Pass keys along from wayland backend to clients

include/client/registry.h

@@ -51,7 +51,7 @@ struct input {
 	uint32_t last_code;
 	uint32_t modifiers;
 
-	void (*notify)(enum wl_keyboard_key_state state, xkb_keysym_t sym, uint32_t code);
+	void (*notify)(enum wl_keyboard_key_state state, xkb_keysym_t sym, uint32_t code, uint32_t codepoint);
 };
 
 struct registry {

swaylock/main.c

@@ -29,6 +29,10 @@ void sway_terminate(void) {
 	exit(EXIT_FAILURE);
 }
 
+void notify_key(enum wl_keyboard_key_state state, xkb_keysym_t sym, uint32_t code, uint32_t codepoint) {
+	sway_log(L_INFO, "notified of key %c", (char)codepoint);
+}
+
 int main(int argc, char **argv) {
 	init_log(L_INFO);
 	surfaces = create_list();
@@ -49,6 +53,8 @@ int main(int argc, char **argv) {
 		list_add(surfaces, window);
 	}
 
+	registry->input->notify = notify_key;
+
 	GError *err = NULL;
 	GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(argv[1], &err); // TODO: Parse i3lock arguments
 	if (!pixbuf) {

wayland/registry.c

@@ -133,18 +133,36 @@ static void keyboard_handle_key(void *data, struct wl_keyboard *keyboard,
 	xkb_keysym_t sym = xkb_state_key_get_one_sym(registry->input->xkb.state, key + 8);
 	registry->input->sym = (state == WL_KEYBOARD_KEY_STATE_PRESSED ? sym : XKB_KEY_NoSymbol);
 	registry->input->code = (state == WL_KEYBOARD_KEY_STATE_PRESSED ? key + 8 : 0);
+	uint32_t codepoint = xkb_state_key_get_utf32(registry->input->xkb.state, registry->input->code);
 	if (registry->input->notify) {
-		registry->input->notify(state, sym, key);
+		registry->input->notify(state, sym, key, codepoint);
 	}
 }
 
 static void keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard,
 		uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched,
 		uint32_t mods_locked, uint32_t group) {
+	struct registry *registry = data;
+
+	if (!registry->input->xkb.keymap) {
+		return;
+	}
+
+	xkb_state_update_mask(registry->input->xkb.state, mods_depressed, mods_latched, mods_locked, 0, 0, group);
+	xkb_mod_mask_t mask = xkb_state_serialize_mods(registry->input->xkb.state,
+			XKB_STATE_MODS_DEPRESSED | XKB_STATE_MODS_LATCHED);
+
+	registry->input->modifiers = 0;
+	for (uint32_t i = 0; i < MASK_LAST; ++i) {
+		if (mask & registry->input->xkb.masks[i]) {
+			registry->input->modifiers |= XKB_MODS[i];
+		}
+	}
 }
 
 static void keyboard_handle_repeat_info(void *data, struct wl_keyboard *keyboard,
 		int32_t rate, int32_t delay) {
+	// this space intentionally left blank
 }
 
 static const struct wl_keyboard_listener keyboard_listener = {