server/ext/widget.ext

#! perl # mandatory depends=login

# sends the following ext message types
# ws_a       id name...                        # associate well-known widget with given id
# ws_n       ws                                # widgetset new
# ws_d       ws                                # widgetset destroy
# ws_c       ws id class @args                 # widgetset create
# ws_ct      ws ttype ttext done_cb \%cfg      # widgetset create from template
# w_c        id rid name @args                 # widget method call
# w_s        id @attr                          # widget member set
# w_g        id rid @attr                      # widget member get
#
# and expects the following exti message types
# w_e        id @args                          # widget_call

our $DEBUG = 1;

cf::client->attach (
   on_connect => sub {
      my ($ns) = @_;

      Scalar::Util::weaken (my $weakns = $ns);

      $ns->{id} = "a";
      $ns->{json_coder}->filter_json_single_key_object ("\fw" => sub {
         $weakns->{widget}{$_[0]}
      });
   },
);

sub csc_update_stats {
   my ($ns) = @_;

   while (my ($k, $v) = each %{ $ns->{csc}{stat} }) {
      $v->set_text ($ns->pl->ob->stats->$k);
   }
}

my $cg_template = eval <<EOF;
[
   Toplevel => {
      s_id    => "toplevel",
      title   => "Character Creation",
      x       => "center",
      y       => "center",
      z       => 5,
      force_w => 760,
      force_h => 440,
      s_cl => [VBox => { s_cl => [
         Label => {
            text     => "Character Creation",
            fontsize => 1,
            align    => 0,
         },
         Label => {
            markup   => "View or Edit your character attributes below, then press <b>Finish</b> to create your character",
            fontsize => 0.8,
            align    => 0,
         },
         HBox  => { s_cl => [
            Face => {
               s_id  => "face",
               face  => 0,
               bg    => [.2, .2, .2, 1],
               min_w => 64,
               min_h => 64,
            },
            Label => {
               s_id      => "desc",
               fontsize  => 0.8,
               ellipsize => 0,
            },
         ]},
         Notebook => {
            expand => 1,
            s_cl => [
               Table => {
                  c_tab => ["Basics", "Title, background and other information of your character."],
               },
               Table => {
                  c_tab => ["Stats", "Your character's primary stats such as strength, dexterity and so on."],
               },
               Table => {
                  c_tab => ["Race", "Your character's race."],
               },
               Table => {
                  c_tab => ["Class", "Your character's initial class."],
               },
            ],
         },
         Button => {
            s_id => "finish",
            text => "Finish",
         },
      ]}],
   },
]
EOF
die if $@;

sub demo_start {
   my ($ns) = @_;

   my $ws = $ns->{csc} = $ns->new_widgetset;

   my ($tl, $entry) = $ws->template (inline => $cg_template,
      [
         toplevel => {},
         entry    => {
            text => "xyz",
            on_changed => sub {
               warn "changed<@_>\n";#d#
            },
         },
      ],
   );

   $tl->show;

   $ns->{xxxw} = [$tl, $entry];#d#
   
#   $ws->find ("setup_notebook")->add ($ws->{tab});
#   $ws->find ("setup_dialog")->toggle_visibility;
}

sub csc_start {
   my ($ns) = @_;

   my $ws = $ns->{csc} = $ns->new_widgetset;

   my $w = $ws->new (Toplevel =>
      min_w => 600,
      min_h => 400,
      x     => "center",
      y     => "center",
      title => "Character Creation",
      has_close_button => 1,
      on_delete => sub {
         $ws->destroy;
      },
   );

   $w->add (my $ntb = $ws->new (Notebook => expand => 1));

   $ntb->add_tab (Statistics => (my $stats = $ws->new (Table => expand => 1)), "Basic statistics of your new character");

   $stats->add_at (0, 0, (my $statstable = $ws->new ("Table")));

   for (
      [0, "Str"],
      [1, "Dex"],
      [2, "Con"],
      [3, "Int"],
      [4, "Wis"],
      [5, "Pow"],
      [6, "Cha"],
   ) {
      my ($x, $label) = @$_;

      $statstable->add_at ($x, 0, $ws->new (Label =>
         can_hover => 1, can_events => 1,
         align => +1, text => $label, tooltip => "#stat_$label",
      ));
      $statstable->add_at ($x, 1, $ws->{stat}{$label} = $ws->new (Label =>
         can_hover => 1, can_events => 1,
         align => +1, template => "88", tooltip => "#stat_$label",
      ));
   }

   csc_update_stats $ns;

