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#ifdef __linux__
#include <linux/input-event-codes.h>
#elif __FreeBSD__
#include <dev/evdev/input-event-codes.h>
#endif
#include <xkbcommon/xkbcommon.h>
#include <xkbcommon/xkbcommon-names.h>
#include <strings.h>
#include "sway/commands.h"
#include "sway/config.h"
#include "list.h"
#include "log.h"
#include "stringop.h"
#include "util.h"
int binding_order = 0;
void free_sway_binding(struct sway_binding *binding) {
if (!binding) {
return;
}
if (binding->keys) {
free_flat_list(binding->keys);
}
free(binding->command);
free(binding);
}
/**
* Returns true if the bindings have the same key and modifier combinations.
* Note that keyboard layout is not considered, so the bindings might actually
* not be equivalent on some layouts.
*/
static bool binding_key_compare(struct sway_binding *binding_a,
struct sway_binding *binding_b) {
if (binding_a->release != binding_b->release) {
return false;
}
if (binding_a->bindcode != binding_b->bindcode) {
return false;
}
if (binding_a->modifiers ^ binding_b->modifiers) {
return false;
}
if (binding_a->keys->length != binding_b->keys->length) {
return false;
}
// Keys are sorted
int keys_len = binding_a->keys->length;
for (int i = 0; i < keys_len; ++i) {
uint32_t key_a = *(uint32_t *)binding_a->keys->items[i];
uint32_t key_b = *(uint32_t *)binding_b->keys->items[i];
if (key_a != key_b) {
return false;
}
}
return true;
}
static int key_qsort_cmp(const void *keyp_a, const void *keyp_b) {
uint32_t key_a = **(uint32_t **)keyp_a;
uint32_t key_b = **(uint32_t **)keyp_b;
return (key_a < key_b) ? -1 : ((key_a > key_b) ? 1 : 0);
}
static struct cmd_results *cmd_bindsym_or_bindcode(int argc, char **argv,
bool bindcode) {
const char *bindtype = bindcode ? "bindcode" : "bindsym";
struct cmd_results *error = NULL;
if ((error = checkarg(argc, bindtype, EXPECTED_MORE_THAN, 1))) {
return error;
}
struct sway_binding *binding = calloc(1, sizeof(struct sway_binding));
if (!binding) {
return cmd_results_new(CMD_FAILURE, bindtype,
"Unable to allocate binding");
}
binding->keys = create_list();
binding->modifiers = 0;
binding->release = false;
binding->locked = false;
binding->bindcode = bindcode;
// Handle --release and --locked
while (argc > 0) {
if (strcmp("--release", argv[0]) == 0) {
binding->release = true;
} else if (strcmp("--locked", argv[0]) == 0) {
binding->locked = true;
} else {
break;
}
argv++;
argc--;
}
if (argc < 2) {
free_sway_binding(binding);
return cmd_results_new(CMD_FAILURE, bindtype,
"Invalid %s command "
"(expected at least 2 non-option arguments, got %d)", bindtype, argc);
}
binding->command = join_args(argv + 1, argc - 1);
list_t *split = split_string(argv[0], "+");
for (int i = 0; i < split->length; ++i) {
// Check for a modifier key
uint32_t mod;
if ((mod = get_modifier_mask_by_name(split->items[i])) > 0) {
binding->modifiers |= mod;
continue;
}
xkb_keycode_t keycode;
xkb_keysym_t keysym;
if (bindcode) {
// parse keycode
keycode = (int)strtol(split->items[i], NULL, 10);
if (!xkb_keycode_is_legal_ext(keycode)) {
error =
cmd_results_new(CMD_INVALID, "bindcode",
"Invalid keycode '%s'", (char *)split->items[i]);
free_sway_binding(binding);
list_free(split);
return error;
}
} else {
// Check for xkb key
keysym = xkb_keysym_from_name(split->items[i],
XKB_KEYSYM_CASE_INSENSITIVE);
// Check for mouse binding
if (strncasecmp(split->items[i], "button", strlen("button")) == 0 &&
strlen(split->items[i]) == strlen("button0")) {
keysym = ((char *)split->items[i])[strlen("button")] - '1' + BTN_LEFT;
}
if (!keysym) {
struct cmd_results *ret = cmd_results_new(CMD_INVALID, "bindsym",
"Unknown key '%s'", (char *)split->items[i]);
free_sway_binding(binding);
free_flat_list(split);
return ret;
}
}
uint32_t *key = calloc(1, sizeof(uint32_t));
if (!key) {
free_sway_binding(binding);
free_flat_list(split);
return cmd_results_new(CMD_FAILURE, bindtype,
"Unable to allocate binding");
}
if (bindcode) {
*key = (uint32_t)keycode;
} else {
*key = (uint32_t)keysym;
}
list_add(binding->keys, key);
}
free_flat_list(split);
binding->order = binding_order++;
// sort ascending
list_qsort(binding->keys, key_qsort_cmp);
list_t *mode_bindings;
if (bindcode) {
mode_bindings = config->current_mode->keycode_bindings;
} else {
mode_bindings = config->current_mode->keysym_bindings;
}
// overwrite the binding if it already exists
bool overwritten = false;
for (int i = 0; i < mode_bindings->length; ++i) {
struct sway_binding *config_binding = mode_bindings->items[i];
if (binding_key_compare(binding, config_binding)) {
wlr_log(WLR_DEBUG, "overwriting old binding with command '%s'",
config_binding->command);
free_sway_binding(config_binding);
mode_bindings->items[i] = binding;
overwritten = true;
}
}
if (!overwritten) {
list_add(mode_bindings, binding);
}
wlr_log(WLR_DEBUG, "%s - Bound %s to command %s",
bindtype, argv[0], binding->command);
return cmd_results_new(CMD_SUCCESS, NULL, NULL);
}
struct cmd_results *cmd_bindsym(int argc, char **argv) {
return cmd_bindsym_or_bindcode(argc, argv, false);
}
struct cmd_results *cmd_bindcode(int argc, char **argv) {
return cmd_bindsym_or_bindcode(argc, argv, true);
}
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