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config: error out on keysym translation XKB state failure

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If we can't create the XKB keymap used for keysym translation,
gracefully error out instead of crashing. This can happen if the
XKB_DEFAULT_LAYOUT is set to an invalid value, for instance.

Closes: https://github.com/swaywm/sway/issues/7789
This commit is contained in:
Simon Ser 2024-03-05 08:44:04 +01:00 committed by Simon Zeni
parent 5e18ed3cf0
commit fd9ab9ee06
1 changed files with 16 additions and 1 deletions
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17
sway/config.c
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@ -43,13 +43,20 @@ static struct xkb_state *keysym_translation_state_create(
context, context,
&rules, &rules,
XKB_KEYMAP_COMPILE_NO_FLAGS); XKB_KEYMAP_COMPILE_NO_FLAGS);
xkb_context_unref(context); xkb_context_unref(context);
if (xkb_keymap == NULL) {
sway_log(SWAY_ERROR, "Failed to compile keysym translation XKB keymap");
return NULL;
}
return xkb_state_new(xkb_keymap); return xkb_state_new(xkb_keymap);
} }
static void keysym_translation_state_destroy( static void keysym_translation_state_destroy(
struct xkb_state *state) { struct xkb_state *state) {
if (state == NULL) {
return;
}
xkb_keymap_unref(xkb_state_get_keymap(state)); xkb_keymap_unref(xkb_state_get_keymap(state));
xkb_state_unref(state); xkb_state_unref(state);
} }
@ -339,6 +346,9 @@ static void config_defaults(struct sway_config *config) {
struct xkb_rule_names rules = {0}; struct xkb_rule_names rules = {0};
config->keysym_translation_state = config->keysym_translation_state =
keysym_translation_state_create(rules); keysym_translation_state_create(rules);
if (config->keysym_translation_state == NULL) {
goto cleanup;
}
return; return;
cleanup: cleanup:
@ -987,6 +997,11 @@ void translate_keysyms(struct input_config *input_config) {
input_config_fill_rule_names(input_config, &rules); input_config_fill_rule_names(input_config, &rules);
config->keysym_translation_state = config->keysym_translation_state =
keysym_translation_state_create(rules); keysym_translation_state_create(rules);
if (config->keysym_translation_state == NULL) {
sway_log(SWAY_ERROR, "Failed to create keysym translation XKB state "
"for device '%s'", input_config->identifier);
return;
}
for (int i = 0; i < config->modes->length; ++i) { for (int i = 0; i < config->modes->length; ++i) {
struct sway_mode *mode = config->modes->items[i]; struct sway_mode *mode = config->modes->items[i];