   $ws->{tl} = $w;
   $w->show;
}

cf::player->attach (
   on_login => sub {
      my ($pl) = @_;

      return unless $cf::CFG{devel};

      my $ns = $pl->ns;

      return unless $ns->{can_widget};
      #csc_start $ns;
      demo_start $ns;
   },
);

cf::register_exticmd w_e => sub {
   my ($ns, $id, @args) = @_;

   if (my $cb = $ns->{widget_cb}{$id}) {
      $cb->(@args);
   }

   ()
};

sub cf::client::new_widgetset {
   my ($self) = @_;

   my $id = ++$self->{id};

   my $ws = bless {
      id => $id,
      ns => $self,
      _w => {},
   }, "ext::widget::set";

   $ws->msg (ws_n => $id);

   $ws
}

sub cf::client::alloc_wid {
   pop @{ $_[0]{ids} }
      or ++$_[0]{id}
}

sub cf::client::free_wid {
   push @{ $_[0]{ids} }, $_[1];
}

#############################################################################

package ext::widget::set;

sub DESTROY {
   $_[0]->destroy;
}

sub destroy {
   my ($self) = @_;

   $self->msg (ws_d => $self->{id});
   delete $self->{ns};
   $_->destroy
      for values %{ $self->{w} };
}

sub msg {
   my ($self, @msg) = @_;

   if (my $ns = shift->{ns}) {
      warn "msg " . $ns->{json_coder}->encode (\@msg) if $DEBUG;#d#
      $ns->send_packet ("ext " . $ns->{json_coder}->encode (\@msg));
   }
}

sub alloc {
   my ($self) = @_;

   my $id = $self->{ns}->alloc_wid;

   my $proxy = bless {
      id => $id,
   }, "ext::widget::proxy";

   Scalar::Util::weaken ($proxy->{ns} = $self->{ns});
   Scalar::Util::weaken ($self->{ns}{widget}{$id} = $proxy);

   $proxy
}

sub new {
   my ($self, $class, %args) = @_;

   my $proxy = $self->alloc;

   Scalar::Util::weaken ($self->{_w}{$proxy->{id}} = $proxy);
   Scalar::Util::weaken ($proxy->{ws} = $self);

   for my $ev (grep /^on_/, keys %args) {
      $args{$ev} = $proxy->{"_$ev"} = $proxy->cb ($args{$ev});
   }

   $self->msg (ws_c =>
      $self->{id},
      $proxy->{id},
      $class,
      \%args,
   );

   $proxy
}

sub template {
   my ($self, $type, $template, $args, $done_cb) = @_;

   my %cfg;
   my @res;

   while (@$args) {
      my ($name, $args) = splice @$args, 0, 2, ();

      my $proxy = $self->alloc;

      Scalar::Util::weaken ($self->{_w}{$proxy->{id}} = $proxy);
      Scalar::Util::weaken ($proxy->{ws} = $self);

      for my $ev (grep /^on_/, keys %$args) {
         $args->{$ev} = $proxy->{"_$ev"} = $proxy->cb ($args->{$ev});
      }

      $cfg{$name} = {
         %$args,
         id => $proxy->{id},
      };

      push @res, $proxy;
   }

   if ($done_cb) {
      my $proxy = $self->alloc;
      my $ocb = $done_cb;
      $done_cb = $proxy->cb (sub {
         undef $proxy;
         undef $done_cb;
         &$ocb
      });
   }

   $self->msg (ws_ct =>
      $self->{id},
      $type => $template,
      $done_cb,
      \%cfg,
   );

   @res
}

sub find {
   my ($self, @names) = @_;

   my @res;
   my @alloc;

   for my $name (@names) {
      push @res, $self->{ns}{widget_wkw}{$name} ||= do {
         my $proxy = $self->alloc;

         push @alloc, $proxy->{id} => $name;

         $proxy
      };
   }

   $self->msg (ws_a => @alloc)
      if @alloc;

   wantarray ? @res : $res[0]
}

#############################################################################

package ext::widget::proxy;

sub DESTROY {
   my ($self) = @_;

   delete $self->{ns}{widget}{$self->{id}};

   if (my $ws = $self->{ws}) {
      $self->msg (w_c => 0, "destroy");
      delete $ws->{_w}{$self->{id}};
   }
}

sub cb {
   my ($self, $cb) = @_;

   my $proxy = bless {
      ns => $self->{ns},
      id => $self->{ns}->alloc_wid,
   }, "ext::widget::callback";

