2 Handle any events in application.
3 Manage events: add, delete, destroy, search
6 The Free Software Foundation, Inc.
9 Slava Zanko <slavazanko@gmail.com>, 2011.
11 This file is part of the Midnight Commander.
13 The Midnight Commander is free software: you can redistribute it
14 and/or modify it under the terms of the GNU General Public License as
15 published by the Free Software Foundation, either version 3 of the License,
16 or (at your option) any later version.
18 The Midnight Commander is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 #include "lib/global.h"
30 #include "lib/event.h"
34 /*** global variables ****************************************************************************/
36 /*** file scope macro definitions ****************************************************************/
38 /*** file scope type declarations ****************************************************************/
40 /*** file scope variables ************************************************************************/
42 /*** file scope functions ************************************************************************/
43 /* --------------------------------------------------------------------------------------------- */
46 mc_event_group_destroy_value (gpointer data
)
50 callbacks
= (GPtrArray
*) data
;
51 g_ptr_array_foreach (callbacks
, (GFunc
) g_free
, NULL
);
52 g_ptr_array_free (callbacks
, TRUE
);
55 /* --------------------------------------------------------------------------------------------- */
58 /* --------------------------------------------------------------------------------------------- */
59 /*** public functions ****************************************************************************/
60 /* --------------------------------------------------------------------------------------------- */
63 mc_event_add (const gchar
* event_group_name
, const gchar
* event_name
,
64 mc_event_callback_func_t event_callback
, gpointer event_init_data
, GError
** mcerror
)
69 mc_event_callback_t
*cb
;
71 if (mc_event_grouplist
== NULL
|| event_group_name
== NULL
|| event_name
== NULL
72 || event_callback
== NULL
)
74 g_propagate_error (mcerror
,
75 g_error_new (MC_ERROR
, 1,
76 _("Check input data! Some of parameters are NULL!")));
80 event_group
= mc_event_get_event_group_by_name (event_group_name
, TRUE
, mcerror
);
81 if (event_group
== NULL
)
84 callbacks
= mc_event_get_event_by_name (event_group
, event_name
, TRUE
, mcerror
);
85 if (callbacks
== NULL
)
88 cb
= mc_event_is_callback_in_array (callbacks
, event_callback
, event_init_data
);
91 cb
= g_new0 (mc_event_callback_t
, 1);
92 cb
->callback
= event_callback
;
93 g_ptr_array_add (callbacks
, (gpointer
) cb
);
95 cb
->init_data
= event_init_data
;
99 /* --------------------------------------------------------------------------------------------- */
102 mc_event_del (const gchar
* event_group_name
, const gchar
* event_name
,
103 mc_event_callback_func_t event_callback
, gpointer event_init_data
)
106 GPtrArray
*callbacks
;
107 mc_event_callback_t
*cb
;
109 if (mc_event_grouplist
== NULL
|| event_group_name
== NULL
|| event_name
== NULL
110 || event_callback
== NULL
)
113 event_group
= mc_event_get_event_group_by_name (event_group_name
, FALSE
, NULL
);
114 if (event_group
== NULL
)
117 callbacks
= mc_event_get_event_by_name (event_group
, event_name
, FALSE
, NULL
);
118 if (callbacks
== NULL
)
121 cb
= mc_event_is_callback_in_array (callbacks
, event_callback
, event_init_data
);
126 g_ptr_array_remove (callbacks
, (gpointer
) cb
);
127 g_free ((gpointer
) cb
);
130 /* --------------------------------------------------------------------------------------------- */
133 mc_event_destroy (const gchar
* event_group_name
, const gchar
* event_name
)
137 if (mc_event_grouplist
== NULL
|| event_group_name
== NULL
|| event_name
== NULL
)
140 event_group
= mc_event_get_event_group_by_name (event_group_name
, FALSE
, NULL
);
141 g_tree_remove (event_group
, (gconstpointer
) event_name
);
144 /* --------------------------------------------------------------------------------------------- */
147 mc_event_group_del (const gchar
* event_group_name
)
150 if (mc_event_grouplist
!= NULL
&& event_group_name
!= NULL
)
151 g_tree_remove (mc_event_grouplist
, (gconstpointer
) event_group_name
);
154 /* --------------------------------------------------------------------------------------------- */
157 mc_event_get_event_group_by_name (const gchar
* event_group_name
, gboolean create_new
,
162 event_group
= (GTree
*) g_tree_lookup (mc_event_grouplist
, (gconstpointer
) event_group_name
);
163 if (event_group
== NULL
&& create_new
)
166 g_tree_new_full ((GCompareDataFunc
) g_ascii_strcasecmp
,
168 (GDestroyNotify
) g_free
,
169 (GDestroyNotify
) mc_event_group_destroy_value
);
170 if (event_group
== NULL
)
172 g_propagate_error (mcerror
,
173 g_error_new (MC_ERROR
, 1,
174 _("Unable to create group '%s' for events!"),
178 g_tree_insert (mc_event_grouplist
, g_strdup (event_group_name
), (gpointer
) event_group
);
183 /* --------------------------------------------------------------------------------------------- */
186 mc_event_get_event_by_name (GTree
* event_group
, const gchar
* event_name
, gboolean create_new
,
189 GPtrArray
*callbacks
;
191 callbacks
= (GPtrArray
*) g_tree_lookup (event_group
, (gconstpointer
) event_name
);
192 if (callbacks
== NULL
&& create_new
)
194 callbacks
= g_ptr_array_new ();
195 if (callbacks
== NULL
)
197 g_propagate_error (mcerror
,
198 g_error_new (MC_ERROR
, 1,
199 _("Unable to create event '%s'!"), event_name
));
202 g_tree_insert (event_group
, g_strdup (event_name
), (gpointer
) callbacks
);
207 /* --------------------------------------------------------------------------------------------- */
209 mc_event_callback_t
*
210 mc_event_is_callback_in_array (GPtrArray
* callbacks
, mc_event_callback_func_t event_callback
,
211 gpointer event_init_data
)
215 for (array_index
= 0; array_index
< callbacks
->len
; array_index
++)
217 mc_event_callback_t
*cb
= g_ptr_array_index (callbacks
, array_index
);
218 if (cb
->callback
== event_callback
&& cb
->init_data
== event_init_data
)
224 /* --------------------------------------------------------------------------------------------- */