2 * Copyright © 2010 Codethink Limited
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published
6 * by the Free Software Foundation; either version 2 of the licence or (at
7 * your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General
15 * Public License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
17 * Boston, MA 02111-1307, USA.
19 * Authors: Ryan Lortie <desrt@desrt.ca>
22 #include "gsimpleactiongroup.h"
26 * SECTION:gsimpleactiongroup
27 * @title: GSimpleActionGroup
28 * @short_description: A simple GActionGroup implementation
30 * #GSimpleActionGroup is a hash table filled with #GAction objects,
31 * implementing the #GActionGroup interface.
34 struct _GSimpleActionGroupPrivate
36 GHashTable
*table
; /* string -> GAction */
39 static void g_simple_action_group_iface_init (GActionGroupInterface
*);
40 G_DEFINE_TYPE_WITH_CODE (GSimpleActionGroup
,
41 g_simple_action_group
, G_TYPE_OBJECT
,
42 G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP
,
43 g_simple_action_group_iface_init
))
46 g_simple_action_group_list_actions (GActionGroup
*group
)
48 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (group
);
54 n
= g_hash_table_size (simple
->priv
->table
);
55 keys
= g_new (gchar
*, n
+ 1);
57 g_hash_table_iter_init (&iter
, simple
->priv
->table
);
58 while (g_hash_table_iter_next (&iter
, &key
, NULL
))
59 keys
[i
++] = g_strdup (key
);
60 g_assert_cmpint (i
, ==, n
);
67 g_simple_action_group_has_action (GActionGroup
*group
,
68 const gchar
*action_name
)
70 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (group
);
72 return g_hash_table_lookup (simple
->priv
->table
, action_name
) != NULL
;
75 static const GVariantType
*
76 g_simple_action_group_get_parameter_type (GActionGroup
*group
,
77 const gchar
*action_name
)
79 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (group
);
82 action
= g_hash_table_lookup (simple
->priv
->table
, action_name
);
87 return g_action_get_parameter_type (action
);
90 static const GVariantType
*
91 g_simple_action_group_get_state_type (GActionGroup
*group
,
92 const gchar
*action_name
)
94 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (group
);
97 action
= g_hash_table_lookup (simple
->priv
->table
, action_name
);
102 return g_action_get_state_type (action
);
106 g_simple_action_group_get_state_hint (GActionGroup
*group
,
107 const gchar
*action_name
)
109 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (group
);
112 action
= g_hash_table_lookup (simple
->priv
->table
, action_name
);
117 return g_action_get_state_hint (action
);
121 g_simple_action_group_get_enabled (GActionGroup
*group
,
122 const gchar
*action_name
)
124 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (group
);
127 action
= g_hash_table_lookup (simple
->priv
->table
, action_name
);
132 return g_action_get_enabled (action
);
136 g_simple_action_group_get_state (GActionGroup
*group
,
137 const gchar
*action_name
)
139 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (group
);
142 action
= g_hash_table_lookup (simple
->priv
->table
, action_name
);
147 return g_action_get_state (action
);
151 g_simple_action_group_set_state (GActionGroup
*group
,
152 const gchar
*action_name
,
155 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (group
);
158 action
= g_hash_table_lookup (simple
->priv
->table
, action_name
);
163 g_action_set_state (action
, value
);
167 g_simple_action_group_activate (GActionGroup
*group
,
168 const gchar
*action_name
,
171 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (group
);
174 action
= g_hash_table_lookup (simple
->priv
->table
, action_name
);
179 g_action_activate (action
, parameter
);
183 action_enabled_notify (GAction
*action
,
187 g_action_group_action_enabled_changed (user_data
,
188 g_action_get_name (action
),
189 g_action_get_enabled (action
));
193 action_state_notify (GAction
*action
,
199 value
= g_action_get_state (action
);
200 g_action_group_action_state_changed (user_data
,
201 g_action_get_name (action
),
203 g_variant_unref (value
);
207 g_simple_action_group_disconnect (gpointer key
,
211 g_signal_handlers_disconnect_by_func (value
, action_enabled_notify
,
213 g_signal_handlers_disconnect_by_func (value
, action_state_notify
,