   Scalar::Util::weaken $proxy->{ns};

   $self->{ns}{widget_cb}{$proxy->{id}} = $cb;

   $proxy
}

sub oneshot_cb {
   my ($self, $cb) = @_;

   if ("CODE" eq ref $cb) {
      my $ocb = $cb;
      $cb = $self->cb (sub {
         undef $cb;
         &$ocb
      });
   }

   $cb
}

sub msg {
   my ($self, $type, @arg) = @_;

   if (my $ns = $self->{ns}) {
      my @msg = ($type, $self->{id}, @arg);
      warn "MSG " . $ns->{json_coder}->encode (\@msg) if $DEBUG;#d#
      $ns->send_packet ("ext " . $ns->{json_coder}->encode (\@msg));
   }
}

sub msg_cb {
   my ($self, $cb, $type, @arg) = @_;

   if (my $ws = $self->{ws}) {
      my $rid = $ws->{ns}->alloc_wid;

      if ($cb) {
         $ws->{ns}{widget_cb}{$rid} = sub {
            delete $ws->{ns}{widget_cb}{$rid};
            $ws->{ns}->free_wid ($rid);
            &$cb
         };

         $self->msg ($type, $rid, @arg);
      } else {
         # synchronous case
         my $wait = new Coro::Signal;
         my @res;

         $ws->{ns}{widget_cb}{$rid} = sub {
            delete $ws->{ns}{widget_cb}{$rid};
            $ws->{ns}->free_wid ($rid);

            @res = @_;
            $wait->send;
         };
         $self->msg ($type, $rid, @arg);
         $wait->wait;

         return @res;
      }
   }

   ()
}

sub set {
   my ($self, @kv) = @_;

   $self->msg (w_s => \@kv);
}

sub get {
   my ($self, $member, $cb) = @_;

   $self->msg_cb ($cb, w_g => ref $member ? @$member : $member);
}

sub TO_JSON {
   { "\fw" => $_[0]{id} }
}

our $AUTOLOAD;

sub AUTOLOAD {
   $AUTOLOAD =~ s/^.*://
      or return;

   my $self = shift;

   #TODO: handle non-void context
   $self->msg (w_c => 0, $AUTOLOAD, @_);

   ()
}

package ext::widget::callback;

sub DESTROY {
   my ($self) = @_;

   if (my $ns = $self->{ns}) {
      delete $ns->{widget_cb}{$self->{id}};
      $ns->free_wid ($self->{id});
   }
}

