Package com.intellij.openapi.ui

Interface ComboBoxPopupState<T>

All Known Implementing Classes:

SdkListModel

public interface ComboBoxPopupState<T>

A ComboBox's model may implement that interface to handle a custom sub-popup to be shown for some ComboBox elements.
All elements of the ComboBox and it's sub-popups has to have the same element type to be able to re-use the ComboBox configured presenter
Note, it is necessary to call com.intellij.openapi.ui.ComboBox#setSwingPopup(false) before to activate the checks and to allow JBPopup to be used

See Also:

DarculaJBPopupComboPopup

Method Summary

Modifier and Type	Method and Description
boolean	hasSubstep(T selectedValue) In addition to the onChosen(Object) is it possible to show the sub-popup on a mouse hover, without an explicit click.
javax.swing.ListModel<T>	onChosen(T selectedValue) This method is called on the ComboBoxModel instance of the combobox to decide if there is next step needed or not.

Method Detail

onChosen

javax.swing.ListModel<T> onChosen(T selectedValue)

This method is called on the ComboBoxModel instance of the combobox to decide if there is next step needed or not.
Return null if there is no sup-pupup to be shown. That would mean the JComboBox.setSelectedItem(Object) is executed with the same parameter.
A non-null value would mean a sub-popup to be created. The sub-popup will use the same element type and the same renderer as the original ComboBox. The returned object will be checked again to implement this interface.

Parameters:

selectedValue - the selected item.

Returns:

new model to show sub-popup or null to accept the suggested element.

hasSubstep

boolean hasSubstep(T selectedValue)

In addition to the onChosen(Object) is it possible to show the sub-popup on a mouse hover, without an explicit click.

Returns:

true to allow that.