Commit | Line | Data |
7adfd53f |
1 | package Reaction::UI::Widget; |
2 | |
3 | use Reaction::Class; |
4 | use aliased 'Reaction::UI::ViewPort'; |
5 | use aliased 'Reaction::UI::View'; |
d8c7a86e |
6 | use aliased 'Reaction::UI::LayoutSet'; |
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7 | |
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8 | sub DEBUG_FRAGMENTS () { $ENV{REACTION_UI_WIDGET_DEBUG_FRAGMENTS} } |
c439e187 |
9 | sub DEBUG_LAYOUTS () { $ENV{REACTION_UI_WIDGET_DEBUG_LAYOUTS} } |
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10 | |
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11 | class Widget which { |
12 | |
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13 | has 'view' => (isa => View, is => 'ro', required => 1); |
d8c7a86e |
14 | has 'layout_set' => (isa => LayoutSet, is => 'ro', required => 1); |
f2fef590 |
15 | has 'fragment_names' => (is => 'ro', lazy_build => 1); |
16 | has 'basic_layout_args' => (is => 'ro', lazy_build => 1); |
17 | |
18 | implements '_build_fragment_names' => as { |
19 | my ($self) = shift; |
20 | return [ |
21 | map { /^_fragment_(.*)/; $1; } |
22 | grep { /^_fragment_/ } |
23 | map { $_->{name} } |
24 | $self->meta->compute_all_applicable_methods |
25 | ]; |
26 | }; |
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27 | |
28 | implements 'render' => as { |
f2fef590 |
29 | my ($self, $fragment_name, $rctx, $passed_args) = @_; |
30 | confess "\$passed_args not hashref" unless ref($passed_args) eq 'HASH'; |
5b263604 |
31 | if (DEBUG_FRAGMENTS) { |
32 | my $vp = $passed_args->{viewport}; |
33 | $self->view->app->log->debug( |
34 | "Rendering fragment ${fragment_name} for ".ref($self) |
35 | ." for VP ${vp} at ".$vp->location |
36 | ); |
37 | } |
097e8442 |
38 | my $args = { self => $self, %$passed_args }; |
f2fef590 |
39 | my $new_args = { %$args }; |
40 | my $render_tree = $self->_render_dispatch_order( |
41 | $fragment_name, $args, $new_args |
42 | ); |
43 | $rctx->dispatch($render_tree, $new_args); |
44 | }; |
45 | |
1c41e332 |
46 | implements '_method_for_fragment_name' => as { |
47 | my ($self, $fragment_name) = @_; |
48 | return $self->can("_fragment_${fragment_name}"); |
49 | }; |
50 | |
f2fef590 |
51 | implements '_render_dispatch_order' => as { |
52 | my ($self, $fragment_name, $args, $new_args) = @_; |
53 | |
54 | my @render_stack = (my $render_deep = (my $render_curr = [])); |
55 | my @layout_order = $self->layout_set->widget_order_for($fragment_name); |
56 | |
1c41e332 |
57 | if (my $f_meth = $self->_method_for_fragment_name($fragment_name)) { |
f2fef590 |
58 | my @wclass_stack; |
59 | my $do_render = sub { |
60 | my $package = shift; |
61 | if (@layout_order) { |
62 | while ($package eq $layout_order[0][0] |
63 | || $layout_order[0][0]->isa($package)) { |
64 | my $new_curr = []; |
65 | my @l = @{shift(@layout_order)}; |
c439e187 |
66 | if (DEBUG_LAYOUTS) { |
67 | $self->view->app->log->debug( |
68 | "Layout ${fragment_name} in ${\$l[1]->name} from ${\$l[1]->source_file}" |
69 | ); |
70 | } |
f2fef590 |
71 | push(@$render_curr, [ -layout, $l[1], $fragment_name, $new_curr ]); |
72 | push(@render_stack, $new_curr); |
73 | push(@wclass_stack, $l[0]); |
74 | $render_deep = $render_curr = $new_curr; |
75 | last unless @layout_order; |
76 | } |
77 | } |
78 | if (@wclass_stack) { |
79 | while ($package ne $wclass_stack[-1] |
80 | && $package->isa($wclass_stack[-1])) { |
81 | pop(@wclass_stack); |
82 | $render_curr = pop(@render_stack); |
83 | } |
84 | } |
85 | push(@{$render_curr}, [ -render, @_ ]); |
86 | }; |
87 | $self->$f_meth($do_render, $args, $new_args); |
88 | } |
89 | # if we had no fragment method or if we still have layouts left |
90 | if (@layout_order) { |
91 | while (my $l = shift(@layout_order)) { |
c439e187 |
92 | if (DEBUG_LAYOUTS) { |
93 | $self->view->app->log->debug( |
94 | "Layout ${fragment_name} in ${\$l->[1]->name} from ${\$l->[1]->source_file}" |
95 | ); |
96 | } |
f2fef590 |
97 | push(@$render_deep, [ |
98 | -layout => $l->[1], $fragment_name, ($render_deep = []) |
99 | ]); |
100 | } |
101 | } |
102 | |
103 | return $render_stack[0]; |
104 | }; |
105 | |
106 | implements '_build_basic_layout_args' => as { |
107 | my ($self) = @_; |
108 | my $args; |
109 | foreach my $name (@{$self->fragment_names}, |
110 | @{$self->layout_set->layout_names}) { |
111 | $args->{$name} ||= sub { $self->render($name, @_); }; |
112 | } |
113 | return $args; |
7adfd53f |
114 | }; |
115 | |
f2fef590 |
116 | implements '_fragment_viewport' => as { |
117 | my ($self, $do_render, $args, $new_args) = @_; |
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118 | my $vp = $args->{'_'}; |
f2fef590 |
119 | my ($widget, $merge_args) = $self->view->render_viewport_args($vp); |
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120 | $merge_args->{outer} = { %$new_args }; |
aa8c0c90 |
121 | delete @{$new_args}{keys %$new_args}; # fresh start |
f2fef590 |
122 | @{$new_args}{keys %$merge_args} = values %$merge_args; |
123 | $do_render->(Widget, $widget, 'widget'); |
124 | }; |
125 | |
126 | implements '_fragment_widget' => as { |
127 | my ($self, $do_render, $args, $new_args) = @_; |
128 | my $merge = $self->basic_layout_args; |
aa8c0c90 |
129 | #warn "Merge: ".join(', ', keys %$merge)." into: ".join(', ', keys %$new_args); |
f2fef590 |
130 | delete @{$merge}{keys %$new_args}; # nuke 'self' and 'viewport' |
131 | @{$new_args}{keys %$merge} = values %$merge; |
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132 | }; |
133 | |
134 | }; |
135 | |
136 | 1; |
137 | |
138 | =head1 NAME |
139 | |
140 | Reaction::UI::Widget |
141 | |
142 | =head1 DESCRIPTION |
143 | |
144 | =head1 AUTHORS |
145 | |
146 | See L<Reaction::Class> for authors. |
147 | |
148 | =head1 LICENSE |
149 | |
150 | See L<Reaction::Class> for the license. |
151 | |
152 | =cut |