Package com.vaadin.client.ui

Class AbstractFieldConnector

java.lang.Object

com.vaadin.client.ui.AbstractConnector

com.vaadin.client.ui.AbstractComponentConnector

com.vaadin.client.ui.AbstractFieldConnector

All Implemented Interfaces:

com.google.gwt.event.shared.EventHandler, StateChangeEvent.StateChangeHandler, ComponentConnector, HasWidget, ServerConnector, HasErrorIndicator, HasRequiredIndicator, Connector, Serializable

Direct Known Subclasses:

AbstractDateFieldConnector, AbstractListingConnector, AbstractTextFieldConnector, CheckBoxConnector, CustomFieldConnector, ProgressBarConnector, RichTextAreaConnector, SliderConnector

public abstract class AbstractFieldConnector
extends AbstractComponentConnector
implements HasRequiredIndicator

Base class for field connectors.

Author:

Vaadin Ltd

See Also:

Serialized Form

Field Summary

Fields inherited from class com.vaadin.client.ui.AbstractComponentConnector

SIGNIFICANT_MOVE_THRESHOLD

Constructor Summary

Constructors

Constructor	Description
AbstractFieldConnector()

Method Summary

Modifier and Type	Method	Description
AbstractFieldState	getState()	Returns the shared state object for this connector.
boolean	isReadOnly()	Checks if the connector is read only.
boolean	isRequiredIndicatorVisible()	Checks if a required indicator should be shown for the given connector.
protected void	updateWidgetStyleNames()	Updates the user defined, read-only and error style names for the widget based the shared state.

Methods inherited from class com.vaadin.client.ui.AbstractComponentConnector

createWidget, delegateCaptionHandling, flush, getIcon, getIconUri, getLayoutManager, getTooltipInfo, getWidget, hasTooltip, isErrorIndicatorVisible, isRealUpdate, isRelativeHeight, isRelativeWidth, isUndefinedHeight, isUndefinedWidth, onDragSourceAttached, onDragSourceDetached, onDropTargetAttached, onDropTargetDetached, onStateChanged, onUnregister, registerTouchHandlers, sendContextClickEvent, setWidgetEnabled, setWidgetStyleName, setWidgetStyleNameWithPrefix, shouldHandleLongTap, unregisterTouchHandlers, updateComponentSize, updateComponentSize, updateEnabledState, updateWidgetSize

Methods inherited from class com.vaadin.client.ui.AbstractConnector

addStateChangeHandler, addStateChangeHandler, createState, doInit, ensureHandlerManager, fireEvent, forceStateChange, getChildren, getConnection, getConnectorId, getParent, getResourceUrl, getRpcImplementations, getRpcProxy, getStateType, getTag, hasEventListener, init, isEnabled, registerRpc, removeStateChangeHandler, removeStateChangeHandler, setChildren, setParent, setTag, unregisterRpc

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vaadin.client.ComponentConnector

delegateCaptionHandling, flush, getLayoutManager, getTooltipInfo, hasTooltip, isRelativeHeight, isRelativeWidth, isUndefinedHeight, isUndefinedWidth, setWidgetEnabled

Methods inherited from interface com.vaadin.shared.Connector

getConnectorId

Methods inherited from interface com.vaadin.client.HasWidget

getWidget

Methods inherited from interface com.vaadin.client.ServerConnector

addStateChangeHandler, addStateChangeHandler, doInit, fireEvent, getChildren, getConnection, getParent, getRpcImplementations, getTag, hasEventListener, isEnabled, onUnregister, removeStateChangeHandler, removeStateChangeHandler, setChildren, setParent, setTag, updateEnabledState

Constructor Detail

AbstractFieldConnector

public AbstractFieldConnector()

Method Detail

getState

public AbstractFieldState getState()

Description copied from class: AbstractConnector

Returns the shared state object for this connector. Override this method to define the shared state type for your connector.

Specified by:

getState in interface ComponentConnector

Specified by:

getState in interface ServerConnector

Overrides:

getState in class AbstractComponentConnector

Returns:

the current shared state (never null)

isRequiredIndicatorVisible

public boolean isRequiredIndicatorVisible()

Description copied from interface: HasRequiredIndicator

Checks if a required indicator should be shown for the given connector.

Specified by:

isRequiredIndicatorVisible in interface HasRequiredIndicator

Returns:

true to show an indicator, false otherwise

updateWidgetStyleNames

protected void updateWidgetStyleNames()

Description copied from class: AbstractComponentConnector

Updates the user defined, read-only and error style names for the widget based the shared state. User defined style names are prefixed with the primary style name of the widget returned by AbstractComponentConnector.getWidget()

This method can be overridden to provide additional style names for the component, for example see AbstractFieldConnector

Overrides:

updateWidgetStyleNames in class AbstractComponentConnector

isReadOnly

public boolean isReadOnly()

Checks if the connector is read only.

Returns:

true