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
# 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);
   }
}

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

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

   $ws->{tab} = $ws->new (Label => text => "dumb tst", c_tab => ["hull"]);
   
   $ws->find ("setup_notebook")->add ($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 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:	1.19
Committed:	Sat Sep 1 07:22:20 2007 UTC (19 years, 1 month ago) by root
Branch:	MAIN
CVS Tags:	rel-2_2, rel-2_3, rel-2_32
Changes since 1.18:	+76 -31 lines
Log Message:	simpler, more powerful and slightly less compact widget protocol
#	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			# w_c id rid name @args # widget method call
9	root	1.10	# w_s id @attr # widget member set
10			# w_g id rid @attr # widget member get
11	root	1.1	#
12			# and expects the following exti message types
13	root	1.19	# w_e id @args # widget_call
14	root	1.1
15	root	1.13	our $DEBUG = 1;
16
17	root	1.1	cf::client->attach (
18			on_connect => sub {
19			my ($ns) = @_;
20
21	root	1.4	Scalar::Util::weaken (my $weakns = $ns);
22
23	root	1.1	$ns->{id} = "a";
24	root	1.19	$ns->{json_coder}->filter_json_single_key_object ("\fw" => sub {
25			$weakns->{widget}{$_[0]}
26	root	1.4	});
27	root	1.1	},
28			);
29
30	root	1.2	sub csc_update_stats {
31			my ($ns) = @_;
32
33			while (my ($k, $v) = each %{ $ns->{csc}{stat} }) {
34			$v->set_text ($ns->pl->ob->stats->$k);
35			}
36			}
37
38	root	1.17	sub demo_start {
39			my ($ns) = @_;
40
41			my $ws = $ns->{csc} = $ns->new_widgetset;
42
43			$ws->{tab} = $ws->new (Label => text => "dumb tst", c_tab => ["hull"]);
44
45			$ws->find ("setup_notebook")->add ($ws->{tab});
46			$ws->find ("setup_dialog")->toggle_visibility;
47			}
48
49	root	1.2	sub csc_start {
50			my ($ns) = @_;
51
52			my $ws = $ns->{csc} = $ns->new_widgetset;
53
54			my $w = $ws->new (Toplevel =>
55			min_w => 600,
56			min_h => 400,
57			x => "center",
58			y => "center",
59			title => "Character Creation",
60	root	1.3	has_close_button => 1,
61			on_delete => sub {
62			$ws->destroy;
63			},
64	root	1.2	);
65
66			$w->add (my $ntb = $ws->new (Notebook => expand => 1));
67
68	root	1.17	$ntb->add_tab (Statistics => (my $stats = $ws->new (Table => expand => 1)), "Basic statistics of your new character");
69	root	1.2
70	root	1.17	$stats->add_at (0, 0, (my $statstable = $ws->new ("Table")));
71	root	1.2
72			for (
73	root	1.3	[0, "Str"],
74			[1, "Dex"],
75			[2, "Con"],
76			[3, "Int"],
77			[4, "Wis"],
78			[5, "Pow"],
79			[6, "Cha"],
80	root	1.2	) {
81	root	1.3	my ($x, $label) = @$_;
82	root	1.2
83	root	1.9	$statstable->add_at ($x, 0, $ws->new (Label =>
84	root	1.2	can_hover => 1, can_events => 1,
85			align => +1, text => $label, tooltip => "#stat_$label",
86			));
87	root	1.9	$statstable->add_at ($x, 1, $ws->{stat}{$label} = $ws->new (Label =>
88	root	1.2	can_hover => 1, can_events => 1,
