seat: Provide dummy resources for inert seats

include/types/wlr_seat.h

@@ -10,18 +10,24 @@ extern const struct wlr_touch_grab_interface default_touch_grab_impl;
 
 void seat_client_create_pointer(struct wlr_seat_client *seat_client,
 	uint32_t version, uint32_t id);
+void seat_client_create_inert_pointer(struct wl_client *client,
+		uint32_t version, uint32_t id);
 void seat_client_destroy_pointer(struct wl_resource *resource);
 void seat_client_send_pointer_leave_raw(struct wlr_seat_client *seat_client,
 	struct wlr_surface *surface);
 
 void seat_client_create_keyboard(struct wlr_seat_client *seat_client,
 	uint32_t version, uint32_t id);
+void seat_client_create_inert_keyboard(struct wl_client *client,
+		uint32_t version, uint32_t id);
 void seat_client_destroy_keyboard(struct wl_resource *resource);
 void seat_client_send_keyboard_leave_raw(struct wlr_seat_client *seat_client,
 	struct wlr_surface *surface);
 
 void seat_client_create_touch(struct wlr_seat_client *seat_client,
 	uint32_t version, uint32_t id);
+void seat_client_create_inert_touch(struct wl_client *client,
+		uint32_t version, uint32_t id);
 void seat_client_destroy_touch(struct wl_resource *resource);
 
 #endif

types/seat/wlr_seat.c

@@ -16,9 +16,12 @@
 
 static void seat_handle_get_pointer(struct wl_client *client,
 		struct wl_resource *seat_resource, uint32_t id) {
+	uint32_t version = wl_resource_get_version(seat_resource);
 	struct wlr_seat_client *seat_client =
 		wlr_seat_client_from_resource(seat_resource);
 	if (!seat_client) {
+		// The client still needs a resource, so here's a dummy:
+		seat_client_create_inert_pointer(client, version, id);
 		return;
 	}
 	if (!(seat_client->seat->accumulated_capabilities & WL_SEAT_CAPABILITY_POINTER)) {
@@ -27,15 +30,16 @@ static void seat_handle_get_pointer(struct wl_client *client,
 		return;
 	}
 
-	uint32_t version = wl_resource_get_version(seat_resource);
 	seat_client_create_pointer(seat_client, version, id);
 }
 
 static void seat_handle_get_keyboard(struct wl_client *client,
 		struct wl_resource *seat_resource, uint32_t id) {
+	uint32_t version = wl_resource_get_version(seat_resource);
 	struct wlr_seat_client *seat_client =
 		wlr_seat_client_from_resource(seat_resource);
 	if (!seat_client) {
+		seat_client_create_inert_keyboard(client, version, id);
 		return;
 	}
 	if (!(seat_client->seat->accumulated_capabilities & WL_SEAT_CAPABILITY_KEYBOARD)) {
@@ -44,15 +48,16 @@ static void seat_handle_get_keyboard(struct wl_client *client,
 		return;
 	}
 
-	uint32_t version = wl_resource_get_version(seat_resource);
 	seat_client_create_keyboard(seat_client, version, id);
 }
 
 static void seat_handle_get_touch(struct wl_client *client,
 		struct wl_resource *seat_resource, uint32_t id) {
+	uint32_t version = wl_resource_get_version(seat_resource);
 	struct wlr_seat_client *seat_client =
 		wlr_seat_client_from_resource(seat_resource);
 	if (!seat_client) {
+		seat_client_create_inert_touch(client, version, id);
 		return;
 	}
 	if (!(seat_client->seat->accumulated_capabilities & WL_SEAT_CAPABILITY_TOUCH)) {
@@ -61,7 +66,6 @@ static void seat_handle_get_touch(struct wl_client *client,
 		return;
 	}
 
-	uint32_t version = wl_resource_get_version(seat_resource);
 	seat_client_create_touch(seat_client, version, id);
 }
 

types/seat/wlr_seat_keyboard.c

@@ -438,6 +438,17 @@ void seat_client_create_keyboard(struct wlr_seat_client *seat_client,
 	}
 }
 
+void seat_client_create_inert_keyboard(struct wl_client *client,
+		uint32_t version, uint32_t id) {
+	struct wl_resource *resource =
+		wl_resource_create(client, &wl_keyboard_interface, version, id);
+	if (!resource) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+	wl_resource_set_implementation(resource, &keyboard_impl, NULL, NULL);
+}
+
 void seat_client_destroy_keyboard(struct wl_resource *resource) {
 	struct wlr_seat_client *seat_client =
 		seat_client_from_keyboard_resource(resource);

types/seat/wlr_seat_pointer.c

@@ -487,7 +487,6 @@ bool wlr_seat_pointer_has_grab(struct wlr_seat *seat) {
 	return seat->pointer_state.grab->interface != &default_pointer_grab_impl;
 }
 
-
 void seat_client_create_pointer(struct wlr_seat_client *seat_client,
 		uint32_t version, uint32_t id) {
 	struct wl_resource *resource = wl_resource_create(seat_client->client,
@@ -531,6 +530,17 @@ void seat_client_create_pointer(struct wlr_seat_client *seat_client,
 	}
 }
 
+void seat_client_create_inert_pointer(struct wl_client *client,
+		uint32_t version, uint32_t id) {
+	struct wl_resource *resource =
+		wl_resource_create(client, &wl_pointer_interface, version, id);
+	if (!resource) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+	wl_resource_set_implementation(resource, &pointer_impl, NULL, NULL);
+}
+
 void seat_client_destroy_pointer(struct wl_resource *resource) {
 	struct wlr_seat_client *seat_client =
 		wlr_seat_client_from_pointer_resource(resource);

types/seat/wlr_seat_touch.c

@@ -442,6 +442,17 @@ void seat_client_create_touch(struct wlr_seat_client *seat_client,
 	}
 }
 
+void seat_client_create_inert_touch(struct wl_client *client, uint32_t version,
+		uint32_t id) {
+	struct wl_resource *resource =
+		wl_resource_create(client, &wl_touch_interface, version, id);
+	if (!resource) {
+		wl_client_post_no_memory(client);
+		return;
+	}
+	wl_resource_set_implementation(resource, &touch_impl, NULL, NULL);
+}
+
 void seat_client_destroy_touch(struct wl_resource *resource) {
 	struct wlr_seat_client *seat_client =
 		seat_client_from_touch_resource(resource);