com.goldencode.p2j.admin.client.application.home

Class ViewStateMachineImpl

java.lang.Object

com.goldencode.p2j.admin.client.application.home.ViewStateMachineImpl

All Implemented Interfaces:

ViewStateMachine

public class ViewStateMachineImpl
extends java.lang.Object
implements ViewStateMachine

ViewStateMachineImpl implements methods to change view's states.

Nested Class Summary

Nested classes/interfaces inherited from interface com.goldencode.p2j.admin.client.application.home.ViewStateMachine

ViewStateMachine.State, ViewStateMachine.TransitionState

Field Summary

Fields

Modifier and Type	Field and Description
private com.google.gwt.user.client.ui.HasEnabled[]	widgets The widgets which enabled states are controlled by this state machine

Constructor Summary

Constructors

Constructor and Description
ViewStateMachineImpl(com.google.gwt.user.client.ui.HasEnabled[] widgets) Creates the instance of the view state machine.
ViewStateMachineImpl(com.google.inject.Provider<com.google.gwt.user.client.ui.HasEnabled[]> view) Creates the instance of the view state machine.

Method Summary

Modifier and Type	Method and Description
ViewStateMachine.State	apply(ViewStateMachine.TransitionState transition) It changes the current state according to the provided transition state and returns the previous state.
void	init(ViewStateMachine.State current) It initializes the current state.
void	stateMachine(boolean[] newState) Sets the state of the components according to the encoded array.
void	stateMachine(boolean[] which, boolean[] newState) Selectively sets the state of the components according to the encoded array.
boolean[]	stateMachineModal(boolean[] which, boolean[] newState) Selectively sets the state of the components according to the encoded array and returns the array of the saved current state.

Methods inherited from class java.lang.Object

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

Field Detail

widgets

private final com.google.gwt.user.client.ui.HasEnabled[] widgets

The widgets which enabled states are controlled by this state machine

Constructor Detail

ViewStateMachineImpl

public ViewStateMachineImpl(com.google.inject.Provider<com.google.gwt.user.client.ui.HasEnabled[]> view)

Creates the instance of the view state machine.

Parameters:

view - The widgets provider

ViewStateMachineImpl

public ViewStateMachineImpl(com.google.gwt.user.client.ui.HasEnabled[] widgets)

Creates the instance of the view state machine.

Parameters:

widgets - The widgets under control

Method Detail

stateMachine

public void stateMachine(boolean[] newState)

Sets the state of the components according to the encoded array.

Specified by:

stateMachine in interface ViewStateMachine

Parameters:

newState - array of boolean states, one per component, in a predefined order. true means enabled.

stateMachine

public void stateMachine(boolean[] which,
                         boolean[] newState)

Selectively sets the state of the components according to the encoded array.

Specified by:

stateMachine in interface ViewStateMachine

Parameters:

which - array of booleans acting as a mask,one boolean per component. true means component changes state as specified in newState array.

newState - array of boolean states, one per component, in a predefined order. true means enabled.

stateMachineModal

public boolean[] stateMachineModal(boolean[] which,
                                   boolean[] newState)

Selectively sets the state of the components according to the encoded array and returns the array of the saved current state. The saved state can be used as input to the stateMachine(boolean[]) method call.

Specified by:

stateMachineModal in interface ViewStateMachine

Parameters:

which - array of booleans acting as a mask,one boolean per component. true means component changes state as specified in newState array.

newState - array of boolean states, one per component, in a predefined order. true means enabled.

Returns:

saved state of all components

init

public void init(ViewStateMachine.State current)

It initializes the current state.

Specified by:

init in interface ViewStateMachine

Parameters:

current - The current initial state

apply

public ViewStateMachine.State apply(ViewStateMachine.TransitionState transition)

It changes the current state according to the provided transition state and returns the previous state.

Specified by:

apply in interface ViewStateMachine

Parameters:

transition - The provided transition state

Returns:

The previous state