-static void grab_keycode_for_binding(xcb_connection_t *conn, Binding *bind, uint32_t keycode) {
- DLOG("Grabbing %d with modifiers %d (with mod_mask_lock %d)\n", keycode, bind->mods, bind->mods | XCB_MOD_MASK_LOCK);
- /* Grab the key in all combinations */
- #define GRAB_KEY(modifier) \
- do { \
- xcb_grab_key(conn, 0, root, modifier, keycode, \
- XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC); \
- } while (0)
- int mods = bind->mods;
- if ((bind->mods & BIND_MODE_SWITCH) != 0) {
- mods &= ~BIND_MODE_SWITCH;
- if (mods == 0)
- mods = XCB_MOD_MASK_ANY;
- }
- GRAB_KEY(mods);
- GRAB_KEY(mods | xcb_numlock_mask);
- GRAB_KEY(mods | XCB_MOD_MASK_LOCK);
- GRAB_KEY(mods | xcb_numlock_mask | XCB_MOD_MASK_LOCK);
-}
-
-/*
- * Returns a pointer to the Binding with the specified modifiers and keycode
- * or NULL if no such binding exists.
- *
- */
-Binding *get_binding(uint16_t modifiers, bool key_release, xcb_keycode_t keycode) {
- Binding *bind;
-
- if (!key_release) {
- /* On a KeyPress event, we first reset all
- * B_UPON_KEYRELEASE_IGNORE_MODS bindings back to B_UPON_KEYRELEASE */
- TAILQ_FOREACH(bind, bindings, bindings) {
- if (bind->release == B_UPON_KEYRELEASE_IGNORE_MODS)
- bind->release = B_UPON_KEYRELEASE;
- }
- }
-
- TAILQ_FOREACH(bind, bindings, bindings) {
- /* First compare the modifiers (unless this is a
- * B_UPON_KEYRELEASE_IGNORE_MODS binding and this is a KeyRelease
- * event) */
- if (bind->mods != modifiers &&
- (bind->release != B_UPON_KEYRELEASE_IGNORE_MODS ||
- !key_release))
- continue;
-
- /* If a symbol was specified by the user, we need to look in
- * the array of translated keycodes for the event’s keycode */
- if (bind->symbol != NULL) {
- if (memmem(bind->translated_to,
- bind->number_keycodes * sizeof(xcb_keycode_t),
- &keycode, sizeof(xcb_keycode_t)) == NULL)
- continue;
- } else {
- /* This case is easier: The user specified a keycode */
- if (bind->keycode != keycode)
- continue;
- }
-
- /* If this keybinding is a KeyRelease binding, it matches the key which
- * the user pressed. We therefore mark it as
- * B_UPON_KEYRELEASE_IGNORE_MODS for later, so that the user can
- * release the modifiers before the actual key and the KeyRelease will
- * still be matched. */
- if (bind->release == B_UPON_KEYRELEASE && !key_release)
- bind->release = B_UPON_KEYRELEASE_IGNORE_MODS;
-
- /* Check if the binding is for a KeyPress or a KeyRelease event */
- if ((bind->release == B_UPON_KEYPRESS && key_release) ||
- (bind->release >= B_UPON_KEYRELEASE && !key_release))
- continue;
-
- break;
- }
-
- return (bind == TAILQ_END(bindings) ? NULL : bind);
-}
-
-/*
- * Translates keysymbols to keycodes for all bindings which use keysyms.
- *
- */
-void translate_keysyms(void) {
- Binding *bind;
- xcb_keysym_t keysym;
- int col;
- xcb_keycode_t i,
- min_keycode = xcb_get_setup(conn)->min_keycode,
- max_keycode = xcb_get_setup(conn)->max_keycode;
-
- TAILQ_FOREACH(bind, bindings, bindings) {
- if (bind->keycode > 0)
- continue;
-
- /* We need to translate the symbol to a keycode */
- keysym = XStringToKeysym(bind->symbol);
- if (keysym == NoSymbol) {
- ELOG("Could not translate string to key symbol: \"%s\"\n",
- bind->symbol);
- continue;
- }
-
- /* Base column we use for looking up key symbols. We always consider
- * the base column and the corresponding shift column, so without
- * mode_switch, we look in 0 and 1, with mode_switch we look in 2 and
- * 3. */
- col = (bind->mods & BIND_MODE_SWITCH ? 2 : 0);
-
- FREE(bind->translated_to);
- bind->number_keycodes = 0;
-
- for (i = min_keycode; i && i <= max_keycode; i++) {
- if ((xcb_key_symbols_get_keysym(keysyms, i, col) != keysym) &&
- (xcb_key_symbols_get_keysym(keysyms, i, col+1) != keysym))
- continue;
- bind->number_keycodes++;
- bind->translated_to = srealloc(bind->translated_to,
- (sizeof(xcb_keycode_t) *
- bind->number_keycodes));
- bind->translated_to[bind->number_keycodes-1] = i;
- }
-
- DLOG("Translated symbol \"%s\" to %d keycode\n", bind->symbol,
- bind->number_keycodes);
- }
-}
-
-/*
- * Grab the bound keys (tell X to send us keypress events for those keycodes)
- *
- */
-void grab_all_keys(xcb_connection_t *conn, bool bind_mode_switch) {
- Binding *bind;
- TAILQ_FOREACH(bind, bindings, bindings) {
- if ((bind_mode_switch && (bind->mods & BIND_MODE_SWITCH) == 0) ||
- (!bind_mode_switch && (bind->mods & BIND_MODE_SWITCH) != 0))
- continue;
-
- /* The easy case: the user specified a keycode directly. */
- if (bind->keycode > 0) {
- grab_keycode_for_binding(conn, bind, bind->keycode);
- continue;
- }
-
- xcb_keycode_t *walk = bind->translated_to;
- for (int i = 0; i < bind->number_keycodes; i++)
- grab_keycode_for_binding(conn, bind, *walk++);
- }
-}
-
-/*
- * Switches the key bindings to the given mode, if the mode exists
- *
- */
-void switch_mode(const char *new_mode) {
- struct Mode *mode;
-
- LOG("Switching to mode %s\n", new_mode);
-
- SLIST_FOREACH(mode, &modes, modes) {
- if (strcasecmp(mode->name, new_mode) != 0)
- continue;
-
- ungrab_all_keys(conn);
- bindings = mode->bindings;
- translate_keysyms();
- grab_all_keys(conn, false);
-
- char *event_msg;
- sasprintf(&event_msg, "{\"change\":\"%s\"}", mode->name);
-
- ipc_send_event("mode", I3_IPC_EVENT_MODE, event_msg);
- FREE(event_msg);
-
- return;
- }
-
- ELOG("ERROR: Mode not found\n");
-}
-