-/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
-
- modkeys.c for the Openbox window manager
- Copyright (c) 2007 Dana Jansens
-
- 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.
-
- See the COPYING file for a copy of the GNU General Public License.
-*/
-
-#include "modkeys.h"
-#include "openbox.h"
-
-#include <X11/Xlib.h>
-#include <X11/keysym.h>
-
-/* These masks are constants and the modifier keys are bound to them as
- anyone sees fit:
- ShiftMask (1<<0), LockMask (1<<1), ControlMask (1<<2), Mod1Mask (1<<3),
- Mod2Mask (1<<4), Mod3Mask (1<<5), Mod4Mask (1<<6), Mod5Mask (1<<7)
-*/
-#define NUM_MASKS 8
-#define ALL_MASKS 0xff /* an or'ing of all 8 keyboard masks */
-
-/* Get the bitflag for the n'th modifier mask */
-#define nth_mask(n) (1 << n)
-
-static void set_modkey_mask(guchar mask, KeySym sym);
-
-static XModifierKeymap *modmap;
-static KeySym *keymap;
-static gint min_keycode, max_keycode, keysyms_per_keycode;
-/* This is a bitmask of the different masks for each modifier key */
-static guchar modkeys_keys[OB_MODKEY_NUM_KEYS];
-
-static gboolean alt_l = FALSE;
-static gboolean meta_l = FALSE;
-static gboolean super_l = FALSE;
-static gboolean hyper_l = FALSE;
-
-void modkeys_startup(gboolean reconfigure)
-{
- gint i, j, k;
-
- /* reset the keys to not be bound to any masks */
- for (i = 0; i < OB_MODKEY_NUM_KEYS; ++i)
- modkeys_keys[i] = 0;
-
- modmap = XGetModifierMapping(obt_display);
- g_assert(modmap->max_keypermod > 0);
-
- XDisplayKeycodes(obt_display, &min_keycode, &max_keycode);
- keymap = XGetKeyboardMapping(obt_display, min_keycode,
- max_keycode - min_keycode + 1,
- &keysyms_per_keycode);
-
- alt_l = meta_l = super_l = hyper_l = FALSE;
-
- /* go through each of the modifier masks (eg ShiftMask, CapsMask...) */
- for (i = 0; i < NUM_MASKS; ++i) {
- /* go through each keycode that is bound to the mask */
- for (j = 0; j < modmap->max_keypermod; ++j) {
- KeySym sym;
- /* get a keycode that is bound to the mask (i) */
- KeyCode keycode = modmap->modifiermap[i*modmap->max_keypermod + j];
- if (keycode) {
- /* go through each keysym bound to the given keycode */
- for (k = 0; k < keysyms_per_keycode; ++k) {
- sym = keymap[(keycode-min_keycode) * keysyms_per_keycode +
- k];
- if (sym != NoSymbol) {
- /* bind the key to the mask (e.g. Alt_L => Mod1Mask) */
- set_modkey_mask(nth_mask(i), sym);
- }
- }
- }
- }
- }
-
- /* CapsLock, Shift, and Control are special and hard-coded */
- modkeys_keys[OB_MODKEY_KEY_CAPSLOCK] = LockMask;
- modkeys_keys[OB_MODKEY_KEY_SHIFT] = ShiftMask;
- modkeys_keys[OB_MODKEY_KEY_CONTROL] = ControlMask;
-}
-
-void modkeys_shutdown(gboolean reconfigure)
-{
- XFreeModifiermap(modmap);
- XFree(keymap);
-}
-
-guint modkeys_keycode_to_mask(guint keycode)
-{
- gint i, j;
- guint mask = 0;
-
- if (keycode == NoSymbol) return 0;
-
- /* go through each of the modifier masks (eg ShiftMask, CapsMask...) */
- for (i = 0; i < NUM_MASKS; ++i) {
- /* go through each keycode that is bound to the mask */
- for (j = 0; j < modmap->max_keypermod; ++j) {
- /* compare with a keycode that is bound to the mask (i) */
- if (modmap->modifiermap[i*modmap->max_keypermod + j] == keycode)
- mask |= nth_mask(i);
- }
- }
- return mask;
-}
-
-guint modkeys_only_modifier_masks(guint mask)
-{
- mask &= ALL_MASKS;
- /* strip off these lock keys. they shouldn't affect key bindings */
- mask &= ~LockMask; /* use the LockMask, not what capslock is bound to,
- because you could bind it to something else and it
- should work as that modifier then. i think capslock
- is weird in xkb. */
- mask &= ~modkeys_key_to_mask(OB_MODKEY_KEY_NUMLOCK);
- mask &= ~modkeys_key_to_mask(OB_MODKEY_KEY_SCROLLLOCK);
- return mask;
-}
-
-guint modkeys_key_to_mask(ObModkeysKey key)
-{
- return modkeys_keys[key];
-}
-
-static void set_modkey_mask(guchar mask, KeySym sym)
-{
- /* find what key this is, and bind it to the mask */
-
- if (sym == XK_Num_Lock)
- modkeys_keys[OB_MODKEY_KEY_NUMLOCK] |= mask;
- else if (sym == XK_Scroll_Lock)
- modkeys_keys[OB_MODKEY_KEY_SCROLLLOCK] |= mask;
-
- else if (sym == XK_Super_L && super_l)
- modkeys_keys[OB_MODKEY_KEY_SUPER] |= mask;
- else if (sym == XK_Super_L && !super_l)
- /* left takes precident over right, so erase any masks the right
- key may have set */
- modkeys_keys[OB_MODKEY_KEY_SUPER] = mask, super_l = TRUE;
- else if (sym == XK_Super_R && !super_l)
- modkeys_keys[OB_MODKEY_KEY_SUPER] |= mask;
-
- else if (sym == XK_Hyper_L && hyper_l)
- modkeys_keys[OB_MODKEY_KEY_HYPER] |= mask;
- else if (sym == XK_Hyper_L && !hyper_l)
- modkeys_keys[OB_MODKEY_KEY_HYPER] = mask, hyper_l = TRUE;
- else if (sym == XK_Hyper_R && !hyper_l)
- modkeys_keys[OB_MODKEY_KEY_HYPER] |= mask;
-
- else if (sym == XK_Alt_L && alt_l)
- modkeys_keys[OB_MODKEY_KEY_ALT] |= mask;
- else if (sym == XK_Alt_L && !alt_l)
- modkeys_keys[OB_MODKEY_KEY_ALT] = mask, alt_l = TRUE;
- else if (sym == XK_Alt_R && !alt_l)
- modkeys_keys[OB_MODKEY_KEY_ALT] |= mask;
-
- else if (sym == XK_Meta_L && meta_l)
- modkeys_keys[OB_MODKEY_KEY_META] |= mask;
- else if (sym == XK_Meta_L && !meta_l)
- modkeys_keys[OB_MODKEY_KEY_META] = mask, meta_l = TRUE;
- else if (sym == XK_Meta_R && !meta_l)
- modkeys_keys[OB_MODKEY_KEY_META] |= mask;
-
- /* CapsLock, Shift, and Control are special and hard-coded */
-}
-
-KeyCode modkeys_sym_to_code(KeySym sym)
-{
- gint i, j;
-
- /* go through each keycode and look for the keysym */
- for (i = min_keycode; i <= max_keycode; ++i)
- for (j = 0; j < keysyms_per_keycode; ++j)
- if (sym == keymap[(i-min_keycode) * keysyms_per_keycode + j])
- return i;
- return 0;
-}
-