text_input: Only send surrounding_text and content_type if supported

sway/input/text_input.c

@@ -92,13 +92,18 @@ static void relay_send_im_state(struct sway_input_method_relay *relay,
 		return;
 	}
 	// TODO: only send each of those if they were modified
+	if (input->active_features & WLR_TEXT_INPUT_V3_FEATURE_SURROUNDING_TEXT) {
 		wlr_input_method_v2_send_surrounding_text(input_method,
 			input->current.surrounding.text, input->current.surrounding.cursor,
 			input->current.surrounding.anchor);
+	}
 	wlr_input_method_v2_send_text_change_cause(input_method,
 		input->current.text_change_cause);
+	if (input->active_features & WLR_TEXT_INPUT_V3_FEATURE_CONTENT_TYPE) {
 		wlr_input_method_v2_send_content_type(input_method,
-		input->current.content_type.hint, input->current.content_type.purpose);
+			input->current.content_type.hint,
+			input->current.content_type.purpose);
+	}
 	wlr_input_method_v2_send_done(input_method);
 	// TODO: pass intent, display popup size
 }