ajax_test_dialog_contents in core/modules/simpletest/tests/ajax_test.module
Menu callback: Returns the contents for dialogs opened by ajax_test_dialog().
file_managed_file_browser_open in core/modules/file/file.module
AJAX callback for managed_file elements to open a browser modal dialog.
filter_admin_format_filter_settings_form_ajax in core/modules/filter/filter.admin.inc
Ajax handler: Opens the dialog to configure a text format filter.
installer_manager_install_modal_callback in core/modules/installer/installer.manager.inc
AJAX callback to update the add/remove queue on bulk add.
layout_ajax_form_open_dialog in core/modules/layout/layout.admin.inc
AJAX handler that opens a form in a dialog.
layout_ajax_form_save_dialog in core/modules/layout/layout.admin.inc
AJAX handler that saves a form in a dialog and updates the underlying form.
layout_ajax_form_save_title_dialog in core/modules/layout/layout.admin.inc
layout_block_configure_ajax_update in core/modules/layout/layout.admin.inc
AJAX callback to update the underlying layout form after updating a block.
layout_flexible_template_edit_row_ajax in core/modules/layout/layout.flexible.inc
AJAX callback on the submit button for editing a layout row.
views_ajax_error in core/modules/views/includes/ajax.inc
Return an AJAX error.
views_ajax_form_wrapper in core/modules/views/includes/ajax.inc
Wrapper around backdrop_build_form to handle some AJAX stuff automatically. This makes some assumptions about the client.