com.vaadin.flow.component.checkbox

Class Checkbox

java.lang.Object

com.vaadin.flow.component.Component

com.vaadin.flow.component.AbstractField<C,T>

com.vaadin.flow.component.AbstractSinglePropertyField<R,T>

com.vaadin.flow.component.checkbox.GeneratedVaadinCheckbox<Checkbox,Boolean>

com.vaadin.flow.component.checkbox.Checkbox

All Implemented Interfaces:

AttachNotifier, BlurNotifier<Checkbox>, ClickNotifier<Checkbox>, DetachNotifier, Focusable<Checkbox>, FocusNotifier<Checkbox>, HasElement, HasEnabled, HasLabel, HasSize, HasStyle, HasValue<AbstractField.ComponentValueChangeEvent<Checkbox,Boolean>,Boolean>, HasValueAndElement<AbstractField.ComponentValueChangeEvent<Checkbox,Boolean>,Boolean>, Serializable

public class Checkbox
extends GeneratedVaadinCheckbox<Checkbox,Boolean>
implements HasSize, HasLabel

Server-side component for the vaadin-checkbox element.

Checkbox is a value component that can be checked or unchecked. The default value is unchecked.

Checkbox also has a indeterminate mode, see isIndeterminate() for more info.

Author:

Vaadin Ltd

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.vaadin.flow.component.checkbox.GeneratedVaadinCheckbox

GeneratedVaadinCheckbox.ChangeEvent<R extends GeneratedVaadinCheckbox<R,?>>, GeneratedVaadinCheckbox.CheckedChangeEvent<R extends GeneratedVaadinCheckbox<R,?>>, GeneratedVaadinCheckbox.IndeterminateChangeEvent<R extends GeneratedVaadinCheckbox<R,?>>

Nested classes/interfaces inherited from class com.vaadin.flow.component.AbstractField

AbstractField.ComponentValueChangeEvent<C extends Component,V>

Nested classes/interfaces inherited from interface com.vaadin.flow.component.BlurNotifier

BlurNotifier.BlurEvent<C extends Component>

Nested classes/interfaces inherited from interface com.vaadin.flow.component.FocusNotifier

FocusNotifier.FocusEvent<C extends Component>

Nested classes/interfaces inherited from interface com.vaadin.flow.component.HasValue

HasValue.ValueChangeEvent<V>, HasValue.ValueChangeListener<E extends HasValue.ValueChangeEvent<?>>

Constructor Summary

Constructors

Constructor and Description
Checkbox() Default constructor.
Checkbox(boolean initialValue) Constructs a checkbox with the initial value.
Checkbox(String labelText) Constructs a checkbox with the initial label text.
Checkbox(String labelText, boolean initialValue) Constructs a checkbox with the initial value.
Checkbox(String label, HasValue.ValueChangeListener<AbstractField.ComponentValueChangeEvent<Checkbox,Boolean>> listener) Constructs a checkbox with the initial label text and value change listener.

Method Summary

Modifier and Type	Method and Description
String	getLabel() Get the current label text.
boolean	isAutofocus() Get the state for the auto-focus property of the checkbox.
boolean	isIndeterminate() Get the indeterminate state of the checkbox.
void	setAriaLabel(String ariaLabel) Set the accessibility label of this checkbox.
void	setAutofocus(boolean autofocus) Set the checkbox to be input focused when the page loads.
void	setIndeterminate(boolean indeterminate) Set the indeterminate state of the checkbox.
void	setLabel(String label) Set the current label text of this checkbox.
void	setLabelAsHtml(String htmlContent) Set the current label text of this checkbox with HTML formatting.

Methods inherited from class com.vaadin.flow.component.checkbox.GeneratedVaadinCheckbox

addChangeListener, addCheckedChangeListener, addIndeterminateChangeListener, getNameString, isAutofocusBoolean, isDisabledBoolean, isIndeterminateBoolean, setDisabled, setName

Methods inherited from class com.vaadin.flow.component.AbstractSinglePropertyField

getSynchronizationRegistration, hasValidValue, setPresentationValue, setSynchronizedEvent

Methods inherited from class com.vaadin.flow.component.AbstractField

addValueChangeListener, getEmptyValue, getValue, isEmpty, setModelValue, setValue, valueEquals

Methods inherited from class com.vaadin.flow.component.Component

addListener, fireEvent, from, get, getChildren, getElement, getEventBus, getId, getLocale, getParent, getTranslation, getTranslation, getTranslation, getTranslation, getUI, hasListener, isAttached, isTemplateMapped, isVisible, onAttach, onDetach, onEnabledStateChanged, set, setElement, setId, setVisible

