1 package Reaction::UI::View;
5 # declaring dependencies
7 use Reaction::UI::LayoutSet;
8 use Reaction::UI::RenderingContext;
12 has '_layout_set_cache' => (is => 'ro', default => sub { {} });
14 has 'app' => (is => 'ro', required => 1);
16 has 'skin_name' => (is => 'ro', required => 1);
18 has 'layout_set_class' => (is => 'ro', lazy_build => 1);
20 has 'rendering_context_class' => (is => 'ro', lazy_build => 1);
22 implements 'COMPONENT' => as {
23 my ($class, $app, $args) = @_;
24 return $class->new(%{$args||{}}, app => $app);
29 my $skin_name = $self->skin_name;
30 my $skin_path = $self->app->path_to('share','skin',$skin_name);
31 confess("'${skin_path}' is not a valid path for skin '${skin_name}'")
35 implements 'render_window' => as {
36 my ($self, $window) = @_;
37 my $root_vp = $window->focus_stack->vp_head;
38 $self->render_viewport(undef, $root_vp);
41 implements 'render_viewport' => as {
42 my ($self, $outer_rctx, $vp) = @_;
43 my $layout_set = $self->layout_set_for($vp);
44 my $rctx = $self->create_rendering_context(
45 layouts => $layout_set,
48 my $widget = $self->widget_for($vp, $layout_set);
49 $widget->render($rctx);
52 implements 'widget_for' => as {
53 my ($self, $vp, $layout_set) = @_;
54 return $self->widget_class_for($layout_set)
55 ->new(view => $self, viewport => $vp);
58 implements 'widget_class_for' => as {
59 my ($self, $layout_set) = @_;
60 my $base = $self->blessed;
61 my $tail = $layout_set->widget_type;
62 my $class = join('::', $base, 'Widget', $tail);
63 Class::MOP::load_class($class);
67 implements 'layout_set_for' => as {
69 my $lset_name = eval { $vp->layout };
70 confess "Couldn't call layout method on \$vp arg ${vp}: $@" if $@;
71 unless (length($lset_name)) {
72 my $last = (split('::',ref($vp)))[-1];
73 $lset_name = join('_', map { lc($_) } split(/(?=[A-Z])/, $last));
75 my $cache = $self->_layout_set_cache;
76 return $cache->{$lset_name} ||= $self->create_layout_set($lset_name);
79 implements 'create_layout_set' => as {
80 my ($self, $name) = @_;
81 return $self->layout_set_class->new(
82 $self->layout_set_args_for($name),
86 implements 'find_related_class' => as {
87 my ($self, $rel) = @_;
88 my $own_class = ref($self)||$self;
89 confess View." is abstract, you must subclass it" if $own_class eq View;
90 foreach my $super ($own_class->meta->class_precedence_list) {
91 next if $super eq View;
92 if ($super =~ /::View::/) {
93 (my $class = $super) =~ s/::View::/::${rel}::/;
94 if (eval { Class::MOP::load_class($class) }) {
99 confess "Unable to find related ${rel} class for ${own_class}";
102 implements 'build_layout_set_class' => as {
104 return $self->find_related_class('LayoutSet');
107 implements 'layout_set_args_for' => as {
108 my ($self, $name) = @_;
109 return (name => $name, search_path => $self->layout_search_path);
112 implements 'layout_search_path' => as {
114 return $self->search_path_for_type('layout');
117 implements 'search_path_for_type' => as {
118 my ($self, $type) = @_;
119 return [ $self->app->path_to('share','skin',$self->skin_name,$type) ];
122 implements 'create_rendering_context' => as {
123 my ($self, @args) = @_;
124 return $self->rendering_context_class->new(
125 $self->rendering_context_args_for(@args),
130 implements 'build_rendering_context_class' => as {
132 return $self->find_related_class('RenderingContext');
135 implements 'rendering_context_args_for' => as {