Repository navigation
Expand file tree
/
Copy pathxutil.c
More file actions
220 lines (197 loc) · 7.07 KB
/
Copy pathxutil.c
File metadata and controls
220 lines (197 loc) · 7.07 KB
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
217
218
219
220
/*
* common/xutil.c - X-related useful functions
*
* Copyright © 2007-2009 Julien Danjou <julien@danjou.info>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
/* XCB doesn't provide keysyms definition */
#include <X11/keysym.h>
#include "common/util.h"
#include <xcb/xcb.h>
#include <xcb/xcb_atom.h>
#include <xcb/xcb_icccm.h>
#include "common/xutil.h"
#include "common/atoms.h"
#include "common/tokenize.h"
/** Get the string value of an atom.
* \param conn X connection.
* \param w Window.
* \param atom The atom.
* \param text Buffer to fill.
* \param len Length of the filled buffer.
* \return True on sucess, false on failure.
*/
bool
xutil_text_prop_get(xcb_connection_t *conn, xcb_window_t w, xcb_atom_t atom,
char **text, ssize_t *len)
{
xcb_get_text_property_reply_t reply;
p_clear(&reply, 1);
if(!xcb_get_text_property_reply(conn,
xcb_get_text_property_unchecked(conn, w,
atom),
&reply, NULL) ||
!reply.name_len || reply.format != 8)
{
xcb_get_text_property_reply_wipe(&reply);
return false;
}
if(text && len)
{
/* Check whether the returned property value is just an ascii
* string, an UTF-8 string or just some random multibyte in any other
* encoding. */
if(reply.encoding == STRING
|| reply.encoding == UTF8_STRING
|| reply.encoding == COMPOUND_TEXT)
{
*text = p_new(char, reply.name_len + 1);
/* Use memcpy() because the property name is not be \0
* terminated */
memcpy(*text, reply.name, reply.name_len);
(*text)[reply.name_len] = '\0';
*len = reply.name_len;
}
else
{
*text = NULL;
*len = 0;
}
}
xcb_get_text_property_reply_wipe(&reply);
return true;
}
/** Get the lock masks (shiftlock, numlock, capslock, modeswitch).
* \param connection The X connection.
* \param cookie The cookie of the request.
* \param keysyms Key symbols.
* \param numlockmask Numlock mask.
* \param shiftlockmask Shiftlock mask.
* \param capslockmask Capslock mask.
* \todo Split this.
*/
void
xutil_lock_mask_get(xcb_connection_t *connection,
xcb_get_modifier_mapping_cookie_t cookie,
xcb_key_symbols_t *keysyms,
uint16_t *numlockmask,
uint16_t *shiftlockmask,
uint16_t *capslockmask,
uint16_t *modeswitchmask)
{
xcb_get_modifier_mapping_reply_t *modmap_r;
xcb_keycode_t *modmap, kc;
xcb_keycode_t *numlockcodes = xcb_key_symbols_get_keycode(keysyms, XK_Num_Lock);
xcb_keycode_t *shiftlockcodes = xcb_key_symbols_get_keycode(keysyms, XK_Shift_Lock);
xcb_keycode_t *capslockcodes = xcb_key_symbols_get_keycode(keysyms, XK_Caps_Lock);
xcb_keycode_t *modeswitchcodes = xcb_key_symbols_get_keycode(keysyms, XK_Mode_switch);
modmap_r = xcb_get_modifier_mapping_reply(connection, cookie, NULL);
modmap = xcb_get_modifier_mapping_keycodes(modmap_r);
/* reset */
*numlockmask = *shiftlockmask = *capslockmask = *modeswitchmask = 0;
int i;
for(i = 0; i < 8; i++)
for(int j = 0; j < modmap_r->keycodes_per_modifier; j++)
{
kc = modmap[i * modmap_r->keycodes_per_modifier + j];
#define LOOK_FOR(mask, codes) \
if(*mask == 0 && codes) \
for(xcb_keycode_t *ktest = codes; *ktest; ktest++) \
if(*ktest == kc) \
{ \
*mask = (1 << i); \
break; \
}
LOOK_FOR(numlockmask, numlockcodes)
LOOK_FOR(shiftlockmask, shiftlockcodes)
LOOK_FOR(capslockmask, capslockcodes)
LOOK_FOR(modeswitchmask, modeswitchcodes)
#undef LOOK_FOR
}
p_delete(&numlockcodes);
p_delete(&shiftlockcodes);
p_delete(&capslockcodes);
p_delete(&modeswitchcodes);
p_delete(&modmap_r);
}
/* Number of different errors */
#define ERRORS_NBR 256
void
xutil_error_handler_catch_all_set(xcb_event_handlers_t *evenths,
xcb_generic_error_handler_t handler,
void *data)
{
int err_num;
for(err_num = 0; err_num < ERRORS_NBR; err_num++)
xcb_event_set_error_handler(evenths, err_num, handler, data);
}
uint16_t
xutil_key_mask_fromstr(const char *keyname, size_t len)
{
switch(a_tokenize(keyname, len))
{
case A_TK_SHIFT: return XCB_MOD_MASK_SHIFT;
case A_TK_LOCK: return XCB_MOD_MASK_LOCK;
case A_TK_CTRL:
case A_TK_CONTROL: return XCB_MOD_MASK_CONTROL;
case A_TK_MOD1: return XCB_MOD_MASK_1;
case A_TK_MOD2: return XCB_MOD_MASK_2;
case A_TK_MOD3: return XCB_MOD_MASK_3;
case A_TK_MOD4: return XCB_MOD_MASK_4;
case A_TK_MOD5: return XCB_MOD_MASK_5;
/* this is misnamed but correct */
case A_TK_ANY: return XCB_BUTTON_MASK_ANY;
default: return XCB_NO_SYMBOL;
}
}
void
xutil_key_mask_tostr(uint16_t mask, const char **name, size_t *len)
{
switch(mask)
{
#define SET_RESULT(res) \
*name = #res; \
*len = sizeof(#res) - 1; \
return;
case XCB_MOD_MASK_SHIFT: SET_RESULT(Shift)
case XCB_MOD_MASK_LOCK: SET_RESULT(Lock)
case XCB_MOD_MASK_CONTROL: SET_RESULT(Control)
case XCB_MOD_MASK_1: SET_RESULT(Mod1)
case XCB_MOD_MASK_2: SET_RESULT(Mod2)
case XCB_MOD_MASK_3: SET_RESULT(Mod3)
case XCB_MOD_MASK_4: SET_RESULT(Mod4)
case XCB_MOD_MASK_5: SET_RESULT(Mod5)
case XCB_BUTTON_MASK_ANY: SET_RESULT(Any)
default: SET_RESULT(Unknown)
#undef SET_RESULT
}
}
/** Convert a root window a physical screen ID.
* \param connection The connection to the X server.
* \param root Root window.
* \return A physical screen number.
*/
int
xutil_root2screen(xcb_connection_t *connection, xcb_window_t root)
{
xcb_screen_iterator_t iter;
int phys_screen = 0;
for(iter = xcb_setup_roots_iterator(xcb_get_setup(connection));
iter.rem && iter.data->root != root; xcb_screen_next(&iter), ++phys_screen);
return phys_screen;
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80