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.
24 /* These masks are constants and the modifier keys are bound to them as
26 ShiftMask (1<<0), LockMask (1<<1), ControlMask (1<<2), Mod1Mask (1<<3),
27 Mod2Mask (1<<4), Mod3Mask (1<<5), Mod4Mask (1<<6), Mod5Mask (1<<7)
30 #define ALL_MASKS 0xff /* an or'ing of all 8 keyboard masks */
32 /* Get the bitflag for the n'th modifier mask */
33 #define nth_mask(n) (1 << n)
35 static void set_modkey_mask(guchar mask, KeySym sym);
37 static XModifierKeymap *modmap;
38 /* This is a bitmask of the different masks for each modifier key */
39 static guchar modkeys_keys[OB_MODKEY_NUM_KEYS];
41 void modkeys_startup(gboolean reconfigure)
45 gint min_keycode, max_keycode, keysyms_per_keycode;
47 /* reset the keys to not be bound to any masks */
48 for (i = 0; i < OB_MODKEY_NUM_KEYS; ++i)
51 modmap = XGetModifierMapping(ob_display);
52 g_assert(modmap->max_keypermod > 0);
54 XDisplayKeycodes(ob_display, &min_keycode, &max_keycode);
55 keymap = XGetKeyboardMapping(ob_display, min_keycode,
56 max_keycode - min_keycode + 1,
57 &keysyms_per_keycode);
59 /* go through each of the modifier masks (eg ShiftMask, CapsMask...) */
60 for (i = 0; i < NUM_MASKS; ++i) {
61 /* go through each keycode that is bound to the mask */
62 for (j = 0; j < modmap->max_keypermod; ++j) {
64 /* get a keycode that is bound to the mask (i) */
65 KeyCode keycode = modmap->modifiermap[i*modmap->max_keypermod + j];
66 /* go through each keysym bound to the given keycode */
67 for (k = 0; k < keysyms_per_keycode; ++k) {
68 sym = keymap[(keycode-min_keycode) * keysyms_per_keycode + k];
69 if (sym != NoSymbol) {
70 /* bind the key to the mask (e.g. Alt_L => Mod1Mask) */
71 set_modkey_mask(nth_mask(i), sym);
79 void modkeys_shutdown(gboolean reconfigure)
81 XFreeModifiermap(modmap);
84 guint modkeys_keycode_to_mask(guint keycode)
89 if (keycode == NoSymbol) return 0;
91 /* go through each of the modifier masks (eg ShiftMask, CapsMask...) */
92 for (i = 0; i < NUM_MASKS; ++i) {
93 /* go through each keycode that is bound to the mask */
94 for (j = 0; j < modmap->max_keypermod; ++j) {
95 /* compare with a keycode that is bound to the mask (i) */
96 if (modmap->modifiermap[i*modmap->max_keypermod + j] == keycode)
103 guint modkeys_only_modifier_masks(guint mask)
106 /* strip off these lock keys. they shouldn't affect key bindings */
107 mask &= ~modkeys_key_to_mask(OB_MODKEY_KEY_CAPSLOCK);
108 mask &= ~modkeys_key_to_mask(OB_MODKEY_KEY_NUMLOCK);
109 mask &= ~modkeys_key_to_mask(OB_MODKEY_KEY_SCROLLLOCK);
113 guint modkeys_key_to_mask(ObModkeysKey key)
115 return modkeys_keys[key];
118 static void set_modkey_mask(guchar mask, KeySym sym)
120 /* find what key this is, and bind it to the mask */
122 if (sym == XK_Num_Lock)
123 modkeys_keys[OB_MODKEY_KEY_NUMLOCK] |= mask;
124 else if (sym == XK_Scroll_Lock)
125 modkeys_keys[OB_MODKEY_KEY_SCROLLLOCK] |= mask;
126 else if (sym == XK_Caps_Lock)
127 modkeys_keys[OB_MODKEY_KEY_CAPSLOCK] |= mask;
128 else if (sym == XK_Shift_L || sym == XK_Shift_R)
129 modkeys_keys[OB_MODKEY_KEY_SHIFT] |= mask;
130 else if (sym == XK_Control_L || sym == XK_Control_R)
131 modkeys_keys[OB_MODKEY_KEY_CONTROL] |= mask;
132 else if (sym == XK_Super_L || sym == XK_Super_R)
133 modkeys_keys[OB_MODKEY_KEY_SUPER] |= mask;
134 else if (sym == XK_Hyper_L || sym == XK_Hyper_R)
135 modkeys_keys[OB_MODKEY_KEY_HYPER] |= mask;
136 else if (sym == XK_Alt_L || sym == XK_Alt_R)
137 modkeys_keys[OB_MODKEY_KEY_ALT] |= mask;
138 else if (sym == XK_Meta_L || sym == XK_Meta_R)
139 modkeys_keys[OB_MODKEY_KEY_META] |= mask;