218 g_simple_action_group_finalize (GObject
*object
)
220 GSimpleActionGroup
*simple
= G_SIMPLE_ACTION_GROUP (object
);
222 g_hash_table_foreach (simple
->priv
->table
,
223 g_simple_action_group_disconnect
,
225 g_hash_table_unref (simple
->priv
->table
);
227 G_OBJECT_CLASS (g_simple_action_group_parent_class
)
232 g_simple_action_group_init (GSimpleActionGroup
*simple
)
234 simple
->priv
= G_TYPE_INSTANCE_GET_PRIVATE (simple
,
235 G_TYPE_SIMPLE_ACTION_GROUP
,
236 GSimpleActionGroupPrivate
);
237 simple
->priv
->table
= g_hash_table_new_full (g_str_hash
, g_str_equal
,
238 g_free
, g_object_unref
);
242 g_simple_action_group_class_init (GSimpleActionGroupClass
*class)
244 GObjectClass
*object_class
= G_OBJECT_CLASS (class);
246 object_class
->finalize
= g_simple_action_group_finalize
;
248 g_type_class_add_private (class, sizeof (GSimpleActionGroupPrivate
));
252 g_simple_action_group_iface_init (GActionGroupInterface
*iface
)
254 iface
->list_actions
= g_simple_action_group_list_actions
;
255 iface
->has_action
= g_simple_action_group_has_action
;
256 iface
->get_action_parameter_type
= g_simple_action_group_get_parameter_type
;
257 iface
->get_action_state_type
= g_simple_action_group_get_state_type
;
258 iface
->get_action_state_hint
= g_simple_action_group_get_state_hint
;
259 iface
->get_action_enabled
= g_simple_action_group_get_enabled
;
260 iface
->get_action_state
= g_simple_action_group_get_state
;
261 iface
->change_action_state
= g_simple_action_group_set_state
;
262 iface
->activate_action
= g_simple_action_group_activate
;
266 * g_simple_action_group_new:
268 * Creates a new, empty, #GSimpleActionGroup.
270 * Returns: a new #GSimpleActionGroup
275 g_simple_action_group_new (void)
277 return g_object_new (G_TYPE_SIMPLE_ACTION_GROUP
, NULL
);
281 * g_simple_action_group_lookup:
282 * @simple: a #GSimpleActionGroup
283 * @action_name: the name of an action
285 * Looks up the action with the name @action_name in the group.
287 * If no such action exists, returns %NULL.
289 * Returns: (transfer none): a #GAction, or %NULL
294 g_simple_action_group_lookup (GSimpleActionGroup
*simple
,
295 const gchar
*action_name
)
297 g_return_val_if_fail (G_IS_SIMPLE_ACTION_GROUP (simple
), NULL
);
299 return g_hash_table_lookup (simple
->priv
->table
, action_name
);
303 * g_simple_action_group_insert:
304 * @simple: a #GSimpleActionGroup
305 * @action: a #GAction
307 * Adds an action to the action group.
309 * If the action group already contains an action with the same name as
310 * @action then the old action is dropped from the group.
312 * The action group takes its own reference on @action.
317 g_simple_action_group_insert (GSimpleActionGroup
*simple
,
320 const gchar
*action_name
;
323 g_return_if_fail (G_IS_SIMPLE_ACTION_GROUP (simple
));
324 g_return_if_fail (G_IS_ACTION (action
));
326 action_name
= g_action_get_name (action
);
327 old_action
= g_hash_table_lookup (simple
->priv
->table
, action_name
);
329 if (old_action
!= action
)
331 if (old_action
!= NULL
)
333 g_action_group_action_removed (G_ACTION_GROUP (simple
),
335 g_simple_action_group_disconnect (NULL
, old_action
, simple
);
338 g_signal_connect (action
, "notify::enabled",
339 G_CALLBACK (action_enabled_notify
), simple
);
341 if (g_action_get_state_type (action
) != NULL
)
342 g_signal_connect (action
, "notify::state",
343 G_CALLBACK (action_state_notify
), simple
);
345 g_hash_table_insert (simple
->priv
->table
,
346 g_strdup (action_name
),
347 g_object_ref (action
));
349 g_action_group_action_added (G_ACTION_GROUP (simple
), action_name
);
354 * g_simple_action_group_remove:
355 * @simple: a #GSimpleActionGroup
356 * @action_name: the name of the action
358 * Removes the named action from the action group.
360 * If no action of this name is in the group then nothing happens.
365 g_simple_action_group_remove (GSimpleActionGroup
*simple
,
366 const gchar
*action_name
)
370 g_return_if_fail (G_IS_SIMPLE_ACTION_GROUP (simple
));
372 action
= g_hash_table_lookup (simple
->priv
->table
, action_name
);
376 g_action_group_action_removed (G_ACTION_GROUP (simple
), action_name
);
377 g_simple_action_group_disconnect (NULL
, action
, simple
);
378 g_hash_table_remove (simple
->priv
->table
, action_name
);