sub TO_JSON {
   { "\fc" => $_[0]{id} }
}

Revision:	1.21
Committed:	Thu Dec 27 19:41:26 2007 UTC (16 years, 5 months ago) by root
Branch:	MAIN
Changes since 1.20:	+87 -12 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#! perl # mandatory depends=login
2
3			# sends the following ext message types
4	root	1.17	# ws_a id name... # associate well-known widget with given id
5	root	1.14	# ws_n ws # widgetset new
6			# ws_d ws # widgetset destroy
7	root	1.17	# ws_c ws id class @args # widgetset create
8	root	1.21	# ws_ct ws ttype ttext done_cb \%cfg # widgetset create from template
9	root	1.17	# w_c id rid name @args # widget method call
10	root	1.10	# w_s id @attr # widget member set
11			# w_g id rid @attr # widget member get
12	root	1.1	#
13			# and expects the following exti message types
14	root	1.19	# w_e id @args # widget_call
15	root	1.1
16	root	1.13	our $DEBUG = 1;
17
18	root	1.1	cf::client->attach (
19			on_connect => sub {
20			my ($ns) = @_;
21
22	root	1.4	Scalar::Util::weaken (my $weakns = $ns);
23
24	root	1.1	$ns->{id} = "a";
25	root	1.19	$ns->{json_coder}->filter_json_single_key_object ("\fw" => sub {
26			$weakns->{widget}{$_[0]}
27	root	1.4	});
28	root	1.1	},
29			);
30
31	root	1.2	sub csc_update_stats {
32			my ($ns) = @_;
33
34			while (my ($k, $v) = each %{ $ns->{csc}{stat} }) {
35			$v->set_text ($ns->pl->ob->stats->$k);
36			}
37			}
38
39	root	1.21	my $cg_template = eval <<EOF;
40			[
41			Toplevel => {
42			s_id => "toplevel",
43			title => "Character Creation",
44			x => "center",
45			y => "center",
46			z => 5,
47			force_w => 760,
48			force_h => 440,
49			s_cl => [VBox => { s_cl => [
50			Label => {
51			text => "Character Creation",
52			fontsize => 1,
53			align => 0,
54			},
55			Label => {
56			markup => "View or Edit your character attributes below, then press <b>Finish</b> to create your character",
57			fontsize => 0.8,
58			align => 0,
59			},
60			HBox => { s_cl => [
61			Face => {
62			s_id => "face",
63			face => 0,
64			bg => [.2, .2, .2, 1],
65			min_w => 64,
66			min_h => 64,
67			},
68			Label => {
69			s_id => "desc",
70			fontsize => 0.8,
71			ellipsize => 0,
72			},
73			]},
74			Notebook => {
75			expand => 1,
76			s_cl => [
77			Table => {
78			c_tab => ["Basics", "Title, background and other information of your character."],
79			},
80			Table => {
81			c_tab => ["Stats", "Your character's primary stats such as strength, dexterity and so on."],
82			},
83			Table => {
84			c_tab => ["Race", "Your character's race."],
85			},
86			Table => {
87			c_tab => ["Class", "Your character's initial class."],
88			},
89			],
90			},
91			Button => {
92			s_id => "finish",
93			text => "Finish",
94			},
95			]}],
96			},
97			]
98			EOF
99			die if $@;
100
101	root	1.17	sub demo_start {
102			my ($ns) = @_;
103
104			my $ws = $ns->{csc} = $ns->new_widgetset;
105
106	root	1.21	my ($tl, $entry) = $ws->template (inline => $cg_template,
107			[
108			toplevel => {},
109			entry => {
110			text => "xyz",
111			on_changed => sub {
112			warn "changed<@_>\n";#d#
113			},
114	root	1.20	},
115	root	1.21	],
116	root	1.20	);
117
118			$tl->show;
119
120			$ns->{xxxw} = [$tl, $entry];#d#
121	root	1.17
122	root	1.20	# $ws->find ("setup_notebook")->add ($ws->{tab});
123			# $ws->find ("setup_dialog")->toggle_visibility;
124	root	1.17	}
125
126	root	1.2	sub csc_start {
127			my ($ns) = @_;
128
129			my $ws = $ns->{csc} = $ns->new_widgetset;
130
131			my $w = $ws->new (Toplevel =>
132			min_w => 600,
133			min_h => 400,
134			x => "center",
135			y => "center",
136			title => "Character Creation",
137	root	1.3	has_close_button => 1,
138			on_delete => sub {
139			$ws->destroy;
140			},
141	root	1.2	);
142
143			$w->add (my $ntb = $ws->new (Notebook => expand => 1));
144
145	root	1.17	$ntb->add_tab (Statistics => (my $stats = $ws->new (Table => expand => 1)), "Basic statistics of your new character");
