Package com.vaadin.flow.component.button

Class Button

java.lang.Object
com.vaadin.flow.component.Component
com.vaadin.flow.component.button.Button
All Implemented Interfaces:
com.vaadin.flow.component.AttachNotifier, com.vaadin.flow.component.BlurNotifier<Button>, com.vaadin.flow.component.ClickNotifier<Button>, com.vaadin.flow.component.DetachNotifier, com.vaadin.flow.component.Focusable<Button>, com.vaadin.flow.component.FocusNotifier<Button>, com.vaadin.flow.component.HasAriaLabel, com.vaadin.flow.component.HasElement, com.vaadin.flow.component.HasEnabled, com.vaadin.flow.component.HasSize, com.vaadin.flow.component.HasStyle, com.vaadin.flow.component.HasText, com.vaadin.flow.component.HasTheme, HasPrefix, HasSuffix, HasThemeVariant<ButtonVariant>, HasTooltip, Serializable
@Tag("vaadin-button") @NpmPackage(value="@vaadin/polymer-legacy-adapter",version="24.3.1") @NpmPackage(value="@vaadin/button",version="24.3.1") @JsModule("@vaadin/polymer-legacy-adapter/style-modules.js") @JsModule("@vaadin/button/src/vaadin-button.js") @JsModule("./buttonFunctions.js") public class Button extends com.vaadin.flow.component.Component implements com.vaadin.flow.component.ClickNotifier<Button>, com.vaadin.flow.component.Focusable<Button>, com.vaadin.flow.component.HasAriaLabel, com.vaadin.flow.component.HasEnabled, HasPrefix, com.vaadin.flow.component.HasSize, com.vaadin.flow.component.HasStyle, HasSuffix, com.vaadin.flow.component.HasText, HasThemeVariant<ButtonVariant>, HasTooltip
The Button component allows users to perform actions. It comes in several different style variants, and supports icons in addition to text labels.
Author:
Vaadin Ltd
See Also:

  • Nested Class Summary

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

    com.vaadin.flow.component.BlurNotifier.BlurEvent<C extends com.vaadin.flow.component.Component>

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

    com.vaadin.flow.component.FocusNotifier.FocusEvent<C extends com.vaadin.flow.component.Component>

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

    com.vaadin.flow.component.HasText.WhiteSpace

  • Constructor Summary

    Constructors
    Constructor
    Description
    Button()
    Default constructor.
    Button(com.vaadin.flow.component.Component icon)
    Creates a button with an icon inside.
    Button(com.vaadin.flow.component.Component icon, com.vaadin.flow.component.ComponentEventListener<com.vaadin.flow.component.ClickEvent<Button>> clickListener)
    Creates a button with an icon and a listener for click events.
    Button(String text)
    Creates a button with a text inside.
    Button(String text, com.vaadin.flow.component.Component icon)
    Creates a button with a text and an icon inside.
    Button(String text, com.vaadin.flow.component.ComponentEventListener<com.vaadin.flow.component.ClickEvent<Button>> clickListener)
    Creates a button with a text and a listener for click events.
    Button(String text, com.vaadin.flow.component.Component icon, com.vaadin.flow.component.ComponentEventListener<com.vaadin.flow.component.ClickEvent<Button>> clickListener)
    Create a button with a text, an icon and a listener for click events.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    click()
    Simulates a click on this button on the server side if it is enabled.
    void
    clickInClient()
    Executes a click on this button at the client-side.
    com.vaadin.flow.component.Component
    getIcon()
    Gets the component that is defined as the icon of this button.
    boolean
    isAutofocus()
    Get the state for the auto-focus property of the button.
    boolean
    isDisableOnClick()
    Get if button is set to be disabled on click.
    boolean
    isIconAfterText()
    Gets whether this button's icon is positioned after it's text content or the other way around.
    protected void
    onAttach(com.vaadin.flow.component.AttachEvent attachEvent)
     
    protected void
    remove(com.vaadin.flow.component.Component... components)
    Removes the given child components from this component.
    void
    setAutofocus(boolean autofocus)
    Set the button to be input focused when the page loads.
    void
    setDisableOnClick(boolean disableOnClick)
    Set the button so that it is disabled on click.
    void
    setIcon(com.vaadin.flow.component.Component icon)
    Sets the given component as the icon of this button.
    void
    setIconAfterText(boolean iconAfterText)
    Sets whether this button's icon should be positioned after it's text content or the other way around.
    void
    setText(String text)
    Sets the given string as the text content of this component.

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

    addListener, findAncestor, fireEvent, from, get, getChildren, getElement, getEventBus, getId, getListeners, getLocale, getParent, getTranslation, getTranslation, getTranslation, getTranslation, getTranslation, getTranslation, getUI, hasListener, isAttached, isTemplateMapped, isVisible, onDetach, onEnabledStateChanged, removeFromParent, scrollIntoView, scrollIntoView, 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.AttachNotifier

    addAttachListener

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

    addBlurListener

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

    addClickListener, addClickShortcut, addDoubleClickListener, addSingleClickListener

