org.cruxframework.crux.core.client.screen.binding

Class PropertyBinder<T,W extends com.google.gwt.user.client.ui.IsWidget>

java.lang.Object

org.cruxframework.crux.core.client.screen.binding.PropertyBinder<T,W>

public abstract class PropertyBinder<T,W extends com.google.gwt.user.client.ui.IsWidget>
extends Object

Interface for data binding between dataObjects and widgets in this view.

Author:

Thiago da Rosa de Bustamante

Field Summary

Fields

Modifier and Type	Field and Description
protected DataObjectBinder<T>	dataObjectBinder
protected W	widget

Constructor Summary

Constructors

Constructor and Description
PropertyBinder()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	bind(com.google.gwt.user.client.ui.IsWidget w)
abstract void	copyFrom(T dataObject) Transfer data from given widget to target dataObject
abstract void	copyTo(T dataObject) Transfer data from dataObject to target widget
com.google.gwt.user.client.ui.UIObject	getUiObject() Retrieve the target UIObject that is associated to this binding.
protected boolean	isBound()
protected boolean	isBoundToAttribute() Inform if this property binding references an HTML attribute or property.
protected void	listenDOMChanges() Implements DOM listening to enable Crux to update bound dataObject when DOM changes.
protected void	notifyChanges()
protected void	observeChangeEvents()
protected void	observeChangeEvents(com.google.gwt.dom.client.Element el, PropertyBinder<T,W> binder)
protected void	observeDOMChanges()
protected void	setBoundToAttribute(boolean boundToAttribute)
protected void	setDataObjectBinder(DataObjectBinder<T> dataObjectBinder)

Methods inherited from class java.lang.Object

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

Field Detail

dataObjectBinder

protected DataObjectBinder<T> dataObjectBinder

widget

protected W extends com.google.gwt.user.client.ui.IsWidget widget

Constructor Detail

PropertyBinder

public PropertyBinder()

Method Detail

bind

protected void bind(com.google.gwt.user.client.ui.IsWidget w)

setDataObjectBinder

protected void setDataObjectBinder(DataObjectBinder<T> dataObjectBinder)

isBound

protected boolean isBound()

observeDOMChanges

protected void observeDOMChanges()

observeChangeEvents

protected void observeChangeEvents()

observeChangeEvents

protected void observeChangeEvents(com.google.gwt.dom.client.Element el,
                       PropertyBinder<T,W> binder)

notifyChanges

protected void notifyChanges()

listenDOMChanges

protected void listenDOMChanges()

Implements DOM listening to enable Crux to update bound dataObject when DOM changes.

setBoundToAttribute

protected void setBoundToAttribute(boolean boundToAttribute)

isBoundToAttribute

protected boolean isBoundToAttribute()

Inform if this property binding references an HTML attribute or property. It is important for considerable performance improvements, as it allow us to avoid dirty checking to implement data binding.

Returns:

true if a binding reference an HTML attribute.

copyTo

public abstract void copyTo(T dataObject)

Transfer data from dataObject to target widget

Parameters:

dataObject -

copyFrom

public abstract void copyFrom(T dataObject)

Transfer data from given widget to target dataObject

Parameters:

dataObject -

getUiObject

public com.google.gwt.user.client.ui.UIObject getUiObject()

Retrieve the target UIObject that is associated to this binding. Default to the bound widget

Returns:

the UIObject