views_handler_area::options_form in core/modules/views/handlers/views_handler_area.inc

Default options form that provides the label widget that all fields should have.

views_handler_argument::options_form in core/modules/views/handlers/views_handler_argument.inc

Build the options form.

views_handler_field::options_form in core/modules/views/handlers/views_handler_field.inc

Default options form that provides the label widget that all fields should have.

views_handler_filter::options_form in core/modules/views/handlers/views_handler_filter.inc

Provide the basic form which calls through to subforms. If overridden, it is best to call through to the parent, or to at least make sure all of the functions in this form are called.

views_handler_relationship::options_form in core/modules/views/handlers/views_handler_relationship.inc

Default options form that provides the label widget that all fields should have.

views_handler_sort::options_form in core/modules/views/handlers/views_handler_sort.inc

Basic options for all sort criteria