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

    addDetachListener

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

    addFocusShortcut, blur, focus, getTabIndex, setTabIndex

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

    addFocusListener

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

    getAriaLabel, getAriaLabelledBy, setAriaLabel, setAriaLabelledBy

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

    getElement

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

    isEnabled, setEnabled

    Methods inherited from interface com.vaadin.flow.component.shared.HasPrefix

    getPrefixComponent, setPrefixComponent

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

    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.HasStyle

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

    Methods inherited from interface com.vaadin.flow.component.shared.HasSuffix

    getSuffixComponent, setSuffixComponent

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

    getText, getWhiteSpace, setWhiteSpace

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

    addThemeName, addThemeNames, getThemeName, getThemeNames, hasThemeName, removeThemeName, removeThemeNames, setThemeName, setThemeName

    Methods inherited from interface com.vaadin.flow.component.shared.HasThemeVariant

    addThemeVariants, removeThemeVariants

    Methods inherited from interface com.vaadin.flow.component.shared.HasTooltip

    getTooltip, setTooltipText

  • Constructor Details

    • Button

      public Button()
      Default constructor. Creates an empty button.

    • Button

      public Button(String text)
      Creates a button with a text inside.
      Parameters:
      text - the text inside the button
      See Also:

    • Button

      public Button(com.vaadin.flow.component.Component icon)
      Creates a button with an icon inside.
      Parameters:
      icon - the icon inside the button
      See Also:

    • Button

      public Button(String text, com.vaadin.flow.component.Component icon)
      Creates a button with a text and an icon inside.

      Use setIconAfterText(boolean) to change the order of the text and the icon.

      Parameters:
      text - the text inside the button
      icon - the icon inside the button
      See Also:

    • Button

      public Button(String text, com.vaadin.flow.component.ComponentEventListener<com.vaadin.flow.component.ClickEvent<Button>> clickListener)
      Creates a button with a text and a listener for click events.
      Parameters:
      text - the text inside the button
      clickListener - the event listener for click events
      See Also:

    • Button

      public Button(com.vaadin.flow.component.Component icon, com.vaadin.flow.component.ComponentEventListener<com.vaadin.flow.component.ClickEvent<Button>> clickListener)
      Creates a button with an icon and a listener for click events.
      Parameters:
      icon - the icon inside the button
      clickListener - the event listener for click events
      See Also:

    • Button

      public Button(String text, com.vaadin.flow.component.Component icon, com.vaadin.flow.component.ComponentEventListener<com.vaadin.flow.component.ClickEvent<Button>> clickListener)
      Create a button with a text, an icon and a listener for click events.
      Parameters:
      text - the text inside the button
      icon - the icon inside the button
      clickListener - the event listener for click events
      See Also:

  • Method Details

    • setText

      public void setText(String text)
      Sets the given string as the text content of this component.

      This method removes any existing text-content and replaces it with the given text.

      This method also sets or removes this button's theme=icon attribute based on whether this button contains only an icon after this operation or not.

      Specified by:
      setText in interface com.vaadin.flow.component.HasText
      Parameters:
      text - the text content to set, may be null to only remove existing text

    • setIcon

      public void setIcon(com.vaadin.flow.component.Component icon)
      Sets the given component as the icon of this button.

      Even though you can use almost any component as an icon, some good options are Icon and Image.

      Use setIconAfterText(boolean) to change the icon's position relative to the button's text content.

      This method also sets or removes this button's theme=icon attribute based on whether this button contains only an icon after this operation or not.

      Parameters:
      icon - component to be used as an icon, may be null to only remove the current icon, can't be a text-node

    • getIcon

      public com.vaadin.flow.component.Component getIcon()
      Gets the component that is defined as the icon of this button.
      Returns:
      the icon of this button, or null if the icon is not set

    • setIconAfterText

      public void setIconAfterText(boolean iconAfterText)
      Sets whether this button's icon should be positioned after it's text content or the other way around.

      At the element-level, this method determines whether to set slot="prefix" or slot="suffix" attribute to the icon.

      Parameters:
      iconAfterText - whether the icon should be positioned after the text content or not

    • isIconAfterText

      public boolean isIconAfterText()
      Gets whether this button's icon is positioned after it's text content or the other way around.
      Returns:
      true if this button positions it's icon after it's text content, false otherwise

    • click

      public void click()
      Simulates a click on this button on the server side if it is enabled. Calling this method executes all registered click listeners on the server side, but does not execute possible client side registered listeners.
      See Also:

    • clickInClient

      public void clickInClient()
      Executes a click on this button at the client-side. Calling this method behaves the same as if the user would have clicked on the button.

    • setAutofocus

      public void setAutofocus(boolean autofocus)
      Set the button to be input focused when the page loads.
      Parameters:
      autofocus - the boolean value to set

    • isAutofocus

      public boolean isAutofocus()
      Get the state for the auto-focus property of the button.

      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 button

    • setDisableOnClick

      public void setDisableOnClick(boolean disableOnClick)
      Set the button so that it is disabled on click.

      Enabling the button needs to happen from the server.

      Parameters:
      disableOnClick - true to disable button immediately when clicked

    • isDisableOnClick

      public boolean isDisableOnClick()
      Get if button is set to be disabled on click.
      Returns:
      true if button gets disabled on click, else false

    • remove

      protected void remove(com.vaadin.flow.component.Component... components)
      Removes the given child components from this component.
      Parameters:
      components - The components to remove.
      Throws:
      IllegalArgumentException - if any of the components is not a child of this component.

    • onAttach

      protected void onAttach(com.vaadin.flow.component.AttachEvent attachEvent)
      Overrides:
      onAttach in class com.vaadin.flow.component.Component