Add modifiers signal, remove wlr_keyboard_update_modifiers

backend/wayland/wl_seat.c

@@ -155,11 +155,7 @@ static void keyboard_handle_key(void *data, struct wl_keyboard *wl_keyboard,
 static void keyboard_handle_modifiers(void *data, struct wl_keyboard *wl_keyboard,
 		uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched,
 		uint32_t mods_locked, uint32_t group) {
-	struct wlr_input_device *dev = data;
-	assert(dev && dev->keyboard);
 
-	wlr_keyboard_update_modifiers(dev->keyboard, mods_depressed, mods_latched,
-		mods_locked, group);
 }
 
 static void keyboard_handle_repeat_info(void *data, struct wl_keyboard *wl_keyboard,

include/wlr/interfaces/wlr_keyboard.h

@@ -13,8 +13,5 @@ void wlr_keyboard_init(struct wlr_keyboard *keyboard, struct wlr_keyboard_impl *
 void wlr_keyboard_destroy(struct wlr_keyboard *keyboard);
 void wlr_keyboard_update_state(struct wlr_keyboard *keyboard,
 		struct wlr_event_keyboard_key *event);
-void wlr_keyboard_update_modifiers(struct wlr_keyboard *keyboard,
-	uint32_t mods_depressed, uint32_t mods_latched, uint32_t mods_locked,
-	uint32_t group);
 
 #endif

include/wlr/types/wlr_keyboard.h

@@ -49,6 +49,7 @@ struct wlr_keyboard {
 
 	struct {
 		struct wl_signal key;
+		struct wl_signal modifiers;
 		struct wl_signal keymap;
 	} events;
 

include/wlr/types/wlr_seat.h

@@ -37,6 +37,7 @@ struct wlr_seat_keyboard {
 	struct wlr_seat *seat;
 	struct wlr_keyboard *keyboard;
 	struct wl_listener key;
+	struct wl_listener modifiers;
 	struct wl_listener keymap;
 	struct wl_listener destroy;
 	struct wl_list link;

types/wlr_keyboard.c

@@ -21,28 +21,7 @@ static void keyboard_led_update(struct wlr_keyboard *keyboard) {
 	wlr_keyboard_led_update(keyboard, leds);
 }
 
-void wlr_keyboard_update_modifiers(struct wlr_keyboard *keyboard,
+static void keyboard_modifier_update(struct wlr_keyboard *keyboard) {
-		uint32_t mods_depressed, uint32_t mods_latched, uint32_t mods_locked,
-		uint32_t group) {
-	if (mods_depressed == keyboard->modifiers.depressed &&
-			mods_latched == keyboard->modifiers.latched &&
-			mods_locked == keyboard->modifiers.locked &&
-			group == keyboard->modifiers.group) {
-		return;
-	}
-	keyboard->modifiers.depressed = mods_depressed;
-	keyboard->modifiers.latched = mods_latched;
-	keyboard->modifiers.locked = mods_locked;
-	keyboard->modifiers.group = group;
-}
-
-void wlr_keyboard_update_state(struct wlr_keyboard *keyboard,
-		struct wlr_event_keyboard_key *event) {
-	uint32_t keycode = event->keycode + 8;
-	xkb_state_update_key(keyboard->xkb_state, keycode,
-		event->state == WLR_KEY_PRESSED ? XKB_KEY_DOWN : XKB_KEY_UP);
-	keyboard_led_update(keyboard);
-
 	xkb_mod_mask_t depressed = xkb_state_serialize_mods(keyboard->xkb_state,
 		XKB_STATE_MODS_DEPRESSED);
 	xkb_mod_mask_t latched = xkb_state_serialize_mods(keyboard->xkb_state,
@@ -51,8 +30,28 @@ void wlr_keyboard_update_state(struct wlr_keyboard *keyboard,
 		XKB_STATE_MODS_LOCKED);
 	xkb_mod_mask_t group = xkb_state_serialize_layout(keyboard->xkb_state,
 		XKB_STATE_LAYOUT_EFFECTIVE);
-	wlr_keyboard_update_modifiers(keyboard, depressed, latched, locked, group);
+	if (depressed == keyboard->modifiers.depressed &&
+			latched == keyboard->modifiers.latched &&
+			locked == keyboard->modifiers.locked &&
+			group == keyboard->modifiers.group) {
+		return;
+	}
 
+	keyboard->modifiers.depressed = depressed;
+	keyboard->modifiers.latched = latched;
+	keyboard->modifiers.locked = locked;
+	keyboard->modifiers.group = group;
+
+	wl_signal_emit(&keyboard->events.modifiers, keyboard);
+}
+
+void wlr_keyboard_update_state(struct wlr_keyboard *keyboard,
+		struct wlr_event_keyboard_key *event) {
+	uint32_t keycode = event->keycode + 8;
+	xkb_state_update_key(keyboard->xkb_state, keycode,
+		event->state == WLR_KEY_PRESSED ? XKB_KEY_DOWN : XKB_KEY_UP);
+	keyboard_led_update(keyboard);
+	keyboard_modifier_update(keyboard);
 	wl_signal_emit(&keyboard->events.key, event);
 }
 
