Package org.eclipse.gef.common.activate

Class ActivatableSupport

java.lang.Object

org.eclipse.gef.common.activate.ActivatableSupport

public class ActivatableSupport
extends Object

A support class to manage the activeProperty state for a source IActivatable. It offers all methods defined by IActivatable, while not formally implementing the interface, and can thus be used by a source IActivatable as a delegate.

Property Summary

Properties

Type	Property	Description
ReadOnlyBooleanProperty	active	Returns a ReadOnlyBooleanProperty that reflects the activeProperty state of this ActivatableSupport.

Constructor Summary

Constructors

Constructor	Description
ActivatableSupport(IActivatable source)	Creates a new ActivatableSupport for the given source IActivatable.

Method Summary

Modifier and Type	Method	Description
void	activate(Runnable preActivationCallback, Runnable postActivationCallback)	Activates this ActivatableSupport if it is not yet active.
ReadOnlyBooleanProperty	activeProperty()	Returns a ReadOnlyBooleanProperty that reflects the activeProperty state of this ActivatableSupport.
void	deactivate(Runnable preDeactivationCallback, Runnable postDeactivationCallback)	Deactivates this ActivatableSupport if it is not yet inactive.
boolean	isActive()	Reports whether this ActivatableSupport is activeProperty or inactive.

Methods inherited from class java.lang.Object

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

Property Details

active

public ReadOnlyBooleanProperty activeProperty

Returns a ReadOnlyBooleanProperty that reflects the activeProperty state of this ActivatableSupport.

See Also:

• isActive()

Constructor Details

ActivatableSupport

public ActivatableSupport(IActivatable source)

Creates a new ActivatableSupport for the given source IActivatable.

Parameters:

source - The IActivatable that encloses the to be created ActivatableSupport, delegating calls to it. May not be null

Method Details

activate

public void activate(Runnable preActivationCallback,
 Runnable postActivationCallback)

Activates this ActivatableSupport if it is not yet active.

Parameters:

preActivationCallback - An optional callback that is executed before the active state is set.

postActivationCallback - An optional callback that is executed after the active state has been set.

See Also:

• IActivatable.activate()

activeProperty

public ReadOnlyBooleanProperty activeProperty()

Returns a ReadOnlyBooleanProperty that reflects the activeProperty state of this ActivatableSupport.

See Also:

• isActive()

deactivate

public void deactivate(Runnable preDeactivationCallback,
 Runnable postDeactivationCallback)

Deactivates this ActivatableSupport if it is not yet inactive.

Parameters:

preDeactivationCallback - An optional callback that is executed before the active state is unset.

postDeactivationCallback - An optional callback that is executed after the active state has been unset.

See Also:

• IActivatable.deactivate()

isActive

public boolean isActive()

Reports whether this ActivatableSupport is activeProperty or inactive.

Returns:

true in case the ActivatableSupport is activeProperty, false otherwise.

See Also:

• IActivatable.isActive()