146	root	1.2
147	root	1.17	$stats->add_at (0, 0, (my $statstable = $ws->new ("Table")));
148	root	1.2
149			for (
150	root	1.3	[0, "Str"],
151			[1, "Dex"],
152			[2, "Con"],
153			[3, "Int"],
154			[4, "Wis"],
155			[5, "Pow"],
156			[6, "Cha"],
157	root	1.2	) {
158	root	1.3	my ($x, $label) = @$_;
159	root	1.2
160	root	1.9	$statstable->add_at ($x, 0, $ws->new (Label =>
161	root	1.2	can_hover => 1, can_events => 1,
162			align => +1, text => $label, tooltip => "#stat_$label",
163			));
164	root	1.9	$statstable->add_at ($x, 1, $ws->{stat}{$label} = $ws->new (Label =>
165	root	1.2	can_hover => 1, can_events => 1,
166			align => +1, template => "88", tooltip => "#stat_$label",
167			));
168			}
169
170			csc_update_stats $ns;
171
172	root	1.17	$ws->{tl} = $w;
173	root	1.2	$w->show;
174			}
175
176	root	1.1	cf::player->attach (
177			on_login => sub {
178			my ($pl) = @_;
179
180	root	1.8	return unless $cf::CFG{devel};
181	root	1.1
182			my $ns = $pl->ns;
183
184	root	1.2	return unless $ns->{can_widget};
185	root	1.5	#csc_start $ns;
186	root	1.20	demo_start $ns;
187	root	1.1	},
188			);
189
190			cf::register_exticmd w_e => sub {
191	root	1.19	my ($ns, $id, @args) = @_;
192	root	1.1
193	root	1.19	if (my $cb = $ns->{widget_cb}{$id}) {
194			$cb->(@args);
195	root	1.1	}
196
197			()
198			};
199
200			sub cf::client::new_widgetset {
201			my ($self) = @_;
202
203			my $id = ++$self->{id};
204
205			my $ws = bless {
206			id => $id,
207			ns => $self,
208	root	1.12	_w => {},
209	root	1.1	}, "ext::widget::set";
210
211	root	1.14	$ws->msg (ws_n => $id);
212	root	1.1
213			$ws
214			}
215
216	root	1.19	sub cf::client::alloc_wid {
217			pop @{ $_[0]{ids} }
218			or ++$_[0]{id}
219			}
220
221			sub cf::client::free_wid {
222			push @{ $_[0]{ids} }, $_[1];
223			}
224
225	root	1.1	#############################################################################
226
227			package ext::widget::set;
228
229			sub DESTROY {
230			$_[0]->destroy;
231			}
232
233			sub destroy {
234			my ($self) = @_;
235
236	root	1.14	$self->msg (ws_d => $self->{id});
237	root	1.1	delete $self->{ns};
238			$_->destroy
239			for values %{ $self->{w} };
240			}
241
242			sub msg {
243	root	1.14	my ($self, @msg) = @_;
244	root	1.1
245			if (my $ns = shift->{ns}) {
246	root	1.14	warn "msg " . $ns->{json_coder}->encode (\@msg) if $DEBUG;#d#
247			$ns->send_packet ("ext " . $ns->{json_coder}->encode (\@msg));
248	root	1.1	}
249			}
250
251	root	1.17	sub alloc {
252			my ($self) = @_;
253	root	1.1
254	root	1.19	my $id = $self->{ns}->alloc_wid;
255	root	1.1
256	root	1.13	my $proxy = bless {
257	root	1.1	id => $id,
258			}, "ext::widget::proxy";
259
260			Scalar::Util::weaken ($proxy->{ns} = $self->{ns});
261			Scalar::Util::weaken ($self->{ns}{widget}{$id} = $proxy);
262
263	root	1.17	$proxy
264			}
265
266			sub new {
267			my ($self, $class, %args) = @_;
268
269			my $proxy = $self->alloc;
270
271			Scalar::Util::weaken ($self->{_w}{$proxy->{id}} = $proxy);
272			Scalar::Util::weaken ($proxy->{ws} = $self);
273
274	root	1.1	for my $ev (grep /^on_/, keys %args) {
275	root	1.19	$args{$ev} = $proxy->{"_$ev"} = $proxy->cb ($args{$ev});
276	root	1.1	}
277
278			$self->msg (ws_c =>
279	root	1.16	$self->{id},
280	root	1.17	$proxy->{id},
281	root	1.14	$class,
282			\%args,
283	root	1.1	);
284
285			$proxy
286			}
287
288	root	1.20	sub template {
289	root	1.21	my ($self, $type, $template, $args, $done_cb) = @_;
290	root	1.20
291			my %cfg;
292			my @res;
293
294	root	1.21	while (@$args) {
295			my ($name, $args) = splice @$args, 0, 2, ();
296	root	1.20
297			my $proxy = $self->alloc;
298
299			Scalar::Util::weaken ($self->{_w}{$proxy->{id}} = $proxy);
300			Scalar::Util::weaken ($proxy->{ws} = $self);
301
302			for my $ev (grep /^on_/, keys %$args) {
