com.vaadin.flow.component.notification

Class GeneratedVaadinNotification<R extends GeneratedVaadinNotification<R>>

java.lang.Object

com.vaadin.flow.component.Component

com.vaadin.flow.component.notification.GeneratedVaadinNotification<R>

All Implemented Interfaces:

AttachNotifier, DetachNotifier, HasElement, Serializable

Direct Known Subclasses:

Notification

@Tag(value="vaadin-notification")
 @NpmPackage(value="@vaadin/vaadin-notification",
            version="1.6.2")
 @JsModule(value="@vaadin/vaadin-notification/src/vaadin-notification.js")
public abstract class GeneratedVaadinNotification<R extends GeneratedVaadinNotification<R>>
extends Component

Description copied from corresponding location in WebComponent:

<vaadin-notification> is a Web Component providing accessible and customizable notifications (toasts). The content of the notification can be populated in two ways: imperatively by using renderer callback function and declaratively by using Polymer's Templates.

Rendering

By default, the notification uses the content provided by using the renderer callback function.

The renderer function provides root, notification arguments. Generate DOM content, append it to the root element and control the state of the host element by accessing notification. Before generating new content, users are able to check if there is already content in root for reusing it.

<vaadin-notification id="notification"></vaadin-notification> const notification = document.querySelector('#notification'); notification.renderer = function(root) root.textContent = "Your work has been saved"; ;}

Renderer is called on the opening of the notification. DOM generated during the renderer call can be reused in the next renderer call and will be provided with the root argument. On first call it will be empty.

Polymer Templates

Alternatively, the content can be provided with Polymer's Template. Notification finds the first child template and uses that in case renderer callback function is not provided. You can also set a custom template using the template property.

<vaadin-notification> <template> Your work has been saved </template> </vaadin-notification>

Styling

<vaadin-notification> uses <vaadin-notification-card> internal themable component as the actual visible notification cards. See the stylable parts the <vaadin-notification-card> API.

Note: the theme attribute value set on <vaadin-notification> is propagated to the internal <vaadin-notification-card>.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GeneratedVaadinNotification.OpenedChangeEvent<R extends GeneratedVaadinNotification<R>>

Constructor Summary

Constructors

Constructor and Description
GeneratedVaadinNotification()

Method Summary

Modifier and Type	Method and Description
protected Registration	addOpenedChangeListener(ComponentEventListener<GeneratedVaadinNotification.OpenedChangeEvent<R>> listener) Adds a listener for opened-changed events fired by the webcomponent.
protected void	close() Description copied from corresponding location in WebComponent:
protected double	getDurationDouble() Description copied from corresponding location in WebComponent:
protected String	getPositionString() Description copied from corresponding location in WebComponent:
protected boolean	isOpenedBoolean() Description copied from corresponding location in WebComponent:
protected void	open() Description copied from corresponding location in WebComponent:
protected void	render() Description copied from corresponding location in WebComponent:
protected void	setDuration(double duration) Description copied from corresponding location in WebComponent:
protected void	setOpened(boolean opened) Description copied from corresponding location in WebComponent:
protected void	setPosition(String position) Description copied from corresponding location in WebComponent:

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.AttachNotifier

addAttachListener

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

addDetachListener

Constructor Detail

GeneratedVaadinNotification

public GeneratedVaadinNotification()

Method Detail

getDurationDouble

protected double getDurationDouble()

Description copied from corresponding location in WebComponent:

The duration in milliseconds to show the notification. Set to 0 or a negative number to disable the notification auto-closing.

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 duration property from the webcomponent

setDuration

protected void setDuration(double duration)

Description copied from corresponding location in WebComponent:

The duration in milliseconds to show the notification. Set to 0 or a negative number to disable the notification auto-closing.

Parameters:

duration - the double value to set

isOpenedBoolean

@Synchronize(property="opened",
             value="opened-changed")
protected boolean isOpenedBoolean()

Description copied from corresponding location in WebComponent:

True if the notification is currently displayed.

This property is synchronized automatically from client side when a 'opened-changed' event happens.

Returns:

the opened property from the webcomponent

setOpened

protected void setOpened(boolean opened)

Description copied from corresponding location in WebComponent:

True if the notification is currently displayed.

Parameters:

opened - the boolean value to set

getPositionString

protected String getPositionString()

Description copied from corresponding location in WebComponent:

Alignment of the notification in the viewport Valid values are top-stretch|top-start|top-center|top-end|middle|bottom-start|bottom-center|bottom-end|bottom-stretch

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 position property from the webcomponent

setPosition

protected void setPosition(String position)

Description copied from corresponding location in WebComponent:

Alignment of the notification in the viewport Valid values are top-stretch|top-start|top-center|top-end|middle|bottom-start|bottom-center|bottom-end|bottom-stretch

Parameters:

position - the String value to set

render

protected void render()

Description copied from corresponding location in WebComponent:

Manually invoke existing renderer.

open

protected void open()

Description copied from corresponding location in WebComponent:

Opens the notification.

close

protected void close()

Description copied from corresponding location in WebComponent:

Closes the notification.

addOpenedChangeListener

protected Registration addOpenedChangeListener(ComponentEventListener<GeneratedVaadinNotification.OpenedChangeEvent<R>> listener)

Adds a listener for opened-changed events fired by the webcomponent.

Parameters:

listener - the listener

Returns:

a Registration for removing the event listener