89			align => +1, template => "88", tooltip => "#stat_$label",
90			));
91			}
92
93			csc_update_stats $ns;
94
95	root	1.17	$ws->{tl} = $w;
96	root	1.2	$w->show;
97			}
98
99	root	1.1	cf::player->attach (
100			on_login => sub {
101			my ($pl) = @_;
102
103	root	1.8	return unless $cf::CFG{devel};
104	root	1.1
105			my $ns = $pl->ns;
106
107	root	1.2	return unless $ns->{can_widget};
108	root	1.5	#csc_start $ns;
109	root	1.18	#demo_start $ns;
110	root	1.1	},
111			);
112
113			cf::register_exticmd w_e => sub {
114	root	1.19	my ($ns, $id, @args) = @_;
115	root	1.1
116	root	1.19	if (my $cb = $ns->{widget_cb}{$id}) {
117			$cb->(@args);
118	root	1.1	}
119
120			()
121			};
122
123			sub cf::client::new_widgetset {
124			my ($self) = @_;
125
126			my $id = ++$self->{id};
127
128			my $ws = bless {
129			id => $id,
130			ns => $self,
131	root	1.12	_w => {},
132	root	1.1	}, "ext::widget::set";
133
134	root	1.14	$ws->msg (ws_n => $id);
135	root	1.1
136			$ws
137			}
138
139	root	1.19	sub cf::client::alloc_wid {
140			pop @{ $_[0]{ids} }
141			or ++$_[0]{id}
142			}
143
144			sub cf::client::free_wid {
145			push @{ $_[0]{ids} }, $_[1];
146			}
147
148	root	1.1	#############################################################################
149
150			package ext::widget::set;
151
152			sub DESTROY {
153			$_[0]->destroy;
154			}
155
156			sub destroy {
157			my ($self) = @_;
158
159	root	1.14	$self->msg (ws_d => $self->{id});
160	root	1.1	delete $self->{ns};
161			$_->destroy
162			for values %{ $self->{w} };
163			}
164
165			sub msg {
166	root	1.14	my ($self, @msg) = @_;
167	root	1.1
168			if (my $ns = shift->{ns}) {
169	root	1.14	warn "msg " . $ns->{json_coder}->encode (\@msg) if $DEBUG;#d#
170			$ns->send_packet ("ext " . $ns->{json_coder}->encode (\@msg));
171	root	1.1	}
172			}
173
174	root	1.17	sub alloc {
175			my ($self) = @_;
176	root	1.1
177	root	1.19	my $id = $self->{ns}->alloc_wid;
178	root	1.1
179	root	1.13	my $proxy = bless {
180	root	1.1	id => $id,
181			}, "ext::widget::proxy";
182
183			Scalar::Util::weaken ($proxy->{ns} = $self->{ns});
184			Scalar::Util::weaken ($self->{ns}{widget}{$id} = $proxy);
185
186	root	1.17	$proxy
187			}
188
189			sub new {
190			my ($self, $class, %args) = @_;
191
192			my $proxy = $self->alloc;
193
194			Scalar::Util::weaken ($self->{_w}{$proxy->{id}} = $proxy);
195			Scalar::Util::weaken ($proxy->{ws} = $self);
196
197	root	1.1	for my $ev (grep /^on_/, keys %args) {
198	root	1.19	$args{$ev} = $proxy->{"_$ev"} = $proxy->cb ($args{$ev});
199	root	1.1	}
200
201			$self->msg (ws_c =>
202	root	1.16	$self->{id},
203	root	1.17	$proxy->{id},
204	root	1.14	$class,
205			\%args,
206	root	1.1	);
207
208			$proxy
209			}
210
211	root	1.17	sub find {
212			my ($self, @names) = @_;
213
214			my @res;
215			my @alloc;
216
217			for my $name (@names) {
218			push @res, $self->{ns}{widget_wkw}{$name} \|\|= do {
219			my $proxy = $self->alloc;
220
221			push @alloc, $proxy->{id} => $name;
222
223			$proxy
224			};
225			}
226
227			$self->msg (ws_a => @alloc)