303			$args->{$ev} = $proxy->{"_$ev"} = $proxy->cb ($args->{$ev});
304			}
305
306			$cfg{$name} = {
307			%$args,
308			id => $proxy->{id},
309			};
310
311			push @res, $proxy;
312			}
313
314	root	1.21	if ($done_cb) {
315			my $proxy = $self->alloc;
316			my $ocb = $done_cb;
317			$done_cb = $proxy->cb (sub {
318			undef $proxy;
319			undef $done_cb;
320			&$ocb
321			});
322			}
323
324	root	1.20	$self->msg (ws_ct =>
325			$self->{id},
326	root	1.21	$type => $template,
327			$done_cb,
328	root	1.20	\%cfg,
329			);
330
331			@res
332			}
333
334	root	1.17	sub find {
335			my ($self, @names) = @_;
336
337			my @res;
338			my @alloc;
339
340			for my $name (@names) {
341			push @res, $self->{ns}{widget_wkw}{$name} \|\|= do {
342			my $proxy = $self->alloc;
343
344			push @alloc, $proxy->{id} => $name;
345
346			$proxy
347			};
348			}
349
350			$self->msg (ws_a => @alloc)
351			if @alloc;
352
353			wantarray ? @res : $res[0]
354			}
355
356	root	1.1	#############################################################################
357
358			package ext::widget::proxy;
359
360			sub DESTROY {
361			my ($self) = @_;
362
363			delete $self->{ns}{widget}{$self->{id}};
364
365			if (my $ws = $self->{ws}) {
366	root	1.14	$self->msg (w_c => 0, "destroy");
367	root	1.12	delete $ws->{_w}{$self->{id}};
368	root	1.1	}
369			}
370
371	root	1.19	sub cb {
372			my ($self, $cb) = @_;
373
374			my $proxy = bless {
375			ns => $self->{ns},
376			id => $self->{ns}->alloc_wid,
377			}, "ext::widget::callback";
378
379			Scalar::Util::weaken $proxy->{ns};
380
381			$self->{ns}{widget_cb}{$proxy->{id}} = $cb;
382
383			$proxy
384			}
385
386			sub oneshot_cb {
387			my ($self, $cb) = @_;
388
389			if ("CODE" eq ref $cb) {
390			my $ocb = $cb;
391			$cb = $self->cb (sub {
392			undef $cb;
393			&$ocb
394			});
395			}
396
397			$cb
398			}
399
400	root	1.1	sub msg {
401	root	1.14	my ($self, $type, @arg) = @_;
402	root	1.1
403	root	1.17	if (my $ns = $self->{ns}) {
404			my @msg = ($type, $self->{id}, @arg);
405			warn "MSG " . $ns->{json_coder}->encode (\@msg) if $DEBUG;#d#
406			$ns->send_packet ("ext " . $ns->{json_coder}->encode (\@msg));
407	root	1.1	}
408			}
409
410			sub msg_cb {
411	root	1.14	my ($self, $cb, $type, @arg) = @_;
412	root	1.1
413			if (my $ws = $self->{ws}) {
414	root	1.19	my $rid = $ws->{ns}->alloc_wid;
415	root	1.1
416	root	1.19	if ($cb) {
417			$ws->{ns}{widget_cb}{$rid} = sub {
418			delete $ws->{ns}{widget_cb}{$rid};
419			$ws->{ns}->free_wid ($rid);
420			&$cb
421			};
422	root	1.1
423	root	1.19	$self->msg ($type, $rid, @arg);
424	root	1.1	} else {
425			# synchronous case
426			my $wait = new Coro::Signal;
427			my @res;
428
429	root	1.19	$ws->{ns}{widget_cb}{$rid} = sub {
430			delete $ws->{ns}{widget_cb}{$rid};
431			$ws->{ns}->free_wid ($rid);
432
433	root	1.1	@res = @_;
434			$wait->send;
435			};
436	root	1.19	$self->msg ($type, $rid, @arg);
437	root	1.1	$wait->wait;
438
439			return @res;
440			}
441			}
442
443			()
444			}
445
446			sub set {
447	root	1.12	my ($self, @kv) = @_;
448	root	1.1
449	root	1.14	$self->msg (w_s => \@kv);
450	root	1.1	}
451
452			sub get {
453			my ($self, $member, $cb) = @_;
454
455	root	1.19	$self->msg_cb ($cb, w_g => ref $member ? @$member : $member);
456	root	1.1	}
457
458			sub TO_JSON {
459	root	1.19	{ "\fw" => $_[0]{id} }
460	root	1.1	}
461
462			our $AUTOLOAD;
463
464			sub AUTOLOAD {
465			$AUTOLOAD =~ s/^.*://
466			or return;
467
468			my $self = shift;
469
470	root	1.17	#TODO: handle non-void context
471			$self->msg (w_c => 0, $AUTOLOAD, @_);
472	root	1.1
473			()
474			}
475
476	root	1.19	package ext::widget::callback;
477
478			sub DESTROY {
479			my ($self) = @_;
480
481			if (my $ns = $self->{ns}) {
482			delete $ns->{widget_cb}{$self->{id}};
483			$ns->free_wid ($self->{id});
484			}
485			}
486
487			sub TO_JSON {
488			{ "\fc" => $_[0]{id} }
489			}
490