1 package Reaction::UI::Skin;
5 # declaring dependencies
6 use Reaction::UI::LayoutSet;
7 use Reaction::UI::RenderingContext;
11 use aliased 'Path::Class::Dir';
15 has '_layout_set_cache' => (is => 'ro', default => sub { {} });
16 has '_widget_class_cache' => (is => 'ro', default => sub { {} });
18 has 'name' => (is => 'ro', isa => 'Str', required => 1);
19 has 'skin_dir' => (is => 'rw', isa => Dir, lazy_fail => 1);
21 has 'widget_search_path' => (
22 is => 'rw', isa => 'ArrayRef', requred => 1, default => sub { [] }
26 is => 'ro', required => 1, weak_ref => 1,
27 handles => [ qw(layout_set_class) ],
31 is => 'rw', isa => Skin, required => 0, predicate => 'has_super',
35 my ($self, $args) = @_;
36 $self->_find_skin_dir($args);
37 $self->_load_skin_config($args);
40 implements '_find_skin_dir' => as {
41 my ($self, $args) = @_;
42 my $skin_name = $self->name;
43 if ($skin_name =~ s!^/(.*?)/!!) {
45 $args->{skin_base_dir} = eval {
46 Dir->new(File::ShareDir::dist_dir($dist))
50 # No installed Reaction
52 my $dir = Dir->new(dirname($file));
54 while ($dir->parent) {
55 if (-d $dir->subdir('share') && -d $dir->subdir('share')->subdir('skin')) {
56 $skin_base = $dir->subdir('share')->subdir('skin');
61 confess "could not find skinbase by recursion. ended up at $dir, from $file"
63 $args->{skin_base_dir} = $skin_base;
66 my $base = $args->{skin_base_dir}->subdir($skin_name);
67 confess "No such skin base directory ${base}"
69 $self->skin_dir($base);
72 implements '_load_skin_config' => as {
73 my ($self, $args) = @_;
74 my $base = $self->skin_dir;
75 my $lst = sub { (ref $_[0] eq 'ARRAY') ? $_[0] : [$_[0]] };
77 $args->{skin_base_dir}->file('defaults.conf'), $base->file('skin.conf')
79 # we get [ { $file => $conf }, ... ]
80 my %cfg = (map { %{(values %{$_})[0]} }
81 @{Config::Any->load_files({
82 files => [ grep { -e $_ } @files ],
86 if (my $super_name = $cfg{extends}) {
87 my $super = $self->new(
90 skin_base_dir => $args->{skin_base_dir},
94 if (exists $cfg{widget_search_path}) {
95 $self->widget_search_path($lst->($cfg{widget_search_path}));
97 confess "No widget_search_path in defaults.conf or skin.conf"
98 ." and no search path provided from super skin"
99 unless $self->full_widget_search_path;
103 implements 'create_layout_set' => as {
104 my ($self, $name) = @_;
105 $self->_create_layout_set($name, [], $self);
108 implements '_create_layout_set' => as {
109 my ($self, $name, $tried, $top_skin) = @_;
110 if (my $path = $self->layout_path_for($name)) {
111 return $self->layout_set_class->new(
112 $self->layout_set_args_for($name),
113 source_file => $path,
114 top_skin => $top_skin,
117 $tried = [ @{$tried}, $self->our_path_for_type('layout') ];
118 if ($self->has_super) {
119 return $self->super->_create_layout_set($name, $tried, $top_skin);
121 confess "Couldn't find layout set file for ${name}, tried "
122 .join(', ', @$tried);
125 implements 'layout_set_args_for' => as {
126 my ($self, $name) = @_;
130 ($self->has_super ? (next_skin => $self->super) : ()),
131 $self->view->layout_set_args_for($name),
135 implements 'layout_path_for' => as {
136 my ($self, $layout) = @_;
137 my $file_name = join(
138 '.', $layout, $self->view->layout_set_file_extension
140 my $path = $self->our_path_for_type('layout')
142 return (-e $path ? $path : undef);
145 implements 'search_path_for_type' => as {
146 my ($self, $type) = @_;
148 $self->our_path_for_type($type),
150 ? @{$self->super->search_path_for_type($type)}
156 implements 'our_path_for_type' => as {
157 my ($self, $type) = @_;
158 return $self->skin_dir->subdir($type)
161 implements 'full_widget_search_path' => as {
164 @{$self->widget_search_path},
165 ($self->has_super ? $self->super->full_widget_search_path : ())
169 implements 'widget_class_for' => as {
170 my ($self, $layout_set) = @_;
171 my $base = $self->blessed;
172 my $widget_type = $layout_set->widget_type;
173 return $self->_widget_class_cache->{$widget_type} ||= do {
175 my @search_path = $self->full_widget_search_path;
176 my @haystack = map {join('::', $_, $widget_type)} @search_path;
178 foreach my $class (@haystack) {
179 #if the class is already loaded skip the call to Installed etc.
180 return $class if Class::MOP::is_class_loaded($class);
181 next unless Class::Inspector->installed($class);
183 my $ok = eval { Class::MOP::load_class($class) };
184 confess("Failed to load widget '${class}': $@") if $@;
187 confess "Couldn't locate widget '${widget_type}' for layout "
188 ."'${\$layout_set->name}': tried: ".join(", ", @haystack);