228			if @alloc;
229
230			wantarray ? @res : $res[0]
231			}
232
233	root	1.1	#############################################################################
234
235			package ext::widget::proxy;
236
237			sub DESTROY {
238			my ($self) = @_;
239
240			delete $self->{ns}{widget}{$self->{id}};
241
242			if (my $ws = $self->{ws}) {
243	root	1.14	$self->msg (w_c => 0, "destroy");
244	root	1.12	delete $ws->{_w}{$self->{id}};
245	root	1.1	}
246			}
247
248	root	1.19	sub cb {
249			my ($self, $cb) = @_;
250
251			my $proxy = bless {
252			ns => $self->{ns},
253			id => $self->{ns}->alloc_wid,
254			}, "ext::widget::callback";
255
256			Scalar::Util::weaken $proxy->{ns};
257
258			$self->{ns}{widget_cb}{$proxy->{id}} = $cb;
259
260			$proxy
261			}
262
263			sub oneshot_cb {
264			my ($self, $cb) = @_;
265
266			if ("CODE" eq ref $cb) {
267			my $ocb = $cb;
268			$cb = $self->cb (sub {
269			undef $cb;
270			&$ocb
271			});
272			}
273
274			$cb
275			}
276
277	root	1.1	sub msg {
278	root	1.14	my ($self, $type, @arg) = @_;
279	root	1.1
280	root	1.17	if (my $ns = $self->{ns}) {
281			my @msg = ($type, $self->{id}, @arg);
282			warn "MSG " . $ns->{json_coder}->encode (\@msg) if $DEBUG;#d#
283			$ns->send_packet ("ext " . $ns->{json_coder}->encode (\@msg));
284	root	1.1	}
285			}
286
287			sub msg_cb {
288	root	1.14	my ($self, $cb, $type, @arg) = @_;
289	root	1.1
290			if (my $ws = $self->{ws}) {
291	root	1.19	my $rid = $ws->{ns}->alloc_wid;
292	root	1.1
293	root	1.19	if ($cb) {
294			$ws->{ns}{widget_cb}{$rid} = sub {
295			delete $ws->{ns}{widget_cb}{$rid};
296			$ws->{ns}->free_wid ($rid);
297			&$cb
298			};
299	root	1.1
300	root	1.19	$self->msg ($type, $rid, @arg);
301	root	1.1	} else {
302			# synchronous case
303			my $wait = new Coro::Signal;
304			my @res;
305
306	root	1.19	$ws->{ns}{widget_cb}{$rid} = sub {
307			delete $ws->{ns}{widget_cb}{$rid};
308			$ws->{ns}->free_wid ($rid);
309
310	root	1.1	@res = @_;
311			$wait->send;
312			};
313	root	1.19	$self->msg ($type, $rid, @arg);
314	root	1.1	$wait->wait;
315
316			return @res;
317			}
318			}
319
320			()
321			}
322
323			sub set {
324	root	1.12	my ($self, @kv) = @_;
325	root	1.1
326	root	1.14	$self->msg (w_s => \@kv);
327	root	1.1	}
328
329			sub get {
330			my ($self, $member, $cb) = @_;
331
332	root	1.19	$self->msg_cb ($cb, w_g => ref $member ? @$member : $member);
333	root	1.1	}
334
335			sub TO_JSON {
336	root	1.19	{ "\fw" => $_[0]{id} }
337	root	1.1	}
338
339			our $AUTOLOAD;
340
341			sub AUTOLOAD {
342			$AUTOLOAD =~ s/^.*://
343			or return;
344
345			my $self = shift;
346
347	root	1.17	#TODO: handle non-void context
348			$self->msg (w_c => 0, $AUTOLOAD, @_);
349	root	1.1
350			()
351			}
352
353	root	1.19	package ext::widget::callback;
354
355			sub DESTROY {
356			my ($self) = @_;
357
358			if (my $ns = $self->{ns}) {
359			delete $ns->{widget_cb}{$self->{id}};
360			$ns->free_wid ($self->{id});
361			}
362			}
363
364			sub TO_JSON {
365			{ "\fc" => $_[0]{id} }
366			}
367