1 package Reaction::UI::LayoutSet;
6 class LayoutSet which {
8 has 'layouts' => (is => 'ro', default => sub { {} });
10 has 'name' => (is => 'ro', required => 1);
12 has 'source_file' => (is => 'ro', required => 1);
14 has 'widget_class' => (
15 is => 'rw', lazy_fail => 1, predicate => 'has_widget_class'
18 has 'widget_type' => (is => 'rw', lazy_build => 1);
20 has 'super' => (is => 'rw', predicate => 'has_super');
22 implements 'BUILD' => as {
23 my ($self, $args) = @_;
24 my @path = @{$args->{search_path}||[]};
25 confess "No view object provided" unless $args->{view};
26 confess "No skin object provided" unless $args->{skin};
27 $self->_load_file($self->source_file, $args);
28 unless ($self->has_widget_class) {
29 $self->widget_class($args->{view}->widget_class_for($self));
33 implements 'widget_order_for' => as {
34 my ($self, $name) = @_;
36 ($self->has_layout($name)
37 ? ([ $self->widget_class, $self ]) #;
40 ? ($self->super->widget_order_for($name))
45 implements 'layout_names' => as {
50 keys %{shift->layouts},
52 ? (@{$self->super->layout_names})
57 implements 'has_layout' => as { exists $_[0]->layouts->{$_[1]} };
59 implements '_load_file' => as {
60 my ($self, $file, $build_args) = @_;
61 my $data = $file->slurp;
62 my $layouts = $self->layouts;
63 # cheesy match for "=for layout name ... =something"
64 # final split group also handles last in file, (?==) is lookahead
65 # assertion for '=' so "=for layout name1 ... =for layout name2"
66 # doesn't have the match pos go past the latter = and lose name2
67 while ($data =~ m/=(.*?)\n(.*?)(?:\n(?==)|$)/sg) {
68 my ($data, $text) = ($1, $2);
69 if ($data =~ /^for layout (\S+)/) {
71 $text =~ s/^(?:\s*\r?\n)+//; #remove leading empty lines
72 $text =~ s/[\s\r\n]+$//; #remove trailing whitespace
73 $layouts->{$fname} = $text;
74 } elsif ($data =~ /^extends (\S+)/) {
77 if ($super_name eq 'NEXT') {
78 confess "No next skin and layout extends NEXT"
79 unless $build_args->{next_skin};
80 $skin = $build_args->{next_skin};
81 $super_name = $self->name;
83 $skin = $build_args->{skin};
85 $self->super($skin->create_layout_set($super_name));
86 } elsif ($data =~ /^widget (\S+)/) {
88 $self->widget_type($1);
89 } elsif ($data =~ /^cut/) {
92 confess "Unparseable directive ${data}";
97 implements '_build_widget_type' => as {
99 my $widget = join('', map { ucfirst($_) } split('_', $self->name));
100 $widget = join('::', map { ucfirst($_) } split('/', $widget));
102 #print STDERR "--- ", $self->name, " maps to widget $widget \n";