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input/keyboard: attempt default keymap on failure

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This attempts to use the default keymap when the one defined in the
input config fails to compile. The goal is to make it so the keyboard
is always in a usable state, even if it is not the user's requested
settings as usability is more important.

This also removes the calls to `getenv` for the `XKB_DEFAULT_*` family
of environment variables. The reasoning is libxkbcommon will fallback
to using those (and then the system defaults) when any of the rule
names are `NULL` or an empty string anyway so there is no need for
sway to duplicate the efforts.
This commit is contained in:
Brian Ashworth 2019-05-13 23:56:59 -04:00 committed by Drew DeVault
parent 56b7d8936a
commit b8f12b4783
2 changed files with 27 additions and 33 deletions
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2
include/sway/input/keyboard.h
View File

@ -65,6 +65,8 @@ struct sway_keyboard {
struct sway_binding *repeat_binding;
};
struct xkb_keymap *sway_keyboard_compile_keymap(struct input_config *ic);
struct sway_keyboard *sway_keyboard_create(struct sway_seat *seat,
struct sway_seat_device *device);

56
sway/input/keyboard.c
View File

@ -476,46 +476,39 @@ struct sway_keyboard *sway_keyboard_create(struct sway_seat *seat,
return keyboard;
}
struct xkb_keymap *sway_keyboard_compile_keymap(struct input_config *ic) {
struct xkb_rule_names rules = {0};
if (ic) {
input_config_fill_rule_names(ic, &rules);
}
struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
if (!sway_assert(context, "cannot create XKB context")) {
return NULL;
}
struct xkb_keymap *keymap =
xkb_keymap_new_from_names(context, &rules, XKB_KEYMAP_COMPILE_NO_FLAGS);
xkb_context_unref(context);
return keymap;
}
void sway_keyboard_configure(struct sway_keyboard *keyboard) {
struct input_config *input_config =
input_device_get_config(keyboard->seat_device->input_device);
struct wlr_input_device *wlr_device =
keyboard->seat_device->input_device->wlr_device;
struct xkb_rule_names rules = {0};
if (input_config) {
input_config_fill_rule_names(input_config, &rules);
}
if (!rules.layout) {
rules.layout = getenv("XKB_DEFAULT_LAYOUT");
}
if (!rules.model) {
rules.model = getenv("XKB_DEFAULT_MODEL");
}
if (!rules.options) {
rules.options = getenv("XKB_DEFAULT_OPTIONS");
}
if (!rules.rules) {
rules.rules = getenv("XKB_DEFAULT_RULES");
}
if (!rules.variant) {
rules.variant = getenv("XKB_DEFAULT_VARIANT");
}
struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
if (!sway_assert(context, "cannot create XKB context")) {
return;
}
struct xkb_keymap *keymap =
xkb_keymap_new_from_names(context, &rules, XKB_KEYMAP_COMPILE_NO_FLAGS);
struct xkb_keymap *keymap = sway_keyboard_compile_keymap(input_config);
if (!keymap) {
sway_log(SWAY_DEBUG, "cannot configure keyboard: keymap does not exist");
xkb_context_unref(context);
sway_log(SWAY_ERROR, "Failed to compile keymap. Attempting defaults");
keymap = sway_keyboard_compile_keymap(NULL);
if (!keymap) {
sway_log(SWAY_ERROR,
"Failed to compile default keymap. Aborting configure");
return;
}
}
xkb_keymap_unref(keyboard->keymap);
keyboard->keymap = keymap;
@ -557,7 +550,6 @@ void sway_keyboard_configure(struct sway_keyboard *keyboard) {
wlr_keyboard_set_repeat_info(wlr_device->keyboard, repeat_rate,
repeat_delay);
xkb_context_unref(context);
struct wlr_seat *seat = keyboard->seat_device->sway_seat->wlr_seat;
wlr_seat_set_keyboard(seat, wlr_device);