2 Handle any events in application.
3 Manage events: add, delete, destroy, search
5 Copyright (C) 2011-2016
6 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"
31 #include "lib/event.h"
35 /*** global variables ****************************************************************************/
37 /*** file scope macro definitions ****************************************************************/
39 /*** file scope type declarations ****************************************************************/
41 /*** file scope variables ************************************************************************/
43 /*** file scope functions ************************************************************************/
44 /* --------------------------------------------------------------------------------------------- */
47 mc_event_group_destroy_value (gpointer data
)
51 callbacks
= (GPtrArray
*) data
;
52 g_ptr_array_foreach (callbacks
, (GFunc
) g_free
, NULL
);
53 g_ptr_array_free (callbacks
, TRUE
);
56 /* --------------------------------------------------------------------------------------------- */
59 /* --------------------------------------------------------------------------------------------- */
60 /*** public functions ****************************************************************************/
61 /* --------------------------------------------------------------------------------------------- */
64 mc_event_add (const gchar
* event_group_name
, const gchar
* event_name
,
65 mc_event_callback_func_t event_callback
, gpointer event_init_data
, GError
** mcerror
)
70 mc_event_callback_t
*cb
;
72 mc_return_val_if_error (mcerror
, FALSE
);
74 if (mc_event_grouplist
== NULL
|| event_group_name
== NULL
|| event_name
== NULL
75 || event_callback
== NULL
)
77 mc_propagate_error (mcerror
, 0, "%s", _("Check input data! Some of parameters are NULL!"));
81 event_group
= mc_event_get_event_group_by_name (event_group_name
, TRUE
, mcerror
);
82 if (event_group
== NULL
)
85 callbacks
= mc_event_get_event_by_name (event_group
, event_name
, TRUE
, mcerror
);
86 if (callbacks
== NULL
)
89 cb
= mc_event_is_callback_in_array (callbacks
, event_callback
, event_init_data
);
92 cb
= g_new0 (mc_event_callback_t
, 1);
93 cb
->callback
= event_callback
;
94 g_ptr_array_add (callbacks
, (gpointer
) cb
);
96 cb
->init_data
= event_init_data
;
100 /* --------------------------------------------------------------------------------------------- */
103 mc_event_del (const gchar
* event_group_name
, const gchar
* event_name
,
104 mc_event_callback_func_t event_callback
, gpointer event_init_data
)
107 GPtrArray
*callbacks
;
108 mc_event_callback_t
*cb
;
110 if (mc_event_grouplist
== NULL
|| event_group_name
== NULL
|| event_name
== NULL
111 || event_callback
== NULL
)
114 event_group
= mc_event_get_event_group_by_name (event_group_name
, FALSE
, NULL
);
115 if (event_group
== NULL
)
118 callbacks
= mc_event_get_event_by_name (event_group
, event_name
, FALSE
, NULL
);
119 if (callbacks
== NULL
)
122 cb
= mc_event_is_callback_in_array (callbacks
, event_callback
, event_init_data
);
127 g_ptr_array_remove (callbacks
, (gpointer
) cb
);
128 g_free ((gpointer
) cb
);
131 /* --------------------------------------------------------------------------------------------- */
134 mc_event_destroy (const gchar
* event_group_name
, const gchar
* event_name
)
138 if (mc_event_grouplist
== NULL
|| event_group_name
== NULL
|| event_name
== NULL
)
141 event_group
= mc_event_get_event_group_by_name (event_group_name
, FALSE
, NULL
);
142 g_tree_remove (event_group
, (gconstpointer
) event_name
);
145 /* --------------------------------------------------------------------------------------------- */
148 mc_event_group_del (const gchar
* event_group_name
)
151 if (mc_event_grouplist
!= NULL
&& event_group_name
!= NULL
)
152 g_tree_remove (mc_event_grouplist
, (gconstpointer
) event_group_name
);
155 /* --------------------------------------------------------------------------------------------- */
158 mc_event_get_event_group_by_name (const gchar
* event_group_name
, gboolean create_new
,
163 mc_return_val_if_error (mcerror
, FALSE
);
165 event_group
= (GTree
*) g_tree_lookup (mc_event_grouplist
, (gconstpointer
) event_group_name
);
166 if (event_group
== NULL
&& create_new
)
169 g_tree_new_full ((GCompareDataFunc
) g_ascii_strcasecmp
,
171 (GDestroyNotify
) g_free
,
172 (GDestroyNotify
) mc_event_group_destroy_value
);
173 if (event_group
== NULL
)
175 mc_propagate_error (mcerror
, 0, _("Unable to create group '%s' for events!"),
179 g_tree_insert (mc_event_grouplist
, g_strdup (event_group_name
), (gpointer
) event_group
);
184 /* --------------------------------------------------------------------------------------------- */
187 mc_event_get_event_by_name (GTree
* event_group
, const gchar
* event_name
, gboolean create_new
,
190 GPtrArray
*callbacks
;
192 mc_return_val_if_error (mcerror
, FALSE
);
194 callbacks
= (GPtrArray
*) g_tree_lookup (event_group
, (gconstpointer
) event_name
);
195 if (callbacks
== NULL
&& create_new
)
197 callbacks
= g_ptr_array_new ();
198 if (callbacks
== NULL
)
200 mc_propagate_error (mcerror
, 0, _("Unable to create event '%s'!"), event_name
);
203 g_tree_insert (event_group
, g_strdup (event_name
), (gpointer
) callbacks
);
208 /* --------------------------------------------------------------------------------------------- */
210 mc_event_callback_t
*
211 mc_event_is_callback_in_array (GPtrArray
* callbacks
, mc_event_callback_func_t event_callback
,
212 gpointer event_init_data
)
216 for (array_index
= 0; array_index
< callbacks
->len
; array_index
++)
218 mc_event_callback_t
*cb
= g_ptr_array_index (callbacks
, array_index
);
219 if (cb
->callback
== event_callback
&& cb
->init_data
== event_init_data
)
225 /* --------------------------------------------------------------------------------------------- */