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.vaadin.flow.component.HasSize

getCssSize, getHeight, getHeightUnit, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getWidth, getWidthUnit, setHeight, setHeight, setHeightFull, setMaxHeight, setMaxHeight, setMaxWidth, setMaxWidth, setMinHeight, setMinHeight, setMinWidth, setMinWidth, setSizeFull, setSizeUndefined, setWidth, setWidth, setWidthFull

Methods inherited from interface com.vaadin.flow.component.HasElement

getElement

Methods inherited from interface com.vaadin.flow.component.HasStyle

addClassName, addClassNames, getClassName, getClassNames, getStyle, hasClassName, removeClassName, removeClassNames, setClassName, setClassName

Methods inherited from interface com.vaadin.flow.component.Focusable

addFocusShortcut, blur, focus, getTabIndex, setTabIndex

Methods inherited from interface com.vaadin.flow.component.BlurNotifier

addBlurListener

Methods inherited from interface com.vaadin.flow.component.FocusNotifier

addFocusListener

Methods inherited from interface com.vaadin.flow.component.HasEnabled

isEnabled, setEnabled

Methods inherited from interface com.vaadin.flow.component.ClickNotifier

addClickListener, addClickShortcut

Methods inherited from interface com.vaadin.flow.component.HasValueAndElement

isReadOnly, isRequiredIndicatorVisible, setReadOnly, setRequiredIndicatorVisible

Methods inherited from interface com.vaadin.flow.component.HasValue

clear, getOptionalValue

Methods inherited from interface com.vaadin.flow.component.AttachNotifier

addAttachListener

Methods inherited from interface com.vaadin.flow.component.DetachNotifier

addDetachListener

Constructor Detail

Checkbox

public Checkbox()

Default constructor.

Checkbox

public Checkbox(String labelText)

Constructs a checkbox with the initial label text.

Parameters:

labelText - the label text to set

See Also:

setLabel(String)

Checkbox

public Checkbox(boolean initialValue)

Constructs a checkbox with the initial value.

Parameters:

initialValue - the initial value

See Also:

AbstractField.setValue(Object)

Checkbox

public Checkbox(String labelText,
                boolean initialValue)

Constructs a checkbox with the initial value.

Parameters:

labelText - the label text to set

initialValue - the initial value

See Also:

setLabel(String), AbstractField.setValue(Object)

Checkbox

public Checkbox(String label,
                HasValue.ValueChangeListener<AbstractField.ComponentValueChangeEvent<Checkbox,Boolean>> listener)

Constructs a checkbox with the initial label text and value change listener.

Parameters:

label - the label text to set

listener - the value change listener to add

See Also:

setLabel(String), HasValue.addValueChangeListener(ValueChangeListener)

Method Detail

getLabel

public String getLabel()

Get the current label text.

Specified by:

getLabel in interface HasLabel

Returns:

the current label text

setLabel

public void setLabel(String label)

Set the current label text of this checkbox.

Specified by:

setLabel in interface HasLabel

Parameters:

label - the label text to set

setLabelAsHtml

public void setLabelAsHtml(String htmlContent)

Set the current label text of this checkbox with HTML formatting.

XSS vulnerability warning: the given HTML is rendered in the browser as is and the developer is responsible for ensuring no harmful HTML is used.

Parameters:

htmlContent - the label html to set

setAriaLabel

public void setAriaLabel(String ariaLabel)

Set the accessibility label of this checkbox.

Parameters:

ariaLabel - the accessibility label to set

See Also:

aria-label at MDN

setAutofocus

public void setAutofocus(boolean autofocus)

Set the checkbox to be input focused when the page loads.

Overrides:

setAutofocus in class GeneratedVaadinCheckbox<Checkbox,Boolean>

Parameters:

autofocus - the boolean value to set

isAutofocus

public boolean isAutofocus()

Get the state for the auto-focus property of the checkbox.

This property is not synchronized automatically from the client side, so the returned value may not be the same as in client side.

Returns:

the autofocus property from the checkbox

setIndeterminate

public void setIndeterminate(boolean indeterminate)

Set the indeterminate state of the checkbox.

NOTE: As according to the HTML5 standard, this has only effect on the visual appearance, not on the checked value!

Overrides:

setIndeterminate in class GeneratedVaadinCheckbox<Checkbox,Boolean>

Parameters:

indeterminate - the boolean value to set

See Also:

isIndeterminate()

isIndeterminate

public boolean isIndeterminate()

Get the indeterminate state of the checkbox. The default value is false.

An indeterminate checkbox is neither checked nor unchecked. A typical use case is a “Select All” checkbox indicating that some, but not all, items are selected. When the user clicks an indeterminate checkbox, it is no longer indeterminate, and the checked value also changes.

NOTE: As according to the HTML5 standard, this has only effect on the visual appearance, not on the checked value!

Returns:

the indeterminate property from the checkbox