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
|
/*
* Copyright (C) 2008 Julien Danjou <julien@danjou.info>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the names of the authors or
* their institutions shall not be used in advertising or otherwise to
* promote the sale, use or other dealings in this Software without
* prior written authorization from the authors.
*/
#include <stdlib.h>
#include <string.h>
#include "xcb_property.h"
xcb_get_property_cookie_t
xcb_get_any_property(xcb_connection_t *c, uint8_t del, xcb_window_t window, xcb_atom_t name, uint32_t long_len)
{
static const xcb_atom_t type = XCB_GET_PROPERTY_TYPE_ANY;
return xcb_get_property(c, del, window, name, type, 0, long_len);
}
xcb_get_property_cookie_t
xcb_get_any_property_unchecked(xcb_connection_t *c,
uint8_t del,
xcb_window_t window,
xcb_atom_t name,
uint32_t long_len)
{
return xcb_get_property_unchecked(c, del, window, name, XCB_GET_PROPERTY_TYPE_ANY, 0, long_len);
}
static int
call_handler(xcb_connection_t *c, uint8_t state, xcb_window_t window, xcb_atom_t atom, xcb_property_handler_t *h)
{
xcb_get_property_reply_t *propr = 0;
int ret;
if(state != XCB_PROPERTY_DELETE)
{
xcb_get_property_cookie_t cookie = xcb_get_any_property(c, 0, window, atom, h->long_len);
propr = xcb_get_property_reply(c, cookie, 0);
}
ret = h->handler(h->data, c, state, window, atom, propr);
free(propr);
return ret;
}
int
xcb_property_changed(xcb_property_handlers_t *prophs, uint8_t state, xcb_window_t window, xcb_atom_t atom)
{
xcb_connection_t *c = xcb_event_get_xcb_connection(xcb_property_get_event_handlers(prophs));
xcb_property_handler_node_t *cur;
for(cur = prophs->head; cur; cur = cur->next)
if(cur->name == atom)
return call_handler(c, state, window, atom, &cur->h);
if(prophs->def.handler)
return call_handler(c, state, window, atom, &prophs->def);
return 0;
}
static int
handle_property_notify_event(void *data, xcb_connection_t *c, xcb_property_notify_event_t *e)
{
xcb_property_handlers_t *prophs = data;
uint8_t state = e->state;
xcb_window_t window = e->window;
xcb_atom_t atom = e->atom;
return xcb_property_changed(prophs, state, window, atom);
}
void
xcb_property_handlers_init(xcb_property_handlers_t *prophs, xcb_event_handlers_t *evenths)
{
memset(prophs, 0, sizeof(prophs));
prophs->evenths = evenths;
xcb_event_set_property_notify_handler(evenths, handle_property_notify_event, prophs);
}
void
xcb_property_handlers_wipe(xcb_property_handlers_t *prophs)
{
xcb_property_handler_node_t *node, *next;
for(node = prophs->head; node; node = next)
{
next = node->next;
free(node);
}
}
xcb_event_handlers_t *
xcb_property_get_event_handlers(xcb_property_handlers_t *prophs)
{
return prophs->evenths;
}
static inline void
set_prop_handler(xcb_property_handler_t *cur, uint32_t long_len, xcb_generic_property_handler_t handler, void *data)
{
cur->long_len = long_len;
cur->handler = handler;
cur->data = data;
}
uint8_t
xcb_property_set_handler(xcb_property_handlers_t *prophs, xcb_atom_t name, uint32_t long_len, xcb_generic_property_handler_t handler, void *data)
{
xcb_property_handler_node_t *cur = malloc(sizeof(xcb_property_handler_node_t));
if(!cur)
return 0;
cur->next = prophs->head;
cur->name = name;
set_prop_handler(&cur->h, long_len, handler, data);
prophs->head = cur;
return 1;
}
uint8_t
xcb_property_set_default_handler(xcb_property_handlers_t *prophs, uint32_t long_len, xcb_generic_property_handler_t handler, void *data)
{
set_prop_handler(&prophs->def, long_len, handler, data);
return 1;
}
|
