1 package Reaction::UI::LayoutSet;
6 use namespace::clean -except => [ qw(meta) ];
9 has 'layouts' => (is => 'ro', default => sub { {} });
11 has 'name' => (is => 'ro', required => 1);
13 has 'source_file' => (is => 'ro', required => 1);
15 has 'widget_class' => (
16 is => 'rw', lazy_fail => 1, predicate => 'has_widget_class'
19 has 'widget_type' => (is => 'rw', lazy_build => 1);
21 has 'super' => (is => 'rw', predicate => 'has_super');
23 my ($self, $args) = @_;
24 my @path = @{$args->{search_path}||[]};
25 confess "No skin object provided" unless $args->{skin};
26 confess "No top skin object provided" unless $args->{top_skin};
27 $self->_load_file($self->source_file, $args);
28 unless ($self->has_widget_class) {
29 $self->widget_class($args->{skin}->widget_class_for($self));
32 sub widget_order_for {
33 my ($self, $name) = @_;
35 ($self->has_layout($name)
36 ? ([ $self->widget_class, $self ]) #;
39 ? ($self->super->widget_order_for($name))
48 keys %{shift->layouts},
50 ? (@{$self->super->layout_names})
54 sub has_layout { exists $_[0]->layouts->{$_[1]} };
56 my ($self, $file, $build_args) = @_;
57 my $data = $file->slurp;
59 unless utf8::is_utf8($data);
60 my $layouts = $self->layouts;
61 # cheesy match for "=for layout name ... =something"
62 # final split group also handles last in file, (?==) is lookahead
63 # assertion for '=' so "=for layout name1 ... =for layout name2"
64 # doesn't have the match pos go past the latter = and lose name2
65 while ($data =~ m/=(.*?)\n(.*?)(?:\n(?==)|$)/sg) {
66 my ($data, $text) = ($1, $2);
67 if ($data =~ /^for layout (\S+)/) {
69 $text =~ s/^(?:\s*\r?\n)+//; #remove leading empty lines
70 $text =~ s/[\s\r\n]+$//; #remove trailing whitespace
71 $layouts->{$fname} = $text;
72 } elsif ($data =~ /^extends (\S+)/) {
75 if ($super_name eq 'NEXT') {
76 confess "No next skin and layout extends NEXT"
77 unless $build_args->{next_skin};
78 $skin = $build_args->{next_skin};
79 $super_name = $self->name;
81 $skin = $build_args->{top_skin};
83 $self->super($skin->create_layout_set($super_name));
84 } elsif ($data =~ /^widget (\S+)/) {
86 $self->widget_type($1);
87 } elsif ($data =~ /^cut/) {
90 confess "Unparseable directive ${data} in ${file}";
94 sub _build_widget_type {
96 my $widget = join('', map { ucfirst($_) } split('_', $self->name));
97 $widget = join('::', map { ucfirst($_) } split('/', $widget));
99 #print STDERR "--- ", $self->name, " maps to widget $widget \n";
104 __PACKAGE__->meta->make_immutable;