Package org.vaadin.miki.superfields.contentaware

Class ContentAware

  • All Implemented Interfaces:
    com.vaadin.flow.component.AttachNotifier, com.vaadin.flow.component.ClickNotifier<com.vaadin.flow.component.html.Div>, com.vaadin.flow.component.DetachNotifier, com.vaadin.flow.component.HasComponents, com.vaadin.flow.component.HasElement, com.vaadin.flow.component.HasEnabled, com.vaadin.flow.component.HasOrderedComponents, com.vaadin.flow.component.HasSize, com.vaadin.flow.component.HasStyle, com.vaadin.flow.component.HasText, Serializable, HasId, WithIdMixin<ContentAware>, ContentChangeNotifier
    @Tag("content-aware")
public class ContentAware
extends com.vaadin.flow.component.html.Div
implements ContentChangeNotifier, WithIdMixin<ContentAware>
    Content-aware that sends events when a component is added to or removed from anywhere in its contents (even in a nested layout). Observing changes to the dom structure is disabled by default.
    Since:
    2021-01-20
    Author:
    miki
    See Also:
    Serialized Form

    • Nested Class Summary

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

        com.vaadin.flow.component.HasText.WhiteSpace

    • Constructor Summary

      Constructors 
      Constructor Description
      ContentAware()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      com.vaadin.flow.shared.Registration addContentChangeListener​(ContentChangeListener listener)
      Adds a listener to be notified whenever ContentChangeEvent happens.
      boolean isActive()
      Checks whether observation for changes is active.
      protected void onAttach​(com.vaadin.flow.component.AttachEvent attachEvent)  
      void setActive​(boolean active)
      Activates or deactivates observation for changes in the dom structure.

      • Methods inherited from class com.vaadin.flow.component.HtmlComponent

        getTitle, setTitle

      • 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, scrollIntoView, set, setElement, setId, setVisible

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

        addAttachListener

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

        addClickListener, addClickShortcut

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

        addDetachListener

      • Methods inherited from interface com.vaadin.flow.component.HasComponents

        add, add, add, addComponentAsFirst, addComponentAtIndex, remove, remove, removeAll

      • 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.HasOrderedComponents

        getChildren, getComponentAt, getComponentCount, indexOf, replace

      • 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.HasText

        getText, getWhiteSpace, setText, setWhiteSpace

    • Constructor Detail

      • ContentAware

        public ContentAware()

    • Method Detail

      • onAttach

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

      • isActive

        public boolean isActive()
        Checks whether observation for changes is active.
        Returns:
        Whether or not changes to the dom structure are reported to this object; false by default.

      • setActive

        public void setActive​(boolean active)
        Activates or deactivates observation for changes in the dom structure.
        Parameters:
        active - Whether or not to listen to changes.