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com.vaadin.flow.component.accordion.
Class Accordion
- java.lang.Object
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- com.vaadin.flow.component.Component
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- com.vaadin.flow.component.accordion.Accordion
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All Implemented Interfaces:
AttachNotifier, DetachNotifier, HasElement, HasSize, HasStyle, Serializable
@Tag(value="vaadin-accordion") @NpmPackage(value="@vaadin/vaadin-accordion", version="1.2.0") @JsModule(value="@vaadin/vaadin-accordion/src/vaadin-accordion.js") public class Accordion extends Component implements HasSize, HasStyleAccordion is a a vertically stacked set of expandable panels. Only one panel can be opened at a time.
See Also:
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Nested Class Summary
Nested Classes Modifier and Type Class and Description static classAccordion.OpenedChangeEventAn event fired when an Accordion is opened or closed.
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Constructor Summary
Constructors Constructor and Description Accordion()
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Method Summary
All Methods Modifier and Type Method and Description AccordionPaneladd(AccordionPanel panel)Adds a panel.
AccordionPaneladd(String summary, Component content)Adds a panel created from the given title and content.
RegistrationaddOpenedChangeListener(ComponentEventListener<Accordion.OpenedChangeEvent> listener)Registers a listener to be notified whenever a panel is opened or closed.
voidclose()Closes the opened panel (if any) in this accordion.
OptionalIntgetOpenedIndex()Gets the index of the currently opened index.
Optional<AccordionPanel>getOpenedPanel()Gets the opened panel.
voidopen(AccordionPanel panel)Opens the specified panel.
voidopen(int index)Opens the panel at the specified index.
voidremove(AccordionPanel panel)Removes a panel.
voidremove(Component content)Removes a panel based on the content
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Methods inherited from class com.vaadin.flow.component.Component
addListener, fireEvent, from, get, getChildren, getElement, getEventBus, getId, getLocale, getParent, getTranslation, getTranslation, getUI, hasListener, isAttached, isTemplateMapped, isVisible, onAttach, onDetach, onEnabledStateChanged, set, setElement, setId, setVisible
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.vaadin.flow.component.HasSize
getCssSize, getHeight, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getWidth, setHeight, setHeight, setHeightFull, setMaxHeight, setMaxHeight, setMaxWidth, setMaxWidth, setMinHeight, setMinHeight, setMinWidth, setMinWidth, setSizeFull, setSizeUndefined, setWidth, setWidth, setWidthFull
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Methods inherited from interface com.vaadin.flow.component.HasStyle
addClassName, addClassNames, getClassName, getClassNames, getStyle, hasClassName, removeClassName, removeClassNames, setClassName, setClassName
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Methods inherited from interface com.vaadin.flow.component.HasElement
getElement
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Methods inherited from interface com.vaadin.flow.component.AttachNotifier
addAttachListener
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Methods inherited from interface com.vaadin.flow.component.DetachNotifier
addDetachListener
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Method Detail
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add
public AccordionPanel add(String summary, Component content)Adds a panel created from the given title and content.
Parameters:
summary- the title of the panelcontent- the content of th panelReturns:
the panel created and added
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add
public AccordionPanel add(AccordionPanel panel)Adds a panel.
Parameters:
panel- the non-null panel to be addedReturns:
the added panel
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remove
public void remove(AccordionPanel panel)Removes a panel.
Parameters:
panel- the non-null panel to be removed
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remove
public void remove(Component content)Removes a panel based on the content
Parameters:
content- the non-null content of the panel to be removed
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close
public void close()Closes the opened panel (if any) in this accordion.
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open
public void open(int index)Opens the panel at the specified index.
Parameters:
index- the (positive) index of the panel to be open. The first panel is at index zero.
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open
public void open(AccordionPanel panel)Opens the specified panel.
Parameters:
panel- the non-null panel to be opened
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getOpenedIndex
@Synchronize(property="opened", value="opened-changed") public OptionalInt getOpenedIndex()Gets the index of the currently opened index.
Returns:
the index of the opened panel or null if the accordion is closed.
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getOpenedPanel
@Synchronize(property="opened", value="opened-changed") public Optional<AccordionPanel> getOpenedPanel()Gets the opened panel. Caution should be exercised when using this method with an Accordion which along with its panels were created in a template. Such template children would by default not be children of the Accordion Flow component, thus making it possible for this method to return the wrong panel in such cases.
Returns:
the opened panel.
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addOpenedChangeListener
public Registration addOpenedChangeListener(ComponentEventListener<Accordion.OpenedChangeEvent> listener)Registers a listener to be notified whenever a panel is opened or closed.
Parameters:
listener- the listener to be notifiedReturns:
a handle to the registered listener which could also be used to unregister it.
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