [ qw(meta) ];
9 extends 'Reaction::UI::ViewPort';
11 has members => (is => 'rw', isa => 'ArrayRef', lazy_build => 1);
13 has collection => (is => 'ro', isa => IM_Collection, required => 1);
14 has current_collection => (is => 'rw', isa => IM_Collection, lazy_build => 1);
16 has member_args => ( is => 'rw', isa => 'HashRef', lazy_build => 1);
17 has member_class => ( is => 'ro', isa => 'Str', lazy_build => 1);
20 my ($self, $args) = @_;
21 if( my $member_args = delete $args->{Member} ){
22 $self->member_args( $member_args );
26 sub _build_member_args { {} }
28 sub _build_member_class { Object };
30 after clear_current_collection => sub{
31 shift->clear_members; #clear the members the current collection changes, duh
34 sub _build_current_collection {
35 return $_[0]->collection;
38 #I'm not really sure why this is here all of a sudden.
39 sub model { shift->current_collection }
44 my $args = $self->member_args;
46 my $field_orders = {};
48 my $loc = join('-', $self->location, 'member');
49 my $class = $self->member_class;
51 #replace $i with a real unique identifier so that we don't run a risk of
52 # events being passed down to the wrong viewport. for now i disabled event
53 # passing until i fix this (groditi)
54 for my $obj ( $self->current_collection->members ) {
55 my $type = blessed $obj;
56 my $builder_cache = $builders->{$type} ||= {};
58 if( exists $args->{computed_field_order} ){
59 @order = (computed_field_order => $args->{computed_field_order});
60 } elsif( exists $field_orders->{$type} ) {
61 @order = (computed_field_order => $field_orders->{$type});
64 my $member = $class->new(
67 location => join('-', $loc, $i++),
68 builder_cache => $builder_cache,
72 #cache to prevent the sort function from having to be run potentially
74 $field_orders->{$type} ||= $member->computed_field_order unless @order;
75 push(@members, $member);
80 __PACKAGE__->meta->make_immutable;
89 Reaction::UI::ViewPort::Collection
93 Creates, from an InterfaceModel::Collection, a list of viewports representing
94 each member of the collection.
100 Required read-only L<InterfaceModel::Collection|Reaction::InterfaceModel::Collection>
101 This is the original collection.
103 =head2 current_collection
105 Read-only, lazy-building
106 L<InterfaceModel::Collection|Reaction::InterfaceModel::Collection>
107 This is the collection that will be used to create C<members> and should be
108 altered to reflect any ordering, paging, etc. By default this is the
109 same thing as C<collection>.
113 A read-write HASH ref of additional parameters to pass to the C<member_class>
114 constructor as items are instantiated.
118 The class to use when instantiating items to represent the member items.
120 See: L<Object|Reaction::UI::ViewPort::Object>,
121 L<Member|Reaction::UI::ViewPort::Grid::Member>,
122 L<Member::WithActions|Reaction::UI::ViewPort::Grid::Member::WithActions>,
124 =head1 INTERNAL METHODS
126 These methods, although stable, are subject to change without notice.
127 Extend at your own risk, APIs may change in the future.
131 Intercept a parameter with the key C<Member> amd store it in C<member_args>
135 Returns the C<current_collection>
137 =head2 _build_members
139 Build individual viewports for each member of the collection,
141 =head2 _build_member_args
143 Defaults to an empty HASH ref.
145 =head2 _build_member_class
147 Defaults to L<Reaction::UI::ViewPort::Object>
151 See L<Reaction::Class> for authors.
155 See L<Reaction::Class> for the license.