chord_t *make_chord(xcb_keysym_t keysym, xcb_button_t button, uint16_t modfield, uint8_t event_type, bool replay_event, bool lock_chain)
{
chord_t *chord;
if (button == XCB_NONE) {
chord_t *prev = NULL;
chord_t *orig = NULL;
xcb_keycode_t *keycodes = keycodes_from_keysym(keysym);
if (keycodes != NULL)
for (xcb_keycode_t *kc = keycodes; *kc != XCB_NO_SYMBOL; kc++) {
xcb_keysym_t natural_keysym = xcb_key_symbols_get_keysym(symbols, *kc, 0);
for (unsigned char col = 0; col < KEYSYMS_PER_KEYCODE; col++) {
xcb_keysym_t ks = xcb_key_symbols_get_keysym(symbols, *kc, col);
if (ks == keysym) {
uint16_t implicit_modfield = (col & 1 ? XCB_MOD_MASK_SHIFT : 0) | (col & 2 ? modfield_from_keysym(Mode_switch) : 0);
uint16_t explicit_modfield = modfield | implicit_modfield;
chord = malloc(sizeof(chord_t));
bool unique = true;
for (chord_t *c = orig; unique && c != NULL; c = c->more)
if (c->modfield == explicit_modfield && c->keysym == natural_keysym)
unique = false;
if (!unique) {
free(chord);
break;
}
chord->keysym = natural_keysym;
chord->button = button;
chord->modfield = explicit_modfield;
chord->next = chord->more = NULL;
chord->event_type = event_type;
chord->replay_event = replay_event;
chord->lock_chain = lock_chain;
if (prev != NULL)
prev->more = chord;
else
orig = chord;
prev = chord;
PRINTF("key chord %u %u\n", natural_keysym, explicit_modfield);
break;
}
}
}
free(keycodes);
chord = orig;
} else {
chord = malloc(sizeof(chord_t));
chord->keysym = keysym;
chord->button = button;
chord->modfield = modfield;
chord->event_type = event_type;
chord->replay_event = replay_event;
chord->lock_chain = lock_chain;
chord->next = chord->more = NULL;
PRINTF("button chord %u %u\n", button, modfield);
}
return chord;
}
void grab_chord(chord_t *chord)
{
for (chord_t *c = chord; c != NULL; c = c->more) {
if (c->button == XCB_NONE) {
xcb_keycode_t *keycodes = keycodes_from_keysym(c->keysym);
if (keycodes != NULL)
for (xcb_keycode_t *kc = keycodes; *kc != XCB_NO_SYMBOL; kc++)
if (c->keysym == xcb_key_symbols_get_keysym(symbols, *kc, 0))
grab_key_button(*kc, c->button, c->modfield);
free(keycodes);
} else {
grab_key_button(XCB_NONE, c->button, c->modfield);
}
}
}
