/*
* Copyright (c) 2011, grossmann
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the jo-widgets.org nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
package org.jowidgets.impl.model.item;
import java.util.LinkedList;
import java.util.List;
import org.jowidgets.api.command.IAction;
import org.jowidgets.api.command.IActionChangeListener;
import org.jowidgets.api.command.IActionChangeObservable;
import org.jowidgets.api.model.item.ActionItemVisibilityAspectPlugin;
import org.jowidgets.common.image.IImageConstant;
import org.jowidgets.common.types.Accelerator;
import org.jowidgets.common.widgets.controller.IActionListener;
import org.jowidgets.tools.command.ActionChangeAdapter;
import org.jowidgets.tools.controller.ActionObservable;
import org.jowidgets.util.IDecorator;
import org.jowidgets.util.priority.IPriorityValue;
import org.jowidgets.util.priority.LowHighPriority;
import org.jowidgets.util.priority.PrioritizedResultCreator;
abstract class AbstractActionItemModelImpl extends ItemModelImpl {
private final ActionObservable actionObservable;
private final List<IDecorator<IAction>> decorators;
private final IActionChangeListener actionChangeListener;
private final ActionItemVisibilityAspectComposite visibilityAspect;
private IAction action;
private IAction decoratedAction;
private boolean decoratorsDirty;
protected AbstractActionItemModelImpl() {
this(null, null, null, null, null, null, true, null, null);
}
protected AbstractActionItemModelImpl(
final String id,
final String text,
final String toolTipText,
final IImageConstant icon,
final Accelerator accelerator,
final Character mnemonic,
final boolean enabled,
final IAction action,
final ActionItemVisibilityAspectComposite visibilityAspect) {
super(id, text, toolTipText, icon, accelerator, mnemonic, enabled);
this.decorators = new LinkedList<IDecorator<IAction>>();
this.actionObservable = new ActionObservable();
this.action = action;
this.decoratedAction = action;
this.decoratorsDirty = false;
this.visibilityAspect = visibilityAspect;
this.actionChangeListener = new ActionChangeAdapter() {
@Override
public void enabledChanged() {
final boolean oldVisible = isVisible();
setVisibilityFromAspects();
if (oldVisible != isVisible()) {
fireItemChanged();
}
}
};
setActionImpl(action);
}
protected void setContent(final AbstractActionItemModelImpl source) {
super.setContent(source);
setActionImpl(source.getAction());
}
public IAction getAction() {
return getDecoratedAction();
}
private IAction getDecoratedAction() {
if (action == null) {
return null;
}
if (decoratorsDirty) {
decoratedAction = action;
for (final IDecorator<IAction> decorator : decorators) {
decoratedAction = decorator.decorate(decoratedAction);
}
decoratorsDirty = false;
}
return decoratedAction;
}
public void setAction(final IAction action) {
setActionImpl(action);
fireItemChanged();
}
private void setActionImpl(final IAction action) {
if (this.action != null) {
final IActionChangeObservable actionChangeObservable = this.action.getActionChangeObservable();
if (actionChangeObservable != null) {
actionChangeObservable.removeActionChangeListener(actionChangeListener);
}
}
if (action != null) {
final IActionChangeObservable actionChangeObservable = action.getActionChangeObservable();
if (actionChangeObservable != null) {
actionChangeObservable.addActionChangeListener(actionChangeListener);
}
}
this.action = action;
decoratorsDirty = true;
setVisibilityFromAspects();
}
private void setVisibilityFromAspects() {
final PrioritizedResultCreator<Boolean, LowHighPriority> resultCreator;
resultCreator = new PrioritizedResultCreator<Boolean, LowHighPriority>(LowHighPriority.HIGH);
if (visibilityAspect != null) {
resultCreator.addResult(visibilityAspect.getVisibility(getAction()));
}
if (!resultCreator.hasMaxPrio()) {
resultCreator.addResult(ActionItemVisibilityAspectPlugin.getVisibility(getAction()));
}
final IPriorityValue<Boolean, LowHighPriority> visibility = resultCreator.getResult();
if (visibility != null) {
final Boolean visibiliyValue = visibility.getValue();
if (visibiliyValue != null) {
setVisibleImpl(visibiliyValue.booleanValue(), false);
}
}
}
public void addDecorator(final IDecorator<IAction> decorator) {
decorators.add(decorator);
decoratorsDirty = true;
fireItemChanged();
}
public void removeDecorator(final IDecorator<IAction> decorator) {
decorators.remove(decorator);
decoratorsDirty = true;
fireItemChanged();
}
public void addActionListener(final IActionListener listener) {
actionObservable.addActionListener(listener);
}
public void removeActionListener(final IActionListener listener) {
actionObservable.removeActionListener(listener);
}
public void actionPerformed() {
actionObservable.fireActionPerformed();
}
}