1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/*
Handle any events in application.
Manage events: add, delete, destroy, search
Copyright (C) 2011-2024
Free Software Foundation, Inc.
Written by:
Slava Zanko <slavazanko@gmail.com>, 2011.
This file is part of the Midnight Commander.
The Midnight Commander is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
The Midnight Commander is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "lib/global.h"
#include "lib/util.h"
#include "lib/event.h"
#include "internal.h"
/*** global variables ****************************************************************************/
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** forward declarations (file scope functions) *************************************************/
/*** file scope variables ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
/*** file scope functions ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
static void
mc_event_group_destroy_value (gpointer data)
{
g_ptr_array_free ((GPtrArray *) data, TRUE);
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
gboolean
mc_event_add (const gchar * event_group_name, const gchar * event_name,
mc_event_callback_func_t event_callback, gpointer event_init_data, GError ** mcerror)
{
GTree *event_group;
GPtrArray *callbacks;
mc_event_callback_t *cb;
mc_return_val_if_error (mcerror, FALSE);
if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL
|| event_callback == NULL)
{
mc_propagate_error (mcerror, 0, "%s", _("Check input data! Some of parameters are NULL!"));
return FALSE;
}
event_group = mc_event_get_event_group_by_name (event_group_name, TRUE, mcerror);
if (event_group == NULL)
return FALSE;
callbacks = mc_event_get_event_by_name (event_group, event_name, TRUE, mcerror);
if (callbacks == NULL)
return FALSE;
cb = mc_event_is_callback_in_array (callbacks, event_callback, event_init_data);
if (cb == NULL)
{
cb = g_new0 (mc_event_callback_t, 1);
cb->callback = event_callback;
g_ptr_array_add (callbacks, (gpointer) cb);
}
cb->init_data = event_init_data;
return TRUE;
}
/* --------------------------------------------------------------------------------------------- */
void
mc_event_del (const gchar * event_group_name, const gchar * event_name,
mc_event_callback_func_t event_callback, gpointer event_init_data)
{
GTree *event_group;
GPtrArray *callbacks;
mc_event_callback_t *cb;
if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL
|| event_callback == NULL)
return;
event_group = mc_event_get_event_group_by_name (event_group_name, FALSE, NULL);
if (event_group == NULL)
return;
callbacks = mc_event_get_event_by_name (event_group, event_name, FALSE, NULL);
if (callbacks == NULL)
return;
cb = mc_event_is_callback_in_array (callbacks, event_callback, event_init_data);
if (cb != NULL)
g_ptr_array_remove (callbacks, (gpointer) cb);
}
/* --------------------------------------------------------------------------------------------- */
void
mc_event_destroy (const gchar * event_group_name, const gchar * event_name)
{
GTree *event_group;
if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL)
return;
event_group = mc_event_get_event_group_by_name (event_group_name, FALSE, NULL);
g_tree_remove (event_group, (gconstpointer) event_name);
}
/* --------------------------------------------------------------------------------------------- */
void
mc_event_group_del (const gchar * event_group_name)
{
if (mc_event_grouplist != NULL && event_group_name != NULL)
g_tree_remove (mc_event_grouplist, (gconstpointer) event_group_name);
}
/* --------------------------------------------------------------------------------------------- */
GTree *
mc_event_get_event_group_by_name (const gchar * event_group_name, gboolean create_new,
GError ** mcerror)
{
GTree *event_group;
mc_return_val_if_error (mcerror, FALSE);
event_group = (GTree *) g_tree_lookup (mc_event_grouplist, (gconstpointer) event_group_name);
if (event_group == NULL && create_new)
{
event_group =
g_tree_new_full ((GCompareDataFunc) g_ascii_strcasecmp,
NULL,
(GDestroyNotify) g_free,
(GDestroyNotify) mc_event_group_destroy_value);
if (event_group == NULL)
{
mc_propagate_error (mcerror, 0, _("Unable to create group '%s' for events!"),
event_group_name);
return NULL;
}
g_tree_insert (mc_event_grouplist, g_strdup (event_group_name), (gpointer) event_group);
}
return event_group;
}
/* --------------------------------------------------------------------------------------------- */
GPtrArray *
mc_event_get_event_by_name (GTree * event_group, const gchar * event_name, gboolean create_new,
GError ** mcerror)
{
GPtrArray *callbacks;
mc_return_val_if_error (mcerror, FALSE);
callbacks = (GPtrArray *) g_tree_lookup (event_group, (gconstpointer) event_name);
if (callbacks == NULL && create_new)
{
callbacks = g_ptr_array_new_with_free_func (g_free);
if (callbacks == NULL)
{
mc_propagate_error (mcerror, 0, _("Unable to create event '%s'!"), event_name);
return NULL;
}
g_tree_insert (event_group, g_strdup (event_name), (gpointer) callbacks);
}
return callbacks;
}
/* --------------------------------------------------------------------------------------------- */
mc_event_callback_t *
mc_event_is_callback_in_array (GPtrArray * callbacks, mc_event_callback_func_t event_callback,
gpointer event_init_data)
{
guint array_index;
for (array_index = 0; array_index < callbacks->len; array_index++)
{
mc_event_callback_t *cb = g_ptr_array_index (callbacks, array_index);
if (cb->callback == event_callback && cb->init_data == event_init_data)
return cb;
}
return NULL;
}
/* --------------------------------------------------------------------------------------------- */
|
