views_ui_standard_display_dropdown(&$form, FormStateInterface $form_state, $section) Add a <select>
Provides the Views' administrative interface. File core/modules/views_ui/admin.inc
views_ui_form_button_was_clicked($element, FormStateInterface $form_state) #process callback for a button;
views_ui_nojs_submit($form, FormStateInterface $form_state) Non-Javascript fallback for updating the add view
views_ui_add_ajax_trigger(&$wrapping_element, $trigger_key, $refresh_parents) Converts a form element in
views_ui_build_form_url(FormStateInterface $form_state) Create the menu path for one of our standard AJAX forms
views_ui_add_limited_validation($element, FormStateInterface $form_state) Processes a non-JavaScript fallback
views_ui_add_ajax_wrapper($element, FormStateInterface $form_state) After-build function that adds a wrapper
views_ui_ajax_update_form($form, FormStateInterface $form_state) Updates a part of the add view form via AJAX