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Dogcows Code - chaz/openbox/blob - openbox/modkeys.c
1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
3 modkeys.c for the Openbox window manager
4 Copyright (c) 2007 Dana Jansens
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 See the COPYING file for a copy of the GNU General Public License.
23 #include <X11/keysym.h>
25 /* These masks are constants and the modifier keys are bound to them as
27 ShiftMask (1<<0), LockMask (1<<1), ControlMask (1<<2), Mod1Mask (1<<3),
28 Mod2Mask (1<<4), Mod3Mask (1<<5), Mod4Mask (1<<6), Mod5Mask (1<<7)
31 #define ALL_MASKS 0xff /* an or'ing of all 8 keyboard masks */
33 /* Get the bitflag for the n'th modifier mask */
34 #define nth_mask(n) (1 << n)
36 static void set_modkey_mask(guchar mask
, KeySym sym
);
38 static XModifierKeymap
*modmap
;
39 /* This is a bitmask of the different masks for each modifier key */
40 static guchar modkeys_keys
[OB_MODKEY_NUM_KEYS
];
42 void modkeys_startup(gboolean reconfigure
)
46 gint min_keycode
, max_keycode
, keysyms_per_keycode
;
48 /* reset the keys to not be bound to any masks */
49 for (i
= 0; i
< OB_MODKEY_NUM_KEYS
; ++i
)
52 modmap
= XGetModifierMapping(ob_display
);
53 g_assert(modmap
->max_keypermod
> 0);
55 XDisplayKeycodes(ob_display
, &min_keycode
, &max_keycode
);
56 keymap
= XGetKeyboardMapping(ob_display
, min_keycode
,
57 max_keycode
- min_keycode
+ 1,
58 &keysyms_per_keycode
);
60 /* go through each of the modifier masks (eg ShiftMask, CapsMask...) */
61 for (i
= 0; i
< NUM_MASKS
; ++i
) {
62 /* go through each keycode that is bound to the mask */
63 for (j
= 0; j
< modmap
->max_keypermod
; ++j
) {
65 /* get a keycode that is bound to the mask (i) */
66 KeyCode keycode
= modmap
->modifiermap
[i
*modmap
->max_keypermod
+ j
];
67 /* go through each keysym bound to the given keycode */
68 for (k
= 0; k
< keysyms_per_keycode
; ++k
) {
69 sym
= keymap
[(keycode
-min_keycode
) * keysyms_per_keycode
+ k
];
70 if (sym
!= NoSymbol
) {
71 /* bind the key to the mask (e.g. Alt_L => Mod1Mask) */
72 set_modkey_mask(nth_mask(i
), sym
);
80 void modkeys_shutdown(gboolean reconfigure
)
82 XFreeModifiermap(modmap
);
85 guint
modkeys_keycode_to_mask(guint keycode
)
90 if (keycode
== NoSymbol
) return 0;
92 /* go through each of the modifier masks (eg ShiftMask, CapsMask...) */
93 for (i
= 0; i
< NUM_MASKS
; ++i
) {
94 /* go through each keycode that is bound to the mask */
95 for (j
= 0; j
< modmap
->max_keypermod
; ++j
) {
96 /* compare with a keycode that is bound to the mask (i) */
97 if (modmap
->modifiermap
[i
*modmap
->max_keypermod
+ j
] == keycode
)
104 guint
modkeys_only_modifier_masks(guint mask
)
107 /* strip off these lock keys. they shouldn't affect key bindings */
108 mask
&= ~modkeys_key_to_mask(OB_MODKEY_KEY_CAPSLOCK
);
109 mask
&= ~modkeys_key_to_mask(OB_MODKEY_KEY_NUMLOCK
);
110 mask
&= ~modkeys_key_to_mask(OB_MODKEY_KEY_SCROLLLOCK
);
114 guint
modkeys_key_to_mask(ObModkeysKey key
)
116 return modkeys_keys
[key
];
119 static void set_modkey_mask(guchar mask
, KeySym sym
)
121 /* find what key this is, and bind it to the mask */
123 if (sym
== XK_Num_Lock
)
124 modkeys_keys
[OB_MODKEY_KEY_NUMLOCK
] |= mask
;
125 else if (sym
== XK_Scroll_Lock
)
126 modkeys_keys
[OB_MODKEY_KEY_SCROLLLOCK
] |= mask
;
127 else if (sym
== XK_Caps_Lock
)
128 modkeys_keys
[OB_MODKEY_KEY_CAPSLOCK
] |= mask
;
129 else if (sym
== XK_Shift_L
|| sym
== XK_Shift_R
)
130 modkeys_keys
[OB_MODKEY_KEY_SHIFT
] |= mask
;
131 else if (sym
== XK_Control_L
|| sym
== XK_Control_R
)
132 modkeys_keys
[OB_MODKEY_KEY_CONTROL
] |= mask
;
133 else if (sym
== XK_Super_L
|| sym
== XK_Super_R
)
134 modkeys_keys
[OB_MODKEY_KEY_SUPER
] |= mask
;
135 else if (sym
== XK_Hyper_L
|| sym
== XK_Hyper_R
)
136 modkeys_keys
[OB_MODKEY_KEY_HYPER
] |= mask
;
137 else if (sym
== XK_Alt_L
|| sym
== XK_Alt_R
)
138 modkeys_keys
[OB_MODKEY_KEY_ALT
] |= mask
;
139 else if (sym
== XK_Meta_L
|| sym
== XK_Meta_R
)
140 modkeys_keys
[OB_MODKEY_KEY_META
] |= mask
;
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