@@ -60,6 +59,7 @@ void wlr_keyboard_init(struct wlr_keyboard *kb,
 		struct wlr_keyboard_impl *impl) {
 	kb->impl = impl;
 	wl_signal_init(&kb->events.key);
+	wl_signal_init(&kb->events.modifiers);
 	wl_signal_init(&kb->events.keymap);
 }
 

types/wlr_seat.c

@@ -376,39 +376,61 @@ void wlr_seat_pointer_send_axis(struct wlr_seat *wlr_seat, uint32_t time,
 	wl_pointer_send_frame(pointer);
 }
 
+static void keyboard_switch_seat_keyboard(struct wlr_seat_handle *handle,
+		struct wlr_seat_keyboard *seat_kb) {
+	if (handle->seat_keyboard == seat_kb) {
+		return;
+	}
+
+	// TODO: We should probably lift all of the keys set by the other
+	// keyboard
+	wl_keyboard_send_keymap(handle->keyboard,
+		WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1, seat_kb->keyboard->keymap_fd,
+		seat_kb->keyboard->keymap_size);
+
+	if (wl_resource_get_version(handle->keyboard) >= 2) {
+		// TODO: Make this better
+		wl_keyboard_send_repeat_info(handle->keyboard, 25, 600);
+	}
+	handle->seat_keyboard = seat_kb;
+}
+
 static void keyboard_key_notify(struct wl_listener *listener, void *data) {
-	struct wlr_seat_keyboard *seat_kb = wl_container_of(
+	struct wlr_seat_keyboard *seat_kb = wl_container_of(listener, seat_kb, key);
-			listener, seat_kb, key);
 	struct wlr_seat *seat = seat_kb->seat;
 	struct wlr_seat_handle *handle = seat->keyboard_state.focused_handle;
 	if (!handle || !handle->keyboard) {
 		return;
 	}
-	struct wlr_keyboard *keyboard = seat_kb->keyboard;
+
+	keyboard_switch_seat_keyboard(handle, seat_kb);
+
 	struct wlr_event_keyboard_key *event = data;
 	enum wlr_key_state key_state = event->state;
-	if (handle->seat_keyboard != seat_kb) {
-		// TODO: We should probably lift all of the keys set by the other
-		// keyboard
-		wl_keyboard_send_keymap(handle->keyboard,
-			WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
-			seat_kb->keyboard->keymap_fd,
-			seat_kb->keyboard->keymap_size);
 
-		if (wl_resource_get_version(handle->keyboard) >= 2) {
+	uint32_t key_serial = wl_display_next_serial(seat->display);
-			// TODO: Make this better
+	wl_keyboard_send_key(handle->keyboard, key_serial,
-			wl_keyboard_send_repeat_info(handle->keyboard, 25, 600);
+		(uint32_t)event->time_usec, event->keycode, key_state);
-		}
+}
-		handle->seat_keyboard = seat_kb;
+
+static void keyboard_modifiers_notify(struct wl_listener *listener,
+		void *data) {
+	struct wlr_seat_keyboard *seat_kb = wl_container_of(listener, seat_kb,
+		modifiers);
+	struct wlr_seat *seat = seat_kb->seat;
+	struct wlr_seat_handle *handle = seat->keyboard_state.focused_handle;
+	if (!handle || !handle->keyboard) {
+		return;
 	}
 
+	keyboard_switch_seat_keyboard(handle, seat_kb);
+
+	struct wlr_keyboard *keyboard = seat_kb->keyboard;
+
 	uint32_t modifiers_serial = wl_display_next_serial(seat->display);
 	wl_keyboard_send_modifiers(handle->keyboard, modifiers_serial,
 		keyboard->modifiers.depressed, keyboard->modifiers.latched,
 		keyboard->modifiers.locked, keyboard->modifiers.group);
-	uint32_t key_serial = wl_display_next_serial(seat->display);
-	wl_keyboard_send_key(handle->keyboard, key_serial,
-		(uint32_t)event->time_usec, event->keycode, key_state);
 }
 
 static void keyboard_keymap_notify(struct wl_listener *listener, void *data) {
@@ -434,6 +456,9 @@ void wlr_seat_attach_keyboard(struct wlr_seat *seat,
 	wl_list_init(&seat_kb->key.link);
 	seat_kb->key.notify = keyboard_key_notify;
 	wl_signal_add(&kb->events.key, &seat_kb->key);
+	wl_list_init(&seat_kb->modifiers.link);
+	seat_kb->modifiers.notify = keyboard_modifiers_notify;
+	wl_signal_add(&kb->events.modifiers, &seat_kb->modifiers);
 	wl_list_init(&seat_kb->keymap.link);
 	seat_kb->keymap.notify = keyboard_keymap_notify;
 	wl_signal_add(&kb->events.keymap, &seat_kb->keymap);
@@ -450,6 +475,7 @@ void wlr_seat_detach_keyboard(struct wlr_seat *seat, struct wlr_keyboard *kb) {
 		if (seat_kb->keyboard == kb) {
 			wl_list_remove(&seat_kb->link);
 			wl_list_remove(&seat_kb->key.link);
+			wl_list_remove(&seat_kb->modifiers.link);
 			wl_list_remove(&seat_kb->keymap.link);
 			wl_list_remove(&seat_kb->destroy.link);
 			free(seat_kb);