14 classes are annotated with ConditionalFieldsHandler in Conditional Fields 4.x

Checkbox in src/Plugin/conditional_fields/handler/Checkbox.php

Provides states handler for single on/off checkbox.

DateDefault in src/Plugin/conditional_fields/handler/DateDefault.php

Provides states handler for date combos.

DateList in src/Plugin/conditional_fields/handler/DateList.php

Provides states handler for date lists.

DefaultStateHandler in src/Plugin/conditional_fields/handler/DefaultStateHandler.php

Provides states handler for text fields.

EmailDefault in src/Plugin/conditional_fields/handler/EmailDefault.php

Provides states handler for emails.

EntityReference in src/Plugin/conditional_fields/handler/EntityReference.php

Provides states handler for entity reference fields.

EntityReferenceTags in src/Plugin/conditional_fields/handler/EntityReferenceTags.php

Provides states handler for entity reference fields.

LanguageSelect in src/Plugin/conditional_fields/handler/LanguageSelect.php

Provides states handler for language select list.

LinkAddressfield in src/Plugin/conditional_fields/handler/extra_contrib/LinkAddressfield.php

Provides states handler for links provided by the Addressfield module.

LinkField in src/Plugin/conditional_fields/handler/LinkField.php

Provides states handler for links provided by the Link module.

Number in src/Plugin/conditional_fields/handler/Number.php

Provides states handler for Number (integer, decimal and float).

OptionsButtons in src/Plugin/conditional_fields/handler/OptionsButtons.php

Provides states handler for Check boxes/radio buttons.

Select in src/Plugin/conditional_fields/handler/Select.php

Provides states handler for multiple select lists.

TextAreaFormated in src/Plugin/conditional_fields/handler/TextAreaFormated.php

Provides states handler for textarea fields.