Package com.levigo.jadice.web.client.util.action

Class ActionManager

java.lang.Object

com.levigo.jadice.web.client.util.action.ActionManager

public class ActionManager
extends Object

A manager for ActionRegistrys. The manager holds an ActionRegistry for each context. The actions are registered to the ActionRegistry belonging to their personal context.

To react to KeyEvents the ActionManager has to be initialized with a view component. The view component should be always visible.

Constructor Summary

Constructors

Constructor	Description
ActionManager()

Method Summary

Modifier and Type	Method	Description
static void	disable()	Disables the ActionManager, so no actions will be performed
static RegisteredAction	getRegisteredAction(Command command, Collection<Object> context)	Returns a registered action in the given context with the given command if there is one.
static void	registerAction(RegisteredAction action)	Registers the RegisteredAction in the ActionRegistry of its context.
static void	registerAlternativeAcceleratorKey(RegisteredAction action)	If the alternative KeyStroke is set to an RegisteredAction after the creation, the alternative KeyStroke can be registered here by calling this method.
static void	removeHandler(Object context)	Removes an existing DOM-Handler from a given object.
static void	removeRegisteredActionsForContext(Collection<Object> context)	Removes all actions which are registered in the given Context.

Methods inherited from class java.lang.Object

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

Constructor Details

ActionManager

public ActionManager()

Method Details

removeHandler

public static void removeHandler(Object context)

Removes an existing DOM-Handler from a given object.

Parameters:

context -

registerAction

public static void registerAction(RegisteredAction action)
                           throws RegistrationException

Registers the RegisteredAction in the ActionRegistry of its context.

Parameters:

action - the action to register

Throws:

RegistrationException - when the accelerator or alternative accelerator key of the given RegisteredAction is already bound to an existing (i.e. previously registered) action

registerAlternativeAcceleratorKey

public static void registerAlternativeAcceleratorKey(RegisteredAction action)
                                              throws RegistrationException

If the alternative KeyStroke is set to an RegisteredAction after the creation, the alternative KeyStroke can be registered here by calling this method.

This method is automatically called by a RegisteredAction.

Parameters:

action - the action for which the alternative KeyStroke should be registered

Throws:

RegistrationException - when the alternative KeyStroke of the given action is already bound to a previously registered action

getRegisteredAction

public static RegisteredAction getRegisteredAction(Command command,
 Collection<Object> context)

Returns a registered action in the given context with the given command if there is one.

Parameters:

command - the command for which the registered action should be returned

context - the context of the action

Returns:

the registered action

removeRegisteredActionsForContext

public static void removeRegisteredActionsForContext(Collection<Object> context)

Removes all actions which are registered in the given Context.

Parameters:

context - the Context for which the actions should be deregistered

disable

public static void disable()

Disables the ActionManager, so no actions will be performed