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1 | package Reaction::UI::Controller; |
2 | |
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3 | use base qw(Catalyst::Controller Reaction::Object); |
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4 | |
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5 | use Reaction::Class; |
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6 | use Scalar::Util 'weaken'; |
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7 | use namespace::clean -except => [ qw(meta) ]; |
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8 | |
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9 | has context => (is => 'ro', isa => 'Object', weak_ref => 1); |
10 | with 'Catalyst::Component::InstancePerContext'; |
11 | |
12 | sub build_per_context_instance { |
13 | my ($self, $c, @args) = @_; |
14 | my $newself = $self->new($self->_application, {%$self, context => $c, @args}); |
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15 | weaken $newself->{context}; #stopgap till cat 5.8 |
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16 | return $newself; |
17 | } |
18 | |
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19 | sub push_viewport { |
20 | my $self = shift; |
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21 | my $c = $self->context; |
22 | my $focus_stack = $c->stash->{focus_stack}; |
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23 | my ($class, @proto_args) = @_; |
24 | my %args; |
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25 | if (my $vp_attr = $c->stack->[-1]->attributes->{ViewPort}) { |
26 | if (ref($vp_attr) eq 'ARRAY') { |
27 | $vp_attr = $vp_attr->[0]; |
28 | } |
29 | if (ref($vp_attr) eq 'HASH') { |
30 | if (my $conf_class = delete $vp_attr->{class}) { |
31 | $class = $conf_class; |
32 | } |
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33 | %args = %{ $self->merge_config_hashes($vp_attr, {@proto_args}) }; |
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34 | } else { |
35 | $class = $vp_attr; |
36 | %args = @proto_args; |
37 | } |
38 | } else { |
39 | %args = @proto_args; |
40 | } |
41 | |
42 | $args{ctx} = $c; |
43 | |
44 | if (exists $args{next_action} && !ref($args{next_action})) { |
45 | $args{next_action} = [ $self, 'redirect_to', $args{next_action} ]; |
46 | } |
47 | $focus_stack->push_viewport($class, %args); |
48 | } |
49 | |
50 | sub pop_viewport { |
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51 | return shift->context->stash->{focus_stack}->pop_viewport; |
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52 | } |
53 | |
54 | sub pop_viewports_to { |
55 | my ($self, $vp) = @_; |
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56 | return $self->context->stash->{focus_stack}->pop_viewports_to($vp); |
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57 | } |
58 | |
59 | sub redirect_to { |
60 | my ($self, $c, $to, $cap, $args, $attrs) = @_; |
61 | |
62 | #the confess calls could be changed later to $c->log ? |
63 | my $action; |
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64 | my $reftype = ref($to); |
65 | if( $reftype eq '' ){ |
66 | $action = $self->action_for($to); |
67 | confess("Failed to locate action ${to} in " . blessed($self)) unless $action; |
68 | } elsif($reftype eq 'ARRAY' && @$to == 2){ #is that overkill / too strict? |
69 | $action = $c->controller($to->[0])->action_for($to->[1]); |
70 | confess("Failed to locate action $to->[1] in $to->[0]" ) unless $action; |
71 | } elsif( blessed $to && $to->isa('Catalyst::Action') ){ |
72 | $action = $to; |
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73 | } else{ |
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74 | confess("Failed to locate action from ${to}"); |
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75 | } |
76 | |
77 | $cap ||= $c->req->captures; |
78 | $args ||= $c->req->args; |
79 | $attrs ||= {}; |
80 | my $uri = $c->uri_for($action, $cap, @$args, $attrs); |
81 | $c->res->redirect($uri); |
82 | } |
83 | |
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84 | sub make_context_closure { |
85 | my($self, $closure) = @_; |
86 | my $ctx = $self->context; |
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87 | weaken($ctx); |
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88 | return sub { $closure->($ctx, @_) }; |
89 | } |
90 | |
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91 | 1; |
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92 | |
93 | __END__; |
94 | |
95 | =head1 NAME |
96 | |
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97 | Reaction::UI::Controller - Reaction Base Controller Class |
98 | |
99 | =head1 SYNOPSIS |
100 | |
101 | package MyApp::Controller::Foo; |
102 | use strict; |
103 | use warnings; |
104 | use parent 'Reaction::UI::Controller'; |
105 | |
106 | use aliased 'Reaction::UI::ViewPort'; |
107 | |
108 | sub foo: Chained('/base') Args(0) { |
109 | my ($self, $ctx) = @_; |
110 | |
111 | $ctx->push_viewport(ViewPort, |
112 | layout => 'foo', |
113 | ); |
114 | } |
115 | |
116 | 1; |
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117 | |
118 | =head1 DESCRIPTION |
119 | |
120 | Base Reaction Controller class. Inherits from: |
121 | |
122 | =over 4 |
123 | |
124 | =item L<Catalyst::Controller> |
125 | =item L<Catalyst::Component::ACCEPT_CONTEXT> |
126 | =item L<Reaction::Object> |
127 | |
128 | =back |
129 | |
130 | =head1 METHODS |
131 | |
132 | =head2 push_viewport $vp_class, %args |
133 | |
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134 | Creates a new instance of the L<Reaction::UI::ViewPort> class |
135 | ($vp_class) using the rest of the arguments given (%args). Defaults of |
136 | the action can be overridden by using the C<ViewPort> key in the |
137 | controller configuration. For example to override the default number |
138 | of items in a CRUD list action: |
139 | |
140 | __PACKAGE__->config( |
141 | action => { |
142 | list => { ViewPort => { per_page => 50 } }, |
143 | } |
144 | ); |
145 | |
146 | The ViewPort is added to the L<Reaction::UI::Window>'s FocusStack in |
147 | the stash, and also returned to the calling code. |
148 | |
149 | Related items: |
150 | |
151 | =over |
152 | |
153 | =item L<Reaction::UI::Controller::Root> |
154 | =item L<Reaction::UI::Window> |
155 | |
156 | =back |
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157 | |
158 | TODO: explain how next_action as a scalar gets converted to the redirect arrayref thing |
159 | |
160 | =head2 pop_viewport |
161 | |
162 | =head2 pop_viewport_to $vp |
163 | |
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164 | Call L<Reaction::UI::FocusStack/pop_viewport> or |
165 | L<Reaction::UI::FocusStack/pop_viewport_to> on |
166 | the C<< $c->stash->{focus_stack} >>. |
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167 | |
168 | =head2 redirect_to $c, $to, $captures, $args, $attrs |
169 | |
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170 | Construct a URI and redirect to it. |
171 | |
172 | $to can be: |
173 | |
174 | =over |
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175 | |
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176 | =item The name of an action in the current controller. |
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177 | |
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178 | =item A L<Catalyst::Action> instance. |
179 | |
180 | =item An arrayref of controller name and the name of an action in that |
181 | controller. |
182 | |
183 | =back |
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184 | |
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185 | $captures and $args default to the current requests $captures and |
186 | $args if not supplied. |
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187 | |
188 | =head1 AUTHORS |
189 | |
190 | See L<Reaction::Class> for authors. |
191 | |
192 | =head1 LICENSE |
193 | |
194 | See L<Reaction::Class> for the license. |
195 | |
196 | =cut |