Interface HasEnabled

All Superinterfaces:

HasElement, Serializable

All Known Subinterfaces:

FlexComponent<C>, Focusable<T>, HasComponents, HasItemsAndComponents<T>, HasOrderedComponents<T>, HasValueAndElement<E,V>, MultiSelect<C,T>, SingleSelect<C,T>

All Known Implementing Classes:

AbstractCompositeField, AbstractField, AbstractSinglePropertyField, Anchor, Article, Aside, Button, Checkbox, ComboBox, DatePicker, DescriptionList, DescriptionList.Description, DescriptionList.Term, Dialog, Div, Emphasis, FlexLayout, Footer, FormLayout, FormLayout.FormItem, GeneratedVaadinButton, GeneratedVaadinCheckbox, GeneratedVaadinComboBox, GeneratedVaadinDatePicker, GeneratedVaadinPasswordField, GeneratedVaadinRadioButton, GeneratedVaadinRadioGroup, GeneratedVaadinTextArea, GeneratedVaadinTextField, Grid, H1, H2, H3, H4, H5, H6, Header, HorizontalLayout, HtmlContainer, Image, Input, IronList, Label, ListBox, ListItem, Main, NativeButton, Nav, Notification, OrderedList, Paragraph, PasswordField, RadioButtonGroup, RouterLink, Section, Span, Tab, Tabs, TextArea, TextField, UI, UnorderedList, VerticalLayout

public interface HasEnabled
extends HasElement

A generic interface for components and other user interface objects that may be enabled or disabled.

Element may be implicitly or explicitly disabled.

• Element is explicitly disabled if it's disabled via the setEnabled(false) call.
• Element is implicitly disabled if it has an ascendant which is explicitly disabled.

An implicitly disabled element becomes enabled automatically if its disabled ascendant becomes enabled.

Element may be explicitly disabled being in a disabled parent. Such element remains disabled when its parent becomes enabled.

Note that an element may change its enabled state if it's inside disabled parent and it becomes detached from it. In this case if it has not been explicitly disabled then it becomes enabled until it's attached. If the new parent is enabled then the element remains enabled. Otherwise it becomes disabled again.

Since:

1.0

Author:

Vaadin Ltd